“What's New?” in flour milling equipment

by Teresa Acklin
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The annual A.O.M. trade show offers an opportunity for flour millers to check out the latest technological advances, and particularly noteworthy developments are featured in the “What's New?” program. After reviewing numerous submissions, the A.O.M. program subcommittee each year chooses 12 products for inclusion in the program. A summary of 1998 “What's New?” products follows.


   Easy maintenance access based on a compact design is a key feature associated with the new Aerzen Delta Blowers offered by Aerzen U.S.A. Corporation, Coates-ville, Pennsylvania, U.S. Because all maintenance can be performed on one side of the blower, it can be placed against a wall or in a corner to save space.

   Automatic and consistent belt tension with a hinged motor plate does not require the use of spring loading. This feature increases belt life, maintains drive efficiency at a constant high level, prevents overloading motor and blower bearings and reduces maintenance. No absorption material is located downstream of the intake filter element, thus keeping noise levels low.

   All components of the Aerzen Delta Blower are designed specifically for low pressure drop and high efficiency. The electric power that is required per kilogram of air delivered by the blower is the lowest in the industry. The machine also has a pulsation cancellation feature that uses three-lobe rotors.


   Grinding clean middlings and intermediate mill products to release a high percentage of low ash flour is the purpose behind Braibanti Golfetto's latest development in impact technology.

   The GSI Intensive Pin Mill, which is best suited for North American wheat, is able to control the release of flour by adjusting the grind during the middle of a run. This feature has allowed the GSI to be used as an alternative to a traditional rollermill. Other features of the machine include a cast iron grinding chamber that is mounted on four legs, rotor, stator and an adjustable grind control system.

   The product enters the grinding chamber through the gravity spout and from there is propelled by centrifugal force across the rotor where the particles collide with one another, resulting in particle size reduction. The product goes from the grinding chamber to the plansifter, where the flour is separated.

   The GSI Intensive Pin Mill is equipped with conical pins that give the machine tremendous flexibility to mill a wide variety of wheat types. The GSI can produce flour of a specific quality in a simple, accurate, repeatable and low maintenance manner.


   The MSDE micro-differential proportioning scale, available from Buhler Inc., Minneapolis, Minnesota, U.S., is the latest product designed for high-precision proportioning of freeflowing to non-free-flowing bulk materials such as flour additives and baking aids.

   The modular unit provides high-precision regulation of a continuous stream of material based on the throughput range selected, as well as accurate weighing of small batches based on formula specifications. The weight or the proportioned quantity of material is measured and made available to master and process control systems.

   The unit is also capable of processing proportions of small quantities of materials into continuous blending systems, proportions of vitamins into the stream of flour at the end of the mill, dry gluten into a low-protein stream of flour, flour improvers into a bread flour mix and many other functions.

   Constructed with streamlined geometry, the proportioning scale operates trouble-free, complete with an easy-to-use MEAE controller with analog and serial standard interfaces. The unit has a wide control range of 1:25.


   The unique multiple outlet design of the Mega Cleaner from Cimbria Bratney Co., Des Moines, Iowa, U.S., provides versatility that allows the cleaner to easily adapt to product and application changes. Each screen deck is divided into three sections that are equipped with four outlets capable of making four different separations. The design also provides isolation of by-products to maximize resale value of screenings.

   The fully balanced “Drive Boss” eccentric system allows for easy mounting on elevated structures without an expensive support system. The eccentric system also eliminates the transfer of resonant vibrations to the building and other process machines. Lifetime value and no concern for long term damage are other benefits of the “Drive Boss” eccentric system.

   An extra wide screen and channel located on the delta Mega Cleaner allow for better cleaning performance and higher capacities, while the three way inlet flow divider reduces labor costs and eliminates down time between product changes. The full-width vibratory feeder, where product drops uniformly into the air stream, improves air separation. The feeder assures an even flow across the full width of air stream and screen deck.


   Advancements in clean out, sampling ports and grain level control are examples of added features developed for the new 2533 Disc Cylinder Separator by Carter Day International, Minneapolis, Minnesota, U.S. The 2533 DCS can provide five separations in only one pass.

   The incoming wheat passes through the splitter discs and seed discs where it is processed by the oat or seed cylinder. The 2533 DCS then analyzes kernel size to categorize the wheat for further processing as long clean wheat, small clean wheat, oats or seeds.

   The 2533 DCS comes complete with a new drive package that includes a shaft mounted gear reducer drive. The No. 3SI Uniflows are maintained with individual speed control, and the 2533 DCS's flow configuration allows for additional stacking of 3SIs. Integrated re-oat and re-seed cylinders provide increased capacity.


   With phase-out dates for methyl bromide rapidly approaching, officials at Fumigation Service and Supply Inc., Indianapolis, Indiana, U.S., have developed an alternative fumigant. ECO2 FUME fumigant gas, comprised of 2% phosphine and 98% carbon dioxide, is one of the latest alternative fumigants to be proposed for use in the United States.

   The environmentally friendly fumigant is dispensed directly from the cylinder into the sealed storage area, where it takes action in a matter of hours, regardless of moisture or temperature levels. ECO2FUME fumigant gas addresses the major issues of shut down time and corrosion and is effective in both sealed and unsealed storage facilities. It has been in use in Australia for the past 10 years, with 9 million tonnes of grain treated with the fumigant last year.

