A screening device for galvanizing additive production
By using a multi-layer sieve design and a magnetic folding plate, the problem of multi-stage fine screening and maintenance difficulties in existing screening devices used for galvanizing additive production has been solved, achieving efficient particle size classification and dust collection, and improving screening efficiency and equipment stability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HONGZHENG (FUJIAN) CHEM CO LTD
- Filing Date
- 2025-08-18
- Publication Date
- 2026-07-21
AI Technical Summary
Existing screening devices for galvanizing additive production cannot achieve multi-stage fine screening, and the rigid connection between the fixed screen and the drive mechanism makes maintenance difficult, resulting in low screening efficiency and inconvenient maintenance.
Adopting a multi-layer sieve design, the drive wheel and drive belt are linked to support the shaft to drive the dust collection bucket to rotate. The air pump generates negative pressure and sucks in dust through the retractable connecting pipe. The folding plate and T-slot are magnetically fixed to achieve multi-level particle size classification and convenient cleaning.
It achieves efficient multi-stage particle size classification, reduces dust pollution, improves screening efficiency and maintenance convenience, and ensures stable equipment operation.
Smart Images

Figure CN224525269U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of zinc plating additive production, and in particular to a screening device for zinc plating additive production. Background Technology
[0002] The production of zinc plating additives involves reacting raw materials such as hexamethylenetetramine and 2-thiol-based inter-nitrogen indene with epichlorohydrin under mild conditions to produce an alkaline zincate zinc plating additive that has both leveling and brightening effects. Sieving is necessary because the synthesized crystalline particles contain a mixture of primary fine and loose high-quality particles and secondary coarse particles. The secondary particles reduce the protective properties and appearance quality of the coating. By using a sieving device to separate the two, the finer and more efficient primary particles are retained for subsequent electroplating, thereby ensuring that the zinc plating layer is smooth, bright, corrosion-resistant, and the process is stable.
[0003] A search revealed a Chinese patent announcement (CN220195526U) that discloses a screening device for producing galvanized additives. The device utilizes a frame, feed inlet, and support frame to facilitate the screening of primary particles. The synthesized galvanized particles are poured into the feed inlet and fall onto the screening screen. A linear motor moves left and right within an electromagnetic rail, causing the springs on both sides to sway the screen and the screen itself. The screen moves left and right along with the springs, and the holes in the screen separate the larger secondary particles. The smaller primary particles fall through the holes in the screen and into the receiving frame due to the swaying motion.
[0004] The above-mentioned technical solutions achieve the purpose of convenient screening of primary particles through structures such as frames, feed inlets, and support frames. They only use a single screening screen and holes for simple two-stage separation, which cannot achieve multi-stage fine screening. At the same time, the rigid connection between the fixed screen and the drive mechanism makes maintenance difficult. When large particles remain stuck after screening, the machine needs to be stopped and the screen gaps need to be manually cleaned, which reduces screening efficiency. Therefore, a screening device for galvanizing additive production is proposed to solve the above problems. Utility Model Content
[0005] To overcome the above shortcomings, this utility model provides a screening device for the production of galvanized additives, which aims to improve the problem of maintenance difficulties caused by the rigid connection between the fixed screen and the drive mechanism in the existing screening device for the production of galvanized additives.
[0006] To achieve the above objectives, the present invention adopts the following technical solution: a screening device for the production of galvanized additives, comprising a housing, a feed hopper fixedly connected to the top of the housing, a screening box disposed inside the housing, a screening tray disposed inside the screening box, a folding plate hinged to the outer wall of the screening tray, a T-shaped block fixedly connected to the side wall of the folding plate, a T-slot formed on the outer wall of the screening box, a corresponding eccentric wheel driven by a motor and a rotating shaft on the housing, a fixed frame fixedly connected to the inner wall of the housing, a slide rail slidably connected to the inner wall of the fixed frame, a connecting rod fixedly connected to the outer wall of the slide rail, a slide bar slidably connected to the inner wall of the housing, a connecting plate fixedly connected to the end of the slide bar, and a spring fixedly connected to the outer wall of the housing.
[0007] As a further description of the above technical solution:
[0008] The slide rod passes through one side of the outer wall of the housing, the spring is located in the cavity of the slide rod, and the end of the spring is fixedly connected to the outer wall of the connecting plate.
[0009] As a further description of the above technical solution:
[0010] The top of the carriage has an insertion hole, and a plug is inserted into the inner wall of the insertion hole.
[0011] As a further description of the above technical solution:
[0012] The top of the insertion post is fixedly connected to the bottom of the screening box.
[0013] As a further description of the above technical solution:
[0014] The outer wall of the T-shaped block is adapted to the inner wall of the T-shaped groove, and the inner wall of the screening box is magnetically connected to the outer wall of the T-shaped block by a magnet.
