CN203353462U

CN203353462U - Filtering device for freshwater fish fry incubation water

Info

Publication number: CN203353462U
Application number: CN 201320427578
Authority: CN
Inventors: 周志金; 费志平; 胡大雁
Original assignee: HUZHOU AQUATIC TECHNOLOGY EXTENSION STATION
Current assignee: HUZHOU AQUATIC TECHNOLOGY EXTENSION STATION
Priority date: 2013-07-18
Filing date: 2013-07-18
Publication date: 2013-12-25
Anticipated expiration: 2023-07-18

Abstract

The utility model relates to filtering devices, in particular to a filtering device for freshwater fish fry incubation water. According to the technical scheme, the filtering device for the freshwater fish fry incubation water comprises a base plate, inner side walls and outer side walls, the inner side walls and the outer side walls are arranged on the base plate and permeable to water, an area defined by the inner side walls is located in an area defined by the outer side walls, and a filter layer formed by mixing medium stones and medium-coarse sand is filled between the inner side walls and the outer side walls. According to the filtering device for the freshwater fish fry incubation water, the filtering effect is good, and requirements for the freshwater fish fry incubation water can be met.

Description

A kind of freshwater fish seedling Spawning water filter

Technical field

The utility model relates to filter, particularly a kind of freshwater fish seedling Spawning water filter.

Background technology

Fish be live in throughout one's life in water, with gill respiration, with the alternating temperature vertebrate of the auxiliary balance of fin and motion.Nearly 3,000 kinds of the existing sea water and fresh water fish of China, the wherein about 1000 kinds of left and right of fresh-water fishes; Freshwater fish lives in fresh water, the physical property of water, chemistry and biologically be directly connected to breeding, growing and existence of fish; In the fish life cycle, hatch fish roe is the highest to the requirement of water quality, wherein the requirement of water quality is mainly contained: water temperature, dissolved oxygen, pH value, the harmful organisms, turbidity; In water, harmful organisms mainly contains and take the zooplanktons such as large-scale copepoda, aquatic insect and small fish, the shrimp etc. that cyclops and water flea be representative; Their normal invasion and attack fish-eggs, fry, bite or kill a large amount of sons, postlarva, and the hatching of fish and the growth of juvenile fish are caused to very large harm; The mud that simultaneously due to turbidity, contains subparticle is adsorbed on the fish-egg surface or has just made fish-egg or son, postlarva anoxia asphyxia on the son, the postlarva gill filament of incubation of membrane, be adsorbed on fin ray the fish body is moved about freely and extremely at mud young, postlarva stage subparticle, thereby reduce the fry hatching survival rate, affect fish production; Mostly with 60 orders-80 purpose nylon-tissue bag screen cloth, make delivery port that sack is enclosed within water pump to reach the purpose of filtration, to guarantee effectively filtration and Spawning water amount and produce at present upper Spawning water; But affect because filtering mesh bag is subject to the impulse force of water pump water outlet, the larva such as the cyclops of less individuality and ovum often have by filter screen, and the time have the situation of filtering mesh bag breakage to occur, and the mud in turbidity is difficult to be filtered.

The utility model content

The purpose of this utility model is to provide a kind of freshwater fish seedling Spawning water filter, and it has good filter effect, meets the requirement of freshwater fish seedling Spawning water.

Above-mentioned technical purpose of the present utility model is achieved by the following technical programs: a kind of freshwater fish seedling Spawning water filter comprises chassis, is located at described chassis and madial wall and lateral wall that can both be permeable; The zone that described madial wall surrounds is arranged in the zone that described lateral wall surrounds; Between described interior lateral wall, be filled with by the filter course that is mixed to form of stone and medium coarse sand.

As of the present utility model preferred, described medium coarse sand mixes in the 4:6 ratio with middle stone layer.

As of the present utility model preferred, described madial wall comprises spaced inner support, is located at the Intranet sheet on described inner support.

As of the present utility model preferred, described madial wall also comprises the interior firm circle of the described inner support of connection for firm described inner support.

As of the present utility model preferred, described lateral wall comprises spaced support arm, is located at the external net slice on described support arm.

As of the present utility model preferred, described lateral wall also comprises the outer firm circle of the described support arm of connection for firm described support arm.

As of the present utility model preferred, described Intranet sheet is that 16-20 order polyethylene has woven net.

As of the present utility model preferred, described external net slice is that 16-20 order polyethylene has woven net.

As of the present utility model preferably, described middle stone layer is the building stones that the building that is processed into woollen in mine is used, and particle diameter is 16-31.5mm; The particle diameter of described medium-sand seam is 0.25-0.5mm.

In sum, the utlity model has following beneficial effect: in employing, stone and medium coarse sand act as filter medium, have good filter effect, and the one, the mud that can filter subparticle makes water thorough clearly; The 2nd, can effectively prevent harmful organisms in sealing, the zooplanktons such as large-scale copepoda, aquatic insect and small fish, the shrimp etc. that as cyclops and water flea, are representative enter clean water area.During use, the utility model is positioned in water, upper end of the present utility model is exposed to the water surface, water outside lateral wall permeates middle stone and the medium coarse sand as filter medium, thereby enter that madial wall surrounds clean water area, and then can extract water in clean water area as freshwater fish seedling Spawning water by water pump.

The accompanying drawing explanation

Fig. 1 is the frame structure schematic diagram of embodiment;

Fig. 2 is the embodiment end view.

