Vrpm-Questionnaire for Cement Mill

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-

1. Client

a) Company:

b) Name:

c) Address:

d) Tel. No.:

e) Fax. No.:

f) Email ID:

1. Plant Data:

1. Site Data

a) Altitude of Plant size :

b) Meteorological conditions:

1. Temperature:
2. Relative Humidity:
3. Rain fall:

1. 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

1. 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: ______%______%

1. 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 : ______% ______%

1. 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

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