Automatic discharging device for crucible of graphitization furnace

Abstract

The utility model discloses a graphitization furnace crucible automatic discharging device which comprises a walking cart system, a moving trolley system is arranged on the walking cart system, and a material suction system, a crucible loosening system and a crucible lifting system are arranged on the moving trolley system. The material suction system, the crucible loosening system and the crucible lifting system are arranged on the moving trolley system, the material suction system can suck filler among crucibles, the crucibles can be loosened by moving the crucibles back and forth after being covered by a loosening device cage on the crucible loosening system, the crucibles can be conveniently taken out subsequently, and the crucible loosening device is simple in structure and convenient to use. An L-shaped tray and a tray rotating device are arranged on the crucible lifting system, after the crucible is clamped, the L-shaped tray is rotated to support the crucible, and it is guaranteed that the crucible is discharged out of the furnace safely. According to the device disclosed by the utility model, automatic discharge of the crucible in the production process of the crucible graphitization furnace is realized, manual assistance is not needed, the safety problem is avoided, and the production efficiency, the automation level and the production stability are improved.

Description

Technical Field

[0001] The utility model relates to a graphitization furnace crucible unloading device, in particular to an automatic graphitization furnace crucible unloading device. Background Art

[0002] The graphitization process is a key step in negative electrode production, and crucible and box-type graphitization furnaces are commonly used for this process. Due to the high furnace temperature, the presence of resistor material between the crucibles, and the tendency of the material to adhere to the crucible's periphery, manual assistance is often required to loosen the crucibles before they are hoisted out of the furnace using a crucible fixture on an overhead crane. This process is characterized by high operating temperatures and high dust levels, posing certain production safety risks and requiring significant labor.

[0003] Therefore, it is necessary to develop an automatic crucible unloading device for a graphitization furnace to solve the safety problem of the crucible unloading process, while also improving production efficiency and automation level. Summary of the Invention

[0004] The purpose of the utility model is to provide an automatic crucible unloading device for a graphitization furnace, which is used to solve the safety problem of the crucible unloading process and also improve the production efficiency and automation level.

[0005] The technical solution of the utility model is as follows: an automatic crucible unloading device for a graphitizing furnace comprises a traveling trolley system, a movable trolley system is provided on the traveling trolley system, a material suction system, a crucible loosening system and a crucible lifting system are provided on the movable trolley system; the material suction system comprises a filling material buffer bin and a negative pressure material suction device arranged on the movable trolley system, the two being connected by a pipeline, a filling material telescopic material suction pipe is provided at the bottom of the negative pressure material suction device, the filling material telescopic material suction pipe comprises a fixed pipe section and a movable pipe section, wherein the fixed pipe section is connected to the negative pressure material suction device and a material suction pipe hydraulic cylinder is installed thereon, and the output end of the material suction pipe hydraulic cylinder is fixedly connected to the movable pipe section.

[0006] In the aforementioned automatic crucible unloading device for a graphitizing furnace, the crucible loosening system includes a conduit installed at the bottom of the mobile trolley system, a loosening device guide rod is movably installed in the conduit, the bottom head end of the loosening device guide rod is connected to a loosening device cage, a loosening device hydraulic cylinder is fixed on the conduit, and the head end of the loosening device hydraulic cylinder is connected to the loosening device guide rod.

[0007] In the aforementioned automatic crucible unloading device for a graphitization furnace, the crucible lifting system includes a fixed tube installed at the bottom of the mobile trolley system, a crucible lifting guide rod movably connected to the fixed tube, a crucible clamp connected to the head end of the crucible lifting guide rod, a crucible lifting hydraulic cylinder installed on the fixed tube, the output end of the crucible lifting hydraulic cylinder is fixedly connected to the crucible lifting guide rod, a horizontal mounting plate is provided at the bottom head end of the crucible lifting guide rod, an L-shaped tray is movably mounted on the other end of the horizontal mounting plate, and the L-shaped tray is fixedly connected to the tray rotating device on the horizontal mounting plate.

[0008] In the aforementioned automatic crucible unloading device for a graphitization furnace, the tray rotating device is a motor.

