CN104828952B - Cultivation tail water floading condition processing meanss - Google Patents

Abstract

The invention discloses a floating treatment device for aquaculture tail water, which comprises a circulation water tank with an upper opening, wherein: a sieve plate is arranged near the middle of the circulation water tank to divide the circulation water tank into upper and lower regions; the sieve plate has sieve holes; the sieve plate Near the position with a certain gap below, there is at least one plugging flap that can be fitted to block the screen hole after a short-distance position change; both ends of the circulation tank are provided with inlet and outlet pipe groups that can feed and drain the upper and lower areas. The inlet and outlet pipes at one end inject the culture tail water into the area above the sieve plate, and the organic debris and other particulate matter in the tail water fall through the sieve plate to the bottom of the circulation tank, and the clean water flows out through the inlet and outlet pipes at the other end. The invention has the advantages of solid-liquid separation, automatic sewage discharge, less manual intervention and convenient management.

Description

Floating treatment device for aquaculture tail water

technical field

The invention relates to an aquaculture tail water purification device, in particular to a floating state treatment device for aquaculture tail water.

Background technique

In recent years, the density of freshwater fish farming in large water areas has increased year by year, and the farming models are all open farming, resulting in serious pollution of water bodies by fish excrement. Once a fish disease breaks out, it will affect the entire water area, and farmers will suffer serious losses. Moreover, large-scale waters are generally open and have a wide range. It is difficult to divide the areas of farmed freshwater fish, and it is also difficult to allocate and fish them. Therefore, at present, many large water areas will concentrate on arranging cages, and the cages are connected to each other to form fishing rafts, which is convenient for feeding and management. Breeding freshwater fish through closed and semi-closed cages can limit the residual bait and fish feces in the sewage collection bucket of the cage; regularly replace the water in the cage to reduce the pollution of the water body and limit the pollution range. At the same time, the work of fishing can be greatly simplified through cage culture, which improves economic benefits. Although the use of cage culture has reduced the scope of large-scale water pollution, the water in the cages still has to be regularly discharged into the water, which will inevitably cause serious pollution to the water body over time. However, the cages in large waters are placed in open waters, which cannot imitate the cages of industrial fish farming and discharge sewage into the sewer regularly. Such as the Chinese invention patent application with publication number CN103112995A, discloses a kind of sewage treatment device and method for net cage culture in large-scale waters, it is characterized in that: comprise sewage collecting bucket, the sewage collecting bucket is arranged on the bottom of net cage, sewage collecting bucket and The sewage pipe is connected to the gas-liquid mixer in the middle, and the exhaust port of the gas-liquid mixer is connected to the gas pipeline; the sewage outlet at the end of the sewage pipe is connected to the screen box, and the water outlet of the screen box is connected to the sewage collection tank. Connected, there is a biological bacteria hanging film in the sewage collection tank, the air pipe extends into the sewage collection tank, and is connected with the aeration pipe, the aeration pipe is arranged horizontally, and is located under the biological bacteria hanging film; the sewage collection tank is also The filter pool is fixed, and the filter pool is filtered by silk. The outlet of the filter pool is connected with the ecological floating island treatment system; the ecological floating island treatment system is fixed on the side of the sewage collection pool, and there is a water flow channel inside it Aquatic plants are planted, and the water in the sewage collection tank enters the water flow channel, and is discharged into a large water area after purification. The equipment is complex, the maintenance cost is high, and there is still room for further improvement, and when it is applied to factory farming, it needs further adaptive transformation.

Contents of the invention

The object of the present invention is to provide a floating treatment device for aquaculture tail water capable of solid-liquid separation, automatic sewage discharge, less manual intervention and convenient management in view of the prior art.

The technical solution adopted by the present invention to solve the above technical problems is: a breeding tail water floating state treatment device, including a circulation tank with an upper opening, wherein: a sieve plate is provided near the middle of the circulation tank to divide the circulation tank into upper and lower regions; There are sieve holes on the sieve plate; there is at least one plugging flap that can fit and block the sieve holes after a short-distance position change near the position with a certain gap under the sieve plate; Inlet and drain pipe group for area inflow and outflow. The inlet and outlet pipes at one end inject the culture tail water into the area above the sieve plate, and the organic debris and other particulate matter in the tail water fall through the sieve plate to the bottom of the circulation tank, and the clean water flows out through the inlet and outlet pipes at the other end. During sewage discharge, inject high-pressure water flow into the area under the sieve plate through the inlet and outlet pipe groups, and the plugging trap jumps up quickly under the action of water pressure and seals the sieve holes on the sieve plate, so that the bottom dirt can flow from the bottom of the sieve plate. The inlet and outlet pipes at the other end are discharged and recycled as needed. The sewage water used for sewage treatment is relatively less, and the intensity of manual operation is greatly reduced.

