Primary Crushing and Autogenous Copper Ball Mill & Overflow Ball Mill

A ball mill grinds ores and other materials to a typical product size of 35 mesh or finer.

The feed to a ball mill is prepared by...
· Single or multistage crushing and screening
· Crushing, screening, and/or rod milling
· Primary crushing and autogenous/semiautogenous grinding

Mine Ball Mill Normal feed sizes:
· 80% passing 1/4" (6 mm or finer) for hard ores
· 80% passing 1" (25 mm or finer) for softer ores
(Larger feed sizes can be tolerated depending
The length to diameter ratio of cylindrical mills range from 1 to 1 through 3 to 1. When the L/D ratio is 2 to 1 or greater, werefer to the mill as a Tube Mill.
The two most popular types of ball mills are

In the discharge end of this mill, a slotted full diameter or partial diameter grate with discharge lifter assembly conveys the material to the discharge trunnion opening. The grate serves to retain balls, tramp, and coarse material. A gradient created between the feed opening and the discharge slots eases the flow of material.
Trunnion Overflow Discharge Ball mill
A trunnion overflow mill has an open discharge end. Material flows through the trunnion as a result of the pulp gradient between the feed and discharge openings. A reverse helix in the discharge trunnion liner retains balls in the mill.

ZTIC Ball Mill Feature

1The cylindrical mill adopts the driving type edge-driving, center-driving, edge-driving with multi-point meshing, etc; driven by asynchronous motor +reducer +pinion and gear as well as synchronous motor +

air l\clutch + pinion and gear.
2Generally supported by static-dynamic pressure bearing on both ends. Fuuly closed self-aligning 120º osculation rocker bearing is used. Also single or double slipper staic- dynamic bearings can be used. The bush is made by NC machine.
3 The large open gear is designed using AGMA standard, Equipped with reliably sealed gear housing and grease ahtomatic spraying lubrication system.The shell is key part of a mill. Carry out finite element analysis on it with computer to ensure the reliable operation;
4 The shell is automatically welded, ultrasonic inspected, wholly annealed and machined by large special machine tools on one chucking; there special seal on static-dynamic connection parts , ch as feed and discharge hoper, trunnion, etc, to prevent oil and slurry leakage;
5 The liner is of wear-resistance material mad by our company, wich has been specially heat-treated, with high hardness and long service life. Also other wear-resistance casting or rubber liner can be used;
6 There are slow speed drive for medium and large mill;
7The high and low pressure lubricating station is equipped for medium and large mill;
8The control and protection system is controlled by PLC.

1.Main Technical Parameters of Wet  Grate Ball Mill:

 

Model	Cylinder diameter	Cylinder length	Effective volume	Rotate speed	Max. ball loading capacity	Motor		Size   (L×W×H)	Weight
						motor	speed
	mm	mm	m3	r/min	t	kw	r/min	m	t
MQY15×30	1500	3000	5	26.6	9	95	742	7.4×3.4×2.8	18.5
MQY15×36	1500	3600	5.7	26.6	10.6	95	742	8.0×3.4×2.8	17.22
MQY18×61	1830	6100	13.4	24.5	24.6	220	736	10.2×5.1×4.0	37.3
MQY21×30	2100	3000	9.4	22.1	15	200	740	8.5×4.65×3	45
MQY24×30	2400	3000	12.2	21	22.5	250	980	8.8×4.7×4.4	55
MQY24×70	2400	7000	26.66	21	48	475	740	14.3×5.8×4.4	67
MQY27×36	2700	3600	18.5	20.5	39	400	187.5	9.8×5.8×4.7	61.34
MQY27×40	2700	4000	20.5	20.24	38	400	187.5	10.4×5.8×4.7	70
MQY27×45	2700	4500	23.5	20.5	43.5	500	187.5	12.5×5.8×4.7	76
MQY27×60	2700	6000	34.34	19.5	53	630	589	13.5×5.9×4.7	71.2
MQY28×54	2800	5400	30	19.5	55.2	630	167	13×5.83×4.7	97.8
MQY28×80	2800	8000	43	20	78.6	800	137	16.5×7.3×5	115
MQY30×11	3000	11000	69.2	17.3	100	1250	429	28.9×3.8×5	227.8
MQY32×36	3200	3600	26.3	18.3	48.4	500	167	14.3×7.3×6	116.94
MQY32×40	3200	4000	29.2	18.2	60	560	980	16.7×7.3×6	121.4
MQY32×45	3200	4500	32.9	18.3	60.5	630	167	13×7.0×5.82	124.23
MQY32×54	3200	5400	39.4	18.3	73	800	167	14.2×7.0×5.82	129
MQY32×64	3200	6400	46.75	18.3	86	1000	167	15.2×7.0×5.8	140
MQY32×75	3200	7500	55.5	18.3	102	1250	743	17.7×8.4×6.3	154
MQY32×90	3200	9000	64.2	18.3	106.6	1250	150	18.5.7.3×6	173
MQY34×45	3400	4500	37	18.4	74.6	800	167	11.5×7×6.1	129.8
MQY34×56	3400	5600	45.8	17.9	84.3	1120	985	16.7×7.6×6.3
MQY36×45	3600	4500	41.4	17.25	76	1000	167	13×7.3×6.3	144.1
MQY36×50	3600	5000	46.7	17.5	85.96	1250	167	15×7.6×6.2	150
MQY36×50	3600	5000	46.7	17.3	85.96	1250	429	23×4.6×6.3	176
MQY36×56	3600	5600	55.4	17.76	106.3	1250	750	14.4×8×6.3	159.7
MQY36×60	3600	6000	55.7	17.3	102.5	1250	429	24×4.6×6.3	138.73
MQY36×60	3600	6000	54	17.3	102	1250	167	15.6×8.3×6.3	162.7
MQY36×61	3600	6100	55.36	17.76	106.3	1200	980	15.8×8.5×6.2	164.1
MQY36×85	3600	8500	79	17.4	131	1800	743	20×8.2×7.1	251.89
MQY36×90	3600	9000	83.5	17.4	138	1800	743	28×4.6×5.6	286
MQY38×67	3800	6700	70	16.5	130	1400	743	19×8.2×7.1	185.2
MQY40×60	4000	6000	69.8	16.0	126	1500	200	17.4×9.5×7.6	203.5
MQY40×67	4000	6700	78	16.0	136.3	1600	200	15.6×9.6×7.3	206.2
MQY40×135	4000	13500	155	16	233	3300	200	23×10×4.9	343
MQY43×61	4270	6100	80	15.67	144	1750	200	14×10×7.7	215.3
MQY50×64	5030	6408	120	14.4	251	2600	200	14.6×11×9.1	318.5
MQY50×83	5030	8300	152.3	14.4	266	3300	200	22×10.5×9	402.6
MQY55×65	5500	6500	143.3	13.8	264	3400	200	18.5×9.8×8.9	451.5
MQY50×85	5500	8500	187.4	13.8	335	4500	200	20.5×12×9.8
MQY55×65	5500	6500	143.3	13.8	264		3400	200
MQY50×85	5500	8500	187.4	13.7	335		4500	200
MQY55×88	5500	8800	191.5	13.7
MQY60×95	6700	9500	249.3	13
MQY67×116	6700	11600	385	12.5
MQY73×115	7300	11500	495	12
MQY80×120	8000	12000	570.5	11.5