Biological drying method for life garbage

Abstract

A biologic method to drying life garbage, it is about a kind of technology to decrease the water of life garbage and biologic stable disposal. Firstly, after sieving out the big block from the life garbage, to stack it into groove-shape compost reactor, then to cover tying straw pad and compound heat insulating coiled material, to bonds the opening rubber tail gas gathering tube with the cooling tube under the coiled material. The cooling tube is connected with gas-liquid separator, centrifugal blast blower B, gas separation unit and centrifugal blast blower A sequentially, and the centrifugal A is connected with the bottom of the reactor. Secondly, to vent the air fitfully and circularly with firm discharge, to turn one time on the second day and the fourth day respectively, to complete drying in six days, offgas enters gas separation unit after liquor condensate is eliminated by the cooling tube and gas-liquid separator, after discharging part of offgas into off-odor unit, to supply equivalent clean air, then to put the offgas into the centrifugal A for garbage venting. The quantity of offgas off odor and running cost of this invention is low, the water-content coefficient of the garbage is smaller than 40% after disposal, and it can be used for drying the life garbage with water-content coefficient 60%.

Description

technical field [0001] The biological drying method of domestic garbage relates to a treatment process for water reduction and biological stabilization of domestic garbage, and belongs to the technical field of solid waste treatment and resource utilization. Background technique [0002] The basic composition characteristic of domestic waste in my country is high moisture content. According to relevant data analysis, the average moisture content of domestic garbage in cities across the country is greater than 50%, while that in southern cities can reach more than 60%. High moisture content has obvious effects on the properties of each component and the whole of garbage. The measured results show that when the overall moisture content of domestic waste is 62%, the moisture content of plastic and paper components are 47% and 56%, respectively. Such a moisture content level can make the components of the garbage seriously adhere to each other, and lose the separability as a w...

AI Technical Summary

Problems solved by technology

However, in the garbage they use, the degradable materials that provide dry heat have an organic content of 80% (dry basis), and a moisture content of only 41%, which is significantly higher or lower than the corresponding composition of domestic garbage in my country (respectively 40%) %~50% and 50%~60%), therefore, it is difficult to be used for domestic waste treatment in our country

Images