JPH09290104A - Apparatus for processing fluid containing solid matter - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an apparatus always for processing a fluid contg. solid matter which can always keep a high separation efficiency by avoiding clogging of a strainer. SOLUTION: By arranging a fluid spreading plate 23 immediately below an inlet opening 14 provided on the top wall 22 of a separation tank 10, it is possible to prevent a fluid 16 contg. a solid matter 17 from colliding directly with the solid matter 17 accumulated in the space above an on-off valve and to prevent a cylindrical strainer 11 from being clogged with the scattered solid matter 17. In addition, as the fluid 16 contg. the solid matter 17 flows downward along the inner face of the cylindrical strainer 11, the solid matter 17 sticked on the inner face of the cylindrical strainer 11 can be washed down with the fluid 16.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for treating a fluid containing a solid substance, which is capable of eliminating a clogging of a strainer and maintaining a high separation efficiency at all times.

[0002]

2. Description of the Related Art The applicant of the present invention has previously filed Japanese Patent Application Laid-Open No. 61-696.
Japanese Patent Laid-Open No. 18 discloses a device for treating a fluid containing a solid substance, which is capable of removing the solid substance from a fluid containing the solid substance and taking out only the fluid, and transporting the fluid to a desired location.

FIG. 10 shows the structure of a processing apparatus B for a fluid containing a solid substance as described above. As shown, the separation tank 50
Inside, cylindrical strainers 51 having upper and lower end openings are concentrically arranged. The tubular strainer 51 defines an inner central compartment 52 and an outer annular compartment 53 in the separation tank 50. The top wall of the separation tank 50 is provided with an inlet 54 communicating with the inner central compartment 52. A downstream end of the suction hose 55 is communicatively connected to the inflow port 54, and an upstream end of the suction hose 55 is connected to the solid 5
It is inserted in the fluid 56 containing 7.

The outer annular compartment 53 is communicatively connected to a suction device 58 composed of a water sealing pump. On the other hand, the lower opening of the inner central compartment 52 is linked to the fluctuation of the pressure state in the separation tank 50. An on-off valve 59, which is a flat elastic hose that automatically opens and closes, is attached.

With such a structure, when the suction device 58 is driven, the inside of the separation tank 50 becomes negative pressure, that is, lower than atmospheric pressure, and the opening / closing valve 59 attached to the bottom of the separation tank 50 becomes external atmospheric pressure. It is pushed and becomes flat and closed. As a result, the inside of the separation tank 50 is in a vacuum state, and the fluid 56 containing the solid matter 57 is passed through the suction hose 55.
Is sucked into the inner central compartment 52 of the separation tank 50,
After that, it is transferred to the suction device 58.

However, since the cylindrical strainer 51 is disposed in the separation tank 50, the solids 57 become the fluid 56.
Then, only the fluid 56 is transferred to a desired location through the suction device 58, the drain pipe 60 connected to the downstream side of the suction device 58, and the circulating water tank 61.
On the other hand, the solid matter 57 remains in the inner central compartment 52 and is gradually deposited. Then, when the operation of the suction device 58 is stopped, the pressure in the separation tank 50 returns to atmospheric pressure, and therefore the hose forming the opening / closing valve 59 returns from the flat state to the original hollow circular cross section. Therefore, the solid matter 57 accumulated in the inner central compartment 52 is removed from the open / close valve 59.
Will be automatically discharged to the outside.

[0007]

However, the above-mentioned conventional apparatus for treating a fluid containing a solid material still has the following problems to be solved. That is, as shown in FIG. 10, in the treatment apparatus B for a fluid containing solids, the fluid 56 containing solids 57 flows down directly into the inner central compartment 52 through the inflow port 54. The solid matter 57 already deposited below the central compartment 52 is violently collided, and a part of the solid matter 57 is scattered upward as shown by an arrow a and adheres to the inner surface of the cylindrical strainer 51 to form a cylindrical strainer 51. Clogging part of the. As a result, the separating performance of the cylindrical strainer 51 is reduced.

