JPS6212965B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a mixture of fish and water (hereinafter referred to as "fish water") supplied by a fish suction device such as a fish suction pump that can transport fish using water as a transport medium. The present invention relates to a fish water separator for separating fish water into fish water, and provides a device that can perform stable and efficient fish water separation over a long period of time by preventing deterioration of the separation function due to clogging and the like.

As this type of fish water separation device, a fish water separation plate as shown in FIG. 1 has been widely used. The long members 6 are extended in parallel and are installed diagonally so as to maintain a downward slope in the extending direction, and the lower portions of each elongated member 6 are connected and integrated by connecting members 5 disposed in an orthogonal shape. structure is common.

By the way, in order to separate fish from water, it is necessary not only to simply separate the fish body from the water, but also to reliably separate scales that have come off from the fish body, and to avoid clogging caused by scales. However, there is a need for a structure that can avoid problems such as damage to the fish body.

In this respect, the example shown in FIG.
Since the scales fall together with water from the rectangular holes formed by the scales, the scales are constantly cleaned and can be used continuously for long periods of time without any problems.

However, in this case, it can only be used when the fish water slides down the descending slope separation plate at high speed, and problems arise when the slope becomes gentle.

In addition, as shown in Figure 2, in a structure in which the fish water is temporarily stored in the container 7 and a separation plate 8 is provided on the side surface to separate the fish water, the fish water can be separated in the same way as shown in Figure 1. It has been confirmed in practical terms that even if a separation plate is used as the separation plate 8, it will hardly be able to perform its original function, and it has also been clarified after numerous experiments.

In other words, water and some scales of the supplied fish water are separated from the fish by the separation plate 8, and are discharged from the drain port 9 on the left side, but the water and some scales are gradually separated within the first few tens of seconds. As a result of repeated experiments, it became clear that the water passing through the plate suddenly decreased, and the difference H between the water surface level in the container 7 and the level in the drain tank 10 increased, and that the separation plate behaved like a partition plate.

The reason why such a phenomenon occurs can be said to be due to the following reasons.

In FIG. 3, the peeled scales 11 flow into the separation member 6 of the separation device in an irregular direction, and the flaky scales follow the water flow toward the water passage 3 formed between the separation members 6. Items that flow in a planar shape will pass along with the water without any problems, but items that flow in a planar shape that blocks the water flow will be resisted by the separating member 6 and will take a long time to pass through. Therefore, they are pushed by the scales that flow one after another, and as a result, the following scales are also aligned in a raised position, that is, in a posture that blocks the water passage, and they intertwine with each other, thus causing the scales to disappear in an instant. The water-impermeable laminated plate body is formed in close contact with the fish compartment side of the separation plate.

According to actual measurements, the thickness of this plate is 5 to 15
It was found that the fish grew to a size of m/m and was further compressed by the water pressure in the fish room, resulting in even worse water permeability. Moreover, it was confirmed that even after removing this plate, the same phenomenon repeatedly occurred several minutes later.

If the fish is large enough and there is a clear difference in size between the fish and its scales, the area of the water opening should be made as large as possible so that the fish does not pass through, but the scales are perpendicular to the water flow. It is possible to pass through scales in an upright state with the largest area without difficulty, and the above-mentioned problem is solved.

However, for small fish, especially sardines, the area of the scales is not as small as the cross-sectional area of the fish body, so if you provide a water opening that is large enough for the scales to pass through easily even when the scales are upright, even the relatively small fish itself can pass through. I did it,
Therefore, if you prevent fish bodies from passing through, it will become clogged with scales, while if you try to clear the clog, some fish bodies will pass through, creating a contradiction, and the original fish-water separation function cannot be fully achieved. The shortcomings were not resolved.

In view of this current situation, the present invention provides a novel fish water separation device that allows flaky scales to pass through together with water without difficulty, while not allowing any small fish to pass through. Furthermore, it has been made possible to stably and permanently exhibit the fish-water separation function.

However, in the course of the above-mentioned experiments, the present inventor found that by removing the scales that had accumulated and entangled in the fish water separator, the water permeability was instantly improved, but the scales were accumulated in the fish water separator again. As a result of a detailed study of the phenomenon, we found that the scales intervening between groups of fish that are housed in irregular positions in the container indicate that the fish themselves are not moving (the fish density is so high that the fish cannot move). Despite the large size of the water, we discovered that the water still passes between the fish bodies and reaches the fish water separator.

