Chrome ore deposits are mined by both underground and surface techniques. most chrome ore must be processed by the chrome ore processing plants. the mainly chrome ore beneficiation method is gravity separation. 

Process Introduction

1. Large raw chrome ore for primary crushing are fed into the jaw crusher by Plate feeder and are reduced to 8 inches or smaller. After first crushing, the material will transferred to cone crusher by belt conveyor for secondary crushing; the crushed chrome ore stone will then transferred to vibrating screen for classifying. After classifying, the parts whose size below the mesh size will be transferred away as final products, while the other parts will return to cone crusher, thus forming a closed circuit. Size of final products can be combined and graded according to your specific requirement.
2. The smaller crushed chrome ore is fed to ball mill for grinding. Inside the ball mill, the crushed chrome ore will grind the ore to about 0.2 mm with 3-inch steel balls.
3.  Screened products are transported to the jig for rough separation and to three concentrating tables for fine separation. Then, tailings are delivered into the jig in the next stage for screening for 4 times like this. All tailings int he concentrating table are sent to tailings reservoir after tailings dry stacking.

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• Exhibition Name: Bauma China 2016
• Dates: 22th-25th Nov, 2016
• Venue: Shanghai New International Expo Center
• Booth No.: E6.410
• Tel: 0086-371-67988500
• E-mail: kefid.online@gmail.com

Mobile and semi-mobile crushing, screening, recycling, sand washing, stockpiling, compacting and material handling solutions. Kefid product range includes jaw crushers, cone crushers, vertical shaft impact crushers (VSI crusher), impact crushers, screens and conveyors. 

Mobile and semi-mobile crusher are new technology equipment, they are widely chose by our global customer. By now, we market our products and services in over 100 countries or area, and are active in industries as diverse as coal, diamond, gold, cobalt and platinum mining, aggregate and sand quarrying, construction, civil engineering and recycling, cement mill plant and clinker processing plant. 

We also Need Agent or Distributor in over 100 countries for our machines, contact us for requirement if interesting.

We promise for our customer with the same strict specifications and exacting standards as our equipment, Kefid replacement parts provide reliable performance for years to come. Whatever your equipment, we have the right OEM certified spares for your rock-crushing needs.

Whatever your crusher, we have the right spare parts:

• Jaw crushers
• Impact crushers
• Cone crushers
• Vsi sand crusher
• Track mounted crushers
• Wheel mounted crushers

As the leading equipment manufacturer, Kefid is here for you and your spare part needs. Correct tolerances and dimensions ensure the best results for your stone crushing process. And also are reliable equipment performance, improved equipment availability, long service life and reduce change times.

The stone crushing production line is used to product building sand and stone. It mainly consists of Vibrating feeder, Jaw crusher, Impact crusher, Vibrating screen, Belt conveyor, Centralized electronic control. The processes of production line: firstly, Vibrating feeder sends the stone to Jaw crusher for coarse crushing, then the materials send by Belt conveyor to Sand maker for fine crushing, after fine crushing the materials are delivered to Vibrating screen for screening, the qualified size materials are fed into Sand washing machine, then use Belt conveyor transports the finished products, the unqualified size materials should send to Sand maker for second process.

So there are several factors need to be considered in the design of crushed stone production line: First of all, all levels of crushers should be reasonable combination, the matching of crushers will affect the stone crushing and the reasonable combination can bring fantastic result. Secondly, the rigorous spatial arrangement makes the production line has features of small footprint, high investment and economic profits, the high quality of the materials, also equipped with advanced electronic control system to ensure the operating of production line.

A complete set of Mobile crushing & screening plant mainly consist of Vibrating feeder, Jaw crusher, Cone crusher, Vibrating screen, etc.  (mobile crushing plant and mobile screening plant). It can complete the crushing and screening operations at one time. The Mobile crushing & screening plant is suitable for crushing the construction waste, rock and ore, concrete material, and widely used in mining, building material, highway, railway, etc. It can adjusted the outlet size and capacity to meet the customers’ requirements, and it also adopts the integrated equipment has strong mobility and high efficiency. It’s a set of walking crushing & screening equipment combining transportation, crushing and screening, and operating very convenient.

