JP2005034124A - Circulation/filtration device for culturing water of fishes - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a circulation/filtration device for culturing water of fishes, without having unbalance in the flow of the culturing water within a filtering material, capable of extending the staying time of the culturing water within the filtering material in the filtration device of the culturing water of the fishes, exhibiting a good filtration efficiency and capable of performing a high degree filtration treatment. <P>SOLUTION: This circulation/filtration device for culturing water of the fishes is provided by installing a pump (1) for pumping up the culturing water at one end of a pipe, connecting a culturing water inlet port (2) and filtration vessel parts (3) with the pipe, installing a net state filtering material-supporting plate (8) at the upper and lower ends of inside of the filtration vessel part (3) and filling a filtering material (9). Each of the filtration vessel parts (3) is constituted so as to be connected with a lower precipitation vessel part (4) through an upper filtration vessel-connecting part (9) in a coil shape. A treated water outlet port (7) is installed at the one end of the rearest part of the filtration vessel part (3). At the one end of each of the precipitation vessels, a sludge-discharging port (5) and a sludge-discharging valve (6) are installed. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

Detailed Description of the Invention

Industrial application fields

The present invention is provided with a breeding water pump and a breeding water inlet at one end of the pipe, connected to the filtration tank section, and provided with a filter medium support plate at the upper and lower ends of the filter tank section, and between the upper and lower filter medium support plates. These pipes are connected in a coil shape via a lower sedimentation tank section and an upper filtration tank connecting section, and a treated water outlet is provided at one end of the last part of these filtration tank sections.
The present invention relates to a circulating filter device for fish breeding water, which allows the breeding water to pass through the filter medium in the filtration tank by a breeding water pump from the breeding water inlet, and to obtain efficient filtration and highly treated water. .

Conventionally, a filter medium is filled in a filter tank having a box shape and no depth. For this reason, the distance for breeding water to pass through the filter medium was short, and the retention time of the breeding water in the filter medium was also proportionally short. In addition, because the filtration tank has a large filtration cross-sectional area, the breeding water flows to one side and the breeding water does not flow inside the filter medium. The filtration ability could not be exhibited.

Problems to be solved by the invention

For this reason, the circulating filtration device for fish breeding water of the present invention optimally configures the filtration cross-sectional area of the filtration tank, prevents the breeding water from causing an uneven flow in the filtration tank, and requires a filtration tank section. Providing a circulating filtration device for fish breeding water that can increase the filtration distance by extending it accordingly, lengthen the residence time in the breeding water filtration tank, and obtain highly filtered water with high filtration efficiency It is an object.

Means for solving the problem

In order to achieve the above object, in the fish breeding water circulation filtration apparatus of the present invention, a breeding water inlet and a breeding water pump are provided at one end of the pipe, and a filter medium support plate is provided at the upper and lower ends inside the filtration tank. . A filter medium is filled between the upper and lower filter medium support plates, a precipitation tank section is provided below these pipes, and a filter tank connecting section is provided above them, and these are connected in a coil shape.
A sludge discharge port and a sludge discharge valve are provided at one end of each sedimentation tank, and sludge is discharged as necessary. The number and length of the filtration tank units are increased or decreased as necessary, and a treated water outlet is provided at one end of the last part of the filtration tank unit.
Feeding the breeding water to the breeding water inlet with a pump for raising the breeding water, and filtering by the biofilm filtration method using the filter medium in the filter tank.
The sludge outlet and the sludge discharge valve need not be provided because sludge is difficult to collect when the water flow is fast.
In addition, it is possible to obtain treated water with a large amount of dissolved oxygen by connecting an aeration apparatus to the treated water outlet.

Action

In order to achieve the above object, the circulating filtration device of the present invention determines the filtration cross-sectional area of the filter medium according to the inflow amount of the breeding water, and allows the breeding water to pass uniformly through the filter medium in the filtration tank section. Work to improve.
Further, if the number of filter tanks is increased, the residence time in the filter medium for breeding water can be lengthened, so that advanced filtration is possible.

The embodiment will be described with reference to the drawings. In FIG. 1, a breeding water pump (1) and a breeding water inlet (2) are provided at one end of the hype, and the upper and lower ends of the filter tank (3) are provided at the upper and lower ends. A net-like filter medium support plate (8) is attached. A filter medium (9) is filled between the upper and lower filter medium support plates (8).
These filtration tank parts (3) are connected via a lower sedimentation tank part (4.) and an upper filter tank connection part (10) to form a coil shape. A sludge discharge port (5) and a sludge discharge valve (6) are provided at one end of each sedimentation tank section (4). A treated water outlet (7) is connected to one end of the last part of the filtration tank. By adding the filtration tank (4), it works to obtain more advanced filtered water.

The invention's effect

Since the present invention is configured as described above, the following effects can be obtained.
Since the filtration tank part is formed in a coil shape via the precipitation tank part and the filtration tank connecting part, treated water according to the purpose can be obtained by increasing or decreasing the length or number of the filter tanks.
In addition, since the filtration cross-sectional area of the filtration tank can be configured to an appropriate size according to the amount of inflow water, the breeding water can flow uniformly over the entire filter medium of the filtration tank. From the above, the fish filtration water circulation filtration tank of the present invention enabled efficient use of the filter medium and advanced fish breeding water filtration.

Perspective view of a circulating filtration device for fish breeding water Partial cross-sectional view of a circulating filter for fish rearing water

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Breeding water pump 2 Breeding water inlet 3 Filtration tank part 4 Precipitation tank part 5 Sludge discharge port 6 Sludge discharge valve 7 Treated water outlet 8 Filter medium support plate 9 Filter medium 10 Filtration tank connection part

Claims (3)

A breeding water pump (1) is provided at one end of the pipe, and the breeding water inlet (2) and the filtration tank section (3) are connected. A filter medium support plate (8) is provided at the upper and lower ends inside the filter tank (3), and the filter medium is filled between the upper and lower filter medium support plates (8) to form a filter tank. To do. Each filtration tank section (3) is connected in a coil shape through a lower sedimentation tank section (4) and an upper filtration tank connection section (12). A circulating filter device for fish breeding water provided with a treated water outlet (7) at the other end of the filtration tank and a sludge outlet (5) and a sludge discharge valve (6) at one end of each settling tank. The circulating filter for fish breeding water according to claim 1, wherein the sludge discharge port (5) and the sludge discharge valve (6) are not attached. A circulating filter device for fish breeding water in which an aeration device is connected to the treated water outlet (7) of the circulating filter device for fish breeding water according to claims 1 and 2.

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