JP2000254548A - Apparatus for classifying particle by electric field - Google Patents

Abstract

PROBLEM TO BE SOLVED: To select a conductive particle which is inductively charged in a constant electric field, from a conductive particle which is not inductively charge and an insulating particle. SOLUTION: This apparatus is constituted of a carrying and supporting body 7 for supplying a conductive particle 1, a selection electrode 3 supported by a carrying and supporting body 7, an upper part electrode 2 so installed on the opposite to the selection electrode 3 at a gap A as to generate an electric field between the selection electrode 3 and itself and reciprocate the conductive particle 1 along the electric field, a lower part electrode 4 so installed on the opposite to the upper part electrode 2 at a gap A and on the opposite to the selection electrode 3 at a gap B as to generate an electric field between the upper part electrode 2 and itself, a collecting apparatus 5 for recovering the conductive particle 1 reciprocated by the electric field between the upper part electrode 2 and the selection electrode 3, and an electric power source 6 for applying voltage to the upper part electrode 2 and the apparatus is further provided with an air current generating means (not illustrated in the figure) for generating air current in an air flow path C.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a particle electric field sorting apparatus for sorting particles in accordance with electric characteristics, and more particularly to a particle electric field sorting apparatus for sorting conductive particles which undergo inductive charging in an electric field.

[0002]

2. Description of the Related Art Generally, a method for producing conductive particles involves mixing and dispersing base particles and conductive fine particles in a high-temperature airflow to fix the conductive fine particles on the surface of the base particles and to form the conductive fine particles. The conductive fine particles are further firmly adhered to the surface of the base particles by applying an impact force to the base particles to which the particles have adhered using a high-speed flow stirrer such as a hybridizer (manufactured by Nara Machine) or a mechanofusion (manufactured by Hosokawa Micron). Methods are known.

However, in the conductive particles obtained by the above-described manufacturing method, the electric characteristics vary among the individual particles. In particular, when the ratio of the conductive fine particles to the base particles is small, the electric characteristics greatly vary. There is a problem that it becomes.

For this reason, in recent years, a sorting apparatus for sorting particles according to electrical characteristics has been devised. For example, an apparatus for sorting toner particles according to electrical properties has been proposed in Japanese Patent Laid-Open No. Hei.
No. 1782.

FIG. 5 shows an example of a conventional toner particle sorting apparatus.

In this conventional example, as shown in FIG. 5, a toner supply unit 501 to which toner particles are supplied, a housing 509 in which toner particles are sorted inside, a toner supply unit 5
A toner supply path 502 through which toner particles supplied from the housing 01 are supplied to the housing 509 and an outer wall of the housing 509 are provided so as to face each other, and a voltage is applied by voltage applying means (not shown). As a result, the electrodes 513a, which deflect the toner particles by forming a constant electric field in a direction orthogonal to the central axis of the toner introduction path 502,
513b, a separation wall 516 provided inside the housing 509 and arranged to separate the toner particles as a reference value of the amount of deflection of the toner particles deflected by the constant electric field, and deflected by the constant electric field. The collecting device 517 is configured to collect the toner particles having a larger deflection amount than the separation wall 516 among the toner particles.

[0007] In the conventional example configured as described above, the toner particles supplied from the toner supply unit 501 are:
The air is supplied to the inside of the housing 509 via the toner introduction path 502, and is further conveyed downward inside the housing 509 by the air flow generated by the air flow generating means (not shown). The toner particles transported downward inside the housing 509 are deflected by a constant electric field formed in a direction perpendicular to the central axis of the toner introduction path 502 by applying a voltage to the electrodes 513a and 513b, and the amount of deflection is reduced. The toner particles deflected more than the separation wall 516 that is the reference value are separated from the toner particles having good chargeability and collected by the collection device 517.

As described above, in the conventional example, the toner particles are classified into toner particles having good chargeability and toner particles having poor chargeability based on the value of the specific charge amount q / m. .

[0009]

However, in the above-described conventional particle electric field sorting apparatus, since the sorting is performed based on the chargeability of the particles, the conductive particles which are inductively charged in a constant electric field, Insulating particles having the same specific charge as the conductive particles will be regarded as the same particles,
There is a problem that both cannot be sorted out.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems of the prior art, and includes conductive particles that are inductively charged in a constant electric field, conductive particles that are not inductively charged, and insulating particles. An object of the present invention is to provide a particle electric field sorting device capable of sorting particles.