The fluid 56 containing the solid matter 57 is the solid matter 5 which has already been separated from the fluid 56 and deposited in a dehydrated state.
As a result, the solids are mixed with a part of the fluid such as muddy water and the separation efficiency or the dehydration efficiency is lowered.

The present invention has been made in view of such circumstances, and it is possible to eliminate clogging of the strainer at all times.
It is an object of the present invention to provide a treatment device for a fluid containing a solid substance, which can maintain high separation efficiency.

[0010]

According to the present invention, there is provided a semiconductor device comprising:
The apparatus for treating a fluid containing a solid substance described above comprises cylindrical strainers having upper and lower end openings concentrically arranged in a separation tank, and the cylindrical strainer allows the inner central compartment and the outer annular compartment to be separated in the separation tank. A partition wall is formed, and an inlet port communicating with the inner central compartment is provided on the top wall of the separation tank, and the inlet port is connected to the other end of a suction hose inserted into a fluid containing solid matter, A solid body that connects the outer annular chamber to a suction device and connects an opening / closing valve that automatically opens / closes at the lower end opening of the inner central chamber in response to fluctuations in the pressure state in the separation tank. In an apparatus for treating a fluid containing a substance, a fluid diffusion plate is arranged at a position immediately below the inflow port, and the fluid flowing into the separation tank can be radially diffused along the upper surface of the fluid diffusion plate. I am trying.

According to a second aspect of the present invention, there is provided an apparatus for treating a fluid containing a solid substance according to the first aspect, wherein the fluid diffusion plate has a height gradually increasing from a center toward an outer peripheral edge. It is formed from a plate having a conical tapered surface that becomes lower. A solid-state fluid treatment device according to claim 3 is the solid-state fluid treatment device according to claim 2, wherein the conical tapered surface of the fluid diffusion plate is circumferentially spaced. Install multiple spiral flow guide pieces.

[0012]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, with reference to the attached drawings, several embodiments embodying the present invention will be described for the understanding of the present invention.

(First Embodiment) First, with reference to FIGS. 1 to 6, the structure of a treatment apparatus A for a fluid containing solid matter according to a first embodiment of the present invention will be specifically described. To do. As shown in the drawing, in the separation tank 10 installed on the machine frame 26, cylindrical strainers 11 made of porous punching metal, filter cloth, etc. having upper and lower end openings are concentrically arranged. The tubular strainer 11 defines an inner central compartment 12 and an outer annular compartment 13 in the separation tank 10.

The top wall 22 of the separation tank 10 is provided with an inlet 14 which communicates with the inner central compartment 12. A downstream end of a suction hose 15 which is a long flexible hose is connected to the inlet 14, and the upstream end of the suction hose 15 is inserted into a fluid 16 containing a solid substance 17. The outer annular compartment 13 is connected to a suction device 18 which is a self-priming pump (self-priming pump) installed on the machine frame 26. On the other hand, at the lower end opening of the inner central compartment 12, a hose 2 having elasticity that automatically opens and closes in conjunction with fluctuations in the pressure state in the separation tank 10.
An on-off valve 19 consisting of 0 is attached.

As shown in the drawing, the hose 20 is gradually expanded in diameter from the lower end toward the upper end. Then, when the pressure in the separation tank 10 is equal to the atmospheric pressure, the lower end of the hose 20 is elastically held by the hose 20 as shown in FIG.
It is open as shown in. On the other hand, when the pressure in the separation tank 10 becomes negative, the lower end of the hose 20 is closed as shown in FIG. 7A due to the pressure difference between the atmospheric pressure and the negative pressure.

