A device for removing impurities from a difenzoquat mother liquor

Abstract

The utility model provides a kind of fluthrin mother liquor impurity removal device, it is related to herbicide processing technical field, including impurity removal box;The device can effectively improve fluthrin mother liquor purity by preliminary filtration, PP filter core high-precision filtration, activated carbon adsorption multi-step impurity removal, and each component is convenient to maintain replacement, guarantee the sustainability of impurity removal effect.

Description

Technical Field

[0001] This utility model relates to the field of herbicide processing technology, and more specifically, to a device for removing impurities from pyrifluquinazon mother liquor. Background Technology

[0002] Pyrfluthrin is an amide herbicide and belongs to the class of carotenoid biosynthesis inhibitors. It inhibits phytoene dehydrogenase in weeds, blocking carotenoid synthesis, causing weed seedlings to decolorize, wilt, and die. During the preparation of its mother liquor, various impurities may be mixed in. If these impurities are not effectively removed, the efficacy and quality of pyrfluthrin will be affected. Traditional impurity removal methods have problems such as insufficient filtration precision and incomplete impurity removal. Utility Model Content

[0003] The purpose of this invention is to solve the problems mentioned in the background art, and to propose a device for removing impurities from pyrifluquinazon mother liquor.

[0004] The technical solution adopted by this utility model to solve its technical problem is: A device for removing impurities from pyrifluquinazon mother liquor, comprising an impurity removal box, The top and bottom of the waste removal box are respectively connected to the feed hopper and the discharge channel; The feed hopper is symmetrically fixed with support plates, and the top of the feed hopper is movably installed with a cover plate, and the cover plate has a feed pipe. The primary filter assembly is connected to the cover plate, and the primary filter assembly is attached to the inner wall of the feed hopper and in contact with the support plate; The partition divides the impurity removal box into upper and lower chambers. The upper chamber is equipped with a PP filter cartridge connected to the outlet of the feed hopper via a pipeline. The partition is equipped with a flow pipe connected to the output end of the PP filter cartridge and the end of the flow pipe extends into the lower chamber. The adsorption box is placed on the support of the impurity removal box and connected to the discharge channel; The adsorption assembly is installed inside the adsorption chamber.

[0005] Furthermore, the cover plate and the upper surface of the feed hopper are fixed with two sets of ear plates that are directly opposite each other, and each set of ear plates is fitted with fixing bolts.

[0006] Furthermore, the cover plate is circumferentially fixed with an insert block, and the feed hopper is circumferentially provided with a slot that cooperates with the insert block, and a corrosion-resistant sealing strip is provided in the slot.

[0007] Furthermore, the preliminary filtration assembly includes a connecting rod and a filter plate. Connecting rods are symmetrically welded to the inner side of the cover plate; The filter plate, which is in contact with the inner wall of the feed hopper, is connected to the connecting rod, and the filter plate comes into contact with the support plate after the cover plate is installed.

[0008] Furthermore, the adsorption assembly includes a porous plate and an activated carbon column. The porous plate is fixed inside the adsorption box, and activated carbon columns with a diameter larger than the pore size of the porous plate are laid flat in batches on the porous plate.

[0009] Furthermore, both the feed pipe and the flow pipe are equipped with one-way valves that allow only inflow and not outflow.

[0010] Furthermore, a suction pump connected to the bottom area inside the adsorption box is fixed on the adsorption box, and the output end of the suction pump is connected to the storage container.

[0011] Furthermore, the impurity removal box is rotatably connected to a side door facing the upper cavity, and a transparent observation window is provided in the impurity removal box area corresponding to the lower cavity.

[0012] Furthermore, the adsorption box has an inlet that matches the size of the discharge channel, and the bottom of the discharge channel is flush with the surface of the adsorption box.

