A classifier equipment with overflow end spiral completely submerged below the liquid surface.
Xinhai tailings dry stacking technology is mainly applied to the dewatering and concentrating of mineral tailings in the mineral processing plants. To reach the aim of tailings dry stacking and avoiding environmental pollution, it is the essential technology of green mine.
Phosphate Flotation Product Line is applied for complex structure phosphate with fine particle distribution, closed embeddedness relationship, difficult monomer dissociation, etc.
Barite is fragile and like a big tube. The separation methods of Xinhai are generally gravity separation, magnetic separation and flotation.
Alluvial gold processing solution mainly applies to processing alluvial gold with a large volume of gangue minerals. Alluvial gold processing is a set of mining processes, including crushing and screening, desliming stage, separating stage, etc.
Research on a method for predicting the underflow concentration of a thickener based on the hybrid model Dong Xiao Hongfei Xie Longqiang Jiang Ba Tuan Le Jichun Wang ChongMin Liu Hongzong Li Affiliations Dong Xiao Information Science and Engineering School Northeastern University
EIMCOK.C.P. High rate thickeners are designed to provide high underflow concentration with smaller diameter. The high velocity feed is split to two compartments with opposite tangential inlets that are positioned in two levels an upper and a lower one.
As the underflow solids concentration increases from high rate to paste thickener the yield stress increases. In rheology the yield stress is the minimum amount of shear stress required to initiate and sustain flow (OBrien 2015). Loweryield stress muds are produced by using highrate thickeners.
Generally thickeners concentrate sludge at lower than 15% concentration the dewatering units concentrate the sludge to higher than 15% concentration. Thickened sludge still behaves as a liquid and can be pumped. However the dewatered sludge generally behaves as
The xintercept is the maxim um underflow solids concentration possible as shown in Figure 7. The condition described by this operating line is referred to as a critically loaded thickener. At steadystate the unit will provide optimum performance under these conditions. The maximum thickened concentration in this example is 232 kg/m 3.
Xinhai adopts large angle cone design and the whole is vertical cone shape which greatly improves underflow density and overflow quality At the same time both slender pool body design and flocculating agent accelerate the concentration process reduce the floor space and improve automation degree.The processing capacity is 38 times higher than traditional thickener and the underflow concentration is as high as 5070%
thickener throughput at a given underflow solids concentration. Performance enhancement factors of up to 100 have been observed for selected materials in high rate thickeners.
The expected underflow solids concentration is probably one of the most important parameters in the design of the thickener. If this is not achieved during the actual operation of the thickener it can have a significant adverse impact on the entire tailings and water management system of the mine.