JP2013202536A - Separation device and method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a separation device and a method enabling high separation efficiency of magnetic powder and non-magnetic powder even when the magnetic powder and the non-magnetic powder are dispersed in liquid.SOLUTION: A separation device separates magnetic powder and non-magnetic powder from a liquid mixture including the magnetic powder and the non-magnetic powder. The separation device includes a support table, a container, a first supply port, a discharge port, a support column, a lifting/lowering part, a magnetic body, a rotating mechanism, a non-magnetic body, a second supply port and a fixation part. The container stores the liquid mixture including the magnetic powder and the non-magnetic powder. The discharge port is used for discharging the liquid mixture from inside of the container to outside. The rotating mechanism rotates the magnetic body about a central axis of the magnetic body. The non-magnetic body is disposed within the container to store the magnetic body, leaving a clearance on an outer periphery of the magnetic body. The second supply port is disposed on an outer periphery of the non-magnetic body, leaving a clearance, and supplies cleaning fluid onto the outer periphery of the non-magnetic body.

Description

  Embodiments of the present invention relate to a separation apparatus and method.

  In general, as a method of separating a magnetic material and a non-magnetic material, there is a separation method using a magnet. This separation method is used, for example, when separating an aluminum can and a steel can.

  The separation method is also used when a magnetic material and a nonmagnetic material are dispersed in a liquid. Specifically, a magnet is immersed in a liquid in which a magnetic body and a non-magnetic body are dispersed, and only the magnetic body is attached to the magnet surface. Thereafter, the magnetic body and the non-magnetic body are separated by pulling up the magnet from the liquid or discharging the liquid from the container.

JP 2000-254546 A

  However, in the separation method as described above, when a magnetic substance of powder (hereinafter referred to as magnetic powder) and a non-magnetic substance (hereinafter referred to as nonmagnetic powder) are dispersed in a liquid, When the powder adheres to the magnet, it adheres while entraining a part of the non-magnetic powder, so the magnetic powder and the non-magnetic powder cannot be completely separated. There is a disadvantage that the separation efficiency is low.

  The problem to be solved by the present invention is to provide a separation apparatus and method having high separation efficiency between magnetic powder and nonmagnetic powder even when magnetic powder and nonmagnetic powder are dispersed in a liquid. That is.

  The separation device of the embodiment separates the magnetic powder and the nonmagnetic powder from a mixed liquid containing the magnetic powder and the nonmagnetic powder.

  The separation device includes a support base, a container, a first supply port, a discharge port, a support column, an elevating unit, a magnetic body, a rotating mechanism, a non-magnetic body, a second supply port, and a fixing unit.

  The container is disposed on the support base and stores a mixed liquid containing magnetic powder and non-magnetic powder.

  The first supply port is disposed so as to be connected to the container, and supplies the mixed liquid into the container from the outside.

  The said discharge port is provided in the bottom part of the said container, and discharges a liquid mixture outside from the said container.

  The support column is erected in a region different from the container on the support base.

  The elevating part is attached to the upper part of the column so as to be movable up and down in the longitudinal direction of the column.

  The said magnetic body is rod-shaped, is suspended from the said raising / lowering part, and is arrange | positioned above the said container.

  The rotation mechanism rotates the magnetic body about the central axis of the magnetic body.

  The non-magnetic body is cylindrical and has a gap on the outer periphery of the magnetic body and is disposed in the container so as to accommodate the magnetic body.

  The second supply port is disposed with a gap on the outer periphery of the nonmagnetic material, and supplies the cleaning liquid onto the outer periphery of the nonmagnetic material.

  The fixing portion is disposed on the container and fixes the non-magnetic body and the second supply port.

