Catalyst adding device

The utility model provides a catalyst adding device. The catalyst adding device comprises a catalyst tank, wherein a jacket is arranged at the periphery of the catalyst tank; the lower part of one side of the jacket is communicated with a water inlet pipe, and the upper part of the other side of the jacket is communicated with a water outlet pipe; the bottom of the catalyst tank is communicated with a discharge pipe; a first mark line is arranged at 1/2 height of the catalyst tank, and a second mark line is arranged at the 2/3 height of the catalyst tank. According to the utility model, water or brine ice or the like can be injected through the jacket at the periphery of the catalyst tank to cool down the catalyst tank; a catalyst can directly flows into a hydrogenation reaction kettle from the catalyst tank through a third regulating valve on the discharge pipe, so that direct contact between the catalyst and air is avoided, and the safety and the operation flexibility are improved; as the mark lines are arranged, the adding quantity can be conveniently controlled, and the operation is enabled to be more simple and convenient.