CN101655316A - Seal structure between wind chamber and the lower part of sintering ring cold machine trolley of steel and iron plant - Google Patents
Seal structure between wind chamber and the lower part of sintering ring cold machine trolley of steel and iron plant Download PDFInfo
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- CN101655316A CN101655316A CN200910097383A CN200910097383A CN101655316A CN 101655316 A CN101655316 A CN 101655316A CN 200910097383 A CN200910097383 A CN 200910097383A CN 200910097383 A CN200910097383 A CN 200910097383A CN 101655316 A CN101655316 A CN 101655316A
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Abstract
The invention discloses a seal structure between a wind chamber and the lower part of a sintering ring cold machine trolley of a steel and iron plant, which mainly comprises an outer seal piece, a seal contact plate and inner-side seal rubber, wherein the outer seal piece consists of a seal piece strut member, an outer limit plate, an inner limit plate, an elastic rubber cylinder, rubber in the shape of a seal groove, a support plate and an adjustable connection screw rod, the support plate is arranged in the rubber in the shape of a seal groove and is connected with the seal piece strut member through the adjustable connection screw rod in an adjustable way, outer seal is realized through the rubber in the shape of a seal groove and the seal contact plate, and inner seal is realized through the inner-side seal rubber. The invention improves the efficiency of smoke recycle and the quality of smoke utilization, fully recycles smoke, effeciently uses cold residual heat of sintering rings, decreases maintenance cost of the seal piece and shortens service life.
Description
Technical field
The present invention relates to the sintering circular-cooler equipment and technology that a kind of steel plant use, the hermetically-sealed construction between particularly a kind of lower part of sintering ring cold machine trolley of steel and iron plant and bellows.
Background technology
In steel manufacture process, the energy consumption of sintering circuit accounts for 10% of total energy consumption, is only second to the ironmaking operation, occupies second.In the sintering circuit total energy consumption, there is nearly 50% heat energy to enter atmosphere with the sensible heat form of sintering device flue gas and cooling machine waste gas.Because the temperature of sintering circular-cooler waste gas is not high, only 150～450 ℃, the limitation of heat recovery technology is ignored by people for a long time before adding.
The Sealing Technology of sintering circular-cooler is one of key technology of sintering circular-cooler cogeneration, directly has influence on cogeneration result's success or failure, and in the Sealing Technology of sintering circular-cooler: the hermetically-sealed construction between lower part of sintering ring cold machine trolley and bellows is one of emphasis.
Because central cooler is the equipment of a continuous motion, just has relative motion with the bottom bellows, and is the blast of 2-4KPa in the bellows, therefore, just must seal leaking out of causing to prevent inside and outside differential pressure between top chassis and the following bellows.But central cooler is not a workpiece, central cooler existence in service is to the situation of each different plaies, thereby make sealing just become a bottleneck, its crux: have very big leaking out between chassis bottom and the air compartment, the wind of row 30～50% exposes from the bottom, a large amount of hot blasts spills and makes there is not realization flue gas complete alternation utilization truly, and in order to replenish the air quantity that spills, must replenish a large amount of cold wind, simultaneously the gas recirculating fan type selecting is amplified, so just caused the quality that has reduced circulating flue gas, consume the electric energy of motor in vain, influence the temperature of utilizing of waste heat flue gas, thereby reduced the quality of boiler generation steam, influenced the whole generating system.
Summary of the invention
The objective of the invention is to spill problem for a large amount of hot blasts that solve between above-mentioned chassis bottom and the bellows, thereby improve the flue gas recirculation utilization rate and improve the flue gas utilization quality, realize the complete alternation utilization of flue gas, realize efficiently utilizing sintered ring cold exhaust heat, reduce a kind of lower part of sintering ring cold machine trolley of steel and iron plant of seal maintenance cost and the hermetically-sealed construction between bellows.
