Method and device for processing nuclear waste in deep geological nuclear depositor mode

The invention provides a method and a device for processing nuclear waste in a deep geological nuclear depositor mode and relates to a nuclear waste processing method and a device. Problems of high processing cost of nuclear waste and serious harm to processing workers in the prior art are solved. The device is formed by a raw material transport device, a raw material stirring pot, a liquid-state waste conveying pipeline, an additive case, a powder-shaped waste conveyor, a liquid supplying pump, a liquid supplying manifold, an output manifold, a mixed liquid conveying pipeline, a high-pressure injecting pump, a high-pressure pipeline and a well mouth sealing device. The method comprises steps of 1) drilling; 2) building granitic layer seams; 3) preparing raw materials; and 4) using the processing device to injecting sand-carrying feed liquid into the underground granitic layer seams from the high-voltage injecting pump so as to solidify the granitic layer seams. The method and the device are advantageous in that the processing cost is low; processing efficiency is high; the device is simple in structure, highly practical, safe and reliable; and pollution on and damage to the environment imposed by the nuclear waste are effectively reduced.