This paper introduces the leading idea of designing the industrial control network of large coal washery, and explains in detail some notes of and methods for implementing the design of the industrial control network.

Slime-water treatment for a small coal preparation plant;

Conversion of cleaning process and equipment for a small and medium coal preparation plant;

The screening workshop,breaking preparement workshop,drying workshop are the place of dust concentrating in the preparation plant.

The application in many preparation plants has proved the noticeable economic and social benefits it can obtain.

The paper introduces it use such methods as capture noise abatement, acoustic septum, acoustic enclosure, damping vibration attenuation, wall noise reduction by absorption and etc for the main preparation plant workshops of the scond lining Coal Mine.