Multi-stage rotary self-cleaning gas fine filtering system

Abstract

The utility model discloses a multi-stage rotary self-cleaning gas fine filtering system which comprises a base, a support frame is arranged on the base, and a filtering device and a cleaning device are arranged in the support frame; a motor is arranged at one end, extending out of the support frame, of the transmission shaft; one end, far away from the motor, of the filter barrel is open; a plurality of filtering holes are formed in the filtering barrel in the axis direction; a supporting rod is arranged on one side in the direction of the filtering barrel, a cleaning pipe is arranged on the supporting rod, the cleaning pipe and the transmission shaft are coaxially arranged, one end of the cleaning pipe is rotationally connected with a bottom plate of the filtering barrel, a nozzle is arranged on the cleaning pipe, and an air connecting pipe is arranged at the end, away from the cleaning pipe, of the supporting rod and is communicated with the cleaning pipe. The multi-stage rotary self-cleaning gas fine filtering system provided by the utility model has the effects of improving the filtering and cleaning efficiency and periodically cleaning gas filtering.

Description

Technical Field

[0001] This utility model belongs to the field of gas cleaning and fine filtration technology, and more specifically, relates to a multi-stage rotating self-cleaning gas fine filtration system. Background Technology

[0002] In industries such as pharmaceuticals, chemicals, and food, there are numerous drying processes, such as spray drying, fluidized bed drying, and granulation. During the drying process, a large amount of high-temperature, high-humidity, dust-containing gas is emitted. If directly emitted, it will cause serious environmental pollution and may also endanger the health of operators.

[0003] The inventors believe that traditional filter-type dust collectors, which pass dust-laden gas through microporous filter media and adsorb particles larger than the filter pores onto the surface, are prone to clogging. They require frequent backflushing during operation, making maintenance and management troublesome. The excessive dust can also clog heat exchangers, hindering subsequent heat recovery and utilization, resulting in a significant waste of energy. Utility Model Content

[0004] One objective of this invention is to provide a gas filtration system that improves filtration and cleaning efficiency and enables periodic cleaning.

[0005] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a multi-stage rotating self-cleaning gas fine filtration system.

[0006] To achieve the aforementioned objectives, the present invention employs the following technical solution: a base, on which a support frame is mounted, and within the support frame are a filtration device and a cleaning device; the filtration device includes a drive shaft, one end of which extends out of the support frame; a motor is mounted at the end of the drive shaft extending out of the support frame; a filter barrel is fixedly connected to the end of the drive shaft away from the motor, and the end of the filter barrel away from the motor is open; the filter barrel has multiple filter holes along its axial direction; a support rod is mounted on one side of the filter barrel, and a cleaning pipe is mounted on the support rod, the cleaning pipe being coaxial with the drive shaft, one end of the cleaning pipe being rotatably connected to the bottom plate of the filter barrel, and a nozzle being mounted on the cleaning pipe; an air inlet pipe is mounted at the end of the support rod away from the cleaning pipe, and the air inlet pipe and the cleaning pipe are interconnected.

[0007] Optionally, the cleaning device includes a water collection tray and an auxiliary water tray, with the water collection tray located below the filter barrel; the auxiliary water tray located below the air inlet pipe; and a dust collection trough provided above the support frame corresponding to the water collection tray.

[0008] Optionally, the dust collection trough is inclined, with the higher point of the dust collection trough being the side closer to the motor, and the dust collection trough being inclined downwards towards the side farther from the motor.

[0009] Optionally, a water outlet pipe is provided below the dust collection trough, and the water outlet pipe is located on one side of the lower end of the dust collection trough, and the water outlet pipe is connected to the dust collection trough.

[0010] Optionally, the radius of the filter barrel increases uniformly along the axial direction, starting from the bottom plate.

[0011] Optionally, the nozzle is connected to the cleaning tube, and the nozzle sprays vertically downwards.

