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dry ball milling machine

planetery ball milling machine - powder machinery - dry industrial powder ribbon mixer chemical blender

planetery ball milling machine - powder machinery - dry industrial powder ribbon mixer chemical blender

The samples could be ground under vacuum state with using the vacuum ball mill jars. It is widely used in geology,mineral,metallurgy,electronic,building material,ceramic, chemical,light industry,medicine,beauty,environment production,tea and so on. According to the processing requirement to set the rotation speed and alternate time of forward and reversal rotation and set the total grinding time. *Working principle:

Oil seal mute planetary Ball Mill has four ball grinding tanks installed on one turntable.When the turntable rotates, the tank axis makes planetary movements,The balls and samples inside the jars are impacted strongly in high speed movement, and samples are eventually ground into powder. The ball mill can use for dry and wet grinding and also can mix products of different granularity and materials. Working mode: Two or four ball milling jars working at the same time and the maximum sample loading amount: Volume of ball milling jar 2/3, feeding granularity:soil material 10mm other material 3mm discharge granularity: the minimum can up to 0.1um (i.e. 1.0 *10mm-4)

Our factory can provide 304 stainless steel jar, Tungsten carbide jar(YG8), ceramic jar / corundum jar/ alumina jar, zirconia jar, agate jar. nylon jar, PU jar, PTFE jar. We can also provide the ball material of stainless steel, ceramic, corundum, alumina, zirconia, agate, tungsten carbide.

Zhengzhou JinHeMachinery ManufactureCo., Ltd.is a professional manufacturer for mixing machine. We are an ambitious company with personality and strong ability in R&D. The double movement mixing principle that we proposed has greatly improved efficiency and save more energy. At present 3 series mixing machines that we have created all have independentintellectual property rights and national patent rights. Ourinnovative mixing principle is considered at the forefront of mixing technology!

what are the differences between dry and wet type ball mill? | fote machinery

what are the differences between dry and wet type ball mill? | fote machinery

The ball mill is a kind of grinding machine, which is the key milling machine used after the material has been crushed, and it also has a mixing effect. This type of grinding machine has a cylindrical body with spherical grinding mediums and materials.

The centrifugal force and friction generated by the rotation of the fuselage bring the material and the grinding medium to a certain height and then fall. Impact and friction grind the material into fine powders.

It is widely used in cement, silicate, new construction material, refractory material, chemical fertilizer, ferrous metal and non-ferrous as well as ceramics, and widely applied to dry or wet grinding for ores and grindable materials. The wet type is often equipped with a classifier, and the dry type is configured with a suction and separation device.

Both of the dry and wet ball mills are composed of feeding port, discharging port, turning part, and transmission parts such as retarder, small transmission gear, motor, electronic control. The wet grinding can be widely used, because most of the minerals can be wet milled.

The ball mill is equipped with a cylindrical rotating device and two bins, which can rotate by gears. The discharge port is straight, and there are also air intake devices, dust exhaust pipes, and dust collectors.

The material from the feeding device is uniformly fed into the first bin of the mill by the hollow shaft spiral. This bin has stepped lining or corrugated lining, which is filled with steel balls of different specifications.

The rotation of the cylinder generates centrifugal force to bring the steel ball to a certain height, and then fall, which will hit and grind the material. After the material is coarse grinding in the first bin, it will enter the second bin through the single-layer partition plate.

This bin is embedded with a flat liner, and the steel balls inside will further grind the material, then the powder is discharged through the discharge grate to complete the grinding. We can't add water or other liquids during the grinding process.

The material needs to be added water or anhydrous ethanol during the grinding process. We must control the grinding concentration, otherwise, it will affect the grinding efficiency. The amount of water depends on the use of the mud, the amount of clay in the formula, and the water absorption of the clay.

It will be gradually pulverized under the action of impact and grinding. The movement of the ore needs to be driven by the water. The bulk material will be cracked under the impact and grinding of the grinding medium, with the crack gradually increasing and deepening, the final material will be separated from the crack to achieve the effect of bulk material being ground.

