CN107115968A - A kind of high-effective dust-removing block preparation method - Google Patents

Abstract

The invention discloses a method for preparing a high-efficiency dust removal module, which belongs to the technical field of dust removal and environmental protection. The method is to first use the pre-charger to charge the dust particles in the airflow, and then let the airflow pass through the cylindrical metal hole filled with twisted wire brushes, and the wall of the hole and the brush handle of the twisted wire brush in the hole are all loaded with voltage, so that The dust particles entering the tunnel fly to the wall of the tunnel or the brush handle of the twisted wire brush by the principle of opposite sex attraction, so as to complete the dust capture. The captured dust is not easy to escape due to the action of the bristles. When the surface of the twisted wire brush bristles is coated When the viscous insulating liquid is used, the dust can be firmly adhered. The module has low resistance and high dust removal efficiency, which is more suitable for dust removal and purification of indoor air.

Description

A kind of preparation method of high-efficiency dust removal module

technical field

The invention relates to a method for preparing a high-efficiency dust removal module, which belongs to the technical field of dust removal and environmental protection.

Background technique

With the rapid development of my country's economy, the haze air pollution in large and medium-sized cities, economically developed areas and areas with intensive basic industries in my country is becoming more and more serious. With my country's increasingly stringent restrictions on SOx and NOx emissions, and the continuous use of related environmental protection technologies and devices, the total emissions of SOx and NOx pollutants in the atmospheric environment in my country have been decreasing year by year. However, from the current monitoring results, my country's Yangtze River Delta The smog pollution in China, the Pearl River Delta and the Beijing-Tianjin-Hebei area has not been significantly reduced, and it has seriously threatened the health of the people and the sustainable development of the economy. The explosive growth of China's atmospheric aerosol pollution is related to China's current unique multi-pollutant compound pollution status: when the atmosphere contains NOx, SOx, VOCs, _NH3 and other pollutants at the same time, the secondary organic aerosol and the secondary inorganic Particles (including nitrates, sulfates, and ammonium salts) often undergo explosive particle growth under sunlight radiation, and quickly become smog particles with extinction after the inorganic particles absorb moisture and increase. Because smog particles can quickly pass through the alveolar barrier and enter the human blood, the large-scale and high-intensity atmospheric smog pollution in our country must be taken seriously.

In terms of the complexity and arduousness of air pollution control in my country, it will take quite a long time to significantly improve the air quality, and people spend most of their time indoors. High-efficiency dust removal technology to remove haze particles in the atmosphere.

The most mature indoor air particle removal technology is the use of HEPA filter elements, which is also the technical solution adopted by most air purifier manufacturers. However, HEPA has a large pressure drop, resulting in high noise and high energy consumption of power equipment. At the same time, HEPA cannot be cleaned and must be cleaned regularly. Replacement, so the cost of HEPA makes the operating cost of indoor air cleaners high. The research team prepared a low air resistance gas particle purification module (ZL201210418554.4) by stuffing twisted wire brushes into the pores of porous media. Particle removal is poor. The technical solution of spray water washing is also used in some air purification devices, but the spray will cause excessive humidification of the indoor air, and its particle removal effect is not high. At the same time, because the spray water is often tap water, the salt caused by the hardness of the water makes the spray droplets After volatilization, it increases the number of particles in the indoor air. The research team also developed a semi-wet electrostatic dust removal (demisting) device (CN201510593461.9), which uses a circular plate partially submerged under the liquid surface as a dust collector, and the positive and negative charges are staggered. The device can efficiently remove the fine particles and avoid the secondary escape of dust in the common dry electrostatic precipitator process. However, the structure of the device is complicated, the processing is difficult, and it must be placed at a high level. Otherwise, electrical breakdown accidents between liquid tanks of different electrical properties will occur.

To sum up, at present, my country urgently needs a dust removal device with small air resistance, large flux, and simple flexibility, which is of great significance for realizing air purification in the living environment and reducing the harm of smog particles to the human body.

