CN113694697A - Waste gas treatment device in coal tar course of working - Google Patents
Waste gas treatment device in coal tar course of working Download PDFInfo
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- CN113694697A CN113694697A CN202111011123.1A CN202111011123A CN113694697A CN 113694697 A CN113694697 A CN 113694697A CN 202111011123 A CN202111011123 A CN 202111011123A CN 113694697 A CN113694697 A CN 113694697A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/14—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by absorption
- B01D53/18—Absorbing units; Liquid distributors therefor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/14—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by absorption
- B01D53/1425—Regeneration of liquid absorbents
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/14—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by absorption
- B01D53/1456—Removing acid components
- B01D53/1468—Removing hydrogen sulfide
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/14—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by absorption
- B01D53/1487—Removing organic compounds
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Abstract
本发明涉及一种煤焦油加工过程中的废气处理装置，包括吸收塔本体，所述吸收塔本体的底端连接有集液箱，还包括收集罩和吸收液循环机构，所述吸收塔本体的左侧设置有收集罩，所述收集罩有多个，每个所述收集罩均包括外罩、内罩和隔离板，所述吸收塔本体下部设置有吸收液循环机构，所述吸收液循环机构包括分液部和循环部，分液部包括折流板、导液板、储液环和分液槽，所述循环部包括循环管和化工泵，所述循环包括第一循环管、第二循环管、第三循环管和第四循环管，所述化工泵包括第一化工泵和第二化工泵。本发明可以使用一套设备综合处理煤焦油加工过程中的废气，减少处理设备数量，缩小占地面积，减小成本和资金投入。
The invention relates to a waste gas treatment device in a coal tar processing process, comprising an absorption tower body, a liquid collecting tank is connected to the bottom end of the absorption tower body, a collection cover and an absorption liquid circulation mechanism. The left side is provided with a collection hood, there are multiple collection hoods, each of the collection hoods includes an outer cover, an inner cover and an isolation plate, the lower part of the absorption tower body is provided with an absorption liquid circulation mechanism, the absorption liquid circulation mechanism It includes a liquid separation part and a circulation part, the liquid separation part includes a baffle, a liquid guide plate, a liquid storage ring and a liquid separation tank, the circulation part includes a circulation pipe and a chemical pump, and the circulation includes a first circulation pipe, a second circulation pipe A circulation pipe, a third circulation pipe and a fourth circulation pipe, the chemical pump includes a first chemical pump and a second chemical pump. The invention can use a set of equipment to comprehensively treat the waste gas in the coal tar processing process, reduce the number of treatment equipment, reduce the floor space, and reduce the cost and capital investment.
Description
Technical Field
The invention relates to the technical field of absorption towers, in particular to a waste gas treatment device in a coal tar processing process.
Background
Coal tar is an organic mixture mainly comprising polycyclic and heterocyclic compounds, and the processing and refining of coal tar is an important branch of modern coal chemical industry. Due to the disordered development of the coking industry in recent years, great pressure is brought to environmental protection and energy, due to the support of national industrial policies and the increase of the yield of coal tar, the coal tar chemical industry develops rapidly in recent years, and the influence of waste gas generated in the coal tar chemical industry process on the environment is more and more paid attention by people.
The waste gas generating point of the coal tar mainly comprises a diffusing pipe of an oil groove, a diffusing pipe of a condensing and cooling device, an asphalt forming machine, an industrial naphthalene forming machine, waste gas generated by decomposition of sodium phenolate during extraction of crude phenol and the like. The main pollutants are H2S, BaP, naphthalene dust, ammonia, asphalt smoke and the like.
The waste gas is usually absorbed and intensively treated by using an absorption tower, but due to different pollutant properties, a plurality of absorption towers are usually required to respectively absorb different waste gases by using different absorption liquids, so that the absorption efficiency is low, the equipment is more, the cost is high, the occupied area is wide, and the fund is wasted.
Disclosure of Invention
The invention provides a waste gas treatment device in a coal tar processing process, aiming at solving the problems that a plurality of absorption towers are required to respectively absorb different waste gases by using different absorption liquids in the existing coal tar processing process, so that the absorption efficiency is low, the number of devices is large, the cost is high, the occupied area is wide, and the capital is wasted.
