Vacuum filter with automatic cleaning function

Abstract

The utility model discloses a vacuum filter with an automatic cleaning function, which mainly comprises a filter cylinder, a filter cover and a filter screen positioned in the filter cylinder, the filter cylinder mainly comprises an inlet, an outlet, support legs and a drain outlet, and the filter screen is arranged in the filter cylinder through a filter screen mounting plate. The filter screen fixing plate and the filter screen divide the interior of the filter cylinder into an upper part and a lower part, the outlet is formed in the upper part of the filter screen fixing plate, the inlet and the drain outlet are formed in the lower part of the filter screen fixing plate, and a settlement ring is further arranged in the filter cylinder and right faces the inlet; a plurality of cleaning nozzles are arranged on the filter cover, right face the filter screen and are connected with an air compressor through an air pipe, a pulse electromagnetic valve is arranged on the air compressor, and an automatic control valve is arranged on the air pipe. According to the utility model, water vapor in vacuumized air can be separated firstly through the settling ring, so that dust in the air is mainly filtered by the filter screen, and the service life of the filter screen is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of vacuum filters, in particular to a vacuum filter with an automatic cleaning function. Background Art

[0002] The vacuum filters currently on the market have inlets, outlets and sewage outlets, with a filter in the middle. The water vapor and dust in the vacuum process are filtered through the filter to ensure that the gas entering the vacuum pump is clean, thereby protecting the safety of the vacuum pump and extending the service life of the vacuum pump.

[0003] The products currently on the market are unable to quickly separate water vapor, causing water vapor and dust to adhere to the filter, reducing the filtration efficiency and requiring the filter to be frequently opened and cleaned; however, the filter cannot be cleaned automatically and the equipment needs to be suspended when it is opened for cleaning, affecting the continuous stability of the equipment operation.

[0004] Moreover, the filter only has a filter mesh for filtration, and no water vapor separation structure. This results in both water vapor and dust being filtered through the filter mesh. Water vapor and dust will adhere to the surface of the filter mesh, resulting in reduced filtration efficiency, which in turn results in reduced vacuum efficiency and affects work efficiency. As a result, the filter needs to be opened frequently for cleaning or the filter mesh needs to be replaced. The replacement process requires the equipment to be suspended, which affects the continuous stability of work. Utility Model Content

[0005] The utility model aims to provide a vacuum filter with automatic cleaning function in view of the defects and shortcomings of the prior art.

[0006] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a vacuum filter with automatic cleaning function, mainly composed of a filter cartridge, a filter cover and a filter screen located inside the filter cartridge, the filter cartridge mainly includes an inlet, an outlet, a support leg and a sewage outlet, and its innovation lies in: the filter screen is arranged inside the filter cartridge through a filter screen mounting plate, and the filter screen fixing plate and the filter screen divide the inside of the filter cartridge into two parts, the outlet is at the upper part of the filter screen fixing plate, the inlet and the sewage outlet are at the lower part of the filter screen fixing plate, a sedimentation circle is also arranged inside the filter cartridge, and the sedimentation circle is facing the inlet; a plurality of cleaning nozzles are arranged on the filter cover, the cleaning nozzles are facing the filter screen, the cleaning nozzles are connected to a compressed air machine through an air pipe, a pulse solenoid valve is arranged on the compressed air machine, and an automatic control valve is arranged on the air pipe.

[0007] Furthermore, a sealing material is provided between the filter cartridge and the filter cover.

[0008] Furthermore, the inlet is provided with an automatic feed control valve, the outlet is provided with an automatic discharge control valve, and the sewage outlet is provided with a sewage discharge control valve.

[0009] After adopting the above structure, the utility model has the following beneficial effects:

[0010] 1. The utility model can separate the water vapor in the vacuumed air by setting a settling circle, so that the dust in the air is mainly filtered through the filter, thereby extending the service life of the filter;

[0011] 2. The utility model can realize automatic cleaning of the filter screen during the production process by setting up a compressed air machine and a pulse solenoid valve, thereby ensuring continuous and stable production and creating value for customers;

[0012] 3. The utility model can realize automatic maintenance and cleaning of equipment, eliminate manual labor, reduce labor costs, take into account gas-water separation, extend the service life of the filter cartridge, and ensure continuous and stable production. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the structure of the utility model;

[0014] Figure 2 It is a schematic diagram of the internal structure of the utility model;

[0015] Figure 3 It is a schematic diagram of the connection relationship between the filter cartridge and the filter cover in the utility model.

[0016] Description of reference numerals:

[0017] 1 filter cartridge, 1-1 inlet, 1-2 outlet, 1-3 legs, 1-4 sewage outlet, 2 filter cover, 3 filter screen, 4 filter screen fixing plate, 5 sedimentation circle, 6 cleaning nozzle, 7 compressed air machine, 8 pulse solenoid valve, 9 automatic control valve, 10 sealing material, 11 feed automatic control valve, 12 discharge automatic control valve, 13 sewage control valve. DETAILED DESCRIPTION

[0018] The utility model is further described below in conjunction with the accompanying drawings.

[0019] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods. It should be understood that the specific implementation methods described here are only used to explain the utility model and are not used to limit the utility model.

