Tail water ecological purification system

Abstract

The utility model provides an ecological purification system for tail water. The ecological purification system comprises a sedimentation tank, a first filter dam, an aeration tank, a second filter dam and an ecological tank which are arranged in sequence, and integrated filter equipment arranged at the edge of the sedimentation tank, the integrated filtering equipment comprises an air source assembly, a first solid recycling machine, a second solid recycling machine, a first solid conveyor, a second solid conveyor and four microfilters for filtering water in the sedimentation tank; the air source assembly comprises an air compressor and a plurality of air storage tanks. The first solid recycling machine and the second solid recycling machine are arranged on the two opposite sides of the air source assembly correspondingly. Wherein two microfilters convey solids to the first solid recycling machine through a first solid conveyor, and the other two microfilters convey solids to the second solid recycling machine through a second solid conveyor; the integrated filtering equipment is compact in arrangement, convenient to operate and manage, and capable of improving the water treatment speed and avoiding accumulation of residual feed and excrement at the bottom of the sedimentation tank.

Description

Technical Field

[0001] The utility model relates to the technical field of aquaculture tail water treatment, and particularly relates to a tail water ecological purification system. Background Art

[0002] In the technology of aquaculture tail water treatment, the traditional three-pond two-dam process includes a sedimentation tank, an aeration tank, an ecological pond and two-stage filter dams. This process has problems such as too large floor area of the sedimentation tank, secondary pollution caused by the failure to timely separate the sedimented residual bait and feces, and difficult dredging.

[0003] Therefore, there is an urgent need for a solution to solve the problems existing in the existing three-pond two-dam process. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a tail water ecological purification system to solve the above technical problems in the prior art.

[0005] According to the first aspect of the utility model, a tail water ecological purification system is provided, which includes a sedimentation tank, a first filter dam, an aeration tank, a second filter dam and an ecological pond arranged in sequence, and also includes an integrated filtering device arranged at the edge of the sedimentation tank;

[0006] The integrated filtering device includes an air source assembly, a first solid recovery machine, a second solid recovery machine, a first solid conveyor, a second solid conveyor, and four microfiltration machines for filtering the water body in the sedimentation tank;

[0007] The air source assembly includes an air compressor and a plurality of gas storage tanks. The plurality of gas storage tanks respectively convey pressurized gas to the first solid recovery machine and the second solid recovery machine through pipelines; the first solid recovery machine and the second solid recovery machine are respectively arranged on opposite sides of the air source assembly; two of the microfiltration machines are arranged on the side of the first solid recovery machine far from the air source assembly and convey the filtered solids to the first solid recovery machine through the first solid conveyor, and the other two microfiltration machines are arranged on the side of the second solid recovery machine far from the air source assembly and convey the filtered solids to the second solid recovery machine through the second solid conveyor.

[0008] In an embodiment of the utility model, the microfiltration machine includes a rotating drum and a backwashing water pump assembly. An annular mesh cloth is arranged on the rotating drum, the backwashing water pump assembly is arranged outside the rotating drum, the solid particulate matter on the annular mesh cloth is separated from the annular mesh cloth by the action of the backwashing water pump assembly, and the water flow path of the backwashing water pump assembly passes through the annular mesh cloth to the corresponding first solid conveyor or the second solid conveyor.

[0009] In an embodiment of the present utility model, the first solid conveyor or the second solid conveyor includes a main network belt conveyor and two auxiliary network belt conveyors. The two auxiliary network belt conveyors respectively extend into the drums of the corresponding microfiltration machines and convey the solids output by the corresponding microfiltration machines to the main network belt conveyor.

[0010] In an embodiment of the present utility model, the first solid recovery machine or the second solid recovery machine includes an air knife device and a sewage collection tank. The sewage collection tank is arranged at the output end of the corresponding first solid conveyor or second solid conveyor. The air knife device is connected to the air storage tank through an air inlet pipe, and the gas output by the air knife device passes through the output end of the corresponding first solid conveyor or second solid conveyor into the sewage collection tank.

[0011] In an embodiment of the present utility model, the sedimentation tank and the ecological pond are arranged in parallel. The integrated filtration device is arranged at the front end of the sedimentation tank, and the aeration tank is arranged between the rear end of the sedimentation tank and the front end of the ecological pond.

[0012] In an embodiment of the present utility model, a first notch is arranged at the rear end of the sedimentation tank, and a second notch is arranged at the front end of the ecological pond. The first notch and the second notch are arranged opposite to each other. The first filtration dam extends along the first notch, the second filtration dam extends along the second notch, and the aeration tank is arranged between the first notch and the second notch.

[0013] In an embodiment of the present utility model, the ecological pond supplies water to the microfiltration machine through a water supply pipeline, and the water supply pipeline is connected with a filtration device.

[0014] In an embodiment of the present utility model, plants are arranged in the sedimentation tank; both sides of the first filtration dam or the second filtration dam are made of hollow bricks, and ceramsite and oyster shells are filled in the middle between the two sides.

[0015] In an embodiment of the present utility model, a nano-aeration disc and a geomembrane are laid at the bottom of the aeration tank, and the nano-aeration disc is connected to a blower.

[0016] In an embodiment of the present utility model, the ecological pond includes a shallow water area and a deep water area. Submerged plants are planted in the shallow water area, an ecological floating island is arranged in the deep water area, and a water spraying machine is arranged on the ecological floating island.

[0017] One beneficial effect of the present utility model is:

[0018] The tail water ecological purification system provided in this embodiment processes the aquaculture tail water through a sedimentation tank, a first filtration dam, an aeration tank, a second filtration dam, and an ecological pond arranged in sequence. The integrated filtration equipment arranged at the edge of the sedimentation tank filters the water body in the sedimentation tank through four microfiltration machines, which can improve the water treatment speed without increasing the area of the sedimentation tank. The solid impurities filtered out by the microfiltration machines are conveyed to the first solid recovery machine through the corresponding first solid conveyor or to the second solid recovery machine through the corresponding second solid conveyor, which can avoid the accumulation of a large amount of residual bait and feces at the bottom of the sedimentation tank, prevent secondary pollution of the water body, and do not require frequent dredging, saving labor; in addition, the integrated filtration equipment is compactly arranged and has a high integration degree, which can reduce the floor area and can be arranged in the equipment room, facilitating operation and management.

[0019] Other features and advantages of the present utility model will become clear from the following detailed description of the exemplary embodiments of the present utility model with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The drawings incorporated in the specification and forming a part of the specification illustrate embodiments of the present utility model and, together with the description, are used to explain the principles of the present utility model.

[0021] Figure 1 is a schematic diagram of the overall structure of the tail water ecological purification system provided by an embodiment of the present utility model;

[0022] Figure 2 is a top view of the integrated filtration equipment of the tail water ecological purification system provided by an embodiment of the present utility model;

[0023] Figure 3 is a schematic diagram of the structure of the first solid recovery machine, the first solid conveyor, and the corresponding two microfiltration machines of the tail water ecological purification system provided by an embodiment of the present utility model;

[0024] Figure 4 is a schematic diagram of the structure of the second solid recovery machine, the second solid conveyor, and the corresponding two microfiltration machines of the tail water ecological purification system provided by an embodiment of the present utility model;

[0025] Figure 5 is a schematic diagram of the overall structure of the tail water ecological purification system provided by the second embodiment of the present utility model.

[0026] Figures 1 to 5 The one-to-one correspondence between the names of the components and the reference numerals in is as follows:

[0027] In the figure, the reference numerals and their corresponding component names are as follows:

[0028] 11. Sedimentation tank; 111. First notch;

[0029] 12. First filtration dam;

[0030] 13. Aeration tank;

[0031] 14. Second filtration dam;

[0032] 15. Ecological pond; 151. Second notch; 152. Ecological floating island;

[0033] 20. Gas source assembly; 21. Gas storage tank; 22. Air compressor;

[0034] 30. First solid recovery machine; 31. First air knife device; 32. First sewage collection tank;

