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Sand-protecting barrier made from biodegradable materials and preparation method thereof

A technology of biodegradable materials and configuration methods, which is applied in the field of sand prevention and control and environmental protection, can solve problems such as large-scale promotion and application, secondary pollution, etc., and achieve the effects of preventing sand loss, simple construction, and obvious effects

Active Publication Date: 2009-12-30
虞毅
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although conventional chemical fibers, plastics, etc. are used as the outer layer materials, and the sand barriers are filled with sand and soil obtained locally, in the arid and semi-arid sandy areas in Northwest China that lack plant-based sand barrier material resources, they are cheap, simple and easy to implement. At the same time, due to the non-biodegradability of these materials, it also caused a certain amount of secondary pollution, which also hindered the large-scale promotion and application of this technology. Therefore, it is necessary to develop a biodegradable It is a good way to save money and protect the environment by weaving degradable fiber materials into containers of certain shapes and specifications, and filling them with sand and soil from local materials. This is also the focus of today's technical personnel and experts in this field topic of discussion

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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  • Sand-protecting barrier made from biodegradable materials and preparation method thereof
  • Sand-protecting barrier made from biodegradable materials and preparation method thereof
  • Sand-protecting barrier made from biodegradable materials and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044]Embodiment 1: In the section where sand fixation is required on both sides of the road 3, the tiled sand barrier 1 made of polylactic acid fiber (PLA) adopts the tiled configuration method, and the tiled sand barrier 1 fabric is transported to the preset place for use Fill the sand funnel with sand to make it full in the natural state, and lay it flat on the preset ground. At this time, the height of the flat sand barrier 1 is the diameter of the cylinder, but limited by the actual gravity and other conditions, the flat sand barrier 1 The height of the barrier 1 will be slightly smaller than the diameter of the cylinder. The direction of the tiled sand barrier 1 is determined according to the direction of the local major wind. If there are two or more harmful wind directions, the grid configuration method is required. The grid size is preferably 1m×1m or 1m×2m or 2m×2m. If the spacing is too small, the cost will be increased, and if the spacing is too large, the protectio...

Embodiment 2

[0045] Embodiment 2: In the areas where sand fixing is required on both sides of the road 3, the tiled configuration method is adopted. After the tiled sand barrier 1 fabric is transported to the preset site, some psammophyte seeds are loaded while sand is loaded using the sand funnel. , after the tiled sand barrier 1 reaches saturation in the natural state, it is tiled on the preset ground. At this time, the height of the tiled sand barrier 1 is the diameter of the cylinder. The height of the type sand barrier 1 will be slightly smaller than the diameter of the cylinder. The direction of the flat sand barrier 1 is determined according to the direction of the local main wind. If there are two or more major wind directions in this area, the layout method needs to be adopted. The spacing of the layout method can be preferably 1m×1m or 1m×2m or 2m×2m. If the spacing is too small, the cost will be increased. Too much impact on the protective effect, because the seeds of psammophyt...

Embodiment 3

[0046] Embodiment 3: the low vertical sand barrier 2 fabric is transported to the preset location, the low vertical sand barrier 2 requires that the sand dune slope cannot exceed 30°, and the low vertical sand barrier 2 is filled with sand using an sand funnel to make it Reach the fullness in the natural state and knot the two ends of the low vertical sand barrier 2, and stand vertically on the preset ground. At this time, the height of the low vertical sand barrier 2 is the length of the cylinder minus the length of the knotted ends , the height of the low vertical sand barrier 2 is set to 15-30cm, and the fabric gap of the low vertical sand barrier 2 is suitable for no sand leakage. If there is only one major wind in one direction in a year, the row configuration method can be used. If there are two or more major wind directions in the area, the format configuration method should be used. The distance between the low vertical sand barriers 2 is based on the actual natural If...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Abstract

The invention relates to a sand-protecting barrier prepared from biodegradable materials, comprising a biodegradable polylactic acid fiber (PLA) textile, wherein the polylactic acid fiber (PLA) textile is made to a drum-shaped flush system sand-protecting barrier and a drum-shaped low vertical type sand-protecting barrier, diameters of the flush system sand-protecting barrier and the low vertical type sand-protecting barrier are 8-25 cm, and the height of the drum-shaped low vertical type sand-protecting barrier is 15-35 cm. A preparation method of the sand-protecting barrier comprises a flush system preparation method and a low vertical type preparation method, wherein the flush system preparation method and the low vertical type preparation method both comprise a grid type preparation method and a row type preparation method. The flush system sand-protecting barrier and the low vertical type sand-protecting barrier which are prepared by polylactic acid fibers (PLA) overcome secondary pollution and have low cost. The grid type preparation method and the row type preparation method adopted by the flush system sand-protecting barrier and the low vertical type sand-protecting barrier ensure the effective protection of the sandy soil of protected areas, prevent the sandy soil loss, are simple and have obvious effect.

Description

technical field [0001] The invention relates to a sand barrier, in particular to a sand barrier made of biodegradable polylactic acid fiber (PLA) fabric and a configuration method thereof, which belongs to the technical field of sand prevention and control and environmental protection. Background technique [0002] The formation of sandstorm is closely related to geographical location and climatic conditions. Once sandstorm is formed, it will cause great harm to industry, agriculture, nature, environment, and ecology. How to control sandstorms and reduce or prevent the negative impacts of sandstorms on human beings is a major issue that experts in various fields are very concerned about. In order to prevent the impact of wind and sand on human beings, sand barriers are widely used now. The so-called sand barrier is generally the abbreviation of mechanical sand barrier, which is various forms of barriers set on the sand surface with firewood, grass, branches, clay, pebbles a...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D3/00E01F7/02
Inventor 虞毅
Owner 虞毅
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