A method and device for drying foam carbon with high heat insulation

Abstract

The present invention discloses a method and device for drying foam carbon with high heat insulation, which relates to the technical field of foam carbon drying. The drying furnace body has furnace covers hermetically connected to both ends, and a heater is coaxially arranged inside the drying furnace body. A limiting sleeve is sleeved outside the heater, and a moving part capable of reciprocating along its axis is sleeved on the limiting sleeve. A spiral groove is arranged on the limiting sleeve, and the moving part is inserted and connected with the spiral groove in a matching manner. The moving part includes a rotating ring sleeved on the limiting sleeve. While the moving part moves on the limiting sleeve, the rotating ring rotates around the spiral groove. Through the cooperation of the moving part and the spiral groove, several clamping parts are driven to rotate while moving, so as to drive the material to be dried to rotate around the heat source, enabling the material to be in uniform contact with the heat source, improving the drying uniformity, preventing the problem that the local heating of the material is too fast, the residual moisture gasifies too fast, or gas is generated by the decomposition of substances, resulting in a large number of pores being damaged, and improving the forming quality of the foam carbon.

Description

Technical Field

[0001] The present invention relates to the technical field of foam carbon drying, and particularly relates to a high-insulation foam carbon drying method and device. Background Art

[0002] Foam carbon is a new type of carbonaceous material, which is a three-dimensional network lightweight porous material mainly composed of carbon elements. Foam carbon is a new material with excellent performance and wide applications. In addition to the conventional properties of carbon materials, foam carbon also has characteristics such as low density, high strength, thermal shock resistance, easy processing, and good physical and chemical properties such as electrical conductivity, thermal conductivity, and wave absorption.

[0003] During the preparation of foam carbon, the material needs to be preheated to make it foam and expand, and it also needs to be dried and carbonized to prepare foam carbon. Most of the existing drying equipment places the heating source equipment inside to improve the heating efficiency. During the heating and drying process, the material in the furnace is mostly in a static state. The material closest to the heat source end is heated fastest, resulting in uneven heating of the material, easy local overheating, too fast gasification of residual moisture, or gas generation due to material decomposition, which easily leads to a large number of pores being damaged. Summary of the Invention

[0004] The purpose of the present invention is to provide a high-insulation foam carbon drying method and device, which has the advantages of driving the material to be dried to rotate around the heat source, realizing uniform contact between the material and the heat source, improving the drying uniformity, preventing the material from being heated too fast locally, too fast gasification of residual moisture, or gas generation due to material decomposition, resulting in a large number of pores being damaged, and improving the forming quality of foam carbon.

[0005] To achieve the above purpose, the present invention provides the following technical solution: A high-insulation foam carbon drying device includes a drying furnace body with furnace covers hermetically connected at both ends, and a heater is coaxially arranged inside the drying furnace body. A limiting sleeve is sleeved outside the heater, and a moving member capable of reciprocating along its axis is sleeved on the limiting sleeve. A spiral groove is provided on the limiting sleeve, and the moving member is inserted and connected with the spiral groove in a matching manner. The moving member includes a rotating ring sleeved on the limiting sleeve, and the rotating ring rotates around the spiral groove while the moving member moves on the limiting sleeve;

[0006] A plurality of clamping members for placing materials are arranged on the moving member. The clamping members are hinged to the moving member through bearing members, and the clamping members can rotate around the hinged end of the bearing member while revolving around the limiting sleeve with the rotating ring, so that the clamping members are always in a vertical state.

[0007] Further, the moving member further includes a fixing ring, an annular plate, and a driving member. Two clamping blocks are provided on the outer wall of the annular plate, and sliding grooves for limiting the sliding of the two clamping blocks are formed on the inner wall of the drying furnace body. The driving member is connected to the annular plate and drives the annular plate to move. The fixing ring is connected to the annular plate, and one end of the fixing ring is connected to the rotating ring through a bearing.

[0008] Further, the fixing ring and the rotating ring are sleeved on the limiting sleeve, and a guiding rod is provided on the inner wall of the rotating ring. The guiding rod is inserted into the spiral groove.

[0009] Further, there are two rotating rings, and a plurality of mounting support plates are annularly arranged on the outer surfaces of the two rotating rings, and the mounting support plates on the two rotating rings correspond to each other along the axial direction of the rotating ring.

