Supergravity dust removal device

Abstract

The invention discloses a supergravity dust removal device, and relates to the technical field of dust removal devices.The supergravity dust removal device comprises a cavity, a gas inlet assembly, an electrostatic dust removal module, a spraying module and an auxiliary dust discharge module, and the gas module regulates and controls the flowing direction and speed of dust-containing gas through a rotating guide vane set; the electrostatic dust collection module comprises a supergravity rotor, a packing layer and an electrostatic polar plate are arranged in the supergravity rotor, dust particles are charged and adsorbed to the packing layer through an electrostatic field, and meanwhile, the supergravity rotor rotates at a high speed to throw uncharged dust particles to the outer wall of the supergravity rotor; the spraying module is arranged above the supergravity rotor and sprays an atomized water curtain to wet and adhere dust particles and clean the interior of the supergravity rotor; the auxiliary ash discharging module comprises a pulse type nitrogen pressurizing device, high-humidity dust is prevented from caking, and the ash discharging continuity is improved. According to the technical scheme provided by the invention, the dust discharging effect of the supergravity dust removal device is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of dust removal devices, and particularly to a high-gravity dust removal device. Background Art

[0002] In the technical field of environmental protection equipment, especially in the treatment of dust under high-temperature, high-humidity, high-viscosity, flammable and explosive working conditions, traditional dust removal equipment such as bag filters has problems such as low efficiency, high energy consumption, and frequent filter material replacement, and it is difficult to meet the requirements of modern industry for efficient, stable, and economical dust removal solutions. In a high-temperature environment, the filter bags of traditional bag filters are easily damaged, and in the case of high-viscosity dust working conditions, dust agglomerates on the surface of the filter bags, resulting in an increase in filtration resistance, a decrease in dust removal efficiency, and frequent filter bag replacement, increasing the operating cost and maintenance workload.

[0003] As a new dust removal method, high-gravity dust removal technology simulates the enhanced effect of the earth's gravity field and uses the centrifugal force generated by rotation to separate dust particles in the air flow, having advantages such as high separation efficiency and small equipment volume. However, there are still some deficiencies in the existing high-gravity dust removal technology. For example, high-viscosity dust is prone to accumulate inside the equipment, causing blockage and affecting the continuous operation of the equipment. Summary of the Invention

[0004] The main object of the present invention is to propose a high-gravity dust removal device, aiming to improve the dust discharge effect of the high-gravity dust removal device.

[0005] To achieve the above object, the high-gravity dust removal device proposed by the present invention includes: A cavity, including an air inlet provided on the side wall of the cavity and facing the tangential direction of the side wall of the cavity, an exhaust port provided on the top wall of the cavity, and a dust discharge port provided on the bottom wall of the cavity; An air inlet module, which is provided at the air inlet for introducing dust-containing gas and regulating the flow direction and speed of the dust-containing gas through a rotating vane group; An electrostatic dust removal module, including a high-gravity rotor provided in the middle of the cavity. A packing layer is provided inside the high-gravity rotor, and static electrode plates are provided in the packing layer. The static electrode plates generate an electrostatic field to charge dust particles, so that the dust particles are adsorbed on the packing layer. The high-gravity rotor rotates at a high speed to throw the uncharged dust particles in the dust-containing gas towards the outer wall of the rotor, and gas-solid separation is achieved under the synergistic action of the electric field force and the centrifugal force; A spraying module, which is provided on the inner wall of the cavity and installed above the high-gravity rotor, for spraying an atomized water curtain to moisten and adhere to dust particles, and at the same time clean the inside of the high-gravity rotor; An auxiliary ash discharge module, which is provided at the dust discharge port and includes a pulse-type nitrogen pressurizing device for preventing high-humidity dust from caking and improving the continuity of ash discharge.

[0006] In one embodiment, the nitrogen pressurizing device includes a nitrogen cylinder, a pressurizing device, a pulse control valve, and a jetting system connected in sequence. The jetting system includes a plurality of nitrogen nozzles.

[0007] In one embodiment, the auxiliary ash discharge module includes an ash hopper. The ash hopper is provided on the bottom wall of the cavity and is communicated with the dust discharge port. A plurality of the nitrogen nozzles are arranged in a ring at the bottom of the ash hopper, and the nitrogen nozzles are arranged towards the middle or top of the ash hopper.

[0008] In one embodiment, the auxiliary ash discharge module further includes a level gauge, an electric ash discharge valve, and a dust conveying pipe provided on the ash hopper. The level gauge monitors the dust level in the ash hopper in real time. The electric ash discharge valve is provided on the bottom wall of the ash hopper, and dust can accumulate on the valve of the electric ash discharge valve. The dust conveying pipe is communicated through the electric ash discharge valve.

[0009] In one embodiment, the ash hopper is provided directly below the supergravity rotor. The spraying module further includes a liquid collecting tank. The liquid collecting tank surrounds the bottom wall of the cavity. A superhydrophobic coating is provided on the inner wall of the ash hopper, and a hydrophilic coating is provided on the inner wall of the liquid collecting tank.

[0010] In one embodiment, a plurality of corrugated meshes are provided in the packing layer. The corrugated meshes are made of stainless steel. At least one corrugated mesh is provided on opposite sides of the static electrode plate, and the corrugated mesh is grounded.

[0011] In one embodiment, the static electrode plate is configured as a corrugated plate structure.

[0012] In one embodiment, a conductive coating and a catalytic coating are provided on the surfaces of the corrugated mesh and the static electrode plate.

[0013] In one embodiment, a plurality of static electrode plates are provided and are arranged at intervals in the radial direction of the supergravity rotor.

[0014] In one embodiment, the structure of the cavity is configured as a cylinder, and the structure of the supergravity rotor in the cavity is configured as a sphere, and the diameter of the structure of the supergravity rotor in the cavity can match the diameter of the cavity.

[0015] In one embodiment, the spraying module includes a water pump, a water delivery pipe, and a spray head connected in sequence. The spray head is provided on the inner wall of the cavity, and a plurality of spray heads are provided and are evenly distributed in a ring above the supergravity rotor.

[0016] In one embodiment, the spraying module is further provided with a liquid collecting tank, a circulating water tank and a filter. The liquid collecting tank collects the spraying liquid thrown out by the high gravity rotor. The liquid collecting tank is communicated with the circulating water tank. The filter is arranged between the liquid collecting tank and the circulating water tank. The circulating water tank is communicated with the water delivery pipe through the water pump.

[0017] In one embodiment, the spraying module further includes an electrocoagulation assembly. The electrocoagulation assembly is arranged between the liquid collecting tank and the circulating water tank and is communicated with the filter to remove the charged dust colloid in the spraying liquid.

[0018] In one embodiment, the high gravity dust removal device further includes an intelligent control system. The intelligent control system includes a sensor group and an electric control component electrically connected to the sensor group. The sensor group includes a dust concentration sensor, a temperature sensor, a humidity sensor arranged in the cavity, and an electrostatic field intensity sensor arranged near the high gravity rotor. The electric control component is electrically connected to the air inlet module, the electrostatic dust removal module, the spraying module and the auxiliary ash discharging module.

[0019] In the technical solution of the present invention, the dust-containing gas forms a swirling flow field through the tangential air inlet method. Coarser dust particles can be pre-separated under the action of centrifugal force, reducing the subsequent electrostatic dust removal load. The rotating guide vane group can adjust the rotating direction and rotating speed of the blades to adapt to the dust-containing gas with different dust concentrations. The centrifugal force brought by the high-speed rotation of the high gravity rotor and the electrostatic field brought by the static electrode plate can cooperate with each other. The centrifugal force can be used to separate larger dust particles, and the electrostatic field is used to adsorb smaller dust particles, improving the dust removal effect on the dust-containing gas. The spraying module sprays atomized droplets onto the high gravity rotor, increasing the moisture content of the dust adhering to the high gravity rotor, improving the adhesion performance of the dust, preventing the secondary flying of the dust, and at the same time, the high gravity rotor can be cleaned by increasing the sprayed water volume. The auxiliary ash discharging module can make the pressurized nitrogen gas flow impact the ash discharging port, shattering or vibrating the agglomerated high humidity dust inside or near the exhaust port, improving the continuity of dust discharge, and filling the gas inside and near the dust discharging port with nitrogen. Through the inertness of nitrogen, the hazard of dust explosion is reduced. Description of the Drawings

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on the structures shown in these drawings.

