A device for preparing desulfurized gypsum powder
By using a motor-driven cam to drive the support block and swing plate for vibrating screening in the desulfurized gypsum powder preparation device, and equipped with a cleaning plate to clean the screen plate holes, the clogging problem in the desulfurized gypsum powder processing is solved, achieving efficient screening and extending equipment life.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 唐山天峰科技有限公司
- Filing Date
- 2025-06-23
- Publication Date
- 2026-06-09
AI Technical Summary
In existing technologies, desulfurized gypsum powder processing devices are prone to clogging during screening after crushing, leading to extended production cycles and reduced production efficiency, and the clogging cannot be effectively prevented.
A desulfurized gypsum powder preparation device is adopted, which uses a motor-driven cam to drive the support block and swing plate to vibrate and screen. It is also equipped with a cleaning plate to clean the screen plate holes, avoid clogging, and extend the service life of the equipment.
It effectively prevents screen plate clogging, increases screening speed, extends equipment service life, maintains production continuity, and improves production efficiency.
Smart Images

Figure CN224332700U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of gypsum powder processing technology, and more specifically, to a desulfurized gypsum powder preparation device. Background Technology
[0002] Desulfurized gypsum powder is an industrial byproduct generated during the limestone-gypsum desulfurization process in power plants and other applications. Its main component is calcium sulfate dihydrate, and it is a white powder with high purity and stable composition. Crushing and screening it can process the lumpy material into different particle sizes to meet the needs of subsequent calcination and board manufacturing. This is a crucial step in promoting the resource utilization of desulfurized gypsum in fields such as cement retarders and gypsum board.
[0003] Publication No. (CN218132259U) discloses a dispersing device for processing desulfurized gypsum powder, including a dispersing cylinder with an inlet and an outlet. A drive shaft is rotatably mounted on the dispersing cylinder, and a first and second dispersing blade are fixedly mounted on the drive shaft, arranged in a specific order. An upper and lower filter screen are fixedly mounted inside the dispersing cylinder, and an mounting plate is fixedly mounted on the drive shaft. The mounting plate is equipped with a precision grinding structure that is easy to replace. Using the dispersing cylinder as the main structure, the dispersing process of desulfurized gypsum takes place within the dispersing cylinder. The dispersing process is driven by the drive shaft, which rotates multiple blades on the cylinder. The precision grinding structure grinds the gypsum into powder, performing a secondary processing. Compared to a primary dispersing structure, this method achieves better processing results, ultimately yielding desulfurized gypsum powder with a fine and uniform particle size.
[0004] However, this dispersing device for desulfurized gypsum powder processing has the following drawbacks: when lime powder falls onto the lower sieve plate, it accumulates, increasing the risk of clogging. It cannot prevent clogging or increase the screening speed during the screening of desulfurized gypsum after crushing. When lime powder accumulates on the lower sieve plate, the effective screening area of the sieve plate is significantly reduced. Desulfurized gypsum particles that could normally pass through the sieve plate quickly cannot fall smoothly to complete the screening process due to the obstruction of the accumulated material. This forces the equipment to spend more time processing the same amount of desulfurized gypsum, extending the production cycle. Simultaneously, the accumulation increases the risk of clogging; once the sieve plate is clogged, the equipment must be stopped for cleaning. Frequent shutdowns further disrupt the production rhythm, leading to a significant decline in overall production efficiency and severely impacting the company's production progress and capacity output. Utility Model Content
[0005] In order to overcome the above-mentioned defects of the prior art, the present invention provides a desulfurized gypsum powder preparation device to solve the problem that the prior art cannot prevent clogging and increase the screening speed when screening desulfurized gypsum after crushing.
[0006] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a desulfurized gypsum powder preparation device, comprising...
[0007] The housing and motor are connected as follows: a sieve plate is fixedly connected to the inner wall of the housing; a cam is fixedly connected to the drive end of the motor; a support block is rotatably connected to the inner wall of the sieve plate; an elastic element is fixedly connected to the outside of the support block; a swing plate is fixedly connected to the outside of the support block; and two cleaning plates are slidably connected to the inner wall of the swing plate.
[0008] Both cleaning plates are fixedly connected to the outside of a pressure plate. An S-shaped elastic element is fixedly connected to the end of the pressure plate away from the cleaning plate. A feed inlet is opened at the top of the box and a discharge outlet is opened at the bottom of the box. A recycling pipe is fixedly connected to the outside of the box. A sliding groove is opened on the inner wall of the swing plate.
[0009] The end of the S-shaped elastic element away from the pressure plate is fixedly connected to the inner wall of the swing plate, a support frame is fixedly connected to the outside of the sieve plate, and a fixing block is fixedly connected to the end of the elastic element away from the support block.
[0010] The end of the cleaning plate away from the swing plate is in contact with the outside of the sieve plate, and the end of the support block away from the elastic element is in contact with the outside of the cam.
[0011] The outer side of the pressure plate is slidably connected to the inner wall of the swing plate, and the inner wall of the pressure plate is slidably connected to the inner wall of the pressure plate.
