Rubber additive production and purification device

Abstract

The utility model relates to the technical field of rubber additive production, in particular to a rubber additive production and purification device, which purifies a rubber additive twice by utilizing an extraction method, removes large-particle impurities and impurities insoluble in a solvent in the rubber additive, improves the purity of the rubber additive and improves the production efficiency of the rubber additive. The heat is utilized for many times; comprising a separation mechanism; the device further comprises a centrifugal mechanism, a cooling mechanism, a stirring mechanism and a heating mechanism, the centrifugal mechanism is installed on the separation mechanism and cooperates with the separation mechanism to conduct centrifugal extraction on the rubber additive, the cooling mechanism is installed on the separation mechanism and conducts cooling recrystallization on a solution, and the stirring mechanism is installed on the cooling mechanism and dissolves the rubber additive in a solvent. The heating mechanism is mounted on the centrifugal mechanism and is used for heating the stirring mechanism.

Description

Technical Field

[0001] The utility model relates to the technical field of rubber additive production, in particular to a rubber additive production and purification device. Background Art

[0002] Rubber additives originate from the vulcanization of natural rubber. After more than 80 years of research, it was not until the 1920s and 1930s that rubber additives were basically formed with the industrialization of the basic varieties of vulcanization accelerators, 2-mercaptobenzothiazole and its sulfenamide derivatives, and p-phenylenediamine antioxidants.

[0003] Existing purification devices, such as a rubber additive production purification device disclosed in the utility model patent with application number 202022359071.4, have a main structure including a tank body, support legs are welded at the four corners of the bottom of the tank body, an annular slide groove is opened on the inner wall of the tank body, and four sliding blocks distributed at equal distances are embedded in the inner wall of the annular slide groove, the four sliding blocks are welded with fixing rods, and the four fixing rods are fixed to the same columnar net tube by screws, a gear ring is welded on the top of the outer wall of the columnar net tube, and the gear ring is meshed with a gear, and the bottom of the gear is connected to A micro motor is provided, and an annular block is welded on the outer wall of the top of the cylindrical net cylinder; when in use, first fix the device, then fix the sealing cover on the top of the tank body, and then pour the rubber additive that needs to be removed into the feed hopper, and the rubber additive will fall into the cylindrical net cylinder. At this time, start the micro motor and the servo motor respectively, the micro motor will drive the cylindrical net cylinder to rotate slowly, and the servo motor will drive the stirring rod to stir, so that the powdered particles of the rubber additive are screened out from the cylindrical net cylinder, and the screened rubber additive is discharged from the discharge pipe.

[0004] However, most of the existing rubber additive production and purification devices use solid-state purification, and it is likely that impurities will not be screened out cleanly only by particle size. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides a rubber additive production and purification device which utilizes an extraction method to purify the rubber additive twice, removes large particle impurities and impurities insoluble in solvents in the rubber additive, improves the purity of the rubber additive, and utilizes heat multiple times.

[0006] The utility model discloses a rubber additive production and purification device, comprising a separation mechanism; a centrifugal mechanism, a cooling mechanism, a stirring mechanism and a heating mechanism, wherein the centrifugal mechanism is installed on the separation mechanism and cooperates with the separation mechanism to centrifugally extract the rubber additive, the cooling mechanism is installed on the separation mechanism and cools down the solution for recrystallization, the stirring mechanism is installed on the cooling mechanism and dissolves the rubber additive in a solvent, and the heating mechanism is installed on the centrifugal mechanism and heats the stirring mechanism; the rubber additive and the solvent are mixed and poured into the stirring mechanism, and the mixture is heated and stirred, when the rubber solvent is completely dissolved in the solvent, the filtered solution enters the cooling mechanism, impurities insoluble in the solvent are filtered out, the solution is cooled in the cooling mechanism and rubber additive crystals are precipitated, and then the solution enters the centrifugal mechanism, the centrifugal mechanism rotates at a high speed to separate the solvent and the rubber additive crystals, and clean rubber additive crystals are obtained, and at the same time, the hot air in the heating mechanism dries the rubber additive crystals, so as to facilitate subsequent storage.

