JP2021030185A - Filter for removing magnetic and nonmagnetic substances - Google Patents

Abstract

To provide a filter for removing magnetic and nonmagnetic substances by which magnetic substances such as ferromagnetic particulates and nonmagnetic substances such as aluminum, brass, and abrasive grain can be advantageously separated and removed from a liquid to be treated.SOLUTION: A removal filter 10 is configured so that: an inner funnel 16 is disposed in an outer funnel 14 installed to an inflow/outflow head 12; a magnet 24 is arranged in a magnet pipe 22 which is disposed so as to penetrate the bottom of the head 12 to extend in the outer funnel 14; the magnetic substance is adsorbed and separated from a liquid to be treated by the magnetic force of the magnet; a spiral flow heading for downward generates to the liquid to be treated by cyclone blades 26 installed on the periphery of the magnet pipe 22; and the magnetic and nonmagnetic substances in the liquid to be treated fall inside the inner funnel 16 so as to be separated while spirally moving downward in the outer funnel 14.SELECTED DRAWING: Figure 1

Description

The present invention relates to a magnetic substance / non-magnetic substance removing filter, and in particular, various liquids to be treated in which a magnetic substance such as iron and a non-magnetic substance such as aluminum are mixed together or separately. It relates to a filter device capable of effectively separating and removing these two kinds of contaminants from the inside.

Conventionally, devices and devices having a structure in which liquids such as lubricating oil and hydraulic oil circulate inside, such as engines, transmissions, and various hydraulic systems, have been used for various purposes. In those devices and equipment, the surface of metal parts gradually wears during their use, so that the metal powder particles generated by the wear of the surface of such metal parts circulate inside. It is inevitably mixed in the liquid and becomes suspended. Then, the metal powder or granular material in the liquid further promotes wear on the surface of the metal part. Also, in machine tools such as honing machines and grinding machines, grinding is performed while supplying coolant such as grinding fluid and cutting fluid stored in the supply tank to the workpieces placed in the machining section. However, metal particles such as fine metal powder, metal abrasive grains, and metal chips (chips) of the ground work will be mixed in the coolant collected from the processed part. It is difficult to reuse the coolant mixed with metal particles as it is.

Therefore, in the above-mentioned engines, transmissions, hydraulic systems, etc., the metal parts to be worn are made of a ferromagnetic material such as iron or a non-magnetic material such as aluminum, and in a machine tool, iron or the like. Since the work piece made of a ferromagnet or a non-magnetic material such as aluminum is ground, the used lubricating oil, hydraulic oil, coolant, etc. may be such a ferromagnet. Non-magnetic powders and granules will be mixed in, so the liquids will be filtered by a filter device placed in the middle of the piping path of the liquids, and the fine particles mixed in the liquids will be separated, collected and removed. Such a configuration is adopted, and various structures have been proposed as a filter device for that purpose.

Then, a magnetic filter device that uses magnetic energy, which is one of such filter devices, to adsorb and separate (filter) ferromagnetic powder particles (metal powder particles) mixed in a liquid. However, compared to a filter device using a conventional filtration type filter, clogging is less likely to occur, so that the filter does not need to be regularly cleaned or replaced, and running costs can be reduced. It is attracting attention as a filter device.

For example, in Japanese Patent Application Laid-Open No. 5-2713 and Japanese Patent Application Laid-Open No. 2011-11205, a permanent magnet is arranged outside the passage through which the liquid to be treated is circulated, and the magnetic force of the permanent magnet causes the inside of the passage to be moved. A magnet filter that magnetically separates ferromagnetic powders and granules from the liquid to be processed that is distributed, or a magnetic filter device that is also called a magnetic in-line filter has been proposed, in which a magnet is used to attract and remove the particles to be processed. Then, in order to take out the ferromagnetic powder particles trapped in the passage from the passage, the magnet is moved along the passage and positioned at a magnetic blocking portion where the magnetic force of the magnet does not act. A structure is adopted in which the attracting action of the magnet is eliminated and the liquid to be treated is discharged together. However, since all of these magnetic filter devices magnetically separate ferromagnetic powders and granules from the liquid to be treated, non-magnetic substances that are difficult to magnetically separate are separated and removed from the liquid to be treated. There is an inherent problem that it cannot be done.

Further, in Japanese Patent Application Laid-Open No. 2015-178508, in order to separate fine substances in a fluid by centrifugal force and clean and purify the fluid, a fluid containing the fine substances is supplied into the main body container to form a swirl. It is generated, and the fine matter is moved to the outside by centrifugal force to separate it, and the separated fine matter is settled so that it is discharged from the lower part of the main body container to the outside, while the fluid is discharged to the upper part in the main body container. A centrifuge having a structure in which an outlet is provided so that the fluid in the main body container is filtered by a filtration member and then discharged to the outside through such a fluid outlet has been proposed. However, in such a centrifuge, in addition to the need to dispose a predetermined filtration member in the container body, all the fluid in the container body is allowed to pass through the filtration member to the outside. Since it is likely to flow out to the filter member, problems such as clogging due to fine particles of the filtration member, particularly small particles floating in the fluid, are likely to occur, and there is a big problem in its durability. there were.

