JP4129548B2 - Continuous magnetic separator - Google Patents

Description

  The present invention relates to a magnetic separation apparatus for separating a suspended solid by a magnetic force from a liquid to be treated after a substance in the liquid to be treated is made a floating solid having magnetism with a flocculant containing magnetic fine particles. In particular, the present invention relates to a continuous magnetic separation device capable of continuously separating the suspended solids.

  In general, water purification treatment for water, sewage, industrial wastewater, etc., especially when separating eutrophic sludge (mainly phosphorus-containing material) from the treated water, before performing the actual separation treatment, high gradient A flocculant containing a ferrite (powdered or granular ferromagnet: hereinafter referred to as magnetic fine particles) generated using a magnetic field, such as magnetite, is used to preliminarily remove contaminants in the water to be treated. It is a floating solid (floc).

  Further, when a useful substance is to be recovered from a liquid to be treated containing noble metal or the like, a similar floating solid is formed.

  Then, the liquid to be treated in this state is led into a conduit made of a non-magnetic material around which a superconducting solenoid coil is wound, and a magnetic field is generated in the conduit by energizing the superconducting solenoid coil. A filter-type magnetic separation device has been proposed in which a liquid to be treated is filtered through a filter placed therein, and thereafter, suspended solids adhering thereto are discarded or collected from the filter.

  That is, such a magnetic separation device becomes a purification device for the liquid to be treated when the substance in the liquid to be treated is exclusively polluted, and from the liquid to be treated when the substance in the liquid to be treated is useful. It becomes a collection device of useful substances.

  The filter type magnetic separation apparatus is excellent in that it can use a magnetic field in a direction parallel to the flow of the liquid to be processed and has good separation efficiency of the floating solid by the filter, but captures the floating solid in the liquid to be processed. As the filter is clogged, it is necessary to clean the filter intermittently. During this time, the magnetic field has to be turned off, and there is a problem that continuous operation cannot be performed.

  Therefore, a magnetic separation device that generates a magnetic field in a direction perpendicular to the flow of the liquid to be processed without using a filter and captures the suspended solids in the liquid to be processed using the inner wall surface of the conduit has been proposed. .

However, in this system, since magnets of different polarities face each other on the outside of the conduit, a generally uniform magnetic field is generated along the inner wall surface of the conduit, and there is a problem that suspended solids cannot be captured effectively.
This is because the ability to capture suspended solids is proportional not only to the magnetic flux density but also to the product of the magnetic flux density and the gradient of the magnetic flux density.

  In order to solve this problem, the inventors of the present invention disclosed, in Patent Document 1, an induction piece made of a large number of magnetic materials on the inner wall surface of a conduit (including the surface of a plate disposed in the conduit), one end of which is exposed on the inner wall surface. By embedding so as to concentrate magnetic field lines on the induction piece, increase the magnetic field gradient in the vicinity of the induction piece, guide the floating solid to the induction piece, and effectively capture the inner wall embedded induction piece type A magnetic separator technology has been disclosed.

According to the inner wall buried guide piece type, a sufficiently high gradient magnetic field could be generated in the flow of the liquid to be treated in the conduit as in the case of the filter type.
Permanent magnets and superconducting solenoid coils may be used as magnets of different polarity arranged facing the outside of the conduit. However, when using bulk superconductor magnets, the magnetic flux density is much higher than permanent magnets. Compared to superconducting solenoid coils, the facility for capturing suspended solids was much greater, and the equipment could be greatly simplified, providing the advantage of being provided at low cost.

  In addition, there is no risk of clogging compared to trapping suspended solids using a filter, and frequent cleaning as in the case of a filter type is not necessary, and the reduction in operating rate due to interruption of processing work can be kept to a minimum. it can.

  However, in the case of the inner-wall-embedded guide piece type, floating solids adhere to the inner wall surface of the conduit, mainly in the vicinity of the buried guide piece, so it is not as frequent as in the case of the filter-type, but cleaning is required at a certain frequency. However, every time there is a problem that the operation rate is inevitably lowered due to the interruption of the processing work.

