The Working Principle and Control Requirements of Automatic Ready Mix Plant

Automatic Ready Mix Plant can be divided into four parts: sand feeding, powder (cement, fly ash and expansive agent etc.)feeding, water feeding additive feeding, mixing system and transportation system. Its Working Process, after the electric control system of Automatic Ready Mix Plant is in the power, the control computer will enter the man-machine dialogue interface. The system will be in the initialization process, including the formula, the grade of concrete, the slump, the production volume. According to the weighing data,to check the metering hopper, the output of empty material or full material with signal, which will prompt the operator to determine whether to start mixing control system. To start the sand and stone belt motor feeding metering hopper; to open the butterfly valve of fly ash and cement tank, start screw machine motor to transport the fly ash and cement to the metering hopper. To open the valve butterfly of water and additives, to make the water and additives flow into the metering hopper. The measurement meets the design requirements to open the hopper door, the ingredients will enter the mixing drum to stir. To turn on the mixer door at the set time, and the concrete will go into the truck.

The Control Requirements of Automatic Ready Mix Plant

1 Each cylinder, control valve and motor should be run according to the process of concrete mixing plant operation requirements. Must keep the each cylinder, control valve and motor control accurate, stable and reliable.

2 The control system has two modes of automatic and manual operation, which are independent with each other.

3. The control system has good anti-interference ability and perfect self-protection function alarm.

4. Controlled by micro computer, you can display the working status and fault alarm of whole system.