WO2015194416A1 - 選別装置及び選別方法 - Google Patents
選別装置及び選別方法 Download PDFInfo
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- WO2015194416A1 WO2015194416A1 PCT/JP2015/066560 JP2015066560W WO2015194416A1 WO 2015194416 A1 WO2015194416 A1 WO 2015194416A1 JP 2015066560 W JP2015066560 W JP 2015066560W WO 2015194416 A1 WO2015194416 A1 WO 2015194416A1
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- magnetic
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- fluid
- magnetic separation
- magnetized
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C1/00—Magnetic separation
- B03C1/02—Magnetic separation acting directly on the substance being separated
- B03C1/025—High gradient magnetic 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
- B03C1/00—Magnetic separation
- B03C1/02—Magnetic separation acting directly on the substance being separated
- B03C1/025—High gradient magnetic separators
- B03C1/031—Component parts; Auxiliary operations
- B03C1/033—Component parts; Auxiliary operations characterised by the magnetic circuit
- B03C1/034—Component parts; Auxiliary operations characterised by the magnetic circuit characterised by the matrix elements
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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
- B03C2201/00—Details of magnetic or electrostatic separation
- B03C2201/18—Magnetic separation whereby the particles are suspended in a liquid
Definitions
- the present invention relates to a sorting apparatus and a sorting method for sorting a magnetic article and a non-magnetized article from an object to be sorted using a high gradient magnetic separator.
- a magnetic separation method has long been known in which ferromagnetic fine wires (matrix) are arranged in a uniform magnetic field and a large magnetization gradient is generated in the vicinity of the ferromagnetic fine wires.
- the ferromagnetic thin wire can be used as a magnetic filter, and a magnetic material that is magnetically attached to the ferromagnetic thin wire with respect to a fluid to be sorted introduced into a flow path in which the ferromagnetic thin wire is disposed. Can be magnetically separated from non-magnetized objects that are not magnetized.
- the magnetic separator using the principle of the magnetic separation method has been developed as a high gradient magnetic separator (HGMS), and the high gradient magnetic separator is newly developed even now. That is, in the high gradient magnetic separator, it is a major problem to improve the separation accuracy and separation efficiency between the magnetic material and the non-magnetic material. For example, in the magnetic material collection step, particles adsorbed on the magnetic filter In order to facilitate the desorption, a method of blowing a pressurized gas (see Patent Document 1) has been proposed.
- FIGS. 1A to 1C are explanatory views for explaining a conventional sorting apparatus using a Jones type wet high gradient magnetic separator.
- the sorting apparatus 100 includes a high gradient magnetic separation unit 50 including an electromagnet 50a, a magnetic filter 50b, and a magnetic separation channel 50c, one end of the magnetic separation channel 50c, and an on-off valve 101a.
- the fluid to be sorted is introduced into the magnetic separation flow channel 50c and is connected to the other end of the magnetic separation flow channel 50c via the on-off valve 103a.
- the non-magnetized substance discharge flow path 103b that can discharge the selection target fluid magnetized on the magnetic filter 50b from the magnetic selection flow path 50c, the other end side of the magnetic selection flow path 50c, and the on-off valve 104a.
- a carrier fluid introduction channel 104b that is capable of introducing a carrier fluid (for example, water) that is connected and detached from the magnetic filter 50b into the magnetism separation channel 50c, and a magnetism separation channel 50c.
- a magnetized material discharge channel 105b that is connected to the side through the on-off valve 105a and is capable of discharging the carrier fluid in a state of transporting the magnetized material detached from the magnetic filter 50b from the magnetic separation channel 50c. It is configured as a simple member.
- the magnetized material and the non-magnetized material are separated and sorted from the fluid to be sorted by the following steps.
- the fluid to be sorted introduced from the reservoir 101c of the fluid to be sorted into the sorted fluid introduction flow path 101b by the pump 101d is introduced into the magnetic separation flow path 50c and the magnetic material is magnetically deposited on the magnetic filter 50b.
- the on-off valve 103a Of the on-off valves on the other end side of the magnetic separation channel 50c, only the on-off valve 103a is opened, and the fluid to be sorted in a state where the magnetized material is magnetized is discharged to the non-magnetized material discharge channel 103b. It collect
- the non-magnetized substance sorting step and the magnetized matter sorting step are repeatedly performed according to the magnetizing capacity of the magnetic filter 50 by operating each on-off valve, so that the magnetic material is separated from the sorted fluid.
- the kimono and the non-magnetic deposit can be separated and selected.
- the fluid to be sorted remains in the magnetic separation channel 50c without being separated from the magnetized material and the non-magnetized material when switching between the non-magnetized material sorting step and the magnetized material sorting step. Therefore, there is a problem that the separation accuracy is lowered. For this reason, in order to perform separation with high accuracy, it is necessary to circulate the sorted materials once sorted as the fluid to be sorted and repeat the same sorting operation. As a result, the separation efficiency also decreases. That is, as shown in FIG. 1B, when the non-magnetized material sorting step is performed, the unsorted to-be-sorted that has not been sorted by the magnetic filter 50b on the one end side of the magnetic sorting channel 50c.
- the fluid remains, and the fluid to be sorted in which the magnetic material to be discharged to the non-magnetized material discharge channel 103b remains on the other end side of the magnetic separation channel 50c remains.
- the unsorted to-be-sorted state remaining in the magnetic sorting channel 50c.
- the fluid to be sorted in which the magnetic material to be discharged to the fluid and non-magnetized material discharge channel 103b is magnetized is discharged to the magnetic material discharge channel 105b, which is not intended for the magnetized material recovery unit 105c. There is a problem that magnetic deposits are mixed.
- an object of the present invention is to provide a sorting apparatus and a sorting method for sorting magnetically and non-magnetized materials from a target to be sorted with high accuracy and high efficiency using a high gradient magnetic separator.
- a sorting apparatus capable of separating and sorting the magnetized material and the non-magnetized material from the fluid to be sorted, which is a mixture of the magnetized material and the non-magnetized material, by an electromagnet and a magnetic field generated by the electromagnet
- a high-gradient magnetic separation unit having a magnetic filter capable of magnetically attaching and detaching the magnetic deposit, a magnetic separation channel in which the electromagnet is arranged outside and the magnetic filter is arranged inside, and one end side of the magnetic separation channel Via a first on-off valve and a selection target fluid introduction channel through which the selection target fluid can be introduced into the magnetic selection channel, the one end side of the magnetic selection channel and a second on-off valve
- a first carrier fluid introduction channel that is connected and capable of introducing the first carrier fluid capable of carrying the fluid to be sorted into the magnetic separation channel, the other end side of the magnetic separation channel, and a third on-off valve.
- the non-magnetized substance discharge flow path capable of discharging the selection target fluid and the first transport fluid from the magnetic separation flow path, and the other end side of the magnetic separation flow path are connected via a fourth on-off valve,
- a sorting device characterized by that.
