Refractory performance requirements of blast furnace trough

what are the requirements of blast furnace trough refractories performance? According to introducing, blast furnace trough is leads to high temperature molten iron or slag channel. In the production process to the following destructive effect subjected to several factors:
(1) The refractory material withstands high temperature molten iron and slag flow intense erosion.
(2) The chemical erosion of blast furnace slag.
(3) The destruction of action of thermal shock and intense intermittent iron.
Therefore, the requirements of trough lining refractory material should have the following characteristics:
(1) Trough lining stronger anti high temperature molten iron and slag corrosion and erosion ability of refractory materials.
(2) With anti high temperature performance and excellent wear resistance.
(3) The chemical erosion of stronger anti high temperature slag.
(4) Better thermal shock resistance, small changes in heavy firing.
(5) Against various oxidative ability stronger.
(6) Easy construction, convenient for disassembly and repair, does not produce harmful gases, is conducive to the Protect environment.
Xinmi Changxing refractory exporters introducing the construction method, in addition to the use of blast furnace spray paint, blast furnace ramming material, by using the method of vibration molding or casting molding trough. When using these two methods can not dismantle the trough residues lining, making full use of original trench lining, thereby reducing the consumption of refractory material, at the same time, to improve the working conditions of construction. That can prolong the service life of iron trough.

Application of mullite materials in rotary kiln

       Mullite aluminum silicate formation at high temperature minerals, the magnetization roasting rotary kiln lower process temperature, process characteristics of resistance, corrosion resistance, thermal shock resistance, mullite SiC composite prefabricated brick with mullite materials and silicon carbide material composition and mullite SiC castable method of composite masonry, at the same time refractory materials at high temperature with different proportions, to improve the thermal stability of refractory materials, delaying the ring material erosion of refractories and destructive effect, slow ring phenomenon, obtains a good application effect.

      Masonry of refractory materials has also been a corresponding improvement. The composite precast slabs by anchor is welded and fixed on the kiln body, between two rows of brick layer with light castable and wear resistant pouring material filling, ensure the integrity, stability and thermal insulation refractory. In building process, in order to prevent the kiln rotary kiln in emphasis, built after four rows of prefabricated brick, turn to the top and then laying four lines. After the completion, in turn rotary masonry.

    Through the above method, to ease the interaction of refractory materials and materials, delaying ring phenomenon. And the use of masonry composite prefabricated brick and abrasion resistant castable refractory material to strengthen the strength, processing node ring for refractory material damage, repair cycle is short. Through the practice, refractory maintenance cycle from 2 to March was extended to 1 year, improve the rotary kiln operating rate, with significant economic benefits.

Submerged Entry Nozzle,Sub Nozzle,Nozzle Refractory,Refractory Nozzle,Refractory Product,Changxing Refractory

Submerged Entry Nozzle

Yilong SEN are isostatically pressed from alumina-graphite with zirconia inserts and magnesia seats as required. Argon channels are available too. These pieces are 100% X-ray tested for flaws and cracks prior to shipment. These SENs are engineered to provide maximum life at minimal cost.
 

Refractory castable flowability

        We know that there is refractoriness refractory castable, but what is its fluidity is it? This point will we do not know, because a lot of people for refractorycastable fluidity is not particularly understand, so today let technicians Changxing new secret to tell you: the flow of knowledge refractory castable degree.

We all know that is not the same refractory castable construction, but only that they have the same fluidity, but there will be different refractory castable performance problems at the same fluidity of the situation, and these are associated with castable construction method, temperature and material used so inseparable bond, so it proved castable has a certain fluidity. But how do we find the fluidity of refractory castable and its determination it? Then we need to use the fluidity of the measurement equipment, and is a 760mm diameter table of jump. The trial of a high 127mm, catchy diameter 171mm, 254mm outlet diameter truncated cones placed in the center jump table, mixing the two layers tamping castable placed the barrel, then remove the cone to a beat rate of 15 times per second, so that the desktop castable expansion amount of the expanded diameter D (mm). The formula to calculate the degree of liquidity is: F1: F1 = (D-254) / 254 * 100%. After these processes is measured out refractory castable degree of liquidity.

Comprehensive above described, the fluidity of refractory castable what knowledge you have some understanding of it, if you want to consult more knowledge about refractory castable can consult us.