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SPCC will have the first Vertical Roller Mills for Cement Grinding in the Kingdom of Saudi of Saudi Arabia LOESCHE Symposium Düsseldorf, Germany 25. September 2014
Agenda
Southern New
Province Cement Co.– Overview
Line for Bisha Works
Reasons Short
for SPCC to decide in favour of Vertical Roller Mills
Conclusion
Southern Province Cement Co. ‐ Overview
Bisha Tahamah
Southern Province Cement Co. ‐ Overview
Jazan Plant (7,550 tpd): Bisha Plant (future 9,000 tpd): 1 x LOESCHE Mill Type LM 43.4 (Build by others under License) 1 x LOESCHE Mill Type LM 56.4 under erection 2 x LOESCHE Mill Type LM 56.3+3 under erection
Tahamah Plant (future 15,000 tpd): 2 x LOESCHE Mill Type LM 56.4 in operation
New Line for Bisha Works LOESCHE Cement Raw Material Mill Specification
LOESCHE Mill Specification: Mill Type:
LM 56.4
Design Capacity:
400 tph
Table Ø:
5,6 m
Grinding Rollers:
4
Support Rollers:
none
Drive power:
4,000 kW
New Line for Bisha Works LOESCHE Cement Mill Specification LOESCHE Mill Specification: Mill Type:
2 x LM 56.3+3
Design Capacity:
200 tph
Table Ø:
5,6 m
Grinding Rollers:
3
Support Rollers:
3
Drive power:
5,600 kW
First Vertical Roller Mills for Cement Grinding in KSA!
Reasons for SPCC to decide in favour of VRM LOESCHE Vertical Roller Mill Reasons of SPCC to decide in such a modern and state of the art way
SPCC wanted to be ready for a changing market
Saudi authorities had put bench mark for energy consumption in cement industry target to be achieved by 2018
VRM for raw material and cement grinding will play big role in this achievement
Excellent performance of all existing LOESCHE vertical roller mills for CRM grinding in operation at SPCC’s Works
Reasons for SPCC to decide in favour of VRM Design Highlights
LOESCHE Vertical Roller Mill:
Flat grinding table
Tapered rollers
Rollers fixed individually in rocker arms without intermediate frame
Hydro-pneumatic loading of rollers
Hydraulic swing-out-device for easy replacement of wear parts
Modular Design Concept
Low masses, low vibration level
Newly developed Classifier Type LDC
Reasons for SPCC to decide in favour of VRM Flexibility of Modular Concept LOESCHE Mills can be designed with identical modules for 2, 3, 4 and 6 Roller Mills with Grinding Table Ø of up to 7,5 m.
(Capacity range from 80 tph to 1,400 tph)
6 Types of Modules only!
Reasons for SPCC to decide in favour of VRM Flexibility of modular concept … it also applies for LOESCHE Mills with the patented 2+2, 3+3, and 4+4 Design for Clinker and Slag Grinding with Grinding Table Ø of up to 7.5 m.
(Capacity range from 40 tph to 550 tph)
6 Types of Modules only!
Reasons for SPCC to decide in favour of VRM Same Spare Parts due to modular concept
Identical Spare Parts for the new CRM Mill at Bisha Works and the existing mills in Tahamah. Identical Spare parts for the new Cement Mill at Bisha Works and all Mills for CRM grinding. Gearbox exchangeability from Cement Mills to CRM Mills.
Reasons for SPCC to decide in favour of VRM LOESCHE cement mills worldwide LOESCHE cement mills worldwide
One mill for multiple products… (In percent of machines sold…)
Reasons for SPCC to decide in favour of VRM VRM produce required product qualities LOESCHE Mills produce required product qualities
It was said that Cements produced in a VRM System have a… Higher
Water Demand
Different Upset Ball Mill System
Setting Time
Compressive Strength Development Vertical Roller Mill System
Reasons for SPCC to decide in favour of VRM VRM produce required product qualities
Steeper Particle Size distribution?
Not True!
Different Particle Shape?
Not True!
Lower Gypsum Dehydration?
Partially correct, but simply adjustable! (Normal Optimisation!)
Reasons for SPCC to decide in favour of VRM Classifier efficiency
VORTEX Rectifier
Conventional design (LSKS)
New design ‐ LDC
Short Conclusion A New Era in Saudi Arabia LOESCHE has sold more than 300 Vertical Roller Mills for cement grinding
LOESCHE mills are highly flexible and energy efficient
LOESCHE mills ensure the production of Cements according to the market demands LOESCHE has sold the first 2 Vertical Roller Mills for Cement Grinding in the Kingdom of Saudi Arabia.
