HB REFRACTORY Company
 

                 Contact Us
Empire Refractory Company
Magnetite beneficiation equipment

Magnetite iron mineral reserves in China accounted for a large proportion reached 48.8%. To identify reasonable magnetite beneficiation process equipment and machinery to deal with magnetite mine for our country and the entire steel industry has a very important significance. In recent years, the beneficiation workers in China after unremitting efforts magnetite beneficiation equipment and technology has been greatly developed grade iron ore has been greatly improved. Vibrating screen, sand production line, crusher, individual concentrator has reached 70% of the national average increase of more than l%; impurity content decreased significantly, and some concentrator application of a single magnetic separation silica content down to 2 % or less. Iron and create favorable conditions, but also the development of the mine. Despite this, there are still some problems in the development, as described below:

(1) grinding a single mechanical equipment. Of grinding machinery and equipment of a single species, and magnetite beneficiation plant can only be selected in several types on the market today only, is nothing more than self-mill, ball mill, rod mill. Autogenous grinding its selective grinding role beneficiation optimistic about the workers, but its hard grind the presence of particles gave created a significant obstacle to the popularization and application. This is because dealing with the hard grind particle crushing system to enter the restricted iron is very strict and difficult to achieve non-ferromagnetic metal is removed, the ferromagnetic metal and difficult to separate the magnetic minerals, stone crushing system is difficult to run, since The mill‘s production capacity can not be increased, can not meet the the beneficiation production requirements, thus limiting the autogenous mill in the popularization and application of magnetite Hill. Accurate iron removal device, and the stone crushing system to relax the restrictions on the iron boundaries, the direction of future research.

Beneficiation of domestic workers and equipment manufacturers in recent years, research in this area, and received some effect. For example, the column mill has been in field trials, obtain some very important data, laying a foundation for future research. Ball mill In addition to the specifications, the range of choice is limited. Domestic in this area due to inadequate attention invested little beneficiation workers have no choice. The result is that only processes to adapt to the equipment, beneficiation process can not be optimal.

In recent years, mineral processing workers abroad roller mill the Aisha grinding, mixing mill some research, still remain in the pilot phase, to promote the application of certain difficulties because of its high cost, really into the beneficiation The process has no precedent. Developed in recent years, domestic column mill, generalized new grinding equipment for mineral processing workers, this kind of grinding equipment has its unique role in the mineral grinding, and low cost, low cost of grinding, beneficiation to provide new ideas, opened up a new way for grinding. Before entering the market in recent years, and magnetite mineral processing equipment is still in the experimental stage, the quality of its design, manufacturing precision, wear-resistant materials, continuous operation capacity, can be manipulated to be further improved. Its processing power is also very small, is not conducive to large-scale production, into a study should be in large-scale equipment clearance adaptive. Reduce the number of manual adjustment. In order to promote the use of magnetite beneficiation plant.

(2) grinding operations to the mineral particles is too wide. Beneficiation grinding process generally two paragraphs on the choice of grinding media is very difficult. Targeted particularly strong choice grinding media difficult to do, can not be achieved targeted grinding, cause some mineral overground, to sorting operation caused great difficulties. Blind pursuit of short process also contributed to this situation is an important factor. This is a misunderstanding, the direction of our research should be increased grinding segment, to the mineral particles narrow level, the grinding medium of choice more targeted to improve grinding efficiency by improving each piece of the overall grinding efficiency, so The consumption does not increase.

(3) grading operations to be further improved. Magnetite beneficiation plant in China is now the application of the grading equipment spiral classifier, hydrocyclone, high-frequency fine sieve. The spiral classifier most of the concentrator has been applied, because in recent years the price of iron concentrate market to improve the grade fare increases, prompting people to pay more attention to improve the grade of iron concentrate, spiral classifier classification efficiency is low, the reverse The shortcomings of the rich class people paid special attention, in some concentrator has been some other device instead, will eventually be eliminated.

Hydrocyclone is being applied to a large number of concentrator for grading equipment, but also there are some problems: First, because the hydrocyclone is the use of the gravitational field grading, which requires the gravitational field within the hydrocyclone is stable . Such minerals can be accurately graded, but we are now automatic control level is difficult to do so by the a stable gravitational field, the precise classification can not be achieved within the hydrocyclone; hydrocyclone is due to erroneous applications mineral particles is too wide, will inevitably cause small density of particles with large density of small particles mixed with the same can not be accurately graded. This limits the use and development of the hydrocyclone. The direction of future research should be placed on self-control, so that the gravitational field within the hydrocyclone remained stable. In order to make hydrocyclone give full play to its unique features, in order to achieve the purpose of accurate classification. In recent years, high-frequency fine sieve in magnetite beneficiation plant is a wide range of applications, has played a very important role to raise iron impurity reduction. Foreign high-frequency fine sieve structure is more reasonable, screening off the ass is relatively high but the cost is higher than domestic many, relatively small in mining applications. In recent years, domestic high-frequency fine sieve manufacturer made a lot of work, and achieved good results. Concentrator application of domestic equipment in recent years has also been a relatively good results, but the device itself that there are some problems in the application of its advantages did not play very well.

The sorting operation problems: After processing plant workers and the efforts of the manufacturers, domestic magnetite beneficiation equipment made some progress, but there is a great distance from the magnetite beneficiation equipment and technology. Barrel permanent magnetic separator as conventional magnetite beneficiation equipment has a long history, although the concentrator is used widely, but the product is relatively simple, it is only in a limited number of varieties limited options, it is difficult to do different minerals are targeted, and tube-type magnetic separator for to achieve monomer separation of mineral secretion effect is also ideal, but he kept body powerless.

In recent years, the study of magnetic more emphasis tank, the tank plays a very important role in the sorting, should not be ignored. Tube-type magnetic separator direction of future development should be targeted stronger, according to the different different pulp types of design of the magnetic system and the tank structure, highlight the relevance, weakening versatility. Magnetic agglomeration machine, magnetic separation column generated the increased capacity of the beneficiation process, minerals For fine particles of depleted with the living body.

 Please call for more information. Contact page.
 
refractories
 
Tel:(0086)25-86083888    Fax:(0086)25-85017936     Mobile:(0086)13951927581   Address:JIADONGCUN 120#,YOUFANGQIAO STREET,YUHUATAI DISTRICT,NANJING,CHINA . ZIP:210048 contact with:bluce.lee Email: sales@hb-mcc.com copyright@2010