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Ava Group and Mining3 sign Contract for Development and Deployment of new Conveyor Monitoring System

Hydraulic/Slurry Conveying

Article Teaser - HammerTek Incinerator teaser

North Incinerator Finds Solution to Excessive Sweep Elbow Wear

At Montgomery County’s North Incinerator plant, there was a problem several years ago. The Dayton, OH, area trash-to-energy plant was experiencing repeated shutdowns due to sweep elbow failure in its dense phase pneumatic conveying system, a component of the lime injection system in operation ther…read more

Article Teaser - wp 1335

North Incinerator Finds Solution to Excessive Sweep Elbow Wear

At Montgomery County's North Incinerator plant, there was a problem several years ago. The Dayton, OH, area trash-to-energy plant was experiencing repeated shutdowns due to sweep elbow failure in its dense phase pneumatic conveying system, a component of the lime injection system in operation there.…read more

Article Teaser - HammerTek Video Teaser

Smart Elbow® Deflection Elbow Installation Brought in $30,000 Under Projected Budget

At Miller Brewing Company's Fort Worth, TX, facility, staff engineer Roy Marin was faced with an interesting problem two years ago — a problem that was solved by using the patented HammerTek Smart Elbow® deflection elbow. The Smart Elbow flow device provides change of direction in pneumatic and s…read more

bulk solids handling Journal

Article Teaser - BSH 2011 03 007 teaser

Slurry, Paste and Cake: Transport by hydraulic driven Piston Pumps

The traditional way to transport liquids and semi liquid material generally uses a lot of water. But nowadays, where water has become a limited resource, this is no longer acceptable. However, the amount of water needed can be easily reduced – by selecting the right kind of pumping system. read more

bulk solids handling Journal

Article Teaser - bsh archiv teaser

Pneumatic and Hydromechanical Techniques in the Gold and Coal Mining Industries in South Africa

Based on various task definitions from gold and coal mines in South Africa, it is explained to what extent existing techniques can be applied to the solution of these problems. The investigation shows that experience already gained in pneumatic transport of building materials in West European coal m…read more

bulk solids handling Journal

Article Teaser - bsh archiv teaser

Piston Pumps for the Hydraulic Transport of Solids

The author describes the various types of pumps at present available for the conveying of slurries. The advantages dis advantages and field of application of each pump type are discussed and examples of their use detailed. read more

bulk solids handling Journal

Article Teaser - bsh archiv teaser

Technical Article

The Use of Computers for Heterogeneous Slurry Pumping Analysis

The pipeline transportation of solids by heterogeneous sus pension in a carrying fluid is a complex phenomenon. The well researched documented and reliable hydraulic theory applicable to the flow of a truly homogeneous fluid with measurable properties such as water is not applicable to slurry flow a…read more

bulk solids handling Journal

Article Teaser - bsh archiv teaser

The Current Status of Hydraulic Backfill Techniques in South Africa

The gold mining operation in South Africa produces a mix ture of gold-bearing ore and broken waste rock which, after a primary separation of the barren waste is hauled to the surface. The end products of the mining operation are gold and two types of waste material, a broken rock and a silt sized ro…read more

bulk solids handling Journal

Article Teaser - bsh archiv teaser

ETSI Coal Evaluation Plant

The objectives and testwork results of ETSl's Coal Evaluation Plant are summarized and a description of the principal components for preparation, dewatering handling and storing as well as water treatment are given. read more

bulk solids handling Journal

Article Teaser - bsh archiv teaser

Technical Article

Pipe Behaviour in Bottom Ash Slurry Systems

This study presents the results of an 18-year long investigation of pipe deterioration in cyclone stag slurry transport. The goal was to study pipe behaviour in this extremely abrasive service and select an optimum piping material. Comparisons are given for high quality alloy cast steel pipes and pi…read more

bulk solids handling Journal

Article Teaser - bsh archiv teaser

Technical Article

Technical Aspects of Shiploading Coal Slurries

The loading of coal slurries direct into ships has many important economical advantages but the technical problems involved have not all satisfactorily been solved The present article reviews the advantages and technical difficulties involved with this procedure and comes to the conclusion that the …read more

bulk solids handling Journal

Article Teaser - bsh archiv teaser

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

Article Teaser - bsh archiv teaser

Particle Degradation of ROM Coal and Washery Tailings up to 63 mm Size with Horizontal Hydrotransport

