CN211069485U - High-efficient desorption device of fine particles - Google Patents

Abstract

The utility model discloses a fine particulate matter high-efficiency removing device, which comprises an aerosol turbulent flow and sound wave pretreatment area, an aerosol turbulent flow and sound wave agglomeration area, an aerosol dust collection area and an inertia sedimentation dust collection area which are sequentially communicated from top to bottom; the aerosol turbulent flow and sound wave pretreatment area and the aerosol turbulent flow and sound wave agglomeration area adopt a cyclone-like cutter structure with tangential air inlet; the air inlet of the aerosol turbulence and sound wave pretreatment area and the air inlet of the aerosol turbulence and sound wave agglomeration area are symmetrically arranged in a counterclockwise way; the aerosol dust collection area and the inertial settling dust collection area are both of cylindrical structures, and the cylinder wall is of a water film plate electrode structure. The utility model discloses to the aerosol particulate matter of fixed source emission, adopt perpendicular integration cylindrical structure form, realize the aerosol particulate matter, the high-efficient coagulation desorption of especially fine particulate matter has effectively avoided secondary raise dust, deposition and the corruption of board electrode.

Description

High-efficient desorption device of fine particles

Technical Field

The utility model relates to a particulate matter dust collector, concretely relates to high-efficient desorption device of fine particles thing.

Background

China is a country using coal as a main energy source, coal combustion provides heat source and power for people and brings serious particulate pollution, coal-fired boiler emission occupies a large part of the sources of fine particulate matters, and particularly, small and medium-sized industrial boilers and industrial kilns widely used in various industries have serious pollution due to lack of corresponding environment-friendly control equipment. After the aerosol particles, particularly the fine particles PM2.5, are discharged into the air, the daily life and work of people are seriously influenced, and even the life safety of people is threatened. Because the fine particles have small volume and light weight, the fine particles have long retention time in the atmosphere, long floating distance and wide influence range. And due to the unique extinction effect, the visibility of the environment can be seriously reduced, large-area dust-haze weather is caused, and the normal travel of people is influenced. In addition, the specific surface area of the fine particles is large, a large amount of toxic and harmful heavy metals can be enriched on the surface of the fine particles, the blocking capability of a human body to the fine particles is limited, so that the fine particles can enter respiratory tracts of the human body and be deposited in alveoli, and the heavy metals in the fine particles can enter blood of the human body, so that diseases in aspects of asthma, bronchus, cardiovascular diseases and the like are caused, and the health of the human body is harmed.

At present, most coal-fired power plant boilers in China mainly adopt an electrostatic precipitator (ESP) to remove particulate matters in tail flue gas. The dust removal efficiency of the high-efficiency electrostatic dust collector can reach 99.9%, but for fine particles, especially particles with the particle size of 0.1 micron to 1.0 micron, about 15% of the fine particles still escape to the atmosphere. Therefore, the aggregation of various particles is considered to be superimposed on the electrostatic dust collection mechanism, so that fine particles are firstly aggregated and grown into particles with larger particle size, and then the particles are collected through the electrostatic dust collection function. Aiming at trapping of fine particles, the current reliable method adopts an agglomeration method to agglomerate and grow the fine particles into particles with larger particle size which are easy to remove. Agglomeration methods currently under investigation include: electrical coagulation, acoustic agglomeration, phase change coagulation growth, chemical agglomeration and the like, wherein the electrical coagulation and the acoustic agglomeration are widely regarded due to obvious effects. However, these agglomeration methods have a certain disadvantage when they act alone, and the effect of agglomeration of fine particles is not very obvious, so that the final removal efficiency of fine particles cannot be effectively improved.

Therefore, it is necessary to develop a novel efficient fine particle removal device for a synergistic removal method, and a synergistic removal mechanism based on acoustic agglomeration and electric field dust collection is an important research direction, so that fine particles are agglomerated and grown into particles with larger particle size under the synergistic action of various acting forces such as acoustic field force, electric field force, inertia force, centrifugal force, thermophoretic force, liquid bridge force, solid bridge force and the like, and then are captured and removed.

SUMMERY OF THE UTILITY MODEL

The utility model aims at overcoming the current dust collector of coal fired power plant and to the not enough of fine particles desorption effect, provide a high-efficient desorption device of fine particles. This fine particles remove device can adopt perpendicular integration cylindrical structure form to the mineral substance particulate matter that the fixed source discharged, realizes the aerosol particulate matter, and the high efficiency of fine particles especially condenses and the desorption, effectively avoids the secondary raise dust, deposition and the corruption of board electrode.

