Small Scale Hard Rock and Alluvial Gold Mining Processing Plant
The principle of rock gold mining process is to maximize the recovery rate of gold & the associated heavy minerals from river firstly, and then separate gold from the associated heavy minerals by joint mining solutions such as gravity separation, amalgamation, etc.
Gelin designs the rock gold process flowchart (rough) which the capacity from 3- 200 tons per hour and so on.
Main equipments include vibrating feeder, jaw crusher, fine crusher(hammer mill), belt conveyor, ball mill, spiral classifier, centrifugal concentrator, shaking table, jigger machine, ...
The project is with low invest but high return which already recommended by many customers.The gold gravity separation process enables sustainable and cost-effective gold recovery >70%.
Basic Stages
1. Crushing: Larger tonnage will require primary and secondary crushing for maximum efficiency in size reduction,vibration feeder adopted is for evenly ore feeding. Main refers to Coarse Jaw Crusher,Fine Crusher,Vibration Feeder,Belt Conveyor.
2. Grinding: Grinding particles to more small size or powder. Ball mill and Wet pan mill are usually used.
3.Gravity Separation:Refer to jig machine,centrifugal concentrator,spiral chute,shaking table.
4. Magnetic separation (Optional):Normally ore includes magnetic Iron materials,so magnetic separator well needed for final separation.
Above is for reference only,we also design different process flowchart depends on customer's actual mining condition.
Step 1---Crushing: Rock ores within 300mm evenly fed by vibration feeder to vibration screen and vibration screen with layers will screen ores with different sizes,ore below 18mm sent to bin with swaying feeder by belt conveyor and ore above 18mm sent to jaw crusher by belt conveyor for first rough crushing and then sent to hammer crusher for second fine crushing.
Jaw crusher (
click for more details)
is composed of bracket, jaw, eccentric shaft, jaw plate, spring, etc. The maximum compression strength of materials to be crushed is 320MPA. PE series jaw crusher is commonly used for primary crushing, and PEX series is used for secondary crushing and fine crushing.
Gelin provides jaw crusher with different types(stationary or mobile type,combination with other machines,Diesel engine or electric motor) and capacities(from 2-800tph) , meeting all customer's requirement.
Hammer crusher (
click for more details) is one of the main types of equipment to crush limestone, coal or brittle materials of below medium hardness in industrial departments such as metallurgy, building material, chemical, as well as water and electricity. It has characteristics including big crushing ratio, high production capacity, uniform particle size of crushed products etc.
Step 2---Grinding&Classifying: The crushed and screened particles below 18mm sent to bin with swaying feeder by belt conveyor,and the sway feeder will continuously and evenly feed the particles to ball mill for grinding,grinded materials with mud slurry go to spiral classifer for washing and classifying,and coarse size minerals will be resent to ball mill for regrinding.
Ball mill (
click for details) is a key equipment to grind the crushed materials, and the ball mill is widely used in powder-making production line including cement, silicate, new-type building material, refractory material, fertilizer, ore dressing of ferrous metal and non-ferrous metal, glass ceramics, etc. And the ball mill can grind various ores and other materials with dry type and wet type. There are two kinds of ball mill, grate type and overflow type due to different ways of discharging material.
Spiral Classifier(
click for more details) is widely used to pre-grading and inspection grading in closed circuits when used in the production flow of metal processing. According to the difference in sedimentation rate of mineral particles and mud, the particle sizes of ores with 1.5mm-0.03mm are classified.
Waste mud or water for ore sand can be separated from the ores. It's also usually applied to ore washing, desliming and dehydration and so on.
Step 3---Gravity Separation for Enrichment: Through the pump,all final materials comes out from spiral classifier will be sent to centrifugal concentrator for concentration,remove the light density material the output heavy density concentrates will be sent to first stage shaking table for further concentration,the middlings will be reprocessed by second stage shaking table for further clear concentrates.
Centrifugal concentrator (
click for more details) is known as centrifuge or centrifugal chute. Strong centrifugal force produced by high speed spin strengthens the process of gravity separation and effectively recover the ultrafine ore particles,normally feeding size is 0-6mm.Nowadays, centrifugal concentrator is widely used for the recovery of gold, tungsten, lead, manganese, iron, etc.
