Filtering device and vacuum pump set

Abstract

The utility model relates to the technical field of filtering, in particular to a filtering device and a vacuum pump set, which comprise an outer cylinder, a blow-off pipe is arranged on the left side of the bottom end wall of the outer cylinder, an exhaust pipe is arranged on the left side wall of the outer cylinder, and a connecting rod is fixedly connected to the inner wall of the right side of the outer cylinder. One end of an air inlet pipe is arranged at the top end of the outer wall of the connecting rod, the other end of the air inlet pipe extends out of the outer cylinder, an inner cylinder is arranged on the end wall of the left side of the connecting rod, one end of a liquid inlet pipe is arranged on the outer wall of the inner cylinder, the other end of the liquid inlet pipe extends out of the outer cylinder, and a plurality of connecting plates are arranged on the inner wall of the inner cylinder; and water spraying holes are formed in the inner side wall surface of the connecting plate. The utility model effectively solves the problem of air pollution caused by oil mist in the exhaust gas of the mechanical pump in the existing hard alloy sintering, can prevent the exhaust gas containing the oil mist from being directly discharged into the air through a unique filtering and cleaning mechanism, reduces the pollution to the environment, and is favorable for improving the air quality.

Description

Technical Field

[0001] The utility model relates to the technical field of filtration, in particular to a filtration device and a vacuum pump group. Background Art

[0002] The sintering of cemented carbide is a key process in cemented carbide production and plays a decisive role in the final quality of the product. Among them, the sintering of cemented carbide is mainly achieved by a sintering furnace.

[0003] Sintering furnaces all have vacuum systems, which are composed of mechanical pumps, Roots pumps, vacuum tubes, and valves. The mechanical pump is the main equipment for vacuuming. During the operation of the mechanical pump, the exhaust gas containing oil mist is discharged from the exhaust pipe of the mechanical pump. Since the exhaust gas contains oil mist, it will pollute the air.

[0004] Therefore, based on the existing technology, how to prevent the gas discharged by the mechanical pump from polluting the air is an urgent problem to be solved by those skilled in the art. Utility Model Content

[0005] In order to solve the above problems, the utility model designs a filtering device and a vacuum pump group.

[0006] In order to achieve the above technical objectives and the above technical effects, the present invention is implemented through the following technical solutions:

[0007] The top of described outer cylinder is provided with an air inlet pipe, and the other end of described outer cylinder is extended outward from outer cylinder, and the other end of described outer cylinder is extended outward from outer cylinder, and the filter bag is provided with a filter.

[0008] Furthermore, the liquid inlet pipe, the inner cylinder, the connecting plate and the water spray hole are connected.

[0009] Furthermore, the through holes are arranged on the right inner wall of the filter cartridge with circumferential gaps.

[0010] Furthermore, the outer ring of the bearing is fixedly connected to the inner wall of the filter cartridge via a bearing seat, and the inner ring of the bearing is connected to the outer wall of the round rod by interference fit.

[0011] Furthermore, the outer wall of the round rod passes through the connecting rod and is disconnected from the inner wall of the connecting rod.

[0012] The beneficial effects of the utility model are:

[0013] The utility model effectively solves the problem of oil mist in the exhaust of mechanical pumps in existing cemented carbide sintering polluting the air. Through a unique filtering and cleaning mechanism, it can prevent the exhaust gas containing oil mist from being directly discharged into the air, reducing pollution to the environment, and is conducive to improving air quality, meeting environmental protection requirements, protecting the ecological environment, and meeting the current urgent demand for green and environmental protection in industrial production.

[0014] The centrifugal force generated by the high-speed rotation of the mixed gas in the filter cartridge is used to separate the oil mist from the mixed gas and form an oil film on the inner wall of the filter cartridge, thus achieving effective separation of the mixed gas containing oil mist. This method can efficiently remove the oil mist component in the mixed gas, making the discharged gas cleaner, ensuring the exhaust quality, and helping to improve the cleanliness and safety of the production environment;

[0015] By spraying pressurized cleaning fluid onto the outer wall of the filter cartridge, the filter cartridge that forms an oil film after absorbing oil mist can be easily cleaned. This cleaning method is simple and easy, and can promptly remove oil stains on the filter cartridge, ensuring that the filter cartridge continues to work effectively, maintaining the stable operation of the entire gas purification system, and reducing equipment failures and performance degradation caused by oil accumulation. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. 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 creative work.