JP 2003-320272 A

  In order to solve the above problems, the object of the present invention is to capture suspended solids as efficiently as the filter type and the inner wall embedded guide piece type, and to perform frequent processing work as in the case of the filter type. It is an object of the present invention to provide a continuous magnetic separation device that does not require interruption and that does not require interruption of processing work even in comparison with the inner wall buried guide piece type. .

The continuous magnetic separation apparatus according to the present invention has been made in order to achieve the object of the suspended matter in the liquid to be treated, to aggregate by aggregating agent containing magnetic microparticles, after the aggregate solids having a magnetic in the magnetic separation device for separating by magnetic force the liquid to be treated or found before Symbol aggregate solids, has an opening upwardly, made of non-magnetic material, a conduit accommodate the liquid to be treated, across the front Symbol conduit heteropolar or such that identical poles face each other, and is located in a position below Ri by the water level of the liquid to be treated, the pair forming the horizontal direction of the magnetic field, or a plurality of pairs of magnets, a circular shape as a whole An adsorption plate comprising one or a plurality of magnetic bodies arranged and formed in a plate shape and a magnetic filter layer made of resin containing a plurality of magnetic filaments covering the periphery thereof, parallel to the magnetic field A rotating shaft, the rotating shaft The surface perpendicular to the surface forms an adsorption surface, and at least a part of the lower half of the adsorption surface is always immersed in the liquid to be treated to adsorb the floating solids while crossing the magnetic field, and at least the adsorption surface A part of the upper half is adsorbed by the adsorbing plate, which is rotatably arranged so as to be exposed to the upper outside of the conduit through the opening of the conduit while adsorbing the floating solids at all times. In order to scrape off the suspended solids, a scraper disposed on a part of the suction plate exposed to the outside of the conduit is included.

  Preferably, as described in claim 2, the pair or the plurality of pairs of magnets includes a magnetized superconducting bulk magnet, a permanent magnet, an electromagnet using an electromagnetic solenoid, or a magnet using a superconducting coil. It is characterized by being.

In addition, as described in claim 3, the magnetic filter layer is formed by applying, molding, and fixing a resin containing a plurality of magnetic filaments to the circular plate-like magnetic body, and at least half the length of the magnetic filaments. wherein the direction is flat line on the suction surface.

Further, as described in claim 4, the scraping portion is in contact with the suction surface of the suction plate or close to the suction surface of the suction plate by an interval necessary for scraping the condensed solid matter. The spatula or brush is stretched and fixed in the radial direction of the suction plate.
The interval is, for example, 5 mm or less.

In addition, as described in claim 5, the magnetic body of the suction plate includes a plurality of magnetic bodies that are arranged to be spaced apart from each other, and the suction surface of the suction plate is disposed in the gap between the plurality of magnetic bodies. a stopper having an equal correct height is embedded in the distance between the inner surface of the conduit, said stopper by a spring, is reciprocally movable in the direction perpendicular to the suction surface of the suction plate, is provided on the suction plate when the stopper is is in the position not located in the stripped-up portion, the stopper protrudes perpendicularly to the suction surface, wherein the stopper provided on the suction plate is disposed in the stripped-up portion when in it are location, the stopper is pushed by the stripped-up unit, characterized in that located in the portion Ri by suction surface of the suction plate.

In addition, as described in claim 6, the magnetic body of the attraction plate is composed of a plurality of magnetic bodies that are arranged to be spaced apart from each other, and in the gap between the plurality of magnetic bodies, the attraction surface of the attraction plate a stopper having an equal correct height is embedded in the distance between the inner surface of the conduit, said stopper by a spring, is rotated movably supported in the horizontal direction from a direction perpendicular to the suction surface of the suction plate, the when in position in which the stopper provided on the suction plate is not placed in the stripped-up portion, the stopper up stripped the said stopper provided on the vertically protrudes, the suction plate to the suction surface when in the deployed and are part of the section, the stopper is brought down while rotating by the stripped-up unit, characterized in that positioned in the same plane with respect to the suction surface of the suction plate.

