Bachelor Lake Gold Mine, Canada

Bachelor Lake Gold Mine is located 225km north-east of Val-d'Or in Quebec, Canada. It consists of 177 claims and two mining concessions spread across 4,837.4ha of land. The mine has two blocks: the eastern block (Bachelor Lake claims) and the western block (Hewfran claims).

The eastern block is spread across 1,867.3ha and consists of 51 claims and two mining concessions. The western block has 38 claims covering 683.5ha, where the Bachelor Lake Joint Venture (BLJV) has the right to acquire 100% of interest from Aur Resources Inc (Aur). The BLJV also has 76 claims spread across 1,975.3ha (MJL claims) and 12 claims covering 311.3ha (Hansen claims) adjacent to the Bachelor Lake property.

In November 2004 Metanor Resources Inc (Metanor) acquired the rights to Bachelor Lake from Campbell Resources (Campbell) for $2.3m. Metanor increased the capacity of the mill at Bachelor Lake in an expansion undertaken in 2008. Production from the mine exceeded 20,000oz of gold by February 2009. The company also plans to develop the Hewfran section with proven reserves at levels seven and eight.

Geology

"Production from the mine exceeded 20,000oz by February 2009."

The mine is located at an elevation of 100m and is covered by coarse and sandy glacial deposits. The mine lies west of the Chibougamau-Chapais greenstone belt, which is part of the Abitibi geological sub-province of the Superior Structural Province. Key mineral deposits in the region include the Agnico-Eagle (Telbel Mine), Golden Hope (Estrades deposit), Lac Shortt gold mine (now closed), Meston Lake Gold Mine and Gonzague Langlois Mine (Grevet).

Bachelor Lake has two post-ore fault systems: the Waconichi faults (WAC), trending N050° to N070° and dipping 70° to the south-east, and other faults (T faults), trending N020° to N030° and dipping 80° north-west to vertical. In this mineral resource three structurally controlled quartz veins have been identified: Main Vein, A Vein and B Vein.

Main Vein produces about 90% of the mine's mineral resources. A Vein was recognised at level nine and traced up to level four and, representing the greatest potential for additional resources, B Vein was discovered at level 11 and level 12. Bachelor Lake has two main mineral deposits: Bachelor and Hewfran.

Reserves

The total measured and indicated resources of the mine are estimated to be 841,591 metric tons at a grade of 7.79g/t Au. Of the measured and indicated resources, the Bachelor deposit includes 643,826 metric tons at a grade of 7.96g/t Au and the Hewfran deposit includes 197,765 metric tons at a grade of 7.24g/t Au.

Of the inferred resources, the Bachelor deposit includes 207,517 metric tons at a grade of 6.76g/t Au and the Hewfran deposit includes 218,630 metric tons at a grade of 6.30g/t Au.

Mineralisation

The key mineral resource of Bachelor Lake is gold. Gold associates with pyrite and correlates well with the pyrite content. The pyrite is spread across strongly altered rocks that are fragmented and injected by quartz / carbonates veins and veinlets.

"Infrastructure at the mine includes a hoist room, shaft house and mill."

In the mine area occurrences of gold, chalcopyrite and ilmenite have been discovered on the surface. These minerals are finely grained.

The gold and silver materials have a good correlation and appearance (1:1) in the mineral deposits. The highest correlation was observed from 1,919.6ft to 1,924.2ft with 0.631oz of gold and 0.574oz of silver.

Open-pit mining

The mine was operational until 1967 and produced 700,000t of zinc, lead and silver. In the 1980s Bachelor Lake was mined using the underground method. In 2005 it was again drilled after the mine was dewatered.

Infrastructure at the mine includes surface infrastructure and a hoist room, shaft house, mill (500t/day), tailing pond and core shack. A three-compartment shaft provides access to the mine up to level seven and further access is provided by a four-compartment shaft from level seven to level 12.

Access from Bachelor Lake's claims to the Hewfran claims is provided from level four, level six and level eight.

The 500t/day grinding mill consists of a head frame, bins, hoist and air compressor complex and substation. It also has an underground mine, ore processing complex, tailing disposal area, an office, warehouse and shop complex.

