Water seal cover for coke oven

Abstract

The utility model discloses a water seal cover for coke oven, include: upper cover, heat -insulating package is set below the upper cover and is connected with the upper cover through the connecting piece. When the heat of coke oven body is transmitted to water seal cover, the heat of coke oven body is first transmitted to heat -insulating package, and heat -insulating package has the heat -insulating effect, can block the heat conduction, heat radiation and heat convection of the heat of coke oven body to upper cover, on one hand reduces the surface temperature of water seal cover, reduces the heat dissipation of water seal cover to outside, is favorable to reduce heat loss, on the other hand, water seal cover reduces heat loss also helps to improve the working environment, reduces the risk that operating personnel is received high temperature radiation, heat -insulating package can block the high temperature in the stove transmission to cover body, makes water seal cover temperature greatly reduce, reduces the risk of cover body deformation, ensures the adhesion of sealing surface and stove interface, avoids the overflow of crude coal gas.

Description

Technical Field

[0001] This application relates to the technical field of exhaust devices for dry distillation gas, and more specifically to an energy-saving coke oven water seal. Background Technology

[0002] Top-loading coke ovens, as key equipment for coke refining, rely on water seals that are sealed via water troughs during production. However, these water seals need to be opened for maintenance of the oven body, such as for dust collector water seals and riser pipe water seals. Water seals are mostly made of cast iron, but existing water seals have the following problems during the coking cycle: During the coking cycle, the surface temperature of the water-sealed furnace cover exceeds 300°C, and the surrounding heat radiation causes the ambient temperature to be higher than 50°C. A large amount of heat energy is lost directly without being utilized, resulting in significant energy loss. High-temperature furnace lids can easily burn operators, and the high-temperature radiation makes the operating environment harsh, increasing the workload of personnel. Traditional cast iron water seal covers lack effective heat insulation and are exposed to temperatures above 300℃ for extended periods. This can lead to thermoplastic deformation, causing the sealing gap to widen. Consequently, the water seal cover may not seal properly, and raw coal gas generated in the carbonization chamber may leak out, polluting the environment. Raw coal gas is flammable and explosive, and its main components can affect the health of workers if they come into contact with it for a long time. Utility Model Content

[0003] This utility model aims to solve at least one of the technical problems existing in the prior art. To this end, this utility model proposes a water seal cover for a coke oven, comprising: Top cover; An insulation pack is disposed below the upper cover and connected to the upper cover via a connector.

[0004] The technical solution adopted by one embodiment of this utility model to solve its technical problem is: the heat insulation package includes an outer shell and heat insulation material filled inside the heat insulation package.

[0005] The technical solution adopted by one embodiment of this utility model to solve its technical problem is: the heat insulation bag further includes a refractory layer filled in the outer shell, and the refractory layer is located on the side of the heat insulation material close to the coke oven body.

[0006] The technical solution adopted by one embodiment of this utility model to solve its technical problem is: the side of the heat insulation package near the coke oven body is a mirror surface.

[0007] The technical solution adopted by one embodiment of this utility model to solve its technical problem is: the lower end of the upper cover is provided with a heat insulation layer.

[0008] The technical solution adopted by one embodiment of this utility model to solve its technical problem is as follows: the lower end of the connector is provided with a lower flange, the heat insulation bag is provided with a lower connecting hole, and the fastener passes through the lower connecting hole and the flange hole on the lower flange to connect the lower flange and the heat insulation bag.

[0009] The technical solution adopted by one embodiment of this utility model to solve its technical problem is: a lower heat insulation gasket is provided between the lower flange and the heat insulation package.

[0010] The technical solution adopted by one embodiment of this utility model to solve its technical problem is as follows: the upper end of the connector is also provided with an upper flange, the upper cover is provided with an upper connecting hole, and the fastener passes through the upper connecting hole and the flange hole on the upper flange and connects the upper flange and the upper cover.

