iron ore extracting machineiron ore pulverizer machines

machine to extract phosphorus from iron ore

For each project scheme design, we will use professional knowledge to help you, carefully listen to your demands, respect your opinions, and use our professional teams and exert our greatest efforts to create a more suitable project scheme for you and realize the project investment value and profit more quickly.

Machine Used To Extract Iron From Iron Ore Grinding Iron ore extraction process machineIron ore Overview of what machine were used during the process of mining iron ore what machine were used during the Learn More Tools Made of Iron Iron is too soft and brittle ...

how to extract phosphorus from iron ore - indushotelscoin ore crusher machine quarry plant mining equipment how to extract phosphorus from iron ore the step by step process of extracting iron from its ore using the how to mines remove phosphorus from iron

how to remove phosphorus from iron ore. Removal of phosphorus from iron ores by chemical leaching . Alkalileaching and acidleaching were proposed for the dephosphorization of Changde iron ore, which contains an average of 1.12% for phosphorus content.

China Leading Gold,Phosphorus,Tantalum,Iron Ore Mining umaindia VSI sand making machine is the Mining and Construction Machinery Co, Ltd CME is one of the biggest manufacturer in crushing a&phosphorus iron ore gold mining machine china

how to extract phosphorus from iron ore. iron ore mining mn extract iron ore flow chart of iron ore processing iron production in guinea . from iron ore. high phosphorus iron ore . Get Price And Support Online Processes for phosphorus removal from iron ore - a .

How To Extract Phosphorus From Iron Ore phosphorus iron ore impurities pakistan crusherstone crusher Gulin machine in iron ore processing plant phosphorus iron ore impurities reduce the waste of the stone ease to remove ease to maintain predigest the

machine used to extract iron from iron ore. As a leading global manufacturer of crushing, grinding and mining equipments, we offer advanced, reasonable solutions for any size-reduction requirements including quarry, aggregate, and different kinds of . Get Price ...

Machine Used To Extract Iron From Iron Ore Grinding Iron ore extraction process machineIron ore Overview of what machine were used during the process of mining iron ore what machine were used during the Learn More Tools Made of Iron Iron is too soft and brittle ...

Black Phosphorus Powder. machine to extract phosphorus from iron ore offers 60 black phosphorus powder products. . extract powder fertilizer rich in potassium low in phosphorus with high water . Changsha Chenguang Machinery & Electric Equipment Co., Ltd. .. epoxy mica iron oxide paint synthetic iron red/yellow/black pigment powder ..

what machine extracts iron ore machine used to extract iron from iron ore. Iron Ore Deposits Delaware Lehigh National Heritage Corridor. Magnetite was the main component in the first iron ores that were used in the iron . such as iron to build machines, and coal for ...

Phosphorus Removal from Goethitic Iron Ore with a Low phosphorus goethitic iron ores does not remove sufficient amounts of phosphorus. Thermal processing to disrupt the structure of the goethite has been shown to be effective in making the phosphorus associated with goethite available to a leachant solution and a number of researchers have removed phosphorus from iron ores by .

2018-3-6The iron occur in Fe-mineral ores contains impurities of Phosphorus sulphur and high alkali as well as impregnations of waste rock. To produce a metallurgy treatable concentrate the ore has to be grind for mineral liberation enriched for concentration and

Lithium Ore Processing Equipment Capacity: 0.18-7 (m /min) Suitable Materials: Lithium, copper, zinc, lead, nickel, gold and other non-ferrous metals, ferrous and non-metal. Major Equipment: Jaw crusher, ball mill, sprial classifier, flotation machine, concentrator machine and dryer machine

Abstract A new approach of removing the phosphorus-rich phase from high-phosphorous iron ore by melt separation at 1573 K in a super- gravity field was investigated. The iron-slag separation by super-gravity resulted in phosphorus being effectively removed from the iron-rich phase and concentrated as a phosphorus-rich phase at a temperature get price

Machine to extract phosphorus from iron ore phosphorous removal from iron ore in solid state well in the slurries of solid high phosphorus iron ore and iron ore concentration equipment ron ore of high phosphorus content coexists with other minerals in the form of ...

