Comprehensive city garbage recovering and processing method

Abstract

The comprehensive city garbage recovering and treating process includes feeding garbage with pressurizing hot blast blower into garbage sorter; sorting garbage magnetically and pneumatically into waste metal, soil, hard garbage and light garbage; cracking light garbage in gasifying pyrolysis oven while adding catalytic cracking agent and through reaction at 110-280 deg.c, with the reacted product being collected; and incinerating the mixture of residual pyrolysate, hard garbage, lime stone and coal. The present invention performs harmless treatment of garbage completely and has low cost and high utilization of garbage.

Description

technical field [0001] The invention relates to the technical fields of environmental protection and garbage treatment, in particular to a method for comprehensive recycling and treatment of urban garbage. Background technique [0002] At present, domestic and international disposal of domestic waste, construction waste, feces and other urban waste usually adopt landfill, composting, reclamation and other methods. These methods not only occupy a large amount of land resources and equipment resources, but also cause waste of resources. It will cause secondary pollution to the human living environment. [0003] In recent years, people have begun to use incineration to deal with urban waste. However, due to the characteristics of my country's urban waste, such as miscellaneous components, high moisture, and low calorific value, its water content is generally above 50%, and its average calorific value is only 1047-4187KJ / Kg (800~1000kcal / Kg), especially the water content in the...

AI Technical Summary

Problems solved by technology

[0002] At present, domestic and international disposal of domestic waste, construction waste, feces and other urban waste usually adopt landfill, composting, reclamation and other methods. These methods not only occupy a large amount of land resources and equipment resources, but also cause waste of resources. It will cause secondary pollution to the living environment of human beings

[0003] In recent years, people have begun to use incineration to deal with urban waste. However, due to the characteristics of my country's urban waste, such as miscellaneous components, high moisture, and low calorific value, its water content is generally above 50%, and its average calorific value is only 1047-4187KJ / Kg (800~1000kcal / Kg), especially in the southern region, the water content in the garbage is higher, generally around 52.2%, which is not conducive to incineration at all.

If the dry distillation method is forcibly implemented, it will directly lead to an increase in the cost of incineration