CN101435659A - Dynamic seal method and seal device of sintering pallet bottom and air box separated beam - Google Patents
Dynamic seal method and seal device of sintering pallet bottom and air box separated beam Download PDFInfo
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- CN101435659A CN101435659A CN 200710158348 CN200710158348A CN101435659A CN 101435659 A CN101435659 A CN 101435659A CN 200710158348 CN200710158348 CN 200710158348 CN 200710158348 A CN200710158348 A CN 200710158348A CN 101435659 A CN101435659 A CN 101435659A
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Abstract
The invention relates to a method for dynamic sealing between the bottom of a trolley of a sintering machine and an isolation beam of a blower and a sealing device thereof and belongs to the field of sintering equipment in the ferrous metallurgy industry. The invention is developed aiming at the problem of the sealing between a connecting part of two blowers on the lower part of an ignition furnace of the prior belt-type sintering machine and the bottom of a crossbeam of a trolley body of the sintering machine is poor so as to cause easy air crossing. A sealing device with a sealing cover plate is arranged between the connecting isolation beam of two blowers of the sintering machine and the bottom of the crossbeam of the trolley body; the lower part of the sealing device is connected with the isolation beam of the blowers; and the upper surface of the cover plate of the sealing device is tightly contacted with the plane of the crossbeam on the bottom of the trolley through gravity or spring force, thereby achieving the dynamic sealing between the connecting part of the two blowers and the bottom of the crossbeam of the trolley body of the sintering machine. The sealing device has the characteristics that the sealing device has good dynamic sealing performance and no air crossing and prevents the trolley body from downwarping, can be used for the sealing between the trolleys of the machine head and the machine tail of the belt-type sintering machine and the blower and can be also used for the sealing between a middle trolley body of the sintering machine and the blower.
Description
Technical field
The invention belongs to the agglomerating plant field in the iron and steel metallurgical industry, mainly relate to prevent sintering machine wind box string wind, keep the stable continuous pallettype sintering machine pallet bottom of blast and the dynamic sealing method and the sealing device of air box separated beam.
Background technology
Between two bellows junctions of continuous pallettype sintering machine ignition furnace below and the transfer table body of sintering engine crossbeam bottom, design and have fixingly, above air box separated beam, below the trolley body bottom girder, generally all leave certain clearance every beam for reducing bellows string wind.Carry the material of constant weight on the sintering pallet, under the effect of exhausting negative pressure and trolley body deadweight, make chassis be subjected to downward active force, chassis also will be subjected to the alternation effect of elevated temperature heat load simultaneously, and the long-time thus indivedual trolley bodies in back that use produce certain amount of deflection downwards.If do not leave enough gaps between trolley body bottom girder and the fixing air box separated beam, chassis when mobile easily with fixing every beam mutually scratching cause equipment breakdown, influence is produced, and causes certain economic loss.The generation of problems such as but the existence of this gap makes that being controlled to of igniting exhausting negative pressure of bellows is a difficult problem below ignition furnace, produces string wind between the bellows because the gap of leaving makes, and the exhausting negative pressure that causes lighting a fire raises, and igniter fuel consumption is big.
At present, be sealed with multiple mode between chassis and bellows, the sealing of most sealing device and trolley body all is linear sealing, does not also well solve for the contradiction of chassis downwarp and sealing, does not reach good sealing effectiveness.
Summary of the invention
The dynamic sealing method and the sealing device that the purpose of this invention is to provide a kind of sintering pallet bottom and air box separated beam, sealing method and sealing device adopt the sealing that contacts of face and face, have solved the sealing problem of chassis and bellows preferably.Leak out to reducing the harmful of sintering machine, the production efficiency that improves sintering machine has important function.