Further, in Japanese Patent Application Laid-Open No. 2005-28244, as a filter device for separating magnetic fine substances in a fluid by utilizing centrifugal force and magnetic force, a fluid containing fine substances is supplied to cause a swirl. A filter unit that is generated and moves the fine substance to the outside in a centrifugal state to separate the fine substance and a precipitation portion that precipitates the fine substance that is precipitated by the filter portion are arranged vertically and vertically, and the precipitation portion is formed. A magnet unit is provided on the outer peripheral portion of the above, and a structure has been proposed in which a magnetic force that attracts fine objects in the direction of the settling portion is applied. In addition, in Japanese Patent Application Laid-Open No. 2009-297676, as a foreign matter particle separating device provided with a cyclone-type processing container that separates foreign matter particles by using centrifugal force, an upper inverted conical portion and a lower side are provided in the processing container. A fluid to be processed containing foreign matter particles is allowed to flow into the upper reverse conical part in connection with the inverted conical part to swirl and flow, so that the foreign matter particles are separated by centrifugal force, while the lower reverse side. A structure was clarified in which a magnet member was provided in the conical part so that the magnetic particles in the fluid to be treated were magnetically separated by the magnetic attraction force, where the levitation with a light specific gravity where centrifugal force was hard to act. In order to separate objects, a floating object recovery tank is provided above the upper inverted conical portion via a partition plate having a slit-shaped hole so that floating objects having a light specific gravity can be separated and stored in the recovery tank. The structure has been clarified.

However, the proposed filter device and foreign matter particle separating device basically have the purpose of magnetically separating magnetic fine particles and foreign matter particles, and are non-magnetic fine particles. In addition to being not very effective in separating and removing foreign particles and foreign particles, magnetic fine particles and magnetic particles can be found from the fact that the outlet of the fluid is opened in the center of the vortex of the fluid formed in the device. There is a problem that the foreign particles are further refined and the fine particles suspended in the fluid are easily discharged to the outside through the outlet without being magnetically separated, and therefore, they are mixed in the fluid. There is an inherent problem that the separation effect of magnetic fine particles and foreign particles is not sufficient.

However, in the foreign matter particle separating device disclosed in Japanese Patent Application Laid-Open No. 2009-297676, it is certain that a floating substance having a light specific gravity on which centrifugal force does not easily act, for example, an oil component, suspended dust, suspended carbon, foreign matter particles having a light specific gravity, etc. A floating material recovery tank is provided above the upper inverted conical part for proper separation and removal, but it is intended to remove floating materials that float on the surface of the fluid to be treated due to the difference in specific gravity. It is effective in separating and removing fine non-magnetic particles floating in the fluid to be treated and having a specific gravity equal to or greater than the specific gravity of the fluid to be treated (liquid). It was not something that could be done.

In particular, the liquids to be treated such as used lubricating oils, hydraulic oils, and coolants that require purification include magnetic substances composed of ferromagnetic powders such as iron, cobalt, and nickel. Depending on the material of the workpiece or machine, non-magnetic substances such as aluminum, copper, brass, and abrasive grains (ceramics) that have fallen off from the grindstone will also be mixed in, and those magnetic substances and Liquids to be treated containing both non-magnetic substances and various liquids to be treated containing them separately are supplied to purify those fluids. In that case, the above-mentioned The various known filter devices described above could not advantageously separate and remove both the magnetic substance and the non-magnetic substance.

Jikkenhei No. 5-2713 Japanese Unexamined Patent Publication No. 2011-11205 Japanese Unexamined Patent Publication No. 2015-178058 Japanese Unexamined Patent Publication No. 2005-28244 JP-A-2009-297676

Here, the present invention has been made in the background of the above-mentioned circumstances, and the solution to the present invention is to effectively utilize the centrifugal separation action and the magnetic separation action to be a liquid to be treated. A filter for removing magnetic substances and non-magnetic substances that can advantageously separate and remove magnetic substances such as ferromagnetic powders such as iron and non-magnetic substances such as aluminum, brass, and abrasive grains. Is to provide.

Then, in order to solve the above-mentioned problems, the present invention can be preferably carried out in various aspects as listed below, but each aspect described below can be performed in any combination. , Can be adopted. It should be noted that the aspects or technical features of the present invention are not limited to those described below, and can be recognized based on the invention idea disclosed in the description of the entire specification and the drawings. , Should be understood.

