Sealing device between air chambers of grate cooler

Abstract

The utility model discloses a sealing device between air chambers of a grate cooler, the grate cooler comprises a plurality of air chambers, a grate bed and a movable beam installed on the grate bed, an air chamber partition plate is fixedly arranged between adjacent air chambers, the movable beam is obliquely arranged and penetrates through the air chamber partition plate, and the sealing device is installed between the air chamber partition plate and the movable beam. The sealing device comprises a telescopic sleeve, a first connecting piece and a second connecting piece, the telescopic sleeve is fixedly arranged between the first connecting piece and the second connecting piece, the first connecting piece is hermetically connected to the air chamber partition plate, the second connecting piece is hermetically connected to the movable beam, and a sliding gap is formed between the telescopic sleeve and the movable beam, so that the sealing effect between the movable beam and the air chamber partition plate is improved; and the phenomenon of air channeling between adjacent air chambers is solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of grate coolers, and particularly relates to a sealing device between the air chambers of a grate cooler. Background Art

[0002] At present, the third-generation grate coolers in China drive the movable beam and the movable grate bed connected thereto to reciprocate through hydraulic cylinders, so as to realize the conveying of clinker on the grate bed. For the air chamber to facilitate the reciprocating movement of the movable beam passing through the air chamber partition, a gap of 5-10 mm is left between the movable beam and the air chamber partition. Since a movable grate bed often spans several air chambers and the air pressures in different air chambers are different, there will be a phenomenon of air leakage between two adjacent air chambers, reducing the cooling effect of the grate cooler.

[0003] In the prior art, in order to reduce the air leakage between the air chambers, relatively soft materials such as rubber or polytetrafluoroethylene are used to tightly adhere to the movable beam to reduce the gap between the movable beam and the air chamber partition, playing a sealing role. This method can achieve a certain sealing effect at the beginning of use, but after using for a period of time, as the soft seal rubs against the movable beam, the sealing material gradually wears, causing the gap between the movable beam and the air chamber partition to gradually increase, and there will still be a certain degree of air leakage between the air chambers, reducing the sealing effect and thus reducing the cooling effect of the grate cooler. Summary of the Utility Model

[0004] In view of the problems and deficiencies existing in the above-mentioned prior art, the utility model provides a sealing device between the air chambers of a grate cooler, improving the sealing effect between the movable beam and the air chamber partition and solving the phenomenon of air leakage between adjacent air chambers.

[0005] The utility model is realized through the following technical solutions:

[0006] A sealing device between the air chambers of a grate cooler, the grate cooler includes a plurality of air chambers, a grate bed, and a movable beam installed on the grate bed. An air chamber partition is fixedly provided between adjacent air chambers. The movable beam is inclined and penetrates the air chamber partition. The sealing device is installed between the air chamber partition and the movable beam. The sealing device includes a telescopic sleeve, a first connecting piece, and a second connecting piece. The telescopic sleeve is fixedly provided between the first connecting piece and the second connecting piece. The first connecting piece is sealingly connected to the air chamber partition, and the second connecting piece is sealingly connected to the movable beam. A sliding gap is formed between the telescopic sleeve and the movable beam, improving the sealing effect between the movable beam and the air chamber partition and solving the phenomenon of air leakage between adjacent air chambers.

[0007] Furthermore, the first connecting piece is perpendicular to the air chamber partition, the second connecting piece is coaxially arranged with the movable beam. The telescopic sleeve includes an integrally formed flexible telescopic tube and a universal bending tube. The flexible telescopic tube is sealingly connected to the second connecting piece, and the flexible telescopic tube can telescopically move along the extending direction of the movable beam. The universal bending tube is sealingly connected between the first connecting piece and the flexible telescopic tube.

[0008] Furthermore, the compliance of the flexible telescopic pipe is greater than that of the universal bending pipe.

[0009] Furthermore, when the flexible telescopic pipe undergoes telescopic movement, the change in the inner diameter of the flexible telescopic pipe is less than 10 mm.

[0010] Furthermore, both the first connecting piece and the second connecting piece are flanges. The first connecting piece is welded to the air chamber partition plate, and the second connecting piece is welded to the movable beam.

