Asphalt pavement milling material crushing and screening equipment is a device that crushes and excavates old asphalt. The crushing and screening equipment is used to crush the mined rocks and screen them according to the specified size to obtain crushed stone particles that meet quality requirements. When using asphalt pavement milling material crushing and screening equipment, it is necessary to maintain the equipment properly, otherwise it will reduce the service life of the equipment. What is the principle of asphalt regeneration for asphalt pavement milling and screening equipment?
Cleaning of asphalt milling material crushing and screening equipment
Special attention should be paid to the cleanliness of the equipment. If dust enters the equipment for a long time, it will cause damage to the internal parts of the equipment and also damage the lubricating oil film, resulting in the loss of lubrication and increased wear of the equipment. Secondly, it is necessary to ensure that there is no accumulation of dust, oil, oil, water, electricity, dust, etc., so that the service life of the equipment will not be reduced. As an operation and maintenance personnel, in order to ensure the normal operation of the equipment, it is necessary to understand the basic principles of the equipment, do a good job in the maintenance and upkeep of the dust removal equipment, and timely maintain the equipment and clean the pipelines. In addition to the proper use and adjustment of the dust removal equipment itself, attention should also be paid to the adjustment of the combustion system air volume, changes in the negative pressure of the drum, and many other issues in order to fully and completely burn the asphalt pavement regeneration equipment, so that the exhaust gas contains less dust and truly achieves environmental protection and energy conservation.
Principle of asphalt regeneration
Due to the long-term exposure of asphalt pavement to sunlight and rainwater, the internal chemical molecules of asphalt undergo changes. Therefore, it is necessary to regularly repair or renovate asphalt to prevent the occurrence of car accidents. In the process of asphalt renovation, old asphalt can be re mixed with rejuvenators, new asphalt materials, new aggregates, etc. in a certain proportion to obtain a recycled asphalt mixture that meets certain road performance requirements. Because asphalt material is a mixture of several components such as oil, resin, and asphaltene, and a certain component of asphalt, such as oil, is also a mixture of hydrocarbons with varying molecular weights. So according to the principle that asphalt material is a mixture, by blending several different components, a new asphalt mixture material can be obtained.
The regeneration of old asphalt materials is essentially based on the principle of producing blended asphalt, adding a low viscosity oil (rejuvenator) or an appropriate viscosity asphalt material to the aged asphalt for blending, so that the blended recycled asphalt has suitable viscosity and required properties for use.
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