CN109943675A - The moveable rapid block-cleaning device and method of coal dust Zhi Guanyong integral type - Google Patents
The moveable rapid block-cleaning device and method of coal dust Zhi Guanyong integral type Download PDFInfo
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- CN109943675A CN109943675A CN201910305371.3A CN201910305371A CN109943675A CN 109943675 A CN109943675 A CN 109943675A CN 201910305371 A CN201910305371 A CN 201910305371A CN 109943675 A CN109943675 A CN 109943675A
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- coal dust
- powder tank
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- block
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
Abstract
The invention discloses a kind of moveable rapid block-cleaning device and methods of coal dust Zhi Guanyong integral type, belong to metallurgy, coal chemical technology, which includes: to receive powder tank, for collecting the coal dust blocked in coal dust branch pipe；Blockage removal system is set to and receives on powder tank, for removably connecting with coal dust branch pipe；Compression system is set on blockage removal system, for connecting with external pressurized device；The powder system is set to and receives on powder tank and connect with compression system, for conveying the coal dust received in powder tank outward；Fluidization system is set to and receives on powder tank and connect with compression system, for assisting the coal dust in receipts powder tank to flow to the powder system；Exhaust system is set to and receives on powder tank, releases for receiving air pressure in powder tank.The present invention has many advantages, such as efficient, quick, energy-saving and environmental protection, can be avoided the block clearing of coal dust branch pipe and puts in the process to idle discharge, pollutes environment, while the coal dust of collection penetrating blast furnace being efficiently used, economizes on resources.
Description
Technical field
The invention belongs to the technical fields such as metallurgy, coal chemical industry, and in particular to a kind of coal dust Zhi Guanyong integral type is moveable
Rapid block-cleaning device and method.
Background technique
As China's steel industry environmental protection policy persistently upgrades, blast furnace ironmaking production for each unit environmental requirement also increasingly
It is harsh.Bf coal injection system is to be responsible for coal dust using coal dust, is delivered to distributor by compressed air and nitrogen, then through coal dust
Branch pipe is delivered to each air port.Pneumatic conveying is to carry coal dust using high pressure gas to flow in closed conduit, in coal dust branch pipe
Flow velocity is very low, once conveying aerodynamic force is insufficient, pulverized coal particle settles, be easy to cause coal dust branch blockage, influence blast furnace
Coal powder injection.Once detecting that coal dust branch pipe breaks coal, then needs to carry out block clearing, there are five types of production scene routine Method of blockage removal: the first
It is to close coal dust branch pipe stop valve, switches to compressed air and purged into blast furnace, the operation can when blocking not serious
Clear and coherent, when stemming length is longer, which can aggravate line clogging；Second is by the interruption of coal dust branch pipe end and spray gun
Drive row pressure release into, which directly puts coal dust to idle discharge, causes environmental pollution, while a large amount of coal dusts are deposited on tuyere platform and furnace
On shell, there are detonation security risks；The third sees patent CN202322879U, and concrete operations are to close coal dust branch pipe stop valve,
Coal powder collection device is set on distributor platform, and coal dust collected by this method needs manually to arrive distributor platform coal gas region
On be recycled, increase operator's risk；4th kind is shown in patent CN207699616U, and concrete operations are in coal dust branch
One cloth bag with stop valve is installed between pipe end sebific duct and spray gun, after this method branch blockage can pressure release, but work as coal dust
After branch pipe Severe blockage, it cannot be difficult clear and coherent to repressurization is carried out in pipeline；5th kind is shown in patent CN207047267U,
Block clearing bustle pipe is installed, the coal dust that this method is collected is difficult to be efficiently used, and mechanism bulky complex, while bustle pipe above air port
Tuyere platform lifting is influenced, inconvenience is implemented.
Summary of the invention
In view of this, the purpose of the present invention is to provide a kind of moveable rapid block-cleaning devices of coal dust Zhi Guanyong integral type
And method, it can be avoided the block clearing of coal dust branch pipe and idle discharge put in the process, pollute environment, additionally it is possible to which the coal dust of collection is sprayed into blast furnace
It is efficiently used, is economized on resources.