Mineral Ore Dressing Process

Mineral ore that suitable for deep processing are gold ore, copper ore, magnetite, manganese ore, lead-zinc deposit, etc. For most mineral mine, the processing capacity usually is not very large, the common crushing and beneficiation capacity are about 1 ton to 100 ton, so we can call them as small scale mineral ore process. Equipment used in the whole plant are also with small capacity. As one of our Ghana customer, who has a gold ore mine and the gold ore dressing plant is of 10 ton per hour. We recommend to him with our small jaw crusher, small beneficiation machines. But different equipment can choose for different mineral ore processing, Kefid engineer team can give you whole support on various mineral ore deep processing flow desing and equipment choice.

Mineral Ore Beneficiation Methods

Beneficiation means the following asapplied to iron ore: milling (crushing and grinding), washing, filtration, sorting, sizing, gravity concentration, magnetic separation, flotation and agglomeration (pelletizing, sintering, briquetting, or nodulizing). Although the literature suggests that all these methods have been used to beneficiate iron ore, information provided by members of the American Iron Ore Association indicates that milling and magnetic separation are the most common methods used. Gravity concentration is seldom used at existing U.S. facilities. Flotation is primarily used to upgrade concentrates from magnetic separation by reducing the silica content of the concentrate.

Beneficiation flow design and equipment option

In general, beneficiation production line consists of jaw crusher, ball mill, classifier, magnetic separator, flotation machine, concentrator and dryer and other major equipment, with feeder, hoist, conveyors can be composed of complete processing production line. The production line has the advantages of high efficiency, low energy, high handling capacity, economic rationality.
The beneficiation process production process is as follows: first jaw crusher, ore mined preliminary broken, broken to a reasonable degree of fineness via elevator, feeder evenly into the ball mill, ball mill ore crushing, grinding.

Here are video for our crusher and mill, customer can click to see more video details at website. if you need to know other information or video for mining crushing and grinding machines, can contact with our online service to get more catalog and video information.

Mobile Crusher	Jaw Crusher	PF Impact Crusher	PFW Impact Crusher
Cs Cone Crusher	Hc Cone Crusher	Sand Making Crusher	Vertical Grinding Mill
Mining Plant	Stone Crushing Plant	Grinding Plant	MTM Grinding Mill

European Version Jaw Crusher and Ordinary Jaw Crusher Difference?

What is the difference of european version jaw crusher and ordinary jaw crusher? How to choose a suitable crushing machines according to different requirement an save cost? European version jaw crusher feed port is of V-shaped, the actual material feed size is slightly larger than GM jaw crusher machines, the adjustment method is also different. Generally use Universal broken jaw adjust discharge range adopt drawing and push rod. Jaw crusher PE900, PE 1200 and other have hydraulic adjustment set; European version jaw breaking machines use of wedges and hydraulic adjustment. European version jaw crusher’s productions are between 10-600 tons per hour.

Final Crushing Particle Percentage Range is?

Compound fixed stone production line, different particle size has different percentage in the final material file? For example: the limestone 200TPH production line, kefid company plant design is ZSW960X3800 + PE750X1060 + PF1315, among the discharging material whose size is less than 50mm, discharging 0-6mm accounted for about 25%,6-13mm accounted for 15%, 13-19mm accounted for 25%, 19-25 accounting for 10%. But different material have different final size range, if need more technical support, please feel free to contact with our engineer.

The Stone Crushing Line Dust Removal Method is?

In a traditional stone production line, jaw crushing process has little dust and impact crushing process has large scale dust due to the powerful stone impact. Mist sprinkler equiopment should be equipped in material inlet position so as to reduce dust. The output material has not much dust after absorbing moisture in impact crushing process. Screening part no need to add water. It should be noted that the amount of water must be injected into the impact crusher in right amount. If the water is too small, there will also has dust; if the water is excessive, it will prone to clogging vibrating screen whose aperture is of 5 mm or less. Both of these action will reduce the screening effect. Some customer also choose the fans and cyclone dust collectors to remove dust, but it can not get good effect.