Gold Mining Centrifuge Machine Leaching Processing Equipment Customizable Capacity

Product Description

Product Description

Metal recovery or concentration by adsorption on activated carbon has been the dominant process for gold extraction after leaching by cyanide in aerated alkaline slurry. The continuous processes of gold recovery by adsorption on activated carbon in agitated tanks, namely the carbon-in-pulp (CIP) and the carbon-in-leach (CIL)processes, have been widely used since the 1970s.

In the CIL (Carbon in Leach) or CIP (Carbon in Pulp) plants while the precious metals are being dissolved by the cyanide solution in the large volume tanks the dissolved metals are adsorbed by the active carbon. These processes are generally preferred for therelatively high grade and lower reserve ore types with very fine graded precious metals.

Work Principle

Please enter the title here

This street light features high brightness, energy saving, environmental protection, and easy installation. It has a waterproof rating of IP67 and has passed CE certification. It is suitable for schools, parks, roadsides, factories, squares, etc. It has a warranty period of 3 years. Moreover, we can provide various styles to meet your needs.

Gold CIP/CIL Leaching Process Explained

The gold CIP (Carbon-in-Pulp) processing is widely used to extract gold from ore. It mainly involves using activated carbon to adsorb gold from a cyanide solution, then eluting and regenerating the carbon for reuse.
Gold CIL (Carbon in leach) Process leaching and adsorption are carried out simultaneously, simplifying the CIP process steps.
 It is mainly suitable for beneficiating gold-containing oxidized ore with high slime content and containing carbon ore. JXSC equipment has fast absorption, high recovery rate and low consumption cost.

Gold CIP/CIL main steps

The main steps of the Carbon Pulp Process (CIP) include feeding, crushing and screening, grinding, leaching pretreatment, leaching, activated carbon adsorption, gold-loaded carbon desorption and electrolysis, gold melting, carbon recovery and utilization, and tailings water recovery.

1. Feeding+crushing screening process

 The vibrating feeder evenly transports the raw ore to the jaw crushers, and the fine jaw crusher crushes the rock below 20-25mm. The +20mm material is back to the fine jaw crusher for further crushing. The 0-20mm powder material is transported to the ball mill for grinding.

2. Grinding

 Grind the 0-20mm material from the jaw crusher into fine powder to release gold from the stone. The discharge from the ball mill enters the spiral classifier or hydrocyclone for classification. The return sand (bottom flow) from the classifier or cyclone will return to the ball mill for further grinding. The overflow of a classifier or cyclone are small particles, with 80% less than 200 mesh (0.074mm).

Gold CIP/CIL main steps

3. Leaching pretreatment

Pump the 200 mesh slurry to the thickener. Before the slurry enters the thickener, there is a safety screen to prevent coarse particles. The slurry under the screen directly enters the thickener, and it needs to add flocculants to the thickener to accelerate sedimentation. The overflow water from the thickener enters the sedimentation tank, and the settled water is recyclable. The function of a thickener is to allow the slurry to reach a certain concentration before entering the following leaching tank.

4. Leaching

 The bottom flow of the thickener will enter the mixing tank with a height difference. Then the slurry pump pumps the mixed slurry into the double impeller leaching tank and adds sodium cyanide, without activated carbon.

5. Activated carbon adsorption treatment

 After the gold is leached and dissolved in the solution, the slurry flows into the double impeller stirring adsorption tank at the back, where activated carbon is in it. The activated carbon adsorbs the gold in the slurry to become the gold-carrying carbon, then extracts gold by a carbon extractor.

6. Desorption and electrolysis of gold loaded carbon

 The gold-loaded carbon is filtered through a linear vibrating screen to remove impurities. The gold-loaded carbon enters a normal temperature and pressure desorption electrolysis system, and after electrolysis, obtains gold mud. Then dry the gold mud in an oven. Finally, use a gold melting furnace to melt the gold bars.

7. Gold-loaded carbon recycling:

The desorbed gold-loaded carbon can be dried in a drying oven and reused. 

8. Tailings water recovery system:

The tailings from the adsorption tank first enter the linear screen to screen out the carbon shavings. The tailings slurry is pumped to the cone concentration tank to reach the appropriate slurry concentration before filtration. Then, the tailings slurry is fed to the plate filter press by a high-pressure pump for filtration and recovery of tailings water. The filtered dry tailings are transported by truck and the tailings flow into the water tank.

If there is no request to recycle tailings water or treat tailings, add some bleaching powder to the tailings to treat acidic chemicals and reduce their impact on the environment. Then, the tailings can be discharged to distant places through water pipes.

Technical Data

Model.	Tank Spec:mm (Diameter.* Height)	Effective Volume M3	Impeller Diameter:mm	Power: kw
LT2.0×2.5	2000×2500	6	909	2.2
LT3.0×3.5	3000×3500	21	1130	4
LT3.5×3.5	3500×3500	30	1310	5.5
LT4.0×4.5	4000×4500	48	1750	7.5
LT4.5×5.0	4500×5000	71.5	1750	7.5
LT5.0×5.6	5000×5600	98	2046	11
LT6.5×7.0	6500×7000	195	2400	22
LT7.0×7.5	7000×7500	245.4	2400	22
LT8.0×8.5	8000×8500	342	3300	30
LT9.0×9.5	9000×9500	515	3900	37
LT10×10.5	10000×10500	705	4000	45

Product Display

The Main Machines & Accessories include below:

1. Feeding + Crushing system crush rock from 210mm to below 5mm :

Feeding Hopper+Chute Feeder+ Rough Jaw crusher+belt conveyor+Fine jaw crusher+vibration screen+ Roller Crusher 

2. Grinding System  (grinding material to small powder 200mesh) : 
Storage Bin+ Electromagnetic vibration feeder+ belt conveyor+Ball mill+HydroCyclone 

3. Leaching Pretreatment : 
include Thickener + Agitation tank ( for adjust density of slurry after thickener) +Liner vibrating screen 

4. Leaching and Activated Carbon Adsorption processing :
 include 2pcs double impeller Leaching agitation tank+ 7pcs double impeller Adsorption agitation tanks+ Roots blower(work for adsorption agitation tank)+ Liner vibrating screen for tailing dewatering+ Liner vibrating screen for screening carbon+ Cabon extractor +Cabon screen 

5. Gold-loaded carbon desorption and electrolytic Stage: Include :
 normal temperature& normal pressure Elution & Electrolysis system+Drying Oven for gold mud+ Gold smelting furnace 

6. Carbon kiln for carbon regeneration 

7. Tailing Water recycle system :
 High pressure slurry pump+plate filter press+cone slurry tank for making suitable density of slurry before sending to filter 

8. FIVE Reagent adding devices system: 
each system include reagent agitation tank+reagent slurry pump+ reagent tank.
1) Flocculant make-up system for thickener
2) sodium cyanide reagent make-up system for 2pcs leaching agitation tank 
3) Lime make-up system for 2pcs leaching agitation tank (for PH control) 
4) sodium hydroxide&hydrochloric acid reagent make-up system for cone agitation tank

5) sodium hydroxide&&clean water&sodium cyanide reagent make-up system for Elution & Electrolysis system

 
9. Water pumps for water supply to complete plant . 
1. Slurry Pumps for plant 
2. Compelete set electric control pannels 
3. Complete set Cables&wires 
4. Diesel Generator for plant machines power 
5. Complete set Water pipes &slurry pipes

After Sales Service

Company Profile