CN114798175A - Ultralow-emission electric dust remover - Google Patents

Ultralow-emission electric dust remover Download PDF

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Publication number
CN114798175A
CN114798175A CN202210368983.9A CN202210368983A CN114798175A CN 114798175 A CN114798175 A CN 114798175A CN 202210368983 A CN202210368983 A CN 202210368983A CN 114798175 A CN114798175 A CN 114798175A
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CN
China
Prior art keywords
dust
ultra
wave form
low emission
electric field
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Pending
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CN202210368983.9A
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Chinese (zh)
Inventor
赵海宝
吕自强
胡小鑫
何毓忠
章干养
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Zhejiang Feida Environmental Science and Technology Co Ltd
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Zhejiang Feida Environmental Science and Technology Co Ltd
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Priority to CN202210368983.9A priority Critical patent/CN114798175A/en
Publication of CN114798175A publication Critical patent/CN114798175A/en
Pending legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C3/00—Separating dispersed particles from gases or vapour, e.g. air, by electrostatic effect
    • B03C3/02—Plant or installations having external electricity supply
    • B03C3/04—Plant or installations having external electricity supply dry type
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C3/00—Separating dispersed particles from gases or vapour, e.g. air, by electrostatic effect
    • B03C3/01—Pretreatment of the gases prior to electrostatic precipitation
    • B03C3/011—Prefiltering; Flow controlling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C3/00—Separating dispersed particles from gases or vapour, e.g. air, by electrostatic effect
    • B03C3/34—Constructional details or accessories or operation thereof
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C3/00—Separating dispersed particles from gases or vapour, e.g. air, by electrostatic effect
    • B03C3/34—Constructional details or accessories or operation thereof
    • B03C3/36—Controlling flow of gases or vapour
    • B03C3/361—Controlling flow of gases or vapour by static mechanical means, e.g. deflector
    • B03C3/363—Controlling flow of gases or vapour by static mechanical means, e.g. deflector located before the filter
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C3/00—Separating dispersed particles from gases or vapour, e.g. air, by electrostatic effect
    • B03C3/34—Constructional details or accessories or operation thereof
    • B03C3/40—Electrode constructions
    • B03C3/41—Ionising-electrodes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C2201/00—Details of magnetic or electrostatic separation
    • B03C2201/06—Ionising electrode being a needle

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  • Electrostatic Separation (AREA)

Abstract

The invention provides an ultra-low emission electric dust remover, which comprises an inlet end, a plurality of dust removing electric fields, an outlet end, a cathode system and an anode system, wherein the inlet end, the plurality of dust removing electric fields and the outlet end are sequentially arranged along the flue gas treatment direction, and ash hoppers arranged at the bottoms of the dust removing electric fields, wherein a pre-dust removing and flow equalizing device is arranged in the inlet end, the pre-dedusting flow equalizing device is provided with a waveform pre-dust-collecting mechanism, the waveform pre-dust-collecting mechanism comprises a plurality of groups of waveform sheets which are arranged at intervals along the width direction of an electric field, an air flow channel is arranged between every two adjacent waveform sheets, each waveform sheet comprises a V-shaped net sheet, and set up in the air current that V type net piece rear end outwards buckled and extend and disperse the net piece, the negative pole system is provided with at least one netted auxiliary electrode negative pole subassembly respectively at the front end and the tail end of each electric field, and this ultra-low emission electrostatic precipitator can reduce the energy consumption ratio, realizes flue gas particulate matter ultra-low emission.

