CLUM calcium carbonate ultrafine vertical roller mill

Product Profile

CLUM Calcium Carbonate Ultrafine Vertical Roller Mill is the specialized ultrafine grinding equipment for non-metallic ores. It suits for grinding non-flammable, non-explosive brittle materials with Moh’s hardness below 6 such as limestone, calcite, marble, talc, barite, brucite, wollastonite, pyrophyllite, dolomite, kaolin, lime, saponite, etc.

The mill takes Automatic Central Control System, widely used in paper-making, plastic, rubber, artificial stone, painting and coating industries. It is the specialized equipment for producing filler of large-scale paper-making plants and calcium carbonate for coating, and processing other large-scale ultrafine powder.

 

Working Principle

Motor makes grinding revolve under action of reduction gear. Materials, after being measured by belt scale, are sent to center of grinding disc by feeding screw. Because of centrifugal force, the materials would move towards the fringe of disc and then enter the grinding zone between grinding roller and disc to be ground. The materials which have been ground would keep moving toward fringe of grinding disc until they spill out of the disc. Through air inducing ring on the fringe of grinding disc, airflow sends these spilling materials to powder concentrator for classifying powders. The coarse powders which don’t meet the requirement of fineness would fall to the disc for another grinding while these qualified powders, as finished products, would be collected into dust collector and finally sent to finished product silo by conveying system for storage and packaging.

 

Technological Process

1. Each Parts of Ultrafine Vertical Mill

A. Main Machine

B. Motor

C. Gear Motor

D. Grinding Roller

E. Pressure Device of Hydraulic Cylinder

F. Powder Concentrator

G. Hydraulic Station & Lubrication Station

 

2. Production Process

A. Crushing system: raw material silo; feeder; jaw crusher; belt conveyor; de-ironing separator; hammer crusher; elevator; dust collector; surge bin.

B. Grinding system：quantitative belt scale；elevator; spiral conveyor; de-ironing separator; ultrafine vertical mill; pulse dust collector; fan; air door.

C. Conveying system: elevator or pneumatic conveyor.

D. Auxiliary system: agent adding system; compressed air system; water cooling system.

 

Technical Parameter

Main configuration and production
Item Model	CLUM1425	CLUM1632	CLUM1736
Working Diameters（mm）	1400	1600	1700
Number of rollers（pieces）	3	3	3
Number of classifier（pieces）	5	7	7
Power of classifier（Kw）	5X15	7X15	7X（15～18.5）
Main unit power （Kw）	250	315	355
Blower power（Kw）	200	250	315
Feed size （mm）	＜10mm	＜10mm	＜10mm
Moisture of feeding material	＜3%	＜3%	＜3%
Less than 2μm=34%   output（t/h）	11-14	13-17	15-19
Less than 2μm=46%   output（t/h）	7-8	9-10	11-12
Less than 2μm=60%  output（t/h）	3-4	/	/
Material: based on calcite Particle size distribution: measured by micro laser diffraction particle size analyzer in British Malvern3000 instruments

CLUM1425 Technical parameter

(t/h)Output Item	11.0-14.0	8.0-10.0	7.0-8.0	5.0-6.0	3.0-4.0
specific surface area(cm²/g)	11000±500	13500±500	15000±500	17000±500	19000±500
325mesh remaining amount (%)	0.015	0.015	0.01	0	0
less than 2μm powder content (%)	34	38	46	53	60
Median particle diameter D50 (um)	4.2	3.0	2.4	1.8	1.4
General name(mesh)	600	800	1250	2000	2500
Particle size distribution D97 (um)	30	25	20	15	9
Particle size cut point D100 (um)	80	48	38	28	18
Moisture content (%)	<0.3%	<0.3%	<0.3%	<0.3%	<0.3%
Energy consumption (KW/T)	38-40	40-50	47-53	50-53	110-125

LUM1632 Technical parameter

(t/h)Output Item	13.0-17.0	11-13	9.0-10.0	7.0-8.0
specific surface area(cm²/g)	11000±500	13500±500	15000±500	17000±500
325mesh remaining amount (%)	0.015	0.015	0.01	0
less than 2μm powder content (%)	34	38	46	53
Median particle diameter D50 (um)	4.2	3.0	2.4	1.8
General name(mesh)	600	800	1250	2000
Particle size distribution D97 (um)	30	25	20	15
Particle size cut point D100 (um)	80	48	38	28
Moisture content (%)	<0.3%	<0.3%	<0.3%	<0.3%
Energy consumption (KW/T)	38-40	40-50	47-53	50-53

CLUM1736 Technical parameter

(t/h)Output Item	11.0-14.0	12.5-14.5	10.0-11.0
specific surface area(cm²/g)	11000±500	13500±500	15000±500
325mesh remaining amount (%)	0.015	0.015	0.01
less than 2μm powder content (%)	34	38	46
Median particle diameter D50 (um)	4.2	3.0	2.4
General name(mesh)	600	800	1250
Particle size distribution D97 (um)	30	25	20
Particle size cut point D100 (um)	80	48	38
Moisture content (%)	<0.3%	<0.3%	<0.3%
Energy consumption (KW/T)	38-40	40-50	47-53