CN105087023A - Dry quenching furnace - Google Patents
Dry quenching furnace Download PDFInfo
- Publication number
- CN105087023A CN105087023A CN201510502981.4A CN201510502981A CN105087023A CN 105087023 A CN105087023 A CN 105087023A CN 201510502981 A CN201510502981 A CN 201510502981A CN 105087023 A CN105087023 A CN 105087023A
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- Prior art keywords
- quenching furnace
- dry quenching
- coke dry
- escape pipe
- straight section
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- 238000010791 quenching Methods 0.000 title claims abstract description 46
- 230000000171 quenching effect Effects 0.000 title claims abstract description 46
- 239000000571 coke Substances 0.000 claims description 40
- 238000009413 insulation Methods 0.000 claims description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- 230000006378 damage Effects 0.000 abstract description 4
- 206010016766 flatulence Diseases 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 26
- 238000001816 cooling Methods 0.000 description 11
- 239000011449 brick Substances 0.000 description 8
- 238000012423 maintenance Methods 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 239000011819 refractory material Substances 0.000 description 5
- 238000010276 construction Methods 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000005192 partition Methods 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910001208 Crucible steel Inorganic materials 0.000 description 1
- 239000000112 cooling gas Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 210000003127 knee Anatomy 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
- 230000003245 working effect Effects 0.000 description 1
Landscapes
- Coke Industry (AREA)
Abstract
The invention relates to a dry quenching furnace which comprises a dry quenching furnace body, wherein the dry quenching furnace body is divided into a straight segment and an inverted cone segment which is connected with the upper end of the straight segment; at least 10 uniformly distributed gas outlet pipes are communicated and connected along the circumference of the straight segment; the upper ends of the gas outlet pipes are connected with an annular gas collecting tube; and the annular gas collecting tube is connected with a gas delivery pipe. According to the invention, the problems of low service life and high use cost of the dry quenching furnace caused by the damage on a chute of the dry quenching furnace and damage of tympanite of an annular air flue are thoroughly solved. The dry quenching furnace provided by the invention is simple and firm in structure and convenient to maintain, use period is improved by at least two years, overhaul time is shortened to not more than 40 days from 75-90 days, and cost is reduced by 50% or more.
Description
Technical field
The present invention relates to a kind of pit kiln, belong to a kind of coke dry quenching furnace particularly.
Background technology
The domestic design for coke dry quenching furnace is the thinking of the Dry Quenching Technology along Japanese invention all the time, coke dry quenching furnace comprises the structure of cooling section, chute, annular passage, but because chute is the structure that more than 20 single bracket supports, stress is large, life-span generally only has 1-2, each replacing maintenance nearly 1,000,000 yuan of cost, and annular passage is owing to being flying shore, inside and outside differential pressure is large, easy appearance is abnormal collapses, the hundreds thousand of unit of each maintenance, and each coke dry quenching furnace overhaul cost is about 100-300 ten thousand yuan, time-consuming 75-90 days, impact is produced.
Patented technology document from retrieval: the 75t/h coke dry quenching furnace large-scale coke dry quenching furnace by now introduced from Baosteel, structure has the section of prestoring, chute, annular passage, cooling section; The more problems that domestic dry coke quenching chute, annular passage go out; Mainly be that the bracket of chute supports the weight of annular passage interior wall, pressure is large, is easily out of shape, peels off, bursts.The easy bulging of annular passage, to collapse.
Chinese patent CN200910219854.8 document, disclose and a kind ofly there is the annular passage of new texture and the dry of chute puts out stove, comprise annular passage interior wall, chute, it is that annular passage interior wall is suspended structure, be composited by suspending cooling cylinder, refractory brick, mould material and lagging material, interior wall entirety is hung in the metal construction of furnace shell by suspending cooling cylinder, the arranged outside refractory brick of annular passage interior wall, central authorities are cooling cylinders, between refractory brick and cooling cylinder, arrange lagging material, annular passage interior wall bottom arranges mould material.Arrange in chute or lattice partition wall is not set.What this structure still adopted is chute and annular air duct structure, and not only chute life cycle is short for it, and abnormal collapsing easily appears in annular passage, and also exist because it adopts suspending cooling cylinder, be difficult to bear high temperature impact, distortion can be caused, refractory materials cannot be adapted to, and make less effective.
Chinese patent CN200910219858.6 document, provides the dry of a kind of new texture and puts out stove, and it comprises cooling room, tiltedly flue, annular passage and the room that prestores, and it is that cooling room diameter is identical with the room diameter that prestores, the inner extension supporting of oblique flue; In annular passage, horizontal support is set, is provided with half high knee wall.There is the destruction problem that still can't resolve bracket in it.