[0007] Preferably, the separation mechanism includes a bracket, a separation cylinder, a drain pipe, a valve, a sealing door and a handle. The bracket is installed on the ground, the bottom end of the separation cylinder is connected to the top end of the bracket, a separation chamber is provided inside the separation cylinder, the top end of the drain pipe is connected to the bottom end of the separation cylinder and communicates with the inside of the separation chamber of the separation cylinder, the valve is installed on the drain pipe, the sealing door is rotatably installed on the separation cylinder, and the handle is installed on the sealing door; when the separation is completed, the staff opens the valve to discharge the solvent in the separation chamber of the separation cylinder out of the device through the drain pipe to facilitate subsequent reuse, and then opens the sealing door through the handle to take out the rubber additive crystals in the centrifugal mechanism.

[0008] Preferably, the centrifugal mechanism includes a motor, a reducer, a transmission shaft, a centrifugal cylinder and a connecting sleeve, the bottom end of the motor is connected to the bottom end of the separation cylinder, the bottom end of the reducer is connected to the bottom end of the separation cylinder, the transmission shaft is rotatably installed in the separation chamber of the separation cylinder and is longitudinally connected to the reducer, the centrifugal cylinder is installed on the transmission shaft, a feed port is opened at the top of the separation cylinder, the connecting sleeve is installed in the separation chamber of the separation cylinder and is connected to the feed port at the top of the separation cylinder, and the bottom end of the connecting sleeve is rotatably connected to the centrifugal cylinder; the cooled solvent and the precipitated crystals enter the centrifugal cylinder through the connecting sleeve, the motor is started, the motor drives the transmission shaft to rotate through the reducer, the transmission shaft drives the centrifugal cylinder to rotate to generate centrifugal force, and the solvent is thrown out into the separation chamber of the separation cylinder.

[0009] Preferably, the cooling mechanism includes a cooling pipe, valve two, multiple groups of air inlet pipes and an air collecting box, the bottom end of the cooling pipe is connected to the top end of the separation cylinder, and the cooling pipe is connected to the feed port of the separation cylinder, valve two is installed on the cooling pipe, the multiple groups of air inlet pipes cross the cooling pipe, and the air collecting box is connected to the inside of the multiple groups of air inlet pipes; the stirred solution enters the cooling pipe, the heating mechanism is started to exhaust air, and the cold air enters the air collecting box through the multiple groups of air inlet pipes and gathers, the solution exchanges heat with the multiple groups of air inlet pipes, and while preheating the air in the air inlet pipe, the temperature of the solution is reduced, accelerating the precipitation of rubber additive crystals in the solution, and then valve two is opened, and the solvent and crystals enter the connecting sleeve.

[0010] Preferably, the stirring mechanism comprises a stirring barrel, a feeding pipe, a second motor, a second reducer, a second transmission shaft, a plurality of stirring rods and a filter screen, the bottom end of the stirring barrel is connected to the top end of the cooling tube, a stirring chamber is arranged inside the stirring barrel, a discharge port is opened at the bottom end of the stirring barrel and is communicated with the inside of the cooling tube, the bottom end of the feeding pipe is connected to the top end of the stirring barrel, and the feeding pipe is communicated with the inside of the stirring chamber of the stirring barrel, the bottom end of the second motor is connected to the top end of the stirring barrel, the bottom end of the second reducer is connected to the top end of the stirring barrel, the second transmission shaft is rotatably installed in the stirring chamber of the stirring barrel and is longitudinally connected to the second reducer, a plurality of stirring rods are all installed on the second transmission shaft, and the filter screen is installed in the stirring chamber of the stirring barrel; the unpurified rubber additive and the solvent are poured into the feeding pipe together, and enter the stirring chamber of the stirring barrel through the feeding pipe, the second motor is started, the second motor drives the second transmission shaft and the stirring rod to rotate through the second reducer to stir the solution, accelerate the dissolution of the rubber additive into the solvent, and then enter the cooling tube through the filter screen, and large particles and insoluble impurities are filtered out by the filter screen.