In order to achieve the purpose, the technical scheme of the invention is as follows:
a waste gas treatment device in the coal tar processing process comprises an absorption tower body, wherein a fan is arranged at the lower part of the left side of the absorption tower body, the fan is communicated with the air inlet of the absorption tower body, the top of the absorption tower body is upwards communicated with an exhaust pipeline, a demister is arranged in the top of the absorption tower body, two liquid distributors are arranged below the demister, a redistributor is arranged in the middle of the inner wall of the absorption tower body and is positioned below the two liquid distributors, two packing layers are arranged inside the absorption tower body, the two packing layers are respectively positioned between the lower part of the redistributor and the upper part of the inner end of the air inlet of the absorption tower body and between the liquid distributor and the redistributor, the bottom end of the absorption tower body is connected with a liquid collecting box, the liquid collecting box is a hollow cylinder with an opening at the upper end, and the absorption tower further comprises a collecting cover and an absorption liquid circulating mechanism;
the air inlet of the fan is connected with a plurality of collecting covers, each collecting cover comprises an outer cover, an inner cover and a partition plate, the outer cover is a hollow round table with a small upper part and a large lower part and upper and lower end openings, the upper end of the outer cover is connected with the fan through an air pipe, the lower end of the outer cover is provided with a connecting cylinder, the connecting cylinder is a cylinder with the diameter consistent with that of the lower end of the outer cover and upper and lower end openings, the upper end of the connecting cylinder is connected with the lower end of the outer cover, the inner cover is arranged in the outer cover and is a hollow cone with the lower end flush with the lower end of the connecting cylinder and the lower end opening, a distance is reserved between the outer peripheral wall of the inner cover and the inner peripheral wall of the outer cover, air holes are uniformly distributed in the inner cover, a plurality of connecting plates are annularly arrayed between the lower end of the outer peripheral wall of the inner cover and the lower end of the inner peripheral wall of the connecting cylinder, air holes are formed between two adjacent connecting plates, and each air hole is connected with the partition plate below the air hole, every the division board all includes first plate body, second plate body and honeycomb duct, first plate body and second plate body are the transparent plate body that PE made, first plate body and second plate body shape size are the same, and relative setting, are provided with the honeycomb duct along first plate body and second plate body direction of height between the relative side middle part of first plate body and second plate body, and honeycomb duct perisporium both sides are connected respectively to first plate body and second plate body relative side, the honeycomb duct is the PE hose of lower extreme confined, and the equipartition has a circular through hole that runs through the honeycomb duct perisporium on the honeycomb duct, and the equipartition has a plurality of bracing pieces between the first plate body outside the honeycomb duct and the second plate body relative side, the relative side of first plate body and second plate body is connected respectively at the both ends of bracing piece, the inner cover lower extreme is connected to first plate body upper end of division board, second plate body upper end connection connecting cylinder lower extreme, The upper end of the flow guide pipe is vertically opposite to the vent hole, and a space is reserved between every two adjacent partition plates;
the absorption liquid circulating mechanism comprises a liquid separating part and a circulating part, the liquid separating part is positioned in the liquid collecting box and comprises a baffle plate, a liquid guide plate, a liquid storage ring and a liquid separating groove, the baffle plate is a U-arc arched plate body positioned in the upper part of the liquid collecting box, the periphery of the U-arc arched plate body is formed by connecting two ends of a U-arc edge with two ends of a straight edge, the U-arc edge of the baffle plate is connected with the upper part of the inner peripheral wall of the liquid collecting box, the straight edge of the baffle plate is the rear end of the baffle plate, a distance is reserved between the rear end of the baffle plate and the inner rear wall of the liquid collecting box, the space above the baffle plate in the liquid collecting box is a liquid storage space, the liquid guide plate is a vertical rectangular plate body, the upper end of the liquid guide plate is connected with the rear end of the lower surface of the lower end of the liquid guide plate and downwards penetrates through the top of the liquid storage ring, the left side and the right side of the liquid guide plate are both connected with the inner peripheral wall of the liquid collecting box, and an arched column-shaped liquid guide space with openings at the upper end and lower end of the inner rear wall of the liquid collecting box is formed between the liquid guide plate and the liquid collecting box, the upper end of the liquid guide space is communicated with the liquid storage space, the lower end of the liquid guide space is communicated with a liquid storage ring, the liquid storage ring is an annular space which is formed by a filter plate, a filter cylinder, the lower part of the inner peripheral wall of the liquid collection tank and the inner bottom surface of the liquid collection tank in a surrounding way, the outer diameter of the filter cylinder is smaller than the diameter of the inner peripheral wall of the liquid collection tank, the lower end of the filter cylinder is connected with the inner bottom surface of the liquid collection tank, the upper end of the filter cylinder is higher than the lower end of the liquid guide plate, the front part of the peripheral wall of the filter cylinder is uniformly provided with a plurality of circular water through holes which penetrate through the inner peripheral wall and the outer peripheral wall of the filter cylinder, the outer ring surface of the filter plate is connected with the lower part of the inner peripheral wall of the liquid collection tank, the rear part of the filter plate is provided with notches which are corresponding to the upper part and the lower part of the liquid guide plate and the liquid guide space, the front part of the filter plate is uniformly provided with a plurality of circular oil through holes which penetrate through the upper surface and the upper part and the lower part of the filter plate, the liquid separation groove is arranged in the liquid collection tank between the baffle plate and the liquid storage ring, the liquid separation tank comprises a sliding frame and a separation plate, the sliding frame is a cylindrical body with a U-arc-shaped cross section, the peripheral wall of the sliding frame is in sliding contact with the inner wall of the liquid collection tank and the front side face of the liquid guide plate respectively, an integrated separation plate is connected inside the sliding frame, the separation plate is a plate body corresponding to the inner caliber of the sliding frame, separation holes penetrating through the upper surface and the lower surface of the separation plate are uniformly distributed in the separation plate, the separation holes are circular through holes, an oil discharge pipe penetrating through the upper surface and the lower surface of the separation plate is connected to the center of the separation plate, the upper end of the oil discharge pipe penetrates through the upper surface of the separation plate and is flush with the upper end of the sliding frame, the lower end of the oil discharge pipe penetrates through the lower surface of the separation plate and is located below the separation plate, the lower end of the oil discharge pipe is connected with a corrugated pipe made of rubber, and the lower end of the corrugated pipe extends downwards into the filter cylinder;
the circulating part comprises a circulating pipe and a chemical pump, the circulating pipe comprises a first circulating pipe, a second circulating pipe, a third circulating pipe and a fourth circulating pipe, the chemical pump comprises a first chemical pump and a second chemical pump, the lower end of the corrugated pipe is connected with a first circulating pipe, the outer end of the first circulating pipe penetrates through the right end of the peripheral wall of the filter cylinder and the right end of the peripheral wall of the liquid collecting tank to extend out of the liquid collecting tank, the outer end of the first circulating pipe is connected with a first chemical pump, the outlet of the first chemical pump is connected with one liquid distributor positioned below the two liquid distributors through a second circulating pipe, a third circulating pipe is arranged in the left part of the filter cylinder, the outer end of the third circulating pipe penetrates through the left end of the peripheral wall of the filter cylinder and the left end of the peripheral wall of the liquid collecting tank to extend out of the liquid collecting tank, the outer end of the third circulating pipe is connected with a second chemical pump, and the outlet of the second chemical pump is connected with the upper liquid distributor in the two liquid distributors through a fourth circulating pipe.
Furthermore, the upper surface of the baffle plate is uniformly provided with sharp spines, the sharp spines are cones with upward tips, the baffle plate and the filter plate are respectively provided with a distance sensor with a measuring end facing the direction of the sliding frame, and the front part of the upper end of the filter cylinder is higher than the rear part of the upper end of the filter cylinder.