It is the schematic diagram which showed the structural example of the separation apparatus which concerns on one Embodiment, and caught the said separation apparatus from the side surface. It is the schematic diagram which showed the structural example of the separation apparatus which concerns on the same embodiment, and caught the said separation apparatus from the front. It is a schematic diagram which shows the structural example of the raising / lowering part which concerns on the same embodiment. It is a schematic diagram which shows the structural example of the magnet mechanism which concerns on the same embodiment. It is a schematic diagram which shows the structural example of the 2nd supply port which concerns on the same embodiment. It is a mimetic diagram showing an example of a separation process by a separation device concerning the embodiment. It is a mimetic diagram showing an example of a separation process by a separation device concerning the embodiment. It is a mimetic diagram showing an example of a separation process by a separation device concerning the embodiment. It is a mimetic diagram showing an example of a separation process by a separation device concerning the embodiment. It is a mimetic diagram showing an example of a separation process by a separation device concerning the embodiment.

  FIG. 1 shows a configuration example of a separation device according to an embodiment, and is a schematic view of the separation device viewed from the side. FIG. 2 shows a configuration example of the separation device according to the embodiment, and shows the separation device in front. It is the schematic diagram caught from. As shown in FIGS. 1 and 2, the separation device 1 includes a support 2, a container 3, a first supply port 4, a discharge port 5, a column 6, a lifting / lowering unit 7, a guide rail 8, an electric winch 9, and a wire rope 10. , A plurality of magnetic bodies 11a, a plurality of nonmagnetic bodies 12, a plurality of second supply ports 13 and a fixing portion 14.

  A container (hereinafter referred to as a separation container) 3 is disposed on the support base 2 and stores a mixed liquid containing the magnetic powder M and the nonmagnetic powder N. As shown in FIG. 1, a first supply port (hereinafter referred to as an injection port) 4 is disposed at the top of the separation container 3, and at the bottom of the separation container 3, as shown in FIG. An outlet (hereinafter referred to as a discharge valve) 5 is disposed. In addition, as long as the separation container 3 is made of a non-magnetic material, a container having an arbitrary shape is applicable according to the properties and amount of the mixed liquid containing the magnetic powder M and the non-magnetic powder N. .

  The injection port 4 is for injecting (supplying) the liquid mixture into the separation container 3 from the outside. The discharge valve 5 is for discharging the liquid mixture in the separation container 3 to the outside. In the present embodiment, the injection port 4 is disposed at the top of the separation container 3 and the discharge valve 5 is disposed at the bottom of the separation container 3. However, the present invention is not limited to this. The discharge valve 5 can be disposed at any position as long as it is connected to the separation container 3.

  However, in order to prevent the backflow of the mixed solution stored in the separation container 3, the injection port 4 is preferably disposed above the water surface when the mixed solution is full. Further, the discharge valve 5 is preferably disposed at the lowermost part of the separation container 3 in order to discharge the entire amount of the liquid mixture stored in the separation container 3.

  The column 6 is erected in a region different from the separation container 3 on the support 2. Further, a guide rail 8 is attached to the support column 6 so as to be able to move up and down an elevating unit 7 described later and to define a direction in which the elevating unit 7 can move.

  The elevating part 7 is attached to the upper part of the support 6 via an eyebolt so that it can be moved up and down in the longitudinal direction of the support 6, and the power from the electric winch 9 is supplied via the wire rope 10, It can move up and down in the specified direction. In the present embodiment, the configuration using the electric winch 9 as the linear drive source is shown, but the present invention is not limited to this. For example, a configuration using a hydraulic cylinder, a pneumatic cylinder, or a motor and a ball screw can be applied. It is.

  The range in which the elevating unit 7 can be raised and lowered is the same as the length of the guide rail 8, and the length of the guide rail 8 is set to be substantially the same as the length of a magnetic body 11a described later. Specifically, the length of the guide rail 8 is raised and lowered when the magnetic force from the magnetic body 11a acts on the mixed liquid in the separation container 3 when the lifting and lowering portion 7 is positioned at the lowermost part of the range in which the lifting and lowering portion 7 can move up and down. The length is set such that the magnetic force from the magnetic body 11a does not act on the liquid mixture in the separation container 3 when the portion 7 is positioned at the uppermost part of the range in which the portion 7 can be moved up and down.

