Glyphosate crystallization liquid filtering device

Abstract

The utility model discloses a glyphosate crystalline liquid filtering device, which comprises a rack, a driving roller, a driven roller, a vacuum belt, a driving mechanism, filter cloth, a cleaning device and a plurality of guide rollers, the driving roller and the driven roller are respectively and rotatably connected onto the rack, the vacuum belt is connected onto the driving roller and the driven roller, and the vacuum belt is connected onto the driving roller and the driven roller. The guide rollers are rotationally connected to the rack, the filter cloth is of an annular structure and is sequentially connected to the multiple guide rollers, the filter cloth surrounds the outer side of the vacuum belt, and a part of the filter cloth is attached to the upper surface of the vacuum belt to form an attached part; the driving mechanism is connected with the driving roller and is used for driving the driving roller to rotate so as to drive the vacuum belt to move, so that the vacuum belt drives the filter cloth to move; and the cleaning device comprises a cleaning roller, a cleaning tank and a spray-washing assembly. According to the utility model, the filter cloth can be cleaned and can be prevented from being blocked, so that the filtering effect of the filter cloth is prevented from becoming poor.

Description

Technical Field

[0001] This utility model relates to a glyphosate crystallization liquid filtration device. Background Technology

[0002] Currently, glyphosate is a widely used organophosphorus herbicide. In the production of glyphosate using the glycine-dimethyl ester process, the cooled glyphosate crystallization liquid needs to be filtered to extract glyphosate crystals. Chinese patent CN204543727U discloses a filtration and drying device for glyphosate production, which uses filter cloth to filter the glyphosate crystallization liquid. However, this device cannot clean the filter cloth during operation, and over time, particulate impurities accumulated on the filter cloth will clog it, thus affecting the filtration effect. Utility Model Content

[0003] The technical problem to be solved by this utility model is to overcome the defects of the prior art and provide a glyphosate crystal liquid filtration device that can clean the filter cloth, avoid the filter cloth from being blocked and thus avoid the filter cloth from deteriorating its filtration effect.

[0004] To solve the above-mentioned technical problems, the technical solution of this utility model is: a glyphosate crystallization liquid filtration device, including a frame, a drive roller, a driven roller, a vacuum belt, a drive mechanism, a filter cloth, a cleaning device, and multiple guide rollers;

[0005] The driving roller and the driven roller are rotatably connected to the frame, respectively.

[0006] The vacuum belt is connected to the driving roller and the driven roller;

[0007] The guide roller is rotatably connected to the frame;

[0008] The filter cloth has a ring structure and is sequentially connected to multiple guide rollers. The filter cloth is wrapped around the outside of the vacuum belt, and a portion of the filter cloth is attached to the upper surface of the vacuum belt to form an attachment area.

[0009] The drive mechanism is connected to the active roller and is used to drive the active roller to rotate, thereby driving the vacuum belt to move so that the vacuum belt drives the filter cloth to move.

[0010] The cleaning device includes a cleaning roller, a cleaning tank, and a spray washing assembly;

[0011] The cleaning roller is located in the cleaning tank, and the cleaning roller abuts against the filter cloth and is used to guide a portion of the filter cloth into the cleaning tank;

[0012] The spray washing assembly is located in the cleaning tank. The spray washing assembly is used to access soft water and spray the soft water onto the filter cloth that extends into the cleaning tank to clean the filter cloth.

[0013] Furthermore, the glyphosate crystallizer filtration device also includes a vacuum chamber, a cloth feeder, a first spray device, a second spray device, and a third spray device;

[0014] The vacuum box is located below the bonding part, the opening of the vacuum box faces upward and the upper end of the vacuum box slides against the lower surface of the vacuum belt in the bonding part, and the vacuum belt is provided with a drain hole;

[0015] The fabric feeder, the first spraying device, the second spraying device, and the third spraying device are all located above the bonding area and arranged sequentially from front to back;

[0016] The cloth feeder is used to collect glyphosate crystallizing liquid and discharge the collected glyphosate crystallizing liquid to the front end of the bonding part, so that the filter cloth in the bonding part can filter the glyphosate crystallizing liquid to obtain glyphosate crystals.

