Purification device for polyacrylamide

Abstract

The utility model is applicable to the technical field of polyacrylamide production, and discloses a purification device for polyacrylamide, which is characterized in that a containing frame is rotatably mounted in a tank body, a permeable sieve plate is fixedly embedded and mounted at the bottom of the inner side of the containing frame, and rotating rods are rotatably mounted at two ends of the side edge of the containing frame through bearings; hollow frames are vertically and fixedly installed in the middles of the two ends of the side edge of the pool body, and a vertical driving mechanism is arranged in each hollow frame. According to the technical scheme of the utility model, polyacrylamide sediments settled on the bottom surface of the tank body are synchronously lifted and moved out, and the rotating rod is driven by meshing to drive the containing frame to incline, so that the sediments stacked on the surface of the containing frame can be gathered together as much as possible under the action of the gravity of the sediments; an operator can conveniently move the precipitate without discharging the precipitation reaction liquid, so that the precipitation reaction liquid can be conveniently and repeatedly used, and the purification processing efficiency of polyacrylamide is improved.

Description

Technical Field

[0001] This invention relates to the field of polyacrylamide production technology, and in particular to a purification device for polyacrylamide. Background Technology

[0002] Currently, polyacrylamide is a high molecular polymer with good water solubility and various ionic properties. It is widely used in water treatment, oil extraction, papermaking, textiles and agriculture. As a flocculant and thickener, it can effectively purify water and improve production efficiency. It is an indispensable chemical in industrial production. When purifying it, polyacrylamide can be purified by precipitation in methanol or acetone. In specific operation, the polyacrylamide solution is mixed with methanol or acetone, so that the polyacrylamide precipitates out in the form of a precipitate. Then, the purified polyacrylamide is obtained through steps such as filtration, washing and drying.

[0003] However, in current polyacrylamide purification processes, polyacrylamide solutions need to be mixed with methanol or acetone to precipitate the polyacrylamide. When transferring the precipitate, operators often need to drain the mixed solution before transferring the precipitate from the bottom of the sedimentation tank. This operation not only prevents the rapid sedimentation of the solution but also hinders the quick aggregation and transfer of the scattered precipitate at the bottom, resulting in insufficient purification efficiency for polyacrylamide. Therefore, we propose a purification device for polyacrylamide. Utility Model Content

[0004] The main objective of this invention is to provide a purification device for polyacrylamide, which can effectively solve the problems in the background art.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A purification device for polyacrylamide includes a tank body, a holding frame rotatably installed inside the tank body, and a permeable screen plate fixedly embedded in the bottom inner side of the holding frame.

[0007] Both ends of the side of the container are rotatably mounted with rotating rods via bearings, and each rotating rod is provided with a rotating mechanism on its outer side.

[0008] Hollow frames are vertically fixedly installed at the middle of both ends of the side of the pool body. Each hollow frame is equipped with a vertical drive mechanism, and the vertical drive mechanism and the rotation mechanism are connected in transmission.

[0009] By adopting the above technical solution, the polyacrylamide precipitate that has been extracted from the bottom of the tank is simultaneously lifted and moved out through the cooperation of the vertical drive mechanism and the rotating mechanism. The rotating rod is driven by the meshing and causes the holding frame to tilt, so that the precipitate piled on the surface of the holding frame can be gathered together as much as possible under its own gravity. This allows the operator to transfer the precipitate without discharging the precipitate reaction liquid, facilitates the reuse of the precipitate reaction liquid, and improves the efficiency of polyacrylamide purification and processing.

[0010] As an optional solution to the technical solution of this application, the rotating mechanism includes a follower gear and a transmission rack. The transmission rack is vertically fixedly installed at both ends of the inner side of the pool body. The follower gear is fixedly sleeved on the outer side of each rotating rod. A connecting sleeve is rotatably sleeved on the outer side of each rotating rod through a bearing. A support frame is vertically fixedly installed on the top of the outer side of each connecting sleeve. The support frame is U-shaped and is movably sleeved on the outer side of the pool body.

[0011] By adopting the above technical solution, through the meshing transmission of the follower gear and the transmission rack, the container can move vertically while the rotating rod is driven by the meshing, causing the container to tilt accordingly, so that the sediment piled on the surface of the container can be gathered together as much as possible under its own gravity.

[0012] As an optional solution to the technical solution of this application, the vertical drive mechanism includes a rotating lead screw. Each hollow frame has a rotating lead screw installed vertically via a bearing. Each rotating lead screw has a lifting sleeve threadedly connected to its outer side. Each lifting sleeve has a connecting block fixedly installed on its outer side. Each hollow frame has a limiting groove vertically formed in the middle of its side, and the connecting block is slidably inserted into the limiting groove. Each hollow frame has a sliding plate slidably installed on its outer side, and the top of the connecting block's side is fixedly connected to the side of the sliding plate. Each sliding plate's outer side is fixedly connected to the bottom of the support frame's side. Each hollow frame has a servo motor fixedly installed on its top outer side, and the bottom of the servo motor's drive shaft is fixedly connected to the top of the rotating lead screw via a coupling.

