CN109897926A - Blast furnace gravitational dust collection apparatus for ash - Google Patents
Blast furnace gravitational dust collection apparatus for ash Download PDFInfo
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- CN109897926A CN109897926A CN201711310642.1A CN201711310642A CN109897926A CN 109897926 A CN109897926 A CN 109897926A CN 201711310642 A CN201711310642 A CN 201711310642A CN 109897926 A CN109897926 A CN 109897926A
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- ash
- blast furnace
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- telescopic device
- tank car
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Abstract
The present invention relates to a kind of blast furnace gravitational dust collection apparatus for ash, it is characterized in that, the dedusting apparatus for ash includes coal gas deashing blender, electrical retractor, blast furnace cast house dedusting system pipeline, electrical retractor horizontally slips track, tank car, steel structure platform, bore section tuning fork level switch and star-shaped dust-discharging valve, the coal gas deashing blender, the track that horizontally slips is arranged on steel structure platform, star-shaped dust-discharging valve is provided with below the cone section tuning fork level switch, the blast furnace cast house dedusting system pipeline is arranged on electrical retractor, the electrical retractor is located at the lower section of steel structure platform.The program solves the problems, such as that gravitational dust collection puts the use of the problem of ash is easy to appear environmental pollution and dedusting ash, energy conservation and environmental protection.
Description
Technical field
The present invention relates to a kind of blast furnace gravitational dust collection apparatus for ash, belong to blast furnace slag processing technology field.
Background technique
Gravitational dust collection is primary dedusting for blast furnace, and for mainly blast furnace in smelting process, coke burning is height
Furnace, which is smelted, provides heat, realizes that sinter carries out redox, after coke burning, forms blast furnace gas, blast furnace gas passes through upper
Riser draws blast-furnace body, and the mixtures such as metallic dust are precipitated by the gravity of gravitational dust collection tower, forms primary dedusting technique, warp
The coal gas for crossing primary dedusting technique is purified, and is further purified using dry method dust or wet dedusting, purified coal
Gas generallys use TRT turbine power generation and finally enters gaspipe network；The dedusting ash that gravitational dust collection is formed, granularity is small, tenor
Up to 60% or more, dust processing has following problem: a, gravitational precipitator put ash using humidification, because of post union operation work
Technical ability difference can generate fugitive dust, while operation if the matching relationship adjusting put when ash between inflow and dreg discharge amount is not in place
There are biggish gas safety risks for process.B, current technology puts grey mode and easily causes stirring cage dust stratification, it is necessary to periodically be rinsed with water
Stirring cage inner wall and mace cause ground dust stratification, deposition, and site environment is seriously polluted, cause environmentally friendly risk.C, terrace is rinsed
Mud and contamination water enter gutter, form water pollution.D, because gravitational dust collection ash temperature is higher, generally up to 80 DEG C, in the working of a furnace
When not normal, even as high as 120 DEG C, high temperature is big to drainage and irrigation vehicle damage is inhaled, therefore a patented technology " gravitational dust collection tank car occurs
Ash conveying device " CN2761226Y, exactly solve this high temperature problem, increase an intermediate bin and a series of nitrogen it is cooling,
Curing system solves the problems, such as High-temperature cooling, and this technical solution processing technique is complicated outer, once breaking down, which cannot
Meet blast furnace emergency production, and it is conventional use truck transport, easily generating road surface in the process sheds, and causes to transport on the way secondary
Pollution, environmentally friendly risk are higher.E, key is that the dust difficulty of gravitational dust collection is handled in an efficient way.Therefore, urgent need one
The new scheme of kind solves the technical problem.
Summary of the invention
The present invention exactly for the technical problems in the prior art, provides a kind of blast furnace gravitational dust collection apparatus for ash, should
Scheme solves the problems, such as that gravitational dust collection puts the use of the problem of ash is easy to appear environmental pollution and dedusting ash, energy conservation and environmental protection.
