Rice bran wax purification equipment and technology

Abstract

The invention belongs to the technical field of rice bran wax purification, and particularly relates to rice bran wax purification equipment which comprises a centrifugal separation box, the upper end of the centrifugal separation box is hermetically covered with a box cover, and a first motor is fixedly mounted in the center of the lower end of the centrifugal separation box; the output end of the first motor penetrates through the bottom of the centrifugal separation box and is coaxially and fixedly connected with a centrifugal disc in the centrifugal separation box. The rice bran wax purification process adopts the rice bran wax purification equipment for purification, and comprises the following steps: S1, putting the wax paste to be purified and the ternary azeotrope into the stirring tank according to a certain proportion, and uniformly stirring and mixing at a certain temperature through the second motor and the stirring rod. The device has the advantages that the centrifugal layering work can be quickly and effectively completed, the centrifugal efficiency is improved, the subsequent treatment and procedure continuity are ensured, and the purification effect and efficiency are greatly improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of rice bran wax purification, and particularly relates to a rice bran wax purification device and process. BACKGROUND

[0002] Rice bran wax is a mixture of esters composed of higher fatty acids and higher monohydric alcohols, which is non-toxic and harmless. Due to its unique properties, it is often used as a substitute for carnauba wax and is often mixed with carnauba wax. Rice bran wax is widely used in insulating coatings for electrical appliances, leather, wood, paper, fruit spray preservatives, product surface coating agents, polishing wax, floor wax, film agent, fiber emulsion and gum mother sugar, etc.

[0003] At present, rice bran wax is prepared in the process of rice bran oil production. The rice bran wax is separated from oil and fat to obtain a by-product called wax paste. The wax paste is refined and purified to obtain rice bran wax. The extraction of rice bran wax from the by-product wax paste of rice bran oil refining not only significantly improves the quality of rice bran oil, but also has the value in many aspects. In the prior art, during the process of extracting rice bran wax from wax paste, a certain proportion of ternary azeotrope is first added to the wax paste, and then the mixture is stirred at a certain temperature and then put into a centrifuge for centrifugation. After the centrifugation, the mixture is cooled to the state where the wax and oil are separated, and then the solvent in the centrifuged rice bran wax is evaporated to separate the organic solvent, so as to obtain solid rice bran wax. The centrifugation process and the mixing process both need to consume a large amount of time, and the existing centrifugal equipment can only perform overall rotation centrifugation, and the centrifugal separation efficiency is low. Moreover, after the separation of the wax and the oil, the bottom layer of rice bran wax cannot be effectively collected. This method for purifying rice bran wax consumes too much time and has high cost.

[0004] To solve the above problems, the present application provides a rice bran wax purification device and process. SUMMARY

[0005] The present application aims to solve the problems in the background art by providing a rice bran wax purification device and process.

[0006] To achieve the above object, the present application adopts the following technical scheme: a rice bran wax purification device and process, comprising a centrifugal separation box, a box cover is arranged on the upper end of the centrifugal separation box, a first motor is fixedly installed at the central position of the lower end of the centrifugal separation box, a centrifugal disc is coaxially fixedly connected to the output end of the first motor and penetrates the bottom of the centrifugal separation box, four container notches are uniformly arranged on the outer end of the centrifugal disc, four centrifugal tanks are arranged in the four container notches, a rotating shaft is rotatably connected between the centrifugal tank and the inner wall of the container notch, four small motors are fixedly installed in the centrifugal disc and drive the centrifugal tank to rotate through the rotating shaft, a tubular tank opening is arranged on the upper end of the centrifugal tank, and a tank sealing mechanism is arranged at the central position of the upper end of the centrifugal disc. The upper end of the box cover is fixedly connected with a stirring tank, a second motor is fixedly installed below the stirring tank, the output end of the second motor extends into the stirring tank and is coaxially fixedly connected with a stirring rod, lifting pipes are vertically slidably penetrated through the centrifugal tanks at the upper end of the box cover and at the front and left and right positions, the lower ends of the three lifting pipes correspond to the positions of the three tubular tank openings and have diameters smaller than the tubular tank openings, end blocks are fixedly sleeved with the upper ends of the three lifting pipes, three electric telescopic rods are fixedly installed at the upper end of the box cover, the telescopic ends of the three electric telescopic rods are fixedly connected with the lower ends of the four end blocks, a first conveying pump, a second conveying pump and a third conveying pump are fixedly installed at the upper end of the box cover, a communication pipe is in common communication between the input end of the first conveying pump and the stirring tank, the upper end of the lifting pipe on the left side, the upper end of the lifting pipe in front is in communication with the output end of the second conveying pump through a hose, the upper end of the lifting pipe on the right side is in communication with the input end of the third conveying pump through a hose, and the output end of the third conveying pump is in communication with the second discharge pipe.