In order to optimize the above-mentioned technical solution, the measures taken also include: the sealing flap is composed of at least two frame rods arranged parallel to each other and a group of support rods connected between the frame rods. The frame rods and the support rods are interlaced, so there is a large gap space, so the sinking dirt falling on the sieve plate can also pass through the blocking flap and fall to the bottom of the circulation tank. The blocking flap is provided with a blocking projection which is shaped to cooperate with the inner edge of the sieve hole. The shape of the plugging bump can be selected from cylindrical, conical, conical, prismatic, pyramidal, and truncated prisms according to the sieve hole. The preferred solution is that the upper end of the blocking protrusion is small and the lower end is large, so as to achieve a better sealing effect. There is also a limit blocking block with a small top and a large bottom on the plugging flap. The shape of the limit block is preferably conical, and the top or tip of the limit block is usually located in the screen hole. The blocking trap has a position-limiting effect in the process of rising. A planting plate with planting holes capable of planting plants is provided near the inner side of the upper edge of the circulation water tank. The root system of the plant can be passed through the planting hole to absorb nutrient-rich substances such as ammonia nitrogen in the upper layer of water. The planting board is covered with a porous foamed resin layer; adsorption plants are planted on the foamed resin layer. The foamed resin layer is used to fix plants, which can be operated by referring to the soilless culture method, and the technology is relatively mature and reliable. Adsorbing plants can reduce the eutrophication in the upper water and improve resource utilization.

Because the present invention adopts the sieve plate that divides the flow water tank into upper and lower two regions near the middle of the flow water tank; the sieve plate has sieve holes; there is at least one short-distance position change near the position with a certain gap below the sieve plate. The plugging flaps that can be fitted to block the screen holes; the two ends of the circulation tank are equipped with inlet and outlet pipe groups that can feed and drain the upper and lower areas. The inlet and outlet pipes at one end inject the culture tail water into the area above the sieve plate, and the organic debris and other particulate matter in the tail water fall through the sieve plate to the bottom of the circulation tank, and the clean water flows out through the inlet and outlet pipes at the other end. During sewage discharge, inject high-pressure water flow into the area under the sieve plate through the inlet and outlet pipe groups, and the plugging trap jumps up quickly under the action of water pressure and seals the sieve holes on the sieve plate, so that the bottom dirt can flow from the bottom of the sieve plate. The inlet and outlet pipes at the other end are discharged and recycled as needed. The sewage water used for sewage treatment is relatively less, and the intensity of manual operation is greatly reduced. Therefore, the present invention has the advantages of being capable of solid-liquid separation, automatic sewage discharge, less manual intervention, and convenient management.

Description of drawings

Fig. 1 is the three-dimensional structure schematic diagram of the embodiment of the present invention;

Fig. 2 is a schematic diagram of a disassembled structure of an embodiment of the present invention;

Fig. 3 is a schematic diagram of the plugging flap mechanism of the embodiment of the present invention;

Fig. 4 is a schematic diagram of a cross-sectional structure of an embodiment of the present invention in use.

detailed description

The present invention will be described in further detail below in conjunction with the attached examples.

Explanation of reference numerals: circulation water tank 1, plugging trap support 11, planting board support 12, planting board 2, planting hole 2a, sieve plate 3, sieve hole 3a, plugging trap 4, frame rod 4a, support rod 4b , Blocking bump 41, limit blocking block 42, inlet and outlet pipe group 5, normal pressure water inlet pipe 51, pressurized water inlet pipe 52, overflow pipe 53, sewage pipe 54, foamed resin layer 6, adsorption plant 6a.

