CN106582165B - A kind of friction electrical dust collector device, dust pelletizing system and dust removal method - Google Patents

A kind of friction electrical dust collector device, dust pelletizing system and dust removal method Download PDF

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Publication number
CN106582165B
CN106582165B CN201610339344.4A CN201610339344A CN106582165B CN 106582165 B CN106582165 B CN 106582165B CN 201610339344 A CN201610339344 A CN 201610339344A CN 106582165 B CN106582165 B CN 106582165B
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dust
internal layer
gas
layer shell
air inlet
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CN106582165A (en
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韩昌报
王中林
蒋涛
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Beijing Kona Qing Polytron Technologies Inc
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Beijing Kona Qing Polytron Technologies Inc
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D50/00Combinations of devices for separating particles from gases or vapours

Abstract

The invention discloses a kind of friction electrical dust collector device, dust pelletizing system and dust removal method, dust-extraction unit includes the outer casing and internal layer shell of jacket structure, wherein outer casing is sealing structure, and leakage fluid dram is arranged in bottom;Several gas ports are provided on internal layer shell, electrode is arranged in internal layer shell inner wall;Several cleaner units being arranged in internal layer shell, partly or completely cleaner unit surfacing and the material of the electrode have different electronegativity;Spray head introduces outside outer casing, is switched and is controlled by feed liquor, for cleaning the cleaner unit or electrode;Internal layer shell rotation makes cleaner unit collide with each other to form electrostatic field with electrode, and the gas entered from air inlet passes sequentially through gap, dust removing units and gas outlet between the dust removing units, internal layer shell and outer casing, is filtered to the particulate matter in gas.Spray head can automatically in dust-extraction unit cleaner unit and electrode clean, extend the service life of device.

Description

A kind of friction electrical dust collector device, dust pelletizing system and dust removal method
Technical field
The present invention relates to air purification fields, and in particular, to a kind of dust-extraction unit of application friction electric field, dust pelletizing system And dust removal method.
Background technology
Currently, a large amount of dust substance is generated in various industrial process, such as in factory floor, burning waste gas;In life, Haze etc. caused by the discharges such as a large amount of tail gas, mineral oil combustion.These particulate matters suspend in air, are good for the mankind Health, life and production cause serious influence.
Currently, industrial dedusting method mainly has electrostatic precipitation, Bed Filtration dedusting, worry bag dedusting etc..But it various removes Dust collecting method has a series of problem, as electrostatic dust collection equipment is complicated and expensive, granular bed filters back pressure is larger, filter bag Deashing trouble etc. when dedusting.
Invention content
It, can be to the micron, secondary micro- in gas the object of the present invention is to provide a kind of friction electrical dust collector device of lower resistance The other particulate matter of rice, nano-scale carries out efficient, fast filtering, solves the problems, such as the absorption and filtering of particulate in air;Together When dust-extraction unit can be regenerated in use for some time, prolong the service life.
To achieve the goals above, the present invention provides a kind of friction electrical dust collector device, including:
The outer casing and internal layer shell of jacket structure, wherein outer casing is sealing structure, and drain is arranged in bottom Mouthful;Several gas ports are provided on internal layer shell, electrode is arranged in internal layer shell inner wall;
Several cleaner units being arranged in the internal layer shell, partly or completely cleaner unit surfacing and institute The material for stating electrode has different electronegativity;
Air inlet and gas outlet are connected to internal layer shell by outer casing;
Spray head introduces outside the outer casing, is switched and is controlled by feed liquor, for cleaning the cleaner unit or electricity Pole;
The internal layer shell rotation makes the cleaner unit collide with each other to form electrostatic field with the electrode, from the air inlet Mouthful gas entered pass sequentially through gap between the dust removing units, the internal layer shell and outer casing, dust removing units and Gas outlet.
Preferably, the spray head is arranged in the gap between the top and internal layer shell of the outer casing, described Spray head is arranged along the rotor shaft direction that the internal layer shell rotates.
Preferably, further include air inlet gas-guide tube, the internal layer shell is inserted into from the air inlet, the air inlet gas-guide tube Multiple through-holes are provided on tube wall, the air inlet gas-guide tube is buried in the cleaner unit.
Preferably, the spray head stretches into the air inlet gas-guide tube from the air inlet.
