Energy-saving and environment-friendly turbulent electrostatic precipitator

Abstract

The application discloses an energy-saving and environment-friendly turbulent electrostatic precipitator, which comprises a shell and further comprises a turbulent component and a cleaning component, wherein the turbulent component comprises an air inlet and an air outlet arranged on the shell and communicated with the shell in a tangential direction, a dust-containing airflow enters the shell in a tangential direction along the air inlet to form a vortex turbulent flow, and finally is discharged through the air outlet.

Description

Technical Field

[0001] This invention relates to the field of dust collector technology, and in particular to an energy-saving and environmentally friendly turbulent electrostatic precipitator. Background Technology

[0002] Turbulent electrostatic precipitators couple turbulent flow fields with electrostatic fields. Dust-laden airflow is disturbed by turbulent structures, enhancing dust collision and agglomeration. Particles fully contact ions to complete charging, and are then adsorbed to the collecting electrode by Coulomb forces. After rapping, the dust falls into the ash hopper, completing separation. The electrostatic precipitator mainly includes a dust collection chamber, turbulence disturbance components, a discharge electrode, and a collecting electrode. Electrostatic precipitators balance low pressure drop with fine particle handling capacity, making them suitable for purifying flue gas and process tail gas from building materials, metallurgy, and small industrial furnaces. They can improve dust removal shortcomings under high flow velocity conditions; however, turbulence can exacerbate electrode erosion, requiring consideration of both flow field disturbance and secondary dust suppression. Chinese invention patent CN107051738B discloses a turbulent sub-high-speed wet high-efficiency electrostatic precipitator for eliminating coal dust and ash pollution. The precipitator includes a sub-high-speed wet electrostatic precipitator. The dust-laden gas inlet of the sub-high-speed wet electrostatic precipitator is connected to the outlet of a turbulent high-efficiency scrubber through a pipe. The lower part of the turbulent high-efficiency scrubber is provided with a turbulent high-energy nozzle connected to a turbulent circulation pump. The turbulent high-energy nozzle is arranged vertically upward so that the dust-laden gas entering the turbulent high-efficiency scrubber from the gas inlet collides violently with the counter-current sprayed liquid column sent by the turbulent circulation pump and sprayed out by the turbulent high-energy nozzle. The remaining dust-laden gas enters the anode dust collection mechanism of the sub-high-speed wet electrostatic precipitator for further dust removal. The aforementioned disclosed technology uses a separately set turbulent high-efficiency scrubber to generate turbulence, and the nozzles need to rely on a turbulent circulation pump to continuously deliver pressure. Both functional structures require independent drive sources, resulting in high overall power consumption of the equipment, which cannot meet the energy-saving and environmental protection development needs of factories. Therefore, how to provide an energy-saving and environmentally friendly turbulent electrostatic precipitator is a problem that urgently needs to be solved by those skilled in the art. Summary of the Invention

[0003] One objective of this invention is to provide an energy-saving and environmentally friendly turbulent electrostatic precipitator. This invention employs the following technical solution: an energy-saving and environmentally friendly turbulent electrostatic precipitator, comprising a housing, and further comprising: A turbulence component, comprising an air inlet and an air outlet disposed on a housing, both of which are tangentially connected to the housing. Dust-laden airflow enters the housing tangentially along the air inlet, forming a vortex turbulence, and is finally discharged through the air outlet. A cleaning component includes a screw rotatably connected to a housing along an axial direction. The screw's helical blades spiral upwards, and the direction of the helical blades is consistent with the direction of the vortex turbulence formed by the turbulence component. Multiple sets of through holes are axially penetrated on the outer wall of the screw's helical blades. The dust-laden airflow spirals upwards along the helical blades on the screw. A motor for driving the screw to rotate is fixedly installed on the top outer wall of the housing. When the screw rotates, the helical blades can scrape against the inner wall of the housing. The convection assembly includes a filter plate fixedly installed at the bottom of the screw. A cylinder is provided on the bottom inner wall of the housing. A piston is slidably connected in the cylinder. A transmission mechanism is provided between the piston and the screw to drive the piston to slide back and forth. The cylinder is connected to the housing. Washing liquid is injected into the bottom of the housing. When the screw rotates, the piston is driven to slide back and forth in the cylinder through the transmission mechanism, which transports the washing liquid at the bottom of the housing to the top of the housing. The washing liquid flows downward along the spiral blades of the screw and forms convection with the dust-laden airflow upward along the spiral blades. At the same time, the washing liquid drips through the through holes, forming a water curtain between the spiral blades. Electrostatic components are used to generate an electric field.

