Isostatic pressing graphite pressurizing roasting furnace

Abstract

The invention relates to the field of graphite roasting, in particular to an isostatic pressing graphite pressurizing roasting furnace which comprises a rectangular box and a partition plate, the partition plate divides the area in the rectangular box into two cavities, pushing plates are arranged on the inner walls of the cavities in a sliding mode, and through units are arranged in the partition plate. Connecting grooves are formed in the rectangular box, the connecting grooves are communicated with the corresponding cavities respectively, two through grooves corresponding to the two cavities respectively are symmetrically formed in one side of the rectangular box, a rectangular frame is arranged on one side of the rectangular box, a cross beam is installed in the middle of the rectangular frame, and sliding plates are arranged on the two sides of the cross beam and the inner side wall of the rectangular frame in a sliding mode; through the design that the two cavities are arranged and the roasting time is separated and staggered, when the cavity on one side is used for roasting, the cavity on the other side is vacant to be in a normal-temperature environment, and the influence of continuous high temperature on the device is avoided.

Description

Technical Field

[0001] The present invention relates to the field of graphite roasting, and particularly to an isostatic graphite pressure roasting furnace. Background Art

[0002] Due to its excellent electrical conductivity, high temperature resistance, and chemical stability, graphite materials are widely used in fields such as metallurgy, nuclear energy, and aerospace; during the production of graphite products, the formed green body needs to be subjected to high-temperature roasting treatment to eliminate internal stress, improve density, and mechanical strength; among them, the pressure roasting process can effectively promote the bonding between graphite particles and reduce porosity by applying uniform static pressure in a high-temperature environment, thereby significantly improving the physical properties and service life of the products.

[0003] Currently, the pressure roasting furnaces commonly used in industry mostly rely on inert gases (such as nitrogen, argon) as protective media to prevent graphite from oxidizing at high temperatures; however, the existing equipment has significant defects: after completing a single roasting cycle, the furnace body needs to be opened for discharging and reloading operations; this process causes a sudden drop in the furnace pressure, and a large amount of inert gas escapes to the outside. At the same time, the high-temperature environment is forced to interrupt due to heat loss; after the next batch of materials is loaded, it is necessary to refill the inert gas, restore the pressure, and raise the temperature again, resulting in a sharp increase in energy consumption, an extended production cycle, and a rising operating cost. In addition, frequent temperature and pressure fluctuations are likely to cause uneven internal structures of graphite products, affecting the quality consistency between batches, and the repeated replenishment of inert gases also increases the raw material cost and operation complexity.

[0004] Although attempts have been made in the prior art to alleviate the above problems by improving the sealing structure or shortening the refueling time, continuous production still cannot be achieved, and there is a contradiction between ensuring airtightness and operating efficiency.

[0005] In the prior art, a patent with the publication number CN116428866A discloses a pressure roasting furnace for producing high-purity graphite, including a conveying table, a rail transfer cart, a bottom wall support block, a heat insulation layer, and an externally heat-insulating shell that can be lifted and docked, etc. Sealed pressure roasting is achieved through a clamped sealing ring and a spiral docking. However, although this technology has improved some of the original problems, there are still aspects that need to be further optimized to better meet the actual detection requirements.

[0006] 1. Insufficient air pressure stability during the feeding process: When changing materials, the externally heat-insulating shell of this device needs to be lifted and separated from the bottom wall support block, resulting in the destruction of the sealed environment inside the furnace. Although a clamped sealing ring design is adopted, during the material loading stage before docking, the inside of the furnace body is still in a temporarily open state, causing leakage of inert gas and a drop in pressure. Subsequently, it is necessary to refill the gas and restore the pressure again, which not only increases energy consumption but also prolongs the production cycle, making it difficult to achieve continuous and efficient production.

[0007] 2. Uneven heat absorption due to static placement of materials: The green graphite billets are fixed on the transverse support plates of the heat-dispersing columns. Although direct contact is avoided, the positions of the materials are fixed during the roasting process, and only rely on the heat conduction of the heat-dispersing holes. This static layout easily causes uneven heat absorption in different regions of the materials (such as the center and the edge). Especially during high-density loading, the heat penetration efficiency decreases, resulting in differences in local graphite coking values, affecting the purity of the finished product and batch consistency.

