Breeding water purification device

Abstract

The utility model belongs to the technical field of culture, and relates to a culture water purification device which comprises a biological floc culture bin, a biological floc purification bin, a biological floc purification bin and a biological floc purification bin, and the biological floc culture bin is provided with a culture water inlet part; the solid-liquid separation unit comprises a liquid storage bin, the upper part of the liquid storage bin is connected with a filter sieve, and a plurality of filter holes are formed in the filter sieve; one end of the filter sieve is communicated with the first water outlet part of the biofloc culture bin; the outlet end of the backwashing tank of the filter sieve is communicated with the biofloc culture bin through a connecting pipe; a purified water outlet is formed in the bottom of the liquid storage bin. After the structure is adopted, the aquaculture device has the beneficial effects that the structure is simple, the layout is reasonable, aquaculture water is recycled, and resources are saved.

Description

Technical Field

[0001] The utility model belongs to the technical field of aquaculture, and specifically relates to a purification device for aquaculture water. Background Art

[0002] There are three types of aquaculture: extensive farming, intensive farming and high-density intensive farming. Extensive farming is to release seedlings in medium and small natural waters, and grow aquatic products entirely with natural bait, such as fish farming in lakes and reservoirs and shellfish farming in shallow seas. Intensive farming is to grow aquatic products in smaller water bodies by feeding and fertilizing, such as pond fish farming, cage fish farming and fence farming. High-density intensive farming uses methods such as flowing water, temperature control, oxygenation and feeding high-quality bait to carry out high-density farming in small water bodies, thereby obtaining high yields, such as high-density running water farming of fish and shrimp. Among the existing farming methods, most of them adopt the fish pond water exchange farming model, which not only has a great impact on the environment during the farming process, but also wastes water resources.

[0003] Biofloc technology is a relatively advanced aquaculture water purification technology introduced in recent years. It refers to the regulation of water nutrient structure, adding organic carbon substances to water, adjusting the C / N value in water, and combining sufficient oxygenation and water agitation to promote the metabolic reproduction of heterotrophic bacteria in water, using microorganisms to assimilate inorganic nitrogen, and converting ammonia nitrogen and other aquaculture metabolic pollutants in water into bacterial biomass, and through bacterial flocculation into granular matter to be ingested and utilized by farmed animals, it plays a role in maintaining water environment stability, reducing water changes, improving animal immunity, improving aquaculture survival rate, increasing production and reducing feed coefficients. It is considered to be an effective alternative technology to solve the environmental constraints and feed costs faced by the development of the aquaculture industry. Therefore, it is worth studying how to use biofloc technology to treat aquaculture water. Utility Model Content

[0004] In order to solve the above problems in the prior art, the utility model provides a purification device for aquaculture water, which has a simple structure and strong practicability.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] As one aspect of the utility model, a purification device for aquaculture water is provided, which comprises: a biofloc culture chamber, wherein the biofloc culture chamber has an aquaculture water inlet;

[0007] A solid-liquid separation unit, the solid-liquid separation unit comprises a liquid storage bin, the upper part of the liquid storage bin is connected with a filter screen, the filter screen is provided with a plurality of filter holes; the filter holes are 200 meshes; one end of the filter screen is connected with the first water outlet of the biofloc culture bin; the backwash tank outlet end of the filter screen is connected with the biofloc culture bin through a connecting pipe; a purified water outlet is provided at the bottom of the liquid storage bin.

[0008] Optionally, a backwash spray unit is also included, which is connected to the liquid storage tank and is located on the side of the filter screen.

[0009] Optionally, the backwash spray unit includes a spray pipe connected to the liquid storage tank, and the spray pipe is connected to the backwash water pump; a plurality of spray heads are connected to the spray pipe at intervals.

[0010] Optionally, it further comprises a stirrer, which is connected to the biofloc culture bin, and the stirring impeller of the stirrer is located in the biofloc culture bin.

[0011] The beneficial effects of the aquaculture water purification device of the utility model are specifically embodied in: simple structure, reasonable layout, recycling of aquaculture water, and saving of resources. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The drawings in the specification, which constitute a part of the present application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention.

[0013] Figure 1 It is a schematic diagram of the structure of the aquaculture water purification device of the utility model. DETAILED DESCRIPTION

[0014] In order to make the purpose, technical solution and advantages of the utility model clearer, the technical solution of the utility model will be clearly and completely described below in combination with the specific embodiments of the utility model and the corresponding drawings. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0015] A purification device for aquaculture water according to an embodiment of the present application is as follows: Figure 1 As shown, it comprises: a biofloc culture chamber 1 for cultivating bioflocs; the biofloc culture chamber 1 has an aquaculture water inlet 11, and aquaculture water enters the biofloc culture chamber 1 from the aquaculture water inlet 11; it should be noted that the cultivation of bioflocs is a prior art and will not be described in detail. The focus of this embodiment is to purify aquaculture water by using bioflocs;

