Method for producing seedling breeding container from fibrous solid wastes

Abstract

The invention discloses a method for producing a seedling breeding container from fibrous solid wastes. The method sequentially includes the steps of (1), smashing raw materials, namely, drying the fibrous solid waste raw materials in the sun, smashing the raw materials and then mixing the smashed raw materials with reinforcements to obtain mixed materials; (2), subjecting the mixed materials to mechanical activating pretreatment to obtain modified fibers; (3), mixing pulp, namely, conveying the modified fibers into a pulp mixing pond, adding waterproof agents with stirring evenly and adding water to dilute to obtain pulp in a solid-to-liquid ratio of 1:(2-6); (4), performing suction filtering molding, namely, conveying the pulp into a mould cavity for suction filtering and dewatering pressing to obtain a wet blank product, wherein filtered water is delivered back to the pulp mixing pond for recycling; (5), performing hot-pressing shaping, namely, transferring the wet blank product into a hot-pressing mould, performing hot pressing under high pressure at a high temperature, and removing moisture generated during hot pressing to obtain the seedling breeding container. The method for producing the seedling breeding container from the fibrous solid wastes has the advantages of simple technology, zero pollution, low cost, high product molding ratio and the like.

Description

technical field [0001] The invention relates to a method for preparing a degradable container, in particular to a method for preparing a seedling raising container by using fibrous solid waste. Background technique [0002] With economic development and scientific and technological progress, from traditional seedling raising methods to container seedling raising technology, container seedling raising has the characteristics of short seedling time, neat and strong seedlings, no root damage, convenient transportation, high survival rate, and convenient management. At present, it is widely used in our country. Most of the seedling containers used are plastic (such as PVA, PE, etc.) products, but the plastic seedling container is airtight and watertight, and because it has certain toughness and strength, it will hinder the extension of the root system, which is not conducive to the growth and development of seedlings. Moreover, plastics are extremely difficult to degrade under n...

AI Technical Summary

Problems solved by technology

The disadvantages of this invention are: the cost of the raw materials used is high, the forming effect of the seedling container is poor and the forming failure is easy, and at the same time, the distribution of various materials is not uniform enough, resulting in poor mechanical properties of the product

The disadvantages of this invention are: the cost of the adhesive and curing agent used is high, and the fly ash is not easy to decompose, the molding effect of the seedling pot is poor and the molding is easy to fail, etc.

At present, the methods for pretreatment of plant fiber raw materials mainly include (1) mechanical crushing technology. Mechanical crushing refers to processing materials into fine particles. This method not only consumes high energy, but also has poor treatment effects on some materials; (2) ) Chemical method pretreatment technology generally uses ammonia water, dilute sulfuric acid, etc. to pretreat straw fibers, but this method makes the investment cost higher and also brings environmental pollution problems; (3) For the wet forming process, it is necessary to Moderate beating pretreatment, beating is the use of physical (mechanical) methods to treat plant fibers to enhance the bonding force between fibers, beating uses water as the medium, and the fibers in the water are treated by mechanical action, thereby improving the mechanical properties of the material. performance, but the beating consistency is lower and requires a lot of water, which leads to a lot of wastewater treatment problems

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