Expansion

After acquisition Metanor performed an advanced underground exploration programme to increase resources at the mine. The programme lasted for 12 months and focused on changing the hoist, deepening the shaft, developing drifting for underground drilling and bulk sampling.

"Metanor performed an underground exploration programme to increase resources."

In April and July 2005 an exploration and drilling programme was conducted and 69 holes totalling 13,345.55m were drilled. Of the holes, 40 intercepted resources with a cut-off grade of 3.43d/t Au on a minimum horizontal width of 1.5m or higher, while eight holes at a minimum horizontal width of 6m and 14 holes at a minimum horizontal width of 1.5m or higher had a cut-off grade of more than 10g/t Au.

On level 12 two fixed drill stations drilled the mine through azimuth drilling. Drill Station One drilled 6,854.55m and Drill Station Two drilled 6,496m.

In 2007 a feasibility study for mill rehabilitation and production start-up was conducted. Following these studies the development potential of the mine was established at 35,000oz/y to 40,000oz/y of gold for at least three years.

By December 2008 the operating capacity of the mill was increased by modifying and installing new motors. Until February 2009 the mill capacity was increased to 800t/day at minimal cost.

In November 2004 Metanor Resources Inc acquired the rights to Bachelor Lake from Campbell Resources for $2.3m.

The mine consists of 177 claims and two mining concessions spread across 4,837.4ha of land.

By December 2008 the operating capacity of the mill was increased by modifying and installing new motors.

The mine is located at an elevation of 100m and is covered by coarse and sandy glacial deposits.

The total measured and indicated resources of the mine are estimated to be 841,591 metric tons at a grade of 7.79g/t Au.

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.

Ludowici Screens and Feeders

SCREENS
Ludowici supply a full range of screen media and consumables to complement the world-class screen machines that they manufacture. Whether your requirements be for polyurethane, wedgewire, wire mesh or rubber, Ludowici are able to supply it.

FEATURES OF HORNET HEAVY DUTY BANANA SCREENS
• Capable of operation at up to 50% increased capacity over conventional horizontal screens.
• All major components are computer generated ensuring spare parts will fit with ease.
• High "G" force performance provides increased capacities and efficient desliming or media recovery.
• Deck cross-members are individually bottled for ease of replacement.
• Linear motion (straight-line) provided by the reliable Honert Exciter featuring the flexibility of in-situ stroke adjustment to the screen.
• Integral feed box and discharge lip form part of the screen deck.
• Suitable for modular wedge wire or polyurethane screen surfaces.
• Full continuous fillet welding and stress-relieving of all major component parts.
• Fully Huck-bolted on assembly
• Cross-members and drive beams are machined prior to assembly.
• Available in a wide range of sixes up to 14 ft. wide x 30 ft. long.
FEEDERS

PGM Vibrating Feeder 
Ludowici/Malco PGM Feeders are heavy-duty, high capacity vibrating feeders designed for use in arduous conditions such as primary materials handling applications. The PGM feeders are suitable for installations under large hoppers and can withstand head-loads and impact caused by large material lumps.
The feeder is driven by a twin-shaft, geared mechanism which delivers high "g" force and constant acceleration even under load, ensuring there is no capacity or throughput variation. A single, free-standing electric motor is connected to the mechanism either by a vee-belt drive arrangement or a cardan shaft.
Feeder installation is between horizontal to 10 degrees inclined and mounting is on heavy-duty steel coil springs.

Brute Force Feeder (BRU)
The Ludowici BRU Brute-Force Vibrating Feeders and Grizzly’s are your solution to troublesome primary crushing installations.
These machines are specifically designed to handle primary mineral streams containing maximum lump size of up to 1500 mm.
They are extremely robust and utilise heavy duty hard-faced liner panels, out of balance Exciter Mechanism drive units to ensure high ‘G’ force operation, and are installed on special heavy-duty rubber springs to minimize excessive movement caused by head-loads and impact.
The capacity range of these machines would be 500 – 4500 t/h.
Medium Duty Feeder (UF)
The Ludowici UF medium duty Vibrating Feeders are typically used to handle lighter minerals (coal, aggregate, sand, etc.) at feed rates ranging between 50 – 2500 t/h.
These feeders work best with relatively free-flowing and pre-sized (-250mm) material, delivering positive straight-line motion and consistency throughout due to high ‘G’ force operation.
The UF feeders are suitable for either floor mounting or cable suspension and come in sizes from 0.4m up to 3.3m wide and 0.75m to 5.0m in length.

