Caustic Calcined Magnesite -Purification Prevention, Advantages
Method for purifying light burnt magnesium balls
First, the flotation method is one of the main purification methods for the treatment of light burnt magnesium balls. For gangue minerals such as talc, quartz and other silicate minerals, flotation is usually carried out under the natural ph of the pulp. Cationic collectors and foaming agents can achieve good results, increasing the purity of light burnt magnesium balls to 95%-97%.
Second, the thermal selection method: the difference in thermal properties between magnesite and talc, after the calcination, the density difference and hardness difference between the two, and then the selective separation and simple screening or classification to separate the minerals .
Third, light burn: magnesite calcined at 750-1100 ° C temperature is called light burn; its product is called light burned magnesium powder. Since the reduction of magnesite is generally about 50%, the mgo content in the ore can be almost doubled by light burning. In this sense, light burning is the most effective means of enrichment. In addition, light burning is also a preliminary job for hot selection of magnesite and some re-election. Light burnt magnesium has high activity and is an ideal raw material for the production of high-density magnesia.
Advantages of light burnt magnesium balls
1, high working temperature
Since the melting point temperature of the insulating layer magnesia crystal is much higher than the melting point temperature of copper, the maximum temperature for long-term normal operation of the cable can reach 250 ° C, and the normal operation can be continued in the short term at a temperature close to the melting point of copper of 1083 ° C.
2, complete fire prevention
The light burnt magnesium ball itself does not burn at all. It can be operated continuously for a long time at 250 °C. It can also maintain normal operation for 30 minutes under the limit state of 1000 °C, and it will not cause fire. Even in the case of a flame grill, as long as the flame temperature is lower than the melting point of copper, the cable can be used without further replacement after the flame is removed. In the case of a flaming barbecue, no toxic fumes and gases are produced.
3, strong overload protection
When the line is overloaded, the cable will not be damaged as long as the heat does not reach the melting point of copper. Even if the breakdown is instantaneous, the magnesium oxide crystal at the breakdown will not form carbides. After the overload is removed, the cable performance will not change and the normal use will continue.
4, anti-corrosion, explosion-proof performance is good
Due to the use of a seamless copper tube as a sheath, the light burnt magnesium ball has the performance of waterproofing, moisture, oil and some chemical substances. The copper tube has considerable mechanical strength and thus has good explosion-proof performance.
5, long service life
The magnesium oxide cable is entirely composed of inorganic materials, so there is no insulation aging, and the service life can reach more than three times that of ordinary cables.
6, laying flexibility is greater
The magnesia cable can be laid on the bridge with ordinary cables, and it can also be applied with special brackets, which is more flexible than ordinary cable laying, and also saves the investment of cable trays, which can reduce the overall cost of the project.
4. Method for improving the production process of light burnt magnesium balls
FENGCHENG CITY HEQI BRUCITE MINING CO., LTD is registered in Dandong city, Liaoning province. Sufficient talent reserves, proper environmental governance, convenient transportation and communication.We are mainly engaged in the purchase, processing and sales of mineral products.
Main products: magnesium hydroxide flame retardant and brucite powder. Complete specifications of products, welcome to visit our factory guidance.
Since its inception, with "business integrity, standard services, sustainable development, commitment to the community" is the principle of the company. Our company has a good reputation, which is oriented by customers' demands, strives for survival by quality reputation, relying on high-quality products and good services.
