Views: 0 Author: Site Editor Publish Time: 2022-09-27 Origin: Site
1. Broken chain of scraper
There are many reasons for chain breaking failure, mainly including: the chain material, manufacturing process and quality of the scraper can not meet the requirements; Start the motor when the scraper is seriously overloaded; The tightness of the chain is not enough, too loose or too tight, or the length of the chains on both sides is not uniform; The chain is seriously worn and loose; The chain is suddenly stuck during operation; The connecting bolts of the traction chain are lost; The coal mining face is uneven, with serious bending and concavity.
2. Chain failure of scraper
The main reasons for the chain failure of the scraper are: the head of the scraper is not straight; The tightness of the two chains is inconsistent, and the scraper is seriously skewed; The chain wheel is worn and aged, or the impurities are fastened, so that the vertical chain of the scraper is detached from the wheel; Excessive bending or too thin scraper.
Recently, the Jining High-tech Zone General Trade Union and the Human Resources Department of Jining High-tech Zone jointly announced the 2024 'High-tech Craftsman' list. Li Zhenbo, General Manager of Information Technology at China Coal Group and General Manager of Zhongyun Group, was awarded the title of 'High-tech Craftsman' for his outstanding contributions and innovative spirit.
On September 30th, China Coal Group held a grand cultural performance to celebrate the 75th anniversary of the founding of the People's Republic of China with the theme of 'Forging Ahead to Celebrate the Birthday of the People's Republic of China' in the conference center. The chairman of China Coal Group, Mr. Qiu Qing, the general manager of China Coal Group, Mr. Han Yong, and all the members of the leadership team of China Coal Group attended the event and witnessed the grand celebration together with more than 1,000 employees on the spot. The cultural performance was conducted in the way of 'on-site + webcast', aiming to show the spirit of the cadres and workers of China Coal Group and express the love and blessing to the great motherland through colorful cultural programs.
On September 29th, in this season of autumn and fruitfulness, China Coal Group, full of joy and pride, participated in the ‘Harvest Celebration and National Day’, which was jointly organized by Jining Hi-Tech District Federation of Trade Unions and Jiezhuang Street to welcome the 75th anniversary of the founding of New China and the Farmer's Harvest Festival.
