A device and method for removing dust from a turbulent flow field by oscillating microdroplets

Abstract

This invention relates to the fields of energy and environmental protection, specifically disclosing a micro-droplet oscillation dust removal device in a turbulent field. It includes a fan for conveying the gas to be treated, a settling buffer tank for primary dust removal of the gas, a micro-droplet oscillation dust collector for secondary dust removal of the gas, a demister for removing droplets from the gas after secondary dust removal, a water pump for supplying circulating water to the micro-droplet oscillation dust collector at its inlet, and a circulating water tank for collecting micro-droplets inside the dust collector located below its outlet. This invention's micro-droplet oscillation dust removal device in a turbulent field has high dust removal efficiency, simple structure, small footprint, and is suitable for large-scale dust removal.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of energy and environmental protection, in particular to a micro-liquid droplet oscillation dust removal device in a turbulent flow field. BACKGROUND

[0002] PM2.5 in smoke is the main factor of forming haze, which not only seriously affects the air quality, but also affects people's health, thereby further affecting the sustainable development of China's economy and society.

[0003] Research shows that liquid droplets have good trapping effect on particulate matter, and the liquid phase absorbed by the particulate matter can be recycled for dust removal process after settling in the water tank. The commonly used dust removal methods are bag dust removal and electrostatic dust removal. However, the service life of bag dust removal is short, and the filter material needs to be replaced frequently, and the space occupation is large. The process flow of electrostatic dust removal is complex, the operation is complex, and the investment cost is high, which is not suitable for large-scale dust removal device.

[0004] Therefore, it is necessary to provide a micro-liquid droplet oscillation dust removal device in a turbulent flow field to solve or overcome the above technical problems. SUMMARY

[0005] The problem to be solved by the present application is to provide a micro-liquid droplet oscillation dust removal device in a turbulent flow field, which has high dust removal efficiency, simple structure, small space occupation, low investment cost and is suitable for large-scale dust removal.

[0006] In addition, the technical problem to be solved by the present application is to provide a micro-liquid droplet oscillation dust removal method in a turbulent flow field, which can efficiently filter particulate matter in the gas to be treated and is suitable for large-scale dust removal.

[0007] In order to solve the above technical problems, the present application provides a micro-liquid droplet oscillation dust removal device in a turbulent flow field, which comprises a fan for conveying the gas to be treated, the fan is communicated with a settling buffer tank for primary dust removal of the gas to be treated, the settling buffer tank is communicated with a micro-liquid droplet oscillation dust removal device for secondary dust removal of the gas to be treated, the micro-liquid droplet oscillation dust removal device is communicated with a mist eliminator for removing mist from the gas subjected to secondary dust removal by the micro-liquid droplet oscillation dust removal device, a water pump for conveying circulating water into the micro-liquid droplet oscillation dust removal device is communicated with the liquid inlet of the micro-liquid droplet oscillation dust removal device, and a circulating water tank for collecting micro-liquid droplets in the micro-liquid droplet oscillation dust removal device is arranged below the liquid outlet of the micro-liquid droplet oscillation dust removal device.

[0008] Preferably, the bottom of the demister is also provided with a recovery pipe, which is used to transport the mist droplets separated in the demister to the circulating water tank.

[0009] Preferably, the microdroplet oscillating dust collector is provided with a cylindrical body, and the cylindrical body is provided with a plurality of through holes for the circulating water to be injected into the cylindrical body.

[0010] Preferably, it also includes a differential pressure gauge, which is used to detect the pressure difference between the air inlet and the air outlet of the micro-droplet oscillating dust collector.

[0011] Preferably, the microdroplet oscillating dust collector is installed in a single-stage, multi-stage series, or parallel connection.

[0012] Preferably, a gas flow meter is installed on the output pipe of the settling buffer tank to detect the gas flow rate after the primary dust removal of the settling buffer tank, and a liquid flow meter is installed on the output pipe of the water pump to detect the circulating water flow rate.

