After comparison of the various test procedures, the most ideal process for this pyrite cinder is the two-stage magnetic separation-spiral chute, and the optimum process conditions are determined through experiments, and the Fe grade is 62.63%. The cumulative recovery was 78.08%, and the S content was reduced to 0.23%. The following table shows the composition analysis of iron concentrate. The mass quality flow chart is shown in Figure 1. In addition, a better index can be obtained by using spiral chute-magnetic separation and magnetic separation-reverse flotation. Table 1 Analysis of composition of two-stage magnetic separation-spiral chute iron concentrate (%) product name Fe S SiO 2 Pb Zn Cu Iron concentrate (I+II) 62.23 0.23 9.47 0.24 0.36 0.32 Figure 1 Two-stage magnetic separation - spiral chute number quality process Each of the above processes is a flow test conducted under open circuit conditions. On the basis of the two-stage magnetic separation-spiral chute combined process, the closed-circuit process is tested, and the results are similar to the iron concentrates obtained by the open-circuit conditions. Kunming Metallurgy Design and Research Institute has used this development and production of iron pyrite cinder red products. Comparing the quality of iron red which is directly prepared from pyrite slag raw materials and iron concentrates selected by the above process, the iron red products produced by iron concentrates are obviously superior to iron iron in quality and color. Iron red product prepared from ore slag raw materials. Hofulo CT medical vehicle consists of SINOTRUK SITRAK chassis, carrying platform (with door and windows), medical facilities in the cabin, power supply system, air circulation system, etc.it can fulfill the role of ambulance, and do CT examination and thrombolysis treatment the same time, save time to treatment for stroke patients.with 5G internet connection, real time communication with medical experts is available. instruction from medical experts will guarantee better diagnosis and treatment. Medical Vehicle,Medical Trailer,Patient Transport Vehicle,Medical Truck HOFULO (Suzhou) Automobile Manufacturing Co,.LTD , http://www.hofulospv.com