[0012] Compared with the prior art, the advantages of this utility model include:

[0013] (1) The multi-stage rotating self-cleaning gas fine filtration system provided by this utility model has a multi-stage filtration structure. Through the conical design of the filter barrel and the uniformly distributed filter holes, a multi-stage filtration is formed, which significantly improves the particulate matter interception efficiency and is suitable for fine filtration of micron-sized particles. Dynamic filtration: When the filter barrel rotates, the gas forms a vortex in the barrel, which enhances the contact probability between the particulate matter and the filter cotton and further optimizes the filtration effect.

[0014] (2) The multi-stage rotating self-cleaning gas fine filtration system provided by this utility model has a non-synchronous rotation of the cleaning pipe and the filter barrel, which realizes the steam cleaning of the filter barrel at a fixed point, avoiding the tedious operation of manual disassembly and cleaning; saving energy, the steam is precisely sprayed through the nozzle to reduce waste, and the auxiliary water tray and the water collection tray work together to ensure effective recovery of cleaning liquid. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the overall multi-stage rotating self-cleaning gas fine filtration system of this utility model;

[0017] Figure 2 This is a cross-sectional view of the multi-stage rotating self-cleaning gas fine filtration system of this utility model;

[0018] Figure 3 This is a cross-sectional view of the cleaning device in the multi-stage rotating self-cleaning gas fine filtration system of this utility model.

[0019] Reference numerals: 1. Base; 11. Support frame; 2. Filter device; 3. Cleaning device; 12. Fixing rod; 21. Drive shaft; 22. Motor; 23. Filter barrel; 24. Filter hole; 25. Partition plate; 26. Sealing ring; 27. Support rod; 28. Cleaning pipe; 281. Nozzle; 29. ​​Air inlet pipe; 31. Water collection tray; 32. Auxiliary water tray; 33. Dust collection trough; 34. Water outlet pipe.

[0020] In the accompanying drawings, the same parts are labeled with the same reference numerals; the drawings are not drawn to scale. Detailed Implementation

[0021] In view of the shortcomings of the prior art, the inventors of this case, through long-term research and extensive practice, have proposed the technical solution of this utility model. The technical solution, its implementation process, and principles will be further explained below with reference to the accompanying drawings and specific implementation examples.

[0022] It should be noted that the embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention. The described embodiments are only a part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, the present invention covers any substitutions, modifications, equivalent methods and solutions made within the spirit, principles and scope of the present invention as defined by the claims. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0023] In the description of this application, the terms "first," "second," "third," and similar words do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Similarly, the terms "a" or "one," and similar words, do not indicate a quantity limitation, but rather indicate the presence of at least one. The terms "comprising" or "including," and similar words, mean that the elements or objects preceding "comprising" or "including" encompass the elements or objects listed following "comprising" or "including," and their equivalents, but do not exclude other elements or objects. The terms "connected" or "linked," and similar words, are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect.

[0024] In the description of this application, the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used solely for the convenience of describing this application and for simplification, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application. Furthermore, when using positional terms such as "both sides," "outer side," and "upper and lower," it should be understood that they are used only for ease of understanding and description, taking into account that the structure may be oriented to other positions.

[0025] In the description of this application, unless otherwise expressly specified and limited, the technical or scientific terms used shall have the ordinary meaning understood by a person with ordinary skills in the art to which this application pertains. Terms such as “installation,” “connection,” and “joining” shall be interpreted broadly, for example, as fixed connection, detachable connection, mating connection, or integral connection. For a person skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0026] This utility model embodiment aims to introduce and explain the structural composition of the multi-stage rotating self-cleaning gas fine filtration system and the cooperation relationship between the various components. Unless otherwise specified, the dimensions, materials, and manufacturing processes of the various components in the multi-stage rotating self-cleaning gas fine filtration system in this utility model embodiment can be selected according to specific circumstances, and no special limitations or explanations are made here.

[0027] Furthermore, to provide the public with a better understanding of this utility model, certain specific details are described in detail in the following description. However, those skilled in the art can fully understand this utility model even without these detailed descriptions.

