A pesticide effervescent tablet production filtering and impurity removing device
By designing a filtration and impurity removal device with a vibration motor-driven impurity removal tank and scraper cleaning assembly, the problem of material clogging the screen was solved, achieving efficient and continuous filtration in the production of pesticide effervescent tablets, reducing the labor intensity of workers and the impact on production.
Patent Information
- Application Number
- CN202522019871.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-19
- Publication Date
- 2026-08-25
- Estimated Expiration
- 2035-09-19
AI Technical Summary
In the current production process of pesticide effervescent tablets, materials with a certain degree of viscosity or that are prone to agglomeration due to electrostatic adsorption can easily stick to or clog the screen, resulting in a decrease in filtration efficiency and affecting the continuity and efficiency of production.
A filtration and impurity removal device was designed, which includes a vibratory motor-driven impurity removal tank, combined with a graded filter screen and a scraper cleaning assembly. Through vibration-graded filtration and rotary scraping, the device avoids material clogging of the filter screen holes and achieves automated cleaning.
This effectively prevents material blockage, reduces the labor intensity of workers, ensures the continuity and efficiency of production, and reduces downtime.
Smart Images

Figure CN224673152U_ABST
Abstract
Description
Technical Field
[0001] This utility model provides a filtration and impurity removal device for the production of pesticide effervescent tablets, belonging to the field of pesticide production and processing technology. Background Technology
[0002] Molluscicide and its ethanolamine salt are widely used molluscicides, often formulated as wettable powders, granules, or effervescent tablets. Effervescent tablets are increasingly popular among pesticide formulations due to their ease of use, rapid disintegration, and fast efficacy. Their production process typically includes mixing, sieving, granulation, and tableting of raw materials. After mixing, in order to ensure the quality of the final product and the smooth progress of the tableting process, the mixture must be filtered to remove any lumps, agglomerates, or accidentally mixed impurities such as fibers and packaging debris.
[0003] Currently, the most commonly used filtration and impurity removal equipment in the industry is the ordinary vibrating screen. This type of equipment has many shortcomings in practical applications: pesticide raw materials, especially mixtures with added adjuvants, may have a certain degree of viscosity or be prone to agglomeration due to electrostatic adsorption. During vibration, these materials easily clog or block the screen mesh, leading to a sharp drop in filtration efficiency, or even complete failure. Once the screen becomes clogged, the production line must be stopped, the equipment disassembled, and manually cleaned. This process is not only time-consuming and labor-intensive, increasing the workload of workers, but the frequent start-ups and shutdowns also seriously affect the continuity of production and overall efficiency. Based on this, this utility model provides a filtration and impurity removal device for the production of pesticide effervescent tablets. Utility Model Content
[0004] The technical problem solved by this utility model is that when filtering and removing impurities from materials with a certain degree of viscosity or that are prone to agglomeration due to electrostatic adsorption, the mesh of the screen is easily clogged or blocked, often requiring the machine to be stopped for manual cleaning. This is not only time-consuming and labor-intensive, increasing the labor intensity of workers, but also seriously affecting the continuity of production and overall efficiency.
[0005] To solve the technical problem, the technical solution provided by this utility model is: a filtration and impurity removal device for producing pesticide effervescent tablets, including a base, and further comprising:
[0006] A waste removal tank is elastically connected to the top of the base, and a vibration motor is provided at the bottom of the waste removal tank;
[0007] Several filter screens are fixedly arranged from top to bottom between the inner walls of the impurity removal tank, and a sliding plate is provided between the inner walls of the impurity removal tank, which is located below the lowest filter screen and is inclined.
[0008] A scraper cleaning assembly for scraping off impurities attached to the top of a filter screen includes a rotating rod rotatably connected to the filter screen, and a scraper that fits against the top of the filter screen is provided on one side of the rod.
[0009] Furthermore, the vibration motor is located above the base, and the bottom circumference of the impurity removal tank is provided with several support springs that are fixedly connected to the top of the base.
[0010] Furthermore, the scraper cleaning assembly also includes a motor fixedly mounted at the top center of the base, the output end of which is inserted into the impurity removal tank and fixedly connected to the top of the rotating rod.
[0011] Furthermore, the side of the scraper is inclined inward, and the inclination angle is 10°-30°.
[0012] Furthermore, the center of the filter plate is rotatably connected to the rotating rod via a sealed bearing, and the aperture of the upper filter plate is larger than that of the lower filter plate.
[0013] Furthermore, a feed hopper is provided on one side of the top of the impurity removal tank, and a discharge port one is provided on the side wall of the impurity removal tank, which is located on the top side of the filter screen plate. A switch valve is provided on the discharge port one, and a discharge port two is provided on the side wall of the impurity removal tank, which is located on the top side of the inclined lower end of the sliding plate.
[0014] The beneficial effects of this utility model are:
[0015] This invention effectively prevents materials from clogging the filter screen mesh by combining vibration and rotary scraping, as well as the ingenious design of graded filtration and scraping discharge. It eliminates the need for manual cleaning of impurities remaining on the top of the filter screen, saving time and effort, reducing the labor intensity of workers, and thus avoiding affecting the continuity of production and overall efficiency. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the structure of the present invention. Figure 1 .
[0017] Figure 2 This is a schematic diagram of the structure of the present invention. Figure 2 .
[0018] Figure 3 This is a partial structural diagram of the scraper cleaning assembly of this utility model.
[0019] Figure 4 This is a plan view of the present invention.
[0020] 1. Base; 2. Impurity removal tank; 3. Vibration motor; 4. Filter screen; 5. Scraper cleaning assembly; 6. Rotating rod; 7. Scraper; 8. Support spring; 9. Motor; 10. Sliding plate; 11. Feed hopper; 12. Discharge port one; 13. Discharge port two. Detailed Implementation
[0021] The directional terms such as up, down, left, right, front, back, front, back, top, and bottom mentioned or possibly mentioned in this specification are defined relative to their structure and are relative concepts. Therefore, they may vary depending on their location and usage; thus, these or other directional terms should not be interpreted as restrictive terms.
[0022] The singular forms “a,” “the,” and “the” used in this specification are intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the term “and / or” as used herein refers to and includes one or more of the associated listed items, any or all possible combinations thereof.
[0023] To make the technical problems to be solved, the technical solutions, and the beneficial effects of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the embodiments described herein are merely illustrative and not intended to limit the scope of this application.
[0024] According to the appendix Figure 1 , 2 As shown: This utility model provides a filtration and impurity removal device for the production of pesticide effervescent tablets: it includes a base 1, which can be made of Q235 carbon steel and is treated with anti-corrosion to ensure sufficient load-bearing capacity and stability; it also includes an impurity removal tank 2 elastically connected to the top of the base 1; a vibration motor 3 is provided at the bottom of the impurity removal tank 2, which is located above the base 1; several support springs 8 are provided around the bottom circumference of the impurity removal tank 2 and are fixedly connected to the top of the base 1; the support springs 8 are preferably composite rubber springs with good damping performance; the impurity removal tank 2 is made of 304 stainless steel, and both the inner and outer surfaces are polished to meet the hygiene requirements of pesticide production and prevent material from sticking to the wall; specifically, the excitation force generated by the vibration motor can be efficiently and evenly transmitted to the impurity removal tank, while the support springs isolate vibration to avoid excessive impact of vibration on the base and the ground, thus ensuring the stability of the equipment operation.
[0025] As per the instruction manual Figure 2 , 4As shown: Several filter screens 4 are fixedly arranged from top to bottom between the inner walls of the impurity removal tank 2. The aperture of the upper filter screen 4 is larger than that of the lower filter screen 4. A sliding plate 10 is provided between the inner walls of the impurity removal tank 2, which is located below the lowermost filter screen 4 and is inclined. A feed hopper 11 is provided on one side of the top of the impurity removal tank 2. A discharge port 12 is provided on the side wall of the impurity removal tank 2, located on the top side of the filter screen 4. A switch valve is provided on the discharge port 12. A discharge port 23 is provided on the side wall of the impurity removal tank 2, located on the top side of the inclined lower end of the sliding plate 10. Specifically, the design of the filter screen 4 with decreasing aperture from top to bottom realizes the graded filtration of materials, first removing large particles of impurities and then removing small particles of impurities. The layout clearly defines the flow direction of materials: raw materials enter from the feed hopper 11, impurities retained on the top of the filter screen 4 are discharged from the discharge port 12, and qualified finished products are discharged from the discharge port 23. The structure is clear.
[0026] As per the instruction manual Figure 3 , 4 As shown: The scraper cleaning assembly 5, used to scrape off impurities adhering to the top of the filter screen plate 4, includes a rotating rod 6 rotatably connected to the filter screen plate 4. The center of the filter screen plate 4 is rotatably connected to the rotating rod 6 via a sealed bearing. The sealed bearing prevents material dust from entering the bearing and ensures smooth rotation of the rotating rod 6. A scraper 7 is provided on one side of the rotating rod 6, which is in contact with the top of the filter screen plate 4. The scraper 7 is made of wear-resistant and elastic polyurethane material, and its bottom edge maintains slight contact or a very small gap with the screen surface of the filter screen plate 4. The scraper cleaning assembly 5 also includes a fixedly installed base 1 on the top. The motor 9 is inserted into the impurity removal tank 2 and fixedly connected to the top of the rotating rod 6. It is preferably a low-speed, high-torque geared motor. The motor 9 provides an independent and stable power source for the scraper cleaning assembly, ensuring that the scraper can rotate continuously at a set speed for uninterrupted cleaning. The scraper 7 is inclined inward on its side with an inclination angle of 10°-30°. When the scraper 7 rotates, it can not only scrape off the material on the surface of the filter screen plate 4, but also generate a radial force that pushes the impurities toward the inner wall of the impurity removal tank 2, which helps the impurities to be discharged from the discharge port 12.
[0027] The control method of this utility model is through a controller. The controller adopts existing known mature technology, which is not shown in the figure and will not be described in detail here. The control circuit of the controller can be implemented by those skilled in the art through simple programming. The power supply is also common knowledge in the field. Furthermore, this utility model is mainly used to protect mechanical devices, so the control method and circuit connection will not be explained in detail here.
[0028] The principle and operation process of this utility model
[0029] Preparation phase: Check that all parts of the equipment are intact and close all discharge port valves 12;
[0030] Start the equipment: Connect the power supply and start the vibration motor 3. With the support spring 8, the impurity removal tank 2 will begin to vibrate at high frequency.
[0031] Feeding and filtration grading: The pesticide mixture to be treated is continuously or in batches fed into the impurity removal tank 2 through the feed hopper 11. The material first falls onto the uppermost filter screen plate 4. Under the action of the vibrating motor 3, the material is thrown up and loosened on the filter screen plate 4. Particles smaller than the aperture of the upper filter screen plate 4 pass through smoothly and fall to the next layer. Impurities and agglomerates larger than the aperture of the filter screen plate 4 are left on the screen surface. The material passes through the filter screen plates 4 with decreasing aperture layer by layer to achieve fine grading filtration.
[0032] Finished product discharge: The qualified material that finally passes through all the filter screens 4 falls onto the inclined sliding plate 10. Under the action of gravity and continuous vibration, the finished material will slide smoothly along the sliding plate 10 and be discharged from the discharge port 13.
[0033] Impurity discharge: Open the switch valve and start the motor 9 to drive the rotating rod 6 to rotate, which in turn drives all the scrapers 7 to rotate slowly at a speed of about 5-15 revolutions per minute. The rotating scrapers 7 continuously scrape the screen surface of the filter screen plate 4, on the one hand peeling off the material that may adhere to or block the mesh, and on the other hand, using its inclined side to push the impurities on the screen to the tank wall, which helps the impurities to be discharged from the discharge port 12, so as to prevent materials with a certain degree of stickiness or easy to agglomerate due to electrostatic adsorption from easily sticking or blocking the mesh of the filter screen plate 4 during the filtration and impurity removal process.
[0034] In summary, this utility model effectively avoids material clogging of the filter screen mesh by organically combining vibration and rotary scraping, as well as the ingenious design of graded filtration and scraping discharge. It eliminates the need for manual cleaning of impurities retained on the top of the filter screen 4, saving time and effort, reducing the labor intensity of workers, and thus avoiding affecting the continuity of production and overall efficiency.
[0035] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.
Claims
1. A filtration and impurity removal device for producing pesticide effervescent tablets, comprising a base (1), characterized in that: Also includes: A cleaning tank (2) is elastically connected to the top of the base (1), and a vibration motor (3) is provided at the bottom of the cleaning tank (2). Several filter screens (4) are fixedly arranged from top to bottom between the inner walls of the impurity removal tank (2). A sliding plate (10) is provided between the inner walls of the impurity removal tank (2) and is placed below the lowest filter screen (4) and is inclined. The scraper cleaning assembly (5) for scraping off impurities attached to the top of the filter screen (4) includes a rotating rod (6) rotatably connected to the filter screen (4), and a scraper (7) attached to the top of the filter screen (4) is provided on one side of the rod (6).
2. The pesticide effervescent tablet production filtration and impurity removal device according to claim 1, characterized in that: The vibration motor (3) is located above the base (1), and the bottom circumference of the impurity removal tank (2) is provided with several support springs (8) that are fixedly connected to the top of the base (1).
3. The pesticide effervescent tablet production filtration and impurity removal device according to claim 1, characterized in that: The scraper cleaning assembly (5) also includes a motor (9) fixedly installed at the top center of the base (1), the output end of the motor (9) being inserted into the impurity removal tank (2) and fixedly connected to the top of the rotating rod (6).
4. The pesticide effervescent tablet production filtration and impurity removal device according to claim 1, characterized in that: The scraper (7) is inclined inward on its side.
5. The pesticide effervescent tablet production filtration and impurity removal device according to claim 1, characterized in that: The center of the filter plate (4) is rotatably connected to the rotating rod (6) through a sealed bearing, and the aperture of the upper filter plate (4) is larger than that of the lower filter plate (4).
6. The pesticide effervescent tablet production filtration and impurity removal device according to claim 1, characterized in that: The impurity removal tank (2) has a feed hopper (11) on one side of the top. The side wall of the impurity removal tank (2) has a discharge port one (12) located on one side of the top of the filter screen plate (4). The discharge port one (12) has a switch valve. The side wall of the impurity removal tank (2) has a discharge port two (13) located on one side of the top of the lower end of the sliding plate (10).