A vertical continuous graphitization furnace

Abstract

The invention relates to the technical field of graphitization furnaces, and discloses a vertical continuous graphitization furnace, comprising a vertical furnace body, a bottom plate fixedly mounted on the bottom of the vertical furnace body, a material distribution plate fixedly mounted on the inner wall of the vertical furnace body, a servo motor fixedly mounted on the bottom of the bottom plate, a material distribution plate arranged between a heating bin and a discharge bin, for controlling the time interval for materials to enter from the heating bin into the discharge bin, that is, after the heating bin is aligned with a discharge hole on the material distribution plate, the graphitized materials can enter from the heating bin into the discharge bin, the servo motor drives the rotating shaft to rotate, and then drives the mounting frame to rotate, the rotation of the mounting frame drives the heating bin to perform circular motion, and the rotating speed of the rotating shaft is controlled, and then the heating time of the materials is controlled. Compared with the operation of controlling the graphitization of materials by heating and cooling, this method is simpler, and multiple materials can be graphitized at the same time.

Description

Technical Field

[0001] The invention relates to the technical field of graphitization furnaces, in particular to a vertical continuous graphitization furnace. Background Art

[0002] The graphitization of powdered materials is an important process for the production of graphite materials. The graphitization furnace is an important equipment for the graphitization of powdered materials. The cost, quality and economic benefits of graphite products are directly related to the graphitization furnace. In the relevant technology, the graphitization furnace includes internal series graphitization furnace, Acheson graphitization furnace and box furnace. The internal series graphitization furnace connects several electrode crucibles (with negative electrode materials) in series longitudinally. The electrode crucible is both a carrier and a heating element. The current passes through the electrode crucible to generate high temperature, which directly heats the internal negative electrode material. The Acheson graphitization furnace is loaded with a graphite crucible as a carrier of the negative electrode material in the original furnace, and the furnace core is filled with heating resistors. The outer layer is insulated with insulation materials and furnace walls. After power is turned on, the high temperature of 2600-3200℃ is mainly generated by the heat generated by the resistors, which indirectly heats the negative electrode material in the crucible, and finally achieves high-temperature graphitization of the negative electrode material. The core of the box-type furnace uses multiple anode plates to form a grid-type material box structure. The negative electrode raw materials are loaded into the material box. The anode plates are fixed by connecting columns with slots on four sides. The upper and lower sides of each material box are sealed with anode plates of the same material. The columns and anode plates that make up the material box structure together form the heating element. The current is sent to the heating element of the furnace core through the furnace head electrode. The high temperature generated directly heats the negative electrode material in the box to achieve the purpose of graphitization.

[0003] The existing Chinese patent CN219776301U discloses a vertical continuous graphitization furnace, which is provided with a vertical furnace body, and materials are put into the furnace body from the top, and the materials are graphitized in the process of falling. Although this method realizes continuous graphitization of materials, different materials require different heating times for graphitization, and the above-mentioned vertical continuous graphitization furnace cannot control the heating time of the materials. In order to ensure the graphitization effect of the materials, the heating temperature of the materials can only be adjusted. The materials are constantly moving in the furnace body, which will cause the heating efficiency of the materials to be unable to be accurately controlled by the heating structure, and thus lead to poor temperature control effect of the materials. Summary of the invention

[0004] The object of the present invention is to provide a vertical continuous graphitization furnace to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical scheme: a vertical continuous graphitization furnace, comprising a vertical furnace body, a bottom plate is fixedly installed at the bottom of the vertical furnace body, a material distribution plate is fixedly installed on the inner wall of the vertical furnace body, a servo motor is fixedly installed at the bottom of the bottom plate, a rotating shaft is fixedly installed at the output end of the servo motor, the rotating shaft passes through the bottom of the bottom plate through a bearing, a mounting frame is fixedly installed on the outer wall of the rotating shaft, a heating bin is fixedly installed on the outer wall of the mounting frame, a mounting ring is provided on the outer fixed sleeve of the heating bin, a plurality of heating bins are provided, and the circumferential array is divided into Arranged on the mounting frame, a material discharge hole is provided on the top of the material distribution plate, the inner diameter of the material discharge hole is consistent with the inner diameter of the heating bin, a material discharge bin is fixedly installed on the bottom of the material distribution plate, the bottom end of the material discharge bin movably penetrates the top of the bottom plate, a top plate is fixedly installed on the top of the vertical furnace body, the top end of the rotating shaft movably penetrates the bottom of the top plate, a hopper is fixedly installed on the top of the top plate, a material discharge bin is fixedly installed on the bottom end of the hopper, the material discharge bin extends to the bottom of the top plate, the bottom end of the material discharge bin is aligned with the heating bin, and the bottom end of the material discharge bin is staggered with the material discharge hole by the position of the heating bin;

[0006] A waste heat recovery mechanism is arranged between the discharge bin and the heating bin.

