Quantitative transportation device for high viscosity materials

Abstract

The invention discloses a quantitative delivery device for highly viscous materials. The sealing wheel of the conveying device is installed on the auxiliary transmission shaft, and the conveying wheel is installed on the main power shaft. The sealing wheel and the conveying wheel are in the conveying cavity of the pump body, and are sealed by the pump cover. The sealing wheel and the conveying wheel mesh with each other; The transmission gear is installed on the main power shaft, and the driven gear is installed on the auxiliary transmission shaft. The main transmission gear and the driven gear mesh with each other; the motor main shaft and the main power shaft are directly connected through a coupling. The invention can quantitatively convey high-viscosity materials; reduce the noise of the device and improve the efficiency of the pump; Less tooth wear, easy cleaning and maintenance; the device has lower requirements on the impurity content of the conveying medium, especially the solid particle content; the volumetric efficiency of the conveying pump is high.

Description

a technical field [0001] The invention belongs to the quantitative conveying technology of high-viscosity materials, in particular to a conveying device for accurately and quantitatively supplying asphalt ingredients to an asphalt mixing equipment. Two background technology [0002] In the asphalt mixing equipment, the aggregate and asphalt are mixed and stirred according to a certain proportion to finally obtain the asphalt mixture, which requires a conveying device that can quantitatively supply high-viscosity asphalt. In the prior art, the devices for conveying high-viscosity asphalt mainly use gear pumps, screw pumps, rotor pumps, etc., such as: 3GBW series thermal insulation asphalt screw pumps of Nanjing University of Science and Technology (China Patent No.: 90214652.1, ZL96223955.0), mainly It is used to transport high-viscosity and high-temperature lubricating liquids. It is now widely used in the transport of asphalt in highway construction. However, the screw pump...

AI Technical Summary

Problems solved by technology

The main features of the pump are strong self-priming, low shear, and small flow pulsation, but there are problems such as easy wear of the driving wheel and asphalt leakage

In addition, the more common external mesh asphalt gear pumps have common problems such as severe wear, large leakage, low volumetric efficiency, large flow pulsation, and high noise.

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