[0007] In the above-mentioned rice bran wax purification equipment and process, the left and right ends of the box cover are fixedly connected with fixed blocks, hydraulic cylinders are fixedly installed at the left and right ends of the centrifugal separation tank, and the telescopic ends of the two hydraulic cylinders are fixedly connected with the lower ends of the two fixed blocks.

[0008] In the above-mentioned rice bran wax purification equipment and process, each centrifugal tank is provided with an observation glass strip, a rubber leakage prevention sheet is arranged in the tubular tank opening, and each centrifugal tank is provided with an exhaust valve at the upper end.

[0009] In the above-mentioned rice bran wax purification equipment and process, the tank sealing mechanism comprises a third motor fixedly embedded at the center position of the upper end of the centrifugal disc, a rectangular box is arranged vertically above the third motor, four right-angle supporting pieces are fixedly connected between the lower end of the rectangular box and the upper end of the centrifugal disc, downwardly inclined inclined blocks are fixedly connected to the lower positions of the outer walls of the rectangular box, piston rods are movably connected to one end of each of the four inclined blocks facing the four centrifugal tanks, sealing covers are fixedly connected to the other ends of the piston rods away from the inclined blocks, rubber plugs matched with the inner diameters of the tubular tank openings are fixedly connected in the sealing covers, threaded rods are rotatably connected between the inner walls of the rectangular box, the output end of the third motor is coaxially fixedly connected with the lower end of the threaded rod, lifting sliding openings are formed in the front and rear ends of the rectangular box, a lifting frame is slidably sleeved on the rectangular box, lifting blocks are threadedly connected with the threaded rods, connecting blocks are fixedly connected to the front and rear ends of the lifting blocks, the two connecting blocks respectively penetrate through the two lifting sliding openings and are fixedly connected with the lifting frame, and connecting rods are rotatably connected between the outer walls of the lifting frame and the upper end positions of the four sealing covers.

[0010] In the above-mentioned rice bran wax purification equipment and process, the stirring tank and the centrifugal separation box are provided with temperature control devices, the front inner wall of the centrifugal separation box is provided with a monitoring camera, and the front end of the centrifugal separation box is provided with a display screen and a control panel.

[0011] In the above-mentioned rice bran wax purification equipment and process, the first discharge pipe is connected to the oil recovery device at the end away from the second conveying pump, and the second discharge pipe is connected to the evaporation device at the end away from the third conveying pump.

