Tuesday, November 29, 2011

Nickel beneficiation process

nickel-ore-processing-plant-300x225Nickel ore is primarily divided into sulfide copper-nickel mine and nickel oxide ore, whose ore dressing and processing techniques are entirely various.

beneficiation Procedure nickel oxide ore presently utilized crushing and screening processes to pre-remove bulk rocks with weak degree of weathering and low nickel ore.In quarry nickel the nickel within the nickel oxide ore frequently scattered in gangue minerals within the type of isomorphism and their grain sizes are extremely fine, nickel oxide ore can’t be enriched by mechanical dressing techniques. On the contrary, they should be only sent for direct smelting.

Nickel ore process

Nickel Ore Mining procedure in South Africa Nickel Ore Mining consists of preparation for mining and extracting of nickel extract. Consists of the activities of separating and sorting the nickel ore until it becomes guli (shots) within the type of ferro nickel and also the use of nickel which can’t be separated administratively from the mining of the nickle.

Within the both nickel ore beneficiation procedure of sulfide copper-nickel mine and nickel oxide ore, nickel ore crushing and grinding are needed. Cs series cone crusher is widely utilized for nickel ore crushing. You will find regular cone crusher and brief head cone crusher. Both them have been utilized as nickel ore crusher. Following crushed by cone crusher, the supplies should be grinded by rod mill and ball mill prior to becoming sent to flotation. Vibrating screen is utilized to separate various sizes of nickel ore. The screening mining equipment is also essential for nickel ore crushing and grinding mill..

Nickel extraction and purification

Main nickel is produced from two extremely various ores, lateritic and sulfidic. Most sulfide ores are processed by utilizing pyrometallurgical methods to create a matte for further refining.

Throughout nickel processing, nickel is extracted from its ores by conventional roasting and reduction processes. Nickel ore is stockpiled in the nickel plant. It’s firstly fed into a SAG mill feed bin, then convoyed to SAG mill for main grinding. The grinded supplies pass to regular cone crusher after which brief head cone crusher for further grinding. The crushed particles are passed to a vibrating screen for separation. Fine particles move to fine ore bin, whilst big particles return to cone crusher for regrinding. The fine nickel ores move from fine ore bin to rod mill after which to ball mill whilst adding xuanthate and lime.

The nickel grinding procedure yields usually a metal of higher than 75% purity, that is needed for nickel liberation. The nickel ore particles that are fine sufficient following grinding will pass to flotation procedure for magnetic separation and refining.

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

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

Coal Grinder Equipment Used

SBM coal grinding mill can be a flexible design, we absorb the advantages of Loesche coal mill and then add features too. Coal grinding mill or coal pulverizer are designed for all grades of coal which is highly economical in terms of specific energy consumption. Raymond coal mill can grind all grade coal from hard coal, woodsy lignite, lignite to anthracite coal, oil coke, We’re able to offer you a turnkey project including design, install, and debug a myriad of coal grinding mill plants.

Ball Mill 

ball mill is the vital thing grinding mill for grinding following a crushing process, and ball mill is often a efficient grinding mill for grinding many materials into fine powder. Ball mill may be used for grinding various ore as well as other grinder-able materials wet or dry. Based on variations of discharging materials, The ball mill series are split up into grate type and overflow type, and ball mill goes to grate type.The ball mill is definitely an efficient grinder machine for grinding many materials into fine powder. The Ball mill may be used to grind many different types of mine along with other materials, so that you can select the mine.

Raymond Mill 

After a period of practice and improvement, Raymond mill structure gets perfect daily. For low consumption, low investment, atmosphere friendly , small occupation area, plus much more efficient compared to traditional mill, it’s broadly found in the region of metallurgy, building materials, chemical industry and mining to process powder.

The raymond mill can be used in grinding the non-flammable and non-explosive stuff that has got the Moh’s hardness below 7, humidity under 6%, for instance gypsum, talc, calcite, limestone, marble, feldspar, barite, dolomite, granite, kaolin, bentonite, bauxite, iron ore etc., the greatest items differ from 613 micron to 44 micron. Using the function of separator and blower, raymond mill can meet different customers’ demand.