[0011] Furthermore, the first connecting piece is a magnetic part. The outer side of the first connecting piece is wrapped with a sealing rubber sleeve. The first connecting piece can be adsorbed to the air chamber partition plate, facilitating the quick connection of the first connecting piece to the air chamber partition plate;

[0012] Furthermore, the inner diameter of the telescopic sleeve is greater than the outer diameter of the movable beam, and the minimum clearance between the telescopic sleeve and the movable beam is greater than 20 mm, defining the distance between the telescopic sleeve and the movable beam to prevent wear between the telescopic sleeve and the movable beam.

[0013] Furthermore, a rubber seal is filled between the air chamber partition plate and the movable beam to improve the sealing performance between the air chamber partition plate and the movable beam.

[0014] Furthermore, the powers of the fans in each air chamber are different, and each air chamber has a different air pressure.

[0015] Furthermore, the air chamber includes a first air chamber and a second air chamber. There is an air chamber partition plate between the first air chamber and the second air chamber, and the air pressures of the first air chamber and the second air chamber are different.

[0016] Advantages of the present utility model:

[0017] The cavity of the telescopic sleeve is used to separate two adjacent air chambers. The air chambers on both sides of the telescopic sleeve are separate spaces. The telescopic sleeve is sleeved and fixed to the movable beam through the second connecting piece. There is no direct contact between the telescopic sleeve and the movable beam, avoiding frictional wear of the air chamber seal and improving the sealing effect between the air chamber partition plate and the movable beam. Description of the Drawings

[0018] Figure 1 A schematic installation position diagram for illustrating an exemplary embodiment of a sealing device between air chambers of a grate cooler in the present utility model;

[0019] Figure 2 A schematic structural diagram for illustrating an exemplary embodiment of a sealing device between air chambers of a grate cooler in the present utility model;

[0020] Figure 3 A schematic structural diagram for illustrating another exemplary embodiment of a sealing device between air chambers of a grate cooler in the present utility model.

[0021] List of components and reference numerals:

[0022] 1. Air chamber partition; 2. Telescopic sleeve; 21. Flexible telescopic pipe; 22. Universal bending pipe; 3. Movable beam; 4. First air chamber; 5. Second air chamber; 6. First connecting piece; 7. Second connecting piece. Specific embodiments

[0023] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative work belong to the scope of protection of the present invention.

[0024] It should be noted that the orientation terms such as left, right, up, down, front, and back in the embodiments of the present invention are only relative concepts to each other or are referenced based on the normal use state of the product, that is, the traveling direction of the product, and should not be considered as restrictive.

[0025] In addition, it should also be noted that the dynamic terms such as "relative movement" mentioned in the embodiments of the present invention not only refer to the change in position, but also include movements such as rotation and rolling where there is no relative change in position but the state changes.

[0026] Finally, it should be noted that when a component is referred to as being "located" or "disposed on" another component, it can be on the other component or there may be an intermediate component at the same time. When a component is referred to as being "connected to" another component, it can be directly connected to the other component or there may be an intermediate component at the same time.

[0027] As Figures 1 to 3 shown, a sealing device between the air chambers of a grate cooler. The grate cooler includes multiple air chambers, a grate bed, and a movable beam 3 installed on the grate bed. An air chamber partition 1 is fixedly provided between adjacent air chambers. The movable beam 3 is inclined and penetrates through the air chamber partition 1. The sealing device is installed between the air chamber partition 1 and the movable beam 3. The sealing device includes a telescopic sleeve 2, a first connecting piece 6, and a second connecting piece 7. The telescopic sleeve 2 is fixedly provided between the first connecting piece 6 and the second connecting piece 7. The first connecting piece 6 is sealingly connected to the air chamber partition 1, and the second connecting piece 7 is sealingly connected to the movable beam 3. A sliding gap is formed between the telescopic sleeve 2 and the movable beam 3 to improve the sealing effect between the movable beam 3 and the air chamber partition 1 and solve the air leakage phenomenon between adjacent air chambers.

