A fully enclosed PAM dosing automatic conveying structure

Abstract

The application discloses a fully-closed PAM dosing automatic conveying structure and relates to the technical field of dosing and conveying. The fully-closed PAM dosing automatic conveying structure comprises a box main body and a water inlet structure, and is provided with a stirring structure, a conveying box, a dosing box, a medicine guide box, a medicine storage tank, a dosing pump and a dosing pipe on the box main body. The box main body, the water inlet structure and the stirring structure are used in cooperation with the conveying box, a spiral conveying rod, a first driving motor, the dosing box, the medicine guide box, the medicine storage tank, the dosing pump and the dosing pipe, so that the PAM dry powder can be fully-closed conveyed. The extrusion roller, the protection box, the first rotary gear and the second driving motor cooperate to crush the PAM dry powder in the form of lumps. The lifting block, the second rotary gear, the rotating strip, the lifting strip, the rotating block, the limiting sleeve and the screening element cooperate to screen the crushed PAM dry powder, and a large amount of PAM dry powder is prevented from directly entering the box main body, so that the stirring structure is cooperated to accelerate the dissolution effect of the PAM dry powder.

Description

Technical Field

[0001] This invention belongs to the field of drug delivery technology, specifically a fully enclosed PAM automatic drug delivery structure. Background Technology

[0002] PAM is the abbreviation for polyacrylamide, a linear water-soluble polymer. PAM is a commonly used non-ionic polymeric flocculant in China, with a molecular weight of 1.5 million to 20 million, and a typical commercial concentration of 8%. Organic polymeric flocculants can form larger flocs between particles, resulting in a significant surface adsorption effect. PAM dosing refers to preparing an aqueous solution of polyacrylamide at a certain concentration and precisely adding it to the target water body or process system through a specialized dosing device. Utilizing its polymeric flocculation, thickening, and coagulation aid properties, it achieves water purification, solid-liquid separation, or process enhancement. Automatic PAM dosing systems transport polyacrylamide to the dosing device in a fully enclosed environment.

[0003] Existing automated PAM dosing systems typically use a screw conveyor to transport stored PAM to the dosing device, where it is then mixed with water for use. PAM dry powder is highly hygroscopic; during storage, it absorbs moisture from the air, causing the particles to swell, clump together, and form lumps. Furthermore, during transport, large quantities of PAM dry powder come into direct contact with water, leading to slow dispersion and the formation of a powder layer on the water surface. The internal layers cannot readily absorb moisture, resulting in large clumps that are difficult to disperse even with subsequent stirring. This results in undissolved particles in the solution, leading to inaccurate PAM concentration control, reduced effectiveness of the automated PAM dosing system, and compromised dosing precision, ultimately failing to meet user needs. Summary of the Invention

[0004] The present invention aims to solve the technical problems existing in the prior art; to this end, the present invention proposes a fully enclosed automatic delivery structure for PAM dosing.

[0005] A fully enclosed automatic PAM dosing and delivery structure includes a tank body and a water inlet structure mounted on the tank body. The water inlet structure consists of a water inlet pipe, a water inlet solenoid valve, and a flow meter. The tank body has a mixing chamber, a maturation chamber, and a storage chamber inside. The tank body is equipped with stirring structures respectively located in the mixing chamber, the maturation chamber, and the storage chamber. A delivery box is located at the top of the tank body, and a dosing box is connected to the upper end of the delivery box. A guide box connected to the mixing chamber is connected to one side of the delivery box. A storage tank is located on the outside of the tank body, and a dosing pump is mounted on the storage tank. A dosing pipe connected to the top of the dosing box is mounted on the dosing pump.

[0006] As a further aspect of the present invention: the delivery box is provided with a spiral delivery rod, one end of which extends into the medicine delivery box, and a first drive motor for controlling the operation of the spiral delivery rod is provided on the outside of the delivery box.

[0007] As a further aspect of the present invention: a squeezing roller is symmetrically rotated in the middle of the inner side of the dosing box, and a screening element is movably provided in the lower inner side of the dosing box. The screening element screens the PAM dry powder after it is squeezed by the squeezing roller and introduces the screened PAM dry powder into the conveying box. A sealing cover is provided at the top of the dosing box. The screening element consists of a frame that fits against the inner wall of the dosing box and a screening mesh installed inside the frame.

[0008] As a further aspect of the present invention: protective boxes are provided on both sides of the outer surface of the dosing box, and two meshing first rotating gears are rotatably provided in the protective boxes. One end of the first rotating gear is provided with a reinforcing rod coaxially connected to the extrusion roller, and a second drive motor is provided on the outer side of the protective box to control one of the first rotating gears to rotate.

[0009] As a further aspect of the present invention: the inner wall of the dosing box is symmetrically provided with several lifting grooves communicating with the protective box; both sides of the outer surface of the screening component are provided with lifting blocks that move in contact with the lifting grooves; the inner side of the protective box is provided with a second rotating gear that meshes with the first rotating gear; the outer side of the second rotating gear is provided with a rotating bar; the rotating bar is provided with a lifting bar; the lower part of the outer side of the lifting bar is provided with a rotating block connected to the lifting block; the inner side wall of the protective box is provided with a limiting sleeve that is guided and connected to the lifting bar, so that when the first rotating gear is working, the lifting block is controlled by the second rotating gear, the rotating bar and the lifting bar to drive the screening component to move up and down, thereby improving the screening effect of the screening component.

[0010] As a further aspect of the present invention: the upper and lower sides of the lifting block are vertically provided with a first sealing member to seal and protect the lifting groove. The first sealing member is symmetrically provided with a first guide strip that guides the movement of the lifting groove. The lifting block is symmetrically provided with a second guide strip that is aligned and matched with the first guide strip. The protective box is provided with guide grooves that match the first guide strip and the second guide strip respectively.

[0011] As a further aspect of the present invention: the first sealing element includes a first sealing strip fixedly connected to the lifting block and a second sealing strip movably connected to the first sealing strip. The end of the second sealing strip away from the lifting block is inclined. The dosing box is provided with a first sealing groove that fits with the first sealing strip and the second sealing strip. The first sealing groove fits with the lifting groove. The first sealing groove can press the second sealing strip into the first sealing strip and clean the dry powder adhering to the outer surface of the second sealing strip onto the screening element.

[0012] As a further aspect of the present invention: the first sealing strip is provided with a plurality of first guide rods that fit and guide the second sealing strip vertically, the second sealing strip is provided with a first guide hole that matches the first guide rod, and a first spring connected to the first guide rod is provided in the first guide hole.

[0013] As a further aspect of the present invention: a plurality of second sealing elements are symmetrically and movably arranged in the lifting groove to assist in sealing the lifting groove; a second sealing groove matching the second sealing elements is opened on the dosing box; the second sealing elements are located on the rear side of the first sealing strip and on the side of the first sealing strip away from the screening element; moving blocks are vertically arranged on both the upper and lower sides of the lifting block; the moving blocks are provided with moving components that are pulsatorically connected to the plurality of second sealing elements, so that when the moving block moves to the position of the second sealing element, the second sealing element opens the lifting groove; when the moving block leaves the position of the second sealing element, the second sealing element closes the lifting groove.

[0014] As a further aspect of the present invention: the moving component includes a first moving rack symmetrically connected to the moving block and a second moving rack aligned and disposed on the lower side of the first moving rack. The moving block is provided with a first connecting block and a second connecting block respectively. The first connecting block is fixedly connected to the outer surface of the first moving rack, and the second connecting block is fixedly connected to the outer surface of the second moving rack. The length of the first connecting block is smaller than the length of the second connecting block.

[0015] As a further aspect of the present invention: the moving component further includes a first transmission gear disposed on the outside of the second seal and a first transmission rack disposed on the second seal and meshing with the first transmission gear. The dosing box has a first transmission groove that fits against the first transmission rack. A second transmission gear is coaxially disposed on the first transmission gear. The first moving rack and the second moving rack are respectively disposed on both sides of the second transmission gear and mesh with the second transmission gear. When the first moving rack meshes with the second transmission gear, the first transmission gear controls the first transmission rack to move the second seal from the lifting groove to the second sealing groove. When the second moving rack meshes with the second transmission gear, the first transmission gear controls the first transmission rack to move the second seal from the second sealing groove to the lifting groove.

[0016] As a further aspect of the present invention: the second sealing element includes a first sealing block fixedly connected to the first transmission rack and a second sealing block symmetrically arranged on the first sealing block. Both the upper and lower end faces of the first sealing block are provided with connecting grooves that fit with the second sealing block. Several second guide rods that are vertically connected to the second sealing block are provided in the connecting grooves. The bottom end of the second sealing block is provided with a second guide hole that matches the second guide rod. A second spring connected to the second guide rod is provided in the second guide hole. When the second guide rod moves upward, it squeezes the second sealing block and causes the first sealing block and the second sealing block to move through the moving component, thereby opening or closing the lifting groove.

[0017] As a further aspect of the present invention: a cleaning assembly is provided at the upper end of the lifting block. The cleaning assembly is located on the side of the moving block away from the first sealing element. The cleaning assembly includes a support block symmetrically installed on the upper end of the lifting block and a transmission belt structure movably installed on the support block. The transmission belt structure includes two transmission wheels rotatably installed on the support block and a transmission belt connected to the two transmission wheels. A plurality of mounting strips are evenly arranged on the transmission belt structure. A cleaning brush for cleaning the lifting block is detachably installed on the mounting strips. The upper side of the end of the lifting block away from the screening element is provided with a debris-removing inclined surface that matches the cleaning brush. A limiting plate is provided on the support block for use with the transmission belt structure. The limiting plate is in contact with the inner bottom surface of the transmission belt structure, so that the cleaning brush can stably clean the lifting block.

[0018] As a further aspect of the present invention: one end of the lifting block is movably disposed inside the protective box, and a drive gear is rotatably provided on the outer side of the support block away from the moving block. The drive gear is coaxially connected to the transmission belt structure, that is, the drive gear is coaxially connected to the transmission wheel. The inner wall of the protective box is aligned with a drive rack that meshes with the drive gear. When the lifting block moves, the drive rack drives the drive gear to rotate, thereby controlling the cleaning brush to clean the lifting block through the transmission belt structure.

[0019] As a further aspect of the present invention: the inner bottom of the protective box is provided with a discharge trough in the shape of a funnel, and the bottom end of the protective box is provided with a box cover for closing the discharge trough.

[0020] As a further aspect of the present invention: the stirring structure includes a stirring motor detachably mounted on the upper end of the tank body and a stirring paddle disposed inside the tank body. Several stirring paddles are respectively disposed in the mixing chamber, the maturation chamber and the storage chamber. The upper end of the tank body is provided with a control cabinet for controlling the water inlet structure to add water, the dosing pump to deliver PAM dry powder and the prepared solution in the storage chamber to deliver the solution.

[0021] Compared with the prior art, the beneficial effects of the present invention are: (1) The present invention, through the setting of the main body of the box, the water inlet structure and the stirring structure, in conjunction with the conveying box, the spiral conveying rod, the first drive motor, the dosing box, the guide box, the storage tank, the dosing pump and the dosing pipe, can carry out fully enclosed conveying of PAM dry powder. Through the setting of the extrusion roller, the protective box, the first rotating gear and the second drive motor, the lumpy PAM dry powder can be broken. Through the setting of the lifting block, the second rotating gear, the rotating bar, the lifting bar, the rotating block, the limiting sleeve and the screening component, the broken PAM dry powder is screened, and a large amount of PAM dry powder is prevented from directly entering the main body of the box, thereby preventing the PAM dry powder from not being able to contact the water in time and thus sticking into large lumps. In conjunction with the stirring structure, the dissolution effect of PAM dry powder is accelerated. The first sealing strip, the second sealing strip, the first guide rod and the first spring work together to improve the sealing effect, prevent the possibility of PAM dry powder escaping, and improve the use effect of the automatic PAM dosing conveying structure.

[0022] (2) The present invention improves the sealing effect between the dosing box and the protective box by setting a second sealing element and a moving component, and the first sealing block, the second sealing block, the second guide rod, the second spring and the moving block cooperate to improve the sealing effect between the dosing box and the protective box. The moving block, the first moving rack, the second moving rack, the first transmission rack, the second transmission gear and the first transmission gear cooperate to make the moving block and the sealing component work together to seal, and will not interfere with the movement of the moving block and the lifting block, thereby improving the synergistic effect of the moving component and improving the use effect of the PAM dosing automatic conveying structure.

[0023] (3) The present invention uses a protective box and cleaning components, a support block, a transmission belt structure, a mounting strip and a cleaning brush to clean the lifting block. The support block, drive gear and drive rack work together to control the cleaning brush to clean the lifting block during movement, thereby improving the synergistic effect between the lifting block and the cleaning brush. The protective box, discharge chute and discharge slope work together to improve the cleaning effect of the lifting block and improve the use effect of the PAM dosing automatic conveying structure. Attached Figure Description

[0024] Figure 1 This is an overall structural diagram of the present invention.