Raw Meal Mill

SBM Machinery is probably the strongest national manufacturers in producing tube mills and cement raw meal mills. After exploration and summary inside the design, manufacture and use for a long time, we now have obtained series products with different specifications and different functional requirements to accomplish better ultra-fine grinding of slag, cement, limestone,concrete and other materials. Our worldwide market contains the next counries : Nigeria, Nigeria, India, Russia, USA, Canada, Australia, Egypt, Nubia, Peru, Indonesia, Brazil, Kenya,Papua New Guinea, Zambia, Oman, Zimbabwe, Mexico, Ghana, Zimbabwe, Philippines, Guinea, Argentina etc. Raw Meal Grinding Mill wholesaler manufacturer grinders like coal mills, ball mill, tube mills & cement mills with supreme quality assurance.

Raw Meal Preparation

Grinding the raw material with both horizontal and vertical mill requires vast amounts of energy. As a result, the main challenge in the grinding process would be to minimize energy consumption overall.

Our speed-regulated mill blowers substantially reduce energy consumption. So we use our MCS mill optimization system to improve the operating point and efficiency.

Quarry and Raw Materials

Extraction with the raw material (limestone, shale, silica, and pyrite) is performed by blasting or by scraping if you use shearer loaders.

The material is sent to the crusher where it really is reduced to chunks by crushing or pounding. Crushed limestone as well as the other recycleables in many cases are stored under cover to guard them in the elements and to minimize dust.

Typically the quarry is distant from your cement plant, therefore separate or standalone power equipment is going to be required.

Tube Mill

Us has designed a new single-drive and double slide-shoe tube mill with bearing support structure. It is easy to replace and straightforward to keep with good lubrication and light-weight weight. Type Y update sealing between slide-shoe housing and slide ring (of simple structure) provides better sealing performance. The mill gate from the cylinder can be used outside with excellent structure. New type mill door enables the usage of lining plate at same specification by internal cylinder. The tube mill is very designed with manhole lining plate in the traditional way, only using new classification lining plate and standard step lining plate. The tube mill can raise the grinding surface with better classified efficiency. New diaphragm structure can be used for adjustable lifting plate and glued lifting plate, being easy to install and maintain. The structure comes with one material spoon to increase feeding capability effectively.

Cement Ball Mill

Ball mill is surely an efficient tool for grinding mill many materials into fine powder. The Ball mill is used to grind many kinds of mine along with other materials, or to beneficiation. It really is traditionally used in building material, chemical industry, etc. There are 2 means of grinding: the dry process and also the wet process. It may be divided into tabular type and flowing type based on variations of discharging material.

Q: Recently we are planning to use fly Ash in Raw Mill Product at Product Airslide before going to CF Silo. Our fly ash having rich in carbon, allumina and silica. When we utilize this fly ash what problems will occured in kiln operation as well as quality of the Clinker(OPC & SRC). Pl. produce your valuable suggestions.

A: Adding flyash to the raw meal is fairly common. Using flyash is generally a means of overcoming a raw meal production bottle-neck. With the addition of a share of flyash to the raw mill product boosts the kiln throughput for a similar raw mill output.

Sometimes the quarry includes a really low clay component available and has to be suplimented with flyash or bottom ash.

Wednesday, November 23, 2011

Vertical Roller Mill

vertical-mill[1]

Vertical roller grinding mill is a type of grinding equipment featuring high-efficient and energy-saving. Vertical mill own included the crushing and grinding right into a single whole , that have completely satisfied the various requirements from the clients and materials. And also at once , Our company also have the super thin grinding mill of Vertical roller mill ,which have been catogrized since the new &high energy-saving solutions within the eight fifth period by the national cement development core .

Technical features of Vertical roller mill

1.Materials will receive the circular crushing process through the crushing and grading. Without any over-grinding phenomenon ,the Vertical roller mill have greatly improved the powder grinding efficiency .

2. Vertical roller mill is equipped with the grading system and also the grading impeller will adopt the newest and high structure design .With high grading precision ,the fine powder will have no coarse particles by the grading process.

3.The key units with the Vertical roller mill and grading driven electric motor will be controlled and adjusted from the frequency converter. And also the stable function and generability, the Vertical roller mill may be used to crush the types of materials with some other features and also the production process as well as the particle size could be adjustable .

