Water curtain dust removal device

Abstract

The utility model provides a water curtain dust removal device which comprises a venturi water inlet pipe, the venturi water inlet pipe comprises a water inlet pipe water inlet, a water inlet pipe nozzle located at the water inlet pipe water inlet, an injection port located below the water inlet pipe nozzle and a water inlet pipe water outlet arranged opposite to the water inlet pipe water inlet, a water inlet of the water inlet pipe is connected with a pressurized water pipe through a pipeline, the injection opening is fixedly connected with the conical dust suction hood, a water outlet of the water inlet pipe is fixedly connected with the first-stage water curtain dust removal barrel through a middle pipeline, and the second-stage water curtain dust removal barrel is fixedly arranged above the first-stage water curtain dust removal barrel. According to the water curtain dust removal device disclosed by the utility model, fine dust particles can be effectively removed, and the dust removal efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of dust removal equipment, in particular to a water curtain dust removal device. Background Technique

[0002] During the process of powder dissolution and preparation, such as dissolving powdered activated carbon in the water treatment field for the filtration process, a large amount of dust is often generated. These dusts will not only pollute the working environment, affect the health of operators, but also may cause safety accidents such as explosions. Currently, common dust removal technologies include spray dust removal, cyclone dust removal, and bag dust removal, etc. The dust removal effects of these dust removal technologies are not good, and they cannot effectively remove fine dust particles. Summary of the Invention

[0003] The problem to be solved by the utility model is to provide a water curtain dust removal device that can effectively remove fine dust particles and improve the dust removal efficiency.

[0004] To solve the above technical problems, the technical solution adopted by the utility model is: a water curtain dust removal device, including a Venturi inlet pipe, the Venturi inlet pipe includes an inlet water inlet of the inlet pipe, an inlet pipe nozzle located at the inlet water inlet of the inlet pipe, an injection port located below the inlet pipe nozzle, and an outlet water outlet of the inlet pipe opposite to the inlet water inlet of the inlet pipe. The inlet water inlet of the inlet pipe is connected to a pressurized water pipe through a pipeline. The injection port is fixedly connected to a conical dust suction hood. The outlet water outlet of the inlet pipe is fixedly connected to a first-stage water curtain dust removal barrel through an intermediate pipeline. A second-stage water curtain dust removal barrel is fixedly arranged above the first-stage water curtain dust removal barrel. The upper part of the second-stage water curtain dust removal barrel is connected to an atmospheric pressure water pipe through a pipe clamp.

[0005] Further, the first-stage water curtain dust removal barrel includes a hollow first barrel body. A bent pipe is penetrated through the side wall of the first barrel body. The water inlet of the bent pipe is fixedly connected to the water outlet of the intermediate pipeline. A first connecting rod is fixedly arranged on the side wall at the water outlet of the bent pipe. A first water distribution umbrella cap is fixedly arranged on the first connecting rod. The first water distribution umbrella cap is in a conical structure, and the vertex of the first water distribution umbrella cap is located directly below the water outlet of the bent pipe.

[0006] Further, the second-stage water curtain dust removal barrel includes a hollow second barrel body. The first barrel body and the second barrel body are communicated. A water delivery channel is arranged around the inner wall of the second barrel body. The water delivery channel is communicated with the atmospheric pressure water pipe through a pipe clamp. Water delivery holes are uniformly arranged on the water delivery channel. A first water collecting tray is arranged below the water delivery channel. The first water collecting tray is connected to a second water distribution umbrella cap through a second connecting rod below. A second water collecting tray is arranged below the second water distribution umbrella cap. Both the first water collecting tray and the second water collecting tray are welded and fixed on the side wall of the second barrel body.

[0007] Further, both the first water collecting tray and the second water collecting tray include an annular side wall and a water collecting tray water outlet surrounded by the annular side wall, and the annular side wall is inclined.

[0008] Further, the second water dividing umbrella cap has a conical structure, and the vertex of the second water dividing umbrella cap is located directly below the water collecting tray water outlet.

[0009] Further, hydrophobic coatings are provided on both the first water dividing umbrella cap and the second water dividing umbrella cap.

[0010] Further, flange plates for connecting to the solution preparation tank are provided below both the conical dust suction hood and the first barrel body.