Preferably, further include outlet gas-guide tube, the internal layer shell, the outlet air guide are inserted into from the rotation gas outlet Multiple through-holes are provided on the tube wall of pipe;The outlet gas-guide tube is buried in cleaner unit.
Preferably, the air inlet, outer casing and gas outlet are fixed;The air inlet gas-guide tube, internal layer shell and Outlet gas-guide tube rotates synchronously;
Alternatively, the air inlet, outer casing, air inlet gas-guide tube, outlet gas-guide tube and gas outlet are fixed;In described Layer housing into rotation.
Preferably, the air inlet and gas outlet rotate synchronously to form rotation air inlet and rotate out with the internal layer shell Fixed air inlet and fixed gas outlet is respectively set on the rotation air inlet and rotation gas outlet, respectively by close in gas port Envelope bearing seal connects and ensures to rotate air inlet and rotate gas outlet and can rotate.
Preferably, in the section of the rotor shaft direction of internal layer shell rotation, the internal layer shell and outer casing it Between gap range area be not less than the air inlet area.
Preferably, the outer casing and internal layer shell are tubular structure, and the air inlet and gas outlet are arranged in institute State the both ends of internal layer shell.
Preferably, the tubular of the internal layer shell axially symmetric structure, the symmetry axis of internal layer shell are the shaft of the rotation, The shaft is horizontally disposed.
Preferably, several cleaner units include the cleaner unit for having two different electronegativity, and there are two types of tools The quantitative proportion of the cleaner unit of different electronegativity ranging from 0:1—1:1;The particle size range of cleaner unit is 0.5mm- 10mm。
Preferably, the electrode of multiple mutual insulatings is provided on the inner wall of the internal layer shell;The electrode is length Bar shaped, rectangular, round, triangle and/or polygon pellet electrode;Spacing between adjacent electrode can be 0.1mm-1cm.
Preferably, the internal layer shell uses insulating materials.
Preferably, the shape of the gas port is circular hole, square hole, slotted hole or gap structure, and aperture or gap width are small In the grain size of cleaner unit.
Preferably, it feed liquor switch and controls the draining switch of the leakage fluid dram and is opened using electromagnetic valve switch, pneumatic operated valve Pass or relay switch.
Preferably, in the internal layer shell rotation process, the packed height of the cleaner unit be consistently higher than it is described into Gas port and gas outlet.
The present invention also provides a kind of dust pelletizing system, including multiple dust-extraction units described in any one of the above embodiments, the gas according to It is secondary by multiple dust-extraction units, alternatively, the gas is divided into multiple branches simultaneously by multiple dust-extraction units.
The present invention also provides a kind of friction electro dust removing methods, using dust-extraction unit described in any one of the above embodiments, the dust suction Unit and the electrode collide with each other to form electrostatic field, and gas is cleaned by the dust-extraction unit.
Through the above technical solutions, the beneficial effects of the invention are as follows:
Friction electrical dust collector device provided by the invention uses the outer casing and internal layer shell of jacket structure, wherein outer layer Shell is sealing structure, and several gas ports are provided on internal layer shell, and electrode is arranged in internal layer shell inner wall;The internal layer shell turns The dynamic several cleaner units made to be arranged in internal layer shell collide with each other to form electrostatic field with electrode, the gas entered from air inlet Gap, dust removing units and the gas outlet between dust removing units, internal layer shell and outer casing are passed sequentially through, in electrostatic adsorption It is realized to particulate matter in gas under the physical filtering effect (such as inertia, collision, interception, gravitational settling mechanism) of cleaner unit Effective filtering.The setting of internal layer shell and outer casing makes gas more smoothly pass over dust-extraction unit, reduces air-flow resistance Power.
Meanwhile spray head is set in a device, it can be after dust exhaust apparatus works a period of time, to cleaner unit and electrode Automatically it is cleaned, makes dust-extraction unit that there is regeneration function, can prolong the service life, reduce maintenance cost
In addition, dust-extraction unit provided by the invention does not need high-voltage electricity, not only low energy consumption but also not will produce ozone etc. two Secondary pollution can use in environment on a large scale indoors.
