The disadvantage is that the enrichment of the flaky ore is not as high as that of the shaker and the chute, and the parameters of the wooden body are not easily adjusted to adapt to the change of the ore-bearing property.
The spiral concentrator is suitable for the treatment of alluvial sand deposits, especially for those with high dissociation and flatness of useful mineral monomers. For the residual or sloped sand ore, the recovery rate is low. In addition, for the treatment of ore with higher mud content, the quality of the concentrate will be reduced, so it is required to remove the mud and classify and then enter the spiral concentrator and spiral chute.
Spiral concentrator and the spiral chute used for processing cassiterite, scheelite, chrome iron ore, iron ore Chin, cristobalite and monazite chromium minerals, can also be used to recover heavy mineral flotation tailings. It is generally used as a roughing equipment, and most of the tailings can be discarded to obtain a coarse concentrate.
The particle size range of the spiral concentrator is generally from 2 to 0.05 mm, and the maximum is up to 6 mm. The effective particle size is from 1 to 0.1 mm.
A spiral chute of the same type as a spiral concentrator is suitable for processing fine materials and is successfully used to treat extreme lean iron ore. Tests have shown that the effective recovery particle size of the spiral chute is limited to 20 microns.
Well blocks, also called pocket blocks, are the masonry of Refractory Bricks at the bottom of steel ladle, which is used to fix nozzle bricks. Well bricks are square shape, so is also called square bricks. Their main function of well blocks is to fix nozzle, makes the detachment and installment of nozzle bricks easier. During steel casting, well blocks are used to hold the bottom end of stopper. when casting is finished, well blocks will ensure stopper slide to nozzle along the cambered surface to stop steel liquid main stream. By material composition, well blocks can be divided into clay pocket block, high alumina pocket block and unburned high alumina pocket block.
In modern metallurgical process, air blowing smelting technique is adopted, steel ladle Purging Plug pocket blocks are an important functional component for this step, steel ladle purging plug pocket blocks should have the following characteristics:
Refinery steel ladle requires very strict standards on smelting temperature and time, the max. temperature can reach to more than 1750℃. During refinery process, molten slag alkalinity has great influence on refractory materials` service life. Steel ladle refinery slag`s alkalinity varies between 0.6~0.4, so refractory material will suffer the erosion of acid slag and basic slag which have high permeability at high temperature, and has a quick damage speed.
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