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 Research Paper Wall Pressure Feeder-Load Interactions in Mass Flow Hopper/Feeder Combinations - Part II The interactive roles of mass flow bins and feeders are discussed. The effect of feeder speed, gate height, clearance between the hopper outlet and the feeder surface, method of filling, rate of filling an wall pressures own mass flow bins and feeder load and power requirements of the feeders are hi…read more
Case Study Vemiwa Relies on Coperion Technology for Manufacturing High-Quality Plant-Based Food Products Regional, sustainable, and highest quality: Start-up Vemiwa Foods GmbH in Königsbrunn, Germany, produces plant-based food products according to these quality parameters and relies on Coperion technology to achieve them. Using the Coperion ZSK 43 Mv PLUS food extruder in hybrid version and Coperion …read more
bulk solids handling Journal Research Paper Principles of Hydraulic and Pneumatic Conveying in Pipes The principles for the calculation and the design of pneumatic and hydraulic conveying plants cannot be fully treated within the space available here. Only some essential points will be discussed which are related directly to the pipe flow of solid-fluid mixtures and which relate to the actual conve…read more
bulk solids handling Journal Research Paper Increase of the Suction Head by Means of the "Air-Lift" Method The use of suction methods for cleaning operations in inaccessible holes has many practical advantages. A major difficulty is the limited suction depth which can be achieved in normal use this being controlled by the atmospheric pressure, allowing only 10 m suction head in the case of water. Th…read more
bulk solids handling Journal White Paper Piston and Piston Diaphragm Pumps for Long-Distance Hydraulic Conveying For the hydraulic long-distance conveyance of solids, principally piston and piston diaphragm pumps are employed. The selection criteria for the economic employment of piston and piston diaphragm pumps are essentially the abrasiveness of the solids, the conveying pressure and the solids particle gra…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 Design and Application of REINFORCED EARTH Storage Slots The author reviews the properties of REINFORCED EARTH in the construction of storage slots and holes. Examples are given of the increasing use of these structures in the storage of coal and attention is drawn to the suitability of the technique in the storage of other materials as shown by recent co…read more
bulk solids handling Journal Case Study Port of Bristol Bulk Handling Terminal In early 1991 Balfour Beatty, one of Britain's major civil construction companies and Birtley Engineering, the country's largest bulk handling contractor, formed a joint venture to tender for the major importation terminals which were planned by the two major power generators in the U.K., National…read more
bulk solids handling Journal Technical Article Plastic Pipes for Hydraulic Transportation of Solids Plastic pipes in particular High Density Polyethylene (HDPE) have found wide acceptance for the hydraulic transportation of bulk materials. This paper discusses the basic properties and applications of the various types of plastic pipes currently available. read more
bulk solids handling Journal White Paper Pneumatic Plant for Discharging Ship's Cargo Some special techniques in the field of pneumatic conveying are described and general operational and technological aspects for unloading bulk ships are discussed in detail. Machinery for unloading ships has been known for as long as goods have been conveyed on rivers and canals. One of the mos…read more
Case Study Bespoke Electric Winch ensures safe and smooth Loading of Heavy-Goods Vehicles (HGV) The recent supply by Hoist & Winch of a bespoke electric-powered winch to a UK building products company is allowing the safe and smooth lifting and lowering of a large telescopic export chute that loads heavy-goods vehicles (HGVs) with a media byproduct from the customer’s production process.…read more
bulk solids handling Journal Technical Article Latest Developments in Coal Handling for Self-Unloading Ships and Barges The purpose of this paper is to describe he various types of self-unloading vessels and emphasize their economics. For most ship owners or designers, self-unloaders mean the Great Lakes type not realizing that the same or modified systems could be used elsewhere. Hopefully some clarifications are co…read more
bulk solids handling Journal Case Study An Important Achievement in a U.S. Cement Plant The installation of a mobile toothed roller crusher which can handle widely differing large size hard and dry as well as moist and sticky materials and its technical data are described, as well as the reclaiming machines which recover these products from stockpile. An innovative approach led to an e…read more
bulk solids handling Journal White Paper Can you go with the Flow? Solids Flowmeters for Industrial Applications Solids flowmeters are an interesting solution to indicate flow rates in pipes and chutes. “Interesting” because they are only moderately accurate, costly, require a lot of tuning after installation and are usually only as good as the whole process around them. Nevertheless, the technology exists…read more
bulk solids handling Journal White Paper Circular Blending System for Coal PHB Weserhütte (PWH) have built and recently commissioned two circular stockpile systems which are used to stack, homogenize and reclaim raw coal for Gewerkschaft Sophia Jacoba in Hückelhoven, Germany. The total system is the first circular stockpile blending plant of its kind in the world and bec…read more
bulk solids handling Journal Case Study Railroading of Phosphate Agrico Chemical Company, a leading phosphate producer and processor in Florida s Bone Valley area, is the proving ground for a new manual door operating system which Ortner Freight Car Company has developed for its Rapid Discharge aggregate car. Dubbed the Versalok, the new system enables one man to…read more
Case Study Metso: The first GP330 Cone Crusher in Germany proves its Reliability at BAG Rammelsbach Quarry “Reliability of operation is clearly the number one target for us. With our new Nordberg® GP330 cone crusher we have secured a trouble-free, continuous secondary crushing process that enables us to produce daily some 4,000 tons of high-quality aggregates.” This is how Production manager Kurt S…read more
bulk solids handling Journal Technical Article Pneumatic Conveying of Bulk Solids Through Pipelines This article describes the pneumatic conveying of powdered and granular solids through pipeline systems. Other means of pneumatic conveying, such as airtube mail transport systems or air slide systems, or conveying systems in which large items are moved on air cushions, will not be discussed here. 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 Research Paper Load Stability of Bulk Cargoes during Ship Transport The safe ocean transport of bulk cargoes on large bulk ships is vitally dependent on the stability of the cargo under the influence of the rolling, pitching and yawing motion of the ship and the transmission of vibration from the ship’s engine and propulsion machinery as well as wave motion induce…read more
bulk solids handling Journal White Paper Design of Coal Storage Barns Using Reinforced Earth The concept of large capacity gravity flow storage barns with steeply sloping interior sidewalls is coming into widespread use at various process and transportation interfaces of both producers and users. Such storage facilities with their high-volume discharge capability provide many economies in l…read more
bulk solids handling Journal Technical Article Continuous Versus Discontinuous Shipunloading This paper compares the advantages, disadvantages, and status of grab and continuous coal unloading systems for ocean-going ships. read more
bulk solids handling Journal White Paper Mining with a Shortcut: A gentle Alternative to Drilling and Blasting The deposit of Shenhua Beidian Energy is the first mine in China where surface miners are used for efficient coal mining that is gentle on the environment at the same time. The mining method has been specifically chosen because it entirely dispenses with drilling and blasting operations and the need…read more