Preparation process of pigment carbon black, and combustion furnace thereof

Abstract

The invention relates to the technical field of carbon black preparation, and specifically relates to a preparation process of pigment carbon black and a combustion furnace thereof. For improving the performance of the pigment carbon black, the invention provides the pigment carbon black preparation process and the combustion furnace thereof. The combustion furnace comprises a combustion chamber (3), a throat pipe section (4), a firing section (6), a quenching section (7), and a staying section (9). One end of the combustion chamber (3) is provided with a hot air nozzle (2). One end of the hot air nozzle (2) is provided with a fuel gun (1). A hot air port (10) is provided on a side of the hot air nozzle (2). A raw material gun (5) is arranged on a side of the throat pipe section (4). A quenching water gun (8) is arranged on a side of the quenching section (7). The combustion chamber (3) is connected with the throat pipe section (4). The throat pipe section (4) is connected with the firing section (6). The firing section (6) is connected with the quenching section (7). The quenching section (7) is connected with the staying section (9). With the process and the furnace provided by the invention, pigment carbon black products with characteristics of small particle size, large specific surface area, high iodine adsorption value, and the like can be prepared.

Description

technical field [0001] The invention relates to the technical field of carbon black preparation, in particular to a preparation process of pigment carbon black and a combustion furnace thereof. Background technique [0002] Pigment carbon black is widely used as coloring pigment in ink, paint, paint, cosmetics, plastic, rubber, textile and other products. The preparation methods of pigment carbon black are generally: contact method, oil furnace method, gas furnace method and other production. Pigment carbon black can generally be used to color items well. Pigment carbon black can be selected according to coloring characteristics or physical and chemical properties. The selection of carbon black for coloring basically depends on the blackness that the finished product must achieve. Often affect the performance of the product. For carbon black, pigment carbon black mainly includes particle size, iodine absorption value, DBP absorption value, tinting strength, PH value, addit...

AI Technical Summary

Problems solved by technology

Practice has found that the iodine absorption value of pigment carbon black produced by the above-mentioned traditional oil furnace method is about 107, the dyeing strength is 110, and the DBP absorption value is about 125.

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