The utility model provides a technical scheme that above-mentioned problem adopted is: a fine particulate matter efficient removal device is characterized by comprising a pretreatment aerosol particulate matter inlet, an aerosol turbulent flow and sound wave pretreatment area, an aerosol particulate matter inlet, an aerosol turbulent flow and sound wave agglomeration area, an aerosol dust collection area, an inertial sedimentation dust collection area, an aerosol outlet, a sound wave generator, an aerosol turbulent flow pretreatment agglomeration ring, an aerosol turbulent flow agglomeration ring, a baffle, a water film electrode, an external water source access pipeline, a water tank, a high-voltage negative direct current wire, a barbed wire electrode, a plate electrode, an ash bucket and an ash bucket slurry outlet; the device comprises an aerosol turbulent flow and sound wave pretreatment area, an aerosol turbulent flow and sound wave agglomeration area, an aerosol dust collection area and an inertial sedimentation dust collection area, wherein the aerosol turbulent flow and sound wave pretreatment area, the aerosol turbulent flow and sound wave agglomeration area, the aerosol dust collection area and the inertial sedimentation dust collection area are sequentially arranged inside the device from top to bottom; the acoustic wave generator is arranged above the aerosol turbulent flow and acoustic wave pretreatment area; the pretreatment aerosol particle inlet is arranged at the top of the aerosol turbulent flow and sound wave pretreatment region, and an aerosol turbulent flow pretreatment aggregation ring is arranged in the aerosol turbulent flow and sound wave pretreatment region; the aerosol particle inlet is arranged at the top of the aerosol turbulent flow and sound wave agglomeration region, and an aerosol turbulent flow agglomeration ring is arranged in the aerosol turbulent flow and sound wave agglomeration region; the aerosol dust collection area is internally provided with a baffle, a water film electrode external water source access pipeline, a water tank, a high-voltage negative direct current wire, a bur line electrode and a plate electrode, the water film electrode external water source access pipeline is communicated with the water tank, a gap is formed between the baffle and the plate electrode, the water tank is communicated with the gap, the high-voltage negative direct current wire is connected with the bur line electrode, and the bur line electrode is arranged in the middle of the aerosol dust collection area; the aerosol outlet and the ash bucket are arranged at the bottom of the inertial settling dust collection area, a plate electrode is also arranged in the inertial settling dust collection area, and a slurry outlet is arranged at the bottom of the ash bucket.

Furthermore, the pretreatment aerosol particle inlet is tangentially arranged at the top of the aerosol turbulence and sound wave pretreatment area and forms a cyclone-like cutter structure with tangential air inlet together with the aerosol turbulence pretreatment aggregation ring, and the inclination angle of the aerosol turbulence pretreatment aggregation ring is 60 degrees.

Furthermore, the aerosol particle inlet is tangentially arranged at the top of the aerosol turbulence and sound wave agglomeration region and forms a tangential air inlet cyclone-like cutter structure together with the aerosol turbulence aggregation ring, and the inclination angle of the aerosol turbulence aggregation ring is 60 degrees.

Further, the pretreatment aerosol particle inlet and the aerosol particle inlet are symmetrically arranged on two sides of the fine particle efficient removal device in a counterclockwise mode.

Further, the sound generator is arranged at the top of the fine particle matter efficient removing device, and a vertically through sound field is formed inside the fine particle matter efficient removing device.

Further, the plate electrode is made of stainless steel materials, and is vertically arranged on the inner wall of the fine particle efficient removal device to form a water film plate electrode structure.

Furthermore, the bur line electrode is made of stainless steel materials and is vertically arranged in the center of the fine particle matter efficient removing device, burs are radially distributed on the electrode at equal intervals and are connected with the high-voltage negative direct current wire, and a radially distributed electric field is formed inside the fine particle matter efficient removing device.

Furthermore, the ash bucket is arranged at the bottom of the fine particle efficient removing device, and the surface of the ash bucket is coated with a wear-resistant and corrosion-resistant sound absorption material.

