Concrete blocks in construction waste can be crushed to make sand, and coarse and fine aggregates produced by crushing waste construction waste concrete and masonry by crushing equipment can also be used to produce building materials such as concrete, wallboard and floor tiles with corresponding strength grades, and can also be used for road construction if solidified materials are added.

Sand-making technology of construction waste crushing

1. The first stage of sand production from construction waste: primary crushing.

The raw materials of construction waste are conveyed to the jaw crusher by a vibrating feeder through a belt conveyor for preliminary crushing, and the crushed materials are screened by a vibrating screen, and those that do not meet the requirements are returned to the jaw crusher for crushing again;

2. The second stage of sand production from construction waste: secondary crushing.

The materials crushed by jaw crusher are transported by belt conveyor to cone crusher or impact crusher for secondary crushing, and then screened by vibrating screen, and those that do not meet the particle size are returned to crushing equipment for secondary crushing;

3. The third stage of sand making from construction waste: crushing and molding with sand making machine.

The raw materials of construction waste after secondary crushing are transported to the sand making machine (impact crusher) by belt conveyor for final crushing and molding, so that the grain size of sand and gravel is more uniform and the grain shape is good.

4. The fourth stage of sand production from construction waste: packaging and storage.

Drying the finished sand, and finally packaging and storing.