CN201905137U - Running water cultivating system under reservoir dam - Google Patents

Abstract

The utility model relates to a system for aquaculture under a reservoir dam, including a fish pond. An automatic bait feeding machine is set at 10-30 meters; a large net cage and a small net cage are arranged in the fish pond, and an automatic fish screening device is installed on the short side of the small net cage. Install a fish hanging platform on the side with convenient transportation, and install an electric fish hanging machine on the fish hanging platform. The automatic fish screening device is a rectangular fence welded by stainless steel pipes, and the distance between the fences is 4-4.3 cm. The automatic fish sifting device is directed towards the top of the water flow or the direction of the aerator. The fish hanging platform is made of wood or cement. Iron fences with a distance of 1 to 3 cm are installed at the water inlet. Iron fences with a spacing of 1 to 3 cm are installed at the drain outlet. The utility model saves manpower and material resources, and improves the survival rate of fish bodies during transportation.

Description

A kind of flowing water culture system under the reservoir dam

technical field

The utility model relates to a flowing water high-density aquaculture system, in particular to a flowing water aquaculture system under a reservoir dam, which belongs to the technical field of aquaculture.

Background technique

Tilapia is one of the main farmed fish in the world, and it is also the fish with the largest export volume in my country. It has become the agricultural pillar industry in southern my country and formed a relatively complete industrialized production pattern. The current farming methods of tilapia mainly include pond culture, cage culture and running water culture. Pond culture and cage culture are limited by the density of culture, and the output per unit water body is not high. Running water aquaculture refers to intensive high-density intensive aquaculture in artificially controlled water bodies, which is conducive to promoting water body exchange, increasing dissolved oxygen in water, enhancing fish metabolism and digestion and absorption functions, and appropriately increasing the amount of stocking can increase the unit Water production. Because tilapia belongs to the pelagic fish, it has the characteristics of strong adaptability, less disease, strong oxygen resistance and fast growth, so it is very suitable for running water aquaculture. However, currently existing tilapia farming in my country mainly utilizes hot spring water, residual hot water from power plants and running water from mountain ponds. Due to the limitation of scarce natural resources and the size of the flow, the area of the breeding pond is generally 30-50 square meters, and the overall economic benefits not tall. However, there are many small and medium-sized reservoirs and hydroelectric power stations in the southern part of my country. The flowing water under the reservoir dam has excellent conditions such as large flow rate, high dissolved oxygen, and fresh water quality. It is directly used for agricultural irrigation and does not make full use of water resources.

Contents of the invention

The purpose of the utility model is to overcome the deficiencies in the prior art and provide a system for aquaculture under a reservoir dam, which has high utilization rate of water body and high overall economic benefit.

According to the technical solution provided by the utility model, a flowing water aquaculture system under a reservoir dam, including a fish pond, is characterized in that: the fish pond is provided with 1 to 2 water inlets and a discharge outlet, and every 3 mu of fish ponds is equipped with 1 to 2 water outlets. 2 aeration machines, one automatic bait feeding machine is set every 10-30 meters; a large net cage and a small net cage are arranged in the fish pond, and an automatic fish screening device is installed on the short side of the small net cage. Install a fish hanging platform on the side of the pond with convenient transportation, and install an electric fish hanging machine on the fish hanging platform.

The automatic fish screening device is a rectangular fence of 1-2 meters x 2-3 meters welded by stainless steel pipes, and the distance between the fences is 4-4.3 centimeters.

The automatic fish sifting device is directed towards the top of the water flow or the direction of the aerator.

The said Diaoyutai is a platform made of wood or cement with a height of 1.6-2 meters, a length of 2.5-3.5 meters and a width of 2.5-3.5 meters.

1-2 iron fences with a distance of 1-3 cm are installed at the water inlet, the width of the iron fence is 5-15 meters, and the height from the bottom of the iron fence to the water surface is 1-1.5 meters. Two iron fences with a distance of 1 to 3 cm are installed at the drain outlet, the width of the iron fence is 2 to 3 meters, and the height from the bottom of the iron fence to the water surface is 0.6 to 1.5 meters. Cover the woven bag or plastic film on the iron fence.

The wall of the said fish pond is built with bricks or stones, the joints are plastered with cement mortar, the thickness is trapezoidal from bottom to top, and the bottom of the pond is leveled.

The utility model utilizes the characteristics of many medium and small reservoirs and hydroelectric power stations in southern my country. The flow of water under the reservoir dam is large, the dissolved oxygen is high, and the water quality is fresh. Fish ponds are built according to the topography. It is suitable for irrigating farmland, and fish feces can be used as fertilizer, so that one water can be used for multiple purposes, killing two birds with one stone. Large net cages are adopted for catching and listing, and the large net cages are transferred to small net cages for overnight training. The automatic fish screening device on the small net cages automatically catches the big fish and keeps the small ones. The electric fish hanging machine hangs the fish ashore, saving manpower and material resources, and improving The survival rate of fish bodies during transportation. Therefore, a method for high-density culture of tilapia in flowing water under a reservoir dam is provided with high utilization rate of water body, short cycle, 2-10 times increase in culture output compared with conventional culture, and high overall economic benefits.