[0004] An energy-saving and environmentally friendly turbulent electrostatic precipitator according to an embodiment of the present invention: the motor is fixedly mounted on the outer wall of the insulating bracket, a small gear is mounted on the output shaft of the motor, and a large gear that meshes with the small gear is mounted on the outer wall of the top end of the screw.

[0005] An energy-saving and environmentally friendly turbulent electrostatic precipitator according to an embodiment of the present invention: a water pipe is installed at one end of the cylinder extending to the outside of the shell, the end of the water pipe away from the shell is connected to the bottom end of the shell, a drain outlet is provided at the bottom of the shell, and the bottom of the shell is funnel-shaped.

[0006] An energy-saving and environmentally friendly turbulent electrostatic precipitator according to an embodiment of the present invention: the cross-sectional profiles of the cylinder and the piston are both circular, the piston is in close contact with the inner wall of the cylinder, and a sealing ring is provided between the piston and the cylinder, and a one-way valve is installed on the outer wall of the piston.

[0007] An energy-saving and environmentally friendly turbulent electrostatic precipitator according to an embodiment of the present invention: the transmission mechanism includes a filter plate fixedly installed at the bottom end of a screw, a connecting rod rotatably connected to the outer wall of the filter plate, and the end of the connecting rod away from the filter plate rotatably connected to the outer wall of a piston.

[0008] An energy-saving and environmentally friendly turbulent electrostatic precipitator according to an embodiment of the present invention: the filter plate is located above the air inlet, the filter plate is closely attached to the inner wall of the housing, and a drain port aligned with the filter plate is provided on the outer wall of the housing.

[0009] An energy-saving and environmentally friendly turbulent electrostatic precipitator according to an embodiment of the present invention: a fan blade is installed on the outer wall of the bottom end of the screw, and the fan blade is located above the filter plate.

[0010] An energy-saving and environmentally friendly turbulent electrostatic precipitator according to an embodiment of the present invention: the electrostatic component includes multiple sets of anode plates and cathode columns. The anode plates are fixedly installed on the inner wall of the housing and are in contact with the spiral blades of the screw. An insulating support is provided on the top outer wall of the housing. The cathode columns are fixedly installed on the insulating support and extend axially into the screw. The cathode columns are connected to an external power source. The inner wall of the housing has a cylindrical outline, and the anode plates are arc-shaped plates.

[0011] An energy-saving and environmentally friendly turbulent electrostatic precipitator according to an embodiment of the present invention: an impeller is rotatably connected to the inner wall of the air inlet, the impeller is in close contact with the inner wall of the air inlet, and a brush is installed on the shaft of the impeller, the brush abutting against the filter plate.

[0012] An energy-saving and environmentally friendly turbulent electrostatic precipitator according to an embodiment of the present invention: the impeller is made of polyethylene plastic and the air inlet is made of metal.

[0013] The beneficial effects of this invention are: 1. This invention, through the design of a turbulence component, enables dust-laden airflow to enter the housing tangentially at high speed through the air inlet during operation. Relying on the cylindrical cavity structure of the housing, a stable circumferential vortex turbulence is formed along the inner wall, flowing from bottom to top in a spiral trajectory, and finally discharged from the top outlet. Unlike traditional equipment that requires a separate vortex power source, this equipment utilizes the kinetic energy of the dust-laden airflow itself to form a vortex working condition, eliminating the need for additional drive equipment, effectively reducing equipment operating energy consumption, and achieving energy saving and consumption reduction.

