CN109628671A - A kind of anti-fracture coal dust recycling stocking system applied to metallurgy - Google Patents
A kind of anti-fracture coal dust recycling stocking system applied to metallurgy Download PDFInfo
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- CN109628671A CN109628671A CN201811640530.7A CN201811640530A CN109628671A CN 109628671 A CN109628671 A CN 109628671A CN 201811640530 A CN201811640530 A CN 201811640530A CN 109628671 A CN109628671 A CN 109628671A
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- Prior art keywords
- pipeline
- coal dust
- powder cabin
- cone pump
- grinding
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B5/00—Making pig-iron in the blast furnace
- C21B5/001—Injecting additional fuel or reducing agents
- C21B5/003—Injection of pulverulent coal
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Blast Furnaces (AREA)
Abstract
The present invention relates to metallurgical emergency disposal technical fields, it include coal powder injection storehouse more particularly to being a kind of applied to metallurgical anti-fracture coal dust recycling stocking system, main grinding pipeline and auxiliary grinding pipeline, main grinding pipeline and auxiliary grinding pipeline include grinder, receive powder cabin and cone pump, grinder is by coal grinding at coal dust, it is kept in by pipeline to powder cabin is received, it receives powder cabin and temporary coal dust is delivered to by cone pump by pipeline, pass through pipeline to coal powder injection storehouse under the drive of cone pump, wherein the cone pump of main grinding pipeline is connected to by seamless pipe with the receipts powder cabin of auxiliary grinding pipeline.Solving existing main grinding pipeline needs time-based maintenance to safeguard, without the coal dust of enough qualifications, there are problems that the risk that blast furnace fracture stops production.
Description
Technical field
The present invention relates to metallurgical emergency disposal technical fields, and in particular to is a kind of anti-fracture coal dust applied to metallurgy time
Receive stocking system.
Background technique
It needs to provide enough thermal energy to entire production using to blast-furnace roasting in steel production, in order to ensure that blast furnace is suitable
Row, efficiently uses each equipment performance, replaces full coke to burn by using coal dust, reduces the production cost of entire link.
It being currently used for being delivered to the pulverized coal grinding pipeline in pulverized coal injection storehouse, mostly a plurality of pipeline conveys parallel, with
Using the passage of time, the grinding quality of each item grinding pipeline is had differences, and grinding quality is good, is not easy to plug coal spraying jet and is
Main grinding pipeline, grinding quality is poor, exists and grinds pipeline supplemented by blocking coal spraying jet risk, and coal dust conveying is completed in cooperation,
Main grinding pipeline needs time-based maintenance to safeguard in practical applications, and without the coal dust of enough qualifications, there are the halt productions of blast furnace fracture
Risk.
Summary of the invention
The present invention is directed to the pulverized coal grinding pipeline for being currently used for being delivered to pulverized coal injection storehouse, and mostly a plurality of pipeline is parallel
Conveying, with the passage for using the time, the grinding quality of each item grinding pipeline is had differences, and grinding quality is good, is not easy to plug
Pipeline is ground based on coal spraying jet, grinding quality is poor, exists and grinds pipeline supplemented by blocking coal spraying jet risk, cooperation is completed
Coal dust conveying, main grinding pipeline needs time-based maintenance to safeguard in practical applications, and without the coal dust of enough qualifications, there are blast furnaces
The problem of risk that fracture stops production, provides a kind of anti-fracture coal dust recycling stocking system applied to metallurgy.
The present invention solves above-mentioned technical problem, the technical solution adopted is that, a kind of anti-fracture coal dust applied to metallurgy time
Receiving stocking system includes coal powder injection storehouse, main grinding pipeline and auxiliary grinding pipeline, and main grinding pipeline and auxiliary grinding pipeline are equal
Include grinder, receive powder cabin and cone pump, grinder at coal dust, carries out coal grinding temporarily by pipeline to powder cabin is received
It deposits, receives powder cabin by pipeline and temporary coal dust is delivered to cone pump, pass through pipeline to coal powder injection under the drive of cone pump
Storehouse, wherein the cone pump of main grinding pipeline is connected to by seamless pipe with the receipts powder cabin of auxiliary grinding pipeline.
