A kind of energy processing method of household garbage

Abstract

The invention discloses an energy-based treatment method for household garbage. Alkaline substances are added to household garbage, inorganic garbage and waste plastics are sorted out to obtain organic garbage excluding waste plastics, and then solid-liquid separation is performed on the organic garbage to separate out The solid is swill, the swill is crushed, and the crushed swill is extruded to obtain solid slag and extrusion liquid. The moisture content in the obtained solid slag is 25%-35%, and the solid slag is transported into the drying tank for drying. After the drying is completed, it is twisted and sent to the pulverizer for crushing, then anthracite is added, mixed evenly and formed, and then vacuum carbonization is carried out. During the process of vacuum carbonization, the residual oil is first separated, and tar is obtained as the carbonization proceeds. After completion, solid fuel is obtained, and during the carbonization process, oil and tar are collected respectively. The invention recycles and utilizes the organic garbage in domestic garbage, turns waste into treasure, and obtains solid fuel, which has a moisture content of less than 15%, a sulfur content of less than 0.07%, a calorific value of more than 16.9 MJ, and good combustion performance.

Description

technical field [0001] The field of waste treatment of the present invention is specifically an energy treatment method of domestic waste. Background technique [0002] Household waste can be divided into two categories: inorganic waste and organic waste. Organic waste, also known as wet waste, refers to waste containing organic components in domestic waste, mainly paper, fiber, bamboo, and kitchen waste. More than 50% of municipal solid waste is organic waste, and it is increasing year by year, among which waste paper and waste plastics have the fastest growth. [0003] At present, there are roughly the following methods for organic waste treatment at home and abroad: one is the landfill method, which fills up usable materials, has a very low level of resource utilization, limited processing capacity, and unsatisfactory benefits; Feed, this method uses biotechnology to make food waste from organic waste into feed. The production process is complicated, and a large amount o...

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Problems solved by technology

[0003] At present, there are roughly the following methods for organic waste treatment at home and abroad: one is the landfill method, which fills up usable materials, has a very low level of resource utilization, limited processing capacity, and unsatisfactory benefits; Feed, this method uses biotechnology to make food waste from organic waste into feed. The production process is complicated, and a large amount of biomass auxiliary materials need to be added. There are large fluctuations; one is aerobic composting, which pre-treats food waste in organic waste and makes organic fertilizer through aerobic fermentation, and the quality of organic fertilizer is unstable; the other is anaerobic digestion. Under anaerobic conditions, the food waste in the organic waste is digested and treated through microbial metabolism, and biogas and organic fertilizer are produced at the same time, but it will produce solid residues that cannot be decomposed by microorganisms, such as incomplete treatment and other shortcomings.

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