High phosphorus iron ore beneficiation in china solution 2019311iron ore beneficiation equipmentbm is a iron ore machine manufacturer in china and supplies rock crushers and grinding mills for iron ore beneficiation planthe most commonly used crushers and ...

phosphorus iron ore impurities pakistan crusher,stone crusher . Gulin machine in iron ore processing plant, phosphorus iron ore impurities. . reduce the waste of the stone, ease to remove, ease to maintain, predigest the process. Click & Chat Now

Ore Crusher Phosphorus Our company mainly producing and selling machines like jaw crusher, ball mill, sand maker, sand washing machine, mobile crushing plant, Ore Crusher Phosphorus.Crush rock industries nigeria plc ebonyi state Establishing a special ...

Machine Used To Extract Iron From Iron Ore Grinding Iron ore extraction process machineIron ore Overview of what machine were used during the process of mining iron ore what machine were used during the Learn More Tools Made of Iron Iron is too soft and brittle ...

About 98% of world iron ore production is used to make iron in the of impurities in pig iron such as silicon, phosphorus and sulfur and the reduction in the high phosphorus in iron ore - viratnagar The heating rate of high phosphorus oolitic iron ore was phosphorus iron ores can be removed to High levels of phosphorus in iron ore attract a penalty and

Phosphorus-Containing Mineral Evolution and DRI with iron grade of 89. 11%, iron recovery rate of 83. 47%, and phosphorus content of 0. 28% can be obtained when ore fines with particle size of 10 m account for 78. 15%. View Show abstract READ MORE

Machine Used To Extract Iron From Iron Ore Grinding Iron ore extraction process machineIron ore Overview of what machine were used during the process of mining iron ore what machine were used during the Learn More Tools Made of Iron Iron is too soft and brittle ...

Iron ore Citizendia The typical magnetite iron ore concentrate has less than 0. 1% phosphorus, 3-7% silica and less than 3% .iron ore are a major source of cheap high grade Iron ore . About Iron Ore | PT KUBA PRIMA MINING The typical magnetite iron ore concentrate has less than 0.1% phosphorus, 3 . for the iron, these effects are either good or bad. ...

Machine used to extract iron from iron ore 4- 9756 ratings the gulin product line, consisting of more than 30 machines, sets the standard for our industrye plan to help you meet your needs with our equipment, with our distribution and product support system, and. ...

Crusher machine manufacturer indonesia. marble powder crusher machine for sale from sbm is the main machine used to processing t read more copper ore crushing plant in indonesia sand making machine sand making machine manufacturer production of sand

About 98% of world iron ore production is used to make iron in the of impurities in pig iron such as silicon, phosphorus and sulfur and the reduction in the high phosphorus in iron ore - viratnagar The heating rate of high phosphorus oolitic iron ore was phosphorus iron ores can be removed to High levels of phosphorus in iron ore attract a penalty and

Iron Ore Crusher,XSM Ore Crusher Shanghai Xuanshi Machinery . equipment used in iron ore processing Crusher South Africa. iron ore concentrator process. . what equipment is used to extract iron ore BINQ Mining. iron and steel More details Get Price

international phosphorus supply. 9. Communicate how individual choices impact phosphate demand and the phosphate cycle. Introduction Phosphorus is not one of the most common elements in Earth's crust and mantle, yet it is essential for all life, plant and

Phosphorus Problem In Iron Ore Gold cil process yantai jinpeng mining equipment ohe gold cil process is mainly used in the oxide ore which has low grade of silver its more economize and has more benefit cil gold plant cip cil carbon leaching gold ore crushing plant crushing rock for gold gold mine trading cyanidation of gold gold mining techniques cyanide gold leaching mining of iron ore gold ...

pulverizer | technic pack wiki | fandom

The Pulverizer is a machine from the Thermal Expansion mod that smashes blocks and items. The pulverized ores can be cooked in the Induction Smelter to produce ingots. The secondary byproduct of pulverizing only happens a percentage of the time.

The machine has one input (blue), a primary output (yellow) and a secondary output (red). If you use the Crescent Hammer to make the primary and secondary output both output to the same place, they will both be orange instead of yellow and red. The maximum power for the Pulverizer is 7 MJ/t and its energy storage is 22400 MJ (14 coal).

