CN113617424B - Coal gangue acidification treatment recycling system - Google Patents
Coal gangue acidification treatment recycling system Download PDFInfo
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- CN113617424B CN113617424B CN202110917677.1A CN202110917677A CN113617424B CN 113617424 B CN113617424 B CN 113617424B CN 202110917677 A CN202110917677 A CN 202110917677A CN 113617424 B CN113617424 B CN 113617424B
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- 239000003245 coal Substances 0.000 title claims abstract description 77
- 230000020477 pH reduction Effects 0.000 title claims abstract description 27
- 238000004064 recycling Methods 0.000 title claims abstract description 11
- 239000000428 dust Substances 0.000 claims abstract description 40
- 239000000696 magnetic material Substances 0.000 claims abstract description 36
- 238000000227 grinding Methods 0.000 claims abstract description 30
- 238000000034 method Methods 0.000 claims abstract description 17
- 239000002253 acid Substances 0.000 claims abstract description 5
- 229910052500 inorganic mineral Inorganic materials 0.000 claims abstract description 5
- 239000011707 mineral Substances 0.000 claims abstract description 5
- 238000012216 screening Methods 0.000 claims abstract description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 28
- 238000012545 processing Methods 0.000 claims description 24
- 239000000463 material Substances 0.000 claims description 21
- 238000003756 stirring Methods 0.000 claims description 20
- 239000004575 stone Substances 0.000 claims description 20
- 230000005389 magnetism Effects 0.000 claims description 10
- 238000007885 magnetic separation Methods 0.000 claims description 7
- 239000010720 hydraulic oil Substances 0.000 claims description 6
- 239000002245 particle Substances 0.000 claims description 6
- 238000003860 storage Methods 0.000 claims description 6
- 125000006850 spacer group Chemical group 0.000 claims description 5
- 239000007921 spray Substances 0.000 claims description 5
- 230000005540 biological transmission Effects 0.000 claims description 3
- 239000007788 liquid Substances 0.000 claims description 3
- 238000004140 cleaning Methods 0.000 abstract 1
- 239000000126 substance Substances 0.000 abstract 1
- 239000000843 powder Substances 0.000 description 9
- 239000002699 waste material Substances 0.000 description 4
- 238000003754 machining Methods 0.000 description 3
- 238000011268 retreatment Methods 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- 239000002910 solid waste Substances 0.000 description 3
- 238000005507 spraying Methods 0.000 description 3
- 238000005406 washing Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000005065 mining Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000012958 reprocessing Methods 0.000 description 2
- 239000011435 rock Substances 0.000 description 2
- 239000010865 sewage Substances 0.000 description 2
- QJZYHAIUNVAGQP-UHFFFAOYSA-N 3-nitrobicyclo[2.2.1]hept-5-ene-2,3-dicarboxylic acid Chemical compound C1C2C=CC1C(C(=O)O)C2(C(O)=O)[N+]([O-])=O QJZYHAIUNVAGQP-UHFFFAOYSA-N 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000004021 humic acid Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 210000003437 trachea Anatomy 0.000 description 1
- 230000005641 tunneling Effects 0.000 description 1
- 239000010878 waste rock Substances 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C2/00—Crushing or disintegrating by gyratory or cone crushers
- B02C2/10—Crushing or disintegrating by gyratory or cone crushers concentrically moved; Bell crushers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/10—Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
- B02C23/08—Separating or sorting of material, associated with crushing or disintegrating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
- B02C23/18—Adding fluid, other than for crushing or disintegrating by fluid energy
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C1/00—Magnetic separation
- B03C1/02—Magnetic separation acting directly on the substance being separated
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B15/00—Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area
- B08B15/04—Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area from a small area, e.g. a tool
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- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Mechanical Engineering (AREA)
- Crushing And Grinding (AREA)
Abstract
The invention belongs to the field of coal gangue treatment, and relates to a coal gangue acidification treatment recycling system which comprises a shell, wherein four outer stand columns are symmetrically fixed below the outer side of the shell, a dust collection treatment device is arranged at the top of the inner side of the shell and used for collecting and treating dust generated in the coal gangue adding and treating process, a magnetic material sorting device is arranged on the inner side of the shell and used for screening out magnetic minerals in the ground coal gangue, a coal gangue grinding device is arranged on the inner side of the shell and used for grinding the coal gangue to a required size. The invention can reprocess the coal gangue generated in the coal mine collection process, separate and screen out the magnetic minerals in the coal gangue, process the residual coal gangue into proper size and then carry out acid cleaning treatment, and simultaneously collect the dust substances generated in the treatment process.