[0008] Therefore, under the viewpoints stated above, there is still room for improvement in the existing graphite roasting. Summary of the Invention

[0009] To solve the above problems, the present invention provides an isostatic graphite pressure roasting furnace, which includes a rectangular box and a partition plate. The partition plate divides the area inside the rectangular box into two chambers. A push plate slides on the inner wall of the chamber, and a through unit is arranged inside the partition plate.

[0010] Four connecting grooves are also opened on the rectangular box, and two connecting grooves are in a group. The two groups of connecting grooves are respectively communicated with the corresponding chambers.

[0011] Two through grooves corresponding to the two chambers are symmetrically opened on one side of the rectangular box. A rectangular frame is arranged on one side of the rectangular box. A cross beam is installed in the middle of the rectangular frame. Sliding plates are slidably arranged on both sides of the cross beam and the inner side walls of the rectangular frame. A bearing unit is installed on the sliding plates.

[0012] Preferably, the through unit includes an insertion slot opened in the middle of the partition plate. Sliding slots are also opened on both sides of the partition plate on both sides of the insertion slot. Through holes respectively communicating with one side chamber and the inner wall of the insertion slot are opened on the inner walls on both sides of the sliding slot. A sliding frame slides in the sliding slot, and several blocking plates corresponding to the through holes are arranged on the sliding frame.

[0013] Preferably, an insertion frame is inserted into the insertion slot, and a filter screen is installed in the insertion frame.

[0014] Preferably, a driving component for driving the sliding frame to move is arranged on the partition plate. The driving component includes a driving screw rod rotatably penetrating through the rectangular frame, the push plate and the partition plate, and the driving screw rod is in threaded connection with the two push plates. A passive plate is arranged on the sliding frame, and resisting grooves are symmetrically opened on the passive plate.

[0015] Preferably, annular grooves respectively corresponding to the two sliding slots are symmetrically opened on the outer side of the driving screw rod. Several resisting plates are arranged on the inner diameter of the annular groove, and resisting grooves are also opened on the outer side of the resisting plates. The resisting grooves on one side are in contact with the resisting grooves on the passive plate.

[0016] A return spring is also arranged between the sliding frame and the sliding slot.

[0017] Preferably, the bearing unit includes insertion shafts inserted through both sides of the sliding plate. A placement frame is arranged between the insertion shafts. A placement plate is installed in the placement frame. Several placement grooves are formed in the placement plate, and several clamping members are arranged in the placement grooves to clamp the graphite plate.

[0018] Preferably, a buffer assembly is arranged on the pushing plate. The buffer assembly includes a structure groove formed on the side of the pushing plate facing the partition plate. Several elastic springs are arranged on the structure groove, and a buffer plate is jointly arranged on one side of the elastic springs.

[0019] Preferably, a rotating assembly for driving the rotating shaft to rotate is arranged on the buffer plate. The rotating assembly includes several rotating shafts that are rotatably inserted through the placement plate and communicate with the placement grooves in a corresponding column. The clamping members are installed on the rotating shafts, and the corresponding rotating shafts are connected by a belt drive.

[0020] Preferably, a rotating gear is sleeved on the outer side of the rotating shaft, and a rectangular groove is formed in the buffer plate.

[0021] Preferably, an L-shaped rack is slidably inserted through the rectangular groove, and the teeth on the inner side of the L-shaped rack correspond to the rotating gear.

[0022] In summary, the present application includes at least one of the following beneficial technical effects: 1. Through the design of setting two chambers with staggered baking times, when one chamber is baking, the other chamber is vacant and at room temperature, avoiding the influence of continuous high temperature on the device. Effectively reducing the probability of aging problems such as material property decline and structural deformation of the device due to long-term high-temperature working conditions, greatly extending the overall service life of the equipment, reducing the equipment maintenance and replacement costs, and improving the stability and reliability of the equipment operation.

[0023] 2. Through the ingenious cooperation of the through unit and the driving component, when one chamber finishes baking, the high-temperature inert gas inside can be pushed to the other chamber through the through unit for recycling. Before the inert gas is used repeatedly until it has no more use value, its auxiliary baking effect is fully exerted, reducing the usage amount of the inert gas, lowering the production cost; at the same time, reducing gas emissions and achieving the efficient utilization of resources.