Therefore, in the present invention, first, in order to solve the above-mentioned problems, (a) an inflow port for inflowing a liquid to be treated in which a magnetic substance and a non-magnetic substance are mixed together or separately, and them. An inflow that has an outlet for separating and removing magnetic and non-magnetic substances and allowing the purified liquid to be treated to flow out, so that the liquid to be treated that flows in from the inlet is guided downward. It consists of an outlet head and (b) a conical trapezoidal cylinder that shrinks downward, and is attached to the lower part of the inflow / outhead at the large-diameter upper end opening of the cylinder, and inside the cylinder. The magnetic substance and the non-magnetic substance are separated and removed from the liquid to be treated led from the inflow and outflow head, while the liquid to be treated purified by such separation and removal is sent to the inflow port of the inflow and outflow head. It consists of an outer funnel to be guided and (c) a conical trapezoidal cylinder that is smaller than the cylinder that constitutes the outer funnel and has a downwardly reduced diameter, and is housed in the outer funnel and has a large diameter upper end. At the opening portion, the magnetic substance or non-magnetic substance separated and removed from the liquid to be treated is lowered by gravity from the lower end opening having a small diameter while being fixed to the inner surface of the middle portion of the outer funnel. An inner magnet that is integrated in the lower part of the outer funnel, and (d) a bottomed cylinder that penetrates the inflow / outflow head in the vertical direction and extends downward in the outer funnel, and the lower end is closed. A magnet pipe having a shape and (e) a cover that is movably arranged in the magnet pipe in the vertical direction and flows in the outer funnel via the magnet pipe by the downward movement arrangement in the magnet pipe. By applying a predetermined magnetic field to the processing liquid, the magnetic substance in the liquid to be processed is attracted to the outer peripheral surface of the magnet pipe and magnetically separated, while the action of the magnetic field is selected by moving upward. A magnet means for detaching and dropping a magnetic material adsorbed on the outer peripheral surface of the magnet pipe and causing it to be lowered into the inner funnel by gravity, and (f) a plurality of blades are provided. The plurality of blades are rotatably attached to the outer peripheral surface of the magnet pipe, and the plurality of blades are rotated by the downward flow of the liquid to be processed guided from the inflow / outflow head, whereby the liquid to be processed becomes the liquid to be processed. The magnetic material or non-magnetic material in the liquid to be treated is moved downward while inducing a swirling flow downward and swirling and moving in the outer funnel. The cyclone means for lowering into the inner funnel and (g) the magnetic substance or non-magnetic substance which is connected to the lower end opening portion of the outer funnel and descends from the lower end opening of the inner funnel and is accumulated are the outer funnel. A removable collection container that is made to flow in from the lower part of the body by gravity, and (h) is arranged on a communication passage that connects the outer funnel and the collection container, and the communication passage is opened and closed by the opening operation. A magnetic substance / non-magnetic substance removing filter characterized by having a valve means for allowing the magnetic substance or the non-magnetic substance to flow into the collection container. It is a summary.

According to one of the preferred embodiments of the magnetic substance / non-magnetic substance removing filter according to the present invention, the subject is connected to the inflow port and is allowed to flow in from the inflow port in the inflow / outflow head. A liquid guide path that guides the treatment liquid downward is formed so as to extend downward from the upper part of the inflow / outflow head.

Further, according to another preferred embodiment of such a magnetic substance / non-magnetic substance removing filter according to the present invention, the liquid guide path includes a horizontal portion extending in the horizontal direction from the inflow port and the horizontal portion. It has a vertical portion extending downward in the vertical direction from the portion, and is formed in a form having an L-shape by the horizontal portion and the vertical portion.

Further, according to one of the other preferred embodiments of the filter according to the present invention, an opening provided at the lower end of the vertical portion where the discharge port of the liquid to be processed opens obliquely downward and outward. The liquid to be processed is discharged from the opening toward the inner surface of the outer funnel.

According to another one of the desirable aspects of the magnetic substance / non-magnetic substance removal filter according to the present invention, the magnet pipe is located outward from the magnet pipe so as to be located below the cyclone means mounting position of the magnet pipe. A wiper member that protrudes and extends over the entire circumference of the magnet pipe is arranged on the outer peripheral portion of the magnet pipe. Due to the presence of this wiper member, when the magnet means rises in the magnet pipe, the magnetic substance magnetically attached to the magnet pipe is prevented from moving upward and has an action of scraping off the magnetized material. The magnetic material can be easily dropped downward.

Further, according to one of the desirable alternative aspects of the removal filter according to the present invention, a moving rod having an operating portion located outward from the upper opening of the magnet pipe is attached to the magnet means to perform such an operation. By raising and lowering the portion, the magnet means can be moved in the vertical direction in the magnet pipe. By moving the magnet means in the vertical direction by such a moving rod, the magnet means is placed at the position where the magnetic material is magnetically attached to the outer surface of the magnet pipe in the outer funnel, and the magnet means is magnetized on the outer surface of the magnet pipe. The downward removal of the magnetic material can be easily and easily performed by raising the magnet means.

Further, in the present invention, preferably, the moving rod is configured to be bendable in an intermediate portion in the longitudinal direction thereof, and the bendable portion of the magnet pipe is formed by raising the moving rod. The position of the magnet means in the magnet pipe can be fixedly held by being bent in a state of protruding outward from the upper end opening. Thereby, the magnet means having a strong magnetic force can be effectively held in the magnet pipe, and the occurrence of the unexpected problem caused by taking out such a magnet means can be advantageously avoided. It becomes.

According to such a magnetic substance / non-magnetic substance removing filter according to the present invention, the centrifugal force action due to the effective swirling flow and the effective magnetic attachment action by the magnetic means are utilized in the fluid to be treated. Various magnetic substances and non-magnetic substances mixed in can be advantageously separated and removed, so that the degree of purification of the liquid to be treated can be further improved and the liquid to be treated can be reused. It will be possible to plan effectively.

