| Patent Number |
Title Of Patent |
Date Issued |
| 4997578 |
Method and apparatus for dewatering and squeezing material |
March 5, 1991 |
| An apparatus for dewatering and squeezing a water containing material comprises a drum with a sieve mantle defining two co-operating drum sections, each comprising a feed screw extending therein. The first section of the drum in the feed direction is formed for dewatering of the mate |
| 4941945 |
Method for clarifying green liquor |
July 17, 1990 |
| A method of cleaning green liquor of solid particulate impurities by adding caustic lime corresponding to 0.5 to 10% of the amount of caustic lime needed for complete causticizing of the green liquor to the green liquor in a soda dissolving tank or in a separate mixing tank to which the |
| 4908101 |
Method and apparatus for mixing chemicals into fiber pulp |
March 13, 1990 |
| In a method and an apparatus for mixing chemicals into a fibre pulp, the pulp passes in a space between a fixed casing and a rotating device through three treatment sections. In the first treatment section a transport screw is arranged for transporting the pulp and impart to it a pre |
