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[ID] => 1049
[post_author] => 2
[post_date] => 2015-01-06 10:52:36
[post_date_gmt] => 2015-01-06 10:52:36
[post_content] =>
[post_title] => Alpine RO Rotoplex Granulator
[post_excerpt] =>
[post_status] => publish
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[post_name] => alpine-ro-rotoplex-granulator
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[post_modified] => 2021-05-22 02:39:05
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[1] => WP_Post Object
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[ID] => 1062
[post_author] => 2
[post_date] => 2015-01-06 10:52:36
[post_date_gmt] => 2015-01-06 10:52:36
[post_content] =>
[post_title] => Micron Pulvis Agitating Media Mill
[post_excerpt] =>
[post_status] => publish
[comment_status] => closed
[ping_status] => closed
[post_password] =>
[post_name] => micron-pulvis-air-classifying-mill
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[post_modified] => 2021-05-22 02:38:56
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[2] => WP_Post Object
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[ID] => 1089
[post_author] => 2
[post_date] => 2015-01-06 10:52:36
[post_date_gmt] => 2015-01-06 10:52:36
[post_content] => The Nauta® Cyclomix is a multi-purpose, high-shear impact mixer that is suitable for a variety of applications. It combines different processes in one single machine and is the ideal choice for intensive thermal processing of high energy input; high degree of dispersion and homogeneity and ultra-short cycle times.
- Intensive mixing of cohesive powders, slurries and liquids
- Agglomeration by temperature or moisture addition
- Coating of powders with powders or liquids
- Dispersion of pigments
- Metallic bonding processing of powder paints
- (Vacuum) drying at low temperature with liquid recovery
- Low-speed mixing of cohesive powders, slurries and liquids
- Densification of powders
- Spheronization of particles
- Grinding & de-agglomeration
- Heating and cooling
- Chemical reactions
[post_title] => Nauta
® Cyclomix
[post_excerpt] =>
[post_status] => publish
[comment_status] => closed
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[post_password] =>
[post_name] => vrieco-nauta-cyclomix
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[post_modified] => 2020-12-15 12:43:48
[post_modified_gmt] => 2020-12-15 17:43:48
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[3] => WP_Post Object
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[ID] => 1085
[post_author] => 2
[post_date] => 2015-01-06 10:52:36
[post_date_gmt] => 2015-01-06 10:52:36
[post_content] =>
In an Active Freeze Dryer, the product is first frozen dynamically by moving it in a specially designed chamber. Whether the material to be dried starts off as a liquid, granular solid or paste, the forced motion inside the drying chamber ensures that it freezes in the form of free-flowing solid granules.
Once the product is fully frozen, a deep vacuum is applied and the sublimation starts. Heat applied to the vessel jacket is effectively distributed throughout the product due to the dynamic environment. The initially coarse, frozen granules gradually shrink as the ice structure connecting the frozen material sublimes, yielding a loose powder consisting of fine, dry particles.
As the solvent disappears, the product temperature starts to rise until it equals the jacket temperature. This marks the end of the drying process. Once the vacuum has been released, the chamber is opened and the powdered product can be discharged.
Typical applications include pharmaceuticals like antibiotics, proteins, collagens, APIs and electrolytes. This new technology has also proven its suitability to the freeze drying of special materials like nano-materials,
polymers, ceramics, pigments, fillers, lime stone, catalysts, glass powder and salts.
[post_title] => Nauta® Active Freeze Dryer
[post_excerpt] =>
[post_status] => publish
[comment_status] => closed
[ping_status] => closed
[post_password] =>
[post_name] => vrieco-nauta-active-freeze-dryer
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[post_modified] => 2021-05-22 02:46:09
[post_modified_gmt] => 2021-05-22 06:46:09
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[4] => WP_Post Object
(
[ID] => 1053
[post_author] => 2
[post_date] => 2015-01-06 10:52:36
[post_date_gmt] => 2015-01-06 10:52:36
[post_content] =>
The Alpine UPZ Ultraplex Fine Impact Mill are truly flexible. Designed with ultimate versatility in mind, this one unit can accomplish a multitude of size reduction tasks. A wide variety of grinding inserts are available through the entire line of mills. The mill is also offered with a counter-rotating (Contraplex) set of pins for added shear for difficult to mill products. The pharmaceutical version of this work horse has been designed specifically for cGMP compliance from the ground up. Size reduction of soft to medium soft material can be accomplished at rates from 3 to 700 Kg/hr depending on feed material and final size requirements.
