bulk solids handling Journal Technical Article Roll-On/Roll-Off by Krupp Fördertechnik During the past few years, there has been an increasing request by clients for the delivery of fully-assembled and tes ed ship un loaders. read more
bulk solids handling Journal White Paper Dust-free Ship-Unloading: Loading Chutes for clean and safe Transfer of Cement Cement is a bulk material handled in charges of tens of thousand tons down to bags of a few kilogram. The bulk transport in ships needs a high-performance transfer system, which, if need be, can change between various unloading points. read more
White Paper Conveyor Belting – Who sets the standards? Conveyor belts are required to handle an extremely diverse range of demands from wear, tear and impact damage right through to ozone and ultra violet radiation. With those demands comes an almost bewildering range of test methods and quality standards applied to each individual demand. In this speci…read more
bulk solids handling Journal White Paper The Siwertell Bulk Discharger Siwertell of Bjuv, Sweden, have for several years been manufacturing ship dischargers using the principle of transmission of bulk materials by totally enclosed screw conveyors. The paper centres on the assessment of the 350 t/h screw type discharger ordered from Siwertell by the Forth Ports Aut…read more
bulk solids handling Journal White Paper Truck Scales: Exactly – Essential Checks for Truck Weighing Scales to Perform Flawlessly Truck scales are the “heart” of many applications in the sand, gravel and aggregates industries - their metering results are used to estimate the producers revenues. To neither lose money nor best the client the scales need to be kept in optimum working conditions. read more
bulk solids handling Journal White Paper From Garbage to Gold – Belt Scale Applications made easy even in demanding Environments A heavy-duty, high accuracy, full-frame single idler belt scale, Siemens Milltronics MSI is used for process and load-out control, providing continuous in-line weighing on a variety of products in primary and secondary industries. read more
bulk solids handling Journal Case Study The Siwertell Coal Unloader at Kingsnorth The Siwertell ship unloader is a continuous bulk unloader, that has been used extensively to unload cement, grain and feedstocks, and minerals. More recently, it has been used for unloading coal, and two Siwertells have been purchased by the Central Electricity Generating Board (CEGB) in Great Bri…read more
bulk solids handling Journal Case Study The Tuticorin Coal Terminals: Features of an Unloading Facility for TNEB’s Power Plants In Tuticorin, India, Tamil Nandu Electricity Board operates a five-units coal fired power plant, that receive coal via rail and sea route. Although shore-mounted continuous unloading systems were also considered during the development of the terminals, geared vessels with mounted grab unloaders made…read more
bulk solids handling Journal Technical Article Variable Torque Drives – Advantages of Hydraulic Motors in Bulk Material Handling Applications To design a drive chain as close as possible to the output required can be very challenging. If the maximum load differs widely from normal operating load, safest solution is to select a drive which is compatible for both maximum load and maximum speed. read more
bulk solids handling Journal Technical Article Bulk Materials Storage Design: Considerations for the Design of Materials Handling Storage Plants Bulk material storage is either used for buffering between different handling/processing steps (e.g. ahead of the washing plant in mines) or as an “equalizer” in batch-wise working processes. Associated problems and counter measures are described hereafter. read more
Advertorial White Paper Avoiding the Rip off – A Guide to Chevron Conveyor Belts Chevron profile conveyor belts are a key component on a huge variety of mobile plant and equipment. Despite the important function they fulfil, very little is known about them technically. As a consequence, even less is understood as to why some are so much more efficient and less troublesome than o…read more
bulk solids handling Journal White Paper Pneumatic Ship Unloading Plants for Poorly Flowing Bulk Materials The pneumatic discharge of free flowing materials has been realised for nearly a hundred years. The situation with respect to poorly flowing materials Is rather more difficult; until recently manual labour was used to loosen the product in the region of the suction nozzle. The author considers two l…read more
