CN106753449B - A method of cleaning coke oven chute - Google Patents
A method of cleaning coke oven chute Download PDFInfo
- Publication number
- CN106753449B CN106753449B CN201611128664.1A CN201611128664A CN106753449B CN 106753449 B CN106753449 B CN 106753449B CN 201611128664 A CN201611128664 A CN 201611128664A CN 106753449 B CN106753449 B CN 106753449B
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- CN
- China
- Prior art keywords
- chamber
- chute
- coke oven
- oven
- carbonization chamber
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Classifications
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B43/00—Preventing or removing incrustations
- C10B43/02—Removing incrustations
- C10B43/04—Removing incrustations by mechanical means
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B29/00—Other details of coke ovens
- C10B29/02—Brickwork, e.g. casings, linings, walls
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Mechanical Engineering (AREA)
- Coke Industry (AREA)
Abstract
The present invention relates to a kind of methods for clearing up coke oven chute, it belongs to a kind of method for clearing up coke oven chute blockage.The present invention is mainly the technical issues of solving heavy workload existing for the method for existing coke oven processing chute blocking, and influence coke oven service life big on the damage of furnace wall.The technical solution adopted by the present invention are as follows: a method of cleaning coke oven chute is made of: one, preliminary preparation the following steps;Two, cooling is handled;Three, coke oven chute is dredged;Four, it heating treatment and resumes production.The present invention clears up chute from regenerator top from lower to upper, operational security improves, and will not damage because cooling down and heating up to coking chamber wall silica brick, will not more destroy furnace wall silica brick, and processing after-burner quirk can smoothly get angry, exhaust gas is discharged, and meet the uniformly heated demand of coke oven.
Description
Technical field
The present invention relates to a kind of methods for clearing up coke oven chute, it belongs to a kind of method for clearing up coke oven chute blockage.
Background technique
Coke oven is that coke-oven plant is main, equipment of most critical, and investment is big, and projected life was at 25 years or more.But coke oven with
The growth in furnace life, masonry aging, for a long time by mechanical force, operation when be frequently opened and closed fire door cold air eating temperature violent change punching
It hits, the influence of thermal stress effect, degrading occurs in carbonization chamber silica brick surface, unfilled corner, and crack occurs in furnace wall, and silica brick strength reduction is broken
Queen closer, pug are fallen into combustion chamber, remix the coal ash accumulated in production for many years, cause the blocking of chute area unsmooth, air-flow fortune
Row is obstructed, and air cannot smoothly reach bottom of combustion chamber, and exhaust gas can not be smoothly discharged, and cause part quirk that cannot normally add
Heat, charge of coke uneven ripening, Coke Quality make a big impact.
The method of chute plugging handling has at present: disclosing from furnace roof with drill rod, wheat head hammer drill is got through, air sweeping method, even
Carbonization chamber wall brick is removed the methods of manually to take.It is disclosed from furnace roof with drill rod, wheat head hammer drill is beaten, air sweeping method can only handle blocking
Slight chute, blocking is serious to be handled, and remove the method heavy workload that carbonization chamber wall brick manually takes, and carbonization chamber is also
To pass through cooling, temperature-rise period, it is big to the damage of furnace wall, influence coke oven service life.
Summary of the invention
Present invention aim to address heavy workload existing for the method for existing coke oven processing chute blocking, to the damage of furnace wall
The technical issues of bad big and influence coke oven service life, provide a kind of method for clearing up coke oven chute.