Moreover, as described in claim 7, a portion of the conduit including at least the suspended solids recovery region is removable.

  According to the present invention, the suspended solids in the liquid to be treated are almost all adsorbed and adsorbed on the adsorption surface of the adsorption plate, not on the inner wall of the conduit, that is, where the magnetic flux density x magnetic flux density gradient is the largest. The suspended solids are scraped off by the scraping part as the adsorption plate rotates, and the adsorption plate is always immersed in the liquid to be treated in the state of no floating solids or almost no floating solids. Efficient continuous operation becomes possible.

  Embodiments according to the present invention will be specifically described below with reference to the drawings.

  In the magnetic separation apparatus according to the present invention, the substance in the liquid to be treated is previously separated as a suspended solid having magnetism by a flocculant containing magnetic fine particles, thereby separating (removing or collecting) the substance in the non-treatment liquid. Can be done effectively or efficiently.

Referring to FIG. 1, a continuous magnetic separation apparatus 100 according to the present invention includes a main container 10 and a conduit 20 connected to the main container 10, both of which are liquids to be treated 30 including suspended solids 32 up to a water level 35 indicated by a one-dot chain line. It is filled. A two-dot chain line 15 is a line indicating a connecting portion between the main container 10 and the conduit 20.
The conduit 20 is made of a non-magnetic material, and has an opening 22 above.

A pair of magnets 40 and 40 (only one of which is shown) having a substantially circular cross section are arranged so that the opposite poles face each other across the conduit 20 in the vicinity of the outer side wall of the conduit 20.
The pair of magnets 40, 40 is disposed at a position substantially below the water level 35 of the liquid 30 to be processed, and forms a horizontal magnetic field substantially perpendicular to the flow direction of the liquid to be processed in the conduit.

  In 1st Embodiment regarding a pair of magnet by this invention, a pair of magnets 40 and 40 are comprised with the magnet using the permanent magnet, the electromagnet using the electromagnetic solenoid, or the superconducting coil.

The magnetic field formed by these magnets generally has a substantially uniform magnetic flux density in the central portion and the peripheral portion except for the outer peripheral portion, and the value is 0.2 to 0.3 T (Tesla) for a permanent magnet, an electromagnetic solenoid or The magnet using a superconducting coil is about 2 Tesla. An example in the case of a permanent magnet is shown in FIG.
Thus, since the magnetic flux density is uniform, that is, the magnetic flux density gradient is small, the adsorbing ability of floating solids is not necessarily high.

In 2nd Embodiment regarding a pair of magnet by this invention, a pair of magnets 40 and 40 are comprised with a superconducting bulk magnet.
Although it depends on the cooling temperature, in a superconducting bulk magnet, 1.7 T (Tesla) (cooling temperature = 77 ° K; in the case of liquid nitrogen cooling) to 3 Tesla (cooling temperature = 35 ° K; in the case of refrigeration cooling) realizable. An example in the case of liquid nitrogen cooling is shown in FIG.

  In this way, the magnetic flux density generated in the superconducting bulk magnet is not uniform and is strongest in the central portion, so that a steep magnetic flux density gradient can be obtained with an integral magnet.

  Referring to FIG. 2, in the case of a superconducting bulk magnet, a pair of magnets 40 and 40 are accommodated in vacuum vessels 42 and 42, respectively, and vacuum ports 44 and 44 are connected to the vacuum vessels 42 and 42. The conductive bulk magnets 40, 40 are connected to refrigerators 46, 46, and helium pipes 48, 48 are connected to the refrigerators 46, 46. The helium pipes 48, 48 are connected to a helium compressor (not shown) for operation.

