Sealing door for heating furnace

Abstract

The utility model relates to the field of heating furnace sealing devices, in particular to a sealing door for a heating furnace, which comprises a sealing door main body, a lifting mechanism for driving the sealing door main body to lift, a first sealing edge arranged at the top of the sealing door main body, and a second sealing edge arranged at the bottom of a furnace body, the lifting mechanism comprises a door support and a lifting driving assembly arranged at the top of the door support, the door support is arranged at a feeding port of the furnace body and fixedly connected with the furnace body, the sealing door body is slidably connected with the door support, a clamping block is arranged on the first sealing edge, a first clamping groove is formed in the top of the furnace body, and the clamping block is connected with the first clamping groove in a clamped mode. A second clamping groove is formed in the second sealing edge, and the bottom of the sealing door body is connected with the second clamping groove in a clamped mode. According to the sealing door, the sealing effect of the sealing door body is improved, heat loss is reduced, and therefore the heating enhancing effect on a roller is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of heating furnace sealing device, in particular to a sealing door for heating furnace. BACKGROUND

[0002] The repair process of the roll mainly includes turning cleaning roll surface, heating enhancement, repair welding and cooling.

[0003] In the process of heating enhancement, the roll needs to be placed in the heating furnace for heating, so as to improve the hardness of the roll. The sealing performance of the door of the existing heating furnace is poor, so that the heat in the heating furnace is lost from the gap between the furnace body and the door, thereby reducing the effect of heating enhancement of the roll.

[0004] For the related technology in the above, the inventor believes that the sealing performance of the door of the existing heating furnace is poor, thereby reducing the enhancement effect of the roll. CONTENT OF THE INVENTION

[0005] In order to solve the above technical problems, the present application provides a sealing door for heating furnace.

[0006] The present application provides a sealing door for heating furnace, which adopts the following technical scheme:

[0007] A sealing door for heating furnace, comprising a sealing door body, a lifting mechanism for driving the sealing door body to lift, a first sealing edge arranged at the top of the sealing door body, and a second sealing edge arranged at the bottom of the furnace body, wherein the furnace body is provided with a feeding port, the lifting mechanism comprises a door support and a lifting driving assembly arranged at the top of the door support, the door support is arranged at the feeding port of the furnace body, and the door support is fixedly connected with the furnace body, the sealing door body is slidingly connected with the door support, the first sealing edge is provided with a clamping block, the top of the furnace body is provided with a first clamping groove, the clamping block is clamped with the first clamping groove, and the second sealing edge is provided with a second clamping groove, and the bottom of the sealing door body is clamped with the second clamping groove.

[0008] By adopting the above technical scheme, when the lifting driving assembly drives the sealing door body to close the feeding port, the sealing door body is clamped with the second clamping groove, and the clamping block is clamped with the first clamping groove, so as to block the gap between the sealing door body and the furnace body on the upper and lower sides, and the door support blocks the gap between the sealing door body and the furnace body on the left and right sides, thereby improving the sealing effect of the sealing door body, reducing the heat loss, and further improving the heating enhancement effect of the roll.

[0009] Preferably, the side wall of the clamping block is provided with a first guide inclined surface, the inner wall of the first clamping groove is provided with a second guide inclined surface, and the first guide inclined surface and the second guide inclined surface are arranged in parallel.

[0010] By adopting the above technical scheme, the first guide inclined surface and the second guide inclined surface facilitate the clamping block to be clamped with the first clamping groove, thereby reducing the abrasion of the clamping block, improving the connection stability and connection sealing performance of the first sealing edge and the furnace body, and further improving the sealing effect of the first sealing edge.

[0011] Preferably, the first sealing edge is internally provided with a first heat insulation cavity, and the second sealing edge is internally provided with a second heat insulation cavity.

[0012] By adopting the above technical scheme, the first heat insulation cavity and the second heat insulation cavity are respectively arranged to improve the sealing effect of the first sealing edge and the second sealing edge, thereby reducing heat loss and further improving the heating enhancement effect on the roller.

[0013] Preferably, a plurality of first reinforcing rods are arranged in the first heat insulation cavity, two ends of each of the first reinforcing rods are connected with the first sealing edge, a plurality of second reinforcing rods are arranged in the second heat insulation cavity, and each of the second reinforcing rods is connected with the second sealing edge.

[0014] By adopting the above technical scheme, the first reinforcing rods improve the structural strength of the first sealing edge, and the second reinforcing rods improve the structural strength of the second sealing edge, thereby reducing the deformation of the first sealing edge and the second sealing edge, and further improving the sealing effect.

[0015] Preferably, the first heat insulation cavity and the second heat insulation cavity are both filled with high-temperature-resistant heat insulation materials.

