Yan Dou

Title: Innovations by Yan Dou in Lignite Drying Technology

Introduction

Yan Dou is an accomplished inventor based in Gansu, China. He has made significant contributions to the field of lignite drying technology, holding a total of 4 patents. His innovative approaches aim to enhance efficiency and reduce environmental impact in coal processing.

Latest Patents

One of Yan Dou's latest patents is a method for drying high moisture, low calorific value lignite for a generating set and recovering water contained therein. This invention includes an apparatus that consists of a rotary steam tube dryer, a washing cooling tower, a coal mill, a first bag filter, a condenser, a weighing surge bunker, and a water ring vacuum pump. The integrated drying system works in conjunction with a milling system, allowing for direct connections between the dryer and coal mill via a surge bunker. This design not only conserves heat lost during coal transportation but also eliminates the need for long-distance transport, effectively reducing dust pollution, waste, and the risk of spontaneous combustion.

Another notable patent is the dehumidifying tower for exhaust gas. This tower features a washing section, a flash-distilling section, and a condensing section. In the washing section, exhaust gas is treated with a cooling liquid to remove solid dust and condense moisture into liquid form. The flash-distilling section produces a cooled cooling liquid and vapor, which is then cycled back into the washing section. The condensing section efficiently condenses the vapor, ensuring effective moisture management in exhaust gas.

Career Highlights

Yan Dou has worked with prominent organizations such as the Tianhua Institute of Chemical Machinery and Automation. His experience in these institutions has allowed him to develop and refine his innovative technologies in lignite drying and exhaust gas treatment.

Collaborations

Throughout his career, Yan Dou has collaborated with talented individuals, including Xu Zhao and Yonggong Ling. These partnerships have contributed to the advancement of his research and the successful implementation of his inventions.

Conclusion

Yan Dou's contributions to lignite drying technology and exhaust gas treatment demonstrate his commitment to innovation and environmental sustainability. His patents reflect a deep understanding of the challenges in coal processing and a dedication to finding effective solutions.