CN105694920A - Method for repairing inter-leakage of silicon carbide brick walls of coke oven regenerative chamber in production - Google Patents
Method for repairing inter-leakage of silicon carbide brick walls of coke oven regenerative chamber in production Download PDFInfo
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- CN105694920A CN105694920A CN201610229208.XA CN201610229208A CN105694920A CN 105694920 A CN105694920 A CN 105694920A CN 201610229208 A CN201610229208 A CN 201610229208A CN 105694920 A CN105694920 A CN 105694920A
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- regenerator
- silicon carbide
- string
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- leak
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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 a method for repairing inter-leakage of silicon carbide brick walls of a coke oven regenerative chamber in production. The method is characterized by including the steps of accurately positioning and selecting medium term and later period of coking of a coking chamber; repairing by firstly blocking coal gas branch pipes correspondingly , feeding compressed air to observe leakage position of the inter-leakage silicon carbide brick walls, sealing through orifices of orifice plates on the coal gas branch pipes via blind plates, and changing a hole-plate case into an-orifice plate case with the orifice 38mm in diameter; changing burned-out silicon carbide bricks at the inter-leakage position; spraying refractories; and recovering coal gas for heating of a combustion chamber, thereby completing repairing of the inter-leakage position of the silicon carbide brick walls of the regenerative chamber. The method can be implemented during production, is easy to operate, is stable and reliable, needs short time for repairing, and is particularly applicable to repairing of silicon carbide brick walls of the regenerative chamber in production, and further has the advantages of reducing labor intensity and improving production efficiency greatly and more importantly, protecting oven bricks effectively.
Description
Technical field
The present invention relates to the improvement of a kind of coke oven technique, specifically the one leakage method for repairing and mending that is exclusively used in production process coke oven regenerator carborundum brick wall string。
Background technology
Coke oven is a kind of stove stolen with refractory block by refractory brick, including burner 1, combustor 2, carbonizing chamber 3, regenerator 4, and is connected with chimney by flue；Described regenerator 4 includes regenerator sealing wall 41, checker brick 42, branch gas tube 8, branch gas tube 8 side by side be provided with first to the 7th, it is provided with aperture plate 14 in the bottom of every branch gas tube 8, the lower end of branch gas tube 8 all connects with 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 is equipped with carborundum brick wall 6, and extends corresponding combustor 2 inner bottom part, and carborundum brick wall 6 is accessed by chute 43 in the upper end of checker brick 42；Combustor 2 includes the first to the 7th flue 7 side by side, and with branch gas tube 8 one_to_one corresponding of regenerator 4；It is carbonizing chamber 3 between adjacent flue 7；Gas transverse pipe 5 is responsible for 9 by communicating pipe 10 with coal gas and is connected, and the middle part in communicating pipe 10 is provided with macroporous plate box 11；The aperture of described macroporous plate box 11 is 46mm；(as shown in Figure 1)。At present, string leakage phenomenon often occurs between this regenerator carborundum brick wall, string leak usually occurs in the carborundum metope place of first to fourth branch gas tube 8 correspondence, herein after the string leakage of regenerator carborundum brick wall, as repaired not in time, may proceed to expand regenerator carborundum brick wall string leakage area, cause the checker brick burning out regenerator, damage body of heater, affect coke oven heating, waste coal gas, impact produces。So regenerator carborundum brick wall string leak must be repaired in time, not affect normal production。To the method for repairing and mending of regenerator carborundum brick wall string leak it is at present: adopting pulp shooting machine to connect the branch gas tube below string leakage flue, the carborundum brick wall string leak that furnace wall gunning refractory is sprayed on the branch gas tube below this string leakage flue carries out grouting spray repair。The deficiency of this method is in that: be only attached to string leak surface of wall due to gunning refractory, and in conjunction with firm not, so after furnace wall spray repair, holding time very short, it is necessary to spray repair repeatedly, impact produces。
By retrieving, it is related to the report of coke oven at present, as Chinese patent 201110227378.1 discloses " a kind of coke oven body mending process ", get the grout hole of connection including at string leakage brickwork joint place, fire clay is sprayed in grout hole, by high pressure mud jacking, this technique, due to string leak punching grouting, make material for repairing difficult drop-off, extend the use time, but owing to regenerator carborundum brick wall is in the bottom in combustor, temperature is high, narrow space, so, this technique is not suitable for the repairing of regenerator carborundum brick wall string leak。Have not yet to see the report for regenerator carborundum brick wall string leak repair technology。
