A closed plate filter

Abstract

The application relates to a closed plate filter and relates to the technical field of silicon oil preparation, which comprises a tank body, a tank cover is arranged on the top of the tank body, a pressure display is arranged on the top of the tank cover, a quick-opening mechanism is fixedly connected to the outer wall of the tank cover, a lifting mechanism is arranged on the top of the tank cover, a pneumatic vibrating body is arranged on the outer wall of the tank body, an inner half shaft is fixedly connected to the output end of the pneumatic vibrating body, a filter plate is sleeved and arranged on the outer wall of the inner half shaft, a butterfly valve actuating mechanism is arranged at the bottom of the tank body, and the butterfly valve actuating mechanism comprises a butterfly valve body, a gear transmission group, a driving motor, a vertical bevel gear group, a shell, a transmission gear, a gear ring and a scraper. The tank body bottom rotary scraper is matched with the transmission of the gear ring and the transmission gear, the tank body bottom dead angle scraping is realized, the accumulated liquid residues are cleaned, and the accumulated liquid at the tank bottom is completely discharged by the butterfly valve body.

Description

Technical Field

[0001] This application relates to the field of filter technology for silicone oil preparation, and in particular to a closed plate filter. Background Technology

[0002] Currently, in the silicone oil preparation process, after the decolorization process, the silicone oil needs to be filtered for impurities to ensure product purity. Commonly used closed filters mostly adopt a straight pipe discharge structure at the bottom of the tank.

[0003] In the silicone oil preparation process, after the decolorization operation, the silicone oil needs to be filtered using a closed filter. However, in existing filters, there is a straight pipe at the red line position, which prevents a lot of liquid from draining. This results in too much liquid when discharging the filter cake, and after the wastewater is discharged, sediment in the wastewater adheres to the walls and is difficult to remove from the bottom of the tank. To address the above-mentioned issues, a closed plate filter that can completely drain the accumulated liquid and clean the bottom of the tank after drainage is needed. Utility Model Content

[0004] The purpose of this application is to provide a closed plate filter, which has the advantages of eliminating dead corners of liquid accumulation at the bottom of the tank, improving the dryness of the filter cake discharge, and reducing the waste of silicone oil raw materials. It solves the problems of existing closed filters for silicone oil filtration where liquid accumulation at the bottom cannot be completely drained and residual stains on the bottom of the tank are difficult to clean.

[0005] The sealed plate filter provided in this application adopts the following technical solution: A sealed plate filter includes a tank, a tank cover is installed on the top of the tank, a pressure indicator is provided on the top of the tank cover, a quick-opening mechanism is fixedly connected to the outer wall of the tank cover, a lifting mechanism is installed on the top of the tank cover, a pneumatic vibrator is installed on the outer wall of the tank, an inner half shaft is fixedly connected to the output end of the pneumatic vibrator, a filter plate is sleeved on the outer wall of the inner half shaft, and a butterfly valve actuator is installed at the bottom of the tank. The butterfly valve actuator includes a butterfly valve body, a gear transmission group, a drive motor, a vertical bevel gear group, a housing, a transmission gear, a gear ring, and a scraper.

[0006] By adopting the above technical solution and through the cooperation of the above structures, a closed-loop precision filtration of silicone oil is achieved, while the scraper assembly of the butterfly valve actuator 6 solves the problem of bottom liquid accumulation.

[0007] Preferably, an oil inlet is fixedly connected to the outer wall of the conical bottom of the tank, and an oil inlet pipe observation port is fixedly connected to one end of the oil inlet. An oil outlet shaft is fixedly connected to the bottom of the filter plate, and an oil outlet is fixedly connected to one end of the oil outlet shaft. An oil outlet pipe observation port is fixedly connected to one end of the oil outlet. An overflow port is fixedly connected to the outer wall of the upper part of the tank, and an overflow pipe observation port is fixedly connected to one end of the overflow port.

[0008] By adopting the above technical solution, the inlet, outlet and overflow of silicone oil during the filtration process can be visualized and observed, which makes it easier for operators to monitor the flow status of the medium in the tank in real time and detect abnormalities such as blockage and leakage in a timely manner.

[0009] Preferably, a sealing strip is provided at the edge of the tank cover and the tank body, and sealing strips are provided at the upper and lower connection positions of the butterfly valve actuator and the cone-shaped discharge tank bottom of the tank body. A frame is provided on the outer wall of the tank body, and a slot is opened on the inner side of the frame.

