| 摘要 |
The invention relates to an industrial plant (1) for producing or processing liquid, red-hot or hot metal (2, 6), particularly in a blast furnace installation or in a rolling mill, wherein a safety-relevant area (B1, B2) is formed in the direct vicinity of the liquid or red-hot metal and the presence of a person is at least periodically not allowed. A detector unit (10, 12, 14, 16A, 16B) is provided for the surveillance of said area, detecting electromagnetic radiation emitted by a present person or identifying the absence of electromagnetic radiation blocked by a present person. Furthermore, the invention provides for an evaluation unit (22) which is able to detect the presence of a person from the output data of the detector unit (10, 12, 14, 16A, 16B), and for a control unit (24) which is connected to the evaluation unit (22). If a person is present in the safety-relevant area (B1), the control unit automatically initiates an action acting against the presence of the person. By forming a plurality of safety-relevant areas (B1, B2, B3) having different danger levels, gentle stopping of the industrial plant (1) is made possible. |
