On the morning of December 30th, the “Study on the Highly Viscous Bauxite Ore Concentration Technology for Finished ore-crushing at the Crushing Station†jointly completed by Central South University and China Alumina Mining Co., Ltd. passed the appraisal meeting for scientific and technological achievements. The participating experts agreed that its overall technology has reached the international advanced level. Level.
The proportion of fine bauxite ore particles is large and the viscosity is strong. During the storage and loading of finished ore bins at the crushing station, the ore easily adheres to the wall of the bin and forms an arch in the bin. On the one hand, the effective utilization rate of the finished ore bins is greatly reduced; on the other hand, the weight of the loading trains on the trains is insufficient, the loading time is too long, and transportation costs are increased. In particular, at present, manual clearances are used and arches are removed. Workers are required to enter a 12-meter-teep mine ore to stand on a heap of ore and use steel brazing to treat the arches and sticky-wall ores in the ore bins. The manual processing takes a long time and labor intensity. Large, poor working environment, there are very serious safety risks. From the 1980s to the present, Chinalco has used a variety of methods such as machine claws, mechanical vibrations, high-pressure impinging gas (air cannons) and mechanical vibrations to break the arch and remove the stick, but none of them solved the problem. Professor Cao Ping of the School of Resources and Safety Engineering focused on the highly viscous characteristics of bauxite in crushing stations. The representative ore of Luoyang Aluminium ore was the main research object, and the flow laws and flow assistance mechanisms of ore in ore warehouses were studied and analyzed. The best location of the vibration source was determined, and the suspended arch vibratory arch breaking system and broken arch assisted flow scheme were put forward, and their technical parameters were determined. At the same time, the anti-stickiness of ultra-high molecular weight polyethylene and the impact resistance of steel were used. , Research and design of steel reinforced super-high molecular weight polyethylene composite anti-blocking anti-stick liner. The research results have been applied in the finished product ore warehouse of Jiagou Crushing Station of Luoyang Aluminum Mine of Chinalco Mining Industry Co., Ltd. Its anti-blocking and anti-sticking effect is good. The effective utilization rate of the finished ore warehouse capacity has been increased from 30% to 35%. 98%; At the same time, it has eliminated potential safety hazards in production and achieved significant economic and social benefits. This achievement has a very good application and promotion value in breaking the arch and sticking of large silos for storing highly viscous materials.
The proportion of fine bauxite ore particles is large and the viscosity is strong. During the storage and loading of finished ore bins at the crushing station, the ore easily adheres to the wall of the bin and forms an arch in the bin. On the one hand, the effective utilization rate of the finished ore bins is greatly reduced; on the other hand, the weight of the loading trains on the trains is insufficient, the loading time is too long, and transportation costs are increased. In particular, at present, manual clearances are used and arches are removed. Workers are required to enter a 12-meter-teep mine ore to stand on a heap of ore and use steel brazing to treat the arches and sticky-wall ores in the ore bins. The manual processing takes a long time and labor intensity. Large, poor working environment, there are very serious safety risks. From the 1980s to the present, Chinalco has used a variety of methods such as machine claws, mechanical vibrations, high-pressure impinging gas (air cannons) and mechanical vibrations to break the arch and remove the stick, but none of them solved the problem. Professor Cao Ping of the School of Resources and Safety Engineering focused on the highly viscous characteristics of bauxite in crushing stations. The representative ore of Luoyang Aluminium ore was the main research object, and the flow laws and flow assistance mechanisms of ore in ore warehouses were studied and analyzed. The best location of the vibration source was determined, and the suspended arch vibratory arch breaking system and broken arch assisted flow scheme were put forward, and their technical parameters were determined. At the same time, the anti-stickiness of ultra-high molecular weight polyethylene and the impact resistance of steel were used. , Research and design of steel reinforced super-high molecular weight polyethylene composite anti-blocking anti-stick liner. The research results have been applied in the finished product ore warehouse of Jiagou Crushing Station of Luoyang Aluminum Mine of Chinalco Mining Industry Co., Ltd. Its anti-blocking and anti-sticking effect is good. The effective utilization rate of the finished ore warehouse capacity has been increased from 30% to 35%. 98%; At the same time, it has eliminated potential safety hazards in production and achieved significant economic and social benefits. This achievement has a very good application and promotion value in breaking the arch and sticking of large silos for storing highly viscous materials.