The vacuum port 44 and the helium pipe 48 are connected to a vacuum pump and a helium compressor (not shown), respectively, and the pair of magnets 40 and 40 are cooled to a predetermined temperature at a predetermined degree of vacuum, as shown in FIG. A magnetic field having such a shape (however, since it is refrigerator cooling, the peak value of the magnetic flux density B exceeds 3 Tesla instead of 1.7 Tesla).
In FIG. 1 and FIG. 2, the configuration requirements other than the configuration requirements 42 to 48 are common to all the embodiments.

  Referring to FIGS. 1 and 2 again, a substantially circular attracting plate 50 is disposed between a pair of magnets 40 and 40 so as to be able to rotate across the magnetic field formed by these magnets.

The rotating shaft 52 of the suction plate 50 is above the water level 35 and is rotated in the direction of the arrow 51 by a rotating power mechanism (not shown) including a motor 51a and a pulley 51b above the rotating shaft 52.
The pulley 51b can be replaced with a chain belt or the like. In any case, the suction plate 50 must be driven from above the rotating shaft when the extending direction of the rotating shaft 52 is blocked by the magnet system on both sides.
When the suction plate is rotated in this manner, the substantially lower half of the suction plate 50 is always immersed in the liquid to be treated, and the substantially upper half of the suction plate 50 is positioned above the conduit 20 through the opening 22 of the conduit 20.

  In the first embodiment relating to the suction plate according to the present invention, referring to FIGS. 4A and 4B, the suction plates 50 are arranged in close contact with each other so as to form a substantially circular plate as a whole. The magnetic filter layer 54 covering the periphery of the six fan-shaped magnetic bodies 53a is supported by the rotation shaft 52, and the surface perpendicular to the rotation shaft 52 of the magnetic filter layer 54 is the adsorption surface 55. Become.

In the second embodiment of the suction plate according to the present invention, referring to FIGS. 5A and 5B, the suction plate 50 is a plurality of pieces arranged and formed so as to have a substantially circular plate shape as a whole. The fan-shaped magnetic body 53b or the rectangular magnetic body 53c may be included, and the magnetic bodies 53b or 53c may not be in close contact with each other.
The shape and the mutual interval of these magnetic materials are selected so that the obtained adsorption ability is maximized as a whole.

In the embodiment relating to the magnetic filter layer forming the adsorption plate according to the present invention, referring to FIG. 6, it is a partial sectional view of the magnetic filter layer 54 forming the adsorption plate 50, and the magnetic filter layer 54 is composed of a plurality of magnetic filaments. For example, a filament 57 made of magnetic stainless steel SUS430, a resin 57 containing 56a and 56b is applied, molded and fixed to the magnetic body 53, and the length of the magnetic filaments 56a and 56b and the thickness of the resin 57 after molding and fixing are applied. The length is set so that at least half of the longitudinal directions of the magnetic filaments 56a and 56b are substantially parallel to the attracting surface.
The filament 56a is a case where the longitudinal direction coincides with the depth direction of the paper surface, and 56b is a case where the longitudinal direction is intermediate between the depth direction of the paper surface and the horizontal direction of the paper surface. I can see.

  When the suction plate 50 crosses the magnetic field, the suction capability (magnetic flux density × magnetic flux density gradient) is maximized at a portion corresponding to the central portion of the magnet on the suction plate as described above. The magnetic lines of force 58 are concentrated in the direction perpendicular to the longitudinal direction of the magnetic filament 56, that is, both the magnetic flux density and the magnetic flux density gradient increase, so microscopically, near the individual magnetic filaments 56a and 56b of the attracting surface 55. High adsorption capacity can be obtained.

  1 and 2, when the adsorption surface 55 of the adsorption plate 50 is immersed in the liquid to be treated and crosses the magnetic field, the floating solid substance 32 is adsorbed and united to form an adsorbate 34. As the plate 50 rotates, the adsorbate 34 is adsorbed and exposed to the upper outside of the conduit 20 through the opening 22 of the conduit 20.