[0017] The first spraying device is used to receive the washing solution and spray the washing solution onto the glyphosate crystals on the bonding area;

[0018] The second spraying device and the third spraying device are respectively used to access soft water and spray soft water onto the glyphosate crystals on the bonding area.

[0019] Furthermore, the vacuum chamber is provided with a mother liquor collection chamber, a washing liquid collection chamber, a front soft water collection chamber, a rear soft water collection chamber, and a desiccation and filtration chamber arranged sequentially from front to back;

[0020] The openings of the mother liquor collection chamber, the washing liquid collection chamber, the front soft water collection chamber, the rear soft water collection chamber, and the desiccation and filtration chamber are respectively arranged facing upwards;

[0021] The fabric feeder is located above the mother liquor collection chamber;

[0022] The first spray device is located above the washing liquid collection chamber;

[0023] The second spray device is located above the front soft water collection chamber;

[0024] The third spray device is located above the rear soft water collection chamber.

[0025] Furthermore, the glyphosate crystallization filtration device also includes a pressing device, which is located above the bonding portion and behind the third spraying device. The pressing device is also located above the drying filtration chamber and is used to press the glyphosate crystals on the bonding portion.

[0026] Further, a specific structure of the pressing device is provided, the pressing device including a drive roller, a transition roller, a pressing roller, a pressing seat, a pressing cylinder, a pressing belt, and a rotary motor;

[0027] The drive roller and the transition roller are rotatably connected to the frame, respectively.

[0028] The clamping seat is slidably connected to the frame;

[0029] The clamping roller is rotatably connected to the clamping seat;

[0030] The clamping band is wrapped around and connected to the drive roller, the transition roller and the clamping roller;

[0031] The pressing cylinder is connected to the frame and to the pressing seat. The pressing cylinder is used to drive the pressing seat to move downward, thereby driving the pressing roller to move downward so that the pressing roller drives the pressing belt to press the glyphosate crystals on the bonding part.

[0032] The rotary motor is connected to the drive roller and is used to drive the drive roller to rotate, thereby driving the pressing belt to move.

[0033] Furthermore, the glyphosate crystallizer filtration device also includes a first storage tank, a second storage tank, a third storage tank, and a fourth storage tank;

[0034] The inlet of the first storage tank is connected to the mother liquor collection chamber in the vacuum box via a pipeline;

[0035] The inlet of the second storage tank is connected to the washing liquid collection chamber in the vacuum box via a pipeline;

[0036] The inlet of the third storage tank is connected to the front soft water collection chamber in the vacuum box via a pipeline;

[0037] The inlet of the fourth storage tank is connected to the post-soft water collection chamber and the dewatering and filtration chamber via pipelines.

[0038] Furthermore, the glyphosate crystallization liquid filtration device also includes a vacuum pump and a gas-liquid separator;

[0039] The vacuum pump is connected to the first storage tank, the second storage tank, the third storage tank, and the fourth storage tank respectively, and is used to evacuate the first storage tank, the second storage tank, the third storage tank, and the fourth storage tank;

[0040] The gas-liquid separator is connected to the outlet of the vacuum pump.

[0041] Furthermore, the glyphosate crystallizer filtration device also includes a mother liquor tank and a washing liquid tank; wherein, the outlets of the first storage tank and the second storage tank are respectively connected to the mother liquor tank, and the outlets of the third storage tank and the fourth storage tank are respectively connected to the washing liquid tank.

[0042] Furthermore, the glyphosate crystallization liquid filtration device also includes a first water pump, the inlet of which is connected to the washing liquid tank and the outlet of which is connected to the first spray device. The first water pump is used to pump the washing liquid in the washing liquid tank to the first spray device.

[0043] Furthermore, the glyphosate crystallizer filtration device also includes a soft water tank and a second water pump;

[0044] The inlet of the second water pump is connected to the soft water tank;

[0045] The outlet of the second water pump is connected to the washing assembly, the second spray device and the third spray device respectively. The second water pump is used to pump the soft water in the soft water tank to the washing assembly, the second spray device and the third spray device respectively.

