Yatela Gold Mine, Mali

Yatela is an open-pit gold mine located 50km southwest of the city of Kayes in Mali. It covers an area of 195km2 and is 80% owned by the Sadiola Exploration Company (SADEX), a joint venture of AngloGold Ashanti and IAMGOLD. The remaining 20% stake in the mine is owned by the Mali Government.

"Yatela is an open-pit gold mine located 50km southwest of the city of Kayes in Mali. It covers an area of 195km2."

Operations at the Yatela gold mine officially commenced in September 2001 with an initial mine life of ten years. The mine was constructed a month ahead of schedule and below budget at $73 million.

It was designed to produce 1.4 million ounces (oz) of gold in the first six years at an average grade of 3.6 grams per ton (g/t).

The mine was operated towards the western end of the pit and was nearing closure in 2009. It was originally scheduled to close down in 2010. An 18 month exploration programme that began in October 2010 however increased the resource base and mine life up to early 2012.

The exploration programme was approved in May 2009 at an investment of $14.9 million. Drilling performed adjacent to the main Yatela pit and in the northeast of the Alamoutala satellite pit projected encouraging results, due to which an additional $2.2 million was approved to proceed with the extension.

Background to operations at the Yatela gold mine

Small scale mining was carried out for more than 300 years in the Kayes region of Mali.

The Yatela deposit was identified by SADEX during the exploration of Sadiola deposit in 1987. Yatela concession was then owned by Eltin of Australia who had also been exploring the region. In 1997, SADEX signed an agreement to buy the concession from Eltin and the transaction was materialised in 1998.

The feasibility study was conducted by AngloGold in 1999 following the receipt of development permit in 2000 from the Mali Government. AngloGold was later merged with Ashanti to form AngloGold Ashanti.

Geology and reserves of the mine area

The Yatela deposit is located in the north of the Malian portion of the Keniéba-Kedougou window with Kofi formation sediments. These sediments comprise of carbon-rich and impure lime stones with minor tuffs and acid volcanics.

The total reserves at the time of commencement of production were 1.34 million tons (mt) grading at 3.7g/t and the total measured and indicated resources were 28mt at 2.5g/t.

As of December 2010, the proven and probable reserves totalled 1.51mt graded at 1.6g/t of gold.

The attributable production in 2011 is expected to be in the range of 31,000oz to 32,000oz.

Mineralisation of the Kayes region of Mali

Mineralisation occurs in the troughs developed over the carbonates. The troughs are 220m deep and comprise of unconsolidated ferruginous sand and clay.

The ore zone lies on top of the thick layer of angular blocks belonging to Seroukoto sandstone and shale which in turn is covered by a fine sand unit consisting of pisolithic gravel layers and laterite rubble.

Mining and processing at the Yatela open-pit gold mine

Ore from the mine is extracted from the main pit as well as the satellite pit at Alamouta. The main pit is 1,300m in length, 600m wide and 220m deep.

"Operations at the Yatela gold mine officially commenced in September 2001."

The mined ore is treated at a heap-leach pad and carbon loading that was commissioned in 2001. The extracted ore is crushed in the agglomeration drum and the output is transported by an overland conveyor, mobile conveyor and radial stackers to build a three-lift heap leach pad.

Cement added during agglomeration ensures structural stability and adequate filtering up to the lower lifts. A cyanide solution is pumped through the pipes to feed the pads for filtering purposes. The solution is pumped through carbon-filled columns to strip gold.

The carbon is eluted and the gold is trucked to the smelter at nearby Sadiola processing plant.

Coal processing equipments in South Africa

South Africa is not only rich in metal mining, but also rich in the nonmetal mining resources. For example, the coal reserve is the seventh of the world. Now South Africa is one the chief coal production countries, it is the fourth largest exporting country of coal and it is also the leader production country of liquid fuel made of coal. So coal crusher for sale in South Africa has big market. With more investors focus on the South Africa coal industry, Double has won more and more gaze from these investors.

Coal Processing Equipments

South Africa coal processing equipments offered by SBM are mainly jaw crusher, impact crusher, hammer crusher, ball mill and LM series grinding mills and feeder, screens and belt conveyors, etc.

Many producers produce coal aggregates, the coal crushing plants are able to satisfy their requirements. Many producers produce coal powders or process coal ash; in this case, the coal grinding machineries are very important.