[0013] Compared with the prior art, the beneficial effects of this utility model are: 1. Excellent impurity removal effect and high purity: Through a multi-stage impurity removal process, including the initial filtration component intercepting large particulate impurities, the PP filter cartridge removing fine particulate impurities, and the activated carbon column adsorbing residual impurities and odors, the pyrifluquinazon mother liquor is purified in an all-round and high-precision manner, significantly improving the purity of the mother liquor and ensuring the efficacy and quality of pyrifluquinazon. 2. Reasonable structural design and convenient operation: One-way valves in the feed pipe and flow pipe ensure unidirectional liquid flow and avoid backflow contamination; the side-opening door and transparent observation window facilitate maintenance of the PP filter cartridge and observation of the mother liquor status; the preliminary filtration component can be quickly cleaned or replaced by removing the cover plate; the PP filter cartridge can be replaced through the side-opening door; the adsorption box can be moved and the activated carbon column can be replaced. Convenient maintenance of each key component ensures that the device can maintain a good impurity removal effect for a long time and reduce operating costs. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of a side-opening door; Figure label: 1. Impurity removal box; 2. Feed hopper; 3. Discharge channel; 4. Support plate; 5. Cover plate; 6. Feed pipe; 7. Preliminary filtration assembly; 71. Connecting rod; 72. Filter plate; 8. Partition plate; 9. PP filter cartridge; 10. Flow pipe; 11. Adsorption box; 111. Perforated plate; 12. Ear plate; 13. Fixing bolt; 14. One-way valve; 15. Suction pump; 16. Side door; 17. Transparent observation window. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present utility model, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model. The present utility model will be further described with reference to the accompanying drawings and embodiments: like Figure 1 and Figure 2 As shown, a device for removing impurities from pyrifluquinazon mother liquor includes an impurity removal box 1. The top and bottom of the impurity removal box 1 are respectively connected to the feed hopper 2 and the discharge channel 3; A support plate 4 is symmetrically fixed inside the feed hopper 2, and a cover plate 5 is movably installed on the top of the feed hopper 2, with a feed pipe 6 opened on the cover plate 5; The preliminary filter assembly 7 is connected to the cover plate 5, and the preliminary filter assembly 7 is attached to the inner wall of the feed hopper 2 and in contact with the support plate 4; The partition 8 divides the impurity removal box 1 into upper and lower chambers. The upper chamber is equipped with a PP filter cartridge 9 that is connected to the outlet of the feed hopper 2 through a corrosion-resistant pipe (not shown in the figure). The partition 8 is equipped with a flow pipe 10 that is connected to the output end of the PP filter cartridge 9 and the end of the flow pipe 10 extends into the lower chamber. (It should be noted that the flow pipe 10 and the partition 8 are coated with sealant (the sealant is a pesticide-resistant silicone sealant) to prevent the mother liquor from overflowing upward from the gap between them. In addition, the input end of the PP filter cartridge 9 is connected to one end of the pipe through a flange, and the other end of the pipe is connected to the outlet of the feed hopper through a flange.) The adsorption box 11 is placed on the support of the impurity removal box 1 and connected to the discharge channel 3 (specifically, the adsorption box 11 and the support of the impurity removal box 1 are detachably fixed by bolts to ensure stable installation). The adsorption assembly is installed inside the adsorption box 11.

[0016] To enable flexible disassembly of the cover plate 5 and the feed hopper 2 for cleaning and maintenance of the filter components, further optimizations to the above-described embodiments are made, such as... Figure 1 and Figure 2 As shown, two sets of ear plates 12 are fixedly arranged opposite each other on the upper surface of the cover plate 5 and the feed hopper 2, and each set of ear plates 12 is fitted with a fixing bolt 13. Based on this, in order to further improve the sealing effect after both are installed, the above embodiment is further optimized. The cover plate 5 is fixed with a plug in the circumferential direction, and the feed hopper 2 is provided with a slot in the circumferential direction to cooperate with the plug. The slot is provided with a corrosion-resistant sealing strip. The plug, slot and corrosion-resistant sealing strip are not shown in the figure. The corrosion-resistant sealing strip is made of fluororubber and has a circular cross section. It is press-fitted with the slot to prevent leakage of mother liquor.

[0017] Specific implementation of this utility model solution, such as Figure 1 As shown, the preliminary filtration assembly 7 includes a connecting rod 71 and a filter plate 72. Connecting rods 71 ​​are symmetrically welded to the inner side of the cover plate 5; The filter plate 72, which is in contact with the inner wall of the feed hopper 2, is connected to the connecting rod 71 by bolts, and the filter plate 72 comes into contact with the support plate 4 after the cover plate 5 is installed.

