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"How to Choose Driver



maogolf
member
Posts: 3


"How to Choose Driver

For one to start off golfing she must select the golf club he or she is to work with although playing. If you have [url=http://www.vggolf.com/614-Ping-K15-Driver.html]Ping K15 Driver[/url] you can swing more flexibility A set of 14 golf equipment in 3 types; metal, wooden and putters are available for a golfer. For a rookie only half the quantity of the particular arranged is required. The price tag on acquiring fresh golf sets is costly therefore while introducing yourself to the ability of playing golf it is advisable to purchase used golf clubs to minimize the cost as you grow introduced the game. You may take [url=http://www.vggolf.com/169-Ping-G15-Driver.html]Ping G15 Driver[/url] into consider Having made this choice you now start choosing the used-golf night clubs first of all. One can check out the particular specialist golf players who are acquiring golf sets constantly to suit their own need. Additionally you can find rental stores to use golf clubs. If you have [url=http://www.vggolf.com/181-Ping-G15-Fairway-Wood.html]Ping G15 Fairway Wood[/url] you can control your golf ball much better Getting manufactured that decision, it is important to take a look at your golf clubs before buying all of them and locate a golf iron arranged to suit your current swing, entire body along with video game. Most of all, allows you to experience self-confident by using this. Then now you can obtain aged golf clubs as well as use."


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POSTED ON: March 16, 2012 @ 19:11 GMT -7




hongxing
member
Posts: 18


<h1>How to Purchase Sand Makers</h1>
<p>  The rapid growth of the domestic economy helps the developing China become a pivotal country in the world. The improvement of people’s consumption, the pursuit of a higher quality of life, and a lot of infrastructures make China become the world's largest building materials producing and consuming country. Infrastructure cannot be separated from the sand. But as for the national emphasis on environmental protection, the collection of natural sand is limited more and more strictly because of the cost. According, the artificial sand has earned more attention, so investing on the sand making production line is much timing. Practitioners of mining machinery equipment in China are at least hundreds of thousands of people, and businesses and middlemen can reach tens of thousands, so how to choose a <a href="http://www.mine-crusher.com/sandmaker.htm" title="sand maker">sand maker</a> with low price, good quality, and guaranteed after-sale service becomes very important. <br />
  First of all, it must be cleared that the price cannot decide anything. We are used to put price in the first place in our daily pursuing consumption. What we have done often hurts manufacturers, and finally ourselves. Many machinery manufacturers choose to reduce cost from materials instead of working hard to improve their products. Those kinds of manufacturers only focus on current benefits, and they cannot live for a long time. Naturally, problems will happen to accessories and after-sale service. So when you want to buy sand makers or sand making equipments, do not just look at the price of the devices, you should choose several companies and compare their scale, the strength, service, and their prospects.<br />
  Secondly, you can compare several companies via the Internet mainly to see the scene of their shipments, and job site. Delivery site and job site can generally see the plant and the factory area, and its operating environment. Look at his business activities, so that you can know the strength of their company, and also to understand the corporate culture from the side way. The age of information brings us much convenience, but also some false information. So we need to visit the industry by ourselves to check their strength and construction to find out their investment and production capacity. What’s more, you can also communicate with their technical worker to learn some professional knowledge to help you buy a suitable sand maker. <br />
  The final step is to understand the use of the machinery and equipments. Let the manufacturers recommend one to two users who are using the factory’s machinery and equipment to learn the operating condition of their machines closely. Finally, you will get the most suitable sand making equipments.</p>


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POSTED ON: September 6, 2012 @ 01:46 GMT -7