The present invention is achieved through the following technical solutions:
The moveable rapid block-cleaning device of a kind of coal dust Zhi Guanyong integral type provided by the invention, comprising: receive powder tank, be used for
Collect the coal dust blocked in coal dust branch pipe；Blockage removal system is set to and receives on powder tank, for removably connecting with coal dust branch pipe；Add
Pressure system is set on blockage removal system, for connecting with external pressurized device；The powder system, be set to receive powder tank on and and compression train
System connection, for conveying the coal dust received in powder tank outward；Fluidization system is set to and receives on powder tank and connect with compression system, uses
The coal dust in powder tank, which is received, in auxiliary flows to the powder system；Exhaust system is set to and receives on powder tank, releases for receiving air pressure in powder tank.
Further, the blockage removal system is by block clearing pipeline, the first block clearing valve, the second block clearing valve, block clearing Quick Release hose, Quick Release
Threeway composition, the block clearing Pipe installing are being arranged first with the connecting side of block clearing Quick Release hose one end thereon on receiving powder tank
Block clearing valve；The Quick Release threeway is connect with branch gas tube, spray gun, block clearing Quick Release hose, thereon another with block clearing Quick Release hose
The second block clearing valve is arranged in the connecting side at end.
Further, the compression system is by capstan, the first pressurizing valve and the second pressurizing valve on capstan
Composition, described capstan one end are connect by the Quick Release hose that pressurizes with external pressurized device, and the other end is connected to block clearing pipeline
Above and relative to the first block clearing valve and receive the setting of powder tank heteropleural.
Further, the powder system is by pulverized coal feed pipe, the defeated powder valve group on pulverized coal feed pipe at the pulverized coal feed pipe
One end, which is connected to, receives powder tank, and the other end is connected between the first pressurizing valve and the second pressurizing valve in compression system.
Further, the fluidization system is made of fluidisation pipeline, fluidizing valve, fluidizer, and described fluidisation pipeline one end connects
It is connected on capstan and is arranged relative to the first pressurizing valve and the second pressurizing valve heteropleural, powder pot bottom is being received in the other end and setting
Fluidizer connection, the fluidizing valve be set to fluidisation pipeline on.
Further, the exhaust system is made of exhaust pipe, the exhaust valve on exhaust pipe and filter device.
Further, it is additionally provided with first pressure sensor on the block clearing pipeline, is additionally provided with second pressure on the receipts powder tank
Sensor.
Further, the receipts powder tank is arranged on the rack, and the bottom of the rack is provided with guide wheel.
The present invention also provides a kind of rapid block-cleaning methods for coal dust branch pipe, comprising: firstly, being seen using air port peep-hole
It examines and determines that coal dust branch pipe has blocked；Then, the connection between the coal dust branch pipe and spray gun is cut off, and right is wanted
The described in any item rapid block-cleaning devices of 1-8 are asked to be connected between the two；Then, pass through the compression system of rapid block-cleaning device
After being forced into setting pressure to coal dust branch pipe, the blocking coal powder collection in coal dust branch pipe is entered to receive powder tank by blockage removal system, until
Coal dust branch pipe no longer blocks；Then, it is returned in blast furnace by fluidization system and the powder system by the pulverized coal injection collected in powder tank is received, directly
To receiving in powder tank, there is no coal dusts；Finally, removing the rapid block-cleaning device and restoring the connection between coal dust branch pipe and spray gun.
The present invention has the advantages that
1, the present invention realizes that pressurization, block clearing, the operation of defeated powder integral type are integrated, structure is more compared with original process system
Add simple；
2, the present invention receives powder tank and is mounted on the bracket with guide wheel compared with original process system, can be in tuyere platform
It is upper flexibly mobile, realize rapid block-cleaning；
3, blocking coal dust can be sprayed into again blast furnace using pneumatic conveying and carried out by the present invention compared with original process system
It recycles, economizes on resources.