[0024] III. Through the coordinated work of multiple components such as the bearing unit, buffer assembly, rotating assembly, and moving assembly, the bearing unit realizes the stable clamping and support of the graphite plate; the buffer assembly effectively addresses the problems brought about by air pressure changes during the gas pushing process, ensuring the normal movement of the pushing plate; the rotating assembly and the moving assembly enable the graphite plate to come into full contact with hot air and inert gas at different heights and with different flow directions, ensuring that the roasting reaction proceeds evenly and fully. This all-round design significantly improves the roasting quality of isostatic graphite, increases the product qualification rate, optimizes the production process, and improves the overall production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The present invention will be further described below in conjunction with the drawings and embodiments.

[0026] Figure 1 is a schematic structural diagram of the main body of the present invention.

[0027] Figure 2 is a cross-sectional view of the main body of the present invention.

[0028] Figure 3 is a schematic structural diagram of the insertion groove and sliding groove of the present invention.

[0029] Figure 4 is a schematic structural diagram of the sealing plate and filter screen of the present invention.

[0030] Figure 5 is a schematic structural diagram of the driving lead screw of the present invention.

[0031] Figure 6 is the present invention Figure 5 partial enlarged view of part A in.

[0032] Figure 7 is a schematic structural diagram of the bearing unit of the present invention.

[0033] Figure 8 is a cross-sectional view of the buffer assembly and rotating assembly of the present invention.

[0034] Figure 9 is the present invention Figure 8 partial enlarged view of part B in.

[0035] Figure 10 is a cross-sectional view of the moving assembly of the present invention.

[0036] Figure 11 is the present invention Figure 10 partial enlarged view of part C in.

[0037] In the figure, 1 is a rectangular box; 10 is a partition board; 11 is a chamber; 12 is a push board; 13 is a connecting groove; 14 is a through groove; 15 is a rectangular frame; 16 is a cross beam; 17 is a sliding plate; 2 is a through unit; 20 is an insertion slot; 21 is a sliding groove; 22 is a through hole; 23 is a sliding frame; 24 is a sealing plate; 25 is a filter screen; 3 is a driving assembly; 30 is a driving screw rod; 31 is a passive plate; 32 is an annular groove; 33 is a contact plate; 4 is a bearing unit; 40 is an insertion shaft; 41 is a placement frame; 42 is a placement plate; 43 is a placement groove; 44 is a clamping member; 5 is a buffer assembly; 50 is a structural groove; 51 is an elastic spring; 52 is a buffer plate; 6 is a rotating assembly; 60 is a rotating shaft; 61 is a rotating gear; 62 is an L-shaped rack; 7 is a moving assembly; 70 is a receiving groove; 71 is a rotating screw rod; 72 is a through slot; 73 is a rectangular cavity; 74 is a rectangular block; 75 is a spring rod. Detailed implementation mode

[0038] The following is combined with Figures 1 to 11 to describe the embodiments of the present invention in detail.

[0039] The embodiment of the present application discloses an isostatic graphite pressure baking furnace. It should be noted that the present application is applied in the baking process of isostatic graphite, which can provide a sealed and staggered baking environment for graphite, effectively avoid the continuous high-temperature aging of the device, and at the same time realize the recycling of high-temperature inert gas, reducing production costs; further, the present application can also make graphite fully contact with hot air and inert gas through the coordinated operation of various components, ensuring sufficient baking reaction and improving the baking quality and production efficiency of graphite.

[0040] Embodiment 1: Refer to Figure 1 and Figure 2 As shown, it includes a rectangular box 1, a partition board 10, a chamber 11, a push board 12, a through unit 2, a connecting groove 13, a through groove 14, a rectangular frame 15, a cross beam 16, a sliding plate 17 and a bearing unit 4. The partition board 10 divides the area inside the rectangular box 1 into two chambers 11. A push board 12 is also slidably arranged on the inner wall of the chamber 11, and a through unit 2 is arranged inside the partition board 10, that is, an existing device for heating and baking a graphite plate (hereinafter referred to as graphite) is installed in each chamber 11. The chamber 11 is used to provide a sealed baking environment for the internal graphite. The baking times of the two chambers 11 are separated and staggered, that is, when one chamber 11 is baking, the other chamber 11 is vacant, so that its internal annular static is at room temperature to prevent the device from aging due to continuous high-temperature environment.