The removing method of the fine particle efficient removing device comprises the following steps: after small-flow aerosol particles pass through a pretreated aerosol particle inlet, under the action of centrifugal separation, large-particle-size particles are separated and move downwards along the cylinder wall of the fine particle efficient removal device, enter the top central area of the aerosol turbulence and sound wave agglomeration area after passing through the aerosol turbulence pretreatment agglomeration ring, the rest of aerosol taking small-particle-size particles as the main forms local ascending airflow vortex under the action of the aerosol turbulence pretreatment agglomeration ring, and under the blocking of the top of the cylindrical device, the aerosol particles downwards enter the top central area of the aerosol turbulence and sound wave agglomeration area; after the large-flow aerosol particles pass through the aerosol particle inlet, under the action of centrifugal separation, large-particle-size particles are separated and reach the plate electrode downwards along the cylindrical wall, and then are captured by the water film to be washed into the ash bucket, and the rest of aerosol taking small-particle-size particles as the main forms local ascending airflow vortex under the action of the aerosol turbulence aggregation ring; two aerosol airflow vortexes in the top central area of the aerosol turbulence and sound wave agglomeration area are converged and collided with each other, so that the collision and agglomeration effect among particles with different particle sizes is promoted; the vertical through sound field promotes the homodromous agglomeration effect among the particles with different particle sizes; the aerosol particulate matter after the reunion gets into the aerosol dust collecting area, reaches behind the plate electrode under the dual function of electric field effect and air current vortex entrainment and is washed by the water film entrapment and get into the ash bucket, and remaining aerosol particulate matter gets into the inertial settling dust collecting area, and the particulate matter gets into the ash bucket because inertial action, and the aerosol after the dust removal passes through the aerosol export and discharges to accomplish the desorption process of aerosol particulate matter.

Further, the aerosol turbulence and sound wave pretreatment method comprises the following steps: the small-flow aerosol particles tangentially enter the aerosol turbulent flow and sound wave pretreatment region, under the action of centrifugal separation, the large-particle-size particles are separated and downwards pass through the aerosol turbulent flow pretreatment aggregation ring along the cylinder wall and then enter the top central region of the aerosol turbulent flow and sound wave aggregation region to serve as seed particles for sound wave aggregation, the rest of the aerosol taking the small-particle-size particles as the main part generates a cyclone cutter-like effect under the action of the aerosol turbulent flow pretreatment aggregation ring, the aerosol particles form local ascending airflow vortex, and under the blocking of the top of the cylindrical device, the aerosol particles downwards move to enter the top central region of the aerosol turbulent flow and sound wave aggregation region; the sound generator arranged at the top of the cylindrical device forms a vertically through sound field, and the collision and agglomeration effect of particles in local ascending airflow vortex is promoted under the action of the sound field (homodromous agglomeration, sound-induced turbulence and sound wave wake effect).

Further, the aerosol turbulence and sound wave agglomeration method comprises the following steps: large-flow aerosol particles tangentially enter an aerosol turbulent flow and sound wave agglomeration region, under the action of centrifugal separation, large-particle-size particles are separated and move downwards along the cylinder wall, are captured and washed by a water film after reaching a plate electrode and enter an ash bucket, and the rest of aerosol taking small-particle-size particles as main forms local ascending airflow vortex under the action of an aerosol turbulent flow agglomeration ring and is mutually converged with 'seed particles' in the central region of the top of the aerosol turbulent flow and sound wave agglomeration region and the airflow vortex of small-particle-size aerosol particles; the upper and lower aerosol airflows collide with each other in a vortex manner, so that the collision and agglomeration action among particles with different particle sizes is promoted; the vertically through sound field promotes the collision agglomeration effect of the particles in the airflow vortex through the sound field effect (the equidirectional agglomeration, the sound-induced turbulence and the sound wave wake effect), and promotes the agglomeration and growth of the aerosol particles with small particle size by using the large-particle-size seed particles through the equidirectional agglomeration of the sound field.

Further, the aerosol dust collection method comprises the following steps: the aerosol turbulence and sound wave pretreatment area and the counterclockwise two-stage tangential air inlet structure of the aerosol turbulence and sound wave agglomeration area enable the aerosol dust collection area to form strong airflow vortex, aerosol particles are agglomerated into large-particle-size particles after passing through the aerosol turbulence and sound wave agglomeration area and enter the aerosol dust collection area, on one hand, the large-particle-size particles are easily trapped and washed by a water film after reaching a plate electrode under the dual actions of entrainment and inertia separation of the airflow vortex and enter an ash hopper, and on the other hand, the vertically penetrating sound field action easily enables the aerosol particles to be continuously agglomerated and grown up so as to be separated and trapped. In addition, negative direct-current high-voltage electricity is applied to the barbed wire electrodes, violent pointed corona discharge is formed on the barbed points, radially distributed electric fields are formed among the plate electrodes, a large number of positive ions, negative ions and high-energy free electrons exist in a narrow corona region at the same time, particles in the corona region are charged with different polarities in two modes of electric field migration charging and free diffusion charging, and the charged particles are collided and condensed mutually through diffusion and coulomb effect; outside the corona area, negative ions and free electrons exist at the same time, particulate matters are charged with the same polarity in two modes of electric field migration charge and free diffusion charge, and part of charged particles are mutually collided and condensed through diffusion; the vertically through sound field promotes collision and coalescence among particles through the action of the sound field (homodromous agglomeration, sound-induced turbulence and sound wave wake effect); the vertically through sound field and the radially distributed electric field are mutually crossed, and the electric field migration effect and the acoustic wave homodromous aggregation effect are mutually coupled, so that the action area and the collision probability of the collision and aggregation of the particles are further increased, and the collision and aggregation of the particles are promoted; the condensed particulate matter and water vapor particles move to the plate electrode under the action of electric field migration, and are collected by the water film to flush into the ash hopper after reaching the water film electrode.