- ⁇ 2> Furthermore, it is connected to the other end side of the magnetic separation flow path through a sixth open / close valve, and the first transport fluid in a state of transporting the residue remaining in the magnetic filter can be discharged from the magnetic separation flow path.
- the third on-off valve on the other end side of the magnetic separation channel is opened, and the fluid to be sorted in a state where the magnetic material is magnetized is discharged to the non-magnetized material discharge channel.
- only the second on-off valve among the on-off valves on the one end side of the magnetic sorting channel is opened with respect to the magnetic sorting channel in which the electromagnet is excited.
- the other end of the magnetic separation channel Only the third on-off valve of the on-off valves is opened, and the fluid to be sorted in a state where the magnetic material remaining in the magnetic separation channel is magnetically attached to the magnetic filter is conveyed to the first carrier fluid.
- the residual non-magnetized matter sorting step for discharging these from the magnetic separation channel to the non-magnetized matter discharge channel, and the magnetic separation channel in a state where the excitation of the electromagnet is released after the remaining non-magnetized matter sorting step
- the fourth on-off valve is opened to introduce the second carrier fluid from the second carrier fluid introduction channel
- the fifth on-off valve is opened, and the magnetized material detached from the magnetic filter is transported to the second transport fluid, and the magnetized material is discharged from the magnetic separation channel to the magnetized material discharge channel.
- a kimono sorting step for discharging these from the magnetic separation channel to the non-magnetized matter discharge channel, and the magnetic separation channel in a state where the excitation of the electromagnet is released after the remaining non-magnetized matter sorting step
- ⁇ 4> The sorting method according to ⁇ 3>, wherein the non-magnetized matter sorting step, the remaining non-magnetized matter sorting step, and the magnetized matter sorting step are repeated as a series of steps.
- ⁇ 5> Only the second opening / closing valve among the opening / closing valves on the one end side of the magnetic separation flow path with respect to the magnetic separation flow path in a state where the electromagnet is excited between the remaining non-magnetic attachment selection process and the magnetic attachment selection process.
- the first carrier fluid is introduced from the first carrier fluid introduction channel, and only the sixth on-off valve on the other end side of the magnetic separation channel is opened, and the residue remaining in the magnetic filter.
- the above-mentioned problems in the prior art can be solved, and a sorting device and a sorting device that sorts magnetic and non-magnetized materials from a target to be sorted with high accuracy and high efficiency using a high gradient magnetic separator.
- a method can be provided.
- the sorting device of the present invention is a sorting device capable of separating and sorting the magnetized material and the non-magnetized material from the fluid to be sorted, which is a mixture of the magnetized material and the non-magnetized material, and at least a high gradient magnetic separation
- a sorting fluid introduction flow path, a first transfer fluid introduction flow path, a non-magnetized substance discharge flow path, a second transfer fluid introduction flow path, and a magnetic deposit discharge path It has arbitrary members, such as a residue discharge flow path, as needed.
- the fluid to be sorted is not particularly limited as long as it contains the magnetic material, and can be applied to sorting by the sorting device.
- recycled samples, phosphors and fluorescent lamp samples, mine-produced samples, foods and Examples thereof include fluids containing the various samples, such as a slurry in which a solid material containing the magnetic material such as a pharmaceutical packaging sample is dispersed in a suspension.
- the magnetized material corresponds to a magnetized material set to be magnetizable by the magnetic filter described below, and only the magnetic material having a high magnetic susceptibility may be targeted by the setting, or the low magnetic susceptibility may be set.
- the magnetic material may be included.
- whether the magnetic filter can be magnetically attached can be set to be changeable according to the magnitude of the magnetic flux density generated by the electromagnet and the magnitude of the magnetic gradient formed by the magnetic filter.
- a magnetic material set so as to be magnetically attached to the magnetic filter is referred to as the magnetized material, and other materials are referred to as the non-magnetized material.
- the high-gradient magnetic separation unit includes an electromagnet, a magnetic filter capable of magnetically attaching and detaching the magnetic material by a magnetic field generated by the electromagnet, and a magnetic current selection in which the electromagnet is arranged outside and the magnetic filter is arranged inside. Road.
- electromagnet used for a well-known high gradient magnetic separator can be applied widely.
- magnetic filter used for a well-known high gradient magnetic separator can be applied widely.
- limiting in particular as a constituent material of the said magnetic selection flow path According to the objective, it can select suitably, A well-known stainless steel piping etc. can be applied widely.
- the selection target fluid introduction flow path is connected to one end side of the magnetic selection flow path via a first on-off valve so that the selection target fluid can be introduced into the magnetic selection flow path.
- the first on-off valve is not particularly limited as long as the on-off control can be performed independently of the other on-off valves, and can be appropriately selected according to the purpose.
- An on-off valve two-way valve
- a known three-way valve or four-way valve configured integrally with another on-off valve may be used.
- the constituent material of the fluid to be sorted introduction channel is not particularly limited as in the case of the magnetic separation channel, and can be appropriately selected according to the purpose. it can.
- the attached configuration of the fluid to be sorted introduction channel is not particularly limited, and for example, a pump for introducing the fluid to be sorted or a reservoir for the fluid to be sorted may be connected to the channel.
- the first transport fluid introduction channel is connected to the one end side of the magnetic separation channel via a second on-off valve, and the first transport fluid capable of transporting the fluid to be sorted can be introduced into the magnetic separation channel. Is done.
- the first transport fluid introduction flow path is disposed, and after the non-magnetized substance sorting step, the fluid to be sorted remaining in the magnetic separation flow path is transferred to the first transport fluid.
- the magnetic separation flow path at the time of switching from the non-magnetized material sorting step to the magnetic material sorting step in the conventional sorting apparatus described with reference to FIG. It is possible to solve the problem that the unsorted fluid to be sorted and the like remaining in the state is discharged to the magnetized material discharge channel.
- the first transport fluid is not particularly limited as long as it is a fluid that can transport the fluid to be sorted, and examples thereof include water.
- various rinse liquids for cleaning liquids added with a known dispersant
- the second on-off valve is not particularly limited as long as the on-off control can be performed independently of the other on-off valves, similarly to the first on-off valve, and can be appropriately selected according to the purpose.
- a known on-off valve (two-way valve) physically independent from the on-off valve may be used, or a known three-way valve or four-way valve configured integrally with another on-off valve may be used.
- the constituent material of the first transport fluid introduction channel is not particularly limited, as in the case of the magnetic separation channel, and can be appropriately selected according to the purpose. Can do.
- transduces the said 1st conveyance fluid and the storage part of the said 1st conveyance fluid are connected to this flow path.
- the first carrier fluid introduction channel may be connected to a water pipe.