[0013] Correspondingly, the present invention also provides a method for removing dust by micro-droplet oscillation in a turbulent field, comprising the following steps: S1: conveying the gas to be treated to a settling buffer tank for primary dust removal of large-diameter dust particles;

[0014] S2: The gas to be treated after primary dust removal is transported to a micro-droplet oscillating dust collector to form a gas-phase turbulent field. The gas-phase turbulent field cuts the circulating water injected through the through-holes on the cylindrical body to form micro-droplets. The micro-droplets are further subjected to the shear force of the gas-phase turbulent field to encapsulate and iterate, adsorbing small-diameter dust particles in the gas to be treated, thus completing the secondary dust removal of the gas to be treated; S3: The gas output from the micro-droplet oscillating dust collector is transported to the demister to remove the mist droplets in the gas before being discharged.

[0015] Preferably, in step S2, the gas to be treated after one dust removal process enters the micro-droplet oscillating dust collector at high speed tangentially through the air inlet of the micro-droplet oscillating dust collector to generate a gas phase turbulent flow field with huge centrifugal force.

[0016] Preferably, in step S2, a microdroplet oscillating dust collector with an appropriate diameter is selected for dust removal based on the different flow rates of the gas to be treated.

[0017] Preferably, the large-diameter dust particles are particles larger than 100 μm, and the small-diameter dust particles are particles larger than 0.1 μm and less than or equal to 100 μm.

[0018] The beneficial effects of the present invention through the above technical solution are as follows:

[0019] The micro-droplet oscillating dust removal device in the turbulent field of this invention includes a fan that transports the gas to be treated to a settling buffer tank for primary dust removal. The output end of the settling buffer tank is connected to a micro-droplet oscillating dust collector, which performs secondary dust removal on the gas. The output end of the micro-droplet oscillating dust collector is connected to a demister to remove mist droplets from the gas after secondary dust removal. A water pump is connected to the inlet of the micro-droplet oscillating dust collector, which delivers circulating water into the collector. A circulating water tank for collecting micro-droplets inside the collector is located below the outlet of the collector. This micro-droplet oscillating dust removal device in the turbulent field has high dust removal efficiency, simple structure, small footprint, and low investment cost, making it suitable for large-scale dust removal.

[0020] Other features and advantages of the present invention will be specifically described in the following detailed embodiments. Attached Figure Description

[0021] Fig. 1 This is a schematic diagram of the micro-droplet oscillation dust removal device in a turbulent field according to a specific embodiment of the present invention;

[0022] Fig. 2 This is a schematic diagram of the microdroplet oscillating dust collector according to a specific embodiment of the present invention;

[0023] Fig. 3 This is a schematic diagram illustrating the working principle of the microdroplet oscillating dust collector in a specific embodiment of the present invention.

[0024] Explanation of reference numerals in the attached figures

[0025] 1. Gas to be treated; 2. Fan; 3. Settling buffer tank; 4. Gas flow meter; 5. Micro-droplet oscillating dust collector; 501. Liquid inlet; 502. Cylindrical body; 503. Gas outlet; 504. Gas inlet; 505. Liquid outlet; 6. Demister; 7. Differential pressure gauge; 8. Liquid flow meter; 9. Water pump; 10. Circulating water tank; 11. Purified gas; 12. Circulating water; 13. Micro-droplets; 14. Recovery pipeline. Detailed Implementation

[0026] The specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0027] First, it should be noted that some directional terms used in the following description to clearly illustrate the technical solutions of the present invention are only for the convenience of describing the present invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0028] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0029] The basic embodiment of the present invention provides a micro-droplet oscillation dust removal device in a turbulent field, see [link to relevant documentation]. Figs. 1 to 3 As shown, the system includes a fan 2 for conveying the gas to be treated 1, a settling buffer tank 3 for primary dust removal of the gas to be treated 1, a micro-droplet oscillating dust collector 5 for secondary dust removal of the gas to be treated 1, a demister 6 for removing droplets from the gas after secondary dust removal by the micro-droplet oscillating dust collector 5, a water pump 9 for conveying circulating water 12 into the micro-droplet oscillating dust collector 5 at the inlet 501 of the micro-droplet oscillating dust collector 5, and a circulating water tank 10 for collecting micro-droplets 13 inside the micro-droplet oscillating dust collector 5 located below the outlet 505 of the micro-droplet oscillating dust collector 5.