Description of the drawings
Attached drawing is to be used to provide further understanding of the present invention, an and part for constitution instruction, with following tool Body embodiment is used to explain the present invention together, but is not construed as limiting the invention.In the accompanying drawings:
Fig. 1 is the structural schematic diagram in the friction electrical dust collector device section of one embodiment of the invention;
Fig. 2 is the structural schematic diagram of air inlet gas-guide tube in dust-extraction unit;
Fig. 3 is the structural schematic diagram in the friction electrical dust collector device section of another embodiment of the present invention.
Specific implementation mode
The specific implementation mode of the present invention is described in detail below in conjunction with attached drawing.It should be understood that this place is retouched The specific implementation mode stated is merely to illustrate and explain the present invention, and is not intended to restrict the invention.
In the present invention, in the absence of explanation to the contrary, the noun of locality used such as " upper and lower " refers to the side in diagram To;"inner" refers to towards inside corresponding construction, and "outside" refers to towards outside corresponding construction.
Fig. 1 is the structural schematic diagram in friction electrical dust collector device section provided by the invention, including:The outer shell of jacket structure Body 7 and internal layer shell 13, wherein outer casing 7 is sealing structure, and leakage fluid dram 16 is arranged in bottom, is controlled by draining switch 15 The break-make of leakage fluid dram;Several gas ports 11 are provided on internal layer shell 13, supplied gas flows between internal layer shell and outer casing Dynamic, electrode 12 is arranged in 13 inner wall of internal layer shell;Several cleaner units 10 being arranged in internal layer shell 13, partly or completely 10 surfacing of cleaner unit has different electronegativity from the material of electrode 12;Air inlet 6 and gas outlet 6 ', pass through outer shell Body 7 is connected to internal layer shell 13;Spray head 9 introduces outside outer casing 7, is controlled by feed liquor switch 4, for cleaning dust suction list Member 10 or electrode 12.The rotation of internal layer shell 13 makes cleaner unit 10 collide with each other to form electrostatic field with electrode 12, from air inlet 6 The gas of entrance passes sequentially through gap, dust removing units 10 and outlet between dust removing units 10, internal layer shell 13 and outer casing 7 Mouthfuls 6 ', the dust particles etc. in gas are removed, and achieve the purpose that purification gas.
It can also include air inlet gas-guide tube 9 in dust-extraction unit shown in FIG. 1, internal layer shell 13 is inserted into from air inlet 6, into Multiple through-holes (as shown in Figure 2) are provided on the tube wall of conductance tracheae 9, air inlet gas-guide tube is buried in the cleaner unit, spray Leaching head 8 extends into conductance tracheae 9 from air inlet 6.Air inlet gas-guide tube 9 is set and easier enters internal layer shell 13 for gas, The diameter of through-hole is less than the size of cleaner unit 10.In other embodiments, above-mentioned lead can also be inserted into gas outlet 6 ' Tracheae is buried in as outlet gas-guide tube 9 ', outlet gas-guide tube in cleaner unit.
In figure 3, spray head 8 can be arranged between the top of outer casing 7, outer casing 7 and internal layer shell 13 In gap.The rotor shaft direction that spray head 8 can be rotated along internal layer shell 13 is arranged, and can also bend setting, can increase spray The length of head is drenched to improve cleaning efficiency.
As shown in Figure 1, when carrying the gas of particulate matter by friction electrical dust collector device, a large amount of particulate matter is attracted to The surface of electrode 12, cleaner unit 10 inside internal layer shell 13.Cleaning liquor pipe 3 is kept with the cleaning solution with certain pressure Unicom, and prevent it from flowing to spray head by feed liquor switch 4;In dust-extraction unit after particulate matter adsorption saturation, 4 He of feed liquor switch Draining switch 15 automatically opens, cleaning solution under high pressure effect by spray head 8, by 9 through-hole of porous gas-guide tube (or internal layer The gas port 11 of shell) cleaner unit 10 (can be the mixture of medium, metallic particles) and metal electrode 12 are uniformly sprayed to, so Outer casing 7 is flowed to by the gas port of internal layer shell 11 afterwards, is discharged through leakage fluid dram 16 along inside outer casing 7.
In the present invention, outer casing maintains static dynamic, can be supported on holder 1.
