NOUFERROUS METALLURGICAL EQUIPMENT

The lead melting furnace is commonly used in lead smelting process with a high energy demand and carbon emission. The regenerative lead melting furnace is widely used in recent years, which uses flue gas heat recovery to reduce energy consumption, and also uses the natural gas as energy which has advantages such as high heat-value, low carbon emissions, high combustion effect. From the natural gas trunk line to the down-stream metallurgical factories, the pressure of natural gas must be dropped down to adjust to the need of down-stream factories. So it is important to keep the up-stream natural gas stations and gas pressure regulating stations operating safely to ensure the down-stream lead smelting in the normal status. The 3D fluid simulation is an effective analysis method for the regenerative lead melting furnace gas supply pipeline system pressure rising operation of the gas station. With a numerical simulation of the semi-enclosed pipeline system pressure rising from 2.0MPa to 5.1MPa, the transient 3D pressure contours can be generated, which is used to analyze safety weakness theoretically. Also the simulation conclusions is useful for the design and layout of the pipelines and facilities of the natural gas stations.