Further, the inertial settling dust collection method comprises the following steps: after aerosol particles enter the inertial settling dust collection area, the aerosol outlet and the airflow flow direction are arranged in a crossed mode, the particles enter the ash bucket under the action of inertia and are collected by slurry of the ash bucket, the aerosol airflow turns 90 degrees to enter the aerosol outlet, a water curtain is formed at the aerosol outlet under the action of water film scouring of the plate electrode, and the particles in the aerosol airflow are further removed through water drop scouring.

Further, the ash removal method of the water film plate electrode comprises the following steps: clean water source gets into the basin through the external water source access pipeline of water membrane electrode, the top of basin is close to wall department and opens and to have the overflow mouth can avoid the formation of water inlet torrent interference water film better, rivers can spill over into baffle and the space department of plate electrode when the water level in the basin surpasss the overflow mouth height, under the effect of baffle, rivers form the one deck water film at the surperficial top-down evenly distributed of plate electrode, when aerosol particulate matter and steam particle by the entrapment of plate electrode, it directly gets into the ash bucket and outwards discharges through the thick liquid export with the combined action of flow field power mixed thick liquid under the water film erodees, thereby can not form the deposition on plate electrode surface, avoid the secondary raise dust, the effect of gathering dust has been improved.

Compared with the prior art, the utility model, have following advantage and effect:

(1) the vertical integrated cylindrical structure form of synergistic desorption is adopted, so that the smoothness of an aerosol particle passage flow field is kept, and dust deposition and scaling in a local area are avoided.

(2) The vertical through sound field and gravity field are used as basic action fields, and the centrifugal separation action, the electrocoagulation action and the inertial sedimentation action are combined from top to bottom in sequence to realize the removal of aerosol particles, particularly the removal process of fine particles is graded section by section, so that the working pressure of a single dust removal area is reduced, and the removal effect of the particles is improved.

(3) The aerosol turbulence and sound wave pretreatment area is arranged at the uppermost end of the whole device, and meanwhile, a small-flow air inlet mode can be adopted, so that on one hand, particles with large particle sizes are pre-separated through a centrifugal separation effect, seed particles with the sound field equidirectional agglomeration effect are formed, and on the other hand, an airflow vortex from top to bottom is formed, and the collision effect of fine particles is strengthened.

(4) In the aerosol turbulent flow and sound wave agglomeration region, a large-flow air inlet mode can be adopted, on one hand, large-particle-size particles are separated and removed through centrifugal separation, so that the agglomeration and dust removal workload of a subsequent region is greatly reduced, and on the other hand, collision and agglomeration of fine particles are promoted through sound field homodromous agglomeration enhanced by 'seed particles' and up-and-down converging airflow vortex.

(5) The inclination angles of the aggregation effect rings of the aerosol turbulence and sound wave pretreatment area and the aerosol turbulence and sound wave agglomeration area are set to be 60 degrees and far larger than the repose angle of common fly ash, so that the ash accumulation of the aggregation effect rings is avoided.

(6) The aerosol turbulent flow and sound wave agglomeration area is arranged below the aerosol turbulent flow and sound wave pretreatment area to form an up-down series structure of anticlockwise double-stage tangential air inlet, so that strong airflow vortex is formed in the cylindrical device, and the dust collection effect of the aerosol dust collection area is promoted.

(7) An intercrossing action field of a vertical through sound field and a radial distribution electric field is constructed in the aerosol dust collecting area, so that an action area and collision probability of particle collision aggregation are increased, the collision coagulation of particles is further promoted, and the removal effect of the particles is enhanced.

(8) In the inertial settling dust collecting area, inertial separation and water curtain flushing are combined to further separate and eliminate the particles from the aerosol.

(9) The dust removal mode of the water film plate electrode can be adopted, so that the dust removal of the plate electrode is facilitated, and meanwhile, the water film plate electrode is vertically arranged, so that the dust deposition on the surface of the plate electrode is avoided under the combined action of hydraulic flushing and flow field force, secondary dust raising is avoided, and the dust collection effect is improved.

