CN107457082A - The adjustable friction electrical selection sorting unit of multisection type high voltage electric field and method - Google Patents
The adjustable friction electrical selection sorting unit of multisection type high voltage electric field and method Download PDFInfo
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- CN107457082A CN107457082A CN201710532904.2A CN201710532904A CN107457082A CN 107457082 A CN107457082 A CN 107457082A CN 201710532904 A CN201710532904 A CN 201710532904A CN 107457082 A CN107457082 A CN 107457082A
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- high voltage
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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
- B03C7/00—Separating solids from solids by electrostatic effect
- B03C7/02—Separators
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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
- B03C7/00—Separating solids from solids by electrostatic effect
- B03C7/006—Charging without electricity supply, e.g. by tribo-electricity, pyroelectricity
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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
- B03C7/00—Separating solids from solids by electrostatic effect
- B03C7/02—Separators
- B03C7/023—Non-uniform field separators
-
- 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
- B03C7/00—Separating solids from solids by electrostatic effect
- B03C7/02—Separators
- B03C7/12—Separators with material falling free
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- Electrostatic Separation (AREA)
Abstract
The present invention relates to a kind of adjustable friction electrical selection sorting unit of multisection type high voltage electric field and method, electrode plate with high voltage is arranged to multistage along the height of sorting chamber, each segment electrode plate is connected by the outer wall of regulation stud and adjusting cavity, and the spacing that horizontal direction can be carried out relative to grounding electrode plate is adjusted；Adjacent two sections of electrode plate with high voltage are connected with wire, the electrode plate with high voltage access high-tension electricity of bottom；When connecting high voltage power supply, electric field is formed between sorting chamber inner high voltage battery lead plate and grounding electrode plate, when the timing of voltage one of external high voltage power supply, the distance of field strength and two-plate is inversely proportional.The device realizes the requirement to different field strength in assorting room, reduces equipment cost；The separation of complicated mineralogical composition, plastic grain and metal waste particle is can be used not only for, can be also used for the sorting of agricultural product and impurity；The efficiency of separation, which can be improved, can also increase the rate of recovery of product, while avoids pole plate and reach breakdown voltage, so that breakdown sorts electric field, improve the stability of assorting room.
Description
Technical field
The present invention relates to the gas-solid two phases technology of particle, more particularly to the adjustable friction electricity of multisection type high voltage electric field
Sorting unit and method are selected, belongs to screening installation field.It is mainly used in granular separation, such as complicated mineralogical composition, plastics
Grain and metal waste particle etc., can be also used for the separation of agricultural product and impurity, such as the sorting of cereal.
Background technology
Friction electrical selection technology be using material to be separated component dielectric matter difference and realize sorting can be used for it is multigroup
Divide the physical separation methods of fine grain sorting.Particle charge to be separated, powered side must be made during electric separation first
Method is mainly determined by the electrical properties of mineral.The electrical properties applied during electric separation mainly have resistance, dielectric constant and
Surface work function etc..
Fine particle is after frictional impact is powered, and different component carries that polarity is different, the electric charge of electricity not etc., band
Electric particle enters high voltage electric field under the carrying of air-flow.In high-voltage electrostatic field, powered material is made in electric field force and self gravitation
Deflected and separated to displacement with lower, so as to realize the separation of component.The electric field force that particle receives not only with sole mass
And carried charge is relevant, also with field strength in the electric field it is relevant.When the voltage of external high voltage power supply is certain, field strength and the two poles of the earth
The distance of plate is inversely proportional：Apart from smaller, field strength is bigger.
Sorting of the powered fine particle in high-voltage electrostatic field can be divided into two stages：Firstth, charged particle is in electricity
In deflect, in this stage, when the electric field force that particle is subject to is larger, be advantageous to reduce particle to pole plate deflect when
Between, so as to reduce the distance of particles fall；When the electric field force that particle is subject to is weaker, charged particle can not and deflection, can reduce point
Select efficiency.Secondth, particle deviation pole plate motion, in this stage, when the electric field force being subject to is larger, then particle is to pole plate direction
Movement velocity will increase, and the probability that particle contacts to be adhered on pole plate with pole plate can then increase, and be damaged so as to cause to collect
Lose.With the accumulation of particle, the particle that is adhered on pole plate forms solid layer, due to the presence of solid layer, its field strength between pole plate
To slightly it increase, so as to accelerate particle to the movement velocity in pole plate direction, particle is easier to be adhered on pole plate, forms pernicious follow
Ring, reduce the efficiency of separation.Meanwhile the increase of field strength can reduce the breakdown voltage of electric field between pole plate, so as to increase sorting electric field
The probability of breakdown, influence the progress of sorting.
