A vacuum filtration device

Abstract

This utility model discloses a vacuum filtration device, including a base, a filter membrane support rotatably mounted on the base, and a filter membrane support including a filter membrane for filtering wastewater; a drive assembly disposed between the base and the filter membrane support for driving the filter membrane support to rotate and tilt. This utility model solves the problem of filter membrane clogging in existing vacuum filtration devices, which affects the flow rate of the filtrate and filtration efficiency. By setting the drive assembly, the filter membrane support is tilted at a certain angle, thus tilting the filter membrane. Solid particles accumulate on the lower part of the tilted area of ​​the filter membrane, reducing clogging, accelerating the flow rate of the filtrate, and improving filtration efficiency. After filtration, the drive assembly can drive the filter membrane support to return to its original position, placing the filter membrane support horizontally. This facilitates subsequent processing of the filtered solids and allows for easy removal and cleaning of the filter membrane.

Description

Technical Field

[0001] This utility model relates to the field of vacuum filtration technology, and specifically to a vacuum filtration device. Background Technology

[0002] Vacuum filtration devices are commonly used solid-liquid separation equipment in laboratories and are widely used in fields such as chemistry, biology, and environmental science. Vacuum filtration is a method of accelerating water filtration by using negative pressure created by air extraction. It is a highly efficient water filtration method and is frequently used in municipal water quality testing to improve the efficiency of water quality monitoring. However, existing wastewater vacuum filtration devices still have shortcomings in use. During operation, the filter element is close to the outlet at the bottom of the filter tank. During the water discharge process, the filter element is sucked into the outlet, making it difficult to remove. Furthermore, different filter elements are used to filter wastewater of different qualities, and changing the filter element wastes time and is inconvenient to operate.

[0003] To address the aforementioned problems, Chinese Patent (Publication No.: CN212790070U) discloses a vacuum filtration device, comprising a water tank, a second conduit mounted on the top of the water tank, a filter barrel mounted on the top of the second conduit, a funnel mounted on the top of the filter barrel, a third conduit mounted on the bottom of the water tank, a drain pipe mounted on one end of the third conduit, a first solenoid valve mounted on the third conduit, a first conduit mounted on one side of the water tank, a switch mounted on the top of the vacuum pump, and an installation plate with an installation groove inside the filter barrel.

[0004] The above solution uses an installation tray to house the filter element, preventing it from being sucked into the outlet. In actual use, filter elements or membranes are used to filter solids from wastewater. If the membrane is placed horizontally, and there are too many impurities in the wastewater, the membrane is prone to clogging during filtration, resulting in slow filtrate flow and low filtration efficiency. Utility Model Content

[0005] The technical problem to be solved by this utility model is that the filter membrane in the existing vacuum filtration device is prone to clogging, resulting in slow filtrate flow and low filtration efficiency. The purpose is to provide a vacuum filtration device to solve the problem of easy clogging of the filter membrane in the existing vacuum filtration device, which affects the filtrate flow rate and filtration efficiency.

[0006] This utility model is achieved through the following technical solution:

[0007] A vacuum filtration device, comprising:

[0008] Base

[0009] A filter membrane holder is rotatably mounted on a base, the filter membrane holder including a filter membrane for filtering wastewater;

[0010] The drive assembly, located between the base and the filter membrane holder, is used to drive the filter membrane holder to rotate and tilt.

[0011] As one of the preferred technical solutions, the driving component includes a telescopic rod and a slider. The slider is slidably arranged on the base, and the telescopic rod is rotatably installed between the filter membrane support and the slider to drive the filter membrane support to tilt.

[0012] As one of the preferred technical solutions, in order to store the telescopic rod, the base is provided with a drive groove at the top, and the slider is slidably arranged in the drive groove.

[0013] As one of the preferred technical solutions, in order to ensure the directional sliding of the slider, the drive groove is provided with a transverse slide rail for the slider to slide.

[0014] As one of the preferred technical solutions, the tilt angle of the filter membrane support is 10-15°.

[0015] As one of the preferred technical solutions, the filter membrane support includes multiple filter cylinders, and multiple filter membranes are provided. The multiple filter membranes are respectively installed in each of the filter cylinders, and the multiple filter membranes have different pore sizes.

