Taurine purification device and purification method thereof

Abstract

The invention provides a taurine purification device and a purification method thereof, and relates to the technical field of taurine production.The taurine purification device comprises a cylindrical first centrifugal cavity, a second centrifugal cavity and a third centrifugal cavity, the first filter cartridge is communicated with the blanking pipe; the first centrifugal cavity is driven by a rotating source; an impurity removal mechanism driven by a driving mechanism is arranged in the first filter cartridge, and the impurity removal mechanism is used for discharging taurine impurities subjected to primary centrifugation; the impurity removal mechanism comprises a hollow first rotating rod which is coaxially arranged in the first filter cartridge; a plurality of slag suction holes are formed in the peripheral wall of the first rotating rod, and a lifting auger is coaxially arranged in an inner cavity of the first rotating rod; a suction mechanism is connected to the inner wall of the first centrifugal cavity in an up-down sliding mode and communicates with the multi-stage separation mechanism. And the centrifugal force obtained by the materials is gradually increased through multi-stage separation. The method has the effect of improving the purification efficiency of the taurine mother liquor.

Description

Technical Field

[0001] The present invention relates to the technical field of taurine production, and particularly relates to a taurine purification device and a purification method thereof. Background Art

[0002] Taurine is a sulfur-containing non-protein amino acid and has wide applications in fields such as medicine, food additives, and feed additives. During the production process of taurine, there are usually some impurities, such as unreacted raw materials, by-products, etc. These impurities will affect the quality and purity of taurine, and thus limit its application in high-end fields. Therefore, it is necessary to purify taurine to improve its purity and quality.

[0003] Traditional taurine purification methods include recrystallization, ion exchange resin adsorption, ultrafiltration, centrifugation, etc. Among these methods, the centrifugation method has a relatively high extraction purity. Based on the action of centrifugal force, the mixture is separated into components with different densities by a high-speed rotating centrifuge, so as to realize the separation of impurities and taurine liquid.

[0004] Refer to Figure 1 , in the existing centrifugation method for purifying taurine mother liquor, a plate centrifuge drives a drum to rotate at a high speed through a motor, so that the taurine mother liquor in the drum is subjected to centrifugal force. Since the density of solid impurities in the mother liquor is different from that of the liquid, under the action of centrifugal force, the solid impurities with a larger density will move towards the drum wall, while the liquid with a smaller density will gather inside the solid impurities, thus realizing solid-liquid stratification. Filter media such as filter cloth or filter screen are usually arranged in the drum. When the mother liquor undergoes solid-liquid stratification under the action of centrifugal force, when the liquid part passes through the filter media, the tiny solid particles therein will be intercepted by the filter media.

[0005] The above technology realizes the single solid-liquid separation of taurine mother liquor through centrifugal force, and the obtained solid matter still needs to be further separated through other processes to obtain high-quality taurine. Summary of the Invention

[0006] In view of this, the present invention provides a taurine purification device and a purification method thereof to solve the problem of low efficiency of the existing taurine purification method.

[0007] To solve the above technical problems, the present invention provides a taurine purification device, which includes a cylindrical first centrifugal chamber, and a first filter cylinder with an open upper end is coaxially arranged in the first centrifugal chamber; the first filter cylinder is communicated with a feeding pipe; the first centrifugal chamber is driven by a rotating source; an impurity removing mechanism driven by a driving mechanism is arranged in the first filter cylinder, and the impurity removing mechanism discharges the impurities in the taurine after primary centrifugation; the impurity removing mechanism includes a hollow first rotating rod coaxially arranged in the first filter cylinder; a plurality of slag suction holes are formed in the peripheral wall of the first rotating rod, and a lifting auger is coaxially arranged in the inner cavity of the first rotating rod; a plurality of arc-shaped scraping plates are also coaxially arranged on the outer wall of the first rotating rod, and the outer wall of the arc-shaped scraping plate is attached to the inner wall of the first filter cylinder; a suction mechanism is slidably connected to the inner wall of the first centrifugal chamber up and down, and the suction mechanism is communicated with a multi-stage separation mechanism; the multi-stage separation gradually increases the centrifugal force obtained by the material. The supernatant after primary separation flows into the multi-stage separation mechanism through the suction mechanism, and the centrifugal force obtained by the material gradually increases, so that the separation of impurities in taurine is more thorough; through the multi-stage separation mechanism, impurities of different components in the taurine liquid can also be collected in sequence, improving the recovery efficiency of taurine impurities.

