Scale-resistant type salt elimination material-filtering corrugated tube in saline alkali soil and preparation method thereof

Abstract

The invention discloses a scale-resistant type salt elimination material-filtering corrugated tube in saline alkali soil and a preparation method thereof. The material-filtering corrugated tube comprises an outer wall tube which is of a corrugated structure and an inner wall tube which is of a smooth structure; a functional hydrophobic layer is sprayed on the inner wall of the inner wall tube; theouter wall tube comprises the following components of high density polyethylene, petroleum resin, organic fiber, calcium carbonate, rosin, calcium stearate, zinc oxide, thiodipropionic acid and chlorinated paraffin; and the inner wall tube comprises the following components of rigid polyvinyl chloride, petroleum resin, calcium carbonate, zinc stearate, vinyl ester resin and talcum powder. The outer wall tube of the material-filtering corrugated tube is both flexible and rigid, so that the corrugated tube has high resistance to a soil load and good flexibility and can be conveniently and continuously laid in the soil; and the functional hydrophobic layer is sprayed on the inner wall, so that the smooth surface of the inner wall tube simultaneously has dual-hydrophobic performance, low adhesion and self-cleaning performance, and the problem that scale deposition is prone to occurring on the inner wall of the material-filtering corrugated tube in the salt elimination process is solved.

Description

technical field [0001] The invention belongs to the technical field of salt discharge control in saline-alkali land, and in particular relates to a saline-alkali land anti-scaling type salt-removal filter wave tube and a preparation method thereof. Background technique [0002] An important part of saline-alkali land management is to regulate the soil salinity. In the vertical aspect, it is to regulate the upward movement and downward movement of soil salt, restrain the upward movement and promote the downward movement. At present, the method of burying hidden pipes in saline-alkali land and using fresh water to irrigate is usually used, so that the salt in the upper layer of the soil will drop with the water level, and the salt water will be discharged by using hidden pipes. [0003] Underground pipes usually use plastic pipes, which have the advantages of good corrosion resistance, light weight, and convenient molding. The disadvantages are low strength and poor oxidation ...

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Problems solved by technology

[0003] Underground pipes usually use plastic pipes, which have the advantages of good corrosion resistance, light weight, and convenient molding. The disadvantages are low strength and poor oxidation resistance. It is easy to precipitate inorganic salts or form scale deposits on the inner wall of the filter wave tube. On the one hand, the scale will easily affect the slope ratio of the hidden tube and cause poor salt discharge; on the other hand, the scale will easily block the water inlet hole on the tube wall from the inside of the tube. Dead, causing the salty water can not enter the dark tube smoothly, thus affecting the effect of salt discharge

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