Fluidization Analysis of Thickening in the Deep Cone for Cemented Paste Backfill

Table 1

Technical parameter statistics before and after the reform.

Item	Failure time of thickener (h)	The concentration of slurry at the bottom (%)	Remarks
Before reform	14	74–79	The concentration was not uniform and the fluctuation range was bigger.
After reform	1	78–80	The concentration was more uniform and stable at about 78%.