You put a buildcraft engine on the right side of the pulverizer (i.e. steam engine) then on the redstone options in the pulverizer, click the redstone powder button, it changes to gunpowder and says that redstone control is disabled, allowing you to pulverize anything you put in the blue spot!

pulverizer | feed the beast wiki | fandom

The Pulverizer is a machine added by Thermal Expansion. It smashes blocks and items and pulverizes Ores into twice as much dust. Pulverized ores can be cooked in the Induction Smelter, Electric Furnace, or any other furnace, to produce ingots. The secondary byproduct of pulverizing only happens a percentage of the time. It requires an Engine to run, or a filled redstone energy cell.

There is a small chance to receive a secondary byproduct when using the Pulverizer, this giving it a slight advantage over the Macerator. However, this machine is limited to those items listed in the table below and therefore cannot be used with all of the Ores in certain Modpacks associated with FTB.

The Pulverizer has a maximum power of 4 MJ/t and can store up to 4800 MJ.The pulverizer can be powered by any type of engine. However, it is recommended to use at least one or multiple redstone energy cells (powered by a series of engines) for it to work consistently.

When connecting the Pulverizer to a Pipe system, it is important to note that the machine has one input (blue), a primary output (red) and a secondary output (yellow). These outputs can be changed by using the Configuration menu next to the machine GUI. This way it is also possible to use two sides of the machine for the same output, or have primary and secondary products output to the same side (orange).

This machine can also be connected to an applied energistics network. When connecting to this type of network, you must configure the input side to be non slot specific, meaning it should not have a color. You then connect an ME export bus to the side you specified as the input (be sure to specify what you want to be input). Then connect an ME interface to the export side of the machine, and identify this side as the proper export colors in the pulverizer GUI. You do not need to configure the ME interface, as it will automatically accept the input from the machine.

A redstone signal can be used to turn on and off the machine. This is important to note when setting up your engines to power the pulverizer; levers placed in certain spots will power both the engine and the pulverizer, which will result in none of your ores being pulverized until the redstone signal to the pulverizer is removed, or you configure the machine to ignore the redstone signal in the GUI.

iron processing | britannica

iron processing, use of a smelting process to turn the ore into a form from which products can be fashioned. Included in this article also is a discussion of the mining of iron and of its preparation for smelting.

Iron (Fe) is a relatively dense metal with a silvery white appearance and distinctive magnetic properties. It constitutes 5 percent by weight of the Earths crust, and it is the fourth most abundant element after oxygen, silicon, and aluminum. It melts at a temperature of 1,538 C (2,800 F).

Iron is allotropicthat is, it exists in different forms. Its crystal structure is either body-centred cubic (bcc) or face-centred cubic (fcc), depending on the temperature. In both crystallographic modifications, the basic configuration is a cube with iron atoms located at the corners. There is an extra atom in the centre of each cube in the bcc modification and in the centre of each face in the fcc. At room temperature, pure iron has a bcc structure referred to as alpha-ferrite; this persists until the temperature is raised to 912 C (1,674 F), when it transforms into an fcc arrangement known as austenite. With further heating, austenite remains until the temperature reaches 1,394 C (2,541 F), at which point the bcc structure reappears. This form of iron, called delta-ferrite, remains until the melting point is reached.

The pure metal is malleable and can be easily shaped by hammering, but apart from specialized electrical applications it is rarely used without adding other elements to improve its properties. Mostly it appears in iron-carbon alloys such as steels, which contain between 0.003 and about 2 percent carbon (the majority lying in the range of 0.01 to 1.2 percent), and cast irons with 2 to 4 percent carbon. At the carbon contents typical of steels, iron carbide (Fe3C), also known as cementite, is formed; this leads to the formation of pearlite, which in a microscope can be seen to consist of alternate laths of alpha-ferrite and cementite. Cementite is harder and stronger than ferrite but is much less malleable, so that vastly differing mechanical properties are obtained by varying the amount of carbon. At the higher carbon contents typical of cast irons, carbon may separate out as either cementite or graphite, depending on the manufacturing conditions. Again, a wide range of properties is obtained. This versatility of iron-carbon alloys leads to their widespread use in engineering and explains why iron is by far the most important of all the industrial metals.

