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Journal of the research association of powder technology—Japan
POWDEFZ
183
TECHSOLOGY
Japanese Papers on Powder Technology
Journal of the Research Association Technology--Japan
of Powder
Vol. 1, No. 1 (1964) Equipmentformeasuringthesurfaceareaofpowders by gas chromatography M. Arakawa Simultaneous crushing and chemical reaction in a tube mill M. Sugimoto and T. Tanaka The effect of changing conditions on crushing in a vibratory ball mii1 K. Ueda, H. Yamamoto and Y. Kuwahara Experiments on a small centrifugal classifier K. Iinoya and Z. Tanaka The analysis of stresses in a powder. I K. Tsuzuki and N. Yoshioka The flow rate of solid particles in an ejector Y. Mori and G. Jimbo The abrasion of metal in a ball mill G. Jimbo Vol. 1,No.2 Experimental studies on a sedimentation balance M. Arakawa and T. Kobayashi Numerical solution of the equations for the motion of a particle A. Suganuma The analysis of stresses in a powder_ II K. Tsuzuki and N. Yoshioka Phenomenological theory of the angle of friction of a powder T_ Otsubo Measurements of the flow of grain kernels in a sloping conduit S. Ishibashi, S. Yoshizaki and W. Izumi Experiments on a powder pump for pneumatic conveying T. Jotaki and S. Yoshizaki Clas&ication using a cyclone and louver K. Iinoya, N. Kimura and Z. Tanaka Studies on the classification of pulp by a Micronseparator H. Suzuki, S. Ikeda and Y. Takahashi Voi 2, No. I (1965) An experimental study on sieve analysis S. Miwa and T. Kawamura
The effect of particle properties on the angle of repose of a powder T_ Otsubo The measurement of the drained angle of a powder F_ Sato Pressure measurements in a powder inside a hopper R. Aoki and H_ Tsunakawa Pressure drops of two types of dust collectors K. Fujii and K. Iinoya Vol. 2. IVO. 2 An icdex of grindabiIity for particulate materials S. Miwa On the movement of rods in a rod mill D. Hayashi, R. Yamashida and N. Arakawa Size distributions and particle shapes of milling products using balls as grinding media I(_ Ueda S. Yamauchi, I-l. Yamamoto and Y. Kuwahara On the characteristics of continuous grinding in a vibratory ball mill G. Jimbo, A_ Suzuki and Y. Mori The permeability and characteristics of packings K. Shimizu and K. Yashiro Experimental studies on mining torque of cohesive powder R. Aoki and K. Santo Vol. 2, No. 3 On the measurement of the ansle of rcoose I. Isomura and H_ Igarashi The rheological properties of concem~z*~: suspensions T_ Otsubo The adhesive strength of packed fine particles K. Shinohara. H. Kobayashi, K_ Goto and T_ Tanaka On the behavior of a ball in a higb-swing ball mill D. Hayashi, H_ Fukuda and E. Hayashi
Voi 3_ No_ 1 (1966, A method of separating dust particles and droplets from an air stream N_ Morishiia, T_ Obiki and K_ Ozawa On the electrostatic classifier Y_ Sawahata
i’o~der
Technol, 1 (1967)
IS-IS?