[0016] Preferably, the high-temperature-resistant heat insulation materials are one or more of ceramic fibers, silicate fibers, silicon carbide fibers, and aerogels.

[0017] By adopting the above technical scheme, the heat loss of the first sealing edge and the second sealing edge due to contact with external air is reduced, thereby improving the heating enhancement effect on the roller.

[0018] Preferably, the lifting driving assembly comprises a cable fixedly connected with the top of the sealing door body, a winding drum rotatably arranged on the top of the door support, and a motor for driving the winding drum to rotate, the cable is wound on the winding drum, and the motor is fixedly arranged on the door support.

[0019] By adopting the above technical scheme, the motor drives the winding drum to rotate, and the winding drum drives the sealing door body to lift or lower through the cable.

[0020] Preferably, a limiting sliding groove is arranged on the door support, limiting sliding blocks are arranged on both sides of the sealing door body, and the limiting sliding blocks are slidably connected with the limiting sliding groove.

[0021] By adopting the technical scheme, the door support is slidably connected with the sealing door body through the limiting sliding block and the limiting sliding groove, so that the stability of the sealing door body during lifting is improved.

[0022] To sum up, the application has the following beneficial technical effects:

[0023] 1. The first sealing edge and the second sealing edge block the gap between the sealing door body and the furnace body, thereby reducing heat loss and improving the heating enhancement effect on the roller.

[0024] 2. The first sealing edge and the second sealing edge are filled with high-temperature-resistant heat insulation material, thereby improving the heat insulation sealing effect of the high-temperature-resistant heat insulation material, further reducing heat loss, and improving the heating enhancement effect on the roller. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 is a structural schematic diagram of the sealing door for a heating furnace provided by the embodiment of the application;

[0026] Figure 2 is a partial cross-sectional structural schematic diagram of the sealing door for a heating furnace provided by the embodiment of the application;

[0027] Figure 3 is a partial cross-sectional structural schematic diagram of the sealing door body and the door support provided by the embodiment of the application.

[0028] Reference Signs List: 1, sealing door body; 11, limiting sliding block; 2, lifting mechanism; 21, door support; 211, limiting sliding groove; 22, lifting driving assembly; 221, inhaul cable; 222, winding drum; 223, motor; 3, first sealing edge; 31, clamping block; 32, first guide inclined surface; 33, first heat insulation cavity; 34, first reinforcing rod; 4, furnace body; 41, feed inlet; 42, first clamping groove; 43, second guide inclined surface; 5, second sealing edge; 51, second clamping groove; 52, second heat insulation cavity; 53, second reinforcing rod; 6, high-temperature-resistant heat insulation material. DETAILED DESCRIPTION

[0029] The following will be described in detail below with reference to the accompanying drawings Figures 1-3 The application will be further described in detail.

[0030] The embodiment of the application discloses a sealing door for a heating furnace.

[0031] Reference is made to Figure 1 , Figure 2 and Figure 3The utility model provides a sealing door for heating furnace, including sealing door main body 1, be used for driving sealing door main body 1 to go up and down the lifting mechanism 2, the first sealing edge 3 of fixed setting in sealing door main body 1 top, the second sealing edge 5 of fixed setting in furnace body 4 bottom, the furnace body 4 is set up with the feed inlet 41. Lifting mechanism 2 includes door support 21 and sets up the lifting drive assembly 22 of door support 21 top. Door support 21 sets up at the feed inlet 41 of furnace body 4, and door support 21 is fixedly connected with furnace body 4. Sealing door main body 1 is slidably connected with door support 21.

[0032] Lifting drive assembly 22 includes the inhaul cable 221 of fixed connection with sealing door main body 1 top, the winding drum 222 of rotation setting in door support 21 top and the motor 223 for driving winding drum 222 rotation, inhaul cable 221 is around setting on winding drum 222, and motor 223 is fixedly set up on door support 21.

[0033] Door support 21 is set up with the limiting sliding slot 211, and the both sides of sealing door main body 1 are provided with limiting sliding block 11, and limiting sliding block 11 is slidably connected with limiting sliding slot 211.

[0034] The first sealing edge 3 is fixedly provided with the clamping block 31, the top of the furnace body 4 is provided with a first clamping groove 42, the clamping block 31 is clamped with the first clamping groove 42, the second sealing edge 5 is provided with a second clamping groove 51, and the bottom of the sealing door main body 1 is clamped with the second clamping groove 51.

[0035] The sidewall of the clamping block 31 is provided with a first guide inclined surface 32, the inner wall of the first clamping groove 42 is provided with a second guide inclined surface 43, and the first guide inclined surface 32 is parallelly arranged with the second guide inclined surface 43.