[0011]

In order to achieve the above object, the present invention has a plurality of electrodes for generating an electric field, and the conductive particles to be introduced are formed by using the electric field generated by the plurality of electrodes. An electric field sorting apparatus for sorting particles, comprising: a first electrode to which a predetermined potential is applied; and a second electrode provided in parallel to face the first electrode at a predetermined interval. Electrode, the first electrode and the second electrode
An air passage formed between the electrodes, an air flow generating means for generating an air flow for conveying the conductive particles in the air passage, and collecting the particles conveyed through the air passage. And a collector. In addition, the second
Downstream of the electrode in the transport direction of the conductive particles,
A third electrode provided at a predetermined distance from the first electrode.

In the second electrode, the upstream end of the conductive particles in the transport direction of the conductive particles may be transported more than the upstream end of the first electrode in the transport direction of the conductive particles. It is provided to be on the downstream side in the direction.

Further, a part of the first electrode and a part of the second electrode are constituted by a rotatable conductive belt.

Further, a part of the first electrode is constituted by a rotatable conductive roller, and a part of the second electrode is constituted by a rotatable conductive belt. Further, a part of the first electrode is constituted by a rotatable conductive belt, and a part of the second electrode is constituted by a rotatable conductive roller. Further, a part of the first electrode and a part of the second electrode are constituted by rotatable conductive rollers.

Further, the conductive belt has means for cleaning the surface of the conductive belt.

Further, the conductive roller has means for cleaning the surface of the conductive roller.

In the second electrode, the upstream end of the conductive particles in the transport direction of the conductive particles may be transported more upstream than the upstream end of the first electrode in the transport direction of the conductive particles. It is provided to be on the upstream side in the direction.

Further, there is provided a particle transport means for supporting the second electrode, and the particles are transported on the second electrode by applying a periodic vibration to the second electrode. And

[0019] Further, the invention is characterized in that the direction of the air flow when the particles collected by the air flow are collected by the collector is downward.

Further, the plurality of electrodes form the electric field when a DC voltage is applied.

(Function) In the present invention configured as described above, when the conductive particles are supplied to the electric field formed by the plurality of electrodes, the particles charged by the electric field reciprocate between the electrodes. Then, the conductive particles are collected in the collector by an air flow generated in a direction orthogonal to the electric field.

As described above, since the conductive particles which are reciprocated by receiving the induction charge by the electric field by using the air flow are collected, the conductive particles which are inductively charged, the conductive particles which are not inductively charged and the insulating particles are provided. Particles can be sorted with high accuracy and high speed.

[0023]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a particle electric field sorting apparatus according to the present invention will be described below with reference to the drawings.

(First Embodiment) FIG. 1 is a sectional view showing a first embodiment of a sorting section provided in a particle electric field sorting apparatus of the present invention.

In this embodiment, as shown in FIG. 1, a transport support 7 serving as a particle transport means for supplying the conductive particles 1 to the sorting section.
And a sorting electrode 3 which is a second electrode supported by the carrier support 7 and set to the ground potential, and is provided in parallel with the sorting electrode 3 so as to face the sorting electrode 3 at a predetermined interval A, When a predetermined voltage is applied, a constant electric field is formed between the electrode and the selection electrode 3, and the conductive particles 1 supplied to the selection section by the transport support 7 are inductively charged and reciprocate along the constant electric field. The upper electrode 2 which is the first electrode to be provided is provided in parallel with the upper electrode 2 so as to face the upper electrode 2 with an interval A, and is downstream of the sorting electrode 3 in the transport direction of the conductive particles 1. , A lower electrode 4 which is a third electrode which is set to the ground potential and forms a constant electric field with the upper electrode 2, and a constant electrode between the upper electrode 2 and the sorting electrode 3. The conductive particles 1 reciprocated by the electric field are collected. Collector 5 and a power supply 6 for applying a voltage to the upper electrode 2, and the conductive particles 1 are transported to the collector 5 from the upper electrode 2, the sorting electrode 3 and the lower electrode 4. A road C is formed.

An air flow generating means (not shown) for generating an air flow in the air passage C for transporting the conductive particles 1
Is provided.

The air flow generated by the air flow generating means flows from the entrance of the selection unit to the space between the upper electrode 2 and the selection electrode 3, between the upper electrode 2 and the lower electrode 4, to the inside of the collector 5. , And then flow out of the air passage D provided in the collector 5.

