CN103234361B - Sintered ore cooling furnace - Google Patents
Sintered ore cooling furnace Download PDFInfo
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- CN103234361B CN103234361B CN201310128026.XA CN201310128026A CN103234361B CN 103234361 B CN103234361 B CN 103234361B CN 201310128026 A CN201310128026 A CN 201310128026A CN 103234361 B CN103234361 B CN 103234361B
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- 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
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Abstract
The invention discloses a sintered ore cooling furnace device. The device is composed of a pre-storage area, an annular air flue area, a chute area, a cooling area and an air chamber. High-temperature sintered ores are continuously and evenly distributed into a cooling furnace for cooling through a charging port above the pre-storage area by a material distribution device, high-temperature sintered ores are subjected to counter-flow heat exchange with low-temperature air blown from the bottom of the furnace in the cooling area of the cooling furnace, sintered ores are cooled to below 180 DEG C, low-temperature ores are discharged by a discharging device, the low-temperature air is heated to about 600 DEG C through counter-flow heat exchange and enters a waste heat recycling system through an air outlet, and hot air and hot sintered ores are effectively sealed inside the cooling furnace in the whole process. By the aid of the device, on the premise that the quality of sintered ores is guaranteed or improved and the return fine rate is reduced, the efficiency of recycling of waste heat of sintered ores is improved to the maximum extent.
Description
Technical field
The present invention relates to a kind of cooling device, relate to a kind of sintering deposit cool furnace specifically.
Background technology
China is energy resource consumption big country, and for wideling popularize energy-conserving and environment-protective technology, improve comprehensive utilization rate of energy source, country proposes a series of encouragement and preferential policy.Steel and iron industry is AND ENERGY RESOURCES CONSUMPTION IN CHINA rich and influential family, accounts for 15% of national total energy consumption, in steel manufacture process, and the energy consumption of sintering circuit occupies the second, and in SINTERING PRODUCTION, heat sinter sensible heat accounts for more than 40% of overall heat consumption, and sintered, energy saving is very important.High efficiente callback utilizes sintering mine sensible heat to be the effective way improving steel and iron industry efficiency.
Current, the cooling of China sintering deposit and heat recovery mainly adopt the cold or band refrigeration technique of ring, namely the high temperature sintering ore deposit after forming by a firing from sintering machine enters central cooler or belt-cooling machine through blanking groove after fragmentation, Cryogenic air is blown into central cooler or belt-cooling machine by air blast, low-temperature sintering ore deposit high temperature sintering ore deposit being cooled to less than 150 DEG C is discharged to transportation system, central cooler or belt-cooling machine high temperature section cooling-air reclaim through flue gas cover, enter waste heat recovery device.
When adopting the above-mentioned sintering deposit type of cooling, UTILIZATION OF VESIDUAL HEAT IN has following shortcoming: 1. waste heat parameter fluctuation is large, jeopardizes bootstrap system safety; 2. system air leakage problem is difficult to solve, and utilization rate of waste heat decay is fast, and flue dust leaks and pollutes larger to operating environment; 3. flue-gas temperature lower (general 300 DEG C ~ 400 DEG C), utilization rate of waste heat is low.
Adopt the cooling of stove formula to solve the problem, and traditional cool furnace structure also also exist following problem: 1. annular passage inner ring is easily caved in; 2. chute district bracket brick easily ftractures, caves in, weares and teares; 3. cooling zone refractory brick easily weares and teares.
Summary of the invention
Content of the present invention is to solve above-mentioned technical problem, a kind of sintering deposit cool furnace is provided, its structure is simple, in the cooling of high temperature sintering ore deposit and heat recovery link, in guarantee or improve sintering deposit quality under reducing the prerequisite of quantity of return mines, improve sintering deposit heat recovery efficiency to greatest extent, solve the Gas Parameters fluctuation existed in the cooling of current high temperature sintering ore deposit and UTILIZATION OF VESIDUAL HEAT IN process, system air leakage and the problem such as utilization rate of waste heat is low, solve cool furnace structure annular passage inner ring easily to cave in simultaneously, chute district bracket brick easily ftractures wearing and tearing of caving in, the problems such as cooling zone refractory brick easily weares and teares.