There is evidence that meteorites were used as a source of iron before 3000 bc, but extraction of the metal from ores dates from about 2000 bc. Production seems to have started in the copper-producing regions of Anatolia and Persia, where the use of iron compounds as fluxes to assist in melting may have accidentally caused metallic iron to accumulate on the bottoms of copper smelting furnaces. When iron making was properly established, two types of furnace came into use. Bowl furnaces were constructed by digging a small hole in the ground and arranging for air from a bellows to be introduced through a pipe or tuyere. Stone-built shaft furnaces, on the other hand, relied on natural draft, although they too sometimes used tuyeres. In both cases, smelting involved creating a bed of red-hot charcoal to which iron ore mixed with more charcoal was added. Chemical reduction of the ore then occurred, but, since primitive furnaces were incapable of reaching temperatures higher than 1,150 C (2,100 F), the normal product was a solid lump of metal known as a bloom. This may have weighed up to 5 kilograms (11 pounds) and consisted of almost pure iron with some entrapped slag and pieces of charcoal. The manufacture of iron artifacts then required a shaping operation, which involved heating blooms in a fire and hammering the red-hot metal to produce the desired objects. Iron made in this way is known as wrought iron. Sometimes too much charcoal seems to have been used, and iron-carbon alloys, which have lower melting points and can be cast into simple shapes, were made unintentionally. The applications of this cast iron were limited because of its brittleness, and in the early Iron Age only the Chinese seem to have exploited it. Elsewhere, wrought iron was the preferred material.

Although the Romans built furnaces with a pit into which slag could be run off, little change in iron-making methods occurred until medieval times. By the 15th century, many bloomeries used low shaft furnaces with water power to drive the bellows, and the bloom, which might weigh over 100 kilograms, was extracted through the top of the shaft. The final version of this kind of bloomery hearth was the Catalan forge, which survived in Spain until the 19th century. Another design, the high bloomery furnace, had a taller shaft and evolved into the 3-metre- (10-foot-) high Stckofen, which produced blooms so large they had to be removed through a front opening in the furnace.

The blast furnace appeared in Europe in the 15th century when it was realized that cast iron could be used to make one-piece guns with good pressure-retaining properties, but whether its introduction was due to Chinese influence or was an independent development is unknown. At first, the differences between a blast furnace and a Stckofen were slight. Both had square cross sections, and the main changes required for blast-furnace operation were an increase in the ratio of charcoal to ore in the charge and a taphole for the removal of liquid iron. The product of the blast furnace became known as pig iron from the method of casting, which involved running the liquid into a main channel connected at right angles to a number of shorter channels. The whole arrangement resembled a sow suckling her litter, and so the lengths of solid iron from the shorter channels were known as pigs.

Despite the military demand for cast iron, most civil applications required malleable iron, which until then had been made directly in a bloomery. The arrival of blast furnaces, however, opened up an alternative manufacturing route; this involved converting cast iron to wrought iron by a process known as fining. Pieces of cast iron were placed on a finery hearth, on which charcoal was being burned with a plentiful supply of air, so that carbon in the iron was removed by oxidation, leaving semisolid malleable iron behind. From the 15th century on, this two-stage process gradually replaced direct iron making, which nevertheless survived into the 19th century.

By the middle of the 16th century, blast furnaces were being operated more or less continuously in southeastern England. Increased iron production led to a scarcity of wood for charcoal and to its subsequent replacement by coal in the form of cokea discovery that is usually credited to Abraham Darby in 1709. Because the higher strength of coke enabled it to support a bigger charge, much larger furnaces became possible, and weekly outputs of 5 to 10 tons of pig iron were achieved.

