Method for efficiently suppressing dioxin formation in waste incineration process by using phosphorus-based inhibitor

Abstract

The invention relates to a solid waste incineration technology, and aims to provide a method for efficiently suppressing the generation of dioxins in a waste incineration process by utilizing a phosphorus-based inhibitor. In the method, when solid waste is disposed of by incineration in a waste incinerator, powdered phosphorus-based inhibitor is sprayed into the flue area with a temperature range of 500-850°C in the waste incinerator to suppress the smoke in the post-combustion area. Low-temperature resynthesis of dioxins in air. The phosphorus-based inhibitor developed in the present invention can replace the sulfur-containing inhibitor, and compared with the 50% inhibition efficiency of the traditional sulfur-based inhibitor, the inhibition efficiency of the present invention is increased by 0.3-0.84 times. and did not increase the SO in the flue gas 2 , NO X It has the advantages of convenient operation and simple process, and does not need to adjust and modify the existing incinerator and flue gas treatment system; the phosphorus-based inhibitor developed by the present invention has the advantages of The source of the components is wide, the price is low, the running cost is significant, and it has important application value.

Description

technical field [0001] The invention relates to a technology for controlling dioxin emission in the incineration process of solid waste, in particular to a method for efficiently suppressing the generation of dioxin in a waste incineration process by utilizing a phosphorus-based inhibitor. Background technique [0002] In recent years, the output of domestic waste in my country has increased sharply, and the volume of domestic waste removal and transportation has doubled. Domestic waste incineration has long been the main method of domestic waste disposal due to its advantages of reduction, harmlessness and resource utilization. However, dioxin-like pollutants are easily produced in the process of waste incineration, which seriously restricts the development of clean incineration technology of domestic waste. How to control the generation and emission of dioxin-like pollutants during the incineration process has become an urgent problem to be solved in the field of waste in...

AI Technical Summary

Problems solved by technology

However, the use of sulfur-containing retarders needs to be very cautious, improper use will cause SO in the flue gas 2 A significant increase in the concentration will also cause sulfur corrosion on the surface of the heat exchanger in the furnace, resulting in tube explosion, seriously affecting the operation of the incinerator, and causing certain negative effects