[0021] Figure 1Schematic structural diagram of an embodiment of the supergravity dust removal device provided by the present invention.

[0022] Explanation of the reference numerals in the drawings: 100, cavity; 11, air inlet; 12, exhaust port; 13, dust discharge port; 200, electrostatic dust removal module; 21, supergravity rotor; 211, packing layer; 212, static electrode plate; 213, corrugated mesh; 300, spray module; 31, liquid collection tank; 32, water pump; 33, water delivery pipe; 34, nozzle; 35, circulation water tank; 36, filter; 37, electrocoagulation component; 400, auxiliary ash discharge module; 41, ash hopper; 42, level gauge; 43, electric ash discharge valve; 44, dust conveying pipe; 45, nitrogen nozzle.

[0023] The realization of the purpose, functional features and advantages of the present invention will be further described with reference to the embodiments and the accompanying drawings. Detailed implementation manners

[0024] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0025] It should be noted that if there are directional indications (such as up, down, left, right, front, back...) in the embodiments of the present invention, the directional indications are only used to explain the relative positional relationship and movement conditions between components in a specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0026] In addition, if there are descriptions such as "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of the features. In addition, if "and / or" or "and / or" appears throughout the text, its meaning includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or a solution that satisfies both A and B at the same time. In addition, the technical solutions between the embodiments can be combined with each other, but it must be based on the fact that those of ordinary skill in the art can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the protection scope required by the present invention.

[0027] The present invention provides a high gravity dust removal device.

[0028] Please refer to Figure 1 , in an embodiment of the present invention, the high gravity dust removal device includes: A cavity 100, including an air inlet 11 provided on the side wall of the cavity 100 and facing the tangential direction of the side wall of the cavity 100, an exhaust port 12 provided on the top wall of the cavity 100, and a dust discharge port 13 provided on the bottom wall of the cavity 100; An air inlet module, which is arranged at the air inlet 11 and is used to introduce the dusty gas and regulate the flow direction and speed of the dusty gas through a rotating guide vane group; An electrostatic dust removal module 200, which includes a high gravity rotor 21 arranged in the middle of the cavity 100. A packing layer 211 is arranged inside the high gravity rotor 21, and static electrode plates 212 are arranged in the packing layer 211. The static electrode plates 212 generate an electrostatic field to charge the dust particles, so that the dust particles are adsorbed on the packing layer 211. The high speed rotation of the high gravity rotor 21 causes the uncharged dust particles in the dusty gas to be thrown towards the outer wall of the rotor, and gas-solid separation is achieved under the synergistic action of the electric field force and the centrifugal force; A spray module 300, which is arranged on the inner wall of the cavity 100 and installed above the high gravity rotor 21, and is used to spray an atomized water curtain to moisten and adhere to the dust particles, and at the same time clean the inside of the high gravity rotor 21; An auxiliary ash discharge module 400, which is arranged at the dust discharge port 13 and includes a pulse type nitrogen pressurizing device, and is used to prevent high humidity dust from caking and improve the continuity of ash discharge.

[0029] In the technical solution of the present invention, the dusty gas forms a swirling flow field through the tangential air inlet method. Coarser dust particles can be pre-separated under the action of centrifugal force, reducing the subsequent electrostatic dust removal load. The rotating guide vane group can adjust the rotation direction and rotation speed of the blades to adapt to dusty gases with different dust concentrations. The centrifugal force brought by the high speed rotation of the high gravity rotor 21 and the electrostatic field brought by the static electrode plates 212 can cooperate synergistically. The centrifugal force can be used to separate larger particle dust, and the electrostatic field is used to adsorb smaller particle dust, improving the dust removal effect on the dusty gas. The spray module 300 sprays atomized droplets onto the high gravity rotor 21, increasing the moisture content of the dust adhering to the high gravity rotor 21, improving the adhesion performance of the dust, preventing the secondary flying of the dust, and at the same time can clean the high gravity rotor 21 by increasing the amount of water sprayed. The auxiliary ash discharge module 400 can make the pressurized nitrogen gas flow impact the dust discharge port, break or vibrate the caked high humidity dust in or near the exhaust port 12, improve the continuity of dust discharge, and fill the gas in and near the dust discharge port 13 with nitrogen. Through the inertness of nitrogen, the harm of dust explosion is reduced.

