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        What Is The Function Of Asphalt Concrete Mixing Equipment?

        2019-03-18  From: Henan Chengjing Mechanical Electrical Equipment Co.Ltd Browsing times:81

        The function of asphalt concrete mixing equipment is: drying, heating, screening and measuring sand and stone, adding appropriate amount of filler (stone powder), and mixing with hot asphalt liquid evenly into asphalt mixture according to a certain proportion.


        Categories according to process flow: forced stirring intermittent and continuous, self-falling continuous stirring drum type.

        (1) The supply of sand and gravel and the drying and heating of LB batch asphalt concrete mixing equipment are continuous, while the mixing with hot asphalt liquid is batch and intermittent. Sand and gravel are stored in each hopper of the cold storage bin. After initial mixing according to volume measurement, the sand and gravel are fed into the drying cylinder by belt conveyor for drying and heating. There are many long blades on the inner wall of the drying drum. The drum inclines slightly towards the discharge side, and the discharge end is equipped with a burner. When the cylinder rotates, the sand and gravel are continuously lifted and scattered by the long blades, moving forward, contacting the flame sprayed by the burner, drying and heating, then discharging out of the cylinder, then sent by the bucket elevator to the screening machine for screening, and stored in the hoppers of the hot bin, and then discharged into the weighing hoppers with electronic scales according to the prescribed mix ratio. Meanwhile, stone powder is conveyed and weighed by conveyor, and hot asphalt liquid is pumped and measured by asphalt pump. After precise allocation of various materials, hot sand stone and stone powder are first discharged into the mixer for dry mixing, and then hot asphalt is sprayed on the hot material for mixing. The agitator is a two-axle forced type. The two axes rotate in reverse. There are several pairs of agitator blades on each axle. After fully mixing the mixture, the bottom discharging door is opened and discharged. The exhaust gas and dust are recovered by pipeline and discharged after purification by dust removal device. The main characteristic of continuous asphalt concrete mixing equipment is that hot sand aggregate and hot asphalt liquid are continuously metered and supplied, continuously mixing and discharging. The agitator is long and has many pairs of agitator blades installed in the spiral direction. One end feeds continuously, the other end discharges continuously. Generally equipped with automatic control devices, can achieve automatic production, high productivity, but with more difficult to accurately control.

        (2) Drum asphalt concrete mixing equipment developed in the 1970s, which is characterized by continuous drying and heating of sand and gravel and mixing of mixture in a drum. The injector is installed in the center of the feeding end of the drum and heated along the feeding stream. Hot asphalt liquid is sprayed into the first half of the drum and discharged after self-falling mixing with hot sand and stone, which not only simplifies the process, but also reduces dust flying. The unloaded finished products are stored in the finished product warehouse for reserve. In recent years, this mixing equipment has applied electronic technology and new testing instruments, which can realize production automation and strict control of mixing ratio, and ensure the quality of finished products.

        Keywords: What Is The Function Of Asphalt           

        Henan Chengjing Mechanical and Electrical Equipment Co., Ltd. specializes in compulsory asphalt mixing equipment, barrel asphalt mixing equipment, asphalt mixing equipment, recycling equipment, mobile asphalt mixing equipment, cement concrete mixing equipment, stabilized soil mixing equipment and other business. Interested customers please consult us, contact telephone: 13693866035

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