- a separate opening / closing valve can be provided to selectively introduce the first transport fluid into the first transport fluid introduction channel.
- Non-magnetic deposit discharge passage The non-magnetized substance discharge flow path is connected to the other end side of the magnetic separation flow path via a third on-off valve, and the fluid to be sorted and the first fluid in a state where the magnetic deposit is magnetized on the magnetic filter.
- the carrier fluid can be discharged from the magnetic separation flow path.
- the third on-off valve is not particularly limited as long as the third on-off valve can be controlled to open and close independently from the other on-off valves, and can be appropriately selected according to the purpose.
- a known on-off valve (two-way valve) that is physically independent of the other on-off valves may be used, or a known three-way valve or four-way valve that is configured integrally with another on-off valve may be used.
- the constituent material of the non-magnetized substance discharge flow path is not particularly limited as in the case of the magnetic separation flow path, and can be appropriately selected according to the purpose. it can.
- recovers the said non-magnetized material is mentioned.
- a general recovery container may be used, or a filter device for filtering out the magnetized substances that could not be completely sorted by the magnetic filter is attached to such a recovery container. It may be.
- the collection container in order to sort out the magnetic deposits that have not been sorted out by the magnetic filter, the collected pieces may be circulated again and introduced into the sorted fluid introduction flow path.
- the second transport fluid introduction flow path is connected to the other end side of the magnetic separation flow path via a fourth on-off valve, and is capable of transporting the magnetized material detached from the magnetic filter.
- a fluid can be introduced into the magnetic separation channel.
- the second transport fluid is not particularly limited as long as it is a fluid capable of transporting the magnetic deposit, and examples thereof include water.
- the fourth on-off valve is not particularly limited as long as the on-off control can be performed independently of the other on-off valves, similarly to the first on-off valve, and can be appropriately selected according to the purpose.
- a known on-off valve (two-way valve) physically independent from the on-off valve may be used, or a known three-way valve or four-way valve configured integrally with another on-off valve may be used.
- the constituent material of the second transport fluid introduction channel is not particularly limited, as in the case of the magnetic separation channel, and can be appropriately selected according to the purpose. Can do.
- the pump which introduces the said 2nd conveyance fluid, or the storage part of the said 2nd conveyance fluid is connected to this flow path.
- the second carrier fluid introduction channel may be connected to a water pipe.
- the magnetized material discharge channel is connected to the one end side of the magnetic separation channel via a fifth on-off valve, and the second transport fluid in a state of transporting the magnetized material detached from the magnetic filter It is possible to discharge from the magnetic separation flow path.
- the fifth on-off valve is not particularly limited as long as it can be controlled to open and close independently from other on-off valves, as with the first on-off valve, and can be appropriately selected according to the purpose.
- a known on-off valve two-way valve that is physically independent of the other on-off valves may be used, or a known three-way valve or four-way valve that is configured integrally with another on-off valve may be used.
- the constituent material of the magnetized material discharge channel is not particularly limited as in the case of the magnetic separation channel, and can be appropriately selected according to the purpose, and well-known stainless steel pipes can be widely applied. .
- the magnetized material recovery unit may be, for example, a general recovery container, or a filter device attached to the recovery container for separating the second carrier fluid and the magnetic material from the recovery container. Also good.
- the residual discharge channel is connected to the other end of the magnetic separation channel via a sixth on-off valve, and the first transport fluid in a state of transporting the residual material remaining in the magnetic filter is supplied to the magnetic separation channel. It is possible to discharge from the road.
- the first transport fluid introduction flow path is arranged independently of the second transport fluid introduction flow path, so that the rinse liquid is supplied to the magnetic separation flow path as the first transport fluid. Introducing, the residue remaining in the magnetic filter (the magnetic deposit, suspended particles contained in the fluid to be sorted, etc.) can be washed away from the magnetic filter and discharged from the magnetic separation channel.
- the sixth on-off valve is not particularly limited as long as it can be controlled to open and close independently from other on-off valves, similarly to the first on-off valve, and can be appropriately selected according to the purpose.
- a known on-off valve (two-way valve) that is physically independent of the other on-off valves may be used, or a known three-way valve or four-way valve that is configured integrally with another on-off valve may be used.
- the constituent material of the residual discharge channel is not particularly limited as in the case of the magnetic separation channel, and can be appropriately selected according to the purpose, and well-known stainless steel pipes can be widely applied. .
- the residue collection unit may be, for example, a general collection container, or a filtration device attached to such a collection container to filter out the magnetic deposits and the suspended particles washed away from the magnetic filter. It may be what was made. Note that the recovered material recovered by the residual material recovery unit may be recirculated and introduced into the sorted fluid introduction channel.
- the sorting method according to the present invention is a sorting method for separating and sorting the magnetized material and the non-magnetized material from the fluid to be sorted using the sorting device according to the present invention, and at least the non-magnetized material sorting Including a process, a remaining non-magnetized substance sorting process, and a magnetized substance sorting process, and further includes an optional process such as a remaining substance discharging process, if necessary.
- description is abbreviate
- the fluid to be sorted is introduced by opening only the first on-off valve among the on-off valves on one end side of the magnetic separation passage with respect to the magnetic separation passage in a state where the electromagnet is excited.
- This is a step of discharging the fluid to be sorted in a state of being discharged to the non-magnetized material discharge passage.
- ⁇ Remaining non-magnetic deposit selection process> In the remaining non-magnetized material sorting step, after the non-magnetized material sorting step, only the second on-off valve among the on-off valves on one end side of the magnetic sorting channel is opened with respect to the magnetic sorting channel in which the electromagnet is excited. Then, the first carrier fluid is introduced from the first carrier fluid introduction channel, and only the third on-off valve among the on-off valves on the other end side of the magnetic separation channel is opened to remain in the magnetic separation channel. The step of transporting the fluid to be sorted in a state in which a magnetized material is magnetized to the magnetic filter to the first transport fluid and discharging them from the magnetized flow channel to the non-magnetized material discharge channel.
- the to-be-sorted fluid that remains in the magnetic separation channel is treated as the magnetized material in a state where the magnetized material is magnetized on the magnetic filter.
- the magnetic material sorting is performed from the non-magnetized material sorting step in the conventional sorting device described with reference to FIG. 1B by being transported by the first transport fluid as the sorting fluid and discharged out of the magnetic sorting channel. At the time of switching to the process, it is possible to solve the problem that the unselected fluid to be sorted and the like remaining in the magnetic separation flow path is discharged to the magnetic deposit discharge flow path.
- ⁇ Magnetic clothing selection process> In the magnetized material sorting step, after the remaining non-magnetized material sorting step, the fourth on-off valve among the on-off valves on the other end side of the magnetic sorting channel with respect to the magnetic sorting channel in a state where the excitation of the electromagnet is released Only the second carrier fluid is introduced from the second carrier fluid introduction channel, and only the fifth on-off valve on the one end side of the magnetic separation channel is opened to remove it from the magnetic filter. The separated magnetized material is transported to the second transport fluid and discharged from the magnetic separation channel to the magnetized material discharge channel.
