PRODUCTS & APPLICATIONS MIXING, WEIGHING & CONVEYING MEETING EXACTING DEMANDS
Hosokawa Micron has recently won an order to supply a fine milling system that meets the demands of Exwold Technology, a contract chemical processing company. With an exacting requirement for a pesticide formulation milling system able to achieve throughput rates of 900kg/hr and a particle top size limitation of 15 microns, the contract was awarded based on Hosokawa’s technical expertise, project management capability and the ability of its equipment to meet the target requirements. “The customer specialises in
formulation and processing for the Crop Protection and Speciality Chemicals markets, providing toll processing services on a worldwide basis. We were happy to support through extensive product trials carried out at the Hosokawa Alpine test centre to ensure correct mill selection and operating parameters to meet the customer’s needs,’ explained John Buck, area sales manager, Hosokawa Micron.
Hosokawa Micron supplied a 630
AFG Fluidised Bed Jet Mill with integral 315 ATP Classifier which is capable of producing the top size requirement with tight particle size distribution. This configuration gives the customer highly efficient and accurate particle sizing across the high volume throughput.
The stainless steel milling system is
fully ATEX compliant and built to 10 Bar pressure resistant design. The crevice free design of the mill and integral classifier helps ensure full product evacuation whilst the WIP nozzles allow easy cleaning for contamination-free production between batches. Kevin Martin, managing director,
Exwold Technology, said: “This new milling system is highly efficient and enables us to produce high volumes of powders to exacting particle size to meet the demands of new and existing customers.”
Hosokawa Micron
www.hosokawa.co.uk
When weighing, the balance axis must be parallel to the force of gravity to fully register this force and accurately report the result of its measurement. This is understood as weight. Therefore, making sure the instrument is level is an important way to avoid the sensitivity errors that disrupt results. As part of its 2017 e-Calendar series, METTLER TOLEDO is
offering a downloadable reference paper entitled “Getting Weighing Right: The Importance of Leveling a Balance.” This paper will help readers understand gravity’s role in weighing and provides tips on balance handling and balance technology that will help guarantee level weighing and avoid errors. A balance can quickly fall out of level—for example, when the
balance is moved for better access to the space around it for cleaning. Especially when weighing small samples, these tiny shifts can result in errors higher than established tolerances. Worse, once they occur, their effects propagate down the processing chain and impact on product quality
Mettler Toldeo
www.mt.com WEIGHER DELIVERS DAMAGE-REDUCING PERFORMANCE
A special ‘gentle slope’ multihead weigher from Ishida Europe has enabled Spanish manufacturer Congalsa to introduce a new product – tuna pasties. Manufacturers already in the
market had encountered a fragility problem with this type of food product. Any damage to the corners of the frozen pasties structurally weakens them, making them liable to leak their contents during the frying process. To overcome it, they packed the pasties by hand into moulded plastic trays, which were then placed in boxes. Congalsa’s strategy was to
deliver an authentic, home-made taste, with a higher percentage of tuna than existing products. Achieving this commercially
involved adopting a different packing concept: using the speed, hygiene and labour-saving potential of multihead weighing to bag the pasties before boxing. However, multihead weighing had one disadvantage: a breakage rate, taking place largely in the weigher or at the weigher/bagmaker interface. The extent of such damage could only be evaluated by inspecting the already sealed bags and removing the broken pasties by hand. The solution, supplied through
Barcelona-based CIMA, Ishida’s distributor in Spain, was a Gentle Slope Ishida model. The 14-head weigher is configured so that radial feeder angles are shallower than usual. Drop distances between feeders and pool hoppers and
GRAVITY AND THE ROLE IT PLAYS IN WEIGHING
between pool hoppers and weigh hoppers are kept to a minimum. A ring shutter halves the distance that the product must fall from weigh hoppers to bagmaker. The weigher is also able to make many more combination calculations per second (which enhances speed and accuracy) and has a self-tuning vibratory system.
Ishida Europe
www.ishidaeurope.com
CONVEYOR WATCHDOG
4B Braime Components has released the fourth generation Watchdog control unit for monitoring bucket elevators and conveyors. The Watchdog Super Elite (WDC4) processes signals from up to 15 sensors for belt speed, belt misalignment, continuous bearing temperature, pulley misalignment and plug conditions on bucket elevators or conveyors. When an alarm condition is detected, the system will log the details, sound an alarm and provide shutdown control of the elevator/conveyor and feeding system. A 3.5” LCD screen displays the system status at a glance. The WDC4 model now supports belt speed monitoring for variable frequency drives, and belt misalignment inputs for contact, pulse and temperature sensors.
4B Braime Components
www.go4b.com
CONVEYOR COPES WITH MULTIPLE MATERIAL SOURCES
A new Flexicon flexible screw conveyor with trough hopper can receive material from multiple outlets of feeders, grinders, blenders and other process equipment.
The hopper features an extended-length charging adapter that exposes 1143mm of the flexible screw rotating within an inclined U-shaped trough to charge material entering the hopper at any point. The inner screw is the only
moving part contacting material, and is offered in numerous designs to handle both free- and non- free-flowing materials including
12 MAY 2017 | PROCESS & CONTROL
products that pack, cake or smear, with no separation of blends. As it rotates, the flexible screw self- centres within the tube, providing ample clearance between the screw and tube wall to eliminate or minimise degradation. Material exits the conveyor below the drive point, precluding contact with bearings or seals. The hopper is equipped with a
stainless steel grate for worker safety, and to prevent oversized particles entering the conveyor. Smooth, crevice-free surfaces
of the screw and tube interior allow in-place flushing with water, steam or cleaning solutions
through a lower clean-out cap and/or upper discharge housing. The flexible screw can also be removed through the clean-out for separate sanitising and inspection of the polymer conveyor tube and stainless steel hopper, as well as the screw.
Flexicon
www.flexicon.co.uk
/ PROCESS&CONTROL
Page 1 |
Page 2 |
Page 3 |
Page 4 |
Page 5 |
Page 6 |
Page 7 |
Page 8 |
Page 9 |
Page 10 |
Page 11 |
Page 12 |
Page 13 |
Page 14 |
Page 15 |
Page 16 |
Page 17 |
Page 18 |
Page 19 |
Page 20 |
Page 21 |
Page 22 |
Page 23 |
Page 24 |
Page 25 |
Page 26 |
Page 27 |
Page 28 |
Page 29 |
Page 30 |
Page 31 |
Page 32 |
Page 33 |
Page 34 |
Page 35 |
Page 36 |
Page 37 |
Page 38 |
Page 39 |
Page 40 |
Page 41 |
Page 42 |
Page 43 |
Page 44 |
Page 45 |
Page 46 |
Page 47 |
Page 48 |
Page 49 |
Page 50 |
Page 51 |
Page 52 |
Page 53