In existing friction electrical selection system, in order to cost-effective, separation voltage power supply is often only a set of, and in assorting room
Can not arbitrarily it transfer, it has above mentioned problem to varying degrees.
The content of the invention
It is existing to solve the invention provides a kind of adjustable friction electrical selection sorting unit of multisection type high voltage electric field and method
Triboelectric separator sorting electric field it is single and caused by product collect have loss, sorting it is insufficient the problems such as, have sorting efficiently,
The characteristics of simple to operate, easily controllable, cost is cheap.
In order to solve the above-mentioned technical problem, present invention employs following technical scheme：Multisection type high voltage electric field is adjustable
Friction electrical selection sorting unit, including high pressure sorting chamber and the adjusting cavity for being arranged at sorting chamber side, the cavity top of the sorting chamber
End sets charging aperture bottom to set discharging opening；The sides adjacent setting electrode plate with high voltage with adjusting cavity of the sorting chamber, opposite side
Grounding electrode plate corresponding with electrode plate with high voltage is set；Grounding electrode plate is fixed on the inwall of sorting chamber, and electrode plate with high voltage is set
In in adjusting cavity；Height of the electrode plate with high voltage along sorting chamber is arranged to multistage, and each segment electrode plate passes through regulation stud
It is connected with the outer wall of adjusting cavity, the spacing that horizontal direction can be carried out relative to grounding electrode plate is adjusted；Set on electrode plate with high voltage
Binding post is put, adjacent two sections of electrode plate with high voltage are connected by binding post with wire, and the electrode plate with high voltage of bottom passes through high-voltage connecting
Terminal accesses high-tension electricity；When connecting high voltage power supply, electric field is formed between sorting chamber inner high voltage battery lead plate and grounding electrode plate, when external
The distance of the timing of voltage one of high voltage power supply, field strength and two-plate is inversely proportional.
Partial high pressure battery lead plate access high-tension electricity in the sorting chamber, the field strength not accessed now between the pole plate of high-tension electricity
It is close to 0.
Each section of electrode plate with high voltage in the sorting chamber is respectively connected to the high-tension electricity of different voltages, each section of pole plate of flexible modulation
Between field strength.
The regulation stud is through regulation cavity wall, and both are threadedly coupled, the end of its inner end and the center of electrode plate with high voltage
Be connected, outer end threaded connection adjusting nut, and adjusting nut with adjust cavity wall be connected, increased by positive and negative rotation adjusting nut or
Reduce the distance between electrode plate with high voltage and grounding electrode plate.
The grounding electrode plate is close to sort cavity wall.
The material of the high pressure sorting chamber is insulating materials.
The adjustable friction electrical selection method for separating of multisection type high voltage electric field, comprises the following steps：Charged particle is taken air-flow
Enter the adjustable friction electrical selection sorting chamber of multisection type high voltage electric field from charging aperture under band, in sorting chamber inner high voltage battery lead plate and ground connection
In the electric field formed between battery lead plate, particle is deflected by the effect of electric field force to itself powered incompatible pole plate；It is logical
Cross advance rotating adjusting nut and change the distance between pole plate, so as to adjust the electric field level between each pole plate；Particle enters different
Plate regions when, the electric field force that is subject to it is of different sizes, it is different that it is inclined to the acceleration of pole plate motion, to realize particle transverse direction
The control of yaw displacement.