It can also include two gas-guide tubes, be exactly while including air inlet gas-guide tube and outlet gas-guide tube, two gas-guide tubes point It is not inserted into internal layer shell 13 from air inlet 6 and gas outlet 6 ', length of the gas-guide tube in internal layer shell 13 is grown less than internal layer shell 8 The half of degree.
In an embodiment of the present invention, the rotor shaft direction that gas-guide tube can be rotated along internal layer shell 8 is arranged.It is preferred that will lead Tracheae is buried in cleaner unit 9, makes the dustproof function that cleaner unit is had to pass through in gas flow.
In the case of air inlet gas-guide tube and outlet gas-guide tube is not arranged in dust-extraction unit, cleaner unit is from interior in order to prevent It is leaked out in layer shell, strainer can be respectively set in air inlet and gas outlet, the mesh size of strainer is less than the ruler of cleaner unit It is very little.This belongs to the ordinary skill in the art, not as limiting the scope of the invention.
As shown in Figure 1, when air-flow is after air inlet 6 enters air inlet gas-guide tube 9, air-flow can be along the hole on gas-guide tube Through the gap between cleaner unit particle upwards, three kinds of approach flowings such as pass downwardly through gas port, advance through gap, in Fig. 1 Arrow illustrates the direction of the flowing of air-flow.Air inlet gas-guide tube 9 and internal layer shell 13 presence can effectively play gas Body shunting function, shunting principle are:Air-flow flows through after the hole of multiple air inlet gas-guide tubes between graininess cleaner unit Gap, after the gas port 11 for passing through inner insulating layer shell 13, further along the gap between internal layer shell 13 and outer casing 7 to another One end flow, then further along the gas port 11 of 13 other end of inner insulating layer shell by cleaner unit 10 and it is porous go out conductance It is discharged after tracheae 9 '.
The surface of cleaner unit 10 in internal layer shell 13 can be the particle of single substance, such as spherical medium material Material, or with two different electronegativity material, i.e., partly or completely the material on cleaner unit surface with electricity It may include several media units and conductive unit that the material of pole 12, which has in different electronegativity, such as several cleaner units, Wherein the material on media units surface is dielectric material, and the material on conductive unit surface is the conductive materials such as metal.In other realities Other particulate matters or filler can also be added by applying in example.Between cleaner unit 10, between cleaner unit 10 and electrode 12 mutually Collision forms charge on surface.
Media units are mixed with conductive unit and are used as cleaner unit 9, the positive and negative electric field between cleaner unit 9 can be made Distribution is more uniform, improves filter efficiency.
By taking the material on the media units surface in cleaner unit 10 has high electronegativity as an example, illustrate the work of dust-extraction unit Principle.
In the dust-extraction unit of Fig. 1, internal layer shell 13 and outer casing 7 are cylindrical shape, are rotated around horizontally disposed shaft When, due to gravity, media units and electrode 12 (or conductive unit) mutually collision, friction make media units surface produce A large amount of negative electrical charge is given birth to, a large amount of positive charges are left on conductive unit surface and electrode 12.Therefore, media units and electrode 12 it Between, between media units and conductive unit form very high electric field.
Dust particles in gas usually carry certain charge in forming process, thus total particle all shows one Fixed charging property.After these charged particles enter dust-extraction unit, due between media units and electrode 12, media units Very high electric field is formed between conductive unit, therefore, electric field action lower band positive particles will be by the electricity on inner layer case body wall Pole 12 and conductive unit absorption;Electronegative particle is adsorbed by media units.
In addition, when the air-flow containing dust or particulate matter passes through device, there is also physical adsorption process, the dust in gas Particle and cleaner unit 10 (including media units and conductive unit) mutually collision, scattering, form physical absorption.Physical absorption machine Reason includes inertial collision, interception, Blang's diffusion, gravitational settling etc..
Therefore, when the gas with dust passes through dust-extraction unit, can by Electrostatic Absorption and physical adsorption process by except Dirt device purifies.
The surface of media units is contacted with electrode 12 (or conductive unit) generates surface charge, therefore it may only be necessary to meet Jie The surfacing of matter unit has the condition of different electronegativity from the material of electrode 12 (or conductive unit).When several dust suctions When unit includes two different electronegativity units, there are two types of the quantitative proportions of the media particle of different electronegativity for tool ranging from 0:1—1:1.Such as the quantitative proportion between conductive unit and media units ranging from 0:1—1:1.