[0007] Furthermore, a heater is fixedly mounted on the top of the mounting frame, a heating rod is fixedly mounted on the output end of the heater, and the heating rod extends into the heating chamber.

[0008] Furthermore, the waste heat recovery mechanism includes an air intake bin, a diversion bin, an air vent, and an air intake pipe. The air intake bin is fixedly installed on the left outer wall of the discharge bin, and the right outer wall of the air intake bin is connected to be provided with a blowing pipe 1 and a blowing pipe 2. The blowing pipe 1 is inclined to the upper right, and the blowing pipe 2 is perpendicular to the air intake bin, and the blowing pipe 2 is located above the blowing pipe 1. The diversion bin is fixedly installed on the outer wall of the vertical furnace body, and the interior of the diversion bin is connected with the interior of the vertical furnace body. The outside of the diversion bin is connected with a ventilation pipe, and the bottom end of the ventilation pipe extends into the vertical furnace body. The vent is opened on the right outer wall of the discharge bin, and the vent is located above the bottom plate. The bottom end of the ventilation pipe is located between the distribution plate and the bottom plate, one end of the air intake pipe is connected with the interior of the heating bin, and the other end extends into the diversion bin.

[0009] Furthermore, four heaters are provided, three heating rods are provided on each heater, and the heating rods on the same heater extend into three adjacent heating chambers respectively.

[0010] Furthermore, the air blowing pipe 1 and the air blowing pipe 2 are both provided in plurality, and the air blowing pipe 1 and the air blowing pipe 2 are evenly spaced on the air intake bin, the air vent is directly opposite to the air blowing pipe 2, and an air intake joint is provided on the left side of the air intake bin, and three air intake joints are provided and evenly spaced from top to bottom on the air intake bin.

[0011] Furthermore, there are two diversion bins, one close to the top of the heating bin and the other close to the bottom of the heating bin. There are two groups of air inlet pipes, one group connected to the upper diversion bin and the other connected to the lower diversion bin.

[0012] Furthermore, the vertical furnace body includes an insulation layer 1, an outer support layer, an insulation layer 2, and an inner support layer. The inner support layer is arranged as the innermost layer, the outer side of the inner support layer is provided with an insulation layer 2, the outer side of the insulation layer 2 is provided with an outer support layer, and the outer side of the outer support layer is provided with an insulation layer 1.

[0013] Furthermore, an air inlet hole is provided on the outer wall of the rotating shaft, and the air inlet hole is located below the top plate. A rotating joint is provided at the top end of the rotating shaft, and the top port of the rotating joint is connected to an L-shaped tube, and the bottom end of the L-shaped tube is connected to a preprocessor, and the bottom end of the preprocessor is connected to a heat exchange pipe, and a water tank is provided outside the heat exchange pipe, and the bottom end of the heat exchange pipe is connected to an air pump, and the air pump is fixedly installed on the outer wall of the water tank.

[0014] Furthermore, the preprocessor includes a shell, which is fixedly mounted on the top of the water tank, and a ceramic filter plate is arranged inside the shell.

[0015] Furthermore, the air outlet end of the air pump is connected to a ventilation pipe, a spray tower is fixedly installed on the front of the water tank, the ventilation pipe is connected to the air inlet end of the spray tower, the top of the water tank is connected to a water inlet pipe, the right side of the water tank is connected to a drain pipe, and a sealing plug is clamped at the port of the drain pipe.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. A material distribution plate is set between the heating bin and the discharge bin to control the time interval for the material to enter the discharge bin from the heating bin. That is, the graphitized material can enter the discharge bin from the heating bin only after the heating bin is aligned with the discharge hole on the material distribution plate. The servo motor drives the rotating shaft to rotate, and then drives the mounting frame to rotate. The rotation of the mounting frame drives the heating bin to make a circular motion. By controlling the speed of the rotating shaft, the heating time of the material is controlled. Compared with the operation of controlling the graphitization of the material by heating and cooling, this method is simpler and can graphitize multiple materials at the same time;

[0018] 2. A hopper and a discharge bin are provided to add materials into the heating bin. Since the discharge bin and the discharge hole are staggered by one heating bin position, after the materials in a heating bin enter the discharge bin, the discharge bin can add materials into it, thus avoiding the problem of empty materials in the heating bin.

