Bamboo chip steam explosion equipment and method

The invention provides bamboo chip steam explosion equipment and method. The bamboo chip steam explosion equipment comprises an equipment body and a pressure maintaining mechanism, and the pressure maintaining mechanism comprises a steam pipeline arranged in the equipment body and a valve set fixedly arranged on the steam pipeline; the positioning mechanism is movably arranged in the equipment body and is used for bearing bamboo chips; the transmission part is connected with the positioning mechanism; the transmission part is movably arranged in the equipment body; bamboo chips are placed in the positioning mechanism to be fixed, steam is supplemented into the equipment body through the steam pipeline to conduct pressure maintaining, then the valve set is controlled to enable the equipment body to conduct steam explosion, and meanwhile in the pressure maintaining and steam explosion process, the transmission part pulls the positioning mechanism to move in the equipment body; the bamboo chips are in a movable