High-pressure reaction kettle for producing silicon fertilizer by utilizing hydrothermal chemical reaction

The invention discloses a high-pressure reaction kettle for producing silicon fertilizer by hydrothermal chemical reaction, and relates to the technical field of silicon fertilizer production and manufacture, the high-pressure reaction kettle comprises a high-pressure reaction kettle main body, a kettle cover is arranged above the high-pressure reaction kettle main body, and a hydrothermal chemical reaction cavity is arranged around the outer side of the high-pressure reaction kettle main body; a pressure release valve is arranged on the side face of the high-pressure reaction kettle body in a penetrating mode, a datum plate is fixed to the bottom in the hydrothermal chemical reaction cavity, a plurality of through holes are evenly formed in the periphery of the datum plate, a guide shaft is vertically arranged on a middle rotary disc of the datum plate, a discharge valve cover is fixed below the guide shaft, and a discharge outlet is formed in the middle of the bottom of the high-pressure reaction kettle bod