Further, the middle part in the stock solution space is provided with the stirring rake of arranging the spine top in, the motor is connected through the transmission shaft of right angle commutator to the axle of stirring rake, the liquid collecting box outer wall rear end is arranged in to the motor, the right angle commutator is installed in the carrier tube, the carrier tube is the square body of both ends connection on the inner wall around the liquid collecting box, and the width of carrier tube is less than 1/2 of liquid collecting box internal diameter.
Furthermore, a plurality of ultrasonic generators are arranged on the inner bottom surface of the liquid collecting tank below the filter plate at intervals except the liquid guide space, the outer top surface of the inner end of the third circulating pipe is lower than the center of the multi-row water through holes in the total height direction, and the outer bottom surface of the inner end of the third circulating pipe is higher than the top surfaces of the ultrasonic generators.
Furthermore, the separation plate is a plate body with a high middle part, a low edge and an upward bulge, the edge of the lower surface of the separation plate is flush with the lower end of the sliding frame, and the separation plate is made of acrylic and has the apparent density of 1.2g/cm3The sliding frame is made of acrylic and has an apparent density of 1.2g/cm3The cylindrical body of (1).
Furthermore, a support ring is arranged in the corrugated pipe, and the support ring is a ring body connected to the inner wall of the corrugated pipe at intervals along the height direction of the corrugated pipe.
Furthermore, each row of water passing holes are formed by a plurality of water passing holes which are uniformly distributed on the front part of the peripheral wall of the filter cylinder along the circumferential direction, the water passing holes are arranged from bottom to top, and the top surface of the uppermost row of water passing holes in the rows is flush with the horizontal plane where the central axis 2/3 of the filter cylinder is high.
Furthermore, liquid supplementing pipes are arranged on the second circulating pipe and the fourth circulating pipe, and liquid discharging pipes are arranged on the first circulating pipe and the third circulating pipe which are positioned outside the liquid collecting tank.
Furthermore, the inner wall of the outer cover is connected with the outer wall of the inner cover through a plurality of connecting rods.
Furthermore, the connecting plates are in a fan-shaped ring shape, the arc length of the inner ring of each connecting plate is larger than the width of the first plate body, and the distance between the inner rings of two adjacent connecting plates is equal to the diameter of the flow guide pipe.
Through the technical scheme, the invention has the beneficial effects that:
the absorption tower body can be matched with the plurality of collecting covers to comprehensively treat the waste gas, so that the number of treatment equipment is reduced, the occupied area is reduced, and the cost and the capital investment are reduced.
The absorption tower body of the invention adopts two absorption liquids to spray together, and then the two absorption liquids are circulated in layers, so that a set of waste gas treatment device can comprehensively treat waste gas.
The absorption liquid circulating mechanism can be used for layering and recycling the mixed solvent, and meets the treatment requirements of different waste gas components.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the construction of the collection hood of the present invention;
FIG. 3 is a schematic structural view of the separator of the present invention;
FIG. 4 is a cross-sectional front view of the dispensing section of the present invention;
FIG. 5 is a sectional view taken along line A-A of FIG. 4;
FIG. 6 is a sectional view taken along line B-B of FIG. 4;
FIG. 7 is a cross-sectional left side view of a dispensing portion of the present invention;
fig. 8 is a sectional view taken along line C-C of fig. 2.
The reference numbers in the drawings are as follows: 1 is an absorption tower body, 2 is a collection cover, 3 is a liquid separation part, 4 is a circulation part, 11 is a fan, 12 is a demister, 13 is a liquid distributor, 14 is a redistributor, 15 is a packing layer, 16 is a liquid collecting tank, 21 is an outer cover, 22 is an inner cover, 23 is a partition plate, 24 is an air pipe, 25 is a connecting cylinder, 26 is a connecting plate, 27 is a connecting rod, 31 is a baffle plate, 32 is a liquid guide plate, 33 is a liquid storage ring, 34 is a liquid separation tank, 35 is a stirring paddle, 36 is a right-angle reverser, 37 is a distance sensor, 38 is a motor, 39 is a carrier pipe, 41 is a first circulation pipe, 42 is a second circulation pipe, 43 is a third circulation pipe, 44 is a fourth circulation pipe, 45 is a first chemical pump, 46 is a second chemical pump, 47 is a liquid supplement pipe, 48 is a liquid discharge pipe, 221 is an air vent, 231 is a first plate body, 232 is a second plate body, 233 is a filter cylinder, 234 is a support rod, 311 is a spine, 331 is a spine, 332 is the filter, 333 is ultrasonic generator, 334 is the water hole, 335 is the oil hole, 341 is the sliding frame, 342 is the separation board, 343 is the oil drain pipe, 344 is the bellows, 345 is the support ring, 346 is the separation hole.
