Graphite electrode baking tunnel kiln car body fixing device

Abstract

The utility model relates to the field of graphite electrode production discloses a kind of graphite electrode baking tunnel kiln car body fixing device, including kiln car chassis, the top of kiln car chassis is fixedly connected with support plate, below is equipped with support plate, the edge of support plate is fixedly connected with the installation of sealing ring, the top of support plate four corners is fixedly connected with fixed cylinder, kiln car chassis bottom is fixedly connected with the limiting rod of insertion in fixed cylinder inside, lifting assembly for driving kiln car chassis lifting is equipped in the top of support plate, the drive assembly for driving kiln car chassis movement is equipped below support plate.The utility model first moves kiln car chassis to tunnel kiln below, then lifts kiln car chassis to realize the connection and sealing between tunnel kiln, can reduce the abrasion of sealing ring, improve its service life.

Description

Technical Field

[0001] This utility model relates to the field of graphite electrode production, specifically a graphite electrode calcination tunnel kiln car fixing device. Background Technology

[0002] Graphite calcination process refers to the process of heat-treating graphite at high temperature to change its internal structure. The graphite is placed in a specially designed heating furnace under the protection of filler material for high-temperature heat treatment, which carbonizes the coal tar pitch in the green body. The calcined graphite has high mechanical strength, low resistivity, and good thermal and chemical stability.

[0003] The production of graphite electrodes requires calcination in a tunnel kiln. A tunnel kiln is a furnace similar to a tunnel, constructed of refractory, insulation, and building materials and containing transport vehicles such as kiln cars. It is a modern continuous firing thermal equipment, widely used in the metallurgical and carbon industries for heat treatment of products. In the calcination process of graphite in a tunnel kiln, graphite is placed on a kiln car and pushed into the calcination kiln, where it undergoes preheating, high-temperature treatment, and cooling to process the material.

[0004] The surface of the kiln car is covered with refractory material. After the kiln car enters the kiln, a heat treatment space is formed between the surface of the kiln car and the kiln wall. Since the kiln car is a movable device, there is a gap between the kiln car and the kiln body. In order to ensure the airtightness of the furnace during heat treatment, traditional kiln cars generally have sealing plates installed between the sides of the kiln car and the kiln wall to solve the above problem. However, since the kiln car body needs to move in and out of the tunnel kiln, the wear between the sealing plates and the kiln wall is large and frequent replacement is required, so improvement is needed. Utility Model Content

[0005] The technical problem to be solved by this utility model is to overcome the above-mentioned technical defects and provide a fixing device for the car body of a graphite electrode calcining tunnel kiln.

[0006] To solve the above problems, the technical solution of this utility model is as follows: a graphite electrode calcining tunnel kiln car fixing device, including a kiln car base frame, a support plate fixedly connected to the top of the kiln car base frame, a support plate provided below, a sealing ring fixedly connected to the edge of the support plate, a fixing cylinder fixedly connected to the four corners of the top of the support plate, a limiting rod inserted into the fixing cylinder fixedly connected to the bottom of the kiln car base frame, a lifting assembly for driving the kiln car base frame to rise and fall on the top of the support plate, and a driving assembly for driving the kiln car base frame to move below the support plate.

[0007] Furthermore, positioning blocks are symmetrically fixed to both sides of the kiln car frame, and positioning grooves adapted to the positioning blocks are opened at the bottom of the tunnel kiln.

[0008] Furthermore, the lifting assembly includes a fixed block fixedly installed at the bottom of the kiln car frame and a movable block movably installed on the top of the support plate. A hydraulic rod is installed on the top of the support plate, and the output end of the hydraulic rod is connected to the movable block. Both the fixed block and the movable block are right-angled trapezoidal structures, and their inclined surfaces abut against each other.

[0009] Furthermore, a groove is provided on the top surface of the support plate, and a slider is slidably connected in the groove. The top of the slider is fixed to the movable block, and the hydraulic rod is mounted on the support plate through a positioning plate.

[0010] Furthermore, the inclined surface of the fixed block is fixedly connected to a limiting strip, and the inclined surface of the movable block is provided with a limiting groove that matches the limiting strip.

