A kind of eel factory farming system

Abstract

The invention belongs to the field of ocean fish aquaculture, and particularly relates to an industrial aquaculture system for sea eels. The industrial aquaculture system comprises an aquaculture pond device and a purification device. The purification device comprises a main pipe and at least two filtering layers wound around the periphery of the main pipe. The main pipe is vertically buried under the earth surface, the upper end of the main pipe extends out of the earth surface, and each filtering layer is of a structure formed by arraying vertically placed multiple filtering pipes in sequence, wherein the cross section of the filtering layer is annular. The filtering layers are located under the earth surface and expanded outwards in sequence from the inner layers tightly attached to the main pipe. Multiple eyeholes are formed in the wall of the main pipe and the walls of the filtering pipes. The aquaculture pond device is formed by arraying multiple aquaculture ponds, a water inlet ditch is formed between every two adjacent aquaculture ponds and connected with a water inlet pipe, and a sewage drainage device is arranged in the middle of the bottom surface of each pond and communicated with a water drainage ditch. The four corners of each pond are chamfered, and the bottom of each pond is a bottom surface where the horizontal plane in the middle is higher than the horizontal plane of the edge. A steady flow from a clean water source can be provided for the sea eels, the good sewage drainage function of the aquaculture ponds is guaranteed, and the water resource cost is greatly lowered.

Description

technical field [0001] The invention relates to the field of marine fish culture, in particular to an eel culture system. Background technique [0002] Eels lay eggs and reproduce in the deep sea, grow in freshwater environment, the meat is tender, contain a lot of vitamin A, fat and protein, nutrition even exceeds that of chicken, it is an economic fish, can be raised artificially, but eels like to live in clean, free Polluted waters live in the purest aquatic organisms in the world. Therefore, the artificial breeding of eels has very high requirements for the cleanliness of the growth environment. However, there are some disadvantages in the existing eel factory farming system: [0003] 1. Due to the cost considerations of factory farming, the cleanliness of the water source itself is not high, or the water is recycled, and the filter with poor effect is used for coarse filtration, so it is difficult to ensure the cleanliness of the water, or to ensure the cleanliness of t...

AI Technical Summary

Problems solved by technology

[0003] 1. Due to the cost considerations of factory farming, the cleanliness of the water source itself is not high, or the water is recycled, and the filter with poor effect is used for coarse filtration, so it is difficult to ensure the cleanliness of the water, or to ensure the cleanliness of the water. The water quality is clean, but the cost is very high, which restricts the development of eel factory farming

[0004] 2. In the sewage discharge system in the existing breeding pond, there is a certain downward slope from the bottom of the pond to the sewage discharge hole, and the sewage is naturally collected to the sewage discharge hole according to the action of gravity, but the sewage discharge effect is poor, the sewage discharge time is too long, and the water consumption Larger; or use artificial driving to discharge sewage, or use other sewage collection devices, and the cost is very high

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