Sealing structure of high-temperature tunnel kiln

Abstract

The utility model relates to a high-temperature tunnel kiln sealing structure which comprises a kiln body, a first sealing mechanism is arranged at the bottom of the kiln body, sealing grooves are formed in the left side and the right side of the inner wall of the kiln body, a kiln car is arranged in the whole sealing grooves, and two wheels are fixedly installed at the bottom of the kiln car. Second sealing mechanisms are arranged on the left side and the right side of the kiln car correspondingly, each second sealing mechanism comprises two sand sealing plates, the sand sealing plates are fixedly installed on the left side and the right side of the kiln car correspondingly, storage grooves are formed in the sand sealing plates, and sealing rings are fixedly installed on the opposite sides of the sand sealing plates correspondingly. And small steel ball blocks are inserted into the opposite sides of the sand sealing plates. According to the sealing structure of the high-temperature tunnel kiln, through the arrangement of the first sealing mechanism and the second sealing mechanism, the contact area of the sand sealing plate and the inner wall of the sand sealing groove is reduced, lubrication is conducted, the abrasion degree is reduced as much as possible, and the overall service life of the sealing structure is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of high-temperature tunnel kilns, in particular to a sealing structure of a high-temperature tunnel kiln. Background Art

[0002] Tunnel kiln is a tunnel-like kiln built of refractory materials, thermal insulation materials and building materials, equipped with kiln cars and other vehicles. It is a modern continuous firing thermal equipment. Tunnel kiln is widely used in the roasting production of ceramic products, and is also used in metallurgical industries such as abrasives. It is well known that the most expensive part of the tunnel kiln is the kiln car, which is not only the "kiln bottom" of the tunnel kiln chamber, but also a vehicle for bricks and finished products. It not only has to circulate, but also has to repeatedly withstand the test of constantly changing heat flow between high temperature and normal temperature. Therefore, the sealing structure between the kiln wall of the tunnel kiln chamber and the kiln car is one of the important structures of the high-temperature tunnel kiln, which effectively prevents cold wind from rising and hot air from leaking out and causing damage to the kiln wheel.

[0003] In the process of realizing the present application, the inventors found that there are at least the following problems in the technology: the kiln chamber and kiln wall of the existing high-temperature tunnel kiln are generally sealed with the kiln car by a sand sealing structure, but the contact plate in the sand sealing structure is prone to wear during long-term use, which causes the kiln wheel of the high-temperature tunnel kiln to be damaged by the high temperature during over-use, so further improvement is needed. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a sealing structure for a high-temperature tunnel kiln, which has the advantages of effective lubrication, etc., and solves the problem that the existing sand sealing structure has poor durability during long-term use.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a sealing structure of a high-temperature tunnel kiln, comprising a kiln body, a first sealing mechanism is arranged at the bottom of the kiln body, sealing grooves are opened on the left and right sides of the inner wall of the kiln body, a kiln car is arranged inside the sealing groove as a whole, two wheels are fixedly installed at the bottom of the kiln car, a second sealing mechanism is arranged on the left and right sides of the kiln car, and a refractory brick cushion located inside the sealing groove as a whole is fixedly installed on the top of the kiln car;

[0006] The second sealing mechanism includes a sand sealing plate, and there are two sand sealing plates, which are fixedly installed on the left and right sides of the kiln car respectively. A storage groove is opened inside the sand sealing plate, and a sealing ring is fixedly installed on the opposite side of the sand sealing plate. A small steel ball is inserted into the opposite side of the sand sealing plate, and the small steel ball is located inside the sealing ring. The small steel ball penetrates the sand sealing plate and extends to the inside of the storage groove. A plug is inserted into the front side of the sand sealing plate, and the plug penetrates and extends to the inside of the storage groove. A positioning block with one end in contact with the small steel ball is fixedly installed on the opposite side of the inner wall of the storage groove.

[0007] Furthermore, the first sealing mechanism includes a kiln bottom, the top of the kiln bottom is provided with two slide grooves, the top left and right sides of the kiln bottom are provided with sand sealing grooves, the slide grooves are located as a whole between the sand sealing grooves, the inner walls of the sand sealing grooves are provided with movable grooves on the opposite sides, the inner walls of the sand sealing grooves are fixedly installed with baffles on the opposite sides, and the movable grooves are located above the baffles.

