JP2014178129A - Solid-liquid separation apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a highly versatile solid-liquid separation apparatus for sediment capable of efficiently separating water and sediment contaminated by radioactive matters from the water taken from a river or a lake and including the sediment contaminated by the radioactive matters.SOLUTION: A solid-liquid separation apparatus for separating the sediment from a fluid mixture of the sediment and the water is disclosed. The solid-liquid separation apparatus includes: a container body with an open top; and an inlet and an outlet attached to a lateral side of the container body and communicating to the inside of the container body, where attachment height of the inlet is different from attachment height of the outlet in the container body. The solid-liquid separation apparatus has high versatility and can easily separate the sediment from the fluid mixture of the water and the sediment contaminated by the radioactive matters.

Description

  The present invention relates to a solid-liquid separator, and more particularly, to a solid-liquid separator that can separate the earth and sand from a mixed fluid of earth and sand.

  The Great East Japan Earthquake that occurred in 2011 caused tremendous damage to Japan due to the Tohoku-Pacific Ocean Earthquake and the accompanying tsunami.

  Among them, the diffusion of a large amount of radioactive material that occurred in Fukushima Prefecture is still serious as it has forced long-term evacuation of local residents. This diffusion of radioactive materials causes soil contamination by radioactive materials in many places in the Tohoku region, and removal of radioactive materials has become an urgent issue.

  In particular, soil contaminated with radioactive material has a great impact on local agricultural production. The existence of soil contaminated with radioactive materials can be said to be a major factor that hinders the recovery of the Tohoku region.

  Here, it is known that the soil contaminated with radioactive substances has more radioactive substances on the soil side than the water contained therein. For example, in the field of rice cultivation, when water is drawn into a paddy field from a river or lake, it is a problem to avoid the inflow of soil contaminated with such a radioactive material. It is desired to take only the desired water into the paddy field.

  On the other hand, separating the radioactive substance itself or the sediment containing the radioactive substance from the soil contaminated with the radioactive substance (a mixture of water and earth and sand) usually requires expensive dedicated equipment. There is concern that it will not reach the general agricultural sector.

  An object of the present invention is to solve the above-mentioned problems, and the object of the present invention is to contaminate with water and radioactive substances from water containing sediments contaminated with radioactive substances taken from rivers or lakes. An object of the present invention is to provide a highly versatile solid-liquid separator that can efficiently separate earth and sand.

  The present invention relates to a solid-liquid separation device for separating earth and sand from a mixed fluid of earth and sand and water, the container body having an open top, attached to a side portion of the container body, and the container The apparatus includes an inlet and an outlet that communicate with the inside of the main body, and the mounting height of the inlet and the outlet of the container main body are different.

  In one embodiment, the inlet and the outlet are provided to face each other in the horizontal direction of the container body.

  In one embodiment, a partition wall that can divide the inside of the container main body and has an opening in the central portion and a channel that communicates from the opening to the discharge portion through an inclined surface are provided inside the container main body. A separation promoting cartridge is provided.

  In one embodiment, the inclined surface in the separation promoting cartridge is inclined upward at an angle of 45 ° to 80 ° with respect to the horizontal direction.

  In one embodiment, at least one water-permeable material selected from the group consisting of a brush, a nonwoven fabric, a woven fabric, and a knitted fabric is disposed on the inclined surface.

  In one embodiment, the separation facilitating cartridge is provided in a water permeable inner container housed in the container body and removable, and the inlet and the outlet of the container body are provided with the water permeable cartridge. Communicate with the internal container.

  In one embodiment, the earth and sand is earth and sand contaminated with radioactive substances.