[0030] In one embodiment, the auxiliary dust discharging module 400 includes a dust collecting hopper 41. The dust collecting hopper 41 is provided on the bottom wall of the cavity 100, communicates with the dust discharging port 13, and is located directly below the high-gravity rotor 21. The spraying module 300 further includes a liquid collecting tank 31. The liquid collecting tank 31 surrounds the bottom wall of the cavity 100. A superhydrophobic coating is provided on the inner wall of the dust collecting hopper 41, and a hydrophilic coating is provided on the inner wall of the liquid collecting tank 31. The spraying liquid is sprayed from the spraying module 300 onto the high-gravity rotor 21, and combines with the dust on the high-gravity rotor 21 to form a dust-containing liquid film. After the dust-containing liquid film converges into dust-containing liquid droplets, the dust-containing liquid droplets are thrown to the inner wall of the cavity 100 under the action of centrifugal force. The dust-containing liquid droplets slide into the liquid collecting tank 31 on the inner wall of the cavity 100. The hydrophilic coating applied on the liquid collecting tank 31 enables more dust-containing liquid droplets to smoothly flow into the liquid collecting tank 31. The dust collecting hopper 41 is used to collect larger particles thrown out by the centrifugal force, and the superhydrophobic coating applied on the inner wall of the dust collecting hopper 41 helps to prevent the dust-containing liquid droplets on the bottom wall of the cavity 100 from sliding into the dust collecting hopper 41, reducing the liquid content entering the dust collecting hopper and reducing the probability of dust caking in the dust collecting hopper. Among them, the auxiliary dust discharging module 400 can break up some of the high-humidity dust blocks formed after the dust-containing liquid droplets are thrown into the dust collecting hopper 41, so that the dust discharging port 13 is unobstructed. In other embodiments, it may also be that no superhydrophobic coating is provided on the inner wall of the dust collecting hopper 41, and no hydrophilic coating is provided on the inner wall of the liquid collecting tank 31.

[0031] In one embodiment, the auxiliary dust discharging module 400 further includes a level gauge 42, an electric dust discharging valve 43 and a dust conveying pipe 44 provided on the dust collecting hopper 41. The level gauge 42 monitors the dust level in the dust collecting hopper 41 in real time. The electric dust discharging valve 43 is provided on the bottom wall of the dust collecting hopper 41. Dust can accumulate on the valve of the electric dust discharging valve 43. The dust conveying pipe 44 communicates through the electric dust discharging valve 43. When the dust content in the dust collecting hopper 41 reaches a preset amount, the electric dust discharging valve 43 is activated to allow the dust in the dust collecting hopper to enter the dust conveying pipe 44. After the dust that can be normally discharged is successfully discharged, or when the dust discharge is blocked, the nitrogen pressurizing device cleans the caked dust in the dust collecting hopper 41. In other embodiments, it may also be that no level gauge 42 is provided, and the dust collecting hopper 41 is cleaned at preset time intervals.

[0032] In one embodiment, the nitrogen gas pressurizing device includes a nitrogen gas cylinder, a pressurizing device, a pulse control valve, and a jetting system connected in sequence. The jetting system includes a plurality of nitrogen gas nozzles 45. The plurality of nitrogen gas nozzles 45 are arranged in a ring at the bottom of the dust collecting hopper 41, and the nitrogen gas nozzles 45 are arranged to face the middle or the top of the dust collecting hopper 41. Besides directly impacting the dust agglomerates, the nitrogen gas nozzles 45 can also, through the pulse control valve, jet nitrogen gas to the side wall of the dust collecting hopper 41 at a preset pulse frequency, so as to cause high-frequency vibration of the wall of the dust collecting hopper 41, and shake off the agglomerated dust from the wall of the dust collecting hopper 41. In other embodiments, the pulse control valve may not be provided, and the nitrogen gas pressurizing device further includes a movable seat for rotating the nitrogen gas nozzles 45.

