sbmzhcn Blog find crusher and grinding mill in China

September 30, 2010

ould 'Goldilocks' planet be just right for life?

Filed under: other — Tags: , — sbmzhcn @ 8:10 pm

An artist rendering by Lynette Cook, National Science Foundation, shows the new planet on the right.

WASHINGTON – Astronomers say they have for the first time spotted a planet beyond our own in what is sometimes called the Goldilocks zone for life: Not too hot, not too cold. Juuuust right.

Not too far from its star, not too close. So it could contain liquid water. The planet itself is neither too big nor too small for the proper surface, gravity and atmosphere.

It’s just right. Just like Earth.

"This really is the first Goldilocks planet," said co-discoverer R. Paul Butler of the Carnegie Institution of Washington.

The new planet sits smack in the middle of what astronomers refer to as the habitable zone, unlike any of the nearly 500 other planets astronomers have found outside our solar system. And it is in our galactic neighborhood, suggesting that plenty of Earth-like planets circle other stars.

Finding a planet that could potentially support life is a major step toward answering the timeless question: Are we alone?

Scientists have jumped the gun before on proclaiming that planets outside our solar system were habitable only to have them turn out to be not quite so conducive to life. But this one is so clearly in the right zone that five outside astronomers told The Associated Press it seems to be the real thing.

"This is the first one I’m truly excited about," said Penn State University’s Jim Kasting. He said this planet is a "pretty prime candidate" for harboring life.

Life on other planets doesn’t mean E.T. Even a simple single-cell bacteria or the equivalent of shower mold would shake perceptions about the uniqueness of life on Earth.

But there are still many unanswered questions about this strange planet. It is about three times the mass of Earth, slightly larger in width and much closer to its star — 14 million miles away versus 93 million. It’s so close to its version of the sun that it orbits every 37 days. And it doesn’t rotate much, so one side is almost always bright, the other dark.

Temperatures can be as hot as 160 degrees or as frigid as 25 degrees below zero, but in between — in the land of constant sunrise — it would be "shirt-sleeve weather," said co-discoverer Steven Vogt of the University of California at Santa Cruz.

It’s unknown whether water actually exists on the planet, and what kind of atmosphere it has. But because conditions are ideal for liquid water, and because there always seems to be life on Earth where there is water, Vogt believes "that chances for life on this planet are 100 percent."

The astronomers’ findings are being published in Astrophysical Journal and were announced by the National Science Foundation on Wednesday.

The planet circles a star called Gliese 581. It’s about 120 trillion miles away, so it would take several generations for a spaceship to get there. It may seem like a long distance, but in the scheme of the vast universe, this planet is "like right in our face, right next door to us," Vogt said in an interview.

That close proximity and the way it was found so early in astronomers’ search for habitable planets hints to scientists that planets like Earth are probably not that rare.

ball mill

Vogt and Butler ran some calculations, with giant fudge factors built in, and figured that as much as one out of five to 10 stars in the universe have planets that are Earth-sized and in the habitable zone.

With an estimated 200 billion stars in the universe, that means maybe 40 billion planets that have the potential for life, Vogt said. However, Ohio State University’s Scott Gaudi cautioned that is too speculative about how common these planets are.

Vogt and Butler used ground-based telescopes to track the star’s precise movements over 11 years and watch for wobbles that indicate planets are circling it. The newly discovered planet is actually the sixth found circling Gliese 581. Two looked promising for habitability for a while, another turned out to be too hot and the fifth is likely too cold. This sixth one bracketed right in the sweet spot in between, Vogt said.

With the star designated "a," its sixth planet is called Gliese 581g.

"It’s not a very interesting name and it’s a beautiful planet," Vogt said. Unofficially, he’s named it after his wife: "I call it Zarmina’s World."

The star Gliese 581 is a dwarf, about one-third the strength of our sun. Because of that, it can’t be seen without a telescope from Earth, although it is in the Libra constellation, Vogt said.

But if you were standing on this new planet, you could easily see our sun, Butler said.