[0046] The drain outlet of the cleaning tank is connected to the soft water pool.

[0047] With the above technical solution adopted, the bonding area includes an upper layer of filter cloth and a lower layer of vacuum belt, which are tightly bonded together. When the drive mechanism drives the active roller to rotate, the active roller can drive the vacuum belt to move, and the vacuum belt can then drive the filter cloth to move through the friction in the bonding area. During the movement of the filter cloth, the cleaning roller can always guide a portion of the filter cloth into the cleaning tank. Then, the spray washing assembly can access soft water and spray it onto the filter cloth extending into the cleaning tank to clean the filter cloth, thereby preventing the filter cloth from becoming clogged and avoiding a decrease in the filtration effect of the filter cloth. Attached Figure Description

[0048] Figure 1 This is a process flow diagram of the glyphosate crystallization liquid filtration device of this utility model;

[0049] Figure 2 for Figure 1 Detailed view of a section;

[0050] Figure 3 This is a schematic diagram of the cleaning device of this utility model;

[0051] In the diagram: 1. Driven roller; 2. Driven roller; 3. Vacuum belt; 4. Filter cloth; 5. Guide roller; 6. Bonding part; 7. Cleaning roller; 8. Cleaning tank; 9. Spray washing assembly; 10. Vacuum box; 11. Fabric spreader; 12. First spray device; 13. Second spray device; 14. Third spray device; 15. Mother liquor collection chamber; 16. Washing liquid collection chamber; 17. Front soft water collection chamber; 18. Rear soft water collection chamber; 19. Drainage and filtration chamber; 20. Pressing device; 21. Drive roller; 22. Transition roller; 23. Pressing roller; 24. Pressing belt; 25. First storage tank; 26. Second storage tank; 27. Third storage tank; 28. Fourth storage tank; 29. ​​Vacuum pump; 30. Gas-liquid separator; 31. Mother liquor tank; 32. Washing liquid tank; 33. First water pump; 34. Soft water tank; 35. Second water pump. Detailed Implementation

[0052] To make the contents of this utility model easier to understand, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings.

[0053] like Figures 1-3 As shown, a glyphosate crystallization liquid filtration device includes a frame, a drive roller 1, a driven roller 2, a vacuum belt 3, a drive mechanism, a filter cloth 4, a cleaning device, and multiple guide rollers 5;

[0054] The driving roller 1 and the driven roller 2 are rotatably connected to the frame, respectively;

[0055] The vacuum belt 3 is connected to the driving roller 1 and the driven roller 2;

[0056] The guide roller 5 is rotatably connected to the frame;

[0057] The filter cloth 4 has a ring structure and is connected to a plurality of guide rollers 5 in sequence. The filter cloth 4 is wrapped around the outside of the vacuum belt 3, and a part of the filter cloth 4 is attached to the upper surface of the vacuum belt 3 to form an attachment part 6.

[0058] The driving mechanism is connected to the active roller 1 and is used to drive the active roller 1 to rotate, thereby driving the vacuum belt 3 to move so that the vacuum belt 3 drives the filter cloth 4 to move; wherein, the vacuum belt 3 drives the filter cloth 4 to move through the friction of the bonding part 6;

[0059] The cleaning device includes a cleaning roller 7, a cleaning tank 8, and a spray washing assembly 9;

[0060] The cleaning roller 7 is located in the cleaning tank 8, and the cleaning roller 7 abuts against the filter cloth 4 and is used to guide a portion of the filter cloth 4 into the cleaning tank 8;

[0061] The spray washing component 9 is disposed in the cleaning tank 8. The spray washing component 9 is used to access soft water and spray the soft water onto the filter cloth 4 that extends into the cleaning tank 8 to clean the filter cloth 4.