Lafarge relies on Lippmann and Catco to put Niagara Quarry back in business

 

High quality cubical aggregate product

After remaining inactive since late 2007, Lafarge North America has reopened its Town of Niagara Quarry located in western New York. Lafarge had closed the quarry, which produces crushed stone primarily used in the region’s road projects, due to the weakened economic climate. The Niagara Quarry’s dolomitic limestone formation is a feature of the overall Niagara Escarpment geology.

Perry Galdenzi, commercial manager — Aggregates/Asphalt for Lafarge North America’s Eastern U.S. Region sheds some light on the area’s history. Niagara Quarry, once known as Redland Niagara, owned by Redland Quarries Inc., was acquired by Lafarge back in 1997. Lafarge Group today is recognized as the world’s leader in building materials — cement, concrete, aggregates and gypsum. Lafarge North America has several local operations in Western NY, including a cement crusher terminal in Buffalo and an asphalt plant in Lockport employing some 181 area workers. Lockport, just 12 miles east of Niagara, was originally opened in the 1950’s and produces 1,500 tons per hour of material, roughly two million tons per year. So when the recession hit in 2007, Lockport alone provided ample capacity to keep up with the needs of area construction projects.

Positive news for customers, company revenues and employment came in spring of this year, when Lafarge management anticipated a pick up in the economy, and the search began for the right contract crushing firm with the most reliable, efficient two stage crushing system to get aggregate production up and running again at the site. By May, crushing resumed to fill increased material demands, and the Niagara Quarry is currently operating six days a week.

“We previously ran our own Cedar Rapids impact crushing installation at this site. It was somewhat piecemeal and maintenance was a constant issue” states Lafarge’s Galdenzi. This time we decided to employ contract crushing and selected Catco Crushing out of Alden, NY to handle the project.” Catco’s state of the art Lippmann two stage crushing and screening plant consists of a robust Lippmann 3062 Portable Primary Jaw Plant teamed with a Lippmann 5165 Portable Secondary Impact Crushing Plant. The crushing circuit is currently producing 1-3/4-inch crusher run road base at 500 to 600 tph” says Galdenzi. “We eventually expect 200,000 to 300,000 tons from this plant and we have reserves for the next 25 to 30 years” Perry continues.

Catco (Concrete Applied Technologies Corporation), one of the major road builders in western NY, is owned by Mike Salvadore, a civil engineer licensed in the state of New York. Mike started the company in 1995 with 20 employees and revenues of around $3 million. Determined, unafraid of hard work and one who believes in accountability, Mike’s respected highway and heavy construction company is an American success story, as today he’s grown his firm into an operation with 140 employees and $40 million in annual revenues, largely serving the NY state DOT, the local cities of Niagara Falls and Buffalo and area counties. Lafarge has enjoyed a strong relationship with Catco and has been a major Catco material supplier for many years.

While Catco’s Lippmann two stage plant is highly efficient at crushing virgin limestone at the Niagara Quarry, Salvadore purchased the system for future large scale contract recycling jobs. “More than anyone in upstate NY, we have been committed to recycling” states Salvadore. “At some point we plan to have the largest recycle yard in Western NY” he claims.

Averaging 500-600 tph, Lippmann's 3062 Primary Jaw Plant teams well with Lippmann’s 5165 Secondary Impact Crushing and Screening Plant in this productive two stage aggregate crushing application.

Lippmann 3062 Primary Jaw Crushing Plant is ideal for high capacity aggregate and concrete recycle applications.

Mike points out some features on the Lippmann equipment. “Unlike other makes of recycle plants, the Lippmann 3062 Jaw Plant has higher clearance room under the jaw and employs a 60-inch x 30-foot recycle side discharge conveyor under the crusher complete with pan vibrating feeder.

An inline 55-inch Dings magnet removes rebar and other uncrushables. No small issue as this eliminates common hang ups with rebar at transfer points, and the consequent downtime that can be encountered with other crushing plants. Because we crush some 150,000 tons of recycled concrete per year on our own projects alone, a 30,000 ton pile of scrap rebar is not unusual for us” Mike states.

