kolkata efficient small mineral toothed roll crusher

toothed double roll crusher by fote heavy machinery, toothed double roll crusher | id - 1002756

toothed double roll crusher by fote heavy machinery, toothed double roll crusher | id - 1002756

Teethed double roll crusher overview: Teethed double roll crusher is equipped with smart-clearing device, which can automatically remove adherent material on the crusher chamber wall. Feeding size: 200-1050(mm) Production capacity: 46-300(th) Material: pebble, calcite, granite, quartz, concrete, dolomite, bluestone, iron ore, limestone, iron ore, coal gangue, construction waste, ferrosilicon, basalt, sandstone, rocks, ore, glass, cement clinker and some metal. Teethed double roll crusher features: 1. The teethed double roll crusher has a big reduction ratio, without any requirements on moisture of to-be-crushed materials, 2. Teethed double roll crusher is with no adhesion or blocking, large capacity, low noise, little vibration, less dust, low energy consumption, small footprint, simple and convenient maintenance and so on. 3. Teethed double roll crusher is equipped with hydraulic automatic subordination device, can effectively prevent damage on roll. 4. Teethed double roll crusher is equipped with smart-clearing device, which can automatically remove adherent material on the crusher chamber wall. Teethed double roll crusher technical data: Models: 2PGC600500, 2PGC900900, etc. Price: 2000~20000 USDset. Capacity: 46~300 th. Power: 23~110 kw. Weight: 5500~52000 kg. Payment terms: 1. We usually accept TT, LC, DA, DP 2. We take pictures of finished products before delivery. Ways of packing: 1.Sand blasting, coat with high quality paint. 2.In bulk or in containers 3.Bare main machine, motor and small parts are in wooden cases Delivery 1.Ocean freight partners are: APL, COSCO, OOCL, CSCL, MSC, etc. And train shipping is also available. 2.We will remind you before boat arrival

double roll crusher (smooth roll, corrugated roll profile) | sur iron & steel co (p) ltd

double roll crusher (smooth roll, corrugated roll profile) | sur iron & steel co (p) ltd

The Roll Crusher usually saves head-room and weight, compact in structure and economical in first cost. lt is capable of large output AT SMALL RATIOS OF REDUCTION. For these reasons, the roll crusher lends itself to portable use or for fine crushing where ratio of reduction does not exceed 3 to 1. Corrugated rolls of different pitch and depth are used for greater RATIO OF REDUCTION and can take BIGGER FEED SIZE.

The double roll type of crusher pinches the aggregate only once. To avoid excessive wear upon the roll tyres, it is important that the pinch should be immediate, positive and without slippage. Consequently, larger feed sizes should be avoided, and the ratio of reduction should be kept within the 3 to 1 limit. Any attempt to exceed the permissible ratio of reduction c causes slippage which leads to increased wear upon the tyres, excessive spring action, oversize product and undue unkeep expense. Refer to table on back page for capacities and maximum size of feed recommended. SISCO CD-Series Roll Crushers successfully Crushes Aggregates, Limestone, lron Ore, Dolomite Coal etc.

SISCO Double Roll Crusher is a very substantially built machine. The longitudinal frame members are heavy steel joist reinforced with extra supports under each bearing cage and at the end. Cross- members are also heavy steel joist which form a rectangular main frame of exceptional strength and rigidity. Two heavy roll units, one fixed and one movable are mounted on this frame.

Each roll unit consists of a replaceable manganese steel roll shell, ground V-shaped on the inner periphery. This is mounted on a set of expanding conical rings, which function together as co-acting wedges. These are pulled together by heavy bolts so as to grip manganese shell firmly between them. Both the hubs of co-acting wedges are keyed to a heavy alloy steel shaft mounted on heavy duty self- aligning spherical double row roller bearing. The fixed roll drives the movable roll through a set of star gears. The heavy duty rollers haft bearings are enclosed in a steel bearing housing. The housing for the fixed rolls haft is bolted to the main crusher frame with the housing cage. Movable Rolls haft bearing housing along with slides are fitted in between the slide plates of the main frame and the top slide plates. Slides fitted with each bearing housing are fastened with high tensile counter shanked screws. The movable roll shaft bearing housing is floating and is placed between the gap adjusting shims on one side and spring assembly on the other side. These heavy duty springs assembled with high tensile studs absorb unwanted shocks and thus saves the equipment from damage. This also allows the passage of uncrushable material. Shims between top plate mounting stand and the movable shaft bearing housing fix the distance between rolls and thus determine the discharge opening