The purpose designed in this way is, by the way that the cone pump of main grinding pipeline is passed through seamless pipe and auxiliary grinding pipeline
Receipts powder cabin connection, thus to it is main grinding pipeline maintenance before can by it is a part of it is main grinding pipeline output qualified coal dust
Be temporarily stored into the receipts powder cabin of auxiliary grinding pipeline, in maintenance, can in the receipts powder cabin in main grinding pipeline the coal that store
Powder is used as supplement, the risk of fracture when maintenance is greatly reduced after being exhausted.
Moreover the coal dust of the grinder output of a part of main grinding pipeline can be also delivered in routine use auxiliary
It grinds and cooperates conveying in the receipts powder cabin of pipeline, to retain the conveying function of auxiliary grinding pipeline, mitigate whole delivery end
Pressure.
Meanwhile when main grinding pipeline occurs urgent abnormal, the coal dust of production can still be conveyed by auxiliary grinding
Line is conveyed, and entire processing procedure production needs are met, because of fracture risk caused by abnormal when being greatly reduced production.
Solves the pulverized coal grinding pipeline for being currently used for being delivered to pulverized coal injection storehouse, mostly a plurality of pipeline is defeated parallel
It send, with the passage for using the time, the grinding quality of each item grinding pipeline is had differences, and grinding quality is good, is not easy to plug spray
Pipeline is ground based on coal mouth, grinding quality is poor, exists and grinds pipeline supplemented by blocking coal spraying jet risk, coal is completed in cooperation
Powder conveying, main grinding pipeline needs time-based maintenance to safeguard in practical applications, and without the coal dust of enough qualifications, it is disconnected that there are blast furnaces
The problem of expecting the risk to stop production.
Further, main grinding pipeline includes the first grinder, the first receipts powder cabin and the first cone pump, auxiliary grinding conveying
Line includes that the second grinder, the second receipts powder cabin and the second cone pump, the first cone pump receive powder cabin by the first seamless pipe and second
It is connected to, the first compressed air hose is connected on the first seamless pipe, and the first seamless pipe and the first compressed air hose junction are arranged
There is the first air compensation device, the compressed air that the first air compensation device is imported by the first compressed air hose leads the coal dust in the first cone pump
Enter in the second receipts powder cabin.
Optionally, it is additionally provided with the first pneumatic operated valve on the first seamless pipe, the first positioning is provided on the first compressed air hose
Ball valve.
Optionally, auxiliary grinding pipeline further includes third grinder, third receipts powder cabin and third cone pump, main grinding conveying
Line further includes the 4th cone pump, and the 4th cone pump is received powder cabin with third by the second seamless pipe and is connected to, connects on the second seamless pipe
There is the second compressed air hose, and the second seamless pipe and the second compressed air hose junction are provided with the second air compensation device, the second tonifying Qi
Coal dust in 4th cone pump is imported third and received in powder cabin by the compressed air that device is imported by the second compressed air hose.
Optionally, it is additionally provided with the second pneumatic operated valve on the second seamless pipe, the second positioning is provided on the second compressed air hose
Ball valve.
Further, the first seamless pipe be DN80, the first compressed air hose be DN25, the second seamless pipe be DN100, second
Compressed air hose is DN25.
Beneficial effects of the present invention include at least following one；
1, by the way that the cone pump of main grinding pipeline to be connected to by seamless pipe with the receipts powder cabin of auxiliary grinding pipeline, thus right
The qualified coal dust of a part of main grinding pipeline output can be temporarily stored into auxiliary grinding pipeline before main grinding pipeline maintenance
Receive powder cabin in, maintenance when, can it is main grinding pipeline in receipts powder cabin in store coal powder consumption after as supplement,
The risk of fracture when maintenance is greatly reduced.
2, also the coal dust of the grinder output of a part of main grinding pipeline can be delivered to auxiliary grind in routine use
It grinds and cooperates conveying in the receipts powder cabin of pipeline, to retain the conveying function of auxiliary grinding pipeline, mitigate the pressure of whole delivery end
Power.