In the hydrotransport of materials with a wide range of particle sizes the degradation of the feed during transport is of paramount importance. The test rig at Bergbau-Forschung has been used to investigate a wide range of material and equipment parameters in their effect on the production of fines.…read more

bulk solids handling Journal

Article Teaser - bsh archiv teaser

Technical Article

Assessment of Methanol as a Carrier Liquid for Coal Transport Through Pipelines

The use of pipelines for the transportation of coal in slurry form has great advantages over more conventional means of transport. At present water is usually used as a carrying medium but this has some disadvantages. The author reviews the possible use of methanol as an alternative and discusses at…read more

bulk solids handling Journal

Article Teaser - bsh archiv teaser

Consideration of the Effect of a Wide Particle Size Distribution on Calculations for Hydraulic Conveying

The use of empirical and semi-empirical equations for the analysis of flow behaviour in the hydraulic transport of solids is long established. These equations however, do not apply in the case of wide particle size distributions. The author extends the use of one such equation from Durand to this ca…read more

bulk solids handling Journal

Article Teaser - bsh archiv teaser

Blockage of a Slurry Pipeline

The Ministry of Construction plans to dredge the Tsurumi River and to transport the dredged material by a slurry pipeline. As this pipeline is planned to cross the mouth of the river and the channel, the possible block age in this submarine pipeline should be investigated before construction. I…read more

bulk solids handling Journal

Article Teaser - bsh archiv teaser

High-Pressure Coal Feeding Techniques Using Bin-Type Feeders

Starting from a brief introduction of the high-pressure bin-type coal feeding technique, a hydrohoisting system successfully developed in China and applicable to deep shafts and to mines intending to keep a low percentage of degradation of lump coal product or to mines producing ROM with a high pyri…read more

bulk solids handling Journal

Article Teaser - bsh archiv teaser

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

bulk solids handling Journal

Article Teaser - bsh archiv teaser

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

Article Teaser - bsh archiv teaser

Technical Article

Hydrotransport in Coal Mines

The utilization of water as a transporting medium for coal belongs to a section of technology which is still unfamiliar to large sections of the mining industry. As a function of direction of the hydraulic flow to gravity hydrotransport can be classified into three groups. read more

bulk solids handling Journal

Article Teaser - bsh archiv teaser

Process Controls for Hydraulic and Pneumatic Pipeline Conveying Systems

Due to the high investment costs involved in the installation of hydraulic and pneumatic conveying systems associated control systems should have a high degree of availability. High grade open and closed-loop control and monitoring systems are a decisive prerequisite for this. This paper deals speci…read more

bulk solids handling Journal

Article Teaser - bsh archiv teaser

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

Article Teaser - bsh archiv teaser

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

Article Teaser - bsh archiv teaser

Technical Article

Analysis of Slip of a Particulate Mass in a Horizontal Pipe

The pressure differential required to set a plug of particles in motion along a horizontal pipe may vary with plug length in more than one fashion. A linear variation, which agrees with some theoretical predictions, implies that dense-phase conveying is technically feasible. However, a progressively…read more

bulk solids handling Journal

Article Teaser - bsh archiv teaser

Technical Article

Mechanical Dewatering of Fine Coal and Refuse Slurries

Alternative solid/liquid separation techniques offer a wide range of equipment for the dewatering of fine coal slurries. The importance of selecting the most effective combination of dewatering methods is underlined by the increasing costs of thermal energy required by conventional drying operations…read more

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