CN114540050A - Method for repairing damaged wall surface of furnace end of stamp-charging coke oven - Google Patents
Method for repairing damaged wall surface of furnace end of stamp-charging coke oven Download PDFInfo
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- CN114540050A CN114540050A CN202210166549.2A CN202210166549A CN114540050A CN 114540050 A CN114540050 A CN 114540050A CN 202210166549 A CN202210166549 A CN 202210166549A CN 114540050 A CN114540050 A CN 114540050A
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- furnace
- carbonization chamber
- repairing
- coke oven
- wall surface
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- 239000000571 coke Substances 0.000 title claims abstract description 59
- 238000000034 method Methods 0.000 title claims abstract description 25
- 238000003763 carbonization Methods 0.000 claims description 58
- 239000011094 fiberboard Substances 0.000 claims description 26
- YKTSYUJCYHOUJP-UHFFFAOYSA-N [O--].[Al+3].[Al+3].[O-][Si]([O-])([O-])[O-] Chemical compound [O--].[Al+3].[Al+3].[O-][Si]([O-])([O-])[O-] YKTSYUJCYHOUJP-UHFFFAOYSA-N 0.000 claims description 23
- 238000009413 insulation Methods 0.000 claims description 18
- 238000004140 cleaning Methods 0.000 claims description 17
- 230000008439 repair process Effects 0.000 claims description 16
- 239000003245 coal Substances 0.000 claims description 15
- 238000004939 coking Methods 0.000 claims description 13
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 12
- 239000010425 asbestos Substances 0.000 claims description 12
- 229910052895 riebeckite Inorganic materials 0.000 claims description 12
- 238000004519 manufacturing process Methods 0.000 claims description 8
- 239000011449 brick Substances 0.000 claims description 6
- 239000011521 glass Substances 0.000 claims description 6
- 229910052742 iron Inorganic materials 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 6
- 238000010438 heat treatment Methods 0.000 claims description 5
- 230000000694 effects Effects 0.000 claims description 4
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 239000004568 cement Substances 0.000 claims description 3
- 238000012423 maintenance Methods 0.000 claims description 3
- 238000012544 monitoring process Methods 0.000 claims description 3
- 235000011007 phosphoric acid Nutrition 0.000 claims description 3
- 150000003016 phosphoric acids Chemical class 0.000 claims description 3
- 238000002360 preparation method Methods 0.000 claims description 3
- 238000004321 preservation Methods 0.000 claims description 3
- 229910052710 silicon Inorganic materials 0.000 claims description 3
- 239000010703 silicon Substances 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 239000002023 wood Substances 0.000 claims description 3
- 239000011248 coating agent Substances 0.000 claims description 2
- 238000000576 coating method Methods 0.000 claims description 2
- -1 light diatom ooze Substances 0.000 claims description 2
- 230000001502 supplementing effect Effects 0.000 claims description 2
- 230000007613 environmental effect Effects 0.000 abstract description 5
- 239000007789 gas Substances 0.000 description 6
- 239000000428 dust Substances 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 239000000779 smoke Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
Classifications
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
Landscapes
- 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 the damage of the wall surface of a furnace end of a tamping coke oven, which can prolong the service life of the furnace body of the coke oven, reduce the gas consumption, stabilize the coke quality and ensure the environmental protection and standard reaching of the exhaust gas discharged from a coke oven chimney by effectively repairing the damaged part of the wall surface of the furnace end of the tamping coke oven in time.
Description
Technical Field
The invention relates to a method for repairing the damage of the wall surface of a furnace end of a tamping coke oven.
Background
As the tamping coke oven is used for side charging, the tamped coal cake is pushed in from the side of the coking chamber, gaps of about 10mm are respectively reserved between the coal cake and the walls of the coking chambers at two sides, and the width of the coking side is larger than that of the side of the coking chamber for smooth coke pushing. When the tamping coke oven is used, the wall of a carbonization chamber, particularly the wall of a furnace head, has the phenomena of cracks, denudation, pitted surface, corner drop, deformation, dislocation and the like in different degrees on the wall surface of the furnace head due to side coal charging. With the increasing damage degree, the blowby of the fire channel of the coke oven is caused, the normal organization of the coking production is influenced, the burning loss of the coke is serious, and even the quality of the coke is reduced. In addition, due to the blowby of the carbonization chamber and the flame path, the emissions such as smoke dust of a coke oven chimney are easy to exceed the standard, and the environmental protection is not up to the standard.
