2npg1414 double toothed roll crusher

reliable toothed roll crusher | fote machinery

Applied material: coal, pebble, perlite, limestone, dolomite, etc. Its outstanding features: high crushing capacity, hadraulic pressure used to adjust the distance between the rollers, and the centralization lubrication on the brearing.

The toothed roller crusher is generally used for the medium and fine crushing for brittle and medium-hard ores, and the size of the crushed product is usually not less than 20mm. Because of its simple structure, easy maintenance, and low price, it is popular to aggregate and coal ores suppliers.

A double toothed crusher with less volume is composed of two toothed rollers which is installed in parallel and rotates in opposite directions. The two-toothed rollers adopt non-meshing and non-constant speed operation to strengthen the degree of occlusion, which ideally prevents the material from slipping thus improving the crushing efficiency.

Generally speaking, materials are crushed in three stages in a double toothed roller crusher. The material enters the crushing chamber by the impact force of the deep tooth gear for the first crushing. The large-block material is cut by the teeth to complete the second crushing, and then being squeezed when they enter the toothed rollers to complete for the third crushing. Finally, the crushed material is discharged from the outlet with the rotation of the toothed roller.

1. The company makes further improvement in the aspects of feed particle size, rotor diameter, rotor channel, etc., so that this series of products can adjust the corresponding rotor structure and the corresponding speed according to different materials and feed grain levels to cooperate, and can achieve higher production volume and higher fineness modulus.

In recent years, with the transformation and upgrading of the coal industry, the requirements for coal development efficiency and environmental protection are increasing day by day. In the field of coal chemical industry, the requirements for product particle size are extremely strict, and generally the particle size is between 25 mm and 70 mm.

If the particle size is too large, the crusher chamber will be blocked, and downstream processing cannot be carried out. The toothed roll crusher is currently used in coal crushing because of its large processing capacity, low fine powder producing rate.

The crusher teeth are composed of big and small tooth phase interval, which can effectively improve the meshing capacity gear roller with the ensure of ideal particle size. Strong meshing capacity can improve the equipment processing capacity, reduce the tooth roller wear, prolong the tooth plate service life.

The connection between tooth plate and tooth roller base is made by screw fastening block, which not only guarantees the connection strength, but also has good interchangeability and replaceability.

Carbon bainite wear - resistant cast steel is used as the material of the tooth plate. The wear resistance of this material is about 40% higher than that of 40Cr surface-welded wear resistant layer. In addition, the whole tooth roller structure, including tooth plate, tooth roller seat, thread fastening block makes strength and hardness of each component more balanced and reasonable.

Besides, the motor is equipped with an electric heating system, and the hydraulic coupler and reducer are made of low temperature synthetic oil which ensures the transmission system smooth operation in the low temperature even with minus 30 .

The Indian customers coal mine adopts the single-bucket truck with semi-continuous mining process, and the raw coal has large grain size, gangue with great hardness. In the original production line, he firstly crushed the material to less than 300mm, then crushed them to less than 70mm by a ring hammer crusher. The crushed material with 70mm was transported to the coal storage bunker by conveyor belt for screening to final products of 25 ~ 70mm.

Technical improvement is urgently needed in order to reduce the operation cost and labor intensity of workers, and ensure the normal operation of the production system. So, the user finally chose Fote toothed roll crusher to replace the original ring hammer crusher.

After the double toothed roller crusher is put into use, the equipment runs stably, and the output particle size of the product has been improved obviously. The comparison shows that there is a 18.2% difference between the qualified products before and after the equipment replacement, which greatly increases the output of the qualified products and creates great economic benefits for the enterprise.

As a leading mining machinery manufacturer and exporter in China, we are always here to provide you with high quality products and better services. Welcome to contact us through one of the following ways or visit our company and factories.

Based on the high quality and complete after-sales service, our products have been exported to more than 120 countries and regions. Fote Machinery has been the choice of more than 200,000 customers.

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.