GELIN
Shaking Table (
click for more details) is one of the main equipments of gravity concentration.It is applicable for separations of fine-grained and micro-grained rare metal, ferrous and non-ferrous metal, precious metal , coal and other minerals. It can carry out ore concentration operation independently and also can operate in conjunction with jig, screw separator, centrifugal separator and other equipment.
The table surface is constructed of ore sand or slime and is made up of glass fibre reinforced plastic or aluminum alloy.
The machine is normally used for different operation such as rough selection, elaborate selection and scavenging for large, medium and small-sized factories.Such shaking tables are divided into ore sand tables and ore slime tables. Ore sand tables apply to the sorting of coarse ores and ore slime tables apply to the sorting of fine ores.
Step 4--- Upgrading: Use amalgamator for a last clean concentrate which are separated from shaking tables.High-temperature pouring and calcining of pure gold to condense it into high-purity gold nuggets after using gold smelting furnace
| Gold mercury amalgama barrel (click for more details) is the traditional gold refining machine; it's been widely used to mix the mercury and gold concentrate from shaking table, sluice box or gold concentrator, in order to get the pure gold from black sand.Then distill the gold amalgam in the mercury retort and get the pure gold. |
IGBT Small Capacity Medium Frequency Induction Melting Furnaces (click for more details) adopts IGBT as the core inverter, it mainly used for melting scrap copper, brass, bronze, aluminum, gold, silver, zinc, iron, steel, stainless steel, aluminum, gold ore, copper ore, other nonferrous metals, ferrous metals and metal alloys.It is the heat treatment prior to forging, sintering and hot rolling in casting and melting industries.
The melting furnace capacity is normally from 1 Kg to 150 Kg. |
Some Auxiliary Equipment
Ganzhou Gelin Mining Machinery Co., Ltd is an over 30 years professional manufacturer and exporter of mining machinery for crushing, screening, grinding, flotation, magnetic/gravity separation etc. in China.the machines are excellent for processing gold,diamond,iron ore, ilmenite, manganese ore etc. Gelin have a complete service system which can provide customer full service in mining field and after sales service.By now, Gelin's equipments and services are exported to over 60 countries,include America, Russia, India, Africa, Brazil, Chile,South Africa,Zambia etc. Sincerely welcome to visit our factory.
Customer Visiting
Our Services
One Stop solution for beneficiation plant service:
1.Engineering consulting available,it makes clients have a comprehensive understanding of beneficiation plant,including mine value,useful elements,mineral processing technology,plant scale,essential equipments,etc.
2.Arrange mineral beneficiation experiment after received the material sample and beneficiation test report will be done after test.
3.After reaching agreement with client,we start to engineering design,including planning,investigation,data collection, project evaluation etc. and then comes up with design scheme of beneficiation plant construction and working drawings.
4.Manufacturing the necessary equipments and arrange the shipment.
5.Complete services for Installation and commissioning and technical training(operating training,common problem solving training).
After-sale Service
Regularly visit customers to provide after- sale technical supports and to solve problems of beneficiation plant. For equipments supplied,we could provide one-year warranty and provide spare parts with preferential price in the long term and be responsible for any problems with the them.
Q: Are you a trading company or a factory?
A: We are a factory at Shicheng county with 110 workers,6 workshops covered 17,000m2 and office covered 2,500m2. Welcome to visit our factory at anytime.
Q: What is your payment terms?
A: By TT(Telegraphic Transfer), 100% or 40% Deposit before production and 60% balance payment paid off before loading from factory.
Q: How long is the guarantee period of your products?
A: The guarantee period is 1-2 years, pls ask staff for more details. And we will supply lifelong technical support service and the spare parts at lowest cost.
Q: Is it possible to produce customized products ?
A: Yes, most of our products are produced as required.
Q: Is it possible to provide sample for your factory to do ore-dressing experiment?
A: Yes, engineering consulting is available and we'd like to arrange mineral beneficiation experiment after received your sample and provide the test report.
Audited Supplier 
){kind=link}