Based on this fact, if a fish-water separation member with a cross-sectional structure similar to the cross-sectional structure of a densely populated area of fish is used, water and scales can pass through smoothly and continuously without allowing the fish themselves to pass through. We have come to the conclusion that this is possible, and have completed the present invention.

The specific contents of the present invention will be explained in detail below with reference to the accompanying drawings.

Each example of the device of the present invention is shown in FIG. 4 to FIG. 18, and the basic structure of the device is formed between a guiding member 1, a resistance member 2, and both members 1 and 2. The guide member 1 and the resistance member 2 are both elongated bodies and are arranged alternately in parallel.

With both the members 1 and 2 arranged in parallel in this way, a rectangular water passage port 3 that allows water and scales to pass through without allowing the fish body to pass through the members 1 and 2.
It is open between the two.

In the separation device having the above-described structure, the guiding member 1 and the resistance member 2 are the members that characterize the present invention, and the guiding member 1 is connected to the edge of one long side of the water inlet 3 and It has a guide surface that guides it toward the water inlet 3, while the resistance member 2 is guided toward the water inlet 3.
A resistance surface that is connected to the other long side edge of the guide surface and faces the water flowing toward the water inlet 3 is located between the guide surfaces near the downstream end thereof.

The guide member 1 functions to cause the water to flow toward the water outlet 3 in a laminar flow and to break up the entanglement of the scales, while the resistance member 2 functions to align the scales in a posture that facilitates flow from the water outlet 3. By performing these two functions together, scales in particular can be smoothly discharged from the water passage port 3 without clogging.

Each example of a fish water separator having such a configuration will be explained one by one with reference to the drawings. In the one shown in FIG. 4, the guiding members 1 are long plates arranged in parallel facing each other. On the other hand, the resistance member 2 is a long round bar interposed on the downstream side between the guide members 1, 1, and the individual scales whose entanglement is separated by the guide member 1 are connected to the resistance member 2. As a result of contacting and restricting the posture to a substantially horizontal position along the water flow, the water passes smoothly through the relatively narrow water inlet 3 and is discharged.

In this case, even if a fish body were to be interposed between the guide members 1, 1, there would be no problem in passing the scales.

The fish water separator shown in FIGS. 5 and 6 is constructed from a single flat plate, which is formed into a shutter-like plate by pressing. The planar portion of each armor plate portion is used as a guide member 1, and the cut-and-raised side edge portion is used as a resistance member 2.

This example has a structure in which both the members 1 and 2 are integrated, and has the practical advantage of being easy to manufacture.
The functions of both members 1 and 2 are similar to those shown in FIG.

Next, the example shown in FIGS. 7 and 8 is shown in FIG.
Similar to the example shown in Fig. 6, it is formed into a plate resembling a shutter by press processing, and the cut-and-raised portions are arranged intermittently, and the cut-and-raised shape has parallel surfaces. There are water holes 3 on both sides of the cut-out part.
3 is opened, and both side edges are connected to the resistance members 2, 2.
In addition, the flat plate surface portion is utilized as the guiding member 1.

When disposed in the vertical direction as shown in Figure 7, both members 1 and 2 are naturally oriented vertically, and the inlet 4 leading to the water inlet 3 is also opened horizontally in the vertical direction. There is an advantage in that when the fish body that has been washed down sinks downward, it is not subjected to any resistance and damage to the fish body can be prevented as much as possible.

Of course, this example can also be used in a horizontally installed form as shown in FIG.

FIG. 10 shows a structure in which the guiding member 1 and the resisting member 2 are arranged in a staggered manner using round rods having the same diameter, and the resisting member 2 is arranged slightly shifted to the downstream side with respect to the guiding member 1.

The water inlet 3 only needs to have a width w sufficient to easily pass through the scales when they flow in with their surfaces aligned with the water flow, and between the guide members 1 and 1. Even if the formed width W is a size that allows a fish body to pass through, it does not interfere with the fish water separation function.

