roll crusher,roller crusher,double roll crusher,teeth roll crusher - hxjq mining machine manufacturer

roll crusher,roller crusher,double roll crusher,teeth roll crusher - hxjq mining machine manufacturer

Roll crusher, also known as roller crusher, belongs to traditional crushing equipment. It is mainly used for fine processing of material particles. As the main working part, the two cylindrical rollers rotate oppositely to achieve the purpose of crushing. Due to its peculiar tooth crushing structure, it is also called Teeth Roll Crusher.

The commonly seen roller crusher falls into three types: single roll crusher, double roll crusher and four roll crusher. In the working process, material falls in between the two rollers, and will be crushed. Normally, the material will be discharged from the bottom.

When encountering material with high hardness, the rollers will automatically concede by hydraulic cylinder or spring which will increase the space between the two rollers, resulting in the falling of material with high hardness and uncrushable material, to protect the machine from damage. Changing the space between the two rollers can definitely control the maximum particle size of discharged material.

The double roll crusher can be applied in industrial sectors, such as cement industry, chemical industry and building materials industry for medium and fine crushing of material with medium and high hardness like limestone, coke, coal, etc. Double roll crusher features a two roll structure with smooth surface.

Teeth roll crusher is available in two roll and four roll series. According to the characteristics of material, coarse and fine teeth can be chosen. Four roll type teeth crusher is actually made up of two double roll teeth crushers.

Teeth roll crusher is outstanding for its large crushing capacity. In addition, the hydraulic coupling with limited distance connecting the motor and reducer prevents overload and the overload protection sensor device makes the machine safe and reliable. The hydraulic adjustment of tooth roller space and central lubrication of tooth roll bearing are additional advantages. The optimization design of tooth shape and selective crushing make roll crusher a machine with high efficiency and low energy consumption and uniform granularity.

tooth roller crusher/double teeth roller crusher/tooth roller coal crusher - gaofu

tooth roller crusher/double teeth roller crusher/tooth roller coal crusher - gaofu

In conclusion: 1. Teeth roller Crusher can save electricity 480,000 yuan than the hammer crusher each year(In Case of 250TlH crusher). 2. Hammer crusher needs to increase: dust collector, vibrating screen, heater, broken building civil engineering and other costs bigger than RMB 300,000. 3. Hammer crusher presence of noise, dust, coke and other environmental problems, which bring inconvenience for normal operation, bring hidden dangers for the health of employees. 4. Because the hammer crusher structure principle cause the material too easy to smash, bringing uncertainty to the circulating fluidized bed boiler for its normal working.

This machine is composed by frame, gear roller, transmission device and gear roller gap adjustment device and so on. Adopting alternating current motor to drive the coarse broken tooth roller on the both sides by the strong triangular belt respectively, so that the coarse broken tooth roller rotates in opposite directions. After the material enters the crushing chamber from the inlet, the two coarse roller is broken by a variety of different combinations broken which are rotated at a high speed, the partical size can be reach to around 6mm after fine broken, the size of particle size can be adjusted by fine teeth roller gap to complete.

Weihai Heat and Power Group Co., Ltd. is a large state-owned company which integrates heating, power generation, real estate development, etc. In May 2012, Shandong Weihai Heat and Power Group publicly bid for coal crushing equipment. At that time, as many as 12 suppliers participated in the bidding and 4 major types of coal shredding equipment, our Gaofu machinery also participated in the competitive bidding war. After Shandong Weihai thermoelectric bidding group technical questions, commercial price comparison, field inspection of equipment use, Gaofu manufacturers field inspection layers of strict control, ...

Luxi Chemical Group Limited by Share Ltd is a state-owned large chemical enterprise group. It is a comprehensive chemical industry enterprise integrating chemical fertilizer, chemical and chemical equipment and installation. It is one of the largest chemical industry enterprises in the country. Because it is a large chemical enterprise, it is very strict with the safety of the equipment. The equipment is very careful and careful. After the early exploration and use of the site, full technical communication, strict bidding comparison, the final determination of the use of our GaoFu roll crusher. ...

