CN110627244A - A gabion net mechanism suitable for pond aquaculture tail water treatment and its use method - Google Patents

Abstract

The invention provides a gabion net mechanism suitable for pond culture tail water treatment and a use method thereof, which belong to the field of pond culture wastewater treatment. The invention relates to a gabion mesh mechanism suitable for pond culture tail water treatment, comprising a filter device and an anti-blocking device adjacent to the filter device, the filter device includes a plurality of filter units adjacent to each other, and the filter units include alternately arranged The first gabion net and the second gabion net, the anti-blocking device includes a net cage attached to the filter device, two rollers erected inside the net cage, and a set of rollers that can rotate under the drive of the rollers. The cleaning net is provided with at least one row of cleaning brushes. In the present invention, a gabion mechanism suitable for pond culture tail water treatment and its use method can be manually operated during the water purification process, turning the roller to make the cleaning brush clean the anti-blocking device, avoiding congestion and loss of purified water Function.

Description

A gabion net mechanism suitable for pond culture tail water treatment and its use method

technical field

The invention belongs to the field of pond culture wastewater treatment, and in particular relates to a gabion mechanism suitable for pond culture tail water treatment and a use method.

Background technique

my country's inland freshwater fishery is mainly based on pond culture, with a wide variety of cultured species and diverse farming models. Most species have problems such as high breeding density and extensive farming models. As a result, a large amount of residual bait, aquatic animal excreta and other nitrogen Phosphorus pollutants are directly discharged into natural waters without treatment, causing the eutrophication of the surrounding water bodies in the aquaculture area to intensify. According to the preliminary survey results, the vast majority of aquaculture tail water belongs to inferior V-class water, which has caused huge pressure on the ecological environment and has become a limiting factor restricting the healthy and sustainable development of the freshwater aquaculture industry. Ecological treatment of aquaculture tail water It is imminent and has attracted the attention of relevant government departments. At present, Zhejiang has completed the task of treating the tail water of 800,000 mu of aquaculture ponds, and other related counties and cities have also carried out one after another. Among them, the filter dam has been widely used in the ecological treatment system of the tail water of the freshwater aquaculture pond because it can intercept the particulate pollutants in the tail water of the aquaculture and can effectively purify the water quality. It is an important unit of the tail water treatment system.

At present, the filter dams constructed for the treatment of aquaculture tail water mainly use hollow bricks as the main frame structure, the bottom is hardened with cement, and gravel and pebbles of different particle sizes are laid in the frame. A synergistic effect to achieve the purpose of filtering and purifying the tail water of aquaculture. However, the filling media in the existing filter dams are mostly dense filter materials such as sand and gravel, which cannot be stirred during the operation of the system. After less than two years of operation, matrix clogging will occur, which significantly reduces the treatment efficiency of the filter dam. However, when the matrix is blocked, all the fillers can only be dug out and washed, refilled, and replanted with aquatic plants. The amount of work is large, and the processing cost is significantly increased. The practical application is difficult, and it is not conducive to large-scale promotion. On the other hand, the price of hollow brick cement is relatively expensive, and professional construction is required, which increases construction costs, and is prone to collapse due to improper maintenance. Therefore, how to design an ecological filter dam system that is simple in construction, low in treatment cost, easy to maintain, and beautifies the environment on the basis of ensuring the treatment effect of aquaculture tail water is a key problem that needs to be solved urgently in the ecological engineering of aquaculture wastewater.

In the prior art, the depression and clogging in the structure of pond culture tail water treatment is not easy to clean, and it cannot be used continuously for a long time, and the water purification speed will decrease with the increase of the service life.

Contents of the invention

In view of this, the present invention provides a gabion mechanism suitable for pond culture tail water treatment and its use method. During the water purification process, the rotating roller can be manually operated to make the cleaning brush clean the anti-blocking device, so as to avoid congestion and loss of purified water function. At the same time, each layer of gabion nets is fixed by fixing columns and fixing holes to make the whole structure more stable. And the purification can be good.

