CN103512372A - 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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- CN103512372A CN103512372A CN201310494132.XA CN201310494132A CN103512372A CN 103512372 A CN103512372 A CN 103512372A CN 201310494132 A CN201310494132 A CN 201310494132A CN 103512372 A CN103512372 A CN 103512372A
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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 carrys out the heat sinter on cooling chassis by the bellows air blast of chassis bottom, and the higher waste gas of temperature of cooling rear generation produces steam by waste heat boiler, and afterheat steam is used for generating electricity.The efficiency of the serious restriction of the sealing quality 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: 1, improve the sealing effectiveness of both sides sealing device below circular cooler trolley, make wind that blower fan blasts chassis bottom bellows not to outward leakage, make to improve by the air quantity of the chassis bed of material.2, the sealing effectiveness that improves 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 produces steam-electric power by boiler 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 petticoat pipe sealing bad flue-gas temperature that causes in cogeneration Chu top declines, and the quantity of steam of generation reduces, and heat energy can not be made full use of.At ring cold machine smoke hood place, seal in good situation, the flue-gas temperature in petticoat pipe can reach 480 ℃ of left and right, and the flue-gas temperature in most of ring cold machine smoke hoods can only reach 430 ℃ of left and right.Central cooler cogeneration petticoat pipe place sealing has become the key issue of central cooler cogeneration, if in the good situation of air-proof condition, waste gas residual heat temperature can be improved to 50 ℃ of left and right, the waste heat that central cooler is produced is effectively made full use of.
Summary of the invention
The object of this invention is to provide a kind of good sealing effect, simple in structure, reliable central cooler cogeneration flue gas negative pressure self-compensation sealing device.
The object of the invention is to realize 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 circular cooler trolley is connected therewith, be located at the petticoat pipe of described circular cooler trolley top, be located at one group of self-compensation sealed assembly between breast board on described petticoat pipe and described chassis, described self-compensation sealed assembly comprises the upper connecting base being fixedly connected with described petticoat pipe, the upper limit plate that upper connecting base is fixedly connected with therewith, with the sealing plate that on described chassis, breast board is slidably connected, the lower limiting board that is located at this sealing plate top and is fixedly connected with it, described lower limiting board is insertion slot type limiting plate, between two slot board, by rolling axle, be connected, described upper limit plate is inserted between two described slot boards, and the spacing cambered surface of compensation of described upper limit plate bottom is rolled and is contacted with the running roller on described rolling axle, it is characterized in that being provided with negative pressure lapping plate in the one side outside fan housing of described sealing plate, described negative pressure lapping plate is managed by the overlap joint being fixedly connected with described upper connecting base, upper end and described overlap joint pipe are movably hinged, and the lapping plate that lower end and described sealing plate overlap mutually, the counter weight device that is located at this lapping plate bottom forms.
Described counter weight device is by two engaging lugs that are located at described lapping plate two ends, and the weight linear meter being connected with described two engaging lugs forms.
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 the problem that prior art exists, and is easy to transform on existing central cooler.Because the present invention is provided with negative pressure self-compensation sealed assembly between breast board and petticoat pipe on circular cooler trolley, effectively improved the cooling velocity of the heat sinter on circular cooler trolley, the temperature that improves central cooler high temperature section, provides more steam to generating set, improves generating capacity.When sideboard is different from gap length between petticoat pipe on chassis, by sealing plate deadweight and upper and lower limiting plate, can realize the auto-compensation of sideboard sealing on sealing plate and chassis.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, because negative pressure lapping plate and sealing plate side overlap joint ，Qie bottom is provided with counter weight device, under the effect of negative pressure, makes sealing tight reliable in petticoat pipe.Sealing plate is subject to after spacing moving up and down, and negative pressure lapping plate there will not be swing, there will not be dislocation like this below cogeneration petticoat pipe between adjacent negative pressure lapping plate, improves the reliability and stability of sealing;
(3) the present invention, because all of basis is all steel part, compares with rubber parts, spring part, the wire brush part of prior art, has resistance to deformation and high temperature resistance inefficacy ability under good high temperature;
(4) the present invention has reduced plant maintenance amount, long service life, can make sealing effectiveness long-term stability 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 that the C of Fig. 2 of the present invention is to view.
The specific embodiment
Below in conjunction with accompanying drawing, further illustrate the specific embodiment of the present invention.
