The basic principle of the design of the domestic waste incinerator is to make the waste burn completely according to the prescribed incineration temperature and sufficient residence time in the furnace.This requires the selection of appropriate furnace bed, reasonable design of the shape and size of the furnace, increase the chance of waste and oxygen contact, make garbage in the incineration process, water gas easy to evaporate, accelerate combustion, and control the flow rate and direction of air and combustion gas, so that the gas can be evenly mixed.
In selecting the type of furnace, it should first be considered whether the type of combustion (controlled or peroxide-combustion) of the selected type is suitable for the properties of all wastes to be treated.Generally speaking, peroxide-combustion incinerators are more suitable for incinerating non-flammable wastes or wastes with stable combustion properties, such as wood chips, garbage, paper, etc.The gas-controlled incinerator is more suitable for burning inflammable wastes, such as plastics, rubber and polymer petrochemical wastes.Mechanical grate incinerator is suitable for municipal waste treatment, while rotary kiln incinerator is suitable for hazardous waste treatment.
In addition, factors such as combustion chamber structure, air flow mode, air supply mode, stirring performance, whether short flow or bottom ash is easily disturbed should be considered.The direction of airflow in an incinerator depends on the type of incinerator and the characteristics of the waste.The orientation of multichamber incinerators is the same as that of fluidized bed incinerators.
The incinerator can be cylindrical, square or rectangular.The design scheme of cyclone and spiral combustion chamber incinerator is cylindrical.Although the design of liquid jet incinerator, waste gas incinerator and multi-combustion chamber incinerator can be square or rectangular, the cylindrical combustion chamber is still a better structure.It is often difficult to design fire-resistant tops as squares or rectangles.The secondary combustion Chambers of large incinerators are mostly vertical cylinders or cuboids with emergency discharge chimneys installed at the top, while the secondary combustion
Chambers of medium and small incinerators are mostly horizontal cylinders.
Telephone: 0510-80731188