The present invention realizes by seal cover board and positioner thereof.Its dynamic sealing method is: connect the dynamic sealing device that is provided with the with closure plate between beam and trolley body crossbeam bottom at sintering machine two bellows, the bottom of sealing device is connected with air box separated beam, by gravity or spring force the top of sealing device cover plate closely contacted at horizontal level with pallet bottom crossbeam plane, the movable sealing of realization face and face reaches the good isolation sealing between bellows and the bellows; Overcome simultaneously the downwarp of trolley body effectively.
The technical scheme that realizes this encapsulating method is:
Scheme one: but dynamic sealing device of the present invention, and the base plate that comprises seal cover board, fixed-bearing axis, riser, balancing weight and fixedly lay sealing device is formed.The structure of seal cover board is the connecting lever type of an off-centre, and there is semi-circular groove at the middle part of connecting lever, and semi-circular groove is installed on the bolster, and back shaft connected by riser and negative and being connected every beam of bellows; The plane contact of the top and trolley body crossbeam bottom of the seal cover board of connecting lever one side, the opposite side of connecting lever have the balancing weight of the plane contact of the top and trolley body crossbeam bottom that keeps seal cover board.Under the gravity effect of balancing weight, seal cover board rotates around back shaft and is upturned, and closely contacts with chassis crossbeam bottom surface above the seal cover board, has realized effective movable sealing.
In order to prevent in the actual motion,, balancing weight and seal cover board are made one owing to coming off of balancing weight reduced sealing effectiveness.
The inclined-plane that the sealing surface of a level is arranged on the described connecting lever shape seal cover board and intersect with it, the angle on horizontal plane and inclined-plane is 8 °-14 °.
The horizontal seal face of connecting lever type seal cover board and the intersection point on inclined-plane are the 110-160 millimeter to the vertical range in first round groove center of circle of connecting lever, and horizontal range is the 80-120 millimeter.
Scheme two: the seal cover board that is positioned at below the chassis bottom girder is fixed on the base plate by compression spring, and base plate is connected with air box separated beam; Be provided with the thrust buting iron that is used for the sealing plate location in the outside of compression spring along the edge of base plate; Centre position between seal cover board and base plate is provided with the flexible sealing plate.Spring force boosts seal cover board, closely contacts with chassis crossbeam bottom surface, reaches the purpose of seal isolation.The thrust buting iron is located sealing plate, and allows the space that moves up and down.
Scheme three: have semi-circular groove below seal cover board one end, groove and back shaft flexibly connect, and back shaft is installed in an end of base plate by riser, and base plate is connected with air box separated beam; Be provided with compression spring between the other end of seal cover board and base plate.The other end of seal cover board by jack-up, contacts with trolley body crossbeam bottom surface under the effect of spring force, has realized the effective sealing between two bellows.
When pallet moves, be installed in seal cover board on the air box separated beam under the effect of gravity or spring force, dynamically closely contact, reached the purpose of sealing with the pallet bottom crossbeam.
The invention has the beneficial effects as follows, because the top and trolley body crossbeam of seal cover board bottom is that face contacts with face, so solved the sealing problem of chassis and bellows preferably.Leak out to reducing the harmful of sintering machine, the production efficiency that improves sintering machine has important function.Make that freely the controlling of igniting exhausting negative pressure of bellows becomes a reality below ignition furnace, reduced the string wind between the bellows, the effect that has also reduced simultaneously because of high negative pressure causes mixture ventilation decline to influence the problem of sintering machine output.Reduce igniting exhausting negative pressure and can save a large amount of igniter fuels, reduce the igniting energy consumption of sintering machine.This dynamic sealing device not only can be used for the sealing of sintering machine head end, drive end unit chassis and bellows, can also be used for the sealing of sintering machine way station car body and bellows.The sealing device has also overcome the problem of trolley body downwarp simultaneously, has avoided the equipment breakdowns such as scratching that take place therefrom.
