Rotary heat storage incinerator

Abstract

The rotary type heat storage incinerator comprises a shell, an air inlet, an air outlet and a rotary incineration mechanism, the air inlet is formed in the side wall of the shell, the air outlet is formed in the side, away from the air inlet, of the shell, and the rotary incineration mechanism is arranged in an inner cavity of the shell. The rotary incineration mechanism comprises a cover body, a driving motor, a driving gear, a rack, a driven gear, a first transmission shaft, a secondary gear, a second transmission shaft, a heat insulation plate, a baffle, an incineration table, an isolation column, a combustion opening, a protection cover and a limiting column. According to the rotary heat storage incinerator, the combustion contact surface and the air inlet amount of objects in the rotary incineration mechanism are increased, meanwhile, three sets of combustion parts are arranged, then the workload is increased, a heat conduction pipe is arranged in an inner cavity of the incinerator, and therefore the interior of the heat storage incinerator has the functions of rapid temperature rising and heat preservation, and the heat storage incinerator is convenient to use. And therefore, objects in the inner cavity of the heat storage incinerator can be conveniently combusted or fuel can be fully carbonized.

Description

Technical Field

[0001] The utility model relates to the technical field of incinerator equipment, in particular to a rotary heat storage incinerator. Background Art

[0002] The regenerative thermal incinerator (RTO) is a special type of incinerator that recovers the heat energy generated by combustion and improves fuel utilization. It is widely used in petrochemical, paint production, printing, electronic components, pesticides, medicine and other industries to treat organic waste gas concentrations of 100PPM-20000PPM of odor, CO and waste gas containing triphenyl, alcohol, ether, aldehyde, ketone, phenol, ester, naphthalene, benzopyrene and other components;

[0003] For example, application number CN202020452537.2 discloses a heat storage incinerator, which is connected to the fan by a branch pipe, and then the fan can blow the rotor, and then the rotor can allow the exhaust gas to enter the outlet through the inner net, so that the exhaust gas can be scattered under the action of the rotor, and then the scattered exhaust gas can be filtered and discharged through the inner net; however, when using the incinerator, it mainly utilizes the combustion of fuels such as coal, oil, and gas to incinerate and carbonize the objects to be treated at high temperature, among which the heat storage incinerator is one of the above-mentioned incinerators, but the above-mentioned device cannot fully incinerate the objects to be treated, and cannot preheat the objects to be treated in advance, thereby reducing the utilization rate of the thermal efficiency of the heat storage incinerator.

[0004] Therefore, in view of this, the existing structure and defects are studied and improved, and a rotary heat storage incinerator is proposed to achieve a more practical purpose. Utility Model Content

[0005] The utility model aims to provide a rotary heat storage incinerator to solve the problem in the above background technology that objects and fuel in the inner cavity of the heat storage incinerator can be fully burned or carbonized.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a rotary heat storage incinerator, comprising a shell, an air inlet, an air outlet and a rotary incineration mechanism, wherein the air inlet is installed on the side wall of the shell, and the air outlet is installed on the side of the shell away from the air inlet, the inner cavity of the shell is provided with a rotary incineration mechanism, the rotary incineration mechanism comprises a cover body and a driving motor, the cover body is installed on one side of the shell, and the inner cavity of the cover body is provided with a driving motor, a driving gear is provided at the output shaft of the output end of the driving motor, and the driving gear is connected to a driven gear through a rack, and the driven gear The wheel is installed on the outer diameter surface of the first transmission shaft, and a secondary gear is arranged at one end of the first transmission shaft, three groups of secondary gears are arranged, and the three groups of secondary gears are gear-meshingly connected, the secondary gear is installed on the outer diameter surface of the second transmission shaft, and a heat insulation board is arranged at one end of the second transmission shaft, a baffle is arranged at the edge of the heat insulation board, and an incineration table is arranged above the heat insulation board, an isolation column is arranged at the edge of the upper end surface of the incineration table, and a combustion port is longitudinally installed on the upper end surface of the incineration table, the rack is wrapped by a protective cover, and the first transmission shaft and the second transmission shaft are both installed on the limiting column.

