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The Atritor DCM Mill is one of the most universal milling systems available with independently driven grinding and classifying sections.
It has a wide range of applications producing materials in some instances to less than 15 microns.
Feed material is metered into the mill pneumatically and first passes into the classifier zone where any fraction of the feed that is already inside specification is removed as product, thus avoiding any over-grinding. Oversize is recycled internally to the grinding zone and is returned to the classifier after further size reduction. This process produces a steep size distribution curve.
Adjustment of the classifier speed controls the size of the product leaving the mill. The product is conveyed pneumatically to a collecting cyclone and/or bag filter. With the application of heat to the inlet air flow, simultaneous drying can be undertaken.
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Rhodax crusher
Principle
In-bed compressive grinding
Advantages
On load and on line setting
Non sensitive to tramp iron
Low wear rate
Stable quality of ground product fineness
Selective grinding and classification of the Fines which preserve hard grains.
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Fluidised Bed Opposed Jet Mill AFG
Dry Processing – Micronising + Air Classifying
Fluidised bed opposed jet mill for manufacturing powders with a steep particle size distribution and sharp top size limitation in the range
< 5 µm to 200 µm.
Grinding nozzles arranged around the periphery of the grinding chamber.
Classifying wheel(s) arranged horizontally in the classifier top section.
Cool and contamination-free grinding.
Cleaning made easy by the hinge-back and removable classifier top section and the inspection deck in the mill housing.
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From lab/pilot to production requirements, Hosokawa Micron Powder Systems offers a complete line of scaleable size reduction technologies.
Whether you call it size reduction, milling, pulverizing, jet milling, air milling, or simply grinding, we can help. Our broad application expertise allows us to help you select the technology that works best for your application. We are flexible enough to design and supply a complete system for the most unique applications yet our standard offerings are economical and acceptable for most grinding applications.
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The Atritor Micronising Mill is a classical spiral jet mill utilising compressed gas to produce superfine materials by autogenous comminution.
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Technical Features
* HIGH GRADE MATERIALS - AISI type 316L stainless steel mirror polished to Ra 0.25 microns
* RAPID CLEANING AND EASY VALIDATION - ease and quickness in assembling and disassembling, limited number of components
* SIMPLICITY OF WHOLE UNIT - total absence of screws (replaced by tri-clover connections), no crevices, smooth and regular surface
* VERY LOW PRODUCT LOSS - typical yields are 99.5% of batch size
* ELIMINATION OF BLOW-BACK PHENOMEN
* LIMITATIN OF CAKING in sticky product
* DIMENSIONAL HOMOGENEITY - thanks to the one single collecting point
* LOWEST CONSUMPTION OF PROCESS GAS of similar units available
* PROCESS AT CONSTANT TEMPERATURE - ENDOTHERMIC - no heat generation
* EASY SCALE UP maintaining the same PSD (Particle Size Distribution)
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The MultiNo®-M/S/M is an efficient as well as versatile opposed jet mill, which apart from grinding also excels in classifying and homogenizing. The working principle is based on the propulsion of particles through the use of compressed air. These particles collide with high speed on each other and are reduced in size. The advantage of the product-on-product milling principle are low wear and very low product contamination.
The unique milling unit MultiNo®-M/S/M is especially used for ultra-fine milling of highly abrasive and sticky materials.
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MultiNo®-M/S
The MultiNo®-M/S is an efficient and patented opposed jet mill, which can grind a variety of materials at high throughput. The working principle is based on the propulsion of particles through the use of compressed air. These particles collide there with high speed upon each other and are reduced in size. The great advantages of the product-on-product milling principle are low wear and very low product contamination.
NOLL produces laboratory, pilot and production milling units. Every machine is designed according to your specification. Our competent employees will gladly explain whether the MultiNo®-M/S is the ideal milling unit for your product or application.
