A continuous filtration device

Abstract

The invention relates to a continuous filtration device, which is used for providing a circulation mechanism for rotating power, and also comprises a filtration mechanism for filtering raw materials and an auxiliary mechanism for improving the precipitation effect of raw materials during the filtration process. Four filtration mechanisms are evenly installed on the circulation mechanism, and the auxiliary mechanism is fixed inside the filtration mechanism, so as to solve the technical problem that the precipitation speed of liquid inside the raw material of tributyl citrate is slow during the filtration process.

Description

Technical Field

[0001] The invention relates to the field of suction filtration equipment, in particular to continuous suction filtration equipment. Background Art

[0002] Tributyl acetyl citrate is a new type of non-toxic additive and plasticizer that can be used in plastic processing industries such as food packaging, medical instruments, children's toys, and personal hygiene products. It has good compatibility with plastics such as PVC and vinyl chloride-vinyl acetate copolymers. The plasticized plastic has good low-temperature flexibility and is heat-stable, light-resistant, water-resistant, and cold-resistant during sealing. At present, in the preparation of tributyl citrate, the last step is to filter the raw materials, so that the finished product liquid is precipitated and collected.

[0003] The Chinese invention patent with publication number CN105771413B discloses a vacuum filtration device for convenient slag removal, including a vacuum pump, a container bottle and a filter body, wherein the vacuum pump is connected to the container bottle through an exhaust pipe, and the filter body is connected to the container bottle through a first connecting pipe; a slag removal device is provided at the bottom of the container bottle; the slag removal device includes a slag outlet, a scraper ring arranged along the inside of the container bottle, and an operating rod fixedly connected to the scraper ring, one end of the operating rod extends out of the bottom of the container bottle, and drives the hanging ring to move up and down along the inner wall of the container bottle. In this scheme, the final filtration process is a single filtration of the raw material and the raw material is in a fixed state during the filtration process. The liquid at the lower end is easier to precipitate, while the liquid at the upper end of the raw material cannot be precipitated in time, which increases the reaction time. Summary of the invention

[0004] The invention provides a continuous filtration device to solve the current technical problem that the liquid inside the raw material of tributyl citrate is precipitated slowly during the filtration process.

[0005] A continuous filtration device of the present invention adopts the following technical solution: it includes a circulation mechanism for providing rotational power, a filtration mechanism for filtering raw materials, and an auxiliary mechanism for improving the precipitation effect of raw materials during the filtration process, four filtration mechanisms are evenly installed on the circulation mechanism, and the auxiliary mechanism is fixed inside the filtration mechanism;

[0006] The suction filtration mechanism comprises a filter cartridge, a piston is slidably connected inside the filter cartridge, a spiral rod is connected to the lower end of the piston, the lower end of the spiral rod passes through the bottom of the filter cartridge, a return spring connected to the spiral rod is installed at the bottom of the filter cartridge, the return spring is used to provide kinetic energy for the spiral rod to return, and a groove matching the spiral rod is formed on the filter cartridge, a filter screen is installed at the top position inside the filter cartridge, the filter screen is used to hold raw materials, a hexagonal prism is connected inside the spiral rod, and a rubber block matching the hexagonal prism is installed at the top of the spiral rod, and a liquid outlet is provided on the side of the filter cartridge, and the liquid outlet is used to discharge the filtered liquid;

[0007] The auxiliary mechanism includes a cross, which is installed on the lower side of the filter and located on the upper side of the piston. A rotating shaft is connected to the cross, and four adjusting shafts are evenly connected on the circumference of the rotating shaft. A scraper is installed on the adjusting shaft. The bottom of the rotating shaft is fixedly connected to the hexagonal prism, and the adjusting shaft is rotatably connected to the rotating shaft. Two limit blocks are provided on the inner end of the adjusting shaft, and a groove that matches the limit block is formed inside the rotating shaft, and a support spring is installed in the groove.

[0008] Furthermore, the spiral rod is formed with two spiral strips on a cylinder, and the spiral rod is spiral-shaped, so that when it cooperates with the groove on the filter cartridge, when the spiral rod is pulled downward, the spiral rod itself can rotate in coordination with the filter cartridge, thereby driving the rubber block to rotate.

[0009] Furthermore, the hexagonal prism is slidably connected to the spiral rod, and the rubber block is connected to the upper end of the spiral rod by gluing. The hexagonal prism is slidably connected to the rubber block, and a hole passing through the hexagonal prism is formed on the rubber block. When the spiral rod is pulled out and rotated, the top of the hexagonal prism is connected to the rotating shaft, so the hexagonal prism extends out from the inside of the spiral rod. Because the spiral rod is rotating, the hexagonal prism also rotates while extending, thereby driving the rotating shaft at the top to rotate.

