Air filtering device for environmental protection engineering

Abstract

The utility model relates to the technical field of air filtering, in particular to an air filtering device for environmental protection engineering, which comprises a pre-filtering box body for intercepting large-particle dust and a suction opening at the bottom end of the pre-filtering box body, and a plurality of clamping blocks capable of sliding in a reciprocating manner are detachably mounted on the inner side wall of the pre-filtering box body. A first filter screen used for pre-filtering is clamped on the inner side walls of the multiple clamping blocks, an isolation plate is installed on the side wall, in the sliding direction of the clamping blocks, of the pre-filtering box body, a cleaning box body is detachably installed on the opposite side of the isolation plate, and the clamping blocks penetrate through and extend to the outer side wall of the cleaning box body. The length of the clamping block is increased, and the racks are arranged on the two sides of the clamping block, so that the first filter screen can be moved from the pre-filtering box body to the cleaning box body under the condition that the gears rotate, and in the moving process, the cleaning assembly on the upper portion cleans filtering holes in the first filter screen, and the first filter screen is cleaned from top to bottom; and the inner side of the first filter screen is cleaned, and the cleaning effect is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of air filtration, in particular to an air filtration device for environmental protection engineering. Background Art

[0002] Air filtration devices are used in the field of environmental engineering to treat harmful gases in industrial production processes. By using this device, the emission of harmful gases can be effectively reduced, and the pollution to the environment can be reduced. Air filtration devices are usually composed of a variety of filters, including pre-filters, activated carbon filters, and HEPA filters. The main function of the pre-filter is to filter large particles of dust, hair and other substances. These larger particles are effectively intercepted, thereby preventing the finer filters from being blocked, ensuring the smooth operation of the entire filtration system, so the pre-filter is more prone to clogging than other filters.

[0003] Chinese patent number CN218653514U discloses an air filter device for environmental protection engineering, which achieves the effect of cleaning the air filter device by adopting a scraper to clean the dust adhered to the bottom of the first filter while pulling the first filter through a handle. However, the above device may not be able to install multiple first filters to intercept larger particles, and the scraper may not be able to clean the dust particles adhered to the inner side of the first filter, which affects the filtering effect of the filtering device, increases the maintenance frequency, and increases the maintenance cost.

[0004] Therefore, it is necessary to invent an air filter for environmental protection engineering to solve the above problems. Utility Model Content

[0005] In order to address the deficiencies of the prior art, the purpose of the utility model is to provide an air filtration device for environmental protection projects, which solves the problem that multiple first filter screens may not be installed to intercept larger particles during the use of the above-mentioned device, and the dust particles adhered to the inside of the first filter screen may not be cleaned by the scraper, affecting the filtering effect of the filtering device, increasing the maintenance frequency and increasing the maintenance cost.

[0006] In order to achieve the above objectives, the utility model adopts the following technical solutions:

[0007] The filter element is a filter element for filtering out dust from the filter element, and a filter element is provided on the filter element's inner wall to filter out the dust.

[0008] As a preferred solution of the utility model, the cleaning component is arranged in a trapezoidal shape, a plurality of air outlet holes vertically downward are provided on the bottom wall of the cleaning component, and the bottom end of the cleaning component is arranged in an inclined surface.

[0009] As a preferred solution of the utility model, the top of the gear is connected to a rotating assembly for rotation, the top of the rotating assembly is commonly connected to a connecting plate, and a telescopic assembly for adjusting the height of the rotating assembly is provided in the middle of the connecting plate.

[0010] As a preferred solution of the utility model, the isolation plate is provided with a through groove matched with the outer side wall of the clamping block and the first filter screen.

[0011] As a preferred solution of the utility model, a filter chamber for secondary filtration connected to the pre-filter chamber is installed on the upper surface of the pre-filter chamber, and a plurality of second filter screens are arranged inside the filter chamber.

[0012] As a preferred solution of the present invention, the first filter is made of metal, and the second filter is composed of an activated carbon filter and a HEPA filter.

