Asphalt concrete mixer is a mechanical equipment used for mixing asphalt with other aggregates (such as sand, gravel, mineral powder, etc.) and additives. It is widely used in various asphalt pavement constructions such as road construction, bridge engineering, airport runways, and urban road repair.

The working principle of asphalt concrete mixer:

The working principle of asphalt concrete mixer generally includes the following main steps:

1. Material feeding: Firstly, various aggregates (such as sand and gravel), mineral powder, asphalt and other materials are accurately fed into the mixer according to the preset proportion through the silo conveying system.

2. Heating and drying: Before mixing, the aggregate usually needs to be heated and dried to ensure that the temperature and humidity of the aggregate meet the ideal requirements. Asphalt itself also needs to be heated to maintain its fluidity.

3. Mixing: The materials are thoroughly mixed at high temperatures under the action of the mixing device to form a uniform asphalt concrete. The mixing device of the mixer is designed to ensure the uniformity of the mixing effect and avoid poor performance of the asphalt mixture due to insufficient mixing.

4. Unloading and transportation: After the mixing is completed, the asphalt concrete will be promptly transported to the transport vehicle or construction site through the unloading system to ensure that the construction progress is not affected.

The main types of asphalt concrete mixers are:

According to different production methods and processes, asphalt concrete mixers can be divided into two categories:

1. Continuous asphalt concrete mixer: This type of mixer is suitable for large-scale production and can continuously produce asphalt concrete. It is usually used for engineering projects that require a large supply. Its working method is to continuously feed various materials into the mixing system for mixing according to predetermined proportions, which has high work efficiency and is suitable for large-scale road paving.

2. Intermittent asphalt concrete mixer: Unlike continuous mixer, intermittent mixer will feed and mix materials in batches, and the machine needs to be stopped for unloading after each production is completed. This type of equipment is suitable for small and medium-sized projects or projects that require adjusting the ratio according to different needs. It is flexible in operation and can meet different construction requirements.

Advantages of asphalt concrete mixer:

The main advantages of asphalt concrete mixer are reflected in the following aspects:

1. High energy efficiency production: Modern asphalt concrete mixers are equipped with automated control systems, which can achieve precise material ratios and high energy efficiency production capacity, significantly improving work efficiency.

2. Uniform mixing: The mixing system can ensure the thorough mixing of asphalt and aggregate, resulting in a more uniform quality of the final asphalt concrete and meeting different construction needs.

3. Energy saving and environmental protection: The new asphalt concrete mixer adopts energy-saving technology to reduce energy consumption and exhaust emissions, which meets modern environmental protection requirements.

4. Easy to operate: The modern asphalt concrete mixer is equipped with an intelligent control system, which is easy to operate and can achieve remote monitoring and fault diagnosis, reducing the complexity of manual operation.

Asphalt concrete mixer, as an important mechanical equipment, is widely used in various fields such as road construction, bridge construction, airport runways, etc. It can efficiently and accurately mix asphalt and other aggregates into asphalt concrete that meets standards. Both continuous and intermittent asphalt mixers have advantages such as high energy efficiency, accuracy, and energy saving, and are indispensable equipment in modern road construction. Choosing a suitable asphalt concrete mixer can not only improve construction efficiency, but also ensure the quality and durability of the road surface, providing strong support for various projects.