[0011] Preferably, the heating mechanism includes a transmission shaft three, an air pump, an air extraction pipe, a heating box, multiple groups of electric heat resistance wires, a heat exchange tube, a nozzle and three valves. The transmission shaft three is rotatably mounted on a reducer one. The bottom end of the air pump is connected to the bottom end of the separation cylinder. One end of the air extraction pipe is connected to the air collecting box, and the other end is connected to the air pump. The top of the heating box is connected to the bottom end of the separation cylinder. A heating chamber is opened inside the heating box and is connected to the exhaust port of the air pump. Multiple groups of electric heat resistance wires are installed in the heating chamber of the heating box. One end of the heat exchange tube is connected to the inside of the heating box and is coiled around the outside of the mixing barrel. The other end of the tube is connected to the interior of the separation chamber of the separation cylinder. The nozzle is installed on the heat exchange tube and is located in the separation chamber of the separation cylinder. Valve three is installed on the heat exchange tube. Reducer one drives the air pump through transmission shaft three. The air pump extracts the preheated air in the air collecting box through the exhaust pipe, and then transports it to the heating box. In the heating box, it is further heated by multiple groups of electric heating wires and then transported to the heat exchange tube. The heat exchange tube heats the stirring barrel to increase the solubility of the solvent. Valve three is opened, and hot air is blown into the separation chamber of the separation cylinder through the nozzle to dry the separated crystals.

[0012] Compared with the prior art, the utility model has the following beneficial effects: the rubber additive and the solvent are mixed and poured into a stirring mechanism, which are heated and stirred. When the rubber solvent is completely dissolved in the solvent, the solution is filtered and enters a cooling mechanism, impurities insoluble in the solvent are filtered out, the solution is cooled in the cooling mechanism and rubber additive crystals are precipitated, and then enters a centrifugal mechanism, the centrifugal mechanism rotates at a high speed to separate the solvent and the rubber additive crystals, and clean rubber additive crystals are obtained. At the same time, the hot air in the heating mechanism dries the rubber additive crystals, which is convenient for subsequent storage. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a front view structural schematic diagram of the utility model;

[0014] Figure 2 It is a partially enlarged axonometric structural diagram of the separation mechanism of the utility model;

[0015] Figure 3 It is a partially enlarged front view cross-sectional structural schematic diagram of the centrifugal mechanism of the utility model;

[0016] Figure 4 It is a schematic diagram of the cross-sectional axonometric structure of the cooling mechanism, stirring mechanism and heating mechanism of the utility model;

[0017] Figure 5 It is an axonometric structural diagram of the stirring mechanism and the heating mechanism of the utility model.

[0018] Markings in the attached drawings: 01, separation mechanism; 11, bracket; 12, separation cylinder; 13, drain pipe; 14, valve one; 15, sealing door; 16, handle; 02, centrifugal mechanism; 21, motor one; 22, reducer one; 23, transmission shaft one; 24, centrifugal cylinder; 25, connecting sleeve; 03, cooling mechanism; 31, cooling pipe; 32, valve two; 33, air inlet pipe; 34, air collecting box; 04, stirring mechanism; 41, stirring barrel; 42, feeding pipe; 43, motor two; 44, reducer two; 45, transmission shaft two; 46, stirring rod; 47, filter; 05, heating mechanism; 51, transmission shaft three; 52, air pump; 53, exhaust pipe; 54, heating box; 55, electric heating resistance wire; 56, heat exchange pipe; 57, nozzle; 58, valve three. DETAILED DESCRIPTION

[0019] In order to facilitate the understanding of the utility model, the utility model will be described more comprehensively below with reference to the relevant drawings. The utility model can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the utility model more thorough and comprehensive.

