CN108624339A - A kind of winter coke dry quenching furnace annual overhaul heat preserving method - Google Patents
A kind of winter coke dry quenching furnace annual overhaul heat preserving method Download PDFInfo
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- CN108624339A CN108624339A CN201810446672.3A CN201810446672A CN108624339A CN 108624339 A CN108624339 A CN 108624339A CN 201810446672 A CN201810446672 A CN 201810446672A CN 108624339 A CN108624339 A CN 108624339A
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- Prior art keywords
- boiler
- water
- valve
- dry quenching
- coke dry
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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
- C10B39/00—Cooling or quenching coke
- C10B39/02—Dry cooling outside the oven
Abstract
The present invention relates to a kind of winter coke dry quenching furnace annual overhaul heat preserving methods, using boiler heat, provide heat source to coke dry quenching furnace, circulating fan, final dusting nitrogen valve, boiler main steam diffusion valve, main steam pressure force regulating valve, main stop valve are closed in coke dry quenching furnace blowing out；Boiler internal pipeline is protected with heat-barrier material；Water on oxygen-eliminating device, interruption are passed through deoxygenation low-pressure steam, 80 DEG C~90 DEG C of control oxygen-eliminating device water temperature；Hot water is passed through boiler in oxygen-eliminating device, and boiler vapor liquid level reaches water in 0mm stoppings；It is spaced starting trouble forced circulation pump；It opens the unrestrained water valve progress boiler of the unrestrained water valve of boiler water wall, the unrestrained water valve of light pipe evaporator, fin evaporator and discharges water in interval；Hot water is added by waterdrainage amount, 40 DEG C~45 DEG C of boiler internal temperature is kept, is taken boiler heat in coke dry quenching furnace to by disposable dust remover, it is 20 DEG C~30 DEG C to make coke dry quenching furnace in-furnace temperature always.Boiler heat source is stablized, convenient for construction.Avoid the security risk of former open fire heat preservation.
Description
Technical field
The present invention relates to coke dry quenching furnaces to repair field, more particularly to a kind of winter coke dry quenching furnace annual overhaul heat preserving method.
Background technology
Dry coke quenching annual overhaul is possible to catch up in winter, and when carrying out the work of dry coke quenching annual overhaul in winter, heat preservation is an important work
Make, temperature is too low to be unfavorable for constructing, and is had a certain impact simultaneously for dry coke quenching furnace body laying fireproof bricks etc., uses stove in the past
The modes such as son are kept the temperature, but effect is limited, and have larger danger.
Invention content
Technical problem to be solved by the invention is to provide a kind of winter coke dry quenching furnace annual overhaul heat preserving methods, and open fire is avoided to protect
Temperature ensures safe construction.
To achieve the above object, the present invention is realized using following technical scheme：
A kind of winter coke dry quenching furnace annual overhaul heat preserving method provides heat source, including following step using boiler heat to coke dry quenching furnace
Suddenly：
1) it by coke dry quenching furnace blowing out, closes circulating fan, close circulating fan inlet baffle, final dusting nitrogen valve is closed
It closes, boiler main steam diffusion valve is closed, and main steam pressure force regulating valve, main stop valve are closed；
2) boiler internal pipeline is protected with heat-barrier material；
3) water on oxygen-eliminating device, interruption are passed through deoxygenation low-pressure steam, 80 DEG C~90 DEG C of control oxygen-eliminating device water temperature；
4) hot water is passed through boiler in oxygen-eliminating device, and boiler vapor liquid level reaches water in 0mm stoppings；
5) it is spaced and starts within 4~5 hours a boiler forced-circulating pump, it is 15~20 minutes to start the time every time；
6) the unrestrained water valve of 4~5 hours opening boiler water walls, the unrestrained water valve of light pipe evaporator, fin evaporator is spaced to dredge
Discharging valve is primary, 10~15 minutes every time, carries out boiler and discharges water, boiler vapor liquid level stops putting after dropping to -200~-260mm
Water；
7) after discharging water, boiler adds hot water by the waterdrainage amount of step 6), keeps 40 DEG C~45 DEG C of boiler internal temperature, passes through
Disposable dust remover takes boiler heat in coke dry quenching furnace to, and it is 20 DEG C~30 DEG C to make coke dry quenching furnace in-furnace temperature always.
Compared with prior art, the beneficial effects of the invention are as follows：
1, avoid being kept the temperature using open fire, avoid catch fire, the security risks such as gas poisoning.
2, boiler heat source is stablized, and heat is higher, convenient for construction.