[0033] In one embodiment, a plurality of corrugated nets 213 are provided in the packing layer 211. The corrugated nets 213 are made of stainless steel. At least one corrugated net 213 is provided on opposite sides of the static electrode plate 212, and the corrugated nets 213 are grounded. The corrugated nets 213 cooperate with the static electrode plate 212 to serve as the grounding electrode of the static electrode plate 212. Dust particles with charges in the electrostatic field move towards the corrugated nets 213 and adhere to the corrugated nets 213. The pores on the corrugated nets 213 can enable the spraying liquid to form a liquid film, so that after combining with the dust particles to form a dust-containing liquid film, it is thrown off from the corrugated nets 213. Further, the packing layer 211 further includes insulating brackets arranged between the corrugated nets 213 and the static electrode plate 212, so that a gap is maintained between the corrugated nets 213 and the static electrode plate 212. The material of the insulating brackets is configured as ceramics or polytetrafluoroethylene. Further, a plurality of static electrode plates 212 are provided and arranged at intervals in the radial direction of the supergravity rotor 21, so as to form an alternating structure of "corrugated net 213 - static electrode plate 212 - corrugated net 213" in the packing layer 211. Further, conductive coatings and catalytic coatings are provided on the surfaces of the corrugated nets 213 and the static electrode plates 212. The conductive coatings improve the conductivity of the surfaces of the corrugated nets 213 and the static electrode plates 212, and the highly conductive surfaces can avoid local insulation caused by dust accumulation and maintain stable corona discharge of the static electrode plates 212. The catalytic coatings can degrade harmful gases contained in the dust-containing gas. For example, when the catalyst in the catalytic coating is MnO 2 -CeO 2 When it is the catalyst glue, it can decompose VOCs and ozone. In other embodiments, the conductive coatings and the catalytic coatings may not be provided on the surfaces of the corrugated nets 213 and the static electrode plates 212.

[0034] In one embodiment, the static electrode plate 212 is configured as a corrugated plate structure. The concave-convex structure of the corrugated plate makes the electric field lines dense at the wave crests and dispersed at the wave troughs, forming a periodic non-uniform electric field and increasing the surface area of the static electrode plate 212 to be able to adsorb more dust particles. Among them, when the dust-containing gas flushes the static electrode plate 212, the corrugated grooves guide the dust-containing gas to flush the wave crests (the areas with the highest field strength), reducing the dust deposition at the wave crests. After the dust is washed away from the wave crests, the charged dust particles are adsorbed at the wave troughs (low-field-strength areas) due to the mirror force, preventing the dust particles from re-entraining, so that the static electrode plate 212 can adsorb more dust. And when the static electrode plate 212 rotates with the supergravity rotor 21, the corrugated plate forces the air flow to form turbulence, prolonging the time for the dust to stay near the static electrode plate 212, increasing the number of charged dust particles, and improving the dust removal effect.

[0035] In one embodiment, the spraying module 300 includes a water pump 32, a water delivery pipe 33, and a spray head 34 that are connected in sequence. The spray head 34 is provided on the inner wall of the cavity 100. There are multiple spray heads 34 and they are evenly distributed along a circle above the supergravity rotor 21 to be able to evenly spray atomized spraying liquid onto the supergravity rotor 21, making the spraying liquid on the supergravity rotor 21 evenly covered. In other embodiments, the spray heads 34 may also be distributed along the axial direction of the supergravity rotor 21.

[0036] In one embodiment, the structure of the cavity 100 is configured as a cylinder, and the structure of the supergravity rotor 21 inside the cavity 100 is configured as a sphere, and the diameter of the structure of the supergravity rotor 21 inside the cavity 100 can match the diameter of the cavity 100. That is, the static electrode plate 212 and the corrugated mesh 213 are arranged in a ring on the rotating shaft of the supergravity rotor 21. At this time, when the supergravity rotor 21 rotates at a high speed, the dust particles will preferentially gather at the maximum diameter of the supergravity rotor 21 and then be thrown out, increasing the probability of throwing the dry dust into the ash hopper 41. Further, the air inlet 11 is provided on the lower side of the supergravity rotor 21. That is, the dust-containing gas cannot directly flow to the exhaust port 12 by bypassing the packing layer 211, increasing the dust removal efficiency.