[0017] Figure 1 This is a schematic diagram of the structure of the utility model;

[0018] Figure 2 This is a side view of the inner cylinder of the present utility model;

[0019] Figure 3 It is a side view of the connecting rod of the present utility model.

[0020] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0021] 1. Outer cylinder, 2. Drain pipe, 3. Exhaust pipe, 4. Connecting rod, 5. Inlet pipe, 6. Inner cylinder, 7. Liquid inlet pipe, 8. Connecting plate, 9. Filter cartridge, 10. Through hole, 11. Round rod, 12. Round plate, 13. Blades, 14. Motor. DETAILED DESCRIPTION

[0022] The following will be combined with the accompanying 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 embodiments described 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 making creative efforts are within the scope of protection of the present invention.

[0023] See Figure 1-3 As shown, a filtering device and a vacuum pump assembly include an outer cylinder 1, a sewage pipe 2 is provided on the left side of the bottom end wall of the outer cylinder 1, an exhaust pipe 3 is provided on the left side wall of the outer cylinder 1, a connecting rod 4 is fixedly connected to the right inner wall of the outer cylinder 1, and one end of an air inlet pipe 5 is provided on the top of the outer wall of the connecting rod 4, and the other end of the air inlet pipe 5 extends out of the outer cylinder 1, an inner cylinder 6 is provided on the left end wall of the connecting rod 4, one end of a liquid inlet pipe 7 is provided on the outer wall of the inner cylinder 6, and the other end of the liquid inlet pipe 7 extends out of the outer cylinder 1, and a plurality of connecting plates 8 are provided on the inner wall of the inner cylinder 6, and the inner wall of the connecting plate 8 A water spray hole is provided on the side wall, a filter cartridge 9 is provided on the right inner wall of the inner cylinder 6, a plurality of through holes 10 are provided between the filter cartridge 9 and the inner cavity of the connecting rod 4, the right inner wall of the filter cartridge 9 is rotatably connected to a round rod 11 through a bearing, a round plate 12 is interference fit connected to the outer wall of the round rod 11, a plurality of blades 13 are provided between the outer walls of the round rod 11 and the round plate 12, a motor 14 is provided on the right side wall of the outer cylinder 1, and the output end of the motor 14 is fixedly connected to the right end of the round rod 11 through a coupling, the outer wall of the round rod 11 passes through the connecting rod 4 and is disconnected from the inner wall of the connecting rod 4.

[0024] Furthermore, the liquid inlet pipe 7, the inner cylinder 6, the connecting plate 8 and the water spray hole are connected, and the pressurized cleaning liquid is injected into the inner cylinder 6 and the connecting plate 8 through the liquid inlet pipe 7, and sprayed out through the water spray hole to the outer wall of the filter cylinder 9, thereby cleaning the oil film on the inner wall of the filter cylinder 9.

[0025] Furthermore, the through holes 10 are arranged in a circumferential gap on the right inner wall of the filter cartridge 9 , and the mixed gas is transported into the connecting rod 4 through the air inlet pipe 5 , and conveniently enters the filter cartridge 9 through the through holes 10 .

[0026] Furthermore, the outer ring of the bearing is fixedly connected to the inner wall of the filter cylinder 9 through the bearing seat, and the inner ring of the bearing is connected to the outer wall of the round rod 11 by interference fit, and the bearing fixes the round rod 11, making it convenient for the round rod 11 to rotate through the bearing.

[0027] According to the personnel in this field, all electrical components and parts in this case are universal standard parts or parts known to technical personnel in this field. Their structures and principles can be known to technical personnel through technical manuals or through conventional experimental methods. The models are compatible with this solution and can operate normally. All electrical components in this case are connected to their compatible power supplies through wires, and according to actual conditions, appropriate controllers are selected to meet control requirements. The specific connection and control sequence should refer to the following working principle. The electrical connection is completed in the order of working between the electrical components. The detailed connection means are well known in this field and will not be explained in detail for electrical control.