The technical solution adopted in the present invention is: a kind of sintering deposit cool furnace, comprise the district that prestores, annular air channel district, chute district and cooling zone and air compartment, the periphery in the described district that prestores is provided with annular air channel district, is disposed with chute district, cooling zone and air compartment from top to bottom below the described district that prestores.
Described annular air channel district comprises steel structure casing I, brick structure body of wall I and air regulating board, ceramic fiber blanket is filled with between steel structure casing I and brick structure body of wall I, described brick structure body of wall I comprises outer shroud body of wall, inner ring body of wall, rectangle partition wall, triangle partition wall, radial support post and hot air outlet, outer shroud body of wall and inner ring body of wall are built by laying bricks or stones integral at top, Formation cross-section is the toroidal cavity of N-shaped, toroidal cavity by rectangle partition wall and triangle partition wall be divided into two independently, symmetrical part.
The bottom in described annular air channel district and be provided with many radial support posts radially arranged between outer shroud body of wall and inner ring body of wall, radial support post is made up of stainless steel insert and refractory brick, and laying fireproof bricks is outer at stainless steel insert.
Be provided with air regulating board between described two adjacent radial support posts, air regulating board is stainless steel welded, and air regulating board outer surface is laid with castable refractory.
The described district that prestores comprises steel structure casing II and brick structure body of wall II, ceramic fiber blanket is filled with between steel structure casing II and brick structure body of wall II, the described top, district that prestores is taper, bottom is cylindrical, described taper is up-small and down-big taper shape, and conical top is provided with sintering deposit feeding mouth.
The steel structure casing II of the described district's cylindrical section that prestores and the steel structure casing I of annular air channel district inner ring body of wall form a ring seal space, this top of space is connected with the delivery port of water-cooling system, this space bottom communicates with the endoporus of the stainless steel insert of radial support post, the endoporus of the stainless steel insert of radial support post, is connected with the water inlet of the water-cooling system of body of heater outside by the steel structure casing I in annular air channel district.
Described chute district is up big and down small taper shape, chute district is made up of steel structure casing III and brick structure body of wall III, ceramic fiber blanket is filled with between steel structure casing III and brick structure body of wall III, described brick structure body of wall III is divided into conical masonry and chute to support two parts, chute supports and is made up of multiple support body of wall radially distributed, each support body of wall has multiple layer refractory brick vertically to build by laying bricks or stones to form, every layer of refractory brick be by multiple monoblock refractory brick diametrically level build by laying bricks or stones and form.
Described cooling zone is made up of steel structure casing IV and brick structure body of wall IV, between shell and body of wall, be also filled with ceramic fiber blanket, and brick structure body of wall IV comprises internal layer refractory brick and insulating brick, and wherein internal layer refractory brick is the taper shape setting of upper-thin-lower-thick.
Described air compartment comprises ipper air chamber and lower air chamber, is separated between ipper air chamber and lower air chamber by dividing plate.