[0013] By adopting the above technical solution, the lifting sleeve can be driven to move vertically in sync with the holding frame by rotating the screw, thereby transferring the sediment accumulated on the surface of the permeable screen plate.

[0014] As an optional solution to the technical solution of this application, both ends of the bottom side of the pool are fixedly installed with support baffles, and the bottom side of the holding frame is movably attached to the top surface of the support baffles.

[0015] By adopting the above technical solution, a support baffle is set at the bottom of the holding frame. Under the structural action of the support baffle, the holding frame placed at the bottom of the pool can be resisted and limited, preventing it from rotating arbitrarily at the bottom of the pool and affecting the purification and precipitation process of the mixed solution.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. The present application discloses a purification device for polyacrylamide. This device comprises a holding frame inside a tank, and a permeable screen plate inside the holding frame. A connecting sleeve connects a support frame and a rotating rod. When the rotating screw inside the hollow frame is driven to rotate, it causes the lifting sleeve on its outer side to move vertically. Under the connecting action of the connecting block and the supporting frame, a corresponding vertical moving force is provided to the holding frame. This allows the holding frame to simultaneously lift and remove the polyacrylamide precipitate from the bottom of the tank while moving vertically. This allows the operator to handle the precipitate without discharging the precipitate reaction liquid, facilitating the reuse of the precipitate reaction liquid and improving the efficiency of polyacrylamide purification.

[0018] 2. A purification device for polyacrylamide according to the technical solution of this application, by sleeved with a follower gear on the outside of the rotating rod and vertically arranged with a transmission rack inside the tank, when the rotating rod moves vertically under the transmission action of the support frame, the follower gear moves vertically accordingly and meshes with the transmission rack. This allows the holding frame to move vertically while the rotating rod is driven by the meshing, causing the holding frame to tilt. This allows the sediment piled on the surface of the holding frame to gather together as much as possible under its own gravity, further facilitating the operator to transfer the polyacrylamide purification sediment. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall three-dimensional structure of a purification device for polyacrylamide according to the present invention.

[0020] Figure 2 This is a side view sectional diagram of the hollow frame structure of a polyacrylamide purification device according to the present invention.

[0021] Figure 3 This is a side view cross-sectional structural diagram of the rotating rod of a polyacrylamide purification device according to the present invention.

[0022] Reference numerals: 1. Pool body; 11. Container frame; 12. Permeable screen plate; 13. Support baffle; 2. Rotating rod; 21. Connecting sleeve; 22. Support frame; 23. Follower gear; 24. Transmission rack; 3. Hollow frame; 31. Servo motor; 32. Rotating lead screw; 33. Lifting sleeve; 34. Connecting block; 35. Sliding plate; 36. Limiting groove. Detailed Implementation

[0023] like Figure 1-3 As shown, this utility model provides a technical solution: a purification device for polyacrylamide, wherein a holding frame 11 is rotatably installed inside the pool body 1, and a permeable screen plate 12 is fixedly embedded in the bottom inner side of the holding frame 11.

[0024] In this technical solution (through Figure 1 , Figure 2 and Figure 3 As shown), rotating rods 2 are rotatably mounted on both ends of the side of the holding frame 11 via bearings. A rotating screw 32 is vertically rotatably mounted inside each hollow frame 3 via bearings. A lifting sleeve 33 is threadedly connected to the outside of each rotating screw 32. A connecting block 34 is fixedly mounted on the outside of each lifting sleeve 33. A limiting groove 36 is vertically opened in the middle of the side of each hollow frame 3, and the connecting block 34 is slidably inserted into the limiting groove 36. A sliding plate 35 is slidably mounted on the outside of each hollow frame 3, and the top of the side of the connecting block 34 is fixedly connected to the side of the sliding plate 35. The outside of each sliding plate 35 is fixedly connected to the bottom of the side of the support frame 22. A servo motor 31 is fixedly mounted on the top of the outside of each hollow frame 3, and the bottom of the drive shaft of the servo motor 31 is fixedly connected to the top of the rotating screw 32 via a coupling.

[0025] In this technical solution (through Figure 1 , Figure 2 and Figure 3 As shown), each rotating rod 2 has a connecting sleeve 21 rotatably sleeved on the outside of the bearing, and a support frame 22 is vertically fixedly installed on the top of the outside of each connecting sleeve 21. The support frame 22 is in the shape of an inverted U-shape and is movably sleeved on the outside of the pool body 1.

