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            [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 [post_content_filtered] => [post_parent] => 0 [guid] => [menu_order] => 5 [post_type] => hm-products [post_mime_type] => [comment_count] => 0 [filter] => raw ) [1] => WP_Post Object ( [ID] => 1039 [post_author] => 2 [post_date] => 2015-01-06 10:52:36 [post_date_gmt] => 2015-01-06 10:52:36 [post_content] => Prior to the development of the Mikro LGM® Long Gap Mill, materials had to be dried and de-agglomerated in two separate operations. For example, a rotary drum dryer was used to dry materials that had been wet milled. A separate grinding/de-agglomeration process followed the drying operation. The Mikro LGM® Long Gap Mill is Hosokawa's solution for streamlining these two operations into one continuous process. This type of dryer is commonly referred to as a "gap" type mill. It is called a "long" gap mill because of the long annular gap path the process material takes from the inlet to the discharge. By combining several operations such as flash drying, de-agglomeration and surface coating into one operation, a Mikro LGM® Long Gap Mill eliminates the need for multiple material handling systems which subsequently increases process efficiencies. The dried powders often do not require any further size reduction. Both slurries and wet cake can be handled. The Mikro LGM® Long Gap Mill modular design expands its range of applications beyond drying and deagglomeration. For dry grinding, modular options include: direct and independent drive classifiers; pre-grind rotor stage; an integrated jet mill and variable stage rotor design. The smaller size Mikro LGM® Long Gap Mills are engineered with a split body housing for easy maintenance and cleaning. The LGM processes high moisture materials in wet cake form as well as dry solid feed stocks up to one inch. Finished product particle sizes of D97 < 10 microns can be achieved. The Mikro LGM® Long Gap Mill has demonstrated superior performance over all other mechanical mills in reducing grit from pre-sized and agglomerated powders. Typical results are less than 1 part per million (ppm) residue on a 44 micron sieve starting from a feed stock with a residue of 120 ppm. This performance is achieved with a powerful grinding mechanism coupled with a precision internal air classifier. The air classifier is designed for a theoretical cut point of 2-5 microns, depending on the particle density. Rejected particles are forced away from the classifier wheel and redirected outside of the mill back to the material inlet using a patented re-circulation system. [post_title] => Mikro LGM ® Long Gap Mill [post_excerpt] => [post_status] => publish [comment_status] => closed [ping_status] => closed [post_password] => [post_name] => mikro-lgm-long-gap-mill [to_ping] => [pinged] => [post_modified] => 2021-05-03 11:55:51 [post_modified_gmt] => 2021-05-03 15:55:51 [post_content_filtered] => [post_parent] => 0 [guid] => [menu_order] => 7 [post_type] => hm-products [post_mime_type] => [comment_count] => 0 [filter] => raw ) [2] => WP_Post Object ( [ID] => 1061 [post_author] => 2 [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 [post_content_filtered] => [post_parent] => 0 [guid] => [menu_order] => 4 [post_type] => hm-products [post_mime_type] => [comment_count] => 0 [filter] => raw ) [3] => WP_Post Object ( [ID] => 1106 [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 Peneto Analyzer PNT-N [post_excerpt] => [post_status] => publish [comment_status] => closed [ping_status] => closed [post_password] => [post_name] => micron-peneto-analyzer-pnt-n [to_ping] => [pinged] => [post_modified] => 2021-05-19 11:45:13 [post_modified_gmt] => 2021-05-19 15:45:13 [post_content_filtered] => [post_parent] => 0 [guid] => [menu_order] => 12 [post_type] => hm-products [post_mime_type] => [comment_count] => 0 [filter] => raw ) [4] => WP_Post Object ( [ID] => 1054 [post_author] => 2 [post_date] => 2015-01-06 10:52:36 [post_date_gmt] => 2015-01-06 10:52:36 [post_content] =>

The grinding air is injected tangentially via Laval nozzles in the nozzle ring into the machine. This causes a spiral jet of air to form in the grinding zone, from which the mill derives its name. A high pressure forms in the mill as a result of the spiral flow of air that can rise to 1 bar overpressure in operation without product. The integrated injector is charged with compressed air which ensures that the product is conveyed into the machine against the overpressure present in the machine. This, however, is associated with a considerable compressed air consumption, which can be as much as 30% of the total grinding air requirement.

