CN103512372B - Waste heat power generation flue gas negative pressure self-compensating sealing device of ring cooler - Google Patents
Waste heat power generation flue gas negative pressure self-compensating sealing device of ring cooler Download PDFInfo
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- CN103512372B CN103512372B CN201310494132.XA CN201310494132A CN103512372B CN 103512372 B CN103512372 B CN 103512372B CN 201310494132 A CN201310494132 A CN 201310494132A CN 103512372 B CN103512372 B CN 103512372B
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Abstract
The invention belongs to the technical field of sintering ring cooling equipment in the metallurgical industry, and particularly relates to a waste heat power generation flue gas negative pressure self-compensating sealing device of a ring cooler. The sealing device comprises a ring cooler trolley, a trolley upper breast board, a smoke hood and a self-compensating sealing assembly arranged between the smoke hood and the trolley upper breast board, wherein the self-compensating sealing assembly comprises an upper connecting base, an upper limiting plate, a sealing plate and a lower limiting plate. The sealing device is characterized in that a negative pressure lap joint plate is arranged on the side face of the sealing plate and formed by a lap joint pipe, a lap joint plate and a counter weight device, wherein the lap joint pipe is fixedly connected with the upper connecting base, the upper end of the lap joint plate is movably hinged to the lap joint pipe, the lower end of the lap joint plate is in lap joint with the sealing plate, and the counter weight device is arranged on the lower portion of the lap joint plate. The sealing device effectively solves the problems existing in the prior art, effectively increases the cooling speed of hot sintering ores on the trolley of the ring cooler, increases the temperature of a high-temperature section of the ring cooler, provides more steam for a generator set, and improves power generation capacity.
Description
Technical field
The invention belongs to metallurgy industry sintered ring cool equipment technical field, especially relate to a kind of central cooler cogeneration flue gas negative pressure self-compensation sealing device.
Background technology
In iron and steel metallurgical industry central cooler production process, central cooler cools the heat sinter on chassis by the bellows air blast of chassis bottom, and the higher waste gas of temperature produced after cooling produces steam by waste heat boiler, is used for by afterheat steam generating electricity.The efficiency of the sealing quality serious restriction central cooler waste heat recovery of central cooler.The bad generated energy that will cause of sealing effectiveness declines, and causes the waste of heat resource.Improve the effective ways of central cooler EGT mainly: the sealing effectiveness 1, improving both sides sealing device below circular cooler trolley, is made blower fan blast the wind of chassis bottom bellows not to outward leakage, make to be improved by the air quantity of the chassis bed of material.2, improve the sealing effectiveness of both sides above circular cooler trolley, due to top, petticoat pipe place is fan induced draught, seals the bad wind outside that will cause and reveals in petticoat pipe, and the temperature of cogeneration flue gas is declined.
Central cooler cogeneration is that high-temperature residual heat is generated electricity by boiler develops steam vapor by the waste heat recovery of central cooler entrance sintering deposit high temperature section, and low warm air blasts the bellows of chassis bottom again.The top bad flue-gas temperature that causes of petticoat pipe sealing of cogeneration place declines, and the quantity of steam of generation reduces, and heat energy can not be made full use of.Under ring cold machine smoke hood place seals good situation, the flue-gas temperature in petticoat pipe can reach about 480 DEG C, but the flue-gas temperature in most of ring cold machine smoke hood can only reach about 430 DEG C.The sealing of central cooler cogeneration petticoat pipe place has become the key issue of central cooler cogeneration, if when air-proof condition is good, waste gas residual heat temperature can be improved about 50 DEG C, the waste heat that central cooler is produced effectively is made full use of.
Summary of the invention
The object of this invention is to provide the central cooler cogeneration flue gas negative pressure self-compensation sealing device that a kind of good sealing effect, structure are simple, reliable.
