초록 ▼

An exemplary process for grinding cement clinker using rollers comprises introducing cement clinker into grinding contact with rollers operative to grind the clinker into particles; and introducing to the clinker and/or rollers, in an amount of 0.001-0.5 percent based on the dry weight of clinker, a

An exemplary process for grinding cement clinker using rollers comprises introducing cement clinker into grinding contact with rollers operative to grind the clinker into particles; and introducing to the clinker and/or rollers, in an amount of 0.001-0.5 percent based on the dry weight of clinker, a binding-densifying agent comprising at least one polymer having an average molecular weight of 50,000-500,000. The clinker may be ground alone or in combination with other agrillaceous or pozzolanic materials.

대표청구항 ▼

[ I claim:] [20.]20. A process for improving grinding operations in which cement clinker is ground into cement particulates using rollers, said process comprising: introducing a cement clinker into grinding contact with rollers operative to grind the clinker into cement particles; and introducing to

[ I claim:] [20.]20. A process for improving grinding operations in which cement clinker is ground into cement particulates using rollers, said process comprising: introducing a cement clinker into grinding contact with rollers operative to grind the clinker into cement particles; and introducing to said clinker or said rollers an amount of 0.001-0.5 percent based on the dry weight of the cement clinker being introduced to said rollers, a binding-densifying agent comprising at least one polymer having an average molecular weight of 50,000-500,000, said at least one polymer of said binding-densifying agent comprising a polyacrylic acid or salt thereof, a polyvinyl alcohol, a polyvinyl acetate, a polyvinyl chloride, a polyoxyethylene, a polysulfonic acid or salt thereof, a polyamide, or mixture thereof; and further introducing, into grinding contact with said rollers along with said cement clinker, a further agrillaceous material comprising a clay or a pozzolanic material selected from the group consisting of a natural pozzolan, flyash, limestone, blast furnace slag or mixture thereof; said cement clinker being used in an amount which exceeds 40 percent by weight of the total of materials comprising said clinker and said agrillaceous or pozzolanic material.