Nickel mining rely mainly on open-pit mining in the past 80 years, there are open pit Jinchuan Nonferrous Metals Company and Jilin Nickel Industry Company wealthy Ridge open pit and large open pit mine, ore with an annual output capacity of 2 million t. By the mid-1980s, the Jinchuan No. 2 Mine was completed and put into operation, which caused the main nickel concentrate of nickel production in the country to come from underground mining. By the end of the 1980s, the open pit mines were successively mined and transferred to underground mining.
At present, nickel ore is all dependent on underground mining. Under the guidance of the planned economy before the 1980s, the mining method was relatively backward, and mining was mainly carried out by electricity and labor. In order to reduce capital investment, many mines have adopted the caving method, and the depletion rate and loss rate are more than 20%. Since the late 1960s, a series of process technologies have been carried out with the Jinchuan Nickel Mine as the first cement-filling mining method. Now this method has been applied to the majority of nickel mines. The mining methods for the main nickel mines in China are shown in the table below.
At present, 90% of the mining volume of China's nickel mines is cemented and filled, and the recovery rate can be controlled at about 95%. The ore grade is 20% to 30% higher than the caving method, which lays down the ore recovery rate and the concentrate grade. A good foundation.
China nickel mine mining method | |||||
Mining method | Mine name | Full labor productivity | Depletion rate ( % ) | Loss rate ( % ) | Mining method |
Upward cement filling mining method | Jinchuan Long Shou Mine (stop) Xinjiang Kalatongke Mine | 120~240 | 4.6 | 3~8 | Artificial electric pick |
Upward inclined layered cementation filling method | Jinchuan Longshou Mine Jilin Fujia Mine | 121~508 | <6 | 2~6.6 | Electric pick |
VCR method | Jinchuan No. 2 Mining Area (stop) | 0.93 | 6.3 | scraper | 　 |
Segment filling method | Jilin Daling Mine | test | 　 | 　 | 　 |
Mechanized upward stratified filling method | Jinchuan No. 2 Mining Area | 200 | 5.5 | 3.9 | scraper |
Mechanized downward stratified filling method | Jinchuan No. 2 Mining Area | 537~730 | 3.15 | 4.2 | scraper |
Retaining method | Qinghai Hualong Nickel Mine, Shangnan Nickel Mine, Shaanxi (stop) | 200 | 8~10 | 8~10 | funnel |
Caving method | Sichuan Huili Nickel Mine (stop) | 150~300 | 21~50 | 19~32 | Electric pick |
Jinchuan Long Shou Mine (poor mining area) (stop) | |||||
Open pit mining | Jilin Chibaisong Mine Jinchuan Open-pit Mine (stop) Jilin Lanshi Open-pit Mine | 400~1000 | 2~3.9 | 3~3.2 | Electric shovel, truck |
Nickel Base Corrosion Resistant Alloy
Nickel-based corrosion-resistant alloys generally refer to nickel-based metal materials with strong corrosion resistance. The corrosion-resistant alloys produced by Seonjip are mainly used in the fields of petrochemical, energy, marine and so on.
Monel 400 Monel K500 Nitronic 50 Nitronic 60 RS-2 Inconel 600 Inconel 601 Inconel 625 Inconel 725 Incoloy 800 Incoloy 800H Incoloy 800HT Incoloy 825 Incoloy 901 Incoloy 925 Incoloy 926 Hastelloy B Hastelloy B-2 Hastelloy C Hastelloy C-4 Hastelloy C-22 Hastelloy C-276 GH32 GH2132 GH3030 GH3128 GH4145 GH4169 GH4180 F55 F53 F51 Alloy31 Alloy20Cb-3 904L 329 254SMO/F44 253Ma 17-7PH 17-4PH 15-7MoPH 15-5PH 4J36 (Invar36) 4J29 (F51) 1J50 1J79 3J53 316MOD 725L+N 254SMO
Inconel 625 Plate,Nickel Chrome Alloy,Nickel Chromium Alloy,Inconel 600 Round Bars
Jiangsu Seonjip Technology Co.,Ltd. , https://www.seonjip.com