CN107470040B - Electromagnetic cyclone dust collector - Google Patents
Electromagnetic cyclone dust collector Download PDFInfo
- Publication number
- CN107470040B CN107470040B CN201710892617.2A CN201710892617A CN107470040B CN 107470040 B CN107470040 B CN 107470040B CN 201710892617 A CN201710892617 A CN 201710892617A CN 107470040 B CN107470040 B CN 107470040B
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- Prior art keywords
- air inlet
- inlet channel
- cyclone
- magnetic field
- dust
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- 239000000428 dust Substances 0.000 title claims abstract description 96
- 230000005686 electrostatic field Effects 0.000 claims abstract description 4
- 239000000919 ceramic Substances 0.000 claims description 3
- 230000005358 geomagnetic field Effects 0.000 claims description 3
- 239000011810 insulating material Substances 0.000 claims description 3
- 238000009413 insulation Methods 0.000 claims description 3
- 239000007769 metal material Substances 0.000 claims description 3
- 238000009434 installation Methods 0.000 claims description 2
- 230000005684 electric field Effects 0.000 description 9
- 239000002245 particle Substances 0.000 description 8
- 230000006698 induction Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 239000000443 aerosol Substances 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
- B04C—APPARATUS USING FREE VORTEX FLOW, e.g. CYCLONES
- B04C9/00—Combinations with other devices, e.g. fans, expansion chambers, diffusors, water locks
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
- B04C—APPARATUS USING FREE VORTEX FLOW, e.g. CYCLONES
- B04C9/00—Combinations with other devices, e.g. fans, expansion chambers, diffusors, water locks
- B04C2009/001—Combinations with other devices, e.g. fans, expansion chambers, diffusors, water locks with means for electrostatic separation
Abstract
The invention discloses an electromagnetic cyclone dust collector, which comprises an upper cyclone cylinder body and a lower cyclone cone body, wherein an air inlet channel is connected to the cyclone cylinder body, a corona electrode is arranged in the air inlet channel, an electrostatic field electrode pair is formed by the corona electrode and the side wall of the air inlet channel, an exhaust pipe is connected to the cyclone cylinder body, and a magnetic field coil is wound on the outer wall of the cyclone cylinder body. When the charged dust leaves the action range of the Lorenter magnetic field, the movement rule of the dust is the same as that of a common cyclone dust collector. The invention greatly improves the dust removal efficiency of the cyclone dust collector, in particular to the removal efficiency of fine dust, and has simple structure and reliable performance.
Description
Technical Field
The invention relates to dust removing equipment, in particular to an electromagnetic cyclone dust remover.
Background
The dust collectors widely used in the dust removing field include mechanical dust collectors, filter dust collectors, electric dust collectors, wet dust collectors and the like. Among the mechanical dust collectors, the cyclone dust collector is one of the most common dust collecting devices because it has no moving parts, has a simple structure, and is convenient to use. Although the cyclone has these advantages, since it uses centrifugal separation in its basic principle, cyclone dust removal is low in efficiency for smaller particle size dust, and many researches have been made by researchers to improve dust removal efficiency of the cyclone. The chinese patent application CN03103249 discloses a magnetic field dust remover, which uses a permanent magnet to form a magnetic field, so that dust in wind current passing through the magnetic field is separated under the action of an electric field force, but the dust remover has two defects, namely, only the magnet can be disassembled by adjusting the direction of the magnetic field; secondly, dust entering the dust remover is charged by a natural process. Chinese patent application CN201220489990 discloses a magnetic field dust remover, which is aimed at removing iron filings in air current in metal processing process, and an electromagnet group is constructed to generate magnetic field attraction force, so that the magnetic iron filings are attracted and separated from air current; chinese patent application CN201510701995 discloses a two-stage cyclone magnetic field dust remover, which is constructed such that an energizing wire generates a magnetic field, and dust in the wind current is removed under the action of centrifugal force on the one hand and magnetic field force on the other hand; chinese patent application CN200920147490 discloses a horizontal magnetic field dust remover, which also uses permanent magnets to form a magnetic field, so that dust in wind current passing through the magnetic field is separated under the action of electric field force, but the defect is that this mode only has better effect on removing magnetic dust in the air current, and the dust removing efficiency is not high.