The low-energy dwarf star will live on for billions of years, much longer than our sun, he said. And that just increases the likelihood of life developing on the planet, the discoverers said.

"It’s pretty hard to stop life once you give it the right conditions," Vogt said.

Swanky new Vegas hotel’s ‘death ray’ proves inconvenient for some guests

Filed under: news — Tags: , , — sbmzhcn @ 1:05 pm

And here you thought bedbugs were the biggest source of anxiety for hotel guests.image

Yes, guests at Vdara hotel in Las Vegas now have something else to worry about: being burned alive by the glare of the building’s "death ray."

What the heck’s a "death ray," you ask? Well, first off, it’s not as deadly as it sounds, since no one has actually died from it — at least not yet. But according to the U.K. Daily Mail, the powerful beams of Nevada sunlight reflecting off the glass hotel onto sections of the hotel’s swimming pool area have burned some guests and have melted plastic bags.

The building’s concave design creates a sort of magnifying-glass effect. The hotel’s designers reportedly anticipated that ill-situated humans might experience some discomfort courtesy of the building’s blinding glare, so they placed a film over the glass panes of its many windows. Obviously that didn’t quite do the trick. So for now the hotel is placing larger umbrellas in the pool area while designers try to come up with another remedy.

[Related: Treehouses, schools, undersea lodges among craziest hotels]

According to the Las Vegas Review-Journal, the hotel’s employees coined the term "death ray" to describe the intense reflection. Reports of the glare have also enhanced the hotel’s public profile, though almost certainly not in the way its owners would like; Yahoo! searches for Vdara have spiked by nearly 19,000 percent in the past 24 hours.

It turns out that Vdara isn’t the only building out there creating intense heat and glare for hapless passersby. Gordon Absher, a spokesman for MGM Resorts International, which owns Vdara, told the Review-Journal that in Las Vegas, the AdventureDome at Circus Circus and the Mandalay Bay produce "hot spots" that some guests have actually sought out, believing the spots will aid tanning regimens. In Los Angeles, the Frank Gehry-designed Walt Disney Concert Hall produced such a harsh glare that it heated nearby homes, forcing residents to blast their air conditioners high above their customary capacities in order for the residents to keep cool.

[Build your own death ray — and a dozen more mad-scientist devices you can make at home]

Bill Pintas, a Chicago attorney, told the Daily Mail that he experienced the harsh glare of the death ray firsthand during a recent Vdara stay. Pintas reported that as he lounged out by the pool, his head suffered a sensation he likened to a "chemical burn." He added, "Within 30 seconds, the back of my legs were burning."

[Even more on death rays: The mystery of Nikola Tesla’s missing weapon]

In another interview, Pintas said: "I was effectively being cooked." Thankfully, he returned home alive. Still, his skin was burned and his hair was singed — disproving the old saying that whatever happens in Vegas stays in Vegas.

ould 'Goldilocks' planet be just right for life?

Filed under: Astronomy,search — sbmzhcn @ 12:27 pm

An artist rendering by Lynette Cook, National Science Foundation, shows the new planet on the right.

WASHINGTON – Astronomers say they have for the first time spotted a planet beyond our own in what is sometimes called the Goldilocks zone for life: Not too hot, not too cold. Juuuust right.

Not too far from its star, not too close. So it could contain liquid water. The planet itself is neither too big nor too small for the proper surface, gravity and atmosphere.

It’s just right. Just like Earth.

"This really is the first Goldilocks planet," said co-discoverer R. Paul Butler of the Carnegie Institution of Washington.

The new planet sits smack in the middle of what astronomers refer to as the habitable zone, unlike any of the nearly 500 other planets astronomers have found outside our solar system. And it is in our galactic neighborhood, suggesting that plenty of Earth-like planets circle other stars.

Finding a planet that could potentially support life is a major step toward answering the timeless question: Are we alone?

Scientists have jumped the gun before on proclaiming that planets outside our solar system were habitable only to have them turn out to be not quite so conducive to life. But this one is so clearly in the right zone that five outside astronomers told The Associated Press it seems to be the real thing.