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MultiNo'-M IS THE OPTIMAL OPPOSED JET MILL FOR THE ULTRA FINE PARTICLE SIZE REDUCTION OF DRY MATERIALS WITH MOHS HARDNESSES UP TO 10. ITS SPECIALLY DESIGNED MILLING CHAMBER PREVENTS BLOCKAGES AND DEPOSITIONS OF STICKY MATERIALS BUT ALLOWS EASY ACCESS FOR THOROUGH CLEANING AND COMFORTABLE MAINTENANCE- AVERAGE POWDER SIZES OF 2 TO 200 ..m CAN BE EASILY REACHED. THE COMBINATION OF PRODUCT-ON-PRODUCT MILLING AND THE USE OF VARIOUS ABRASION-RES 6TANT LININGS. MAKE THE MultiNo'-M IDEALLY SUITED FOR THE PROCESSING OF VERY PURE OR TEMPERATURE-SENSITIVE PRODUCTS.
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The Atritor Cell Mill is a highly efficient mechanical mill with multiple rotors mounted on a vertical shaft.
The construction is modular, providing great versatility for customised design.
It will produce material with mean particle sizes below 20 microns and can be fitted with an integral dynamic classifier if the control of top size is particularly important.
Product quality is optimised by control of mill speed through a frequency inverter, which also limits the starting current.
As an airswept mill this versatile unit is an effective flash dryer and, in some circumstances, can be fed directly with a slurry, producing a dry, fine powder.
Contact parts can be manufactured in many materials to suit most applications.
The Cell Mill is extensive in its applications, ranging from minerals through chemical, dyes and pigments to foodstuffs.
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Technical Features
* HIGH GRADE MATERIALS - AISI type 316L stainless steel mirror polished to Ra 0.25 microns
* RAPID CLEANING AND EASY VALIDATION - ease and quickness in assembling and disassembling, limited number of components
* EASY TO MOVE thanks to its small size and low weight
* SIMPLICITY OF WHOLE UNIT - total absence of screws (replaced by tri-clover connections), no crevices, smooth and regular surface
* ELIMINATION OF BLOW-BACK PHENOMEN
* LIMITATIN OF CAKING in sticky product
* DIMENSIONAL HOMOGENEITY - thanks to the one single collecting point
* PROCESS AT CONSTANT TEMPERATURE - ENDOTHERMIC - no heat generation
* EASY SCALE UP maintaining the same PSD (Particle Size Distribution)
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The Sturtevant Micronizer® is a jet mill employing compressed air or gas to produce particles less than one micron. Inside the Micronizer, precisely aligned jets create a vortex. Material is fed into this vortex along an engineered tangent circle and accelerates. High-speed rotation subjects the material to particle-on-particle impact, creating increasingly smaller fines. While centrifugal force drives large particles toward the perimeter, fine particles move toward the center where they exit through the vortex finder.
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The Alpine AHM is a universal, agitated ball mill with a horizontal cylindrical milling chamber for the continuous wet milling of particles up to finenesses in the sub-micron range. The AHM features a cylindrical milling chamber with cooling jacket and a modular design for product inlet, milling cylinder, and separation zone. The mill is easily accessible from all sides for cleaning and handling. Typical applications are chemicals, minerals, ceramics, metals, pigments, foodstuffs, and pharmaceuticals.
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Ball mills are used primary for single stage fine grinding, regrinding, and as the second stage in two stage grinding circuits
Grinding of materials in a tumbling mill with the presence of metallic balls or other media dates back to the late 1800's. Since that time, Metso
Minerals and its predecessor companies, MPSI, Sala, Marcy, Hardinge, Kennedy Van Saun (KVS), Denver Equipment, Allis Chalmers, Boliden
Allis, and Dominion Engineering, have designed and manufactured more than 8,000 grinding mills.
Metso overflow ball mill sizes range from 5 ft. x 8 ft. with 75 HP to 26 ft. x 41 ft. with 20,000 HP.
Normal feed size to a Metso Minerals ball mill is 80% passing 1/4" (6mm or finer) for hard ores and 80% passing 1" (25mm or finer) for soft ores.
Product size is typically 35 mesh or finer.
