bulk solids handling Journal White Paper In-Pit Crushing and Conveying The author reviews the factors leading up to the selection of In-Pit Crushing and Conveying technology and discusses the currently available options in equipment selection. read more
bulk solids handling Journal Technical Article Raw Material Storage and Blending Solutions – Parameters for Selecting the best available Solution For new stockyard projects, operators must consider capital costs and the operational efficiency of equipment and must choose between the virtually infinite possibilities offered by the market. Homogenisers, blenders or storage only and circular or linear storage are the main decisions. 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 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
bulk solids handling Journal Technical Article The Development of Bucket Wheel Excavators During the Last Fifty Years This article reviews the important development steps in the manufacture of bucket wheel excavators during the past 50 years. New developments and technical improvements in the areas of crawler drives, slewing gear, the bucket wheel, and the conveyor belt of the wheel boom are presented in detail. A …read more
bulk solids handling Journal Technical Article Belt Weighing Test Facility at Warren Spring Laboratory The economic and other advantages of belt weighers are reviewed and a history of research into belt weighing at Warren Spring Laboratory (WSL) is given. The paper then describes the aims and objectives of the present Belt Weighing Co-operative Project, which includes industrial sponsorship, and its …read more
bulk solids handling Journal Case Study A New Bucket Wheel Excavator Complex for the Goonyella Mine A bucket wheel excavator – conveyor system – spreader complex will be put into operation in Australia for the first time in particularly difficult winning conditions. These difficulties were taken into account by the exceptional stipulations laid down for the layout of the machines. The complex …read more
bulk solids handling Journal Case Study Reclaiming Gold and Uranium in South Africa Bucket wheel excavators coupled with mobile conveyor systems are used almost exclusively in open-pit operations for removing overburden and mining minerals. The purpose of this article is to describe the technically and economically successful application in a new field, viz. reclaiming sli…read more
bulk solids handling Journal Case Study World's Largest Purpose Built Cement Carriers The world's largest purpose built cement carriers Castillo de Javier and Castillo de Monterrey are fitted with a Carlsen pump/Weibull screw system for self unloading. The article reviews the principle of this Carlsen Pneumatic Bulk Screw System" and describes the implementation of the system in thes…read more
Case Study Using Level Sensors For Inventory Control Level measurement is one of the most common parameters measured in process industries. Level sensors use various technologies to measure the level of solids in a silo or bins. The amount of material on hand is calculated using data such as the size of the storage vessel, the distance to the mat…read more
bulk solids handling Journal Technical Article The Increased Use of Belt Conveyor Self-Unloading Vessels - A Coming Development in Ocean Bulk Shipping The author underlines the importance of self-unloading vessels for Great Lakes shipping and explains the reasons why and how belt conveyor type self-unloading bulk carriers are being used or planned to be used to an ever increasing extent for bulk movements on ocean routes. A survey of major shippin…read more
bulk solids handling Journal Research Paper Flow and Pressure during Centric and Eccentric Discharge in Cylindrical Silos This article presents an experimental investigation of the flow pattern and wall pressure due to centric and eccentric discharge. The experiment were performed on a metal silo prototype using corn as a granular material. The silo prototype used in the study was built of a metallic cylinder, which ca…read more
bulk solids handling Journal Case Study Overburden Stacker for Loy Yang Open-Cast Mine This case study describes the new overburden stracker in the most recent expansion project of the S.E.C. of Victoria. Design details and technical data are given. Following Morwell and yallourn, the Loy Yang open-cast mine is the most recent expansion project of the State Electricity Commission…read more
bulk solids handling Journal Technical Article Output and Availability Factors of Bucket Wheel Excavators under Actual Mining Conditions The author defines the term "theoretical output" [bm³/h] as basic value for the assessment of the short and long time effective output [bm³/h] of bucket wheel excavators. Approximately 40 bucket wheel excavators operating in over burden on four continents, are analyzed on the…read more
bulk solids handling Journal White Paper Modular Walking Draglines The development of walking drag lines is presented in the context of current operational requirements and the design and development philosophy of the new breed of modular walking drag lines is outlined in detail. read more
bulk solids handling Journal Case Study Floating Pneumatic Unloaders The unloading of bulk dry solids from ships is possible in a number of ways. Where fixed dock installations are contraindicated for one of several reasons a realistic solution is the use of floating unloaders, which can be moved from dock to dock and even port to port. This article describes a syste…read more
bulk solids handling Journal Technical Article Application Aspects of Continuous Unloaders There is currently a very rapid growth in volume of dry bulk shipments, requiring higher unloading rates, ship sizes, and different technical solutions and unloading equipment. Many consider that the upper practical limit of the size of grab unloaders has been reached Environmental constraints …read more
bulk solids handling Journal Technical Article Introducing Geostatistics to the China Clay Industry E.C.C. Ltd. extracts clay matrix from primary kaolin sources in the South West of England, the properties of which are inherently variable. Quality control procedures during the stages of processing ensure that the final products meet market requirements. Bore hole samples are used to assess the geo…read more
bulk solids handling Journal White Paper System for Coal Car Unloading at Rail to Water Terminals The past and present decades have seen a rapid growth in the export of coal to foreign countries. Normally, coal is brought to the export terminal by trains made up of either unit train cars (cars of same size and capacity) or of random cars (cars of varying sizes and capacities). If the rolling sto…read more
Case Study motan Trocknungs- und Fördertechnik bei WITTE Automotive in Ostrov - Tschechien Im 2016 eröffneten WITTE-Werk in Ostrov, Tschechien, wird insbesondere Kunststoff-Spritzguss, Lackierung und Montage betrieben. Eine wesentliche Anlagenkomponente ist die hochautomatisierte zentrale Förderanlage für Kunststoffgranulat zu den Spritzgießmaschinen. Sie wurde von der deutschen motan…read more
bulk solids handling Journal Technical Article Finite Element Structural Analysis of Movable Crusher Supports Finite element analysis is applied to two different basic structural arrangements. One configuration utilises a plate shell structure to carry the loads similar to the construction used for the marine industry. The other configuration utilises a space frame made up of columns beams and bracing simil…read more
Case Study BHS-Sonthofen optimizes crushing at Dachser Fertigbeton-Kieswerke Building materials supplier Dachser is currently expanding and optimizing its gravel plant in Türkheim by integrating a second rotor impact mill of type RPM 1113 from BHS-Sonthofen. In addition, BHS supplied the complete control system to ensure seamless coordination of the two machines. This makes…read more
bulk solids handling Journal Technical Article Dredging of Heavy Minerals After a short discussion of the mining procedure used for dredging heavy minerals the current dredging techniques are reviewed Successful tun-scale tests proved that an underwater bucket wheel can be applied for dredging purposes up to depths of 100 m and that this bucket wheel shows the same favour…read more
Case Study Impact Crusher from BHS-Sonthofen processes Turkish Perlite for the Juice Industry Harborlite Aegean in Turkey, a subsidiary of Imerys, now processes different types of perlite for the juice industry with an impact crusher of type PB 0806 from BHS-Sonthofen. This is the first time for the machine to be used for this purpose. Tests with original material in Sonthofen and previous e…read more