Embodiment: Referring to Fig. 1 to Fig. 4 , the floating treatment device for aquaculture tail water includes a circulation tank 1 with an upper opening, wherein: a sieve plate 3 is provided near the middle of the circulation tank 1 to divide the circulation tank 1 into upper and lower areas There is a sieve hole 3a on the sieve plate 3; there is at least one plugging flap 4 that can fit and block the sieve hole 3a through a short-distance position change near the position with a certain gap under the sieve plate 3; the two ends of the flow tank 1 There are inlet and outlet pipe groups 5 that can feed and drain the upper and lower regions. The inlet and outlet pipe group 5 at one end injects the culture tail water into the area above the sieve plate 3, and the organic debris and other particulate matter in the tail water pass through the sieve plate 3 and fall into the bottom of the circulation tank 1, and the clean water passes through the inlet and outlet pipe group 5 at the other end flow out. During sewage discharge, inject higher-pressure water flow into the area under the sieve plate 3 through the inlet and drain pipe group 5, and the plugging flap 4 jumps up quickly under the action of water pressure and seals the sieve hole 3a on the sieve plate 3, The bottom dirt is discharged from the inlet and outlet pipe group 5 at the other end, and recycled as required. The sewage water used for sewage treatment is relatively less, and the intensity of manual operation is greatly reduced. The blocking flap 4 is composed of at least two frame rods 4a arranged parallel to each other and a set of support rods 4b connected between the frame rods 4a. The frame rods 4a and the support rods 4b are interlaced, so there is a large gap space, therefore, the sinking dirt falling on the sieve plate 3 can also pass through the blocking flap 4 and fall to the bottom of the circulation tank 1 . The blocking flap 4 is provided with a blocking projection 41 which is shaped to cooperate with the inner edge of the sieve hole 3a. The shape of the blocking protrusion 41 can be selected according to the sieve hole 3a such as cylindrical, conical, conical, prismatic, pyramidal, or truncated. The preferred solution is that the upper end of the blocking protrusion 41 is smaller and the lower end is larger, so as to achieve a better blocking effect. Also have the limit blocking block 42 that the top end is small and the bottom end is big on the blocking flap 4. The shape of this limit blocking block 42 is preferably conical, and the top or tip of the limit block 42 is generally located in the screen hole 3a. Therefore, it has a position-limiting effect during the rising process of the whole blocking flap 4. A planting board 2 having a planting hole 2a capable of planting plants is provided near the inner side of the upper edge of the circulation water tank 1 . The root system of the plant can be passed through the planting hole 2a to absorb nutrient-rich substances such as ammonia nitrogen in the upper layer of water. The planting board 2 is covered with a porous foamed resin layer 6; on the foamed resin layer 6, adsorption plants 6a are planted. The foamed resin layer 6 is used for fixing plants, and can be operated with reference to the soilless cultivation method, and the technology is relatively mature and reliable. The adsorption plants 6a can reduce the eutrophication in the upper water and improve resource utilization. The inlet and outlet pipe group 5 includes a normal pressure water inlet pipe 51 , a pressurized water inlet pipe 52 , an overflow pipe 53 and a sewage discharge pipe 54 . The normal pressure water inlet pipe 51 and the overflow pipe 53 communicate with the space above the sieve plate 3 of the circulation water tank 1, and the pressurized water inlet pipe 52 and the sewage discharge pipe 54 communicate with the space below the sieve plate 3 of the circulation water tank 1. The normal pressure water inlet pipe 51 is used to inject the culture tail water into the circulation water tank 1, the pressurized water inlet pipe 52 is used to wash the bottom dirt, the overflow pipe 53 is used to discharge clean water, and the sewage discharge pipe 54 is used to inject high-pressure water flow into the pressurized water inlet pipe 52 When the dirt is discharged.

Although the invention has been described in conjunction with preferred embodiments, it is not intended to limit the invention, and any person skilled in the art can implement various embodiments on the subject matter set forth herein without departing from the spirit and scope of the invention. Changes, replacements and modifications of equivalents, so the protection scope of the present invention should be determined by the scope defined by the proposed claims.

Claims (6)

1. The floating treatment device for tail water of aquaculture, including a circulation tank (1) with an upper opening, characterized in that: the circulation tank (1) is divided into upper and lower two parts near the middle of the circulation tank (1). The sieve plate (3) in the block area; the sieve plate (3) has a sieve hole (3a); there is at least one short-distance position change near the position with a certain gap under the sieve plate (3). A plugging flap (4) that can fit and block the sieve holes (3a); both ends of the circulation tank (1) are provided with inlet and outlet pipe groups that can feed and drain the upper and lower areas (5). 2. The floating treatment device for aquaculture tail water according to claim 1, characterized in that: said plugging flap (4) is composed of at least two frame rods (4a) arranged parallel to each other and connected to said A set of support rods (4b) between the frame rods (4a). 3. The floating treatment device for aquaculture tail water according to claim 1, characterized in that: the plugging flap (4) has a shape that can cooperate with the shape of the inner edge of the sieve hole (3a). Block the bump (41). 4. The floating treatment device for aquaculture tail water according to claim 1, characterized in that: the blocking flap (4) also has a limiting block (42) with a small top and a large bottom. 5. The floating treatment device for aquaculture tail water according to claim 1, characterized in that: a planting plate with a planting hole (2a) capable of planting plants is provided near the inner side of the upper edge of the circulation tank (1) (2). 6. The floating treatment device for aquaculture tail water according to claim 5, characterized in that: said planting board (2) is covered with a porous foamed resin layer (6); said foamed resin layer ( 6) Adsorption plants (6a) are planted on it.