阅读说明：本技术 一种复合式稻田虾种养殖系统 (Combined type paddy field shrimp seed farming systems ) 是由 吴艳蓉 杜德新 李良玉 魏文燕 于 2018-06-15 设计创作，主要内容包括：本发明公开了一种复合式稻田虾种养殖系统,包括生活区和净水区,所述生活区包括生活池,所述生活池的进水口与净水区的出水口相连,生活池的排污口位于池底中央并与净水区的进水口通过管道相连,所述排污口上方设置有多层底框,所述多层底框上设置有底质。本发明的多层底框提供了对虾的埋栖空间,而且由于是多层结构,养殖过程中的污物不容易沉积在底质上,为对虾的生存提供了良好的环境,也方便清池捕虾,同时,养殖废水不直接向外界排放,而是在生活池和净水区之间不断循环利用,减少了养殖成本,更能响应国家环保的要求。本发明可应用于对虾养殖。(The invention discloses a compound type paddy field shrimp seed culture system which comprises a living area and a water purification area, wherein the living area comprises a living pond, a water inlet of the living pond is connected with a water outlet of the water purification area, a sewage discharge outlet of the living pond is positioned in the center of the bottom of the pond and is connected with a water inlet of the water purification area through a pipeline, a multilayer bottom frame is arranged above the sewage discharge outlet, and a substrate is arranged on the multilayer bottom frame. The multilayer bottom frame provides a space for burying and perching prawns, and due to the multilayer structure, dirt in the culture process is not easy to deposit on the substrate, so that a good environment is provided for the survival of the prawns, the pond cleaning and the shrimp catching are also convenient, meanwhile, the culture wastewater is not directly discharged to the outside, but is continuously recycled between the living pond and the water purification area, the culture cost is reduced, and the national environment-friendly requirement can be met. The invention can be applied to prawn culture.)

1. The utility model provides a combined type paddy field shrimp species farming systems, includes living area and water purification district, the living area is including living pond (1), the water inlet in living pond (1) links to each other with the delivery port in water purification district, and drain (2) in living pond (1) are located bottom of the pool central authorities and pass through the pipeline with the water inlet in water purification district and link to each other its characterized in that: a multilayer bottom frame (3) is arranged above the sewage draining outlet (2), and a bottom material is arranged on the multilayer bottom frame (3); the bottom is rice husks (4) suspended in the multilayer bottom frame (3); each layer of the multilayer bottom frame (3) is paved into a groove shape through a bracket (31) and a mesh (32) covered on the bracket (31); an isolation frame (5) covers the sewage draining outlet (2), and the isolation frame (5) is positioned below the multilayer bottom frame (3); two water pushers (6) are respectively arranged at two diagonal ends of the living pool (1), and the water pushing directions of the two water pushers (6) are opposite; the water pusher (6) comprises a water retaining support (61) and an aeration disc (62) fixed on the bottom surface of the water retaining support (61), the water retaining support (61) is in a slope shape, the slope and two side surfaces of the slope are covered with water blocking films (63), and a pushing surface vertical to the bottom surface is open.

2. The composite rice field shrimp culture system of claim 1, wherein: the water purification area comprises a sedimentation tank (7) and a filtration area, wherein water flows sequentially through the sedimentation tank (7), and an elastic filler (8) is arranged in the sedimentation tank (7).

3. The composite rice field shrimp culture system of claim 2, wherein: the filtering area comprises a primary filtering tank (9), a secondary filtering tank (10) and a water outlet reservoir (11), wherein water flows sequentially, the primary filtering tank (9) is communicated with the sedimentation tank (7), and the water outlet reservoir (11) is communicated with a water inlet of the living pond (1).

4. The compound paddy field shrimp seed culture system as claimed in any one of claims 1 to 3, wherein: the top of the primary filtering tank (9) is provided with a top water distribution pipe (91), and a filtering cotton frame filled with filtering cotton is suspended in the tank.

5. The composite rice field shrimp culture system of claim 4, wherein: the bottom of the secondary filter tank (10) is provided with a bottom water distribution pipe (101), and a coral sand frame filled with coral sand is suspended in the tank.

Technical Field

The invention relates to a compound type paddy field shrimp seed culture system.

Background

Marsupenaeus japonicus (marsupenaeus japonicus), also known as penaeus japonicus, penaeus monodon and crinis carthami, are mainly distributed from eastern riparian bank of india-west pacific to north sea, australia and feijing islands of japan, and are also distributed in south coastal areas of jiangsu in China. The shrimp is a well-known and rare aquatic product for consumers in China, such as China, China and the like because of tender meat, delicious taste and rich nutrition. Since the last 90 s, the culture range of the penaeus japonicus in China is gradually expanded from south to north, and the penaeus japonicus culture method has been developed into one of the leading varieties for culturing the penaeus japonicus in various regions in the country in recent years. Due to the relative lag of the breeding method, the yield of the marsupenaeus japonicus in China is generally low, and the demand of the live shrimps in the market is larger and larger, so the price is continuously good.