[0012] A rice bran wax purification process is purified by using the above-mentioned rice bran wax purification equipment, comprising: S1: Put the wax paste and ternary azeotrope to be purified into the stirring tank at a certain proportion, and mix them uniformly at a certain temperature by the second motor and the stirring rod; S2: The electric telescopic rod on the left drives the corresponding lifting pipe to move downward, so that the lower end of the lifting pipe is inserted into the centrifugal tank on the left through the tubular tank opening, and then the first conveying pump works to pump the mixed liquid in the stirring tank into the centrifugal tank quantitatively. After each centrifugal tank is filled, the first motor drives the centrifugal disc to rotate by ninety degrees until all four centrifugal tanks are filled with mixed liquid; S3: After the centrifugal tanks are filled with mixed liquid, the lifting pipe is reset, and the four small motors work simultaneously to drive the originally vertical centrifugal tanks to rotate forty-five degrees toward the center of the centrifugal disc, so that the centrifugal tanks remain in an inclined state. The tubular tank openings of the four centrifugal tanks in this state correspond to the four sealing covers one by one. Then the third motor works to drive the lifting frame to move downward through the threaded rod, and the sealing covers are moved by the connecting rod, so that the four sealing covers are tightly covered on the corresponding tubular tank openings to complete the leakage prevention work; S4: The first motor drives the centrifugal disc to rotate at high speed to perform the centrifugal work of the mixed liquid. After a certain time of centrifugation, the sealing covers are reset, the four centrifugal tanks return to the vertical state, and the centrifugal tanks are allowed to stand still to separate the wax and oil in the centrifugal tanks; S5: After the standing and separation are completed, the monitoring camera can directly observe the separation position and height of the wax and oil in the centrifugal tank through the observation glass strip on the centrifugal tank, and display the observation result on the display screen. Then the electric telescopic rod in front drives the lifting pipe to insert into the centrifugal tank in front with precise downward movement, so as to accurately extract the oil layer in front, ensure that the remaining part is rice bran wax organic solvent, and cooperate with the control rotation of the first motor to extract the oil layer from each centrifugal tank. After the oil layer is extracted, the electric telescopic rod on the right works to drive the lifting pipe to move downward into the centrifugal tank on the right, so as to extract the remaining rice bran wax organic solvent to the evaporation device, evaporate the organic solvent in the evaporation device, and obtain the purified rice bran wax.

[0013] Compared with the prior art, the rice bran wax purification equipment and process have the following advantages: By setting the centrifugal disc, container notch and four centrifugal tanks, when the wax paste mixture is centrifuged, the centrifugal tank can be kept in a state of tilting towards the center of the centrifugal disc, and under the action of high-speed rotation of the centrifugal disc, the rice bran wax molecules move towards the bottom of the centrifugal tank, so that the centrifugal separation work can be quickly and effectively completed, and the centrifugal efficiency is improved.

[0014] By setting the sealing cover mechanism, after the centrifugal tank is rotated to the tilting state, the four centrifugal tanks can be automatically sealed by the sealing cover, so that the leakage phenomenon does not occur during centrifugation, and the stability of the rotation and centrifugation is ensured.

[0015] By setting three electric telescopic rods, three lifting pipes, and first, second and third delivery pumps, the injection of the mixture and the step-by-step extraction of the wax and oil after the separation of the wax and oil can be automatically performed, the continuity of the subsequent processing and procedures is ensured, and the purification effect and efficiency are greatly improved. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 A perspective view of a rice bran wax purification equipment is provided for the present application. Figure 2 A partial sectional view of a rice bran wax purification equipment is provided for the present application. Figure 3 A perspective view of a centrifugal disc in a rice bran wax purification equipment is provided for the present application. Figure 4 A perspective view of a centrifugal disc in a rice bran wax purification equipment is provided for the present application. Figure 5 A perspective view of a sealing tank mechanism in a rice bran wax purification equipment is provided for the present application.

[0017] In the figure: 1 centrifugal separation box, 2 box cover, 3 fixed block, 4 hydraulic cylinder, 5 first motor, 6 centrifugal disc, 7 container notch, 8 centrifugal tank, 9 tubular tank opening, 10 observation glass strip, 11 sealing tank mechanism, 12 stirring tank, 13 second motor, 14 lifting pipe, 15 end block, 16 electric telescopic rod, 17 first delivery pump, 18 second delivery pump, 19 third delivery pump, 20 communication pipe, 21 first discharge pipe, 22 second discharge pipe, 23 third motor, 24 rectangular box, 25 inclined block, 26 piston rod, 27 sealing cover, 28 threaded rod, 29 lifting sliding opening, 30 lifting frame, 31 connecting rod, 32 display screen, 33 control panel. DETAILED DESCRIPTION

[0018] The following examples are for illustrative purposes only and are not intended to limit the scope of the present application. EXAMPLE