Compared with existing friction electrical selection device, the present invention has advantages below：1）It is simple to operate, easy to maintenance；It is easy to control
System, sorting are efficient；2）The high pressure generator that the device uses is a set of, and realizes the requirement in assorting room to different field strength,
Reduce equipment cost；3）Have a wide range of application, can be used not only for complicated mineralogical composition, plastic grain and metal waste particle
Separation, can be also used for the sorting of agricultural product and impurity；4）The device, which can improve the efficiency of separation, can also increase the recovery of product
Rate, while avoid pole plate and reach breakdown voltage, so that breakdown sorts electric field, improve the stability of assorting room.Brief description of the drawings
Fig. 1 is the structural representation of high pressure sorting chamber of the present invention.
Fig. 2 is structural representation when each section of electrode plate with high voltage is located at same normal.
Fig. 3 is structural representation when partial high pressure electroplax plate does not connect high-tension electricity.
The mark of each part is as follows in accompanying drawing：
1st, electrode plate with high voltage；2nd, adjusting nut；3rd, regulation stud；4th, binding post；5th, wire；6th, adjusting cavity；7th, high tension terminal；
8th, discharging opening；9th, sorting chamber；10th, grounding electrode plate；11st, charging aperture.
Embodiment
With reference to the accompanying drawings and examples, the present invention is further elaborated, but protection scope of the present invention is not limited to
The content.Below in conjunction with the accompanying drawings, embodiments of the present invention are further described.
As shown in figure 1, the present invention is provided with sorting chamber 9 and the two parts of adjusting cavity 6.Wherein, the top of sorting chamber 9 is provided with charging aperture
11st, internal to be provided with least two discharging openings 8 provided with grounding electrode plate 10, bottom, grounding electrode plate 10 is being close in sorting chamber 9
Wall.The material of high pressure sorting chamber 9 is insulating materials；Adjusting cavity 9 is fixed on the side of sorting chamber 9, is threadedly coupled on its lateral wall
There are regulation stud 3, the outer end threaded connection adjusting nut 2 of regulation stud 3, adjusting nut 2 is connected with adjusting cavity 9；High-field electrode
Plate 1 divides to be connected for multistage, each section of 1 inner end respectively with regulation stud 3 of high pressure electroplax plate；On each high pressure electroplax plate 1 respectively
Binding post 4 is passed sequentially through provided with binding post 4, between adjacent electrode plate with high voltage 1 to be connected with wire 5, the electrode plate with high voltage 1 of bottom
High-tension electricity is accessed by high tension terminal 7, grounding electrode plate 10 is grounded.
When connecting high voltage power supply, in sorting chamber 9, the electric field that is formed between electrode plate with high voltage 1 and grounding electrode plate 10, when external
The distance of the timing of voltage one of high voltage power supply, field strength and two-plate is inversely proportional：Apart from smaller, field strength is bigger.It is advance according to calculating
The mode of adjusting nut 2 in rotation adjusting cavity 6 in regulation stud 3 increases or reduced electrode plate with high voltage 1 and grounding electrode plate
Between 10 distance, so as to adjust the electric field level between each section of pole plate, to meet the needs of different phase electric field level.
Embodiment 1
Sorting for granular separation, such as complicated mineralogical composition, plastic grain and metal waste particle.
As shown in figure 1, the gradually increase from top to bottom of the distance between electrode plate with high voltage 1 and grounding electrode plate 10, therefore point
The electric-field intensity in chamber 9 is selected from top to bottom gradually to weaken, charged particle can be divided into two stages in sorting：
First stage, charged particle deflect in the electric field, in this stage, when the electric field force that particle is subject to is larger, favorably
In the time that reduction particle deflects to electrode plate with high voltage 1 or grounding electrode plate 10, so as to reduce the distance of particles fall, if
When the electric field force that grain is subject to is weaker, charged particle can not deflect in time, can reduce the efficiency of separation.
