Monday, December 26, 2011

Afton-Ajax Copper-Gold Project, Canada

Located near Kamloops in British Columbia, Canada, the Afton-Ajax copper-gold project is being developed by New Gold and Abacus Mining and Exploration. The development area, Afton-Ajax Cu-Au District, is operated by Abacus. The mine contains approximately 80% surface resources and 20% underground resources. The open-pit resources are owned by Abacus, which also owns 60% of the underground resources.

Teck Cominco was the operator of Afton-Ajax until it sold the rights to Abacus in November 2005. As part of the deal, Abacus purchased a mill and tailings pond at Afton. The related permits, access rights for the tailings, water and some surface rights were also acquired.

"The mine contains approximately 80% surface resources and 20% underground resources."

In order to accelerate the development of the mine, Abacus entered into an investment agreement with KGHM Miedz in May 2010 to form a joint venture (JV) that would explore Afton-Ajax.

Under the agreement, KGHM will own 51% of the JV by paying $37m in cash to Abacus. The terms of the agreement allow KGHM to acquire a further 29% in the JV after completing a bankable feasibility study.

TD Securities was KGHM's financial advisor for the transaction, while CIBC World Markets was the financial advisor to Abacus.

Geology and reserves

Afton-Ajax contains porphyry deposits of alkalic copper-gold. Abacus and New Gold completed Phase I drilling at the site by 2008. Analysis of the drilled samples was done by Eco Tech Laboratory.

Abacus carried out a series of diamond drilling programmes at the site during 2005-08. It completed more than 520,000ft of drilling by 2008. AMEC Americas was contracted in June 2008 to provide engineering services for the project. It also prepared a mineral resource model to estimate the reserves at the deposit.

"Approximately 80% of the estimated resources are in the area owned by Abacus."

As of June 2009, the measured and indicated resources at the mine were expected to be 442mt grading 0.30% Cu and 0.19g/t Au. The inferred resources were approximately 80.6mt graded at 0.22% Cu and 0.16g/t Au. These estimates were based on 0.13% copper equivalent cut-off.

Approximately 80% of the estimated resources are in the area owned by Abacus. The remaining 20% are in the area shared between Abacus and New Gold.

Production

The technical feasibility in the preliminary economic assessment report was established assuming annual copper production of approximately 50,000t and gold production of 100,000oz.

Open-pit mining

The open-pit mine plan assumes an average strip ratio of 1.7:1. The open-pit will contain 12m benches. The pit slopes will be adjusted according to the geology. Electric drills will be used to drill the ore and waste. They will be able to drill blastholes of 311mm in diameter. Haul trucks will transport the blasted material from the site to a gyratory primary crusher. Electric rope shovels and front-end loaders will be used to load the material into the haul trucks.

New Gold owns a portion of land and a water pipeline in the Afton area, which it acquired from Teck Cominco in 2007. The land lies between the mill and tailings acquired by Abacus. Teck Cominco was using the pipeline to supply water to the open-pit mine at Afton. In March 2008, New Gold agreed to share the pipeline with Abacus to supply water to Afton-Ajax.

Ore processing

"Abacus expects that the mining operation will have the potential to process 60,000t of ore a day."

The ore crushed at the gyratory crusher will be delivered to a copper concentrator that will include a 40ftx25ft SAG mill and two 24ftx42ft ball mills. The concentrator will recover copper and gold concentrates from the feedstock using a conventional flotation circuit. The recovery is followed by filtration before the concentrate is shipped out.

Abacus expects that the mining operation will have the potential to process 60,000t of ore a day.

Costs

Wardrop Engineering completed the technical feasibility of the mine development in July 2009 and estimated that the project would cost $535m. The mine life was assumed to be 23 years starting from 2013. The feasibility was based on the average mining costs of $1.17 per pound of Cu and $700 per ounce of Au.

Environment

The environmental assessment made by Wardrop concluded that the project would not cause any significant harm to the flora and fauna in the surroundings of the project site.

Tuesday, December 13, 2011

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-in-South-Africa[1]

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.

Friday, December 9, 2011

Replacement Bearings for Crushing Equipment from Messinger


Thrust Roller Bearings for Crushers.

If Messinger Bearings doesn't have the rolling element bearing you need in stock, they probably have it in production. In either case, they can get it to you quickly so you can get back in operation fast. Their bearings are compatible with many crusher brands and in many cases have been supplied as OEM parts.

As part of Kingsbury, Inc., the leader in fluid film bearing technology they will have the bearings and the resources you need.

They Can Repair Your Bearings For Big Savings

Why replace a damaged bearing when you can get it repaired for far less money and have it perform like new? Not only can the Messinger Bearings Repair Program provide savings of up to 65% over the cost of a new bearing, but you'll have your bearing back on-line in less time than it takes to have a new one installed. In addition to the savings, their repair program provides high quality craftsmanship and the shortest possible delivery time.