Description of drawings

Fig. 1 is the structural representation of the utility model.

Fig. 2 is a schematic structural view of the automatic fish screening device of the present invention.

Detailed ways

Below in conjunction with specific accompanying drawing, the utility model is further described.

As shown in Figures 1 to 2: the breeding system includes water inlet 1, drain outlet 2, automatic bait feeding machine 3, aerator 4, large net cage 5, small net cage 6, fish hanging platform 7, and automatic fish screening device 8. Electric fish hanging machine 9, stainless steel pipe 10, etc.

The utility model comprises a fish pond. The walls of the fish pond are built with bricks or stones, and the cement mortar joints are plastered. The thickness is trapezoidal from bottom to top, and the bottom of the pond is leveled; Shuikou 1 and a discharge outlet 2, are equipped with 1～2 aeration machines 4 in fishpond, an automatic bait throwing machine 3 is set every 10～30 meters; Case 6, the short side one side of small net cage 6 is equipped with automatic fish screening device 8; Install fish hanging platform 7 on the convenient side pond side, and electric fish hanging machine 9 is set on hanging fish platform 7;

The automatic fish screening device 8 is a rectangular fence of 1-2 meters × 2-3 meters welded by stainless steel pipes 10, and the fence spacing is 4-4.3 centimeters;

Described automatic fish screening device 8 is towards the direction of water flow top or aeration machine 4;

The said Diaoyutai is a platform made of wood or cement with a height of 1.6-2 meters, a length of 2.5-3.5 meters and a width of 2.5-3.5 meters.

1 to 2 iron fences with a distance of 1 to 3 cm are installed at the water inlet 1, the width of the iron fence is 5 to 15 meters, and the height from the bottom of the iron fence to the water surface is 1 to 1.5 meters, so that the water flow is Adequate aeration and oxygenation;

2 iron fences with a distance of 1 to 3 centimeters are installed at the 2 outlets, the width of the iron fence is 2 to 3 meters, and the height from the bottom of the iron fence to the water surface is 0.6 to 1.5 meters;

Cover the woven bag or plastic film on the iron fence to adjust the size of the water flow.

The working process of the utility model: the fish pond is diverted by the water inlet 1, and the water outlet 2 and the water inlet 1 form a flowing water environment, and iron fences are provided at the water inlet 1 and the water outlet 2 to intercept dirt and prevent fish from escaping; When catching, adopt the mode of throwing a small amount of feed trapping in the large net cage 5 to catch; Drive the fish caught in the large net cage 5 into the small net cage 6 and exercise overnight; Automatic fish screening device 8 automatically screens the fish that do not meet the listed specifications, and the next day, the small net cage is supported to the bottom of the fish hanging platform 7 with bamboo poles, and the fish in the small net cage is removed by the electric fish hanging machine on the fish hanging platform 7. Buckets of fish are hoisted to the shore for listing.

Claims (7)

1. A flowing water aquaculture system under a reservoir dam, including a fish pond, characterized in that: the fish pond is provided with 1 to 2 water inlets (1) and a discharge outlet (2), and an aerator is arranged in the fish pond (4), an automatic bait feeding machine (3) is set every 10-30 meters; a large net cage (5) and a small net cage (6) are arranged in the fish pond, and one side of the small net cage (6) is equipped with There is an automatic fish screening device (8); a fish hanging platform (7) is installed on one side of the pond, and an electric fish hanging machine (9) is arranged on the fish hanging platform (7). 2. The flowing water aquaculture system under the reservoir dam according to claim 1, characterized in that: the automatic fish screening device (8) adopts stainless steel pipes (10) welded into rectangular fences, and the distance between the fences is 4-4.3 cm. 3. The flowing water aquaculture system under a reservoir dam as claimed in claim 1, characterized in that: said fish hanging platform (7) is made of wood or cement, with a height of 1.6-2 meters and a length of 2.5-2 meters. 3.5 meters; the width is 2.5 to 3.5 meters. 4. The flowing water aquaculture system under a reservoir dam as claimed in claim 1, characterized in that: 1-2 iron fences with a distance of 1-3 cm are installed at the water inlet (1), and the width of the iron fence is The height from the bottom of the iron fence to the water surface is 1 to 1.5 meters. 5. The flowing water aquaculture system under the reservoir dam according to claim 1, characterized in that: iron fences with a distance of 1 to 3 cm are installed at the outlet (2), and the width of the iron fence is 2 to 3 cm. meters, and the height from the bottom of the iron fence to the water surface is 0.6 to 1.5 meters. 6. The flowing water aquaculture system under a reservoir dam as claimed in claim 4, characterized in that: the iron fence is covered with a woven bag or a plastic film. 7. A kind of flowing water aquaculture system under a reservoir dam as claimed in claim 1, characterized in that: the wall of the fish pond is built with bricks or stones, and the joints are plastered with cement mortar, and the thickness from bottom to top is trapezoidal , the bottom of the pool is leveled.

Images