[0041] Four connecting grooves 13 are also formed in the rectangular box 1, and two connecting grooves 13 form a group. The two groups of connecting grooves 13 communicate with the corresponding chambers 11 respectively. That is, the connecting grooves 13 on one side are respectively used to connect with the air inlet end and the air outlet end of an external air pumping device. Since inert gas needs to be added for auxiliary roasting when graphite is roasted, the air inlet end of the external air pumping device fills inert gas into the corresponding chamber 11 through the connecting groove 13 on one side to assist in roasting the graphite. Also, when the roasting in one side chamber 11 is completed, the high-temperature inert gas inside can be recycled. Therefore, the push plate 12 can be pushed in the chamber 11 to push the high-temperature inert gas in the corresponding chamber 11 into the chamber 11 on the other side for recycling. After the inert gas has been reciprocated several times and has no more utilization value, the external air pumping device extracts the gas in the corresponding chamber 11 through the air outlet end and the corresponding connecting groove 13.

[0042] Two through grooves 14 corresponding to the two chambers 11 are symmetrically formed on one side of the rectangular box 1. A rectangular frame 15 is arranged on one side of the rectangular box 1. A cross beam 16 is installed in the middle of the rectangular frame 15. Sliding plates 17 are slidably arranged on the inner side walls of the rectangular frame 15 on both sides of the cross beam 16, and the sliding plates 17 are arranged in a staggered manner. A bearing unit 4 is installed on the sliding plates 17. When the sliding plates 17 are driven by an external force, the bearing unit 4 can be driven to move under the limitation of the corresponding rectangular frame 15 and the cross beam 16, and the bearing unit 4 is sent into the corresponding chamber 11 through the through groove 14.

[0043] Refer to Figure 3 and Figure 4 As shown, that is, the through unit 2 for connecting the two chambers 11 together; specifically, the through unit 2 includes an insertion slot 20, a sliding slot 21, a through hole 22, a sliding frame 23, a blocking plate 24, and a filter screen 25. The insertion slot 20 is formed in the middle of the partition plate 10. The partition plate 10 is also provided with sliding slots 21 located on both sides of the insertion slot 20. Through holes 22 that communicate with the inner wall of one side chamber 11 and the inner wall of the insertion slot 20 are formed on the inner walls of both sides of the sliding slot 21. A sliding frame 23 slides in the sliding slot 21. A plurality of blocking plates 24 corresponding to the through holes 22 are arranged on the sliding frame 23. That is, the gas in one side chamber 11 can be discharged into the chamber 11 on the other side through the through hole 22, the sliding slot 21, the insertion slot 20, the sliding slot 21, and the through hole 22. However, in the initial state, the sliding frame 23 can drive the blocking plate 24 to block the corresponding through hole 22, and it can also prevent the gas in one side chamber 11 from prematurely entering the chamber 11 on the other side during roasting, resulting in a reduction in the roasting effect.

[0044] An insertion frame is inserted in the insertion groove 20, and a filter screen 25 is installed in the insertion frame. After the chamber 11 on one side is calcined, the sliding frame 23 drives the blocking plate 24 to no longer block the corresponding through hole 22. Then, the push plates 12 in the two chambers 11 are moved, and the push plate 12 on one side pushes the high-temperature gas in the chamber 11 through the through hole 22 to the chamber 11 on the other side, and the gas passes through the filter screen 25, and the filter screen 25 can screen out impurities in the gas, making the gas purer. The graphite in the chamber 11 on the other side will not be contaminated, and the filter screen 25 can be pulled out from the insertion groove 20 for replacement after long-term use. The push plate 12 in the chamber 11 on the other side can discharge the excess gas in the corresponding chamber 11 through the corresponding connecting groove 13 when moving, to prevent the air pressure from blocking its movement, and the high-temperature gas will move to the chamber 11 on the other side and be located on the side of the corresponding push plate 12 facing the partition plate 10. The above steps are repeated until the inert gas has no use value.