[0014] 2. This invention utilizes a cleaning component that vertically mounts a screw inside the housing. The rotation direction of its integrated continuous spiral blades aligns with the rotation direction of the intake vortex, effectively guiding and regulating the rising airflow. This solves problems such as airflow diffusion, turbulence, and crossflow, improving airflow stability and enhancing the cyclone dust removal effect. Simultaneously, as the screw rotates continuously, the edges of the spiral blades continuously scrape against the anode plate surface, promptly removing accumulated and caked dust. This prevents plate blockage and reduced dust removal efficiency, achieving fully automatic self-cleaning without manual maintenance, ensuring long-term stable operation. The scraped-off dust settles to the bottom of the housing under the pushing action of the blades and airflow convection, effectively preventing secondary dust re-suspension and pollution.

[0015] 3. The present invention, through the convection component, allows the washing liquid to be delivered to the top and flow down the spiral blades, forming a counter-current convection with the dust-laden airflow from bottom to top, prolonging the gas-liquid contact time and improving the dust washing effect. At the same time, the spiral blades have multiple sets of circumferentially evenly distributed through holes in the axial direction, through which the washing liquid drips layer by layer, forming a multi-layer uniform water curtain between the blades, intercepting ultrafine dust in all directions, suppressing secondary dust, completing terminal wet purification, and greatly improving the cleanliness of the exhaust. Attached Figure Description

[0016] Figure 1 This is a three-dimensional schematic diagram of the overall structure proposed in this invention; Figure 2 This is a three-dimensional sectional view of the overall structure proposed in this invention. Figure 1 ; Figure 3 This is a three-dimensional sectional view of the overall structure proposed in this invention. Figure 2 ; Figure 4 This is a three-dimensional schematic diagram of the anode plate proposed in this invention; Figure 5 This is a three-dimensional schematic diagram of the cathode column proposed in this invention; Figure 6 This is a three-dimensional schematic diagram of the screw proposed in this invention; Figure 7 This is a three-dimensional schematic diagram of the transmission mechanism proposed in this invention; Figure 8 This is a three-dimensional schematic diagram of the impeller proposed in this invention.

[0017] In the diagram: 1. Shell; 11. Air inlet; 12. Air outlet; 13. Drain outlet; 14. Sewage outlet; 15. Anode plate; 16. Insulating support; 17. Cathode column; 18. Cylinder body; 19. Water pipe; 2. Screw; 21. Through hole; 22. Large gear; 23. Fan blade; 24. Filter plate; 3. Motor; 31. Small gear; 4. Piston; 41. Check valve; 42. Connecting rod; 5. Impeller; 51. Brush. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0019] First embodiment: See Figures 1 to 7 As shown, an energy-saving and environmentally friendly turbulent electrostatic precipitator includes a housing 1, and further includes: The turbulence component includes an air inlet 11 and an air outlet 12 disposed on the housing 1. Both the air inlet 11 and the air outlet 12 are tangentially connected to the housing 1. The dust-laden airflow enters the housing 1 tangentially along the air inlet 11, forming a vortex turbulence, and is finally discharged through the air outlet 12. The cleaning component includes a screw 2 rotatably connected to the housing 1 along the axial direction. The spiral blades of the screw 2 spiral upward, and the spiral direction of the spiral blades is consistent with the spiral direction of the vortex turbulence formed by the turbulence component. Multiple sets of through holes 21 are axially opened on the outer wall of the spiral blades of the screw 2. The dust-laden airflow spirals upward along the spiral blades on the screw 2. A motor 3 for driving the screw 2 to rotate is fixedly installed on the top outer wall of the housing 1. When the screw 2 rotates, the spiral blades can scrape the inner wall of the housing 1. The electrostatic assembly includes multiple sets of anode plates 15 and cathode columns 17. The anode plates 15 are fixedly installed on the inner wall of the housing 1 and are attached to the helical blades of the screw 2. An insulating support 16 is provided on the top outer wall of the housing 1. The cathode columns 17 are fixedly installed on the insulating support 16 and extend axially into the screw 2. The cathode columns 17 are connected to an external power source to form an electric field. The inner wall of the housing 1 has a cylindrical profile, and the anode plates 15 are arc-shaped plates. The motor 3 is fixedly mounted on the outer wall of the insulating bracket 16. A small gear 31 is mounted on the output shaft of the motor 3, and a large gear 22 that meshes with the small gear 31 is mounted on the outer wall of the top end of the screw 2.

