Method for manufacturing reusing substances from household kitchen wastes

Abstract

The invention discloses a method for manufacturing reusing substances from household kitchen wastes. The method comprises the steps of obtaining manufacturing equipment which comprises a crusher, an extrusion molding machine, a discharging guide mechanism, a drying mechanism, a waste heat drying cavity and a waste heat flue gas circulation pipeline, and opening the waste heat flue gas circulationpipeline to introduce hot flue gas into the extrusion molding machine, wherein the waste heat flue gas temperature is 100-200 DEG C, and the preheating time is 5-10 minutes; preheating the extrusion molding machine for 3-5 minutes; turning on a heat radiation source of the drying mechanism, setting the heating temperature of 200-280 DEG C, and preheating a material conveying device of the drying mechanism for 1-3 minutes; mixing the household kitchen wastes and straw powder according to a ratio of 3:1-5:1, adding 3%-6% modified starch, and feeding the mixture into the crusher for crushing; feeding the crushed materials into the extrusion molding machine, keeping extrusion heat conduction for 5 seconds, and performing extrusion molding; placing the extruded materials into the drying mechanism, and controlling the drying time of the materials to be 20 seconds; and conveying the dried materials to the waste heat drying cavity, drying the materials by using the waste heat, and then storingthe materials.

Description

technical field [0001] The invention relates to the technical field of combustible domestic waste treatment, in particular to a preparation method for making reusable materials from domestic kitchen waste. Background technique [0002] At present, the per capita domestic garbage output in cities across the country is high, and the problem of garbage treatment and disposal has become one of the most urgent problems faced by my country's urban environmental sanitation. Since domestic garbage itself cannot be extruded by machines, it is usually used in the prior art. The organic waste in domestic waste is mixed with biological straw in a certain proportion for re-preparation to form reusable materials such as pellet feed, fuel or bio-fertilizer, which can not only make full use of a large amount of waste biomass in rural areas, but also solve some waste disposal problems. Improve people's living environment and reduce air pollution. The crude fiber content in biomass is high, th...

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Problems solved by technology

The crude fiber content in biomass is high, the density is lower than that of viscose fiber, and the bulk density and breaking strength are small. Since the biomass crude fiber contains a large number of voids, it is easy to be formed under pressure after being mixed with organic waste, which reduces the pressure consumption during the mixing process. The reused material after forming has high strength, uniform density, easy storage and convenient use. The existing organic waste preparation methods adopt screening, crushing, extrusion molding and natural air drying methods. The crusher used in the crushing and extrusion molding process And the forming machine only crushes and extrudes the material mixed with organic waste and straw. Due to the high moisture content in the waste, the formed material also contains more water. It takes a long time to dry by natural air drying, and the efficiency is low. Poor air-dry quality, affecting product quality and use of reused substances such as pellet feed, fuel or biofertilizer

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