To achieve the goals above, technical scheme is as follows, and a kind of blast furnace gravitational dust collection apparatus for ash, feature exists
In, the dedusting apparatus for ash include coal gas deashing blender, it is electrical retractor, blast furnace cast house dedusting system pipeline, electronic
Telescopic device horizontally slips track, tank car, steel structure platform, cone section tuning fork level switch and star-shaped dust-discharging valve, the coal gas
Deashing blender, the track that horizontally slips are arranged on steel structure platform, are provided with star below the cone section tuning fork level switch
Type unloading valve, the blast furnace cast house dedusting system pipeline are arranged on electrical retractor, and the electrical retractor is located at
The lower section of steel structure platform.
It as an improvement of the present invention, is DN150 seamless steel pipe inside the telescopic device, external covered with cage seals,
Cage set top connects blast furnace cast house dedusting system pipeline, by the dust spread when putting ash and is squeezed the mixed gas of tank body is discharged
It is pumped into blast furnace cast house dedusting system.
As an improvement of the present invention, 4 tuning-fork type material are set on the gravitational precipitator ash cellar cone section different height
Bit switch detects height material position respectively, monitors position and forbids material position.
As an improvement of the present invention, the electrical retractor band detecting element, telescopic head lower bands probe, with dress
It sets and enters in tank car together, encounter probe after material is full and form resistance, alarm immediately, and signal is passed into middle control.
The processing method of blast furnace gravitational dust collection apparatus for ash, which is characterized in that the method is as follows: powder tank car stopping first being arrived
Grey position is unloaded, grey driver's sending request is at this time unloaded and unloads gray signal, which carries out the material position inspection of ash cellar cone section, such as
Fruit is not that then the moment, which enters, unloads grey process in lowest order, unloads grey telescopic device decentralization, is directed at the tank mouth of powder tank car, coal gas is clear
Grey blender is started to work, and star-shaped dust-discharging valve starts rotary unloading ash, the gravitational dust collection ash of such conical section along ash pipeline, ash bucket,
Enter tank car by star-shaped dust-discharging valve, coal gas deashing blender, telescopic device, this when be carved with slight fugitive dust, gone out by blast furnace
Iron field dust pelletizing system pipeline enters system dust removing, and blast furnace cast house dedusting system pipeline is using the angle tilted down, it is ensured that removes
When dirt insufficient pressure, cleaning shaft is not blocked, during putting ash, the detection device unloaded in grey telescopic device constantly detects tank car
In grey position, when a tank car high position has been arrived in grey position, immediately close star-shaped dust-discharging valve, delay 5 seconds stopping coal gas deashing blenders, prolong
When 10 seconds after mention and unload grey telescopic device to stop position, once putting grey process terminates, into the tank car haulage stage；Putting grey process
In, ash is normally unloaded if ash position height is enough in the grey position in same detection cone section, if occurred during normally unloading ash
The grey position for boring section reaches the low level of setting, is detected by Tuning Fork Switch, and it is low and gravitational dust collection tower occur to bore section ash position in order to prevent
The sealing that interior coal gas loses gravitational dust collection ash leaks, which closes 5 seconds star-shaped dust-discharging valve, delay stopping coal gas immediately
Deashing blender, delay mentions after 10 seconds unloads grey telescopic device to stop position, and putting grey process pressure terminates；In high working of a furnace exception or
There is abnormal, the realization state of emergency in person's telescopic device, and electronic mobile telescopic device edge moves slideway and removes feed opening, uses tradition
Unload grey mode, dumper ash puts grey process by deashing blender and adds water.
Compared with the existing technology, the invention has the advantages that, 1) unload ash during, using the dust leg of routine techniques,
Mixer system, but not using in blender plus by the way of water, blender is only used as means of delivery and gravitational dust collection ash
The tool of pipe and external environment sealing；2) increase from blender cinder-discharging port to unload grey vehicle can electrical retractor, stretch
Device uses blast furnace system dedusting, realizes that ash is unloaded in sealing；3) dedusting is loaded and unloaded using the powder tank car of the unpowered dust exhaust apparatus of high temperature resistant
Ash, it is ensured that sealing.
Detailed description of the invention
Fig. 1 gravitational dust collection process principle figure；
Fig. 2 gravitational dust collection puts grey process principle figure；
Fig. 3 gravitational dust collection sintering process ingredient schematic diagram
In figure: 1, coal gas deashing blender；2, electrical retractor (band detecting element)；3, blast furnace cast house dedusting system pipe
Road；4, electrical retractor horizontally slips track；5, tank car；6, steel structure platform；7, section tuning fork level switch is bored；8, star-like to unload
Grey valve, 21, unload quick-fried valve, 23, flat gate valve and rigid impeller feeding machine, 24, belted electronic balance, 25, sintering sealing-tape machine；26, it removes
Dirt device, 27, Pneumatic conveying pipeline.
