LYHM Ultra-fine Ring Roller Mill is especially designed to process ultra-fine powder. It has been widely used to process non-metal minerals with Moh's hardness below 7 and moisture below 6%, such as talc, calcite, calcium carbonate, dolomite, bentonite, kaolin, graphite, carbon black, etc.
Working Principle
Ring roller mills crush materials by impact, extrusion and grinding. There is plenty of moving clearance between the grinding roller mounted on the turntable and the axis pin. When the turntable revolves round the main shaft, the grinding roller will be stretched out to the grinding ring by centrifugal force, and press the grinding ring inner wall and rotate round the axis pin. Through the clearance between the grinding roller and the grinding ring, the material will be crushed by the impact, extrusion and grinding of the grinding roller. The material is ground by the first layer of the grinding roller and grinding ring, falls into the second layer and is ground again as per the same principle. After the material is ground by the grinding roller in the last layer, it will fall onto the turntable under gravity and stretched out to the lowermost milling equipment, and brought to the interlayer between the inner and outer walls of the cylinder by negative pressure airstream, and once again rise to the top air classification system for separation. Qualified fine powder will pass through the classifier and enter into the pulse dust collector; coarse materials will be directly knocked to the grinding table and resettle in the pulverizing room for pulverization. The turntable is distributed in multiple layers. Thus, the material is sufficiently crushed to reach the desired fineness.
Application
LYHM Ultra-fine Ring roller Mill is widely used to process non-metallic minerals with Moh’s hardness below 7 and moisture below 6%, such as talc, calcite, calcium carbonate, dolomite, bentonite, kaolin, graphite, carbon black etc. The fineness can be adjusted from 0.045 mm (325 mesh) to 0.005mm (2500 mesh), whose range is much wider than that of traditional Raymond Mill.
Structure
LYHM Ultra-fine Grinding Mill consists of main mill, classifier, air blower, belt feeder, storage hopper, pipe system, impulse dust collector and electric control cabinet.
Main Technology Parameters
|
Model |
Max Feeding Size (mm) |
Fineness (um) |
Capacity (t/h) |
Weight (t) |
Total Power (kw) |
|
LYHM930 |
≤10 |
8-23 |
2.5-6 |
13 |
250 |
|
LYHM930C |
≤10 |
16-45 |
3.5-10 |
13 |
278 |
|
LYHM930X |
≤10 |
5.2-8 |
1.3-2.8 |
13 |
228 |
|
LYHM1100 |
≤10 |
5.2-23 |
1.8-9 |
25 |
372 |
|
LYHM1100C |
≤10 |
16-40 |
8-14 |
25 |
380 |
|
LYHM1100X |
≤10 |
3.2-8 |
1-3.5 |
25 |
373 |
Note: The capacity is for calcite powder (Feeding Size≤10mm), and specification is just a reference.
Technical Advantages and Features
Product’s fineness is adjustable. Product’s quality is stable.
Classifiers are inbuilt. The accuracy of classifying is higher.
The brand-new design of main unit transmission system promises high output, low energy consumption and easy maintenance.
All main wearing parts are made of high-quality wear-resisting alloy materials, which prolong the life span of wearing parts.
The whole set of system is fully sealed and operates with negative pressure. Besides, it is equipped with pulse dust collector, so the exhaust emission completely meets related national standards.
Touch-screen PLC control system is used, which can both real-time monitor the temperature, pressure, electric current and wind speed of various parts and make the operation more convenient, intuitive, thus reducing the disadvantages of merely relying on operators’ experience in the past, and reducing the high defect rate.
The whole system is compact and requires limited space, which significantly reduces the construction cost.
shipping