Operation
Ball mills operate either in open or closed circuit. Open circuit operation is best utilized when:
Another stage of grinding follows the mill
Reduction ratio is small
Feed material is already fine and one pass through the mill produces the desired results
Product size control is not critical and oversize material can be tolerated in the product
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Ball mill is an efficient tool for grinding many materials into fine powder. The Ball Mill is used to grind many kinds of mine and other materials, or to select the mine.2 It is widely used in building material, chemical industry, etc. There are two ways of grinding: the dry way and the wet way. It can be divided into tabular type and flowing type according to different expelling mine.
To use the Ball Mill, the material to be ground is loaded into the Neoprene barrel that contains grinding media. As the barrel rotates, the material is crushed between the individual pieces of grinding media that mix and crush the product into fine powder over a period of several hours.
Quite simply, the longer the Ball Mill runs, the finer the powder will be. Ultimate particle size depends entirely on how hard the material you're grinding is, and the time how long the Ball Mill runs. Our Ball Mills have been used to grind glass, powder food products, creat custom varnishes,make ceramic glaze, powder various chemicals, and make Black Powder.
1) Easy and safe operation
2) Stable performance
3) Even product size
4) Low energy consumption
4) Low invest, high return
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Mineral Processing
FGD - plant
Czechia
2x ball mill SBc280x625
wet process
discharge type: over flow
installed capacity 630 kW
mean size F80 7000 µ
mean size P80 22 µ
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Fives FCB owns a remarkable tool for mill sizing, in the form of a grindability test so-called "FCB-Index" simulating for the best the grinding in a tube mill. Indeed, Fives FCB has developed and improved for many years a precise basic grindability batch test needing less than 50 kg of material and which makes it possible to define:
The specific energy necessary to grind a given material when using an optimised closed circuit grinding plant with a modern separator
The characteristics of the finished product which will be obtained in the a.m. industrial optimised circuit
The corrective solutions allowing to reach the optimum performances from an existing industrial grinding plant.
Using this tool, Fives FCB is capable to size a new grinding installation or to define the modifications of an existing one, with the determination of their expected performances (ref. "Modelling of grinding plants and grindability of materials in cement plants" - G. Flament, V Saint-Etienne, A. Cordonnier, P. Tête - World Cement 1991, Vol 22, n° 8, pp 14-26).
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The Ball Mill works in closed circuit on a high efficiency TSV classifier
Advantages
Easier air circuit adjustment,
Selective aeraulic extraction: when particle diameter is fine enough it will be extracted by air speed.
Up to 350 KW
Semi-air swept ball mill,
Integral aeraulic discharge of the product
Direct drive at the outlet end (no grith + pinion gears),
Fully assembled (except liners) on a frame.
Over 350 KW
Fully air swept ball mill,
Integral aeraulic discharge of the product,
Over grinding reduced,
Pressure drop of mill reduced,
Extremely reduced jamming risks.
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Available in Open Circuit And Close Circuit
Application : cement, bauxite, lime stone, Ore material or any type of minerals
Product Size : 200 mesh
Capacity : 1 - 10 ton per hour
Sub-drive by Heavy duty Pulley drive or Helical Gear Box drive
Sub-divided in to Liner Plates in Cast Steel, Mn. Steel, Cast iron or High Carbon Steel.
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With the proven use of gearless drive technology, the limitation of AG/ SAG mill size due to gearing constraints has been eliminated. Metso Minerals is the world's leading supplier of gearless AG/SAG mills.
The experience gained from installation and operation of these mills enables us to offer mills of up to 35,000 installed horsepower or more.
Today a single grinding line with a Gearless SAG mill and appropriate ball mills can process over 100,000 mtph.
Gearless AG/SAG Mills
Gearless drives (ringmotors) have been used on tumbling mills for several decades. The design features motor rotor elements bolted to a mill shell,
a stationary stator assembly surrounds the rotor elements, and electronics covert the incoming current from 50/60 Hertz to about 1 Hertz. The mill
shell actually becomes the rotating element of a large low speed synchronous motor. Mill speed is varied by changing the frequency of the current to
the motor. The ringmotor can be used to inch and spot the mill for maintenance.
Our engineers welcome the opportunity to assist you with circuit and circuit control design as well as start-up, operation, and optimization of the milling plant.
