INTRODUCTION The Enviromix 2000 range of low NOx single and dual fuel burners from Hamworthy Combustion Engineering (incorporating Airoil-Flaregas) has been designed specifically for process and petrochemical heaters, where low emission levels are now demanded. With over ninety years experience in burner design, a multi-national, project management team and a worldwide support network covering over eighty countries, we provide the highest levels of product performance and customer care available on the market today.

Benefits of the Enviromix 2000 Series

Staged Air Burner

Ergonomic practical design which results in:

Low maintenance

High reliability

High flame stability

High turn-down ratio

Performance

Low NOx emission levels for all fuels

Low noise levels, typically less than 82 dB'A'

Long service life

Quality

ISO 9001:2000 accreditation

Flexibility

Available in natural or forced-draught versions

Capable of burning gas or oil, or a combination of both

Suited to a wide variety of applications

Fully adaptable to changes in process conditions

Available in flat-flame version

Waste gas firing capability

Support Network

Comprehensive training and after-sales support

Offices in fifteen countries and five continents

Fully qualified representation in over eighty countries

worldwide

Commissioning

Site supervision

This network ensures that wherever you are in the world, you will

have easy access to qualified personnel to provide technical

support, spares and training, whatever your requirement.

Enviromix 2000 Burner

ENVIROMIX 2000

Environmental Legislation

Hamworthy Combustion Engineering Ltd has developed the

staged-air principle to such a high level that the Enviromix burner

meets almost all statutory worldwide NOx emission requirements.

This can be proven by the acceptance of the product by countries

such as Germany, Sweden and the United States, who have some

of the most stringent environmental legislation in the world

Additional Certification Russian Certification

(Gosgortechnadzor)

Polish Certification UDT

Duties Natural-draught

models are available

for duties between

0.5 – 5.0 x 106 kcal/h

Forced-draught

models are available

for duties between

the world

1.0 - 10.0 x 106 kcal/h,

Low Noise Levels • Typically less than 82 dB'A' SPL from a single burner, at 1

metre. Additional noise reduction is available as an option

Total Customer Care Hamworthy Combustion Engineering Ltd is dedicated to

providing comprehensive customer care through:

Product familiarisation at our

comprehensive training centre in

Poole or on site

Global after-sales support

through our worldwide

network of service

engineers

Continual product

development and

enhancement

through our

Advanced Research

& Technology

Centre, the largest

of its kind in the

world

Product Range

Liberation Emissions Fuels Burner

106 kcal/h Std Low NOx Gas HFO Diesel Naphtha

Natural Draught Enviromix 0.5 – 5.0

Natural Draught Enviromix Flat Flame 0.5 – 2.5

Forced Draught Enviromix 1.0 – 10.0

Forced Draught Enviromix Flat Flame 1.0 – 4.0

FEATURES Design Features Low excess air capability for maintaining efficient combustion

Pre-fired muffle block designed to withstand arduous operating

conditions

Aerodynamically designed swirler to ensure facility optimum air

distribution and maximum flame stability

Hot/cold air operation for increased flexibility

High H2 gas capability

High turn-down capability

Removable oil gun, ensures continual operation whilst firing

gas

Available with pilot/ignition/ionisation

Main flame scanning capability

Robust construction ensures long and reliable life

Designed in accordance with AP1535

Product Range Continued

Combustion Air Mounting Position Application Burner

Forced Natural Floor Side Wall

Fired Heater Reformer Cracker

Natural Draught Enviromix

Natural Draught Enviromix Flat Flame

Forced Draught Enviromix

Forced Draught Enviromix Flat Flame

Refractory Quarl Air Swirler

Secondary

Combustion Air

Primary

Fuel Gas

Gas Gun

Windbox

Vertical cylindrical heater installation The primary air is mixed with the total quantity of fuel producing a

rich flame, which is both relatively cool and deficient in oxygen

conditions that inhibit NOx formation. Secondary air is then

introduced downstream of the primary air zone at which point

combustion is completed in an environment which is sufficiently

cool to limit thermal NOx production.

The windbox design was established utilising Hamworthy’s

extensive flow-modelling capabilities in order to achieve optimum

air distribution throughout the burner, ensuring high efficiency

combustion performance combined with minimal NOx formation.