The feed product circulates close to the nozzle ring and is thus intercepted repeatedly by the air jets exiting the nozzles. Comminution is the result of inter-particle collision caused by the particles flowing at different speeds in the nozzle jet. Comminuted material is conveyed along with the air to the discharge, the spiral flow subjects the particles to a classification: only fine particles are discharged, coarse particles remain in the mill.

Alpine® AS  Spiral Jet Mills are characterized by a special geometry of the mill housing in the area of the discharge, which contributes towards a finer classification effect and a sharp top cut.

The product also has an effect on the air flow within the machine: the more product there is in the machine, the more the spiral flow is braked and the lower is the centrifugal force and the coarser the end product. The relationship of the product to the classifying air flow rate is therefore the most significant parameter for setting the fineness of the spiral jet mill. In principle, different nozzle angles can also be used to achieve the required fineness values, whereby the complete nozzle ring must be exchanged in this case.

[post_title] => Alpine AS Spiral Jet Mill [post_excerpt] => [post_status] => publish [comment_status] => closed [ping_status] => closed [post_password] => [post_name] => alpine-as-spiral-jet-mill [to_ping] => [pinged] => [post_modified] => 2021-05-12 17:01:59 [post_modified_gmt] => 2021-05-12 21:01:59 [post_content_filtered] => [post_parent] => 0 [guid] => [menu_order] => 16 [post_type] => hm-products [post_mime_type] => [comment_count] => 0 [filter] => raw ) [5] => WP_Post Object ( [ID] => 1132 [post_author] => 2 [post_date] => 2016-08-31 07:10:30 [post_date_gmt] => 2016-08-31 07:10:30 [post_content] => [post_title] => Nauta® Conical Screw Mixers 80, 200 & 1,200 liters [post_excerpt] => [post_status] => publish [comment_status] => closed [ping_status] => closed [post_password] => [post_name] => vrieco-nauta-conical-screw-mixers-80-200-and-1-200-liters [to_ping] => [pinged] => [post_modified] => 2021-05-22 02:35:37 [post_modified_gmt] => 2021-05-22 06:35:37 [post_content_filtered] => [post_parent] => 0 [guid] => [menu_order] => 0 [post_type] => hm-products [post_mime_type] => [comment_count] => 0 [filter] => raw ) [6] => WP_Post Object ( [ID] => 1086 [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 Labomixer LV [post_excerpt] => [post_status] => publish [comment_status] => closed [ping_status] => closed [post_password] => [post_name] => micron-labomixer-lv [to_ping] => [pinged] => [post_modified] => 2021-04-22 08:20:49 [post_modified_gmt] => 2021-04-22 12:20:49 [post_content_filtered] => [post_parent] => 0 [guid] => [menu_order] => 15 [post_type] => hm-products [post_mime_type] => [comment_count] => 0 [filter] => raw ) [7] => WP_Post Object ( [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 [to_ping] => [pinged] => [post_modified] => 2021-05-22 02:46:09 [post_modified_gmt] => 2021-05-22 06:46:09 [post_content_filtered] => [post_parent] => 0 [guid] => [menu_order] => 0 [post_type] => hm-products [post_mime_type] => [comment_count] => 0 [filter] => raw ) [8] => WP_Post Object ( [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 [post_content_filtered] => [post_parent] => 0 [guid] => [menu_order] => 0 [post_type] => hm-products [post_mime_type] => [comment_count] => 0 [filter] => raw ) [9] => WP_Post Object ( [ID] => 1038 [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 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 [post_content_filtered] => [post_parent] => 0 [guid] => [menu_order] => 18 [post_type] => hm-products [post_mime_type] => [comment_count] => 0 [filter] => raw ) [10] => WP_Post Object ( [ID] => 1081 [post_author] => 2 [post_date] => 2015-01-06 10:52:36 [post_date_gmt] => 2015-01-06 10:52:36 [post_content] =>

Protected by additional patents, the TTSP tandem toner classifier is a refinement of the TSP toner classifier, primarily with the aim of improving the precision of cut even further by means of two consecutive classifying stages. At the same product loading of the classifying air, the tandem toner classifier achieves a much higher precision of cut than the TSP, or at a constant coarse product quality, achieves a higher loading factor. This makes it possible to almost treble the throughput in comparison with the TSP.

Because of the dust explosion hazard associated with processing toner, the classifiers are designed to be explosion-pressure-shock-proof to 10 bar over-pressure.

[post_title] => Alpine TTSP Toner Classifier [post_excerpt] => [post_status] => publish [comment_status] => closed [ping_status] => closed [post_password] => [post_name] => alpine-ttsp-toner-classifier [to_ping] => [pinged] => [post_modified] => 2021-05-22 02:46:22 [post_modified_gmt] => 2021-05-22 06:46:22 [post_content_filtered] => [post_parent] => 0 [guid] => [menu_order] => 0 [post_type] => hm-products [post_mime_type] => [comment_count] => 0 [filter] => raw ) [11] => WP_Post Object ( [ID] => 1080 [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 TTC Turbo Twin Air Classifier [post_excerpt] => [post_status] => publish [comment_status] => closed [ping_status] => closed [post_password] => [post_name] => alpine-ttc-turbo-twin-air-classifier [to_ping] => [pinged] => [post_modified] => 2021-05-22 02:46:28 [post_modified_gmt] => 2021-05-22 06:46:28 [post_content_filtered] => [post_parent] => 0 [guid] => [menu_order] => 0 [post_type] => hm-products [post_mime_type] => [comment_count] => 0 [filter] => raw ) [12] => WP_Post Object ( [ID] => 1037 [post_author] => 2 [post_date] => 2015-01-06 10:52:36 [post_date_gmt] => 2015-01-06 10:52:36 [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 [post_password] => [post_name] => polymer-systems-shurfeed-2000-granulator [to_ping] => [pinged] => [post_modified] => 2020-10-25 13:34:43 [post_modified_gmt] => 2020-10-25 17:34:43 [post_content_filtered] => [post_parent] => 0 [guid] => [menu_order] => 0 [post_type] => hm-products [post_mime_type] => [comment_count] => 0 [filter] => raw ) [13] => WP_Post Object ( [ID] => 1043 [post_author] => 2 [post_date] => 2015-01-06 10:52:36 [post_date_gmt] => 2015-01-06 10:52:36 [post_content] => [post_title] => Polymer Systems Press Side Granulator [post_excerpt] => [post_status] => publish [comment_status] => closed [ping_status] => closed [post_password] => [post_name] => polymer-systems-press-side-granulator [to_ping] => [pinged] => [post_modified] => 2021-07-30 12:58:52 [post_modified_gmt] => 2021-07-30 16:58:52 [post_content_filtered] => [post_parent] => 0 [guid] => [menu_order] => 0 [post_type] => hm-products [post_mime_type] => [comment_count] => 0 [filter] => raw ) [14] => WP_Post Object ( [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 [to_ping] => [pinged] => [post_modified] => 2021-05-22 02:38:56 [post_modified_gmt] => 2021-05-22 06:38:56 [post_content_filtered] => [post_parent] => 0 [guid] => [menu_order] => 20 [post_type] => hm-products [post_mime_type] => [comment_count] => 0 [filter] => raw ) [15] => WP_Post Object ( [ID] => 1137 [post_author] => 2 [post_date] => 2016-08-31 07:16:12 [post_date_gmt] => 2016-08-31 07:16:12 [post_content] => [post_title] => Long Gap Mill for Toll Processing [post_excerpt] => [post_status] => publish [comment_status] => closed [ping_status] => closed [post_password] => [post_name] => long-gap-mill-for-toll-processing [to_ping] => [pinged] => [post_modified] => 2021-05-22 02:34:09 [post_modified_gmt] => 2021-05-22 06:34:09 [post_content_filtered] => [post_parent] => 0 [guid] => [menu_order] => 0 [post_type] => hm-products [post_mime_type] => [comment_count] => 0 [filter] => raw ) [16] => WP_Post Object ( [ID] => 1078 [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 Ventoplex Air Classifier [post_excerpt] => [post_status] => publish [comment_status] => closed [ping_status] => closed [post_password] => [post_name] => alpine-ventoplex-air-classifier [to_ping] => [pinged] => [post_modified] => 2021-05-22 02:46:37 [post_modified_gmt] => 2021-05-22 06:46:37 [post_content_filtered] => [post_parent] => 0 [guid] => [menu_order] => 0 [post_type] => hm-products [post_mime_type] => [comment_count] => 0 [filter] => raw ) [17] => WP_Post Object ( [ID] => 1076 [post_author] => 2 [post_date] => 2015-01-06 10:52:36 [post_date_gmt] => 2015-01-06 10:52:36 [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 [post_excerpt] => [post_status] => publish [comment_status] => closed [ping_status] => closed [post_password] => [post_name] => mikro-classifier [to_ping] => [pinged] => [post_modified] => 2021-05-22 02:46:44 [post_modified_gmt] => 2021-05-22 06:46:44 [post_content_filtered] => [post_parent] => 0 [guid] => [menu_order] => 0 [post_type] => hm-products [post_mime_type] => [comment_count] => 0 [filter] => raw ) [18] => WP_Post Object ( [ID] => 1046 [post_author] => 2 [post_date] => 2015-01-06 10:52:36 [post_date_gmt] => 2015-01-06 10:52:36 [post_content] => [post_title] => Polymer Systems Hot Melt Granulator [post_excerpt] => [post_status] => publish [comment_status] => closed [ping_status] => closed [post_password] => [post_name] => polymer-systems-hot-melt-granulator [to_ping] => [pinged] => [post_modified] => 2021-05-22 02:46:00 [post_modified_gmt] => 2021-05-22 06:46:00 [post_content_filtered] => [post_parent] => 0 [guid] => [menu_order] => 0 [post_type] => hm-products [post_mime_type] => [comment_count] => 0 [filter] => raw ) [19] => WP_Post Object ( [ID] => 1093 [post_author] => 2 [post_date] => 2015-01-06 10:52:36 [post_date_gmt] => 2015-01-06 10:52:36 [post_content] =>