The grinding ore will be discharge through the discharge port, and then the discharged mineral will be classified into the qualified product in a spiral classifier, with the coarse sand being returned to the ball mill through the combined feeder to continue grinding.

The feeder feeds material continuously and evenly, the ground material will be continuously discharged from the ball mill. The wet ball mill can be divided into three types according to the motion characteristics: a simple swing type wet ball mill, a complex swing type wet ball mill, and a hybrid swing type wet ball mill.

The dry grinding is suitable for materials that can react with water, which may not be used for wet grinding such as cement, marble and other building materials. Some products which require storage and sale in powder form is suitable for dry grinding, and in some other arid areas, because of the lack of water resources, dry grinding can also be used to save water.

Wet grinding is suitable for most materials, such as all kinds of metal ore, non-metallic ore. As long as it is water-repellent and will not affect the quality of the finished product, the material can be used for wet grinding.

Common ore includes copper ore, iron ore, molybdenum ore, phosphate rock, feldspar mine, fluorite ore, etc. The proportion of steel balls, materials, and water in wet grinding is 4:2:1. The detailed proportion can be determined by grinding experiments.

At the same time, the size of the alumina grinding balls is also required. If the ratio is good, then the ball milling efficiency will be greatly improved. Generally, there are large, medium and small balls, and the better ratio between them can also be obtained through experiments.

The dry milling process may be used when the particle size of the powder is not required to be very fine or when the ball milled product is to be stored or sold in powder form. For example, in the production of cement, it is necessary to choose dry grinding instead of wet grinding, otherwise, it will be difficult to meet our needs.

Wet grinding is generally used in mineral processing, because the wet ball mill has the advantages of strong materials adaptability, continuous production, large grinding ratio, easy to adjust the fineness of the milled products, and it is widely used at present.

Since the dry and wet ball mill equipment has its own advantages, we must find out the suitable grinding type that the material is suitable for so that we can ensure quality and efficiency. Welcome to consult Fote company, where our professionals will give you a satisfactory answer based on your needs.

As a leading mining machinery manufacturer and exporter in China, we are always here to provide you with high quality products and better services. Welcome to contact us through one of the following ways or visit our company and factories.

Based on the high quality and complete after-sales service, our products have been exported to more than 120 countries and regions. Fote Machinery has been the choice of more than 200,000 customers.

where dry milling makes sense |
 

 modern machine shop

where dry milling makes sense | modern machine shop

The problem is, liquid coolant has a way of cooling intermittently, and that fact creates a good reason to apply it with care. If the results of using coolant are dramatic and rapid temperature changes within the cut, then the coolant may do more harm than good. Many of today's cutting tools can stand up to high temperature so long as it's consistent, but they have little patience for change.

Stainless steel can be gummy enough that coolant may be needed as a lubricant when a ball-nose or other round-profile tool is used. That was the case with this Stavax 420 stainless steel mold core. When dry milling wasnt producing an acceptable surface finish, the operator switched to using liquid coolant and the finish improved. Two finish-machined bands in the forward area of the part show the difference. The lower band in the inset photo is the area machined dry.

Alpha Mold (Dayton, Ohio) uses high-temperature cutting tools like these all the time. Back when the shop would mill out cores and cavities by burying a slow and heavy tool deep in the steel, flooding the job with coolant made a lot of sense. But Alpha doesn't cut that way anymore. Instead, the shop takes light cuts at high feed rates using 10,000-rpm machining centers. In place of a larger tool, the cutter of choice on these machines is often a single-insert milling tool from Millstar (Bloomfield, Connecticut), with the one insert made of carbide coated with titanium aluminum nitride (TiAlN). Cutters like this one have allowed the shop to reduce tooling costs significantly . . . but one key to realizing the savings is to run dry as much as possible.

How does TiAlN-coated carbide reduce tooling costs? Shop mold coordinator Bob Hansen explains. The old way to rough out a typical injection mold core or cavity would involve a five-insert slab mill, he says. Each insert would be indexed halfway through the job, so both cutting edges of the insert were worn out by the time the cut was finished.