[0016] As one of the preferred technical solutions, the filter membrane support also includes a drain pipe disposed below the filter cylinder, and an exhaust valve is provided on the drain pipe.

[0017] As one of the preferred technical solutions, the filter membrane support also includes a drainage channel connected to the drainage pipe, and the drainage channel is connected to a waste liquid collection bottle; the base is also provided with a fixing component for fixing the waste liquid collection bottle.

[0018] As one of the preferred technical solutions, the fixing member includes a support rod and an elastic arc-shaped clamp, the elastic arc-shaped clamp being disposed on the support rod.

[0019] As one of the preferred technical solutions, the base is also provided with a limiting groove that cooperates with the waste liquid collection bottle.

[0020] Compared with the prior art, this utility model has the following advantages and beneficial effects:

[0021] 1. By setting up a drive component, the filter membrane support is tilted at a certain angle, thereby tilting the filter membrane. Solid particles accumulate on the lower part of the filter membrane along the tilt, reducing clogging, accelerating the flow rate of the filtrate, and improving filtration efficiency.

[0022] 2. After filtration is completed, the drive component can drive the filter membrane support to reset. The filter membrane support is placed horizontally, which makes it convenient for staff to perform subsequent processing on the filtered solid matter, and also makes it convenient for staff to remove the filter membrane for cleaning and other operations. Attached Figure Description

[0023] The accompanying drawings, which are included to provide a further understanding of the embodiments of the present invention and form part of this application, do not constitute a limitation thereof. In the drawings:

[0024] Figure 1 This is a schematic diagram of the structure of an embodiment of the present utility model;

[0025] Figure 2 This is a schematic diagram of the filter membrane support of this utility model when laid flat.

[0026] Figure 3 This is a schematic diagram of the structure of the base of this utility model.

[0027] The attached diagram shows the markings and corresponding component names:

[0028] 1-Base, 2-Filter membrane support, 21-Filter cartridge, 22-Filter membrane, 23-Drain pipe, 24-Drain channel, 3-Drive assembly, 31-Telescopic rod, 32-Slider, 4-Drive groove, 5-Horizontal slide rail, 6-Waste liquid collection bottle, 7-Vacuum pump, 8-Exhaust valve, 9-Fixing component, 91-Support rod, 92-Elastic arc-shaped clamp, 10-Limit groove. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the embodiments and accompanying drawings. The illustrative embodiments and descriptions of this utility model are only used to explain this utility model and are not intended to limit this utility model.

[0030] Example 1

[0031] In existing technologies, vacuum filtration devices are experimental or industrial equipment that accelerates the passage of liquid through a filter medium under negative pressure to achieve solid-liquid separation. Their core purpose is to efficiently and rapidly separate solid particles from liquids, while simultaneously meeting specific experimental or production needs. In practical applications, filter cartridges or membranes are used to filter solid substances from wastewater. If the filter membrane is placed horizontally, and there are too many impurities in the wastewater, the membrane or cartridge is prone to clogging during filtration, resulting in slow filtrate flow and reduced filtration efficiency.

[0032] To address the aforementioned problems, this embodiment 1 provides a vacuum filtration device, such as... Figures 1-2 As shown, it includes:

[0033] Base 1,

[0034] A filter membrane support 2 is rotatably mounted on a base 1. The filter membrane support 2 includes a filter membrane 22 for filtering wastewater.

[0035] The drive component 3 is located between the base 1 and the filter membrane holder 2 and is used to drive the filter membrane holder 2 to rotate and tilt.

[0036] The base 1 provides a support platform for the filter membrane holder 2 and the drive assembly 3. The filter membrane holder 2 rotates on the base 1. Specifically, the rotation point is located at one end of the filter membrane holder 2, so that when the filter membrane holder 2 rotates, it can tilt to a certain extent and form a corresponding angle with the base 1.

[0037] The drive assembly 3 is mounted on the base 1 and drives the filter membrane support 2 to tilt at a certain angle, thereby tilting the filter membrane 22 inside the filter membrane support 2. When wastewater is poured out, solid matter will remain on the filter membrane 22. However, under the action of gravity, the solid matter will automatically slide off and accumulate at the lower tilted end of the filter membrane 22, thus ensuring that other parts of the filter membrane 22 will not be blocked, facilitating wastewater filtration. This, in turn, can accelerate the flow rate of the filtrate and improve the filtration speed.