In order to achieve the above object, a kind of lower part of sintering ring cold machine trolley of steel and iron plant that the present invention is designed and the hermetically-sealed construction between bellows, mainly comprise outside seal may, sealing contact plate and inner seal rubber, outside seal may is by the seal support member, outer limiting plate, interior limiting plate, the elastic caoutchouc cylinder, sealing grooved rubber, supporting plate, can regulate connecting screw rod forms, supporting plate is located in the sealing grooved rubber, and be connected with the seal support member is adjustable by regulating connecting screw rod, between sealing grooved rubber and seal support member, be provided with the elastic caoutchouc cylinder, interior limiting plate and outer limiting plate be located at respectively seal grooved rubber in, the outside, outside seal may and inner seal rubber are fixed on the chassis lower end of sintering circular-cooler, and with the chassis interlock, realize external seal by sealing grooved rubber and sealing contact plate.
For realizing efficiently utilizing sintered ring cold exhaust heat, improved the flue gas utilization quality, reduced the hermetically-sealed construction form of the maintenance cost of seal, outside seal may and inner seal rubber all are to be bearing on the chassis, when trolley movement, remain static except that the sealing contact plate is fixed on the bellows, outside seal may and inner seal rubber all move with chassis.
The present invention has improved the flue gas utilization quality, has reduced the maintenance cost of seal.The present invention has adopted and can regulate connecting screw rod, by regulating part, makes sealing grooved rubber closely to contact with the sealing contact plate, prolongs the service time of sealing grooved rubber.
The present invention has adopted the sealing between inner seal rubber and the air compartment, realized inboard sealing, inside and outside limiting plate, elastic caoutchouc cylinder have been adopted to comprise the seal support member, sealing grooved rubber, supporting plate can be regulated connecting screw rod, and sealing contact plate parts, realize the sealing in the outside, thereby realized the inside and outside dual sealing.
The present invention absorbs the play up and down of chassis by the elasticity of elastic caoutchouc cylinder, realizes the sealing of anti-play up and down.The sealing grooved rubber that moves with chassis is to slide on the sealing contact plate of a horizontal positioned, by lengthening sealing contact plate, makes sealing grooved rubber in radial direction, carries out contact with the sealing contact plate and slides, and realizes radially contact slipper seal.Described by lengthening sealing contact plate, can be that the grooved rubber that slides than top of the width of sealing contact plate is wide 60 millimeters, the grooved rubber slab places the center of sealing contact plate, just allow the grooved rubber slab that 30 millimeters inside and outside play can be arranged so diametrically, and the actual play in chassis when operation is approximately 20 millimeters, has satisfied the play requirement of its radial direction.This hermetically-sealed construction also is provided with the elastic caoutchouc cylinder, and the elastic caoutchouc cylinder has 50 millimeters elastic compression amount.
During installation, the elastic caoutchouc cylinder is compressed into ellipse, decrement is 30 millimeters, and the elastic caoutchouc cylinder just has 20 millimeters of the plaies of making progress like this, the ability that downward play is 30 millimeters.When chassis operation upwards during play, sealing grooved rubber leaves the contact sealing plate, and this is, at the elastic caoutchouc cylinder under flexible effect, make sealing grooved rubber again with contact sealing plate and contacts.When chassis moved downward play, sealing grooved rubber was pressed tightlyer with contacting sealing plate, under this strand pressure, the elastic caoutchouc cylinder is compressed, thereby alleviated sealing grooved rubber and the pressure that contacts between the sealing plate, reduced frictional force, thereby delayed the damage of sealing grooved rubber.
The present invention is a hermetically-sealed construction designed between chassis bottom and the bellows, not only can reach the effect of sealing fully, and screw rod also has been arranged to the form that can regulate.When bottom seal groove type rubber is worn down to a certain degree, screw rod can be reduced, make that like this service time of whole outside seal may is longer, prolonged the life-span of seal, reduced to change the intensity of outside seal may, reach the purpose that reduces maintenance cost.Regulate length and can determine its regulated quantity according to the on-the-spot actual size of central cooler.