Beneficial effect of the present invention:
1, structure of the present invention is simple, and the district that prestores that the present invention is arranged can store a certain amount of high temperature sintering ore deposit, can effectively improve sintering deposit quality, and avoids the fluctuation interrupting cigarette gentleness exhaust gas volumn in the system that causes in short-term for ore deposit;
2, prestore in the present invention the steel structure casing of district's cylindrical section and the steel structure casing of annular air channel district inner ring body of wall, drastically increase the structural strength of prestore district's cylindrical section and annular air channel district inner ring body of wall, the cooling of water flowing simultaneously effectively can control the thermal expansion of steel structure casing, prevent between steel structure casing and refractory brick marshalling, causing cracking because thermal expansion is inconsistent, prestore the steel structure casing of district's cylindrical section and the steel structure casing of annular air channel district inner ring body of wall, jointly bear the weight of prestore district's brick structure body of wall and annular air channel district inner ring body of wall, dramatically reduce the stress of chute district chute supporting brick, improve the service life of chute supporting brick,
3, annular air channel district of the present invention is provided with air regulating board, adjustable plate is along body of heater periphery, by adjusting the shielded area of air regulating board, change the sectional area of the ventilating duct between two adjacent radial support posts, flexible adjustment air quantity wind speed, ensure that in whole annular air channel district, pressure and air velocity are basically identical, avoid bias current; 0 degree, annular air channel district and 180 degree of directions are provided with twice partition wall, annular air channel is distinguished into two independently, symmetrical exhaust pass, flue gas stream is stablized;
4, cooling zone of the present invention internal layer refractory brick is the taper shape layout of upper-thin-lower-thick.Be distributed in body of heater because sintering deposit is cylindrical, so more downward, the pressure of ore to inwall is larger, weares and teares more serious, and this arrangement effectively can extend the service life of cooling zone brick structure body of wall;
5, the air compartment that bottom of the present invention is arranged divides upper and lower two air compartments, ipper air chamber's Cryogenic air cooling body of heater periphery material, lower air chamber's Cryogenic air cooling body of heater core material.This structure fabric wind is even, good cooling results;
6, in the present invention, sintering deposit relies on deadweight to move down in cool furnace, mutual slight frictional impact between ore deposit and ore deposit, to improving the uniformity of sintering deposit granularity and to improve its intensity highly beneficial;
7, the district's major part that prestores of the present invention is embedded among annular air channel district, shortens the whole height of cool furnace, decreases the weight of steel structure casing and internal refractory brick, significantly reduce equipment cost; Reduce the area of annular air channel district inner ring body of wall by express material simultaneously, drastically increase the life-span of annular air channel district inner ring body of wall; Reduce sintering deposit and export to difference in height between cool furnace entrance from sintering machine, effectively decrease the rate of return mine;
8, the present invention adopts the stove formula of sealing to cool, and cold air can be heated to about 600 DEG C and both improve cooling effectiveness, also improve the utilization ratio of waste heat.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is sectional view of the present invention;
Fig. 3 is background technology structural representation;
Mark in figure: 1, prestore district, 2, annular air channel district, 3, chute district, 4, cooling zone, 5, air compartment, 11, steel structure casing II, 12, brick structure body of wall II, 21, steel structure casing I, 22, brick structure body of wall I, 23, air regulating board, 221, outer shroud body of wall, 222, inner ring body of wall, 223, rectangle partition wall, 224, triangle partition wall, 225, radial support post, 226, hot air outlet, 31, steel structure casing III, 32, brick structure body of wall III, 321, conical masonry, 322, chute supports, 41, steel structure casing IV, 42, brick structure body of wall IV, 421, internal layer refractory brick, 422, insulating brick, 51, ipper air chamber, 52, lower air chamber.
