Dezhou Haohua Qingping Phosphate Rock Co., Ltd.
Mine Type： Phosphate rock
Project Name: EPC General Contract of Deyang Haohua Qingping Phosphate Mine Filling Project
Construction time: 2022
Filling capacity: annual filling volume 450000 cubic meters
Case description: tailings plus phosphogypsum paste cementation filling, conveying distance 2000m, downward depth 200m
Project Summary
General contracting of filling system equipment of Dezhou Haohua Qingping Phosphate Mine Co., Ltd.
Case of phosphogypsum cemented filling system
Introduction
The filling system of this project can not only meet the needs of phosphogypsum or river sand as aggregate filling alone, but also meet the needs of mixed filling of the two. The phosphogypsum is transported to the aggregate stacking shed by the tramcar, loaded to the raw material bin by the loader, scattered to the feeding tape in the bin, and then transported to the paddle mixer by the transfer tape after measurement: the river sand is transported to the aggregate stacking shed of the filling station by the truck after screening, the scraper is fed to the bone silo, and unloaded to the transfer tape by the feeding tape, and transported to the paddle mixer: the bulk cement is transported to the cement near the cement silo, the cement is transported to the top of the cement silo through the soot blowing pipe, and the cement is finally transported to the paddle mixer by the screw feeder after being measured by the stable material at the bottom of the silo; the water flows from the high water tank to the GSJ600-5500-Y paddle mixer by itself. After being fully stirred, phosphogypsum, river sand (reserved), cement and water are transported to the goaf for filling operation through the HGBS150/16-500 filling industrial pump produced by Hunan Yutai.
Effectiveness
It provides a guarantee for the exploitation of 30 million high-quality resources in the deep unmined area, and the project design shaft and roadway volume is 21000m/34000 m.3, with an annual output of 1 million tons of phosphate rock, extending the service life of the mine for 16 years.
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