The movable roll assembly is supported by set bolt buffer plates stands and bolts. The other side of the movable roll assembly has provision for inserting adjusting shims. Once these set bolts are released then the adjusting shims can be either added or subtracted. Addition or subtraction of adjusting shims decreases or increases the gap between the rolls. Once the gap is fixed then theses set bolts are once again tightened.

The movable roll shaft is driven by the fixed roll shaft by extra heavy steel star-gears. The teeth are of sufficient length to give a wide range of discharge openings. These gears are enclosed in a dust and grease tight steel housing and run in grease.

The drive is given by any power source coupled with the flywheel of the equipment through V-belt or flat belt. An alloy steel driving gear is fitted on the above shaft. This drives a cast steel gear fitted on the fixed roll shaft. Both gears have machine cut helical teeth which provides excellent drive efficiency. These gears are enclosed in a dust and grease tight steel housing and run in grease

The capacities given are in tons per hour based on crushing granite weighing loose about 1.67 tons/Cubic metre. Capacities given are based on 2 metre per second peripheral speed of the roll shells. Wet, sticky feeds tend to reduce capacities, especially at close settings.

All feed must be down to maximum size specified in at least one dimension. No crusher, when set at any given discharge opening or spacing between rolls, will make a product all of which will pass a screen opening of the same dimensions as the given discharge opening. The amount of oversize will vary with the character of the rock. For close settings, all undersize materials should be removed from the feed.

double roll & teethed roll crusher

double roll & teethed roll crusher

Although its brief period of popularity passed some thirty-odd years since, and only a few sets were installed before interest reverted to other types, the high-speed double roll crusher developed by Thomas A. Edison shortly before the end of the last century warrants a place in any discussion-of crushing equipment. In 1960, the largest machine of this type the 6 x 7 foot giant rolls were huge crushers, judged even by present-day standards; they have an unobstructed receiving opening 7 x 7 foot and their capacity on individual skip-loads of stone is enormous, although, as will be explained, they cannot maintain this peak capacity over a period of time.

Mechanically, the teethed roll crusher is a very simple machine. The two rolls are carried in bearings, supported on two very heavy and rigid bed castings which are secured on the concrete foundation by a number of large anchor bolts. The bearings, in addition to being bolted to these bed castings, are prevented from spreading by pairs of large tie-rods which pass through them above and below the roll shafts. Unlike the smooth-face crushing rolls we have described, these tension rods are not cushioned by springs. The machine is surmounted by a heavy cast rectangular hopper, all sides of which are vertical. Each roll is independently driven by a flat-belt pulley.

The roll-centres are octagonal in cross section, each face being provided with a spline groove and a series of tapped holes for securing the chilled- iron wearing plates. These wearing plates have the sledging knobs, or teeth, cast on their outer surfaces. Thus we have a roll surface that resembles that of the one rollcrusher, except that the faces of all teeth are sloped instead of radial on the advance side. The usual practice is to fit one roll entirely with so-called regular teeth, and the other roll with six rows of regulars and two rows of higher (slugger) teeth.

The peripheral speed, or tip-velocity, of these rolls is much higher than that of any of the machines we have previously described. The range of the smooth-face rolls, for example, is from about 400 ft/min for the small 12-in. rolls, to 2000-2200 feet/minute for the heavy-duty 72 machine. The single-roll crusher has a tip speed of 400-450 ft/min while the 6- x 7-ft teethed roll crusherhas a normal, no-load, surfaces speed of just under 3500 ft/min. It can be readily appreciated that this high velocity induces an extremely violent crushing action, in conjunction with the 3- to 4-in. knobs which protrude from the roll surfaces. Impact, sledging, and pressure crushing enter into the over-all performance; but impact, in this crusher, plays a far more important role than it does in the slower speed single-roll machine; and crushing, even well down along the roll faces, is more in the nature of a sledging action than it is of pressure crushing, for this action occurs in the lower-velocity crushers.

