Sealing device for incinerator, and incinerator

Abstract

A sealing device for an incinerator, and an incinerator. The incinerator comprises a water-cooled wear-resistant area (1) and a side wall water-cooled wall (3). The sealing device comprises a first comb-shaped plate (4) and a second comb-shaped plate (5); the first comb-shaped plate (4) is arranged in a gap between the side wall water-cooled wall (3) and the water-cooled wear-resistant area (1), and the first comb-shaped plate (4) is connected to the side wall water-cooled wall (3); the second comb-shaped plate (5) is connected to the water-cooled wear-resistant area (1), and the second comb-shaped plate (5) is arranged on the side of the water-cooled wear-resistant area (1) close to the side wall water-cooled wall (3); a sealing and thermal insulation material is filled between the first comb-shaped plate (4) and the second comb-shaped plate (5). By means of the arrangements, the gap between the side wall water-cooled wall (3) and the water-cooled wear-resistant area (1) of the incinerator is sealed, so as to improve thermal insulation efficiency, reduce flue gas leakage from the incinerator, and reduce ash accumulation below the water-cooled wear-resistant area (1) and the side wall water-cooled wall (3), thus facilitating on-site standardized production, and reducing the difficulty of on-site construction.

Description

Sealing device for incinerator and incinerator Technical Field

[0001] The utility model relates to the technical field of incineration equipment, in particular to a sealing device for an incinerator and the incinerator. Background Art

[0002] The existing Weilun incinerator uses a water-cooled wear-resistant zone design on both sides of the bottom. The corrosion-resistant and wear-resistant properties of the water-cooled wear-resistant zone effectively reduce the maintenance frequency of this area and improve heat exchange efficiency. Due to the narrow and long structure of the water-cooled wear-resistant zone itself, it is prone to bending in the middle section. At the same time, due to factory manufacturing deviations, transportation and storage, etc., the phenomenon of bending in the middle section of the water-cooled wear-resistant zone during on-site installation is very common, resulting in poor sealing between the upper water-cooled wear-resistant zone and the side wall water-cooled wall. This results in low insulation efficiency of the upper water-cooled wear-resistant zone and the side wall water-cooled wall, smoke leakage from the furnace, and ash accumulation under the water-cooled wear-resistant zone and the side wall water-cooled wall, which is not conducive to civilized production on site.

[0003] Utility Model Content

[0004] In order to solve the problem of poor sealing effect between the water-cooled wear-resistant area at the bottom of the existing incinerator and the water-cooled wall of the side wall, the utility model provides a sealing device for the incinerator and the incinerator.

[0005] The technical problems of the present invention are solved by the following technical solutions:

[0006] A sealing device for an incinerator, the incinerator includes a water-cooled wear-resistant area and a side wall water-cooled wall, the sealing device includes a first comb plate and a second comb plate; the first comb plate is arranged in the gap between the side wall water-cooled wall and the water-cooled wear-resistant area, and the first comb plate is connected to the side wall water-cooled wall; the second comb plate is connected to the water-cooled wear-resistant area, and the second comb plate is arranged on the side of the water-cooled wear-resistant area close to the side wall water-cooled wall; the space between the first comb plate and the second comb plate is filled with sealing and heat-insulating material.

[0007] In some embodiments, the sealing and thermal insulation material is ceramic fiber.

[0008] In some embodiments, the water-cooled wear-resistant area includes a pipe and a circular fitting portion, and the second comb-shaped plate includes an arc-shaped notch, and the arc-shaped notch is connected to the outer circumferential surface of the pipe.

[0009] In some embodiments, the arc-shaped notch and the outer circumferential surface of the pipe are connected by welding or magnetic attraction.

[0010] In some embodiments, the width of the second comb-shaped plate does not exceed the distance between the side wall water-cooling wall and the pipe.

[0011] In some embodiments, the distance between the first comb-shaped plate and the second comb-shaped plate is 2 to 4.5 times the circumference of the end surface of the circular fitting portion.