Detailed Description
The invention is further described with reference to the following figures and detailed description:
as shown in fig. 1 to 8, a waste gas treatment device in a coal tar processing process comprises an absorption tower body 1, wherein a fan 11 is arranged at the lower part of the left side of the absorption tower body 1, the fan 11 is communicated with an air inlet of the absorption tower body 1, an exhaust pipeline is upwards communicated with the top of the absorption tower body 1, a demister 12 is arranged in the top of the absorption tower body 1, two liquid distributors 13 are arranged below the demister 12, a redistributor 14 is arranged in the middle of the inner wall of the absorption tower body 1, the redistributor 14 is positioned below the two liquid distributors 13, two packing layers 15 are arranged in the absorption tower body 1, the two packing layers 15 are respectively positioned between the lower part of the redistributor 14 and the upper part of the inner end of the air inlet of the absorption tower body 1 and between the liquid distributors 13 and 14, and the bottom end of the absorption tower body 1 is connected with a liquid collection tank 16, the liquid collecting box 16 is a hollow cylinder with an opening at the upper end, and also comprises a collecting cover 2 and an absorption liquid circulating mechanism;
the air intake connection of fan 11 has collection cover 2, it has a plurality ofly to collect cover 2, every collection cover 2 all includes dustcoat 21, inner cover 22 and division board 23, dustcoat 21 is big end down, upper and lower both ends opening has the cavity round platform, and the upper end of dustcoat 21 is connected fan 11 through tuber pipe 24, and the lower extreme of dustcoat 21 is provided with connecting cylinder 25, connecting cylinder 25 is the diameter and the same cylinder of dustcoat 21 lower extreme diameter, upper and lower both ends open-ended, and the upper end of connecting cylinder 25 is connected dustcoat 21 lower extreme, is provided with inner cover 22 in the dustcoat 21, inner cover 22 is the lower extreme and is connecting cylinder 25 lower extreme parallel and level, lower extreme open-ended cavity cone, has the interval between the inner periphery wall of inner cover 22 and the inner periphery wall of dustcoat 21, and the equipartition has bleeder vent 221 on the inner cover 22, annular array has a plurality of even boards 26 between outer periphery wall lower extreme and the inner periphery wall lower extreme of connecting cylinder 25, an air vent is formed between two adjacent connecting plates 26, a partition plate 23 is connected below each air vent, each partition plate 23 comprises a first plate body 231, a second plate body 232 and a flow guide pipe 233, the first plate body 231 and the second plate body 232 are transparent plate bodies made of PE, the first plate body 231 and the second plate body 232 are identical in shape and size and are oppositely arranged, the flow guide pipe 233 along the height direction of the first plate body 231 and the second plate body 232 is arranged between the middle parts of the opposite side surfaces of the first plate body 231 and the second plate body 232, the opposite side surfaces of the first plate body 231 and the second plate body 232 are respectively connected with two sides of the peripheral wall of the flow guide pipe 233, the flow guide pipe 233 is a PE hose with a closed lower end, circular through holes penetrating through the peripheral wall of the flow guide pipe 233 are uniformly distributed on the flow guide pipe 233, a plurality of support rods 234 are uniformly distributed between the opposite side surfaces of the first plate body 231 and the second plate body 232 outside the flow guide pipe 233, the two ends of the support rod 234 are respectively connected with the opposite side surfaces of the first plate body 231 and the second plate body 232, the upper end of the first plate body 231 of each isolation plate 23 is connected with the lower end of the inner cover 22, the upper end of the second plate body 232 is connected with the lower end of the connecting cylinder 25, the upper end of the flow guide pipe 233 is opposite to the vent hole up and down, and a space is reserved between every two adjacent isolation plates 23;
the absorption liquid circulating mechanism comprises a liquid separating part 3 and a circulating part 4, the liquid separating part 3 is positioned in the liquid collecting box 16, the liquid separating part 3 comprises a baffle plate 31, a liquid guide plate 32, a liquid storage ring 33 and a liquid separating groove 34, the baffle plate 31 is a U-arc-shaped plate body positioned in the upper part of the liquid collecting box 16, the periphery of the U-arc-shaped plate body is formed by connecting two ends of the U-arc-shaped edge with two ends of a straight edge, the U-arc-shaped edge of the baffle plate 31 is connected with the upper part of the inner peripheral wall of the liquid collecting box 16, the straight edge of the baffle plate 31 is the rear end of the baffle plate 31, a distance is reserved between the rear end of the baffle plate 31 and the inner side rear wall of the liquid collecting box 16, the space above the baffle plate 31 in the liquid collecting box 16 is a liquid storage space, the liquid guide plate 32 is a vertical rectangular plate body, the upper end of the liquid guide plate 32 is connected with the rear end of the lower surface of the baffle plate 31, the lower end of the liquid guide plate penetrates through the top of the liquid storage ring 33 downwards, the left side and the right side of the liquid guide plate 32 are both connected with the inner peripheral wall of the liquid collecting box 16, an arched cylindrical liquid guide space with openings at the upper end and the lower end is formed between the liquid guide plate 32 and the inner rear wall of the liquid collecting tank 16, the upper end of the liquid guide space is communicated with the liquid storage space, the lower end of the liquid guide space is communicated with a liquid storage ring 33, the liquid storage ring 33 is an annular space which is defined by a filter plate 332, a filter cylinder 331, the lower part of the inner peripheral wall of the liquid collecting tank 16 and the inner bottom surface of the liquid collecting tank 16, the filter cylinder 331 is a cylinder with the outer diameter smaller than the diameter of the inner peripheral wall of the liquid collecting tank 16, the lower end of the filter cylinder 331 is connected with the inner bottom surface of the liquid collecting tank 16, the upper end of the filter cylinder 331 is higher than the lower end of the liquid guide plate 32, a plurality of circular rows of water through holes 334 penetrating through the inner peripheral wall and the outer peripheral wall of the filter cylinder 331 are uniformly distributed at the front part of the peripheral wall of the filter cylinder 331, the filter plate 332 is an annular plate, the inner annular surface of the filter plate 332 is connected with the upper end of the outer peripheral wall of the filter cylinder 331, the outer annular surface of the filter plate 332 is connected with the lower part of the inner peripheral wall of the liquid guide plate 16, notches which are arranged at the rear part of the liquid guide plate 332 and correspond to the liquid guide plate 32 and the liquid guide space, the front part of the filter plate 332 is uniformly provided with a plurality of circular oil passing holes 335 penetrating through the upper and lower surfaces of the filter plate 332, the liquid dividing groove 34 is positioned in the liquid collecting tank 16 between the baffle