Emission reduction system and method for gradient and cyclic utilization of waste gas of carbon industry

Abstract

The invention discloses an emission reduction system and method for gradient and cyclic utilization of waste gas of the carbon industry. By a plurality of gas delivering control units which are additionally arranged in the emission reduction system for gradient and cyclic utilization of the waste gas of the carbon industry, parameters of a plurality of adjusting valves and booster fans are adjusted reasonably, the waste gas is automatically and accurately distributed into different carbon production processes and then is utilized in a gradient manner, self-circulating utilization of the waste gas in the same production process is implemented, therefore, the waste gas used as a combustion-supporting gas is reutilized, and the effect of reducing the amount of the waste gas and emission of pollutants is achieved. For solving the problem that waste gas pollution in the carbon industry is severe, the emission reduction system and method for gradient and cyclic utilization of the waste gas of the carbon industry are provided. The emission reduction system and method for gradient and cyclic utilization of the waste gas of the carbon industry play an important role in reduction of the total amount of discharged pollutants in the waste gas and economic, reasonable and efficient utilization of latent heat of the waste gas and ingredients of the combustion-supporting gas.

Description

technical field [0001] The invention belongs to the technical field of air pollution control, and in particular relates to an emission reduction system and method for the gradient and recycling of waste gas in the carbon industry. Background technique [0002] The carbon industry is a type of heavy pollution industry, the main air pollutants are sulfur dioxide, NO x , asphalt fume and dust. Compared with other industries, not only conventional pollutants (such as SO 2 , NO x ) has a relatively high emission limit, and the unconventional pollutant asphalt fume has a complex composition, containing polycyclic aromatic hydrocarbons and benzopyrene carcinogens, which directly endanger the health of the production personnel of the carbon factory. The surrounding environment of the industry also caused serious pollution. [0003] As we all know, the total emission of pollutants in the exhaust gas is the product of the amount of exhaust gas and the emission concentration of pol...

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Problems solved by technology

[0006] In view of the serious waste gas pollution in the carbon industry and the above-mentioned problems in the prior art, the purpose of the present invention is to provide an emission reduction system and method for the gradient and recycling of waste gas in the carbon industry, which solves how to significantly reduce the emission of pollutants in the waste gas Total, economical, reasonable and efficient recycling of combustible gas components in waste gas and thermal potential of waste gas

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