hongxing
member
Posts: 18


How to Purchase Sand Makers

The rapid growth of the domestic economy helps the developing China become a pivotal country in the world. The improvement of people’s consumption, the pursuit of a higher quality of life, and a lot of infrastructures make China become the world's largest building materials producing and consuming country. Infrastructure cannot be separated from the sand. But as for the national emphasis on environmental protection, the collection of natural sand is limited more and more strictly because of the cost. According, the artificial sand has earned more attention, so investing on the sand making production line is much timing. Practitioners of mining machinery equipment in China are at least hundreds of thousands of people, and businesses and middlemen can reach tens of thousands, so how to choose a sand maker with low price, good quality, and guaranteed after-sale service becomes very important.
First of all, it must be cleared that the price cannot decide anything. We are used to put price in the first place in our daily pursuing consumption. What we have done often hurts manufacturers, and finally ourselves. Many machinery manufacturers choose to reduce cost from materials instead of working hard to improve their products. Those kinds of manufacturers only focus on current benefits, and they cannot live for a long time. Naturally, problems will happen to accessories and after-sale service. So when you want to buy sand makers or sand making equipments, do not just look at the price of the devices, you should choose several companies and compare their scale, the strength, service, and their prospects.
Secondly, you can compare several companies via the Internet mainly to see the scene of their shipments, and job site. Delivery site and job site can generally see the plant and the factory area, and its operating environment. Look at his business activities, so that you can know the strength of their company, and also to understand the corporate culture from the side way. The age of information brings us much convenience, but also some false information. So we need to visit the industry by ourselves to check their strength and construction to find out their investment and production capacity. What’s more, you can also communicate with their technical worker to learn some professional knowledge to help you buy a suitable sand maker.
The final step is to understand the use of the machinery and equipments. Let the manufacturers recommend one to two users who are using the factory’s machinery and equipment to learn the operating condition of their machines closely. Finally, you will get the most suitable sand making equipments.


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POSTED ON: September 6, 2012 @ 01:47 GMT -7




hongxing
member
Posts: 18


The kinetic energy of steel ball plays an important role in the ball mill. No matter what kind of movement the steel ball do, the kinetic energy of moving steel ball is always changing. Now, let’s analyze the change of kinetic energy in a cycle of movement.
The mechanical energy of steel ball is zero, when it stays motionless at the throat of ball mill. When the ball mill raises the steel ball up depending on the friction with cylinder, the ball starts to move, and has kinetic energy. In this process, the grid power is transferred into the mechanical energy of the ball mill. This mechanical energy will be passed to steel ball through the movement. When the cylinder of Ball Mill brought the ball to the highest position, the ball will get the maximum gravitational energy. Simultaneously, the steel balls still have the initial kinetic energy. When the steel balls fall or slip down from the highest position, the gravitational potential energy begins to decrease, and the kinetic energy begins to increase. In this process, the mechanical energy of steel balls is transferred into kinetic energy. Before the moment the steel ball falls against ore block, the mechanical energy of the steel ball is completely converted to kinetic energy. www.hxjq-crushers.com/2.htm The kinetic energy released by the striking force acts Nugget. In this process, the steel balls deform, crack and expand the capacity as well as the formation of new surface. So far is the end of a movement cycle of the steel balls. The steel balls will be in the lowest position of the cylinder, and gravitational potential energy is zero. Then, they will be taken up again by the cylinder to start the second cycle of movement. They will repeat the cycle again and again.
We can see from the change of energy of steel balls in a cycle that from the physical point of view, steel balls are the carrier of crushing effect, which are used to impact and break the ore; in terms of the transference of energy, the steel ball is the medium of energy transferring. Steel balls transfer the mechanical energy of cylinder into their own energy, and then transfer to ore by crushing and impacting. So, the reason why we say steel balls are the medium of grinding ore is that they are the medium to transfer the energy and crush ore.


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POSTED ON: September 7, 2012 @ 01:04 GMT -7




