Overflow dam suitable for pond tail water treatment in cold and arid areas
By designing overflow dams and flexible purification devices for ponds in cold and arid regions, the ecological purification and recycling of pond tailwater has been solved, improving water resource utilization efficiency, reducing costs and disease risks, and achieving ecological treatment.
Patent Information
- Application Number
- CN202422939668.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-29
- Publication Date
- 2025-11-07
- Estimated Expiration
- 2034-11-29
AI Technical Summary
The discharge and utilization of pond aquaculture wastewater in cold and arid regions pose problems such as water waste, pathogen pollution risks, and increased costs. Existing technologies are insufficient to meet the needs of ecological recycling.
Design an overflow dam suitable for the treatment of pond tailwater in cold and arid regions. The dam adopts an inverted trapezoidal concrete filter structure, combined with a flexible purification device and a retaining wall system, including flexible brushes and retaining wall design, to achieve suspended solids sedimentation and nitrogen and phosphorus elimination, forming an ecological purification treatment system.
It improves water resource utilization efficiency, reduces aquaculture costs and disease risks, realizes the ecological recycling of pond tailwater, and meets the production needs of discontinuous discharge.
Smart Images
Figure CN223523064U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to the related technical field of ecological management of breeding tail water, and specifically relates to an overflow dam suitable for tail water management of ponds in cold and arid regions. BACKGROUND
[0002] Located in the cold and arid region of northwest China, the water resources are unevenly distributed in time and space, it is high temperature and little rain in summer, and it is low temperature and severe cold in winter, and the special climatic conditions make the pond culture have typical regional characteristics, mainly manifested as: the pond culture is scattered, the degree of concentration is low, and the pond culture is mainly carried out in most areas. In most areas, there are forest land, farmland, grassland and other non-fishery land around the pond, and the pond culture mainly uses underground water as the main water source. During the culture period, the pond tail water is discharged and has the demand of recycling. However, the existing pond tail water discharge is to take the alkali discharge channel around the pond as the main body of tail water storage, or to discharge and evaporate and seep naturally. Affected by the beginning and end of the pond production period in spring and autumn, the capacity of the alkali discharge channel for concentrated discharge of tail water is limited, some places adopt the way of "pouring water" among ponds to realize the recycling of tail water, but face the problem of pathogenic pollution risk; the natural evaporation and seepage caused by random discharge of water resources waste, the cost of breeding water increases obviously, and the water resources are more tense.
[0003] Therefore, improving the utilization efficiency of water resources and realizing ecological circulation have become the basic requirements of the local fishery culture water.
[0004] In order to solve the technical problems of pond culture tail water discharge and utilization in the region, it is necessary to design a tail water ecological purification and recycling process suitable for the regional climate conditions and the characteristics of pond culture, so as to improve the utilization efficiency of resources, reduce the cost and disease risk of culture, and promote the green and ecological development of industry. CONTENT OF THE UTILITY MODEL
[0005] In order to solve the problems in the background art, the utility model provides an overflow dam suitable for tail water management of ponds in cold and arid regions, which has the advantages of meeting the production mode of discontinuous discharge of tail water during the culture period.
[0006] In order to achieve the above purpose, the utility model provides the following technical scheme: an overflow dam suitable for tail water management of ponds in cold and arid regions, comprising a filter dam, the filter dam is in an inverted trapezoidal structure with the upper part being wide and the lower part being narrow, a slope protection is arranged on the filter dam, the filter dam is a concrete pouring dam body, the bottom of the filter dam is lower than the pond drain pipe opening, first and second retaining walls are arranged in front of and behind the filter dam respectively, the first retaining wall is 1000mm higher than the second retaining wall, and the distance between the first retaining wall and the second retaining wall is 3000mm for installing a flexible purification device.
[0007] The flexible cleaning device comprises a support, a fixing rod and a flexible brush, wherein the support is composed of a top surface and a column, the support is galvanized square steel, the top surface is made of transversely spaced square steel and longitudinally spaced square steel, and a plurality of squares are welded;
[0008] The inner side of the square is re-welded with angle steels of the same length for supporting the flexible brush hanging rod.
[0009] Preferably, the fixing rod is a galvanized steel pipe, the fixing rod is installed on the support, the length of the fixing rod is equal to the distance between the two side angle steels in the square, the spacing between the fixing rods is 10-20 cm, and the fixing rod is fixed in position at both ends.
[0010] The flexible brush is a water treatment twisted wire brush.
[0011] The handle material of the flexible brush is 304 stainless steel, and the fixing rod is located at a position 15 cm away from the bottom of the filter dam.
[0012] Preferably, the flexible brush is hung on the fixing rod, and the hanging is made by using double-layer steel wire integrated forming and coiling to make a hanging ring.
