CN106753449A - A kind of method for clearing up coke oven chute - Google Patents
A kind of method for clearing up coke oven chute Download PDFInfo
- Publication number
- CN106753449A CN106753449A CN201611128664.1A CN201611128664A CN106753449A CN 106753449 A CN106753449 A CN 106753449A CN 201611128664 A CN201611128664 A CN 201611128664A CN 106753449 A CN106753449 A CN 106753449A
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- Prior art keywords
- regenerator
- chute
- chamber
- carbonization chamber
- coke oven
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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 method for clearing up coke oven chute, it belongs to a kind of method for clearing up coke oven chute blockage.Big, big on the damage of furnace wall and influence coke oven service life the technical problem of the workload that the present invention mainly solves the method presence that existing coke oven treatment chute is blocked.The technical solution adopted by the present invention is：A kind of method for clearing up coke oven chute, it is made up of the following steps：First, preliminary preparation；2nd, cooling treatment；3rd, coke oven chute is dredged；4th, hyperthermic treatment and resume production.The present invention clears up chute from lower to upper from regenerator top, operational security is improved, and coking chamber wall silica brick will not be caused damage because of cooling and intensification, will not more destroy furnace wall silica brick, and treatment after-burner quirk can smoothly get angry, discharge waste gas, the demand that coke oven is uniformly heated is met.
Description
Technical field
The present invention relates to a kind of method for clearing up coke oven chute, it belongs to a kind of method for clearing up coke oven chute blockage.
Background technology
Coke oven is that coke-oven plant is main, most critical equipment, and investment is big, and projected life is more than 25 years.But coke oven with
The growth in furnace life, masonry is aging, frequently opening and closing fire door cold air eating temperature violent change punching when for a long time by mechanical force, operation
Hit, the influence of thermal stress effect, degrading occurs in carbonization chamber silica brick surface, unfilled corner, crack occurs in furnace wall, silica brick intensity decreases are broken
Queen closer, pug are fallen into combustion chamber, remix the coal ash accumulated in production for many years, cause chute area to block not smooth, air-flow fortune
Row is obstructed, and air can not smoothly reach bottom of combustion chamber, and waste gas can not be discharged smoothly, cause part quirk normally to add
Heat, charge of coke uneven ripening, Coke Quality makes a big impact.
The method of current chute plugging handling has：Disclosed from furnace roof drill rod, wheat head hammer drill is got through, air sweeping method, or even
Remove that carbonization chamber wall brick is artificial the method such as to take.Disclosed from furnace roof drill rod, wheat head hammer drill is beaten, air sweeping method can only process blocking
Slight chute, blocking is serious cannot to be processed, and remove the artificial method workload for taking of carbonization chamber wall brick greatly, and carbonization chamber is also
It is big by cooling, temperature-rise period, the damage to furnace wall, influence coke oven service life.
The content of the invention
Workload that the method blocked present invention aim to address existing coke oven treatment chute is present is big, to the damage of furnace wall
A kind of bad big and influence coke oven service life technical problem, there is provided method of cleaning coke oven chute.
In order to solve the above technical problems, the technical solution adopted by the present invention is：
A kind of method for clearing up coke oven chute, it is made up of the following steps：
First, preliminary preparation
(1) according to different coke oven models, required checker brick is transported to coke oven region in advance and two layers of coke oven is placed on
Between platform or end stand arid region；
(2) prepare fibrofelt and mineral flax heat-insulating heat-preserving material, prepare 3~4 sets of proximity suit；
(3) cleaning outfit is prepared；
2nd, cooling treatment
(1) stewing oven carbonization chamber and buffering stove are set：When coke oven combustion chamber is when wherein a chute need to be cleared up, according to duplex fire
The characteristics of road, if combustion chamber quirk is eyes where the chute, the adjacent previous carbonization chamber in the combustion chamber is set to boil in a covered pot over a slow fire
Oven carbonization chamber, the adjacent carbonization chamber in stewing oven carbonization chamber both sides is set to buffer stove, and oven carbonization chamber and buffering stove are boiled in a covered pot over a slow fire during cleaning not
Come out of the stove；If combustion chamber quirk where the chute is simple eye, latter adjacent carbonization chamber of the combustion chamber is set to stewing stove charcoal
Change room, the adjacent carbonization chamber in stewing oven carbonization chamber both sides is set to buffer stove, oven carbonization chamber is boiled in a covered pot over a slow fire during cleaning and buffering stove is not come out of the stove；