[0062] Specifically, the bonding portion 6 includes an upper filter cloth 4 and a lower vacuum belt 3, which are tightly bonded together. When the drive mechanism drives the active roller 1 to rotate, the active roller 1 can drive the vacuum belt 3 to move, and the vacuum belt 3 can then drive the filter cloth 4 to move through the friction in the bonding portion 6. During the movement of the filter cloth 4, the cleaning roller 7 can always guide a portion of the filter cloth 4 into the cleaning tank 8. Then, the spray washing assembly 9 can access soft water and spray it onto the filter cloth 4 that has entered the cleaning tank 8 to clean the filter cloth 4, thereby preventing the filter cloth 4 from becoming clogged and avoiding a decrease in the filtration effect of the filter cloth 4. In this embodiment, the cleaning tank 8 can be connected to the frame and can catch the soft water sprayed onto the filter cloth 4 by the spray washing assembly 9 and then falling off. The cleaning roller 7 is rotatably connected to the frame. The spray washing assembly 9 can be connected in the cleaning tank 8. The driving mechanism can be a motor. The specific structures of the filter cloth 4 and the vacuum belt 3 are existing technologies well known to those skilled in the art, and will not be described in detail in this embodiment.

[0063] like Figure 1 , 2 As shown, the glyphosate crystallization liquid filtration device may further include a vacuum box 10, a cloth feeder 11, a first spray device 12, a second spray device 13, and a third spray device 14;

[0064] The vacuum box 10 is located below the bonding part 6. The opening of the vacuum box 10 faces upward and the upper end of the vacuum box 10 slides and fits against the lower surface of the vacuum belt 3 in the bonding part 6. The vacuum belt 3 is provided with a drain hole.

[0065] The fabric feeder 11, the first spray device 12, the second spray device 13 and the third spray device 14 are all located above the bonding part 6 and are arranged sequentially from front to back;

[0066] The cloth feeder 11 is used to receive glyphosate crystallization liquid and discharge the received glyphosate crystallization liquid to distribute it on the front end of the bonding part 6, so that the filter cloth 4 in the bonding part 6 can filter the glyphosate crystallization liquid to obtain glyphosate crystals 100.

[0067] The first spraying device 12 is used to receive the washing liquid and spray the washing liquid onto the glyphosate crystals 100 on the bonding part 6;

[0068] The second spraying device 13 and the third spraying device 14 are respectively used to access soft water and spray soft water onto the glyphosate crystals 100 on the bonding part 6; specifically, during the movement of the vacuum belt 3, the upper end of the vacuum box 10 always remains in sliding contact with the vacuum belt 3; in this embodiment, the fabric feeder 11 can be a slanted insert fabric feeder 11, and the specific structure of the slanted insert fabric feeder 11 is a prior art well known to those skilled in the art, and will not be described in detail in this embodiment.

[0069] like Figure 1 , 2 As shown, the vacuum chamber 10 may be provided with a mother liquor collection chamber 15, a washing liquid collection chamber 16, a front soft water collection chamber 17, a rear soft water collection chamber 18 and a desiccation and filtration chamber 19 arranged sequentially from front to back.

[0070] The openings of the mother liquor collection chamber 15, the washing liquid collection chamber 16, the front soft water collection chamber 17, the rear soft water collection chamber 18, and the desiccation and filtration chamber 19 are respectively arranged facing upwards.

[0071] The fabric feeder 11 is located above the mother liquor collection chamber 15;

[0072] The first spray device 12 is located above the washing liquid collection chamber 16;

[0073] The second spray device 13 is located above the front soft water collection chamber 17;

[0074] The third spray device 14 is located above the rear soft water collection chamber 18.

