Vertical Roller Mill High Grinding Efficiency / Vertical Raw Mill
Lower Energy Consumption
Introduction of Vertical Roller Mill
The vertical mill is mainly used for grinding raw meal, clinker,
granular blast furnace slag, iron ore, limestone, coal powder, coke
powder, coal gangue, fly ash, volcanic ash, gypsum, calcite,
pyrophyllite, quartz, clay, sandstone, bauxite, silica fume,
calcined rice shell and other processing industry related to metal
and non-metal mine.
Vertical Grinding Mill Advantages:
ZK Corp is able to provide technical proposal and equipment for the
whole mineral powder production line.
1. ZKRM series vertical slag mill is developed with the features of
high efficiency, energy-saving and environmental protection which
is achieved after exchanging ideas with senior experts from home
and abroad and making improvements based on same sector experience
in the past years.
2. ZK technical center can help our client to finish feasibility
study, environment impact assessment and safety assessment and also
provides turnkey service with high efficiency.
3. ZK has its own various processing equipment and takes strict
control measures on product quality, which results in fast delivery
within a short time. Besides, ZK can guarantee completion and
operation as scheduled with its strong service team for
installation and after–sales service.
4. High grinding efficiency and lower energy consumption; The
technical process is simple and material grinding, drying and
separate can be achieved at the same time. Small floor space,
compact layout, system equipment with light weight and low
investment for civil construction.
Description of other Electrical Control Components for Vertical
Mill:
1. Vertical mill vibration sensor control:
a. Vibration amplitude: 4 mm/s, 6 seconds delay alarm;
b. Vibration amplitude: 6 mm/s, emergency shutdown with 6 seconds
delay.
2. The pressure difference of the mill is interlocked with the
opening of the inlet air valve of the fan:
a. When the vertical mill pressure difference changes by 100Pa, the
opening of the air valve at the fan inlet changes proportionally by
a%, and the value of a is actually measured.
b. Pressure difference ≧ 7000Pa (reference value) Stop material
Pressure difference ≦ 6500Pa (reference value) Feed material
Parameter of Cement Vertical Mill:
| Model | Grinding plate(mm) | output(t/h) | output(×10kt/a) | Main motor power(kW) |
| diameter | Pitch | blast furnace slag | cement | Raw meal | blast furnace slag | cement | Raw meal |
| ZKRM08.2 | 1200 | 800 | 1.5~2 | 3~4 | 6~8 | 1.5 | 3 | 5.5 | 55 |
| ZKRM11.2 | 1500 | 1100 | 3~4 | 5~6 | 10~12 | 3 | 4.5 | 9 | 110 |
| ZKRM13.2 | 1700 | 1300 | 8~9 | 11~13 | 20~22 | 6 | 9.5 | 17 | 185 |
| ZKRM15.2 | 1900 | 1500 | 9~10 | 14~16 | 26~34 | 8 | 12 | 24 | 250 |
| ZKRM17.2 | 2100 | 1700 | 12~14 | 20~23 | 40~50 | 10 | 17 | 36 | 355 |
| ZKRM19.2 | 2300 | 1900 | 15~17 | 24~26 | 50~60 | 13 | 20 | 43.5 | 450 |
| ZKRM20.2 | 2400 | 2000 | 18~20 | 27~30 | 60~75 | 15 | 22.5 | 55 | 560 |
| ZKRM22.3 | 2600 | 2200 | 23~25 | 40~50 | 85~110 | 20 | 35.5 | 77 | 710 |
Remarks: the basic standard for vertical mill is as follow:
(1)Power consumption:slag≤25kWh/t,cement≤18kWh/t,raw meal≤9kWh/t；
(2)Moisture content:slag≤15%,cement≤3%,raw meal≤7%；
(3)Ffinished product fineness: specific surface area of slag
4200~4500cm²/g,specific surface area of cement 3300~380 cm²/g,raw
meal fineness-80μmR 12~15%；
(4)Moisture content of refined powder:slag 0.5~1.0%,cement
0.5~1.0%,raw meal 0.5~1.0%；
(5)The specific installed capacity and parameters can be adjusted
properly according to actual material nature.
(6)The above parameters are applicable for granular blast furnace
slag, cement and raw meal and the model selection is determined by
material property.