Alpine UPZ Ultraplex Fine Impact Mill can also be integrated into Stott Isolators. This arrangement provides a completely integrated system capable of containment levels as low as 1 micro-gram/cubic meter.
Operation of the mill is simple. Material is introduced to the mill via feed device such as a rotary air lock or volumetric/gravimetric feeder through the mill's inlet. The inlet directs the material to the grinding chambers center. The grinding toll rotates at high speed, creating centrifugal force that will accelerate the pharma-powder outwards. The particles outward flow hurls them at high speed against the pins or other grinding media where the impact will cause the particles to fracture.
[post_title] => Alpine UPZ Ultraplex Fine Impact Mill
[post_excerpt] =>
[post_status] => publish
[comment_status] => closed
[ping_status] => closed
[post_password] =>
[post_name] => alpine-upz-ultraplex-fine-impact-mill
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[pinged] =>
[post_modified] => 2021-05-19 18:40:13
[post_modified_gmt] => 2021-05-19 22:40:13
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[5] => WP_Post Object
(
[ID] => 1055
[post_author] => 2
[post_date] => 2015-01-06 10:52:36
[post_date_gmt] => 2015-01-06 10:52:36
[post_content] =>
The Alpine AFG Fluidized Bed Jet Mill is suitable for fine and ultrafine size reduction of any material up to a Moh's hardness of 10 that can be fluidized by the expanded compressed gas in the grinding chamber. The addition of an internal forced vortex classifier is capable of controlling particle top sizes (D97) as low as 3 microns.
The key to maintaining a consistent particle size distribution is the integral air classifier. Air classification is defined as the separation of bulk material according to the settling velocity in a gas. In this type of jet mill two opposing forces act on the particle, the mass force and the drag force. The particle size at which the mass force and the drag force act equally on the particle is defined as the cut point. If the mass force (or weight of the particle) exerts a greater influence on the particles coarser than the cut point, they are returned to the grinding zone of the jet mill and reduced further. If the drag force (or airflow through the classifier) acts upon particles finer than the cut size, they are carried through the classifier wheel and recovered as product.
By changing the parameter of classifier wheel speed, airflow, and grind pressure, a wide variety of particle size cut points can be achieved. Achievable particle size ranges include D97 as low as 3 microns to as high as 60 microns.
[post_title] => Alpine AFG Fluidized Bed Opposed Jet Mill
[post_excerpt] =>
[post_status] => publish
[comment_status] => closed
[ping_status] => closed
[post_password] =>
[post_name] => alpine-afg-fluidized-bed-jet-mill
[to_ping] =>
[pinged] =>
[post_modified] => 2021-05-12 17:02:46
[post_modified_gmt] => 2021-05-12 21:02:46
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[6] => WP_Post Object
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[ID] => 1058
[post_author] => 2
[post_date] => 2015-01-06 10:52:36
[post_date_gmt] => 2015-01-06 10:52:36
[post_content] =>
The Mikro Pulverizer® consists of a high speed rotor assembly fitted with hammers. The grinding chamber is fitted with a cover containing a multiple deflector liner and a retaining screen at the point of mill discharge.
A screw mechanism is often used to introduce feed material into the grinding chamber. The grinding process is affected by three basic variables: the type of hammers, the rotor speed, and the size and shape of the screen opening.
There are two types of hammers: the “stirrup,” recommended where a fine particle size is desired; and the “bar,” which generates a coarser grind with a minimum of fines. Both types are tipped at the wearing edge with various abrasion resistant alloys. Rotor speed affects the fineness of the grind as follows: low speeds result in a coarse grind and high speeds produce a fine grind. Size and shape of the retaining screen openings also affect the product. In general, a finer screen opening will result in a finer grind. The retaining screen does not function as a sifting screen, except in coarse granulations.
Controlled Particle Size
Optimum particle size reduction can greatly affect chemical reaction speeds, solubility, weight, color, volume, appearance and strength of ground products. Mikro-Pulverizers® provide accuracy in particle size control because the grinding action is entirely mechanical. Once a mill is set to deliver a certain product, it will continue to produce exactly the same result without adjustment.
