Cement decomposition kiln coupled with fire grate and process for co-processing of household garbage

Abstract

The invention discloses a cement decomposition kiln coupled with a fire grate and a process for co-processing of household garbage. The cement decomposition kiln coupled with the fire grate and the process for co-processing of the household garbage are used for solving the problems that since the existing household garbage is complex in component, high in moisture content, high in sulfur and chlorine content and high in low-temperature volatile component content, in the process of directly incinerating the household garbage in the cement kiln, the heat utilization efficiency is low, the deflagration phenomenon is easy to generate, chlorine enrichment in the kiln causes crusts and blockage, and dioxin pollution is caused. A plurality of fire grate units evenly arranged around the inner wall of the cement decomposition kiln are arranged on the upper portion of the cement decomposition kiln coupled with the fire grate, the fire grate units are in a step shape, each layer of each fire grate unit is provided with a fan-shaped fire grate segment, the fan-shaped fire grate segments can rotate relatively, and the middle of the cement decomposition kiln is provided with an inner sleeve, an outer sleeve and a movable sleeve which are connected with the fan-shaped fire grate segments. The movable sleeve extends out of the upper part of the cement decomposing kiln and is driven by a driving device, and the inner sleeve and the outer sleeve are fixed. The cement decomposition kiln coupled with the fire grate is small in occupied space, simple in mechanical structure, free of fuel supplement, large in garbage treatment capacity, thorough in decomposition and free of influence of garbage properties.

Description

technical field [0001] The invention relates to the technical field of domestic waste treatment, in particular to a cement decomposition kiln coupled with a fire grate and a process for co-processing domestic waste. Background technique [0002] my country's annual municipal solid waste production is as high as more than 200 million tons, and the rationalization of waste disposal is particularly important. There are three main ways of waste disposal, including incineration, landfill, accumulation, and incineration is the most important way of waste disposal at present. Grate furnace incineration of waste occupies 60% of the waste disposal market, but there are problems such as high investment cost, large heat loss, and high requirements for the calorific value of waste. Cement decomposition kiln co-processing of waste is also an important way of waste incineration. With the help of the kiln temperature up to 1000 ℃ inside the cement kiln, the harmful substances in the waste...

AI Technical Summary

Problems solved by technology

[0005] The object of the present invention is to provide a cement decomposition kiln coupled with a grate and a process for co-processing domestic waste to solve the problems of complex components, high moisture content, high sulfur and chlorine content and low temperature in the existing domestic waste proposed in the background technology The high content of volatile components leads to low heat utilization efficiency in the process of direct incineration of domestic waste in cement kilns, prone to deflagration, chlorine-enriched crust blockage in the kiln, and dioxin pollution.

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