逆流式除铁、除铁更充分，设有回浆管、浆料不浪费。
Countercurrent type is used for remove iron, we adopt return flow pipe to make best use of raw material.
但要从根本上解决进浆管堵塞还需增大一级锚孔孔径或改用无粘结钢绞线材料等。
But for thoroughly solving the problem, the diameter of anchor hole should be enlarged further or non-binding stranded steel wire should be used.
当料浆的自然压力大于塑料管的耐压值后，便可使塑料管破管，从而使生产中断，浪费大量水泥、尾砂，并造成井下污染。
When the pressure is greater than the standard of the plastic pipe, the pipe will break, slurry and cement will escape from the pipe and pollute the mine.
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