[0010] Further, both ends of the clamping member are respectively hinged to the middle of two corresponding mounting support plates on the two rotating rings.

[0011] Further, the clamping member includes a supporting bracket, a first clamping plate, and a second clamping plate. The first clamping plate and the second clamping plate are symmetrically arranged on the supporting bracket, and the first clamping plate and the second clamping plate are connected to the supporting bracket through springs and limiting rods.

[0012] Further, the outer side of the fixing ring is respectively connected with a first half-ring and a second half-ring through two support plates. A speed reducer is installed on the mounting support plate. The output shaft at one end of the speed reducer is sleeved with a driving gear. An inner arc-shaped rack is provided on the inner wall of the first half-ring, and an outer arc-shaped rack is provided on the outer wall of the second half-ring. The driving gear is intermittently engaged with the inner arc-shaped rack and the outer arc-shaped rack respectively. The shaft rod on one side of the clamping member is connected to the output shaft at the other end of the speed reducer.

[0013] A high-insulation foam carbon drying method uses the above drying device for drying, and includes the following steps:

[0014] S1: Mix the carbon source powder with water containing a pore-forming agent and stir it into a solid-liquid mixed state. Then put the solid-liquid mixed material into a placement container, and then place the container into the drying furnace body for preheating.

[0015] S2: Raise the temperature in the drying furnace body to 180 - 350 °C, preheat the shaped material, with a treatment time of 10 - 120 min, and discharge the moisture in the material.

[0016] S3: After preheating, ensure the sealing state of the drying furnace body. After adjusting the drying furnace body to a vacuum state, observe the internal situation, and then fill nitrogen or inert gas into the drying furnace body.

[0017] S4: Under vacuum conditions, or under the protection of nitrogen or inert gas, raise the temperature inside the drying furnace to 1000 - 2000 °C, perform carbonization treatment on the material for 1 - 60 minutes, and then cool it under vacuum, nitrogen or inert gas protection to obtain the foam carbon.

[0018] Further, the carbon source powder is any one or more of flour, corn flour, glutinous rice flour, or rice flour. The amount of the pore-forming agent is 1 - 180 g per kilogram of the carbon source powder. The pore-forming agent is any one or more of biological fungus pore-forming agents, organic matter pore-forming agents, or inorganic compound pore-forming agents. And when the pore-forming agent contains biological fungus pore-forming agents or organic matter pore-forming agents, before stirring into a solid-liquid mixture state, the temperature is controlled at 0 - 38 °C, and after forming the mixture state, it is left to stand and ferment at 40 - 42 °C for 0.5 - 3 hours.

[0019] Further, the biological fungus pore-forming agent is one or more of yeast and yogurt; the organic matter pore-forming agent is one or more of white sugar, honey, milk, alcohol, or white liquor; the inorganic compound pore-forming agent is one or more of sodium carbonate, calcium carbonate, sodium bicarbonate, calcium bicarbonate, ammonium carbonate, ammonium bicarbonate, potassium carbonate, potassium bicarbonate, or magnesium carbonate.

[0020] The technical effects and advantages of the present invention:

[0021] 1. The clamping member of the present invention is hinged to the moving member through a bearing member. While the clamping member orbits around the limiting sleeve following the rotation, it can rotate around the hinged end of the bearing member, so that the clamping member is always in a vertical state. Through the cooperation of the moving member and the spiral groove, while moving, it drives several clamping members to rotate, thereby driving the material to be dried to rotate around the heat source, realizing uniform contact between the material and the heat source, improving the drying uniformity, preventing the problem that the local heating of the material is too fast, the residual moisture vaporizes too fast, or the gas generated by the decomposition of the substance causes a large number of pores to be damaged, improving the forming quality of the foam carbon. Under the action of the hinge, the clamping member relies on its own weight to ensure that the cylinder for storing the material always has the opening facing, avoiding the problem that the cylinder tilts due to rotation and the material drops.

