JPH0344246Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Field of Application] The present invention relates to an over-dehydration machine that removes particles from contaminated liquids such as industrial oils and water.

[Prior art and its problems]

Conventionally, in order to allow contaminated liquid to pass through an overbody, a suction tube communicating with a suction pump has been provided, and the liquid is sucked through the suction tube to force the contaminated liquid to pass through the overbody.

However, when suctioning liquid with a suction tube like this, in order to suction contaminated liquid from a large space, the capacity of the suction pump must be increased to suction the contaminated liquid well. There was a problem in that the provision of a suction pump would make the entire over-deliquor equipment expensive. On the other hand, if you try to suck liquid in a narrow space by reducing the capacity of the suction pump, the effective area of the excess body will decrease proportionally, so particles will quickly pile up on the excess body and the excess body will become invisible. There was a problem with it getting clogged.

[Purpose of invention]

The purpose of the present invention is to overcome the problems of the conventional ones described above and to provide an over-deliquid machine that can efficiently remove particles in contaminated liquid without using a large-capacity suction pump. .

[Summary of the idea]

The present invention includes a suction tube that communicates with a suction pump and is disposed so that its axis is located in the horizontal direction, and has a plurality of openings formed at a lower part thereof at intervals in the axial direction;
A rotary tube attached to the outer periphery of the suction tube and rotatable by a drive source, and a rotary tube that protrudes at intervals in the axial direction of the rotary tube so as to communicate with the corresponding opening of the suction tube and are mutually circumferential. It is formed by a plurality of support pipes arranged at equal intervals in the direction, and a plurality of flat plates whose middle part in the width direction is supported by each support pipe, so that at least the lower part faces into the liquid storage tank. Each support tube has a polygonal cylinder extending in the horizontal direction, and a hypercylindrical body located on the outer periphery of the polygonal cylinder and supported by each top side of the polygonal cylinder and whose axis extends in the horizontal direction. The tips of the polygonal cylinders are placed so as to face each of the plurality of spaces formed by the flat plates of the polygonal cylinder and the inner peripheral surface of the hypercylindrical body, and the contamination is carried out through the narrow spaces located below while rotating the hypercylindrical body. The overefficiency is improved by suctioning the liquid.

[Example of idea]

The present invention will be explained below with reference to embodiments shown in the drawings.

FIG. 1 shows a first embodiment of the over-draining machine according to the present invention, in which a cylindrical suction pipe 2 extending horizontally is connected to a bearing (not shown) in a liquid storage tank 1, which will be described later. It is fixedly disposed so as to be supported.

This suction pipe 2 communicates with a suction pump (not shown), and as shown in FIG. 6) circular holes 3,
3 are formed at intervals in the axial direction of the suction tube 2. Further, a blind stopper 4 is fitted to one end of the suction tube 2, so that external fluid can be introduced into the suction tube 2 through the circular hole 3 when the suction pump is driven.

Returning to FIG. 1, a rotary tube 5 rotatable with respect to the suction tube 2 is attached to the outer periphery of the suction tube 2 in a fluid-tight manner via an O-ring (not shown). The rotary tube 5 is rotatably supported by a bearing (not shown), and the rotation of a motor is transmitted to the rotary tube 5 via a belt, chain, gear, or the like (not shown). As shown in FIG. 3, this rotating tube 5 has six through holes 6, 6, which communicate between the inside and outside of this rotating tube 5, and are spaced at equal intervals to the circular holes 3, 3 of the suction tube 2. They are connected in series in the axial direction. Further, these through holes 6 are formed in a spiral shape as a whole at intervals of 60 degrees in the circumferential direction. Six support tubes 7, 7, . . . that protrude in the radial direction are provided. Therefore, as the rotary tube 5 rotates, one of the support tubes 7 communicates with the inside of the suction tube 2 via the through hole 6 and the circular hole 3.

