Device for preparing environment-friendly type bast fiber film

Abstract

The invention discloses an environment-friendly hemp film preparation device. The whole set of equipment includes two feeding machines, mixing machine, rough opener, fine opener, vibrating air pressure feeding box, carding machine, mechanical cross-lapper, air-laid machine, impregnation machine, drying cylinder type pre- Drying machine, pneumatic double-roll calender, surface spray coating machine, drying drum drying and setting machine, drafting trimming and coiling machine and other operating unit machines. Each unit machine adopts frequency conversion speed regulation and synchronizer to implement electrical control, and each unit machine can run independently at high speed, or the whole set of equipment can be linked to run. The present invention has the advantages that hemp fibers are transported by air flow pipeline between the rough opener, fine opener and carding machine, and the supply of raw materials is continuous; the second combination of mechanical laying and air-laid netting forms a net, and the net surface density of the hemp film is small , Uniform strength and stable quality; spray uniform coating on both sides of hemp mulch film, can produce hemp mulch film with different functions and uses; realize continuous and stable fully automatic production of hemp mulch film.

Description

technical field [0001] The invention relates to a production equipment for film materials, in particular to a complete set of production and preparation devices for environment-friendly hemp mulch films. Background technique [0002] Because plastic mulch is difficult to degrade, its long-term use has caused serious "white pollution" to my country's ecological environment. Therefore, the development of degradable and environmentally friendly plant fiber agricultural mulch is the main way to solve the environmental pollution caused by the long-term use of plastic mulch. The inventor has developed a kind of environmentally friendly hemp mulch film with plant fiber as the main raw material, and has applied for the invention patent of "a manufacturing process of an environmentally friendly hemp mulch film and the hemp mulch film prepared by it", and has been authorized (Patent No. ZL200410022948.3). The manufacturing process of the hemp mulch film of the invention patent is: th...

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Problems solved by technology

But, the hemp edema film grammage that this inventive method prepares is only 28~50g / m 2 , the thickness of the film is only 0.22 ~ 0.31mm, and it is impossible to produce this kind of hemp mulch film by using the existing domestic non-woven equipment and technology for the production of non-woven fabrics, and it is even more difficult to achieve stable production, especially at present. Better equipment for post-processing, it is difficult to conveniently and flexibly spray various reagents on the surface of the hemp mulch film for waterproofing, insect resistance, and weed control, and to improve the mechanical properties of the hemp mulch film, to prepare waterproof, insect-proof, and weed control mulch films, and The technical goal of environmentally friendly hemp film products applied in food, medicine, packaging and decoration industries has greatly hindered the industrialization and promotion of this invention patent

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