  In addition, since the more detailed description of the raising / lowering part 7 is mentioned later, detailed description is abbreviate | omitted here.

  Each magnetic body (hereinafter, referred to as a magnet shaft) 11 a has a rod shape, is suspended from the elevating unit 7, and is disposed above the separation container 3. The magnet shaft 11a can be rotated (spinned) by a magnet mechanism 11 described later. In the present embodiment, a configuration using a plurality of magnet shafts 11a is shown, but the present invention is not limited to this. For example, a configuration using a single magnet shaft 11a may be used. The magnet shaft 11a may be any type of magnetic material (for example, a permanent magnet) as long as it has a magnetic field capable of attracting the magnetic powder M contained in the mixed liquid.

  Each non-magnetic body (hereinafter referred to as a magnet case) 12 has a cylindrical shape, and has a gap (in other words, a clearance) on the outer periphery of the magnet shaft 11a so as to accommodate the magnet shaft 11a. The magnetic powder M contained in the mixed liquid in the separation container 3 is adsorbed on the outer periphery by accommodating the magnet shaft 11 a that is disposed inside and raised and lowered by the elevating unit 7. Each magnet case 12 has a function of preventing the magnet shaft 11 a from being immersed in the mixed liquid in the separation container 3. Furthermore, each magnet case 12 is fixed by a fixing portion 14 described later. In addition, although the one where the clearance gap between the magnet shaft 11a and the magnet case 12 is smaller is preferable, it sets to the appropriate value according to balance with processing cost.

  Each of the second supply ports (hereinafter referred to as “cleaning nozzles”) 13 is disposed with a gap on the outer periphery of the magnet case 12 and has a function of supplying a cleaning liquid (for example, water) onto the outer periphery of the magnet case 12. Have. Thereby, only the non-magnetic powder N adsorbed together with the magnetic powder M on the outer periphery of the magnet case 12 can be washed off from the outer periphery of the magnet case 12. Further, each cleaning nozzle 13 is fixed by a fixing portion 14 described later. The clearance between the magnet case 12 and the cleaning nozzle 13 may be any value as long as the cleaning liquid can be supplied onto the outer periphery of the magnet case 12, but the magnetic powder M adsorbed on the outer periphery of the magnet case 12 (here Then, it is necessary to set a value larger than the thickness of the non-magnetic powder N adsorbed together with the magnetic powder M.

  The fixing part 14 is arranged on the upper part of the separation container 3 and fixes each magnet case 12 and each washing nozzle 13 in a fixed position. The fixing unit 14 also has a function as a lid that prevents foreign matters from being mixed into the liquid mixture stored in the separation container 3.

  Here, the more detailed structure of the raising / lowering part 7 is demonstrated, referring the schematic diagram of FIG.

  As shown in FIG. 3, the elevating unit 7 includes a main gear 7a, a timing pulley 7b, a timing belt 7c, and a motor 7d.

  The main gear 7a is rotated by power from a motor 7d supplied via a timing pulley 7b and a timing belt 7c. As the main gear 7a rotates, the power from the motor 7d is transmitted to the magnet mechanism 11 described later. In the present embodiment, the drive transmission system to the magnet mechanism 11 is the drive transmission system as described above. However, the present invention is not limited to this. For example, the motor 7d and the magnet mechanism 11 are directly coupled by coupling. Alternatively, a drive transmission system using a gear, a V belt, a flat belt, or the like may be used.

  Next, a more detailed configuration of the magnet mechanism 11 will be described with reference to the schematic diagram of FIG.

  As shown in FIG. 4, the magnet mechanism 11 includes a magnet shaft 11a, a shaft 11b, a connecting shaft 11c, a plurality of bearings 11d, a bearing housing 11e, and a dependent gear 11f.