Summary of the invention
It is an object of the invention to provide a kind of when not affecting production, be exclusively used in regenerator carborundum brick wall string leak repair production process in coke oven regenerator carborundum brick wall string leakage method for repairing and mending。
In order to reach object above, the technical solution adopted in the present invention is: coke oven regenerator carborundum brick wall string leakage method for repairing and mending in this production process, it is characterised in that: comprise the following steps:
(1) flue number residing for coke oven regenerator carborundum brick wall string leak, is confirmed: first pass through and adopt colour comparatour thermal detector to carry out thermometric at the thermometer hole place of coke-stove gas arm lower end, fall change comparison according to temperature, confirms the flue number that coke oven regenerator carborundum brick wall string leak is corresponding；
(2) the repairing time, is determined: after determined the flue number that coke oven regenerator carborundum brick wall string leak is corresponding by step (1), check the carbonization chamber Coking adjacent with this flue number again, this carbonization chamber coking later stage in mid-term is selected to repair, owing to now charge of coke temperature is of a relatively high, will not because temporarily having blocked the branch gas tube of this position when repairing this string leakage carborundum brick wall, cause this heating wall surface temperature sharply to decline, affect furnace temperature and production；
(3), repair: after determining the repairing time by step (2), then operation according to the following steps:
String branch gas tube corresponding to leak flue that A, closure step (1) confirm, stops coal gas input, pulls out regenerator sealing wall and the checker brick of these branch gas tube both sides；
B, it is accurately positioned string leak: access the branch gas tube of closure with air compressor, pass into compression air, observes the air leak position of this string leakage carborundum brick wall, the string leak of regenerator carborundum brick wall can be accurately positioned；
C, reduce string leak combustor coal gas input quantity: the aperture plate blind plate gone here and there on branch gas tube corresponding to leak is sealed through hole, change the macroporous plate box on communicating pipe into orifice plate box that diameter is 38mm again, coal gas input quantity is made to reduce 2/5, other branch gas tube input heated by gas can be made, avoid again, because reducing the damage to coke oven furnace wall of the coal gas input quantity chilling, being additionally favorable for reducing temperature operation；
The silicon carbide brick that D, replacing string leak burn out: the silicon carbide brick first will changed is preheated in advance, the temperature making the silicon carbide brick to change is consistent with the silicon carbide brick temperature of string leak, combines not tight to avoid the silicon carbide brick stolen inconsistent with the silicon carbide brick temperature of string leak；
E, gunite: to refractory matter on the silicon carbide brick replaced with and adjacent SiC silica brick mating surface material spraying machine spray repair thereof, allow it solidify, after solidifying 20 minutes, branch gas tube again through compression air input closure, regenerator carborundum brick wall is carried out pressure testing, it is qualified that carborundum brick wall leakage-proof point is, and then the regenerator lattice brick pulled out and regenerator sealing wall is stolen again；
F, recover this combustor heating gas: taken out by the blind plate being enclosed in step C in the aperture plate on branch gas tube, the orifice plate box that diameter is 38mm simultaneously the macroporous plate box on communicating pipe changed into, it is changed to the macroporous plate box of the diameter 46mm of heating again, recover this flue heating gas amount, observe flue combustion flame from peephole and reach requirement, namely complete the repairing of this regenerator carborundum brick wall string leak。
The whole process of the method can complete for 4 hours。
The beneficial effects of the present invention is: coke oven regenerator carborundum brick wall string leakage method for repairing and mending in this production process, can carry out in process of production, easily operation, time are short, reliable and stable, it is particularly well-suited to the leakage of regenerator carborundum brick wall string repair, and labor intensity can be greatly lowered, improve production efficiency。The more important thing is that furnace wall brick obtains fabulous arriving to be protected。
Accompanying drawing explanation
Fig. 1 is the structure cross-sectional schematic of one embodiment of the invention。
In figure: 1, burner；2, combustor；3, carbonizing chamber；4, regenerator；41, regenerator sealing wall；42, checker brick；43, chute；5, gas transverse pipe；6, carborundum brick wall；7, flue；8, branch gas tube；9, coal gas supervisor；10, communicating pipe；11, macroporous plate box；12, thermometer hole；13, peephole；14, aperture plate。
