Overfire Air Smoke Abatement Systems
Smoke from any hand or stoker-fired plant is actually carbon or soot particles in the gases given off during the combustion process. These particles form when hydrocarbons in the fuel are broken down but do not burn because of lack of contact with oxygen in the proper temperature zone. Since soot is difficult to burn, the best way to eliminate or abate this soot, or smoke, is to prevent its formation.
The Will-Burt Overfire Jet System eliminates smoke by mixing air and unburned hydro carbons under proper conditions of temperature and time for complete combustion.
Every stoker or hand-fired boiler plant, regardless of the care exercised in its operation, will encounter a point in the operating range where overfire jets can be beneficial in eliminating smoke. Other benefits may also be realized, such as
- reduction of soot accumulation in boiler tubes
- lower stack temperature
- increased boiler efficiency
However, an overfire jet installation should not be considered as a substitute for proven design, proper equipment and good operating practices.
|Stoker Size (lbs. per hour)||150 – 400||500 & 600||750|
|Manifold Assembly No.||20147||20148||20149|
|Manifold Assembly Size||4×32||5×44||6×49|
|Fan Assembly No., 1 Ph||20940||20942||20944|
|Fan Assembly No., 3 Ph||20941||20943||20945|
|Control Section||Blower Inlet||Blower Inlet||Blower Inlet|
|Timing Panel Control||Will-Burt TP2||Will-Burt TP2||Will-Burt TP2|
|SSTL Jet Nozzle||20290, 5X||20290, 6X||20290, 6X|
|Static Pressure (in W.G.)||10||15||15|
|Air Duct between Blower|
Outlet and Manifold
|Customer Supplied||Customer Supplied||Customer Supplied|