- non-magnetized substance selection process said remaining non-magnetized substance selection process, and said magnetized substance selection process
- continuous processing in such a cycle it is possible to efficiently sort the magnetized material and the non-magnetized material from the fluid to be sorted.
- the switching from the non-magnetized material sorting step to the remaining non-magnetized material sorting step can be appropriately adjusted according to the magnetizing capacity of the magnetic filter.
- the switching from the remaining non-magnetized substance selection step to the magnetic substance selection step is performed by removing the unselected fluid to be sorted remaining in the magnetic separation channel after the non-magnetized material selection step. It is possible to appropriately adjust the timing at which the discharge is completed.
- an opening / closing valve on one end side of the magnetic separation flow path is arranged with respect to the magnetic selection flow path in a state where the electromagnet is excited between the remaining non-magnetic magnetization selection process and the magnetic deposit selection process.
- the second on-off valve is opened to introduce the first transport fluid from the first transport fluid introduction channel
- only the sixth on-off valve is opened among the on-off valves on the other end side of the magnetic separation channel. Then, the residual matter remaining in the magnetic filter is transported to the first transport fluid and discharged from the magnetic separation flow channel to the residual discharge channel.
- the first transport fluid is introduced independently of the second transport fluid, thereby introducing the rinse liquid as the first transport fluid into the magnetic separation flow path.
- the residue remaining in the filter (such as the magnetic deposit or suspended particles contained in the fluid to be sorted) can be washed away from the magnetic filter and discharged from the magnetic separation channel.
- the residue discharge step can also be carried out as a series of steps.
- the magnetized material sorting step that is performed after the residue discharging step, the high-purity magnetized material in which contamination of particles other than the residue, particularly the magnetized material, is suppressed can be recovered.
- 2A to 2D are explanatory views for explaining the sorting device according to an embodiment of the present invention.
- the sorting apparatus 10 includes a high gradient magnetic separation unit 50 including an electromagnet 50a, a magnetic filter 50b, and a magnetic separation channel 50c, one end side of the magnetic separation channel 50c, and a first on-off valve. 1a, the fluid to be sorted introduction channel 1b capable of introducing the fluid to be sorted into the magnetic separation channel 50c, the one end side of the magnetic separation channel 50c and the second on-off valve 2a.
- the first carrier fluid introduction channel 2b capable of introducing the first carrier fluid (for example, water) capable of carrying the fluid to be sorted into the magnetic separation channel 50c, the other end side of the magnetic separation channel 50c, and the first A non-magnetized substance discharge flow path 3b, which is connected via a three open / close valve 3a, and is capable of discharging the selected fluid in a state in which the magnetic material is magnetically attached to the magnetic filter 50b, from the magnetic selection flow path 50c; Connected to the other end of the passage 50c through the fourth on-off valve 4a
- a carrier fluid introduction channel 4b capable of introducing a second carrier fluid (for example, water) capable of transporting the magnetized material detached from the magnetic filter 50b into the magnetic separation channel 50c, and a magnetic separation channel.
- Magnetized material discharge that is connected to the one end side of 50c through the fifth on-off valve 5a and is capable of discharging the carrier fluid in a state of conveying the magnetized material detached from the magnetic filter 50b from the magnetic separation channel 50c.
- the remaining material (the magnetically adhered material, suspended particles in the fluid to be sorted, etc.) that is connected to the flow path 5b and the other end side of the magnetic separation flow path 50c via the sixth on-off valve 6a and remains in the magnetic filter 50b. )
- the first transport fluid for example, rinse liquid
- residual material discharge flow path 6b that can be discharged from the magnetic separation flow path 50c.
- the first on-off valve 1a, the second on-off valve 2a, and the fifth on-off valve 5a arranged on the one end side of the magnetic separation flow path 50c are two-way valves, but these on-off valves are integrated. It may be configured as a three-way valve and a four-way valve. Similarly, the third on-off valve 3a, the fourth on-off valve 4a, and the sixth on-off valve 6a arranged on the other end side of the magnetic separation flow path 50c are two-way valves, but these on-off valves are integrated. Alternatively, it may be configured as a three-way valve or a four-way valve.
- the magnetized material and the non-magnetized material are separated and sorted from the fluid to be sorted by the following sorting method. Further, as an optional step, the magnetic filter 50b is cleaned. First, as shown by an arrow in FIG. 2A, only the first on-off valve 1a among the on-off valves on the one end side of the magnetic separation channel 50c is changed with respect to the magnetic separation channel 50c in a state where the electromagnet 50a is excited.
- the fluid to be sorted is introduced from the reservoir 1c for the fluid to be sorted into the fluid to be sorted introduction channel 1b by the pump 1d and introduced into the magnetic separation channel 50c to magnetize the magnetic material on the magnetic filter 50b.
- the third on-off valve 3a is opened, and the fluid to be sorted in the state where the magnetized material is magnetized is transferred to the non-magnetized material discharge channel 3b. It is discharged and collected in the non-magnetized matter collection unit 3c (the non-magnetized matter sorting step).
- the unsorted fluid to be sorted that has not been sorted by the magnetic filter 50b remains on the one end side, and the other end of the magnetic separation flow path 50c.
- the to-be-sorted fluid magnetized with the magnetic material to be discharged to the non-magnetic material discharge flow path 3b remains on the side (see FIG. 2B).
- the open / close valve on the one end side of the magnetic separation flow path 50c is compared with the magnetic selection flow path 50c in which the electromagnet 50a is excited after the non-magnetized material selection step.
- Only the second on-off valve 2a is opened to introduce the first carrier fluid stored in the reservoir 2c from the first carrier fluid introduction channel 2b, and the on-off valve on the other end side of the magnetic separation channel 50c.
- Only the third on-off valve 3a is opened, the unselected fluid to be sorted remaining in the magnetic separation channel 50c is conveyed to the first conveyance fluid, and these are discharged from the magnetic separation channel 50c. It discharges
- a fourth opening / closing valve among the opening / closing valves on the other end side of the magnetic separation channel 50c with respect to the magnetic separation channel 50c in a state where the excitation of the electromagnet 50a is released Only the valve 4a is opened, the second carrier fluid is introduced from the second carrier fluid introduction passage 4b into the magnetic separation passage 50c, and only the fifth opening / closing valve 5a among the opening / closing valves on the one end side of the magnetic separation passage 50c. Is opened, the magnetized material detached from the magnetic filter 50c is transported to the second transport fluid, and is discharged from the magnetic separation channel 50c to the magnetized material discharge channel 5b, into the magnetized material recovery unit 5c. Collect (the magnetic deposit selection process).
