JPH1147632A - Magnetic separation device for suspension liquid - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enhance efficiencies of separation and removal of heavy metallic ions from suspension liquid and also to suppress saturation and clogging of a filter part in a short time. SOLUTION: This magnetic separation device is provided with a metallic ion separation part 5 for separating the metallic ions 7 from the suspension liquid fed from a suspension liquid feed pipe 3 for feeding the suspension liquid 8 containing magnetic bodies 6 and the metallic ions 7, a metallic ion recovering part for recovering the metallic ions 7 separated with the separation part 5, a treating cylinder 2 for allowing the suspension liquid 8 to flow on a downstream side of the metallic ion separation part 5, a filter arranged in the treating cylinder 2 and being constituted of the magnetic bodies 6 magnetized with a superconductive solenoid magnet 13.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a suspension magnetic separation apparatus for separating and removing suspended particles from a suspension containing suspended particles such as domestic wastewater and industrial wastewater by using magnetic attraction.

[0002]

2. Description of the Related Art In general, household wastewater, sewage, industrial wastewater, and the like contain a large amount of oxides of heavy metals such as iron and metals, and suspended substances (also referred to as suspended particles) of organic substances and minerals. I have. Therefore, it is important in wastewater treatment to separate and remove suspended particles from a waste liquid (suspension) or wastewater containing such suspended particles.

As an example of such an apparatus for separating and removing suspended particles from a suspension, there is an apparatus utilizing the magnetism (ferromagnetic or weak magnetism) of suspended particles. That is, a magnetic field (magnetic field gradient) is externally applied to a suspension or drainage containing suspended particles having magnetism (hereinafter also referred to as magnetic particles), and the magnetic particles are generated by magnetic attraction based on the magnetic field gradient. It is to be separated and removed.

When a magnetic separation device is used, if the suspension is factory wastewater, suspended particles contain many oxides of iron and heavy metals, that is, a large amount of magnetic substances, and thus these magnetic substances can be separated and removed with high efficiency. However, when the suspension is general domestic wastewater or sewage, the suspended particles contained in the suspension in large amounts are nonmetallic substances such as organic substances and minerals. Cannot be directly separated and removed by a magnetic separation device. Therefore, first, a small amount of magnetic particles and a condensing agent are charged into the suspension, and an aggregate having magnetic particles as nuclei (hereinafter, referred to as magnetic floc) is created. Then, a magnetic attraction is applied to the suspension containing the magnetic flocs to separate and remove the magnetic flocs.

Meanwhile, in such a suspension magnetic separating device, the magnetic force F _m that acts on the magnetic particles is proportional to the magnitude of the magnetic field gradient and the magnetic field as shown in the following equation (1).

[0006]

[Number 1] _{F m = V p χ p ·} H · gradH ...... (1) where the magnetic susceptibility of the V _p is the volume of suspended particles, chi _p is suspended particles, H is the magnetic field magnitude, gradH Represents the gradient of the magnetic field H. From this equation (1), it can be seen that the magnetic force acting on the magnetic particles is proportional to the volume and magnetic susceptibility of the suspended particles (magnetic particles) and the magnitude of the applied magnetic field and the magnetic field gradient. Therefore, among the above-described magnetic particles, the heavy metal particles having a small magnetization and a small volume are weak magnetic particles having a diameter of several microns, for example.In order to separate the heavy metal particles, a large magnetic field gradient is generated. it is necessary to increase the magnetic force F _m and further applying a high magnetic field.

For this reason, there is a suspension magnetic separation apparatus using a superconducting magnet such as a superconducting solenoid magnet in order to obtain a high magnetic field gradient and a high magnetic field.

FIG. 6 shows the structure of a conventional suspension magnetic separation apparatus 101 of this type. The suspension magnetic separation device 101 includes a superconducting solenoid magnet 103 which generates a magnetic field (high magnetic field) of, for example, 3 Tesla to 10 Tesla, which is 10 times or more larger than that of a normal conducting magnet, on the outer periphery of a processing cylinder 102 for separating and removing particles. Are disposed concentrically, and the processing tube 102 is installed in the strong magnetic field space. A filter unit 104 is provided inside the processing tube 102. The filter unit 104 has a structure in which meshes of ferromagnetic wires having a diameter of several tens to several hundreds of microns are laminated. However, there are also filters made of steel wool.

