Lactose hydrogenation reduction pressure reaction kettle

The invention relates to the technical field of reaction kettles, in particular to a lactose hydrogenation reduction pressure reaction kettle which comprises a bearing base, a supporting frame arranged on the bearing base and a reaction kettle body erected on the bearing base and fixed in the supporting frame. An adjusting bin is arranged above the reaction kettle, a communicating pipeline is arranged between the adjusting bin and the reaction kettle, and a micrometering valve is arranged on the side edge of the communicating pipeline and is used for adjusting a communicating gap of the communicating pipeline; a pressure adjusting device is arranged at the top of the supporting frame, a first-stage pressure adjusting device and a second-stage pressure adjusting device are arranged on the pressure adjusting device, and the first-stage pressure adjusting device is arranged on the side edge of the pressure adjusting device and directly connected with the reaction kettle. And the secondary pressure regulator is a