2npg1416 double toothed-roll crusher

DOUBLE ROLL SPECIFICATIONS Sectional drawing of Double Roll Crusher fitted with smooth rolls Capacities, dimensions and weights will vary with the characteristics of each individual material. The details contained within this leaflet are for information purposes

Let us discuss different types of single and double roll crushers available in market. Rock master crusher is suitable for breaking down hard material into small fine particles like rock or stone. Shale King Crushers are suitable for breaking down hard mineral materials like ROM coal, limestone, oil shale, and other feed materials of similar hardness.

When double roll crusher works, the raw material is fed in and fall into the V type crushing cavity between the two crushing rollers and crushed into qualified sizes by the extruding and cutting force of the two counter-rotating rollers, and then discharged from roller ...

toothed double roll crusher - Kswu Roller Crusher Double Toothed Roll Crusher Mining,US $ 1,000 - 999,999 / Set, New, Roller Crusher, 5-125t/h.Source from Shanghai Lipu Heavy Industry Co.,... Continue Reading

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toothed double roll crusher - Kswu Roller Crusher Double Toothed Roll Crusher Mining,US $ 1,000 - 999,999 / Set, New, Roller Crusher, 5-125t/h.Source from Shanghai Lipu Heavy Industry Co.,... Continue Reading

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Double toothed roll crusher 2PG1618 - tritls Products Made In China, China Manufacturer. First, an overview Bi toothed roll crusher in compressive strength is less than 240Mpa, humidity, less than 35% of the hard and soft materials is suitable for crushing and crushing operations, such as coal, coke, petroleum coke, lime, silica, carbon, glass tube, asphalt, chemical feedstock or with the hardness

Let us discuss different types of single and double roll crushers available in market. Rock master crusher is suitable for breaking down hard material into small fine particles like rock or stone. Shale King Crushers are suitable for breaking down hard mineral materials like ROM coal, limestone, oil shale, and other feed materials of similar hardness.

Alibaba offers 96 Double Toothed Roll Crusher Suppliers, and Double Toothed Roll Crusher Manufacturers, Distributors, Factories, Companies. There are 62 OEM, 56 ODM, 17 Self Patent. Find high quality Double Toothed Roll Crusher Suppliers on Alibaba.

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 ...

Manufacturer of Toothed Double Roll Crusher, Single Toggle Jaw Crusher & Hammer Crusher Machine offered by Mechtech Engineers from Vadodara, Gujarat, India We are the leading Manufacturer of Feeding, Crushing, Screening and Mineral Handling Equipment.

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Christmas special for mining machines,We have doubletoothed roll crushers,1 The double toothed roll crusher has a big reduction ratio without any requirements on moisture of tobecrushed materials and it has advantages of no adhesion or blocking large capacity ...

201938ensp0183enspthe toothed roll crusher can be divided into two big series, namely the double teeth roll crusher and fourtoothed roll crusher. the double teeth roll crusher is a mechanical spring type2pcm, which can equip coarse roll and medium roll according to ...

APPLICATION 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

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Toothed Double Roll Crushers are used for crushing of friable and brittle materials like Coal, Coke, Sinter (hot and cold), Clay, Earth, Slag, Chalk, Soft Limestone etc. Due to cutting action of the teeth, crushing of material takes place mostly due to shear and not by pressing.

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.

toothed roll crusher for coal preparation plant - ftm machinery

Toothed roll crusher is widely used in coal, metallurgy, mining, chemical industry, building materials, and other industries, and it is more suitable to crush coal in large coal preparation plant and process waste. Toothed roll crusher has a high crushing capacity. The distance between the rollers can be adjusted by hydraulic pressure. The bearing of the toothed roll crusher is centralization lubrication. Whats more, it has the advantages of optimal design, high efficiency, uniform grain, and low cost.

Protective device: The motor is connected with the retarder through hydraulic coupling to avoid dynamic overload. The sensor overload protection is very reliable. If you have mining project or chemical plant, the toothed roller crusher is prepared for you in China Fote.

