A device for drying and pulverizing fipronil filter cake

Abstract

This utility model relates to a fipronil filter cake drying and pulverizing device applied in the field of processing equipment. It includes a main body, a drying chamber fixedly connected to the upper front side of the main body, a pre-pulverizing chamber fixedly connected to the upper middle part of the main body, two horizontal plates fixedly connected to the upper end of the drying chamber, and a heat pump fixedly connected to the upper end of the horizontal plates. A fixed side push plate is fixedly connected to the left inner wall of the pre-pulverizing chamber, and several protruding particle blocks are fixedly connected to the right end of the fixed side push plate. An electrically conductive conveyor belt is fixedly connected to the lower inner wall of the main body. In the above-mentioned fipronil filter cake drying and pulverizing device, in the pre-pulverizing chamber, a hydraulic push rod pushes the first side push plate, driving a vibrator, a movable side plate, and a protruding conical rod to initially pulverize the filter cake. A spring adjusts the pressure, and a side guide limit rod and a horizontal push bar guide and limit the movement, making the pre-pulverizing process stable and efficient, quickly crushing the filter cake to a suitable particle size, and improving the overall processing efficiency.

Description

Technical Field

[0001] This utility model relates to a fipronil filter cake drying and pulverizing device, and in particular to a fipronil filter cake drying and pulverizing device applied in the field of processing equipment. Background Technology

[0002] Fipronil is a flupyrazole insecticide. In its chemical synthesis or purification process (such as reaction crystallization, precipitation, etc.), a mixed system containing fipronil solid particles and liquid (solvent, mother liquor, etc.) is generated. After the mixed system is separated by filtration operations (such as plate and frame filtration, centrifugal filtration, etc.), the fipronil solid particles are trapped and accumulated on the filter medium, forming a solid filter cake with a certain moisture content and shape, namely fipronil filter cake.

[0003] Chinese patent CN218689849U discloses a crushing device for drying fipronil filter cake. It includes a feeding pipe connected to a feed pipe conveyed by airflow. A pair of crushing rollers, rotating relative to each other, are installed inside the feeding pipe. A support pipe is installed inside each crushing roller, and air holes are formed in the section of the support pipe inside the crushing rollers. The fixed end of the support pipe is connected to an external hot gas supply device. The movable end of the crushing rollers is in contact with the inner wall of the feeding pipe. A scraper is installed on the inner wall of the feeding pipe, arranged parallel to the crushing rollers, with a gap between the blade of the scraper and the outer wall of the crushing rollers. This invention effectively prevents fipronil filter cake from adhering to the surface of the crushing rollers.

[0004] Traditional crushing equipment is often single-function, capable of crushing only in one stage. For materials like fipronil filter cake, which have unique hardness and properties, single-stage crushing is insufficient to achieve the desired particle size. Repeated single-stage crushing not only prolongs the production cycle and reduces production efficiency but also increases equipment wear and maintenance costs. Utility Model Content

[0005] The technical problem this invention aims to solve in response to the aforementioned existing technology is that traditional crushing equipment often has a single function, possessing only single-stage crushing capability. For materials like fipronil filter cake, which have unique hardness and characteristics, single-stage crushing is insufficient to achieve the desired particle size. Furthermore, employing multiple single-stage crushing operations not only prolongs the production cycle and reduces production efficiency but also increases equipment wear and maintenance costs.

[0006] To address the aforementioned problems, this utility model provides a fipronil filter cake drying and pulverizing device, comprising a main body, a drying chamber fixedly connected to the upper front side of the main body, a pre-pulverizing chamber fixedly connected to the upper middle part of the main body, two horizontal plates fixedly connected to the upper end of the drying chamber, a heat pump fixedly connected to the upper end of the horizontal plates, a fixed side push plate fixedly connected to the left inner wall of the pre-pulverizing chamber, several protruding particle blocks fixedly connected to the right end of the fixed side push plate, an electric conveyor belt fixedly connected to the lower inner wall of the main body, a first side push plate installed on the right inner wall of the pre-pulverizing chamber, several vibrators fixedly connected to the end of the first side push plate near the fixed side push plate, a movable side plate fixedly connected to the end of the vibrators away from the first side push plate, several protruding conical rods fixedly connected to the end of the movable side plate near the fixed side push plate, and a hydraulic push rod fixedly connected to the right side of the pre-pulverizing chamber.