[0045] Reference Figure 5 and Figure 6 As shown, a driving component 3 for driving the sliding frame 23 to move is provided on the partition plate 10; specifically, the driving component 3 includes a driving screw 30, a passive plate 31, an annular groove 32 and a resistance plate 33, the driving screw 30 is rotatably arranged in the rectangular frame 15, the push plate 12 and the upper end of the partition plate 10, and the driving screw 30 is threadedly connected to the two push plates 12, that is, one side of the driving screw 30 is connected to the main shaft of the external driving motor and can be driven by it to rotate, and then the driving screw 30 can drive the push plate 12 to move in the corresponding chamber 11; a passive plate 31 is provided on the sliding frame 23, and resistance grooves are symmetrically opened on the passive plate 31.

[0046] Annular grooves 32 corresponding to the two sliding grooves 21 are symmetrically opened on the outer side of the driving screw rod 30, and several contact plates 33 are arranged on the inner diameter of the annular groove 32, and contact grooves are also opened on the outer side of the contact plate 33, and the contact groove on one side contacts the contact groove on the passive plate 31, that is, the driving screw rod 30 can drive the contact plate 33 in the annular groove 32 to rotate synchronously, and then the inclined surface on the contact plate 33 will contact the inclined surface on the passive plate 31 and indirectly drive the sliding frame 23 to move downward and drive the sealing plate 24 to no longer block the through hole 22, so that the gas in the chamber 11 on one side can enter the chamber 11 on the other side.

[0047] A return spring (not shown) is also provided between the sliding frame 23 and the sliding groove 21. When the contact plate 33 is no longer in contact with the passive plate 31, the return spring at the bottom of the sliding frame 23 will push the sliding frame 23 to slide to the initial position, and continue to block the through hole 22 through the blocking plate 24. When the screw rod 30 is driven to rotate, it can continuously drive the blocking plate 24 to stop blocking or not blocking the through hole 22 through the contact between the contact plate 33 and the passive plate 31, so that the gas in the chamber 11 on one side can intermittently enter the chamber 11 on the other side, and finally the pushing plate 12 moves to the other side of the corresponding cavity, and the blocking plate 24 continues to block the through hole 22. The above steps are repeated. After the chamber 11 on the other side is fired, the screw rod 30 is driven to rotate in the opposite direction to make the pushing plate 12 move in the opposite direction. At this time, the contact plate 33 can continue to drive the blocking plate 24 to block or not block the through hole 22 through the passive plate 31.

[0048] Reference Figure 7 As shown, the bearing unit 4 is used for clamping and supporting the graphite plate; specifically, the bearing unit 4 includes an insertion shaft 40, a placement frame 41, a placement plate 42, a placement groove 43 and a clamping member 44, the insertion shaft 40 is passed through both sides of the sliding plate 17, a placement frame 41 is arranged between the insertion shafts 40, a placement plate 42 is installed in the placement frame 41, a plurality of placement grooves 43 are opened on the placement plate 42, a plurality of clamping members 44 are arranged in the placement grooves 43 to clamp the graphite plate, the clamping member 44 is an existing device, which includes two symmetrically distributed limit frames, and two clamping plates slide together in the corresponding limit frames, and the two sides of the graphite plate can be clamped by the two symmetrically distributed clamping plates under the drive of external force, on the contrary, when the clamping plates no longer clamp the graphite, the graphite plate can be removed from the clamping member 44.

[0049] That is, the sliding plate 17 can move the placement frame 41 through the through groove 14 to the corresponding cavity by inserting the shaft 40, and the placement frame 41 can synchronously drive the placement plate 42 to move into the chamber 11, and the clamping member 44 clamps the graphite so that the graphite can be baked in the cavity. The operator installs the graphite on the clamping member 44, and then installs the placement plate 42 on the placement frame 41, and then the placement frame 41 enters the chamber 11 for baking. After baking, the placement frame 41 drives the placement plate 42 to move out of the cavity, and the operator removes the placement plate 42, and finally, removes the graphite on the clamping member 44.

[0050] Reference Figure 8 As shown, a buffer assembly 5 is provided on the push plate 12; specifically, the buffer assembly 5 includes a structural groove 50, an elastic spring 51 and a buffer plate 52, the structural groove 50 is opened on the side of the push plate 12 facing the partition plate 10, a plurality of elastic springs 51 are provided on the structural groove 50, and a buffer plate 52 is provided on one side of the elastic spring 51.

