Pilot scale of high pressure grinding rolls is a new product developed and produced by ZJH minerals. The roller diameter is 250mm, and the roller width is 100mm. In the mining industry, if we want to crush some ore by high pressure grinding rolls, but we are not sure the crushing effect. In this case, we could adopt this Pilot scale of high pressure grinding rolls to do trial. By this research work, it will guide the invest of the industrial scale of HPGRS. So it will reduce the invest risk.
It is also adopted by some university or mineral processing institue to learn the ore or other material crushing character by high pressure grinding rolls.
Technical Specification:
1. Roller Diameter: 250mm;
2. Roller Width: 100mm;
3. Passing capacity: 0.8 ~ 1.2t/h;
4. Raw material conditions:
Maximum feeding size: F95:7mm, Fmax: 10mm
Combined moisture: 0.5%
Roller speed: 23rpm
Extrusion roll force: 160kN
Driving power: 2×4kW;
5. Main Frame
Material: Q235-A
Flaw detection: ultrasonic;
6. Roller shaft
Structure form: shaft + sleeve
Material :42CrMoA+ stud
Shaft heat treatment: tempering treatment
Shaft hardness: 235±20HV
Flaw detection: ultrasonic;
7. Roller surface: pin roller surface;
8. Bearing
Original and original
Lubrication method: grease lubrication;
9. Bearing seat
Material: Q235-A
Bearing temperature measuring element: thermal resistance Pt100;
10. Main transmission device
Gear motor: original original
Rated power: 2×4kW
Voltage :380V
Speed: 1480rpm
Rotation: one clockwise rotation, one counterclockwise rotation
Nominal speed ratio :63;
11. Hydraulic system
Rated working pressure :160bar
Cylinder size: 80mm
Number of cylinders: 2;
12. Dry oil lubrication: manual lubrication.
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