Treatment method for carbon black tail gas and carbon black production system

The invention discloses a treatment method for carbon black tail gas and a carbon black production system for producing carbon black by adopting the treatment method. The treatment method comprises the following steps: dehumidifying and preheating carbon black tail gas; mixing carbon black tail gas dehumidified and preheated with oxygen-enriched air to be recycled as furnace fuel of a carbon black reactor to realize recycle utilization of carbon black tail gas. The treatment method is a novel way for recycling of carbon black tail gas, and can be used for establishment of carbon black plants and used for energy conservation transformation of carbon black plants. By adopting special techniques of dehumidifying, preheating and the like on carbon black tail gas, in combination with the oxygen-enriched carbon black production technique, the heat value of tail gas is well improved, and carbon black tail gas can be used for replacing or partially replacing fuel to produce carbon black in new technique; by adopting the treatment method, energy consumption of raw materials is reduced, load of follow-up collecting equipment is reduced by adding the oxygen-enriched technique, and the production and investment cost is reduced; besides, the pollution problem in the tail gas treatment process is reduced, and better economic benefits, as well as environmental protection benefits, are facilitated; the treatment method realizes energy conservation, consumption reduction and emission reduction, and has higher popularization value.