According to the magnetic separator 101 configured as described above, when the superconducting solenoid magnet 103 is excited,
Suspended particles (shown by small circles) 10 in the suspension 106 introduced into the processing cylinder 102 via the suspension supply pipe 105
7 is magnetized by the strong magnetic field space of the superconducting solenoid magnet 103.

On the other hand, the ferromagnetic wire of the filter unit 104 of the processing cylinder 102 is also magnetized by the strong magnetic field space of the superconducting solenoid magnet 103, and the filter unit 104
Since the diameter of the ferromagnetic wire is small, the magnetized ferromagnetic wire generates a large magnetic field gradient (high magnetic field gradient) around it.

For this reason, among the magnetized suspended particles 107 in the suspension 106 passing through the filter unit 104, not only ferromagnetic particles but also heavy metal particles having a small magnetic susceptibility and a small particle size are used. Even the suspension 10 is adsorbed and captured by the filter unit 104 due to a strong magnetic attraction based on the high magnetic field gradient.
From 6, the magnetic particles 107 are separated and removed. Purified processing solution 108 after magnetic particles 107 are separated and removed
Is drained from the upper part of the processing tube 102 through the outlet pipe 109.

Thus, the suspended particles 1 in the suspension 106
07 is repeatedly adsorbed and captured by the filter unit 104, so that the captured suspended particles 107 are removed by the filter unit 10.
4 is accumulated. For this reason, the mesh size of the filter unit 104 is reduced, so that the efficiency of the filter unit 104 capturing the suspended particles 105 is reduced and the pressure loss is increased. Accordingly, the suspension of the suspension 106 into the processing cylinder 102 is periodically interrupted, and the superconducting solenoid magnet 103 is stopped.
After degaussing, the filter unit 104 is cleaned.

[0013]

In general, a high-concentration suspension contains a small amount of heavy metals, but contains a relatively large amount of oxides or organic substances (ie, magnetic flocs).

Accordingly, when magnetic suspension particles 107 are magnetically separated from such a suspension using the above-described superconducting magnetic separation apparatus 101, ferromagnetic particles such as iron oxide and magnetic floc having large magnetization are filtered. Since the ferromagnetic particles are easily captured by the portion 104 and the ferromagnetic particles are contained in a large amount in the suspension 106, there is a problem that the filter portion 104 is saturated in a short time and clogging is likely to occur. Further, for this reason, the filter unit 104 must be frequently cleaned, which causes a reduction in the separation efficiency of the suspended particles 107, a reduction in processing efficiency due to an increase in the cleaning work, an increase in human cost, and the like.

Further, since ferromagnetic particles such as iron oxide and magnetic floc are more likely to be captured than weak magnetic particles such as heavy metal particles, weak magnetic particles such as heavy metal particles are more likely to be captured than ferromagnetic particles. There is a problem that the degree of removal without separation and removal increases, and the performance of removing weak magnetic particles, in other words, the performance of separating and removing heavy metal ions is low.

The present invention has been made in view of such circumstances, and an object of the present invention is to improve the efficiency of separating and removing heavy metal ions from a suspension and to reduce saturation and clogging of a filter section for a short time. An object of the present invention is to provide a suspension magnetic separation device which can be suppressed.

[0017]

To achieve the above object, a suspension magnetic separation apparatus according to a first aspect of the present invention provides a suspension supply system for supplying a suspension containing a magnetic material and metal ions. A pipe, a metal ion separation section for separating the metal ions from the suspension supplied from the supply pipe, a metal ion recovery section for recovering the metal ions separated by the separation section, and a metal ion separation section A processing cylinder that allows the suspension to flow on the downstream side, a magnetic field forming unit that forms a magnetic field, and a filter that is disposed in the processing cylinder and is made of a magnetic material that is magnetized by the magnetic field forming unit. , Are provided.

According to the present invention, the metal ions such as heavy metal ions in the suspension are separated from the suspension in the metal ion separation section and recovered by the metal ion recovery section. The efficiency of separation and removal of ions can be improved.

The magnetic suspended particles in the suspension after the metal ions are separated are magnetized by the magnetic field of the magnetic field forming unit, while the filter in the processing cylinder is magnetized by the magnetic field of the magnetic field forming unit. .

For this reason, the magnetic substance such as magnetic suspended particles in the magnetized suspension is adsorbed and captured by the filter by the magnetic attraction, so that the magnetic substance can be separated and removed. Moreover, since this filter is located downstream of the metal ion separation section and mainly captures magnetic particles in the suspension after heavy metal ions have already been separated and removed, it is not necessary to capture almost heavy metal ions. Accordingly, clogging of the filter can be delayed, and the frequency of cleaning the filter can be reduced.

