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HF Burner - 001
HF Burner 001
001
Hot Air Burners
are used on steel reheat furnaces, glassmelters, non-ferrous melters, rotary calciners, and other applications where low velocity luminous flames are desired. They use combustion air at temperatures up to 600oC. They burn gases of 2000kcal/scf or higher and light or heavy fuel oils.

Gas As A Fuel
001 Burners provide soft luminous flames when burning natural or coke oven gas in large open furnaces, such as slab or billet heaters. Flame shapes depend on forward velocity of the burning gases. Although rated nominally at 4.5"wc (550°C) air, flames tend to develop full length at combustion air pressures of 2-3"wc at theburner. Gas flames are stable when starting with ambient temperature combustion air in cold, tight chambers; but well defined flame shapes may not develop until air is over 200O C. For stoichiometric firing, required natural gas pressure at the burner varies from approximately 60% of main air pressure with 10o C air to approximately 25% of air pressure with 550°C air. Retract the oil atomizer during gas operation.

Oil As A Fuel
Standard 001 Burners use high pressure "tip emulsion" atomizers with 5 to 6 kg/cm2 steam or compressed air. Resultant clean, highly luminous, well-defined flames are slightly shorter than natural gas flames. Heavy oils (#4 through #6) must be heated to reduce viscosity to 100 SSU or less at the burner. This atomizer is highly efficient, consuming less than 5kg/cm2, or 20ft 3 of 80 psi air of #6 oil burned. (Lower firing rates reduce this efficiency somewhat.) Are liable low pressure atomizer, using 40-70”wg cold air suppliedby a turbo blower, is available for most grades of oil when steam or compressed air is unavailable.

Control Systems
001 Burners operate from 0.2"wc main air pressure to 10"wc or higher. High fire air rate usually is between 2"wc and 6"wc. Input and air/fuel ratio controls should be selected and engineered for the range ability required. If combustion air temperatures vary considerably during normal operating cycles, metered flow control with air temperature compensation is recommended. When combustion air can be metered on the cold side of the recuperator, it may be acceptable to use differential pressure balanced ratio regulator. However, recuperator leakage can cause significant distortions and variations in air/fuel ratio when "cold lead metering" is used. ATEC field engineers are qualified to recommend the system most suitable for each application.

Ignition And Flame Supervision
A Pilot assembly is normally used to light the burner. Ignition sequence should provide for low fire start between 0.2 and 1.0"wc main air pressure. Pilot mixture pressure should be 3"wc or more. The Honey well UV detector has been tested on 001 Burners.

001 CAPACITY–WITH ATOMIZER
  Steam at 5kg/cm2 Atom, Sir, scgm at 5kg/cmi(Oil Flow rate)
Burner
Size
Main Air,scfh 550oC air at 4.5"wc AP Oil,l/hr based 1400ft 3 air for each oil Atomizer Designation (Oil Flowrate) (NoOil)   (NoOil)
-8A 19000 scfh A56 lt/hr 002-01 50.6 kg/hr 0.902 kg/lt 22 kg/lt 7.7scfm 13.3 scfm
-9A 32200 A23 002-01 41.8 0.45 22 6.3 13.3
-10AA 40000 A29 002-01 37.4 0.32 22 5.7 13.3
-11AA 53000 A38 002-01 33.0 0.21 22 5.0 13.3
-12A 78000 A56 002-1 176.0 0.78 77 26.7 46.7
-14A 106000 A76 002-0 167.2 0.55 140 25.3 46.7
-16A 134000 A96 002-0 143.0 0.37 140 21.7 46.7
-18A 172000 A123 002-1 396.0 0.80 225 60.0 75.0
-20A 215000 A154 002-1 352.0 0.57 225 53.3 75.0
-22A 260000 A186 002-1 330.0 0.44 225 50.0 75.0
-24A 310000 A221 002-3 1210.0 1.36 680 183.0 220.0

Enquiry
Other Products
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NOTE : Dimensions shown are subject to change. please obtain certified prints from Axis Thermal Engineering Company. If space limitations or other considerations make exact dimension(s) critical.
WARNING: Situations dangerous to personnel and property can develop from incorrect operation of combustion equipment. Axis Thermal urges compliance with National Safety Standards and Insurance Underwriters recommendations, and care in operation.