What Are Features of Drum Mix Asphalt Plant

 Asphalt mixing equipment puts various aggregates and asphalt into the equipment at one time according to the standard proportion and standard industrial process, and forcefully mixes these aggregates and asphalt. As long as the degree of fusion of aggregates and asphalt reaches a certain precision, the finished material is formed. If the proportion of a certain aggregate is not enough, the amount of aggregate can be increased intermittently to achieve the standard precision.

The characteristics of the continuous asphalt drum mix plant process are: dynamically metered and graded cold aggregate and stone powder continuously enter from the front of the mixing drum, then dried and heated by downstream heating, mixed with dynamically metered and continuously sprayed hot asphalt at the rear of the drum, and asphalt concrete is continuously stirred by drop mixing.

Compared with batch type hot mix plant, continuous hot mix asphalt trailer has cold aggregate drying and heating and mixing in one, so the process is simplified and the manufacturing and use costs are low. Dust is difficult to escape when mixing concrete, and it is easy to meet environmental protection standards.

However, since the heating of aggregates is carried out by hot air in the direction of material flow, the utilization rate of heat energy is low, and the water content of the mixed asphalt concrete is large and the temperature is also low. Simple and economical drying drums guarantee high production capacity and high quality of the finished product, with precise inspection of the raw materials.

As in conventional plants, the asphalt produced in the dry mixer drum is sent to storage silos and then unloaded into transport trucks for transport to the road construction site. It can be easily set up near road construction areas, allowing for rapid asphalt production and seamless integration into the construction process.

Continuous asphalt mixing equipment is currently widely used around the world, especially in North America, South America, France and other regions, accounting for a considerable market share. The production capacity of the whole equipment ranges from 20-60 tons/hour.

There are two different types of continuous drum mix plants: Co-current heated drum mixers (the simplest and cheapest type of plant) and counter-current heated plants (more efficient from a heat exchange perspective). Welcome to inquire drum mix plant price from us directly.

Original source: https://www.haomei-machinery.com/a/what-are-features-of-drum-mix-asphalt-plant.html

How to Remove Dust of Asphalt Hot Mix Plant

 The dust collector of asphalt hot mix plant is usually a closed steel structure shell, consisting of bag filter, ash conveying system, a fan and an electric control. The principle is to filter the dust-containing waste gas discharged from the asphalt production equipment through the fabric dust bag inside the dust collector box before entering the atmosphere.

 The main process of dust and smoke treatment in asphalt mixing plant includes:

1. The dust-containing waste gas discharged from the drum mixer or dryer enters the primary dust collector (inertial separator or cyclone dust collector) through the pipeline, and the coarse particle dust is removed by the primary dust removal.

2. The dust-containing waste gas processed by the dust collector slowly enters the bag filter through the air inlet, and the diffused airflow fills the entire filter chamber.

3. The dust-containing airflow passes through the dust removal filter bag through the negative pressure of the induced draft fan, and the dust-containing airflow passes through the filter bag while dust accumulates on the outside of the filter bag.

4. With the continuous accumulation of dust on the surface of the filter bag, when the resistance of the dust collector reaches the programmed value, the dust removal system periodically injects high-pressure air from the top of the dust bag, and the filter bag shakes violently and the dust falls into the hopper.

5. The clean air flow filtered by the bag filter is discharged into the atmosphere through the induced draft fan.

Because most of them are cement powder, coal ash powder, mineral powder and dust mixed with sand and stone, the dust particles are between 1.0 and 500 μm, and the difference is small. It is suitable to choose a type of dust removal material.

As a hot mix plant manufacturer, Haomei Machinery can customize the dust removal system according to the customers’ requirements. Welcome to leave message below to inquire asphalt mixing plant price.

Original source: https://www.haomei-machinery.com/a/how-to-remove-dust-of-asphalt-hot-mix-plant.html

What Are The Key Parts of Hot Mix Asphalt Plant for Sale

Hot mix asphalt plant for sale is a complete set of equipment for mass production of asphalt concrete,which is widely used to build highways, municipal road, airport and ports.

Asphalt Hot Mix Plant is mainly made up of batching system, drying system, combustion system, hot material lifting, vibrating screen, hot material storage bin, weighing mixing system, asphalt supply system, powder supply system, dust removal system, finished product bin and control system, etc.

There are two key parts: asphalt mixing system and electrical control system. Take Haomei asphalt hot mix plant for example. The main structure of the mixing machine adopts spiral single-arm mixing technology and integrated heat exchange technology, with high efficiency, energy saving and environmental protection performance as the design goals.

The two shaft-mounted geared motors are driven independently, the gears are synchronized, and the work is more stable. At the same time, key components such as wear-resistant linings fully take into account their versatility and the application of expansion interfaces, the product has a longer life, and upgrades and expansions are faster and more convenient.

In terms of electrical control, We adopt DCS control structure framework, and develops and applies a special management system EXP2010 to further improve the intelligence level of the whole asphalt hot mixing plant.

To meet market demand, besides the design of light and heavy dual-use burners, this asphalt mix plant can also be equipped with coal and natural gas combustion systems, which can effectively save energy and operating costs.

As hot mix asphalt plant manufacturers, we adhere to step further in front of others to provide the more advanced and Eco-friendly asphalt batch plant.

Original source: https://www.haomei-machinery.com/a/what-are-the-key-parts-of-hot-mix-asphalt-plant-for-sale.html