(10) This high-efficient desorption device of fine particles adopts the hierarchical coagulation and desorption of stage by stage, and the system architecture is simple and convenient firm, and particulate matter accommodation is extensive, and fine particles desorption is efficient, and the steady operation duration of system is longer.

Drawings

Fig. 1 is the embodiment of the utility model provides an embodiment fine particles high efficiency desorption device's main view structure schematic diagram.

Fig. 2 is a schematic top view (a-a plane direction) of the efficient fine particle removing device according to the embodiment of the present invention.

In the figure: the device comprises a pretreatment aerosol particle inlet 1, an aerosol turbulent flow and sound wave pretreatment area 2, an aerosol particle inlet 3, an aerosol turbulent flow and sound wave agglomeration area 4, an aerosol dust collection area 5, an inertial settling dust collection area 6, an aerosol outlet 7, a sound wave generator 8, an aerosol turbulent flow pretreatment aggregation ring 9, an aerosol turbulent flow aggregation ring 10, a baffle 11, a water film electrode external water source access pipeline 12, a water tank 13, a high-voltage negative direct current wire 14, a barbed wire electrode 15, a plate electrode 16, an ash hopper 17 and a slurry outlet 18.

Detailed Description

The present invention will be described in further detail by way of examples with reference to the accompanying drawings, which are illustrative of the present invention and are not intended to limit the present invention.

Referring to fig. 1 to 2, the device for efficiently removing fine particulate matters in the embodiment is characterized by comprising a pretreatment aerosol particulate matter inlet 1, an aerosol turbulence and sound wave pretreatment region 2, an aerosol particulate matter inlet 3, an aerosol turbulence and sound wave agglomeration region 4, an aerosol dust collection region 5, an inertial settling dust collection region 6, an aerosol outlet 7, a sound wave generator 8, an aerosol turbulence pretreatment agglomeration ring 9, an aerosol turbulence agglomeration ring 10, a baffle 11, a water film electrode external water source access pipeline 12, a water tank 13, a high-voltage negative direct current electric wire 14, a barbed wire electrode 15, a plate electrode 16, an ash bucket 17 and an ash bucket slurry outlet 18.

The fine particle efficient removing device is of a cylindrical structure, the aerosol turbulent flow and sound wave pretreatment region 2, the aerosol turbulent flow and sound wave agglomeration region 4, the aerosol dust collecting region 5 and the inertial sedimentation dust collecting region 6 are sequentially arranged inside the fine particle efficient removing device from top to bottom, and the aerosol turbulent flow and sound wave pretreatment region 2, the aerosol turbulent flow and sound wave agglomeration region 4, the aerosol dust collecting region 5 and the inertial sedimentation dust collecting region 6 are sequentially communicated; the sound wave generator 8 is arranged above the aerosol turbulent flow and sound wave pretreatment region 2; the pretreatment aerosol particle inlet 1 is arranged at the top of the aerosol turbulent flow and sound wave pretreatment region 2, and an aerosol turbulent flow pretreatment aggregation ring 9 is arranged in the aerosol turbulent flow and sound wave pretreatment region 2; the aerosol particle inlet 3 is arranged at the top of the aerosol turbulent flow and sound wave agglomeration region 4, and an aerosol turbulent flow agglomeration ring 10 is arranged in the aerosol turbulent flow and sound wave agglomeration region 4; a baffle plate 11, a water film electrode external water source access pipeline 12, a water tank 13, a high-voltage negative direct current wire 14, a barbed wire electrode 15 and a plate electrode 16 are arranged in the aerosol dust collection area 5, the water film electrode external water source access pipeline 12 is communicated with the water tank 13, a gap is formed between the baffle plate 11 and the plate electrode 16, the water tank 13 is communicated with the gap, the high-voltage negative direct current wire 14 is connected with the barbed wire electrode 15, and the barbed wire electrode 15 is arranged in the middle of the aerosol dust collection area 5; the aerosol outlet 7 and the ash bucket 17 are arranged at the bottom of the inertial settling dust collecting area 6, the plate electrode 16 is also arranged in the inertial settling dust collecting area 6, and the slurry outlet 18 is arranged at the bottom of the ash bucket 17.

The pretreatment aerosol particle inlet 1 is tangentially arranged at the top of the aerosol turbulence and sound wave pretreatment region 2 and forms a cyclone-like cutter structure for tangential air inlet together with the aerosol turbulence pretreatment aggregation ring 9, and the inclination angle of the aerosol turbulence pretreatment aggregation ring 9 is 60 degrees.

