Hoogovens Groep B.v.

Hoogovens Staal B.v.

Herman C Van Kuijeren

Klaas Vink

Jacobus W Van Der Lee

Apparatus and method for manufacture of DR (Double Rolled) steel strip in which a continuous annealing furnace is arranged for annealing of cold-reduced steel strip passing continuously through said furnace, and a rolling mill for cold-rolling of steel strip is arranged to receive in-line the output of annealed steel strip from said furnace. The mill has at least one roll stand having a pair of work rolls of which only one is driven externally. Rolling fluid, preferably free of mineral oil, is supplied to the strip being rolled in the rolling mill, and is removed from the strip prior to entry of the strip to downstream tension-applying means.

Apparatus and method for the manufacture of DR steel strip

Apparatus and method for manufacture of DR (Double Reduced) steel strip in which a continuous annealing furnace is arranged for annealing of cold-reduced steel strip passing continuously through said furnace, and a rolling mill for cold-rolling of steel strip is arranged to receive in-line the output of annealed steel strip from said furnace. The mill has at least one roll stand having a pair of work rolls of which only one is driven externally. Rolling fluid, preferably free of mineral oil, is supplied to the strip being rolled in the rolling mill, and is removed from the strip prior to entry of the strip to downstream tension-applying means.

Apparatus for removing a liquid from a mixture of liquids in a collecting tank has a drain box in the collecting tank having a weir for passage of liquid being removed into the drain box and a conduit for discharge of the liquid from the drain box. The drain box is movable up and down in the tank. To improve the separation of the liquids by control of the position of the weir, the vertical location of the drain box in the tank is determined by height-adjusting means connected to the drain box. the height-adjusting means is controlled in dependence on the output of a sensor sensing the level of liquid in the drain box.

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Heerhugowaard, Netherlands

Herman C Van Kuijeren