The research team creatively coupled the twisted wire brush dust removal module with the principle of electrostatic dust removal, and obtained a dust removal module with good dust removal ability, low pressure drop, and efficient capture and removal of fine particles in the air.

Contents of the invention

The purpose of the present invention is to obtain a high-efficiency dust removal module with low air resistance and high flux through a simple method. The module has a compact structure and a simple manufacturing method, and is very suitable for removing fine particles in indoor air.

The purpose of the present invention is achieved through the following technical solutions: the high-efficiency dust removal module is composed of a charging module and a charging twisted wire brush dust removal module. During the dust removal process, the charging module is first used to charge the dust in the airflow, That is to make the dust-laden air flow pass through the electric field of the charging module with the corona electrode and the dust collecting electrode, so as to charge the dust in the air flow, and then let the air flow pass through the charged twisted wire brush dust removal module, and the charged twisted wire The brush dust removal module is a metal module with more than one airflow channel. The airflow channels are parallel to each other and the channels are cylindrical. The inside of the airflow channel is filled with twisted wire brushes. The brush handles of the twisted wire brushes in each air flow channel pass through wires or guide rods. Connect with each other and load voltage, and the outer wall of the metal module loads the opposite voltage to the handle of the twisted wire brush. The brush handle of the twisted wire brush and the inner wall of the airflow channel of the metal module are separated by the bristles of the twisted wire brush. The charge between the brush handle and the inner wall of the airflow channel of the metal module is opposite, so the positively or negatively charged particles in the airflow will move to the twisted wire brush handle or the inner wall of the airflow channel of the metal module on the principle of opposite sex attraction, and finally complete the dust removal. At the same time, the surface of the twisted wire brush bristles is coated with a layer of insulating dust-binding agent to adhere and fix the dust particles. When the dust removal module absorbs too much dust, the dust will be washed away by washing and the module will be regenerated. .

The feature of this air dust removal and purification device is that the corona electrode voltage of the charging module at the front end of the purifier is -3~-20kV, or 3~20kV, and the corona electrode is a round wire or a star wire with a nominal diameter of 0.1~1mm. , spiral wire, the pole spacing is 0.5 ~ 10cm, the dust collector is grounded; the material of the metal module used in the charged twisted wire brush dust removal module is carbon steel, stainless steel, iron, aluminum, copper or aluminum alloy; the charged twisted wire The diameter of the airflow channel in the metal module used by the brush dust removal module is 10mm to 100mm, and the length of the airflow channel is 5cm to 80cm; the two twisted wires in the center of the twisted wire brush are made of carbon steel, stainless steel, iron, aluminum, Copper or aluminum alloy, the material of twisted wire brush bristles is glass fiber, nylon wire, polypropylene hair, polyethylene hair, polyvinyl chloride hair, tree palm, horsetail, wool, mane; the brush body diameter of twisted wire brush is corresponding 1.1 to 1.6 times the diameter of the airflow channel of the metal module, the hair position length of the twisted wire brush is equal to the airflow channel length of the metal module used by the charged twisted wire brush dust removal module; all the twisted wires in the charged twisted wire brush dust removal module The brush handle load of the brush is -3~-20kV, or the voltage is 3~20kV; the bristles of all the twisted wire brushes in the dust removal module of the charged twisted wire brush are coated with insulating paraffin oil or silicone oil or lubricating oil or edible oil as binding Dust agent, used to adhere and fix dust and prevent dust from escaping.

Compared with common dust removal devices, the size of the dust removal module obtained by this method is adjustable and has a good removal effect on fine dust. Since micropores or slits are avoided to trap particles, the module has the characteristics of small pressure drop and large air volume. In this module, the metal twisted wire in the center of the twisted wire brush and the inner wall of the metal airflow channel can be used as a dust collection surface. The insulating dust-binding agent loaded on the bristle surface of the twisted wire brush can fix the dust more effectively and greatly reduce the occurrence of secondary dust.