[0010] Furthermore, the cross is fixedly connected to the filter cartridge, the rotating shaft is rotatably connected to the cross, and the rotating shaft is fixedly connected to the hexagonal prism.

[0011] Furthermore, the scraper is fixedly connected to the adjusting shaft, the adjusting shaft is rotatably connected to the rotating shaft, the limit block is integrally formed on the adjusting shaft, and the rotating shaft drives the adjusting shaft and the scraper to rotate when rotating. Moreover, because the scraper is moved by the filter screen, the scraper can be supported by the upper limit block and the supporting spring on the adjusting shaft when rotating forward. When the movement occurs, the scraper continuously moves the filter screen on the top, so that during the pulling and pulling process of the piston, the negative pressure makes it easier for the liquid to precipitate out of the moved raw material.

[0012] Furthermore, the top of the scraper is slidably fitted against the bottom surface of the filter.

[0013] Furthermore, the circulation mechanism includes a machine base, an electric motor is installed on the machine base, a rotating frame is connected to the power output end of the motor, a fixed gear ring is arranged on the inner side of the rotating frame, the bottom of the fixed gear ring is fixedly connected to the machine base, four passive gears are evenly connected to the rotating frame, the toothed end of the passive gear cooperates with the fixed gear ring, the shaft end of the passive gear extends out of the rotating frame to connect to the filter cartridge, the traction rod is connected to the lower end of the spiral rod, and the inner wall of the limit frame is provided with a limit groove that cooperates with the traction rod.

[0014] The beneficial effects of the present invention are as follows: the present invention forms a negative pressure between the inside of the filter cartridge and the filter screen by pulling the piston through the spiral rod. During the filtration process, the scraper can swing disorderly to move the raw materials to make the liquid more easily precipitated. When the reset spring drives the piston to reset quickly, the internal high pressure cooperates with the flipped adjustment shaft to more easily discharge the processed raw materials, thereby improving the overall work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0016] Figure 1 A schematic diagram of the circulation mechanism structure of an embodiment of a continuous filtration device of the present invention;

[0017] Figure 2 A schematic diagram of the filter cartridge structure of an embodiment of a continuous filtration device of the present invention;

[0018] Figure 3 A schematic diagram of the internal structure of a filter cartridge of an embodiment of a continuous filtration device of the present invention;

[0019] Figure 4 This is a schematic structural diagram of the matching relationship between the spiral rod and the hexagonal prism of an embodiment of a continuous filtration device of the present invention;

[0020] Figure 5 It is a front view of the inside of a filter cartridge of an embodiment of a continuous filtration device of the present invention;

[0021] Figure 6 A schematic diagram of the auxiliary mechanism structure of an embodiment of a continuous filtration device of the present invention;

[0022] Figure 7A schematic diagram of the structure of a limit block of an embodiment of a continuous filtration device of the present invention;

[0023] Figure 8 The present invention is a schematic diagram of the scraper swing amplitude structure of an embodiment of a continuous filtration device.

[0024] In the figure: 1. circulation mechanism; 2. filtration mechanism; 3. auxiliary mechanism; 11. machine base; 12. motor; 13. limit frame; 14. rotating frame; 15. fixed gear ring; 16. passive gear; 17. traction rod; 21. filter cartridge; 22. spiral rod; 23. filter screen; 24. return spring; 25. piston; 26. rubber block; 27. hexagonal prism; 28. liquid outlet; 31. rotating shaft; 32. cross; 33. scraper; 34. adjusting shaft; 35. limit block; 36. support spring. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0026] An embodiment of a continuous filtration device of the present invention is as follows Figures 1 to 8 As shown, it includes a circulation mechanism 1 for providing rotational power, a filtration mechanism 2 for filtering the raw material, and an auxiliary mechanism 3 for improving the precipitation effect of the raw material during the filtration process. Four filtration mechanisms 2 are evenly installed on the circulation mechanism 1, and the auxiliary mechanism 3 is fixed inside the filtration mechanism 2;

[0027] The suction filtration mechanism 2 includes a filter cartridge 21, a piston 25 is slidably connected inside the filter cartridge 21, a spiral rod 22 is connected to the lower end of the piston 25, the lower end of the spiral rod 22 passes through the bottom of the filter cartridge 21, a reset spring 24 connected to the spiral rod 22 is installed at the bottom of the filter cartridge 21, the reset spring 24 is used to provide kinetic energy for the spiral rod 22 to reset, and a groove matching the spiral rod 22 is formed on the filter cartridge 21, a filter screen 23 is installed at the top position inside the filter cartridge 21, the filter screen 23 is used to hold the raw materials, a hexagonal prism 27 is connected inside the spiral rod 22, and a rubber block 26 matching the hexagonal prism 27 is installed at the top of the spiral rod 22, and a liquid outlet 28 is provided on the side of the filter cartridge 21, and the liquid outlet 28 is used to discharge the filtered liquid;

