A rotary incinerator and rotary incineration method

Abstract

The invention relates to the technical field of sludge drying and incineration devices and methods, in particular to a rotary incinerator and a rotary incineration method. The rotary incinerator comprises an inner wall and an outer wall. A loop-shaped working space is defined by the inner wall and the outer wall. Sludge inlet chains closed in a loop shape are arranged in the working space. A gas inlet and a gas outlet are correspondingly formed in the two sides of the top end of the working space. The upper part of the working space is provided with a discharging opening at the side the same with the gas inlet. The upper part of the working space is provided with a feeding opening at the side the same with the gas outlet. The bottom of the working space is a main incineration section. Compared with the prior art, the rotary incinerator and the rotary incineration method have the beneficial effects that no or less fly ash and dust are generated; inlet sludge is dried by high-temperatureexhaust gas after incineration, the sludge and chain buckets after the incineration are cooled by inlet air, meanwhile the inlet air is heated, preheating is fully used, and a high degree of energy saving is realized; and the application range is wide, and the rotary incinerator and the rotary incineration method not only can be used for sludge incineration, but also can be used for incinerationof other granulated combustible materials.

Description

technical field

[0001] The invention relates to the technical field of sludge drying and incineration devices and methods, in particular to a rotary incinerator and a rotary incineration method. Background technique

[0002] With the continuous improvement of people's quality of life, the requirements for urban sewage treatment have also increased accordingly, and the load of urban treatment plants has increased day by day. Sludge is a product of sewage treatment. The sludge produced by urban sewage treatment contains a large amount of organic matter, which can be used as agricultural fertilizer, but it also contains a large number of harmful components such as bacteria, parasite eggs, and heavy metal ions brought from production sewage. , need to do sludge reduction, stabilization, and harmless treatment. The main methods of treatment are drying treatments such as concentration and dehydration, and stabilization treatments such as digestion. This is also an important issue ...

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