[0028] In one embodiment, the movable beam 3 reciprocates with the drive part of the grate cooler at a set frequency, pushing the clinker to move towards the outlet direction on the grate bed and cooling it. One end of the telescopic sleeve 2 is fixed to the air chamber partition 1 through the first connecting piece 6, and the other end is sleeved and fixed to the movable beam 3 through the second connecting piece 7. With the reciprocating movement of the movable beam 3, the telescopic sleeve 2 is repeatedly stretched and compressed. Since there is an activity gap between the telescopic sleeve 2 and the movable beam 3, there is no direct friction between the telescopic sleeve 2 and the movable beam 3. Therefore, the telescopic sleeve 2 basically does not wear during use, effectively improving the sealing effect between adjacent air chambers. As Figure 1 shown, the inner space of the telescopic sleeve 2 communicates with the first air chamber 4, and the outer space of the telescopic sleeve 2 communicates with the second air chamber 5, effectively preventing air leakage between the first air chamber 4 and the second air chamber 5.

[0029] Preferably, the first connecting piece 6 is perpendicular to the air chamber partition 1, the second connecting piece 7 is coaxially arranged with the movable beam 3, the telescopic sleeve 2 includes an integrally formed flexible telescopic tube 21 and a universal bending tube 22, the flexible telescopic tube 21 is hermetically connected to the second connecting piece 7, and the flexible telescopic tube 21 can telescopically move along the extending direction of the movable beam 3. The universal bending tube 22 is hermetically connected between the first connecting piece 6 and the flexible telescopic tube 21.

[0030] Preferably, the compliance of the flexible telescopic tube 21 is greater than that of the universal bending tube 22.

[0031] In one embodiment, when the movable beam 3 applies pressure or tensile force to the flexible telescopic tube 21 through the second connecting piece 7, since the flexible telescopic tube 21 is more likely to deform than the universal bending tube 22, when the movable beam 3 reciprocates, the flexible telescopic tube 21 undergoes tensile and compressive deformation, and the universal bending tube 22 remains basically unchanged.

[0032] It should be noted that the universal bending tube 22 is used for the construction personnel to bend the universal bending tube 22 during installation, so that the flexible telescopic tube 21 and the movable beam 3 can be coaxial, ensuring the force balance of the flexible telescopic tube 21 and improving the service life of the entire telescopic sleeve 2.

[0033] Preferably, when the flexible telescopic tube 21 undergoes telescopic movement, the inner diameter change of the flexible telescopic tube 21 is less than 10 mm.

[0034] Preferably, both the first connecting piece 6 and the second connecting piece 7 are flanges. The first connecting piece 6 is welded to the air chamber partition 1, and the second connecting piece 7 is welded to the movable beam 3.

[0035] In one embodiment, one end of the telescopic sleeve 2 is welded to the air chamber partition 1 through a flange, and the other end is welded to the movable beam 3 through a flange. The welding method is full welding to ensure the sealing performance of the telescopic sleeve 2.

[0036] Preferably, the first connecting member 6 is a magnetic member, and the outer side of the first connecting member 6 is wrapped with a sealing rubber sleeve. The first connecting member 6 can be adsorbed to the air chamber partition 1, facilitating the quick connection of the first connecting member 6 to the air chamber partition 1;

[0037] Preferably, the inner diameter of the telescopic sleeve 2 is larger than the outer diameter of the movable beam 3, and the minimum clearance between the telescopic sleeve 2 and the movable beam 3 is greater than 20 mm, defining the distance between the telescopic sleeve 2 and the movable beam 3 to prevent wear between the telescopic sleeve 2 and the movable beam 3.

[0038] Preferably, rubber sealing is filled between the air chamber partition 1 and the movable beam 3 to improve the sealing performance between the air chamber partition 1 and the movable beam 3.

[0039] Preferably, the powers of the fans in each air chamber are different, and each air chamber has a different air pressure.

[0040] Preferably, the air chamber includes a first air chamber 4 and a second air chamber 5. There is an air chamber partition 1 between the first air chamber 4 and the second air chamber 5, and the air pressures of the first air chamber 4 and the second air chamber 5 are different.