Specific embodiment:
In order to deepen the understanding of the present invention, the present embodiment is described in detail with reference to the accompanying drawing.
Embodiment 1: referring to Fig. 1, a kind of blast furnace gravitational dust collection apparatus for ash, the dedusting apparatus for ash includes the stirring of coal gas deashing
Machine 1, electrical retractor 2, blast furnace cast house dedusting system pipeline 3, electrical retractor horizontally slip track 4, tank car 5, steel
Structure platform 6, cone section tuning fork level switch 7 and star-shaped dust-discharging valve 8, the coal gas deashing blender 1, horizontally slip track 4
It is arranged on steel structure platform, the lower section of the cone section tuning fork level switch 7 is provided with star-shaped dust-discharging valve 8, the blast furnace casting
Field dust pelletizing system pipeline 3 is arranged on electrical retractor 2, and the electrical retractor 2 is located at the lower section of steel structure platform 6,
It is DN150 seamless steel pipe inside the telescopic device, external covered with cage seals, and cage set top connects blast furnace cast house dedusting system pipe
The mixed gas that tank body is discharged in the dust spread when putting ash and being squeezed is pumped into blast furnace cast house dedusting system by road, described heavy
Inertia force precipitator ash cellar, which is bored, is arranged 4 tuning-fork type level switchs on section different height, detect height material position respectively, monitors position and forbids
Material position, the electrical retractor band detecting element, telescopic head lower bands probe enter in tank car, material is full together with device
After encounter probe and form resistance, alarm immediately, and signal is passed into middle control.
The course of work: referring to Fig. 1, Fig. 2, when blast furnace needs to carry out gravitational dust collection to put grey operation, powder tank car stops first
To grey position is unloaded, at this time unloads grey driver's sending request and unload gray signal, which carries out the material position inspection of ash cellar cone section,
Grey process part figure one is unloaded if not in lowest order, then the moment enters, grey telescopic device 4 is unloaded and transfers, be directed at the tank of powder tank car 5
Mouthful, coal gas deashing blender 1) it starts to work, star-shaped dust-discharging valve 8 starts rotary unloading ash, the gravitational dust collection ash edge of such conical section
Ash pipeline, ash bucket, by star-shaped dust-discharging valve 8, coal gas deashing blender 1, telescopic device 1 enter tank car, this when be carved with it is slight
Fugitive dust enters system dust removing 3 by blast furnace cast house dedusting system pipeline, and blast furnace cast house dedusting system pipeline is used and dipped down
Oblique angle, it is ensured that when dedusting insufficient pressure, do not block cleaning shaft, during putting ash, unload the detection in grey telescopic device 1
Device constantly detects the grey position in tank car, when a tank car high position has been arrived in grey position, closes star-shaped dust-discharging valve 8 immediately, stops within delay 5 seconds
Coal gas deashing blender 1, delay mentions after 10 seconds unloads grey telescopic device to stop position, and once putting grey process terminates, and transports into tank car
The defeated stage；During putting ash, ash is normally unloaded if ash position height is enough in the grey position in same detection cone section, if
During normally unloading ash, the grey position for cone section occur reaches the low level of setting, is detected by Tuning Fork Switch 7, then boring in order to prevent
The grey position of section is low and the coal gas in gravitational dust collection tower occurs and lose the sealing of gravitational dust collection ash leaking, which closes star immediately
5 seconds type unloading valve 8, delay stopping coal gas deashing blenders 1, delay mention after 10 seconds and unload grey telescopic device 2 to stop position, put grey stream
Journey pressure terminates；In high working of a furnace exception or there is abnormal, the realization state of emergency, electronic mobile telescopic device edge in telescopic device
Mobile slideway 4 removes feed opening, and using traditional grey mode of unloading, dumper ash puts grey process by deashing blender and adds water.
