Method and device of irradiation of logs with electron beams as a phytosanitary treatment

US8389965B2 · kind B2 · utility

Assignees

• TSINGHUA UNIVERSITY · CN
• NUCTECH COMPANY LIMITED · CN

Inventors

• Kejun Kang · Beijing, CN
• Haifeng Hu · Beijing, CN
• Chuanxiang Tang · Beijing, CN
• Yuanjing Li · Beijing, CN
• Qitian Miao · Beijing, CN
• Huayi Zhang · Beijing, CN
• Junli Li · Beijing, CN
• Zhiqiang Chen · Beijing, CN
• Ming Hu · Beijing, CN
• Ming Huang · Beijing, CN
• Yaohong Liu · Beijing, CN
• Wanlong Wu · Beijing, CN
• Hui Zhang · Los Angeles, US
• Shenjin Ming · Beijing, CN

Key dates

• Filing date: Apr 11, 2008
• Grant date: Mar 5, 2013
• Expiry date: Mar 26, 2029

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A01M1/226
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

For quarantine treatment of a farming and forestry product for pest control, a method and a device may irradiate logs as a phytosanitary treatment with electron beams. The method may include: spreading the logs; aligning the spread logs to be flush at one end; conveying the spread and flush logs laterally; conveying the logs longitudinally through an irradiation field formed by accelerators to provide treatment of irradiation with the electron beams; throwing the irradiated logs out; and laterally conveying the logs away. The device may include a conveying device for conveying the logs, a shielding structure surrounding the conveying device, and accelerators provided in the conveying path of the conveying device. Two or more accelerators may be provided in centrosymmetry about the conveying path.