Quality assurance and process control in modern cement plants

1 Determination of CO2 content and LOI using the Eltra CW 800 analyser in the central laboratory at Ennigerloh Source/Quelle: HeidelbergCement AG // Steffen Fuchs
1 Determination of CO2 content and LOI using the Eltra CW 800 analyser in the central laboratory at Ennigerloh
Source/Quelle: HeidelbergCement AG // Steffen Fuchs
2 Determination of various chemical parameters using the Cadas 200 photometer in the wet-chemistry laboratory Source/Quelle: HeidelbergCement AG // Steffen Fuchs
2 Determination of various chemical parameters using the Cadas 200 photometer in the wet-chemistry laboratory
Source/Quelle: HeidelbergCement AG // Steffen Fuchs
3 Determination of setting times in a water bath using the Vicat needle apparatus in accordance with DIN EN 196-3 Source/Quelle: HeidelbergCement AG // Steffen Fuchs
3 Determination of setting times in a water bath using the Vicat needle apparatus in accordance with DIN EN 196-3
Source/Quelle: HeidelbergCement AG // Steffen Fuchs
4 The X-ray labo­ratory at the central laboratory in Enniger­loh Source/Quelle: HeidelbergCement AG // Steffen Fuchs
4 The X-ray labo­ratory at the central laboratory in Enniger­loh
Source/Quelle: HeidelbergCement AG // Steffen Fuchs
5 The laboratory automation system in the plant laboratory at Lengfurt consists of a pneumatic post terminal, a sample dividing system, two automatic pulverisers and a tablet press Source/Quelle: HeidelbergCement AG // Steffen Fuchs
5 The laboratory automation system in the plant laboratory at Lengfurt consists of a pneumatic post terminal, a sample dividing system, two automatic pulverisers and a tablet press
Source/Quelle: HeidelbergCement AG // Steffen Fuchs
6 C3S content in the clinker as a function of the lime saturation factor (net) Source/Quelle: HeidelbergCement AG
6 C3S content in the clinker as a function of the lime saturation factor (net)
Source/Quelle: HeidelbergCement AG
7 The Rietveld method indicates significantly lower C3A contents than the Bogue method Source/Quelle: HeidelbergCement AG
7 The Rietveld method indicates significantly lower C3A contents than the Bogue method
Source/Quelle: HeidelbergCement AG
8 The quality of the cement produced at the Paderborn, Geseke and Ennigerloh plants is continuously monitored in the physical laboratory. The laboratory equipment is optimally tailored to efficient laboratory work Source/Quelle: HeidelbergCement AG // Steffen Fuchs
8 The quality of the cement produced at the Paderborn, Geseke and Ennigerloh plants is continuously monitored in the physical laboratory. The laboratory equipment is optimally tailored to efficient laboratory work
Source/Quelle: HeidelbergCement AG // Steffen Fuchs
9 Not only the continuous physical and mechanical measurements (compressive and bending-strength tests), but also, in the case of special ­customer enquiries, polarisation micro-scopy, are applied in the central laboratory Source/Quelle: HeidelbergCement AG // Steffen Fuchs
9 Not only the continuous physical and mechanical measurements (compressive and bending-strength tests), but also, in the case of special ­customer enquiries, polarisation micro-scopy, are applied in the central laboratory
Source/Quelle: HeidelbergCement AG // Steffen Fuchs
Determination of the SO3 content of the ­cement using the Multi EA Source/Quelle: HeidelbergCement AG // Steffen Fuchs
Determination of the SO3 content of the ­cement using the Multi EA
Source/Quelle: HeidelbergCement AG // Steffen Fuchs

Modern analytical methods are meanwhile standard in the cement industry for use in quality and production control.

Assurance of quality and performance

Quality assurance and production monitoring in the ­cement industry has a long tradition, reaching back to the era of product standardisation in 1877/78. Then, as now, the applicable product standard specified the minimum scope of testing necessary to assure the conformity of the cements produced.

The functions of a modern plant laboratory are numerous and diverse, must be completed promptly, and exceed the scope of testing required by the applicable standards. In addition to the obviously necessary assurance of the conformity of the products to the relevant...

Find out more in

ZKG 04/2013

Find out more in

ZKG 04/2013

Ressort:  Process
subscription Content

TEXT Dr. Peter Boos, Head of Central Laboratory and Quality Management, Ennigerloh/Germany
Norbert Herrmann, Head of Laboratory and Quarry, Lengfurt/Germany
Rainer Scholz, Quality Management, Ennigerloh/Germany
HeidelbergCement AG

Related articles:

Issue 2019-5 DALMIA CEMENT RESEARCH CENTRE

1 Objective Variations in the chemical composition of raw mixes affect kiln operation, refractory line, fuel consumption, clinkerization and finally clinker quality. Clinker is formed through...

more
Issue 2011-7/8

Spasskzement has placed another order with ­Polysius, this time for a POLAB laboratory automation system. In future, sampling, analysis and control of kiln lines 1 and 2 will take place fully...

more

Spasskzement has placed another order with ­Polysius, this time for a POLAB laboratory automation system. In future, sampling, analysis and control of kiln lines 1 and 2 will take place fully...

more
Issue 2013-10

1 Introduction Highly variable material in the quarries, the usage of alternative raw materials (for instance fly ashes and sewage sludges) as well as the cost pressure regarding the employed...

more
Issue 2012-01

The increasing use of substitute fuels and substitute raw materials in the cement manufacturing process makes it essential to achieve prompt quality data acquisition within the framework of process...

more