LOMASPROCESS GAS ANALYZING SYSTEM
The modern operation of metallurgical melting plants
and furnaces calls for high performance with regard toefficiency, safety and environmental protection. Thisrequires a broad control, supervision and optimization ofthese plants and their processes. In most of the cases, theprocess conditions leave their fingerprint in the processoffgas chemistry.
YOUR CHALLENGE
In order to improve your processes regarding efficiency,
safety, quality and environmental protection, you firstneed to determine what is actually going on inside yourconverter or furnace. Process data can be efficiently
collected through the analysis of the gases emitted in thecourse of the production process. In the case of BFs, BOFs,AODs, EAFs, VODs and RH plants, gas analysis must be
done on very hot and sometimes extremely dust-ladenmeasurement points.

Lomas acts as an electronic eye for the chemical andphysical process in the furnace. A typically redundant
system continuously samples the process gas, which is thenprepared and subsequently analyzed by means of adaptive,process-dependent analyzers. In the case of complex gas
mixtures mass spectrometers can be used, in other cases
infrared-, paramagnetic-, laser- or other technologies areimplemented.
The layout and composition of the Lomas system is always
plant-specific, so that a maximum of efficiency and benefit
can be generated for the actual situation. This starts at theflexible analyzer technology and ends at the other side of
the system, at the specific hoses, sampling probes and gas
treatment equipment.

Analyzing such process gases during the entre production
processes – also during charging or tilting - is therefore
often quite challenging and requires very specialequipment.
OUR SOLUTION
The Lomas gas analysis system provides plants with theopportunity to save costs, increase production, ensure
quality and efficiency and to protect the plant fromdangerous process situations. All this is done with theadvantage of flexible state-of-the-art analyzing sensors,
patent-protected sampling devices and based on over 150
references worldwide - on all different plants mentioned
above.

Human-Machine-Interface of a Lomas-EAF Systemprimetals.com

Implementation of Lomas data into BOF-Process Model

The process gas analysis can be transferred to a Primetals
Metallurgical Process Model or can alternatively and simply
be used individually.
This special and proven design of the Lomas ensures highoperational safety, a long service life and high availability.
It offers precision, a modular concept, robustness and iseasy to operate. These advantages and its low-maintenancefocus make it to a very powerful gas analyzing systemespecially suitable for harsh environments and demanding
process conditions.
CHARACTERISTICS AND OPERATION
The patent-protected Lomas probes are designed asheated- and water cooled gas sampling probes madeof Titanium alloyed corrosion resistant steel. For special
processes, also Nickel-Super-Alloys and other materials canbe considered. This makes the system especially suitable
for the very demanding and fast-changing gas regions
along the center line of offgas ducts.

Lomas gas sampling on EAF

MAIN BENEFITS• Reduced process energy consumption, alloys,
refractory material and media costs while
increasing production efficiency and plantsafety• Fast detection of dangerous situations (e.g.
increasing O2 and H2 values during the BOFblowing process, or increasing H2O in EAFprocess gas)
• High accuracy and short response time (T90)
in measurement and data evaluation• Availability of more than 99% while focusing
on low maintenance. Highest reliability androbustness for harsh industrial environment• Amortization within less than 1 year. Built for
long-tem use in extreme environments

In addition to this, several automatic and logic functions
are embedded in the system. They assure an automatic
self-cleaning, warn of dangerous situations, remind ofmaintenance or give forward-looking service information.
But above all, the system also autonomously detects
problems, react upon them and try to correct them (e.g. byautomatic extra cleanings without disturbing the process,or by switching partially redundant system parts).

FEATURES AND TECHNICAL DATA

All in all, the Lomas System is a fully developed and very
powerful gas analyzing system. It is specially designed
for very demanding process gas analyzing tasks and was
installed more then 150 times worldwide as of now.

Typical analysis components

Gas sampling
Maximum process gas
temperature
Maximum dust load

Typical Gas Components
Safety indicators

1,800°C
2,000 gram/Nm3

CO, O2, H2, CH4, CO2, etc.
H2O

Fields of application
Metallurgy

Primetals Technologies
Austria GmbHA joint venture of Mitsubishi Heavy
Industries and partners
Turmstrasse 44 | 4031 Linz | Austria
primetals.com
Order No. T10-4-N571-L2-P-V3-EN
Printed in Linz | © 2020

BOF, BF, EAF, RH,Copper furnace

The information (including, e.g., figures and numbers) provided in this document contains merely general descriptions or characteristics
of performance based on estimates and assumptions which have not been verified. It is no representation, does not constitute and/or evidence a contract or an offer to enter into a contract to any extent and is not binding upon the parties. Any obligation to provide
and/or demonstrate respective characteristics shall only exist if expressly agreed in the terms of the contract. These estimatesand assumptions have to be analyzed on a case-to-case basis and might change as a result of further product development.
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