Filtering device of horizontal sand mill

Abstract

The utility model belongs to the technical field of medium filtering, and particularly relates to a filtering device of a horizontal sand mill, which comprises a material guiding bin, an operation bin is fixedly connected to the bottom end of the material guiding bin, a material discharging bin is fixedly connected to the bottom end of the operation bin, and a main filtering net and a standby filtering net are fixedly connected to the inner wall of the operation bin. A partition plate is fixedly connected between the main filter screen and the standby filter screen, a switching plate is arranged above the partition plate, a back-flushing cleaning seat is arranged in the material guiding bin, the top end of the back-flushing cleaning seat is fixedly connected with a plugging frame, and the top end of the back-flushing cleaning seat is fixedly connected with a flushing nozzle; through the cooperation of the switching plate, the backwashing cleaning seat and other components, the filter screen used for filtering can be switched and the blocked screen holes can be cleaned after the screen holes are blocked along with the proceeding of the filtering operation, so that the filtering operation can be continuously carried out, and the purpose of improving the filtering efficiency is achieved.

Description

Technical Field

[0001] This utility model belongs to the field of media filtration technology, specifically relating to a filtration device for a horizontal sand mill. Background Technology

[0002] Horizontal sand mills are widely used grinding equipment in industries such as coatings, inks, pigments, and cosmetics. They are equipped with internal filtration devices to separate the grinding media from the material being ground, ensuring product quality and protecting downstream components. However, in practice, as filtration continues, the filter screen gradually accumulates blocked grinding media and impurities, clogging the pores and reducing filtration efficiency. At this point, workers need to clean the filter screen. However, the cleaning process is not only complex but also prevents further filtration, leading to decreased filtration efficiency. Utility Model Content

[0003] This utility model provides a filtration device for a horizontal sand mill, which has the feature of being able to switch the filter screen used when the filter screen holes become clogged and to clean the clogged filter screen.

[0004] This utility model provides the following technical solution: It includes a feeding bin, a working bin fixedly connected to the bottom of the feeding bin, a discharging bin fixedly connected to the bottom of the working bin, a main filter screen and a spare filter screen fixedly connected to the inner wall of the working bin, a partition plate fixedly connected between the main filter screen and the spare filter screen, a switching plate above the partition plate, a backwash cleaning seat inside the feeding bin, a sealing frame fixedly connected to the top of the backwash cleaning seat, a flushing nozzle fixedly connected to the top of the backwash cleaning seat, a driven rod fixedly connected to one side of the backwash cleaning seat, a driving bin fixedly connected to the outer wall of the working bin, a connecting block slidably connected to the inner side of the driving bin, and the connecting block fixedly connected to the bottom of the driven rod.

[0005] The outer wall of the working chamber is provided with a guide groove, and the driven rod is slidably connected to the inside of the feeding chamber through the guide groove.

[0006] The outer wall of the working chamber is provided with several drainage holes and several waste discharge ports. The drainage holes are located above the backwash cleaning seat, and the waste discharge ports are located above the main filter screen and the spare filter screen.

[0007] The main filter screen is fixedly connected to a rotating seat at its top, and the switching plate is rotatably connected to the outside of the rotating seat.

[0008] A water supply pipe is fixedly connected to one side of the driven rod, and the water supply pipe is connected to the backwash cleaning seat and the flushing nozzle through the driven rod.

[0009] The sealing frame is fixedly connected to a rubber pad at its top, the rubber pad is located below the partition plate, and the rubber pad is in close contact with the partition plate.

[0010] The drive compartment is rotatably connected to a lead screw, which is screwed into the connecting block.

[0011] The beneficial effects of this utility model are: through the cooperation of components such as the switching plate and the backwash cleaning seat, when the screen holes become clogged during the filtration process, the filter screen used for filtration can be switched and the clogged screen holes can be cleaned, so that the filtration process can continue and the filtration efficiency can be improved.

[0012] The parts of the device not covered herein are the same as or can be implemented using existing technologies. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0014] Figure 2 This is a cross-sectional structural diagram of the present invention;

[0015] Figure 3 This is a cross-sectional structural diagram of the present invention;

[0016] Figure 4 This is a schematic diagram showing the state of the present invention in use;

[0017] Figure 5 for Figure 1 Enlarged view of point A in the middle;

[0018] Figure 6 for Figure 3 Enlarged diagram of point B in the middle.