plate 31 and the liquid storage ring 33, the liquid dividing groove 34 comprises a sliding frame 341 and a separating plate 342, the sliding frame 341 is a tubular body with a cross section of a major arc arch, the outer peripheral wall of the sliding frame 341 is respectively in sliding contact with the inner wall of the liquid collecting tank 16 and the front side surface of the liquid guide plate 32, the sliding frame 341 is internally connected with an integrated separating plate 342, the separating plate 342 is a plate body corresponding to the inner caliber of the sliding frame 341, the separating plate 342 is uniformly provided with separating holes 346 penetrating through the upper and lower surfaces of the separating plate 342, the separating holes 346 are circular through holes, the separating plate 342 is centrally connected with an oil discharging pipe 343 penetrating through the upper surface of the separating plate 342 and flush with the upper end of the sliding frame 341, the lower end of the oil discharging pipe 343 penetrates through the lower surface of the separating plate 342 and is positioned below the separating plate 342, the lower end of the oil discharge pipe 343 is connected with a corrugated pipe 344 made of rubber, and the lower end of the corrugated pipe 344 extends downwards into the filter cylinder 331;
the circulating part 4 comprises a circulating pipe and a chemical pump, the circulating pipe comprises a first circulating pipe 41, a second circulating pipe 42, a third circulating pipe 43 and a fourth circulating pipe 44, the chemical pump comprises a first chemical pump 45 and a second chemical pump 46, the lower end of the corrugated pipe 344 is connected with the first circulating pipe 41, the outer end of the first circulating pipe 41 penetrates through the right end of the peripheral wall of the filter cylinder 331 and the right end of the peripheral wall of the liquid collecting tank 16 to extend out of the liquid collecting tank 16, the outer end of the first circulating pipe 41 is connected with the first chemical pump 45, the outlet of the first chemical pump 45 is connected with one of the two liquid distributors 13 which is positioned below the two liquid distributors 13 through the second circulating pipe 42, the third circulating pipe 43 is arranged in the left part of the filter cylinder 331, the outer end of the third circulating pipe 43 penetrates through the left end of the peripheral wall of the filter cylinder 331 and the left end of the peripheral wall of the liquid collecting tank 16 to extend out of the liquid collecting tank 16, and the outer end of the third circulating pipe 43 is connected with the second chemical pump 46, the outlet of the second chemical pump 46 is connected to the upper liquid distributor 13 of the two liquid distributors 13 via a fourth circulation pipe 44.
The upper surface of the baffle plate 31 is uniformly provided with spikes 311, the spikes 311 are cones with upward tips, the baffle plate 31 and the filter plate 332 are both provided with a distance sensor 37 with a measuring end facing the direction of the sliding frame 341, and the front part of the upper end of the filter cylinder 331 is higher than the rear part of the upper end of the filter cylinder 331.
The middle part in the stock solution space is provided with arranges the stirring rake 35 of spine 311 top in, the shaft of stirring rake 35 is connected motor 38 through the transmission shaft of right angle commutator 36, liquid collection box 16 outer wall rear end is arranged in to motor 38, right angle commutator 36 is installed in carrier tube 39, carrier tube 39 is the square body of both ends connection on the inner wall around liquid collection box 16, and the width of carrier tube 39 is less than 1/2 of liquid collection box 16 internal diameter.
A plurality of ultrasonic generators 333 are arranged on the inner bottom surface of the liquid collecting tank 16 below the filter plate 332 except the liquid guide space at intervals, the outer top surface of the inner end of the third circulating pipe 43 is lower than the center of the multi-row water through holes 334 in the total height direction, and the outer bottom surface of the inner end of the third circulating pipe 43 is higher than the top surfaces of the ultrasonic generators 333.
The separation plate 342 is high in the middle and low in the edgeThe lower surface edge of the separation plate 342 is flush with the lower end of the sliding frame 341, and the separation plate 342 is made of acrylic and has an apparent density of 1.2g/cm3The slide frame 341 is made of acrylic and has an apparent density of 1.2g/cm3The cylindrical body of (1).
A support ring 345 is arranged in the corrugated pipe 344, and the support ring 345 is an annular body connected to the inner wall of the corrugated pipe 344 at intervals along the height direction of the corrugated pipe 344.
Each row of the water through holes 334 is formed by a plurality of water through holes 334 uniformly distributed in the front of the peripheral wall of the filter cartridge 331 along the circumferential direction, the rows of the water through holes 334 are arranged from bottom to top, and the top surface of the uppermost row of the water through holes 334 in the rows of the water through holes 334 is flush with the horizontal plane where the central axis 2/3 of the filter cartridge 331 is located.
The second circulation pipe 42 and the fourth circulation pipe 44 are provided with liquid replenishing pipes 47, and the first circulation pipe 41 and the third circulation pipe 43 outside the liquid collection tank 16 are provided with liquid discharging pipes 48.
The inner wall of the outer cover 21 is connected with the outer wall of the inner cover 22 through a plurality of connecting rods 27, and the number of the connecting rods 27 is multiple.
The connecting plates 26 are in a fan-shaped ring shape, the arc length of the inner ring of each connecting plate 26 is larger than the width of the first plate 231, and the distance between the inner rings of two adjacent connecting plates 26 is equal to the diameter of the flow guide pipe 233.
The right-angle reverser adopts an AT-FH right-angle reverser, and the stirring paddle adopts a turbine type stirring paddle.
When the collecting hood 2 is used, the collecting hood 2 is covered above a waste gas generating place (such as a diffusing pipe of an oil tank, a diffusing pipe of a condensing cooling device, an asphalt forming machine and an industrial naphthalene forming machine), the lower end of the isolation plate 23 is lower than (or close to) the outside of the waste gas generating place, because the guide pipe 233 of the isolation plate 23 is communicated with the space between the outer cover 21 and the inner cover, when the fan 11 is started, suction force is generated between the first plate 231 and the second plate 232 of the isolation plate 23, waste gas at the waste gas generating place is prevented from outwards escaping from the two adjacent isolation plates 23, the workshop environment is ensured, the waste gas enters the lower part of the absorption tower body 1 from the fan 11 and flows upwards, the two liquid distributors 13 at the upper part of the absorption tower body 1 spray absorption liquid, and one of the liquid distributors 13 is liquidThe body distributor 13 sprays saturated salt water, the other liquid distributor 13 sprays tar washing oil to respectively carry out water-soluble H2S, BaP, ammonia, oil-soluble naphthalene dust and asphalt smoke, and the liquid level of the absorption liquid in the liquid collecting box 16 is higher than the stirring paddle 35 and lower than the top surface of the bearing pipe 39.