[0010] By adopting the above technical solution, the sealing effect of the sealing strip is used to ensure the airtightness of the connection between the tank cover and the tank body, and between the butterfly valve actuator and the tank body, so as to avoid leakage or intrusion of external impurities during the silicone oil filtration process. The frame supports the tank body and the butterfly valve actuator, and the slotted structure provides room for the rotation of the gear ring.

[0011] Preferably, a butterfly valve body is fixedly installed at the bottom outlet of the tank, an outer shell is fixedly connected to the inner side of the frame, a drive motor is fixedly connected inside the outer shell, the output shaft of the drive motor is fixedly connected to a gear transmission group through a coupling, a gear ring is rotatably installed on the outside of the tank, a transmission gear is meshed with the outside of the gear ring, a vertical bevel gear group is fixedly connected to the central shaft of the transmission gear, and a scraper is fixedly connected to the inner wall of the gear ring.

[0012] By adopting the above technical solution, the drive motor can drive the transmission gear to rotate through the gear transmission group and the vertical bevel gear group in sequence, thereby driving the gear ring to rotate circumferentially along the bottom of the tank, and finally driving the scraper to move synchronously, so as to realize the scraping operation on the bottom of the tank.

[0013] Preferably, the toothed ring is located inside the slot, the frame fixes the upper and lower parts of the tank, and the toothed ring rotates along the tank. The inclination angle of the scraper is tangent to the bottom conical curved surface angle of the tank, and the inner wall of the scraper is in contact with the inner wall of the tank. The free end of the scraper extends to the inner edge of the discharge port of the butterfly valve body.

[0014] By adopting the above technical solution, it is ensured that the scraper can conform to the conical bottom curved surface of the tank and make circumferential movements, so as to completely scrape the residual silicone oil and attached filter residue at the bottom to the discharge port of the butterfly valve body, clean up the accumulated liquid residue, and at the same time, the scraper extends to the edge of the butterfly valve discharge port, further avoiding the accumulation of liquid residue at the inlet.

[0015] Preferably, the gear transmission group is a double bevel gear transmission, including a driving bevel gear and a driven bevel gear, and the driving bevel gear and the driven bevel gear mesh perpendicularly with each other. The driving bevel gear is fixedly connected to the output shaft of the drive motor, and the driven bevel gear is fixedly connected to the valve cover shaft of the vertical bevel gear group and the butterfly valve body through a shaft.

[0016] By adopting the above technical solution, the power of the drive motor is transmitted in both horizontal and vertical directions using a double bevel gear and a vertical bevel gear set, ensuring the stability and efficiency of power transmission. Power transmission is carried out using the same power source, saving energy.

[0017] Preferably, the quick-opening mechanism includes a rotating handle, a latch, and a locking seat. The locking seat is fixed to the top outer wall of the can body, the latch is hinged to the outer wall of the can lid, and the latch can engage with the locking seat. The can lid and the can body can be quickly locked or unlocked by rotating the handle.

[0018] By adopting the above technical solution, operators can quickly engage or disengage the latch and lock seat by rotating the handle, enabling rapid opening and closing of the can lid and improving equipment maintenance efficiency.

[0019] Preferably, multiple filter plates are provided, arranged at equal intervals along the axial direction of the inner half-axis, and a rubber sealing gasket is sandwiched between two adjacent filter plates.

[0020] By adopting the above technical solution, the arrangement of multiple filter plates increases the filtration area and improves the silicone oil filtration efficiency, while the rubber sealing gaskets prevent media cross-flow between adjacent filter plates and ensure filtration accuracy.

[0021] In summary, this application includes at least one of the following beneficial technical effects: This type of sealed plate filter, by setting a rotating scraper that fits the conical bottom of the tank, and cooperating with the transmission action of the gear ring and the transmission gear, is driven by the same drive motor. It achieves scraping of material without dead corners at the bottom of the tank, eliminating the liquid accumulation problem of traditional straight pipe discharge structure. The butterfly valve actuator can not only completely remove the liquid accumulated at the bottom of the tank by using the butterfly valve body, but also completely scrape the residual silicone oil and attached filter residue at the bottom to the discharge point of the butterfly valve body, cleaning up the liquid residue. At the same time, the scraper extends to the edge of the butterfly valve discharge port, further avoiding liquid residue at the inlet. Attached Figure Description

[0022] Figure 1This is a front view of this application; Figure 2 This is a side view of this application; Figure 3 This is a cross-sectional view of this application; Figure 4 This is a schematic diagram of the butterfly valve actuator of this application; Figure 5 This is a schematic diagram of the connection structure between the filter plate and the inner half-shaft in this application; Figure 6 This is a schematic diagram of the vertical bevel gear set and gear transmission set of this application.