"This is the first one I’m truly excited about," said Penn State University’s Jim Kasting. He said this planet is a "pretty prime candidate" for harboring life.

Life on other planets doesn’t mean E.T. Even a simple single-cell bacteria or the equivalent of shower mold would shake perceptions about the uniqueness of life on Earth.

But there are still many unanswered questions about this strange planet. It is about three times the mass of Earth, slightly larger in width and much closer to its star — 14 million miles away versus 93 million. It’s so close to its version of the sun that it orbits every 37 days. And it doesn’t rotate much, so one side is almost always bright, the other dark.

Temperatures can be as hot as 160 degrees or as frigid as 25 degrees below zero, but in between — in the land of constant sunrise — it would be "shirt-sleeve weather," said co-discoverer Steven Vogt of the University of California at Santa Cruz.

It’s unknown whether water actually exists on the planet, and what kind of atmosphere it has. But because conditions are ideal for liquid water, and because there always seems to be life on Earth where there is water, Vogt believes "that chances for life on this planet are 100 percent."

The astronomers’ findings are being published in Astrophysical Journal and were announced by the National Science Foundation on Wednesday.

The planet circles a star called Gliese 581. It’s about 120 trillion miles away, so it would take several generations for a spaceship to get there. It may seem like a long distance, but in the scheme of the vast universe, this planet is "like right in our face, right next door to us," Vogt said in an interview.

That close proximity and the way it was found so early in astronomers’ search for habitable planets hints to scientists that planets like Earth are probably not that rare.

ball mill

Vogt and Butler ran some calculations, with giant fudge factors built in, and figured that as much as one out of five to 10 stars in the universe have planets that are Earth-sized and in the habitable zone.

With an estimated 200 billion stars in the universe, that means maybe 40 billion planets that have the potential for life, Vogt said. However, Ohio State University’s Scott Gaudi cautioned that is too speculative about how common these planets are.

Vogt and Butler used ground-based telescopes to track the star’s precise movements over 11 years and watch for wobbles that indicate planets are circling it. The newly discovered planet is actually the sixth found circling Gliese 581. Two looked promising for habitability for a while, another turned out to be too hot and the fifth is likely too cold. This sixth one bracketed right in the sweet spot in between, Vogt said.

With the star designated "a," its sixth planet is called Gliese 581g.

"It’s not a very interesting name and it’s a beautiful planet," Vogt said. Unofficially, he’s named it after his wife: "I call it Zarmina’s World."

The star Gliese 581 is a dwarf, about one-third the strength of our sun. Because of that, it can’t be seen without a telescope from Earth, although it is in the Libra constellation, Vogt said.

But if you were standing on this new planet, you could easily see our sun, Butler said.

The low-energy dwarf star will live on for billions of years, much longer than our sun, he said. And that just increases the likelihood of life developing on the planet, the discoverers said.

"It’s pretty hard to stop life once you give it the right conditions," Vogt said.

Swanky new Vegas hotel’s ‘death ray’ proves inconvenient for some guests

Filed under: Uncategorized — sbmzhcn @ 2:28 am

September 29, 2010

Google takes the p*ss out of search results

Filed under: Новости — Tags: , , — sbmzhcn @ 10:24 pm

INTERNET SEARCH LEADER Google’s Instant Search is unlikely to become the online discovery tool of choice for some web surfers after they find out that certain interests are a no-no.

It might come as a surprise to some readers, but apparently the Internet is full of foul and inappropriate material. It appears that in developing Instant Google had this at the front of its mind and has set up the software accordingly. As such it includes a list of words and phrases for which Instant results are not provided.

Google has not released the list itself, but any bored or possibly frisky individual might have already found some of their own. For example, we tried ‘Google is evil’ and got nothing but a blank glare, sorry, blank page, from the firm. Our search was pretty tame though, and there are apparently many, many more unwelcome terms.

Fortunately, because we were getting bored of typing out playground slang, a full list is being made available online on the 2600.com website.

The list of words reads like an angry blogger’s tag cloud and includes maiden aunt offending phrases like, ‘nipples’, ‘dirty pillows’, ‘camel toe’, ‘women rapping’ and, um, ‘hairy’.