The material on media units surface can be insulator, and the electronegativity of media units surfacing is higher than electrode material Electronegativity or electronegativity less than electrode material.The material of high electronegativity can be macromolecule (polymer) such as PTFE, FEP Deng material such as quartz, glass, the silicate material of low electronegativity.
Common conductive material may be incorporated for making electrode or conductive unit, it is preferred to use metal or alloy material Material, including the arbitrary proportion alloy of one of aluminium, copper, Jin Heyin or more persons.
Multiple pellet electrodes 12 can be set on 13 inner wall of internal layer shell, and mutual insulating between multiple electrodes 12 can be with Scattering device is on 13 inner wall of internal layer shell, as shown in fig. 1.Electrode 12 can be strip, rectangular, round, triangle and/ Or polygon pellet electrode.Multiple electrodes 12 can form electrod-array, and the spacing between adjacent electrode can be 0.1mm- 1cm.The electric field of more uniform stabilization can be formed in a device.
The shape and size of gas port 11 on internal layer shell 12 are not particularly limited, and the shape of gas port 11 can be circle Hole, square hole, slotted hole or gap structure, aperture or gap width are less than the grain size of cleaner unit.
In dust-extraction unit shown in Fig. 1, in 13 rotation process of internal layer shell, preferably cleaner unit packed height is always Higher than air inlet 6 and gas outlet 6 ', make gas must be by the cleaner unit 10 in internal layer shell 13, dust in gas can be with By cleaner unit adsorption.
There are certain gap between internal layer shell 8 and outer casing 11, the void size ranging from internal layer shell In the section of the rotor shaft direction of 13 rotations, the area of the gap range between internal layer shell 13 and outer casing 7 is not less than air inlet The area of mouth 6, such design, it is ensured that the resistance of air-flow in a device is smaller.
The structure of internal layer shell 8 and outer casing 11 can be cylinder-like structure, or outside other tubular structures Shell, can be the tubular of axially symmetric structure, and shaft is the symmetry axis of internal layer shell.The shaft is preferably horizontal rotating shaft.Tubular The section of structural housing can be circular ring shape, oval ring or polygon.Preferably, air inlet and gas outlet are separately positioned on At the shaft at the internal layer shell both ends, as shown in Figure 1.
Preferably, from air inlet 6 be inserted into air inlet gas-guide tube 9 and from gas outlet 6 ' be inserted into 9 ' end of outlet gas-guide tube it Between distance be more than or equal to packed height of the cleaner unit above air inlet gas-guide tube 9 or outlet gas-guide tube 9 '.Cleaner unit Packed height refers to cleaner unit in the vertical direction and accumulates the spatial altitude occupied in the present invention.
The shape of cleaner unit 10 can be spherical, either polyhedron can be hollow or full particle to elliposoidal.It inhales Dirt unit 10 can generally homogeneous material, or superficial layer coats the nucleocapsid of kernel, for example, insulating materials The nucleocapsid ball of superficial layer coated ceramic material kernel is as the media units in cleaner unit.
The particle size range of cleaner unit 10 (may include media units and conductive unit) is 0.5mm -10mm, all suctions The diameter of dirt unit 10 can unanimously can not also be consistent, can be mutually mixed by different-diameter.
In order to increase the collision of cleaner unit 10 and electrode 12, including cleaner unit (including media units and conductive unit) Filling in layer shell 13 need not expire very much, especially for cylindrical case, in 13 rotation process of internal layer shell, cleaner unit Filling range is consistently higher than air inlet gas-guide tube 9 and outlet gas-guide tube 9 ', is exactly submerged in air inlet gas-guide tube and outlet gas-guide tube In cleaner unit.
Not limiting (especially media units) surface of cleaner unit 10 and electrode 12 in the dust-extraction unit of the present invention must be Hard material can also select flexible material, the hardness of material to have no effect on contact friction effect between the two.
The material of internal layer shell 13 can be all insulation such as high molecular material, bakelite, the ceramics of insulation, and preferably machinery is strong Spend high insulating materials.The material that outer casing 7 uses is not specially limited, and is easy to moulding material with some strength With.