[0012] In some embodiments, in the initial state, the distance between the second comb plate and the first comb plate is 4 to 4.5 times the circumference of the end surface of the circular fitting part; in the working state, the distance between the second comb plate and the first comb plate is 2 to 2.5 times the circumference of the end surface of the circular fitting part.

[0013] In some embodiments, at least two second comb-shaped plates are connected to the water-cooled wear-resistant area, and the sealing and heat-insulating material is filled between the second comb-shaped plates.

[0014] In some embodiments, the width of the second comb-shaped plate is more than half of the width of the first comb-shaped plate.

[0015] The utility model also proposes an incinerator, comprising a water-cooled wear-resistant area and a side wall water-cooled wall. There is a gap between the water-cooled wear-resistant area and the side wall water-cooled wall, and the gap is sealed by the above-mentioned sealing device for the incinerator.

[0016] The beneficial effects of the present invention compared with the prior art are:

[0017] The utility model places the first comb-shaped plate in the gap between the side wall water-cooled wall and the water-cooled wear-resistant area, the first comb-shaped plate is connected to the side wall water-cooled wall, the second comb-shaped plate is connected to the water-cooled wear-resistant area and is located on the side of the water-cooled wear-resistant area close to the side wall water-cooled wall, and the first comb-shaped plate and the second comb-shaped plate are filled with sealing and heat-insulating material, thereby achieving the sealing of the gap between the side wall water-cooled wall and the water-cooled wear-resistant area of ​​the incinerator, improving the heat preservation efficiency, reducing the leakage of smoke in the furnace, reducing the accumulation of ash and slag under the water-cooled wear-resistant area and the side wall water-cooled wall, contributing to civilized production on site, and reducing the difficulty of on-site construction.

[0018] In addition, by setting the width of the second comb-shaped plate not to exceed the distance between the side wall water-cooled wall and the pipe, the side wall water-cooled wall is prevented from expanding downward and directly contacting the second comb-shaped plate during operation.

[0019] In some embodiments, the width of the second comb-shaped plate is set to be greater than half the width of the first comb-shaped plate to ensure uniform compression of the ceramic fibers.

[0020] The utility model also adds a second comb-shaped plate at a position where the water-cooled wear-resistant area has a large curvature and is difficult to seal, and fills sealing and thermal insulation material between the second comb-shaped plates to further seal the gap between the side wall water-cooled wall and the water-cooled wear-resistant area.

[0021] Other beneficial effects of the embodiments of the present invention will be further described below. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] FIG1 is a physical side view of the water-cooled wear-resistant area of ​​the incinerator in an embodiment of the present utility model;

[0023] FIG2 is a schematic diagram of the initial state of the sealing device in an embodiment of the present invention;

[0024] FIG3 is a schematic diagram of the working state of the sealing device in an embodiment of the present invention;

[0025] FIG4 is a schematic structural diagram of the first comb-shaped plate and the second comb-shaped plate in an embodiment of the present invention.

[0026] The reference numerals are as follows: water-cooled wear-resistant area 1 , circular fitting portion 101 , pipe 102 , expansion joint 2 , side wall water-cooled wall 3 , first comb-shaped plate 4 , second comb-shaped plate 5 , arc-shaped notch 501 , ceramic fiber 6 , side wall bottom header 7 . DETAILED DESCRIPTION

[0027] The present invention will be further described below with reference to the accompanying drawings and in combination with preferred embodiments. It should be noted that, unless there is a conflict, the embodiments and features in the embodiments of the present application can be combined with each other.

[0028] It should be noted that the directional terms such as left, right, up, down, top, and bottom in this embodiment are merely relative concepts, or are based on the normal use status of the product, and should not be considered as restrictive.

