the company liming heavy industry offers a full of crushing-and-screening plant with unparalleled efficiency, reliability and performance for processing, crushing-and-sorting and crushing rocks

　　the main raw material in the production of many building materials are rocks.

　　the main physical-mechanical properties of rocks, affecting the technical parameters of the processing machines, refers strength, fragility, abrasion and fineness.

　　strength - property rock to resist the destruction under the influence of internal stresses as a result of demand or other reasons.

　　the fragility of - the property of rock fracture under impact loads without credit plastic deformations.

　　grinding rock

　　grinding process is characterized by the particle size of the material received by milling, grain size and grain composition the product of grinding and degree of grinding.

　　common building materials, received as a result of the grinding process, are non-metallic materials (crushed stone, gravel, sand). the production plants of non-metallic construction materials are widely used in industrial, civil, rail, road and hydraulic engineering construction.

　　due to wider area of application of nonmetallic materials of the requirements of consumers to the quality often differ significantly, which causes the necessity to use a variety of equipment, even when the processing of one and the same original of the mountain mass.

　　crushed stone is produced from natural stone by fragmentation of blasted rock. requirements to rubble for construction work outlined in gost 8267-64. on these requirements, crushed stone is divided into factions: (3) 5-10; 10-20 (25); 20 (25)-up to 40 (50 and 60); 40-70 mm. figures in brackets denote the size of the grains of the fractions of crushed stone, intended for the automobile roads and railway ballast bed. for hydrotechnical construction provides additional fractions: 40-80 and 80-120 mm.

　　equipment for grinding rock

　　our company liming heavy industry offers you the jaw, rotary, cone mobile crushing and screening plants crawler for grinding of rocks, and also the station crushers, as jaw, rotary, cone and vertically-mill and centrifugal-impact crushers. jaw and cone crushers allow to receive secondary crushed stone bottom-shaped, and rotary, vertical mill and centrifugal-impact crushers produce crushed stone or sand cube-shaped forms.

　　processing of rocks at the site or export to specialized sites depends on the specific situation. if the first place is time, the scheme is applied to transportation of waste. if the customer is more important economic efficiency, the work can be done on the spot, since the secondary building materials can be used immediately on the spot or later realize.