[0020] It should be noted that the anode plate 15 is grounded and serves as the anode of the electrostatic field. The insulating support 16 is made of high-strength insulating ceramic material and is fixed to the top outer wall of the housing 1. The cathode column 17 is vertically fixed at the center of the insulating support 16, with its lower end extending axially into the internal cavity of the screw 2. It is coaxially arranged with the screw 2 and does not contact it. The cathode column 17 is externally connected to a high-voltage DC electrostatic power supply. The positive terminal of the power supply is grounded and electrically connected to the anode plate 15, and the negative terminal is electrically connected to the cathode column 17. After energization, a high-voltage electrostatic field is formed between the cathode column 17 and the anode plate 15. The cathode generates corona discharge, causing the dust particles flowing through the electric field to become negatively charged. The charged particles migrate towards the anode plate 15 under the action of the electric field force and are adsorbed, thus realizing electrostatic dust removal.

[0021] During operation, the dust-laden airflow enters the housing 1 at high speed tangentially along the air inlet 11, forming a circumferentially rotating vortex turbulence along the inner wall of the cylindrical cavity. The airflow flows from bottom to top in a spiral path and is finally discharged from the air outlet 12. Compared with the existing technology that requires an independent turbulence power source, this invention relies on the kinetic energy of the airflow itself to form a vortex, eliminating the need for additional vortex power equipment and achieving energy saving and consumption reduction.

[0022] After entering the housing 1, the dust-laden airflow rises along the screw 2. The spiral blades of the screw 2 extend upward in a continuous spiral. The direction of the spiral blades is consistent with the direction of the vortex formed by the turbulence component, which can guide and enhance the rising airflow and prevent the airflow from spreading and becoming turbulent. The outer edge of the spiral blades is in contact with the inner wall of the housing 1. When working, the motor 3 is started, and the motor 3 drives the pinion 31 to rotate. Under the meshing action of the pinion 31 and the large gear 22, the large gear 22 drives the screw 2 to rotate slowly. When the screw 2 rotates, the edge of the blades can scrape off the dust attached to the anode plate 15, achieving a self-cleaning effect. In conjunction with the convection component, the dust is flushed to the bottom of the housing 1.

[0023] It should be noted that motor 3 is a three-phase asynchronous motor with insulation class F and protection class IP55, which is suitable for dusty and humid dust removal conditions; after the gear pair reduction, the working speed of screw 2 shall not exceed 60 revolutions per minute, so as to balance the self-cleaning effect and airflow stability.