  The magnet shaft 11a and the shaft 11b are fastened by a stud bolt (not shown) and a hexagon nut (not shown) via the connecting shaft 11c. The shaft 11b and the connecting shaft 11c are nonmagnetic materials. Further, in the present embodiment, the configuration in which the magnet shaft 11a and the shaft 11b are fastened by the stud bolt and the hexagon nut via the connection shaft 11c is shown, but the present invention is not limited to this. For example, the magnet shaft 11a and the shaft 11b The structure etc. which weld can be applied.

  Each bearing 11d is for supporting the outer diameter of the shaft 11b. The bearing housing 11e is for supporting the outer diameter of each bearing 11d, and the bearing housing 11e is fixed to the elevating part 7.

  The dependent gear 11f is fixed to one end of the shaft 11b (that is, the shaft end opposite to one end fastened to the magnet shaft 11a via the connecting shaft 11c) and meshes with the main gear 7a in the elevating unit 7. Arranged so as to rotate with the rotation of the main gear 7a. Thereby, the motive power from the motor 7d in the raising / lowering part 7 is transmitted to the dependent gear 11f via the main gear 7a. The dependent gear 11f rotates each magnet shaft 11a about the central axis of each magnet shaft 11a using the power from the motor 7d transmitted through the main gear 7a.

  Next, a more detailed configuration of the cleaning nozzle 13 will be described with reference to the schematic diagram of FIG.

  As shown in FIG. 5, the cleaning nozzle 13 includes a cleaning nozzle body 13a, a sealing material 13b, a cleaning nozzle fixing base 13c, a water storage part 13d, a slit 13e, a cleaning liquid supply pipe 13f, and a cleaning liquid supply port 13g.

  The cleaning nozzle body 13a is fixed to the fixing portion 14 via the sealing material 13b and the cleaning nozzle fixing base 13c.

  The water reservoir 13d is disposed between the cleaning nozzle body 13a and the cleaning nozzle fixing base 13c, and can store a predetermined amount of cleaning liquid. The slit 13e is disposed between the cleaning nozzle main body 13a and the cleaning nozzle fixing base 13c over the entire inner circumference of the cleaning nozzle 13, and the cleaning liquid stored in the water storage section 13d is supplied to the magnet case 12. It has a function to inject toward the outer periphery. The interval between the slits 13e can be set to an arbitrary value.

  The cleaning liquid supply pipe 13f is a flow path for the cleaning liquid supplied from the outside. The cleaning liquid supply port 13g is disposed at the outer diameter portion of the cleaning nozzle 13, and supplies the cleaning liquid supplied from the outside to the water storage section 13d through the cleaning liquid supply pipe 13f.

  Next, the separation process of the magnetic powder M and the nonmagnetic powder N using the separation apparatus 1 configured as described above will be described with reference to the schematic diagrams of FIGS.

  First, as shown in FIG. 6, the elevating unit 7 is lowered along the guide rail 8 by the power supplied from the electric winch 9 via the wire rope 10. As the elevating unit 7 descends, the magnet shaft 11 a suspended from the elevating unit 7 is inserted into the magnet case 12 with a gap. Thereby, the magnetic powder M in the mixed solution stored in the separation container 3 is adsorbed on the outer periphery of the magnet case 12 by the magnetic force from the magnet shaft 11a.

  Then, as shown in FIG. 7, it is left still for a fixed time with the state of step S1. Thereby, all the magnetic powder M in the mixed liquid is adsorbed on the outer periphery of the magnet case 12. At this time, a part of the non-magnetic powder N in the mixed liquid is adsorbed on the outer periphery of the magnet case 12 so as to be wound around the magnetic powder M.

  Next, the discharge valve 5 is opened, and the entire amount of the liquid mixture in the separation container 3 is discharged to the outside as shown in FIG. Thereby, of the nonmagnetic powder N in the mixed liquid, all of the nonmagnetic powder except for the nonmagnetic powder adsorbed on the outer periphery of the magnet case 12 together with the magnetic powder M is discharged to the outside.

