Primary air feeding

Primary air is internally divided in M.A.S. air and Central air. Cooling air for any application (cooling of fuel oil lance, coal or gas channel ...) is taken from the burner's central air channel.

Standard execution is to equip the bruner with one single radial fan for all purposes.
(internal splitting of M.A.S. air, Central air and Cooling air's)

M.A.S. burners are designed to obtain a specific primary air momentum of 5 - 12 N/MW. Operation experience with M.A.S. burners show that small air pressure losses and deep air penetration into the kiln does not require a stronger momentum than 5 - 8 N/MW, for best operation result. Nevertheless we supply burners with higher momentum, more than 8 N/MW on request.
Such kind of burners are either equipped with radial fans or rotary piston blowers for primary air feeding.

Standard and Alternatives

Primary air supplied by:	No. of sockets	Split up	Execution
Single stage radial fan	1 for all purposes	internal	Standard
Single stage radial fan Single stage radial fan	1 for MAS air 1 for Central air	external	Alternative
Roots blower	1 for all purposes	internal	Alternative
Roots blower and Single stage radial fan	1 for MAS air 1 for Central air	external	Alternative