In order to solve the above technical problems, the technical solution adopted by the present invention are as follows:
A method of cleaning coke oven chute is made of the following steps:
One, preliminary preparation
(1) according to different coke oven models, required checker brick is transported to coke oven region in advance and are placed on two layers of coke oven
Between the arid region of platform or end stand;
(2) prepare fibrofelt and mineral flax heat-insulating heat-preserving material, prepare 3~4 sets of proximity suit;
(3) prepare cleaning outfit;
Two, cooling is handled
(1) stewing oven carbonization chamber and buffering furnace are set: when a wherein chute for coke oven combustion chamber need to be cleared up, according to duplex fire
The characteristics of road, sets stewing for the adjacent previous carbonization chamber in the combustion chamber if combustion chamber quirk is eyes where the chute
Oven carbonization chamber, the adjacent carbonization chamber in stewing oven carbonization chamber two sides are set as buffering furnace, and oven carbonization chamber and buffering furnace are boiled in a covered pot over a slow fire during cleaning not
It comes out of the stove;If combustion chamber quirk is simple eye where the chute, stewing furnace charcoal is set by the adjacent the latter carbonization chamber in the combustion chamber
Change room, the adjacent carbonization chamber in stewing oven carbonization chamber two sides is set as buffering furnace, and oven carbonization chamber is boiled in a covered pot over a slow fire during cleaning and buffering furnace is not come out of the stove;
(2) according to discharging plan, two side combusion chamber's coal gas of furnace heat (batch) number plus-minus opening of cock will be buffered in coking mid-term and will be adjusted
For 1/2 aperture;
(3) coal gas for closing stewing two side combusion chamber of oven carbonization chamber adds and subtracts cock, cuts off coal gas, and the time controls in the carbonization chamber
4~6 hours after coalingging;
(4) waste gas system: will clear up the corresponding shutter cokery side exhaust gas disc air inlet door guard plate of chute and covered with asbestic blanket,
And exhaust gas stone roller chain is disengaged, fall its whole;
Three, coke oven chute is dredged
(1) according to that need to clear up combustion chamber quirk position, burnt plate and regenerator top backplate are dropped down in dismounting, and 1~16# quirk is removed
Pusher side, 17~32# quirk remove coke side;If combustion chamber quirk is eyes where the chute, removes the combustion chamber and correspond to accumulation of heat
Room top coversheet and drop down burnt plate, if combustion chamber quirk where the chute be it is simple eye, remove the combustion chamber and correspond to the latter accumulation of heat
Room top coversheet and drop down burnt plate;
(2) it seals off wall: because regenerative chamber is separated two parts by regenerative chamber list wall, first removing the protection wall of regenerative chamber side, take lattice
Sub- brick, side checker brick use fiber felt seal after taking, then start to remove the protection wall of the regenerative chamber other side, regenerative chamber metope temperature
Remain 600~670 DEG C;
(3) checker brick are taken: using mode is successively removed from outer to inner from top to bottom, successively being put to designated position, by iron
Skin and 20mm fibrofelt are taped against on regenerator lattice brick, prevent the sundries such as brick from falling to regenerative chamber, and checker brick take out clear to needing
It manages at chute mouth, regenerator top height 1500mm at remaining checker brick, width 390mm, space meets personnel's prune job
Demand;
(4) regenerative chamber wall heat preservation: being pasted on the furnace wall of regenerative chamber two sides with 20mm fibrofelt and regenerator top thermal insulation separation
Heat, operating personnel have dressed proximity suit and have entered carry out prune job;
(5) it dredges chute: refuse collecting case and collecting vessel placement need to be cleared up into chute mouth lower part, clear up chute with tool,
After cleaning out, surrounding sundries is purged completely with compressed air from peephole, and the refuse collecting of cleaning is cleared up, transported
Regenerative chamber;
(6) checker brick are put: to the end of accumulation of heat chamber clean, the thermal insulation material at regenerative chamber wall and top are removed, by checker brick
It successively puts neat and fixes, damaged checker brick do not use, and fill up new checker brick;
(7) build regenerator sealing wall: checker brick, which are put, to be finished, and builds protection wall, and wipe thermal insulation material, regenerative chamber operation finishes;
(8) burnt plate and regenerator top backplate are dropped down in installation;
Four, it heating treatment and resumes production
(1) waste gas system: restore cokery side exhaust gas stone roller, and sundries around exhaust gas disc is cleaned up, remove air inlet door shield
Asbestos pad on plate;
(2) it opens stewing two side combusion chamber's coal gas of oven carbonization chamber and adds and subtracts cock: opening 1/2 after first opening 1/3,1 hour, after
Standard-sized sheet after 1 hour;
(3) it opens buffering two side combusion chamber's coal gas of heat (batch) number and adds and subtracts cock: two side combusion chamber's coal gas of oven carbonization chamber plus-minus to be boiled in a covered pot over a slow fire
After cock is opened, buffering two side combusion chamber's coal gas of heat (batch) number is added and subtracted into cock standard-sized sheet;
(4) coke pushing and coke pushing plan after layout cleaning: by the coke of buffering oven carbonization chamber and stewing oven carbonization chamber after cleaning
Charcoal is released, and gradually writing paper is returned to return to normal production.
