High recovery rate Gold mining machine/Gold washing machine/Gold separator machine

Henan Dingke Mechanical Equipment Co.,Ltd Specializing in the production of various models Gold ore flotation equipment , Gold gravity separation equipment,gold ore CIP plant equipment We are one of the leading project suppliers for gold ore plants and we work closely with our customers to fulfill their specific needs for a customized packaged solution. Specialized in the fabrication of these machines for 25 years and this enables us to be in a leading position in the field of Gold Mineral Processing Plants & equipment.

Gold ore flotation production line:

Flotation process is one of the most widely used methods to process lode gold in gold beneficiation plant. In most instances, flotation process is used for processing sulfide minerals gold ores with high flotability and the effect is most notable.

1. General process

Primary Crushing----Secondary Crushing----Sieving----Third Crushing-----Grinding--- Classifying-----Flotation Separation----drying---- Concentrated ore

2. Application

Mine selection line is used for upgrading ores. After this process, the value of final concentrated powder will be greatly improved.

Our basic process is crushing, grinding, sieving, flotation separating and dewatering. The specific process is different according to ore, site and customers' requirements.

Mining gold ore first preliminary crushing by jaw crusher, crushing to a reasonable degree of fineness via hoist feeder evenly fed into the ball mill, ore crushing, grinding by ball mill.
After a ball mill grinding of ore fines go to the next step:classification.Spiral sorting machine by means of the proportion of solid particles precipitated in the liquid at different speeds principle,the ore mixture enters the grading machine washing,grading.

After washed and graded mineral mixture through the separator, Adding different drugs through the flotation machine after the initial separation of the mineral particles in the flotation machine is fed, depending on the mineral characteristics,so that the minerals and other substances to be separated.After the desired minerals are separated out, because the preliminary concentrated containing a lot of water,subject to the concentrator, and then through a dryer to obtain dry minerals.

Alluvial gold ore beneficiation line:

Alluvial gold ore beneficiation principle is that: using gravity separation to recover gold and all kinds of associated heavy minerals from the ore mineral sands as much as possible. Then gravity separation, flotation, mercury mixing, magnetic separation and electrostatic separation are combined to separate the gold and all kinds of heavy minerals, which can reach the purpose of comprehensive recovery. gold gravel mine beneficiation can be classified into crushing and sieving, desliming and beneficiation.

Practice proves that the gravity separation method is the most effective and the most economic method for processing alluvial gold mine. For the different grain size composition in alluvial gold, all kinds of gravity separation equipments have different effective grain size limits in materials processing, so reasonable alluvial gold beneficiation process should be the combined work by several gravity separation equipments.

Gold concentrate are got by through coarse beneficiation. Its gold content is 100 g/tons and heavy sand minerals are 1 ~ 2 kg/tons or more. For coarse concentrates that includes gold, there are three kinds of processing methods:

1. Using batea, the gold grains are dressed out in manual work and the heavy sands are abandoned.

2. Using mercury mixing tube for mercury mixing, the calomelene is got and the heavy sand aren abandoned.

3. Using manual work and mercury mixing for gold extraction, the heavy sands are sent to concentration plants. All kinds of heavy sand minerals can be recycled in magnetic separation and electricity separation.

Gold CIP Process Plants Equipments include the following equipments:

Granular coconut shell activated carbon, is widely used for recovery of gold from cyanide solutions. The process can be applied to clean solutions through fluidized bed adsorption columns, or directly to leached ore slurries by the addition of carbon to agitated slurry tanks, followed by separation of
the carbon from the slurry by coarse screening methods.

Gold cyanide is adsorbed into the pores of activated carbon, resulting in a process solution that is devoid of gold. The loaded carbon is heated by a strong solution of hot caustic and cyanide to reverse the adsorption process and strip the carbon of gold. Gold is then removed from the solution by electrowinning. Stripped carbon is returned to adsorption for reuse.

