The acidometer was mainly composed of plough blade motor, cleaning plough blade, temperature detecting electrode, stibium electrode, reference electrode and hood.

Milling system : cracker, muller, milling machine, conveyor, hoist , material house, fluidized bed furnace, helix mixing blade, ripe power house, static dust catcher and shaking motor.

Finally, the weak part of the motor -the blade has been carried on crooked intensity and check exposed to the intensity.