A glyphosate filtering device

Abstract

The utility model relates to filter equipment technical field, and disclose a kind of glyphosate filter equipment, including plate-and-frame filter press, the plate-and-frame filter press top end is provided with scraping component, and scraping component includes limit support and scraping unit;The scraping unit includes limit clamp, lifting frame and scraper, and limit clamp includes rectangular plate and two sets of clamping plate;Lifting frame is provided with lifting unit between limit support, and lifting unit includes moving frame, rack, gear and servo motor. Through the scraping component of double-sided scraping, under the cooperation of servo motor, gear, rack, can drive lifting frame to drive two sets of scraper synchronous scraping to remove filter plate both sides residual solid material, compared with traditional one side cleaning, significantly improve the efficiency and completeness of deslagging, avoid filter plate because of solid material adhesion influence filtration efficiency, effectively maintain the sustained and stable operation of equipment.

Description

Technical Field

[0001] This utility model relates to the field of filtration equipment technology, and in particular to a glyphosate filtration device. Background Technology

[0002] As an important intermediate in the preparation of pesticides such as glyphosate, glyphosate solution containing solid impurities is generated during its production process. This solution requires solid-liquid separation via filtration equipment to remove these impurities, ensuring the smooth progress of subsequent purification processes and the quality of the final product. In the glyphosate solution filtration stage, the pH value of the solution must first be adjusted to a suitable range of 2–7 before solid-liquid separation equipment is used to separate the impurities from the solution.

[0003] A search revealed that prior art CN111228867B discloses a plate and frame filter press, including a cooling or heating device, a frame, a feed inlet, a thrust plate, a filter plate assembly, a main beam, a pressing plate, a power cylinder, a tilting plate drive device, a tilting plate support device, and a tilting plate. The cooling or heating device is installed near the frame and includes a media circulation device and pipelines. The media circulation device includes a drive motor, a circulation pump, and a media storage device. It features the ability to adapt to different temperature requirements of the filtered material and reduces damage to the tilting plate and tilting plate support device.

[0004] The scraping devices of existing plate and frame filter presses are mostly designed for single-sided scraping, which cannot simultaneously clean the residual solid material on both sides of the filter plate, resulting in low cleaning efficiency. In addition, existing scraping devices lack an adaptive limiting structure for the filter frame, which makes the filter frame prone to shaking during the scraping process. This can easily lead to poor adhesion between the scraper and the filter plate, resulting in incomplete cleaning.

[0005] Therefore, this application proposes a glyphosate filtration device. Utility Model Content

[0006] To address the shortcomings of existing technologies, this invention provides a glyphosate filtration device that solves the problems mentioned in the background section.

[0007] To achieve the above objectives, the present invention adopts the following technical solution: A glyphosate filtration device includes a plate and frame filter press. The plate and frame filter press has a double-sided scraping assembly at its top. The scraping assembly includes a limiting frame and a scraping unit. The scraping unit includes a limiting clamp, a lifting frame, and scrapers. The limiting clamp includes a rectangular plate and two sets of clamping plates located at the bottom of the rectangular plate. The lifting frame is U-shaped, with its notch fixedly connected to the rectangular plate. Two sets of scrapers are fixed to the bottom of the lifting frame and symmetrically positioned on both sides of the rectangular plate. A lifting unit is provided between the lifting frame and the limiting frame. The lifting unit includes a moving frame, a rack, a gear, and a servo motor. An elastic adjusting element is provided between the rectangular plate and the two sets of clamping plates. The elastic adjusting element includes a sliding rod and a spring.

[0008] According to the aforementioned glyphosate filtration equipment, the limiting frame is fixedly installed at the top of the plate and frame filter press, and a solid material collection box is also provided at the bottom of the plate and frame filter press. The movable frame and the limiting frame are in a movable locking relationship.

[0009] According to the aforementioned glyphosate filtration device, the lifting frame and the rectangular plate are perpendicular to each other, the lifting frame moves through the moving frame, a rack is fixedly installed on one side of the outer wall of the lifting frame, and a guide rod is fixedly installed on the other side of the outer wall of the lifting frame.

[0010] According to the aforementioned glyphosate filtration device, a rectangular groove is formed between the top and bottom walls of the movable frame, and a first engaging groove is formed on both sides of the rectangular groove. The rack and guide rod move through the corresponding first engaging groove.

