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Method for producing seedling breeding container from fibrous solid wastes

A seedling container and solid waste technology, applied in the direction of fiber raw materials, fiber raw material treatment, application, etc., can solve the problems of poor molding effect of seedling container, poor molding effect of seedling pot, poor material treatment effect, etc., to achieve sustainable recycling , Reduce material consumption, low cost effect

Inactive Publication Date: 2015-04-08
GUANGXI UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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

Method used

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  • Method for producing seedling breeding container from fibrous solid wastes
  • Method for producing seedling breeding container from fibrous solid wastes

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] A method for preparing a seedling raising container by utilizing fibrous solid waste, the following steps are performed in sequence:

[0047] (1) Grinding raw materials:

[0048] Select 10kg cassava wine tank to dry in the sun to make the water content 13%, crush the cassava wine tank to 60 mesh, and then mix it with 0.5kg bagasse bleached pulp to obtain a mixed material.

[0049] (2) Mechanical activation pretreatment:

[0050] Add the above-mentioned mixed material and grinding medium bulk volume into the stirring ball mill according to the ratio of 100g:200mL, adjust the rotating speed to 200rpm and pass in room temperature water to cool down, after reaching the activation time of 15min, stop stirring, take out the raw material and grinding balls, and mix them Separation to obtain modified fibers.

[0051] (3) Mixing slurry:

[0052] Transport the above-mentioned modified fiber to the pulp mixing tank, add the alkyl ketene polymer waterproofing additive with a mas...

Embodiment 2

[0058] A method for preparing a seedling raising container by utilizing fibrous solid waste, the following steps are performed in sequence:

[0059] (1) Grinding raw materials:

[0060] Select 10kg of bagasse to dry in the sun to make the water content 10%, crush the cassava wine tank to 80 mesh, and then mix it with 1.5kg of wood fiber bleached pulp to obtain a mixed material.

[0061] (2) Mechanical activation pretreatment:

[0062] Add the above-mentioned mixed material and grinding medium bulk volume into the stirring ball mill according to the ratio of 100g: 250mL, adjust the rotating speed to 250rpm and pass in room temperature water to cool down. After reaching the activation time of 12min, stop stirring, take out the raw material and grinding balls, and mix them Separation to obtain modified fibers.

[0063] (3) Mixing slurry:

[0064] The above-mentioned modified fiber is transported to the pulp mixing tank, and the acrylic polymer waterproofing agent with a mass r...

Embodiment 3

[0070] A method for preparing a seedling raising container by utilizing fibrous solid waste, the following steps are performed in sequence:

[0071] (1) Grinding raw materials:

[0072] Choose 10kg cassava wine tank and sisal residue mixture to dry in the sun to make the water content 12%, crush the cassava wine tank to 60 mesh, then mix with 1.0kg wood fiber bleached pulp and bagasse bleached pulp mixture to obtain a mixed material.

[0073] (2) Mechanical activation pretreatment:

[0074] Add the above-mentioned mixed material and grinding medium bulk volume into the stirring ball mill according to the ratio of 100g:280mL, adjust the rotating speed to 300rpm and pass in room temperature water to cool down, after reaching the activation time of 12min, stop stirring, take out the raw materials and grinding balls, and mix them Separation to obtain modified fibers.

[0075] (3) Mixing slurry:

[0076] The above-mentioned modified fiber is transported to the pulp mixing tank, ...

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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...

Claims

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Application Information

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IPC IPC(8): D21J5/00D21B1/12A01G9/10
Inventor 黄祖强潘瑞坚玉琼广胡华宇冯琳张燕娟梁露锋冯振飞黄爱民杨梅覃宇奔覃杏珍蒙运赞
Owner GUANGXI UNIV
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