Filtering mechanism and cyclone dust collector

Abstract

The filtering mechanism comprises a collecting part, a connecting pipe is arranged in the collecting part, a collecting pipe is arranged on the connecting pipe, a second filtering plate is arranged on the collecting pipe, a plurality of second filtering holes are formed in the second filtering plate in a circumferential array mode, and a flow guide plate extending into the connecting pipe is arranged on the collecting part. The flow guide plate is arc-shaped, and a channel is arranged between the collecting part and the connecting pipe and located below the flow guide plate. According to the filtering mechanism and the cyclone dust collector provided by the utility model, through the connecting pipe in the collecting part, when gas flows back, the gas enters the collecting pipe, dust is filtered through the second filtering plate in the collecting pipe, and fine particle dust is filtered through the second filtering holes in the second filtering plate; small dust particles are guided into the collecting part through the flow guide plate in the collecting part, and the small dust particles enter the channel and then enter the collecting part to be collected.

Description

Technical Field

[0001] The utility model relates to the technical field of cyclone dust collectors, in particular to a filtering mechanism and a cyclone dust collector. Background Art

[0002] Cyclone dust collector is a common industrial dust removal equipment. Its main working principle is to separate dust from airflow through rotating airflow and centrifugal force, and capture it on the wall, and then use gravity to make the dust particles fall into the ash hopper. This dust collector is characterized by simple structure, easy maintenance, large processing capacity, and strong adaptability. It can be used in high temperature, high pressure and corrosive environments.

[0003] According to the publication (announcement) number: CN207770087U, the publication (announcement) date: 2018-08-28, a filtering mechanism of a cyclone separation dust collector is disclosed, including a supporting bracket, a trapezoidal funnel is fixedly connected to the upper end of the supporting bracket, a cyclone separator body is fixedly connected above the trapezoidal funnel, the cyclone separator body is conductively connected to the air inlet duct through the air inlet, a horizontal baffle is fixedly connected to the top of the cyclone separator body, a first filter layer and a second filter layer are fixedly connected to the middle of the cylindrical baffle, a pressure sensor is fixedly connected inside the second filter layer, a main controller is fixedly connected to the upper left side of the control device, an exhaust chamber is fixedly connected to the upper end of the cyclone separator body, a horizontal plate is fixedly connected to the inner surface of the middle part of the exhaust chamber, an infrared detector is fixedly connected to the lower surface of the horizontal plate, a connecting plate is fixedly connected to the upper end of the exhaust chamber, an arc-shaped top cover is fixedly connected above the connecting plate, and an air outlet is conductively connected above the arc-shaped top cover.

[0004] It is known from the above patents and prior art that the operation of the cyclone dust collector depends on centrifugal force, and the magnitude of the centrifugal force is related to the mass and size of the dust particles. Dust particles with large mass and size are subject to greater centrifugal force, and are therefore easier to separate. On the contrary, dust particles with small mass and size are subject to less centrifugal force and are more likely to be discharged with the air flow. Although a filter plate is provided near the air outlet, a filter plate with smaller filter holes will affect the wind speed, and a filter plate with larger filter holes will have a poor filtering effect. Utility Model Content

[0005] The utility model aims to provide a filtering mechanism and a cyclone dust collector, which enables the cyclone dust collector to filter small particles of dust.

[0006] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions: a filtering mechanism, comprising a collecting part, a connecting pipe is arranged in the collecting part, a collecting pipe is arranged on the connecting pipe, a second filter plate is arranged on the collecting pipe, a plurality of second filter holes arranged in a circular array are provided on the second filter plate, a guide plate extending into the connecting pipe is arranged on the collecting part, the guide plate is arc-shaped, a channel is arranged between the collecting part and the connecting pipe, and the channel is located below the guide plate.

[0007] Preferably, a first filter plate is disposed at the bottom of the second filter plate, and a plurality of first filter holes arranged in a linear array are formed on the first filter plate.