  ADVANTAGE OF THE INVENTION According to this invention, water can be supplied by isolate | separating earth and sand efficiently with respect to the mixed fluid of the earth and sand flowing out from a river or a lake. The solid-liquid separation device of the present invention can efficiently separate earth and sand from a mixed fluid without supplying external energy such as electricity or oil separately. The solid-liquid separation device of the present invention can also easily separate only the earth and sand from a mixed fluid containing earth and sand contaminated with radioactive substances such as radioactive cesium and radioactive iodine. Therefore, it is possible to easily take out only water with a reduced content of the radioactive substance from the mixed fluid without providing an expensive dedicated facility for removing the radioactive substance.

It is a schematic diagram of the said separator for demonstrating an example of the solid-liquid separator of this invention. It is a longitudinal cross-sectional view of the separation apparatus of this invention shown by FIG. 1, Comprising: It is sectional drawing of the separation apparatus in A-A 'direction. It is a schematic cross section of the said separation apparatus for demonstrating the state which water and earth and sand isolate | separate by letting the mixed fluid of earth and sand pass through the separation apparatus of this invention shown by FIG. It is a schematic diagram of the said separator for demonstrating the other example of the solid-liquid separator of this invention. FIG. 5 is a diagram for schematically illustrating and explaining a separation promotion cartridge loaded in the separation apparatus of the present invention shown in FIG. 4, and is a perspective view of the separation promotion cartridge. FIG. 5 is a cross-sectional view of the separation apparatus of the present invention shown in FIG. 4, and is a cross-sectional view of the separation apparatus in the B-B ′ direction. FIG. 5 is a longitudinal sectional view of the separation apparatus of the present invention shown in FIG. 4, and a sectional view of the separation apparatus in the C-C ′ direction. It is a schematic cross section of the said separation apparatus for demonstrating the state which water and earth and sand isolate | separate by letting the mixed fluid of earth and sand pass through the separation apparatus of this invention shown by FIG. It is sectional drawing of the said separator for demonstrating the further another example of the solid-liquid separator of this invention. It is sectional drawing of the said separation apparatus for demonstrating another example of the solid-liquid separation apparatus of this invention, Comprising: (a) is equipped with the funnel type separation promotion cartridge in the container main body, The said funnel type separation promotion cartridge FIG. 6 is a schematic view for explaining a state in which the water permeability of the tapered portion and the liquid collecting portion are different, and (b) includes a funnel-type separation promoting cartridge in the container body, and the tapered portion of the funnel-type separation promoting cartridge. It is a schematic diagram for demonstrating the state in which a liquid collection part has substantially the same water permeability. It is sectional drawing of the said separation apparatus for demonstrating another example of the solid-liquid separation apparatus of this invention, Comprising: In order to demonstrate the separation apparatus further provided with the permeable internal container in the container main body It is a schematic diagram of the said separation apparatus.

  Hereinafter, the present invention will be described with reference to the drawings.

  FIG. 1 is a schematic view of the separation device for explaining an example of the solid-liquid separation device of the present invention.

  A solid-liquid separation device 100 of the present invention shown in FIG. 1 includes a container body 102 and an inlet 104 and an outlet 106 attached to the side of the container body 102. The inlet 104 and the outlet 106 communicate with the inside of the container body 102, respectively.

  The container body 102 is a container that is open at the top and closed at the bottom, and includes, for example, a cylinder, a rectangular tube, or a cylinder or a rectangular tube that is tapered downward. A lid that can be opened and closed as necessary may be separately received above the container body 102. The size is not particularly limited, but for example, when the farmer individually uses for irrigation, the upper outer diameter is, for example, 20 cm to 70 cm, and when used as a large irrigation facility for common use, The diameter is, for example, 1 m to 10 m, more preferably 1 m to 2 m. The material of the container body 102 is not particularly limited. For example, plastic (for example, polyethylene, polypropylene, polyurethane, and polyethylene terephthalate, or recycled plastic regenerated from a product including these materials), metal (for example, steel, Tin, stainless steel, and aluminum). It is preferable to use plastic in terms of excellent versatility and low manufacturing costs. For the container main body 102, a ready-made product such as a plastic bucket may be used as it is.