After the conductive particles 1 are supplied to the entrance of the sorting section by the carrier 7, the air flow causes the conductive particles 1 to flow between the upper electrode 2 and the sorting electrode 3 and between the upper electrode 2 and the lower electrode 4. And collected by the collector 5. At this time, since the collector 5 is configured so that the flow of the air flowing from the lower electrode 4 into the collector 5 is directed downward, the conductive particles 1 transported in the air passage C are collected. Is not discharged together with air from an air passage D provided in the collector 5
Collected inside.

As the air flow generating means, the air path C can be formed by sucking the air in the collector 5 using a general pump. Here, a portion other than the gap X, which is the entrance of the sorting section, and the gap Y between the sorting electrode 3 and the lower electrode 4 is hermetically sealed so that air is not leaked. , Upper electrode 2
An air passage C can be formed in which the collector 5 efficiently collects the conductive particles 1 induced and charged by the electric field formed between the electrode and the sorting electrode 3. Further, since the amount of air sucked in the collector 5 can be reduced, the conductive particles 1 collected in the collector 5 are not easily discharged together with air from the air passage D provided in the collector 5. have.

As a means for supplying the conductive particles 1 to the sorting section, there is a method of applying a periodic vibration to the carrier 7 and the sorting electrode 3 using a vibration feeder (manufactured by Shinko Electric Co., Ltd.) or the like. In addition, as a means (not shown) for supplying the conductive particles 1 to the carrier 7, a general powder supply device can be used, and there is no particular limitation.

On the entrance side of the sorting section, the end of the sorting electrode 3 is located downstream of the end of the upper electrode 2 in the direction of transport of the conductive particles 1. Scattering of the conductive particles 1 can be suppressed. When the end of the sorting electrode 3 is located on the upstream side in the transport direction of the conductive particles 1 from the end of the upper electrode 2 on the entrance side of the sorting unit, the conductive particles 1 are transported to the gap X. Before the contact, the conductive particles 1 are attached to the sorting electrode 3, so that the conductive particles 1 may adhere to the side surface of the upper electrode 2.

As a material constituting each of the upper electrode 2, the selection electrode 3, and the lower electrode 4, a metal such as brass or stainless steel is preferably used. A metal vapor-deposited film formed by a method or the like, or a film that is plated may be used.

As the voltage applied to the upper electrode 2 by the power supply 6, a DC voltage is preferably used, but a superimposed voltage obtained by superimposing an AC voltage on a DC voltage or only an AC voltage may be used.

In the particle electric field sorting apparatus configured as described above, the conductive particles 1 are moved between the upper electrode 2 and the sorting electrode 3 inside the sorting section by the vibration of the carrier 7 supporting the sorting electrode 3. It is supplied to the gap X. The conductive particles 1 supplied to the gap portion X are inductively charged by a constant electric field formed between the upper electrode 2 and the sorting electrode 3 in a direction orthogonal to the direction in which the conductive particles 1 are transported, and It reciprocates between the sorting electrodes 3. The conductive particles 1 that do not undergo inductive charging and do not reciprocate in the constant electric field are held on the sorting electrode 3, transported along the sorting electrode 3, and have a gap Y between the sorting electrode 3 and the lower electrode 4. And is collected by a collector (not shown). On the other hand, the conductive particles 1 reciprocating between the upper electrode 2 and the sorting electrode 3 are formed between the upper electrode 2 and the lower electrode 4 by the air flow generated by the air flow generating means. The collected electric field passes through the collected electric field.

As described above, the conductive particles 1 are subjected to induction charging in a constant electric field, reciprocate in the constant electric field, and the reciprocating conductive particles 1 are collected by an air flow. It is possible, and the sorting speed can be improved.

(Second Embodiment) FIG. 2 is a sectional view showing a second embodiment of a sorting section provided in the particle electric field sorting apparatus of the present invention.

In this embodiment, as shown in FIG. 2, a part of the selection electrode 3 and a part of the upper electrode 2 are formed in a belt-like configuration with respect to the one shown in FIG.

As shown in FIG. 2, a part of the sorting electrode 3 is
An upper electrode 2 comprises a belt-shaped sorting electrode 8b and a lower blade 9b which comes into contact with the belt-shaped sorting electrode 8b and scrapes the conductive particles 1 on the belt-shaped sorting electrode 8b into a collector (not shown). Are part of the belt-shaped upper electrode 8a,
An upper blade 9a is in contact with the belt-shaped upper electrode 8a and scrapes the conductive particles 1 on the belt-shaped upper electrode 8a onto the sorting electrode 3.

The belt-like upper electrode 8a and the belt-like sorting electrode 8b are supported by two rotatable rollers, and can rotate at any speed.

