Carbon black particle drying system and process

Abstract

The invention provides a carbon black particle drying system and process. The carbon black particle drying system comprises a rotary drying device, a conveying winnowing device and a tail gas treatment device. The problems that in the prior art, tail gas treatment is poor, the environment is prone to being polluted, equipment is seriously corroded, the heat energy utilization rate is low, and finished products are seriously broken are effectively solved. According to the carbon black particle drying system and process, the rotary drying device is adopted for indirectly drying carbon black particles, so that crushing and pulverization in the material drying process are reduced; and crushing and pulverization in the transferring process are reduced through the special conveying winnowing device, the particle size requirement of products is guaranteed through winnowing, and the rate of the finished products after drying is high. According to the carbon black particle drying system and process, steam serves as a heat source, air or inert gas serves as moisture carrying gas, a drying medium is environment-friendly, the problem that in the prior art, smoke corrodes the equipment is fundamentally solved, and tail gas emission is reduced. In the whole production process, the heat energy utilization rate and drying efficiency are high, and production cost is reduced.

Description

technical field [0001] The invention relates to the field of carbon black production, in particular to a carbon black particle drying system and process. Background technique [0002] In the existing carbon black production process, it is necessary to add water to the powdered carbon black and then granulate it with a granulator before drying and heating to remove the moisture in the carbon black particles before it can be used as a finished product. To dry the carbon black particles, it is necessary to complete the carbon black particles The moisture content changes from about 50% to about 0.5%. [0003] In the prior art, carbon black tail gas, which is the by-product process tail gas in the production process of carbon black reaction, is often used as fuel, and the flue gas at a certain temperature generated by the combustion of the fuel is directly used as a drying heat medium to dry carbon black particles. In this production technology, the drying medium formed by burne...

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Problems solved by technology

[0004] In view of the above-mentioned shortcomings of the prior art, the purpose of the present invention is to solve the problems in the prior art of poor tail gas treatment, easy pollution of the environment, serious corrosion of equipment, low heat energy utilization rate and serious breakage of finished products, and provides a charcoal The black particle drying system and process solves the problems of corroding equipment and polluting the environment by using clean and green drying media and reducing pollution. Air separation ensures the particle size requirements of the product, and the heat energy utilization rate and drying efficiency are high in the entire production, which reduces the production cost

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