Patent ID: 7807091

Claim:
A method for the introduction of a liquid into a molten mass under pressure, comprising the steps of: (a) bringing said liquid to a predetermined pressure greater than the pressure of said molten mass by means of at least one pump, the pump comprising a plurality of pumping units, staggering the pumping units in such a manner that the liquid is pumped by the different pumping units at distinct moments in order to effect continuous and uniform delivery of said liquid; (b) feeding said liquid to a plurality of storage tanks, each storage tank being in fluid communication with at least a pair of the pumping units via at least a pair of respective feeding lines, and (c) continuously injecting said liquid into said mass at an injection pressure equal to said predetermined pressure by means of a plurality of injectors independent from each other in respective fluid communication with said plurality of storage tanks, in order to introduce said liquid into the molten mass without appreciable interruptions.