[0011] According to the aforementioned glyphosate filtration device, the lifting unit further includes two sets of mounting seats, a rotating shaft is fixedly passed through the gear shaft, the rotating shaft is movably installed between the two sets of mounting seats, the gear and the rack are movably meshed, the servo motor is fixedly installed on one side of the outer wall of the mounting seat, and the output shaft of the servo motor is fixedly connected to the rotating shaft of the gear shaft through a coupling.

[0012] According to the aforementioned glyphosate filtration device, a limiting frame is also fixedly installed at the top of the rectangular plate. The limiting frame is located between the rectangular plate and the moving frame. A second engaging groove is provided on both sides of the top of the limiting frame. The two ends of the lifting frame, the rack, and the guide rod all move through the corresponding second engaging groove.

[0013] According to the aforementioned glyphosate filtration device, sliding cavities are provided on both sides of the top of the rectangular plate. A slider is movably engaged in the sliding cavity. The slider is fixedly connected to the top of the corresponding clamping plate. A sliding rod is fixedly installed in the corresponding sliding cavity. The sliding rod moves through the corresponding slider. A spring is sleeved on the outer wall of the sliding rod. The two springs are located at the ends of the two sets of sliding rods that are far apart from each other.

[0014] According to the aforementioned glyphosate filtration device, both sets of clamping plates have positioning grooves at their bottom ends. The positioning grooves are trapezoidal and can be engaged with the hanging ears on both sides of the corresponding frame plate. The bottom ends of the two sets of clamping plates that are close to each other are inclined.

[0015] This invention provides a glyphosate filtration device. It has the following beneficial effects: (1) By first adjusting the pH value of the glyphosate solution to a reasonable range of 2 to 7, and then using a plate and frame filter press for solid-liquid separation, a good foundation is laid for subsequent filtration operations, ensuring the effectiveness of solid-liquid separation. At the same time, with the help of the double-sided scraping assembly, the servo motor, gears and racks can drive the lifting frame to drive two sets of scrapers to scrape off the residual solids on both sides of the filter plate in a synchronous manner. Compared with the traditional single-sided cleaning, the cleaning efficiency and thoroughness are significantly improved, and the filter plate is prevented from being affected by the adhesion of solids, thus effectively maintaining the continuous and stable operation of the equipment.

[0016] (2) By setting an elastic adjustment component in the limiting clamp, the spring is sleeved on the outer wall of the slide rod and the slide rod moves through the slider connected to the clamping plate, so that the two sets of clamping plates have adaptive clamping ability and can adapt to filter plates of different thicknesses or with dimensional deviations; at the same time, the trapezoidal positioning groove at the bottom of the clamping plate can engage the filter plate hanging ear, and its inclined surface can also guide the filter plate to fit the rectangular plate, effectively preventing the filter frame from shaking when scraping the material; in addition, the second engaging groove of the limiting frame and the first engaging groove of the moving frame together restrict the movement trajectory of the lifting frame, enhance the overall structural rigidity, improve the compatibility and operational stability of the scraping unit for filter plates of different specifications, and the buffering effect of the spring can reduce the rigid impact between the clamping plate and the filter plate, and extend the service life of both. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of a glyphosate filtration device according to the present invention; Figure 2 This is a perspective view of the scraping unit of a glyphosate filtration device according to the present invention; Figure 3 This is a schematic diagram showing the connection relationship between the rectangular plate and the lifting frame of a glyphosate filtration device according to this utility model; Figure 4 This is a schematic diagram showing the positional relationship between the moving frame and the lifting unit of a glyphosate filtration device according to this utility model; Figure 5 This is a three-dimensional structural diagram of the limiting frame of a glyphosate filtration device according to the present invention; Figure 6 This is a schematic diagram showing the connection relationship between the rectangular plate and the elastic adjusting component of a glyphosate filtration device according to this utility model.

[0018] Legend: 10. Plate-frame filter press; 11. Solid material collection box; 12. Limit frame; 13. Scraping unit; 14. Rectangular plate; 15. Lifting frame; 16. Moving frame; 17. Limit frame; 18. Scraper; 19. Rack; 20. First engaging groove; 21. Assembly seat; 22. Gear; 23. Servo motor; 24. Second engaging groove; 25. Clamping plate; 26. Positioning groove; 27. Slide cavity; 28. Slide block; 29. Slide rod; 30. Spring. Detailed implementation manners

[0019] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention.