   The ability to vary concentration levels and exposure times is one of the fumigant's greatest assets, particularly in unsealed storage facilities. The advanced airflow dynamic design of the dispensing system enables operators to maintain a continuous stream of ECO2FUME fumigant gas.


   An easy-to-install, maintenance-free on-line pipe weigher and baffle pipe scale are available from Vibronet, Lahnau, Germany. The new design gives the on-line pipe weigher a high degree of accuracy and allows the miller to get a good understanding of the performance of his product.

   Assembly requires the pipe weigher to be mounted so that its mid section with the weighing cell connected is exactly vertical. Inflow then occurs through the 90° descending brake. The construction of the pipe weigher keeps strong vibrations to a minimum.

   The material to be measured is sent through the pipe elbow that is suspended in a weighing cell. The weighing cell, which is located in direct proportion to the throughput volume, then gives off an electronic signal that is amplified and processed in the electronic evaluation system.

   The digital display on the scale shows the current performance in tonnes per hour and monitors the results within the two set limit values. Based on the numbers given by the electronic signal, another electronic device calculates the weight running through the pipe weigher and displays it on a reset counter.


   The SDA-500, a new double purifier model offered by Ocrim America Inc., Minneapolis, Minnesota, U.S., provides a sanitary, spout-through body design complete with a new, patented mechanical drive, which gives added performance compared with vibratory models. The mechanical drive guarantees synchronism of the eccentric masses during start/stop and normal running. One motor belt, instead of two, helps maintain flow balance.

   The SDA is a stackable purifier with 500-mm wide sieves on three decks and two independent exhaust hoods. The exhaust hood is inclined to allow for cleaning, and the exhaust, which is adjusted by 32 patented wing shaped valves, allows for independent air control on the entire width of every fourth of each sieve.

   The superimposability of the SDA-500 is an important feature that benefits buildings with limited space. A gravity self-adjusting valve, light alloy sieves, aspirated inlet boxes and user-friendly adjusting hardware are additional features of the new double purifier.


   Satake U.S.A. has introduced its latest variety of machinery, the Satake Kernel Washer/Hydrator SHD. Through a process of intense cleaning, the washer is able to clean the kernels in such a manner that better prepares them for further processing in the hydrator. The hydrator is a grain tempering mixer that is specifically designed to provide high levels of moisture addition in a single operation. Absorption of up to 8% moisture is guaranteed based on the use of vibration, which allows excellent water dispersion combined with slow stirring and a long dwell time.

   With no free surface moisture the possibility of encountering any temper bin discharge problems in the hydrator are eliminated. The hydrator allows for a simplified tempering system that reduces the need for additional bin space.


   The Multi-Port Wye Line Diverter, offered by Salina Vortex Corporation, Salina, Kansas, U.S., achieves an efficient use of personnel and enhances material processing options as a result of its completely automated transfer of dry material from multiple sources to multiple destinations.

   The diverter assembly is capable of conveying material from: six sources to six destinations, simultaneously; one source to any one of nine destinations; or five sources to 19 destinations. The new multi-port diverters allow custom-built valve assemblies to operate under complete computer control, making pneumatic conveying a “point and click” procedure. This procedure reduces the risk of human error and removes the possibility of any job-related injuries.

   Other benefits of the new diverters include no material spills, no errors in manually switching hoses, elimination of safety hazards associated with moving heavy hoses and the elimination of hose manifold stations.


   As the only American-built flour mill with CE Certification for use in European countries, the Kice Shortflow Mill relies on its modular, compact, heavy-duty design as its trademark. With the introduction of the Kice Model 3 Shortflow Mill from Kice Industries, Wichita, Kansas, U.S., the capacity of the shortflow mill has become even larger.

   The 136-tonne unit is an expansion of the previous 91-tonne and 45-tonne units, but still includes all of the features that make the unit so successful. The modular design allows for ease of transportation and short assembly time. Because the mill is compact and requires little floor space and height, installation can occur in an inexpensive warehouse-type enclosure requiring only footings and concrete slab floors. With the modular design, future expansion is also more convenient.

   Simple, automated operation is the goal of the Kice Shortflow Mill, and a programmable logic controller that controls the process keeps manual labor to a minimum. All operator functions are carried out at a console with keypad terminal and color CRT screen. Low building costs, low capital investment, low power consumption, easy to expand capacity and high quality equipment are benefits the Kice Model 3 Shortflow Mill can offer.


   Developed with a priority given to a high level of sanitation and ease of maintenance, the Big Swing Model BS 75-50V purifier from Sangati Berga S.p.A., Padova, Italy, represents a new design approach for the processing of durum semolina, hard wheat and soft wheat stocks. The new purifier has two sieve shoes each having three sieve levels with sizes of 500 x 500 mm. The sieve shoes can be combined to serve as one machine or they can be separated to function as two distinct purifying units. An added feature on the Big Swing model provides access between the sieve shoes while the units are separated. This is done to accommodate spouting, which can pass through the center of the machine as opposed to the front of the machine, preventing obstruction for supervisors or operators.

   The distance between the two sieve shoes ranges from 200 to 500 mm. This feature is different from conventional purifiers where the distance is fixed. The variable distance between sieve shoes of the Big Swing model enables the purifier to be installed in plants and buildings of all sizes. The purifier can also accommodate various sizes of sieve arrangements. For example, one half of the machine can have a 750-mm wide sieve section while the other half can have a 500-mm wide sieve section.