The Development Progress Of Crushing Equipment

The development progress of crushing equipment

The earliest crushing machine with continuous crushing action was invented by the Lu Ban living in the late Spring and Autumn Period. The other with continuous grinding action was the roller grinding machinery, it appeared later. 200 AD later, Du Yu and other Chinese had developed the water-mill based on the foot pestle, and the water was the driving force, which improved production efficiency to a new level. These machines were used for grain processing, but also extended to other materials on the crushing operations.

Modern crusher had been created after the gradual improvement of steam engine and electric motors. In 1806 there appeared steam engine-driven roller crusher. In 1858, Blake, in the United States, invented the jaw crusher. Rotary crusher was developed in 1878, the production efficiency was higher than the jaw crusher with intermittent crushing action. In 1895, American William invented impact crusher which was lower energy consumption.

Meanwhile, the grinding machinery also had a corresponding development. In the early 19th century, ball mill had been widely used. Rod mill with uniform size of the discharge was invented based on the development of ball mill in 1870. In the 1930s, Americans and Germans had developed a roller bowl mill, roller mill and other vertical shaft mill.

Many engineering machinery companies specialize in producing ultra-fine grinding and screening equipment for steel slag processing. For instance, the European version jaw crusher vertical milling machines and other equipments. In China, one company has established a successful steel slag crushing magnetic line which can handle 1 million tons of slag. To have the targets of having all the slag processed, recycling, circular economy, emissions-reduction, another company invested about 8 million yuan (about $123,0000) on a steel slag crushing magnetic line. And they purchased jaw crusher, cone crusher and Symons cone crusher from engineering machinery company. New production line was designed and installed by them.

The magnetic line is a fully automated production, more scientific and rational, easier to use, greatly improving the productivity of labor. Production line and delivery system installs the dust removal device, effectively reducing the dust emissions. The entire production process is formed by two jaw crusher, a fine break CS Symons cone crusher, five iron, five screening and other components. Because the line has good ability of magnetic separation and recovery of ferrite, the steel production greatly is improved.

by: nicole

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