JPH0432057Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Field of Industrial Application) The present invention relates to an inlet moving device for collecting sludge deposited on the bottom of water such as seas, lakes, and swamps (hereinafter referred to as sea-lake bottoms).

(Conventional technology) In the case of a fish farm where fish farms are set up in the sea and fish are cultivated within an area divided by fish farming nets, the bottom of the water where uneaten food and fish feces settle is often exposed to other water bottoms. Naturally, compared to this, the amount of sludge deposited is significantly greater, contaminating the water quality and causing pollution such as seawater pollution and red tide.

Therefore, in the past, the sludge was collected by diving by an operator.

(Problems to be Solved by the Invention) However, when workers collect sludge by diving, the collection work is extremely troublesome, the workability is poor, and effective sludge collection is difficult. Therefore, there is a problem in that it cannot be expected to purify the sea lake bottom efficiently.

Therefore, it is possible to direct the inlet to the sludge that accumulates on the underside of the fish farming net, inhale the sludge, and collect the sludge on the boat, but in this case,
The question remains as to how to suck up the sludge from the underside of fish farming nets.

The present invention was developed in view of these problems, and is a method for moving the sludge inlet that does not require large-scale equipment, is therefore highly economical, and can purify the ocean and lake bottom easily and efficiently. The purpose is to provide equipment.

(Means for Solving the Problems) A sludge inlet moving device according to the present invention is provided with at least one sludge inlet movable in water, movable along opposing vertical surfaces of a fish farming net stretched in water. A pair of guide members, strings provided along these guide members so as to be able to be lifted and lowered, and a sludge suction port that is connected on both sides to the strings and that responds to the accumulated sludge on the lower side of the fish farming net by its own weight. The suction port is moved back and forth in a direction intersecting the vertical planes when the string is raised or lowered along the guide member, and the suction port is vertically moved when the guide member is moved along these vertical planes. It is configured to move in the surface width direction.

(Function) In the present invention, by raising and lowering the string along the guide member, the sludge suction port arranged to correspond to the accumulated sludge on the lower side of the fish farming net can be opened on the opposite vertical side of the fish farming net. By reciprocating in the cross direction and moving the guide member along the vertical surface, the sludge suction port is moved in the width direction of the vertical surface. That is, the sludge suction port can be moved vertically and horizontally under the fish farming net in response to the accumulated sludge.

(Example) Fig. 1 is an explanatory front view schematically showing an embodiment of the sludge suction port moving device according to the present invention, and Fig. 2 is a plan view thereof. In these figures, 1 is a fish farming net, 2, 2 is a guide member, 3, 3 is a string such as a wire or rope, and 4 is a sludge suction port.

The fish farming net 1 is stretched in the water with the top opening facing right, and a buoy 1A is attached to the circumference of the top end.
A plurality of weights 1B, 1B are suspended from the bottom surface 1a, and the sea lake bottom 5 is suspended by anchors 1C, 1C.
Fixed.

The guide members 2, 2 are made of poles made of synthetic resin or rust-proof metal pipes, and their lower ends are connected to the sea lake bed 5 near the outer sides of the opposing opposite side elevations 1b, 1a of the fish farming net 1. It stands upright when inserted, and its upper end extends above the water surface 6. A plurality of guide rings 2a, 2a, . . . are attached at predetermined intervals in the longitudinal direction.
The strings 3, 3 are provided so that they can be raised and lowered along the guide members 2, 2 through the guide rings 2a, 2a, that is, they can be moved up and down. In addition, string bodies 3, 3
The frying is carried out manually or by an automatic frying machine from a scaffold placed on the water surface 6 around the fish farming net or from two barges (both not shown).

