Fluidized bed drying device for anionic polyacrylamide production
By introducing a lifting and cleaning structure into the fluidized bed dryer, and using electric components and a cleaning disc to clean the inner wall of the feed hopper, the problem of reduced channel area caused by material adhesion on the inner wall is solved, ensuring the stability of the feed rate and avoiding insufficient material supply to the production line.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGSU ZHONG COAL WATER TREATMENT MATERIALS CO LTD
- Filing Date
- 2025-05-26
- Publication Date
- 2026-04-17
AI Technical Summary
In existing technologies, the material adhering to the inner wall of the fluidized bed dryer reduces the actual channel area available for feeding, leading to fluctuations in the feed rate and causing insufficient material supply to the production line.
A fluidized bed drying device was designed, which includes components such as a drying unit, a feeding hopper, a placement platform, a lifting structure, and a cleaning structure. The lifting structure drives the cleaning structure to move, and electric components and a cleaning disc are used to clean the inner wall of the feeding hopper to prevent material from adhering.
It effectively solves the problem of reduced channel area caused by material adhesion on the inner wall, ensures the stability of the feed rate, and avoids insufficient material supply to the production line.
Smart Images

Figure CN224136232U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of anionic polyacrylamide production technology, and particularly relates to a fluidized bed drying device for anionic polyacrylamide production. Background Technology
[0002] Anionic polyacrylamide is an important high molecular weight polymer with wide applications in various industrial fields due to its unique chemical structure and properties. The production of anionic polyacrylamide mainly includes raw material selection, pretreatment, polymerization reaction and post-treatment. In the production of anionic polyacrylamide, fluidized bed drying is a highly efficient and widely used drying equipment. Fluidized bed drying uses hot air flow to make the granular wet material placed on the sieve plate boil, thereby realizing the drying process. Fluidized bed drying equipment for the production of anionic polyacrylamide usually consists of a feeding system, a vibrating fluidized bed dryer, a heat source system, an induced draft system, a dust removal system and a control system.
[0003] The problem with existing technology is that the material adhering to the inner wall reduces the actual channel area available for feeding, causing the feed rate to fluctuate over time, which in turn leads to insufficient material supply in the production line. Utility Model Content
[0004] To address the problems existing in the prior art, this utility model provides a fluidized bed drying device for the production of anionic polyacrylamide. It has the advantage of cleaning the inner wall of the vertical pipe of the feed hopper, which solves the problem that the material adhering to the inner wall reduces the actual channel area available for feeding, causing the feed rate to fluctuate over time and thus leading to insufficient material supply in the production line.
[0005] This invention is implemented as follows: a fluidized bed drying device for producing anionic polyacrylamide includes a drying device and a feed hopper. The feed hopper is fixedly connected to the left side of the drying device. A placement platform is fixedly connected to the left side of the drying device. The placement platform is sleeved on the surface of the feed hopper. A lifting structure is fixedly connected to the top of the placement platform. A cleaning structure is provided on the surface of the lifting structure, and the cleaning structure is located directly above the feed hopper.
[0006] In a preferred embodiment of this invention, the lifting structure includes a frame, a lead screw, a motor, a moving block, and a placement rod. The frame is fixedly connected to the top of the placement platform, the lead screw is rotatably connected to the inside of the frame, the motor is fixedly connected to the top of the frame, and the output end of the motor is fixedly connected to the top of the lead screw. The moving block is threadedly connected to the surface of the lead screw, the placement rod is fixedly connected to the left side of the moving block, and the cleaning structure is fixedly connected to the top of the placement rod. By setting the lifting structure, the cleaning structure can be moved, and then the cleaning structure can clean the inner wall of the vertical pipe of the feed hopper.
[0007] As a preferred embodiment of this utility model, the cleaning structure includes an electric cylinder, a transmission rod, and a placement block. The electric cylinder is fixedly connected to the top of the placement rod, the transmission rod is fixedly connected to the output end of the electric cylinder, and the placement block is fixedly connected to the bottom of the transmission rod. The placement block is positioned directly above the feed hopper. By setting up the cleaning structure, the inner wall of the feed hopper can be cleaned, preventing a large amount of material from adhering to the inner wall of the feed hopper.
[0008] In a preferred embodiment of this invention, the placement block has an internal cavity, and an electric component is fixedly connected inside the cavity. The output end of the electric component extends through and out of the bottom of the placement block, and a cleaning disc is fixedly connected to the output end of the electric component. By setting up the cavity, the electric component, and the cleaning disc, the cleaning disc can be rotated by the electric component, and then the inner wall of the feed hopper can be cleaned by the cleaning disc.
[0009] As a preferred embodiment of this utility model, a support plate is fixedly connected to the left side of the movable block. The support plate is fixedly connected to the surface of the placement rod. By setting the support plate, the placement rod can be supported, thereby improving the stability of the placement rod when it moves.
[0010] As a preferred embodiment of this utility model, the cleaning disc can clean the inner wall of the vertical pipe of the feed hopper after it descends. By setting the cleaning disc, the inner wall of the feed hopper can be cleaned, thereby preventing material from adhering to the inner wall of the feed hopper.
