Bauxite rotary kiln calcination equipment

Bauxite rotary kiln refers to the gas, oil as a heat source, the hot air into the kiln, the bauxite into the kiln for calcination. Aluminous soil (bauxite), also known as bauxite or bauxite, the main component is alumina, the department of impurities containing hydrated alumina, is a kind of soil minerals. White or gray, brown or light red due to iron. Density 3.45g / cm3, hardness 1 ~ 3, opaque, crisp. Extremely difficult to melt. Insoluble in water, soluble in sulfuric acid, sodium hydroxide solution. Mainly used for aluminum, the system refractories.
The bauxite referred to in the refractory industry usually refers to Al2O3> = 48% after calcination, and bauxite with lower Fe2O3. The bauxite clinker is calcined bauxite. Clinker is gray and light yellow and dark gray, it is mainly used for high alumina refractories, can also be used to make fused corundum. The bauxite clinker is graded according to the content of AL2O3 and the contents of Fe2O3, TiO2, CaO + MgO, K2O + Na2O and clinker bulk density and water absorption.
Light burning bauxite, also known as light burning powder, is the raw material of calcium chloride polymerization, is bauxite processed by the production of mineral materials, the main component is alumina, the department of impurities containing hydrated alumina, and is a kind of soil minerals. White or gray, brown or light red due to iron. Density of 3.9 ~ 4g / cm3, hardness of 1 to 3, opaque, crisp. extremely difficult to melt. Insoluble in water, soluble in sulfuric acid, sodium hydroxide solution.
Bauxite rotary kiln structure
The series of bauxite rotary kiln mainly by the rotary part, support part, transmission, kiln hood, kiln seal, burning device and other components.
Characteristics of Bauxite Rotary Kiln:
Kiln protection board and kiln back material are used block casting, easy installation, with high heat resistance and corrosion resistance, wear resistance, kiln cold air jacket through the cooling air, to the kiln cylinder and kiln. The mouthpiece is evenly cooled to make it safer and more reliable. Kiln hood with large volume way, off the kiln structure, making the air more stable.
Bauxite rotary kiln advantage
Kiln head, kiln seal using radial friction maze, fish scales double sealed form, simple structure, easy maintenance, is the most advanced form of domestic seal. The combustion device uses a swirl-type four-channel pulverized coal burner with a fuel injection ignition device.