Chinese patent CN201020665264.6 document, which provide and a kind of dryly put out stove, comprise outer walling, interior walling, bottom outer walling and interior walling between chute between masonry, be the room that prestores in described interior walling, for being looped around the outdoor annular passage that prestores between described interior walling and outer walling, along interior walling circumference, interior walling bottom interval is provided with one group of groove, the described room that prestores is communicated with annular passage by groove, along interior walling circumference, in above groove, between walling and outer walling, be arranged at intervals with one group of crossbeam.The pressure that in the middle part of interior walling and middle and upper part is born is maximum, and to the deformation constrain ability at middle part bottom interior walling, therefore by setting up crossbeam, power is passed to the steel structure casing outside outer walling and outer walling by crossbeam, though support and the deformation constrain of internal walling effectively can be ensure that, but because " bulge " phenomenon generally occurs in middle and lower part, crossbeam is difficult to the bulging stoping refractory materials, therefore solves " bulge " DeGrain.
Chinese patent CN200910248855.5, CN200920288492.3 document, include cooling room, tiltedly flue, annular passage, prestore room, it is, oblique mid-feather inside is refrigerating unit, and outside is refractory brick.Refrigerating unit adopts metal construction; Be provided with snakelike gas passage in refrigerating unit, snakelike gas passage is connected with outside gas pipeline by arm.Refrigerating unit top is provided with brick plate, the refractory materials of brick plate upper and lower part is divided into two parts.This structure can extend dry work-ing life of putting out stove chute partition wall, simplifies the dry method for maintaining putting out stove chute partition wall simultaneously, shortens maintenance cycle, decreases the investment of air importing and cooling gas return-flow system.But have that chute cooling easily increases stress rupture, the problem of annular passage still exists.
The applicant, through a large amount of analysis design mothod, as long as think that chute exists, with regard to there is the problem of stress concentration, having annular air duct structure, will there is inside and outside pressure reduction, easily cause the destruction of furnace lining.Want to tackle the problem at its root, the structure of coke dry quenching furnace must be changed.
Summary of the invention
The present invention is directed to the deficiency that prior art exists, provide a kind of structure simple, firm, easy to maintenance, life cycle is improved, and servicing time shortens, the coke dry quenching furnace that the cost of overhaul significantly reduces.
Realize the measure of above-mentioned purpose:
A kind of coke dry quenching furnace, comprise coke dry quenching furnace body, it is: the back taper section that coke dry quenching furnace body is divided into straight section and straight section upper end to connect; To interlink along week at straight section and be connected at least 10 uniform escape pipes, the upper end of escape pipe is connected with annular gas collector, and annular gas collector is connected with air shooter.
It is: the mounting inclination angle degree between the straight section of escape pipe and coke dry quenching furnace body is no more than 80 °.
Further: escape pipe mounting height be straight section height 1/2 ~ 4/5 between.
Preferably: escape pipe mounting height be straight section height 2/3 ~ 4/5 between.
It is: escape pipe inwall is connected with thermal insulation layer, air retaining wall in turn, and is set with water jacket outside escape pipe.
It is: annular gas collector is connected with thermal insulation layer and working lining in turn.
It is: the refractoriness of the air retaining wall of escape pipe and the working lining of annular gas collector is not less than 1500 DEG C.
Escape pipe owing to being provided with escape pipe on the straight section of coke dry quenching furnace body, and connects in annular gas collector by the present invention, that replaces chute and annular passage, and escape pipe outer shell adopts water-cooled metal structure; Gas enters annular gas collector by escape pipe, and annular gas collector instead of the function of annular passage.But its supporting structure is independently, there is not problem of stress concentration; Build by laying bricks or stones and be all in direct tube section and carry out, very fast, do not have high build chute by laying bricks or stones cost and building process slowly.
The present invention compared with prior art, thoroughly can solve dry quenched coke oven chute to destroy, annular passage bulging is destroyed and is caused the coke dry quenching furnace life-span low, the problem that use cost is high, its structure is simple, firm, and easy to maintenance, life cycle can improve at least 2 years, the overhaul time shortens within 40 days by original 75-90 days, cost reduction more than 50%.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is the plan structure schematic diagram of Fig. 1;
Fig. 3 is the mounting structure schematic diagram between the straight section of escape pipe and coke dry quenching furnace body in Fig. 1;
Fig. 4 is the structural representation of escape pipe in Fig. 1;
Fig. 5 is the structural representation of annular gas collector in Fig. 1;
In figure: 1-coke dry quenching furnace body, 2-straight section, 3-back taper section, 4-fire door, 5-escape pipe, 6-annular gas collector, 7-air shooter, 8-thermal insulation layer, 9-air retaining wall, 10-water jacket, 11-working lining.
