Automatic dirt-removing method for indoor rectangular culture pond utilizing circulating water

Abstract

Provided is an automatic dirt-removing method for an indoor rectangular culture pond utilizing circulating water. The automatic dirt-removing method is characterized in that a baffle plate is arranged at the position, spacing from a pond side at the distance of 50 cm, of a water outlet end of the culture pond; the upper side of the baffle plate is the same as the culture pond in height; left and right sides of the baffle plate are matched with the wall of the culture pond for fixation; a gap is kept between the bottom of the baffle plate and a pond bottom; an inclined blocking net, used for preventing cultured organisms from getting stuck to the gap at the lower portion of the baffle plate, is arranged at the upper end of the baffle plate and the pond bottom on the side where the cultured organisms are present in the culture pond; a tapered dirt-collecting pond is constructed at the back portion of the culture pond and has the bottom having a dirt-discharge pipe and a dirt-discharge valve; after a circulating water system is started, circulating water flows at increased speed when flowing through the gap at the lower portion of the baffle plate; undercurrent is formed in the bottom of the culture pond; after sediments at the bottom of the culture pond are absorbed to the baffle plate along with undercurrent, large sediments entering the baffle plate are left around the dirt-discharge pipe and discharged out of the dirt-discharge valve; small sediments enter the tapered dirt-collecting pond behind the culture pond with water flow and are discharged out of a culture system by means of the dirt-discharge valve after sedimentation and concentration in the tapered dirt-collecting pond; and therefore automatic dirt-removing operation of the culture pond is achieved.

Description

Technical field [0001] The invention relates to a method for removing sediment in an indoor rectangular aquaculture pond. Background technique [0002] In indoor circulating water aquaculture ponds, as the cultivation time is extended, a large amount of organic sediments such as residual bait and feces will accumulate at the bottom of the cultivation pond. The long-term accumulation of these organic matter will produce a large amount of harmful substances such as ammonia nitrogen, nitroso nitrogen, sulfide, etc., which will damage water quality and adversely affect the growth and survival of aquaculture organisms. At present, the domestically designed circulating water aquaculture system, especially the rectangular reinforced concrete structure aquaculture pond, the bottom cleaning method mostly relies on the siphon method or the sewage suction of the whole pond, which consumes a lot of manpower and material resources. E.g. 15m 2 For aquaculture ponds, if the siphon method is us...

AI Technical Summary

Problems solved by technology

[0003] The object of the present invention is to invent an automatic cleaning method suitable for indoor rectangular circulating water aquaculture ponds. By changing the direction of the circulating water flow, the sediments covered with the bottom of the aquaculture pond are automatically collected to the sewage pipe outlet by hydraulic power to solve the problem of the bottom of the aquaculture pond. Too much sediment requires manual suction to cause time-consuming and labor-intensive problems

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