Filtering device and dust removal system

Abstract

The utility model discloses a filtering device and a dust removal system, and relates to the technical field of gas filtering. The filtering device comprises a shell, a blowing assembly and a driving assembly, wherein the shell is provided with a first air inlet and a hole position above a filter cartridge; a filter cartridge is arranged in the shell, and a gap is formed between the outer side wall of the filter cartridge and the inner side wall of the shell; the first air inlet is communicated with the gap, and the hole site above the filter cartridge is communicated with the internal space of the filter cartridge; at least part of the blowing assembly is arranged in the inner space of the filter cartridge; the injection assembly can inject airflow into the filter cartridge; the driving assembly can drive the blowing assembly to rotate around a center line parallel to the first direction, so that the blowing assembly sprays airflow to the inner side wall of the filter cartridge in the circumferential direction of the filter cartridge. The filtering device is used for cleaning the filter cartridge, and the situation that too much dust is attached to the side wall of the filter cartridge, and consequently the filtering effect is poor is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to gas filter technical field especially, relate to a filter device and dust removal system. BACKGROUND

[0002] In the mechanical field, some processing operations will have sparks in the process, for example, fine grinding, metal cutting or welding, etc., therefore, in order to reduce the risk of fire or dust explosion in the working area, and ensure the health of the staff, the dust in the air in the working area needs to be removed, and the air needs to be kept clean. In the prior art, industrial dust collectors are usually used for air dust removal.

[0003] However, the current industrial dust collector has high cost, and the filter cartridge in the dust collector will have too much dust attached to the side wall of the filter cartridge after long-term use, which will result in poor dust removal effect, and even cause the air pipe to be blocked, so that the dust collector cannot work normally. SUMMARY

[0004] The utility model discloses a kind of filter device and dust removal system, for cleaning filter cartridge, avoid too much dust attached to the side wall of filter cartridge, resulting in poor filtering effect.

[0005] To achieve this purpose, the utility model adopts the following technical solutions:

[0006] On the one hand, the utility model provides a kind of filter device, which comprises: a shell, provided with a first air inlet and a filter cartridge upper hole; the shell is provided with a filter cartridge, and the outer side wall of the filter cartridge and the inner side wall of the shell have a gap; the first air inlet is communicated with the gap, and the filter cartridge upper hole is communicated with the internal space of the filter cartridge; a blowing assembly is at least partially arranged in the internal space of the filter cartridge; the blowing assembly can spray air flow towards the inside of the filter cartridge; a driving assembly can drive the blowing assembly to rotate around a center line parallel to the first direction, so that the blowing assembly sprays air flow to the inner side wall of the filter cartridge along the circumference of the filter cartridge.

[0007] In some embodiments, the blowing assembly comprises: a blowing pipeline arranged in the internal space of the filter cartridge; the blowing pipeline is provided with air holes; a gas source is arranged outside the shell; the gas source is connected with the blowing pipeline to supply air to the blowing pipeline.

[0008] In some embodiments, the blowing pipeline comprises: an air inlet pipe connected with the gas source; a plurality of air outlet pipes are distributed along the circumference of the air inlet pipe and are connected to the air inlet pipe; the side of the air outlet pipe close to the inner side wall of the filter cartridge is provided with a plurality of air holes along the length direction of the air inlet pipe; the air inlet pipe and the plurality of air outlet pipes are arranged along the first direction.

[0009] In some embodiments, the filter device further comprises a telescopic sealing baffle outside the housing; when the blowing assembly sprays the air flow, the telescopic sealing baffle can block the hole above the filter cartridge.

[0010] In some embodiments, the filter device further comprises a support outside the housing; the part of the blowing assembly outside the housing is fixedly connected with the housing through the support.

[0011] In some embodiments, the filter device further comprises a viewing window on the housing, through which the use of the filter cartridge can be observed.

[0012] In another aspect, the utility model provides a dust removal system, the dust removal system includes cyclone separation bin and the filter device described in any one embodiment above,

[0013] The top of the cyclone separation bin is provided with a second air inlet and a second air outlet; the second air outlet is communicated with the first air inlet; the to-be-filtered gas is introduced into the cyclone separation bin through the second air inlet and is introduced into the gap through the second air outlet and the first air inlet.

[0014] In some embodiments, the dust removal system further comprises a fan; the fan is provided with a third air inlet and a third air outlet; the third air inlet is communicated with the second air outlet, and the third air outlet is communicated with the first air inlet.