[0019] 3. A diversion bin is provided to connect the upper and lower vertical furnace bodies when the vertical furnace body is faulted, thereby ensuring that the air intake pipe driven by the heating bin can always extend into the diversion bin, and by introducing cooling airflow into the air intake bin, the airflow is blown from the first and second air blowing pipes to the materials in the discharge bin to cool the materials and slow down the rate at which the materials fall, so that the materials can be fully cooled. The airflow after heat exchange enters the vertical furnace body from the vent hole, then enters the diversion bin from the air exchange pipe, and finally enters the heating bin from the air intake pipe to preheat the materials;

[0020] 4. Connect the rotating shaft with the L-shaped tube through a rotary joint, and use the air pump to extract the air in the heat exchange pipe, and then extract the air in the pre-processor, so that the air in the L-shaped tube is extracted, and then the airflow participating in waste heat recovery in the vertical furnace body is sucked into the L-shaped tube from the air inlet, and then sucked into the pre-processor. After being processed by the pre-processor, the airflow enters the heat exchange pipe and is cooled by the cold water in the water tank, thereby realizing the processing and discharge of the waste heat recovery airflow. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of the present invention;

[0022] Figure 2 It is a structural schematic diagram of a front cross-sectional view of a vertical furnace body of the present invention;

[0023] Figure 3 It is a schematic diagram of the structure of the heating chamber and the mounting ring of the present invention;

[0024] Figure 4 For the present invention Figure 3 Structural diagram of exploded view;

[0025] Figure 5 It is a structural schematic diagram of the mounting frame and the heating chamber of the present invention;

[0026] Figure 6 It is a schematic diagram of the structure of the air intake bin and the discharge bin of the present invention;

[0027] Figure 7 It is a schematic diagram of the structure of the air intake bin, the air intake pipe 1 and the air intake pipe 2 of the present invention;

[0028] Figure 8 It is a structural schematic diagram of the hopper and the lower silo of the present invention;

[0029] Fig. 9It is a schematic diagram of the layers of the vertical furnace body of the present invention;

[0030] Fig.10 It is a structural schematic diagram of the pre-processor and the water tank of the present invention;

[0031] Fig.11 It is a structural schematic diagram of the front cross-sectional view of the water tank and the heat exchange pipe of the present invention.

[0032] In the figure: 1. Vertical furnace body; 101. Insulation layer 1; 102. Outer support layer; 103. Insulation layer 2; 104. Inner support layer; 2. Bottom plate; 3. Waste heat recovery mechanism; 301. Air inlet bin; 302. Diversion bin; 303. Ventilation pipe; 304. Blowing pipe 1; 305. Blowing pipe 2; 306. Ventilation hole; 307. Air inlet pipe; 4. Discharge bin; 5. Air inlet joint; 6. Servo motor; 7. Rotating shaft; 8. Distributing tray; 9. Installation Frame; 10, heating chamber; 11, mounting ring; 12, discharge hole; 13, heater; 14, heating rod; 15, top plate; 16, hopper; 17, discharge chamber; 18, air inlet; 19, rotary joint; 20, L-shaped pipe; 21, preprocessor; 2101, housing; 2102, ceramic filter plate; 22, water tank; 23, heat exchange pipe; 24, air pump; 25, ventilation pipe; 26, spray tower; 27, water inlet pipe; 28, drain pipe. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0034] Embodiment 1

[0035] See also Figure 1-Figure 9The present invention provides a technical solution: a vertical continuous graphitization furnace, comprising a vertical furnace body 1, a bottom plate 2 is fixedly installed at the bottom of the vertical furnace body 1, a material distribution plate 8 is fixedly installed on the inner wall of the vertical furnace body 1, a servo motor 6 is fixedly installed at the bottom of the bottom plate 2, a rotating shaft 7 is fixedly installed at the output end of the servo motor 6, the rotating shaft 7 passes through the bottom of the bottom plate 2 through a bearing, a mounting frame 9 is fixedly installed on the outer wall of the rotating shaft 7, a heating bin 10 is fixedly installed on the outer wall of the mounting frame 9, a mounting ring 11 is fixedly installed on the outer fixed sleeve of the heating bin 10, and the heating bin 10 is provided with There are multiple, and the circumferential array is distributed on the mounting frame 9, the top of the distribution plate 8 is provided with a discharge hole 12, the inner diameter of the discharge hole 12 is consistent with the inner diameter of the heating bin 10, the bottom of the distribution plate 8 is fixedly installed with a discharge bin 4, the bottom end of the discharge bin 4 movably penetrates the top of the bottom plate 2, the top of the vertical furnace body 1 is fixedly installed with a top plate 15, the top of the rotating shaft 7 movably penetrates the bottom of the top plate 15, the top of the top plate 15 is fixedly installed with a hopper 16, the bottom end of the hopper 16 is fixedly installed with a discharge bin 17, the discharge bin 17 extends to the bottom of the top plate 15, and the discharge bin 17 extends to the bottom of the top plate 15. The bottom end of the material bin 17 is aligned with the heating bin 10, and the bottom end of the material bin 17 is staggered with the material discharge hole 12 by a position of the heating bin 10. A material distribution plate 8 is arranged between the heating bin 10 and the material discharge bin 4 to control the time interval for the material to enter the material discharge bin 4 from the heating bin 10, that is, after the heating bin 10 is aligned with the material discharge hole 12 on the material distribution plate 8, the graphitized material can enter the material discharge bin 4 from the heating bin 10. The servo motor 6 drives the rotating shaft 7 to rotate, and then drives the mounting frame 9 to rotate. The rotation of the mounting frame 9 drives the heating bin 10 to make a circular motion. By controlling the rotation speed of the rotating shaft 7, the heating time of the material is controlled. Compared with the operation of controlling the graphitization of the material by heating and cooling, this method is simpler and can graphitize multiple materials at the same time. The hopper 16 and the lower bin 17 are provided to add materials into the heating bin 10. Because the lower bin 17 and the lower hole 12 are staggered by the position of one heating bin 10, after the material in one heating bin 10 enters the discharge bin 4, the lower bin 17 can add material into it, thereby avoiding the problem of empty material in the heating bin 10.

[0036] A waste heat recovery mechanism 3 is provided between the discharge bin 4 and the heating bin 10. After the material enters the discharge bin 4, the waste heat is transferred to the heating bin 10 through the waste heat recovery mechanism 3 to preheat the material.

[0037] A heater 13 is fixedly installed on the top of the mounting frame 9, and a heating rod 14 is fixedly installed on the output end of the heater 13. The heating rod 14 extends into the heating bin 10. The heating rod 14 is heated by the heater 13, and then the material in the heating bin 10 is heated to graphitize the material. Four heaters 13 are provided, and three heating rods 14 are provided on each heater 13. The heating rods 14 on the same heater 13 extend into three adjacent heating bins 10 respectively. The temperature in the three adjacent heating bins 10 is controlled by four heaters 13 respectively. Compared with using one heater 13, the temperature control is more accurate, and compared with using heaters 13 that are the same as the number of heating bins 10, the cost can be reduced.

[0038] The waste heat recovery mechanism 3 includes an air intake bin 301, a diverter bin 302, an air vent 306, and an air intake pipe 307. The air intake bin 301 is fixedly mounted on the left outer wall of the discharge bin 4. The right outer wall of the air intake bin 301 is connected to a blow pipe 1 304 and a blow pipe 2 305. The blow pipe 1 304 is inclined to the upper right. The blow pipe 2 305 is perpendicular to the air intake bin 301. The blow pipe 2 305 is located above the blow pipe 1 304. The diverter bin 302 is fixedly mounted on the outer wall of the vertical furnace body 1. The interior of the diverter bin 302 is connected to the interior of the vertical furnace body 1. The outside of the diverter bin 302 is connected to a ventilation pipe 303. The bottom end of the ventilation pipe 303 extends into the vertical furnace body 1. The air vent 306 is provided on the right outer wall of the discharge bin 4. The air vent 306 is located above the bottom plate 2. The ventilation pipe 303 The bottom end is located between the material distribution plate 8 and the bottom plate 2, one end of the air inlet pipe 307 is connected to the interior of the heating bin 10, and the other end extends into the shunt bin 302. The shunt bin 302 is provided to connect the vertical furnace body 1 with the upper and lower faults when the vertical furnace body 1 is faulted, thereby ensuring that the air inlet pipe 307 driven by the heating bin 10 can always extend into the shunt bin 302, and by passing a cooling airflow into the air inlet bin 301, the airflow is blown from the air blowing pipe 1 304 and the air blowing pipe 2 305 to the materials in the discharge bin 4, so as to cool the materials and slow down the rate at which the materials descend, so that the materials can be fully cooled, and the airflow after heat exchange enters the vertical furnace body 1 from the air vent 306, and then enters the shunt bin 302 from the air exchange pipe 303, and finally enters the heating bin 10 from the air inlet pipe 307 to preheat the materials;

[0039] Multiple air blowing pipes 1 304 and 2 air blowing pipes 305 are provided, and the air blowing pipes 1 304 and 2 air blowing pipes 305 are evenly spaced on the air inlet bin 301. The vent hole 306 is directly opposite to the air blowing pipe 2 305, so as to divert the cooling airflow and fully cool the material. An air inlet connector 5 is provided on the left side of the air inlet bin 301. There are three air inlet connectors 5, which are evenly spaced from top to bottom on the air inlet bin 301. The air inlet connector 5 is provided to connect the air source outlet pipeline with the air inlet bin 301, so that the cooling airflow can enter the air inlet bin 301. Three air inlet connectors 5 are provided so that the airflow is dispersed into the air inlet bin 301, and then dispersed into multiple air blowing pipes 1 304 and 2 air blowing pipes 305;

