Abstract
Increased stock quality and efficiency of the stock preparation process are the main focuses of the OptiFeed concept. A conventional stock preparation system, including approach system. has some major problems, such as uncontrollability of consistency of each furnish and large dead volume in tanks. Immediate problems with such systems are stability. such as consistency swing. and the extended time required for grade changes. Through applying the new process solutions. equipment and automation within the OptiFeed concept uniform stock parameters such as consistency and pressure of furnish fed to the paper machine can be achieved. At the same time. faster grade change time can be obtained which also results in better efficiency. In addition, less space and energy is required. which reduces investment and operation costs.In addition to several partial OptiFeed system is operation, the first full-scope references have been successfully started up. Those OptiFeed systems are discussed in this paper. including the first mill results and experiences.
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