[0011] As a preferred embodiment of this utility model, a through hole is provided on the side of the placement rod corresponding to the transmission rod, and the transmission rod is located inside the through hole. By providing the through hole, the movement trajectory of the transmission rod can be provided, thereby facilitating the movement of the transmission rod.
[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0013] 1. This utility model solves the problem of insufficient material supply to the production line caused by the material adhering to the inner wall reducing the actual usable channel area for material discharge, resulting in fluctuations in the feeding amount over time. This is achieved by setting up a drying device, feeding hopper, placement platform, lifting structure, frame, lead screw, motor, moving block, placement rod, cleaning structure, electric cylinder, transmission rod, placement block, cavity, electric components, cleaning disc, support plate and through hole in combination.
[0014] 2. This utility model, by setting up a lifting structure, can drive the cleaning structure to move, and then the cleaning structure cleans the inner wall of the vertical pipe of the feed hopper. Attached Figure Description
[0015] Figure 1This is a three-dimensional structural schematic diagram of the fluidized bed drying device provided in an embodiment of the present invention;
[0016] Figure 2 This is a three-dimensional structural diagram of the lifting structure provided in this embodiment of the utility model;
[0017] Figure 3 This is a three-dimensional structural diagram of the lifting structure and cleaning structure provided in this embodiment of the utility model;
[0018] Figure 4 This is a perspective sectional view of the feeding hopper and cleaning structure provided in this embodiment of the utility model.
[0019] In the diagram: 1. Drying device; 2. Feed hopper; 3. Placement platform; 4. Lifting structure; 401. Frame; 402. Lead screw; 403. Motor; 404. Moving block; 405. Placement rod; 5. Cleaning structure; 501. Electric cylinder; 502. Transmission rod; 503. Placement block; 6. Cavity; 7. Electric components; 8. Cleaning disc; 9. Support plate; 10. Through hole. Detailed Implementation
[0020] To further understand the invention content, features and effects of this utility model, the following embodiments are provided, and detailed descriptions are given in conjunction with the accompanying drawings.
[0021] The structure of this utility model will now be described in detail with reference to the accompanying drawings.
[0022] like Figures 1 to 4 As shown in the figure, the fluidized bed drying device for producing anionic polyacrylamide provided by this utility model embodiment includes a drying device 1 and a feed hopper 2. The feed hopper 2 is fixedly connected to the left side of the drying device 1. A placement platform 3 is fixedly connected to the left side of the drying device 1. The placement platform 3 is sleeved on the surface of the feed hopper 2. A lifting structure 4 is fixedly connected to the top of the placement platform 3. A cleaning structure 5 is provided on the surface of the lifting structure 4, and the cleaning structure 5 is located directly above the feed hopper 2.
[0023] refer to Figure 2 and Figure 3 The lifting structure 4 includes a frame 401, a lead screw 402, a motor 403, a moving block 404, and a placement rod 405. The frame 401 is fixedly connected to the top of the placement platform 3. The lead screw 402 is rotatably connected to the inside of the frame 401. The motor 403 is fixedly connected to the top of the frame 401, and the output end of the motor 403 is fixedly connected to the top of the lead screw 402. The moving block 404 is threadedly connected to the surface of the lead screw 402. The placement rod 405 is fixedly connected to the left side of the moving block 404. The cleaning structure 5 is fixedly connected to the top of the placement rod 405.
[0024] The above solution is adopted: by setting up the lifting structure 4, the cleaning structure 5 can be moved, and then the cleaning structure 5 can clean the inner wall of the vertical pipe of the feed hopper 2.
[0025] refer to Figure 3 The cleaning structure 5 includes an electric cylinder 501, a transmission rod 502, and a placement block 503. The electric cylinder 501 is fixedly connected to the top of the placement rod 405, the transmission rod 502 is fixedly connected to the output end of the electric cylinder 501, and the placement block 503 is fixedly connected to the bottom of the transmission rod 502. The placement block 503 is located directly above the feed hopper 2.
[0026] The above solution is adopted: by setting up the cleaning structure 5, the inner wall of the feed hopper 2 can be cleaned, avoiding the adhesion of a large amount of material to the inner wall of the feed hopper 2.
[0027] refer to Figure 4 The placement block 503 has a cavity 6 inside, and an electric component 7 is fixedly connected inside the cavity 6. The output end of the electric component 7 passes through and extends out of the bottom of the placement block 503, and a cleaning disc 8 is fixedly connected to the output end of the electric component 7.
[0028] The above scheme is adopted: by setting up cavity 6, electric component 7 and cleaning disc 8, the cleaning disc 8 can be driven by electric component 7 to rotate, and then the inner wall of feed hopper 2 can be cleaned by cleaning disc 8.
[0029] refer to Figure 4 A support plate 9 is fixedly connected to the left side of the movable block 404, and the support plate 9 is fixedly connected to the surface of the placement rod 405.
[0030] By adopting the above solution, the support plate 9 can be set to support the placement rod 405, thereby improving the stability of the placement rod 405 when it moves.
