Atlas Copco rocl8 reverse circulation drilling rig

Atlas Copco ROC L8 reverse circulation drilling rig in Wunugetu mountain

Atlas Copco ROC L8 reverse circulation drilling rig in Wunugetu mountain

China Construction machinery information

Guide: on July 4, 2011, China Gold Group Inner Mongolia Mining Co., Ltd. introduced the first atlas AMP in China# 8226; Copco ROC L8 crawler full hydraulic reverse circulation drilling rig (hereinafter referred to as ROC L8 reverse circulation drilling rig) pioneered the application of reverse circulation drilling rig in China and provided dry sampling for China

on July 4, 2011, China Gold Group Inner Mongolia Mining Co., Ltd. introduced the first Atlas Copco ROC L8 crawler full hydraulic reverse circulation drilling rig in China (hereinafter referred to as "roc L8 reverse circulation drilling rig"), which pioneered the application of reverse circulation drilling rig in China and set a new coordinate for dry sampling in China

the Wunugetushan copper molybdenum mine project mainly developed and constructed by China Gold Group Inner Mongolia Mining Co., Ltd. is 22km away from the downtown of Manzhouli, with a mining area of 9.8km2, copper metal reserves of 2.67 million tons and molybdenum metal reserves of 540000 tons, It is the fourth largest copper molybdenum associated deposit in China. The maximum experimental pressure is 300KN. The accuracy of the experimental machine is better than ± 1% of the interval between pressure plates. The main technical parameters are function and characteristics. The device maintenance and instrument operation market price of the experimental machine. After the second phase of the project is officially put into operation, China Gold Group Inner Mongolia Mining Co., Ltd. must comprehensively consider energy efficiency, environmental protection and product quality. The company's daily ore processing capacity reaches 75000 tons, with an annual output of 60000 tons of copper and 13000 tons of molybdenum, and has become an important copper and molybdenum production base in northern China

the counter circulation customer can only get the standard size steel plate ring, which plays a great role in sampling

China Gold Group Inner Mongolia Mining Co., Ltd. has always adhered to the business philosophy of "technology first" in the process of development and constantly tried various advanced technologies, which has laid a solid foundation for it to become the first customer of Atlas Copco ROC L8 counter circulation drilling rig in China

ROC L8 drilling rig is a multifunctional drilling rig that Atlas Copco is very mature and used by the majority of users. It is widely applicable to various applications of open-pit mining and quarry, and its flexibility is much stronger than the traditional open-pit mining and quarry drilling rig. It can not only reduce the lump rate after blasting through accurate straight holes, but also accelerate the stripping speed of ore and reduce the excavation of waste rock through parallel and presplitting blasting and increasing the slope angle. As the biggest highlight of this drill, its reverse circulation (RC) system can help the mine effectively control the dilution rate and confirm the final boundary of the ore body. Zhao Chunbo, manager of the production technology department of China Gold Group Inner Mongolia Mining Co., Ltd., also said when talking about the original intention of choosing this drilling rig: "The reverse circulation system equipped with Atlas Copco ROC L8 drilling rig can help us control the ore dilution and reduce the beneficiation cost; at the same time, guide the open-pit mining and stripping operation plan; it is conducive to the secondary delineation of the ore rock boundary and the reserve upgrading of the first mining section, so as to make the rational development and utilization of mineral resources and improve the comprehensive benefits of the mine."

in addition, because Wunugetushan copper molybdenum mine is located in the high latitude zone, belonging to the arid cold temperate zone and is short of water all year round, the dry drilling method adopted by ROC L8 reverse circulation drilling rig can effectively help the mine solve the problems of drilling and sampling under the condition of no water

high comprehensive drilling efficiency

in addition to the unique reverse circulation sampling method, another advantage of ROC L8 reverse circulation drilling rig is that the comprehensive drilling efficiency and sampling efficiency are very high

Wunugetushan copper molybdenum deposit belongs to porphyry copper molybdenum deposit, and the grades of copper and molybdenum are 0.46% and 0.053% respectively. In order to control the shape of the ore body and prevent the decline of grade, China Gold Group Inner Mongolia Mining Co., Ltd. will replace the original 100 × The survey degree of 100m has been reduced to 50 × 50m, 140mm in diameter and 30m in depth. Rock powder is taken every 3M. The amount of powder taken from each hole accounts for about 3% of the total amount of rock powder produced 5%。 According to Li Xuefeng, leader of the drilling team of the production technology department of China Gold Group Inner Mongolia Mining Co., Ltd., the cumulative drilling time of the ROC L8 reverse circulation drilling rig used in Wunugetushan copper molybdenum mine is 162h, the total drilling footage is 4673m, the comprehensive drilling efficiency is about 27.8m/h, and the pure drilling efficiency is 38.7m/h, which is nearly twice higher than the pure drilling efficiency of the domestic air reverse circulation sampling rig close to 20m/h

Atlas Copco is also outstanding in the durability of drilling tools. China Gold Group Inner Mongolia Mining Co., Ltd. has equipped the ROC L8 reverse circulation drilling rig with Atlas Copco original double wall drill pipe, drill bit and rc50 impactor. At present, the drill pipe and impactor have been used for 4673m, and can continue to be used, which has almost exceeded the average service life of domestic common drill pipe and impactor under similar rock conditions, It fully reflects the excellent quality and long service life of Atlas Copco reverse circulation drilling tool

high status of maintenance

unlike other mining companies that only pay attention to use rather than invest time and energy in maintenance, China Gold Group Inner Mongolia Mining Co., Ltd. also attaches great importance to the maintenance and repair of drilling rigs. The drilling fleet led by Captain Li will maintain the engine every 250 hours, and even tighten every screw on the track. Such careful maintenance and care ensures the normal or even super level play of the efficiency of the drilling rig

in addition to maintenance, the technical level of operators also has a great impact on the use effect of the drilling rig. Since the introduction of this ROC L8 reverse circulation drilling rig last year, all six operators of Wunugetushan copper molybdenum mine have received professional training from Atlas Copco, which has effectively improved their own operation level and production efficiency, It also reflects Atlas Copco's brand commitment to providing customers with sustainable productivity

with the implementation of the 12th Five Year Plan, China Gold Group Inner Mongolia Mining Co., Ltd. is willing to continue to work towards the goal of green, environmental protection, harmony and first-class mines with the support of Atlas Copco, so as to make greater contributions to China's economic development! (Atlas Copco: Meng Dan)

ROC L8 reverse circulation drilling rig in operation

ROC L8 reverse circulation drilling rig in sampling operation

Li Xuefeng (right), leader of the drilling crew of the production technology department of China Gold group Inner Mongolia Mining Co., Ltd., is communicating with Atlas Copco's Service Engineer (left)