Positive pressure filter with high utilization rate

Abstract

A positive pressure filter high in utilization rate comprises a base, a filter bin, a controller and a plurality of lifters, the filter bin comprises a shell and an annular disc, the annular disc surrounds the shell and is fixedly connected to the shell, the shell covers the top face of the base, a filter cavity is formed between the shell and the base, and the lifters surround the shell and are fixedly connected to the shell. The lifters are fixedly arranged on the top surface of the base, the top surfaces of the lifters are connected to the annular disc, the controller is connected to the lifters, and the controller can control the lifters to stretch out and draw back in the vertical direction at the same time so as to drive the filtering bin to ascend and descend; according to the utility model, the solution can be prevented from dripping on the ground, and the utilization rate of the solution is high.

Description

Technical Field

[0001] The utility model relates to the technical field of filters, in particular to a positive pressure filter with high utilization rate. Background Art

[0002] At present, positive pressure filters are widely used in places such as pharmaceutical factories, foods, hospitals and laboratories. They are often used for filtering liquids and sterilizing. Their working principle is to place the filtrate in a sealed cavity filled with compressed air, and drive the liquid through the filter paper through the pressure difference to achieve solid-liquid separation; among them, the filter paper plays an important role in solid-liquid separation. For the sake of filtering efficiency and filtering effect, the filter paper needs to be replaced after filtering a certain amount of solution, so that in the process of filtering a batch of solution, the filter paper needs to be replaced many times. In order to replace the filter paper, it is necessary to first remove the multiple bolts between the shell and the base of the positive pressure filter, and then remove the shell before replacing the filter paper. After removing the shell, there must still be solution remaining on the inner cavity wall of the shell. If this part of the solution is large, it will flow down along the cavity wall and eventually drip onto the ground, causing the loss of solution, thereby reducing the utilization rate of the solution. Utility Model Content

[0003] The utility model aims to provide a positive pressure filter with high utilization rate, so as to solve the technical problem that after the positive pressure filter is moved out of the shell, the solution on the inner wall of the shell drips onto the ground to cause solution loss, resulting in low utilization rate of the solution by the positive pressure filter.

[0004] In order to achieve the above-mentioned purpose, the utility model provides a positive pressure filter with high utilization rate, including a base, a filter bin, a controller and a plurality of lifters, the filter bin including a shell and a ring disk, the ring disk is arranged around the shell, the ring disk is fixedly connected to the shell, the shell cover is arranged on the top surface of the base, a filter cavity is formed between the shell and the base, a plurality of lifters are arranged around the shell, the lifters are fixedly arranged on the top surface of the base, the top surface of the lifters is connected to the ring disk, the controller is connected to the lifters, and the controller can control each of the lifters to extend and retract in the vertical direction at the same time to drive the filter bin to rise and fall.

[0005] Optionally, the ring disk separates the shell and is arranged on the outside of the shell, and the filter chamber also includes a plurality of connecting rods arranged around the shell, the connecting rods are U-shaped, both ends of the connecting rods are connected to the outer side wall of the shell, and the middle part of the connecting rods is connected to the ring disk.

[0006] Optionally, the filter bin also includes a plurality of connecting members arranged around the shell, the connecting members including a first extension portion extending toward the shell and a second extension portion extending in a vertical direction, one end of the first extension portion is connected to the top surface of the ring disk, the other end of the first extension portion is connected to one end of the second extension portion, and the other end of the second extension portion is connected to the middle portion of the connecting rod.

[0007] Optionally, the lifter includes a cylinder body and a rod body arranged in sequence from bottom to top, the top surface of the cylinder body is provided with a sliding cavity, the rod body is slidably connected to the sliding cavity, the rod body can drive the rod body to move in a vertical direction, the bottom surface of the cylinder body is fixedly connected to the top surface of the base, and the top surface of the rod body is fixedly connected to the ring disk.