[0013] In the above technical solution, the technical effects and advantages provided by the utility model are:

[0014] In the utility model, by extending the length of the clamping block and arranging racks on both sides thereof, the first filter screen can be moved from the pre-filter box to the cleaning box when the gear rotates. During the movement, the cleaning component above cleans the filter holes in the first filter screen, and cleans the inner side of the first filter screen from top to bottom, thereby improving the cleaning effect. The telescopic component controls the distance of the rotating component, and the control gear drives different racks to rotate, thereby achieving the purpose of cleaning different first filter plates. A plurality of different first filter plates can be cleaned, thereby improving the filtering efficiency and meeting different usage requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 This is a partial cross-sectional structural diagram of the pre-filter box of the utility model;

[0017] Figure 3 This is a schematic diagram of the structure of the utility model after the cleaning box is removed;

[0018] Figure 4 For this utility model Figure 3 Enlarged structural diagram at A in the middle.

[0019] Explanation of the accompanying drawings: 1. Pre-filter box; 2. Cleaning box; 3. Dust collecting assembly; 4. Clamping block; 5. First filter screen; 6. Isolation plate; 7. Filter compartment; 8. Second filter screen; 9. Exhaust port; 10. Cleaning assembly; 11. Telescopic assembly; 12. Rotating assembly; 13. Connecting plate; 14. Rack; 15. Gear. DETAILED DESCRIPTION

[0020] The utility model is further described below in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the utility model, and cannot be used to limit the protection scope of the utility model.

[0021] The utility model provides Figure 1-4The air filter device for environmental protection engineering shown in the figure comprises a pre-filter box 1 for intercepting large particles of dust and an air outlet 9 at the bottom end of the pre-filter box 1, a plurality of reciprocatingly slidable clamping blocks 4 are detachably mounted on the inner wall of the pre-filter box 1, a plurality of the inner walls of the clamping blocks 4 clamp a first filter screen 5 for pre-filtration, a side wall of the pre-filter box 1 along the sliding direction of the clamping blocks 4 is mounted with an isolation plate 6, a cleaning box 2 is detachably mounted on the opposite side of the isolation plate 6, the clamping block 4 penetrates and extends to the outer wall of the cleaning box 2, and a useful filter is mounted on one end of the upper surface of the cleaning box 2 near the isolation plate 6 A cleaning component 10 for cleaning dust is provided, and a dust collecting component 3 for collecting dust is installed at a position on the lower surface of the cleaning box 2 corresponding to the cleaning component 10. A rack 14 is provided on the inner wall of the clamping block 4 located inside the cavity of the cleaning box 2. A gear 15 meshing with the rack 14 is rotatably provided at one end of the cleaning box 2 away from the isolation plate 6. The dust collecting component 3 can choose to use a dust collecting bag or a liquid collection box connected to a pipe. The cleaning component 10 can choose to transport cleaning liquid or high-pressure gas to remove dust or clean the first filter 5, thereby reducing the difficulty and cost of maintenance.

[0022] The cleaning component 10 is arranged in a trapezoidal shape, and a plurality of vertical downward air outlet holes are provided on the bottom wall of the cleaning component 10. The bottom end of the cleaning component 10 is arranged as an inclined surface. The purpose of setting the inclined surface is to make it more difficult for the sprayed liquid or gas to flow from the isolation plate 6 into the pre-filter box 1, and at the same time to gather the flow direction of the liquid or gas to improve the cleaning efficiency.

[0023] The top of the gear 15 is connected to a rotating component 12 for rotation, and the top of the rotating component 12 is commonly connected to a connecting plate 13. A telescopic component 11 for adjusting the height of the rotating component 12 is provided in the middle of the connecting plate 13. The telescopic component 11 is used to adjust the gear 15 to engage with different racks 14, thereby driving different clamping blocks 4 and the first filter screen 5 to slide and clean.

[0024] The isolation plate 6 is provided with a through groove adapted to the outer wall of the clamping block 4 and the first filter screen 5. When the first filter screen 5 is entirely inside the pre-filtration box 1, the gas will not flow into the filter chamber 7 along the through groove provided in the isolation plate 6, thereby ensuring the filtering effect.