Grind, Blend and Disperse
Mikro Pulverizers® grind, blend and disperse in a single operation. Intensive action thoroughly mixes dissimilar ingredients into a finished product. Heat sensitive materials are handled by adjustment of mill speed, hammers, screen and discharge air relief, as well as with pneumatic conveying. Conditioned air may be bled into a grinding chamber, or the feed may be pre-conditioned or chilled. The Mikro Pulverizers® comes in many model sizes from small pilot scale to massive production models.
[post_title] => Mikro Pulverizer
® Hammer & Screen Mill
[post_excerpt] =>
[post_status] => publish
[comment_status] => closed
[ping_status] => closed
[post_password] =>
[post_name] => mikro-pulverizer-hammer-and-screen-mill
[to_ping] =>
[pinged] =>
[post_modified] => 2022-01-24 09:13:15
[post_modified_gmt] => 2022-01-24 14:13:15
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[7] => WP_Post Object
(
[ID] => 1066
[post_author] => 2
[post_date] => 2015-01-06 10:52:36
[post_date_gmt] => 2015-01-06 10:52:36
[post_content] =>
With Alpine High Pressure Roller Mill products are produced with a precipitous granule distribution. The high pressure roller crusher is also called roller crusher or roller press.
The significant difference of high pressure roller grinding compared with compaction is that the press forces between the rollers are lower because no new adhesive forces need to be created.
The mill feed is transported to the most narrow gap by the counter rotating rollers through friction effects. Both rollers are pressed against each other using hydraulics. This milling force is transferred to the mill feed. Through selective contact of the individual granules are created at extremely high inner tensions which lead to fractures.
The use of the optimal milling force leads to compact mills with extremely low energy requirements. Because only the outer particles of the material bed have contact with the surface of the rollers, milling that is almost contamination-free is possible.
High Pressure Roller Mills are used in the cases of medium-fine crushing of hard materials such as ceramics, minerals from 5 up to 9 on the Moh's hardness scale, metals and metal alloys. High Pressure Roller Mills are used in continuous operation or in a closed circuit with screening machines or classifiers.
[post_title] => Alpine High Pressure Roller Mill
[post_excerpt] =>
[post_status] => publish
[comment_status] => closed
[ping_status] => closed
[post_password] =>
[post_name] => alpine-high-pressure-roller-mill
[to_ping] =>
[pinged] =>
[post_modified] => 2021-05-18 17:32:35
[post_modified_gmt] => 2021-05-18 21:32:35
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[8] => WP_Post Object
(
[ID] => 1064
[post_author] => 2
[post_date] => 2015-01-06 10:52:36
[post_date_gmt] => 2015-01-06 10:52:36
[post_content] =>
In the case of jet milling, one takes advantage of the fact that as compressed gas exits a nozzle, it is accelerated to extremely high speeds. In expanding, the energy contained in the compressed gas in the form of heat is converted to kinetic energy. The speed of sound is initially a natural limit for the exit velocity.
But by using Laval nozzles, the exit velocity can be increased to above the speed of sound. Laval nozzles are characterized by their hourglass shape, which widens downstream of the narrowest cross-sectional point, the nozzle throat. The length of the divergent part of the nozzle is adapted to suit the operating pressure. Compressed air of 20°C and 6 bar overpressure is frequently used as the grinding gas, and delivers nozzle exit speeds of around 500 m/s.
As a result of drawing in gas and product from the fluidized bed, the speed of the gas jets sinks extremely rapidly after exiting the nozzles. Comminution is a result of inter-particle collision in the jets of air and also in the core area, i.e. the point where the opposing jets intersect. Jet mills are impact mills which are used to achieve maximum fineness values. Such particle sizes can only be obtained in connection with an air classifying step. Spiral jet mills have a static air classifier integrated into the mill housing, whereas fluidized bed opposed jet mills are equipped with a dynamic deflector-wheel classifier.
The fineness is set as a function of the classifying wheel speed. All-important is a high product loading of the nozzle jets in order to achieve a high concentration of particles and thus high impact probabilities. The patented Megajet nozzles were developed with this in mind. They consist of four small nozzles which as a result of their close proximity generate an under-pressure at their common center, and thus draw particles from the fluidized bed direct into the center of the nozzle jet. The product level in the machine is controlled by means of load cells or by monitoring the current loading of the classifier drive.
