Collaborative ecological recycling system for farmland recession water and sludge

Abstract

The utility model discloses a farmland recession and sludge collaborative ecological recycling system which comprises one or more groups of sludge stirring units and sludge recession recycling units which are arranged according to the scale of a storage and stagnation pond, and each sludge stirring unit comprises an air compressor arranged on the shore, a branch air cylinder and a plurality of aeration pipes pre-buried at the bottom of the storage and stagnation pond. The compressed air outlet end of the air compressor is connected with the air distributing cylinder, the air distributing cylinder comprises a plurality of air distributing heads, the air outlet ends of vertical pipes of the air distributing heads are correspondingly connected with the air inlet ends of the aeration pipes, the vertical pipes are provided with first gate valves, the sludge recession recycling unit comprises a sludge recession recycling pump set and a sludge recession valve well, and the sludge recession valve well is arranged in the accumulation pond. The sludge recession recycling pump set is arranged in the sludge recession valve well, and the outlet end of the sludge recession recycling pump set is connected with the inlet end of the recycling header pipe. By using the system, the farmland recession water can be recycled, the sludge in the storage and retention pond can be recycled, the volume of the storage and retention pond is prevented from being reduced, nutrients in the sludge can be utilized, and multiple purposes are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of farmland drainage treatment, in particular to a farmland drainage and sludge coordinated ecological recycling system. Background Art

[0002] Controlling agricultural non-point source pollution is an important part of ecological and environmental protection and a requirement of national policy. In order to promote the construction of ecological civilization and promote the green development of agriculture, the state has introduced a series of policies and measures to strengthen the control and management of agricultural non-point source pollution. Under the current governance technology system, agricultural non-point source governance technology is shifting from single breakthroughs to integrated assembly. With the technological breakthrough of "recycling and reuse" of farmland drainage, storage ponds for storing farmland drainage have been more widely used. However, after a long period of operation, the solid suspended matter carried by the drainage from farmland settles to the bottom of the pond, resulting in a decrease in the volume of the storage pond; at the same time, some nutrients will also be deposited in the silt at the bottom of the pond, resulting in insufficient nutrient reuse.

[0003] Therefore, it is necessary to provide a farmland drainage and sludge coordinated ecological reuse system to solve the above technical problems. Utility Model Content

[0004] The utility model aims to provide a farmland water withdrawal and sludge coordinated ecological reuse system in view of the deficiencies in the prior art, which can not only always ensure the volume of the storage pond, but also make full use of the nutrients in the sludge.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A farmland drainage and sludge coordinated ecological reuse system comprises one or more sludge stirring units and sludge drainage reuse units arranged according to the scale of a detention pond, the sludge stirring unit comprises an air compressor arranged on the shore, a gas distribution cylinder and a plurality of aeration pipes pre-buried at the bottom of the detention pond, the air inlet end of the aeration pipe extends to the shore of the detention pond, the compressed air outlet end of the air compressor is connected to the gas distribution cylinder, the gas distribution cylinder comprises a plurality of gas distribution heads, the gas outlet end of each gas distribution head riser is correspondingly connected to the gas inlet end of an aeration pipe, a first gate valve is arranged on the riser, the sludge drainage reuse unit comprises a sludge drainage reuse pump group and a sludge drainage valve well, the sludge drainage valve well is arranged in the detention pond, the sludge drainage reuse pump group is arranged in the sludge drainage valve well, and the outlet end of the sludge drainage reuse pump group is connected to the inlet end of the reuse main pipe.

[0007] Preferably, the sludge withdrawal valve well is arranged as a Japanese-shaped structure, including a first well chamber and a second well chamber, the sludge withdrawal reuse pump group is arranged in the first well chamber, and one side of the first well chamber is arranged as a grid net.

[0008] Preferably, the side of the second well chamber is closed, the return main pipe extends from the first well chamber to the second well chamber and is connected to each return branch pipe respectively, a second gate valve is provided on the return main pipe in the second well chamber, and a third gate valve is provided on the return branch pipe.

[0009] Preferably, a sludge stirring unit valve well is provided around the outer sides of the air compressor, the air cylinder and the first gate valve.

[0010] Preferably, a plurality of aeration holes are provided on the surface of the aeration tube.

[0011] Preferably, the aeration pipe is a PVC pipe.

[0012] Preferably, the sludge agitation unit and the sludge water withdrawal and reuse unit can operate independently or in coordination.

[0013] Preferably, the sludge withdrawal and water reuse pump group includes a first sludge withdrawal and water reuse pump and a second sludge withdrawal and water reuse pump, one for use and one for backup.