[0007] Furthermore, hydraulic telescopic rods are provided on both sides of the shell, and the telescopic ends of the hydraulic telescopic rods are provided with cover plates, the edges of the cover plates are fixedly connected to the upper end surface of the shell through a rotating shaft, a fuel port is provided at the lower right side of the air outlet, a discharge port is provided at the bottom end surface of the shell, and supporting feet are provided at the four corners of the bottom end surface of the shell, a heat conduction pipe is provided on the side wall of the inner cavity of the shell, and a guide plate is provided at the opening of the upper end surface of the shell.

[0008] Furthermore, the driving gear forms a gear transmission structure through a rack and a driven gear, the driven gear forms a shaft transmission structure through a first transmission shaft and a secondary gear, and the three groups of secondary gears form a gear transmission structure.

[0009] Furthermore, the upper end surface of the incineration table is conical, and the isolation columns are provided in several groups, and the isolation columns are arranged equidistantly around the center of the incineration table. The first transmission shaft and the second transmission shaft on the bottom end surface of the incineration table are both limitedly connected to the limiting columns through bearings, and the first transmission shaft and the second transmission shaft are fixedly connected to the inner diameter surface of the bearing, and the limiting column is fixedly connected to the outer diameter surface of the bearing. The first transmission shaft and the second transmission shaft form a rotating structure that rotates around the bearing center through the bearing and the limiting column.

[0010] Furthermore, the caliber of the guide plate is the same as that of the incineration station, the heat insulation plate is specifically a circular plate made of compressed asbestos and rock wool, the combustion port is connected to the fuel port, and a lighter is provided between the combustion port and the fuel port, and the lighter is specifically installed in the heat insulation plate.

[0011] Furthermore, the cover plate is fixedly connected to the inner diameter surface of the rotating shaft, the outer diameter surface of the rotating shaft is fixedly connected to the shell, and the cover plate and the shell form a rotating structure that rotates around the center of the rotating shaft through the rotating shaft. The heat-conducting pipe is specifically cast from a copper pipe, and a plurality of groups of heat-conducting pipes are arranged equidistantly in the inner cavity of the shell, and the heat-conducting pipe is specifically located below the limiting column.

[0012] Compared with the prior art, the utility model has the following beneficial effects: the rotary heat storage incinerator increases the combustion contact surface and the air intake of the objects in the rotary incineration mechanism, thereby fully burning or carbonizing the objects and fuel in the inner cavity of the heat storage incinerator, and is provided with three groups of combustion parts, thereby increasing the workload, and a heat conducting pipe is provided in the inner cavity of the incinerator, so that the interior of the heat storage incinerator has the function of rapid heating and heat preservation, thereby facilitating the combustion of the objects in the inner cavity of the heat storage incinerator or fully carbonizing the fuel;

[0013] The rotary heat storage incinerator carbonizes objects through a rotating incineration mechanism, wherein a driving motor in the inner cavity of the cover body drives a driving gear to rotate, and then the driving gear drives a driven gear to rotate through a rack, and the driven gear uses a first transmission shaft and a secondary gear for shaft transmission, so as to finally rotate the secondary gear, and because three groups of secondary gears are provided, and a gear meshing structure is formed between the three groups of secondary gears, the secondary gear is finally rotated, and the secondary gear rotates around the center of the second transmission shaft, so as to drive the incineration table to rotate, thereby carbonizing the object, and a baffle is installed at the edge of the incineration table to prevent the carbonized object from affecting the rotation of the secondary gear, and a heat insulation plate is installed to prevent the temperature of the secondary gear Too high, so that the temperature of the secondary gear is too high, affecting the rotation of the secondary gear, and the first transmission shaft and the second transmission shaft are both limitedly installed on the limit column to support the incineration table and the object to be carbonized, and a protective cover is provided to protect the rack to prevent the rack temperature from being too high and affecting the transmission of the rack. The upper end surface of the incineration table is equidistantly installed with a plurality of groups of isolation columns to support the object to be carbonized, and the upper end surface of the incineration table is longitudinally installed with a combustion port so that the fuel burns from the incineration table, which is convenient for heating and carbonizing the object to be carbonized. The above structure increases the workload, and because the combustion port is located directly below the object to be carbonized, the object is fully burned, thereby achieving the effect of fully carbonizing the object;

