CN107159449B - The apparatus and method of magnetic-particle in rotating excitation field gas recovery - Google Patents
The apparatus and method of magnetic-particle in rotating excitation field gas recovery Download PDFInfo
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- CN107159449B CN107159449B CN201710581185.3A CN201710581185A CN107159449B CN 107159449 B CN107159449 B CN 107159449B CN 201710581185 A CN201710581185 A CN 201710581185A CN 107159449 B CN107159449 B CN 107159449B
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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
- B03C1/00—Magnetic separation
- B03C1/02—Magnetic separation acting directly on the substance being separated
- B03C1/10—Magnetic separation acting directly on the substance being separated with cylindrical material carriers
- B03C1/12—Magnetic separation acting directly on the substance being separated with cylindrical material carriers with magnets moving during operation; with movable pole pieces
Abstract
The present invention relates to a kind of devices of magnetic-particle in rotating excitation field gas recovery, belong to gas solid separation field.The device of magnetic-particle in a kind of rotating excitation field gas recovery, described device includes: gas solid separation channel；The joint face of inlet channel, the inlet channel and gas solid separation channel close to ground side is bending joint face；Generation device of rotating magnetic field, the generation device of rotating magnetic field are set to below inlet channel and close to bending joint faces；The generation device of rotating magnetic field includes column rotary shaft, the multiple electromagnet for being circumferentially uniformly configured in rotating shaft surface, the power device for controlling rotary shaft and control device, the power supply device for controlling electromagnet.The use of device electromagnet of the present invention can prevent the magnetic medium after absorption in flue, the especially blocking of corner.By the use of more valve disks, especially when adulterating non-magnetic valve between each point of valve, process is collected in the transfer that can preferably control medium.
Description
Technical field
The present invention relates to a kind of devices of magnetic-particle in rotating excitation field gas recovery, belong to gas solid separation field.
Background technique
Isolation technics and magnetic separator are according to modern existing more than 50 years developing histories, by the effect of magnetic field force, to magnetic conductivity
Different substances are separated, and are applied to ore dressing industry earliest.After the industrial magnetic separator of American invention, Magneto separate starts with machinery
The form of equipment is advised in field of the raw materials such as coal desulfurization, glass and cement in addition to the ore dressings such as iron, kaolin purification successively
Modelling application.Magnetic separation method majority was applied to water treatment industry in recent years, and Magneto separate utilizes the magnetism of impurity particle in waste water
It is separated, for particle non magnetic or weak magnetic in water, can make them that there is magnetism using magnetic inoculation technique, by waste water
In magnetic suspended solid separate, to achieve the purpose that purified water.Preferable hair existing for the research of water process
Exhibition, however in terms of industrial cigarette (useless) gas Study on purification, research is few also without explicitly studying foundation.With social economy
It rapidly developing, the process of industrialization in China is also getting faster, while industrialized production brings economic development to us, great Liang Gong
The discharge of industry waste water, exhaust gas also brings serious threat to the natural environment that we depend on for existence.
Show that industrial wastewater discharge total amount is 716.2 ten thousand tons, the row of cigarette (powder) dirt according to national environmental statistics bulletin in 2015
Putting total amount is 1740.8 ten thousand tons, wherein industrial cigarette (powder) dirt discharge amount is 1456.1 ten thousand tons.Industrial fumes contain a large amount of nocuousness
Or fine particles can be recycled, if these particles, which cannot be handled and be recycled in time, will cause serious environmental pollution and original
The waste of material, however industrial smoke gradually endangers environment, frequent haze weather has beaten alarm bell to us, administers industry
Flue gas is extremely urgent.For cigarette (useless) gas dedusting, the generally existing efficiency such as traditional processing method such as particle precipitation method is relatively low
The bad situation with effect.China University of Geosciences Tang Dazhen et al. makes the separation of flyash ingredient of HGMS technology
Experimental study, the results showed that magnetic separation technique can be effectively separated the three classes basis in flue dust.This illustrates Magneto separate
Technology has its unique advantage in cigarette (useless) gas.In addition to this, in industrial and life, there are a variety of gas containing magnetisable material
Body in such as vehicle exhaust containing little metallic particles, the flue gas containing the porous magnetic medium for being adsorbed with PM2.5~10, contains
Be magnetic particle industrial fluids, be mixed into flue-gas for adsorbing wherein magnetic bead of Hg etc..
