Water mist dust remover

Abstract

The invention discloses a water mist dust remover, which belongs to the technical field of dust removers and comprises a tank body, a water feeder and two dust removal channels. The dust removal channel is arranged between the air inlet and the air outlet pipe, a continuously-bent ascending channel and a continuously-bent descending channel are formed in the cavity, water mist flowing from top to bottom is formed in the two channels, and the diameter of water drops in the ascending channel is larger than that of water drops in the descending channel. An upper partition plate and a lower partition plate are distributed in the tank body, and gaps are reserved between the partition plates to form ascending and descending channels. A liquid supply disc is fixed at the top of the tank body, and a spraying nozzle and an atomizing nozzle are arranged below the liquid supply disc and correspond to the ascending channel and the descending channel respectively, so that graded dust removal of capturing coarse dust by large-particle-size water mist and capturing fine dust by small-particle-size water mist is realized. A liquid storage cavity and a vertical spraying hole are formed in the spraying nozzle, and it is ensured that water mist is vertically sprayed downwards. The atomizing nozzle generates high-density fine water mist through the refining channel and the stop block structure.

Description

Technical Field

[0001] The invention relates to the technical field of dust removal, and in particular to a water mist dust collector. Background Art

[0002] As an efficient and environmentally friendly dust removal method, water mist dust removal technology can effectively capture dust through the collision, interception and agglomeration of water mist and dust particles, especially fine particles. However, the existing water mist dust collectors have the following problems: the gas-liquid contact time of traditional water mist dust collectors is short, the collision probability of dust and water mist is low, and especially the capture effect of fine particles is not ideal. Some water mist dust collectors adopt multi-layer spraying or complex channel design, which leads to large equipment size, high energy consumption, and easy clogging. Liquid droplets may be entrained in the purified gas, affecting the quality of gas emissions and even causing secondary pollution. In order to solve the above problems, the present invention provides a water mist dust collector. Summary of the invention

[0003] In view of the above-mentioned technical deficiencies, the purpose of the present invention is to provide a water mist dust collector, which significantly improves the dust removal efficiency by optimizing the dust removal channel design, graded spray atomization technology and high-efficiency gas-liquid separation structure.

[0004] In order to solve the above technical problems, the present invention adopts the following technical solution: The present invention provides a water mist dust collector, comprising: A tank body, wherein a chamber is provided inside the tank body, air inlets are provided at both ends of the chamber, an air outlet pipe is provided in the middle of the chamber, and a plurality of nozzles are provided at the top of the chamber; A water supply device, the water supply device being connected to a plurality of nozzles through a pipeline; There are two dust removal channels, which are arranged between the air inlet and the air outlet pipe. The dust removal channels are in a continuously bent shape inside the chamber and can form an ascending channel and a descending channel inside the chamber. Water mist flowing from top to bottom can be formed inside the ascending channel and the descending channel, and the diameter of the water droplets of the water mist inside the ascending channel is larger than the diameter of the water droplets formed inside the descending channel.

[0005] Preferably, the chamber is internally spaced and distributed with an upper partition and a lower partition, the upper partition is fixed to the top of the chamber, and a gap is left between the upper partition and the bottom of the chamber, the lower partition is fixed to the bottom of the chamber, and a gap is left between the lower partition and the top of the chamber, and the two sides of the lower partition are an ascending channel and a descending channel respectively.

[0006] Preferably, a plurality of liquid supply trays are fixed on the top of the tank body, and the liquid supply trays extend into the interior of the chamber. The liquid supply trays are arranged above the lower partition plate, and a spray nozzle and an atomizing nozzle are fixed to the bottom of each of the liquid supply trays. The spray nozzle is arranged above the ascending channel, and the atomizing nozzle is arranged above the descending channel.

[0007] Preferably, a liquid storage chamber is provided inside the spray nozzle, the liquid storage chamber is communicated with a pipeline, and a plurality of spray holes are provided at the spray outlet of the spray nozzle, and the spray holes are arranged vertically.

[0008] Preferably, a thinning channel is provided inside the atomizing nozzle, and a stopper is provided at the end of the thinning channel.

[0009] Preferably, a transverse plate is transversely fixed at the top of the chamber, the bottoms of the spray nozzle and the atomizing nozzle both pass through the transverse plate, and the transverse plate is sealed and fixed to the side wall of the chamber.