[0023] In the picture: 1. Quick-opening mechanism; 2. Pressure indicator; 3. Lifting mechanism; 4. Pneumatic vibrator; 5. Tank body; 6. Butterfly valve actuator; 601. Butterfly valve body; 602. Gear transmission assembly; 603. Drive motor; 604. Vertical bevel gear assembly; 605. Housing; 606. Transmission gear; 607. Gear ring; 608. Scraper; 7. Oil inlet pipe observation port; 8. Oil inlet; 9. Oil outlet shaft pipe; 10. Oil outlet pipe observation port; 11. Oil outlet; 12. Filter plate; 13. Overflow port; 14. Overflow pipe observation port; 15. Inner half shaft; 16. Tank cover; 17. Sealing strip; 18. Frame; 19. Grooving. Detailed Implementation

[0024] The following is in conjunction with the appendix Figure 1 - Appendix Figure 6 This application will be described in further detail below.

[0025] Example 1: A sealed plate filter, referring to Figure 1 , Figure 2 and Figure 3 The system includes a tank body 5, a tank cover 16 mounted on the top of the tank body 5, a pressure indicator 2 mounted on the top of the tank cover 16, a quick-opening mechanism 1 fixedly connected to the outer wall of the tank cover 16, a lifting mechanism 3 mounted on the top of the tank cover 16, a pneumatic vibrator 4 mounted on the outer wall of the tank body 5, an inner half-shaft 15 fixedly connected to the output end of the pneumatic vibrator 4, a filter plate 12 sleeved on the outer wall of the inner half-shaft 15, and a butterfly valve actuator 6 mounted at the bottom of the tank body 5. The butterfly valve actuator 6 includes a butterfly valve body 601, a gear transmission group 602, a drive motor 603, a vertical bevel gear group 604, a housing 605, a transmission gear 606, a gear ring 607, and a scraper 608. Through the cooperation of the above structures, a closed-loop precision filtration of silicone oil is achieved, and the scraper 608 assembly of the butterfly valve actuator 6 solves the problem of liquid accumulation at the bottom.

[0026] Preferably, an oil inlet 8 is fixedly connected to the outer wall of the conical bottom of the tank body 5, and an oil inlet pipe observation port 7 is fixedly connected to one end of the oil inlet 8. An oil outlet shaft pipe 9 is fixedly connected to the bottom of the filter plate 12, and an oil outlet 11 is fixedly connected to one end of the oil outlet shaft pipe 9. An oil outlet pipe observation port 10 is fixedly connected to one end of the oil outlet 11. An overflow port 13 is fixedly connected to the outer wall of the upper part of the tank body 5, and an overflow pipe observation port 14 is fixedly connected to one end of the overflow port 13. This enables visual observation of oil inlet, oil outlet, and overflow during the silicone oil filtration process, allowing operators to monitor the flow status of the medium inside the tank body 5 in real time and promptly detect blockages and leaks. In case of abnormal situations, sealing strips 17 are provided at the edges of the tank cover 16 and the tank body 5. Sealing strips 17 are also provided at the upper and lower connection positions of the butterfly valve actuator 6 and the cone-shaped discharge tank bottom of the tank body 5. A frame 18 is provided on the outer wall of the tank body 5. A slot 19 is opened on the inner side of the frame 18. The sealing effect of the sealing strips 17 ensures the airtightness of the connection positions between the tank cover 16 and the tank body 5, and between the butterfly valve actuator 6 and the tank body 5, so as to prevent leakage or intrusion of external impurities during the silicone oil filtration process. The frame 18 supports the tank body 5 and the butterfly valve actuator 6. The slot 19 structure provides room for the rotation of the gear ring 607.