[0028] Example 1

[0029] Please see Figure 1-3 As shown, the multi-stage rotating self-cleaning gas fine filtration system includes a base 1, which is horizontally positioned. A support frame 11 is mounted on the base 1, and a filter device 2 and a cleaning device 3 are installed inside the support frame 11.

[0030] Please see Figure 1 As shown, the filter device 2 includes a fixed rod 12, which is vertically arranged and fixed to one end of the support frame 11. The drive shaft 21 is rotatably connected to the fixed frame, and one end of the drive shaft 21 extends out of the support frame 11. A motor 22 is provided at one end of the drive shaft 21 extending out of the support frame 11. The output shaft of the motor 22 is coaxially arranged with the drive shaft 21 and fixed to each other.

[0031] Please see Figure 1-3 As shown, a filter barrel 23 is fixedly connected to the end of the drive shaft 21 away from the motor 22. The filter barrel 23 is coaxially arranged with the drive shaft 21. A base plate is provided at the end of the filter barrel 23 near the motor 22, and the end of the filter barrel 23 away from the motor 22 is open. The radius of the filter barrel 23 increases uniformly along the axial direction starting from the base plate. Multiple filter holes 24 are opened in the filter barrel 23 along the axial direction. Filter cotton (not shown in the figure) is provided in each filter hole 24.

[0032] Please see Figure 1-3As shown, a partition 25 is provided on the support frame 11. The partition 25 is located in the open direction of the filter barrel 23. A sealing ring 26 is provided between the partition 25 and the filter barrel 23. A filter port (not shown in the figure) is opened on the partition 25 at the position corresponding to the filter barrel 23.

[0033] Please see Figure 1-3 As shown, a support rod 27 is provided on the side of the partition 25 away from the filter barrel 23. The support rod 27 is vertically arranged and fixedly connected to the support frame 11. A cleaning pipe 28 is provided on the support rod 27. The cleaning pipe 28 is coaxially arranged with the transmission rod and is hollow. One end of the cleaning pipe 28 is rotatably connected to the bottom plate of the filter barrel 23. A nozzle 281 is provided on the cleaning pipe 28 and is connected to the cleaning pipe 28. The spray direction of the nozzle 281 is vertically downward. An air inlet pipe 29 is provided on the end of the support rod 27 away from the cleaning pipe 28. The air inlet pipe 29 is coaxially arranged with the cleaning pipe 28 and is connected to the cleaning pipe 28.

[0034] Please see Figure 1-3 As shown, the cleaning device 3 includes a support frame 11 on which a water collection tray 31 is provided, which is located below the filter barrel 23; an auxiliary water tray 32 is provided on one side of the support frame 11 corresponding to the water collection tray 31, which is located below the air inlet pipe 29; a dust collection trough 33 is provided above the support frame 11 corresponding to the water collection tray 31, which is inclined, with the higher point of the dust collection trough 33 being the side closer to the motor 22, and the dust collection trough 33 inclined downwards towards the side away from the motor 22; a water outlet pipe 34 is provided below the dust collection trough 33, which is located on one side of the lower end of the dust collection trough 33, and the water outlet pipe 34 is connected to the dust collection trough 33.

[0035] The effect of this embodiment: In use, first install and inspect the equipment, place the equipment horizontally on the stable base 1, and ensure that the support frame 11 is firmly connected to the base 1; check whether the rotational connection between the drive shaft 21 and the fixed rod 12 is smooth, and whether the rotational sealing between the cleaning pipe 28 and the bottom plate of the filter barrel 23 is good; confirm that the motor 22, air inlet pipe 29, water collection tray 31, auxiliary water tray 32 and dust collection trough 33 are installed in place without looseness or blockage; start the motor 22: connect the power supply, start the motor 22 to drive the drive shaft 21 to rotate, and drive the filter barrel 23 to rotate at a constant speed along the fixed axis; when the filtered gas enters the filter barrel 23, the particulate matter in the gas is intercepted by the layers of filter cotton inside the filter barrel 23, and the clean gas is discharged from the open end of the filter barrel 23; the radius of the filter barrel 23 gradually increases along the axial direction, and with the evenly distributed filter holes 24, a multi-stage filtration structure is formed to improve filtration efficiency.