According to a second aspect of the present invention, there is provided a suspension magnetic separation apparatus, wherein the metal ion separation section selectively generates Lorentz force on the metal ions in the suspension by the magnetic field of the magnetic field forming section. Is guided to the metal ion recovery unit side to be separated.

According to this invention, the metal ions such as heavy metal ions in the suspension are subjected to the magnetic field of the magnetic field forming section in the metal ion separating section, generate Lorentz force, and are guided to the metal ion collecting section. It is separated from the magnetic material and collected in the metal ion collection unit.

Therefore, since the magnetic material in the suspension and the magnetic field forming portion for magnetizing the filter are also used for separating metal ions, the number of parts can be reduced and the cost can be reduced.

According to a third aspect of the present invention, there is provided a suspension magnetic separation apparatus comprising a plurality of sets of a processing cylinder having a built-in filter and a magnetic field forming unit.

According to the present invention, since there are provided a plurality of processing cylinders each including a filter for separating and removing a magnetic substance in a suspension and a magnetic field forming unit, the efficiency of separating and removing the magnetic substance is improved by a plurality of sets. Can be done.

According to a fourth aspect of the present invention, in the suspension magnetic separation apparatus, the metal ion separation section selectively generates Lorentz force on the metal ions in the suspension by the magnetic field of the second magnetic field forming section, It is characterized in that the metal ions are guided to the metal ion recovery unit side to be separated.

According to the present invention, the second magnetic field forming section is provided separately from the magnetic field forming section for the metal ion separating section. Therefore, the second magnetic field forming section is provided near the metal ion separating section. By increasing the magnetic field acting on the separation section, the efficiency of separation and removal of metal ions can be improved. Also,
The metal ion separation unit can be installed at a place where the magnetic field of the magnetic field forming unit is weak or at a distant place where it is difficult to operate, and the design flexibility can be improved.

A suspension magnetic separation apparatus according to a fifth aspect is characterized in that the magnetic field forming part and the second magnetic field forming part are superconducting magnets.

According to the present invention, since the magnetic field forming section and the second magnetic field forming section are superconducting magnets capable of forming an extremely strong magnetic field, the magnetic substance in the suspension, the filter, and the metal ion separating section are provided. By applying an extremely strong magnetic field, the efficiency of separating and removing the magnetic substance and heavy metal ions in the suspension can be improved.

The suspension magnetic separation apparatus according to the present invention is interposed in the middle of a suspension flow path that connects the metal ion separation section and the processing cylinder, and the suspension is separated from the magnetic powder in the suspension. It is characterized by having a floc forming portion for injecting the agent and stirring to form a magnetic floc.

According to the present invention, when the magnetic powder and the coagulant are injected into the suspension, the non-magnetic substance such as the organic suspended particles in the suspension aggregates on the magnetic particles of the magnetic powder. To form a magnetic floc having magnetic properties. The magnetic flocks are magnetized by the magnetic field forming unit, are adsorbed by the filter in the processing cylinder, and are separated and removed.

Therefore, non-magnetic substances such as organic substances can be separated and removed together with magnetic substances and heavy metal ions.

According to a seventh aspect of the present invention, in the filter, the filter is formed by knitting a mesh portion through which the suspension is passed, into a net-like magnetic wire formed by twisting a plurality of magnetic fine wires having magnetism. It is characterized by being formed.

According to the present invention, since the wire of the filter mesh portion is formed by a stranded magnetic fine wire, a large magnetic field gradient is generated around the magnetic fine wire, and magnetic fine particles having a small particle diameter are also captured. be able to.

The magnetic fine wire has a small diameter of, for example, several microns to several tens of microns.
Since multiple wires are twisted to form one wire,
The mechanical strength of the wire can be increased.

[0036]

BRIEF DESCRIPTION OF THE DRAWINGS FIG.
A description will be given based on FIG. In these drawings, the same or corresponding parts are denoted by the same reference numerals.

(First Embodiment) FIG. 1 is a configuration diagram of a suspension magnetic separation apparatus 1 according to a first embodiment of the present invention. The suspension magnetic separation device 1 is provided with an inlet pipe 2 at a lower portion of the processing cylinder 2 in the drawing.
The suspension supply pipe 3 is connected to a at a predetermined angle, a branch pipe 4 is connected to this connection at a predetermined angle, and this connection is formed in the heavy metal ion separation section 5.