[0040] There are two shunt bins 302, one shunt bin 302 is close to the top of the heating bin 10, and the other shunt bin 302 is close to the bottom of the heating bin 10. Two groups of air inlet pipes 307 are provided, one group is connected with the upper shunt bin 302, and the other group is connected with the lower shunt bin 302. The heated airflow is guided to the upper and lower sections of the heating bin 10 through the shunt bin 302. The upper section is used to preheat the material, and the lower section is used to blow the material in the heating bin 10, so that after the heating bin 10 is aligned with the discharge hole 12, it can be quickly blown into the discharge bin 4, and the material can be prevented from remaining in the heating bin 10;

[0041] The vertical furnace body 1 includes a heat insulation layer 101, an outer supporting layer 102, a heat insulation layer 103, and an inner supporting layer 104. The inner supporting layer 104 is arranged at the innermost layer, and the outer side of the inner supporting layer 104 is provided with a heat insulation layer 103, and the outer side of the heat insulation layer 103 is provided with an outer supporting layer 102. The outer side of the outer supporting layer 102 is provided with a heat insulation layer 101. The heat insulation layer 101 is provided for outer layer heat insulation to avoid excessive temperature of the outer layer of the vertical furnace body 1. The heat insulation layer 103 is provided for inner layer heat insulation to reduce the internal temperature loss of the vertical furnace body 1. The outer supporting layer 102 and the inner supporting layer 104 are provided to support the heat insulation layer 101 and the heat insulation layer 103 respectively to ensure the support strength of the vertical furnace body 1.

[0042] Working principle: When in use, turn on the servo motor 6 to drive the rotating shaft 7 to rotate, and the rotation of the rotating shaft 7 drives the mounting frame 9 to rotate, and then drives the heating bin 10 to rotate. After the heating bin 10 rotates to align with the discharge bin 17, the discharge bin 17 is opened to add materials into the heating bin 10, and the heater 13 is turned on to heat the heating rod 14, thereby heating the materials in the heating bin 10. After the heating bin 10 rotates to align with the discharge hole 12, the materials enter the discharge bin 4 from the heating bin 10. By controlling the rotation speed of the rotating shaft 7, the heating time of the materials in the heating bin 10 is controlled. The heater 13 and the heating rod 14 stabilize the interior of the heating bin 10 at a certain temperature, so that the materials can be heated at the optimal temperature and heating. Graphitization is carried out within the range of thermal time to avoid the problem that the inner layer material cannot be graphitized. The external air source is connected to the air inlet bin 301 through the air inlet joint 5. The air flow enters the air blowing pipe 1 304 and the air blowing pipe 2 305 from the air inlet bin 301. The air blowing pipe 1 304 blows the air flow obliquely to the material, and the air blowing pipe 2 305 blows the air flow vertically to the material, which slows down the falling speed of the material and cools the material at the same time. The air flow participating in heat exchange enters the vertical furnace body 1 from the air vent 306, then enters the diversion bin 302 from the air exchange pipe 303, and finally enters the heating bin 10 from the air inlet pipe 307. One part is used to preheat the material, and the other part is blown to the material to avoid the material remaining in the heating bin 10.