[0025] Figure 2 This is a cross-sectional view of the main body of the box in this invention.

[0026] Figure 3 This is a cross-sectional view of the delivery box and the dosing box in this invention.

[0027] Figure 4 This is a partial structural diagram of the extrusion roller and screening component in this invention.

[0028] Figure 5 In this invention Figure 4 Enlarged view of the structure at point A in the middle.

[0029] Figure 6 This is a partial structural diagram of the extrusion roller and the first rotating gear in this invention.

[0030] Figure 7 This is a partial structural diagram of the lifting block and the first sealing element in this invention.

[0031] Figure 8 This is a partial structural diagram of the lifting block and the moving block in this invention.

[0032] Figure 9 This is a partial structural diagram of the movable block and the second sealing element in this invention.

[0033] Figure 10 This is a partial structural diagram of the second sealing element in this invention.

[0034] Figure 11 This is a partial structural diagram of the transmission belt structure and drive gear in this invention.

[0035] In the diagram: 1. Tank body; 2. Water inlet structure; 3. Stirring structure; 4. Conveying box; 5. Dosing box; 6. Guide box; 7. Storage tank; 8. Dosing pump; 9. Dosing pipe; 10. Screw conveyor; 11. First drive motor; 12. Squeezing roller; 13. Screening component; 14. Sealing cover; 15. Protective box; 16. First rotating gear; 17. Second drive motor; 18. Lifting block; 19. Second rotating gear; 20. Rotating bar; 21. Lifting bar; 22. Rotating block; 23. Limiting sleeve; 24. First sealing element; 25. First guide bar; 26. Second guide bar; 27. First sealing element. 28. Seal strip; 29. ​​Second sealing strip; 30. First guide rod; 31. First spring; 32. Second sealing element; 33. Moving block; 34. First moving rack; 35. Second moving rack; 36. First transmission rack; 37. Second transmission gear; 38. First sealing block; 39. Second guide rod; 40. Second spring; 41. Support block; 42. Transmission belt structure; 43. Mounting strip; 44. Cleaning brush; 45. Drive gear; 46. Drive rack; 47. Stirring paddle; 48. Control cabinet; 49. Stirring motor; 50. First transmission gear; 51. Limiting plate. Detailed Implementation

[0036] The technical solution of the present invention will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0037] Example 1 Please see Figure 1 - Figure 8 This application provides a fully enclosed automatic PAM dosing and conveying structure, including a tank body 1 and a water inlet structure 2 disposed on the tank body 1. The water inlet structure 2 consists of a water inlet pipe, a water inlet solenoid valve, and a flow meter. The tank body 1 has a mixing chamber, a maturation chamber, and a storage chamber inside. The tank body 1 is provided with stirring structures 3 disposed in the mixing chamber, the maturation chamber, and the storage chamber respectively. The top of the tank body 1 is provided with a conveying box 4. The upper end of the conveying box 4 is connected to a dosing box 5. One side of the conveying box 4 is connected to a guide box 6 that communicates with the mixing chamber. The outside of the tank body 1 is provided with a storage tank 7. The storage tank 7 stores PAM dry powder inside. The storage tank 7 is provided with a dosing pump 8. The dosing pump 8 is provided with a dosing pipe 9 that communicates with the top of the dosing box 5.

[0038] In this embodiment, when water is introduced into the tank body 1 through the water inlet structure 2, the dosing pump 8 is started, and PAM dry powder is transported to the dosing box 5 through the dosing pipe 9. The dosing box 5 then introduces the PAM dry powder into the conveying box 4, and the conveying box 4 transports the PAM dry powder to the delivery box 6.

[0039] In this invention, the delivery box 4 is provided with a spiral delivery rod 10, one end of which extends into the medicine guide box 6. The outer side of the delivery box 4 is provided with a first drive motor 11 for controlling the spiral delivery rod 10 to work.

[0040] In this embodiment, the first drive motor 11 is started to drive the spiral conveyor 10 to work, so that the spiral conveyor 10 conveys the PAM dry powder and conveys the PAM dry powder to the medicine guide box 6, and then conveys the PAM dry powder to the box body 1 through the medicine guide box 6.