[0022] 2. After the driving gear rotates around the heater for one circle, while the clamping member rotates around the heater for one circle, driven by the speed reducer, the clamping member can always adjust its inclination state to ensure that it is always in a vertical state during the rotation, and with gear limit, the clamping member will not shake back and forth during the rotation, realizing stable adjustment, avoiding the problem that the material overflows due to shaking, and improving the stability of the drive. Description of the Drawings

[0023] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0024] Figure 2Cross-sectional view of the drying furnace body structure of the present invention;

[0025] Figure 3 Of the present invention Figure 2 Enlarged view of part A;

[0026] Figure 4 Schematic diagram of the partial structure of the moving part of the present invention;

[0027] Figure 5 Enlarged view of part B of the present invention 4;

[0028] Figure 6 Schematic diagram of the clamping part structure of the present invention;

[0029] Figure 7 Schematic diagram of the structure of the second embodiment of the present invention;

[0030] Figure 8 Schematic diagram of the fixed ring structure of the present invention.

[0031] In the figure:

[0032] 1. Drying furnace body; 11. Heater; 12. Limit sleeve; 121. Spiral groove; 13. Slide groove; 2. Moving part; 21. Fixed ring; 211. First half ring; 2111. Inner arc rack; 212. Second half ring; 2121. Outer arc rack; 22. Rotating ring; 221. Guide rod; 222. Installation support plate; 2221. Driving gear; 23. Annular plate; 231. Clamping block; 24. Driving part; 3. Clamping part; 31. Bearing part; 32. Support bracket; 33. First clamping plate; 34. Second clamping plate. Detailed implementation manners

[0033] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0034] Embodiment 1: Refer to Figure 1 - Figure 6, which is the first embodiment of the present invention, provides a high-insulation foam carbon drying device, including a drying furnace body 1 with furnace lids hermetically connected at both ends. The furnace lids at both ends of the drying furnace body 1 can be opened to achieve feeding or discharging at one end, or feeding at one end and discharging at the other end, and the sealing effect can also be ensured in its closed state. A heater 11 is coaxially arranged in the drying furnace body 1, and a preheating air inlet is arranged at the upper end of the drying furnace body 1. Since the heating temperature of the heater 11 rises quickly and is high, which cannot meet the preheating temperature requirements, a preheating air inlet and a pipeline communicating with the preheating air inlet are arranged on the drying furnace body 1. By receiving an external heat source through the preheating air inlet, preheating and drying carbonization can be realized in the same furnace body. An air vent pipeline is also arranged at the upper end of the drying furnace body 1. The lower part of the air vent pipeline communicates with the drying furnace body 1 through several pipelines. One end of the air vent pipeline is connected to an air pump, and nitrogen or inert gas is introduced into one end of the air vent pipeline. Electric control valves are arranged at both ends of the air vent pipeline. When air extraction is required, the electric control valve on the air vent pipeline at the suction end is opened to achieve a vacuum state for the drying furnace body 1. When nitrogen or inert gas needs to be filled, the electric control valve on the air vent pipeline at the suction end is closed, and the electric control valve on the air vent pipeline at the gas injection end is opened to realize the switching between gas injection and suction. A limiting sleeve 12 is sleeved outside the heater 11, and a moving part 2 that can reciprocate along its axis is sleeved on the limiting sleeve 12. It should be understood that the heater 11 is conventionally arranged in the middle part of the drying furnace body 1, and the area with the maximum heat energy during its heating is also in the middle section of the furnace. The two ends in the furnace body belong to the preheating area. When the foam carbon raw material is being dried, it should be moved to the area with the maximum heat energy of the heater 11. During the placement or subsequent taking of the foam carbon raw material, the clamping part 3 needs to be moved to the furnace mouth of the drying furnace body 1. A spiral groove 121 is arranged on the limiting sleeve 12, and the moving part 2 is inserted and connected with the spiral groove 121 in a matching manner. Since the heater 11 has a certain heat energy range during heating, the moving part 2 moves and is limited by the spiral groove 121 to make the rotating ring 22 rotate around the spiral groove 121, driving the foam carbon raw material to move to the heat energy range. And it is necessary to reciprocate the moving part 2 and cooperate with the spiral groove 121 for limitation to realize that the foam carbon raw material can continuously rotate around the heat source within the heat energy range in the furnace. The limiting sleeve 12 wraps the heater 11 inside, avoiding the possibility that the material can directly contact the heat source, and avoiding the direct contact between broken materials or waste chips and the heat source, which is likely to increase the fire risk and cause equipment damage. Secondly, the limiting sleeve 12 also exists as a heat conducting part to conduct the heat source to the inside of the drying furnace body 1.

