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提高除尘风机用电的合理性—(王刚),首钢炼钢厂在保证除尘效果的前提下,如何提高除尘设备用电的合理性,对降低吨钢电耗指标具有重要意义。首钢炼钢厂3座转炉配备除尘风机6台,总用电容量为1560kW(260kW三相异步电动机6台)。自1964年投产至1981年,风机风门一直处于常开(即不管炉子处于吹炼状态或非吹炼状态,风机均处于负荷运行状态)。然而,每炉钢的吹炼时间只有13min,辅助时间却为12或13min(目前为10min)。由于辅助时间内没有烟尘外排,不需要满风排尘,故这段时间内风机的用电包含着不合理的部分。但在每个冶炼
(Wang Gang), Shougang Steel Works in ensuring the premise of dust removal, how to improve the rationality of dust removal equipment, electricity consumption, reduce the ton of steel electricity consumption indicators of great significance. Shougang Steel 3 converter equipped with dust blower 6, the total capacity of 1560kW (260kW three-phase asynchronous motor 6). Since its commissioning in 1964 until 1981, the blower damper has been normally open (ie, the blower is under load regardless of whether the furnace is in the blowing or non-blowing state). However, the blowing time per furnace steel is only 13min, auxiliary time was 12 or 13min (currently 10min). As the auxiliary time there is no smoke efflux, do not need full of dust, so fans of this period of time contains an unreasonable part of the electricity. But in each smelting