Application of Vertical roller mill

Vertical roller mill mostly are placed on proceed the powder crushing manufacturing of the materials for example calcite, limestone, barite, fluorite, light dry stone coal, glaze, slag,mica, feldspar, brucite, wollastonite, kaolin,spores, vermiculite, potassium salt slag, garnet , quartz,etc.As well as the Vertical roller mill can also be used towards the non-metal mining areas with all the Mohs hardness of less than 7degree ,including mining metallurgy, chemical industry, electronics, medicine, daily chemical, agricultural, constructing ,etc.

Vertical Grinding Machine Technical Data

Vertical Mineral Mill Model and Technical Date

Model
LM130K
LM150K
LM170K
LM190K
LM220K
LM240K

Rotate Median Diameter (mm)
1300
1500
1700
1900
2200
2400

Capacity ( t/h)
10~30
13~40
18~57
23~72
36~114
41~128

Product Size
mm
170~45
170~45
170~45
170~45
170~45
170~45

mesh
80~325
80~325
80~325
80~325
80~325
80~325

Moisture
≤1%
≤1%
≤1%
≤1%
≤1%
≤1%

Max Feeding Size ( mm)
<38
<40
<42
<45
<50
<55

Moisture of Feeding Material
<4%
<4%
<4%
<4%
<4%
<4%

Moisture Should Be Dry
<15%
<15%
<15%
<15%
<15%
<15%

Temperature of Inlet (℃)
<350
<350
<350
<350
<350
<350

Temperature of Outlet (℃)
70~95
70~95
70~95
70~95
70~95
70~95

Power of Main Motor(kW)
185~220
250~280
355~400
450~500
710~800
800~900

Overall
Dimension
Length(mm)
3500
4200
4700
8500
10200
11700

Width(mm)
3400
3900
4500
5600
6700
7700

Height (mm)
5800
7100
8300
8800
10600
12200

Weight (t)
48
75
90
100
125
160

Vertical Coal Mill Model and Technical Date

Model
LM130M
LM150M
LM170M
LM190M
LM220M
LM240M

Rotate Median Diameter (mm)
1300
1500
1700
1900
2200
2400

Capacity ( t/h)
10~15
16~22
20~28
26~35
35~45
40~50

Product Size ( R0.08)
<15%
<15%
<15%
<15%
<15%
<15%

Moisture
<1%
<1%
<1%
<1%
<1%
<1%

Max Feeding Size (mm)
<38
<40
<42
<45
<50
<55

Moisture of Feeding Material
<15%
<15%
<15%
<15%
<15%
<15%

Temperature of Inlet (℃)
<350
<350
<350
<350
<350
<350

Temperature of Outlet (℃)
75~95
75~95
75~95
75~95
75~95
75~95

Hardgrove Grindability Index (HGI)
>55
>55
>55
>55
>55
>55

Power of Main Motor ( kW)
185
250
315
400
500
560

Overall Dimension
Length (mm)
3500
4200
4700
8500
10200
11700

Width(mm)
3400
3900
4500
5600
6700
7700

Height(mm)
5800
7100
8300
8800
10600
12200

Weight ( t)
46
75
94
100
122
157

Tuesday, November 22, 2011

Stone Crushing Plant Supplier South Africa

As the second biggest continent, mining Africa implies quantities of resources. African mineral reserves rank 1st or 2nd for bauxite, cobalt, diamonds, phosphate rocks, platinum-group metals (PGM), vermiculite, and zirconium. Apart from these minerals, there are many other minerals which are also present in quantity. Following is data of mining Africa minerals in 2005 : bauxite 9%; aluminium]] 5%; chromite 44%; cobalt 57%; copper 5%; gold 21%; iron ore 4%; steel 2%; lead (Pb) 3%; manganese 39%; zinc 2%; cement 4%; natural diamond 46%; graphite 2%; phosphate rock 31%; coal 5%; mineral fuels (including coal) & petroleum 13%; uranium 16%.

