Layered waste combustion device and waste moving bed combustion simulation method thereof

Abstract

The invention discloses a layered waste combustion device and a waste moving bed combustion simulation method thereof. The device comprises an air source, an oxygen source, a flow controller set, a control system, an air chamber set, a fire grate, a hearth and a replaceable furnace arch pair arranged in the hearth. The furnace arch pair comprises a detachable front arch and a detachable rear arch,and a throat and the smoke flow direction of forward flow or reverse flow or mixed flow can be formed in the hearth. The virtual moving speed of fire grate waste is set as v, calculating is carried out to obtain an instant time-shifting air volume curve qi=f(yi+vt) of any ith air chamber at the moment t, the sum of the air supply volume qi<O2> and qi<air> of an oxygen flow controller and an air flow controller is adjusted to be qi, and the proportion of the qi<O2> to the qi<air> is adjusted according to the excess air coefficient and the required bed oxygen concentration, so that the total oxygen supply amount and the local oxygen concentration can be adjusted by adjusting the proportion. The layered waste combustion device and the method have the advantages of simplifying the research process and the like.

Description

technical field [0001] The invention relates to a waste layered combustion device and a method for simulating waste moving bed combustion, in particular to a fixed bed type waste layered combustion device capable of simulating waste moving bed combustion and its method, belonging to waste combustion technology field. Background technique [0002] Waste incineration has become the mainstream process of domestic waste treatment in China. As of the end of 2017, China has built more than 350 waste incineration facilities, with a scale of about 331,000 tons per day, a per capita incineration of about 67 / person per year, and an annual waste incineration of more than 9,300 10,000 tons, accounting for 34.3% of the harmless treatment of domestic waste. In addition, the output of industrial organic solid waste in China is increasing year by year. There are many types of organic solid waste, difficult disposal, and serious potential environmental pollution, which need to be resolved u...

AI Technical Summary

Problems solved by technology

[0004] After classification, the output of urban domestic waste (dry waste or other waste) is relatively fixed, and the average content of each physical component is relatively stable, while the output of a single category of industrial organic solid waste is small, but the enrichment characteristics of physical components are single, that is, mixed burning A class of industrial solid waste will cause the enrichment of one or more polluting elements in the mixed fuel, resulting in an increase in the trace pollutants produced during the incineration of separate waste, which will be transformed into the characteristic pollutants of co-incineration

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