It is sectional drawing of the main part which shows the typical embodiment of the magnetic substance substance / non-magnetic substance substance removal filter according to this invention in the form which is divided at the connection part between an outer funnel and a ball valve. FIG. 5 is an enlarged cross-sectional explanatory view showing an inflow / outflow head and a magnet pipe taken out in the removal filter shown in FIG. FIG. 5 is a front explanatory view showing an outer funnel used in the removal filter shown in FIG. 1 in a form in which an inner funnel is arranged inside the outer funnel. It is explanatory drawing of the funnel body used for the outer funnel shown in FIG. 3, (a) is the plane form explanatory view, (b) is the AA cross-sectional explanatory view in (a). .. It is explanatory drawing which shows the inner funnel used for the removal filter shown in FIG. 1, (a) is the plane form explanatory view, (b) is the BB cross-sectional explanatory view in (a). is there. It is explanatory drawing of the cyclone blade used for the removal filter shown in FIG. 1, (a) is the plan view explanatory view, (b) is the enlarged perspective explanatory view. It is explanatory drawing of the wiper used for the removal filter shown in FIG. 1, (a) is the plane form explanatory view, (b) is the CC cross-sectional explanatory view in (a). .. It is an enlarged front view which shows an example of the moving rod used for the removal filter shown in FIG.

Hereinafter, in order to clarify the configuration of the present invention more concretely, a typical embodiment of the present invention will be described in detail with reference to the drawings.

First, FIG. 1 shows purification of various coolants mixed with a magnetic substance such as iron or a non-magnetic substance such as aluminum as an embodiment of a magnetic substance / non-magnetic substance removal filter having a structure according to the present invention. The cross section of the main part of the removal filter for performing the above is shown in the form of being divided at the connection portion between the outer funnel and the ball valve. Here, the removal filter 10 according to the present embodiment is arranged in an inflow / out head 12 having a bottomed cylindrical shape having a bottom portion, an outer funnel 14 attached to the lower opening thereof, and the outer funnel 14. An inner funnel 16 provided, a magnet pipe 22 arranged so as to penetrate the bottom of the inflow / outflow head 12 and extend into the outer funnel 14, a magnet 24 arranged in the magnet pipe 22, and such a magnet pipe 22. A collection container 20 in which a cyclone blade 26 and a wiper 28 rotatably attached to the outer peripheral portion of the outer funnel 14 and a lower end portion of the outer funnel 14 are connected via a ball valve 18 as a valve means. It is configured.

Specifically, as shown in an enlarged view of FIG. 2, the inflow / outflow head 12 has a bottomed cylindrical shape in which the upper portion of a thick tubular portion is closed to form a bottom portion, such as SUS304. Inflow port 12a into which a liquid to be treated mixed with a magnetic substance or a non-magnetic substance is allowed to flow into the opposite positions of the thick cylinder wall portion, and a purified object to be treated. An outflow port 12b through which the liquid flows out is provided. An inflow pipe (not shown), which constitutes a part of the pipe in the coolant purification system, is connected to the inflow port 12a by screwing to form a magnetic substance composed of ferromagnetic powder particles such as iron powder. A coolant in which a non-magnetic substance such as aluminum is mixed, a coolant in which a magnetic substance is mixed, and a coolant in which a non-magnetic substance is mixed can be arbitrarily flowed in as a liquid to be treated. There is. On the other hand, an outflow pipe (not shown), which constitutes a part of the piping of the purification system, is connected to the outlet 12b by screwing, and the magnetic substance and the non-magnetic substance are separated and removed by the removal filter 10. The coolant (the liquid to be purified) is allowed to flow out from the removal filter 10.

Then, an L-shaped pipe 30 made of the same material as the inflow / outhead 12 is fixed to the inner opening of the inflow port 12a by welding at the opening end of the inflow / outhead 12. On the other hand, the portion on the other side of the opening end is arranged so as to extend downward. Moreover, as is clear from the figure, the other opening end portion provided at the portion extending downward is configured as a discharge port 30a formed of an opening that opens diagonally downward and outward. As shown in FIG. 1, the liquid to be treated is discharged from the opening (30a) toward the inner surface of the outer funnel 14. With such an L-shaped tube 30, here, a horizontal portion extending in the horizontal direction from the inflow port 12a and a vertical portion extending in the vertical direction downward from the horizontal portion are provided, and the whole is formed by the horizontal portion and the vertical portion. A liquid guideway that exhibits an L-shape is constructed.

Further, the central portion of the bottom portion of the inflow / outflow head 12 is made of a material such as SUS304, which penetrates in the vertical direction and is located so as to extend downward in the outer funnel 14 and has a closed lower end. The magnet pipe 22 is screwed and fixed at the upper end opening thereof. Two accommodating grooves 22a and 22a extending in the circumferential direction are provided at a portion of the magnet pipe 22 located in the outer funnel 14 at predetermined intervals, and as shown in FIG. 1, these accommodating grooves 22a and 22a are provided. By fitting the snap rings 32 and 32 into the grooves 22a and 22a, respectively, a cyclone blade 26 and a wiper 28, which will be described later, are attached to the grooves 22a and 22a so as to be freely rotatable.

Further, as shown in FIG. 3, an outer funnel 14 is attached to the lower opening of the inflow / outflow head 12. As shown in FIGS. 4A and 4B, the outer funnel 14 has a funnel body 14a made of a material such as SUS304, which is composed of a truncated cone-shaped cylinder whose diameter is reduced downward. As shown in FIG. 3, a cylindrical funnel upper flange 14b is welded to the upper opening on the large diameter side of the funnel body 14a, while a cylinder is formed on the lower end opening on the small diameter side. A shaped Rohto nipple 14c is welded. Then, the outer funnel 14 is liquid-tightly attached to the lower opening of the inflow / outflow head 12 via the O-ring 36 by tightening with the ring nut 34 on the funnel upper flange 14b, as shown in FIG. On the other hand, the funnel nipple 14c is connected to the ball valve 18 which is a valve means by screwing.