[0035] 40. Second solid recovery machine; 41. Second air knife device; 42. Second sewage collection tank;

[0036] 50. First solid conveyor; 51. First main road network belt conveyor; 52. First auxiliary network belt conveyor;

[0037] 60. Second solid conveyor; 61. Second main road network belt conveyor; 62. Second auxiliary network belt conveyor;

[0038] 70. Microfiltration machine; 71. Drum; 72. Backwash water pump assembly;

[0039] 80. Water supply pipeline; 81. Filtration device. Detailed implementation mode

[0040] Now, various exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. It should be noted that: Unless otherwise specifically stated, the relative arrangements, numerical expressions, and numerical values of the components and steps set forth in these embodiments do not limit the scope of the present invention.

[0041] The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way a limitation on the present invention or its application or use.

[0042] Technologies, methods, and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, the said technologies, methods, and devices should be regarded as part of the description.

[0043] In all the examples shown and discussed herein, any specific value should be construed as merely exemplary and not as a limitation. Therefore, other examples of the exemplary embodiments may have different values.

[0044] It should be noted that: Similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0045] In this text, terms such as "upper", "lower", "front", "rear", "left", and "right" are only used to represent the relative positional relationship between relevant parts, rather than limiting the absolute positions of these relevant parts.

[0046] In this text, terms such as "first" and "second" are only used for differentiation from each other, rather than indicating importance, order, and the prerequisite for each other's existence, etc.

[0047] In this text, terms such as "equal" and "same" are not strict mathematical and / or geometric restrictions, and also include errors that can be understood by those skilled in the art and are allowed in manufacturing or using, etc.

[0048] In this text, unless otherwise specified, the meaning of "a plurality of" is two or more. Unless otherwise specified, the numerical ranges in this text not only include the entire range within its two endpoints, but also include several sub-ranges contained therein. Embodiment 1

[0049] Figures 1 to 4 The first embodiment of a tail water ecological purification system provided by the present utility model is shown. The tail water ecological purification system of this embodiment includes a sedimentation tank 11, a first filter dam 12, an aeration tank 13, a second filter dam 14, and an ecological pond 15 arranged in sequence, and also includes an integrated filtering device arranged at the edge of the sedimentation tank 11.

[0050] The integrated filtering device includes an air source assembly 20, a first solid recovery machine 30, a second solid recovery machine 40, a first solid conveyor 50, a second solid conveyor 60, and four microfiltration machines 70 for filtering the water body in the sedimentation tank 11.

[0051] The air source assembly 20 includes an air compressor 22 and a plurality of gas storage tanks 21, and the plurality of gas storage tanks respectively convey pressurized gas to the first solid recovery machine 30 and the second solid recovery machine 40 through pipelines.

[0052] The first solid recovery machine 30 and the second solid recovery machine 40 are respectively arranged on opposite sides of the air source assembly 20. Among the four microfiltration machines 70, two of the microfiltration machines 70 are arranged on the side of the first solid recovery machine 30 away from the air source assembly 20, and convey the filtered solids to the first solid recovery machine 30 through the first solid conveyor 50; the other two microfiltration machines 70 are arranged on the side of the second solid recovery machine 40 away from the air source assembly 20, and convey the filtered solids to the second solid recovery machine 40 through the second solid conveyor 60.

[0053] The water in the sedimentation tank 11 is filtered by four micro - filters 70 and then returned to the sedimentation tank. The solid impurities filtered out by the micro - filters 70 are conveyed to the first solid recovery machine 30 through the corresponding first solid conveyor 50 or to the second solid recovery machine 40 through the corresponding second solid conveyor 60 for collection. They can be further composted and fermented for use as organic fertilizers.

[0054] Compared with the existing three - pond and two - dam process, the tail - water ecological purification system provided in this embodiment filters the water body through the four micro - filters 70 of the integrated filtering equipment, and collects the filtered solids through the first solid recovery machine 30 and the second solid recovery machine 40. It can improve the water treatment speed without increasing the area of the sedimentation tank, avoid the problem of a large amount of residual bait and feces accumulating at the bottom of the sedimentation tank 11, prevent secondary pollution of the water body, and does not require frequent dredging, saving labor.