[0015] In some embodiments, the housing of the filter device is provided with a first dust accumulation end opposite to the hole above the filter cartridge, the bottom of the cyclone separation bin is provided with a second dust accumulation end, the first dust accumulation end is communicated with the second dust accumulation end; the dust removal system further comprises a dust accumulation device connected to the second dust accumulation end, which is used for collecting the dust in the second dust accumulation end.

[0016] In some embodiments, a Venturi tube is arranged at the second air inlet, and the to-be-filtered gas is introduced into the cyclone separation bin through the Venturi tube.

[0017] The utility model has the advantages of:

[0018] In one aspect, the utility model provides a kind of filtering device, by being provided with the shell with first air inlet and filter cartridge upper hole, the filter cartridge with the gap between outer side wall and shell inner side wall is arranged in shell interior, first air inlet is communicated with the gap simultaneously, filter cartridge upper hole is communicated with the internal space of filter cartridge, and the blowing assembly of being at least partially located in filter cartridge internal space is arranged, the blowing assembly can be sprayed towards filter cartridge airflow. Thus, in the process that the gas to be filtered enters shell interior by first air inlet and then flows out shell by filter cartridge upper hole, the gas to be filtered will flow through filter cartridge, and dust carried by the gas to be filtered will be attached on the outer side wall of filter cartridge due to the filtering effect of filter cartridge, so that the filtration of the gas to be filtered is realized;Meanwhile, when the blowing assembly at least partially located in filter cartridge is sprayed towards filter cartridge airflow, the airflow can penetrate from the inner side wall of filter cartridge to the outer side wall of filter cartridge, so that dust attached on the outer side wall of filter cartridge falls off from the outer side wall of filter cartridge after being impacted by airflow, falls into shell bottom from the gap between filter cartridge and shell, and along with the driving assembly driving the blowing assembly rotates around first direction, the blowing assembly can spray airflow towards the inner side wall of entire filter cartridge along the circumference of filter cartridge, realize the cleaning of entire filter cartridge, avoid too much dust being attached on the side wall of filter cartridge, ensure that filter cartridge has better filtering effect.

[0019] In another aspect, the utility model provides a kind of dust removal system, which comprises cyclone separation bin and the filtering system described in any one of the above embodiments, the gas to be filtered can be introduced into the interior of cyclone separation bin for preliminary dust removal by the second air inlet of cyclone separation bin, and then introduced into the filtering device for fine filtration by the second air outlet and the first air inlet of filtering device, which significantly improves the cleaning effect of the gas to be filtered. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is the structure diagram of a kind of filtering device provided by the utility model embodiment;

[0021] Figure 2 It is the structure diagram of another filtering device provided by the utility model embodiment;

[0022] Figure 3 It is the connection structure diagram of intake pipe and telescopic sealing baffle provided by the utility model embodiment;

[0023] Figure 4 It is the structure diagram of a kind of dust removal system provided by the utility model embodiment.

[0024] In the drawings:

[0025] 1, filter device; 11, housing; 111, first air inlet; 112, filter cartridge upper hole; 113, first dust accumulation end; 12, filter cartridge; 13, blowing assembly; 131, blowing pipeline; 1311, air inlet pipe; 1312, air outlet pipe; 1313, air hole; 132, air source; 14, telescopic sealing baffle; 15, support; 16, observation window; 17, first pipe; 171, second annular flange; 18, second pipe; 19, sleeve; 191, first annular flange; 20, elastic member;

[0026] 2, cyclone separation bin; 211, second air inlet; 212, second air outlet; 22, second dust accumulation end;

[0027] 3, fan; 31, third air inlet; 32, third air outlet;

[0028] 4, dust accumulation device;

[0029] 5, venturi; 51, convergent pipe; 52, throat pipe; 53, divergent pipe;

[0030] X1, first direction. DETAILED DESCRIPTION

[0031] The utility model will be described in further detail below in combination with the drawings and examples. It can be understood that the specific examples described herein are only used to explain the utility model and are not limited to the utility model. In addition, it should be noted that only the parts related to the utility model are shown in the drawings for the convenience of description, not all the structures.

[0032] In the description of the utility model, unless otherwise explicitly specified and limited, the terms "connected", "connected", "fixed" should be understood broadly, and the specific meaning of the above terms in the utility model can be understood by the person skilled in the art according to the specific circumstances.

[0033] In the utility model, unless otherwise explicitly specified and limited, the first feature "on" or "below" the second feature can include that the first and second features are in direct contact, or the first and second features are not in direct contact but are in contact through another feature between them.

