阅读说明：本技术 一种高效虾幼体筛选设备 (High-efficient shrimp larva screening installation ) 是由 吴艳蓉 杜德新 李良玉 魏文燕 于 2018-06-26 设计创作，主要内容包括：本发明公开了对虾养殖技术,特别涉及一种高效虾幼体筛选设备,包括幼体培养池、与幼体培养池连通的收集网、用于排放收集网内滤水的排水池以及用于筛选所述收集网中对虾无节幼体的筛选装置,收集网设置于排水池内。与现有技术相比,该筛选系统能够快速高效地对幼体培养池内含有未孵化的受精卵以及活性参差不齐的对虾无节幼体进行筛选,有利于提高后续虾苗培育的成活率和产量,实现对虾养殖业的产业化发展；而且该筛选系统具有结构简单、操作便捷、筛选效率高的优点,能够满足工厂化对虾养殖的规模化生产的需要。(The invention discloses a prawn breeding technology, and particularly relates to high-efficiency prawn larva screening equipment which comprises a larva culture pond, a collection net communicated with the larva culture pond, a drainage pond used for discharging filtered water in the collection net, and a screening device used for screening prawn nauplii in the collection net, wherein the collection net is arranged in the drainage pond. Compared with the prior art, the screening system can rapidly and efficiently screen the shrimp nauplii containing unhatched fertilized eggs and irregular activity in the larva culture pond, is beneficial to improving the survival rate and the yield of subsequent shrimp fry culture, and realizes the industrialized development of the shrimp aquaculture; and the screening system has the advantages of simple structure, convenience in operation and high screening efficiency, and can meet the requirement of large-scale production of industrial prawn culture.)

1. The utility model provides a high-efficient shrimp larva screening installation which characterized in that: the device comprises a larva culture pond, a collection net communicated with the larva culture pond, a drainage pond used for discharging filtered water in the collection net and a screening device used for screening the prawn nauplii in the collection net, wherein the collection net is arranged in the drainage pond; the screening device comprises a light source and a screening box, wherein one side wall of the screening box in the length direction is a light-transmitting surface, and the other side walls are not light-transmitting; a plurality of light-transmitting partition plates are sequentially arranged in the screening box along the length direction, the light-transmitting partition plates divide the screening box into a plurality of partition areas for screening the high-activity prawn nauplii, a channel for the prawn nauplii to pass through is reserved between the top of each light-transmitting partition plate and the top of the screening box, a baffle plate for blocking the prawn nauplii to pass through is arranged at the top of each light-transmitting partition plate, and the light source irradiates the light-transmitting surface; the light-transmitting clapboards are sequentially arranged in a descending manner in height in the direction of the light-transmitting surface; the screening system further comprises a quantifying device used for calculating the prawn nauplii screened by the screening device, the quantifying device comprises a quantifying cylinder and a measuring cup, the volume of the quantifying cylinder is set to be 100-1000L, and the volume of the measuring cup is 10-100 ml.

2. The high-efficiency shrimp larva screening device as claimed in claim 1, wherein: a water outlet is formed in the side wall of the larva culture pond and is communicated with the collection net through a pipeline; the collection net comprises a net bag and a support frame for supporting the net bag, and the support frame is fixed on the drainage pool.

3. The high-efficiency shrimp larva screening device according to claim 2, wherein: the mesh number of the mesh bags is set to be 100-200 meshes.

4. The high-efficiency shrimp larva screening device according to any one of claims 1 to 3, wherein: the support frame is a three-dimensional frame, and the mesh bag is sleeved and hung on the frame; the frame is also provided with a hanging piece, and the collecting net is hung in the drainage pool through the hanging piece; the hanging pieces are symmetrically arranged on two sides of the opening of the frame; and a cover plate is laid at the opening of the drainage pool.

Technical Field

The invention relates to high-efficiency shrimp larva screening equipment.

Background

The propagation of prawn mainly includes several important stages of fertilized egg, nauplii, shrimp seedling and adult prawn. The quality of the young prawn is determined by the quality of the adult prawn, and the quality of the young prawn variety is determined by the quality of the young prawn, so that the breeding of the young prawn with excellent performance is one of the key techniques for culturing the prawn. The excellent prawn nauplii can show better activity, mainly manifested by stronger floating ability and phototaxis performance of the nauplii, while the inferior prawn nauplii has poorer activity.

