翻车机间卸煤扬尘捕集回收装置的设计与应用

Design and application of coal dust capturing and recycling device during dumper unloading

为了解决翻车机间卸煤时煤尘飞扬造成的现场环境污染,以及对工人身体健康和设备安全运行造成的影响,研制了翻车机间卸煤扬尘捕捉除尘装置。该装置利用风机抽吸作用,在卸煤扬尘处造成负压,将抽风口设在煤斗挡煤墙边缘这个最有利的吸尘位置上,沿翻车机的轴向布置等压吸尘装置,抽吸翻车时产生的粉尘,使粉尘沉降在装置内,沉降净化后,乏气体对空排放,沉降下来的粉尘通过刮板输送机被送回到翻车机下煤斗内。整套装置实现煤粉抑制、捕捉、回收利用自动运行,工艺流程简便,效果明显,改善了作业环境和卫生条件,有利于职工健康和清洁生产,符合国家环保政策,有推广价值。

To reduce environmental pollution caused by coal dust during dumper unloading, provide a healthy and safe atmosphere for workers and facilities, design coal dust capturing and recycling devices. The suction effect of fan is used to generate negative pressure during unloading operation. The outlet of exhaust fan is located on the edge of coal scuttle wall which is the most favorable suction position. The pressure vacuum cleaner is axially arranged along the dumper to capture the coal dust into sedimentation part. After sedimentation and purification, release exhaust air into air, transport the sedimented dust back to coal scuttle under the dumper by scraper conveyor. The whole device can run automatically for coal dust confining, capturing and recycling. The process is simple and effective. It improves work environment and sanitary conditions,which is conformity wit＇h national policy of environmental development.