Embodiment
Below in conjunction with accompanying drawing, the present invention is described in detail:
A kind of coke dry quenching furnace, comprises coke dry quenching furnace body 1, and its coke dry quenching furnace body 1 is divided into the fire door 4 that the back taper section 3 of straight section 2 and the connection of straight section 2 upper end and back taper section 3 are processed; Bolt or welding process is adopted to be connected with at least 10 uniform escape pipes 5 at straight section 2 along Zhou Xiangtong, mounting inclination angle degree between the straight section 2 of escape pipe 5 and coke dry quenching furnace body 1 is no more than 80 °, and escape pipe 5 mounting height is 1/2 or 2/3 or 4/5 of straight shape 2 height, the upper end of escape pipe 5 is welded to connect with annular gas collector 6 and communicates, and is welded to connect with annular gas collector 6 air shooter 7 communicated.
Escape pipe 5 inwall adopts successively bonding or screw be connected with air retaining wall 9 that thermal insulation layer 8 and refractoriness are not less than the refractory material of 1500 DEG C, and be provided with water jacket 10 in steel construction outside escape pipe 5.
Annular gas collector is connected with in turn adopt bonding or screw to be connected with working lining 11 that thermal insulation layer 8 and refractoriness are not less than the refractory material of 1500 DEG C.
The material selection cast copper of escape pipe 5 or cast steel or ironcasting.
Principle of work: the maximum feature of coke dry quenching furnace of the present invention is exactly change the chute bracket design of existing coke dry quenching furnace and the structure of annular passage, eliminate the stress concentration of chute bracket and the excessive problem of stress, eliminate the design of annular passage, there is no the inside and outside differential pressure of interior wall.By arranging at least 10 uniform escape pipes 5 at coke dry quenching furnace direct tube section, mounting inclination angle degree between the straight section 2 of escape pipe 5 and coke dry quenching furnace body 1 is no more than 80 °, and escape pipe 5 mounting height is 1/2 or 2/3 or 4/5 of straight shape 2 height, the upper end of escape pipe 5 is welded to connect with annular gas collector 6 and communicates.This part just instead of chute and bracket, and it does not exist the large pressure in top and stress concentration, stressed together with metal construction shell, has completely abolished the design of chute and bracket.Be outside equipped with annular gas collector at dry coke quenching, the hot gas of being discharged by air shooter after accepting coke dry coke quenching, this part structure instead of the function of annular passage.Escape pipe inwall is connected with thermal insulation layer, air retaining wall in turn, and is set with water jacket outside escape pipe; Annular gas collector is connected with thermal insulation layer and working lining in turn; The refractoriness of the air retaining wall of escape pipe and the working lining of annular gas collector is not less than 1500 DEG C.Such design ensure that the conveying of hot gas and the high temperature life of furnace lining, and also convenient reparation is changed, time shorten.Gas in straight section 2 enters annular gas collector 6 through escape pipe 5, at the air shooter 7 on annular gas collector 6, gas is sent into steam boiler generating.
This embodiment is only the best and exemplifies, the restricted enforcement not to technical solution of the present invention.
Claims (7)
1. a coke dry quenching furnace, comprises coke dry quenching furnace body, it is characterized in that: the back taper section that coke dry quenching furnace body is divided into straight section and straight section upper end to connect; To interlink along week at straight section and be connected at least 10 uniform escape pipes, the upper end of escape pipe is connected with annular gas collector, and annular gas collector is connected with air shooter.
2. a kind of coke dry quenching furnace as claimed in claim 1, is characterized in that: the mounting inclination angle degree between the straight section of escape pipe and coke dry quenching furnace body is no more than 80 °.
3. a kind of coke dry quenching furnace as claimed in claim 1, is characterized in that: escape pipe mounting height be straight section height 1/2 ~ 4/5 between.
4. a kind of coke dry quenching furnace as claimed in claim 1, is characterized in that: escape pipe mounting height be straight section height 2/3 ~ 4/5 between.
5. a kind of coke dry quenching furnace as claimed in claim 1, is characterized in that: escape pipe inwall is connected with thermal insulation layer, air retaining wall in turn, and is set with water jacket outside escape pipe.
6. a kind of coke dry quenching furnace as claimed in claim 1, is characterized in that: annular gas collector is connected with thermal insulation layer and working lining in turn.
7. a kind of coke dry quenching furnace as described in claim 1 or 5 or 6, is characterized in that: the refractoriness of the air retaining wall of escape pipe and the working lining of annular gas collector is not less than 1500 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510502981.4A CN105087023B (en) | 2015-08-17 | 2015-08-17 | A kind of coke dry quenching furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510502981.4A CN105087023B (en) | 2015-08-17 | 2015-08-17 | A kind of coke dry quenching furnace |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105087023A true CN105087023A (en) | 2015-11-25 |
| CN105087023B CN105087023B (en) | 2017-07-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510502981.4A Expired - Fee Related CN105087023B (en) | 2015-08-17 | 2015-08-17 | A kind of coke dry quenching furnace |
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| Country | Link |
|---|---|
| CN (1) | CN105087023B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105694922A (en) * | 2016-03-11 | 2016-06-22 | 烟台大学 | Quenching furnace adopting novel structure |
| CN108624338A (en) * | 2017-03-17 | 2018-10-09 | 五冶集团上海有限公司 | A kind of especially big Formed Coke Furnace gas gathering system installation method |
| CN108913169A (en) * | 2018-09-10 | 2018-11-30 | 中冶焦耐(大连)工程技术有限公司 | The coke dry quenching furnace and its working method of room are prestored with water cooling support frame and annular |
| CN111171844A (en) * | 2019-12-27 | 2020-05-19 | 中冶焦耐(大连)工程技术有限公司 | Dry quenching furnace structure and coke cooling method in dry quenching furnace |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2391379C1 (en) * | 2008-11-20 | 2010-06-10 | Государственное образовательное учреждение высшего профессионального образования "Сибирский государственный индустриальный университет" | Dry coke quenching method |
| CN203741268U (en) * | 2014-03-07 | 2014-07-30 | 北京华泰焦化工程技术有限公司 | Dry quenching equipment |
| CN203866244U (en) * | 2014-06-06 | 2014-10-08 | 武汉钢铁(集团)公司 | Dry coke quenching furnace |
| CN204185430U (en) * | 2014-11-12 | 2015-03-04 | 中冶焦耐工程技术有限公司 | A kind of packaged type dry coke quenching stove |
| CN104650930A (en) * | 2013-11-18 | 2015-05-27 | 上海梅山钢铁股份有限公司 | Dry quenching air introduction control method |
-
2015
- 2015-08-17 CN CN201510502981.4A patent/CN105087023B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2391379C1 (en) * | 2008-11-20 | 2010-06-10 | Государственное образовательное учреждение высшего профессионального образования "Сибирский государственный индустриальный университет" | Dry coke quenching method |
| CN104650930A (en) * | 2013-11-18 | 2015-05-27 | 上海梅山钢铁股份有限公司 | Dry quenching air introduction control method |
| CN203741268U (en) * | 2014-03-07 | 2014-07-30 | 北京华泰焦化工程技术有限公司 | Dry quenching equipment |
| CN203866244U (en) * | 2014-06-06 | 2014-10-08 | 武汉钢铁(集团)公司 | Dry coke quenching furnace |
| CN204185430U (en) * | 2014-11-12 | 2015-03-04 | 中冶焦耐工程技术有限公司 | A kind of packaged type dry coke quenching stove |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105694922A (en) * | 2016-03-11 | 2016-06-22 | 烟台大学 | Quenching furnace adopting novel structure |
| CN105694922B (en) * | 2016-03-11 | 2019-01-08 | 烟台大学 | A kind of new structure quenching furnace |
| CN108624338A (en) * | 2017-03-17 | 2018-10-09 | 五冶集团上海有限公司 | A kind of especially big Formed Coke Furnace gas gathering system installation method |
| CN108913169A (en) * | 2018-09-10 | 2018-11-30 | 中冶焦耐(大连)工程技术有限公司 | The coke dry quenching furnace and its working method of room are prestored with water cooling support frame and annular |
| CN108913169B (en) * | 2018-09-10 | 2024-01-30 | 中冶焦耐(大连)工程技术有限公司 | Dry quenching furnace with water-cooling support frame and annular pre-chamber and working method thereof |
| CN111171844A (en) * | 2019-12-27 | 2020-05-19 | 中冶焦耐(大连)工程技术有限公司 | Dry quenching furnace structure and coke cooling method in dry quenching furnace |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105087023B (en) | 2017-07-07 |
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| PB01 | Publication | ||
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| TR01 | Transfer of patent right |
Effective date of registration: 20170711 Address after: 430083 Qingshan District, Hubei, Wuhan factory before the door No. 2 Patentee after: WUHAN IRON AND STEEL Co.,Ltd. Address before: 430080 Wuhan, Hubei Friendship Road, No. 999, Wuchang Patentee before: WUHAN IRON AND STEEL (GROUP) Corp. |
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| TR01 | Transfer of patent right | ||
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Granted publication date: 20170707 |