  Each of the inlet 104 and the outlet 106 is a pipe having an arbitrary inner diameter, and is fixed by means well known to those skilled in the art so that one end thereof communicates with the inside of the container body 102. The outer diameter of each of the inlet 104 and the outlet 106 is, for example, 18 mm to 216 mm, preferably 28 mm to 114 mm. The outer diameter of the inlet 104 and the outlet 106 may be the same or different outer diameters. The lengths of the inlet 104 and the outlet 106 are not particularly limited. Any of them may have a length of, for example, 20 cm to 70 cm from the connecting portion of the container main body 102 to the other end.

  The material of the inlet 104 and the outlet 106 is not particularly limited. For example, plastic (for example, polyethylene, polypropylene, polyurethane, and polyethylene terephthalate, or recycled plastic regenerated from a product including these materials), metal ( For example, steel, tinplate, stainless steel, and aluminum). It is preferable to use plastic in terms of excellent versatility and low manufacturing costs. In FIG. 1, one injection port 104 and one discharge port 106 are provided, but the present invention is not necessarily limited to such a configuration. That is, a plurality of inlets and outlets may be attached to the container body 102.

  In the separation device 100 of the present invention, the injection of the mixed fluid of earth and sand from the inlet 104 and the discharge of the water after separation from the outlet 106 are performed smoothly. 104 and the discharge port 106 are preferably provided to face each other in the horizontal direction of the container body 102.

  FIG. 2 is a longitudinal sectional view of the separation apparatus 100 of the present invention shown in FIG. 1, and is a cross-sectional view of the separation apparatus 100 in the A-A ′ direction.

As shown in FIG. 2, the mounting heights of the inlet 104 and the outlet 106 attached to the container body 102 of the separation device 100 are different from each other. Due to such a difference in height, the mixed fluid of earth and sand flowing in from the inlet 104 is efficiently separated into earth and sand in the container main body 102, and the separated water is discharged from the outlet 106. Can be discharged. The height of the inlet 104 and the outlet 106 is the length (t ₁₎ obtained by extending the central axis of the inlet 104 and the central axis of the outlet 106 as shown in FIG. ), For example, 1 cm to 5 cm, more preferably 1 cm to 3 cm.

  FIG. 3 is a schematic cross-sectional view of the separation device 100 for explaining a state where water and earth and sand are separated by passing a mixed fluid of earth and sand through the separation device 100 of the present invention shown in FIG. is there.

  In FIG. 3, a fluid 150 formed from a mixture containing earth and sand and water (in this specification, sometimes referred to as “mixed fluid of earth and sand” or simply “mixed fluid”) 150 is It is introduced into the container body 102 through the inlet 104. The mixed fluid 150 that has entered the container body 102 is temporarily stored in the container 102. During this storage, the earth and sand 152 and the water 154 are naturally separated due to the difference in specific gravity between the earth and sand 152 and the water 154 constituting the mixed fluid 150. If the mixed fluid 150 continues to be introduced into the container body 102 thereafter, the liquid level of the separated water 154 gradually reaches the height of the discharge port 106. When the liquid level reaches the height of the discharge port 106, the separated water 154 overflows to the outside through the discharge port 106. The overflowed water has the earth and sand 152 completely or largely removed as compared with the mixed fluid 150 before being introduced into the first inlet 104. Thus, water can be efficiently taken out by separating the earth and sand from the mixed fluid of earth and sand and water.

  Although the case where the separation apparatus 100 of the present invention is used alone has been described with reference to FIG. 3, the present invention is not necessarily limited to such use. For example, a plurality of separation devices according to the present invention are prepared, and the discharge port of one separation device is connected to the injection port of another separation device using an arbitrary tube or the like, and the discharge ports of the other separation devices are made the same. The separation accuracy of water taken out from the mixed fluid can be further improved by performing tandem-type connection using a plurality of separation devices that are connected to the inlet of another separation device.