[0014] The rotary heat storage incinerator controls the opening and closing of the cover plate through a hydraulic telescopic rod. When the hydraulic telescopic rod is extended, the contact surface between the hydraulic telescopic rod and the cover plate is provided with a bearing, thereby driving the cover plate to move. At this time, the cover plate rotates around the center of the rotating shaft through the rotating shaft and the shell, so as to open the cover plate, and then feed the material into the inner cavity of the shell, and the object will flow along the guide plate to the top of the incineration table. At the same time, the isolation column limits the object, and the input end and output end of the air inlet and the air outlet are respectively connected to an air intake pump and an air extraction pump, so that the fuel can be fully burned, and it is convenient to carbonize the object. The fuel port is connected to a fuel tank, and the fuel port is connected to the combustion port so that the fuel can be transported to the combustion port through the fuel port, and then the object is heated, burned and carbonized. In the process of heating, burning and carbonizing the object, the heat pipe is heated, which can not only ensure the uniformity of the temperature of the inner cavity of the shell, which is beneficial to the heating, burning and carbonization of the object, but also ensure that when feeding into the shell, the heat loss rate is slowed down, and the temperature of the inner cavity of the shell is quickly increased, and then the object is heated, burned and carbonized. Finally, the waste after the object is heated, burned and carbonized is discharged from the discharge port so that the waste can be collected centrally. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the front view structure of a rotary heat storage incinerator of the utility model;

[0016] Figure 2 This is a right view structural diagram of a rotary heat storage incinerator of the utility model;

[0017] Figure 3 This is a left-side structural schematic diagram of a rotary heat storage incinerator of the utility model;

[0018] Figure 4 This is a front view structural diagram of a rotary incineration mechanism of a rotary heat storage incinerator of the utility model;

[0019] Figure 5 This is a schematic diagram of the front section structure of a rotary incineration mechanism of a rotary heat storage incinerator of the utility model;

[0020] Figure 6 This is a schematic diagram of the top view of the heat transfer pipe of a rotary heat storage incinerator of the utility model;

[0021] Figure 7 The utility model is a schematic diagram of the top view of the guide plate of the rotary heat storage incinerator.

[0022] In the figure: 1. shell; 2. air inlet; 3. air outlet; 4. rotary incineration mechanism; 401. cover; 402. drive motor; 403. driving gear; 404. rack; 405. driven gear; 406. first transmission shaft; 407. secondary gear; 408. second transmission shaft; 409. heat insulation board; 4010. baffle; 4011. incineration table; 4012. isolation column; 4013. combustion port; 4014. protective cover; 4015. limit column; 5. hydraulic telescopic rod; 6. cover plate; 7. rotating shaft; 8. fuel port; 9. discharge port; 10. heat pipe; 11. guide plate. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] See also Figures 1 to 7The utility model provides a technical solution: a rotary heat storage incinerator, comprising a shell 1, an air inlet 2, an air outlet 3 and a rotary incineration mechanism 4, the air inlet 2 is installed on the side wall of the shell 1, and the air outlet 3 is installed on the side of the shell 1 away from the air inlet 2, the inner cavity of the shell 1 is provided with a rotary incineration mechanism 4, the rotary incineration mechanism 4 comprises a cover body 401 and a driving motor 402, the cover body 401 is installed on one side of the shell 1, and the inner cavity of the cover body 401 is provided with a driving motor 402, a driving gear 403 is provided at the output shaft of the output end of the driving motor 402, and the driving gear 403 is connected to a driven gear 405 through a rack 404, the driven gear 405 is installed on the outer diameter surface of a first transmission shaft 406, and a secondary gear 407 is provided at one end of the first transmission shaft 406, the secondary gear 407 is provided with three groups, and the three groups of secondary gears 407 are gear-meshed and connected, and the secondary gear 407 is installed on the outer diameter surface of a second transmission shaft 408 The second transmission shaft 408 has a heat shield 409 at one end, a baffle 4010 at the edge of the heat shield 409, and a burning platform 4011 is arranged above the heat shield 409. An isolation column 4012 is arranged at the edge of the upper end surface of the burning platform 4011, and a combustion port 4013 is longitudinally installed on the upper end surface of the burning platform 4011. The rack 404 is wrapped by a protective cover 4014. The first transmission shaft 406 and the second transmission shaft 408 are both installed Installed on the limit column 4015, hydraulic telescopic rods 5 are arranged on both sides of the shell 1, and the telescopic ends of the hydraulic telescopic rods 5 are arranged with cover plates 6, the edge of the cover plate 6 is fixedly connected to the upper end surface of the shell 1 through a rotating shaft 7, a fuel port 8 is arranged at the lower right of the air outlet 3, a discharge port 9 is arranged on the bottom end surface of the shell 1, and supporting feet are arranged at the four corners of the bottom end surface of the shell 1, a heat conduction pipe 10 is arranged on the side wall of the inner cavity of the shell 1, and a guide plate 11 is arranged at the opening of the upper end surface of the shell 1;

