CN205839048U - Blast furnace long period stablizes coal injection device - Google Patents
Blast furnace long period stablizes coal injection device Download PDFInfo
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- CN205839048U CN205839048U CN201620826769.3U CN201620826769U CN205839048U CN 205839048 U CN205839048 U CN 205839048U CN 201620826769 U CN201620826769 U CN 201620826769U CN 205839048 U CN205839048 U CN 205839048U
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Abstract
Blast furnace long period stablizes coal injection device, including the spraying and blowing organ that at least two groups are in parallel, often group spraying and blowing organ is mainly by coal pulverizer, noodles making machine, Pulverized Coal Bin, winding-up tank, coal output pipe, coal fine filter, secondary air compensating pipe and compressed air bag composition, coal pulverizer outlet is connected with noodles making machine, Pulverized Coal Bin is placed in bottom noodles making machine, Pulverized Coal Bin outlet communicates with winding-up tank, the coal output pipe of winding-up tank outlet arranges two coal fine filters in parallel, one ball valve is set on coal output pipe, compressed air bag is communicated with coal output pipe by secondary air compensating pipe, a normally opened ball valve it is respectively provided with before and after each coal fine filter, secondary air compensating pipe arranges a bypass line, one mutual stylet is set between Pulverized Coal Bin and the coal output pipe of another spraying and blowing organ of one spraying and blowing organ.The injection system of this utility model is perfect existing blast furnace, it is achieved that blast furnace blowing long-period stable operation.
Description
Technical field
This utility model relates to operation of blast furnace stabilization technique field, is specifically related to a kind of blast furnace long period and stablizes coal powder injection dress
Put.
Background technology
Furnace shell made by blast furnace steel plate, builds fireproof brick inner lining in shell.Blast-furnace body be divided into from top to bottom furnace throat, shaft, furnace bosh,
Bosh, cupola well 5 part.Owing to blast furnace technology economic indicator is good, technique is simple, and volume of production is big, and labor productivity is high,
Low power consumption and other advantages, therefore the ferrum of this method production accounts for the overwhelming majority of World Iron total output.Along with the maximization of blast furnace, maintenance
The prolongation in cycle, in tradition coal spraying process, injection system does not affect pulverized coal injection in cannot ensureing a time between overhauls(TBO), need by
Walking perfect, the time between overhauls(TBO) longer to have adapted to big blast furnace, the direct motion steady in a long-term for blast furnace creates conditions.
Utility model content
This utility model provides a kind of blast furnace long period and stablizes coal injection device, to solve the blast furnace inspection that prior art exists
The problem that cycle of repairing is short.
This utility model solves its technical problem and be the technical scheme is that
A kind of blast furnace long period stablizes coal injection device, including the spraying and blowing organ that at least two groups are in parallel, and often group spraying and blowing organ master
To be made up of coal pulverizer, noodles making machine, Pulverized Coal Bin, winding-up tank, coal output pipe, coal fine filter, secondary air compensating pipe and compressed air bag,
Coal pulverizer outlet is connected with noodles making machine, and Pulverized Coal Bin is placed in bottom noodles making machine, and Pulverized Coal Bin outlet communicates with winding-up tank, winding-up tank outlet
Coal output pipe two coal fine filters in parallel are set, coal output pipe arranges a ball valve, compressed air bag passes through secondary air compensating
Pipe communicates with coal output pipe, is respectively provided with a normally opened ball valve before and after each coal fine filter, and secondary air compensating pipe arranges a bypass
Pipeline, arranges a mutual stylet between Pulverized Coal Bin and the coal output pipe of another spraying and blowing organ of a spraying and blowing organ.
The beneficial effects of the utility model are:
1, coal fine filter imports and exports pipeline respectively increases a manual ball valve, and in cleaning filter, during foreign material, switch is interior at ordinary times
Two, side ball valve, when two, inner side, ball valve breaks down, and can close two, outside ball valve and cut off inlet and outlet pressure, change online
Inner side ball valve, thus eliminating the need and affect the situation of the coal powder injection of blast furnace because ball valve for filter damages；
2, secondary mends device pipeline increases bypass pneumatic ball valve, and the electromagnetic valve of original supervisor's operated pneumatic valve is set as electric
Opening, dead electricity is closed, and bypass operated pneumatic valve electromagnetic valve is set as that dead electricity is opened, and must be electrically turn off.So when unexpected electricity occurs
During gas fault, QI invigorating pipeline bypass can be opened, and persistently supplies, it is ensured that coal spraying pipeline persistently supplies, and pipeline pressure is more than blast furnace warm
Wind pressure, prevents blast furnace from burning and robs fault；
3, winding-up tank outlet increase normally opened manually-operated gate, when outside, operated pneumatic valve breaks down, can hand off tank intrinsic pressure
Power media, can realize operated pneumatic valve and change online, and not affect pulverized coal injection；
4, respectively at winding-up tank winding-up pipeline increase fork arm and the valve of two spraying and blowing organs, if one can be realized it is
The powder process of row is broken down, and the most a series of available winding-up tank is toward the fault defeated powder of series powder cabin, it is ensured that event occurs in powder process
The injection system of barrier series can keep normal coal powder injection to blast furnace, thus tries to gain time precious to one to handling failure.
Accompanying drawing explanation
With embodiment, this utility model is further illustrated below in conjunction with the accompanying drawings.
Fig. 1 is structural representation of the present utility model.