[0030] It should be noted that the micro-droplet oscillation dust removal device in the turbulent field of the present invention includes a fan 2. The fan 2 transports the gas to be treated 1 to a settling buffer tank 3 through a connecting pipe for primary dust removal. The primary dust removal utilizes the principle of settling separation to remove large-diameter particles in the gas to be treated 1. Specifically, under the action of gravity, the large-diameter particles in the gas to be treated 1 will fall to the bottom of the settling buffer tank 3, thereby achieving the purpose of separation. A valve is installed on the connecting pipe between the fan 2 and the settling buffer tank 3. Controlling the opening of the valve can control the flow rate of the gas entering the settling buffer tank 3. A micro-droplet oscillation dust collector 5 is connected to the output end of the settling buffer tank 3. The micro-droplet oscillation dust collector 5 can perform secondary dust removal on the gas to be treated 1 after passing through the settling buffer tank 3. The secondary dust removal mainly utilizes the principle of centrifugal oscillation to remove small-diameter particles in the gas to be treated 1. More specifically, liquid inlets 501 are provided on both sides of the micro-droplet oscillating dust collector 5. The liquid inlets 501 are connected to a water pump 9 via connecting pipes. The water pump 9 is installed in a circulating water tank 10, which can transport circulating water 12 into the micro-droplet oscillating dust collector 5. A liquid outlet 505 is provided at the bottom of the micro-droplet oscillating dust collector 5, facing the circulating water tank 10. The circulating water tank 10 can collect micro-droplets 13 inside the micro-droplet oscillating dust collector 5, and the circulating water 12 can continuously circulate between the micro-droplet oscillating dust collector 5 and the circulating water tank 10. A demister 6 is installed at the output end of the micro-droplet oscillating dust collector 5 via a connecting pipe. The demister 6 filters the mist droplets in the gas to be treated 1 after secondary dust removal and discharges the purified gas 11. This invention utilizes a two-stage dust removal system formed between a settling buffer tank 3 and a micro-droplet oscillating dust collector 5 to efficiently remove particulate matter from the gas to be treated 1. The structure is simple, and the fan 2, water pump 9, and settling buffer tank 3 occupy little space. The micro-droplet oscillating dust collector 5 and the demister 6 are integrated into a single design, resulting in low investment costs and suitability for large-scale dust removal.

[0031] The specific working process is as follows: First, the fan 2 is started, and the fan 2 transports the gas to be treated 1 to the settling buffer tank 3. The settling buffer tank 3 performs primary dust removal on the large-diameter dust particles in the gas to be treated 1. Then, the gas to be treated 1 after primary dust removal is transported to the micro-droplet oscillating dust collector 5 to form a gas phase turbulence field. At the same time, the water pump 9 transports the circulating water 12 into the interior of the micro-droplet oscillating dust collector 5. The gas phase turbulence field cuts the injected circulating water 12 to form micro-droplets 13. The micro-droplets 13 are further subjected to the shear force of the gas phase turbulence field to perform encapsulation and iterative motion, adsorbing the small-diameter dust particles in the gas to be treated 1, completing the secondary dust removal of the gas to be treated 1. The encapsulation and iterative motion refers to the micro-droplets 13 continuously encapsulating the small-diameter dust particles. Finally, the gas to be treated 1 after passing through the secondary micro-droplets 13 is transported from the output end of the micro-droplet oscillating dust collector 5 to the demister 6. The demister 6 filters the mist droplets in the gas to be treated 1 and discharges the purified gas 11.