[0034] In the description of the embodiment, the terms "upper", "lower", "left", "right" and other orientation or position relationship are based on the orientation or position relationship shown in the drawings, which is only for the convenience of description and simplification of operation, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, therefore it cannot be understood as a limitation on the utility model. In addition, the terms "first", "second" are only used to distinguish in description and have no special meaning.

[0035] AsFigure 1 The utility model provides a filter device, the filter device 1 includes shell 11, sprays blow subassembly 13 and drive subassembly (not shown in the drawing).

[0036] The shell 11 is for example cuboid shell or cylinder shell, and the shell 11 is taken as cylinder shell in the embodiment and is explained. The shell 11 is provided with first air inlet 111 and filter cartridge upper hole position 112, and the shape of first air inlet 111 and filter cartridge upper hole position 112 is for example circular, square or oval. First air inlet 111 is used to pass the gas to be filtered into the filter device 1, and filter cartridge upper hole position 112 is used to discharge the clean gas filtered out of the filter device 1.

[0037] The filter cartridge 12 is arranged in the shell 11, and the filter cartridge 12 is for example cuboid cylinder structure or cylinder cylinder structure, and the shape of the filter cartridge 12 can be the same as or different from the shape of the shell 11. In the embodiment, the shape of the filter cartridge 12 is the same as that of the shell 11, i.e. the filter cartridge 12 is taken as cylinder cylinder structure and is explained.

[0038] The outer wall of the filter cartridge 12 and the inner wall of the shell 11 have a gap, in other words, the filter cartridge 12 can be placed in the shell 11, and the outer diameter of the filter cartridge 12 is smaller than the inner diameter of the shell 11, so that the gas to be filtered can flow along the gap between the filter cartridge 12 and the shell 11, uniformly distribute on the outer periphery of the filter cartridge 12, and further flow into the filter cartridge 12, thereby increasing the effective filtering area of the filter cartridge 12, improving the filtering efficiency and the utilization rate of the filter cartridge 12. The first air inlet 111 is communicated with the gap, the gas to be filtered enters the gap, and then passes through the filter cartridge 12 for filtering, and the clean air is located in the filter cartridge 12. The filter cartridge upper hole position 112 is communicated with the internal space of the filter cartridge 12, and the clean air is discharged from the filter cartridge upper hole position 112.

[0039] The spray blow subassembly 13 is arranged at least partially in the internal space of the filter cartridge 12, and the spray blow subassembly 13 can spray air flow towards the internal space of the filter cartridge 12, i.e. towards the inner wall of the filter cartridge. It can be understood that the spray blow subassembly 13 can be a single air outlet pipe, and the air outlet of the air outlet pipe is arranged opposite to the inner wall of the filter cartridge 12, such as a straight pipe, an air outlet on the side wall of the air outlet pipe, or a bent pipe with an air outlet at the end. The spray blow subassembly 13 can also be a spray blow pipeline 131 formed by a plurality of pipelines, which can spray air flow from multiple directions towards the inner wall of the filter cartridge 12, thereby improving the cleaning efficiency of the filter cartridge. The specific structure of the spray blow subassembly 13 will be described in detail below.

[0040] The driving assembly can drive the blowing assembly 13 to rotate around the center line parallel to the first direction X1. It can be understood that when the filter cartridge 12 is in a cylindrical structure, the center of the blowing assembly 13 should be arranged on the center line of the filter cartridge 12, and thus it can be understood that the driving assembly can drive the blowing assembly 13 to rotate around the center line of the filter cartridge 12. The structure of the driving assembly, for example, includes a driving motor and a belt transmission assembly, the belt transmission assembly includes a driving wheel, a driven wheel and a belt, the belt is arranged around the driving wheel and the driven wheel, the driving wheel is connected to the driving motor, and the driven wheel is connected to the part of the blowing assembly 13 outside the shell 11, so that when the driving motor is started, the rotation of the output shaft of the driving motor can drive the blowing assembly 13 to rotate through the transmission belt. Of course, the driving assembly can also have other structures, such as direct motor driving or the combination of motor and transmission assembly, such as the structure composed of driving motor and transmission chain or transmission gear, as long as it can drive the blowing assembly 13 to rotate, and the embodiment is not limited in this way.