[0015] As a further description of the above technical solution:
[0016] The outer wall of the rotating shaft is connected to a transmission belt via a transmission wheel. The transmission belt is also connected to a support shaft via a transmission wheel. The outer wall of the support shaft is rotatably connected to a support frame. A dust collection hopper is fixedly connected to the end of the support shaft. A connecting pipe is fixedly connected to the inner wall of the dust collection hopper. A storage box is fixedly connected to the inner wall of the connecting pipe. A filter screen is fixedly connected to the inner wall of the storage box. An air pump is fixedly connected to the outer wall of the storage box.
[0017] As a further description of the above technical solution:
[0018] The outer wall of the support frame is fixedly connected to the back of the housing, and the opening of the dust collection hopper is positioned facing the top of the feed hopper.
[0019] As a further description of the above technical solution:
[0020] The top part of the connecting pipe is retractable, and the connecting pipe passes through the storage box.
[0021] As a further description of the above technical solution:
[0022] The air inlet of the air pump passes through the storage tank, and the air inlet of the air pump is located on the side of the filter screen away from the connecting pipe.
[0023] As a further description of the above technical solution:
[0024] The outer wall of the storage box is fixedly connected to the outer wall of the shell.
[0025] This utility model has the following beneficial effects:
[0026] 1. In this utility model, the material is screened step by step through multiple layers of sieve holes. The transmission wheel and transmission belt are linked to support the shaft to drive the dust collection bucket to rotate. The air pump is started to create negative pressure in the storage box. The material dust is sucked in through the telescopic connecting pipe and intercepted and collected by the filter screen. Clean air is discharged, which effectively collects dust, improves the working environment, achieves clean discharge, and avoids the waste of resources caused by dust caused by screening.
[0027] 2. In this utility model, efficient particle size classification is achieved through multi-stage sieve holes. The magnetic fixation of the folding plate and T-shaped groove and the inclined groove bottom design ensure that the structure is stable and does not shift during vibrating screening, and effectively prevents particles from accumulating and getting stuck in the groove. The folding opening and closing structure, combined with the column support, makes cleaning and material handling convenient and labor-saving. The equipment is placed stably and safely, improving screening efficiency and maintenance convenience. Attached Figure Description
[0028] Figure 1 This is a front view schematic diagram of the main structure of a screening device for producing galvanizing additives according to this utility model;
[0029] Figure 2 This is a schematic diagram showing the separation of the shell and screening box of a screening device for producing galvanizing additives according to this utility model.
[0030] Figure 3 This is a top view of the casing of a screening device for producing galvanizing additives according to this utility model;
[0031] Figure 4 This is a rear view schematic diagram of the main structure of a screening device for producing galvanizing additives proposed in this utility model.
[0032] Legend:
[0033] 1. Shell; 2. Feed hopper; 3. Screening box; 4. Screening tray; 5. Folding plate; 6. T-block; 7. T-slot; 8. Mounting frame; 9. Motor; 10. Shaft; 11. Eccentric wheel; 12. Fixing frame; 13. Slide; 14. Connecting rod; 15. Slide rod; 16. Insertion hole; 17. Insertion post; 18. Drive belt; 19. Support frame; 20. Support shaft; 21. Dust suction hopper; 22. Connecting pipe; 23. Storage box; 24. Air pump; 25. Filter screen; 26. Connecting plate; 27. Spring. Detailed Implementation
[0034] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0035] Reference Figures 1-3This utility model provides an embodiment of a screening device for the production of galvanizing additives, comprising a housing 1, with a discharge port on the outer wall of the housing 1 for the centralized discharge of screened material. The discharge port is sealed by a sealing cap to prevent material leakage or the entry of external impurities during the screening process. The inner wall of the housing is provided with an inclined surface to guide the screened material towards the discharge port, avoiding residue accumulation. The inclined surface is tilted towards the discharge port to enhance the guiding effect of the material flow. A feed hopper 2 is fixedly connected to the top of the housing 1. The interior of the housing 1 is provided with… The system includes a screening box 3, inside which are screening trays 4 for stratifying and accommodating materials of different particle sizes. Multiple screening trays 4 are arranged equidistantly within the screening box 3. Each screening tray 4 and the bottom of the screening box 3 has several sets of equidistantly distributed screen holes, allowing materials meeting the particle size requirements to pass through. The screen hole diameter decreases progressively from top to bottom, achieving graded screening of materials from coarse to fine. Folding plates 5 are hinged to the outer wall of each screening tray 4, with folding plates 5 on both sides of each tray 4, facilitating the opening of the tray and removal of its contents. The material is connected to a T-shaped block 6 fixedly to the side wall of the folding plate 5. A T-shaped groove 7 is formed on the outer wall of the screening box 3. The bottom area of the T-shaped groove 7 is inclined to prevent galvanized particles from accumulating inside the T-shaped groove 7. The outer wall of the T-shaped block 6 matches the inner wall of the T-shaped groove 7. The inner wall of the screening box 3 is magnetically connected to the outer wall of the T-shaped block 6 via magnets, enhancing the stability of the folding plate 5 after closure and preventing loosening during vibration. Magnets are embedded in the inner wall of the screening box 3 around the T-shaped groove 7, magnetically attracting the T-shaped block 6. The outer wall of the shell 1 is fixedly connected. There is a mounting bracket 8, and a motor 9 is fixedly connected to the outer wall of the mounting bracket 8. A rotating shaft 10 is fixedly connected to the output end of the motor 9. An eccentric wheel 11 is fixedly connected to the end of the rotating shaft 10. The eccentric wheel 11 controls the rotating shaft 10 to rotate back and forth left and right through the motor 9, applying a pressing force to the right slide 13, so that it slides on the fixed bracket 12. The fixed bracket 12 is fixedly connected to the inner wall of the housing 1, and the slide 13 is slidably connected to the inner wall of the fixed bracket 12. The slide 13 is provided in two sets, which are connected to the two sides of the slide 13 through the left and right ends of the two sets of connecting rods 14.
