CN114989837B - Method for disassembling and taking off dry quenching furnace refractory - Google Patents
Method for disassembling and taking off dry quenching furnace refractory Download PDFInfo
- Publication number
- CN114989837B CN114989837B CN202210590712.8A CN202210590712A CN114989837B CN 114989837 B CN114989837 B CN 114989837B CN 202210590712 A CN202210590712 A CN 202210590712A CN 114989837 B CN114989837 B CN 114989837B
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- furnace
- disassembling
- hanging scaffold
- dry quenching
- fixed hanging
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- 238000010791 quenching Methods 0.000 title claims abstract description 74
- 230000000171 quenching effect Effects 0.000 title claims abstract description 74
- 238000000034 method Methods 0.000 title claims abstract description 23
- 239000011819 refractory material Substances 0.000 claims abstract description 46
- 238000001816 cooling Methods 0.000 claims abstract description 30
- 239000000571 coke Substances 0.000 claims description 23
- 229910000831 Steel Inorganic materials 0.000 claims description 21
- 239000010959 steel Substances 0.000 claims description 21
- 239000000463 material Substances 0.000 claims description 14
- 238000004140 cleaning Methods 0.000 claims description 11
- 239000002699 waste material Substances 0.000 claims description 11
- 230000003014 reinforcing effect Effects 0.000 claims description 8
- 239000000428 dust Substances 0.000 claims description 5
- 238000007599 discharging Methods 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
- 238000010276 construction Methods 0.000 abstract description 7
- 239000011449 brick Substances 0.000 description 6
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 2
- 238000005266 casting Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000007790 scraping Methods 0.000 description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004939 coking Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 238000006467 substitution reaction Methods 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
- C10B39/00—Cooling or quenching coke
- C10B39/02—Dry cooling outside the oven
-
- 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
- C10B39/00—Cooling or quenching coke
-
- 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
- C10B45/00—Other details
-
- 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
-
- 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
- Y02P20/129—Energy recovery, e.g. by cogeneration, H2recovery or pressure recovery turbines
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 relates to a method for disassembling and taking off a dry quenching furnace refractory material, which adopts the cooperation of a fixed hanging scaffold and a disassembling and taking off machine to disassemble and take off the refractory material; after the disassembling and assembling machine and the fixed hanging scaffold are integrally hoisted to a designated height through the hoisting device, the fixed hanging scaffold is fixedly connected with the furnace wall at the corresponding position, and then disassembling and assembling operations of the pre-stored section, the inclined channel area and the cooling section refractory materials are sequentially carried out. According to the invention, the lifting fixed hanging scaffold is arranged in the dry quenching furnace to fix the detaching and raking machine, so that the detaching and raking of the refractory materials in the dry quenching furnace from top to bottom is realized, the detaching and raking construction safety and the mechanization degree of the refractory materials in the dry quenching furnace are improved, the labor intensity of detaching and raking the refractory materials is reduced, the construction time is shortened, and the overall efficiency of overhauling the dry quenching furnace is improved.
Description
Technical Field
The invention relates to the technical field of overhaul of a coke dry quenching device, in particular to a method for disassembling and raking a coke dry quenching furnace refractory.
Background
The dry quenching technology is an energy-saving, environment-friendly and resource recycling project which is promoted in the coking industry. The long service life of the dry quenching is a higher requirement on a dry quenching system by the stable operation of a large-scale blast furnace, and is also an important mark for the stable exertion of the dry quenching efficiency. Since 2001, the technology of dry quenching in China rapidly develops, and the number of the dry quenching devices which are put into operation in China at present is more than 250.
The dry quenching furnace masonry belongs to a shaft kiln type structure and is a barrel-shaped vertical masonry in a positive pressure state. The furnace body is respectively provided with a pre-storing section, a chute section and a cooling section from top to bottom. The whole dry quenching furnace is surrounded by an iron shell, the inner layer is built by adopting different refractory bricks, and some parts also use refractory casting materials.