Catco investigated some track mounted crushing units, due to ease of portability, but because of the volume and tonnage Catco anticipates processing, the serious throughput that Lippmann’s 3062 Jaw provides was a better match for the company’s requirements, Mike explains.

Mike has always had a passion for the aggregate production side of the highway and heavy construction business. And when due diligence time came to select the right brand for their first crushing plant, Mike turned to Joe Sidonio of Upstate Screens and Crushers located in Holley, NY, Lippmann’s area representative.

Joe had previously sold Catco screens and other equipment and Mike’s first crushing plant purchase was a Lippmann 4800 Portable Impact Recycle Crushing Plant. Success with that machine, Mike’s experience with Joe’s company and Lippmann’s factory support convinced Catco to later upgrade to a larger Lippmann two stage concrete recycle crushing system.

Mike indicates his construction company presently owns some 70 pieces of CAT iron. “My CAT dealer tried to sell me Metso crushing equipment, but while I love CAT, when it comes to crushers, I trust Lippmann. Lippmann has phenomenal support. I had to go where you can be with people you can depend on and trust — day in and day out. Crushing equipment is just too big of an investment, too specialized. I spent a lot of time with Joe Sidonio and Bob Turner, Lippmann’s president at ConExpo. Joe showed me a Lippmann plant operating in Rochester, NY and I was impressed. I rented one a year or two later and was entirely convinced. Lippmann stands behind their equipment. Joe is out here making certain everything is operating optimally. Anyone can occasionally have problems, but it’s how problems get handled that’s critical in our business” Mike emphasizes.

Catco’s 3062 Lippmann Jaw Plant features convenient options like a hydraulic toggle which saves countless hours and allows the setting to be adjusted while crushing. The heart of the plant, a heavy duty recycle Jaw featuring a reliable rugged frame with ribbed steel plate construction, an oversized heat treated forged shaft and radial thrust tapered roller bearings, offers a huge 30-inch x 62-inch feed opening that accepts massive slabs of concrete full of rebar, reducing feed time and wear costs and designed to achieve maximum capacity. Reversible jaw dies assure maximum wear life. Mounted on a robust chassis with a travel height of 13-foot 6-inches, the plant is designed for easy set up and tear down, has a 62-inch x 20-foot vibrating grizzly feeder and hydraulic leveling legs.

The Jaw Plant is teamed with Lippmann’s 5165 Secondary Impact Crushing Plant featuring hydraulic curtain adjustment, a 6-foot x 20-footdouble deck screen, pan feeder, jacking legs, jib crane and cross conveyor for making multiple products.

A rock box from the previous installation feeds the Lippmann 3062 Jaw Plant’s 62-inch x 20-foot heavy duty vibrating grizzly feeder. The Jaw's huge 30-inch x 62-inch feed opening accepts large rock fractions reducing material preparation costs.

This Lippmann 5165 Secondary Impact Crushing Plant features hydraulic adjustment, a 6-inch x 20-inch double deck screen, pan feeder, jacking legs, jib crane and cross conveyor for making multiple products.

At the Lafarge installation, shot rock is loaded into CAT 730 haul trucks by a CAT 345B excavator. Dump trucks ramp up to a rock box which feeds the Lippmann Jaw Crusher Plant’s 62-inch x 20-foot flared type heavy duty vibrating grizzly feeder with AR steel liners and Hardox 400 hopper. The plant’s feeder is supported by heavy duty reinforcing ribs. The side discharge conveyor is sized to match the feeder and crusher capacities.

The drive choice for this plant was an electric power unit and variable speed drive for both the discharge conveyor and feeder. Key to the installation on the crushing site has been Bob Lewczyk, Catco’s equipment manager. Bob is in charge of Catco’s staff of mechanics at the company’s large, modern maintenance and service facility. Bob cut apart the old existing plant, organized conveying systems, electrical, pumping and redirecting water and other logistics.

Joe Sidonio explains that once Catco had the Lafarge contract in hand, Lippmann built the Jaw within four weeks, followed by the arrival of the self-contained Lippmann 5165 Impact Crushing and Screening Plant. The Jaw was assembled in one day and put in position using the existing rock box on site from the previous plant and employing the needed cribbing.

