LG990 ring milling superfine grinding mill (Three rolls)

1. Mine Mill with ISO9001:2008 approved 2.Particle size form 600~1500 mesh 3.Patent no: ZL2011201414398 4.1~2.5t/h

Advantage of LG990 ring milling superfine grinding mill (Three rolls)

1, grinding unique way: the grinding rolls are hung in grinding ring parallelly , milling roller and grinding ring have 6-8mm clearance, grinding roll and grinding ring,do not contact directly . The grinding ring driven by material rotates the grinding roll, and the grinding roll by two spring high-pressure pre-tightening force makes the material crushing and grinding.

2, because the grinding roll and grinding ring do not directly contact , the content of iron in material is low, and not to drop white degrees.

3, stronger grinding force: grinding force of grinding roll generates from both root of preloaded force high-pressure spring (about 4000kg) .the force is three times of 4R3216 raymond mill’s grinding force.

4. bigger grinding surface.

5. finished granularity: the finished granularity reaches 1500 mesh.

6. high output, low energy consumption: the output of 1250 mesh calcium carbonate is as much as 1.2 ton/hour.

Main technical parameters: (Three rolls) of LG990 ring milling superfine grinding mill (Three rolls)

Maximum feeding size	Finished granularity	output (According to different materials fineness)	Center shaft speed	Grinding ring inside diameter	Roll grinding size (diameterXheight)	Total weight	Host motor power	Total power
10 mm	600~1500 mesh	1000~2500 kg/h	120 r/min	φ960 mm	φ320X160mm	14 t	37 KW	94.7 KW

Working Principles of LG990 ring milling superfine grinding mill (Three rolls)

Firstly, raw material is crushed by jaw crusher to the size required, and then the crushed materials are elevated into a hopper from which the material is transported through the electro-magnetic vibrating feeder evenly and continuously into the grinding chamber for powder-processing. The rollers oscillate outward to press the ring because of the centrifugal force and the shovel scoops up the materials, send to the middle between ring and roller to accomplish the grind. After this, the ground stuff is carried by the air from the blower into the separator for screening. The fine powers are blow into the cyclone collector and are poured out through the output-powder valve as the final products and the rough stuff after the screening will be recycled back into the grinding chamber for regrinding. The airflow system is closely sealed up and circulated under condition of negative and positive pressure.

Production Process of  LG990 ring milling superfine grinding mill (Three rolls) Users' Picture of LG990 ring milling superfine grinding mill (Three rolls) ISO9001:2008Certificate of  LG990 ring milling superfine grinding mill (Three rolls) Main technical parameters of Grinding Mill

LG990 ring milling superfine grinding mill (Three rolls)