- the first transport fluid introduction flow path 2a is arranged, and the remaining non-magnetized matter sorting step is performed, so that the unsorted unsorted remaining in the magnetic sorting channel 50c after the non-magnetized matter sorting step.
- the sorted fluid or the like is transported to the first transport fluid and discharged to the non-magnetized substance discharge channel 3b, and the sorted fluid with the magnetized substance magnetized on the magnetic filter 50b is collected by the non-magnetized substance collection unit 3c.
- the first carrier fluid introduction flow path 2a is arranged, and the residual material sorting step using the first carrier fluid (rinse liquid) independent of the second carrier fluid is performed, so that the magnetic filter 50b remains.
- the residue (such as the magnetic deposit or suspended particles contained in the fluid to be sorted) is washed away from the magnetic filter 50b to suppress the mixture of the residue, particularly particles other than the magnetic deposit, into the magnetic deposit recovery part 5c. It is possible to recover the high-purity magnetic deposit. Therefore, it is possible to sort the magnetized material and the non-magnetized material with high accuracy and high efficiency from the fluid to be sorted.
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Abstract
Description
図1(a)に示すように、選別装置100は、電磁石50a、磁気フィルタ50b及び磁選流路50cで構成される高勾配磁気分離部50と、磁選流路50cの一端側と開閉弁101aを介して接続され、被選別流体を磁選流路50cに導入可能とされる被選別流体導入流路101bと、磁選流路50cの他端側と開閉弁103aを介して接続され、前記磁着物が磁気フィルタ50bに磁着された状態の前記被選別流体を磁選流路50cから排出可能とされる非磁着物排出流路103bと、磁選流路50cの前記他端側と開閉弁104aを介して接続され、磁気フィルタ50bから脱離された状態の前記磁着物を搬送可能な搬送流体(例えば、水)を磁選流路50cに導入可能とされる搬送流体導入流路104bと、磁選流路50cの前記一端側と開閉弁105aを介して接続され、磁気フィルタ50bから脱離された前記磁着物を搬送する状態の前記搬送流体を磁選流路50cから排出可能とされる磁着物排出流路105bとを主な部材として構成される。
先ず、図1(a)中の矢印で示すように、電磁石50aが励磁された状態の磁選流路50cに対し、磁選流路50cの前記一端側の開閉弁のうち開閉弁101aのみを開放し、前記被選別流体の貯留部101cからポンプ101dにより被選別流体導入流路101bに導入される前記被選別流体を磁選流路50cに導入して磁気フィルタ50bに前記磁着物を磁着させるとともに、磁選流路50cの前記他端側の開閉弁のうち、開閉弁103aのみを開放して前記磁着物が磁着された状態の前記被選別流体を非磁着物排出流路103bに排出し、非磁着物回収部103c内に回収する(非磁着物選別工程)。
次に、図1(c)中の矢印で示すように、電磁石50aの励磁が解除された状態の磁選流路50cに対し、磁選流路50cの前記他端側の開閉弁のうち開閉弁104aのみを開放し、搬送流体導入流路104bから前記搬送流体を磁選流路50cに導入するとともに、磁選流路50cの前記一端側の開閉弁のうち開閉弁105aのみを開放して、磁気フィルタ50cから脱離した状態の前記磁着物を前記搬送流体に搬送させて、磁選流路50cから磁着物排出流路105bに排出し、磁着物回収部105c内に回収する(磁着物選別工程)。
選別装置100では、各開閉弁の操作により、前記非磁着物選別工程及び前記磁着物選別工程を磁気フィルタ50の磁着容量に応じて切替えながら繰り返し実施することで、前記被選別流体から前記磁着物と前記非磁着物とを分離させて選別することができる。
即ち、図1(b)に示すように、前記非磁着物選別工程が実施された時点で、磁選流路50cの前記一端側に磁気フィルタ50bによる選別が行われていない未選別の前記被選別流体が留まり、また、磁選流路50cの前記他端側に非磁着物排出流路103bに排出されるべき前記磁着物が磁着された前記被選別流体が留まった状態となる。この状態で、各開閉弁及び電磁石50aの操作に基づき、前記非磁着物選別工程から前記磁着物選別工程への切替えを行うと、磁選流路50c内に留まった状態の未選別の前記被選別流体及び非磁着物排出流路103bに排出されるべき前記磁着物が磁着された前記被選別流体が磁着物排出流路105bに排出されることとなり、磁着物回収部105cに意図しない前記非磁着物が混入する問題がある。