The penaeus japonicus has obvious field property and strong cannibalism, is favored to be covered in the shade, is hidden in a sand layer with the sand surface of less than 1-3 cm in the daytime in the natural environment and moves at night. At present, the marsupenaeus japonicus is mostly cultured by paving fine sand in a pond as a substrate, and along with the culture, a large amount of dirt is easy to accumulate at the bottom of a sand layer, is difficult to decompose and blackens and smells, so that the penaeus japonicus can not inhabit and die; in addition, the habit of burying and dwelling the shrimps also brings great inconvenience to pond cleaning and shrimp catching, and the process of turning over the sand and drawing out the shrimps wastes time and labor and increases the probability of shrimp body damage. And the discharge of a large amount of culture wastewater wastes manpower and material resources, increases the culture cost, pollutes the environment and causes the large-scale spread of diseases.

Disclosure of Invention

In order to overcome the technical problems, the invention aims to provide a compound type paddy field shrimp seed culture system which reduces culture cost and improves the survival rate of prawns.

The technical scheme adopted by the invention is as follows:

the utility model provides a combined type paddy field shrimp species farming systems, includes living area and water purification district, the living area includes the living pond, the water inlet in living pond links to each other with the delivery port in water purification district, and the drain in living pond is located bottom of the pool central authorities and passes through the pipeline with the water inlet in water purification district and link to each other, the drain top is provided with the multilayer underframe, be provided with the substrate on the multilayer underframe.

As a further improvement of the technical scheme, the substrate is modified rice hulls suspended in a multi-layer bottom frame.

As a further improvement of the above technical solution, each layer of the multi-layer bottom frame is laid in a groove shape through the bracket and the mesh sheet covering the bracket.

As a further improvement of the technical scheme, the sewage draining outlet is covered with an isolation frame which is positioned below the multilayer bottom frame.

As a further improvement of the technical scheme, two water pushers are respectively arranged at two diagonal ends of the living pond, and the water pushing directions of the two water pushers are opposite.

As a further improvement of the technical scheme, the water pusher comprises a water retaining support and an aeration disc fixed on the bottom surface of the water retaining support, the water retaining support is in a slope shape, the slope and two side surfaces of the slope are covered with water retaining films, and the push-out surface vertical to the bottom surface is open.

As a further improvement of the technical scheme, the water purification area comprises a sedimentation tank and a filtration area, wherein water flows sequentially pass through the sedimentation tank, and elastic filler is arranged in the sedimentation tank.

As a further improvement of the technical scheme, the filtering area comprises a primary filtering tank, a secondary filtering tank and a water outlet reservoir, wherein water flows sequentially pass through the primary filtering tank, the secondary filtering tank and the water outlet reservoir, the primary filtering tank is communicated with the sedimentation tank, and the water outlet reservoir is communicated with a water inlet of the life tank.

As a further improvement of the technical scheme, the top of the primary filtering tank is provided with a top water distribution pipe, and a filtering cotton frame filled with filtering cotton is suspended in the tank.

As a further improvement of the technical scheme, the bottom of the secondary filter tank is provided with a bottom water distribution pipe, and a coral sand frame filled with coral sand is suspended in the secondary filter tank.

The invention has the beneficial effects that: the multi-layer bottom frame provides a buried habitat space for prawns, and due to the suspended multi-layer structure, dirt in the culture process is not easy to deposit on the substrate, so that a good environment is provided for the survival of the prawns, the pond cleaning and the shrimp catching are also convenient, meanwhile, culture wastewater is not directly discharged to the outside, but is continuously recycled between a living pond and a water purification area, the culture cost is reduced, and the requirements of the state on environmental protection can be met.

Drawings

The invention is further described with reference to the following figures and embodiments.

FIG. 1 is a floor plan of the present invention;

FIG. 2 is a schematic view of a multi-layered bottom frame of the present invention;

FIG. 3 is a schematic cross-sectional view of a living area of the present invention;

fig. 4 is a schematic structural diagram of the water pusher.

Detailed Description

The composite paddy field shrimp seed culture system of the present invention will be further described with reference to the accompanying drawings and examples, and the invention is not limited to the following examples.

The circulating water multi-layer efficient culture system for marsupenaeus japonicus as shown in fig. 1 is divided into a living area and a water purifying area. The living area comprises a living pool 1, the living pool 1 is a square round-corner cement pool with the size of 5 multiplied by 1.2m, the whole size of the water purifying area is 5 multiplied by 1.2m, and the area ratio of the living area to the water purifying area is 4: 1. There is drain 2 at 1 bottom of the pool center in life pond, and this drain 2 is as the delivery port simultaneously, and drain 2 passes through the pipeline with the water inlet in water purification district and links to each other, and the water inlet in life pond 1 links to each other with the delivery port in water purification district to constitute the water route circulation.