The toothed roll crusher is suitable for crushing raw coal in coal mines, coal preparation plants and other industries (allowing less than 30% of coal gangue in raw coal). The crusher is also used to break other brittle materials whose hardness is similar to that of raw coal.

It has the characteristics of high efficiency, long life, full sealing, low noise, and uniform granularity. The double-toothed roll crusher is equipped with a scraper to keep the groove and working surface clean. For the toothed roll crusher, the outlet-size depends on the gap between the two rollers, the size of teeth, shape of teeth, and the number.

The double-toothed roll crusher is relatively small in volume. It consists of two tooth rolls that are mounted in parallel and rotate in opposite directions. According to the crushing capacity and the size of the discharging granularity, the two crushing rolls are uniformly filled with brushing teeth.

And the double-toothed roll crusher adopts the operation way of non-circular, non-intermesh and non-uniform, which can enhance the contact face of roller teeth, and avoid material slippage and improve crushing efficiency.

When the toothed roller rotates, the teeth on the surface of the roller can bite the materials and crush them. Each roller crusher of the crushing system is driven by a separate motor. The roller crusher is generally driven by a belt, and it constitutes the deceleration system along with the reducing mechanism.

FTM double-tooth roller crusher for sand making, limestone, rock, clay crushing has a good crushing effect on wet and sticky materials. And adherence or clogging phenomenon never occurs during the work.

The silicon-aluminum raw material is an indispensable calibration material in the dry cement production process. After the mining work, the materials need to be crushed, transported and stored. and then they are sent to the raw material mill for grinding according to an appropriate ratio.

However, the silico-alumina raw materials have strong water storage capacity and high plasticity index, especially for bauxite and marlstone with water content more than 17% and plasticity index generally above 15. Because of the viscosity of materials, it can lead to blockage and arching during the process of crushing, transportation and storage, thus affecting the normal operation of the system.

In order to solve the problem of adherence and clogging of wet-adhesive materials in the crushing stage, FTM toothed roll crusher is used to break the mixture of limestone and marl. In detail, firstly, the wet and dry materials are mixed and crushed, and secondly, the wet-adhesive materials and other limestone materials with lower moisture content are mixed into the crusher. And finally, they are crushed according to an appropriate ratio.

The toothed roller crusher machine has advantages of small volume, large crushing ratio, low noise, simple structure, convenient maintenance, high productivity, uniform particle size of crushed material, low crushing rate, convenient maintenance, sensitive overload protection, safe and reliable.

toothed double roll crusher at best price in mumbai maharashtra from anron chemicals co. | id:3471843

Bevcon toothed double roll crushers are equipped with two identical crushing rolls rotates towards each other. These crushers are ideal at different stages of crushing primarily envisaged to generate very less fines. Hence the crushing ratios are limited to 4 :1. Since both rolls rotate in same speed, there is no relative motion between roll surfaces. Material entered in crushing chamber is crushed between two crushing rolls. Crushing is accomplished purely by compressive action. In both the rolls one will be stationary and one is self adjustable.

laboratory-scale validation of a dem model of a toothed double-roll crusher and numerical studies - sciencedirect

A DEM model of a toothed double-roll crusher was established based on bonded particle model.Validation in terms of product size distribution was conducted for three groups of tests.The effects of rotation speed and structure of rolls on the crushing process were investigated.The breakage mechanism of the particle was discussed based on fracture dynamics.

A discrete element method (DEM) model of the crushing process of a toothed double-roll crusher (TDRC) is established using the bonded particle model. DEM results and experimental data are compared quantitatively and a relatively good agreement is observed. The effects of rotation speed and structure of crushing rolls on the performance of TDRC are investigated numerically. The results show that when the rolls' speed is relatively high, the nipping condition would be improved, and more cracks could be created to release the increasing strain energy, generating more fractions of small sizes in the products. But, when rolls' speed exceeds 150rpm, the crushing performance would not be significantly improved. A reasonable working gap and better nipping behaviour are obtained using the spiral-tooth-roll or the staggered-tooth-roll. The validated DEM model could be applied to gain a fundamental understanding of the crushing mechanisms of TDRC.

china crusher manufacturer, cone crusher, rock crusher supplier - atairac engineered products inc(china)

Crusher, Cone Crusher manufacturer / supplier in China, offering Cylinder Stone/Sand/ Aggregate Washing Machine (YTX1530), High Efficiency Spring Cone Crusher Granite, European Type Vibrating Feeder Machinery (ZSW490*110) and so on.

