Abstract: A cartridge preprocessing system applied to an automated molecular diagnostics instrument is provided. The cartridge preprocessing system includes a piercing device and a cleaning device. The piercing device includes a drive assembly and a piercing member, and the drive assembly is configured to control the piercing member to alternately move to a piercing station and a cleaning station. The piercing member is configured to pierce a barrier film of a cartridge that moves to the piercing station, and the cleaning device is configured to clean the piercing member that moves to the cleaning station.

Abstract: A method of improving grinding, grading and capacity of ores by reducing a fineness content ratio ?0 in settled ores includes providing a two-stage ore grinding and grading system including a first fully closed circuit including a grinder and a hydrocyclone, or a two-stage ore grinding and grading system including a first-stage open circuit, and controlling parameters for ore grinding and grading as follows: controlling a dc an value of a point B on a separation cone of a second-stage ?500 mm hydrocyclone; controlling a fineness content ratio ?0 in settled ores; controlling a second-stage ore grinding and grading load Q2; and acquiring a first-stage grinding, grading and capacity Q of ores.