Stainless Steel Fabrication of a Tubular Primary & Secondary Heat Exchanger for the Mining Industry
PRE-heat, Inc. provides custom designed and manufactured industrial air to air heat recovery equipment and system for a variety of industries. We were contracted by a customer in the mineral drying industry to design and fabricate a very high temperature primary heat exchanger for indirectly heating an airstream used to convert Ammonium DiMolybdate to Molybdic Oxide. The primary heat exchanger was to be augmented with a secondary tubular heat exchanger for preheating the cold combustion air for the #2 fuel oil burner on the primary indirect heating unit. The system goal is to heat 10,956 #/Hr to 1,175 F at 14,000 elevation for the mineral dryer. This was achieved using a 4 shell pass tubular unit, model 24-24-30-61.25-4ST with 309S SS heat transfer surfaces. The unit is internally insulated with 6 of ceramic insulation. The combustion chamber is designed to operated at 10,250 #/Hr, 1,520 F and fired with #2 fuel oil due to its location at +14,000 feet on a mountain in a remote location. The resulting heat exchanger effectiveness is +76%.
This customized equipment met the customers specifications and was shipped on time and on budget for installation in Peru, SA.
Contact PRE-heat, Inc. for information about how our heat exchangers can be used on your application.
Highlights of this Stainless Steel Tubular Heat Exchanger