[0011] Compared with the prior art, the advantages and beneficial effects of the present utility model are as follows:

[0012] Firstly, the water curtain dust removal device of the present utility model is flange-connected to the conical dust suction hood and the first barrel body with the solution preparation tank through flange plates. When adding powder materials into the solution preparation tank, a large amount of dust will be generated. Therefore, high-pressure water is input into the Venturi inlet pipe through a pressurized water pipe. After passing through the inlet pipe nozzle, a high-speed jet water column will be formed, generating a suction force, so that the dust in the solution preparation tank is sucked into the Venturi inlet pipe through the conical dust suction hood and enters the primary water curtain dust removal barrel along with the water flow, and then returns to the solution preparation tank. And to prevent fine dust from being discharged above the primary water curtain dust removal barrel, a secondary water curtain dust removal barrel is provided. Water is introduced through an atmospheric pressure water pipe to form a water curtain inside, and the dust is brought back to the solution preparation tank. The present utility model adopts the principle of the Venturi tube, can remove a large amount of dust, and combines the primary water curtain dust removal barrel and the secondary water curtain dust removal barrel to form a multi-stage water curtain, enabling the water and dust to fully contact, effectively removing fine dust particles, reducing dust removal dead corners, and improving the dust removal efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is the overall structural schematic diagram of a water curtain dust removal device of the present utility model.

[0014] Figure 2 is the internal structural schematic diagram of the connection between the primary water curtain dust removal barrel and the secondary water curtain dust removal barrel of a water curtain dust removal device of the present utility model.

[0015] Figure 3 is the structural schematic diagram of the Venturi inlet pipe of a water curtain dust removal device of the present utility model.

[0016] Figure 4 is the structural schematic diagram of the first water dividing umbrella cap and / or the second water dividing umbrella cap of a water curtain dust removal device of the present utility model.

[0017] Figure 5It is a schematic structural diagram of the first water collecting tray and / or the second water collecting tray of a water curtain dust removal device of the present utility model.

[0018] In the figure: 1 - Venturi inlet pipe; 2 - Pressurized water pipe; 3 - Conical dust suction hood; 4 - Intermediate pipeline; 5 - Primary water curtain dust removal barrel; 6 - Secondary water curtain dust removal barrel; 7 - Pipe clamp; 8 - Normal pressure water pipe; 9 - Inlet of the inlet pipe; 10 - Nozzle of the inlet pipe; 11 - Ejector port; 12 - Outlet of the inlet pipe; 13 - First barrel body; 14 - Elbow pipe; 15 - First connecting rod; 16 - First water distribution umbrella cap; 17 - Second barrel body; 18 - Water delivery pipeline; 19 - Water delivery hole; 20 - First water collecting tray; 21 - Second connecting rod; 22 - Second water distribution umbrella cap; 23 - Second water collecting tray; 24 - Circular ring-shaped side wall; 25 - Outlet of the water collecting tray; 26 - Hydrophobic coating; 27 - Flange. Detailed implementation manners

[0019] The following will make a detailed description of the detailed implementation manners of the present utility model with reference to the accompanying drawings.

[0020] As Figures 1 - 5 shown, a water curtain dust removal device includes a Venturi inlet pipe 1. The Venturi inlet pipe 1 includes an inlet of the inlet pipe 9, a nozzle 10 of the inlet pipe located at the inlet of the inlet pipe 9, an ejector port 11 located below the nozzle 10 of the inlet pipe, and an outlet of the inlet pipe 12 disposed opposite to the inlet of the inlet pipe 9. The inlet of the inlet pipe 9 is connected to the pressurized water pipe 2 through a pipeline, the ejector port 11 is fixedly connected to the conical dust suction hood 3, the outlet of the inlet pipe 12 is fixedly connected to the primary water curtain dust removal barrel 5 through the intermediate pipeline 4, a secondary water curtain dust removal barrel 6 is fixedly arranged above the primary water curtain dust removal barrel 5, and the secondary water curtain dust removal barrel 6 is connected to the normal pressure water pipe 8 through a pipe clamp 7 above.

[0021] Specifically, the working principle of the Venturi inlet pipe 1 is that water with a certain pressure forms a high-speed jet water column after passing through the inlet pipe nozzle 10 inside the Venturi inlet pipe, generating a certain amount of suction force to form a negative pressure in the cavity, sucking the dust to be transported at the injection port 11, and discharging it together with the water flow at the outlet 12 of the inlet pipe. Therefore, in the present utility model, the lower ends of the conical dust suction hood 3 and the first-stage water curtain dust removal barrel 5 are connected to a solution preparation tank (not shown). When adding powder materials into the solution preparation tank, a large amount of dust will be generated. Therefore, after the high-pressure water is input into the Venturi inlet pipe 1 through the pressurized water pipe 2, according to the negative pressure effect, the dust in the solution preparation tank is sucked into the Venturi inlet pipe 1 through the conical dust suction hood 3 and enters the first-stage water curtain dust removal barrel 5 along with the water flow, and then returns to the solution preparation tank. And to prevent fine dust from being discharged above the first-stage water curtain dust removal barrel 5, a second-stage water curtain dust removal barrel 6 is provided, which uses the normal pressure water pipe to introduce water and forms a water curtain inside to bring the dust back to the solution preparation tank. The present utility model adopts the principle of the Venturi tube, can remove a large amount of dust, and combines the first-stage water curtain dust removal barrel 5 and the second-stage water curtain dust removal barrel 6 to form a multi-stage water curtain, enabling the water and dust to fully contact, effectively removing fine dust particles, reducing the dust removal dead angle, and improving the dust removal efficiency.