[0008] Further, the suction mechanism includes a lifting disc adapted to the diameter of the first centrifugal chamber, and a plurality of opening and closing holes are opened downward on the upper end surface of the lifting disc; a sliding hole and a plurality of liquid outlet holes are respectively penetrated through the bottom wall of each opening and closing hole; a floating rod is slidably connected in the sliding hole; both ends of the floating rod extend out of the lifting disc, a weight ball is arranged on the lower end surface of the floating rod, and a cover plate is coaxially arranged on the upper end surface; the bottom surface of the cover plate is larger than the aperture of the opening and closing hole. By the up and down sliding of the lifting disc, the supernatant after primary separation can be lifted, and at the same time, the supernatant in the lifting process is prevented from being mixed with the impurities separated in the primary stage.

[0009] Further, a sliding shaft is arranged at the center of the lifting disc, and the sliding shaft is coaxially and slidably connected with the first rotating rod; the telescopic rod of the cylinder is fixedly connected with the sliding shaft.

[0010] Further, the multi-stage separation mechanism includes a second centrifugal chamber coaxially sleeved outside the first centrifugal chamber; a third centrifugal chamber is also coaxially sleeved outside the second centrifugal chamber; a columnar filter membrane is arranged on the outer wall of the second centrifugal chamber, and a molecular filter membrane is arranged on the bottom wall of the third centrifugal chamber, and the filter holes of the columnar filter membrane are larger than those of the molecular filter membrane; the molecular filter membrane 121 divides the third centrifugal chamber 12 into upper and lower parts, and the height of the molecular filter membrane 121 is lower than that of the columnar filter membrane 111; a liquid discharge port is arranged at the bottom of the third centrifugal chamber, and the liquid discharge port is connected with the outside through a first valve; a slag discharge port is arranged at the bottom of the second centrifugal chamber, and the slag discharge port is connected with the outside through a second valve. After the first centrifugal chamber performs primary separation on the material, the obtained supernatant is transported to the second centrifugal chamber through the suction mechanism, and the material separated by the second centrifugal chamber then enters the third centrifugal chamber.

[0011] Further, a liquid inlet chamber is formed between the sliding shaft and the first rotating rod; a funnel is coaxially arranged on the upper end surface of the sliding shaft, and the liquid outlet at the bottom of the funnel is communicated with the liquid inlet chamber.

[0012] Further, the driving source adopts a first motor, and the output shaft of the first motor is coaxially and fixedly connected to the bottom of the first centrifugal chamber; the first motor is fixedly connected to the base; the first centrifugal chamber, the second centrifugal chamber and the third centrifugal chamber are rotatably connected to the base; a plurality of support rods are further arranged on the upper end surface of the base, and a support disc is arranged on the upper end surface of the support rods. The support disc makes the operation of the components more stable.

[0013] Further, the driving mechanism includes a second motor fixedly arranged on the support disc, and a first bevel gear is coaxially arranged on the output shaft of the second motor; the end surface of the first bevel gear is perpendicular to the upper end surface of the first rotating rod; a second bevel gear and a third bevel gear are respectively meshed on the upper and lower sides of the first bevel gear; the second bevel gear is coaxially and fixedly connected to the upper end surface of the lifting auger; the third bevel gear is coaxially and fixedly connected to the upper end surface of the first rotating rod.

