The incinerator should be a modern waste disposal unit, designed to burn medical waste in a clean and environmentally efficient manner. It should employ a temperature based logic control system to provide optimum control of the operating conditions and incorporate a high capacity thermal oxidizing secondary chamber. It should be designed to retain the exhaust gases, for at least 2 seconds to ensure the units effective destruction of the combustion products.
Waste type Healthcare waste
Waste density 125 to 350kg/M³
Waste calorific value 4000KCAl/Kg
Moisture content 10-25%
Estimated ash residue 5-10%
Nominal capacity 50Kg/hour batch load
Secondary chamber 2 seconds @ 850° c
The primary combustion chamber is the main structure f the incinerator, fabricated from mild steel plate and stiffened with rolled steel sections. it is carried from the floor level on a substantial steel support frame. Internally the shell is lined with calcium silicate insulation and a hot face combination of super duty brick work or strength cast able.
The primary combustion chamber must ensure minimum exit temperature is not less than 850°c
One manual load incinerator comprising :
Manual loading door
Horizontal solid hearth, refractory lined primary combustion chamber. Approximate dimensions 800mm diameter x 2100mm long
Full sized bulk load /ash removal door
1 off diesel –fired igniter burner –temperature controlled
1 off combustion air supply fan and distribution system ,automatic control
High capacity secondary chamber with residence time not less than 2 seconds @>850°c
1 off diesel fired afterburner –temperature controlled
Control panel –automatic operation
Temperature indication primary and secondary chambers
Refractory lined flanged chimney to a height of 10M above ground level
NOTE: The secondary combustion chamber must ensure that the gas temperature as measured against the inside wall in the secondary chamber & not in the flame zone, is not less than 1100°c.
5okg /hour at a nominal caloric value of 4000kcal/kg and an average bulk density of 120kg/M³ for health care waste