With such a structure, when the suction device 18 is driven, the inside of the separation tank 10 becomes negative pressure, that is, lower than atmospheric pressure, and the hose 20 constituting the opening / closing valve 19 attached to the bottom of the separation tank 10 is constituted. The lower end is flattened by being pushed by the outside atmospheric pressure. As a result, the inside of the separation tank 10 is in a vacuum state, and the fluid (for example, the solid matter (for example, earth and sand)) 17 (for example,
Water 16 will be sucked into the inner central compartment 12 of the separation tank 10 and then transferred towards the suction device 18.

However, since the cylindrical strainer 11 is disposed in the separation tank 10, the fluid 16 is a solid substance 17
Then, only the fluid 16 is transferred to a desired location through the suction device 18 and the drain pipe 21 connected to the downstream side of the suction device 18. On the other hand, the solid matter 17 remains in the inner central compartment 12 and is gradually deposited.

When the operation of the suction device 18 is stopped, the pressure in the separation tank 10 returns to the atmospheric pressure, so that
The lower end of the hose 20 forming the on-off valve 19 returns from the flat closed state (see FIG. 7A) to the original open state of the hollow circular cross section (FIG. 7B). Therefore, the solid matter 17 accumulated in the inner central compartment 12 is automatically discharged to the outside through the opening / closing valve 19.

The present invention is characterized in that, in the above-mentioned structure, the cylindrical strainer 11 is effectively prevented from being clogged with the fluid 16 containing the solid matter 17. Hereinafter, this configuration will be specifically described. FIG.
As shown in FIG. 3, a fluid diffusion plate 23 is provided above the inner central compartment 12 and at a position directly below the inflow port 14 provided in the top wall 22 of the separation tank 10.

In this embodiment, the fluid diffusion plate 23 is made of a disc having a diameter slightly smaller than that of the cylindrical strainer 11, and a plurality of support rods 24 arranged in the circumferential direction are used to separate the separation tank 10. It is fixedly connected to the top wall 22. In addition, the support rods 24 allow the separation tank 1
A fluid diffusion space 25 is formed between the back surface of the zero top wall 22 and the top surface of the fluid diffusion plate 23.

With such a structure, the fluid (eg, water) 16 containing the solid matter (eg, earth and sand) 17 that flows into the separation tank 10 through the suction hose 15 by the drive of the suction device 18 firstly receives the fluid diffusion plate 23. And is decelerated by colliding with the central part of the, and then diffused radially in a thin layer from the central part to the outer peripheral edge part. Then, after colliding with the upper part of the cylindrical strainer 11 and further decelerating, the cylindrical strainer 1
It will flow downward along the inner surface of 1. And
During this flow, most of the fluid 16 is inside the central compartment 12
Is sucked and transferred to the outer annular compartment 13, and then sucked and transferred to the suction device 18. On the other hand, the remaining fluid 16 and the solid matter 17 flow down into the upper space of the opening / closing valve 19 whose lower end is closed and are accumulated.

As described above, in the present embodiment, the fluid diffusion plate 23 is arranged directly below the inflow port 14 provided in the top wall 22 of the separation tank 10, so that the fluid 16 containing the solid matter 17 is directly supplied. It is possible to prevent the solid matter 17 accumulated in the upper space of the on-off valve 19 from colliding, and it is possible to prevent the cylindrical strainer 11 from being clogged by the solid matter 17 scattered by the collision.

Further, the fluid 16 containing the solid matter 17 becomes a thin layer and flows downward along the inner surface of the cylindrical strainer 11, so that the solid matter 17 adheres to the inner surface of the cylindrical strainer 11 for some reason. Even if there is, the solid matter 17 can be peeled off, and the clogging of the cylindrical strainer 11 can be prevented from this point as well.

