Semi Autogenous Grinding Mill In Mining ( SAG Mill Video )

SAG mill in the mining constitute equipment used in the mining industry for grinding material, it uses steel balls next to large rocks to grind. SAG is an acronym for Semi Autogenous Grinding Mill and the SAG mills use minimum ball charge 6-15%. It has a large diameter and short length in the equipment SAG. 

The liner is made of wear-resistant steel and provided with lifters, which when the mill rotates can in increasing the load support. The load consists of dry ore, steel balls and water, which occupies 30% of the volume. 8% of this volume is steel balls. 

A SAG mill is most common used in the mining areas, especially in the mining of precious metals,  such as gold, copper, silver and nickel. The SAG mill is used in the line of industrial mining equipment designed to process, crushing, separating, or locate precious metals from coal. The SAG mill is one of the major mining equipment pieces and often requires machinery repair and maintenance.  

This is most often due to the large amount of heavy, residue bearing material being churned from grinding mill due to the Large amount. The SAG mill used plates along the inside of the drum, lift the material during rotation, causing them to fall onto each other to crushing. 

A semi-autogenous grinding mill or SAG mill is responsible for materials of Large chunks into Little pieces suitable for processing material. The SAG mill is usually part of the primary stage in the grinding process. Pieces of raw or reduced rock materials into smaller pieces for further processing or sorting. These machines are electrically driven , but changed and have been modified from powering systems over the years.

It may often be necessary to service a variety of industrial gold mining equipment, coal mining equipment, and other relevant major mining equipment. People who work in SAG mills must to understand involved in each phase of the machine repair process the intricate details, rehabilitation of mining equipment and great care. This information will necessity a trained eye and skillful hand, to ensure that the machine working properly.

SAG Mill & Maintenance

Some of the necessary services for the SAG mill machines comprise technical support during the construction and application processes for the mining equipment manufacturers. Other services include the production of parts, mining machinery repair and restoration of mining machinery. This type of equipment is extremely important for the production and economy, and it is necessary to take care when handling the equipment. Professionals should be very knowledgeable in this unit.

When machine has been shut down, or the process is problematic , so do production and profit slowed. Mining machinery maintenance and modifications keep production running at its best. SAG mill operations are no exceptions. In Specific, it is important to ensure that the lifting plates, rotating drums, mill rotators and other machine components their optimal operating functions maintained at all times by ensuring that preventive and routine maintenance completed on schedule and on time.

SAG mill mining machinery, and other mining equipment, are crucial for the mining industry. SAG mill has a far history in mining production and must be handled carefully and with caution to ensure safety and optimal production at any time. Gold-mining equipment and mining equipment are among the most waited mill types mining machinery, which requires maintenance and modification. 

Video Rubicon Minerals Corp: SAG Mill First Run Phoenix Gold Project 

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Video How To Test Silver

Silver is the first metal which was first smelted from ore. It comes from ancient Egyptian empire used and has been forged in household utensils, jewelry, etc. Pure silver is smooth as gold, copper usually alloyed to straighten his strength and can be used for making the production equipment and other items.

Without addition of alloying because of its softness, it would melt. Fine silver is pure Nearly 999/1000 percent, but it is too smooth to make jewelry, out of it a metal added in silver. But something called silver or sterling silver (which in it 92.5 percent pure silver and has 7.5 percent metal ) is pure silver.

Silver is a versatile chemical element. Sterling silver is 92.5 percent silver and 7.5 percent other metals, especially copper. It is harder than pure silver. Pure silver is smooth and often referred to as “fine silver.” Products can often be mistaken as silver when silver (only covered with a thin layer of fine silver). 

But how do you know you really have silver at home? Unless you are an silver holder, who knows quality is silver, and how pure the silver, you buy. You can not have the first clue how to test for silver purity at house. This article will Aid explain the purity of silver and how to confirm that not only is another gray metal.

The most obvious way to know pure silver, and the extent to which it is pure, is to check on your silver jewelry and silverware

Tips to determine purity of silver Or How to test silver

1. Test with a magnet , In the specially using a strong magnet, such as the magnet made of neodymium. Silver is paramagnetic and shows only a weak magnetic effect. If magnet very strong sticking on metal, it has a ferromagnetic core and is not silver. 

Note that there are a few other metals which a magnet will not stick and can be made to look visible as a silver. It is better to carry out the magnetic test in conjunction with another test to ensure that the core is not another metal.