The sludge suction port 4 is connected to the tips of the strings 3 and 3 on both sides thereof, and placed on the underside of the fish farming net 1.
The flexible tube 8 is disposed in an appropriately oriented attitude toward the deposition surface 7a of the accumulated sludge 7, and connects the tip of the flexible tube 8. The flexible tube 8 is connected to a sludge recovery pump (not shown) placed on the aforementioned scaffold or barge, and the discharge side of the sludge recovery pump is connected to a sludge filtration device (not shown).

Next, the operation will be explained. By moving the strings 3, 3 in the directions of arrows A and B by manual operation or the operation of an automatic frying/grating machine, the sludge suction port 4 can move beyond the stroke amount corresponding to the vertical distance l of the guides 2, 2. Elevations 1b and 1d in the fish farming net 1
It is moved back and forth in the intersecting direction (L1 and L2 directions in FIG. 2). Then, by moving the guide members 2, 2 at appropriate intervals along the elevations 1b, 1d of the fish farming net 1 and installing them upright on the sea lake bed 5, the sludge inlet 4 is opened in the width direction of the elevations 1b, 1d. (W1, W in Figure 2
move in two directions). That is, by performing the movement and setting operation of the guide members 2, 2 in combination and the lifting and lowering operation of the strings 3, 3, the sludge inlet 4 is moved to the surface 7a of the accumulated sludge 7 on the lower side of the fish farming net 1. It is moved vertically and horizontally in response to the Therefore, when the sludge recovery pump mentioned above is operated during this vertical and horizontal movement, the sludge 7 is sucked up from the sludge suction port 4 through the flexible pipe 8 to the sludge recovery pump, and is introduced into the sludge filtration device from here. Water and sludge are separated in the sludge filtration device, the dehydrated sludge is collected as waste in the sludge filtration device, and the filtered water is returned to the sea lake.

In the above embodiment, the guide members 2, 2 are made of synthetic resin or rust-proof metal tubes, but the guide members 2, 2 may be made of ropes with weights attached to the lower ends. Also, the same effect as in the above embodiment is achieved. In addition, although the explanation has been made using an example in which a pair of guide members 2, 2 facing each other is provided and the strings 3, 3 are provided so as to be able to be raised and lowered along these guide members 2, 2, the guide members 2, 2 Two or more pairs of guide members 2, 2 may be movably arranged upright, and strings 3, 3 may be provided along each of these guide members 2, 2 so as to be able to be raised or lowered.

(Effects of the invention) The present invention movably installs at least one pair of guide members along opposite vertical surfaces of a fish farming net stretched underwater, and allows fish farming to be raised and lowered separately along these guide members. In addition to providing a string, a sludge suction port is provided to handle the accumulated sludge on the lower side of the fish farming net by its own weight, and the string is connected to both sides of the sludge suction port, so that the string along the guide member is The sludge suction port is moved vertically and horizontally under the fish farming net in response to the accumulated sludge through cooperation between the lifting and grating and the movement of the guide member along the opposing vertical surfaces of the fish farming net. can be sucked up and collected. Therefore, although the accumulated sludge can be effectively and efficiently recovered in a relatively short period of time, the equipment does not become large-scale, and it has the advantage of being extremely economical.

[Brief explanation of drawings]

FIG. 1 is an explanatory front view schematically showing an embodiment of the present invention, and FIG. 2 is a plan view thereof. 1...Fish farming net, 1b, 1d...Elevation, 2...Guide member, 3...String, 4...Sludge inlet, 5
... Sea lake bed, 7... Sedimentary sludge.

Claims (1)

[Scope of utility model registration request] At least one pair of guide members erected in the water so as to be movable along opposite vertical surfaces of a fish farming net stretched in the water, and strings provided so as to be able to be lifted and lowered along each of these guide members. and a sludge suction port which is connected to the string on both sides and responds to the accumulated sludge on the lower side of the fish farming net by its own weight, and when the string is lifted up along the guide member, the suction port A moving device for a sludge suction port, characterized in that it is configured to be reciprocated in a direction that intersects the vertical surfaces, and also to move in the width direction of these vertical surfaces.