LQ-SWI Solid waste incineration furnaces

Applications：

General waste, industrial waste, medical waste, special waste, etc.

Working Principle：

Feeding and Pre-treatment: Solid waste is introduced into the incinerator's feed opening, where it is manually batched and quantitatively fed into the furnace body. Preliminary treatment, such as sorting and shredding, typically occurs in the pre-treatment area to reduce the volume and enhance the efficiency of incineration.

Combustion Process: The waste enters the combustion chamber for burning. Inside, a combustion zone is set up, and a small section of the combustion chamber is dedicated to the burning process. Here, the waste comes into contact with heated air, ignited by a temperature-controlled combustion machine. Adhering to the principles of the three T's of temperature, time, and turbulence, the waste undergoes complete oxidation, pyrolysis, and combustion within the furnace body. The resulting flue gas then enters a secondary combustion chamber, where it undergoes high-temperature combustion. The flue gas is subjected to temperatures exceeding 850°C for at least 2 seconds, ensuring the complete incineration of harmful gases and the thorough decomposition of harmful pathogens. The organic matter in the waste combusts, generating heat and releasing carbon dioxide and water vapor.

Heat Recovery: The heat generated from combustion can be converted into steam or hot water for applications such as power generation or heating. Incinerators are typically equipped with heat exchangers or boilers that utilize the high-temperature flue gas to heat the working medium.

Residue Treatment: After combustion, the waste is transformed into residues within the incinerator. These residues, a mixture of ash and slag, can be processed and treated for subsequent utilization or safe disposal.

Gas Treatment Process Diagram

Phase One:

The high-temperature gases expelled from the secondary combustion chamber are rapidly cooled from 850°C to 180°C within 2 seconds in the gas quench tower, effectively bypassing the conditions for dioxin re-synthesis. Concurrently, a specialized spray nozzle atomizes the gases, facilitating simultaneous desulfurization and denitrification.

Phase Two:

The gases, after being cooled and desulfurized, pass through a medium-efficiency dust collector and cyclone dust removal system, effectively separating particulate matter and large particles generated during the neutralization process.

Phase Three:

The exhaust gases then proceed through a high-temperature pulse jet bag filter, which effectively captures residual dust, fine particles, and heavy metals, including dioxins, adhering to the filter, ensuring that the treated exhaust meets the required standards.

Phase Four:

The gases, after being precisely filtered by the bag filter, are propelled by a centrifugal fan through the emission stack, achieving compliant discharge standards.

Equipment selection

Note: The parameters in the table are for reference only, if there are special requirements, they can be designed according to the actual situation.

Combustion Process Flow

1. The incineration process begins with the sorted waste being fed into the combustion chamber in batches at scheduled times.

2. By regulating the air intake, the waste undergoes a series of processes within the primary combustion chamber, including drying, pyrolysis, and complete combustion. Ash and small particles that cannot be decomposed are expelled through the ash removal system.

3. The flue gases produced during the drying and pyrolysis stages are then directed into the secondary combustion chamber.

4. The combustible gases are subjected to temperatures exceeding 850 degrees Celsius for at least 2 seconds to ensure thorough decomposition before being routed to subsequent treatment processes.

Gas Treatment Process Diagram

Phase One:

The high-temperature gases expelled from the secondary combustion chamber are rapidly cooled from 850°C to 180°C within 2 seconds in the gas quench tower, effectively bypassing the conditions for dioxin re-synthesis. Concurrently, a specialized spray nozzle atomizes the gases, facilitating simultaneous desulfurization and denitrification.

Phase Two:

The gases, after being cooled and desulfurized, pass through a medium-efficiency dust collector and cyclone dust removal system, effectively separating particulate matter and large particles generated during the neutralization process.

Phase Three:

The exhaust gases then proceed through a high-temperature pulse jet bag filter, which effectively captures residual dust, fine particles, and heavy metals, including dioxins, adhering to the filter, ensuring that the treated exhaust meets the required standards.

Phase Four:

The gases, after being precisely filtered by the bag filter, are propelled by a centrifugal fan through the emission stack, achieving compliant discharge standards.