Mike indicates the Lippmann spread will remain at the Niagara Quarry Crusher the entire year and may process material there for some extended time. They will use their original Lippmann 4800 Impactor Plant to process material up top of the quarry.

While nationally, the recession has hit some metropolitan areas harder than others, Mike and Perry agree that the Buffalo/Niagara area experiences less peaks and valleys and remains closer to the center of commercial and private development activity. The local air base, big box stores such as Target and Kohls and median range housing developments with some high end subdivisions in areas such as Lancaster, a suburb east of Buffalo, continue to contribute to modest growth.

Bob Turner, Lippmann’s president stated “While we’ve built our reputation for designing and manufacturing highly reliable, productive products, outstanding customer support, is how we continue to grow our company. For all of our customers, like Catco and Lafarge, we are committed to the continued success of their business, throughout all economic cycles. Recently, we have experienced a very strong upturn in equipment demand and trust it will continue.”

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 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.

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 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.

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 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.

History of Ball Mill

Ball mill appeared in the early 19th century; 1870 in the grinding mill, based on the development of a uniform size marker rod mill; in 1908 it created a self-mill without grinding media. 30 to 50 years the twentieth century, the United States and Germany have developed a roll bowl mill, roller mill and other vertical type disc pulverizers. This year is mine mineral processing equipment as an essential part of the ball is more rapid development of the.

Ball mill is the material being broken, and then smash the key equipment. It is widely used in cement, silicate products, new building materials, refractory materials, fertilizer, ore dressing, and black glass ceramic and other non-ferrous metal production industries, and other various ore grindability of materials for the dry and wet grinding.

Ball grinding mill is a horizontal rotating device, outer gear, the two positions, lattice-type ball mill. Material from the feed device into the compound by air evenly into the mill screw shaft first warehouse, the warehouse there are ladder liner or corrugated liner, built in different specification steel balls, cylinder to convey ball into the action must generate centrifugal force After the fall height, produce severe impact on the material and abrasive.

To coarse grinding of materials in the first position after the board by the single compartment into the second warehouse, the warehouse lined with flat lining, steel ball inside, the material to further grinding. Powder discharged through the discharge grate plate to complete the grinding operation. Structural characteristics of ball mill from the feeding part, discharging Department, Rotary Department, Transmission Division (reducer, small transmission gear, motors, electrical control) and other major components. Hollow shaft with steel casting, lining Replaceable, slewing gear hobbing by casting process, the body inlaid cylinder liner wear, has good wear resistance.

Ball mill energy consumption in the course of work accounted for the majority of the whole process of cement production, including power consumption, integrated power consumption of cement accounts for about 60% -70%, so
how big the energy consumption of “downsizing” is a cement technology workers unremitting goal. Grinding equipment selection, based on cement and concrete properties (performance,mechanical properties, durability) as the core, not just the pursuit of the production process of reducing power consumption, but also to meet the needs of building energy saving.

“Standard density is low, a good additive compatibility, well age, high strength, help to improve the durability of concrete is the quality of cement concrete.” At the same time, also ensures the development of admixtures industry view, “admixture of cement industry can reduce the required particle bound to improve the performance of cement plays an important role.”

Turnkey dolomite crushing plant for sale

SBM Mining Machinery has always been emphasizing quarry solution and mineral mining processing solution especially Dolomite crushing plant and dolomite grinding process solution for Dolomite powder making , which has formed plenty of successful mineral ore crusher and grinding mill plants designs.

Dolomite stone crushing processing

Firstly, we select the usable materials and transmit all of them with the vibrating feeder. Then vibrating feeder pours them into primary Dolomite crusher. Then products of primary Dolomite crusher get crushed by secondary Dolomite crusher.

Secondary Dolomite crusher crushes stones into smaller size in most cases they can get used. But more regularly these products of secondary Dolomite crusher get screened by vibrating screen and whose can fit the requirement will leave this method and become the ultimate product as well as the others goes back to secondary Dolomite crusher or even primary crusher to have crushed.

Finally, Dolomite all become the right products . Tertiary Dolomite crusher is usually found in special crushing process. Tertiary Dolomite crusher will process stones into smaller size than secondary crusher.