[0014] Further, a drain pipe is rotatably connected to the upper end surface of the first rotating rod, the drain pipe is fixedly connected to the support disc, and the other end of the drain pipe can be connected to a waste bucket through a first pump pipe; the blanking pipe is fixedly arranged on the support disc, the liquid inlet end of the blanking pipe can be connected to a material bucket through a second pump pipe, and the discharge pipe of the blanking pipe is connected to the funnel.

[0015] Further, a method for purifying taurine mother liquor includes the following steps: S1, the material enters the first filter cylinder, and under the action of the centrifugal force generated by the rotation of the first centrifugal chamber, primary separation of impurities and taurine supernatant is achieved; S2, the arc-shaped scraper rotates to scrape the impurities on the inner wall of the first filter cylinder to ensure the smooth filtration of the first filter cylinder; meanwhile, a plurality of rotating arc-shaped scrapers converge the separated impurities towards the axis; S3, the lifting auger rotates to suck the impurities converged near the slag suction hole into the inner cavity of the first rotating rod and lift the impurities; under the negative pressure action of the suction of the first pump pipe, the lifted impurities are drained into the waste bucket through the drain pipe; S4, the lifting disc filters and extracts the supernatant separated by the first centrifugal chamber; S5, after the material entering the second centrifugal chamber (11) obtains a greater centrifugal force, it enters the third centrifugal chamber (12) through the columnar filter membrane (111); after separation in the third centrifugal chamber (12), the solid substances remain in the third centrifugal chamber (12), and the liquid enters the drain port through the molecular filter membrane (121) and is discharged.

[0016] In summary, compared with the prior art, the present invention includes at least one of the following beneficial technical effects: 1. By subjecting taurine to multi-stage separation and arranging multiple centrifugal chambers, the taurine liquid is successively subjected to a greater centrifugal force; different components in taurine are successively separated from the taurine mother liquor under the action of different centrifugal forces, facilitating the recovery of different components during the purification process of taurine.

[0017] 2. By arranging a suction mechanism, the taurine supernatant obtained after primary separation is transported to the multi-stage separation mechanism, and at the same time, it can prevent the impurities separated in the primary stage from being transported into the multi-stage separation mechanism, improving the purity of the taurine entering the multi-stage separation mechanism and reducing the operating pressure of the multi-stage separation mechanism.

[0018] 3. By arranging an impurity removal mechanism, while discharging the taurine impurities separated in the primary stage in real time, it can also prevent the impurities generated during the centrifugation process from causing excessive impurities in the centrifugal chamber and affecting the separation effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a schematic structural diagram of the prior art; Figure 2 is a schematic diagram of the overall structure of an embodiment of the present invention; Figure 3 is a schematic structural diagram showing a longitudinal section of an embodiment of the present invention; Figure 4 is a schematic structural diagram showing a driving mechanism of an embodiment of the present invention; Figure 5 is a schematic structural diagram showing a multi-stage separation mechanism of an embodiment of the present invention; Figure 6 is a schematic diagram showing the connection relationship of the internal structure of an embodiment of the present invention; Figure 7 is Figure 6 a partial enlarged view of area A in Figure 8 is Figure 7 a partial enlarged view of area B in Figure 9 is a schematic structural diagram showing a floating rod of an embodiment of the present invention; Figure 10 is a schematic structural diagram showing a first rotating rod of an embodiment of the present invention.

[0020] Description of the reference numerals in the drawings: 1. First centrifugal chamber (1); 11. Second centrifugal chamber (11); 111. Columnar filter membrane (111); 112. Second valve (112); 12. Third centrifugal chamber (12); 121. Molecular filter membrane (121); 122. First valve (122); 2. First filter cylinder (2); 21. First rotating rod (21); 22. Slag suction hole (22); 23. Elevating auger (23); 24. Arc-shaped scraper (24); 3. Feeding pipe (3); 31. Liquid inlet chamber (31); 32. Hopper (32); 4. Lifting plate (4); 41. Opening and closing hole (41); 42. Sliding hole (42); 43. Liquid outlet hole (43); 44. Floating rod (44); 45. Cover plate (45); 46. Cylinder (46); 47. Sliding shaft (47); 48. Plumb bob (48); 5. Base (5); 51. First motor (51); 52. Support rod (52); 521. Support plate (521); 53. Second motor (53); 531. First bevel gear (531); 532. Second bevel gear (532); 533. Third bevel gear (533); 6. Drain pipe (6). Detailed implementation manners

[0021] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the Figures 1 - 10 of the embodiments of the present invention. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. Based on the described embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art shall fall within the scope of protection of the present invention.

[0022] A taurine purification device and a purification method thereof according to the present invention include a cylindrical first centrifugal chamber 1, and a first filter cylinder 2 with an open upper end is coaxially arranged in the first centrifugal chamber 1; the first filter cylinder 2 is communicated with a feeding pipe 3; the first centrifugal chamber 1 is driven by a rotating source; a impurity removing mechanism driven by a driving mechanism is arranged in the first filter cylinder 2, and the impurity removing mechanism discharges the impurities of taurine after primary centrifugation; the impurity removing mechanism includes a hollow first rotating rod 21 coaxially arranged in the first filter cylinder 2; a plurality of slag suction holes 22 are formed in the peripheral wall of the first rotating rod 21, and an elevating auger 23 is coaxially arranged in the inner cavity of the first rotating rod 21; a plurality of arc-shaped scrapers 24 are also coaxially arranged on the outer wall of the first rotating rod 21, and the outer wall of the arc-shaped scraper 24 is attached to the inner wall of the first filter cylinder 2; a suction mechanism is slidably connected to the upper and lower inner walls of the first centrifugal chamber 1, and the suction mechanism is communicated with a multi-stage separation mechanism; the multi-stage separation gradually increases the centrifugal force obtained by the material.

[0023] In this embodiment, taurine to be purified is conveyed into the first filter cylinder 2 through the blanking pipe 3. The driving source drives the materials in the first filter cylinder 2 to rotate through the first centrifugal chamber 1, realizing the separation of larger impurities from taurine. At this time, the arc-shaped scraper 24 rotating in the opposite direction to the first centrifugal chamber 1 scrapes the impurities adhering to the inner wall of the first filter cylinder 2, and at the same time gathers the impurities in the inner cavity of the first filter cylinder 2 inward. The driving mechanism drives the lifting auger 23 to rotate. Under the action of the rotation of the lifting auger 23, the impurities enter the inner cavity of the first rotating rod 21 through the slag suction holes 22, and are conveyed to the outside of the equipment and discharged. The supernatant after primary separation flows into the multi-stage separation mechanism through the suction mechanism. The centrifugal force obtained by the materials gradually increases, so that the separation of impurities in taurine is more thorough. Through the multi-stage separation mechanism, impurities of different components in the taurine liquid can also be collected in sequence, improving the recovery efficiency of taurine impurities.

[0024] In order to avoid the mixing of the supernatant and the impurities separated in the primary separation during the lifting process, in the present invention, the suction mechanism includes a lifting disk 4 adapted to the diameter of the first centrifugal chamber 1. A plurality of opening and closing holes 41 are opened downward on the upper end surface of the lifting disk 4; a sliding hole 42 and a plurality of liquid outlet holes 43 are respectively and vertically penetrated through the bottom wall of each opening and closing hole 41; a floating rod 44 is slidably connected in the sliding hole 42; both ends of the floating rod 44 extend out of the lifting disk 4. A plumb bob 48 is arranged on the lower end surface of the floating rod 44, and a cover plate 45 is coaxially arranged on the upper end surface; the bottom surface of the cover plate 45 is larger than the aperture of the opening and closing hole 41. In this embodiment, the supernatant after primary separation can be lifted by the up and down sliding of the lifting disk, while avoiding the mixing of the supernatant during the lifting process and the impurities separated in the primary separation. When the lifting disk 4 slides downward, the flow force generated by the upward flow of the supernatant under the pressure of the cover plate 45 causes the cover plate 45 to lift relative to the lifting disk 4. At this time, the lower surface of the cover plate 45 no longer contacts the upper surface of the lifting disk 4, and the supernatant below the lifting disk 4 enters the space of the first centrifugal chamber 1 above the lifting disk 4 through the liquid outlet holes 43. When the lifting disk 4 moves upward, the cover plate 45 no longer receives the upward flow force of taurine. Under the action of the gravity of the plumb bob 48, the floating rod 44 moves downward relative to the lifting disk 4 until the lower surface of the cover plate 45 fits the upper surface of the lifting disk 4. At this time, the lifting disk 4 continues to move upward, discharges the liquid carried in this lifting to the multi-stage separation mechanism, and then repeats the downward movement again.

[0025] In order to facilitate the reciprocating up and down movement of the lifting mechanism, in the present invention, a cylinder 46 is further provided. A sliding shaft 47 is arranged at the center of the lifting disk 4, and the sliding shaft 47 is slidably connected to the first rotating rod 21 coaxially; the telescopic rod of the cylinder 46 is fixedly connected to the sliding shaft 47. In this embodiment, by the extension and retraction of the telescopic rod of the cylinder 46, the sliding shaft 47 is driven to drive the lifting disk 4 to move upward or downward.

[0026] In the present invention, the multi-stage separation mechanism includes a second centrifugal chamber 11 coaxially sleeved outside the outer wall of the first centrifugal chamber 1; a third centrifugal chamber 12 is also coaxially sleeved outside the cylinder of the second centrifugal chamber 11; a columnar filter membrane 111 is arranged outside the cylinder of the second centrifugal chamber 11, and a molecular filter membrane 121 is arranged on the bottom wall of the third centrifugal chamber 12. The filter holes of the columnar filter membrane 111 are larger than those of the molecular filter membrane 121; the molecular filter membrane 121 divides the third centrifugal chamber 12 into upper and lower parts, and the height of the molecular filter membrane 121 is lower than that of the columnar filter membrane 111; a liquid discharge port is arranged at the bottom of the third centrifugal chamber 12, and the liquid discharge port is connected to the outside through a first valve 122; a slag discharge port is arranged at the bottom of the second centrifugal chamber 11, and the slag discharge port is connected to the outside through a second valve 112; In this embodiment, after the first centrifugal chamber 1 performs primary separation on the material, the supernatant obtained is transported to the second centrifugal chamber 11 through the suction mechanism; the liquid centrifuged by the second centrifugal chamber 11 enters the third centrifugal chamber 12 through the columnar filter membrane 111, and the impurities remain in the second centrifugal chamber 11; the material entering the third centrifugal chamber 12 obtains the maximum centrifugal force. After the material is centrifuged, it then enters the liquid discharge port through the molecular filter membrane 121 and is discharged outside the device when the first valve 122 is opened.

[0027] To facilitate feeding, in the present invention, a liquid inlet chamber 31 is formed between the sliding shaft 47 and the first rotating rod 21; a funnel 32 is coaxially arranged on the upper end surface of the sliding shaft 47, and the liquid outlet at the bottom of the funnel 32 is communicated with the liquid inlet chamber 31.

[0028] To further improve the operation stability of the device, in the present invention, a base 5 is also provided. The drive source adopts a first motor 51, and the output shaft of the first motor 51 is coaxially and fixedly connected to the bottom of the first centrifugal chamber 1; the first motor 51 is fixedly connected to the base 5; the first centrifugal chamber 1, the second centrifugal chamber 11, and the third centrifugal chamber 12 are rotationally connected to the base 5; a plurality of support rods 52 are also arranged on the upper end surface of the base 5, and a support disc 521 is arranged on the upper end surface of the support rods 52.

