For the design of a large powder handling plant of 2 Mt/a phosphorite milling and slurry conveying,the process flow,process control,equipment selection and its electrical design,etc.

Through researching on the relationship between the water content(%,wb),dissolution ratio(%) and hardness(g) of the rice dough and milling method including dry milling without washed,dry milling after washed and wet milling,the effects of milling method on the rice dough were studied in this paper.

Study of ultra fine grinding for fly ash and its properties;

Trial study on grinding dynamics coverter of steel slag;

Theory and practice of grinding high-moisture content materials by roller mill;

The use of grinding aids in the manufacture of cement can reduce production costs and energy consumed.

The results reveal that the grindability of the clinker and PSD of cement are improved by grinding the shaft kiln clinker and rotary kiln clinker altogether.

The experiments of grinding coarse fly ash drained off from Huaneng Power Plant in Nanjing were carried out with ball crusher.

Maintenance and protection of roller mill;

Set feeding trajectory and infeeding speed as multiple target functions and take horizontal distance and vertical distance between feeding roller and fast roller, rotational speed and diameter of feeding roller and inclined angle between the fast roller and slow roller as design parameters, Particle Swarm algorithms and MATLAB were used in the optimization design of roller mill.

Detailed analysis is made for the feeding non-uniformity phenomena frequently occurred in the feeding system of a break roller mill, and specific settlement methods for them are set forth.