Continuous crystallization, separation and purification device for methionine

Abstract

The utility model relates to the technical field of methionine production, in particular to a continuous crystallization, separation and purification device for methionine, which improves the integrity of equipment, reduces the size of the equipment, reduces the occupied space and improves the convenience during installation. Comprising a box body, a partition plate, a first transverse plate, a second transverse plate, a mother liquid feeding pipe, a liquid adding pipe, a precision filter, multiple sets of heating pipes, a communicating assembly, a stirring assembly, a cleaning assembly and a supporting assembly, the partition plate is fixedly installed on the left side of the interior of the box body, and the first transverse plate and the second transverse plate are installed between the side wall of the right end of the partition plate and the inner wall of the right side of the box body; a mother liquor storage cavity is formed between the left end of the box and the partition plate, an adsorption cavity is formed above the first transverse plate, a filtering cavity is formed between the first transverse plate and the second transverse plate, a finished product cavity is formed below the second transverse plate, a mother liquor feeding pipe is connected to the top of the box, the mother liquor storage cavity communicates with the adsorption cavity through a communicating assembly, and a liquor adding pipe is installed at the top of the adsorption cavity. Multiple groups of heating pipes are mounted on the front and rear sides of the adsorption cavity.

Description

Technical Field

[0001] The utility model relates to the technical field of methionine production, in particular to a methionine continuous crystallization and separation and purification device. Background Art

[0002] Methionine generally refers to methionine, which is an organic compound. It is one of the essential amino acids that constitute the human body. It is also the only sulfur-containing amino acid at present and an important feed additive variety. Under acidic conditions, sodium methionine solution is neutralized. The solution obtained after sodium methionine is neutralized by sulfuric acid mainly contains methionine and sodium sulfate. Then, methionine is separated in the form of crystals by crystallization. The mother liquor after separation of methionine (called secondary methionine mother liquor) still contains a certain amount of methionine and sodium sulfate. Therefore, it is preferred to recycle the mother liquor. In this case, all mother liquors are recycled, and impurities (organic impurities in the mother liquor and ammonium sulfate, ferrous sulfate, etc.) in the circulating mother liquor are accumulated, so it is necessary to discharge in a specified amount. However, the mother liquor is discharged as waste liquid, resulting in the loss of methionine and sodium sulfate contained therein, and the cost and consumables of waste liquid treatment are very high, which will increase environmental protection costs and reduce the yield of methionine and sodium sulfate. The method and device for removing impurities from secondary methionine mother liquor proposed in prior art publication number CN102827045B are as follows: heating the secondary methionine mother liquor to 30-100°C, then adding 1-10g of adsorbent to each liter of secondary methionine mother liquor, adsorbing for 10min-90min, and finally filtering the adsorbed secondary methionine mother liquor, wherein the adsorbent is diatomaceous earth, activated carbon or activated clay; the device of the present invention comprises a mother liquor storage tank to be treated, an adsorption tank, a filter and a finished mother liquor storage tank, wherein the mother liquor storage tank to be treated is connected to the inlet of the adsorption tank, the outlet of the adsorption tank is connected to the inlet of the filter, and the filtrate outlet of the filter is connected to the finished mother liquor storage tank. However, the number of equipment is large, the space occupied is large, and the practicality is poor. Utility Model Content

[0003] In order to solve the above technical problems, the utility model provides a methionine continuous crystallization and separation and purification device which improves the integrity of the equipment, reduces the equipment volume, reduces the space occupied, and improves the convenience during installation.

