Combustion technology

Coal dust dosing system

The BENNINGHOVEN EVO JET Burner, which is designed as an oil burner in standard models, can be expanded to utilise up to three other fuels. This turns the burner into a combination burner, which means that other types of fuel such as oil, natural gas, liquid gas, heavy oil, BtL fuels (liquefied biomass) and coal dust are all available as fuels. The coal dust is fed into the conveying pipe with the aid of the coal dust dosing system (flange-mounted onto the outlet valve of the coal dust silo) and blown into the head of the burner by a conveyor blower.

This well-designed coal dust dosing system offers operators a number of key benefits:

  • Functionality
  • Fuel consumption
  • Safety

Clever concept.

Continuous material flow into the coal dust dosing line
CLF (continuous coal dust flow)

> Low-pulsation
> Constant, steady and uniform flame
> Clean flame – full combustion of coal dust

Maximum safety.

Certified quality for guaranteed process/functional safety

> ATEX-certified, TÜV-approved
> The coal dust dosing system is manufactured according to the new ATEX Directive (2014/34/EU) and has type approval: TÜV 19 ATEX 8337
> Approved for use in Zone 21

Done and dusted

Optimum customer benefit. Efficient and cost-effective, ensuring high usability and outstanding performance

> With the correct burner settings, coal dust is a clean fuel and the equal of any of the other fuels used for mineral heating
> Complies with the stringent requirements of TA Luft and all related technical codes

Fuel savings*

Optimum customer benefit. Efficient and cost-effective, ensuring high usability and outstanding performance

> Auxiliary flame switch-off at approx. 20% burner output
> Auxiliary flame consumption: reduced from 80 l/h to approx. 50 l/h
> Heating oil reduced by approx. 35%
* Dependent in each case on BKS calorific value/quality

Optimised burner settings

Optimum customer benefit. Efficient and cost-effective, ensuring high usability and outstanding performance
> Vastly improved control range
> 1:8 with auxiliary flame, 1:5 coal dust solo
> Especially interesting for customers operating at a high RAP system rate, i.e. two burners run in parallel
> Enables white-flame burner to be operated at a correspondingly optimised, economical rate
> Specifically accounts for heat input of burner/s limited to 19.8 MW (German Greenhouse Gas Emissions Trading Act, TEHG)

Retrofit

BENNINGHOVEN Retrofit – keeps you state-of-the-art with plant optimisation and upgrading

> ROI possible within 3 years
> A development that pays its way: a low-cost fuel combined with an optimum, uniform flame pattern

Retrofit
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