The theoretical maximum size of cube that the knobs will grip, when the rolls are set at minimum spacing, is 24; but the rolls will reduce any stone that can be introduced into the 7-ft square hopper. Large blocks will span across the tops of the two rolls; immediately the slugger teeth on the one roll so equipped go to work on these blocks and quickly shatter them into pieces that can be gripped between the sets of regular teeth; from this point on, the action is a mixture of sledging and pressure crushing. The same selective segregations which we described in connection with the single-roll machine occur in the double-roll crusher; the smaller pieces are cleared quickly, leaving the roils free to work on the larger blocks.

The entire performance on individual skip-loads of stone takes place in a very short period of time. Ten- ton loads of mixed-size medium limestone will clear the crusher in from 10 to 15 sec.; large single blocks, weighing from 6 to 8 tons, are crushed in from 5 to 20 seconds, depending upon the toughness of the individual piece, and upon the way it happens to land in the crushing chamber. These performances were clocked on ma-chines turning out a 6 product.

The short-time transfer of energy, especially when crushing large blocks, is very high; so high in fact that it would not be economically feasible to provide sufficient motive power to deliver it. The usual practice, when these rolls are driven electrically, is to drive the slugger roll with a 250 HP motor, and the regular roll with 200HP,a total of 450 HP. As compared to this motive power, instantaneous energy delivery may run as high as 4000 HP, obviously far beyond the capacity of the motive equipment. But the rolls themselves, when running at normal no-load speed, have a stored kinetic energy of upwards of 4,000,000 ft -lb , and it is this stored energy that does much of the actual crushing, the motors serving to bring the rolls back to normal speed between crushing periods. In crushing a skip-load of stone the rolls may lose anywhere from 30 to 60 RPMin speed; this loss occurs partly through slowing down of the motive equipment, and partly through belt slippage. It requires from 5 to 10 sec. to bring the machine back to speed, during which time the power input will vary from 400 to 600 HP. The power required to run the rolls empty is something less than 100 hp. The average power consumption, when crushing from 3000 to 4000 tons per 10 hour day will run in the neighbourhood of 150 HP on medium limestone.

While the average power consumption of this machine compares favorably with that of other types, the rather violent fluctuation outlined and the relatively high connected horsepower are unfavourable features. It is also natural to expect that the belt slippage we have noted would constitute something of a problem over a period of time. Performance records indicate that belt trouble accounts for about 50% of the total lost time on a set of these rolls, and about 25% of the total maintenance expense.

The type of quarry equipment most commonly used in conjunction with this crusher is the three-sided steel skip, carried on a flat-top truck or flat car. These skips are provided with a shackle on the rear end, which is engaged by a hook actuated by a small hoist. This apparatus slides the skip over against the lip of the receiving hopper, and tilts it to discharge its contents. The skips discharge over a feed-roll which retards the flow of material so that the entire load does not drop into the crushing chamber at once. When the skip is empty it is pulled back on to the truck or car by a counterweight attached to the opposite end of the same cable which performs the hoisting operation.

We have mentioned the heavily ribbed hopper which surmounts the frame and extends up to the level of the feed roll. This hopper serves the double purpose of directing the material into the crushing zone, and preventing stones thrown by the slugger teeth from flying out of the crusher. It is also necessary to cover the top of the hopper with heavy netting to contain flying spalls.The straight-sided, rectangular hopper construction, and the violent agitation in the crushing chamber, tend to minimize blocking and bridging in this crusher. When bridges do occur they are difficult and dangerous to break while the rolls are running.