(2) according to discharging plan, the two side combusion chambers coal gas plus-minus opening of cock regulation of stove heat (batch) number will be buffered in coking mid-term
It is 1/2 aperture；
(3) the coal gas plus-minus cock of the stewing side combusion chamber of oven carbonization chamber two is closed, coal gas is cut off, time control is in the carbonization chamber
4~6 hours after coalingging；
(4) waste gas system：The corresponding shutter cokery side exhaust gas disc air intake door guard plate of chute will be cleared up to be covered with asbestic blanket,
And waste gas stone roller chain is disengaged, fall its whole；
3rd, 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# quirks are removed
Pusher side, 17~32# quirks remove coke side；If combustion chamber quirk is eyes where the chute, combustion chamber correspondence accumulation of heat is removed
Room top coversheet and burnt plate is dropped down, if combustion chamber quirk is simple eye where the chute, remove the combustion chamber latter accumulation of heat of correspondence
Room top coversheet and drop down burnt plate；
(2) wall is sealed off：Because regenerator is separated two parts by regenerator list wall, the envelope wall of regenerator side is first removed, take lattice
Sub- brick, side checker brick use fiber felt seal after taking, then start to remove the envelope wall of regenerator opposite side, regenerator metope temperature
Remain 600~670 DEG C；
(3) checker brick are taken：Using mode is from outer to inner successively removed from top to bottom, specified location is successively put, by iron
Skin and 20mm fibrofelts are taped against on regenerator lattice brick, prevent the debris such as fragment of brick from falling to regenerator, and checker brick are taken out to be needed clearly
At reason chute mouthful, height 1500mm at regenerator top to remaining checker brick, width 390mm, space meets personnel's prune job
Demand；
(4) regenerator wall insulation：It is pasted onto on the furnace wall of regenerator both sides with 20mm fibrofelts and regenerator top thermal insulation separation
Heat, operating personnel has dressed proximity suit and has carried out prune job；
(5) chute is dredged：Refuse collecting case and collecting vessel are placed need to clear up chute mouthful bottom, and chute is cleared up with instrument,
After cleaning out, surrounding debris are purged totally with compressed air from peephole, and the refuse collecting cleaning that will be cleared up, transport
Regenerator；
(6) checker brick are put：Treat that accumulation of heat chamber clean terminates, the insulation material at regenerator wall and top is removed, by checker brick
Put successively neat and fix, damaged checker brick are not used, and fill up new checker brick；
(7) regenerator sealing wall is built：Checker brick are put and are finished, and build envelope wall, and wipe insulation material, and regenerator operation is finished；
(8) install and drop down burnt plate and regenerator top backplate；
4th, hyperthermic treatment and resume production
(1) waste gas system：Recover cokery side waste gas stone roller, and debris around exhaust gas disc are cleaned up, remove air intake door shield
Asbestos pad on plate；
(2) the two side combusion chambers coal gas plus-minus cock of stewing oven carbonization chamber is opened：1/2 is opened after first opening 1/3,1 hour, after
Standard-sized sheet after 1 hour；
(3) the two side combusion chambers coal gas plus-minus cock of buffering heat (batch) number is opened：The side combusion chamber's coal gas plus-minus of oven carbonization chamber to be boiled in a covered pot over a slow fire two
After cock is opened, by the side combusion chamber's coal gas plus-minus cock standard-sized sheet of buffering heat (batch) number two；
(4) coke pushing and coke pushing plan after layout cleaning：By the buffering oven carbonization chamber after cleaning and Jiao of stewing oven carbonization chamber
Charcoal is released, and progressively returns writing paper to return to normal production.
The instrument is straight peen drill rod, spiral head drill rod, small grafter, fortune brick slideway, takes off structure, service chamber and collecting vessel.
The present invention uses above-mentioned technical proposal, and chute is cleared up from lower to upper from regenerator top, and operational security is improved, no
Coking chamber wall silica brick can be caused damage because of cooling and intensification, will not more destroy furnace wall silica brick, and treatment after-burner quirk
Can smoothly get angry, discharge waste gas, meet the demand that coke oven is uniformly heated, solve the method that existing coke oven treatment chute is blocked
Big, big on the damage of furnace wall and influence coke oven service life the technical problem of the workload of presence.Compared with background technology, this hair
It is bright with following advantages：
(1) clearance time is short.From in terms of the time of maintenance cleaning, 6 meters of 6 quirks of coke oven, about 18 hours repair times, phase
Than removing the artificial mode for taking of brick wall brick from carbonization chamber, the time of maintenance, the time was shorter more than 60 hours.
