Culture pond system realizing rotational-flow dirt collection

Abstract

The invention relates to a culture pond system realizing rotational-flow dirt collection. The culture pond system comprises a circular or a regularly polygonal pond body, wherein the center of the pond body is tapered downwards to a certain extent; a rotational-flow dirt-collecting device is arranged at the bottom of the pond body and is provided with a motor, the motor drives a horizontal supporting rod to rotate, and one end of the supporting rod is connected with a propeller; the distance from the propeller to the bottom of the pond body is smaller than 1 m; a supporting column is arranged below the motor and fixedly connected with a dirt collecting tank, the dirt collecting tank collects solid particles and is communicated with a bottom particle discharge pipe, and sewage is discharged out of the pond body through the bottom particle discharge pipe; a clean water discharge pipe is arranged on the side wall of the pond body, and a water inlet pipe and an aeration oxygenation pipe are arranged in positions near the side wall of the pond body; upper-layer clean water discharged through the clean water discharge pipe accounts for 80%-90% of the total amount of discharged water and flows back to the pond body through the water inlet pipe after being purified by a water purifying system; sewage discharged through the bottom particle discharge pipe accounts for 10%-20% of the total amount of discharged water.

Description

technical field [0001] The invention relates to a culture pond system for swirling sewage collection, and belongs to the technical field of culture pond systems. Background technique [0002] Industrialized aquaculture ponds have the characteristics of land saving, energy saving, high efficiency, and emission reduction. In recent years, they have developed rapidly in Jiangsu, Zhejiang, Shandong and other places in my country. At present, industrialized aquaculture ponds are generally rectangular ponds. Water enters from one side and exits from the other. In the form of push flow, more fish feces are often deposited at the bottom of the aquaculture pond, resulting in serious pollution of the aquaculture water. [0003] First of all, for sewage collection, there is a high-level pond circulating water fish farming system in the prior art, which collects sewage by swirling with a surge machine. But the system has many shortcomings in actual operation. During the operation of th...

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Problems solved by technology

[0008] The technical problem to be solved in the present invention is: in the existing swirl sewage collection pond system, since the surge machine is in operation, it is easy to cause the exchange of the upper and lower water layers, and the rising water generated by the surrounding water of the surge machine will deposit the pond The feces and residual bait at the bottom are brought back to the water body, causing secondary pollution; all the sewage is discharged from the bottom, and it is difficult to separate and purify, which brings greater pressure to the purification facility; the aeration facility interferes more with the water flow. It is not conducive to the work of water discharge and circulation; the effect of forming swirl is poor, which is not conducive to water flow and water circulation; the speed of hydrocyclone in the middle of the pond is poor, and the effect of sewage collection is poor, especially when the fish breeding density is high. When the speed of hydrocyclone is low, it is difficult to remove feces and residual bait in high-density fish culture

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