[0009] The beneficial effects of the utility model are as follows: compared with the prior art, the utility model is provided with a material suction system, a crucible loosening system and a crucible lifting system on the mobile trolley system. The material suction system can be used to remove the filling material between the crucibles. The crucible can be loosened by covering the crucible with a loosening device cage on the crucible loosening system and then moving it back and forth, which is convenient for subsequent removal of the crucible. The crucible lifting system is provided with an L-shaped tray and a tray rotating device. After the crucible is clamped, the L-shaped tray is rotated to support the crucible to ensure that the crucible is safely taken out of the furnace.

[0010] The device of the utility model realizes the automatic taking out of the crucible in the production process of the crucible graphitization furnace, does not require manual assistance, avoids safety problems, and improves production efficiency, automation level and production stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a structural diagram of the utility model;

[0012] Figure 2 This is a structural diagram of the L-shaped tray of the present invention after being rotated 90°;

[0013] Figure 3 This is the plan layout of the crucible during the process of taking the crucible graphitization furnace out of the furnace.

[0014] Figure markings: 1-traveling trolley system, 2-moving trolley system, 3-suction system, 301-filling material buffer bin, 302-negative pressure suction device, 303-filling material telescopic suction pipe, 304-suction pipe hydraulic cylinder, 4-crucible loosening system, 401-loosening device guide rod, 402-loosening device cage, 403-loosening device hydraulic cylinder, 5-crucible lifting system, 501-crucible lifting guide rod, 502-crucible clamp, 503-crucible lifting hydraulic cylinder, 504-horizontal mounting plate, 505-L-type pallet, 506-pallet rotation device. DETAILED DESCRIPTION

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments, but they are not intended to limit the present invention.

[0016] An embodiment of the present utility model: An automatic crucible unloading device for a graphitizing furnace comprises a traveling trolley system 1, a movable trolley system 2 is provided on the traveling trolley system 1, and a material suction system 3, a crucible loosening system 4 and a crucible lifting system 5 are provided on the movable trolley system 2.

[0017] After the graphitization process is completed, the insulation material suction crane in the graphitization workshop is used to suck out the filling material on the upper layer of the furnace chamber to expose the crucible, and then the ordinary crane is used to lift out the first row of crucibles. After the first row of crucibles are lifted out, the outer side of the second row of crucibles is basically not filled with filling material. The suction system 3 is used to Figure 3 As shown, part of the filling material is sucked out at point a, creating a gap inside the crucible. Then, the crucible loosening system 4 activates the loosening action at point a. After the second row of crucibles is loosened to a certain extent through repeated actions of the material suction system 3 and the crucible loosening system 4, the crucibles are lifted to a certain height by the crucible lifting system 5 before being removed from the furnace. This automatic crucible unloading device for graphitization furnaces is then used to remove all subsequent crucibles from the furnace.

[0018] The suction system 3 includes a filling material buffer bin 301 and a negative pressure suction device 302 arranged on the mobile trolley system 2, which are connected by a pipeline. A filling material telescopic suction pipe 303 is provided at the bottom of the negative pressure suction device 302. The filling material telescopic suction pipe 303 includes a fixed pipe section and a movable pipe section, wherein the fixed pipe section is connected to the negative pressure suction device 302 and a suction pipe hydraulic cylinder 304 is installed thereon, and the output end of the suction pipe hydraulic cylinder 304 is fixedly connected to the movable pipe section.

[0019] The crucible loosening system 4 includes a conduit installed at the bottom of the mobile trolley system 2, in which a loosening device guide rod 401 is movably installed, and the bottom head end of the loosening device guide rod 401 is connected to a loosening device cage 402, and a loosening device hydraulic cylinder 403 is fixed on the conduit, and the head end of the loosening device hydraulic cylinder 403 is connected to the loosening device guide rod 401.

[0020] The crucible lifting system 5 includes a fixed tube installed at the bottom of the mobile trolley system 2, and a crucible lifting guide rod 501 is movably connected to the fixed tube. The head end of the crucible lifting guide rod 501 is connected to a crucible clamp 502. A crucible lifting hydraulic cylinder 503 is installed on the fixed tube, and the output end of the crucible lifting hydraulic cylinder 503 is fixedly connected to the crucible lifting guide rod 501. A horizontal mounting plate 504 is provided at the bottom head end of the crucible lifting guide rod 501, and an L-shaped tray 505 is movably mounted on the other end of the horizontal mounting plate 504. The L-shaped tray 505 is fixedly connected to the tray rotating device 506 on the horizontal mounting plate 504.