Description

Ultralow-emission electric dust remover
[ technical field ] A method for producing a semiconductor device
The invention relates to the technical field of flue gas pollutant treatment, in particular to an electric dust remover with ultralow emission.
[ background of the invention ]
Along with the large-area implementation of ultra-low emission of coal-fired flue gas and industrial waste gas dust, the electric dust remover is applied in a large area due to the advantages of simple maintenance, low cost, no secondary pollution and the like.
The import loudspeaker of current electrostatic precipitator only plays the effect of connecting flue and electrostatic precipitator, and the space waste is great, and the centre generally sets up the porous guide plate of three-layer, only plays the effect that the flue gas flow equalizes and does not have the function of gathering dust. In addition, in order to ensure the ash discharging performance of an ash bucket of an electric dust collector, the existing dust removing system is generally provided with a heat insulation layer outside the ash bucket, and a plate type electric heater or a steam heater is arranged between the heat insulation layer and an ash bucket steel plate, so that the ash temperature is ensured to be higher than 90 ℃, and the flowability of ash is ensured. However, when the electric heating is adopted, the heating power of each ash bucket needs more than 20kW, the power consumption is high, and the service power rate of the whole electric dust collector is greatly improved. When steam heating is adopted, the stability of equipment such as a valve, high-pressure steam, drainage and the like is poor, the problems of steam leakage, drainage pollution and the like are easily caused, and the maintenance difficulty is high.
Meanwhile, under the policy of 'carbon peak reaching and carbon neutralization' in China in recent years, the large-scale development of clean energy has been encouraged in China, a coal-fired unit gradually changes from a dominant position to a direction of regulating and controlling a power supply in the energy industry, and meanwhile, the gradual starting and increasing of doped combustion renewable biomass energy also becomes a trend. The problems of reduced ash fluidity, reduced electric dust removal efficiency and the like are caused by biomass blending combustion and low specific load of 15%.
The prior art has the following defects:
1 at present, the airflow distribution device of the electric dust remover has no dust collection function, the space utilization rate is insufficient, a gravity settling chamber is generally required to be additionally arranged under the condition of high dust concentration of the electric dust remover, the cost is high, and an additional field is required.
2 the current electric precipitation import loudspeaker do not set up the different ash discharging angle according to the air velocity, occupation space is big to the import loudspeaker that ordinary steel sheet is constituteed is not enough to the gliding nature of ash, especially uses behind a period of time steel sheet corrosion or the glutinous ash, and the ash discharging performance is poor.
3 the cathode system of the existing electric dust collector generally has no dust collecting function, so that a large amount of positively charged dust in the smoke can not be effectively collected by the electric dust collector, and the concentration of the outlet dust can not be stably controlled at 10mg/m 3 The following.
[ summary of the invention ]
The invention aims to solve the problems in the prior art, and provides an ultra-low emission electric dust remover which can reduce the energy consumption ratio and realize ultra-low emission of smoke particles.
In order to achieve the purpose, the invention provides an ultra-low emission electric dust remover, which comprises an inlet end, a plurality of dust removing electric fields, an outlet end, a cathode system and an anode system which are arranged in each dust removing electric field, and an ash bucket arranged at the bottom of each dust removing electric field, wherein the inlet end, the plurality of dust removing electric fields and the outlet end are sequentially arranged along the smoke treatment direction, a pre-dust removing and flow equalizing device is arranged in the inlet end, a waveform pre-dust-collecting mechanism is arranged on the pre-dust-collecting and flow equalizing device, the waveform pre-dust-collecting mechanism comprises a plurality of groups of waveform sheets which are distributed at intervals along the width direction of the electric field, an air flow channel is arranged between every two adjacent waveform sheets, each waveform sheet comprises a V-shaped mesh and an air flow dispersing mesh which is arranged at the rear end of the V-shaped mesh and extends outwards in a bending manner, and at least one mesh auxiliary electrode cathode assembly is respectively arranged at the front end and the tail end of each electric field of the cathode system.
Preferably, the waveform sheet of the waveform pre-dust-collecting mechanism includes a plurality of left-side waveform sheets and right-side waveform sheets which are respectively arranged on the left side and the right side of the width direction of the inlet end, the airflow dispersing net sheet at the rear end of the left-side waveform sheet is arranged towards the left to disperse the airflow passing through the airflow channel towards the left, and the airflow dispersing net sheet at the rear end of the right-side waveform sheet is arranged towards the right to disperse the airflow passing through the airflow channel towards the right.