hongxing
member
Posts: 18


Inevitable Vibrating Feeder

Vibrating feeder is reciprocating machine. Vibrating feeder in the production process in mining is used to feed the massive, granular materials from storage bin or other material storage equipment to material receiving equipment evenly, periodically, and continuously. In the production line of sand making, vibrating feeder can be used to feed crushing equipments evenly and continuously, and to make course separation, just like valve to adjust the flowing volume of liquids. Vibrating feeder is widely used in metallurgy, coal mining, mineral processing, building materials, chemicals, abrasives and other industries for crushing and screening plants, and it is an inevitable equipment in the actual automated production line.
Vibrating feeder can be divided into three kinds according the movement of its accessories: ① linear vibratory feeder, such as belt feeder, apron feeder, and scraper feeding machine; ② Rotary feeder, such as chain feeding machine, disc feeding machine, screw feeder and impeller feeder; ③ reciprocating feeder, such as vibrating feeders, reciprocating feeding machine.
Factors you need to consider when you select a vibrating feeder include feeding capacity and its adjustment range, feeding amount accuracy, characteristics of materials, installation, dimensions, safety and reliability, environmental protection conditions, its own weight, etc. Vibrating Feeder is simple in structure, and easy to operate. www.hxjq-crushers.com/2.htm It doesn’t need lubricating, and has low energy consumption. Vibrating feeder can adjust the feeding amount of ore evenly, and is always used for soft materials. Configuration should be designed according to the requirements of the equipment performance to minimize material tank pressure required by the manufacturer. Bunker effective discharge port shall not be greater than one-fourth of the slot width, and material flow speed should be controlled to 6-18m / min feeding capacity. For larger materials, a sufficient height Elam mine board should be set at the discharging port at the bottom of the storage bin. The board shall not be fixed in the tank to avoid influencing the capacity of vibrating feeder. The back-wall obliquity should be designed to 55-65 degrees to make sure the materials can be discharged smoothly.


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POSTED ON: September 7, 2012 @ 01:05 GMT -7




hongxing
member
Posts: 18




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POSTED ON: September 7, 2012 @ 01:06 GMT -7




hongxing
member
Posts: 18


The jaw crusher is mainly used in many industries such as mining, metallurgy, building materials, highway, water conservancy and chemical industry to crush a variety of materials with breaking strength of not more than 320 Mpa. Jaw crusher has a high crushing ratio, uniform particle size, and no dead zone, which increases the feeding capacity and output. It is the first choice for the crusher equipment because of its simple structure, reliable operation, and low noise. The crushing machine is mainly driven by the motor belt and pulley. The mobile jaw moves up and down by the eccentric shaft. When the movable jaw rises, the angle between toggle plate and moving jaw becomes larger, thus promoting the moving jaw plate close to the fixed jaw plate. Its material is crushed or split pieces. When the movable jaw goes down, the obliquity between the toggle plate and moving jaw angle becomes smaller. The movable jaw plate trolley, under the action of the spring, leaves the fixed jaw plate, and at this time, the crushed materials have been discharged from the crushing port.
Now in foreign countries in the field of crushing and milling equipment there are three development objectives. Firstly, they adopt a new design concept, break the conventional design ideas, innovate the technology, and produce larger crusher that can implement online real-time monitoring. http://www.hxjq.com/zh-CN/ They think that it is very important to compete with emerging economies. Secondly, they increase automation and reduce the dependence on human. Finally, they reduce energy consumption and improve crushing efficiency. The single toggle jaw crusher performance mainly depends on motion state of points in the surface of moving jaw plate, such as velocity, acceleration and track, etc. And these characteristics depend on position of points in the design region. Track performance values change with parameters of crank rocker organization. Body size includes the length of bars, relative location of the rack and is the key to determine advantages and disadvantages of machine performance.
Since the 1980s, the research and development of the jaw crusher in China have got great achievements. On the basis of fully absorbing the features of foreign products, and according to our national conditions, we develop a lot of advanced and efficient equipments. By lowering the hanging height of movable jaw and improving the crushing ratio, the horizontal stroke of the movable jaw and the production capacity are increased. The mechanical performance is improved greatly.


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POSTED ON: September 8, 2012 @ 01:18 GMT -7




