A sealing structure for a slag outlet of a mesh belt tempering furnace

Abstract

The present application relates to a sealing structure for a slag outlet of a mesh-belt tempering furnace, which sequentially arranges a first sealing member and a second sealing member in the slag outlet, and seals the outlet end of the slag outlet with a closing member, so as to hold and fix the first sealing member and the second sealing member in the slag outlet, and utilizes the heat insulation performance of the first sealing member and the second sealing member to isolate the high temperature in the furnace, thereby improving the heat preservation and heat insulation effect. At the same time, the triple sealing effect of the first sealing member, the second sealing member and the closing member prevents hot air or residue from escaping through the slag outlet when hot air circulation is carried out in the furnace. In addition, the connection method of the closing member and the fixing member in sliding connection makes it easy to open the slag outlet and clean up the waste slag.

Description

Technical Field

[0001] The utility model relates to a sealing structure for a slag outlet of a mesh belt type tempering furnace, belonging to the technical field of heat treatment equipment. Background Art

[0002] The mesh belt tempering furnace is a kind of equipment commonly used in the process of metal heat treatment. Its design purpose is to temper the metal workpiece by controlling the temperature and time. During the heat treatment process, oxides, carbides or other impurities may be generated on the surface of the metal workpiece. Therefore, it is necessary to open a slag outlet on the furnace to discharge these impurities through the slag outlet to ensure the cleanliness of the furnace environment, so as to ensure that the workpiece is evenly heated and cooled. If these impurities are not discharged in time, they may accumulate in the furnace, affecting the air flow and temperature distribution in the furnace, and then affecting the heat treatment effect of the workpiece. Therefore, the slag outlet is an important part of the mesh belt tempering furnace.

[0003] At the same time, in order to ensure the thermal insulation effect of the furnace, it is necessary to set an openable and closable sealing structure at the slag outlet. During heat treatment, the slag outlet is sealed, and when impurities are cleaned, the slag outlet is opened. The existing sealing structure generally includes a sealing door and a refractory filler filled in the slag outlet. Therefore, the sealing of the slag outlet is mainly achieved by a sealing door, which is generally installed by bolting. The sealing and opening process is cumbersome, and the thermal insulation effect is general. Utility Model Content

[0004] The utility model aims to provide a sealing structure for a slag outlet of a mesh belt tempering furnace, which has simple sealing and opening processes and better heat insulation effects.

[0005] In order to achieve the above object, the utility model provides the following technical solution: a sealing structure for a slag outlet of a mesh belt tempering furnace, the sealing structure comprising:

[0006] A slag outlet, the slag outlet comprising a first space connected to the interior of the furnace and a second space connected to the exterior of the furnace, wherein the cross-sectional area of ​​the second space is larger than the cross-sectional area of ​​the first space, and a fixing member is arranged at the outlet end of the second space;

[0007] a heat-insulating seal, comprising a first seal disposed in the first space and a second seal disposed in the second space;

[0008] The closing member is slidably connected with the fixing member in a vertical plane to block or open the slag outlet, and blocks the slag outlet to hold the first sealing member and the second sealing member in the first space and the second space respectively.

[0009] Furthermore, the first sealing member is a refractory heat-insulating brick, and the second sealing member is a refractory fiber wool.

[0010] Furthermore, the thickness of the refractory fiber wool is greater than the depth of the second space, and the sealing member compresses the refractory fiber wool in the second space.

[0011] Furthermore, the surface of the refractory fiber cotton is flush with the outlet end, and a resisting body is provided on the closing member, and a portion of the resisting body extends into the second space to elastically resist the refractory fiber cotton.

[0012] Furthermore, the fixing member includes a connecting body connected to the outlet end and a holding body extending from the connecting body toward and away from the slag outlet, and the closing member is slidably connected to the fixing member in a vertical plane to close or open the slag outlet.

[0013] Furthermore, the closing member includes a closing door and a connecting member arranged on the closing door, and the connecting member is elastically connected to the holding body so that the abutting body elastically abuts against the refractory fiber wool.

[0014] Furthermore, the connecting member includes a connecting block partially located inside the closed door and an elastic member connected between the connecting block and the closed door.

[0015] Furthermore, the refractory insulation brick is provided with a handle.

[0016] The beneficial effects of the present invention are as follows: the present application arranges the first seal and the second seal in sequence in the slag outlet, and seals the outlet end of the slag outlet by a closing member, so as to hold and fix the first seal and the second seal in the slag outlet, and utilizes the heat insulation performance of the first seal and the second seal to isolate the high temperature in the furnace, thereby improving the thermal insulation effect; at the same time, the triple sealing effect of the first seal, the second seal and the closing member prevents hot air or residue from escaping through the slag outlet when hot air circulation is carried out in the furnace; in addition, the connection method of the closing member and the fixing member in a sliding connection makes it easy to open the slag outlet and clean up the waste slag.

