Filtering and grading device for spherical silicon dioxide

Abstract

The utility model discloses a filtering and grading device for spherical silicon dioxide, which is applied to the field of filtering equipment, solves the technical problem that low-content large-particle agglomerates in spherical silicon dioxide powder are not sufficiently filtered and removed, and adopts the technical scheme that the filtering and grading device comprises a mixing bin and a filtering device body, a mounting support is arranged at the bottom of the filtering device body, and the filtering device is characterized in that a filtering cavity is formed in the middle of the filtering device body, the top end of the filtering cavity is movably connected with an end cover body, a cavity opening of the filtering cavity is provided with a locking lug block for fixing the end cover body, and the locking lug block and the end cover body are fixed through a locking bolt. The middle part of the end cover body is movably connected with a filter element block, the filter element block comprises a filter screen block and a mounting support block fixed with the end part of the filter screen block, the mounting support block is connected with the end cover body in a sleeving manner, and the end cover body is also provided with a feeding hole, so that the technical effect of improving the reliable filtering fineness can be achieved.

Description

Technical Field

[0001] The utility model relates to the field of filtering equipment, in particular to a filtering and grading device for spherical silicon dioxide. Background Art

[0002] Spherical silica refers to a powder material with spherical particles, the main component of which is silica, and the crystal form is amorphous amorphous silica. It is widely used in CCL, EMC, electronic adhesives, plastics, films, polishing, special ceramics, ink coatings and cosmetics. The requirements for spherical silica used in high-end electronics are extremely high, requiring the spherical silica to have extremely high sphericity and spheroidization rate, high purity up to electronic grade, particle size as small as submicron or nanometer level, uniform particle distribution, and no agglomeration.

[0003] The powder preparation process causes the powder to contain large particles, agglomerates and other foreign matter. Dry classification of the powder (such as a classifier) ​​can remove most of the large particles and foreign matter in the powder, but it cannot remove 100%. The powder still contains large-sized particles and agglomerates, with a content of one ten-thousandth or even one millionth of a molecule. In order to remove these extremely low-content large particle agglomerates, they must be removed by wet filtration through a precision filtration device.

[0004] The utility model aims to provide a filtering and grading device for spherical silicon dioxide, which has the advantage of being able to improve the reliability and fineness of filtering.

[0005] The above technical objectives of the utility model are achieved through the following technical solutions: a spherical silica filtering and grading device, comprising a mixed material bin and a filter device body, a mounting support being provided at the bottom of the filter device body, characterized in that a filter chamber is provided in the middle portion of the filter device body, an end cover body is movably connected to the top end of the filter chamber, a locking ear block for fixing the end cover body is provided at the cavity opening of the filter chamber, the locking ear block and the end cover body are fixed by a locking bolt, a filter element block is movably connected to the middle portion of the end cover body, the filter element block comprises a filter screen block and a mounting support block fixed to the end of the filter screen block, the mounting support block is sleeved with the end cover body, a feed port is also provided on the end cover body, the feed port is provided on the end cover body between the filter element block and the cavity wall of the filter chamber, a discharge port connected to the filter screen block is also provided on the end cover body, and a feed high-pressure pump is provided between the feed port and the mixed material bin.

[0006] Furthermore: the end cover body is also provided with an active slot for the installation support block to rotatably sleeve, the installation support block is provided with a rotating plug block, a dark groove is provided in the end cover body on one side of the active slot, an adjusting gear is rotatably connected in the dark groove, the rotating plug block is provided with a rack block meshing with the adjusting gear, and a toggle lever for controlling the adjusting gear is passed through the end cover body.

[0007] Further: a pressure gauge is provided at the feed inlet.

[0008] Further: the discharge port is connected with an exhaust valve.

[0009] Further: a filter element observation window is provided on the side of the filter device body.

[0010] Furthermore: the bottom of the filter cavity is also connected to a discharge slot.

