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A platform for research: civil engineering, architecture and urbanism
Feed metering structure of asphalt measuring hopper
The invention relates to a feed metering structure of an asphalt measuring hopper. The feed metering structure comprises an asphalt measuring hopper and a metering and feeding pipe, wherein the metering and feeding pipe is connected with a first opening of a pneumatic asphalt three-way valve; a second opening of the pneumatic asphalt three-way valve is connected with a discharge opening of an asphalt pump by virtue of an oil inlet pipe; a feeding hole of the asphalt pump is connected with an asphalt tank; an oil return pipeline is arranged at a third opening of the pneumatic asphalt three-way valve; and when the oil return pipeline is gated by the pneumatic asphalt three-way valve, asphalt pumped by the asphalt pump performs the operating cycle by virtue of the oil return pipeline. According to the feed metering structure disclosed by the invention, during the metering intermission of the asphalt measuring hopper, the asphalt metered in the asphalt measuring hopper returns to the asphalt tank or the feeding hole of the asphalt pump by virtue of the pneumatic asphalt three-way valve and the oil return pipeline through state switching of the pneumatic asphalt three-way valve, so that the operating cycle of the asphalt pump is realized, the feed metering structure is simple, convenient to use and operate, safe and reliable, and the using cost is reduced.
Feed metering structure of asphalt measuring hopper
The invention relates to a feed metering structure of an asphalt measuring hopper. The feed metering structure comprises an asphalt measuring hopper and a metering and feeding pipe, wherein the metering and feeding pipe is connected with a first opening of a pneumatic asphalt three-way valve; a second opening of the pneumatic asphalt three-way valve is connected with a discharge opening of an asphalt pump by virtue of an oil inlet pipe; a feeding hole of the asphalt pump is connected with an asphalt tank; an oil return pipeline is arranged at a third opening of the pneumatic asphalt three-way valve; and when the oil return pipeline is gated by the pneumatic asphalt three-way valve, asphalt pumped by the asphalt pump performs the operating cycle by virtue of the oil return pipeline. According to the feed metering structure disclosed by the invention, during the metering intermission of the asphalt measuring hopper, the asphalt metered in the asphalt measuring hopper returns to the asphalt tank or the feeding hole of the asphalt pump by virtue of the pneumatic asphalt three-way valve and the oil return pipeline through state switching of the pneumatic asphalt three-way valve, so that the operating cycle of the asphalt pump is realized, the feed metering structure is simple, convenient to use and operate, safe and reliable, and the using cost is reduced.
Feed metering structure of asphalt measuring hopper
WU XIAOLIANG (author) / TANG JIFENG (author)
2015-04-01
Patent
Electronic Resource
English