Federation Pharmaceutical (Inner Mongolia) Co., Ltd. is part of Federal International Holdings Limited (Hong Kong Stock Exchange 3933), founded in April 2007, is the largest federal pharmaceutical investment, the most complete industrial chain production base, The current size of the machine is 5 260t/h high temperature and high pressure circulating fluidized bed boiler. In 2011, two sets of GF4PG350 and GFBTS350 were ordered for high gear roller crusher and GaoFu self-cleaning bar screen GFBTS350 respectively. ...

As one of the world's leading producers of board paper and pulp, we are committed to fulfilling our social responsibilities, particularly in the area of environmental protection. In order to reduce the environmental pollution caused by papermaking sludge, Liwen papermaking adopts the method of mixing coal and burning paper sludge to treat the sludge. ...

Foshan Nanhai Cannon Investment holding Co., Ltd is located under the west woodcutter mountain and the west river in the famous "4A" scenic spot of the country. After decades of development, it has become a power generation, heating, water supply and sewage treatment. Coal water slurry preparation industry-based comprehensive enterprises. Its subordinate enterprise Nanhai Jieneng fuel Co., Ltd., the original use of the 200-ring hammer crusher. ...

Shanxi Orchid Technology Venture Co., Ltd. A Ticker:600123is the first coal listed company in Shanxi Province and the only listed company in Jincheng. It has developed from a single coal enterprise to a coal production company, focusing on coal and chemical fertilizers. Fine coal chemical industry and other diversified industries in one of the modern enterprises, chemical fertilizer raw materials coal base in the country is one of the large enterprises. ...

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.

four roller crusher/four teeth roller crusher/four roller crusher manufacturer - gaofu

four roller crusher/four teeth roller crusher/four roller crusher manufacturer - gaofu

In conclusion: 1. Teeth roller Crusher can save electricity 480,000 yuan than the hammer crusher each year(In Case of 250TlH crusher). 2. Hammer crusher needs to increase: dust collector, vibrating screen, heater, broken building civil engineering and other costs bigger than RMB 300,000. 3. Hammer crusher presence of noise, dust, coke and other environmental problems, which bring inconvenience for normal operation, bring hidden dangers for the health of employees. 4. Because the hammer crusher structure principle cause the material too easy to smash, bringing uncertainty to the circulating fluidized bed boiler for its normal working.

GF4PG four teeth roller crusher is composed by teeth roller with high speed and strength to do the opposite running. The material free fall as meet the gap of teeth roller, the material bigger than two teeth roller gap will be instantly broken and free fall, to achieve the crushing purpose, meet the size requirements. Relative roller with differential operation can cleaning each slot of the material, so as to prevent sticking, blocking phenomenon and make the material without staying on the surface to avoid a repeat broken, avoid over crushed.

Weihai Heat and Power Group Co., Ltd. is a large state-owned company which integrates heating, power generation, real estate development, etc. In May 2012, Shandong Weihai Heat and Power Group publicly bid for coal crushing equipment. At that time, as many as 12 suppliers participated in the bidding and 4 major types of coal shredding equipment, our Gaofu machinery also participated in the competitive bidding war. After Shandong Weihai thermoelectric bidding group technical questions, commercial price comparison, field inspection of equipment use, Gaofu manufacturers field inspection layers of strict control, ...

Luxi Chemical Group Limited by Share Ltd is a state-owned large chemical enterprise group. It is a comprehensive chemical industry enterprise integrating chemical fertilizer, chemical and chemical equipment and installation. It is one of the largest chemical industry enterprises in the country. Because it is a large chemical enterprise, it is very strict with the safety of the equipment. The equipment is very careful and careful. After the early exploration and use of the site, full technical communication, strict bidding comparison, the final determination of the use of our GaoFu roll crusher. ...

Federation Pharmaceutical (Inner Mongolia) Co., Ltd. is part of Federal International Holdings Limited (Hong Kong Stock Exchange 3933), founded in April 2007, is the largest federal pharmaceutical investment, the most complete industrial chain production base, The current size of the machine is 5 260t/h high temperature and high pressure circulating fluidized bed boiler. In 2011, two sets of GF4PG350 and GFBTS350 were ordered for high gear roller crusher and GaoFu self-cleaning bar screen GFBTS350 respectively. ...