ATAIRAC China is the top3 of mining equipment in China. Our products include feeder, jaw crusher, impact crusher, cone crusher, sand making machine, vibrating screen, sand washing machine, spiral classifier, fine sand recycling device, belt conveyor and other mineral production line assistant equipments. The company has a professional technical team, reliable production and processing equipment, efficient service construction team. Based on understanding customer needs, we are committed to solving ...

mini beneficiation machine secondary double tooth roll crusher for coke making plant 2020 top brand portable mobile cone crusher plant

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.

Apr 29, 2021 The double-toothed roll crusher is relatively small in volume. It consists of two tooth rolls that are mounted in parallel and rotate in opposite directions. According to the crushing capacity and the size of the discharging granularity, the two crushing rolls are uniformly filled with brushing teeth.

Alibaba.com offers 2,175 roller crushers mini products. A wide variety of roller crushers mini options are available to you, such as warranty of core components, local service location, and key selling points.

About product and suppliers: 3,349 double roll crushers products are offered for sale by suppliers on Alibaba.com, of which crusher accounts for 44%, plastic crushing machines accounts for 2%, and tire shredders accounts for 1%.

A wide variety of double toothed roll crusher options are available to you, such as 1 year, 2 years and 3 years.You can also choose from brazil, double toothed roll crusher,As well as from easy to operate, competitive price, and long service life.

Double Roll Crushers. Double Roll Crushers typically follow a primary or secondary crusher and are used for secondary and tertiary reduction of various minerals, such as ROM coal, clean coal, limestone, gypsum, trona, shale, bauxite, oil shale, coke, salt, lime, glass, kaolin, brick, shale and wet, sticky feeds.

3,302 double rolls crusher products are offered for sale by suppliers on Alibaba.com, of which crusher accounts for 43%, plastic crushing machines accounts for 2%, and tire shredders accounts for 1%. A wide variety of double rolls crusher options are available to you, such as 1 year, 6 months, and 2 years.

china shaking table manufacturer, spiral concentrator, centrifugal gold concentrator supplier - jiangxi victor international mining equipment co., ltd

Shaking Table, Spiral Concentrator, Centrifugal Gold Concentrator manufacturer / supplier in China, offering Xkj1545 Rotary Trommel Scrubber for Clay Alluvial Gold Diamond Mining, Gold Trommel Wash Plant in Ghana, Vibrating Table for Gold in Mining Field and so on.

Jiangxi Victor International Mining Equipment Co., Ltd. is a large mineral processing manufacturer which is specialized in designing, producing, installing and debugging as well as providing processing line design and course training of mineral processing. Presently our company is a large manufacturer in China, with covering an area of 48, 000 square meters and 20, 000 square meters for workshop, with various large modernized machinery facilities, professional R&D team and installation team. With ...

double-toothed roller crushers for difficult materials

In recent year, mainly as a result of environmental problems, the raw material crushing sector has often had to use quarries in which the materials are imperfect or mixed with soil. This has made work difficult to traditional crushers, such as impact or jaw crushers, because they are often required to process materials for which they have not been designed.

Bedeschi machines have been installed in difficult location worldwide. The company promotes the spread and development of double-toothed roller crushers, which are employed in many different fields: cement plants, mining firms, brick and tile factories and company specialized in waste processing scrap material. They are basically very simply machines; they consist of two toothed rollers turning in opposite directions and the material to be crushed is made pass between them. The material is not crushed through compression but through a combination of shear and tensile stresses.