Other advantages, target and feature of the invention will be illustrated in the following description to a certain extent, and
And to a certain extent, based on will be apparent to those skilled in the art to investigating hereafter, Huo Zheke
To be instructed from the practice of the present invention.Target of the invention and other advantages can be realized by following specification and
It obtains.
Detailed description of the invention
To make the objectives, technical solutions, and advantages of the present invention clearer, below in conjunction with attached drawing to the present invention make into
The detailed description of one step, in which:
Fig. 1 is process flow explanatory diagram of the invention；
Description of symbols: first pressure sensor 1, the first block clearing valve 2, the second pressurizing valve 3, second pressure sensor 4 receive powder
Tank 5, bracket 6, defeated powder valve 7, the first pressurizing valve 8, fluidizing valve 9, pressurize Quick Release hose 10, guide wheel, fluidizer 12, pulverized coal feed pipe
13, block clearing pipeline 14, exhaust valve 15, filter device 16, block clearing Quick Release hose 17, the second block clearing valve 18, Quick Release threeway 19, second
Stop valve 20, coal dust branch pipe 21, the first stop valve 22, third stop valve 23, air port peep-hole 24.
Specific embodiment
Illustrate embodiments of the present invention below by way of specific specific example, those skilled in the art can be by this specification
Other advantages and efficacy of the present invention can be easily understood for disclosed content.The present invention can also pass through in addition different specific realities
The mode of applying is embodied or practiced, the various details in this specification can also based on different viewpoints and application, without departing from
Various modifications or alterations are carried out under spirit of the invention.It should be noted that diagram provided in following embodiment is only to show
Meaning mode illustrates basic conception of the invention, and in the absence of conflict, the feature in following embodiment and embodiment can phase
Mutually combination.
As shown in Figure 1, a kind of moveable rapid block-cleaning device of coal dust Zhi Guanyong integral type, including receive powder tank 5, compression train
System, blockage removal system, the powder system, fluidization system, exhaust system.Powder tank 5 is received to be used to collect the coal dust blocked in coal dust branch pipe 21；
Blockage removal system, which is set to, to be received on powder tank, for removably connecting with coal dust branch pipe 21, by block clearing pipeline 14, the first block clearing valve 2, the
Two block clearing valves 18, block clearing Quick Release hose 17, Quick Release threeway 19 form, block clearing pipeline 14 be mounted on receive powder tank 5 on, thereon with it is clear
The first block clearing valve 2 is arranged in the connecting side of stifled 17 one end of Quick Release hose；The Quick Release threeway 19 and branch gas tube 21, spray gun, block clearing
Quick Release hose 17 connects, and the second block clearing valve 18 is being arranged with the connecting side of 17 other end of block clearing Quick Release hose thereon；Compression system
On blockage removal system, for being connect with external pressurized device, by capstan, the first pressurizing valve 8 on capstan
It is formed with the second pressurizing valve 3, capstan one end is connect by the Quick Release hose 10 that pressurizes with external pressurized device, other end connection
It is arranged on block clearing pipeline and relative to the first block clearing valve 2 with 5 heteropleural of powder tank is received；The powder system be set to receive powder tank 5 on and with add
Pressure system connection, for conveying the coal dust received in powder tank 5 outward, by pulverized coal feed pipe 13, the defeated powder on pulverized coal feed pipe 13
Valve 7 forms, and 13 one end of pulverized coal feed pipe, which is connected to, receives powder tank 5, and the other end is connected to the first pressurizing valve 8 and second in compression system
Between pressurizing valve 3；Fluidization system, which is set to, to be received on powder tank 5 and connect with compression system, for assisting receiving the coal dust flow direction in powder tank 5
The powder system is made of fluidisation pipeline, fluidizing valve 9, fluidizer 12, and fluidisation pipeline one end is connected on capstan simultaneously opposite
It is arranged in the first pressurizing valve and the second pressurizing valve heteropleural, the other end is connect with the fluidizer for receiving powder pot bottom is arranged in, and is fluidized
Valve 9 is set on fluidisation pipeline；Exhaust system, which is set to, to be received on powder tank 5, is released for receiving air pressure in powder tank 5, by exhaust pipe, is set to
Exhaust valve 15 and filter device 16 on exhaust pipe form.