What Google has against female hip hoppers we don’t know, but some of the omissions make great sense. For example, racist terms are sidelined, as is the blush-inducing, grandma shocking, ‘motherf**ker’.

The other word you are unlikely to hear said by passing vicar – the one that begins with ‘c’ – is also a big no no. Which again is fair, unless you are penning a letter to your bank manager and hoping to do some spell checking.

A lot of the words are urban slang, so for example, camel podiatrists will find searching for information about their wards a less than Instant process, as will anyone looking for work in a factory that packs fudge. Unemployed altruists looking for a position as a missionary will also be stymied, and anyone with a rusty trombone that needs polishing will have to go through a laborious, old style Google search process.

Anyone unwise enough to ‘Google’ Jamie Oliver, the tedious cook that used to go under the moniker of ‘Naked Chef’, will also be disappointed, as any mention of the word ‘naked’ is hit with an Instant hammer blow.

We’ve asked Google for confirmation of this, or even a look at its internal list ourselves, but so far it has not been forthcoming.

crusher machine

Want or Need:我们都“需要”少一点“欲望”

Filed under: life — Tags: , , , — sbmzhcn @ 9:50 pm

你想得到什么?然而你真正需要的是什么?或许,下面这组图能给你一些启发。

是欲望还是真的需要?

www.u148.net

我“音乐”故我在,只要是还能够播放出美丽音乐,再老的机器都应该保留。

www.u148.net

不断努力尝试是件很累的事,然而却是唯一通向成功的道路。

www.u148.net

别让罐装食品填满你的身体。

www.u148.net

我每月的账单告诉我,买一台“土”电话是聪明的选择。

www.u148.net

金钱换不来关爱,亲自买回来的培根火腿远大过一堆冰冷的现金。

www.u148.net

需要精神食粮,而非无聊的八卦。

www.u148.net

有时候,我宁可防火烧房子,也不愿在屁股后面点火。(别总是去解决燃眉之急)

www.u148.net

要么和钱说拜拜,要么和世界拜拜。

www.u148.net

喝水也要讲求科学。(膀胱会受不了)

www.u148.net

我对自己得到的一切表示感激

www.u148.net

耐力不是我的品格。(要学会隐忍)

www.u148.net

我很遗憾没有多吃点蔬菜水果

www.u148.net

勤动手

www.u148.net

牙齿腐烂vs笔记本腐烂

www.u148.net

少吃糖浆

www.u148.net

没了脉搏,失了机会。

www.u148.net

知道自己喜欢什么,不代表只喜欢自己知道的。

www.u148.net

吃的简单,让生命不简单。

www.u148.net

只工作不娱乐会让你看上去更显苍白

crusher jaw crusher

10 Signs The U.S. Is Losing Its Influence In The Western Hemisphere

Filed under: Новости — Tags: , — sbmzhcn @ 9:33 am

We won’t be the alpha dog in the western hemisphere forever. 

Even if the U.S. hadn’t crashed into a financial crisis, there are demographic, material, and political forces that have been spreading power around the Americas for decades.

Brazil is first among the BRICs (Brazil, Russia, India, and China) — four economies that are supposed to overtake the six largest Western economies by 2032.

Mexico is first among the MAVINS (Mexico, Australia, Vietnam, Indonesia, Nigeria, and South Africa) — six economies we expect to blow away expectations and become leading powers in their regions relatively soon.

Canada and Venezuela are oil powers of the distant future.

Peru and Chile are sitting on a fortune of metals and minerals.

All these countries are cranking up, while America faces plenty of fiscal and demographic problems at home.

Here are Signs the U.S. Is Losing Its Influence In Its Own Backyard:

Our most powerful regional ally–Brazil–refuses to follow our orders on Iran

Hillary Clinton went to Brazil to beg support for sanctions against Iran and came away empty handed.  Now the UN is counting on Brazil, which is friendly with America and Iran, to lead nuclear diplomacy.

The World’s Richest Man is now a Mexican, not an American.

