Hazardous waste incineration treatment method and system

Abstract

The invention provides a hazardous waste incineration treatment method and system. The hazardous waste incineration treatment system comprises a feeding device, a reverse flow type rotary kiln and a secondary combustion chamber, wherein the feeding device is configured to feed hazardous waste into a kiln head of the reverse flow type rotary kiln; the reverse flow type rotary kiln is configured topyrolyze the hazardous waste and generate pyrolysis gas, a primary air inlet is formed in a kiln tail of the reverse flow type rotary kiln, the pyrolysis gas is discharged from the kiln head of the reverse flow type rotary kiln, and the secondary combustion chamber is configured to further burning out unburnt substances escaping from the kiln head of the reverse flow type rotary kiln and ensure that pollution substances generated in the combustion process can be completely decomposed. According to the hazardous waste incineration treatment system, the reverse flow type rotary kiln is adopted,so that the pyrolysis gas is generated by incinerating the hazardous waste, an auxiliary energy source is not needed, or only a small amount of auxiliary energy is needed to ensure the temperature ofan outlet of the secondary combustion chamber to be 1100 DEG C, and therefore the energy is saved, and the economic benefits are improved.

Description

technical field [0001] The invention relates to the field of solid waste incineration, in particular to a hazardous waste incineration treatment method and system thereof. Background technique [0002] With the rapid development of my country's economy, the generation of hazardous waste has increased dramatically. In view of its potential environmental risks and threats to human health, hazardous waste has become one of the major environmental problems our country is facing. Incineration can effectively destroy toxic and hazardous organic waste in waste, reduce the volume and quality of waste, and is conducive to the final safe disposal of waste. It is the fastest and most effective technology to achieve the reduction and harmlessness of hazardous waste. [0003] The rotary kiln is a hollow steel cylinder that is slightly inclined and coated with refractory materials. It was first used to burn cement, lime and other substances, and later it was gradually used for the dispos...

AI Technical Summary

Problems solved by technology

[0004] However, in the existing incineration process for treating hazardous waste, the downstream rotary kiln is generally used as the incinerator type, and the material is used as fuel for incineration treatment. The secondary combustion chamber needs to consume a large amount of auxiliary fuel in order to meet the corresponding national temperature regulations. cause waste of resources

Images