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装设在混凝土搅拌楼砂、石料仓顶部,由电极和线路板组成(图1)的混凝土骨料仓仓满指示器,是实现砂、石上料自动化必不可少的装置。宝钢搅拌楼原来采用日本引进的骨料仓仓满指示器(图 2),是用日产MC3302P集成四运算放大器制成。结合我国具体情况,我们利用国产元件F007运算放大器代替日本的集成四运算放大器,制
The full-scale indicator of the concrete aggregate hopper, which is installed on the top of the sand and stone silos of the concrete mixing plant and consists of electrodes and circuit boards (Fig. 1), is an indispensable device for the automation of sand and stone feeding. Baosteel Mixing Building originally used the Aggregate Warehouse Full Indicator introduced by Japan (Figure 2), which was made of Nissan’s MC3302P integrated quad operational amplifier. Combining with our country’s specific conditions, we use domestically produced component F007 operational amplifier instead of Japan’s integrated four operational amplifier.