Automatic sewage discharge device for cyclic flowing water aquaculture in pond

Abstract

The invention discloses an automatic sewage discharge device for cyclic flowing water aquaculture in a pond. The automatic sewage discharge device comprises a sewage collection area; a desilting water pump is mounted above the sewage collection area; proximity switches are mounted on two side walls of the sewage collection area respectively; a water inlet pipe of the desilting water pump is freely movably inserted in the sewage collection area; a water outlet pipe of the desilting water pump is inserted into a sedimentation tank on one side of the sewage collection area, and the sedimentation tank is connected with a coarse sand filter tank through a through hole in the upper portion of a partition wall of the sedimentation tank; the coarse sand filter tank is connected with a fine sand filter tank through a through hole in the upper portion of a partition wall of the coarse sand filter tank; the fine sand filter tank is connected with a nitrifying tank through a through hole in the upper portion of a partition wall of the fine sand filter tank; the nitrifying tank is connected with the external pond through a through hole in the upper portion of a partition wall of the nitrifying tank. The automatic sewage discharge device is suitable for multi-variety multi-specification aquaculture, balanced marketing can be realized, capital turnover speed is increased, and production cost can be reduced by 35%; 75% of fish metabolites and residual feeds can be collected effectively, and intrinsic virtuous cycle of the pond is guaranteed.

Description

technical field [0001] The invention belongs to the technical field of fish farming, and in particular relates to an automatic sewage discharge device for circulating water farming in a pond. Background technique [0002] As the world population continues to increase, water resources will soon become a limiting factor for many industries, the nutritional cost of food production will further increase, the demand for high-quality aquatic products in Southeast Asian countries will increase significantly, and the fishing industry will maintain the status quo Or a downward trend, farmed aquatic products will occupy the main market. At the same time, the cost of water for agriculture, especially aquaculture, increases and the pressure on the environment increases. [0003] The biggest challenge of agricultural production in the 21st century is to use less resources to produce 3 times more products. The World Bank's Global Fisheries Program - 2030 Fisheries Project initially prop...

AI Technical Summary

Problems solved by technology

[0010] The purpose of the present invention is to provide an automatic sewage discharge device for circulating water culture in ponds, which aims to solve the problem that the existing technology cannot strengthen the management of water, soil, energy and nutrients in water, and cannot flush fish feces downstream for collection and removal. , both floating and sinking solids cannot be automatically removed, which cannot produce higher efficiency and profit problems

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