[0020] Example 1

[0021] The utility model discloses a rubber additive production and purification device, comprising a separation mechanism 01; a centrifugal mechanism 02, a cooling mechanism 03, a stirring mechanism 04 and a heating mechanism 05, wherein the centrifugal mechanism 02 is installed on the separation mechanism 01 and cooperates with the separation mechanism 01 to centrifugally extract the rubber additive, the cooling mechanism 03 is installed on the separation mechanism 01 and cools the solution for recrystallization, the stirring mechanism 04 is installed on the cooling mechanism 03 and dissolves the rubber additive in the solvent, the heating mechanism 05 is installed on the centrifugal mechanism 02 and heats the stirring mechanism 04; the separation mechanism 01 comprises a bracket 11, a separation cylinder 12, a drain pipe 13, a valve 14, a sealing door 15 and a handle 16, the bracket 11 is installed on the ground, the separation mechanism 01 comprises ... The bottom end of the separation cylinder 12 is connected to the top end of the bracket 11, a separation chamber is arranged inside the separation cylinder 12, the top end of the drain pipe 13 is connected to the bottom end of the separation cylinder 12 and communicates with the inside of the separation chamber of the separation cylinder 12, a valve 14 is installed on the drain pipe 13, a sealing door 15 is rotatably installed on the separation cylinder 12, and a handle 16 is installed on the sealing door 15; the centrifugal mechanism 02 includes a motor 21, a reducer 22, a transmission shaft 23, a centrifugal cylinder 24 and a connecting sleeve 25, the bottom end of the motor 21 is connected to the bottom end of the separation cylinder 12, the bottom end of the reducer 22 is connected to the bottom end of the separation cylinder 12, the transmission shaft 23 is rotatably installed in the separation chamber of the separation cylinder 12 and is longitudinally connected to the reducer 22, the centrifugal cylinder 24 It is installed on the transmission shaft 23, and a feed port is provided at the top of the separation cylinder 12. The connecting sleeve 25 is installed in the separation chamber of the separation cylinder 12 and communicated with the feed port at the top of the separation cylinder 12. The bottom end of the connecting sleeve 25 is rotatably connected to the centrifugal cylinder 24. The cooling mechanism 03 includes a cooling pipe 31, a valve 2 32, multiple groups of air inlet pipes 33 and an air collecting box 34. The bottom end of the cooling pipe 31 is connected to the top of the separation cylinder 12, and the cooling pipe 31 is communicated with the feed port of the separation cylinder 12. The valve 2 32 is installed on the cooling pipe 31, and multiple groups of air inlet pipes 33 cross the cooling pipe 31. The air collecting box 34 is communicated with the inside of the multiple groups of air inlet pipes 33. The stirring mechanism 04 includes a stirring barrel 41, a feed pipe 42, a motor 2 43, a reducer 2 44 , a second transmission shaft 45, a plurality of groups of stirring rods 46 and a filter screen 47, the bottom end of the stirring barrel 41 is connected to the top end of the cooling pipe 31, a stirring chamber is arranged inside the stirring barrel 41, a discharge port is opened at the bottom end of the stirring barrel 41 and communicates with the inside of the cooling pipe 31, the bottom end of the feed pipe 42 is connected to the top end of the stirring barrel 41, and the feed pipe 42 is communicated with the inside of the stirring chamber of the stirring barrel 41, the bottom end of the second motor 43 is connected to the top end of the stirring barrel 41, the bottom end of the second reducer 44 is connected to the top end of the stirring barrel 41, the second transmission shaft 45 is rotatably installed in the stirring chamber of the stirring barrel 41 and is longitudinally connected to the second reducer 44, a plurality of groups of stirring rods 46 are all installed on the second transmission shaft 45, and the filter screen 47 is installed in the stirring chamber of the stirring barrel 41;When it is working, first pour the unpurified rubber additive and the solvent into the feed pipe 42 together, enter the stirring chamber of the stirring barrel 41 through the feed pipe 42, start the motor 43, and the motor 43 drives the transmission shaft 45 and the stirring rod 46 to rotate through the reducer 44 to stir the solution, thereby accelerating the dissolution of the rubber additive into the solvent. The solution passes through the filter 47 and enters the cooling pipe 31. Large particles of impurities and insoluble impurities are filtered out by the filter 47. Then the heating mechanism 05 is started to exhaust air, and the cold air enters the air collecting box 34 through the multiple groups of air intake pipes 33 and gathers. The solution exchanges heat with the multiple groups of air intake pipes 33, and while preheating the air in the air intake pipes 33, the temperature of the solution is reduced. degree, accelerate the precipitation of rubber additive crystals in the solution, then open valve 232, the solvent and crystals enter the connecting sleeve 25, the cooled solvent and precipitated crystals enter the centrifugal cylinder 24 through the connecting sleeve 25, start the motor 21, the motor 21 drives the transmission shaft 23 to rotate through the reducer 22, the transmission shaft 23 drives the centrifugal cylinder 24 to rotate to generate centrifugal force, and throws the solvent into the separation chamber of the separation cylinder 12. When the separation is completed, the staff opens valve 14, and the solvent in the separation chamber of the separation cylinder 12 is discharged from the device through the drain pipe 13, which is convenient for subsequent reuse, and then the sealing door 15 is opened by the handle 16 to take out the rubber additive crystals in the centrifugal cylinder 24. ;