3, when main grinding pipeline occurs urgent abnormal, still can by the coal dust of production by auxiliary grinding pipeline into
Row conveying meets entire processing procedure production needs, because of fracture risk caused by abnormal when being greatly reduced production.
4, the pulverized coal grinding pipeline for being currently used for being delivered to pulverized coal injection storehouse is solved, mostly a plurality of pipeline is defeated parallel
It send, with the passage for using the time, the grinding quality of each item grinding pipeline is had differences, and grinding quality is good, is not easy to plug spray
Pipeline is ground based on coal mouth, grinding quality is poor, exists and grinds pipeline supplemented by blocking coal spraying jet risk, coal is completed in cooperation
Powder conveying, main grinding pipeline needs time-based maintenance to safeguard in practical applications, and without the coal dust of enough qualifications, it is disconnected that there are blast furnaces
The problem of expecting the risk to stop production.
Detailed description of the invention
Fig. 1 is a kind of anti-fracture coal dust recycling stocking system structural schematic diagram applied to metallurgy；
In the figure, it is marked as 1 being coal powder injection storehouse, 2 being the second grinder, 3 be the first grinder, 4 be third grinder, 5 being the second receipts
Powder cabin, 6 for first receipts powder cabin, 7 be third receive powder cabin, 8 be the second cone pump, 9 be the first cone pump, 10 be the 4th cone pump,
11 it is third cone pump, 12 be the first pneumatic operated valve, 13 be the first positioning ball valve, 14 be the first air compensation device, 15 is the second positioning ball
Valve, 16 be the second pneumatic operated valve, 17 be the second air compensation device, 18 be the first seamless pipe, 19 be the first compressed air hose, 20 be the second nothing
Slit-tube, 21 are the second compressed air hose.
Specific embodiment
It is clear in order to enable the objectives, technical solutions, and advantages of the present invention to be more clear, below in conjunction with attached drawing and implementation
The present invention will be described in further detail for example.It should be appreciated that specific embodiment described herein is only used to explain this hair
It is bright, it is not intended to limit the present invention protection content.
Embodiment 1
As shown in Figure 1, as shown in Figure 1, a kind of anti-fracture coal dust recycling stocking system applied to metallurgy includes coal powder injection storehouse 1, master
Pipeline and auxiliary grinding pipeline are ground, main grinding pipeline and auxiliary grinding pipeline include grinder, receive powder cabin and storehouse
Formula pump, grinder at coal dust, are kept in coal grinding by pipeline to powder cabin is received, and receiving powder cabin will be temporary by pipeline
Coal dust is delivered to cone pump, by pipeline to coal powder injection storehouse 1 under the drive of cone pump, wherein the storehouse formula of main grinding pipeline
Pump is connected to by seamless pipe with the receipts powder cabin of auxiliary grinding pipeline.
In use, the cone pump of main grinding pipeline is connected to by seamless pipe with the receipts powder cabin of auxiliary grinding pipeline, from
And it is defeated the qualified coal dust of a part of main grinding pipeline output can be temporarily stored into auxiliary grinding before to main grinding pipeline maintenance
In the receipts powder cabin of line sending, maintenance when, can it is main grinding pipeline in receipts powder cabin in store coal powder consumption after make
For supplement, the risk of fracture when maintenance is greatly reduced.It also can be by the grinding of a part of main grinding pipeline in routine use
The coal dust of machine output, which is delivered in the receipts powder cabin of auxiliary grinding pipeline, cooperates conveying, to retain the conveying function of auxiliary grinding pipeline
Can, mitigate the pressure of whole delivery end.When main grinding pipeline occurs urgent abnormal, the coal dust of production can still be passed through
Auxiliary grinding pipeline is conveyed, and entire processing procedure production needs are met, because of fracture risk caused by abnormal when being greatly reduced production.
Solves the pulverized coal grinding pipeline for being currently used for being delivered to pulverized coal injection storehouse, mostly a plurality of pipeline conveys parallel, with making
It is had differences with the grinding quality of the passage of time, each item grinding pipeline, grinding quality is good, is not easy to plug based on coal spraying jet
Pipeline is ground, grinding quality is poor, exists and grinds pipeline supplemented by blocking coal spraying jet risk, and coal dust conveying is completed in cooperation,
Main grinding pipeline needs time-based maintenance to safeguard in practical application, without the coal dust of enough qualifications, stops production there are blast furnace fracture
The problem of risk.
