Karst-type bauxite deposits Pingguo washing ore p

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Karst-type bauxite deposits Pingguo washing ore production process optimization

Increased the embossed liner and roughness. Drum washing machine using the transition-type polyurethane lining, the extension of the ore in the mud drum washing machine washing section of the effective time of 6.59s, extended margin of 27.54%, so that the ore be more fully soak, scrub , washing efficiency is improved by 12.69%. Wash with mineral mud was reduced by 20.02%, while the crossing-type liner long service life, can reduce the cost 0.178 yuan / broom c. 3.4 heightening cylinder washing machine out of mine end ring height cylinder washing machine in dealing with high mud, clay mining index big hard to wash the ore, the groups of large granular clay is not strong, +50 mm lump ore desliming ineffective. The mine to the end ring heightened by the 100mm 200mm, we could extend the +5 Omm ore within the cylinder washing machine washing time 1015B, mineral mud will wash rate control within the scope of the quality indicators. Optimized in the process of production more than a year after the operation, process flow, washed with mineral mud, moisture content, to meet quality control index rate, recovery rate of 96% in mineral processing. Successfully solved the gridiron often blocked the process of smooth and small washing washing machine overflow trough the process running rough problems, and the optimized washing process is relatively simple and easy to operate, easy to repair and maintain the same time, made significant economic benefits, the annual production of water conservation, electricity costs 455,000 yuan; annual savings of 377,800 yuan cost of equipment, spare parts; for fine-level ore recovery from 40.34% to 96% or more, every year without increase the volume of cases, the mining of bauxite will be able to produce more 12,500 t, saving the cost of mining and 48.95 million yuan; washing the effective functioning of the system was increased by 18.33%, integrated washing process of washing capacity from pre-reform 78.99t / h, increased to 111.27t / h, washing efficiency is improved by 40.86%. 4 Conclusion extension of time and washing ore ore scrub enhanced ability to improve the washing efficiency is the main method. Bauxite ore washing Pingguo second optimization of the production process is successful, and achieved significant economic benefits, the second phase of construction of Pingguo bauxite has direct significance. Port References: 1 Sun is, gravity separation [M] Beijing: Metallurgical __. Publishing Industry Park, 19852 'Luogui Min, Liu Shen Yang of Pingguo bauxite ore washing efficiency related measures dish cable stitch store to discuss: J: Ping Tiao bauxite technology. 20OO (I1 』Mine album) l3] range transport materials, and other hard to wash Pingguo bauxite mine report [just r_ West: Aluminium Flat Tiao, l Sheng Division 1999::;: international iron ore companies seek cooperation with Chinese steel mills predicted 2001, China's iron ore imports will increase to 80 million t, representing a substantial growth in Chinese iron ore imports in 1990 reached only 14 million t. By 2000, boasted to 70o0 million t and the first quarter, China's iron ore has reached i960 million t, import growth is slowing down yet to show signs of low grade iron ore in China, and the high cost of production and development, Therefore, the dependence on imported iron ore has increased year by year, the discovery of iron ore imported in large quantities in China, the international iron ore suppliers have started to develop the Chinese market, China's iron ore imports = current growth has on the world iron ore stone supply and demand balance have a significant impact. Brazil and Australia is the world's two major suppliers of iron ore, iron ore shipments in 2000, a total of up to two 31.7 billion t, of which Brazil is l6 million t, Australia 1,57 million t, accounting for the global seaborne iron ore 70% in trade, l990, respectively, China imported iron ore from Brazil and Australia 10,304,000 39,860,000 t and t. China 2000 iron ore imports from these two countries reached 167.88 million, respectively, and 33,293,000 t t: Compared with 1990, 2000, China's imports from Brazil increased by 3 times. Imports from Australia increased by 2 times. Many international iron ore suppliers and Chinese steel companies have established close ties, the Australian mining company Hamersley was in 1987 with China National Machinery Import and Export Corporation to establish joint ventures, cooperation and development in Western Australia iron ore just that. Terman crossing mining companies and joint venture development koolyanobbing Angang Iron Company, but quit at the end of AISC the project. In addition, the Shougang mine projects in Peru and China, Peru, the joint investment projects in Taiwan. At present, China's iron ore demand growth with the Australian company BHP and Brazil's CVRD has begun to strengthen ties with the Chinese iron and steel enterprises. These two companies are seeking business alliances, well designed and Chinese companies to jointly develop the Iron Steel, Shanghai Baosteel Group Corporation is a major cooperation project may be its object. f magazine correspondent)
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