In figure, 1, chassis, 2, madial wall, 21, inner support, 23, interior firm circle, 3, lateral wall, 31, support arm, 33, outer firm circle, 41, filter course, 5, filtering area, 6, clean water area, 7, rib.

Embodiment

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

This specific embodiment is only to explanation of the present utility model; it is not to restriction of the present utility model; those skilled in the art can make to the present embodiment the modification that there is no creative contribution as required after reading this specification, but as long as all are subject to the protection of Patent Law in claim scope of the present utility model.

Embodiment: as shown in Figure 1-2, a kind of freshwater fish seedling Spawning water filter, comprise concrete structural chassis 1, chassis 1 is provided with the steel support arm 31 that surrounds circle, is fixedly connected with the outer firm circle 33 of steel of all support arms 31, and the diameter of outer firm circle 33 is 8m, be spaced apart 500mm between adjacent outer firm circle, the diameter of outer firm circle 33 steel used is 22mm, and it is 20mm that support arm 31 adopts the diameter of steel, between adjacent support arm 31, is spaced apart 15-20mm; Also be tied with screen cloth and external net slice on support arm 31, screen cloth is plastic material, and external net slice is that 16-20 order polyethylene has woven net, and screen cloth and external net slice are not shown.

Chassis 1 is provided with the steel inner support 21 that surrounds circle, be fixedly connected with the interior firm circle 23 of steel of all inner supports 21, the diameter of interior firm circle 23 is 6.3m, be spaced apart 500mm between adjacent interior firm circle, the diameter of interior firm circle 23 steel used is 22mm, it is 20mm that inner support 21 adopts the diameter of steel, between adjacent inner support 21, is spaced apart 15-20mm; Also be tied with Intranet sheet and screen cloth on inner support 21, screen cloth is plastic material, and the Intranet sheet is that 16-20 order polyethylene has woven net, and screen cloth and Intranet sheet are not shown.

Between inside and outside

firm circle

23 and 33, adopt the steel rib 7 that diameter is 10mm to be connected, be spaced apart 800mm.

The height of interior support arm should be the 2m left and right, and while using with assurance, the upper surface of the present embodiment can be exposed to the water surface; Support arm 31, external net slice and outer firm circle 33 form lateral wall 3, and inner support 31, Intranet sheet and interior firm circle 23 form madial wall 2, and the zone that madial wall 2 surrounds is arranged in the zone that lateral wall 3 surrounds; And form filtering area 5 between interior lateral wall, the zone that madial wall 2 surrounds forms clean water area 6.

Be filled with filter course 41 in filtering area 5, filter course 41 by stone mix and form with medium coarse sand; Medium coarse sand and middle stone stratum proportion are 4:6; Middle stone is the building stones that the building that is processed into woollen in mine is used, concave-convex surface, and particle diameter is 16-31.5mm; The particle diameter of medium-sand seam 42 is 0.25-0.5mm; Intranet and extranet sheet and screen cloth should be able to effectively avoid filter course 41 to run off.

In use procedure, embodiment is dipped in water, and upper surface is exposed to the water surface, lateral wall 3 outer untreated waters can enter clean water area 6 by infiltrate filtering area 5, thereby effectively prevent that by filter course 41 harmful organisms in the mud of subparticle and water (as cyclops and water flea be representative the zooplanktons such as large-scale copepoda, aquatic insect and small fish, shrimp etc.) from entering clean water area 6, so that the water in clean water area 6 meet the requirement of freshwater fish seedling Spawning water.

Claims

1. a freshwater fish seedling Spawning water filter, is characterized in that, comprises chassis (1), is located at described chassis (1) and madial wall (2) and lateral wall (3) that can both be permeable; The zone that described madial wall (2) surrounds is arranged in the zone that described lateral wall (3) surrounds; Between described interior lateral wall, be filled with by the filter course (41) that is mixed to form of stone and medium coarse sand.

2. a kind of freshwater fish seedling Spawning water filter according to claim 1, is characterized in that, described medium coarse sand and middle stone layer 4:6 ratio in mass ratio mix.

3. a kind of freshwater fish seedling Spawning water filter according to claim 1, is characterized in that, described madial wall (2) comprises spaced inner support (21), is located at the Intranet sheet on described inner support (21).

4. a kind of freshwater fish seedling Spawning water filter according to claim 4, is characterized in that, described madial wall (2) also comprises the interior firm circle (23) of the described inner support of connection (21) for firm described inner support (21).

5. a kind of freshwater fish seedling Spawning water filter according to claim 1, is characterized in that, described lateral wall (3) comprises spaced support arm (31), is located at the external net slice on described support arm (31).

6. a kind of freshwater fish seedling Spawning water filter according to claim 5, is characterized in that, described lateral wall (3) also comprises the outer firm circle (33) of the described support arm of connection (31) for firm described support arm (31).

7. according to the described a kind of freshwater fish seedling Spawning water filter of claim 3 or 4, it is characterized in that, described Intranet sheet is that 16-20 order polyethylene has woven net.

8. according to the described a kind of freshwater fish seedling Spawning water filter of claim 5 or 6, it is characterized in that, described external net slice is that 16-20 order polyethylene has woven net.

9. a kind of freshwater fish seedling Spawning water filter according to claim 1, is characterized in that, the building stones that the building that described middle stone layer (41) is processed into woollen for mine is used, and particle diameter is 16-31.5mm; The particle diameter of described medium-sand seam (42) is 0.25-0.5mm.