The present invention dust-extraction unit in, due to outer casing 7 could be provided as it is fixed, air inlet, outlet Mouthful, air inlet gas-guide tube and outlet gas-guide tube whether rotate with internal layer shell, can be selected according to specific design of device, It can have a variety of structures design:
Air inlet 6, outer casing 7 and gas outlet 6 ' could be provided as fixed;Air inlet gas-guide tube 9, internal layer shell 13 It is rotated synchronously with outlet gas-guide tube 9 '.
Air inlet 6, outer casing 7, air inlet gas-guide tube 9, outlet gas-guide tube 9 ' and gas outlet 6 ' can be fixed, internal layer Shell 13 rotates.
Air inlet 6 and gas outlet 6 ' are rotated synchronously with internal layer shell 13 forms rotation air inlet and rotation gas outlet, in order to Gas is easily accessed into gas dust-removing device, fixed air inlet can be respectively set on rotation air inlet and rotation gas outlet 5 and fixed gas outlet 5 ', it is tightly connected respectively by sealing bearing 2 and ensures to rotate air inlet and rotate gas outlet and can turn It is dynamic.The cleaning liquor pipe 3 of spray head can pass through fixed air inlet 5 to enter dust-extraction unit, can also outer casing 7 other Case body 7 is accessed at position.In use, the extension of rotation air inlet and rotation gas outlet is arranged as shaft in holder 1 Or on outer casing, rotated together with internal layer shell.
It should be pointed out that should all include the driving dress of driving internal layer shell rotation in all embodiments of the present invention It sets, is not shown in the accompanying drawings.
Various types switch may be used in feed liquor switch 4, draining switch 15, such as electromagnetic valve switch, pneumatic threshold switch, relay Device switch etc..
Electrode 12, cleaner unit 10 surface can be carried out the surface of roughening treatment, such as surface carry out nanometer Graphical treatment, to increase surface area, to improve the physical absorption of dust-extraction unit and the efficiency of Electrostatic Absorption.
May include multiple above-mentioned dust-extraction units, by multiple dedustings correspondingly, the present invention also provides a kind of dust pelletizing system Device is in series or in parallel, and gas passes sequentially through multiple dust-extraction units (multiple dust-extraction unit series connection), alternatively, the gas It is divided into multiple branches simultaneously by multiple dust-extraction units (multiple dust-extraction units are in parallel).
Dust-extraction unit provided by the invention can carry out the micron in gas, secondary micron, the other particulate matter of nano-scale Efficiently, fast filtering, at the same it is smaller to the resistance of air-flow.It can be used for industrial dust gas-solid separating device and its system, it can be with It is used alone, can also be used with other duster parallels, realize the qualified discharge of industrial process dust.
The preferred embodiment of the present invention is described in detail above in association with attached drawing, still, the present invention is not limited to above-mentioned realities The detail in mode is applied, within the scope of the technical concept of the present invention, a variety of letters can be carried out to technical scheme of the present invention Monotropic type, these simple variants all belong to the scope of protection of the present invention.For example, the variation of the shape, material and size of each component.
It is further to note that specific technical features described in the above specific embodiments, in not lance In the case of shield, it can be combined by any suitable means.In order to avoid unnecessary repetition, the present invention to it is various can The combination of energy no longer separately illustrates.In addition, arbitrary group can also be carried out between a variety of different embodiments of the present invention It closes, as long as it does not violate the idea of the present invention, it should also be regarded as the disclosure of the present invention.

Claims (18)

1. a kind of friction electrical dust collector device, which is characterized in that including:
The outer casing and internal layer shell of jacket structure, wherein outer casing is sealing structure, and leakage fluid dram is arranged in bottom;It is interior Several gas ports are provided on layer shell, electrode is arranged in internal layer shell inner wall;
Several cleaner units being arranged in the internal layer shell, partly or completely cleaner unit surfacing and the electricity The material of pole has different electronegativity;
Air inlet and gas outlet are connected to internal layer shell by outer casing;
Spray head introduces outside the outer casing, is switched and is controlled by feed liquor, for cleaning the cleaner unit or electrode;
Internal layer shell rotation makes the cleaner unit collide with each other to form electrostatic field with the electrode, from the air inlet into The gas entered passes sequentially through gap, dust removing units and the outlet between the cleaner unit, the internal layer shell and outer casing Mouthful.
