Distilling boiler, more especially for the distillation of heavy hydro-carbons of the petroleum, lignite tar and coal tar industry and the like

摘要

142,376. Steinschneider, L. Aug. 14, 1919. Retort furnaces.-In apparatus for distilling heavy hydrocarbons such as petroleum, lignite tar, and coal tar, and for producing coke, a boiler which is not exposed to the greatest heat of the flue gases is formed with a number of extensions forming retorts on which the fire gases play, the dimensions of the boiler and retorts being such that the solid residue to be coked resulting from the distillation of a charge which fills the whole apparatus is just sufficient to fill the retorts. In the arrangement shown in Fig. 5, the retorts e, which are preferably of conical form as shown. are attached to the bottom of the boiler a by horizontal branches, and are furnished with cleaning doors f1 above the discharge doors f below. In another form, the retorts are attached directly to the boiler and cleaned from within it. Brickwork n shields the boiler from the direct heat of the fire gases, but it may be heated by gases escaping to the main flue. The portions of the retorts e in the fire-gas chamber are preferably connected to the upper part by flanges, so as to be easily detached for repair. In a modification, each retort is connected to a separate boiler chamber with pipes and valves for filling and leading away gas, an arrangement of dampers being provided for regulating the supply of heat to the various retorts,