[0036] Steam is then injected into the air inlet pipe 29. Under pressure, the steam is sprayed vertically downward from the nozzle 281 to the filter hole 24 of the filter barrel 23, flushing the filtered impurities into the dust collection tank 33. The cleaning pipe 28 does not rotate synchronously with the filter barrel 23. When the filter barrel 23 rotates, the cleaning pipe 28 can continuously flush the attached particles on the filter barrel 23 into the dust collection tank 33. Through the dust collection tank 33, the particles flow along the inclined tank to the water outlet pipe 34 for discharge. The auxiliary water tray 32 receives the residual steam condensate dripping from the air inlet pipe 29 to avoid secondary pollution.

[0037] It should be understood that the above embodiments are only for illustrating the technical concept and features of this utility model, and are intended to enable those skilled in the art to understand the content of this utility model and implement it accordingly. It should not be considered that the specific implementation of this utility model is limited to these descriptions. For those skilled in the art to which this utility model pertains, several simple deductions or substitutions can be made without departing from the concept of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be covered within the protection scope of this utility model.

Claims

1. A multi-stage rotating self-cleaning gas fine filtration system, characterized in that: The base (1) is provided with a support frame (11), and a filtering device (2) and a cleaning device (3) are arranged in the support frame (11); The filtering device (2) comprises a transmission shaft, and one end of the transmission shaft (21) extends out of the support frame (11); the end of the transmission shaft (21) extending out of the support frame (11) is provided with a motor (22); The end of the transmission shaft (21) away from the motor (22) is fixedly connected with a filtering barrel (23), and the end of the filtering barrel (23) away from the motor (22) is provided with an opening; a plurality of filtering holes (24) are formed in the filtering barrel (23) along the axial direction; a support rod (27) is arranged on one side of the filtering barrel (23) in the direction, and a cleaning pipe (28) is arranged on the support rod (27); the cleaning pipe (28) is coaxial with the transmission shaft (21), one end of the cleaning pipe (28) is rotationally connected with a bottom plate of the filtering barrel (23), a nozzle (281) is arranged on the cleaning pipe (28), and an air connection pipe (29) is arranged at the end of the support rod (27) away from the cleaning pipe (28); the air connection pipe (29) is in communication with the cleaning pipe (28).

2. The multi-stage rotating self-cleaning gas polishing filter system of claim 1, wherein: The cleaning device (3) comprises a water collecting disc (31) and an auxiliary water disc (32); the water collecting disc (31) is arranged on the lower side of the filtering barrel (23); the auxiliary water disc (32) is arranged on the lower side of the air connection pipe (29); and the support frame (11) is provided with a dust collecting groove (33) above the water collecting disc (31).

3. The multi-stage rotating self-cleaning gas polishing filter system of claim 2, wherein: The dust collecting groove (33) is arranged in an inclined manner; the higher point of the dust collecting groove (33) is located on the side close to the motor (22), and the dust collecting groove (33) is arranged in an inclined downward manner on the side away from the motor (22).

4. The multi-stage rotating self-cleaning gas polishing filter system of claim 2, wherein: The dust collecting groove (33) is provided with a water outlet pipe (34) on the lower side; the water outlet pipe (34) is arranged on the side of the lower end of the dust collecting groove (33), and the water outlet pipe (34) is in communication with the dust collecting groove (33).

5. The multi-stage rotating self-cleaning gas polishing system of claim 1, wherein: The radius of the filtering barrel (23) increases uniformly along the axial direction from the motor (22) as the starting point.

6. The multi-stage rotating self-cleaning gas polishing system of claim 1, wherein: The nozzle (281) is in communication with the cleaning pipe (28), and the spraying direction of the nozzle (281) is vertically downward.

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