[0041] In this invention, the stirring structure 3 includes a stirring motor 49 detachably mounted on the upper end of the tank body 1 and a stirring paddle 47 disposed inside the tank body 1. Several stirring paddles 47 are respectively disposed in the mixing chamber, the maturation chamber and the storage chamber. The upper end of the tank body 1 is provided with a control cabinet 48, which is used to control the water inlet structure 2 to add water, the dosing pump 8 to transport PAM dry powder and to transport the prepared solution in the storage chamber.

[0042] In this embodiment, when PAM dry powder is added to the inside of the main body 1, the stirring structure 3 is activated, so that the stirring motor 49 drives the stirring paddle 47 to rotate inside the main body 1, so that the stirring paddle 47 can fully stir the PAM dry powder and water.

[0043] In this invention, the dosing box 5 has a symmetrically rotating extrusion roller 12 on its inner side center, and a screening element 13 is movably provided on the lower inner side of the dosing box 5. The screening element 13 screens the PAM dry powder after it is extruded by the extrusion roller 12 and introduces the screened PAM dry powder into the conveying box 4. The top of the dosing box 5 is provided with a sealing cap 14. The screening element 13 consists of a frame that fits against the inner wall of the dosing box 5 and a screening mesh installed inside the frame.

[0044] In this embodiment, when the two extrusion rollers 12 rotate in opposite directions, PAM dry powder enters between the two extrusion rollers 12, causing the two extrusion rollers 12 to crush the blocky or lumpy PAM dry powder.

[0045] In this invention, protective boxes 15 are provided on both sides of the outer surface of the dosing box 5. Two meshing first rotating gears 16 are rotatably provided in the protective box 15. One end of the first rotating gear 16 is provided with a reinforcing rod coaxially connected to the extrusion roller 12. A second drive motor 17 is provided on the outer side of the protective box 15 to control one of the first rotating gears 16 to rotate.

[0046] In this embodiment, the second drive motor 17 is started, which drives the first rotating gear 16 to rotate, so that the first rotating gear 16 drives another first rotating gear 16 to rotate, so that the first rotating gear 16 drives the reinforcing rod to rotate, so that the reinforcing rod drives the extrusion roller 12 to rotate.

[0047] In this invention, the inner wall of the dosing box 5 is symmetrically provided with several lifting grooves that communicate with the protective box 15. Both sides of the outer surface of the screening component 13 are provided with lifting blocks 18 that move in contact with the lifting grooves. The inner side of the protective box 15 is provided with a second rotating gear 19 that meshes with the first rotating gear 16. The outer side of the second rotating gear 19 is provided with a rotating bar 20, and a lifting bar 21 is provided on the rotating bar 20. The lower part of the outer side of the lifting bar 21 is provided with a rotating block 22 that is connected to the lifting block 18. The inner side wall of the protective box 15 is provided with a limiting sleeve 23 that is guided and connected to the lifting bar 21. When the first rotating gear 16 is working, the lifting block 18 is controlled by the second rotating gear 19, the rotating bar 20 and the lifting bar 21 to drive the screening component 13 to move up and down, thereby improving the screening effect of the screening component 13.

[0048] In this embodiment, the first rotating gear 16 drives the second rotating gear 19 to rotate, which in turn drives the rotating bar 20 to rotate. This causes the rotating bar 20 to move the lifting bar 21 on the limiting sleeve 23. The lifting bar 21 drives the lifting block 18 to move through the rotating block 22, thereby causing the lifting block 18 to move the screening element 13 up and down, improving the screening effect of the screening element 13.

[0049] In this invention, the upper and lower sides of the lifting block 18 are vertically provided with a first sealing member 24 to seal and protect the lifting groove. The first sealing member 24 is symmetrically provided with a first guide strip 25 that moves with the lifting groove. The lifting block 18 is symmetrically provided with a second guide strip 26 that is aligned and matched with the first guide strip 25. The protective box 15 is provided with guide grooves that match the first guide strip 25 and the second guide strip 26 respectively.

[0050] In this embodiment, when the lifting block 18 moves in the lifting groove, it causes the first sealing member 24 to move. When the first sealing member 24 moves, it seals the lifting groove and causes the first sealing member 24 to move the first guide strip 25 in the guide groove. The lifting block 18 causes the second guide strip 26 to move in the guide groove, thereby improving the stability of the lifting block 18 and the first sealing member 24 when they move.

