Kiln door sealing device for industrial furnace

Abstract

The utility model relates to the technical field of industrial furnaces, in particular to a kiln door sealing device for an industrial furnace. The kiln comprises a kiln body and a sealing door, the sealing door is assembled on one side of the kiln body, a kiln opening is formed in the position, corresponding to the sealing door, of the inner side of the kiln body, the kiln opening is in interference fit with the sealing door, a switching mechanism is assembled between the kiln body and the sealing door, and the switching mechanism is used for aligning and covering the sealing door and the kiln opening. An auxiliary mechanism is further assembled between the kiln body and the sealing door, the auxiliary mechanism is used for limiting the sealing door, and the switching mechanism comprises a carrying side plate, a positioning pin shaft, a force supporting arm and a bending arm. Through the structural design of the switching mechanism and the auxiliary mechanism, the sealing door can cover the furnace mouth conveniently, the covering and sealing effect of the sealing door on the furnace mouth is improved, meanwhile, auxiliary limiting can be conducted on the sealing door, and the covering effect of the sealing door on the furnace mouth is more stable.

Description

Technical Field

[0001] The utility model relates to the technical field of industrial furnaces, and in particular to a furnace door sealing device for an industrial furnace. Background Art

[0002] Industrial furnaces refer to thermal equipment that utilizes the heat generated by fuel combustion or electric energy conversion in industrial production to smelt, melt, roast (calcine), heat, dry distill, gasify, etc. materials or workpieces. It is widely used in industries such as steel, coking, nonferrous metals, building materials, petrochemicals, chemicals, and machinery manufacturing, and plays an important supporting role in industrial development. Among them, the sealing door is a common furnace sealing device, which is mainly used to prevent the heat inside the furnace from being dissipated to the external environment in large quantities and to ensure the relative sealing of the gas environment inside the furnace;

[0003] For example, an industrial furnace with good energy-saving and emission-reduction effects as disclosed (announcement) number CN215491131 U is provided with moving rods on both sides of the front end face of the main body of the industrial furnace, and two moving rods are provided, and the two moving rods are integrally built with the main body of the industrial furnace, and energy recovery mechanisms of the two moving rods, an energy output mechanism is provided above the main body of the industrial furnace, the energy recovery mechanism is fixedly connected to the energy output mechanism by connecting a delivery pipeline, a heat-resistant bottom plate is provided on the lower end face of the energy recovery mechanism, and the heat-resistant bottom plate is fixedly connected to the energy recovery mechanism, an absorption port is provided inside the heat-resistant bottom plate, and a plurality of absorption ports are provided, and a second shielding plate groove is provided on the front end face of the energy recovery mechanism;

[0004] In summary, it can be seen that the following technical problems exist in the prior art: During the use of the above-mentioned and other typical prior arts, the furnace sealing door and the kiln are rotatably connected through a single-axis pin, which makes the sealing door and the furnace mouth have a certain inclination angle, and the covering effect on the furnace mouth is not ideal. For this reason, we propose a kiln door sealing device for industrial furnaces. Utility Model Content

[0005] The purpose of the utility model is to provide a kiln door sealing device for an industrial kiln to solve the problems raised in the above background technology.

[0006] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0007] A kiln door sealing device for an industrial furnace comprises a kiln body and a sealing door, wherein the sealing door is provided on one side of the kiln body, a furnace opening is provided on the inner side of the kiln body at a position corresponding to the sealing door, the furnace opening and the sealing door are interference fit, a transfer mechanism is provided between the kiln body and the sealing door, the transfer mechanism is used to align and cover the sealing door with the furnace opening, and an auxiliary mechanism is also provided between the kiln body and the sealing door, the auxiliary mechanism is used to limit the sealing door.

[0008] Preferably, the transfer mechanism includes a mounting side plate, a positioning pin shaft, a support arm and a bending arm. Two mounting side plates are fixed on one side of the kiln body. The tops of the mounting side plates are rotatably connected to the positioning pin shafts. The tops of the positioning pin shafts are fixed with support arms. One ends of the support arms are rotatably connected to the bending arms through pins. One ends of the bending arms are fixed to the sealing doors.

[0009] Preferably, the middle portion of the bending arm is rotatably connected to an auxiliary linkage rod via a pin, and one end of the auxiliary linkage rod is rotatably connected to a mounting side plate via a pin.