Preferably, the V-shaped mesh and the airflow dispersion mesh are prismatic mesh plates with the aperture ratio of 45% -50%.
Preferably, a rapping dust cleaning device is arranged on the waveform pre-dust collection mechanism.
Preferably, the pre-dedusting flow equalizing device comprises a first guide plate, a waveform pre-dust collecting mechanism and a second guide plate which are sequentially arranged along the flue gas treatment direction, and the first guide plate and the second guide plate are flat plates with a plurality of openings.
Preferably, the cathode assembly of the mesh-shaped auxiliary electrode comprises a middle framework, a metal mesh arranged on the middle framework, and auxiliary barbed wires arranged on two sides of the middle framework.
Preferably, the cathode system further comprises a cathode frame and a plurality of groups of barbed wires arranged on the cathode frame, wherein 1-2 mesh auxiliary electrode cathode assemblies are respectively arranged at the front end and the tail end of the cathode frame in the electric field, and the plurality of groups of barbed wires are arranged in the middle of the electric field.
Preferably, the inner surface of the ash bucket and/or the inner surface of the lower ash discharge surface of the inlet end are/is provided with a coating, and the coating adopts an organic silicon compound.
Preferably, the inlet end adopts a multi-section structure and comprises a first-stage slope section and a second-stage slope section which are sequentially arranged along the flue gas treatment direction, the ash discharging angle between the lower ash discharging surface of the first-stage slope section and the horizontal plane is 36-42 degrees, and the ash discharging angle between the lower ash discharging surface of the second-stage slope section and the horizontal plane is 45-48 degrees.
Preferably, the inlet end further comprises a lower horizontal section disposed at the inlet end, and the lower side surface of the lower horizontal section is a horizontal surface.
The invention has the beneficial effects that:
1. the energy consumption is lower than that of a conventional electric dust collector, and compared with the electric dust collector which is matched with a 1000MW coal-fired unit, the electric dust collector adopts ash bucket electric heating equipment, the power consumption can be reduced by about 600 kW.
2. The inlet end has the function of pre-dedusting, can efficiently collect positively charged dust in the flue gas, and the dust concentration at the outlet of the electric dust collector can be stably controlled at 10mg/m 3 No moisture is matched downstreamThe ultra-low emission of flue gas particles can be directly realized under the condition of the method desulfurization or the wet electric dust collector.
The features and advantages of the present invention will be described in detail by embodiments in conjunction with the accompanying drawings.
[ description of the drawings ]
FIG. 1 is a schematic view of the internal structure of an ultra-low emission electrostatic precipitator of the present invention;
FIG. 2 is a top view of the internal structure of the inlet end of an ultra low discharge electrical precipitator of the present invention;
FIG. 3 is an enlarged schematic view of the structure at A in FIG. 2;
FIG. 4 is an enlarged schematic view of the structure at B in FIG. 2;
FIG. 5 is a schematic diagram of the cathode system of an ultra low emission electric precipitator of the present invention;
FIG. 6 is a left side view of a mesh-type auxiliary electrode cathode assembly of an ultra-low emission electric precipitator of the present invention.
[ detailed description ] embodiments
Referring to fig. 1 to 6, the ultra-low emission electric dust collector of the present invention comprises an inlet end 10, a plurality of dust-removing electric fields 20, an outlet end 30, a cathode system 4 and an anode system (only one cathode system 4 in one electric field is shown in fig. 1) arranged in sequence along the flue gas treatment direction, and an ash bucket 40 arranged at the bottom of each dedusting electric field 20, a pre-dedusting flow equalizing device 100 is arranged in the inlet end 10, the pre-dedusting flow equalizing device 100 is provided with a waveform pre-dedusting mechanism 2, the waveform pre-dedusting mechanism 2 comprises a plurality of groups of waveform pieces 200 which are arranged at intervals along the width direction of an electric field, an air flow channel is arranged between every two adjacent waveform pieces 200, each waveform piece comprises a V-shaped net piece 21, and the airflow dispersing mesh 22 is arranged at the rear end of the V-shaped mesh 21 and extends outwards in a bending manner, and the cathode system 4 is respectively provided with at least one mesh-shaped auxiliary electrode cathode assembly 43 at the front end and the tail end of each electric field.