The present invention is a gabion mesh mechanism suitable for pond culture tail water treatment, comprising a filter device and an anti-blocking device adjacent to the filter device, the filter device includes a plurality of filter units adjacent to each other, the The filter unit includes alternately arranged first gabion nets and second gabion nets, the upper side of the first gabion net has a first fixing hole, the lower side has a first fixing column, and the upper side of the second gabion net has a second Two fixing holes, the lower side has a second fixing column, the first fixing column can be inserted into the adjacent second fixing hole, the anti-blocking device includes a net box adjacent to the filtering device, two erected on The rollers inside the net cage and the cleaning nets that are sheathed on the rollers and can rotate under the drive of the rollers are provided with at least one row of cleaning brushes on the cleaning nets.

As preferably, the cage has two mesh surfaces and two fixed surfaces for connecting the mesh surfaces, so

The fixed surface is provided with a through hole, and the two ends of the roller pass through the through hole.

Preferably, the through holes include a first through hole arranged at the upper end of the fixing surface, and a second through hole arranged at the lower end of the fixing surface.

Preferably, the roller includes a first roller whose two ends pass through the first through hole, and whose two ends pass through the first through hole.

The second roller of the second through hole.

Preferably, the end of the first roller is fixedly connected to the auxiliary handle.

Preferably, the first gabion net and the second gabion net are rectangular parallelepiped.

As a preference, iron wires are used to fix the anti-blocking device and adjacent filter units.

A method for using a gabion net mechanism suitable for pond culture tail water treatment based on the foregoing, comprising the following steps:

(1) Determine the length of the filter dam and customize the first gabion net and the second gabion net that meet the length requirements, the first

The gabion net and the second gabion net are laid alternately. After laying a layer of gabion net, the gabion net is filled. The first gabion net is filled with volcanic stone layer, the first pebble layer, and the second gabion net. The net is filled with the second pebble layer and ceramsite layer from bottom to top to complete the filter device;

(2) Set up the anti-blocking device and attach it to the adjacent filter unit, and fix it with steel wire;

(3) Fix the planting pot on the top of the filter device and plant vetiver.

Preferably, the pebbles have a diameter of 5-8 cm, the ceramsite has a diameter of 3-5 cm, and the volcanic stone has a diameter of 5-8 cm.

Preferably, the thickness of the volcanic rock layer is 2-3 times the thickness of the first pebble layer, and the thickness of the ceramsite layer is 2 times the thickness of the second pebble layer.

A gabion mesh mechanism and usage method suitable for pond culture tail water treatment in the present invention can be manually operated during the water purification process, turning the roller to make the cleaning brush clean the anti-blocking device, avoiding congestion and loss of purified water Function. At the same time, each layer of gabion nets is fixed by fixing columns and fixing holes to make the whole structure more stable. Moreover, the purification can be good, and the pollutant degradation effect is better, especially the total phosphorus and ammonia nitrogen.

Description of drawings

Fig. 1 is the structural representation of a kind of gabion net mechanism suitable for pond culture tail water treatment provided in the specific embodiment of the present invention;

Fig. 2 is the structural representation of the first gabion net and the second gabion net of a kind of gabion net mechanism suitable for pond culture tail water treatment provided in the specific embodiment of the present invention;

Fig. 3 is the structural representation of the roller of a kind of gabion mesh mechanism that is applicable to pond culture tail water treatment provided in the specific embodiment of the present invention;

Fig. 4 is a schematic structural view of a cleaning net of a gabion net mechanism suitable for pond culture tail water treatment provided in a specific embodiment of the present invention;

Fig. 5 is a structural schematic diagram of filling filler when a gabion net mechanism suitable for pond culture tail water treatment provided in the specific embodiment of the present invention is actually used;

Among them: 1. Filtration device; 11. Filtration unit; 111. The first gabion net; 1111. The first fixing hole; 1112. The first fixing column; 112. The second gabion net; 1121. The second fixing hole; 1122 , the second fixed column; 2, the anti-blocking device; 21, the cage; 211, the mesh surface; 212, the fixed surface; 213, the through hole; 2131, the first through hole; 2132, the second through hole; 22, the roller ; 221, the first roller; 222, the second roller; 23, the cleaning net; 231, the cleaning brush; 24, the auxiliary handle.