This hermetically-sealed construction form has realized effective seal by absorbing the play of all directions; Seal more effectively, mend cold blast rate so just still less; Cold wind is mended fewly, just makes the type selecting of gas recirculating fan diminish, the electric energy of the motor of consumption just still less, this itself is exactly a kind of energy-conservation form.When cold wind was mended still less, Xun Huan flue-gas temperature will raise so, so just can improve the temperature raising of flue gas afterwards of cooling mineral aggregate, thereby had improved the quality of fume afterheat, made whole afterheat generating system tend towards stability more.Can find out that thus effective seal makes whole flue gas waste heat recovery system enter an optimum circulation.The sealing form is by increasing the adjustment type screw rod, just can be after seal be subjected to certain damage and needn't change at once, and leak out in a large number and cause foregoing adverse consequences because have when changing, even have to stop the replacing that central cooler carries out seal.And the life-span of seal prolongs, and has not only reduced the expense of frequent maintenance, also can so that whole system can more stably move.
And the lower seal version of the present invention's design breaks through conventional Seal Design form, by increasing the form of elastic caoutchouc cylinder, reach the play that absorbs the operating all directions of central cooler, realize sealing fully, thereby improve the quality that fume afterheat utilizes, reach making full use of of waste heat.
Hermetically-sealed construction form provided by the invention under the prerequisite that does not influence the cold technological process of former sintered ring, can absorb the play of all directions of central cooler generation in service, realizes the hermetically-sealed construction form that seals fully between chassis bottom and the bellows.Thereby greatly reduce station service power consumption rate, guarantee the better quality that fume afterheat utilizes, make stable, the operation efficiently of whole afterheat generating system.
Whole nation iron and steel business enterprise expand present technique is significant, sintering deposit energy consumption only per ton is marked coal with regard to 45kg, the ironmaking of the 2006 cars whole nation is 400,000,000 tons, the about 2,000 ten thousand tons of mark coals of energy consumption, about 34% heat energy is gone into atmosphere with the flue gas form from main pump drainage in the sintering process, and about 62% heat energy is taken away by sintered material, if 40% heat in the sintered material is carried out waste heat recovery, then can save at least 500 ten thousand tons/year of standard coals, reduce discharging CO
21,050 ten thousand tons/year, SO
2About 260,000 tons/year.
Description of drawings
Fig. 1 is the embodiment of the invention 1 structural representation;
Fig. 2 is the local structure for amplifying schematic diagram of Fig. 1.
Wherein: seal support member 1, outer limiting plate 2, interior limiting plate 3, elastic caoutchouc cylinder 4, sealing grooved rubber 5, supporting plate 6, can regulate connecting screw rod 7, sealing contact plate 8, bellows 9, smoke-box 10, ride 11, inner seal rubber 12, chassis lower end 13.
The specific embodiment
In conjunction with the accompanying drawings patent of the present invention is further described by embodiment down.
Embodiment:
As Fig. 1, shown in Figure 2, a kind of lower part of sintering ring cold machine trolley of steel and iron plant that the present invention that present embodiment provides is designed and the hermetically-sealed construction between bellows, mainly comprise outside seal may, sealing contact plate 8 and inner seal rubber 12, it is characterized in that outside seal may is by seal support member 1, outer limiting plate 2, interior limiting plate 3, elastic caoutchouc cylinder 4, sealing grooved rubber 5, supporting plate 6, can regulate connecting screw rod 7 forms, supporting plate 6 is located in the sealing grooved rubber 5, and by regulating connecting screw rod 7 and 1 adjustable connection of seal support member, between sealing grooved rubber 5 and seal support member 1, be provided with elastic caoutchouc cylinder 4, interior limiting plate 3 and outer limiting plate 2 be located at respectively seal grooved rubber 5 in, the outside, outside seal may and inner seal rubber 12 are fixed on the chassis lower end 13 of sintering circular-cooler, and with chassis 11 interlocks, realize external seals by sealing grooved rubber 5 and sealing contact plate 8.
Outside seal may and inner seal rubber 12 all are to be bearing on the chassis 11, when trolley movement, remain static except that sealing contact plate 8 fixes on the bellows 9 together, and outside seal may and inner seal rubber 12 are all with chassis 11 motions.The present invention has improved the flue gas utilization quality, has reduced the maintenance cost of seal.The present invention has adopted and can regulate connecting screw rod 7, by regulating part 7, makes sealing grooved rubber 5 closely to contact with sealing contact plate 8, prolongs the service time of sealing grooved rubber.