[0013] Preferably, the filter dam and the slope are sequentially provided with gravel soil, natural gravel cushion and concrete pouring layer from bottom to top, and the thickness of the gravel soil and the concrete pouring of the filter dam are greater than those of the slope.
[0014] Preferably, the top of the first retaining wall and the second retaining wall is inverted trapezoidal in shape, a φ75mm PVC pipe is pre-embedded in the first retaining wall as a tail water overflow hole, the lowest position of the PVC pipe overflow hole is flush with the bottom of the filter dam, and the highest position is the highest water level of tail water discharge.
[0015] Preferably, the concrete parameters of the first retaining wall and the second retaining wall are as follows: strength C30 or above, and frost resistance grade F350.
[0016] Compared with the prior art, the utility model has the beneficial effects as follows:
[0017] A filter dam process suitable for pond tail water treatment in cold and arid regions meets the ecological purification needs of breeding tail water under regional climate and geographical conditions, is beneficial to the settlement of suspended solids and the primary consumption and utilization of nitrogen and phosphorus in breeding tail water, meets the production mode of discontinuous discharge of tail water during the breeding period on one hand, and meets the ecological treatment requirements on the other hand. BRIEF DESCRIPTION OF DRAWINGS
[0018] Figure 1 It is a schematic view of the plane arrangement structure of the utility model;
[0019] Figure 2 It is a schematic view of the first retaining wall structure of the utility model.
[0020] Figure 3 It is the second retaining wall structure schematic view of the utility model.
[0021] Figure 4 It is the overhead structure schematic view of the utility model flexible purification device
[0022] Figure 5 It is the section structure schematic view of the utility model flexible purification device
[0023] Figure 6 It is the brush suspension node schematic view of the utility model flexible purification device
[0024] Figure 7 It is the brush suspension section schematic view of the utility model flexible purification device
[0025] Figure 8 It is the brush manufacturing schematic view of the utility model flexible purification device. DETAILED DESCRIPTION
[0026] The technical solutions in the embodiments of the utility model will be apparently and completely described in conjunction with the drawings in the embodiments of the utility model, and obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without making creative efforts belong to the range protected by the utility model.
[0027] As Figures 1 to 8 The utility model provides a kind of overflow dam suitable for cold arid region pond tail water treatment, including filter dam, the filter dam is inverted trapezoidal structure of upper wide lower narrow, slope protection is arranged on the filter dam, slope protection is designed with different inclination, the filter dam is concrete pouring dam body, the bottom of filter dam is lower than pond drain pipe mouth, so that pond drain pipe mouth is located at high place to guide water flow to be filtered in filter dam, first retaining wall and second retaining wall are respectively arranged before and after the filter dam, first retaining wall is located after sedimentation tank, and the main role is to further remove fine suspended solids in water body;The content of suspended solids in water body can be reduced by the filtering effect of first retaining wall, to provide relatively clean water quality for subsequent treatment process, second retaining wall is located after aeration tank, and its main role is to further purify water quality, especially after increasing water body dissolved oxygen in aeration tank, it is helpful to accelerate the decomposition of organic matter and the volatilization of harmful substances in water body, second retaining wall is helpful to reduce the concentration of nitrogen element and phosphorus element in breeding tail water by filtering effect, to realize the further purification of water quality, first retaining wall is higher than second retaining wall 1000mm, the interval between first retaining wall and second retaining wall is 3000mm for installing flexible purification device.
[0028] The flexible purification device comprises a support, a fixing rod and a flexible brush, wherein the support is composed of a top surface and a column, the support is a galvanized square steel, which can effectively improve the corrosion resistance of the square steel, avoid rust and fracture after long-term placement in water, and the top surface is welded by horizontal and vertical square steels into several squares.
[0029] The same length angle steels are welded on the inner side of the square to support the flexible brush hanging rod, so as to place the flexible brush and set it vertically downward by gravity.
[0030] Specifically, the fixing rod is a galvanized steel pipe, which is installed on the support, has a length equal to the distance between the two angle steels in the square, is fixed by the support, and is controlled to keep a uniform horizontal position, the distance between the fixing rods is 10-20 cm, and the fixing rod is fixed in position at both ends.
[0031] The flexible brush is a water treatment twisted wire brush, which can prolong the service life of the brush and better intercept floating objects in the water body.
[0032] The handle of the flexible brush is made of 304 stainless steel to avoid rust, the fixing rod is located 15 cm away from the bottom of the filter dam, the flexible brush is hung on the fixing rod, the hanging structure is made of double-layer steel wire and is integrally formed into a loop, the loop structure can be directly fixed to the outside of the angle steel for positioning, and the loop structure is convenient for the operator to take.