Description of drawings

Attached drawings 1 to 6 of the specification provide an intuitive explanation of the technical solution:

Figure 1 expresses the process of combining a single twisted wire brush into a twisted wire brush group through a wire or a guide rod, in which 1 is a single twisted wire brush, 2 is a wire or a guide rod, and 3 is a twisted wire brush group. Figure 1 is not correct for this technology The number of twisted wire brush groups in the scheme and the number of twisted wire brushes in a single brush group constitute restrictions. Under the condition of size permitting, the number of twisted wire brush groups and the number of twisted wire brushes in a single group of twisted wire brushes can be selected arbitrarily ;

Fig. 2A expresses the composition mode of the metal modules constituting the charged twisted wire brush dust removal module, wherein 4 is a metal module, 5 is an air flow channel, 6 and 12 are upper cover plates of the metal modules, 7 and 10 are side cover plates of the metal modules, 9 and 11 are the front and rear flower plates of the metal module respectively, and there are round holes for the airflow to enter, and 8 is the round pipe forming the airflow channel. The arrows in Fig. 2A are the combination directions of each part, and Fig. 2B is the assembled load. The metal module of the twisted wire brush dust removal module, Figure 2C is a side view of the metal module, Figure 2 does not constitute any restrictions on the arrangement of the airflow channels, the airflow channels can be arranged in a regular triangle as shown in Figure 2, or can be arranged in other ways arbitrarily, As long as the airflow channels are parallel;

Fig. 3 is the structural form of the charging module, wherein Fig. 3A is a rear view of the charging module, Fig. 3B is a front view of the charging module, Fig. 3C is an oblique view of the charging module, and Fig. 3D is a side view of the charging module 13 in Fig. 3 is a high-voltage power supply, 14 is the corona electrode of the charging module, 15 is the dust collecting plate of the charging module, 16 is the power supply connection line of the corona electrode group of the charging module, and 17 is the shell of the charging module and The ground connection line of the dust collecting pole is connected to the other pole of the high voltage power supply. Figure 3 does not limit the electrical properties of the corona pole of the charging module. The corona pole of the charging module can be connected to the positive pole of the high voltage power supply or to the high voltage Negative pole of the power supply;

Fig. 4 is a schematic diagram of stuffing the twisted wire brush group into the metal module constituting the charged twisted wire brush dust removal module, and charging the metal module and the twisted wire brush. Figure 4A is a front view of the charged twisted wire brush dust removal module, and Figure 4B is a side view of the charged twisted wire brush dust removal module; wherein 1 is a single twisted wire brush, 2 is a wire or guide rod, and 3 is a twisted wire brush group , 4 is the metal module, 18 is the power supply connection wire for charging the twisted wire brush group, 19 is the shell ground wire of the charged twisted wire brush dust removal module, this wire is connected to the other pole of the high-voltage power supply, and the figure 4 is not correct The chargeability of the wire brush group constitutes a limit, the twisted wire brush group can be connected to the positive pole of the high-voltage power supply or the negative pole of the high-voltage power supply;

Figure 5 is a schematic diagram of the combination of the charging module and the charged twisted wire brush dust removal module, wherein Figure 5A is a side view of the device when the twisted wire brush handle is upstream of the airflow, and Figure 5B is a twisted wire brush handle when the twisted wire brush handle is downstream of the airflow Fig. 5C is an oblique view of Fig. 5A, wherein, for the sake of clarity, Fig. 5C does not draw the bristles of the twisted wire brush, and Fig. 5 cannot confirm the electrical properties of the electrodes of the charging module and the charging twisted wire brush dust removal module. The choice constitutes a limitation. The corona electrode of the charging module can be charged with positive or negative charges, and the twisted wire brush of the charged twisted wire brush dust removal module can also be arbitrarily loaded with positive or negative charges. The arrow in Figure 5 is the airflow direction.