At present, in the prawn breeding industry, the larva breeding of most prawns mainly depends on wild parents, namely fertilized eggs generated by male and female parent prawns are hatched in a larva breeding pond to form nauplii, and then the nauplii are bred in a larva breeding pond. In the existing prawn breeding mode, the nauplii hatched in the larva breeding pool have uneven breed activity, the quality of the prawn seedlings bred after the nauplii directly enter the larva breeding pool cannot be guaranteed, the prawn seedlings bred by the nauplii with poor activity are easily damaged by pathogens, the survival rate is low, the quality and the yield of the prawn seedlings are seriously influenced, and the healthy development of modern high-efficiency and large-scale prawn breeding industry cannot be met.

Therefore, a good prawn larva screening system is needed to ensure the sustainable development of the prawn breeding industry.

Disclosure of Invention

The invention aims to provide a prawn nauplii screening system aiming at the defects in the prior art, and the system can quickly and efficiently screen prawn nauplii hatched in a nauplii breeding pool.

In order to achieve one of the above objects, the present invention is achieved by the following technical solutions.

The utility model provides a high-efficient shrimp larva screening installation, including the larva culture pond, with the collection net of larva culture pond intercommunication, be used for discharging the drainage basin of collecting the interior drainage water of net and be used for the screening collect the sieving mechanism of the shrimp nauplius larva in the net, it sets up in the drainage basin to collect the net.

The screening device comprises a light source and a screening box, wherein one side wall of the screening box in the length direction is a light-transmitting surface, and the other side walls are not light-transmitting; the screening incasement portion has set gradually a plurality of printing opacity baffle along length direction, the printing opacity baffle will a plurality of partition areas that are used for screening high activity shrimp nauplius are separated into to the screening case, printing opacity baffle top with leave the passageway that supplies shrimp nauplius to pass through between the screening roof portion, every the top of printing opacity baffle is provided with and is used for blockking the baffle that shrimp nauplius passes through, just the light source shines to the printing opacity face.

The light-transmitting partition plates are sequentially arranged in a descending manner in height in the direction of the light-transmitting surface.

And a water outlet is formed in the side wall of the larva culture pond and is communicated with the collection net through a pipeline.

The collection net comprises a net bag and a support frame for supporting the net bag, and the support frame is fixed on the drainage pool.

The mesh number of the mesh bags is set to be 100-200 meshes.

The support frame is a three-dimensional frame, and the mesh bag is sleeved and hung on the frame;

the frame is also provided with a hanging piece, and the collecting net is hung in the drainage pool through the hanging piece.

The hanging pieces are symmetrically arranged on two sides of the opening of the frame.

And a cover plate is laid at the opening of the drainage pool.

The screening system further comprises a quantifying device used for calculating the prawn nauplii screened by the screening device, the quantifying device comprises a quantifying cylinder and a measuring cup, the volume of the quantifying cylinder is set to be 100-1000L, and the volume of the measuring cup is 10-100 ml.

The invention has the beneficial effects that:

the invention provides high-efficiency shrimp larva screening equipment which comprises a larva culture pond, a collection net communicated with the larva culture pond, a drainage pond used for discharging filtered water in the collection net and a screening device used for screening prawn nauplii in the collection net, wherein the collection net is arranged in the drainage pond. The fertilized eggs form the nauplius prawns after being hatched in the larva culture pond, the larva culture pond contains unhatched fertilized eggs and nauplius prawns with uneven activity. Compared with the prior art, the screening system can rapidly and efficiently screen the shrimp nauplii containing unhatched fertilized eggs and irregular activity in the larva culture pond, is favorable for improving the survival rate and the yield of subsequent shrimp fry culture, and realizes the industrialized development of the shrimp aquaculture; and the screening system has the advantages of simple structure, convenience in operation and high screening efficiency, and can meet the requirement of large-scale production of industrial prawn culture.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, with the understanding that the present disclosure is to be considered as an exemplification of the invention and is not intended to limit the invention to the embodiments illustrated in the drawings, in which:

FIG. 1 is a schematic structural view of a high-efficiency shrimp larva screening apparatus according to the present invention;

FIG. 2 is a schematic view showing the structure of a collecting net in the high-efficiency shrimp larva screening apparatus according to the present invention;

fig. 3 is a schematic structural diagram of a screening device in the high-efficiency shrimp larva screening equipment.

Description of the labeling: a larva culture pond 1 and a water outlet 11; collecting net 2, net bag 21, frame 22 and hanging piece 23; a drainage basin 3; the screening device 4, the screening box 41, the light-transmitting surface 411, the light-transmitting partition 412, the baffle 413 and the light source 42; a dosing device 5, a dosing cylinder 51, and a measuring cup 52.

Detailed Description

The present invention will be further described with reference to the following description and examples, which include but are not limited to the following examples.

The high-efficient shrimp larva screening installation of this embodiment, as shown in fig. 1 to 3, including larva culture pond 1, with the collection net 2 of larva culture pond 1 intercommunication, be used for discharging the drainage pit 3 of collecting the interior drainage of net 2 and be used for the screening collect the sieving mechanism 4 of the shrimp nauplii in net 2, collect net 2 and set up in drainage pit 3. Compared with the prior art, the screening system can rapidly and efficiently screen the shrimp nauplii containing unhatched fertilized eggs and irregular activity in the larva culture pond, is beneficial to improving the survival rate and the yield of subsequent shrimp fry culture, and realizes the industrialized development of the shrimp aquaculture; and the screening system has the advantages of simple structure, convenience in operation and high screening efficiency, and can meet the requirement of large-scale production of industrial prawn culture.

In this embodiment, the screening device 4 includes a light source 42 and a screening box 41, one side wall of the screening box 41 in the length direction is set as a light-transmitting surface 411, and the other side walls are not light-transmitting; the inside a plurality of printing opacity baffle 412 that has set gradually along length direction of screening case 41, printing opacity baffle 412 separates into a plurality of subregion that are used for screening high activity shrimp nauplius with screening case 41, leaves the passageway that supplies shrimp nauplius to pass through between printing opacity baffle 412 top and the screening case 41 top, and the top of every printing opacity baffle 412 is provided with the baffle 413 that is used for blockking shrimp nauplius to pass through, and light source 42 shines to printing opacity face 411. The screening device is provided with a screening box with partitions, the prawn nauplii are firstly immersed into a first partition area far away from a light-transmitting surface and then screened step by step through each partition area, and therefore excellent prawn nauplii are bred;

in this embodiment, the light-transmitting partitions 412 are sequentially arranged in descending order in height in the direction of the light-transmitting surface 411, so that the number of the screened nauplii of the prawns is ensured, and a better screening effect is achieved.

In this embodiment, delivery port 11 has been seted up to the lateral wall of larva culture pond 1, and delivery port 11 passes through the pipeline and collects net 2 intercommunications, only needs to open the delivery port and can carry the shrimp nauplius larva to collecting the net, has further improved production efficiency.

In this embodiment, the collecting net 2 comprises a net bag 21 and a support frame for supporting the net bag 21, and the support frame is fixed to the drainage pool 3 so as to convey the nauplii of the prawns to the net bag; in this embodiment, the mesh bag 21 has a mesh size of 200 meshes, so that the filtered water can flow out and the nauplii of the prawns can be retained in the mesh bag.

In this embodiment, the supporting frame is a three-dimensional frame 22, and the mesh bag 21 is hung on the frame 22, so that the opening of the mesh bag is fully opened; wherein, frame 22 still is equipped with pendant 23, collects net 2 and hangs through pendant 23 and establish in drainage ponds 3 for not only collect the net and can filter out the drainage betterly, need not the manual work moreover and can hang the collection net steadily and establish in drainage ponds 3.

In this embodiment, the hanging members 23 are symmetrically disposed on both sides of the opening of the frame 22, so that the collecting net can be better hung in the drainage pool 3.

In this embodiment, the opening of drainage pond 3 is laid and is equipped with the apron to can walk on the drainage pond, increase ground usable floor area.

In this embodiment, the screening system further includes a quantifying device 5 for calculating the prawn nauplii screened by the screening device 4, the quantifying device 5 includes a quantifying cylinder 52 and a measuring cup 51, the volume of the quantifying cylinder 52 is set to 1000L, and the volume of the measuring cup 51 is 20ml, so as to be convenient for calculating the number of the screened prawn nauplii.

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.