[0051] In this invention, the first sealing element 24 includes a first sealing strip 27 fixedly connected to the lifting block 18 and a second sealing strip 28 movably connected to the first sealing strip 27. The end of the second sealing strip 28 away from the lifting block 18 is inclined. The dosing box 5 is provided with a first sealing groove that fits with the first sealing strip 27 and the second sealing strip 28. The first sealing groove fits with the lifting groove. The first sealing groove can press the second sealing strip 28 into the first sealing strip 27 and clean the dry powder adhering to the outer surface of the second sealing strip 28 onto the screening element 13.

[0052] In this embodiment, when the first sealing member 24 moves in the first sealing groove, the first sealing groove squeezes the second sealing strip 28, causing the second sealing strip 28 to move toward the first sealing strip 27, and the first sealing groove cleans the dry powder adhering to the second sealing strip 28.

[0053] In this invention, a plurality of first guide rods 29 are vertically provided on the first sealing strip 27 to fit and guide the second sealing strip 28. The second sealing strip 28 is provided with a first guide hole that matches the first guide rod 29. A first spring 30 connected to the first guide rod 29 is provided in the first guide hole.

[0054] In this embodiment, when the second sealing strip 28 moves toward the first sealing strip 27, the second sealing strip 28 moves on the first guide rod 29, causing the second sealing strip 28 to compress the first spring 30.

[0055] Example 2 Based on Example 1, referring to Figure 4 - Figure 10This is the second embodiment of the present invention. In this invention, a plurality of second sealing members 31 are symmetrically and movably arranged in the lifting groove to assist in sealing the lifting groove. The dosing box 5 is provided with a second sealing groove that matches the second sealing member 31. The second sealing member 31 is located on the rear side of the first sealing strip 27 and on the side of the first sealing strip 27 away from the screening member 13. The upper and lower sides of the lifting block 18 are vertically provided with moving blocks 32. The moving blocks 32 are provided with moving components that are connected to the plurality of second sealing members 31 in a transmission manner, so that when the moving blocks 32 move to the position of the second sealing members 31, the second sealing members 31 open the lifting groove. When the moving blocks 32 leave the position of the second sealing members 31, the second sealing members 31 close the lifting groove.

[0056] In this embodiment, when the lifting block 18 drives the moving block 32 to move, the moving block 32 moves in the lifting groove, so that the moving block 32 controls the second sealing member 31 to move through the moving component, and the second sealing member 31 opens or closes the lifting groove.

[0057] In this invention, the moving component includes a first moving rack 33 symmetrically connected to the moving block 32 and a second moving rack 34 aligned and disposed on the lower side of the first moving rack 33. The moving block 32 is provided with a first connecting block and a second connecting block respectively. The first connecting block is fixedly connected to the outer surface of the first moving rack 33, and the second connecting block is fixedly connected to the outer surface of the second moving rack 34. The length of the first connecting block is smaller than the length of the second connecting block.

[0058] In this embodiment, when the moving block 32 moves, the moving block 32 drives the first connecting block and the second connecting block to move, so that the first connecting block or the second connecting block drives the first moving rack 33 and the second moving rack 34 to move respectively.

[0059] The movable component of this invention further includes a first transmission gear 50 disposed on the outside of the second seal 31 and a first transmission rack 35 disposed on the second seal 31 and meshing with the first transmission gear 50. The dosing box 5 has a first transmission groove that fits against the first transmission rack 35. A second transmission gear 36 is coaxially disposed on the first transmission gear 50. A first movable rack 33 and a second movable rack 34 are respectively disposed on both sides of the second transmission gear 36 and mesh with the second transmission gear 36. When the first movable rack 33 meshes with the second transmission gear 36, the first transmission gear 50 controls the first transmission rack 35 to move the second seal 31 from the lifting groove to the second sealing groove. When the second movable rack 34 meshes with the second transmission gear 36, the first transmission gear 50 controls the first transmission rack 35 to move the second seal 31 from the second sealing groove to the lifting groove.

[0060] In this embodiment, when the moving block 32 moves, the first moving rack 33 is driven to move by the first connecting block, causing the first moving rack 33 to mesh with the second transmission gear 36. This causes the first moving rack 33 to drive the second transmission gear 36 to rotate, which in turn causes the second transmission gear 36 to drive the first transmission gear 50 to rotate. This causes the first transmission gear 50 to drive the first transmission rack 35 to move, which in turn causes the first transmission rack 35 to drive the second sealing member 31 to move. This controls the two second sealing members 31 to cooperate in opening or closing the lifting groove. When the moving block 32 causes the first moving rack 33 to separate from the second transmission gear 36, the second connecting block causes the second moving rack 34 to mesh with the second transmission gear 36. The second transmission gear 36, the first transmission gear 50, and the first transmission rack 35 cooperate in driving the second sealing member 31 to move, causing the two second sealing members 31 to cooperate in closing or opening the lifting groove.