2. Try the ring-test with each coin. Silver makes a really lovely bell like ringing when someone knocked on, especially if they are knocked with a different kind of metal. If you want to try this, you have to find metals silver quarter which made before 1965 in United States, it is made of silver 90% silver US. 

Were during quarters later than 1964 are made of a copper-nickel alloy. The elder quarter will give a whistle, clear ringtone, while the newer district give a thud of a sound. 

3. Perform a chemical analysis test to the point item. Use chemical analysis if no stamps indicating that the silver metal. Use gloves within silver test with chemicals, because if exposed to a corrosive acid solution, it will burn your skin

Note that this method has the potential to damaging silver element.

Buy a silver test. Silver acid tests for pure silver, but if you think your piece is silver, you will use a Little jeweler file to make a mark, revealing what might be under the plating.

Find. An inconspicuous place on the article in question and make a Little scratch on the silver piece. This is necessary in order to test the underlying metal silver it with acid. Scratch the piece a metal file. Scratch off enough so you can get to the surface of any plating layer.

If you do not want your piece scratch, or potentially leave a mark from the acid, you can use a black stone slab. These are generally made with a silver testing kit available. Rub your silver on the surface of the black stone, so that it leaves a thick and relatively Large deposit on the stone. Goal for a line that one thick one-half inch.

Apply a drop of acid to the scratched surface only. When the acid touches any portion of the piece that is not scratched, it will affect the polished look of the piece. If you want to use a black stone, a drop of acid will add to the line that you created on your stone. 

5. Analyze. The analyze  surface on part scratched with the acid. You have to analyze the color, the acid appears as decreases in the piece.
Be sure to follow the instructions and color of your specific silver test. In common, the color scale is as follows:

Bright Red: Fine Silver
Darker Red: 925 Silver
Brown : 800 Silver
Green : 500 Silver
Yellow: Lead or Tin
Dark brown: Brass
Blue: Nickel

This video constitute How to test silver

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The South African Gold Market

The economy of South Africa depends largely on its mining industry. It  is mines  precious metals like  gold , copper, platinum, and diamonds. The South African gold market is 120 years old. It has seen a continuous cycle of ebbs, and falls in its economic history. Like many other countries, it depended upon the London bullion market to sell its gold to the global gold market. Individual  gold   mining  companies and brokers marketed  gold  through London.

Later, The Reserve bank of South Africa took over the control of the gold market of South Africa in the early twentieth century, after the First World War ended, and used The Bank of England as its selling agent to channel gold to the London bullion market.

Later in 1968, during the Vietnam conflict, the London gold market was closed for two weeks. When it reopened, the future of the global gold market had changed forever. It had lost a number of its potential clients. The three main Swiss banks formed a Zurich gold pool, and approached The South African Reserve Bank to channel its gold. Even today, Switzerland is known to handle most of the gold produced in South Africa in the global gold market.

South Africa has the second largest gold reserves in the world. In the beginning, it contributed as much as half the total gold produced in the world. However, over a period, its  gold  production slowed down, despite the low-cost of  gold   mining  in South Africa. With the  gold  rush in California, and later in Australia,  gold   mining  companies focussed their attention to the newly discovered mines.

Gold   mining  is anyway a difficult job, and in a country like South Africa, where the geological factors make it unbearable to work, the instability of the country further hampers the growth of  gold   mining  industry. The geothermal temperature is more than 50 degree Celsius.

It needs tons and tons of water to be pumped in to cool the inner temperature. Moreover, it requires massive amounts of dynamite, and Cyanide to blast the  mines , and extract  gold  from there. The refining process of course needs uninterrupted power supply.

So altogether, the cost of  mining  and  processing  raw  gold  is extravagant for the government. With its limited resources, and insufficient power supply, coupled with the civil wars, and political instability, it has failed to deliver a prospective gold market. Rand, the South African currency is constantly losing its value against other currencies. The  gold  market has not yet shown signs of recovery, but the government is initiating projects like thermal power stations to generate more electricity for the  gold   mines  to increase their production by 2010.

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Gold Refining

Gold refining is the final stage of the gold production and it consists of removing the impurities that remain in the precious metal after the smelting process. The companies that are specialized in refining are used to receiving both gold scrap and bars which they liquefy. Afterwards, the workers add borax and soda ash to the metal. With their help, the pure gold is separated from other precious metals and less precious metals.