[0010] Preferably, a liquid outlet pipe is provided at the bottom of the tank body, and the liquid outlet pipe is connected to multiple positions of the dust removal channel through branch pipes, and a branch pipe is provided on both sides of each lower partition, the lower surface of the chamber is an inclined surface, and the branch pipe is connected to the lowest point of the corresponding inclined surface.

[0011] Preferably, the cross section of the chamber inside the tank body is circular, and the top of the tank body is flat, and the liquid supply tray is installed inside the flat surface.

[0012] Preferably, both ends of the tank body are conical, and the two air inlets are provided at the ends of the cones.

[0013] Preferably, the air outlet pipe is fixed in the middle of the tank body, and the lower end thereof extends through the transverse plate to the bottom of the chamber and leaves a gap with the lower end of the chamber.

[0014] The beneficial effects of the present invention are: At a time when air pollution is becoming increasingly serious, effective treatment of dusty gas has become a key link. Dust-laden gas enters the chamber synchronously from the conical air inlets at both ends of the tank. The unique conical design allows the airflow to diffuse evenly along the chamber wall, effectively reducing turbulent interference and avoiding direct erosion of the partition.

[0015] After entering the chamber, the spray nozzle immediately takes effect. The spray nozzle sprays large-particle water mist downward, exchanging momentum with the coarse dust in the rising airflow. In this process, the coarse dust is impacted by the water mist, and its trajectory is changed, the kinetic energy gradually decreases, and finally settles to the bottom of the chamber. The atomizing nozzle sprays small-particle water mist downward, and these small-particle water mists form a dense collection group in the chamber. Through physical effects such as interception, diffusion (Brownian motion) and agglomeration, fine dust is efficiently captured.

[0016] The airflow alternates between the ascending channel and the descending channel. This design prolongs the gas-liquid contact path and increases the probability of dust and water mist colliding. At the same time, the staggered arrangement of the baffles generates eddies in local areas. These eddies further strengthen the agglomeration process of dust and water droplets, allowing more dust to be captured by water mist, thereby improving the purification effect and reducing the emission of inhalable particulate matter in the atmosphere. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the present invention.

[0018] Figure 2 This is a diagram of the interior of the tank.

[0019] Figure 3 This is the connection diagram of the spray nozzle, atomizing nozzle and cross plate.

[0020] Figure 4 This is a partial view of the interior of the tank.

[0021] Figure 5 This is an internal cross-sectional view of a spray nozzle and an atomizing nozzle.

[0022] Figure 6 This is a schematic diagram of the lower partition in Example 2.

[0023] Figure 7 This is the connection diagram of the cross plate and the liquid supply tray.

[0024] In the figure: 1, tank body, 101, chamber, 2, water supply device, 3, dust removal channel, 31, ascending channel, 32, descending channel, 4, nozzle, 41, spray nozzle, 42, atomizing nozzle, 421, refinement channel, 422, block, 5, liquid supply plate, 6, air outlet pipe, 7, upper partition, 8, lower partition, 9, horizontal plate, 10, liquid outlet pipe. DETAILED DESCRIPTION

[0025] The present invention is described below with specific embodiments, but they are not intended to be limiting of the invention.

[0026] Embodiment 1 like Figure 1-Figure 7 As shown, in this embodiment, a water mist dust collector is provided, including a tank body 1 and a water supplier 2.

[0027] A chamber 101 is provided inside the tank body 1, air inlets are provided at both ends of the chamber 101, an air outlet pipe 6 is provided in the middle of the chamber 101, and a plurality of nozzles 4 are provided on the top of the chamber 101. Dust-containing gas enters synchronously from the air inlets at both ends of the tank body 1, and the top nozzle 4 groups spray atomized water downward, and the purified gas is discharged through the middle air outlet pipe 6.

[0028] The outlet pipe 6 is fixed in the middle of the tank body 1, and the lower end passes through the horizontal plate 9 and extends to the bottom of the chamber 101, leaving a gap with the lower end of the chamber 101, ensuring efficient discharge of the purified gas and preventing droplets from entering the outlet pipe 6. The lower end of the outlet pipe 6 extends to the bottom of the chamber 101 but leaves a gap to prevent droplets from being sucked in; the purified gas rises to the outlet pipe 6 through the gap, and the residual droplets are separated by gravity.