The processing system of the double-toothed roller crusher makes it possible to crush any type of raw material from hard (limestone and rock) to soft (clay, soil and mud) or even elastic-like wood or rubber tyres. The rotation speed, especially if compared to traditional crushers, is very low; so low, in fact, that tip speed is under 3 m/s.

These crushers have turned out to be particularly effective in situations where other crushers experience problems. They are ideal for processing wet, sticky materials, and blocks of hard material mixed with soil, in addition to crushing ordinary hard materials. Under these conditions, traditional crushers clog. Double-toothed roller crushers are equipped with scrapers, which keep the grooves and the work surface perfectly clean.

These crushers are invaluable for crushing clay, soil and sticky materials containing up to 30 % moisture content or rocks covered with a layer of soil, a situation that, as mentioned earlier, is often encountered due to environmental restrictions imposed on quarries. The majority of cement plants set up in the 1990s in the Far East where, because of the frequent rain, raw materials are very moist, are equipped with clay crushing systems with double roller crushers; most of them supplied by Bedeschi. These machines allow a maximum reduction ratio of ten at each crushing stage.

They can act as primary or secondary crushers and can be installed to suit any required arrangement, even one on top of the other, with the primary crusher discharging directly onto the secondary crusher.

The gap is adjusted in the factory according to project requirements but can be easily changed after the machine has been put into service, to improve or change crushing parameters. The roller gap of Bedeschi crushers can easily be adjusted to individual preferences.

The study and dimensioning of teeth is particularly important. Bedeschi technical staff, thanks to their calculation models defined over many years of experience, establish the characteristics and shapes that most suit the material to be crushed and the customers outlet size requirements. The most important and qualifying tooth characteristics are:

These crushers, due to their special crushing method, are characterized by their relatively low power consumption compared to traditional crushers. Many applications and tests confirm an average power absorption of 0.3 to 0.4 kWh/t.

Their special design, featuring an external reduction unit, allows compact sized machines to be made, which can be installed where space is at a premium; installations in tunnels are a particularly significant example.

Alfa Laval, irontrybex - stock.adobe.com; Nitta Corporation of Holland; ANDRITZ AG; Picture: Bedeschi; Namur; Brkert Fluid Control Systems; Profibus Nutzerorganisation; Ecoclean; BASF ; MOL Group ; malp - stock.adobe.com; Sinopec ; IFG Asota; Feige Filling; Emerson; Goodvibes Photo - stock.adobe.com; Gea; Steriline; Ima; Achema Pulse; WMFTG; Thordon Bearings; Leybold ; Pixabay; Ldige; Solvay; Siemens; Siemens Energy; Siemens Energy

