In order to maximize the efficiency of gas-solid preheating, achieving the aim of high-quality, high-yield, low consumption in the whole calcining system, the preheater must have three functions of uniform disperse of gas and solid, rapid heat exchanger and high efficient separation.
The heat exchanging function is normally completed in the connecting duct, and the efficient separation is completed in the cyclone barrel.
Caesar bins make use of the kinetic energy produced by the falling down of materials to impact and scatter the material stream.
Increase the floor area to form the trapezoidal phase to connect with the pipeline to accommodate the requirements of the separating and scattering shape of the materials.
The base has a certain oblique angle to reduce the frictional resistance of the materials and the base plate and to facilitate the dispersion of the material flowing into the pipe.
There are generally Yamagata ribs in the direction of flowing materials on the surface of the floor to enhance the backplane stiffness to prevent heat distortion and the re-converging group dispersed materials during the operation of cement rotary kiln.
Lock air valve's main role is to keep the material flowing uniformly and smoothly and to seal, and its action must be quick and flexible.
The main role of the cyclone is gas-solid separation.
The improvement of the separation efficiency of the cyclone is an important condition to reduce the raw material powder, the outer loop, decrease the heat loss and enhance the important conditions of the gas-solid heat exchange.
The main factors affecting the separation efficiency of the cyclone include the smaller the diameter of a cyclone, the higher the separation efficiency; the form and dimensions of the air inlet of the cyclone.
Airflow should go into the cyclone tangentially to reduce the interference of eddy; inlet size should make sure the speed of importing wind is between 16 ~ 22m / s, preferably between 18 ~ 20m / s.
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