[0010] Preferably, a side of the sealing door close to the kiln body is in close contact with the inner side of the furnace opening.

[0011] Preferably, the auxiliary mechanism includes a U-shaped mounting frame, a rotating rod, a center gear, a force tooth plate, a guide block, a trapezoidal clamp and a positioning slot block. A U-shaped mounting frame is fixed to the side of the sealing door away from the kiln body, and one side of the U-shaped mounting frame is rotatably connected to a rotating rod. One end of the rotating rod passes through the inner side of the U-shaped mounting frame and a center gear is fixed thereto. Both sides of the center gear are meshedly connected with force tooth plates, one side of the force tooth plates is fixed with a guide block, one end of the guide block is assembled and connected to the sealing door, the ends of the two force tooth plates away from each other are fixed with trapezoidal clamps, and one side of the kiln body is fixed with two positioning slot blocks corresponding to the positions of the trapezoidal clamps, and the inner side of the positioning slot block is transitionally matched with the trapezoidal clamp.

[0012] Preferably, one end of the guide block close to the sealing door is slidably connected to a limiting track, and the limiting track is fixed to the sealing door.

[0013] Preferably, a return spring is fixed to one side of the guide block, and one end of the return spring is fixed to the sealing door.

[0014] It can be seen without a doubt that the above-mentioned technical solution of the present application can definitely solve the technical problem to be solved by the present application.

[0015] At the same time, through the above technical solutions, the utility model has at least the following beneficial effects:

[0016] The utility model makes it easy for the device to cover the sealing door on the furnace opening through the structural design of the transfer mechanism and the auxiliary mechanism, thereby improving the covering and sealing effect of the sealing door on the furnace opening, and can also perform auxiliary limiting on the sealing door, so that the covering effect of the sealing door on the furnace opening is more stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 It is a schematic diagram of the structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the connection structure of the kiln body and the sealing door of the utility model;

[0020] Figure 3 This is a schematic diagram of the connection structure between the kiln body and the furnace mouth of the utility model;

[0021] Figure 4 The utility model is a schematic diagram of the connection structure of the guide block and the limit rail.

[0022] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0023] In the figure: 1. kiln body; 2. sealing door; 3. furnace mouth; 4. mounting side plate; 5. positioning pin shaft; 6. supporting arm; 7. bending arm; 8. auxiliary linkage rod; 9. U-shaped mounting frame; 10. rotating rod; 11. center gear; 12. force tooth plate; 13. guide block; 14. limiting track; 15. return spring; 16. trapezoidal clamp; 17. positioning slot block. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0025] Example 1

[0026] Reference Figure 1-3 A kiln door sealing device for an industrial furnace comprises a kiln body 1 and a sealing door 2. The sealing door 2 is installed on one side of the kiln body 1. A furnace opening 3 is opened on the inner side of the kiln body 1 and at a position corresponding to the sealing door 2. The furnace opening 3 and the sealing door 2 have an interference fit. A transfer mechanism is installed between the kiln body 1 and the sealing door 2. The transfer mechanism is used to align and cover the sealing door 2 with the furnace opening 3. An auxiliary mechanism is also installed between the kiln body 1 and the sealing door 2. The auxiliary mechanism is used to limit the sealing door 2.

[0027] The transfer mechanism includes a mounting side plate 4, a positioning pin shaft 5, a supporting arm 6 and a bending arm 7. Two mounting side plates 4 are fixed on one side of the kiln body 1. The tops of the mounting side plates 4 are rotatably connected with the positioning pin shafts 5. The tops of the positioning pin shafts 5 are fixed with supporting arms 6. One ends of the supporting arms 6 are rotatably connected with the bending arms 7 through pins. One ends of the bending arms 7 are fixed to the sealing door 2. A bending portion is provided in the middle of the bending arms 7.

[0028] The middle part of the bending arm 7 is rotatably connected to the auxiliary linkage rod 8 through a pin, and one end of the auxiliary linkage rod 8 is rotatably connected to the mounting side plate 4 through a pin. Through the setting of the auxiliary linkage rod 8, the movement of the bending arm 7 can be limited and guided.

[0029] The side of the sealing door 2 close to the kiln body 1 is in close contact with the inner side of the furnace opening 3 , and an inclined surface is provided on one side of the sealing door 2 to facilitate the close contact with the furnace opening 3 .

