Atmospheric pollution treatment equipment

By setting ring columns and sliding blocks in air pollution control equipment, the cleaning of dust in the outer wall of the spray pipe is achieved, the problem of jet tube blockage is solved, and the efficiency of governance is improved.

CN119367903AInactive Publication Date: 2025-01-28NANJING INST OF ENVIRONMENTAL SCI MINIST OF ECOLOGY & ENVIRONMENT OF THE PEOPLES REPUBLIC OF CHINA
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Patent Information

Application Number
CN202411305604.7
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-09-19
Publication Date
2025-01-28
Estimated Expiration
Not applicable · inactive patent

AI Technical Summary

Technical Problem

The spray pipes of existing air pollution control equipment are prone to blockage after long-term use, resulting in a decrease in dust reduction efficiency.

Method used

A kind of air pollution control equipment is designed. By setting up ring columns and sliding blocks, the ring column moves up and down under the action of the L -shaped column, driving the brush to clean up the dust on the outer wall of the spray pipe to avoid blocking.

Benefits of technology

Effectively reduce the accumulation and blockage of dust from the outer wall of the spray pipe, and improve the efficiency of spray pipes on air pollution control.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention discloses atmospheric pollution treatment equipment, and relates to the technical field of atmospheric pollution. The device comprises a box body, the upper side of the box body is rotatably matched with a rotating disc, the upper side of the box body is slidably matched with a T-shaped block, a rotating plate is rotatably matched between the T-shaped block and the rotating disc, one side of the T-shaped block is provided with an L-shaped column, and one side of the L-shaped column is slidably matched with an annular column; the telescopic pieces are arranged on the outer side wall of the box body in a sliding fit mode, and spraying pipes are arranged on the upper sides of the telescopic pieces. According to the invention, through the arrangement of the annular column, the annular column reciprocates up and down under the action of the L-shaped column, and dust accumulated on the outer side wall of the spray pipe is cleaned through the moving annular column, so that the problem of dust accumulation on the outer side wall of the spray pipe is reduced, and the problem of blockage on the outer side wall of the spray pipe is reduced; and the air pollution treatment efficiency of the spray pipe is improved.
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Description

Technical Field

[0001] The invention belongs to the field of air pollution, and in particular relates to air pollution control equipment. Background Art

[0002] Atmospheric pollutants are caused by human activities or natural processes. Certain substances enter the atmosphere and participate in the atmospheric circulation process. After a certain residence time, they are removed from the atmosphere through chemical reactions, biological activities and physical precipitation in the atmosphere. If the output rate is lower than the input rate, they will accumulate in the atmosphere, causing the concentration of certain substances in the atmosphere to increase. When the concentration rises to a certain level, it will directly or indirectly cause acute and chronic harm to humans, organisms or materials, and the atmosphere will be polluted. In life, there are many factories that emit a lot of dust. Long-term emissions can affect people's daily lives. At present, most of them use the method of spraying clean water to wet the dust and suspended particles in the air to achieve the purpose of dust reduction. Atmospheric pollution is often removed through atmospheric pollution control equipment.

[0003] The patent application with the announcement number CN116059764B discloses an air pollution control device. Paragraph 0082 of its specification discloses: "First, the mounting base can be mounted on a mobile device carrying a water tank to facilitate the movement of the overall dust reduction device on the mounting base, and a lifting mechanism can be provided to drive the mounting base and the spray adjustment cylinder to rise to a specified height, wherein the spray adjustment cylinder is provided with a controller to control various electrical devices on the spray adjustment cylinder, and then, through the set spacing adjustment component, wherein the spacing adjustment component has two working modes, one of which is to adjust multiple spray tubes to a specified position and spray water mist in a directional manner, and the other is to make the spray The tube is in a reciprocating dynamic spray mode, so that it can be set according to the dust distribution in the dust reduction range. No further details will be given here. Among them, multiple spray tubes can extend out of the spray adjustment barrel through multiple movable slots. When the working mode of the spacing adjustment component is determined, the clean water can be transported to the multiple spray tubes in the form of water mist through the spray delivery component through the external pressurizing equipment, and sprayed to the top of the spray adjustment barrel. Through the set spray adjustment mechanism, the distance between the multiple spray tubes and the center of the spray adjustment barrel can be changed according to the distribution of dust in the air, so as to carry out dust reduction work in areas with high dust concentration or more dispersed dust, thereby helping to improve the dust reduction effect and the efficiency of air pollution control work.