[0031] refer to Figure 4 After the cleaning disc 8 descends, it can clean the inner wall of the vertical pipe of the feed hopper 2.
[0032] The above solution is adopted: by setting up a cleaning disc 8, the inner wall of the feed hopper 2 can be cleaned by the cleaning disc 8, thereby preventing materials from adhering to the inner wall of the feed hopper 2.
[0033] refer to Figure 4 A through hole 10 is provided on the surface of the placement rod 405 on one side corresponding to the transmission rod 502, and the transmission rod 502 is located inside the through hole 10.
[0034] By adopting the above solution, by setting through hole 10, the movement trajectory of transmission rod 502 can be provided, thereby facilitating the movement of transmission rod 502.
[0035] The working principle of this utility model:
[0036] In use, the motor 403 is started, which drives the lead screw 402 to rotate. The lead screw 402 drives the threaded moving block 404 to move. When the moving block 404 moves, it drives the placement rod 405 to move. After the placement rod 405 moves to the designated position, the electric cylinder 501 is started. The electric cylinder 501 drives the transmission rod 502 to descend. When the transmission rod 502 moves, it drives the placement block 503 to descend. Then the internal electric component 7 can be started. The electric component 7 drives the cleaning disc 8 to rotate, and then the inner wall of the vertical pipe of the feed hopper 2 can be cleaned.
[0037] In summary, this fluidized bed drying device for producing anionic polyacrylamide, through the coordinated use of drying device 1, feed hopper 2, placement platform 3, lifting structure 4, frame 401, lead screw 402, motor 403, moving block 404, placement rod 405, cleaning structure 5, electric cylinder 501, transmission rod 502, placement block 503, cavity 6, electric components 7, cleaning disc 8, support plate 9, and through hole 10, solves the problem that material adhering to the inner wall reduces the actual usable channel area for material discharge, causing the feed rate to fluctuate over time and thus leading to insufficient material supply in the production line.
[0038] It should be noted that the motor, electric cylinder, and electric components are existing devices or equipment, or devices or equipment that can be implemented with existing technology. Furthermore, the specific composition and principle of the power supply for the motor, electric cylinder, and electric components are clear to those skilled in the art, and therefore will not be described in detail.
[0039] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0040] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A fluidized bed drying device for the production of anionic polyacrylamide, comprising a drying device (1) and a feed hopper (2), characterized in that: The feed hopper (2) is fixedly connected to the left side of the drying device (1). A placement platform (3) is fixedly connected to the left side of the drying device (1). The placement platform (3) is fitted onto the surface of the feed hopper (2). A lifting structure (4) is fixedly connected to the top of the placement platform (3). A cleaning structure (5) is provided on the surface of the lifting structure (4), and the cleaning structure (5) is located directly above the feed hopper (2).
2. A fluid bed drying apparatus for the production of an anionic polyacrylamide as claimed in claim 1, characterised in that: The lifting structure (4) includes a frame (401), a lead screw (402), a motor (403), a moving block (404), and a placement rod (405). The frame (401) is fixedly connected to the top of the placement platform (3). The lead screw (402) is rotatably connected to the inside of the frame (401). The motor (403) is fixedly connected to the top of the frame (401), and the output end of the motor (403) is fixedly connected to the top of the lead screw (402). The moving block (404) is threadedly connected to the surface of the lead screw (402). The placement rod (405) is fixedly connected to the left side of the moving block (404). The cleaning structure (5) is fixedly connected to the top of the placement rod (405).
3. A fluid bed drying apparatus for the production of an anionic polyacrylamide as claimed in claim 2, characterised in that: The cleaning structure (5) includes an electric cylinder (501), a transmission rod (502), and a placement block (503). The electric cylinder (501) is fixedly connected to the top of the placement rod (405), the transmission rod (502) is fixedly connected to the output end of the electric cylinder (501), and the placement block (503) is fixedly connected to the bottom of the transmission rod (502). The placement block (503) is located directly above the feed hopper (2).
4. The fluidized bed drying apparatus for producing anionic polyacrylamide as described in claim 3, characterized in that: The placement block (503) has a cavity (6) inside, and an electric component (7) is fixedly connected inside the cavity (6). The output end of the electric component (7) passes through and extends out of the bottom of the placement block (503). A cleaning disc (8) is fixedly connected to the output end of the electric component (7).
5. A fluid bed drying apparatus for the production of an anionic polyacrylamide as claimed in claim 2, characterised in that: A support plate (9) is fixedly connected to the left side of the movable block (404), and the support plate (9) is fixedly connected to the surface of the movable block (404).
6. A fluid bed drying apparatus for the production of an anionic polyacrylamide as claimed in claim 4, characterised in that: The cleaning disc (8) can clean the inner wall of the vertical pipe of the feed hopper (2) after it descends.
7. A fluid bed drying apparatus for the production of an anionic polyacrylamide as claimed in claim 3, characterised in that: A through hole (10) is provided on the surface of the placement rod (405) on one side corresponding to the transmission rod (502), and the transmission rod (502) is located inside the through hole (10).