[0012] The end of the motor away from the cam is fixedly connected to the inner wall of the support frame, and the outer side of the fixing block is fixedly connected to the outer side of the sieve plate.
[0013] The S-shaped elastic element is externally fixedly connected to the inner wall of the chute, and the cleaning plate is externally movably connected to the inner wall of the chute.
[0014] Compared with the prior art, the beneficial effects of this utility model are:
[0015] In the above scheme, the cam is driven to rotate by starting the motor, which causes the support block to swing repeatedly with the swing plate. The swing plate swings to better act on the particles and speed up the screening process, while avoiding blockage. The cam acts on the support block to make it swing, which generates vibration. This plays a role in screening lime particles and preventing the screen plate from clogging. At the same time, when the swing plate swings, the cleaning plate can clean the lime particles on the surface of the screen plate and in the holes, keeping the screen plate with a sufficient screening environment and extending the service life of the equipment. Attached Figure Description
[0016] Figure 1This is a schematic diagram of the overall structure of this utility model;
[0017] Figure 2 This is a schematic diagram of the swing plate structure of this utility model;
[0018] Figure 3 This is a schematic diagram of the support block structure of this utility model;
[0019] Figure 4 This is a schematic diagram of the cleaning plate structure of this utility model.
[0020] [Figure Labels]
[0021] 1. Box body; 2. Screen plate; 3. Support frame; 4. Motor; 5. Cam; 6. Support block; 7. Elastic element 1; 8. Fixed block; 9. Swing plate; 10. Pressure plate; 11. Cleaning plate; 12. S-shaped elastic element; 13. Feed inlet; 14. Discharge outlet; 15. Recycling pipe; 16. Slide chute. Detailed Implementation
[0022] To make the technical problems, technical solutions and advantages of this utility model clearer, a detailed description will be given below in conjunction with the accompanying drawings and specific embodiments.
[0023] Example 1: Please refer to Figures 1 to 4 This utility model provides a technical solution: a desulfurized gypsum powder preparation device, including a housing 1 and a motor 4. A sieve plate 2 is fixedly connected to the inner wall of the housing 1. A cam 5 is fixedly connected to the drive end of the motor 4. A support block 6 is rotatably connected to the inner wall of the sieve plate 2. An elastic element 7 is fixedly connected to the outside of the support block 6. A swing plate 9 is fixedly connected to the outside of the support block 6. Two cleaning plates 11 are slidably connected to the inner wall of the swing plate 9. The end of the cleaning plate 11 away from the swing plate 9 is in contact with the outside of the sieve plate 2. The end of the support block 6 away from the elastic element 7 is in contact with the outside of the cam 5.
[0024] By starting the motor 4, the cam 5 acts on the support block 6, causing the support block 6 to swing. The swing plate 9 swings along with the support block 6, which speeds up the screening of lime particles. At the same time, the cleaning plate 11 can clean some lime particles stuck in the holes of the screen plate 2, extending the service life of the equipment.
[0025] Example 2: Based on Example 1, in order to facilitate the cleaning of the sieve plate 2, pressure plates 10 are fixedly connected to the outside of both cleaning plates 11. An S-shaped elastic element 12 is fixedly connected to the end of the pressure plate 10 away from the cleaning plate 11. A feed inlet 13 is opened at the top of the box body 1, and a discharge outlet 14 is opened at the bottom of the box body 1. A recycling pipe 15 is fixedly connected to the outside of the box body 1. A sliding groove 16 is opened on the inner wall of the swing plate 9. The outside of the pressure plate 10 is slidably connected to the inner wall of the swing plate 9, and the inner wall of the pressure plate 10 is slidably connected to the inner wall of the pressure plate 10. The outside of the S-shaped elastic element 12 is fixedly connected to the inner wall of the sliding groove 16, and the outside of the cleaning plate 11 is movably connected to the inner wall of the sliding groove 16.
[0026] When the swing plate 9 swings, the cleaning plate 11 in the swing plate 9 contacts the screen plate 2, and the pressure plate 10 squeezes the S-shaped elastic element 12, causing the S-shaped elastic element 12 to deform and contract. This ensures that the cleaning plate 11 is tightly attached to the surface of the screen plate 2, cleaning the lime particles stuck in the holes of the screen plate 2, maintaining a sufficient screening environment for the screen plate 2 at all times, and extending the service life of the equipment.
[0027] Example 3: Based on Example 2, in order to achieve a faster screening effect more conveniently, the end of the S-shaped elastic element 12 away from the pressure plate 10 is fixedly connected to the inner wall of the swing plate 9, the outside of the screen plate 2 is fixedly connected to the support frame 3, the end of the elastic element 7 away from the support block 6 is fixedly connected to the fixing block 8, the end of the motor 4 away from the cam 5 is fixedly connected to the inner wall of the support frame 3, and the outside of the fixing block 8 is fixedly connected to the outside of the screen plate 2.
[0028] The starting motor 4 drives the cam 5 to rotate. Since the cam 5 is elliptical, it continuously impacts the support block 6 while rotating, causing the support block 6 to squeeze the elastic element 7 connected to the fixed block 8. After being squeezed, the elastic element 7 contracts and releases potential energy, causing the support block 6 to drive the swing plate 9 to swing continuously. The swing plate 9 swings the crushed lime particles, allowing the smaller particles to fall from the screen plate 2. As the swing plate 9 swings repeatedly, and the screen plate 2 is at a certain angle inside the box 1, some larger particles are discharged and recovered through the recovery pipe 15, while some finer particles fall from the screen plate 2 and are discharged from the outlet 14. The swing of the swing plate 9 is designed to better act on the particles, speed up the screening process, and avoid clogging. The vibration generated by the cam 5 acting on the support block 6 also contributes to the screening of lime particles and the prevention of clogging of the screen plate 2.
[0029] The working process of this utility model is as follows:
[0030] First, the dehydrated desulfurized gypsum is poured into the feed inlet 13. After being crushed by the crushing rollers, it falls onto the screen plate 2. At this time, the motor 4 is started, driving the cam 5 to rotate. Since the cam 5 is elliptical, it continuously impacts the support block 6 while rotating, causing the support block 6 to compress the elastic element 7 connected to the fixed block 8. After being compressed, the elastic element 7 contracts and releases potential energy, causing the support block 6 to drive the swing plate 9 to swing continuously. The swing plate 9 swings the crushed lime particles, causing some fine particles to fall from the screen plate 2. During the repeated swinging of the swing plate 9, and because the screen plate 2 is at a certain angle inside the housing 1, some larger particles are also affected. The oscillating plate 9 acts on the recovery pipe 15 for discharge and recovery. Some finer particles will fall from the screen plate 2 and be discharged from the outlet 14. The oscillation of the oscillating plate 9 is to better act on the particles and speed up the screening process, while avoiding blockage. The cam 5 acts on the support block 6 to make it oscillate, which makes it play a role in screening lime particles and preventing the screen plate 2 from being blocked. When the oscillating plate 9 oscillates, when the cleaning plate 11 in the oscillating plate 9 comes into contact with the screen plate 2, it will squeeze the S-shaped elastic element 12 through the pressure plate 10, causing the S-shaped elastic element 12 to deform and shrink. This allows the cleaning plate 11 to stick tightly to the surface of the screen plate 2 and clean the lime particles stuck in the holes of the screen plate 2. This ensures that the screen plate 2 has a sufficient screening environment at all times and extends the service life of the equipment.
[0031] Finally, the following points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection", and "linkage" should be interpreted broadly, and can be mechanical or electrical connections, or internal connections between two components, or direct connections. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may change.
[0032] Secondly: The accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other.
[0033] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. 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 desulfurized gypsum powder preparation device, comprising a housing (1) and a motor (4), characterized in that, The inner wall of the box (1) is fixedly connected to a sieve plate (2), the drive end of the motor (4) is fixedly connected to a cam (5), the inner wall of the sieve plate (2) is rotatably connected to a support block (6), the outside of the support block (6) is fixedly connected to an elastic element (7), the outside of the support block (6) is fixedly connected to a swing plate (9), and the inner wall of the swing plate (9) is slidably connected to two cleaning plates (11).
2. The desulfurized gypsum powder preparation device according to claim 1, characterized in that, Both cleaning plates (11) are fixedly connected to the outside of a pressure plate (10). An S-shaped elastic element (12) is fixedly connected to the end of the pressure plate (10) away from the cleaning plate (11). A feed inlet (13) is provided at the top of the box (1). A discharge outlet (14) is provided at the bottom of the box (1). A recycling pipe (15) is fixedly connected to the outside of the box (1). A sliding groove (16) is provided on the inner wall of the swing plate (9).
3. The desulfurized gypsum powder preparation device according to claim 2, characterized in that, The end of the S-shaped elastic element (12) away from the pressure plate (10) is fixedly connected to the inner wall of the swing plate (9), the outside of the sieve plate (2) is fixedly connected to the support frame (3), and the end of the elastic element (7) away from the support block (6) is fixedly connected to the fixing block (8).
4. The desulfurized gypsum powder preparation device according to claim 1, characterized in that, The cleaning plate (11) is in contact with the outside of the sieve plate (2) at one end away from the swing plate (9), and the support block (6) is in contact with the outside of the cam (5) at one end away from the elastic element (7).
5. The desulfurized gypsum powder preparation device according to claim 2, characterized in that, The outer side of the pressure plate (10) is slidably connected to the inner wall of the swing plate (9), and the inner wall of the pressure plate (10) is slidably connected to the inner wall of the pressure plate (10).
6. The desulfurized gypsum powder preparation device according to claim 3, characterized in that, The end of the motor (4) away from the cam (5) is fixedly connected to the inner wall of the support frame (3), and the outside of the fixing block (8) is fixedly connected to the outside of the sieve plate (2).
7. The desulfurized gypsum powder preparation device according to claim 2, characterized in that, The S-shaped elastic element (12) is externally fixedly connected to the inner wall of the slide groove (16), and the cleaning plate (11) is externally movably connected to the inner wall of the slide groove (16).
Citation Information
Patent Citations
Scattering device for processing desulfurized gypsum powder
CN218132259U