[0018] Specific implementation of this utility model solution, such as Figure 1 As shown, the adsorption assembly includes a porous plate 111 and an activated carbon column. The porous plate 111 is fixed inside the adsorption box 11, and activated carbon columns with a diameter larger than the pore size of the porous plate 111 are laid flat on the porous plate 111 in batches. The activated carbon columns are not shown in the figure.

[0019] To prevent liquid backflow and ensure the one-way nature of the impurity removal process, the above embodiment is further optimized by installing one-way valves 14 on both the feed pipe 6 and the flow pipe 10.

[0020] To achieve automated, targeted transfer and collection of the pyrifluquinazon mother liquor after impurity removal, further optimizations to the above-described embodiments are needed, such as... Figure 2 As shown, a suction pump 15 is fixed on the adsorption box 11, which communicates with the bottom area inside. The output end of the suction pump 15 is connected to the storage container, which is not shown in the figure. In a further optimization of the above embodiment, the suction pump 15 is connected to an external power supply and a PLC controller (the PLC controller is not labeled in the figure) via wires, and the start and stop can be controlled manually by the PLC controller; Alternatively, a liquid level sensor can be used (the liquid level sensor is installed at the bottom of the adsorption tank 11 and is electrically connected to the suction pump 15) to achieve automatic start and stop. When the mother liquor in the adsorption tank 11 reaches the set liquid level, the suction pump 15 will automatically start to pump the liquid.

[0021] To facilitate the disassembly and replacement of the PP filter element, the above embodiment is further optimized by rotatably connecting a side door 16 to the upper cavity of the impurity removal box 1, and providing a transparent observation window 17 in the box area of ​​the impurity removal box 1 corresponding to the lower cavity (specifically, the side door 16 and the impurity removal box 1 can be locked by a pin structure, which is an existing technology and is not shown in the figure; specifically, it is a spring pin, which is installed at the free end of the side door 16, and a pin hole is provided at the corresponding position on the side wall of the impurity removal box 1; pressing the pin can lock or unlock, which is convenient and quick to open and close).

[0022] To facilitate the flow of pyrifluquinazon mother liquor into the adsorption tank 11 and reduce splashing, the above embodiment is further optimized by providing an inlet on the adsorption tank 11 that matches the size of the discharge channel 3. The bottom of the discharge channel 3 is flush with the surface of the adsorption tank 11, and the inlet is not shown in the figure.

[0023] The working process of this utility model: 1. Preliminary filtration stage: Pyrfluthrin mother liquor is poured in through feed pipe 6. After entering feed hopper 2, the mother liquor first passes through filter plate 72 in the preliminary filtration assembly 7 for preliminary filtration to intercept larger particles of impurities. 2. PP Filter Cartridge Filtration Stage: After preliminary filtration, the mother liquor enters the PP filter cartridge 9 in the upper cavity of the impurity removal box 1 through pipelines. The PP filter cartridge performs high-precision filtration of the mother liquor, removing fine particulate impurities (specifically, the PP filter cartridge 9 has a built-in pleated PP filter cartridge (filtration accuracy of 1-5μm), which removes fine particulate impurities (such as suspended particles, colloidal particles, etc.) in the mother liquor through the deep interception and sieving action of the filter cartridge, achieving high-precision filtration). 3. Circulation stage: The mother liquor filtered by the PP filter element enters the lower cavity of the impurity removal box 1 through the flow pipe 10 and flows out from the discharge channel; 4. Adsorption and impurity removal stage: The mother liquor enters the adsorption box 11 from the discharge channel 3 and passes through the activated carbon column on the porous plate 111. The activated carbon column adsorbs the residual impurities and odors in the mother liquor. 5. Collection stage: During the impurity removal process, start the suction pump 15 to draw the purified pyrifluquinazon mother liquor after adsorption into the storage container to complete the collection; Throughout the process, the filter element in the PP filter cartridge 9 can be disassembled and replaced by operating the side door 16 of the impurity removal box 1. In addition, the state of the mother liquor in the lower chamber can be observed through the transparent observation window 17. When it is necessary to clean the preliminary filtration component 7, the fixing bolts 13 on the ear plate 12 can be unscrewed, the cover plate 5 can be opened, and then the filter plate 72 can be removed for cleaning or replacement. The activated carbon column in the adsorption box 11 can also be replaced according to the usage to ensure the continuity of the impurity removal effect (when replacing, the adsorption box is moved horizontally away from the impurity removal box support, then the connection between the suction pump and the storage container is disconnected, and then the adsorption box is inverted to pour out the activated carbon column, and then a new activated carbon column can be added again).