[0051] When the push plate 12 pushes the gas in the chamber 11 on one side to the chamber 11 on the other side, since the through hole 22 is intermittently opened and closed, that is, when the through hole 22 is blocked, the blocking plate 24 on one side may be lifted up by the air pressure and cannot move. At this time, the push plate 12 continues to move, and the air pressure will push the buffer plate 52 to move toward the direction in the structural groove 50. At this time, the elastic spring 51 contracts, that is, the excessive gas will be reduced under the buffering of the buffer plate 52, so that the push plate 12 continues to move, and then when the through hole 22 is no longer blocked, the gas is discharged again and the air pressure in the corresponding chamber 11 is reduced, so that the push plate 12 can continue to move.

[0052] Continue to refer to Figure 8 and Figure 9 As shown, a rotating assembly 6 for driving the rotating shaft 60 to rotate is provided on the buffer plate 52; specifically, the rotating assembly 6 includes a rotating shaft 60, a rotating gear 61 and an L-shaped rack 62, several rotating shafts 60 are rotatably penetrated on the placement plate 42 and are connected with a corresponding row of placement grooves 43, the clamping member 44 is installed on the rotating shaft 60, and the corresponding rotating shafts 60 are connected by belt transmission.

[0053] Since the limit frame in the clamping member 44 is installed on the rotating shaft 60, the rotating shaft 60 can synchronously drive the limit frame to rotate in the placement groove 43. During this process, the clamping plate in the limit frame can drive the clamped graphite to rotate synchronously, so that the graphite can fully contact the hot air and inert gas in the chamber 11.

[0054] A rotating gear 61 is sleeved on the outer side of the rotating shaft 60, and a rectangular groove is opened on the buffer plate 52, and an L-shaped rack 62 is slidably penetrated on the rectangular groove, and the teeth on the inner side of the L-shaped rack 62 correspond to the rotating gear 61, that is, the placement plate 42 can be separated from the placement frame 41 and move up and down in the corresponding cavity under the drive of external force, and when moving, the rotation of the outer side of the rotating shaft 60 will mesh with the L-shaped rack 62 and drive the rotating shaft 60 to drive the clamping member 44 to rotate, and when the roasting is completed, After that, the placement plate 42 returns to the initial position, and the pushing plate 12 can continue to move. When one side of the pushing plate 12 contacts the partition plate 10, the L-shaped rack 62 will interfere with the partition plate 10 and the extended part will be retracted into the rectangular groove, that is, the structural groove 50. When the other side of the pushing plate 12 contacts the inner wall of the chamber 11, the end of the L-shaped rack 62 will contact the inner wall of the chamber 11 and move back to the initial position, and continue to correspond to the outer side of the rotating gear 61.

[0055] Embodiment 2: Based on Embodiment 1, refer to Figure 10 and Figure 11As shown, a moving component 7 for driving the placement plate 42 to move up and down is provided on the partition plate 10; specifically, the moving component 7 includes a receiving groove 70, a rotating lead screw 71, a threading groove 72, a rectangular cavity 73, a rectangular block 74, and a spring rod 75. The receiving grooves 70 are symmetrically opened on both sides of the partition plate 10, and a rotating lead screw 71 is rotated in the receiving groove 70. The rotating lead screws 71 are connected by a belt drive, that is, when one side of the rotating lead screw 71 is driven by an external force, it can drive the rotating lead screw 71 on the other side to rotate synchronously through the belt drive method.

[0056] A threading groove 72 corresponding to the rotating lead screw 71 is opened on one side of the placement frame 41, a rectangular cavity 73 corresponding to the threading groove 72 is opened on the placement plate 42, the moving component 7 includes a rectangular block 74 sliding in the rectangular cavity 73, a rotating groove threadedly connected to the rotating lead screw 71 is opened on the rectangular block 74, a spring rod 75 is provided between the rectangular block 74 and the rectangular cavity 73, and inclined surfaces are also opened on both sides of the rectangular block 74. That is, after the placement plate 42 is installed on the placement frame 41, the rectangular block 74 extends out of the rectangular cavity 73 and is located in the threading groove 72. When the placement plate 42 moves to the through groove 14, at this time, the inclined surface on the outside of the rectangular block 74 abuts against the inner side wall of the through groove 14 and retracts into the rectangular cavity 73, and at this time, the spring rod 75 is in a compressed state.