[0022] Further, the first-stage water curtain dust removal barrel 5 includes a hollow first barrel body 13. A bent pipe 14 is penetrated and arranged on the side wall of the first barrel body 13. The water inlet of the bent pipe 14 is fixedly connected to the water outlet of the intermediate pipeline 4. A first connecting rod 15 is fixedly arranged on the side wall at the water outlet of the bent pipe 14. A first water distribution umbrella cap 16 is fixedly arranged on the first connecting rod 15. The first water distribution umbrella cap 16 is in a conical structure, and the vertex of the first water distribution umbrella cap 16 is located directly below the water outlet of the bent pipe 14.

[0023] Specifically, the high-pressure water drives the dust to enter the bent pipe 14 together after passing through the intermediate pipeline 4. At the water outlet of the bent pipe 14, a first-stage annular water curtain is formed by using the structure of the first water distribution umbrella cap 16 and falls back into the solvent preparation tank. At the same time, the first-stage annular water curtain can effectively prevent a large amount of dust from floating out at the first barrel body 13.

[0024] Further, the second-stage water curtain dust removal barrel 6 includes a hollow second barrel body 17. The first barrel body 13 and the second barrel body 17 are connected and arranged in communication. A water delivery channel 18 is arranged around the inner wall of the second barrel body 17. The water delivery channel 18 is connected to the normal pressure water pipe 8 through a pipe clamp 7. Water delivery holes 19 are uniformly arranged on the water delivery channel 18. A first water collecting tray 20 is arranged below the water delivery channel 18. The first water collecting tray 20 is connected to a second water distribution umbrella cap 22 through a second connecting rod 21 below. A second water collecting tray 23 is arranged below the second water distribution umbrella cap 22. The first water collecting tray 20 and the second water collecting tray 23 are both welded and fixed on the side wall of the second barrel body 17.

[0025] Specifically, the first barrel body 13 and the second barrel body 17 are fixedly connected by a sanitary clamp, and the connection structure is simple and reliable. At the same time, in order to prevent fine dust from being discharged after passing through the first barrel body 13, the second barrel body 17 is fixed above the first barrel body 13. By transporting normal pressure water through the normal pressure water pipe 8 to the water supply pipe 18, the normal pressure water flows into the first water collecting tray 20 through the water supply hole 19, and is concentrated by the first water collecting tray 20 to flow into the second water diversion umbrella cap 22 to form a secondary annular water curtain, which effectively prevents the discharge of fine dust. At the same time, the water of the secondary annular water curtain is collected again by the second water collecting tray 23, and then enters the solution preparation tank after forming an annular water curtain through the first water diversion umbrella cap 16.

[0026] Furthermore, the first water collecting tray 20 and the second water collecting tray 23 both include an annular side wall 24 and a water collecting tray outlet 25 surrounded by the annular side wall 24. The annular side wall 24 is inclined to facilitate the collection of water and its outflow at the water collecting tray outlet 25. The collected and concentrated water is more likely to form an annular water curtain when passing through the water diversion umbrella cap, thereby improving the dust removal effect.

[0027] Furthermore, the second water-dividing umbrella cap 22 has a conical structure, and the apex of the second water-dividing umbrella cap 22 is located directly below the water outlet 25 of the water collecting tray. The water discharged from the water outlet 25 of the water collecting tray flows downward at the apex of the second water-dividing umbrella cap 22, thereby increasing the downward flow velocity of the water and better forming an annular water curtain.

[0028] Furthermore, the first water-dividing cap 16 and the second water-dividing cap 22 are both provided with a hydrophobic coating 26 , which makes it difficult for water droplets to remain on the water-dividing caps, so that the water can flow downward better to form a water curtain and flow back to the solution preparation tank.

[0029] Furthermore, flanges 27 for connecting to the solution preparation tank are provided below the conical dust hood 3 and the first barrel 13 , and are flange-connected to the solution preparation tank via the flanges 27 .