In addition, in the funnel body 14a of the outer funnel 14, there is an inner funnel 16 made of a material such as SUS304, which is composed of a truncated cone-shaped cylinder whose diameter is reduced downward so as to be located at the central portion in the axial direction thereof. , Are arranged. As is clear from FIGS. 5A and 5B, the inner funnel 16 is smaller than the funnel body 14a, which is a tubular body constituting the outer funnel 14, in other words, the maximum diameter is somewhat smaller than the maximum inner diameter of the funnel body 14a. It has an outer diameter, so that when the inner funnel 16 is inserted into the funnel body 14a of the outer funnel 14 from the opening end on the smaller diameter side, the inner funnel 16 enters the funnel body 14a by a predetermined distance. Then, in a state where the maximum outer peripheral portion of the inner funnel 16 is in contact with the inner peripheral surface of the funnel main body 14a and further entry is prevented, the contact portions are welded and fixed to form the inner funnel 16. It is fixedly arranged in the funnel body 14a. Then, by arranging the inner funnel 16 in the funnel main body 14a, as shown in FIG. 1, the lower end portion of the magnet pipe 22 is configured to be positioned so as to enter into the inner funnel 16. It is.

By arranging the inner funnel 16 in the outer funnel 14 in this way, the inner funnel 14, specifically, the funnel body 14a is located in the upper space above the inner funnel 16 and below the inner funnel 16. It will be divided into the lower space. There, the magnetic or non-magnetic material that descends in the liquid to be treated in such an upper space enters the inner funnel 16 and further descends from the small diameter lower end opening of the inner funnel 16 to the funnel. It will be integrated in the lower space of the main body 14a. Moreover, the inner funnel 16 has a small-diameter opening in which the lower end opening is narrowed down, and the magnetic or non-magnetic material that descends downward through such a small-diameter opening is the outer funnel 14. It is hardly affected by the flow of the liquid to be treated in the upper space of the funnel, so that it is not soared again and drawn into the inner funnel 16 and effectively into the lower space of the funnel body 14a. , Will be accumulated.

Then, in the present invention, as described above, on the outer peripheral surface of the magnet pipe 22 which penetrates the bottom of the inflow / outflow head 12 and extends downward so as to enter the inner funnel 16 arranged in the outer funnel 14. , The cyclone blade 26 and the wiper 28 made of an appropriate material such as resin are arranged vertically and are attached in a form in which the movement in the vertical direction is prevented by the two snap rings 32 and 32 above and below. -ing There, as shown in FIGS. 6A to 6B, the cyclone blade 26 has a mounting ring 40 externally inserted into the magnet pipe 22 and radially laterally (diameterally outward) from the mounting ring 40. ) Eight blades 42, which extend and are provided with a predetermined phase difference in the circumferential direction, are integrally provided. As is clear from FIG. 6A, each of the blades 42 is curved downward as shown in FIG. 6B while forming a predetermined gap with the mounting ring 40. It has a blade body with a shape.

Therefore, as shown in FIG. 1, the downwardly curved upper surface of the eight blades 42 of the cyclone blade 26 is hit by the flow of the liquid to be treated, which is guided downward by the L-shaped tube 30, thereby causing the cyclone. The blade 26 rotates, whereby the liquid to be treated becomes a swirling flow and is guided downward along the inner peripheral surface of the outer funnel 14, and accordingly, a magnetic substance having a large specific gravity in the liquid to be treated or a non-material to be treated. The particles of the magnetic material are effectively lowered by gravity, further lowered in the inner funnel 16, guided further downward from the lower end opening having a small diameter, and accumulated in the lower space of the outer funnel 14. You will be urged. Further, such a swirling flow of the liquid to be treated becomes an upward flow from the inner funnel 16 and is guided upward through a portion on the central portion side of the outer funnel 14 so as to flow out from the outflow port 12b to the outside. It has become. It should be noted that the mixed particles suspended by the upward flow of the fluid to be treated are subjected to the cyclone action as described above again by the rotating cyclone blade 40 so as to be lowered in the outer funnel 14. It becomes.

Further, as shown in FIG. 7, the wiper 28 arranged so as to be located below the cyclone blade 26 has a mounting ring portion 28a externally inserted into the magnet pipe 22 and a radial outward from the lower end portion thereof. The wiper 28 is integrally formed of a downwardly inclined ring plate-shaped umbrella portion 28b that protrudes and extends over the entire circumference, and the wiper 28 is a magnet as shown in FIG. It is arranged so as to be located above the magnet 24 housed in the pipe 22.