(2) damage to coking furnace shaft is small.Coke oven regenerator writes brick material for clay brick, the temperature being adapted to
The drastically change of degree, only regenerator part lowers the temperature with air contact in whole maintenance scale removal process, and accumulation of heat room temperature can keep
More than 600 DEG C.The artificial mode for taking of brick wall brick is removed compared to from carbonization chamber, middle quirk need to be post-processed in coke pushing, furnace wall
Temperature need to drop to less than 500 DEG C, and (117 DEG C, 163 DEG C, 180~270 DEG C, 573 DEG C of silica brick crystalline form inversion point) is damaged to furnace wall silica brick
Wound is big, and also needs to customize zero thermal expansion brick, influences coke oven service life.
(3) clear up thorough, high treating effect.From in terms of the heating effect using present invention treatment, fire path temperature is improved and existed
More than 200 DEG C, the requirement of technique is reached.Simultaneously because being cleared up regenerator lattice brick, regenerator resistance is reduced,
Be conducive to the regulation and control of temperature.
To show beneficial effects of the present invention, tested in JN60 Formed Coke Furnaces：
Experiment condition：2 × 50 hole JN60 Formed Coke Furnaces, 16 years furnace life, 21 hours turnaround time, normal temperature：Pusher side 1230
℃；1290 DEG C of coke side.
Flame excessive internal heat situation according to observation and temperature data is measured, has absolutely proved the effect of chute of the present invention cleaning,
Meet the requirement of coke oven heating system.
Specific embodiment
With reference to embodiment, the present invention is described in further detail.
Embodiment 1
A kind of method of the cleaning coke oven chute in the present embodiment, it is made up of the following steps：
First, preliminary preparation
(1) according to different coke oven models, required checker brick is transported to coke oven region in advance and two layers of coke oven is placed on
Between platform or end stand arid region；
(2) prepare fibrofelt and mineral flax heat-insulating heat-preserving material, prepare 3~4 sets of proximity suit；
(3) cleaning outfit is prepared；
2nd, cooling treatment
(1) stewing oven carbonization chamber and buffering stove are set：When coke oven combustion chamber is when wherein a chute need to be cleared up, according to duplex fire
The characteristics of road, if combustion chamber quirk is eyes where the chute, the adjacent previous carbonization chamber in the combustion chamber is set to boil in a covered pot over a slow fire
Oven carbonization chamber, the adjacent carbonization chamber in stewing oven carbonization chamber both sides is set to buffer stove, and oven carbonization chamber and buffering stove are boiled in a covered pot over a slow fire during cleaning not
Come out of the stove；If combustion chamber quirk where the chute is simple eye, latter adjacent carbonization chamber of the combustion chamber is set to stewing stove charcoal
Change room, the adjacent carbonization chamber in stewing oven carbonization chamber both sides is set to buffer stove, oven carbonization chamber is boiled in a covered pot over a slow fire during cleaning and buffering stove is not come out of the stove；
(2) according to discharging plan, the two side combusion chambers coal gas plus-minus opening of cock regulation of stove heat (batch) number will be buffered in coking mid-term
It is 1/2 aperture；
(3) the coal gas plus-minus cock of the stewing side combusion chamber of oven carbonization chamber two is closed, coal gas is cut off, time control is in the carbonization chamber
4~6 hours after coalingging；
(4) waste gas system：The corresponding shutter cokery side exhaust gas disc air intake door guard plate of chute will be cleared up to be covered with asbestic blanket,
And waste gas stone roller chain is disengaged, fall its whole；
3rd, coke oven chute is dredged
(1) according to that need to clear up combustion chamber quirk position, burnt plate and regenerator top backplate, general 6 meters of coke ovens 1 are dropped down in dismounting
The flue of combustion chamber 32,1~16# flues remove pusher side, and 17~32# flues remove coke side；If burning where the chute
Room quirk is eyes, then remove combustion chamber correspondence regenerator top backplate and drop down burnt plate, if combustion chamber quirk where the chute
For simple eye, then remove the combustion chamber latter regenerator top backplate of correspondence and drop down burnt plate.