[0075] like Figure 1 , 2As shown, the glyphosate crystallizer filtration device may further include a pressing device 20, which is located above the bonding portion 6 and behind the third spraying device 14. The pressing device 20 is also located above the desiccation filtration chamber 19 and is used to press the glyphosate crystals 100 on the bonding portion 6. Specifically, the cloth feeder 11 discharges the incoming glyphosate crystallizer onto the front end of the bonding portion 6. The liquid in the glyphosate crystallizer passes through the filter cloth 4 in the bonding portion 6 and then flows through the drain hole on the vacuum belt 3 in the bonding portion 6 and falls into the mother liquor collection chamber 15 in the lower vacuum box 10. The glyphosate crystals 100 in the glyphosate crystallizer are filtered out by the filter cloth 4 in the bonding portion 6. The filtered glyphosate crystals 100 are conveyed backward by the vacuum belt 3 and filter cloth 4. During this backward conveying process, the glyphosate crystals 100 pass sequentially under the first spray device 12, the second spray device 13, the third spray device 14, and the pressing device 20, and finally fall off the filter cloth 4 at the end. During this process, the first spray device 12 sprays washing liquid onto the glyphosate crystals 100 on the bonding part 6 to wash the glyphosate crystals 100. The second spray device 13 and the third spray device 14 both spray soft water onto the glyphosate crystals 100 on the bonding part 6 to wash the glyphosate crystals 100. The pressing device 20 presses the glyphosate crystals 100 on the bonding part 6 to further remove the moisture. The washing liquid sprayed by the first spraying device 12 passes through the filter cloth 4 in the bonding part 6 and then flows through the drain hole on the vacuum belt 3 in the bonding part 6 and falls into the washing liquid collection chamber 16 in the lower vacuum box 10. The soft water sprayed by the second spraying device 13 passes through the filter cloth 4 in the bonding part 6 and then flows through the drain hole on the vacuum belt 3 in the bonding part 6 and falls into the front soft water collection chamber 17 in the lower vacuum box 10. The soft water sprayed by the third spraying device 14 passes through the filter cloth 4 in the bonding part 6 and then flows through the drain hole on the vacuum belt 3 in the bonding part 6 and falls into the rear soft water collection chamber 18 in the lower vacuum box 10. The water squeezed out by the pressing device 20 passes through the filter cloth 4 in the bonding part 6 and then flows through the drain hole on the vacuum belt 3 in the bonding part 6 and falls into the desiccation and filtration chamber 19 in the lower vacuum box 10.

[0076] like Figure 1 , 2 As shown, the pressing device 20 includes, for example but not limited to, the following structure: a drive roller 21, a transition roller 22, a pressing roller 23, a pressing seat, a pressing cylinder, a pressing belt 24, and a rotary motor;

[0077] The drive roller 21 and the transition roller 22 are rotatably connected to the frame, respectively;

[0078] The clamping seat is slidably connected to the frame;

[0079] The pressure roller 23 is rotatably connected to the pressure seat;

[0080] The clamping band 24 is connected around the drive roller 21, the transition roller 22 and the clamping roller 23;

[0081] The pressing cylinder is connected to the frame and to the pressing seat. The pressing cylinder is used to drive the pressing seat to move downward, thereby driving the pressing roller 23 to move downward so that the pressing roller 23 drives the pressing belt 24 to press the glyphosate crystals 100 on the bonding part 6, thereby squeezing out the water from the glyphosate crystals 100.

[0082] The rotary motor is connected to the drive roller 21 and is used to drive the drive roller 21 to rotate, thereby driving the pressing belt 24 to move; specifically, the linear velocity of the pressing belt 24 is equal to the linear velocity of the filter cloth 4 and the vacuum belt 3.

[0083] like Figure 1 As shown, the glyphosate crystallization liquid filtration device may further include a first storage tank 25, a second storage tank 26, a third storage tank 27, and a fourth storage tank 28;

[0084] The inlet of the first storage tank 25 is connected to the mother liquor collection chamber 15 in the vacuum box 10 via a pipeline;

[0085] The inlet of the second storage tank 26 is connected to the washing liquid collection chamber 16 in the vacuum box 10 via a pipeline;

[0086] The inlet of the third storage tank 27 is connected to the front soft water collection chamber 17 in the vacuum box 10 via a pipeline;

[0087] The inlet of the fourth storage tank 28 is connected to the post-soft water collection chamber 18 and the dewatering and filtration chamber 19 via pipelines.