[0024] 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 descriptions of the above embodiments and specifications 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 protection claimed by this utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A device for removing impurities from pyrifluquinazon mother liquor, characterized in that, Includes a waste removal box (1). The top and bottom of the impurity removal box (1) are respectively connected to the feed hopper (2) and the discharge channel (3); A support plate (4) is symmetrically fixed inside the feed hopper (2), and a cover plate (5) is movably installed on the top of the feed hopper (2), and a feed pipe (6) is opened on the cover plate (5). The preliminary filter assembly (7) is connected to the cover plate (5), and the inner wall of the preliminary filter assembly (7) and the feed hopper (2) are attached and in contact with the support plate (4); The partition (8) divides the impurity removal box (1) into upper and lower chambers. The upper chamber is equipped with a PP filter cartridge (9) that is connected to the outlet of the feed hopper (2) through a pipeline. The partition (8) is equipped with a flow pipe (10) that is connected to the output end of the PP filter cartridge (9) and the end of the flow pipe (10) extends into the lower chamber. The adsorption box (11) is placed on the support of the impurity removal box (1) and connected to the discharge channel (3); The adsorption assembly is installed inside the adsorption box (11).

2. The pyrifluquinazon mother liquor impurity removal device according to claim 1, characterized in that, The cover plate (5) and the upper surface of the feed hopper (2) are fixed with two sets of ear plates (12) that are directly opposite each other, and each set of ear plates (12) is fitted with a fixing bolt (13).

3. The pyrifluquinazon mother liquor impurity removal device according to claim 2, characterized in that, The cover plate (5) is fixed with an insert block in the circumferential direction, and the feed hopper (2) is provided with a slot in the circumferential direction that matches the insert block, and a corrosion-resistant sealing strip is provided in the slot.

4. The pyrifluquinazon mother liquor impurity removal device according to claim 1, characterized in that, The preliminary filtration assembly (7) includes a connecting rod (71) and a filter plate (72). Connecting rods (71) are symmetrically welded to the inner side of the cover plate (5); The filter plate (72) that is in contact with the inner wall of the feed hopper (2) is connected to the connecting rod (71), and the filter plate (72) comes into contact with the support plate (4) after the cover plate (5) is installed.

5. The pyrifluquinazon mother liquor impurity removal device according to claim 1, characterized in that, The adsorption assembly includes a porous plate (111) and an activated carbon column. The porous plate (111) is fixed inside the adsorption box (11), and activated carbon columns with a diameter larger than the pore size of the porous plate (111) are laid flat on the porous plate (111).

6. The pyrifluquinazon mother liquor impurity removal device according to claim 1, characterized in that, Both the feed pipe (6) and the flow pipe (10) are equipped with one-way valves (14) that allow only the feed to enter and not the flow.

7. The pyrifluquinazon mother liquor impurity removal device according to claim 1, characterized in that, The adsorption box (11) is fixedly equipped with a suction pump (15) that communicates with the bottom area inside it, and the output end of the suction pump (15) is connected to the storage container.

8. The pyrifluquinazon mother liquor impurity removal device according to claim 1, characterized in that, The impurity removal box (1) is rotatably connected to a side door (16) facing the upper cavity, and a transparent observation window (17) is provided in the box area of ​​the impurity removal box (1) corresponding to the lower cavity.

9. The pyrifluquinazon mother liquor impurity removal device according to claim 1, characterized in that, The adsorption box (11) has an inlet that matches the size of the discharge channel (3), and the bottom of the discharge channel (3) is flush with the surface of the adsorption box (11).

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