As shown in fig. 1-3, a multi-layer bottom frame 3 is arranged in the center of the living pond 1 and is positioned above the sewage draining outlet 2. The multilayer bottom frame 3 is a multilayer structure formed by a plurality of PVC pipes which are horizontally and vertically arranged and used as a support 31, sand is filled in the pipes to enable the pipes to be submerged, each layer is 30cm high, each layer is paved into a groove by using a 20-mesh plastic net sheet 32, the groove is 15cm high, and 10cm of pretreated rice husks 4 are suspended in the grooves and used as bottom materials. The rice hull 4 is pretreated by sieving the rice hull with a 10-mesh sieve and soaking the rice hull in fresh water to remove impurities, oxidizing and sterilizing the rice hull with potassium permanganate with the concentration of 50ppm for 0.5 hour, and then cleaning the rice hull. An isolation frame 5 is arranged above the sewage draining outlet 2 and below the multilayer bottom frame 3 to isolate the prawns, and a nylon net with 10 meshes is selected as the isolation frame 5.

As shown in figures 1 and 4, two diagonal ends positioned at the lower left corner and the upper right corner of the living pond 1 are provided with water pushers 6, and the water pushers 6 push water in opposite directions, so that water in the pond flows along the counterclockwise direction. The water pusher 6 is composed of a water-retaining bracket 61 and a square aeration disc 62 fixed at the bottom of the water-retaining bracket. The water retaining bracket 61 is made of PVC pipe, sand is filled in the pipe to make the pipe sink, the size is 0.8 multiplied by 0.5 multiplied by 1m, the slope and two sides of the slope are covered with color strip cloth as water retaining film 63 to retain water, and a plurality of aeration pipes 64 are arranged in parallel on the aeration disc 62. The aeration disk 62 is connected to the intake pipe 12.

The breeding sewage flows from the domestic pond 1 to the water purification area. The water purification area comprises a sedimentation tank 7 and a filtration area which are sequentially connected by water flow. The sedimentation tank 7 is internally provided with an elastic filler 8 which is a brush in the embodiment. The breeding sewage in the living pond 1 firstly flows into the sedimentation tank 7, large granular substances in the water, such as residual bait scraps, excrement and the like, are filtered and precipitated, and in addition, a biological film attached to the brush also plays a role in purifying the water quality.

The filtering area is composed of a water lifting reservoir 13, a primary filtering tank 9, a secondary filtering tank 10 and a water outlet reservoir 11 which are sequentially connected by water flow. The precipitated water flows into a water lifting reservoir 13, and is pumped to a primary filter tank 9 by a submersible pump. The bottom wall end of the primary filter tank 9 is provided with a foot pad with the height of 10cm, an upper suspended laminated plastic frame is used as a filter cotton frame, the frame size is 0.5 multiplied by 0.4m, honeycomb filter cotton is filled in the primary filter tank, the central part of the top of the primary filter tank is provided with a top water distribution pipe 91, the top water distribution pipe 91 is a PVC pipe with the pipe diameter of 50mm, and one side of the pipe bottom close to the filter cotton direction is provided with water distribution holes at equal intervals. The filter cotton is introduced into the primary filter tank 9 and mainly used for anaerobic denitrification to adsorb and decompose soluble pollutants such as organic matters, ammonia nitrogen, nitrite nitrogen and the like in the water body.

The sewage treated by the primary filtering tank 9 enters a secondary filtering tank 10. The bottom water distribution pipe 101 is arranged at the center of the bottom of the secondary filtering tank 10, the end of the tank wall is provided with a foot pad with the height of 10cm, a plastic frame which is suspended, stacked and laid is used as a coral sand frame, the size of the frame is 0.5 multiplied by 0.4m, and coarse coral sand is filled in the frame. The pool has the functions of further anaerobic denitrification, adsorption and decomposition of soluble pollutants in water, release of calcium and other substances from coral sand, and adjustment of ion balance in the water out of the pool.

The sewage treated by the secondary filter tank 10 enters an effluent reservoir 11. The bottom of the effluent reservoir 11 is provided with a microporous aeration disc 14 as an aeration device and is used for removing nitrogen dioxide, carbon dioxide and other gases generated by the metabolism of early-stage microorganisms in the water body. The microporous aeration disk 14 is connected to the air inlet pipe 12.

The aerated water enters the living pond 1 again through the water inlet, and then the aquaculture sewage is discharged into the sedimentation tank 7, so that the circulation is continuous.

The bottom of each unit pool forming the water purification area inclines towards the same direction, the bottommost part of the pool after inclining is provided with a sewage outlet 15, and the sewage in the pool is intensively discharged through a sewage discharge pipe communicated with the sewage outlet 15.

In the embodiment, the rice hulls 4 can be used as the prawn substrate and also can be used as a slow-release organic carbon source for the attachment, decomposition and utilization of microorganisms, so that the microbial treatment efficiency of the water body is improved.

In addition, the combined use of the elastic filler, the filter cotton and the coral sand frame and the biological treatment process (aerobic and anaerobic combination) can also effectively improve the microbial treatment efficiency.

The above-mentioned embodiment is only one of the preferred embodiments of the present invention, and should not be used to limit the scope of the present invention, but all the insubstantial modifications or changes made within the spirit and scope of the main design of the present invention, which still solve the technical problems consistent with the present invention, should be included in the scope of the present invention.