CN103234361A - Sintered ore cooling furnace - Google Patents
Sintered ore cooling furnace Download PDFInfo
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- CN103234361A CN103234361A CN201310128026XA CN201310128026A CN103234361A CN 103234361 A CN103234361 A CN 103234361A CN 201310128026X A CN201310128026X A CN 201310128026XA CN 201310128026 A CN201310128026 A CN 201310128026A CN 103234361 A CN103234361 A CN 103234361A
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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, for wideling popularize the energy-conserving and environment-protective technology, improves comprehensive utilization of energy efficient, and country has proposed a series of encouragement and preferential policy.Steel and iron industry is the AND ENERGY RESOURCES CONSUMPTION IN CHINA rich and influential family, accounts for 15% of national total energy consumption, and in the steel manufacture process, the energy consumption of sintering circuit occupies the second, and the heat sinter sensible heat accounts for more than 40% of overall heat consumption in the SINTERING PRODUCTION, and sintered, energy saving is very important.It is the effective way that improves the steel and iron industry efficiency that high efficiente callback utilizes the sintering deposit sensible heat.
Current, cold or the band refrigeration technique of ring is mainly adopted in China's sintering deposit cooling and heat recovery, high temperature sintering ore deposit after namely forming by a firing from sintering machine enters central cooler or belt-cooling machine through fragmentation by blanking groove, Cryogenic air is blown into central cooler or belt-cooling machine by air blast, the low-temperature sintering ore deposit that the high temperature sintering ore deposit is cooled to below 150 ℃ is discharged to transportation system, central cooler or belt-cooling machine high temperature section cooling air reclaim through flue gas cover, enter the heat recovery device.
UTILIZATION OF VESIDUAL HEAT IN has following shortcoming when adopting the above-mentioned sintering deposit type of cooling: 1. the waste heat parameter fluctuation is big, jeopardizes bootstrap system safety; 2. system's problem of leaking out is difficult to solve, and the decay of UTILIZATION OF VESIDUAL HEAT IN efficient is fast, and flue dust leaks and pollutes bigger to operating environment; 3. flue-gas temperature lower (general 300 ℃～400 ℃), UTILIZATION OF VESIDUAL HEAT IN efficient is low.
Adopt the cooling of stove formula to address the above problem, and traditional cool furnace structure also exists following problem: 1. ring caves in easily in the annular passage; 2. chute district bracket brick ftractures easily, caves in, weares and teares; 3. cooling zone refractory brick weares and teares easily.
Summary of the invention
Content of the present invention is in order to solve above-mentioned technical problem, a kind of sintering deposit cool furnace is provided, it is simple in structure, in the cooling of high temperature sintering ore deposit and heat recovery link, guaranteeing or improving the sintering deposit quality and reduce under the prerequisite of quantity of return mines, improve sintering deposit heat recovery efficient to greatest extent, solve the Gas Parameters fluctuation that exists in the cooling of current high temperature sintering ore deposit and the UTILIZATION OF VESIDUAL HEAT IN process, problems such as system leaks out and UTILIZATION OF VESIDUAL HEAT IN efficient is low have solved simultaneously that ring caves in easily in the cool furnace structure annular passage, the easy wearing and tearing of caving in of ftractureing of chute district bracket brick, problems such as the easy wearing and tearing of cooling zone refractory brick.
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 described outer periphery that prestores the district is equipped with the annular air channel district, and the described below, district that prestores is disposed with chute district, cooling zone and air compartment from top to bottom.
Described annular air channel district comprises steel construction shell I, brick structure body of wall I and air regulating board, between steel construction shell I and brick structure body of wall I, be filled with ceramic fiber blanket, described brick structure body of wall I comprises outer shroud body of wall, interior ringwall body, rectangle partition wall, triangle partition wall, radial support post and hot air outlet, outer shroud body of wall and interior ringwall body are built by laying bricks or stones at the top and are integral, forming the cross section is the toroidal cavity of n type, toroidal cavity by rectangle partition wall and triangle partition wall be divided into two independently, the part of symmetry.