<1> 磁着物と非磁着物との混合物である被選別流体から前記磁着物と前記非磁着物とを分離して選別可能な選別装置であって、電磁石と、前記電磁石が発生させる磁場により前記磁着物を磁着脱可能な磁気フィルタと、外部に前記電磁石が配されるとともに内部に前記磁気フィルタが配される磁選流路とを有する高勾配磁気分離部と、前記磁選流路の一端側と第1開閉弁を介して接続され、前記被選別流体を前記磁選流路に導入可能とされる被選別流体導入流路と、前記磁選流路の前記一端側と第2開閉弁を介して接続され、前記被選別流体を搬送可能な第1搬送流体を前記磁選流路に導入可能とされる第1搬送流体導入流路と、前記磁選流路の他端側と第3開閉弁を介して接続され、前記磁着物が前記磁気フィルタに磁着された状態の前記被選別流体及び前記第1搬送流体を前記磁選流路から排出可能とされる非磁着物排出流路と、前記磁選流路の前記他端側と第4開閉弁を介して接続され、前記磁気フィルタから脱離された状態の前記磁着物を搬送可能な第2搬送流体を前記磁選流路に導入可能とされる第2搬送流体導入流路と、前記磁選流路の前記一端側と第5開閉弁を介して接続され、前記磁気フィルタから脱離された前記磁着物を搬送する状態の前記第2搬送流体を前記磁選流路から排出可能とされる磁着物排出流路と、を有することを特徴とする選別装置。
<2> 更に、磁選流路の他端側に第6開閉弁を介して接続され、磁気フィルタに残存する残存物を搬送する状態の第1搬送流体を前記磁選流路から排出可能とされる残存物排出流路を有する前記<1>に記載の選別装置。
<3> 前記<1>から<2>のいずれかに記載の選別装置を用いて被選別流体から磁着物と非磁着物とを分離して選別する選別方法であって、電磁石が励磁された状態の磁選流路に対し、前記磁選流路一端側の開閉弁のうち第1開閉弁のみを開放して被選別流体導入流路から前記被選別流体を導入して磁気フィルタに前記磁着物を磁着させるとともに、前記磁選流路他端側の開閉弁のうち第3開閉弁のみを開放して前記磁着物が磁着された状態の前記被選別流体を非磁着物排出流路に排出する非磁着物選別工程と、前記非磁着物選別工程後、前記電磁石が励磁された状態の前記磁選流路に対し、前記磁選流路一端側の開閉弁のうち第2開閉弁のみを開放して第1搬送流体導入流路から第1搬送流体を導入するとともに、前記磁選流路他端側の開閉弁のうち前記第3開閉弁のみを開放して、前記磁選流路に残存する前記磁着物が前記磁気フィルタに磁着された状態の前記被選別流体を前記第1搬送流体に搬送させて、これらを前記磁選流路から前記非磁着物排出流路に排出する残存非磁着物選別工程と、前記残存非磁着物選別工程後、前記電磁石の励磁が解除された状態の前記磁選流路に対し、前記磁選流路他端側の開閉弁のうち第4開閉弁のみを開放して第2搬送流体導入流路から第2搬送流体を導入するとともに、前記磁選流路一端側の開閉弁のうち第5開閉弁のみを開放して、前記磁気フィルタから脱離した状態の前記磁着物を前記第2搬送流体に搬送させて、これらを前記磁選流路から磁着物排出流路に排出する磁着物選別工程と、を含むことを特徴とする選別方法。
<4> 非磁着物選別工程と、残存非磁着物選別工程と、磁着物選別工程とを一連の工程として、繰り返し実施する前記<3>に記載の選別方法。
<5> 残存非磁着物選別工程と磁着物選別工程との間に、前記電磁石が励磁された状態の前記磁選流路に対し、前記磁選流路一端側の開閉弁のうち第2開閉弁のみを開放して第1搬送流体導入流路から第1搬送流体を導入するとともに、前記磁選流路他端側の開閉弁のうち第6開閉弁のみを開放して、磁気フィルタに残存する残存物を前記第1搬送流体に搬送させて、これらを前記磁選流路から残存物排出流路に排出する残存物排出工程を実施する前記<3>から<4>のいずれかに記載の選別方法。
本発明の選別装置は、磁着物と非磁着物との混合物である被選別流体から前記磁着物と前記非磁着物とを分離して選別可能な選別装置であって、少なくとも、高勾配磁気分離部と、被選別流体導入流路と、第1搬送流体導入流路と、非磁着物排出流路と、第2搬送流体導入流路と、磁着物排出流路と、を有し、更に、必要に応じて、残存物排出流路等の任意の部材を有する。
また、前記磁着物としては、以下で説明する前記磁気フィルタで磁着可能に設定される磁着物が該当し、前記設定により、高磁化率の磁性材のみを対象としてもよいし、低磁化率の磁性材を含めて対象としてもよい。即ち、前記磁気フィルタで磁着可能であるかは、前記電磁石が発生させる磁束密度の大きさ及び前記磁気フィルタが形成する磁気勾配の大きさにより変更可能に設定することができ、ここでは、前記磁気フィルタに磁着されるように設定された磁性材を前記磁着物と称し、これ以外の材を前記非磁着物と称する。
前記高勾配磁気分離部は、電磁石と、前記電磁石が発生させる磁場により前記磁着物を磁着脱可能な磁気フィルタと、外部に前記電磁石が配されるとともに内部に前記磁気フィルタが配される磁選流路とを有する。
また、前記磁気フィルタとしては、特に制限はなく、公知の高勾配磁選機に用いられる磁気フィルタを広く適用することができる。
また、前記磁選流路の構成材としては、特に制限はなく、目的に応じて適宜選択することができ、公知のステンレス製配管等を広く適用することができる。
前記被選別流体導入流路は、前記磁選流路の一端側と第1開閉弁を介して接続され、前記被選別流体を前記磁選流路に導入可能とされる。
また、前記被選別流体導入流路の構成材としては、前記磁選流路と同様、特に制限はなく、目的に応じて適宜選択することができ、公知のステンレス製配管等を広く適用することができる。
前記被選別流体導入流路の付属構成としては、特に制限はなく、例えば、この流路に前記被選別流体を導入するポンプや前記被選別流体の貯留部が接続されていてもよい。
前記第1搬送流体導入流路は、前記磁選流路の前記一端側と第2開閉弁を介して接続され、前記被選別流体を搬送可能な第1搬送流体を前記磁選流路に導入可能とされる。
本発明に係る前記選別装置では、この第1搬送流体導入流路を配し、前記非磁着物選別工程の実施後、前記磁選流路内に留まっている前記被選別流体を前記第1搬送流体で前記磁選流路外に搬送することによって、図1(b)を用いて説明した、従来の選別装置における前記非磁着物選別工程から前記磁着物選別工程への切替え時に、前記磁選流路内に留まった状態の未選別の前記被選別流体等が前記磁着物排出流路に排出される問題を解消することができる。
また、前記第2開閉弁としては、前記第1開閉弁と同様、他の開閉弁から独立して開閉制御可能であれば特に制限はなく、目的に応じて適宜選択することができ、他の開閉弁から物理的に独立した公知の開閉弁(2方弁)を用いてもよいし、他の開閉弁と一体的に構成される公知の3方弁、4方弁を用いてもよい。
また、前記第1搬送流体導入流路の構成材としては、前記磁選流路と同様、特に制限はなく、目的に応じて適宜選択することができ、公知のステンレス製配管等を広く適用することができる。
また、前記第1搬送流体導入流路の付属構成としては、特に制限はなく、例えば、この流路に前記第1搬送流体を導入するポンプや前記第1搬送流体の貯留部が接続されていてもよいし、前記第1搬送流体として水を用いる場合には、前記第1搬送流体導入流路を水道管に接続してもよい。なお、前記第1搬送流体として水と水以外の前記リンス液とを併用する場合には、別途、開閉弁を配して選択的に前記第1搬送流体導入流路に導入することができる。