Next, the advent of the steam engine to drive blowing cylinders meant that the blast furnace could be provided with more air. This created the potential problem that pig iron production would far exceed the capacity of the finery process. Accelerating the conversion of pig iron to malleable iron was attempted by a number of inventors, but the most successful was the Englishman Henry Cort, who patented his puddling furnace in 1784. Cort used a coal-fired reverberatory furnace to melt a charge of pig iron to which iron oxide was added to make a slag. Agitating the resultant puddle of metal caused carbon to be removed by oxidation (together with silicon, phosphorus, and manganese). As a result, the melting point of the metal rose so that it became semisolid, although the slag remained quite fluid. The metal was then formed into balls and freed from as much slag as possible before being removed from the furnace and squeezed in a hammer. For a short time, puddling furnaces were able to provide enough iron to meet the demands for machinery, but once again blast-furnace capacity raced ahead as a result of the Scotsman James Beaumont Nielsens invention in 1828 of the hot-blast stove for preheating blast air and the realization that a round furnace performed better than a square one.

The eventual decline in the use of wrought iron was brought about by a series of inventions that allowed furnaces to operate at temperatures high enough to melt iron. It was then possible to produce steel, which is a superior material. First, in 1856, Henry Bessemer patented his converter process for blowing air through molten pig iron, and in 1861 William Siemens took out a patent for his regenerative open-hearth furnace. In 1879 Sidney Gilchrist Thomas and Percy Gilchrist adapted the Bessemer converter for use with phosphoric pig iron; as a result, the basic Bessemer, or Thomas, process was widely adopted on the continent of Europe, where high-phosphorus iron ores were abundant. For about 100 years, the open-hearth and Bessemer-based processes were jointly responsible for most of the steel that was made, before they were replaced by the basic oxygen and electric-arc furnaces.

Apart from the injection of part of the fuel through tuyeres, the blast furnace has employed the same operating principles since the early 19th century. Furnace size has increased markedly, however, and one large modern furnace can supply a steelmaking plant with up to 10,000 tons of liquid iron per day.

Throughout the 20th century, many new iron-making processes were proposed, but it was not until the 1950s that potential substitutes for the blast furnace emerged. Direct reduction, in which iron ores are reduced at temperatures below the metals melting point, had its origin in such experiments as the Wiberg-Soderfors process introduced in Sweden in 1952 and the HyL process introduced in Mexico in 1957. Few of these techniques survived, and those that did were extensively modified. Another alternative iron-making method, smelting reduction, had its forerunners in the electric furnaces used to make liquid iron in Sweden and Norway in the 1920s. The technique grew to include methods based on oxygen steelmaking converters using coal as a source of additional energy, and in the 1980s it became the focus of extensive research and development activity in Europe, Japan, and the United States.

hulett unloader - history's forgotten machines

The native of Conneaut, Ohioa Lake Erie town thats as far northeast as you can get and still be in the Buckeye Stateended his formal schooling at age 18. He worked in groceries, owning a store not far from his hometown, before branching into manufacturing, which was driving the economy of nearby Cleveland, where he moved in 1881.

It seemed like an odd career change, but Hulett was an odd man. Author William D. Ellis, in his history of Clevelands infamous Cuyahoga River, described Hulett as a bullfrog in a baggy suit who wasnt above putting a plug of tobacco in his mouth while taking meetings with captains of industry. In those appointments, he talked as if he were still driving a team of draft horses back home on the farm.

But Hulett had a farm boys ingenuityand he was in the right place to capitalize on it. Though its tough to imagine now, Cleveland at the end of the 19th century was the Silicon Valley of its day, with more patent applications than anywhere else in the nation. The city was booming, thanks to John D. Rockefeller and oil refining, as well as shipping and the nascent steel industry.

Hulett watched the ships journey to Cleveland to docks on Lake Erieor along the Cuyahoga River, the crooked river that proved so difficult to navigate that a spot fraught with shipwrecks is still known as the collision bend. At the time, cargo was unloaded one wheelbarrow at a time, by workers who were paid 10 cents a ton to unload the ship. It took a crew of 100 workers five days to unload 300 tons of cargo from a ship.

Hulett, a 2006 inductee into the National Inventors Hall of Fame, received more than two dozen patents for various machines in his career. But his most important was Patent No. 652,313A in 1899, for a 92-foot-tall unloading apparatus that could scoop iron ore from a ships hold 10 tons at a timean almost unfathomable number back then, even though more than 13 million tons of ore were shipped on the Great Lakes that year.