Practically all that we have had to say about the application of the single-roll crusher will apply as well to the Edison toothed roll crusher. It is better adapted to handling blocky stone than is the single-roll machine, because itsslugging action is much more vigorous, and it will handle any material that will not build up on the sides of the vertical hopper. It is not as simple a machine to feed as the single roll crusher, because its narrow hopper necessitates the uses of skips, or very short-bodied cars. A heavy- duty apron feeder would of course solve this problem, but so far as we know, none of these crushers were so equipped. The high peak capacity of the crusher constitutes something of a problem in plants of medium capacity. It is not economically feasible to provide elevating or conveying equipment to handle peak loads of around 4000 TPH in a plant designed to turn out that much stone in an 8 or 10 hr day; consequently means must be provided to smooth out these high surge loads. This can be taken care of by a surge bin and feeder below the crusher, or by passing the roll product direct to a secondary crusher of uniform-capacity characteristic. A feeder ahead of the rolls would smooth out peaks on mixed feed but. once a 10 or 12 ton block of stone is dropped into the crusher, that quantity comes through very quickly as crushed stone, which would render the regulating properties of the feeder of questionable value.Modified forms of this crusher were used by Edison for secondary and tertiary stages. The crushing equipment in one large plant, for example, comprised a set of 6- x 7-ft rolls (8 product), a set of 4 x 4 feet secondary rolls (3.5 product), and a set of 4 x 3 ft tertiary rolls (1.5 product), these last rolls being in closed circuit. These smaller machines were also run at high speeds, their surface velocities being slightly over 3000 ft/min.

high efficiency double roller crusher for coal slag line - best stone crusher plant solution from henan dewo

high efficiency double roller crusher for coal slag line - best stone crusher plant solution from henan dewo

Dewo machinery can provides complete set of crushing and screening line, including Hydraulic Cone Crusher, Jaw Crusher, Impact Crusher, Vertical Shaft Impact Crusher (Sand Making Machine), fixed and movable rock crushing line, but also provides turnkey project for cement production line, ore beneficiation production line and drying production line. Dewo Machinery can provide high quality products, as well as customized optimized technical proposal and one station after- sales service.

Whats the double roller crusher The Doule Roller Crusher, also known as roll crusher, toothed roll crusher, is suitable for fine crush the medium hardness rock with compressive strength 160MPa, such as ore, rock, coke, coal, clinker, ceramic raw materials, slag, refractory materials, and chemical materials.

Teeth roller coal crusher principle is: the fuel enter from up, and discharge directly from bottom outlet, without secondary crushing. To achieve the crushing purpose through crushing and screening by snap action between teeth, the grain evenly, over powder rate is very low, and its broken particle size can be quickly adjusted by the screw, to fully meet the requirements of coal-fired ...

The Best Small Size Double Roll Crushers With High Efficiency , Find Complete Details about The Best Small Size Double Roll Crushers With High Efficiency,Small Size Double Roll Crushers,Double Teeth Roll Crusher,Roll Mill Crusher from Crusher Supplier or Manufacturer-Henan Yuhong Heavy Machinery Co., Ltd.

Crusher, Double Toothed Roll Crusher, Roll Crusher manufacturer / supplier in China, offering 2pgc Double Toothed Roll Crusher for Cement, Coal (2PGC900X900), Large Capacity Steel Slag Cone Crusher for Iron Ore, Newest Technology Cone Crusher Stone Crusher Price and so on.

Alibaba.com offers 1,052 high efficiency roll crushers products. A wide variety of high efficiency roll crushers options are available to you, such as warranty of core components, local service location, and key selling points.

Double roller crusher is a new type crusher absorbing foreign advanced technology to be developed on the basis of China's national conditions. It is mainly used for crushing coke, also suitable for crushing coal and other materials with similar hardness.

Double Stage Crusher - Fodamon Machinery. Application range of double stage crusher. Double stage crusher is suitable for crushing calcite, limestone, coal slag,furnace slag,ore slag in the brick plant, construction wastes,shale,coal gangue,and so on, thus solving the problems of crushing high-humidity materials such as gangue and coal cinder which are often used as additive materials and fuel ...

