CN105694920B - Coke oven regenerator silicon carbide brick wall string leaks method for repairing and mending in production process - Google Patents
Coke oven regenerator silicon carbide brick wall string leaks method for repairing and mending in production process Download PDFInfo
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- CN105694920B CN105694920B CN201610229208.XA CN201610229208A CN105694920B CN 105694920 B CN105694920 B CN 105694920B CN 201610229208 A CN201610229208 A CN 201610229208A CN 105694920 B CN105694920 B CN 105694920B
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- silicon carbide
- leak
- string
- carbide brick
- brick wall
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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
- C10B29/00—Other details of coke ovens
- C10B29/06—Preventing or repairing leakages of the brickwork
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Furnace Housings, Linings, Walls, And Ceilings (AREA)
Abstract
The invention discloses coke oven regenerator silicon carbide brick wall strings in a kind of production process to leak method for repairing and mending, it is characterised in that：Include the following steps completion：Including accurately assert position, the carbonization chamber coking mid-term later stage being selected to carry out；When repairing, corresponding branch gas tube is first blocked, the air leak position observed the string and leak silicon carbide brick wall is inputted with compressed air, the aperture plate on branch gas tube is sealed into through-hole with blind plate, then macroporous plate box is changed into the orifice plate box of a diameter of 38mm；Replace the charing silica brick that string leak is burnt out；Gunite；Restore the combustion chamber heating gas：Complete the repairing of the regenerative chamber silicon carbide brick wall string leak.Coke oven regenerator silicon carbide brick wall string leaks method for repairing and mending in the production process, it can carry out in process of production, it is easy to operate, the time is short, reliable and stable, especially suitable for regenerative chamber silicon carbide brick wall string leak repair, and can be greatly lowered labor intensity, improve production efficiency.More importantly furnace wall brick is obtained fabulous to protection.
Description
Technical field
The present invention relates to a kind of improvement of coke oven technique, specifically one kind being exclusively used in coke oven storage in production process
Hot cell silicon carbide brick wall string leaks method for repairing and mending.
Background technology
Coke oven is a kind of stove being built by refractory brick and refractory block, including burner 1, combustion chamber 2, carbonizing chamber 3, accumulation of heat
Room 4, and be connected with chimney by flue；The regenerative chamber 4 includes regenerator sealing wall 41, checker brick 42, branch gas tube 8, coal gas
Branch pipe 8 side by side be equipped with first to the 7th, the lower part of every branch gas tube 8 be equipped with aperture plate 14, the lower end of branch gas tube 8
It is connected to gas transverse pipe 5, the both sides of branch gas tube 8 are regenerator sealing wall 41 and checker brick 42, the upper end of every branch gas tube 8
It is equipped with silicon carbide brick wall 6, and extends to bottom in corresponding combustion chamber 2, the upper end of checker brick 42 is accessed by chute 43 to be carbonized
Silica brick wall 6；Combustion chamber 2 includes the first to the 7th flue 7 side by side, and is corresponded with the branch gas tube of regenerative chamber 48；Phase
It is carbonizing chamber 3 between adjacent flue 7；Gas transverse pipe 5 is connected to by communicating pipe 10 with coal gas supervisor 9, at the middle part of communicating pipe 10
Equipped with macroporous plate box 11；The aperture of the macroporous plate box 11 is 46mm；（As shown in Figure 1）.Currently, this regenerative chamber silicon carbide brick
Often occurring string leakage phenomenon between wall, string leak is usually happened at first to fourth branch gas tube, 8 corresponding silicon carbide metope,
It herein after the string leakage of regenerative chamber silicon carbide brick wall, is such as repaired not in time, will continue to expand the leakage of regenerative chamber silicon carbide brick wall string
Area leads to the checker brick for burning out regenerative chamber, damages furnace body, influences coke oven heating, wastes coal gas, influences to produce.So required
Regenerative chamber silicon carbide brick wall string leak is repaired in time, not affect the normal production.At present to regenerative chamber silicon carbide brick wall
String leak method for repairing and mending be：Branch gas tube below string leakage flue is connected using pulp shooting machine, furnace wall gunning refractory is sprayed on this
The silicon carbide brick wall string leak of branch gas tube below string leakage flue carries out grouting spray repair.The deficiency of this method is：By
It is only attached to string leak surface of wall in gunning refractory, in conjunction with not enough securely, so after furnace wall spray repair, is held time very short,
Spray repair repeatedly is needed, influences to produce.
