Because of the different heat transferring equipments, there are many different kinds of kilns.
The rotary kiln is the center equipment in building materials, metallurgy and chemical industry.
It works in the circumstances with high temperature and overload for long.
The cement rotary kiln is the core equipment in cement production, and the normal operation of rotary kiln has the important meaning in cement production.
Ensuring good mechanical properties of the rotary kiln, can reduce mechanical wear, save coal and electricity, improve production efficiency.
Therefore, it is necessary to test and analyze mechanical equipment condition for the rotary kiln.
In the operation process of the kiln, it is very important to ensure the axis straightness of the kiln, ensure that each roller is in the correct position and uniform stress.
The kiln is working for a long time, and the firebricks are worn out by all kinds of cement materials, so the firebricks may become thinner, or the kiln’s centerline is not straight so the kiln shell could suffer from the force, leading the firebricks inside the shell to break down.
If the firebricks break down, it could induce "red kiln" accident.
If the roller is in abnormal operation state for a long time, its surface will appear to crack, and bearing will wire drawing because of overheat and break down; kiln will vibrate; Current will increases; Shell will craze and so on.
Roller supports the clinker rotary kiln including tyre, shell, materials, refractory bricks and heat exchanger and so on.
It play a crucial role in the normal operation of the cement kiln that roller is in place.
The wet-type production needs to make the raw materials into 32%-40% slurry.
The liquid state can make sure the great mixture of different materials, which can produce qualified clinker, and this is the main advantage of wet-type production.
Compared with wet-type rotary kiln, the merits and demerits of dry type are just contrary to that of the wet.
Raw materials should be made into raw dry powder, whose moisture is lower than 1%, so the heat of evaporating moisture is saved.
The mixture state is not so good as the wet type because the bad mobility.
- https://www.affordablecebu.com/