The suspension supply pipe 3 is a general household wastewater or a factory wastewater, etc., and contains magnetic particles 6 shown by a small circle in the figure, heavy metal ions 7 shown by a small triangle in the figure, and suspended particles such as organic substances (not shown). The suspension 8 is supplied to the processing tube 2 via the metal ion separation unit 5.

A metal ion recovery tank 9 is connected to the branch end of the branch pipe 4, and a recovery electrode 10 for adsorbing and capturing the heavy metal ions 7 is provided in the recovery tank 9 to constitute a metal ion recovery section. doing.

The processing tube 2 is formed of a cylindrical body or the like having a diameter larger than that of the inlet pipe 2a. A filter 11 is built in the processing tube 2, and an outlet for discharging treated water 12 is provided at the center of the upper end of the processing tube 2 in the drawing. The tube 2b is connected. An annular superconducting solenoid magnet 13, which is a magnetic field forming unit, is arranged, for example, concentrically on the outer periphery of the processing tube 2 with a predetermined gap. In the vicinity of the lower part of the superconducting solenoid magnet 13 in the figure, the metal ion separation part 5 is disposed substantially concentrically with the center axis of the superconducting solenoid magnet 13. With the filter 11 inside
It can act on the metal ion separation part 5 at the same time.

FIG. 2 shows the magnetic wire 11 of the filter 11.
It is an important section enlarged perspective view of a. The magnetic wire 11a is formed by twisting a plurality of magnetic fine wires 11b having a magnetism of several microns to several tens of microns in diameter. Further, a plurality of the magnetic wires 11a are knitted in a mesh shape in a filter outer frame (not shown) to form a mesh portion (not shown), and the suspension is passed through the mesh portion in a direction substantially orthogonal to the plane. It has become.

Next, the operation of the present embodiment will be described.

First, when a suspension 8 containing magnetic particles 6, heavy metal ions 7, organic matter, and the like is supplied from the suspension supply pipe 3 toward the processing cylinder 2, the metal ion separation section 5 in the middle thereof supplies the suspension 8. Only the heavy metal ions 7 having a charge in the suspension that has received the magnetic field 14 from the superconducting solenoid magnet 13 selectively generate Lorentz force, and the branch pipe 4 of the metal ion recovery unit.
It is bent to the side and introduced into the metal ion recovery tank 9 through the branch pipe 4. In the metal ion recovery tank 9, the heavy metal ions 7 are adsorbed and captured by the recovery electrode 10.
The collecting electrode 10 is periodically cleaned to collect the heavy metal ions 7.

The suspension 8 from which only the heavy metal ions 7 have been separated and removed in the metal ion separation section 5 is further processed through the inlet pipe 2a with the magnetic particles 6 still remaining. The magnetic particles 6 in the suspension 8 are magnetized by the strong magnetic field of the superconducting solenoid magnet 13.

For this purpose, the magnetized magnetic particles 6
When the liquid passes through the mesh portion of the filter 11 already magnetized by the strong magnetic field 14 of the superconducting solenoid magnet 13, the liquid is adsorbed by magnetic attraction and separated and removed.

Thus, the heavy metal ions 7 and the magnetic particles 6
Is removed from the outlet pipe 2b as treated water 12 to the outside.

Therefore, according to this embodiment, the heavy metal ions 7 are separated from the suspension 8 by the metal ion separation unit 5 and captured and removed by the metal ion recovery tank 9 and the recovery electrode 10. Can be.

Further, the magnetic particles 6 in the suspension 8 can be separated and removed by the filter 11. In addition, since the filter 11 mainly magnetically adsorbs the magnetic particles 6 and most of the heavy metal ions 7 have already been separated and removed, the filter 11 hardly adsorbs the heavy metal ions 7. Therefore, the amount of adsorbed substances adsorbed on the filter 11 per predetermined time can be reduced, so that saturation such as clogging of the filter 11 in a short time can be suppressed, and the adsorbed substances of the filter 11 can be periodically cleaned. It is possible to improve the maintainability by reducing the number of times to perform.

The filter 11 has a mesh portion formed by twisting magnetic fine wires 11b having a diameter of, for example, several microns to several tens of microns.
Since it is constructed by knitting in a net shape by a, a large magnetic field gradient is generated around these magnetic fine wires 11b, and magnetic fine particles having a small particle diameter can be captured. Further, since the magnetic wire 11a is formed by twisting a plurality of magnetic fine wires 11b,
The strength of a can be increased.

