gold wash plant
Material is loaded into the plant feed hopper through a static scalping grizzly with 75 mm bar spacing. Oversize is to be periodically removed manually from the grizzly. Undersize feed material is washed into the scrubber feed chute by water jets strategically placed in the feed hopper and by a manually operated water monitor. Water is piped from an on board water manifold system that supplies water to the complete plant from the customers primary water supply.
Material is scrubbed in this gold wash plant to let clays and silts dispersed into the slurry. Slurry is discharged over the double deck vibrating screen. Oversize (+10mm) from the vibrating screen is discharged via a chute to ground level where it can be removed by the customers mobile equipment or by the clients conveyor system. Product from the bottom deck oversize (-10mm + 2mm) is discharged onto the sluice, complete with riffles and fiber mats, where coarse gold will be recovered.
The screen undersize (-2mm) is pumped from the screen undersize hopper to the concentrator feed box/splitter. The concentrator feed box services a dual purpose as it regulates feed to the concentrators by flowing excess slurry directly to the sluice when required and it serves as a manual by-pass system during the concentrator rinse cycle. Feed from the concentrator feed box flows directly into the twin i350 centrifugal gravity concentrators.
Tailings from the concentrator are directed to the inlet side of the sluice to aid the oversize material (-10mm +2mm) in flowing down the sluice to the final tails area. Concentrate from the twin i350 concentrators is directed to a wheeled storage tote which can be easily removed and towed to a final location for final upgrading and smelting. Concentrates from the sluice need to be removed periodically washed and added to the gravity concentrate.
A scrubber is not a trommel and a trommel is not a scrubber. The two are quite different and quite inefficient when incorporated in the same mechanism. A rotating screen needs a relatively low RPM to allow the fines to pass through the screen. An effective scrubber needs a relatively high RPM to lift the material higher, turn the material over and to input energy into the scrubbing action between the larger rocks and the clay material. Comparatively, a scrubber will have at least twice the horse power as the same dimension and capacity trommel.
A scrubber is a high RPM autogenous mill. A scrubber will rotate at 75% of the critical RPM. The critical spped RPM is the RPM required for the material to cling to the wall and rotate with the drum without falling. A scrubber uses the large rocks to break up the finer material in the same way a ball mill uses steel balls to break up ore.
When the supply pump is located near the concentrator a 2 HP centrifugal pump is generally sufficient.A 3 NPT connector is supplied at the concentrator. This connector reduces to the 2.5 feed hose internal to the machine. 10 tph solids at 20%/80% solids/water will gravity feed through this hose. The concentrator has the capacity for 15 tph solids, but may need to be fed by a pump to achieve this capacity.
Each concentrator arrives with a y-strainer installed in the plumbing manifold. This is only intended to protect the concentrators bowl from becoming sanded with either sand or organics. This strainer is not sufficient to filter any measureable quantity of solids or organics from the water.
If you do not have a clean water supply, an external filter will be required. Irrigation type filters are economical and available around the world. 50 mesh is recommended. They have large filters and high capacities. Recommended brands are Jain, Amiad and API.
It is important to feed a well mixed slurry to the concentrator. This is generally not an issue with alluvial mining, but with hard rock milled ore, it is possible for the slurry to clump leading to poor gold recovery.
Tails flow by gravity from the concentrator. When installing your concentrator you will have to consider if you have enough vertical fall after the concentrator for the tails to flow freely from the machine. Each concentrator has a 4 victaulic fitting.
jaw crusher - manufacturers & suppliers in india
GIDC Vatwa, Ahmedabad
Plot No. 291/2, Pancharatna Estate, Opposite Shayona Industrial Estate, Near Ramol Cross Road Near Ramol Over Bridge, Phase 4, G. I. D. C., Vatva, GIDC Vatwa, Ahmedabad - 382445, Dist. Ahmedabad, Gujarat
crushers - retec equipment
The Sandvik QJ341 mobile jaw crusher features a 1,200 x 750mm (47 x 29 in.) jaw opening, built to tackle the most difficult applications with ease. It has been designed to meet the needs of the operator seeking a high performance mobile jaw crusher which is both reliable and durable. With a large feed opening and unique high crushing speed it is capable of delivering high outputs with excellent reduction ratios. In addition to this, the equipment can start under load, which enables maximum uptime and productivity.