[0026] In this technical solution (through Figure 1 , Figure 2 and Figure 3 As shown, the rotating mechanism includes a follower gear 23 and a transmission rack 24. The transmission rack 24 is vertically fixedly installed at both ends of the inner side of the pool body 1, and a follower gear is fixedly sleeved on the outer side of each rotating rod 2.

[0027] In some technical solutions (through Figure 1 , Figure 2 and Figure 3As shown, support baffles 13 are fixedly installed at both ends of the bottom inner side of the pool body 1, and the bottom outer side of the holding frame 11 is movably attached to the top surface of the support baffles 13.

[0028] During operation, when the polyacrylamide solution needs to be purified, the methanol or acetone solution required for purification and precipitation is first transported into the tank 1. Then, the polyacrylamide solution is added into the holding frame 11, ensuring that the liquid level of the mixed solution does not exceed two-thirds of the overall height of the holding frame 11. After the reaction is complete, the polyacrylamide precipitate precipitates and settles on the surface of the permeable screen plate 12. Then, the servo motor 31 is turned on by an external control switch, causing it to drive the rotating screw 32 to rotate synchronously inside the hollow frame 3. Combined with the guiding and limiting effect of the limiting slide groove 36 on the connecting block 34, the lifting sleeve 33 can move vertically synchronously inside the hollow frame 3. Subsequently, under the connecting transmission action of the connecting block 34, the sliding plate 35 and its side support frame 22 can be driven. The container moves vertically in sync, causing the holding frame 11 to rise vertically from the bottom inside the tank 1. This allows the mixed solution to pass through the permeable screen 12 and be discharged. The polyacrylamide precipitate then accumulates on the surface of the permeable screen 12. Combined with the meshing transmission of the follower gear 23 and the transmission rack 24, the container frame 11 moves vertically, causing the rotating rod 2 and the holding frame 11 to rotate and tilt synchronously. After the holding frame 11 moves vertically to the top of the tank 1, it tilts to the left, drying the precipitate accumulated on the surface of the permeable screen 12. Under its own gravity, the precipitate rolls and accumulates on the surface of the permeable screen 12. The precipitate is then transferred to complete the purification process of the polyacrylamide.

Claims

1. A purification apparatus for polyacrylamide comprising a cell body (1), characterized in that: The pool body (1) is internally rotatably installed with a containing frame (11), and the containing frame (11) is internally and fixedly embedded with a water-permeable sieve plate (12); Both ends of the containing frame (11) are rotatably installed with rotating rods (2) through bearings, and the outer side of each rotating rod (2) is provided with a rotating mechanism. The middle part of both ends of the pool body (1) is vertically fixedly installed with hollow frames (3), and each hollow frame (3) is internally provided with a vertical driving mechanism, and the vertical driving mechanism and the rotating mechanism are drivingly connected.

2. The purification apparatus for polyacrylamide according to claim 1, characterized by: The rotating mechanism comprises a follow-up gear (23) and a transmission rack (24), and both ends of the pool body (1) are vertically fixedly installed with transmission racks (24), and each rotating rod (2) is fixedly sleeved with a follow-up gear on the outer side.

3. The purification apparatus for polyacrylamide according to claim 2, characterized by: The outer side of each rotating rod (2) is rotatably sleeved with a connecting sleeve (21) through a bearing, and the outer side of each connecting sleeve (21) is vertically fixedly installed with a support frame (22) at the top.

4. The apparatus for purifying polyacrylamide according to claim 1, wherein: The vertical driving mechanism comprises a rotating lead screw (32), and each hollow frame (3) is internally rotatably installed with a rotating lead screw (32) through a bearing, and the outer side of each rotating lead screw (32) is movably sleeved with a lifting sleeve (33) through threads, and the outer side of each lifting sleeve (33) is fixedly installed with a connecting block (34), and the middle part of the side of each hollow frame (3) is vertically provided with a limiting sliding groove (36), and the connecting block (34) is slidingly inserted into the limiting sliding groove (36).

5. The purification apparatus for polyacrylamide according to claim 4, characterized by: The outer side of each hollow frame (3) is slidingly installed with a sliding plate (35), and the side edge top end of the connecting block (34) and the side edge of the sliding plate (35) are fixedly connected, and the outer side of each sliding plate (35) and the side edge bottom of the support frame (22) are fixedly connected, and the outer top of each hollow frame (3) is fixedly installed with a servo motor (31), and the bottom of the transmission shaft of the servo motor (31) is fixedly connected with the top of the rotating lead screw (32) through a shaft coupling.

6. The purification apparatus for polyacrylamide according to claim 1, characterized by: Both ends of the inner bottom of the pool body (1) are fixedly installed with support baffles (13), and the outer bottom of the containing frame (11) is movably attached to the top surface of the support baffles (13).

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