After the coke dry quenching furnace is put into production for one year, refractory materials at different positions in the coke dry quenching furnace can be damaged, broken and even collapsed, and the coke dry quenching furnace needs to be stopped for maintenance at different degrees. At present, the dry quenching furnace device needs to be regularly overhauled every year, the refractory materials peeled off from the surfaces of all parts are repaired, the middle repair is needed about 3 years of operation, and all the refractory materials need to be removed and replaced, namely, the overhaul is needed about 10 years of operation. In recent years, the early-built dry quenching furnace successively enters a refractory material overhaul period, and the overhaul speed and quality of the dry quenching furnace directly influence the longevity and the use efficiency of the later stage of the dry quenching device.
The currently commonly adopted overhaul mode of the dry quenching furnace is as follows: after the dry quenching furnace is shut down and cooled, constructors enter the dry quenching furnace through a manhole below the furnace wall, an operation bracket is built from bottom to top, the refractory materials are removed layer by layer through a manual and simple handheld device, and once the refractory material masonry structure in the dry quenching furnace is unstably collapsed, safety accidents are necessarily caused. Meanwhile, the stripping resistant material has the characteristics of more dust in the working environment, high working intensity and low stripping speed.
The Chinese patent application with publication number of CN107163956A discloses a rapid overhaul construction method for a dry quenching furnace lining, which utilizes the characteristics that a brick supporting plate is adopted between an inclined air duct and a cooling part to separate a refractory material of the dry quenching furnace lining and an expansion joint is reserved, and simultaneously removes refractory bricks of a pre-storing part and a cooling part to accelerate the process; and building a bearing platform and a protection platform, and simultaneously building a cooling part refractory brick and a diagonal duct refractory brick, wherein the cast stone plate of the lower cone hopper is removed and built simultaneously with the circular duct refractory brick. The Chinese patent publication No. CN106276030B discloses a method for transporting the overhaul demolishd waste of a dry quenching furnace, wherein a through blanking channel can be formed from the demolishment point to the ground from top to bottom, and the waste is directly poured to a waste accumulation platform or the ground after entering a blanking chute, so that the waste is transported to the waste accumulation platform or the ground from the demolishment point in one step. The Chinese patent publication No. CN105542800B discloses a dry quenching furnace lining overhaul construction method, which comprises the steps of removing waste lining brickworks above a chute area from top to bottom, simultaneously carrying out pre-stored section masonry and outward transportation of the waste lining brickworks, simultaneously carrying out upper cone section masonry and cooling section scaffold erection, simultaneously carrying out chute area masonry and cooling section removal, and simultaneously carrying out inner ring section masonry and cooling section masonry. The Chinese patent publication No. CN1101446C discloses a method and equipment for maintaining the cooling section of a coke dry quenching tank, wherein the maintenance method is to integrally cast refractory materials on the inner wall of the cooling section of which the lining of the refractory material is worn and peeled, and the thickness of a casting layer is 50-250 mm. The construction adopts integral slip form pouring, and the pouring material is high-alumina pouring material containing steel fibers. The integral pouring injection mold adopts a detachable integral lifting sliding mold.
In summary, the existing method for overhauling the coke dry quenching furnace focuses on the method, quality and speed of building in the furnace after the coke dry quenching furnace is disassembled, and no effective method is provided for the disassembly and assembly operation in the early stage of the overhauling of the coke dry quenching furnace.
Disclosure of Invention
The invention provides a method for disassembling and raking resistant materials of a dry quenching furnace, which is characterized in that a lifting fixed hanging scaffold is arranged in the dry quenching furnace to fix a disassembling and raking machine, so that the resistant materials are disassembled and raked from top to bottom in a region in the dry quenching furnace, the safety and the mechanization degree of the disassembling and raking construction of the resistant materials of the dry quenching furnace are improved, the labor intensity of the disassembling and raking of the resistant materials is reduced, the construction time is shortened, and the overall efficiency of overhaul of the dry quenching furnace is improved.