[0007] In the above-mentioned fipronil filter cake drying and pulverizing device, in the pre-pulverizing chamber of this scheme, the hydraulic push rod pushes the first side horizontal push plate, which drives the vibrator, movable side plate and outward conical rod to perform preliminary pulverization of the filter cake. The pressure is adjusted by the spring, and the side guide limit rod and the horizontal push bar guide and limit the movement, so that the pre-pulverization process is stable and efficient, and can quickly crush the filter cake to a suitable particle size, thereby improving the overall processing efficiency.

[0008] As a further improvement of this application, a discharge frame is fixedly connected to the upper rear side of the equipment body, and multiple springs are fixedly connected between the first side push plate and the movable side plate.

[0009] As a further improvement of this application, hot air outlet pipes are symmetrically fixedly connected to both sides of the lower end of the horizontal plate, and the hot air outlet pipes are connected to the output end of the heat pump.

[0010] As a further improvement of this application, the output end of the hydraulic push rod is connected to the first side horizontal push plate, and side guide limit rods are fixedly connected to the upper sides of the left and right inner walls of the pre-crushing chamber.

[0011] As another improvement of this application, the left and right ends of the side guide limit rod are symmetrically provided with horizontal push bars, and the horizontal push bar on the right side and the first side horizontal push plate are fixedly connected to each other.

[0012] As a further improvement to this application, the horizontal push bar on the right side and the corresponding side guide limit bar are slidably connected, and the lower end of the discharge frame is fixedly connected to the final crushing chamber.

[0013] As a further improvement to this application, the front and rear inner walls of the final crushing chamber are symmetrically provided with crushing inner blade shafts, and the two crushing inner blade shafts are meshed together.

[0014] In summary, this solution utilizes a heat pump to generate heat energy, which is conducted through a horizontal plate and transported via hot air outlet pipes to dry the fipronil filter cake in the drying chamber. This removes moisture and prevents the filter cake from sticking together during subsequent pulverization, laying a good foundation for the subsequent pulverization process and ensuring pulverization effect and finished product quality. In the pre-pulverization chamber, a hydraulic pusher pushes the first side horizontal push plate, which drives the vibrator, movable side plate, and outwardly convex conical rod to initially pulverize the filter cake. Spring-adjusted pressure and side guide limit rods and horizontal push bar guide and limit the movement, making the pre-pulverization process stable and efficient. It can quickly crush the filter cake to a suitable particle size, improving overall processing efficiency. In the final pulverization chamber, symmetrically arranged pulverizing inner blade shafts mesh and rotate to finely pulverize the pre-pulverized filter cake, ensuring that the final product meets the required particle size requirements and satisfies the particle size requirements of fipronil products in different application scenarios. Attached Figure Description

[0015] Figure 1 This is a diagram of the device body according to the first embodiment of this application;

[0016] Figure 2 This is an exploded view of the device body according to the first and second embodiments of this application;

[0017] Figure 3 This is a diagram of the drying chamber according to the first embodiment of this application;

[0018] Figure 4 This is an enlarged view of the first side push plate in the first and second embodiments of this application;

[0019] Figure 5 The first and second embodiments of this application Figure 4 Enlarged view of a partial section of the first side push plate;

[0020] Figure 6 This is a diagram showing the pushing state of the first side horizontal push plate in the first and second embodiments of this application.

[0021] Figure 7 This is a structural diagram of the discharge frame according to the first embodiment of this application.

[0022] Explanation of the labels in the diagram:

[0023] 1. Equipment body; 2. Drying chamber; 3. Pre-crushing chamber; 4. Horizontal plate; 5. Heat pump; 6. Hot air outlet pipe; 7. Electrically conductive conveyor belt; 8. First side horizontal push plate; 9. Vibrator; 11. Movable side plate; 12. Outwardly protruding conical rod; 13. Horizontal push bar; 14. Side guide limit rod; 15. Final crushing chamber; 16. Inner crushing cutter shaft; 17. Fixed side horizontal push plate; 18. Outwardly protruding particle block; 19. Spring; 20. Hydraulic push rod; 21. Discharge frame. Detailed Implementation

[0024] The two embodiments of this application will be described in detail below with reference to the accompanying drawings.