At first, the machine was merely theoretical. Hulett set a meeting with steel magnate Andrew Carnegie, who wanted to see it work before buying one. Hulett got a Cleveland-based company to take the leap of faith and build the unloader at a cost of $45,000on spec.

The following year, Carnegie and his sidekick, Charles Schwab, went to Huletts hometown for a demonstration of a prototype. Neither man was the type to be easily impressed. Carnegie was a Scottish immigrant whod risen from humble origins to one of the richest men in the world. While Schwabs ascent wasnt quite as meteoric, hed gone from engineer to president of Carnegies company at the age of 35.

They saw the steam-powered machine, which was said to resemble a grasshopper arm, on a gantry built over railroad tracks. The machine lowered its armoverbalanced by 6,000 pounds so gravity powered its descentinto the ships hold. The bucket at the end of the arm had a clamshell opening, gobbling up tons of iron ore and bringing it up to deposit into waiting train cars. The entire process to grab and dump one 10-ton scoop of ore took about a minute.

If we didnt have the Huletts, says Ray Saikus, past president of the Cleveland Chapter of the American Society of Mechanical Engineers (ASME), we wouldnt have been able to produce armaments that won World War I and II.

The methods of loading and unloading were a transformative part of the Great Lakes, says Chris Gillcrist, director of the National Museum of the Great Lakes in Toledo. And the Huletts had a lot to do with that.

Ships could be unloaded with a crew of 25a far cry from the hundreds previously requiredand they worked the machine. One brave soul actually did the unloading, riding atop the arm that controlled its dip into the ships hold. What took a week could now be done in a day. Almost instantly, the cost of shipping iron ore decreased from 18 to six cents a ton.

The Huletts changed the very form of the ships that sailed the Great Lakes. Prior to their invention, the big Great Lakes transporters were so-called whaleback ships, designed by Great Lakes ship captain Alexander McDougall, another native of Scotland. As their name implies, the freighters had curved hulls and, when fully laden, resembled a whale sailing the Great Lakes. New ships were built to accommodate the Huletts with great big cargo holds unencumbered by deck beams. The Huletts made whalebacks obsolete, Gillcrist says, noting theyd virtually vanished from the Great Lakes by the 1930s.

The increase in size of lake ore carriers from 300 to 625 feet in length and from 3,000 to 13,000 tons in capacity in the past 30 years has been largely the result of improvements in unloading, wrote R.C. Allen of Oglebay Norton in 1923, on the occasion of Huletts death.

Within a decade, Huletts could be found at every major port on Lake Erie. At their peak, there were 77 Huletts, almost all on the Great Lakes. There were a couple on the East Coast, but the Huletts, which couldn't be adjusted for ocean tides, were primarily tools for the Great Lakes.

They never wear out and nobodys ever designed or built a machine that will do the job better, faster, or more economically, Robert Anslow, the man who sold the Huletts, told the Cleveland Plain Dealer in 1969.

In 1902four years after Hulett received his patent and three after the unloader was first demonstrated in Conneautthe Hennepin set out to sea, retrofitted as the first self-unloading ship. Launched as the George H. Dyer 14 years earlier, the 220-foot craft was already dwarfed by ships twice its size. It carved out a niche as a self-unloader for the next 25 years. Six years later after the Hennepin, the Wyandotte launched as the first ship built as a self-unloader.

The Huletts efficiency ultimately helped contribute to their undoing. As they reduced unloading and transportation costs, they also reduced the cost of steel productionwhich could then be used to make bigger ships. In 1927, the Carl D. Bradley became the first self-unloader to take the Queen of the Lakes title as the Great Lakes longest ship, at 639 feet.

Self-unloading ships have followed the same basic principle since their inception, with the ships hold funneling to a conveyor under it, which carries the ships cargo to another conveyor that brings it up on deck, where it can be delivered through another conveyor into nearby vehicles. Back then, it could work for soft coal and other material, but it wasnt able to successfully transport heavier cargo, like iron ore.

The mining industry itself had changed, Gillcrist says. Once that happened, all the boats started going toward self-unloaders, which made the Huletts obsolete. Now, you could unload cargo anywhere, and you didnt need a special crew to do it, which helped reduce expenses.