The object of the invention is to be realized by following technical proposals:
Central cooler cogeneration flue gas negative pressure self-compensation sealing device of the present invention, comprise circular cooler trolley, breast board on the chassis that is connected of circular cooler trolley therewith, be located at the petticoat pipe above described circular cooler trolley, be located at one group of self-compensation sealed assembly on described petticoat pipe and described chassis between breast board, described self-compensation sealed assembly comprises the upper connecting base be fixedly connected with described petticoat pipe, the upper limit plate that is fixedly connected with of upper connecting base therewith, the sealing plate be slidably connected with breast board on described chassis, be located at the lower limiting board be also fixedly connected with it above this sealing plate, described lower limiting board is insertion slot type limiting plate, be connected by rolling axle between two slot board, described upper limit plate is inserted between two described slot boards, and the running roller Structure deformation on the spacing cambered surface of compensation of described upper limit plate bottom and described rolling axle, it is characterized in that being provided with negative pressure lapping plate in the one side outside petticoat pipe of described sealing plate, described negative pressure lapping plate is by the overlap joint pipe be fixedly connected with described upper connecting base, upper end and described overlap joint pipe are movably hinged, and the lapping plate that lower end overlaps mutually with described sealing plate, the counter weight device being located at this lapping plate bottom formed.
Described counter weight device is by two engaging lugs being located at described lapping plate two ends, and the weight linear meter be connected with described two engaging lugs formed.
Described upper connecting base, upper limit plate, lower limiting board, sealing plate, negative pressure lapping plate, rolling axle and running roller are steel part.
Advantage of the present invention:
(1) the present invention efficiently solves prior art Problems existing, is easy to transform on existing central cooler.Because the present invention is provided with negative pressure self-compensation sealed assembly on circular cooler trolley between breast board and petticoat pipe, effectively improve the cooling velocity of the heat sinter on circular cooler trolley, improve the temperature of central cooler high temperature section, provide more steam to generating set, improve generating capacity.When the gap length on chassis between sideboard from petticoat pipe is different, the auto-compensation of sideboard sealing on sealing plate and chassis can be realized by sealing plate deadweight and upper and lower limiting plate.Make the contact force of sideboard on sealing plate and chassis less, can wear and tear again little by good seal;
(2) the present invention overlaps due to negative pressure lapping plate and sealing plate side, and bottom is provided with counter weight device, in petticoat pipe negative pressure effect under, make sealing tightly reliable.Sealing plate be subject to spacing after can only move up and down, negative pressure lapping plate there will not be swing, there will not be dislocation between negative pressure lapping plate adjacent below such cogeneration petticoat pipe, improve sealing reliability and stability;
(3) the present invention due to these all be all steel part, compare with the rubber parts of prior art, spring part, wire brush part, there is resistance to deformation and high temperature resistance inefficacy ability under good high temperature;
(4) The present invention reduces plant maintenance amount, long service life, sealing effectiveness long-term stability can be made constant.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Fig. 2 is the A-A view of Fig. 1 of the present invention.
Fig. 3 is the C direction view of Fig. 2 of the present invention.
Detailed description of the invention
The specific embodiment of the present invention is further illustrated below in conjunction with accompanying drawing.
As Fig. 1, shown in 2 and 3, central cooler cogeneration flue gas negative pressure self-compensation sealing device of the present invention, comprise circular cooler trolley, breast board 10 on the chassis that is connected of circular cooler trolley therewith, be located at the petticoat pipe 1 above described circular cooler trolley, be located at one group of self-compensation sealed assembly on described petticoat pipe 1 and described chassis between breast board 10, described self-compensation sealed assembly comprises the upper connecting base 2 be fixedly connected with described petticoat pipe 1, the upper limit plate 3 that is fixedly connected with of upper connecting base 2 therewith, the sealing plate 9 be slidably connected with breast board 10 on described chassis, be located at the lower limiting board 6 be also fixedly connected with it above this sealing plate 9, described lower limiting board 6 is insertion slot type limiting plate, be connected by rolling axle 7 between two slot board, described upper limit plate 3 is inserted between two described slot boards, and running roller 8 Structure deformation on the spacing cambered surface of compensation of described upper limit plate 3 bottom and described rolling axle 7, it is characterized in that being provided with negative pressure lapping plate in the one side outside petticoat pipe of described sealing plate 9, described negative pressure lapping plate is by the overlap joint pipe 4 be fixedly connected with described upper connecting base 2, upper end and described overlap joint pipe 4 are movably hinged, and the lapping plate 5 that lower end overlaps with described sealing plate 9 phase, the counter weight device being located at this lapping plate 5 bottom formed.Because negative pressure lapping plate and sealing plate 9 side overlap, and bottom is provided with counter weight device, in petticoat pipe 1 negative pressure effect under, make sealing tightly reliable.Sealing plate 9 be subject to spacing after can only move up and down, negative pressure lapping plate there will not be swing, there will not be dislocation between negative pressure lapping plate adjacent below such cogeneration petticoat pipe, improve sealing reliability and stability.