[post_title] => Alpine TFG Fluidized Bed Jet Mill
[post_excerpt] =>
[post_status] => publish
[comment_status] => closed
[ping_status] => closed
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[post_name] => alpine-tfg-fluidized-bed-jet-mill
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[post_modified] => 2021-05-22 02:47:04
[post_modified_gmt] => 2021-05-22 06:47:04
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[ID] => 1050
[post_author] => 2
[post_date] => 2015-01-06 10:52:36
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[post_content] =>
[post_title] => Alpine CL Series Granulator
[post_excerpt] =>
[post_status] => publish
[comment_status] => closed
[ping_status] => closed
[post_password] =>
[post_name] => alpine-cl-series-granulator
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[pinged] =>
[post_modified] => 2020-10-30 17:53:19
[post_modified_gmt] => 2020-10-30 21:53:19
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[10] => WP_Post Object
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[ID] => 1099
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[post_date] => 2015-01-06 10:52:36
[post_date_gmt] => 2015-01-06 10:52:36
[post_content] =>
[post_title] => Alpine Kompaktor ARC HK
[post_excerpt] =>
[post_status] => publish
[comment_status] => closed
[ping_status] => closed
[post_password] =>
[post_name] => alpine-kompaktor-arc-hk
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[post_modified] => 2021-05-18 17:37:12
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[ID] => 1040
[post_author] => 2
[post_date] => 2015-01-06 10:52:36
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[post_content] =>
[post_title] => Micron Xerbis Agitated Media Flash Dryer
[post_excerpt] =>
[post_status] => publish
[comment_status] => closed
[ping_status] => closed
[post_password] =>
[post_name] => micron-xerbis-agitated-media-flash-dryer
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[post_modified] => 2020-10-29 11:57:39
[post_modified_gmt] => 2020-10-29 15:57:39
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[12] => WP_Post Object
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[ID] => 1095
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[post_date] => 2015-01-06 10:52:36
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[post_content] =>
[post_title] => Alpine Pharmapaktor APC L
[post_excerpt] =>
[post_status] => publish
[comment_status] => closed
[ping_status] => closed
[post_password] =>
[post_name] => alpine-pharmapaktor-apc-l
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[post_modified] => 2021-05-19 17:09:13
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[post_date] => 2015-01-06 10:52:36
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[post_content] =>
Shurfeed™ cutting chamber design allows material to
fall directly in front of the rotating knives and to be pulled quickly
through the cutting action for fast, complete granulation without piece
bounce and flyback. Three steep angle rotor knives and two bed knives
mounted in Double Angle Cut™ configurations reduce energy consumption, noise, heat and fines, while increasing throughput.
Shurfeed® cutting chamber design allows material to fall directly in
front of rotating knives to be pulled quickly through the cutting
action for fast, complete granulation without piece bounce and
flyback. Only Polymer Systems gives a clear, unobstructed feed opening
equal to rotor diameter for maximum performance through every inch of
the cutting circle. This unique design maximizes granulator capacity,
eliminates bottlenecks at the entrance to the cutting chamber and
dramatically increases effective screen area for fast throughput. Ask
for a comparison!
[post_title] => Polymer Systems Shurfeed 2000 Granulator
[post_excerpt] =>
[post_status] => publish
[comment_status] => closed
[ping_status] => closed
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[post_name] => polymer-systems-shurfeed-2000-granulator
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[post_modified] => 2020-10-25 13:34:43
[post_modified_gmt] => 2020-10-25 17:34:43
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[post_content] =>
[post_title] => Polymer Systems Premium Shurfeed Granulator
[post_excerpt] =>
[post_status] => publish
[comment_status] => closed
[ping_status] => closed
[post_password] =>
[post_name] => polymer-systems-premium-shurfeed-granulator
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[post_modified] => 2020-04-09 14:27:03
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[post_date] => 2015-01-06 10:52:36
[post_date_gmt] => 2015-01-06 10:52:36
[post_content] =>
[post_title] => Alpine Picoline
[post_excerpt] =>
[post_status] => publish
[comment_status] => closed
[ping_status] => closed
[post_password] =>
[post_name] => alpine-picoline
[to_ping] =>
[pinged] =>
[post_modified] => 2021-05-12 10:27:13
[post_modified_gmt] => 2021-05-12 14:27:13
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[16] => WP_Post Object
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[post_date] => 2015-01-06 10:52:36
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[post_content] =>
