Gold ore processing equipment can help us better concentrate gold and get high-grade gold concentrate. As a gold ore dressing equipment manufacturer and producer, Xinhai Mining Equipment has established a good brand image for more than 20 years relying on high-quality equipment quality, strong independent innovation ability and considerate customer service ability. As the backbone of the mining industry, Xinhai has achieved leapfrog development and demonstrated the strength of "Made in China".
Gold ore beneficiation needs to go through several stages: crushing and screening, grinding and classification, separation and tailings treatment. Next, we will introduce the gold ore beneficiation equipment according to different stages and show the characteristics of Xinhai Gold Mine equipment.
Generally, the content of gold ore is low, the particle size is fine and the composition is complex. The commonly used crushing and screening process in industry is mainly a three-stage closed-circuit process, that is, through coarse crushing, medium crushing, fine crushing and screening to break the mineral to the appropriate particle size. The common three-stage closed-circuit process is as follows:
| equipment | classify | Product granularity（mm） |
| Jaw crusher (coarse crushing and fine crushing) | Simple swing jaw crusher, complex swing jaw crusher | 160～320 |
| Rotary crusher (coarse crushing) | Central discharge type gyratory crusher, hydraulic gyratory crusher | 75～320 |
| Cone crusher (medium and fine crushing) | Spring cone crusher, hydraulic cone crusher | 22～75 |
| Screening machine | Circular vibrating screen, linear vibrating screen | 0～12 |
With reference to the internationally advanced crushing and screening design concept and manufacturing technology, and in combination with the company's many years of beneficiation project experience, Xinhai has developed a variety of crusher and vibrating screen models to meet the market demand to achieve different levels of coarse, medium and fine crushing and screening, and comprehensively meet the production requirements of various processing capacity and various materials.
The grinding operation of rock gold mine usually adopts one-stage or lattice ball mill+overflow ball mill two-stage grinding. The second stage grinding operation and spiral classifier or hydrocyclone form a closed loop to ensure grinding fineness.
In view of the shortcomings of the traditional mill such as fast wear and large energy consumption, large mining machine manufacturers such as Xinhai have carried out a series of reforms on the ball mill, such as the adoption of new wear-resistant rubber lining plates, the change of rolling bearings to sliding bearings, and the enlargement of the mill, which not only improves the operation rate of the mill, but also extends the service life of the equipment, and creates economic benefits for the enterprise.
In line with the principle of "less grinding and more breaking", Xinhai has further improved a series of grinding and grading equipment to achieve free grinding of different sizes within the range of 0-2500 mesh, and at the same time timely separate qualified sizes to avoid unnecessary grinding, and send them to the sorting operation as soon as possible.
There are two stages of gold ore dressing, one is placer gold ore dressing and the other is rock gold ore dressing. The content of gold concentrate in placer gold ore is high, and it mostly exists in the form of sand particles. Therefore, gravity separation process is often used in separation. After pretreatment and desliming, the coarse gold particles can be directly obtained by gravity separation method; The suitable gold separation process is selected for rock gold ore according to the ore composition and composition. The commonly used gold separation processes are mainly cyanidation, flotation and gravity separation.
Commonly used gold flotation equipment includes XCF aerated stirring flotation machine, KYF aerated stirring flotation machine, SF mechanical stirring flotation machine, etc; Commonly used placer gold beneficiation equipment includes jig, shaker, spiral chute, centrifuge, etc. The commonly used gold cyanide equipment includes: desorption electrolysis system, zinc powder replacement device, leaching agitation tank, etc.
The commonly used tailings treatment methods mainly include tailings re-selection, tailings dewatering (tailings dry discharge) and tailings filling the goaf. From gold concentrate dewatering to tailings filtration and dry drainage, Xinhai has successfully independently developed various types of thickening and dewatering equipment, which can easily achieve sedimentation within the range of 20-3500 ㎡ and achieve better solid-liquid separation effect.
Commonly used gold mine tailings treatment equipment include thickener, filter press, dewatering screen, filter, etc.
The above introduces the commonly used beneficiation equipment for gold ore beneficiation. Xinhai has been developing beneficiation equipment for more than 20 years with rich experience, reliable equipment quality and perfect after-sales service. If you need, please contact us.
