Metal-Fach SEG BIO 100, Operation And Maintenance Documentation, Page: 32 / 54

31
28. Trough burner manual
(USER/INSTALLER)
A complete fuel burner consists of:

motoreducer;
 steel screw feeder;

steel exhaust (burner head);

blower;
 ingnitor.
The trough burner with fuel bin and microprocessor regulator controlled blower fan make an
automatic system of feeding fuel to the central heating boiler. The heat exchanger receives thermal
energy produced on the steel grate and heats up the central heating water.
29. Installation and replacing the overload
clutch arrester
(USER/INSTALLER)
ATTENTION!
You must not use fuels containing over 0,7% of ash and humidity of over 10%.
Trough burner is optimised to work with wood pellet of the following parametres (EN 14961-2 :
2011 – class A1):

diameter: 6 ± 1 mm; 8 ± 1mm
 length 3,15 ≤ L ≤ 40
 humidity ≤ 10%

ash content ≤ 0,7%
 burning value 16,5 – 19 MJ / kg
 thickness ≥ 600kg/m3

ash melting temperature ≥ 1350°C
ATTENTION!
If fuel of lower parameters is used, sinter on the burner bed will occur
Proper type and sort of fuel ensures:
• trouble- free operation of the multi-fuel burner
• higher burner performance and fuel saving of up 15%
• lower emission of harmful chemicals into the atmosphere
30. Burner design
(USER/INSTALLER)
Trough burner is a modern solution that allows to burn wood pellet of 6-8 mm granulation. The
trough construction of the burner minimises resistance in feeding the fuel which improves the life
span of the screw. All the feeder connection elements are tightly sealed.
The fuel feeder transports fuel from the bin, which is located next to the boiler, to the burner.
This function is performed by the screw which is located in the body pipe. The screw receives its
torque from the reducer sleeve through the roller clutch. Both of them are connected with a pin
which serves as a overload protection.
The screw is powered the engine which consists of joint modules of the electric engine and the
reducer.The preformance is controlled by a microprocessor boiler controller. The engine must be
connected according to the schematics and the boiler controller manual.
In the lower part of the boiler body is located a support foot which enables levelling of the feeder
in the range of 2 cm. The trough burner has an air chamber which serves as an expander for the air
delivered by the blower, which is a part of the burner.
The trough ignition has tubes that allow intalling a 700W ignition. The mounting plate of the
trough burner is used to mount the burner on the central heating boiler. The connection between
the feeder and the boiler body must be secured with a seal which is delivered with the equipment.
If the seal is missing please use heat- resistant silicone of resistance of 1250C.
The burner has a return air inlet that allows for significant removal of harmful compunds
included in the fumes and at the same time enhancing the burning process.
Hot plate- also called a deflector for fumes is not necessary as an additional component. In the
multifuel burner this function is provided by the burner pipe vault. Its main purpose is to burn out
the chemicals that occur during burning fuel.
The burner is equipped with a 1/2 inch coupler and a pipe that can be connected to the
thermostat valve- so called „Fireman”. Its role is to extinguish the smouldering biomass and prevent
it from getting into the container. The system itself is powered independently from the controller
and boiler systems.It consists of a valve which is installed in the upper part of the feeder where it
can safely stop the returning smoulder (1/2” coupler) and a sensor inserted into a pipe which is
attached to the fuel feeder.
It is recommended to use the BVTS system of the following parameters:

max. operating pressure- 10 bar

water temperature 5 to 110C
 opening temperature 95C

hysteresis- 6C

ambient temperature- 0 to 125C
 flow 2,4 m 3 /h at water pressure of 1 bar and sensor temperature of 110C