[0057] When the placement plate 42 completely moves into the cavity, at this time, the end of the rectangular block 74 corresponds to the receiving groove 70. At this time, the spring rod 75 can drive the rectangular block 74 to be inserted from the threading groove 72 into the receiving groove 70, so that the rotating groove at the end of the rectangular plate is in contact with the outside of the corresponding rotating lead screw 71 and is threadedly connected. After that, when the rotating lead screw 71 rotates, it can drive the placement plate 42 to move out of the placement frame 41 through the rectangular block 74. One side of the placement plate 42 that moves out of the placement frame 41 will be in contact with the push plate 12. At this time, the rotating lead screw 71 can limit and guide the placement plate 42 through the rectangular block 74, and the push plate 12 can limit and guide the placement plate 42 through the outside of the placement plate 42, so that the placement plate 42 can move in the up and down directions, so that the graphite on the clamping member 44 can be in contact with the hot air at different heights in the chamber 11, making the reaction more sufficient.

[0058] During operation: In the first step, install the graphite plate on the clamping member 44 of the loading unit 4, then install the placement plate 42 on the placement frame 41, and send the loading unit 4 into the corresponding chamber 11 through the through groove 14 by the sliding plate 17.

[0059] In the second step, an external pumping device fills an inert gas into one side chamber 11 through the connection groove 13, and starts the existing device in this side chamber 11 to heat and roast the graphite plate. The other side chamber 11 is an empty normal temperature environment.

[0060] Step 3: After the baking of one side chamber 11 is completed, drive the driving lead screw 30 to rotate, driving the contact plate 33 in the annular groove 32 to rotate. The contact plate 33 drives the sliding frame 23 to move downward through the passive plate 31, so that the sealing plate 24 no longer seals the through hole 22. At the same time, drive the lead screw 30 to drive the push plate 12 to move in the side chamber 11, and push the high-temperature inert gas into the other side chamber 11 through the through unit 2. The gas filters impurities through the filter screen 25, and the push plate 12 in the other side chamber 11 discharges the excess gas through the connection groove 13.

[0061] Step 4: Repeat the operation of Step 3 until the inert gas has no utilization value. The external gas pumping device pumps out the gas in the corresponding chamber 11 through the air outlet end and the connection groove 13.

[0062] Step 5: During the process of the push plate 12 pushing the gas, if the through hole 22 is blocked, causing the air pressure to lift the sealing plate 24 and preventing the push plate 12 from moving, the buffer plate 52 of the buffer assembly 5 will move into the structure groove 50 under the action of the air pressure, and the elastic spring 51 will contract for buffering. After the through hole 22 is no longer blocked, the push plate 12 will continue to move.

[0063] Step 6: When the placement plate 42 moves up and down in the cavity under the action of an external force, the rotating gear 61 on the outer side of the rotating shaft 60 of the rotating assembly 6 meshes with the L-shaped rack 62, driving the rotating shaft 60 to drive the clamping member 44 to rotate, so that the graphite plate is in full contact with the hot air and inert gas in the chamber 11.

[0064] Step 7: When the placement plate 42 moves into the through groove 14, the inclined surface on the outer side of the rectangular block 74 of the moving assembly 7 abuts against the inner side wall of the through groove 14 and retracts into the rectangular cavity 73, and the spring rod 75 is compressed; when the placement plate 42 completely moves into the cavity, the spring rod 75 drives the rectangular block 74 to be inserted into the receiving groove 70 from the through groove 72. Rotate the lead screw 71 to drive the placement plate 42 to move out of the placement frame 41 through the rectangular block 74, so that the graphite on the clamping member 44 can be in contact with the hot air at different heights in the chamber 11, and the reaction is more sufficient.

[0065] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and without departing from the spirit or basic characteristics of the present invention, the present invention can be implemented in other specific forms. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting.

