Product Made in Japan

Manufacturer: KURIMOTO

The Ball Mill is designed to grind materials by turning the cylindrical shell with grinding medium (e.g. steel balls, cylpeb, and pebbles) put in the shell, and has a simple structure and ease of handling. Furthermore, The Ball Mill of a large capacity has been available to a very extensive range of applications in both dry and wet processing

Features

Overflow Type
The overflow type of Ball Mill is designed to overflow and discharge materials from the trunnion on the outlet side. By combining it with a mechanical classifier or wet-processing cyclone, you are able to extensively use this type for grinding in closed circuit or for special applications such as re-grinding in open circuit. Generally, it is best suited to fine-grind materials up to the particle sizes ranging from 150 to 200 mesh.

Grate-discharge Type
The grate-discharge type of Ball Mill has a grate at the outlet of the shell and causes less excessive grinding, compared to the overflow type. Therefore, generally, it is best suited to grind materials up to the particle sizes ranging from 60 to 100 mesh.

Compartment type
The compartment type of Ball Mill has a longer shell, inside of which is comparted into 2 to 3 chambers with grates and is best suited to produce products grinding from coarse particles of some 25 mm to fine particles of some 200 mesh.

Other batch types of Ball Mill are best suited to produce ultra fine particles in particular.

Typical Flow Sheet

Construction

Overflow Type

1) Shell 2) Trunnion 3) Trunnion cylindrical liner on inlet side 4) Trunnion cylindrical liner on outlet side 5) Trunnion bearing 6) Drum gear 7) Liner 8) Gear case 9) Combination feeder

Grate-discharge Type

1) Shell 2) Trunnion 3) Trunnion cylindrical liner on inlet side 4) Trunnion cylindrical liner on outlet side 5) Trunnion bearing 6) Drum gear 7) Liner 8) Gear case 9) Combination feeder 10) Grate

Compartment Type

1) Shell 2) Trunnion 3) Trunnion cylindrical liner on inlet side 4) Trunnion cylindrical liner on outlet side 5) Trunnion bearing 6) Drum gear 7) Liner 8) Gear case 9) Drum feeder 10) Trommel screen

Specifications

Size	Inside dia. Length of shell (mm)	Ball charging amount (tons)	Mill revolution (min-1)	Power consumption (kW)	Motor output (kW)	Capacity (t/h)
						A	B
1212 1515	1200×1200 1500×1500	2.05 4.15	32.0 29.0	16.5 35.8	18.5 37	1.5 3.5	1.3 3.1
1818 2121	1800×1800 2100×2100	7.4 11.7	25.3 23.0	65.3 106	75 110	6.6 11.0	5.8 9.6
2424 2430	2400×2400 2400×3000	17.6 22.0	21.4 21.4	167 209	190 220	18.0 22.4	15.8 19.6
2727 2733	2700×2700 2700×3300	25.4 31.0	20.1 20.1	250 306	260 340	27.5 33.7	24.1 29.6
3030 3036	3000×3000 3000×3600	35.0 42.0	18.8 18.8	350 420	375 450	39.5 47.3	34.6 41.5
3236 3242	3200×3600 3200×4200	48.0 56.0	18.0 18.0	484 565	510 600	55.5 65.0	48.7 57.0
3442 3648	3400×4200 3600×4800	63.5 81.5	17.5 16.6	655 845	700 900	75.5 99.0	66.0 86.0
3848 4051	3800×4800 4000×5100	91.5 108.0	16.2 15.8	960 1160	1000 1200	113.0 139.0	99.0 122.0

Note)

Capacities listed in the above table are based on tests with ores of Wi-13KWH/MT with wet processing in closed circuit.
A : Capacities are based on tests with grinding material of 80% and 10 mm in pass particle size to produce products of 80% and 200mm (approximately 65 mesh).
B : Capacities are based on tests with grinding material of 80% and 0.8 mm in pass particle size to produce products of 80% and 74mm (approximately 200 mesh).
However, the raw material particle size shows new feed rate to the mill, the product particle size shows overflow rate from classifier, and the processing capacity shows new feed rate (i.e., overflow rate from classifier).

Applications

Mining Industry : Used to grind various kinds of ores.

Ceramic Industry : Used to finish and grind various kinds of raw materials and cement.

Smelting Industry : Used to grind various kinds of slag.

Power generation : Used to grind coal for combustion use.

Chemical Industry : Used to grind coke, ilmenite, and others