Fig. 6 is a dust removal mechanism diagram in a single airflow channel in the charged twisted wire brush dust removal module, wherein 19 is the gas channel hole wall of the metal module, 20 is the metal brush handle at the center of the twisted wire brush, and 21 is the bristle of the twisted wire brush , 22 is negatively charged dust particles, 23 is positively charged dust particles, where Fig. 6A shows the case where the handle of the twisted wire brush is positively charged and the metal module is negatively charged, at this time, the positively charged dust in the gas flows toward the metal The hole wall of the gas channel of the module moves, and the negatively charged dust in the gas moves to the metal brush handle in the center of the twisted wire brush; Figure 6B shows the situation where the brush handle of the twisted wire brush is negatively charged and the metal module is positively charged, at this time the gas The negatively charged dust in the gas moves to the gas channel hole wall of the metal module, while the positively charged dust in the gas moves to the metal brush handle in the center of the twisted wire brush. In addition, when the twisted-wire brush bristles are loaded with insulating dust-binding agent, the bristles have a significant adhesion and fixation effect on the dust in the gas, and this process is not expressed in Fig. 6.

detailed description

The purpose of the present invention is achieved through the following technical solutions: the high-efficiency dust removal module is composed of a charging module and a charging twisted wire brush dust removal module. During the dust removal process, the charging module is first used to charge the dust in the airflow, That is to make the dust-laden air flow pass through the electric field of the charging module with the corona electrode and the dust collecting electrode, so as to charge the dust in the air flow, and then let the air flow pass through the charged twisted wire brush dust removal module, and the charged twisted wire The brush dust removal module is a metal module with more than one airflow channel. The airflow channels are parallel to each other and the channels are cylindrical. The inside of the airflow channel is filled with twisted wire brushes. The brush handles of the twisted wire brushes in each air flow channel pass through wires or guide rods. Connect with each other and load voltage, and the outer wall of the metal module loads the opposite voltage to the handle of the twisted wire brush. The brush handle of the twisted wire brush and the inner wall of the airflow channel of the metal module are separated by the bristles of the twisted wire brush. The charge between the brush handle and the inner wall of the airflow channel of the metal module is opposite, so the positively or negatively charged particles in the airflow will move to the twisted wire brush handle or the inner wall of the airflow channel of the metal module on the principle of opposite sex attraction, and finally complete the dust removal. At the same time, the surface of the twisted wire brush bristles is coated with a layer of insulating dust-binding agent to adhere and fix the dust particles. When the dust removal module absorbs too much dust, the dust will be washed away by washing and the module will be regenerated. .

The feature of this air dust removal and purification device is that the corona electrode voltage of the charging module at the front end of the purifier is -3~-20kV, or 3~20kV, and the corona electrode is a round wire or a star wire with a nominal diameter of 0.1~1mm. , spiral wire, the pole spacing is 0.5 ~ 10cm, the dust collector is grounded; the material of the metal module used in the charged twisted wire brush dust removal module is carbon steel, stainless steel, iron, aluminum, copper or aluminum alloy; the charged twisted wire The diameter of the airflow channel in the metal module used by the brush dust removal module is 10mm to 100mm, and the length of the airflow channel is 5cm to 80cm; the two twisted wires in the center of the twisted wire brush are made of carbon steel, stainless steel, iron, aluminum, Copper or aluminum alloy, the material of twisted wire brush bristles is glass fiber, nylon wire, polypropylene hair, polyethylene hair, polyvinyl chloride hair, tree palm, horsetail, wool, mane; the brush body diameter of twisted wire brush is corresponding 1.1 to 1.6 times the diameter of the airflow channel of the metal module, the hair position length of the twisted wire brush is equal to the airflow channel length of the metal module used by the charged twisted wire brush dust removal module; all the twisted wires in the charged twisted wire brush dust removal module The brush handle load of the brush is -3~-20kV, or the voltage is 3~20kV; the bristles of all the twisted wire brushes in the dust removal module of the charged twisted wire brush are coated with insulating paraffin oil or silicone oil or lubricating oil or edible oil as binding Dust agent, used to adhere and fix dust and prevent dust from escaping.