A hexagonal cylindrical body 8 extending in the horizontal direction is disposed around the outer periphery of the support tube 7 so that at least a lower portion thereof is located within the liquid storage tank 1 . This hexagonal cylinder 8
is formed into a regular hexagonal shape by joining six flat plates 9 of the same shape to each other, and the support tube 7 is inserted relatively densely into the middle part of each flat plate 9 in the width direction. Opening holes 10 to be obtained are formed at mutually different positions in each flat plate 9, and by inserting each support tube 7 into the opening 10 of each flat plate 9 and welding, the hexagonal cylinder 8 is made into 6
It is rotatably supported by a book support tube 7.
An overbody 11 whose axis extends in the horizontal direction is disposed on the outside of the hexagonal cylinder 8, and the overbody 11 is supported by welding on each top side of the hexagonal cylinder 8. It is designed to be able to rotate together with the cylindrical body 8. As shown in detail in FIGS. 4A and 4B, this overbody 11 has a cylindrical punching plate 12 in which a large number of small holes 13, 13... are bored, and the outer circumference of this punching plate 12. On the surface,
A long groove 14 is formed that extends over the entire area parallel to the axis. Then, both ends of the cloth 15 wound on the punching plate 12 are fitted into the long grooves 14, and then wedges 16 are press-fitted into the long grooves 14, and both ends of the cloth 15 are inserted into the long grooves 14.
It is designed to be kept inside. Further, both ends of the cloth 15 are fixed onto the punching plate 12 by band plates 17, 17. Note that a wire mesh may be provided in place of the punching plate 12.

Each of the support tubes 7 faces a position close to the inner circumferential surface of the overbody 11, and the overbody 1
An elongated magnet 18 extending parallel to the axis of FIG. 1 is disposed to face the overbody 11.

The rotary tube 5 includes the support tube 7, the hexagonal cylinder 8,
It is designed to be able to rotate in the clockwise direction shown by the arrow in FIG. A compression roller 19 made of an elastic material such as rubber that removes liquid.
Further, on the forward side of the compression roller 19 in the rotational direction of the overbody 11, a scraper 20 for scraping off particles from which the liquid content has been removed by the compression roller 19 is in pressure contact with the outer peripheral surface of the overbody 11. .

In the liquid storage tank 1, a portion facing the side where the circumferential surface of the overbody 11 descends during rotation in the circumferential direction of the overbody 11 is formed into an arcuate portion 21 having a relatively small gap with the overbody 11. On the other hand,
A portion of the overbody 11 facing the rising side is a flat portion 22 having a right-angled corner. In this flat part 22, the overbody 1
A belt-like cloth 23 is disposed to be in pressure contact with 1. This cloth 23 is attached to a plurality of rotatable pulleys 2
4, 24..., and are in pressure contact with the overbody 11 over a range of approximately 90 degrees forward in the direction of rotation from almost the lowest position of the overbody 11, and downwardly against the overbody 11. It is designed to prevent attached particles from falling.

Note that both ends of the overbody 11 are completely sealed by shielding plates (not shown), so that liquid can flow into the inside of the overbody 11 only from the circumferential surface of the overbody 11. Further, the contaminated liquid flows into the liquid storage tank 1 through a slit 25a formed in the supply pipe 25 extending horizontally toward the arcuate portion 21.
It is designed to be supplied almost evenly in the axial direction of 1. The contaminated liquid from the slit 25a of the supply pipe 25 is injected diagonally downward and collides with the overbody 11.

Next, the operation of the embodiment described above will be explained.

First, contaminated liquid is supplied into the liquid storage tank 1 from the supply pipe 25. It is desirable that the level of this contaminated liquid in the liquid storage tank 1 is within a range where air is not sucked in from the tip of the support tube 7 and at a relatively low height. When the contaminated liquid in the liquid storage tank 1 reaches a predetermined level in this way, the suction pump (not shown) is driven to suck the air in the suction tube 2, and the rotary tube 5 is rotated by a motor (not shown). The support tube 7, hexagonal cylinder 8, overbody 11, etc. are continuously rotated clockwise in FIG. 1 together with the rotary tube 5. Then, since each circular hole 3 is formed at the lower part of the suction tube 2, each support tube 7 protruding from the rotary tube 5 will move into the liquid storage tank as the rotary tube 5 rotates. By reaching the lower part of the rotary tube 1, the circular hole 3 of the suction tube 2 matches the through hole 6 of the rotary tube 5 and communicates with the inside of the suction tube 2. As a result, a lower part of the liquid storage tank 1 is formed in a total of six sealed spaces 26, 26, . The interior of the container located at
5 and the punching plate 12 into the lower sealed space 26, and the particles contained therein are left attached to the surface of the cloth 15. In addition, when the particles are iron, the particles are attracted to the magnets 18 attached to each flat plate 9 and move toward the surface of the cloth 15, so that the capture rate of the particles by the cloth 15 is further improved.

