Plastic micro-irrigation belt based on leakage of porous medium and manufacturing method and equipment of plastic micro-irrigation belt

Abstract

The invention relates to a plastic micro-irrigation belt based on the leakage of a porous medium. The plastic micro-irrigation belt comprises a micro-irrigation belt body, wherein a porous structure is formed on the micro-irrigation belt body by virtue of a pore-foaming agent, partial holes in the part from the inner surface to the outer surface of the micro-irrigation belt body are mutually communicated to form a water seepage channel with a porous medium leakage function, the aperture ratio of the water seepage channel is 0.01%-100%, and the proportion of the porous structure on the cross section of the micro-irrigation belt body is 0.01%-100%. According to the plastic micro-irrigation belt, water can be continuously conveyed to soil adjacent to the roots of plants in a small flow mannerby virtue of the characteristics of a porous medium, and the plastic micro-irrigation belt is combined with under-film irrigation, adequate water absorption is guaranteed, and the irrigation cost canbe effectively saved. The invention further relates to a manufacturing method of the plastic micro-irrigation belt and equipment for realizing the manufacturing method. According to the method, the one-time formation of the micro-irrigation belt with the porous medium leakage function can be realized; and a water dropper does not need to be manufactured, so that the production cost is relativelylow. The invention belongs to the field of agricultural irrigation.

Description

technical field [0001] The invention relates to the field of agricultural irrigation products, in particular to a plastic micro-irrigation tape based on porous medium leakage and its manufacturing method and equipment. Background technique [0002] Micro-irrigation technology can not only save water and fertilizer, but also increase production and income, reduce pests and diseases, and play an important supporting role in ensuring food security and increasing agricultural production and income, so it has become a research hotspot in recent years. [0003] At present, there are three types of drip irrigation belts on the market: side seam heat-sealing type, embedded type, and strip type. The manufacturing process of drip irrigation belts is relatively complicated, and more supporting equipment is required, which cannot be formed at one time. At the same time, the main part of the drip irrigation belt and Drippers need to be molded separately and then embedded, which requires ...

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Problems solved by technology

[0003] At present, there are three types of drip irrigation belts on the market: side seam heat-sealing type, embedded type, and strip type. The manufacturing process of drip irrigation belts is relatively complicated, and more supporting equipment is required, which cannot be formed at one time. At the same time, the main part of the drip irrigation belt and Drippers need to be molded separately and then embedded, which requires high-precision, high-quality drippers, high manufacturing costs, expensive and advanced soil environment sensors, and remote control technical support. Therefore, various links in the entire industrial chain such as molds, production The matching ability of the equipment, the use cost is high

On the other hand, the current three irrigation methods are mainly based on regular and quantitative irrigation, which cannot supply water with a continuous small flow rate, resulting in insufficient utilization of water resources, and the cost of materials used cannot be further reduced due to the solid structure of the irrigation belt.

In response to this situation, some irrigation devices have modified the body of the water delivery belt and the dripper, and used the formed open foam material, fiber material, non-woven fabric, etc. to combine with waterproof barrier layers, hoses, casings, etc. to form local leakage. Point irrigation devices also have problems such as only suitable for single-room small-batch manufacturing, cannot be molded at one time, and have low efficiency.

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