As one of the world's leading producers of board paper and pulp, we are committed to fulfilling our social responsibilities, particularly in the area of environmental protection. In order to reduce the environmental pollution caused by papermaking sludge, Liwen papermaking adopts the method of mixing coal and burning paper sludge to treat the sludge. ...

Foshan Nanhai Cannon Investment holding Co., Ltd is located under the west woodcutter mountain and the west river in the famous "4A" scenic spot of the country. After decades of development, it has become a power generation, heating, water supply and sewage treatment. Coal water slurry preparation industry-based comprehensive enterprises. Its subordinate enterprise Nanhai Jieneng fuel Co., Ltd., the original use of the 200-ring hammer crusher. ...

Shanxi Orchid Technology Venture Co., Ltd. A Ticker:600123is the first coal listed company in Shanxi Province and the only listed company in Jincheng. It has developed from a single coal enterprise to a coal production company, focusing on coal and chemical fertilizers. Fine coal chemical industry and other diversified industries in one of the modern enterprises, chemical fertilizer raw materials coal base in the country is one of the large enterprises. ...

toothed roll crusher for coal preparation plant - ftm machinery

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.

crusher rollers | fine twine products - the fine twine co

crusher rollers | fine twine products - the fine twine co

The Ultimate in Hay Conditioning Rollers! All new premium aftermarket replacement rollers run on any machine. Balanced at 1000 RPMs, use existing tension system, no air bags, no modifications to your machine.

roll crusher working principle | henan deya machinery co., ltd

roll crusher working principle | henan deya machinery co., ltd

Roll crushers, or crushing rolls, or double roller crushers, are still used in some mills, although they have been replaced in most installations by cone crushers. They still have a useful application in handling friable, sticky, frozen, and less abrasive feeds, such as limestone, coal, chalk, gypsum, phosphate, and soft iron ores.

The mode of operation of roll crushers is extremely simple, the standard spring rolls consisting of two horizontal cylinders which revolve towards each other. The set is determined by shims which cause the spring-loaded roll to be held back from the solidly mounted roll.

Smooth-surfaced rolls are usually used for fine crushing, whereas coarse crushing is often performed in rolls having corrugated surfaces, or with stub teeth arranged to present a chequered surface pattern. Sledging or slugger rolls have a series of intermeshing teeth, or slugs, protruding from the roll surfaces. These dig into the rock so that the action is a combination of compression and ripping, and large pieces in relation to the roll diameter can be handled. Their main application is in the coarse crushing of soft or sticky iron ores, friable limestone, coal, etc., rolls of 1 m diameter being used to crush material of top size 400 mm.

Wear on the roll surfaces is very high and they often have a manganese steel roll, which can be replaced when they are worn out. The feed must be spread uniformly over the whole width of the rolls in order to give even wear. One simple method is to use a flat feed belt of the same width as the rolls. Since there is no provision for the swelling of broken ore in the crushing chamber, roll crushers must be starvation fed if they are to be prevented from choking. Although the floating roll should only yield to an uncrushable body, choked crushing causes so much pressure that the springs are continually on the work during crushing, and some oversize escapes. Rolls should therefore be used in closed circuit with screens. Choked crushing also causes interparticle comminution, which leads to the production of material finer than the set of the crusher.

There are two types of roller crusher, smooth roller and tooth roller. Smooth roller crusher crushes materials mainly by extrusion of two rollers, meanwhile also has function of grinding, it is good for medium and fine crushing of medium hardness materials. While tooth crusher crushes material mainly by chopping, also has function of grinding, good for coarse and medium crushing of fragile and soft rocks.

Double roller crusher model is named by roller diameter and length, for example model 2PG0640, 2 means two roller, P stands for crusher, G stands for smooth roller, 06 stands for roller diameter 600mm, 40 stands for roller length 400mm. Similarly, 2PGC500x750, C stands for tooth roller.

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