List several specific examples below, to further understand the present invention:

Example 1:

Prepare a charging module with a flow channel size of 30cm×20cm, its pole spacing is 3cm, 10 round wires with a diameter of 0.1mm and a length of 20cm are used as corona wires, and the width of the dust collecting plate in the airflow direction is 3cm, the corona electrode is loaded with a positive voltage of 6000V, the dust collection plate is grounded, and a stainless steel charging module with a size of 30cm×20cm×10cm is connected. The airflow channel is a cylindrical channel with a length of 10cm and a hole diameter of 10mm. The distance between the centers of the three holes is 15mm, and the centers of every three adjacent holes are arranged in an equilateral triangle. The number of holes is 293. Take 293 twisted wire brushes with an outer diameter of 11mm. The bristles are made of polyethylene wire and the length of the hair is 10cm. The two twisted wires in the middle of each brush are copper wires, which are inserted into the holes of the stainless steel charging module, and one brush is inserted in each hole, and the handles of all the brushes are connected with conductive wires, and are loaded with a negative voltage of 4000V. The outer wall of the stainless steel charging module is grounded, and a layer of liquid paraffin is loaded on the bristles of the brush to obtain a gas purification module that can efficiently capture dust. Under the air velocity of 5m/s, the pressure drop is less than 80Pa, and the particle size is 2μm. Droplets, its interception efficiency exceeds 95%.

Example 2:

Prepare a charging module with a flow channel size of 20cm×20cm, its pole spacing is 2cm, use 10 star-shaped wires with a diameter of 1mm and a length of 20cm as corona wires, and the width of the dust collecting plate in the airflow direction is 3cm, the corona electrode is loaded with 2000V negative voltage, the dust collection plate is grounded, and a carbon steel charging module with a size of 20cm×20cm×5cm is connected. The airflow channel is a cylindrical hole with a length of 5cm and a hole diameter of 20mm. The distance between the center of the circle is 24mm, and the center of each three adjacent holes is arranged in an equilateral triangle, the number of holes is 68, and 68 twisted wire brushes are taken, the outer diameter is 32mm, the bristle material is polypropylene wire, and the length of the hair bit is 5cm, the two twisted wires in the middle of each brush are aluminum wires, inserted into the holes of the carbon steel charging module, one brush is inserted in each hole, the handles of all the brushes are connected with conductive wires, and the load is 3000V Voltage, while the outer wall of the carbon steel charging module is grounded, and a layer of silicone oil is loaded on the bristles of the brush to obtain a gas purification module that can efficiently capture dust. For droplets with a diameter of 2 μm, the interception efficiency exceeds 75%.

Example 3:

Prepare a charging module with flow channel size of 10cm×10cm, its pole spacing is 5cm, use 2 helical wires with a diameter of 0.5mm and a length of 10cm as corona wires, and the width of the dust collecting plate in the airflow direction is 4cm, the corona electrode is loaded with 20kV positive voltage, the dust collection plate is grounded, and a copper charging module with a size of 10cm×10cm×5cm is connected. The airflow channel is a cylindrical hole with a length of 5cm and a hole diameter of 15mm. The center of every three adjacent holes is arranged in an equilateral triangle. The number of holes is 27. Take a twisted wire brush with an outer diameter of 20mm. The bristle material is pig bristle, and the length of the hair is 5cm. The twisted wire is stainless steel wire, which is inserted into the hole of the copper charging module, and a brush is inserted in each hole. The outer wall is grounded, and a layer of paraffin oil is loaded on the bristles of the brush to obtain a gas purification module that can efficiently capture dust. At an air velocity of 10m/s, the pressure drop is less than 120Pa. For droplets with a particle size of 2μm, the intercepted The efficiency exceeds 88%.

