Study on Combustion Characteristic of Waste Plastic Particle and Coal Powder at the Blast Temperature of Blast Furnace

摘要

In order to study the combustion characteristic of the waste plastic particle and coal powder at blast temperature of the blast furnace, the content of CO and CO_2 of off gas during the combustion course of waste plastics particle and its mixture with coal powder at the blast temperature was measured by carbon monoxide and carbon dioxide infrared analysis instrument, and then corresponding combustion ratio was calculated. The results showed that when the blast temperature is higher, the combustion speed is quicker and the combustion ratio is higher; when the proportion of coal powder in the mixture is larger, the combustion ratio of the mixture is higher; and the combustion speed is slower.