[post_title] => Polymer Systems Large Part Granulator
[post_excerpt] =>
[post_status] => publish
[comment_status] => closed
[ping_status] => closed
[post_password] =>
[post_name] => polymer-systems-large-part-granulator
[to_ping] =>
[pinged] =>
[post_modified] => 2020-10-28 12:39:36
[post_modified_gmt] => 2020-10-28 16:39:36
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[17] => WP_Post Object
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[ID] => 1084
[post_author] => 2
[post_date] => 2015-01-06 10:52:36
[post_date_gmt] => 2015-01-06 10:52:36
[post_content] =>
[post_title] => Nauta® Vacuum Dryers
[post_excerpt] =>
[post_status] => publish
[comment_status] => closed
[ping_status] => closed
[post_password] =>
[post_name] => vrieco-nauta-vacuum-dryers
[to_ping] =>
[pinged] =>
[post_modified] => 2020-10-28 12:41:36
[post_modified_gmt] => 2020-10-28 16:41:36
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[18] => WP_Post Object
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[ID] => 1061
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[post_date] => 2015-01-06 10:52:36
[post_date_gmt] => 2015-01-06 10:52:36
[post_content] =>
Mikro ACM® Air Classifying Mills were invented by HMPS in the late 1960’s and are one of the most versatile types of size reduction equipment available in the market. These units while being capable of producing fine, medium and coarse grinds for a wide variety of materials for Food, Pharmaceutical, Chemical and Mineral industries, require very little maintenance over their life span. The basic design of these mills is the impact size reduction that is coupled with an internal dynamic classifier which controls the outlet (product) particle size via recirculating the coarse particles back into the grinding zone.
There are seven main factors which determine particle size distribution for the Mikro ACM® Air Classifying Mill. When varied, the rotor type and speed combined with the liner and hammer count affects the production of fines. The separator type and speed affects the top size of the product. And lastly, the airflow governs the throughput as well as top size and fines generation. With the endless available options a machine can be configured to process just about any material that is below MOH’s hardness of 5.
[post_title] => Mikro ACM
® Air Classifying Mill
[post_excerpt] =>
[post_status] => publish
[comment_status] => closed
[ping_status] => closed
[post_password] =>
[post_name] => mikro-acm-air-classifying-mill
[to_ping] =>
[pinged] =>
[post_modified] => 2021-07-29 11:28:37
[post_modified_gmt] => 2021-07-29 15:28:37
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[menu_order] => 4
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[19] => WP_Post Object
(
[ID] => 1060
[post_author] => 2
[post_date] => 2015-01-06 10:52:36
[post_date_gmt] => 2015-01-06 10:52:36
[post_content] =>
The Mikro Atomizer® Air Classifying Mill uses air flow to convey materials to the grinding zone. Size reduction occurs when hammers fitted to the rotor impact particles at 4,000 to 8,000 RPMs. A deflective liner returns oversized particles to the hammer impact zone for further reduction. The ground materials are then conveyed to the classifier wheels which are mounted to the grinding rotor. Larger particles are rejected for regrinding as the desired particles are air conveyed by internal fan blades and exit the mill for collection.
[post_title] => Mikro Atomizer
® Air Classifying Mill
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In the case of jet milling, one takes advantage of the fact that as compressed gas exits a nozzle, it is accelerated to extremely high speeds. In expanding, the energy contained in the compressed gas in the form of heat is converted to kinetic energy. The speed of sound is initially a natural limit for the exit velocity. But by using Laval nozzles, the exit velocity can be increased to above the speed of sound. Laval nozzles are characterized by their hourglass shape, which widens downstream of the narrowest cross-sectional point, the nozzle throat. The length of the divergent part of the nozzle is adapted to suit the operating pressure. Compressed air of 20°C and 6 bar overpressure is frequently used as the grinding gas, and delivers nozzle exit speeds of around 500 m/s. As a result of drawing in gas and product from the fluidized bed, the speed of the gas jets sinks extremely rapidly after exiting the nozzles.
Comminution is a result of inter-particle collision in the jets of air and also in the core area, i.e. the point where the opposing jets intersect. Jet mills are impact mills which are used to achieve maximum fineness values. Such particle sizes can only be obtained in connection with an air classifying step. Spiral jet mills have a static air classifier integrated into the mill housing, whereas fluidized bed opposed jet mills are equipped with a dynamic deflector-wheel classifier. The fineness is set as a function of the classifying wheel speed. All-important is a high product loading of the nozzle jets in order to achieve a high concentration of particles and thus high impact probabilities.
