CN209210840U - A kind of blast furnace injection device of producer gas pulverized coal conveying - Google Patents
A kind of blast furnace injection device of producer gas pulverized coal conveying Download PDFInfo
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- CN209210840U CN209210840U CN201821761523.8U CN201821761523U CN209210840U CN 209210840 U CN209210840 U CN 209210840U CN 201821761523 U CN201821761523 U CN 201821761523U CN 209210840 U CN209210840 U CN 209210840U
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- blowing
- blast furnace
- coal
- valve
- injection
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Abstract
The utility model discloses a kind of blast furnace injection devices of producer gas pulverized coal conveying, belong to technical field of blast furnace coal, and device includes vulcanization plant, making-up air device and distributor, and vulcanization plant includes sulfiding gas pipeline；Making-up air device includes tonifying Qi pipeline, tonifying Qi regulating valve and aeration valve, and the both ends of tonifying Qi pipeline are connected to caisson and blowing supervisor respectively；Distributor includes distributor and blowing branch pipe, and the outlet end for being blown branch pipe is connected to blast furnace respectively.The sulfiding gas pipeline of the utility model introduces sulfiding gas, and blowing supervisor can be entered for coal dust and provides conveying power；Making-up air device prevents the coal dust that producer gas carries in blowing supervisor from conveying unsmooth or even resulting in blockage；The coal dust that producer gas carries is evenly distributed to after each blowing branch pipe and sprays into blast furnace from coal powder lance by distributor, realizes that penetrating air-flow is uniform, combustion zone is stable, guarantees that system is safe and reliable to operation, production cost reduces, carbon emission is reduced.
Description
Technical field
The utility model belongs to technical field of blast furnace coal, and in particular to a kind of blast furnace spray of producer gas pulverized coal conveying
Blowing apparatus.
Background technique
China is to carry out earliest one of the country of coal injection technology.Pulverized coal injection is an effectively energy conservation measure, especially
In the latest 20 years, steel industry competition, in this context, furnace coal spraying technology have been obtained greatly developing and answered
With, coal powder injection facility at the indispensable technology of modern blast furnace.
Current pulverized coal injection in blast furnace mainly uses compressed air or nitrogen as pumped (conveying) medium.Existing main problem is
After nitrogen enters blast furnace, the chemical reaction being not involved in blast furnace not only reduces blast furnace gas quality, also to absorb valuable in blast furnace
Heat resources, inhibit the raising of blast furnace ironmaking efficiency instead.
The main beneficiating ingredient of producer gas is carbon monoxide and hydrogen, and there are also a small amount of methane.Using producer gas
Make the medium of coal injection, compares compressed air or nitrogen, can not only reduce the furnace entering volume of nitrogen, but also advantageously reduce coke
Than reducing carbon emission, improving the utility value of producer gas, obtain good economic benefit and social benefit.
For traditional use compressed air or nitrogen as pulverized coal conveying medium, existing main problem is that hot wind falls in blast furnace
It is not in place etc. to flow back to fire, safety interlocking control.Pulverized coal conveying medium is made using producer gas, it is desirable that transmission process is without coal gas
Leakage, blowing process is without tempering refluence etc..
Utility model content
The purpose of the utility model is to provide a kind of blast furnace injection devices of producer gas pulverized coal conveying, to solve gaseous state
Blast furnace blowing process that fuel is combined with coal dust, coal dust lacks aerodynamic force and is difficult to can smoothly enter into injection tank in the prior art
It is blown process, and enter the fuel gas of blast furnace and coal dust can not uniformly spray into and air-flow is caused unevenly to cause combustion zone unstable
The problem of.
In order to achieve the above object, the technical solution adopted in the utility model are as follows:
A kind of blast furnace injection device of producer gas pulverized coal conveying, including pressurizing device, the caisson sequentially connected
And blowing device, the blowing device include the injection tank being arranged on the blowing supervisor and blowing supervisor being connected to caisson,
It is characterized by also including vulcanization plant, making-up air device and distributor, the vulcanization plant includes being arranged in injection tank
Sulfiding gas pipeline；The making-up air device includes the tonifying Qi regulating valve and aeration valve of tonifying Qi pipeline and the setting of blowdown pipe road, is mended
One end of air pipe is connected to caisson, and the other end is connected to by air compensation device with blowing supervisor；The distributor include with
Several blowing branch pipes are set on the distributor and distributor of blowing supervisor's connection, the outlet end for being blown branch pipe connects with blast furnace respectively
It is logical.