In gas solid separation, common separate mode has: gravitational settling, and inertia force separation is intercepted and separated, charged separation,
Gravitational settling be it is different from fluid density using particle, particle and fluid generation relative motion are to reach point under the effect of gravity
From process, gravitational settling is characterized in that sinking speed is small, so the sedimentation time needed is long, the very big situation of gas flow
Under, dust-settling compartment large area drawout in the plane is needed, occupied area is very big；According to multilayer architecture, then recycle
Solid particle is difficult to continuously collect discharge again, and efficiency of dust collection is very low.
Centrifuge separation is also one kind of sedimentation separation, and principle is to utilize particle different from fluid density, in centrifugal force
It acts on lower particle to generate relative motion with fluid and separate, the advantage of centrifuge separation is square of centrifugal force Yu fluid tangential velocity
It is directly proportional, therefore raising linear speed can greatly improve the sinking speed of particle in a fluid, not only improve separating effect, but also reduce
Equipment volume, but be not particularly suited for the separation of carried magnetic porous media, centrifugal force can make carried magnetic porous media with
Sharp impacts occur for the wall surface of separator, and the fine particle that impact force can be such that magnetic porous medium traps is detached from, and are not achieved
The effect of clean flue gas.
Inertia separator is placed obstacles object on the path of gas flowing, and turnover suddenly occurs for when air-flow cut-through object,
Particle or drop, which just impinge upon on barrier, to be captured down, and main problem is its deflecting in the process only by inertia force, and there are classes
Like the separation extreme of cyclone separator, and its deflecting process is short, therefore separating capacity is much smaller than cyclone separator, and adding needs
It wants high linear speed to provide enough inertia force, therefore is difficult to avoid that particle takes up problem again, therefore separative efficiency is not high, only compare dust-settling compartment
It is slightly good, it can only generally be used as coarse separator.
Charged separation is the band Charged particle in gas, separates particle with gas under the action of electric field force.But
It is carried magnetic porous media without charged, therefore the technology cannot be separated with this.And charged separation needs rapping, rapping meeting
Reentrainment of dust is caused, and standard far can not be reached to containing the biggish occasion trapping of magnetic porous medium amount；Furthermore entire
Dust-extraction unit needs high-voltage transforming and rectifier equipment, and investment and operating cost are all higher.
Summary of the invention
In order to solve the above technical problems, the of the invention dress for being to provide magnetic-particle in a kind of rotating excitation field gas recovery
It sets.
The device of magnetic-particle, described device include: in a kind of rotating excitation field gas recovery
Gas solid separation channel, the gas solid separation channel are arranged with the direction for being parallel to gravity, and top is equipped with for arranging
The gas discharge outlet of gas out, bottom end are equipped with the solids outlet port for magnetic-particle discharge；
Inlet channel, the inlet channel are used to be passed through the gas containing magnetic-particle to gas solid separation channel；The air inlet
With horizontally arranged, one end is communicated with gas solid separation channel in channel, and the other end is for being connected to gas source；The inlet channel
Joint face with gas solid separation channel close to ground side is bending joint face；
Generation device of rotating magnetic field, the generation device of rotating magnetic field are set to below inlet channel and close to bending connections
Face；The generation device of rotating magnetic field include column rotary shaft, the multiple electromagnet for being circumferentially uniformly configured in rotating shaft surface,
For controlling the power device and control device, the power supply device for controlling electromagnet of rotary shaft.