By contrast, Alpha's high speed milling process allows just one of the coated carbide inserts to do the same job. Even though this insert is more expensive than one of the slab mill inserts, it's not five times as expensive. By using the one insert instead of five, the shop spends only about one-third of what it formerly would have spent on tooling for this cut.

To realize such long life from tools like this, the shop doesn't run liquid coolant while it cuts, but instead it replaces the coolant with 120-psi forced air. Alpha's machining centers deliver this air in much the same way they deliver coolantby conduits that run through the spindle housing. However, a bolt-on air nozzle could accomplish much the same thing.

This forced air keeps the cut consistent in two ways. First, it's less effective than the liquid at cooling the tool. This is important for the TiAlN-coated tool, which performs better in consistent high heat.

Second, the forced air is more effective than the liquid at blowing away the small chips created during high speed machining's light cuts. These chips are often harder than the workpiece surface itself. Getting them out of the way of the cutter is a paramount concern, because recutting chips causes the load on the tool to spike in a way that can reduce tool life dramatically.

By running a TiAlN-coated tool in the consistent high-temperature conditions this coating favors, Alpha Mold lets one insert machine away the same volume of material that used to wear out five inserts, back when a different process and a different style of cutter were used.

But today, if a shop is using a more sophisticated process to take advantage of higher speeds, then the choice of liquid coolant versus forced air becomes one more component of the process deserving careful consideration. Both choices have their strengths. There are a variety of factors to take into account. (See sidebar entitled "Liquid Coolant Or Air? Take Four Factors Into Account" at the bottom of this article.)

For Alpha Mold, however, the matter is cut and dried. Across the variety of mold machining jobs the shop takes on (including injection molds, blow molds and molds for glass work), the shop uses dry cutting almost exclusively. In fact, rather than listing all the merits the shop does see in forced air, it's more instructive to focus on the specific cases where the shop still insists on using liquid.

Deep cavity machining is one case where the shop still prefers to use coolant, Mr. Hansen says. The strong flow of liquid flushes the chips out of confined spaces where the forced air might not be able to carry them out. By the same token, the shop always uses coolant in drilling (generally delivered through the flutes of the tool). In both of these cases, coolant isn't used for any cooling value; it's used for chip evacuation.

Another case where coolant is used involves lubrication. With the move toward faster milling feed rates, the shop also has moved toward more use of ball-nose tools and other round-profile end mills in order to bring the part closer to its final form in roughing and finishing both. However, one problem with a ball-nose tool is that its shape produces vanishingly small cutting speeds ("sfm" approaching 0) near the ball's tip.

This characteristic of ball-nose tools creates a danger whenever two conditions are met(A) the cut is very light, and (B) the workpiece surface is nearly perpendicular to the axis of the tool. Under these conditions, the tip of the tool is not truly "milling" so much as being dragged across the workpiece surface. With softer steelsparticularly pre-heat-treated stainless, Mr. Hansen saysthis effect can visibly affect surface quality. However, the lubricating property of liquid coolant can minimize the impact of this effect, thereby protecting the part's surface quality. Accordingly, whenever the tool is a ball-nose, the finish requirement is critical, and much of the part's geometry consists of nearly flat surfaces, Alpha Mold will often use coolant.

Mr. Hansen notes that there can be an interesting tradeoff here. The shop has observed that while surface finish improves with coolant, the location of the cut may shift by 3 to 5 ten-thousandths of an inch. One possible cause, he says, is that the pressure of the thin film of coolant between the tool and the workpiece is sufficient to deflect the tool by a tiny amount. Whatever the cause, the gain in surface finish sometimes comes at the cost of a small loss in dimensional accuracy.

In cases where Alpha Mold does use coolant, one thing the shop does not do is apply it only on those features of the part that seem to call for coolant's use. If running with coolant makes sense for some portion of the part, the shop runs coolant all throughout the cut. To do otherwisethat is, to run both wet and drymight result in shocking a hot tool with coolant, potentially accelerating tool failure. If for some reason a part does calls for dry machining in one region of the part followed by wet machining in another, the shop is careful to insert a delay into the process to let the tool cool down gradually before coolant is applied. In other words, just as the shop would avoid any sudden moves in the tool path, it also avoids sudden moves where temperature is concerned.