前記非磁着物排出流路は、前記磁選流路の他端側と第3開閉弁を介して接続され、前記磁着物が前記磁気フィルタに磁着された状態の前記被選別流体及び前記第1搬送流体を前記磁選流路から排出可能とされる。
また、前記非磁着物排出流路の構成材としては、前記磁選流路と同様、特に制限はなく、目的に応じて適宜選択することができ、公知のステンレス製配管等を広く適用することができる。
また、前記非磁着物排出流路の付属構成としては、特に制限はなく、例えば、前記非磁着物を回収する非磁着物回収部が挙げられる。前記非磁着物回収部としては、例えば、一般的な回収容器であってもよいし、こうした回収容器に前記磁気フィルタで選別し切れなかった前記磁着物を濾別する濾過装置が取り付けられたものであってもよい。なお、前記回収容器で構成する場合、前記磁気フィルタで選別し切れなかった前記磁着物を選別するために、回収物を再度、前記被選別流体導入流路に循環させて導入してもよい。
前記第2搬送流体導入流路は、前記磁選流路の前記他端側と第4開閉弁を介して接続され、前記磁気フィルタから脱離された状態の前記磁着物を搬送可能な第2搬送流体を前記磁選流路に導入可能とされる。
また、前記第4開閉弁としては、前記第1開閉弁と同様、他の開閉弁から独立して開閉制御可能であれば特に制限はなく、目的に応じて適宜選択することができ、他の開閉弁から物理的に独立した公知の開閉弁(2方弁)を用いてもよいし、他の開閉弁と一体的に構成される公知の3方弁、4方弁を用いてもよい。
また、前記第2搬送流体導入流路の構成材としては、前記磁選流路と同様、特に制限はなく、目的に応じて適宜選択することができ、公知のステンレス製配管等を広く適用することができる。
また、前記第2搬送流体導入流路の付属構成としては、特に制限はなく、例えば、この流路に前記第2搬送流体を導入するポンプや前記第2搬送流体の貯留部が接続されていてもよいし、前記第2搬送流体として水を用いる場合には、前記第2搬送流体導入流路を水道管に接続してもよい。
前記磁着物排出流路は、前記磁選流路の前記一端側と第5開閉弁を介して接続され、前記磁気フィルタから脱離された前記磁着物を搬送する状態の前記第2搬送流体を前記磁選流路から排出可能とされる。
また、前記磁着物排出流路の構成材としては、前記磁選流路と同様、特に制限はなく、目的に応じて適宜選択することができ、公知のステンレス製配管等を広く適用することができる。
また、前記磁着物排出流路の付属構成としては、特に制限はなく、例えば、前記磁着物を回収する磁着物回収部が挙げられる。前記磁着物回収部としては、例えば、一般的な回収容器であってもよいし、こうした回収容器に前記第2搬送流体と前記磁着物とを濾別する濾過装置が取り付けられたものであってもよい。
前記残存物排出流路は、前記磁選流路の前記他端側に第6開閉弁を介して接続され、前記磁気フィルタに残存する残存物を搬送する状態の前記第1搬送流体を前記磁選流路から排出可能とされる。
本発明に係る前記選別装置では、前記第2搬送流体導入流路と独立して前記第1搬送流体導入流路を配したことにより、前記第1搬送流体として前記リンス液を前記磁選流路に導入して、前記磁気フィルタに残存する前記残存物(前記磁着物や前記被選別流体に含まれる懸濁粒子等)を前記磁気フィルタから洗い流し、前記磁選流路から排出することができる。
また、前記残存物排出流路の構成材としては、前記磁選流路と同様、特に制限はなく、目的に応じて適宜選択することができ、公知のステンレス製配管等を広く適用することができる。
また、前記残存物排出流路の付属構成としては、特に制限はなく、例えば、前記残存物を回収する残存物回収部が挙げられる。前記残存物回収部としては、例えば、一般的な回収容器であってもよいし、こうした回収容器に前記磁気フィルタから洗い流された前記磁着物や前記懸濁粒子等を濾別する濾過装置が取り付けられたものであってもよい。なお、前記前記残存物回収部で回収された回収物としては、再度、前記被選別流体導入流路に循環させて導入してもよい。
本発明に係る選別方法は、本発明に係る前記選別装置を用いて前記被選別流体から前記磁着物と前記非磁着物とを分離して選別する選別方法であって、少なくとも、非磁着物選別工程と、残存非磁着物選別工程と、磁着物選別工程と、を含み、更に、必要に応じて、残存物排出工程等の任意の工程を含む。なお、各工程の実施に用いられる前記選別装置の内容については、前記選別装置における説明と重複するため、説明を省略する。
前記非磁着物選別工程は、前記電磁石が励磁された状態の前記磁選流路に対し、前記磁選流路一端側の開閉弁のうち前記第1開閉弁のみを開放して前記被選別流体導入流路から前記被選別流体を導入して前記磁気フィルタに前記磁着物を磁着させるとともに、前記磁選流路他端側の開閉弁のうち第3開閉弁のみを開放して前記磁着物が磁着された状態の前記被選別流体を非磁着物排出流路に排出する工程である。
前記残存非磁着物選別工程は、前記非磁着物選別工程後、前記電磁石が励磁された状態の前記磁選流路に対し、前記磁選流路一端側の開閉弁のうち第2開閉弁のみを開放して第1搬送流体導入流路から第1搬送流体を導入するとともに、前記磁選流路他端側の開閉弁のうち前記第3開閉弁のみを開放して、前記磁選流路に残存する前記磁着物が前記磁気フィルタに磁着された状態の前記被選別流体を前記第1搬送流体に搬送させて、これらを前記磁選流路から前記非磁着物排出流路に排出する工程である。
本発明に係る前記選別方法では、前記非磁着物選別工程の実施後、前記磁選流路内に留まっている前記被選別流体を、前記磁着物が前記磁気フィルタに磁着された状態の前記被選別流体として前記第1搬送流体により搬送させて前記磁選流路外に排出することによって、図1(b)を用いて説明した、従来の選別装置における前記非磁着物選別工程から前記磁着物選別工程への切替え時に、前記磁選流路内に留まった状態の未選別の前記被選別流体等が前記磁着物排出流路に排出される問題を解消することができる。
前記磁着物選別工程は、前記残存非磁着物選別工程後、前記電磁石の励磁が解除された状態の前記磁選流路に対し、前記磁選流路他端側の開閉弁のうち前記第4開閉弁のみを開放して第2搬送流体導入流路から前記第2搬送流体を導入するとともに、前記磁選流路一端側の開閉弁のうち前記第5開閉弁のみを開放して、前記磁気フィルタから脱離した状態の前記磁着物を前記第2搬送流体に搬送させて、これらを前記磁選流路から磁着物排出流路に排出する工程である。
前記残存物排出工程は、前記残存非磁着物選別工程と前記磁着物選別工程との間に、前記電磁石が励磁された状態の前記磁選流路に対し、前記磁選流路一端側の開閉弁のうち前記第2開閉弁のみを開放して前記第1搬送流体導入流路から前記第1搬送流体を導入するとともに、前記磁選流路他端側の開閉弁のうち前記第6開閉弁のみを開放して、前記磁気フィルタに残存する残存物を前記第1搬送流体に搬送させて、これらを前記磁選流路から前記残存物排出流路に排出する工程である。