[0029] A liquid outlet pipe 10 is provided at the bottom of the tank body 1, and the liquid outlet pipe 10 is connected to multiple positions of the dust removal channel 3 through branch pipes, and a branch pipe is provided on both sides of each lower partition 8. The lower surface of the chamber 101 is an inclined surface, and the branch pipe is connected to the lowest point of the corresponding inclined surface, which can efficiently collect dust droplets, avoid the sedimentation layer from blocking the channel, and ensure the continuous operation of the equipment.

[0030] The liquid outlet pipe 10 is connected to the lowest point of the slope on both sides of each partition through a branch pipe; dust droplets flow into the branch pipe along the slope and are discharged through the liquid outlet pipe 10 to prevent deposition at the bottom of the chamber 101; the slope design reduces droplet residue and improves drainage efficiency.

[0031] The chamber 101 inside the tank body 1 has a circular cross section, and the top of the tank body 1 is flat. The liquid supply tray 5 is installed inside the plane to optimize the airflow distribution inside the tank body 1, reduce flow resistance, and improve dust removal uniformity. The circular cross-section chamber 101 reduces airflow dead angles and makes the airflow more uniform; the flat top facilitates the installation of the liquid supply tray 5 to ensure that the nozzle 4 sprays vertically downward.

[0032] Both ends of the tank body 1 are conical, and two air inlets are set at the ends of the cones to improve the air flow distribution at the air inlet, reduce the impact of high-speed airflow on the dust removal channel 3, and avoid direct erosion of the partition; the air inlet is located at the end of the cone to guide the airflow to diffuse along the wall of the chamber 101 and reduce turbulent interference.

[0033] The water supply device 2 is connected to a plurality of nozzles 4 through a pipeline. The water supply device 2 draws water from a source, and distributes the water to each nozzle 4 through a pipeline after pressurization, so as to maintain a constant water pressure and ensure a water mist effect.

[0034] There are two dust removal channels 3, which are arranged between the air inlet and the air outlet pipe 6. The dust removal channels 3 are in a continuously bent shape inside the chamber 101, and can form an ascending channel 31 and a descending channel 32 inside the chamber 101. Water mist flowing from top to bottom can be formed inside the ascending channel 31 and the descending channel 32. The diameter of the water droplets in the ascending channel 31 is larger than the diameter of the water droplets formed in the descending channel 32. When the gas enters the continuously bent channel, the large-diameter water mist (80-15 The small-sized water mist (30-80μm) in the descending section captures the fine dust, and the dust-containing water droplets settle to the bottom of the tank body 1 by gravity. The large-sized water droplets in the ascending channel 31 exchange momentum with the high-speed coarse dust, and the small water droplets in the descending channel 32 form a dense capture group to intercept the fine particles moving with the airflow. The Brownian motion of submicron water droplets enhances the contact probability with nano dust, and the local eddy current generated by the bent channel enhances the agglomeration of dust and water droplets. The dust-containing droplets form a sedimentation layer at the bottom of the tank body 1 and are discharged regularly.

[0035] Embodiment 2 like Figure 1-Figure 6 As shown, based on the first embodiment, this embodiment provides a method for forming the dust removal channel 3, which is specifically as follows: The chamber 101 is internally spaced and installed with an upper partition 7 and a lower partition 8. The upper partition 7 is fixed on the top of the chamber 101, and a gap is left between the upper partition 7 and the bottom of the chamber 101. The lower partition 8 is fixed on the bottom of the chamber 101, and a gap is left between the lower partition 8 and the top of the chamber 101. The two sides of the lower partition 8 are respectively an ascending channel 31 and a descending channel 32. A continuously bent dust removal channel 3 is formed by the partition structure to extend the gas-liquid contact path and improve the dust removal efficiency. The airflow flows alternately between the ascending channel 31 and the descending channel 32, increasing the probability of collision between dust and water mist. The staggered arrangement of the partitions forces the airflow to turn, generating local vortices and strengthening the agglomeration of dust and water droplets. The upper partition 7 and the lower partition 8 can be folded plates.

[0036] A plurality of liquid supply trays 5 are fixed on the top of the tank body 1, and the liquid supply trays 5 extend into the chamber 101. The liquid supply trays 5 are arranged above the lower partition 8, and a spray nozzle 4 and an atomizing nozzle 4 are fixed at the bottom of each liquid supply tray 5. The spray nozzle 4 is arranged above the ascending channel 31, and the atomizing nozzle 4 is arranged above the descending channel 32, so as to accurately distribute water mist of different particle sizes to the corresponding channels and optimize the graded capture of coarse dust and fine dust. The spray nozzle 4 (large particle size water mist) is used to capture coarse dust; the atomizing nozzle 4 (small particle size water mist) is used to capture fine dust; the spatial distribution of different nozzles 4 matches the channel function to realize graded dust removal.