[0004] The utility model discloses a methionine continuous crystallization and separation and purification device, comprising a box body, a partition, a first transverse plate, a second transverse plate, a mother liquid feed pipe, a liquid adding pipe, a precision filter, a plurality of heating pipes, a connecting component, a stirring component, a cleaning component and a supporting component. A partition is fixedly installed on the left side of the interior of the box body, a first transverse plate and a second transverse plate are installed between the right end side wall of the partition and the right inner wall of the box body, a mother liquid storage chamber is formed between the left end of the box body and the partition, an adsorption chamber is above the first transverse plate, a filtration chamber is between the first transverse plate and the second transverse plate, a finished product chamber is below the second transverse plate, a mother liquid feed pipe is connected to the top of the box body, the mother liquid storage chamber is connected to the adsorption chamber through a connecting component, a liquid adding pipe is installed on the top of the adsorption chamber, a plurality of heating pipes are installed on the front and rear sides of the adsorption chamber, and a filter chamber is installed in the adsorption chamber. There is a stirring component, a precision filter is installed in the filter chamber, a cleaning component is installed above the precision filter, and a supporting component is fixedly installed on the bottom of the box; the box is supported and fixed by the supporting component to ensure stability during use, and a mother liquor storage chamber, an adsorption chamber, a filter chamber and a finished product chamber are arranged inside the box, which improves the integrity of the equipment, reduces the volume of the equipment, and reduces space occupancy. The adsorption chamber is heated and insulated by a heating pipe, and an adsorbent is added to the methionine mother liquor through a liquid adding pipe. The adsorbent and the methionine mother liquor are mixed by the stirring component, and then input into the filter chamber for filtration through a precision filter, thereby reducing the content of organic impurities. The finished product enters the finished product chamber, so that the quality of the obtained methionine and sodium sulfate products is further optimized, and impurities are cleaned by the cleaning component.

[0005] Preferably, the connecting component includes a suction pump, a suction pipe, multiple heaters and multiple heating rods. The suction pump is fixedly installed on the top of the box body. The input end of the suction pump is connected to the suction pipe. The input end of the suction pipe is input into the bottom of the mother liquor storage chamber. The output end of the suction pump passes through the top of the box body and is connected to the adsorption chamber. Multiple heaters are evenly installed on the left side wall of the box body. Multiple heating rods are connected to the heaters, and the heating rods are located in the mother liquor storage chamber. Methionine mother liquor is added to the mother liquor storage chamber through the mother liquor feed pipe, and the heater drives the heating rods to preheat the methionine mother liquor. Then, the suction pump is started to extract the methionine mother liquor through the suction pipe, and then input it into the adsorption chamber.

[0006] Preferably, the stirring assembly includes a guide bucket, a vertical rod, a driving box, two first rotating shafts, two first bevel gears, a transmission bevel gear, a transmission, a stirring motor, a plurality of first stirring rods and a plurality of first stirring blades. The middle part of the first horizontal plate is connected to the guide bucket, the middle part of the guide bucket is provided with an electromagnetic valve, the vertical rod is fixedly installed on the top of the adsorption chamber, the bottom of the vertical rod is installed with a driving box, the left and right ends of the vertical rod are rotatably installed with the first rotating shaft, the first bevel gear is installed on the first rotating shaft, the transmission bevel gear is rotatably installed inside the vertical rod, the first bevel gear is meshed with the transmission bevel gear, the other end of the first rotating shaft is rotatably installed on the left and right ends of the adsorption chamber respectively, and the first rotating shaft at the right end passes through the right side wall of the box body and is connected to the transmission The output end is connected, the input end of the transmission is connected to the output end of the stirring motor, a plurality of first stirring rods are evenly connected to the outer wall of the first rotating shaft, and a first stirring blade is installed at the end of the first stirring rod; the adsorbent is added into the adsorption chamber through the liquid adding pipe, the stirring motor is started to drive the first rotating shaft to rotate through the transmission, the first rotating shaft drives the first bevel gear to rotate, and the two first rotating shafts are rotated at the same time by cooperating with the transmission bevel gear, the first rotating shaft drives the first stirring rod and the first stirring blade to rotate, the methionine mother liquor and the adsorbent are stirred and mixed, and the treatment quality of the methionine mother liquor is ensured. After the mixing is completed, the solenoid valve is opened to guide the methionine mother liquor through the guide bucket and input it into the filter chamber.