[0025] First implementation method:

[0026] Figures 2-7 A device for drying and pulverizing fipronil filter cake is shown, comprising a device body 1, a drying chamber 2 fixedly connected to the upper front side of the device body 1, a pre-pulverizing chamber 3 fixedly connected to the upper middle part of the device body 1, two horizontal plates 4 fixedly connected to the upper end of the drying chamber 2, a heat pump 5 fixedly connected to the upper end of the horizontal plates 4, a fixed side push plate 17 fixedly connected to the left inner wall of the pre-pulverizing chamber 3, a plurality of protruding particle blocks 18 fixedly connected to the right end of the fixed side push plate 17, an electric conveyor belt 7 fixedly connected to the lower inner wall of the device body 1, a first side push plate 8 installed on the right inner wall of the pre-pulverizing chamber 3, a plurality of vibrators 9 fixedly connected to the end of the first side push plate 8 near the fixed side push plate 17, a movable side plate 11 fixedly connected to the end of the vibrator 9 away from the first side push plate 8, a plurality of protruding conical rods 12 fixedly connected to the end of the movable side plate 11 near the fixed side push plate 17, and a hydraulic push rod 20 fixedly connected to the right side of the pre-pulverizing chamber 3.

[0027] Figures 2-7 The upper rear side of the device body 1 is fixedly connected to a discharge frame 21. Multiple springs 19 are fixedly connected between the first side push plate 8 and the movable side plate 11. Hot air outlet pipes 6 are symmetrically fixedly connected to both sides of the lower end of the horizontal plate 4. The hot air outlet pipes 6 are connected to the output end of the heat pump 5. The output end of the hydraulic push rod 20 is connected to the first side push plate 8. The lower end of the discharge frame 21 is fixedly connected to a final crushing chamber 15. The front and rear inner walls of the final crushing chamber 15 are symmetrically provided with crushing inner blade shafts 16. The two crushing inner blade shafts 16 are meshed together.

[0028] Figures 1-7The diagram shows that after the fipronil filter cake is formed, it is carried and conveyed by an electrically conductive conveyor belt 7, passing sequentially through a drying chamber 2, a pre-crushing chamber 3, and a discharge frame 21. In the drying chamber 2, a heat pump 5 generates heat, which is conducted through a horizontal plate 4 and then delivered as hot air through a hot air outlet pipe 6 to the drying chamber 2 to dry the fipronil filter cake, removing moisture and preventing adhesion during subsequent crushing. When the dried filter cake enters the pre-crushing chamber 3, the hydraulic push rod 20 on the right side of the pre-crushing chamber 3 is activated, pushing the first side push plate 8 to the left. The first side push plate 8 drives the vibrator 9 and the movable side plate 11 to move together. The protruding conical rod 12 on the movable side plate 11 gradually approaches the filter cake. During this process, the spring 19 acts as a buffer and adjusts the pressure, ensuring that the protruding conical rod 12 contacts the filter cake with appropriate force. Simultaneously, the vibrator 9 starts working, generating vibration, causing the protruding conical rod 12 to initially crush the filter cake. The pre-crushed filter cake falls through the discharge frame 21 into the final crushing chamber. The final crushing chamber 15, with its two symmetrically arranged inner crushing blades 16 on its front and rear inner walls, further finely crushes the filter cake through mutual meshing and rotation until the required particle size is achieved. This completes the entire process of drying and crushing the fipronil filter cake. This solution utilizes heat pump 5 to generate heat energy, which is conducted through horizontal plate 4 and transported through hot air outlet pipe 6 to dry the fipronil filter cake in drying chamber 2, removing moisture and preventing the filter cake from sticking together during subsequent crushing. This lays a good foundation for subsequent crushing processes, ensuring crushing effect and finished product quality. In the pre-crushing chamber 3, hydraulic push rod 20 pushes the first side horizontal push plate 8, driving vibrator 9, movable side plate 11, and outwardly protruding conical rod 12 to initially crush the filter cake. Spring 19 adjusts the pressure. In the final crushing chamber 15, the symmetrically arranged inner crushing blades 16 mesh and rotate to finely crush the pre-crushed filter cake, ensuring that the final product meets the required particle size and satisfies the particle size requirements of fipronil products in different application scenarios.