[0037] Embodiment 3 like Figure 1-Figure 7As shown, based on the first and second embodiments, this embodiment provides a nozzle 4 structure, which is as follows: A liquid storage chamber is provided inside the spray nozzle 41, and the liquid storage chamber is connected to the pipeline. A plurality of spray holes are provided at the nozzle of the spray nozzle 41, and the spray holes are arranged vertically. The vertical spray hole design ensures that large-particle water mist is sprayed vertically downward to enhance the momentum exchange with the coarse dust in the rising airflow. The liquid storage chamber is connected to the water supplier 2 through a pipeline to maintain a stable water pressure. The vertical spray holes allow water to be sprayed vertically with a larger particle size (80-150μm), directly colliding with the coarse dust moving at high speed in the rising channel 31, and using momentum exchange to make it settle.

[0038] A refinement channel 421 is provided inside the atomizing nozzle 42, and a stopper 422 is provided at the end of the refinement channel 421. When the liquid discharged from the refinement channel 421 flows to the stopper 422, water atomization can be formed. The refinement channel 421 and the stopper 422 structure produce high-density fine water mist (30-80μm), which improves the capture efficiency of fine dust. The liquid is accelerated through the refinement channel 421 and impacts the stopper 422 to form atomization; the small-particle water mist contacts the fine dust in the descending channel 32, and captures nano-scale particles through interception, diffusion (Brownian motion) and agglomeration.

[0039] A horizontal plate 9 is fixed transversely at the top of the chamber 101. The bottoms of the spray nozzle 41 and the atomizing nozzle 42 pass through the horizontal plate 9. The horizontal plate 9 and the side wall of the chamber 101 are sealed and fixed to enhance the installation stability of the nozzle 4, ensure the sealing of the chamber 101, and prevent gas leakage. The horizontal plate 9 is fixed transversely to the top of the chamber. The bottom of the nozzle 4 passes through the horizontal plate 9 and is sealed; the horizontal plate 9 divides the chamber 101 into two parts, the upper and lower parts, and the nozzle 4 is connected to the chamber 101 only through the sealing hole to prevent airflow bypass.

[0040] Working principle: The dust-laden gas enters the chamber 101 synchronously from the air inlets at both ends of the tank body 1. Since the two ends of the tank body 1 are designed in a conical shape and the air inlet is located at the end of the cone, this design can improve the airflow distribution and reduce the impact of high-speed airflow on the dust removal channel 3. The water supply device 2 is connected to multiple nozzles 4 through a pipeline, and the water source is extracted and pressurized and distributed to each nozzle 4. The nozzle 4 includes a spray nozzle 4 and an atomizing nozzle 4, which are respectively arranged above the ascending channel 31 and the descending channel 32. The spray nozzle 4 sprays large-particle water mist (80-150μm) for capturing coarse dust; the atomizing nozzle 4 sprays small-particle water mist (30-80μm) for capturing fine dust. This method of accurately distributing water mist of different particle sizes optimizes the graded capture of coarse dust and fine dust.

[0041] After the dust-laden gas enters the continuously curved dust removal channel 3, water mist flowing from top to bottom is formed inside the ascending channel 31 and the descending channel 32. In the ascending channel 31, the large-particle water mist exchanges momentum with the high-speed coarse dust, causing it to settle; in the descending channel 32, the small-particle water mist forms a dense collection group to intercept fine particles moving with the airflow. At the same time, the local vortex generated by the curved channel strengthens the agglomeration of dust and water droplets, improving the dust removal efficiency.

[0042] The purified gas is discharged through the middle gas outlet pipe 6. The gas outlet pipe 6 is fixed in the middle of the tank body 1, and the lower end passes through the horizontal plate 9 and extends to the bottom of the chamber 101 and leaves a gap with the lower end of the chamber 101, ensuring that the purified gas is discharged efficiently and preventing droplets from entering the gas outlet pipe 6. This design ensures the smooth discharge of gas and avoids the entry of droplets.