[0055] The air - source component 20, the first solid recovery machine 30, the second solid recovery machine 40, the first solid conveyor 50, the second solid conveyor 60 and the four micro - filters 70 of the integrated filtering equipment are arranged compactly with a high degree of integration, which can reduce the floor area and can be arranged in the equipment room for convenient operation and management.

[0056] Specifically, as Figure 1 and Figure 2 shown, the air - source component 20, the first solid recovery machine 30, the second solid recovery machine 40, and the four micro - filters 70 in the middle are arranged in a straight line. The two micro - filters 70 corresponding to the first solid recovery machine 30 and the two micro - filters 70 corresponding to the second solid recovery machine 40 can be at a relatively far distance from each other, and are respectively close to the left and right sides of the sedimentation tank 11 to filter the water bodies on the left and right sides of the sedimentation tank 11, which is beneficial to improving work efficiency.

[0057] In some embodiments of this embodiment, as Figure 3 and Figure 4 shown, the micro - filter 70 includes a rotating drum 71 and a back - flush water - pump assembly 72. An annular mesh cloth (not shown in the figure) is provided on the rotating drum 71. The back - flush water - pump assembly 72 is arranged outside the rotating drum 71. The solid particles on the annular mesh cloth are separated from the annular mesh cloth by the action of the back - flush water - pump assembly 72, and the water flow path of the back - flush water - pump assembly 72 passes through the annular mesh cloth to the corresponding first solid conveyor 50 or second solid conveyor 60. The structures and principles of the four micro - filters 70 are the same.

[0058] In some embodiments of this embodiment, as Figure 2As shown, the first solid conveyor 50 or the second solid conveyor 60 includes a main road network belt conveyor and two auxiliary network belt conveyors. The two auxiliary network belt conveyors respectively extend into the drum 71 of the corresponding microfilter 70, and convey the solids output by the corresponding microfilter 70 to the main road network belt conveyor. The solids carried by the water flow of the backwash water pump assembly 72 of the microfilter 70 fall on the corresponding auxiliary network belt conveyor, and then are transported to the corresponding main road network belt conveyor. The main road network belt conveyor transports the solids to the corresponding first solid recovery machine 30 or the second solid recovery machine 40.

[0059] Specifically, the first solid conveyor 50 includes a first main road network belt conveyor 51 and two first auxiliary network belt conveyors 52. The two first auxiliary network belt conveyors 52 respectively extend into the drum 71 of the corresponding microfilter 70. The two first auxiliary network belt conveyors 52 are respectively connected to the first auxiliary network belt conveyor 52.

[0060] The second solid conveyor 60 includes a second main road network belt conveyor 61 and two second auxiliary network belt conveyors 62. The two second auxiliary network belt conveyors 62 respectively extend into the drum 71 of the corresponding microfilter 70. The two second auxiliary network belt conveyors 62 are respectively connected to the second main road network belt conveyor 61.

[0061] In some embodiments of the present embodiment, the first solid recovery machine 30 or the second solid recovery machine 40 includes an air knife device and a sewage collection tank. The sewage collection tank is arranged at the output end of the corresponding first solid conveyor 50 or the second solid conveyor 60. The air knife device is connected to the air storage tank 21 through an air inlet pipe. The gas output by the air knife device passes through the output end of the corresponding first solid conveyor 50 or the second solid conveyor 60 into the sewage collection tank.

[0062] Specifically, as Figure 3 shown, the first solid recovery machine 30 includes a first air knife device 31 and a first sewage collection tank 32. The first sewage collection tank 32 is arranged at the output end of the first solid conveyor 50. The first air knife device 31 is connected to the air storage tank 21 through an air inlet pipe. The gas output by the first air knife device 31 passes through the output end of the first solid conveyor 50 into the first sewage collection tank 32. More specifically, the gas output by the first air knife device 31 passes through the output end of the first main road network belt conveyor 51, and blows the solids on the output end of the first main road network belt conveyor 51 into the first sewage collection tank 32 below.