Present embodiment has adopted the sealing between inner seal rubber 12 and the air compartment 9, realized inboard sealing, limiting plate 2 and 3, elastic caoutchouc cylinder 4 have been adopted to comprise seal support member 1, sealing grooved rubber 5, supporting plate 6 can be regulated connecting screw rod 7, and sealing contact plate 8 parts, realize the sealing in the outside, thereby realized the inside and outside dual sealing.
Present embodiment absorbs the play up and down of chassis by the elasticity of elastic caoutchouc cylinder 4, realizes the sealing of anti-play up and down.The sealing grooved rubber 5 that moves with chassis is to slide on the sealing contact plate 8 of a horizontal positioned, by lengthening sealing contact plate 8, make sealing grooved rubber 5 in radial direction, carry out contact with sealing contact plate 8 and slide, realize radially contact slipper seal.Described by lengthening sealing contact plate 8, can be that the sealing grooved rubber 5 that slides than top of the width of sealing contact plate 8 is wide 60 millimeters, sealing grooved rubber 5 places the center of sealing contact plate 8, just allow sealing grooved rubber 5 that 30 millimeters inside and outside play can be arranged so diametrically, and the actual play in chassis when operation is approximately 20 millimeters, has satisfied the play requirement of its radial direction.This hermetically-sealed construction also is provided with elastic caoutchouc cylinder 4, and elastic caoutchouc cylinder 4 has 50 millimeters elastic compression amount.
During installation, elastic caoutchouc cylinder 4 is compressed into ellipse, decrement is 30 millimeters, and elastic caoutchouc cylinder 4 just has 20 millimeters of the plaies of making progress like this, the ability that downward play is 30 millimeters.When chassis operation upwards during play, sealing grooved rubber 5 leaves contact sealing plate 8, at this moment, at elastic caoutchouc cylinder 4 under flexible effect, make sealing grooved rubber 5 again with contact sealing plate 8 and contacts.When chassis moves downward play, sealing grooved rubber 5 with contact sealing plate 8 and press tightlyer, under this strand pressure, elastic caoutchouc cylinder 4 is compressed, thereby sealing grooved rubber 5 and the pressure that contacts between the sealing plate 8 have been alleviated, reduce frictional force, thereby delayed the damage of sealing grooved rubber 5.
During use,, realize the function of sealing by sealing grooved rubber 5 and sealing contacting between the contact plate 8; When up and down play appearred in chassis, outside seal may was along with chassis moves together so, and this moment, elastic caoutchouc cylinder 4 can absorb the chassis play 20mm that makes progress, and the shifting amount of play 30mm downwards makes sealing grooved rubber 5 closely contact with sealing between the contact plate 8; When chassis during at the radial direction play, because sealing contact plate 8 all leaves the surplus of 30mm inside and outside radially, therefore, 5 of sealing grooved rubber carry out contact and slide on sealing contact plate 8; After sealing grooved rubber 5 is worn, can regulate connecting screw rod 7 by regulating, make sealing grooved rubber 5 and sealing contact plate 8 continue to keep closely contacting, prolong the service time of sealing grooved rubber 5, prolong the replacing time of whole sealing device.
Claims (3)
1. the hermetically-sealed construction between lower part of sintering ring cold machine trolley of steel and iron plant and bellows, mainly comprise outside seal may, sealing contact plate (8) and inner seal rubber (12), it is characterized in that outside seal may is by seal support member (1), outer limiting plate (2), interior limiting plate (3), elastic caoutchouc cylinder (4), sealing grooved rubber (5), supporting plate (6), can regulate connecting screw rod (7) forms, supporting plate (6) is located in the sealing grooved rubber (5), and by regulating connecting screw rod (7) and adjustable connection of seal support member (1), between sealing grooved rubber (5) and seal support member (1), be provided with elastic caoutchouc cylinder (4), interior limiting plate (3) and outer limiting plate (2) be located at respectively the sealing grooved rubber (5) in, the outside, outside seal may and inner seal rubber (12) are fixed on the chassis lower end (13) of sintering circular-cooler, and with chassis (11) interlock, realize external seal by sealing grooved rubber (5) and sealing contact plate (8).