Be provided with many radial support posts that are radial arrangement between the bottom in described annular air channel district and outer shroud body of wall and the interior ringwall body, the radial support post is made up of stainless steel insert and refractory brick, and refractory brick is built by laying bricks or stones at the stainless steel insert skin.
Be provided with air regulating board between described two adjacent radial support posts, air regulating board is the stainless steel weldment, and the air regulating board outer surface is laid with castable refractory.
The described district that prestores comprises steel construction shell II and brick structure body of wall II, between steel construction shell II and brick structure body of wall II, be filled with ceramic fiber blanket, the described top, district that prestores is that taper, bottom are cylindrical, described taper is up-small and down-big taper shape, and conical top is provided with the sintering deposit feeding mouth.
The steel construction shell I of ringwall body forms a ring seal space in the steel construction shell II of the described district's cylindrical section that prestores and the annular air channel district, the delivery port of this top of space and water-cooling system is connected, this bottom, space 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 by the steel construction shell I in annular air channel district and the water inlet of the water-cooling system of body of heater outside.
Described chute district is up big and down small taper shape, the chute district is made up of steel construction shell III and brick structure body of wall III, between steel construction shell III and brick structure body of wall III, be filled with ceramic fiber blanket, described brick structure body of wall III is divided into conical masonry and chute supports two parts, chute supports to be made up of a plurality of support bodies of wall that radially distribute, each supports body of wall has the multiple layer refractory brick vertically to build by laying bricks or stones to form, and every layer of refractory brick is to be built by laying bricks or stones along the diametric(al) level by a plurality of monoblock refractory brick to form.
Described cooling zone is made up of steel construction shell IV and brick structure body of wall IV, also is filled with ceramic fiber blanket between shell and body of wall, 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 by dividing plate between ipper air chamber and the lower air chamber.
Beneficial effect of the present invention:
1, the present invention is simple in structure, and the district that prestores of setting of the present invention can store a certain amount of high temperature sintering ore deposit, can effectively improve the sintering deposit quality, and the fluctuation of cigarette gentleness exhaust gas volumn in the system that avoids in short-term interrupting causing for the ore deposit;
2, the steel construction shell of ringwall body in district's steel construction shell of cylindrical section and the annular air channel district prestores among the present invention, greatly improved the structural strength of ringwall body in prestore district's cylindrical section and the annular air channel district, the thermal expansion of steel construction shell can be effectively controlled in the cooling of water flowing simultaneously, prevent from causing ftractureing because thermal expansion is inconsistent between steel construction shell and the refractory brick marshalling, the steel construction shell of ringwall body in district's steel construction shell of cylindrical section and the annular air channel district prestores, bear the weight of ringwall body in prestore district's brick structure body of wall and the annular air channel district jointly, greatly alleviate the stress of chute district chute support brick, improved the service life that chute supports brick;
3, annular air channel of the present invention district is provided with air regulating board, adjustable plate is along the 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, adjust the air quantity wind speed flexibly, guarantee full annular air flue district's internal pressure and air velocity basically identical, avoid bias current; Annular air channel district 0 degree and 180 degree directions are provided with the twice partition wall, with annular air channel be distinguished into two independently, the exhaust pass of symmetry, flue gas stream is stablized;
4, cooling zone of the present invention internal layer refractory brick is that the taper shape of upper-thin-lower-thick is arranged.Because sintering deposit is cylindrical to be distributed in the body of heater, so more downward, ore is just more big to the pressure of inwall, and wearing and tearing are just more serious, and this arrangement can effectively prolong the service life of cooling zone brick structure body of wall;
5, the air compartment of bottom setting of the present invention divides two air compartments up and down, ipper air chamber's Cryogenic air cooling body of heater periphery material, and lower air chamber's Cryogenic air is cooled off body of heater core material.This structure cloth wind is even, good cooling results;
6, sintering deposit relies on deadweight to move down in cool furnace among the present invention, and mutual slight friction bump between ore deposit and the ore deposit is to the uniformity of improving the 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 the annular air channel district, has shortened the whole height of cool furnace, has reduced the weight of steel construction shell and internal refractory brick, has reduced equipment cost effectively; Reduced the area that the ringwall body is pushed by material in the annular air channel district simultaneously, the life-span of greatly having improved ringwall body in the annular air channel district; Reduce sintering deposit and exported to difference in height between the cool furnace entrance from sintering machine, effectively reduced the rate of return mine;
8, the present invention adopts the stove formula cooling of sealing, cold air can be heated to and both improve cooling effectiveness about 600 ℃, has also improved afterheat utilization efficient.