The patented Megajet nozzles were developed with this in mind. They consist of four small nozzles which as a result of their close proximity generate an under-pressure at their common center, and thus draw particles from the fluidized bed direct into the center of the nozzle jet. The product level in the machine is controlled by means of load cells or by monitoring the current loading of the classifier drive.
[post_title] => Alpine TDG/TTG Twin Turbo Opposed Jet Mill
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[post_title] => Alpine TTC Turbo Twin Air Classifier
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Target Applications: While most customers use the air jet sieve to determine the particle size of dry powder ranging from as fine as 20 µm / #635 (mesh) up to 4,750 µm / #4 (mesh), some utilize the particle size analyzer to determine the average particle size below a specified cut point; such as D90 < 50 µm. Others use the air jet sieve to confirm that a powder top size does not exceed product specifications. The Mikro Air Jet Sieve® MAJSx can even be used as a small lab-scale classifier to remove the fine particles out of a sample or as a dedusting system to remove undesirable dust from small batches.
How it Works: The Mikro Air Jet Sieve® MAJSx utilizes test sieve screens and the pneumatic sieving principle to enhance the accuracy and reproducibility of particle size analysis. This method has become the preferred standard for such tasks as quality assurance of incoming raw materials, process control, and verification of final product specifications. While under negative pressure, a positive upward air flow is emitted from the rotating slit wand which continuously disperses particles across the surface of a test sieve screen. Those particles that are smaller then the opening of the test sieve screen pass through and are carried away from the sample, leaving the particles larger than the sieve opening on top of the test sieve screen. Particle size within the range of 20 to 4,750 µm can quickly be determined. The unique rotating slit wand feature also reduces, and in many cases, eliminates the need for tapping or brushing, thus enhancing the analysis reproducibility. The overall
system is designed for cleaner operation and requires less counter space than other types of analytical equipment.
Key Operating Parameters Enhance Repeatability & Reliability: The sieving time plays a major role in determining particle size with an air jet sieve. Excessive sieving time can lead to particle degradation due to attrition. In most dry powder applications, Hosokawa recommends a two-minute sieving time cycle which provides ample time for the particles of the entire sample to pass through the sieve screen or be retained.
Sieving vacuum pressure between 8-16 inches of water column is recommended during a sieve analysis. If the pressure is too low, the air velocity passing through the rotating wand may not be sufficient to evenly disperse the entire sample. If the pressure is too high, the air velocity could generate enough force to further grind material as the sample repeatedly impacts the sieve screen and sieve cover.
A sample volume between 10 and 100 grams is recommended in most air jet sieve particle analyzers, depending on the density of the material being tested. Samples larger than 100 grams have the potential to blind
the test sieve screen and affect the analysis results.
Test sieve screen quality and integrity is critical in any particle size analysis process. Hosokawa provides test sieve screens that are 99% accurate. Test sieve screens with damage such as holes, tears, scratches, waves, or other imperfections are not recommended. Sieve screens should be routinely re-certified to insure accurate analysis results.
Performance at an Economical Cost: Certified pre-owned Hosokawa Air Jet Sieves analyzers start at $4,400. Prices can vary dependent on the number of sieve screens required, vacuum selection, balance type, optional components, taxes, and shipping.
- Pre-Owned Air Jet Sieve Particle Size Analyzers – from $4,400
Price Disclaimer: Prices listed are subject to change without warning and do not include taxes, shipping, or import fees or the cost of any accessories or ancillary equipment not included in the quotation.
American Made: A long-time industry leader, Hosokawa developed air jet sieving technology in the early 1960's and has refined and elevated its technology to meet the latest market needs. The Mikro Air Jet Sieve® MAJSx is manufactured in the U.S. and comes with our pledge for performance and dependability. These innovative products have earned a reputation for accuracy and reliability as evidenced by the thousands of installations worldwide.Â
[post_title] => Mikro Air Jet Sieve® MAJSx Pre-owned
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[post_title] => Polymer Systems Press Side Granulator
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[post_content] => The Mikro® Classifier is characterized by its optimized cyclone-classifier principle. Because of the optimized flow pattern and the use of a high-efficiency classifying wheel, the Mikro® Classifier is especially suitable for ultrafine classifying operations in in-line mode.