[0029] In order to solve the problem of poor sealing between the water-cooled wear-resistant zone and the side wall water-cooled wall due to the bending of the water-cooled wear-resistant zone, the embodiment of the present invention proposes a sealing device for an incinerator. As shown in Figures 1 and 2, the incinerator includes a water-cooled wear-resistant zone 1, a side wall water-cooled wall 3, and an expansion joint 2. The side wall water-cooled wall 3 and the expansion joint 2 are connected by a side wall bottom header 7, and the side wall water-cooled wall 3, the side wall bottom header 7 and the expansion joint 2 are all located on one side of the water-cooled wear-resistant zone 1. As shown in Figures 2 and 3, the sealing device includes a first comb plate 4 and a second comb plate 5. The first comb plate is placed in the gap between the side wall water-cooled wall 3 and the water-cooled wear-resistant zone 1. The first comb plate 4 is connected to the side wall water-cooled wall 3 and moves vertically up and down with the side wall water-cooled wall 3. The second comb plate 5 is installed on the side of the water-cooled wear-resistant zone 1 close to the side wall water-cooled wall 3, and a sealing and thermal insulation material is filled between the first comb plate 4 and the second comb plate 5. In this embodiment, the sealing and thermal insulation material is ceramic fiber 6.

[0030] As shown in Figures 2 and 3, when the incinerator goes from a cold state (i.e., initial state) to normal operation (i.e., working state), the side wall water-cooled wall 3 and the first comb-shaped plate 4 expand downward, the water-cooled wear-resistant zone 1 is connected to the side wall of the incinerator (not shown in the figure), and the water-cooled wear-resistant zone 1 and the second comb-shaped plate 5 do not move in the vertical direction. During the process from the cold state (i.e., initial state) to normal operation (i.e., working state), the first comb-shaped plate 4 compresses the ceramic fibers 6 during its downward movement, forming a sealing structure with the second comb-shaped plate 5 below, thereby sealing the gap between the side wall water-cooled wall and the water-cooled wear-resistant zone of the incinerator.

[0031] Specifically, as shown in Figure 4, the water-cooled wear-resistant area 1 includes a pipe 102 and a circular fitting portion 101. The arc-shaped notch 501 of the second comb plate 5 is connected to the outer circumference of the pipe 102. The connection between the two includes but is not limited to welding, magnetic attraction, and other connection methods.

[0032] Furthermore, the installation position of the second comb-shaped plate 5 is related to the downward expansion of the sidewall water-cooling wall 3. When installing the second comb-shaped plate 5, sufficient space for expansion and compression of the ceramic fibers 6 must be reserved. Specifically, in the initial state, the distance between the second comb-shaped plate 5 and the first comb-shaped plate 4 is preferably 4 to 4.5 times the circumference of the end surface of the circular fitting portion 101. In the operating state, the distance between the second comb-shaped plate 5 and the first comb-shaped plate 4 is preferably 2 to 2.5 times the circumference of the end surface of the circular fitting portion 101.

[0033] The width of the second comb-shaped plate 5 must be carefully considered relative to the sidewall water-cooling wall 3 to prevent the sidewall water-cooling wall 3 from expanding downward and coming into direct contact with the second comb-shaped plate 5. Specifically, the width of the second comb-shaped plate 5 should not exceed the distance between the sidewall water-cooling wall 3 and the pipe 102. To ensure uniform compression of the ceramic fibers 6, the width of the second comb-shaped plate 5 should exceed half the width of the first comb-shaped plate 4.

[0034] It is worth noting that in some preferred embodiments, the number of second comb-shaped plates 5 can be adjusted according to the different curvatures of the water-cooled wear-resistant zone 1. Furthermore, second comb-shaped plates 5 are added to locations of the water-cooled wear-resistant zone 1 where the curvature is greater and sealing is difficult, and sealing and heat-insulating material is filled between the second comb-shaped plates 5, preferably ceramic fiber 6.

