The utility model relates to the technical field of chemical equipment, and mainly discloses a
trickle bed reactor for continuously producing
calcium chloride solution through reaction of
hydrochloric acid and limestone, which comprises an upper cone, a
barrel and an eccentric lower cone, an acid inlet
pipe supporting grid is arranged below the acid inlet
pipe to divide the area below the acid inlet
pipe into a plurality of independent compartments, the concentration of
hydrochloric acid in the compartments is high, the
reaction speed is high, a
pulse flow reaction area is formed, and acid liquid can be uniformly distributed; the area below the cells is low in
hydrochloric acid concentration and is a trickling reaction area, so that full reaction of hydrochloric acid is facilitated; a limestone supporting
grating is arranged between the
barrel and the lower cone, and a discharging pipe and a
hydraulic control discharging valve
assembly are arranged at the bottom of the
barrel; the reactor is provided with bottom, middle and top graded exhaust ports to reduce the gas flow rate in the reactor and reduce foam entrainment; the structure obviously improves the hydrochloric acid conversion rate and the reactor productivity, and is suitable for continuous industrial production.