Detailed description of the invention
Embodiment
Fig. 1 gives the cross-sectional schematic of the embodiment that the present invention implements in our factory's coke oven。With reference to Fig. 1, the invention will be further described。Described coke oven, including burner 1, combustor 2, carbonizing chamber 3, regenerator 4, and is connected with chimney by flue；Described regenerator 4 includes regenerator sealing wall 41, checker brick 42, branch gas tube 8, branch gas tube 8 side by side be provided with first to the 7th, it is provided with aperture plate 14 in the bottom of every branch gas tube 8, the lower end of branch gas tube 8 all connects with 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 is equipped with carborundum brick wall 6, and extends the bottom in combustor 2, and the carborundum brick wall 6 of correspondence is accessed by chute 43 in the upper end of checker brick 42；Combustor 2 includes the first to the 7th flue 7 side by side, and with branch gas tube 8 one_to_one corresponding of regenerator 4；It is carbonizing chamber 3 between adjacent flue 7。Coke oven regenerator carborundum brick wall string leakage method for repairing and mending in this production process, it is characterised in that: comprise the following steps:
(1) flue number residing for coke oven regenerator carborundum brick wall string leak, is confirmed: first pass through and adopt colour comparatour thermal detector to carry out thermometric at thermometer hole 12 place of coke-stove gas arm 8 lower end, fall change comparison according to temperature, the temperature of the first branch gas tube 8 lower end reduces by 15 DEG C than the temperature of the second branch gas tube 8 lower end, the temperature of other branch gas tube 8 lower end is consistent, confirm the first branch gas tube 8 upper end the leakage of carborundum brick wall string；
(2) the repairing time, is determined: after the carborundum brick wall string being determined the first branch gas tube 8 upper end by step (1) is leaked, check carbonization chamber 3 Coking between the first flue 7 and second flue 7 of correspondence again, repair in this carbonization chamber 3 coking later stage in mid-term；
(3), repair: after determining the repairing time by step (2), then operation according to the following steps:
First branch gas tube 8 of string leak the first flue 7 correspondence that A, closure step (1) confirm, stops coal gas input, pulls out regenerator sealing wall 41 and the checker brick 42 of the first branch gas tube 8 both sides；
B, it is accurately positioned string leak: access the first branch gas tube 8 of closure with air compressor, pass into compression air, observes the air leak position of this string leakage carborundum brick wall 6, the string leak of regenerator carborundum brick wall 6 can be accurately positioned；
C, reduce string combustor 3 coal gas input quantity corresponding to leak: the aperture plate 14 gone here and there on the first branch gas tube 8 corresponding to leak is sealed through hole with blind plate, change the macroporous plate box 11 on communicating pipe 10 into orifice plate box that diameter is 38mm again, coal gas input quantity is made to reduce 2/5, other branch gas tube input heated by gas can be made, avoid again, because reducing the damage to coke oven furnace wall of the coal gas input quantity chilling, being additionally favorable for reducing temperature operation；
D, change the silicon carbide brick that the first branch gas tube 8 upper end burns out: the silicon carbide brick first will changed is preheated in advance, the temperature making the silicon carbide brick to change is consistent with the silicon carbide brick temperature of string leak, combines not tight to avoid the silicon carbide brick stolen inconsistent with the silicon carbide brick temperature that string leak burns out；
E, gunite: to refractory matter on the silicon carbide brick replaced with and adjacent carborundum brick wall surface material spraying machine spray repair thereof, allow it solidify, solidify 20 minutes, the first branch gas tube 8 again through compression air input closure, regenerator carborundum wall is carried out pressure testing, it is qualified that carborundum wall leakage-proof point is, and then the regenerator lattice brick 42 pulled out and regenerator sealing wall 41 is stolen again；
F, recover this combustor heating gas: taken out by the blind plate in the aperture plate 14 being enclosed in step C on the first branch gas tube 8, the orifice plate box that diameter is 38mm simultaneously the macroporous plate box 11 on communicating pipe 10 changed into, it is changed to the macroporous plate box 11 of the diameter 46mm of heating again, recover the first flue 7 heating gas amount, observe the first flue combustion flame from peephole 13 and reach requirement, namely complete the repairing of the carborundum brick wall string leak of this regenerator the first branch gas tube 8 upper end。
In like manner, it is possible to repair the carborundum brick wall string leak of other branch gas tube 8 upper ends。
Whole mending course completes for 4 hours。
Claims (1)