Description
Technical Field
The invention belongs to the field of coal gangue treatment, and particularly relates to a coal gangue acidification treatment recycling system.
Background
Coal associated waste rock is one of the mining solid wastes, and is the solid waste discharged in the process of tunneling, mining and coal washing. The coal gangue-containing solid waste is a mixture of coal gangue washing of a coal washing plant, hand gangue separation in coal production, coal and rock discharged in the driving of a half coal roadway and a rock roadway, white gangue outside a coal system stacked together with the coal gangue and the like. Is a mixture of carbonaceous, argillaceous and sandy shale, and has a low calorific value. Contains 20-30% of carbon and some humic acid. China stores about 1000Mt of coal gangue over the years, and continues to discharge about 100Mt every year, not only accumulating land, but also spontaneously combusting to pollute air or cause fire. And dust waste is easy to generate to pollute the atmospheric environment in the retreatment process of the coal gangue.
Disclosure of Invention
The invention aims to solve the problems in the prior art and provides a coal gangue acidification treatment recycling system which can be used for reprocessing coal gangue and processing the coal gangue into useful raw materials.
The purpose of the invention can be realized by the following technical scheme: the utility model provides a system of recycling is handled in gangue acidizing, includes the casing, casing outside below symmetry is fixed with four outer stands, the inboard top of casing is equipped with dust collection processing apparatus, and dust collection processing apparatus is used for adding the gangue and collects and handle the dust that produces in the processing procedure, the casing inboard is equipped with magnetism material sorting unit, and magnetism material sorting unit is arranged in will grinding the magnetic mineral in the gangue of accomplishing and sieves out, the casing inboard is equipped with the gangue grinder, and the gangue grinder is used for grinding the gangue to the size that needs, the inboard lower part of casing is equipped with material processing apparatus, and material processing apparatus is used for carrying out subsequent processing to the material after the screening.
Preferably, the dust collecting and processing device comprises eight upper air suction pipes fixed on the lower side of the top of the shell, a gas collecting ring is fixedly connected to the lower side of each upper air suction pipe, an inner gas conveying pipe is fixedly connected to the inner side of the gas collecting ring, an inner gas collecting ring is fixedly connected to the inner side of the inner gas conveying pipe, a water tank is fixed to the upper portion of the inner side wall of the shell, a negative pressure chamber is fixed to the lower side of the water tank, a fan blade motor is fixed to the inner side of the negative pressure chamber, a fan blade shaft is arranged at the output end of the fan blade motor, a fan blade is fixed to the tail end of the fan blade shaft, an outer gas conveying pipe is connected between the negative pressure chamber and the gas collecting ring, a filter screen is arranged at the joint of the outer gas conveying pipe and the negative pressure chamber, a water outlet pipe is connected between the water tank and the filter screen, a valve is arranged at the joint of the water outlet pipe, a dust chamber is fixed to the inner side wall of the shell, and a filter screen is connected between the filter screen and the water pipe.
Preferably, magnetic material sorting unit is including fixing the inboard magnetic separation ring of casing, the inboard bottom of casing is fixed with many stands, the stand upper end is fixed with the magnetic hopper, be fixed with many branch spacer bars on the magnetic hopper, it is fixed with the stone hopper to divide the spacer bar upper end, the magnetic hopper bottom is fixed with the magnetic tube, the stone hopper bottom is equipped with the stone tube.
Preferably, gangue grinder is including fixing the feed inlet at casing top center, the inboard slip of casing is equipped with supporting platform, the last main motor that is fixed with of supporting platform, main motor output is equipped with the rotation axis, the rotation axis end is fixed with the grinding gear, be fixed with four spinal branch vaulting poles on the stone hopper, be fixed with down the mill on the bracing piece, supporting platform middle part upside installs the ring bearing, be equipped with the support ring on the ring bearing, the support ring inboard is fixed with the mill, it is fixed with the gear ring on the mill to go up, the gear ring with grind gear engagement, go up the mill with be fixed with a lot of abrasive particles down on the relative two sides of mill, it is fixed with the pan feeding mouth to go up on the mill, the inboard symmetry of casing is fixed with two pneumatic cylinders, every the inboard slip of pneumatic cylinder is equipped with a hydraulic stem, the hydraulic stem with the supporting platform contact, the inboard symmetry of casing is fixed with two hydraulic tank, every the pneumatic cylinder with be connected with a hydraulic pressure pipe between the hydraulic tank.