The sorting electrode 3 and the belt-like sorting electrode 8b are set to the ground potential, and the belt-like upper electrode 8a
Further, a voltage is applied to the upper electrode 2 by the power supply 6, and a constant electric field is formed between the belt-shaped upper electrode 8a and the belt-shaped sorting electrode 8b. Voltage application to the belt-shaped upper electrode 8a and the belt-shaped sorting electrode 8b is performed via a roller that supports the belt-shaped electrode.

As a material for forming the belt-shaped upper electrode 8a and the belt-shaped selection electrode 8b, a metal belt such as stainless steel is preferably used, and the metal belt is formed on the surface of a polyethylene terephthalate (PET) film by sputtering or vapor deposition. What formed the thin film may be used.

On the entrance side of the sorting section, the end of the sorting electrode 3 is formed on the upstream side in the transport direction of the conductive particles 1 from the end of the upper electrode 2, whereby the conductive particles 1 Sorting can be performed stably. At the entrance side of the sorting section, when the end of the sorting electrode 3 is arranged downstream of the end of the upper electrode 2 in the transport direction of the conductive particles 1, the particles having low conductivity or insulating near the gap X Since the conductive particles and the like easily adhere to the sorting electrode 3, there is a possibility that the conductive particles 1 may become an obstacle to transport.

In the particle electric field sorting apparatus configured as described above, the conductive particles 1 are separated from the belt-like upper electrode 8a inside the sorting section by the vibration of the carrier 7 supporting the sorting electrode 3. It is supplied to the gap X with the electrode 8b. The conductive particles 1 supplied to the gap X are induced-charged by a constant electric field formed between the belt-shaped upper electrode 8a and the belt-shaped sorting electrode 8b in a direction orthogonal to the direction in which the conductive particles 1 are transported. Then, it reciprocates between the belt-shaped upper electrode 8a and the belt-shaped sorting electrode 8b. Conductive particles 1 that are not inductively charged and do not reciprocate in the constant electric field
Is partially held on the belt-shaped sorting electrode 8b, transported along the belt-shaped sorting electrode 8b, scraped off by the lower blade 9b, and collected by a collector (not shown).
A part of the adhesive adheres to the belt-shaped upper electrode 8a, is conveyed along the belt-shaped upper electrode 8a, is scraped off by the upper blade 9a, is again supplied to the gap X, and is connected to the belt-shaped upper electrode 8a. It receives a constant electric field formed between it and the selection electrode 8b. On the other hand, the conductive particles 1 reciprocating between the belt-shaped upper electrode 8a and the belt-shaped sorting electrode 8b are formed on the upper electrode 2 and the lower electrode 4 by the air flow generated by the air flow generating means. The collected electric field passes through the collected electric field.

(Third Embodiment) FIG. 3 is a sectional view showing a third embodiment of a sorting section provided in the particle electric field sorting apparatus of the present invention.

In this embodiment, as shown in FIG. 3, a part of the selection electrode 3 and a part of the upper electrode 2 are formed in a roller shape with respect to the one shown in FIG.

As shown in FIG. 3, a part of the sorting electrode 3 is
Roller-like sorting electrode 10b and roller-like sorting electrode 10
b and the conductive particles 1 on the roller-shaped sorting electrode 10b
And a lower blade 9b that scrapes the upper electrode 2 into a collector (not shown). A part of the upper electrode 2 is in contact with the upper roller electrode 10a and the upper roller electrode 10a. Electrode 3
The upper blade 9a is scraped upward.

The roller-shaped upper electrode 10a and the roller-shaped sorting electrode 10b can be rotated at any speed.

The sorting electrode 3 and the roller-shaped sorting electrode 10b are set to the ground potential, the upper electrode 2 and the roller-shaped upper electrode 10a are applied with a voltage by the power source 6, and the roller-shaped upper electrode 10a and the roller-shaped upper electrode
0b, a constant electric field is formed.

As a material for forming the roller-shaped upper electrode 10a and the roller-shaped sorting electrode 10b, a metal such as stainless steel is preferably used, and a conductive rubber roller or a plastic whose surface is subjected to a conductive treatment is used. You may.