(Second Embodiment) FIG. 3 is a configuration diagram of a suspension magnetic separation apparatus 1A according to a second embodiment of the present invention. The suspension magnetic separation apparatus 1A is provided below the metal ion separation unit 5 of the first embodiment in FIG.
A second superconducting solenoid magnet 16, which is a magnetic field forming part of FIG.
It is characterized in that the processing cylinder 2 in the upper middle and the superconducting solenoid magnet 13 are arranged substantially symmetrically.

That is, in the second processing tube 15, an inlet pipe 15a is provided at the center of the upper end in the figure, and an outlet pipe 15b is provided at the center of the lower end, and the inlet pipe 15a is connected to the metal ion separating section 5 in the drawing.
The suspension 8 supplied from the suspension supply pipe 3 is connected to the upper processing cylinder 2 on the side substantially opposite to the inlet pipe 2a (the lower part in FIG. 3).
Is also introduced into the second processing tube 15 via the inlet pipe 15a.

The second processing tube 15 incorporates a second filter 17 having the same configuration as that of the filter 11 described above. That is, as shown in FIG. 2, the second filter 17 forms a magnetic wire 11a by twisting a plurality of fine magnetic wires 11b having a small diameter, and knits the magnetic wire 11a into a mesh to form a mesh portion. I have.

The second superconducting solenoid magnet 16 is formed in a ring shape almost in the same manner as the superconducting solenoid magnet 13 in the upper part of FIG. 3, and is concentric with the outer periphery of the second processing cylinder 15 at a predetermined interval. The magnetic particles 6 in the suspension 8 and the second filter 17 are magnetized by the magnetic field.

Therefore, according to the second embodiment, the suspension 8 supplied to the metal ion separation unit 5 by the suspension supply pipe 3 is used after the heavy metal ions are separated and removed by the metal ion separation unit 5. The magnetic particles 6 in the suspension 8 are adsorbed and separated and removed by the two filters 11 and 17 respectively.

For this purpose, the magnetic particles 6 in the suspension 8
To the two filters 11, 1 in the two processing tubes 2, 15.
7, the magnetic particles 6 are separated and removed.
Can be theoretically almost doubled as compared with the first embodiment.

The number of the processing cylinders 2 and 15 and the filters 11 and 17 are not limited to two, but may be two or more.

(Third Embodiment) FIG. 4 is a configuration diagram of a suspension magnetic separation apparatus 1B according to a third embodiment of the present invention. This suspension magnetic separator 1B is characterized in that a metal ion separator 5A corresponding to the metal ion separator 5 of the suspension magnetic separator 1A shown in FIG. There is.

That is, the metal ion separation section 5A is connected to the branch pipe of the metal ion recovery section in the middle of the suspension supply pipe 3 upstream of the connection section between the suspension supply pipe 3 and the processing tube inlet pipe 2a. 4 are connected to each other, and a pair of upper and lower annular split magnets 18a and 18b as a second magnetic field forming part are concentrically arranged at a predetermined interval above and below the connecting part. A magnetic field 19 is applied to the separation section 5A.

According to the third embodiment, the Lorentz force is applied to the heavy metal ions 7 in the suspension 8 by the magnetic field 19 of the dedicated split magnets 18a and 18b, not the magnetic field 14 of the superconducting solenoid magnet 13 of the processing cylinder 2. Since it is generated, the Lorentz force can be increased. For this reason, the separation and removal efficiency of the heavy metal ions 7 can be improved.

(Fourth Embodiment) FIG. 5 is a configuration diagram of a suspension magnetic separation apparatus 1C according to a fourth embodiment of the present invention. This suspension magnetic separator 1C has an intermediate pipe 20 interposed between the metal ion separator 5 and the processing tube inlet pipe 2a of the suspension magnetic separator 1A shown in FIG. It is characterized in that the flock forming part 21 is interposed in the axial middle part.

The floc forming section 21 has a floc forming tank 21a interposed at an intermediate portion of the intermediate pipe 20. An injection pipe 23 for injecting a magnetic powder 22 and a flocculant indicated by a black circle in the figure into the floc forming tank 21a, and a suspension 8 in the floc forming tank 21a by stirring the suspension 8 in the floc forming tank 21a. A stirrer 25 for promoting the formation is provided.

The magnetic floc 24 binds an organic substance 26, which is a non-magnetic substance in the suspension indicated by a small square in the figure, to the magnetic substance particles of the magnetic powder 22 with a coagulant, and the magnetic substance particles are attached to the central nucleus. The filter 11 is magnetized by the strong magnetic field of the superconducting solenoid magnet 13 and is magnetically attracted to the already magnetized filter 11 and captured.

