混匀的方法有多种，但常用的方法是把不同批次的矿石一层层地铺成料堆，然后从料堆垂直切取。

There are several methods for blending, but the common way is to lay layers of different batches of ore on a bed, and then cut slices vertically through the bed.

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我国目前存在着焦丁回收地点不当、回收量不足及焦丁与矿石混匀方法不完善等方面的问题。

Now there are some problems such as unsuitable recovering location, insufficient recovering quantity, imperfect ore-coke nut mixing method and so on.

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