[0007] Preferably, the stirring assembly also includes two second rotating shafts, two second bevel gears, multiple groups of second stirring rods and multiple groups of second stirring blades. The second rotating shafts are rotatably installed at the front and rear ends of the driving box, the second bevel gear is installed at the end close to the second rotating shaft, the second bevel gear is meshed with the transmission bevel gear, and the end of the second rotating shaft away from the second rotating shaft is rotatably installed on the front and rear end side walls of the adsorption chamber, and multiple second stirring rods are evenly installed on the outer wall of the second rotating shaft, and second stirring blades are installed at the ends of the second stirring rods; when the first rotating shaft drives the transmission bevel gear to rotate through the first bevel gear, the transmission bevel gear drives the second rotating shaft to rotate through the second bevel gear, and the second rotating shaft drives the second stirring rod and the second stirring blade to rotate, so as to stir the front and rear ends of the adsorption chamber, reduce the stirring dead angle, and improve the stirring and mixing quality.

[0008] Preferably, the cleaning component includes a rotating rod, a driver, a spiral conveying blade and a slag discharge pipe, the top of the precision filter is inclined toward the middle, an arc-shaped impurity groove is arranged in the middle of the precision filter, the right end of the arc-shaped impurity groove is connected to the slag discharge pipe, a valve is arranged on the slag discharge pipe, the rotating rod is rotatably installed in the arc-shaped impurity groove, the input end of the rotating rod passes through the filter chamber and is connected to the output end of the driver, and a spiral conveying blade is installed on the outer wall of the rotating rod; after the mother liquor is filtered through the precision filter, the impurities remain on the upper surface of the precision filter and flow into the arc-shaped impurity groove, the valve is opened, the driver is started to drive the rotating rod to rotate, the rotating rod drives the spiral conveying blade to rotate, the impurities in the arc-shaped impurity groove are pushed forward, and discharged through the slag discharge pipe, thereby improving the convenience of cleaning.

[0009] Preferably, a guide platform is installed at the bottom of the finished product cavity, the top of the guide platform is inclined downward, the lower front end of the finished product cavity is connected to a finished product pipe, a finished product valve is provided on the finished product pipe, and a guide bucket is installed in the middle of the second horizontal plate; the finished product liquid filtered by the precision filter falls to the top of the second horizontal plate, is gathered and guided into the finished product cavity by the guide bucket, the finished product valve is opened, and the finished product liquid is discharged through the finished product pipe. The guide platform can avoid the presence of residue in the finished product cavity, thereby improving practicality.

[0010] Preferably, the support assembly includes multiple support tubes, multiple screws and multiple adjusting nuts. The multiple support tubes are rotatably installed at the four corners of the bottom of the box. The lower part of the support tube is screwed with a screw, the lower part of the screw is provided with a fixed bottom plate, and the lower part of the outer wall of the support tube is installed with an adjusting nut. The equipment is supported and fixed by the support tube and the screw to ensure the stability of the equipment. The support tube is driven to rotate by the adjusting nut, which can facilitate the adjustment of the height of the box and improve the convenience during installation.

[0011] Compared with the prior art, the utility model has the following beneficial effects: the box body is supported and fixed by the supporting assembly to ensure stability during use; a mother liquor storage chamber, an adsorption chamber, a filter chamber and a finished product chamber are arranged inside the box body, thereby improving the integrity of the equipment, reducing the equipment volume, and reducing space occupancy; the adsorption chamber is heated and insulated by a heating tube; an adsorbent is added to the methionine mother liquor through a liquid adding tube; the adsorbent and the methionine mother liquor are mixed by a stirring assembly; and then the mixture is input into the filter chamber for filtration through a precision filter, thereby reducing the content of organic impurities; the finished product enters the finished product chamber, thereby optimizing the product quality of methionine and sodium sulfate; and impurities are cleaned by a cleaning assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural schematic diagram of the utility model;

[0013] Figure 2 It is a schematic diagram of the axonometric structure of the utility model;

[0014] Figure 3 It is a schematic diagram of the internal structure of the utility model;

[0015] Figure 4 It is a front cross-sectional structural schematic diagram of the utility model;

[0016] Figure 5 It is a left-side cross-sectional structural schematic diagram of the utility model;

[0017] Markings in the accompanying drawings: 1. box body; 2. partition; 3. first horizontal plate; 4. second horizontal plate; 5. mother liquor feed pipe; 6. liquid adding pipe; 7. heating pipe; 8. suction pump; 9. suction pipe; 10. guide bucket; 11. vertical rod; 12. drive box; 13. first rotating shaft; 14. first bevel gear; 15. transmission bevel gear; 16. transmission; 17. stirring motor; 18. first stirring rod; 19. first stirring blade; 20. guide bucket; 21. heater; 22. heating rod; 23. precision filter; 24. rotating rod; 25. driver; 26. spiral conveying blade; 27. slag discharge pipe; 28. second rotating shaft; 29. ​​second bevel gear; 30. second stirring rod; 31. second stirring blade; 32. guide platform; 33. finished product pipe; 34. support cylinder; 35. screw; 36. adjusting nut. DETAILED DESCRIPTION

[0018] 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.

[0019] Example 1

[0020] like Figure 1 , Figure 3 and Figure 4As shown, a partition plate 2 is fixedly installed on the left side of the interior of the box body 1, a first transverse plate 3 and a second transverse plate 4 are installed between the right end side wall of the partition plate 2 and the right inner wall of the box body 1, a mother liquid storage chamber is formed between the left end of the box body 1 and the partition plate 2, an adsorption chamber is above the first transverse plate 3, a filtration chamber is between the first transverse plate 3 and the second transverse plate 4, and a finished product chamber is below the second transverse plate 4. A mother liquid feed pipe 5 is connected to the top of the box body 1, the mother liquid storage chamber is connected to the adsorption chamber through a connecting component, a liquid adding pipe 6 is installed on the top of the adsorption chamber, and the adsorption chamber A plurality of groups of heating tubes 7 are installed on the front and rear sides, a precision filter 23 is installed in the filter cavity, a suction pump 8 is fixedly installed on the top of the box body 1, the input end of the suction pump 8 is connected to the suction tube 9, the input end of the suction tube 9 is input to the bottom of the mother liquid storage cavity, the output end of the suction pump 8 passes through the top of the box body 1 and is connected to the adsorption cavity, a plurality of heaters 21 are evenly installed on the left side wall of the box body 1, a plurality of heating rods 22 are connected to the heater 21, the heating rods 22 are located in the mother liquid storage cavity, and the middle part of the first horizontal plate 3 is connected to the suction tube 9. There is a guide bucket 10, a solenoid valve is arranged in the middle of the guide bucket 10, a vertical rod 11 is fixedly mounted on the top of the adsorption chamber, a driving box 12 is installed at the bottom of the vertical rod 11, a first rotating shaft 13 is rotatably mounted on the left and right ends of the vertical rod 11, a first bevel gear 14 is installed on the first rotating shaft 13, a transmission bevel gear 15 is rotatably mounted inside the vertical rod 11, the first bevel gear 14 is meshed with the transmission bevel gear 15, the other end of the first rotating shaft 13 is rotatably mounted on the left and right ends of the adsorption chamber, and the first rotating shaft 13 at the right end passes through the box The right side wall of the body 1 is connected to the output end of the transmission 16), the input end of the transmission 16) is connected to the output end of the stirring motor 17, a plurality of first stirring rods 18 are evenly connected to the outer wall of the first rotating shaft 13, and a first stirring blade 19 is installed at the end of the first stirring rod 18. A guide platform 32 is installed at the bottom of the finished product cavity, and the top of the guide platform 32 is tilted downward. A finished product pipe 33 is connected to the lower front end of the finished product cavity, and a finished product valve is arranged on the finished product pipe 33. A guide hopper 20 is installed in the middle of the second horizontal plate 4;