By the way, as shown by the alternate long and short dash line in FIG. 1, the on-off valve 19 extends a lower end portion thereof to form a hose extension 19a, and the hose extension 19a can be detachably attached to the hose stopper 27. It can also be configured so that it can be hung on. In this case, even if the opening / closing valve 19 is opened, solid matter does not flow out unless the hose extension portion 19a is removed from the hose stopper 27, so that so-called runoff can be prevented, and the treatment of the solid matter 17 is beautiful and easy. Can be done. 3 to 6 show modifications of the fluid diffusion plate 23. The fluid diffusion plate 28 shown in FIG. 3 is characterized by being formed of a plate body having a conical taper surface whose height gradually decreases from the center toward the outer peripheral edge. In the figure, 28 a is a support rod for fixedly connecting the fluid diffusion plate 28 to the top wall 22 of the separation tank 10.

With such a structure, the fluid diffusion plate 28 can uniformly flow the fluid 16 containing the solid matter 17 flowing into the separation tank 10 from the central portion thereof in the entire circumferential direction. , Separation effect of solids 17 and fluid 1
It is possible to enhance the effect of draining off the adhered solid matter 17 by the method 6.

The fluid diffusion plate 29 shown in FIGS. 4 and 5 is formed of a plate body having a conical taper surface whose height gradually decreases from the center toward the outer peripheral edge, and the conical taper surface has a circular shape. It is characterized in that a plurality of spiral flow guide pieces 30 are attached at intervals in the circumferential direction. In the figure,
29 a denotes a fluid diffusion plate 29 which is a top wall 22 of the separation tank 10.
Is a supporting rod for fixedly connecting to.

The fluid 16 containing the solid matter 17 flowing into the separation tank 10 by the flow guide piece 30.
Can be made to flow uniformly and spirally in the entire circumferential direction from its central portion, and the effect of separating the solids 17 and the effect of the solids 17 adhering to the inner surface of the cylindrical strainer 11 by the fluid 16 can be further enhanced. be able to. Instead of the spiral flow guide piece 30, a linear flow guide piece may be attached to the conical tapered surface of the fluid diffusion plate 29.

The fluid diffusion plate 43 shown in FIG. 6 has a drive motor 46 attached to the top wall 45 of the separation tank 44.
It is characterized by being rotated by. In the figure, 47 is a solid material 17 in the center of the fluid diffusion plate 43.
It is a fluid introduction pipe for flowing the fluid 16 containing.

The fluid diffusing plate 43 is rotated by the drive of the drive motor 46, and the fluid 16 including the solid matter 17 flowing into the separation tank 10 is uniformly distributed in the entire circumferential direction from the central portion by the centrifugal force. In addition, the solid material 17 can be spirally flowed, and the solid material 16 attached to the inner surface of the cylindrical strainer 11 by the fluid 16 can be effectively drained off.

(Second Embodiment) Next, with reference to FIG. 8, the structure of a processing apparatus A1 for a fluid containing solid matter according to a second embodiment of the present invention will be specifically described. The apparatus A1 for treating a fluid containing a solid matter according to the present embodiment is provided with an on-off valve 3
Except for 1, the other configurations are substantially the same as those of the solid-state fluid-containing apparatus A according to the first embodiment described above, and thus the same configurations are denoted by the same reference numerals.

As shown in FIG. 8, the on-off valve 31 is composed of a hopper portion 32 which is attached to the lower portion of the separation tank 10 and which contains the solid material 17, and an electromagnetic on-off valve 33 which is attached to the lower portion of the hopper portion 32. Therefore, the drive circuit of the electromagnetic opening / closing valve 33 is connected to the control device 34. Meanwhile, the hopper unit 3
2 is a pressure sensor 3 for detecting the internal pressure of the separation tank 10.
5 is attached, and the pressure sensor 35 is a control device 34.
It is connected to the.

Therefore, the pressure sensor 35 detects the pressure fluctuation in the separation tank 10 due to the driving of the suction device 18, and based on the detected value, the electromagnetic on-off valve 33 is driven through the control device 34 to open the on-off valve 31. Can be opened and closed automatically. Also in this embodiment, the fluid diffusion plate 23
As a result, the fluid 16 including the solid matter 17 directly transfers the on-off valve 31.
It is possible to prevent the solid matter 17 accumulated in the upper space of the cylinder from colliding, and it is possible to prevent the cylindrical strainer 11 from being clogged by the solid matter 17 scattered by the collision.

