Treating method for kitchen garbage

Abstract

The embodiment of the invention provides a treating method for kitchen garbage. The treating method for the kitchen garbage includes the steps that the kitchen garbage is subjected to star type classification so that large block materials larger than a preset size can be sorted out, and the other materials which are sorted out and liquid are conveyed into a material storage box to be temporarily stored; then the other materials and the liquid in the material storage box are conveyed into a gas conveying tank through a spiral conveying mechanism; after the other materials and the liquid are conveyed into a hydrothermal degradation tank by means of pressure of a gas storage tank of an air compressor to be subjected to high temperature hydrothermal degradation treatment, the other materials and the liquid are conveyed into a buffering tank under pressure; the materials in the buffering tank are subjected to coarse squeezing, and fine materials are conveyed into a first liquid storage tank; the fine materials in the first liquid storage tank are separated so that solid materials with the particle diameter larger than the native preset size can be separated out to be dewatered and then are output; then small materials with the particle diameter smaller than the native preset size are conveyed into a second liquid storage tank; and then the materials in the second liquid storage tank are separated through a three phase separating mechanism.

Description

technical field [0001] The invention relates to the technical field of garbage collection and treatment, in particular to a treatment method for kitchen garbage. Background technique: [0002] At present, with the continuous deepening of urban kitchen waste treatment, environmental pollution control has also become a key content. The traditional urban food waste treatment method is to adopt the technological measures of crushing and sorting, high-speed stirring pulping, slag removal, and sand settling. The separated solid materials and sand are sent to domestic waste landfills or incineration plants. From many years of practical experience, the pulping effect of this method is not ideal, and there are the following problems: [0003] First, the loss of organic matter is large; [0004] Second, the full amount of crushing will cause a lot of inorganic matter to be crushed to form a large amount of fine sand, which will bring great difficulties to the subsequent pump transpo...

AI Technical Summary

Problems solved by technology

From many years of practical experience, the pulping effect of this method is not ideal, and there are the following problems:

[0003] First, the loss of organic matter is large;

[0004] Second, the full amount of crushing will cause a lot of inorganic matter to be crushed to form a large amount of fine sand, which will bring great difficulties to the subsequent pump transportation and screw transportation, that is, the liners of various equipment are severely worn, and the maintenance cost is too high and maintenance is difficult.

[0005] The third is that a large amount of leachate will be produced during the sorting process. This kind of solid material containing leachate is not easy to transport and cause secondary pollution inside the workshop.

[0006] This traditional receiving and sorting method has long processing time, high labor intensity, poor working environment, and serious secondary pollution, which can no longer meet the requirements of rapid, efficient, and environmentally friendly garbage disposal

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