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 [post_excerpt] => [post_status] => publish [comment_status] => closed [ping_status] => closed [post_password] => [post_name] => micron-drymeister-flash-dryer [to_ping] => [pinged] => [post_modified] => 2020-10-28 12:41:29 [post_modified_gmt] => 2020-10-28 16:41:29 [post_content_filtered] => [post_parent] => 0 [guid] => [menu_order] => 0 [post_type] => hm-products [post_mime_type] => [comment_count] => 0 [filter] => raw ) )
Lactose

 

Lactose is a by-product of milk. Today, lactose is widely used in the pharmaceutical, food, and confectionery industries. The purest form of lactose is used in pharmaceutical applications as an excipient. It is a compound that is chemically inert, aids in the manufacturing process, and enhances bio-availability. The first major use of lactose was as a medium to grow penicillin, but it is now more commonly used as a binder and filler in tablets and capsules. Lactose’s use in food and confectionery products stems from its low sweetness, ability to bind flavorings and capability to increase shelf life. As human milk contains approximately 7% lactose compared with bovine milk content of 4-5%, it is added to cow’s milk in the preparation of infant formula.

Lactose is also used in the production of other compounds like Lactitol, which is used in diabetic products and low calorie sweeteners. 

The worldwide market for dairy ingredients, including milk powder, whey ingredients, and lactose, was approximately 42 billion dollars in 2013 and is expected to grow to over 50 billion dollars by the end of 2018. The current global market demand for dairy products and ingredients has a compound annual growth rate of 2.8%. This exceeds the current global milk supply growth rate of around 1%.

Lactose is a simple sugar in milk and is a major component of whey.  Lactose is purified from the whey produced as a byproduct of the cheese and casein industries. Several million tons of lactose is produced annually. Lactose is purified to make food and pharmaceutical grade lactose in a process shown here involving evaporation, crystallizing, centrifuging, filtering, drying, and milling. 

Since lactose is classified as an ST-1 explosion rating, the milling system must be designed to safely handle any dust explosion. The system shown here is designed for an over-pressure situation with Isolation valves on the inlet and outlet of the system.

There are a few options for size reduction systems to process lactose depending upon the final particle size required. The Mikro UMP Universal Mill is capable of the fine grinding of lactose from 500 microns to 25 microns. The mill is available with different grinding elements and will produce a final product with good flow characteristics and a low amount of fines.

Air classifier milling systems offer the additional advantages of sharp top-size control, steep PSD distribution, ease of operating parameter adjustments, and cooling of heat sensitive products due to the higher air flow requirements of that type of system.

One of the most important factors in the mill system design is an ability to clean the mill and system. The Mikro ACM Air Classifying Mill – Model EA  is equipped with a hinged cover for easy access. The internal components are designed to be easily removed for cleaning. In principle, all the components of smaller systems can be washed in place (WIP) or easily dis-assembled for cleaning. As an example, victaulic couplings can be used to quickly disconnect the system ductwork for cleaning.