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 100Kg/hour batch load
vii. Secondary chamber 2 seconds @ 1100°C
viii. Environmental Environmental Management Coordination Act, 1999 and in particular, Waste management regulations, 2006
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 (heavy duty steel door with appropriate
Horizontal solid hearth, refractory lined primary combustion
chamber. Approximate dimensions 800 mm diameters x 2100mm
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
High capacity secondary combustion chamber with residence time
not less than 2 seconds @ >1100°C
1 off diesel-fired afterburner — temperature controlled
Control panel — automatic operation
Temperature indication primary and secondary chambers 0-
1200°C. Both chambers must be insulated with refractory
material (super duty 100mm thick firebrick with 25mm thick
calcium silicate insulation)
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.
100kg/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.
The waste will be reduced by 90~95% to leave 10 -5% ash
2.4 Quality/Environmental Standards
Environment Management and Coordination Act, 1999
2.5 Operating Period
Anticipated daily operating period 8 hours
Maximum operating period 12 hours
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
Thermal conductivity 1.3 W/mk
Limiting continuous service limit 1000°C
Thermal conductivity 0.095 W/mk
2.9 Chimney / Stack
Should be manufactured from refractory lined mild steel or high
quality air-cooled stainless steel. The chimney/stack should have a
minimum height of 10 meters above ground level.
Refractory lined flanged chimney must be above the height of
any existing roof adjacent to the incinerator
Provide lifting gear to hoist, erect and mount chimney, and
provide supports slings as necessary. Allow for cutting of tree
branches to facilitate the exercise.
The chimney shall be painted with approved heat resistant
paint after installation.
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
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). A mechanical
particulate collector must be incorporated after secondary
combustion chamber for removal of particulate pollutants
entrained in the flue gas stream.
2.13 Diesel Tank
To provide for diesel services tank (Capacity 400 litres)
including level indicator
The tank should be connected to the incinerator at higher level
to enable free-flow of diesel from the tank to the incinerator.
The connecting pipe must be a black pipe of approved gauge
and diameter. Include other accompanying accessories and
Connect burners to fuel supply.
2.14 Electrical Supply
Three phase 415 V a.c., 50/60 Hz.
Operation manual 2 sets
Service/maintenance manual 2 sets
National Environment Management Authority (NEMA)
5 Capacity to service equipment
The agent/supplier shall have adequate facilities, spare parts,
consumables and qualified and skilled technical staff.
Provide lifting gears as forklift, gantry, rollers, and lifting
jacks and position incinerator.
6 Commissioning and Training
The Agent will test all set operating parameters
The agent shall conduct a two days operation & maintenance
training to the Biomedical engineering personnel and incinerator
operators after installation & commissioning of the equipment.
7 Commissioning Maintenance Contract
Before the expiry of the warranty/ signing off, the supplier shall
provide a one-year replacement service parts (e.g. oil filters, air
filters), the Quarterly routine maintenance price per quarter
for three (3) quarters.
Maintenance control proposal.
The maintenance contract price includes labour, transport and
accommodation for the attending technicians.