Preferably, the material processing device is including fixing the acidizing chamber of casing bottom, be fixed with the (mixing) shaft on the acidizing chamber lateral wall, the (mixing) shaft output is equipped with the (mixing) shaft, be fixed with three stirring leaf on the (mixing) shaft, the acidizing chamber with be equipped with sour liquid pipe between the casing, the acidizing chamber with the building stones pipe links to each other, the acidizing chamber bottom is equipped with the discharge gate.
Preferably, the bottom of the shell is fixed with a magnetic material bin, the bottom of the magnetic material bin is provided with a blanking port, the magnetic material bin is connected with a spraying pipe between the shell, the tail end of the spraying pipe is provided with a sprayer, and the magnetic material bin is connected with the magnetic material bin.
When the gangue is needed to be reprocessed, a hydraulic cylinder is started, a hydraulic rod is moved, a support platform is driven to slide, a ring bearing is driven to move up and down, a support ring is driven to move up and down, an upper grinder is driven to move up and down, the distance between the upper grinder and a lower grinder is adjusted, a main motor is started, a rotating shaft is driven to rotate, a grinding gear is driven to rotate, the gear ring is driven to rotate, the upper grinder is driven to rotate, the gangue is poured into from a feed inlet, a grinding space between the upper grinder and the lower grinder is formed by a feed inlet, the gangue is ground by the upper grinder and the lower grinder and grinding particles, the gangue falls down from an outlet below to a required size, and an adjustable grinding gap enables the final machining size of the gangue to be adjusted as required, so that the gangue can adapt to different operation requirements.
And simultaneously, a fan blade motor is started, so that a fan blade shaft rotates to drive the fan blade to rotate and generate negative pressure, the upper air suction pipe absorbs dust generated when the coal gangue falls on the feed inlet, the inner gas collection ring absorbs dust generated when the coal gangue rises in the grinding process, the dust passes through the inner gas pipe, the gas collection ring and the outer gas transmission pipe and reaches the filter screen, the dust is enriched on the filter screen, when a certain degree is reached, a valve is opened, water flows through the water outlet pipe to flush the filter screen, sewage with dust enters the dust chamber through the water falling pipe, the dust generated in the coal gangue retreatment process is collected and treated, the pollution of the dust to the environment is reduced, and the environment friendliness is improved.
And meanwhile, the magnetic separation ring is started, in the falling process of the coal gangue powder, when the coal gangue powder passes through the magnetic separation ring, the magnetic material is pulled by force to be separated from the coal gangue, the coal gangue falls into the stone hopper and enters the stone pipe through the inclined plane, the magnetic material enters the magnetic hopper and enters the magnetic pipe through the inclined plane, the magnetic material is separated from the coal gangue, the utilization efficiency of resources is improved, and the waste is reduced.
Starting the stirring motor simultaneously, make the (mixing) shaft rotatory, it is rotatory to drive the stirring leaf, the gangue powder gets into the acidizing chamber from the building stones pipe, acidizing solution gets into the acidizing chamber from the acidizing fluid pipe, carry out intensive mixing to gangue powder and acidizing solution, make the acidizing abundant, open the discharge gate after reaching certain capacity and discharge the material, the magnetism material gets into in the magnetism feed bin from magnetism feed bin pipe, rivers get into the shower through the shower, spray to the magnetism material in from the shower and carry out moist, stir and the acidizing to the gangue, reduce follow-up work load, the production of the moist dust that reduces of magnetism material.
Compared with the prior art, the coal gangue acidification treatment recycling system has the following advantages:
1. the adjustable grinding gap enables the final machining size of the coal gangue to be adjusted according to needs, so that the coal gangue can adapt to different operation needs.
2. Dust generated in the coal gangue retreatment process is collected and treated, so that the pollution of the dust to the environment is reduced, and the environment friendliness is improved.
3. The magnetic material is separated from the coal gangue, so that the utilization efficiency of resources is improved, and the waste is reduced.