[0037] In one embodiment, the spray module 300 is further provided with a liquid collecting tank 31, a circulating water tank 35 and a filter 36. The liquid collecting tank 31 collects the spray liquid thrown out by the supergravity rotor 21. The liquid collecting tank 31 is connected to the circulating water tank 35. The filter 36 is arranged between the liquid collecting tank 31 and the circulating water tank 35. The circulating water tank 35 is connected to the water pipe 33 through a water pump 32. After the dust droplets are collected in the liquid collecting tank 31, they are filtered by the filter 36 and enter the circulating water tank 35 to save the use of water resources. Furthermore, the spray module 300 also includes an electric flocculation component 37, which is arranged between the liquid collecting tank 31 and the circulating water tank 35 and is connected to the filter 36 to remove the charged dust colloids in the spray liquid. In other embodiments, the electric flocculation component may not be provided.

[0038] In one embodiment, the supergravity dust removal device further includes an intelligent control system, which includes a sensor group and an electric control component electrically connected to the sensor group. The sensor group includes a dust concentration sensor, a temperature sensor, a humidity sensor, and an electrostatic field strength sensor arranged near the supergravity rotor 21 in the cavity 100. The electric control component is electrically connected to the air intake module, the electrostatic dust removal module 200, the spray module 300, and the auxiliary dust removal module 400. The dust concentration sensor directly reflects the amount of dust that needs to be processed in the cavity 100. When the concentration is high, the electric control component needs to appropriately reduce the rotation speed of the rotating guide vane group, reduce the dust-containing gas entering the cavity 100, and at the same time increase the rotation speed and electrostatic field strength of the supergravity rotor 21 to enhance the dust processing capacity. However, it is necessary to pay attention to the situation that the pressure loss is too high or the energy consumption increases sharply. The temperature sensor detects the temperature in the cavity 100, because too high or too low temperature may affect the corona discharge effect. The electric control component can cool down by adjusting the spraying amount of the spray module 300, or adjust the electrostatic field voltage to compensate for temperature changes. Since high humidity may affect the conductivity of dust, resulting in a decrease in the effect of the electrostatic field, the spray system itself will increase humidity. The electronic control component needs to balance the spray volume and the electrostatic field parameters to prevent condensation or equipment corrosion caused by excessive humidity. When the humidity is too high, the electronic control component prevents the dust in the dust hopper from blocking the dust discharge port 13 by reducing the spray volume or increasing the dust discharge frequency. The electrostatic field strength sensor directly monitors the state of the electric field to ensure that it is in the optimal working range. If the electric field strength is insufficient, it may be necessary to increase the voltage or check whether there is too much dust accumulated on the static electrode plate 212. The electronic control component cleans it through the linkage spray module 300 to keep the electrode surface clean and maintain the electric field efficiency. The electronic control board can determine whether to open the pulse control valve for dust discharge based on the dust accumulation in the dust hopper by the level meter 42 and the data of the humidity sensor in the cavity 100.

[0039] The above are only exemplary embodiments of the present invention, and do not limit the patent scope of the present invention accordingly. Any equivalent structural transformation made under the technical concept of the present invention by using the content of the specification and drawings of the present invention, or any direct / indirect application in other related technical fields, is included in the patent protection scope of the present invention.

Claims

1. A super gravity dust removal device, characterized in that: include: The cavity comprises an air inlet provided on the side wall of the cavity and facing the tangent direction of the side wall of the cavity, an exhaust port provided on the top wall of the cavity, and a dust exhaust port provided on the bottom wall of the cavity; An air intake module, which is arranged at the air inlet and is used to introduce dust-laden gas and regulate the flow direction and speed of the dust-laden gas by rotating the guide vane group; The electrostatic dust removal module comprises an ultra-gravity rotor arranged in the middle of the cavity, a packing layer is arranged inside the ultra-gravity rotor, a static electrode plate is arranged in the packing layer, the static electrode plate generates an electrostatic field to charge dust particles so that the dust particles are adsorbed on the packing layer, and the ultra-gravity rotor rotates at a high speed to throw uncharged dust particles in the dust-containing gas toward the outer wall of the rotor, thereby achieving gas-solid separation under the synergistic effect of the electric field force and the centrifugal force; A spray module, disposed on the inner wall of the cavity and installed above the supergravity rotor, for spraying an atomized water curtain to wet and adhere dust particles and clean the interior of the supergravity rotor; The auxiliary dust discharge module is arranged at the dust discharge port and includes a pulse nitrogen pressurizing device for preventing high-humidity dust from agglomerating and improving the continuity of dust discharge.

