英文摘要 |
In Taiwan, approximately 350,000 cars are submitted for scrapping every year. Most of these scrap cars are first dismantled at domestic scrap car dismantling plants, and the resulting scrap car shells are then delivered to scrap car shredding plants for further processing to recover valuable metals in the car shell; the remaining nonmetal waste is sent to an incinerator. To understand the scrap car dismantling process in Taiwan, this study conducted on-site investigation and analysis of scrap car dismantling practices at two domestic scrap car dismantling plants. This study investigated the on-site dismantling of eight scrap cars. The scrap car dismantling operations adopted in Taiwan involve first removing the battery, tires, gasoline, oil, and coolant in the car and then disassembling the engine, transmission shaft, and shock absorber. The remaining car shell is sent to domestic scrap car shredders. One or two people are required to perform on-site dismantling operations. The tools used in the dismantling process include forklifts, pneumatic electric drills, cutting scissors, and cutting machines. The energy sources required include electricity, diesel, oxygen, and acetylene. The average dismantling time for a scrap car at domestic scrap car dismantling plants is approximately 17 minutes, and an average scrap car is dismantled into approximately 530 kg of components, with the average weight of the remaining car shell being approximately 732 kg. |