4. The coal gangue is stirred and acidified, the subsequent workload is reduced, and the magnetic material is moistened to reduce the generation of dust.
Drawings
FIG. 1 is a schematic structural diagram of a coal gangue acidification treatment and reuse system.
Fig. 2 isbase:Sub>A sectional view taken alongbase:Sub>A linebase:Sub>A-base:Sub>A in fig. 1.
Fig. 3 is an enlarged view of the structure at B in fig. 2.
Fig. 4 is an enlarged view of the structure at C in fig. 2.
Fig. 5 is an enlarged view of the structure at D in fig. 2.
In the figure, 10, the housing; 11. a blanking port; 12. a magnetic storage bin; 13. a magnetic material pipe; 14. a hydraulic tube; 15. a hydraulic cylinder; 16. a hydraulic lever; 17. a support ring; 18. a main motor; 19. a support platform; 20. a rotating shaft; 21. grinding the gear; 22. a gear ring; 23. a gas collecting ring; 24. an upper suction pipe; 25. an inner gas delivery pipe; 26. a feed inlet; 27. a feeding port; 28. an inner gas collecting ring; 29. an external trachea; 30. an upper grinder; 31. a grinder is arranged; 32. a magnetic selection ring; 33. a support bar; 34. a stone hopper; 35. a spacer bar; 36. a magnetic hopper; 37. dan Liaoguan; 38. an acid liquor pipe; 39. a column; 40. stirring blades; 41. a stirring shaft; 42. a stirring motor; 43. an acidification chamber; 44. a discharge port; 45. a dust chamber; 46. a downpipe; 47. a filter screen; 48. a water outlet pipe; 49. a valve; 50. a water tank; 51. a fan blade; 52. a fan blade shaft; 53. a negative pressure chamber; 54. a fan blade motor; 55. an outer column; 56. a sprayer; 57. a shower pipe; 58. a ring bearing; 59. grinding the particles; 60. and a hydraulic oil tank.
Detailed Description
The following are specific embodiments of the present invention and are further described with reference to the drawings, but the present invention is not limited to these embodiments.
As shown in fig. 1, a system is recycled in coal gangue acidizing, including casing 10, casing 10 outside below symmetry is fixed with four outer stands 55, casing 10 inboard top is equipped with dust collection processing apparatus, dust collection processing apparatus is used for adding the coal gangue and collects and handle the dust that produces in the processing procedure, casing 10 inboard is equipped with magnetism material sorting unit, magnetism material sorting unit is arranged in screening out the magnetic mineral in the coal gangue that will grind the completion, casing 10 inboard is equipped with the coal gangue grinder, the coal gangue grinder is used for grinding the coal gangue to required size, casing 10 inboard lower part is equipped with material processing apparatus, material processing apparatus is used for carrying out subsequent processing to the material after the screening.
As shown in fig. 1, 2 and 3, the dust collecting and processing device includes eight upper air suction pipes 24 fixed on the lower side of the top of the housing 10, a gas collecting ring 23 fixedly connected to the lower side of the upper air suction pipe 24, an inner air delivery pipe 25 fixedly connected to the inner side of the gas collecting ring 23, an inner gas collecting ring 28 fixedly connected to the inner side of the inner air delivery pipe 25, a water tank 50 fixed on the upper portion of the inner side wall of the housing 10, a negative pressure chamber 53 fixed on the lower side of the water tank 50, a fan blade motor 54 fixed on the inner side of the negative pressure chamber 53, a fan blade shaft 52 fixed on the output end of the fan blade motor 54, a fan blade 51 fixed on the end of the fan blade shaft 52, an outer air delivery pipe 29 connected between the negative pressure chamber 53 and the gas collecting ring 23, a filter screen 47 arranged at the connection between the outer air delivery pipe 29 and the negative pressure chamber 53, a water outlet pipe 48 connected between the water tank 50 and the filter screen 47, a valve 49 arranged at the connection between the water tank 50 and the water outlet pipe 48, a dust chamber 45 fixed on the inner side wall of the housing 10 below the negative pressure chamber 53, and a filter screen 47 connected between the filter screen 47.