[0019] REFERENCE Figures 1-5The utility model provides a kind of equipment and process for purifying rice bran wax, including centrifugal separation tank 1, the upper end sealing cover of centrifugal separation tank 1 is equipped with tank cover 2, both ends of tank cover 2 are fixedly connected with fixed block 3, centrifugal separation tank 1 both ends are fixedly installed with hydraulic cylinder 4, the extension end of two hydraulic cylinders 4 is fixedly connected with the lower end of two fixed blocks 3 respectively, two hydraulic cylinders 4 can lift tank cover 2, to open centrifugal separation tank 1, facilitate the maintenance work in centrifugal separation tank 1.

[0020] First motor 5 is fixedly installed at the center position of the lower end of centrifugal separation tank 1, and the output end of first motor 5 penetrates the bottom of centrifugal separation tank 1 and is coaxially fixedly connected with centrifugal disc 6 in centrifugal separation tank 1, and first motor 5 can drive centrifugal disc 6 to rotate. Four container notches 7 are evenly arranged on the outer end of centrifugal disc 6, and four centrifugal tanks 8 are arranged in four container notches 7, for containing the mixed solution of wax paste and ternary azeotrope, so as to perform centrifugal work, and the rotating shaft is rotatably connected between the inner wall of the two sides of centrifugal tank 8 and container notch 7, four small motors are fixedly installed in centrifugal disc 6, and the centrifugal tank 8 is driven to rotate by the rotating shaft, and the small motor can rotate the centrifugal tank 8 from the vertical state to the inclined state. Tubular jar opening 9 is arranged at the upper end of centrifugal tank 8, and observation glass strip 10 is arranged at the outer end of each centrifugal tank 8, so that the solution in the centrifugal tank 8 can be directly observed. Rubber leakage-proof sheet is arranged in tubular jar opening 9, which is composed of rubber with circular shape and cross-shaped gap in the middle, so as to avoid liquid leakage when the tank body is inclined, and each centrifugal tank 8 is provided with an exhaust valve, which has the functions of preventing liquid leakage and exhausting.

[0021] Sealing mechanism 11 is arranged at the center position of the upper end of centrifugal disc 6, and sealing mechanism 11 includes third motor 23 fixedly embedded at the center position of the upper end of centrifugal disc 6, rectangular box 24 vertically arranged above third motor 23, four right-angle supporting members fixedly connected between the lower end of rectangular box 24 and the upper end of centrifugal disc 6, downwardly inclined inclined block 25 fixedly connected on the outer wall of rectangular box 24 and at the lower position, piston rod 26 movably connected at one end of four inclined blocks 25 towards four centrifugal tanks 8, sealing cover 27 fixedly connected at the end of piston rod 26 away from inclined block 25, rubber plug fixedly connected in sealing cover 27 and matched with the inner diameter of tubular jar opening 9, screw rod 28 rotatably connected between the upper and lower inner walls of rectangular box 24, output end of third motor 23 coaxially fixedly connected with the lower end of screw rod 28, lifting sliding port 29 arranged at both ends of rectangular box 24, lifting frame 30 slidingly sleeved on rectangular box 24, lifting block threadedly connected on screw rod 28, connecting block fixedly connected at both ends of lifting block, two connecting blocks respectively penetrating two lifting sliding ports 29 and fixedly connected with lifting frame 30, connecting rod 31 rotatably connected between the outer wall of four sides of lifting frame 30 and the upper position of four sealing covers 27, third motor 23 works, drives lifting frame 30 to move downwardly through screw rod 28, and moves sealing cover 27 through connecting rod 31.