Further, since the fluid 16 containing the solid substance 17 becomes a thin layer and flows down along the inner surface of the cylindrical strainer 11, the solid substance 17 adheres to the inner surface of the cylindrical strainer 11 for some reason. Even if there is, the solid matter 17 can be peeled off, and the clogging of the cylindrical strainer 11 can be prevented from this point as well.

(Third Embodiment) Next, with reference to FIG. 9, the structure of a processing apparatus A2 for a fluid containing solid matter according to a third embodiment of the present invention will be specifically described. The solid-state fluid treatment device A2 according to the present embodiment is substantially the same in structure except for the suction device 36 as to the solid-state fluid treatment device according to the first embodiment. Since it is the same as A, the same components are denoted by the same reference numerals.

As shown in FIG. 9, in the present embodiment, the separation tank 10 and the suction device 36 are respectively provided in the machine casing 3
It is installed on 7, 38. The suction device 36 substantially includes a liquid storage tank 39 mounted on the machine frame 38 and a liquid storage tank 39.
It is composed of a discharge pump 40 disposed inside, and a vacuum pump 41 mounted on the top wall of the liquid storage tank 39 in order to evacuate the internal space of the liquid storage tank 39. The internal space of the liquid storage tank 39 is connected to the separation tank 10 by a communication pipe 42.

Therefore, by driving the vacuum pump 41,
The pressure inside the separation tank 10 can be reduced through the internal space of the liquid storage tank 39 and the communication pipe 42. Also in the present embodiment, the fluid diffusion plate 23 can prevent the fluid 16 including the solid matter 17 from directly colliding with the solid matter 17 accumulated in the upper space of the on-off valve 19.
It is possible to prevent the cylindrical strainer 11 from being clogged with the solid matter 17 scattered by this collision.

Further, since the fluid 16 containing the solid matter 17 becomes a thin layer and flows down along the inner surface of the cylindrical strainer 11, the solid matter 17 adheres to the inner surface of the cylindrical strainer 11 for some reason. Even if there is, the solid matter 17 can be peeled off, and the clogging of the cylindrical strainer 11 can be prevented from this point as well.

Although the present invention has been described above with reference to some embodiments, the present invention is not limited to the configurations described in the above embodiments, and the scope of the claims is not limited thereto. It also includes other embodiments and modifications that are conceivable within the scope of the matters described. For example, the suction device is not limited to the self-priming pump or the vacuum pump, and a water-sealing pump or the like can be used.

[0039]

In the apparatus for treating a fluid containing a solid matter according to claims 1 to 3, the fluid diffusing plate is arranged immediately below the inlet provided on the top wall of the separation tank.
It is possible to prevent the fluid containing solid matter from directly colliding with the solid matter accumulated in the upper space of the on-off valve, and to prevent clogging of the cylindrical strainer due to the solid matter scattered by this collision. it can.

Further, since the fluid containing the solid matter becomes a thin layer and flows down along the inner surface of the cylindrical strainer,
Even if solid matter adheres to the inner surface of the cylindrical strainer for some reason, the solid matter can be removed and clogging of the cylindrical strainer can be prevented from this point as well. Therefore, it is possible to always treat the fluid containing the solid matter while maintaining high separation efficiency.

In particular, in the apparatus for treating a fluid containing a solid matter according to a second aspect, the fluid diffusion plate is formed of a plate body having a conical tapered surface whose height gradually decreases from the center toward the outer peripheral edge. ing. Therefore, the fluid diffusion plate can uniformly flow the fluid containing the solid matter that has flowed into the separation tank in the entire circumferential direction from its central portion, and the solid diffusion effect and the inner surface of the cylindrical strainer due to the fluid can be obtained. It is possible to enhance the effect of draining the adhered solid matter.