Description of the drawings
Fig. 1 is coke dry quenching furnace process schematic representation.
Specific implementation mode
The specific implementation mode of the present invention is further illustrated below in conjunction with the accompanying drawings：
A kind of winter coke dry quenching furnace annual overhaul heat preserving method provides heat source, including following step using boiler heat to coke dry quenching furnace
Suddenly：
1) it by coke dry quenching furnace blowing out, closes circulating fan, close circulating fan inlet baffle, final dusting nitrogen valve is closed
It closes, boiler main steam diffusion valve is closed, and main steam pressure force regulating valve, main stop valve are closed；
2) boiler internal pipeline is protected with heat-barrier material；
3) water on oxygen-eliminating device, interruption are passed through deoxygenation low-pressure steam, 80 DEG C~90 DEG C of control oxygen-eliminating device water temperature；
4) hot water is passed through boiler in oxygen-eliminating device, and boiler vapor liquid level reaches water in 0mm stoppings；
5) it is spaced and starts within 4~5 hours a boiler forced-circulating pump, it is 15~20 minutes to start the time every time；
6) the unrestrained water valve of 4~5 hours opening boiler water walls, the unrestrained water valve of light pipe evaporator, fin evaporator is spaced to dredge
Discharging valve is primary, 10~15 minutes every time, carries out boiler and discharges water, boiler vapor liquid level stops putting after dropping to -200~-260mm
Water；
7) after discharging water, boiler adds hot water by the waterdrainage amount of step 6), keeps 40 DEG C~45 DEG C of boiler internal temperature, passes through
Disposable dust remover takes boiler heat in coke dry quenching furnace to, and it is 20 DEG C~30 DEG C to make coke dry quenching furnace in-furnace temperature always.
Embodiment
A kind of winter coke dry quenching furnace annual overhaul heat preserving method provides heat source, including following step using boiler heat to coke dry quenching furnace
Suddenly：
1) it by coke dry quenching furnace blowing out, closes circulating fan, close circulating fan inlet baffle, by secondary filter nitrogen charging point valve
Door is closed, and boiler main steam diffuse channel diffusion valve is closed, and main steam line pressure-regulating valve, main stop valve are closed；
2) boiler internal pipeline is protected with heat insulation foam, personnel is avoided to be in direct contact generator tube scald；
3) by deaerated feedwater pump startup, to water on oxygen-eliminating device, oxygen-eliminating device steam-heated pipe line valve opening, by low-pressure steam
It is passed through oxygen-eliminating device, stops low-pressure steam after oxygen-eliminating device water temperature is increased to 90 DEG C and is passed through；When oxygen-eliminating device water temperature is less than 80 DEG C, weight
It is new to open oxygen-eliminating device steam-heated pipe line valve, it is passed through low-pressure steam, is operated repeatedly, 80 DEG C~90 DEG C of control oxygen-eliminating device water temperature；
4) by boiler feedwater pump startup, for the hot water of oxygen-eliminating device to boiler water filling, boiler vapor liquid level closes pot after reaching 0mm
Stove feed pump；
5) it is spaced and starts within 5 hours a boiler forced-circulating pump, it is 20 minutes to start the time every time；
6) it is spaced and opens within 4 hours the unrestrained water valve of boiler water wall, the unrestrained water valve of light pipe evaporator, the unrestrained water of fin evaporator
Valve is primary, 12~15 minutes every time, carries out boiler and discharges water, boiler vapor liquid level stops discharging water after dropping to -220mm；
7) after discharging water, boiler adds hot water by the waterdrainage amount of step 6), keeps 40 DEG C~45 DEG C of boiler internal temperature, passes through
Disposable dust remover takes boiler heat in coke dry quenching furnace to, and it is 20 DEG C~30 DEG C to make coke dry quenching furnace in-furnace temperature always.
Described above is only the basic principle of the present invention, is not imposed any restrictions to the present invention, every right according to the present invention
It carries out equivalent variations and modification, within the scope of the art of this patent protection scheme.