It is additionally provided with first pressure sensor 1 on block clearing pipeline in the present embodiment, receives and is additionally provided with second pressure biography on powder tank 5
Sensor 4 can be used for checking pressure value when respective work.
Receipts powder tank 5 in the present embodiment is arranged in rack 6, and the bottom of rack 6 is provided with guide wheel 11.Convenient for moving at any time
Powder tank is received to each air port block clearing.
At work, rapid block-cleaning method includes as follows to the moveable rapid block-cleaning device of this coal dust Zhi Guanyong integral type
Step: firstly, being observed using air port peep-hole and determining that coal dust branch pipe has blocked；Then, the coal dust branch pipe is cut off
Connection between spray gun, and rapid block-cleaning device is connected between the two；Then, pass through the compression train of rapid block-cleaning device
Unite to coal dust branch pipe be forced into setting pressure after, the blocking coal powder collection in coal dust branch pipe is entered to receive powder tank by blockage removal system, directly
It is no longer blocked to coal dust branch pipe；Then, it is returned in blast furnace by fluidization system and the powder system by the pulverized coal injection collected in powder tank is received,
Until receiving in powder tank, there is no coal dusts；Finally, removing the rapid block-cleaning device and restoring the connection between coal dust branch pipe and spray gun.
Specifically, executing following steps when observing that coal dust branch pipe has blocked really from air port peep-hole 24:
Step 1 closes the third stop valve 23 on spray gun immediately, turns off the first stop valve 22 on coal dust branch pipe 21
With the second stop valve 20, Quick Release is connected between the second stop valve 20 on coal dust branch pipe 21 and the third stop valve 23 on spray gun
Threeway 19, and connect the Quick Release hose 10 that pressurizes；
Step 2 closes defeated powder valve 7, fluidizing valve 9, the first block clearing valve 2；Successively open exhaust valve 15, the first pressurizing valve 8,
Second pressurizing valve 3, the second block clearing valve 18, the second stop valve 20 are forced into setting pressure into coal dust branch pipe, block clearing Quick Release hose 17
After power (initial value 0.6MPa), closes the second pressurizing valve 3, opens the first block clearing valve 2, coal dust branch pipe 21 and block clearing Quick Release hose
High pressure gas carries coal dust and quickly releases to receipts powder tank 5 in 17, and through exhaust valve 15 and filter device 16, gas is discharged into greatly
Gas, coal dust are retained under the effect of filter device 16 and receive in powder tank 5.It is aobvious to first pressure sensor 1 and second pressure sensor 4
Show that receiving pressure in powder tank 5 closes the first block clearing valve 2 equal to setting pressure (initial value 0.001MPa), opens the second pressurizing valve
3, it repeats above operation.
Step 3 closes the second block clearing valve 18, and second on third stop valve 23, coal dust branch pipe 21 on opening spray gun cuts
Break valve 20 and the first stop valve 22, has seen whether that coal stream persistently occurs in air port peep-hole 24, if lasting occur, stops clear
Stifled, if not occurring persistently, repeatedly second step is operated；
Step 4 then closes the first stop valve 22 and second on coal dust branch pipe when confirming that coal dust branch pipe 21 is clear and coherent
Stop valve 20 closes the first pressurizing valve 9, the first block clearing valve 2, exhaust valve 15, opens the second block clearing valve 18, the second pressurizing valve 3, and
After opening 9 pairs of receipts powder tanks 5 of fluidizing valve are forced into setting pressure (initial value 0.6MPa), defeated powder valve 7 is opened, coal in powder tank 5 will be received
Powder sprays into blast furnace, completes coal dust recycling；
Step 5 closes fluidizing valve 9, the second block clearing valve 18 after coal dust empties in receipts powder tank 5, opens on coal dust branch pipe
The second stop valve 20 and the first stop valve 22, restore the normal coal powder injection of blast furnace.