[0027] Example 2: A sealed plate filter, referring to... Figure 4 , Figure 5 and Figure 6A butterfly valve body 601 is fixedly installed at the bottom outlet of the tank body 5. A housing 605 is fixedly connected to the inner side of the frame 18. A drive motor 603 is fixedly connected inside the housing 605. The output shaft of the drive motor 603 is fixedly connected to a gear transmission assembly 602 via a coupling. A gear ring 607 is rotatably mounted on the outside of the tank body 5. A transmission gear 606 is meshed with the outside of the gear ring 607. A vertical bevel gear assembly 604 is fixedly connected to the central shaft of the transmission gear 606. A scraper 608 is fixedly connected to the inner wall of the gear ring 607. The drive motor 603 can drive the transmission gear 606 to rotate sequentially through the gear transmission assembly 602 and the vertical bevel gear assembly 604, thereby driving the gear ring 607. 7. The scraper 608 rotates circumferentially around the bottom of the tank 5, eventually driving the scraper 608 to move synchronously, thus scraping the material from the bottom of the tank 5. The toothed ring 607 is located inside the slot 19. The frame 18 fixes the upper and lower parts of the tank 5 together, and the toothed ring 607 rotates along the tank 5. The inclination angle of the scraper 608 is tangent to the angle of the conical curved surface at the bottom of the tank 5, and the inner wall of the scraper 608 is in contact with the inner wall of the tank 5. The free end of the scraper 608 extends to the inner edge of the outlet of the butterfly valve body 601, ensuring that the scraper 608 can conform to the conical bottom curved surface of the tank 5 and move circumferentially, completely scraping the residual silicone oil and attached filter residue at the bottom to the outlet of the butterfly valve body 601, cleaning up the accumulated liquid residue. The scraper 608 extends to the edge of the butterfly valve outlet, further preventing liquid residue buildup at the inlet. The gear transmission group 602 is a double bevel gear transmission, including a driving bevel gear and a driven bevel gear, which mesh perpendicularly with each other. The driving bevel gear is fixedly connected to the output shaft of the drive motor 603, and the driven bevel gear is fixedly connected to the vertical bevel gear group 604 and the valve cover shaft of the butterfly valve body 601 via a shaft. The double bevel gears, in conjunction with the vertical bevel gear group 604, enable the transmission of power from the drive motor 603 in both horizontal and vertical directions, ensuring the stability and efficiency of power transmission. Utilizing the same power source for power transmission saves energy. The quick-opening mechanism 1 includes a rotating... The device includes a handle, a latch, and a lock seat. The lock seat is fixed to the top outer wall of the tank body 5. The latch is hinged to the outer wall of the tank cover 16 and can be engaged with the lock seat. By rotating the handle, the tank cover 16 can be quickly locked or unlocked from the tank body 5. Operators can quickly engage or disengage the latch and lock seat by rotating the handle, enabling the tank cover 16 to open and close quickly, thus improving equipment maintenance efficiency. Multiple filter plates 12 are provided and are arranged at equal intervals along the axial direction of the inner half-shaft 15. A rubber sealing gasket is sandwiched between two adjacent filter plates 12. The arrangement of multiple filter plates 12 increases the filtration area and improves the silicone oil filtration efficiency. The rubber sealing gasket prevents media crossflow between adjacent filter plates 12, ensuring filtration accuracy.

[0028] The implementation principle of this application embodiment is as follows: First, after the silicone oil decolorization process is completed, the silicone oil to be filtered enters the conical bottom of the tank 5 through the oil inlet 8. Under the pressure inside the tank, the silicone oil permeates upward through the filter plate 12, and the solid impurities are trapped on the surface of the filter plate 12 to form a filter cake. The filtered clean silicone oil is discharged from the oil outlet 11 through the oil outlet shaft pipe 9. If the pressure inside the tank exceeds the preset threshold or the filter plate 12 is blocked, the excess medium can be discharged from the overflow port 13. The operator can monitor the medium status in real time through the observation ports of each pipeline. Secondly, in the filter, the oil inlet pipe observation port 7 is either the liquid inlet or outlet, and the overflow pipe observation port 14 is either the liquid outlet or the air inlet. For example, backflushing air enters from the overflow pipe observation port 14 and exits from the oil inlet pipe observation port 7. Liquid enters from the bottom, passes through the filter plate 12, and then exits from the overflow pipe observation port 14. Solid substances in the liquid adhere to the filter plate 12. When the solids on the filter plate 12 accumulate to a certain extent, air is blown in from the overflow pipe observation port 14 to increase the pressure inside the tank 5, causing the liquid to flow out from the oil inlet pipe observation port 7. After filtration is completed, the drive motor 603 is started, and the power is transmitted through gears. After the double bevel gear of the moving unit 602 turns, it transmits to the vertical bevel gear set 604, which then drives the transmission gear 606 to rotate the gear ring 607 around the bottom of the tank 5. The scraper 608 on the inner wall of the gear ring 607 rotates synchronously against the conical inner wall of the tank 5, scraping the residual silicone oil liquid and the fallen filter cake to the discharge port of the butterfly valve body 601. At the same time, the pneumatic vibrator 4 is started, and the inner half shaft 15 drives the filter plate 12 to vibrate at high frequency, which helps the filter cake on the surface of the filter plate 12 to fall off completely and fall to the bottom of the tank 5. The butterfly valve body 601 is opened, and the scraper 608 continues to rotate until the filter cake and residual liquid are completely discharged, achieving smooth discharge.