Gas solid separation channel of the present invention in it for carrying out the separation of magnetic retention particle and gas, institute after separation
It obtains gas to be discharged by the gas discharge outlet for being located at top, resulting magnetic retention particle is arranged by the solids outlet port for being located at bottom end
Out.
Further, it is equipped in the lower section of solids outlet port and has magnetic tray, for accepting magnetic retention particle.
Inlet channel of the present invention will contain magnetic-particle for receiving the gas containing magnetic-particle from gas source
Gas import gas solid separation channel in.
Further, it is preferable to which gas solid separation channel and inlet channel are cylindrical shape.
Inlet channel of the present invention is connected with gas-solid split tunnel, interconnecting piece between the two, especially close to ground
The joint face of the interconnecting piece of side is bending joint face, is slid from there in order to facilitate solid particle to gas solid separation channel
Bottom.
Further, the section of the bending joint face is arc-shaped；Further, the arc-shaped radian is 90
Degree.
Generation device of rotating magnetic field of the present invention includes column rotary shaft, is circumferentially uniformly configured in rotating shaft surface
Multiple electromagnet, the power device for controlling rotary shaft and control device, the power supply device for controlling electromagnet.
Further, the generation device of rotating magnetic field includes 3~12 for being circumferentially uniformly configured in rotating shaft surface
Electromagnet.Further, the fixed several cavitys being uniformly arranged of the column rotary shaft, the cavity is interior to load electromagnet.
Further, it in the generation device of rotating magnetic field, is set between the every two electromagnet of rotating shaft surface in configuration
It sets without magnetic non-magnetic block.Further, the fixed several cavitys being uniformly arranged of the column rotary shaft, the sky
Intracavitary loading electromagnet and non-magnetic block.
Power device and control device of the present invention for controlling rotary shaft is power device disclosed in the prior art
And control device, for controlling the rotation and stopping of rotary shaft.
The power supply device of control electromagnet of the present invention is power supply device disclosed in the prior art, for controlling each electricity
Whether the energization of magnet.
Generation device of rotating magnetic field of the present invention is set to below inlet channel and close to bending joint face；Further,
The generation device of rotating magnetic field is located at by the column rotation shaft section center of circle with the center of circle for being bent joint face circular section same
Point setting, and generation device of rotating magnetic field is 1/10R at a distance from being bent between joint face, wherein R is the arc radius.
Device of the present invention further comprise be respectively used to detection gas solid separation channel gas outlet gas flow and
The flow rate test display device of charge flow rate in inlet channel.
The preferably described electromagnet of device of the present invention is solenoid electromagnet.
Device working principle of the present invention is as follows, and process is as shown in Figure 1, by taking three electromagnet as an example, when A electromagnet position
When top, which, which is powered, generates magnetic field, and under the action of magnetizing force, these magnetic mediums can be drawn onto A electromagnet table
Face.When electromagnet rotates, and reaches (3) step by (2), the power-off of A magnet, B magnet is powered, in this way by lower magnetic sucker
Effect, the magnetic medium of load can be attracted on sucker, and part B is in the top close to flue at this time, the magnetic field generated
New carried magnetic medium can be attracted, so circulation realizes cigarette after magnetic medium and purification eventually by the transfer of the electromagnet
The separation of gas.
It is a further object of the present invention to provide the methods for carrying out gas solid separation using above-mentioned apparatus, will contain magnetic-particle gas
Body is passed through by inlet channel, opens generation device of rotating magnetic field, is controlled and is powered near an electromagnet A of inlet channel,
He powers off electromagnet；After a certain period of time, control rotary shaft rotation, electromagnet A rotate to close to gas solid separation channel position, together
When electromagnet A power off, and make at present near inlet channel electromagnet B be powered, repeat electromagnet A operation；By above-mentioned behaviour
It recycles.
