Comprehensive utilization method for tail gas of regeneration charcoal kiln

Abstract

The invention relates to a comprehensive utilization method for tail gas of a regeneration charcoal kiln. The comprehensive utilization method comprises a waste charcoal drying procedure and a carbonization activation procedure. According to the comprehensive utilization method, tail gas produced in the carbonization activation procedure directly flows back to the waste charcoal drying procedure and is secondarily utilized, and waste charcoal is dried by virtue of heat in the tail gas, and meanwhile, dust in the tail gas can be further adsorbed by virtue of raw material waste charcoal, so thatthe flow of an activated carbon regeneration process can be shortened, the production efficiency can be improved, the equipment investment and maintenance costs can be lowered, the energy consumptionand the tail gas treatment cost can be saved, the comprehensive utilization method has a relative energy-saving effect and is environmentally friendly, and particularly, the tail gas of the regeneration charcoal kiln can be relatively efficiently and comprehensively utilized.

Description

technical field [0001] The invention relates to the technical field of utilization of activated carbon regenerated kiln tail gas, in particular to a method for comprehensive utilization of regenerated carbon kiln tail gas. Background technique [0002] According to incomplete statistics, after the adsorption of activated carbon is saturated, the renewable granular carbon accounts for about 70%. Regeneration treatment not only satisfies the recycling of resources, reduces resource consumption, but also saves a lot of costs for enterprises. [0003] At present, there are many regeneration methods for activated carbon, such as: heating regeneration method, biological regeneration method, wet oxidation method, solvent regeneration method, electrochemical regeneration method, catalytic wet oxidation method, etc. [0004] The heating regeneration method is the most widely used and industrially mature activated carbon regeneration method. During the regeneration process of activat...

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Problems solved by technology

However, the high-temperature exhaust gas will inevitably lose part of the heat energy in the heat exchange process, resulting in energy waste

In addition, the production of the factory is continuous, and the amount of high-temperature hot water formed by the heat exchanger is large. The workers in the factory do not need so much to wash and wash, and it is still wasted in the end, which does not really save energy.

Moreover, during the heat exchange process of the heat exchanger, due to the gradual rise of the water temperature, it is easy to cause the tail gas to not cool down in place, and the high temperature tail gas is passed into the bag filter, which not only affects the service life of the bag filter, but also easily Cause spontaneous combustion of the bag filter, causing accidents

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