[0033] The filter dam and the slope are sequentially provided with gravel soil, natural gravel cushion and concrete pouring layer from bottom to top, the thickness of the gravel soil and the pouring concrete of the filter dam are greater than those of the slope, the filtering effect on water quality is improved, the top of the wall body of the first and second retaining walls is in an inverted trapezoidal shape, a φ75mm PVC pipe is embedded in the wall body of the first retaining wall as a tail water overflow hole, the lowest position of the PVC pipe overflow hole is flush with the bottom of the filter dam, and the highest position is the highest water level of tail water discharge, the PVC plum blossom pipe has a porous integrated structure, good rigidity and stress uniformity, a smooth inner wall and a small friction coefficient, is convenient for cable penetration, and is easy to construct, has multiple hole positions, can reserve pipe holes, and improves the utilization rate of communication hole positions, the concrete parameters of the first and second retaining walls are as follows: strength C30 or above, frost resistance grade F350, and are suitable for engineering environments requiring high frost resistance to prevent concrete frost injury, frost cracking and leakage in winter or areas with low winter temperature.
[0034] Working principle and process:
[0035] The flexible purification device is composed of a flexible brush structure used for purification through a support, a fixed rod, and the like, the first retaining wall structure is provided with plum blossom overflow hole structure, which can effectively prevent the influence of sundries in the tail water of the ecological ditch on the blockage of the brush, and the installation of the PVC plum blossom pipe is more convenient, effectively saving the construction difficulty in the construction process of the first retaining wall, and the second retaining wall is arranged to be lower than the first retaining wall by 1000mm, so that the minimum water level of the water body in the filter dam can be maintained, the death of the microorganisms attached to the brush due to discontinuous discharge of the tail water is prevented, and the primary purification effect of the tail water is reduced, after the flexible purification device is installed with the flexible brush, the grating plate is used to cover for convenient management, the management in the operation process is facilitated, the first retaining wall and the second retaining wall are arranged, and the sedimentation tank, the aeration tank and the ecological purification tank are arranged, so as to jointly constitute a three-dimensional ecological treatment system, the filter dam is designed in a sandwich structure, forms a semi-water-blocking structure, raises the upstream water level, forms a pre-positioned reservoir in the upstream, forms a water level difference between the dam and the downstream, under the power, the sewage penetrates downward in front of the dam, effectively improves the water quality treatment effect, reduces the discharge of pollutants, and is more effective for the ecological treatment of the tail water of the pond.
[0036] It should be noted that, in the present document, relational terms such as first and second and the like can be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus.
[0037] Although the embodiments of the present application have been shown and described, it is to be understood that for the purpose of the present application, the embodiments change, modify, replace and vary in many ways without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.
Claims
1. An overflow dam suitable for treating tail water of a pond in a cold and arid region, comprising a filter dam, characterized in that, The filter dam is in an inverted trapezoidal structure with wide top and narrow bottom, is provided with a slope protection, is a concrete pouring dam body, the bottom of the filter dam is lower than the pond drain pipe opening, the first and second retaining walls are respectively arranged in front and back of the filter dam, the first retaining wall is 1000mm higher than the second retaining wall, the first and second retaining walls are spaced apart by 3000mm for mounting the flexible purification device; The flexible purification device comprises a support, a fixing rod and a flexible brush, wherein the support is composed of a top surface and a column, the support is a galvanized square steel, the top surface is formed by welding a plurality of square grids by using square steels with horizontal and vertical spacing; The square grids are welded with angle steels of the same length on the inner side in the longitudinal direction for supporting the flexible brush suspension rod.
2. The spillway according to claim 1, characterized in that: The fixing rod is a galvanized steel pipe, is mounted on the support, has a length equal to the distance between the two side angle steels in the square grid, and is spaced apart by 10-20cm, and the fixing rod is positionally fixed at both ends; The flexible brush is a water treatment twisted wire brush. The brush handle of the flexible brush is made of 304 stainless steel, and the fixing rod is located at a position 15cm away from the bottom of the filter dam.
3. The spillway according to claim 2, characterized in that: The flexible brush is suspended on the fixing rod, and the suspension is made by using double-layer steel wire integrated forming and coiling to make a hanging ring.
4. The spillway dam of claim 2, wherein: The filter dam and the slope protection are sequentially provided with gravel soil, natural gravel cushion and concrete pouring layer from bottom to top, and the thickness of the gravel soil and the concrete pouring layer of the filter dam is greater than that of the slope protection.
5. The spillway dam of claim 4, wherein: The top of the first and second retaining walls is in an inverted trapezoidal shape, a φ75mm PVC pipe is pre-embedded in the first retaining wall as a tail water overflow hole, the lowest position of the PVC pipe overflow hole is flush with the bottom of the filter dam, and the highest position is the highest water level of tail water discharge.
6. The spillway dam of claim 2, wherein: The concrete parameters of the first and second retaining walls are as follows: strength C30 or above, and frost resistance grade F350.