hongxing
member
Posts: 18


With the rapid development of infrastructure construction and increasing attention being paid to environmental protection, there is a lack of the natural sand used to meet the requirements of engineering construction, so the use of manufactured sand (MS) to prepare concrete has become a trend.
MS production process can be divided into the following phases: Block stone →Coarse crushing →Intermediate crushing →Fine crushing →Screening →Powder removal →MS. The equipment commonly used in the coarse crushing is the jaw crasher. The equipment commonly used in intermediate crushing is the overpressure turbine crusher and impact crasher is used in fine crushing. With regards to the control process of powder content, we often use the dry process method with this process the grading machine is used, whilst wheel sand washer is recommended if wet process is adopted .Analysis was made on the main factors which affect the production quality of MS. We proposed the key points of MS quality control: Strictly control the mix of mud soil. For the factory which has bad mine rock with high soil, we can adjust the size of screen bar of vibrating feeder to control the MS MB value; Select the right dimension of vibrating screen, and the appropriate size is between 3.5 to 4mm; For the MS which is produced with dry process method, we can adopt the water-spraying measure and make the water content of MS between 2 to 5%to prevent the MS segregation phenomenon. Besides, the appropriate way of stacking, charging and transportation can subdue MS segregation phenomenon. Secondly, according to the research results and national regulation standard, we proposed the MS technical standard which is fit for Ji-cha highway.
By means of planning MS factory points, the implementation of approving system and establishment of grade four-quality management, the MS quality of Ji-cha highway is now in good condition. Finally, we did some research on MS concrete for C50 T-beam. By means of adjusting water-binder ratio, sand ratio and mineral admixture etc, we get the proper mix proportion of C50 MS concrete for T-beam. From the construction and remaining concrete sample, the concrete now meets construction requirement. From the T-beam static load test, MS T-beam did not find cracks and other anomalies. The force met the design requirements. When the loading was applied, T-beam is now in a range of elastic working. Combining with engineering practice, the mix proportion design method of MS concrete and construction controlling measures are proposed.


Screw classifier : http://www.hxjqcrusher.com/crusher/Screw-classifier.html
dryer machine : http://www.ore-mills.com/dryer.html


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POSTED ON: September 10, 2012 @ 00:25 GMT -7




hongxing
member
Posts: 18


Traditional Crushers can hardly Meet the Current Needs

Traditional jaw crusher is widely used in industries because of its simple structure, reliable operation, easy manufacture, convenient maintenance, low price and high adaptability, but its disadvantages are discontinuous crushing, relatively low efficiency, small crushing ratio, uneven wearing of jaw plate caused by uneven feeding. According to its disadvantages, many countries are trying to improve crushers in the following ways: improve the structure and moving trail, change the type of crushing chamber to increase the crushing ratio and working efficiency, and decrease the wearing and energy consumption; improve the hanging way of mobile jaw plate and the supporting way of bracket to improve the performance of crushers; new wear-resistant jaw plate decreases the wearing consumption; improve the degree of automation, such as automated adjustment, overloading protection, automated lubrication, and so on.
A jaw crusher is a kind of classical size reduction machine which is widely used in mineral, traffic engineering, building metiarial, and ceram fields. In order to improve the jaw crusher performance, such as lower wear rate, higher efficiency and lower power draw. Some jobs have been carried out on some regular parameters, such as length of coupler, nip, suspension height of basic shaft, stroke of moving jaw, etc.. For these parameters, once they are determined, they will be the designing foundation of the machine and cannot be changed in the operation. Since the parameters of this kind of jaw crushers are non-adjustable, its application and performance is constrained. At present, the overseas goal of the mining equipments is getting the advanced predominance than those countries such as our nation. So they will do their best on the big-scale, system automatization, high efficiency and low energy. The modern manufacture technologies are the foundation to reach such a goal.
At the same time, some new types of machines are also introduced, such as double chamber jaw crusher(easily adjustable discharging port, high production capacity), single toggle jaw crusher( combined performance of jaw crusher and cone crusher; production capacity is 50% higher than other crushers with the same specification), and screening jaw crusher( combination of screen and crusher decreases the block and over crushing of crushers, improves production capacity, and decreases the energy consumption).