[0008] Furthermore, the sand sealing plate extends into the interior of the sand sealing groove, opposite sides of the sealing ring are in contact with the inner wall of the sand sealing groove, and the small steel ball is located inside the movable groove.

[0009] Furthermore, an oil inlet hole matched with the plug is provided on the front side of the sand sealing plate, and a movable hole matched with the small steel ball is provided on the opposite side of the sand sealing plate.

[0010] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0011] The sealing structure of the high-temperature tunnel kiln reduces the contact area between the sand sealing plate and the inner wall of the sand sealing groove and lubricates the contact area through the arrangement of the first sealing mechanism and the second sealing mechanism, thereby minimizing wear and tear and improving the overall service life of the sealing structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the structure of the utility model;

[0013] Figure 2 For this utility model Figure 1 Enlarged view of point A in the middle;

[0014] Figure 3 This is a schematic diagram of the internal structure of the sand sealing tank of the utility model;

[0015] Figure 4 This is a schematic diagram of the structure of the second sealing mechanism of the utility model.

[0016] In the figure: 1. kiln bottom; 2. kiln body; 3. sealing groove; 4. slide groove; 5. wheel; 6. kiln car; 7. refractory brick cushion; 8. sand sealing groove; 9. sand sealing plate; 10. storage groove; 11. plug; 12. sealing ring; 13. small steel ball; 14. positioning block; 15. movable groove; 16. baffle. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0018] See also Figure 1-4 A sealing structure of a high-temperature tunnel kiln in this embodiment includes a kiln body 2, a first sealing mechanism is arranged at the bottom of the kiln body 2, sealing grooves 3 are opened on the left and right sides of the inner wall of the kiln body 2, a kiln car 6 is arranged inside the sealing groove 3 as a whole, two wheels 5 are fixedly installed at the bottom of the kiln car 6, a second sealing mechanism is arranged on the left and right sides of the kiln car 6, and a refractory brick cushion layer 7 located inside the sealing groove 3 as a whole is fixedly installed on the top of the kiln car 6.

[0019] The provision of the sealing groove 3 prevents the second sealing mechanism from being baked at high temperatures, thereby increasing its service life.

[0020] In this embodiment, the second sealing mechanism includes a sand sealing plate 9, and there are two sand sealing plates 9. The sand sealing plates 9 are respectively fixedly installed on the left and right sides of the kiln car 6. A storage groove 10 is opened inside the sand sealing plate 9, and a sealing ring 12 is fixedly installed on the opposite side of the sand sealing plate 9. A small steel ball 13 is inserted on the opposite side of the sand sealing plate 9. The small steel ball 13 is located inside the sealing ring 12. The small steel ball 13 penetrates the sand sealing plate 9 and extends to the inside of the storage groove 10. A plug 11 is inserted on the front of the sand sealing plate 9. The plug 11 penetrates and extends to the inside of the storage groove 10. A positioning block 14 with one end in contact with the small steel ball 13 is fixedly installed on the opposite side of the inner wall of the storage groove 10. An oil inlet hole compatible with the plug 11 is opened on the front of the sand sealing plate 9, and a movable hole compatible with the small steel ball 13 is opened on the opposite side of the sand sealing plate 9.

[0021] Among them, the setting of the plug 11 makes it convenient to open and close the oil inlet hole, thereby facilitating the addition of lubricating oil.

[0022] It should be noted that the positioning block 14 is provided so that the small steel ball 13 can only move between the small steel ball 13 and the positioning block 14 , thereby effectively limiting the position of the small steel ball 13 .

[0023] In this embodiment, the first sealing mechanism includes a kiln bottom 1, and two slide grooves 4 are opened on the top of the kiln bottom 1. Sand sealing grooves 8 are opened on the left and right sides of the top of the kiln bottom 1. The slide grooves 4 are located between the sand sealing grooves 8 as a whole. The inner wall of the sand sealing groove 8 is opened on the opposite side with a movable groove 15. The inner wall of the sand sealing groove 8 is fixedly installed with a baffle 16 on the opposite side. The movable groove 15 is located above the baffle 16. The sand sealing plate 9 extends to the interior of the sand sealing groove 8. The opposite side of the sealing ring 12 is in contact with the inner wall of the sand sealing groove 8, and the small steel ball 13 is located inside the movable groove 15.