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Double toothed roll crusher with high qualityIntroduction Overview2PGC double tooth roll crusher is double roll type, roller surface shape is coarse tooth roller, tooth roller suitable for brittle and soft material coarse, medium broken. The product with high efficiency, energy saving, environmental protection and other advantages become the preferred equipment to replace imported thermal power plant crushing equipment.The double tooth roller crusher mainly uses the special wear-resisting tooth roller high speed revolving to split the material to break, has formed the high productivity mechanism.Has the advantages of small volume, high crushing ratio, low noise, simple structure, convenient maintenance, high productivity, broken material granularity, crushing rate, convenient maintenance, overload protection, sensitive, safe and reliable.ApplicationDouble teeth roll crusher for ore, coal, cement, silicate, glass, ceramics and other industries, is suitable for crushing medium hardness following brittle materials, mainly used for ore crushing operations.Advantages1.Crushing ratio of large, broken material moisture without any requirements.2.Equipped with hydraulic automatic retraction device, can effectively prevent the material on the toothed roller damage.3.Equipped with intelligent cleaning device, can automatically remove the crusher cavity wall adhesion material.4.The use of mechanical, electrical, hydraulic and other multiple protection devices and chain devices to prevent power overload, safe and reliable.5.Tooth roller spacing adopts hydraulic adjustment, tooth roller bearing centralized lubrication.6.Toothed design optimization, high efficiency and low consumption,a uniform particle.7.Power consumption is one-half of hammer crusher, energy saving.8.Through the control of the particle size and adjust roller gap,to change the output.9.Our company can design and product according to the hardness of the material,t he parameters of roller press are designed by testing the material bearing capacity.Installation and commissioning1) to strengthen the mining of iron removal work. Non-crushed material (drill head and other objects) fall into the roll will damage the roller crusher, resulting in a parking accident. So in the roller crusher should be installed before the iron removal device, hammer counter-break.2) sticky material is easy to plug the crushing space, in the process of blocking the fault should be parking, not in the operation of poking mine.3) When dealing with the material containing large chunks, it should be noted that large pieces of ore easily squeezed out from the broken space to prevent wounding or damage to equipment.4) roller crusher running for a long time, due to the large wear on the roll surface, will cause the product size is too small, then pay attention to adjust the discharge port or equipment maintenance.5) to strengthen the inspection of the equipment, the lubrication of the equipment on time to refuel, to maintain good lubrication equipment.MaintainTooth roller crusher work to pay attention to the following points:1, in addition to the crusher installed in addition to the mine to remove the iron device. When the non-crushed material (drill bit and other objects) into the roller between the crushing machine will cause damage, resulting in parking accidents.2, some sticky material will clog the crushing chamber, in the crushing chamber to clean up when the first stop and then clear.3, tooth roller crusher in the processing of large pieces of material, to prevent large pieces of material from the crushing chamber to fly out to damage the equipment or hurt others.4, in the tooth roller crusher work for a long time, the roller surface wear and tear, which will cause the material size is too small, so pay attention to adjust the discharge port or equipment maintenance.5, to fully after the work of the tooth roller crusher to check, to strengthen the lubrication of parts and fasteners fastening work.Technical parameter tableModelRoller diameter(mm)Roller length(mm)Maximum feed size(mm)Discharge size(mm)capacity (t/h)Power(KW)Wight(kg)size2pgc40025040025080-10010-505-205.52130024009506502pgc400400400400180-26010-5015-307.521800240012506502pgc450500450500200-50015-10030-607.523800266019008262pgc600750600750300-60020-12060-10011272002780306513102pgc600900600900300-60030-15080-12018.5278004500190013502pgc80010508001050500-80030-150100-160222126002550205011002pgc900900900900600-90030-200150-200222135002780410015502pgc10157601015760700-95030-200150-200452188007800320019802pgc1200 0800-105030-200200-30055252000801045002050

2PGC double tooth roll crusher is double roll type, roller surface shape is coarse tooth roller, tooth roller suitable for brittle and soft material coarse, medium broken. The product with high efficiency, energy saving, environmental protection and other advantages become the preferred equipment to replace imported thermal power plant crushing equipment.

Has the advantages of small volume, high crushing ratio, low noise, simple structure, convenient maintenance, high productivity, broken material granularity, crushing rate, convenient maintenance, overload protection, sensitive, safe and reliable.

Double teeth roll crusher for ore, coal, cement, silicate, glass, ceramics and other industries, is suitable for crushing medium hardness following brittle materials, mainly used for ore crushing operations.

1) to strengthen the mining of iron removal work. Non-crushed material (drill head and other objects) fall into the roll will damage the roller crusher, resulting in a parking accident. So in the roller crusher should be installed before the iron removal device, hammer counter-break.

4) roller crusher running for a long time, due to the large wear on the roll surface, will cause the product size is too small, then pay attention to adjust the discharge port or equipment maintenance.

1, in addition to the crusher installed in addition to the mine to remove the iron device. When the non-crushed material (drill bit and other objects) into the roller between the crushing machine will cause damage, resulting in parking accidents.

4, in the tooth roller crusher work for a long time, the roller surface wear and tear, which will cause the material size is too small, so pay attention to adjust the discharge port or equipment maintenance.