In order to achieve the above purpose, the invention is realized by adopting the following technical scheme:
a method for disassembling and scraping the dry quenching furnace refractory comprises the following steps:
(1) Discharging the coke cooled in the coke dry quenching furnace to the lower edge of an overhaul port, closing a lower flat gate, and opening the overhaul port at the lower part of the cooling section for constructors to enter and exit;
(2) Removing a furnace cover, a water seal cover and a dust removal pipeline at the top of the dry quenching furnace; setting up a temporary platform at the mouth of the dry quenching furnace, adding a reinforcing beam, and installing a hoisting device;
(3) A cooling section furnace wall at one side opposite to the overhaul port is provided with an operation window, and the area of the operation window is larger than that of the overhaul port;
(4) A constructor enters the furnace to build an operation platform, and the top surface of the operation platform is level with the lower edge of the cooling section;
(5) Adopting a fixed hanging scaffold and a disassembling and assembling machine to assemble and disassemble the refractory material;
(6) Fixing the disassembling and assembling machine to the fixed hanging scaffold;
(7) The disassembling and assembling machine and the fixed hanging scaffold are integrally hoisted to the bottom of the pre-stored section through a hoisting device, the fixed hanging scaffold is fixedly connected with the furnace wall at the corresponding position, and then disassembling and assembling operation of the pre-stored section refractory material is carried out;
(8) After the pre-stored section refractory materials are removed and cleared, the connection between the fixed hanging scaffold and the furnace wall is released, the fixed hanging scaffold and the removing and taking machine are integrally moved down to the bottom of the chute area through a hoisting device, and the fixed hanging scaffold is fixedly connected with the furnace wall at the corresponding position and then the refractory materials in the chute area are removed and taken off;
(9) After the disassembly and cleaning of the refractory material in the chute area are completed, the connection between the fixed hanging scaffold and the furnace wall is released, the fixed hanging scaffold and the disassembly and cleaning machine are integrally moved down to the bottom of the cooling section through the hoisting device, and the disassembly and cleaning of the refractory material in the cooling section are performed after the fixed hanging scaffold is fixedly connected with the furnace wall at the corresponding position.
In the step (4), the working platform consists of steel plates paved in full hall.
In the step (5), the fixed hanging scaffold is of a steel frame structure with a steel plate fully paved at the top, the steel plate and the steel frame are respectively hoisted into the furnace through a crane, and the assembly of the fixed hanging scaffold is completed in the furnace.
In the step (6), a crane is adopted to hoist the disassembling and assembling machine to the side of the dry quenching furnace, and the disassembling and assembling machine is moved into the furnace through a working window and fixed on a fixed hanging scaffold.
The detached refractory waste is cleared out of the furnace through a material conveying belt arranged on the operation platform and an operation window.
After the dry quenching furnace refractory materials are completely disassembled and raked, the fixed hanging scaffold, the disassembling and raking machine, the operation platform, the reinforcing beam and other temporary facilities are disassembled and cleaned by the cooperation of the hoisting device and the crane.
Compared with the prior art, the invention has the beneficial effects that:
1) The operation intensity of the disassembly and the assembly of the refractory material of the dry quenching furnace is effectively reduced, the disassembly and the assembly efficiency of the refractory material is improved, and the safety of the disassembly and the assembly of the refractory material is improved;
2) After the method is implemented, the time of the disassembly and the assembly operation of the refractory materials in the overhaul process of the coke dry quenching furnace is shortened from 360 hours to 144 hours, the disassembly and assembly efficiency is improved by 60 percent, the overhaul time of the coke dry quenching furnace is greatly shortened, and the quick recovery of the production capacity of the coke dry quenching furnace is facilitated.
