Technical field:
The utility model relates to a new rotary kiln burner, which is suitable for chemical industry, metallurgy, petroleum, electric power, building materials and other technical fields, especially for cement production.
Background technology:
Burner is indispensable thermal equipment in high temperature industry.Cement is an industrial product with high energy consumption. As the burner of rotary kiln, its structure plays a decisive role in saving energy and reducing consumption, improving production quality, prolonging the service life of refractory brick and kiln body, and reducing NOx emission of harmful gas. Burner cover is an important part of burner. The burner is installed on the burner, which helps to organize more effective burner flow, complete burner function, and prevent high-temperature backflow gas from directly burning the burner head to the burner. But the flame burner cover, there is a common defect, the form of the direct fire cover, symmetrical, it is hollow, relatively high when the sulfur content in fuel, through natural gas flame or sulfur cement clinker production some ingredients of the three pilot flame so2 under cover of concentrated acid mixture flow hood, caused serious corrosion, flame covered in corrosive gas and fire cover is easy to damage.
Summary of the invention
The purpose of the utility model is to overcome the defects of the existing rotary kiln burner hood and design a new rotary kiln burner hood. The flame covers up and down asymmetrically, the upper part is big, the lower part is small, and the outer rib may strengthen. In this way, the acid formed by sulfur vapor will not flow into the flame shield, but directly into the cement clinker, which will not affect the original function of the flame shield, greatly extending the service life of the flame shield.