Coal Crusher Types Impact amp Double Roller Crusher. Coal crusher, also known as double stage crusher, is a highly efficient crushing equipment it is a new type of equipment developed for the coal industry, and it mainly crushes high moisture coal besides, it is mainly used to crush coal cinder, slag, shale, coal gangue and other materials

roll crusher - laboratory roll crusher latest price, manufacturers & suppliers

roll crusher - laboratory roll crusher latest price, manufacturers & suppliers

GIDC Vatwa, Ahmedabad Plot No. 291/2, Pancharatna Estate, Opposite Shayona Industrial Estate, Near Ramol Cross Road Near Ramol Over Bridge, Phase 4, G. I. D. C., Vatva, GIDC Vatwa, Ahmedabad - 382445, Dist. Ahmedabad, Gujarat

double roll crusher toothed roll crusher for soft wet materials line - best stone crusher plant solution from henan dewo

double roll crusher toothed roll crusher for soft wet materials line - best stone crusher plant solution from henan dewo

Dewo machinery can provides complete set of crushing and screening line, including Hydraulic Cone Crusher, Jaw Crusher, Impact Crusher, Vertical Shaft Impact Crusher (Sand Making Machine), fixed and movable rock crushing line, but also provides turnkey project for cement production line, ore beneficiation production line and drying production line. Dewo Machinery can provide high quality products, as well as customized optimized technical proposal and one station after- sales service.

The output opening is adjusted from the jaw part using skim rods. Single-roll and jaw have restricted applications than double roll crushers. In the case of toothed rolls, they called Tooth rotor crushers. They are dual (or triple) rotor aircraft equipped with various sharp organs, are used for soft or sticky materials.

Roll crusher is also called double roll crusher, double teeth roll crusher etc. The surface of roller crusher are made of high manganese steel, which can stand up to heat treatment. Double roller crusher is suitable for rough and intermediate crushing of brittle materials in such industries as cement, chemical industry, electric power, mine ...

Roll crusher, also called roller crusher, is a classical crushing machine with simple structure and less over crushing phenomenon. It can perform medium and fine crushing on medium-hard and soft ores. Roller crusher can be divided into double roll crusher, teeth roller crusher, four roller crusher, etc.

Alibaba.com offers 1,971 wet material crusher products. About 45% of these are Crusher, 27% are Grinding Equipment, and 0% are Mining Machinery Parts. A wide variety of wet material crusher options are available to you, such as condition, local service location, and applicable industries.

Double Roll Crusher McNally Sayaji. Toothed Double Roll Crusher is used for Secondary and Tertiary Crushing of soft to medium hard material like lignite coal fertilizer gypsum chalk clay limestone coke sinter etc OPERATING PRINCIPLE Due to inward opposite rotation of the rolls the feed material is nipped between the rolls and crushed by ...

double toothed roll crusher. 2019-3-8 The toothed roll crusher can be divided into two big series, namely the double teeth roll crusher and four-toothed roll crusher. The double teeth roll crusher is a mechanical spring type(2PCM), which can equip coarse roll and medium roll according to the characteristics and requirements of crushing materials.

crusher roll rolls machine shaft Prior art date 1957-04-12 Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.) Expired - Lifetime Application number US652434A Inventor Ronald L Fye

Double Stage Four Roll Aggregate Crusher Algeria Coal Mining Office. Bedeschi double roller bauxite jaw crusher double roll crusher alogue Oct 23 2012 Double Roll Crusher Catalogue Pdf Second Hand Hydraulic Cone Crusher For Sale In double roll crusher alogue pdf Bedeschi Double Stage Roller Crusher Catalogue 83 Iron ore double roll crusher is a mining crushing device that is professionally ...

roll crushers | mclanahan

roll crushers | mclanahan

Roll Crushers are designed to handle the primary, secondary and tertiary stage crushing of friable materials such as coal, salt, clay, bauxite, limestone and other minerals of similar characteristics in the mining, power generation and numerous other industries. Roll Crushers are one of the most widely used crushers in the mining industry and have numerous advantages, such as high capacity, low headroom, low horsepower, the ability to handle wet, sticky feeds and the generation of minimum fines while producing a cubical product.