Further, it is preferable to which the flow velocity containing magnetic-particle gas is 0~30m/s (being free of 0)；It is preferred that motor speed n is 0
~3000r/min (is free of 0), and each electromagnet conduction time is 1/3n minutes.
The invention has the benefit that the use of device electromagnet of the present invention can prevent the magnetic medium after absorption from existing
In flue, the especially blocking of corner.By the use of valve electromagnet more in generation device of rotating magnetic field, especially when each
A to divide when adulterating non-magnetic non-magnetic block between valve electromagnet, process is collected in the transfer that can preferably control medium.Each point
It will be installed in point valve cavity using the electromagnet of solenoid type in valve electromagnet, in order to facilitate researching and designing.
Detailed description of the invention
Fig. 1 (1)~(5) are that rotating excitation field acts on lower carried magnetic porous media collection, schematic diagram of transfer process；
Fig. 2 is the schematic diagram of the device of magnetic-particle in rotating excitation field gas recovery；
Fig. 3 is the schematic side view of the device of magnetic-particle in rotating excitation field gas recovery；
Fig. 4 is the schematic top plan view of the device of magnetic-particle in rotating excitation field gas recovery.
Specific embodiment
Following non-limiting embodiments can with a person of ordinary skill in the art will more fully understand the present invention, but not with
Any mode limits the present invention.
Test method described in following embodiments is unless otherwise specified conventional method；The reagent and material, such as
Without specified otherwise, commercially obtain.
Embodiment 1
The device of magnetic-particle, described device include: in a kind of rotating excitation field gas recovery
Gas solid separation channel 1, the gas solid separation channel 1 are arranged with the direction for being parallel to gravity, and top is equipped with and is used for
The gas discharge outlet 101 of gas is discharged, bottom end is equipped with the solids outlet port 102 for magnetic-particle discharge；In solids outlet port
102 lower section, which is equipped with, has magnetic tray, for accepting magnetic retention particle.
Inlet channel 2, the inlet channel 2 are used to be passed through the gas containing magnetic-particle to gas solid separation channel 1；It is described into
With horizontally arranged, one end is communicated with gas solid separation channel 1 in gas channel 2, and the other end is for being connected to gas source；The air inlet
The joint face of channel 2 and gas solid separation channel 1 close to ground side is bending joint face 201；
The gas solid separation channel 1 and inlet channel 2 are cylindrical shape, 1 phase of the inlet channel 2 and gas-solid split tunnel
Connection, joint face of the interconnecting piece close to ground side between the two is bending joint face 201, and the bending joint face 201 is cut
Face be it is arc-shaped, the arc-shaped radian be 90 degree.
Generation device of rotating magnetic field 3, the generation device of rotating magnetic field 3 are set to 2 lower section of inlet channel and connect close to bending
Junction 201.The generation device of rotating magnetic field is by the 301 section center of circle of column rotary shaft and bending 201 circular section of joint face
The center of circle be located at same point setting, and generation device of rotating magnetic field 3 between bending joint face 201 at a distance from be 1/10R, wherein R
For the arc radius.
The generation device of rotating magnetic field 3 is including column rotary shaft 301 and is circumferentially uniformly configured in rotating shaft surface
Three electromagnet 302, specifically, the column rotary shaft fix three cavitys being uniformly arranged 303, and the cavity 303 is built-in
Carry electromagnet 302.The electromagnet 302 is solenoid electromagnet.
The device of magnetic-particle further includes the power device for controlling rotary shaft 301 in the gas recovery, described dynamic
Power device includes the shaft coupling and motor being connected with rotary shaft 301, for controlling the rotation of rotary shaft；Magnetic in gas recovery
The device of grain includes power supply, and the power supply is power supply device disclosed in the prior art, for control the energization of each electromagnet with
It is no.The device of magnetic-particle includes being respectively used to detection gas solid separation channel gas outlet gas flow in the gas recovery
With the flow rate test display device of charge flow rate in inlet channel.