  Subsequently, by driving the motor 7d in the elevating unit 7, the power from the motor 7d is transmitted to the subordinate gear 11f in the magnet mechanism 11 via the main gear 7a, and as shown in FIG. 9, the magnet shaft 11a Rotates. Thereby, a shearing force is generated between each particle of the magnetic powder M adsorbed on the outer periphery of the magnet case 12, and the nonmagnetic powder N adsorbed on the outer periphery of the magnet case 12 becomes the magnetic powder M. Scraped to the surface. The magnet shaft 11a does not continue to rotate in a certain direction, but rotates clockwise and then counterclockwise, or by repeatedly rotating and stopping, the efficiency of scraping the nonmagnetic powder N is increased. Can be raised.

  As shown in FIG. 10, the cleaning nozzle 13 supplies a cleaning liquid onto the outer periphery of the magnet case 12. Thereby, the nonmagnetic powder N scraped out in step S4 is washed away, and the separation process of the magnetic powder M and the nonmagnetic powder N is completed. The amount of the cleaning liquid supplied from the cleaning nozzle 13 may be an amount that wets the outer periphery of the magnet case 12.

  In the present embodiment, the configuration of the separation apparatus 1 in which two sets of the magnet mechanism 11, the magnet case 12, and the cleaning nozzle 13 are provided has been described. However, the magnet mechanism 11, the magnet case 12, and the cleaning nozzle 13 are separated. It is necessary to provide a number proportional to the amount of the magnetic powder M contained in the mixed liquid in the container 3.

  According to the embodiment described above, the magnetic powder M in the mixed solution is adsorbed on the outer periphery of the magnet case 12, and the magnetic powder M is adsorbed together with the magnetic powder M by generating a shearing force. The magnetic powder and the non-magnetic powder are dispersed in the liquid by the configuration including the magnet mechanism 11 for scraping the non-magnetic powder N and the cleaning nozzle 13 for washing off the scraped non-magnetic powder N. Even in this case, the separation efficiency between the magnetic powder and the non-magnetic powder can be increased.

  In addition, although some embodiment of this invention was described, these embodiment is shown as an example and is not intending limiting the range of invention. These novel embodiments can be implemented in various other forms, and various omissions, replacements, and changes can be made without departing from the scope of the invention. These embodiments and modifications thereof are included in the scope and gist of the invention, and are included in the invention described in the claims and the equivalents thereof.

  Examples of the present embodiment will be described below.

[Example 1]
In the present embodiment, the separation container 3 has a capacity of 30 L (liters), the gap between the outer diameter of the magnet shaft 11 a and the inner diameter of the magnet case 12 is 4.5 mm (millimeters), and the bottom surface of the magnet shaft 11 a and the magnet Using the separation device 1 in which the gap between the inside of the bottom surface of the case 12 is 5 mm, the gap between the outer diameter of the magnet case 12 and the inner diameter of the cleaning nozzle 13 is 5 mm, and the interval between the slits 13e is 1 mm, The separation process of the powder M and the nonmagnetic powder N was performed.

  First, 100 g (gram) of ferrite and 20 g of a mixed powder of silicon, barium titanate, and nickel were placed in the separation container 3 and adjusted to 30 L using water.

  Subsequently, the separation step was performed. The cleaning liquid was supplied to each magnet shaft 11a at an amount of 10 mL per second for 1 minute, and this was repeated three times.

  As a result, it was confirmed that the ferrite (that is, magnetic powder) and the mixed powder (that is, nonmagnetic powder) were almost separated.

[Example 2]
In the present embodiment, as in the first embodiment, the separation container 3 has a capacity of 30 L (liters), and the gap between the outer diameter of the magnet shaft 11 a and the inner diameter of the magnet case 12 is 4.5 mm (millimeters). The gap between the bottom surface of the magnet shaft 11a and the inside of the bottom surface of the magnet case 12 is 5 mm, the gap between the outer diameter of the magnet case 12 and the inner diameter of the cleaning nozzle 13 is 5 mm, and the gap between the slits 13e is 1 mm. The separation process of the magnetic powder M and the nonmagnetic powder N was performed using the separation apparatus 1.