In the particle electric field sorting apparatus constructed as described above, the conductive particles 1 are separated from the roller-shaped upper electrode 10a inside the sorting section by the vibration of the carrier 7 supporting the sorting electrode 3. It is supplied to the gap X with the electrode 10b. The conductive particles 1 supplied to the gap portion X are inductively charged by a constant electric field formed between the roller-shaped upper electrode 10a and the roller-shaped sorting electrode 10b, and the roller-shaped upper electrode 10a and the roller-shaped sorting electrode 10b are electrically charged. Reciprocate between The conductive particles 1 that do not reciprocate in the constant electric field are partially held on the roller-like sorting electrode 10b, conveyed along the roller-like sorting electrode 10b, scraped off by the lower blade 9b, and collected by the collector ( (Not shown), part of which is a roller-shaped upper electrode 10a.
After being transported along the roller-shaped upper electrode 10a, it is scraped off by the upper blade 9a, supplied again to the gap X, and formed between the roller-shaped upper electrode 10a and the roller-shaped sorting electrode 10b. Receive a constant electric field. On the other hand, the conductive particles 1 reciprocating between the electrodes of the roller-shaped upper electrode 10a and the roller-shaped sorting electrode 10b.
Is, by the air flow generated in the air flow generation means,
After passing through the electric field formed on the upper electrode 2 and the lower electrode 4,
Collected in the collector 5.

(Fourth Embodiment) FIG. 4 is a sectional view showing a fourth embodiment of a sorting section provided in the particle electric field sorting apparatus of the present invention.

In this embodiment, as shown in FIG. 4, a part of the selection electrode 3 has a belt-like configuration in comparison with the one shown in FIG.
A part of the upper electrode 2 has a roller-like configuration.

As shown in FIG. 4, a part of the sorting electrode 3 is
An upper electrode 2 comprises a belt-shaped sorting electrode 8b and a lower blade 9b which comes into contact with the belt-shaped sorting electrode 8b and scrapes the conductive particles 1 on the belt-shaped sorting electrode 8b into a collector (not shown). Of the roller-shaped upper electrode 10
a, an upper blade 9a that contacts the roller-shaped upper electrode 10a and scrapes the conductive particles 1 on the roller-shaped upper electrode 10a onto the sorting electrode 3.

The sorting electrode 3 and the belt-shaped sorting electrode 8b are set to the ground potential, and the upper electrode 2 and the roller-shaped upper electrode 10a are applied with a voltage by the power source 6,
A constant electric field is formed between the roller-shaped upper electrode 10a and the belt-shaped sorting electrode 8b. In the particle electric field sorting device configured as described above, the conductive particles 1 are separated from the roller-shaped upper electrode 10a and the belt-shaped sorting electrode 8b inside the sorting unit by the vibration of the transport support 7 that supports the sorting electrode 3. Is supplied to the gap portion X of. The conductive particles 1 supplied to the gap X are inductively charged by a constant electric field formed between the roller-shaped upper electrode 10a and the belt-shaped sorting electrode 8b,
It reciprocates between the roller-shaped upper electrode 10a and the belt-shaped sorting electrode 8b. The conductive particles 1 that are not inducedly charged and do not reciprocate in the constant electric field are partially held on the belt-shaped sorting electrode 8b, conveyed along the belt-shaped sorting electrode 8b, and scraped off by the lower blade 9b. After being collected by a collector (not shown), a part thereof adheres to the roller-shaped upper electrode 10a, is conveyed along the roller-shaped upper electrode 10a, and is scraped off by the upper blade 9a. X, and the roller-shaped upper electrode 1
0a and a constant electric field formed between the belt-shaped sorting electrode 8b. The conductive particles 1 reciprocating between the roller-shaped upper electrode 10a and the belt-shaped sorting electrode 8b are formed on the upper electrode 2 and the lower electrode 4 by the air flow generated by the air flow generating means. The collected electric field passes through the collected electric field.

As described above, in the second, third and fourth embodiments, a part of the configuration of the upper electrode 2 and the selection electrode 3 is a belt-shaped or roller-shaped electrode, and a blade or the like is attached to the electrode. Even if the conductive particles 1 are fixed to each electrode, the fixed conductive particles 1 are transported with the rotation of the belt and the roller, and are always cleaned by the cleaning means. Therefore, the surface of the electrode is always in the same state irrespective of the sorting time, and stable sorting of the conductive particles 1 can be performed.

It is to be noted that a part of the sorting electrode 3 is changed to a roller shape, a part of the upper electrode 2 is changed to a belt shape, and a blade is applied to each changed member. The same effect as that shown in FIG. 4 can be obtained in the configuration in which the contact is made.