Therefore, the damaged part of the wall surface of the furnace end of the stamp-charging coke oven can be effectively repaired in time, the service life of the furnace body of the coke oven can be prolonged, the normal production of the coke oven is ensured, the coke quality is stabilized, and the environmental protection and standard reaching of emissions of smoke dust and the like of a chimney of the coke oven are ensured.
Disclosure of Invention
In order to solve the technical problems, the invention aims to provide a method for repairing the damaged wall surface of the furnace end of the stamp-charging coke oven.
In order to solve the technical problems, the invention adopts the following technical scheme:
the invention relates to a method for repairing damaged wall surfaces of a furnace end of a stamp-charging coke oven, which specifically comprises the following steps:
s1 preparation of Material
The two movable supports are divided into 3 layers, and each layer of support can be paved with wood boards for people to stand; meanwhile, the bottom of the bracket is provided with a roller with a brake device; manufacturing an asbestos heat insulation curtain with the height and the width slightly larger than those of the carbonization chamber; preparing an aluminum silicate fiberboard, light diatom ooze, glass water, a plurality of phosphoric acids, a plurality of sets of heat insulation clothes and 1 infrared thermometer;
s2 method for repairing damaged part
S2.1: repairing the damaged part for pretreatment, after the tamping coke is pushed out of the coking chamber, installing a coke side oven door of the coking chamber to be treated, and cleaning the damaged bottom of the coking chamber on the machine side;
s2.2: method for using asbestos heat insulation curtain
After the furnace end of the tamping coke oven is naturally cooled for a certain time, in order to reduce the damage degree of the furnace wall of the upper carbonization chamber, an asbestos heat insulation curtain is installed; making the aluminum silicate fiber board into a door curtain slightly larger than the width and height of the carbonization chamber from top to bottom by using an iron wire, fixing the upper part of the door curtain on a gas collecting pipe of the tamping coke oven, and slowly delivering the asbestos heat insulation curtain into the carbonization chamber of the tamping coke oven according to the requirement of entering the carbonization chamber;
s2.3: repairing step for operator
A repairing operator stands on the bracket, wears the thermal insulation suit, correspondingly cleans the damaged part of the carbonization chamber when the temperature reaches 900 ℃, and alternately pastes aluminum silicate fiberboards on the furnace walls at two sides after cleaning; uniformly coating glass cement silicon on the fiberboard, and adhering an aluminum silicate fiberboard on a wall body between the curtain and a furnace door of the carbonization chamber from bottom to top in the carbonization chamber; taking down the aluminum silicate fiberboards one by one from top to bottom, cleaning crack parts of the carbonization chamber layer by layer, and carrying out tightness treatment by pug after cleaning; patching treatment is carried out on the wall surface of the carbonization chamber when the wall surface is seriously damaged, the carbonization chamber is built again, and then an aluminum silicate fiberboard is adhered for heat preservation; after the treatment is finished, removing the aluminum silicate fiber boards layer by layer, ensuring that the wall tile of the furnace end has no crack, cleaning the material in the carbonization chamber, and naturally and slowly heating the upper furnace door;
s2.4: furnace temperature rise and coal charging control in carbonization chamber
After the temperature of the furnace in the carbonization chamber rises to 1100 ℃, checking the brick joint connection condition of the carbonization chamber, cleaning the bottom of the carbonization chamber, filling part of brick joints by utilizing air pressure guniting, and after guniting is finished, slowly raising the temperature of the furnace to 1250 ℃, and starting to charge coal;
s3, repairing damaged part and follow-up operation
S3.1: the method has the advantages that the management of the furnace temperature is enhanced, the stability of the coking time, the heating system and the quality index of the coal as fired is ensured, the production and balanced heat supply of the coke furnace are ensured, and the influence on the furnace wall caused by the fluctuation of the furnace temperature is avoided;
s3.2: the maintenance mode of repair personnel is improved, the individual section is managed, the furnace wall is responsible for maintaining and is responsible for the personnel, and the aim is to achieve the purposes of small repair without major repair, hot repair without cold repair;
s3.3: for the furnace number which is dug and supplemented, regularly checking and timely wiping and supplementing; the monitoring and adjustment of longitudinal and transverse braces and partial steel columns of the furnace top are organized in time, and the protection effect of furnace iron pieces on the furnace body is ensured.