[0028] The auxiliary mechanism 3 includes a cross 32, which is installed on the lower side of the filter 23 and located on the upper side of the piston 25. The cross 32 is connected to a rotating shaft 31. Four adjusting shafts 34 are evenly connected on the circumference of the rotating shaft 31. A scraper 33 is installed on the adjusting shaft 34. The bottom of the rotating shaft 31 is fixedly connected to the hexagonal prism 27. The adjusting shaft 34 is rotatably connected to the rotating shaft 31. The adjusting shaft 34 is located at the inner side end of the rotating shaft 31 and is provided with two limit blocks 35. A groove that matches the limit block 35 is formed inside the rotating shaft 31, and a support spring 36 is installed in the groove.

[0029] like Figure 4 As shown, the spiral rod 22 is a cylinder with two spiral strips formed on it. The spiral rod 22 is spiral-shaped so as to cooperate with the groove on the filter cartridge 21. When the spiral rod 22 is pulled downward, the spiral rod 22 itself can cooperate with the filter cartridge 21 to rotate, thereby driving the rubber block 26 to rotate.

[0030] like Figure 4 As shown, the hexagonal prism 27 is slidably connected to the screw rod 22, and the rubber block 26 is connected to the upper end of the screw rod 22 by gluing. The hexagonal prism 27 is slidably connected to the rubber block 26, and a hole is formed on the rubber block 26 to pass through the hexagonal prism 27. When the screw rod 22 is pulled out and rotated, because the top of the hexagonal prism 27 is connected to the rotating shaft 31, the hexagonal prism 27 extends out from the inside of the screw rod 22. Because the screw rod 22 is rotating, the hexagonal prism 27 also rotates while extending, thereby driving the rotating shaft 31 at the top to rotate.

[0031] The cross 32 is fixedly connected to the filter cartridge 21 , the rotating shaft 31 is rotatably connected to the cross 32 , and the rotating shaft 31 is fixedly connected to the hexagonal prism 27 .

[0032] like Figure 6-8 As shown, the scraper 33 is fixedly connected to the adjusting shaft 34, the adjusting shaft 34 is rotatably connected to the rotating shaft 31, the limit block 35 is integrally formed on the adjusting shaft 34, and the rotating shaft 31 drives the adjusting shaft 34 and the scraper 33 to rotate when rotating. Because the scraper 33 is moved by the filter screen 23, the scraper 33 can be supported by the upper limit block 35 and the support spring 36 on the adjusting shaft 34 when rotating forward. When the movement occurs, the scraper 33 continuously moves the filter screen 23 on the top, so that during the pulling and pulling process of the piston 25, the negative pressure makes it easier for the liquid to precipitate out of the moved raw material.

[0033] The top of the scraper 33 is slidably matched with the bottom surface of the filter screen 23 .

[0034] The circulation mechanism 1 includes a machine base 11, on which a motor 12 is installed. A rotating frame 14 is connected to the power output end of the motor 12. A fixed gear ring 15 is arranged on the inner side of the rotating frame 14. The bottom of the fixed gear ring 15 is fixedly connected to the machine base 11. Four passive gears 16 are evenly connected to the rotating frame 14. The toothed end of the passive gear 16 cooperates with the fixed gear ring 15. The shaft end of the passive gear 16 extends out of the rotating frame 14 to connect to the filter cartridge 21. The traction rod 17 is connected to the lower end of the spiral rod 22. The inner wall of the limiting frame 13 is provided with a limiting groove that cooperates with the traction rod 17.