The cleaning liquid from which the particles contained therein have been removed as described above is introduced from the closed space 26 into the support tube 7, from where it is recirculated via the suction tube 2 to equipment, etc. (not shown). On the other hand, the cloth 15 of the overbody 11
While the particles are attached downward to the overbody 11, they are held between the cloth 23 that is in pressure contact with the cloth 15 and follows the cloth 15, and are prevented from falling. After the cloth 15 is conveyed and the liquid contained therein is removed by a compression roller 19, it is peeled off from the cloth 15 by a scraper 20 and accumulated in a predetermined accumulation section. By the way, when the support tube 7 is located vertically downward as the rotary tube 5 rotates, this is the position where the circular hole 3 where the suction tube 2 is located and the through hole 6 where the rotary tube 5 is located are matched to the maximum extent. As the support tube 7 moves upward from this position, the overlapping area between the through hole 6 and the circular hole 3 corresponding to the support tube 7 gradually decreases, and at a certain position where the support tube 7 faces diagonally downward, the support tube 7 and the circular hole 3 gradually decrease. Communication of the suction tube 2 is completely interrupted. Then, immediately before this, the next support pipe 7 gradually begins to communicate with the suction pipe 2, and
Suction of the contaminated liquid begins from the closed space 26 facing the tip of the next support tube 7.

In this way, the enclosed space 2 is located in the lower order.
The contaminated liquid is suctioned through the closed spaces 26, but since the volume of each sealed space 26 is small, the contaminated liquid can be suctioned well even with a small suction pump. Furthermore, since the filtration is not performed continuously from the same location, but the part of the filtration body 11 that is subjected to the filtration changes one after another, even if the filtration is performed continuously, the particles are not continuously peeled off from the cloth 15. This can prevent the cloth 15 from clogging.

As described above, according to this embodiment, filtration can be carried out continuously and efficiently without using a large-capacity suction pump, and particles can also be continuously peeled off from the cloth 15.
Clogging of the cloth 15 can also be prevented. In addition, since a magnet 18 is attached to each flat plate 9 of the hexagonal cylinder 8, iron powder and the like can be removed from the cloth by magnetic force.
5, and the overefficiency is further improved. Further, since the particles attached to the cloth 15 are prevented from falling into the contaminated liquid by the belt-shaped cloth 23, the particles can be reliably removed from the contaminated liquid. Furthermore, since the liquid storage tank 1 is formed with a circular arc portion 21 close to the overbody 11, the contaminated liquid passes through this narrow passage, improving the efficiency of adhesion of particles to the cloth 15. I can do it. Further, since no special processing of the cloth 15 is required, it can be manufactured at low cost.

In the above-described embodiment, the polygonal cylinder was described as the hexagonal cylinder 8, but the polygonal cylinder may have various numbers of angles from triangular to octagonal. Among these, the one with a small number of corners is this cylinder and its related suction pipe 2,
The rotary tube 5, the support tube 7, etc. can be easily processed and manufactured at low cost. In addition, with a large number of squares, the excess surface area is smaller than the cross-sectional area of the support tube 7, so it can be suctioned with a large suction force, and the excess efficiency is even better. Since the level of contaminated liquid that cannot be sucked in the storage tank 1 can be lowered to below the suction tube 2 and rotating tube 5, it can be exposed to the outside through the shielding plates stretched across both ends of the overbody 11. The bearing portions of the suction tube 2 and the rotary tube 5 are not submerged in liquid, and maintenance can be easily performed.
Further, by making the suction tube 2 and the rotary tube 5 adjustable in vertical movement, the overefficiency can be adjusted. Furthermore, overbody 11
The bottom wall of the area where the cloth 23 is located may be formed into an arcuate portion similar to the arcuate portion 21 described above, without providing the belt-like cloth 23 for preventing particles attached to the belt from falling.

Figure 5 shows a secondary filtration machine for repassing the purified liquid through the over-dehydration machine of Figure 1 and making it immediately reusable. A suction pump 28 is interposed in the connected suction line 27, and a liquid storage tank 29 is connected to the downstream side of this suction line 27. The liquid storage tank 29 is formed into a circular shape in plan, and an obliquely arranged oval cloth 30 is stretched over the entire area inside the liquid storage tank 29 at an intermediate position in the vertical direction. Further, a supply pipe 31 is connected to the liquid storage tank 29 above the cloth 30 for directly supplying the refiltered and further purified filtrate to the equipment in use. The lower liquid storage tank 29 is formed into an inverted conical portion 32 whose radius is gradually decreased downward in the shape of a funnel.
A particle collection pipe 33, which is normally closed and used to collect separated particles, is connected to the lower end of the pipe 2. A nozzle 34 for injecting liquid into the liquid storage tank 29 is attached to the tip of the suction pipe 27. This nozzle 34 faces directly below the lowest point of the cloth 30 arranged at an inclination, and sprays the liquid in the connection direction of the liquid storage tank 29 with an angle of depression larger than the inclination angle of the cloth 30. ing.