Detailed Description
The invention relates to a method for disassembling and raking a coke dry quenching furnace refractory, which comprises the following steps:
(1) Discharging the coke cooled in the coke dry quenching furnace to the lower edge of an overhaul port, closing a lower flat gate, and opening the overhaul port at the lower part of the cooling section for constructors to enter and exit;
(2) Removing a furnace cover, a water seal cover and a dust removal pipeline at the top of the dry quenching furnace; setting up a temporary platform at the mouth of the dry quenching furnace, adding a reinforcing beam, and installing a hoisting device;
(3) A cooling section furnace wall at one side opposite to the overhaul port is provided with an operation window, and the area of the operation window is larger than that of the overhaul port;
(4) A constructor enters the furnace to build an operation platform, and the top surface of the operation platform is level with the lower edge of the cooling section;
(5) Adopting a fixed hanging scaffold and a disassembling and assembling machine to assemble and disassemble the refractory material;
(6) Fixing the disassembling and assembling machine to the fixed hanging scaffold;
(7) The disassembling and assembling machine and the fixed hanging scaffold are integrally hoisted to the bottom of the pre-stored section through a hoisting device, the fixed hanging scaffold is fixedly connected with the furnace wall at the corresponding position, and then disassembling and assembling operation of the pre-stored section refractory material is carried out;
(8) After the pre-stored section refractory materials are removed and cleared, the connection between the fixed hanging scaffold and the furnace wall is released, the fixed hanging scaffold and the removing and taking machine are integrally moved down to the bottom of the chute area through a hoisting device, and the fixed hanging scaffold is fixedly connected with the furnace wall at the corresponding position and then the refractory materials in the chute area are removed and taken off;
(9) After the disassembly and cleaning of the refractory material in the chute area are completed, the connection between the fixed hanging scaffold and the furnace wall is released, the fixed hanging scaffold and the disassembly and cleaning machine are integrally moved down to the bottom of the cooling section through the hoisting device, and the disassembly and cleaning of the refractory material in the cooling section are performed after the fixed hanging scaffold is fixedly connected with the furnace wall at the corresponding position.
In the step (4), the working platform consists of steel plates paved in full hall.
In the step (5), the fixed hanging scaffold is of a steel frame structure with a steel plate fully paved at the top, the steel plate and the steel frame are respectively hoisted into the furnace through a crane, and the assembly of the fixed hanging scaffold is completed in the furnace.
In the step (6), a crane is adopted to hoist the disassembling and assembling machine to the side of the dry quenching furnace, and the disassembling and assembling machine is moved into the furnace through a working window and fixed on a fixed hanging scaffold.
The detached refractory waste is cleared out of the furnace through a material conveying belt arranged on the operation platform and an operation window.
After the dry quenching furnace refractory materials are completely disassembled and raked, the fixed hanging scaffold, the disassembling and raking machine, the operation platform, the reinforcing beam and other temporary facilities are disassembled and cleaned by the cooperation of the hoisting device and the crane.
The technical scheme of the invention is implemented on the premise of providing a detailed implementation mode and a specific operation process, but the protection scope of the invention is not limited to the following examples.