bulk solids handling Journal Technical Article How to divide a Pneumatic Conveying Stream – Splitter for continuous Distribution of Bulk Solid Material during Pneumatic Conveyance Worldwide, a high number of so-called splitters as elements of pneumatic conveying lines are in operation, in order to continuously distribute the conveyed bulk material to several receiving stations. The present article provides an overview over the possible applications and typical configurations …read more
Case Study Siemens: Gearless Conveyor Drives help Mines in South America to transport large Volumes economically In many parts of the world, ore content in deposits is decreasing. The result is that more and more overburden has to be transported to receive a certain quantity of minerals. That puts equipment to the test, particularly the conveyors. However, with advancements in drive technology, such as the Sie…read more
Case Study Oilseed Elevator Upgrade – Capacity Upgrade and hygiene Improvements The largest UK producer of rapeseed / canola oil recently upgraded their main silo feed elevator to incorporate 4B's advanced anti-static AM Nyrim elevator buckets. Increasing capacity by reducing material build-up in the buckets and improving hygiene throughout the production process. read more
bulk solids handling Journal White Paper Straightforward and Flexible – Mobile Stockyard Equipment for Stockpiling, Reclaiming & Truck Unloading Mobile stockyard equipment can offer a cost efficient alternative to traditional systems, especially when developing new greenfield sites. With no civil requirements/limited planning permission, the equipment is perfect for the initial "start-up phase" of a project. read more
bulk solids handling Journal Case Study East Asia’s largest Bucket Wheel Excavator – Success for Tenova Takraf’s BWE System at Zhahanaoer Mine in China In Inner Mongolia the specialists from Leipzig-based open pit mining equipment supplier Takraf installed an excavator-conceyor-spreader system, that is aimed at improving China’s lignite mining capacity. read more
bulk solids handling Journal Case Study Fresh Air for Cement Plants – Loosen, Mix and Transport Powdery Goods with Compressed Air Compressed air is often essential for transport, loosening and/or homogenisation tasks in producing powdery goods. This also applies to cement plants, where large numbers of screw compressors and positive displacement blowers are used in the production process. read more
bulk solids handling Journal White Paper Tubular Drag Conveying – A Cost-Effective and Energy Saving Alternative to Pneumatic Conveying While pneumatic conveying has advantages in specific applications, a totally enclosed tubular drag conveyor can offer similar advantages, while also mitigating material degradation and separation, maintaining low energy consumption and reduced explosion risk. read more
Case Study Upgrade of Chain Conveyor for Corrosive Products A 4B customer was struggling with their drag chain conveyors transporting a corrosive by-product of crude oil processing. The chain was breaking and wearing fast, causing much downtime and production-time loss due to the repairs required on the conveyors. 4B resolved the problem with heavy duty link…read more
bulk solids handling Journal Technical Article In-Pit Crushing and Conveying Bench Operations – Assessing the Truckless Mining Option In-Pit Crushing and Conveying systems are attracting global interest for their significant sustainability benefits and potential to reduce operating costs. The selection of the most appropriate materials handling system for a given operation must consider economic, social, environmental and technica…read more
bulk solids handling Journal Case Study Stacker and Shiploader at the Port Kembla Coal Terminal The Port Kembla Coal Terminal stockyard consists of two stacking conveyors on the outside of the piles and initially one, and in the future two reclaim conveyors between the piles Each stacking conveyor has two rail-mounted stackers. The ship loading system is interruption free. It utilizes two…read more
bulk solids handling Journal Research Paper Contact Forces in Hexagonal Idler Housing of Pipe Conveyor – A Mathematic-Statistical Evaluation The development of pipe conveyors is not yet finished. Parts with the lowest lifetime, i.e. the moving conveyor belt and the idlers are tested before the conveyor is being put into operation. The design of the supporting construction is adjusted toby practical experience and tests on various experim…read more
bulk solids handling Journal Research Paper Determination of the Bulk Flexure Resistance via coupled FEM-DEM Simulation The bulk material on a belt conveyor deforms itself due to the run through idler stations. The deformation results in energy losses which are summarised in the bulk solid flexure resistance. The right understanding of the interaction between bulk material and idler stations is important for the pred…read more