[0035] The moving member 2 includes a rotating ring 22 sleeved on the limiting sleeve 12. While the moving member 2 moves on the limiting sleeve 12, the rotating ring 2 rotates around the spiral groove 121. A plurality of clamping members 3 for placing materials are arranged on the moving member 2. The clamping members 3 are hinged to the moving member 2 through bearing members 31. The clamping members 3 can rotate around the hinged ends of the bearing members 31 while revolving around the limiting sleeve 12 following the rotating ring 22, so that the clamping members 3 are always in a vertical state. Through the cooperation of the moving member 2 and the spiral groove 121, when moving, a plurality of clamping members 3 are driven to rotate, thereby driving the materials to be dried to rotate around the heat source, realizing uniform contact between the materials and the heat source, improving the drying uniformity, preventing the problems that the local heating of the materials is too fast, the residual moisture vaporizes too fast, or the substances decompose to generate gases, resulting in a large number of pores being damaged, improving the forming quality of the foam carbon. Under the action of the hinge, the clamping members 3 rely on their own weights to ensure that the cylinder body for storing materials always has an opening facing direction, avoiding the problem that the cylinder body tilts due to rotation, resulting in the falling of the materials.

[0036] The moving member 2 further includes a fixing ring 21, an annular plate 23 and a driving member 24. The driving member 24 can be a cylinder or a combination of a motor and a lead screw. Two clamping blocks 231 are arranged on the outer wall of the annular plate 23. Sliding grooves 13 for limiting the sliding of the two clamping blocks 231 are formed on the inner wall of the drying furnace body 1. When the annular plate 23 moves, the driving member 24 is connected to the annular plate 23 and drives the annular plate 23 to move. The fixing ring 21 is connected to the annular plate 23. One end of the fixing ring 21 is connected to the rotating ring 22 through a bearing. The driving member 24 drives the annular plate 23 to move. The clamping blocks 231 at both ends of the annular plate 23 are limited to slide by the sliding grooves 13, improving the stability when the annular plate 23 moves. The annular plate 23 moves to push the fixing ring 21 to move on the limiting sleeve 12.

[0037] The fixing ring 21 and the rotating ring 22 are sleeved on the limiting sleeve 12. A guide rod 221 is arranged on the inner wall of the rotating ring 22. The guide rod 221 is inserted into the spiral groove 121. The movement of the fixing ring 21 drives the movement of the rotating ring 22. The rotating ring 22 moves spirally in the spiral groove 121 following the guide rod 221, thereby driving the clamping members 3 to rotate together, realizing rotation around the heater 11 and achieving uniform heating.

[0038] There are two rotating rings 22, and a number of mounting support plates 222 are annularly arrayed on the outer surfaces of the two rotating rings 22. The mounting support plates 222 on the two rotating rings 22 correspond to each other along the axial direction of the rotating rings 22. Both ends of the clamping member 3 are hinged to the middle of two corresponding mounting support plates 222 on the two rotating rings 22. It should be noted that the distance between the centers of the mounting support plates 222 between the rotating rings 22 is sufficient for the clamping member 3 to rotate. The upper end of the clamping member 3 is hinged to the center of the mounting support plate 222, so that its center of gravity can be below, realizing that during the rotation process, the clamping member 3 can rotate and tilt along the hinge. When the clamping member 3 revolves to the right side of the heater 11 together with the rotating ring 22, the left side of the material on the clamping member 3 is close to the heat source. When the clamping member 3 revolves below the heater 11, the upper end of the material on the clamping member 3 is close to the heat source. When the clamping member 3 revolves to the left side of the heater 11, the right end of the material on the clamping member 3 is close to the heat source. When the clamping member 3 revolves above the heater 11, the lower end of the material on the clamping member 3 is close to the heat source. During the revolution process, the material can be evenly heated in multiple directions to ensure the carbonization quality.