Coal crusher plants

The commonly process of coal crusher plants in South Africa are similar with each other. Jaw crushers crush big coal lumps to small ones when they dig out from well or from deposits. It is really a easy work for Double jaw crusher. Actually, Double jaw crushers can be used to crush numerous mining ores and different stones, such as granite, marble, basalt, gravels, limestone, gypsum, clay, manganese ore, chrome ore, iron ore, gold ore, copper ore and zinc ore and so on.

As to the impact crushers, if the raw coal size is not very big, they can crush the lumps to small particles directly; if the raw coal size is big, impact crushers are used behind the jaw crushers. Though the application of impact crushers is wide, but impact crushers should used in crushing soft materials. If the coal deposit is small and producers just want to build one small coal production line in South Africa, Double hammer crushers are really good choices. Also, the output size of hammer crusher is quite small and adjustable, no other better machines are better than them in this function.

Coal grinding process

In the coal grinding process, ball mill and LM series grinding mills are widely used. It is well-known that many factors must be cared when producers grind coal powders, for example the inflammability. Double LM series grinding mill and ball mill well solve these problems. And they are really high performance and price ratio products.

Till now, Double has many coal crushers and coal grinding mills used in South Africa. Though the scales are not very large, they do make many more South Africa people know Double. And we do believe our service and our products will help us enlarge our market in South Africa in the near future.

If you are one investor and plan to invest in South Africa coal industry, just be free to contact us; if you any problems about the coal crushing plants just be free to contact us. You can chat with our engineer on-line, the answer will be shown you immediately; you could also leave your email address with us, we will get in touch with you within 24 hours.

Sand Making Machinery for Sale in South Africa

In the middle of 2011, South Africa government plan to invest 95.5 billion USD dollars to infrastructure construction. For example, the rail way construction, the road construction, etc. Obviously, these construction projects will consume great many stone aggregates and sands. Great many business chances are created with making this policy. At this time, sand making machine in South Africawill be widely used.

Double Sand Making Machinery for Sale in South Africa

Sand making machines are Double key equipments all the time. In Australia, in Canada, in Spanish and other countries, Double sand making plants can be fond. Till now, we have a few sand making machines shipped to South Africa, but we do believe in the future, great many sand making plants in South Africa with Double products will be built with South Africa infrastructure construction.
The popular Double sand making machines are our VSI series and B series deep rotor vertical shaft impact crusher.

Double VSI sand making machine is used as the tertiary crusher in sand making crushing plant. The crushed sand (0~5mm) is very popular in concrete mixing, building and road construction industry. Also, VSI is widely used in metallic and nonmetallic ore, building material, manufactured sand crushing industries and in aggregates reshaping processing.

Advanced double pump oil lubrication system is used in VSI series sand making machine. This system ensures the machine is able to steadily work even one of the pump breaks down. As a result, the maintenance frequency and the downtime reduce obviously. Meanwhile, this type sand making machine is easy for maintenance because of hydraulic lift cap system.
The latest B series deep rotor vertical shaft impact crusher has many more advantages compared with the traditional VSI sand making machine:
1.Higher capacity: It adopts deep rotor, it is about 50% higher than normal rotor, which means more materials can be fed to the rotor and higher rotor throughput.
2.Longer service life: the deep rotor ensure the material go through the rotor smoothly, as a result, attrition is decreased and the service life of wear parts increase about 30%-50%.
3.Lower production cost: Optimized designs are used in the spare parts, such as segment design of rotor tip, application of diamond impact block and segment design of chamber lining plate.

South Africa sand making plants

One machine can not finish the work. One complete sand making plant consist of various crushers, such as jaw crusher, cone crusher, impact crushers, vibrating screen, etc. Double would like to help you find the best solution and offer the matched equipments matched with our design. In this way, the whole plants can work very well and you will get much more profit from South Africa sand making plants.
If you plan to invest in sand making plants in South Africa, or if you have any problems about the crushing industry, just be free to contact us. You can leave your email, we will answer you within 24 hours; you can also chat with our engineer on-line, this way, you can get many details immediately.

FLSmidth Raptor® Line: American-Engineered Solutions

FLSmidth Pekin LLC (formerly known as FLSmidth Excel LLC) introduces two new models to its extensive Raptor® Cone Crusher line for 2010: the XL500 and XL2000 cone crushers. The XL500 cone is a 500 hp machine, falling between the XL400 and XL600 in size and capacity. The XL2000 cone, a 2000 hp machine, doubles the capacity of FLSmidth’s previous largest crusher, the XL1100 cone, and offers new industry-leading features to increase overall crushing throughput.