The powerful jaw crusher is capable of a variety of tasks with its large under-belt clearances, and is equipped with a hydraulic raise and lower facility on the main conveyor as standard. The units jaw system which has been around for 30 years, the C12 jaw box allows the user to crush in forwards or reverse, allowing them to crush the hardest and stickiest of materials.
This game changing Dual powered 19.5 tonne The tracked jaw crusher has a whole host of extras, including full electric plug-in facility, reverse crush and Pre screen to name a few. The new compact ROCO R9 design has a big attitude and it is specifically designed to deal with the day to day crushing of recycled materials e.g. Bricks, Blocks, Slabs including hard rock applications and concrete with Re bar with its unique designed iron bender apron plate with large clearance under jaw for tramp material.
Even in the 20-tonne class, the REMAX 200 does not omit features that have already proven themselves for decades on much heavier systems. The electric / diesel-electric drive concept as well as the discharge chute under the impact crusher, which is absolutely essential for the demanding use in recycling, are also part of the standard equipment, as is the drive engine with the latest exhaust emissions stage 5.
Thus, the caterpillar-mobile system, in the basic version with 22 tons and the optimized transport dimensions, is the most compact and consequently the most mobile machine of the successful REMAX series.
THROUGHPUT CAPACITY [t/h]]: up to 250
INTAKE OPENING[in]: 25.59 x 37.79
FEED MATERIAL SIZE[in]: 0-19.7
WEIGHT [lbs]: 50265.4
WITH OPTIONS [lbs]: 58422.5
TRANSPORT DIMENSIONS LxWxH [ft]: 30.51 x 8.2 x 9.84
WITH OPTIONSLxWxH [ft]: 44.15 x 9.02 x 9.84
THROUGHPUT CAPACITY [t/h]]: up to 300
INTAKE OPENING[in]: 41.0 x 29.9
FEED MATERIAL SIZE[in]: 0-27.6
WEIGHT [lbs]: 65.476
WITH OPTIONS [lbs]: 83,775
TRANSPORT DIMENSIONS LxWxH [ft]: 32.8 x 8.5 x 10.5
WITH OPTION LxWxH [ft]: 47.9 x 9.8 x 10.5
The track-mounted mobile impact crusher REMAX 400 offers an exceptionally high standard of operational safety. Simple maintenance, easy accessibility and many other technical details are user-friendly assets of REMAX 400.
THROUGHPUT CAPACITY [t/h]]: up to 400
INTAKE OPENING[in]: 49.6 x 31.5
FEED MATERIAL SIZE[in]: 0-31.5
WEIGHT [lbs]: 88.184
WITH OPTIONS [lbs]: 114,639
TRANSPORT DIMENSIONS LxWxH [ft]: 44.9 x 9.8 x 11.8
WITH OPTION LxWxH [ft]: 50.9 x 9.8 x 11.8
The most impressive impact crusher in this series is the REMAX 500. It can process up to 500 tons of material per hour and is extremely robust, durable and reliable thanks to its high-quality machine construction.
THROUGHPUT CAPACITY [t/h]]: up to 500
INTAKE OPENING[in]: 49.6 x 33.1
FEED MATERIAL SIZE[in]: 0-31.5
WEIGHT [lbs]: 110.230
WITH OPTIONS [lbs]: 136,685
TRANSPORT DIMENSIONS LxWxH [ft]: 52.5 x 10.5 x 12.3
WITH OPTION LxWxH [ft]: 57.4 x 10.5 12.3