Further, refer to fig. 2 to 4, the wave form piece 200 of wave form dust collection mechanism 2 is including setting up respectively in a plurality of left side wave form piece 201, right side wave form piece 202 on entrance point 10 width direction left side, right side, the air current of left side wave form piece 201 rear end is dispersed net piece 22 and is set up towards a left side, makes the air current through airflow channel disperse net piece 22 and is set up towards a right side, makes the air current through airflow channel disperse towards a right side to reach the air current and disperse to both sides, it is even at the inside air current of electrostatic precipitator, in this embodiment, air current is dispersed net piece 22 and is the zigzag structure. The V-shaped mesh 21 and the airflow dispersion mesh 22 are both prismatic mesh plates with the aperture ratio of 45-50%. The V-shaped net sheet 21 is deposited on the V-shaped net sheet under the action of gravity by utilizing the action of inertia force of large particles under the action of air flow, so that dust and heavy flue gas are separated, and the effect of pre-dedusting is achieved.
Furthermore, a rapping dust-cleaning device is arranged on the waveform pre-dust-collecting mechanism 2, and mechanical rapping or electromagnetic rapping is adopted.
Further, referring to fig. 2, the pre-dedusting flow equalizing device 100 includes a first guide plate 1, a waveform pre-dust collecting mechanism 2, and a second guide plate 3, which are sequentially arranged along a flue gas treatment direction, where the first guide plate 1 and the second guide plate 3 are both flat plates with a plurality of openings.
Further, referring to fig. 6, the cathode assembly 43 of the mesh-type auxiliary electrode includes a middle frame 431, a metal mesh 432 mounted on the middle frame 431, and auxiliary barbed wires 433 mounted on both sides of the middle frame 431. The middle framework 431, the metal net 432 and the auxiliary barbed wire 433 are all integrally formed by pressing.
Further, referring to fig. 5, the cathode system 4 further includes a cathode frame 41 and a plurality of groups of barbed wires 42 installed on the cathode frame 41, wherein the cathode frame 41 is respectively provided with 1-2 mesh auxiliary electrode cathode assemblies 43 at the front end and the tail end of the electric field, and the plurality of groups of barbed wires 42 are arranged in the middle of the electric field.
Further, the inner surface of the ash hopper 40 and/or the inner surface of the lower ash discharge surface of the inlet end 10 are/is provided with a coating, and the coating is an organic silicon compound and has the characteristics of low surface tension, small viscosity-temperature coefficient, high and low temperature resistance, electrical insulation, oxidation resistance stability, flame retardancy, hydrophobicity, corrosion resistance, no toxicity, no odor and the like. Is not easy to stick ash, and can ensure smooth ash discharge under the condition of the ash temperature of 80-120 ℃. The ash bucket coating adopts the modes of electrostatic spraying and high-temperature melting and drying to ensure the smoothness of the surface. The anticorrosive performance of the coating improves the service life of the ash bucket, the electric insulation of the coating ensures that the charged dust charges falling to the ash bucket are not guided into the ground by the ash bucket, so that the dust in the ash bucket still keeps a certain electric quantity, the dust respectively carries negative electricity and the like poles repel each other, and the ash bucket keeps a certain loose property under the action of the charge repulsion force, so that the compactness of the ash is reduced, the flowability is increased, and the ash unloading performance is better.
Further, referring to fig. 1, the inlet end 10 adopts a multi-stage structure, and includes a first-stage slope section 11 and a second-stage slope section 12 which are sequentially arranged along the flue gas treatment direction, the ash discharge angle between the lower ash discharge surface of the first-stage slope section 11 and the horizontal plane is 36 to 42 °, because the flue gas flow velocity at this stage is high, the ash discharge can be ensured under the air flow flushing, the ash discharge angle between the lower ash discharge surface of the second-stage slope section 12 and the horizontal plane is 45 to 48 °, the flue gas flow velocity at this stage is low, and more ash appears under the action of the waveform pre-dust collection mechanism 2 and needs to be discharged, so that the stage needs a sufficient ash discharge angle. In this embodiment, the inlet end 10 further includes a lower horizontal section 13 disposed at the inlet end, the lower side surface of the lower horizontal section 13 is a horizontal surface, the horizontal section is disposed under the condition that the length of the inlet end 10 along the flue gas direction is shorter, so that the ash discharging angles of the first-stage slope section 11 and the second-stage slope section 12 can be ensured, and the lower horizontal section 13 is not disposed when the length of the inlet end 10 along the flue gas direction is sufficiently long. The inlet end 10 adopts a three-section type horn, and fully borrows the ash discharge performance under different air velocities, thereby reducing the whole size of the inlet end, reducing the occupied space, reducing the weight, improving the flow guiding effect and reducing the cost.
The above embodiments are illustrative of the present invention, and are not intended to limit the present invention, and any simple modifications of the present invention are within the scope of the present invention.