In summary, although various attempts have been made to improve the dust removal efficiency of the dust remover, the dust removal efficiency is not greatly improved, and the conventional magnetic field dust remover mainly has the following problems: 1) The permanent magnet is used for forming a magnetic field, the magnet can only be disassembled when the direction of the magnetic field is adjusted, dust entering the dust remover is electrified by a natural process, the dust removing efficiency is low, and the permanent magnet is used for solving the problems that the magnetic attenuation is long time, the magnetic pole cannot be changed on line, and the like; 2) The magnetic attraction force is used for removing magnetic dust in the airflow, so that the adaptability is poor.
Disclosure of Invention
The invention aims to provide an electromagnetic cyclone dust collector which greatly improves the dust collection efficiency of the cyclone dust collector and has simple structure and reliable performance.
In order to achieve the above purpose, the invention adopts the following technical scheme: the utility model provides an electromagnetic cyclone dust remover, includes the whirlwind barrel and the whirlwind cone of lower part on upper portion, even there is the inlet channel on the whirlwind barrel, be equipped with the corona pole in the inlet channel, the corona pole with the lateral wall of inlet channel forms electrostatic field electrode pair, even there is the blast pipe on the whirlwind barrel, whirlwind barrel outer wall winding magnetic field coil.
The invention increases the electric field behind the air inlet of the traditional cyclone dust collector, and adds the magnetic field coil in the upper portion of the cyclone cylinder, on one hand the dust-containing air current flows through the air inlet to charge the dust, after the charged dust enters the cyclone cylinder along the tangent line, under the effect of centrifugal force, the dust has a radial velocity, so that the charged dust rotates and centrifugally moves in the cyclone cylinder, moves towards the cylinder wall of the cyclone cylinder, and realizes separation; on the other hand, when the charged dust entering the cyclone cylinder rotates by changing the current direction of the magnetic field coil, the magnetic force lines generated by the magnetic field coil are cut, and then the received Lorentz magnetic field deflects the dust, so that the charged dust is far away from the axis of the cyclone cylinder, and finally, the charged dust reaches the cylinder wall to be separated under the combined action of centrifugal force, the Lorentz magnetic field and Stokes force. When the charged dust leaves the action range of the Lorenter magnetic field, the movement rule of the dust is the same as that of a common cyclone dust collector. The invention comprehensively utilizes mechanisms such as electrostatics, electromagnetics, aerosol mechanics and the like in the cyclone dust collector, thereby greatly improving the dust removal efficiency of the cyclone dust collector, in particular to the removal efficiency of fine dust. The invention has simple structure and reliable performance.
Further, the corona electrode is in a bent shape and comprises a first vertical section and a second vertical section parallel to the first vertical section, a horizontal section is connected between the first vertical section and the bottom end of the second vertical section, and the first vertical section and the second vertical section are respectively perpendicular to the horizontal section. This structure greatly increases the stability of the electric field in the intake passage.
Further, the horizontal segment is equidistant from each side wall of the air inlet channel, and the horizontal segment is parallel to the air inlet direction. The external voltage of the electric field is determined by the distance between the shortest corona pair, the electric field in the air inlet channel is formed by the corona electrode and the side wall metal piece, and the distance between the corona electrode and the side wall is equidistant, so that the electric field can be prevented from being broken down in the shortest distance due to the fact that the distance between the corona electrode and the side wall is different, and the stability of the electric field in the air inlet channel is further improved.
Further, the section of the air inlet channel is square, the top surface of the air inlet channel is made of an insulating material, the other three surfaces are made of metal materials, and the corona electrode is fixed on the top surface of the air inlet channel.
Further, the air inlet device further comprises a direct current power supply and a high-voltage power supply, one end of the magnetic field coil is connected with the positive electrode of the direct current power supply, the other end of the magnetic field coil is connected with the negative electrode of the direct current power supply, the corona electrode is connected with the positive electrode of the high-voltage power supply, and the side wall of the air inlet channel is grounded.
Further, the diameter of the exhaust pipe is 1/4-1/2 of the diameter of the cyclone cylinder.
