The scraper (box) is usually associated with the rapid, low-cost excavation of earth works or unconsolidated overburden, soils and sands and gravels. It comprises a box or bowl mounted on four wheels fitted with pneumatic fires which is either towed by a tractor or articulated and motorized. The front of the box is open and the leading edge is fitted with a blade which scrapes the surface of the mineral when the edge is lowered. To facilitate movement of material into the box (and reduce compaction of soils) the box may be equipped with a scraper elevator. It is not suitable for excavation of 'hard' rock, blasted rock or gravels containing boulders. The box is discharged by a ram acting upon a pusher plate.
- High Performance Concrete Production Line
High performance concrete is made through conventional technology and its strength grade is from C50~C80. It is composed of cement, sand, stone, superplasticizer and other additives, fly ash, superfine slag, silica fume and other mineral admixtures....
- Andesite Manufactured Sand Production Line
The Andesite Manufactured Sand Production Line designed by Camelway Machinery has the advantages of reasonable configuration, high automation degree, low operation cost, high crushing ratio, low energy consumption, high productivity and simple maintenance...
- The Aggregates Production Line for Highway Construction
In the production line, Camelway technical staffs mainly configure the vibrating feeder, jaw crusher, hydraulic cone crusher, circular vibrating screen, vertical shaft impact crusher(sand making machine), belt conveyor, etc....
- Hard rock Crushing Plant
The following figure depicts the flowsheet for a plant producing various forms of dry (uncoated) roadstone including high PSV (+60) surface chippings. The produ...
- Mobile Crushing Plant for Building Waste Processing
Due to the construction wastes usually were piled up concentratedly in relatively limited space with poor traffic condition, Camelway Machinery recommends wheel mobile crushing equipment to crush and screen the construction waste....