Technical Field:
Used in chemical industry, metallurgy, petroleum, electric power, building materials and other fields, especially suitable for cement manufacturing.
Background Technology:
Burner is an indispensable thermal equipment in high temperature industry.Cement is an industrial product with high energy consumption.As the burner of rotary kiln, its structure is of great significance to reduce energy consumption, improve production quality, extend the service life of refractory brick and kiln body, and reduce the emission of harmful gas NOx.The flame cover of the burner is an important part of the burner, which is installed on the upper part of the burner.It helps the burner to organize the flow field, effectively completes the function of the burner, prevents the high temperature backflow gas from directly scour the burner head, and plays the role of protecting the burner.However, there are common defects in the guide cover of rotary kiln burner at present.The existing flame housing is straight, symmetrical and hollow.When the sulfur content of the fuel is high, the sulfur dioxide or three sulfur dioxide gases and some components of the burned cement clinker will condense into acid on the flame cap.The mixture flows to the lower part of the flame, making the lower part of the flame severely corroded. Therefore, when corrosive gases are present, the lower part of the flame is easily damaged.
Summary Of The Invention
The purpose of this technology is to overcome the defects of the current rotary kiln burner flame guide and to design a new rotary kiln burner flame guide.We put the flame shield on top of the asymmetrical shape, the top is large, the bottom is small, and the outside can also be reinforced.In this way, sulfuric acid formed by sulfur vapor condensation will not flow to the flame cover, but directly to the cement clinker, which will not affect the original function of the flame cover and can greatly extend the service life of the flame.
The Structure Of Flame Cover Of Rotary Kiln Burner Is Introduced Below.
The flame guides of ordinary burners have both upper and lower symmetry and uniform thickness.The new burner guide housing consists of a burner body and two stiffeners added to the burner housing.The burner flame cover is a hollow cylinder with hollow section.The upper part is asymmetrical with the lower part being larger and smaller.The included Angle between the cylinder bottom and the oblique section of the cylinder body is 5 ~ 70 degrees, and the most suitable Angle is 30 ~ 45 degrees.The reinforcing rib outside the burner cover makes the flame shielding of the burner stronger and not easy to be damaged.
The use of the burner guide cover can help to organize the flow field of the burner, effectively fulfill the function of the burner, and greatly improve the service life of the burner cover itself.
