sbmzhcn Blog find crusher and grinding mill in China

July 31, 2012

Wheel mounted crushing plant

Filed under: Uncategorized — sbmzhcn @ 6:58 pm

Wheel mounted crushing plant:

Wheel mounted mobile crushing plant, or portable crushing plant is one of the major crushing plants with high mobility.

The wheel plants are available as individual crushing or screening components or packaged into a complete aggregate processing system with crushers, screens, conveyors, feeders etc.

Wheel mounted crushing plant for recycling:

crusher machinery manufacture wheel mounted crushing & screening plant of compact structure for recycling. This semi-mobile crushing plant can be transported using a truck with drag-on hook system (for example) and is ready for operation in just 10 minutes.

The crusher produces up to 450tonnes of cubic high-quality grain per hour from rubble, asphalt and concrete. The YGFS series and YSF series are easy to operate and all service work can be carried out from the ground.

Wheel mounted crushing plant for quarrying:

Primary, secondary, tertiary wheel plants are available for the contractors for quarrying, road construction and in-pit, open-pitmining, mineral processing, materials handling.

crusher Machinery manufactures a full line of primary portable jaw crushing plant, secondary portable cone crushing plant, secondary portable impact crushing plants of YSFseries. By equipping with screen equipment and conveyor equipment, a complete portable processing system will be created.

crusher wheel mounted crushing plant designs allow the complete primary crushing system to be shifted to different locations within the mine or quarry pit. Theportable crushing plant offers a flexibility to larger operations that minimize truck haulage from the operating face robo sand project report.

Wheel mounted crushing plant for aggregate plant:

YGFS series wheel mounted crushing plant is an ideal crushing plant for aggregate production with high mobility.

The closed-circuit crushing plant equips with vibrating feeder, impact crusher, vibrating screen on the board. The raw materials can be fed directly by an excavator, the oversized particles will be conveyed by the belt conveyer fixed on the flatbed trailer.

This type portable crushing plant is suitable for produce high grade aggregate used as building aggregate and construction aggregate from basalt, granite, hard limestone, cobble stone, sand & gravel, marble, quartz, river stone etc.

What is coal

Filed under: Uncategorized — sbmzhcn @ 10:34 am

Coal is a fossil fuel and is the altered remains of prehistoric vegetation that originally accumulated in swamps and peat bogs.

The energy we get from coal today comes from the energy that plants absorbed from the sun millions of years ago. All living plants store solar energy through a process known as photosynthesis. When plants die, this energy is usually released as the plants decay. Under conditions favourable to coal formation, the decaying process is interrupted, preventing the release of the stored solar energy. The energy is locked into the coal.

Coal formation began during the Carboniferous Period – known as the first coal age – which spanned 360 million to 290 million years ago. The build-up of silt and other sediments, together with movements in the earth’s crust – known as tectonic movements – buried swamps and peat bogs, often to great depths. With burial, the plant material was subjected to high temperatures and pressures. This caused physical and chemical changes in the vegetation, transforming it into peat and then into coal.

Coalification

The quality of each coal deposit is determined by:

  • varying types of vegetation from which the coal originated
  • depths of burial
  • temperatures and pressures at those depths
  • length of time the coal has been forming in the deposit

The degree of change undergone by a coal as it matures from peat to anthracite is known as coalification. Coalification has an important bearing on coal’s physical and chemical properties and is referred to as the ‘rank’ of the coal. Ranking is determined by the degree of transformation of the original plant material to carbon. The ranks of coals, from those with the least carbon to those with the most carbon, are lignite, sub-bituminous, bituminous and anthracite (see ‘Coal Types’ diagram) robo sand project report.

Types of Coal

Initially the peat is converted into lignite or ‘brown coal’ – these are coal-types with low organic maturity. In comparison to other coals, lignite is quite soft and its colour can range from dark black to various shades of brown.

Over many more millions of years, the continuing effects of temperature and pressure produces further change in the lignite, progressively increasing its organic maturity and transforming it into the range known as ‘sub-bituminous’ coals.