[0011] Furthermore, the driving assembly includes a fixed frame with guide rails symmetrically arranged on both sides of the fixed frame and a driving block slidably connected inside. The bottom of the support plate is fixedly connected with multiple slide seats that are slidably connected to the guide rails. A lead screw is rotatably installed inside the fixed frame, and a motor for driving the lead screw to rotate is installed at one end of the lead screw. The top of the driving block is fixedly connected to the support plate, and the lead screw passes through and is threadedly connected to the driving block.

[0012] The advantages of this utility model compared with the existing technology are as follows: This utility model first moves the kiln car base frame to the bottom of the tunnel kiln, and then raises the kiln car base frame to achieve connection and sealing with the tunnel kiln, which can reduce the wear of the sealing ring and improve its service life. Attached Figure Description

[0013] Figure 1 This is the installation diagram of the kiln car base frame of this utility model.

[0014] Figure 2 This is a connection structure diagram of the kiln car chassis of this utility model.

[0015] Figure 3 This is a cross-sectional view of the kiln car base frame of this utility model.

[0016] Figure 4 This is a connection structure diagram of the support plate of this utility model.

[0017] Figure 5 This is a structural diagram showing the connection between the fixed block and the movable block of this utility model.

[0018] As shown in the figure: 1. Kiln car base frame; 2. Support plate; 3. Support plate; 4. Sealing ring; 5. Fixed cylinder; 6. Limiting rod; 7. Positioning block; 8. Fixed block; 9. Movable block; 10. Hydraulic rod; 11. Slider; 12. Positioning plate; 13. Limiting strip; 14. Fixed frame; 15. Guide rail; 16. Drive block; 17. Slide seat; 18. Lead screw; 19. Motor. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0020] like Figures 1 to 5 As shown, a graphite electrode calcining tunnel kiln car fixing device includes a kiln car base frame 1, a support plate 2 fixedly connected to the top of the kiln car base frame 1, a support plate 3 provided below, a sealing ring 4 fixedly connected to the edge of the support plate 2, positioning blocks 7 symmetrically fixedly connected to both sides of the kiln car base frame 1, and a positioning groove adapted to the positioning block 7 is opened at the bottom of the tunnel kiln.

[0021] The tunnel kiln is a conventional kiln body currently on the market. The sealing ring 4 can achieve the sealing between the kiln car base frame 1 and the tunnel kiln; the positioning block 7 and the positioning groove can achieve the fixing between the kiln car base frame 1 and the tunnel kiln.

[0022] Fixed cylinders 5 are fixedly connected to the four corners of the top of the support plate 3. Limiting rods 6 inserted inside the fixed cylinders 5 are fixedly connected to the bottom of the kiln car frame 1. The top of the support plate 3 is provided with a lifting assembly for driving the kiln car frame 1 to rise and fall. The lifting assembly includes a fixed block 8 fixedly installed at the bottom of the kiln car frame 1 and a movable block 9 movably installed at the top of the support plate 3. A hydraulic rod 10 is installed at the top of the support plate 3. The output end of the hydraulic rod 10 is connected to the movable block 9. The fixed block 8 and the movable block 9 are both right-angled trapezoidal structures, and their inclined surfaces abut against each other. A sliding groove is opened on the top surface of the support plate 3. A slider 11 is slidably connected in the sliding groove. The top of the slider 11 is fixedly connected to the movable block 9. The hydraulic rod 10 is installed on the support plate 3 through a positioning plate 12. A limiting strip 13 is fixedly connected to the inclined surface of the fixed block 8. A limiting groove adapted to the limiting strip 13 is opened on the inclined surface of the movable block 9.

[0023] The extension of the hydraulic rod 10 causes the movable block 9 to push the fixed block 8 and make it rise along the inclined surface of the movable block 9, thereby raising the position of the kiln car base frame 1 and moving the kiln car base frame 1 to the inside of the tunnel kiln.