1. coke oven regenerator carborundum brick wall string leakage method for repairing and mending in production process, it is characterised in that: comprise the following steps:
(1) flue number residing for coke oven regenerator carborundum brick wall string leak, is confirmed: first pass through and adopt colour comparatour thermal detector to carry out thermometric at the thermometer hole place of coke-stove gas arm lower end, fall change comparison according to temperature, confirms the flue number that coke oven regenerator carborundum brick wall string leak is corresponding；
(2), the repairing time is determined: after determined the flue number that coke oven regenerator carborundum brick wall string leak is corresponding by step (1), then check the carbonization chamber Coking adjacent with this flue number, select this carbonization chamber coking later stage in mid-term to repair；
(3), repair: after determining the repairing time by step (2), then operation according to the following steps:
String branch gas tube corresponding to leak flue that A, closure step (1) confirm, stops coal gas input, pulls out regenerator sealing wall and the checker brick of these branch gas tube both sides；
B, it is accurately positioned string leak: access the branch gas tube of closure with air compressor, pass into compression air, observes the air leak position of this string leakage carborundum brick wall, the string leak of regenerator carborundum brick wall can be accurately positioned；
C, reduce string leak combustor coal gas input quantity: the aperture plate blind plate gone here and there on branch gas tube corresponding to leak is sealed through hole, then changes the macroporous plate box on communicating pipe into orifice plate box that diameter is 38mm, make coal gas input quantity reduce 2/5；
The silicon carbide brick that D, replacing string leak burn out: the silicon carbide brick first will changed is preheated in advance, the temperature making the silicon carbide brick to change is consistent with the silicon carbide brick temperature of string leak；
E, gunite: to refractory matter on the silicon carbide brick replaced with and adjacent SiC silica brick mating surface material spraying machine spray repair thereof, allow it solidify, after solidifying 20 minutes, branch gas tube again through compression air input closure, regenerator carborundum brick wall is carried out pressure testing, it is qualified that carborundum brick wall leakage-proof point is, and then the regenerator lattice brick pulled out and regenerator sealing wall is stolen again；
F, recover this combustor heating gas: taken out by the blind plate being enclosed in step C in the aperture plate on branch gas tube, the orifice plate box that diameter is 38mm simultaneously the macroporous plate box on communicating pipe changed into, it is changed to the macroporous plate box of the diameter 46mm of heating again, recover this flue heating gas amount, observe flue combustion flame from peephole and reach requirement, namely complete the repairing of this regenerator carborundum brick wall string leak。
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 |
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| 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 true CN105694920A (en) | 2016-06-22 |
| CN105694920B CN105694920B (en) | 2018-08-31 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106190185A (en) * | 2016-08-22 | 2016-12-07 | 宣化钢铁集团有限责任公司 | The method of coke oven part combustor displacement heated by gas |
| CN108264907A (en) * | 2018-01-27 | 2018-07-10 | 新余钢铁股份有限公司 | A kind of pneumatic mending device of oven top of coke oven layer blowby and its pneumatic spray repair method |
| 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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| JP2001019968A (en) * | 1999-07-05 | 2001-01-23 | Kawasaki Steel Corp | Repairing method for coke oven |
| 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 |
| CN101974339A (en) * | 2010-11-03 | 2011-02-16 | 芜湖新兴铸管有限责任公司 | Repairing method of coking chamber of coke oven by using silica bricks |
| CN102304367A (en) * | 2011-08-09 | 2012-01-04 | 莱芜钢铁集团有限公司 | Coke oven body mending process |
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2016
- 2016-04-14 CN CN201610229208.XA patent/CN105694920B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001019968A (en) * | 1999-07-05 | 2001-01-23 | Kawasaki Steel Corp | Repairing method for coke oven |
| 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 |
| CN101974339A (en) * | 2010-11-03 | 2011-02-16 | 芜湖新兴铸管有限责任公司 | Repairing method of coking chamber of coke oven by using silica bricks |
| CN102304367A (en) * | 2011-08-09 | 2012-01-04 | 莱芜钢铁集团有限公司 | Coke oven body mending process |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106190185A (en) * | 2016-08-22 | 2016-12-07 | 宣化钢铁集团有限责任公司 | The method of coke oven part combustor displacement heated by gas |
| 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 |
| CN108264907A (en) * | 2018-01-27 | 2018-07-10 | 新余钢铁股份有限公司 | A kind of pneumatic mending device of oven top of coke oven layer blowby and its pneumatic spray repair method |
| 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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| CN105694920B (en) | 2018-08-31 |
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