From these we can see that mining Africa is richly endowed with mineral reserves and ranks first or second in quantity of world reserves. There is a great demand to Africa mining equipment for crusher manufacturer in Africa. These will need large quatity of stone crusher plants for Africa. Stone Crushing Plant Supplier

Our core business is to manufacture crushing equipment, grinding machine and screening plant. Whether we supply Beneficiation machine, stone crushing plant according to the needs of customers. Our worldwide market consists of the following counries : South Africa, Nigeria, India, Russia, USA, Canada, Australia, Egypt, Nubia, Peru, Indonesia, Brazil, Kenya,Papua New Guinea, Zambia, Oman, Zimbabwe, Mexico, Ghana, Zimbabwe, Philippines, Guinea, Argentina etc. Stone Crusher Plant 

Stone Crushing Process includes vibrating feeder, jaw crusher, cone crusher, impact crusher, vibrating screen, belt conveyor, electric controlling system and dust catcher etc. The designed capacity is from 50t/h to 500t/h. To meet customer’s specific requirement, we can make different design to meet various needs. Process of stone production line

Raw materials are evenly fed into the jaw crusher by vibrating feeder as primary crushing. Then the belt conveyor transfers the elementary products into impact crusher or cone crusher as secondary crushing. Then, the secondary products are separated into different sizes by the vibrating screen (screening machine), and the stone which does not reach the required size will be return to the impact crusher for re-crushing. Accordint to the capacity, we design these different stone crusher plant: 40-60TPH rock crushing plant, 100-120TPH rock crushing plant, 150-180TPH rock crushing plant, 200-250TPH rock crushing plant, 300-3500TPH rock crushing plant. Factors that affect the stone production line

1. The kind of raw materials to be crushed

2. The hardness of the raw materials (Hardness)

3. The max. feeding size of the raw materials before into the crushing system (Input Size)

4. Requested product sizes, percentage of the sizes, and their usage (Output Size)

5. Hour capacity of the crushing line (Capacity)

This stone production line has features of high automaticity, adjustable size of output products, low energy consumption, and good shape of the products. It is suitable for various engineering project constructions, such as highway, bridge, building and so on.

Selection Crushing Plant

The selection of crusher plant depends upon the kind and amount of material to be crushed. Gyratory and jaw crushers represent the majority of primary crushers used at mining operations today, although some operations use roll impact crushers, low-speed roll sizers and feeder breakers. Cone crusher  remain typically the most popular for fine crushing applications, although some mines use vertical impact crushers for tertiary and quaternary crushing.

Major Equipment Select

The key equipment in a primary crushing circuit usually includes only a crusher, feeder and conveyor. Secondary and tertiary crushing circuits have a similar basic equipment items, along with screens and surge storage bins.

Other Selection mining equipment components of crushing circuits can include:

  • Man-lift elevator
  • Sump pumps
  • Air cannons
  • Air vacuum cleanup systems
  • Water booster pumps
  • Rock grapple
  • Service trolleys
  • Rock breaker
  • Apron feeder for the primary crusher
  • Overhead crane
  • Dust collection/suppression system
  • Freight elevator
  • Belt monitoring systems
  • Conveyor belt weigh scales
  • Belt feeders
  • vibratory feeder  
  • Screw feeders
  • Lime/cement silos
  • Bin ventilators
  • Sampling stations
  • Eccentric trolley removal cart
  • Service air compressor
  • Conveyor belt magnets
  • Conveyor gravity take-up service winch
  • Conveyor belt metal detectors
  • Conveyor belt rip detector

Sand Crushing Plant Selection

The main sand crushing mining equipment selection depends upon sand production scale, stone lithological characters and material input size. The key crushing is an open production process. The current primary sand crushers are jaw crusher and impact crusher.

To fulfill customer’s element sand fineness modulus and powder content, in addition to simplify the sand making production process, We recommend you sand screening mining equipment avibrating sand screen. Only utilizing the sand crushers with sand screen can you greatly enhance the sand manufacture of different required size.

Cube Crushing Machine

Cube Crushing machine for sale:

Dry-cast concrete blocks are a popular building material. A concrete cube is a bastard of architecture, an unpleasant sight that makes the squeamish 
turn 
their 
heads 
away feeling slightly 
sick. 


A
concrete cube 
at 
the outskirts 
of the City is something you run away from: when we kids from the concrete cubes become 
successful and 
well‐off, 
we 
look 
down on 
our 
old 
neighborhood, we 
notice 
how inhumane 
it is to 
live 
in,
and how 
loud,
ugly 
and some what 
stinking 
it 
is.

