Double-cylinder coating type thermal cracking reaction device

The invention relates to destructive distillation technologies and discloses a double-cylinder coating type thermal cracking reaction device. Three double-cylinder coating mechanism assemblies are mounted in a furnace body (4). A double-cylinder coating component is distributed between two separation trays; the component comprises three groups of scrapers (12)/double cylinders (7) and is connected with a spindle (1) through upper and lower brackets (3) and a key pin (13). The scrapers (12) are mounted on scraper supporting racks (11) and are respectively connected with the upper and lower brackets (3) and limiting rollers (10) through two pins (9); and the double cylinders (7) are respectively connected with a double-cylinder swing bracket (5) and the upper and lower brackets (3) through a roller shaft (8). According to the device disclosed by the invention, the problem that high-viscosity oil or wax produced by a thermal cracking reactor in the cracking process is totally attached to a heating carrier so as