[0035] In summary, when the motor 12 is started, the motor 12 drives the rotating frame 14 and the four filter cartridges 21 fixed at the upper end to start orbital rotation, and the filter cartridge 21 rotates by itself through the passive gear 16 and the fixed gear ring 15. During the process of orbital rotation and rotation, the traction rod 17 is stuck in the limiting groove of the inner wall of the limiting frame 13, so that the spiral rod 22 is pulled out from the inside of the filter cartridge 21 through the traction rod 17. At the initial position, the raw material is poured into the upper end of the filter screen 23 inside the filter cartridge 21. During the process of the spiral rod 22 being pulled out, the piston 25 is pulled downward by the spiral rod 22, so that negative pressure is generated between the filter screen 23 inside the filter cartridge 21 and the piston 25, and the raw material is filtered. The liquid in the raw material is precipitated. At the same time, because the spiral rod 22 is spirally matched with the filter cartridge 21, the spiral rod 22 rotates during the pulling process, and the hexagonal prism 27 connected to the spiral rod 22 cooperates with the rotating shaft 31, so that the rotating shaft 31 drives the adjusting shaft 34 and the scraper 33 to rotate. Because the scraper 33 is moved by the filter screen 23, the scraper 33 can be supported by the upper limit block 35 and the supporting spring 36 of the adjusting shaft 34 when rotating forward. When the scraper 33 is moved, the scraper 33 continuously moves the filter screen 23 at the top, so that during the pulling process of the piston 25, the negative pressure makes it easier for the liquid to move out of the moved raw material, and when the piston 25 reaches the bottom, the filter cartridge 21 is as Figure 2 As shown, the filter cartridge 21 is tilted, and the liquid outlet hole 28 is positioned downward. At this time, the filtered liquid can be collected. At the same time, the interior of the filter cartridge 21 is at normal pressure, and the rotating frame 14 continues to rotate. When the opening of the filter cartridge 21 is downward, the traction rod 17 is disengaged from the limiting groove on the inner wall of the limiting frame 13, and the reset spring 24 pulls the spiral rod 22 to reset the spiral rod 22 and the piston 25. While resetting, the spiral rod 22 is reversed by the limit of the filter cartridge 21, and the rotating shaft 31 and the adjusting shaft 34 are reversed. At this time, the adjusting shaft 34 is blocked by the filter screen 23 and flipped. The adjusting shaft 34 is as shown in FIG. Figure 8 As shown, it is in a nearly vertical state, and is driven to rotate by the rotating shaft 31 at the same time, so as to scrape the filter screen 23 in rotation. At this time, the piston 25 pressurizes the inside of the filter cartridge 21 after leaving the liquid outlet 28. The pressure and scraping force cooperate to remove the raw material residue, improve the cleaning effect of the filter screen 23, and then perform a rotary filtration operation.

[0036] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A continuous filtration device, comprising a circulation mechanism for providing rotational power, characterized in that: It also includes a suction filtration mechanism for suction filtering the raw material and an auxiliary mechanism for improving the raw material precipitation effect during the suction filtration process, four suction filtration mechanisms are evenly installed on the circulation mechanism, and the auxiliary mechanism is fixed inside the suction filtration mechanism; The suction filtration mechanism comprises a filter cartridge, a piston is slidably connected inside the filter cartridge, a spiral rod is connected to the lower end of the piston, the lower end of the spiral rod passes through the bottom of the filter cartridge, a return spring connected to the spiral rod is installed at the bottom of the filter cartridge, and a groove matching the spiral rod is formed on the filter cartridge, a filter screen is installed at the top position inside the filter cartridge, a hexagonal prism is connected inside the spiral rod, and a rubber block matching the hexagonal prism is installed at the top of the spiral rod, and a liquid outlet is arranged on the side of the filter cartridge; The auxiliary mechanism includes a cross, which is installed on the lower side of the filter and located on the upper side of the piston. The cross is connected to a rotating shaft, and four adjusting shafts are evenly connected on the circumference of the rotating shaft. A scraper is installed on the adjusting shaft. The bottom of the rotating shaft is fixedly connected to the hexagonal prism, and the adjusting shaft is rotatably connected to the rotating shaft. The adjusting shaft is located at the inner side end of the rotating shaft and is provided with two limit blocks. A groove matching the limit block is formed inside the rotating shaft, and a support spring is installed in the groove; The circulation mechanism includes a machine base, an electric motor is installed on the machine base, a rotating frame is connected to the power output end of the electric motor, a fixed gear ring is arranged on the inner side of the rotating frame, the bottom of the fixed gear ring is fixedly connected to the machine base, four passive gears are evenly connected to the rotating frame, the toothed end of the passive gear cooperates with the fixed gear ring, the shaft end of the passive gear extends out of the rotating frame to connect the filter cartridge, a traction rod is connected to the lower end of the spiral rod, and a limiting groove matching the traction rod is arranged on the inner wall of the limiting frame.

2. A continuous filtration device according to claim 1, characterized in that: The spiral rod is a cylinder with two spiral strips formed on it.

3. A continuous filtration device according to claim 1, characterized in that: The hexagonal prism is slidably connected to the spiral rod, the rubber block is connected to the upper end of the spiral rod by gluing, the hexagonal prism is slidably connected to the rubber block, and a hole that passes through the hexagonal prism is formed on the rubber block.

4. A continuous filtration device according to claim 1, characterized in that: The cross is fixedly connected to the filter cartridge, the rotating shaft is rotatably connected to the cross, and the rotating shaft is fixedly connected to the hexagonal prism.

5. A continuous filtration device according to claim 1, characterized in that: The scraper is fixedly connected to the adjusting shaft, the adjusting shaft is rotatably connected to the rotating shaft, and the limiting block is integrally formed on the adjusting shaft.

6. A continuous filtration device according to claim 1, characterized in that: The top of the scraper is in sliding cooperation with the bottom surface of the filter screen.

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