[0043] Embodiment 2

[0044] See also Figure 1 , Fig.10 , Fig.11The present invention provides a technical solution: a vertical continuous graphitization furnace, comprising a vertical furnace body 1, a bottom plate 2 is fixedly installed at the bottom of the vertical furnace body 1, a material distribution plate 8 is fixedly installed on the inner wall of the vertical furnace body 1, a servo motor 6 is fixedly installed at the bottom of the bottom plate 2, a rotating shaft 7 is fixedly installed at the output end of the servo motor 6, the rotating shaft 7 passes through the bottom of the bottom plate 2 through a bearing, a mounting frame 9 is fixedly installed on the outer wall of the rotating shaft 7, a heating bin 10 is fixedly installed on the outer wall of the mounting frame 9, a mounting ring 11 is fixedly installed on the outer fixed sleeve of the heating bin 10, and the heating bin 10 is provided with There are multiple, and the circumferential array is distributed on the mounting frame 9, the top of the distribution plate 8 is provided with a discharge hole 12, the inner diameter of the discharge hole 12 is consistent with the inner diameter of the heating bin 10, the bottom of the distribution plate 8 is fixedly installed with a discharge bin 4, the bottom end of the discharge bin 4 movably penetrates the top of the bottom plate 2, the top of the vertical furnace body 1 is fixedly installed with a top plate 15, the top of the rotating shaft 7 movably penetrates the bottom of the top plate 15, the top of the top plate 15 is fixedly installed with a hopper 16, the bottom end of the hopper 16 is fixedly installed with a discharge bin 17, the discharge bin 17 extends to the bottom of the top plate 15, and the discharge bin 17 extends to the bottom of the top plate 15. The bottom end of the material bin 17 is aligned with the heating bin 10, and the bottom end of the material bin 17 is staggered with the material discharge hole 12 by a position of the heating bin 10. A material distribution plate 8 is arranged between the heating bin 10 and the material discharge bin 4 to control the time interval for the material to enter the material discharge bin 4 from the heating bin 10, that is, after the heating bin 10 is aligned with the material discharge hole 12 on the material distribution plate 8, the graphitized material can enter the material discharge bin 4 from the heating bin 10. The servo motor 6 drives the rotating shaft 7 to rotate, and then drives the mounting frame 9 to rotate. The rotation of the mounting frame 9 drives the heating bin 10 to make a circular motion. By controlling the rotation speed of the rotating shaft 7, the heating time of the material is controlled. Compared with the operation of controlling the graphitization of the material by heating and cooling, this method is simpler and can graphitize multiple materials at the same time. The hopper 16 and the lower bin 17 are provided to add materials into the heating bin 10. Because the lower bin 17 and the lower hole 12 are staggered by the position of one heating bin 10, after the material in one heating bin 10 enters the discharge bin 4, the lower bin 17 can add material into it, thereby avoiding the problem of empty material in the heating bin 10.

[0045] A waste heat recovery mechanism 3 is provided between the discharge bin 4 and the heating bin 10. After the material enters the discharge bin 4, the waste heat is transferred to the heating bin 10 through the waste heat recovery mechanism 3 to preheat the material.

[0046] A heater 13 is fixedly installed on the top of the mounting frame 9, and a heating rod 14 is fixedly installed on the output end of the heater 13. The heating rod 14 extends into the heating bin 10. The heating rod 14 is heated by the heater 13, and then the material in the heating bin 10 is heated to graphitize the material. Four heaters 13 are provided, and three heating rods 14 are provided on each heater 13. The heating rods 14 on the same heater 13 extend into three adjacent heating bins 10 respectively. The temperature in the three adjacent heating bins 10 is controlled by four heaters 13 respectively. Compared with using one heater 13, the temperature control is more accurate, and compared with using heaters 13 that are the same as the number of heating bins 10, the cost can be reduced.

[0047] The waste heat recovery mechanism 3 includes an air intake bin 301, a diverter bin 302, an air vent 306, and an air intake pipe 307. The air intake bin 301 is fixedly mounted on the left outer wall of the discharge bin 4. The right outer wall of the air intake bin 301 is connected to a blow pipe 1 304 and a blow pipe 2 305. The blow pipe 1 304 is inclined to the upper right. The blow pipe 2 305 is perpendicular to the air intake bin 301. The blow pipe 2 305 is located above the blow pipe 1 304. The diverter bin 302 is fixedly mounted on the outer wall of the vertical furnace body 1. The interior of the diverter bin 302 is connected to the interior of the vertical furnace body 1. The outside of the diverter bin 302 is connected to a ventilation pipe 303. The bottom end of the ventilation pipe 303 extends into the vertical furnace body 1. The air vent 306 is provided on the right outer wall of the discharge bin 4. The air vent 306 is located above the bottom plate 2. The ventilation pipe 303 The bottom end is located between the material distribution plate 8 and the bottom plate 2, one end of the air inlet pipe 307 is connected to the interior of the heating bin 10, and the other end extends into the shunt bin 302. The shunt bin 302 is provided to connect the vertical furnace body 1 with the upper and lower faults when the vertical furnace body 1 is faulted, thereby ensuring that the air inlet pipe 307 driven by the heating bin 10 can always extend into the shunt bin 302, and by passing a cooling airflow into the air inlet bin 301, the airflow is blown from the air blowing pipe 1 304 and the air blowing pipe 2 305 to the materials in the discharge bin 4, so as to cool the materials and slow down the rate at which the materials descend, so that the materials can be fully cooled, and the airflow after heat exchange enters the vertical furnace body 1 from the air vent 306, and then enters the shunt bin 302 from the air exchange pipe 303, and finally enters the heating bin 10 from the air inlet pipe 307 to preheat the materials;

