Hard carbon black reaction furnace

Abstract

The invention provides a hard carbon black reaction furnace. The hard carbon black reaction furnace comprises a burner, a combustion chamber, a throat pipe section, a reaction section, a reaction termination quenching section and a carbon black flue gas retention section which are connected in sequence. Through reasonable design of the length of a first straight pipe section of the combustion chamber, fuel is fully combusted, so the fuel is saved; the throat pipe section is designed with a double-row raw material oil gun, so raw materials are sprayed into a reaction furnace to be atomized better; by adoption of inclined plane reducing in the reaction section, the carbon black flue gas flow of a reaction is accelerated again, and a shearing force and the degree of cracking are increased, sothe reaction is uniform and violent, and produced carbon black particles are more uniform; the reaction termination quenching section is combined with the reaction section to expand again, so the structural degree of carbon black before the reaction is terminated is higher, and collision of crystal nucleus is more violent; meanwhile, sufficient water vapor and carbon black flue gas mixing space is provided, so the reaction can be rapidly terminated. The hard carbon black reaction furnace provided by the invention has the advantages of capability of producing and processing a plurality of varieties of carbon black series, high production capacity, stable quality, low consumption, simple and highly-efficient operation, etc., and can reach a carbon black production capacity of 6W tons per year.

Description

technical field

[0001] The invention relates to a carbon black reaction furnace, in particular to a hard carbon black reaction furnace. Background technique

[0002] With the continuous progress and development of modern industry, the domestic carbon black industry continues to grow. In order to meet the growing domestic demand for rubber and tires, the production capacity of carbon black has increased significantly. Although there are a variety of processes for obtaining carbon black, the most commonly used is the furnace carbon black production process, and the design of the carbon black reaction furnace in the furnace carbon black production process is the core of carbon black production. At present, the hard carbon black reaction furnace with an annual output of 40,000 tons is commonly used in China. Its disadvantages are: the complete combustion of the combustion chamber is not ideal, resulting in high production consumption, uneven carbon black particles produced, and ...

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