As shown in fig. 1, 2 and 4, the magnetic material sorting device includes a magnetic separation ring 32 fixed inside the casing 10, a plurality of columns 39 are fixed at the bottom inside the casing 10, a magnetic hopper 36 is fixed at the upper end of each column 39, a plurality of separation rods 35 are fixed on each magnetic hopper 36, a stone hopper 34 is fixed at the upper end of each separation rod 35, a magnetic material pipe 13 is fixed at the bottom of each magnetic hopper 36, and a stone pipe 37 is arranged at the bottom of each stone hopper 34.
As shown in fig. 1, 2 and 4, the coal gangue grinding device includes a feed port 26 fixed at the top center of a housing 10, a support platform 19 is slidably disposed inside the housing 10, a main motor 18 is fixed on the support platform 19, a rotating shaft 20 is disposed at an output end of the main motor 18, a grinding gear 21 is fixed at a tail end of the rotating shaft 20, four support rods 33 are fixed on a stone hopper 34, a lower grinder 31 is fixed on the support rods 33, a ring bearing 58 is mounted on an upper side of a middle portion of the support platform 19, a support ring 17 is disposed on the ring bearing 58, an upper grinder 30 is fixed on an inner side of the support ring 17, a gear ring 22 is fixed on the upper grinder 30, the gear ring 22 is engaged with the grinding gear 21, a plurality of grinding particles 59 are fixed on two opposite surfaces of the upper grinder 30 and the lower grinder 31, a feed port 27 is fixed on the upper grinder 30, two hydraulic cylinders 15 are symmetrically fixed on an inner side of the housing 10, a hydraulic rod 16 is slidably disposed inside each hydraulic cylinder 15, the hydraulic rod 16 is in contact with the support platform 19, two hydraulic oil tanks 60 are symmetrically fixed on an inner side of the housing 10, and a hydraulic pipe 14 is connected between each hydraulic oil tank 15 and the hydraulic oil tank 60.
As shown in fig. 1, 2 and 5, the material processing apparatus includes an acidification chamber 43 fixed at the bottom of the housing 10, a stirring shaft 41 is fixed on the outer side wall of the acidification chamber 43, a stirring shaft 41 is provided at the output end of the stirring shaft 41, three stirring blades 40 are fixed on the stirring shaft 41, an acid liquid pipe 38 is provided between the acidification chamber 43 and the housing 10, the acidification chamber 43 is connected with the stone pipe 37, and a discharge port 44 is provided at the bottom of the acidification chamber 43.
As shown in fig. 1, 2 and 5, a magnetic material bin 12 is fixed at the bottom of the shell 10, a blanking port 11 is arranged at the bottom of the magnetic material bin 12, a spray pipe 57 is connected between the magnetic material bin 12 and the shell 10, a sprayer 56 is arranged at the tail end of the spray pipe 57, and the magnetic material bin 12 is connected with the magnetic material pipe 13.
When the coal gangue needs to be reprocessed, the hydraulic cylinder 15 is started, the hydraulic rod 16 is made to move, the supporting platform 19 is driven to slide, the ring bearing 58 is made to move up and down, the supporting ring 17 is driven to move up and down, the upper grinder 30 is made to move up and down, the distance between the upper grinder 30 and the lower grinder 31 is adjusted, the main motor 18 is started, the rotating shaft 20 is made to rotate, the grinding gear 21 is driven to rotate, the gear ring 22 is made to rotate, the upper grinder 30 is driven to rotate, the coal gangue is poured from the feeding hole 26 and enters the grinding space between the upper grinder 30 and the lower grinder 31 through the feeding hole 27, the coal gangue falls down from the outlet below through the grinding effect of the upper grinder 30, the lower grinder 31 and the grinding particles 59 after being ground to the required size, and the adjustable grinding gap enables the final machining size of the coal gangue to be adjusted as required, so that the coal gangue can adapt to different operation requirements.
Meanwhile, the fan blade motor 54 is started, so that the fan blade shaft 52 rotates to drive the fan blades 51 to rotate to generate negative pressure, the upper air suction pipe 24 absorbs dust generated when coal gangue falls on the feed inlet 26, the inner gas collecting ring 28 absorbs dust generated when the coal gangue rises in the grinding process, the dust passes through the inner gas conveying pipe 25, the gas collecting ring 23 and the outer gas conveying pipe 29 to reach the filter screen 47, the dust is enriched on the filter screen 47, when a certain degree is reached, the valve 49 is opened, water flows through the water outlet pipe 48 to flush the filter screen 47, sewage with dust enters the dust chamber 45 through the water falling pipe 46, the dust generated in the coal gangue reprocessing process is collected and processed, the pollution of the dust to the environment is reduced, and the environmental friendliness is improved.