[ example 1 ]
In the embodiment, taking the overhaul of a 140t/h dry quenching furnace as an example, the disassembling and raking machine adopts an excavator, and the process of disassembling and raking the refractory is as follows:
(1) Discharging the coke cooled in the coke dry quenching furnace to the lower edge of the overhaul port, and closing the lower flat gate to form an operation basic plane; 2 overhaul holes at the lower part of the cooling section are opened for constructors to enter and exit;
(2) Removing a furnace cover, a water seal cover and a dust removal pipeline at the top of the dry quenching furnace; setting up a temporary platform at the mouth of the dry quenching furnace, adding 2 reinforcing beams, and installing a hoisting device;
(3) A cooling section furnace wall at one side opposite to the overhaul port is provided with an operation window, and the area of the operation window is larger than that of the overhaul port;
(4) Opening a 2-position access hole at the lower part of the cooling section, putting constructors into the furnace to build an operation platform (+ 10.534 m), and paving full-scale steel plates with the thickness of 20 mm;
(5) Adopting a fixed hanging scaffold and a disassembling and assembling machine to assemble and disassemble the refractory material; the fixed hanging scaffold is of a steel frame structure with a steel plate fully paved at the top, the steel plate and the steel frame are respectively hoisted into the furnace through a 260t crane, and the assembly of the fixed hanging scaffold is completed in the furnace;
(6) The excavator is hoisted to the side of the dry quenching furnace by a 260t crane, moved into the furnace by a working window and fixed on a fixed hanging scaffold;
(7) The excavator and the fixed hanging scaffold are integrally hoisted to a pre-stored section (27.079-24.175 meters working surface) through a hoisting device, the fixed hanging scaffold is fixedly connected with a furnace wall at a corresponding position, and then the pre-stored section refractory material is detached;
(8) After the pre-stored section refractory materials are removed and cleared, the connection between the fixed hanging scaffold and the furnace wall is released, the fixed hanging scaffold and the excavator are integrally moved down to a chute area (24.175-15.260 meters working surface) through a winch device, and the fixed hanging scaffold is fixedly connected with the furnace wall at the corresponding position and then the refractory materials in the chute area are removed and cleared;
(9) After the disassembly and cleaning of the refractory materials in the chute area are completed, the connection between the fixed hanging scaffold and the furnace wall is released, the fixed hanging scaffold and the excavator are integrally moved down to a cooling section (15.260-10.534 m working surface) through a winch device, and the fixed hanging scaffold is fixedly connected with the furnace wall at the corresponding position and then the disassembly and cleaning of the refractory materials in the cooling section are performed;
(10) The disassembled refractory waste is cleared out of the furnace through a material conveying belt arranged on the operation platform and an operation window;
(11) After the dry quenching furnace refractory materials are completely disassembled and raked, the fixed hanging scaffold, the disassembling and raking machine, the operation platform, the reinforcing beam and other temporary facilities are disassembled and cleaned by matching a hoisting device with a 260t crane.
In the process of disassembling and scraping the dry quenching furnace refractory, the ground forklift is continuously matched with the coke quenching furnace.
The foregoing is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art, who is within the scope of the present invention, should make equivalent substitutions or modifications according to the technical scheme of the present invention and the inventive concept thereof, and should be covered by the scope of the present invention.
Claims (4)
1. The method for disassembling and taking off the dry quenching furnace refractory is characterized by comprising the following steps:
(1) Discharging the coke cooled in the coke dry quenching furnace to the lower edge of an overhaul port, closing a lower flat gate, and opening the overhaul port at the lower part of the cooling section for constructors to enter and exit;
(2) Removing a furnace cover, a water seal cover and a dust removal pipeline at the top of the dry quenching furnace; setting up a temporary platform at the mouth of the dry quenching furnace, adding a reinforcing beam, and installing a hoisting device;
(3) A cooling section furnace wall at one side opposite to the overhaul port is provided with an operation window, and the area of the operation window is larger than that of the overhaul port;
(4) A constructor enters the furnace to build an operation platform, and the top surface of the operation platform is level with the lower edge of the cooling section;
(5) Adopting a fixed hanging scaffold and a disassembling and assembling machine to assemble and disassemble the refractory material; the fixed hanging scaffold is a steel frame structure with a steel plate fully paved at the top, the steel plate and the steel frame are respectively hoisted into the furnace through a crane, and the assembly of the fixed hanging scaffold is completed in the furnace;
(6) Fixing the disassembling and assembling machine to the fixed hanging scaffold; lifting the disassembling and raking machine to the side of the dry quenching furnace by adopting a crane, moving the disassembling and raking machine into the furnace through a working window, and fixing the disassembling and raking machine on a fixed hanging scaffold;
(7) The disassembling and assembling machine and the fixed hanging scaffold are integrally hoisted to the bottom of the pre-stored section through a hoisting device, the fixed hanging scaffold is fixedly connected with the furnace wall at the corresponding position, and then disassembling and assembling operation of the pre-stored section refractory material is carried out;
(8) After the pre-stored section refractory materials are removed and cleared, the connection between the fixed hanging scaffold and the furnace wall is released, the fixed hanging scaffold and the removing and taking machine are integrally moved down to the bottom of the chute area through a hoisting device, and the fixed hanging scaffold is fixedly connected with the furnace wall at the corresponding position and then the refractory materials in the chute area are removed and taken off;
(9) After the disassembly and cleaning of the refractory material in the chute area are completed, the connection between the fixed hanging scaffold and the furnace wall is released, the fixed hanging scaffold and the disassembly and cleaning machine are integrally moved down to the bottom of the cooling section through the hoisting device, and the disassembly and cleaning of the refractory material in the cooling section are performed after the fixed hanging scaffold is fixedly connected with the furnace wall at the corresponding position.
