The coal energy mixture preparation system is designed for the production of small batches of mixtures with specified quality, using two components with different ash content. Typically, the components consist of raw coal of variable quality and washed coal, stored near the mixing unit. Coal with extreme parameters (high-ash and low-ash) is loaded into two separate bins. This setup allows for the creation of a coal blend with any ash content within the range defined by the input materials.
The energy mixture preparation system can operate in either automatic or manual mode.

In automatic mode, the system operates completely unattended. The desired ash content of the mixture is set in the quality control room. The target batch weight of the coal mixture is set on the operator panel of the scale in the weighing room. The system remains in standby mode. Upon activation of the loading conveyor, the system automatically starts the following components in sequence: the mixer and the feed conveyors, in order to produce the desired mixture.
An algorithm implemented in the system calculates the inverter operating parameters to control the feed conveyor throughput, ensuring the specified blend is achieved while maintaining maximum system performance.
After the target batch weight is reached, a control signal from the belt scale installed on the receiving conveyor stops the feed conveyors, thereby completing the mixture preparation process. The receiving conveyor continues operating to load the entire coal batch into the awaiting truck.

In manual mode, all operations are carried out manually by the operator using control elements located on the main panel of the control cabinet.

The energy mixture preparation station also includes an operator room, which houses the power and control cabinet as well as the operator panel.