Detailed description of the invention
As shown in the figure, a kind of sintering deposit cool furnace, comprise the district 1 that prestores, annular air channel district 2, chute district 3 and cooling zone 4 and air compartment 5, the periphery in the described district 1 that prestores is provided with annular air channel district 2, is disposed with chute district 3, cooling zone 4 and air compartment 5 from top to bottom below the described district 1 that prestores;
Annular air channel district 2 comprises steel structure casing I 21, brick structure body of wall I 22 and air regulating board 23, ceramic fiber blanket is filled with between steel structure casing I 21 and brick structure body of wall I 22, described brick structure body of wall I 22 comprises outer shroud body of wall 221, inner ring body of wall 222, rectangle partition wall 223, triangle partition wall 224, radial support post 225 and hot air outlet 226, outer shroud body of wall 221 and inner ring body of wall 222 are built by laying bricks or stones integral at top, Formation cross-section is the toroidal cavity of N-shaped, toroidal cavity is divided into two independently by rectangle partition wall 223 and triangle partition wall 224, symmetrical part, the bottom in annular air channel district 2 and be provided with many radial support posts 225 radially arranged between outer shroud body of wall 221 and inner ring body of wall 222, radial support post 225 is made up of the stainless steel insert of hollow and refractory brick, laying fireproof bricks is outer at stainless steel insert, be provided with air regulating board 23 between two adjacent radial support posts 225, air regulating board 23 is stainless steel welded, and air regulating board 23 outer surface has built castable refractory by laying bricks or stones, by adjusting the shielded area of air regulating board 23, the sectional area of the ventilating duct formed between two adjacent radial support posts 225 can be changed, thus play adjustment air flow rate and flow velocity,
The district 1 that prestores comprises steel structure casing II 11 and brick structure body of wall II 12, ceramic fiber blanket is filled with between steel structure casing II 11 and brick structure body of wall II 12, described prestore that top, district 1 is taper, bottom is cylindrical, described taper is up-small and down-big taper shape, and conical top is provided with sintering deposit feeding mouth;
Prestore the steel structure casing II 11 of district 1 cylindrical section and a steel structure casing I 21 formation ring seal space of annular air channel district 2 inner ring body of wall 222, this top of space is connected with the delivery port of water-cooling system, this space bottom communicates with the endoporus of the stainless steel insert of radial support post 225, the endoporus of the stainless steel insert of radial support post 225, be connected with the water inlet of the water-cooling system of body of heater outside by the steel structure casing I 21 in annular air channel district 2, the steel structure casing II 11 of described district 1 cylindrical section that prestores, the weight of prestore district 1 brick structure body of wall 12 and annular air channel district inner ring body of wall 222 is jointly born with the steel structure casing I 21 of annular air channel district 2 inner ring body of wall 222,
Chute district 3 is up big and down small taper shape or infundibulate, be made up of steel structure casing III 31 and brick structure body of wall III 32, ceramic fiber blanket is filled with between steel structure casing III 31 and brick structure body of wall III 32, described brick structure body of wall III 32 is divided into conical masonry 321 and chute to support 322 two parts, chute supports 322 and is made up of the support body of wall of the radial distribution of multiple one-tenth, each support body of wall has multiple layer refractory brick vertically to build by laying bricks or stones to form, every layer of refractory brick be by multiple monoblock refractory brick diametrically level build by laying bricks or stones and form;
Cooling zone 4 is made up of steel structure casing IV 41 and brick structure body of wall IV 42, also ceramic fiber blanket is filled with between shell and body of wall, brick structure body of wall IV 42 comprises internal layer refractory brick 421 and insulating brick 422, and wherein internal layer refractory brick 421 is the taper shape setting of upper-thin-lower-thick;
Air compartment 5 comprises ipper air chamber 51 and the lower air chamber 52 under being arranged on ipper air chamber 51.
In the present invention, the high temperature sintering ore deposit of about 750 DEG C is via distribution device, is distributed into cool furnace cooling by the charging aperture continuous uniform that prestores in district.Countercurrent flow is carried out in the cooling zone of cool furnace and the Cryogenic air blasted from furnace bottom in high temperature sintering ore deposit, and sintering deposit is cooled to less than 180 DEG C, and low temperature cold ore deposit is discharged through discharge device.Cryogenic air is heated to about 600 DEG C through countercurrent flow, enters waste heat recycling system through air outlet.Whole process hot-air and heat sinter are effectively sealed in cool furnace.
Claims (8)
1. a sintering deposit cool furnace, comprise the district that prestores (1), annular air channel district (2), chute district (3) and cooling zone (4) and air compartment (5), it is characterized in that: the periphery in the described district that prestores (1) is provided with annular air channel district (2), described below, the district that prestores (1) is disposed with chute district (3) from top to bottom, cooling zone (4) and air compartment (5), described annular air channel district (2) comprises steel structure casing I (21), brick structure body of wall I (22) and air regulating board (23), ceramic fiber blanket is filled with between steel structure casing I (21) and brick structure body of wall I (22), described brick structure body of wall I (22) comprises outer shroud body of wall (221), inner ring body of wall (222), rectangle partition wall (223), triangle partition wall (224), radial support post (225) and hot air outlet (226), outer shroud body of wall (221) and inner ring body of wall (222) are built by laying bricks or stones integral at top, Formation cross-section is the toroidal cavity of N-shaped, toroidal cavity is divided into two independently by rectangle partition wall (223) and triangle partition wall (224), symmetrical part.
