Views: 0 Author: Site Editor Publish Time: 2022-09-27 Origin: Site
1. Cut off the power supply of the main engine power section and install the hydraulic chain tensioner.
2. The high-pressure emulsion pipeline from the hydraulic support fluid supply system is connected to the chain tensioner filter device. Open the stop valve to start fluid supply. At this time, turn the handle of the chain tensioner control valve group, the motor drives the reducer to rotate, so that the chain wheel of the scraper head drives the scraper chain to rotate. Brake the motor at the right time to make the chain blocker installed into the chain blocker hole, and check whether it is installed in place and secure.
3. Turn the handle of the valve block to make the motor drive the scraper chain to start to rotate, and make the scraper chain start to pile up at the machine head. When the chain is tensioned to a certain extent and the chain preload tester is used to test it to meet the preload requirements, turn the handle of the valve group to make it in the middle position. At this time, the motor brakes and the scraper chain stops rotating.
4. After the chain saw is used to cut off the redundant chain link, install the connecting link to close the scraper chain.
5. Turn the handle of the valve block to make the motor rotate in the opposite direction, and slowly release the tension near the head sprocket shaft group.
6. Remove the chain stopper and disconnect the chain tensioner gear box from the chain tensioner gear of the main engine power unit.
7. Close the hydraulic chain tensioner fluid supply system, stop supplying fluid to the chain tensioner, and the chain tightening operation is completed.
Before the end of the whole chain tightening operation process, it is prohibited to turn on the power supply of the main engine power unit, otherwise there will be danger and serious consequences.
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.
