Energy-gathering ultrasonic scrubbing device, and intensive desliming system for argillaceous sandstone uranium ore

An intensive desliming system for argillaceous sandstone uranium ore, comprising an energy-gathering ultrasonic scrubbing device, a multiphase-flow swirling grading device and a high-frequency linear vibration dewatering device, wherein

• the energy-gathering ultrasonic scrubbing device comprises a scrubbing cylinder, a reverse stirring system, an energy-gathering ultrasonic vibrator and a slurry storage tank, the scrubbing cylinder is provided with a feed hopper and an overflow residue discharge pipe;
• the reverse stirring system is arranged inside the scrubbing cylinder and comprises a rotating shaft and at least four layers of reverse stirring blade structures arranged in an axial direction of the rotating shaft, each layer of reverse stirring blade structure comprises several blades arranged in a circumferential direction of the rotating shaft, an included angle between each of the blades and the rotating shaft is not greater than 45°, and inclination directions of blades of two adjacent layers of reverse stirring blade structures relative to the rotating shaft are opposite;
• the energy-gathering ultrasonic vibrator comprises an ultrasonic transducer and an energy-gathering vibration transmitting rod, the ultrasonic transducer is fixed outside the scrubbing cylinder, and the energy-gathering vibration transmitting rod is connected to the ultrasonic transducer and located inside the scrubbing cylinder;
• the energy-gathering vibration transmitting rod is provided with several spherical recesses at intervals in an axial direction of the energy-gathering vibration transmitting rod;
• and the slurry storage tank is connected to the overflow residue discharge pipe, and a discharge port of the overflow residue discharge pipe is directly guided to the slurry storage tank;
• the slurry storage tank is arranged at a bottom of the scrubbing cylinder, a cleaning discharge port is arranged at the bottom of the scrubbing cylinder as a shutdown discharge cleaning and draining channel, and a gate valve in a normally closed state is arranged at the bottom of the scrubbing cylinder;
• the slurry storage tank is provided with a clean water pipe for injecting clean water;
• the slurry storage tank is further internally provided with a slurry uniform-mixing device;
• and a slurry discharge port and a high-pressure centrifugal slurry pump are arranged at a bottom of the slurry storage tank, and slurry material is lifted and discharged through the high-pressure centrifugal slurry pump;
• the multiphase-flow swirling grading device comprises a swirler;
• the high-frequency linear vibration dewatering device comprises a high-frequency linear vibration sieving machine and a clean water tank;
• a slurry inlet of the swirler is connected to a slurry discharge port of a slurry storage tank, mixed slurry material from the slurry storage tank is subjected to particle diameter separation by a swirling centrifugal power flow field in the swirler, a mixture with a smaller particle diameter is discharged from an overflow port at an upper end of the swirler, and a mixture with a larger particle diameter is guided and discharged from a bottom flow port of the swirler to the high-frequency linear vibration sieving machine for sand particle dewatering;
• and oversized material on the high-frequency linear vibration sieving machine is finished sand and gravel material, and water generated under a sieve is discharged to the clean water tank.