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 circular cooler trolley is connected therewith, be located at the petticoat pipe 1 of described circular cooler trolley top, be located at one group of self-compensation sealed assembly between breast board 10 on described petticoat pipe 1 and described chassis, described self-compensation sealed assembly comprises the upper connecting base 2 being fixedly connected with described petticoat pipe 1, the upper limit plate 3 that upper connecting base 2 is fixedly connected with therewith, with the sealing plate 9 that on described chassis, breast board 10 is slidably connected, the lower limiting board 6 that is located at these sealing plate 9 tops and is fixedly connected with it, described lower limiting board 6 is insertion slot type limiting plate, between two slot board, by rolling axle 7, be connected, described upper limit plate 3 is inserted between two described slot boards, and the spacing cambered surface of compensation of described upper limit plate 3 bottoms contacts with running roller 8 rollings on described rolling axle 7, it is characterized in that being provided with negative pressure lapping plate in the one side outside fan housing of described sealing plate 9, described negative pressure lapping plate is by the overlap joint pipe 4 being 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 and described sealing plate 9 overlap mutually, the counter weight device that is located at these lapping plate 5 bottoms forms.Because negative pressure lapping plate and sealing plate 9 overlap joint ，Qie bottoms, sides are provided with counter weight device, under the effect of petticoat pipe 1 interior negative pressure, make sealing tight reliable.Sealing plate 9 is subject to after spacing moving up and down, and negative pressure lapping plate there will not be swing, there will not be dislocation like this below cogeneration petticoat pipe between adjacent negative pressure lapping plate, improves the reliability and stability of sealing.
Described counter weight device is by two engaging lug 5-1 that are located at described lapping plate 5 two ends, and the weight linear meter 5-2 being connected with described two engaging lug 5-1 forms.
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 rubber parts, spring part, the wire brush part of prior art, there is resistance to deformation and high temperature resistance inefficacy ability under good high temperature.
The present invention efficiently solves the problem that prior art exists, and is easy to transform on existing central cooler.Because the present invention is provided with negative pressure self-compensation sealed assembly between breast board 10 and petticoat pipe 1 on circular cooler trolley, effectively improved the cooling velocity of the heat sinter on circular cooler trolley, the temperature that improves central cooler high temperature section, provides more steam to generating set, improves generating capacity.When the gap length of sideboard 10 and 1 of petticoat pipe is different on chassis, by deadweight, upper limit plate 3 and the lower limiting board 6 of sealing plate 9, can realize the auto-compensation of sideboard 10 sealings on sealing plate 9 and chassis.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 has reduced plant maintenance amount, long service life, can make sealing effectiveness long-term stability 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 circular cooler trolley is connected therewith, be located at the petticoat pipe of described circular cooler trolley top, be located at one group of self-compensation sealed assembly between breast board on described petticoat pipe and described chassis, described self-compensation sealed assembly comprises the upper connecting base being fixedly connected with described petticoat pipe, the upper limit plate that upper connecting base is fixedly connected with therewith, with the sealing plate that on described chassis, breast board is slidably connected, the lower limiting board that is located at this sealing plate top and is fixedly connected with it, described lower limiting board is insertion slot type limiting plate, between two slot board, by rolling axle, be connected, described upper limit plate is inserted between two described slot boards, and the spacing cambered surface of compensation of described upper limit plate bottom is rolled and is contacted with the running roller on described rolling axle, it is characterized in that being provided with negative pressure lapping plate in the one side outside fan housing of described sealing plate, described negative pressure lapping plate is managed by the overlap joint being fixedly connected with described upper connecting base, upper end and described overlap joint pipe are movably hinged, and the lapping plate that lower end and described sealing plate overlap mutually, the counter weight device that is located at this lapping plate bottom forms.
2. central cooler cogeneration flue gas negative pressure self-compensation sealing device according to claim 1, is characterized in that described counter weight device is by two engaging lugs that are located at described lapping plate two ends, and the weight linear meter being connected with described two engaging lugs forms.
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 true CN103512372A (en) | 2014-01-15 |
| CN103512372B 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) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107228569A (en) * | 2017-07-25 | 2017-10-03 | 天津健威泽节能环保科技股份有限公司 | A kind of sealing system of central cooler or belt-cooling machine eutral margin drift dynamic control |
| CN107270715A (en) * | 2017-06-13 | 2017-10-20 | 宝鸡市晋旺达机械设备有限公司 | Sealing device and sintering machine |
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 |
| CN103047869A (en) * | 2013-02-01 | 2013-04-17 | 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 |
-
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 |
| CN103047869A (en) * | 2013-02-01 | 2013-04-17 | 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 |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107270715A (en) * | 2017-06-13 | 2017-10-20 | 宝鸡市晋旺达机械设备有限公司 | Sealing device and sintering machine |
| 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 |
| CN107228569A (en) * | 2017-07-25 | 2017-10-03 | 天津健威泽节能环保科技股份有限公司 | A kind of sealing system of central cooler or belt-cooling machine eutral margin drift dynamic control |
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| Publication number | Publication date |
|---|---|
| CN103512372B (en) | 2015-01-21 |
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Granted publication date: 20150121 Termination date: 20191021 |
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