Efficient reaction kettle for producing 3, 4-dichloro-5-cyanoisothiazole

The utility model discloses an efficient reaction kettle for producing 3, 4-dichloro-5-cyanoisothiazole, which comprises a reaction kettle body, the lower end of the reaction kettle body is communicated with a water outlet pipe for discharging liquid, a mounting seat is fixed outside the upper side of the reaction kettle body, and a heating pipe for heating is mounted inside the reaction kettle body; the lower drainage plate is arranged on the upper side of the filter screen and fixed in the reaction kettle body, a limiting rod installed in the reaction kettle body is arranged on the left side of the upper drainage plate, a connecting wheel is welded and fixed to the upper end of a positioning rod, and an adjusting rod installed on the right side of the reaction kettle body is arranged on the outer side of the connecting wheel; and the sealing cover is mounted on the upper side of the mounting seat. According to the efficient reaction kettle for producing 3, 4-dichloro-5-cyanoisothiazole, the lower end of the