chinaware ball mill explosion

chinaware ball mill

Chinaware ball mill is mainly used for the mixing and grinding of materials, and the fineness of the final products is even, thus saving motive power. It can be used in both dry grinding and wet grinding. This machine can adopt different lining board types according to the production need to satisfy different needs of the customers. The fineness of the grinding process is automatically controlled by the grinding time.

This product has the features of small investment, energy and electricity conservancy, unique structure, easy and simple operation, safe use and stable and reliable performance, so that it is suitable for mixing and grinding common and special materials. According the proportion and hardness of the materials and the output, the customers can choose suitable machine type and the types of lining plate and grinding media.

Chinaware ball mill is a horizontal type cylinder rotary device which is mainly composed of feeding part, discharging part, rotary part and driving part which includes reducer, small drive gear, electrical machine and electronic control. The hollow shaft uses steel casting, the inner lining can be dismantled and changed, and the rotary rack wheel uses casting gear hobbing.

The electro motor drives the cylinder to rotate through the reducer, and the broken ore and the steel balls inside the cylinder are brought by the lining board to a certain height under the frictional force and eccentric force produced by the rotation of the cylinder. Due to the action of gravity, the ores will drop and are gradually crushed under the impacting and grinding effect and the crushed ores will be discharged out of the cylinder through the discharging part. The discharged ores are classified by the spiral classifier, and the coarse sand will go back to ball mill from the joint feeding machine to be ground again. The feeding machine continuously and evenly feeds materials, and the ores will continuously and evenly go into the ball mill through the joint feeding machine, and the ground materials will be continuously discharged from Chinaware ball mill. For this reason, Chinaware ball mill is a powder grinding machine that can continuously work for 24 hours every day.

Model Feeding capacity t/time Shell rotation speed r/min Reference motor kw Liner material 600700 0.05 50 2.2 Chinaware,silicon,rubber or metalthe related motor power varied as per the different liner materials and grinding materials 800600 0.075 42 3 9001200 0.2 38.5 5.5 13001500 0.5 33 7.5 15001800 1.2 28.5 11 18002000 1.5 24 15 26002800 5 16.5 37 30003800 10 14.5 57.2 32004600 15 13.5 75

chinaware ball mill - hongxing machinery

Chinaware ball mill is mainly used for mixing and milling materials with even output fineness and energy-saving not only the wet mill, but also dry mill. The machine can use the different lines according to the product requirement to satisfy different requirement.

The product fineness relies on the grinding time. Reduced voltage starting of motor reduces the starting current whose structure is divided into integral and detached types. This product is favored for low investment, energy economy, novel structure, simple operation, reliable performance and safety. It is suitable for general and special material mixing and grinding. Users can choose proper type and liner according to the proportion, hardness, and production.

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chinaware ball mill|ceramics ball mill - henan fote machinery co., ltd

Ceramics ball mill is mainly used for mixing and grinding materials, with advantages of even fineness and energy saving. Ceramics ball mill is commonly used in different production lines to satisfy different requirements on fineness of final products.

The structure of ceramics ball mill or chinaware ball mill is divided into integral type and freestanding type, and its advantages are lower investment, energy saving, novel structure, simple operation, large capacity, etc. Ceramics ball mill is mainly used for mixing and grinding materials, which has uniform product fineness and saves power. Ceramics ball mill can be used for both wet and dry type grinding. Chinaware ball mill can also use different lining boards according to production requirements so as to meet different needs.

Model Feeding capacity t/time Shell rotation speed r/min Reference motor kw Liner material 600700 0.05 50 2.2 Chinaware,silicon,rubber or metalthe related motor power varied as per the different liner materials and grinding materials 800600 0.075 42 3 9001200 0.2 38.5 5.5 13001500 0.5 33 7.5 15001800 1.2 28.5 11 18002000 1.5 24 15 26002800 5 16.5 37 30003800 10 14.5 57.2 32004600 15 13.5 75 Model Feeding capacity t/time Shell rotation speed r/min Liner material 600700 0.05 50 Chinaware,silicon,rubber or metalthe related motor power varied as per the different liner materials and grinding materials 800600 0.075 42 9001200 0.2 38.5 13001500 0.5 33 15001800 1.2 28.5 18002000 1.5 24 26002800 5 16.5 30003800 10 14.5 32004600 15 13.5

Through long-term arduous technology research and international communication, our product quality has been in line with international level, winning a world-wide acclaim and honor, and our products are exported to ninety countries and regions like Tanzania, Nigeria, South Africa, Kenya, Turkey, Saudi Arabia, Philippines, Indonesia, Malaysia, Vietnam, Mexico, Brazil, Russia, Uzbekistan, Australia, etc.

ceramic ball mill - hongxing mining machinery

Ceramic ball mill is mainly used for mixing and grinding materials, uniformity of product fineness and power saving. It can be dry or wet. The machine can use different lining types according to production needs. The fineness of the grinding operation depends on the grinding time. This machine has an integral or independent structure.

The Chinaware ball mill has a wide range of applications, and its final product quality is high and its grade is high. Not only Chinaware ball mill, but other products of our company are exported to all over the world. Customers from different countries and regions will also choose to come to our company for field visits. We also warmly welcome you to visit our company.