It is merely a preferred embodiment of the present invention, is not intended to restrict the invention, it is clear that those skilled in the art described in upper
Various changes and modifications can be made to the invention without departing from the spirit and scope of the present invention.If in this way, this of the invention
Within the scope of the claims of the present invention and its equivalent technology, then the present invention is also intended to encompass these and changes a little modifications and variations
Including dynamic and modification.
Claims (9)
1. a kind of moveable rapid block-cleaning device of coal dust Zhi Guanyong integral type characterized by comprising
It receives powder tank (5), for collecting the coal dust blocked in coal dust branch pipe (21)；
Blockage removal system is set to and receives on powder tank, for removably connecting with coal dust branch pipe；
Compression system is set on blockage removal system, for connecting with external pressurized device；
The powder system is set to and receives on powder tank and connect with compression system, for conveying the coal dust received in powder tank outward；
Fluidization system is set to and receives on powder tank and connect with compression system, for assisting the coal dust in receipts powder tank to flow to the powder system；
Exhaust system is set to and receives on powder tank, releases for receiving air pressure in powder tank.
2. the moveable rapid block-cleaning device of coal dust Zhi Guanyong integral type according to claim 1, which is characterized in that described
Blockage removal system is by block clearing pipeline (14), the first block clearing valve (2), the second block clearing valve (18), block clearing Quick Release hose (17), Quick Release threeway
(19) it forms, the block clearing Pipe installing is being arranged first with the connecting side of block clearing Quick Release hose one end thereon on receiving powder tank
Block clearing valve；The Quick Release threeway is connect with branch gas tube, spray gun, block clearing Quick Release hose, thereon another with block clearing Quick Release hose
The second block clearing valve is arranged in the connecting side at end.
3. the moveable rapid block-cleaning device of coal dust Zhi Guanyong integral type according to claim 2, which is characterized in that described
Compression system is made of capstan, the first pressurizing valve (8) on capstan and the second pressurizing valve (3), the pressurization
Pipeline one end by pressurize Quick Release hose (10) connect with external pressurized device, the other end be connected on block clearing pipeline and relative to
First block clearing valve and receipts powder tank heteropleural setting.
4. the moveable rapid block-cleaning device of coal dust Zhi Guanyong integral type according to claim 3, which is characterized in that described
The powder system is made of pulverized coal feed pipe (13), the defeated powder valve (7) on pulverized coal feed pipe, and described pulverized coal feed pipe one end is connected to receipts
Powder tank, the other end are connected between the first pressurizing valve and the second pressurizing valve in compression system.
5. the moveable rapid block-cleaning device of coal dust Zhi Guanyong integral type according to claim 4, which is characterized in that described
Fluidization system is made of fluidisation pipeline, fluidizing valve (9), fluidizer (12), and described fluidisation pipeline one end is connected to capstan
Above and relative to the first pressurizing valve and the second pressurizing valve heteropleural it is arranged, the other end connects with the fluidizer for receiving powder pot bottom is arranged in
It connects, the fluidizing valve is set on fluidisation pipeline.
6. the moveable rapid block-cleaning device of coal dust Zhi Guanyong integral type according to claim 5, which is characterized in that described
Exhaust system is made of exhaust pipe, the exhaust valve (15) on exhaust pipe and filter device (16).
7. the moveable rapid block-cleaning device of coal dust Zhi Guanyong integral type according to claim 6, which is characterized in that described
It is additionally provided on block clearing pipeline first pressure sensor (1), is additionally provided with second pressure sensor (4) on the receipts powder tank.
8. the moveable rapid block-cleaning device of coal dust Zhi Guanyong integral type according to claim 1-7, feature
It is, the receipts powder tank is arranged on rack (6), and the bottom of the rack is provided with guide wheel (11).