[0024] The wheels 5 are arranged inside the slide 4 to limit the movement, so that the kiln car 6 can move more stably.

[0025] Specifically, the kiln car 6 moves inside the slide 4 via the wheel 5. At this time, the sand sealing groove 8 is filled with sand and does not pass the bottom of the sand sealing plate 9. When the sand sealing plate 9 moves in the sand inside the sand sealing groove 8, the small steel ball 13 in contact with the sand sealing groove 8 rotates in the movable hole, so that the lubricant filled in the storage groove 10 is brought out and contacts the inner wall of the movable groove 15, so that the movable groove 15 is lubricated, thereby reducing the contact area and reducing the friction.

[0026] The working principle of the above embodiment is:

[0027] During use, the kiln car 6 moves inside the slide 4 via the wheel 5. At this time, the sand sealing groove 8 is filled with sand and does not pass the bottom of the sand sealing plate 9. When the sand sealing plate 9 moves in the sand inside the sand sealing groove 8, the small steel ball 13 in contact with the sand sealing groove 8 rotates in the movable hole, so that the lubricant filled in the storage groove 10 is brought out and contacts the inner wall of the movable groove 15, so that the movable groove 15 is lubricated, thereby reducing the contact area and reducing the friction. At the same time, the lubricating oil flows into the sealing ring 12, so that the lubricating oil and the hot air are blocked again, thereby improving the sealing effect.

[0028] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0029] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A sealing structure for a high temperature tunnel kiln, characterized in that: The invention comprises a kiln body (2), wherein a first sealing mechanism is arranged at the bottom of the kiln body (2), sealing grooves (3) are provided on both the left and right sides of the inner wall of the kiln body (2), a kiln car (6) is arranged inside the sealing groove (3), two wheels (5) are fixedly installed at the bottom of the kiln car (6), a second sealing mechanism is arranged on both the left and right sides of the kiln car (6), and a refractory brick cushion layer (7) located inside the sealing groove (3) is fixedly installed on the top of the kiln car (6); The second sealing mechanism comprises a sand sealing plate (9), wherein the number of the sand sealing plates (9) is two and the sand sealing plates (9) are fixedly mounted on the left and right sides of the kiln car (6), respectively, a storage groove (10) is provided inside the sand sealing plate (9), a sealing ring (12) is fixedly mounted on the opposite side of the sand sealing plate (9), a small steel ball (13) is inserted into the opposite side of the sand sealing plate (9), the small steel ball (13) is located inside the sealing ring (12), the small steel ball (13) penetrates the sand sealing plate (9) and extends into the storage groove (10), a plug (11) is inserted into the front side of the sand sealing plate (9), the plug (11) penetrates and extends into the storage groove (10), and a positioning block (14) having one end in contact with the small steel ball (13) is fixedly mounted on the opposite side of the inner wall of the storage groove (10).

2. The sealing structure of a high temperature tunnel kiln according to claim 1, characterized in that: The first sealing mechanism comprises a kiln bottom (1), the top of the kiln bottom (1) is provided with two slide grooves (4), the top of the kiln bottom (1) is provided with sand sealing grooves (8) on both left and right sides, the slide grooves (4) are located between the sand sealing grooves (8) as a whole, the inner walls of the sand sealing grooves (8) are provided with movable grooves (15) on opposite sides, the inner walls of the sand sealing grooves (8) are fixedly provided with baffles (16) on opposite sides, and the movable grooves (15) are located above the baffles (16).

3. The sealing structure of a high temperature tunnel kiln according to claim 2, characterized in that: The sand sealing plate (9) extends into the interior of the sand sealing groove (8), the opposite sides of the sealing ring (12) are in contact with the inner wall of the sand sealing groove (8), and the small steel ball (13) is located inside the movable groove (15).

4. The sealing structure of a high temperature tunnel kiln according to claim 1, characterized in that: The front side of the sand sealing plate (9) is provided with an oil inlet hole matched with the plug (11), and the opposite side of the sand sealing plate (9) is provided with a movable hole matched with the small steel ball (13).

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