[0041] Therefore, the filter device 1 provided by the utility model, through setting the shell 11 with the first air inlet 111 and the filter cartridge upper hole 112, setting the filter cartridge 12 with the gap between the outer side wall and the inner side wall of the shell 11 in the shell 11, and communicating the first air inlet 111 with the gap, communicating the filter cartridge upper hole 112 with the internal space of the filter cartridge 12, and setting the blowing assembly 13 at least partially in the internal space of the filter cartridge 12, the blowing assembly 13 can spray the airflow towards the filter cartridge 12. In this way, during the process that the gas to be filtered enters the shell 11 through the first air inlet 111 and then flows out of the shell 11 through the filter cartridge upper hole 112, the gas to be filtered flows through the filter cartridge 12, and the dust carried by the gas to be filtered is attached to the outer side wall of the filter cartridge 12 due to the filtering effect of the filter cartridge 12, so that the filtering of the gas to be filtered is realized. At the same time, when the blowing assembly 13 at least partially arranged in the filter cartridge 12 sprays the airflow towards the filter cartridge 12, the airflow can penetrate from the inner side wall of the filter cartridge 12 to the outer side wall of the filter cartridge 12, so that the dust attached to the outer side wall of the filter cartridge 12 falls off from the outer side wall of the filter cartridge 12 after being impacted by the airflow, falls into the bottom of the shell 11 through the gap between the filter cartridge 12 and the shell 11, and along with the rotation of the blowing assembly 13 around the first direction X1 driven by the driving assembly, the blowing assembly 13 can spray the airflow along the circumferential direction of the filter cartridge to the inner side wall of the entire filter cartridge 12, so that the cleaning of the entire filter cartridge 12 is realized, the excessive dust attached to the side wall of the filter cartridge 12 is avoided, and the better filtering effect of the filter cartridge 12 is ensured.

[0042] In some embodiments, the filter device 1 further comprises a timing switch, for example, a mechanical timing switch, a digital timing switch, a programmable timing switch, or the like, and the blowing assembly 13 further comprises a blowing control assembly, for example, a solenoid valve, an electric switch, or the like. The driving assembly and the blowing control assembly are respectively connected to the power supply through the timing switch. The timing switch can set a first preset time and a second preset time to control the start and stop of the driving assembly and the blowing control assembly. For example, the first preset time is 60 minutes, and the second preset time is 1 minute. In the initial state, the timing switch is in the off state, the driving assembly and the blowing control assembly are disconnected from the power supply, and both of them do not start working. When the first preset time is reached, that is, 60 minutes from the initial state, the timing switch switches from the off state to the on state, so that the driving assembly and the blowing control assembly are connected to the power supply, and both of them start working, that is, the blowing control assembly starts to control the blowing assembly 13 to spray air flow into the filter cartridge 12, and at the same time, the driving assembly starts to drive the blowing assembly 13 to rotate around the center line parallel to the first direction X1. When the second preset time is reached, that is, 1 minute from the first preset time, the timing switch switches from the on state to the off state, so that the driving assembly and the blowing control assembly are disconnected from the power supply, and both of them stop working. After the completion of the above-mentioned one blowing process, the timing switch re-timing to perform the next blowing process.

[0043] In the filter device 1, by setting the timing switch and the blowing control assembly, and connecting the driving assembly and the blowing control assembly to the power supply through the timing switch respectively, and setting the first preset time and the second preset time in the timing switch, when the timing switch timing reaches the first preset time, the driving assembly and the blowing control assembly start working, so that the blowing assembly 13 performs the rotating blowing action, and when the timing switch timing reaches the second preset time, the driving assembly and the blowing control assembly stop working. In this way, the working personnel can set the working state of the blowing assembly 13 and the driving assembly according to the actual use scene, without making the blowing assembly 13 and the driving assembly always running, avoiding redundant blowing operation and rotating operation, and reducing the use cost of the filter device 1. Of course, in order to achieve the above technical effects, those skilled in the art can replace the timing switch with a time relay or use a combination of an ARM microcontroller, a timer, and a counter for control or use a PLC program for control, as long as the timing start and stop of the driving assembly and the blowing control assembly can be realized, and the present embodiment is not limited too much.

[0044] In some embodiments, as Figure 1 , Figure 2As shown, the above-mentioned spray assembly 13 includes a spray pipe 131 and an air source 132. The spray pipe 131 is located inside the filter cartridge 12, and air holes 1313 are provided on the spray pipe 131. It is understood that multiple air holes 1313 can be provided on the spray pipe 131, and the positions of the multiple air holes 1313 can be adaptively adjusted according to the specific arrangement of the spray pipe 131. For example, when the spray pipe 131 is long, the number of air holes 1313 can be increased; or when the airflow velocity of the spray assembly 13 is slow, the number of air holes 1313 can be reduced. The above-mentioned air source 132 is located outside the housing 11, and the air source 132 is connected to the spray pipe 131 to supply air to the spray pipe 131. The air source 132 is, for example, a high-pressure gas cylinder or an air compressor. With the above settings, the jetting assembly 13 can spray airflow into the filter cartridge 12, thereby cleaning the dust adhering to the outer wall of the filter cartridge 12. The structure is simple and the manufacturing cost is low.