[0025] The object is carbonized by using a rotating incineration mechanism 4, wherein a driving motor 402 in the inner cavity of a cover body 401 drives a driving gear 403 to rotate, and then the driving gear 403 drives a driven gear 405 to rotate by using a rack 404, and the driven gear 405 is axially transmitted with a secondary gear 407 through a first transmission shaft 406, so that the secondary gear 407 is finally rotated, and since three groups of secondary gears 407 are provided, and a gear meshing structure is formed between the three groups of secondary gears 407, the secondary gear 407 is finally rotated, and the secondary gear 407 rotates around the center of the second transmission shaft 408, so as to drive the incineration table 4011 to rotate, so as to facilitate the carbonization of the object, and a baffle 4010 is installed at the edge of the incineration table 4011 to prevent the carbonized object from affecting the rotation of the secondary gear 407, and a heat insulation plate 409 is installed to prevent the temperature of the secondary gear 407 The temperature of the secondary gear 407 is too high, which affects the rotation of the secondary gear 407. One ends of the first transmission shaft 406 and the second transmission shaft 408 are both limitedly installed on the limit column 4015 to support the burning platform 4011 and the object to be carbonized. At the same time, a protective cover 4014 is provided to protect the rack 404 to prevent the rack 404 from being too hot and affecting the transmission of the rack 404. A plurality of groups of isolation columns 4012 are equidistantly installed on the upper end surface of the burning platform 4011 to support the object to be carbonized. At the same time, a combustion port 4013 is longitudinally installed on the upper end surface of the burning platform 4011 so that the fuel burns from the burning platform 4011, which is convenient for heating and carbonizing the object to be carbonized. The above structure is used to increase the combustion amount. At the same time, since the combustion port 4013 is located directly below the object to be carbonized, the object can be fully burned to achieve the effect of fully carbonizing the object.

[0026] The hydraulic telescopic rod 5 is used to control whether the cover plate 6 is opened or closed, because the contact surface between the hydraulic telescopic rod 5 and the cover plate 6 is provided with a bearing, wherein when the hydraulic telescopic rod 5 is extended, the cover plate 6 is driven to move, and at this time, the cover plate 6 rotates around the center of the rotating shaft 7 with the shell 1 through the rotating shaft 7, so as to open the cover plate 6, and then feed the material into the inner cavity of the shell 1, and the object will flow along the guide plate 11 to the top of the incineration table 4011, and the isolation column 4012 will limit the object, and at this time, the object is located on the upper end surface of the incineration table 4011, and the input end and output end of the air inlet 2 and the air outlet 3 are respectively connected with an air intake pump and an air extraction pump, so that the fuel and the object are fully burned, and at the same time, it is convenient The object is carbonized, and the fuel port 8 is externally connected to a fuel tank. Since the fuel port 8 is connected to the combustion port 4013, the fuel port 8 can be used to transport the fuel to the combustion port 4013, and then the object is heated, burned and carbonized. In the process of heating, burning and carbonizing the object, the heat pipe 10 is heated, which can ensure the uniformity of the temperature of the inner cavity of the shell 1, which is conducive to heating, burning and carbonizing the object, and can also ensure that when feeding into the shell 1, the heat loss rate is slowed down, so as to quickly increase the temperature of the inner cavity of the shell 1, heat, burn and carbonize the object, and finally discharge the waste after the object is heated, burned and carbonized from the discharge port 9, so as to collect the waste in a centralized manner;

