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Vertical Cement Mill's
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Question
1. PLANT SITE AND KILN
Altitude, meter above sea level(M) :
Kiln capacity (t/d) :
No. of stage of SP :
Kiln exhaust gas temp. (°C) :
Type of cooler :
Kiln operation day per year (d/y) :
Use of hot gas for coal mill (SP/cooler) :
2. TYPE OF MILL
Name of original mill supplier :
Mill size :
Mill table diameter (mm) :
No. of rollers :
Roller diameter x width (m) :
Dam Ring Height :
3. YEAR OF INSTALLATION
YEAR OF INSTALLATION :
4. CAPACITY IN TPH
Kind of coal :
Hard Grove Index (HGI) :
Present production and fineness
(t/h(Dry)) :
(90µR%) :
Production guaranteed by supplier and fineness
(t/h(Dry)) :
(90µR%) :
Average production (last 12 months) and fineness
(t/h(Dry)) :
(90µR%) :
Max production (last 12 months) and fineness (after exchanging rollers to new one)
(t/h(Dry)) :
(90µR%) :
Min. production (last 12 months) and fineness (before exchanging worn-out rollers to new one)
(t/h(Dry)) :
(90µR%) :
5. MILL MOTOR DETAILS
Mill motor power installed (name plate) (kW) :
Actual mill motor power consumption (avg) (kW) :
6. CIRCULATING AIR FAN DETAILS
Fan motor power installed (name plate) (kW) :
Fan gas flow design (Am3/h) :
Fan pressure design (mbar) :
Actual fan motor power consumption (kW) :
Actual gas flow at fan inlet (Am3/h) :
Actual pressure at fan inlet (mbar) :
Fan speed variable (RPM) :
Speed Range (RPM) :
Circulated gas flow (Am3/h) :
7. FEED DETAILS
Size of Feed (mm) :
Moisture in Feed (Max. & Min) (%) :
8. OPERATION DATA
Mill Inlet Pressure (mbar) :
Mill Inlet gas temperature(°C) :
Maximum available inlet temperature (°C) :
Mill Outlet Pressure (mbar) :
Mill Outlet Temperature (°C) :
DP across mill (pressure mill outlet-inlet) (mbar) :
Residue of coal meal 90 micron (%) :
Residue of coal meal 45 microns (%) :
Average power consumption (kWh/t)
for mill :
for IDF :
for separator :
Annual Operation hours per day (h/d) :
Average working hours for roller segments (for exchange) for table liners (for exchange) (h) :
Wear rate of table segment (g/t) :
Wear rate of roller segment (g/t) :
Area of nozzle ring (m2) :
Water injection and location (t/h) :
Mill vibration (mm/sec) :
Revolution speed of separator (RPM) :
9. GRINDING PRESSURE
Mill operation grinding pressure (bar) :
Mill max allowed grinding pressure (bar) :
10. CLASSIFIER DETAILS
Type :
Installed motor power (name plate) (kW) :
Speed Range (RPM) :
11. CLASSIFIER GEARBOX DETAILS
Maker :
Size (kW) :
Gear Ratio :
Type :
Safety factor :
12. TYPE OF DEDUSTING EQUIPMENT
Cyclones before BF :
Yes
No
Bag Filter (filter bags area) (m2) :
E.P. :
Yes
No
13. PREFERRED BENEFIT (give priority from 1 to 5, 1 is highest priority)
Production increase
Residue improvement
Less vibration
14. ANY ADDITIONAL INFORMATION AND SPECIAL REQUIREMENTS
ANY ADDITIONAL INFORMATION AND SPECIAL REQUIREMENTS :
DRAWINGS REQUIRED
PROCESS FLOW SHEET
MILL GENERAL DRAWINGS
CLASSIFIER DRAWINGS
FAN CHARACTERISTIC CURVES
L.V. Techology Public Company Limited :
719 KPN Tower 9th and 24th Floor, Rama IX Road, Bangkapi, Huaykwang, Bangkok 10310 Thailand.
Tel :
(+66)2 7170835-40
Fax :
(+66)2 7170841
E-mail :
mkt@lv-technology.com
Website :
www.lv-technology.com