[0022] A mixing tank 12 is fixedly connected to the upper end of the cover 2. A second motor 13 is fixedly installed below the mixing tank 12. The output end of the second motor 13 extends into the mixing tank 12 and is coaxially fixedly connected to a stirring rod, which can perform stirring. At the upper end of the cover 2, and corresponding to the centrifuge tanks 8 on the front and left and right sides, three lifting pipes 14 slide vertically through them. The lower ends of the three lifting pipes 14 correspond to the positions of three tubular tank openings 9, and their diameters are smaller than those of the tubular tank openings 9. End blocks 15 are fixedly sleeved on the upper ends of the three lifting pipes 14. Three electric telescopic rods 16 are fixedly installed on the upper end of the cover 2. The telescopic ends of the three electric telescopic rods 16 are fixedly connected to the lower ends of the four end blocks 15. A first delivery pump 17, a second delivery pump 18, and a third delivery pump 19 are fixedly installed on the upper end of the cover 2; all three are paraffin pumps. The input end of the first conveying pump 17 is connected to the mixing tank 12 via a connecting pipe 20, and its output end is connected to the upper end of the lifting pipe 14 located on the left via a flexible hose. The input end of the second conveying pump 18 is connected to the upper end of the lifting pipe 14 located in front via a flexible hose, and its output end is connected to the first discharge pipe 21. The input end of the third conveying pump 19 is connected to the upper end of the lifting pipe 14 located on the right via a flexible hose, and its output end is connected to the second discharge pipe 22. The end of the first discharge pipe 21 away from the second conveying pump 18 is connected to an oil recovery device, and the end of the second discharge pipe 22 away from the third conveying pump 19 is connected to an evaporation device. The oil recovery device and the evaporation device are existing technologies and will not be described here.

[0023] Both the mixing tank 12 and the centrifuge chamber 1 are equipped with temperature control devices. A monitoring camera is installed on the inner wall of the front of the centrifuge chamber 1. A display screen 32 and a control panel 33 are installed at the front of the centrifuge chamber 1. The operator can control the temperature inside the mixing tank 12 and the centrifuge chamber 1 through the control panel 33, and observe the stratification inside the centrifuge tank 8 through the monitoring camera and the display screen 32.

[0024] A rice bran wax purification process, using the aforementioned rice bran wax purification equipment, includes: S1: The wax paste to be purified and the ternary azeotrope are placed into the mixing tank 12 in a certain proportion, and stirred and mixed evenly at a certain temperature by the second motor 13 and the stirring rod. S2: The electric telescopic rod 16 located on the left moves the corresponding lifting pipe 14 down, so that its lower end is inserted into the centrifuge tank 8 located on the left through the tubular can opening 9. Then the first delivery pump 17 works to pump the mixture in the mixing tank 12 into the centrifuge tank 8 in a metered manner. After each centrifuge tank 8 is filled, the first motor 5 drives the centrifuge disc 6 to rotate 90 degrees until all four centrifuge tanks 8 are filled with the mixture. S3: After the mixture is filled, the lifting pipe 14 is reset, and the four small motors work at the same time, driving the centrifuge tank 8, which was originally vertical, to rotate 45 degrees toward the center of the centrifuge plate 6, so that the centrifuge tank 8 is kept in an inclined state. In this state, the tubular tank openings 9 of the four centrifuge tanks 8 correspond one-to-one with the four sealing caps 27. Then the third motor 23 works, driving the lifting frame 30 to move down through the threaded rod 28, and using the connecting rod 31 to drive the sealing caps 27 to move, so that the four sealing caps 27 are tightly covered on the corresponding tubular tank openings 9, completing the leak prevention work. S4: The first motor 5 drives the centrifuge disc 6 to rotate at high speed to centrifuge the mixture. After centrifugation for a certain period of time, the sealing cover 27 is reset, and the four centrifuge tanks 8 are returned to the vertical position and left to stand, so that the wax and oil in the centrifuge tanks 8 can be separated into layers. S5: After the static stratification is completed, the monitoring camera can directly observe the height of the wax and oil stratification in the centrifuge tank 8 through the observation glass strip 10 on the centrifuge tank 8, and display it on the display screen 32. Then, the electric telescopic rod 16 located in front can drive the lifting tube 14 to be inserted into the centrifuge tank 8 in front with a precise downward movement, thereby accurately extracting the oil layer located above, ensuring that the remaining layer is all rice bran wax organic solvent. With the control rotation of the first motor 5, the oil layer can be extracted from each centrifuge tank 8. After the oil layer is extracted, the electric telescopic rod 16 located on the right side works, driving the lifting tube 14 to move down to the centrifuge tank 8 on the right side, extracting the remaining rice bran wax organic solvent to the evaporation device, where the organic solvent is evaporated to obtain purified rice bran wax.

[0025] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A rice bran wax purification apparatus comprising a centrifugal separation tank (1), characterized by, The upper end sealing cover of the centrifugal separation tank (1) is provided with a tank cover (2), a first motor (5) is fixedly installed at the central position of the lower end of the centrifugal separation tank (1), the output end of the first motor (5) penetrates through the bottom of the centrifugal separation tank (1) and is coaxially fixedly connected with a centrifugal disc (6) in the centrifugal separation tank (1), four container notches (7) are uniformly circumferentially arranged at the outer end of the centrifugal disc (6), and a centrifugal tank (8) is arranged in each of the four container notches (7); a rotating shaft is rotatably connected between the centrifugal tank (8) and the inner walls on both sides of the container notch (7), four small motors for driving the centrifugal tank (8) to rotate are fixedly installed in the centrifugal disc (6), and a tank sealing mechanism (11) is arranged at the central position of the upper end of the centrifugal disc (6). A stirring tank (12) is fixedly connected to the upper end of the tank cover (2), a second motor (13) is fixedly installed below the stirring tank (12), the output end of the second motor (13) extends into the stirring tank (12) and is coaxially fixedly connected with a stirring rod, a lifting pipe (14) is vertically and slidingly arranged in the corresponding position of the centrifugal tank (8) at the upper end of the tank cover (2) and on the front and left and right sides, the lower ends of the three lifting pipes (14) are respectively located in the corresponding positions of the three tubular tank openings (9) and have diameters smaller than those of the tubular tank openings (9), end blocks (15) are fixedly sleeved with the upper ends of the three lifting pipes (14), three electric telescopic rods (16) are fixedly installed at the upper end of the tank cover (2), the telescopic ends of the three electric telescopic rods (16) are fixedly connected with the lower ends of the four end blocks (15), a first conveying pump (17), a second conveying pump (18) and a third conveying pump (19) are fixedly installed at the upper end of the tank cover (2), a communication pipe (20) is in communication between the input end of the first conveying pump (17) and the stirring tank (12), the output end of the first conveying pump (17) is in communication with the upper end of the lifting pipe (14) on the left side through a hose, the input end of the second conveying pump (18) is in communication with the upper end of the lifting pipe (14) on the front side through a hose, and the output end of the second conveying pump (18) is in communication with a first discharge pipe (21); the input end of the third conveying pump (19) is in communication with the upper end of the lifting pipe (14) on the right side through a hose, and the output end of the third conveying pump (19) is in communication with a second discharge pipe (22).

2. The rice bran wax purification apparatus according to claim 1, wherein The left and right ends of the tank cover (2) are fixedly connected with fixed blocks (3), and hydraulic cylinders (4) are fixedly installed at the left and right ends of the centrifugal separation tank (1); the telescopic ends of the two hydraulic cylinders (4) are fixedly connected with the lower ends of the two fixed blocks (3).

3. The rice bran wax purification apparatus according to claim 1, wherein An observation glass strip (10) is arranged at the outer end of each centrifugal tank (8), a rubber leakage prevention sheet is arranged in the tubular tank opening (9), and an exhaust valve is arranged at the upper end of each centrifugal tank (8).