  Furthermore, in the separation apparatus 100 of the present invention shown in FIGS. 1 to 3, the state where the inlet 104 is attached at a position higher than the outlet 106 has been described, but the present invention is not necessarily limited to such a configuration. . When separation from a more vigorous (high-speed) mixed fluid is required, the mounting height of the inlet may be provided below the mounting height of the discharge port (that is, the separation device 100 of FIG. 1). 1, the mixed fluid may be injected into the container main body 102 from the discharge port 106 side in FIG. 1, and water overflowed from the injection port 104 may be recovered.

  FIG. 4 is a schematic view of the separation device for explaining another example of the solid-liquid separation device of the present invention.

  The separation apparatus 200 shown in FIG. 4 includes a container main body 202, an inlet 204, and an outlet 206, and the material, size, mounting position, and the like thereof are the same as those described in the separation apparatus 100 shown in FIG. is there. In addition to these components, the separation device 200 of the present invention includes a detachable separation promoting cartridge 210 for promoting separation of the mixed fluid in the container main body 202.

  FIG. 5 is a perspective view schematically illustrating the separation promoting cartridge 210 loaded in the separation device 200 of the present invention shown in FIG. 4, and is a perspective view of the separation promoting cartridge 210.

  As shown in FIG. 5, the separation promoting cartridge 210 includes a partition wall 214 having an opening 212 at the center portion of the front side surface, and a discharge portion (not shown in FIG. 5) from the opening 212 via an inclined surface 216. And a communication channel (not shown in FIG. 5). The material of the separation promoting cartridge 210 is not particularly limited. For example, plastic (for example, polyethylene, polypropylene, polyurethane, and polyethylene terephthalate, or recycled plastic recycled from a product including these materials), metal (for example, steel, Tin, stainless steel, and aluminum). Each member constituting the separation promoting cartridge 210 may be made of a different material. Furthermore, a water-permeable material composed of a brush, a nonwoven fabric, a woven fabric, a knitted fabric, and a combination thereof may be bonded onto the inclined surface. By arranging such a water-permeable material on the inclined surface, water passes above the inclined surface, but water hardly flows near the surface of the inclined surface, and sediments such as earth and sand are on the inclined surface. It becomes easy to move down along. Due to the effect of reducing the flow rate of water due to the resistance of the inclined surface, the separation efficiency between sediment and water can be further increased.

  FIG. 6 is a cross-sectional view of the separation apparatus 200 of the present invention shown in FIG. 4, and is a cross-sectional view of the separation apparatus 200 in the B-B ′ direction.

  The outer edge of the partition wall 214 of the separation promoting cartridge 210 is provided in a shape that can substantially or completely contact the inner wall of the container body 202 except for the upper side. Since the partition wall 214 has such a shape, the inside of the container main body 202 can be divided into two (the first storage part 224 and the second storage part 226) by the partition wall 214.

  FIG. 7 is a longitudinal sectional view of the separation apparatus 200 of the present invention shown in FIG. 4, and is a sectional view of the separation apparatus 200 in the C-C ′ direction.

  As shown in FIG. 7, in the separation device 200, the height of the partition wall 214 of the separation promoting cartridge 210 is designed to be approximately equal to the internal height of the container body 202. The separation facilitating cartridge 210 also has a configuration in which the inside of the container main body 202 separated by the partition wall 214 communicates with each other by a channel 218 formed between the opening 212 and the discharge portion 222. Further, the channel 218 constitutes an inclined surface 216 set at a predetermined angle. Thereby, substances such as earth and sand are not easily moved to the discharge part 222 through the opening 212 of the separation promoting cartridge 210, that is, the first storage part 224 of the container body 202 through the partition wall 214 to the second storage part 226. It becomes more difficult to move to As a result, the mixed fluid sediment and water are separated, and only water passes through the opening 212, the channel 218, and the discharge portion 222 of the separation promoting cartridge 210, and the water separated from the discharge port 206 is discharged through the overflow. The In addition, the inclination angle (θ) of the inclined surface 216 provided in the separation promoting cartridge 210 is preferably an angle of 45 ° to 80 ° with respect to the horizontal direction, and more preferably 50 ° with respect to the horizontal direction. Has an angle of ~ 70 °. When the inclination angle (θ) satisfies such a range, the sediment and water can be substantially separated smoothly.

