Due to the advantages of flat surface, no transverse joints, low noise, comfortable driving, good wear resistance, low vibration, short construction period, easy maintenance and maintenance, asphalt pavement is increasingly promoted and applied. Taking into account the impact of factors such as transportation costs, management costs and equipment acquisition costs, whether the mobile asphalt plant can be quickly established is an important factor in determining whether the project can be put into production as early as possible and ensure the progress and quality of the project.
Due the asphalt mixture with a certain temperature, asphalt mixing Mobile asphalt mixing plant is also called as the mobile type plant with with hot mixing. The construction of mobile asphalt mixing plant mainly includes site selection, planning and construction and demolition, commissioning and putting into operation of asphalt mixing building.
Location of Mobile Asphalt Mixing Plant
The location of the mixing plant should not only consider the impact on the surrounding residents and the environment, but also consider economic rationality. Therefore, when choosing a site, the following factors should be considered:
- The address of the mixing plant is reasonable from the asphalt pavement paving construction site, and it is best to build near the midpoint of the construction section, and the transportation is convenient, thus saving the transportation cost of finished materials and improving economic benefits. At the same time, consider whether the source of water and electricity is convenient.
- There should be a certain distance from residential areas and ecological production areas to minimize the impact of noise, dust and other impacts on the surrounding environment, avoid causing unnecessary environmental complaints, and establish a good construction image and corporate image.
- The site can provide enough space for the placement, storage and operation of the mixing plant, with good geological conditions, and the leveling and curing costs of the site are lowest.
Site Planning and Construction of Mobile Asphalt Mixing Plant
The site planning of the mixing plant should be scientific and reasonable, so that the utilization and effectiveness of the site can be maximized, and the production needs can be met as much as possible. Do a good job of site planning to consider the following factors:
- The placement of asphalt mixing plant. The asphalt mixing plant should be placed in the geologically solid section of the site as far as possible to reduce the workload of site solidification. For the cement concrete foundation that is required to be built on the foot of the mixing plant, it is necessary to ensure that the bearing capacity of the concrete meets the design requirements.
- Planning and construction of the storage yard. According to the variety requirements of asphalt concrete mixture produced, the storage yard is divided reasonably to ensure reasonable spacing and to meet the requirements of different varieties. At the same time, identification and isolation measures should be taken between different stacking areas to avoid mixed stacking of materials of different specifications, thus affecting the production schedule and finished product quality. The foundation of the pile area should be cured to prevent the driving from slipping and sinking and reduce dust.
- Planning of routes of raw material transport vehicles, routes of finished material transport vehicles and production loading routes. Under the permitted conditions of the site, the cross-operation of vehicles should be avoided as much as possible to improve the turnover speed of vehicles and driving safety.
- Ensure that there is a suitable distance between the equipment and components. For example, diesel tanks are placed at a certain safe distance from heat sources and fire sources; The asphalt tank is placed as close to the mixing floor as possible to the electronic metering system, reducing pipeline distance, saving pipeline construction costs and ensuring that the asphalt circulating pump has sufficient head.
Demolition of Asphalt Mixing Building
Usually, in the process of setting up a mobile asphalt mixing plant, the demolition speed of the asphalt mixing building is a key factor in determining the progress of the formation. In order to economically and quickly complete the demolition of the mixing building, the key is to do three aspects of work:
- Formulate detailed and scientific demolition plans. According to the characteristics of the equipment, plan the disassembly sequence of the mixing plant.
- Select the right disassembly team. The technical level of the disassembly team directly affects the disassembly progress of the mixing plant.
- Strengthen on-site control, reasonable arrangement of disassembly machinery and personnel, so that the disassembly process consumes the least manpower and machinery.
- Do a good job of equipment transportation safety, to ensure that the equipment is not damaged and the parts are not missing.
Commissioning and putting into operation of asphalt mixing plant
After completing the installation of the asphalt mixing plant, commissioning can be carried out. First of all, it is necessary to test the pressure of the pipeline to ensure that there is no leakage between the weld joints of the pipeline and the thermal oil pipeline and the asphalt pipeline. If the leakage is found, it should be repaired in time and tested again until the leakage is no longer found. Secondly, the mixing plant is fully maintained, and the power supply system and control system are tested for necessary reliability, and then each mechanical part is tested by point-motion control to check the effectiveness of control and whether the steering of each motor is correct. After all the point control is successful, the test run of the whole mixing building is carried out by automatic control. Then, the accuracy of electronic measurement is validated and calibrated. Finally, the screening test and grading design of aggregate are carried out, and the sample production is carried out, and the finished material can be put into production after passing the inspection.
