Efficient foamed asphalt foaming device

Abstract

The invention discloses a foamed asphalt foaming device, belonging to the technical field of road construction equipment. The foaming device is structurally composed of an asphalt pipe, an asphalt spraying switch, a foaming cavity, a water atomization nozzle and a compressed air nozzle, wherein the asphalt spraying switch is driven by an air cylinder, the tail part of a piston rod of the air cylinder is of a needle-like structure, is matched with an asphalt spraying inlet, and has a self-cleaning effect; the center of an asphalt pore plate at the upper end of the foaming cavity is provided with the asphalt spraying inlet, the center of a bearing plate at the lower end of the foaming cavity is provided with an asphalt spraying outlet which is designed in a porous mode, and the asphalt pore plate and the bearing plate can be replaced so as to adjust the spraying pressure and flow rate of asphalt. The device is applicable to the forming of various types of asphalt, and has a self-cleaning effect to eliminate jams; due to the porous design of the asphalt spraying outlet, the half-life period and expansion rate of foamed asphalt are increased, and the quality of asphalt foaming is improved. The device is suitable for industrial production and experimental investigations and has the characteristics of flexibility, simplicity in manufacturing, high practicability, low cost, and the like.

Description

technical field [0001] The invention belongs to the technical field of road construction equipment, in particular to a foaming device for foamed asphalt. Background technique [0002] Foamed asphalt technology is a new environmentally friendly cold recycling technology, which can save asphalt consumption by 10-15% compared with traditional road construction technology. As my country's highways have entered the renovation stage in recent years, using traditional technology to maintain old road surfaces will inevitably produce a large amount of waste asphalt mixture, which is not only a waste of scarce oil resources, but also causes environmental pollution. Foamed asphalt is a new material that adds water droplets to high-temperature asphalt to form steam bubbles, produces a chain reaction, and significantly improves the bonding performance. Foamed asphalt has strong cohesiveness and stability, and the mixture can be stored for a long time and can be cold rolled. Foamed aspha...

AI Technical Summary

Problems solved by technology

Asphalt is a high-viscosity fluid at high temperature, and it will solidify into blocks after cooling at room temperature. Therefore, during the use of equipment, asphalt will often cause blockage of the nozzles, which will seriously affect the continued use of the equipment.

The wide variety of asphalt also exposes many problems such as the low structural adaptability of the asphalt foaming device and the unsatisfactory foaming effect.

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