CN217662151U - Filtering component and air purification processing apparatus - Google Patents

Abstract

The utility model relates to a filter assembly and an air purification treatment device. The filter assembly is used to be installed in a filter box, the filter assembly divides the inner cavity of the filter box into a dust room and a clean room, and the filter assembly includes a frame and a filter body, and the filter body is arranged on the frame. The filter body includes a first filter element and a second filter element, the first filter element and the second filter element are stacked along the direction from the dust room to the clean room, and the first filter element and the second filter element are stacked along the direction from the dust room to the clean room. Both the filter element and the second filter element have a corrugated structure. During the process of the exhaust gas flowing from the dust chamber to the clean room, it can be filtered by the first filter element and the second filter element successively, which improves the dust filtering effect and ensures that the air discharged into the environment is cleaner. Since the first filter element and the second filter element are designed with a corrugated structure, it not only saves space, but also greatly increases the filtering area and improves the filtering efficiency of exhaust gas.

Description

Filter components and air purification treatment devices

technical field

The utility model relates to the technical field of air purification treatment, in particular to a filter assembly and an air purification treatment device.

Background technique

At present, in industries such as iron and steel, smelting, and chemical industry, waste gas pollution control is an important indicator to measure the environmental protection performance rating of enterprises. For example, in the iron and steel industry, iron and steel plants are major sources of air pollution. A large amount of smoke, particulate matter, carbon dioxide, sulfur dioxide and other polluted waste gas will be treated with filter equipment for environmental protection. At present, filter elements commonly used in filter equipment are filter cotton, filter bags, etc. These filter elements have poor filtering effect and large volume , takes up a lot of space.

Utility model content

Based on this, it is necessary to provide a filter assembly and an air purification treatment device, aiming at solving the problems of poor filtering effect, large volume and large space occupation in the prior art.

On the one hand, the present application provides a filter assembly for use in a filter box, the filter assembly divides the inner cavity of the filter box into a dust chamber and a clean room, characterized in that,

The filter assembly includes a frame and a filter body, the filter body is arranged on the frame; the filter body includes a first filter element and a second filter element, the first filter element and the second filter element are The direction from the dust chamber to the clean chamber is stacked, and the first filter element and the second filter element are both corrugated structures.

The filter assembly of the above scheme is applied and equipped in an air purification filter device, and is specifically installed in a filter box. During production, when the exhaust gas gathers on the top of the factory building, the air purification treatment device sucks the exhaust gas into the filter box, and the exhaust gas flows from the dust chamber through the filter assembly to the clean room. The dust is filtered and blocked by the filter assembly, and the clean air flows from the clean room. It is exhausted to the outside by the exhaust fan through the exhaust port to avoid pollution to the environment. During the process of the exhaust gas flowing from the dust chamber to the clean room, it can be filtered by the first filter element and the second filter element successively, so as to improve the dust filtering effect and ensure that the air discharged into the environment is cleaner. Since the first filter element and the second filter element are designed in a corrugated structure, it not only saves space, but also can greatly increase the filter area and improve the efficiency of filtering exhaust gas.

The technical scheme of the present application is described further below:

In one of the embodiments, an airflow channel is formed between the first filter element and the second filter element, and the airflow channel is used to communicate with a soot cleaning assembly, and the ash cleaning assembly is used to Blow air in the airflow channel.

In one of the embodiments, the dust cleaning assembly includes an air source, a pulse solenoid valve and a nozzle, the gas source communicates with the inlet nozzle of the nozzle, and the outlet nozzle of the nozzle communicates with the airflow The channel is connected, and the pulse solenoid valve is arranged in the nozzle.

In one of the embodiments, the dust cleaning assembly further includes a pressurized air bag, and the pressurized air bag is connected between the pulse solenoid valve and the nozzle.

In one of the embodiments, the frame includes a first support rod and a second support rod, the first support rod is connected to one end of the filter body, and the second support rod is connected to the other end of the filter body one end.

In one of the embodiments, the frame further includes a first border strip and a second border strip, the first border strip and the second border strip are respectively arranged at opposite connections of the filter body, and the first border strip A frame bar and the second frame bar are both connected and fixed to the first support bar and the second support bar.

In one of the embodiments, the frame further includes a seal, and the seal is disposed on the first support rod.

In one of the embodiments, the sealing member is configured as a sealing rubber ring.

In one of the embodiments, the surface of at least one of the first filter element and the second filter element is provided with a protective coating.