[0043] Dust-containing droplets form a sedimentation layer at the bottom of the tank 1, which is discharged regularly through the liquid outlet pipe 10 and the branch pipe connected thereto. The branch pipe is connected to the lowest point of the corresponding slope to efficiently collect dust-containing droplets, avoid the sedimentation layer blocking the channel, and ensure the continuous operation of the equipment. The slope design reduces the residual droplets and improves the drainage efficiency.

[0044] Finally, it should be noted that the above embodiments are only used to illustrate rather than limit the technical solutions of the present invention. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that the present invention can still be modified or replaced by equivalents. Any modification or partial replacement that does not depart from the spirit and scope of the present invention should be included in the scope of the claims of the present invention.

Claims

1. A water mist dust collector, characterized in that: include: A tank body (1), wherein a chamber (101) is provided inside the tank body (1), air inlets are provided at both ends of the chamber (101), an air outlet pipe (6) is provided in the middle of the chamber (101), and a plurality of nozzles (4) are provided at the top of the chamber (101); A water supply device (2), wherein the water supply device (2) is connected to a plurality of nozzles (4) via a pipeline; There are two dust removal channels (3), the dust removal channels (3) being arranged between an air inlet and an air outlet pipe (6), the dust removal channels (3) being in a continuously bent shape inside a chamber (101), and being capable of forming an ascending channel (31) and a descending channel (32) inside the chamber (101), and being capable of forming water mist flowing from top to bottom inside the ascending channel (31) and the descending channel (32), wherein the diameter of water droplets of the water mist inside the ascending channel (31) is greater than the diameter of water droplets formed inside the descending channel (32).

2. A water mist dust collector according to claim 1, characterized in that: An upper baffle (7) and a lower baffle (8) are installed in a spaced relationship inside the chamber (101); the upper baffle (7) is fixed to the top of the chamber (101), and a gap is left between the upper baffle (7) and the bottom of the chamber (101); the lower baffle (8) is fixed to the bottom of the chamber (101), and a gap is left between the lower baffle (8) and the top of the chamber (101); and the two sides of the lower baffle (8) are respectively an ascending channel (31) and a descending channel (32).

3. A water mist dust collector according to claim 2, characterized in that: A plurality of liquid supply trays (5) are fixed on the top of the tank body (1), the liquid supply trays (5) extending into the interior of the chamber (101), the liquid supply trays (5) being arranged above the lower partition (8), and a spray nozzle (4) and an atomizing nozzle (4) being fixed on the bottom of each of the liquid supply trays (5), the spray nozzle (4) being arranged above the ascending channel (31), and the atomizing nozzle (4) being arranged above the descending channel (32).

4. A water mist dust collector according to claim 3, characterized in that: A liquid storage chamber is provided inside the spray nozzle (41), the liquid storage chamber is communicated with a pipeline, and a plurality of spray holes are provided at the spray outlet of the spray nozzle (41), the spray holes are arranged vertically.

5. The water mist dust collector according to claim 3, characterized in that: A thinning channel (421) is provided inside the atomizing nozzle (42), and a stopper (422) is provided at the end of the thinning channel (421).

6. A water mist dust collector according to claim 3, characterized in that: A transverse plate (9) is transversely fixed at the top of the chamber (101); the bottoms of the spray nozzle (41) and the atomizing nozzle (42) pass through the transverse plate (9); and the transverse plate (9) is sealed and fixed to the side wall of the chamber (101).

7. A water mist dust collector according to claim 2, characterized in that: A liquid outlet pipe (10) is provided at the bottom of the tank body (1), and the liquid outlet pipe (10) is connected to multiple positions of the dust removal channel (3) through branch pipes. A branch pipe is provided on both sides of each lower partition plate (8). The lower surface of the chamber (101) is an inclined surface, and the branch pipe is connected to the lowest point of the corresponding inclined surface.

8. The water mist dust collector according to claim 1, characterized in that: The chamber (101) inside the tank body (1) has a circular cross-section, and the top of the tank body (1) is a plane, with the liquid supply tray (5) being installed inside the plane.

9. The water mist dust collector according to claim 1, characterized in that: Both ends of the tank body (1) are in a conical shape, and two air inlets are provided at the ends of the cones at both ends.

10. The water mist dust collector according to claim 6, characterized in that: The air outlet pipe (6) is fixed in the middle of the tank body (1), and the lower end thereof passes through the transverse plate (9) and extends to the bottom of the chamber (101) and leaves a gap with the lower end of the chamber (101).

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