Archive: October 15, 2024

incineration in china

Combustion Efficiency     99.99%

Retention time    Of the flow gases not less than 2 Sec in the hot portion.

Excess Oxygen concentration  Of primary combustion chamber 3-6% max.

Refractory    The chambers should be lined with high thermal insulating refractory bricks with suitable thickness and

with highly temp. resistance. Not less than 1400 C for the first combustion chamber, and not less than 1600 C for the

secandry combustion chamber, and at the same time prevent the Temp. of the outside body of the chamber not higher than

70 C.

Doors    Should be lined with the same bricks, and the edges lined with special suitable insulating material to prevent

any gas escaping, and the doors should be kept under negative pressure during the operation.

Air Emission Control System  With high destruction and removal efficiency (DRE). Not less than 99.9999 as per KEPA.

Wet System  If the system equiped with a CEMS washing the flow gas with water, then it should be manufactured from

suitable anti corrossion materials, and equiped with pH meter to measure and neutralize the water. It should be able to

use the water in closed recycled circuit many times before treating/ discharging into the sewage system in compliance

with KEPARS.

Chemical dosing It should be equiped with suitable autochemical dosing system to control the pH for the water of the

wet scrubber system including sensors.

Chimney       It should be suitable with the capacity and the technical specifications, with height not less than 12m from

ground level. With easy opennable sampling point equal about 3 inch, and the optimum sampling locations is at least 8D

downstream direction and 2D upstream from any flow disturbancies.

Sampling point    Should be equiped with a platform located down the sampling point by a distance not less than 1 m, and

equiped with suitable stairs from ground to the port with comfortable slope.

Ash Removal      It should be auto ash removal system.

Fuel       It should be dual system, such as diesel and natural gas.

Feeding System  Should be auto feeding system into primary chamber.

Control Room     Should be equiped with a control panel shows Temp. of the combustion burners, gas monitoring, digital

Temp. indecation for the primary/secondary chambers, digital Temp. indication for the gases…etc. it should be also

Auto operation, burnures on/off auto lamps switch, auto start/stop for air emission control system, auto gas continuous

monitoring system reading and print out of gas emission parameters…etc.

Cooling System   The primary chamber should be provided with auto cooling systemthrough nozzles to permit direct cooling

if the Temp. will be heigher than 1100 C.

Inter-lock system       The incinerator should be equiped with inter-lock system to prevent feeding the waste to the

primary chamber if the combustion Temp. less than 500 C.

Flue treatment and cleaning     To consist a combined system (wet/dry), using water, lime, active carbon and ceramic

filters.

Quenching system/Heat exchanger Should be made and manufactured from anti corrosion and acid attack materials such as

stainless steel 316 or equivalent.

Noise Level  Not more than 85 dBA during normal operation.

Inaddition    The desigh should insure that responsive fail-safe control systems are used.

The incinerator should be installed inside closed suitable building with good aeration and ventilation system.

The building has facilities for off-loading of wastes from transport vehicles. Auto cleaning system for trucks and

waste containers, and cool storage area…etc.

The quotation should included list of original spare parts for 7 years.

The quotation should include supervising, starting up and training of the operators and ministry of health

engineers inside/outside Kuwait.

Detailed drawings, catalogs should be included.Our normal activities generates  2-5 tons of assorted waste

materials per day which range from condemned carcasses, and other wastes all which need to be incinerated  at above

800Centigrade measured  flue exhaust gas.

medical incinerator 20kg

We are looking for small incinerators with filter (with least minimum pollution) for burning/combusting 5kg/hr,

10kg/hr, 15 kg/hr, 20kg/hr, 25kg/hr to 50kg/hr and 300kg/hr of SOLID ORGANIC DRY AND WET NON-HAZARDUOUS of any kind

(including hospital wastes) per day or per hour. Should it be with no smoke, no fumes, no odour (smell), no dust, no

emission of solid particles and with least minimum pollution (within national and international standards). Must be

environmentally healthy and acceptable with international standards. Should not be with water scrubbers. Ash contents

after burning should be 3-4%.

Please incorporate this alarm as it is a requirement.

3. In addition to the above the following instruments may also be required.

A carbon monoxide and/or oxygen meter/recorder

A smoke density meter/recorder

A gas flow meter/recorder

A solid particulate meter/recorder

Any other instrument or measurement that may be considered necessary–none

8     Location / Siting 1.    Must be sited in accordance with the relevant local municipal authority

planning scheme, the topography of the area and be compatible with premises in the neighborhood,

2. Must be housed in a suitably ventilated room.

9     Emission Limits  1.    Combustion efficiency:

Combustion efficiency (CE) shall be at least 99.00%

The Combustion efficiency is computed as follows;

C.E=                % CO2           x 100

% CO2 + CO

2. We are interested to work on Medical Incinerators in our country and looking for a company offering good

quality with reasonable prices, Initially we are interested for incinerator with a burning rate of 30 – 50 Kg/hour.The

temperature of the primary chamber shall be 800 ± 50o C

3. The secondary chamber gas residence time shall be at least 1 (one) second at 1050 ± 50o C, with 3% Oxygen in

the stack gas.

4     Opacity of the smoke must not exceed 20% Viewed from 50 meters with naked eyes

5. All the emission to the air other than steam or water vapour must be odourless and free from mist, fume and

droplets.