[0021] The tray rotating device 506 is a motor, the motor end is fixed on the side wall of the horizontal mounting plate 504, the output end is rotationally connected with the L-shaped tray 505, the L-shaped tray 505 is rotated 90° through the motor rotation, thereby supporting the bottom of the crucible.

[0022] The graphite furnace crucible automatic discharge device is realized by the walking trolley system 1 walking in the factory building, and the moving trolley system 2 can walk along the length direction of the walking trolley system 1.

[0023] The graphite furnace crucible automatic discharge device is realized by the walking trolley system 1 walking in the factory building, and the moving trolley system 2 can walk along the length direction of the walking trolley system 1. Figure 1 and Figure 2 As shown in the accompanying drawings, the graphite furnace crucible automatic discharge device comprises:

[0024] (1) the walking trolley system 1 comprises a double-beam bridge and an end beam driving mechanism, and can run along the longitudinal track of the workshop, which is a mature technology and will not be described in detail.

[0025] (2) the moving trolley system 2, the material suction system 3, the crucible loosening system 4 and the crucible lifting system 5 are integrated on the moving trolley system 2, and the crucible discharge device can be positioned at any position in the furnace area through the walking of the trolley system.

[0026] (3) the material suction system 3 is composed of a filling material buffer bin 301, a negative pressure material suction device 302, a filling material telescopic suction pipe 303 and a suction pipe hydraulic cylinder 304.

[0027] (4) the crucible loosening system 4 is composed of a loosening device guide rod 401, a loosening device cage 402 and a loosening device hydraulic cylinder 403.

[0028] (5) the crucible lifting system 5 is composed of a guide crucible lifting guide rod 501, a crucible clamp 502, a crucible lifting hydraulic cylinder 503, a horizontal mounting plate 504, an L-shaped tray 505 and a tray rotating device 506.

[0029] (6) the electrical and control system mainly comprises an electric control cabinet, wires and cables, a bridge pipeline, a cab and a ground remote control device, and is a nerve unit for controlling the actions of the whole device.

[0030] After graphitization is completed and the crucible is cooled to a certain temperature and is ready for removal from the furnace, the insulation material suction crane in the graphitization workshop is first used to suck out the filling material on the upper layer of the furnace chamber to expose the crucible, and then an ordinary crane with a wire rope is used to lift the first row of crucibles. Then, the automatic crucible removal device of the present invention is moved to the top of the furnace chamber to be removed from the furnace, and the suction pipe hydraulic cylinder 304 of the suction system 3 is used to realize the extension and retraction of the filling material suction pipe 303, so that the filling material suction pipe 303 can reach the surface of the filling material, and the filling material is sucked into the filling material buffer bin 301 through the negative pressure suction device 302. After the filling material around the upper end of the crucible is sucked away, the mobile trolley system 2 moves laterally along the traveling trolley system 1, and moves the crucible loosening system 4 to the top of the crucible from which the filling material has just been sucked away. The loosening device hydraulic cylinder 403 extends to drive the loosening device guide rod 401 downward, and the loosening device cage 402 is moved along the direction of the guide rod to the top of the crucible. The position of the loosening device cage 402 is adjusted to align with the crucible, and the loosening device cage 402 is continued to be lowered so that the loosening device cage 402 covers the upper part of the crucible. At this time, the shaking generated by the moving trolley system 2 moving back and forth along the traveling trolley system 1 drives the crucible to move slightly, thereby loosening the crucible. After the crucible is completely loosened, the crucible lifting system 5 is moved to the top of the crucible by moving the mobile trolley system 2. At this time, the L-shaped tray 505 is in the upper open state, that is, Figure 1 The crucible lifting hydraulic cylinder 503 extends to drive the crucible lifting guide rod 501 to extend downward, and the crucible clamp 502 is lowered along the direction of the crucible lifting guide rod 501 to a suitable position for clamping the crucible. The self-locking mechanism on the crucible clamp 502 is closed to clamp the crucible. Then the crucible lifting hydraulic cylinder 503 lifts the crucible clamp 502, and the crucible is clamped by the crucible clamp 502 due to its own weight. After it is lifted a certain distance, the L-shaped tray 505 is rotated to the lower lifting state by the tray rotating device 506. Figure 2 The position shown provides secondary protection for the crucible during lifting. When the crucible is lifted to the vicinity of the designated position, the L-shaped tray 505 is rotated to the upper open state, and then the crucible is lowered to the designated position. As the crucible falls to the ground, the crucible clamp 502 gradually becomes open. At this time, the self-locking mechanism on the crucible clamp 502 is opened to keep it in the open state, so that the crucible clamp 502 can be reset as the crucible lifting system 5 rises and is successfully separated from the crucible. The automated crucible unloading device works reciprocatingly until all the crucibles are unloaded. The crucible clamp 502 in the crucible lifting system 5 can adopt a clamp structure designed by our company. This clamp structure is described in detail in the patent document CN217708564U applied for by our company, and its specific structure will not be described in detail here.