Further chemical and physical changes occur until these coals became harder and blacker, forming the ‘bituminous’ or ‘hard coals’. Under the right conditions, the progressive increase in the organic maturity can continue, finally forming anthracite.

In addition to carbon, coals contain hydrogen, oxygen, nitrogen and varying amounts of sulphur. High-rank coals are high in carbon and therefore heat value, but low in hydrogen and oxygen. Low-rank coals are low in carbon but high in hydrogen and oxygen content.

July 30, 2012

What is Aggregate

Filed under: Uncategorized — sbmzhcn @ 6:44 pm

What is Aggregate?

Aggregate is produced in or near most every city and town in Canada and the United States. Annual per capita consumption of aggregate is about 10 to 15 tons in Canada and 10 tons in the United States. The industry is comprised of 3 main sectors; construction sand and gravel, industrial sand and gravel, and crushed rock. Crushed stone and sand and gravel are most often used by the construction industry.

Industrial sand and gravels are used for purposes such as foundry operations, glass manufacturing, abrasives and filtration beds of water-treatment facilities, as a source of calcium in fertilizers, as a metallurgic fluxstone, as filtration systems.

Aggregates make up 70 to 80 percent of the volume of concrete and aggregates used in asphalt mixtures (roadways – hot mix asphalt, cold mix asphalt, surface treatments) comprise approximately 95 percent of the mix by mass. Thus, all roads, sidewalks, buildings, structures, and anything made from concrete require aggregates.

Aggregates include crushed stone, sand and gravel, and are the most abundant natural resource available. Used as a primary raw material component in construction, agriculture, and other chemical and metallurgical industries. Since the value of aggregate is low and the weight of the product is high, the cost of transportation becomes a primary factor in the consumer cost. The aggregate industry is a major contributor to and a key indicator of the economy in any region Raymond Mill Manufacturers In India.

Where is Aggregate Used ?

Aggregate is produced in or near most every city and town in Canada and the United States. Annual per capita consumption of aggregate is about 10 to 15 tons in Canada and 10 tons in the United States. The industry is comprised of 3 main sectors; construction sand and gravel, industrial sand and gravel, and crushed rock. Crushed stone and sand and gravel are most often used by the construction industry robo sand project report.

Aggregates are produced for a number of reasons:

  • concrete aggregates,
  • road base and coverings and road stabilization,
  • asphaltic concrete aggregates and other bituminous mixtures,
  • construction fill,
  • concrete products, such as blocks, bricks, pipes, etc.,
  • plaster and gunite sands,
  • snow and ice control,
  • railroad ballast,
  • roofing granules,
  • filtration,
  • other miscellaneous uses.

The general public collectively consume the greatest amount of aggregate through government projects and government responsibilities. Public works utilize up to 65% to 70% of all aggregate in the construction and maintenance of roads and through the construction of larger buildings such as schools, hospitals, and administration buildings. The following chart puts some perspective on aggregates use in everyday life.

Crushed aggregate remains the main competitor for sand and gravel, and competition for crushed rock includes combinations of the following products (USGS):

  • Geotextiles ­ both an ally and a competitor
  • Soil Cement
  • Lime Stabilized Soil
  • Rubblized Portland Cement Concrete (PCC) Pavement
  • Crack and Seat PCC Pavement
  • Recycled or Virgin Asphalt as Base
  • Construction and Demolition Waste as Base

Wet Ball Mill Procedures

Filed under: Uncategorized — sbmzhcn @ 10:22 am

mining companies or raw materials manufacturers use ball mills in the process of grinding ore, minerals or other materials. The wet ball mall is the key piece of equipment for grinding the ore after the crushing process completes Raymond Mill Manufacturers In India.

Wet ball mill Viscosity

Wet Ball Mill

Wet Ball Mill

To use a wet ball mill appropriately, it is important to match the viscosity of the batch to the material being ground. Low-viscosity batches excessively wear the wet ball mill, while high viscosity batches prevent the material from being ground correctly.

Batch Size

Batch size determines the time needed to complete the batch. As wet ball mill grinding is a tedious, often long process, a larger batch may exceed an eight-hour working shift. Adjust batch size to ensure sufficient material fills all voids and slightly covers the grinding media, keeping in mind the space needed for the ball charges Raymond Mill Manufacturers In India.

