Baking Furnace Research Articles

Modeling and simulation of an anode carbon baking furnace

The anode temperature profile in a Hydro Aluminium baking furnace is obtained by solving the three dimensional heat equation. The main heat transfer and chemical processes are taken into account. Due to symmetry, one half of a pit is modeled. Along the gas path, submodels are derived for the under-pit area, pit area and under-lid area. For the gas flow, a stationary model is derived, whereas the heat equations are dynamically solved. The numerical model is derived from the control volume formulation

Recent developments in carbon baking technology

As the aluminum industry strives to improve productivity and efficiency, carbon baking technology is one area receiving attention. With the anode plant accounting for a significant portion of total smelter investment, completely new installations are often out of the question. But the alternative of retrofitting existing carbon baking furnaces can often provide incremental capacity, reduce fuel consumption, and cut unwanted emissions.

4371333 Device and process for operating an open baking furnace for manufacturing carbon-bearing, shaped bodies

A B S T R A C T Device and process for operation of open baking furnaces, in particular such ring-type furnaces for manufacturing anodes for the aluminum electrolytic process, are such that for each so called fire the sealing chamber and/or chamber in the cooling zone can be saved in that the flue gas exhaust mani-fold is not situated on the headwall but instead on the flue (11), and/or the opening (36) of that headwall (25) on which the last fresh air supply manifold is situated is closed off by a sliding baffle (51). Openings (34) corresponding in cross section to that of the connected part of the flue gas exhaust manifold (40) are provided in the region of the flues (11,12,13,14). The advantage of the process lies in the greater flexibility in furnace operation, which results either in an increase in production or an increase in product quality. (Fig. 1)