Branch pipe regulating valve, manual ball valve and non-return valve are set gradually on the blowing branch pipe, is blown the tail end setting of branch pipe
Coal powder lance, coal powder lance are arranged at the air port of blast furnace.
It is connected between the injection tank and blowing supervisor by coal injection pipe, coal powder injection valve is set on coal injection pipe, blowing supervisor leans on
Blowing valve is arranged in the side of nearly coal injection pipe.
The air compensation device is set to side of the blowing valve far from coal powder injection valve.
The utility model having the beneficial effect that compared to the prior art
Sulfiding gas pipeline is arranged in injection tank and introduces sulfiding gas for the utility model, and blowing master can be entered for coal dust
Pipe provides conveying power；It is that the coal dust conveying that producer gas carries during blowing in order to prevent is responsible for is unsmooth that making-up air device, which is arranged, then
Even result in blockage；By the distributional effects of distributor, the coal dust that producer gas carries is evenly distributed to each blowing branch pipe
It is interior, and blast furnace is sprayed into respectively from the coal powder lance of blowing branch pipe tail end, realize that the air-flow for spraying into producer gas and coal dust formation is equal
Purpose even, combustion zone is stable guarantees that system is safe and reliable to operation, and final acquisition production cost reduction, carbon emission reduce good
The double benefit of good economy and society.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model；
Appended drawing reference meaning is as follows: 1, injection tank；2, sulfiding gas pipeline；3, tonifying Qi pipeline；4, tonifying Qi regulating valve；5, it mends
Air valve；6, caisson；7, air compensation device；8, blowing supervisor；9, distributor；10, it is blown branch pipe；11, blast furnace；12, branch pipe is adjusted
Valve；13, manual ball valve；14, non-return valve；15, coal powder lance；16, coal injection pipe；17, coal powder injection valve；18, blowing valve；19, pressurizing device.
Specific embodiment
The utility model is described further with reference to the accompanying drawings and detailed description.
As shown in Figure 1, a kind of blast furnace injection device of producer gas pulverized coal conveying, including the pressurizing device sequentially connected
19, caisson 6 and blowing device, the blowing device include on the blowing supervisor 8 and blowing supervisor 8 being connected to caisson
The injection tank 1 of setting, further includes vulcanization plant, making-up air device and distributor, and the vulcanization plant includes being arranged in injection tank 1
On sulfiding gas pipeline 2；The making-up air device includes the tonifying Qi regulating valve 4 being arranged on tonifying Qi pipeline 3 and tonifying Qi pipeline 3 and mends
One end of air valve 5, tonifying Qi pipeline 3 is connected to caisson 6, and the other end is connected to by air compensation device 7 with blowing supervisor 8；Described point
It include that several blowing branch pipes 10 are set on the distributor 9 and distributor 9 being connected to blowing supervisor 8 with device, blowing branch pipe 10
Outlet end is connected to blast furnace 11 respectively.
Branch pipe regulating valve 12, manual ball valve 13 and non-return valve 14 are set gradually on the blowing branch pipe 10, are blown branch pipe 10
Tail end coal powder lance 15 is set, coal powder lance 15 is arranged in the inlet of blast furnace 11.
It is connected between the injection tank 1 and blowing supervisor 8 by coal injection pipe 16, coal powder injection valve 17, spray is set on coal injection pipe 16
It blows supervisor 8 and blowing valve 18 is set close to the side of coal injection pipe 16.
The air compensation device 7 is set to side of the blowing valve 18 far from coal powder injection valve 17.
