For results analysis experiments from research hydro- and gas dynamics bath in the ladle installed, that when rotated submersible lance around the axis best dispersion and dispersal by volume formed gas bubbles is provided at the speed rotation, which does not exceed 2,17 s-1, at specific gas consumption up to 0,018 m3/min. Performed by authors current article calculations of values specific power mixing using the expressions given (under constant conditions regarding bath temperature,mass of melt and gas consumption showed that the quantities vary greatly among themselves. This does not allow you to recommend expressions for mechanical transfer on condition of ladle processing of a melt, including using a rotary lance.From the analysis results calculations by expressions, it follows that the power mixing, mainly determined by the work Archimedes taking into account the forces on isothermal expansion of the gas bubble.With increasing speed submersible lance the gas saturation of the bath is reduced, which may be related with the formation exit channels gas volumes on the surface bath. It affects both the power mixing, and on all processes that accompany the blowing bath with gas.Impact of size, lifting speed and the trajectory movement up to the surface bath bubbles the power mixing is determined by the power Archimedes.To take into account the impact rotation submersible lance around the axis is necessary quantification dissipated energy gas jet which depends on its length and the speed lance. When using two nozzles submersible lance, with nozzles located at an angle 900 to the axis lance the length jets decreases in accordance with the increase rotational speed lance.Proposed expressions to calculate the power mixing the bath in the ladle with a rotary submersible lance. It is shown that condition increase in mixing power there is an increase in size pop up to the surface bath bubbles, which in turn can negatively affect on the degree assimilation reagents to remove impurities at ladle refining hot metal. Dependence is determined dissipation energy gas jets from the rotational speed the submersible lance.The way to increase stirring intensity may be combined use mechanical stirring with additional dispersion gas volumes. Under such circumstances should be expected increase in intensity mass-exchange processes in a bath.

The concept introduction low-slag is substantiated converter technology using resource and an energy efficient route «blast furnace – converter with combined purge» in raw material conditions Ukrainian metallurgical industry. Provided technological advantages preliminary refining hot metal in the filler bucket by injection deep into the melt powder mixtures of reagents in the flow gas-carrying through the nozzles submersible rotary lance. For results high-temperature experiments defined rational refinement regimes, type and ratio in mixtures low-cost cheap reagents. The concept is proposed energy efficient training slag cast iron to low slag converter melting through implementation desulfurization, desiliconization and dephosphorization of hot metal in the ladle injection deep into the melt powder mixtures reagents in the stream carrier gas through the nozzles submersible rotary lance.At smelting in Ukraine in accordance with the raw material base pig iron, containing 0,86-1,43% Si, 0,08-0,68% Mn, 0,022-0,065% S, 0,035-0,065% P, at the first stage technological route using elements low-slag technology converter melting it seems actual development energy efficient integrated technology refining hot metal in the ladle with the removal of silicon, sulfur and phosphorus with the use of cheap non-reagents.The use of integrated technology will allow depending on the specific conditions work of metallurgical enterprises and metal assortment to provide: improvement quality and cheapening production of pig iron in blast furnaces, including in transition conditions to injecting coal-pulverized fuel; melting in converters with combined purge for low-slag technology cheaper high quality steel; rational charges of magnesian modifiers for preparation and use the final converter slag for application on lining in order to create a protective.The authors of the work the principle opportunity is shown the use cheap non-deficit fluxes on the basis of lime (CaO) or soda (Na2CO3) as flux for complex refining of hot metal with high oxidation potential and high sulfide and phosphate capacity.Done experimental test a one-step removal method silicon to 0,15-0,20% and phosphorus to =0,008-0,010% by purging previously desulphurized hot metal through the submersible rotary lance oxygen jets bearers powder mixtures low-cost cheap reagents.