lS4
POWDER-iEcHh’oLoGY
Vol. 3. 1Vo. -7 Measurement of the particle size distribution and surface area of glass spheres A. Kozima and I. Sano On the matrix representation of the closed-circuit grimiing system and its applied examples E. Onuma The rate agglomeration of powder round a wetted porous sphere H_ Tohata, I. Sekiguchi and J. Abe On the pugging of filter bags T. Hisatsune, K. Yamanaka and I. Muchi
Vol. 3. No. 3 Physical significance of the mean diameters for particulate materials S. Miwa Studies on cyclone collection of diatomaceous Iilteraids K. Jojima and Y_ Nagai On the _mnulation of calcium sulphate anhydride during hydration H. Tohata, I. Sekiguchi, J-Abe and S. Matsuzawa Ponder
7-echoL
l(l967)
IS-IS4
Book Reviews
The Storage and Recovery of Particulate Solids. Edited by J_ C RICHARDS.Institution of Chemical Engineers, London, 1966. 182 pp_ Price f2.2.0. The field of storage and recovery of particulate solids is a wide one and the information which exists is fra_mented and spread throughout a whole range of publications. In 1963 the Institution of Chemical Engineers set up a Working. Party to consider the subject. Recently the Inst%ution has published the Working Party’s report. The report summarises the available knowledge, so that information on a particular aspect of solids handling is easily found. In most cases the information is not complete. but as research has not been carried out to fill the gaps, this is in no way a criticism of the report. The first chapter gives a general account of the state of the art of solids handling ; the second chapter is devoted to defining terms, and the remaining chapters discuss particu!ar aspects of solids handling. To facilitate the use of these sections for reference purposes a similar approach in each has been adopted as far as possible. This consists of discussing the nature of the problem, giving a brief account of the published work or. in the case of equipment, development of types; a list of work in progress; comments on the adequacy of existing knowledge, and an outline of problems which might form suitable subjects for research or development_ The main topic of the book, the storage and
recovery of particulate solids, has been divided into five parts; feed and control of bulk solids, descriptions of powders, effect of external conditions on bulk solids, bulk solids in motion. and bunker design For feeders a brief description of each type is given, along with performance limitations. Some information on the instrumentation of feeders is also given. The author particularly emphasizes the difficulties encountered in obtaining performance figures on a wide range of machines without trial on a large scale, and, in view of the cost of the equipment and the need for large-scale material movement for testing, he feels that it is unlikely that research departments will find it feasible to do such work. A general description of methods of measurement of particle size and shape. surface properties, packing densities, and flow properties is given. The author of this section states that little progress has been made in deriving quantitative descriptions of the features of surfaces, particularly of the smallest particles, and relating them to the bulk properties_ Consequently, the designer of storage and recovery systems has still to rely on quantitative assessments and empirical determinations of the behaviour of any particular bulk solid. The effects which can occur when a solid is stored in bulk are then discussed ; they include agglomeration, particle crushing, changes in moisture content, change of flow properties, chemical changes and Powder TerhnoL l(1967)
184-185
183
TECHSOLOGY
Japanese Papers on Powder Technology
Journal of the Research Association Technology--Japan
of Powder
Vol. 1, No. 1 (1964) Equipmentformeasuringthesurfaceareaofpowders by gas chromatography M. Arakawa Simultaneous crushing and chemical reaction in a tube mill M. Sugimoto and T. Tanaka The effect of changing conditions on crushing in a vibratory ball mii1 K. Ueda, H. Yamamoto and Y. Kuwahara Experiments on a small centrifugal classifier K. Iinoya and Z. Tanaka The analysis of stresses in a powder. I K. Tsuzuki and N. Yoshioka The flow rate of solid particles in an ejector Y. Mori and G. Jimbo The abrasion of metal in a ball mill G. Jimbo Vol. 1,No.2 Experimental studies on a sedimentation balance M. Arakawa and T. Kobayashi Numerical solution of the equations for the motion of a particle A. Suganuma The analysis of stresses in a powder_ II K. Tsuzuki and N. Yoshioka Phenomenological theory of the angle of friction of a powder T_ Otsubo Measurements of the flow of grain kernels in a sloping conduit S. Ishibashi, S. Yoshizaki and W. Izumi Experiments on a powder pump for pneumatic conveying T. Jotaki and S. Yoshizaki Clas&ication using a cyclone and louver K. Iinoya, N. Kimura and Z. Tanaka Studies on the classification of pulp by a Micronseparator H. Suzuki, S. Ikeda and Y. Takahashi Voi 2, No. I (1965) An experimental study on sieve analysis S. Miwa and T. Kawamura
The effect of particle properties on the angle of repose of a powder T_ Otsubo The measurement of the drained angle of a powder F_ Sato Pressure measurements in a powder inside a hopper R. Aoki and H_ Tsunakawa Pressure drops of two types of dust collectors K. Fujii and K. Iinoya Vol. 2. IVO. 2 An icdex of grindabiIity for particulate materials S. Miwa On the movement of rods in a rod mill D. Hayashi, R. Yamashida and N. Arakawa Size distributions and particle shapes of milling products using balls as grinding media I(_ Ueda S. Yamauchi, I-l. Yamamoto and Y. Kuwahara On the characteristics of continuous grinding in a vibratory ball mill G. Jimbo, A_ Suzuki and Y. Mori The permeability and characteristics of packings K. Shimizu and K. Yashiro Experimental studies on mining torque of cohesive powder R. Aoki and K. Santo Vol. 2, No. 3 On the measurement of the ansle of rcoose I. Isomura and H_ Igarashi The rheological properties of concem~z*~: suspensions T_ Otsubo The adhesive strength of packed fine particles K. Shinohara. H. Kobayashi, K_ Goto and T_ Tanaka On the behavior of a ball in a higb-swing ball mill D. Hayashi, H_ Fukuda and E. Hayashi
Voi 3_ No_ 1 (1966, A method of separating dust particles and droplets from an air stream N_ Morishiia, T_ Obiki and K_ Ozawa On the electrostatic classifier Y_ Sawahata
i’o~der
Technol, 1 (1967)
IS-IS?