[0029] Second implementation method:

[0030] Figure 2 , Figures 4-6 This invention discloses a device for drying and pulverizing fipronil filter cake. Side guide rods 14 are fixedly connected to the upper sides of the left and right inner walls of the pre-pulverizing chamber 3. Horizontal push rods 13 are symmetrically arranged at both ends of the side guide rods 14. The horizontal push rod 13 on the right side is fixedly connected to the first side push plate 8, and the horizontal push rod 13 on the right side is slidably connected to the corresponding side guide rod 14. The side guide rods 14 on the upper sides of the left and right inner walls of the pre-pulverizing chamber 3, in conjunction with the horizontal push rods 13, provide guidance and limitation for the movement of the first side push plate 8, ensuring its smooth movement. The guidance and limitation of the side guide rods 14 and the horizontal push rods 13 make the pre-pulverizing process stable and efficient, quickly crushing the filter cake to a suitable particle size and improving overall processing efficiency.

[0031] In light of current practical needs, the above-described embodiments adopted in this application are not limited to these. Any changes made within the scope of knowledge possessed by those skilled in the art without departing from the concept of this application still fall within the protection scope of this utility model.

Claims

1. A device for drying and pulverizing fipronil filter cake, characterized in that: The equipment includes a main body (1), a drying chamber (2) fixedly connected to the upper front side of the main body (1), a pre-crushing chamber (3) fixedly connected to the upper middle part of the main body (1), two horizontal plates (4) fixedly connected to the upper end of the drying chamber (2), a heat pump (5) fixedly connected to the upper end of the horizontal plates (4), a fixed side push plate (17) fixedly connected to the left inner wall of the pre-crushing chamber (3), and several protruding particle blocks (18) fixedly connected to the right end of the fixed side push plate (17). The lower inner wall of the main body (1) is fixedly connected to... An electrically connected conveyor belt (7) is fixedly connected to the pre-crushing chamber (3). A first side push plate (8) is installed on the right inner wall of the pre-crushing chamber (3). A plurality of vibrators (9) are fixedly connected to the end of the first side push plate (8) near the fixed side push plate (17). A movable side plate (11) is fixedly connected to the end of the vibrator (9) away from the first side push plate (8). A plurality of outwardly protruding conical rods (12) are fixedly connected to the end of the movable side plate (11) near the fixed side push plate (17). A hydraulic push rod (20) is fixedly connected to the right side of the pre-crushing chamber (3).

2. The fipronil filter cake drying and pulverizing device according to claim 1, characterized in that: A discharge frame (21) is fixedly connected to the upper rear side of the equipment body (1), and multiple springs (19) are fixedly connected between the first side push plate (8) and the movable side plate (11).

3. The fipronil filter cake drying and pulverizing device according to claim 1, characterized in that: Hot air outlet pipes (6) are symmetrically fixedly connected to both sides of the lower end of the horizontal plate (4), and the hot air outlet pipes (6) and the output end of the heat pump (5) are connected to each other.

4. The fipronil filter cake drying and pulverizing device according to claim 2, characterized in that: The output end of the hydraulic push rod (20) is connected to the first side push plate (8), and the upper side of the left and right inner walls of the pre-crushing chamber (3) is fixedly connected with a side guide limit rod (14).

5. The fipronil filter cake drying and pulverizing device according to claim 4, characterized in that: The left and right ends of the side guide limit rod (14) are symmetrically provided with horizontal push rods (13), and the horizontal push rod (13) on the right side and the first side horizontal push plate (8) are fixedly connected to each other.

6. The fipronil filter cake drying and pulverizing device according to claim 5, characterized in that: The horizontal push bar (13) located on the right side and the corresponding side guide limit bar (14) are slidably connected, and the lower end of the discharge frame (21) is fixedly connected to the final crushing chamber (15).

7. The fipronil filter cake drying and pulverizing apparatus according to claim 6, characterized in that: The front and rear inner walls of the final crushing chamber (15) are symmetrically provided with crushing inner blade shafts (16), and the two crushing inner blade shafts (16) are meshed and connected.

Images