Determining Ball Charge Size

Calculate ball charges and viscosities by using smaller-sized balls for the lower viscosities and the larger-sized balls for higher viscosities. For lower viscosities, use small flint pebbles as an example, 1-1 1/2 inch or use 1-1 1/2-inch porcelain balls, 75 to 90 Kreb units (a measurement of viscosity as defined by the American Society for Testing and Materials, ASTM) and 600-1,100 centipoise, a dynamic measurement of viscosity.

Wetting Agents

Correct wetting agents or surfactants increase batch size and decrease grinding time because the agents help break down the aggregated particles’ surface tension, allowing for a greater stability of the finished product.

July 29, 2012

VSI Crusher Machine

Filed under: Uncategorized — sbmzhcn @ 6:34 pm

VSI Crusher Machine Overview

VSI crusher, or vertical shaft impact crusher, is a kind sand making equipment aims to produce artifical sand, manufactured sand. crusher B series VSI crusher is of high efficiency and high performance crusher, low in maintenance and low operating cost.

Our high proficiency VSI crusher is designed and manufactured to produce fine quality sand with high productivity output. The final product is of cubical shape with grounded edges, which is widely used in concrete, building, construction.

VSI Crusher

VSI Crusher

We have developed a VSI Crusher having capacity 30 Tons per hour to250 tons per hour, with a feed size up to 40 mm to 100 mm. Generally the grit below 6 mm size for Rotopactor is not available in ample quantity. To supply grit below 6mm, above 30 tons per hour capacity VSI crusher machine can be used for making grit. It produces about 50% of metal of 20mm size and 50% grit. 20 mm Metal is also having good demand. This avoides producing unnecessary slow moving metal (below 12mm etc).The stone crusher can be set for 40 mm opening,so more production can be achieved from 16X10 crusher or bigger size. This 40 mm from jaw crusher can be recrushed in our VSI Crusher and reduced to 20 mm cubical metal and remaing below 12 mm can be fed to Rotopactor for converting in sand.

The Jaw crushers are generally used for crushing stone to make metal for concreting work. The capacity of the jaw crusher s is the factor of RPM and the size of the crusher. Demand for different sizes of crushed product differs from time to time. For example, when a major new road is built, demand will differ greatly from the time when normal building construction or road maintenance is carried out. The worst situation is that it is not possible to sell all fractions that are produced. These must be either be sold at low prices or stocked in a dump pile with an environmental impact. Even a small per cent of surplus production will soon cause expensive problem. This material has been expensive to produce. The cost of drilling, blasting, transportation, etc are same as for the prime material. Much can be gained if the right amount of material could be produced to meet the actual demand, and also accommodate changing demand.

Advantage of VSI Crusher

For crushing bigger size metal, Jaw crusher should run at lower rpm. The main drawback is when the crusher is set for bigger size the finer crushed product is more flaky. (Read the advantage of Cubical metal over flaky metal) For getting cubical crushed product VSI crusher should be used as secondary crusher. Thus we can reduce the crushing ratio, so product is more cubical.First crushing the big rock to 40 mm size, and then again crushing it in VSI can give better quality of crushing. The fines can be reduced in VSI crusher. With this arrangement there is no unwanted material produced, the crushed material is only as per the demand, and other unwanted material is reduced to Sand. There for all the material can be sold out immediately, with out stocking it in piles. The production of prime material is also increased. In general a 20X12 crusher gives a out put of 20 tons per hour, Out of this only 35% is 20mm metal ( having more demand). Remaining is unwanted material. With VSI crusher in series, 20 mm metal can be increased to 60 %. This gives a substantial reduction in unwanted material. Automatically there is saving in power lost in crushing.

