Device for detecting critical flow velocity and settlement rate of backfill slurry and method for detecting critical flow velocity and settlement rate of backfill slurry by using device

• Main Authors: GAN ZE, CHEN CHAO, ZHANG WEIHANG, GAN DEQING, GAO FENG, GUO JUN, WU YONGQIANG
• Format: Patent
• Language: Chinese; English
• Published: 10.10.2017
• Subjects: INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES; MEASURING; PHYSICS; TESTING

The invention discloses a device and a method for detecting critical flow velocity and settlement rate of backfill slurry, and belongs to the field of mining backfilling. A feeding pipe of the detection device is fixedly mounted on an upper part of a cylindrical barrel and is communicated with the cylindrical barrel; a laser speedometer and a scale are respectively fixed on an outer part of the cylindrical barrel; a straight angle stirring rod and a variable-frequency speed regulation motor are arranged in the cylindrical barrel in a connecting manner and are coaxial to the cylindrical barrel; a high-definition camera is supported by a hydraulic support and positioned outside the cylindrical barrel; through circumferential motion of the backfill slurry in the cylindrical barrel, the flow velocity of the slurry is detected by using the laser speedometer, and a settlement process of the backfill slurry is observed by using the high-definition camera, so that the critical flow velocity and the dynamic settlement