[0032] Furthermore, a recovery pipe 14 is also provided at the bottom of the demister 6. The recovery pipe 14 is used to transport the mist droplets separated in the demister 6 to the circulating water tank 10. It should be noted that some mist droplets are still mixed in with the gas to be treated 1 after secondary dust removal by the micro-droplet oscillating dust collector 5. If these mist droplets are not removed, the purity of the purified gas 11 will be affected. Therefore, a recovery pipe 14 is installed at the bottom of the demister 6 by means of threaded connection or flange connection. The diameter of the recovery pipe 14 can be selected according to the amount of mist droplets discharged. A valve is installed on the recovery pipe 14. The opening degree of the valve can be adjusted according to the working needs. The recovery pipe 14 transports the mist droplets separated in the demister 6 to the circulating water tank 10. The water pump 9 transports these mist droplets to the micro-droplet oscillating dust collector 5 to participate in the secondary dust removal of the gas to be treated 1, so as to realize the recycling of mist droplets.

[0033] As a specific embodiment of the micro-droplet oscillating dust collector 5, the micro-droplet oscillating dust collector 5 is provided with a cylindrical body 502, and the cylindrical body 502 is provided with a number of through holes for circulating water 12 to be injected into the cylindrical body 502. It should be noted that a cylindrical body 502 is installed inside the micro-droplet oscillating dust collector 5. The cylindrical body 502 is arranged along the central axis of the micro-droplet oscillating dust collector 5. Circulating water 12 is sprayed into the interior of the micro-droplet oscillating dust collector 5 through the through hole opened on the cylindrical body 502 from the liquid inlet 501. When the gas to be treated 1 enters the micro-droplet oscillating dust collector 5 tangentially from the air inlet 504, a gas phase turbulence field is generated. The gas phase turbulence field cuts the sprayed circulating water 12 to form countless micro-droplets 13. The particle size range of the micro-droplets 13 is 500μm-700μm. The micro-droplets 13 are further subjected to the shear force of the gas phase turbulence field to carry out iterative motion of coating, adsorbing small-diameter dust particles in the gas to be treated 1. It should be noted that a differential pressure gauge 7 is installed between the air inlet 504 and the air outlet 503 of the micro-droplet oscillating dust collector 5. The differential pressure gauge 7 is preferably a U-shaped differential pressure gauge. The differential pressure gauge 7 can detect the pressure between the air inlet 504 and the air outlet 503. According to different working conditions, the differential pressure value needs to be kept within the corresponding range so as to ensure the dust removal efficiency of the secondary dust removal to a certain extent.

[0034] Furthermore, the micro-droplet oscillating dust collector 5 can be installed in a single-stage, multi-stage series, or parallel connection. It should be noted that, since the particle sizes in the gas to be treated 1 vary, micro-droplet oscillating dust collectors 5 of different diameters are required for separation. Preferably, the micro-droplet oscillating dust collectors 5 are connected in series in multiple stages. In a single-stage installation, the gas to be treated 1 passes through a single micro-droplet oscillating dust collector 5 before entering the demister 6. In a multi-stage series installation, multiple micro-droplet oscillating dust collectors 5 are connected sequentially, one end to the other. Specifically, the outlet of the first micro-droplet oscillating dust collector 5 is connected to the inlet of the second micro-droplet oscillating dust collector 5, and so on, connecting multiple micro-droplet oscillating dust collectors 5 in series. The outlet of the last micro-droplet oscillating dust collector 5 is then connected to the demister 6. In a multi-stage parallel installation, the gas to be treated 1 enters through the inlets of multiple micro-droplet oscillating dust collectors 5, and finally, the gas separated from the multiple micro-droplet oscillating dust collectors 5 is collected and enters the demister 6.

[0035] Furthermore, a gas flow meter 4 is installed on the output pipe of the settling buffer tank 3 to detect the gas flow rate after primary dust removal in the settling buffer tank 3, and a liquid flow meter 8 is installed on the output pipe of the water pump 9 to detect the flow rate of the circulating water 12. It should be noted that in order to ensure that the gas flow rate entering the micro-droplet oscillating dust collector 5 is within a suitable range, a gas flow meter 4 needs to be installed on the output pipe of the settling buffer tank 3. When the gas flow rate is detected to be outside the set range, the control system controls the fan 2 to increase or decrease the gas flow rate of the gas to be treated 1. Similarly, a liquid flow meter 8 is installed on the output pipe of the water pump 9. The liquid flow meter 8 can monitor the amount of circulating water delivered by the water pump 9 into the micro-droplet oscillating dust collector 5. When the input circulating water 12 is outside the set range, the control system controls the water pump 9 to increase or decrease the amount of circulating water 12 it draws in.

[0036] Furthermore, based on the microdroplet oscillation dust removal device in the turbulent field of the present invention, the present invention also provides a method for microdroplet oscillation dust removal in the turbulent field, comprising the following steps:

[0037] S1: The gas to be treated 1 is transported to the settling buffer tank 3 for primary dust removal of large-diameter dust particles;

[0038] S2: The gas to be treated 1 after the first dust removal is transported to the micro-droplet oscillating dust collector 5 to form a gas phase turbulence field. The circulating water 12 injected through the through hole on the cylindrical body 502 is cut by the gas phase turbulence field to form micro-droplets 13. The micro-droplets 13 are further subjected to the shear force of the gas phase turbulence field to carry out iterative motion to adsorb small-diameter dust particles in the gas to be treated 1, so as to complete the secondary dust removal of the gas to be treated 1.

[0039] S3: The gas output from the micro-droplet oscillating dust collector 5 is transported to the demister 6 to remove the mist droplets in the gas before being discharged.

[0040] More specifically, in step S1 above, large-diameter dust particles (greater than 100 μm) are subjected to primary dust removal through the settling buffer tank 3. In step S2 above, the gas to be treated 1, after primary dust removal, enters the micro-droplet oscillating dust collector 5 at high speed tangentially along the air inlet 504. Here, high speed tangentially means that the gas to be treated 1 enters the micro-droplet oscillating dust collector 5 at high velocity along the tangential direction of the outer wall of the micro-droplet oscillating dust collector 5, generating a gas-phase turbulent flow field with huge centrifugal force to cut the injected circulating water 12, forming micro-droplets 13, which can increase the adsorption and capture probability of small-diameter dust particles, and improve dust removal efficiency and accuracy. It should be noted that, depending on the flow rate of the gas 1 to be treated, selecting a micro-droplet oscillating dust collector 5 with an appropriate diameter can increase the dust removal efficiency for small-diameter dust particles. These small-diameter dust particles are defined as particles larger than 0.1 μm and less than or equal to 100 μm. In step S3 above, the concentration of dust particles in the gas 1 to be treated after passing through the demister 6 is not higher than 5 mg / m³. 3 The separation efficiency is as high as 99% or more.

[0041] As a relatively preferred embodiment of the present invention, refer to Figs. 1 to 3 A micro-droplet oscillating dust removal device for turbulent flow is provided, comprising a fan 2, a settling buffer tank 3 connected to the fan 2, a gas flow meter 4 installed on the output pipe of the settling buffer tank 3, the settling buffer tank 3 connected to the air inlet 504 of the micro-droplet oscillating dust collector 5, a cylindrical body 502 provided inside the micro-droplet oscillating dust collector 5, a through hole provided on the cylindrical body 502, an air outlet 503 of the micro-droplet oscillating dust collector 5 connected to a demister 6, a differential pressure gauge 7 provided between the air inlet 504 and the air outlet 503, a recovery pipe 14 provided at the bottom of the demister 6, a liquid inlet 501 of the micro-droplet oscillating dust collector 5 connected to a water pump 9, a liquid flow meter 8 installed on the output pipe of the water pump 9, and a circulating water tank 10 provided below the liquid outlet 505 of the micro-droplet oscillating dust collector 5.

