Chemical sand fixing agent application device and method

An applicator and sand-fixing agent technology, applied in soil protection, construction, infrastructure engineering, etc., can solve the problems that rainwater cannot infiltrate smoothly to supplement deep soil moisture, seed vegetation recovery is unfavorable, and sandy soil respiration is restricted, etc., to achieve Improve wind erosion resistance, improve sand fixation effect, and reduce adverse effects

Inactive Publication Date: 2015-12-09
BEIJING FORESTRY UNIVERSITY
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The traditional chemical sand-fixing method is to apply the sand-fixing agent through a large-area spraying method, but for fixing large-area sand dunes, this traditional chemical sand-fixing method has the disadvantages of large amount of sand-fixing agent and high cost; in addition, the invention of the present invention People found that this traditional chemical sand fixation method is easy to form an impermeable consolidation layer on the surface of the sand layer, which will not only limit the respiration of the sandy soil, but also cause rainwater to fail to infiltrate smoothly to replenish the deep soil moisture, which will hinder the germination of seeds. and the restoration of vegetation have a very adverse impact

Method used

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  • Chemical sand fixing agent application device and method
  • Chemical sand fixing agent application device and method
  • Chemical sand fixing agent application device and method

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Experimental program
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Embodiment approach

[0036] (1) if figure 1 and figure 2 As shown, the nozzle 1 preferably adopts an inverted cone with a vertical through hole 11 in the middle, and this inverted cone can prevent sand from entering the vertical through hole 11 to a certain extent. The chemical sand-fixing agent can be injected into the sand through the vertical through hole 11, and the bottom liquid outlet of the vertical through hole 11 is exactly the liquid outlet of the nozzle 1, so the aperture of the bottom liquid outlet of the vertical through hole 11 can be Choose flexibly according to different geological conditions and sand conditions, but the best range is 0.2-0.5mm.

[0037] In practical applications, the nozzle 1 is best made of high-strength stainless steel, which can not only improve the impact resistance of the nozzle 1, but also reduce the retention of sand and soil on the nozzle 1, which is easy to clean; even if sand and soil accidentally enter the vertical channel In the hole 11, it is also ...

Embodiment 1

[0072] Such as Figure 1 to Figure 11 As shown, the chemical sand-fixing agent is applied to a mobile sand dune using the above-mentioned chemical sand-fixing agent application method, and the specific steps are as follows:

[0073] (1) According to the geological conditions and sandy conditions of the mobile sand dunes, it is determined to select a nozzle 1 with a liquid outlet aperture of 0.2mm; according to the implementation density, it is determined that the nozzles 1 are arranged in a matrix of 4X3 at the bottom of the liquid separator 2, and two adjacent The distance between the nozzles 1 is 10cm; according to the above-mentioned structure, the components of the chemical sand-fixing agent applicator are assembled together, and the prepared chemical sand-fixing agent with a mass concentration of 10% is loaded into the liquid storage tank 4, and then dragged The load-bearing vehicle 7 moves the assembled chemical sand-fixing agent application device to the application sit...

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Abstract

The invention discloses a chemical sand fixing agent application device and method. The application device comprises nozzles (1), a liquid distributing plate (2), a liquid conveying pipe (3), a liquid storage tank (4) and a load bearing vehicle (7), wherein a chemical sand fixing agent is stored in the liquid storage tank (4); the liquid distributing plate (2) is communicated with the liquid storage tank (4) through the liquid conveying pipe (3); the chemical sand fixing agent in the liquid storage tank (4) flows into the liquid distributing plate (2) through the liquid conveying pipe (3); the nozzles (1) are vertically and uniformly distributed at the bottom of the liquid distributing plate (2); the chemical sand fixing agent entering the liquid distributing plate (2) is divided into the nozzles (1), and is injected onto sand through the nozzles (1), so as to be applied onto the sand through point injection. According to the chemical sand fixing agent application device and method, the sand fixing effect can be improved, the effective utilization rate of the sand fixing agent is increased, the application amount of the sand fixing agent is reduced, the condition that a water-proof consolidated layer is formed on the surface of a sand bed can be effectively avoided, the adverse effects on soil infiltration performance are reduced, and resistance on seed germination is reduced, so that the recovery rate of desertification can be greatly improved.

Description

technical field [0001] The invention relates to the technical field of desertification prevention and control, in particular to a chemical sand-fixing agent application device and application method. Background technique [0002] At present, desertification has become a major ecological environment problem in the world today. my country's current desertification area is 2.62×10 6 km 2 , accounting for 27.33% of the total land area, and it is getting worse and worse, which has seriously affected people's production and life. Therefore, it is imperative to control the expansion of desertification area and effectively implement ecological restoration. [0003] Chemical sand fixation is a typical method for fixing mobile sandy land. The traditional chemical sand-fixing method is to apply the sand-fixing agent by spraying a large area, but for fixing large-area sand dunes, this traditional chemical sand-fixing method has the disadvantages of large amount of sand-fixing agent a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D3/12
Inventor 高广磊于明含丁国栋周金星赵媛媛李旭王岳赛克
Owner BEIJING FORESTRY UNIVERSITY
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