Further, the depth of the exhaust pipe inserted into the cyclone cylinder is greater than the height of the air inlet channel.
Further, the air inlet channel is tangential to the cyclone cylinder body, and the ratio of the length of the horizontal section to the length of the air inlet channel is 1/4-1/2. The arrangement structure ensures that the dust charge efficiency is high, and finally, the unexpected dust removal effect is obtained.
Further, the magnetic field coil is a single wire with an outer layer wrapped with an insulating layer.
Further, the corona electrode is connected with the positive electrode of the high-voltage power supply through a ceramic insulation terminal.
Drawings
Fig. 1 is a schematic structural view of an electromagnetic cyclone dust collector.
FIG. 2 is a schematic view of the cross-sectional structure A-A of FIG. 1.
Fig. 3 is a schematic view of the corona electrode and air inlet of fig. 1.
Fig. 4 is a schematic view of the cross-sectional B-B structure of fig. 3.
Detailed Description
The invention will be described in further detail below with reference to the drawings, for a clearer understanding of the invention, but they are not limiting.
An electromagnetic cyclone dust collector shown in fig. 1 comprises an upper cyclone cylinder body 1 and a lower cyclone cone body 2, wherein the bottom end of the cyclone cylinder body 1 is fixedly connected with the top end of the cyclone cone body 2, an air inlet channel 3 is connected to the cyclone cylinder body 1, a corona electrode 4 is arranged in the air inlet channel 3, the corona electrode 4 is connected with an anode of an externally-applied high-voltage power supply through a ceramic insulation terminal 7, the side wall of the air inlet channel 3 is grounded, the corona electrode 4 and the side wall of the air inlet channel 3 form an electrostatic field electrode pair, the upper end of the cyclone cylinder body 1 is connected with an exhaust pipe 5, the diameter of the exhaust pipe 5 is 1/4-1/2 of the diameter of the cyclone cylinder body 1, the depth of the exhaust pipe 5 inserted into the cyclone cylinder body 1 is greater than the height of the air inlet channel 3, a magnetic field coil 6 is tightly wound on the outer wall of the cyclone cylinder body 1, the magnetic field coil 6 is a single wire with an insulating layer, a coil turn of the magnetic field coil 6 is insulated with a turn-to-turn and a coil and the cyclone cylinder body 1 by epoxy resin and the like, the magnetic field coil 6 is provided with a pair of outgoing terminals, and the outgoing ends of the magnetic field coil 6 are respectively connected with the anode and the cathode of a direct-current power supply.
In the above scheme, as shown in fig. 2, the air inlet channel 3 is tangential to the cyclone cylinder 1, so that the air flow enters the cyclone cylinder 1 in a tangential manner. The section of the air inlet channel 3 is square, the top surface of the air inlet channel is made of insulating materials, the other three surfaces are made of metal materials, and the corona electrode 4 is fixed on the top surface of the air inlet channel 3.
In the above scheme, referring to fig. 3 and 4, the corona electrode 4 is in a bent shape and includes a first vertical section 4-1 and a second vertical section 4-2 parallel to the first vertical section 4-1, a horizontal section 4-3 is connected between the first vertical section 4-1 and the bottom end of the second vertical section 4-2, and the first vertical section 4-1 and the second vertical section 4-2 are perpendicular to the horizontal section 4-3 respectively. The distance between the horizontal section 4-3 and each side wall of the air inlet channel 3 is equal, the horizontal section 4-3 is parallel to the air inlet direction, and the length of the horizontal section 4-3 is 1/4-1/2 of the length of the air inlet channel 3.
The working process of the electromagnetic cyclone dust collector is as follows: when the dust-containing air flow passes through the air inlet channel 3, dust charges under the action of an electric field, enters the cyclone cylinder 1 in a tangential mode with the cyclone cylinder 1, and enters the cyclone cylinder 1, on one hand, due to the fact that the magnetic field lines are cut, deflection away from the axis of the cyclone cylinder 1 is generated, the dust collides with the inner wall of the cyclone cylinder 1 to be separated, meanwhile, the dust charged also moves towards the inner wall of the cyclone cylinder 1 under the action of centrifugal force due to the fact that the dust moves in the radial direction, and simultaneously moves downwards in the axial direction until reaching the cyclone cone 2, and finally purified air flow is discharged through the exhaust pipe 5.