[0004] However, in actual use, it is necessary to use a spray tube to carry out dust reduction work in areas with high dust concentration or more dispersed dust. Since there is no cleaning structure around the spray tube, it is easy for the spray tube to be blocked when used for a long time. If the blockage is not cleared in time, the efficiency of air pollution control will be reduced.

[0005] Therefore, an air pollution control device is proposed to solve the above-mentioned drawbacks. Summary of the invention

[0006] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide an air pollution control device.

[0007] In order to solve the above technical problems, the basic concept of the technical solution adopted by the present invention is:

[0008] An air pollution control device comprises a box, a rotating disk is rotatably matched on the upper side of the box, a T-shaped block is slidably matched on the upper side of the box, a rotating plate is rotatably matched between the T-shaped block and the rotating disk, an L-shaped column is installed on one side of the T-shaped block, and a ring column is slidably matched on one side of the L-shaped column;

[0009] A plurality of telescopic parts are slidably matched on the outer side wall of the box body, a spray tube is installed on the upper side of the telescopic part, the outer side wall of the spray tube is matched with the inner side wall of the annular column, and the upper side of the telescopic part is installed on the lower end of the L-shaped column.

[0010] Optionally, in order to ensure the stability of the rotating disk during rotation, a box cover is installed at the upper opening of the box body, and a water inlet, a placement slot, and a plurality of T-shaped slots are provided on the upper side of the box cover. A first motor is installed inside the placement slot, and a rotating shaft is installed at the output end of the first motor. The rotating disk is installed on one end of the rotating shaft, and the rotating disk rotatably fits inside the placement slot.

[0011] Optionally, in order to improve the stability of the rotating plate during rotation, a plurality of first fixing rods are installed on the upper side of the rotating plate, a first through hole is opened at the first end of the rotating plate, the first fixing rod is located inside the first through hole, the T-shaped block slides inside the T-slot, a second fixing rod is installed on the upper side of the T-shaped block, a second through hole is opened at the second end of the rotating plate, and the second fixing rod is located inside the second through hole.

[0012] Optionally, in order to drive the threaded rod to rotate, a fixed block is installed on the upper side of the T-shaped block, one end of the L-shaped column is installed on one side of the fixed block, a first guide groove is opened on one side of the L-shaped column, a second motor is installed inside the first guide groove, and a threaded rod is installed on the output end of the second motor.

[0013] Optionally, in order to improve the stability of the sliding block when sliding, a sliding block is installed on the outer wall of the annular column, and the sliding block is slidably fitted inside the second guide groove. A threaded hole is opened on one side of the sliding block, and the threaded hole is threadedly fitted with the threaded rod. The second guide groove is set so that the telescopic part slides inside the second guide groove under the action of the L-shaped column, and the sliding position of the telescopic part is guided by the second guide groove, which reduces the problem of tilting of the telescopic part when sliding and improves the stability of the telescopic part when sliding. The sliding block is set so that the sliding block drives the annular column to slide around the spray pipe under the action of the threaded rod, and drives the brush to clean the dust accumulated on the outer wall of the spray pipe through the annular column, which reduces the problem of clogging of the outer wall of the spray pipe and improves the efficiency of the spray pipe in controlling air pollution.

[0014] Optionally, in order to clean the outer wall of the spray pipe, a plurality of brushes are evenly distributed on the inner wall of the annular column, and one end of the brush cooperates with the outer wall of the spray pipe.

[0015] Optionally, in order to install the adjustment tube on the upper side of the base, a base is installed at the bottom of the box, a plurality of positioning holes are evenly distributed on the outer side wall of the base, and the adjustment tube is installed on the upper side of the base.

[0016] Optionally, in order to improve the stability of the telescopic part when sliding, a plurality of grooves are evenly distributed on the upper end of the adjusting cylinder, the spray pipe is located inside the groove, and a plurality of second guide grooves are evenly distributed on the outer wall of the box body, and the telescopic part slides and fits inside the second guide groove.

