Ceramic recuperative burner (left) and metallic recuperative burner (right)

Description and application

The Hans Hennig recuperative burner is used for direct and indirect heating of industrial furnaces for the heat treatment of steel. It works on the countercurrent principle and uses the system's internal hot exhaust gas to preheat the combustion air. This leads to good combustion efficiency and low gas consumption. The NOx emissions are already far below the future demanded values according to TA Luft.

Temperature measurements on a single ended radiant tube heating unit

Features

• indirect heating in a single ended radiant tube
• direct heating with exhaust ejector
• application with metallic or ceramic recuperator
• super cool exhaust housing
• Low- NO_x  application
• flameless combustion
• easy refurbishment of existing burner systems due to  multivariable burner housing connections

Ceramic recuperative burner installed in a ceramic radiant tube

Ceramic recuperative burner with exhaust ejector for indirect heating purposes

Technical data

Fuels

Dimensions of ceramic radiant tubes

Download data sheet recuperative burner RBnox

Contact person

Mr. Peter Vorkorte
Tel. +49 2102 9506-42
Mobil +49 162 200 55 42
p.vorkorte@hanshennig.de

Description and Application

The high speed burner is designed for the combustion of gaseous fuels in the capacity range from 50 to 250 kW for industrial furnaces and hot gas generators. Nozzle mixing burner with separate supply of fuel gas and combustion air. Standard flame monitoring is with an integrated ionization electrode UV-Sensor is possible. Custom length adjustment to the furnace geometry is possible.

General

In its basic concept, the HG burner has the following outstanding features:

• The design with and without combustion air pre-heating
• Long slim flame
• Direct ignition via an integrated ignition electrode
• Flame tube from SiC Ceramic is possible

Application range

• tunnel furnaces
• bogie hearth kilns
• ceramic furnaces
• various industrial furnacesn
• hot gas generators

Other dimensions on request

The flat flame burners model HG-F are specially designed for all applications where the flame shall not get in contact with the temper material, per ex. in glass- and ceramic furnaces.

Technical specifications

• capasities from 100 kW to 1,000 kW, other dimensions and capacities on request
• burner stone in quadratic or round design
• complete mounted with ignition- and ionisation electrode or else ignition burner

Optional:

• with Hennig ignition burner
• with flame monitoring by Hennig UV cell
• Hennig or compact flame detector

Application ranges

• Applicable as a cover- or a side burner

The side burner model HG-S is equipped with a side air burner ceramic or metal air nozzle. The air nozzle block protects the metal burner parts from the back reflections of the furnace chamber. When the air nozzle is optimally designed, a stable flame pattern is safely ensured over a control range of approx.12:1. The flames themselves are insensitive to large air surges. This is only an advantage during commissioning.

Technical specifications

• Power range: 500 kW - 10 MW, higer capacities on request

Description and Application

The DTG burner system is used to heat up fresh and exhaust air for a downstream process. DTG burner device was specially developed for the combustion of natural gas with flowoptimized heating surfaces. The unit consists of the DTG burner as insert into a duct section with ignition/pilot burner, a fuel guide system and a burner management system.

The process air is used as combustion air and must contain an oxygen content of ≥17 mol%. If the oxygen content of the process air is <17 mol%, the burner must be equipped with an additional combustion air duct. The duct burner is completely equipped with gas-electrical igniter, UV flame sensor and differential pressure control for process air flow.

Adapts to any duct shape

The DTG burner insert is composed of burner elements arranged in modules. This design enables a cascading system that can be modularly adapted to the respective load requirements and allows a high turn down range. The DTG burner device is mounted axially to the process gas flow direction.

General

Scope of Supply:

• duct burner insert unit with igniter and flame sensor
• gas train rack with distributor on to the different gas ramps at burner unit
• burner management control system with control panel

Application Range

• drying processes at wood working, building material, porcelain, coating industry
• thermal incineration
• pre-heating acidic process gas

Technical Data

The flat flame burner is a radiant burner with high heat. The almost completely burnt-out gas flow around the inner surface of the cup-shaped burner stone. The stone adopts a heat. The heat transfer from the burner block is made to the work load mainly by radiation. A direct flame contact with the work load is excluded by the flame geometry.

Technical specifications

• with ignition- and Ionisation monitoring
• capacities from 400 kW to 8 MW

Application ranges

• steel industry
• petrochemistry
• aluminium industry
• general thermal process engineering

Cone burners Model HG-K uses air supplied by the system with an oxygen content of 18 % (volume) or greater. The special air distribution within the cone keeps the material temperatures low and improves the lifetime of the burner. The burner components are burner case, gas- or oil nozzle, gas-pilot burner with ignition connector and ionisation probe, and for supervision main burner the fail-safe UV-scanner.