The dust separation principle of the electromagnetic cyclone dust collector is as follows:
a. the deflection radius R of charged particles in the cyclone cylinder body when moving in the magnetic field generated by the magnetic field coil is determined by the charge q of dust, the magnetic induction intensity B generated by the magnetic field coil in the cyclone cylinder body and the mass m of dust p The movement v of the dust in the direction perpendicular to the magnetic field is determined by the following formula:
b. the magnetic field coil is adjusted to generate geomagnetic field polarity by exchanging the leading-out wire terminals of the magnetic field coil and connecting the leading-out wire terminals with positive and negative of the power supply.
c. The magnetic field coil is adjusted to generate geomagnetic field intensity by changing power supply voltage.
d. When the particle movement is perpendicular to the magnetic induction intensity direction, the speed of charged particles is unchanged, only the direction is changed, the charged particles do uniform circular movement,
namely: f=qv t B，The radius of the orbit and the tangential velocity (v) of the rotation of the charged particles in the cyclone t ) The smaller the tangential speed of rotation, or the greater the magnetic induction (B), the more the track curvature (R) is, which is proportional and inversely proportional to the magnetic induction (B).
e. In order to make the charged particles obtain the rotating radius expressed by the formula under the action of magnetic induction intensity, and make the charged dust deflect towards the direction of the cylinder wall, the positive and negative connection method of the electrified magnetic field coil and external power supply is regulated, and the voltage of the power supply is regulated.
f. The centrifugal force to which the particles are subjected is:
the principle of connection between the magnetic field coil and the positive and negative poles of the direct current power supply is that when charged dust enters the magnetic field of the electrified coil, the charged dust moves towards the cylinder wall under the force of the magnetic field. The wiring of the magnetic field coil, the adjustment of the voltage and the adjustment time are all completed by manual adjustment in the dust removal installation and debugging stage according to the processed dust characteristics.
Claims (8)
1. An electromagnetic cyclone dust collector comprises an upper cyclone cylinder (1) and a lower cyclone cone (2), and is characterized in that: an air inlet channel (3) is connected to the cyclone cylinder body (1), a corona electrode (4) is arranged in the air inlet channel (3), an electrostatic field electrode pair is formed by the corona electrode (4) and the side wall of the air inlet channel (3), an exhaust pipe (5) is connected to the cyclone cylinder body (1), and a magnetic field coil (6) is wound on the outer wall of the cyclone cylinder body (1); the electromagnetic cyclone dust collector also comprises a direct current power supply and a high-voltage power supply, one end of the magnetic field coil (6) is connected with the positive electrode of the direct current power supply, the other end of the magnetic field coil is connected with the negative electrode of the direct current power supply, the corona electrode (4) is connected with the positive electrode of the high-voltage power supply, and the side wall of the air inlet channel (3) is grounded; in the installation and debugging stage of the dust remover, according to the processed dust characteristics, the magnetic field coil is adjusted to generate geomagnetic field polarity by exchanging the positive and negative connection modes of the lead-out wire terminals of the magnetic field coil and the power supply, so that when charged dust enters the magnetic field of the electrified coil, the charged dust moves towards the cylinder wall under the action of magnetic field force;
the corona electrode (4) is in a bent shape and comprises a first vertical section (4-1) and a second vertical section (4-2) parallel to the first vertical section (4-1), a horizontal section (4-3) is connected between the first vertical section (4-1) and the bottom end of the second vertical section (4-2), and the first vertical section (4-1) and the second vertical section (4-2) are respectively perpendicular to the horizontal section (4-3).
2. The electromagnetic cyclone dust collector as claimed in claim 1, wherein: the horizontal sections (4-3) are equal in distance from each side wall of the air inlet channel (3), and the horizontal sections (4-3) are parallel to the air inlet direction.
3. An electromagnetic cyclone dust collector as claimed in claim 1 or 2, wherein: the section of the air inlet channel (3) is square, the top surface of the air inlet channel is made of an insulating material, the other three surfaces of the air inlet channel are made of a metal material, and the corona electrode (4) is fixed on the top surface of the air inlet channel (3).