Second stage, particle deviation pole plate motion, in this stage, if the electric field force being subject to is larger, particle is to pole plate
With regard to big, particle contacts and is adhered to the probability on pole plate then the movement velocity in direction with electrode plate with high voltage 1 or grounding electrode plate 10
It can increase, with the accumulation of particle, the particle being adhered on pole plate can form solid layer, due to the presence of solid layer, between pole plate
Field strength will increase, and then formed vicious circle, reduce the efficiency of separation；Meanwhile electrode plate with high voltage 1 or the bay of grounding electrode plate 10
Strong increase can reduce the breakdown voltage of electric field, so as to increase the probability of sorting electric field breakdown, influence the progress of sorting；If field strength
When smaller, avoid pole plate from reaching breakdown voltage, be unlikely to breakdown sorting electric field, improve the stability of assorting room, while also can
Improve the efficiency of separation and increase product recovery rate.During work, charged particle enters sorting chamber under the carrying of air-flow from charging aperture 8
In 9, particle is deflected by the effect of electric field force to itself powered incompatible pole plate；Particle enters different pole plate areas
During domain, of different sizes, the acceleration difference of its deviation pole plate motion, to realize particle lateral deflection displacement for the electric field force being subject to
Control；After sorting, the grain products of the same race isolated are discharged from discharging opening 8, into collection device.
Embodiment 2
As shown in Fig. 2 according to the difference of sorting material, and the difference that sorting requires, each electrode plate with high voltage 1 in sorting chamber 9 with
Electric field between grounding electrode plate 10 can also be identical.Electrode plate with high voltage 1 is equal with the distance between grounding electrode plate 10, and high pressure
Battery lead plate 1 accesses same high voltage power supply.Different high voltage power supplies can also be respectively connected to by each section of electrode plate with high voltage 1 to be adjusted
Section.
Embodiment 3
With the separation with agricultural product and impurity, such as the sorting of cereal.
As shown in figure 1, embodiment 3 is identical with the connected mode and operation principle of embodiment 1, its main distinction is point
Select the partial high pressure battery lead plate 1 in chamber 9 can not access high-tension electricity, now the field strength between this section of pole plate is close to 0.
Now perpendicular to electrode plate with high voltage 1 and the direction of grounding electrode plate 10, as cereal and impurity by uniform motion so as to
The probability and speed being reduced to when reaching pole plate, and then reduce the energy of cereal and pole plate collision reaction, reduce cereal enter it is miscellaneous
Possibility in matter；Meanwhile also reduce the damage to equipment, extension device service life.
Embodiment described above is only the preferred embodiment of the present invention, it is noted that for the general of the art
For logical technical staff, under the premise without departing from the principles of the invention, improvements and modifications can also be made, these improvements and modifications
Also it should be regarded as protection scope of the present invention.
Claims (7)
- A kind of 1. adjustable friction electrical selection sorting unit of multisection type high voltage electric field, it is characterised in that：Including high pressure sorting chamber and set The adjusting cavity of sorting chamber side is placed in, the cavity top end of the sorting chamber sets charging aperture bottom to set discharging opening；The sorting The sides adjacent setting electrode plate with high voltage with adjusting cavity of chamber, opposite side set grounding electrode plate corresponding with electrode plate with high voltage；Connect Ground electrode plate is fixed on the inwall of sorting chamber, and electrode plate with high voltage is arranged in adjusting cavity；The electrode plate with high voltage is along sorting chamber Multistage is highly arranged to, each segment electrode plate is connected by the outer wall of regulation stud and adjusting cavity, can be relative to ground connection electricity Pole plate carries out the spacing regulation of horizontal direction；Binding post is set on electrode plate with high voltage, and adjacent two sections of electrode plate with high voltage pass through wiring Post is connected with wire, and the electrode plate with high voltage of bottom accesses high-tension electricity by high tension terminal；When connecting high voltage power supply, sorting chamber Electric field is formed between inner high voltage battery lead plate and grounding electrode plate, when the timing of voltage one of external high voltage power supply, field strength and two-plate Distance is inversely proportional.
- 2. the adjustable friction electrical selection method for separating of multisection type high voltage electric field according to claim 1, it is characterised in that：It is described Partial high pressure battery lead plate access high-tension electricity in sorting chamber, the field strength not accessed now between the pole plate of high-tension electricity are close to 0.
- 3. the adjustable friction electrical selection method for separating of multisection type high voltage electric field according to claim 1, it is characterised in that：It is described Each section of electrode plate with high voltage in sorting chamber is respectively connected to the high-tension electricity of different voltages.
