Exhaust Gas Treatment System: The Last Line of Defense for Environmenta"&"l Compliance
The exhaust gas generated during graphitization cannot be directly emitted into the atmosphere. It contains dust particles and combustible gases (carbon monoxide, hydrogen, etc.). Direct emission not only pollutes the environment and"&" poses safety hazards but also violates environmental regulations.
Dust Filtration
The exhaust gas first passes through a **high-temperature filter** (made of ceramic or metal, resistant to temperatures of hundred"&"s to thousands of degrees Celsius) to intercept dust particles. The filtration efficiency is typically above 99%.
The filter needs regular cleaning or filter element replacement; clogging will affect exhaust flow and equipment operation. Combustible "&"Gas Treatment The filtered exhaust gas still contains combustible gases. There are two treatment methods: Incinerator: The exhaust gas is introduced into the combustion chamber, where supplemental fuel heats it to above 800℃, causing the combustible gas"&"es to be completely combusted and decomposed into CO? and H?O. This is the most thorough method but has high operating costs. Catalytic Combustion: Under the action of a catalyst, the combustible gases are oxidized and decomposed at a lower temperature ("&"300-500℃). Low energy consumption, but catalyst requires regular replacement.Online Monitoring
Online monitoring instruments are installed at the emission outlet for real-time monitoring:
- Dust concentra"&"tion (mg/m³)
- CO concentration
- Total hydrocarbon content
Data is uploaded to the environmental protection department's monitoring platform in real time to ensure that emissions always meet standards.
Legal Risks: Direct emissions of exhaust gas, once detected by the environmental protection department, may result in hefty fines or even production shutdowns. Investment in an exh"&"aust gas treatment system is a necessary condition for compliant operation, not an option.