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carbon regeneration kilns in gold mining

carbon regeneration kiln

carbon regeneration kiln

OurCustom Rotary Kilns are based around process first and foremost. Designed to ensure correct residence time at hold temperature of 20 minutes -not 10 minutes, they ensure stable progressive feed of your carbon with reliable three zone heating with independent controls, robust thermal lifter designs, co-current movement of reaction products and correct thermal conduction area and bed thickness defining retort size.

Comprises an agitated conical bottom vessel with transfer eductor, fresh carbon feed chute and electric monorail for supply of the carbon to your elution system. Gentle agitation reduces the carbon fines introduced into your CIL/CIP system

Used in conjunction with the Transfer Water System, this system recovers carbon fines with high gold bearing loads from the transfer water assisting to reduce the high (up to 50g/t loss) carbon losses experienced in the CIL plant.

This system recovers hydraulic transfer used for carbon movement around the circuit. Hydraulic transfer rather than impeller pumps reduces attrition of the carbon extending your carbon life and lowering solids to tails. The transfer water recovery system incorporates a large transfer water vessel with a transfer water pump system providing water for carbon transfer around the plant.

This sludge recovery equipment aides in the recovery of gold sludges when stainless steel mesh cathode wire is used in the electrowinning cells rather than the traditional mild steel wool where gold is plated to the wool. Sludges and gold fines are collected and dried to a cake suitable for post thermal drying prior to being smelted in the barring furnace.

carbon regeneration kilns | nutec bickley

carbon regeneration kilns | nutec bickley

Nutec Bickley rotary kilns for carbon reactivation offer a very efficient way to clean activated carbon so that it can be reused. The kiln is based on the successful GFC design already used throughout the gold mining industry.

Nutec Bickley rotary kilns for carbon regeneration are furnished with a complete control system which will permit kiln operators to regulate all of the kiln parameters, such as carbon feed rate, process temperatures, steam flows, kiln pressure etc.

Both the entry and the exit of the drum are supplied with a spring-loaded rotary seal with a graphite impregnated seal medium and with an improved labyrinth system to stop the superelastic carbon from bouncing into the seal face and causing grinding and premature failure of the seal.

In our carbon regeneration kilns we have the ability to run at higher temperatures so that organic contamination is removed more efficiently. Regenerated carbon is very close to virgin carbon activation levels after treatment.

With our SCADA systems, the kiln operators are able to have complete control of their firing process, enhancing efficiency and productivity. Our latest Industry 4.0 developments integrate the latest technology to not only monitor the process, but also to keep the kiln operating in its peak performance with smart maintenance technology. All the data generated during the firing process is stored in our SCADA system, which then is used to generate reports, graphs and intelligence data, to help customers in their decision making process.

Our kiln system cools down the carbon with a quench tube, reducing the carbon temperature down to 250C (480F), in order to avoid thermal shock as the carbon is dropped into a quench tank for final cooling.

The steam is in turn superheated and it flows into the drum exit end to provide a very efficient supply of the process steam which both aids the regeneration and keeps the pressure controlled, to inhibit oxygen ingress. The steam flow can be adjusted.

Nutec Bickley rotary kilns for carbon reactivation are furnished with a complete control system which will permit kiln operators to regulate all of the kiln parameters, such as carbon feed rate, process temperatures, steam flows, kiln pressure etc.

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