(2) wall is sealed off：Because regenerator is separated two parts by regenerator list wall, the envelope wall of regenerator side is first removed, take lattice
Sub- brick, side checker brick use fiber felt seal after taking, then start to remove the envelope wall of regenerator opposite side, regenerator metope temperature
Remain 600~670 DEG C；
(3) checker brick are taken：Using mode is from outer to inner successively removed from top to bottom, specified location is successively put, by iron
Skin and 20mm fibrofelts are taped against on regenerator lattice brick, prevent the debris such as fragment of brick from falling to regenerator, and checker brick are taken out to be needed clearly
At reason chute mouthful, height 1500mm at regenerator top to remaining checker brick, width 390mm, space meets personnel's prune job
Demand；
(4) regenerator wall insulation：It is pasted onto on the furnace wall of regenerator both sides with 20mm fibrofelts and regenerator top thermal insulation separation
Heat, operating personnel has dressed proximity suit and just can carry out prune job；
(5) chute is dredged:Refuse collecting case and collecting vessel are placed need to clear up chute mouthful bottom, and chute is cleared up with instrument,
After cleaning out, surrounding debris are purged totally with compressed air from peephole, and the refuse collecting cleaning that will be cleared up, transport
Regenerator；
(6) checker brick are put：Treat that accumulation of heat chamber clean terminates, the insulation material at regenerator wall and top is removed, by checker brick
Put successively neat and fix, damaged checker brick are not used, and fill up new checker brick；
(7) regenerator sealing wall is built：Checker brick are put and are finished, and build envelope wall, and wipe insulation material, and regenerator operation is finished；
(8) install and drop down burnt plate and regenerator top backplate；
4th, hyperthermic treatment and resume production
(1) waste gas system：Recover cokery side waste gas stone roller, and debris around exhaust gas disc are cleaned up, remove air intake door shield
Asbestos pad on plate；
(2) the two side combusion chambers coal gas plus-minus cock of stewing oven carbonization chamber is opened：1/2 is opened after first opening 1/3,1 hour, after
Standard-sized sheet after 1 hour；
(3) the coal gas plus-minus cock of buffering Lu Liang side combusion chambers is opened：Oven carbonization chamber to be boiled in a covered pot over a slow fire two side combusion chambers coal gas plus-minus rotation
After plug is opened, by buffering Lu Liang side combusion chambers coal gas plus-minus cock standard-sized sheet；
(4) coke pushing and coke pushing plan after layout cleaning：By the buffering oven carbonization chamber after cleaning and Jiao of stewing oven carbonization chamber
Charcoal is released, and progressively returns writing paper to return to normal production.
Instrument of the present invention is straight peen drill rod, spiral head drill rod, small grafter, fortune brick slideway, takes off structure, service chamber and collection
Bucket.
Claims (2)
1. it is a kind of clear up coke oven chute method, it is characterised in that：It is made up of the following steps：
First, preliminary preparation
(1) according to different coke oven models, required checker brick are transported to coke oven region and platform between being placed on two layers of coke oven in advance
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) cleaning outfit is prepared；
2nd, cooling treatment
(1) stewing oven carbonization chamber and buffering stove are set：When coke oven combustion chamber is when wherein a chute need to be cleared up, according to twinflue
Feature, if combustion chamber quirk where the chute is eyes, stewing stove charcoal is set to by the adjacent previous carbonization chamber in the combustion chamber
Change room, the adjacent carbonization chamber in stewing oven carbonization chamber both sides is set to buffer stove, oven carbonization chamber is boiled in a covered pot over a slow fire during cleaning and buffering stove is not come out of the stove；
If combustion chamber quirk where the chute is simple eye, latter adjacent carbonization chamber of the combustion chamber is set to stewing oven carbonization chamber,
The adjacent carbonization chamber in stewing oven carbonization chamber both sides is set to buffer stove, oven carbonization chamber is boiled in a covered pot over a slow fire during cleaning and buffering stove is not come out of the stove；
(2) according to discharging plan, will buffer the side combusion chamber's coal gas plus-minus opening of cock of stove heat (batch) number two in coking mid-term and be adjusted to 1/2
Aperture；
(3) the coal gas plus-minus cock of the stewing side combusion chamber of oven carbonization chamber two is closed, coal gas is cut off, 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 intake door guard plate of chute will be cleared up to be covered with asbestic blanket, and taken off
Waste gas stone roller chain is driven, its whole is fallen；
3rd, 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# quirks remove machine
Side, 17~32# quirks remove coke side；If combustion chamber quirk is eyes where the chute, combustion chamber correspondence regenerator is removed
Top coversheet and burnt plate is dropped down, if combustion chamber quirk is simple eye where the chute, remove the combustion chamber latter regenerator of correspondence