Example 4:

Prepare a charging module with a flow channel size of 1m×1m, its pole spacing is 10cm, 10 round wires with a diameter of 0.2mm and a length of 1m are used as corona wires, and the width of the dust collecting plate in the airflow direction is 10cm, the corona pole is loaded with a negative voltage of 20kV, the dust collection plate is grounded, and an aluminum charging module with a size of 1m×1m×0.1m is connected. The airflow channel is a cylindrical hole with a length of 40cm and a hole diameter of 80mm. The distance between the centers of circles is 90mm, and the centers of every three adjacent holes are arranged in an equilateral triangle. The number of holes is 126. Take a twisted wire brush with an outer diameter of 88mm. The two twisted wires in the middle of the brush are aluminum alloy wires, which are inserted into the holes of the aluminum charging module, and one brush is inserted in each hole, and the handles of all the brushes are connected with conductive wires, and are loaded with a positive voltage of 20kV. The outer wall of the aluminum charging module is grounded, and a layer of silicone oil is loaded on the bristles of the brush to obtain a gas purification module that can efficiently dust. Under the air velocity of 10m/s, the pressure drop is less than 60Pa, and the particle size is 2μm. Droplets, its interception efficiency exceeds 88%.

Example 5:

Prepare a charging module with a flow channel size of 50cm×50cm, its pole spacing is 0.5cm, and 100 round wires with a diameter of 0.2mm and a length of 50cm are used as corona wires. The width of the dust collecting plate in the airflow direction 4cm, the corona pole load is 3000kV positive voltage, and the dust collection plate is grounded. Take a 50cm×50cm×20cm iron charging module, and its airflow channel is a cylindrical hole with a length of 20cm and a hole diameter of 30mm. The distance between the centers of the three holes is 36mm, and the centers of every three adjacent holes are arranged in an equilateral triangle. The number of holes is 180. A twisted wire brush with an outer diameter of 35mm is used. The two twisted wires in the middle of the brush are iron wires, which are inserted into the holes of the iron charging module, and one brush is inserted in each hole. The handles of all the brushes are connected with conductive wires and loaded with a negative voltage of 5kV. The outer wall of the mass-charger module is grounded, and a layer of silicone oil is loaded on the bristles of the brush to obtain a gas purification module that can efficiently remove dust. Under the air speed of 10m/s, the pressure drop is less than 80Pa, and the droplet with a particle size of 2μm , and its interception efficiency exceeds 90%.

Embodiment 6:

Prepare a charging module with a flow channel size of 30cm×20m, its pole spacing is 4cm, and 5 star-shaped wires with a diameter of 0.5mm and a length of 30cm are used as corona wires, and the width of the dust collecting plate in the airflow direction 5cm, the corona electrode is loaded with a positive voltage of 10kV, the dust collection plate is grounded, and an aluminum alloy charging module with a size of 30cm×20cm×10cm is connected. The airflow channel is a cylindrical hole with a length of 10cm and a hole diameter of 10mm. The distance between the centers of the circles is 15mm, and the centers of every three adjacent holes are arranged in an equilateral triangle. The number of holes is 293. Take 293 twisted wire brushes, the outer diameter of which is 11mm, and the bristle material is polyethylene wire. The two twisted wires in the middle of each brush are iron wires, which are inserted into the holes of the aluminum alloy charging module, and one brush is inserted in each hole, and the handles of all the brushes are connected with conductive wires, and the load is 10kV. Voltage, while the outer wall of the aluminum alloy charging module is grounded, and a layer of edible oil is loaded on the bristles of the brush to obtain a gas purification module that can efficiently remove dust. The interception efficiency of 2μm droplets is over 95%.

Embodiment 7:

Prepare a charging module with a flow channel size of 30cm×20m, its pole spacing is 2cm, and 10 star-shaped wires with a diameter of 0.1mm and a length of 30cm are used as corona wires, and the width of the dust collecting plate in the airflow direction 5cm, the corona electrode is loaded with 3kV negative voltage, and the dust collection plate is grounded. Take a stainless steel charging module with a size of 30cm×20cm×10cm. The airflow channel is a cylindrical hole with a length of 10cm and a hole diameter of 10mm. The distance between the centers of the three holes is 15mm, and the centers of the three adjacent holes are arranged in an equilateral triangle. The number of holes is 293. Take 293 twisted wire brushes with an outer diameter of 11mm. The bristle material is polyethylene wire, and the length of the hair is 10cm, the two twisted wires in the middle of each brush are stainless steel wires, inserted into the holes of the stainless steel charging module, one brush is inserted in each hole, the handles of all the brushes are connected with conductive wires, and the load is 3kV positive voltage , while the outer wall of the stainless steel charging module is grounded, and a layer of paraffin oil is loaded on the bristles of the brush to obtain a gas purification module that can efficiently remove dust. Droplets, its interception efficiency exceeds 95%.