Milling without covering the job in coolant may represent a departure from the way many shops routinely expect to machine. Even so, in many applications, this will be a departure well worth making. In shops like this one where high speed machining techniques are applied to tool steel, avoiding liquid coolant extends the tool's life. There are also secondary benefits. Not only does dry machining provide the accuracy improvements the shop has observed, the dry machining process is also cleaner.

Then there are the other sources of savings dry machining can deliver. Where forced air can be used more, so liquid coolant can be used less, coolant purchase costs go down . . . and coolant disposal costs go down at the same time. In this way, reducing the use of coolant saves money coming and going.

The milling work of a shop like Alpha Mold is well-suited to the use of forced air in place of liquid coolant. However, in other shops that also apply high speed millingbut apply it for different purposes and different materialsthe picture changes. To determine whether dry machining with forced air makes sense for a given high speed milling application, consider four main process factors:

As a result, this chip-welding effect may call for coolant to be used even in cases where the coating is TiAlN. Tool life will probably suffer, but sometimes it's necessary to sacrifice tool life for the sake of a smooth finish.

With many 3D milling applications demanding both shorter cycle times and smoother surface finishes, its time to review how you go about programming and machining parts. These four strategies will let you rough dramatically faster and achieve astonishingly fine surface finishes.

machining dry is worth a try |
 

 modern machine shop

machining dry is worth a try | modern machine shop

In turning, the tool should break chips to prevent the tangles that are more common when cutting dry. The insert shown here, for steel turning, features a cobalt-enriched zone substrate and a 20-micron thick multi-layer coating that provides a thermal barrier.

At a plant we visited recently, the jump in performance that came from removing the cutting fluid took the personnel by surprise. The discovery came by accident. A shortage of cutting fluid forced one shift to machine part of its production quota dry. Necessity being the mother of invention, employees experimented to determine whether they could still produce effectively. What they discovered is that investing in cutting fluids does not necessarily return a dividend.

The economics of using cutting fluids have changed dramatically over the past two decades. In the early 80s, buying, managing, and disposing of cutting fluids accounted for less than 3 percent of the cost of most machining jobs. Today, fluidsincluding their management and disposalaccount for 16 percent of the cost of the average job. Because cutting tools account for only about 4 percent of the total cost of a machining project, accepting a slightly shorter tool life for the chance to eliminate the cost and headaches of maintaining cutting fluids could be the less expensive choice.

And tool life may not even go down. Because coated carbide, ceramics, cermets, cubic boron nitride (CBN), and polycrystalline diamond (PCD) are all brittle, they are susceptible to the chipping and breaking caused by thermal stressesespecially those found in face-turning and milling operationsthat can be aggravated by the introduction of coolant.

In milling, for example, the cutting edges heat and cool as they enter and exit the work. Expansion and contraction from these temperature fluctuations cause fatigue. Eventually a series of thermal cracks resembling a comb will form perpendicular to the edge and cause it to crumble.

Introducing a cutting fluid often makes the situation worse for a simple reason. Most of the cooling effect goes to the parts of the work that are already cooler than the cut. Experts debate whether any cutting fluid at all reaches the cutting zone, the zone between the chip and the part, to control the heat of machining at its source. Fluids tend to cool only the surrounding regionareas that were previously warmthereby intensifying temperature gradients and increasing thermal stresses.

Tapping, reaming and drilling typically do need the help that a cutting fluid can offerbut not necessarily for cooling. Drilling in particular calls for lubrication at the drills tip and flushing to eject chips from the hole. Without fluids, chips can bind in the hole, and average roughness of the machined surface can be twice as high as what is possible with a wet operation. Lubricating the point of contact between the drills margin and the holes wall can also reduce the torque required from the machine.

In addition to cost and tool life, another factor affecting the choice of dry machining is the workpiece. Sometimes, a cutting fluid can stain the part or contaminate it. Consider a medical implant, such as a ball joint for a hip. Fluids are undesirable where there is the fear of contamination.