Top coversheet and drop down burnt plate；
(2) wall is sealed off：Because regenerator is separated two parts by regenerator list wall, the envelope wall of regenerator side is first removed, takes checker brick,
Side checker brick use fiber felt seal after taking, then start to remove the envelope wall of regenerator opposite side, and regenerator metope temperature keeps
It is 600~670 DEG C；
(3) checker brick are taken：Using mode is from outer to inner successively removed from top to bottom, successively put specified location, by iron sheet and
20mm fibrofelts are taped against on regenerator lattice brick, prevent the debris such as fragment of brick from falling to regenerator, and checker brick are taken out to need to be cleared up tiltedly
At road junction, height 1500mm at regenerator top to remaining checker brick, width 390mm, space meets personnel's prune job demand；
(4) regenerator wall insulation：It is pasted onto on the furnace wall of regenerator both sides with 20mm fibrofelts and regenerator top insulation, is made
The good proximity suit of industry persons wear carries out prune job；
(5) chute is dredged：Refuse collecting case and collecting vessel are placed need to clear up chute mouthful bottom, and chute, cleaning are cleared up with instrument
After finishing, surrounding debris are purged totally with compressed air from peephole, and the refuse collecting cleaning that will be cleared up, transport accumulation of heat
Room；
(6) checker brick are put：Treat that accumulation of heat chamber clean terminates, remove the insulation material at regenerator wall and top, by checker brick successively
Put neat and fix, damaged checker brick are not used, and fill up new checker brick；
(7) regenerator sealing wall is built：Checker brick are put and are finished, and build envelope wall, and wipe insulation material, and regenerator operation is finished；
(8) install and drop down burnt plate and regenerator top backplate；
4th, hyperthermic treatment and resume production
(1) waste gas system：Recover cokery side waste gas stone roller, and debris around exhaust gas disc are cleaned up, remove on air intake door guard plate
Asbestos pad；
(2) the two side combusion chambers coal gas plus-minus cock of stewing oven carbonization chamber is opened：1/2 is opened after first opening 1/3,1 hour, it is small after 1
When after standard-sized sheet；
(3) the coal gas plus-minus cock of buffering Lu Liang side combusion chambers is opened：The side combusion chamber's coal gas plus-minus cock of oven carbonization chamber to be boiled in a covered pot over a slow fire two is opened
Qi Hou, by buffering Lu Liang side combusion chambers coal gas plus-minus cock standard-sized sheet；
(4) coke pushing and coke pushing plan after layout cleaning：Buffering oven carbonization chamber and the coke of stewing oven carbonization chamber after cleaning is pushed away
Go out, progressively return writing paper to return to normal production.
2. it is according to claim 1 it is a kind of clear up coke oven chute method, it is characterised in that：The instrument is straight peen steel
Pricker, spiral head drill rod, small grafter, fortune brick slideway, take off structure, service chamber and collecting vessel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611128664.1A CN106753449B (en) | 2016-12-09 | 2016-12-09 | A method of cleaning coke oven chute |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611128664.1A CN106753449B (en) | 2016-12-09 | 2016-12-09 | A method of cleaning coke oven chute |
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| Publication Number | Publication Date |
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| CN106753449A true CN106753449A (en) | 2017-05-31 |
| CN106753449B CN106753449B (en) | 2019-11-05 |
Family
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| CN201611128664.1A Expired - Fee Related CN106753449B (en) | 2016-12-09 | 2016-12-09 | A method of cleaning coke oven chute |
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| CN108410481A (en) * | 2018-03-28 | 2018-08-17 | 宣化钢铁集团有限责任公司 | A kind of coke oven vertical flame path dredging sweeper and dredging method |
| CN109837102A (en) * | 2019-03-25 | 2019-06-04 | 五冶集团上海有限公司 | The quick method for dismounting of capacity coke oven ontology refractory masonry |
| CN110079338A (en) * | 2019-04-30 | 2019-08-02 | 五冶集团上海有限公司 | A kind of coking furnace shaft dismounting method for reconstructing |
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| CN114790395A (en) * | 2021-01-26 | 2022-07-26 | 山西太钢不锈钢股份有限公司 | Heat preservation process for thermal state overhaul of coke oven regenerator |
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| CN108410481A (en) * | 2018-03-28 | 2018-08-17 | 宣化钢铁集团有限责任公司 | A kind of coke oven vertical flame path dredging sweeper and dredging method |
| 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 |
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| CN109837102A (en) * | 2019-03-25 | 2019-06-04 | 五冶集团上海有限公司 | The quick method for dismounting of capacity coke oven ontology refractory masonry |
| 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 |
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| CN114790395A (en) * | 2021-01-26 | 2022-07-26 | 山西太钢不锈钢股份有限公司 | Heat preservation process for thermal state overhaul of coke oven regenerator |
| 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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