  Next, separation of sediment and water from a mixed fluid using the separation device 200 of the present invention shown in FIGS. 4, 6 and 7 will be described.

  FIG. 8 is a schematic cross-sectional view of the separation device for explaining a state where water and earth and sand are separated by passing a mixed fluid of earth and sand through the separation device of the present invention shown in FIG.

  In FIG. 8, the mixed fluid 150 is introduced into the container main body 202 through the inlet 204 of the separation device 200. The mixed fluid 150 once entering the container main body 202 is temporarily stored in the first storage portion 224 of the container main body 202 by the partition wall 214 of the separation promoting cartridge 210. During this storage, the earth and sand 152 and the water 154 are naturally separated due to the difference in specific gravity between the earth and sand 152 and the water 154 constituting the mixed fluid 150. The earth and sand 152 is deposited in the first storage unit 224. As the introduction of the mixed fluid 150 proceeds, the liquid level of the first reservoir 224 rises, and the separated water passes through the channel 218 from the opening 212 of the separation promoting cartridge 210 and exits the discharge part 222 to be discharged from the container body. It stores in the 2nd storage part 226 of 202. FIG. Even if a small amount of earth and sand remains in the water while the separated water passes through the channel 218 of the separation promoting cartridge 210, the earth and sand 152 can be easily separated by the inclined surface 216 of the channel 218. Can not be moved, and the accumulation of earth and sand in the second reservoir 226 is suppressed. Further, the separated water is stored in the second storage unit 226, and while the liquid level rises, a trace amount of earth and sand 152 is further deposited on the bottom of the second storage unit 226 due to the difference in specific gravity. Further, when the liquid level of the second reservoir 226 reaches the height of the discharge port 226, the separated water is discharged through the discharge port 226 by overflow. Thus, water can be taken out more efficiently by separating the earth and sand from the mixed fluid of earth and sand and water.

  In the solid-liquid separator of the present invention, the form of the separation promoting cartridge is not necessarily limited to the above.

  FIG. 9 is a cross-sectional view of the separation device for explaining still another example of the solid-liquid separation device of the present invention.

  A separation apparatus 300 shown in FIG. 9 includes a container main body 302, an inlet 304, and an outlet 306. The material, size, mounting position, and the like of these are the same as those described in the separation apparatus 100 shown in FIG. is there. In addition to these components, the separation device 300 of the present invention includes a detachable separation promoting cartridge 310 for promoting separation of the mixed fluid in the container main body 302. The separation promoting cartridge 310 is also made of the same material as the cartridge 210 shown in FIG.

  The separation promoting cartridge 310 shown in FIG. 9 has a shape of an open container composed of two partitions (first partition 312 and second partition 314), and the outer edges of the partitions 312, 314 are respectively Except for the upper side, it is provided in a shape that can substantially or completely contact the inner wall of the container body 302. Since the partition wall 214 has such a shape, the interior of the container main body 202 is divided into three parts, a first storage part 324, a second storage part 326, and a third storage part 328, by the partition walls 312 and 314. can do.