[0017] Optionally, in order to place the water inlet pipe, the outer side wall of the box body is evenly connected and communicated with multiple water inlet pipes, the outer side wall of the regulating cylinder is evenly opened with multiple placement holes, and the water inlet pipe is located inside the placement holes.

[0018] After adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art. Of course, any product implementing the present invention does not necessarily need to achieve all the advantages described below at the same time:

[0019] 1. The annular column is set so that the annular column can move up and down reciprocatingly under the action of the L-shaped column, and the dust accumulated on the outer wall of the spray tube is cleaned by the moving annular column, which reduces the problem of dust accumulation on the outer wall of the spray tube, reduces the problem of blockage on the outer wall of the spray tube, and improves the efficiency of the spray tube in controlling air pollution;

[0020] 2. A rotating plate is provided so that the rotating plate drives the T-shaped block to slide inside the T-shaped slot under the action of the rotating disk, and guides the sliding direction of the T-shaped block through the T-shaped slot, thereby reducing the problem of tilting of the T-shaped block during sliding and improving the stability of the T-shaped block during sliding.

[0021] The specific implementation modes of the present invention are further described in detail below in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The drawings described below are only some embodiments. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0023] In the figure:

[0024] Figure 1 It is a schematic diagram of the three-dimensional structure of an embodiment of the present invention;

[0025] Figure 2 It is a bottom view structural schematic diagram of an embodiment of the present invention;

[0026] Figure 3 This is a schematic diagram of the box structure of an embodiment of the present invention;

[0027] Figure 4 This is a schematic diagram of the box cover structure according to an embodiment of the present invention;

[0028] Figure 5 A schematic diagram of the structure of a rotating plate according to an embodiment of the present invention;

[0029] Figure 6 It is a schematic cross-sectional structure diagram of an embodiment of the present invention.

[0030] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0031] Base 1, positioning hole 101, box body 102, box cover 103, water inlet 104, placement groove 105, rotating shaft 106, rotating disk 107, second guide groove 108, adjusting cylinder 109, groove 110, T-shaped groove 111, first fixing rod 112, rotating plate 113, T-shaped block 114, fixing block 115, L-shaped column 116, first guide groove 117, threaded rod 118, sliding block 119, threaded hole 120, annular column 121, second fixing rod 122, first through hole 123, second through hole 124, water inlet pipe 125, placement hole 126, telescopic member 2, spray pipe 201.

[0032] It should be noted that these drawings and textual descriptions are not intended to limit the conceptual scope of the present invention in any way, but are intended to illustrate the concept of the present invention for those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0033] The present invention will now be described in further detail with reference to the accompanying drawings.

[0034] See also Figure 1-6As shown, in this embodiment, an air pollution control device is provided, including a box body 102, a rotating disk 107 is rotatably matched on the upper side of the box body 102, a T-shaped block 114 is slidably matched on the upper side of the box body 102, a rotating plate 113 is rotatably matched between the T-shaped block 114 and the rotating disk 107, an L-shaped column 116 is installed on one side of the T-shaped block 114, and a ring column 121 is slidably matched on one side of the L-shaped column 116;

[0035] A plurality of telescopic parts 2 are slidably fitted on the outer wall of the box body 102 , a spray tube 201 is installed on the upper side of the telescopic part 2 , the outer wall of the spray tube 201 cooperates with the inner wall of the annular column 121 , and the upper side of the telescopic part 2 is installed on the lower end of the L-shaped column 116 .

[0036] Working principle:

[0037] First, the rotating disk 107 is rotated, and the rotating disk 107 drives the L-shaped column 116 through the T-shaped block 114, and then the annular column 121 is slid. The annular column 121 slides around the spray tube 201 and cleans the outer wall of the spray tube 201 through the inner wall of the annular column 121, thereby reducing the problem of dust accumulation on the outer wall of the spray tube 201.

[0038] The annular column 121 is arranged so that the annular column 121 can move up and down reciprocatingly under the action of the L-shaped column 116, and the dust accumulated on the outer wall of the spray tube 201 is cleaned by the moving annular column 121, thereby reducing the problem of dust accumulation on the outer wall of the spray tube 201, reducing the problem of blockage of the outer wall of the spray tube 201, and improving the efficiency of the spray tube 201 in controlling air pollution.

