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 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 Case Study Sand from the Rocks – New Type of Crushed Sand to replace Natural Sand in Concrete Production The availability of natural sand for concrete production is facing challenges, while the so-called waste stockpiles at aggregate crushing areas are causing problems for producers. This means that the industry has a huge need to solve this challenge by finding suitable technology for usable crushed s…read more
bulk solids handling Journal White Paper A New Dust-Free Spout for Barge Loading After a thorough discussion of the causes for dust emission and ways and means to reduce dust emission during he loading of barges, details on a new speed regulating device incorporated in the loading spout are given. In practical operations this new loading device showed excellent results. read more
bulk solids handling Journal White Paper Hybrid Air Compression: Blower-Compressor Combination does the Trick Until recently, the oil-free compression of air to pressures of 1.0 to 1.5 bar was somewhat challenging. Rotary lobe blowers for this pressure range proved to be unreliable and using screw compressors was often too costly. A new hybrid air compressions system introduced by Aerzener combines the adva…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 White Paper Selection of Solids Handling Equipment An introduction to solids handling and storage equipment selection is given and the general and basic practical considerations which are involved are highlighted with particular reference to plastic raw materials. 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 White Paper Everything under Control – A Web Enabled Asset Management Approach in the Primaries Industry A new business process integration concept with web enabled asset management offers on line and offline tools for information management throughout the whole lifecycle of a plant, gathering and integrating information from the plant into business processes. read more
Case Study Benninghoven implements first virtually carbon-neutral Asphalt Production in Germany At the request of the operating company, an asphalt mixing plant in Aichach, Bavaria was to be powered exclusively by renewable energy and to be largely carbon-neutral. Asphalt mixing plant manufacturer Benninghoven was called in to implement the plan for green asphalt. Asphalt production now uses w…read more
bulk solids handling Journal Research Paper Stochastic Models for Gravity Flow: Numerical Considerations aterial flow analysis is commonly required in mining methods were the rock has to move from its initial position to the extraction point, commonly known as gravity flow. This happens in mining methods such as sublevel caving, panel caving, block caving. During this process the ore is diluted with wa…read more
Case Study Circular Economy: Norway’s largest Metal Recycler selects STEINERT Sorting Systems The Norwegian company Metallco AS collects and sorts all types of scrap metal and turns the collected raw materials into new aluminium in its in-house smelting plant. As a part of this process, the company uses STEINERT sorting technology in the sorting facility that was opened in 2022. With t…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 White Paper Unlimited Flow of Data: Merging an I&C Planning Tool with a Process Control System Creating the control software at the touch of a button after engineering – and now the engineering specialists of cement manufacturer Holcim have turned this dream of all process control technicians and process engineers into reality. The pilot project has been completed: now the department is wor…read more
bulk solids handling Journal Technical Article A Computer Simulation Model for a Surface Coal Mine This paper describes the application of the open pit materials handling simulator (OPMHS) to a surface coal mine in Illinois. The mining method practiced is classified under the general heading Area Mining. The overburden is removed by a bucket wheel excavator (BWE) and a stripping shovel operating …read more
bulk solids handling Journal Technical Article Alternative Carrying Media and Agglomeration Processes for Transportation of Coal Such terms as Colloil, COM (Coal in Oil Mixtures) and Methacoal have become a common feature in the literature. More recent deliberations, examinations, and publications also in respect of contemporary projects have been tending towards alternative carrying media such as oil and methanol to an ever …read more
bulk solids handling Journal Case Study World’s largest Wood Pellet Store – 100% Reclaim from the actually largest fully automated Wood Pellet Store In the UK as well as in the rest of Europe biomass fuel is finding ever more attention. To enable the utilisation of such materials in power plants on a big scale they have to be supplied in consistent quality with regard to chemical and physical composition. This can be achieved by transforming the…read more
bulk solids handling Journal Technical Article Evaluation of Basic Slurry Properties as Design Criteria for the Marconaflo System In developing a means of slurry handling iron ore pellet feed to and from ocean vessels, Marconaflo found it necessary to establish a slurry laboratory to develop the technology and hardware. This paper is a review of the principles involved in such developments and the importance of testing the pri…read more
bulk solids handling Journal Research Paper Experimental Investigation of Some Important Soy Shreds Characteristics The world-wide increase in the production and trade in bulk solids has led to the construction of increasingly large silos for the storage of an increasing number of bulk solids, of which the characteristics are sometimes not well known. Therefore, it is not surprising that some …read more
bulk solids handling Journal Case Study Keep it all Clean: Efficient and Water-saving Washing of Crushed Material Prior to the introduction of a new washing plant it was the sand washing process which was the biggest area of concern for Natal Portland Cement. Due to inefficiencies of the old plant, the company had to buy up to 80 per cent of the fine sand used for downstream production. This lead to significant…read more
bulk solids handling Journal Research Paper The "Bins & Bunkers Research Group" at the Technical University Clausthal The Bins and Bunkers Research Group at the Department of Mining at the Technical University Clausthal, Federal Republic of Germany, was established in 1955. Since that time its main activities have covered and have been mainly centred around the following six aspects of bulk solids handling: read more
bulk solids handling Journal Technical Article Silo Problems This article tries to prove that silo design is the most difficult of all subjects in the field of civil engineering. The major errors in silo design are discussed and examples are given of silo deformations, fractures and collapses. This article is dedicated to Dr. Otto F. Theimer in recogniti…read more
bulk solids handling Journal Case Study Fast and Dust-free Delivery: Dust Control at Buxton Cement’s Rail Depots To reduce the environmental impact of its cement transport operations, Buxton Cement has transferred regular load from road to rail. Dust abatement systems installed at silos and road tanker loading facilities keep environment pollution to a minimum. read more
bulk solids handling Journal Technical Article Steel Pipe for Slurry Pipelines In every instance, steel pipe fulfills the requirements demanded of slurry pipelines. They have the strength to absorb stresses, the essential deformability for their manufacture, pipe-laying, and operation, and the toughness required from the point of view of fracture mechanics. They allow the cons…read more