[0024] The convection assembly includes a filter plate 24 fixedly installed at the bottom of the screw 2. A cylinder 18 is provided on the bottom inner wall of the housing 1. A piston 4 is slidably connected inside the cylinder 18. A transmission mechanism is provided between the piston 4 and the screw 2 to drive the piston 4 to slide back and forth. The cylinder 18 is connected to the housing 1. Washing liquid is injected into the bottom of the housing 1. When the screw 2 rotates, the piston 4 is driven to slide back and forth inside the cylinder 18 through the transmission mechanism, which transports the washing liquid at the bottom of the housing 1 to the top of the housing 1. The washing liquid flows downward along the spiral blades of the screw 2 and forms convection with the dust-laden airflow upward along the spiral blades. At the same time, the washing liquid drips through the through hole 21, forming a water curtain between the spiral blades. A water pipe 19 is installed at one end of the cylinder body 18 extending to the outside of the housing 1. The end of the water pipe 19 away from the housing 1 is connected to the bottom end of the housing 1. A drain port 13 is provided at the bottom of the housing 1. The bottom of the housing 1 is funnel-shaped. The cross-sectional profiles of the cylinder body 18 and the piston 4 are both circular. The piston 4 is in close contact with the inner wall of the cylinder body 18, and a sealing ring is provided between the piston 4 and the cylinder body 18. A one-way valve 41 is installed on the outer wall of the piston 4. The transmission mechanism includes a filter plate 24 fixedly installed at the bottom of the screw 2. A connecting rod 42 is rotatably connected to the outer wall of the filter plate 24. The end of the connecting rod 42 away from the filter plate 24 is rotatably connected to the outer wall of the piston 4. The filter plate 24 is located above the air inlet 11. The filter plate 24 is in close contact with the inner wall of the housing 1. A drain port 14 aligned with the filter plate 24 is opened on the outer wall of the housing 1. A fan blade 23 is installed on the outer wall of the bottom end of the screw 2, and the fan blade 23 is located above the filter plate 24.

[0025] It should be noted that the filter plate 24 is a circular perforated plate structure, which is fixedly installed at the bottom end of the screw 2 and rotates synchronously with the screw 2; the outer edge of the filter plate 24 is close to the inner wall of the housing 1 and is located above the air inlet 11, which can intercept large particles of dust and scraped dirt, and prevent impurities from entering the washing liquid below and causing circulation pollution. A drain port 14 is provided on the side wall of the housing 1, which is aligned with the upper surface of the filter plate 24, for periodically discharging the filter residue trapped by the filter plate 24.

[0026] During the rotation of the screw 2, a fan blade 23 is fixedly installed on the outer wall of the bottom end of the screw 2. The fan blade 23 is located above the filter plate 24 and rotates synchronously with the screw 2. It can help enhance the swirling intensity of the airflow and throw large dust particles in the airflow toward the side wall, thereby enhancing the primary centrifugal dust removal effect.

[0027] Furthermore, the transmission mechanism converts the rotational motion of the screw 2 into the reciprocating linear motion of the piston 4, including the connecting rod 42; one end of the connecting rod 42 is rotatably connected to the eccentric position on the lower surface of the filter plate 24, and the other end is rotatably connected to the end side wall of the piston 4, together forming a crank-slider mechanism. When the screw 2 drives the filter plate 24 to rotate, the connecting rod 42 pulls the piston 4 to slide back and forth along the cylinder 18 axis, continuously pumping the washing liquid at the bottom of the housing 1 along the water pipe 19 to the upper part of the housing 1, realizing water circulation.

[0028] After the washing liquid is pumped to the top by the piston 4, it flows from top to bottom along the upper surface of the spiral blade, forming a counter-current with the dust-laden airflow from bottom to top, prolonging the gas-liquid contact time. Furthermore, since multiple sets of through holes 21 are uniformly opened along the axial direction on the spiral blade, and each set of through holes 21 is spaced apart along the circumference of the blade, the washing liquid is allowed to flow through and drip from top to bottom. The washing liquid drips layer by layer through the through holes 21, forming a multi-layer water curtain between adjacent spiral blades, further capturing fine particulate dust and suppressing secondary dust.

[0029] Second embodiment: like Figure 8 As shown, an impeller 5 is rotatably connected to the inner wall of the air inlet 11. The impeller 5 is in close contact with the inner wall of the air inlet 11. A brush 51 is installed on the shaft of the impeller 5. The brush 51 abuts against the filter plate 24. The impeller 5 is made of polyethylene plastic, and the air inlet 11 is made of metal.

[0030] It should be noted that, based on the first embodiment, the second embodiment adds a pre-charged and self-cleaning structure for the filter plate 24 at the air inlet 11, while the rest of the structure is completely consistent with the first embodiment.