[0045] In some embodiments, such as Figure 1 , Figure 2 As shown, the above-mentioned jetting pipe 131 includes an air inlet pipe 1311 and a jet pipe 1312. The air inlet pipe 1311 is connected to the air source 132. It can be understood that the air inlet pipe 1311 is partially located outside the housing 11 for connecting to the air source 132, and partially located inside the housing 11 for connecting to the jet pipe 1312. The number of the aforementioned jet pipes 1312 is multiple. The multiple jet pipes 1312 are distributed circumferentially along the air inlet pipe 1311 and are all connected to the air inlet pipe 1311. It can be understood that the multiple jet pipes 1312 should be evenly distributed circumferentially around the air inlet pipe 1311. This can make the airflow sprayed by the jet assembly 13 into the filter cartridge 12 more uniform, thereby ensuring the cleaning effect on the filter cartridge 12. At the same time, it can make the overall weight of the jet assembly 13 evenly distributed, avoiding the jet assembly from shaking due to instability of the center of gravity when the aforementioned drive assembly drives the jet assembly 13 to perform the jetting action, thus improving the stability of the filter device 1 during operation. Multiple air holes 1313 are provided on the side of the jet pipe 1312 near the inner wall of the filter cartridge 12 along the length of the air inlet pipe 1311. In other words, multiple air holes 1313 are provided on the jet pipe 1312 along the first direction X1, and the opening direction of the air holes 1313 points towards the inner wall of the filter cartridge 12. This allows the airflow ejected from the multiple air holes 1313 to be directly sprayed onto the inner wall of the filter cartridge 12, avoiding the loss of gas energy carried by the jet airflow and improving the cleaning ability of dust adhering to the outer wall of the filter cartridge 12.

[0046] It is understandable that, such as Figure 1 , Figure 2As shown in the drawings, the air injection pipe 1312 can be a straight pipe or a U-shaped pipe. When the air injection pipe 1312 is a straight pipe, the middle part of the air injection pipe 1312 is connected to the air inlet pipe 1311, and the air injection pipe 1312 is uniformly distributed along the circumference of the air inlet pipe 1311. In this way, the length of the air injection pipe 1312 can be fully utilized, and the number of air injection pipes 1312 can be flexibly increased or decreased according to actual use requirements, so that the filter device 1 can be applied to more scenes. When the air injection pipe 1312 is a U-shaped pipe, the closed end of the U-shaped pipe is connected to the air inlet pipe 1311, and the U-shaped pipe is symmetrically arranged with the air inlet pipe 1311 as the axis of symmetry. In this way, the connection between the air injection pipe 1312 and the air inlet pipe 1311 can be facilitated, and the structure of the filter device 1 can be simplified, thereby reducing the manufacturing cost.

[0047] In some embodiments, as shown in the drawings, Figure 1 、 Figure 2 The filter device 1 further comprises a telescopic sealing baffle 14, which is located outside the shell 11. When the air injection assembly 13 injects air flow, the telescopic sealing baffle 14 can block the filter cartridge upper hole 112 formed in the shell 11. Specifically, the shape and size of the telescopic sealing baffle 14 are the same as those of the filter cartridge upper hole 112 formed in the shell 11. Of course, the shape and size of the two can be different, but it should be ensured that when the telescopic sealing baffle 14 blocks the filter cartridge upper hole 112, the orthographic projection of the filter cartridge upper hole 112 on the bottom of the shell 11 should be located within the contour of the orthographic projection of the telescopic sealing baffle 14 on the bottom of the shell 11. The telescopic sealing baffle 14 can be controlled to move by a telescopic sealing baffle control assembly, and the telescopic sealing baffle control assembly can be connected to the power supply through the timing switch described above. In this way, the telescopic sealing baffle control assembly can act synchronously with the driving assembly and the air injection control assembly, that is, when the driving assembly drives the air injection assembly 13 to rotate, and the air injection control assembly controls the air injection assembly 13 to perform the air injection action, the telescopic sealing baffle control assembly controls the telescopic sealing baffle 14 to move to the filter cartridge upper hole 112 formed in the shell 11, thereby blocking the filter cartridge upper hole 112.