Description of drawings
Fig. 1 is structural representation of the present invention;
Fig. 2 is cutaway view of the present invention;
Fig. 3 is the background technology structural representation;
Mark among the figure: 1, the district that prestores, 2, the annular air channel district, 3, the chute district, 4, the cooling zone, 5, air compartment, 11, steel construction shell II, 12, brick structure body of wall II, 21, steel construction shell I, 22, brick structure body of wall I, 23, air regulating board, 221, the outer shroud body of wall, 222, interior ringwall body, 223, the rectangle partition wall, 224, the triangle partition wall, 225, the radial support post, 226, hot air outlet, 31, steel construction shell III, 32, brick structure body of wall III, 321, conical masonry, 322, chute supports, 41, steel construction shell IV, 42, brick structure body of wall IV, 421, internal layer refractory brick, 422, insulating brick, 51, ipper air chamber, 52, lower air chamber.
The specific embodiment
As shown in the figure, a kind of sintering deposit cool furnace, comprise prestore district 1, annular air channel district 2, chute district 3 and cooling zone 4 and air compartment 5, the described outer periphery that prestores district 1 is equipped with annular air channel district 2, and described 1 below, district that prestores is disposed with chute district 3, cooling zone 4 and air compartment 5 from top to bottom;
Annular air channel district 2 comprises steel construction shell I 21, brick structure body of wall I 22 and air regulating board 23, between steel construction shell I 21 and brick structure body of wall I 22, be filled with ceramic fiber blanket, described brick structure body of wall I 22 comprises outer shroud body of wall 221, interior ringwall body 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 interior ringwall body 222 are built by laying bricks or stones at the top and are integral, forming the cross section is the toroidal cavity of n type, toroidal cavity is divided into two independently by rectangle partition wall 223 and triangle partition wall 224, the part of symmetry, be provided with many radial support posts 225 that are radial arrangement between the bottom in annular air channel district 2 and outer shroud body of wall 221 and the interior ringwall body 222, radial support post 225 is made up of stainless steel insert and the refractory brick of hollow, and refractory brick is built by laying bricks or stones at the stainless steel insert skin; Be provided with air regulating board 23 between two adjacent radial support posts 225, air regulating board 23 is the stainless steel weldment, and air regulating board 23 outer surfaces have been built castable refractory by laying bricks or stones; By adjusting the shielded area of air regulating board 23, can change the sectional area of the ventilating duct that forms between two adjacent radial support posts 225, adjust air flow rate and flow velocity thereby play;
The district that prestores 1 comprises steel construction shell II 11 and brick structure body of wall II 12, between steel construction shell II 11 and brick structure body of wall II 12, be filled with ceramic fiber blanket, described 1 top, district that prestores is that taper, bottom are cylindrical, described taper is up-small and down-big taper shape, and conical top is provided with the sintering deposit feeding mouth;
The steel construction shell II 11 of district's 1 cylindrical section and the steel construction shell I 21 of annular air channel district 2 interior ringwall bodies 222 of prestoring forms a ring seal space, the delivery port of this top of space and water-cooling system is connected, this bottom, space 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, the water inlet of the steel construction shell I 21 by annular air channel district 2 and the water-cooling system of body of heater outside is connected, the weight that the steel construction shell I 21 of ringwall body 222 is born ringwall body 222 in prestore district's 1 brick structure body of wall 12 and the annular air channel district jointly in the steel construction shell II 11 of described district's 1 cylindrical section that prestores and the annular air channel district 2;
