Novel process for preparing high-performance desulfurizing agent by integrating dry crushing and digestion

The invention discloses a novel process for preparing a high-performance desulfurizing agent by integrating dry crushing and digestion, and belongs to the technical field of dry preparation of calcium-based desulfurizing agents. Steam is used as a power source, and a steam kinetic energy mill is used for crushing and digesting quick lime. The method specifically comprises the following steps of: 1) accelerating steam through a nozzle to form supersonic airflow to enter a steam kinetic energy mill crushing cavity; 2) synchronously adding quick lime into the steam kinetic energy mill; 3) accelerating the particles under the action of supersonic speed, and enabling the accelerated particles to collide with each other in the center of a fluidized bed to realize crushing digestion; 4) enablingthe crushed and digested materials to pass through a grader under the action of negative pressure to realize separation of coarse powder and fine powder, returning the coarse powder to the steam kinetic energy mill crushing c