Design and build a control system to generate foam used in soil conditioning for underground tunnel projects. The unit will control the flow of water, air, and chemical to produce a specified  consistency of foam. Unit must be compact and fit in a small underground mining train. System must be remote controlled.


Provide Electrical and Mechanical CAD drawings of design, EASI also provided the follow Key components:

  • (2) VFD controlled Continuously rated pumps
  • Mass flow and Magnetic flow meters provide PID control
  • PLC based control in a NEMA 4 Enclosure
  • HMI remote in a NEMA 4 Enclosure
  • PLC program written to meet customers needs
  • Total system contained in rigid steel frame protecting from underground elements
  • Dual Emergency Stop push buttons
  • Heater to eliminate condensation
  • Specialty designed spray nozzle to assist in product mixing along with static mixer