4. The rice bran wax purification apparatus according to claim 1, wherein The sealing mechanism (11) includes a third motor (23) fixedly embedded in the center of the upper end of the centrifugal disc (6), a rectangular box (24) vertically arranged above the third motor (23), four right-angle supporting members fixedly connected between the lower end of the rectangular box (24) and the upper end of the centrifugal disc (6), four inclined blocks (25) fixedly connected to the lower position of the outer wall of the rectangular box (24), a piston rod (26) movably connected to one end of each of the four inclined blocks (25) facing one end of the four centrifugal tanks (8), a sealing cover (27) fixedly connected to the end of the piston rod (26) away from the inclined block (25), a rubber plug fixedly connected in the sealing cover (27) and matched with the inner diameter of the tubular tank mouth (9), a threaded rod (28) rotatably connected between the inner walls of the rectangular box (24), the output end of the third motor (23) coaxially fixedly connected with the lower end of the threaded rod (28), lifting sliding openings (29) formed in the front and rear ends of the rectangular box (24), a lifting frame (30) slidably sleeved on the rectangular box (24), a lifting block threadedly connected with the threaded rod (28), a connecting block fixedly connected to the front and rear ends of the lifting block, and two connecting blocks penetrating through the two lifting sliding openings (29) and fixedly connected with the lifting frame (30), and a connecting rod (31) rotatably connected between the outer wall of the lifting frame (30) and the upper end position of each of the four sealing covers (27).

5. The rice bran wax purification apparatus according to claim 1, wherein The stirring tank (12) and the centrifugal separation box (1) are both provided with temperature control devices, the inner wall in front of the centrifugal separation box (1) is provided with a monitoring camera, and the front end of the centrifugal separation box (1) is provided with a display screen (32) and a control panel (33).

6. The rice bran wax purification apparatus according to claim 1, wherein The end of the first discharge pipe (21) away from the second conveying pump (18) is communicated with an oil recovery device, and the end of the second discharge pipe (22) away from the third conveying pump (19) is communicated with an evaporation device.

7. A process for purifying rice bran wax, using the rice bran wax purifying apparatus according to any one of claims 1 to 6, characterized in that, It comprises: S1: Put the wax paste to be purified and the ternary azeotrope into the stirring tank (12), and mix them uniformly by the second motor (13) and the stirring rod; S2: The electric telescopic rod (16) on the left side drives the corresponding lifting pipe (14) to move downward, so that the lower end of the lifting pipe (14) is inserted into the centrifugal tank (8) on the left side through the tubular tank mouth (9), then the first conveying pump (17) works to quantitatively pump the mixture in the stirring tank (12) into the centrifugal tank (8), and every time a centrifugal tank (8) is filled, the first motor (5) drives the centrifugal disc (6) to rotate by ninety degrees until the four centrifugal tanks (8) are filled with the mixture; S3: After the mixed solution is filled, the lifting pipe (14) is reset, the four small motors work simultaneously, drive the originally vertical centrifugal tank (8) to rotate 45 degrees towards the center position of the centrifugal disc (6), so that the centrifugal tank (8) remains in an inclined state, and the tubular tank mouth (9) end of the four centrifugal tanks (8) corresponds to the four sealing covers (27) one by one, then the third motor (23) works, drives the lifting frame (30) to move down through the threaded rod (28), moves the sealing cover (27) through the connecting rod (31), tightly covers the corresponding tubular tank mouth (9) on the four sealing covers (27), and completes the leakage prevention work; S4: The first motor (5) drives the centrifugal disc (6) to rotate at high speed, and the mixed solution is centrifuged. After centrifugation, the sealing cover (27) is reset, the four centrifugal tanks (8) return to the vertical state, and the centrifugal tank (8) is placed to make the wax and oil in the centrifugal tank (8) stratify; S5: After the stratification is completed, the monitoring camera can directly observe the wax and oil stratification position height in the centrifugal tank (8) through the observation glass bar (10) on the centrifugal tank (8), and display it through the display screen (32). Then the electric telescopic rod (16) located in front can drive the lifting pipe (14) to insert into the centrifugal tank (8) located in front with precise downward movement, so as to accurately extract the oil layer located above, ensure that the remaining is rice bran wax organic solvent, cooperate with the control rotation of the first motor (5), each centrifugal tank (8) can be extracted from the oil layer, and after the oil layer is extracted, the electric telescopic rod (16) located on the right side works, drives the lifting pipe (14) to move down into the centrifugal tank (8) on the right side, and then the remaining rice bran wax organic solvent is extracted into the evaporation device. The organic solvent is evaporated in the evaporation device, and the purified rice bran wax is obtained.

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