Therefore, the suspension magnetic separation device 1C
According to the above, the magnetic particles 6 and the heavy metal ions 7 in the suspension 8
At the same time, the organic substance 26 is also used as a magnetic
1 can be separated and removed. For this reason, the purification of the suspension 8 can be further enhanced.

[0064]

As described above, according to the present invention, metal ions such as heavy metal ions in the suspension are separated from the suspension in the metal ion separation section and recovered by the metal ion recovery section. The efficiency of separation and removal of metal ions such as heavy metal ions can be improved.

The magnetic suspended particles in the suspension after the metal ions have been separated are magnetized by the magnetic field of the magnetic field forming unit, while the filter in the processing cylinder is magnetized by the magnetic field of the magnetic field forming unit. .

For this reason, the magnetic substance such as magnetic suspended particles in the magnetized suspension is adsorbed and captured by the filter by magnetic attraction, so that the magnetic substance can also be separated and removed. Moreover, since this filter is located downstream of the metal ion separation section and mainly captures magnetic particles in the suspension after heavy metal ions have already been separated and removed, it is not necessary to capture almost heavy metal ions. Accordingly, clogging of the filter can be delayed, and the frequency of cleaning the filter can be reduced.

[Brief description of the drawings]

FIG. 1 is a configuration diagram of a suspension magnetic separation device according to a first embodiment of the present invention.

FIG. 2 is a partial perspective view of a magnetic wire of the filter shown in FIG.

FIG. 3 is a configuration diagram of a suspension magnetic separation device according to a second embodiment of the present invention.

FIG. 4 is a configuration diagram of a suspension magnetic separation device according to a third embodiment of the present invention.

FIG. 5 is a configuration diagram of a suspension magnetic separation device according to a fifth embodiment of the present invention.

FIG. 6 is a configuration diagram of a conventional suspension magnetic separation apparatus.

[Explanation of symbols]

1, 1A, 1B, 1C Suspension magnetic separation device 2 Processing cylinder 3 Suspension supply pipe 5, 5A Metal ion separation unit 6 Magnetic particles 7 Heavy metal ions 8 Suspension 9 Metal ion recovery tank 11 Filter 11a Filter Magnetic wire 11b Magnetic wire of filter 13 Superconducting solenoid magnet 15 Second processing cylinder 16 Superconducting solenoid magnet 18a, 18b A pair of split magnets (second magnetic field forming part)

Claims (7)

[Claims] 1. A suspension supply pipe for supplying a suspension containing a magnetic substance and metal ions, a metal ion separation section for separating the metal ions from the suspension supplied from the supply pipe, A metal ion recovery unit for recovering the metal ions separated by the separation unit, a processing cylinder through which the suspension is passed downstream of the metal ion separation unit, a magnetic field forming unit for forming a magnetic field, and the processing A suspension magnetic separation apparatus, comprising: a filter disposed in a cylinder and made of a magnetic material magnetized by the magnetic field forming unit. 2. The metal ion separation section selectively generates Lorentz force on metal ions in a suspension by a magnetic field of a magnetic field forming section, and guides and separates the metal ions to a metal ion collection section. 2. The configuration according to claim 1, wherein
A suspension magnetic separation device as described. 3. The suspension magnetic separation apparatus according to claim 1, wherein a plurality of sets are provided as one set of a processing cylinder having a built-in filter and a magnetic field forming unit. 4. The metal ion separation section selectively generates Lorentz force on the metal ions in the suspension by the magnetic field of the second magnetic field forming section, and guides the metal ions to the metal ion recovery section. The suspension magnetic separation apparatus according to any one of claims 1 to 3, wherein the suspension magnetic separation apparatus is configured to separate the suspension magnetic separation apparatus. 5. The suspension magnetic separation apparatus according to claim 1, wherein the magnetic field generator and the second magnetic field generator are superconducting magnets. 6. A magnetic powder and a flocculant are injected into the suspension, which is interposed in the middle of a suspension flow path that connects the metal ion separation unit and the processing cylinder, and stirred to form a magnetic floc. The suspension magnetic separation device according to any one of claims 1 to 5, further comprising: 7. The filter according to claim 1, wherein the mesh portion through which the suspension is passed is formed by braiding a magnetic wire formed by twisting a plurality of magnetic fine wires having magnetism into a mesh. 7. The suspension magnetic separation device according to any one of items 1 to 6.