When the procedure is over, a sample of the glittering metal is taken to a laboratory in order to determine if it is pure. If the gold is 99.9% pure then the workers can pour it into bars. The next step is determined to what the gold is intended.

When gold is combined with another metal they together form an alloy. You can tell alloys have been used with the precious metal by looking at its color: white- gold and nickel, silver, palladium; red/pink – gold and cooper; blue – gold an iron.

The glittering metal is measured in karats. This actually refers to how much gold is presented in an object versus another metal. If the karat is big, than the amount of precious metal is high. The 24 karat is 100% gold, the 12 karat has half as much.

People from different cultures prefer different types of karats. People from India like wearing 22 karat jewelry, while Europeans wear 18 karats and Americans are fond of 14 karat. This latter type of precious metal combines the glittering content with the affordability creating the perfect balance.

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Gold Mining In Balkan Region ( Gold Mining In Albania, Macedonia, Kosovo )

Antique gold mining in the Balkan region is well documented begins in the middle ages, but started the modern mining, especially in the last 50 years. Most of this mining was carried out in the region, which covers the three countries; Albania, Macedonia and Kosovo. Anders mined as gold at the other in the region include metals, zinc, copper and lead. 

The civil war in the former Yugoslavia,  in 1991st  in the region gold mining which heavily affected. But with the finish of the war in the spring of 2000 and gaining independence both Macedonia and Kosovo from Yugoslavia and Serbia respectively the mining sector in these countries has begun to grow again.

A number of foreign investors have been awarded mining concessions for gold and this is expected to increase the country to promote gold production. 

Gold Mining In Albania

Unlike the other major gold mined in Albania Minerals include petroleum, coal and natural gas from those found most in the southwestern regions of the country. The country is also contain, copper, cobalt, nickel, dolomite, asbestos, silver, bauxite and kaolin, and other things. 

There has been in the gold mining industry in the recent past, increased investment, and this is probably the country to increase the production of gold. Some of the major players in the gold sector of the country include the Arian resources Perlat copper-gold-silver-cobalt mine is located in Puke district Albania possesses. This mine is part of a 290 hectare exploration license, which runs for 25 years. The mine produces copper, gold, silver and cobalt. 

Another important player in the gold mining sector in the country is the Tirex Resources, owns the mineral rights to the Mirdita district. The company initially received an exploration license for copper and zinc, but shown exploration activities have the presence of high grade gold and silver in the region. The company now

Gold Mining In Macedonia

Macedonia is also well equipped with mineral resources containing gold, lead, copper, silver and cadmium among others. Gold mining in Macedonia dates back to the time of Alexander the Great, where gold was mined used to finance and the running of the Roman Empire. Gold mining has continued to the present day, and occupies an important place in the country’s economy. After years of repressed production, the country has taken on a program in its mining sector to rekindle.  

Today there are several gold projects in the country. These include the Ilovica gold-copper project, which is the first of its greenfield development in the country. The project is owned by Euromax Resources and covers Approximately 500 hectares in a 1,500 ha concession area. Construction of the mine in 2016 with mining declared expected in 2018 to Start 

Another gold mine in the country is the Buchim copper mine, the open pit mine one that gold, silver and copper. The mine was founded in 1979 and is operated by the Solway Industries owned and. The ore is mined from Approximately 0.3 g / t gold. Unlike the two projects mentioned above there are several other gold mining projects still in the research. These include two prospecting concessions and two exploration licenses owned by Reservoir Minerals.  

Gold Mining in Kosovo 

Kosovo is another mineral Wealthy country in the Balkans. Gold in Kosovo is often accompany other minerals such as zinc, copper and lead found, among other things, although some clear alluvial gold reserves along rivers found. For many years, gold in Kosovo mine was mined mainly in Artana that the gold mine with the highest gold content through out Yugoslavia was operated 1939-1989 time. Before its closure, the mine had produced approximately 11.9 tons of gold.

Today is the Large gold mine in Kosovo is the Trepza Mine in Malisevo in wider circle of Prizren. The mine is estimated at a 1.18g / t gold containing a gold reserve of Approximately 0 million tons. This corresponds to Approximately 142 tonnes of gold.  

There are also several projects under exploration. These include the Slivovo exploration. A joint venture between the government and the Avrupa resource that is a subsidiary of Bymecut International Ltd of Australia The exploration was focused on the Peshter gussan block that has shown signs of gold deposits. Avrupa also holds a second exploration license for the Meovit area next to the Ancient Artana Goldmine

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