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With the rapid development of urban economy and society, more and more construction wastes are generated in cities, which not only cause certain environmental pollution, but also occupy a large amount of urban land, and it is also difficult to deal with. Faced with this situation, mobile crushing stations have emerged as the times require, and their advantages such as mobile, high throughput and easy operation have become more prominent, and they are well-suited in the application of construction waste treatment.
Construction waste refers to the muck, spoil, waste, residual mud and other waste generated during the construction, laying or dismantling and repairing of various buildings, structures and pipe networks by construction, construction units or individuals. According to the source classification, construction waste can be divided into engineering waste, decoration garbage, demolition garbage, engineering mud, etc.; according to the composition of components, construction waste can be divided into muck, concrete block, crushed stone, brick and tile, Waste mortar, mud, asphalt blocks, waste plastics, scrap metal, waste bamboo and so on. At present, there are a lot of construction waste in the city. These materials have no effect on the building itself, but they must be effectively treated and promoted as comprehensive reuse of construction waste.
Construction waste is not a real waste, but a “golden” that has been misplaced. After sorting, rejecting or smashing it, it can be reused as a renewable resource.
1. Use waste concrete and waste masonry to produce coarse and fine aggregates, which can be used to produce concrete, mortar or other building materials such as blocks, wallboards and floor tiles.
2. After adding solidified materials to the coarse and fine aggregates, it can also be used in the road pavement base layer, using waste bricks to produce aggregates, which can be used to produce recycled bricks, blocks, wallboards, floor tiles and other building materials;
3. The muck can be used for road construction, pile foundation filling, foundation foundation, etc.;
4. Abandoned road concrete can be processed into recycled aggregate for the preparation of recycled concrete.
According to the characteristics of large transportation and transportation cost of construction waste materials, the general production line uses mobile crushing and screening equipment. The mobile crushing station is equivalent to a mobile small crushing processing plant. Facing the complicated and complicated construction waste storage place, the equipment can be directly driven into the production and processing site. Generally, the mobile device and the crushing device can be installed according to the needs of the user, such as a high-performance jaw crusher, a cone crusher, a circular vibrating screen, etc., which can be used for the mobile crushing station. In view of the characteristics of construction waste, materials such as unbreakable steel bars are screened in advance, and then crushing equipment is used for crushing, shaping, screening, and the like. The finished product after final processing can be used for pavement filling of railways and highways, and for making concrete aggregates. In the whole process, the steps of transferring and transporting the original materials are avoided, and the finished product can also be directly transported by the transport device into the transport vehicle, which greatly reduces the transportation cost.
In the process of urbanization, garbage as a product of urban metabolism was once a burden of urban development, and many cities have had a situation of garbage siege. Today, garbage is considered to be an inexhaustible “urban deposit” with development potential and a “misplaced resource”. This is not only the deepening and deepening of the understanding of garbage, but also the inevitable requirement of urban development. Therefore, mobile crushing stations will play an increasingly important role in the construction of construction waste.