According to a third aspect of the present invention, there is provided a fluid treatment apparatus including a solid matter, wherein the conical taper surface of the fluid diffusion plate in the second fluid treatment apparatus including the solid matter comprises:
A plurality of spiral flow guide pieces are attached at intervals in the circumferential direction. Therefore, with this flow guide piece, the fluid containing the solid matter that has flowed into the separation tank can be made to flow uniformly and spirally from the central portion in the entire circumferential direction, and the separation effect of the solid matter and the fluid It is possible to further enhance the effect of draining the solid matter attached to the inner surface of the cylindrical strainer.

[Brief description of drawings]

FIG. 1 is a partially cutaway side view of a fluid treatment device including a solid matter according to a first embodiment of the present invention.

FIG. 2 is a sectional view taken along the line I-I of FIG.

FIG. 3 is an explanatory diagram of a modified example of a fluid diffusion plate.

FIG. 4 is an explanatory diagram of a modified example of a fluid diffusion plate.

5 is a sectional view taken along line II-II of FIG.

FIG. 6 is an explanatory diagram of a modified example of the fluid diffusion plate.

FIG. 7 is an explanatory diagram showing an open / closed state of a hose that constitutes an on-off valve.

FIG. 8 is a partially cutaway side view of a fluid treatment apparatus including a solid matter according to a second embodiment of the present invention.

FIG. 9 is a partially cutaway side view of a fluid treatment device including a solid matter according to a third embodiment of the present invention.

FIG. 10 is a partially cutaway side view of a conventional apparatus for treating a fluid containing a solid matter.

[Explanation of symbols]

A Fluid Processing Device Containing Solids A1 Fluid Processing Device Containing Solids A2 Fluid Processing Device Containing Solids 10 Separation Tank 11 Cylindrical Strainer 12 Inner Central Chamber 13 Outer Annular Chamber 14 Inlet 15 Suction Hose 16 fluid 17 solid matter 18 suction device 19 opening / closing valve 19a hose extension part 20 hose 21 drainage pipe 22 top wall 23 fluid diffusion plate 24 support rod 25 fluid diffusion space 26 machine frame 27 hose stopper 28 fluid diffusion plate 28a support rod 29 fluid Diffusion plate 29a Support rod 30 Flow guide piece 31 Open / close valve 32 Hopper part 33 Electromagnetic on-off valve 34 Control device 35 Pressure sensor 36 Suction device 37 Machine frame 38 Machine frame 39 Storage tank 40 Discharge pump 41 Vacuum pump 42 Communication pipe 43 Fluid diffusion Plate 44 separation tank 45 top wall 46 drive motor 47 fluid introduction pipe

Claims (3)

[Claims] 1. A cylindrical strainer having upper and lower end openings is concentrically arranged in a separation tank, and the cylindrical strainer defines an inner central compartment and an outer annular compartment in the separation tank. An inlet is provided on the top wall of the separation tank to communicate with the inner central compartment, and the inlet is connected to the other end of a suction hose inserted into a fluid containing solids to suck the outer annular compartment. An apparatus for treating a fluid containing a solid substance, which is connected to an apparatus and is provided with an opening / closing valve that automatically opens / closes at the lower end opening of the inner central compartment in association with a change in the pressure state in the separation tank. In the above, the fluid diffusing plate is disposed at a position immediately below the inflow port, and the fluid flowing into the separation tank can be radially diffused along the upper surface of the fluid diffusing plate. A device for treating a fluid containing solid matter. 2. The fluid containing a solid according to claim 1, wherein the fluid diffusion plate is formed of a plate body having a conical taper surface whose height gradually decreases from the center toward the outer peripheral edge. Processing equipment. 3. The solid material according to claim 2, wherein a plurality of spiral flow guide pieces are attached to the conical tapered surface of the fluid diffusion plate at intervals in the circumferential direction. Fluid processing equipment.