1 coal pulverizer in figure, 2 noodles making machines, 3 Pulverized Coal Bin, 4 winding-up tanks, 5 coal output pipes, 6 coal fine filters, 7 normally opened ball valves, 8 two
Secondary blowdown pipe, 9 bypass lines, 10 compressed air bags, 11 mutual stylet, 12 ball valves.
Detailed description of the invention
As it can be seen, a kind of blast furnace long period stablizes coal injection device, including the spraying and blowing organ that at least two groups are in parallel, often organize spray
Blow mechanism mainly by coal pulverizer 1, noodles making machine 2, Pulverized Coal Bin 3, winding-up tank 4, coal output pipe 5, coal fine filter 6, secondary air compensating pipe 8 and
Compressed air bag 10 forms, and coal pulverizer 1 exports and is connected with noodles making machine 2, and Pulverized Coal Bin 3 is placed in bottom noodles making machine 2, and Pulverized Coal Bin 3 exports
Communicating with winding-up tank 4, the coal output pipe 5 of winding-up tank 4 outlet arranges two coal fine filters 6 in parallel, and coal output pipe 5 arranges one
Ball valve 12, compressed air bag 10 is communicated with coal output pipe 5 by secondary air compensating pipe 8, is respectively provided with one before and after each coal fine filter 6
Individual normally opened ball valve 7, secondary air compensating pipe 8 arranges a bypass line 9, the Pulverized Coal Bin 3 of a spraying and blowing organ and another machine of jetting
One mutual stylet 11 is set between the coal output pipe 5 of structure.
The beneficial effects of the utility model are:
1, coal fine filter imports and exports pipeline respectively increases a manual ball valve, and in cleaning filter, during foreign material, switch is interior at ordinary times
Two, side ball valve, when two, inner side, ball valve breaks down, and can close two, outside ball valve and cut off inlet and outlet pressure, change online
Inner side ball valve, thus eliminating the need and affect the situation of the coal powder injection of blast furnace because ball valve for filter damages；
2, secondary mends device pipeline increases bypass pneumatic ball valve, and the electromagnetic valve of original supervisor's operated pneumatic valve is set as electric
Opening, dead electricity is closed, and bypass operated pneumatic valve electromagnetic valve is set as that dead electricity is opened, and must be electrically turn off.So when unexpected electricity occurs
During gas fault, QI invigorating pipeline bypass can be opened, and persistently supplies, it is ensured that coal spraying pipeline persistently supplies, and pipeline pressure is more than blast furnace warm
Wind pressure, prevents blast furnace from burning and robs fault；
3, winding-up tank outlet increase normally opened manually-operated gate, when outside, operated pneumatic valve breaks down, can hand off tank intrinsic pressure
Power media, can realize operated pneumatic valve and change online, and not affect pulverized coal injection；
4, respectively at winding-up tank winding-up pipeline increase fork arm and the valve of two spraying and blowing organs, if one can be realized it is
The powder process of row is broken down, and the most a series of available winding-up tank is toward the fault defeated powder of series powder cabin, it is ensured that event occurs in powder process
The injection system of barrier series can keep normal coal powder injection to blast furnace, thus tries to gain time precious to one to handling failure.
Claims (1)
1. blast furnace long period stablizes a coal injection device, it is characterized in that including the spraying and blowing organ that at least two groups are in parallel, often organizes winding-up
Mechanism is mainly by coal pulverizer, noodles making machine, Pulverized Coal Bin, winding-up tank, coal output pipe, coal fine filter, secondary air compensating pipe and compressed air
Bag composition, coal pulverizer outlet is connected with noodles making machine, and Pulverized Coal Bin is placed in bottom noodles making machine, and Pulverized Coal Bin outlet communicates with winding-up tank, spray
The coal output pipe blowing tank outlet arranges two coal fine filters in parallel, and coal output pipe arranges a ball valve, and compressed air bag passes through
Secondary air compensating pipe communicates with coal output pipe, is respectively provided with a normally opened ball valve before and after each coal fine filter, and secondary air compensating pipe is arranged
One bypass line, arranges a mutual siphunculus between Pulverized Coal Bin and the coal output pipe of another spraying and blowing organ of a spraying and blowing organ
Line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620826769.3U CN205839048U (en) | 2016-08-02 | 2016-08-02 | Blast furnace long period stablizes coal injection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620826769.3U CN205839048U (en) | 2016-08-02 | 2016-08-02 | Blast furnace long period stablizes coal injection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205839048U true CN205839048U (en) | 2016-12-28 |
Family
ID=57618010
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620826769.3U Active CN205839048U (en) | 2016-08-02 | 2016-08-02 | Blast furnace long period stablizes coal injection device |
Country Status (1)
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| CN (1) | CN205839048U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109628671A (en) * | 2018-12-29 | 2019-04-16 | 云南玉溪仙福钢铁（集团）有限公司 | A kind of anti-fracture coal dust recycling stocking system applied to metallurgy |
| CN111500805A (en) * | 2020-05-09 | 2020-08-07 | 中冶华天工程技术有限公司 | Novel coal injection tank for blast furnace |
-
2016
- 2016-08-02 CN CN201620826769.3U patent/CN205839048U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109628671A (en) * | 2018-12-29 | 2019-04-16 | 云南玉溪仙福钢铁（集团）有限公司 | A kind of anti-fracture coal dust recycling stocking system applied to metallurgy |
| CN111500805A (en) * | 2020-05-09 | 2020-08-07 | 中冶华天工程技术有限公司 | Novel coal injection tank for blast furnace |
| CN111500805B (en) * | 2020-05-09 | 2021-11-19 | 中冶华天工程技术有限公司 | Blast furnace coal injection tank |
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| GR01 | Patent grant |