[0061] In this invention, the second sealing element 31 includes a first sealing block 37 fixedly connected to the first transmission rack 35 and a second sealing block 38 symmetrically arranged on the first sealing block 37. Both the upper and lower end faces of the first sealing block 37 are provided with connecting grooves that fit with the second sealing block 38. Several second guide rods 39 that are vertically connected to the second sealing block 38 are provided in the connecting grooves. The bottom end of the second sealing block 38 is provided with a second guide hole that matches the second guide rod 39. A second spring 40 connected to the second guide rod 39 is provided in the second guide hole. When the second guide rod 39 moves upward, it squeezes the second sealing block 38 and moves the first sealing block 37 and the second sealing block 38 through the moving component, thereby opening or closing the lifting groove.

[0062] In this embodiment, when the moving block 32 moves toward the second sealing member 31, the second sealing block 38 moves toward the first sealing block 37, the second sealing block 38 moves on the second guide rod 39, the second sealing block 38 squeezes the second spring 40, and the first sealing block 37 drives the second sealing block 38 to move.

[0063] Example 3 Based on Example 2, referring to Figure 4 - Figure 5 and Figure 11This is the third embodiment of the present invention. In this embodiment, the upper end of the lifting block 18 is provided with a cleaning component. The cleaning component is located on the side of the moving block 32 away from the first sealing member 24. The cleaning component includes a support block 41 symmetrically installed on the upper end of the lifting block 18 and a transmission belt structure 42 movably installed on the support block 41. The transmission belt structure 42 includes two transmission wheels rotatably installed on the support block 41 and a transmission belt connected to the two transmission wheels. A plurality of mounting strips 43 are evenly arranged on the transmission belt structure 42. A cleaning brush 44 for cleaning the lifting block 18 is detachably provided on the mounting strips 43. The upper side of the end of the lifting block 18 away from the screening member 13 is provided with a debris removal slope that matches the cleaning brush 44. The support block 41 is provided with a limiting plate 51 that works with the transmission belt structure 42. The limiting plate 51 is in contact with the inner bottom surface of the transmission belt structure 42, so that the cleaning brush 44 can stably clean the lifting block 18.

[0064] In this embodiment, when the lifting block 18 moves, the cleaning component cleans the lifting block 18, causing the transmission belt structure 42 to operate. The transmission belt structure 42 drives the mounting strip 43 to move, and the mounting strip 43 drives the cleaning brush 44 to move. The cleaning brush 44 cleans the lifting block 18 and discharges the cleaned impurities from the lifting block 18 through the impurity discharge ramp. When the cleaning brush 44 is cleaning, the limiting plate 51 improves the stability of the mounting strip 43 through the transmission belt structure 42. In this invention, one end of the lifting block 18 is movably disposed inside the protective box 15. A drive gear 45 is rotatably provided on the outer side of the support block 41 away from the moving block 32. The drive gear 45 is coaxially connected to the transmission belt structure 42, that is, the drive gear 45 is coaxially connected to the transmission wheel. The inner wall of the protective box 15 is aligned with a drive rack 46 that meshes with the drive gear 45. When the lifting block 18 moves, the drive rack 46 drives the drive gear 45 to rotate, thereby controlling the cleaning brush 44 to clean the lifting block 18 through the transmission belt structure 42.

[0065] In this embodiment, when the lifting block 18 is raised or lowered, it causes the support block 41 to move. The support block 41 causes the drive gear 45 to move. The drive gear 45 meshes with the drive rack 46, causing the drive rack 46 to drive the drive gear 45 to rotate. The drive gear 45 drives the transmission belt structure 42 to work, and the transmission belt structure 42 drives the cleaning brush 44 to move, so that the cleaning brush 44 cleans the lifting block 18.

[0066] In this invention, the inner bottom of the protective box 15 is provided with a discharge trough in the shape of a funnel, and the bottom end of the protective box 15 is provided with a box cover to close the discharge trough.

[0067] The above embodiments are only used to illustrate the technical methods of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical methods of the present invention without departing from the spirit and scope of the technical methods of the present invention.