For the first time in 16 years, the World’s Richest Man is not an American. Carlos Slim, worth $54 billion, is the first Latin American to hold that title and one of many emerging market billionaires to eclipse the U.S.

Three years after a US financial crisis, Latin America is again growing rapidly. The U.S.? Not so much…

Compare this to what happened during the Great Depression. Latin America was devastated when U.S. investment dried up and the export market soured in the 30s. A League of Nations report said Chile, Peru, and Bolivia suffered the world’s worst depression.

Today is quite different. Brazil, Argentina, and Mexico have led a buoyant recovery from the global recession, according to Reuters. The regional economy is expected by the UN to grow 4.3 percent in 2010. If the American consumer remains weak, Latin American exports will move elsewhere.

Chile produces 300% more copper than America–the former world leader in copper production
America used to lead the world in copper production. We produced 49% of the world’s copper in 1929, according to this article from the archives.  Today we produced 1.2 million tonnes yearly, compared to 5.4 million tonnes in Chile.

Brazil now produces over four times as much iron ore as the U.S.. We used to lead that industry, too.

America once led the world in iron mining. In 1892 we discovered the world’s largest mine at the Great Lakes Mesabi Range. It was a wellspring for America’s industrial might and the foundation of the rust belt.

Now we claim reserves at 2,100 mt. Seven countries claim higher reserves, including Brazil at 8,900 mt.  We produce only 54 mt yearly, while Brazil produces 250 mt.

Canada and Venezuela will pass the U.S. in oil production in the next decade

America produces around 9 million barrels of oil a day. Venezuela and Canada each produce around 3 million.  But America’s reserves are 21 billion barrels and may last less than a decade. Our oil-rich neighbors claim 99 billion bbl and 178 billion bbl, respectively, and will keep producing oil into the distant future.

Now Brazil exports over twice as much beef as we do

America used to lead the world in beef production. Although we still do, America exports only 800,000 mt of beef per year. Brazil exports 2,200,000 mt.  Here’s some ironic excerpts from a 1911 NYT article: "American-Canadian syndicate to have world’s largest beef plant in Brazil… The chilled beef industry has never been tried before in Brazil and has only recently gotten under way in Argentina."

Brazil is now a critical partner for Russia, India, and China

The acronym coined by Goldman Sachs to describe the four key emerging powers has taken on a life of its own.  Brazil, Russia, India, and China have held several summits and even discussed making a supranational currency — that would pull the rug out from the U.S. dollar.

What’s important here is that global emerging powers have good relations and are inclined to work together. For instance, China just signed major contracts to build factories and a high-speed rail in Brazil.

Brazil, Canada, and Mexico all invest a greater share of GDP in clean energy

A Pew survey found that Brazil invests 0.37% of its economy in clean energy. Canada invests 0.25% and Mexico invests 0.14%.  America is eleventh in the world at 0.13%.

Hugo Chavez is still in power

The CIA has a notorious history of interventions in Latin America, supposedly targeting Jacobo Arbenz Guzmán, Fidel Castro, Manuel Noriega, Rios Montt, Che Guevara, and many others.  But they haven’t stopped Hugo Chavez from railing against the United States for years. Clearly America has adopted a more passive regional strategy.

crusher machine

Vertical roller mill hydraulic system of the proper use and maintenance

Vertical roller mill hydraulic system of the proper use and maintenance

With China’s rapid economic soaring, highway, railway and other large projects continue to be launched, the market demand for high quality cement increased, which gives the cement manufacturer has brought great business opportunities, the device is basically a full load 24 hours of continuous operation, in particular, an important part of the device, one of the Vertical roller mill, as the main driving force is provided by the hydraulic system, while the hydraulic system is relatively delicate, proper use and maintenance, is to protect the premise of their normal work.