[0042] The specific working process is as follows: First, the blower 2 is started, and the blower 2 transports the gas to be treated 1 to the settling buffer tank 3. The settling buffer tank 3 performs primary dust removal on the large-diameter dust particles in the gas to be treated 1. Then, the gas to be treated 1 after primary dust removal is transported to the air inlet 504 of the micro-droplet oscillating dust collector 5. During this process, the flow rate of the gas to be treated 1 after primary dust removal is detected by the gas flow meter 4. The gas to be treated 1 enters the micro-droplet oscillating dust collector 5 at high speed and tangentially to form a gas phase turbulent flow field. At the same time, the water pump 9 transports the circulating water 12 to the liquid inlet 501 of the micro-droplet oscillating dust collector 5. During this process, the flow rate of the circulating water 12 transported by the water pump 9 is detected by the liquid flow meter 8. The liquid inlet 501 sprays water into the interior of the micro-droplet oscillating dust collector 5 through a through hole on the cylindrical body 502. The gas phase turbulence field cuts the injected circulating water 12 to form micro-droplets 13. The micro-droplets 13 are further subjected to the shear force of the gas phase turbulence field to carry out iterative motion, adsorbing small-diameter dust particles in the gas to be treated 1, completing the secondary dust removal of the gas to be treated 1. Finally, the gas to be treated 1 after passing through the secondary micro-droplets 13 is transported from the outlet 503 of the micro-droplet oscillating dust collector 5 to the demister 6. The demister 6 filters the mist droplets in the gas to be treated 1 and discharges the purified gas 11, while the mist droplets are discharged into the circulating water tank 10 from the recovery pipe 14.

[0043] The following description uses two specific examples from actual production. The first example is a 480Nm process at a petrochemical plant. 3 The exhaust gas volume is approximately 500 mg / m³. 3 The dust removal device and method for micro-droplet oscillation in a turbulent field, as described in this invention, wherein the circulating water flow rate is 1000 kg / h, and the process continues for 24 hours. The solid particulate matter emission after treatment by the above dust removal device is approximately 5 mg / m³. 3 The following conditions are met in accordance with the "Integrated Emission Standard for Air Pollutants" (GB16297-1996), with a particulate matter separation efficiency of over 99%. The second example is flue gas from a coal-fired plant, with a temperature of 1100℃ and a particulate matter separation efficiency of 700 Nm³. 3 / h, first undergo cooling treatment, the solid particulate matter content is approximately 650mg / m³ 3 The dust removal device and method for micro-droplet oscillation in turbulent fields according to the present invention, wherein the circulating water flow rate is 1500 kg / h, continuously for 24 hours, and the solid particulate matter emission after treatment by the above dust removal device is approximately 6.31 mg / m³. 3 The following specifications meet the "Integrated Emission Standard for Air Pollutants" (GB16297-1996), with a solid particulate matter separation efficiency of 99.02%.

[0044] The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the specific details of the above embodiments. Within the scope of the technical concept of the present invention, various simple modifications can be made to the technical solution of the present invention, and these simple modifications all fall within the protection scope of the present invention.

[0045] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present invention will not describe the various possible combinations separately.

[0046] Furthermore, various different embodiments of the present invention can be combined in any way, as long as they do not violate the spirit of the present invention, they should also be regarded as the content disclosed by the present invention.

