Zobrazeno 1 - 10
of 19
pro vyhledávání: '"N. B. Gray"'
Publikováno v:
Minerals Engineering. 22:1251-1265
A steady-state, axi-symmetric, numerical model was developed to investigate the agglomeration of molten particles of sulphide ore in the reaction shaft of a flash smelting process used for extracting copper. The turbulent, particle-laden, gas flow wa
Publikováno v:
Measurement Science and Technology. 17:340-352
An eddy current tomography system is under development to monitor the condition of metallurgical tapholes. In this paper, the results of two approaches for solving the forward eddy current problem are presented. The results of these simulations are c
Publikováno v:
Inverse Problems. 16:483-494
This is the second part of two sister papers. The first paper developed an algorithm for imaging the solidification of molten metal inside a pipe where the conductivity of the metal inside the pipe was assumed to vary continuously (i.e., no clear bou
Publikováno v:
Metallurgical and Materials Transactions B. 29:993-1006
Single-phase turbulent fluid flow inside and below a burner model was studied to better understand the fluid flow processes occurring inside and below flash smelting burners. The effect of Reynolds number and temperature on the axial velocity profile
Publikováno v:
Metallurgical and Materials Transactions B. 29:773-784
Water-model experiments were carried out on 1:14-scale models of venturi, distributor, and jet-flow burners to ascertain flow patterns at varying Reynolds numbers (60,000 to 507,000) using time-lapse streak photography and video streak photography. D
Autor:
Liow Jong-Leng, N. B. Gray
Publikováno v:
Metallurgical and Materials Transactions B. 27:633-646
A survey of previous studies of splash formation in metallurgical vessels revealed that little information is available to characterize and describe the processes involved in splash formation. An experimental study of splash formation by top submerge
Autor:
N. B. Gray, Christopher B. Solnordal
Publikováno v:
Metallurgical and Materials Transactions B. 27:221-230
The Sirosmelt submerged combustion smelting process utilizes top injection lances to deliver fuel and air into a metallurgical melt. Helical vanes are used within the annular lance to impart swirl to the flowing air and enhance heat transfer from the
Publikováno v:
Metallurgical and Materials Transactions B. 25:873-884
Experiments were carried out to remove arsenic from antimony trioxide by two techniques: first, by selectively volatilizing the more volatile arsenic trioxide from a mixed oxide sample; and, second, by selectively condensing the less volatile antimon
Autor:
N. B. Gray, C. B. Solnordal
Publikováno v:
Experiments in Fluids. :17-25
The mean and turbulent structures of turbulent swirling flow in a heated annulus have been measured. Both forced and free vortex swirling flows were generated, and the outer wall of the test section was heated uniformly. The maximum swirl number was
Autor:
N. Dave, N. B. Gray
Publikováno v:
Metallurgical Transactions B. 22:13-20
Sirosmelt-type gas injection systems for submerged combustion in metallurgical baths use tubular lances with single or multistart-type helical vane swirlers in the annular region. These inserts not only promote heat transfer from the tube wall to the