Hydraulic system hydraulic components of the role and functions:

  • 1. Oil meter oil: The system can accurately understand the height of liquid within the tank, easy to refuel at any time, to prevent the pump suction air. Thermometer can be approximated to know the temperature of the oil tank.
  • 2. Oil filter: oil pump through which absorb the oil tank, oil can be filtered out the larger particles to protect pumps, and the entire hydraulic system is not contaminated.
  • 3. Air filter: a device to the fuel tank through which fuel can be oil in the filter out larger particles, oil pollution prevention system. Tank while the system work and the atmosphere Unicom mouth.
  • 4. Pump: the power system components, they absorb the oil, the oil discharge pressure. Converts electrical energy to hydraulic energy components. This type of system are generally high-pressure gear pump.
  • 5. High-pressure oil filter: oil pump with high standards of cleanliness through it were the oil pump control components and systems implementation components. Ensure the cleanliness of the system to extend the system to control components and implementation of the component service life.
  • 6. Relief valve: it controls the system’s rated working pressure to ensure the safety of the system can be designed under the pressure of work.
  • 7. Manual valve: changing the system oil flow direction, thus changing the direction of movement of the actuator.
  • 8. Check valve: in this system play the role of locking and packing to ensure the implementation of components and the pressure accumulator continuing.
  • 9. Safety valve: control the implementation of components and sub-circuit in the external force, the pressure does not exceed the safety value set to ensure the safe use of the hydraulic components.
  • 10. Cut-off valve (plate): fast unloading, the system needs to perform shunt components and the pressure relieved accumulator, turn the valve can be quickly achieved.
  • 11. Two-way Valves: Screw and balance function; can ensure the maintenance of roller cylinder in turn, may at any time when the reducer to stay in any position, but also to ensure the smooth operation of fuel tank rollover, would not result in equipment damage due to stall.

The regulation of hydraulic system

The main hydraulic system set up two relief valve oil on the road, a group called the relief valve, which determines the rated working pressure; the other as safety valves, which ensure the implementation of components and sub-circuit in the external force , the pressure does not exceed set safety value. System in the factory of the pressure relief valve has been adjusted by the relevant technical requirements set, the user used in the actual working conditions, such as no need Please do not adjust. When the hydraulic system can not meet the Vertical roller mill‘s output power when used under the guidance of the relevant professionals in the system configuration allows the conditions, while adjusting the two valves can improve the working pressure, increase system output power (system factory Press the standards set pressure relief valve set pressure relief valve higher than the 3-4 Mpa). Specific regulation as follows:

  • 1. Loosen the lock nut relief valve, start the motor, pulling the lever for valve (ie valve stem in the left frame), disc drive cylinder piston rod recovery, slowly tighten the relief valve adjustment bar, observation tank recovery situation, to meet the needs of the Vertical roller mill, at which point the system pressure gauge displays the actual value of work pressure, the pressure is stable after you record the pressure.
  • 2. Shut down all the relief valve will tighten, loosen the valve lock nut, start the motor, according to just pressure, it is set pressure safety valve (pressure than the record high 3-4Mpa). Tighten the valve nut.
  • 3. According to records of the pressure relief valve set to re-adjust and tighten the pressure relief valve nuts.

Hydraulic equipment system in the Vertical roller mill is an important component as well as failure of one of the most vulnerable link in the system in strict accordance with the provisions of the instructions for use, proper use and maintenance of hydraulic systems is to reduce the system failure, system trouble-free use of extended time, security production, improve the effectiveness of protection.