Meanwhile, the magnetic separation ring 32 is started, in the falling process of the coal gangue powder, when the coal gangue powder passes through the magnetic separation ring 32, magnetic materials in the coal gangue powder are dragged by force to be separated from the coal gangue, the coal gangue falls into the stone hopper 34 and enters the stone tube 37 through the inclined surface, the magnetic materials enter the magnetic hopper 36 and enter the magnetic tube 13 through the inclined surface, the magnetic materials are separated from the coal gangue, the utilization efficiency of resources is improved, and waste is reduced.
And meanwhile, the stirring motor 42 is started, so that the stirring shaft 41 rotates to drive the stirring blade 40 to rotate, the coal gangue powder enters the acidification chamber 43 from the stone pipe 37, the acidification solution enters the acidification chamber 43 from the acid liquor pipe 38, the coal gangue powder and the acidification solution are fully stirred to ensure full acidification, the discharge hole 44 is opened to discharge the materials after a certain capacity is reached, the magnetic materials enter the magnetic material bin 12 from the magnetic material pipe 13, water flows into the sprayer 56 through the spraying pipe 57, the magnetic materials are sprayed from the sprayer 56 to be wetted, the coal gangue is stirred and acidified, the subsequent workload is reduced, and the generation of dust is reduced due to wetting of the magnetic materials.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (4)
1. A coal gangue acidification treatment recycling system comprises a shell (10), and is characterized in that four outer upright columns (55) are symmetrically fixed below the outer side of the shell (10), a dust collecting and processing device is arranged at the top of the inner side of the shell (10) and used for collecting and processing dust generated in the coal gangue adding and processing process, a magnetic material sorting device is arranged on the inner side of the shell (10) and used for screening out magnetic minerals in the ground coal gangue, a coal gangue grinding device is arranged on the inner side of the shell (10) and used for grinding the coal gangue to a required size, a material processing device is arranged at the lower part of the inner side of the shell (10) and used for carrying out subsequent processing on the screened material; the dust collecting and processing device comprises eight upper air suction pipes (24) fixed on the lower side of the top of the shell (10), a gas collecting ring (23) is fixedly connected with the lower side of the upper air suction pipe (24), the inner side of the gas collecting ring (23) is fixedly connected with an inner gas pipe (25), the inner side of the inner gas transmission pipe (25) is fixedly connected with an inner gas collecting ring (28), a water tank (50) is fixed on the upper part of the inner side wall of the shell (10), a negative pressure chamber (53) is fixed on the lower side of the water tank (50), a fan blade motor (54) is fixed on the inner side of the negative pressure chamber (53), the output end of the fan blade motor (54) is provided with a fan blade shaft (52), the tail end of the fan blade shaft (52) is fixed with a fan blade (51), an outer air delivery pipe (29) is connected between the negative pressure chamber (53) and the air collecting ring (23), a filter screen (47) is arranged at the joint of the outer air transmission pipe (29) and the negative pressure chamber (53), a water outlet pipe (48) is connected between the water tank (50) and the filter screen (47), a valve (49) is arranged at the joint of the water tank (50) and the water outlet pipe (48), a dust chamber (45) is fixed on the inner side wall of the shell (10) below the negative pressure chamber (53), a filter screen (47) is connected between the water outlet pipe (48) and the downpipe (46); magnetic material sorting unit is including fixing magnetic separation ring (32) of casing (10) inboard, casing (10) inboard bottom is fixed with many stands (39), stand (39) upper end is fixed with magnetic hopper (36), be fixed with many spacer bars (35) on magnetic hopper (36), spacer bar (35) upper end is fixed with building stones fill (34), magnetic hopper (36) bottom is fixed with magnetism material pipe (13), stone hopper (34) bottom is equipped with Dan Liaoguan (37).