[0028] A specific application of this embodiment is:

[0029] During use, the mixed gas is transported into the connecting rod 4 through the air inlet pipe 5, and enters the filter cartridge 9 through the through hole 10. The motor 14 prompts the round rod 11 to drive the circular plate 12 and the blades 13 to rotate at high speed. The high-speed rotation of the blades 13 also drives the mixed gas to rotate at high speed. The high-speed rotation of the mixed gas generates a huge centrifugal force, causing the mixed gas to rub against the inner wall of the filter cartridge 9. Since the oil mist has an affinity, when the mixed gas containing the oil mist rubs against the inner wall of the filter cartridge 9, an oil film containing oil of a certain area is formed on the surface of the filter cartridge 9. The mixed gas will throw out the oil mist under the action of the centrifugal force. The continuously thrown oil mist is absorbed and dissolved to the surface of the filter cartridge 9 under the action of the affinity of the oil film on the surface of the filter cartridge 9. The separated gas is discharged and collected through the exhaust pipe 3.

[0030] The pressurized cleaning liquid is injected into the inner cylinder 6 and the connecting plate 8 through the liquid inlet pipe 7, and sprayed out to the outer wall of the filter cylinder 9 through the water spray hole to clean the oil film on the inner wall of the filter cylinder 9. The cleaned sewage is discharged into the outer cylinder 1 through the left side of the inner cylinder 6 and discharged and collected through the sewage pipe 2.

[0031] Of course, the above description is not a limitation of the present invention, and the present invention is not limited to the above examples. Any changes, modifications, additions or substitutions made by ordinary technicians in this technical field within the essential scope of the present invention should fall within the scope of protection of the present invention.

Claims

1. A filtering device and a vacuum pump assembly, characterized in that: comprising an outer cylinder (1), A sewage pipe (2) is provided on the left side of the bottom end wall of the outer cylinder (1), an exhaust pipe (3) is provided on the left side wall of the outer cylinder (1), a connecting rod (4) is fixedly connected to the right inner wall of the outer cylinder (1), one end of an air inlet pipe (5) is provided on the top of the outer wall of the connecting rod (4), and the other end of the air inlet pipe (5) extends out of the outer cylinder (1), an inner cylinder (6) is provided on the left end wall of the connecting rod (4), one end of a liquid inlet pipe (7) is provided on the outer wall of the inner cylinder (6), and the other end of the liquid inlet pipe (7) extends out of the outer cylinder (1), a plurality of connecting plates (8) are provided on the inner wall of the inner cylinder (6), A water spray hole is provided on the inner wall of the connecting plate (8); a filter cartridge (9) is provided on the right inner wall of the inner cylinder (6); a plurality of through holes (10) are provided between the filter cartridge (9) and the inner cavity of the connecting rod (4); a round rod (11) is rotatably connected to the right inner wall of the filter cartridge (9) via a bearing; a round plate (12) is interference-fittedly connected to the outer wall of the round rod (11); a plurality of blades (13) are provided between the outer walls of the round rod (11) and the round plate (12); a motor (14) is provided on the right inner wall of the outer cylinder (1), and an output end of the motor (14) is fixedly connected to the right end of the round rod (11) via a coupling.

2. A filter device and vacuum pump assembly according to claim 1, characterized in that: The liquid inlet pipe (7), the inner cylinder (6), the connecting plate (8) and the water spray hole are connected.

3. A filter device and vacuum pump assembly according to claim 1, characterized in that: The through holes (10) are arranged on the right inner wall of the filter cylinder (9) with circumferential gaps.

4. A filter device and vacuum pump assembly according to claim 1, characterized in that: The outer ring of the bearing is fixedly connected to the inner wall of the filter cylinder (9) via a bearing seat, and the inner ring of the bearing is connected to the outer wall of the round rod (11) through an interference fit.

5. The filter device and vacuum pump assembly according to claim 1, characterized in that: The outer wall of the round rod (11) passes through the connecting rod (4) and is disconnected from the inner wall of the connecting rod (4).

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