Hard Hat evaluated the existing cooling water systems with regard to capacity, productivity, optimization, and efficiency. A water balance study was conducted, concentrating on the water use through the various cooling systems and heat loss/gain through the hot and cold sides of the cooling systems. Hard Hat also evaluated filtration needs and capabilities, as they related to the increased production rates. Pumps, piping, tank storage, hydraulic capacity of equipment, and modifications to increase capacity, were also considered.
Hard Hat is conducting a feasibility study that will result in a selected set of options for each portion of the necessary cooling water upgrades. These options will then be carried through to detailed engineering. The level of complexity involved with each option may vary from a simple pump replacement to a complete reconfiguration of cooling loops, filtration technologies, and towers. Systems evaluated include the direct and indirect cooling systems, the caster mold water and laminar system cooling water, recycling, wastewater treatment, scale pits, sand filtration, cooling towers, pumps, and piping.