The workpieces suitability for a dry process also depends on the material. A cutting fluid can be superfluous for cutting most alloys of cast iron, and carbon and alloyed steel, for example. These materials are relatively easy to machine and conduct heat well, allowing the chips to carry away most of the heat generated. The exception is low-carbon steel, which becomes more adhesive as the carbon content falls. These alloys might need a fluid as a lubricant to prevent welding.

Cutting fluids normally are not necessary when machining most aluminum alloys because of the relatively low cutting temperatures. In situations where welding of chips does occur with these materials, highly positive rake angles and sharp edges that shear the material usually solve the problem. However, high pressure coolant may be helpful when cutting aluminum alloys at high speeds where a simple air blast is not enough to help break and evacuate chips.

Machining stainless steels dry is a little more difficult. Heat can cause problems in these materials. It can over-temper martensitic alloys, for example. In many austentic alloys, heat also does not flow well from the cutting zone into the chips because thermal conductivity tends to be low. Overheating at the cutting edge therefore can shorten tool life by an unacceptable amount. Another reason that cutting fluids are usually necessary for cutting stainless steel is that many alloys are gummy, meaning they have a propensity to cause build-up along the cutting edge leading to a poor surface finish.

For a number of materials, dry machining is seldom an option. High-temperature alloys make up an entire class of materials in need of cutting fluids. Cutting in nickel- and chromium-based alloys in particular produces extremely high temperatures that require a cutting fluid to dissipate the heat. The lubricity of a fluid also keeps heat generation to a minimum.

Cutting fluids are mandatory for cutting titanium. Although researchers are studying ways to cut titanium dry, the properties of this material pose significant obstacles for doing so. It is gummy, has low thermal conductivity, and (in the case of some alloys) has a low flash point. Consequently, the chips do not carry the heat away, and the workpiece can get hot enough to ignite and burn. (Magnesium burns easily, too, though it chips readily.) Cutting fluids prevent the problem by lubricating the edge, flushing the chips away and cooling the workpiece. To ensure that the cutting fluid performs these functions well, titanium alloys prefer cutting fluids delivered at high pressure, usually in the range of 4,000 to 7,000 psi.

While some shops have learned the value of dry machining by accident, many others have failed to see the benefits even when they have purposefully attempted it. The reason is that success at dry machining requires more than just eliminating coolantit requires a methodical approach to controlling heat in the overall process.

The most important way that the tool affects heat transfer is by creating good chips. Chips can carry away 85 percent of the heat generated from the cutting action and allow only 5 percent to enter the workpiece while 10 percent flows into the tool and elsewhere. Modern chip grooves pressed into the surface of tools are a great help in breaking chips into manageable shapes and sizes. Because the chips are hotter and therefore more ductile than their counterparts in wet machining, they are more difficult to break and more likely to produce dangerous chip tangles resulting in poor surface finishes. Using a chip groove designed to shear stringy materials will help to solve this problem. Although such edges tend to have more positive rakes, they are not as fragile and susceptible to breakage as they would be in wet applications. The high cutting temperatures inherent in dry machining usually soften the carbide slightly, which increases its toughness, reducing the likelihood of chipping and improving the reliability and longevity of the tool.

For the same reason, switching to a slightly harder tool upon going dry rarely reduces tool life or degrades the consistency of the cut. In fact, the opposite is true. The harder substrate ensures that the edge retains its integrity at high cutting temperatures, yet the slight softening prevents it from being too brittle. Consequently, users can specify a harder grade of carbide to resist both the deformation and cratering (chemical dissolution of the tool edge) that would otherwise shorten tool life unacceptably in dry applications.

Because the tools designed for dry machining can be sharper and tend to be freer cutting than their counterparts for wet machining, they actually generate less friction and help to control heat. Studies in drilling have shown that reducing the edge hone to create a sharper drill can reduce the cutting temperature by 40 percent. Not only do sharp edges keep the temperature low, but they also reduce runout and improve surface finish.