On the other hand, the present application also provides an air purification treatment device, which includes the above filter assembly.

Description of drawings

The accompanying drawings constituting a part of this application are used to provide a further understanding of the utility model, and the schematic embodiments of the utility model and their descriptions are used to explain the utility model, and do not constitute an improper limitation of the utility model.

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings that need to be used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings in the following description are only some implementations of the present invention. For example, those of ordinary skill in the art can also obtain other drawings based on these drawings on the premise of not paying creative efforts.

Fig. 1 is a schematic structural view of a plant air purification treatment system described in an embodiment of the present application;

Fig. 2 is a side view arrangement diagram of the air purification treatment device in Fig. 1;

Fig. 3 is the structural representation of the air purification treatment device in the present application;

Fig. 4 is a structural schematic diagram of another viewing angle of Fig. 3;

Fig. 5 is a schematic structural view of the ring blowing assembly in Fig. 4;

Fig. 6 is the structural representation of filtering assembly among the present application;

Fig. 7 is a structural schematic diagram of another viewing angle of Fig. 6;

FIG. 8 is a structural schematic diagram of another viewing angle in FIG. 6 .

Explanation of reference signs:

100. Plant air purification treatment system; 10. Control system; 20. Air purification treatment device; 21. Dust collection cover; 22. Filter box; 221. Dust room; 222. Clean room; 23. Filter assembly; 231. Frame; 2311, the first support rod; 2312, the second support rod; 2313, the first frame bar; 2314, the second frame bar; 2315, the seal; 232, the filter body; 2321, the first filter element; 2322, the second filter 233, air flow channel; 24, exhaust fan; 25, dust removal assembly; 251, air source; 252, pulse solenoid valve; 253, nozzle; 254, pressurized air bag; 30, dust collection device; Dust hopper; 32, material level meter; 33, ash discharge valve; 34, ring blowing assembly; 341, bracket; 342, air blowing nozzle; 40, detection device; 41, differential pressure sensor; 42, pressure sensor; 50, storage Dust device; 51, dust pipeline; 52, cyclone dropper; 53, high negative pressure warehouse; 54, air pump; 55, storage bin; 200, workshop.

Detailed ways

In order to make the above purpose, features and advantages of the present utility model more obvious and understandable, the specific implementation of the present utility model will be described in detail below in conjunction with the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a full understanding of the present invention. However, the utility model can be implemented in many other ways different from those described here, and those skilled in the art can make similar improvements without violating the connotation of the utility model, so the utility model is not limited by the specific embodiments disclosed below limit.

As shown in Figures 1 to 8, it is a plant air purification treatment system 100 shown in an embodiment of the present application, which includes: a control system 10, at least one air purification treatment device 20, a dust collection device 30, a detection device 40 and Dust storage device 50.

At least one air purification treatment device 20 is used to be installed at the air outlet of the roof of the factory building 200 . Further, in order to improve exhaust gas discharge and filtration efficiency, multiple air outlets can be opened on the roof of the factory building 200, and each air outlet is equipped with an air purification treatment device 20, and multiple air purification treatment devices 20 simultaneously purify and discharge the exhaust gas Work. For example, this embodiment shows the implementation of using 10 air purification treatment devices 20 to work at the same time.

The air purification treatment device 20 is electrically connected to the control system 10; the dust collection device 30 communicates with the air purification treatment device 20 to collect dust generated by filtration, and the dust collection device 30 is connected to the The control system 10 is electrically connected; the detection device 40 is electrically connected to the air purification treatment device 20; the dust storage device 50 communicates with the dust collection device 30 through a dust delivery pipeline 51, and the dust storage device 50 It is electrically connected with the control system 10 .

In summary, the implementation of the technical solution of this embodiment will have the following beneficial effects: the plant air purification treatment system 100 of the above-mentioned solution is applied and equipped in the plant 200 that carries out production operations in the fields such as iron and steel, chemical industry, etc., specifically, the air purification treatment device 20. The assembly of the dust collection device 30 and the detection device 40 is directly installed at the air outlet on the roof of the factory building 200 . During production, when fugitive waste gas accumulates on the top of the factory building 200, the air purification treatment device 20 sucks and purifies the waste gas, and then discharges the clean air from the air outlet to the external environment to filter out the generated dust first. The dust is collected into the dust collecting device 30, and then can be sucked away by the dust storage device 50 through the dust conveying pipeline 51, so as to realize the centralized treatment of the dust. During this process, according to the real-time monitoring of various parameters such as pressure and pressure difference by the detection device 40 and feedback to the control system 10, the control system 10 can control the air purification treatment device 20 to always maintain the optimal operating condition and improve the efficiency of exhaust gas flow. and effects. Compared with the prior art, the waste gas at the top of the factory building 200 can be cleaned and discharged to the outside, so as to avoid physical and mental impact on the workers in the factory building 200, and the air discharged outside is clean air after purification, so It will not cause harm to surrounding residents and vegetation.