Description of drawings
Fig. 1-Fig. 3 is the structural representation of three schemes of the present invention, among the figure 1 be seal cover board, 2 for back shaft, 3 for riser, 4 for negative, 5 for air box separated beam, 6 for chassis bottom girder, 7 for push and block iron, 9 is for flexible sealing plate, 10 is compression spring till the balancing weight, 8, I, II are bellows; β is the angle on horizontal plane and inclined-plane; H and L are vertical range and the horizontal range of the intersection point on horizontal seal face and inclined-plane to first round groove center of circle of connecting lever.
The specific embodiment
Below in conjunction with description of drawings the specific embodiment of the present invention.Dynamic sealing method of the present invention is: connect the dynamic sealing device that is provided with closure plate 1 between beam 5 and trolley body crossbeam 6 bottoms at sintering machine two bellows I, II, the bottom of sealing device is connected with air box separated beam 5, by gravity or spring force the top of sealing device cover plate 1 closely contacted at horizontal level with pallet bottom crossbeam 5 planes, contacting of realization face and face reaches the good isolation sealing between bellows and the bellows.
The embodiment 1 that implements dynamic sealing method of the present invention is (seeing accompanying drawing 1): comprise seal cover board 1, fixed-bearing axis 2, riser 3, balancing weight 7 and fixedly lay base plate 4 compositions of sealing device.The structure of seal cover board 1 is the connecting lever type of an off-centre, and there is semi-circular groove at the middle part of connecting lever, and semi-circular groove is installed on the bolster 2, and back shaft connected by riser 3 and negative 4 and being connected every beam 5 of bellows; The plane contact of top and trolley body crossbeam 6 bottoms of the seal cover board 1 of connecting lever one side, the opposite side of connecting lever have the balancing weight 7 of the plane contact of the top and trolley body crossbeam bottom that keeps seal cover board.Under the gravity effect of balancing weight 7, seal cover board 1 rotates around back shaft 2 and is upturned, and closely contacts with chassis crossbeam 6 bottom surfaces above the seal cover board 1, has realized effective movable sealing.Angle between the horizontal seal face of connecting lever shape seal cover board and the inclined-plane that intersects with it is 10 °.The horizontal seal face of connecting lever type seal cover board and the intersection point on inclined-plane are 130 millimeters to the vertical range H in first round groove center of circle of connecting lever, and horizontal range L is 100 millimeters.
Embodiment 2 (seeing accompanying drawing 2): the seal cover board 1 that is positioned at below the chassis bottom girder is fixed on the base plate 4 by compression spring 10, and base plate 4 is connected with air box separated beam 5; Be provided with the thrust buting iron 8 that is used for seal cover board 1 location in the outside of compression spring 10 along the edge of base plate 4; Centre position between seal cover board and base plate is provided with flexible sealing plate 9.Spring force boosts seal cover board 1, closely contacts with chassis crossbeam bottom surface, reaches the purpose of seal isolation.Thrust buting iron 8 is located sealing plate, and allows the space that moves up and down.
Embodiment 3 (seeing accompanying drawing 3): have semi-circular groove below seal cover board 1 one ends, groove and back shaft 2 flexibly connects, and back shaft 2 is installed in an end of base plate 4 by riser 3, and base plate 4 is connected with air box separated beam 5; Be provided with compression spring 10 between the other end of seal cover board and base plate.The other end of seal cover board 1 by jack-up, contacts with trolley body crossbeam bottom surface under the effect of spring force, has realized that two bellows connect the effective sealing between beam and trolley body crossbeam bottom.
Claims (5)
1, the dynamic sealing method of a kind of sintering pallet bottom and air box separated beam, realize by seal cover board and positioner thereof, it is characterized in that: connect the dynamic sealing device that between beam (5) and trolley body crossbeam (6) bottom, is provided with closure plate (1) at sintering machine two bellows, the bottom of sealing device is connected with air box separated beam (5), make the top of sealing device cover plate (1) closely contact the movable sealing of realization face and face at horizontal level by gravity or spring force with pallet bottom crossbeam (6) plane.
