In recent years, whether it is house demolition, road renovation or community reconstruction, more and more concrete blocks have been left behind. The often said concrete is the basic building material for road construction, bridge construction and building construction. It is basically formed by mixing sand, stones, cement and other chemical glues with water. So what can the demolished concrete blocks do? What is the use of broken stones? Can they be used as new aggregates?
What is the purpose of crushing concrete blocks into stones? Generally speaking, the large concrete block is about 50 cm, and the small one is about 5 cm. After being broken, it can become stones of different sizes. The ones larger than 4.75mm are called coarse aggregates, which are also made of stones, less than 4.75mm is called fine aggregate, which is sand. The role of sand and gravel aggregate in concrete is very important. It acts as a basic framework, transfers stress, resists compression, and can support loads even without cement paste. Sand is mainly used to fill the gaps between stones and increase their density. While restraining shrinkage and preventing cracking. Good concrete sand and gravel aggregates should have sharp edges and corners and a three-dimensional shape, so that the various materials in the concrete can interlock with each other, increase the strength of the building, and improve the quality of the building. So what is the excellent aggregate crushing equipment?
Stationary crushing production line: jaw crusher + impact crusher, construction waste shear + impact crusher
"Jaw crushing + impact crushing" is a common crushing mode. Because the concrete block itself is not high in hardness, but contains steel bars, soil blocks and other materials, the excavated particles can be screened by a vibrating feeder first, and then crushed by the jaw crusher. The steel bars contained in it are removed by the iron remover, and then crushed in progress by the counterattack, and processed into the required materials. The second solution is "construction waste shear + impact crusher". The function of the construction waste shear and the jaw crusher is to effectively strip out the steel bars for subsequent reprocessing. The unique tooth mechanisms will not the materials contain steel bars, wood, rags, etc., which cause congestion at the inlet and outlet of the equipment, and are then crushed during the counterattack and processed into the required materials.
Mobile crushing production line: mobile crushing station (tire type + crawler type)
The mobile production line is based on the fixed production line process, but the entire production line is placed on a mobile frame, making the entire production line more convenient to move, more flexible in transition, and more suitable for the current working mode. In order to make better use of recycled aggregates and solve the status quo of construction waste, it is basically based on the principle of "disposal nearby" to sort, remove or crush the waste in construction waste so that renewable resources can be reused. Coupled with the flexibility of the combination, whether it is "crushing before screening" or "screening before crushing", and the crawler mobile crushing station can ensure that the construction waste is crushed and reused with minimal waste. At the same time, because of its strong mobility, it saves a lot of infrastructure and relocation costs. The crawler-type mobile crushing plant can be recycled after crushing construction waste, turning waste into treasure, reducing construction waste costs, while saving energy for the country, conforming to the sustainable development strategy advocated by the country, conforming to the concept of environmental protection, and improving economic and social benefits.