[0019] In the diagram: 1. Feeding bin; 11. Working bin; 12. Discharge bin; 13. Guide trough; 14. Drain hole; 15. Impurity discharge port; 2. Main filter screen; 21. Spare filter screen; 22. Divider plate; 23. Switching plate; 24. Rotating seat; 3. Backwash cleaning seat; 31. Sealing frame; 32. Water spray nozzle; 33. Driven rod; 34. Water pipe; 35. Rubber pad; 4. Drive chamber; 41. Linking block; 42. Transmission screw. Detailed Implementation

[0020] Please see Figures 1-6The present invention provides the following technical solution: it includes a feeding bin 1, a working bin 11 fixedly connected to the bottom of the feeding bin 1, a discharging bin 12 fixedly connected to the bottom of the working bin 11, a main filter screen 2 and a spare filter screen 21 fixedly connected to the inner wall of the working bin 11, a partition plate 22 fixedly connected between the main filter screen 2 and the spare filter screen 21, a switching plate 23 provided above the partition plate 22, a backwash cleaning seat 3 provided inside the feeding bin 1, a sealing frame 31 fixedly connected to the top of the backwash cleaning seat 3, a flushing nozzle 32 fixedly connected to the top of the backwash cleaning seat 3, a driven rod 33 fixedly connected to one side of the backwash cleaning seat 3, a driving bin 4 fixedly connected to the outer wall of the working bin 11, a connecting block 41 slidably connected to the inner side of the driving bin 4, and the connecting block 41 fixedly connected to the bottom of the driven rod 33.

[0021] In this implementation scheme: the feeding bin 1 is used to support and connect various components, thereby completing the material filtration operation through the cooperation of other components. A working bin 11 is fixed to the bottom of the feeding bin 1, and a discharge bin 12 is fixed to the bottom of the working bin 11. Material enters the working bin 11 from the feeding bin 1 and undergoes filtration within the working bin 11. The filtered material is discharged through the discharge bin 12 for subsequent processing. The main filter screen 2 and the spare filter screen 21 fixed to the inner wall of the feeding bin 1 are both used for material filtration. Both the main filter screen 2 and the spare filter screen 21 have screen holes inside, so that when the material reaches the top of the main filter screen 2 and the spare filter screen 21, material smaller than the screen holes will pass through the main filter screen 2 and the spare filter screen 21 and enter the discharge bin 12. Inside, materials through the large and small sieve holes are blocked by the main filter screen 2 and the backup filter screen 21, thus completing the filtration process. A partition plate 22 fixed between the main filter screen 2 and the backup filter screen 21 separates them, ensuring that materials reaching the top of the main filter screen 2 do not reach the top of the backup filter screen 21, and vice versa. A switching plate 23 above the partition plate 22 separates the materials. When the two switching plates 23 move away from each other and contact the inner wall of the working chamber 11, the materials entering the working chamber 11 directly reach the top of the main filter screen 2 and are filtered through it. As filtration progresses, the main filter screen... When the internal screen holes become clogged, the switching plate 23 rotates, causing the two switching plates 23 to contact each other. At this time, the material entering the working chamber 11 will pass through the obstruction of the switching plate 23 and reach the top of the spare filter screen 21, where it will continue to be filtered. The feed chamber 1 is equipped with a backwash cleaning seat 3, which is located below the main filter screen 2 and the spare filter screen 21. The backwash cleaning seat 3 can guide water into the flushing nozzle 32, allowing water to be sprayed out from below the main filter screen 2 and the spare filter screen 21 to perform a reverse flushing operation, thereby cleaning the surfaces of the main filter screen 2 and the spare filter screen 21. A driven rod 33 is fixed to the side, and a connecting block 41 is fixed to the bottom end of the driven rod 33. The connecting block 41 can slide inside the drive chamber 4, so that when the material is filtered through the main filter screen 2, the backwash cleaning seat 3 will be located below the spare filter screen 21. When the material is filtered through the spare filter screen 21, when the switching plate 23 blocks the space above the main filter screen 2 by rotating, the backwash cleaning seat 3 will move to the bottom of the main filter screen 2 under the drive of the driven rod 33 and the connecting block 41. Thus, when the material is filtered through the spare filter screen 21, the flushing nozzle 32 located below the main filter screen 2 can clean the main filter screen 2 by spraying water. After cleaning, the blocking frame 31 will block the water source.This prevents water from coming into contact with the materials and affecting them.