[0039] The clamping member 3 includes a supporting bracket 32, a first clamping plate 33 and a second clamping plate 34. The first clamping plate 33 and the second clamping plate 34 are symmetrically arranged on the supporting bracket 32, and the first clamping plate 33 and the second clamping plate 34 are connected to the supporting bracket 32 through springs and limiting rods. A limiting seat is arranged on the supporting bracket 32. Both ends of the first clamping plate 33 and the second clamping plate 34 are provided with limiting blocks. The limiting blocks are arranged in the sliding grooves of the limiting seat, and springs and limiting rods are arranged in the sliding grooves. The springs squeeze the first clamping plate 33 and the second clamping plate 34 to make them approach each other. When the cylinder containing the material to be dried is placed between the first clamping plate 33 and the second clamping plate 34, the first clamping plate 33 and the second clamping plate 34 clamp the surface of the cylinder under the action of the springs, improving the clamping stability. Relying on the telescopic ability of the springs, it can adapt to cylinders of different sizes for clamping. The upper ends of the first clamping plate 33 and the second clamping plate 34 are in an inclined shape, which increases the opening distance between the upper ends of the first clamping plate 33 and the second clamping plate 34, facilitating the placement of the cylinder.

[0040] Embodiment 2: This is the second embodiment of the present invention. This embodiment provides a method for drying high-insulation foam carbon, including the following steps:

[0041] S1: Mix the carbon source powder with water containing a pore-forming agent and stir it into a solid-liquid mixed state. Then put the solid-liquid mixed material into a placement container, and then place the container into the drying furnace body 1 for preheating;

[0042] S2: Raise the temperature inside the drying furnace body 1 to 180 - 350 °C, preheat the shaped material for 10 - 120 min, remove the moisture in the material, and make it foam and set. After foaming and setting, continue to raise the furnace temperature to 210 °C for pretreatment, keep it warm for 45 min, which can remove the moisture and oxidize and remove the easily oxidized elements;

[0043] S3: After preheating, ensure the sealing state of the drying furnace body 1. After adjusting the drying furnace body 1 to a vacuum state, observe the internal situation, and then fill nitrogen or inert gas into the drying furnace body 1;

[0044] S4: Under vacuum conditions and protected by nitrogen or inert gas, raise the temperature inside the drying furnace body 1 to 1000 - 2000 °C, and carbonize the foamed and set material for 1 - 60 min;

[0045] S5: During the treatment process, the driving part 24 drives the annular plate 23 to move. The clamping blocks 231 at both ends of the annular plate 23 are limited and slide by the sliding groove 13. The fixed ring 21 moves to drive the rotating ring 22 to move. The rotating ring 22 follows the guide rod 221 and spirally moves in the spiral groove 121, thereby driving the clamping part 3 to rotate together;

[0046] S6: Realize that during the rotation process, the clamping part 3 can rotate and tilt along the hinge. When the clamping part 3 rotates and revolves to the right side of the heater 11 together with the rotating ring 22, the left side of the material on the clamping part 3 is close to the heat source. When the clamping part 3 revolves to the lower side of the heater 11, the upper end of the material on the clamping part 3 is close to the heat source. When the clamping part 3 revolves to the left side of the heater 11, the right end of the material on the clamping part 3 is close to the heat source. When the clamping part 3 revolves to the upper side of the heater 11, the lower end of the material on the clamping part 3 is close to the heat source. During the process of revolution, the material can be evenly heated in all directions;

[0047] S7: Finally, cool under vacuum, nitrogen or inert gas protection to obtain the foam carbon.

[0048] The carbon source powder is any one or two or more of flour, corn flour, glutinous rice flour or rice flour. The amount of the pore-forming agent is 1 - 180 g / kg of the carbon source powder. The pore-forming agent is any one or two or more of biological fungus pore-forming agents, organic matter pore-forming agents or inorganic compound pore-forming agents. And when the pore-forming agent contains biological fungus pore-forming agents or organic matter pore-forming agents, before stirring into a solid-liquid mixed state, the temperature is controlled at 0 - 38 °C, and after forming the mixed state, it is left to ferment at 40 - 42 °C for 0.5 - 3 hours.

[0049] The biological fungus pore-forming agent is one or more of yeast and yogurt; the organic matter pore-forming agent is one or more of white sugar, honey, milk, alcohol or white liquor; the inorganic compound pore-forming agent is one or more of sodium carbonate, calcium carbonate, sodium bicarbonate, calcium bicarbonate, ammonium carbonate, ammonium bicarbonate, potassium carbonate, potassium bicarbonate or magnesium carbonate.

