Voc tail gas treatment equipment For Lost Foam Casting

Voc tail gas treatment equipment For Lost Foam Casting

The VOC Exhaust Gas Treatment System for Lost Foam Casting is a high-efficiency
solution designed to manage volatile organic compounds generated during lost
foam casting processes. Engineered for industrial foundries, this system
effectively reduces VOC emissions, ensuring compliance with environmental
regulations while maintaining a safe and clean working environment.

Processing air volume: 10000/20000/30000m ³/ h;

Combined system of adsorption concentration desorption and catalytic combustion
equipment: 1 adsorption bed; Carbon consumption: 1.5 cubic meters;

Activated carbon adsorption bed: The main material is Q235, made of 1.5 thick
steel plate, and the inner plate is 1.2 galvanized plate, containing 5cm
silicate rock insulation;

CO catalytic combustion furnace: The main material of the shell is Q235, with a
thickness of 2.0 and 8 inner plates. It is filled with 10CM silicate rock for
insulation treatment. The heating tube fins are made of 304 stainless steel,
with 30 heating tubes and a total power of 60KW. Plate heat exchanger;

Main air centrifugal fan with frequency conversion: 4-72-6C-15KW, including
15KW frequency converter;

Desorption centrifugal fan: 9-19-4C 2.2KW;

Electric control system: intelligent touch screen PLC automatic control.

Main functions and advantages

Activated carbon adsorption system: The exhaust gas enters the activated carbon
adsorber for adsorption, and after passing through the adsorber, it is
discharged into clean air that meets the emission standards.

Desorption system: When the adsorber is saturated, it will enter a desorption
state and use hot air to desorb the organic solvents in the adsorber,
discharging high concentration waste gas into the CO device.

Catalytic combustion system: High concentration organic waste gas is first
heated up to the CO starting temperature through a heat exchanger. If the
temperature cannot be reached, the electric heating method is turned on to
raise the temperature to the starting temperature. After the waste gas enters
the catalytic combustion chamber, it starts combustion and purification on the
catalyst. The temperature of the emitted flue gas can reach 400-500 ℃. When
the concentration of organic waste gas reaches a certain level, it can maintain
spontaneous combustion in the catalytic bed without external heating, At this
point, the electric heating can be stopped.

The flue gas after combustion is preheated by a heat exchanger and enters the
catalytic bed for combustion. The cooled flue gas is then exchanged with fresh
air to control the temperature of the desorbed gas at around 120 ℃, and then
discharged into the chimney through the exhaust valve. After desorption,
proceed to the next cycle.

More: https://www.gnepc.com/products/

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