JPS61293328A - Sea bottom filth purifying apparatus in sea breeding basin - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application This invention relates to an apparatus for treating filth deposited on seabed sand in a marine culture pond for shrimps, crabs, etc.

Conventional technology Traditionally, when cultivating shrimp, crabs, etc. on the coast, sand was placed in a culture pond constructed with an embankment of an appropriate size, and seawater was circulated within the pond using the ebb and flow of seawater. The bait that has been cast accumulates in the sand and turns into sludge, or ammonia is generated when the bait is drained and shed its skin in the sand, so the sand is periodically pushed and stirred using a bulldozer using low tide. Or,
Alternatively, seawater is sprayed onto the sand using a pump to remove dirt from the sand.

Problems to be Solved by the Invention However, the above-mentioned filth treatment has disadvantages such as sewage being washed away into the external seawater, which is not suitable for cultivating yellowtail, sea bream, or pearls that are being cultured elsewhere. .

In order to solve these problems, the present invention aims to efficiently remove waste from the seabed by injecting high-pressure seawater onto the seabed sand in the aquaculture pond, stirring it and suspending the waste, and suctioning the floating material with a separate suction port. It is a device designed to remove seawater, and is characterized by the fact that it does not contaminate external seawater and can be used regardless of the ebb and flow of the seawater.

A foolproof way to solve problems Hereinafter, the present invention will be explained in detail with reference to embodiment figures.

A rectangular bucket 3 is formed in which the lower surface is open and left and right inclined plates 2a, 2b, front inclined plate 2C, etc. are connected from the top plate 1 at the rear center to both sides and the front, and the front inclined plate 2c is located near the front end. An injection tube 4 is attached to the inner surface, a large number of elongated injection holes 5 are opened at the oblique rear position of the lower surface of the injection tube 4, and an injection tube 6 is communicated with the injection tube 4 from the front inclined plate 2c. A shielding plate 7 is provided diagonally rearward on the inner surface of the front part, a hole is made in the top plate 1 to communicate the suction pipe 8, and a pair of left and right front mounting frames 9 are installed at the center of the front surface of the bucket 3. , 9, and a pair of left and right rear mounting frames 9/, 9/ at the center of the rear surface.
Fix the lower end of the front wheel 10, insert the bracket 11 of the front wheel 10 into the front mounting frames 9, 9 with the bolt pin 12, and insert the bracket 11' of the rear wheel 10' with the bolt pin 12' into the rear mounting frame 9/, g/. It is configured to constitute a seabed filth purification device 14 which is fixed in a height-adjustable manner and has arm fittings 13 and 13' protruding from both sides of the front surface of the bucket 3. In addition, 15 in the figure is a work boat, 16.16' is an armrest, and 17
is a discharge pump, 18 is an injection hose, 19 is a suction pump,
20 is a filter device, 21 is a suction hose, and 22 is a processing barge.

Functions and Effects The submarine filth purification device 14 according to the present invention comprises a pair of arm rods 16, 16' pivotally mounted on the bow of a work boat 15 in an aquaculture pond.
The tip of the injection hose 18 is connected to the arm fitting 13.13' of the bucket 3 of the submarine filth purification device 14, and the injection hose 18 extends from the seawater discharge pump 17 installed on the work boat 15.
is connected to the injection pipe 6, and the suction hose 21 extending from the filter device 20 communicated with the suction pump 19 is connected to the suction pipe 8, and the seabed filth purification device 14 is landed on the seabed in the aquaculture pond, and the work boat The seawater sucked in by the discharge pump 17 of 15 is passed through the injection hose 18 to the injection tube 4 in the bucket 3.
A device that blows up sludge and filth from the sand pile into the bucket 3 while spouting seawater at high pressure onto the sand on the seabed from a large number of elongated injection holes 5 opened at the rear of the lower surface of the injection tube 4 at high pressure. It is.

Then, sludge and filth are sucked into the filter device 20 along with seawater through the suction hose 21 by the suction negative pressure of the suction pump 19 acting on the suction pipe 8 communicating with the upper surface of the bucket 3 facing the shielding plate 7. Furthermore, the suction pump 19 discharges sludge and filth along with seawater into a filter-equipped treatment barge 22 towed to the stern of the work boat 15, and as the work boat 15 moves forward, the seabed filth purification device 14 moves forward together on the seabed. While doing so, it gradually sucks in and cleans the sludge and filth that have accumulated on the sand piles on the ocean floor. The bucket 3 is equipped with wheels 10, 10' on the front and rear, and the position of the bracket 11, 11' is adjusted within the mounting frame 9°9' depending on the condition of the seabed, so that the lower end of the bucket 3 does not touch the seabed. Even if the shrimps from the sand mountain splash out into the bucket 3 due to the injection of high-pressure seawater from the injection tube 4, they will not be sucked directly into the suction pipe 8 due to the shielding plate 7. Even if it were to be inhaled, the filter device 2o on the upper surface of the work boat 15 would catch it and prevent it from being directly inhaled into the suction pump 19.

As described above, the present invention is designed to remove dirt from the seabed within an aquaculture pond by agitating the sand with a jet of seawater, making it float, and then suctioning it. It has the remarkable effects mentioned above, such as being able to efficiently dispose of filth without contaminating the soil.

[Brief explanation of the drawing]

FIG. 1 is a front view of a seabed filth purification device according to an embodiment of the present invention, FIG. 2 is a sectional view taken along the line A-A, FIG. 3 is a plan view thereof, FIG. 4 is a right side view thereof, and FIG. The figure is a side view of the device in use when it is installed on a work boat, and FIG. 6 is a plan view thereof. 3 packets, 4 injection cylinders, 5 injection slots, 6 injection pipes, 7 shielding plates, 8 suction pipes, 10.10' front and rear wheels Figure 3

Claims (1)

[Claims] 1. An injection cylinder was attached to the inner surface of the bucket with an open bottom facing toward the front side in parallel with the front surface, and a number of elongated injection holes were drilled at the diagonal rear position of the bottom surface of the injection cylinder, and the upper surface of the bucket was connected to the injection cylinder. An injection pipe is provided protrudingly, a shielding plate is provided diagonally backward on the inner surface near the rear of the bucket, a suction pipe is provided in communication with the upper surface of the rear of the bucket, and a mounting frame is attached to the center position of the front and rear surfaces of the bucket.
A seabed filth purification device for a marine aquaculture pond, characterized in that brackets for front and rear wheels are fixed to the front and rear mounting frames in a vertically adjustable manner, and arm mounting brackets are protruded from positions near both sides of the front of the bucket.