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Based on the principle of magnetic objects attract each other and solid with different proportion has different settling velocity in water, the iron ore particles will be select out and the impurities will be poured with the tailing.The main iron ore separation machinery is the iron ore dressing machine which consists of iron ore high-frequency screen, iron ore spiral classifier, iron ore magnetic separation machine and iron ore flotation machine.

And it also clearly put forward the requirements of cleaner production to the enterprise production.Secondly, the yield is low, and energy consumption is high. The comprehensive performance disadvantage of the traditional Raymond mill in this aspect is increasingly prominent. In recent years, the state has the increasing stringent requirements on energy saving and environmental protection.

Each hydrocyclone preferably has an axial chamber length of about L, a central tubular vortex finder with an inside diameter of about D2 depending into the shell from one end, and an exit orifice with an inside diameter D4 located in the other end axially opposite the vortex finder with an entrance thereto tapering at a 60° included angle α from an upwardly facing axial shoulder having a diameter D. One preferred hydrocyclone (a 20" hydrocyclone) has the following dimensions: D1 --20"; L--24"; D2 --8"; D4 --3.5 in2. Another preferred hydrocyclone (a 14" hydrocyclone) has the following dimensions: D1 --14"; L--22"; D2 --6"; D4 --2.5"; D--8.125 in2.Preferred hydrocyclones 122a and 122b used in this one of the disclosed processes each have a cylindrical shell with an inside diameter D1 and a pair of tangential inlets for causing the feedstock to travel in a circular path under substantially constant acceleration therein.5"; and A1 --3.25"; D--5. Each inlet has a cross-sectional area A1.25"; and A1 --6.

montalban concrete and asphalt inc.

After that, the first drive motor 15 is activated again, and the washing work is performed for about 30 minutes.After about a second, the aggregate container 14 is tilted greatly and washing water is applied to the sieve 30. Then, the cleaning water is supplied again from the water supply pipe 19. The tilt position should be about the same as the time.Next, the second drive motor 16 which should perform the second washing is reversely operated to raise the aggregate storage body 14, and the axial center of the aggregate storage body 14 starts the first washing.

SearchHomeLog in14th International Congress for Applied Mineralogy (ICAM2019)DownloadbookPDFEPUBInternational Congress on Applied MineralogyICAM 2019: 14th International Congress for Applied Mineralogy (ICAM2019)pp 179-182 |Cite as.

This medical and pharmaceutical service is a key piece of the paternalist programme [12]. More specifically, the first contribution (of three) of the mining sector to SD is to improve health, wellbeing, and quality of life. This scientific controversy provided the foundation for the institutional and technical measures implemented to address the problem [105]. Corporate Social Responsibility (CSR) is the perfect tool to achieve this objective [108]. As previously mentioned, from 1888, the RTLC reorganised the Health Department in order, apparently, to improve the wellbeing of the workers. Significantly, a study about the Rio Tinto Group, the successor firm of the RTCL, shows that its CSR agenda is focused (among other elements) on services traditionally provided by the governments of developing countries, as providers of health services [109].From a social perspective, smelter smoke seriously affected the community’s and workers´ health and gave rise to an intense debate. However, after the massacre, the Company really wanted to avoid regulation and to fully control the mining community´s health. Mining sustainability, from the point of view of the industry, required new principles and practices, and implies special attention to occupational health, safety police, and medical services [107]. Today, mining companies feel that the old paternalism could have promoted an undesirable and “unhealthy dependent relationship” with the community [106].

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