The feed product is fed tangentially to the top of the classifier. The classifying wheel separates the feed product into a coarse fraction and a fines fraction. The classifying air and the fines pass through the
classifier wheel, whereas the coarse material settles on the housing wall. A flow of secondary air introduced tangentially above the product discharge recirculates any unclassified material to the classifying wheel for renewed classification, whereby agglomerates are dispersed and the material is then distributed uniformly in the classifying zone. The optimized classifying wheel geometry results in a high product yield at an extremely high precision of cut. In addition, the low pressure drops result in low energy consumption and correspondingly lower operating costs.
The Mikro® Classifier was designed for all types of fine to medium-fine products. It is especially suitable for powder coating classification aimed at reducing the ultrafine portion under 5 – 10 µm.
[post_title] => Mikro® CC Air Classifier
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[post_title] => Alpine AFS Cutting Mill
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As requirements in the pharmaceutical industry continue to ask for tighter particle distributions, additional steps such as on-line classification may be required. The Mikro® Acucut Air Classifier utilizes dual stage operating controls to ensure sharp cuts and narrow band particle size distributions typically below the 10 micron range. This permits control of maximum and minimum particle size diameters with unparalleled accuracy. With precise control of the air flow and rotor speeds this unit will produce the same sharp cuts each time, every time. The high energy dispersion also ensures that the maximum percentage of fines is reclaimed. Easily operated, cleaned and maintained, the Mikro® Acucut Air Classifierr keeps downtime to a minimum.
Options are available for effective control of product contamination, protection against corrosion, handling abrasive materials and classifying adhesive powders. The Mikro® Acucut Air Classifier is ideal for chromatography materials, alumina, silica, toner and metal powders. Extremely high dispersive energy applied to the process material ensures unparalleled yields even with sticky and difficult to disperse products.
The Mikro® Acucut Air Classifier is a forced vortex unit designed to disperse, then classify fine particles into coarse and fine fractions. High energy dispersing air enters the rotor radially around the entire outer edge. Feed material enters this dispersion air zone through an inlet in the rotor ring. Particles are acted upon by centrifugal and drag forces. Air carries the dispersed fines inward to the central fractions outlet, coarse move outward to the rotor periphery. Cut points are adjusted by airflow, rotor speed or both.
[post_title] => Mikro® Acucut Air Classifier
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[post_title] => Alpine ATR Vertical Dry Media Mill
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[post_title] => Alpine Ventoplex Air Classifier
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[post_title] => Polymer Systems Hot Melt Granulator
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The wet material is fed through customized feeding systems into the grinding and drying section of the dryer's main body. The grinding rotor disperses the wet material into very fine particles and the fine particles are fluidized in the grinding chamber by temperature-controlled, hot gas coming in from the air heater.
The hot air (or inert gas) can be heated up to 650 °C and as the wet product is dispersed, it is reduced in size in the bottom section of the dryer. The system is kept under a negative pressure by the exhaust fan and the surface area of the product is increased enormously so that water (or other solvents) is evaporated instantaneously.
The dry and fine particles are conveyed with the gas stream to the top section of the dryer where a separator classifies the particles by size. Then the particles pass the classifier at the set cut point and are conveyed with the exhaust air to a powder air separating system like the cyclone, cyclone filter or cyclone scrubbers.
The Micron Dryer flash dryer retains a fluidized bed of product in the drying chamber to ensure a low level of adhesion of wet material on the inside wall of the drying chamber. Moreover, process parameters like classifier speed and outlet temperature can be adapted to control moisture content and particle size of the end product.
- Ultra fine regular end product - Due to its specially designed dispersion rotor, our flash dryers are able to produce ultra-fine powders in one step from suspensions, slurries, pastes and dough, filter cakes or wet powders.
- High evaporation capacity - Due to the combination of high ?T with a good dispersion of the wet product in the air, our flash dryers can evaporate large quantities of liquids.
- Compact design - Compared to other direct drying technologies, the flash dryer requires up to 50% less space.
- Multi-purpose - Filter cake or slurry, in the same machine. Therefore with the Drymeister-H unlimited mechanical dewatering is possible previous to the final drying stage.
- Easy access - Either for cleaning, inspection or maintenance inside the dryer, our flash dryers offers the best accessibility from the market, regardless which size.
- Various systems available - Open, closed- and recycle system concepts.
[post_title] => Micron Drymeister Flash Dryer
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[post_title] => Alpine ANR Vertical Wet Media Mill
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