[0088] like Figure 1 As shown, the glyphosate crystallization liquid filtration device may further include a vacuum pump 29 and a gas-liquid separator 30;

[0089] The vacuum pump 29 is connected to the first storage tank 25, the second storage tank 26, the third storage tank 27, and the fourth storage tank 28 respectively, and is used to evacuate the first storage tank 25, the second storage tank 26, the third storage tank 27, and the fourth storage tank 28. The gas-liquid separator 30 is connected to the outlet of the vacuum pump 29. The specific structures of the vacuum pump 29 and the gas-liquid separator 30 are existing technologies well known to those skilled in the art, and will not be described in detail in this embodiment. Specifically, after the first storage tank 25 is evacuated, the mother liquor collection chamber 15 is also under vacuum negative pressure. After the second storage tank 26 is evacuated, the washing liquid collection chamber 16 is also under vacuum negative pressure. After the third storage tank 27 is evacuated, the front soft water collection chamber 17 is also under vacuum negative pressure. After the fourth storage tank 28 is evacuated, the rear soft water collection chamber 18 and the desiccation filtration chamber 19 are also under vacuum negative pressure. This facilitates the rapid flow of liquid from the glyphosate crystallizer into the mother liquor collection chamber 15, the rapid flow of washing liquid sprayed by the first spraying device 12 into the washing liquid collection chamber 16, the rapid flow of soft water sprayed by the second spraying device 13 into the front soft water collection chamber 17, the rapid flow of soft water sprayed by the third spraying device 14 into the rear soft water collection chamber 18, and the rapid flow of water squeezed out by the pressing device 20 into the desiccation filtration chamber 19. Then the liquid in the mother liquor collection chamber 15 flows into the first storage tank 25, the liquid in the washing liquid collection chamber 16 flows into the second storage tank 26, the liquid in the front soft water collection chamber 17 flows into the third storage tank 27, and the liquid in the rear soft water collection chamber 18 and the desiccation and filtration chamber 19 flows into the fourth storage tank 28.

[0090] like Figure 1 As shown, the glyphosate crystallizer filtration device may further include a mother liquor tank 31 and a washing liquor tank 32; wherein the outlets of the first storage tank 25 and the second storage tank 26 are respectively connected to the mother liquor tank 31, and the outlets of the third storage tank 27 and the fourth storage tank 28 are respectively connected to the washing liquor tank 32, thereby enabling the liquid in the first storage tank 25 and the second storage tank 26 to be discharged into the mother liquor tank 31, and enabling the liquid in the third storage tank 27 and the fourth storage tank 28 to be discharged into the washing liquor tank 32. Valves are installed at the outlets of the first storage tank 25, the second storage tank 26, the third storage tank 27, and the fourth storage tank 28.

[0091] like Figure 1As shown, the glyphosate crystallization liquid filtration device may further include a first water pump 33. The inlet of the first water pump 33 is connected to the washing liquid tank 32, and the outlet of the first water pump 33 is connected to the first spray device 12. The first water pump 33 is used to pump the washing liquid in the washing liquid tank 32 to the first spray device 12, thereby enabling the first spray device 12 to receive the washing liquid and spray the washing liquid onto the glyphosate crystals 100.

[0092] like Figure 1 As shown, the glyphosate crystallizer filtration device may further include a soft water tank 34 and a second water pump 35.

[0093] The inlet of the second water pump 35 is connected to the soft water tank 34;

[0094] The outlet of the second water pump 35 is connected to the spray washing assembly 9, the second spray device 13, and the third spray device 14, respectively. The second water pump 35 is used to pump soft water from the soft water tank 34 to the spray washing assembly 9, the second spray device 13, and the third spray device 14, respectively. The drain outlet of the cleaning tank 8 is connected to the soft water tank 34. Specifically, the spray washing assembly 9 includes a water inlet pipe and a nozzle connected to the water inlet pipe. The second water pump 35 pumps soft water into the water inlet pipe, and then the soft water is sprayed from the nozzle onto the filter cloth 4 extending into the cleaning tank 8 to clean the filter cloth 4. The soft water sprayed onto the filter cloth 4 then falls into the cleaning tank 8 and flows back to the soft water tank 34 from the drain outlet of the cleaning tank 8. More specifically, the first spray device 12, the second spray device 13, and the third spray device 14 are all prior art, such as, but not limited to, spray heads.