[0048] Of course, as shown in the drawings, Figure 3As shown, the above-mentioned way of achieving "the telescopic sealing baffle 14 shielding the hole position 112 above the filter cartridge" can also be: the above-mentioned air inlet pipe 1311 includes a first pipe 17 and a second pipe 18, the second pipe 18 is sleeved outside a sleeve pipe 19, the first pipe 17 is sleeved outside the sleeve pipe 19, and one end of the sleeve pipe 19 inside the first pipe 17 is provided with a first annular flange 191 pointing to the inside wall of the first pipe 17, and the other end outside the first pipe 17 is connected with the telescopic sealing baffle 14 (which is also sleeved on the second pipe 18), one end of the first pipe 17 is connected with the gas source 132, and the other end is provided with a second annular flange 171 pointing to the sleeve pipe 19, and the second annular flange 171 and the first annular flange 191 are provided with an elastic element 20. When the gas source 132 supplies gas to the first pipe 17, part of the gas will flow into the air jet pipe 1312 through the second pipe 18 to make the air jet pipe 1312 jet gas flow, and part of the gas will impact the first annular flange 191 arranged on the sleeve pipe 19, push the first annular flange 191 downward, compress the elastic element 20, and at the same time make the entire sleeve pipe 19 drive the telescopic sealing baffle 14 to move downward (i.e. move in the direction close to the hole position 112 above the filter cartridge), until the telescopic sealing baffle 14 blocks the hole position 112 above the filter cartridge; when the gas source 132 stops supplying gas to the first pipe 17, the first annular flange 191 on the sleeve pipe 19 is not impacted by the gas, and at this time the first annular flange 1911 moves upward under the elastic force of the elastic element 20 between the first annular flange 191 and the second annular flange 171, and in turn drives the telescopic sealing baffle 14 to move upward (i.e. move in the direction away from the hole position 112 above the filter cartridge), at this time the hole position 112 above the filter cartridge is not blocked by the telescopic sealing baffle 14, and the exhaust function is restored.

[0049] In the above-mentioned filter device 1, by arranging the telescopic sealing baffle 14 outside the shell 11, when the air jet assembly 13 jets gas flow, the telescopic sealing baffle 14 can block the hole position 112 above the filter cartridge, so that the gas flow jetted out by the air jet assembly 13 cannot overflow from the hole position 112 above the filter cartridge, ensuring that the jet gas flow has a large kinetic energy and ensuring the jetting effect on the filter cartridge 12; at the same time, through the above-mentioned arrangement, when the air jet assembly 13 jets gas flow to clean the filter cartridge 12, the dust falling off from the outer wall of the filter cartridge 12 cannot escape to the external environment through the hole position 112 above the filter cartridge, avoiding the external environment being polluted again, and ensuring the cleaning effect of the filter device 1.

[0050] In some embodiments, the filter device 1 further comprises a support 15 arranged outside the housing 11. The spraying assembly 13 is fixedly connected with the housing 11 through the support 15. For example, the spraying assembly 13 is welded or bolted with the support 15, and the housing 11 is welded or bolted with the support 15. The support 15 is a support rod or a support block. The spraying assembly 13 is fixedly connected with the housing 11 through the support 15, thereby improving the stability of the spraying assembly 13 during spraying. Of course, in order to improve the fixing effect, a plurality of supports 15 can be arranged to simultaneously fix the spraying assembly 13 with the housing 11, thereby further improving the stability of the spraying assembly 13 during spraying.

[0051] In some embodiments, the filter device 1 further comprises an observation window 16 arranged on the housing 11. Through the observation window 16, the use condition of the filter cartridge 12 (i.e. the accumulation condition of dust on the outer sidewall of the filter cartridge 12) can be observed. It can be understood that the observation window 16 should be arranged on the sidewall of the housing 11. Through the above arrangement, the accumulation condition of dust on the filter cartridge 12 in the filter device 1 can be directly observed by the worker, and the spraying assembly 13 can be manually controlled to perform spraying according to the accumulation condition of dust on the filter cartridge 12. The first preset time and the second preset time of the timing switch can also be adaptively adjusted according to the accumulation condition of dust on the filter cartridge 12, thereby improving the flexibility of the filter device 1 during use, and making the filter device 1 more suitable for more application scenarios.