Claims (9)

1. A method for preparing a high-efficiency dust removal module. This method is realized through the following technical scheme. The dust removal module is composed of a charged module and a charged twisted wire brush dust removal module. The dust in the air is charged, that is, the dust-laden air flows through the electric field of the charging module with the corona electrode and the dust collection electrode, so as to charge the dust in the air flow, and then the air flow passes through the charged twisted wire brush Dust removal module, charged twisted wire brush dust removal module is a metal module with more than one airflow channel. The airflow channels are parallel to each other, and the channels are cylindrical. The inside of the airflow channel is filled with twisted wire brushes. The brush handles are connected to each other through wires or guide rods, and are loaded with voltage. At the same time, the outer wall of the metal module is loaded with a voltage opposite to that of the twisted wire brush handle. Separated, due to the opposite charge between the twisted wire brush handle and the inner wall of the airflow channel of the metal module, the positively or negatively charged particles in the airflow will flow to the twisted wire brush handle or the airflow channel of the metal module according to the principle of opposite sex attraction. The inner wall moves to finally complete the dust removal. When the dust removal module absorbs too much dust, the dust will be washed away by washing and the module will be regenerated. 2. The preparation method of a high-efficiency dust removal module as claimed in claim 1, characterized in that: the corona electrode voltage of the charging module at the front end of the purifier is -3～-20kV, or 3～20kV, and the corona electrode voltage is Round wire, star wire, and helical wire with a nominal diameter of 0.1-1mm, the pole spacing is 0.5-10cm, and the dust collection pole is grounded. 3. The preparation method of a high-efficiency dedusting module as claimed in claim 1, characterized in that: the material of the metal module used in the charged twisted wire brush dedusting module is carbon steel, stainless steel, iron, aluminum, copper or aluminum alloy. 4. The preparation method of a high-efficiency dust removal module as claimed in claim 1, characterized in that: the diameter of the airflow channel in the metal module used in the charged twisted wire brush dust removal module is 10 mm to 100 mm, and the length of the air flow channel is 5 cm to 100 mm. 80cm. 5. The preparation method of a high-efficiency dust removal module as claimed in claim 1, wherein the metal material of the two twisted wires in the center of the twisted wire brush is iron, carbon steel, stainless steel, aluminum, aluminum alloy or copper . 6. The preparation method of a kind of high-efficiency dust removal module as claimed in claim 1, characterized in that: the material of the twisted wire brush bristles is glass fiber, nylon filament, polypropylene wool, polyethylene wool, polyvinyl chloride wool, tree palm , ponytail, wool, mane. 7. The preparation method of a high-efficiency dust removal module as claimed in claim 1, characterized in that: the diameter of the brush body of the twisted wire brush is 1.1 to 1.6 times the diameter of the airflow channel of the corresponding metal module, and the length of the hair position of the twisted wire brush The length of the airflow passage of the metal module used by the charged twisted wire brush dust removal module is equal to that of the air flow channel. 8. The preparation method of a high-efficiency dust removal module as claimed in claim 1, characterized in that: the brush handle load of all twisted wire brushes in the charged twisted wire brush dust removal module is -3～-20kV, or 3～20kV voltage . 9. the preparation method of a kind of high-efficiency dedusting module as claimed in claim 1 is characterized in that: the bristle surface of all twisted wire brushes in the charged twisted wire brush dust removal module is coated with insulating paraffin oil or silicone oil or lubricating oil or Edible oil is used as a dust binding agent to adhere and fix dust particles and prevent dust from escaping.