Tubular heat exchanger used for treating hot sulfur-containing gases comprises a wall made of composite material having a steel plate and a sealed refractory concrete stamping composition and a tube made of a heat resistant material

摘要

Tubular heat exchanger (10) comprises a wall made of composite material having a steel plate (12) and a stamping composition (14); and a tube (18) made of a heat resistant material inserted into the wall. The stamping composition is a sealed refractory concrete with corundum as essential crude material. The tube consists of a plasma-sprayed heat-resistant material.