[0030] The working process of the utility model is as follows: The lower part of the conical dust suction hood and the first barrel body is connected to the solution preparation tank through a flange. The water inlet pipes of the pressurized water pipe and the normal pressure water pipe are both used for dissolving powder materials, and the water consumption is controlled by installing a flow meter and a ball valve. When adding powder materials to the solution preparation tank, a large amount of dust is generated. Therefore, the dissolving water is introduced into both the pressurized water pipe and the normal pressure water pipe at the same time. The water with a certain pressure in the pressurized water pipe passes through the Venturi water inlet pipe and then sucks the dust floating in the solution preparation tank through the conical dust suction hood. After mixing with the water, it flows out through the intermediate pipeline and the elbow, forms a primary annular water curtain through the first water distribution umbrella cap, and then flows back into the solution preparation tank. At the same time, the normal pressure water enters the water delivery pipeline through the normal pressure water pipe, flows into the first water collection tray through the water delivery holes, is collected by the first water collection tray and then flows onto the second water distribution umbrella cap to form a secondary annular water curtain, effectively preventing the discharge of fine dust. At the same time, the water of the secondary annular water curtain is collected again by the second water collection tray, forms an annular water curtain through the first water distribution umbrella cap and then enters the solution preparation tank.

[0031] During the dissolution and preparation process of the powder material, the dissolving water forms a circulation loop with the solution preparation tank through the water curtain dust removal device of the utility model, achieving a good dust removal effect during the dissolution process, effectively reducing the waste of powder materials during the dissolution and preparation process, and no additional water is required for the dust removal process, which is energy-saving and environmentally friendly.

[0032] In addition, it should be noted that the pipeline connections in the utility model all adopt the connection method of sanitary clamps. The connection structure is simple and reliable, and it is convenient for maintenance.

[0033] The above has described a specific embodiment of the utility model in detail, but the described content is only the preferred embodiment of the utility model and cannot be considered as limiting the implementation scope of the utility model. All equivalent changes and improvements made according to the application scope of the utility model should still fall within the patent coverage scope of the utility model.

Claims

1. A water curtain dust removal device, characterized in that: It includes a Venturi inlet pipe, and the Venturi inlet pipe includes an inlet of the inlet pipe, an inlet nozzle of the inlet pipe located at the inlet of the inlet pipe, an injection port located below the inlet nozzle of the inlet pipe, and an outlet of the inlet pipe oppositely arranged with the inlet of the inlet pipe. The inlet of the inlet pipe is connected to a pressurized water pipe through a pipeline. The injection port is fixedly connected to a conical dust suction hood. The outlet of the inlet pipe is fixedly connected to a primary water curtain dust removal barrel through an intermediate pipeline. A secondary water curtain dust removal barrel is fixedly arranged above the primary water curtain dust removal barrel. The secondary water curtain dust removal barrel is connected to an atmospheric pressure water pipe through a pipe clamp above.

2. The water curtain dust removal device according to claim 1, wherein: The primary water curtain dust removal barrel includes a hollow first barrel body. A bent pipe is penetratively arranged on the side wall of the first barrel body. The water inlet of the bent pipe is fixedly connected to the water outlet of the intermediate pipeline. A first connecting rod is fixedly arranged on the side wall at the water outlet of the bent pipe. A first water distribution umbrella cap is fixedly arranged on the first connecting rod. The first water distribution umbrella cap has a conical structure. The vertex of the first water distribution umbrella cap is located directly below the water outlet of the bent pipe.

3. The water curtain dust removal device according to claim 2, characterized in that: The secondary water curtain dust removal barrel includes a hollow second barrel body. The first barrel body and the second barrel body are communicated. A water delivery channel is arranged around the inner wall of the second barrel body. The water delivery channel is communicated with the atmospheric pressure water pipe through a pipe clamp. Water delivery holes are uniformly arranged on the water delivery channel. A first water collecting tray is arranged below the water delivery channel. The first water collecting tray is connected to a second water distribution umbrella cap through a second connecting rod below. A second water collecting tray is arranged below the second water distribution umbrella cap. Both the first water collecting tray and the second water collecting tray are welded and fixed on the side wall of the second barrel body.

4. The water curtain dust removal device according to claim 3, characterized in that: Both the first water collecting tray and the second water collecting tray include an annular side wall and a water collecting tray water outlet surrounded by the annular side wall. The annular side wall is inclined.

5. The water curtain dust removal device according to claim 4, characterized in that: The second water distribution umbrella cap has a conical structure. The vertex of the second water distribution umbrella cap is located directly below the water collecting tray water outlet.

6. The water curtain dust removal device according to claim 5, characterized in that: Both the first water distribution umbrella cap and the second water distribution umbrella cap are provided with a hydrophobic coating.

7. The water curtain dust removal device according to claim 2, characterized in that: Flange plates for connecting to a solution preparation tank are arranged below both the conical dust suction hood and the first barrel body.

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