Chute district 3 is up big and down small taper shape or infundibulate, formed by steel construction shell III 31 and brick structure body of wall III 32, between steel construction shell III 31 and brick structure body of wall III 32, be filled with ceramic fiber blanket, described brick structure body of wall III 32 is divided into conical masonry 321 and chute supports 322 two parts, chute supports 322 and is made up of the support body of wall of the radial distribution of a plurality of one-tenth, each supports body of wall has the multiple layer refractory brick vertically to build by laying bricks or stones to form, and every layer of refractory brick is to be built by laying bricks or stones along the diametric(al) level by a plurality of monoblock refractory brick to form;
Cooling zone 4 is made up of steel construction shell IV 41 and brick structure body of wall IV 42, between shell and body of wall, also be filled with ceramic fiber blanket, 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;
High temperature sintering ore deposit among the present invention about 750 ℃ is distributed into the cool furnace cooling via distribution device continuously equably by the charging aperture in the district that prestores.The high temperature sintering ore deposit is carried out countercurrent flow in the cooling zone of cool furnace with the Cryogenic air that blasts from the stove bottom, and sintering deposit is cooled to below 180 ℃, and discharge through discharge device in the cold ore deposit of low temperature.Cryogenic air is heated to about 600 ℃ through countercurrent flow, enters the heat recovery system through air outlet.Whole process hot-air and heat sinter by effective seal in cool furnace.
Claims (9)
1. 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), it is characterized in that: the described outer periphery that prestores district (1) is equipped with annular air channel district (2), and the described below, district (1) that prestores is disposed with chute district (3), cooling zone (4) and air compartment (5) from top to bottom.
2. a kind of sintering deposit cool furnace as claimed in claim 1, it is characterized in that: described annular air channel district (2) comprises steel construction shell I (21), brick structure body of wall I (22) and air regulating board (23), between steel construction shell I (21) and brick structure body of wall I (22), be filled with ceramic fiber blanket, described brick structure body of wall I (22) comprises outer shroud body of wall (221), interior ringwall body (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 interior ringwall body (222) are built by laying bricks or stones at the top and are integral, forming the cross section is the toroidal cavity of n type, and toroidal cavity is divided into two independently by rectangle partition wall (223) and triangle partition wall (224), the part of symmetry.
3. a kind of sintering deposit cool furnace as claimed in claim 2, it is characterized in that: be provided with many radial support posts (225) that are radial arrangement between the bottom in described annular air channel district (2) and outer shroud body of wall (221) and the interior ringwall body (222), radial support post (225) is made up of stainless steel insert and the refractory brick of band cavity, and refractory brick is built by laying bricks or stones at the stainless steel insert skin.
4. a kind of sintering deposit cool furnace as claimed in claim 2, it is characterized in that: be provided with air regulating board (23) between described two adjacent radial support posts (225), air regulating board (23) is the stainless steel weldment, and air regulating board (23) outer surface is laid with castable refractory.
5. a kind of sintering deposit cool furnace as claimed in claim 1, it is characterized in that: the described district (1) that prestores comprises steel construction shell II (11) and brick structure body of wall II (12), between steel construction shell II (11) and brick structure body of wall II (12), be filled with ceramic fiber blanket, the described top, district (1) that prestores is that taper, bottom are cylindrical, described taper is up-small and down-big taper shape, and conical top is provided with the sintering deposit feeding mouth.