[0039] In order to make the sliding process of the T-shaped block 114 on the side of the box cover 103 more stable, the following structure is used for improvement: Figure 1-6As shown, a box cover 103 is installed at the upper opening of the box body 102 of this embodiment, which is convenient for installing the box cover 103 at the upper opening of the box body 102. A water inlet 104, a placement groove 105, and a plurality of T-shaped grooves 111 are provided on the upper side of the box cover 103. A first motor is installed inside the placement groove 105. A rotating shaft 106 is installed at the output end of the first motor, which is convenient for installing the rotating shaft 106 on the output end of the first motor. A rotating disk 107 is installed at one end of the rotating shaft 106, which is convenient for installing the rotating disk 107 on one end of the rotating shaft 106, and through the rotating shaft 10 6 drives the rotating disk 107 to rotate inside the placement groove 105, thereby improving the stability of the rotating disk 107 during rotation. The rotating disk 107 is rotatably fitted inside the placement groove 105. A plurality of first fixing rods 112 are installed on the upper side of the rotating disk 107. A first through hole 123 is opened at the first end of the rotating plate 113. The first fixing rod 112 is located inside the first through hole 123, which facilitates the first end of the rotating plate 113 to rotate on the first fixing rod 112 through the first through hole 123, thereby improving the stability of the rotating plate 113 during rotation. The T-shaped block 114 is slidably fitted inside the T-shaped groove 111. The second fixing rod 122 is installed on the upper side of the T-shaped block 114, which facilitates the T-shaped block 114 to slide inside the T-shaped groove 111, improves the stability of the T-shaped block 114 when sliding, and reduces the problem of the T-shaped block 114 tilting when sliding. The second fixing rod 122 is installed on the upper side of the T-shaped block 114, which facilitates the second fixing rod 122 to be installed on the upper side of the T-shaped block 114. The second end of the rotating plate 113 is provided with a second through hole 124, and the second fixing rod 122 is located inside the second through hole 124, which facilitates the second end of the rotating plate 113 to rotate on the second fixing rod 122 through the second through hole 124, thereby improving the stability of the rotating plate 113 when rotating. In order to ensure the stability of the vehicle, a fixing block 115 is installed on the upper side of the T-shaped block 114, which is convenient for installing the fixing block 115 on the upper side of the T-shaped block 114. One end of the L-shaped column 116 is installed on one side of the fixing block 115, which is convenient for installing one end of the L-shaped column 116 on one side of the fixing block 115. A first guide groove 117 is opened on one side of the L-shaped column 116. A second motor is installed inside the first guide groove 117. A threaded rod 118 is installed on the output end of the second motor, which is convenient for installing the threaded rod 118 on the output end of the second motor, and the threaded rod 118 is driven to rotate through the output end of the second motor.

[0040] When the present embodiment is in use, the first motor is first rotated, and the output end of the first motor drives the rotating disk 107 to rotate through the rotating shaft 106, and the rotating disk 107 drives the first fixed rod 112 to move, and the first fixed rod 112 drives the rotating plate 113 to move through the first through hole 123, and the rotating plate 113 drives the second fixed rod 122 to move through the second through hole 124, and the second fixed rod 122 drives the T-shaped block 114 to slide inside the T-shaped groove 111, and the T-shaped block 114 drives the L-shaped column 116 to slide through the fixed block 115, and the L-shaped column 116 drives the spray tube 201 to slide through the telescopic member 2, and adjusts the position of the spray tube 201, and the telescopic member 2 slides inside the box body 102 through the second guide groove 108, thereby completing the adjustment of the position of the spray tube 201. Among them, the T-shaped block 114 and the T-shaped slot 111 can be selected to have a T-shaped cross-section, and the sliding direction of the T-shaped block 114 is guided by the T-shaped slot 111, thereby reducing the problem of the T-shaped block 114 sliding out of the T-shaped slot 111 when sliding, making the sliding process of the T-shaped block 114 more convenient.

[0041] The rotating plate 113 is provided so that the rotating plate 113 drives the T-shaped block 114 to slide inside the T-shaped slot 111 under the action of the rotating disk 107, and guides the sliding direction of the T-shaped block 114 through the T-shaped slot 111, thereby reducing the problem of tilting of the T-shaped block 114 when sliding and improving the stability of the T-shaped block 114 when sliding.