Gas containing carried magnetic porous media particle enters gas solid separation channel 1 by inlet channel 2, wherein gas
Flow velocity is 4m/s, and during gas and carried magnetic porous media particle move, generation device of rotating magnetic field 3 is powered, often
The conduction time of a electromagnet is 1/300 minute, generates magnetism, and carried magnetic porous media particle is fast by the effect of magnetizing force
Speed sedimentation, rotary electric machine 304 drive column rotary shaft 301 to rotate at the same speed by bearing and shaft coupling 305, and three valve magnetic fields are (by three
A electromagnet generates) it works alternatively, motor speed 100r/min.Gas is continued to move to carried magnetic porous media particle
Gas solid separation channel 1, realization is completely separated, and clean gas is flowed out by the gas discharge outlet 101 of upper end, carried magnetic porous media
Particle is since the effect of magnetizing force and gravity is deposited to 1 bottom end of gas solid separation channel, when carried magnetic porous media particle accumulation
To it is a certain amount of when open electric gate valve 4, and be powered to removable magnechuck 5, the carried magnetic porous media after making separation
Grain is transferred on removable magnechuck 5.Carried magnetic porous media particle after separation enters at the discrete concussion of ultrasonic wave
Concussion (can be contained with alcoholic solution in the discrete concussion processor of ultrasonic wave or fall off solution containing inhibition film) in reason device, will be magnetic
The adsorbed fine particle removing of porous media, magnetic porous medium heat is dried, and realizes the circulation benefit of magnetic porous medium
With.In addition, the structural parameters of rotating excitation field electromagnetic coil are to pass through the calculating to electromagnet, the elementary structure parameter of electromagnet
It is as follows:
| Coil outer diameter | Dxq=138.82mm |
| Internal coil diameter | dxq=120mm |
| Single enamel-cover linear diameter | D=0.939mm |
| Solid conductor copper diameter of section | dx=0.85mm |
| Coil turn | N=804 circle |
| Coil length | lxq=75.26mm |
The inhibition film falls off solution, is grouped as by following groups:
| Solution | Content |
| Cobaltous sulfate | 100g/L |
| Sodium citrate | 25g/L |
| Boric acid | 40g/L |
| Sodium chloride | 30g/L |
| Ferric sulfate | 100g/L |
Claims (9)
1. a kind of method of gas solid separation, it is characterised in that: gas solid separation magnetic-particle in rotating excitation field gas recovery
Device carry out, specifically: will be passed through by inlet channel containing magnetic-particle gas, and open generation device of rotating magnetic field, control
An electromagnet A near inlet channel is powered, the power-off of other electromagnet；After a certain period of time, control rotary shaft rotation, electromagnetism
Iron A is rotated to the position close to gas solid separation channel, while electromagnet A is powered off, and makes the electromagnetism near inlet channel at present
Iron B is powered, and repeats the operation of electromagnet A；It is recycled by aforesaid operations；
The device of magnetic-particle includes: in the rotating excitation field gas recovery
Gas solid separation channel, the gas solid separation channel are arranged with the direction for being parallel to gravity, and top is equipped with for gas to be discharged
The gas discharge outlet of body, bottom end are equipped with the solids outlet port for magnetic-particle discharge；
Inlet channel, the inlet channel are used to be passed through the gas containing magnetic-particle to gas solid separation channel；The inlet channel
With horizontally arranged, one end is communicated with gas solid separation channel, and the other end is for being connected to gas source；The inlet channel and gas
Gu joint face of the split tunnel close to ground side is bending joint face；
Generation device of rotating magnetic field, the generation device of rotating magnetic field are set to below inlet channel and close to bending joint faces；Institute
Generation device of rotating magnetic field is stated to include column rotary shaft, the multiple electromagnet for being circumferentially uniformly configured in rotating shaft surface, be used for
Control the power device and control device, the power supply device for controlling electromagnet of rotary shaft.
