Potassium sulfate production purification device
By designing components such as screw feeders, conveying pipes, and grid plates, the problems of material contamination, personnel contact, and agglomeration in potassium sulfate purification units have been solved, achieving quantitative conveying and dispersion, and improving purification efficiency and safety.
Patent Information
- Application Number
- CN202521793552.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-08-22
- Publication Date
- 2026-08-04
- Estimated Expiration
- 2035-08-22
AI Technical Summary
Existing potassium sulfate purification equipment has problems during the production process, such as the potassium sulfate material being easily contaminated by external factors, accidental contact and inhalation by personnel, difficulty in controlling the feeding, and clumping affecting the purification effect.
The system employs components such as a screw feeder, conveying pipe, grid plate, and double-layer counterweight flap valve to achieve quantitative conveying and dispersion of potassium sulfate, reducing manual operation and preventing dust generation and agglomeration.
This improved the control precision and efficiency of potassium sulfate purification, reduced personnel contact and dust risks, prevented clumping, and enhanced production safety and equipment utilization.
Smart Images

Figure CN224585383U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of purification equipment technology, and in particular to a potassium sulfate production and purification device. Background Technology
[0002] Potassium sulfate is a colorless crystalline solid with low hygroscopicity, does not easily clump, has good physical properties, and is easy to apply, making it an excellent water-soluble potassium fertilizer. Potassium sulfate is also chemically neutral but physiologically acidic. It is a chlorine-free, high-quality, and highly efficient potassium fertilizer, especially important in the cultivation of chlorine-sensitive crops such as tobacco, grapes, sugar beets, tea trees, potatoes, flax, and various fruit trees.
[0003] Currently, potassium sulfate is purified in production by evaporation and crystallization within equipment. However, in actual production, it has been found that workers need to continuously add potassium sulfate little by little into the purification equipment, which is time-consuming and labor-intensive. Adding too much potassium sulfate can cause it to clump during purification, affecting the purification effect, reducing the quality of the finished product, and also impacting the equipment's production efficiency. Therefore, Chinese utility model patent ZL202421834494.9 was developed, disclosing a potassium sulfate purification device, including a purification... The purification machine has a discharge pipe fixedly connected to its bottom surface, a feed hopper fixedly connected to one side surface, a control panel fixedly connected to its surface, and an auxiliary device on the surface of the feed hopper. The auxiliary device includes a servo motor, which is fixedly connected to the surface of the feed hopper. A first gear is fixedly connected to the output end of the servo motor. A rotating rod is rotatably connected through the inner wall of the feed hopper. A second gear is fixedly connected to one end of the rotating rod. The first gear and the second gear mesh with each other. A baffle is rotatably connected to the arc surface of the rotating rod.
[0004] The aforementioned patent has at least the following problems: First, during the production and purification process, the potassium sulfate material is poured directly onto the feed hopper and remains on the surface of the baffle, which is not only easily contaminated by the outside world, but also easily causes personnel to accidentally touch or inhale it; Second, the baffle rotates to open the feed port, making it inconvenient to control the amount of potassium sulfate material discharged, and the discharge is relatively concentrated. Utility Model Content
[0005] This invention addresses the shortcomings of existing technologies by developing a potassium sulfate production and purification device. This invention reduces personnel contact and inhalation during the production and purification process, and allows for convenient control of the amount of potassium sulfate input, effectively improving the purification effect.
[0006] The technical solution of this utility model to solve the technical problem is as follows: a potassium sulfate production and purification device, including a purification machine, a screw feeder is provided on the top of the purification machine, the discharge port of the screw feeder is connected to the feed port on the top of the purification machine through a conveying pipe, and a grid plate is provided at the feed port of the purification machine.
[0007] As an optimization, a double-layer counterweight flap valve is installed on the conveying pipe. By setting the double-layer counterweight flap valve, the screw feeder and the purification machine can be separated. When the screw feeder conveys a certain amount of potassium sulfate material and it falls onto the valve plate, the valve plate will automatically open to discharge the material. After the material is discharged, it will reset under the action of the counterweight rod.
[0008] As an optimization, the screw feeder includes a hopper and a screw conveyor. The hopper is located at the top of the screw conveyor, and the outlet of the hopper is connected to the inlet of the screw conveyor. By setting up the hopper, potassium sulfate that needs to be purified can be held, reducing the number of manual feeding operations; by setting up the screw conveyor, potassium sulfate can be transported in a closed system, avoiding the generation of dust.
[0009] As an optimization, the screw conveyor is set horizontally. This results in high conveying efficiency and stable conveying.
[0010] As an optimization, the screw conveyor is inclined to facilitate material loading and reduce the labor intensity of workers. The screw conveyor is equipped with a support frame to ensure its stability.
[0011] As an optimization, the top of the hopper is hinged with a cover plate. By installing the cover plate, the hopper can be sealed to prevent dust generation, avoid contamination of potassium sulfate, and protect workers from accidental contact.
[0012] Compared with the prior art, the present invention has the following beneficial effects:
[0013] Potassium sulfate can be purified by setting up a purification machine; a screw feeder can temporarily store potassium sulfate and transport it to the purification machine for purification, allowing for quantitative control of the input to prevent accumulation and clumping due to excessive input, ensuring high control precision and reliable operation; a conveying pipe can be installed to ensure the sealed transport of potassium sulfate, preventing human contact with crystals or inhalation of dust; and a grid plate can both cut off falling potassium sulfate, dispersing it into the purification machine and preventing large accumulations, and intercept falling potassium sulfate, slowing down the feeding speed and preventing excessive input and clumping. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the first embodiment of the present invention.
[0015] Figure 2 This is a schematic diagram of the second embodiment of the present utility model.
[0016] In the diagram: 1. Purification machine; 2. Screw feeder; 3. Conveying pipe; 4. Grid plate; 5. Double-layer counterweight flap valve; 6. Hopper; 7. Screw conveyor; 8. Support frame; 9. Cover plate. Detailed Implementation
[0017] To clearly illustrate the technical features of this solution, the present invention will be described in detail below through specific implementation methods and in conjunction with the accompanying drawings.
[0018] Example 1
[0019] Figure 1 As one embodiment of this utility model, such as Figure 1 As shown, a potassium sulfate production and purification device includes a purification machine 1. The bottom of the purification machine 1 is provided with a discharge pipe, and the top of the purification machine 1 is provided with a screw feeder 2. The discharge port of the screw feeder 2 is connected to the feed port at the top of the purification machine 1 through a conveying pipe 3. A grid plate 4 is provided at the feed port of the purification machine 1.
[0020] Potassium sulfate can be purified by setting up a purification machine 1; potassium sulfate can be temporarily stored by setting up a screw feeder 2 and then transported to the purification machine 1 for purification. The input can be quantitatively controlled to avoid the accumulation and agglomeration of potassium sulfate after a large amount of input. The control accuracy is high and the operation is reliable; potassium sulfate can be transported in a closed system by setting up a conveying pipe 3 to prevent people from coming into contact with crystals or inhaling dust; and the grid plate 4 can cut off the falling potassium sulfate, so that the potassium sulfate is dispersed into the purification machine 1 to avoid large accumulation. It can also intercept the falling potassium sulfate, slow down the feeding speed of potassium sulfate, and prevent the accumulation and agglomeration of potassium sulfate after excessive input.
[0021] The conveying pipe 3 is equipped with a double-layer counterweight flap valve 5. By setting the double-layer counterweight flap valve 5, the screw feeder 2 and the purifier 1 can be separated. When the screw feeder 2 conveys a certain amount of potassium sulfate material and it falls onto the valve plate, the valve plate will automatically open to discharge the material. After the material is discharged, it will reset under the action of the counterweight rod.
[0022] The screw feeder 2 includes a hopper 6 and a screw conveyor 7. The hopper 6 is located on top of the screw conveyor 7, and the discharge port of the hopper 6 is connected to the inlet of the screw conveyor 7. By setting up the hopper 6, potassium sulfate that needs to be purified can be held, reducing the number of times manual feeding is required; by setting up the screw conveyor 7, potassium sulfate can be transported in a closed system, avoiding the generation of dust.
[0023] The screw conveyor 7 is horizontally positioned. It offers high conveying efficiency and stable operation, making it suitable for scenarios where the purification machine 1 and the screw feeder 2 are located on different floors or at different heights.
[0024] The top of the hopper 6 is hinged with a cover plate 9. By setting the cover plate 9, the hopper 6 can be sealed to prevent dust generation, avoid contamination of potassium sulfate, and protect workers from accidental contact.
[0025] Example 2
[0026] Figure 2 In another embodiment of this utility model, the difference from the first embodiment is that the screw conveyor 7 is inclined, which facilitates material feeding and reduces the labor intensity of the workers. The screw conveyor 7 is equipped with a support 8. By setting the support 8, the screw conveyor 7 can be supported, which is suitable for scenarios where the purification machine 1 and the screw feeder 2 are on the same floor or at the same height.
[0027] In operation, the operator opens the cover plate 9 using the handle, pours the potassium sulfate material into the hopper 6, and then closes the cover plate 9. The operator can preset the single-pass volume and interval of potassium sulfate on the controller of the screw conveyor 7, and then start the screw conveyor 7. The screw conveyor 7 transports the potassium sulfate into the conveying pipe 3, where it falls onto the double-layer counterweight flap valve 5. When the weight of the potassium sulfate exceeds the counterweight, the valve plate on the double-layer counterweight flap valve 5 automatically opens to discharge the material. After discharge, the valve plate resets under the action of the counterweight, closing the conveying pipe 3. After the potassium sulfate falls through the double-layer counterweight flap valve 5 onto the grid plate 4, large pieces of potassium sulfate are cut into smaller pieces by the cross-arranged flat steel or crossbars on the grid plate 4, and finally enter the purification machine 1 for purification. This invention reduces personnel contact and inhalation during the purification process and allows for convenient control of the potassium sulfate input, effectively improving the purification effect.
[0028] The descriptions of the orientation or relative positional relationships of the structure in this utility model, such as "center", "up", "down", "left", "right", "vertical", "horizontal", "inner", and "outer", are based on the orientation or positional relationships shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the structure referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
Claims
1. A device for the production and purification of potassium sulfate, comprising a purifier (1), characterized by the fact that: The top of the purification machine (1) is equipped with a screw feeder (2), and the outlet of the screw feeder (2) is connected to the inlet of the top of the purification machine (1) through a conveying pipe (3). A grid plate (4) is provided at the inlet of the purification machine (1).
2. The apparatus for producing and purifying potassium sulfate according to claim 1, characterized by: The conveying pipe (3) is equipped with a double-layer counterweight flap valve (5).
3. The apparatus for producing and purifying potassium sulfate according to claim 1, characterized by: The screw feeder (2) includes a hopper (6) and a screw conveyor (7). The hopper (6) is located on top of the screw conveyor (7), and the outlet of the hopper (6) is connected to the inlet of the screw conveyor (7).
4. The apparatus for producing and purifying potassium sulfate according to claim 3, characterized by: The screw conveyor (7) is set horizontally.
5. The apparatus for producing and purifying potassium sulfate according to claim 3, characterized by: The screw conveyor (7) is inclined and a support (8) is provided on the screw conveyor (7).
6. The apparatus for producing and purifying potassium sulfate according to claim 4 or 5, characterized by: The top of the hopper (6) is hinged with a cover plate (9).