[0017] The above description is only an overview of the technical solution of the utility model. In order to more clearly understand the technical means of the utility model and implement it according to the contents of the specification, the following is a detailed description of the preferred embodiments of the utility model in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic cross-sectional structural diagram of a sealing structure of a slag outlet of a mesh-belt tempering furnace shown in one embodiment of the present application.

[0019] Figure 2 for Figure 1 Enlarged schematic diagram of part A in the middle. DETAILED DESCRIPTION

[0020] The following is a further detailed description of the specific implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0021] In the description of the present invention, it is necessary to understand that the terms "center", "longitudinal", "lateral", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0022] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0023] In the present utility model, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to the specific circumstances. In addition, in the present utility model, unless otherwise clearly specified and limited, the first feature "on" or "under" the second feature can be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium.

[0024] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0025] Please refer to Figure 1 to Figure 2A sealing structure for a slag outlet of a mesh belt tempering furnace is shown in one embodiment of the present application. The sealing structure includes a slag outlet, a heat insulation seal and a closure 40.

[0026] The slag outlet includes a first space connected to the inside of the furnace 10 and a second space connected to the outside of the furnace 10, and the cross-sectional area of ​​the second space is larger than the cross-sectional area of ​​the first space, and a fixing member 11 is arranged at the outlet end of the second space. The projection of the first space in the axial direction of the slag outlet falls within the projection of the second space in the axial direction of the slag outlet.

[0027] The heat-insulating seal comprises a first seal arranged in the first space and a second seal arranged in the second space. Since the cross-sectional area of ​​the second space is larger than the cross-sectional area of ​​the first space, and the projection of the first space in the axial direction of the slag outlet falls within the projection of the second space in the axial direction of the slag outlet, the first seal can completely seal the first space, and hot air and residue escape from the gap between the first seal and the first space, thereby maintaining the heat-insulating effect.

[0028] The closing member 40 is slidably connected with the fixing member 11 in a vertical plane to block or open the slag outlet, and the first sealing member and the second sealing member are respectively held in the first space and the second space by blocking the slag outlet. In this way, the second sealing member blocks the end of the first space, and the closing member 40 blocks the outlet end of the slag outlet, achieving a secondary blocking effect, improving the heat preservation and heat insulation effect, and at the same time, the closing member 40 is slidably connected with the fixing member 11 in a vertical plane to block or open the slag outlet, reducing the difficulty of opening or closing the slag outlet.

[0029] In this embodiment, the first sealing member is a refractory heat-insulating brick 20, and the second sealing member is a refractory fiber wool 30. The refractory heat-insulating brick 20 and the refractory fiber wool 30 form a double-layer refractory heat-insulating layer, which improves the heat preservation and heat insulation effect. At the same time, when the closing member 40 blocks the slag outlet, the second sealing member can be further compressed, thereby improving the blocking effect of the first space.

[0030] In one embodiment, the thickness of the refractory fiber wool 30 is greater than the depth of the second space, and the closure member 40 compresses the refractory fiber wool 30 into the second space. Due to the compressible property of the refractory fiber wool 30, by making the thickness of the refractory fiber wool 30 greater than the depth of the second space, when the closure member 40 blocks the outlet end of the slag outlet, the refractory fiber wool 30 can be compressed into the second space, resulting in a reduction in the porosity of the refractory fiber wool 30 and a shortened heat conduction path, thereby further improving the thermal insulation performance.

[0031] In this embodiment, the surface of the refractory fiber cotton 30 is flush with the outlet end, and a resisting body 41 is provided on the closing member 40, and a portion of the resisting body 41 extends into the second space to elastically resist the refractory fiber cotton 30. By partially extending the resisting body 41 into the second space, the refractory fiber cotton 30 is compressed, and the end of the slag outlet is blocked, thereby improving the heat insulation effect.

[0032] In this embodiment, the fixing member 11 includes a connecting body 111 connected to the outlet end and a holding body 112 extending from the connecting body 111 toward the slag outlet. The closing member 40 is slidably connected with the fixing member 11 in a vertical plane to close or open the slag outlet. Two fixing members 11 are provided, and are distributed on both sides of the slag outlet in the vertical direction in the vertical plane. The closing member 40 is partially located between the holding body 112 and the outer wall of the furnace 10. The closing member 40 is slidably connected with the holding body 112 of the fixing member 11 from top to bottom in the vertical direction. The slag outlet is opened or closed by sliding the closing member 40 in the vertical direction, which simplifies the operation of opening or closing the slag outlet.