[0048] The outer wall of the rotating shaft 7 is provided with an air inlet 18, and the air inlet 18 is located below the top plate 15. A rotating joint 19 is provided at the top of the rotating shaft 7. The top port of the rotating joint 19 is connected to an L-shaped tube 20. The bottom end of the L-shaped tube 20 is connected to a pre-processor 21. The bottom end of the pre-processor 21 is connected to a heat exchange pipe 23. The outside of the heat exchange pipe 23 is provided with a water tank 22. The bottom end of the heat exchange pipe 23 is connected to an air pump 24. The air pump 24 is fixedly installed on the outer wall of the water tank 22. The joint 19 connects the rotating shaft 7 with the L-shaped tube 20, and the air in the heat exchange pipe 23 is pumped out by the air pump 24, and then the air in the pre-processor 21 is pumped out, so that the air in the L-shaped tube 20 is pumped out, and then the airflow participating in the waste heat recovery in the vertical furnace body 1 is sucked into the L-shaped tube 20 from the air inlet 18, and then sucked into the pre-processor 21. After being processed by the pre-processor 21, the airflow enters the heat exchange pipe 23 and is cooled by the cold water in the water tank 22, so as to realize the processing and discharge of the waste heat recovery airflow;

[0049] The preprocessor 21 includes a housing 2101, which is fixedly mounted on the top of the water tank 22. A ceramic filter plate 2102 is disposed inside the housing 2101. The high-temperature resistant ceramic filter plate 2102 is used as a heat-resistant material to filter the material powder in the waste heat recovery airflow to prevent the material powder from clogging the heat exchange pipe 23 when the airflow passes through the continuously bent heat exchange pipe 23.

[0050] The air outlet end of the air pump 24 is connected to a ventilation pipe 25, a spray tower 26 is fixedly installed on the front of the water tank 22, the ventilation pipe 25 is connected to the air inlet end of the spray tower 26, the top of the water tank 22 is connected to a water inlet pipe 27, the right side of the water tank 22 is connected to a drain pipe 28, a sealing plug is clamped at the port of the drain pipe 28, the spray tower 26 is provided for secondary treatment of the waste heat gas flow to ensure that the waste heat gas flow meets the discharge requirements, the water inlet pipe 27 is provided for adding cold water into the water tank 22, and the drain pipe 28 is provided for discharging the heated water in the water tank 22.

[0051] Working principle: When in use, after the material is heated and discharged, the waste heat recovery mechanism 3 recovers the waste heat of the material, and the airflow participating in the waste heat recovery enters the rotating shaft 7 from the air inlet 18, and then enters the L-shaped tube 20 through the rotary joint 19, and then enters the pre-processor 21, and the material powder therein is filtered out by the outer shell 2101, and then enters the heat exchange pipe 23, and is cooled by the cold water in the water tank 22, and finally is guided to the spray tower 26 by the air pump 24 for spray treatment.

[0052] Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in the field without making any creative work shall fall within the scope of protection of the present invention.

Claims

1. A vertical continuous graphitization furnace, comprising a vertical furnace body (1), characterized in that: A bottom plate (2) is fixedly mounted on the bottom of the vertical furnace body (1), a material distribution plate (8) is fixedly mounted on the inner wall of the vertical furnace body (1), a servo motor (6) is fixedly mounted on the bottom of the bottom plate (2), a rotating shaft (7) is fixedly mounted on the output end of the servo motor (6), the rotating shaft (7) passes through the bottom of the bottom plate (2) through a bearing, a mounting frame (9) is fixedly mounted on the outer wall of the rotating shaft (7), a heating bin (10) is fixedly mounted on the outer wall of the mounting frame (9), a mounting ring (11) is fixedly mounted on the outer fixed sleeve of the heating bin (10), a plurality of heating bins (10) are arranged, and a circular array is distributed on the mounting frame (9), a material discharge hole (12) is opened on the top of the material distribution plate (8), and the material discharge hole (12) is fixedly mounted on the outer wall of the mounting frame (9). The inner diameter of the hole (12) is consistent with the inner diameter of the heating bin (10); a discharge bin (4) is fixedly installed at the bottom of the material distribution plate (8); the bottom end of the discharge bin (4) movably penetrates the top of the bottom plate (2); a top plate (15) is fixedly installed at the top of the vertical furnace body (1); the top end of the rotating shaft (7) movably penetrates the bottom of the top plate (15); a hopper (16) is fixedly installed at the top of the top plate (15); a lower material bin (17) is fixedly installed at the bottom end of the hopper (16); the lower material bin (17) extends below the top plate (15); the bottom end of the lower material bin (17) is aligned with the heating bin (10); the bottom end of the lower material bin (17) and the discharge hole (12) are offset by a position of the heating bin (10); A waste heat recovery mechanism (3) is provided between the discharge bin (4) and the heating bin (10).