  The first partition 312 and the second partition 314 of the separation promoting cartridge 310 are also designed so that the length in the height direction is shorter than the height of the container main body 302, and preferably the upper side of the first partition 312 is The upper side of the second partition 314 is designed to be lower than the upper side of the first partition 312 so as to be lower than the mounting height of the injection port 304. By satisfying such a relationship, the mixed fluid introduced from the inlet 304 is temporarily stored in the first reservoir 324. During this storage, the soil and water are naturally separated due to the difference in specific gravity between the soil and water constituting the mixed fluid. And earth and sand are deposited in the first reservoir 324. Next, as the introduction of the mixed fluid proceeds, the liquid level of the first reservoir 324 rises, and finally the water overflows the first partition 312. The overflowed water is stored in the second storage unit 326. And while the overflowed water is stored in the 2nd storage part 326, the trace amount earth and sand contained in water accumulates on the bottom part of the 2nd storage part 326 by specific gravity difference. Thereafter, the liquid level of the second reservoir 326 rises, and finally water overflows from the second partition 314 and is stored in the third reservoir 328. Further, while the overflowed water is stored in the third storage portion 328, a much smaller amount of earth and sand accumulates at the bottom, and finally only clean water is discharged to the outside through the discharge port 306 due to overflow. Thus, water can be taken out more efficiently by separating the earth and sand from the mixed fluid of earth and sand and water.

  FIG. 10 is a cross-sectional view of the separation device for explaining still another example of the solid-liquid separation device of the present invention, wherein (a) includes a funnel-type separation promoting cartridge in the container body, and FIG. It is a schematic diagram for demonstrating the state from which the water permeability of a type | mold separation promotion cartridge differs in a taper part and a liquid collection part, and (b) equips the container main body with the funnel type separation promotion cartridge, and the said funnel type separation promotion It is a schematic diagram for demonstrating the state in which the taper part and liquid collection part of a cartridge have substantially the same water permeability.

  10A and 10B includes a container main body 402, an inlet 404, and an outlet 406. The material, size, mounting position, and the like of these are shown in FIG. This is the same as that described in the separation apparatus 100.

  10A, the separation device 400 of the present invention includes a funnel-type separation promoting cartridge 410 in the container body 402 in addition to these components. The cartridge 410 has a tapered portion 414 made of a non-permeable material (for example, the above-described plastic or metal) and a water-permeable (for example, the above-described plastic or metal, and has a mesh shape or And a liquid collecting portion 416 provided with a plurality of pores. In the separation promoting cartridge 410 shown in FIG. 10A, the mixed fluid introduced from the inlet 404 into the container main body 402 gathers in the accumulation portion 416 through the tapered portion 414, where earth and sand and water are separated. Thereafter, the water separated by the rise of the liquid level in the container body 402 is discharged to the outside through the discharge port 406 due to overflow. Note that a water permeable material composed of a brush, a nonwoven fabric, a woven fabric, a knitted fabric, and a combination thereof may be bonded to the surface (filtering surface) of the tapered portion 414. Since such a water-permeable material is arranged on the tapered portion 414, water passes above the tapered portion 414, but water hardly flows near the surface of the tapered portion 414 and sediments such as earth and sand are not present. It becomes easy to move downward along the tapered portion 414. Due to the effect of mitigating the flow rate of water due to the resistance of the tapered portion, the separation efficiency between earth and sand can be further increased.

  On the other hand, the separation device 400 ′ according to the present invention shown in FIG. 10B includes a funnel type separation promoting cartridge 418 in which a tapered portion and a liquid collecting portion are integrally formed of the same material. The cartridge 418 has water permeability (for example, made of the above-described plastic or metal and has a mesh shape or a plurality of pores). In the separation device 400 ′ of the present invention, the water separated by the rise of the liquid level in the container main body 402 is discharged to the outside through the discharge port 406 due to overflow.

  FIG. 11 is a cross-sectional view of the separation apparatus for explaining still another example of the solid-liquid separation apparatus of the present invention, and is permeable to water (for example, mesh-shaped or a plurality of fine pieces). It is a schematic diagram of the said separator for demonstrating the separator provided with the inner container further provided with the hole.