Technical specifications

• 9 sizes up to a maximum power of 10 MW are available, other capacities and sizes on request.
• The burners will be ignited by spark igniter or pilot burner (type ZB), supervison is done by ionisation or UV-scanner

Application ranges

• Designed for thermal afterburning of the flue gases of industrial furnaces, drying-, paint- and coating systems, as also turbine gases and process gases (TNV).

Our flare plants are designed for long service lives and reliable operation. We place great value on the use of high-quality materials and a very rugged design.

We guarantee an optimal functioning of our flare plants, because these plants are planned, designed and manufactured completely at our own works.

A high operational safety of our plants is very important to us. Here, we place great emphasis on our own tried-and-tested and extremely safe-functioning ignition equipment.

Technical specifications

Fuel: natural gas town gas, LPG, other gaseous fuels on inquiry

Energy output

• JG 0 - 0,25 MW
• JG 1 - 1,6 MW
• JG 2 - 4,1 MW
• JG 3 - 10 MW
• special construction

Ranges of application

The Gasjet- Lances, serie JG, are applicable for heating of glass melting tanks with regenerative preheat of the combustion air in Underport- or Sideport-arrangement.

Installed in combustion air registers series LG the Gasjet- Lances series JG are suitable for the application at:

• glass melting tanks with recuperative preheat of the combustion air
• UNIT-Melter
• working ends
• drawing channels
• sand dryers
• rotary kilns
• dryers

Technical specifications

Fuel: natural gas town gas, LPG, other gaseous fuels on inquiry

Energy output

• JG-R1 - 1,6 MW
• JG-R2 - 4 MW
• JG-R3 - 10 MW
• special construction

Ranges of application

The Gasjet- Lances, serie JG, are applicable for heating of glass melting tanks with regenerative preheat of the combustion air in Underport- or Sideportarrangement.

Installed in combustion air registers series LG the Gasjet- Lances series JG are suitable for the application at:

• glass melting tanks with recuperative preheat of the combustion air
• UNIT-Melter
• working ends
• drawing channels
• sand dryers
• rotary kilns
• dryers

Lance burners for use at melting pots in the glass industry. Fuels: fuel oils EL, M or S acc. to DIN 51603

Ranges of application

• glass melting tanks with recuperative combustion air pre-heating
• UNIT melter
• working ends
• canals
• sand dryers
• rotary kilns
• dryers

These registers belonging to the LG series have been specially developed for use at melting pots in the glass industry and at dryers in the ceramics industry. The basic concept consists of the outer register with air connection, the core tube (flow rectifier) and the lance clamping and adjusting equipment. This air register burner is distinguished by the following main characteristics:

• Different lance elements promote its suitability for operation with fuel oils and combustion gases.
• Varying execution forms are available for operation with combustion air pre-heating temperatures of up to 800 °C.

On the basis of all of these differing operational demands the following assembly modules can be made available:

• Air staging element for a staged combustion air path to reduce the formation of nitric oxides (NOx).
• Ignition assembly set consisting of a flame stabiliser, ignition air guide, flame monitoring as well as electrical resp. gas-electrical ignition for use at batch operating cold-working furnaces.

Technical specifications

• burner output: 0,1 – 10 MW
• fuels: Natural gas; liquid gas; town gas; fuel oils EL, M, S
• combustion air temperature: max. 800 °C

Ranges of application

• glass melting tanks with recuperative combustion air pre-heating
• UNIT melter
• working ends
• canals
• sand dryers
• rotary kilns
• dryers

Monoblock burner for annealing and decorating lehrs up to 169 kW. Gas burners with blowers of the tg1-wpK and tg1a-wpK series are single-stage Monoblock burners with an integrated blower for combustion air, electrical ignition and monitoring. They are particularly suited for use at cooling lehrs and decorating ovens in the glass industry.

Applications

• annealing (cooling) and decorating lehrs in the glass industry
• annealing and tempering furnaces

Special burners for the lowest of outputs achieve the required working temperature. Burner units of e.g. 2,0 kW arranged in close proximity to each other ensure a uniform heating of the glass feeder.

Fuels

• fuel oil EL
• natural gas
• liquid gas

Ranges of application

• glass industry

Description and Application

The gas-oil-combi-burner is designed for the combustion of liquid and gaseous fuels in the capacity range from 1 to 40 MW for boilers and hot gas generators. The combustion air is supplied via 3 separate adjusting devices that a high mixing energy is possible over the whole turn down ratio. In the case of fuel oil, the fuel is mixed with the central air, whereby the flame is stabilized by a strong internal recirculation..

Low-Emission

A further reduction in NOx emissions is made possible by the recirculation of exhaust gas. For the extraction of exhaust gases, the front turning chamber is recommended for flame tube boilers, so that a short tube with compensator is sufficient for this purpose. A recigas or a Körting steam friction nozzle is used for the recigas flow to the burner.

General

In its basic design, the CK burner has the following outstanding features:

• distribution of the combustion air (air staging)
• two-part gas routing (fuel staging)
• gas / air premix

Application Range

• Hot gas generators (for drying processes)
• Flame and water tube boilers as well as thermal oil heaters with and without combustion air pre-heating

Other dimensions on request

Description and Application

The multi-fuel duo-bloc burner is designed for the combustion of pulverized, liquid and gaseous fuels in the capacity range of 3 to 75 MW for boilers and hot gas generators. The burner is used in various industries such as asphalt, chemistry, energy and environment, wood processing, process steam and heat.

Extention

The staged air pre-combustion chamber

By using a staged air pre-combustion chamber, additional air, recirculated exhaust gas or vapors can be fed to the combustion and thus to influence the flame / exhaust gas temperature. The staged air serves as a step air for the complete burnout of the primary mixture. Secondary, core and jacket air can be adjusted separately via a control system.

General

The CKE burner for dust firing is designed with a multi-flow air duct with internal air staging. The dust transport air is added with high fuel loading and high exit pulse via a central annular nozzle. The geometry of the core tube and a high spin of the secondary air around the annular dust nozzle create an excellent internal backflow and stabilize the flame.

Application Range

• Hot gas generators for drying processes
• Flame tube and water tube boilers as well as thermal oil heaters with and without combustion air pre-heating
• Thermal incineration plants

Other dimensions on request

Description and Application

With the CKM burner HANS HENNIG GmbH offers an innovative and compact solution for the future. The multi-fuel mono-bloc burner is designed for the combustion of liquid and gaseous fuels in the capacity range from 0.48 to 15.5 MW for boilers, hot gas generators, drying plants and asphalt mixing plants as well as biomass boilers and waste incinerators as ignition, support and start-up burners.

Compact, low emission

The dual-flow air and gas nozzle system enables low-emission combustion with a high turn down range. The burners have a variable mixing tube immersion depth as well as variable fan versions and can therefore be optimally adapted to any heat generator..

General

CKM gas / oil burners in mono-bloc design with digital combustion management up to 15.5 MW

• Electronic fuel / air compound control system
• Combustion manager with integrated gas valve leak test system as well as power controller and bus connection
• Integrated O2 control (optional)
• Speed control for combustion air fan (optional)
• Remote monitoring (optional)
• Compressed air / steam pressure atomization for high turn down ratios, short flames and lowest emissions

Application Range:

• Hot gas generators for drying processes
• Flame and water tube boilers as well as thermal oil heaters

*Mixing tube length depending on furnace or boiler type

Other dimensions on request

The burner series tg-m are Monoblock- type burners with integrated blower for the combustion air, electrical ignition and fl ame supervision through ionisation. They are especially designed for the application at annealing and decorating lehrs of the glass- industry. Due to the thermal stress out of these industrial processes in many heat protection measures are provided.

Technical specifications

• Modulating mode of operation for stepless adaption of the burner capacity through speed control of the combustion air blower.
• Gas-/ air compound unit microprocessor controlled automatic fi rer for intermitting or continuous (Option!) operation for control and supervision of pneumatic controlled forced draught gas burners with speed controlled blower and capacity controller input.
• Heat resistant mixing device and baffle plate.
• Connection dimensions compatible to the burner series tg1-/1a- wpK. The electric capacity control must be converted in this case from one step to modulating control.

Ranges of application

Burner for Annealing-/ Decorating Lehrs and Ancillary Furnaces of the glass industry

Description and application

Dust injection units are used for the thermal utilization of production residues e. g. used in the wood working industry.

The dust injection has no own igniter or any fire monitoring device like flame scanner. The injector is suitable to blow-in special solid fuels into a furnace where a main fire is already. Specials are e.g. fines of solid fuels that are problematic on a grate or stored in separate silos.

Dust/Granulate – multiple dosing unit

In order to achieve an optimum cross-sectional load in the boiler, several dust/granule nozzles are often arranged on the boiler. HANS HENNIG offers a multiple dosing unit with one dosing silo which serves each dust/granule nozzle by its own dosing screw.

General

The dust injection firing serves as an additional entry of dust or granules <5 mm into a hot furnace and consists of a central, almost wear-free dust and granulates pipe and a combustion air ring gap. Through the air inlet spiral a swirl is achieved for optimal mixing of fuel and air with internal exhaust gas recirculation in the furnace. With the SPS-based control system all nozzles and dosing units are monitored and regulated according to the system requirements.

Application range

• additional firing unit at boilers and grate firing units

Other dimensions on request

The pilot burners ZB (ZB-HT)* are ruggedly designed for industrial furnaces. Installed with an air/gas mixer as well as the ignition electrode they can be easily supervised by burner control unit or automatic flame guards in the electrode enterprise. The burners can be supplied with adjusted nozzle or needle valve for gas.

Technical spetifications

• burner capacities: 4 kW to 25 kW
• inclusive mixer
• standard lenghts: 200 mm, 400 mm, 600 mm
• lengs up to 20.000 mm according to customer spetifications are possible
• with metallic or ceramc nozzle
• measuring nipple for the detection of gas and air pressure