[0022] Example 2

[0023] like Figures 1 to 5As shown, a rubber additive production and purification device of the utility model is based on Example 1; the heating mechanism 05 includes a transmission shaft 3 51, an air pump 52, an exhaust pipe 53, a heating box 54, multiple groups of electric thermal resistance wires 55, a heat exchange tube 56, a nozzle 57 and a valve 3 58, the transmission shaft 3 51 is rotatably mounted on the reducer 1 22, the bottom end of the air pump 52 is connected to the bottom end of the separation cylinder 12, one end of the exhaust pipe 53 is connected to the air collecting box 34, and the other end is connected to the air pump 52, the top of the heating box 54 is connected to the bottom end of the separation cylinder 12, the heating box 54 has a heating chamber inside and is connected to the exhaust port of the air pump 52, multiple groups of electric thermal resistance wires 55 are installed in the heating chamber of the heating box 54, one end of the heat exchange tube 56 is connected to the heating The interior of the box 54 is connected and coiled around the outside of the stirring barrel 41, the other end of the heat exchange tube 56 is connected to the interior of the separation chamber of the separation barrel 12, the nozzle 57 is installed on the heat exchange tube 56 and is located in the separation chamber of the separation barrel 12, and the valve three 58 is installed on the heat exchange tube 56; when it is working, firstly, the unpurified rubber additive and the solvent are poured into the feed pipe 42 together, and enter the stirring chamber of the stirring barrel 41 through the feed pipe 42, and the motor two 43 is started. The motor two 43 drives the transmission shaft two 45 and the stirring rod 46 to rotate through the reducer two 44 to stir the solution, accelerate the dissolution of the rubber additive into the solvent, and at the same time, the reducer one 22 drives the air pump 52 through the transmission shaft three 51, and the air pump 52 passes the exhaust pipe 53 to collect the air box 3 The preheated air in the tank 4 is extracted and then transported to the heating box 54, where it is further heated by multiple groups of electric heat resistance wires 55, and then transported to the heat exchange tube 56. The heat exchange tube 56 heats the stirring barrel 41 to increase the solubility of the solvent. The solution passes through the filter screen 47 and enters the cooling tube 31. Large particles of impurities and insoluble impurities are filtered out by the filter screen 47. Then the heating mechanism 05 is started to extract air, and the cold air enters the air collecting box 34 through multiple groups of air inlet pipes 33 and gathers. The solution exchanges heat with the multiple groups of air inlet pipes 33. While preheating the air in the air inlet pipes 33, the temperature of the solution is reduced, accelerating the precipitation of rubber additive crystals in the solution. Then the valve 2 32 is opened, and the solvent and crystals enter the connection In the sleeve 25, the cooled solvent and the precipitated crystals enter the centrifugal cylinder 24 through the connecting sleeve 25, and the motor 21 is started. The motor 21 drives the transmission shaft 23 to rotate through the reducer 22. The transmission shaft 23 drives the centrifugal cylinder 24 to rotate to generate centrifugal force, and the solvent is thrown into the separation chamber of the separation cylinder 12. When the separation is completed, the staff opens the valve 14, and the solvent in the separation chamber of the separation cylinder 12 is discharged from the device through the drain pipe 13 to facilitate subsequent reuse. The valve 3 58 is opened, and the hot air is blown into the separation chamber of the separation cylinder 12 through the nozzle 57 to dry the separated crystals. Then the sealing door 15 is opened through the handle 16 to take out the rubber additive crystals in the centrifugal cylinder 24.

[0024] The motor 21, reducer 22, motor 43, reducer 44 and air pump 52 of the utility model are purchased on the market. The technicians in this industry only need to install and operate them according to the accompanying instruction manual, without the need for the technicians in this field to make creative labor.

[0025] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A rubber additive production and purification device, comprising a separation mechanism (01); characterized in that: The invention also comprises a centrifugal mechanism (02), a cooling mechanism (03), a stirring mechanism (04) and a heating mechanism (05); the centrifugal mechanism (02) is installed on the separation mechanism (01) and cooperates with the separation mechanism (01) to centrifugally extract the rubber additive; the cooling mechanism (03) is installed on the separation mechanism (01) and cools the solution for recrystallization; the stirring mechanism (04) is installed on the cooling mechanism (03) and dissolves the rubber additive in the solvent; and the heating mechanism (05) is installed on the centrifugal mechanism (02) and heats the stirring mechanism (04).

