Products Center

It is made from fused magnesite, high carbide graphite as raw material, adding anti-oxidant as binder, forming under high pressure. It has good corrosion resistance and thermal shock stability, widely used converter .

It's made from magnesite as raw material, adding modified pitch, flowability agent, sintering agent and additives. It has good spread-out under high temperature, is rapid sintered and mainly used in converter.

Throw –hand mix Specification: MgO ≥ 83%l C ≥ 6%; Bulk density ≥ 2.08 g/cm3

The coating magnesia granules produced by our company adopt special technology process to coat ball-shaped magnesia granules with the inorganic metallic chloride salt, which can be directly sued with single tuyere blowing and single tuyere combined blowing special equipment. The granules are uniform, having advantages, including good fluidity, high desulphurization rate, well desulphurization result, low unit consumption, small consumption and low comprehensive cost, lower hot metal temperature, less slag in the hot metal, easy control, safety and reliability, even delivery while blowing, no pulse phenomenon, no stick to tuyere, no jam to tuyere, convenient operation, and therefore, it is the perfect high-tech product for hot metal desulphurization.

Desulphurization of hot metal by powder injection is to blow the desulphurization powder into the hot metal through the desulphurization tuyere by the inert gases as carrier, and then the desulphurization powder reacts with the sulfur inside the hot metal to accomplish the purpose of desulphurization.
Desulphurization of hot metal by powder injection is a non-continuous periodic process, the tuyere works under the high temperature of 1400℃ in hot metal and under the atmospheric condition. The frequent thermal shock often makes the desulphurization tuyere body crack, and even penetration or rupture occurs to the tuyere, which greatly reduce the service life of the desulphurization tuyere.
All damages to tuyere are started from the refractory castable cover, and the most frequent damage performs longitudinal cracks and perforation as well as rupture of tuyere’s refractory castable cover, therefore, our company has researched and developed a high-performance castable refractory to be used for the tuyere cover, which may efficiently slow down the damage process of tuyere so as to achieve the purpose of prolonging the tuyere’s service life.
In addition, the anti-thermal stress and destructiveness of tuyere often relate to performance of the refractory materials. However, the perfect matching configuration can also result in greater function. In order to achieve better integrated anti-thermal stress of the tuyere, our company has studied the influence on tuyere internal geometric configuration and successfully developed the tuyere by improving the geometric format arrangement of the steel pipes structure and supporting the steel structure, and greatly enhanced it’s service life.