Activated carbon production technology

The invention relates to an activated carbon production technology in the field of activated carbon, the technology takes a fuel gas activating oven as an activating oven, adopts a clean and closed type carbonization oven in production for multi-layered purification treatment to carbonized exhaust gas, and further can be used for effectively recycling wood tar and wood vinegar included in exhaust gas, and residual exhaust gas after recycling can be introduced to the oven for carbonization and heat preservation, so that the purposes of low cost, quick temperature rise, easiness of control, complete combustion, stable heat preservation, temperature balance inside the oven, zero emission of smog, sulfenyl and nitro elements are achieved.