[0022] The outer wall of the working chamber 11 is provided with a guide groove 13, and the driven rod 33 is slidably connected to the inside of the feeding chamber 1 through the guide groove 13. The guide groove 13 on the outer wall of the working chamber 11 is used to guide the sliding of the driven rod 33, so that the driven rod 33 can move horizontally under the drive of the linkage block 41, thereby driving the backwash cleaning seat 3 to move to a suitable position to complete the backwash cleaning operation of the main filter screen 2 or the spare filter screen 21, so as to avoid the screen hole from becoming blocked after a long period of filtration operation, which would prevent the filtration operation from being unable to proceed.

[0023] The outer wall of the working chamber 11 is provided with several drainage holes 14 and several impurity discharge ports 15. The drainage holes 14 are located above the backwash cleaning seat 3, and the impurity discharge ports 15 are located above the main filter screen 2 and the spare filter screen 21. The drainage holes 14 on the outer wall of the feeding chamber 1 are used to discharge the water source after cleaning. The inner walls of the drainage holes 14 and the impurity discharge ports 15 are all equipped with plugs. When the flushing operation is carried out, the workers can remove the plugs installed inside the drainage holes 14 and the impurity discharge ports 15 at the corresponding positions. This allows the impurities cleaned above the main filter screen 2 or the spare filter screen 21 during the cleaning process to be discharged through the impurity discharge ports 15, while the water source cleaned inside the sealing frame 31 can be discharged through the drainage holes 14, so that the main filter screen 2 or the spare filter screen 21 can continue to perform filtration operations after cleaning.

[0024] A rotating seat 24 is fixedly connected to the top of the main filter screen 2, and a switching plate 23 is rotatably connected to the outside of the rotating seat 24. The rotating seat 24 fixed to the top of the main filter screen 2 is used to support the switching plate 23. A micro motor is installed inside the rotating seat 24, and its output end is connected to the switching plate 23, so that the switching plate 23 can rotate on the outside of the rotating seat 24 to complete the work of introducing materials to the main filter screen 2 or the spare filter screen 21 respectively, so as to achieve the purpose of switching the main filter screen 2 and the spare filter screen 21 to filter the materials.

[0025] A water supply pipe 34 is fixedly connected to one side of the driven rod 33. The water supply pipe 34 is connected to the backwash cleaning seat 3 and the flushing nozzle 32 through the driven rod 33. The water supply pipe 34 fixed to one side of the driven rod 33 is used to introduce water into the driven rod 33. Since the driven rod 33 is connected to the backwash cleaning seat 3 and the flushing nozzle 32, the water can enter the backwash cleaning seat 3 and finally be discharged through the flushing nozzle 32. This allows the flushing nozzle 32 to clean the main filter screen 2 or the backup filter screen 21 through the water flow, preventing the main filter screen 2 or the backup filter screen 21 from being blocked and affecting the filtration effect.

[0026] A rubber pad 35 is fixedly connected to the top of the sealing frame 31. The rubber pad 35 is located below the partition plate 22 and is in close contact with the partition plate 22. The rubber pad 35 fixed to the top of the sealing frame 31 is used to make the sealing frame 31 and the partition plate 22 fit together, so that when the water source is sprayed out through the water spray nozzle 32 to clean the main filter screen 2 or the spare filter screen 21, the water source will not flow out from the inside of the sealing frame 31, thereby preventing the water source from affecting the materials.

[0027] A transmission screw 42 is rotatably connected to the inside of the drive chamber 4, and the transmission screw 42 is screwed into the connecting block 41. The transmission screw 42, which rotates inside the drive chamber 4, is used to drive the connecting block 41 to move. A drive motor is installed inside the drive chamber 4, and the output end of the drive motor is connected to the transmission screw 42, so that the transmission screw 42 can rotate inside the drive chamber 4. Since the transmission screw 42 is screwed into the connecting block 41, when the transmission screw 42 rotates, the connecting block 41 will move horizontally outside the transmission screw 42, so as to drive the driven rod 33 and the backwash cleaning seat 3 to move, so that the backwash cleaning seat 3 and the water spray nozzle 32 can move to the shampoo head of the main filter screen 2 or the spare filter screen 21 respectively, so as to complete the backwash cleaning operation of the main filter screen 2 or the spare filter screen 21.