One jaw crusher of 20X12 size and one VSI crusher can give more production than four Jaw crusher of 20X12 models, with a saving in overall cost of installation, and also saving in power.In addition the produced material is having very good cubical shape. V.S.I crushers are the best substitute for Jaw crushers for finer crushing. Crushed Product in V.S.I. crusher is cubical compared to Jaw crusher. The main draw back of Jaw crusher is when the jaws of the crusher are worn out, the crushed product is more flaky. The V.S.I crusher excels at meeting today’s specification sand production need. Complete cubical shape of the crushed product, gradation control, and high production yield per hp can be achieved. Variable production versatility can be achieved in making fine to coarse material. V.S.I. Crushers are unbeatable in making a consistence cubicle particle shape.

In Jaw crusher the crushing is due to compression and mainly by cleavage fracture. Cleavage fracture occurs when the energy applied is just sufficient to load comparatively few regions of the particle to the VSI Crusher : fracture point. Some aggregates is highly planner, and when energy is releasedalong these planes a flatter product is produced. There is more wear of the liners. In VSI crusher crushing is due to impact. The stone is accelerated in a rotor. This material strikes on anvil sector, and gets shattered in uniform particles of more cubical shape. This reduces the power required for crushing. The jaw crusher s or cone crushers can take larger feed size.

The feed material enters the machine through the feed tube, of the rotor. The material is thrown at a vigorous speed, due to centrifugal force, and the material strikes on the anvil sectors or the material previously accelerated. The residual kinetic energy of the material is utilized for making better surface texture. Thus full utilizing of the energy. It allows lower H.P. required with less wear, and gives high production yield.

Due to patented geometric design of the crushing chamber, the surface texture of the crushed product is much better, and requires less R.P.M. of the Rotor.

A special designed Rotor, gives a very long wear life. Stone lining is formed on the wearing surface by stone, reduces the wear cost. A specially designed wear tip (patented), gives four times more life, then the tip plates used in other make.

Vertical Shaft Impact Crusher Application

The vertical crusher is multifunctional, because it can work as a sand making machine, also as a sand shaping machine. PCL VSI vertical crusher manufacturer of crusher Company make sure the high quality of end products, so the sand making machine plays an important role in crushing minerals into pieces of the whole mining industry.

PCL VSI Vertical Crusher is widely used in most kinds of minerals, carborundum, cement, refractory material, construction sand, glass raw material, stone stock and all kinds of metallurgy slag, especially carborundum, sintered bauxite, magnetite, such materials are with features of very hard and anticorrosion. In addition, it is more productive than other kinds of crushers due to its function and structure.

July 28, 2012

Vibration Screens VTK, Coarse Screens VGO

Filed under: Uncategorized — sbmzhcn @ 6:16 pm

Vibration Screens VTK

VTK Screens are suitable for screening of material of the grain size 0-250mm, the mesh size 2 – 200mm. The material can be aggregate, gravel sand, ore, coal, coke etc. VTK Screens are suitable for dry and wet screening.

VTK Screens make circular movement. The movement is powered by unbalanced exciter located in the centre of gravity of the machine gold grinding mill for sale in uk .

The VTK Screens are produced with 1 – 4 screening decks, which can be made of steel, rubber or plastic.

VTK Screens advantages:

High capacity and exactness of screening, which can be reached by a suitable adjustment of the screen parameters depending on the required limits of screening and characteristics of the screened material.

Resistance against clogging and sticking of the screened material on the screening decks.

Minimum operation costs, which results from the balanced machine design, utilization of many years’ of screen operation experience and unification of parts.

Perfect coverage against dust gold ore mill for sale in uk.

Easy exchange of the screening decks.

Simple visual check of the screening process and the screening decks condition by inspection holes.

Coarse Screens VGO

VGO Coarse Screens are suitable for separating the clay from the input material prior to its entrance to the technological line, the grain size of the material should be up to 1m, and 1 to 2 screening decks. The upper deck has a grate and the screening slot of up to 150mm. The lower deck can have a screen with the mesh size of 35-63mm. The material can be aggregate, gravel sand, ore etc.

VGO Screens make circular movement. The movement is powered by unbalanced exciter located in the centre of gravity of the machine.

VGO Screens advantages:

Resistance against clogging and sticking of the screened material on the screening decks

The cascade design of the grate deck make the screening of finer fractions from the upper deck of the coarse screen more effective.

Minimum operation costs, which results from the balanced machine design, utilization of many years’ of screen operation experience and unification of parts.