[0008] Optionally, the shell is detachably connected to the base.

[0009] Optionally, it also includes multiple connecting bolts, and the filter bin also includes a flange, which is arranged on the top surface of the base around the shell, and the flange is fixedly connected to the shell. The flange is provided with multiple upper connecting holes extending from its top surface to its bottom surface, and each of the upper connecting holes is arranged around the shell. The base is provided with multiple lower connecting holes extending from its top surface to its bottom surface, and the lower connecting holes correspond to the upper connecting holes one by one. The connecting bolts pass through the upper connecting holes and the lower connecting holes to connect the flange and the base.

[0010] Optionally, it further includes a plurality of supporting feet, wherein the supporting feet are arranged on the bottom surface of the base, the top ends of the supporting feet are connected to the base, and the plurality of supporting feet are arranged around the shell.

[0011] Optionally, a drain pipe is further included, wherein the drain pipe is inserted into the bottom surface of the base, and a tube hole of the drain pipe is connected to the filter cavity.

[0012] Optionally, it also includes a pressure component, which includes a communicating vessel, an air inlet valve, an exhaust valve and a pressure gauge, the communicating vessel is provided with an air inlet port, an exhaust port and a connecting port that are interconnected, the communicating vessel is detachably mounted on the top of the filter bin, the top of the filter bin is provided with a feed port connected to the filter cavity, the connecting port corresponds to the feed port, the air inlet valve is arranged at the air inlet port, the exhaust valve is arranged at the exhaust port, and the pressure gauge is installed on the communicating vessel to detect the air pressure of the connecting port.

[0013] Compared with the prior art, the positive pressure filter with high utilization rate in the embodiment of the utility model has the following beneficial effects:

[0014] The ring disk of the utility model is arranged around the shell and fixedly connected to the shell, so that the ring disk and the shell can move synchronously. Furthermore, a plurality of lifters are arranged around the shell on the top surface of the base, and the upper and lower ends thereof are respectively connected to the base and the ring disk. When the shell needs to be removed to replace the filter paper, the controller can control the lifters to extend upward in the vertical direction at the same time to lift the filter bin, so that after the base and the shell are separated, the positions of the shell and the base in the horizontal direction do not change, and the solution on the inner wall of the shell can be directly dripped onto the filter paper on the top surface of the base to avoid the solution dripping onto the ground. In summary, the positive pressure filter of the utility model has a high utilization rate of the solution. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of the utility model.

[0016] Figure 2 It is an exploded view of the utility model.

[0017] Figure numerals: 1. base; 2. filter chamber; 21. shell; 211. feed port; 22. ring disk; 23. connecting rod; 24. connecting piece; 25. flange; 3. lifter; 31. cylinder body; 32. rod body; 4. connecting bolt; 5. supporting foot; 6. drain pipe; 7. pressure assembly; 71. communicating vessel; 711. air inlet; 712. exhaust port; 713. communicating port; 72. air inlet valve; 73. exhaust valve; 74. pressure gauge. DETAILED DESCRIPTION

[0018] The following is a further detailed description of the specific implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0019] In the description of the present invention, it should be understood that the terms "top", "bottom", "inside", "outside", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0020] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0021] like Figure 1 and 2As shown, a positive pressure filter with high utilization rate of the utility model includes a base 1, a filter chamber 2, a controller and a plurality of lifters 3, the filter chamber 2 includes a shell 21 and a ring disk 22, the ring disk 22 is arranged around the shell 21, the ring disk 22 is fixedly connected to the shell 21, the shell 21 is covered on the top surface of the base 1, and a filter cavity is formed between the shell 21 and the base 1, a plurality of lifters 3 are arranged around the shell 21, the lifters 3 are fixedly arranged on the top surface of the base 1, the top surface of the lifters 3 is connected to the ring disk 22, the controller is connected to the lifters 3, and the controller can control each of the lifters 3 to extend and retract in the vertical direction at the same time to drive the filter chamber 2 to rise and fall.

