Description: PFG170-100 high-pressure roller press is a new type of cement energy-saving grinding equipment. Based on the material layer grinding technology, the grinding system is composed of roller press, breaking, grading, drying and powder selection. It can cooperate with the ball mill to form a variety of technological processes, such as pre grinding, mixed grinding, semi-final grinding and final grinding systems.
Due to the change of grinding principle, the power consumption of roller press and its grinding system technology is reduced by 50-100% and the output is increased by 100-300%; it is suitable for the transformation of grinding system in new or old plants. After extrusion, 0.08mm fine material accounts for 20-35% and less than 20mm accounts for 65-85%. The internal structure of small particles is filled with many tiny cracks due to extrusion, and the grinding ability is greatly improved.
Main Features
- Roll surface technology (welding materials, equipment and welding process) the roll surface adopts hot surfacing, and the maintenance of wear-resistant layer is more convenient. It can effectively reduce the generation and diffusion of microcracks in the welding process. The hardened layer has high hardness (> hrc58) and high toughness. The service life of the roll surface is more than 8000h, and the routine maintenance is simple.
- The hydraulic system of roller press is very reliable by using the aviation hydraulic technology.
- The hydraulic system of the roller press and the complete automatic control system can cooperate with each other to realize: the load control of the main drive motor of the roller press; the deviation control and automatic correction of the left and right clearance of the two rollers; the fault self diagnosis technology.
- The matching powder concentrator has the characteristics of low operation cost and high operation rate.
- The matching automatic control system adopts the fuzzy control principle, matching with the components of world-famous suppliers.
Design and configuration
The press roll of wear-resistant liner PFG has a layer of wear-resistant liner which has been overlaid. This wear-resistant liner can be used for overlaying the solid shaft or the hot press fit bushing. The worn surface can be restored by hardfacing. If necessary, the repair of the damaged point or the surfacing of the whole surface can be carried out without moving the roller.
In order to facilitate the formation of extrusion cake, HRP roller press has an electric feeding control door, which can make feeding start smoothly and help to adjust the output or energy consumption of roller press. When dealing with various types of materials, it is beneficial to set up the feeding control door, but it is necessary to form the material cake.
The roller press can be configured to form the grinding system in the following ways: as a pre grinding machine, the roller press can grind the new feed, and the ground material then enters the grinding circuit of the ball mill. As a semi final grinding equipment, PFG roller press operates in a closed circuit together with the disperser and the dynamic powder concentrator. Fine materials are finally ground in a single chamber ball mill.
In this configuration, PFG roller press can be arranged more compact and efficient by using two-stage powder concentrator and ball mill to work together. For some types of feed and some final products, PFG roller press can be used as the final grinding system without ball mill. PFG roller press and two-stage powder concentrator are operated in closed circuit. This configuration can make the operation and investment cost lower.
Technical
Type | PFG 200-180 | PFG 180-160 | PFG 180-120 | PFG 170-100 | PFG 160-140 | |||||||||
Roll diameter | Φ2000 | Φ1800 | Φ1800 | Φ1700 | Φ1600 | |||||||||
Roll width | 1800 | 1600 | 1200 | 1000 | 1400 | |||||||||
Linear speed of roll surface(M / s) | 1.83 | 1.74 | 1.75 | 1.47 | 1.47 | |||||||||
Normal working roll gap (mm) | 25-50 | 25-45 | 24-45 | 25-45 | 25-45 | |||||||||
Maximum feed size (mm) | 65 | 65 | 65 | 60 | 60 | |||||||||
Maximum feeding temperature (℃) | ≤130 | ≤130 | ≤130 | ≤130 | ≤130 | |||||||||
Pre-grinding ability | clinker（t/h） | 1000-1250 | 920-1120 | 650-750 | 480-620 | 600-720 | ||||||||
Raw material（t/h） | 1050-1280 | 920-1150 | 700-820 | 500-650 | 650-760 | |||||||||
Main motor | type | YRKK7104-4 | YR6302-4 | YR560-4 | YR5004-4 | YRKK630-6 | ||||||||
power (kw) | 2000×2 | 1600×2 | 1250×2 | 900×2 | 1120×2 | |||||||||
Rotation speed(r/min) | 1000 | 1490 | 1480 | 1485 | 993 | |||||||||
voltage（v） | ~10000 | ~10000 | ~10000 | ~10000 | ~10000 | |||||||||
Type of main reducer | GYM23PZN | GYM2292N | GYM18PZN | RPG29 | GYM18P2N | |||||||||
Total weight(t) | 290 | 250 | 250 | 208 | 212 | |||||||||
Type | PFG 150-100 | PFG 140-120 | PFG 140-80 | PFG 140-70 | PFG 140-65 | PFG 120-60 | PFG 120-50 | |||||||
Roll diameter | Φ1500 | Φ1400 | Φ1400 | Φ1400 | Φ1400 | Φ1200 | Φ1200 | |||||||
Roll width | 1000 | 1200 | 850 | 700 | 650 | 600 | 500 | |||||||
Linear speed of roll surface(M / s) | 1.5 | 1.52 | 1.46 | 1.48 | 1.48 | 1.47 | 1.47 | |||||||
Normal working roll gap (mm) | 22-40 | 18-35 | 18-35 | 18-35 | 18-35 | 16-30 | 16-30 | |||||||
Maximum feed size (mm) | 60 | 60 | 60 | 60 | 60 | 55 | 55 | |||||||
Maximum feeding temperature (℃) | ≤130 | ≤130 | ≤130 | ≤130 | ≤130 | ≤130 | ≤130 | |||||||
Pre-grinding ability | clinker（t/h） | 460-500 | 460-530 | 300-350 | 240-334 | 240-300 | 110-165 | 115-170 | ||||||
Raw material（t/h） | 480-520 | 485-550 | 320-390 | 280-360 | 260-320 | 175-220 | 130-195 | |||||||
Main motor | type | YR5002-4 | YR500-4 | YR560-6 | YR5001-8 | YR5001-8 | Y355L-6 | Y315L-6 | ||||||
power (kw) | 710×2 | 800×2 | 560×2 | 500×2 | 500×2 | 280×2 | 250×2 | |||||||
Rotation speed(r/min) | 1485 | 1485 | 1485 | 740 | 740 | 960 | 960 | |||||||
voltage（v） | ~10000 | ~10000 | ~10000 | ~600 | ~600 | ~380 | ~380 | |||||||
Type of main reducer | RPG26 | RPG28 | PRG23 | XGL48 | XGL48 | XGM38 | XGL38 | |||||||
Total weight(t) | 178 | 176 | 125 | 120 | 115 | 68 | 64 | |||||||