Messinger can expertly repair bearings up to 25 feet in diameter.

Their repair capabilities include all types of ball and roller bearings, ranging in size from an internal diameter of 2" to an outer diameter of 25 feet. They not only service their bearings but those of other manufacturers as well. So no matter what brand your bearing is, take advantage of Messinger Bearings' 95+ years of bearing expertise the next time it's damaged and save time and money.

To learn more about replacement bearings for crushing equipment go to the REQUEST MORE INFO button above or click on the DIRECT CONTACT button to reach Messinger directly.

Monday, December 5, 2011

Iron ore crushing machines manufacturer

The mineral resources of Mauritania do have great potential, particularly the iron ore resources. The proven iron ore reserves is the top two in Africa, it is also important in the world iron ore resources.

Iron-ore-crushing-machines-manufacturer-300x199

Iron ore crushing machines for sale in Mauritania

Double has rich experience in designing Africa mining ore crushing plants and we have many customers in different countries in Africa. So do in Mauritania.

For the grade of Mauritania iron ore is quite high, many investors would like build iron ore crushing plants instead of building complete iron ore processing plants that contain iron ore crushing machineries, iron ore grinding machines and iron ore beneficiation plants. So the costs of the investments are usually quite small.

Iron ore jaw crushers 

Jaw crushers can be fond in almost every iron ore crusher plant. Double jaw crushers absorb the latest crushing technique and adopt the steadiest main frame design. Also, we strengthen the wear parts and use ferrochromium to prolong the wear parts service life. In this way, it greatly reduces the maintenance time and ensures the investors get return as soon as possible. Simple structure and good performance make it the best choice for iron ore crushing process. In the whole iron ore crushing plants, Double jaw crushers are used in primary crushing process and they are competent to crush big raw material to small lumps, which are able to meet the max. feeding size of subsequent iron ore crusher, such as cone crusher.

Iron ore cone crushers 

Iron ore cone crushers are widely used in iron ore medium-fine crushing process. Double has two types cone crusher for customers’ references; they are our HP series high performance hydraulic cone crusher and S series cone crusher. Compared with S series cone crusher, HP series cone crusher has higher crushing efficiency under the same situation. But S series has better adaptability in very bad environments. Both of the two types cone crusher adopt optimized crushing cavity. And the mantle and bowl liner and some other key wear parts are made by high intensity wearable material. With the help of cone crushers, the iron ore can be crushed to very small size, such as 40~20mm, 20~10mm, 10~5mm, 5~0mm (or 1”~3/4”, 3/4”~2/4”, 2/4”~1/4”, 1/4”~0). The final products size range can be controlled by Double vibrating screens.

Iron ore aggregates plant

Iron ore aggregates discharged from the iron ore crushers are in different sizes. Some maybe able to meet requirements, some are still bigger than requirements. So they must be classified. Double vibrating screens are widely used in separate the qualified particles from mixtures. And the wire meshes are easy to be changed. So producers can adjust the final products size easily according to their requirements.

When the iron ore particles are classified by the vibrating screens, belt conveyors will transport them to final store piles or loading them to trucks for sale directly.

Mauritania iron ore crushing plants do have great invest potential, so if you intend to invest in Mauritania iron ore crushing machines, 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.

Mauritania mining processing plants

Mauritania is located in the western of Sahara. Though it belongs to underdeveloped country and is not known by many people. But the mineral resources of Mauritania do have great potential, particularly the iron ore resources. The proven iron ore reserves is the top two in Africa, it is also important in the world iron ore resources. Other primary minerals of Mauritania are gold, diamond, oil and gas, gypsum, phosphate, salt, kaolin, etc. So in many areas, many kinds of Mauritania mining ore crushing plants can be fond in the mining deposits.

Mauritania-mining-processing-plants-300x225

Mauritania mining investment opportunity

Nowadays, the potential mineral resources win a lot of gaze of international investors. Foreign investors from different countries begin to invest in Mauritania mining industries. They purchase mining ore crushers and build mining processing plants in Mauritania. As a result, Mauritania mining investment is growing rapidly these years. In 2004, it became the Africa’s third-largest mining investor after South Africa and Ghana’s.

Mauritania iron ore resources

Mauritania iron ore resources are mainly fond in the northwest zones, different scale iron ore crushing plants are built near Zouerat areas. In 2005, it estimated that the iron ore reserves are about 700 million tons, and the Ferrum is about 400 million tons. Average grade is about 57%.
The iron ore production is about 10 million tons per year, most of them are for export. At present, many important iron ore companies plan to enlarge the scale.

Gold and Copper resources in Mauritania

Mauritania has earlier copper, gold mining history. The most important copper and gold deposits are located in Mauritania northern orogenic belt and northeast of Nouakchott.. Many famous foreign investor has invested here and many copper ore crushing plants and gold processing plants were built here for many years.

Gypsum Resources in Mauritania

The chiefly gypsum products are from the mining mountain in the north of Nouakchott. Every year, 100 thousand tons gypsum are produced here. But many of the scale of the gypsum crushing plants are quite small. Supposing large scale gypsum production line in Mauritania can be built, the capacity will greatly increased.

Mining ore crushers for sale in Mauritania

Being one of the world-lead mining ore processing equipments manufacturer in China, Double helps customers design many mining ore crushing plants used in Mauritania, such as medium capacity iron ore production line, small scale gold ore beneficiation plants and kaolin crushing plants and gypsum crushing and grinding plants. The popular equipments used in these plants are iron ore jaw crusher, iron ore cone crusher, gold ore hammer crusher and gypsum impact crushers and matched equipments like vibrating screens, vibrating feeder and belt conveyors, etc. We would like to cooperate with investors from different countries. So if you plan to invest in Mauritania mining resources, 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.

Friday, December 2, 2011

Crusher plant production and maintenance

The production line of crusher plant mainly consists of Vibrating Feeder, Jaw Crusher, Impact Crusher, Vibrating Screen, Belt Conveyor, Electric Control Box, etc. Double equipment design different production lines ranging 50 t/h to 500 t/h by combining different models of equipments also matching Cone Crusher, Bag Dust Catcher, etc. to satisfy different customers’ technological requirements.

Crusher-plant-production[1]

Crusher plant maintenance

Convenient maintenance is so important in the quarrying crusher plant industry. Maintenance can be defined as working on something to keep it in a functioning and safe state and preserving it from failure or decline. Maintenance activities at quarries range from the maintenance of machines, equipment and vehicles to the keeping of roadways on site in good order, attending to such matters as providing edge protection and securing excavations.

It’s important to keep structural costs down, to design for ease of maintenance and operation, and to combine best practices with advances in fabrication and erection.

Best installation for crusher plant

In mining operations, the layout of crushing plants and ancillary equipment and structures is a crucial factor in meeting production requirements while keeping capital and operational costs to a minimum.Since the crushing plant’s structure and enclosure can represent the largest single cost element in a primary crushing plant, it is imperative to optimize these structural and construction costs to suit the life of the operation.

The fundamental goal for the design of a crushing plant is an installation that meets the required production requirements, operates at competitive cost, complies with today’s tough environmental regulations, and can be built at a reasonable price despite the rising costs of equipment, energy and construction labor.

Thursday, December 1, 2011

Basalt dressing plant

Basalt can be a dark-colored, fine-grained, igneous rock composed generally of plagioclase and pyroxene mineral deposits. It most commonly forms as a possible extrusive rock, such as a lava circulation, but can also kind in small intrusive systems, such as an igneous dike or possibly a thin sill. It has a composition comparable to gabbro.

Basalt-dressing-plant[1]

Basalt is most frequently crushed by basalt killer and grinding machines for use just as one aggregate in construction jobs. Crushed basalt is used by road base, concrete aggregate, asphalt pavement aggregate, railroad ballast, filter stone in drain fields and will other purposes. Basalt is also cut into dimension stone. Thin slabs of basalt usually are cut and sometimes rubbed for use as ground tiles, building veneer, monuments and other gemstone objects.

Basalt Mining Machines

Basalt crusher adopt jaw crusher, impact crusher and mobile crusher in the basalt crushing plant and adopt ball mill, MTW ginding mill, MTW grinding mill, hammer mill and LM series basalt milling machine in basalt grinding plant. In basalt dressing plant contain spiral classifier, concentrator table, flotation machines, filter,concentrator and dryer.
To one complete basalt beneficiation production line,it may contain many of the machines.The final equipments configuration depends the practical demands and the design.

Basalt Beneficiation Flow

When blast or digged out from the underground or from the mountain, the excavator carry the basalt to the basalt crushing site and feed dump the raw basalt mining to the hopper. Then the vibrating feeder under the hopper feed the raw material to the basalt crushers. Usually the crushed aggregates size is 0~10mm when the basalt discharged from the basalt crushers and classified by the vibrating screens.

The the basalt grinding machines (such as the ball mill) will grind the basalt aggregates to sand size or smaller particles. After classified and cleaned by the spiral classifiers, the particles will be fed to the basalt flotation machines or concentrator table. Then the concentrator, filter and dryer will thicken and .dry the particle and high purity available mineral is produced. In the beneficiation process, dense separation is usually adopt one time concentrating process and the producer will sell it after that for low production cost.

Find ideal basalt crushing and milling plant

As one of the superior professional basalt crushing in addition to grinding equipments manufacturer, Double offer customers the very best solution of develop one suitable basalt crushing and milling plant, supply the matched basalt crushers and also basalt grinding mills and linked equipments. Also, we will help the purchaser install the basalt crushing plant and grinding place and good after-sale service.