[0029] In the present invention, the drive mechanism includes a second motor 53 fixedly arranged on the support disc 521. The output shaft of the second motor 53 is coaxially provided with a first bevel gear 531; the end surface of the first bevel gear 531 is perpendicular to the upper end surface of the first rotating rod 21; a second bevel gear 532 and a third bevel gear 533 are respectively meshed on the upper and lower sides of the first bevel gear 531; the second bevel gear 532 is coaxially and fixedly connected to the upper end surface of the lifting auger 23; the third bevel gear 533 is coaxially and fixedly connected to the upper end surface of the first rotating rod 21; In this embodiment, the second motor 53 simultaneously meshes to drive the reverse rotation of the second bevel gear 532 and the third bevel gear 533. While the lifting auger 23 lifts the impurities that have undergone primary separation upward, the first rotating rod 21 that rotates in the reverse direction drives a plurality of arc-shaped scrapers 24 to scrape the material towards the slag suction hole 22.

[0030] To further facilitate the entry of the material and the discharge of the impurities, in the present invention, a drain pipe 6 is rotatably connected to the upper end surface of the first rotating rod 21. The drain pipe 6 is fixedly connected to the support disk 521. The other end of the drain pipe 6 can be connected to a waste bucket through a first pump pipe; the feeding pipe 3 is fixedly arranged on the support disk 521. The liquid inlet end of the feeding pipe 3 can be connected to a material bucket through a second pump pipe, and the discharge end of the feeding pipe 3 is connected to a funnel 32. In this embodiment, the material in the material bucket is suctioned into the funnel 32 through the second pump pipe, and the material entering the funnel 32 enters the first filter cylinder 2 after passing through the first rotating rod 21.

[0031] In this embodiment, the material lifted by the lifting auger 23 is suctioned into the waste bucket through the first pump pipe.

[0032] The working process of the present invention is as follows: The first driving motor drives the first centrifugal chamber 1, the second centrifugal chamber 11, and the third centrifugal chamber 12 to rotate at a high speed; the material in the material bucket is suctioned into the funnel 32 through the second pump pipe, and the material entering the funnel 32 enters the first filter cylinder 2 after passing through the inner cavity of the first rotating rod 21; for the material entering the first filter cylinder 2, under the action of the centrifugal force generated by the rotation of the first centrifugal chamber 1, the primary separation of impurities and taurine supernatant is realized. The second motor 53 meshes to drive the second bevel gear 532 and the third bevel gear 533 to rotate. Since the second bevel gear 532 and the third bevel gear 533 are symmetrically distributed on the upper and lower sides of the first bevel gear 531, the rotation directions of the second bevel gear 532 and the third bevel gear 533 are opposite; at this time, the third bevel gear 533 drives a plurality of arc-shaped scrapers 24 to rotate, scraping the impurities on the inner wall of the first filter cylinder 2 to ensure the smooth filtration of the first filter cylinder 2; at the same time, a plurality of rotating arc-shaped scrapers 24 converge the separated impurities towards the axis. The second bevel gear 532 drives the lifting auger 23 to rotate, sucking the impurities converging near the slag suction hole 22 into the inner cavity of the first rotating rod 21 and lifting the impurities; the lifted impurities are discharged into the waste bucket through the drain pipe 6 under the negative pressure action of the suction of the first pump pipe. Meanwhile, the telescopic rod of the air cylinder 46 drives the lifting disc 4 to continuously move up and down through the sliding shaft 47; when the lifting disc 4 slides downward, the flow force generated by the upward flow of the supernatant liquid by pressing down the cover plate 45 causes the cover plate 45 to lift relative to the lifting disc 4; at this time, the lower surface of the cover plate 45 no longer contacts the upper surface of the lifting disc 4, and the supernatant liquid below the lifting disc 4 enters the space of the first centrifugal chamber 1 above the lifting disc 4 through the liquid outlet hole 43; when the lifting disc 4 moves upward, the cover plate 45 no longer receives the upward flow force of taurine, and under the action of the gravity of the falling ball 48, the floating rod 44 moves downward relative to the lifting disc 4 until the lower surface of the cover plate 45 fits the upper surface of the lifting disc 4; at this time, the lifting disc 4 continues to move upward, discharges the liquid carried by this lift to the second centrifugal chamber 11, and then repeats the downward movement again; The material entering the second centrifugal chamber 11 obtains a greater centrifugal force than that in the first centrifugal chamber 1 to further separate the material. The liquid centrifuged in the second centrifugal chamber 11 enters the third centrifugal chamber 12 through the columnar filter membrane 111, and the separated solid matter remains in the second centrifugal chamber 11; the material entering the third centrifugal chamber 12 obtains the maximum centrifugal force. After the material is centrifuged, the solid matter remains in the third centrifugal chamber 12, and the liquid enters the drain port through the molecular filter membrane 121 and is discharged outside the device when the first valve 122 is opened.