9. a kind of rapid block-cleaning method for coal dust branch pipe characterized by comprising firstly, being observed using air port peep-hole
And determine that coal dust branch pipe has blocked；Then, the connection between the coal dust branch pipe and spray gun is cut off, and by claim
The described in any item rapid block-cleaning devices of 1-8 are connected between the two；Then, by the compression system of rapid block-cleaning device to coal
After powder branch pipe is forced into setting pressure, the blocking coal powder collection in coal dust branch pipe is entered to receive powder tank by blockage removal system, until coal dust
Branch pipe no longer blocks；Then, it is returned in blast furnace by fluidization system and the powder system by the pulverized coal injection collected in powder tank is received, until receiving
There is no coal dusts in powder tank；Finally, removing the rapid block-cleaning device and restoring the connection between coal dust branch pipe and spray gun.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910305371.3A CN109943675B (en) | 2019-04-16 | 2019-04-16 | Integral movable rapid blocking removing device and method for pulverized coal branch pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910305371.3A CN109943675B (en) | 2019-04-16 | 2019-04-16 | Integral movable rapid blocking removing device and method for pulverized coal branch pipe |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109943675A true CN109943675A (en) | 2019-06-28 |
| CN109943675B CN109943675B (en) | 2023-09-12 |
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ID=67015291
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910305371.3A Active CN109943675B (en) | 2019-04-16 | 2019-04-16 | Integral movable rapid blocking removing device and method for pulverized coal branch pipe |
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| CN (1) | CN109943675B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1064314A (en) * | 1992-04-08 | 1992-09-09 | 冶金工业部钢铁研究总院 | Transport method for concentrate phase coal spray in blast furnace |
| JP2006063417A (en) * | 2004-08-30 | 2006-03-09 | Jfe Steel Kk | Method for canceling clogging in nozzle of facility for blowing pulverized coal |
| CN201459155U (en) * | 2009-07-13 | 2010-05-12 | 山西太钢不锈钢股份有限公司 | Device for reclaiming coal dust of blast furnace |
| CN201762347U (en) * | 2010-07-07 | 2011-03-16 | 河北津西钢铁集团股份有限公司 | Pulverized coal recovery device for blast furnace coal injection pipeline filter |
| CN202072711U (en) * | 2011-04-21 | 2011-12-14 | 冷水江钢铁有限责任公司 | Pulverized coal recovery and blowing device of blast furnace |
| CN202688351U (en) * | 2012-05-14 | 2013-01-23 | 宋英玲 | Trolley device for reversely blowing pulverized coal |
| CN209798006U (en) * | 2019-04-16 | 2019-12-17 | 中冶赛迪技术研究中心有限公司 | Integrated movable quick blockage clearing device for pulverized coal branch pipe |
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2019
- 2019-04-16 CN CN201910305371.3A patent/CN109943675B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1064314A (en) * | 1992-04-08 | 1992-09-09 | 冶金工业部钢铁研究总院 | Transport method for concentrate phase coal spray in blast furnace |
| JP2006063417A (en) * | 2004-08-30 | 2006-03-09 | Jfe Steel Kk | Method for canceling clogging in nozzle of facility for blowing pulverized coal |
| CN201459155U (en) * | 2009-07-13 | 2010-05-12 | 山西太钢不锈钢股份有限公司 | Device for reclaiming coal dust of blast furnace |
| CN201762347U (en) * | 2010-07-07 | 2011-03-16 | 河北津西钢铁集团股份有限公司 | Pulverized coal recovery device for blast furnace coal injection pipeline filter |
| CN202072711U (en) * | 2011-04-21 | 2011-12-14 | 冷水江钢铁有限责任公司 | Pulverized coal recovery and blowing device of blast furnace |
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| CN209798006U (en) * | 2019-04-16 | 2019-12-17 | 中冶赛迪技术研究中心有限公司 | Integrated movable quick blockage clearing device for pulverized coal branch pipe |
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| CN109943675B (en) | 2023-09-12 |
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