cement vertical roller mill

Filed under: quarry crusher,vertical roller mill — sbmzhcn @ 3:36 am

For the cement industry were 30,25,20,10,8.8 tons of annual production and other industries use to meet the users of different materials with different yield and grinding requirements. At the same time I also have fine vertical grinding mill, the State Development Center has fine vertical cement mill as the "Eighth Five-Year" period focused on promoting the application of high efficiency, new energy-saving products.
The working principle of vertical roller mill vertical roller mills
1, the main structure and function
Roller is the main material for rolling mill parts. Mill built with two pairs of roller, each pair of rollers mounted on the same shaft, rotating at different speeds.
Disc fixed to the reducer output shaft, the upper part of the disc material bed, the bed material a circular groove.
PRM-type separator mainly composed of vertical roller mill ,roller, disc, compression device, reducer, motor, housing and other components.
Fineness of separation is an important component of the decision, which consists of adjustable speed drives, rotor, guide blades, housing, meals, fighting off the cone material, composed of the outlet, and the separator works similar.
Pressure device is called the grinding pressure of the components provided by the high pressure oil station, hydraulic cylinder, rod, storage and other components, able to exert enough pressure roller grinding of materials.
2, the working principle of vertical roller mill
The material flow through the separator, in the role of guide vanes and the rotor, the coarse material to the disc from the hopper cone, the fine powder with a mill with air, dust collection device in the system to collect, is the product, the material in the contact process with the gas being dried to the required product water, by adjusting the angle and the wind guide vane separator rotor speed can be different fineness of the product.
Motor through reducer drive the disc rotation, the current hot air from the air inlet into the mill, the material from the feed opening falls on the central disc; the centrifugal force, material to the disc edge and moved across the ring groove on the disc by the grinding roll rolling and grinding, to the edge of the disc, moving through the air with the wind at the starting of large particles falling back to disc on the direct re-grinding.
Compared with the ball mill, vertical roller mill with the following features;
Compared with the cement vertical mill to mill the advantage is obvious, in order to establish a more intuitive description of the characteristics of MPS vertical mill, following the annual output of 10 tons of cement and production of raw material preparation system, for example, compared with the two HRM vertical mill and ball mill kinds of program indicators.
Grinding efficiency; drying large capacity; into the grinding material Liaodu large, medium and large vertical mill can save two broken; products, chemical stability; stars are homogeneous gradation, product Liaoduo uniformity is conducive to burning ; process is simple; low noise, less dust, the operating environment clean; metal loss, high utilization; use of the economy.
Assuming an annual output of 10 million tons of cement in order to meet production needs, may use the following two options:
Programme 1: HRM1300 vertical mill grinding system
Programme 2: @ 2.2 × 6.5 米 closed-circuit grinding system
Table II installed capacity of the two programs, technical and economic indicators in Table III.
As can be seen from the above comparison, the choice of vertical roller mill to reduce annual operating costs only 380,200 yuan, and the level of technology and products to improve yield, save energy, improve the operating environment, reducing noise and pollution, and enhance ability to adapt to other aspects of the play is not assess the long-term benefits.

about vertical roller mill

LM series Vertical Roller Mill is an ideal equipement which have integrated the crushing,dry,powder grinding,and graded deliver into a single whole .And it can be used to crush the lump , particle and powder raw materials to the required powder materials .And now LM series Vertical Mill has found its extensive application in the field of Cement, electric power, metallurgy, chemical industry, non-metallic mineral,etc.
main structures of LM series Vertical Roller Mill are including the classifier ,roller ,plate,pressure ,reducer,motor,shell equipement and so on.The seperator is a kind of high-efficient and energy-saving equipement .And the roller is a kind of spare parts used to grind and crush the materials .The plate is installed on the output axis of the reducer ,which is the place the materials is crushed by the roller.And the pressure equipment is a kind of spare parts providing the pressure to the grinding roller ,thus crushing the materials .
During the operation,the motor wil drive the plate to rotate by the reducer and then the materials will fall down on the central place of the plate from the inlet by the qir-locking feeder .While at the same time ,the hot air will enter the grinder from the air inlet.With the rotation of the plate ,the materials will move to the edge of the plate by the centrigugal force and the materials will received the pressure from the roller and be crushed when it passes the circle ring sink on the plate.The crushed materials will be brought away by the high speed air and the big size will fall down on the plate and be reginded .And the coarse powder will fall down from the cone hopper and then repeat this kind of process when materials in the air stream passes the upper seperator by the effect of the rotors.And during the process ,the fine powder will flow out with the air stream .vertical roller mill
By the dust catcher ,the final products will be collected .The materials with moisture will be dry when it contact with the hot air stream.By adjusting the temperature of the hot air,we can satisfy materials with various moisture degree ,thus achieving the required products moisture.By the seperator ,we can also achieve the required coarse and fine degree of the products .

Older Posts »

Powered by WordPress

Optimization WordPress Plugins & Solutions by W3 EDGE