The tool is straight peen drill rod, spiral head drill rod, small grafter, fortune brick slideway, takes off hook, service chamber and collecting vessel.
The present invention clears up chute by adopting the above technical scheme, from regenerator top from lower to upper, and operational security improves, no
Coking chamber wall silica brick can be damaged because cooling down and heating up, will not more destroy furnace wall silica brick, and handle after-burner quirk
It can smoothly get angry, exhaust gas is discharged, meet the uniformly heated demand of coke oven, the method for solving existing coke oven processing chute blocking
The technical issues of existing heavy workload, and influence coke oven service life big on the damage of furnace wall.Compared with the background art, this hair
It is bright to have the advantage that
(1) clearance time is short.In terms of the time of maintenance cleaning, 6 quirks of 6 meters of coke ovens, the repair time about 18 hours, phase
Than removing the mode that brick wall brick manually takes from carbonization chamber, the time of maintenance, the time was shorter at 60 hours or more.
(2) small to the damage of coking furnace shaft.The write brick material of coke oven regenerator is clay brick, the temperature being adapted to
The change dramatically of degree, entire overhaul in scale removal process only have regenerative chamber part to contact cooling with air, and accumulation of heat room temperature can be kept
At 600 DEG C or more.The mode that brick wall brick manually takes is removed compared to from carbonization chamber, intermediate quirk need to be post-processed in coke pushing, furnace wall
Temperature need to drop to 500 DEG C hereinafter, (117 DEG C, 163 DEG C, 180~270 DEG C, 573 DEG C of silica brick crystalline form inversion point) damages furnace wall silica brick
Wound is big, and also needs customization zero thermal expansion brick, influences coke oven service life.
(3) cleaning is thorough, high treating effect.In terms of the heating effect handled using the present invention, fire path temperature raising exists
200 DEG C or more, the requirement of technique is reached.Simultaneously because being cleared up regenerator lattice brick, regenerative chamber resistance is reduced,
Be conducive to the adjusting and control of temperature.
To show beneficial effects of the present invention, tested in JN60 Formed Coke Furnace:
Experiment condition: 2 × 50 hole JN60 Formed Coke Furnaces, furnace life 16 years, the turnaround time 21 hours, normal temperature: pusher side 1230
℃;1290 DEG C of coke side.
According to the flame excessive internal heat situation of observation and temperature data is measured, has absolutely proved the effect of chute cleaning of the present invention,
Meet the requirement of coke oven heating system.
Specific embodiment
Below with reference to embodiment, the present invention is described in further detail.
