The incineration shall be provided with a range of interconnecting ductwork involving the thermal reactor outlet
and the inlet of the chimney. This ductwork will include refractory lined tubes and higher temperature resistant
tubes made of rolled sheet steel of minimum 3mm thickness, welded along the span.
- The standard chimney shall be made of carbon steel plates of minimum 3mm thickness.
Cooling air inlet gap will soon be provided at the conclusion of the refractory lined tube on the standard chimney.
- The individual chimney sections shall have flanges on both sides.
- All sections shall be primed and sprayed with zinc dust enamel paint.
- Support wires shall be provided on chimney stacks.
- The following shall be located within ductwork run:-
- Mounting tubes for optical smoke density instrumentation.
- Flexible expansion compensator.
- A connection for a chrome/alum. Thermocouple, which is an integral part of the flue gas temperature
indictor/two phase alarm system.
2.5 ACCESS DOORS
- These shall be hinged from the front plate of the primary combustion chamber and shall comprise
1- A full diameter access/de-ashing door normally kept in the closed position by 2 handwheel clamps.
two – A more compact waste charging door hinged from and situated in the main doorway. This door will have a minimum of 500
- x 500 mm. aperture and be normally retained in the closed position by means of quick release latch.
- A viewing port, so constructed that the observation/protective glass is capable of being cleaned whilst the
incineration is in operation, and situated from the waste charging doorway, to enable the operator to safely celebrate the
progress of combustion.
- Each door shall be fabricated from mild steel and be internally lined to the same standards as the combustion
2.6 BURNERS AND BURNER CONTROLS
- A single burner, suitable for operation on fuel oil shall be mounted on each combustion chamber.