2. A vertical continuous graphitization furnace according to claim 1, characterized in that: A heater (13) is fixedly mounted on the top of the mounting frame (9), a heating rod (14) is fixedly mounted on the output end of the heater (13), and the heating rod (14) extends into the heating chamber (10).

3. A vertical continuous graphitization furnace according to claim 1, characterized in that: The waste heat recovery mechanism (3) comprises an air intake bin (301), a diversion bin (302), an air vent (306), and an air intake pipe (307). The air intake bin (301) is fixedly mounted on the left outer wall of the discharge bin (4). The right outer wall of the air intake bin (301) is connected to a first air blowing pipe (304) and a second air blowing pipe (305). The first air blowing pipe (304) is inclined to the upper right, and the second air blowing pipe (305) is perpendicular to the air intake bin (301). The second air blowing pipe (305) is located above the first air blowing pipe (304). The diversion bin (302) is fixedly mounted on the vertical furnace body ( 1), the interior of the diversion bin (302) is connected to the interior of the vertical furnace body (1), the outer side of the diversion bin (302) is connected to a ventilation pipe (303), the bottom end of the ventilation pipe (303) extends into the vertical furnace body (1), the ventilation hole (306) is provided on the right outer wall of the discharge bin (4), the ventilation hole (306) is located above the bottom plate (2), the bottom end of the ventilation pipe (303) is located between the distribution plate (8) and the bottom plate (2), one end of the air inlet pipe (307) is connected to the interior of the heating bin (10), and the other end extends into the diversion bin (302).

4. A vertical continuous graphitization furnace according to claim 2, characterized in that: Four heaters (13) are provided, three heating rods (14) are provided on each heater (13), and the heating rods (14) on the same heater (13) extend into three adjacent heating chambers (10) respectively.

5. The vertical continuous graphitization furnace according to claim 3, characterized in that: The first air blowing pipe (304) and the second air blowing pipe (305) are both provided in plurality, and the first air blowing pipe (304) and the second air blowing pipe (305) are evenly spaced and distributed on the air inlet bin (301), and the air vent (306) is directly opposite to the second air blowing pipe (305), and an air inlet connector (5) is provided on the left side of the air inlet bin (301), and three air inlet connectors (5) are provided and evenly spaced and distributed on the air inlet bin (301) from top to bottom.

6. The vertical continuous graphitization furnace according to claim 3, characterized in that: There are two diversion chambers (302), one diversion chamber (302) is close to the top end of the heating chamber (10), and the other diversion chamber (302) is close to the bottom end of the heating chamber (10). There are two groups of air inlet pipes (307), one group is connected to the upper diversion chamber (302), and the other group is connected to the lower diversion chamber (302).

7. The vertical continuous graphitization furnace according to claim 3, characterized in that: The vertical furnace body (1) comprises a heat insulation layer 1 (101), an outer supporting layer (102), a heat insulation layer 2 (103), and an inner supporting layer (104); the inner supporting layer (104) is arranged as the innermost layer; the outer side of the inner supporting layer (104) is provided with a heat insulation layer 2 (103); the outer side of the heat insulation layer 2 (103) is provided with an outer supporting layer (102); and the outer side of the outer supporting layer (102) is provided with a heat insulation layer 1 (101).

8. The vertical continuous graphitization furnace according to claim 1, characterized in that: An air inlet (18) is provided on the outer wall of the rotating shaft (7), and the air inlet (18) is located below the top plate (15). A rotating joint (19) is provided at the top end of the rotating shaft (7), and the top port of the rotating joint (19) is connected to an L-shaped tube (20), and the bottom end of the L-shaped tube (20) is connected to a pre-processor (21), and the bottom end of the pre-processor (21) is connected to a heat exchange pipe (23), and a water tank (22) is provided outside the heat exchange pipe (23), and the bottom end of the heat exchange pipe (23) is connected to an air pump (24), and the air pump (24) is fixedly installed on the outer wall of the water tank (22).

9. A vertical continuous graphitization furnace according to claim 8, characterized in that: The preprocessor (21) comprises a housing (2101), wherein the housing (2101) is fixedly mounted on the top of the water tank (22), and a ceramic filter plate (2102) is arranged inside the housing (2101).

10. The vertical continuous graphitization furnace according to claim 8, characterized in that: The air outlet end of the air pump (24) is connected to a vent pipe (25), a spray tower (26) is fixedly installed on the front of the water tank (22), the vent pipe (25) is connected to the air inlet end of the spray tower (26), the top of the water tank (22) is connected to a water inlet pipe (27), the right side of the water tank (22) is connected to a drain pipe (28), and a sealing plug is clamped at the end of the drain pipe (28).

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