Views: 0 Author: Site Editor Publish Time: 2022-09-27 Origin: Site
1. During the operation of the scraper conveyor, due to the blockage of foreign matters in the materials, the force on the scraper increases instantly, resulting in a fracture accident; Due to the design defects, the scraper box slideway, side plate and bottom plate stuck scraper ring chain during the trial run of the scraper conveyor broke.
2. The tension of the circular chain of the scraper conveyor is increased due to the too tight pretightening force of the tensioning device, which is easy to cause chain breakage, tail seat overturning and other accidents at the moment of starting the scraper conveyor.
3. Due to inadequate maintenance during the operation of the scraper conveyor, the circular chain is too loose, severely worn, or the cone wheel at the head and tail of the machine is worn, missing teeth and other problems occur, leading to the scraper chain dropping, chain jumping, and chain breaking caused by the scraper deformation.
4. The scraper conveyor is overloaded due to the instantaneous excessive production capacity, which will also increase the tension of the circular chain, which will exceed the design range of the circular chain and break.
5. The uneven incoming materials of the scraper conveyor lead to changes in the pitch of the circular chain on both sides, and finally the circular chain breaks due to uneven stress.
6. During the operation of the scraper conveyor, the connecting bolts are broken due to fatigue, uneven stress, nut tripping, etc., which causes the ring chain to break.
7. The circular chain of scraper conveyor has creep due to long-term operation, which leads to poor meshing of chain and teeth during operation, leading to chain dropping and chain breaking accidents.
8. The scraper conveyor has uneven force on the scraper due to the uneven wear of wear-resistant materials (such as cast stone plate and wear-resistant steel plate) at the bottom of the chassis during long-term operation, resulting in chain breakage.
9. The chain of scraper conveyor is broken due to excessive coal padding in the chassis and increased resistance. In addition, according to the different materials transported, the high corrosivity will also shorten the life of the circular chain and cause chain breakage.
In addition to the above reasons, other external factors may also cause equipment accidents. Therefore, the inspection and maintenance of scraper chain should be strengthened in actual work, and some corresponding management measures and on-site protection measures should be taken.
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.