本発明に係る前記選別方法では、前記第2搬送流体と独立して前記第1搬送流体を導入することにより、前記第1搬送流体として前記リンス液を前記磁選流路に導入して、前記磁気フィルタに残存する前記残存物(前記磁着物や前記被選別流体に含まれる懸濁粒子等)を前記磁気フィルタから洗い流し、前記磁選流路から排出することができる。
なお、前記非磁着物選別工程、前記残存非磁着物選別工程及び前記磁着物選別工程を一連の工程として実施する場合、前記残存物排出工程も一連の工程として実施することができ、この場合、前記残存物排出工程後に実施される前記磁着物選別工程において、前記残存物、特に前記磁着物以外の粒子の混入が抑制された高純度の前記磁着物を回収することができる。
なお、図中、磁選流路50cの前記一端側に配される第1開閉弁1a、第2開閉弁2a、第5開閉弁5aは、2方弁としているが、これらの開閉弁を一体化させた3方弁、4方弁として構成してもよい。同様に、磁選流路50cの前記他端側に配される第3開閉弁3a、第4開閉弁4a、第6開閉弁6aは、2方弁としているが、これらの開閉弁を一体化させた3方弁、4方弁として構成してもよい。
先ず、図2(a)中の矢印で示すように、電磁石50aが励磁された状態の磁選流路50cに対し、磁選流路50cの前記一端側の開閉弁のうち第1開閉弁1aのみを開放し、前記被選別流体の貯留部1cからポンプ1dにより被選別流体導入流路1bに導入される前記被選別流体を磁選流路50cに導入して磁気フィルタ50bに前記磁着物を磁着させるとともに、磁選流路50cの前記他端側の開閉弁のうち、第3開閉弁3aのみを開放して前記磁着物が磁着された状態の前記被選別流体を非磁着物排出流路3bに排出して非磁着物回収部3c内に回収する(前記非磁着物選別工程)。この非磁着物選別工程後の磁選流路50c内には、前記一端側に磁気フィルタ50bによる選別が行われていない未選別の前記被選別流体が留まり、また、磁選流路50cの前記他端側に非磁着物排出流路3bに排出されるべき前記磁着物が磁着された前記被選別流体が留まった状態となる(図2(b)参照)。
したがって、前記被選別流体から前記磁着物と前記非磁着物とを高精度かつ高効率に選別することができる。
1b 被選別流体導入流路
1c 貯留部
1d ポンプ
2a 第2開閉弁
2b 第1搬送流体導入流路
2c 貯留部
3a 第3開閉弁
3b 非磁着物排出流路
3c 非磁着物回収部
4a 第4開閉弁
4b 第2搬送流体導入流路
5a 第5開閉弁
5b 磁着物排出流路
5c 磁着物回収部
6a 第6開閉弁
6b 残存物排出流路
6c 残存物回収部
10,100 選別装置
50 高勾配磁気分離部
50a 電磁石
50b 磁気フィルタ
50c 磁選流路
101a,103a,104a,105a 開閉弁
101b 被選別流体導入流路
101c 貯留部
101d ポンプ
103b 非磁着物排出流路
103c 非磁着物回収部
104b 搬送流体導入流路
105b 磁着物排出流路
105c 磁着物回収部
Claims (5)
- 磁着物と非磁着物との混合物である被選別流体から前記磁着物と前記非磁着物とを分離して選別可能な選別装置であって、
電磁石と、前記電磁石が発生させる磁場により前記磁着物を磁着脱可能な磁気フィルタと、外部に前記電磁石が配されるとともに内部に前記磁気フィルタが配される磁選流路とを有する高勾配磁気分離部と、
前記磁選流路の一端側と第1開閉弁を介して接続され、前記被選別流体を前記磁選流路に導入可能とされる被選別流体導入流路と、
前記磁選流路の前記一端側と第2開閉弁を介して接続され、前記被選別流体を搬送可能な第1搬送流体を前記磁選流路に導入可能とされる第1搬送流体導入流路と、
前記磁選流路の他端側と第3開閉弁を介して接続され、前記磁着物が前記磁気フィルタに磁着された状態の前記被選別流体及び前記第1搬送流体を前記磁選流路から排出可能とされる非磁着物排出流路と、
前記磁選流路の前記他端側と第4開閉弁を介して接続され、前記磁気フィルタから脱離された状態の前記磁着物を搬送可能な第2搬送流体を前記磁選流路に導入可能とされる第2搬送流体導入流路と、
前記磁選流路の前記一端側と第5開閉弁を介して接続され、前記磁気フィルタから脱離された前記磁着物を搬送する状態の前記第2搬送流体を前記磁選流路から排出可能とされる磁着物排出流路と、
を有することを特徴とする選別装置。 - 更に、磁選流路の他端側に第6開閉弁を介して接続され、磁気フィルタに残存する残存物を搬送する状態の第1搬送流体を前記磁選流路から排出可能とされる残存物排出流路を有する請求項1に記載の選別装置。
- 請求項1から2のいずれかに記載の選別装置を用いて被選別流体から磁着物と非磁着物とを分離して選別する選別方法であって、
電磁石が励磁された状態の磁選流路に対し、前記磁選流路一端側の開閉弁のうち第1開閉弁のみを開放して被選別流体導入流路から前記被選別流体を導入して磁気フィルタに前記磁着物を磁着させるとともに、前記磁選流路他端側の開閉弁のうち第3開閉弁のみを開放して前記磁着物が磁着された状態の前記被選別流体を非磁着物排出流路に排出する非磁着物選別工程と、
前記非磁着物選別工程後、前記電磁石が励磁された状態の前記磁選流路に対し、前記磁選流路一端側の開閉弁のうち第2開閉弁のみを開放して第1搬送流体導入流路から第1搬送流体を導入するとともに、前記磁選流路他端側の開閉弁のうち前記第3開閉弁のみを開放して、前記磁選流路に残存する前記磁着物が前記磁気フィルタに磁着された状態の前記被選別流体を前記第1搬送流体に搬送させて、これらを前記磁選流路から前記非磁着物排出流路に排出する残存非磁着物選別工程と、
前記残存非磁着物選別工程後、前記電磁石の励磁が解除された状態の前記磁選流路に対し、前記磁選流路他端側の開閉弁のうち第4開閉弁のみを開放して第2搬送流体導入流路から第2搬送流体を導入するとともに、前記磁選流路一端側の開閉弁のうち第5開閉弁のみを開放して、前記磁気フィルタから脱離した状態の前記磁着物を前記第2搬送流体に搬送させて、これらを前記磁選流路から磁着物排出流路に排出する磁着物選別工程と、
を含むことを特徴とする選別方法。 - 非磁着物選別工程と、残存非磁着物選別工程と、磁着物選別工程とを一連の工程として、繰り返し実施する請求項3に記載の選別方法。
- 残存非磁着物選別工程と磁着物選別工程との間に、前記電磁石が励磁された状態の前記磁選流路に対し、前記磁選流路一端側の開閉弁のうち第2開閉弁のみを開放して第1搬送流体導入流路から第1搬送流体を導入するとともに、前記磁選流路他端側の開閉弁のうち第6開閉弁のみを開放して、磁気フィルタに残存する残存物を前記第1搬送流体に搬送させて、これらを前記磁選流路から残存物排出流路に排出する残存物排出工程を実施する請求項3から4のいずれかに記載の選別方法。
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