Journal
INTERNATIONAL JOURNAL OF COAL PREPARATION AND UTILIZATION
Volume -, Issue -, Pages -Publisher
TAYLOR & FRANCIS INC
DOI: 10.1080/19392699.2023.2212588
Keywords
Dense medium cyclone; suspension; dynamic stability; density difference
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This paper studies the influencing factors of the dynamic stability of 1.30-1.60 g/cm(3) dense medium suspension, and proposes a formula for calculating the density difference characteristic value of the suspension.
The dynamic stability of dense medium suspension is the premise to ensure the effective separation of mineral particles in the separation equipment. It is usually difficult to directly measure the dynamic stability of the suspension in the separation process of the dense medium cyclone. In this paper, a parameter defined as the density difference value between the underflow and overflow of cyclone is used to characterize the dynamic stability of the suspension in the separation process. Under the conditions of different operating parameters and structural parameters, the influencing factors of the dynamic stability of 1.30-1.60 g/cm(3) dense medium suspension are systematically studied. The results show that the parameter value is in the range of 0.20-0.50 g/cm(3), which is conducive to the separation of particles. When the suspension density increases, the characteristic value of density difference decreases, the influence of the suspension density, feed pressure, the diameter of underflow and overflow port diameter on the density difference characteristic are also researched. Eventually, the formula for calculating the density difference of the characteristic value of suspension is derived.
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