Apparatus for precisely controlling the amount of ice pellets discharged and method of use thereof

Abstract

The application discloses a device for precisely controlling ice particle discharging amount and a use method thereof, and relates to the technical fields of abrasive gas jet and material conveying. The device comprises an ice particle storage bin and an ice particle discharging mechanism. The ice particle storage bin is provided with a bin body and a heat preservation cover from inside to outside. An ice storage chamber is formed in the bin body. A pre-cooling chamber is formed between the bin body and the heat preservation cover. An ice particle inlet is arranged on the bin body. An ice particle outlet is arranged at the bottom end of the bin body. A liquid nitrogen temperature control cavity is formed at the bottom of the heat preservation cover and is communicated with the pre-cooling chamber. The ice particle discharging mechanism is provided with a shell fixed in the liquid nitrogen temperature control cavity, a rotating part arranged in the shell, and a driving motor for driving the rotating part. The rotating speed of the driving motor is adjustable. A lower ice hole communicated with the ice particle outlet and a falling ice hole arranged in a staggered mode with the lower ice hole are arranged on the shell. In this way, the rotating speed of the rotating part is adjusted by controlling the rotating speed of the driving motor, the ice particle discharging amount is controlled, and the precision of the ice particle abrasive mixed conveying amount is improved.

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