The aerosol particle inlet 3 is tangentially arranged at the top of the aerosol turbulence and sound wave agglomeration region 4 and forms a cyclone-like cutter structure for tangential air intake together with the aerosol turbulence aggregation ring 10, and the inclination angle of the aerosol turbulence aggregation ring 10 is 60 degrees.

The pretreatment aerosol particle inlet 1 and the aerosol particle inlet 3 are symmetrically arranged on two sides of the fine particle efficient removal device in a counterclockwise mode.

The sound generator 8 is arranged at the top of the fine particle matter high-efficiency removing device, and a vertically through sound field is formed inside the fine particle matter high-efficiency removing device.

Plate electrode 16 adopts stainless steel material, and plate electrode 16 is vertical arranges on the inner wall of the high-efficient desorption device of fine particles, forms water film plate electrode structure.

The prickle wire electrode 15 is made of stainless steel materials, the prickle wire electrode 15 is vertically arranged in the center of the fine particle matter efficient removing device, prickles are radially distributed on the electrode at equal intervals and are connected with the high-voltage negative direct current wire 14, and a radially distributed electric field is formed inside the fine particle matter efficient removing device.

The ash hopper 17 is arranged at the bottom of the fine particle efficient removing device, and the surface of the ash hopper 17 is coated with a wear-resistant and corrosion-resistant sound absorption material.

The removal method comprises the following steps: after small-flow aerosol particles pass through the pretreated aerosol particle inlet 1, under the action of centrifugal separation, large-particle-size particles are separated and move downwards along the cylinder wall of the fine particle efficient removing device, the large-particle-size particles enter the top central area of the aerosol turbulence and sound wave agglomeration area 4 after passing through the aerosol turbulence pretreatment aggregation ring 9, the rest of aerosol taking small-particle-size particles as the main part forms local ascending airflow vortex under the action of the aerosol turbulence pretreatment aggregation ring 9, and the aerosol particles downwards enter the top central area of the aerosol turbulence and sound wave agglomeration area 4 under the blockage of the top of the cylindrical device; after the large-flow aerosol particles pass through the aerosol particle inlet 3, under the action of centrifugal separation, large-particle-size particles are separated and reach the plate electrode 16 downwards along the cylindrical wall, and then are captured by a water film to be washed into the ash bucket 17, and the rest aerosol mainly comprising small-particle-size particles forms local ascending airflow vortex under the action of the aerosol turbulent current collecting ring 10; two aerosol airflow vortexes in the top central area of the aerosol turbulent flow and sound wave agglomeration area 4 are converged and collided with each other, so that the collision and agglomeration effect among particles with different particle sizes is promoted; the vertical through sound field promotes the homodromous agglomeration effect among the particles with different particle sizes; the aerosol particles after agglomeration enter the aerosol dust collecting area 5, reach the plate electrode 16 under the dual action of the electric field and the air flow vortex entrainment, are collected by a water film and washed to enter the ash hopper 17, the rest aerosol particles enter the inertial settling dust collecting area 6, the particles enter the ash hopper 17 due to the inertial action, and the aerosol after dust removal is discharged through the aerosol outlet 7, so that the removal process of the aerosol particles is completed.

The aerosol turbulence and sound wave pretreatment method comprises the following steps: small-flow aerosol particles tangentially enter the aerosol turbulent flow and sound wave pretreatment region 2, under the action of centrifugal separation, large-particle-size particles are separated and downwards pass through the aerosol turbulent flow pretreatment aggregation ring 9 along the cylinder wall and then enter the top central region of the aerosol turbulent flow and sound wave aggregation region 4 to serve as 'seed particles' of sound wave aggregation, and the rest of aerosols taking small-particle-size particles as the main generate a cyclone cutter-like effect under the action of the aerosol turbulent flow pretreatment aggregation ring 9, the aerosol particles form local ascending airflow vortex, and under the blocking of the top of the cylindrical device, the aerosol particles downwards move to enter the top central region of the aerosol turbulent flow and sound wave aggregation region 4; the sound generator 8 arranged at the top of the cylindrical device forms a vertically through sound field, and the collision and agglomeration effect of particles in the local ascending airflow vortex is promoted under the action of the sound field (the co-directional agglomeration, the sound induced turbulence and the sound wave wake effect).