Another way to assist chip breakage and evacuation from the cut is to replace a liquid cutting fluid with a gaseous one, shop air being the most common. Although it is not efficient at cooling, a blast of shop air is sometimes enough to blow chips from the cut to prevent them from being re-cut and from transferring unwanted heat into the work and machine. When lubrication is necessary, users can apply a high-efficiency lubricant as a mist that is consumed in the cutting process. The most effective method is a relatively new technique sometimes referred to as minimum quantity lubrication (MQL), which injects minute amounts of coolant through the tool.

Tool coatings also play an important role in guarding the cutting edge during dry machining. Some of the most effective cutting tool inserts for dry machining combine a specially engineered coating system with a cobalt-enriched zone substrate offering a hard interior and a tough surface. An exceptionally thick, 20-micron multi-layer coating is produced using a combination of conventional and medium-temperature chemical vapor deposition processes. The first titanium carbonitride layer produces the necessary adhesion to the substrate as well as edge toughness. Next, a layer of fine-grained aluminum oxide provides the effective thermal barrier needed for dry machining and high cutting speeds. A second sandwich layer of abrasion-resistant titanium carbonitride helps control flank and crater wear, while the top layer of titanium nitride provides built-up edge resistance and makes it easier to determine the wear on the insert.

Lubricious coatings reduce heat generation by decreasing friction. Coatings such as molybdenum disulfide and tungsten carbide-carbon have low coefficients of friction and can lubricate the cutting action. Unfortunately, these coatings are soft and have relatively poor tool life. To compensate for this limitation, these coatings are often used with hard underlayers, such as titanium carbide, titanium aluminum nitride, aluminum oxide or some combination.

Getting good results in dry machining requires more than specifying the correct cutting tools. Its also important to run them at optimum spindle speeds, feed rates and depths of cut. If changing the groove does not control the chips adequately, for example, try adjusting the feed rate next. Increasing the feed rate usually offers the best results, but in rare instances, a decrease in feed rate can be beneficial.

Using the appropriate cutting parameters can also help to keep heat generation to a minimum. The most obvious way that higher speeds and feeds can do this is to reduce the chip load while getting through the material faster. Spending less time in the cut reduces the time available for generating heat and for letting it soak into the workpiece.

But sometimes lowering the spindle speed by about 15 percent is the best course of action for reducing cutting temperatures. To prevent productivity from suffering, users can increase the feed rate by a comparable amount. Be sure to consult the machines torque chart to ensure that the lower speeds and higher feeds do not increase the torque requirements and bog the spindle down. If the torque requirements exceed the capacity of the spindle, choose a tool with a smaller diameter. If the higher feed rate hurts surface finish, then increase the nose radius of the tool to compensate.

In milling, depth of cut also influences cutting temperature because it affects both pressure and the cooling time. Cutting inserts of fully engaged tools spend half their time heating in the cut and the other half cooling in the air. When the step-over is 50 percent, however, they spend only a quarter of a rotation in the cut and three-quarters of the rotation in the air. In other words, an insert spends half as much time getting hot and much more time cooling. Most tool manufacturers determine the depths of cut for optimal cutting temperatures for various hardness ratings, so follow their recommendations.

As the tool ejects the chips from the cutting zone, the machine must do its part to carry the chips away quickly. If the chips accumulate in the bed of the machine or elsewhere for even relatively short periods, then the heat inside the chips also will be able to flow into body of the machine, causing growth and minute distortions that can affect the accuracy of precision work.

Without cutting fluid to flush the chips and to absorb heat, the machine must rely on its design to remove the chips efficiently. For dry milling, horizontal-spindle machines tend to be best because they allow the chips to fall directly onto a chip conveyor under the machine. In fact, some builders have designed their latest HMCs to be open in the center to eliminate horizontal surfaces that can collect chips in the work envelope.

For turning, the preferred spindle orientation is just the opposite. Vertical chuckers are totally enclosed so inertia throws the chips against the walls as the part spins. The chips can then fall to a chip conveyor below. Many builders have designed their latest vertical lathes with inverted spindles, which exploit gravity further.

No matter how efficient the machine is at removing the chips, it and the workpiece are more sensitive to temperature variations when there is no cutting fluid present to add thermal stability. Consequently, applications involving tight tolerances might need a machine with a symmetrical design and a thermal compensation package to adjust offsets on the fly. Users also might consider measuring critical dimensions on the workpiece periodically with an online probe or at an off-line measurement station to monitor thermal drifting and to take corrective action as necessary.

Another method for controlling thermal fluctuations is to plan the process to keep these fluctuations to a minimum. For example, the operator might have to give the machine time to reach a steady state after starting it in the morning and use automation to keep the machine running during breaks. For applications that perform several operations in one clamping, plan the order of operations to perform the dry machining operations first and the drilling, tapping, and other wet operations last. Taking this precaution keeps usage of cutting fluids to a minimum and prevents them from interfering with the operations that are run dry.

About the authors: Don Graham, Dave Huddle and Dennis McNamara work for cutting tool supplier Seco-Carboloy in Warren, Michigan. They are the product managers for (respectively) turning, advanced materials and milling.

Cutting holes by interpolating a face milling cutter may be a better process choice for many rough and even finish boring operations. Software improvements and better cutter designs allow expanding use of the versatile face mill for hole making.

ceramic ball mill for sale | buy ceramic ball mill machine with good performance

ceramic ball mill for sale | buy ceramic ball mill machine with good performance

The ceramic ball mill uses a ceramic material liner, and ceramic alumina balls are used as grinding media. It is the key ball grinding mill equipment for fine grinding after the ceramic glaze is coarsegrinding. The ceramic ball mill machine is widely used for the dry or wet grinding of the ceramic glaze mineral raw materials, such as feldspar, quartz, talc, kaolin, etc.

Due to its small capacity, the ceramic ball mill generally has a loading capacity of 0.05-15 tons/time. It belongs to asmall ball mill, so it is generally used in small batch production during product trial production.

In recent years, the ceramic ball mill machine has not only improved its production capacity and crushing efficiency, but also expanded its application range. From limestone to basalt, from stone production to various ore crushing, the ceramic ball mill can provide high milling performance in various medium crushing, fine crushing, and ultra-fine crushing operations.

As one of the high-quality ceramic ball mill suppliers, in order to match the needs of customers with larger production, we have launched a ceramic ball mill machine with a single charge of 40 tons. The size of the ceramic ball mill barrel is 36007000mm, the barrel rotation speed is 13r/min, and the installed power is 160KW, which has been praised by many customers with large production needs.

The ceramic ball mill media is the same as that of the liner, which is made of alumina ceramics. According to the different grinding materials, the grinding medium can also be made of quartz or silex. As the ceramic ball mill media, ceramic alumina balls have the advantages of low wear, high hardness, high density, and low cost, which can maximize the purity of the crushed materials and obtain high grinding efficiency.

The ceramic alumina balls in the ceramic ball mill machine is generally added to three to four different specifications, which is related to the feed and discharge particle size and the speed of theball milling machine. When only dispersing the material, only one type of ceramic alumina ball can be added. The proportion of grinding ball is related to the grinding method of the ceramic ball mill. The ratio of large balls, medium balls, and small balls in dry and wet ceramic ball mill is also different.

In the grinding process of dry ceramic ball mill machine, the function of large and small ceramic alumina ball is different. Relatively speaking, the large ceramic alumina ball is beneficial to the impact effect, while the small ball is beneficial to the grinding effect. When the ratio of the grinding ball is reasonable, the higher bulk density can be obtained. Therefore, the reasonable ratio of large and small balls is an important factor affecting the efficiency of dry ceramic ball mill machine.

For the wet ceramic ball mill, because of the participation of liquid, the material is crushed by grinding rather than impact. Therefore, the amount of large ceramic alumina balls should be appropriately reduced, and small and medium balls should be added to ensure a good grinding effect. The initial grinding ball ratio of wet ceramic ball mill machine is generally 30% for large ceramic alumina balls, 40% for medium balls and 30% for small balls.

As a ball mills supplier with 22 years of experience in the grinding industry, we can provide customers with types of ball mill, vertical mill, rod mill and AG/SAG mill for grinding in a variety of industries and materials.

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