2. A rubber additive production and purification device as claimed in claim 1, characterized in that: The separation mechanism (01) comprises a bracket (11), a separation cylinder (12), a liquid discharge pipe (13), a valve (14), a sealing door (15) and a handle (16); the bracket (11) is installed on the ground; the bottom end of the separation cylinder (12) is connected to the top end of the bracket (11); a separation chamber is arranged inside the separation cylinder (12); the top end of the liquid discharge pipe (13) is connected to the bottom end of the separation cylinder (12) and communicates with the inside of the separation chamber of the separation cylinder (12); the valve (14) is installed on the liquid discharge pipe (13); the sealing door (15) is rotatably installed on the separation cylinder (12); and the handle (16) is installed on the sealing door (15).

3. A rubber additive production and purification device as claimed in claim 2, characterized in that: The centrifugal mechanism (02) comprises a motor (21), a reducer (22), a transmission shaft (23), a centrifugal cylinder (24) and a connecting sleeve (25). The bottom end of the motor (21) is connected to the bottom end of the separation cylinder (12), the bottom end of the reducer (22) is connected to the bottom end of the separation cylinder (12), the transmission shaft (23) is rotatably mounted in a separation chamber of the separation cylinder (12) and is longitudinally connected to the reducer (22), the centrifugal cylinder (24) is mounted on the transmission shaft (23), a feed port is provided at the top end of the separation cylinder (12), the connecting sleeve (25) is mounted in the separation chamber of the separation cylinder (12) and is connected to the feed port at the top end of the separation cylinder (12), and the bottom end of the connecting sleeve (25) is rotatably connected to the centrifugal cylinder (24).

4. A rubber additive production and purification device as claimed in claim 2, characterized in that: The cooling mechanism (03) comprises a cooling pipe (31), a valve 2 (32), a plurality of air intake pipes (33) and an air collecting box (34); the bottom end of the cooling pipe (31) is connected to the top end of the separation cylinder (12), and the cooling pipe (31) is communicated with the feed port of the separation cylinder (12); the valve 2 (32) is installed on the cooling pipe (31), the plurality of air intake pipes (33) are transversely passed through the cooling pipe (31), and the air collecting box (34) is communicated with the interior of the plurality of air intake pipes (33).

5. A rubber additive production and purification device as claimed in claim 4, characterized in that: The stirring mechanism (04) comprises a stirring barrel (41), a feeding pipe (42), two motors (43), two reducers (44), two transmission shafts (45), a plurality of stirring rods (46) and a filter (47); the bottom end of the stirring barrel (41) is connected to the top end of the cooling pipe (31); a stirring chamber is arranged inside the stirring barrel (41); a discharge port is opened at the bottom end of the stirring barrel (41) and communicates with the inside of the cooling pipe (31); the bottom end of the feeding pipe (42) is connected to the top end of the stirring barrel (41); , and the feed pipe (42) is communicated with the inside of the stirring chamber of the stirring barrel (41), the bottom end of the second motor (43) is connected to the top end of the stirring barrel (41), the bottom end of the second reducer (44) is connected to the top end of the stirring barrel (41), the second transmission shaft (45) is rotatably installed in the stirring chamber of the stirring barrel (41) and is longitudinally connected to the second reducer (44), a plurality of groups of stirring rods (46) are installed on the second transmission shaft (45), and the filter screen (47) is installed in the stirring chamber of the stirring barrel (41).

6. A rubber additive production and purification device as claimed in claim 5, characterized in that: The heating mechanism (05) comprises a transmission shaft (51), an air pump (52), an air extraction pipe (53), a heating box (54), a plurality of sets of electric heat resistance wires (55), a heat exchange pipe (56), a nozzle (57) and a valve (58). The transmission shaft (51) is rotatably mounted on a reducer (22). The bottom end of the air pump (52) is connected to the bottom end of the separation cylinder (12). One end of the air extraction pipe (53) is connected to the air collecting box (34), and the other end is connected to the air pump (52). The top end of the heating box (54) is connected to the bottom end of the separation cylinder (12). The heating box (54) is connected with a heating chamber inside and is connected with the exhaust port of the air pump (52). A plurality of groups of electric heat resistance wires (55) are installed in the heating chamber of the heating box (54). One end of the heat exchange tube (56) is connected with the inside of the heating box (54) and is coiled on the outside of the stirring barrel (41). The other end of the heat exchange tube (56) is connected with the inside of the separation chamber of the separation barrel (12). The nozzle (57) is installed on the heat exchange tube (56) and is located in the separation chamber of the separation barrel (12). The valve three (58) is installed on the heat exchange tube (56).

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