Detailed ways

The present invention will be described in detail below in conjunction with specific embodiments.

Please refer to Fig. 1 to Fig. 4, a kind of gabion net mechanism suitable for pond culture tail water treatment, comprises filtering device 1, and the anti-blocking device 2 that sticks to described filtering device 1, and described filtering device 1 comprises multiple The filter unit 11 adjacent to each other, the filter unit 11 includes the first gabion net 111 and the second gabion net 112 arranged alternately, the upper side of the first gabion net 111 has the first fixing hole 1111, the lower side There is a first fixing column 1112, the upper side of the second gabion net 112 has a second fixing hole 1121, and the lower side has a second fixing column 1122, and the first fixing column 1112 can be inserted into the adjacent second fixing hole 1121 Among them, the second fixing column 1122 can be inserted into the first fixing hole 1111 of the first gabion net 111 under the adjacent second gabion net 112, so as to fix the gabion net and prevent the occurrence of Dislocation, to ensure the stability of the structure, the filter unit 11 is the first gabion net 111 and the second gabion net 112 arranged vertically, and the sequence arranged from top to bottom in the vertical direction is the first gabion net 111, the second gabion net 112 The second gabion net 112, the first gabion net 111, the second gabion net 112... Certainly as the surface of the first gabion net 111 of the first layer, there is no first fixing hole 1111, and the first gabion net of the last layer The second gabion net 112 does not have the second fixing column 1122, and the anti-blocking device 2 includes a net cage 21 adjacent to the filter device 1, two rollers 22 erected inside the net cage 21, a sleeve The roller 222 provided on the roller 22 and capable of rotating under the drive of the roller 22 is provided with at least one row of cleaning brushes 231 on the roller 222 to ensure that water can pass through. Multiple filter units 11 arranged side by side can improve the impact resistance of the gabion net and make the structure more stable.

The setting of the cleaning brush 231 is not easy to be too thick, and hinders the water flow on the one hand. Generally, 2-3 cleaning brushes 231 can be provided.

Described cage 21 has two mesh surfaces 211, two fixed surfaces 212 for connecting described mesh surfaces 211, and described fixed surface 212 is provided with through hole 213, and the two ends of described roller 22 pass through described through hole. Hole 213. The through hole 213 includes a first through hole 2131 disposed on the upper end of the fixing surface 212 , and a second through hole 2132 disposed on the lower end of the fixing surface 212 . The rollers 22 include a first roller 221 whose two ends pass through the first through hole 2131 , and a second roller 222 whose two ends pass through the second through hole 2132 . The end of the first roller 221 is fixedly connected to the auxiliary handle 24 .

In addition, the first gabion net 111 and the second gabion net 112 are rectangular parallelepiped. The anti-blocking device 2 and the adjacent filter unit 11 are fixed with iron wires.

When purifying the tail water of pond culture, the side of the gabion mesh mechanism with the anti-blocking device 2 should first touch the water to be filtered. The anti-blocking device 2 can intercept floating substances such as fallen leaves. The mesh size of the mesh surface 211 should be larger than that of the leaves. Smaller, the mesh should be appropriately smaller to achieve the effect of primary purification. The rollers 222 are sleeved on the two rollers 22, and when the rollers 22 are rotated, the rollers 222 are driven to rotate, and the cleaning on the rollers 222 The brush 231 rotates and contacts and rubs with the mesh surface 211 to remove residual pollutants on the surface 211 of the roller 222 and the surface 211 of the roller 222 to prevent congestion. At the same time, there is a mesh surface 211 in contact with the filter unit 11. Since the material is all mesh, when the cleaning brush 231 touches the mesh surface 211 attached to the filter unit 11, the cleaning brush 231 can also clean the filter unit 11. One side, this side is also the first to contact the sewage in the filter device 1, and it is more likely to be blocked. After cleaning this part, the phenomenon of clogging of the gabion mechanism can be well avoided.

The gabion net is made of high-corrosion-resistant, high-strength, ductile low-carbon steel wire or PVC-coated steel wire by mechanical weaving. The shape can be customized and the price is low. One is 2 meters long, 1 meter wide and 1 meter high. The gabion net only costs a few yuan, and can be stacked with each other, so the construction is simple.

A method for using a gabion net mechanism suitable for pond culture tail water treatment based on the foregoing, comprising the following steps:

(1) Determine the length of the filter dam. Customize the first gabion net 111 and the second gabion net 112 that meet the length requirements. The first gabion net 111 and the second gabion net 112 are laid alternately, and the individual gabion nets are determined. The gabion net is laid across the waterway with sewage flowing, and the gabion net is filled after laying a layer of gabion net. The first gabion net 111 is filled with volcanic rock layer from bottom to top, the first Cobblestone layer, the second gabion net 112 is filled with the second pebble layer and ceramsite layer from bottom to top (two filter units 11 can be laid at the same time to prevent dumping during the laying process). In this specific embodiment, there are two filter units 11. Each filling layer is covered with a gabion net cover, and the filter device 1 is built. For the laying structure of the filler, please refer to Figure 5;

(2) Set up the anti-blocking device 2 and attach it to the adjacent filter unit 11, and fix it with a steel wire;

(3) Fix the planting pot on the top of the filter device 1, plant vetiver, build a filter dam, and drain the sewage

Come here and start sewage purification.

Wherein, the diameter of the cobblestone is 5-8 cm, the diameter of the ceramsite is 3-5 cm, and the diameter of the volcanic stone is 5-8 cm. The thickness of the volcanic stone layer is 2-3 times of the thickness of the first pebble layer, and the thickness of the ceramsite layer is 2 times of the thickness of the second pebble layer.

For example, the laying height of volcanic rock is 70-80 cm, and the remaining 20-30 cm is laid with the first pebble layer; the laying height is the second pebble layer of 30-40 cm, and the ceramsite layer of 60-70 cm. This prevents the light filler from floating up. In order to facilitate cleaning after clogging, it is recommended to pack the filler in a nylon mesh bag and fill it. The mesh of the mesh bag should be as large as possible without the filler leaking out.

Volcanic stone or ceramsite has the characteristics of light weight, corrosion resistance, easy handling and good water permeability due to its low density, internal porosity, uniform shape and composition, and certain strength and firmness. Granular, small resistance to water flow, not easy to clog. Ceramsite has good adsorption and strong water purification ability, which improves the organization's ability to purify water quality. The higher density of pebbles can enhance the stability of the mechanism, and at the same time create a porous and large-pore structure to increase the water flow rate. The present invention organically combines the gabion net, volcanic stone and ceramsite to give full play to the advantages of the two and realize sewage purification.

After the gabion mechanism is built, a suggested filter dam is built. After purifying water for a period of time, the manual rotation assist handle 24 drives the roller 22 to rotate, and the cleaning brush 231 roller 222 faces 211.

Planting pots, place a planting pot every 40-50 cm. Vetiver should be planted in the pots. Vetiver has wide adaptability to climate and can grow in areas of -10-45°C. Its root system is well developed and wears well. Strong penetrating ability, generally up to 2-3 meters, up to 8 meters, not only that, the tensile strength of vetiver root system is high, reaching 40-120 MPa, with an average of 75 MPa, which is significantly higher than Douglas fir, Tensile strength of roots of various trees and shrubs such as poplar and willow. Its root system can not only pass through the soil layer to play an anchoring role, but also effectively improve the shear strength of the soil, thereby stabilizing the slope. It can be seen that vetiver has the advantages of low temperature resistance, fast growth, well-developed root system and high tensile strength. Play the role of anchoring.

In order to improve water purification, two gabion mesh mechanisms can be set in the same water purification channel

Select the pond culture tail water to carry out the water purification experiment, and measure the water quality indicators before and after purification, as follows

The water quality indicators purified by two gabion mesh mechanisms are very good, and the total nitrogen and phosphorus are greatly reduced.

A gabion mesh mechanism suitable for pond culture tail water treatment in the present invention and its use method can be manually operated during the water purification process, and the roller 22 can be rotated to make the cleaning brush 231 clean the anti-blocking device 2, so as to avoid congestion and loss The function of purifying water. At the same time, each layer of gabion nets is fixed by fixing columns and fixing holes to make the whole structure more stable. Moreover, the purification can be good, and the pollutant degradation effect is better, especially the total phosphorus and ammonia nitrogen.

The present invention is not limited to the specific embodiments described above, and various modifications and changes are possible in the present invention. Any modifications, equivalent replacements, improvements, etc. made to the above implementation methods based on the technical essence of the present invention shall be included in the protection scope of the present invention.

Claims (10)

1. The utility model provides a gabion net mechanism suitable for pond culture tail water is handled, a serial communication port, including filter equipment, with filter equipment pastes the stifled device that prevents who faces, filter equipment includes a plurality of filter unit that face each other, filter unit is including first gabion net, the second gabion net that sets up in turn, first gabion net upside has first fixed orifices, downside has first fixed column, second gabion net upside has second fixed orifices, downside has the second fixed column, first fixed column can insert in the adjacent second fixed orifices, prevent stifled device include with filter equipment paste the box with a net, two erect in box with a net inside roller bearing, cover are located the roller bearing can be in the drive of roller bearing pivoted washing net, it is equipped with one row at least cleaning brush on the washing net.

2. The gabion mesh mechanism suitable for pond culture tail water treatment according to claim 1, wherein the net cage is provided with two mesh surfaces and a fixing surface for connecting the mesh surfaces, the fixing surface is provided with through holes, and two ends of the roller pass through the through holes.

3. The gabion mesh mechanism suitable for pond culture tail water treatment according to claim 2, wherein the through holes comprise a first through hole arranged at an upper end of the fixing surface and a second through hole arranged at a lower end of the fixing surface.

4. The gabion mesh mechanism for tail water treatment of pond culture according to claim 3, wherein the rollers comprise a first roller having both ends passing through the first through hole and a second roller having both ends passing through the second through hole.

5. The gabion mesh mechanism suitable for pond culture tail water treatment according to claim 4, wherein the first roller end is fixedly connected with a power-assisted handle.

6. The gabion mesh mechanism suitable for pond culture tail water treatment according to claim 1, wherein the first gabion mesh and the second gabion mesh are cuboid.

7. The gabion mesh mechanism suitable for pond culture tail water treatment according to claim 1, wherein the anti-blocking device is fixed with the adjacent filter unit by an iron wire.

8. A use method of a gabion mesh mechanism suitable for pond culture tail water treatment according to any one of claims 1 to 7, is characterized by comprising the following steps:

(1) determining the length of the filter dam, customizing a first gabion mesh and a second gabion mesh which meet the length requirement, alternately laying the first gabion mesh and the second gabion mesh, filling the gabion mesh after laying a layer of gabion mesh, filling a volcanic stone layer and a first cobble layer in the first gabion mesh from bottom to top, filling a second cobble layer and a ceramsite layer in the second gabion mesh from bottom to top, and building the filter device;

(2) erecting the anti-blocking device, attaching the anti-blocking device to an adjacent filtering unit, and fixing the anti-blocking device by using a steel wire;

(3) fixing the planting pot on the top of the filtering device, and planting vetiver grass.

9. The use method of the gabion mesh mechanism suitable for the tail water treatment of the pond culture as claimed in claim 8, wherein the cobblestones are 5-8 cm in diameter, the ceramsite are 3-5 cm in diameter, and the vesuvianite are 5-8 cm in diameter.

10. The use method of the gabion mesh mechanism suitable for the tail water treatment of the pond culture according to claim 9, wherein the thickness of the volcanic stone layer is 2-3 times that of the first cobblestone layer, and the thickness of the ceramsite layer is 2 times that of the second cobblestone layer.