2, a kind of sintering pallet bottom of claim 1 and sealing device of air box separated beam realized is made up of seal cover board and cover plate positioner, it is characterized in that:
The structure of a, seal cover board (1) is the connecting lever type of an off-centre, and there is semi-circular groove at the middle part of connecting lever, and semi-circular groove is installed on the bolster (2), and back shaft (2) connects with negative (4) and being connected every beam (5) of bellows by riser (3); The plane contact of top and trolley body crossbeam (6) bottom of the seal cover board (1) of connecting lever one side, the opposite side of connecting lever have the balancing weight (7) of the plane contact of the top and trolley body crossbeam bottom that keeps seal cover board;
B, the seal cover board (1) that is positioned at below the chassis bottom girder (6) are fixed on the base plate (4) by compression spring (10), and base plate (4) is connected with air box separated beam (5); Be provided with the thrust buting iron (8) that is used for the sealing plate location in the outside of compression spring (10) along the edge of base plate (4); Centre position between seal cover board (1) and base plate (4) is provided with flexible sealing plate (9);
Have semi-circular groove below c, seal cover board (1) one end, groove and back shaft (2) flexibly connect, and back shaft (2) is installed in an end of base plate (4) by riser (3), and base plate (4) is connected with air box separated beam (5); Be provided with compression spring (10) between the other end of seal cover board (1) and base plate (4).
3, the sealing device of sintering pallet bottom according to claim 2 and air box separated beam is characterized in that: described balancing weight (7) is made one with seal cover board (1).
4, the sealing device of sintering pallet bottom according to claim 2 and air box separated beam is characterized in that: the inclined-plane that the sealing surface of a level is arranged on the described connecting lever shape seal cover board (1) and intersect with it, the angle on horizontal plane and inclined-plane is 8 °-14 °.
5, the sealing device of sintering pallet bottom according to claim 4 and air box separated beam, it is characterized in that: the horizontal seal face of connecting lever type seal cover board (1) and the intersection point on inclined-plane are the 110-160 millimeter to the vertical range in first round groove center of circle of connecting lever, and horizontal range is the 80-120 millimeter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200710158348 CN101435659A (en) | 2007-11-16 | 2007-11-16 | Dynamic seal method and seal device of sintering pallet bottom and air box separated beam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200710158348 CN101435659A (en) | 2007-11-16 | 2007-11-16 | Dynamic seal method and seal device of sintering pallet bottom and air box separated beam |
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| Publication Number | Publication Date |
|---|---|
| CN101435659A true CN101435659A (en) | 2009-05-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200710158348 Pending CN101435659A (en) | 2007-11-16 | 2007-11-16 | Dynamic seal method and seal device of sintering pallet bottom and air box separated beam |
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| CN (1) | CN101435659A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102997668A (en) * | 2012-12-04 | 2013-03-27 | 中冶北方（大连）工程技术有限公司 | Elastic sealing abruption device of sintering machine air box |
| CN103557706A (en) * | 2013-10-29 | 2014-02-05 | 王强 | Head and tail sealing device of sintering machine |
| CN107411544A (en) * | 2017-08-18 | 2017-12-01 | 江门市盈德钢化玻璃制品有限公司 | A kind of pressure cooker with steam blowout prevention Lid of glass pot |
-
2007
- 2007-11-16 CN CN 200710158348 patent/CN101435659A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102997668A (en) * | 2012-12-04 | 2013-03-27 | 中冶北方（大连）工程技术有限公司 | Elastic sealing abruption device of sintering machine air box |
| CN103557706A (en) * | 2013-10-29 | 2014-02-05 | 王强 | Head and tail sealing device of sintering machine |
| CN107411544A (en) * | 2017-08-18 | 2017-12-01 | 江门市盈德钢化玻璃制品有限公司 | A kind of pressure cooker with steam blowout prevention Lid of glass pot |
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Open date: 20090520 |