[0021] The mother liquor of methionine is added to the mother liquor storage chamber through the mother liquor feeding pipe 5, the heater 21 drives the heating rod 22 to preheat the mother liquor of methionine, and then the suction pump 8 is started to extract the mother liquor of methionine through the suction pipe 9, and then the mother liquor of methionine is input into the adsorption chamber, and the adsorption chamber is heated and kept warm through the heating pipe 7, and the adsorbent is added to the mother liquor of methionine through the liquid adding pipe 6, and the stirring motor 17 is started to drive the first rotating shaft 13 to rotate through the transmission 16, and the first rotating shaft 13 drives the first bevel gear 14 to rotate, and the two first rotating shafts 13 are synchronously driven by the transmission bevel gear 15. When the first rotating shaft 13 rotates, the first stirring rod 18 and the first stirring blade 19 are driven to rotate, so as to stir and mix the methionine mother liquor and the adsorbent to ensure the treatment quality of the methionine mother liquor. After the mixing is completed, the solenoid valve is opened to guide the methionine mother liquor through the guide bucket 10 and input it into the filter cavity. The finished product liquid filtered by the precision filter 23 falls to the top of the second horizontal plate 4, is gathered and guided into the finished product cavity by the guide bucket 20, the finished product valve is opened, and the finished product liquid is discharged through the finished product pipe 33. The guide platform 32 can avoid the presence of residue in the finished product cavity, thereby improving practicality.

[0022] Example 2

[0023] like Figure 2 and Figure 5 As shown, on the basis of Example 1, the second rotating shaft 28 is rotatably installed at the front and rear ends of the driving box 12, the second rotating shaft 28 is installed at the end close to the second rotating shaft 28. The second bevel gear 29 is meshed with the transmission bevel gear 15, and the end away from the second rotating shaft 28 is rotatably installed on the front and rear end side walls of the adsorption chamber. A plurality of second stirring rods 30 are evenly installed on the outer wall of the second rotating shaft 28, and a second stirring blade 31 is installed at the end of the second stirring rod 30. The top of the precision filter 23 is inclined toward the middle, and the precision filter An arc-shaped impurity groove is provided in the middle of the filter 23, and a slag discharge pipe 27 is connected to the right end of the arc-shaped impurity groove. A valve is provided on the slag discharge pipe 27. A rotating rod 24 is rotatably installed in the arc-shaped impurity groove. The input end of the rotating rod 24 passes through the filter cavity and is connected to the output end of the driver 25. A spiral conveying blade 26 is installed on the outer wall of the rotating rod 24. A plurality of supporting cylinders 34 are rotatably installed at the four corners of the bottom of the box body 1. A screw 35 is screwed on the lower part of the supporting cylinder 34. A fixed bottom plate is provided on the lower part of the screw 35. An adjusting nut 36 is installed on the lower part of the outer wall of the supporting cylinder 34.

[0024] When the first rotating shaft 13 drives the transmission bevel gear 15 to rotate through the first bevel gear 14, the transmission bevel gear 15 drives the second rotating shaft 28 to rotate through the second bevel gear 29, and the second rotating shaft 28 drives the second stirring rod 30 and the second stirring blade 31 to rotate, so as to stir the front and rear ends of the adsorption chamber, reduce the stirring dead angle, and improve the stirring and mixing quality. After the mother liquor is filtered through the precision filter 23, the impurities remain on the upper surface of the precision filter 23 and flow into the arc-shaped impurity groove. The valve is opened, and the driver 25 is started to drive the rotating rod 24 to rotate. The rotating rod 24 drives the spiral conveying blade 26 to rotate, and the impurities in the arc-shaped impurity groove are pushed to the left and discharged through the slag discharge pipe 27, thereby improving the convenience of cleaning. The equipment is supported and fixed by the support tube 34 and the screw 35 to ensure the stability of the equipment. The support tube 34 is driven to rotate by the adjusting nut 36, so that the height of the box body 1 can be easily adjusted, thereby improving the convenience during installation.

