Limestone Dryer and Its Working Principle

Limestone drying machine is widely used in building materials, metallurgy, mineral processing, chemical industry, cement industry and so on to dry materials, such as slag, calcium carbide, limestone, quartz sand, clay. Limestone dryer also applies to a variety of combustion furnaces. This dryer has proper design, small covering area and stable performance. Besides, its output is high while energy consumption is low.

What is the working principle of limestone dryer?

1. Limestone is sent to the hopper and then goes into the limestone dryer through a feeding pipe.

2. The dryer cylinder is slightly inclined, compared with the horizontal line, so that limestone is added from the higher end of the cylinder, while the heating medium enters from the lower end, contacting the material adversely. However, the material and the heating medium may enter the cylinder from the same end.

3. The material, under the effect of gravity, moves to the lower end with the rotation of the cylinder, so the wet material is heated and dried by the heating medium, directly or indirectly , when it moves forward in the cylinder. After that , it is exported from the discharge opening.

4. There are some shoveling plates on the cylinder wall of the limestone dryer. The function of these plates is to enlarge the contacting area of the material and the air by shoveling and scattering the material, which further improves the drying rate and promotes the motion of the material.

If you need to reduce the dust content of the exhaust gas, you should use a bag type dust remover or wet dust collector before discharging the gas.