Mining and processing complex (GOK), which is builded for cement production limestone extraction, uses a variety of equipment, that requires the following types of converters:
- cement kiln main drive
- rotary and jaw crushers
- hammer mills
- spheric mills
Conveying lines are used for both row initial material and final product transportation.
Drive of mechanisms, listed above, is activated by using various kinds of converters, both for adjustment and for launch.
Given the fact that for all the equipment a relatively high starting torque is required, either the asynchronous engines with phased rotor or frequency start with frequency converter (synchronous drive) are used.
For lighter starting adjustment just asynchronous engine is used more frequently. Start/speed control of such an engine is also provided with frequency converters help.
For cement industry TET ESTEL offers the following types of equipment: