Application of Spiral Chute in Stone Processing
Spiral Chute Components and Benefits
FRP spiral chute consists of ore equipartition divider, feeding chute, spiral chute, product interception slot, product gathering bucket and chute stand (including cross or tripod) six parts. The spiral chute interconnected by spiral blades is the major component. Spiral blade is made of FRP (fiberglass reinforced plastic), connected together with bolts. The spiral chute separating surface has a prefabricated wear layer. It possesses advantages of light weight, stability and durability in use. The top of spiral chute is equipped with multiple tubes for ore equipartition divider to divide the ores equably, with simple and convenient control. The ore divider is freely placed on the supporting cross (or tripod).
The equational pulp goes slowly to spiral chute surface through feeding chute on the head port of the spiral chute; then the ore dressing carries on. The spiral chute tail end is installed with valve type new product interception slots, which will divide the sorted new products into three (or four) new products according to their grades and along their radial directions. Regulate the valve block position to change the interception width of various new products.
New product gathering bucket is a concentric annular cylinder; it will collect and derive the intercepted multiple lines of ore flow respectively. The cross section of spiral chute and the changes of the curve slope are particular suitable for processing the fine particles of ore. The spiral chute has the advantages of simple structure, no moving parts, light weight, no noise, convenient configuration installation and maintenance, etc.
Spiral Chute Application
When the ore pulp flows near the carved groove edge, vortex will be generated; ore bed will be thickened at the same time, which strengthens the loose stratification effect and the coarse but light minerals separated out from the middling band cross the groove to move outwards. The bottom heavy mineral flows to the inner edge along the groove guide. As a result, the middling quality ore volume decreases and the concentrate metal recovery rate is improved. The following table lists the contrast results of Gongchangling feint hematite ore’s grade sand setting industrial test (one coarse, one concentrated process) done by spiral chute with and without carved groove.
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