[0030] Example 2

[0031] Embodiment 1 is further optimized, specifically, as Figure 4 As shown, the auxiliary mechanism includes a U-shaped mounting frame 9, a rotating rod 10, a central gear 11, a force tooth plate 12, a guide block 13, a trapezoidal clamp 16 and a positioning groove block 17. A U-shaped mounting frame 9 is fixed on the side of the sealing door 2 away from the kiln furnace body 1, and a rotating rod 10 is rotatably connected to one side of the U-shaped mounting frame 9. One end of the rotating rod 10 passes through the inner side of the U-shaped mounting frame 9 and a central gear 11 is fixed. Both sides of the central gear 11 are meshed and connected with the force tooth plate 12, and one side of the force tooth plate 12 is fixed with a guide block 13. One end of the guide block 13 is assembled and connected with the sealing door 2. The two force tooth plates 12 are away from each other. A trapezoidal clamp 16 is fixed at both ends, and two positioning groove blocks 17 corresponding to the positions of the trapezoidal clamp 16 are fixed on one side of the kiln body 1. The inner side of the positioning groove block 17 is transitionally matched with the trapezoidal clamp 16. A handwheel is fixed at one end of the rotating rod 10, and an inclined surface is provided on one side of the trapezoidal clamp 16. Through the limiting guidance of the inclined surface by the inner side of the positioning groove block 17, the tension generated by the reset spring 15 enables the trapezoidal clamp 16 to have a force to move toward the kiln body 1 to a certain extent, thereby enabling the trapezoidal clamp 16 to drive the sealing door 2 to fit closely with the furnace mouth 3, thereby increasing the tightness of the contact between the edge of the sealing door 2 and the furnace mouth 3.

[0032] One end of the guide block 13 close to the sealing door 2 is slidably connected to the limiting track 14, and the limiting track 14 is fixed to the sealing door 2. Through the setting of the limiting track 14, the guide block 13 can be provided with a moving guide function.

[0033] A return spring 15 is fixed on one side of the guide block 13, and one end of the return spring 15 is fixed to the sealing door 2. When the guide block 13 moves, the force-applying toothed plate 12 drives the guide block 13 to stretch the return spring 15 to produce deformation, thereby facilitating the adjustment of the position of the trapezoidal clamp 16.

[0034] From the above, we can know that:

[0035] The utility model aims at the technical problem that in the prior art, the sealing door of the furnace is connected to the furnace by a uniaxial pin, so that there is a certain inclination between the sealing door and the furnace opening, and the covering effect of the furnace opening is not ideal; the technical solutions of the above embodiments are adopted. At the same time, the implementation process of the above technical solutions is:

[0036] When in use, when it is necessary to close the sealing door 2 on the furnace opening 3, first turn the hand wheel so that the rotating rod 10 drives the central gear 11 to mesh with the two force-applying toothed plates 12 to move toward each other, and then the force-applying toothed plates 12 drive the guide block 13 to stretch the return spring 15 to produce deformation, and pull the hand wheel at one end of the rotating rod 10 so that the sealing door 2 pulls the supporting arm 6 through the bending arm 7 to rotate. Because the bending arm 7 is rotatably connected to the supporting arm 6, the supporting arm 6 is fixed to the positioning pin shaft 5, and the positioning pin shaft 5 is rotatably connected to the mounting side plate 4, the auxiliary linkage rod 8 is rotatably connected to the bending arm 7, and the auxiliary linkage rod 8 is rotatably connected to the mounting side plate 4, so that the sealing door 2 and the furnace opening 3 can be centered and covered under the limiting guidance of the auxiliary linkage rod 8, so that the edge of the sealing door 2 is in contact with the inner side of the furnace opening 3, and at this time, the trapezoidal clamping head 16 corresponds to the position of the positioning groove block 17;

[0037] After that, the hand wheel is released, and the tension generated by the reset spring 15 pulls the guide block 13 to reset along the inner side of the limiting track 14 until the force-applying toothed plate 12 drives the trapezoidal clamping head 16 to insert into the inner side of the corresponding positioning groove block 17, thereby limiting the sealing door 2.

