Flexible dewatering tub

Abstract

To provide a flexible dewatering bin that can be easily assembled on site where sludge has occurred, without installing a complicated mechanism for dehydration, is lightweight, and can be easily carried by hand.SOLUTION: A flexible dewatering bin 1 includes: a bag-like body composed of a woven fabric or nonwoven fabric that can discharge water dewatered from spaces of texture or net; and a flexible container stand 3 formed by oppositely connecting a stand on one side and a stand on the other side. The bag-like body is attached to the flexible container stand 3 by extending from inside the flexible container stand 3 to an upper part thereof, bending outside from the upper part of the flexible container stand 3, and hanging down outside the flexible container stand 3. A bottom part of the bag-like body is placed on a pallet 4 having an empty space through which water can pass from an upper part to a lower part thereof. A filtered water pool 5 capable of draining water is provided on the outer periphery of the pallet 4, below the flexible container stand 3 with the bag-like body attached thereto.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a flexible dewatering tank, and more particularly to a flexible dewatering tank that can be easily assembled at the site where sludge is generated, is lightweight, and can be easily carried by hand. [Background technology]

[0002] Patent Documents 1 and 2 disclose simple water treatment devices that can be assembled on-site. These devices include a sludge dewatering tank that transfers coagulated and settled sludge to a filter cloth using a pump and dewaters it by gravity. However, this sludge dewatering tank has the drawback that the sludge cannot be dewatered unless the sludge adhering to the surface of the filter cloth is removed. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Patent No. 6829450 [Patent Document 2] Patent No. 6829452 [Patent Document 3] Japanese Patent Application Publication No. 2018-154406 Summary of the Invention [Problem to be solved by the invention]

[0004] To solve this problem, Patent Document 3 proposes a method for making it easier to transport sludge by using flexible container bags. However, both technologies require a mechanism for transporting the flexible container bags and a pressing mechanism for dewatering, and the mechanisms are complex and heavy, making them difficult to assemble on-site.

[0005] To provide a flexible dewatering tank that can be easily assembled at the site where sludge is generated without installing a complicated mechanism for dewatering, and that is lightweight and can be easily carried by hand.

[0006] Furthermore, other objects of the present invention will become apparent from the following description. [Means for solving the problem]

[0007] The above problems are solved by the following inventions. (Claim 1) a bag-shaped body made of woven or nonwoven fabric capable of discharging dehydrated water through gaps in the weave or mesh; A flexible container stand is provided, in which one side stand and the other side stand are connected to face each other, The bag-like body is attached to the flexible container stand by folding it from the inside toward the top of the flexible container stand, then from the top of the flexible container stand toward the outside, and then hanging down the outside of the flexible container stand, The bottom of the bag-shaped body is placed on a pallet having at least a gap that allows water to pass from top to bottom, A flexible dewatering tank characterized in that a drainable drainage pool is provided on the outer periphery of the pallet below the flexible container stand to which the bag-shaped body is attached. (Claim 2) 2. The flexible dewatering tank according to claim 1, wherein the drainage pool is provided with a detachable drainage pump. (Claim 3) 3. The flexible dewatering tub according to claim 1, wherein the bag-shaped body is made of a woven or nonwoven fabric made of polyethylene or polypropylene. (Claim 4) One side stand of the flexible container stand comprises an upper semicircular loop steel pipe and a lower semicircular loop steel pipe, and a plurality of vertical steel pipes are arranged and fixed at predetermined intervals between the upper semicircular loop steel pipe and the lower semicircular loop steel pipe, The other stand of the flexible container stand is provided with an upper semicircular loop steel pipe and a lower semicircular loop steel pipe, and a plurality of vertical steel pipes are arranged and fixed at predetermined intervals between the upper semicircular loop steel pipe and the lower semicircular loop steel pipe, 4. The flexible dewatering tub according to claim 1, wherein the one-side stand and the other-side stand are connected to face each other. [Effects of the Invention]

[0008] According to the present invention, a flexible dewatering tub can be provided that can be easily assembled at the site of sludge generation without the need for a complex dewatering mechanism, and that is lightweight and easily portable by hand. In particular, the present invention provides a flexible dewatering tub that can continuously dewater sludge from the bottom of the flexible container without stopping the dewatering by placing the bottom of the bag-shaped body on a pallet that has a gap that allows water to pass from top to bottom. [Brief explanation of the drawings]

[0009] [Figure 1] FIG. 1 is a perspective view showing an example of a flexible dewatering tub of the present invention. [Figure 2] An exploded perspective view of the flexible dewatering tub of Figure 1 before assembly. [Figure 3] Side view showing the state at the start of spin-drying [Figure 4] Side view showing the progress of dehydration [Figure 5] A side view showing the state where the dehydrated sludge has been removed together with the flexible container after dehydration is complete. DETAILED DESCRIPTION OF THE INVENTION

[0010] Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings.

