CN201078698Y - Industry furnace coal dust firing system apparatus - Google Patents
Industry furnace coal dust firing system apparatus Download PDFInfo
- Publication number
- CN201078698Y CN201078698Y CNU2007200916117U CN200720091611U CN201078698Y CN 201078698 Y CN201078698 Y CN 201078698Y CN U2007200916117 U CNU2007200916117 U CN U2007200916117U CN 200720091611 U CN200720091611 U CN 200720091611U CN 201078698 Y CN201078698 Y CN 201078698Y
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- CN
- China
- Prior art keywords
- coal
- coal dust
- grinding
- burning
- industrial stoves
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 239000002817 coal dust Substances 0.000 title abstract description 40
- 238000010304 firing Methods 0.000 title description 9
- 239000003245 coal Substances 0.000 claims abstract description 53
- 238000000227 grinding Methods 0.000 claims abstract description 29
- 239000002893 slag Substances 0.000 claims abstract description 8
- 238000007599 discharging Methods 0.000 claims abstract description 4
- 238000002485 combustion reaction Methods 0.000 claims description 41
- 239000000843 powder Substances 0.000 claims description 23
- 238000010410 dusting Methods 0.000 claims description 12
- 230000008676 import Effects 0.000 claims description 4
- 239000011229 interlayer Substances 0.000 claims description 2
- 238000005507 spraying Methods 0.000 abstract description 9
- 238000004519 manufacturing process Methods 0.000 abstract description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 4
- 239000000428 dust Substances 0.000 abstract description 3
- 239000007788 liquid Substances 0.000 abstract description 3
- 230000032258 transport Effects 0.000 abstract 1
- 239000000047 product Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 239000007921 spray Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 229920000742 Cotton Polymers 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 238000000137 annealing Methods 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 239000003818 cinder Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 239000003546 flue gas Substances 0.000 description 1
- 238000005242 forging Methods 0.000 description 1
- 239000002828 fuel tank Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 238000004382 potting Methods 0.000 description 1
- 238000010298 pulverizing process Methods 0.000 description 1
- 230000002269 spontaneous effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000005496 tempering Methods 0.000 description 1
Images
Abstract
The utility model discloses an industrial kiln coal dust burning system device, which comprises a coal dust burning device and a kiln communicated with the fire outlet of the coal dust burning device as well as a coal grinding feeding device. The coal grinding feeding device comprises a raw coal transporting device and a coal dust spraying device; a hopper is arranged at the lower part of the discharge end of the raw coal transporting device, the outlet of the hopper and the inlet point of the coal grinding dust spraying device; the outlet point of the coal spraying device is connected with the inlet of the coal dust burning device through the coal dust transporting pipeline. The coal dust burning device comprises a burning chamber; the top of the burning chamber is provided with a swirler and the bottom of the burning chamber is provided with a slag water pool. The structure of the utility model grinds the raw coal into coal dust and transports into the coal dust burning device for burning, the whole production process is continuous, automatic and the coal dust won't block, the feeding coal dust in the burning chamber is even and burns stably, and the production and product quality are guaranteed. After burning, the dust in the coal dust falls in the slag water pool in liquid and become small grains fall in water facilitating for discharging slag.
Description
Technical field
The utility model relates to a kind of Industrial Stoves pulverized coal combustion system device.