[0063] Specifically, as Figure 4As shown in the figure, the second solid recovery machine 40 includes a second air knife device 41 and a second sewage collection tank 42. The second sewage collection tank 42 is arranged at the output end of the second solid conveyor 60. The second air knife device 41 is connected to the air storage tank 21 through an air inlet pipe. The gas output by the second air knife device 41 passes through the output end of the second solid conveyor 60 and enters the first sewage collection tank 32. More specifically, the gas output by the second air knife device 41 passes through the output end of the second main road network belt conveyor 61, and blows the solids on the output end of the second main road network belt conveyor 61 into the lower second sewage collection tank 42.

[0064] In some embodiments of this embodiment, plants such as water lilies are arranged in the sedimentation tank 11, and the planting density is 1 to 2 plants per square meter. Both sides of the first filter dam 12 or the second filter dam 14 are made of hollow bricks, and ceramsite and oyster shells are filled in the middle between the two sides of the hollow bricks. The radius of the ceramsite and oyster shells is between 8 and 20 mm, and they are carried by a nylon mesh bag with a pore size of 6 to 8 mm.

[0065] In some embodiments of this embodiment, a nano-aeration disc and a geomembrane are laid at the bottom of the aeration tank 13. The geomembrane prevents the bottom mud of the aeration tank 13 from rising and blocking the air holes of the nano-aeration disc. The nano-aeration disc is connected to a blower, and the blower can be arranged beside the aeration tank 13.

[0066] In some embodiments of this embodiment, the ecological pond 15 includes a shallow water area and a deep water area. Submerged plants are planted in the shallow water area, and an ecological floating island is arranged in the deep water area. A water sprayer can be arranged on the ecological floating island to achieve the effects of oxygenation and landscape demonstration. Silver carp, bighead carp, snails, mussels, etc. can be stocked in the ecological pond 15. Reed, iris and other emergent plants can be planted on the shore of the ecological pond 15. Submerged plants such as Potamogeton malaianus and Vallisneria natans can be planted in the shallow water area. The ecological floating island in the deep water area is composed of several floating bodies and several planting baskets, and the ecological floating island can be made of polyethylene products. Embodiment 2

[0067] Figure 5 The second embodiment of a tail water ecological purification system provided by the present invention is shown. The difference between this embodiment and Embodiment 1 is that the sedimentation tank 11 and the ecological pond 15 of the tail water ecological purification system are arranged in parallel.

[0068] In this embodiment, the "front end" and "rear end" are defined according to the direction of water flow. The water in the sedimentation tank 11 flows from its "front end" to its "rear end", and the water in the ecological pond 15 flows from its "front end" to its "rear end". The integrated filtering device is arranged at the front end of the sedimentation tank 11, and the aeration tank 13 is arranged between the rear end of the sedimentation tank 11 and the front end of the ecological pond 15. Such an arrangement can make the tail water ecological purification system more compact and convenient for management.

[0069] In some embodiments of this embodiment, a first notch 111 is provided at the rear end of the sedimentation tank 11, and a second notch 151 is provided at the front end of the ecological pond. The first notch 111 and the second notch 151 are arranged opposite to each other. The first filter dam 12 extends along the first notch 111, the second filter dam 14 extends along the second notch 151, and the aeration tank 13 is arranged between the first notch 111 and the second notch 151. Through the above design, the structure of the tail water ecological purification system is more compact, and the lengths of the first filter dam 12 and the second filter dam 14 are longer, which can improve the filtration efficiency.

[0070] In some embodiments of this embodiment, the ecological pond 15 supplies water to the microfilter 70 through a water supply pipeline 80, and the water supply pipeline 80 is connected with a filtering device 81. The water body in the ecological pond 15 is transported to the backwash water pump assembly 72 of the microfilter 70 after passing through the filtering device 81.

