Excavators, also known as excavating machinery, also known as excavators, are earth-moving machines that use buckets to excavate materials above or below the bearing surface and load them into transport vehicles or unload them to the stockyard. Wheel Excavator,Mini Digger,Mini Excavator,Crawler Excavator Zhengzhou Dongfeng Mid-south Enterprise Co., Ltd. , https://www.cn-dfmtruck.com
On the 14th, the 2011 National Highest Science and Technology Awards Ceremony was held in the Great Hall of the People. Professor Wang Chuansheng, Dean of the School of Mechanical and Electrical Engineering of Qingdao University of Science and Technology, and Jinan No. 1 Company jointly completed the recycling of waste rubber waste plastics and the recycling of resources, and won the second prize for national scientific and technological progress.
“The project belongs to the field of circular economy and energy conservation and emission reduction. It is to disintegrate waste tires and rubbers into oils of high quality to obtain high-quality fuel oil, as well as iron wire and carbon black.†On the afternoon of the 14th, when the reporter contacted Wang Chuansheng, he was in Beijing. Receive awards. Wang Chuansheng said that with the development of industry, various kinds of waste plastics are also increasing. The amount of waste plastics produced in 2006 alone reached more than 20 million tons, and has since been rising every year. From this point of view, the annual production of waste plastic is quite amazing.
At present, waste plastics disposal methods mainly include burial, incineration and recovery of heat energy, material regeneration, pyrolysis and other methods. The cost of burial is low and the technology is simple, but it is easy to cause secondary pollution. Among them, pyrolysis is one of the most ideal methods. This method not only has no pollution to the environment, but also can reduce the plastic originally made of petroleum into petroleum products, and can effectively recover energy.
After more than two years of research, Wang Chuansheng and a company in Jinan worked together to develop a complete set of new technologies, new processes, and new equipment for industrial continuous waste plastics for low-temperature cracking and oiling to meet market demand.
The materials excavated by the excavator are mainly soil, coal, sediment, and pre-loose soil and rock. Judging from the development of construction machinery in recent years, the development of excavators is relatively fast, and excavators have become one of the most important construction machinery in engineering construction. The three most important parameters of the excavator: operating weight (mass), engine power and bucket capacity.
1. The excavator is a fixed asset with a large economic investment. In order to increase its service life and obtain greater economic benefits, the equipment must be able to appoint people, machines, and positions, and clarify responsibilities. When the post must be transferred, the equipment should be disclosed [4].
2. After the excavator enters the construction site, the driver should first observe the geological conditions of the working face and the surrounding environment. There must be no obstacles within the radius of the excavator's rotation to avoid scratches or damage to the vehicle.
3. After the machine is started, it is forbidden for any person to stand in the bucket, on the shovel arm and on the crawler to ensure safe production.
4. During the work of the excavator, it is forbidden for any person to stay or walk within the radius of gyration or under the bucket. Non-drivers are not allowed to enter the cab and move around, or bring training drivers to avoid damage to electrical equipment.
5. When the excavator is shifting, the driver should first observe and sound the whistle, and then shift the position to avoid safety accidents caused by someone on the machine side. The position after the shift should ensure that there is no obstacle in the space of the excavator's rotation radius.
6. After the work is completed, the excavator should be moved away from the low-lying place or the edge of the trench (ditch), parked on the flat ground, and the doors and windows should be closed and locked.
7. The driver must do the daily maintenance, repair and maintenance of the equipment, make daily records of the use of the equipment, find that the vehicle has problems, and cannot work with the disease, and report to the repair in time.
8. The cab must be clean and tidy, and the body surface must be clean, free of dust and oil; after the work is completed, the habit of wiping the car should be developed.
9. The driver should make timely records of the Taiwan and Taiwan shifts, make statistics on the work content of the day, complete the procedures for the odd jobs or items outside the project in time, and make records for the use of the checkout.
10. Drivers are strictly prohibited from drinking and driving at noon during their work. If they find that they will be given financial penalties, they shall bear the financial losses.
11. For man-made damage to vehicles, it is necessary to analyze the causes, find problems, clarify responsibilities, and impose economic penalties according to the degree of responsibility.
12. It is necessary to establish a high sense of responsibility, ensure safe production, conscientiously do good communication and service with the construction side, do a good job in bilateral relations, establish a good working style, and work hard for the development and benefit of the enterprise.
13. Excavator operation is a special operation, and a special operation certificate is required to drive an excavator operation.
14. Maintenance is to follow the maintenance taboo.
The recycled rubber, tires, plastics, and other waste items can be cracked and oiled to obtain high-quality fuel oil. On the 14th, a professor from Qingdao University of Science and Technology and a company in Jinan jointly studied the cracking and recycling of waste plastics, and won the second prize for national scientific and technological progress.