[0027] The driving gear 403 forms a gear transmission structure with the driven gear 405 through the rack 404, and the driven gear 405 forms a shaft transmission structure with the secondary gear 407 through the first transmission shaft 406. The three groups of secondary gears 407 form a gear transmission structure. The upper end surface of the incineration table 4011 is conical, and a plurality of isolation columns 4012 are provided, and the isolation columns 4012 are arranged equidistantly around the center of the incineration table 4011. The first transmission shaft 406 and the second transmission shaft 408 on the bottom end surface of the incineration table 4011 are both limitedly connected with the limiting column 4015 through the bearing, and the first transmission shaft 406 and the second transmission shaft 408 are fixedly connected with the inner diameter surface of the bearing, and the limiting column 4015 is fixedly connected with the outer diameter surface of the bearing. The first transmission shaft 406 and the second transmission shaft 408 form a rotating structure rotating around the center of the bearing through the bearing and the limiting column 4015;

[0028] The caliber of the guide plate 11 is the same as that of the incineration table 4011. The insulation plate 409 is specifically a circular plate made of compressed asbestos and rock wool. The combustion port 4013 is connected to the fuel port 8, and a lighter is arranged between the combustion port 4013 and the fuel port 8, and the lighter is specifically installed in the insulation plate 409. The cover plate 6 is fixedly connected to the inner diameter surface of the rotating shaft 7, and the outer diameter surface of the rotating shaft 7 is fixedly connected to the shell 1. The cover plate 6 forms a rotating structure that rotates around the center of the rotating shaft 7 with the shell 1 through the rotating shaft 7. The heat pipe 10 is specifically cast from a copper pipe, and a plurality of groups of heat pipes 10 are arranged, and the heat pipes 10 are equidistantly arranged in the inner cavity of the shell 1, and the heat pipes 10 are specifically located below the limiting column 4015.

[0029] Working principle: When using a rotary heat storage incinerator, the cover plate 6 is first controlled to open and close through the hydraulic telescopic rod 5. Because the contact surface between the hydraulic telescopic rod 5 and the cover plate 6 is provided with a bearing, when the hydraulic telescopic rod 5 is extended, the cover plate 6 is driven to move. At this time, the cover plate 6 rotates around the center of the rotating shaft 7 with the shell 1 through the rotating shaft 7, so as to open the cover plate 6, and then feed the material into the inner cavity of the shell 1. The object will flow along the guide plate 11 to the top of the incineration table 4011. At the same time, the isolation column 4012 limits the object, and the incineration table The upper end surface of 4011 is equidistantly provided with a plurality of isolation columns 4012, so as to support the object to be carbonized. The driving motor 402 is started, and the driving motor 402 drives the driving gear 403 to rotate, and then the driving gear 403 drives the driven gear 405 to rotate through the rack 404, and the driven gear 405 uses the first transmission shaft 406 and the secondary gear 407 to perform shaft transmission, so as to finally rotate the secondary gear 407. Since the secondary gear 407 is provided with three groups, and the three groups of secondary gears 407 are formed between them, The gear meshing structure is formed, and finally the secondary gear 407 rotates, and the secondary gear 407 rotates around the center of the second transmission shaft 408, so as to drive the incineration table 4011 to rotate, and the first transmission shaft 406 and the second transmission shaft 408 are both limitedly installed on the limit column 4015, so as to support the incineration table 4011 and the object to be carbonized, and the fuel port 8 is externally connected with a fuel tank, and because the fuel port 8 is connected with the combustion port 4013, the fuel can be transported to the combustion port 4013 through the fuel port 8, so as to The fuel is burned from the incineration station 4011, and the input end and output end of the air inlet 2 and the air outlet 3 are respectively connected to an air intake pump and an air exhaust pump, so that the fuel can be fully burned. In the process of heating, burning and carbonizing the object, the heat pipe 10 is heated, which can not only ensure the uniformity of the temperature of the inner cavity of the shell 1, but also ensure that the heat loss rate is slowed down when feeding into the shell 1, so as to quickly increase the temperature of the inner cavity of the shell 1, heat, burn and carbonize the object, and finally discharge the waste after the object is heated, burned and carbonized from the discharge port 9.

