IC693MPL753
IC693MPL753产品介绍:
汽化冷却系统
目的是冷却加热炉水梁和立柱,系统采用强制循环,外送蒸汽压力1.3Mpa,汽包运行压力为1.4Mpa。采用强制循环汽化冷却:设置备用电动循环水泵,经常有一台电动循环水泵备用,当运行的电动循环水泵故障停机时,备用电动循环水泵自动投入运行,保证系统正常工作;设置事故柴油机给水泵,在给水系统中采用柴油泵作为电动给水泵的停电事故备用,当停电时,给水系统的柴油机给水泵启动,首先将除氧水箱内的水供入锅筒内,另外软水箱设一出口与给水泵入口集管相连,两者之间设常闭闸阀,停电或除氧器不能正常运行时该阀开启,由柴油机给水泵将软水直接供入锅筒内;为了保证每一回路的正常运行,在每一回路上设置流量检测装置,当单一回路流量低于正常流量的60%时,进行声光报警。
5.2 电控系统
电控是指电器逻辑控制,针对的是开关量信号的状态控制。主要包括钢坯的上料,称重,测长,剔废,进出炉及步进梁的控制,如图3所示。
钢坯由提升机提升至步进上料架上,经辊道进入步进梁式单蓄热加热炉。坯料经剔废,称重,入炉辊道输送过程中的测长后(测长报警)进入加热炉,根据计算机预先设定好的布料图自动布料;布料完成后,钢坯在炉内通过步进梁的矩形运动,从进料端一步一步地移送到出料端;当轧线给出要钢信号时,步进梁向前走一个步距,将钢坯托到炉内悬臂辊道上,出料炉门自动开启,开始出料过程,出料辊道以炉外轧线接钢辊道相同速度运转,在炉内出料辊道上的钢坯高速出炉;当钢坯尾部通过炉外出钢辊道未端的激光冷热金属检测仪,激光冷热金属检测仪检测到钢坯信号时,给出出料完毕信号,出料炉门自动关闭;完成出钢程序后,悬臂辊道低速转动,到下次需要接钢时停止。整个过程可以由编写好的程序自动控制,也可以由控制室内分布手动控制[4]。
步进梁做矩形运动,行程由线性位移传感器控制,并具有自动纠偏功能,保证每根钢坯间的距离合适并都能放置在出料悬臂辊道的合适位置。步进梁具有正循环,逆循环,踏步,中间保持等功能,以满足不同工况下钢坯在炉内的运输要求[2]。
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↑价格 〓 全场2折
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↓质量 〓全新原装,进口正品
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【厦门光沃自动化设备有限公司】
【联 系 人:陈小姐】
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