[0028] The working principle and usage process of this utility model are as follows: During filtration, the material enters the feed hopper 1 and then the working hopper 11, directly reaching the top of the main filter screen 2. The main filter screen 2 has sieve holes, allowing the material reaching the top of the main filter screen 2 to be filtered. As filtration progresses, if the sieve holes in the main filter screen 2 become clogged, the micro motor installed inside the rotating seat 24 will drive the switching plate 23 to rotate above the partition plate 22 to block the space above the main filter screen 2. At the same time, the drive motor inside the drive chamber 4 will drive the transmission screw 42 to rotate, causing the transmission screw 42 to drive the connecting block 41 and the driven rod 33 to move horizontally until the driven rod 33 and the backwash cleaning seat 3 move to the bottom of the main filter screen 2. At this time, the water supply pipe 34 will introduce water. Water entering the backwash cleaning seat 3 is sprayed upwards through the flushing nozzle 32 to flush and clean the material-filtering side of the main filter screen 2 below, causing the material clogged in the screen holes of the main filter screen 2 to be flushed out. The flushed impurities are discharged through the discharge port 15, and the cleaned water is discharged through the drain hole 14. Due to the blocking of the switching plate 23, after the material enters the working chamber 11, it is guided by the switching plate 23 to the top of the spare filter screen 21 for further filtration. When the screen holes of the spare filter screen 21 become clogged, the switching plate 23 and the backwash cleaning seat 3 will move back to their original positions to flush and clean the spare filter screen 21, and the material will be filtered again through the main filter screen 2. This process is repeated until the filtration of the material is completed.

Claims

1. A filtration device for a horizontal sand mill, comprising a feed bin (1), characterized in that: The bottom of the feeding bin (1) is fixedly connected to the working bin (11), and the bottom of the working bin (11) is fixedly connected to the discharge bin (12). The inner wall of the working bin (11) is fixedly connected to the main filter screen (2) and the spare filter screen (21). A partition plate (22) is fixedly connected between the main filter screen (2) and the spare filter screen (21). A switching plate (23) is provided above the partition plate (22). The feeding bin (1) is provided with a backwash cleaning seat (3). A sealing frame (31) is fixedly connected to the top of the backwash cleaning seat (3). A flushing nozzle (32) is fixedly connected to the top of the backwash cleaning seat (3). A driven rod (33) is fixedly connected to one side of the backwash cleaning seat (3). A drive bin (4) is fixedly connected to the outer wall of the working bin (11). A linkage block (41) is slidably connected to the inner side of the drive bin (4). The linkage block (41) is fixedly connected to the bottom of the driven rod (33).

2. The filtration device for a horizontal sand mill according to claim 1, characterized in that: The outer wall of the working chamber (11) is provided with a guide groove (13), and the driven rod (33) is slidably connected to the inside of the feeding chamber (1) through the guide groove (13).

3. The filtration device for a horizontal sand mill according to claim 1, characterized in that: The outer wall of the working chamber (11) is provided with several drainage holes (14) and several waste discharge ports (15). The drainage holes (14) are located above the backwash cleaning seat (3), and the waste discharge ports (15) are located above the main filter screen (2) and the spare filter screen (21).

4. The filtration device for a horizontal sand mill according to claim 1, characterized in that: The main filter screen (2) is fixedly connected to a rotating seat (24) at its top, and the switching plate (23) is rotatably connected to the outside of the rotating seat (24).

5. The filtration device for a horizontal sand mill according to claim 1, characterized in that: A water supply pipe (34) is fixedly connected to one side of the driven rod (33), and the water supply pipe (34) is connected to the backwash cleaning seat (3) and the flushing nozzle (32) through the driven rod (33).

6. The filtration device for a horizontal sand mill according to claim 1, characterized in that: A rubber pad (35) is fixedly connected to the top of the sealing frame (31). The rubber pad (35) is located below the partition plate (22) and is in close contact with the partition plate (22).

7. The filtration device for a horizontal sand mill according to claim 1, characterized in that: The drive chamber (4) is rotatably connected to a transmission screw (42), which is screwed into the connecting block (41).

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