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The TORUSMILL® TM is a completely new, patented dispersion system which allows for a particularly economic and environmentally dispersion of high quality products. With the TORUSMILL® a predispersion with a dissolver disc and afterwards the extremely fine grinding with an integrated basket mill can be made in one process technology machine in one container.
This innovation intelligently combines proven high speed dispersion technology with a basket mill system. In operation, the TORUSMILL® is first used to predisperse the product with a dissolver disc. During predispersion the torus shaped basket is "parked" in the upper part of the machine. After predispersion, the milling basket, containing the grinding beads and the milling tool is lowered into the millbase and the fine milling process can begin. The fast circulation of the millbase within the milling basket is generated by the dissolver disc and integrated pump wheel; because of this excellent dispersion results and a very narrow particle size distribution can be achieved very quickly. Due to the fact that no pumps, pipes, valves and additional containers are necessary, the cleaning is very easy and a quick change of the millbase is possible.
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The TORUSMILL® SK is a dispersion machine with technology which corresponds closely to the TORUSMILL®. Whereas with the TORUMILL® TM the predispersion with a dissolver disc as well as the milling process with an integrated milling system is possible, the TORUSMILL® SK has been modified to disperse exclusively as a basket mill.
The TORUSMILL® SK is a basket mill where the milling basket filled with bead mills is lowered into predispersed millbase. During the operation the milling basket stands still while the shaft on which the pump wheel, the milling tool and the dissolver disc are fixed, is rotating.
By the means of the milling tool the milling beads are moved within the basket mill and the millbase is dispersed. The separation of the beads/millbase is ensured by a sieve in the bottom of the milling basket. The dissolver disc and above all the pump wheel, which is built into the milling basket, ensure exceptional circulation of the mill base and that excellent milling results are achieved very quickly.
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Basket mill TML – easy to clean and quick product change
Basket mills are extremely efficient grinding systems comprising of a grinding basket that is lowered into the millbase for dispersion. During operation the grinding basket stands still while the milling shaft to which the milling tool, dissolver disc and pump wheel are fastened, rotates. The rotating milling tool agitates the beads inside the basket which disperses the millbase. The dissolver disc at the tip of the shaft and the pumping wheel generate effective circulation of the millbase, helping to provide excellent dispersion results in a short period of time. The TML basket milling system includes a special adapter flange which enables it to be fitted to a DISPERMAT® without the need for any tools. If the standard dissolver shaft and the TML basket milling system are frequently interchanged, an additional DL dissolver shaft is recommended.
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Cryogenic size reduction technology just took a leap into the future.
The Black Ice Cryonizer by Reduction Engineering provides an economic and efficient solution to difficult size reduction applications.
The new Reduction Engineering Black Ice Series Cryonizing mill incorporates cryogenic fine milling technology by through the principals of;
Impact milling, Attrition milling,Particle to Particle Impact
The Black Ice Cryonizer enables the customer to grind various products;
Engineered Thermoplastic Elastomers
Rubbers (Cured / Uncured)
Pharmaceuticals / Nutracuetical Products
Pigments
Powder coatings
Waxes/Sterates
Adhesives
Spice and Herb Products
Contact Reduction Engineering Inc. to see how we can help you change the way you grind!
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The CryoMill has been specially designed for cryogenic grinding. The grinding jar is continually cooled with liquid nitrogen from the integrated cooling system before and during the grinding process.
Thus the sample is embrittled and volatile components are preserved. The liquid nitrogen circulates through the system and is continually replenished from an autofill system in the exact amount which is required to keep the temperature at –196 °C. The automatic cooling system guarantees that the grinding process is not started before the sample is thoroughly cooled. This results in reduced consumption and guarantees reproducible grinding results.
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Innovate technology and precision manufacturing combine in the new Model GPX.DC double chamber coffee grinder to produce segregated coffees with the same grinder.
The Model GPX.DC is designed for coffee applications that require the separation of different coffee flavors, styles, grinds, etc. In the past, this would require two grinders or a clean out of the grinder between operations.
* Electronic logic automatically opens the hopper gate for the selected grinding chamber during operation.
* When one grinder chamber is used, its gate is opened and the other gate is closed automatically.
* Designed to grind from 250-500 lbs./hr. (espresso to urn), the Model GPX.DC provides cost effective grinding to the same excellent grinding specifications and reliability as the "industry standard" Model GPX.
* Convenient dial allows the rapid selection of any desired coffee grind with each grinding chamber, the result being the ability to achieve two grinds and two different coffee flavors on the same grinder.
* Standard hopper size is 10 lbs., which can be enlarged up to 50 lbs. if desired.
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MPE Disc-Style Grinders provides a high degree of versatility in the size reduction of a broad spectrum of materials. These compact, economical grinders serve a variety of grinding applications, including chemicals, dry foods, food aggregates, minerals, spices and a wide assortment of similar materials.
Ruggedly-constructed, MPE's Disc-Style Grinders feature "diamond hard" grinding discs that are precision cut to optimize their cutting "action", resulting in a better end product with an increased production capability. This "action" produces results superior to a hammermill at a fraction of the price. The disc grinders work best on "friable", or breakable, materials and adjust to deliver target sizes from 6 - 150 mesh (3,000 - 100 microns).
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GPX.WC Water Cooled Disc Style Coffee Grinder - Ideal for regular, Turkish and flavored coffee grinding applications
This new design delivers all of the exceptional features of our standard GPX grinder (see other) as well as the advantages of water cooled coffee grinding.
This grinder is ideal for high production (regular or flavored) coffee applications up to 450 lbs./hr. with grind capabilities including Turkish.
By removing heat from the grinding process, the water cooling on the GPX.WC eliminates the loss of important flavor "volatiles" and aromas thereby optimizing the quality of the ground coffee product. Includes solenoid shut-off valve to allow water cooling only during grinding operation.
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Applications
Neue Herbold ZM series pulverizers are designed for the pulverizing of mid-hard, brittle to high impact plastics that require the final material to be in powder form. Typical applications are PE, PVC, PC and other various types of plastics. The required pulverizer input material must be in a granulate form with a maximum size of 6-8 mm (1/4-5/16 in.).
Design
The ZM series pulverizer (pulveriser) is a extremely high out put unit can be supplied with automatic temperature control. The material to be pulverized is vibro feeder fed into fixed and high speed rotating pulverizer (pulveriser) discs. In conjunction with a integrated inner disc that material is centrifically forced through the pulverizer (pulveriser) discs to the outer chamber for discharge with a down stream material transport system. Neue Herbold ZM series pulverizers (pulverisers) operate without a screening machine. The specific final powder size is dependent on the teeth configuration and the adjustable gap between the pulverizer (pulveriser) discs. In the event that the application requires a maximum particle size, a screening machine can be easily integrated into the system.
Advantages
- extremely high through put rates
- minimal thermal material stress
- longer disc life and reduced re-sharpening costs
- quick and easy disc adjustment and replacement
- cost effective operation
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The FRITSCH Soil Deagglomerator almost completely automates the deagglomeration of soil samples and simultaneous removal of stones and a high sample throughput.
Field of application
Preparation of soil samples for chemical and physical analysis, e.g. to determine the active ingredients relative to crop yield or identification of pollutants. Agglomerates are reduced to 2 mm grain size, e.g. as per the sewage
sludge code or DIN 19683.
Method of operation
Agglomerated soil samples are crushed by the combined forces of impact and friction. Rotating spiral nylon brushes in a cylindrical grinding chamber gently deagglomerates the sample, simultaneously conveying the sample along a 2 mm perforated plate within the chamber. The processed sample is collected in a container at the base of the mill, whilst larger components (stones, glass, wood, etc.) are retained and finally separated out at the end of the grinding chamber.
Advantages
- Gentle deagglomeration
- No crushing of stones
- Automatic removal of components > 2 mm
- Self-cleaning is effected by the rotating brushes which convey all material through the system
- Dust free operation through specially designed sealing
system
- Connection for dust extraction
- Accurate short-time timer for reproducible grinding conditions
- Continuous operation also possible
- Safety tested (CE mark)
- Speedy size reduction
- Easy to clean
- Overload protection
- 2 year guarantee
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Mills