[0011] The technical solution adopted by one embodiment of this utility model to solve its technical problem is: the fastener is provided with a heat-insulating coating.

[0012] The technical solution adopted by one embodiment of this utility model to solve its technical problem is as follows: a connecting rod is installed on the upper end of the cover, the upper end of the connecting rod is used to connect the cover opening component, the lower end of the connecting rod is provided with a connecting flange, the connecting flange is connected to the cover, and a non-metallic gasket is provided between the two.

[0013] The beneficial effects of this utility model are as follows: The water seal cover is a dustproof hole water seal cover or a riser pipe water seal cover. The heat insulation bag has a heat insulation function. The heat insulation bag is set on the upper cover and covers the side of the upper cover close to the coke oven body. When the heat of the coke oven body is transferred to the water seal cover, the heat of the coke oven body is first transferred to the heat insulation bag. The heat insulation bag has a heat insulation function, which can block the heat of the coke oven body from the heat conduction, heat radiation and heat convection to the upper cover. On the one hand, it reduces the surface temperature of the water seal cover and reduces the heat loss of the water seal cover, which is conducive to reducing heat loss. On the other hand, the water seal cover reduces heat loss and also helps to improve the working environment and reduce the risk of operators being exposed to high temperature radiation. The heat insulation bag can block the transmission of high temperature inside the furnace to the cover, which greatly reduces the temperature of the water seal cover, reduces the risk of cover deformation, ensures the fit between the sealing surface and the furnace body interface, and prevents raw coal gas from overflowing. Attached Figure Description

[0014] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which: Figure 1 This is a schematic diagram of the structure of the riser pipe water seal cover described in Embodiment 1 of this application; Figure 2 This is a cross-sectional view of the riser pipe water seal cover described in Embodiment 1 of this application; Figure 3This is a schematic diagram of the structure of the dustproof hole water seal cover described in Embodiment 2 of this application; Figure 4 This is a cross-sectional view of the dustproof hole water seal cover described in Embodiment 2 of this application; Figure 5 This is a partial structural diagram of the dustproof hole water seal cover described in Embodiment 2 of this application. Detailed Implementation

[0015] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0016] In the description of this utility model, "multiple" means two or more; "greater than," "less than," and "exceeding" are understood to exclude the stated number; "above," "below," and "within" are understood to include the stated number. The use of "first" and "second" in the description is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly specifying the number of indicated technical features or their sequential relationship.

[0017] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationships based on the directional or positional relationships shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0018] In this utility model, unless otherwise explicitly defined, the terms "setting," "installing," and "connecting" should be interpreted broadly. For example, they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to a fixed connection, a detachable connection, or an integral molding; they can refer to a mechanical connection; they can refer to the internal connection of two components or the interaction between two components. Those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution. Example

[0019] See attached document Figure 1-2 As shown, Embodiment 1 of this application proposes a coke oven water seal cover, which is a riser pipe water seal cover, and the coke oven water seal cover includes: Top cover 10; The heat insulation package 30 is located on the side below the upper cover 10 near the inside of the coke oven body, and the heat insulation package 30 is connected to the upper cover 10 via a connector 40.

[0020] When it is necessary to open the water seal cover, the opening component lifts the upper cover 10 upward through the connecting rod 20 to overcome the resistance of the water seal, thereby opening the water seal cover to facilitate related operations, such as maintenance and cleaning. After the operation is completed, the opening component controls the connecting rod 20 to make the upper cover 10 slowly descend, re-establish the water seal, and ensure the sealing of the coke oven.