[0052] In another aspect, the utility model provides a dust removal system, this dust removal system includes cyclone separation bin 2 and the filter device 1 described in any one embodiment. The cyclone separation bin 2 is conical cylinder structure, and the top size of the cyclone separation bin 2 is greater than the bottom size.

[0053] The top of the cyclone separation bin 2 is provided with a second air inlet 211 and a second air outlet 212, the second air outlet 212 is communicated with the first air inlet 111; the gas to be filtered is introduced into the cyclone separation bin 2 through the second air inlet 211, and is introduced into the gap between the shell of the filter device and the filter cartridge through the second air outlet 212 and the first air inlet 111. The opening direction of the second air inlet 211 coincides with the tangential direction of the side wall of the cyclone separation bin 2; the opening direction of the second air outlet 212 coincides with the axis direction of the cyclone separation bin 2. The gas to be filtered is introduced into the cyclone separation bin 2 through the second air inlet 211, and after being introduced into the inside of the bin body of the cyclone separation bin 2 along the tangential direction of the side wall of the cyclone separation bin 2, it rotates along the side wall of the cyclone separation bin 2 to form an outer vortex from top to bottom, so that the solid particles or liquid droplets with large inertia centrifugal force in the gas to be filtered are thrown to the side wall of the cyclone separation bin 2, and are separated from the gas to be filtered. Due to the centrifugal effect, a low pressure area is formed in the central region of the outer vortex, and the gas after preliminary dust removal is attracted by the central low pressure area to form an inner vortex rotating from bottom to top. The second air outlet 212 is communicated with the first air inlet 111 of the filter device 1, so that the gas after preliminary dust removal can be introduced into the filter device 1 along the flow direction of the inner vortex for further fine filtration.

[0054] Therefore, the dust removal system is provided with the cyclone separation bin 2 connected with the filter device 1, so that the gas to be filtered can be introduced into the cyclone separation bin 2 through the second air inlet 211 of the cyclone separation bin 2 for preliminary dust removal, and then introduced into the filter device 1 through the second air outlet 212 and the first air inlet 111 of the filter device 1 for fine filtration, which significantly improves the cleaning effect of the gas to be filtered.

[0055] In some embodiments, the dust removal system further comprises a fan 3. The fan 3 is provided with a third air inlet 31 and a third air outlet 32, the third air inlet 31 is communicated with the second air outlet 212 of the cyclone separation bin 2, and the third air outlet 32 is communicated with the first air inlet 111 of the filter device 1. Through the above arrangement, the gas after preliminary dust removal by the cyclone separation bin 2 can first flow to the fan 3, and then flow to the filter device 1 after being accelerated by the fan 3, so that the flow speed of the gas to be filtered can be avoided to be too low, and the filtration efficiency and filtration effect can be affected.

[0056] In some embodiments, the housing 11 of the filter device 1 is provided with a first dust accumulation end 113 opposite to the upper hole 112 of the filter cartridge, for example, the upper hole 112 of the filter cartridge is located at the top, and the first dust accumulation end 113 is located at the bottom, the bottom of the cyclone separation bin 2 is provided with a second dust accumulation end 22, the first dust accumulation end 113 is communicated with the second dust accumulation end 22, for example, the two are communicated through a connecting pipe. Through the above arrangement, the dust accumulated in the first dust accumulation end 113 of the filter device 1 can be sucked into the second dust accumulation end 22 of the cyclone separation bin 2 by the negative pressure in the cyclone separation bin 2 (the gas flow rate in the cyclone separation bin 2 is fast to form a negative pressure), which greatly improves the dust holding capacity of the filter device 1, avoids the dust in the filter device 1 from being accumulated too much to affect the filtering effect, and also enables the dust removal system to adapt to a working environment with a large amount of dust, thereby improving the applicability of the dust removal system.

[0057] In addition, the dust removal system further comprises a dust accumulation device 4, for example, a dust collecting barrel or a dust accumulation trolley. The dust accumulation device 4 is connected to the second dust accumulation end 22 of the cyclone separation bin 2 and is used to collect the dust in the second dust accumulation end 22. Through such an arrangement, the dust accumulated in the cyclone separation bin 2 can be conveniently cleaned, and the dust in the cyclone separation bin 2 is prevented from being accumulated too much to affect the dust removal effect.