Claims

1. A fully enclosed automatic PAM dosing and delivery structure, characterized in that, include: The main body of the box has a dosing box connected to its upper end via a conveyor box; The storage tank delivers PAM to the dosing box via a dosing pump and dosing pipe; The squeezing rollers are symmetrically arranged inside the dosing box, and the outer side of the dosing box is provided with a first rotating gear to control the squeezing rollers to rotate in opposite directions; The screening component is movable under the extrusion roller and screens the PAM dry powder after it has been extruded by the extrusion roller. The spiral conveyor rod is located on the lower side of the screening element and conveys the screened PAM dry powder to the main body of the box through the conveyor box.

2. The fully enclosed automatic PAM dosing and delivery structure according to claim 1, characterized in that, The dosing box has protective boxes on both sides of its outer surface to protect the first rotating gear; The inner wall of the dosing box is symmetrically provided with several lifting grooves that communicate with the protective box; Both sides of the outer surface of the screening element are provided with lifting blocks that move in contact with the lifting groove; The protective box is internally equipped with a second rotating gear that meshes with the first rotating gear. The outer side of the second rotating gear is provided with a rotating bar; The rotating bar is equipped with a lifting bar that rotates on it. The lower outer side of the lifting bar is rotatably provided with a rotating block that is connected to the lifting block. The inner wall of the protective box is provided with a limiting sleeve that is connected to the lifting bar guide.

3. The fully enclosed automatic PAM dosing and delivery structure according to claim 2, characterized in that, The upper and lower sides of the lifting block are each provided with a first sealing element to seal and protect the lifting groove. The first sealing element is symmetrically provided with first guide strips that move in accordance with the lifting groove; The lifting block is symmetrically provided with a second guide bar that is aligned and matched with the first guide bar.

4. The fully enclosed automatic PAM dosing and delivery structure according to claim 3, characterized in that, The first seal includes: The first sealing strip is fixedly connected to the lifting block; The second sealing strip is movably connected and aligned with the first sealing strip, and the end of the second sealing strip away from the lifting block is set with an inclined surface; The first sealing strip is vertically provided with a plurality of first guide rods that fit and guide the second sealing strip; The second sealing strip is provided with a first spring that is connected to the first guide rod.

5. The fully enclosed automatic PAM dosing and delivery structure according to claim 4, characterized in that, The lifting groove is symmetrically and movably provided with several second sealing elements that assist in sealing the lifting groove; The second seal is disposed on the side of the first seal strip away from the screen element; The lifting block has vertically arranged moving blocks on both its upper and lower sides; The moving block is symmetrically provided with a first moving rack and a second moving rack aligned with the first moving rack.

6. The fully enclosed automatic PAM dosing and delivery structure according to claim 5, characterized in that, The outer surface of the second seal is provided with a first transmission rack; The outer side of the second seal is provided with a first transmission gear that meshes with the first transmission rack; A second transmission gear is coaxially mounted on the first transmission gear; The first and second movable racks are respectively disposed on both sides of the second transmission gear and mesh with the second transmission gear.

7. The fully enclosed automatic PAM dosing and delivery structure according to claim 6, characterized in that, The second seal includes: The first sealing block is fixedly connected to the first transmission rack. The second sealing block is elastically and symmetrically disposed on the first sealing block and moves in the dosing box in cooperation with the first sealing block.

8. The fully enclosed automatic PAM dosing and delivery structure according to claim 7, characterized in that, The first sealing block is vertically provided with a second guide rod for guiding the movement of the second sealing block; The second sealing block has several second springs inside that are connected to the second guide rod.

9. The fully enclosed automatic PAM dosing and delivery structure according to claim 7, characterized in that, A support block is provided on the side of the movable block away from the first seal; A transmission belt structure is provided between the support blocks; The transmission belt structure is equipped with cleaning brushes for cleaning the lifting blocks via mounting strips; The support block is equipped with a limiting plate that works in conjunction with the transmission belt structure.

10. The fully enclosed automatic PAM dosing and delivery structure according to claim 9, characterized in that, One end of the lifting block is movably disposed inside the protective box; A drive gear is rotatably provided on the outer side of the support block away from the moving block; The inner wall of the protective box is provided with a drive rack that meshes with the drive gear. When the lifting block moves, the drive rack drives the drive gear to rotate, and the drive gear controls the cleaning brush to clean the lifting block through the transmission belt structure.

Images