[0022] In the above technical solution, the ring disk 22 is fixedly connected to the shell 21, so that the ring disk 22 and the shell 21 can move synchronously. Further, when the shell 21 needs to be removed to replace the filter paper, the controller can control each lifter 3 to extend upward in the vertical direction at the same time to lift the filter bin 2, so that after the base 1 and the shell 21 are separated, the positions of the shell 21 and the base 1 in the horizontal direction do not change, and the solution on the inner wall of the shell 21 can directly drip onto the filter paper on the top surface of the base 1 to prevent the solution from dripping onto the ground. In summary, the positive pressure filter of the utility model has a high utilization rate of the solution; specifically, the specific operation of replacing the filter paper is that the controller controls each lifter 3 to extend upward in the vertical direction at the same time, the lifter 3 lifts the filter bin 2, and the base 1 and the shell 21 are separated, and observe whether there is a tendency for the solution to gather and flow downward on the cavity wall in the filter bin 2. If so, wait until the solution drips off the filter paper before replacing the filter paper. If not, replace the filter paper directly, and then the controller controls each lifter 3 to shrink downward in the vertical direction until the bottom surface of the shell 21 contacts the top surface of the base 1.

[0023] Furthermore, the annular disk 22 is arranged on the outside of the shell 21 at a distance from the shell 21, so that the inner diameter of the annular disk 22 is larger than the outer diameter of the shell 21, thereby expanding the coverage of the annular disk 22 and reducing the weight of the equipment. The filter bin 2 also includes a plurality of connecting rods 23 arranged around the shell 21, and the connecting rods 23 are U-shaped. Both ends of the connecting rods 23 are connected to the outer side wall of the shell 21, and the middle part of the connecting rods 23 is connected to the annular disk 22, so that the connection strength between the connecting rods 23 and the shell 21 and the annular disk 22 is relatively high, wherein the connecting rods 23 can be steel profiles such as arc tubes and arc angle irons.

[0024] Furthermore, the filter bin 2 also includes a plurality of connecting members 24 arranged around the shell 21, the connecting member 24 includes a first extension portion extending toward the shell 21 and a second extension portion extending in a vertical direction, one end of the first extension portion is connected to the top surface of the ring disk 22, the other end of the first extension portion is connected to one end of the second extension portion, and the other end of the second extension portion is connected to the middle portion of the connecting rod 23; wherein, in an assembly formed by first welding the connecting rod 23 and the connecting member 24, the bottom surface of the first extension portion can stand on the top surface of the ring disk 22, and the two ends of the connecting rod 23 can rest against the outer side wall of the shell 21 to facilitate temporary fixation and welding.

[0025] Furthermore, the lifter 3 includes a cylinder body 31 and a rod body 32 arranged in sequence from bottom to top, the top surface of the cylinder body 31 is provided with a sliding cavity, the rod body 32 is slidably connected to the sliding cavity, the rod body 32 can drive the rod body 32 to move in a vertical direction, the bottom surface of the cylinder body 31 is fixedly connected to the top surface of the base 1, and the top surface of the rod body 32 is fixedly connected to the ring disk 22, wherein the lifter 3 can be a pneumatic cylinder, a hydraulic cylinder, an electric cylinder and a linear motor.

[0026] Furthermore, the shell 21 is detachably connected to the base 1; further, it also includes a plurality of connecting bolts 4, the filter bin 2 also includes a flange 25, the flange 25 is arranged on the top surface of the base 1 around the shell 21, the flange 25 is fixedly connected to the shell 21, the flange 25 is provided with a plurality of upper connecting holes extending from its top surface to its bottom surface, each of the upper connecting holes is arranged around the shell 21, the base 1 is provided with a plurality of lower connecting holes extending from its top surface to its bottom surface, the lower connecting holes correspond to the upper connecting holes one by one, the connecting bolts 4 pass through the upper connecting holes and the lower connecting holes to connect the flange 25 and the base 1.