[0031] After the dust-laden airflow enters the air inlet 11, it impacts the impeller 5, which rotates at high speed. The polyethylene impeller 5 generates negative static electricity through friction with the inner wall of the metal air inlet 11. The dust particles that flow through the impeller 5 are pre-charged with negative charges after contacting the impeller 5.

[0032] After the pre-charged dust enters the subsequent electrostatic field, it experiences a stronger electric field force and migrates towards the anode plate 15 at a faster speed, which can further improve the collection efficiency of fine dust. At the same time, when the impeller 5 rotates, it drives the brush 51 at the end of the shaft to rotate synchronously. The brush 51 continuously sweeps along the upper surface of the filter plate 24, effectively preventing the pores of the filter plate 24 from being blocked by dust, ensuring the air permeability and filtration effect of the filter plate 24. This process is entirely driven by the kinetic energy of the incoming airflow and does not require additional power consumption, further improving the energy efficiency and operational stability of the equipment.

[0033] Working principle: When the equipment is working, the dust-laden airflow enters the housing 1 tangentially at high speed through the air inlet 11. Relying on the cylindrical cavity structure of the housing 1, a stable circumferential vortex turbulence is formed along the inner wall, flowing from bottom to top in a spiral trajectory, and finally discharged from the top air outlet 12. Unlike traditional equipment that requires a separate vortex power source, this equipment uses the kinetic energy of the dust-laden airflow itself to form a vortex working condition, eliminating the need for additional drive equipment, effectively reducing the energy consumption of the equipment and achieving energy saving and consumption reduction.

[0034] Inside the housing 1, a screw 2 is vertically mounted. The rotation direction of its integrated continuous spiral blades is consistent with that of the intake vortex, which can guide and regulate the rising airflow, effectively solving problems such as airflow diffusion, turbulence, and crossflow, improving airflow stability, and enhancing the vortex dust removal effect. The outer edge of the spiral blades is tightly fitted to the inner wall of the housing 1 to prevent airflow from escaping through gaps and ensure that the airflow rises in an orderly manner along a preset trajectory. A motor 3 is located at the bottom of the equipment. A small gear 31 is fixed at the output end of the motor 3, and a large gear 22 is fixed at the top of the screw 2. The two mesh to form a transmission structure. The motor 3 drives the small gear 31 to rotate, which in turn drives the large gear 22 and the screw 2 to rotate at low speed, providing the core power for the equipment's self-cleaning, airflow enhancement, and water circulation systems.

[0035] The fan blade 23, located above the filter plate 24, is fixedly installed on the outer wall of the bottom end of the screw 2. It can rotate synchronously with the screw 2. The fan blade 23 can further enhance the swirling intensity of the airflow inside the shell 1 and improve the centrifugal effect. At the same time, it throws large dust particles in the airflow to the side wall of the shell 1 through centrifugal force, so that the dust settles to the bottom under the action of centrifugal force and gravity, completing the primary centrifugal dust removal, filtering most of the coarse dust particles, and reducing the operating load of subsequent dust removal processes.

[0036] The equipment has a built-in high-voltage electrostatic dust removal mechanism. Anode plates 15 are arranged on the inner wall of the shell 1, and multiple sets of cathode columns 17 are arranged vertically inside the cavity. The cathode columns 17 are connected to a high-voltage DC electrostatic power supply. The positive terminal of the power supply is grounded and electrically connected to the anode plates 15, and the negative terminal is connected to the cathode columns 17. After the equipment is powered on, a uniform high-voltage electrostatic field is formed between the cathode columns 17 and the anode plates 15. The cathode columns 17 generate corona discharge, which causes the flowing fine dust particles to carry negative charges. The charged dust particles migrate directionally to the anode plates 15 under the action of the electric field force and are adsorbed, thus efficiently capturing fine dust and completing the two-stage electrostatic dust removal operation.

