Burning method for disposing wastes with various varieties and various phase states

Abstract

The invention discloses a burning method for disposing wastes with various varieties and various phase states and belongs to the field of waste processing methods. The burning method comprises the following steps: passing wastes to be burnt through a burning device from top to bottom in the burning device, meanwhile, igniting the wastes to be burnt by high-temperature wind which passes through the burning device from top to bottom, and carrying a burnt product by high-temperature wind to leave the burning device; and burning the wastes which enters into the burning device and stay at the different height positions of the burning device, and after respectively controllably burning for an appointed time at the appointed height position, leaving the burning device. The burning method disclosed by the invention is a burning method which can be used for simultaneously disposing at least three wastes (industrial waste slag, waste liquor, municipal solid waste and sewage plant sludge) with various varieties and various phase states, has the advantages of reasonable flow structure and strong adaptability and can finish integrated disposal.

Description

technical field [0001] The invention belongs to the field of waste treatment methods. Background technique [0002] With the development of the economy and the improvement of people's living standards, the scale of various industrial wastes and domestic wastes is increasing day by day. The resulting pollution has become one of the global public hazards. How to deal with these wastes has become an important topic and issue at present. problem. Some existing waste treatment processes use cement kilns to directly incinerate various wastes to treat wastes: At present, most of the process devices for waste disposal in cement kilns are used to dispose of a single type of waste, and a few can dispose of multiple types of waste. The process equipment of the waste is also disposed separately, mainly adopting the method of dispersing and directly adding waste in the cement calcining system. This method has the problems of small disposal volume, decentralized setting, complex system, ...

AI Technical Summary

Problems solved by technology

Some existing waste treatment processes use cement kilns to directly incinerate various wastes to treat wastes: At present, most of the process devices for waste disposal in cement kilns are used to dispose of a single type of waste, and a few can dispose of multiple types of waste. The process equipment of the waste is also disposed separately, mainly adopting the method of dispersing and directly adding waste in the cement calcining system. This method has the problems of small disposal volume, decentralized setting, complex system, and difficult adjustment of incineration temperature, and the problem of direct incineration The method will affect the incineration of the original incineration equipment for cement production, and further adversely affect the cement production

In addition, if multi-phase and multi-species wastes are disposed of in a centralized manner, due to the different chemical components, physical properties, and incineration and decomposition conditions of the wastes, and a certain scale of disposal is also required, during the process of waste disposal and It cannot affect the normal production of cement calcination, and the conventional cement production system is difficult to adapt to this condition, because for a single disposal of a certain waste, the material performance is relatively simple, and the process system and equipment are also more targeted. When there are many and complex phases, the technical difficulty will increase significantly

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