[0066] In addition, it should be understood that although this specification is described in terms of embodiments, not every embodiment contains only an independent technical solution. This narrative style of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An isostatic graphite pressure calcination furnace, comprising a rectangular box (1) and a partition plate (10), characterized in that: The partition plate (10) divides the area inside the rectangular box (1) into two chambers (11). A push plate (12) slides on the inner wall of the chamber (11), and a through unit (2) is arranged inside the partition plate (10). Four connecting grooves (13) are also formed in the rectangular box (1), and two connecting grooves (13) form a group. The two groups of connecting grooves (13) are respectively communicated with the corresponding chambers (11). Two through grooves (14) corresponding to the two chambers (11) are symmetrically formed on one side of the rectangular box (1). A rectangular frame (15) is arranged on one side of the rectangular box (1). A cross beam (16) is installed in the middle of the rectangular frame (15). Slide plates (17) are slidably arranged on both sides of the cross beam (16) and the inner side wall of the rectangular frame (15). A bearing unit (4) is installed on the slide plate (17).

2. The isostatic graphite pressure calcination furnace according to claim 1, characterized in that: The through unit (2) includes an insertion slot (20) formed in the middle of the partition plate (10). Sliding grooves (21) are also formed on both sides of the insertion slot (20) on the partition plate (10). Through holes (22) that are respectively communicated with the inner wall of one side chamber (11) and the inner wall of the insertion slot (20) are formed on the inner walls of both sides of the sliding groove (21). A sliding frame (23) slides in the sliding groove (21). A plurality of blocking plates (24) corresponding to the through holes (22) are arranged on the sliding frame (23).

3. The isostatic graphite pressure calcination furnace according to claim 2, characterized in that: An insertion frame is inserted into the insertion slot (20), and a filter screen (25) is installed in the insertion frame.

4. An isostatic graphite pressure calcination furnace according to claim 1, characterized in that: A driving assembly (3) for driving the sliding frame (23) to move is arranged on the partition plate (10). The driving assembly (3) includes a driving screw rod (30) rotatably penetrating through the rectangular frame (15), the push plate (12), and the partition plate (10). The driving screw rod (30) is in threaded connection with the two push plates (12). A passive plate (31) is arranged on the sliding frame (23), and abutting grooves are symmetrically formed on the passive plate (31).

5. An isostatic graphite pressure calcination furnace according to claim 4, characterized in that: Annular grooves (32) respectively corresponding to the two sliding grooves (21) are symmetrically formed on the outer side of the driving screw rod (30). A plurality of abutting plates (33) are arranged on the inner diameter of the annular groove (32), and abutting grooves are also formed on the outer side of the abutting plate (33). The abutting groove on one side is in contact with the abutting groove on the passive plate (31). A return spring is also arranged between the sliding frame (23) and the sliding groove (21).

6. The isostatic graphite pressure calcining furnace according to claim 1, characterized in that: The bearing unit (4) includes insertion shafts (40) penetrating through both sides of the sliding plate (17). A placement frame (41) is arranged between the insertion shafts (40). A placement plate (42) is installed in the placement frame (41). A plurality of placement grooves (43) are formed on the placement plate (42), and a plurality of clamping members (44) are arranged in the placement grooves (43) to clamp the graphite plate.

7. An isostatic graphite pressure calcination furnace according to claim 6, characterized in that: A buffer assembly (5) is arranged on the push plate (12). The buffer assembly (5) includes a structure groove (50) formed on the side of the push plate (12) facing the partition plate (10). A plurality of elastic springs (51) are arranged on the structure groove (50), and a buffer plate (52) is jointly arranged on one side of the elastic springs (51).

8. An isostatic graphite pressure calcination furnace according to claim 7, characterized in that: A rotating assembly (6) for driving a rotating shaft (60) to rotate is provided on a buffer plate (52). The rotating assembly (6) includes a plurality of rotating shafts (60) rotatably passing through a placement plate (42) and communicating with corresponding rows of placement grooves (43). A clamping member (44) is installed on the rotating shaft (60), and the corresponding rotating shafts (60) are connected by a belt drive.

9. The isostatic graphite pressure calcination furnace according to claim 8, wherein: A rotating gear (61) is sleeved on the outer side of the rotating shaft (60), and a rectangular groove is formed on the buffer plate (52).

10. An isostatic graphite pressure calcination furnace according to claim 9, characterized in that: An L-shaped rack (62) is slidably inserted through the rectangular groove, and the teeth on the inner side of the L-shaped rack (62) correspond to the rotating gear (61).

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