CN202297627U - Test device of burning of pulverized coal for blast furnace injection - Google Patents
Test device of burning of pulverized coal for blast furnace injection Download PDFInfo
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- CN202297627U CN202297627U CN2011203722675U CN201120372267U CN202297627U CN 202297627 U CN202297627 U CN 202297627U CN 2011203722675 U CN2011203722675 U CN 2011203722675U CN 201120372267 U CN201120372267 U CN 201120372267U CN 202297627 U CN202297627 U CN 202297627U
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Abstract
The utility model discloses a test device of burning of pulverized coal for blast furnace injection, which realizes the purpose that the burning performance of pulverized coal for blast furnace injection is simply and conveniently tested on site. The test device of burning of pulverized coal for blast furnace injection is characterized in that a double-hole oxygen-coal spray gun (12) is arranged at a hot air inlet (16) of a pulverized coal burning furnace (5), and the pulverized coal burning furnace (5) is communicated with a hot air furnace (4) through a hot air pipeline (15); a hot air input pipe (14) is arranged between the input port of the hot air furnace (4) and the output port of a heat exchanger (3), and an air blast input pipe (13) is connected onto the input port of the heat exchanger (3); one input hole of the double-hole oxygen-coal spray gun (12) is communicated with an oxygen pipeline (11), and another input hole of the double-hole oxygen-coal spray gun (12) is communicated with the output port of a mixer (9); and the input port of the mixer (9) is respectively connected with a nitrogen pipeline (6) and a pulverized coal input pipeline (10). The test device realizes test for the burning performance of pulverized coal on site.
Description
Technical field
The utility model relates to a kind of corrosion chamber, particularly the device tested of a kind of combustionproperty of pulverized coal injection in blast furnace.
Background technology
Injection coal can reach the effect that reduces coke ratio, energy efficient, minimizing pollution, reduces cost as the part substitute of coke in blast furnace ironmaking process, become the present steel industry energy conservation and reduced discharging, practice thrift one of effective means of cost.Scientific research and production practice show; The restriction injecting coal quantity further improves has four factors: rate of combustion, cupola well hot state, the coal gas stream resistance of motion and the coal-to-coke replacement of coal dust before the air port; Wherein the rate of combustion before the air port is the principal element of limiting to injecting coal quantity at present; Therefore; Improving the rate of combustion of coal dust before the air port is to improve the important topic of winding-up amount, and the researchist has adopted multiple technologies to improve the combustionproperty of coal dust, as increasing oxygen enrichment percentage, improve hot blast temperature, change coal powder size and in coal dust, adding ignition dope etc.The coal that the blast furnace blowing incendivity is good, can make the coal dust that sprays into blast furnace can be in limited room and time gasification as much as possible, the coal dust that does not reach gasification on a small quantity also because of reactivity by force with blast furnace gas in CO
2And H
2The reaction and gasify.In addition, the coal that incendivity is good also can grind more slightly, promptly-ratio of 0.074mm level is few, and this provides condition for reducing coal-grinding energy consumption and expense.The on-the-spot urgent need a kind ofly simple and conveniently carried out the device that incendivity is tested to pulverized coal injection in blast furnace.
Summary of the invention
The utility model provides a kind of pulverized coal injection in blast furnace corrosion chamber, has solved the simple and convenient problem of testing of the incendivity to pulverized coal injection in blast furnace of on-the-spot urgent need.
The utility model overcomes the above problems through following scheme:
A kind of pulverized coal injection in blast furnace corrosion chamber comprises coal dust furnace, hotblast stove and coal dust pot, is provided with diplopore oxygen coal spray gun at the hot-wind inlet place of coal dust furnace; Coal dust furnace is communicated with through hot air duct with hotblast stove; Between the delivery port of the input aperture of hotblast stove and heat exchanger, be provided with the warm air input tube, on the input aperture of heat exchanger, be connected with the air blast input tube, an input hole of diplopore oxygen coal spray gun is communicated with oxygen channel; Another input hole of diplopore oxygen coal spray gun is communicated with the delivery port of mixing tank; The input aperture of mixing tank is connected with nitrogen pipeline and coal dust intake line respectively, and the coal dust intake line is communicated with coal dust pot, and the top of coal dust furnace is connected with the first coal ash collecting device through pipeline; The first coal ash collecting device links together through the pipeline and the second coal ash collecting device; The pipeline that is communicated with between the first coal ash collecting device and the second coal ash collecting device is provided with second and gets grey sampling point, is provided with first in the bottom of coal dust furnace and gets grey sampling point
Between the delivery port of the second coal ash collecting device and exhaust emission tube, be provided with gas analysis apparatus.
The utility model has made things convenient for the detection to the combustionproperty of coal dust, calculates coal combustion rate accurately, thus for the rational proportion of pulverized coal injection in blast furnace provides reference frame, guarantee blast furnace production safe, efficiently carry out.
Description of drawings
Fig. 1 is the structural representation of the utility model.