[0024] Below the support plate 3 is a drive assembly for moving the kiln car base frame 1. The drive assembly includes a fixed frame 14, with guide rails 15 symmetrically arranged on both sides of the fixed frame 14. A drive block 16 is slidably connected inside the fixed frame 14. Multiple slide seats 17 that are slidably connected to the guide rails 15 are fixedly connected to the bottom of the support plate 3. A lead screw 18 is rotatably installed inside the fixed frame 14, and a motor 19 for driving the lead screw 18 to rotate is installed at one end of the fixed frame 14. The top of the drive block 16 is fixedly connected to the support plate 3, and the lead screw 18 passes through and is threadedly connected to the drive block 16.

[0025] The motor 19 drives the lead screw 18 to rotate, which causes the drive block 16 to move the support plate 3, thus enabling the kiln car base frame 1 to move.

[0026] In practical use, motor 19 drives lead screw 18 to rotate, causing support plate 3 to move kiln car base frame 1 along guide rail 15 to directly below the tunnel kiln. Hydraulic rod 10 extends, causing movable block 9 to push fixed block 8 upward, so that kiln car base frame 1 moves to the inside of the tunnel kiln. Sealing ring 4 can achieve sealing between kiln car base frame 1 and tunnel kiln; positioning block 7 and positioning groove can achieve fixing between kiln car base frame 1 and tunnel kiln. By first moving kiln car base frame 1 to below the tunnel kiln and then raising kiln car base frame 1 to achieve connection and sealing with tunnel kiln, wear of sealing ring 4 can be reduced and its service life extended.

[0027] The parts not disclosed in this utility model are all prior art, and their specific structures and working principles will not be described in detail.

[0028] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0029] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

[0030] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A fixing device for a tunnel kiln car body in graphite electrode calcination, comprising a kiln car base frame (1), characterized in that: The kiln car frame (1) is fixedly connected to the top of a support plate (2) and a support plate (3) is provided below it. A sealing ring (4) is fixedly connected to the edge of the support plate (2). A fixing cylinder (5) is fixedly connected to the four corners of the top of the support plate (3). A limiting rod (6) inserted into the fixing cylinder (5) is fixedly connected to the bottom of the kiln car frame (1). A lifting assembly for driving the kiln car frame (1) to rise and fall is provided on the top of the support plate (3). A driving assembly for driving the kiln car frame (1) to move is provided below the support plate (3).

2. The graphite electrode calcination tunnel kiln car fixing device according to claim 1, characterized in that: The kiln car base frame (1) is symmetrically fixed with positioning blocks (7) on both sides, and the bottom of the tunnel kiln is provided with positioning grooves that are compatible with the positioning blocks (7).

3. The graphite electrode calcination tunnel kiln car fixing device according to claim 1, characterized in that: The lifting assembly includes a fixed block (8) fixedly installed at the bottom of the kiln car frame (1) and a movable block (9) movably installed on the top of the support plate (3). A hydraulic rod (10) is installed on the top of the support plate (3). The output end of the hydraulic rod (10) is connected to the movable block (9). Both the fixed block (8) and the movable block (9) are right-angled trapezoidal structures, and their inclined surfaces abut against each other.

4. The graphite electrode calcination tunnel kiln car fixing device according to claim 3, characterized in that: The top surface of the support plate (3) is provided with a sliding groove, and a slider (11) is slidably connected in the sliding groove. The top of the slider (11) is fixed to the movable block (9), and the hydraulic rod (10) is installed on the support plate (3) through the positioning plate (12).

5. The graphite electrode calcination tunnel kiln car fixing device according to claim 4, characterized in that: The inclined surface of the fixed block (8) is fixedly connected to the limiting strip (13), and the inclined surface of the movable block (9) is provided with a limiting groove that is compatible with the limiting strip (13).

6. The graphite electrode calcination tunnel kiln car fixing device according to claim 1, characterized in that: The drive assembly includes a fixed frame (14), with guide rails (15) symmetrically arranged on both sides of the fixed frame (14), and a drive block (16) slidably connected inside. The bottom of the support plate (3) is fixed with a plurality of slide seats (17) slidably connected to the guide rails (15). A lead screw (18) is rotatably installed inside the fixed frame (14), and a motor (19) for driving the lead screw (18) to rotate is installed at one end. The top of the drive block (16) is fixed to the support plate (3), and the lead screw (18) passes through and is threadedly connected to the drive block (16).

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