Then, in the magnet pipe 22, a cylindrical magnet (permanent magnet) 24 made of a strong magnet such as a neodymium magnet is arranged so that the magnet pipe 22 can be moved in the vertical direction, as shown in FIG. By being moved downward and arranged so as to be located on the bottom of the lower portion of the magnet pipe 22, a predetermined magnetic field is applied to the liquid to be processed flowing in the outer funnel 14 via the magnet pipe 22. Therefore, the magnetic substance in the liquid to be treated is attracted to the outer peripheral surface of the magnet pipe 22 so that it can be magnetically separated. The magnet 24 has a structure in which cylindrical pieces divided by a plurality of (four in this case) dividing surfaces extending in the axial direction are magnetized and integrated with each other to be assembled into a cylindrical shape. Here, as shown in FIG. 8, a plurality of cylindrical pieces of the magnets 44 are magnetized around the lower portion of the moving rod 44 as shown in FIG. 8, so that the magnets 24 are magnetized as shown in FIG. , The moving rod 44 is attached. Then, the magnet 24 is moved upward by the pulling operation using the operation handle 46 attached to the upper end portion of the moving rod 44, so that the action of the magnetic field on the liquid to be processed via the magnet pipe 22 is selective. Therefore, the magnetic substance adsorbed on the outer peripheral surface of the magnet pipe 22 can be separated and dropped.

By the way, as is clear from FIG. 8, the moving rod 44 is configured to be bendable in the intermediate portion in the longitudinal direction thereof, and here, the upper rod portion 44a and the lower rod portion 44b are connected by a pin 48. The upper rod portion 44a and the lower rod portion 44b can be bent by being rotated around the pin 48. Further, such a moving rod 44 is configured to have a length such that the upper rod portion 44a thereof can protrude from the upper opening of the magnet pipe 22, and the moving rod 44 is pulled up by using the operating handle 46 which is an operating portion. , In a state where the pin 48 arrangement portion is exposed from the upper opening of the magnet pipe 22, by rotating around the pin 48, it can be bent into an L shape and locked with respect to the inflow / outflow head 12. It has become. At that time, the magnet 24 is magnetized on the inner surface of the magnet pipe 22 in a state where the magnet 24 is positioned above the wiper 28.

The outer funnel 14 is screwed into the upper opening of the ball valve 18 by the funnel nipple 14c provided at the lower portion thereof, while the nipple 50 is screwed to the lower opening of the ball valve 18 as shown in FIG. A collection container 20 is attached via the nipple. There, the ball valve 18 is an on-off valve having a known structure, and can communicate or block the communication passage between the outer funnel 14 and the collection container 20 by rotating the handle 18a. Further, the collection container 20 has a structure in which a lid member 54 is liquid-tightly fastened to the upper opening of the container body 52 by a ring nut 58 via an O-ring 56. Moreover, a thick cylindrical portion 54a extending downward is integrally provided on the inner surface of the lid member 54, and due to the presence of the thick cylindrical portion 54a, the ball valve 18 is connected to the collection container 20. Even if the liquid to be treated is present in the continuous passage, when the container body 52 is removed from the lid member 54, the problem that the liquid to be treated overflows from the container body 52 is not caused. It has become.

Therefore, in the removal filter 10 having the above-described configuration, the liquid to be treated, which is guided from the inflow port 12a of the inflow chamber head 12 and can be mixed with or separately from the magnetic substance and the non-magnetic substance, is L-shaped. The downward flow in the tube 30 causes the cyclone blade 26 to rotate, causing the liquid to be treated to descend along the inner surface of the outer rotor 16 as a downward swirling flow. Particles of magnetic or non-magnetic substances having a specific gravity larger than that of the liquid to be treated are effectively lowered by centrifugal force or the cyclone effect and guided into the inner funnel 16, and further, the small diameter of the inner funnel 16 From the lower end opening, magnetic and non-magnetic substances separated from the flow of the liquid to be treated are lowered by gravity and accumulated in the lower space below the inner funnel 16 of the outer funnel 14. It becomes.

By the way, the downward flow of the liquid to be treated gradually reverses and becomes an upward flow on the central side of the outer funnel 14, and flows in and out through the outside of the wiper 28 and the gap of the cyclone blade 26. The magnet pipe 22 reaches the outlet 12b of the head 12 and is allowed to flow out from there. The magnet pipe 22 is arranged so as to be located at the center of the outer rotor 14 with respect to such a flow of the liquid to be treated. Further, a magnet 24 is arranged inside the magnet pipe 22 so that a predetermined magnetic field is applied to the liquid to be treated. Therefore, a magnetic material mixed in the liquid to be treated. The substance is attracted to the outer peripheral surface of the magnet pipe 22 and is effectively magnetically separated from the liquid to be treated. Moreover, at that time, in particular, the fine magnetic substance suspended in the liquid to be treated guided to the outflow port 12b can also be advantageously magnetized on the outer peripheral surface of the magnet pipe 22, so that the inflow / outflow head Even fine magnetic substances can be effectively separated and removed from the outlet 12b of 12, and the liquid to be treated having a higher degree of purification can be advantageously discharged.

Then, due to the swirling flow of the liquid to be treated and the action of gravity induced in the outer funnel 14, the magnetic substance and the non-magnetic substance descending in the liquid to be treated reach the inner funnel 16 and further descend in the inner funnel 16. Then, it is introduced into the lower space of the outer funnel 14 from the lower end opening having a small diameter, and is accumulated there. In the lower space of the outer funnel 14 where these magnetic substances and non-magnetic substances are accumulated, the swirling flow of the liquid to be treated induced in the upper part of the outer funnel 14 can almost act due to the presence of the inner funnel 16. Therefore, there is no possibility that the lowered magnetic substance or non-magnetic substance will fly upward from the small-diameter lower end opening of the inner funnel 16 and be mixed again in the liquid to be purified.