[0011] FIG. 1 is a perspective view showing an example of a flexible dewatering tub of the present invention, and FIG. 2 is an exploded perspective view of the flexible dewatering tub of FIG. 1 before assembly.

[0012] As shown in Fig. 2, parts for forming a flexible dewatering tank 1 are prepared. Such parts include a flexible container bag 2, a flexible container stand 3, a pallet 4, a drainage pool 5, and a drainage pump 6.

[0013] The flexible container bag 2 is a component for forming the bag-like body 200 shown in Fig. 1. The bag-like body 200 is preferably a flexible bag-like body that is flexible enough to allow dehydrated water to be discharged through gaps in the woven or mesh. The woven or nonwoven fabric is preferably made of polyethylene or polypropylene.

[0014] The flexible bag-shaped body 200 is a filter cloth that dehydrates sludge, and the filter cloth preferably has gaps (woven or mesh) that allow water to be discharged by the weight of the water column.

[0015] The flexible bag-shaped body 200 has gaps, and the size of the gaps is preferably in the range of about 0.2 to 0.5 mm.

[0016] Numeral 3 denotes a flexible container stand for forming a flexible bag-like body 200. The flexible container stand 3 is configured by connecting one side stand 3A and another side stand 3B facing each other.

[0017] One side stand 3A has an upper semicircular loop steel pipe 301 and a lower semicircular loop steel pipe 302, and multiple vertical steel pipes 303, 304, 305, 306, and 307 are arranged and fixed at predetermined intervals between the upper semicircular loop steel pipe 301 and the lower semicircular loop steel pipe 302.

[0018] The other stand 3B has an upper semicircular loop steel pipe 308 and a lower semicircular loop steel pipe 309, and multiple vertical steel pipes 310, 311, 312, 313, and 314 are arranged and fixed at predetermined intervals between the upper semicircular loop steel pipe 308 and the lower semicircular loop steel pipe 309.

[0019] The vertical steel pipes 303 and 310 are fixed with, for example, wire, etc., so that they can be opened when necessary. If they can be released in this way, it will be easy to remove the flexible container bag 2. In the present invention, it is preferable that the vertical steel pipes 303 and 310 are fixed with, for example, wire, while facing each other and in contact with each other, and are connected in a releasable manner.

[0020] The flexible container stand 3 preferably has an outer diameter of 500 to 1500 mm and a height of 500 to 1500 mm.

[0021] As the frame or vertical steel pipe, a cylindrical steel pipe is preferred from the viewpoint of weight reduction, and a diameter of, for example, 15 to 18 mmφ is preferred.

[0022] A method for attaching a flexible container bag 2 to a flexible container stand 3 as shown in FIG. 1 will be described. The flexible container stand 3 has a configuration as shown in FIG. 2, with a bag-shaped portion formed inside the flexible container stand 3 and a folded portion formed outside. That is, the bag-shaped body 200 is attached from the inside of the flexible container stand 3 toward the top. By attaching it in this way, a bag-shaped portion can be formed inside the flexible container stand 3. Then, it is attached from the top of the flexible container stand 3 toward the outside, and then the outside is attached downwards. This attachment on the outside is the formation of a folded portion. In this way, the attachment shown in Figure 1 can be achieved, and a room for dehydrating sludge is formed inside the flexible container stand 3.

[0023] The bottom of bag-shaped body 200 is placed on pallet 4, which has gaps 400 that allow water to pass from top to bottom. As sludge is placed into bag-shaped body 200, water is discharged to the outside through the gaps in the filter fabric that makes up bag-shaped body 200. The water discharged from the bottom of bag-shaped body 200 passes through gaps 400, which allow water to pass from top to bottom, and is discharged into filtration pool 5.

[0024] In the present invention, when the bottom of the bag-shaped body 200 is placed on the pallet 4, there is a risk that the dehydrated water will not be discharged to the outside due to the presence of the pallet, but since the pallet 4 has a gap 400 formed therein that allows water to pass from top to bottom, there is no hindrance to dehydration of the bag-shaped body 200.

[0025] Furthermore, it is preferable that the pallet 4 has a height that prevents the surface of water discharged to the outside through the gaps in the filter fabric from reaching the bottom of the bag-shaped body 200. By ensuring that the pallet 4 has such a height, there is an effect that dewatering from the bag-shaped body 200 is reliably carried out.

[0026] Although there is no particular limitation on the dewatering pool 5, a foldable pool is preferable. This can be easily assembled on-site or folded and carried, providing a flexible dewatering tank that is easy to work with on-site.