[0016] A solid-liquid separation unit, the solid-liquid separation unit comprises a liquid storage bin 2, the upper part of which is connected to a filter screen 3, the filter screen 3 is prior art and will not be described in detail; the filter screen 3 is cylindrical and is provided with a plurality of filter holes, the filter holes are 200 meshes, the aperture of the filter holes is smaller than the diameter of the biological flocs, and prevents the biological flocs from entering the liquid storage bin 2; one end of the filter screen 3 is connected to the first water outlet 12 of the biological floc culture bin 1; the backwash tank outlet end of the filter screen 3 is connected to the biological floc culture bin 1 through a connecting pipe 4, and the biological flocs in the filter screen 3 are returned to the biological floc culture bin 1 through the connecting pipe 4; a purified water outlet 21 is provided on the bottom of the liquid storage bin 2 for the outflow of purified water for recycling.

[0017] In one embodiment, a backwashing spray unit 5 is further included. The backwashing spray unit 5 is connected to the liquid storage tank 2 and is located on the side of the filter screen 3 . The backwashing spray unit 5 washes the filter screen 3 .

[0018] Furthermore, the backwash spray unit 5 includes a spray pipe 51 connected to the liquid storage tank 2, and the spray pipe 51 is connected to the backwash water pump. The structure and working principle of the backwash water pump are prior art and are not repeated here. A plurality of nozzles 52 are connected to the spray pipe 51 at intervals, and the nozzles 52 are aimed at the filter screen 3 to facilitate flushing of the filter screen 3. The flushing water enters the liquid storage tank 2 and is recycled.

[0019] In one embodiment, it also includes a stirrer 6, which is connected to the biofloc culture bin 1. The stirring impeller 61 of the stirrer 6 is located in the biofloc culture bin 1 to fully mix the aquaculture water and the biofloc. It should be noted that the stirrer 6 is a prior art and will not be described in detail.

[0020] During implementation, the bioflocs in the biofloc culture bin 1 serve as porous materials for the attachment of microorganisms in the aquaculture water body, such as activated carbon, etc.; the aquaculture water enters the biofloc culture bin 1 from the aquaculture water inlet 11, and the agitator 6 is stirred to allow the bioflocs to fully contact the aquaculture water body to absorb nitrogen and phosphorus substances in the aquaculture water body. The water body after the reaction enters the filter screen 3, and the bioflocs separated by the filter screen 3 are returned to the biofloc culture bin 1 for reuse, and the purified water body is discharged back to the aquaculture pond from the liquid storage bin 2.

[0021] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0022] Unless otherwise specifically stated, the relative arrangement, numerical expressions and numerical values ​​of the parts and steps set forth in these embodiments do not limit the scope of the present application. Meanwhile, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to the actual proportional relationship. The technology, methods and equipment known to those of ordinary skill in the relevant art may not be discussed in detail, but in appropriate cases, the technology, methods and equipment should be considered as a part of the specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, and therefore, once a certain item is defined in an accompanying drawing, it does not need to be further discussed in subsequent drawings.

[0023] In the description of the present application, it should be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction, and therefore cannot be understood as limiting the scope of protection of the present application; the directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0024] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" may include both "above" and "below". The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0025] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of this application.

[0026] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0027] The above description is only a preferred embodiment of the present invention. All equivalent changes and modifications made according to the scope of the patent application of the present invention should fall within the scope of the present invention.

Claims

1. A purification device for aquaculture water, characterized in that: It includes: A biofloc culture chamber (1), wherein the biofloc culture chamber (1) has an aquaculture water inlet (11); A solid-liquid separation unit, the solid-liquid separation unit comprising a liquid storage bin (2), the upper part of the liquid storage bin (2) being connected to a filter screen (3), the filter screen (3) being provided with a plurality of filter holes; one end of the filter screen (3) being connected to a first water outlet (12) of a biofloc culture bin (1); the backwash tank outlet end of the filter screen (3) being connected to the biofloc culture bin (1); and a purified water outlet (21) being provided at the bottom of the liquid storage bin (2).

2. A purification device for aquaculture water according to claim 1, characterized in that: It also comprises a backwashing spray unit (5), which is connected to the liquid storage bin (2) and is located on the side of the filter screen (3).

3. A purification device for aquaculture water as claimed in claim 2, characterized in that: The backwash spray unit (5) comprises a spray pipe (51) connected to the liquid storage bin (2), the spray pipe (51) being in communication with a backwash water pump; and a plurality of spray heads (52) are connected to the spray pipe (51) at intervals.

4. A purifying device for aquaculture water according to any one of claims 1 to 3, characterized in that: It also comprises a stirrer (6), wherein the stirrer (6) is connected to the biofloc culture bin (1), and the stirring impeller (61) of the stirrer (6) is located in the biofloc culture bin (1).

5. The aquaculture water purification device according to claim 1, characterized in that: The filter hole is 200 meshes.

6. The aquaculture water purification device according to claim 1, characterized in that: The backwash tank outlet end of the filter screen (3) is connected to the biofloc culture bin (1) via a connecting pipe (4).

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