On the other hand, the magnetic substance magnetically separated from the liquid to be treated by being attracted to the outer peripheral surface of the magnet pipe 22 by the action of the magnetic field by the magnet 24 arranged in the magnet pipe 22 is as follows. It will be lowered into the lower space of the outer funnel 14. That is, first, the magnet 24 is moved upward by the pulling operation by the moving rod 44 to which the magnet 24 is attached, and is arranged above the cyclone blade 26, whereby the magnetic substance with respect to the outer peripheral surface of the magnet pipe 22. The adsorption action of the substance is released, so that the magnetic substance adsorbed there is lowered by gravity so that the inner funnel 16 can be accommodated in the lower space of the outer funnel 14. .. In addition, as the magnet 24 is lifted, the magnetic substance adsorbed on the outer peripheral surface of the magnet pipe 22 is also pulled upward, but here, the wiper 28 is placed below the cyclone blade 26. Is arranged, the wiper 28 is used to scrape off such a magnetic substance, and by blocking the action of the magnetic field of the magnet 24, it is attracted to the outer peripheral surface of the magnet pipe 22. It is now possible to easily release the adsorption and lowering of the magnetic substance. Further, in the operation of separating and removing the magnetic substance adsorbed on the magnet pipe 22, preferably, the inflow of the liquid to be processed into the removal filter 10 is interrupted, and the removal operation is temporarily stopped. It becomes.

When the magnetic substance or non-magnetic substance accumulated in the lower space of the outer funnel 14 is taken out of the outer funnel 14 in this way, the ball valve 18 is connected via the funnel nipple 14c under the outer funnel 14. By operating the handle 18a to open the magnetic substance and the non-magnetic substance, the magnetic substance and the non-magnetic substance are lowered by gravity into the collection container 20 attached to the lower part of the ball valve 18 and accommodated. .. Of course, during the separation and removal work of the magnetic substance and the non-magnetic substance from the liquid to be treated in the outer funnel 14, the ball valve 18 is always kept in the open operating state, and the outer funnel 14 and the collection container 20 are always in the communicating state. By doing so, it is also possible to sequentially lower the magnetic substance and the non-magnetic substance separated and removed from the lower space of the outer funnel 14 into the collection container 20.

Further, at the stage where a predetermined amount of magnetic material or non-magnetic material is contained in the collection container 20, the handle 18a of the ball valve 18 is operated to close the ball valve 18 and the outer funnel 14 is used. After blocking the communication with the container body 52, the ring nut 58 is loosened and the container body 52 is detached from the lid member 54, so that the magnetic material and the non-magnetic material lowered in the container body 52 are taken out to the outside. It can be discarded. As described above, instead of detaching only the container body 52, it is also possible to remove the entire collection container 20 from the ball valve 18 by screwing the lid member 54 from the nipple 50. .. Further, in the removal operation of the collection container 20, the container body 52 is preferably made of a transparent resin so that the amount of the magnetic substance and the non-magnetic substance contained in the container body 52 can be easily grasped. It will be configured.

The configuration and modifications thereof have been described in detail based on the typical embodiments of the present invention, but these are merely examples, and the present invention describes such embodiments and modifications. It should be understood that the specific description of the above does not imply any limited interpretation.

For example, as the permanent magnet used as the magnet 24, a rare earth magnet having a strong magnetic force such as a neodymium magnet can be preferably used, but the present invention is not limited to this, and various known permanent magnets can be used. It can be used.

Further, in the exemplary embodiment, an L-shaped pipe 30 is arranged in the inner opening of the inflow port 12a in order to form a downward flow of the liquid to be processed that is made to flow in from the inflow port 12a of the inflow / outflow head 12. Although it is provided, it is also possible to provide a through hole at the bottom of the upper part of the inflow / outflow head 12 so that the liquid to be processed can flow downward from the through hole. Yes, and at that time, it is located below such an outlet 12b in order to separate the liquid to be treated flowing through such a through hole from the flow of the purified liquid to be treated guided to the outlet 12b. It is also advantageous to dispose of a pipe member having a discharge port that opens.

Further, even in the cyclone blade 26 which is a cyclone means, the shape of the plurality of blades 42 constituting the cyclone blade 26 is such that the cyclone blade 26 rotates due to the downward flow of the liquid to be treated, and the shape of the plurality of blades 42 is below the liquid to be treated. Any known blade shape can be adopted as long as a swirling flow toward is induced, and the number of blades 42 is appropriately selected so that the object of the present invention can be achieved. Will be done.

Furthermore, as in the example, the wiper 28 is preferably in the shape of an umbrella that tilts downward, but is simply in the shape of a plate-shaped collar or an annular plate having a predetermined thickness extending in the horizontal direction. However, there is no problem, and it is possible to adopt a form in which the magnet pipe 22 is fixedly attached to the outer peripheral surface, instead of the attachment form in which the magnet pipe 22 can rotate freely.

In addition, it is desirable that the entire container body 52 of the collection container 20 is transparent, but the amount of magnetic substances and non-magnetic substances contained therein can be grasped. In the above, there is no problem even if it is partially transparent. For example, a structure having a slit-shaped transparent window portion extending in the depth direction of the container body 52 can be adopted, and further, the container body 52 can be adopted. It is also possible to make the whole of the opaque structure or to make it made of metal.

In any case, the present invention can be implemented in a mode in which various changes, modifications, improvements, etc. are added based on the knowledge of those skilled in the art, and such an embodiment is the gist of the present invention. It should be understood that all of them belong to the scope of the present invention as long as they do not deviate from the above.