Embodiment 2
Based on embodiment 1, main grinding pipeline includes that the first grinder 3, first receives powder cabin 6 and the first cone pump 9, and auxiliary grinding is defeated
Line sending includes that the second grinder 2, second receives powder cabin 5 and the second cone pump 8, and the first cone pump 9 passes through the first seamless pipe 18 and the
Two, which receive powder cabin 5, is connected to, and the first compressed air hose 19 is connected on the first seamless pipe 18, and the first seamless pipe 18 and the first compression are empty
19 junction of tracheae is provided with the first air compensation device 14, and the first air compensation device 14 passes through the compressed air that the first compressed air hose 19 imports
Coal dust in first cone pump 9 is imported second to receive in powder cabin 5.
In use, the coal dust that the grinding of the first grinder generates, a part are delivered in the first receipts powder cabin and keep in, another part
Pass through pipeline to the first cone pump, under the power that the first compressed air hose conveying compressed air provides, the first air compensation device
Coal dust is delivered in the second receipts powder cabin by the first seamless pipe and is kept in, or imports second from the second receipts powder cabin by pipeline
Cone pump, then transfer to coal powder injection storehouse and used for pulverized coal injection mouth.
Embodiment 3
Based on embodiment 2, it is additionally provided with the first pneumatic operated valve 12 on the first seamless pipe 18, is provided on the first compressed air hose 19
One positioning ball valve 13.
Embodiment 4
Based on embodiment 2, auxiliary grinding pipeline further includes that third grinder 4, third receipts powder cabin 7 and third cone pump 11, master grind
Mill pipeline further includes the 4th cone pump 10, and the 4th cone pump 10 is received powder cabin 7 with third by the second seamless pipe 20 and is connected to, and second
The second compressed air hose 21 is connected on seamless pipe 20, and the second seamless pipe 20 is provided with 21 junction of the second compressed air hose
Second air compensation device 17, the second air compensation device 17 will be in the 4th cone pumps 10 by the compressed air that the second compressed air hose 21 imports
Coal dust imports third and receives in powder cabin 7.
In the present embodiment, provides and be made of the second grinder and its conveying circuit and third grinder and its conveying circuit
Auxiliary grinding pipeline, from the first grinder grinding generate coal dust, a part be delivered in the first receipts powder cabin keep in, another portion
Divide through pipeline to the first cone pump and the 4th cone pump, then transfers to the second receipts powder cabin and third receipts powder cabin respectively.
Embodiment 5
Based on embodiment 4, it is additionally provided with the second pneumatic operated valve 16 on the second seamless pipe 20, is provided on the second compressed air hose 20
Two positioning ball valves 15.
Embodiment 6
It is DN80 based on 5 first seamless pipe 18 of embodiment, the first compressed air hose 19 is DN25, and the second seamless pipe 20 is DN100,
Second compressed air hose 21 is DN25.
Claims (6)
1. a kind of anti-fracture coal dust applied to metallurgy recycles stocking system, including coal powder injection storehouse (1), main grinding pipeline and auxiliary grind
Pipeline is ground, the main grinding pipeline and auxiliary grinding pipeline include grinder, receive powder cabin and cone pump, the grinding
Machine at coal dust, is kept in coal grinding by pipeline to powder cabin is received, and is received powder cabin and is conveyed temporary coal dust by pipeline
To cone pump, pass through pipeline to coal powder injection storehouse (1) under the drive of cone pump, it is characterised in that: the main grinding pipeline
Cone pump by seamless pipe with it is auxiliary grind pipeline receipts powder cabin be connected to.
2. a kind of anti-fracture coal dust applied to metallurgy according to claim 1 recycles stocking system, it is characterised in that: institute
Stating main grinding pipeline includes the first grinder (3), the first receipts powder cabin (6) and the first cone pump (9), the auxiliary grinding pipeline
Powder cabin (5) and the second cone pump (8) are received including the second grinder (2), second, first cone pump (9) is seamless by first
Pipe (18) is received powder cabin (5) with second and is connected to, and is connected with the first compressed air hose (19) on first seamless pipe (18), and first
Seamless pipe (18) and the first compressed air hose (19) junction are provided with the first air compensation device (14), and first air compensation device (14) is logical
Coal dust in first cone pump (9) is imported second and received in powder cabin (5) by the compressed air for crossing the first compressed air hose (19) importing.