Concrete is the most important contemporary civil engineering materials. Concrete is artificial stone conservation which is made up of a certain percentage of preparation with cementing material, aggregate and water, by mixing vibration molding, under certain conditions.

Concrete jaw crusher 

Concrete jaw crusher could be popular in concrete crushing or concrete recycling industry. Boasting greater efficiency and sturdiness, concrete jaw crusher suits what’s needed of breaking outsized, super-thick and hard objects. Concrete jaw crusher is good machinery for your substructural construction of mines, bridges, roads and civil infrastructure. Concrete jaw crusher on the market from SBM is very popular in concrete crushing plants and related crushing industries etc.

Concrete mobile crusher 

Concrete mobile crusher or mobile concrete crusher includes mini concrete crusher, used concrete crusher, concrete recycling machine, concrete cube crusher, concrete breaker machines, etc. In accordance with SBM products, concrete mobile crusher can be separated into four types for example crawler type concrete crusher, jaw concrete mobile crusher, impact concrete mobile crusher, cone mobile concrete crusher etc.

Monday, November 21, 2011

Artificial sand for construction

As the largest manufactured sand plant, sand making machine producer in China, SBM Machinery sets the standard on good quality manufactured sand equipment.

As a possible expert manufacturer of artificial?sand making equipment, SBM provide probably the most professional kind of artificial?sand making plant. ?SBM have designed sand process for 1000s of clients from greater than 60 countries and serviced for field of sand making and sand shaping for longer than Ten years.

Artificial Sand For Construction

Artificial Sand is widely used in highway construction, concrete making, etc. There are many types of stones can be produced into sand. Including basalt, granite, limestone, marble, quartzite, sandstone, cobble stone crusher, river stone etc. Step one is crush, it maybe through 1 or 2 steps for crushing, it’s depend on materials. Since the field of industry application gradually expanded, the gradual using natural sand work countless didn’t keep pace while using various sectors of latest world development needs. Generally, machine-made sand is produced to satisfy the fantastic needs.

In line with the notion of machine-made sand, sand is kind of rock crusher particles with diameter lower than 4.75mm after removing dirt, crushed and screened while soft rock and weathered rock aren’t included. Sand specifications: according to fineness modulus (Mx), sand specification is put into coarse, medium and thin. And among this, fineness modulus of coarse sand is 3.7-3.1, and the medium sand is 3.3-3.0, and the thin sand’s fineness modulus is 2.2-1.6.

Artificial Sand Making Process Line

Sand making machine is used for artificial sand manufacturing process, and power from various minerals. It really is utilized in fine and medium size crushing of coarse material, rocks, stones, minerals, building aggregate concrete along with other material. SBM Sand making machines are of high quality and high end crusher, low in maintenance and low operating cost. Our high proficiency Sand making machines are made and manufactured to create top quality sand rich in productivity output. The ultimate strategy is cubic with grounded edges. Artificial sand and aggregate is utilized in preparing good quality concrete for building and construction purpose, and so the sand particle must be equiexed cuboidal and glommed edges.

Artificial Sand Making Machine

VSI5X Crusher becomes the core equipment in sand making business. It adopts Germanic advanced technique and owns several patents and independent intellectual property rights. VSI5x series VSI crusher is extremely recommended to crush high hardness materials as iron ore, nonferrous metals, corundum, and bauxite, quartz sand, basalt, etc.

Sand making machine is required for artificial sand making purpose, and power from various minerals. It is actually found in fine and medium size crushing of coarse material, rocks, stones, minerals, building aggregate concrete along with other material. SBM Sand making machines are of best value and powerful crusher, low in maintenance and low operating cost. Our high proficiency Sand making machines were created and manufactured to create high-quality sand full of productivity output. The past technique is cubic with grounded edges. Artificial sand and aggregate can be used in preparing excellent concrete for building and construction purpose, hence the sand particle needs to be equiexed cuboidal and glommed edges.

If the input size your materials is smaller than 40mm,we recommend the sand making flow constructed with vsi5x series sand making machine ,vibrating screen, sand washer, etc; otherwise, we now have another solution created 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. In accordance with different process requirements, various equipment could be combined to fulfill the technological requirements of varied customers.