[0036] Reference Figures 2-4 The slide 13 has an insertion hole 16 at the top, and an insertion post 17 is inserted into the inner wall of the insertion hole 16. The top of the insertion post 17 is fixedly connected to the bottom of the screening box 3. Four sets of insertion posts 17 are arranged in a rectangular array at the bottom of the screening box 3. When the screening box 3 is removed, the insertion posts 17 can contact the ground to provide support. A connecting rod 14 is fixedly connected to the outer wall of the slide 13. A slide rod 15 is slidably connected to the inner wall of the housing 1. The slide rod 15 passes through one side of the outer wall of the housing 1. A spring 27 is fixedly connected to the outer wall of the housing 1. The spring 27 is located in the cavity of the slide rod 15. The end of the spring 27 is fixedly connected to the outer wall of the connecting plate 26. The end of the slide rod 15 is fixedly connected to the connecting plate 26. There are two sets of slide rods 15. The connecting plate 26 connects the two sets of slide rods 15.
[0037] Reference Figures 3-4 The outer wall of the rotating shaft 10 is connected to the transmission belt 18 via the transmission wheel. The transmission belt 18 is also connected to the support shaft 20 via the transmission wheel. The outer wall of the support shaft 20 is rotatably connected to the support frame 19. The outer wall of the support frame 19 is fixedly connected to the back of the housing 1. The end of the support shaft 20 is fixedly connected to the dust collection hopper 21. The opening of the dust collection hopper 21 faces the top of the feed hopper 2. The inner wall of the dust collection hopper 21 is fixedly connected to the connecting pipe 22. The top part of the connecting pipe 22 is retractable. The inner wall of the connecting pipe 22 is fixedly connected to the storage box 23. The outer wall of the storage box 23 is fixedly connected to the outer wall of the housing 1. The connecting pipe 22 passes through the storage box 23. The inner wall of the storage box 23 is fixedly connected to the filter screen 25. The outer wall of the storage box 23 is fixedly connected to the air pump 24. The air inlet of the air pump 24 passes through the storage box 23. The air inlet of the air pump 24 is located on the side of the filter screen 25 away from the connecting pipe 22.