2. dust-extraction unit according to claim 1, which is characterized in that the spray head is arranged on the top of the outer casing In gap between portion and internal layer shell, the spray head is arranged along the rotor shaft direction that the internal layer shell rotates.
3. dust-extraction unit according to claim 1, which is characterized in that further include air inlet gas-guide tube, inserted from the air inlet Enter the internal layer shell, multiple through-holes are provided on the tube wall of the air inlet gas-guide tube, the air inlet gas-guide tube is buried in described In cleaner unit.
4. dust-extraction unit according to claim 3, which is characterized in that the spray head from the air inlet stretch into it is described into Conductance tracheae.
5. dust-extraction unit according to claim 3 or 4, which is characterized in that further include outlet gas-guide tube, from the gas outlet It is inserted into the internal layer shell, multiple through-holes are provided on the tube wall of the outlet gas-guide tube;The outlet gas-guide tube is buried in suction In dirt unit.
6. dust-extraction unit according to claim 5, which is characterized in that the air inlet, outer casing and gas outlet are fixed It is motionless;The air inlet gas-guide tube, internal layer shell and outlet gas-guide tube rotate synchronously;
Alternatively, the air inlet, outer casing, air inlet gas-guide tube, outlet gas-guide tube and gas outlet are fixed;The inner layer case Body rotates.
7. dust-extraction unit according to claim 1, which is characterized in that the air inlet and gas outlet and the internal layer shell It rotates synchronously and forms rotation air inlet and rotation gas outlet, fixation is respectively set on the rotation air inlet and rotation gas outlet Air inlet and fixed gas outlet, being connected respectively by sealing bearing seal and ensure to rotate air inlet and rotate gas outlet can be with Rotation.
8. dust-extraction unit according to claim 2, which is characterized in that in section of the rotor shaft direction of internal layer shell rotation In face, the area of the gap range between the internal layer shell and outer casing is not less than the area of the air inlet.
9. dust-extraction unit according to claim 8, which is characterized in that the outer casing and internal layer shell are tubular knot Structure, the air inlet and gas outlet are arranged at the both ends of the internal layer shell.
10. according to the dust-extraction unit described in claim 9, which is characterized in that the tubular of the internal layer shell axially symmetric structure, The symmetry axis of internal layer shell is the shaft of the rotation, and the shaft is horizontally disposed.
11. dust-extraction unit according to claim 1, which is characterized in that several cleaner units include there are two types of tools The cleaner unit of different electronegativity, the quantitative proportion ranging from 0 of the cleaner unit with two different electronegativity:1—1: 1;The particle size range of cleaner unit is 0.5mm -10mm.
12. dust-extraction unit according to claim 1, which is characterized in that be provided on the inner wall of the internal layer shell multiple The electrode of mutual insulating;The electrode be strip, circle and/or polygon pellet electrode;Between adjacent electrode Spacing can be 0.1mm-1cm.
13. dust-extraction unit according to claim 1, which is characterized in that the internal layer shell uses insulating materials.
14. dust-extraction unit according to claim 1, which is characterized in that the shape of the gas port is circular hole, square hole, length Circular hole or gap structure, aperture or gap width are less than the grain size of cleaner unit.
15. dust-extraction unit according to claim 1, which is characterized in that the feed liquor switchs and control the leakage fluid dram Draining switch uses electromagnetic valve switch, pneumatic threshold switch or relay switch.
16. dust-extraction unit according to claim 1, which is characterized in that in the internal layer shell rotation process, the suction The packed height of dirt unit is consistently higher than the air inlet and gas outlet.
17. a kind of dust pelletizing system, which is characterized in that including the dust-extraction unit described in any one of multiple claim 1-16, institute It states gas and passes sequentially through multiple dust-extraction units, alternatively, the gas is divided into multiple branches simultaneously by multiple dedustings Device.
18. a kind of friction electro dust removing method, which is characterized in that the dust-extraction unit described in any one of claim 1-16 is used, The cleaner unit and the electrode collide with each other to form electrostatic field, and gas is cleaned by the dust-extraction unit.
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WO2017198216A1 (en) * 2016-05-19 2017-11-23 北京中科纳清科技股份有限公司 Dust removing module and gas dust-removing device
CN110898582A (en) * 2019-10-30 2020-03-24 广东精美特种型材有限公司 Dust removal system of casting furnace

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