[0027] Furthermore, it also includes a plurality of supporting feet 5, which are arranged on the bottom surface of the base 1, and the top ends of the supporting feet 5 are connected to the base 1. The plurality of supporting feet 5 are arranged around the shell 21 to raise the base 1 so that the bottom of the base 1 can discharge liquid at its bottom.

[0028] Furthermore, it also includes a drain pipe 6, which is inserted into the bottom surface of the base 1, and the tube hole of the drain pipe 6 is connected to the filter cavity to guide the filtered liquid to a specific container through the drain pipe 6.

[0029] Furthermore, in order to realize the functions of adding materials, adding gas to increase pressure, exhausting and reducing pressure, and observing pressure values ​​in real time, a pressure component 7 is also included, and the pressure component 7 includes a communicating vessel 71, an air inlet valve 72, an exhaust valve 73 and a pressure gauge 74. The communicating vessel 71 is provided with an air inlet 711, an exhaust port 712 and a connecting port 713 that are interconnected. The communicating vessel 71 is detachably mounted on the top of the filter bin 2. The top of the filter bin 2 is provided with a feed port 211 connected to the filter cavity, and the connecting port 713 corresponds to the feed port 211. The air inlet valve 72 is provided at the air inlet 711, and the exhaust valve 73 is provided at the exhaust port 712. The pressure gauge 74 is installed on the communicating vessel 71 to detect the air pressure of the connecting port 713.

[0030] Furthermore, the specific connection methods of the fixed setting and the fixed connection refer to the relative position relationship of the two components that can be fixedly connected, including fixing through a connector 24, fixing through welding, fixing through an adhesive, fixing through one-piece molding, and fixing through a snap connection.

[0031] Furthermore, the specific connection mode of the detachable connection refers to that the two connected parts can be repeatedly disassembled and assembled without damage or serious deformation, including fixation by a connector 24 and fixation by a snap connection.

[0032] Furthermore, the connecting member 24 includes a fastener, a strap, a tie rope, a pneumatic connecting element, a hydraulic connecting element, Velcro, and a button.

[0033] In summary, the embodiment of the utility model provides a positive pressure filter with high utilization rate, and its technical effects are:

[0034] The ring disk 22 of the utility model is arranged around the shell body 21 and is fixedly connected to the shell body 21, so that the ring disk 22 and the shell body 21 can move synchronously. Furthermore, a plurality of lifters 3 are arranged around the shell body 21 on the top surface of the base 1, and the upper and lower ends thereof are respectively connected to the base 1 and the ring disk 22. When the shell body 21 needs to be removed to replace the filter paper, the controller can control each lifter 3 to extend upward in the vertical direction at the same time to lift the filter bin 2, so that after the base 1 and the shell body 21 are separated, the positions of the shell body 21 and the base 1 in the horizontal direction do not change, and the solution on the inner wall of the shell body 21 can directly drip onto the filter paper on the top surface of the base 1 to prevent the solution from dripping onto the ground. In summary, the positive pressure filter of the utility model has a high utilization rate of the solution.

[0035] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and substitutions can be made without departing from the technical principle of the present invention. These improvements and substitutions should also be regarded as the protection scope of the present invention.

Claims

1. A positive pressure filter with high utilization rate, characterized in that: The invention comprises a base (1), a filter chamber (2), a controller and a plurality of lifters (3); the filter chamber (2) comprises a shell (21) and a ring disk (22); the ring disk (22) is arranged around the shell (21); the ring disk (22) is fixedly connected to the shell (21); the shell (21) is covered on the top surface of the base (1); a filter chamber is formed between the shell (21) and the base (1); a plurality of lifters (3) are arranged around the shell (21); the lifters (3) are fixedly arranged on the top surface of the base (1); the top surfaces of the lifters (3) are connected to the ring disk (22); the controller is connected to the lifters (3); the controller can control each lifter (3) to simultaneously extend and retract in the vertical direction, so as to drive the filter chamber (2) to rise and fall.