[0037] During the continuous rotation of screw 2, the edge of the spiral blade can continuously scrape against the surface of anode plate 15, promptly removing the dust accumulated and caking on the surface of the plate, avoiding plate blockage that leads to a decrease in dust removal efficiency, realizing fully automatic self-cleaning of the equipment, eliminating the need for manual shutdown maintenance, ensuring long-term stable operation of the equipment, and the scraped dust settles to the bottom of the shell 1 under the action of blade pushing and airflow convection, effectively avoiding secondary suspension pollution of dust.

[0038] The equipment achieves automatic circulation of washing liquid through a crank-slider transmission mechanism, which converts the rotational motion of screw 2 into the reciprocating linear motion of piston 4. One end of connecting rod 42 is eccentrically connected to the lower surface of filter plate 24, and the other end is connected to the end side wall of piston 4. When screw 2 drives filter plate 24 to rotate, connecting rod 42 pulls piston 4 to slide back and forth along cylinder 18 axially. The washing liquid at the bottom of housing 1 is transported to the upper part of housing 1 through water pipe 19 by pump suction. There is no need to configure a separate water pump, which simplifies the equipment structure and reduces energy consumption.

[0039] After the washing liquid is delivered to the top, it flows from top to bottom along the spiral blades, forming a counter-current with the dust-laden airflow from bottom to top. This prolongs the gas-liquid contact time and improves the dust washing effect. At the same time, the spiral blades have multiple sets of circumferentially evenly distributed through holes 21 in the axial direction. The washing liquid drips through the through holes 21 layer by layer, forming a multi-layer uniform water curtain between the blades. This intercepts ultrafine dust in all directions, suppresses secondary dust generation, completes terminal wet purification, and significantly improves the cleanliness of the exhaust gas.

[0040] The second embodiment of this equipment, based on the first embodiment, adds a pre-charged and self-cleaning structure for the filter plate 24 at the air inlet 11. The remaining structural principles remain the same. The dust-laden airflow impacts the impeller 5 inside the air inlet 11 at high speed, causing the impeller 5 to rotate at high speed. The polyethylene impeller 5 generates negative static electricity through friction with the inner wall of the metal air inlet 11, pre-charging the flowing dust. After the pre-charged dust enters the electrostatic field, it is more strongly affected by the electric field force and migrates faster, significantly improving the collection efficiency of fine dust. At the same time, the impeller 5 drives the brush 51 at the end of the rotating shaft to rotate synchronously, continuously sweeping and cleaning the dust clogging the pores on the surface of the filter plate 24, ensuring the filtration performance and air permeability of the filter plate 24. This structure is entirely driven by the kinetic energy of the incoming airflow and requires no additional power consumption, further improving the dust removal accuracy and energy-saving stability of the equipment.

Claims

1. An energy-saving and environmentally friendly turbulent electrostatic precipitator, comprising a housing (1), characterized in that, Also includes: The turbulence component includes an air inlet (11) and an air outlet (12) disposed on the housing (1). The air inlet (11) and the air outlet (12) are tangentially connected to the housing (1). The dust-laden airflow enters the housing (1) tangentially along the air inlet (11), forming a vortex turbulence, and finally exits through the air outlet (12). The cleaning component includes a screw (2) rotatably connected to the housing (1) along the axial direction. The spiral blades of the screw (2) spiral upward, and the spiral direction of the spiral blades is consistent with the spiral direction of the vortex turbulence formed by the turbulence component. Multiple sets of through holes (21) are axially opened on the outer wall of the spiral blades of the screw (2). The dust-laden airflow spirals upward along the spiral blades on the screw (2). A motor (3) for driving the screw (2) to rotate is fixedly installed on the top outer wall of the housing (1). When the screw (2) rotates, the spiral blades can scrape the inner wall of the housing (1). The convection assembly includes a filter plate (24) fixedly installed at the bottom of the screw (2). A cylinder (18) is provided on the bottom inner wall of the housing (1). A piston (4) is slidably connected in the cylinder (18). A transmission mechanism is provided between the piston (4) and the screw (2) to drive the piston (4) to slide back and forth. The cylinder (18) is connected to the housing (1). Washing liquid is injected into the bottom of the housing (1). When the screw (2) rotates, the piston (4) is driven to slide back and forth in the cylinder (18) through the transmission mechanism, and the washing liquid at the bottom of the housing (1) is transported to the top of the housing (1). The washing liquid flows downward along the spiral blades of the screw (2) and forms convection with the dust-laden airflow upward along the spiral blades. At the same time, the washing liquid drips through the through hole (21) and forms a water curtain between the spiral blades. Electrostatic components are used to generate an electric field.

