British Materials Handling Board

See also the British Material Handling Board s code of practice on the design of silos and bunkers, BMHB (1992). 

The effects of attrition on a given particulate material may be assessed in many different ways. One may base this assessment on the observation of an individual particle. Alternatively, the fate of a group of particles may be examined, or the effect of attrition on the bulk properties of a powder may be taken forthis assessment. The British Materials Handling Board (1987) and Bemrose and Bridgwater (1987) have given a lot of examples for the different methods. 

Detailed reviews of such test procedures are given by Bemrose and Bridgwater (1987) and the British Material Handling Board (1987). The present subsection is restricted to a short discussion of those tests that are relevant for fluidized beds or pneumatic conveying lines. 

British Materials Handling Board, Particle Attrition, Trans Tech Publications Series on Bulk Mat. Handling, p. 5 (1987)... 

Berg, C. H. O. (assigned to Union Oil Company of California) (1954). U.S. Patent 2,684,868. BMHB (British Material Handling Board) (1988). Draft Design Code of Silos, Bins, Bunkers and Hoppers. Berkshire Milton Keynes. 

Particle Attrition. State-of-the-Art Review British Materials Handling Board, Series on Bulk Materials Handling Trans. Tech. Brookfield, VT, 1987, Vol. 5. 

Wang R, Fan L, Methods for scaling up tumbling mixers. Chem Eng 1974 8(ll) 88-94. Bates L. User Guide to Segregation. London. U.K. British Materials Handling Board, 1997. Williams J. The segregation of particulate materials A review. Powder Technol 1976 15 245-51. 

Abbott, J.A. British Materials Handling Board Survey of Dust Fires and Explosions in the United Kingdom 1979-1984 Warren Spring Laboratory Hertfordshire, U.K., 1986. 

Solids Physical Property Guide, British Materials Handling Board, Ascot, 1983. 

The Guide was prepared by Dr L. Svarovsky, University of Bradford, with the help of a British Materials Handling Board Steering Committee of the following membership ... 

Particle Attrition State-of-the-Art Review British Materials Handling Board... 

British Materials Handling Board (1998) User Guide to Segregation (BMHB, Buckinghamshire, UK). 

Wilkinson, FI. N., DufferU, C. FI., Reed, A. R., and Bunting, J. 1983. Bulk Solids Physical Property Guide. Ascot, UK British Material Handling Board. 

The assessment of the material s strength is commonly based on so-called friability tests or attrition tests (cf. Sec. 4), in which a single particle or a bulk sample of the material is for a certain extent subjected to a specific stress. Data from these tests are usually presented as single numbers called friability or attrition indices. Most of these numbers are derived from a comparison of the material s content of a previously defined fraction of fines before and after the test (British Materials Handling Board, 1987 Davuluri and Knowlton, 1998). 

G.A. Lunn, Guide to Dust Explosion Prevention and Protection, Part 3 - Venting of Weak Explosions and the Effect of Vent Ducts, Institution of Chemical Engineers, British Materials Handling Board, U.K., 1990. 

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