[0021] The heat insulation bag 30 has a heat insulation function. The heat insulation bag 30 is installed on the upper cover 10 and covers the side of the upper cover 10 near the coke oven body. When the heat of the coke oven body is transferred to the water seal cover, the heat of the coke oven body is first transferred to the heat insulation bag 30. The heat insulation bag 30 has a heat insulation function, which can block the heat of the coke oven body from the upper cover 10 through heat conduction, heat radiation and heat convection. On the one hand, it reduces the surface temperature of the water seal cover and reduces the heat loss of the water seal cover, which is conducive to reducing heat loss. On the other hand, the water seal cover's reduction of heat loss also helps to improve the working environment and reduce the risk of operators being exposed to high temperature radiation. The heat insulation package 30 can block the transmission of high temperature inside the furnace to the cover, which greatly reduces the temperature of the cover, reduces the risk of cover deformation, ensures the fit between the sealing surface and the furnace interface, and prevents raw coal gas from overflowing.

[0022] Specifically, the heat insulation package 30 includes an outer shell 31 and a heat insulation material 32 and a refractory layer 33 filled inside the heat insulation package 30, and the refractory layer 33 is located on the side of the heat insulation material 32 closer to the coke oven body.

[0023] The outer shell 31 serves as the outer protective structure of the heat insulation package 30, protecting the internal heat insulation material 32 and the refractory layer 33, while also providing a certain mechanical strength for the entire heat insulation package 30. The heat insulation material 32 is filled inside the outer shell 31 to achieve heat insulation. The refractory layer 33 is located on the side of the heat insulation material 32 that is close to the coke oven body, directly facing the high-temperature environment.

[0024] The outer shell 31 is made of high-temperature resistant metal material. The outer shell 31 includes a shell and a top cover 10. The heat insulation material 32 and the fire-resistant material are filled in the shell. The top cover 10 is sealed to the shell by welding.

[0025] The refractory layer 33 is refractory mortar; the heat insulation material is one or more of the following: expanded perlite, vermiculite, hollow alumina spheres, aluminum silicate fiber, and rock wool.

[0026] In this embodiment, preferably, the side of the heat insulation package 30 closest to the coke oven body is a mirror surface 34. When the high-temperature heat radiation from the coke oven body reaches the mirror surface 34, the mirror surface 34 can reflect most of the heat back into the coke oven, reducing the amount of heat absorbed and transferred upwards by the heat insulation package 30, further enhancing the heat insulation effect of the heat insulation package 30; by reflecting heat, the mirror surface 34 design reduces the heat that the internal materials of the heat insulation package 30 need to withstand, reducing the heat load of the heat insulation material, thereby extending the service life of the heat insulation package 30.

[0027] Preferably, the lower end of the upper cover 10 is provided with a heat insulation layer 11. The heat insulation layer 11 is made of materials with good heat insulation properties, such as ceramic fiber and glass wool. These materials have low thermal conductivity and can effectively block heat conduction. When heat is transferred from the coke oven body to the upper cover 10 through the heat insulation package 30, the heat insulation layer 11 can block most of the heat, further reducing the temperature of the upper cover 10.

[0028] Preferably, the lower end of the connector 40 is provided with a lower flange 41, the heat insulation bag 30 is provided with a lower connecting hole, and the end of the fastener 50 away from its head passes through the flange hole and the lower connecting hole on the lower flange 41 and then locks the lower flange 41 and the heat insulation bag 30 by the nut that cooperates with it. The upper end of the connector 40 is also provided with an upper flange 42, and the upper cover 10 is provided with an upper connecting hole. The end of the fastener 50 away from its head passes through the upper connecting hole and is tightened at the flange hole on the upper flange 42 to connect the upper flange 42 and the upper cover 10.

[0029] Referring to the attached drawings, the connector 40 is connected to the upper cover 10 and the heat insulation bag 30 through the upper flange 42 at the upper end and the lower flange 41 at the lower end, respectively. The structure is reasonably designed, and the installation and disassembly are convenient, which can ensure the stability and sealing of the water seal cover during use.

[0030] Preferably, a lower heat insulation gasket 60 is provided between the lower flange 41 and the heat insulation package 30.

