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Ongoing Assembly and Commissioning of the First Domestically-made High-power Coal Shearer Independently Developed by Shendong Coal Company

Author: Wang Peng, Liu Xiaoce Source: Shendong Coal Company Pubdate: 2022-10-17 Font size:【L M S

Recently, ground assembly and commissioning of the first domestically-made high-power medium-thickness coal seam shearer, an independent R&D blockbuster of CHN Energy Shendong Coal Company, is under way, which will be used at Yujialiang Coal Mine as planned. As one of the important mining equipment with corporate efforts for high-end research and development, the parameters and performance are in line with foreign shearer models of the same kind. The designed stopping height of 2.8-5.4 meters implies that more than half of coal seam thickness range of fully mechanized coal mining face could be covered.

With heavy-duty and intelligent design ideas embodied, various parameters of this set of equipment are comprehensively upgraded in line with international cutting-edge standards, represented by the cutting motor power of 1,050 kW and installed power of 2,840 kW. Compared with imported coal shearers, the machine power density of this equipment is 33.65% higher. Designed intensity of the transmission system is comprehensively optimized and elevated, making this set of equipment more resilient to the complicated downhole working environment.

According to Bu Chuang from Top-notch Equipment R&D Center of Shendong Coal Company, “Such coal shearer is not only equipped with sensors for mining height, dip angle, oil level, oil temperature, power cable tension and other indicators, but also furnished with automatic refueling system and automatic greasing device. Self-lubricating copper sheathing is available in the hinge parts with difficulty in maintenance. This considerably reduces downhole operation maintenance workload, and gives impetuses to further automation of the coal shearer”.

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