XL300 Cone

Available in the XL300, XL400, XL500, XL600, XL900, XL1100 and XL2000 models, the Raptor® High-Performance Cone Crusher is the result of extensive research conducted with the most important segment of FLSmidth's design team – the operators in the field. The company gathered valuable input from mining and aggregate operations of all sizes, and integrated the best ideas into the Raptor cone line.

From its extra-heavy-duty, high-grade steel mainframe to its leading-edge automated control package to the hydraulic tramp release cylinder and clearing system, the Raptor cone line is designed to keep operators crushing efficiently, day-in and day-out. Utilizing state-of-the-art engineering techniques, along with advanced CNC machining technology and tight quality control, FLSmidth is able to produce premium component parts that are manufactured to exacting levels of precision and accuracy. The Raptor cone delivers high-performance crushing in a rugged, dependable, automated machine.

XL300 Cone – The design profile of this machine offers maximum productivity and size reduction versatility – not only for stationary applications, but also for wheel-mounted portable and track-mounted mobile crushing plants. This compact unit has a physical height and mass that allow for many options in the design of multi-functional, street-legal portable plants. All XL300 cone crushers feature one-piece cast steel mainframe, with a forged steel main shaft.

XL400 Cone

XL600 Cone

XL400 Cone – An ideal solution as a secondary crusher following a jaw crusher, the XL400 cone produces more usable and salable aggregate per ton processed. A versatile and highly portable machine, this model also accepts primary-crushed material with greater flexibility, thanks to its large feed opening, high-pivot-point crushing action and wide crushing stroke. With a large head diameter of 52 inches (1.3 m), the XL400 can accept feed that is up to 25 percent larger than can be accepted by a crusher with less throw or head diameter.

XL500 Cone – One of FLSmidth’s newest models, this versatile 500 hp machine provides excellent secondary crushing capabilities. Like the XL400 cone, the XL500 cone handles a large feed and has a wide crushing stroke, producing more material of desired cubicity and gradation than its competitors.

XL600 Cone – A cost-effective solution for medium- to high-tonnage aggregate and mining operations, the XL600 cone has a maximum throughput capacity of almost 1,000 TPH (907 tonnes) in secondary applications. It can handle feed sizes up to 14 inches (360 mm) and has an active feed opening that creates better end product shape for high production of salable material. The countershaft is integrated into the mainframe arm, creating a stronger frame.

XL900 Cone – Offering both strength and performance, this unit improves throughput and feed size over comparable models in the 700 to 900 hp range. Production rates for the XL900 cone reach up to 1,400 TPH (1,270 tonnes). With its 70-inch (1.8 m) head diameter and integral countershaft built into the four-arm mainframe, the XL900 cone is not only large, but is one of the most robust crushers in its size range. Like all Raptor cone models, the high pivot point and large crushing stroke offer better crushing action throughout the crushing chamber.

XL2000 Cone

Portable Plants

XL1100 Cone – Previously the largest cone crusher on the market, the XL1100 cone breaks productivity barriers, while its integrated countershaft in the three-arm mainframe delivers unmatched durability and provides more open area. Features include a fail-safe hydraulic system, advanced eccentric, spiral-bevel gearing and alloy castings. The XL1100 cone can draw up to 1,200 hp and is designed to set production records.

XL2000 Cone – The XL2000 cone doubles the capacity of the XL1100 cone. Like its smaller counterparts, the XL2000 cone contains all of the design and automation features that have set FLSmidth’s machines apart, while offering several new features, including double-acting tramp release and clearing cylinders and easy access to critical load-carrying bearings. This direct drive 2000 hp variable speed machine has a significant eccentric throw and high-pivot point crushing action.

Portable Plants – Working with preferred chassis and screen manufacturers, FLSmidth’s engineers can custom-design a portable wheel-mounted or mobile track-mounted plant, based on customers’ unique applications. Wheel-mounted plant options include rear discharge and rear feed-side discharge for both the XL300 and XL400 cone. When combined with a horizontal 6-ft x 20-ft two- or three-deck screen, the XL300 cone can be configured into a closed-circuit crushing and screening plant. The XL300 and XL400 crushers can both be configured with two- or three-deck horizontal screens that are 6-ft, 7-ft or 8-ft x 20-ft, to provide open-circuit crushing and screening plants.

To learn more about the RAPTOR® LINE go to the REQUEST MORE INFO button above or click on the DIRECT CONTACT button to reach FLSmidth directly.

IROCK Tough Crushing Solutions

IROCK Crushers RDS-20 Portable Closed Circuit Impact Crusher

• Designed for processing quarry rock,demolition debris, and recyclable materials up to 500 tons per hour
• IROCK’s high performance 4 Bar Impactor with Three Stage Crushing provides up to 25% more productivity than competitive 3 Bar Machines, lowering your final cost/ton. Feed Opening 56” x 32”
• Powered by Caterpillar ® C-13 Engine and PT Tech Microprocessor Controlled Hydraulic Clutch HPTO12. Durable high performance components reduce your cost of ownership and maintenance

• Standard Crusher Discharge “ROCK BOX” with impact bed eliminates the need to replace costly liner plates resulting in dramatic savings in labor and wear parts, making for a more efficient and productive plant
• On Board Power for full plant operations and three extra outlets for auxiliary conveyers gives you maximum jobsite flexibility
• Hydraset Hopper™ makes for easy two piece move with a teardown requiring only one person and completed in as little as 30 minutes

IROCK Crushers RDS-15 Portable Closed Circuit Impact Crusher Plant 

• Designed for processing quarry rock, demolition debris, and recyclable material up to 350 tons per hour
• IROCK’s high performance 4 Bar Impactor with Three Stage Crushing provides up to 25% more productivity than competitive 3 Bar Machines, lowering your final cost/ton. Feed Opening 40” x 32”
• Powered by Caterpillar® C-9 Engine and PT Tech Microprocessor Controlled Hydraulic Clutch HPTO12. Durable high performance components reduce your cost of ownership and maintenance

• Standard Crusher Discharge “ROCK BOX” with impact beds eliminates the need to replace costly liner plates resulting in dramatic savings in labor and wear parts, making for a more efficient and productive plant.
• On Board Power for full plant operations and three extra outlets for auxiliary conveyers gives you maximum jobsite flexibility.

Designed and Built by Crushing Contractors for the Crushing Contractor

• RELIABLE
  Low Maintenance Costs & 24/7 Tech Support
• PROVEN
  20 Years of Industry Experience

• READILY TRANSPORTABLE
  Hydraset Hopper™ Improves Portability
• BEST INDUSTRY QUALITY
  Superior Sub Components & 5 yr Rotor Warranty

Steel structure mining processing plants

Tanzania is rich is many kinds of mining resources, such as the gold resources, coal resources, iron ore resources and limestone and so on. These rich mineral resources attract a number of investors invest in Tanzania and build many Tanzania mining ore crushing plants every year.

Double has helped many customers build plenty of mining ore processing plants in Tanzania, for example, we help customers build mobile crushing plants, fix mining ore crushing plants on cement foundation and crushing plants on steel structure, which greatly help customers save time to build the foundation.

The advantages of Steel structure machine

Steel structure foundation belongs to movable crushing plants, but it is not as flexible as the mobile crushing plants. Compared with the cement foundation, it has many advantages.

With the development of modern mining industry, many customers would like to save the cost of investment and the time to build foundation. To satisfy these customers’ requirements, Double R&D team spend a lot of time to design the steel structure that fit for Double mining ore processing equipments, such as Double mining ore jaw crusher, Double mining ore cone crusher, Double mining ore impact crusher and Double vibrating feeders, vibrating screens, etc.

By using these steel structure mining processing plants, producers just need to build simple foundation, it do greatly save the time to transport materials to build cement foundations. Supposing building cement foundation will spend three months, using the steel structure mining ore processing plants will save at least one month. Meanwhile, good cement foundations do cost a lot of money, greatly increase the invest cost. So by using steel structure, investors can get return earlier.

Steel structure mining processing plants

On the other hand, many mining working sites environments are very bad; producers have to spend a lot of time to making working sites, they use excavators dig the mountain to make suitable platform. It does bring a lot of troubles to investors. But if producers adopt Double steel structure, these problems are easy to be solved.

Meanwhile, the steel structure can be disassembled. Once one mining deposits work out, producers can disassemble the plants and transport to another deposits easily. And they can run the new mining ore crushing plants quickly.

Comparing with Double mobile crusher plant, the flexible of steel structures have many limits. But it is really good choice for many customers. And it is cheaper than the mobile crushing plants.

Tanzania mining ore crushing industry

If you plan to invest in Tanzania mining ore crushing industry, if you are interested in the steel structure crushing plants, just be free to contact us.

Chat with our engineers on-line, you can get answers immediately; leave your email address or your phone number, we will get in touch with you within 24 hours. We would like to help you solve your problems with you together.