[0020] Please refer to Figure 1-6 As shown, the present invention is a glyphosate filtering device, including a plate-frame filter press 10. The plate-frame filter press 10 is set as the main structure of the filtering device to perform solid-liquid separation on the glyphosate solution. A scraping component for double-sided scraping is provided at the top of the plate-frame filter press 10. The scraping component includes a limit frame 12 and a scraping unit 13. The limit frame 12 is fixedly installed at the top of the plate-frame filter press 10. A solid material collection box 11 is also provided at the bottom of the plate-frame filter press 10. By setting the scraping component, the residual solid materials on both sides of the filter plate can be cleaned simultaneously. The scraping unit 13 includes a limit fixture, a lifting frame 15 and a scraper 18. The limit fixture includes a rectangular plate 14 and two groups of clamping plates 25. The two groups of clamping plates 25 are located at the bottom of the rectangular plate 14. The lifting frame 15 is in a "U" shape, and the notch of the lifting frame 15 is fixedly connected to the rectangular plate 14. There are two groups of scrapers 18, and the two groups of scrapers 18 are fixed at the bottom of the lifting frame 15. The two groups of scrapers 18 are symmetrically located on both sides of the rectangular plate 14. During the preparation of glyphosate, first use ammonia water or sodium hydroxide to adjust the pH value of the glyphosate solution to between 2 and 7, and then use the filtering device to remove the solids existing in the adjusted glyphosate solution. In industry, a plate-frame filter press 10 is commonly used for solid-liquid separation. By setting the scraping component, the limit frame 12 is fixedly installed at the top of the plate-frame filter press 10, and the whole scraping unit 13 can move. The limit fixture can limit and clamp the lower filter frame to prevent the filter frame from shaking during the scraping process. When the lifting frame 15 descends, it带动 the scrapers 18 on both sides to scrape off the residual solid materials on both sides of the filter plate, significantly improving the slag cleaning efficiency and thoroughness, reducing the manual cleaning time and the problem of filter plate adhesion, and being beneficial to maintaining the filtering efficiency and the continuous operation of the equipment.

[0021] It is worth noting that a plate-frame filter press in the prior art (application number: CN202010283583.9) has been disclosed and will not be elaborated here.

[0022] As Figure 2-4As shown, a lifting unit is provided between the lifting frame 15 and the limiting frame 12. The lifting unit includes a moving frame 16, a rack 19, a gear 22, and a servo motor 23. The moving frame 16 and the limiting frame 12 are in a movable engagement relationship. The lifting frame 15 and the rectangular plate 14 are perpendicular to each other. The lifting frame 15 moves through the moving frame 16. The rack 19 is fixedly installed on one outer wall of the lifting frame 15, and a guide rod is fixedly installed on the other outer wall of the lifting frame 15. A rectangular groove is formed between the top and bottom walls of the moving frame 16. First engagement grooves 20 are formed on both sides of the rectangular groove. The rack 19 and the guide rod move through the corresponding first engagement grooves 20. A rectangular slot is opened through the moving frame 16, and a first engaging slot 20 is opened on both sides of the rectangular slot. A rack 19 is fixedly installed on one outer wall of the lifting frame 15, and a guide rod is fixedly installed on the other outer wall of the lifting frame 15. The rack 19 and the guide rod move through the corresponding first engaging slot 20 to ensure that the lifting frame 15 always moves in the vertical direction.

[0023] The lifting unit also includes two sets of mounting seats 21. A rotating shaft is fixedly inserted through the center of the gear 22, and the rotating shaft is movably installed between the two sets of mounting seats 21. The gear 22 meshes with the rack 19. A servo motor 23 is fixedly installed on one side of the outer wall of the mounting seat 21. The output shaft of the servo motor 23 is fixedly connected to the rotating shaft of the gear 22 via a coupling. A control cabinet is fixedly installed on one side of the plate and frame filter press 10. The control cabinet contains a PLC, a circuit breaker, and a control switch. The servo motor 23 is electrically connected to the PLC. By mounting the two sets of mounting seats 21 on the moving frame 16, and movably installing the gear 22 between the two sets of mounting seats 21 via the rotating shaft, the servo motor 23 is controlled by the PLC to rotate forward and backward during operation. The rotating shaft and gear 22 are driven to rotate via the coupling, and the gear 22 meshes with the rack 19, thereby controlling the lifting height of the lifting frame 15.

[0024] It should be noted that the servo motor 23 can be selected as a brake-type servo motor 23 according to process requirements.