The simplified design gives these units excellent reliability and requires very little maintenance. Roll Crushers are designed with built-in tramp relief that allows for the passing of uncrushable materials while continuing operation and returning to the initial product setting.

Since patenting the first Single Roll Crusher in 1894, McLanahan has become an expert and leader in the industry in the design and manufacture of single and two stage Roll Crushers. The selection process for each application is based on extensive equipment knowledge and a wealth of test data developed in our research lab or through on-site testing.

McLanahan offers belt-driven Roll Crushers in four designs: Single Roll, Double Roll, Triple Roll and Quad Roll Crushers, which provide a substantial return on investment by operating at low cost and maximizing yield by generating minimal fines. The rugged design, which incorporates a fabricated steel base frame lined with replaceable abrasion-resistant steel liners, stands up to the toughest mineral processing applications while providing safe and simple operation, including an automatic tramp relief system to allow uncrushable objects to pass while the crusher remains in operation. These crushers are also versatile, allowing for adjustments in roll speeds and gap settings to meet most any application requirement.

Whether the application requires a single-stage or two-stage crusher, the forces necessary to perform the crushing remain the same: a combination of impact, shear and compression. The impact force occurs as the material enters the crusher and is impacted by the rotating roll. Shear and compression forces occur as the feed material is pulled between the crushing plate and/or crushing rolls.

Depending on the feed size, material is fed into the crushing chamber and encounters a single or a pair of rotating rolls. If a two-stage reduction is required, either a Triple or Quad Roll configuration can be used. In this scenario, the top stage of the crusher performs the primary reduction either by crushing the material between the roll and crushing plate or between a pair of rolls. The material is then fed directly between the two bottom-stage rolls for additional processing.

If a single-stage reduction is required, then depending on the feed-to-product-size ratio of reduction, either a Single or Double Roll Crusher can be selected. Regardless of the crusher type selected, Roll Crushers allow for the material to fracture along naturally occurring cleavage lines, which helps with minimizing fines generation.

Yes, it will. When a wet, sticky feed is fed to a two-stage crusher, you run the risk of plugging the crusher between the top and bottom stages. If a wet, sticky feed is anticipated and the ratio of reduction requires two stages of crushing, it is recommended that two separate single stages be used.

A good rule of thumb is: Single Roll Crushers have a 6:1 ratio of reduction, Double Roll Crushers have a 4:1, Triple Roll Crushers have a 6:1 on the top stage and a 4:1 on the bottom stage, and Quad Roll Crushers have a 4:1 on both the top and bottom stage.

Single Roll Crushers are typically used as primary crushers that provide a crushing ratio of up to 6:1. They crush materials such as ROM coal, mine refuse, shale, slate, gypsum, bauxite, salt, soft shale, etc., while producing minimal fines. Designed with intermeshing roll teeth and a curved crushing plate, they are extremely effective in reducing slabby feeds.

Double Roll Crushers provide a 4:1 reduction ratio. They are typically used as a secondary or tertiary crusher for materials such as ROM coal with refuse, limestone, gypsum, trona, shale, bauxite, oil shale, clean coal, coke, salt, quicklime, burnt lime, glass, kaolin, brick, shale and wet, sticky feeds. Each machine is custom engineered with roll elements and tooth patterns selected depending on theapplication requirements to produce a cubical product with minimal fines.

Triple Roll Crushers are ideal for producers who want to accomplish two stages of reduction in one pass. They can be used in coal, salt, coke, glass, and trona operations, among others. Triple Roll Crushers combine a Single Roll Crusher with a Double Roll Crusher to form a crusher that is capable of achieving a 6:1 reduction ratio in the primary stage and a 4:1 reduction in the secondary stage while producing a cubicle product at high capacity.

Quad Roll Crushers are ideal for producers, including those with preparation plants, who want to accomplish two stages of reduction in one pass. They can be used in coal, salt, lime, pet coke and potash operations, among others. Quad Roll Crushers are capable of achieving a 4:1 reduction ratio before feeding the crushed material to the secondary stage for an additional 4:1 reduction to make the final product.

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