Control for cement mixture composition - uses data processor to regulate quantities of additives in response to sensed composition

摘要

The control system regulates the mixture quantities of materials to be mixed. The system uses a measuring device for determining the present quantity added to the material to be mixed, and has a dosing device for adding to the added quantity, which is controlled as a function of the determined quantity and a predetermined prescribed value. The system uses a data processor which transforms the measured valve and the predetermined prescribed value in order to determine the necessary additional quantity to obtain the prescribed value. The system has a control for the dosing device which ensures that the determined additional quantity is added to the material to be mixed. Data being transmitted to the data processing system by two electrodes (8a,9a).