[0038] Through the above configuration, the present application can certainly solve the above technical problems and achieve the following technical effects:

[0039] The utility model uses the structural design of the transfer mechanism and the auxiliary mechanism to make it easy for the device to cover the sealing door 2 on the furnace opening 3, thereby improving the sealing effect of the sealing door 2 on the furnace opening 3, and at the same time can assist in limiting the sealing door 2, so that the covering effect of the sealing door 2 on the furnace opening 3 is more stable.

[0040] In the present invention, 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, an electrical connection, or communication with each other; 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, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0041] Obviously, the embodiments described above are only some embodiments of the utility model, rather than all embodiments. The preferred embodiments of the utility model are given in the accompanying drawings, but they do not limit the patent scope of the utility model. The utility model can be implemented in many different forms. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the utility model more thorough and comprehensive. Although the utility model is described in detail with reference to the aforementioned embodiments, for those skilled in the art, it is still possible to modify the technical solutions recorded in the aforementioned specific implementation methods, or to replace some of the technical features therein with equivalents. Any equivalent structure made using the contents of the utility model specification and the accompanying drawings, directly or indirectly used in other related technical fields, is also within the scope of patent protection of the utility model.

Claims

1. A kiln door sealing device for an industrial furnace, characterized in that: The invention comprises a kiln body (1) and a sealing door (2), wherein the sealing door (2) is arranged on one side of the kiln body (1), a furnace opening (3) is provided on the inner side of the kiln body (1) and at a position corresponding to the sealing door (2), the furnace opening (3) and the sealing door (2) are interference fit, a switching mechanism is arranged between the kiln body (1) and the sealing door (2), the switching mechanism is used to align and cover the sealing door (2) and the furnace opening (3), and an auxiliary mechanism is also arranged between the kiln body (1) and the sealing door (2), the auxiliary mechanism is used to limit the sealing door (2).

2. The kiln door sealing device for an industrial furnace according to claim 1, characterized in that: The transfer mechanism comprises a mounting side plate (4), a positioning pin shaft (5), a support arm (6) and a bending arm (7); two mounting side plates (4) are fixed on one side of the kiln body (1); the tops of the mounting side plates (4) are rotatably connected to the positioning pin shafts (5); the tops of the positioning pin shafts (5) are fixed to the support arms (6); one end of the support arms (6) is rotatably connected to the bending arms (7) via pins; one end of the bending arms (7) is fixed to the sealing door (2).

3. The kiln door sealing device for an industrial furnace according to claim 2, characterized in that: The middle part of the bending arm (7) is rotatably connected to an auxiliary linkage rod (8) via a pin, and one end of the auxiliary linkage rod (8) is rotatably connected to the mounting side plate (4) via a pin.

4. The kiln door sealing device for an industrial furnace according to claim 1, characterized in that: The side of the sealing door (2) close to the kiln body (1) is in close contact with the inner side of the furnace opening (3).

5. The kiln door sealing device for an industrial furnace according to claim 1, characterized in that: The auxiliary mechanism comprises a U-shaped mounting frame (9), a rotating rod (10), a central gear (11), a force-applying tooth plate (12), a guide block (13), a trapezoidal clamp (16) and a positioning groove block (17); a U-shaped mounting frame (9) is fixed on a side of the sealing door (2) away from the kiln furnace body (1); a rotating rod (10) is rotatably connected to one side of the U-shaped mounting frame (9); one end of the rotating rod (10) passes through the inner side of the U-shaped mounting frame (9) and is fixed with a central gear (11); the central gear ( 11) are meshedly connected with force tooth plates (12) on both sides, and a guide block (13) is fixed on one side of the force tooth plates (12), and one end of the guide block (13) is assembled and connected with the sealing door (2), and a trapezoidal clamp (16) is fixed on the ends of the two force tooth plates (12) away from each other, and two positioning groove blocks (17) corresponding to the positions of the trapezoidal clamp (16) are fixed on one side of the kiln body (1), and the inner side of the positioning groove block (17) is transitionally matched with the trapezoidal clamp (16).

6. The kiln door sealing device for an industrial furnace according to claim 5, characterized in that: One end of the guide block (13) close to the sealing door (2) is slidably connected to a limiting track (14), and the limiting track (14) is fixed to the sealing door (2).

7. The kiln door sealing device for an industrial furnace according to claim 5, characterized in that: A return spring (15) is fixed on one side of the guide block (13), and one end of the return spring (15) is fixed to the sealing door (2).

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