Furthermore, the specification of the aluminum silicate fiber board is 1000mm multiplied by 500mm multiplied by 50 mm.
Furthermore, the time for the temperature of the carbonization chamber furnace to rise to 1100 ℃ is controlled to be 2-3 h.
Further, in step S2.4, the initial coal charge is 2/3 at normal level, and the turnaround time is 24 hours.
Furthermore, the roller with the brake device is locked through the jackscrew.
Compared with the prior art, the invention has the beneficial technical effects that:
the method can prolong the service life of the coke oven body, reduce the gas consumption, stabilize the coke quality and ensure the environmental protection and standard reaching of the exhaust gas discharged from the coke oven chimney by effectively repairing the damaged part of the wall surface of the tamping coke oven head in time.
Detailed Description
In order to solve the problem of repairing the damaged part of the wall surface of the furnace end of the stamp-charging coke oven, the invention provides the method for repairing the damaged part of the wall surface of the furnace end of the stamp-charging coke oven, which can prolong the service life of the furnace body of the coke oven, reduce the gas consumption, stabilize the coke quality and ensure that the discharged waste gas of a coke oven chimney reaches the environmental protection standard.
The present invention will be described in detail with reference to specific examples.
A method for repairing a damaged part of a wall surface of a furnace end of a stamp-charging coke oven specifically comprises the following steps:
s1 preparation of Material
Two movable supports are manufactured, the supports are divided into 3 layers, and each layer of support can be paved with wood boards for people to stand. And meanwhile, the wheels and the jackscrews are arranged at the bottom of the support, so that the support is convenient to move and is fixed on a contact object on the ground. And manufacturing the asbestos heat insulation curtain with the height and the width slightly larger than those of the carbonization chamber. Preparing an aluminum silicate fiberboard (the specification is 1000mm multiplied by 500mm multiplied by 50mm), a plurality of light diatom oozes, glass water, a plurality of phosphoric acids, 4 sets of thermal insulation clothes and 1 set of infrared thermometers.
S2 method for repairing damaged part
S2.1: repairing the damaged part for pretreatment, pushing the tamping coke out of the carbonization chamber, installing the coke side oven door of the carbonization chamber to be treated, and cleaning the damaged bottom of the machine side of the carbonization chamber.
S2.2: method for using asbestos heat insulation curtain
After the furnace end of the tamping coke oven is naturally cooled for about 1 hour, in order to reduce the damage degree of the furnace wall of the upper carbonization chamber, an asbestos heat insulation curtain is installed. The aluminum silicate fiber board is made into a door curtain slightly larger than the width and the height of the carbonization chamber from top to bottom by using an iron wire, the upper part of the door curtain is fixed on a gas collecting pipe of the tamping coke oven, and then the asbestos heat insulation curtain is slowly sent into the carbonization chamber of the tamping coke oven according to the requirement of entering the carbonization chamber.
S2.3: repairing step for operator
The repairing operator stands on the bracket, wears the thermal insulation suit, correspondingly cleans the damaged part of the carbonization chamber when the temperature reaches 900 ℃, and alternately pastes the aluminum silicate fiber boards on the furnace walls at two sides after cleaning. Glass cement silicon is uniformly coated on the fiberboard, and the wall body between the curtain and the door of the carbonization chamber is adhered with the aluminum silicate fiberboard from bottom to top. Taking down the aluminum silicate fiber boards from top to bottom one by one, cleaning the crack parts of the carbonization chamber layer by layer, and carrying out tightness treatment by pug after cleaning. And (4) performing patching treatment on the seriously damaged wall surface of the carbonization chamber, building again, and then adhering an aluminum silicate fiberboard for heat preservation. After the treatment is finished, the aluminum silicate fiber boards are dismantled layer by layer, then the furnace end wall tile is ensured to have no crack, and after the material in the carbonization chamber is cleaned, the temperature of the upper furnace door is naturally and slowly raised.