The steel industry also faced tectonic shifts. The Great Lakes cities that were home to tremendous steel productionas well as cities like Pittsburgh and Youngstown, which werent on the Great Lakes, but were close enough to take advantage of their shipping capacitysaw mills close and companies fold. The Midwestern cities that were destinations for the train cars the Huletts loaded with ore no longer needed them.

Huletts could be found throughout the lower Great Lakes, from Chicago to Buffalo. But if theres one city thats most closely associated with the giant unloaders, its Cleveland. The unloaders inventor and namesake spent most of his adult life there. Many of the unloaders were built by Wellman-Seaver Morgan in Cleveland. And boasting 14 unloaders at its peak, no city had more, making it the largest ore shipping center in the U.S.

For generations, four of the massive unloaders stood like sentinels watching the Cleveland coastline as part of the Pennsylvania Railroad docks on Whiskey Island. In fact, if youve ever seen a Hulett, it was probably those four, which can be seen in the opening credits of Major League.

After the Pennsylvania Railroads merger with the New York Central to form Penn Central (and that companys subsequent bankruptcy), the unloaders passed to Conrail, which had no need for them. By 1987, they were only unloading around 30 ships a yearjust 10 percent of what theyd done previouslyand the Huletts were finally decommissioned in 1992, the last of their kind on Lake Erie. (Two more on the Calumet River in Chicago lasted until 1999.)

Conrail sought a permit to demolish the Huletts, but a historic preservation movement rose up in response. In 1998, ASME declared the Huletts a Historic Mechanical Engineering Landmark, one of just 275 sites in the world to reserve such a designation. The Huletts are also listed on the National Register of Historic Places.

Ultimately, two of the four Cleveland Huletts were torn down for scrap, while the other two were disassembled and remain in pieces on Whiskey Island, which has become a popular recreation destination in Cleveland. The city remains a major port, with 13 million tons of cargo annually. But in a state where tourism is a multibillion-dollar industry, people are starting to see the value of the lakefront for recreation. Barges now share space on the Cuyahoga with high school crew teams. People now live in the Flats, with a variety of restaurants and bars on the waterfront.

And that leads to the question of what to do with the remnants of the Huletts on Whiskey Island. Saikus says getting them rebuilt wouldnt be the problem, even with an estimated cost of $10 million. A lot of our members are corporate heads, he says. Money isnt the issue.

Rather, he says, its getting local governmental entities on board. Its been a struggle for the last 20 years, but an answer could be at hand. The Cleveland Landmarks Commission approved using part of the Hulett for a display at North Coast Harbor, at the end of East Ninth Street in downtown Cleveland.

the right pulverizer for reliable size reduction of any material - retsch

The RETSCH pulverizer range covers applications from the preliminary size reduction of particles of several centimeters to fine grinding down to the nano range. Retsch Pulverizer Mill.A good pulverizer guarantees reproducible sample preparation, which is the basis for any reliable and accurate laboratory analysis. RETSCH products turn any laboratory sample into a representative part with required homogeneous analytical fineness.

Our comprehensive range of the most modern pulverizer mills and crushers are suitable for coarse, fine and ultra-fine size reduction of almost any material. The wide selection of grinding tools and accessories not only ensures contamination- free preparation but also adaptation to the specific requirements of such different areas of application as construction materials, metallurgy, foodstuffs, pharmaceuticals or environment. Particle size reduction of solids or bulk materials is required when the particles are too coarse or the material is too inhomogeneous for subsequent processes such as analysis, division, mixing or further processing. The standard deviation of any subsequent analysis can be minimized drastically by particle reduction and homogenization of the analysis sample.

If the initial particle size of the sample is coarse, it might be necessary to use two different pulverizer machines, one for preliminary size reduction and one for fine grinding, to achieve analytical fineness. To choose suitable grinding tools is also part of the selection process for finding the right pulverizer for your material. Here the important criteria are hardness, abrasion resistance, possible contamination and, for ball mills, the energy input.

With a RETSCH pulverizer you can rely on more than a century of experience and the best of German engineering technology. You will receive a product that is long-lasting, reliable and engineered with an eye for detail. Have a look at our company video for some impressions on how we work: