cobblestone sand and gravel production line
introduction about cobblestone
Cobblestones are typically either set in sand or similar material, or are bound together with mortar. Paving with cobblestones allows a road to be heavily used all year long. It prevents the build-up of ruts often found in dirt roads. It has the additional advantage of not getting muddy in wet weather or dusty in dry weather. The fact that carriage wheels, horse hooves and even modern automobiles make a lot of noise when rolling over cobblestone paving might be thought a disadvantage, but it has the advantage of warning pedestrians of their approach. In England, the custom was to strew the cobbles outside the house of a sick or dying person with straw to dampen the sound.
Cobblestones set in sand have the environmental advantage of being permeable paving, and of flexing rather than cracking with movements in the ground.
In the Finger Lakes Region of New York State, the retreat of the glaciers during the last ice age left numerous small, rounded cobblestones available for building. Pre-Civil War architecture in the region made heavy use of cobblestones for walls.
cobblestone gravel production process
cobblestone sand and gravel production line consists of feeder, jaw crusher, impact crusher, vibrating screen, belt conveyor, focus electric control and other equipment. It can be used for aggregate and gravel crushing operation of hard cobblestone, granite, basalt, river gravel, slag and other materials.
Crushing is often divided into three stages, namely, primary crushing, secondary crushing and fine crushing. jaw crusher, gyratory crusher are suitable for primary crushing. Standard cone crusher is suitable for secondary crushing. Short head cone crusher is suitable for fine crushing.
jaw crushers are mainly used as primary crushers. Their main purpose is to produce material that can be transported by belt conveyors to the next crushing stages. The crushing takes place between a fixed and moving jaw which is mounted on a pitman, and its motion it set up by the movement produced by the eccentric shaft at the top of the pitman.
After primary crushing, the materials were fed to a ball mill for secondary crushing.
After grinding by a ball mill, the cobblestone fines are fed into spiral classifier. By the principle of different solid particles have different sedimentation rate in liquid, spiral classifier washing the mixture of ore and grading them.
After washing and grading, mineral mixture were fed into the magnetic separation. Due to the different susceptibility of various minerals , magnetic and mechanical force can separate the magnetic material from the mixture materials.
After magnetic separating, minerals particles were sent to the flotation separation. Now ,put into different chemicals according to mineral characteristics ,so you can make the minerals and other substances to be separated .
After the minerals being separated, they were taken into thickener for initial concentrating. Then, after drying, you can get dry materials.
production equipment recommended
PE series jaw crusher: mainly used for medium-grained crushing of a variety of ores and bulk materials, whose compression strength not more than 320 Mpa, and it can be divided into coarse broken and fine broken.
Vibrating screen: It is features of reliable structure, high screening efficiency, low noise, durability, easy maintenance, use of safety. It is widely used in product classification of mining industry, building materials industry and so on.
Vibrating feeder: It can feed materials into crushing machine continuously and evenly in the production process, and then crude screen materials.
The cobblestone production line features of high degree of automation, high efficiency, low operating cost, high-yielding, uniform finished product size and good grain shape. The cobblestone production line configures equipment mainly according to the specifications of stone, stone production and stone applications. According to the case of production site, we will provide customers with comprehensive planning process and technical support, support non-standard components on the base of actual installation conditions.
Patiko (0)