Referring to Fig. 3, after powder tank car transports sintering, powder tank car 5 stops arriving discharge level, there is 27 pressure of compressed air all the way
0.4 ~ 0.8MPa has a connector that will connect the discharge port of tank car in ash cellar tank car park, passes through the ash pipeline of certain diameter
At the top of to ash cellar, which is sealed, and quick-fried valve and bag filter are unloaded in installation above, opens compressed air, realizes gravity
The pneumatic conveying of dedusting ash unloads quick-fried valve 21 and bag filter 26 by the PLC of the system configuration and carries out safety and environment protection control；
After gravitational dust collection ash enters ash cellar, flat gate valve is installed in ash cellar feed opening and rigid impeller feeding machine 23 realizes unloading for ash cellar
Weighing is fixed after the proportion of sinter is set, while through the belted electronic balance 24 of mouth under batcher, under in material
Level-one sealing-tape machine 25 realizes ingredient, because gravitational dust collection ash iron content is high, hard, serious to pipeline erosion, pipeline bimetallic is resistance to
Mill pipe.
It should be noted that above-described embodiment, is not intended to limit the scope of protection of the present invention, in above-mentioned technical proposal
On the basis of made equivalents or substitution each fall within the range that the claims in the present invention are protected.
Claims (5)
1. a kind of blast furnace gravitational dust collection apparatus for ash, which is characterized in that the dedusting apparatus for ash includes coal gas deashing blender, electronic
Telescopic device, blast furnace cast house dedusting system pipeline, electrical retractor horizontally slip track, tank car, steel structure platform, cone section
Tuning fork level switch and star-shaped dust-discharging valve, the coal gas deashing blender, the track that horizontally slips are arranged on steel structure platform,
Star-shaped dust-discharging valve is provided with below the cone section tuning fork level switch, the blast furnace cast house dedusting system pipeline is arranged in electricity
On dynamic telescopic device, the electrical retractor is located at the lower section of steel structure platform.
2. blast furnace gravitational dust collection apparatus for ash according to claim 1, which is characterized in that be inside the telescopic device
DN150 seamless steel pipe, external covered with cage seal, and cage set top connects blast furnace cast house dedusting system pipeline, by what is spread when putting ash
The mixed gas that tank body is discharged in dust and being squeezed is pumped into blast furnace cast house dedusting system.
3. blast furnace gravitational dust collection apparatus for ash according to claim 2, which is characterized in that the gravitational precipitator ash cellar bores section
4 tuning-fork type level switchs are set on different height, detect height material position respectively, monitor position and forbid material position.
4. blast furnace gravitational dust collection apparatus for ash according to claim 3, which is characterized in that the electrical retractor band detection
Element, telescopic head lower bands probe, enters in tank car together with device, encounters probe after material is full and forms resistance, alarms immediately,
And signal is passed into middle control.
5. the processing method of blast furnace gravitational dust collection apparatus for ash described in claim 1-4 any one, which is characterized in that the method
As follows: powder tank car stops to grey position is unloaded first, at this time unloads grey driver's sending request and unloads gray signal, which carries out
Ash cellar bores the material position inspection of section, unloads grey process if not in lowest order, then the moment enters, unloads grey telescopic device decentralization, right
The tank mouth of quasi- powder tank car, coal gas deashing blender are started to work, and star-shaped dust-discharging valve starts rotary unloading ash, the gravity of such conical section
Dedusting ash enters tank car along ash pipeline, ash bucket, by star-shaped dust-discharging valve, coal gas deashing blender, telescopic device, this when be carved with it is light
Micro- fugitive dust enters system dust removing by blast furnace cast house dedusting system pipeline, blast furnace cast house dedusting system pipeline use to
Under inclined angle, it is ensured that when dedusting insufficient pressure, do not block cleaning shaft, during putting ash, unload in grey telescopic device