Specific embodiment
A kind of pulverized coal injection in blast furnace corrosion chamber; Comprise coal dust furnace 5, hotblast stove 4 and coal dust pot 7; Be provided with diplopore oxygen coal spray gun 12 at hot-wind inlet 16 places of coal dust furnace 5, coal dust furnace 5 is communicated with through hot air duct 15 with hotblast stove 4, between the delivery port of the input aperture of hotblast stove 4 and heat exchanger 3, is provided with warm air input tube 14; On the input aperture of heat exchanger 3, be connected with air blast input tube 13; An input hole of diplopore oxygen coal spray gun 12 is communicated with oxygen channel 11, and another input hole of diplopore oxygen coal spray gun 12 is communicated with the delivery port of mixing tank 9, and the input aperture of mixing tank 9 is connected with nitrogen pipeline 6 and coal dust intake line 10 respectively; Coal dust intake line 10 is communicated with coal dust pot 7; The top of coal dust furnace 5 is connected with the first coal ash collecting device, 1, the first coal ash collecting device 1 through pipeline and links together through the pipeline and the second coal ash collecting device 2, and the pipeline that is communicated with between the first coal ash collecting device 1 and the second coal ash collecting device 2 is provided with second and gets grey sampling point 19; Be provided with first in the bottom of coal dust furnace 5 and get grey sampling point 18
Between the delivery port of the second coal ash collecting device 2 and exhaust emission tube 17, be provided with gas analysis apparatus 8.
This device real simulation the injection system of actual blast furnace, hot-air system, can reflect well that coal dust from jetting to the incendiary whole process, helps to carry out the research of pulverized coal injection in blast furnace stove internal combustion state.This device is provided with a plurality of points for measuring temperature; Sampling point, and the gas sampling point is arranged, and can control effectively to temperature in the stove; Thereby can calculate the rate of combustion of coal dust accurately; Completion is carried out effective Comparative Study to the mensuration of difference winding-up coal sample rate of combustion to it, thereby foundation is provided for the choose reasonable of blast furnace blowing coal.
Claims (2)
1. pulverized coal injection in blast furnace corrosion chamber; Comprise coal dust furnace (5), hotblast stove (4) and coal dust pot (7); It is characterized in that; Hot-wind inlet (16) in coal dust furnace (5) locates to be provided with diplopore oxygen coal spray gun (12); Coal dust furnace (5) is communicated with through hot air duct (15) with hotblast stove (4), between the delivery port of the input aperture of hotblast stove (4) and heat exchanger (3), is provided with warm air input tube (14), on the input aperture of heat exchanger (3), is connected with air blast input tube (13); An input hole of diplopore oxygen coal spray gun (12) is communicated with oxygen channel (11); Another input hole of diplopore oxygen coal spray gun (12) is communicated with the delivery port of mixing tank (9), and the input aperture of mixing tank (9) is connected with nitrogen pipeline (6) and coal dust intake line (10) respectively, and coal dust intake line (10) is communicated with coal dust pot (7); The top of coal dust furnace (5) is connected with the first coal ash collecting device (1) through pipeline; The first coal ash collecting device (1) links together through the pipeline and the second coal ash collecting device (2), and the pipeline that is communicated with between the first coal ash collecting device (1) and the second coal ash collecting device (2) is provided with second and gets grey sampling point (19), is provided with first in the bottom of coal dust furnace (5) and gets grey sampling point (18).
2. a kind of pulverized coal injection in blast furnace corrosion chamber according to claim 1 is characterized in that, between the delivery port of the second coal ash collecting device (2) and exhaust emission tube (17), is provided with gas analysis apparatus (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203722675U CN202297627U (en) | 2011-10-08 | 2011-10-08 | Test device of burning of pulverized coal for blast furnace injection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203722675U CN202297627U (en) | 2011-10-08 | 2011-10-08 | Test device of burning of pulverized coal for blast furnace injection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202297627U true CN202297627U (en) | 2012-07-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203722675U Expired - Fee Related CN202297627U (en) | 2011-10-08 | 2011-10-08 | Test device of burning of pulverized coal for blast furnace injection |
Country Status (1)
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| CN (1) | CN202297627U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102539621A (en) * | 2012-01-10 | 2012-07-04 | 河北联合大学 | Method and equipment for detecting burning rate of pulverized coal |
| CN103571989A (en) * | 2013-10-31 | 2014-02-12 | 北京科技大学 | Ultra-high temperature pulverized coal combustion experiment device |
| CN106546695A (en) * | 2016-10-17 | 2017-03-29 | 沈阳建筑大学 | Dry dust collection method tests coal combustion rate device and method |
| CN116518405A (en) * | 2023-07-03 | 2023-08-01 | 山西潞安环保能源开发股份有限公司 | Pulverized coal injection combustion device and method capable of automatically adding and mixing additives |
-
2011
- 2011-10-08 CN CN2011203722675U patent/CN202297627U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102539621A (en) * | 2012-01-10 | 2012-07-04 | 河北联合大学 | Method and equipment for detecting burning rate of pulverized coal |
| CN103571989A (en) * | 2013-10-31 | 2014-02-12 | 北京科技大学 | Ultra-high temperature pulverized coal combustion experiment device |
| CN103571989B (en) * | 2013-10-31 | 2015-01-28 | 北京科技大学 | Ultra-high temperature pulverized coal combustion experiment device |
| CN106546695A (en) * | 2016-10-17 | 2017-03-29 | 沈阳建筑大学 | Dry dust collection method tests coal combustion rate device and method |
| CN116518405A (en) * | 2023-07-03 | 2023-08-01 | 山西潞安环保能源开发股份有限公司 | Pulverized coal injection combustion device and method capable of automatically adding and mixing additives |
| CN116518405B (en) * | 2023-07-03 | 2023-11-07 | 山西潞安环保能源开发股份有限公司 | Pulverized coal injection combustion device and method capable of automatically adding and mixing additives |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120704 Termination date: 20151008 |
|
| EXPY | Termination of patent right or utility model |