Background technology
At present, the Industrial Stoves that utilize the coal dust firing heat supply are when producing, be earlier lump coal to be worn into coal dust more than 120 orders with abrasive dust equipment such as ball mill, Raymond mills, then the good coal dust packing storage of mill, again coal dust is transported in the coal bunker in use, by machine supplying powder coal dust is sent in the burner and burnt.This production technology is in the operation of reality, because the moisture of coal dust is lower, temperature is higher, and surface area is big and radiating condition is poor, and coal dust can cause spontaneous combustion because of oxidizing temperature raises in storage; In addition, pour at coal dust and be easy to take place fluffy stifled phenomenon in the coal bunker in the feeder process of flowing, the lighter causes powder-feeding amount to reduce, combustion instability, and circuit fire phenomenon can take place in weight person, influences ordinary production and product quality.In addition, the combustion system of existing coal dust generally is to adopt straight spray firing method, be about to coal dust and all spray into kiln by burner, coal dust is directly burning in kiln, this combustion system in use also exists very big drawback, its reason is that the ash content in the coal dust all enters burner hearth with flame, wherein a part of ash content is deposited in the surface of heated product in the stove, reduced heat transfer coefficient and heating efficiency, severe patient can influence product quality, and some ash content is deposited in furnace bottom or is bonded in and forms lime-ash on the furnace wall, remove that these lime-ash are promptly taken a lot of work and time-consuming, in addition, some floating ash enters atmosphere with flue gas, causes atmosphere pollution.
The utility model content
The purpose of this utility model provides the Industrial Stoves pulverized coal combustion system device that a kind of coal-grinding operation and coal dust firing operation can be carried out automatically simultaneously.
For achieving the above object, the utility model adopts following technical scheme: Industrial Stoves pulverized coal combustion system device, comprise coal powder burner and the kiln that is communicated with the coal powder burner crater, comprise that also coal-grinding is to the powder device, coal-grinding comprises raw coal conveying device and coal-grinding dusting device to the powder device, below the discharge end of raw coal conveying device, be provided with hopper, the outlet of hopper links to each other with the charging aperture of coal-grinding dusting device, and the discharging opening of coal-grinding dusting device is connected with the import of coal powder burner by power transportation pipe.
Described coal powder burner comprises the combustion chamber, and top of combustion chamber is equipped with cyclone, and the bottom, combustion chamber is provided with the disintegrating slag pond.
On sidewall of combustion chamber, be provided with the annular passage interlayer, have air inlet on the annular passage outer wall, on the wall between annular passage and the combustion chamber, have the tangent line air outlet.
Air inlet on the annular passage has two air inlets arranging up and down, and two air inlets are respectively by a valve and an air volume distributor UNICOM, and the air inlet of air volume distributor is communicated with blower fan.
Also be communicated with secondary air channel in outlet of coal-grinding dusting device and power transportation pipe interface position, the other end of secondary air channel is installed on the outer wall of described annular passage, and secondary air channel communicates with annular passage.
Be provided with feed mechanism in the described coal-grinding dusting device.
The utility model is provided with coal-grinding machine supplying powder structure, the raw coal limit can be worn into the coal dust limit and flow to the coal powder burner burning, make production continuous, automation of Industrial Stoves from raw coal to the coal dust firing whole process of production, saved the intermediate steps that stores coal dust, and coal flows all the time in whole process, so in the hopper fluffy stifled phenomenon can not take place, and powder-feeding amount is even in the combustion chamber simultaneously, flameholding is produced and product quality has also obtained guarantee.Behind the coal dust firing, the ash content in the coal dust is in a liquid state and falls into the disintegrating slag pond, and splits into fine granularity rapidly and sink in the water, is convenient to deslagging, has prevented permanent accumulation of ash content and forms the bulk lime-ash and be difficult to discharge.Annular passage can make burning indoor oxygen abundance, and the tangent line air outlet can promote coal dust to scatter more fully in the combustion process of whereabouts, mixes with air, and coal dust is fully burnt; In addition, the cold wind in the annular passage has obtained preheating, and wherein a part of hot blast has entered power transportation pipe by secondary air channel, has not only increased defeated coal wind-force, can play the effect of oven dry, preheating coal dust simultaneously, more helps coal dust firing.
The utility model is simple in structure, ash-retention efficiency is high, labour intensity is low, and after coal dust burns in the combustion chamber, only has flame to spray into from crater in the kiln, the surface cleaning of heated product, and the heat transfer efficiency height, the quality of production is good.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the structural representation of coal powder burner in the utility model;
Fig. 3 is the structural representation of torch oil gun.