On the other hand, the one shown in FIGS. 11 and 12 is similar to the above example in that both members 1 and 2 are round bars, but the resistance member 2 is a round bar with a smaller diameter than the guiding member 1. , both members 1 and 2 are arranged in a plane so as to be on the same surface outside the water inlet 3, and are connected by a connecting member 5 to form a ``slatted'' shape.

This example has the advantage that it is easy to manufacture and can be provided at low cost.

In the examples shown in FIGS. 10 and 11, it is desirable that the width W of the inlet 4 formed by the adjacent guide members 1, 1 is equal to or larger than the maximum length of the scales, but it is not always necessary. However, the present invention is not limited to this, and even if the scales become entangled and form a sheet, if the width W has a certain dimension, the sheet-like object will be divided by water pressure.
Appropriate dimensions can be selected in consideration of the water flow and water pressure level at the inlet 4.

13 and 14, respectively, are modified examples in which the L-shaped plates are arranged in a stacked manner so as not to be in close contact with each other. Another feature is that the downstream side in the hanging direction functions as the resistance member 2, and each plate serves as both members 1 and 2.

Furthermore, the ones shown in FIGS. 15 to 18 are examples in which both members 1 and 2 are formed of flat plates, and the arrangement form of each is devised,
Needless to say, both have the same separation function as each of the above-mentioned examples.

As has been made clear through the explanations of the above examples, the present invention comprises a fish water separator comprising both the guiding member 1 and the resisting member 2, and a rectangular water passage 3 formed therebetween. The guiding member 1 serves to regulate the direction of water passage and to break up the entanglement of scales, while the resisting member 2 serves to align the scales in a posture that allows them to easily pass through the water passage port 3. Therefore, the function of separating fish water into fish, water, and scales can be achieved stably and reliably by eliminating undesirable phenomena such as scales accumulating on the inlet side and blocking the water inlet 3 and blocking the passage of water. It is efficiently performed.

In this way, the conventional problem of having to clean repeatedly due to clogging can be solved at once by implementing the device of the present invention, resulting in excellent practical effects.

Moreover, the device of the present invention has a simple structure and is easy to manufacture, and the cost of the device is comparable to that of the conventional "slatted" type separator. This is a fish water separator.

[Brief explanation of the drawing]

Figures 1 and 2 are schematic structural diagrams of a device using a conventional fish water separation plate, Figure 3 is a sectional view of a conventional fish water separation plate, Figures 4 and 5, Figure 7, and Figure 1.
FIG. 0, FIG. 11, FIG. 13 to FIG. 18 are cross-sectional structural views of each example of the device of the present invention, and FIG.
8 is a perspective view of the example of the device shown in FIG. 7, FIG. 9 is a sectional view showing another usage of the example of the device shown in FIG. FIG. 11 is a perspective view of the example device shown in FIG. DESCRIPTION OF SYMBOLS 1... Guidance member, 2... Resistance member, 3... Water inlet, 4... Inflow port, 5... Connection member.

Claims (1)

[Scope of Claims] 1. Long guiding members and resisting members are arranged alternately and in parallel, and a rectangular water passage through which water and scales can pass while not allowing fish bodies to pass through is provided in both members. The guiding member has a guide surface that guides the water toward the water port and is connected to the edge of one long side of the water port, while the resistance member has a guide surface that guides the water toward the water port, while the resistance member has a guiding surface that guides water toward the water port. A fish water separator characterized in that a facing resistance surface is provided near the downstream end of the guiding member and connected to the other long side edge of the water inlet. 2. The fish water separator according to claim 1, wherein the guiding member and the resisting member are each round rods, and are arranged in a staggered manner with the former on the upstream side and the latter on the downstream side. 3. The fish water separator according to claim 1, wherein the guiding member and the resisting member are each round rods, and the former has a larger diameter than the latter. 4. The fish water separator according to claim 1, wherein the guiding member is a flat plate and the resisting member is a round bar. 5. The fish water according to claim 1, wherein the guiding member and the resisting member are flat plates arranged in parallel facing each other, and the resisting member is formed to have a shorter depth in the water flow direction than the guiding member. Separation device. 6. The flat portion of each shutter plate portion of the shutter-like plate obtained by press processing from a flat plate forms a guide member, and the cut-up side edge portion forms a resistance member, as set forth in claim 1. fish water separator.