Importance

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Abstract

The mass flow of the individual goods fed from a respective storage tank by a conveying apparatus is measured by a flowmeter. The mass flow is controlled via a controller. As long as the actual value of the flow masses of each separate component does not correspond to their respective rated value, all mass flows are returned via a switch-over valve and a return line back to the respective storage tank. When all actual values correspond to their rated values, the switch-over valves will switch such that the individual components are guided through the feed line to the mixing apparatus. The mixture produced in this mixing apparatus is once more analyzed by further detecting devices. If the analyzed actual values again do not correspond to the rated analyzed values, an immediate switching of the switch-over valves to the return bypass operation is again initiated. It is therefore no longer necessary to lead a mixture in the form of waste away during the time span, during which the individual control circuits begin to stabilize, because at such duration the product will not yet correspond to its rated values. The individual components are rather fed back again to their respective storage tanks during such time span, such that no loss of production is suffered and a high quality of the final product is attained.

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