[0095] In summary, the bonding portion 6 includes an upper filter cloth 4 and a lower vacuum belt 3, which are tightly bonded together. When the drive mechanism drives the active roller 1 to rotate, the active roller 1 can drive the vacuum belt 3 to move, and the vacuum belt 3 can then drive the filter cloth 4 to move through the friction in the bonding portion 6. During the movement of the filter cloth 4, the cleaning roller 7 can always guide a portion of the filter cloth 4 into the cleaning tank 8. Then, the spray washing assembly 9 can access soft water and spray it onto the filter cloth 4 that has entered the cleaning tank 8 to clean the filter cloth 4, thereby preventing the filter cloth 4 from becoming clogged and avoiding a decrease in the filtration effect of the filter cloth 4.

[0096] The specific embodiments described above further illustrate the technical problems, technical solutions, and beneficial effects of this utility model. It should be understood that the above descriptions are merely specific embodiments of this utility model and are not intended to limit this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A glyphosate crystallization liquid filtration device, characterized in that, It includes a frame, a drive roller (1), a driven roller (2), a vacuum belt (3), a drive mechanism, a filter cloth (4), a cleaning device, and multiple guide rollers (5); The driving roller (1) and the driven roller (2) are rotatably connected to the frame, respectively; The vacuum belt (3) is connected to the driving roller (1) and the driven roller (2); The guide roller (5) is rotatably connected to the frame; The filter cloth (4) has a ring structure and is connected to a plurality of guide rollers (5) in sequence. The filter cloth (4) is wrapped around the outside of the vacuum belt (3). A part of the filter cloth (4) is attached to the upper surface of the vacuum belt (3) to form an attachment part (6). The driving mechanism is connected to the active roller (1) and is used to drive the active roller (1) to rotate, thereby driving the vacuum belt (3) to move so that the vacuum belt (3) drives the filter cloth (4) to move; The cleaning device includes a cleaning roller (7), a cleaning tank (8), and a spray washing assembly (9); The cleaning roller (7) is located in the cleaning tank (8), and the cleaning roller (7) abuts against the filter cloth (4) and is used to guide a portion of the filter cloth (4) into the cleaning tank (8); The spray washing assembly (9) is located in the cleaning tank (8). The spray washing assembly (9) is used to access soft water and spray the soft water onto the filter cloth (4) that extends into the cleaning tank (8) to clean the filter cloth (4).

2. The glyphosate crystallization liquid filtration device according to claim 1, characterized in that, It also includes a vacuum box (10), a fabric distributor (11), a first spray device (12), a second spray device (13), and a third spray device (14); The vacuum box (10) is located below the fitting part (6), the opening of the vacuum box (10) faces upward and the upper end of the vacuum box (10) slides and fits against the lower surface of the vacuum belt (3) in the fitting part (6), and the vacuum belt (3) is provided with a drain hole. The fabric feeder (11), the first spray device (12), the second spray device (13) and the third spray device (14) are all located above the bonding part (6) and arranged sequentially from front to back; The cloth feeder (11) is used to receive glyphosate crystallization liquid and discharge the received glyphosate crystallization liquid to the front end of the bonding part (6), so that the filter cloth (4) in the bonding part (6) can filter the glyphosate crystallization liquid to obtain glyphosate crystals (100). The first spraying device (12) is used to receive the washing liquid and spray the washing liquid onto the glyphosate crystals (100) on the bonding part (6); The second spray device (13) and the third spray device (14) are respectively used to access soft water and spray soft water onto the glyphosate crystals (100) on the bonding part (6).

3. The glyphosate crystallization liquid filtration device according to claim 2, characterized in that, The vacuum chamber (10) is provided with a mother liquor collection chamber (15), a washing liquid collection chamber (16), a front soft water collection chamber (17), a rear soft water collection chamber (18), and a desiccation and filtration chamber (19) arranged from front to back. The openings of the mother liquor collection chamber (15), the washing liquid collection chamber (16), the front soft water collection chamber (17), the rear soft water collection chamber (18), and the desiccation and filtration chamber (19) are respectively arranged facing upwards; The fabric feeder (11) is located above the mother liquor collection chamber (15); The first spray device (12) is located above the washing liquid collection chamber (16); The second spray device (13) is located above the front soft water collection chamber (17); The third spray device (14) is located above the rear soft water collection chamber (18).

