Carbon black reactor with interchangeable refractory ceramic pro

Details Carbon black reactor with interchangeable refractory ceramic pro Carbon black reactor with interchangeable refractory ceramic pro

1978-11-03

1980-09-02

Scovronek, Joseph

Chemical apparatus and process disinfecting, deodorizing, preser

Chemical reactor

Pigment or carbon black producer

110338, 423450, C09C 150

Patent

active

042206243

ABSTRACT:
In the usual elongated carbon black furnace which is provided at one end with a combustion gas entry section, usually of diameter larger than the remainder of the reactor, in lieu of the usual entry port or ports providing hot combustion gases with which to decompose the make oil or gas to carbon black, there are provided independent, double-entry port or pipes. At each double entry there is an outer port and an inner port or pipe. Usually, the pipe approaches the enlarged section or precombustion chamber somewhat tangentially and at a substantial right angle to the longitudinal axis of the elongated reactor or furnace. Thus, viewing the furnace end-on, the outer port or entry will spew its fluid near and onto the walls of the precombustion chamber while the inner port or entry will deliver its gases to a point nearer the longitudinal axis. By feeding so as to obtain a blanket of relatively cool gas adjacent the walls of the precombustion chamber by means of the outer port and a relatively much hotter gas through the inner port, the walls of the chamber are protected while at the same time the make oil or gas can be subjected immediately to a great deal more heat and higher temperature such that higher yields of carbon black are obtained. A novel furnace precombustion zone structure is disclosed.
A combination of ceramic pieces to form a protection for the metallic walls of a furnace is presented. For the precombustion chamber or section, the pieces have been so conceived as to permit upstream and downstream faces of the inner walls as well as the walls connecting them to be tiled using for each face only two different tiles and for each wall only two different tiles, to permit tangential entry of the gases into the precombustion chamber while imparting a rotational motion to said gases and maintaining said blanket of relatively cool gas adjacent to walls of the precombustion chamber.

REFERENCES:
patent: 2731466 (1956-01-01), Heffner
patent: 2839825 (1958-06-01), Edwards, Jr. et al.
patent: 2852346 (1958-09-01), Austin
patent: 2865717 (1958-12-01), Krejci
patent: 2903876 (1959-09-01), Nannini
patent: 3619138 (1971-11-01), Gunnell
patent: 3681031 (1972-08-01), Johnson
patent: 3986836 (1976-10-01), Cheng

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