[0031] The lower insulating gasket 60 is made of materials with excellent thermal insulation properties, such as rubber or asbestos. Its function is to form a thermal barrier between the connector 40 and the insulating package 30, reducing the path of heat transfer through the connector 40. Since the connector 40 is usually made of metal with good thermal conductivity, without the insulating gasket, heat would pass between the connector 40 and the insulating package 30, affecting the thermal insulation effect of the water seal cover. The presence of the lower insulating gasket 60 effectively prevents heat conduction, improves the overall thermal insulation performance of the water seal cover, further reduces heat loss, and protects all components from high temperatures. Example

[0032] See attached document Figure 3-5As shown, Embodiment 2 of this application is proposed, wherein the water seal cover in Embodiment 2 is a dust removal hole water seal cover.

[0033] When the water seal cover is a dust removal hole water seal cover, a connecting rod 20 is installed on the upper end of the upper cover 10. The upper end of the connecting rod 20 is used to connect to the cover opening component, and the lower end of the connecting rod 20 is provided with a connecting flange 21. The connecting flange 21 is connected to the upper cover 10, and a non-metallic gasket 70 is provided between the two. The non-metallic gasket 70 can effectively prevent the heat of the upper cover 10 from being transferred to the cover opening component.

[0034] Reference Figure 5 In this embodiment, the fastener 50 is provided with a heat-insulating coating 51. The heat-insulating coating 51 on the fastener 50 is a ceramic coating, heat-insulating paint, etc., which has low thermal conductivity and good heat insulation performance. When heat is transferred to the fastener 50, the heat-insulating coating 51 can effectively block further heat conduction and reduce the possibility of heat being transferred to other components through the fastener 50.

[0035] Of course, this utility model is not limited to the above-described embodiments. Those skilled in the art can make equivalent modifications or substitutions without departing from the spirit of this utility model. All such equivalent modifications and substitutions are included within the scope defined by the claims of this application.

Claims

1. A water seal cover for a coke oven, characterized in that, include: Top cover (10); A heat insulation package (30) is disposed below the upper cover (10) and connected to the upper cover (10) via a connector (40); the heat insulation package (30) includes an outer shell (31) and heat insulation material (32) filled inside the heat insulation package (30).

2. The coke oven water seal cover according to claim 1, characterized in that, The insulation package (30) also includes a refractory layer (33) filled in the outer shell (31), and the refractory layer (33) is located on the side of the insulation material (32) closer to the coke oven body.

3. The coke oven water seal cover according to claim 1, characterized in that, The side of the heat insulation package (30) closest to the coke oven body is a mirror surface (34).

4. The coke oven water seal cover according to claim 1, characterized in that, The lower end of the top cover (10) is provided with a heat insulation layer (11).

5. The coke oven water seal cover according to claim 1, characterized in that, The lower end of the connector (40) is provided with a lower flange (41), and the heat insulation bag (30) is provided with a lower connecting hole. The fastener (50) passes through the lower connecting hole and the flange hole on the lower flange (41) to connect the lower flange (41) and the heat insulation bag (30).

6. The coke oven water seal cover according to claim 5, characterized in that, A lower insulation gasket (60) is provided between the lower flange (41) and the insulation package (30).

7. The coke oven water seal cover according to claim 1, characterized in that, The upper end of the connector (40) is also provided with an upper flange (42), and the upper cover (10) is provided with an upper connecting hole. The fastener (50) passes through the upper connecting hole and the flange hole on the upper flange (42) and connects the upper flange (42) and the upper cover (10).

8. The coke oven water seal cover according to any one of claims 5-7, characterized in that, The fastener (50) is provided with a heat-insulating coating (51).

9. The coke oven water seal cover according to claim 1, characterized in that, A connecting rod (20) is installed on the upper end of the cover (10). The upper end of the connecting rod (20) is used to connect the cover opening component. The lower end of the connecting rod (20) is provided with a connecting flange (21). The connecting flange (21) is connected to the cover (10), and a non-metallic gasket (70) is provided between them.

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