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المعهد الأمريكي للمهندسين الكيمياْْئين. American Institute of Chemical Engineers. فرع المملكةالعربيةالسعودية. Saudi Arabian Section. Chemical Engineering Process in Cement Production. Presented to: SAUDI ARABIAN SECTION OF AMERICAN INSTITUTE OF CHEMICAL ENGINEERS (SAS-AIChE)

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chemical engineering process in cement production

المعهد الأمريكي للمهندسين الكيمياْْئين

American Institute of Chemical Engineers

فرع المملكةالعربيةالسعودية

Saudi Arabian Section

Chemical Engineering Process in Cement Production

Presented to:

SAUDI ARABIAN SECTION OF AMERICAN

INSTITUTE OF CHEMICAL ENGINEERS (SAS-AIChE)

on Sunday, December 27, 2009

at Le Meridien Hotel, Al-Khobar

By:

Eastern Cement Team:

Eng. Ali S. Al-Qahtani

Eng. Sayd Basheer Shafee

Eng. Haridas Nair

who are we
Who Are we?

Our Head Office - Khobar

  • Our Plant is located at Khrsanih
  • Three production line of 3.5 mty cement
  • Joint Stock company listed in Tadawul
  • 700 employees
saudi cement industry
Saudi Cement Industry

Economic Contributions

why are we here
Why are we here?
  • Inform the Chemical Engineering Community about Cement Industry.
  • Attract Chemical Engineers to start and build carriers in Cement industry.
  • Attract Local Chemical Engineering Research in Cement Process.
our business

Glue ……..

for construction

Cement

Our Business

We Produce and Sell ……..

cement is
Cement is…..
  • HydraulicBinder

Solidify and gain compressive strength after mixing with water

  • It binds gravel and sand to form Artificial Rock Sold Material

Concrete

slide7

Limestone

There have been huge developments in the innovation and production of new binder materials in the last 10 years especially in the Epoxy chemicals.

Ancient construction Technologies

Cement & Concrete technologies

However

Non can compete with cement and concrete materials for practicality and economic feasibility of production and construction

cement production process

Material handling Systems

Material handling Systems

Pyroprocessing

(Chemical Reactions)

Raw Material

Grinding

Systems

Cement Production Process

Cement

Grinding

Systems

cement is very old material
Cement is Very Old Material….

Basic Research and inventions Time Line

Cement Standard by Wilhelm Michaelis

Invention of chemical Engineering process by Isaac Johnson

Invention of Portland Cement by Joseph Aspedin

Research by Louis Vicat on Hydraulic Binders

1875

1838

1812

1824

cement production technologies
Cement Production Technologies
  • Control and instrumentation
  • Gears and bearings
  • Cooling and heat transfer
  • Material handling systems
  • Cyclone and filters

Short Rotary Kilns and Preheater Technology

Long Rotary Kilns

Vertical Kilns

Rotary Kilns

1930’s

1830’s

1885

1970’s

2000’s

pyroprocessing system
PyroprocessingSystem

Preheater

Rotary Kiln

Cooler

preheater
Preheater
  • What is happning at the Preheater?
  • Raw material separation and suspension for heat absorption.
  • Moisture Removal
  • Decomposition of CaCO3, MgCO3, formation of CA,
  • C2F and C3S begins.
  • Formation of C12A7
rotary kiln
Rotary Kiln
  • Formation of C3A and C4AF begins, decomposition of
  • CaCO3 completed, free lime reaches maximum
  • Formation of C2S reaches maximum,
  • C3A and C4AF formation completed
  • Formation of liquid phase
  • Formation of C3S, gradual decrease of free lime content.
clinker
Clinker

MINERALOGICAL COMPOSITION OF CLINKER

  • Tricalcium silicate (C3S) or alite, dicalcium silicate (C2S) or belite, tricalcium aluminate (C3A) and tetracalcium aluminoferrite (C4AF) are the main clinker constituents
cooler
Cooler

Cooler

final chemical process
Final Chemical Process

Material handling Systems

Material handling Systems

Pyroprocessing

(Chemical Reactions)

Cement

Grinding

Systems

Raw Material

Grinding

Systems

Addition of Gypsum

CaSO4.2H2O

to control the setting time of cement

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