[0025] A filter chamber 7 for secondary filtration connected to the pre-filter box 1 is installed on the upper surface of the pre-filter box 1. A plurality of second filter screens 8 are arranged inside the filter chamber 7 to ensure that gas flows in through the air inlet, is intercepted by the first filter screen 5, and then flows into the second filter screen 8 to ensure the filtering effect. The second filter screen 8 is arranged as a whole in the filter chamber 7 to facilitate subsequent overall replacement and reduce the difficulty of replacement.

[0026] The first filter 5 is made of metal, and the second filter 8 is composed of an activated carbon filter and a HEPA filter. Compared with plastic material, the metal material can increase the service life of the first filter 5 and can withstand more times of high-pressure gas flushing and liquid immersion.

[0027] During use of the utility model, the corresponding dust collecting assembly 3 can be replaced, and the cleaning assembly 10 can spray high-pressure gas or cleaning liquid to achieve dust removal or cleaning of the first filter 5. By extending the length of the clamping block 4 and arranging racks 14 on both sides thereof, the first filter 5 can be moved from the pre-filter box 1 to the cleaning box 2 when the gear 15 rotates. During the movement, the cleaning assembly 10 above cleans the filter holes in the first filter 5, and cleans the inner side of the first filter 5 from top to bottom, thereby improving the cleaning effect. The telescopic assembly 11 controls the distance of the rotating assembly 12, and controls the gear 15 to drive different racks 14 to rotate, thereby achieving the purpose of cleaning different first filter plates. A plurality of different first filter plates can be cleaned, thereby improving the filtering efficiency and meeting different usage requirements.

[0028] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. An air filter device for environmental protection engineering, characterized in that: The invention comprises a pre-filter box (1) for intercepting large dust particles and an air outlet (9) at the bottom end of the pre-filter box (1); a plurality of reciprocatingly slidable clamping blocks (4) are detachably mounted on the inner side wall of the pre-filter box (1); a plurality of the inner side walls of the clamping blocks (4) clamp a first filter screen (5) for pre-filtering; a partition plate (6) is mounted on one side wall of the pre-filter box (1) along the sliding direction of the clamping blocks (4); a cleaning box (2) is detachably mounted on the opposite side of the partition plate (6); the clamping blocks (4) penetrate and extend to the cleaning box (2); The outer wall of the box body (2) is provided with a cleaning assembly (10) for cleaning dust at one end of the upper surface of the cleaning box body (2) close to the isolation plate (6), and a dust collecting assembly (3) for collecting dust is installed at a position corresponding to the cleaning assembly (10) on the lower surface of the cleaning box body (2), and a rack (14) is provided on the inner wall of the clamping block (4) located inside the cavity of the cleaning box body (2), and a gear (15) meshing with the rack (14) is rotatably provided on one end of the cleaning box body (2) away from the isolation plate (6).

2. The air filter device for environmental protection engineering according to claim 1, characterized in that: The cleaning component (10) is arranged in a trapezoidal shape, a plurality of air outlet holes vertically downward are provided on the bottom wall of the cleaning component (10), and the bottom end of the cleaning component (10) is arranged in an inclined surface.

3. The air filter device for environmental protection engineering according to claim 1, characterized in that: The top end of the gear (15) is connected to a rotating assembly (12) for rotation, the top end of the rotating assembly (12) is commonly connected to a connecting plate (13), and a telescopic assembly (11) for adjusting the height of the rotating assembly (12) is arranged in the middle of the connecting plate (13).

4. The air filter device for environmental protection engineering according to claim 1, characterized in that: The isolation plate (6) is provided with a through groove adapted to the outer side wall of the clamping block (4) and the first filter screen (5).

5. The air filter device for environmental protection engineering according to claim 1, characterized in that: A filter chamber (7) for secondary filtration, which is in communication with the pre-filtering box (1), is installed on the upper surface of the pre-filtering box (1), and a plurality of second filter screens (8) are arranged inside the filter chamber (7).

6. The air filter device for environmental protection engineering according to claim 5, characterized in that: The first filter screen (5) is made of metal, and the second filter screen (8) is composed of an activated carbon screen and a HEPA filter screen.

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