  A solid-liquid separation apparatus 500 of the present invention shown in FIG. 11 includes a container main body 502, an inlet 504, and an outlet 506. The material, size, mounting position, and the like are described in the separator 100 shown in FIG. It is the same as that. Furthermore, in addition to these components, the separation device 500 of the present invention includes a water-permeable separation container 510 that can be in close contact with the inner wall of the container body 502 in the container body 502.

  The separation container 510 is a container whose upper side is opened, and an injection hole 514 is provided at a position corresponding to a part communicating with the injection port 504 of the container body 502, and a part communicating with the discharge port 506 of the container body 502. A discharge hole 516 is provided at a corresponding position. The separation container 510 is also provided with a handle 520 having an arbitrary shape above.

  In the separation apparatus 500 of the present invention, a separation promoting cartridge 210 as shown in FIG. 4 may be provided inside the separation container 510, for example.

  The separation apparatus 500 of the present invention can separate the earth and sand from the mixed fluid and discharge water from the discharge port 506 in the same manner as the above-described separation apparatus of the present invention. The separated earth and sand can be easily taken out from the separation device 500 by pulling out the separation container 510 with the handle 520. Thereafter, the removed earth and sand can be disposed of in accordance with a predetermined waste standard. Then, by accommodating the separation container 510 in the container body 502 again, the separation device 500 of the present invention can be used repeatedly, for example, with the inlet 504 and the outlet 506 connected to other pipes. .

  The solid-liquid separator of the present invention can easily separate earth and sand from a mixed fluid of earth and sand and water. As a result, only cleaner water can be separated and taken out. The solid-liquid separation device of the present invention can remove soil and sand that are more likely to accumulate radioactive materials from a mixed fluid of soil and water in soil contaminated by radioactive cesium and radioactive iodine, so that large-scale equipment For example, an agricultural worker can secure safer agricultural water from rivers and lakes. From such a point, for example, it is useful in the agricultural field in general.

100, 200, 300, 400, 400 ′, 500 Solid-liquid separator 102, 202, 302, 402, 502 Container body 104, 204, 304, 404, 504 Inlet port 106, 206, 306, 406, 506 Outlet port 210 , 310, 410, 418 Separation promoting cartridge
212 Opening 214 Partition 216 Inclined surface 218 Channel 224, 324 First reservoir 226, 326 Second reservoir 312 First partition 314 Second partition 328 Third reservoir 414 Taper 416 Liquid collector 510 Separation vessel 514 Injection hole 516 Discharge hole 520 Handle

Claims (7)

A solid-liquid separation device for separating earth and sand from a mixed fluid of earth and sand, the container body having an open top, attached to a side portion of the container body, and inside the container body It has an inlet and outlet that communicate,
An apparatus in which the mounting height of the injection port and the mounting height of the discharge port in the container body are different.   The apparatus according to claim 1, wherein the inlet and the outlet are provided so as to face each other in the horizontal direction of the container body.   Provided inside the container body is a separation promoting cartridge comprising a partition wall capable of dividing the inside of the container body and having an opening at a central portion, and a channel communicating from the opening to the discharge portion via an inclined surface. The device according to claim 1 or 2, wherein   The apparatus according to claim 3, wherein the inclined surface in the separation promoting cartridge is inclined upward at an angle of 45 ° to 80 ° with respect to a horizontal direction.   The apparatus of Claim 3 or 4 with which the at least 1 sort (s) of water permeable material selected from the group which consists of a brush, a nonwoven fabric, a textile fabric, and a knitted material is arrange | positioned on the said inclined surface.   The separation facilitating cartridge is provided in a water permeable inner container that is accommodated in the container main body and is removable, and the inlet and the outlet of the container main body communicate with the water permeable inner container. A device according to any of claims 3 to 5.   The apparatus according to any one of claims 1 to 6, wherein the earth and sand are earth and sand contaminated with radioactive substances.

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