[0025] like Figure 5-6As shown, an elastic adjustment element is provided between the rectangular plate 14 and the two sets of clamping plates 25. The elastic adjustment element includes a slide rod 29 and a spring 30. A limit frame 17 is also fixedly installed at the top of the rectangular plate 14. The limit frame 17 is located between the rectangular plate 14 and the moving frame 16. The limit frame 17 has a second engaging groove 24 through both sides of its top. The two ends of the lifting frame 15, the rack 19, and the guide rod all move through the corresponding second engaging groove 24. By setting the elastic adjustment element, the distance between the two sets of clamping plates 25 can be elastically adjusted, so that the clamping plates 25 have self-adaptive clamping ability and can adapt to filter plates of different thicknesses or with deviations. The limit frame 17 is fixedly installed on the rectangular plate 14. The limit frame 17 has a second engaging groove 24 through both sides of its top. The two ends of the lifting frame 15, the rack 19, and the guide rod all move through the corresponding second engaging groove 24, further restricting the degree of freedom of movement and enhancing the overall rigidity.

[0026] A sliding cavity 27 is provided through both sides of the top of the rectangular plate 14. A slider 28 is movably engaged in the sliding cavity 27. The slider 28 is fixedly connected to the top of the corresponding clamping plate 25. A sliding rod 29 is fixedly installed in the corresponding sliding cavity 27 and moves through the corresponding slider 28. A spring 30 is sleeved on the outer wall of the sliding rod 29. The two springs 30 are located at the ends of the two sets of sliding rods 29 that are far apart from each other. A positioning groove 26 is provided at the bottom of each set of clamping plates 25. The positioning groove 26 is trapezoidal and can be engaged with the hanging ears on both sides of the corresponding frame plate. The bottom ends of the two sets of clamping plates 25 that are close to each other are inclined. By setting a spring 30 sleeved on the outer wall of the slide rod 29, the slide rod 29 moves through the corresponding slider 28, the slider 28 is fixedly connected to the top of the corresponding clamping plate 25, the spring 30 provides a certain elastic clamping force to the clamping plate 25, and both sets of clamping plates 25 have positioning grooves 26 at their bottom ends. The positioning grooves 26 are trapezoidal and can be engaged with the hanging ears on both sides of the corresponding frame plate. The top of the frame plate is in contact with the bottom end of the rectangular plate 14, thereby restricting the movement of the frame plate. The bottom ends of the two sets of clamping plates 25 are set with slopes on the side closest to each other, which helps to guide and clamp the frame plate. The overall design improves the compatibility and operating efficiency of the scraping unit 13 for filter plates of different specifications. At the same time, the spring 30 buffer can reduce rigid impact and extend the service life of the clamping plate 25 and the frame plate.

[0027] The implementation principle of this utility model of a glyphosate filtration device is as follows: First, in the preparation process of glyphosate, the pH value of the glyphosate solution is adjusted to a reasonable range of 2-7 using ammonia or sodium hydroxide, laying the foundation for subsequent solid-liquid separation. Then, the plate and frame filter press 10, which is the main body of the equipment, is started, utilizing its core filtration function to perform solid-liquid separation on the adjusted glyphosate solution containing solid impurities. Simultaneously, a solid material collection box 11 is placed at the bottom of the plate and frame filter press 10 to collect the solid residue generated during subsequent cleaning, completing the preliminary preparation work before filtration.

[0028] Secondly, a control signal is sent from the PLC in the control cabinet on one side of the plate and frame filter press 10 to activate the scraping unit 13. First, the filter frame is fixed by the limiting clamp: the two sets of clamping plates 25 in the limiting clamp have self-adaptive clamping ability with the help of the elastic adjustment component. The spring 30 is sleeved on the outer wall of the slide rod 29. The slide rod 29 moves through the slider 28. The slider 28 is fixed to the top of the clamping plate 25 and can automatically adjust the distance according to the thickness of the filter plate. At the same time, the trapezoidal positioning groove 26 at the bottom of the clamping plate 25 is engaged with the hanging ears on both sides of the filter plate, and the inclined surface of the clamping plate 25 near the filter plate guides the filter plate to fit against the bottom of the rectangular plate 14, which completely avoids the filter frame from shaking during the scraping process and ensures the stability of the scraping.

[0029] Finally, the servo motor 23 is controlled by the PLC to operate, and the output shaft of the servo motor 23 drives the gear 22 to rotate via a coupling. Since the gear 22 meshes with the rack 19 on one side of the lifting frame 15, and the guide rod and rack 19 on the other side of the lifting frame 15 both move through the first engaging groove 20 of the moving frame 16 and the second engaging groove 24 of the limiting frame 17, the vertical movement of the lifting frame 15 can be strictly restricted. When the lifting frame 15 descends, the two sets of scrapers 18 symmetrically arranged at its bottom end simultaneously scrape off the solid impurities remaining on both sides of the filter plate, and the impurities fall directly into the solid material collection box 11 below. After the scraping is completed, the PLC controls the servo motor 23 to reverse, driving the lifting frame 15 to reset, waiting for the next filtration and cleaning cycle. The whole process significantly improves the cleaning efficiency and thoroughness, reduces manual intervention, and maintains the continuous and stable operation of the equipment.

