Pneumatically conveyed powders

Powdered-product collection, as in pneumatic conveying the spray drying of milk, eggs, and soap and the manufacture of nigh-purity zinc oxide and carbon black... [Pg.1580]

Inerting is rarely used for powder storage, although its use is increasing for pneumatic conveying, especially for ignition sensitive dusts. [Pg.194]

Pneumatic conveying The conveying of dusts, powders, or granular materials in ducts or pipes by means of a difference in air pressure. [Pg.1467]

Konrad, K. Powder Technol. 49 (1986) I. Dense-phase pneumatic conveying a review. [Pg.229]

Wypych. P. W. and Arnold, P. C. Powder Technol. 50 (1987) 281. On improving scale-up procedures for pneumatic conveying design,... [Pg.229]

Rotary valves have been specified for the receivers of the vacuum pneumatic conveying systems (RV-601 and RV-602) and for the feeders (RV-40 1) and receivers (RV-501) of the positive-pressure system transferring powder from the dryers to the extruders. Perry72 gives some recommended sizes for rotary valves. The power required by all these valves will probably not exceed 2 kw and will be ignored. [Pg.227]

Yang, W. C., Criteria for Choking in Vertical Pneumatic Conveying Lines, Powder Tech., 35 143 (1983)... [Pg.329]

Fluidized Bed Tests. These tests have direct relevance to all applications where particles are subjected to conditions of fluidization. Some authors believe that these tests can also to some extent simulate the stress of pneumatic transport. Coppingeretal. (1992) found at least a good correlation with the attrition resistance in dense-phase pneumatic conveying when they tested various powders in a slugging fluidized bed. [Pg.449]

Salman, A. S., Verba, A., and Mills, D., Particle Degradation in Dilute Phase Pneumatic Conveying Systems, Proc. of the 1992 Powder Bulk Solids Conf. and Exhibition, Rosemont, USA (1992)... [Pg.489]

Knowlton, T., The Effect of the System Pressure/Pipe-Diameter/Mass Flux Interaction on Pressure Drop in Dilute Phase Pneumatic Conveying, Proc. of Pneumatic Conveying Workshop, Powder Technol. Forum, AIChE, Denver (1994)... [Pg.710]

Konrad, K., Dense Phase Pneumatic Conveying A Review, Powder Tech., 49 1 (1986)... [Pg.710]

Paul, K. D., Dense Phase Pneumatic Conveying Improving Efficiency, Powder and Bulk Engr., p. 41 (1991)... [Pg.711]

Sinclair, J., Proc. of Pneumatic Conveying Workshop, Powder Technology Forum,... [Pg.711]

However, this section pursues particle size measurement and evaluates its importance (as well as density) for the purpose of classifying the suitability of powders for long-distance pneumatic conveying applications. Initially, an appreciation of the fundamentals and the existing powder classification techniques is required. [Pg.715]

Application to Long-Distance Pneumatic Conveying. From the above three classifications, there is sufficient evidence to suggest that powder classification (i.e., to select ultimately the most suitable mode of conveying for a given product and its behavioral properties) depends on the following properties ... [Pg.729]

Miletich, D., A tomisation and Pneumatic Conveying ofCoarse Aluminium Powder, BE Thesis, Dept of Mech Eng, Univ. of Wollongong (1994)... [Pg.770]

Pan, R., and Wypych, P. W., Scale-Up Procedures for Pneumatic Conveying Design, Powder Handling Processing, 4(2) 167—172 (1992a)... [Pg.770]

Wypych, P. W., and Hauser, G., Design Considerations for Low-Velocity Conveying Systems Pipelines, Pneumatech 4, Int. Conf. on Pneumatic Conveying Technology, pp. 241-260, Glasgow, Scotland, Powder Advisory Centre, UK (1990)... [Pg.772]

Zenz, F. A., Pneumatic Conveying from Grains to Powders, Pneumatech 2, Univ. of Kent, Canterbury, England, Organised by the Powder Advisory Centre, London (1984)... [Pg.772]

Advances in quality control requirements for rubber compounds have demanded that special care is exercised in the weighing of the various fillers and critical small volume powders necessary for the formulation. Ingredient weighing systems are available which can be tailored to the specific requirements of individual factories. Additional components can include conveyors, bagging units and pneumatic conveyance systems. [Pg.205]

Estimate the charge buildup and accumulated energy as a result of pneumatically conveying a dry powder through a Teflon duct. The powder is collected in an insulated vessel. [Pg.349]

They are, however, of only limited suitability for coloring plastics in powder form. Their distribution in the plastic is often inadequate and the risk of demixing exists particularly with pneumatic conveying. [Pg.163]

The NORIT Porta-Powdered Activated Carbon (Porta-PAC) dry injection system pneumatically conveys an adjustable amount of powdered activated carbon (PAC) from bulk bags into the flue gas streams of incinerators for mercury and dioxin emission reductions. PAC is metered using a volumetric feeder into a pneumatic eductor where moving air transfers the carbon to the injection point. A series of interlocks control the operation of the unit and allow local or remote operation and monitoring of the unit. This technology is commercially available. All information is from the vendor and has not been independently verified. [Pg.822]

Control fluidization of powder. Beware of processes, such as pneumatic conveying, that increase the potential for the material to become aerated. [Pg.196]

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