Claims (1)
1. a kind of winter coke dry quenching furnace annual overhaul heat preserving method, which is characterized in that utilize boiler heat, heat source, packet are provided to coke dry quenching furnace
Include following steps：
1) it by coke dry quenching furnace blowing out, closes circulating fan, close circulating fan inlet baffle, final dusting nitrogen valve is closed,
Boiler main steam diffusion valve is closed, and main steam pressure force regulating valve, main stop valve are closed；
2) boiler internal pipeline is protected with heat-barrier material；
3) water on oxygen-eliminating device, interruption are passed through deoxygenation low-pressure steam, 80 DEG C~90 DEG C of control oxygen-eliminating device water temperature；
4) hot water is passed through boiler in oxygen-eliminating device, and boiler vapor liquid level reaches water in 0mm stoppings；
5) it is spaced and starts within 4~5 hours a boiler forced-circulating pump, it is 15~20 minutes to start the time every time；
6) it is spaced and opens within 4~5 hours the unrestrained water valve of boiler water wall, the unrestrained water valve of light pipe evaporator, the unrestrained water of fin evaporator
Valve is primary, 10~15 minutes every time, carries out boiler and discharges water, boiler vapor liquid level stops discharging water after dropping to -200~-260mm；
7) after discharging water, boiler adds hot water by the waterdrainage amount of step 6), 40 DEG C~45 DEG C of boiler internal temperature is kept, by primary
Deduster takes boiler heat in coke dry quenching furnace to, and it is 20 DEG C~30 DEG C to make coke dry quenching furnace in-furnace temperature always.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810446672.3A CN108624339B (en) | 2018-05-11 | 2018-05-11 | Winter dry quenching furnace annual repair heat preservation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810446672.3A CN108624339B (en) | 2018-05-11 | 2018-05-11 | Winter dry quenching furnace annual repair heat preservation method |
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| Publication Number | Publication Date |
|---|---|
| CN108624339A true CN108624339A (en) | 2018-10-09 |
| CN108624339B CN108624339B (en) | 2020-09-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810446672.3A Active CN108624339B (en) | 2018-05-11 | 2018-05-11 | Winter dry quenching furnace annual repair heat preservation method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111706844A (en) * | 2020-05-12 | 2020-09-25 | 杨思国 | Civil high-efficiency heat accumulating type combustion boiler |
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| JP2001192662A (en) * | 2000-01-07 | 2001-07-17 | Nippon Steel Corp | Coke dry quenching facility |
| CN105509495A (en) * | 2016-01-24 | 2016-04-20 | 中能世华(北京)节能科技有限公司 | Energy-saving waste heat power generation system |
| CN106867549A (en) * | 2017-02-24 | 2017-06-20 | 中冶焦耐(大连)工程技术有限公司 | A kind of coke dry quenching boiler do not stop production realize maintenance method |
| CN106967448A (en) * | 2017-04-07 | 2017-07-21 | 安阳钢铁股份有限公司 | A kind of furnace drying method after the resistance to material large area replacing of dry quenching system |
| CN107366895A (en) * | 2016-05-12 | 2017-11-21 | 鞍钢股份有限公司 | A kind of method of quick-replaceable coke dry quenching boiler drum safety valve |
| CN207262396U (en) * | 2017-09-01 | 2018-04-20 | 西安华江环保科技股份有限公司 | A kind of dry coke quenching superpressure boiler therrmodynamic system |
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2018
- 2018-05-11 CN CN201810446672.3A patent/CN108624339B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001192662A (en) * | 2000-01-07 | 2001-07-17 | Nippon Steel Corp | Coke dry quenching facility |
| CN105509495A (en) * | 2016-01-24 | 2016-04-20 | 中能世华(北京)节能科技有限公司 | Energy-saving waste heat power generation system |
| CN107366895A (en) * | 2016-05-12 | 2017-11-21 | 鞍钢股份有限公司 | A kind of method of quick-replaceable coke dry quenching boiler drum safety valve |
| CN106867549A (en) * | 2017-02-24 | 2017-06-20 | 中冶焦耐(大连)工程技术有限公司 | A kind of coke dry quenching boiler do not stop production realize maintenance method |
| CN106967448A (en) * | 2017-04-07 | 2017-07-21 | 安阳钢铁股份有限公司 | A kind of furnace drying method after the resistance to material large area replacing of dry quenching system |
| CN207262396U (en) * | 2017-09-01 | 2018-04-20 | 西安华江环保科技股份有限公司 | A kind of dry coke quenching superpressure boiler therrmodynamic system |
Non-Patent Citations (2)
| Title |
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| 曹永方: "《干熄焦装置冬季烘炉管理存在的问题及对策》", 《硅谷》 * |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111706844A (en) * | 2020-05-12 | 2020-09-25 | 杨思国 | Civil high-efficiency heat accumulating type combustion boiler |
| CN111706844B (en) * | 2020-05-12 | 2022-09-02 | 佛山市道得金机电设备有限公司 | Civil high-efficiency heat accumulating type combustion boiler |
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| Publication number | Publication date |
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| CN108624339B (en) | 2020-09-29 |
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