S2.4: furnace temperature rise and coal charging control in carbonization chamber
And (3) after the temperature of the furnace in the carbonization chamber rises to 1100 ℃ (the time is controlled for 2-3 h), checking the brick joint connection condition of the carbonization chamber, cleaning the bottom of the carbonization chamber, filling part of brick joints by using air pressure guniting, slowly raising the temperature of the furnace to 1250 ℃ after guniting is finished, and starting coal charging. The initial coal charge should be slightly less, about 2/3 being the normal best, and the turnover time is 24 h.
S3, repairing damaged part and follow-up operation
S3.1: the method has the advantages of strengthening the management of the furnace temperature, ensuring the stability of the coking time, the heating system and the quality index of the coal as fired, ensuring the production and balanced heat supply of the coke furnace, and avoiding the influence on the furnace wall caused by the fluctuation of the furnace temperature.
S3.2: the maintenance mode of repair personnel is improved, the individual section is managed, the furnace wall is maintained to be responsible for the personnel, and the aim is to achieve the purposes of small repair without major repair, hot repair without cold repair.
S3.3: and (5) regularly checking the repaired furnace number and timely repairing the repaired furnace number. The monitoring and adjustment of longitudinal and transverse braces and partial steel columns of the furnace top are organized in time, and the protection effect of furnace iron pieces on the furnace body is ensured.
The repairing method is used for repairing the damaged part of the wall surface of the coking chamber of the coke oven body, so that the temperature of the wall of the coking chamber is ensured, a relatively good operating environment is provided for repairing personnel, and the problems of profile erosion, cracking and the like of the head part of the coke oven body and the phenomenon of standard exceeding of chimney emission are effectively solved. After the repair, the leakage gas loss of the coke oven carbonization chamber is reduced, the chimney emission concentration is reduced, the influence of the temperature reduction of the carbonization chamber on the coke oven is effectively avoided, the damage degree of the oven body is low, and the service life is prolonged.
The above-described embodiments are merely illustrative of the preferred embodiments of the present invention, and do not limit the scope of the present invention, and various modifications and improvements of the technical solutions of the present invention can be made by those skilled in the art without departing from the spirit of the present invention, and the technical solutions of the present invention are within the scope of the present invention defined by the claims.
Claims (5)
1. A method for repairing the damage of the wall surface of a furnace end of a tamping coke oven is characterized by comprising the following steps: the method specifically comprises the following steps:
s1 preparation of Material
The two movable supports are divided into 3 layers, and each layer of support can be paved with wood boards for people to stand; meanwhile, the bottom of the bracket is provided with a roller with a brake device; manufacturing an asbestos heat insulation curtain with the height and the width slightly larger than those of the carbonization chamber; preparing an aluminum silicate fiberboard, light diatom ooze, glass water, a plurality of phosphoric acids, a plurality of sets of heat insulation clothes and 1 infrared thermometer;
s2 method for repairing damaged part
S2.1: repairing the damaged part for pretreatment, namely after the tamping coke is pushed out of the carbonization chamber, installing a coke side oven door of the carbonization chamber to be treated, and cleaning the bottom of the carbonization chamber with the side damaged;
s2.2: method for using asbestos heat insulation curtain
After the furnace end of the tamping coke oven is naturally cooled for a certain time, in order to reduce the damage degree of the furnace wall of the upper carbonization chamber, an asbestos heat insulation curtain is installed; making the aluminum silicate fiber board into a door curtain slightly larger than the width and height of the carbonization chamber from top to bottom by using an iron wire, fixing the upper part of the door curtain on a gas collecting pipe of the tamping coke oven, and slowly delivering the asbestos heat insulation curtain into the carbonization chamber of the tamping coke oven according to the requirement of entering the carbonization chamber;
s2.3: repairing step for operator
