A double-arc continuous concentrated sewage discharge device and method for a shrimp farming system

Abstract

The invention discloses a double-arc continuous concentrated sewage discharge device and method for a shrimp farming system, which is characterized in that it comprises at least two symmetrically arranged sewage collection pipes, the open end of the sewage collection pipes is located at the center of the bottom of the culture pond, and the sewage collection pipes are close to the cultivation One end of the pool wall communicates with the bottom of the airlift pipe, and a horizontal pipe connected to the airlift pipe is arranged between the two airlift pipes and on the water surface of the culture pond. A detachable thick arc-shaped screen with curved horizontal tubes. Long holes are arranged on the tube wall of the horizontal tube and located in the area of ​​the thick arc-shaped screen. Slot, under the thick curved screen, there is a detachable thin curved screen for filtering the water filtered by the thick curved screen. Shrimp shells, dead shrimp, and sick shrimp with poor vitality are discharged after concentrating residual bait and feces, and greatly reducing the water consumption of sewage.

Description

technical field [0001] The invention belongs to the technical field of aquaculture, and in particular relates to a double-arc continuous concentrating sewage discharge device and method for a shrimp breeding system. Background technique [0002] In the shrimp farming system, in order to ensure that the farming system maintains a good water quality environment, it is necessary to promptly discharge the residues of bait, manure, shrimp shells, dead shrimp and other pollutants out of the farming system. The basic form of the shrimp aquaculture sewage system is to promote the rotation of the water flow, so that all kinds of sewage are collected near the sewage outlet in the center of the bottom of the pot, and then under the action of the water pressure difference, the sewage is discharged from the aquaculture system through the sewage pipe. It is necessary to set up anti-escape nets at the sewage outlet to prevent live shrimp from being discharged, but at the same time, it also...

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Problems solved by technology

The devices proposed by these two inventions can collect shrimp shells, dead shrimp, and diseased shrimp with poor vigor to prevent overflow and escape of shrimp, but the overall structure of the sewage collector is relatively complicated, and residual bait and feces need to be connected to subsequent separation The device is further separated and processed, and can only be used in a circulating aquaculture system. A series of auxiliary equipment such as water pumps are needed in the follow-up, and the input cost and energy consumption are high, which is difficult for ordinary farmers to bear.

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