lS4
POWDER-iEcHh’oLoGY
Vol. 3. 1Vo. -7 Measurement of the particle size distribution and surface area of glass spheres A. Kozima and I. Sano On the matrix representation of the closed-circuit grimiing system and its applied examples E. Onuma The rate agglomeration of powder round a wetted porous sphere H_ Tohata, I. Sekiguchi and J. Abe On the pugging of filter bags T. Hisatsune, K. Yamanaka and I. Muchi
Vol. 3. No. 3 Physical significance of the mean diameters for particulate materials S. Miwa Studies on cyclone collection of diatomaceous Iilteraids K. Jojima and Y_ Nagai On the _mnulation of calcium sulphate anhydride during hydration H. Tohata, I. Sekiguchi, J-Abe and S. Matsuzawa Ponder
7-echoL
l(l967)
IS-IS4
Book Reviews
The Storage and Recovery of Particulate Solids. Edited by J_ C RICHARDS.Institution of Chemical Engineers, London, 1966. 182 pp_ Price f2.2.0. The field of storage and recovery of particulate solids is a wide one and the information which exists is fra_mented and spread throughout a whole range of publications. In 1963 the Institution of Chemical Engineers set up a Working. Party to consider the subject. Recently the Inst%ution has published the Working Party’s report. The report summarises the available knowledge, so that information on a particular aspect of solids handling is easily found. In most cases the information is not complete. but as research has not been carried out to fill the gaps, this is in no way a criticism of the report. The first chapter gives a general account of the state of the art of solids handling ; the second chapter is devoted to defining terms, and the remaining chapters discuss particu!ar aspects of solids handling. To facilitate the use of these sections for reference purposes a similar approach in each has been adopted as far as possible. This consists of discussing the nature of the problem, giving a brief account of the published work or. in the case of equipment, development of types; a list of work in progress; comments on the adequacy of existing knowledge, and an outline of problems which might form suitable subjects for research or development_ The main topic of the book, the storage and
recovery of particulate solids, has been divided into five parts; feed and control of bulk solids, descriptions of powders, effect of external conditions on bulk solids, bulk solids in motion. and bunker design For feeders a brief description of each type is given, along with performance limitations. Some information on the instrumentation of feeders is also given. The author particularly emphasizes the difficulties encountered in obtaining performance figures on a wide range of machines without trial on a large scale, and, in view of the cost of the equipment and the need for large-scale material movement for testing, he feels that it is unlikely that research departments will find it feasible to do such work. A general description of methods of measurement of particle size and shape. surface properties, packing densities, and flow properties is given. The author of this section states that little progress has been made in deriving quantitative descriptions of the features of surfaces, particularly of the smallest particles, and relating them to the bulk properties_ Consequently, the designer of storage and recovery systems has still to rely on quantitative assessments and empirical determinations of the behaviour of any particular bulk solid. The effects which can occur when a solid is stored in bulk are then discussed ; they include agglomeration, particle crushing, changes in moisture content, change of flow properties, chemical changes and Powder TerhnoL l(1967)
184-185