[0033] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installation", "connection", and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0034] The above are the preferred embodiments of the present invention. It should be pointed out that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and refinements can still be made, and these improvements and refinements should also be regarded as the protection scope of the present invention.

Claims

1. A taurine purification device, characterized in that: include: A cylindrical first centrifugal chamber (1), wherein a first filter cartridge (2) with an upper end opening is coaxially arranged in the first centrifugal chamber (1); the first filter cartridge (2) is connected to a feed pipe (3); and the first centrifugal chamber (1) is driven by a rotation source; The first filter barrel (2) is provided with a cleaning mechanism driven by a driving mechanism, and the cleaning mechanism discharges taurine impurities after primary centrifugation; the cleaning mechanism comprises a hollow first rotating rod (21) coaxially arranged in the first filter barrel (2); a plurality of slag suction holes (22) are provided on the peripheral wall of the first rotating rod (21), and a lifting auger (23) is coaxially arranged in the inner cavity of the first rotating rod (21); a plurality of arc-shaped scrapers (24) are also coaxially arranged on the outer wall of the first rotating rod (21), and the outer wall of the arc-shaped scraper (24) is in contact with the inner wall of the first filter barrel (2); The inner wall of the first centrifugal chamber (1) is slidably connected up and down with a suction mechanism, which is connected to a multi-stage separation mechanism; the multi-stage separation gradually increases the centrifugal force obtained by the material.

2. A taurine purification device according to claim 1, characterized in that: The suction mechanism comprises a lifting plate (4) adapted to the diameter of the first centrifugal chamber (1); a plurality of opening and closing holes (41) are downwardly provided on the upper end surface of the lifting plate (4); a sliding hole (42) and a plurality of liquid outlet holes (43) are penetrated through the bottom wall of each opening and closing hole (41); a floating rod (44) is slidably connected in the sliding hole (42); both ends of the floating rod (44) extend out of the lifting plate (4); a sinker ball (48) is provided on the lower end surface of the floating rod (44), and a cover plate (45) is coaxially provided on the upper end surface; the bottom surface of the cover plate (45) is larger than the diameter of the opening and closing hole (41).

3. A taurine purification device according to claim 2, characterized in that: A cylinder (46) is also provided. A sliding shaft (47) is provided on the axis of the lifting plate (4). The sliding shaft (47) is coaxially slidably connected to the first rotating rod (21); and the telescopic rod of the cylinder (46) is fixedly connected to the sliding shaft (47).