The two absorption liquids respectively from top to bottom pass through two packing layers 15 and collect the harmful substance in the waste gas contact absorption waste gas that cover 2 was collected, and fall in the header tank 16 of absorption tower body 1 lower extreme together, because the absorption liquid level in the header tank 16 is higher than stirring rake 35, the absorption liquid of baffling board 31 top in the header tank 16 mixes through the stirring rake, the mixed effect of two kinds of absorption liquids can be strengthened to the spine, make two kinds of absorption liquids mix in proportion all the time, make the solid particle that naphthalene dust etc. that the saturated brine washed down condense because of the cooling dissolve in tar wash oil simultaneously, avoid the solid particle that naphthalene dust etc. that the saturated brine washed down condenses because of the cooling to pile up in the header tank 16, reduce the maintenance number of times.
As the chemical pump always conveys the absorption liquid into the liquid distributor 13, the absorption liquid near the inlets of the first circulation pipe 41 and the third circulation pipe 43 is reduced, the reduced absorption liquid is supplemented by the absorption liquid above the baffle plate 31 through the liquid guide space and the liquid storage ring, the mixed absorption liquid descends into the liquid storage ring 33 through the liquid guide space and circularly flows in the liquid storage ring 33, the separation of saturated saline water and tar washing oil is accelerated under the action of ultrasonic waves in the flowing process, the tar washing oil is lighter to float above the saturated saline water, the saturated saline water is positioned at the lower part of the liquid storage ring 33 and flows out through the water through holes 334 in the front part of the liquid storage ring 33, and the tar washing oil floating above the saturated saline water flows out upwards through the oil through holes 335 of the filter plate 332.
Because the apparent densities of the separating plate 342 and the sliding frame 341 are both 1.2g/mL, are more than the density of tar washing oil and less than the density of saturated salt water, the middle part of the separating plate 342 is higher than the edge, therefore, when the tar washing oil flowing upwards floats to the middle of the lower surface of the separation plate 342, the tar washing oil rises to the upper part of the separation plate 342 from the separation holes 346 at the middle of the separation plate 342, for example, the tar washing oil above the separation plate 342 mixed with water will also fall to the edge of the separation plate 342 after deposition, and the oil is dropped below the separation plate 342 through the separation holes 346 at the edge of the separation plate 342 to separate tar washing oil from saturated salt solution, preferably, the diameters of the separation holes, the water passing holes and the oil passing holes are all more than or equal to 1cm, the two separated absorption liquids are respectively pumped by the first chemical pump 45 and the second chemical pump 46 to be circulated or discharged by a liquid discharge pipe to be subjected to related treatment of pollutant removal, and classification circulation or treatment of the two different absorption liquids is not influenced.
The distance sensor can sense the distance of the sliding frame, the proportion of two absorption liquids in the liquid collection box 16 can be determined, if the distance sensed by the distance sensor above the sliding frame is smaller than the distance sensed by the distance sensor below the sliding frame, the tar washing oil is reduced, the saturated saline water is increased, otherwise, the tar washing oil is increased, the saturated saline water is reduced, whether the stirring paddle operates or not needs to be checked, if the stirring paddle does not operate, the stirring can be carried out along with spraying only by starting stirring, the distance sensed by the two distance sensors above and below the sliding frame is recovered to a normal state, if the stirring paddle operates normally, the proportion of the two absorption liquids needs to be adjusted in a liquid drainage or liquid supplementing mode, and the measurement result of the distance sensor can be used as a reference basis for adjusting the proportion of the two absorption liquids, so that the two absorption liquids are kept relatively stable.
The preferred embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various modifications can be made to the technical solution of the present invention within the scope of disclosure without departing from the spirit of the present invention.
Claims (10)
1. The utility model provides a waste gas treatment device in coal tar course of working, includes absorption tower body (1), the left side lower part of absorption tower body (1) is provided with fan (11), the air inlet of fan (11) intercommunication absorption tower body (1), the top of absorption tower body (1) upwards communicate has exhaust duct, installs defroster (12) in the top of absorption tower body (1), defroster (12) below is provided with two liquid distributor (13), and absorption tower body (1) inner wall mid-mounting has redistributor (14), and redistributor (14) are located the below of two liquid distributor (13), the inside of absorption tower body (1) is provided with two packing layers (15), two packing layers (15) are located respectively between redistributor (14) below and the air inlet inner top of absorption tower body (1) inner, Between the liquid distributor (13) and the redistributor (14), the bottom end of the absorption tower body (1) is connected with a liquid collecting tank (16), the liquid collecting tank (16) is a hollow cylinder with an opening at the upper end, and the absorption tower is characterized by further comprising a collecting cover (2) and an absorption liquid circulating mechanism;
the air intake connection of fan (11) has collection cover (2), it has a plurality ofly to collect cover (2), every collect cover (2) and all include dustcoat (21), inner cover (22) and division board (23), dustcoat (21) are big end down, upper and lower both ends opening has the cavity round platform, and fan (11) are connected through tuber pipe (24) to the upper end of dustcoat (21), and the lower extreme of dustcoat (21) is provided with connecting cylinder (25), connecting cylinder (25) are diameter and dustcoat (21) lower extreme diameter unanimous, upper and lower both ends open-ended cylinder, and dustcoat (21) lower extreme is connected to the upper end of connecting cylinder (25), is provided with inner cover (22) in dustcoat (21), inner cover (22) are lower extreme and connecting cylinder (25) lower extreme parallel and level, lower extreme open-ended cavity cone, has the interval between the periphery wall of inner cover (22) and the internal perisporium of dustcoat (21), the inner cover (22) is uniformly provided with air holes (221), a plurality of connecting plates (26) are arranged in an annular array manner between the lower end of the outer peripheral wall of the inner cover (22) and the lower end of the inner peripheral wall of the connecting cylinder (25), air holes are formed between two adjacent connecting plates (26), a partition plate (23) is connected below each air hole, each partition plate (23) comprises a first plate body (231), a second plate body (232) and a guide pipe (233), the first plate body (231) and the second plate body (232) are transparent plate bodies made of PE, the first guide pipe (231) and the second guide pipe (232) are identical in shape and size and are arranged oppositely, the guide pipe (233) along the height direction of the first plate body (231) and the