In some embodiments, the air purification treatment device 20 includes a dust collection hood 21, a filter box 22, a filter assembly 23 and an exhaust fan 24, and the dust collection hood 21 is used to be installed at the air outlet and communicate with The air inlet of the filter box 22 is connected, the filter assembly 23 is arranged in the filter box 22 and the inner cavity of the filter box 22 is divided into a dust chamber 221 and a clean room 222, and the dust chamber 221 The dust collecting device 30 communicates with the air inlet respectively, and the exhaust fan 24 is arranged on the filter box 22 and communicates with the clean room 222 .

When working, start the exhaust fan 24, and the air inlet of the filter box 22 can generate negative pressure suction, thereby sucking the waste gas at the top of the factory building 200 into the filter box 22. Then the exhaust gas flows from the dust chamber 221 through the filter assembly 23 to the clean room 222, the dust is filtered and blocked by the filter assembly 23, and the clean air is exhausted from the clean room 222 to the outside by the exhaust fan 24 through the air outlet to avoid polluting the environment. The dust generated by filtration falls into the dust collection device under the action of its own weight for temporary storage. The setting of the dust collecting hood 21 can better suck exhaust gas into the filter box 22 .

In some embodiments, the filter assembly 23 includes a frame 231 and a filter body 232 , and the filter body 232 is disposed on the frame 231 . The frame 231 supports and fixes the filter body 232 , and enables the filter assembly 23 to be mounted on the filter box 22 . The filter body 232 has the ability to filter and purify the exhaust gas, to block the dust, and prevent the dust from being discharged to the outside together with the air to cause environmental pollution.

On the basis of the above embodiments, the filter body 232 includes a first filter element 2321 and a second filter element 2322, and the first filter element 2321 and the second filter element 2322 are along the dust chamber 221 to the The direction of the clean room 222 is stacked. In this way, the exhaust gas entering the filter box 22 from the factory building 200 can be filtered by the first filter element 2321 and the second filter element 2322 successively during the process of flowing from the dust chamber 221 to the clean room 222, so as to improve the effect of dust filtration , to ensure that the air discharged into the environment is cleaner.

According to actual needs, the first filter element 2321 and the second filter element 2322 can be any one of filter screen, filter plate, filter membrane, etc., and the structure, shape, size, etc. of both can be selected according to actual needs . For example, in this embodiment, both the first filter element 2321 and the second filter element 2322 have a corrugated structure. And the first filter element 2321 and the second filter element 2322 are filter paper boards. The corrugated structure design of the two not only saves space, but also can greatly increase the filtration area and improve the efficiency of exhaust gas filtration.

Both the first filter element 2321 and the second filter element 2322 are made of nano-scale materials, so the air permeability is good, the filter pressure difference is reduced, and the internal resistance is small, which helps to reduce energy consumption. In addition, the first filter element 2321 and the second filter element 2322 can also be treated with oil-proof, waterproof, anti-static, film coating, etc., which can be suitable for various complex working conditions, and the service life and reliability are greatly improved.

It has been verified that the first filter element 2321 and the second filter element 2322 have high filtration efficiency, the filtration efficiency is >99.9%, the emission concentration is less than 5mg/m3@0.5m/min, and the interception rate of particles with a particle size of ≥0.5μm can reach 99.5%. The interception rate of PM2.5 is as high as 99.989%. Generally speaking, compared with traditional filter elements, it has the advantages of energy saving, low carbon and environmental protection, stable and reliable performance, long service life, and reduced use costs.

