Automatic regulator for steel ladle bottom argon-blowing system

The utility model belongs to a fine refining device outside a furnace of a steel ladle refining furnace, particularly an automatic regulator for a steel ladle bottom argon-blowing system. The utility model is characterized in that a pressure reducing mechanism and a flowrate detecting and adjusting mechanism of the utility model are connected in series together, and the pressure reducing mechanism, the flowrate detecting and adjusting mechanism and a by-pass mechanism are connected in parallel; the flowrate detecting and adjusting mechanism is composed of a flowrate detecting mechanism and a flowrate adjusting mechanism, wherein the flowrate detecting mechanism and the flowrate adjusting mechanism are connected in series through a pipe passage. An automatic fluid adjusting device is applied to the utility model, and the prospective effect is obtained; a high-pressure side blowing mechanism is additionally arranged, a new steel ladle or a steel ladle of which air bricks have clogging situation realizes automatic argon-blowing adjustment, and the utility model can be designed into single circuit and can also be designed into double circuits and multiple circuits to adapt to different technology situations of steel mills.