2. the hermetically-sealed construction between lower part of sintering ring cold machine trolley of steel and iron plant according to claim 1 and bellows is characterized in that the elasticity by elastic caoutchouc cylinder (4), absorbs the play up and down of chassis (11), realizes the sealing of anti-play up and down.
3. the hermetically-sealed construction between lower part of sintering ring cold machine trolley of steel and iron plant according to claim 1 and 2 and bellows, it is characterized in that, it is characterized in that by lengthening sealing contact plate (8), make sealing grooved rubber (5) in radial direction, carry out contact with sealing contact plate (8) and slide, realize radially contact slipper seal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910097383 CN101655316B (en) | 2009-04-13 | 2009-04-13 | Seal structure between wind chamber and the lower part of sintering ring cold machine trolley of steel and iron plant |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910097383 CN101655316B (en) | 2009-04-13 | 2009-04-13 | Seal structure between wind chamber and the lower part of sintering ring cold machine trolley of steel and iron plant |
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| CN101655316A true CN101655316A (en) | 2010-02-24 |
| CN101655316B CN101655316B (en) | 2013-02-13 |
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| CN 200910097383 Active CN101655316B (en) | 2009-04-13 | 2009-04-13 | Seal structure between wind chamber and the lower part of sintering ring cold machine trolley of steel and iron plant |
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Cited By (5)
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| CN103090007A (en) * | 2013-01-25 | 2013-05-08 | 中冶北方（大连）工程技术有限公司 | Sealing device between annular cooler trolley breast board and door-shaped cover |
| CN103512372A (en) * | 2013-10-21 | 2014-01-15 | 吴�琳 | Waste heat power generation flue gas negative pressure self-compensating sealing device of ring cooler |
| CN103629933A (en) * | 2013-11-01 | 2014-03-12 | 西安越达环保科技有限公司 | Side sealing plate and sintering or cooling equipment |
| CN105333151A (en) * | 2015-08-12 | 2016-02-17 | 高彦 | Sealing device used for gap between material transporting cart and sealing cover or air box |
| CN105605923A (en) * | 2016-03-19 | 2016-05-25 | 马鞍山市阿埃马密封技术科技有限公司 | Self-adapting flexible sealing device |
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| CN1412512A (en) * | 2001-10-08 | 2003-04-23 | 杨润泉 | Disk spring rubber type sealing device between sintering car side beam and bellows |
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| CN201173695Y (en) * | 2007-12-17 | 2008-12-31 | 唐山冶金矿山机械厂 | Elastic sealing ring cold machine |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103090007A (en) * | 2013-01-25 | 2013-05-08 | 中冶北方（大连）工程技术有限公司 | Sealing device between annular cooler trolley breast board and door-shaped cover |
| CN103090007B (en) * | 2013-01-25 | 2015-01-21 | 中冶北方（大连）工程技术有限公司 | Sealing device between annular cooler trolley breast board and door-shaped cover |
| CN103512372A (en) * | 2013-10-21 | 2014-01-15 | 吴�琳 | Waste heat power generation flue gas negative pressure self-compensating sealing device of ring cooler |
| CN103512372B (en) * | 2013-10-21 | 2015-01-21 | 吴�琳 | Waste heat power generation flue gas negative pressure self-compensating sealing device of ring cooler |
| CN103629933A (en) * | 2013-11-01 | 2014-03-12 | 西安越达环保科技有限公司 | Side sealing plate and sintering or cooling equipment |
| CN103629933B (en) * | 2013-11-01 | 2016-03-23 | 西安越达环保科技有限公司 | A kind of side seal plate and sintering or cooling device |
| CN105333151A (en) * | 2015-08-12 | 2016-02-17 | 高彦 | Sealing device used for gap between material transporting cart and sealing cover or air box |
| CN105605923A (en) * | 2016-03-19 | 2016-05-25 | 马鞍山市阿埃马密封技术科技有限公司 | Self-adapting flexible sealing device |
| CN105605923B (en) * | 2016-03-19 | 2017-09-29 | 马鞍山市阿埃马密封技术科技有限公司 | Self-adapting flexible sealing device |
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