We usually choose mobile crusher or portable Dolomite crusher is process. Because it’s really easy to use mobile Dolomite crusher or portable Dolomite crusher within this process.

Dolomite Manufacting Process

The mineral is worked by shallow pits. During mining the Dolomite is taken care of into different grades depending upon the colours because they fetch different prices as well as, because their suitability is determined by the colours. The mineral is utilized invariably by means of fine powder. Few important mine-owners have their own pulverizing plants; others target pulverizers.

Dead burnt refractory dolomite is manufactured in rotary kilns. Generally high-grade dolomite, containing combined impurities under 3%, is selected for dead burning.

The dolomite after dead burning is cooled in either rotary or reciprocating recuperative coolers. The air useful for cooling gets heated and is also again used as secondary air for combustion within the kilns. When D.B. dolomite is manufactured having an additive, it’s important to use somewhat higher firing temperature so that you can shrink the dolomite inside a reasonable time-cycle in the kiln. It’s been accomplished by improved thermal efficiency in the kiln. Some of the means to attain higher efficiency have been using insulating brick-back of the basic lining inside the hot zone and the optimum using secondary air from your recuperative coolers, in order to grab because the accessible heat as is practical in the cooling of the product.

Dolomite Grinding Machine

Dolomite grinding mill will be the machine that is used to create dolomite into powder which popular in industry dolomite. Usually dolomite powder is 140 meshes, 325 meshes, 600 mesh, 1000 mesh, 1600 mesh. There are numerous forms of dolomite powder machine: ball mill, Raymond mill, trapezium mill, questionable grinding mill, and ultrafine grinding mill. Those different grinding mills have different results of the granule size.

Jaw Crusher for Sale

Jaw Crusher Overview

Jaw Crusher is one of the main types of primary crushers in a mine or ore processing plant and also is one of the most widely used crushing equipment in mining industry. This series of jaw crusher can reach the crushing ratio of 4-6 and the shape of final product is even. Because it is primary crusher, Jaw crusher is designed for long life service with minimum maintenance for hard, tough, abrasive material and overload high capacity.

Jaw Crusher Parts

Jaw crusher mainly consists of two jaw plates, one is fixed jaw plate, the other is movable jaw plate. In addition, there are flywheel, toggle plate whose application is to protect jaw plate, and tension rod used to adjust the size of discharging open to meet different jaw crusher need.

Jaw Crusher Application

Jaw Crusher can be used in mining, metallurgical industry, construction, road and railway building, conversancy, chemistry, etc. In these industryes Jaw crusher is widely applied to crush high hardness, mid hardness and soft rocks and ores such as slags, construction materials, marble, etc.,whose pressure resistance strength is under 200Mpa.

Jaw Crusher Main Features and Benefits

1. Flexible capacity and high reliability
2. Simple structure and easy maintenance, jaw crusher mainly consists of two jaws
3. Over-loading protection, jaw crusher has toggle plate to protect it.
4. Stable performance, low operating cost
5. High crushing ratio which can reach 4-6, also high resistance to friction, abrasion and compression with longer operating life span.

Jaw Crusher Working Principle

Primary jaw crusher is typically of the square opening design, and secondary jaw crusher is of the rectangular opening design. Jaw Crusher reduces large size rocks or ore by placing the rock into compression. A fixed jaw board, mounted in a "V" alignment is the stationary breaking surface, while the movable jaw exerts force on the rock by forcing it against the stationary plate. The space at the bottom of the "V" aligned jaw plates decide the crusher product size gap, or the size of the crushed product from the jaw crusher. The rock remains in the jaw until it is small enough to pass through the gap at the bottom of the jaws.

Jaw Crusher Installation Instructions

1. jaw crusher is installed by the factory, the user should be checked after the receipt of the jaw crusher machine and eliminate the various problems arising from transport, and then install it.
2. rack installation, the vertical plane at the end of the level of tolerance of 0.5mm / m, the horizontal level degrees (measured on the spindle) Tolerance of 0.15 mm / m.
3. comprehensive inspection before starting the jaw crusher machine. The fastening of the fixed parts, each part of the ubrication as well as V-belt tension level is to check the suitability of the like should be the focus.
4. Check the overall circuit after cuting off jaw crusher switch, and a clear sign hanging switch.