Rolling and hot melting process of producing integral plastic draining belt for reinforcing soft foundation

Abstract

The rolling and hot melting process of producing integral plastic draining belt for reinforcing soft foundation includes the following steps: extruding stoved and mixed core material in an extruder to form plate; rolling and setting the plate in a core plate rolling and setting apparatus to form draining channel filter element with toothed ribs; combining the core plate and filtering cloth in a drawing apparatus; hot melting to compound the core plate and filtering cloth in a hot rolling apparatus to form one integral; cutting into required width and marking length size in a cutting and printing apparatus; and winding onto roll. The present invention has high integral structure strength, environment friendship, high acid and alkali corrosion resistance, excellent long term work state and other advantages.

Description

Technical field [0001] The invention relates to a manufacturing process of a calendered hot-melt integral soft foundation reinforced plastic drainage belt mainly used for the soft soil foundation reinforcement treatment of rivers, rivers, lakes, sea coasts, estuaries, tidal flats and inland areas. It belongs to the technical field of soft soil foundation reinforcement engineering materials. Background technique [0002] Existing domestic drainage belt products are all separated, or filter sleeve type plastic drainage belts, that is, plastic drainage belts composed of filter sleeves made of impregnated non-woven filter cloth over the plastic core board. It has three major shortcomings: separation The filter cloth used in the type drainage belt is an impregnated non-woven fabric, that is, the fibers are pressure-bonded with water-soluble glue to form a non-woven fabric. After long-term soaking in water, the fibers are easily separated due to peptization. The strength of the filter ...

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Problems solved by technology

[0002] The existing domestic drainage belt products are all separated, or filter-sleeved plastic drainage belts, that is, plastic drainage belts composed of filter sleeves made of impregnated non-woven fabric filter cloth on the plastic core board. It has three major disadvantages: separation The filter cloth used in the type drainage belt is impregnated non-woven fabric, that is, the fibers are bonded with water-soluble glue to form a non-woven fabric. After long-term immersion in water, the fibers are easily separated due to peptization, and the strength of the filter cloth is greatly reduced. When the drainage belt is set into the foundation, the filter sleeve is easily damaged by wind and rain, and even breaks away from the filter core plate, making the drainage belt invalid; the filter membrane and the core plate are separated, and the materials work separately, which cannot bear the external force well; the overall rigidity The strength and strength are relatively small. After bearing a large pressure in a deep foundation and when the foundation is consolidated and subsided when the drainage board is bent, the tooth ribs of the drainage channel will fall due to the pressure, reducing the water flow area of ​​the drainage board. Reduce the flow of water in the drainage belt

The production process of the separated drainage belt is simple, the production process has low technical content, it is easy to imitate, and the quality is unstable. Groundwater and soil pollution problems are inevitable, and the life of the drainage belt is not long

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