Easy exchange of the screening decks.

High quality high affectivity + highly economic operation.

Vibrating feeder

Filed under: Uncategorized — sbmzhcn @ 10:21 am

vibrating feeder profile

Vibrating Feeder

Vibrating feeder

Vibrating feeder is a kind of index advanced feeding machine equipment. Can be widely used in mining, metallurgy, coal, building materials, chemical, electric power industries, used to block, makings shape and powder material from the bunker or funnel uniform continuous or to quantitatively by feeding jaw crusher machine for sale in africa.

Vibrating feeder say again vibration feeding machine. Vibrates the feeding engine in the production process, may massive granular materials from store in the bunker even, timing, to give continuously is expected in the installment, in the sand production line for vibrating feeder stave machinery continuous evenly feed, and coarse material, vibrates the feeding machine widely used in metallurgy, coal, ore dressing, building materials, chemical, grinding compound sectors such as crushing, screening combination of equipment.

crusher vibrating feeder advantages

1, comprehensive index vibration steady, reliable operation, long service life, simple structure, feed even, continuous performance is good, excitation force adjustable;
2, operation and controllable Angle always change and control flow, convenient operation; Eccentric piece for the vibration source, low noise, less consumption, adjust performance is good, no rush material phenomenon;
3, enclosed airframe adopt closed-end fuselage vibration can prevent dust pollution smooth, reliable operation, long service life;
4, exciting force can adjust excitation force, can always change and control flow, convenient adjustment stability;
NO5 well-equipped alloy steel by manger made of alloy steel plate, manger applicable transportation high temperatures, severe worn and corrosive materials

Vibrates the feeding engine installation should note

1, vibrating feeder for example for ingredients, quantitative feeding, to ensure smooth and steady feedstock’s, prevent materials should be installed horizontally, such as analysed raw material continuously general feeding, can pour 10 ° under installation. For viscous material and large water under the material can pour 15 ° installation. Specific according to their own needs can be properly adjust the Angle jaw crusher machine for sale in south africa;
2 the after install, there shall be vibrating feeder 20mm swimming clearance, transverse should level positions, suspension devices using the flexible connection;
3, empty before all, should will try once, especially strong bolts of vibration motor bolts, continuous operation 3-5 hours, should be retightened once;
4, commissioning, two vibration motor must to rotation;
5, feeding in operation process of the often should check amplitude, current and the stability of the abnormal noise, shall promptly parking processing;
6, motor bearing once every 2 months charging high temperature lubricating oil, filling a lubricant should monthly season;

Conclusion:

crusher vibrating feeder quarter performance is good, no rush material phenomenon; Simple structure, reliable operation, regulating convenient installation, light weight, small volume, maintenance is convenient; When using closed structure when the fuselage can prevent dust pollution; Low cost advantages.

July 27, 2012

Vertical and horizontal grinders

Filed under: Uncategorized — sbmzhcn @ 6:17 pm

The most common type of wet grinder is vertical, which means that the sides of the stone runs vertically and the horizontal circumference is used for grinding.

There are also horizontal grinders, which means that the stone runs horizontally and the upper side of the stone is used for grinding. Since the water cannot be lifted by the rotation of the stone, there is a water reservoir on top of the machine.

The horizontal wheel gives a truly flat bevel, while the vertical grindstones give the bevel a slightly hollow shape depending on the diameter of the wheel. The hollow shape is hardly noticeable and has no influence on the function of the tool, provided that you do not use a grindstone with a diameter which is too small. Please see next page.

A disadvantage with horizontal grinders is that the speed and the grinding effect vary with the distance from the centre of the stone. This causes more wear at the periphery than closer to the centre. It is also difficult to true the stone flat on a horizontal grinder while truing a vertical stone is easy.

Uses of Coal

Filed under: Uncategorized — sbmzhcn @ 10:20 am

Access to modern energy services not only contributes to economic growth and household incomes but also to the improved quality of life that comes with better education and health services. All sources of energy will be needed to meet future energy demand, including coal.

