| SPECIFICATIONS OF A DIESEL FIRED INCINERATOR |
| 1.0 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 |
|
| e Temperature indication primary and secondary chambers 0-1200°C |
|
| e 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 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. |
|
| 3 |
Documentation: |
|
| Operation manual |
2 sets |
|
| Service/maintenance manual |
2 sets |
|
| 4 |
Certification |
|
| NEMA (or other recognized) certification |
|
| 5 |
Capacity to service equipment |
|
| The agent/supplier shall have adequate facilities, spare parts, consumables and qualified and skilled technical staff. |
|
| 6 |
Training |
|
| The agent shall conduct a two days incinerators training after installation & commissioning of the equipment. |
|
| The agent shall conduct a two days operation & maintenance training to the Biomedical engineering personnel after installation & commissioning of the equipment. |
|