second plate body (232) is arranged between the middle parts of the opposite sides of the first plate body (231) and the second plate body (232), and the opposite sides of the first plate body (231) and the second plate body (232) are respectively connected with the two sides of the peripheral wall (233), the honeycomb duct (233) is a PE hose with a closed lower end, round through holes penetrating through the circumferential wall of the honeycomb duct (233) are uniformly distributed in the honeycomb duct (233), a plurality of support rods (234) are uniformly distributed between opposite side surfaces of a first plate body (231) and a second plate body (232) outside the honeycomb duct (233), two ends of each support rod (234) are respectively connected with the opposite side surfaces of the first plate body (231) and the second plate body (232), the upper end of the first plate body (231) of each partition plate (23) is connected with the lower end of the inner cover (22), the upper end of the second plate body (232) is connected with the lower end of the connecting cylinder (25), the upper end of the honeycomb duct (233) is vertically opposite to the vent hole, and a space is reserved between every two adjacent partition plates (23);
the absorption liquid circulating mechanism comprises a liquid separating part (3) and a circulating part (4), the liquid separating part (3) is positioned in the liquid collecting box (16), the liquid separating part (3) comprises a baffle plate (31), a liquid guide plate (32), a liquid storage ring (33) and a liquid separating groove (34), the baffle plate (31) is a U-arc-shaped plate body positioned in the upper part of the liquid collecting box (16), the periphery of the U-arc-shaped plate body is formed by connecting two ends of the U-arc-shaped edge to two ends of a straight edge, the U-arc-shaped edge of the baffle plate (31) is connected with the upper part of the inner peripheral wall of the liquid collecting box (16), the straight edge of the baffle plate (31) is the rear end of the baffle plate (31), a gap is reserved between the rear end of the baffle plate (31) and the inner side rear wall of the liquid collecting box (16), the space positioned above the baffle plate (31) in the liquid collecting box (16) is a liquid storage space, the liquid guide plate (32) is a vertical rectangular plate body, the upper end of the liquid guide plate (32) is connected with the rear end of the lower surface of the baffle plate (31), the lower end of the filter cylinder (331) penetrates through the top of the liquid storage ring (33) downwards, the left side and the right side of the liquid guide plate (32) are both connected with the inner peripheral wall of the liquid collecting tank (16), an arched cylindrical liquid guide space with openings at the upper end and the lower end is formed between the liquid guide plate (32) and the inner rear wall of the liquid collecting tank (16), the upper end of the liquid guide space is communicated with the liquid storage space, the lower end of the liquid guide space is communicated with the liquid storage ring (33), the liquid storage ring (33) is an annular space which is formed by a filter plate (332), a filter cylinder (331), the lower part of the inner peripheral wall of the liquid collecting tank (16) and the inner bottom surface of the liquid collecting tank (16) in a surrounding mode, the filter cylinder (331) is a cylinder body with the outer diameter smaller than the inner peripheral wall of the liquid collecting tank (16), the lower end of the filter cylinder (331) is connected with the inner bottom surface of the liquid collecting tank (16), the upper end of the filter cylinder (32) is higher than the lower end of the liquid guide plate (32), and the front part of the peripheral wall of the filter cylinder (331) is uniformly distributed with the inner peripheral wall penetrating through the inner peripheral wall and outer peripheral wall of the filter cylinder (331), Circular multirow water holes (334) that cross, the filter (332) is the annular plate, the inner ring surface of the filter (332) is connected with the upper end of the outer peripheral wall of the filter cartridge (331), the outer ring surface is connected with the lower part of the inner peripheral wall of the liquid collecting tank (16), the rear part of the filter (332) is provided with the notch corresponding to the liquid guide plate (32) and the liquid guide space up and down, the front part of the filter (332) is evenly distributed with a plurality of circular oil holes (335) that pass through the upper and lower surfaces of the filter (332), the liquid separating tank (34) is arranged in the liquid collecting tank (16) between the baffle plate (31) and the liquid storage ring (33), the liquid separating tank (34) comprises a sliding frame (341) and a separating plate (342), the sliding frame (341) is a cylinder with a U-arc cross section, the outer peripheral wall of the sliding frame (341) is respectively in sliding contact with the inner wall of the liquid collecting tank (16) and the front side surface of the liquid guide plate (32), the sliding frame (341) is internally connected with the integrated separating plate (342), the oil-gas separation device is characterized in that the separation plate (342) is a plate body which is matched with the inner caliber of the sliding frame (341), separation holes (346) which penetrate through the upper surface and the lower surface of the separation plate (342) are uniformly distributed on the separation plate (342), the separation holes (346) are circular through holes, an oil discharge pipe (343) which penetrates through the upper surface and the lower surface of the separation plate (342) is connected to the center of the separation plate (342), the upper end of the oil discharge pipe (343) penetrates through the upper surface of the separation plate (342) and is flush with the upper end of the sliding frame (341), the lower end of the oil discharge pipe (343) penetrates through the lower surface of the separation plate (342) and is positioned below the separation plate (342), the lower end of the oil discharge pipe (343) is connected with a corrugated pipe (344) made of rubber, and the lower end of the corrugated pipe (344) extends downwards into the filter cylinder (331);
circulation portion (4) are including circulating pipe and chemical industry pump, the circulating pipe includes first circulating pipe (41), second circulating pipe (42), third circulating pipe (43) and fourth circulating pipe (44), the chemical industry pump includes first chemical industry pump (45) and second chemical industry pump (46), bellows (344) lower extreme is connected with first circulating pipe (41), cartridge filter (331) perisporium right-hand member and header (16) perisporium right-hand member are run through to first circulating pipe (41) outer end and are stretched out header tank (16), first circulating pipe (41) outer end is connected with first chemical industry pump (45), the export of first chemical industry pump (45) is connected one liquid distributor (13) that lie in the below in two liquid distributors (13) through second circulating pipe (42), be provided with third circulating pipe (43) in cartridge filter (331) left part, third circulating pipe (43) outer end runs through cartridge filter (331) perisporium left end and header (16) perisporium left end and is stretched out header (16) (liquid distributor (13) (liquid tank (13) perisporium: (3) 16) The outer end of the third circulating pipe (43) is connected with a second chemical pump (46), and the outlet of the second chemical pump (46) is connected with the liquid distributor (13) which is positioned above the two liquid distributors (13) through a fourth circulating pipe (44).