4. The electromagnetic cyclone dust collector as claimed in claim 1, wherein: the diameter of the exhaust pipe (5) is 1/4-1/2 of the diameter of the cyclone cylinder body (1).
5. The electromagnetic cyclone according to claim 1 or 4, wherein: the depth of the exhaust pipe (5) inserted into the cyclone cylinder body (1) is larger than the height of the air inlet channel (3).
6. The electromagnetic cyclone dust collector as claimed in claim 2, wherein: the air inlet channel (3) is tangential to the cyclone cylinder body (1), and the length ratio of the horizontal section (4-3) to the air inlet channel (3) is 1/4-1/2.
7. The electromagnetic cyclone dust collector as claimed in claim 1, wherein: the magnetic field coil (6) is a single wire with an outer layer wrapped by an insulating layer.
8. The electromagnetic cyclone dust collector as claimed in claim 1, wherein: the corona electrode (4) is connected with the positive electrode of the high-voltage power supply through a ceramic insulation terminal (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710892617.2A CN107470040B (en) | 2017-09-27 | 2017-09-27 | Electromagnetic cyclone dust collector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710892617.2A CN107470040B (en) | 2017-09-27 | 2017-09-27 | Electromagnetic cyclone dust collector |
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| Publication Number | Publication Date |
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| CN107470040A CN107470040A (en) | 2017-12-15 |
| CN107470040B true CN107470040B (en) | 2023-11-07 |
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| CN201710892617.2A Active CN107470040B (en) | 2017-09-27 | 2017-09-27 | Electromagnetic cyclone dust collector |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109847892A (en) * | 2019-03-20 | 2019-06-07 | 兰州大学 | A kind of reduction-diffusion process prepares the deimpurity device of terres rares-transition metal alloy |
| CN111774395A (en) * | 2020-05-28 | 2020-10-16 | 吴迪 | Textile dust collecting device for textile equipment and use method |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6355178B1 (en) * | 1999-04-02 | 2002-03-12 | Theodore Couture | Cyclonic separator with electrical or magnetic separation enhancement |
| CN2870992Y (en) * | 2005-09-05 | 2007-02-21 | 海城市牌楼梁兰除尘设备厂 | Efficient cyclone electric dust collector |
| KR20120022216A (en) * | 2010-09-01 | 2012-03-12 | (주) 나노기술 | Nanopowder separating device using an electrostatic trap in a metal nanopowder manufacturing equipment based on aerosol process |
| CN203155405U (en) * | 2013-04-18 | 2013-08-28 | 东北师范大学 | External alternating magnetic field-based electrostatic cyclone dust removal system |
| CN103480513A (en) * | 2013-09-18 | 2014-01-01 | 江苏大学 | High-speed vortex electric field and cyclone combined separation method and cyclone separator |
| CN207667846U (en) * | 2017-09-27 | 2018-07-31 | 江汉大学 | Electromagnetism cyclone dust collectors |
-
2017
- 2017-09-27 CN CN201710892617.2A patent/CN107470040B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6355178B1 (en) * | 1999-04-02 | 2002-03-12 | Theodore Couture | Cyclonic separator with electrical or magnetic separation enhancement |
| CN2870992Y (en) * | 2005-09-05 | 2007-02-21 | 海城市牌楼梁兰除尘设备厂 | Efficient cyclone electric dust collector |
| KR20120022216A (en) * | 2010-09-01 | 2012-03-12 | (주) 나노기술 | Nanopowder separating device using an electrostatic trap in a metal nanopowder manufacturing equipment based on aerosol process |
| CN203155405U (en) * | 2013-04-18 | 2013-08-28 | 东北师范大学 | External alternating magnetic field-based electrostatic cyclone dust removal system |
| CN103480513A (en) * | 2013-09-18 | 2014-01-01 | 江苏大学 | High-speed vortex electric field and cyclone combined separation method and cyclone separator |
| CN207667846U (en) * | 2017-09-27 | 2018-07-31 | 江汉大学 | Electromagnetism cyclone dust collectors |
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| Publication number | Publication date |
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| CN107470040A (en) | 2017-12-15 |
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