Ore description:

Ore refers to stones that contain some valuable minerals extracted from mines, and can be used in metal mines, metallurgical industry, chemical industry, construction industry, iron (highway) construction units, cement industry and sand and gravel industry and other engineering fields after crushing, grinding and other processing。

The ore grade is commonly used to measure the value of the ore, but the composition of gangue in the effective component ore (the mineral with a small content of useless minerals or useful components that can not be used) and the amount of harmful impurities also affect the value of the ore。

The company through the investigation, the investigation results are as follows:

(1) Assay analysis

In 1981, the second exploration team of the Third Bureau of Metallurgical Prospecting systematically sampled the iron ore layer and the top and bottom of the iron ore layer, and the content of gold and silver was less than 0.1g/t。

(2) The main chemical composition of iron ore is as follows:

The chemical composition of the mine is relatively simple, the useful component is only TFe, the associated beneficial components Au, Cu content is low。There is no use value, and the content of harmful components such as S and P is low。

(3) The contents of total iron and magnetic iron in the orebody in this area are as follows:

mFeⅠ ore body: TFe: 27.99～31.87%, with an average of 29.64%;mFe: 14.57～20.36%, with an average of 18.21%。

mFe II ore body :TFe: 29.08～32.44%, with an average of 30.49%;mFe: 17.65～24.10%, with an average of 20.06%。

Mine conditions:

The company has set up a special safety organization in the mine, and the current partner is the construction team of Zhejiang Cangnan Hongji Blasting Engineering Co., LTD. The company has independent legal personality qualification, unified management by the mining plant, and the "six systems" facilities in the mining well are perfect。The mine has set up a safety production management leading group, public security leading group, environmental governance leading group, civil explosive materials management leading group and emergency rescue leading group。

Tailings situation:

Shanxi Baoshan Mining Co., Ltd. has two tailings ponds, namely, Xitianjinggou tailings pond and XiaoDigou tailings pond。

Xitianjinggou tailing reservoir is a middle-line dam construction method, and the dam body is divided into three parts: initial dam, water filter and sand dam and late accumulation dam。The initial dam type is rockfill dam, the dam bottom elevation is 1448m, the dam top elevation is 1485m, the initial dam height is 37m, the dam top width is 5m, and the internal and external slope ratio is 1:2。The type of the filter sand bar is the same as that of the initial dam. The bottom elevation of the dam is 1392m, the top elevation is 1402m, the dam height is 10m and the dam top width is 4m。The tailings can form the final dam body after being constructed by hydrocyclone classification. The final stacking elevation is 1535m, the stacking dam height is 50m, and the total dam height is 87m, which can form a reservoir capacity of 257.730,000 m³, external storage capacity 168.490,000 m³, to meet the selection service of about 11.84年。

The Xiaodigou tailings pond is currently undergoing three phases of discharge，In the third phase, the original wet discharge process was changed to tailings dewatering, tailings dry pile dam construction production and storage by stacking DAMS from the front to the end of the reservoir，From elevation 1344m to elevation 1400m，The height of the dry tailings pile is 56m，The total dam height is 186m，The final stacking dam crest elevation is 1400m，New storage capacity 1175.150,000 m³, total storage capacity is 1961.340,000 m³ is a second-class tailings pond。