2. The device for treating the waste gas generated in the coal tar processing according to claim 1, wherein the upper surface of the baffle plate (31) is uniformly provided with sharp spines (311), the sharp spines (311) are cones with upward tips, the baffle plate (31) and the filter plate (332) are respectively provided with a distance sensor (37) with a measuring end facing the direction of the sliding frame (341), and the front part of the upper end of the filter cylinder (331) is higher than the rear part of the upper end of the filter cylinder (331).
3. The waste gas treatment device in the coal tar processing process according to claim 2, characterized in that a stirring paddle (35) arranged above the spine (311) is arranged in the middle of the liquid storage space, the shaft of the stirring paddle (35) is connected with a motor (38) through a transmission shaft of a right-angle commutator (36), the motor (38) is arranged at the rear end of the outer wall of the liquid collection tank (16), the right-angle commutator (36) is arranged in a bearing pipe (39), the bearing pipe (39) is a square pipe body with two ends connected to the front inner wall and the rear inner wall of the liquid collection tank (16), and the width of the bearing pipe (39) is less than 1/2 of the inner diameter of the liquid collection tank (16).
4. The device for treating the waste gas generated in the coal tar processing process according to claim 1, wherein a plurality of ultrasonic generators (333) are arranged on the inner bottom surface of the liquid collecting tank (16) below the filter plate (332) except for the liquid guide space at intervals, the outer top surfaces of the inner ends of the third circulating pipes (43) are lower than the center of the total height direction of the rows of water through holes (334), and the outer bottom surfaces of the inner ends of the third circulating pipes (43) are higher than the top surfaces of the ultrasonic generators (333).
5. The waste gas treatment device in the coal tar processing process according to claim 1, wherein the separation plate (342) is a plate body with a high middle part, a low edge and an upward bulge, the edge of the lower surface of the separation plate (342) is flush with the lower end of the sliding frame (341), and the separation plate (342) is made of acrylic and has an apparent density of 1.2g/cm3The sliding frame (341) is made of acrylic and has an apparent density of 1.2g/cm3The cylindrical body of (1).
6. The device for treating the waste gas generated in the coal tar processing according to the claim 1, characterized in that a support ring (345) is arranged in the corrugated pipe (344), and the support ring (345) is a circular ring body connected to the inner wall of the corrugated pipe (344) at intervals along the height direction of the corrugated pipe (344).
7. The device for treating the waste gas generated in the coal tar production process according to claim 1, wherein each row of the water through holes (334) is composed of a plurality of water through holes (334) uniformly distributed in the circumferential direction in the front portion of the circumferential wall of the filter cartridge (331), the plurality of rows of the water through holes (334) are arranged from bottom to top, and the top surface of the uppermost row of the water through holes (334) in the plurality of rows of the water through holes (334) is flush with the horizontal plane at the height of the central axis 2/3 of the filter cartridge (331).
8. The device for treating the waste gas generated in the coal tar processing process according to claim 1, wherein the second circulating pipe (42) and the fourth circulating pipe (44) are respectively provided with a liquid supplementing pipe (47), and the first circulating pipe (41) and the third circulating pipe (43) which are positioned outside the liquid collecting tank (16) are respectively provided with a liquid discharging pipe (48).
9. The waste gas treatment device in the coal tar processing process according to claim 1, characterized in that the inner wall of the outer cover (21) is connected with the outer wall of the inner cover (22) through a plurality of connecting rods (27), and the number of the connecting rods (27) is multiple.
10. The device for treating the waste gas generated in the coal tar processing process according to the claim 1, characterized in that the connecting plates (26) are fan-shaped, the arc length of the inner ring of the connecting plate (26) is larger than the width of the first plate body (231), and the distance between the inner rings of two adjacent connecting plates (26) is equal to the diameter of the draft tube (233).
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| CN120919804A (en) * | 2025-10-13 | 2025-11-11 | 江苏国胶新材料有限公司 | Quick processing apparatus of gluing agent production peculiar smell |
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Address after: 467001 No.21 middle miner Road, Pingdingshan City, Henan Province Patentee after: China Pingmei Shenma Holding Group Co.,Ltd. Patentee after: PINGDINGSHAN TIANAN COAL MINING Co.,Ltd. Patentee after: Shengde Guang Technology Development (Beijing) Co.,Ltd. Patentee after: BLOOMING (BEIJING) TECHNOLOGY CO.,LTD. Patentee after: CHINA University OF MINING AND TECHNOLOGY BEIJING Address before: 467001 No.21 middle miner Road, Pingdingshan City, Henan Province Patentee before: CHINA PINGMEI SHENMA ENERGY CHEMICAL GROUP Co.,Ltd. Patentee before: PINGDINGSHAN TIANAN COAL MINING Co.,Ltd. Patentee before: Shengde Guang Technology Development (Beijing) Co.,Ltd. Patentee before: BLOOMING (BEIJING) TECHNOLOGY CO.,LTD. Patentee before: CHINA University OF MINING AND TECHNOLOGY BEIJING |
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