Embodiment 1
The method that one of the present embodiment clears up coke oven chute, is made of the following steps:
One, preliminary preparation
(1) according to different coke oven models, required checker brick is transported to coke oven region in advance and are placed on two layers of coke oven
Between the arid region of platform or end stand;
(2) prepare fibrofelt and mineral flax heat-insulating heat-preserving material, prepare 3~4 sets of proximity suit;
(3) prepare cleaning outfit;
Two, cooling is handled
(1) stewing oven carbonization chamber and buffering furnace are set: when a wherein chute for coke oven combustion chamber need to be cleared up, according to duplex fire
The characteristics of road, sets stewing for the adjacent previous carbonization chamber in the combustion chamber if combustion chamber quirk is eyes where the chute
Oven carbonization chamber, the adjacent carbonization chamber in stewing oven carbonization chamber two sides are set as buffering furnace, and oven carbonization chamber and buffering furnace are boiled in a covered pot over a slow fire during cleaning not
It comes out of the stove;If combustion chamber quirk is simple eye where the chute, stewing furnace charcoal is set by the adjacent the latter carbonization chamber in the combustion chamber
Change room, the adjacent carbonization chamber in stewing oven carbonization chamber two sides is set as buffering furnace, and oven carbonization chamber is boiled in a covered pot over a slow fire during cleaning and buffering furnace is not come out of the stove;
(2) according to discharging plan, two side combusion chamber's coal gas of furnace heat (batch) number plus-minus opening of cock will be buffered in coking mid-term and will be adjusted
For 1/2 aperture;
(3) coal gas for closing stewing two side combusion chamber of oven carbonization chamber adds and subtracts cock, cuts off coal gas, and the time controls in the carbonization chamber
4~6 hours after coalingging;
(4) waste gas system: will clear up the corresponding shutter cokery side exhaust gas disc air inlet door guard plate of chute and covered with asbestic blanket,
And exhaust gas stone roller chain is disengaged, fall its whole;
Three, coke oven chute is dredged
(1) it according to combustion chamber quirk position need to be cleared up, removes and drops down burnt plate and regenerator top backplate, general 6 meters of coke ovens 1
The flue of combustion chamber 32,1~16# flue remove pusher side, and 17~32# flue removes coke side;If burning where the chute
Room quirk is eyes, then removes the combustion chamber and correspond to regenerator top backplate and drop down burnt plate, if combustion chamber quirk where the chute
To be simple eye, then remove the combustion chamber and correspond to the latter regenerator top backplate and drop down burnt plate.
(2) it seals off wall: because regenerative chamber is separated two parts by regenerative chamber list wall, first removing the protection wall of regenerative chamber side, take lattice
Sub- brick, side checker brick use fiber felt seal after taking, then start to remove the protection wall of the regenerative chamber other side, regenerative chamber metope temperature
Remain 600~670 DEG C;
(3) checker brick are taken: using mode is successively removed from outer to inner from top to bottom, successively being put to designated position, by iron
Skin and 20mm fibrofelt are taped against on regenerator lattice brick, prevent the sundries such as brick from falling to regenerative chamber, and checker brick take out clear to needing
It manages at chute mouth, regenerator top height 1500mm at remaining checker brick, width 390mm, space meets personnel's prune job
Demand;
(4) regenerative chamber wall heat preservation: being pasted on the furnace wall of regenerative chamber two sides with 20mm fibrofelt and regenerator top thermal insulation separation
Heat, operating personnel, which has dressed proximity suit, can enter progress prune job;
(5) it dredges chute: refuse collecting case and collecting vessel placement need to be cleared up into chute mouth lower part, clear up chute with tool,
After cleaning out, surrounding sundries is purged completely with compressed air from peephole, and the refuse collecting of cleaning is cleared up, transported
Regenerative chamber;
(6) checker brick are put: to the end of accumulation of heat chamber clean, the thermal insulation material at regenerative chamber wall and top are removed, by checker brick
It successively puts neat and fixes, damaged checker brick do not use, and fill up new checker brick;
(7) build regenerator sealing wall: checker brick, which are put, to be finished, and builds protection wall, and wipe thermal insulation material, regenerative chamber operation finishes;
(8) burnt plate and regenerator top backplate are dropped down in installation;
Four, it heating treatment and resumes production
(1) waste gas system: restore cokery side exhaust gas stone roller, and sundries around exhaust gas disc is cleaned up, remove air inlet door shield
Asbestos pad on plate;
(2) it opens stewing two side combusion chamber's coal gas of oven carbonization chamber and adds and subtracts cock: opening 1/2 after first opening 1/3,1 hour, after
Standard-sized sheet after 1 hour;
(3) it opens the buffering side combusion chamber Lu Liang coal gas and adds and subtracts cock: two side combusion chamber's coal gas of oven carbonization chamber plus-minus rotation to be boiled in a covered pot over a slow fire
After plug is opened, the buffering side combusion chamber Lu Liang coal gas is added and subtracted into cock standard-sized sheet;
(4) coke pushing and coke pushing plan after layout cleaning: by the coke of buffering oven carbonization chamber and stewing oven carbonization chamber after cleaning
Charcoal is released, and gradually writing paper is returned to return to normal production.