[0011] In summary, the utility model has the following beneficial effects:

[0012] The combination of the filter element block and the filter chamber can complete the precise filtration process of the spherical silica powder and water mixed slurry, and realize the efficient separation of low-content large particle agglomerates mixed in the spherical silica powder;

[0013] The movable installation design of the filter element block can not only meet the requirements of stable filtering and grading performance, but also improve the overall filtering performance and efficiency of the device. The disassembly and cleaning process of the processing personnel also ensures the filtration sufficiency and precision of the filtering device under continuous operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a cross-sectional schematic diagram for showing the structure of the filtering device in the embodiment;

[0015] Figure 2 yes Figure 1 A is an enlarged view of the middle image.

[0016] Figure numerals: 1. Mixing silo; 2. Filter device body; 3. Mounting support; 4. Filter chamber; 5. End cover body; 6. Locking ear block; 7. Locking bolt; 8. Filter element block; 9. Filter screen block; 10. Mounting support block; 11. Feed inlet; 12. Discharge outlet; 13. Feed high-pressure pump; 14. Movable slot; 15. Rotating plug block; 16. Concealed groove; 17. Adjusting gear; 18. Rack block; 19. Toggle lever; 20. Pressure gauge; 21. Exhaust valve; 22. Filter element observation window; 23. Discharge slot. DETAILED DESCRIPTION

[0017] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0018] Embodiment: A filtering and grading device for spherical silica, such as Figure 1 and Figure 2As shown, it includes a mixing silo 1 and a filter device body 2. A mounting support 3 is provided at the bottom of the filter device body 2. The user realizes the overall support of the filtering and grading device by mounting the support 3. During the filtering and grading process, the processing personnel fully mix and disperse the spherical silicon dioxide powder with the pure water in the mixing silo 1, and simultaneously use an ultrasonic generating device for ultrasonic dispersion. After sufficient stirring and mixing, the filtering processing of the slurry to be treated in the mixing silo 1 is carried out.

[0019] A filter chamber 4 is provided in the middle of the filter device body 2, and an end cap body 5 is movably connected to the top of the filter chamber 4. A locking ear block 6 for fixing the end cap body 5 is provided at the mouth of the filter chamber 4. The locking ear block 6 and the end cap body 5 are fixed by a locking bolt 7. The movable loading and unloading of the end cap body 5 at the top of the filter chamber 4 is achieved by disassembling and assembling the locking bolt. A filter element block 8 is movably connected to the middle of the end cap body 5. The filter element block 8 includes a filter screen block 9 and a mounting support block 10 fixed to the end of the filter screen block 9. The mounting support block 10 is sleeved with the end cap body 5 to ensure the stable operation of the filter screen block 9. The filter screen block 9 in this filter device is a metal fiber sintered felt. In the actual filtering process, the processing personnel select the appropriate pore accuracy of the filter screen block 9 according to the actual particle size of the spherical silica powder to be processed to ensure that large particle agglomerates can be fully screened out.

[0020] The end cover body 5 is also provided with a feed port 11, which is arranged on the end cover body 5 between the filter element block 8 and the wall of the filter chamber 4. A feed high-pressure pump 13 is arranged between the feed port 11 and the mixing bin 1. The powder slurry pumped into the filter chamber 4 by the feed high-pressure pump 13 first contacts the outside of the filter block 9. The powder and water mixed slurry with a pore accuracy lower than the filter block 9 can pass through the filter block 9 smoothly. The end cover body 5 is also provided with a discharge port 12 connected to the filter block 9. The powder and water passing through the filter block 9 are discharged from the discharge port 12, and the large particles with a pore accuracy higher than the filter block 9 are intercepted on the outside of the filter block 9, so as to achieve the filtering and grading effect. The discharge port 12 is connected with an exhaust valve 21, which is convenient for the processing personnel to exhaust and release the pressure according to the pressure in the cavity, so as to ensure the stable operation of the filtering device.

[0021] Since some large-particle powders will block the aperture of the filter block 9 and affect the filtering effect, the continuous feeding of the high-pressure feed pump 13 will cause excessive pressure inside the filter chamber 4. A pressure gauge 20 is provided at the feed port 11, which can detect the internal pressure of the filter chamber 4 in real time. Once the filtering pressure is too high, the processing personnel need to disassemble the end cover body 5 to clean the filter element block 8 and flush the large particles blocking the outside of the filter block 9. The bottom of the filter chamber 4 is also connected to a discharge slot 23. During the process of relatively stable performance of the filter block 9, the processing personnel can regularly open and close the discharge slot 23 to screen out large particles and discharge impurities in the filter chamber 4 to ensure the stability and reliability of the filtering process.