2. The coal gangue acidification treatment recycling system according to claim 1, characterized in that: the coal gangue grinding device comprises a feed inlet (26) fixed at the center of the top of the shell (10), a support platform (19) is arranged on the inner side of the shell (10) in a sliding manner, a main motor (18) is fixed on the support platform (19), a rotating shaft (20) is arranged at the output end of the main motor (18), a grinding gear (21) is fixed at the tail end of the rotating shaft (20), four support rods (33) are fixed on the stone hopper (34), a lower grinder (31) is fixed on the support rods (33), a ring bearing (58) is installed on the upper side of the middle part of the support platform (19), a support ring (17) is arranged on the ring bearing (58), an upper grinder (30) is fixed on the inner side of the support ring (17), a gear ring (22) is fixed on the upper grinder (30), the gear ring (22) and the grinding gear (21) are meshed, a plurality of grinding particles (59) are fixed on two opposite surfaces of the upper grinder (30) and the lower grinder (31), a feed inlet (27) is fixed on the upper grinder (30), two hydraulic cylinders (15) are symmetrically fixed on the inner side of the shell (10), and each hydraulic cylinder (15) is in contact with a hydraulic rod (16), two hydraulic oil tanks (60) are symmetrically fixed on the inner side of the shell (10), and a hydraulic pipe (14) is connected between each hydraulic cylinder (15) and the hydraulic oil tank (60).
3. The coal gangue acidification treatment and recycling system according to claim 2, characterized in that: the material processing device comprises a acidification chamber (43) fixed at the bottom of the shell (10), wherein a stirring shaft (41) is fixed on the outer side wall of the acidification chamber (43), the output end of the stirring shaft (41) is provided with a stirring shaft (41), three stirring blades (40) are fixed on the stirring shaft (41), an acid liquid pipe (38) is arranged between the acidification chamber (43) and the shell (10), the acidification chamber (43) is connected with Dan Liaoguan (37), and a discharge hole (44) is formed in the bottom of the acidification chamber (43).
4. The coal gangue acidification treatment recycling system according to claim 3, characterized in that: the magnetic material storage device is characterized in that a magnetic material storage bin (12) is fixed at the bottom of the shell (10), a blanking port (11) is arranged at the bottom of the magnetic material storage bin (12), a spray pipe (57) is connected between the magnetic material storage bin (12) and the shell (10), a sprayer (56) is arranged at the tail end of the spray pipe (57), and the magnetic material storage bin (12) is connected with the magnetic material pipe (13).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110917677.1A CN113617424B (en) | 2021-08-11 | 2021-08-11 | Coal gangue acidification treatment recycling system |
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| CN202110917677.1A CN113617424B (en) | 2021-08-11 | 2021-08-11 | Coal gangue acidification treatment recycling system |
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| CN113617424B true CN113617424B (en) | 2023-01-17 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2222566Y (en) * | 1995-02-22 | 1996-03-20 | 本溪钢铁公司 | Magnetic material screening machine |
| BRPI0400129B1 (en) * | 2004-01-26 | 2016-01-26 | Ct De Tecnologia Mineral Cetem | Willemite concentration process by reverse flotation of carbonated denim |
| CN101705131B (en) * | 2009-11-19 | 2012-09-05 | 李功民 | Raw coal upgrading device and method with combination of drying and dry separation |
| CN101913632B (en) * | 2010-08-30 | 2013-08-28 | 昆明理工大学 | Method for extracting aluminum oxide, monox and ferric oxide from gangue combustion ashes |
| CN102515279B (en) * | 2011-12-12 | 2014-04-02 | 昆明理工大学 | Comprehensive extraction method of ferro-silico-aluminum in gangue |
| CN204747050U (en) * | 2015-05-13 | 2015-11-11 | 贵州省盘县红腾开发投资有限公司 | Gangue acidification reaction kiln |
| CN205182919U (en) * | 2015-12-04 | 2016-04-27 | 霍山县忠福铸造有限责任公司 | Novel gangue crusher |
| CN207254490U (en) * | 2017-07-27 | 2018-04-20 | 武汉中理环保科技有限公司 | A kind of gangue processing system |
| CN207857526U (en) * | 2017-12-24 | 2018-09-14 | 石狮市鸿辉环保建材有限公司 | A kind of gangue acidification reaction kiln |
| CN212263512U (en) * | 2020-07-23 | 2021-01-01 | 上海砼力人工砂装备有限公司 | Movable box type environment-friendly sand making line |
| AU2020103445A4 (en) * | 2020-11-26 | 2021-02-25 | Inner Mongolia Risheng Recycling Resource Co. Ltd. | A Process to Extract Silica and Alumina Compounds in Coal Gangue Separately for Syntheses of a Series of Zeolite Products |
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