Described counter weight device is by two the engaging lug 5-1 being located at described lapping plate 5 two ends, and the weight linear meter 5-2 be connected with described two engaging lug 5-1 formed.
Described upper connecting base 2, upper limit plate 3, lower limiting board 6, sealing plate 9, negative pressure lapping plate, rolling axle 7 and running roller 8 are steel part, compare with the rubber parts of prior art, spring part, wire brush part, there is resistance to deformation and high temperature resistance inefficacy ability under good high temperature.
The present invention efficiently solves prior art Problems existing, is easy to transform on existing central cooler.Because the present invention is provided with negative pressure self-compensation sealed assembly on circular cooler trolley between breast board 10 and petticoat pipe 1, effectively improve the cooling velocity of the heat sinter on circular cooler trolley, improve the temperature of central cooler high temperature section, provide more steam to generating set, improve generating capacity.When gap length when between sideboard on chassis 10 from petticoat pipe 1 is different, can realize by the deadweight of sealing plate 9, upper limit plate 3 and lower limiting board 6 auto-compensation that on sealing plate 9 and chassis, sideboard 10 seals.Make the contact force of sideboard 10 on sealing plate 9 and chassis less, can wear and tear again little by good seal.The present invention reduces plant maintenance amount, long service life, sealing effectiveness long-term stability can be made constant.
Claims (3)
1. a central cooler cogeneration flue gas negative pressure self-compensation sealing device, comprise circular cooler trolley, breast board on the chassis that is connected of circular cooler trolley therewith, be located at the petticoat pipe above described circular cooler trolley, be located at one group of self-compensation sealed assembly on described petticoat pipe and described chassis between breast board, described self-compensation sealed assembly comprises the upper connecting base be fixedly connected with described petticoat pipe, the upper limit plate that is fixedly connected with of upper connecting base therewith, the sealing plate be slidably connected with breast board on described chassis, be located at the lower limiting board be also fixedly connected with it above this sealing plate, described lower limiting board is insertion slot type limiting plate, be connected by rolling axle between two slot board, described upper limit plate is inserted between two described slot boards, and the running roller Structure deformation on the spacing cambered surface of compensation of described upper limit plate bottom and described rolling axle, it is characterized in that being provided with negative pressure lapping plate in the one side outside petticoat pipe of described sealing plate, described negative pressure lapping plate is by the overlap joint pipe be fixedly connected with described upper connecting base, upper end and described overlap joint pipe are movably hinged, and the lapping plate that lower end overlaps mutually with described sealing plate, the counter weight device being located at this lapping plate bottom formed.
2. central cooler cogeneration flue gas negative pressure self-compensation sealing device according to claim 1, it is characterized in that described counter weight device is by two engaging lugs being located at described lapping plate two ends, the weight linear meter be connected with described two engaging lugs formed.