The gold ore processing plant and processing technology mainly includes three processes: crushing, milling and beneficiation. Our company's gold ore processing plant has the characteristics of high degree of automation, high breaking rate, low operating cost, energy saving and environmental protecti

The main equipment used in copper beneficiation line is stone crusher, jaw crusher, ball mill, magnetic separator, vibrating screen, vibrating feeder, etc. In addition to copper, we can design different processes for customers according to different ores.

how flour dust caused the washburn mill explosion

In May 1878, Minneapolis was booming as the plentiful rivers, streams, and waterfalls running throughout the city powered its rapidly-expanding milling industry. Mills produced timber and flour for millions across the nation as the United States expanded westward and Minneapolis was perfectly positioned to take in 100 boxcars of wheat every day and turn it into high-quality flour.

In the years following the Civil War, technological and scientific breakthroughs were fueling a new age of industrial expansion. Minneapolis quickly became the flour-milling capital of the world, turning itself into the northern-plains metropolis that it is today.

But the growth always comes at a cost, and in 1878, the lives of nearly two dozen mill workers became the price Minneapolis paid after the largest flour mill in the world blew up with such force that it leveled was heard 10 miles away.

Hennepin County LibraryMinneapolis' Washburn 'A' Mill before its destruction in 1878. The largest mill in the world at the time, it was capable of producing about one-third of the more than one million of pounds of flour milled in Minneapolis every day in the 1870s.

The crown jewel of Minneapolis' flourishing milling district was the gargantuan Washburn 'A' Mill, which produced almost 2,000 barrels of flour daily. Cadwallader Colden Washburn, an industrialist and former Civil War general, built the mill in 1874 over St. Anthony Falls and employed 200 workers in city with a total population of only about 40,000. At the time of its construction, the 'A' Mill was declared the largest in the world.

The Washburn-Crosby company was drawn to the city by its churning waterfalls, which provided cheap and renewable power for the mill to operate. The development of an extensive river and rail network around Minneapolis also made bringing wheat in from the plains and shipping out the processed flower quick and efficient.

But while the city's mills fed its growing population and produced enough surplus to turn huge profits for the industry, milling was not without its dangers. Like any industrial worker of the era, millers risked severe and even fatal injuries from the mill's machinery.

From snapped fan belts that could break bones and cut deeply into a worker's flesh to the gears and mill wheels that could crush any limb that got caught beneath or between them. Deadliest of all were the fires and explosions produced by the friction of the machinery igniting the fine particulates in the air that permeated the entire building.

In an era before safety regulations, most mill owners treated efforts to protect workers as a waste of money at best or as a way to increase profits at the expense of human lives at worst and it was almost always the latter.

At 6 p.m. on May 2, 1878, the day shift at the 'A' Mill clocked out and was replaced by the skeleton crew for the night shift. A Dutch-American millwright, Ernest Grundman, was part of the day shift, but he was staying late that night. His job was to maintain the mill's machinery, and he was no stranger to the risks of his trade: a promising baseball career had been cut short when he lost parts of two fingers to machinery in 1876.

From his workbench, he would have seen the groaning, overheated mill wheels, the barrels of lard used as a lubricant, and the suction flues used to whisk away the enormous amounts of dust in the air. From where he worked, Grundman saw two of the millstones run dry, sending off a deadly spark. The dust in the flues quickly caught fire and pressure built up rapidly as the burning particulate released expansive gasses, turning the giant flour mill into a powder keg.

The explosion killed 14 mill workers instantly, including Grundman who was likely the closest person to the source of the blast. The expanding fireball from the explosion soon set the surrounding buildings alight and the remaining four perished in the resulting inferno.

"Each floor above the basement became brilliantly illuminated, the light appearing simultaneously at the windows as the stories ignited one above the other. Then the windows bust out, the walls cracked between the windows and fell, and the roof was projected into the air to great height, followed by a cloud of black smoke, through which brilliant flashes resembling lightening passing to and fro."

"A cloud of smoke issued from the dust spouts in the basement of the mill, and there was an odor of burnt bread ... a little flame about as big as a bushel basket darted out of a window in the basement near the canal in front of the mill. Then it sucked back and all was dark. Then there was a large flame and it went flashing up the mill, quivering against the upper windows, reaching quick as lightening to the top of the seventh story. The roof was lifted and there was a loud report, then another and a terrific explosion which then [knocked] the whole building with its walls of stone, six feet thick at the base, to the ground in a mass of ruins."

The Scientific American later reported that: "Scarcely one stone stands upon another, as it was laid in big Washburn mill, and the chaotic pile of huge limestone rocks is interwoven with slivered timbers, shafts, and broken machinery."

The destruction was so terrible that the fire gutted five nearby mills. Residents were amazed that the entire city wasn't destroyed, having "met with a calamity, the suddenness and horror of which it is difficult to comprehend." The next day, a media frenzy began.