- 4. the adjustable friction electrical selection method for separating of multisection type high voltage electric field according to claim 1, it is characterised in that：It is described Regulation stud is through regulation cavity wall, and both are threadedly coupled, and the end of its inner end and the center of electrode plate with high voltage are connected, outer end screw thread Adjusting nut is connected, and adjusting nut is connected with regulation cavity wall, increases or reduce high-field electrode by positive and negative rotation adjusting nut Distance between plate and grounding electrode plate.
- 5. the adjustable friction electrical selection method for separating of multisection type high voltage electric field according to claim 1, it is characterised in that：It is described Grounding electrode plate is close to sort cavity wall.
- 6. the adjustable friction electrical selection method for separating of multisection type high voltage electric field according to claim 1, it is characterised in that：It is described The material of high pressure sorting chamber is insulating materials.
- 7. using the adjustable friction electrical selection of multisection type high voltage electric field of the device described in claim 1-6 any one claims Method for separating, it is characterised in that：The adjustable friction electrical selection method for separating of multisection type high voltage electric field, comprises the following steps：Powered Grain enters the adjustable friction electrical selection sorting chamber of multisection type high voltage electric field under the carrying of air-flow from charging aperture, in sorting chamber inner high voltage In the electric field formed between battery lead plate and grounding electrode plate, particle by electric field force effect and to powered incompatible with itself Pole plate deflects；Distance between pole plate is changed by advance rotating adjusting nut, so as to adjust the electric field level between each pole plate； When grain enters different plate regions, of different sizes, the acceleration difference of its deviation pole plate motion, with reality for the electric field force being subject to The control of existing particle lateral deflection displacement.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710532904.2A CN107457082B (en) | 2017-07-03 | 2017-07-03 | The adjustable friction electrical selection sorting unit of multisection type high voltage electric field and method |
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| CN201710532904.2A CN107457082B (en) | 2017-07-03 | 2017-07-03 | The adjustable friction electrical selection sorting unit of multisection type high voltage electric field and method |
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| CN107457082B CN107457082B (en) | 2019-09-03 |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108480053A (en) * | 2018-02-08 | 2018-09-04 | 中国矿业大学 | A kind of Nonlinear Electric Field self-checking device of friction electrical selection |
| CN108940599A (en) * | 2018-08-01 | 2018-12-07 | 中国矿业大学 | A kind of particle electrification separation system |
| CN109453900A (en) * | 2018-10-16 | 2019-03-12 | 韩颜涛 | Electrostatic separator |
| CN109590779A (en) * | 2018-11-23 | 2019-04-09 | 佛山振鹭智能设备有限公司 | A kind of multisection type feeding pressure mechanism |
| CN109603973A (en) * | 2018-12-04 | 2019-04-12 | 青海泰宁水泥有限公司 | Composite Portland cement preparation facilities and preparation method thereof |
| CN109622128A (en) * | 2018-12-04 | 2019-04-16 | 青海泰宁水泥有限公司 | It is exclusively used in preparing the device and preparation method of high sulfuric-resisting portland cement |
| CN109622129A (en) * | 2018-12-04 | 2019-04-16 | 青海泰宁水泥有限公司 | Prepare the device and preparation method of cement additive |
| CN111386866A (en) * | 2020-03-26 | 2020-07-10 | 江苏大学 | Static cleaning device for rice threshing mixture grains and combine harvester |
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| CN108480053A (en) * | 2018-02-08 | 2018-09-04 | 中国矿业大学 | A kind of Nonlinear Electric Field self-checking device of friction electrical selection |
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| CN109603973A (en) * | 2018-12-04 | 2019-04-12 | 青海泰宁水泥有限公司 | Composite Portland cement preparation facilities and preparation method thereof |
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| CN109622129A (en) * | 2018-12-04 | 2019-04-16 | 青海泰宁水泥有限公司 | Prepare the device and preparation method of cement additive |
| CN111386866A (en) * | 2020-03-26 | 2020-07-10 | 江苏大学 | Static cleaning device for rice threshing mixture grains and combine harvester |
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| Publication number | Publication date |
|---|---|
| CN107457082B (en) | 2019-09-03 |
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