How Does a Hot Mix Asphalt Plant Work

1. How Does a Hot MixAsphalt Plant Work Abstract: The hot mix asphalt plant can be divided into many types:batch type hot mix plant, asphalt drum plant, mobile asphalt plant for sale, stationary asphalt plant. How does they work? Welcome to leave message below. Workflow of Batch Type Hot Mix Plant The hot mix asphalt plant refers to a complete set of equipment used for mass production of asphalt concrete. It is currently necessary equipment for the construction of highways, graded roads, municipal roads, airports and ports in many countries. The hot mix asphalt plant is required to have good stability. Because if it does not have good stability, the asphalt mixing plant cannot meet the requirements of the project in terms of quality and quantity. For road construction, only the qualified asphalt concrete can make the quality of road construction meet the actual requirements, so the stability of the asphalt mixing plant is very important. On the basis of having all the required functions, the equipment should be as simple as possible, and the overall operation needs to be reduced as much as possible, so that a lot of manpower investment can be saved during operation. How does the hot mix asphalt work? Take LB2000 batch type hot mix asphalt plant for example. 1. the central control room issues a start-up command. After receiving the relevant command, the relevant materials (aggregate, powder) are transported from the cold storage bin to the

2. drying drum through the belt conveyor for drying. The drying material will be then lifted to the vibrating screen for grading. 2. The sieved materials are transported to different hot material bins, and the respective doors are used to measure the relevant weight value through an electronic scale, and then put into the mixing tank, and then the hot asphalt is weighed and sprayed into the mixing tank. 3. The mixtures are fully mixed in the mixing tank and finally forms the finished product, asphalt. It will be transported by the bucket truck to the storage tank along the track and discharge into the transportation vehicle through the the unloading gate. 4. The conveying, drying, screening and other steps in the working process of the asphalt mixing plant are carried out in one go, and no pauses are allowed in the whole process. The mixing and weighing of the various materials and the finished product is all periodic. As an experienced hot mix asphalt plant manufacturer, Haomei Machinery has different kinds of hot mix asphalt plant includes stationary asphalt plant, mobile asphalt plant, asphalt drum plant and batch type asphalt plant. Working Principle of Asphalt Drum Plant The asphalt drum plant is a kind of continuous asphalt plants, which is of simple structure, low cost and convenient maintenance. The production capacity of the complete equipment ranges from 20 to 60 tons per hour. It has extremely low energy consumption. Modular design saves transportation and installation costs, and diversified configurations can meet different investment requirements. It is a right choice for road maintenance and small road construction projects. The drying and mixing drum is the core component of the asphalt drum plant. Its function is to

3. dry and heat the stone to a certain temperature, and mix the asphalt and stone into a qualified finished asphalt concrete. How doe it work? The aggregate of the appropriate particle size is continuously fed into the drying drum for drying and heating, and at the same time, it is mixed continuously together with the asphalt and additives that have been metered. The finished asphalt mixture is transported to the finished material temporary storage warehouse by a hoist, and then directly transported by a transport vehicle to the construction site for use. Th asphalt drum mix plant has the following features: 1. The heating and mixing can be completed continuously at one time, saving equipment cost and simplifying the working processes. 2. The equipment is simple and of high reliability. The quality of the finished material is stable. 3. It is of small size, less area, convenient installation and transportation. 4. It is very convenient to expand and upgrade to mobile asphalt mixing plant. As an asphalt drum mix plant exporter, Haomei asphalt drum plan has been exported to many countries such as South Asia, Kenya, Brazil, Mexico,etc. With rich exporting experience, we can arrange everything well for you. The Main Technical Parameters of Mobile Asphalt Plant For Sale There are some main technical parameters of the mobile asphalt plant for sale for your reference, which helps you make a better choice if you like to buy an asphalt batching plant.

4. 1. Standard operating conditions The standard operating conditions of the portable asphalt plant refers to that the ambient temperature is 20℃, the average water content of cold aggregate is 5%, the temperature of hot aggregate is 160℃, the cycle time is 45s, the atmospheric pressure is standard and the finished product is of medium grain. For the medium grained asphalt mixture, the maximum aggregate particle size is 16-19mm. 2. Structure According to the production process, it is divided into: batch type and continuous type According to the mode of transportation, it is divided into stationary asphalt plant and mobile asphalt plant for sale. 3. Design capacity The design capacity of the mobile asphalt plant is mainly refers to the capacity of the mixing tank. The design capacity varies from manufacturer to manufacturer, but basically there are 1000 kg, 2000 kg, 3000 kg, and 4000 kg. 4. Working period The productivity of portable concrete plant is determined by the capacity of the mixing tank and the working cycle. The working cycle refers to the time difference from the discharging of the mixing tank to the next discharging. Under standard working conditions, it is generally 45s. 5. Productivity It refers to the hourly output of asphalt mixing plant. For the batch type asphalt plant, the rated production rate is used to calibrate the production capacity of the equipment. For example, the rated productivity of the LBY-1000 portable asphalt plant is 80 t/h. 6. Installed power It refers to the sum of the rated power of all electrical equipment for a set of asphalt mixing plant. 7. Fuel consumption Fuel consumption refers to the weight of fuel consumed by the burner on the drying drum to produce 1 ton of qualified finished materials. 8. Emission index The environmental emission indicators of mobile asphalt plant has two aspects: one is the pollutant emission concentration, and the other is the pollutant emission blackness. Before building an asphalt mixing plant, you can first have a knowledge of the local environmental protection polices.

5. Which Type Of Hot Mix Asphalt Plants For Sale To Choose At present, the hot mix asphalt plant for sale includes batch type and continuous type according to the production process. Let’s have a look of their differences. Batch type hot mix plant The aggregate is supplied by the elevator to the rotary drying drum that removes moisture, and then it is sieved into several groups according to the particle size and stored in the "hot aggregate bin". After weighing, it is sent to the mixing tank and mixed with the powder and hot asphalt. The working cycle of one batch is about 45s.A hot mix asphalt plant with a mixing tank capacity of 1500 kg can produce 120 t/h. Its advantage lies in the high quality of the finished asphalt mixture and no waste of aggregate. Another advantage is that it can switch the specifications of the mixture as needed. Asphalt drum plant The continuous asphalt plant is known as the asphalt drum plant. The first two-thirds of the drying drum is dedicated to dehumidification. In the last third of the unit, inject the correct percentage of asphalt and mix all the materials thoroughly. The advantage of the asphalt drum plant is to reduce the hot mixing process to the most basic requirements. By eliminating most of the asphalt mixing steps, it can complete its work more economically.

6. Since the mixing process is continuous, they will also run at higher production rates depending on the drum size. However, according to its structure and workflow, only one hybrid design can be produced at a time. According to the mode of transportation, the hot mix asphalt plant can be divided into mobile asphalt plant for sale and stationary asphalt plant. It is easy to make choice. You just need to think about the two questions: Do you need to move your asphalt mix plant? If so, how often will it move? If you only need to move your equipment once every few years, a stationary asphalt plant will be a better choice.