3. a kind of anti-fracture coal dust applied to metallurgy according to claim 2 recycles stocking system, it is characterised in that: institute
It states and is additionally provided on the first seamless pipe (18) the first pneumatic operated valve (12), it is fixed that first is provided on first compressed air hose (19)
Position ball valve (13).
4. a kind of anti-fracture coal dust applied to metallurgy according to claim 2 recycles stocking system, it is characterised in that: institute
Stating auxiliary grinding pipeline further includes third grinder (4), third receipts powder cabin (7) and third cone pump (11), and the main grinding is defeated
Line sending further includes the 4th cone pump (10), and the 4th cone pump (10) receives powder cabin (7) by the second seamless pipe (20) and third
It is connected to, is connected with the second compressed air hose (21) on second seamless pipe (20), and the second seamless pipe (20) and the second compression
Air hose (21) junction is provided with the second air compensation device (17), and second air compensation device (17) passes through the second compressed air hose (21)
Coal dust in 4th cone pump (10) is imported third and received in powder cabin (7) by the compressed air of importing.
5. a kind of anti-fracture coal dust applied to metallurgy according to claim 4 recycles stocking system, it is characterised in that: institute
It states and is additionally provided on the second seamless pipe (20) the second pneumatic operated valve (16), it is fixed that second is provided on second compressed air hose (20)
Position ball valve (15).
6. a kind of anti-fracture coal dust applied to metallurgy according to claim 5 recycles stocking system, it is characterised in that: institute
Stating the first seamless pipe (18) is DN80, and the first compressed air hose (19) is DN25, and the second seamless pipe (20) is DN100, the second pressure
Contracting air hose (21) is DN25.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811640530.7A CN109628671A (en) | 2018-12-29 | 2018-12-29 | A kind of anti-fracture coal dust recycling stocking system applied to metallurgy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811640530.7A CN109628671A (en) | 2018-12-29 | 2018-12-29 | A kind of anti-fracture coal dust recycling stocking system applied to metallurgy |
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| Publication Number | Publication Date |
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| CN109628671A true CN109628671A (en) | 2019-04-16 |
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ID=66054648
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811640530.7A Pending CN109628671A (en) | 2018-12-29 | 2018-12-29 | A kind of anti-fracture coal dust recycling stocking system applied to metallurgy |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205839048U (en) * | 2016-08-02 | 2016-12-28 | 河北中重冷轧材料有限公司 | Blast furnace long period stablizes coal injection device |
| CN206721235U (en) * | 2017-04-21 | 2017-12-08 | 重庆钢铁(集团)有限责任公司 | One kind returns pulverized coal system |
| CN207259528U (en) * | 2017-04-07 | 2018-04-20 | 首钢集团有限公司 | A kind of blast furnace coal dust control system |
| CN208328052U (en) * | 2018-04-18 | 2019-01-04 | 唐山市德龙钢铁有限公司 | A kind of fine coal blowing unit of blast that coal powder injection is stable |
-
2018
- 2018-12-29 CN CN201811640530.7A patent/CN109628671A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205839048U (en) * | 2016-08-02 | 2016-12-28 | 河北中重冷轧材料有限公司 | Blast furnace long period stablizes coal injection device |
| CN207259528U (en) * | 2017-04-07 | 2018-04-20 | 首钢集团有限公司 | A kind of blast furnace coal dust control system |
| CN206721235U (en) * | 2017-04-21 | 2017-12-08 | 重庆钢铁(集团)有限责任公司 | One kind returns pulverized coal system |
| CN208328052U (en) * | 2018-04-18 | 2019-01-04 | 唐山市德龙钢铁有限公司 | A kind of fine coal blowing unit of blast that coal powder injection is stable |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190416 |
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| RJ01 | Rejection of invention patent application after publication |