Tool of the present invention is straight peen drill rod, spiral head drill rod, small grafter, fortune brick slideway, takes off hook, service chamber and collection
Bucket.
Claims (2)
1. a kind of method for clearing up coke oven chute, it is characterised in that: be made of the following steps:
One, preliminary preparation
(1) according to different coke oven models, platform between required checker brick are transported to coke oven region in advance and are placed on two layers of coke oven
Or the arid region of end stand;
(2) prepare fibrofelt and mineral flax heat-insulating heat-preserving material, prepare 3~4 sets of proximity suit;
(3) prepare cleaning outfit;
Two, cooling is handled
(1) stewing oven carbonization chamber and buffering furnace are set: when a wherein chute for coke oven combustion chamber need to be cleared up, according to twinflue
Feature sets stewing furnace charcoal for the adjacent previous carbonization chamber in the combustion chamber if combustion chamber quirk where the chute is eyes
Change room, the adjacent carbonization chamber in stewing oven carbonization chamber two sides is set as buffering furnace, and oven carbonization chamber is boiled in a covered pot over a slow fire during cleaning and buffering furnace is not come out of the stove;
If combustion chamber quirk is simple eye where the chute, stewing oven carbonization chamber is set by the adjacent the latter carbonization chamber in the combustion chamber,
The adjacent carbonization chamber in stewing oven carbonization chamber two sides is set as buffering furnace, and oven carbonization chamber is boiled in a covered pot over a slow fire during cleaning and buffering furnace is not come out of the stove;
(2) according to discharging plan, two side combusion chamber's coal gas of furnace heat (batch) number plus-minus opening of cock will be buffered in coking mid-term and is adjusted to 1/2
Aperture;
(3) coal gas for closing stewing two side combusion chamber of oven carbonization chamber adds and subtracts cock, cuts off coal gas, and time control is coaling in the carbonization chamber
4~6 hours afterwards;
(4) waste gas system: the corresponding shutter cokery side exhaust gas disc air inlet door guard plate of chute will be cleared up and covered with asbestic blanket, and taken off
Exhaust gas stone roller chain is opened, its whole is fallen;
Three, coke oven chute is dredged
(1) according to that need to clear up combustion chamber quirk position, burnt plate and regenerator top backplate, 1~16# quirk demolition machine are dropped down in dismounting
Side, 17~32# quirk remove coke side;If combustion chamber quirk is eyes where the chute, removes the combustion chamber and correspond to regenerative chamber
Top coversheet and drop down burnt plate, if combustion chamber quirk where the chute be it is simple eye, remove the combustion chamber and correspond to the latter regenerative chamber
Top coversheet and drop down burnt plate;
(2) it seals off wall: because regenerative chamber is separated two parts by regenerative chamber list wall, first removing the protection wall of regenerative chamber side, take checker brick,
Side checker brick use fiber felt seal after taking, then start to remove the protection wall of the regenerative chamber other side, and regenerative chamber metope temperature is kept
It is 600~670 DEG C;
(3) take checker brick: using mode is successively removed from outer to inner from top to bottom, successively putting to designated position, by iron sheet and
20mm fibrofelt is taped against on regenerator lattice brick, prevents brick from falling to regenerative chamber, and checker brick take out to need to clear up at chute mouth,
Regenerator top height 1500mm at remaining checker brick, width 390mm, space meets personnel's prune job demand;
(4) regenerative chamber wall heat preservation: being pasted on the furnace wall of regenerative chamber two sides with 20mm fibrofelt and regenerator top insulation, is made
Industry personnel have dressed proximity suit and have entered carry out prune job;
