On April 5th, the reporter learned from China Aluminium Guangxi Branch that the company created and used hydraulic backhoe positive-negative operations based on the characteristics of karst accumulation-type bauxite in Pingguo, summarizing the production practices for many years. Face mining method of mining new technology and achieved good results.
With this new mining process, the ore above the platform can be mined, and the ore below the platform can also be mined. Operators can use the ore on the work surface at the same time according to production needs, so that they can be harvested at once to the bottom plate, achieve the purpose of combining wealth with wealth, and ensure balanced and stable production. The method is highly efficient and flexible in loading, and can be loaded on a backhoe working platform or loaded on the bottom of a backhoe working platform to separate the backhoe working platform from the loading platform, thereby greatly improving the hydraulic backhoe With the efficiency of shoveling and the flexibility of backhoe mining methods, the advantage of this loading method is that the backhoe can recover two steps of ore at the same time, and the requirements for the work site are low, and the loading efficiency is extremely high. The body can be harvested on the floor at one time, which not only reduces the output of difficult-to-wash mines, but also shortens the mining time by loading a truck with a capacity of 35 tons compared to the traditional “back-to-the-basic mining method—flat loading†method. In 68 seconds, the efficiency of loading increased by 24.6%.
Due to the full thickness of the once-returned mining body in the mining process, the ore in the upper, middle and lower layers can be fully mixed and agitated in the process of shoveling, so that the average plastic index change of the associated ore of the ore-washing ore is not much different, and the ore can be washed. High-quality, average hourly washing capacity increased from the original 60.66 tons / hour to 66.42 tons / hour, an increase of 9.49%, production efficiency increased significantly. "Hydraulic backhoe positive-negative face mining method" has now been fully implemented in the mine production of the Guangxi branch and has become the main process for mining stope mining. This process has become the same as the "Scraper full-section method". The company has a new process with independent intellectual property rights, which ideally enables the effective allocation and full use of mineral resources.