10 Removal filter 12 Inflow / outflow head 12a Inflow port 12b Outlet 14 Outer funnel 14a Rohto body 14b Rohto upper flange 14c Roth nipple 16 Inner funnel 18 Ball valve 18a Handle 20 Collection container 22 Magnet pipe 22a Storage groove 24 Magnet 26 Cyclone blade 28 Mounting ring 28b Umbrella 30 L-shaped pipe 30a Discharge port 32 Snap ring 40 Mounting ring 42 Blade 44 Moving rod 44a Upper rod 44b Lower rod 46 Operation handle 48 Pin 50 Nipple 52 Container body 54 Lid member 54a Cylindrical part 56 O-ring 58 ring nut

Claims (7)

An inflow port for inflowing a liquid to be treated in which a magnetic substance and a non-magnetic substance are mixed together or separately, and a liquid to be treated purified by separating and removing the magnetic substance and the non-magnetic substance. An inflow / outhead head having an outflow port for allowing the liquid to flow out so that the liquid to be processed flowing in from the inflow port is guided downward.
It consists of a truncated cone-shaped cylinder that shrinks downward in diameter, and is attached to the lower part of the inflow / outflow head at the large-diameter upper end opening of the cylinder, and is guided from the inflow / outhead in the cylinder. While the magnetic substance and the non-magnetic substance are separated and removed from the liquid to be treated, the liquid to be treated purified by such separation and removal is guided to the inflow port of the inflow / outflow head. ,
It consists of a truncated cone-shaped cylinder that is smaller than the cylinder that constitutes the outer funnel and whose diameter is reduced downward, and is housed in the outer funnel. While being fixed, the magnetic substance and the non-magnetic substance separated and removed from the liquid to be treated are lowered by gravity from the lower end opening having a small diameter so as to be accumulated in the lower part of the outer rotor. With the inner diameter
A bottomed cylindrical magnet pipe having a shape in which the lower end is closed, which penetrates the inflow / out head in the vertical direction and extends downward in the outer funnel.
It is arranged so as to be movable in the vertical direction in the magnet pipe, and by the downward movement arrangement in the magnet pipe, a predetermined magnetic field is applied to the liquid to be processed flowing in the outer funnel through the magnet pipe. The magnetic material in the liquid to be treated is attracted to the outer peripheral surface of the magnet pipe and magnetically separated, while the action of the magnetic field is selectively eliminated by moving upward. A magnet means that separates and drops the magnetic material adsorbed on the outer peripheral surface of the magnet pipe and causes it to drop into the inner funnel by gravity.
A plurality of blades are provided and rotatably attached to the outer peripheral surface of the magnet pipe, and the plurality of blades are rotated by the downward flow of the liquid to be processed guided from the inflow / outflow head. , The liquid to be treated induces a downward swirling flow, and the magnetic substance and the non-magnetic substance in the liquid to be treated are lowered into the inner funnel while swirling and moving downward in the outer funnel. Cyclone means and
A removable collection that is connected to the lower end opening of the outer funnel and descends from the lower end opening of the inner funnel to allow the magnetic or non-magnetic material to be accumulated to flow in from the lower end of the outer funnel by gravity. With the container
It is arranged on a communication passage that communicates the outer funnel and the collection container, opens and closes the communication passage, and the opening operation causes the magnetic substance and the non-magnetic substance to flow into the collection container. With a valve means that allows it,
A filter for removing magnetic and non-magnetic substances, which is characterized by having. In the inflow / outflow head, a liquid guide path connected to the inflow port and guiding the liquid to be treated downward from the inflow port is formed so as to extend downward from the upper part of the inflow / outflow head. The magnetic substance / non-magnetic substance removal filter according to claim 1. In a form in which the liquid guide has a horizontal portion extending in the horizontal direction from the inflow port and a vertical portion extending vertically downward from the horizontal portion, and the horizontal portion and the vertical portion form an L-shape. The magnetic substance / non-magnetic substance removal filter according to claim 2, which is formed. The discharge port of the liquid to be treated provided at the lower end of the vertical portion is composed of an opening that opens diagonally downward and outward, and the liquid to be treated is formed from the opening of the outer funnel. The magnetic substance / non-magnetic substance removing filter according to claim 3, which is designed to be discharged toward the inner surface. A wiper member that protrudes outward from the magnet pipe and extends over the entire circumference of the magnet pipe is arranged on the outer peripheral portion of the magnet pipe so as to be located below the cyclone means mounting position of the magnet pipe. The magnetic substance / non-magnetic substance removal filter according to any one of claims 1 to 4, which is provided. A moving rod having an operating portion located outward from the upper opening of the magnet pipe is attached to the magnet means, and by raising and lowering the operating portion, the magnet means is moved in the vertical direction in the magnet pipe. The magnetic substance / non-magnetic substance removal filter according to any one of claims 1 to 5, which can be moved to. The moving rod is configured to be bendable in the middle portion in the longitudinal direction thereof, and the bendable portion is folded in a state in which the bendable portion protrudes outward from the upper end opening of the magnet pipe due to the ascent of the moving rod. The magnetic substance / non-magnetic substance removing filter according to claim 6, wherein the position of the magnet means in the magnet pipe can be fixedly held by being bent.

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