Auto-control System for Coking Coal Mixing

In a coal preparation production process, several kinds of raw coals have to be mixed into a mixture to a certain proportion and the accuracy of mix and the reliability of the coal mixing system will have a direct influence on the coke quality.

Overview

Advantages

Application

In a coal preparation production process, several kinds of raw coals have to be mixed into a mixture to a certain proportion and the accuracy of mix and the reliability of the coal mixing system will have a direct influence on the coke quality and economic benefits.

In the auto-control system for coking coal mixing, a radar level meter is used to measure the coal level in the coal-mixing tank to attain an accuracy nearest to millimeter. By using the auto-calibration technology for metering devices, the system achieves in the starting stage of each production process the zero-point calibration operation for nuclear scale or belt weighing scale to reduce the errors of the measuring devices to the lowest. During system operating, the dynamic error accumulation control function is applied to automatically adjust the amount of coal supply according to accumulated error variation to have the coal supply control error of the coal mixing tank put under control below 0.2%, so that a high accuracy of coal mixing is truly realized and coke quality and enterprise economic benefits are ensured effectively.

Applications in the field of coal automation

Ready to order