2. according to the method described in claim 1, it is characterized by: the section of the bending joint face is arc-shaped.
3. according to the method described in claim 2, it is characterized by: the arc-shaped radian is 90 degree.
4. according to the method in claim 2 or 3, it is characterised in that: the generation device of rotating magnetic field presses column rotary shaft
The section center of circle and the center of circle of bending joint face circular section are located at same point setting, and generation device of rotating magnetic field and bending connect
Distance between junction is 1/10R, and wherein R is the arc radius.
5. according to the method described in claim 1, it is characterized by: the generation device of rotating magnetic field includes circumferentially uniformly matching
Set 3~12 electromagnet in rotating shaft surface.
6. according to the method described in claim 1, it is characterized by: being rotated in the generation device of rotating magnetic field in configuration
Setting does not have magnetic non-magnetic block between the every two electromagnet on axis surface.
7. according to the method described in claim 6, it is characterized by: the fixed several skies being uniformly arranged of the column rotary shaft
Chamber, the cavity is interior to load electromagnet or electromagnet and non-magnetic block.
8. according to the method described in claim 1, it is characterized by: described device includes being respectively used to detection gas solid separation channel
The flow rate test display device of charge flow rate in gas discharge outlet gas flow and inlet channel.
9. according to the method described in claim 1, it is characterized by: the electromagnet is solenoid electromagnet.
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| CN201710581185.3A CN107159449B (en) | 2017-07-17 | 2017-07-17 | The apparatus and method of magnetic-particle in rotating excitation field gas recovery |
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| CN107803270B (en) * | 2017-11-20 | 2023-07-18 | 华南理工大学 | Device for removing magnetic particles through powder suspension conveying pipeline |
| CN110801678B (en) * | 2019-11-19 | 2021-07-16 | 温岭市亚超童鞋业有限公司 | Dandelion-like self-dropping type filtering device for purifying heavily-polluted waste gas |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3998741A (en) * | 1976-02-26 | 1976-12-21 | Councell Graham D | Magnetically attractable particle separator |
| JPH03193146A (en) * | 1989-12-25 | 1991-08-22 | Tokin Corp | Dust collector |
| RU2060829C1 (en) * | 1992-07-21 | 1996-05-27 | Криворожский горнорудный институт | Magnetic separator to separate loose materials |
| JP4080035B2 (en) * | 1997-09-08 | 2008-04-23 | ユキエンジニアリング株式会社 | Airflow type magnetic separator |
| DE10196215B3 (en) * | 2000-05-23 | 2014-05-15 | Tsukasa Industry Co., Ltd. | Device for removing foreign material of the rotary valve type |
| CN101648163B (en) * | 2009-09-14 | 2011-08-03 | 武汉理工大学 | External annular sorting device |
| CN104903243A (en) * | 2012-11-14 | 2015-09-09 | 南非大学 | Method and apparatus for treating a fluid |
| US9855564B2 (en) * | 2014-05-06 | 2018-01-02 | MagSolutions, LLC | Devices and methods for removing ferromagnetic particles from a liquid |
| US9802205B2 (en) * | 2014-05-16 | 2017-10-31 | Ford Global Technologies, Llc | Particle separation system |
| CN104888952B (en) * | 2015-05-28 | 2016-07-06 | 张宝祥 | A kind of material separation device |
| CN205731606U (en) * | 2016-06-15 | 2016-11-30 | 武汉钢铁股份有限公司 | Roll grinder grinding fluid electromagnetic separation |
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Application publication date: 20170915 Assignee: Dalian BIM Technology Co.,Ltd. Assignor: Northeastern University Contract record no.: X2022210000037 Denomination of invention: Apparatus and method for recovering magnetic particles in gas by rotating magnetic field Granted publication date: 20190820 License type: Exclusive License Record date: 20220809 |
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