[0036] The first sealing edge 3 is internally provided with a first heat insulation cavity 33, and the second sealing edge 5 is internally provided with a second heat insulation cavity 52.

[0037] A plurality of first reinforcing rods 34 are arranged in the first heat insulation cavity 33, both ends of the first reinforcing rods 34 are fixedly connected with the first sealing edge 3, a plurality of second reinforcing rods 53 are arranged in the second heat insulation cavity 52, and both ends of the second reinforcing rods 53 are fixedly connected with the second sealing edge 5. The first heat insulation cavity 33 and the second heat insulation cavity 52 are filled with high-temperature-resistant heat insulation material 6. The high-temperature-resistant heat insulation material 6 is one or more of ceramic fiber, silicate fiber, silicon carbide fiber, and aerogel.

[0038] The implementation principle of the sealing door for the heating furnace according to the embodiment of the present application is that the door support 21 blocks the side gap between the sealing door body 1 and the furnace body 4, thereby reducing the heat loss of the side of the furnace body 4. The first sealing edge 3 is clamped with the furnace body 4 through the clamping block 31, thereby blocking the gap between the top of the sealing door body 1 and the furnace body 4, and reducing the heat loss of the top of the furnace body 4. The second sealing edge 5 is clamped with the sealing door body 1, thereby blocking the gap between the bottom of the sealing door body 1 and the furnace body 4, and reducing the heat loss of the bottom of the furnace body 4. Moreover, the first sealing edge 3 and the second sealing edge 5 are filled with high-temperature-resistant heat insulation material 6, thereby further reducing the heat loss and improving the heating enhancement effect on the roller.

[0039] The above are preferred embodiments of the present application, and do not limit the protection scope of the present application. Therefore, equivalent changes made on the basis of the structure, shape, and principle of the present application should be covered within the protection scope of the present application.

Claims

1. A sealing door for a heating furnace, characterized by: The utility model relates to a sealing door body (1), be used to drive sealing door body (1) to carry out the lifting mechanism (2) of lifting, set up in the first sealing edge (3) of sealing door body (1) top, set up in the second sealing edge (5) of furnace body (4) bottom, the furnace body (4) is opened with feed inlet (41), the lifting mechanism (2) includes door support (21) and sets up in the lifting drive assembly (22) of door support (21) top, door support (21) sets up at feed inlet (41) of furnace body (4), and door support (21) is fixedly connected with furnace body (4), sealing door body (1) is slidably connected with door support (21), the first sealing edge (3) is provided with the clamping block (31), the top of furnace body (4) is provided with first clamping groove (42), the clamping block (31) is clamped with first clamping groove (42), the second sealing edge (5) is opened with second clamping groove (51), and the bottom of sealing door body (1) is clamped with second clamping groove (51).

2. A sealing door for a heating furnace according to claim 1, characterized in that: The sidewall of the clamping block (31) is provided with a first guide inclined surface (32), and the inner wall of the first clamping groove (42) is provided with a second guide inclined surface (43). The first guide inclined surface (32) and the second guide inclined surface (43) are arranged in parallel.

3. The sealing door for a heating furnace according to claim 1, characterized in that: The first sealing edge (3) is internally provided with a first heat insulation cavity (33), and the second sealing edge (5) is internally provided with a second heat insulation cavity (52).

4. A sealing door for a heating furnace according to claim 3, characterized in that: A plurality of first reinforcing rods (34) are arranged in the first heat insulation cavity (33), and two ends of the first reinforcing rod (34) are connected with the first sealing edge (3) respectively. A plurality of second reinforcing rods (53) are arranged in the second heat insulation cavity (52), and the second reinforcing rod (53) is connected with the second sealing edge (5) respectively.

5. A sealing door for a heating furnace according to claim 4, characterized in that: The first heat insulation cavity (33) and the second heat insulation cavity (52) are filled with high-temperature-resistant heat insulation materials (6).

6. A sealing door for a heating furnace according to claim 5, characterized in that: The high-temperature-resistant heat insulation materials (6) are one or more of ceramic fibers, silicate fibers, silicon carbide fibers, and aerogels.

7. The sealing door for a heating furnace according to claim 1, characterized in that: The lifting drive assembly (22) comprises a cable (221) fixedly connected with the top of the sealing door body (1), a winding drum (222) rotatably arranged at the top of the door support (21), and a motor (223) for driving the winding drum (222) to rotate. The cable (221) is wound on the winding drum (222), and the motor (223) is fixedly arranged on the door support (21).

8. A sealing door for a heating furnace according to claim 7, characterized in that: The door support (21) is provided with a limiting sliding groove (211), and the sealing door body (1) is provided with a limiting sliding block (11) on both sides. The limiting sliding block (11) is slidably connected with the limiting sliding groove (211).

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