[0035] The embodiment of the utility model has the following advantages:

[0036] By placing the first comb-shaped plate 4 in the gap between the side wall water-cooled wall 3 and the water-cooled wear-resistant zone 1, the first comb-shaped plate 4 is connected to the side wall water-cooled wall 3, the second comb-shaped plate 5 is connected to the water-cooled wear-resistant zone 1 and is located on the side of the water-cooled wear-resistant zone 1 close to the side wall water-cooled wall 3, and the space between the first comb-shaped plate 4 and the second comb-shaped plate 5 is filled with sealing and thermal insulation material, the gap between the side wall water-cooled wall 3 and the water-cooled wear-resistant zone 1 of the incinerator is sealed, reducing the difficulty of on-site construction, improving insulation efficiency, reducing smoke leakage from the furnace, and reducing ash accumulation below the water-cooled wear-resistant zone 1 and the side wall water-cooled wall 3, thereby facilitating civilized production on site. The number of second comb-shaped plates 5 is adjusted according to the different degrees of curvature of the water-cooled wear-resistant zone 1 to form a more effective seal in a targeted manner.

[0037] The above content is a further detailed description of the present invention in conjunction with specific preferred embodiments, and the specific implementation of the present invention cannot be considered to be limited to these descriptions. For those skilled in the art of the present invention, it is possible to make several equivalent substitutions or obvious modifications without departing from the concept of the present invention, and the performance or use are the same, and all of them should be considered to fall within the scope of protection of the present invention.

Claims

1. A sealing device for an incinerator, the incinerator comprising a water-cooled wear-resistant area (1) and a side wall water-cooled wall (3), characterized in that: The sealing device comprises a first comb plate (4) and a second comb plate (5); The first comb-shaped plate (4) is arranged in a gap between the side wall water-cooling wall (3) and the water-cooling wear-resistant area (1), and the first comb-shaped plate (4) is connected to the side wall water-cooling wall (3); The second comb-shaped plate (5) is connected to the water-cooled wear-resistant area (1), and the second comb-shaped plate (5) is arranged on a side of the water-cooled wear-resistant area (1) close to the side wall water-cooled wall (3); Sealing and heat-insulating material is filled between the first comb-shaped plate (4) and the second comb-shaped plate (5).

2. The sealing device for an incinerator according to claim 1, characterized in that: The sealing and heat-insulating material is ceramic fiber (6).

3. The sealing device for an incinerator according to claim 1, characterized in that: The water-cooled wear-resistant area (1) includes a pipe (102) and a circular fitting portion (101); the second comb-shaped plate (5) includes an arc-shaped notch (501); and the arc-shaped notch (501) is connected to the outer circumferential surface of the pipe (102).

4. The sealing device for an incinerator according to claim 3, characterized in that: The arc-shaped notch (501) is connected to the outer circumferential surface of the pipe (102) by welding or magnetic attraction.

5. The sealing device for an incinerator according to claim 3, characterized in that: The width of the second comb-shaped plate (5) does not exceed the distance between the side wall water-cooling wall (3) and the pipe (102).

6. The sealing device for an incinerator according to claim 3, characterized in that: The distance between the first comb-shaped plate (4) and the second comb-shaped plate (5) is 2 to 4.5 times the circumference of the end surface of the circular fitting portion (101).

7. The sealing device for an incinerator according to claim 6, characterized in that: In the initial state, the distance between the second comb-shaped plate (5) and the first comb-shaped plate (4) is 4 to 4.5 times the circumference of the end surface of the circular affixed portion (101); in the working state, the distance between the second comb-shaped plate (5) and the first comb-shaped plate (4) is 2 to 2.5 times the circumference of the end surface of the circular affixed portion (101).

8. The sealing device for an incinerator according to claim 1, wherein: At least two of the second comb-shaped plates (5) are connected to the water-cooled wear-resistant area (1), and the sealing and heat-insulating material is filled between the second comb-shaped plates (5).

9. The sealing device for an incinerator according to claim 1, wherein: The width of the second comb-shaped plate (5) exceeds half of the width of the first comb-shaped plate (4).

10. An incinerator comprising a water-cooled wear-resistant zone and a side wall water-cooled wall, wherein a gap exists between the water-cooled wear-resistant zone and the side wall water-cooled wall, characterized in that: The gap is sealed using the sealing device for an incinerator according to any one of claims 1 to 9.

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