[0058] In some embodiments, the second air inlet 211 of the cyclone separation bin 2 is provided with a Venturi tube 5, and the gas to be filtered is introduced into the interior of the cyclone separation bin 2 through the Venturi tube 5. The Venturi tube 5 comprises a converging pipe 51, a throat pipe 52 and a diffuser pipe 53 connected in sequence, wherein the diffuser pipe 53 is communicated with the second air inlet 211, and the diameter of the throat pipe 52 is smaller than the diameter of the converging pipe 51 and the diameter of the diffuser pipe 53. By providing the Venturi tube 5 at the second air inlet 211 of the cyclone separation bin 2, the separation efficiency of the cyclone separation bin 2 for dust can be improved.

[0059] Obviously, the above embodiments of the utility model are only examples for clearly explaining the utility model, and are not a limitation on the embodiments of the utility model. For ordinary skilled persons in the art, various obvious changes, re-adjustments and replacements can be made without departing from the protection scope of the utility model. Here, it is unnecessary and impossible to enumerate all the embodiments. Any modification, equivalent replacement and improvement made within the spirit and principle of the utility model should be included in the protection scope of the utility model claim.

Claims

1. A filtration device, characterized in that, include: The housing (11) is provided with a first air inlet (111) and a filter cartridge upper hole (112); the housing (11) is provided with a filter cartridge (12) inside, and there is a gap between the outer side wall of the filter cartridge (12) and the inner side wall of the housing (11); the first air inlet (111) communicates with the gap, and the filter cartridge upper hole (112) communicates with the internal space of the filter cartridge (12); A jetting assembly (13) is at least partially disposed in the internal space of the filter cartridge (12); the jetting assembly (13) is capable of jetting airflow into the interior of the filter cartridge (12); The drive assembly is capable of driving the jetting assembly (13) to rotate about a centerline parallel to the first direction (X1) to jet airflow along the circumference of the filter cartridge (12) onto the inner wall of the filter cartridge (12).

2. The filtration device according to claim 1, characterized in that, The blowing assembly (13) includes: A blow pipe (131) is provided in the internal space of the filter cartridge (12); the blow pipe (131) is provided with air holes (1313); An air source (132) is located outside the housing (11); the air source (132) is connected to the jet pipe (131) and is used to supply air to the jet pipe (131).

3. The filtration device according to claim 2, characterized in that, The jetting pipeline (131) includes: An air intake pipe (1311) is connected to the air source (132); Multiple jet pipes (1312) are distributed circumferentially along the air intake pipe (1311) and are all connected to the air intake pipe (1311). The jet pipes (1312) near the inner wall of the filter cartridge (12) are provided with multiple air holes (1313) along the length direction of the air intake pipe (1311). The air intake pipe (1311) and the multiple jet pipes (1312) are both extended along the first direction (X1).

4. The filtration device according to claim 1, characterized in that, It also includes a telescopic sealing baffle (14), which is located outside the housing (11); when the jet assembly (13) jets airflow, the telescopic sealing baffle (14) can block the hole (112) above the filter cartridge.

5. The filtration device according to claim 1, characterized in that, It also includes a support member (15) located outside the housing (11); the part of the blowing assembly (13) located outside the housing (11) is fixedly connected to the housing (11) through the support member (15).

6. The filtration device according to claim 1, characterized in that, It also includes an observation window (16) provided in the housing (11), through which the usage of the filter cartridge (12) can be observed.

7. A dust removal system, characterized in that, Includes a cyclone separator (2) and a filtration device as described in any one of claims 1-6; The top of the cyclone separator (2) is provided with a second air inlet (211) and a second air outlet (212); the second air outlet (212) is connected to the first air inlet (111); the gas to be filtered is introduced into the cyclone separator (2) through the second air inlet (211), and is introduced into the gap through the second air outlet (212) and the first air inlet (111).

8. The dust removal system according to claim 7, characterized in that, It also includes a fan (3); the fan (3) is provided with a third air inlet (31) and a third air outlet (32); the third air inlet (31) is connected to the second air outlet (212), and the third air outlet (32) is connected to the first air inlet (111).

9. The dust removal system according to claim 7, characterized in that, The housing (11) of the filter device is provided with a first dust accumulation end (113) opposite to the hole (112) above the filter cartridge, and the bottom of the cyclone separator (2) is provided with a second dust accumulation end (22). The first dust accumulation end (113) and the second dust accumulation end (22) are connected. The dust removal system also includes a dust collection device (4), which is connected to the second dust collection end (22) and is used to collect dust in the second dust collection end (22).

10. The dust removal system according to any one of claims 7-9, characterized in that, A venturi tube (5) is provided at the second air inlet (211), and the gas to be filtered is introduced into the cyclone separator (2) through the venturi tube (5).

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