Oil Burners

2562 Oil Burners are designed to give maintenance-free operation using heavy oil, light oil, or gas. There are no “Superfluities” on this burner it has a heavy cast iron body of clean design that avoids clogging even when used on tough jobs such as forge furnaces fired with heavy oil.

Burner Design Features

The total air capacity of the burners is listed under list I for single blower supplying at 20”wg combustion air and 24”wg atomizing air for light oil operation and 32”wg combustion air and 38”wg atomizing air for heavy furnace oil operation. Use list II and III when selecting separate blowers for combustion and atomizing air. For sizing blowers or burners at other pressures, add figures from the List II and III to get total capacity. Capacities shown in list II is for operation on gas with the air curtain closed. On oil operation these capacities are increased 20% the additional air supplied through the atomizing air connection. When burning either gas or oil with the shutter open, burner capacities may be doubled if furnace conditions assure sufficient secondary air.

Burner Working Nature

Oil with a viscosity of 70 to 90 seconds Redwood I and a pressure between 25 and 30 psi, should be supplied to an Air/Oil ratio controller which will deliver oil to the burner at a pressure proportional to the main air pressure, thus maintaining the correct air/oil ration at all firing rates. The atomizing air pressure at the burner may be 30”wg when using distillate oil, 44”wg when using heavy oil.

The 2562 burners can operate on any gas of 2000 to 12800 kcal per cu.ft heating value. Switching from gas to oil operation or oil to gas may be done quickly without furnace shutdown, simply by turning off one fuel valve and opening the other.

Burner Construction

The heavy cast iron body can stand much abuse. All internal parts of the 2562 burner are machined. The smooth surfaces stay free of oil deposits and dirt, thus greatly minimizing the need for cleaning, oil is, put though the burner in a straight passage having a large cross-sectional area permitting visual inspection for clogging and easy cleanout if necessary. The precise control oil valve is a non-plugging V-port oil valve which produces small and uniform flow rate changes through out the 180o sweep of the control handle.

Features
High Velocity	Comparable to world’s renowned Manufacturer of High Velocity Oil Burner
Wide Stability Range	From 15% Xces fuel to 400% Xces air.
Unit Construction	The high temperature tile is secured in the main body section - no extra support is required.
Useful Capacity Ranges	Ratings from 0.5 mkcal to 6.4 mkcal /hr.
Easy Inspection / Service	Air and gas piping need not be removed for complete access to internals.
Preheated Air Capability	To 420°C main air temperature at the burner.

2514 Fire All Heavy Oil Burners are rugged, maintenance free, intact burners for burning light or heavy oil on a wide applications. Capable of efficient operation throughout a wide temperature range, they are equally at home on low temperature ovens and high temperatures forge and melt furnaces. Sealed mountings help maintain furnace pressure, controlled atmosphere, and closer fuel/air ratio control—all contributing to better product quality. Fire All Burners have been used for years with great success on all types of furnaces.

Combustion Performance

2514 Burners are better with 200% or more excess air. They may also be operated with excess fuel without forming carbon if additional combustion air is available in the furnace near the burner. Excess fuel limit with heavy oil is 50% as atomization deteriorates at richer ratios. Burners can be turned down to atomizing air only, but stability limits vary depending on burner size, grade of oil, and furnace atmosphere. For prolonged operation on atomizing air only in furnaces over 1200°C specify an alloy burner nose.

Burners are suitable for some preheated combustion air applications (up to 350°C). Oil viscosity at the burners should not exceed 90 seconds R.W.I; oil pressure at the Ratio controller should be between 25 and 30 psi. Minimum atomizing air pressure at the burner is 24”wg for light oil, 42”wg for heavy oil

2422 Excess Air Light Oil Burners are commonly used on heat treat and non-ferrous melting furnaces, kilns, ovens, air heaters, dryers, chemical process equipment, and other applications where superior temperature uniformity is required. These sealed-in, nozzle-mix burners for gas and/or light oil are stable on stoichiometric ratio, with huge amounts of Xces air, or with up to 50% Xces fuel (provided additional air for combustion is in the furnace near the burner.

Application Temperature

The 2422 burners can be used with chamber temperatures upto 1110° C. If furnace temperature could rise above 850°C after shutdown, some air should be maintained through the burner to prevent overheating.

Performance

Burners can be lighted at rich, lean, or correct air/fuel ratio, then immediately turned to high fire. Required gas pressures are low: 2”wg at the burner for coke oven gas, less for natural gas. Required oil pressure at the burner is nearly zero, but a pressure drop of about 10 psi should be taken across the Precise Control Valve.

The most common air fuel control system for 2422 Burners uses a cross-connected regulator and Ratio controller. When appropriate for the application, flow balancing systems or fuel only control is very satisfactory. If furnace temperatures after shutdown rise above 950°C, pass some air through burner to prevent overheating. During gas performance, use at least 7”wg atomizing air to cool atomizer (full atomizing air may be used); or for extended periods of performance on gas, atomizer can be withdrawn and stored: Use a back plate and gasket to seal rear of burner.

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

Gas As A Fuel

002 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 the burner.

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 200°C. For stoichiometric firing, required natural gas pressure at the burner varies from approximately 60% of main air pressure with 10°C air to approximately 25% of air pressure with 550°C air. Retract the oil atomizer during gas operation.

Oil As A Fuel

Standard 002 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 one pound of 5 kg/cm2 steam, or 20 ft3 of 80 psi air of #6 oil burned. (Lower firing rates reduce this efficiency somewhat.) A reliable low pressure atomizer, using 40- 0”wg cold air supplied by a turbo blower, is available for most grades of oil when steam or compressed air is unavailable.

FURNACE OIL BURNER - 2562

Burner Design Features

Burner Working Nature

Burner Construction

HIGH VELOCITY OIL BURNER- 2435

FIRE ALL DUAL FUEL BURNER 2514

Combustion Performance

EXCESS AIR LIGHT OIL BURNER - 2422

Application Temperature

Performance

HF BURNER- 002

Gas As A Fuel

Oil As A Fuel

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