[0050] The foam carbon reinforced by alumina ceramic fibers prepared by the above method ensures the quality of the foam carbon and improves the compressive strength.

[0051] Example 3: Refer to Figure 7 - Figure 8 , which is the third embodiment of the present invention. This embodiment is different from the first embodiment. During the implementation of the first embodiment, it is found that the clamping member 3 can rotate and tilt along the hinge. However, due to the movable connection at the hinge, the connection is not restricted. During the revolution, it is too movable, which easily causes the clamping member 3 to shake back and forth. When the shaking degree is too large, it is easy for the material to overflow, and the stability during revolution is not high, which also easily causes deformation at the hinge and affects the later rotation flexibility.

[0052] To solve the above problems, in this embodiment, the outer side of the fixing ring 21 is respectively connected with a first half-ring 211 and a second half-ring 212 through two support plates. A speed reducer is installed on the installation support plate 222. The output shaft at one end of the speed reducer is sleeved with a driving gear 2221. An inner arc-shaped rack 2111 is arranged on the inner wall of the first half-ring 211, and an outer arc-shaped rack 2121 is arranged on the outer wall of the second half-ring 212. The driving gear 2221 is intermittently engaged with the inner arc-shaped rack 2111 and the outer arc-shaped rack 2121 respectively. The shaft rod on one side of the clamping member 3 is connected to the output shaft at the other end of the speed reducer. Through the inner arc-shaped rack 2111 and the outer arc-shaped rack 2121 arranged on the first half-ring 211 and the second half-ring 212, when the installation support plate 222 rotates, the driving gear 2221 is driven to rotate together. When the driving gear 2221 is in a vertical state and rotates from above the heater 11 to the right side of the heater 11, the driving gear 2221 is engaged with the outer arc-shaped rack 2121, thereby driving the driving gear 2221 to rotate clockwise. The speed reducer changes its rotation speed. When the driving gear 2221 is displaced to the right side directly below the heater 11, the speed reducer drives the shaft rod on one side of the clamping member 3 to rotate clockwise by 90°. When the driving gear 2221 is displaced to directly below the heater 11, the driving gear 2221 is still driven by the outer arc-shaped rack 2121, and the speed reducer drives the clamping member 3 to rotate clockwise by 90° again. When the driving gear 2221 is displaced to the left side directly below the heater 11, the driving gear 2221 is engaged with the inner arc-shaped rack 2111 and is driven to rotate counterclockwise by the inner arc-shaped rack 2111, thereby driving the clamping member 3 to rotate counterclockwise by 90°. When the driving gear 2221 rotates one circle around the heater 11, while the clamping member 3 rotates one circle around the heater 11, driven by the speed reducer, the clamping member 3 can always adjust its inclination state to ensure that it is always in a vertical state during the rotation process and is limited by the gear. During the rotation process of the clamping member 3, it will not shake back and forth, realizing stable adjustment, avoiding material overflow caused by shaking, and improving the stability of driving.