4. The glyphosate crystallization liquid filtration device according to claim 3, characterized in that, It also includes a pressing device (20) located above the bonding portion (6) and behind the third spraying device (14). The pressing device (20) is also located above the drying filter chamber (19) and is used to press the glyphosate crystals (100) on the bonding portion (6).

5. The glyphosate crystallization liquid filtration device according to claim 4, characterized in that, The pressing device (20) includes a drive roller (21), a transition roller (22), a pressing roller (23), a pressing seat, a pressing cylinder, a pressing belt (24), and a rotary motor; The drive roller (21) and the transition roller (22) are rotatably connected to the frame, respectively; The clamping seat is slidably connected to the frame; The clamping roller (23) is rotatably connected to the clamping seat; The clamping band (24) is connected around the drive roller (21), the transition roller (22) and the clamping roller (23); The pressing cylinder is connected to the frame and to the pressing seat. The pressing cylinder is used to drive the pressing seat to move downward, thereby driving the pressing roller (23) to move downward so that the pressing roller (23) drives the pressing belt (24) to press the glyphosate crystals (100) on the bonding part (6). The rotary motor is connected to the drive roller (21) and is used to drive the drive roller (21) to rotate, thereby driving the pressing belt (24) to move.

6. The glyphosate crystallization liquid filtration device according to claim 3, characterized in that, It also includes the first storage tank (25), the second storage tank (26), the third storage tank (27), and the fourth storage tank (28); The inlet of the first storage tank (25) is connected to the mother liquor collection chamber (15) in the vacuum box (10) through a pipeline. The inlet of the second storage tank (26) is connected to the washing liquid collection chamber (16) in the vacuum box (10) through a pipeline. The inlet of the third storage tank (27) is connected to the front soft water collection chamber (17) in the vacuum box (10) through a pipeline. The inlet of the fourth storage tank (28) is connected to the rear soft water collection chamber (18) and the desiccation and filtration chamber (19) through pipelines respectively.

7. The glyphosate crystallization liquid filtration device according to claim 6, characterized in that, It also includes a vacuum pump (29) and a gas-liquid separator (30); The vacuum pump (29) is connected to the first storage tank (25), the second storage tank (26), the third storage tank (27) and the fourth storage tank (28) respectively and is used to evacuate the first storage tank (25), the second storage tank (26), the third storage tank (27) and the fourth storage tank (28); The gas-liquid separator (30) is connected to the outlet of the vacuum pump (29).

8. The glyphosate crystallization liquid filtration device according to claim 6, characterized in that, It also includes a mother liquor tank (31) and a washing liquid tank (32); wherein the outlet of the first storage tank (25) and the outlet of the second storage tank (26) are respectively connected to the mother liquor tank (31), and the outlet of the third storage tank (27) and the outlet of the fourth storage tank (28) are respectively connected to the washing liquid tank (32).

9. The glyphosate crystallization liquid filtration device according to claim 8, characterized in that, It also includes a first water pump (33), the inlet of which is connected to the washing liquid tank (32), and the outlet of which is connected to the first spray device (12). The first water pump (33) is used to pump the washing liquid in the washing liquid tank (32) into the first spray device (12).

10. The glyphosate crystallization liquid filtration device according to claim 2, characterized in that, It also includes a soft water tank (34) and a second water pump (35); The inlet of the second water pump (35) is connected to the soft water tank (34); The outlet of the second water pump (35) is connected to the spray washing assembly (9), the second spray device (13) and the third spray device (14) respectively. The second water pump (35) is used to pump the soft water in the soft water tank (34) to the spray washing assembly (9), the second spray device (13) and the third spray device (14) respectively. The drain outlet of the cleaning tank (8) is connected to the soft water tank (34).

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