[0029] Finally, when it is necessary to replace the filter plate 12 or clean the tank 5, the tank cover 16 can be lifted by the lifting mechanism 3, and the lock can be unlocked by rotating the handle of the quick-opening mechanism 1, so that the tank cover 16 can be opened for subsequent maintenance operations.

Claims

1. A sealed plate filter, comprising a tank (5), characterized in that: The top of the tank body (5) is equipped with a tank cover (16), and the top of the tank cover (16) is equipped with a pressure display (2). The outer wall of the tank cover (16) is fixedly connected with a quick-opening mechanism (1). The top of the tank cover (16) is equipped with a lifting mechanism (3). The outer wall of the tank body (5) is equipped with a pneumatic vibrator (4). The output end of the pneumatic vibrator (4) is fixedly connected with an inner half shaft (15). The outer wall of the inner half shaft (15) is fitted with a filter plate (12). The bottom of the tank body (5) is equipped with a butterfly valve actuator (6). The butterfly valve actuator (6) includes a butterfly valve body (601), a gear transmission group (602), a drive motor (603), a vertical bevel gear group (604), a housing (605), a transmission gear (606), a gear ring (607), and a scraper (608).

2. A sealed plate filter according to claim 1, characterized in that: An oil inlet (8) is fixedly connected to the outer wall of the conical bottom of the tank (5). An oil inlet pipe observation port (7) is fixedly connected to one end of the oil inlet (8). An oil outlet shaft pipe (9) is fixedly connected to the bottom of the filter plate (12). An oil outlet (11) is fixedly connected to one end of the oil outlet shaft pipe (9). An oil outlet pipe observation port (10) is fixedly connected to one end of the oil outlet (11). An overflow port (13) is fixedly connected to the outer wall of the upper part of the tank (5). An overflow pipe observation port (14) is fixedly connected to one end of the overflow port (13).

3. A sealed plate filter according to claim 1, characterized in that: A sealing strip (17) is provided at the edge of the tank cover (16) and the tank body (5). A sealing strip (17) is provided at the upper and lower connection positions of the butterfly valve actuator (6) and the cone-shaped discharge tank bottom of the tank body (5). A frame (18) is provided on the outer wall of the tank body (5). A slot (19) is provided on the inner side of the frame (18).

4. A sealed plate filter according to claim 3, characterized in that: A butterfly valve body (601) is fixedly installed at the bottom outlet of the tank (5). A housing (605) is fixedly connected to the inner side of the frame (18). A drive motor (603) is fixedly connected inside the housing (605). A gear transmission group (602) is fixedly connected to the output shaft of the drive motor (603) through a coupling. A gear ring (607) is rotatably installed on the outside of the tank (5). A transmission gear (606) is meshed with the outside of the gear ring (607). A vertical bevel gear group (604) is fixedly connected to the central shaft of the transmission gear (606). A scraper (608) is fixedly connected to the inner wall of the gear ring (607).

5. A sealed plate filter according to claim 4, characterized in that: The toothed ring (607) is located inside the slot (19). The frame (18) fixes the upper and lower parts of the tank (5) together. The toothed ring (607) rotates along the tank (5). The inclination angle of the scraper (608) is tangent to the bottom conical surface angle of the tank (5). The inner wall of the scraper (608) is in contact with the inner wall of the tank (5). The free end of the scraper (608) extends to the inner edge of the discharge port of the butterfly valve body (601).

6. A sealed plate filter according to claim 4, characterized in that: The gear transmission group (602) is a double bevel gear transmission, including a driving bevel gear and a driven bevel gear, and the driving bevel gear and the driven bevel gear mesh perpendicularly with each other. The driving bevel gear is fixedly connected to the output shaft of the drive motor (603), and the driven bevel gear is fixedly connected to the vertical bevel gear group (604) and the valve cover shaft of the butterfly valve body (601) through a shaft.

7. A sealed plate filter according to claim 1, characterized in that: The quick-opening mechanism (1) includes a rotating handle, a latch and a locking seat. The locking seat is fixed to the top outer wall of the tank body (5). The latch is hinged to the outer wall of the tank lid (16) and can be engaged with the locking seat. The locking or unlocking of the tank lid (16) and the tank body (5) can be completed quickly by rotating the handle.

8. A sealed plate filter according to claim 1, characterized in that: Multiple filter plates (12) are provided and are arranged at equal intervals along the axial direction of the inner half shaft (15). A rubber sealing gasket is sandwiched between two adjacent filter plates (12).

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