[0038] In addition, after filtration is completed, the drive component 3 can drive the filter membrane support 2 to reset. The filter membrane support 2 is placed horizontally, which makes it convenient for staff to perform subsequent processing on the filtered solid matter, and also makes it convenient for staff to remove the filter membrane 22 for cleaning and other operations.

[0039] Furthermore, the tilt angle of the filter membrane support 2 is 10-15°. Specifically, the tilt angle of the filter membrane support 2 should be set reasonably. If the tilt angle of the filter membrane support 2 is too large, the solid material will slide down to the lower end of the tilt faster and the space that can accommodate the solid material will be smaller. During the filtration process, the solid material may flow out of the filter membrane support 2 and contaminate the base 1. Therefore, controlling the tilt of the filter membrane support 2 within a certain range ensures filtration efficiency while increasing safety.

[0040] Furthermore, such as Figure 1 and Figure 2 As shown, the driving component 3 includes a telescopic rod 31 and a slider 32. The slider 32 is slidably arranged on the base 1. The telescopic rod 31 is rotatably installed between the filter membrane support 2 and the slider 32 to drive the filter membrane support 2 to tilt.

[0041] Specifically, in this embodiment, the telescopic rod 31 is an electrically operated telescopic rod 31, which can automatically extend or retract. The working process of the drive component 3 is as follows: the telescopic rod 31 is activated to extend, and the telescopic rod 31 contacts the filter membrane support 2. As the telescopic rod 31 extends, the slider 32 slides and applies force to the filter membrane support 2, causing one end of the filter membrane support 2 to lift and tilt. At this time, the telescopic rod 31, the filter membrane support 2, and the base 1 form a triangular connection. When the telescopic rod 31 stops extending, the filter membrane support 2 is fixed in the tilted state.

[0042] When the telescopic rod 31 is activated, it retracts gradually, causing the slider 32 to slide accordingly. The telescopic rod 31 then drives the filter membrane support 2 to descend and gradually return to its original position, eventually bringing the filter membrane support 2 to a horizontal state.

[0043] The base 1 has a drive groove 4 on its top, and the slider 32 is slidably arranged in the drive groove 4. It can be seen that the drive groove 4 provides a space for the slider 32 and the telescopic rod 31, so that when the drive assembly 3 is retracted, the filter membrane support 2 is in a horizontal position; at the same time, it ensures the cleanliness of the base 1 surface and provides a certain degree of protection for the telescopic rod 31 and the slider.

[0044] In addition, the drive groove 4 is provided with a transverse slide rail 5 for the slider 32 to slide. By setting the transverse slide rail 5, the slider 32 slides in a directional manner along the arrangement direction of the transverse slide rail 5, ensuring the normal operation of the telescopic rod 31.

[0045] Furthermore, unlike the prior art, this embodiment filters wastewater by setting a filter membrane support 2. The filter membrane support 2 includes multiple filter cylinders 21, and multiple filter membranes 22 are provided. The multiple filter membranes 22 are respectively installed in each filter cylinder 21, and the multiple filter membranes 22 have different pore sizes.

[0046] In existing technologies, to filter wastewater of different qualities and save time on filter cartridge replacement, a water tank is used to rinse the filter cartridge, allowing for the treatment of different wastewater at different times. However, this approach inevitably involves only a single filter cartridge, and the cartridge must be cleaned before reused when treating different wastewater qualities.

[0047] Based on this, this embodiment sets up multiple filter cylinders 21 and multiple filter membranes 22 with different pore sizes. On the one hand, filter membranes 22 with different pore sizes can process different sewage samples. On the other hand, the setting of multiple filter cylinders 21 and filter membranes 22 can facilitate the operation of multiple different sewage samples by staff at the same time, thereby improving the work efficiency of staff.

