1. For lean ore samples, only 29.06% of iron is tested from the aspects of calcination temperature, calcination time, magnetic separation fineness and magnetic field strength. The final test results show that: due to the low iron content of the ore, it is necessary to make Iron concentrate grades of up to 60% are extremely difficult. Copper conductive rate is very good,machining copper(including Machining Brass,machining bronze) is the use of CNC machining out, including turning, drilling, cutting, and screw teeth, etc.. Machining copper commonly used materials: copper, brass, bronze, beryllium copper. the surface treatment is generally silver plating, gold, some laser LOGO, we have a special inspection department to carry out inspection, and ensure that each size to meet the requirements of the drawings, including machining copper applied in various industries: household appliances, conductive slip ring, communications, medical equipment, industrial automation equipment. Machining Copper,Machining Beryllium Copper,Micro Machining Copper,Electrical Discharge Machining Copper,Copper Machining Hong Kong RYH CO., LTD , https://www.szcncmachiningparts.com
The mine has sent two kinds of mineral samples, lean ore and rich ore. The chemical analysis of lean ore-like ore has a total iron grade of 29.06%. Iron phase analysis: iron in red brown iron is 23.35%, accounting for more than 80% of total iron content. The iron in the iron silicate is 5.06%, and the iron in the iron carbonate is 0.45%. The test adopts the reduction roasting-magnetic separation process. After a series of experimental studies, it is shown that due to the low iron content in the ore, it is extremely difficult to reach 60% of the iron concentrate grade, and the iron recovery rate is also very low, and the conventional process can hardly be realized. The economic benefits of developing this ore will be limited. The chemical analysis of the ore-rich ore has a total iron grade of 49.86%. After the reduction roasting-magnetic separation process, the iron concentrate grade can be obtained as 61.24%, and the recovery rate is 80.30%. The test results are ideal.
2. For the rich ore sample, the iron content is 49.86%. The test result is: the iron concentrate has a full iron grade of more than 60% and the recovery rate is 80%. The results show that the resource can be developed and utilized. Due to the tight test time, the test cost is limited. The conditions were not tested in detail.
3. Since the first lean ore sample is not representative, the iron grade and the actual geological grade are quite different, and the actual geological grade is 43%. Therefore, the iron concentrate grade and recovery rate of the test results have no reference value. The second kind of bonanza grade iron taken to 49.86%, compared with the actual geological grade is slightly higher, achieved good indicators in the absence of a detailed test case, because the nature of iron ore properties compared to other metal ore deposits Relatively stable, it can be inferred that under the condition that the iron ore grade is above 40%, the iron fine powder can reach more than 60% by roasting magnetic separation. It is suggested that the next step of detailed ore properties and ore dressing test research can maximize the iron concentrate grade and recovery rate, and create the highest benefit for the development and utilization of this resource.