[0022] Taking into account the actual working conditions of the device, the powder slurry input from the feed port 11 continuously impacts one side of the filter block 9. Long-term operation can easily lead to aggravated blockage on one side of the filter block 9 and cause the overall filtering efficiency of the filter block 9. The end cover body 5 is also provided with an active slot 14 for the mounting support block 10 to be rotatably sleeved, and a rotating plug block 15 is provided on the mounting support block 10. Through the relative movement of the rotating plug block 15 and the active slot 14, the flexible adjustment of the device during the filtering process is satisfied. A dark groove 16 is provided in the end cover body 5 on one side of the active slot 14, and a rotating connection is provided in the dark groove 16. Adjust the gear 17, and the rotating plug block 15 is provided with a rack block 18 meshing with the adjusting gear 17. The end cover body 5 is penetrated with a toggle lever 19 for controlling the adjusting gear 17. The user of the device can drive the movement of the adjusting gear 17 by manually rotating the toggle lever 19, and drive the overall rotation position change of the filter element block 8, thereby flexibly changing the front face of the filter screen on one side of the feed inlet 11, thereby ensuring the overall filtering reliability and durability of the filter screen block 9, reducing the local filtering performance deviation of the filter screen block 9 caused by the continuous feed impact, thereby reducing the frequency of partial disassembly and cleaning of the filter element block 8.

[0023] A filter element observation window 22 is provided on the side of the filter device body 2, which helps the auxiliary processing personnel to timely grasp the working condition information inside the filter cavity 4 and the blockage condition of the filter block 9 during the use of the equipment, and judge the need for replacement and cleaning of the filter element block 8 with the assistance of pressure data. At the same time, the rotation adjustment and filtering process of the filter block 9 can also be observed in real time, so as to always ensure the stable operation of the filter device.

[0024] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed, but such modifications are protected by patent law as long as they are within the scope of the claims of the present invention.

Claims

1. A spherical silica filtering and grading device, comprising a mixing bin (1) and a filtering device body (2), wherein a mounting support (3) is provided at the bottom of the filtering device body (2), wherein: A filter chamber (4) is provided in the middle of the filter device body (2); an end cover body (5) is movably connected to the top of the filter chamber (4); a locking ear block (6) for fixing the end cover body (5) is provided at the cavity opening of the filter chamber (4); the locking ear block (6) and the end cover body (5) are fixed via a locking bolt (7); a filter element block (8) is movably connected to the middle of the end cover body (5); the filter element block (8) comprises a filter screen block (9) and a filter element block (8) connected to the filter screen block (9). A mounting support block (10) is fixed at the end, the mounting support block (10) is sleeved with the end cover body (5), the end cover body (5) is also provided with a feed port (11), the feed port (11) is arranged on the end cover body (5) between the filter element block (8) and the wall of the filter chamber (4), the end cover body (5) is also provided with a discharge port (12) connected to the filter screen block (9), and a feed high-pressure pump (13) is provided between the feed port (11) and the mixing bin (1).

2. A spherical silica filtering and classification device according to claim 1, characterized in that: The end cover body (5) is also provided with a movable slot (14) for the mounting support block (10) to be rotatably sleeved, the mounting support block (10) is provided with a rotating plug block (15), a dark groove (16) is provided in the end cover body (5) on one side of the movable slot (14), an adjusting gear (17) is rotatably connected in the dark groove (16), a rack block (18) meshing with the adjusting gear (17) is provided on the rotating plug block (15), and a toggle lever (19) for controlling the adjusting gear (17) is passed through the end cover body (5).

3. A spherical silica filtering and classification device according to claim 1, characterized in that: A pressure gauge (20) is provided at the feed inlet (11).

4. A spherical silica filtering and classification device according to claim 1, characterized in that: The discharge port (12) is connected to an exhaust valve (21).

5. A spherical silica filtering and classification device according to claim 1, characterized in that: A filter element observation window (22) is provided on the side of the filter device body (2).

6. A spherical silica filtering and classification device according to claim 1, characterized in that: The bottom of the filter cavity (4) is also connected to a discharge slot (23).

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