[0053] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A foam carbon drying device with high heat insulation, comprising a drying furnace body (1) with furnace covers hermetically connected to both ends, characterized in that, A heater (11) is coaxially arranged inside the drying furnace body (1). A limiting sleeve (12) is sleeved outside the heater (11). A moving member (2) capable of reciprocating along its axis is sleeved on the limiting sleeve (12). A spiral groove (121) is arranged on the limiting sleeve (12). The moving member (2) is in mating insertion connection with the spiral groove (121). While moving on the limiting sleeve (12), the moving member (2) rotates around the spiral groove (121). A plurality of clamping members (3) for placing materials are arranged on the moving member (2). The clamping members (3) are hinged to the moving member (2) through bearing members (31). While following the moving member (2) to revolve around the limiting sleeve (12), the clamping members (3) can rotate around the hinged ends of the bearing members (31) so that the clamping members (3) are always in a vertical state. The moving member (2) includes a fixed ring (21), a rotating ring (22), an annular plate (23) and a driving member (24). Two clamping blocks (231) are arranged on the outer wall of the annular plate (23). A sliding groove (13) for limiting the sliding of the two clamping blocks (231) is formed on the inner wall of the drying furnace body (1). The driving member (24) is connected to the annular plate (23) and drives the annular plate (23) to move. The fixed ring (21) is connected to the annular plate (23). One end of the fixed ring (21) is connected to the rotating ring (22) through a bearing. The fixed ring (21) and the rotating ring (22) are sleeved on the limiting sleeve (12). A guiding rod (221) is arranged on the inner wall of the rotating ring (22). The guiding rod (221) is inserted into the spiral groove (121). There are two rotating rings (22). A plurality of mounting support plates (222) are annularly arranged on the outer surfaces of the two rotating rings (22). The mounting support plates (222) on the two rotating rings (22) correspond to each other along the axis direction of the rotating ring (22). Two support plates are respectively connected to the outside of the fixed ring (21) to connect a first half ring (211) and a second half ring (212). A speed reducer is installed on the mounting support plate (222). A driving gear (2221) is sleeved on the output shaft at one end of the speed reducer. An inner arc-shaped rack (2111) is arranged on the inner wall of the first half ring (211). An outer arc-shaped rack (2121) is arranged on the outer wall of the second half ring (212). The driving gear (2221) is intermittently engaged with the inner arc-shaped rack (2111) and the outer arc-shaped rack (2121) respectively. The shaft rod on one side of the clamping member (3) is connected to the output shaft at the other end of the speed reducer.

2. The high heat-insulating foam carbon drying device according to claim 1, wherein Both ends of the clamping member (3) are respectively hinged to the middle parts of two corresponding mounting support plates (222) on the two rotating rings (22).

3. The high heat-insulating foam carbon drying device according to claim 2, characterized in that, The clamping member (3) includes a supporting bracket (32), a first clamping plate (33) and a second clamping plate (34). The first clamping plate (33) and the second clamping plate (34) are symmetrically arranged on the supporting bracket (32). The first clamping plate (33) and the second clamping plate (34) are connected to the supporting bracket (32) through springs and limiting rods.

4. A method for drying foam carbon with high heat insulation, which is applied to the high heat insulation foam carbon drying device described in claim 3, and is characterized in that, It includes the following steps: S1: Mix the carbon source powder with water containing a pore-forming agent and stir to form a solid-liquid mixture state. Then put the material in the solid-liquid mixture state into a placement container, and place the container into the drying furnace body (1) for preheating. S2: Raise the temperature in the drying furnace body (1) to 180 - 350 °C, conduct preheating treatment on the shaped material for 10 - 120 minutes, and discharge the moisture in the material. S3: After preheating, ensure the sealing state of the drying furnace body (1). After adjusting the drying furnace body (1) to a vacuum state, observe the internal situation, and fill nitrogen or inert gas into the drying furnace body (1). S4: Under vacuum conditions and protected by nitrogen or inert gas, raise the temperature in the drying furnace body (1) to 1000 - 2000 °C, conduct carbonization treatment on the material for 1 - 60 minutes, and then cool it under vacuum, nitrogen or inert gas protection to obtain the foam carbon.

5. A method for drying foam carbon with high heat insulation according to claim 4, characterized in that, The carbon source powder is any one or two or more of flour, corn flour, glutinous rice flour or rice flour. The amount of the pore-forming agent is 1 - 180 g per kilogram of the carbon source powder. The pore-forming agent is any one or two or more of biological fungus pore-forming agents, organic matter pore-forming agents or inorganic compound pore-forming agents. And when the pore-forming agent contains biological fungus pore-forming agents or organic matter pore-forming agents, before stirring into a solid-liquid mixture state, the temperature is controlled at 0 - 38 °C, and after forming a mixture state, it is left to ferment at 40 - 42 °C for 0.5 - 3 hours.

6. A method for drying foam carbon with high heat insulation according to claim 5, characterized in that, The biological fungus pore-forming agent is one or two or more of yeast and yogurt; the organic matter pore-forming agent is one or two or more of white sugar, honey, milk, alcohol or white liquor; the inorganic compound pore-forming agent is one or two or more of sodium carbonate, calcium carbonate, sodium bicarbonate, calcium bicarbonate, ammonium carbonate, ammonium bicarbonate, potassium carbonate, potassium bicarbonate or magnesium carbonate.

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