(5) it dredges chute: refuse collecting case and collecting vessel placement need to be cleared up into chute mouth lower part, clear up chute, cleaning with tool
After, surrounding sundries is purged completely with compressed air from peephole, and the refuse collecting of cleaning is cleared up, transports accumulation of heat
Room;
(6) checker brick are put: to the end of accumulation of heat chamber clean, removing the thermal insulation material at regenerative chamber wall and top, successively by checker brick
It puts neat and fixes, damaged checker brick do not use, and fill up new checker brick;
(7) build regenerator sealing wall: checker brick, which are put, to be finished, and builds protection wall, and wipe thermal insulation material, regenerative chamber operation finishes;
(8) burnt plate and regenerator top backplate are dropped down in installation;
Four, it heating treatment and resumes production
(1) waste gas system: restoring cokery side exhaust gas stone roller, and sundries around exhaust gas disc cleaned up, and removes on air inlet door guard plate
Asbestos pad;
(2) it opens stewing two side combusion chamber's coal gas of oven carbonization chamber and adds and subtracts cock: opening 1/2 after first opening 1/3,1 hour, it is small after 1
When after standard-sized sheet;
(3) open the buffering side combusion chamber Lu Liang coal gas and add and subtract cock: two side combusion chamber's coal gas of oven carbonization chamber plus-minus cock to be boiled in a covered pot over a slow fire is opened
The buffering side combusion chamber Lu Liang coal gas is added and subtracted cock standard-sized sheet by Qi Hou;
(4) coke pushing and coke pushing plan after layout cleaning: the coke of buffering oven carbonization chamber and stewing oven carbonization chamber after cleaning is pushed away
Out, gradually writing paper is returned to return to normal production.
2. a kind of method for clearing up coke oven chute according to claim 1, it is characterised in that: the tool is straight peen steel
Pricker, small grafter, fortune brick slideway, takes off hook, service chamber and collecting vessel at spiral head drill rod.
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CN201611128664.1A CN106753449B (en) | 2016-12-09 | 2016-12-09 | A method of cleaning coke oven chute |
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CN110117494A (en) * | 2018-02-07 | 2019-08-13 | 五冶集团上海有限公司 | A kind of method for cleaning of 5.5 meters of tamping coke furnaces chute mouth tamper |
CN108410481B (en) * | 2018-03-28 | 2024-03-22 | 宣化钢铁集团有限责任公司 | Coke oven vertical fire channel dredging cleaner and dredging method |
CN110317617A (en) * | 2018-03-29 | 2019-10-11 | 河北中煤旭阳焦化有限公司 | A kind of cleaning plant and method for cleaning for coke oven vertical flame path chute area |
CN109837102B (en) * | 2019-03-25 | 2020-11-03 | 五冶集团上海有限公司 | Method for quickly removing refractory masonry of large coke oven body |
CN110079338B (en) * | 2019-04-30 | 2021-01-19 | 五冶集团上海有限公司 | Coke oven body dismantling and rebuilding method |
CN111647413B (en) * | 2020-06-23 | 2023-07-14 | 大连华锐重工焦炉车辆设备有限公司 | Universal coke-dripping knife cleaning device for coke oven machinery and use method thereof |
CN114790395B (en) * | 2021-01-26 | 2023-12-29 | 山西太钢不锈钢股份有限公司 | Thermal insulation process for thermal state overhaul of coke oven regenerator |
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JP4122885B2 (en) * | 2002-07-31 | 2008-07-23 | 住友金属工業株式会社 | Coke oven furnace cleaner |
CN101348723A (en) * | 2008-09-12 | 2009-01-21 | 中国第十七冶金建设有限公司 | Coke oven chute cleaning technology |
CN101974339B (en) * | 2010-11-03 | 2013-04-03 | 芜湖新兴铸管有限责任公司 | Repairing method of coking chamber of coke oven by using silica bricks |
JP2014234466A (en) * | 2013-06-04 | 2014-12-15 | 住友重機械プロセス機器株式会社 | Furnace cover-washing equipment of coke oven |
CN203683456U (en) * | 2013-12-10 | 2014-07-02 | 中国十七冶集团有限公司 | Coke oven building dust collecting and cleaning device |
CN203833877U (en) * | 2014-05-05 | 2014-09-17 | 陕西陕煤黄陵矿业有限公司 | Coke oven chute cleaning tool |
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