|Project executed on||2010|
|Technical specification||Pressure||-0.2 bar (vacuum)|
|Measurements||DN 1000, length: 180 m.|
|Material||Vinylester with inner liner of Symalit FEP 1000 GGS|
|Temperature||85°C/ 158 F|
|Market segment||Metals & Mining|
The engineering and supply of an off-gas pipe of a sulphuric acid production plant, associated to copper and nickel mining. Roasting of sulphuric ores, combustion of elemental sulphur and thermal decomposition processes lead to off-gases containing sulphuric acid droplets. These off-gases are transported, in this case in a stream of nitrogen gas.
The piping system had to be chemically resistant against sulphuric acid (H2SO4) droplets of concentrations up to 97% and temperatures reaching up to 85°C/158 F. A flange-less piping solution minimizes potential leakage sites and maintenance costs. A light weight construction was advantageous for the handling of the large pipe diameter. The pressure in the pipe is -0.2 bar (vacuum), gas volume 35,000Nm3/h.
The advantaged and reasons why we choose Symalit FEP 1000 GGS: