Reaction furnace for improving yield of hydrogen fluoride

A reaction furnace capable of improving hydrogen fluoride yield relates to the technical field of hydrogen fluoride reaction furnaces, a rotating shaft B (25) arranged on a motor (2) extends into one end of a U-shaped groove (14), the end of the rotating shaft B (25) is sleeved with a gear B (26), the gear B (26) is located between a gear A (24) and an inner gear ring (23) and is meshed with the gear A (24) and the inner gear ring (23) at the same time, a spiral scraper (15) is arranged between a rotating ring A (18) and a rotating ring B (22), and the spiral scraper (15) is connected with the rotating shaft B (25). A fan-shaped scraping sheet (16) is arranged on each scraping plate (20); reaction materials are added into the U-shaped groove through the feeding pipe, and the rotating shaft B drives the spiral scraping plate and the fan-shaped scraping plate to rotate in opposite directions, so that the materials in the U-shaped groove form circulation and are fully stirred and mixed, and the purposes of thoro