The major advantage of carbon-in-pulp recovery over Merrill Crowe recovery is the elimination of the leached ore solids and liquid separation unit operation. The separation step typically involves a series of expensive gravity separation thickeners or continuous filters arranged for countercurrent washing or filtration of the solids. For ores exhibiting slow settling or filtration rates, such as ores with high clay content, the countercurrent decantation (CCD) step can become cost prohibitive. Ores with high silver content will generally suggest that Merrill-Crowe recovery be used. This is because of the very large carbon stripping and electrowinning systems required for processing large quantities of silver. Carbon-In-Pulp (CIP): Carbon-in-pulp operation is a variation of the conventional cyanidation process. Ore is crushed, finely ground, and cyanide leached in a series of agitated tanks to solubilize the gold values. Instead of separating solids from the pregnant solution, as in the traditional cyanidation process, granular activated carbon is added to the leached slurry.

The carbon adsorbs the gold from the slurry solution and is removed from the slurry by coarse screening. In practice, this is accomplished by a series of five or six agitated tanks where carbon and ore slurry are contacted in a staged countercurrent manner.

This greatly increases the possible gold loading onto the carbon while maintaining a high recovery percentage. Carbon is retained within the individual CIP tanks by CIP tank screens. The opening size of the CIP tank screens is such that the finely ground ore particles will pass through the screens,
but the coarse carbon will not. Almost every imaginable type of screen has been tried for this application, with some types being much more successful than the rest.

1.Feeder 2.Jaw crusher, cone crusher 3.Vibrating screen 4.Belt conveyors 5.Ball mill 6.Spiral classifer 7.Hydrocyclone

8.Thickener 9.Leaching Tanks 10.Electrowinning and desorption device 11.Gold smelting furnace.

We can supply the whole line of gold leaching plant, including:

a. crushing system

b. grinding and classification system

c. leaching system

d. desorption and electrowinning device

e. gold smelting system

Training & service:

Training is FREE to every customer. Whenever you need us, for installation, maintenance, or proper use of our company machines, we will be right there for you. In addition, we provide 2-years warranty to make sure your machine runs consistently. We always keep certain inventory level of spare parts, which means the replacements can be shipped to you right away.

Producing high-quality and reliable machines is always our first priority, because we know that our success depends entirely on the satisfaction of our customers. We never give-up quality to save cost, instead we manufacture our machines to supply you the best need.

1. Provide technical advice and technical guidance free of charge.

2. Select the most suitable equipment for our customers and models.

3. Free send technical personnel to customer site planning, design the best technological process and equipment solutions.

4. According to the special requirements of customers design and manufacture of non-standard

Our company introduction:

Dingke has various technologists who specialized in 20 defferent field geology, mining survey, mining. mining machinery, layout for road and transportation in plant area , mineral processing, smelting, civil engineering, water supply and drainage, tailings, industrial design, electricity, automation, communications, investment banking, technical economy, budget estimate, etc. It has more than 10 technological achievements in gold, ferrous metal, nonferrous metal and nonmetal. Dingke has advanceyd technology and rich experience for mining and mineral processing. We have solutions to about 70 kinds of minerals including gold, silver, copper, lead, zinc, iron, nickel, chrome, titanium, vanadium, tungsten, molybdenum, manganese, arsenic, stibium, mercury, tin, rare metal, silicon sand(quartzite), feldspar, fluorite, apyre, baroselenite, garnet, graphite, diopside, rutile, spodumene, tourmalin, phosphorite, plaster, etc.

The leading products of our company include: ball mill, raymond mill, sand making machine , jaw crusher, hammer crusher, vertical compound crusher, rotary kiln, drier, vibrating screen, sand washer, magnetic separator, SF flotation machine, roll crusher, belt conveyor, bucket elevator, spiral classifier, impact crusher, disk granulator, final screen, lift mixer, table concentrator, centrifugal ore separator, high-efficiency concentrator, disc feeder, pendulum type feeder and hydraulic cyclone.

Till now, our products are sold to 130 countries, being the popular equipments in global crushing and grinding industry. With the development of our Dingke, we would like to help more and more customers start their business in mining and construction industries, offer them the best solution, much more advanced machinery and better service.

Our company production of other equipment :