Mobile pneumatic transporter for snow and garbage removal from roofs and house areas

Abstract

Snow removal from roofs and near-house territories is relevant for the Perm Territory in the winter. The article discusses a mobile pneumatic transporter for garbage and snow removal consisting of a fan, a loading bin, an ejector chamber, and a vibrator. The main novelty of the plant is the use of polyethylene film for transport ducts. Air ducts were made by soldering with a hot iron. In the suture allowances, sutures were made to hang air ducts on a cable when removing snow from the roof. The calculation of the ejection funnel for the fan FS-2101/SP 220D is given in the work. As the funnel body, a plumbing two-rib tee with a diameter of 150 mm was used, in which a confuser of Æ100 mm was made. Since there is no data in the literature on the coefficient of friction of polyethylene, measurements of the total pressure losses in the system from the funnel to the final point of unloading, the dependence of the air flow rate and the suction rate from the loading hopper were made on the forty-meter air duct. After the calculations, a mixing chamber with a diameter of 125 mm was added to the tee. The pneumatic transporter demonstrated the ability to move snow to a distance of 40 meters at a speed of 10 m/s. Snow capacity is 9 cubic meters per hour. When removing snow from the roof along the air duct suspended with a slope of 1: 4, the snow can slide without the fan turned on. The pneumatic transporter can be used as a loader to a height of at least 4 m. The advantage of our pneumatic transporter over snowplows is the electric fan drive. This allows you to store the installation in the utility rooms of a residential building, without violating fire safety. The film ducts are compactly folded into a storage roll.