[0025] like Figures 1 to 5 As shown, a methionine continuous crystallization and separation and purification device of the utility model, when working, adds methionine mother liquor into the mother liquor storage chamber through the mother liquor feeding pipe 5, drives the heating rod 22 to preheat the methionine mother liquor through the heater 21, then starts the suction pump 8 to extract the methionine mother liquor through the suction pipe 9, and then inputs it into the adsorption chamber, adds adsorbent into the adsorption chamber through the liquid adding pipe 6, starts the stirring motor 17 to drive the first rotating shaft 13 to rotate through the transmission 16, and the first rotating shaft 13 drives the first bevel gear 14 to rotate, and through the cooperation with the transmission bevel gear 15, the two first rotating shafts 13 rotate at the same time, and the first rotating shaft 13 drives the first stirring rod 18 and the first stirring blade 19 to rotate, so as to stir and mix the methionine mother liquor and the adsorbent, and the first rotating shaft 13 drives the transmission bevel gear 14 through the first bevel gear 14 When the wheel 15 rotates, the transmission bevel gear 15 drives the second rotating shaft 28 to rotate through the second bevel gear 29, and the second rotating shaft 28 drives the second stirring rod 30 and the second stirring blade 31 to rotate, so as to stir the front and rear ends of the adsorption chamber to reduce the stirring dead angle. After the mixing is completed, the solenoid valve is opened to guide the methionine mother liquor through the guide bucket 10 and input it into the filter chamber. The finished product liquid filtered by the precision filter 23 falls to the top of the second horizontal plate 4, is gathered and guided into the finished product chamber by the guide bucket 20, the finished product valve is opened, and the finished product liquid is discharged through the finished product pipe 33. The impurities remain on the upper surface of the precision filter 23 and flow into the arc-shaped impurity groove. The valve is opened, and the driver 25 is started to drive the rotating rod 24 to rotate. The rotating rod 24 drives the spiral conveying blade 26 to rotate, and the impurities in the arc-shaped impurity groove are pushed to the left and discharged through the slag discharge pipe 27.

[0026] The suction pump 8, transmission 16), stirring motor 17, heater 21, heating rod 22, precision filter 23 and driver 25 of the continuous crystallization and separation and purification device of methionine of the utility model are purchased on the market, and technicians in the industry only need to install and operate them according to the accompanying instruction manual, without the need for technical personnel in the field to make creative labor.

[0027] 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 continuous crystallization and separation and purification device for methionine, characterized in that: The invention comprises a box body (1), a partition (2), a first transverse plate (3), a second transverse plate (4), a mother liquid feeding pipe (5), a liquid adding pipe (6), a precision filter (23), a plurality of heating pipes (7), a connecting component, a stirring component, a cleaning component and a supporting component. The partition (2) is fixedly installed on the left side of the box body (1). The first transverse plate (3) and the second transverse plate (4) are installed between the right end side wall of the partition (2) and the right inner wall of the box body (1). A mother liquid storage chamber is formed between the left end of the box body (1) and the partition (2). The first transverse plate (3) is provided with a plurality of heating pipes (7). The first horizontal plate (3) and the second horizontal plate (4) are an adsorption chamber, the filtering chamber is between the first horizontal plate (3) and the second horizontal plate (4), and the finished product chamber is below the second horizontal plate (4). The top of the box body (1) is connected to a mother liquid feeding pipe (5), the mother liquid storage chamber is connected to the adsorption chamber through a connecting component, a liquid adding pipe (6) is installed on the top of the adsorption chamber, a plurality of groups of heating pipes (7) are installed on the front and rear sides of the adsorption chamber, and a stirring component is installed in the adsorption chamber. A precision filter (23) is installed in the filtering chamber, and a cleaning component is installed above the precision filter (23). A supporting component is fixedly installed at the bottom of the box body (1).

2. A methionine continuous crystallization and separation and purification device as claimed in claim 1, characterized in that: The connecting component comprises a suction pump (8), a suction pipe (9), a plurality of heaters (21) and a plurality of heating rods (22); the suction pump (8) is fixedly mounted on the top of the housing (1); the input end of the suction pump (8) is connected to the suction pipe (9); the input end of the suction pipe (9) is input to the bottom of the mother liquid storage chamber; the output end of the suction pump (8) passes through the top of the housing (1) and is connected to the adsorption chamber; the plurality of heaters (21) are evenly mounted on the left side wall of the housing (1); the heaters (21) are connected to a plurality of heating rods (22); and the heating rods (22) are located in the mother liquid storage chamber.

