The output product of a jaw crusher was studied by Olaleye [7] and Mu [8] in terms of how it varies with ore 40 body strength as well as using Discrete Element Modelling DEM techniques
·Jaw crushers are widely used in mining smelting building materials industry highways railways water conservancy and chemical industries and many other sectors crushing various materials with compressive strength within 320 Working Principle Jaw crusher mainly consists of a frame an eccentric shaft a large pulley a flywheel a movable jaw a side
Ore ranging from soft to hard UCS up to 250MPa; The graded crushing technology through the design of the crusher teeth shape teeth arrangement and installation form to achieve the feeder material pass directly or selected crushing and only materials larger than the product size will be crushed otherwise materials will pass directly
·•The jaw crusher needs to be in the closed circuit to achieve about 50% of the finished product rate The TCC sizer can achieve up to % of the finished product rate in an open crushing circuit which is % higher than that of the jaw crusher •The particle size of the products crushed by the jaw crusher are mostly in the form of flakes
·2 Reinforcement of the crusher is possible with the help of high strength crusher frame to crush very hard rock or ore lumps loads 3 It is very simple to adjust to prevent much of wear and also very easy to repair 4 Maintenance computerof the crusher is very easy II LITERATURE REVIEW A Jaw Crusher breaks minerals ores of high strength
·A jaw crusher is an indispensable tool in the mining and construction industries known for its power to fragment hard materials such as rock and minerals Comprising type of jaw crusher—the robust Single toggle and the efficient Double toggle—these hefty machines operate on the principle of compressing materials between a stationary
·A hard rock may take several crushing cycles of the crusher before it has been completely reduced in size The next one is the shape of the ore some shapes especially round ones are harder to break When the ore is round it is an indication that there are few fracture lines in it The absence of fracture lines is a characteristic of hard ore
Versatile The Double Roll Crusher crushes a wide range of material types reaching compressive strengths of up to 150 MPa and higher It is less sensitive to wet and sticky material than RollSizers and can take in larger feed sizes making it the optimal primary crusher for soft and medium hard rocks
The machines can be employed for medium hard material types up to 200 MPa compressive strength; for example coal ore limestone overburden and oil sands TAKRAF has developed and successfully installed the largest roll crushers worldwide for the Canadian oil sands industry in order to guarantee highest throughput requirements under extreme
This crusher series can be used as primary equipment for finely crushing medium hard brittle material such as coking coal small limestone gypsum alum brick tile etc The crushed material should have compressive resistance less than 150 MPa and surface moisture less than 15%
·types reaching compressive strengths of up to 150 MPa and higher It is less sensitive to wet and sticky material than RollSizers and can take in larger feed sizes making it the optimal primary crusher for soft and medium hard rocks Technical specification Application data Application Primary crushing Feed material Bauxite ore coal overburden
·of ore is one of world s most energy intensive stages and accounts for up to 40 percent of the total energy used in mineral processing operations More sustainable technologies & practices are required to make these hard variable and low grade ore bodies viable Metso has an extensive history of technological development
·Hammer crusher hammer mill is applicable for various hard and fragile materials such as limestone coal salt gypsum alum brick and tile etc limestone granite cobble dolomite bluestone iron ore construction waste glass cement clinker etc The compressive strength of materials should not be in excess of 150 Mpa Hammer
·2 Reinforcement of the crusher is possible with the help of high strength crusher frame to crush very hard rock or ore lumps 3 It is very simple to adjust to prevent much of wear and also very easy to repair 4 Maintenance of computerthe crusher is very easy II LITERATURE REVIEW A Jaw Crusher breaks minerals ores of high strength
·According to the different crushing principle and particle size of size the types of crusher is divided into many kinds and a variety of new types of crusher have been widely developed mainly
Reinforcement of the crusher is possible with the help of high strength crusher frame to crush very hard rock or ore lumps 3 It is very simple to adjust to prevent much of wear and also very easy to repair QU of up to 308 MPa may be over signed for softer fragmental Hence the weight of the swing plate is necessary to reduced [3]
·Size distributions of the crusher products from feed size classes of and 19 mm for various disc rotational speeds 330 550 and 830 r/ min offset of 10 mm and exit gap of 3 mm
·the ore hard ness and the mechanical fracture toughness of the rock being crushed in 1/2 the intense contact between the ore and the crusher components can produce premature wear of
DCJ jaw crushers are used for primary crushing of all kinds of aggregate and ore building materials such as reinforced concrete building debris bricks and asphalt blocks KDC secondary hydraulic cone crushers are used for the crushing of hard abrasive non sticky materials of compression strength up to 400 MPa quartz granite or
A jaw crusher is a type of primary crusher used in mines and ore processing plants The size of a jaw crusher is designated by the rectangular or square opening at the top of the jaws feed opening The working principle of a jaw crusher is straightforward the jaws of the crusher are positioned on an angle and the material is crushed as it
The crushing force is doubled compared to single toggle crushers and it can crush very hard ores The jaw crusher is reliable and robust and therefore quite popular in primary crushing plants the main factor is the maximum size of ore which the crusher will be required to handle and the throughput required Gyratory crushers are in
DCJ jaw crushers are used for primary crushing of all kinds of aggregate and ore building materials such as reinforced concrete building debris bricks and asphalt blocks KDC secondary hydraulic cone crushers are used for the crushing of hard abrasive non sticky materials of compression strength up to 400 MPa quartz granite or
·This study reports on the design optimisation of the swinging jaw crusher plate Jaw crusher machines are used in the mining and construction industry for crushing rocks and mineral ores to the appropriate sizes for direct application or further processing During the crushing process large and non evenly distributed impact forces occur resulting from uneven