The specific embodiment
Fig. 1, Industrial Stoves pulverized coal combustion system device shown in Figure 2, comprise that coal-grinding is to powder device, coal powder burner 12 and the kiln 14 that is communicated with coal powder burner crater 15, coal-grinding comprises raw coal belt conveyor 1 and coal-grinding and powder-spraying machine 4 to the powder device, below the discharge end of raw coal belt conveyor 1, be provided with hopper 2, the outlet of hopper 2 links to each other with the charging aperture of coal-grinding and powder-spraying machine 4, the discharging opening of coal-grinding and powder-spraying machine 4 is connected with the import of coal powder burner 12 by power transportation pipe 10, has quantitative feed mechanism 3 in the coal-grinding and powder-spraying machine 4.
Described coal powder burner 12 comprises the combustion chamber, top of combustion chamber is equipped with cyclone 11, have lighting-up tuyere 13 on the sidewall of combustion chamber, the bottom, combustion chamber is provided with base 16, be provided with the disintegrating slag pond in the base 16, also have slag-drip opening 17 on the base 16, on sidewall of combustion chamber, be provided with annular passage 22, on the wall between annular passage 22 and the combustion chamber, have tangent line air outlet 23, have two air inlets-tertiary air import 24 and four wind inlets 25 of arranging up and down on annular passage 22 outer walls, two air inlets are respectively by valve 9,8 and one air volume distributor, 7 UNICOMs, the air inlet of air volume distributor 7 is connected with blower fan 6.
Also be communicated with secondary air channel 5 in coal-grinding and powder-spraying machine 4 outlets and power transportation pipe 10 interface positions, the other end of secondary air channel 5 is installed on the outer wall of annular passage 22, communicates with annular passage 22.
The utility model is to utilize the torch oil gun igniting, as shown in Figure 3, torch oil gun mainly is made of oil gun shower nozzle 21, valve 20, oil pump 19 and fuel tank 18, this sparking mode is simple, cost is low, and it is easy to use, do not need to be equipped with separately complex structure, expensive plasma ignition device, very economical and practical.
The course of work of above-mentioned Industrial Stoves pulverized coal combustion system device is as follows, raw coal is sent in the hopper 2 by belt conveyor 1, send into pulverizing in the coal-grinding and powder-spraying machine 4 through quantitative feed mechanism 3, produce the coal dust about 120 orders therein and form the primary air mixture with air, add the hot blast that secondary air channel 5 is sent into, the coal dust after the preheating is sent in the cyclone 11 through power transportation pipe 10.During igniting, start earlier oil pump 19, open valve 20, with cotton yarn point oil combustion gun shower nozzle 21, in the fire hole 13 of the 21 insertion coal powder burners 12 of the oil gun shower nozzle after catching fire, the wind coal mixtures that cyclone 11 is sent into run into behind the naked light be fire burns.Start blower fan 6 then, open tertiary air valve 9 on the air volume distributor 7 and four air valves 8, three, four wind tangentially enter the combustion chamber through annular passage 22, make coal dust firing more abundant.The thermal-flame that produces during coal dust firing enters in the Industrial Stoves 14 through crater 15, and lime-ash is in a liquid state and enters the disintegrating slag pond, and melt cinder is manually discharged from slag-drip opening 17 after cooling.
The utility model whole system device can make equipment move automatically after being equipped with necessary instrumentation and electrical equipment interlocking.This system and device wind coal amount control is simple and reliable, and igniting is easy, and black furnace igniting about a minute gets final product smooth combustion in a few minutes, and it burns fully, and combustion rate reaches more than 99%, and retention efficiency reaches 85% ~ 90%, and energy-saving effect is obvious.The Industrial Stoves in fields such as the various annealing furnaces that industries such as its application surface covering machinery, chemical industry, cement, metallurgy, traffic, forging, potting are used, tempering furnace, forge furnace, heating furnace, roaster, pulverized-coal fired boiler.