3. The continuous crystallization and separation and purification device of methionine according to claim 1, characterized in that: The stirring assembly comprises a guide bucket (10), a vertical rod (11), a drive box (12), two first rotating shafts (13), two first bevel gears (14), a transmission bevel gear (15), a transmission (16), a stirring motor (17), a plurality of first stirring rods (18) and a plurality of first stirring blades (19). The middle part of the first horizontal plate (3) is connected with the guide bucket (10), the middle part of the guide bucket (10) is provided with a solenoid valve, the vertical rod (11) is fixedly installed on the top of the adsorption chamber, the bottom of the vertical rod (11) is provided with a drive box (12), the left and right ends of the vertical rod (11) are rotatably provided with the first rotating shaft (13), and the first rotating shaft (19) is provided with a plurality of first stirring blades (19). A first bevel gear (14) is installed on the vertical rod (13), a transmission bevel gear (15) is rotatably installed inside the vertical rod (11), the first bevel gear (14) is meshed with the transmission bevel gear (15), the other end of the first rotating shaft (13) is rotatably installed at the left and right ends of the adsorption chamber respectively, the right end of the first rotating shaft (13) passes through the right side wall of the box body (1) and is connected to the output end of the transmission (16), the input end of the transmission (16) is connected to the output end of the stirring motor (17), a plurality of first stirring rods (18) are evenly connected to the outer wall of the first rotating shaft (13), and the end of the first stirring rod (18) is installed with a first stirring blade (19).

4. A methionine continuous crystallization and separation and purification device as claimed in claim 3, characterized in that: The stirring assembly also includes two second rotating shafts (28), two second bevel gears (29), a plurality of second stirring rods (30) and a plurality of second stirring blades (31). The second rotating shafts (28) are rotatably mounted at the front and rear ends of the driving box (12). The second bevel gear (29) is mounted at the end close to the second rotating shaft (28). The second bevel gear (29) is meshed with the transmission bevel gear (15). The end away from the second rotating shaft (28) is rotatably mounted on the front and rear side walls of the adsorption chamber. A plurality of second stirring rods (30) are evenly mounted on the outer wall of the second rotating shaft (28). The second stirring blades (31) are mounted at the ends of the second stirring rods (30).

5. The continuous crystallization and separation and purification device for methionine according to claim 1, characterized in that: The cleaning assembly comprises a rotating rod (24), a driver (25), a spiral conveying blade (26) and a slag discharge pipe (27). The top of the precision filter (23) is inclined toward the middle. An arc-shaped impurity groove is arranged in the middle of the precision filter (23). The right end of the arc-shaped impurity groove is connected to the slag discharge pipe (27). A valve is arranged on the slag discharge pipe (27). The rotating rod (24) is rotatably installed in the arc-shaped impurity groove. The input end of the rotating rod (24) passes through the filter cavity and is connected to the output end of the driver (25). The spiral conveying blade (26) is installed on the outer wall of the rotating rod (24).

6. The continuous crystallization and separation and purification device for methionine according to claim 1, characterized in that: A guide platform (32) is installed at the bottom of the finished product chamber, the top of the guide platform (32) is tilted downward, a finished product pipe (33) is connected to the lower front end of the finished product chamber, a finished product valve is arranged on the finished product pipe (33), and a flow guide hopper (20) is installed in the middle of the second horizontal plate (4).

7. The continuous crystallization and separation and purification device for methionine according to claim 1, characterized in that: The support assembly comprises a plurality of support cylinders (34), a plurality of screw rods (35) and a plurality of adjusting nuts (36); the plurality of support cylinders (34) are rotatably mounted at the four corners of the bottom of the box body (1); the lower part of the support cylinder (34) is screwed with a screw rod (35); the lower part of the screw rod (35) is provided with a fixed bottom plate; and the lower part of the outer wall of the support cylinder (34) is installed with an adjusting nut (36).

Images