When operation, first opening pressurizing device 19 is passed through gas in caisson 6, and the valve for opening caisson 6 makes gas
Body is passed through in blowing supervisor 8, and opening the valve on sulfiding gas pipeline 2 after gas in pipe is stablized makes producer gas be passed through injection tank
In 1, opening coal powder injection valve 17 is transported to coal dust in blowing supervisor 8 under the drive of producer gas by coal injection pipe 16, then passes through
Distributor 9 is transported in several blowing branch pipes 10, is opened manual ball valve 13 and is adjusted flow, coal dust by branch pipe regulating valve 12
It is sprayed into blast furnace 11 after non-return valve 14 by coal powder lance 15 under the drive of producer gas, to realize producer gas and coal dust each
The uniform blowing in air port.
During blowing, if opening aeration valve 5 simultaneously there is a situation where conveying unsmooth or line clogging in blowing supervisor 8
Gas flow is controlled by tonifying Qi regulating valve 4, gas is made to enter air compensation device 7, thus to the producer gas in blowing supervisor 8
It is pushed with coal dust, restores the unimpeded of transmission process.
Claims (4)
1. a kind of blast furnace injection device of producer gas pulverized coal conveying, including sequentially connect pressurizing device, caisson and
Blowing device, the blowing device include the injection tank being arranged on the blowing supervisor and blowing supervisor being connected to caisson,
It is characterized in that: further including vulcanization plant, making-up air device and distributor, the vulcanization plant includes being arranged on injection tank (1)
Sulfiding gas pipeline (2)；The making-up air device includes the tonifying Qi regulating valve being arranged on tonifying Qi pipeline (3) and tonifying Qi pipeline (3)
(4) it is connected to aeration valve (5), one end of tonifying Qi pipeline (3) with caisson (6), the other end is led by air compensation device (7) and blowing
Manage (8) connection；The distributor includes that several sprays are arranged on the distributor (9) and distributor (9) being connected to blowing supervisor (8)
It blows branch pipe (10), the outlet end of blowing branch pipe (10) is connected to blast furnace (11) respectively.
2. the blast furnace injection device of producer gas pulverized coal conveying as described in claim 1, it is characterised in that: the blowing branch
Branch pipe regulating valve (12), manual ball valve (13) and non-return valve (14) are set gradually on pipe (10), the tail end of blowing branch pipe (10) is set
It sets coal powder lance (15), coal powder lance (15) is arranged at the air port of blast furnace (11).
3. the blast furnace injection device of producer gas pulverized coal conveying as claimed in claim 1 or 2, it is characterised in that: the spray
It blows and is connected between tank (1) and blowing supervisor (8) by coal injection pipe (16), coal powder injection valve (17) are set on coal injection pipe (16), blowing master
It manages (8) and blowing valve (18) is set close to the side of coal injection pipe (16).
4. the blast furnace injection device of producer gas pulverized coal conveying as claimed in claim 3, it is characterised in that: the air compensation device
(7) it is set to the side of blowing valve (18) far from coal powder injection valve (17).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821761523.8U CN209210840U (en) | 2018-10-29 | 2018-10-29 | A kind of blast furnace injection device of producer gas pulverized coal conveying |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821761523.8U CN209210840U (en) | 2018-10-29 | 2018-10-29 | A kind of blast furnace injection device of producer gas pulverized coal conveying |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209210840U true CN209210840U (en) | 2019-08-06 |
Family
ID=67457314
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821761523.8U Expired - Fee Related CN209210840U (en) | 2018-10-29 | 2018-10-29 | A kind of blast furnace injection device of producer gas pulverized coal conveying |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209210840U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114635000A (en) * | 2022-03-07 | 2022-06-17 | 中冶东方工程技术有限公司 | Blockage clearing device for coal powder distributor and coal injection gun |
| CN116103457A (en) * | 2023-02-07 | 2023-05-12 | 中冶赛迪工程技术股份有限公司 | Stable injection control method of blast furnace coal injection system |
-
2018
- 2018-10-29 CN CN201821761523.8U patent/CN209210840U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114635000A (en) * | 2022-03-07 | 2022-06-17 | 中冶东方工程技术有限公司 | Blockage clearing device for coal powder distributor and coal injection gun |
| CN116103457A (en) * | 2023-02-07 | 2023-05-12 | 中冶赛迪工程技术股份有限公司 | Stable injection control method of blast furnace coal injection system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190806 Termination date: 20201029 |