[0048] Example 2

[0049] In this embodiment, the vacuum filtration device includes a filter membrane support 2, a waste liquid collection bottle 6, and a vacuum pump 7. The waste liquid collection bottle 6 is connected to the vacuum pump 7 and the filter membrane support 2. The vacuum pump 7 creates negative pressure in the waste liquid collection bottle 6 to quickly separate the wastewater inside the filter membrane support 2. However, the operator simply places the waste liquid collection bottle 6 on the experimental table, while the waste liquid collection bottle 6 needs to be connected to the filter membrane support 2 and the vacuum pump 7 through pipes. If the operator accidentally bumps the waste liquid collection bottle 6, the connecting pipes may become loose, affecting the normal operation of the filtration process.

[0050] Based on Embodiment 1, this embodiment is further configured such that: the filter membrane support 2 also includes a drainage channel 24 connected to the drainage pipe 23, and the drainage channel 24 is connected to a waste liquid collection bottle 6; the base 1 is also provided with a fixing member 9 for fixing the waste liquid collection bottle 6.

[0051] Specifically, such as Figure 3 As shown, the fixing member 9 includes a support rod 91 and an elastic arc-shaped clip 92, the elastic arc-shaped clip 92 being disposed on the support rod 91. The support rod 91 is used to hold the elastic arc-shaped clip 92, which cooperates with the waste liquid collection bottle 6 to limit the position of the waste liquid collection bottle 6.

[0052] Furthermore, the base 1 is also provided with a limiting groove 10 that cooperates with the waste liquid collection bottle 6. The limiting groove 10 limits the waste liquid collection bottle 6, and with the use of the elastic arc-shaped clip 92, it can stably fix the waste liquid collection bottle 6 on the base 1, providing a certain degree of protection for the waste liquid collection bottle 6.

[0053] Furthermore, the filter membrane support 2 also includes a drain pipe 23 disposed below the filter cartridge 21, and an exhaust valve 8 is provided on the drain pipe 23. The exhaust valve 8, located on the drain pipe 23, primarily functions to release gas and prevent liquid leakage. It also works in conjunction with the vacuum pump 7 to maintain a vacuum in the waste liquid collection bottle 6, shortening the pumping time and accelerating solid-liquid separation efficiency.

[0054] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of this utility model. It should be understood that the above description is only a specific embodiment of this utility model and is not intended to limit the scope of protection of this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the scope of protection of this utility model.

Claims

1. A vacuum filtration apparatus, characterized by, include: Base A filter membrane holder is rotatably mounted on a base, the filter membrane holder including a filter membrane for filtering wastewater; The drive assembly, located between the base and the filter membrane holder, is used to drive the filter membrane holder to rotate and tilt.

2. The vacuum filtration device according to claim 1, characterized in that, The drive assembly includes a telescopic rod and a slider. The slider is slidably arranged on the base, and the telescopic rod is rotatably mounted between the filter membrane holder and the slider to drive the filter membrane holder to tilt.

3. The vacuum filtration device according to claim 2, characterized in that, The base has a drive groove on its top, and the slider is slidably arranged in the drive groove.

4. The vacuum filtration device according to claim 3, characterized in that, The drive slot is provided with a transverse slide rail for the slider to slide.

5. The vacuum filtration apparatus according to any one of claims 1-4, characterized in that, The tilt angle of the filter membrane support is 10-15°.

6. The vacuum filtration device according to claim 1, characterized in that, The filter membrane support includes multiple filter cylinders, and multiple filter membranes are provided. The multiple filter membranes are respectively installed in each of the filter cylinders, and the multiple filter membranes have different pore sizes.

7. The vacuum filtration device according to claim 1, characterized in that, The filter membrane support also includes a drain pipe located below the filter cylinder, and an exhaust valve is provided on the drain pipe.

8. The vacuum filtration device according to claim 1, characterized in that, The filter membrane support also includes a drainage channel connected to the drainage pipe, and the drainage channel is connected to a waste liquid collection bottle; the base is also provided with a fixing component for fixing the waste liquid collection bottle.

9. The vacuum filtration apparatus according to claim 8, characterized in that, The fastener includes a support rod and an elastic arc-shaped clip, the elastic arc-shaped clip being mounted on the support rod.

10. The vacuum filtration apparatus according to claim 8, characterized in that, The base is also provided with a limiting groove that cooperates with the waste liquid collection bottle.

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