  The scraping unit 60 is disposed in a portion of the adsorption plate 50 exposed to the outside of the conduit, near the water level 35 of the descending rotation portion, and scrapes the floating solid matter 34 adsorbed on the adsorption plate 50 to store the container. 69.

  In the first embodiment of the present invention related to the scraping portion, the scraping portion 60 is in contact with the suction surface 55 of the suction plate 50 as shown in FIG. 2, or as shown in FIG. It consists of a spatula or brush that is spaced apart from the suction surface by a predetermined distance and that is stretched and fixed to the lower side in the radial direction of the suction plate 50. The spacing when the spatula or brush is separated from the suction surface is 5 mm or less.

In the third embodiment relating to the suction plate according to the present invention, a suction plate 50 having a structure capable of more efficiently removing the floating solid material 34 is disclosed.
Referring to FIGS. 7A and 7B, the suction plate 50 includes a plurality of magnetic bodies 53d that are arranged to be spaced apart from each other, and a plurality of stopper portions 70 are provided in the gaps between the magnetic bodies 53d. .

  In the first embodiment relating to the stopper portion according to the present invention, referring to FIGS. 8A and 8B, the stopper portion 70 is embedded in the slit 71 and the slit 71 provided in the suction plate 50. A stopper 72 having a height substantially equal to the distance between the attracting surface 55 and the inner surface of the conduit 20 is included, and the stopper 72 is supported by a plurality of springs 73 fixed to a washer 74 formed integrally with the magnetic body 53d. ing.

When the suction plate 50 is located at a place other than the scraping portion 60, the stopper 72 protrudes perpendicularly to the suction surface 55 of the suction plate 50, and the floating solid material 34 (not shown) is interposed between the adjacent stoppers 72, 72. )).
When the suction plate 50 is in the scraping portion 60, the stopper 72 is pushed in the direction of the arrow along the guide 72 a by the spatula or brush that is the scraping portion 60, and is located in substantially the same plane of the suction surface 55. However, since it passes through the scraping part, the suspended solids are more efficiently adsorbed and collected.

  In the second embodiment of the stopper portion according to the present invention, referring to FIGS. 9A and 9B, a height substantially equal to the distance between the suction surface 55 and the inner surface of the conduit 20 embedded in the slit 71 is shown. The stopper 72 having a thickness is supported by a plurality of hinges 75 fixed to a washer 76 integrally formed with the magnetic body 53d.

When the suction plate 50 is located at a place other than the scraping portion 60, the stopper 72 is supported by a spring of the hinge 75 and protrudes vertically from the suction surface 55.
When the suction plate 50 is in the scraping part 60, the stopper 72 is tilted in the direction of the arrow while being rotated by the spatula or brush that is the scraping part 60, and is substantially the same as the suction surface 55 as indicated by a two-dot chain line. Since it is located in the plane, the suspended solids are more efficiently adsorbed and recovered.

  In the above description, the case where the pair of magnets 40 and 40 are opposite to each other has been described. However, there is a case where the floating solid matter 32 can be more effectively collected when the pair of magnets are opposite to each other. In this case, the magnetic flux density on the surface 55 of the suction plate 50 decreases, but the magnetic flux density gradient on the inner wall of the conduit 20 increases, and the floating solid matter 32 is effectively adsorbed on the inner wall of the conduit 20, and the scraping portion 60. It is because it can collect | recover by (the surface which touches the inner wall of the conduit | pipe 20 of the scraping part 60 more correctly).

  As described above, according to the present invention, a magnetic separation device capable of continuous operation without substantial interruption can be obtained. However, if the operation is continued for a long period of time, an uncut material of the adsorbate 34 is accumulated on the adsorption surface 55. In addition, although the adhering of the floating solid matter is little by little on the inner wall of the conduit 20, it accumulates and deteriorates the adsorption capacity as a whole, and therefore periodic cleaning maintenance is required.