[0042] The second guide groove 108 is set to enable the telescopic member 2 to slide inside the second guide groove 108 under the action of the L-shaped column 116, and the second guide groove 108 is used to guide the sliding placement of the telescopic member 2, thereby reducing the problem of tilting of the telescopic member 2 during sliding and improving the stability of the telescopic member 2 during sliding.

[0043] In order to make the sliding process of the annular column 121 around the spray pipe 201 more stable, the following structures are used to improve it. Figure 1-6As shown, the outer wall of the annular column 121 of this embodiment is equipped with a sliding block 119, and the sliding block 119 is slidably matched inside the second guide groove 117. A threaded hole 120 is provided on one side of the sliding block 119, and the threaded hole 120 is threadedly matched with the threaded rod 118. A plurality of brushes are evenly distributed on the inner wall of the annular column 121, which facilitates the installation of the brush on the inner wall of the annular column 121. One end of the brush is matched with the outer wall of the spray tube 201, and the impurities accumulated on the spray tube 201 are cleaned through one end of the brush, thereby reducing the problem of impurities accumulating on the outer wall of the spray tube 201 and improving the water spraying efficiency of the spray tube 201. A base 1 is provided at the bottom of the box body 102, and a plurality of positioning holes are evenly distributed on the outer wall of the base 1 101, an adjusting cylinder 109 is installed on the upper side of the base 1, and a plurality of grooves 110 are evenly distributed on the upper end of the adjusting cylinder 109, and the spray pipe 201 is located inside the groove 110, and a plurality of second guide grooves 108 are evenly distributed on the outer wall of the box body 102, and the telescopic member 2 is slidably fitted inside the second guide groove 108, and a plurality of water inlet pipes 125 are evenly connected and communicated with the outer wall of the box body 102, and a plurality of placement holes 126 are evenly distributed on the outer wall of the adjusting cylinder 109, and the water inlet pipe 125 is located inside the placement hole 126, and a water pump is installed inside the box body 102, and a hose is installed between the water pump and the spray pipe 201, so that the hose can be installed between the water pump and the spray pipe 201, and water is transported to the inside of the hose through the water pump.

[0044] When the present embodiment is in use, the threaded rod 118 is first rotated, and the threaded rod 118 drives the sliding block 119 to slide inside the first guide groove 117 through the threaded hole 120. The sliding block 119 drives the annular column 121 to slide around the spray tube 201. The inner wall of the annular column 121 cleans the dust accumulated on the outer wall of the spray tube 201 through a brush, thereby reducing the problem of cleaning the dust on the outer wall of the spray tube 201.

[0045] The sliding block 119 is arranged so that the sliding block 119 drives the annular column 121 to slide around the spray tube 201 under the action of the threaded rod 118, and drives the brush through the annular column 121 to clean the dust accumulated on the outer wall of the spray tube 201, thereby reducing the problem of blockage of the outer wall of the spray tube 201 and improving the efficiency of the spray tube 201 in controlling air pollution.

[0046] In order to drive the multiple rotating plates 113 to rotate synchronously, the following two implementation modes are proposed:

[0047] Embodiment 1: In this embodiment, a placement groove 105 is provided on the upper side of the box cover 103, a first motor is installed inside the placement groove 105, a rotating shaft 106 is installed at the output end of the first motor, a rotating disk 107 is installed at one end of the rotating shaft 106, a plurality of first fixing rods 112 are evenly installed on one side of the rotating disk 107, a first through hole 123 is provided at one end of the rotating plate 113, and the first fixing rod 112 is located inside the first through hole 123, wherein the plurality of rotating plates 113 are synchronously rotated under the drive of the rotating disk 107;

[0048] Embodiment 2: The difference between this embodiment and the above-mentioned embodiment 1 is that, in order to synchronize the rotation of multiple rotating plates 113 in this embodiment, multiple electric push rods can be provided on one side of the box cover 103, and one end of the rotating plate 113 is installed on the output end of the electric push rod, wherein the operating states of the multiple electric push rods are synchronized.

[0049] The present invention is not limited to the above-mentioned embodiments. Anyone should be aware that any structural changes made under the enlightenment of the present invention, and any technical solutions that are the same or similar to the present invention, fall within the protection scope of the present invention. The technology, shape, and structural parts not described in detail in the present invention are all well-known technologies.

Claims

1. An air pollution control device, characterized in that: include: A box body (102), wherein a rotating disk (107) is rotatably engaged on the upper side of the box body (102), a T-shaped block (114) is slidably engaged on the upper side of the box body (102), a rotating plate (113) is rotatably engaged between the T-shaped block (114) and the rotating disk (107), an L-shaped column (116) is installed on one side of the T-shaped block (114), and an annular column (121) is slidably engaged on one side of the L-shaped column (116); A plurality of telescopic parts (2) are slidably fitted on the outer wall of the box body (102), a spray tube (201) is installed on the upper side of the telescopic part (2), the outer wall of the spray tube (201) is fitted with the inner wall of the annular column (121), and the upper side of the telescopic part (2) is installed on the lower end of the L-shaped column (116).

2. The air pollution control equipment according to claim 1, characterized in that: A box cover (103) is installed at the upper opening of the box body (102); a water inlet (104), a placement slot (105), and a plurality of T-shaped slots (111) are provided on the upper side of the box cover (103); a first motor is installed inside the placement slot (105); a rotating shaft (106) is installed at the output end of the first motor; the rotating disk (107) is installed on one end of the rotating shaft (106); and the rotating disk (107) is rotatably engaged inside the placement slot (105).

3. The air pollution control equipment according to claim 1, characterized in that: A plurality of first fixing rods (112) are installed on the upper side of the rotating disk (107), a first through hole (123) is opened at the first end of the rotating plate (113), and the first fixing rod (112) is located inside the first through hole (123).

4. The air pollution control equipment according to claim 2, characterized in that: The T-shaped block (114) is slidably fitted inside the T-shaped slot (111), a second fixing rod (122) is installed on the upper side of the T-shaped block (114), a second through hole (124) is opened at the second end of the rotating plate (113), and the second fixing rod (122) is located inside the second through hole (124).

5. The air pollution control equipment according to claim 1, characterized in that: A fixing block (115) is installed on the upper side of the T-shaped block (114), one end of the L-shaped column (116) is installed on one side of the fixing block (115), a first guide groove (117) is opened on one side of the L-shaped column (116), a second motor is installed inside the first guide groove (117), and a threaded rod (118) is installed at the output end of the second motor.

6. The air pollution control equipment according to claim 5, characterized in that: A sliding block (119) is installed on the outer wall of the annular column (121), and the sliding block (119) is slidably fitted inside the second guide groove (117). A threaded hole (120) is opened on one side of the sliding block (119), and the threaded hole (120) is threadedly fitted with the threaded rod (118).

7. The air pollution control equipment according to claim 1, characterized in that: The inner wall of the annular column (121) is evenly provided with a plurality of brushes, one end of each brush being matched with the outer wall of the spray tube (201).

8. The air pollution control equipment according to claim 1, characterized in that: A base (1) is installed at the bottom of the box body (102), a plurality of positioning holes (101) are evenly distributed on the outer wall of the base (1), and an adjustment cylinder (109) is installed on the upper side of the base (1).

9. The air pollution control equipment according to claim 8, characterized in that: The upper end of the regulating cylinder (109) is evenly provided with a plurality of grooves (110), the spray pipe (201) is located inside the groove (110), the outer wall of the box body (102) is evenly provided with a plurality of second guide grooves (108), and the telescopic member (2) is slidably fitted inside the second guide grooves (108).

10. The air pollution control equipment according to claim 8, characterized in that: The outer wall of the box body (102) is evenly connected and communicated with a plurality of water inlet pipes (125), and the outer wall of the regulating cylinder (109) is evenly opened with a plurality of placement holes (126), and the water inlet pipes (125) are located inside the placement holes (126).

Citation Information

Patent Citations

  • An air pollution control device

    CN116059764B

  • Atmospheric pollution treatment equipment

    CN116059764A

  • Atmospheric pollution treatment equipment

    CN118001858A

  • Building engineering construction dust falling device

    CN217595286U

  • Dust suppression spraying device

    CN219809039U