Method for selecting non-ferrous metal ore containing a small amount of gold

Non-ferrous metal ores often associated small amount of gold. These golds are usually contained in polymetallic ore and copper ore mainly composed of copper , lead and zinc . The grade of gold is not high, generally not more than 2 grams / ton. However, due to the large scale of non-ferrous metal deposits, the production of associated gold accounts for a large proportion of the total gold production. In the recovery of this part of the gold, we should first consider the non-ferrous metal minerals as a qualified product, and then provide the necessary conditions for the recovery of gold or special gold selection operations (such as amalgamation , cyanide), in order to enrich the gold as much as possible. In the non-ferrous metal concentrate products or enriched in special gold selection operations. To deal with this type of ore, it is important to grasp the symbiotic relationship between the occurrence of gold in the ore, gold and other minerals, and use this as a basis to determine a reasonable process. For gold enriched in various concentrates, it is generally recovered in the smelting. This type of ore sorting method has been discussed in detail in non-ferrous metal beneficiation .

LINA Extrusion Pelletizer

Most of the polymer must be kneaded and then granulated before it is made into a final product. Sorted by pelletizing ways, LINA rubber & plastic granulator can be divided into four categories: 1. Hot-cutting and air-cooling pelletizing method. 2. Under-water granulating method. 3. Water-strand extrusion method. 4. Water-ring granulation method. LINA granulator can meet the granulation needs of high-viscosity and low viscosity rubber and plastic materials, as well as some new materials and chemical additives.

LINA Under-water Extrusion Granulator

LINA`s rubber and plastic under-water pelletizing machine is suitable for high-viscosity materials that may easily stick on the rotary cutter and are very sensitive to temperature, such as high viscosity copolymer elastomer (EVA, TPU, TPE, TPR), high viscosity hot melt adhesive and paraffin. This type of is actually similar to die surface hot cutting pelletizing method, the difference is, instead of cool air, there is a steady flow of water through the mold surface and the water directly contact with the die surface. The size of the pelletizing room is such that the blade is free to rotate over the die surface without limiting the water flow. The molten polymer is extruded from the die surface, and the pellets are brought out of the granulation chamber by means of the conditioned water to enter the centrifugal dryer.

Assembly Ling Diagram of LINA Under-Water Extrusion Granulator

Advantage of LINA Pelletizing Line

1. The unit has the whole unit process chain, sound and light failure alarm and fast lock fault point and other control functions. All parts that are in contact with the material are made of stainless steel.

2. High accuracy of temperature control system to ensure the temperature sensitivity of the material.

3. It adopts the drop type separating method after cutting process, to avoid Particle agglomeration and ensure particle cooling.

4. Feeding system of the pressing machine adopts heater and reversing device to solve problem of power outage, material crash and cleaning.

5. Especially, the barrel and die head adopts advanced foreign techniques to ensure and control the dangerous occurred when the pressure is uncontrollable. The honeycomb filter plate is easy to clean and quickly change the mesh and the die head t easy to leak.

6. The hoist adopts automatic return technology to ensure the working efficiency.

7. The technological combination of dual-pull forced feeder and single screw not only meet the high requirement of secondary continuous mixing, but also solve the problem of time and power consuming of traditional working process.

Specifications of LINA Extrusion Granulating Line

Under Water Extrusion Pelletizer

Underwater Extrusion Pelletizer,Underwater Pelletizer,Pellet Machine,Plastic Pelletizing Machine

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