  In this case, in the second embodiment of the present invention relating to the conduit, at least the suspended solids collection region of the conduit 20, that is, the entire conduit 20 is removable from the main container 10 with the connecting line 15 as a boundary in FIG. Therefore, cleaning maintenance of the suction plate 50 and the inner wall of the conduit 20 is easy.

  In the first embodiment described above, the adsorption plate 50 rotates upward on the side where the conduit 20 is connected to the main container 20, and the conduit 20 is closed on one side (right side in FIG. 1). There are various other modes.

  For example, the suction plate 50 is rotated in the reverse direction, a return path to the main container is provided with the conduit 20 as an open path, a pump is provided in the middle of the conduit 20 to forcibly circulate the liquid to be treated, or the return path In addition, another set of magnetic separation devices can be provided (in this case, the rotation directions of the suction plates are reversed to each other), and the efficiency of recovery of suspended solids can be realized.

  In addition, the collection efficiency can be increased by arranging a plurality of pairs of magnets in parallel or in series with the flow of the liquid 30 to be treated instead of the pair of magnets as described above.

  According to the present invention, a magnetic separation device capable of substantially continuous operation and having a high adsorption capability is obtained. From the viewpoint of purification of the liquid to be treated, chemical industry-related wastewater treatment, water and sewage treatment, rivers Expected to be used in many environment-related fields such as water management.

  In addition, from the viewpoint of recovery of useful resources, it can also be used in the environment-related fields as part of the process of recovering precious metals and other useful resources from intermediate products in mining and various industries such as metals and petroleum. I can expect.

(In FIGS. 4 to 8, FIGS. 4A, 5 A, 6, and 7 A are used to match the directions of the lines of sight, in which FIG. 1 is called an elevational view and FIG. 2 is a plan view. ), FIG. 8 (A) and FIG. 9 (A) are referred to as “plan views”, and FIG. 4 (B), FIG. 5 (B), FIG. 7 (A), FIG. 8 (A), and FIG. (It is called “elevation”, and it is the reverse of the usual name such as a single suction plate.)
1 is an elevational view of a continuous magnetic separator according to the present invention. It is a top view of the continuous magnetic separation apparatus which shows 2nd Embodiment regarding a pair of magnet by this invention. (A) is a figure which shows the example of the magnetic flux density distribution of a permanent magnet, (B) is a figure which shows the example of the magnetic flux density distribution of a superconducting bulk magnet. It is a figure which shows 1st Embodiment regarding the suction plate by this invention, (A) is a top view, (B) is an elevation view. It is a figure which shows 2nd Embodiment regarding the suction plate by this invention, (A) is a top view, (B) is an elevation view. It is a top sectional view showing the state of the magnetic field in the magnetic filter layer of the suction plate according to the present invention. It is a figure which shows 3rd Embodiment regarding the suction plate by this invention, (A) is a top view, (B) is an elevation view. It is a figure which shows 1st Embodiment regarding the stopper part of the adsorption | suction board by this invention, (A) is a top view of the cross section cut by XX of FIG. 7, (B) is an elevation view. It is a figure which shows 2nd Embodiment regarding the stopper part of the suction plate by this invention, (A) is a top view of the cross section cut by XX of FIG. 7, (B) is an elevation view.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Main container 15 Connecting line 20 Conduit 22 Opening part 30 Processed liquid 32 Floating solid substance 34 Adsorbed substance 35 Water level 40 Magnet 42 Vacuum container 44 Vacuum port 46 Refrigerating machine 48 Helium piping 50 Adsorption plate 51a Motor 51b Pulley 52 Rotating shaft 53, 53a, 53b, 53c Magnetic material 54 Magnetic filter layer 55 Adsorption surface 56a, 56b Magnetic filament 57 Resin 58 Magnetic field line 60 Cutting part 69 Reserving container 70 Stopper part 71 Slit 72 Stopper 72a Guide 73 Spring 74, 76 Washer 75 Hinge 100 Continuous magnetism Separation device

Claims (7)

The suspended solids in the liquid to be treated, to aggregate by aggregating agent containing magnetic microparticles, after the aggregate solids having a magnetic, magnetic separation device for separating by magnetic force the liquid to be treated or found before Symbol aggregate solids In
A conduit having an opening above, made of a non-magnetic material and containing the liquid to be treated;
It placed before Symbol As sandwiched therebetween unlike poles conduit, or that identical poles face each other, and the position of the lower Ri by the water level of the liquid to be treated, and a pair of forming a horizontal magnetic field, or a plurality of pairs of magnets ,
Overall, one or more magnetic bodies are arranged such that the circular shaped leaf shape is molded and, covering the periphery, there a magnetic filter layer or Ranaru adsorption plate made of a resin containing a plurality of magnetic filaments And
A rotation axis parallel to the magnetic field, a surface perpendicular to the rotation axis forms an adsorption surface, and at least a part of the lower half of the adsorption surface is always immersed in the liquid to be treated and crosses the magnetic field. While adsorbing the suspended solids, it can be rotated so that at least a part of the upper half of the adsorption surface is always exposed to the upper outside of the conduit through the opening of the conduit in a state of adsorbing the suspended solids. An adsorption plate arranged in
In order to scrape off the floating solid matter adsorbed on the adsorption plate, a scraping portion disposed on a part of the adsorption plate exposed to the outside of the conduit;
A continuous magnetic separation device comprising: The pair or plural pairs of magnets are composed of magnetized superconducting bulk magnets, permanent magnets, electromagnets using electromagnetic solenoids, or magnets using superconducting coils.
The continuous magnetic separator according to claim 1. The magnetic filter layer, applying a resin containing a plurality of magnetic filaments on the circular plate-shaped magnetic body molding, made by fixing the longitudinal direction of the magnetic filaments of at least half is flat row on the suction surface ,
The continuous magnetic separator according to claim 1. The scraping portion extends in the radial direction of the suction plate in contact with the suction surface of the suction plate or close to the suction surface of the suction plate by a distance necessary for scraping the condensed solid matter. A fixed spatula or brush,
The continuous magnetic separator according to claim 1. The magnetic body of the attraction plate is composed of a plurality of magnetic bodies that are arranged to be spaced apart from each other,
Wherein the gap between the plurality of magnetic stopper having equal correct height to the distance between the suction surface and the inner surface of the conduit of the suction plate is embedded,
The stopper is supported by a spring so as to be able to reciprocate in a direction perpendicular to the suction surface of the suction plate ,
Wherein when the said stopper provided on the suction plate is in the position not located in the stripped-up portion, the stopper protrudes perpendicularly to the suction surface,
Wherein when in the position in which said stopper provided on the suction plate is disposed in the stripped-up portion, the stopper is pushed by the stripped-up portion, positioned in the portion Ri by suction surface of the suction plate To
The continuous magnetic separator according to claim 1. The magnetic body of the attraction plate is composed of a plurality of magnetic bodies that are arranged to be spaced apart from each other,
Wherein the gap between the plurality of magnetic stopper having equal correct height to the distance between the suction surface and the inner surface of the conduit of the suction plate is embedded,
The stopper is supported by a spring so as to be rotatable in a horizontal direction from a direction perpendicular to the suction surface of the suction plate ,
Wherein when the said stopper provided on the suction plate is in the position not located in the stripped-up portion, the stopper protrudes perpendicularly to the suction surface,
When in position in which the stopper the provided suction plate is disposed in the stripped-up portion, the stopper is brought down while rotating by the stripped-up portion, in respect to the suction surface of the suction plate located in the same plane,
The continuous magnetic separator according to claim 1. A portion of the conduit including at least the suspended solids collection area is removable;
Characterized in that the continuous magnetic separation apparatus according to any one of claims 1, 5, and 6.

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