Knelson Centrifugal Concentrator – High Efficiency Gold Ore Dressing Equipment | Qingzhou Dayang Heavy Industry Machinery Manufacturing Co., Ltd.

Knelson Centrifugal Concentrator – High Efficiency Gold Ore Dressing Equipment

The Knelson Centrifugal Concentrator is an enhanced gravity beneficiation equipment based on centrifugal principle, with a centrifugal force 50-150 times the gravity.
It features high enrichment ratio and high recovery rate, with the recovery rate of fine gold over 90% and sand gold recovery rate up to more than 99%.
It is suitable for separation and purification of gold, tungsten, tin and other heavy minerals, and can handle sand gold, vein gold, tailings and other materials.

Product Overview

The Knelson Centrifugal Concentrator is an enhanced gravity beneficiation equipment based on the centrifugal principle. It generates a strong centrifugal force field (up to more than 60 times the gravitational acceleration) through high-speed rotation, making heavy mineral particles (such as gold, platinum, etc.) in the pulp overcome the resistance of water to settle and enrich, while light minerals are carried away by water flow, thus achieving efficient separation.

The equipment mainly has two types: intermittent ore discharge and fully automatic continuous ore discharge. Its core advantages are high enrichment ratio and high recovery rate (the sand gold recovery rate can reach more than 99%), especially good at recovering fine-grained precious metals, without the need for chemical reagents, and environmentally friendly. It is widely used in the beneficiation of gold, silver, tin, tungsten and other heavy minerals, and is one of the key equipment for modern concentrators to improve resource recovery rate.

Core Parameter Specification

Item	STL19	STL30	STL60	STL80	STL100	Model 120
Production Capacity (T/H)	0.25-0.30	4-9	15-20	50-70	80-100	100-160
Feed Particle Size (mm)	0-3	0-4	0-6	0-6	0-6	0-6
Feed Concentration (%)	0-50%	0-50%	0-50%	0-50%	0-50%	0-50%
Backwash Water Volume (T/H)	1.5-2	4-6	10-15	17-25	40-60	70-80
Concentrate Output (kg / time)	2-3	10-20	30-40	60-70	70-80	110-120
Motor Power (kw – grade)	1.5-6	1.5-6	5.5-6	11-6	18.5-6	22-6
Cone Speed (r/min)	400	400	490	490	420	360
Pressure Water (MPa)	0.04	0.11	0.12	0.25	0.35	0.4
Overall Dimension (m)	1.1/1.1/1	1.2/1.1/1	1.7/1.7/1	1.8/1.8/2	2.5/2.0/2	2.7×2×2.6
Equipment Weight (kg)	145	100	400	700	1500	2000

Product Advantages & Technical Highlights

High-efficiency Enrichment: Centrifugal force is 50-150 times the gravity, the recovery rate of fine gold is over 90%, and the enrichment ratio can reach more than 1:500.
Wear-resistant Water Jacket: Double-layer water jacket structure + wear-resistant liner, the service life of the equipment is over 8 years, greatly reducing maintenance costs.
Large Processing Capacity: The hourly processing capacity of a single unit is 5-50 tons, supporting 24-hour continuous operation and adapting to large-scale production.
Intelligent Ore Discharging: Automatically control the concentrate discharge cycle, no manual on duty required, easy to operate.
Strong Adaptability: Can handle various materials such as sand gold, vein gold and tailings, and has excellent separation effect on gold particles with a particle size of 0.01-2mm.

Applicable Scenarios & Materials

Sand Gold Mining Project: Gold enrichment and recovery in river beaches and sand gold mines, replacing traditional chutes with efficiency increased by more than 30%.
Vein Gold Concentrator: High-efficiency enrichment of gold particles after grinding, serving as the core gravity separation equipment connecting the subsequent cyanidation process.
Tailings Recovery Project: Recovery of residual gold in gold mine tailings, improving resource utilization rate and reducing environmental pressure.
Heavy Mineral Separation: Separation and purification of heavy non-ferrous metal minerals such as tungsten, tin, lead and zinc.