Claims

1. A microdroplet oscillation dust removal device in a turbulent field, characterized in that, The system includes a fan (2) for conveying the gas to be treated (1), the fan (2) being connected to a settling buffer tank (3) for primary dust removal of the gas to be treated (1), the settling buffer tank (3) being connected to a micro-droplet oscillating dust collector (5) for secondary dust removal of the gas to be treated (1), the micro-droplet oscillating dust collector (5) being connected to a demister (6) for removing droplets from the gas after secondary dust removal by the micro-droplet oscillating dust collector (5), the inlet (501) of the micro-droplet oscillating dust collector (5) being connected to a water pump (9) for conveying circulating water (12) into the micro-droplet oscillating dust collector (5), and a circulating water tank (10) for collecting micro-droplets (13) inside the micro-droplet oscillating dust collector (5) being provided below the outlet (505) of the micro-droplet oscillating dust collector (5). The micro-droplet oscillating dust collector (5) is provided with a cylindrical body (502). The cylindrical body (502) is provided with several through holes for the circulating water (12) to be injected into the cylindrical body (502). The air inlet (504) of the micro-droplet oscillating dust collector (5) is configured so that the gas to be treated (1) enters the micro-droplet oscillating dust collector (5) along the tangential direction of the outer wall of the micro-droplet oscillating dust collector (5). The air inlet (504) is located at the upper part of the micro-droplet oscillating dust collector (5). The air outlet pipe of the micro-droplet oscillating dust collector (5) extends from the top of the micro-droplet oscillating dust collector (5) to the bottom of the inner cavity of the micro-droplet oscillating dust collector (5) along the axial direction of the micro-droplet oscillating dust collector (5).

2. The microdroplet oscillation dust removal device in a turbulent field according to claim 1, characterized in that, The bottom of the demister (6) is also provided with a recovery pipe (14), which is used to transport the mist droplets separated in the demister (6) to the circulating water tank (10).

3. The microdroplet oscillation dust removal device in a turbulent field according to claim 1, characterized in that, It also includes a differential pressure gauge (7) for detecting the pressure difference between the air inlet (504) and the air outlet (503) of the microdroplet oscillating dust collector (5).

4. The microdroplet oscillation dust removal device in a turbulent field according to any one of claims 1 to 3, characterized in that, The micro-droplet oscillating dust collector (5) can be installed in a single-stage, multi-stage series or parallel connection.

5. The microdroplet oscillation dust removal device in a turbulent field according to any one of claims 1 to 3, characterized in that, A gas flow meter (4) is installed on the output pipe of the settling buffer tank (3) to detect the gas flow rate after the first-stage dust removal of the settling buffer tank (3), and a liquid flow meter (8) is installed on the output pipe of the water pump (9) to detect the flow rate of the circulating water (12).

6. A method for dust removal by microdroplet oscillation in a turbulent field, characterized in that, The dust removal method based on the microdroplet oscillation dust removal device in a turbulent field according to any one of claims 1 to 5 includes the following steps: S1: The gas to be treated (1) is transported to the settling buffer tank (3) for primary dust removal of large-diameter dust particles; S2: The gas to be treated (1) after one dust removal is transported to the micro-droplet oscillating dust collector (5) to form a gas phase turbulence field. The circulating water (12) injected through the through hole on the cylindrical body (502) is cut by the gas phase turbulence field to form micro-droplets (13). The micro-droplets (13) are further subjected to the shear force of the gas phase turbulence field to carry out iterative motion and adsorb small-diameter dust particles in the gas to be treated (1) to complete the secondary dust removal of the gas to be treated (1). S3: The gas output from the micro-droplet oscillating dust collector (5) is transported to the demister (6) to remove the mist droplets in the gas before being discharged.

7. The method for dust removal by microdroplet oscillation in a turbulent field according to claim 6, characterized in that, In step S2, the gas to be treated (1) after one dust removal process enters the micro-droplet oscillating dust collector (5) at high speed tangentially through the air inlet (504) to generate a gas phase turbulent flow field with huge centrifugal force.

8. The method for dust removal by microdroplet oscillation in a turbulent field according to claim 6, characterized in that, In step S2, the microdroplet oscillating dust collector (5) with an appropriate diameter is selected for dust removal according to the different flow rates of the gas to be treated (1).

9. The method for dust removal by microdroplet oscillation in a turbulent field according to claim 6, characterized in that, The large-diameter dust particles are particles larger than 100 μm, and the small-diameter dust particles are particles larger than 0.1 μm and less than or equal to 100 μm.

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