2. The supergravity dust removal device according to claim 1, characterized in that: The nitrogen pressurizing device comprises a nitrogen bottle, a pressurizing device, a pulse control valve and a spraying system which are connected in sequence, and the spraying system comprises a plurality of nitrogen nozzles.

3. The supergravity dust removal device according to claim 2, characterized in that: The auxiliary ash discharge module comprises an ash collecting hopper, which is arranged on the bottom wall of the cavity and is connected to the dust discharge port, and a plurality of nitrogen nozzles are arranged in a circle at the bottom of the ash collecting hopper, and the nitrogen nozzles are arranged toward the middle or top of the ash collecting hopper; And / or, the auxiliary ash discharge module also includes a level meter, an electric ash unloading valve and a dust conveying pipe arranged on the ash collecting hopper, the level meter monitors the dust level in the ash collecting hopper in real time, the electric ash unloading valve is arranged on the bottom wall of the ash collecting hopper, dust can accumulate on the valve of the electric ash unloading valve, and the dust conveying pipe is connected through the electric ash unloading valve.

4. The supergravity dust removal device according to claim 3, characterized in that: The ash hopper is arranged directly below the supergravity rotor. The spray module also includes a liquid collecting tank, which surrounds the bottom wall of the cavity. The inner wall of the ash hopper is provided with a super-hydrophobic coating, and the inner wall of the liquid collecting tank is provided with a hydrophilic coating.

5. The supergravity dust removal device according to claim 1, characterized in that: A plurality of corrugated nets are arranged in the packing layer. The corrugated nets are made of stainless steel. At least one of the corrugated nets is arranged on opposite sides of the static electrode plate. The corrugated nets are grounded.

6. The supergravity dust removal device according to claim 5, characterized in that: The static electrode plate is configured as a corrugated plate structure; And / or, the surfaces of the corrugated mesh and the static electrode plate are provided with a conductive coating and a catalytic coating; And / or, the static electrode plates are provided in plurality and are arranged at intervals along the radial direction of the supergravity rotor; And / or, the structure of the cavity is cylindrical, the structure of the ultra-gravity rotor in the cavity is spherical, and the diameter of the structure of the ultra-gravity rotor in the cavity can match the diameter of the cavity.

7. The supergravity dust removal device according to claim 1, characterized in that: The spray module comprises a water pump, a water pipe and a spray head which are connected in sequence. The spray head is arranged on the inner wall of the cavity. There are a plurality of spray heads which are evenly distributed in a ring shape above the supergravity rotor.

8. The supergravity dust removal device according to claim 7, characterized in that: The spray module is also provided with a liquid collecting tank, a circulating water tank and a filter. The liquid collecting tank collects the spray liquid thrown out by the supergravity rotor, the liquid collecting tank is connected with the circulating water tank, the filter is arranged between the liquid collecting tank and the circulating water tank, and the circulating water tank is connected with the water supply pipe through the water pump.

9. The supergravity dust removal device according to claim 8, characterized in that: The spray module further comprises an electric flocculation component, which is arranged between the liquid collecting tank and the circulating water tank and is connected with the filter to remove charged dust colloids in the spray liquid.

10. The supergravity dust removal device according to claim 1, characterized in that: The supergravity dust removal device also includes an intelligent control system, which includes a sensor group and an electronic control component electrically connected to the sensor group. The sensor group includes a dust concentration sensor, a temperature sensor, a humidity sensor, and an electrostatic field strength sensor arranged in the cavity. The electronic control component is electrically connected to the air intake module, the electrostatic dust removal module, the spray module, and the auxiliary ash removal module.

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