[0020] See also Figure 1-2, a vacuum filter with automatic cleaning function, mainly composed of a filter cartridge 1, a filter cover 2 and a filter screen 3 located inside the filter cartridge, the filter cartridge 1 mainly includes an inlet 1-1, an outlet 1-2, legs 1-3 and a sewage outlet 1-4, the filter screen 3 is arranged inside the filter cartridge 1 through a filter screen mounting plate 4, and the filter screen fixing plate 4 and the filter screen 3 divide the inside of the filter cartridge 1 into two parts, an upper and a lower part, the outlet 12 is at the upper part of the filter screen fixing plate, the inlet 11 and the sewage outlet 14 are at the lower part of the filter screen fixing plate, a sedimentation circle 5 is also arranged inside the filter cartridge 1, and the sedimentation circle 5 is facing the inlet 11; a plurality of cleaning nozzles 6 are arranged on the filter cover 2, the cleaning nozzles 6 are facing the filter screen 3, the cleaning nozzles 6 are connected to a compressed air machine 7 through an air pipe, a pulse solenoid valve 8 is arranged on the compressed air machine 7, and an automatic control valve 9 is arranged on the air pipe. Specifically, the inlet 1-1 is located on the side of the cylinder wall of the filter, and the inlet 1-1 is facing the internal sedimentation circle 5. After the air containing water vapor enters the filter from the inlet, it first contacts the sedimentation circle. Under the action of the sedimentation circle, the water vapor is separated from the air and gathered at the sewage outlet 1-4. Then the air containing dust rotates and rises to be filtered through the filter 3, so that the air reaching the vacuum pump is clean air without dust and water vapor, thereby protecting the vacuum pump and extending the service life of the vacuum pump; the cleaning nozzle 6 is facing the filter 3 inside the filter, and the compressed air passes through the air pipe, through the pulse solenoid valve 8 and the automatic control valve 9, and then enters the filter through the cleaning nozzle 6, thereby cleaning the filter 3; the pulse solenoid valve 8 causes the compressed air to produce a pulse air wave, and the cleaning effect is better.

[0021] See also Figure 3 A sealing material 10 is provided between the filter cartridge 1 and the filter cover 2. The sealing material 10 improves the sealing performance and can ensure that the filter maintains a vacuum state during the vacuuming process; the sealing material 10 can be a sealing ring.

[0022] In this embodiment, the inlet is provided with an automatic feed control valve 11, the outlet is provided with an automatic discharge control valve 12, and the discharge outlet is provided with a sewage discharge control valve 13. The automatic feed control valve 11, the automatic discharge control valve 12 and the sewage discharge control valve 13 are controlled by a PLC system, which can realize automatic feeding, automatic discharge and automatic sewage discharge, and realize automatic operation of the equipment.

[0023] The working principle of this utility model:

[0024] During normal operation, after the vacuum pump is turned on, air containing water vapor and dust enters the vacuum filter from the inlet 1-1. Under the action of the sedimentation circle 5, the water vapor is separated and collected at the sewage outlet 1-4. The air containing dust rotates and rises, and after filtering the dust through the filter 3, the clean air that does not contain water vapor and dust is discharged from the outlet 1-2 and enters the vacuum pump, thereby protecting the vacuum pump and extending the service life of the vacuum pump. When the filter 3 needs to be cleaned, the feed automatic control valve 11 and the discharge automatic control valve 12 are closed, the sewage control valve 13 is opened, the automatic control valve 9 and the pulse electromagnetic valve 8 on the air path are opened, and the compressed air passes through the air pipe, through the pulse electromagnetic valve 8 and the automatic control valve 9, and then through the cleaning nozzle 6 into the filter, thereby cleaning the filter 3; after cleaning, the pulse electromagnetic valve 8 and the automatic control valve 9 are closed, and then the sewage control valve 13 is closed, and finally the feed automatic control valve 11 and the discharge automatic control valve 12 are opened, and the vacuum filter can continue to work continuously.

[0025] The above description is only used to illustrate the technical solution of the utility model rather than to limit it. Other modifications or equivalent substitutions made to the technical solution of the utility model by ordinary technicians in this field should be included in the scope of the claims of the utility model as long as they do not depart from the spirit and scope of the technical solution of the utility model.

Claims

1. A vacuum filter with automatic cleaning function, mainly composed of a filter cartridge, a filter cover and a filter screen located inside the filter cartridge, wherein the filter cartridge mainly includes an inlet, an outlet, a leg and a sewage outlet, and is characterized in that: The filter is arranged inside the filter cartridge through a filter mounting plate, and the filter fixing plate and the filter divide the inside of the filter cartridge into two parts, an upper part and an lower part, the outlet is at the upper part of the filter fixing plate, the inlet and the sewage outlet are at the lower part of the filter fixing plate, a sedimentation circle is also arranged inside the filter cartridge, and the sedimentation circle is facing the inlet; a plurality of cleaning nozzles are arranged on the filter cover, and the cleaning nozzles are facing the filter, and the cleaning nozzles are connected to a compressed air machine through an air pipe, a pulse solenoid valve is arranged on the compressed air machine, and an automatic control valve is arranged on the air pipe.

2. A vacuum filter with automatic cleaning function according to claim 1, characterized in that: A sealing material is disposed between the filter cartridge and the filter cover.

3. A vacuum filter with automatic cleaning function according to claim 1, characterized in that: The inlet is provided with an automatic feed control valve, the outlet is provided with an automatic discharge control valve, and the sewage outlet is provided with a sewage discharge control valve.

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