audit industrial thickeners with new on-line instrumentation in many plants thickeners operate with poor operational conditions; high use of flocculants, overflows high in fines and underflow densities that are lower than optimal. the interest was in the inventory of the solid in the thickener. laboratory measurements of these
thickeners are sized according to the volume of feed slurry to be processed. typical size ranges are from 13 to 40m in diameter and 3-4m high. the floor of the thickener is conical, sloping gently down toward the centre. the feed is pumped into the feedwell, at the centre of the thickener, near the top.
these styles of trials are driven by thickener vendors to adopt high rate, high compression or paste thickening technology. design testing a pilot thickener operating for a prolonged duration to determine design parameters such as flocculation optimisation, dilution requirements, feedwell design etc. these thickening trials are sometimes operated in association with other processing plant design tests e.g. cycloning and separation of tailings feeds into two streams, screening and
the purpose of this research is to design gravity thickener as appropriate equipment in conversion process of palm oil mill effluent pome to biogas at pilot scale in order to obtain high
using thickeners is capable of processing high volumes of slurry at a relatively low cost. during operation the two outputs, overfl ow and underfl ow, are rarely prioritized simultaneously. the duty of the thickener will determine which of the two is prioritized. in tailings applications where recovery of water and
laboratory settling tests on the feed to the decantation thickeners have shown that sulphateswhether added in solid form, as, for example, nh4 2so4, or present in the barren solution, as caso4increase the free settling rate about 25 per cent over that obtained with water made alkaline with lime.
production of lithium and sodium lubricating greases amthal zaidan algailani master student in chemical engineering department/university of leeds/uk 2015/16 b.sc. of chemical engineering from university of baghdad/iraq 2012 ml14aza leeds.ac.uk
uses in grease manufacturing are thickener and additives kholijah, et al. 2012 . thickener is a salt of long chained fatty acid, such as sodium stearate, that produced through saponification reaction of metallic base like sodium hydroxide with long chained fatty acid like stearic
these styles of trials are driven by thickener vendors to adopt high rate, high compression or paste thickening technology. design testing a pilot thickener operating for a prolonged duration to determine design parameters such as flocculation optimisation, dilution requirements, feedwell design etc. these thickening trials are sometimes
pulp, paste and putty: thickeners and flocculants for high density underflows part one. by peter bartsch mausimm cp , principal metallurgist, nyrstar nv and richard williams mausimm, regional manager, mclanahan corp type of thickener and resulting underflow solids production is summarised schematically in figure 1. the design and
one new high capacity thickener has been installed as a final 5th washer . the feedwells of industrial thickeners is of critical importance to the performance of the field and laboratory measurements were supported by a large number of.
the settling rate of any pulp is easily determined by simple laboratory tests such as outlined below: laboratory test method: place a measured quantity of pulp at a known density in a beaker or glass cylinder. fix a narrow strip of paper on one side of the container. mix pulp thoroughly.
evaluation of laboratory scale of tailings thickening test thickening is the primary method for producing high production volumes, implications on production and overall effectiveness