Hot Mix Asphalt Plant Flow Diagram

The hot mix asphalt plant flow diagram mainly includes raw material processing, drying and screening, weighing and mixing, fume treatment and finished product storage and transportation.
 

The following is a detailed introduction to the hot mix asphalt plant flow diagram:

1. Raw material treatment
- Mineral powder treatment: the mineral powder will be stored and measured to ensure the accuracy of feeding. Mineral powder as a filler for asphalt concrete, its quality and quantity has an important impact on the quality of the finished product.
- Stone processing: sieving and washing the stone to remove the impurities. Sieving is to divide the stone into particles of different sizes to meet the production requirements. Washing is to remove soil and impurities from the surface of the stone to improve the quality of the finished product.
- Asphalt heating: The asphalt is heated to ensure its fluidity. The heating temperature of asphalt needs to be controlled within a certain range, in order to avoid overheating leading to asphalt aging or too low a temperature leading to insufficient fluidity.

2. Drying and screening
- Stone drying: hot air furnace is used to dry the stone to remove the moisture. The dryness of the dried stone should meet the production requirements to ensure the quality of the finished product.
- Stone sieving: through the vibrating screen on the drying of the stone material grading, will be divided into different particle size of the stone material. The graded stone materials can be stored in different hot bins for subsequent weighing and mixing.

3. Weighing and mixing
- Weighing: According to the design ratio, the various raw materials are accurately weighed. Weighing equipment is usually used in a number of bins and feeding mechanism, through the control system of hot mix asphalt plant for accurate measurement of various raw materials. The weighing process needs to ensure that the proportion of various raw materials is accurate to ensure the quality of the finished product.
- Mixing: put the weighed raw materials into the mixer for forced mixing. During the mixing process, it is necessary to control the speed and mixing time of the mixer to ensure that the various raw materials are fully mixed. After mixing, the finished material can be transported to the finished product silo for storage through the hopper, or directly unloaded into the asphalt material transportation truck.

4. Smoke treatment
- Flue gas purification: In order to reduce the impact of the waste gas produced during the production process on the environment, it is necessary to treat the flue gas through desulfurization, dust removal and other equipment. The flue gas treatment equipment needs regular inspection and maintenance to ensure its normal operation and purification effect.
 

5. Finished product storage and transportation
- Finished product storage: Finished material after mixing can be stored in the finished product silo for subsequent use. Finished product silo needs to have rain, moisture, dust and other functions to ensure that the quality of the finished product is not affected.
- Transportation of finished products: When needed, finished products can be unloaded from the finished product silo and transported to the construction site by transportation vehicles. In the transportation process, the speed and bumpiness of the transportation vehicle need to be controlled to avoid segregation or damage of the finished material during transportation.
 

In summary, the hot mix asphalt plant flow diagram is a complex and delicate process, which requires strict control of the quality and quantity of each link to ensure that the quality of the finished product meets the design requirements. At the same time, it is also necessary to focus on environmental protection and energy saving to reduce the impact on the environment and achieve sustainable development.