Characteristics of iron ore:
Iron ore is mainly magnetite (the highest grade of about 73%), hematite (grade 70%), limonite (grade 63%), siderite, pyrite and iron silicate mineral salt; iron ore hardness is below average. Compared with the river pebbles are relatively easily broken, but when broken it has relative requirements for monomer dissociation and particle internal interface of the micro-cracks and internal stress. So, there are higher and higher demand for the operating principle of the crusher, use and process design.
Use of finished product:
Iron ore is an important raw material for steel production enterprises; elects the iron and other elements of natural minerals (iron ore) after crushing, grinding, magnetic separation, flotation, the re-election program gradually.
Development prospects:
Although China has abundant iron ore reserves but due to poor ore composite ore, outside the ore body is complex, smelting technology and other reasons, giant BHP Billiton and Brazil's CVRD, Rio Tinto, FMG almost control technology and price in the international market. Although China is the world's largest buyer, accounting for as much as 50% of the international iron ore trade, but also be manipulated. Chinese iron ore annual demand of 7-8 million tons, the annual rate of 25% increments. Only to reduce costs, improve technology, improve mineral efforts and increase mining efforts can the mining enterprises be possible to occupy a certain share in the domestic and international market; about reducing the cost, mining company crushing process and the polishing material should be the first consideration.
Configuration program:
1. Serious waste
If the broken system is not able to provide sufficient fine crushing capacity, the particle size which enter the dry sorter is not under control, a large number of large materials will be cast out in vain after blasting, transshipment, broken. When dry separation is not magnetic, only the Weathered and a small portion of the broken fine material can be magnetic, the waste is more than the income, the cost increased significantly.
2. Simple and crude process
Traditional coarse type jaw broken and hammer crushing machine mode should be eliminated, jaw crusher does not play a proper function. The particle size is too large (over 50mm), over-reliance on scraps of hammer crusher cannot play a specialty (fine crusher feed size should not exceed 30mm), cannot provide a good feed material for dry sorter and hammer wear unusually severe; not only inefficient, but adding too much investment for equipment maintenance; if the broken system can provide material about 10mm to 30mm, then dry separation efficiency will improve a lot.
3. Economic
Increase the one-time investment to gain the greatest benefits; considered from the perspective of long-term operating costs, coarse jaw crusher + fine jaw crusher + fine crushing machine, or coarse jaw crusher + cone crusher + fine crusher is the most effective, most energy efficient and highest production mode, despite an increase in the first input, optimize the configuration to run less than two months it will recover the cost of the polishing material and equipment maintenance costs.
4. Maximizing the benefits
Reasonable production line design can maximize the reduction of production costs. Before the new project plan carried out, doing costing, looking more and listening more before the purchase of equipment, choose energy-efficient, high reputation products, so that per power dissipation, each ore use, construction machinery operations, artificial, and every penny to play the maximum economic benefit, and you can be the successful investors!
Specific process configuration should be based on the specific analysis of the actual situation of the customer site. Welcome to visit and experience Kefid's star service!
For more details, you can contact us online or send email to sales@kefidinc.com now.