VSI sand maker : http://www.crusher-export.com/sand_maker.htm
Impact crusher : http://www.hxjqcrusher.com/Impact-crusher.html


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POSTED ON: September 10, 2012 @ 23:08 GMT -7




hongxing
member
Posts: 18


The General Processing Flow of Ore Beneficiation

With the development of technology, the process of ore beneficiation becomes finer, more effective and automated, but some specific procedures must be concluded in the process of ore beneficiation. Now, let’s talk about the general processing flow of ore beneficiation.
1) Preparations: crushing, screening, grinding, and classifying of ore
We generally choose jaw crushers to break the ore. The broken ore will be transferred to screening equipment, like vibrating screen by transferring machine. Vibrating screen here refers to some large-sized ore-separating vibrating screen, such as ZKS vibrating screen and ZGS heavy ore-separating vibrating screen. Different sizes of ore are separated after the screening process, and then they will be further grinded by grinding equipment to become smaller particles. Generally seen large-sized grinding equipments used by many factories are ball mill, vibrating mill, and so on. Here what should be pointed out is that the granularity of ore grinded by different grinding equipments is different: the particle size grinded by ball mill is a little bit larger, but ore grinded by vibrating mill is much fine and even, but its production capacity is smaller. So, which kind of equipment will be chosen is decided by the requirements and needs of users.
The grinded ore have to be screened again, but this time, we should choose fine separating equipments, such as spiral vibrating screen, ultrasonic vibrating screen, linear vibrating screen, and so on. The production capacity of those separating machines is not large, but they can meet user’s requirements on the granularity of ore.
2) ore separating line: such as heavy separating, flotation separating, electric separating, and so on.
Some separated ore needn’t have fine screening process, those heavy separating, flotation separating, and electric separating will be used only according to the characteristics of materials, because some ore have some specific mineral element, which cannot be separated by general physical separating. The choice of separating machine is depending on the nature of ore, and its elements.
3) dehydration: including concentration, filtering, and drying
Different ore may need different kinds of dehydration, although the general process of dehydration is concentrating, filtering, and drying. This is only the general ore separating line, but with the continuous improvement of equipments, more effective and automated flotation machine with higher performance will be produced, and at that time, the ore beneficiation will be more energy-saving, and effective.

Rotary dryers : http://www.ore-machine.com/dryer.html
Cone crusher : http://www.crusher-export.com/cone_crusher.htm


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POSTED ON: September 12, 2012 @ 01:02 GMT -7




hongxing
member
Posts: 18


Vibration could be a double-edged sword in the industry

Electronic-magnetic vibrating feeder is a relatively new type of quantitative feeding equipment. It transfers materials forward by the use of vibration, and materials are periodically thrown to the next equipment. Its use is very wide, for example, discharge materials from the silo; feed belt conveyor, bucket elevator; feed stone crusher and grinding machine; quantitative packaging and dosing. In addition, electronic-magnetic vibratory feeder can also be used for automatic control of the production process and production automation. In mining, metallurgy, coal, chemicals, building materials, machinery manufacturing, as well as food, light industry and other industrial and mining enterprises, electronic-magnetic vibrating grizzly feeder has been widely adopted. It is suitable for particles, powder and granular materials, and also suitable for conveying high temperature, wear and corrosive materials, such as: chemical raw materials and their products, food, raw glass materials, ores, slag, coal, sand, and so on.
There are also many forms of vibrating conveyors, and they differentiate greatly with each in structure, but the main difference is the drive way. The normally used exciters are the eccentric rod driven, eccentric block inertial force driven and solenoid-driven. Other uses hydraulic pneumatic means as a driving mechanism of the vibration conveyor, but the application is less. The motor vibrating feeder is driven by the eccentric block inertial force.
The mechanical vibrations are harmful in many cases, because it affects the performance and service life of the machine. But on the other hand, the mechanical vibration can be used. Motor feed grizzly uses the principle of mechanical vibration to make the working parts do a cyclical movement, which is used to transport materials. Motor vibrating feeder is widely used in electricity, building materials, coal, metallurgy, chemical industry, food industry, which is used to transport all kinds of sticky bulk materials. It is not suitable for handling viscous materials or particle size of less than 0.06mm powdered materials.