According to such a configuration, when the liquid that has passed through the filter shown in FIG. 29 is filled with liquid, the liquid injected from the nozzle 34 in the connection direction of the liquid storage tank 29 creates a vortex in the liquid storage tank 29, and the depression angle of the nozzle 34 is equal to the slope of the cloth 30. Since the particles are larger than the angle, the particles adhering to the lower surface of the cloth 30 are peeled off by hydraulic pressure while passing through the cloth 30,
It is passed through again for further cleaning. The filtrate that has passed through the cloth 30 and been further purified in this manner is supplied from the supply pipe 31 to equipment, etc. (not shown), and is reused. On the other hand, particles stored in the inverted conical portion 32 of the liquid storage tank 29 can be recovered by opening the particle recovery pipe 33.

In this way, by providing a secondary filtration machine, it is possible to further purify the liquid. and,
In this secondary filtration machine, particles adhering to the cloth 30 are peeled off by the liquid jetted from the nozzle 34, so there is no fear that the cloth 30 will become clogged.

[Effect of idea]

As explained above, according to the present invention, when a suction pump is used to suck a liquid from a suction tube and the contaminated liquid is forced to pass through the overbody, the tube surrounded by the flat plate of the polygonal cylinder and the overbody. Since suction is carried out continuously from a narrow space, it has the practical effect of efficiently removing particles in the contaminated liquid without using a large-capacity suction pump.

[Brief explanation of the drawing]

Fig. 1 is a vertical cross-sectional front view showing an embodiment of the over-water removal machine according to the present invention, Fig. 2 is a vertical cross-sectional side view of the suction pipe shown in Fig. 1, and Fig. 3 is a relation of the rotating pipe shown in Fig. 1. A partially cutaway side view of the configuration, FIG. 4A is a partially cutaway perspective view of the overbody, FIG. 4B is a vertical cross-sectional view of FIG. 4A, and FIG. 5 is connected to the excess liquid removal machine in FIG. FIG. 1...Liquid storage tank, 2...Suction tube, 5...Rotating tube,
7... Support tube, 8... Hexagonal cylinder, 9... Flat plate, 1
1... Overbody, 12... Punching plate, 1
5, 23, 30...cloth, 18...magnet, 19...
...Compression rollers 19, 20...Scraper, 25...
... Supply pipe, 26 ... Closed space, 28 ... Suction pump, 29 ... Liquid storage tank.

Claims (1)

[Claims for Utility Model Registration] 1. A suction tube that communicates with a suction pump and is arranged so that its axis is located in the horizontal direction, and that has a plurality of openings formed at its lower part at intervals in the axial direction, and this suction tube. A rotary tube attached to the outer periphery of the rotary tube and rotatable by a drive source; and a rotary tube protruding at intervals in the axial direction of the rotary tube so as to be able to communicate with the corresponding openings of the suction tube and having mutually equal circumferential distances. It is formed by a plurality of support pipes arranged at intervals and a plurality of flat plates whose middle portions in the width direction are supported by each support pipe. An extending polygonal cylinder,
a hypercylindrical body located on the outer periphery of the polygonal cylinder, supported by each top side of the polygonal cylinder and having an axis extending in the horizontal direction; and an over-liquid removal machine each facing into a plurality of closed spaces formed by the inner circumferential surface of the over-cylindrical body. 2. The over-liquid removal machine according to claim 1, wherein the over-cylindrical body is formed by stretching a cloth around the outer periphery of a cylindrical punching plate. 3. The above-mentioned hypercylindrical body is formed by stretching cloth around the outer periphery of a cylindrical wire mesh.
Excess liquid removal machine described in section. 4. The excessive liquid removal machine according to any one of claims 1 to 3, wherein the bottom wall of the liquid storage tank is formed into an arcuate surface concentric with the hypercylindrical body. 5. The excessive liquid removal machine according to claim 4, wherein the suction pipe is movable in the vertical direction so as to adjust the distance between the hypercylindrical body and the bottom wall of the liquid storage tank. 6. Any one of claims 1 to 5 of the utility model registration claim, wherein a compression roller and a scraper are in pressure contact with the upper outer circumferential surface of the hypercylindrical body.
Excess liquid removal machine described in section. 7. Any of the utility model registration claims 1 to 6, wherein a magnet extending in the axial direction of the hypercylindrical body is attached to the surface of each flat plate of the polygonal cylinder that faces the hypercylindrical body. The excessive liquid removal machine according to item 1. 8. Utility model registration claim 1, in which a cloth belt for holding particles attached to the hypercylindrical body is disposed in the liquid storage tank to face the hypercylindrical body.
The excessive liquid removal machine according to any one of Items 7 to 7.