EVO JET Burner
Constantly rising energy costs as well as the careful handling of limited resources require innovative technologies and continuous development. The Benninghoven research team developed the new burner type EVO-Jet and put it into practice.
The well-known and proven operator convenience played a fundamental role during the development of the burner. The burner also impresses with its modular design and ease of access due to it being installed on a chassis.
With the help of frequency converter technology, not only the burner blower but also the oil pump can work perfectly coordinated in all performance ranges. Hereby the burner only provides the amount of power that is actually needed for the drying process. The complete redevelopment of the silencer combines noise minimization with an improvement of combustion efficiency. This is achieved by the rearrangement of the air inlets. The higher efficiency is a result of tapping the radiated heat from the dryer endplate and bringing this preheated air to the burner. Thus energy demand for air preheating is reduced and this helps to lower fuel costs. The EVO-Jet burner series has been fully developed and tested for all kinds of fuel. The energy saving program is topped off by the fact that Benninghoven already installs the electric motors in accordance with the prospective IE 2 standard.
- heavy fuel oils
- liquid gas LPG
- natural gas
- solid fuels (coal dust, biosludge etc.)
- or combination of the fuels, which can be switched without mechanical changes, simply by pressing a button.
Fuel oil is supplied to the nozzle assembly under pressure and atomised into the turbulent air flow from the EVO fan and ignited by a propane gas ignition flame. A clean stable flame is maintained in the burner head eliminating the necessity of a combustion chamber or refractory lined cone. The control system operates both the multi-wing air control and fuel control valve in synchronisation to ensure a precise air/fuel ratio throughout the whole range of operation. Heavy or waste oil can be utilised providing it is pre-heated to the correct viscosity.
Burner for gaseous fuels
Gaseous fuels, natural or town gas for example, are supplied to the burner at approximately 300 mbar pressure. Pressure reduction valve trains or gas compressor stations is required for high and low pressure respectively. Combustion of these fuels is achieved cleanly and efficiently with no resultant emission problems by introducing the fuel through a multi nozzle gas ring into the burner head where it is thoroughly mixed with the combustion air.
Liquid gas burner
Liquid Petroleum Gases (LPG) such as propane or butane are kept in specially designed storage tanks and are supplied to the burner via a high pressure pump. The burner is of a similar construction as the oil burner as the liquid gas can be sprayed by a nozzle arrangement and ignited in a similar manner.
Coal dust burner
Solid fuels, coal, peat, biosludge, etc. are transported to site in a pulverised state and are pneumatically conveyed into specially designed storage silos. Alternatively, a coal pulverisation plant is available for onsite manufacture. A cyclone and bag filter system collects the fine airborne coal particles and returns them to the special metering system which delivers the required regulated feed to the burner pneumatically. Fuels with a high percentage of volatiles can be delivered into the burner head and ignited directly by the pilot ignition flame. Low quality fuels will require combustion support by a continuous oil or gas flame.
Multi Fuel burner
The Benninghoven range of EVO-JET turbo burners can be supplied for multi-fuel usage. This enables the operator to switch from one fuel to another simply on the control panel, a microprocessor control is supplied to regulate and adjust the different air/fuel ratios required for the different calorific value of the fuels.