  First, 100 g of magnetite and 40 g of gear oil were put in the separation container 3 and adjusted to 30 L using water.

  Subsequently, the separation step was performed. The cleaning liquid was supplied to each magnet shaft 11a at an amount of 10 mL per second for 1 minute, and this was repeated three times.

  Thereby, it was confirmed that magnetite (that is, magnetic powder) and gear oil (that is, nonmagnetic powder) were almost separated.

  DESCRIPTION OF SYMBOLS 1 ... Separation apparatus, 2 ... Support stand, 3 ... Container (separation container), 4 ... 1st supply port (injection port), 5 ... Discharge port (discharge valve), 6 ... Support | pillar, 7 ... Elevating part, 7a ... Main Gears, 7b ... Timing pulley, 7c ... Timing belt, 7d ... Motor, 8 ... Guide rail, 9 ... Electric winch, 10 ... Wire rope, 11 ... Magnet mechanism, 11a ... Magnetic body (magnet shaft), 11b ... Shaft, 11c ... connecting shaft, 11d ... bearing, 11e ... bearing housing, 11f ... subordinate gear, 12 ... non-magnetic material (magnet case), 13 ... second supply port (washing nozzle), 13a ... washing nozzle body, 13b ... sealing material, 13c ... Cleaning nozzle fixing base, 13d ... Water storage part, 13e ... Slit, 13f ... Cleaning liquid supply pipe, 13g ... Cleaning liquid supply port, 14 ... Fixing part, M ... Magnetic Body, N ... non-magnetic powder.

Claims (5)

A separation device for separating the magnetic powder and the nonmagnetic powder from a mixed liquid containing the magnetic powder and the nonmagnetic powder,
A support base;
A container that is disposed on the support and stores a mixed liquid containing magnetic powder and non-magnetic powder;
A first supply port that is arranged to be connected to the container and supplies the liquid mixture into the container from the outside;
Provided at the bottom of the container, and a discharge port for discharging the mixed liquid from the container to the outside;
A column erected in a region different from the container on the support;
An elevating part attached to the upper part of the support so that it can be raised and lowered in the longitudinal direction of the support;
A rod-shaped magnetic body suspended from the elevating unit and disposed above the container;
A rotation mechanism for rotating the magnetic body around the central axis of the magnetic body;
A cylindrical non-magnetic body having a gap on the outer periphery of the magnetic body and disposed in the container so as to accommodate the magnetic body;
A second supply port that is disposed on the outer periphery of the non-magnetic body with a gap and supplies a cleaning liquid onto the outer periphery of the non-magnetic body;
A separation device, comprising: a fixing portion that is disposed on the upper portion of the container and fixes the nonmagnetic material and the second supply port. The separation device according to claim 1,
The rotating mechanism scrapes the non-magnetic powder adsorbed together with the magnetic powder onto the outer surface of the non-magnetic body in a state where the magnetic body is accommodated in the non-magnetic body. The magnetic device is rotated as described above. The separation device according to claim 2,
The separation device, wherein the second supply port supplies a cleaning liquid to the nonmagnetic powder so as to wash off the scraped nonmagnetic powder. A separation method for separating magnetic powder and non-magnetic powder in a mixed solution stored in the container using the separation apparatus according to claim 1,
A first step of inserting the magnetic body into the non-magnetic body;
A second step of leaving the magnetic body inserted in the non-magnetic body;
A third step of discharging the stored mixed liquid from the discharge port;
A fourth step of rotating the magnetic body by the rotating mechanism and scraping the non-magnetic powder adsorbed together with the magnetic powder adsorbed on the outer periphery of the non-magnetic body onto the surface of the magnetic powder;
And a fifth step of supplying a cleaning liquid to the scraped non-magnetic powder using the second supply port, and washing off the non-magnetic powder. The separation method according to claim 4, wherein
The separation method according to claim 5, wherein the fifth step is performed simultaneously with the fourth step.

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