Sunday, November 27, 2011

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.”

Saturday, November 26, 2011

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

dolomite-processing-equipment-300x168Firstly, 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.

Silica Making Process In Mining Industry

Second and then oxygen, silicon is easily the most abundant take into account Earth’s crust. It is found in rocks, sand, clays and soils, along with either oxygen as silicon dioxide, or with oxygen as well as other elements as silicates. Silicon’s compounds will also be found in water, within the atmosphere, in several plants, as well as in certain animals.

sand-making-plant1-300x225

Silica Making Process

If the input size of stones is smaller than 40mm, we recommend the Silica making flow designed with vsi5x series sand making machine, vibrating screen, sand washing machine, etc; otherwise, we’ve another solution made for you,This flow has vibrating feeder, jaw crusher, impact crusher (optional ), cone crusher, vsi5x series sand making machine,vibrating screen and sand automatic washer.

we just have to transport the satisfied size towards the sand making machine with a feed hopper, and When through the role of sand making machine, the last products- artificial sand is formed. After washing in sand washers, the pure sand meeting your requirement is produced.

Large silica stone( input dimensions are greater than 40mm) is transported to jaw crusher via vibrating feeder for primary crushing. Then a crushed materials are screened out into many different types with a vibrating screen.

The stone with satisfied dimension is transported to sand automatic washer, while the rest will probably be back to jaw crusher or cone crusher for breaking again. When from the role of sand making machine, the ultimate products – artificial sand is formed. After washing in sand washers, the pure sand meeting your requirement is produced.

Silica Sand Making Process Line

Sand making machine is utilized for silica sand manufacturing process, and power from various minerals. It is utilized in fine and medium size crushing of coarse material, rocks, stones, minerals, building aggregate concrete and other material. SBM Sand making machines are of high efficiency and high performance crusher, lower in maintenance and low operating cost.

Our high proficiency Sand making machines are made and manufactured to make fine quality sand rich in productivity output. The ultimate method is cubic with grounded edges.

Silica sand and aggregate can be used in preparing high quality concrete for building and construction purpose, so the sand particle has to be equiexed cuboidal and glommed edges.

Thursday, November 24, 2011

Mineral processing equipment

SBM can be a mineral processing mining equipment manufacturers in China, Also we export mineral processing machine to India,Nigeria, Australia, Russia, Canada, Egypt, UZ, Nubia, Peru, Indonesia, Brazil, Nigeria, Papua New Guinea, Kenya, Zimbabwe, Zambia, Ghana, Mexico, Philippines, Zimbabwe, Oman, Argentina, Guinea, KZ, etc. we also design mineral processing plant to satisfy your mining business need!

In extractive metallurgy, mineral processing, also called mineral dressing or ore dressing, is the procedure of separating commercially valuable minerals using their ores. Mineral Processing Equipment include crushing equipment,grinding equipment,Gravity machine, flotation machine and Magnetic separation …

 

History of Mineral Processing

Ahead of the advent of heavy machinery the raw ore was split up using hammers wielded by hand, a procedure called “spalling”. In a short time, mechanical means put together to achieve this.

For example, stamp mills were chosen for Samarkand as early as 973. These were also being used in medieval Persia. By the 11th century, stamp mills were in widespread use through the entire medieval Islamic world, from Islamic Spain and North Africa in the western world to Central Asia inside the east. A later example was the Cornish stamps, that includes a series of iron hammers mounted in a vertical frame, raised by cams on the shaft of a waterwheel and falling about the ore under gravity.

The easiest method of separating ore from gangue contains the selecting the individual crystals of each and every. This can be a very tedious process, particularly when the person particles are small. Another comparatively simple method depends on the various minerals having different densities, causing them to collect in different places: metallic minerals (being heavier) will give up of suspension quicker than lighter ones, that is carried further by way of a stream of water. The process of panning and sifting for gold uses both these methods. Various devices known as ‘buddles’ were chosen to consider good thing about this property.

Mineral Process Mining Equipment

Ball mill is surely an efficient tool for grinding many materials into fine powder. The Ball mill is utilized to grind many kinds of mine as well as other materials, or select the mine. It is traditionally used in building material, chemical industry, etc. There are 2 means of grinding: the dry process as well as the wet process. It may be split into tabular type and flowing type in accordance with various forms of discharging material.

Dryer can be used for drying materials with humidity or granularity in the industries of mineral dressing, building material, metallurgy and chemical. Rotating dryer can be utilized for drying many kinds of materials along with convenient and reliable operation.

This machine is principally found in ore selecting, building materials, metallurgy and chemicals to dry the types of materials with certain moisture and size. The rotary drier includes a strong adaptability which could dry many different types of materials having a simple operation method and security trait, so it is traditionally used.

SBM can supply you stone crusher or rock crusher used widely in mineral processing plants such as jaw crusher, cone crusher, impact crusher, mobile crusher, hammer crusher, ore crusher, grinding mills, grinding mill, vertical mill, trapezium grinding mill, vibrating feeder, vibrating screen, sand washing machine etc. You can get crusher price according to SBM online service.

Magnetic Separator can separate the raw materials with various magnetic rigidities. The device works beneath the magnetic force and machine force. Magnetic Separators are designed to recover ferromagnetic materials.

The separators are available in designs and sizes to provide solutions for many applications. The center of every separator will be the magnetic system with its unique design, with a proven record of high efficiency. The Magnetic Separators can be found in cyclic design with process vessel diameters from 220 mm to three,050 mm.