[0033] In this embodiment, the closing member 40 includes a closing door and a connecting member disposed on the closing door, and the connecting member is elastically connected to the clamping body 112 so that the abutting body 41 elastically abuts against the refractory fiber wool 30. Specifically, the connecting member is located between the clamping body 112 and the outer wall of the furnace 10, and is elastically connected to the clamping body 112, so that the connecting member can approach or move away from the clamping body 112 along the axial direction of the slag outlet under the action of an external force, so that the abutting body 41 located on the closing door can extend into or withdraw from the slag outlet to compress the refractory fiber wool 30 or withdraw from the slag outlet so as to facilitate the movement of the closing door to open the slag outlet.

[0034] In this embodiment, the connecting member includes a connecting block 42 partially located in the closed door and an elastic member 44 connected between the connecting block 42 and the closed door. The closed door is provided with a convex mounting groove 43, and the connecting block 42 is partially located in the convex mounting groove 43, and the convex mounting groove 43 is adapted in shape so that the elastic member 44 holds the connecting block 42 in the mounting groove 43, and the connection cannot be completely separated from the convex mounting groove 43. The elastic member 44 is a spring and is always in a compressed state. At this time, the distance between the end of the connecting block 42 outside the convex mounting groove 43 and the closed door is less than the thickness of the clamping body 112. Therefore, in order to facilitate the sliding connection between the clamping body 112 and the closed member 40, the end of the connecting block 42 is provided with an inclined surface, so that the clamping body 112 can enter the sliding space formed between the end of the connecting block 42 outside the convex mounting groove 43 and the closed door.

[0035] In this embodiment, a handle is provided on the refractory insulation brick 20 , so as to facilitate the placement or removal of the refractory insulation brick 20 .

[0036] The present application arranges a first seal and a second seal in sequence in the slag outlet, and seals the outlet end of the slag outlet with a closure member to hold and fix the first seal and the second seal in the slag outlet, and utilizes the heat insulation performance of the first seal and the second seal to isolate the high temperature in the furnace, thereby improving the thermal insulation effect. At the same time, the triple sealing effect of the first seal, the second seal and the closure member prevents hot air or residue from escaping through the slag outlet when hot air circulation is carried out in the furnace. In addition, the connection method of the closure member and the fixing member in a sliding connection makes it easy to open the slag outlet and clean up the waste slag.

[0037] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0038] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A sealing structure for a slag outlet of a mesh belt tempering furnace, characterized in that: The sealing structure comprises: A slag outlet, the slag outlet comprising a first space connected to the interior of the furnace and a second space connected to the exterior of the furnace, wherein the cross-sectional area of ​​the second space is larger than the cross-sectional area of ​​the first space, and a fixing member is arranged at the outlet end of the second space; a heat-insulating seal, comprising a first seal disposed in the first space and a second seal disposed in the second space; The closing member is slidably connected with the fixing member in a vertical plane to block or open the slag outlet, and blocks the slag outlet to hold the first sealing member and the second sealing member in the first space and the second space respectively.

2. The sealing structure of the slag outlet of the mesh belt tempering furnace according to claim 1, characterized in that: The first sealing member is a fire-resistant heat-insulating brick, and the second sealing member is a fire-resistant fiber wool.

3. The sealing structure of the slag outlet of the mesh belt tempering furnace according to claim 2, characterized in that: The thickness of the fire-resistant fiber wool is greater than the depth of the second space, and the sealing member compresses the fire-resistant fiber wool in the second space.

4. The sealing structure of the slag outlet of the mesh belt tempering furnace according to claim 2, characterized in that: The surface of the refractory fiber cotton is flush with the outlet end, and a resisting body is arranged on the closing member, and a portion of the resisting body extends into the second space to elastically resist the refractory fiber cotton.

5. The sealing structure of the slag outlet of the mesh belt tempering furnace according to claim 4, characterized in that: The fixing member includes a connecting body connected to the outlet end and a holding body extending from the connecting body toward and away from the slag outlet. The closing member is slidably connected to the fixing member in a vertical plane to close or open the slag outlet.

6. The sealing structure of the slag outlet of the mesh belt tempering furnace according to claim 5, characterized in that: The closing member comprises a closing door and a connecting member arranged on the closing door, wherein the connecting member is elastically connected to the holding body so that the abutting body elastically abuts against the fire-resistant fiber wool.

7. The sealing structure of the slag outlet of the mesh belt tempering furnace according to claim 6, characterized in that: The connecting member includes a connecting block partially located inside the closed door and an elastic member connected between the connecting block and the closed door.

8. The sealing structure of the slag outlet of the mesh belt tempering furnace according to claim 2, characterized in that: The refractory insulation brick is provided with a handle.

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