[0038] Working principle: The galvanized additive particles to be screened are fed into the housing 1 from the feed hopper 2 and directly into the screening tray 4 on the top layer of the screening box 3. At this time, the motor 9 starts and drives the rotating shaft 10 to rotate through the output end. The eccentric wheel 11 at one end of the rotating shaft 10 rotates back and forth, continuously applying intermittent compressive force to the right slide 13. The slide 13 slides on the inner wall of the fixed frame 12. At the same time, the connecting rod 14 drives the two sets of slides 13 to move synchronously. The top of the slide 13 is connected to the bottom of the screening box 3 through the insert column 17. Therefore, the screening box 3 vibrates back and forth with the slide 13. During the vibration, the slide rod 15 on the inner wall of the shell 1 is connected to the spring 27 through the connecting plate 26. The elastic force of the spring 27 provides the reset force for the slide 13, ensuring that the screening box 3 maintains a stable high-frequency vibration state, accelerating the flow and classification of particles in the screening tray 4. The multiple screening trays 4 inside the screening box 3 play a key role. Since the diameter of the screen holes at the bottom of the screening tray 4 and the screening box 3 decreases from top to bottom, large particles of additives are intercepted by the top screen holes. Medium-sized particles are separated through the middle layer of sieve holes, while small particles fall into the bottom screening tray 4, achieving multi-stage particle size classification. The folding plates 5 on both sides of the screening tray 4 are embedded in the T-shaped grooves 7 of the screening box 3 via T-shaped blocks 6. The inclined bottom design of the T-shaped grooves 7, combined with magnetic attraction, ensures that the folding plates 5 close securely during vibration and prevents particles from accumulating in the grooves. When cleaning or material removal is required, the folding plates 5 can be easily flipped outwards to remove the screening tray 4. After operation, the insert 17 supports the screening box 3 on the ground. Simultaneously, the rotating shaft... 10 drives the support shaft 20 to rotate through the transmission wheel and transmission belt 18, so that the dust collection bucket 21 operates synchronously. After the air pump 24 is started, a negative pressure is formed in the storage box 23. The dust collection bucket 21 sucks in the dust generated during feeding through the telescopic connecting pipe 22. The dust enters the storage box 23 through the connecting pipe 22 and is intercepted and collected by the filter screen 25. Clean air is discharged from the air pump 24, effectively reducing dust pollution. After screening is completed, the sealing cover of the shell 1 is opened, and the inclined surface guides the particles to the discharge port to collect and discharge, completing the entire screening process.
[0039] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A screening device for producing galvanizing additives, comprising a housing (1), wherein a feed hopper (2) is fixedly connected to the top of the housing (1), characterized in that: The shell (1) is provided with a screening box (3) inside, and a screening tray (4) is provided inside the screening box (3). A folding plate (5) is hinged to the outer wall of the screening tray (4). A T-shaped block (6) is fixedly connected to the side wall of the folding plate (5). A T-shaped groove (7) is opened on the outer wall of the screening box (3). The shell (1) is driven by a motor (9) and a rotating shaft (10) to install a corresponding eccentric wheel (11). A fixing frame (12) is fixedly connected to the inner wall of the shell (1). A slide (13) is slidably connected to the inner wall of the fixing frame (12). A connecting rod (14) is fixedly connected to the outer wall of the slide (13). A slide rod (15) is slidably connected to the inner wall of the shell (1). A connecting plate (26) is fixedly connected to the end of the slide rod (15). A spring (27) is fixedly connected to the outer wall of the shell (1).
2. The screening device for producing galvanizing additives according to claim 1, characterized in that: The slide rod (15) passes through one side of the outer wall of the housing (1), and the spring (27) is located in the cavity of the slide rod (15). The end of the spring (27) is fixedly connected to the outer wall of the connecting plate (26).
3. The screening device for producing galvanizing additives according to claim 1, characterized in that: The top of the slide (13) is provided with a socket (16), and a plug (17) is inserted into the inner wall of the socket (16).
4. A screening device for producing galvanizing additives according to claim 3, characterized in that: The top of the insert (17) is fixedly connected to the bottom of the screening box (3).
5. A screening device for producing galvanizing additives according to claim 1, characterized in that: The outer wall of the T-shaped block (6) is adapted to the inner wall of the T-shaped groove (7), and the inner wall of the screening box (3) is magnetically connected to the outer wall of the T-shaped block (6) by a magnet.
6. A screening device for producing galvanizing additives according to claim 1, characterized in that: The outer wall of the rotating shaft (10) is connected to a transmission belt (18) via a transmission wheel. The transmission belt (18) is also connected to a support shaft (20) via a transmission wheel. The outer wall of the support shaft (20) is rotatably connected to a support frame (19). The end of the support shaft (20) is fixedly connected to a dust collection hopper (21). The inner wall of the dust collection hopper (21) is fixedly connected to a connecting pipe (22). The inner wall of the connecting pipe (22) is fixedly connected to a storage box (23). The inner wall of the storage box (23) is fixedly connected to a filter screen (25). The outer wall of the storage box (23) is fixedly connected to an air pump (24).
7. A screening device for producing galvanizing additives according to claim 6, characterized in that: The outer wall of the support frame (19) is fixedly connected to the back of the housing (1), and the opening of the dust collection hopper (21) is set facing the top of the feed hopper (2).
8. A screening device for producing galvanizing additives according to claim 6, characterized in that: The top part of the connecting pipe (22) is retractable, and the connecting pipe (22) passes through the storage box (23).
9. A screening device for producing galvanizing additives according to claim 6, characterized in that: The air inlet of the air pump (24) passes through the storage box (23), and the air inlet of the air pump (24) is located on the side of the filter screen (25) away from the connecting pipe (22).
10. A screening device for producing galvanizing additives according to claim 6, characterized in that: The outer wall of the storage box (23) is fixedly connected to the outer wall of the shell (1).