Claims

1. A rotary heat storage incinerator, comprising a housing (1), an air inlet (2), an air outlet (3) and a rotary incineration mechanism (4), characterized in that: The air inlet (2) is mounted on a side wall of the shell (1), and an air outlet (3) is mounted on a side of the shell (1) away from the air inlet (2). A rotating incineration mechanism (4) is disposed in the inner cavity of the shell (1). The rotating incineration mechanism (4) comprises a cover body (401) and a drive motor (402). The cover body (401) is mounted on one side of the shell (1), and a drive motor (402) is disposed in the inner cavity of the cover body (401). A driving gear (403) is disposed at an output shaft at an output end of the drive motor (402), and the driving gear (403) is connected to a driven gear (405) via a rack (404). The driven gear (405) is mounted on an outer diameter surface of a first transmission shaft (406), and a secondary gear (407) is disposed at one end of the first transmission shaft (406). The secondary gears (407) are provided in three groups, and the three groups of the secondary gears (407) are meshedly connected with each other. The secondary gears (407) are mounted on the outer diameter surface of the second transmission shaft (408), and a heat insulation plate (409) is provided at one end of the second transmission shaft (408). A baffle (4010) is provided at the edge of the heat insulation plate (409), and an incineration platform (4011) is provided above the heat insulation plate (409). An isolation column (4012) is provided at the edge of the upper end surface of the incineration platform (4011), and a combustion port (4013) is longitudinally installed on the upper end surface of the incineration platform (4011). The rack (404) is wrapped by a protective cover (4014), and the first transmission shaft (406) and the second transmission shaft (408) are both mounted on a limiting column (4015).

2. A rotary thermal storage incinerator according to claim 1, characterized in that: Hydraulic telescopic rods (5) are provided on both sides of the shell (1), and a cover plate (6) is provided at the telescopic end of the hydraulic telescopic rod (5); the edge of the cover plate (6) is fixedly connected to the upper end surface of the shell (1) via a rotating shaft (7); a fuel port (8) is provided at the lower right side of the air outlet (3); a discharge port (9) is provided at the bottom end surface of the shell (1), and supporting feet are provided at the four corners of the bottom end surface of the shell (1); a heat conduction pipe (10) is provided on the side wall of the inner cavity of the shell (1); and a guide plate (11) is provided at the opening of the upper end surface of the shell (1).

3. A rotary thermal storage incinerator according to claim 2, characterized in that: The driving gear (403) forms a gear transmission structure with the rack (404) and the driven gear (405), the driven gear (405) forms a shaft transmission structure with the first transmission shaft (406) and the secondary gear (407), and the three groups of the secondary gears (407) form a gear transmission structure.

4. A rotary thermal storage incinerator according to claim 3, characterized in that: The upper end surface of the incineration table (4011) is conical, and the isolation columns (4012) are provided in a plurality of groups, and the isolation columns (4012) are arranged equidistantly around the center of the incineration table (4011). The first transmission shaft (406) and the second transmission shaft (408) on the bottom end surface of the incineration table (4011) are both limitedly connected to the limiting column (4015) through the bearing, and the first transmission shaft (406) and the second transmission shaft (408) are fixedly connected to the inner diameter surface of the bearing, and the limiting column (4015) is fixedly connected to the outer diameter surface of the bearing. The first transmission shaft (406) and the second transmission shaft (408) form a rotating structure that rotates around the bearing center through the bearing and the limiting column (4015).

5. A rotary thermal storage incinerator according to claim 4, characterized in that: The caliber of the guide plate (11) is the same as the caliber of the incineration platform (4011); the heat insulation plate (409) is specifically a circular plate made of compressed asbestos and rock wool; the combustion port (4013) is connected to the fuel port (8); and an igniter is provided between the combustion port (4013) and the fuel port (8), and the igniter is specifically installed in the heat insulation plate (409).

6. A rotary thermal storage incinerator according to claim 5, characterized in that: The cover plate (6) is fixedly connected to the inner diameter surface of the rotating shaft (7), and the outer diameter surface of the rotating shaft (7) is fixedly connected to the shell (1). The cover plate (6) and the shell (1) form a rotating structure that rotates around the center of the rotating shaft (7) through the rotating shaft (7). The heat conducting pipe (10) is specifically made of cast copper pipes, and a plurality of groups of heat conducting pipes (10) are provided. The heat conducting pipes (10) are equidistantly arranged in the inner cavity of the shell (1), and the heat conducting pipes (10) are specifically located below the limiting column (4015).

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