[0008] A cyclone dust collector comprises the filtering mechanism described in the above scheme, and comprises a shell, and the collecting pipe is arranged in the shell.

[0009] Preferably, a dust box is provided at the bottom of the shell, a carrying plate is provided in the dust box, and the carrying plate is slidably arranged in the dust box.

[0010] Preferably, a slide groove is provided on the dust collecting box, an observation block is provided on the carrying plate, and the observation block is slidably arranged in the slide groove.

[0011] Preferably, the observation block is located outside the dust box in a default state.

[0012] Preferably, an elastic member is disposed at the bottom of the carrying plate, and the other end of the elastic member is disposed in the dust collecting box.

[0013] Preferably, the elastic member is a spring.

[0014] In the above technical scheme, a filtering mechanism and a cyclone dust collector provided by the utility model have the following beneficial effects: through the connecting pipe in the collecting part, the gas is refluxed into the collecting pipe, the dust is filtered through the second filter plate in the collecting pipe, the fine dust particles are filtered through the second filter holes on the second filter plate, the small dust particles are guided into the collecting part through the guide plate in the collecting part, the small dust particles enter the channel, and then enter the collecting part for collection. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present utility model. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0016] Figure 1 The overall structural diagram provided for the embodiment of the utility model;

[0017] Figure 2 A schematic diagram of a cross-sectional structure provided for an embodiment of the utility model;

[0018] Figure 3 A schematic structural diagram of a load-bearing plate and an elastic member provided in an embodiment of the utility model.

[0019] Description of reference numerals:

[0020] 1. Shell; 11. Collecting part; 13. Connecting pipe; 131. Collecting pipe; 15. Dust box; 16. Observation block; 17. Slide; 18. Loading plate; 19. Elastic member; 20. First filter plate; 21. First filter hole; 22. Second filter plate; 23. Second filter hole; 24. Guide plate; 25. Channel. DETAILED DESCRIPTION

[0021] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0022] like Figure 1-3 As shown, a filtering mechanism includes a collecting portion 11, a connecting pipe 13 is arranged in the collecting portion 11, a collecting pipe 131 is arranged on the connecting pipe 13, a second filter plate 22 is arranged on the collecting pipe 131, a plurality of second filter holes 23 arranged in a circular array are opened on the second filter plate 22, a guide plate 24 extending into the connecting pipe 13 is arranged on the collecting portion 11, the guide plate 24 is arc-shaped, a channel 25 is arranged between the collecting portion 11 and the connecting pipe 13, and the channel 25 is located below the guide plate 24.

[0023] The invention comprises a shell 1 , in which a collecting pipe 131 is arranged.

[0024] Specifically, when in use, the collecting pipe 131 in the shell 1 collects dust particles, and the dust particles enter the second filter holes 23 on the second filter plate 22 and are filtered through the second filter holes 23. If the second filter holes 23 cannot filter, the gas carrying small particles contacts the guide plate 24, and is guided by the shape of the guide plate 24 to flow onto the channel 25, and then enters the collecting part 11. The collecting part 11 filters the fine dust particles to complete the collection of fine particles.

[0025] In the above scheme, through the connecting pipe 13 in the collecting part 11, the gas is refluxed into the collecting pipe 131, the dust is filtered through the second filter plate 22 in the collecting pipe 131, the fine dust particles are filtered through the second filter holes 23 on the second filter plate 22, the small dust particles are guided into the collecting part 11 through the guide plate 24 in the collecting part 11, and the small dust particles enter the channel 25, and then enter the collecting part 11 for collection.

[0026] As an embodiment further provided by the present invention, according to Figure 1 , Figure 2 and Figure 3 As shown, a first filter plate 20 is disposed at the bottom of the second filter plate 22 , and a plurality of first filter holes 21 arranged in a linear array are formed on the first filter plate 20 .

[0027] Specifically, the wind carries small particles and contacts the first filter plate 20 first, and the first filter holes 21 on the first filter plate 20 filter the dust particles in the first step.