However, in actual work, due to factors such as the humidity of the working environment, the humidity of the exhaust gas is high, and the dust is easily adhered and accumulated on the surface of the filter assembly 23 while being blocked by the filter assembly 23, which in turn causes the filter assembly 23 to block and reduce the filtration capacity. . At this point, the filter assembly 23 needs to be cleaned to ensure its cleanliness. However, if the manual cleaning method is adopted, there will be low efficiency, and the shutdown will affect the work efficiency and other impacts. In view of this, in some embodiments, an air flow channel 233 is formed between the first filter element 2321 and the second filter element 2322, and the air purification treatment device 20 also includes a dust removal assembly 25, the The dust cleaning assembly 25 communicates with the airflow channel 233 , and the dust cleaning assembly 25 is used to blow air into the airflow channel 233 . Therefore, by blowing air into the airflow channel 233, the dust removal assembly 25 can blow off the dust on the surface of the first filter element 2321 and the second filter element 2322, thereby achieving a self-cleaning effect with high cleaning efficiency and good effect.

The cleaning component 25 in this application performs cleaning control in three control forms, namely cycle time control, pressure difference control and mixing control, all of which are controlled by PLC controllers or other controllers. The cycle time control is to use the set cycle time to open the first pulse solenoid valve 252 on the air purification treatment device 20, to feed compressed air in an instant, and then to close it. After an interval, the second pulse solenoid valve 252 action, until the last pulse solenoid valve 252 on the air purification treatment device 20 is opened, and then closed, at this moment, a cycle ends, the cycle time arrives, and the next cycle begins, and so cycle. Differential pressure control is based on the differential pressure sensor 41 on the air purification device 20 to control the pulse solenoid valve 252. When the pressure difference of the air purification device 20 reaches a certain value, it means that the filter is covered with dust , at this time the differential pressure control self-cleaning system is started, and each pulse solenoid valve 252 is used for cyclic blowing. Mixing control refers to periodic pressure difference control. When the pressure difference does not reach a certain value, the cycle time control pulse solenoid valve 252 is used for cleaning. When the pressure difference reaches a certain value, the pressure difference control is automatically performed. Air purification treatment device After the pulse electromagnetic on the 20 blows once in turn, it is converted into a cycle time control, so as to achieve the effect of automatically cleaning the filter assembly 23.

In some embodiments, the detection device 40 includes a differential pressure sensor 41, the differential pressure sensor 41 is disposed on the inner wall of the filter box 22 and between the dust chamber 221 and the clean room 222, so The differential pressure sensor 41 is electrically connected with the control system 10 . The pressure difference sensor 41 can detect the pressure difference between the dust chamber 221 and the clean room 222 in real time. When the pressure difference reaches or even exceeds the preset value, it means that the filter assembly 23 is clogged. At this time, a signal can be sent to the control system 10 , to start the cleaning assembly 25 work. This way will not cause the dust removal assembly 25 to be normally opened to cause energy waste, and at the same time, the filter assembly 23 can be cleaned in time.

Further, the detection device 40 also includes a pressure sensor 42 , the pressure sensor 42 is arranged on the inner wall of the dust chamber 221 and is electrically connected with the control system 10 . The pressure sensor 42 is used to detect the constant pressure of the compressed air, so as to feed back the signal to the control system 10, and control the cleaning assembly 25 to spray and clean the filter assembly 23 with more suitable operating parameters.

On the basis of the above embodiments, the frame 231 includes a first support rod 2311 and a second support rod 2312, the first support rod 2311 is connected to one end of the filter body 232, and the second support rod 2312 is connected to at the other end of the filter body 232. The first support rod 2311 and the second support rod 2312 realize assembly and fixation of the filter body 232 . Wherein, the flow direction of the air flow channel 233 is from the first support rod 2311 to the second support rod 2312 . Wherein, the first support rod 2311 is directly connected with the dust removal assembly 25, the first support rod 2311 adopts a Venturi structure design, and an air cavity is formed inside it, which can well introduce the blowing air into the air flow channel 233 inside the filter assembly 23 middle.

Optionally, both the first support rod 2311 and the second support rod 2312 are made of polyurethane material, which has good wear resistance, is not easy to be deformed and aged, and has a long service life. In addition, it can be processed by injection molding, and the manufacturing cost is low.

Further, the frame 231 also includes a first frame bar 2313 and a second frame bar 2314, the first frame bar 2313 and the second frame bar 2314 are respectively arranged on opposite sides of the filter body 232, and Both the first frame bar 2313 and the second frame bar 2314 are connected and fixed to the first support bar 2311 and the second support bar 2312 . The first frame bar 2313 and the second frame bar 2314 are connected with the filter assembly 23, which can further install and fix the filter assembly 23, and have a supporting effect on the filter assembly 23, so as to prevent the blowing air with a higher pressure from passing through the air flow channel 233 to cause filtration Assembly 23 is deformed.