2. The positive pressure filter with high utilization rate according to claim 1, characterized in that: The annular disk (22) is arranged at the outer side of the shell (21) at a distance from the shell (21); the filter chamber (2) further comprises a plurality of connecting rods (23) arranged around the shell (21); the connecting rods (23) are U-shaped; both ends of the connecting rods (23) are connected to the outer side wall of the shell (21); and the middle part of the connecting rods (23) is connected to the annular disk (22).

3. The positive pressure filter with high utilization rate according to claim 2, characterized in that: The filter bin (2) further comprises a plurality of connecting members (24) arranged around the shell (21), the connecting member (24) comprising a first extension portion extending in the direction of the shell (21) and a second extension portion extending in the vertical direction, one end of the first extension portion being connected to the top surface of the annular disk (22), the other end of the first extension portion being connected to one end of the second extension portion, and the other end of the second extension portion being connected to the middle portion of the connecting rod (23).

4. The positive pressure filter with high utilization rate according to claim 1, characterized in that: The lifter (3) comprises a cylinder body (31) and a rod body (32) which are arranged in sequence from bottom to top, the top surface of the cylinder body (31) is provided with a sliding cavity, the rod body (32) is slidably connected to the sliding cavity, and the rod body (32) can drive the rod body (32) to move in a vertical direction, the bottom surface of the cylinder body (31) is fixedly connected to the top surface of the base (1), and the top surface of the rod body (32) is fixedly connected to the ring disk (22).

5. The positive pressure filter with high utilization rate according to claim 1, characterized in that: The shell (21) is detachably connected to the base (1).

6. The positive pressure filter with high utilization rate according to claim 5, characterized in that: The filter bin (2) further comprises a plurality of connecting bolts (4). The filter bin (2) further comprises a flange (25). The flange (25) is arranged on the top surface of the base (1) around the shell (21). The flange (25) is fixedly connected to the shell (21). The flange (25) is provided with a plurality of upper connecting holes extending from the top surface to the bottom surface. Each of the upper connecting holes is arranged around the shell (21). The base (1) is provided with a plurality of lower connecting holes extending from the top surface to the bottom surface. The lower connecting holes correspond to the upper connecting holes one by one. The connecting bolts (4) pass through the upper connecting holes and the lower connecting holes to connect the flange (25) and the base (1).

7. The positive pressure filter with high utilization rate according to claim 1, characterized in that: It also comprises a plurality of supporting feet (5), wherein the supporting feet (5) are arranged on the bottom surface of the base (1), the top ends of the supporting feet (5) are connected to the base (1), and the plurality of supporting feet (5) are arranged around the shell (21).

8. The positive pressure filter with high utilization rate according to claim 1, characterized in that: It also comprises a drainage pipe (6), wherein the drainage pipe (6) is inserted into the bottom surface of the base (1), and the pipe hole of the drainage pipe (6) is connected to the filter cavity.

9. The positive pressure filter with high utilization rate according to claim 1, characterized in that: The invention also comprises a pressure assembly (7), wherein the pressure assembly (7) comprises a communicating vessel (71), an air inlet valve (72), an air outlet valve (73) and a pressure gauge (74); the communicating vessel (71) is provided with an air inlet (711), an air outlet (712) and a connecting port (713) which are interconnected; the communicating vessel (71) is detachably mounted on the top of the filter chamber (2); the top of the filter chamber (2) is provided with an inlet (211) which is connected to the filter chamber; the connecting port (713) corresponds to the inlet (211); the air inlet valve (72) is arranged at the inlet (711); the air outlet valve (73) is arranged at the air outlet (712); and the pressure gauge (74) is mounted on the communicating vessel (71) to detect the air pressure of the connecting port (713).

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