[0031] Components directly in contact with the high-temperature crucible and filling material, such as the filling material telescopic suction pipe 303, the loosening device guide rod 401 and loosening device cage 402 of the loosening crucible system 4, the crucible clamp 502 and the L-shaped tray 505, are all made of high-temperature resistant and wear-resistant materials.

[0032] During the entire automation process, the traveling trolley system 1 moves longitudinally to correspond to different rows in the crucible graphite furnace, while the mobile trolley system 2 can move horizontally along the traveling trolley system 1 to correspond to crucibles at different positions in the same row, and the setting of the hydraulic cylinder can correspond to crucibles of different depths.

Claims

1. An automatic crucible unloading device for a graphitization furnace, comprising a traveling trolley system (1), a movable trolley system (2) being provided on the traveling trolley system (1), and characterized in that: The mobile trolley system (2) is provided with a material suction system (3), a crucible loosening system (4) and a crucible lifting system (5); the material suction system (3) comprises a filling material buffer bin (301) and a negative pressure material suction device (302) provided on the mobile trolley system (2), the two being connected via a pipeline, a filling material telescopic material suction pipe (303) is provided at the bottom of the negative pressure material suction device (302), the filling material telescopic material suction pipe (303) comprises a fixed pipe section and a movable pipe section, wherein the fixed pipe section is connected to the negative pressure material suction device (302) and a material suction pipe hydraulic cylinder (304) is installed thereon, and the output end of the material suction pipe hydraulic cylinder (304) is fixedly connected to the movable pipe section.

2. The automatic crucible unloading device for a graphitization furnace according to claim 1, characterized in that: The crucible loosening system (4) comprises a conduit mounted on the bottom of the mobile trolley system (2), a loosening device guide rod (401) being movably mounted in the conduit, a bottom head end of the loosening device guide rod (401) being connected to a loosening device cage (402), a loosening device hydraulic cylinder (403) being fixed on the conduit, and a head end of the loosening device hydraulic cylinder (403) being connected to the loosening device guide rod (401).

3. The automatic crucible unloading device for a graphitization furnace according to claim 1, characterized in that: The crucible lifting system (5) comprises a fixed tube mounted on the bottom of the mobile trolley system (2), a crucible lifting guide rod (501) being movably connected to the fixed tube, a crucible clamp (502) being connected to the head end of the crucible lifting guide rod (501), a crucible lifting hydraulic cylinder (503) being mounted on the fixed tube, an output end of the crucible lifting hydraulic cylinder (503) being fixedly connected to the crucible lifting guide rod (501), a horizontal mounting plate (504) being provided at the bottom head end of the crucible lifting guide rod (501), an L-shaped tray (505) being movably mounted on the other end of the horizontal mounting plate (504), and the L-shaped tray (505) being fixedly connected to a tray rotating device (506) on the horizontal mounting plate (504).

4. The automatic crucible unloading device for a graphitization furnace according to claim 3, characterized in that: The tray rotating device (506) is a motor.

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