2. The method for disassembling and assembling dry quenching furnace refractory according to claim 1, wherein in the step (4), the working platform is composed of steel plates laid in full hall.
3. The method for disassembling and raking resistant materials of coke dry quenching furnace according to claim 1, wherein the disassembled and raked resistant materials waste materials are cleared out of the furnace through a material conveying belt arranged on the working platform through a working window.
4. The method for disassembling and assembling the dry quenching furnace refractory according to claim 1, wherein after the dry quenching furnace refractory is completely disassembled and assembled, the fixed hanging scaffold, the disassembling and assembling machine, the operation platform, the reinforcing beam and other temporary facilities are disassembled and cleaned by matching a hoisting device and a crane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210590712.8A CN114989837B (en) | 2022-05-27 | 2022-05-27 | Method for disassembling and taking off dry quenching furnace refractory |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210590712.8A CN114989837B (en) | 2022-05-27 | 2022-05-27 | Method for disassembling and taking off dry quenching furnace refractory |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114989837A CN114989837A (en) | 2022-09-02 |
| CN114989837B true CN114989837B (en) | 2024-01-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210590712.8A Active CN114989837B (en) | 2022-05-27 | 2022-05-27 | Method for disassembling and taking off dry quenching furnace refractory |
Country Status (1)
| Country | Link |
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| CN (1) | CN114989837B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1495056A (en) * | 1974-11-26 | 1977-12-14 | Hartung Kuhn & Co Maschf | Closed container wagon suitable for transporting hot coke |
| CN102492439A (en) * | 2011-11-25 | 2012-06-13 | 攀钢集团工程技术有限公司 | Method for replacement of bracket brick in chute zone of coke dry quenching furnace |
| CN105542800A (en) * | 2015-12-15 | 2016-05-04 | 攀钢集团工程技术有限公司 | Construction method for heavy maintenance of coke dry quenching furnace liner |
| CN112049462A (en) * | 2020-08-07 | 2020-12-08 | 新兴铸管股份有限公司 | Mechanical dismantling process for high-altitude building |
-
2022
- 2022-05-27 CN CN202210590712.8A patent/CN114989837B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1495056A (en) * | 1974-11-26 | 1977-12-14 | Hartung Kuhn & Co Maschf | Closed container wagon suitable for transporting hot coke |
| CN102492439A (en) * | 2011-11-25 | 2012-06-13 | 攀钢集团工程技术有限公司 | Method for replacement of bracket brick in chute zone of coke dry quenching furnace |
| CN105542800A (en) * | 2015-12-15 | 2016-05-04 | 攀钢集团工程技术有限公司 | Construction method for heavy maintenance of coke dry quenching furnace liner |
| CN112049462A (en) * | 2020-08-07 | 2020-12-08 | 新兴铸管股份有限公司 | Mechanical dismantling process for high-altitude building |
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| Publication number | Publication date |
|---|---|
| CN114989837A (en) | 2022-09-02 |
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