Since alumina powder can be used as a raw material for brown fused alumina, alumina powder must be stronger than other materials, and its effect on white corundum is also very large. Therefore, we will start with the effect of alumina powder on white corundum. We all know that white corundum is white, and the white appearance of white corundum is formed by the role of alumina powder, because alumina powder is white, so as a raw material of white corundum, of course, it also brings white corundum. White appearance.
The smoke removal method of the corundum electric furnace mainly adopts a smoke exhaust hood method. That is, a large smoke exhaust hood is arranged above the furnace body, and the smoke exhaust hood is mainly composed of a furnace cover, a chimney, a furnace cover and the like. The upper cover of the furnace is a double-layer structure welded with 6-8mm steel plates. The brown aluminum oxide middle sandwich can pass cooling water and is provided with air vents to prevent the explosion accident caused by the superheated steam expansion. The side wall of the furnace cover is welded by steel plates and lined with refractory bricks.
The key to the quality of brown corundum lies in the quality of the original mineral of brown corundum. Generally, the good primary minerals are mainly small spherical particles, the size is very small, the impact resistance is large, and the surface looks bright and shiny. Therefore, when we buy brown corundum, we can preliminary judge the quality of the brown corundum we buy from the characteristics of shape, color, and size.The current situation of the white corundum market can be estimated in the future. Many small businesses have white corundum dumpers with transformer power below 4200 kVA, and white corundum dump furnaces with transformer power below 3200 kVA.
Reform, without transformation, will face investigation and punishment by the environmental protection department, and even stop production. Nowadays, many white corundum production enterprises in some areas have disabled white corundum dumpers with transformer power below 4200 kVA and transformer power below 3200. The kilovolt-ampere brown fused alumina price dumping furnace has been transformed from a one-stop production and processing enterprise to a main processing enterprise, while a high-power white corundum production enterprise has become a professional production enterprise not doing processing, which has made the white corundum industry further.
Centralization and scale. Brown corundum abrasive can be divided into three levels and five steps according to the level of alumina content. Primary white alumina and secondary brown corundum are the most commonly used abrasive products in industry. The classification of brown corundum mainly includes: first-grade brown corundum, second-grade brown corundum, second-grade brown corundum, second-grade brown corundum, and third-grade brown corundum, and the brown alumina content of each step is about 5% about. The appearance and application of different grades of brown corundum abrasives are also very different due to the differences in their chemical composition.
In the production, two shaping processes are combined with each other, and the shaped black aluminum oxide powder is mixed in a certain proportion, which not only ensures the product's tap density, but also guarantees a high yield, and can obtain better economic benefits. The structure of the roller crusher determines that its crushing ratio cannot be very large. When crushing corundum, it is generally 3 to 4. A pairing machine for corundum crushing. The diameter of the stick should be 1-2 times larger than the length. In order to ensure the strength of the equipment And rigid.
The refractory is melted or melted only by high temperature heat load in use. When it reacts with molten slag to form a fusible substance, this fluxing effect, on the one hand, causes the crystalline phase structure of the refractory material to be destroyed, and the high temperature strength is severely damaged, which accelerates the melting process; Migration causes the pink aluminum oxide material to shrink, causing cracking of the material and the masonry, accelerating slag erosion and destroying the stability of the masonry.