VRPM-QUESTIONNAIRE FOR CEMENT MILL
BASIC QUESTIONNAIRE FOR FEASIBILITY OF PRE-GRINDING OF CEMENT MILL
HNGIL GROUP COMPANIES
AMCL MACHINERY LTD., PLOT NO. A-1/1, MIDC INDUSTRIAL AREA,
BUTIBORI, DIST-NAGPUR- 441122
PROJECT NAME : CEMENT MILL No-
- Client
a) Company:
b) Name:
c) Address:
d) Tel. No.:
e) Fax. No.:
f) Email ID:
- Plant Data:
- Site Data
a) Altitude of Plant size :
b) Meteorological conditions:
- Temperature:
- Relative Humidity:
- Rain fall:
- Mill Capacity:
a) Original Mill capacityin OPC:
b) Original Mill capacityin PPC:
c) Present Mill Capacity in OPC :
d) Present Mill capacityin PPC:
e) Required Mill capacity after installation
Of Vertical roller pre-grinding Mill in OPC: ______t/h
f) Required Mill capacity after installation
Of Vertical roller pre-grinding Mill in PPC: ______t/h
- Existing Product Quality
a) Product Name :OPCPPC
b) Blaine (cm2/gm): ______
c) Residue on 212 Micron: ______% ______%
d) Residues on 90 micron : ______%______%
e) Residue on 45 micron: ______%______%
- Required Product Quality
a) Product Name :OPCPPC
b) Blaine (cm2/gm): ______
c) Residue on 212 Micron: ______% ______%
d) Residues on 90 micron : ______%______% e) Residue on 45 micron : ______% ______%
- Characteristics of feed material
CLINKER GYPSUM FLYASH
a) Mixing Ratio % % %
b) Bulk Density–––––– t/m3–––––– t/m3–––––– t/m3
c) Moisture content______%______%______%
d) Temperature–––––– deg.C–––––– deg.C–––––– deg.C
e) Clinker Grindability (Bond's Work Index) ______KW -h/t
f) Clinker Feed Sieve Analysis
Particle size distribution% retained
(+) 40 mm______
(-) 40 mm to (+) 25 mm ______
(-) 25 mm to (+) 12 mm______
(-) 12 mm to (+) 10 mm______
(-) 10 mm to (+) 8 mm______
(-) 8 mm to (+) 6 mm______
(-) 6 mm to (+) 3 mm______
(-) 3 mm to (+) 2 mm______
(-) 2 mm to (+) 1 mm______
(-) 1 mm______
g) Ball Mill & Separator Sieve Analysis
Mesh Size (In Micron) / Ball Mill outlet (In % Retained) / Coarse Return to Mill From Separator ( In % Retained ) / Separator Fines (In Retained) / Circulating Load / Separator Efficiency (In %)500
350
212
90
45
6.Cement Mill
a) Shell diameter (ID): mm
b) Shell length: mm
c) Mill speed: rpm
d) Main drive motor: KW
e) Compartment: Nos
f) Lenght of 1st compartment: mm
g) Lenght of 2nd compartment: mm
h) Lenght of 3rd compartment: mm
i) Shell thickness: mm
j) Shell liner thickness: mm
k) Grinding ball 1st compartment: ton
: 30 %
l) Ball distribution of 1st component:
mm -Dia : ton
mm-Dia : ton
mm -Dia : ton
m) Grinding ball 2nd compartment:
mm-Dia : ton
mm-Dia: ton
mm-Dia: ton
n) Gas balanceBall mill outlet Nm3/min
Static Pressure mmWG
7. Mill Outlet BE :
Capacity: t/h
Center Distance: m
Motor: kW & pole
8. Dynamic Separator
Model/Make: ______
Type: ______
Feed Capacity: t/h
Product Capacity: t/h
Exit Volume: m3/hr
Rotor DiaX Height: m x m
Motor: kW & pole
9 . Separator/Circulating Fan
Model/Make : ______
Type: ______
Flow: m3/hr
Static Pressure: mm Wg
Temperature: Deg C
Motor: KW & pole
10 . Bag Filter for Separator
Model/Make:
Type:
Quantity of dust laden Gas: Cu m/hr
Operating Temperature: deg. c
Dust Concentration: gm/Cu M
Bag filter Fan Detail:
Flow: M3/hr
Static Pressure: mmWg
Motor : kW X RPM
11. Existing Mill circuit power :-
a) Rated Power Ball Mill: kW
Dynamic Separator: kW
Circulating Fan: kW
Bag Filter: kW
Bucket Elevator: kW
Conveying Equipment: kW
Auxilliary Equipment: kW
Total: kW
b) Power consumed
Ball Mill: kW
Dynamic Separator: kW
Circulating Fan: kW
Bag Filter: kW
Bucket Elevator: kW
Conveying Equipment: kW
Auxilliary Equipment: kW
c) Power Consumed per Ton
Ball Mill: kWh/t
Dynamic Separator: kWh/t
Circulating Fan: kWh/t
Bag Filter: kWh/t
Bucket Elevator: kWh/t
Conveying Equipment: kWh/t
Auxilliary Equipment: kWh/t
12. Information for Clinker Grinding System:
i. Mass Flow Diagram of Existing Clinker grinding system
ii. Process Flow Diagram of Existing Clinker Grinding System
13. Electrical supply details:
Frequency Hz/sec:
H.T. Voltage:
L.T. Voltage:
Control voltage:
HNGIL GROUP OF COMPOANIES.
AMCL MACHINERY LTD. PLOT NO A-1/1, MIDC Industrial Area, BUTIBORI,
DIST-NAGPUR-441122