Effect of Microwave Pretreatment on Grindability of Lead-Zinc Ore

Table 2

Grinding test plan of lead-zinc ore with microwave pretreatment.

Test label	Microwave pretreatment parameters				Grinding parameters
	Microwave type	Power (kW)	Time (s)	Cooling method	Speed (rad/min)	Grinding time (min)
1#	No microwave irradiation	/	/	/	400	10
2#	Continuous microwave	0.8	70	Nature cooling	400	10
3#	Continuous microwave	0.8	70	Water quenching	400	10
4#	Continuous microwave	7	15	Nature cooling	400	10
5#	Continuous microwave	7	15	Water quenching	400	10
6#	Pulsed microwave, pulse width was 1 ms, working frequency was 500 Hz	7 (peak)	15	Nature cooling	400	10
7#	Pulsed microwave, pulse width was 1 ms, working frequency was 500 Hz	7 (peak)	15	Water quenching	400	10