By retrieving it is found that being disclosed at present about the report of coke oven, such as Chinese patent 201110227378.1
" a kind of coke oven body mending process ", include string leakage brickwork joint at get connection grout hole, by fire clay spray into grout hole in,
By high pressure mud jacking, this technique, due to string leak punching grouting, keeping material for repairing not easily to fall off, extending usage time, but
Due to the lower part at regenerative chamber carborundum brick wall in the combustion chamber, temperature is high, narrow space, so, this technique is not suitable for
The repairing of regenerative chamber silicon carbide brick wall string leak.Have not yet to see the report for regenerative chamber silicon carbide brick wall string leak repair technology
Road.
Invention content
The purpose of the present invention is to provide one kind in the case where not influencing production, is exclusively used in regenerative chamber silicon carbide brick wall string
Coke oven regenerator silicon carbide brick wall string leaks method for repairing and mending in the production process of leak repairing.
In order to reach object above, the technical solution adopted in the present invention is：Coke oven regenerator is carbonized in the production process
Silica brick wall string leaks method for repairing and mending, it is characterised in that：Include the following steps completion：
（1）, confirm coke oven regenerator silicon carbide brick wall string leak residing for flue number：First by coke-stove gas branch
Thermometric is carried out using colour comparatour thermal detector at the thermometer hole of pipe lower end, is changed according to the fall of temperature and is compared, confirms coke oven
The corresponding flue number of regenerative chamber silicon carbide brick wall string leak；
（2）, determine repairing the time：When passing through step（1）It is determined that coke oven regenerator silicon carbide brick wall string leak is corresponding
After flue number, then check the carbonization chamber Coking adjacent with the flue number, select the carbonization chamber coking mid-term later stage into
Row repairing will not be because temporarily having blocked the position since charge of coke temperature is relatively high at this time when repairing the string and leaking silicon carbide brick wall
The branch gas tube set causes the combustion chamber metope sharp temperature drop, influences furnace temperature and production；
（3）, repairing：When passing through step（2）After the repairing time is determined, then operate according to the following steps：
A, step is blocked（1）The corresponding branch gas tube of string leak flue of confirmation stops coal gas input, pulls out the coal gas
The regenerator sealing wall and checker brick of branch pipe both sides；
B, string leak is accurately positioned：The branch gas tube blocked is accessed with air compressor, compressed air is passed through, observes the string
Leak the air leak position of silicon carbide brick wall, you can the string leak of regenerative chamber silicon carbide brick wall is accurately positioned；
C, string leak combustion chamber coal gas input quantity is reduced：The aperture plate gone here and there on the corresponding branch gas tube of leak is sealed with blind plate
Firmly through-hole, then the macroporous plate box on communicating pipe is changed into the orifice plate box of a diameter of 38mm, so that coal gas input quantity is reduced 2/5, it can
Make other branch gas tube input heated by gas, and avoid the damage because reducing coal gas input quantity chilling to coke oven furnace wall, also profit
It is operated in reducing temperature；
D, the silicon carbide brick that string leak is burnt out is replaced：The silicon carbide brick that will be replaced first is preheated in advance, makes to replace
Silicon carbide brick temperature with string the silicon carbide brick temperature of leak it is consistent, to avoid on block silicon carbide brick with string leak carbonization
Silica brick temperature is inconsistent and combination is not close；
E, gunite：To in the silicon carbide brick replaced with and its adjacent SiC silica brick mating surface material spraying machine spray repair
Refractory matter allows it to solidify, and after solidifying 20 minutes, then by the branch gas tube of compressed air input closure, is carbonized to regenerative chamber
Silica brick wall carries out pressure testing, and silicon carbide brick wall leakage-proof point is qualification, then again by the regenerator lattice brick pulled out and regenerative chamber
On protection wall is built；
F, restore the combustion chamber heating gas：The blind plate being enclosed in the aperture plate on branch gas tube in step C is taken out, together
When the orifice plate box of a diameter of 38mm on communicating pipe is changed to again heating a diameter of 46mm macroporous plate box, restore the vertical fire
Road heating gas amount, flue combustion flame reaches requirement from peephole, that is, completes the regenerative chamber silicon carbide brick wall string
The repairing of leak.
This method whole process can be completed for 4 hours.
The beneficial effects of the present invention are：Coke oven regenerator silicon carbide brick wall string leaks method for repairing and mending, energy in the production process
It carries out in process of production, it is easy to operate, the time is short, reliable and stable, it leaks and repairs especially suitable for regenerative chamber silicon carbide brick wall string,
And labor intensity can be greatly lowered, improve production efficiency.More importantly furnace wall brick is obtained fabulous to protection.
Description of the drawings
Fig. 1 is the schematic structural cross-sectional view of one embodiment of the invention.
In figure：1, burner；2, combustion chamber；3, carbonizing chamber；4, regenerative chamber；41, regenerator sealing wall；42, checker brick；43, tiltedly
Road；5, gas transverse pipe；6, silicon carbide brick wall；7, flue；8, branch gas tube；9, coal gas is responsible for；10, communicating pipe；11, macroporous plate
Box；12, thermometer hole；13, peephole；14, aperture plate.
Specific implementation mode
Fig. 1 gives the schematic cross-sectional view of one embodiment that the present invention is implemented in our factory's coke oven.Referring to Fig.1 to this hair
It is bright to be further described.The coke oven, including burner 1, combustion chamber 2, carbonizing chamber 3, regenerative chamber 4, and pass through flue and chimney
It is connected；The regenerative chamber 4 include regenerator sealing wall 41, checker brick 42, branch gas tube 8, branch gas tube 8 side by side be equipped with first to
7th, it is equipped with aperture plate 14 in the lower part of every branch gas tube 8, the lower end of branch gas tube 8 is connected to gas transverse pipe 5, coal
The both sides of gas branch pipe 8 are regenerator sealing wall 41 and checker brick 42, and the upper end of every branch gas tube 8 is equipped with silicon carbide brick wall 6, and
The bottom in combustion chamber 2 is extended to, corresponding silicon carbide brick wall 6 is accessed in the upper end of checker brick 42 by chute 43；Combustion chamber 2 includes
The first to the 7th flue 7 side by side, and corresponded with the branch gas tube of regenerative chamber 48；It is carbonization between adjacent flue 7
Room 3.Coke oven regenerator silicon carbide brick wall string leaks method for repairing and mending in the production process, it is characterised in that：Include the following steps completion：
（1）, confirm coke oven regenerator silicon carbide brick wall string leak residing for flue number：First by coke-stove gas branch
Thermometric is carried out using colour comparatour thermal detector at the thermometer hole 12 of 8 lower end of pipe, is changed according to the fall of temperature and is compared, the first coal
The temperature of 8 lower end of gas branch pipe reduces by 15 DEG C than the temperature of 8 lower end of the second branch gas tube, the temperature of 8 lower end of other branch gas tubes
Unanimously, confirm the silicon carbide brick wall string leakage of 8 upper end of the first branch gas tube；
（2）, determine repairing the time：When passing through step（1）The silicon carbide brick wall string leakage of 8 upper end of the first branch gas tube is determined
Afterwards, then 3 Coking of carbonization chamber between 7 and second flue 7 of corresponding first flue is checked, in 3 coking of carbonization chamber
The mid-term later stage is repaired；
（3）, repairing：When passing through step（2）After the repairing time is determined, then operate according to the following steps：
A, step is blocked（1）7 corresponding first branch gas tube 8 of the first flue of string leak of confirmation stops coal gas input,
Pull out the regenerator sealing wall 41 and checker brick 42 of 8 both sides of the first branch gas tube；
B, string leak is accurately positioned：The first branch gas tube 8 blocked is accessed with air compressor, is passed through compressed air, is seen
Survey the air leak position of string leakage silicon carbide brick wall 6, you can the string leak of regenerative chamber silicon carbide brick wall 6 is accurately positioned；
C, the corresponding 3 coal gas input quantity of combustion chamber of string leak is reduced：It is small on corresponding first branch gas tube of leak 8 by going here and there
Orifice plate 14 seals through-hole with blind plate, then the macroporous plate box 11 on communicating pipe 10 is changed into the orifice plate box of a diameter of 38mm, makes coal gas
Input quantity reduces 2/5, can make other branch gas tube input heated by gas and because reducing the focusing of coal gas input quantity chilling
The damage of stove furnace wall is additionally favorable for reducing temperature operation；
D, the silicon carbide brick that 8 upper end of the first branch gas tube is burnt out is replaced：The silicon carbide brick that will be replaced first preheats in advance
It is good, keep the temperature of the silicon carbide brick to be replaced consistent with the string silicon carbide brick temperature of leak, to avoid on block silicon carbide brick and
The silicon carbide brick temperature that string leak is burnt out is inconsistent and combination is not close；
E, gunite：To in the silicon carbide brick replaced with and its adjacent silicon carbide brick wall surface material spraying machine spray repair
Refractory matter allows it to solidify, and solidifies 20 minutes, then the first branch gas tube 8 blocked by compressed air input, to regenerative chamber carbon
SiClx wall carries out pressure testing, and silicon carbide wall leakage-proof point is qualification, the regenerator lattice brick 42 and regenerative chamber that then will be pulled out again
On protection wall 41 is built；
F, restore the combustion chamber heating gas：The blind plate in the aperture plate 14 on the first branch gas tube 8 will be enclosed in step C
It takes out, while the orifice plate box of a diameter of 38mm on communicating pipe 10 being changed to the macroporous plate box of a diameter of 46mm of heating again
11, restore 7 heating gas amount of the first flue, first flue combustion flame reaches requirement from peephole 13, that is, completes
The repairing of the silicon carbide brick wall string leak of 8 upper end of the first branch gas tube of regenerative chamber.
Similarly, the silicon carbide brick wall string leak of other 8 upper ends of branch gas tube can be repaired.
Entire mending course is completed for 4 hours.
Claims (1)
1. coke oven regenerator silicon carbide brick wall string leaks method for repairing and mending in production process, it is characterised in that：Include the following steps completion：
（1）, confirm coke oven regenerator silicon carbide brick wall string leak residing for flue number：First by under coke-stove gas branch pipe
Thermometric is carried out using colour comparatour thermal detector at the thermometer hole at end, is changed according to the fall of temperature and is compared, confirms coke oven accumulation of heat
The corresponding flue number of room silicon carbide brick wall string leak；
（2）, determine repairing the time：When passing through step（1）The corresponding vertical fire of coke oven regenerator silicon carbide brick wall string leak is determined
It after Taoist monastic name, then checks the carbonization chamber Coking adjacent with the flue number, the carbonization chamber coking mid-term later stage is selected to be repaiied
It mends；
（3）, repairing：When passing through step（2）After the repairing time is determined, then operate according to the following steps：
A, step is blocked（1）The corresponding branch gas tube of string leak flue of confirmation stops coal gas input, pulls out the branch gas tube
The regenerator sealing wall and checker brick of both sides；
B, string leak is accurately positioned：The branch gas tube blocked is accessed with air compressor, is passed through compressed air, observes string leakage carbon
The air leak position of SiClx brick wall, you can the string leak of regenerative chamber silicon carbide brick wall is accurately positioned；
C, string leak combustion chamber coal gas input quantity is reduced：The aperture plate gone here and there on the corresponding branch gas tube of leak is sealed with blind plate logical
Hole, then the macroporous plate box on communicating pipe is changed into the orifice plate box of a diameter of 38mm, so that coal gas input quantity is reduced 2/5；
D, the silicon carbide brick that string leak is burnt out is replaced：The silicon carbide brick that will be replaced first is preheated in advance, makes the carbon to be replaced
The temperature of SiClx brick is consistent with the string silicon carbide brick temperature of leak；
E, gunite：To fire resisting in the silicon carbide brick replaced with and its adjacent SiC silica brick mating surface material spraying machine spray repair
Material allows it to solidify, after solidifying 20 minutes, then by the branch gas tube of compressed air input closure, to regenerative chamber silicon carbide brick
Wall carries out pressure testing, and silicon carbide brick wall leakage-proof point is qualification, then again by the regenerator lattice brick pulled out and regenerator sealing wall
On block；
F, restore the combustion chamber heating gas：The blind plate being enclosed in the aperture plate on branch gas tube in step C is taken out, simultaneously will
The orifice plate box of a diameter of 38mm on communicating pipe is changed to the macroporous plate box of a diameter of 46mm of heating again, restores the flue and adds
Hot coal tolerance, flue combustion flame reaches requirement from peephole, that is, completes the regenerative chamber silicon carbide brick wall string leak
Repairing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610229208.XA CN105694920B (en) | 2016-04-14 | 2016-04-14 | Coke oven regenerator silicon carbide brick wall string leaks method for repairing and mending in production process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610229208.XA CN105694920B (en) | 2016-04-14 | 2016-04-14 | Coke oven regenerator silicon carbide brick wall string leaks method for repairing and mending in production process |
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| CN105694920A CN105694920A (en) | 2016-06-22 |
| CN105694920B true CN105694920B (en) | 2018-08-31 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106190185B (en) * | 2016-08-22 | 2018-12-18 | 宣化钢铁集团有限责任公司 | The method of coke oven part burning chamber replacement heated by gas |
| CN108264907B (en) * | 2018-01-27 | 2023-08-29 | 新余钢铁股份有限公司 | Blow-by gas gunning device for top layer of coke oven and pneumatic gunning method thereof |
| CN110003922A (en) * | 2019-04-30 | 2019-07-12 | 山东泰山钢铁集团有限公司 | A kind of method for repairing and mending of peephole brick cup down tube brick |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP3397723B2 (en) * | 1999-07-05 | 2003-04-21 | 川崎製鉄株式会社 | Coke oven repair method |
| CN2908503Y (en) * | 2006-05-30 | 2007-06-06 | 宝山钢铁股份有限公司 | Spray gun for repairing blowby of regenerative chamber of coke oven |
| 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 |
| CN102304367B (en) * | 2011-08-09 | 2013-11-27 | 莱芜钢铁集团有限公司 | Coke oven body mending process |
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