6. a kind of sintering deposit cool furnace as claimed in claim 5, it is characterized in that: the steel construction shell II (11) of described district (1) cylindrical section that prestores and the steel construction shell I (21) of annular air channel district (2) interior ringwall bodies (222) form a ring seal space, the delivery port of this top of space and water-cooling system is connected, this bottom, space 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) is connected by the steel construction shell I (21) of annular air channel district (2) and the water inlet of the water-cooling system of body of heater outside.
7. 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, formed by steel construction shell III (31) and brick structure body of wall III (32), between steel construction shell III (31) and brick structure body of wall III (32), be filled with ceramic fiber blanket, described brick structure body of wall III (32) is divided into conical masonry (321) and chute supports (322) two parts, chute supports (322) and is made up of a plurality of support bodies of wall that radially distribute, each supports body of wall has the multiple layer refractory brick vertically to build by laying bricks or stones to form, and every layer of refractory brick is to be built by laying bricks or stones along the diametric(al) level by a plurality of monoblock refractory brick to form.
8. 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 construction shell IV (41) and brick structure body of wall IV (42), between shell and body of wall, also be filled with ceramic fiber blanket, 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.
9. a kind of sintering deposit cool furnace as claimed in claim 1, it is characterized in that: described air compartment (5) comprises ipper air chamber (51) and lower air chamber (52).
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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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310128026.XA CN103234361B (en) | 2013-04-15 | 2013-04-15 | Sintered ore cooling furnace |
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| CN103234361A true CN103234361A (en) | 2013-08-07 |
| CN103234361B CN103234361B (en) | 2015-07-15 |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103424001A (en) * | 2013-08-08 | 2013-12-04 | 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 |
| 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 |
| 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 |
| CN105605930A (en) * | 2016-03-15 | 2016-05-25 | 宝钢工程技术集团有限公司 | Air supply device and method for vertical type cooling furnace of sintered ore |
| CN106766946A (en) * | 2016-08-30 | 2017-05-31 | 彭武星 | The dry coke quenching or sintering deposit cooling stove of even distributing wind uniform discharge lock wind |
| WO2018121733A1 (en) | 2016-12-29 | 2018-07-05 | Primetals Technologies Austria GmbH | Cooling of bulk material |
| CN108844374A (en) * | 2018-04-17 | 2018-11-20 | 安徽华铂再生资源科技有限公司 | Lead skim recycling and residual heat using device in a kind of lead smelting process |
| CN109652101A (en) * | 2018-04-28 | 2019-04-19 | 郑州釜鼎热能技术有限公司 | A kind of coke dry quenching furnace of furnace wall segmentation support airless chute structure |
| 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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| EP3418661A1 (en) | 2017-06-23 | 2018-12-26 | Primetals Technologies Austria GmbH | Input device for bulk material |
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| Publication number | Priority date | Publication date | Assignee | Title |
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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 |
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| 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 |
| 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 |
| 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 |
| CN105605930A (en) * | 2016-03-15 | 2016-05-25 | 宝钢工程技术集团有限公司 | Air supply device and method for vertical type cooling furnace of sintered ore |
| CN106766946A (en) * | 2016-08-30 | 2017-05-31 | 彭武星 | The dry coke quenching or sintering deposit cooling stove of even distributing wind uniform discharge lock wind |
| WO2018121733A1 (en) | 2016-12-29 | 2018-07-05 | Primetals Technologies Austria GmbH | Cooling of bulk material |
| CN108844374A (en) * | 2018-04-17 | 2018-11-20 | 安徽华铂再生资源科技有限公司 | Lead skim recycling and residual heat using device in a kind of lead smelting process |
| CN109652101A (en) * | 2018-04-28 | 2019-04-19 | 郑州釜鼎热能技术有限公司 | A kind of coke dry quenching furnace of furnace wall segmentation support airless chute structure |
| 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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