Detection device constantly detects the grey position in tank car, when a tank car high position has been arrived in grey position, closes star-shaped dust-discharging valve, delay 5 seconds immediately
Stop coal gas deashing blender, delay mentions after 10 seconds and unloads grey telescopic device to stop position, and once putting grey process terminates, into tank car
Haulage stage；During putting ash, ash is normally unloaded if ash position height is enough in the grey position in same detection cone section, if
During normally unloading ash, the grey position for cone section occur reaches the low level of setting, is detected by Tuning Fork Switch, which closes star immediately
5 seconds type unloading valve, delay stopping coal gas deashing blenders, delay mention after 10 seconds and unload grey telescopic device to stop position, put grey process
Pressure terminates；In high working of a furnace exception or there is abnormal, the realization state of emergency in telescopic device, and electronic mobile telescopic device edge is moved
Sliding way removes feed opening, and using traditional grey mode of unloading, dumper ash puts grey process by deashing blender and adds water.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711310642.1A CN109897926A (en) | 2017-12-11 | 2017-12-11 | Blast furnace gravitational dust collection apparatus for ash |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711310642.1A CN109897926A (en) | 2017-12-11 | 2017-12-11 | Blast furnace gravitational dust collection apparatus for ash |
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| Publication Number | Publication Date |
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| CN109897926A true CN109897926A (en) | 2019-06-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201711310642.1A Pending CN109897926A (en) | 2017-12-11 | 2017-12-11 | Blast furnace gravitational dust collection apparatus for ash |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110273036A (en) * | 2019-07-31 | 2019-09-24 | 马鞍山钢铁股份有限公司 | A kind of gravity blast furnace dust catcher ash position monitoring alarm device and monitoring alarm method |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5936519A (en) * | 1982-08-20 | 1984-02-28 | Kawasaki Steel Corp | Dust discharging device of dust collector for blast furnace gas |
| JPS5987016A (en) * | 1982-11-10 | 1984-05-19 | Nippon Steel Corp | Dust removing device of blast furnace |
| CN1386866A (en) * | 2002-02-19 | 2002-12-25 | 欧阳汉峰 | Dust-free carloader for discharging ash from gravitational duster of blast furnace |
| CN2761622Y (en) * | 2004-12-28 | 2006-03-01 | 首钢总公司 | Tank car ash transportation device of gravity dust collector |
| CN200952023Y (en) * | 2006-03-24 | 2007-09-26 | 上海梅山钢铁股份有限公司 | Blast furnace gravity dust removing processing device |
| WO2010034791A1 (en) * | 2008-09-26 | 2010-04-01 | Siemens Vai Metals Technologies Gmbh & Co | Method and device for dry dust removal and cleaning of gas produced during iron production or coal gasification |
| JP2010255049A (en) * | 2009-04-24 | 2010-11-11 | Nippon Steel Engineering Co Ltd | Dust catcher for blast furnace gas |
| CN203699422U (en) * | 2013-12-13 | 2014-07-09 | 南京钢铁股份有限公司 | Dustless automatic ash discharging device |
-
2017
- 2017-12-11 CN CN201711310642.1A patent/CN109897926A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5936519A (en) * | 1982-08-20 | 1984-02-28 | Kawasaki Steel Corp | Dust discharging device of dust collector for blast furnace gas |
| JPS5987016A (en) * | 1982-11-10 | 1984-05-19 | Nippon Steel Corp | Dust removing device of blast furnace |
| CN1386866A (en) * | 2002-02-19 | 2002-12-25 | 欧阳汉峰 | Dust-free carloader for discharging ash from gravitational duster of blast furnace |
| CN2761622Y (en) * | 2004-12-28 | 2006-03-01 | 首钢总公司 | Tank car ash transportation device of gravity dust collector |
| CN200952023Y (en) * | 2006-03-24 | 2007-09-26 | 上海梅山钢铁股份有限公司 | Blast furnace gravity dust removing processing device |
| WO2010034791A1 (en) * | 2008-09-26 | 2010-04-01 | Siemens Vai Metals Technologies Gmbh & Co | Method and device for dry dust removal and cleaning of gas produced during iron production or coal gasification |
| JP2010255049A (en) * | 2009-04-24 | 2010-11-11 | Nippon Steel Engineering Co Ltd | Dust catcher for blast furnace gas |
| CN203699422U (en) * | 2013-12-13 | 2014-07-09 | 南京钢铁股份有限公司 | Dustless automatic ash discharging device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110273036A (en) * | 2019-07-31 | 2019-09-24 | 马鞍山钢铁股份有限公司 | A kind of gravity blast furnace dust catcher ash position monitoring alarm device and monitoring alarm method |
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Application publication date: 20190618 |