2. a kind of sintering deposit cool furnace as claimed in claim 1, it is characterized in that: the bottom in described annular air channel district (2) and be provided with many radial support posts (225) radially arranged between outer shroud body of wall (221) and inner ring body of wall (222), radial support post (225) is made up of the stainless steel insert of hollow and refractory brick, and laying fireproof bricks is outer at stainless steel insert.
3. a kind of sintering deposit cool furnace as claimed in claim 2, it is characterized in that: between described two adjacent radial support posts (225), be provided with air regulating board (23), air regulating board (23) is stainless steel welded, and air regulating board (23) outer surface has built castable refractory by laying bricks or stones.
4. a kind of sintering deposit cool furnace as claimed in claim 1, it is characterized in that: the described district that prestores (1) comprises steel structure casing II (11) and brick structure body of wall II (12), ceramic fiber blanket is filled with between steel structure casing II (11) and brick structure body of wall II (12), the described district that prestores (1) top is taper, bottom is cylindrical, described taper is up-small and down-big taper shape, and conical top is provided with sintering deposit feeding mouth.
5. a kind of sintering deposit cool furnace as claimed in claim 4, it is characterized in that: the steel structure casing II (11) of the described district that prestores (1) cylindrical section and the steel structure casing I (21) of annular air channel district (2) inner ring body of wall (222) form a ring seal space, this top of space is connected with the delivery port of water-cooling system, this space bottom communicates with the endoporus of the stainless steel insert of radial support post (225), the endoporus of the stainless steel insert of radial support post (225), be connected with the water inlet of the water-cooling system of body of heater outside by the steel structure casing I (21) of annular air channel district (2).
6. a kind of sintering deposit cool furnace as claimed in claim 1, it is characterized in that: described chute district (3) is up big and down small taper shape, be made up of steel structure casing III (31) and brick structure body of wall III (32), ceramic fiber blanket is filled with between steel structure casing III (31) and brick structure body of wall III (32), described brick structure body of wall III (32) is divided into conical masonry (321) and chute to support (322) two parts, chute supports (322) and is made up of the support body of wall of the radial distribution of multiple one-tenth, each support body of wall is vertically built by laying bricks or stones by multiple layer refractory brick and is formed, every layer of refractory brick be by multiple monoblock refractory brick diametrically level build by laying bricks or stones and form.
7. a kind of sintering deposit cool furnace as claimed in claim 1, it is characterized in that: described cooling zone (4) are made up of steel structure casing IV (41) and brick structure body of wall IV (42), also ceramic fiber blanket is filled with between steel structure casing IV (41) and brick structure body of wall IV (42), brick structure body of wall IV (42) comprises internal layer refractory brick (421) and insulating brick (422), and the taper shape that wherein internal layer refractory brick (421) is upper-thin-lower-thick is arranged.
