Medium-coarse sand backfilling launder

• Main Authors: MENG YAKUN, WANG XIAN, DU XINSHENG, LI SHUAI, SONG BINGYANG, ZHU XIAOWEN, XIAO YANG, CHEN BO
• Format: Patent
• Language: Chinese; English
• Published: 17.05.2024
• Subjects: BLASTING; DREDGING; ENGINEERING ELEMENTS AND UNITS; FIXED CONSTRUCTIONS; FOUNDATIONS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEATING; HYDRAULIC ENGINEERING; JOINTS OR FITTINGS FOR PIPES; LIGHTING; MEANS FOR THERMAL INSULATION IN GENERAL; MECHANICAL ENGINEERING; PIPES; SOIL SHIFTING; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; THERMAL INSULATION IN GENERAL; WEAPONS

The utility model provides a medium-coarse sand backfilling launder, which belongs to the technical field of building construction and comprises a feeding hopper which is of a funnel structure with an upper opening. A discharging opening is formed in the front side of the feeding hopper, a conveying channel extending backwards is fixedly arranged at the discharging opening, the conveying channel extends in the direction away from the feeding hopper, the conveying channel is communicated with the interior of the feeding hopper, and a swing block is rotationally arranged in the feeding hopper and located at the discharging opening; a swing mechanism is arranged at the bottom of the feeding hopper and connected with the swing block. Operators stand on the two sides of the feeding hopper to add coarse sand to the feeding hopper, under the action of gravity, the coarse sand can enter the bottom of the pipeline along with the conveying channel, so that the bottom of the pipeline is backfilled with the coarse sand,