As the news spread, tourists began streaming into town to gawk at the smoldering ruins. Rumors about what had caused the disaster flew thick and fast. People blamed everything from earthquakes to trainloads of nitroglycerine. Some even believed the crackpot idea that the Mississippi River had decomposed into combustible gas.

Washburn generously compensated the families of the dead workers, unusual for an industrialist of the time. He then vowed to rebuild the mill bigger and safer than before. He installed cutting-edge dust traps which vastly reduced flammability and, crucially, he replaced the traditional millstones used since ancient times with chilled cast iron rollers.

Besides improving the productivity of the milling process, the cast iron was far less likely to spark. Washburn's rebuilt 'A' mill was soon producing 12,000 barrels daily, while his employees were considerably safer.

Minneapolis continued to dominate the flour industry for decades, peaking during the First World War. In 1928, Washburn-Crosby merged with two dozen other companies to form General Mills. Though 18 men lost their lives to a tragic industrial accident, their deaths helped improve the safety of flour mills in the city and beyond.

Now that you've learned about the Washburn mill explosion, find out more about the Halifax Explosion, another tragic industrial disaster. Then, have a look at these images of some of the deadliest disasters of modern history.

chinaware ball mill|ceramics ball mill-ore dressing machine-henan fote machinery co., ltd

Fote ceramics ball mill is made of ceramic for its whole body. Its small capacity leads to its application in the small amount of trial and discontinuous production. This new energy-saving ceramics ball mill is researched and developed by the domestic beneficiation machinery experts combining the latest ball mill technology. The ceramics ball mill is mainly used for material mixing and grinding considering its products having features of regular granularity and power saving. It can do both dry and wet grinding and can choose different lining boards to meet various demands according to different production requirements.

The domestic chinaware industry is developing rapidly, especially the building ceramic industry. Large enterprises have sprung up increasingly. In order to reduce the energy consumption and improve the land utilization, these enterprises have made strict requirement for the production capacity and energy consumption of the ceramics ball mill, which results to the wide usage of continuous system ball mills with low labor intensity and large yield. In the building ceramic industry, as the wet continuous system have advantages like large output, low energy consumption, small area coverage, high degree of automation, low labor intensity and little environmental pollution, it will achieve an unprecedented achievement than the old machines.

Model Feeding capacity t/time Shell rotation speed r/min Reference motor kw Liner material 600700 0.05 50 2.2 Chinaware,silicon,rubber or metalthe related motor power varied as per the different liner materials and grinding materials 800600 0.075 42 3 9001200 0.2 38.5 5.5 13001500 0.5 33 7.5 15001800 1.2 28.5 11 18002000 1.5 24 15 26002800 5 16.5 37 30003800 10 14.5 57.2 32004600 15 13.5 75

Fote ceramics ball mill is made of ceramic for its whole body. Its small capacity leads to its application in the small amount of trial and discontinuous production. This new energy-saving ceramics ball mill is researched and developed by the domestic beneficiation machinery experts combining the latest ball mill technology. The ceramics ball mill is mainly used for material mixing and grinding considering its products having features of regular granularity and power saving. It can do both dry and wet grinding and can choose different lining boards to meet various demands according to different production requirements.

The domestic chinaware industry is developing rapidly, especially the building ceramic industry. Large enterprises have sprung up increasingly. In order to reduce the energy consumption and improve the land utilization, these enterprises have made strict requirement for the production capacity and energy consumption of the ceramics ball mill, which results to the wide usage of continuous system ball mills with low labor intensity and large yield. In the building ceramic industry, as the wet continuous system have advantages like large output, low energy consumption, small area coverage, high degree of automation, low labor intensity and little environmental pollution, it will achieve an unprecedented achievement than the old machines.

Model Feeding capacity t/time Shell rotation speed r/min Liner material 600700 0.05 50 Chinaware,silicon,rubber or metalthe related motor power varied as per the different liner materials and grinding materials 800600 0.075 42 9001200 0.2 38.5 13001500 0.5 33 15001800 1.2 28.5 18002000 1.5 24 26002800 5 16.5 30003800 10 14.5 32004600 15 13.5

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its the correct way to open the chinaware ball mill - news&events - henan fote machinery co., ltd

There is always Chinaware Ball Mills figure, from limestone to basalt, from stone production to a variety of ore crushing. The demand of Chineseware Ball Mill increases, with the rapid development of domestic ceramic industry, especially the development of the construction ceramics industry.

The Chinaware Ball Mill produced by Henan Hongxing Machinery Co.,Ltd. Can adopt different liner types according to the production lines. The users can choose the suitable model, the lining board, and the medium type, according to the material proportion, the hardness, the output and other comprehensive factors.

The Chinaware Ball Mill adopts the design of self-coupling decompression and start-up of electric-press, as to can reduce the start-up current, whose structure are divided into integral and independent types. Whats more, it has low cost, more energy saving than similar products, novel structure, easy operation, safe using, reliable performance and other features.

The cylinder, liner, media, silo board, the discharge grate board of Chinaware Ball Mills rotating part, so the wear-resistant parts are more wearable and the maintenance cost is low. At the same time, the operation of full hydraulic makes the using and automation much easier, as well as greatly increases the reliability and longevity.