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Setting Automation of Service Water Consumption Rate at Metallurgical Plants

The paper considers a method for rate setting of service water consumption by a metallurgical plant with account to the grade range of the main product output. The service water consumption rate is determined by developing the effective rated characteristics. The characteristics represent the dependence describing water consumption under the actual equipment operating conditions and technological process organization. When developing the characteristics, the higher the data significance stands for the lower the water consumption. Therefore the effective rating characteristics tends to the indications with a lower water consumption. In the absence of metering instruments, design or calculated data obtained based on the mathematical model of the water supply system of a plant are used instead of actual water consumption data. To identify the rated characteristics, two types of water consumption indicators were considered: the absolute water consumption volume, the specific water consumption per unit output. The problem of predicting the service water consumption was considered. This problem is solved through the substantiated determining of specific water consumption. The main functions of automated information system for rate setting and prediction of service water consumption are given. The examples of determining the service water consumption rates employing the system are considered. The results of automated rate setting of service water consumption is determining and decreasing the water losses in the service water supply system. Service water saving in the service water supply system will result in the decrease of electric power consumption for service water pumping purposes.