Gold Mining

Tray Type Centrifugal Gold Separation Machine LP600 also called gold panning machine in pioneers machinery factory as heavy medium separation appliance, is supported with hollow shaft and driven by power, with its major part being of cauldron disk. Slurry is transferred via slurry pump to the separation disk center where ore grains are acted by both gravity and inertial centrifuging force. During the course of movement by the ore grains upwards along the center of disk surface, when angle is greater than 45 degrees, the centrifugal component force in the direction of slope will gradually decrease while gravity component force will gradually increase. When it is up to a certain level, the two forces will reach balance, and near the point of balance easily develops a heavy mineral sediment layer. Tailings are discharged from edge at the upper disk, and concentrates after stop of feeding ( shut-down), are washed with water before being drained by hollow shaft. The major structure of the machine follows the technical data about gold washing from KNUDSEN, Australian mining company. The machine is primarily applied for washing and separating placer gold at a size of minus 4mm and is capable of recovering natural gold grains at sizes of over 15 um. In operation, inner hole of the center is blocked using plug with its drainage and collection at a regular basis. It can be operated intermittently or continuously, with the ore feeding and water adding simultaneously. The rotation direction is anti-clock( as indicated by arrow) at a speed of 70-110 r/pm. Ratio between solid and liquid for slurry is 1/4-2/3. The machine can be operated by power individually and multi-machines also can be operational in a combined or pedal manner ( without power supply ).

Machine size(mm):2800*1350* 1150 Processing capacity:1-5t/h Diesel engine:Portable Diesel Engine with CE Certificate Water pump:2inch with water pipe Machine size(mm):2800*1350* 1150

Dimension(L*W*H):7800*3000*4000mm Processing capacity: 140-200t/h Diesel engine generator:45KW Pump power:22KW Dimension(L*W*H):7800*3000*4000mm

Shaking tables are designed to wet gravity-based separation of minerals and other granular materials. There are many applications where the concentrating table is of particular value and cannot be equaled for economical and efficient performance. Application Shaking tables are used to treat a great variety of materials, ranging from heavy material, ranging from heavy sulphides (specific gravity 7.5) to coal (specific gravity 1.3), at some cases below 50um. Export container load

Gold centrifugal concentrator is a new type of gravity mineral processing device., it can be used not only for placer gold mining, but also for hard rock mining to recover the natural gold, but also used to recover gold from the old tailings. It is widely applied on recovering free gold in all particle size ranges, especially for recovery of fine gold which is lost during the operation of the gravitational concentrators (sluice boxes and jigs). Test showed that the machine is very effective for separating monomer gold in vein gold deposits as replacement of mercury plate. The recovery can be as high as 99%, the cleaning up cycle is 1~4 hours, and the upgrade ratio is up to 1, 000 times. Especially for the case in recovering the natural gold in lode ore with 65% of the ore having a milling size of ¡ª0. 074mm, the recovery for the natural gold is expected up to 98%. For those natural gold of 0.004mm in particle size, the recovery is 97% The gold centrifugal concentrator can treat particle sizes from below 10 microns up to a maximum of 6mm and is most commonly used for recovery in gold and platinum. Other recovery uses include mercury, palladium, tantalum, copper, silver and diamond indicator minerals. Structure and working principle The machine is operated by motor via belt driving draft to make liner rotate at a high speed. Slurries are delivered to liner through feed pipe and are subject to stronger process of separation under the action of centrifugal force. Heavy mineral remains in the lattice chute of liner and light mineral is drained via tailing chute. Concentrate is discharged through outlet after one shift operation and shutdown of the machine. Technical parameters Model Power Capacity Slurry water Jet water Concentrate Kw T/h L/min L/min Kg/shift Stlb20 0.75 0.5~1.0 16 30 1~2 Stlb30 2.2 2~3 120 80 8~15 Stlb60 4.0 10~12 400 250 20.

Description Rock hammer crusher can crush ore which is below 50mm or the tailings, middlings which in the uncompleted ore. And break up the useful metal from the ore, depending on the requirement of factory, it can crush the mineral particles in 1 to 180 mesh, and separate them in the shaking table. They are suitable for the small factory, and same times can take place of ball mill in some degree, Easy installation, easy operation, less investment, fast effect. The rock hammer crusher consist of rotor which with hammer, and the rotor consist of spindle, disk, pin and hammer. The motor drives the rotor to rotate at a high speed through the belt, the material enter the machine through the feeding port the rotating hammers with high rotation speed are crushing them, the small size mineral was discharge through the sieve and the large size still was crush and beat in the sieve until the crushed products meeting the required size can be discharged by the outlet and become the final products. Main Technical Parameters Model Capacity (T/h) Feeding Size (mm) Discharge Size (mm) Power at user option Motor (Kw) Diesel 200Ã?500 1-2 â?¤50 â?¤1.8 15-18 24 300Ã?500 3-6 â?¤50 â?¤1.8 18-22 30 400Ã?600 5-10 â?¤50 â?¤1.8 25-30 45 Rock Hammer Crusher

Description The ball mill is a key equipment to grind the crushed materials, and the ball mill is widely used in powder-making production line including cement, silicate, new-type building material, refractory material, fertilizer, ore dressing of ferrous metal and non-ferrous metal, glass ceramics, etc. According to discharge in different ways, the ball mill can be divided into gate ball mill and overflow ball mill. The gate ball mill is enforced discharging, relatively the discharge would be coarser, but the capacity would be higher, usually the gate ball mill used for primary grinding, the overflow ball mill used for secondary grinding. The ball mill is a horizontal rotating device transmitted by the outer gear. The materials are transferred to the grinding chamber through the quill shaft uniformly. There are ladder liner and ripple liner and different specifications of steel balls in the chamber. The centrifugal force caused by rotation of barrel brings the steel balls to a certain height and impact and grind the materials. The ground materials are discharged through the discharging board thus the grinding process is finished.

Description Jaw crusher has the features of great crushing ratio, uniform size of products, it mainly used to crush kinds of mining stones primarily, it can be used to crush material its compressive resistance not more than 320MPa. The jaw crusher is widely used in mining, metallurgical industry, building material, highway, railway, and chemical industry. The motor transmits power through belt, drives the moving jaw do periodic motion to the fixed jaw surround the eccentric shaft. The angle between toggle plate and moving jaw increases when moving jaw moves up. So the moving jaw closes to the fixed jaw. The stuff will be crushed in this process. The angle of Jaw Crusher between toggle plate and moving jaw decreases when moving jaw moves down, the moving jaw of Jaw Crusher moves away from fixed jaw by the pulling of rod and spring, the products after crushing will be discharged from the outlet of Jaw Crusher. Advantages and Characteristics 1 Simple structure, easy operation and maintenance, the downtime is greatly reduced; 2 Moveable jaw assembly adopts high quality casting steel, heavy eccentric shaft adopts forging steel processing, the machine with transcendental stability; 3 Adopt more durable eccentric shaft bearing, so the bearing capacity is big.

The crushing effect is good, good sealing performance, no adhesion or blocking material, with clean, widely used in various industries crushing sample preparation work.