Vibrating grizzly feeder : http://www.ore-machine.com/vibratory-feeder.html
Dryer machine : http://www.hxjq-crushers.com/dryer.html


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POSTED ON: September 12, 2012 @ 23:05 GMT -7




hongxing
member
Posts: 18


The Primary Role of the Jaw Crushers in Crushing Field

As for course crushing, better equipments have not been developed to replace traditional jaw crusher and rotary crusher at present. Currently, we mainly aim at promoting, developing and improving the wear-resistance of crushers by modern technology to achieve the aim of energy saving, high efficiency, and long service life. There are more new types of crushers in the field of fine crushing. All in all, jaw crusher is used most widely among jaw crusher, cone crusher, impact crusher and roller crusher.
The moving jaw is a much larger part of crushers with complex structure, and the structural design of jaw should depend on the force of moving jaws. Under the conditions of meeting the strength and hardness, the lighter of its weight, the better. The moving force analysis of the jaw shows that the maximum crushing force moving jaw bearing on the side, the force is getting smaller and smaller. In order to be in line with the conditions of the force, but also to meet the requirements of light weight, variable thickness can be used to strengthen the tendons. That relies on the ribs thickness of the upper (head). The more down, the greater thickness. That is, change the original rectangular reinforcement rib to trapezoidal ribs, as this would reduce the weight of the movable jaw and to ensure that there is sufficient strength. The moving jaw between the two bearing parts of the wall thickness can be moderated to be thinner, in order to reduce weight.
In addition, the research on the rack and the moving jaw Finite Element Method should be strengthened to optimize the design of the moving jaw and the rack to achieve a high degree of reliability and light weight of the rack and moving jaw. Besides, the crushing chamber, crusher dynamic balance, etc., can make use of a computer-optimized design. In short, modern design methods should be used instead of the conventional design method. Furthermore, due to factors such as welding, casting, heat treatment process will impact crusher. So, we should improve the design and manufacturing process level and the use of hydraulic adjustment of the discharge opening and hydraulic insurance gradually so that domestic jaw crusher can achieve the world-class level.

Combination crusher : http://www.hxjq-crushers.com/compound-crusher.html
Ball mill : http://www.hxjq-crushers.com/4.htm


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POSTED ON: September 16, 2012 @ 23:02 GMT -7




hongxing
member
Posts: 18


Two Types of Drying Equipments Widely Used in Cement Plant

There are various forms of drying equipments. Commonly used dryer machine in the cement industry includes rotary dryer, flow pattern dryer, stirring drying positive airflow drying tube. In recent years the spray drying devices are still studied at home and abroad. These devices generally use the convection of hot flue gas to dry materials.
Drying operation can go together with crushing operation and powder selecting operation. At present, the coal powder equipments in cement plant make use of the drying and power grinding system. In recent years, using the drying and power grinding system in raw cement becomes more and more at home and abroad. This way can simplify the processing flow and decrease energy consumption. But if the moisture of raw materials is over the limit of drying and powder grinding system, another dryer is needed to preheat the materials. All in all, the drying process is one of the basic heating procedures, and the drying procedure can directly influence the quality of cement. Therefore, great attention must be paid to the drying equipments.
Within the rotary dryer, there are concurrent and counter-flow type according to the differences of the flowing direction of materials and hot gas. The flowing direction of materials and hot gas is same within the concurrent dryer, and in the feeding part, wet materials contact with hot gas, so the drying speed is fast, but in the discharging part, because the materials are easy to be dried and their temperature is raised, and the difference in temperature between them is small, so the drying ratio within the whole cylinder is uneven. However, the flowing direction of materials and hot gas within the counter-flow dryer is reverse, and the dried materials contact with hot gas with high temperature and low moisture, so the drying ratio of the whole cylinder is much even.
Some specific conditions should be considered before choosing from concurrent operation and counter-flow operation: the nature of feeding materials, granularity, the final requirements of moisture, and the arrangement of the workshop. In the cement plant, those two types are all used, but concurrent type takes more positions.