4. A taurine purification device according to claim 1, characterized in that: The multi-stage separation mechanism comprises a second centrifugal chamber (11) coaxially sleeved outside the first centrifugal chamber (1); a third centrifugal chamber (12) is coaxially sleeved outside the second centrifugal chamber (11); a columnar filter membrane (111) is arranged on the outer wall of the second centrifugal chamber (11), and a molecular filter membrane (121) is arranged on the bottom wall of the third centrifugal chamber (12); the filter pores of the columnar filter membrane (111) are larger than those of the molecular filter membrane (121); the molecular filter membrane (121) separates the third centrifugal chamber (12) from top to bottom, and the height of the molecular filter membrane (121) is lower than that of the columnar filter membrane (111); a liquid discharge port is arranged at the bottom of the third centrifugal chamber (12), and the liquid discharge port is connected to the outside through a first valve (122); and a slag discharge port is arranged at the bottom of the second centrifugal chamber (11), and the slag discharge port is connected to the outside through a second valve (112).

5. A taurine purification device according to claim 4, characterized in that: A liquid inlet cavity (31) is formed between the sliding shaft (47) and the first rotating rod (21); a funnel (32) is coaxially arranged on the upper end surface of the sliding shaft (47), and a liquid outlet at the bottom of the funnel (32) is in communication with the liquid inlet cavity (31).

6. A taurine purification device according to claim 1, characterized in that: A base (5) is also provided, the driving source being a first motor (51), the output shaft of the first motor (51) being coaxially fixedly connected to the bottom of the first centrifugal chamber (1); the first motor (51) being fixedly connected to the base (5); the first centrifugal chamber (1), the second centrifugal chamber (11) and the third centrifugal chamber (12) being rotatably connected to the base (5); and a plurality of support rods (52) being provided on the upper end surface of the base (5), and a support plate (521) being provided on the upper end surface of the support rods (52).

7. A taurine purification device according to claim 1, characterized in that: The driving mechanism comprises a second motor (53) fixedly arranged on the support plate (521); a first bevel gear (531) is coaxially arranged on the output shaft of the second motor (53); an end face of the first bevel gear (531) is perpendicular to an upper end face of the first rotating rod (21); a second bevel gear (532) and a third bevel gear (533) are respectively meshed on upper and lower sides of the first bevel gear (531); the second bevel gear (532) is coaxially fixedly connected to an upper end face of the lifting auger (23); and the third bevel gear (533) is coaxially fixedly connected to an upper end face of the first rotating rod (21).

8. A taurine purification device according to claim 1, characterized in that: include: A discharge pipe (6) is rotatably connected to the upper end surface of the first rotating rod (21); the discharge pipe (6) is fixedly connected to the support plate (521); the other end of the discharge pipe (6) can be connected to the waste bucket via a first pump pipe; the discharge pipe (3) is fixedly arranged on the support plate (521); the liquid inlet end of the discharge pipe (3) can be connected to the bucket via a second pump pipe; and the discharge pipe of the discharge pipe (3) is connected to the funnel (32).

9. A taurine purification method, applied to the taurine purification device according to claim 8, characterized in that: include: S1, the material enters the first filter cartridge (2), and primary separation of impurities and taurine supernatant is achieved under the action of the centrifugal force generated by the rotation of the first centrifugal chamber (1); S2, the arc-shaped scraper (24) rotates to scrape off impurities on the inner wall of the first filter cartridge (2), thereby ensuring smooth filtration of the first filter cartridge (2); at the same time, the plurality of rotating arc-shaped scrapers (24) gather the separated impurities toward the axis; S3, the lifting auger (23) rotates to suck the impurities gathered near the slag suction hole (22) into the inner cavity of the first rotating rod (21), and lifts the impurities; the lifted impurities are discharged into the waste barrel through the discharge pipe (6) under the negative pressure of the first pump pipe; S4, the lifting plate (4) filters and extracts the supernatant separated by the first centrifugal chamber; S5, after the material enters the second centrifugal chamber (11) and obtains a greater centrifugal force, it passes through the columnar filter membrane (111) and enters the third centrifugal chamber (12); after separation in the third centrifugal chamber (12), the solid matter remains in the third centrifugal chamber (12), and the liquid enters the discharge port through the molecular filter membrane (121) and is discharged.

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