VRPM-QUESTIONNAIRE FOR CEMENT MILLBASIC 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 www.amcl.in

PROJECT NAME : CEMENT MILL No-

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A. Client

a) Company :

b) Name :

c) Address :

d) Tel. No. :

e) Fax. No. :

f) Email ID :

B. Plant Data:

1. Site Data

a) Altitude of Plant size :

b) Meteorological conditions :

i. Temperature :

ii. Relative Humidity :

iii. Rain fall :

2. Mill Capacity:

a) Original Mill capacity in OPC :

b) Original Mill capacity in PPC :

c) Present Mill Capacity in OPC :

d) Present Mill capacity in 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

3. Existing Product Quality

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a) Product Name : OPC PPC

b) Blaine (cm2/gm) : ______ ______

c) Residue on 212 Micron : ______ % ______ %

d) Residues on 90 micron : ______ % ______ %

e) Residue on 45 micron : ______ % ______ %

4. Required Product Quality

a) Product Name : OPC PPC

b) Blaine (cm2/gm) : ______ ______

c) Residue on 212 Micron : ______ % ______ %

d) Residues on 90 micron : ______ % ______ %

e) Residue on 45 micron : ______ % ______ %

5. 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 ______

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(-) 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 %)

5003502129045

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

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m)Grinding ball 2nd compartment :

mm-Dia : ton

mm-Dia : ton

mm-Dia : ton

n) Gas balance Ball 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/hProduct Capacity : t/hExit Volume : m3/hrRotor Dia X Height : m x mMotor : kW & pole

9 . Separator/Circulating Fan

Model/Make : _________Type : _________Flow : m3/hrStatic Pressure : mm WgTemperature : Deg CMotor : KW & pole

10 . Bag Filter for Separator

Model/Make : Type :Quantity of dust laden Gas : Cu m/hrOperating Temperature : deg. c

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Dust Concentration : gm/Cu MBag filter Fan Detail : Flow : M3/hrStatic 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

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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 :

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HNGIL GROUP OF COMPOANIES.

AMCL MACHINERY LTD. PLOT NO A-1/1, MIDC Industrial Area, BUTIBORI,

DIST-NAGPUR-441122

www.amcl.in