Cement making plant : http://www.hxjq-crushers.com/cement-mill.html
Jaw crusher : http://www.hxjqcrusher.com/Jaw-crusher.html

http://dryermachinehongxing.blog.com/


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POSTED ON: September 18, 2012 @ 01:21 GMT -7




hongxing
member
Posts: 18


Some Ways to Improve the Grinding Efficiency of Ball Mills

If the ratio of ore and water is too large, the viscous slurry would slow down the rotation of ball mill, and as a result, the grinding efficiency of grinding media will be decrease. But if the ratio is too small, the thin slurry will lead to the direct impact of the grinding media to increase the wear and tear of the grinding body, also cause increased evaporation in the spray-drying process, which could waste the fuel and decrease the discharging ratio of spray drying tower. Usually for ore containing more plasticity raw materials, the ratio is smaller; the ratio should be larger is more barren raw materials are contained.
The grinding medium and materials within the ball mill have three kinds of moving states because of the different rotating speed of the ball mill: drop motion; throwing motion; centrifugal motion. The normal working states of ball mills are drop motion and throwing motion. According to the observation, the more close to the ball mill cylinder, the more the amount of the grinding medium. Only making full use of the outermost layer of the material can make the maximum efficiency of the ball mill. By the theoretical calculation that, when the outermost grinding media detachment angle of 54.73 °, the outermost layer can obtain the maximum falling height of the material in the most effective pulverization. Found from the actual operation, when the operating speed of the ball mill is adjusted to critical speed of 0.75 to 0.85, the grinding medium could reach higher place.
In the ore separating line, the ball in a ball mill is continuously worn. In order to maintain a stable operation of the ball mill and to maintain a reasonable ratio of the filling rate, balls must be reasonably complemented. Reasonable complement of balls is one of the key issues to improve the efficiency of the grinding process. Regularly check the ball mill in accordance with its actual situation, accumulate data, revise the ratio, and finally reach a stability ball charge ratio and reasonable purpose of the complement ball. Normal complement ball only refer to a large ball, and users do not make up a small ball, because the ball can be worn by the big ball. In summary, select the best rotation speed of the ball mill, filling rate and high-quality steel ball, and be careful to draw the ore particle size characteristics curve, in order to determine a suitable size of the steel ball, ball ratio, and gradually mastered the production complement ball law is an effective way to improve the ball mill efficiency.

http://dryermachinehongxing.blog.com/


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POSTED ON: September 18, 2012 @ 01:22 GMT -7




hongxing
member
Posts: 18


Some Points to be Noticed during the Grinding Process

The ball mill is one of the important equipments in the ore separating line. According to the scale of production and conditions of usage, there are a variety of different models of ball mills. As for the ceramic industry, due to the special nature of the production process, ball mill is always a wise choice because of its single structure, easy maintenance, flexible terms, etc. Ball mill is widely used in the ceramic industry, but it may be unstable in the process of using a ball mill, which will have a great influence on the process control and product quality.
The grinding operations are mostly done in cylinders with grinding medium. The continuous rotation of cylinders brings the grinding medium to a certain height, then falling down because of gravity. In this way, the impact strength is produced. At the same time, due to the grinding media revolution and rotation along the cylinder axis of the cylinder body, the squeezing and grinding force generated in contact with the cylinder interval between the grinding media, so that the ore milled. The grinding job with water is called wet grinding, and the dry grinding doesn’t need to feed water. The grinding operations use harder and larger proportion of forged steel (or steel) manufactured into balls and long stick, sometimes using gravel ground softer ore.
The raw materials in ceramic industry can be roughly divided into plastic and implastic materials. The crushing degree of various materials is different, either is the granularity, so if hard materials and soft materials are put into the ball mill together, the clay with small granularity will form a thin mud cover on the surface of the raw feldspar and quartz, which could decrease the grinding ability of grinding medium, lead to the over grinding of soft materials, and extend the grinding time. During the grinding process, the materials that are hard to be crushed should be fed first to shorten the grinding time and improve the grinding efficiency. In abroad, some people will grind the hard materials and soft materials separately, and then mix the slurry according to the requirements. But this process also has its shortcomings, and the mixture of raw materials could be uneven

http://dryermachinehongxing.blog.com/


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POSTED ON: September 18, 2012 @ 01:22 GMT -7