[0071] The embodiments of the present invention have been described above. The above description is exemplary and not exhaustive, and is not limited to the disclosed embodiments. Many modifications and variations are obvious to those of ordinary skill in the art in the technical field without departing from the scope and spirit of the described embodiments. The selection of the terms used herein is intended to best explain the principles of the embodiments, practical applications, or improvements to the technology in the market, or to enable other ordinary skill in the art in the technical field to understand the disclosed embodiments. The scope of the present invention is defined by the appended claims.

Claims

1. An ecological purification system for tail water, characterized in that, It includes a sedimentation tank, a first filtration dam, an aeration tank, a second filtration dam, and an ecological pond arranged in sequence, and also includes an integrated filtration device provided at the edge of the sedimentation tank; The integrated filtration device includes an air source assembly, a first solid recovery machine, a second solid recovery machine, a first solid conveyor, a second solid conveyor, and four microfiltration machines for filtering the water body in the sedimentation tank; The air source assembly includes an air compressor and a plurality of gas storage tanks. The plurality of gas storage tanks respectively convey pressurized gas to the first solid recovery machine and the second solid recovery machine through pipelines; the first solid recovery machine and the second solid recovery machine are respectively arranged on opposite sides of the air source assembly; two of the microfiltration machines are arranged on the side of the first solid recovery machine away from the air source assembly and convey the filtered solids to the first solid recovery machine through the first solid conveyor, and the other two microfiltration machines are arranged on the side of the second solid recovery machine away from the air source assembly and convey the filtered solids to the second solid recovery machine through the second solid conveyor.

2. The tail water ecological purification system according to claim 1, wherein, The microfiltration machine includes a rotating drum and a backwashing water pump assembly. An annular mesh cloth is provided on the rotating drum, and the backwashing water pump assembly is arranged outside the rotating drum. The solid particles on the annular mesh cloth are separated from the annular mesh cloth under the action of the backwashing water pump assembly, and the water flow path of the backwashing water pump assembly passes through the annular mesh cloth to the corresponding first solid conveyor or the second solid conveyor.

3. The tail water ecological purification system according to claim 2, wherein, The first solid conveyor or the second solid conveyor includes a main road network belt conveyor and two auxiliary network belt conveyors. The two auxiliary network belt conveyors respectively extend into the rotating drums of the corresponding microfiltration machines and convey the solids output by the corresponding microfiltration machines to the main road network belt conveyor.

4. The tail water ecological purification system according to any one of claims 1 to 3, wherein, The first solid recovery machine or the second solid recovery machine includes an air knife device and a sewage collection tank. The sewage collection tank is arranged at the output end of the corresponding first solid conveyor or the second solid conveyor. The air knife device is connected to the gas storage tank through an air inlet pipe, and the gas output by the air knife device passes through the output end of the corresponding first solid conveyor or the second solid conveyor into the sewage collection tank.

5. The tail water ecological purification system according to claim 1, wherein, The sedimentation tank and the ecological pond are arranged in parallel. The integrated filtration device is provided at the front end of the sedimentation tank, and the aeration tank is provided between the rear end of the sedimentation tank and the front end of the ecological pond.

6. The tail water ecological purification system according to claim 5, wherein, A first notch is provided at the rear end of the sedimentation tank, a second notch is provided at the front end of the ecological pond, the first notch and the second notch are arranged opposite to each other, the first filter dam extends along the first notch, the second filter dam extends along the second notch, and the aeration tank is arranged between the first notch and the second notch.

7. The tail water ecological purification system according to claim 5, characterized in that The ecological pond supplies water to the microfilter through a water supply pipeline, and a filtering device is connected to the water supply pipeline.

8. The tail water ecological purification system according to claim 1, characterized in that Plants are arranged in the sedimentation tank; both sides of the first filter dam or the second filter dam are made of hollow bricks.

9. The tail water ecological purification system according to claim 1, characterized in that The bottom of the aeration tank is laid with a nano-aeration disc and a geomembrane, and the nano-aeration disc is connected to a blower.

10. The tail water ecological purification system according to claim 1, characterized in that The ecological pond includes a shallow water area and a deep water area. Submerged plants are planted in the shallow water area, an ecological floating island is arranged in the deep water area, and a water sprayer is arranged on the ecological floating island.

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