Claims (10)

1. The utility model provides an ultralow emission electrostatic precipitator, includes entrance point (10), a plurality of dust removal electric field (20), exit end (30) that set gradually along the flue gas treatment direction, sets up negative pole system (4) and the positive pole system in each dust removal electric field (20) to and set up in ash bucket (40) of each dust removal electric field (20) bottom, its characterized in that: entrance point (10) inside dust removal flow straightener (100) in advance that is equipped with, it gathers dust mechanism (2) in advance to be equipped with the wave form on flow straightener (100) in advance, wave form gathers dust mechanism (2) in advance and includes wave form piece (200) that a plurality of groups arranged along electric field width direction interval, has airflow channel between adjacent wave form piece (200), and each wave form piece includes V type net piece (21) to and set up in the air current that V type net piece (21) rear end outside bending type extends and disperse net piece (22), cathode system (4) are provided with at least one netted auxiliary electrode negative pole subassembly (43) respectively at the front end and the tail end of each electric field.
2. The ultra-low emission electric dust collector of claim 1, wherein: wave form piece (200) of wave form pre-dust-collection mechanism (2) including set up respectively in a plurality of left side wave form piece (201), right side wave form piece (202) on entrance point (10) width direction left side, right side, the air current of left side wave form piece (201) rear end is dispersed net piece (22) and is set up towards a left side, makes the air current through airflow channel disperse towards a left side, the air current of right side wave form piece (202) rear end is dispersed net piece (22) and is set up towards a right side, makes the air current through airflow channel disperse towards a right side.
3. The ultra-low emission electric precipitator of claim 1, wherein: the V-shaped mesh (21) and the airflow dispersion mesh (22) are both prismatic mesh plates with the aperture ratio of 45-50%.
4. The ultra-low emission electric precipitator of claim 1, wherein: and a rapping dust cleaning device is arranged on the waveform pre-dust collection mechanism (2).
5. An ultra-low emission electric precipitator according to any of claims 1 to 4, wherein: dust removal flow straightener (100) in advance includes first guide plate (1), wave form dust collection mechanism (2), second guide plate (3) in advance that set gradually along the flue gas treatment direction, first guide plate (1), second guide plate (3) are the flat board that has a plurality of trompils.
6. The ultra-low emission electric precipitator of claim 1, wherein: the mesh-shaped auxiliary electrode cathode assembly (43) comprises a middle framework (431), a metal mesh (432) arranged on the middle framework (431), and auxiliary barbed wires (433) arranged on two sides of the middle framework (431).
7. An ultra-low emission electrostatic precipitator as claimed in claim 1 or 6, wherein: the cathode system (4) further comprises a cathode frame (41) and a plurality of groups of barbed wires (42) arranged on the cathode frame (41), wherein 1-2 mesh auxiliary electrode cathode assemblies (43) are respectively arranged at the front end and the tail end of the cathode frame (41) of the electric field, and the plurality of groups of barbed wires (42) are arranged in the middle of the electric field.
8. The ultra-low emission electric precipitator of claim 1, wherein: the inner surface of the ash bucket (40) and/or the inner surface of the ash discharging surface at the lower side of the inlet end (10) are/is provided with coatings, and the coatings adopt organic silicon compounds.
9. The ultra-low emission electric precipitator of claim 1, wherein: the inlet end (10) adopts a multi-section structure and comprises a first-stage slope section (11) and a second-stage slope section (12) which are sequentially arranged along the flue gas treatment direction, wherein the ash discharging angle between the lower side ash discharging surface of the first-stage slope section (11) and the horizontal plane is 36-42 degrees, and the ash discharging angle between the lower side ash discharging surface of the second-stage slope section (12) and the horizontal plane is 45-48 degrees.
10. An ultra-low emission electric precipitator as defined in claim 9, wherein: the inlet end (10) further comprises a lower horizontal section (13) arranged at the inlet end, and the lower side surface of the lower horizontal section (13) is a horizontal plane.
CN202210368983.9A 2022-04-08 2022-04-08 Ultralow-emission electric dust remover Pending CN114798175A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202210368983.9A CN114798175A (en) 2022-04-08 2022-04-08 Ultralow-emission electric dust remover

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202210368983.9A CN114798175A (en) 2022-04-08 2022-04-08 Ultralow-emission electric dust remover

Publications (1)

Publication Number Publication Date
CN114798175A true CN114798175A (en) 2022-07-29

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ID=82534572

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202210368983.9A Pending CN114798175A (en) 2022-04-08 2022-04-08 Ultralow-emission electric dust remover

Country Status (1)

Country Link
CN (1) CN114798175A (en)

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