Coal has many important uses worldwide. The most significant uses are in electricity generation, steel production, cement manufacturing and as a liquid fuel. Around 5.9 billion tonnes of hard coal were used worldwide last year and 909 million tonnes of brown coal. Since 2000, global coal consumption has grown faster than any other fuel. The five largest coal users – China, USA, India, Japan and South Africa – account for 82% of total global coal use.

Different types of coal have different uses. Steam coal – also known as thermal coal – is mainly used in power generation. Coking coal – also known as metallurgical coal – is mainly used in steel production.

The biggest market for coal is Asia, which currently accounts for over 65% of global coal consumption; although China is responsible for a significant proportion of this. Many countries do not have natural energy resources sufficient to cover their energy needs, and therefore need to import energy to help meet their requirements. Japan, Chinese Taipei and Korea, for example, import significant quantities of steam coal for electricity generation and coking coal for steel production.

Other important users of coal include alumina refineries, paper manufacturers, and the chemical and pharmaceutical industries. Several chemical products can be produced from the by-products of coal. Refined coal tar is used in the manufacture of chemicals, such as creosote oil, naphthalene, phenol, and benzene. Ammonia gas recovered from coke ovens is used to manufacture ammonia salts, nitric acid and agricultural fertilisers. Thousands of different products have coal or coal by-products as components: soap, aspirins, solvents, dyes, plastics and fibres, such as rayon and nylon. Coal is also an essential ingredient in the production of specialist products:

  • Activated carbon – used in filters for water and air purification and in kidney dialysis machines.
  • Carbon fibre – an extremely strong but light weight reinforcement material used in construction, mountain bikes and tennis rackets.
  • Silicon metal – used to produce silicones and silanes, which are in turn used to make lubricants, water repellents, resins, cosmetics, hair shampoos and toothpastes.

July 26, 2012

Used Cedarapids Primary Jaw Crusher Plant

Filed under: Uncategorized — sbmzhcn @ 6:35 pm

CR 3054 Primary jaw crusher with newer deep tooth jaw plates
CR 52” x 17’ Vibrating Grizzly feeder with 6’ grizzly section, straight pan
Large capacity feeder hopper is in good condition and easily removable
Heavy duty Torspec variable frequency drive on 50 hp feeder motor w/ remote control on umbilical cord
Removable grizzly bypass chute allows use of cross conveyor
Upper and lower walkways with ladder to ground
200 hp, 1200 rpm quarry duty electric motor
Electrical switchgear in NEMA 12 enclosure, 50′ of cord, designed to run off plant
4-Axle Hutch sprung suspension with 51″axle spacing, good tires
Two hydraulic, 36″ stroke, landing jacks at kingpin end of plant w/ 24V power unit
Six cribbing points with manual screw jacks
Plant has been used in limestone and recycle concrete and is in excellent condition
Approximate shipping dimensions: 15′ tall, 50′ long, 10′- 6″ wide, 79,000 lbs. on quads
Built in 1999, s/n 46230

Currently On Rental

Lippmann-Milwaukee Portable 22×48 Primary Jaw crushing plant w/51”x20’ VGF, 22”x48” Jaw, 150 HP Electric Motor, Auto Lube System, Slide Off Hopper Module, ¾” Hardox Feed Hopper, 5’ Grizzly Section, Hydraulic Leveling Jacks with 8HP Gas Engine, Operators Platform, 40 HP Variable Speed Feeder Drive, Running Light Package, Tri Axle System, King Pin, Tire Bulk Heads and Steel Side Plating. P.O.R. RA179-08 One (1) Used Cedarapids 22” x 36” Portable Jaw Crusher Plant complete and including: Feed hopper approximately 7’ 6” wide by 18’ long, Cedarapids 35” x 17’ vibrating grizzly feeder with 4’ grizzly section, Cedarapids 22” x 36” jaw crusher with 100 HP, 1200 RPM, TEFC, electric motor, 36” discharge belt with return belt wiper, Electrical panels including soft start and required switch gear, Feed area side plating, Running gear protective plating, Factory truck frame including king pin and running lights, Tri-Axle with dual, 11×22.5, tires, Model year 1997 (S/N 44602). One owner. $139,750 RA219-11

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