[0057]

As described above, according to the present invention, when conductive particles are supplied to an electric field formed by a plurality of electrodes, the conductive particles inductively charged by the electric field reciprocate between the electrodes. Since the conductive particles are collected in the collector by an air flow generated in a direction perpendicular to the electric field, the conductive particles to be inductively charged and the conductive particles to be inductively charged and the insulating Particles can be sorted with high accuracy and high speed.

[Brief description of the drawings]

FIG. 1 is a sectional view showing a first embodiment of a sorting unit provided in a particle electric field sorting apparatus of the present invention.

FIG. 2 is a cross-sectional view illustrating a second embodiment of a sorting unit provided in the particle electric field sorting apparatus of the present invention.

FIG. 3 is a sectional view showing a third embodiment of a sorting unit provided in the particle electric field sorting apparatus of the present invention.

FIG. 4 is a sectional view showing a fourth embodiment of a sorting unit provided in the particle electric field sorting apparatus of the present invention.

FIG. 5 is a configuration diagram of a conventional toner particle sorting apparatus.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Conductive particle 2 Upper electrode 3 Sorting electrode 4 Lower electrode 5 Collector 6 Power supply 7 Carrier 8a Belt-like upper electrode 8b Belt-like sorting electrode 9a Upper blade 9b Lower blade 10a Roller-like upper electrode 10b Roller-like lower electrode C , D Air passage X, Y Air gap

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Kenshi Hori 5-7-1 Shiba, Minato-ku, Tokyo Inside NEC Corporation (72) Inventor Tomoyuki Yoshii 5-7-1 Shiba, Minato-ku, Tokyo Japan F-term (reference) in Electric Company 2H005 AB09 DA09 4D054 GA01 GB01 GB03 GB06 GB09 GB10

Claims (13)

[Claims] 1. A particle electric field sorting apparatus, comprising: a plurality of electrodes for generating an electric field; and selecting conductive particles to be introduced by using an electric field generated by the plurality of electrodes. A first electrode to be applied; a second electrode provided in parallel with the first electrode so as to face the first electrode at a predetermined interval; the first electrode and the second electrode And an air flow generating means for generating an air flow for transporting the conductive particles in the air path; and a collecting means for collecting the particles transported in the air path. And a particle electric field sorting device. 2. The particle electric field sorting device according to claim 1, wherein a downstream side of the second electrode in a direction in which the conductive particles are transported,
A particle electric field sorting apparatus comprising a third electrode provided at a predetermined distance from the second electrode. 3. The particle electric field sorting apparatus according to claim 1, wherein the second electrode has an end portion on the upstream side in the transport direction of the conductive particles, and the second electrode has the conductive property of the first electrode. A particle electric field sorting apparatus provided so as to be located on the downstream side in the transport direction of the conductive particles from the upstream end portion in the transport direction of particles. 4. The particle electric field sorting apparatus according to claim 1, wherein a part of the first electrode and a part of the second electrode are:
A particle electric field sorting device comprising a rotatable conductive belt. 5. The particle electric field sorting apparatus according to claim 1, wherein a part of the first electrode is constituted by a rotatable conductive roller, and a part of the second electrode is rotated. A particle electric field sorting device comprising a conductive belt capable of being used. 6. The particle electric field sorting apparatus according to claim 1, wherein a part of the first electrode is formed of a rotatable conductive belt, and a part of the second electrode is rotated. A particle electric field sorting device comprising a conductive roller capable of being used. 7. The particle electric field sorting device according to claim 1, wherein a part of the first electrode and a part of the second electrode are:
A particle electric field sorting device comprising a rotatable conductive roller. 8. The particle electric field sorting apparatus according to claim 4, wherein the conductive belt has means for cleaning a surface of the conductive belt. apparatus. 9. The particle electric field sorting apparatus according to claim 5, wherein the conductive roller has means for cleaning a surface of the conductive roller. apparatus. 10. The particle electric field sorting apparatus according to claim 4, wherein the second electrode has an end on the upstream side in the transport direction of the conductive particles that is opposite to the first electrode. A particle electric field sorting apparatus provided so as to be located on the upstream side in the transport direction of the conductive particles from the upstream end in the transport direction of the conductive particles. 11. The particle electric field sorting device according to claim 1, further comprising: a particle transporting unit that supports the second electrode.
A particle vibration is applied to the second electrode, whereby particles are transported on the second electrode. 12. The particle electric field sorting apparatus according to claim 1, wherein the direction of the air flow when the particles collected by the air flow are collected by the collector is downward. A particle electric field sorting apparatus. 13. The particle electric field sorter according to claim 1, wherein the plurality of electrodes form the electric field by applying a DC voltage. Sorting device.