hongxing
member
Posts: 18


Saving the Energy Consumption during the Operation of Rotary Kiln

Rotary kiln is the key equipment in the production of metallurgy, cement and material of fire-fast. And the temperature of calcine is one of the most important parameters in the process control of rotary kiln. It is significant for ameliorating production quality, saving energy, reducing operating costs to improve control precision of rotary kiln. The production process of rotary kiln is a complicated physical chemistry course of reaction and has characteristics of big inertia, pure time-delay, nonlinearity and so on.
With the development of the Chinese cement manufacturing, the new kind cement rotary kiln has been widely used. The Rotary kiln decomposition is the most important craft tache in the cement production line, and its running status affects the output, quality, energy consumption and environment pollution. It is hard to describe exactly the production processes in the cement rotary kiln, which include fuel combustion, heat transfer, and chemical composition of clinker. The most important reason is that there are chemical reaction, physical reaction and mineralogical reactions simultaneously during the complicated heat transfer process. Stable control of temperature in rotary kiln is critically important. The sintering process of the cement has the characteristics of non-linearity, ultivariable, close coupling, large time lag, and time varying. This causes the kiln-status of the rotary kiln system to be complex. Just as what mentioned above, it is difficult to describe the rotary kiln with an accurate mathematical model. The traditional control method is no longer suitable to control the rotary kiln system. Artificial neural networks are good at identifying and controlling complex nonlinear systems. As they are suitable for multi-variable applications, they can easily identify the interactions between the inputs and outputs. It has been shown that a multilayer feed forward neural network using deviation signals as inputs can identify the complex and nonlinear dynamics of the cement rotary kiln with adequate accuracy to design a controller.
The main factors to improve the drying efficiency are the dry nature of the feed solution, process control indicators and environmental conditions of the operation. The nature of the feed solution can be conducive to the conduct of the drying process by changing the operational conditions. Among the controlled conditions, the most important thing is to decide the products moisture content of the feed solution, the rotational speed of the drum (i.e., residence time) and the temperature of the barrel wall. The relationship of those three is mutual restraint.
http://dryermachinehongxing.blog.com/


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POSTED ON: September 18, 2012 @ 01:23 GMT -7




hongxing
member
Posts: 18


The Application of Electromagnetic Vibrating Feeder at home

The green economy and circular economy will be the development direction of the production-oriented enterprises in the future management because of the more serious condition of the worldwide energy shortage and more strict environmental regulations. Energy saving and environmental protection are two tasks faced by the current metallurgy industry. Coke Dry Quenching is an energy-saving and environment friendly technology widely used in abroad, and also is greatly promoted in the domestic metallurgical industry as an energy-saving technology. Compared with the traditional wet quenching, the CDQ has many advantages, including energy-saving, small discharging amount of dust, improvement of the quality, etc. In recent years, the domestic is gradually researching and developing the CDQ production line and working hard to make it modern, large-scaled, and nationalized.
Electromagnetic feed grizzly is an important device in the CDQ production line, which is also one of the core components of the production line. Electromagnetic vibration machinery can be divided according to the type of electromagnetic exciter into electromagnetic type and electric type. The electromagnetic exciter is composed of the core, the electromagnetic coil, the armature and the spring. The core is usually fixed together with balanced mass, and the armature is fixed together with the tank body. The electromagnetic exciter is widely used in industrial electromagnetic vibrating machine, but the electric exciter is usually applied in electromagnetic vibrating table.
The electromagnetic vibratory feeder is started to be researched from the seventies of the last century and applied to actual production in domestic market. Several styling and series of products are formed, and it develops rapidly. But the existing electromagnetic vibrating feeders in China are small and medium-sized machines with small power and low efficiency, which is not suitable for continuous conveying of high temperature and high dust coke, so the development of a large dedicated electromagnetic vibrating feeder is the key to decide the nationalization of the CDQ line. The electromagnetic vibrating feeder is a relatively new type of quantitative feeding equipment for the massive, granular and powdered materials from storage silos quantitative, uniform, continuously transported by the feeding device in feeding efficiency, performance orientation, simple structure, stable and reliable features. It is widely used in mining, coal, metallurgy, building materials, electricity, chemicals, machinery, food and feed and other industries.

http://dryermachinehongxing.blog.com/


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POSTED ON: September 18, 2012 @ 01:23 GMT -7




hongxing
member
Posts: 18




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POSTED ON: September 18, 2012 @ 23:59 GMT -7




hongxing
member
Posts: 18




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POSTED ON: September 18, 2012 @ 23:59 GMT -7


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