Method for manufacturing novel composite material through non-biomass substances in household refuse
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A technology of domestic waste and composite materials, applied in the field of new composite materials
Inactive Publication Date: 2016-01-27
中国科学院生态环境研究中心鄂尔多斯固体废弃物资源化工程技术研究所
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[0006] What the present invention needs to solve is to recycle non-biomass in all domestic wastes including garbage plastics, which contains more inorganic substances and a small amount of biomass, but there is no need to add additional plants to it during the production process. fiber (such as wood powder) or inorganic filler (such as stone powder), and does not take wood-plastic or wood-plastic materials, or stone-plastic materials as the standard, and use a combined process to produce a new type of composite material
Method used
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Embodiment 1
[0014] Please refer to the attached figure 1 .
[0015] In a domestic waste comprehensive treatment plant in a certain place in Northwest my country, after sorting out recyclables, hazardous waste, bulky waste, and biomass in domestic waste and performing corresponding treatment, the remainder—the non- The composition of biomass is shown in the table below:
[0016]
[0017] Non-biological matter (items 1 to 5 in the table) in domestic waste accounts for about 25% of the total domestic waste, of which mixed plastics account for the largest proportion, accounting for 11%.
[0018] Sorting out mixed plastics (mainly including PE, PP, PS, PVC, ABS) without washing, directly heating and melting, the temperature is not higher than 200 ℃, forming a lump, after cooling, it is broken into particles smaller than 10mm Standby; at the same time, shred paper and fabric into flakes smaller than 20mm, crush wood into powder smaller than 2mm, and crush bricks and ceramics into particles ...
Embodiment 2
[0020] The domestic garbage used and the processing of mixed plastics, paper, fabrics, wood, brick and tile ceramics are the same as in Example 1.
[0021] Mix plastic particles and fillers at a ratio of 1:0.8 to 1.2, add additives (weight ratio ≤3%) to increase the compatibility between mixed plastics and the coupling between plastics, plant fibers and inorganic substances, and carry out mixing, Pelletization: Produce mixed plastic material profiles through twin-screw extrusion process to make building materials with high requirements on strength, shape and appearance, such as agricultural greenhouse skeletons, park seats, guardrails, and flower boxes. This type of mixed plastic material is suitable for absorbing all the fiber components (such as paper, fabric, wood) in the domestic garbage in this embodiment.
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Abstract
After recyclable materials in household refuse are recycled, harmful refuse and large refuse in the household refuse are independently treated and biomass substances in the household refuse are biologically treated, a novel composite material, namely the mixed plastic material is produced with mixed plastic in non-biomass substances in the residual household refuse as matrix resin and other non-biomass substances as padding. Firstly, the mixed plastic in the non-biomass substances in the household refuse is directly hot-melted to form blocky materials, and after being cooled, the blocky materials are crushed into particles smaller than 10 mm; the other non-biomass substances in the non-biomass substances in the household refuse are torn up and crushed into sheets smaller than 20 mm or particles smaller than 2 mm; secondly, the mixed plastic and the other non-biomass substances which are treated are blended according to a specific proportion, and whether pelleting is carried out or not and whether assistants with compatibility and / or a coupling property are added or not are determined according to the subsequent production requirement for the mixed plastic material; and finally, molded mixed plastic material products are produced through hot pressing or extrusion or the rolling process, and therefore the maximum recycling of household refuse treatment is achieved.
Description
technical field [0001] The invention relates to a domestic waste treatment process, in particular to a method for processing non-biological matter in domestic waste and making a new type of composite material. Background technique [0002] With the continuous increase of domestic waste production and the continuous enhancement of people's awareness of ecological environmental protection, the demand for new domestic waste treatment processes and technologies is increasing day by day. The landfill and incineration technology of domestic waste is facing many problems such as land restriction, secondary pollution and high cost. The biological treatment technology of domestic waste is attracting more and more attention. An effective biological treatment technology is to convert the biomass in domestic waste into clean energy—biogas through a combined anaerobic fermentation process, and utilize its residue as a resource; but for the non-biomass in domestic waste The treatment of ...
Claims
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