A repairing operator stands on the bracket, wears the thermal insulation suit, correspondingly cleans the damaged part of the carbonization chamber when the temperature reaches 900 ℃, and alternately pastes aluminum silicate fiberboards on the furnace walls at two sides after cleaning; uniformly coating glass cement silicon on the fiberboard, and adhering an aluminum silicate fiberboard on a wall body between the curtain and a furnace door of the carbonization chamber from bottom to top in the carbonization chamber; taking down the aluminum silicate fiberboards one by one from top to bottom, cleaning crack parts of the carbonization chamber layer by layer, and carrying out tightness treatment by pug after cleaning; patching treatment is carried out on the wall surface of the carbonization chamber when the wall surface is seriously damaged, the carbonization chamber is built again, and then an aluminum silicate fiberboard is adhered for heat preservation; after the treatment is finished, removing the aluminum silicate fiber boards layer by layer, ensuring that the wall tile of the furnace end has no crack, cleaning the material in the carbonization chamber, and naturally and slowly heating the upper furnace door;
s2.4: furnace temperature rise and coal charging control in carbonization chamber
After the temperature of the furnace in the carbonization chamber rises to 1100 ℃, checking the brick joint connection condition of the carbonization chamber, cleaning the bottom of the carbonization chamber, filling part of brick joints by utilizing air pressure guniting, and after guniting is finished, slowly raising the temperature of the furnace to 1250 ℃, and starting to charge coal;
s3, repairing damaged part and follow-up operation
S3.1: the method has the advantages that the management of the furnace temperature is enhanced, the stability of the coking time, the heating system and the quality index of the coal as fired is ensured, the production and balanced heat supply of the coke furnace are ensured, and the influence on the furnace wall caused by the fluctuation of the furnace temperature is avoided;
s3.2: the maintenance mode of repair personnel is improved, the individual section is managed, the furnace wall is responsible for maintaining and is responsible for the personnel, and the aim is to achieve the purposes of small repair without major repair, hot repair without cold repair;
s3.3: for the furnace number which is dug and supplemented, regularly checking and timely wiping and supplementing; the monitoring and adjustment of longitudinal and transverse braces and partial steel columns of the furnace top are organized in time, and the protection effect of furnace iron pieces on the furnace body is ensured.
2. The method for repairing the damaged wall surface of the furnace end of the stamp-charging coke oven according to claim 1, which is characterized in that: the specification of the aluminum silicate fiber board is 1000mm multiplied by 500mm multiplied by 50 mm.
3. The method for repairing the damaged wall surface of the furnace end of the stamp-charging coke oven according to claim 1, which is characterized in that: and the time for raising the temperature of the carbonization chamber furnace to 1100 ℃ is controlled to be 2-3 h.
4. The method for repairing the damaged wall surface of the furnace end of the stamp-charging coke oven according to claim 1, which is characterized in that: in step S2.4, the initial coal charge is 2/3 at normal level, and the turnaround time is 24 hours.
5. The method for repairing the damaged wall surface of the furnace end of the stamp-charging coke oven according to claim 1, which is characterized in that: the roller with the brake device is locked through the jackscrew.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210166549.2A CN114540050A (en) | 2022-02-23 | 2022-02-23 | Method for repairing damaged wall surface of furnace end of stamp-charging coke oven |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210166549.2A CN114540050A (en) | 2022-02-23 | 2022-02-23 | Method for repairing damaged wall surface of furnace end of stamp-charging coke oven |
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| Publication Number | Publication Date |
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| CN114540050A true CN114540050A (en) | 2022-05-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210166549.2A Pending CN114540050A (en) | 2022-02-23 | 2022-02-23 | Method for repairing damaged wall surface of furnace end of stamp-charging coke oven |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10195449A (en) * | 1997-01-07 | 1998-07-28 | Sumitomo Metal Ind Ltd | Repairing apparatus for oven wall of coke oven chamber |
| 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 |
-
2022
- 2022-02-23 CN CN202210166549.2A patent/CN114540050A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10195449A (en) * | 1997-01-07 | 1998-07-28 | Sumitomo Metal Ind Ltd | Repairing apparatus for oven wall of coke oven chamber |
| 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 |
Non-Patent Citations (1)
| Title |
|---|
| 刘生华等: "5.5m捣固焦炉炉头墙面损坏的修补", 山东冶金, vol. 37, no. 5, pages 71 - 72 * |
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Application publication date: 20220527 |
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