METHOD AND DEVICE FOR PRODUCING CARBON BLACK

摘要

The present invention relates to a method and a device for producing carbon black (fine-dispersion industrial-grade carbon black) used in various technical branches, such as the production of elastomer sealing devices, rubber articles or dyes. The method involves submitting the carbon-containing raw material to a pyrolysis process, cooling down the gas and carbon-black mixture using the cooled portion of said mixture as a cooling agent and separating the finished product. The gas and carbon black mixture for cooling is sampled at the outlet of the cooling area and, once cooled, is supplied in a counter-flow direction at a certain angle relative to the main flow. The apparatus for producing carbon black includes a combustion chamber (1) into which fuel and air are supplied as well as a reaction chamber (2) with means for supplying the raw material. The cooling area of the reactor comprises hollow deflectors (4) having aerodynamic profiles and connected together by hollow assembly members (7). The inner volumes of the deflectors (4) are connected by ducts to a cooling agent supply system. The side walls of the deflectors (4) include openings (5) through which the cooling agent is fed into the cooling area. Discharge channels (6) for sampling a portion of the cooled reaction products are provided at the outlet of the cooling area, wherein said portion is supplied for cooling to a heat exchanger in order to produce e.g. high-temperature steam and is further used as a cooling agent.