[0030] The circuits, electronic components, and modules involved are all existing technologies, which can be fully implemented by those skilled in the art, and need not be elaborated upon. The content protected by this utility model does not involve any improvement to the software and methods.

[0031] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A glyphosate filtration device, comprising a plate and frame filter press (10), characterized in that: A scraping component for double-sided scraping is provided at the top of the plate-frame filter press (10). The scraping component includes a limiting frame (12) and a scraping unit (13). The scraping unit (13) includes a limiting clamp, a lifting frame (15) and a scraping knife (18). The limiting clamp includes a rectangular plate (14) and two groups of clamping plates (25). The two groups of clamping plates (25) are located at the bottom end of the rectangular plate (14). The lifting frame (15) is in a "C" shape. The notch of the lifting frame (15) is fixedly connected to the rectangular plate (14). There are two groups of scraping knives (18). The two groups of scraping knives (18) are fixed at the bottom end of the lifting frame (15). The two groups of scraping knives (18) are symmetrically located on both sides of the rectangular plate (14). A lifting unit is provided between the lifting frame (15) and the limiting frame (12). The lifting unit includes a moving frame (16), a rack (19), a gear (22) and a servo motor (23). An elastic adjusting member is provided between the rectangular plate (14) and the two groups of clamping plates (25). The elastic adjusting member includes a sliding rod (29) and a spring (30).

2. The glyphosate filtration device according to claim 1, characterized in that: The limiting frame (12) is fixedly installed at the top of the plate-frame filter press (10). A solid material collection box (11) is further provided at the bottom end of the plate-frame filter press (10). There is an active clamping relationship between the moving frame (16) and the limiting frame (12).

3. The glyphosate filtration device according to claim 1, characterized in that: The lifting frame (15) and the rectangular plate (14) are perpendicular to each other. The lifting frame (15) movably penetrates the moving frame (16). A rack (19) is fixedly installed on one outer wall surface of the lifting frame (15). A guide rod is fixedly installed on the other outer wall surface of the lifting frame (15).

4. The glyphosate filtration device according to claim 1, characterized in that: A rectangular groove is penetrated and opened between the top and bottom wall surfaces of the moving frame (16). First clamping grooves (20) are opened on both sides of the rectangular groove. The rack (19) and the guide rod movably penetrate the corresponding first clamping grooves (20).

5. The glyphosate filtration device according to claim 1, characterized in that: The lifting unit further includes two groups of mounting seats (21). A rotating shaft is fixedly penetrated through the center of the gear (22). The rotating shaft is movably installed between the two groups of mounting seats (21). The gear (22) is movably meshed with the rack (19). The servo motor (23) is fixedly installed on one outer wall of the mounting seat (21). The output shaft of the servo motor (23) is fixedly connected to the rotating shaft at the center of the gear (22) through a coupling.

6. The glyphosate filtration device according to claim 1, characterized in that: A limiting frame (17) is further fixedly installed at the top of the rectangular plate (14). The limiting frame (17) is located between the rectangular plate (14) and the moving frame (16). Second clamping grooves (24) are penetrated and opened on both sides at the top of the limiting frame (17). Both ends of the lifting frame (15), the rack (19) and the guide rod movably penetrate the corresponding second clamping grooves (24).

7. The glyphosate filtration device according to claim 1, characterized in that: Sliding cavities (27) are penetrated and opened on both sides at the top of the rectangular plate (14). Sliders (28) are movably clamped in the sliding cavities (27). The sliders (28) are fixedly connected to the top ends of the corresponding clamping plates (25). The sliding rods (29) are fixedly installed in the corresponding sliding cavities (27). The sliding rods (29) movably penetrate the corresponding sliders (28). The springs (30) are sleeved on the outer walls of the sliding rods (29). The two springs (30) are located at one ends of the two groups of sliding rods (29) away from each other.

8. The glyphosate filtration device according to claim 1, characterized in that: Both sets of clamps (25) have positioning grooves (26) at their bottom ends. The positioning grooves (26) are trapezoidal and can be engaged with the hanging ears on both sides of the corresponding frame plate. The bottom ends of the two sets of clamps (25) that are close to each other are inclined.

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