Knelson Gravity Concentrator for Gold Separation

Product Overview

Description

 

Knelson concentrator is a type of gravity concentration equipment, mainly used in the gold mining industry. It is used for the recovery of fine particles of free gold.

 

Working Principle:

The machine uses the principles of a centrifuge to enhance the gravitational force experienced by feed particles to effect separation based on ore density. The key components of the unit are a cone shaped concentrating bowl, rotated at high speed driven by an electric motor and a pressurized water jacket encompassing the bowl. Feed material is fed as a slurry toward the centre of the bowl from above. The feed slurry contacts the bottom plate of the vessel, and due to its rotation, is thrust outward. The outer extremities of the concentrate bowl house a series of ribs and between each pair of ribs is a groove. During operation the lighter material flows upward over the grooves and heavy mineral particles become trapped within them. Pressurized water is injected through a series of tangential water inlets along the perimeter of each groove to maintain a fluidized bed of particles in which heavy mineral particles can be efficiently concentrated.

 

Benefits of Knelson Concentrator:

• Automatic operation and automatic discharging
• High concentrating ratio and high recovery
• Reliable recovery performance
• Center discharge design for fast,secure concentrate removal
• Environmentally friendly (requires no chemical additives or reagents)
• Low water and electricity consumption
• Low production costs, durable wear parts, minimal maintenance requirements
• Compact design, requiring less space, easy to fit in existing process.

Technical Data:

Model	STLB20	STLB30	STLB60	STLB80	STLB100
Capacity(t/h)	0-0.6	2-3	8-12	35-45	70-80
Fluidization water (m3/h)	2.0-3.0	3-5	7-10	30-36	55-80
Slurry Water (m3/h)	1.5-4.0	5-7	8-12	35-50	70-120
Feeding Density(%)	0-50	0-50	0-50	0-50	0-50
Feeding size(mm)	0-3.0	0-3	0-5	0-5	0-5
Cleaning-up Cycle	Vein gold 1-3 Hours / Placer gold 2-6 Hours
Concentrate weight(kg)	2	3-5	10-20	40-50	70-80
Power(Kw)	0.75	1.5	4	11	18.5
weight(T)	0.145	0.4	1.0	1.5	2
Dimensions (mm)	790*785 *790	1180*1140 *1250	1970*1670 *1750	2300*1800 *2200	2400*2000 *2300