[0041] To improve the sealing effect between air chambers, solve the air leakage phenomenon between air chambers, and ensure good sealing between the movable beam 3 and the air chamber partition 1. By changing the traditional sealing method between the air chamber partition 1 and the movable beam 3, using the telescopic sleeve 2 as a seal, on one side of the air chamber partition 1, a telescopic sleeve 2 is added between the movable beam 3 and the air chamber partition 1. The telescopic sleeve 2 is made of a material that can withstand both high temperatures and wear.

[0042] When adopting the above-mentioned sealing device between the air chambers of the grate cooler, a telescopic sleeve 2 is installed between two adjacent air chambers. One end of the telescopic sleeve 2 is fixed on the air chamber partition 1, and the other end is fixed on the movable beam 3. The middle telescopic part is sleeved on the movable beam 3 and can move reciprocally with the movable beam 3. Using the cavity of the telescopic sleeve 2, the gas between the two air chambers is completely separated. A sliding gap is provided between the telescopic sleeve 2 and the movable beam 3, effectively avoiding wear between the telescopic sleeve 2 and the movable beam 3.

[0043] The above are only the embodiments of the present application and are not used to limit the present application. For those skilled in the art, various changes and modifications can be made to the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included within the scope of the claims of the present application.

Claims

1. A sealing device between the air chambers of a grate cooler. The grate cooler includes a plurality of air chambers, a grate bed, and a movable beam installed on the grate bed. An air chamber partition is fixedly provided between adjacent air chambers. The movable beam is inclined and penetrates through the air chamber partition. It is characterized in that, The sealing device is installed between the air chamber partition plate and the movable beam. The sealing device includes a telescopic sleeve, a first connecting member, and a second connecting member. The telescopic sleeve is fixedly arranged between the first connecting member and the second connecting member. The first connecting member is sealingly connected to the air chamber partition plate, the second connecting member is sealingly connected to the movable beam, and a sliding gap is formed between the telescopic sleeve and the movable beam.

2. The sealing device between the air chambers of the grate cooler according to claim 1, characterized in that, The first connecting member is perpendicular to the air chamber partition plate, and the second connecting member is coaxially arranged with the movable beam. The telescopic sleeve includes an integrally formed flexible telescopic tube and a universal bending tube. The flexible telescopic tube is sealingly connected to the second connecting member, and the flexible telescopic tube can telescopically move along the extending direction of the movable beam. The universal bending tube is sealingly connected between the first connecting member and the flexible telescopic tube.

3. The sealing device between the air chambers of the grate cooler according to claim 2, characterized in that, The compliance of the flexible telescopic tube is greater than the compliance of the universal bending tube.

4. A sealing device between the air chambers of a grate cooler according to claim 2, characterized in that, When the flexible telescopic tube performs a telescopic movement, the variation in the inner diameter of the flexible telescopic tube is less than 10 mm.

5. The sealing device between the air chambers of the grate cooler according to claim 1, characterized in that, Both the first connecting member and the second connecting member are flanges. The first connecting member is welded to the air chamber partition plate, and the second connecting member is welded to the movable beam.

6. The sealing device between the air chambers of the grate cooler according to claim 1, characterized in that, The first connecting member is a magnetic member, and the outer side of the first connecting member is wrapped with a sealing rubber sleeve. The first connecting member can be adsorbed to the air chamber partition plate.

7. The sealing device between the air chambers of the grate cooler according to claim 1, characterized in that, The inner diameter of the telescopic sleeve is greater than the outer diameter of the movable beam, and the minimum gap between the telescopic sleeve and the movable beam is greater than 20 mm.

8. The sealing device between the air chambers of the grate cooler according to claim 1, characterized in that, A rubber seal is filled between the air chamber partition plate and the movable beam.

9. The sealing device between the air chambers of the grate cooler according to claim 1, characterized in that The powers of the fans in each air chamber are different, and each air chamber has a different air pressure.

10. A sealing device between the air chambers of a grate cooler according to claim 9, characterized in that, The air chamber includes a first air chamber and a second air chamber. There is an air chamber partition plate between the first air chamber and the second air chamber, and the air pressures of the first air chamber and the second air chamber are different.

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