SPECIFICATIONS OF A DIESEL FIRED INCINERATOR
Incinerator type: Animal waste incinerator
Load Capacity minimum: 1500 kg
Burner fuel type: Diesel
Burner fuel rate max.: 20-25 Liter diesel/ per hour
Burners minimum: 3
Burning rate minimum: 200-300kg/per hour
Furnace bar area minimum: 2 м3
Fuel tank capacity minimum: 300L
Main chamber burning temperature min. 1100 0C
Afterburner chamber burning temperature min. 1300 0C
Power supply 220V
Incinerator items and electrical appliances should be weather proof and humidity resistant within the range of 30-90 %
Incinerator should be compliant to the environmental protection rules in accordance to national legislation
Maximum dimensions C Length C 5m, width C 3.5m, height C 5m
INCINERATOR, DIESEL, FIRED.
Specifications Indicate if item offered complies with each specification.
1.1 General description
The incinerator should be a modern waste disposal unit, designed to bum 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 unit’s effective destruction of the combustion products.
For the Supply, installation & commissioning of a Medical Waste Incinerator as detailed below:
i. Waste type Health care waste
ii. Waste density 125 to 350Kg/M3
iii.. Waste Calorific Value 4000 KCAL/Kg
iv. Moisture content 10-25%
v. Estimated ash residue 5-10%
vi. Nominal capacity 50Kg/hour batch load
vii. Secondary chamber 2 seconds @ 850°C
viii. Environmental NEMA ACT (EMCA) 1999, Waste management regulations, 2006
2 Equipment
2.1 Primary Combustion Chamber
The primary combustion chamber is the main structure of 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 brickwork or high strength castable.
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 800 mm diameters x 2100mm long
Full sized bulk load/ash removal door
1 off diesel-fired ignition burner ― temperature controlled
1 off combustion air supply fan and distribution system, automatic control
High capacity secondary combustion chamber with residence time not less than 2 seconds @ >850°C
1 off diesel-fired afterburner ― temperature controlled
Control panel ― automatic operation
ð Temperature indication primary and secondary chambers 0-1200°C
ð 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.
2.2 Throughput
50kg/hour at a nominal calorific value of 4,000 kcal/kg and an average bulk density of I20kg/ M3 for general waste and l60kg/ M3 for health care waste.
2.3 Ash
The waste will be reduced by 90~95% to leave 10 -5% ash
2.4 Quality/Environmental Standards
NEMA ACT (EMCA) 1999 BS3316
2.5 Operating Period
Anticipated daily operating period 8 hours
Maximum operating period 12 hours
2.6 Chamber
Should be refractory lined to the following standard; Hearth and lower section of chamber walls
2.7 Hot face material
Super duty firebrick
Limiting continuous service limit 1500°C
Thickness 100mm
Thermal conductivity 1.3 W/mk
2.8 Insulation
Calcium silicate
Limiting continuous service limit 1000°C
Thickness 25mm
Thermal conductivity 0.095 W/mk
2.9 Chimney / Stack
Should be manufactured from refractory lined mild steel&nbs
p;or high quality air-cooled stainless steel. The chimney/stack should have a minimum height of 10 meters above ground level.
2.10 Ignition Burners
Fully packaged oil type, complete with electric ignition and flame failure controls, wired with continuous running fan and complete with all valves, fan and motor.
Maximum rating: at least 450kW/hour
Burner: arranged for on/off operation
Maximum consumption: at least 6 litres/hour
Average consumption: at least 3 litres/hour
2.11 Afterburner
Fully packaged oil type, complete with electric ignition and flame failure controls wired with continuous running fan and complete with all valves, fan and motor.
Maximum rating: at least 450kW/hour
Burner: arranged for on/off operation
Maximum consumption: at least 9 litres/hour
Average consumption: at least 4.5 litres/hour
2.12 Flue gas treatment
Should have particulate remover (scrubbers)
2.13 Electrical Supply
Single phase 220/240 V a.c., 50/60 Hz.
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