[0014] Compared with the prior art, the utility model has the following advantages:

[0015] 1. This system can not only reuse the stored farmland drainage water to realize the irrigation of farmland, but also reuse the sludge in the storage pond to avoid the volume reduction of the storage pond due to sludge accumulation. At the same time, it recycles the nutrients settled in the sludge to achieve the purpose of reducing pollutant emissions, achieving three goals at one stroke.

[0016] 2. This system reuses nutrients in sludge, improves nutrient utilization, and reduces the use of chemical fertilizers.

[0017] 3. The sludge stirring unit and sludge drainage reuse unit of this system can be freely combined and configured, and the appropriate number can be built according to project requirements. This system can not only reuse farmland drainage, but also can synergistically reuse farmland drainage and sludge, providing new ideas and solutions for "nutrient reuse". BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the system structure of Embodiment 1 of the present utility model;

[0019] Figure 2 It is a structural schematic diagram showing that the air compressor, the air cylinder and the first gate valve are installed in the valve well of the sludge agitation unit;

[0020] Figure 3 This is a schematic diagram of the structure in which the sludge water return pump group is installed in the sludge water return valve well;

[0021] Figure 4 This is a schematic diagram of the system structure of Embodiment 2 of the present utility model;

[0022] Among them, 1-air compressor, 2-air cylinder, 3-aeration pipe, 4-first gate valve, 5-sludge agitation unit valve well, 6-sludge water return pump group, 7-sludge water return valve well, 701-first well chamber, 702-second well chamber, 8-reuse main pipe, 9-reuse branch pipe, 10-second gate valve, 11-third gate valve DETAILED DESCRIPTION

[0023] The present invention is further explained below in conjunction with the accompanying drawings and specific implementation methods. It should be understood that these implementation methods are only used to illustrate the present invention and are not used to limit the scope of the present invention. After reading the present invention, various equivalent forms of modifications to the present invention by those skilled in the art all fall within the scope defined by the claims attached to this application.

[0024] In the present utility model, unless otherwise clearly stipulated and limited, the terms such as "installation", "setting", "connection", "fixed connection" and the like should be understood in a broad sense. For example, it 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 an indirect connection through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the utility model according to the specific circumstances.

[0025] In the present invention, the directions or positional relationships indicated by terms such as "upper", "lower", "bottom", "top", etc. are based on the directions or positional relationships shown in the accompanying drawings. They are relational words determined only for the convenience of describing the structural relationships of the various parts or elements of the present invention. They do not specifically refer to any part or element in the present invention and cannot be understood as limitations on the present invention.

[0026] Example 1

[0027] like Figures 1 to 3As shown in the figure, this is the first embodiment of the present utility model, a collaborative ecological reuse system for farmland drainage and silt, which includes a group of silt agitation units and silt drainage and reuse units arranged according to the scale of the detention pond. The silt agitation unit includes an air compressor 1 installed on the shore, a manifold 2, and eight air diffuser pipes 3 embedded at the bottom of the detention pond. The air diffuser pipes are PVC pipes, and a number of air holes are opened on the surface of the air diffuser pipes. The inlet end of the air diffuser pipes extends to the shore of the detention pond. The outlet end of the compressed air of the air compressor is connected to the manifold. The manifold includes eight air distribution heads, and the outlet end of the riser of each air distribution head is correspondingly connected to the inlet end of an air diffuser pipe. A first gate valve 4 is installed on the riser. A brick-built silt agitation unit valve well 5 is provided around the outside of the air compressor, the manifold, and the first gate valve. The silt drainage and reuse unit includes a silt drainage and reuse pump group 6 and a silt drainage valve well 7. The silt drainage valve well is arranged in the detention pond and is set in a "day" - shaped structure, including a first well chamber 701 and a second well chamber 702. The silt drainage and reuse pump group is installed in the first well chamber. One side of the first well chamber is provided with a grille 703 for convenient water inlet. The outlet end of the silt drainage and reuse pump group is connected to the inlet end of a reuse main pipe 8. The reuse main pipe extends from the first well chamber to the second well chamber and is respectively connected to each reuse branch pipe 9. A second gate valve 10 is installed on the reuse main pipe located in the second well chamber, and a third gate valve 11 is installed on the reuse branch pipe located in the second well chamber. The side of the second well chamber is closed. The silt drainage and reuse pump group includes a first silt drainage and reuse pump and a second silt drainage and reuse pump, one for use and one for standby. The silt agitation unit and the silt drainage and reuse unit can operate independently or in cooperation with each other.

[0028] Principle and usage method of a collaborative ecological reuse system for farmland drainage and silt: When only farmland irrigation is required, just start any one of the silt drainage and reuse pumps in the silt drainage and reuse unit, and the farmland drainage in the detention pond can be reused for farmland irrigation. After two seasons of crop planting, there are a large number of solid suspended matters in the farmland drainage. The solid suspended matters settle to the bottom of the pond, resulting in a decrease in the volume of the detention pond. At this time, start the silt agitation unit, use the air compressor to generate compressed air, and fully mix the silt at the bottom of the pond and the farmland drainage through the manifold and the air diffuser pipes, and then reuse the silt and the drainage together to the farmland through the silt drainage and reuse pump. This can prevent the volume of the detention pond from decreasing due to silt accumulation, and at the same time recycle the nutrients settled in the silt, achieving the purpose of reducing pollutant emissions and realizing the irrigation of farmland, killing three birds with one stone.

[0029] Embodiment 2

[0030] As Figure 4 As shown in the figure, this is the second embodiment of the present utility model. The difference between this embodiment and Embodiment 1 is that: in this embodiment, there is no silt agitation unit valve well surrounding the outside of the air compressor, the manifold, and the first gate valve, but an open structure is adopted.

[0031] The principle and use method of the farmland drainage and sludge coordinated ecological reuse system: an open structure is adopted, and a sludge stirring unit valve well is not set on the outside of the air compressor, the air cylinder and the first gate valve. When the system is not needed, the air compressor and the air cylinder can be stored in the warehouse at any time, and then taken out and installed when used, which avoids the equipment from being exposed to the sun and rain and reduces equipment loss.

[0032] The above description shows and describes the preferred embodiments of the utility model. As mentioned above, it should be understood that the utility model is not limited to the form disclosed herein, and should not be regarded as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be modified within the scope of the utility model concept described herein through the above teachings or the technology or knowledge of the relevant field. The changes and modifications made by those skilled in the art do not depart from the spirit and scope of the utility model, and should be within the scope of protection of the claims attached to the utility model.

Claims

1. A farmland drainage and sludge coordinated ecological recycling system, characterized by: It comprises one or more sludge stirring units and sludge withdrawal and reuse units arranged according to the scale of the storage pond. The sludge stirring unit comprises an air compressor arranged on the shore, a gas cylinder and a plurality of aeration pipes pre-buried at the bottom of the storage pond. The air inlet end of the aeration pipe extends to the shore of the storage pond. The compressed air outlet end of the air compressor is connected to the gas cylinder. The gas cylinder comprises a plurality of gas heads. The gas outlet end of each gas head riser is correspondingly connected to the gas inlet end of an aeration pipe. The riser is provided with a first gate valve. The sludge withdrawal and reuse unit comprises a sludge withdrawal and reuse pump group and a sludge withdrawal valve well. The sludge withdrawal valve well is arranged in the storage pond. The sludge withdrawal and reuse pump group is arranged in the sludge withdrawal valve well. The outlet end of the sludge withdrawal and reuse pump group is connected to the inlet end of the reuse main pipe.

2. The farmland drainage and sludge coordinated ecological recycling system according to claim 1 is characterized by: The sludge withdrawal valve well is arranged in a Japanese-shaped structure, including a first well chamber and a second well chamber, the sludge withdrawal reuse pump group is arranged in the first well chamber, and one side of the first well chamber is arranged as a grid net.

3. The farmland drainage and sludge coordinated ecological recycling system according to claim 2 is characterized by: The side of the second well chamber is closed, the return main pipe extends from the first well chamber to the second well chamber and is connected to each return branch pipe respectively, a second gate valve is arranged on the return main pipe in the second well chamber, and a third gate valve is arranged on the return branch pipe.

4. The farmland drainage and sludge coordinated ecological recycling system according to claim 1 is characterized by: A sludge stirring unit valve well is arranged around the outer sides of the air compressor, the air cylinder and the first gate valve.

5. The farmland drainage and sludge coordinated ecological recycling system according to claim 1 is characterized by: A plurality of aeration holes are provided on the surface of the aeration pipe.

6. The farmland drainage and sludge coordinated ecological recycling system according to claim 1 is characterized by: The aeration pipe is a PVC pipe.

7. The farmland drainage and sludge coordinated ecological recycling system according to claim 1 is characterized by: The sludge stirring unit and the sludge water withdrawal and reuse unit can operate independently or in coordination.

8. The farmland drainage and sludge coordinated ecological recycling system according to claim 1 is characterized by: The sludge water withdrawal and recycling pump group comprises a first sludge water withdrawal and recycling pump and a second sludge water withdrawal and recycling pump, one for use and one for standby.

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