3. central cooler cogeneration flue gas negative pressure self-compensation sealing device according to claim 1, is characterized in that described upper connecting base, upper limit plate, lower limiting board, sealing plate, negative pressure lapping plate, rolling axle and running roller are steel part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310494132.XA CN103512372B (en) | 2013-10-21 | 2013-10-21 | Waste heat power generation flue gas negative pressure self-compensating sealing device of ring cooler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310494132.XA CN103512372B (en) | 2013-10-21 | 2013-10-21 | Waste heat power generation flue gas negative pressure self-compensating sealing device of ring cooler |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103512372A CN103512372A (en) | 2014-01-15 |
| CN103512372B true CN103512372B (en) | 2015-01-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310494132.XA Expired - Fee Related CN103512372B (en) | 2013-10-21 | 2013-10-21 | Waste heat power generation flue gas negative pressure self-compensating sealing device of ring cooler |
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| CN (1) | CN103512372B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107270715B (en) * | 2017-06-13 | 2023-12-01 | 宝鸡市晋旺达机械设备有限公司 | Sealing device and sintering machine |
| CN107228569B (en) * | 2017-07-25 | 2023-04-28 | 天津健威泽节能环保科技股份有限公司 | Sealing system for dynamic control of zero pressure surface drift of circular cooler or belt cooler |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS637368A (en) * | 1986-06-27 | 1988-01-13 | Hitachi Ltd | Side sealing device for roll type sealing system |
| CN101059312A (en) * | 2007-04-05 | 2007-10-24 | 中冶长天国际工程有限责任公司 | Ring cold machine residual heat recovery and sealing device |
| CN101655316A (en) * | 2009-04-13 | 2010-02-24 | 浙江西子联合工程有限公司 | Seal structure between wind chamber and the lower part of sintering ring cold machine trolley of steel and iron plant |
| CN201443589U (en) * | 2009-07-28 | 2010-04-28 | 济钢集团国际工程技术有限公司 | Adjustable wear-resisting elastic sealing device |
| CN201876123U (en) * | 2010-11-25 | 2011-06-22 | 中冶赛迪工程技术股份有限公司 | Device for reducing air leakage rate between sintering annular cooling machine table and smoke hood |
| CN202371173U (en) * | 2011-11-22 | 2012-08-08 | 中冶长天国际工程有限责任公司 | Fume hood dynamic sealing device and annular cooler with same |
| CN203550619U (en) * | 2013-10-21 | 2014-04-16 | 吴�琳 | Afterheat power generation flue gas negative pressure self-compensation sealing device for ring cooling machine |
| CN103047869B (en) * | 2013-02-01 | 2014-10-29 | 吴�琳 | Three-dimensional limiting type elastic sealing device of lower breast board of circular cooler trolley |
-
2013
- 2013-10-21 CN CN201310494132.XA patent/CN103512372B/en not_active Expired - Fee Related
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS637368A (en) * | 1986-06-27 | 1988-01-13 | Hitachi Ltd | Side sealing device for roll type sealing system |
| CN101059312A (en) * | 2007-04-05 | 2007-10-24 | 中冶长天国际工程有限责任公司 | Ring cold machine residual heat recovery and sealing device |
| CN101655316A (en) * | 2009-04-13 | 2010-02-24 | 浙江西子联合工程有限公司 | Seal structure between wind chamber and the lower part of sintering ring cold machine trolley of steel and iron plant |
| CN201443589U (en) * | 2009-07-28 | 2010-04-28 | 济钢集团国际工程技术有限公司 | Adjustable wear-resisting elastic sealing device |
| CN201876123U (en) * | 2010-11-25 | 2011-06-22 | 中冶赛迪工程技术股份有限公司 | Device for reducing air leakage rate between sintering annular cooling machine table and smoke hood |
| CN202371173U (en) * | 2011-11-22 | 2012-08-08 | 中冶长天国际工程有限责任公司 | Fume hood dynamic sealing device and annular cooler with same |
| CN103047869B (en) * | 2013-02-01 | 2014-10-29 | 吴�琳 | Three-dimensional limiting type elastic sealing device of lower breast board of circular cooler trolley |
| CN203550619U (en) * | 2013-10-21 | 2014-04-16 | 吴�琳 | Afterheat power generation flue gas negative pressure self-compensation sealing device for ring cooling machine |
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| CN103512372A (en) | 2014-01-15 |
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