The document is a technical report from Nasice Cement Plant Croatia Inc Ceprocim S.A. measuring process parameters at the plant. It identifies some "bottle necks" or problems in the process flow, including high moisture in quarry material, high residue after crushing, high running time of drum dryer, high raw mill fineness, high clinker cooler outlet temperature but low secondary air temperature, high clinker residue after cooler, low cement mill charge, and usually high cement Blaine surface. These issues influence the performance of the plant's departments.

1. NASICE CEMENT PLANT CROATIA INC CEPROCIM S.A.
Contract 02-20/2000
MEASUREMENTS OF THE PROCESS PARAMETERS
FINAL TECHNICAL REPORT
2. IDENTIFYING OF THE MAIN “ BOTTLE NECKS” OF THE
PROCESS FLOW
The production, the energy consumption and the quality of the cement
which are obtained by the Nasice Cement Plant during the test, and during
the last years show that the management for the all departments is very good.
Item Group
denomination
Energy
consumption
Heat
consumption
Remarks
kwh/tcem kcal/kgcl
2.00 Marly-lis crushing 1.3 0 Selective
exploitation of
the quarry
4.00 Loess crushing
and transport
0.2 0 Selective
exploitation
of the quarry
5.00 Raw materials
transport and
preblending
0.6 0
6.00 Raw materials
drying and
transport
3.4 158
7.00 Raw materials
drying and grinding
27.4 0
8.00 Raw meal blending
and storage
3.2 0
10.00 Clinker burning 19.1 815
11.00 Clinker storage
and transport
1.3 0
12.00 Gypsum and
additives storage
0.5 0
13.00 Tuff drying 0.5 ~34
14.00 Cement grinding 50.0 0
15.00 Cement silo and
bulk dispatch by
trucks
0.5 0
16.00 Cement packing
and dispatch by
trucks
0.5 0
Total 108.7 1,007
Date April 2000 Page 1 of 2
Revision: 0

2. NASICE CEMENT PLANT CROATIA INC CEPROCIM S.A.
Contract 02-20/2000
MEASUREMENTS OF THE PROCESS PARAMETERS
FINAL TECHNICAL REPORT
In the attached figures Raw mills specific energy consumption, Kilns
heat consumption and Cement mills specific energy consumption are shown
the actual desired level of consumption and the results of Nasice Cement
Plant.
The results showed that the figures obtained by the Nasice cement
plant are good.
However the following remarks may be done:
• The moisture of quarry material is very high
• The residue > 25 mm for marly – limestone after crusher is ~ 15 %
• The running time of drum dryer is higher
• The fineness of raw mill ~ 13 % R009 is higher
• The temperature of clinker output grate cooler is higher and the secondary
air temperature is relatively low
• The residue > 25 mm for clinker after grate cooler is ~ 17 %
• The charge of cement mill no. 2 is approx. 75 % by the normal charge
• The Blaine surface of cement is usually high
These problems influence the results of the different departments.
Date April 2000 Page 2 of 2
Revision: 0