FORMATION PECULARITIES OF METALL-SLAG SKULLS ON TWO-LEVEL OXYGEN LANCES AT BLOWING OF CONVERTER BATH
Bibliographic record
Abstract
The paper considers technological options of converter melting when using two-level lances of different design. The formation peculiarities of metal and slag scaffold on the surface of two-level oxygen lances at top bath blowing of 160-ton converters, depending on the blowing progress with different levels of foamed slag-metal emulsion formation in the working space of the aggregate are reported. An adjoined three-dimensional mathematical model of hydrodynamic and mass-transferring processes in the slag and metal converter phases is proposed; it can be used for the study of circulation process regularities in the converter cavity at different positions of two-level lance, nozzle number in the upper and lower levels, nozzle angles of inclination, the oxygen consumption through the nozzle and other process parameters. Numerical simulation of metal blowing in a 160-ton converter with the use of two-level lance with fi ve Laval nozzles in the bottom tip and eight nozzles in the top row was carried out. These data form an idea of the nature of the metal and gas and slag phase in the converter.
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How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.
Distilled classifier scores by category (both heads)
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.001 | 0.000 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".