Medical waste incinerator
Standard requirement:
The medical incinerator
should meet the European standards 2000/76/EC.
Basic requirements:
1-
Capacity 100kg/hr.
2-
Work for 24 hours.
3-
Unit should have enough combustion room
consists of two combustion chambers (mounted vertically)
4-
Unit should supply with control
methods for air entry to the primary and secondary chambers and hence
incineration of the waste is accomplished.
5-
The unit charging is done automatically
and have an option to be done manually.
6-
The ash removal is done automatically
and have an option to be done manually
7-
The unit should have a dry filtering
unit.
8-
The unit should be controlled from the
control panel.
control panel :
Should show different tasks
of operation using (PLC)
-Temperature in combustion
chamber
-time of operation and
combustion.
-different pressures.
-amount of air in
combustion.
-efficiency indicator.
-emergency system in case
of increasing pressure or temperature.
f- Time for gas passing:
Minimum time required for
passing to combustion chamber for oxidizing 0.5 seconds at 800 degree
Celsius .
1- design details:
A-primary combustion
chamber:
Oxidize all waste to
combustion residuals and temperature not less than 800 degree Celsius.
b- Secondary chamber:
Continue combusting
combustion gas residuals and hanging particles using additional burner
temperature not less than 1100 degree Celsius and this conditions is
reached by harmonizing between temperature and time of passage to ensure
adequate oxidizing supplying enough air to ensure turbulence of gas all
the time this is controlled from control panel.
i- burners:
use diesel , natural gas ,
liquefied petroleum gases according to standards burners should have
main vent to be used for protection.
2- materials:
-the chamber should be
covered from inside with refractory brick with thickness 22 cm aluminum
silicate insulation 11cm thickness with the ability to change this layer
.
- All surfaces made of
carbon steel should be surface treated and covered with primary layer.
That holds the working condition and easy to clean it is recommended
that materials are chosen according to standard codes.
Chimney exhaust gas
filtration:
To meet the European
standard 2000/76/EC
Chimney height should not be less than 12 meter and radius 8 cm