The aerosol turbulence and sound wave agglomeration method comprises the following steps: large-flow aerosol particles tangentially enter the aerosol turbulent flow and sound wave agglomeration region 4, under the action of centrifugal separation, large-particle-size particles are separated and move downwards along the cylinder wall, are captured and washed by a water film after reaching a plate electrode 16 and enter an ash bucket 17, and the rest of aerosol mainly comprising small-particle-size particles forms local ascending airflow vortex under the action of the aerosol turbulent flow agglomeration ring 10 and is mutually converged with 'seed particles' in the central region of the top of the aerosol turbulent flow and sound wave agglomeration region 4 and the airflow vortex of the small-particle-size aerosol particles; the upper and lower aerosol airflows collide with each other in a vortex manner, so that the collision and agglomeration action among particles with different particle sizes is promoted; the vertically through sound field promotes the collision agglomeration effect of the particles in the airflow vortex through the sound field effect (the equidirectional agglomeration, the sound-induced turbulence and the sound wave wake effect), and promotes the agglomeration and growth of the aerosol particles with small particle size by using the large-particle-size seed particles through the equidirectional agglomeration of the sound field.

The aerosol dust collection method comprises the following steps: the aerosol turbulence and sound wave pretreatment area 2 and the aerosol turbulence and sound wave agglomeration area 4 enable the aerosol dust collection area 5 to form strong airflow vortex by a counterclockwise two-stage tangential air inlet structure, aerosol particles are agglomerated into large-particle-size particles after passing through the aerosol turbulence and sound wave agglomeration area 4 and enter the aerosol dust collection area 5, on one hand, the large-particle-size particles are easy to be trapped and washed by a water film after reaching the plate electrode 16 under the double effects of entrainment and inertial separation of the airflow vortex and enter the ash hopper 17, and on the other hand, the aerosol particles are easy to agglomerate and grow continuously under the action of a vertically penetrating sound field so as to be separated and trapped. In addition, negative direct-current high-voltage electricity is applied to the barbed wire electrode 15, severe sharp corona discharge is formed on a barbed point, a radially distributed electric field is formed between the plate electrodes 16, a large number of positive ions, negative ions and high-energy free electrons exist in a narrow corona region at the same time, particles in the corona region are charged with different polarities in two modes of electric field migration charging and free diffusion charging, and the charged particles are mutually collided and coalesced through diffusion and coulomb effect; outside the corona area, negative ions and free electrons exist at the same time, particulate matters are charged with the same polarity in two modes of electric field migration charge and free diffusion charge, and part of charged particles are mutually collided and condensed through diffusion; the vertically through sound field promotes collision and coalescence among particles through the action of the sound field (homodromous agglomeration, sound-induced turbulence and sound wave wake effect); the vertically through sound field and the radially distributed electric field are mutually crossed, and the electric field migration effect and the acoustic wave homodromous aggregation effect are mutually coupled, so that the action area and the collision probability of the collision and aggregation of the particles are further increased, and the collision and aggregation of the particles are promoted; the condensed particulate matter and water vapor particles move to the plate electrode 16 under the action of electric field migration, and are collected by the water film to flush into the ash hopper 17 after reaching the water film electrode.

The inertial settling dust collection method comprises the following steps: after aerosol particles enter the inertial settling dust collection area 6, the aerosol outlet 7 and the airflow flow direction are arranged in a crossed manner, the particles enter the ash hopper 17 under the action of inertia and are collected by slurry in the ash hopper, the aerosol airflow turns 90 degrees to enter the aerosol outlet 7, a water curtain is formed at the aerosol outlet 7 under the action of water film scouring of the plate electrode 16, and the particles in the aerosol airflow are further removed through water droplet scouring.

The ash removal method for the water film plate electrode comprises the following steps: clean water source gets into basin 13 through the external water source access pipeline 12 of water membrane electrode, the top of basin 13 is close to wall department and opens and to have the overflow mouth can avoid the formation of water inlet surge interference water film better, rivers can spill over into baffle 11 and plate electrode 16's gap department when the water level in basin 13 surpasss the overflow mouth height, under baffle 11's effect, rivers form the one deck water film at plate electrode 16's surperficial top-down evenly distributed, when aerosol particulate matter and steam particle are by plate electrode 16 entrapment, mix the thick liquid under the combined action of water film scouring and flow field power and directly get into ash bucket 17 and outwards discharge through thick liquid export 18, thereby can not form the deposition on plate electrode 16 surface, avoid the secondary raise dust, the effect of gathering dust has been improved.

In addition, it should be noted that the above contents described in the present specification are only illustrations of the structure of the present invention. All equivalent changes made according to the structure, characteristics and principle of the utility model are included in the protection scope of the utility model. Various modifications, additions and substitutions by those skilled in the art may be made to the described embodiments without departing from the scope of the invention as defined in the accompanying claims.