Claims (8)
1. Industrial Stoves pulverized coal combustion system device, comprise coal powder burner and the kiln that is communicated with the coal powder burner crater, it is characterized in that: comprise that also coal-grinding is to the powder device, coal-grinding comprises raw coal conveying device and coal-grinding dusting device to the powder device, below the discharge end of raw coal conveying device, be provided with hopper, the outlet of hopper links to each other with the charging aperture of coal-grinding dusting device, and the discharging opening of coal-grinding dusting device is connected with the import of coal powder burner by power transportation pipe.
2. Industrial Stoves pulverized coal combustion system device according to claim 1, it is characterized in that: described coal powder burner comprises the combustion chamber, and top of combustion chamber is equipped with cyclone, the bottom, combustion chamber is provided with the disintegrating slag pond.
3. Industrial Stoves pulverized coal combustion system device according to claim 2 is characterized in that: be provided with the annular passage interlayer on sidewall of combustion chamber, have air inlet on the annular passage outer wall, have the tangent line air outlet on the wall between annular passage and the combustion chamber.
4. Industrial Stoves pulverized coal combustion system device according to claim 3, it is characterized in that: the air inlet on the annular passage has two air inlets arranging up and down, two air inlets are respectively by a valve and an air volume distributor UNICOM, and the air inlet of air volume distributor is communicated with blower fan.
5. according to claim 1 or 2 or 3 described Industrial Stoves pulverized coal combustion system devices, it is characterized in that: also be communicated with the secondary air channel that the other end communicates with the wind-force source in outlet of coal-grinding dusting device and power transportation pipe interface position.
6. Industrial Stoves pulverized coal combustion system device according to claim 5 is characterized in that: be provided with feed mechanism in the described coal-grinding dusting device.
7. Industrial Stoves pulverized coal combustion system device according to claim 4, it is characterized in that: also be communicated with secondary air channel in outlet of coal-grinding dusting device and power transportation pipe interface position, the other end of secondary air channel is installed on the outer wall of described annular passage, and secondary air channel communicates with annular passage.
8. Industrial Stoves pulverized coal combustion system device according to claim 7 is characterized in that: be provided with feed mechanism in the described coal-grinding dusting device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200916117U CN201078698Y (en) | 2007-08-24 | 2007-08-24 | Industry furnace coal dust firing system apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200916117U CN201078698Y (en) | 2007-08-24 | 2007-08-24 | Industry furnace coal dust firing system apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201078698Y true CN201078698Y (en) | 2008-06-25 |
Family
ID=39570763
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200916117U Expired - Fee Related CN201078698Y (en) | 2007-08-24 | 2007-08-24 | Industry furnace coal dust firing system apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201078698Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101825276A (en) * | 2010-04-26 | 2010-09-08 | 中国科学院广州能源研究所 | Energy-saving environment-friendly liquid slag removal type coal-fired heating system |
| CN106322364A (en) * | 2015-07-03 | 2017-01-11 | 邹人养 | Grate-fired furnace and kiln mixed combustion system |
| CN110207146A (en) * | 2019-06-05 | 2019-09-06 | 嘉兴瑛蔓贸易有限公司 | A kind of high-precision Industrial Boiler Temperature-controlled appliance |
-
2007
- 2007-08-24 CN CNU2007200916117U patent/CN201078698Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101825276A (en) * | 2010-04-26 | 2010-09-08 | 中国科学院广州能源研究所 | Energy-saving environment-friendly liquid slag removal type coal-fired heating system |
| CN106322364A (en) * | 2015-07-03 | 2017-01-11 | 邹人养 | Grate-fired furnace and kiln mixed combustion system |
| CN106322364B (en) * | 2015-07-03 | 2019-03-08 | 邹人养 | A kind of layer of burner, kiln are mixed and burned system |
| CN110207146A (en) * | 2019-06-05 | 2019-09-06 | 嘉兴瑛蔓贸易有限公司 | A kind of high-precision Industrial Boiler Temperature-controlled appliance |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080625 |