2. The energy-saving and environmentally friendly turbulent electrostatic precipitator according to claim 1, characterized in that: The motor (3) is fixedly installed on the outer wall of the insulating bracket (16). A small gear (31) is installed on the output shaft of the motor (3), and a large gear (22) that meshes with the small gear (31) is installed on the outer wall of the top end of the screw (2).

3. The energy-saving and environmentally friendly turbulent electrostatic precipitator according to claim 1, characterized in that: A water pipe (19) is installed at one end of the cylinder (18) extending to the outside of the shell (1). The end of the water pipe (19) away from the shell (1) is connected to the bottom end of the shell (1). A drain outlet (13) is provided at the bottom of the shell (1). The bottom of the shell (1) is funnel-shaped.

4. The energy-saving and environmentally friendly turbulent electrostatic precipitator according to claim 3, characterized in that: The cross-sectional profiles of the cylinder (18) and the piston (4) are both circular. The piston (4) is in close contact with the inner wall of the cylinder (18), and a sealing ring is provided between the piston (4) and the cylinder (18). A one-way valve (41) is installed on the outer wall of the piston (4).

5. The energy-saving and environmentally friendly turbulent electrostatic precipitator according to claim 1, characterized in that: The transmission mechanism includes a filter plate (24) fixedly installed at the bottom of the screw (2), and a connecting rod (42) rotatably connected to the outer wall of the filter plate (24). The end of the connecting rod (42) away from the filter plate (24) is rotatably connected to the outer wall of the piston (4).

6. The energy-saving and environmentally friendly turbulent electrostatic precipitator according to claim 5, characterized in that: The filter plate (24) is located above the air inlet (11). The filter plate (24) is in close contact with the inner wall of the housing (1). The outer wall of the housing (1) is provided with a drain port (14) aligned with the filter plate (24).

7. The energy-saving and environmentally friendly turbulent electrostatic precipitator according to claim 1, characterized in that: A fan blade (23) is installed on the outer wall of the bottom end of the screw (2), and the fan blade (23) is located above the filter plate (24).

8. The energy-saving and environmentally friendly turbulent electrostatic precipitator according to claim 1, characterized in that: The electrostatic assembly includes multiple sets of anode plates (15) and cathode columns (17). The anode plates (15) are fixedly installed on the inner wall of the housing (1) and are attached to the helical blades of the screw (2). An insulating support (16) is provided on the top outer wall of the housing (1). The cathode columns (17) are fixedly installed on the insulating support (16) and extend into the screw (2) axially. The cathode columns (17) are connected to an external power source. The inner wall of the housing (1) has a cylindrical outline, and the anode plates (15) are arc-shaped plates.

9. The energy-saving and environmentally friendly turbulent electrostatic precipitator according to claim 1, characterized in that: An impeller (5) is rotatably connected to the inner wall of the air inlet (11). The impeller (5) is in close contact with the inner wall of the air inlet (11). A brush (51) is installed on the shaft of the impeller (5). The brush (51) abuts against the filter plate (24).

10. The energy-saving and environmentally friendly turbulent electrostatic precipitator according to claim 9, characterized in that: The impeller (5) is made of polyethylene plastic, and the air inlet (11) is made of metal.

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