Claims (8)

1. A fine particulate matter efficient removal device is characterized by comprising a pretreatment aerosol particulate matter inlet (1), an aerosol turbulent flow and sound wave pretreatment area (2), an aerosol particulate matter inlet (3), an aerosol turbulent flow and sound wave agglomeration area (4), an aerosol dust collection area (5), an inertial settling dust collection area (6), an aerosol outlet (7), a sound wave generator (8), an aerosol turbulent flow pretreatment aggregation ring (9), an aerosol turbulent flow aggregation ring (10), a baffle plate (11), a water film electrode external water source access pipeline (12), a water tank (13), a high-voltage negative direct current wire (14), a barbed wire electrode (15), a plate electrode (16), an ash hopper (17) and an ash hopper slurry outlet (18); the device for efficiently removing the fine particles is of a cylindrical structure, the aerosol turbulent flow and sound wave pretreatment area (2), the aerosol turbulent flow and sound wave agglomeration area (4), the aerosol dust collection area (5) and the inertial sedimentation dust collection area (6) are sequentially arranged inside the device for efficiently removing the fine particles from top to bottom, and the aerosol turbulent flow and sound wave pretreatment area (2), the aerosol turbulent flow and sound wave agglomeration area (4), the aerosol dust collection area (5) and the inertial sedimentation dust collection area (6) are sequentially communicated; the sound wave generator (8) is arranged above the aerosol turbulent flow and sound wave pretreatment region (2); the pretreatment aerosol particle inlet (1) is arranged at the top of the aerosol turbulent flow and sound wave pretreatment region (2), and an aerosol turbulent flow pretreatment aggregation ring (9) is arranged in the aerosol turbulent flow and sound wave pretreatment region (2); the aerosol particle inlet (3) is arranged at the top of the aerosol turbulent flow and sound wave agglomeration region (4), and an aerosol turbulent flow and sound wave agglomeration ring (10) is arranged in the aerosol turbulent flow and sound wave agglomeration region (4); a baffle (11), a water film electrode external water source access pipeline (12), a water tank (13), a high-voltage negative direct current wire (14), a barbed wire electrode (15) and a plate electrode (16) are arranged in the aerosol dust collection area (5), the water film electrode external water source access pipeline (12) is communicated with the water tank (13), a gap is formed between the baffle (11) and the plate electrode (16), the water tank (13) is communicated with the gap, the high-voltage negative direct current wire (14) is connected with the barbed wire electrode (15), and the barbed wire electrode (15) is arranged in the middle of the aerosol dust collection area (5); the aerosol outlet (7) and the ash bucket (17) are arranged at the bottom of the inertial settling dust collection area (6), a plate electrode (16) is also arranged in the inertial settling dust collection area (6), and a slurry outlet (18) is arranged at the bottom of the ash bucket (17).

2. The fine particle removing device with high efficiency as claimed in claim 1, wherein the inlet (1) for the pretreated aerosol particles is tangentially arranged at the top of the aerosol turbulent flow and sound wave pretreatment zone (2) and forms a cyclone-like cutter structure with tangential air inlet together with the aerosol turbulent flow pretreatment aggregation ring (9), and the inclination angle of the aerosol turbulent flow pretreatment aggregation ring (9) is 60 degrees.

3. The fine particle removing device as claimed in claim 1, wherein the aerosol particle inlet (3) is tangentially arranged at the top of the aerosol turbulence and sound wave agglomeration zone (4) and forms a tangential air inlet cyclone-like cutter structure together with the aerosol turbulence agglomeration ring (10), and the inclination angle of the aerosol turbulence agglomeration ring (10) is 60 °.

4. The fine particle high-efficiency removal device according to claim 1, wherein the pretreatment aerosol particle inlet (1) and the aerosol particle inlet (3) are symmetrically arranged on two sides of the fine particle high-efficiency removal device in a counterclockwise manner.

5. The fine particulate matter removing device according to claim 1, wherein the sound generator (8) is disposed at the top of the fine particulate matter removing device, and a vertically penetrating sound field is formed inside the fine particulate matter removing device.

6. The fine particle removal device as claimed in claim 1, wherein the plate electrode (16) is made of stainless steel material, and the plate electrode (16) is vertically arranged on the inner wall of the fine particle removal device to form a water film plate electrode structure.

7. The fine particle matter high-efficiency removal device according to claim 1, wherein the barbed wire electrode (15) is made of stainless steel, the barbed wire electrode (15) is vertically arranged in the center of the fine particle matter high-efficiency removal device, barbs are radially distributed on the electrode at equal intervals and are connected with the high-voltage negative direct current wire (14), and a radially distributed electric field is formed inside the fine particle matter high-efficiency removal device.

8. The fine particle removal device as claimed in claim 1, wherein the ash hopper (17) is arranged at the bottom of the fine particle removal device, and the surface of the ash hopper (17) is coated with a wear-resistant and corrosion-resistant sound absorption material.

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