Emerson 01984-1460-0003

3HAC028170-001 3HAC028196-001 3HAC028254-001 3HAC028286-001 3HAC028300-001 3HAC028301-001 3HAC028302-001 3HAC028320-001 3HAC028327-001 3HAC028336-001

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Description

原料输送联锁:

由于原料输送采用气力输送方式,我们在输送管连接部分安装有位置开关,只有当位置开关到位时,才可进行物料输送.

固体称量

固体部分称量包括沸石、五钠、芒硝、纯碱、增白剂及胶粉等六种物料.其中,沸石与五钠共用一个称量斗,芒硝与纯碱共用一个称量斗,增白剂与胶粉共用一个称量斗,供料采用双速电机(即快、慢供电机)实现.传统的称量控制方式采用称量控制仪(如PHILIPS公司的PR1615)实现,而在本系统中,称量控制是由S7 414完成的.

称量控制原理如下:

若检测重量大于快供值,则快供电机启动,慢供电机停止;若检测重量大于慢供值且小于快供值,则慢供电机启动,快供电机停止;若检测重量大于提前值且小于慢供值,则慢供电机停止,快供电机停止.

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