[0028] As an embodiment further provided by the present invention, according to Figure 1 , Figure 2 and Figure 3 As shown, a dust box 15 is disposed at the bottom of the housing 1 , a carrying plate 18 is disposed inside the dust box 15 , and the carrying plate 18 is slidably disposed inside the dust box 15 .

[0029] Furthermore, a slide groove 17 is provided on the dust box 15 , and an observation block 16 is provided on the carrying plate 18 , and the observation block 16 is slidably disposed in the slide groove 17 .

[0030] Furthermore, an elastic member 19 is disposed at the bottom of the carrying plate 18 , and the other end of the elastic member 19 is disposed in the dust box 15 .

[0031] Specifically, the large particles move downward by centrifugal force, enter the dust box 15, and fall on the supporting plate 18 in the dust box 15. At this time, the elastic member 19 at the bottom of the supporting plate 18 moves downward. At this time, the elastic member 19 is subjected to force. When the supporting plate 18 moves downward, it drives the observation block 16 to move downward. When the observation block 16 moves into the dust box 15, it indicates that the dust box 15 is full of large particles and needs to be cleaned.

[0032] Working principle: When in use, the collecting tube 131 in the shell 1 collects dust particles, and the dust particles enter the second filter holes 23 on the second filter plate 22 and are filtered through the second filter holes 23. If the second filter holes 23 cannot filter, the gas carrying small particles contacts the guide plate 24, and is guided by the shape of the guide plate 24 to flow to the channel 25, and then enters the collecting part 11. The collecting part 11 filters the fine particles of dust to complete the collection of fine particles. At the same time, large particles move downward through centrifugal force and enter the dust box 15, and fall on the supporting plate 18 in the dust box 15. At this time, the elastic member 19 at the bottom of the supporting plate 18 moves downward. At this time, the elastic member 19 is under force. When the supporting plate 18 moves downward, it drives the observation block 16 to move downward. When the observation block 16 moves into the dust box 15, it means that the dust box 15 is full of large particles and needs to be cleaned.

[0033] The above only describes some exemplary embodiments of the present invention by way of illustration. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A filtering mechanism, characterized in that: The invention comprises a collecting portion (11), wherein a connecting pipe (13) is arranged in the collecting portion (11), a collecting pipe (131) is arranged on the connecting pipe (13), a second filter plate (22) is arranged on the collecting pipe (131), a plurality of second filter holes (23) arranged in a circumferential array are formed on the second filter plate (22), a guide plate (24) extending into the connecting pipe (13) is arranged on the collecting portion (11), the guide plate (24) is arc-shaped, a channel (25) is arranged between the collecting portion (11) and the connecting pipe (13), and the channel (25) is located below the guide plate (24).

2. A filtering mechanism according to claim 1, characterized in that: A first filter plate (20) is arranged at the bottom of the second filter plate (22), and the first filter plate (20) is provided with a plurality of first filter holes (21) arranged in a linear array.

3. A cyclone dust collector, characterized in that: The filtering mechanism comprises the filtering mechanism according to any one of claims 1 to 2, comprising a housing (1), wherein the collecting pipe (131) is arranged in the housing (1).

4. A cyclone dust collector according to claim 3, characterized in that: A dust box (15) is provided at the bottom of the housing (1), a carrying plate (18) is provided inside the dust box (15), and the carrying plate (18) is slidably arranged inside the dust box (15).

5. A cyclone dust collector according to claim 4, characterized in that: The dust collecting box (15) is provided with a slide groove (17), and the carrying plate (18) is provided with an observation block (16), and the observation block (16) is slidably arranged in the slide groove (17).

6. A cyclone dust collector according to claim 5, characterized in that: In a default state, the observation block (16) is located outside the dust box (15).

7. A cyclone dust collector according to claim 6, characterized in that: An elastic member (19) is provided at the bottom of the carrying plate (18), and the other end of the elastic member (19) is arranged in the dust collecting box (15).

8. A cyclone dust collector according to claim 7, characterized in that: The elastic member (19) is a spring.

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