Optionally, the first frame bar 2313 and the second frame bar 2314 are made of reinforced PVC material, and can be formed by basic molding, which has good durability and strong processability.

In addition, the frame 231 further includes a seal 2315 disposed on the first support rod 2311 . The sealing member 2315 can improve the sealing performance of the filter assembly 23 after installation, and avoid blowing air leakage from affecting the self-cleaning performance of the filter assembly 23 . Optionally, the sealing member 2315 may be, but not limited to, a rubber ring or the like.

During operation, the dust generated by filtering by the filter assembly 23 will fall into the dust collecting device below under the action of air flow and self-weight. In some embodiments, the dust collection device 30 includes a dust collection hopper 31, a material level gauge 32 and a dust discharge valve 33, the dust inlet of the dust collection hopper 31 communicates with the dust chamber 221, and the dust discharge The valve 33 is arranged at the dust discharge port of the dust collecting hopper 31 , and the material level gauge 32 is arranged in the dust collecting hopper 31 and arranged close to the dust inlet. The dust collecting hopper 31 is used to collect and temporarily store the falling dust. The material level gauge 32 is used to detect the amount of dust collected in the dust collecting hopper 31. When the preset value is reached, the control system 10 starts the dust discharge in order to avoid the dust from overflowing. The valve 33 can discharge the dust in the dust collecting hopper 31 to the dust storage device 50 .

In this embodiment, the dust collecting hopper 31 is designed with a round sky structure, and the inner wall is tapered and smooth to ensure that the dust can slide out of the dust collecting hopper 31 better under its own weight.

Further, in order to prevent the dust under the dust collecting hopper 31 from consolidating under the influence of its own weight and unable to be discharged smoothly, in some embodiments, the dust collecting device 30 also includes a surrounding blowing assembly 34, which 34 is arranged in the dust collecting hopper 31 and is used for blowing air to the dust. Blowing to the dust can loosen the solidified dust, so that it can be smoothly discharged from the dust collecting hopper 31 .

Preferably, in some embodiments, the surrounding blowing assembly 34 includes a bracket 341 and at least two blowing nozzles 342 , and at least two blowing nozzles 342 are arranged on the bracket 341 along the circumferential direction. Therefore, at least two air nozzles can blow air to the consolidated dust from different directions, so as to better loosen the dust, so that the dust can be completely discharged from the dust collecting hopper 31 .

In addition, on the basis of any of the above-mentioned embodiments, the dust storage device 50 includes a dust conveying pipeline 51, a cyclone dropper 52, a high negative pressure chamber 53, an air pump 54, and a storage bin 55. The cyclone dropper The feeder 52 communicates with the high negative pressure chamber 53 and is arranged on the storage bin 55, and the two ends of the dust conveying pipeline 51 are respectively connected with the dust collecting device 30 and the cyclone feeder. 52 , the high negative pressure chamber 53 communicates with the suction pump 54 .

When the dust collected in the dust hopper 31 is almost full, the control system 10 controls the air pump 54 to start, and at the same time opens the dust discharge valve 33, and the dust in the dust hopper 31 flows into the dust along the dust pipeline 51 under the action of air suction. In the cyclone feeder 52 and the high negative pressure chamber 53, it is further separated from the air and falls into the storage bin 55, where it is recovered centrally by the storage bin 55 and is convenient for regular cleaning.

In this embodiment, the control system 10 is composed of a PLC control cabinet, a host computer and a master control room. Through the PLC controller in the control cabinet, the temperature, dust concentration, pressure difference, pressure, material level detection, etc. on each air purification treatment device 20 are collected and analyzed, and the air purification treatment device 20 is controlled by the PLC control program. Exhaust fan 24, pulse solenoid valve 252, ring blowing assembly 34, ash discharge valve 33 and other executive components operate as exhaust fan 24—exhaust gas enters filter box 22—filters through filter assembly 23—ash cleaning assembly 25 operates --Operation of material level detection linkage intelligent ash discharge and conveying system--cyclone dropper 52--high negative pressure chamber 53--storage bin 55 collects dust and other required actions, and executes them in conjunction. The operating equipment in the air purification treatment device 20 should be provided with a failure alarm device. When the equipment fails, the controller sends a failure alarm signal immediately, and sends it to the operating room, and sets a display alarm on the main control cabinet and the upper computer. If the fault signal is still not eliminated after 5 minutes, the operating equipment corresponding to the fault can automatically power off and stop running. It does not affect the operation of other normal equipment.

The PLC controller uploads the collected data information of the instruments and meters, the operating status information of the control execution parts, error alarm information, etc. to the host computer for overall real-time dynamic monitoring, and records and saves the data error alarm information of each instrument uploaded by the controller to the In the database, it can be called and viewed in real time. Realize automatic management and control. In the general control room, the management personnel can check the various information uploaded by the PLC controller on the host computer and separately send corresponding control information to the PLC to control the air purification treatment device 20. Realize intelligent energy-saving group management control.

The technical features of the above-mentioned embodiments can be combined arbitrarily. To make the description concise, all possible combinations of the technical features in the above-mentioned embodiments are not described. However, as long as there is no contradiction in the combination of these technical features, should be considered as within the scope of this specification.

The above-mentioned embodiments only express several implementation modes of the utility model, and the description thereof is relatively specific and detailed, but it should not be understood as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the scope of protection of the utility model patent should be based on the appended claims.

In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "Back", "Left", "Right", "Vertical", "Horizontal", "Top", "Bottom", "Inner", "Outer", "Clockwise", "Counterclockwise", "Axial" ", "radial", "circumferential" and other indicated orientations or positional relationships are 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 the indicated A device or element must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be construed as a limitation of the present invention.

In addition, the terms "first" and "second" are only used for descriptive purposes, and should not be construed as indicating or implying relative importance or implying the number of indicated technical features. Thus, the features defined as "first" and "second" may explicitly or implicitly include at least one of these features. In the description of the present invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise expressly and specifically defined.

In this utility model, unless otherwise specified and limited, terms such as "installation", "connection", "connection" and "fixation" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection. Connected, or integrated; may be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediary, and may be an internal communication between two elements or an interactive relationship between two elements, unless otherwise stated Clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

In the present invention, unless otherwise clearly specified and limited, the first feature may be in direct contact with the first feature or the first feature and the second feature through an intermediary indirect contact. Moreover, "above", "above" and "above" the first feature on the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. "Below", "beneath" and "beneath" the first feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is less horizontally than the second feature.

It should be noted that when an element is referred to as being “fixed on” or “disposed on” another element, it may be directly on the other element or there may be an intervening element. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. As used herein, the terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions are for the purpose of illustration only and are not intended to represent the only embodiment.

Claims (10)

1. A filter assembly, used to be installed in the filter box, the filter assembly divides the inner cavity of the filter box into a dust chamber and a clean room, characterized in that, The filter assembly includes a frame and a filter body, the filter body is arranged on the frame; the filter body includes a first filter element and a second filter element, the first filter element and the second filter element are The direction from the dust chamber to the clean chamber is stacked, and the first filter element and the second filter element are both corrugated structures. 2. The filter assembly according to claim 1, wherein an air flow channel is formed at intervals between the first filter element and the second filter element, and the air flow channel is used to communicate with the ash removal assembly, the The dust removal assembly is used to blow air into the airflow channel. 3. The filter assembly according to claim 2, wherein the dust removal assembly includes an air source, a pulse solenoid valve and a nozzle, the gas source is communicated with the air inlet of the nozzle, and the nozzle The air outlet of the tube is in communication with the airflow channel, and the pulse solenoid valve is arranged in the nozzle. 4 . The filter assembly according to claim 3 , wherein the dust cleaning assembly further comprises a pressurized air bag, and the pressurized air bag is connected between the pulse solenoid valve and the nozzle. 5. The filter assembly according to claim 4, wherein the frame comprises a first support rod and a second support rod, the first support rod is connected to one end of the filter body, and the second support rod The rod is connected to the other end of the filter body. 6. The filter assembly according to claim 5, wherein the frame further comprises a first border strip and a second border strip, the first border strip and the second border strip are respectively arranged on the filter The relative connection of the body, and the first frame bar and the second frame bar are both connected and fixed to the first support bar and the second support bar. 7. The filter assembly according to claim 6, wherein the frame further comprises a seal, and the seal is disposed on the first support rod. 8. The filter assembly according to claim 7, characterized in that, the sealing member is configured as a sealing rubber ring. 9. The filter assembly according to claim 1, wherein a surface of at least one of the first filter element and the second filter element is provided with a protective coating. 10. An air purification treatment device, characterized by comprising the filter assembly according to any one of claims 1 to 9.

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