8. a kind of sintering deposit cool furnace as claimed in claim 1, is characterized in that: the lower air chamber (52) under described air compartment (5) comprises ipper air chamber (51) and is arranged on ipper air chamber (51).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201310128026.XA CN103234361B (en) | 2013-04-15 | 2013-04-15 | Sintered ore cooling furnace |
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| CN201310128026.XA CN103234361B (en) | 2013-04-15 | 2013-04-15 | Sintered ore cooling furnace |
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| CN103234361A CN103234361A (en) | 2013-08-07 |
| CN103234361B true CN103234361B (en) | 2015-07-15 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| EP3418661A1 (en) | 2017-06-23 | 2018-12-26 | Primetals Technologies Austria GmbH | Input device for bulk material |
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| CN103424001B (en) * | 2013-08-08 | 2015-07-01 | 西安交通大学 | High-temperature material vertical cooler and waste heat using system |
| CN103868364A (en) * | 2014-02-27 | 2014-06-18 | 中国科学院力学研究所 | Furnace type cooling device |
| CN104048516A (en) * | 2014-06-23 | 2014-09-17 | 浙江大学 | Vertical-type spiral particle waste heat recycling device and method for sintering waste heat power generation system |
| CN104034176A (en) * | 2014-06-23 | 2014-09-10 | 浙江大学 | Vertical spiral distributary cooling and heat exchanging device and method for sintering waste heat power generating system |
| CN105605930B (en) * | 2016-03-15 | 2018-06-26 | 宝钢工程技术集团有限公司 | A kind of vertical cooling furnace feeder of sinter and air supply method |
| CN106367089A (en) * | 2016-08-30 | 2017-02-01 | 彭武星 | Uniform air distribution and uniform material discharge air-locking dry quenching or sinter cooling furnace |
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| CN109652101B (en) * | 2018-04-28 | 2020-07-31 | 郑州釜鼎热能技术有限公司 | Dry quenching furnace with furnace wall bearing airless chute structure in segmented mode |
| CN109813125A (en) * | 2019-03-18 | 2019-05-28 | 彭武星 | A kind of vertical cooling kiln of sinter of the uniform ventilation device of band |
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| JPS5925011B2 (en) * | 1977-06-03 | 1984-06-13 | 石川島播磨重工業株式会社 | Sinter cooling equipment |
| CN101349505A (en) * | 2007-07-16 | 2009-01-21 | 沈阳铝镁设计研究院 | Wall structure of anode roasting furnace for aluminum |
| CN101576351A (en) * | 2009-06-23 | 2009-11-11 | 河北理工大学 | Vertical sinter ore cooling machine capable of efficiently recycling sensible heat of sinter ores |
| CN102345981A (en) * | 2010-08-03 | 2012-02-08 | 刘柏谦 | Sintering ore cooling device and waste heat recovery system thereof |
| CN202141346U (en) * | 2011-06-27 | 2012-02-08 | 东北大学 | High efficiency recovery unit of sintering waste heat resource |
| CN203259017U (en) * | 2013-04-15 | 2013-10-30 | 中信重工机械股份有限公司 | Sinter cooling furnace |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3418661A1 (en) | 2017-06-23 | 2018-12-26 | Primetals Technologies Austria GmbH | Input device for bulk material |
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Inventor after: Wang Jisheng Inventor after: Wang Xiaoying Inventor after: Li Bo Inventor after: Cheng Bo Inventor after: Peng Yan Inventor after: Zhang Ye Inventor after: Wei Xiaolin Inventor after: Li Jianqiang Inventor after: Zhang Mingcan Inventor after: Pan Lisheng Inventor after: Li Shulei Inventor before: Wang Jisheng Inventor before: Cheng Bo Inventor before: Peng Yan Inventor before: Zhang Ye Inventor before: Qiao Wencun Inventor before: Li Jianqiang Inventor before: Zhang Mingcan Inventor before: Li Shulei Inventor before: Wang Xiaoying |
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Free format text: CORRECT: INVENTOR; FROM: WANG JISHENG CHENG BO PENG YAN ZHANG YE QIAO WENCUN LI JIANQIANG ZHANG MINGCAN LI SHULEI WANG XIAOYING TO: WANG JISHENG CHENG BO PENG YAN ZHANG YE WEI XIAOLIN LI JIANQIANG ZHANG MINGCAN PAN LISHENG LI SHULEI WANG XIAOYING LI BO |
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Effective date of registration: 20190723 Address after: 471003 Jianshe Road, Jianxi, Henan, No. 206, Patentee after: CITIC Heavy Industry Engineering Technology Co., Ltd. Address before: 471003 Jianshe Road, Jianxi, Henan, No. 206, Co-patentee before: Luoyang Mining Machinery Engineering Institute Co., Ltd. Patentee before: Citic Heavy Industries Co., Ltd. |