[0027] It is preferable that the water in the filtered water pool 5 be configured to be automatically drainable by providing a detachable drainage pump 6.

[0028] Next, the method of dehydration will be described. As shown in Figure 3, the bag-shaped body 200 is set. Specifically, the bag-shaped body 200 is placed on a pallet 4 installed in the center of the filtrate pool 5. There is space below the flexible container stand 3, so the bag-shaped body 200 can protrude downward from this space, and the protruding portion of the bag-shaped body 200 is placed on the pallet 4.

[0029] The pallet 4 has gaps 400 formed therein that allow water to pass from top to bottom, so that as dewatering progresses, the water discharged from the bag-shaped body passes through the gaps 400 and is stored in the filtered water pool 5.

[0030] When the filtered water reaches a certain level, a level sensor (not shown) detects it, the control unit receives the detection signal, and a start signal is sent to the drainage pump 6, which then starts operating and automatically drains the water.

[0031] Sludge to be dewatered is placed in the flexible dewatering tank 1. In Fig. 3, 100 indicates the sludge surface.

[0032] The dewatering will proceed if the container is left standing. The separated water is automatically drained by the drainage pump 6.

[0033] As shown in Figure 4, when the volume of sludge is reduced by dehydration, the sludge surface 100 drops. At this stage, the sludge remaining in the bag-shaped body 200 is highly concentrated (low moisture) sludge.

[0034] Fresh sludge is then placed into the bag 200 to continue dewatering.

[0035] By repeating the above dehydration, the dehydrated sludge accumulates in the bag-shaped body 200 as shown in Figure 5, and when the bag-shaped body 200 is full, the flexible container stand 3 is opened and the flexible container sludge is removed using heavy machinery or the like.

[0036] Thereafter, by setting a new bag-shaped body 200, the same dehydration as above can be carried out.

[0037] The flexible dewatering tank of the present invention can be easily assembled at various sites where sludge is generated without the need for a complex dewatering mechanism, and is lightweight and easily portable, making it easy for anyone to install. It can also be used, for example, as a dewatering tank in a simple wastewater treatment facility. Furthermore, the flexible dehydration tub before assembly is compact and does not require much storage space. [Explanation of symbols]

[0038] 1: Flexible dewatering tank 100: Sludge surface 2: Flexible container bag 200: Bag-like body 3: Flexible container stand 3A: One side stand 3B: Other side stand 301, 302: Semicircular loop steel pipe 303, 304, 305, 306, 307: Vertical steel pipe 308, 309: Semicircular loop steel pipe 310, 311, 312, 313, 314: Vertical steel pipe 4: Palette 400: Gap 5: Filtered pool 6: Drainage pump

Claims

1. a bag-shaped body made of woven or nonwoven fabric capable of discharging dehydrated water through gaps in the weave or mesh; A flexible container stand is provided, in which one side stand and the other side stand are connected to face each other, The bag-like body is attached to the flexible container stand by folding it from the inside toward the top of the flexible container stand, then from the top of the flexible container stand toward the outside, and then hanging down the outside of the flexible container stand, The bottom of the bag-shaped body is placed on the upper surface of a pallet having a gap that allows water to pass from the upper surface to the lower surface, A drainable drainage pool is provided below the flexible container stand to which the bag-shaped body is attached, By simply placing the bag-shaped body on the upper surface of the pallet, the sludge in the bag-shaped body is dehydrated without compressing the bag-shaped body from the outside, and the water dehydrated from the bag-shaped body is stored in the drainage pool. The upper surface of the pallet, on which the bag-shaped body is placed, and the lower surface of the pallet are A flexible dewatering tank characterized in that the drainage pool is separated by a distance corresponding to the length of a gap that allows water to pass from the upper surface to the lower surface, and the water surface of the drainage pool is at a height that does not reach the bottom of the bag-shaped body placed on the upper surface of the pallet.

2. 2. The flexible dewatering tank according to claim 1, wherein the drainage pool is provided with a detachable drainage pump.

3. 3. A flexible dewatering tub according to claim 1, wherein the bag-shaped body is made of a woven or nonwoven fabric made of polyethylene or polypropylene.

4. One side stand of the flexible container stand comprises an upper semicircular loop steel pipe and a lower semicircular loop steel pipe, and a plurality of vertical steel pipes are arranged and fixed at predetermined intervals between the upper semicircular loop steel pipe and the lower semicircular loop steel pipe, The other stand of the flexible container stand is provided with an upper semicircular loop steel pipe and a lower semicircular loop steel pipe, and a plurality of vertical steel pipes are arranged and fixed at predetermined intervals between the upper semicircular loop steel pipe and the lower semicircular loop steel pipe, 4. A flexible dewatering tub according to claim 1, wherein the one side stand and the other side stand are connected to face each other.

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