Secondary Combustion Chamber

Secondary combustion chamber

Product introduction: The secondary combustion chamber is a secondary combustion device for the flue gas produced during incineration, and the harmful substances that are not burned in the flue gas are burned and destroyed in the secondary combustion chamber.

Temperature: 1100-1200℃

Process: rotary kiln + secondary combustion chamber

Scope of application: Suitable for solid waste incineration process route

Secondary combustion chamber product introduction

At present, the comprehensive solid (hazardous) waste incineration system is based on rotary kiln + secondary combustion chamber incineration technology, using advanced and mature technology at home and abroad, according to the characteristics of the materials provided by the owner to determine the process route and equipment configuration, to provide the owner with customized whole process services, to ensure that the emission of pollutants meet the current standards.

Outstanding advantage

1, the secondary combustion chamber is equipped with a burner combustion aid and a separate secondary air supply device to ensure that the flue gas is in full contact with oxygen at high temperature, and is fully burned and decomposed, so as to meet the emission requirements.

2, after the secondary combustion chamber is set up water heat exchanger and air heat exchanger, high temperature flue gas and water heat exchanger exchange into two stages of air heat exchange, improve combustion efficiency, save heat source cost.

3. The outlet temperature of the rotary kiln is 800 ~ 850 ° C. After the flue gas enters the secondary combustion chamber, secondary air is tangentially injected around the secondary combustion chamber, so that a strong vortex field is formed in the secondary combustion chamber, and the combustible components in the flue gas are fully burned.

4, the exit smoke temperature of the secondary combustion chamber is greater than 1100 ° C, the residence time of the smoke in the high temperature zone is more than 2 seconds, to ensure that the harmful components in the smoke, including dioxins, are completely decomposed, and the requirements of the state for the incineration of hazardous waste are full.

Working principle

The temperature in the secondary combustion chamber is controlled at 1000~1200℃, and the secondary air supply device can adjust the residence time of the flue gas in the secondary combustion chamber to ensure that the residence time of the flue gas is greater than 2s, and adjust the air supply volume according to the oxygen content of the flue gas at the outlet of the secondary combustion chamber. Flue gas cooling process: In order to rapidly cool the flue gas after combustion to avoid the re-generation of dioxins, water and air heat exchangers are set up after the secondary combustion chamber. After the high-temperature flue gas is exchanged with the water heat exchanger, it enters the two-stage air heat exchange, and the flue gas temperature is rapidly reduced from 1100℃ to 200℃, and enters the subsequent treatment facility. The cold water is heated from 40℃ to 65℃ after heat exchange, and can be used by users. The cold air is heated from 20℃ to 200℃ by the air heat exchanger, which improves the combustion efficiency and saves the cost of heat source.

Technical parameter

Our company has professional technology, technical personnel can be selected according to the inlet air volume, flue gas temperature and other requirements of the corresponding specifications of equipment.