White carbon black drying project

White carbon black material introduction
White carbon black is the general term for white powdery X-ray amorphous silicic acid and silicate products. It mainly refers to precipitated silica, fumed silica, ultrafine silica gel and aerogel, and also includes powder Synthesis of aluminum silicate and calcium silicate, etc. Silica is a porous substance, and its composition can be represented by SiO2·nH2O, where nH2O exists in the form of surface hydroxyl groups. It is soluble in caustic alkali and hydrofluoric acid, but insoluble in water, solvents and acids (except hydrofluoric acid). High temperature resistant, non-combustible, tasteless, odorless, and has good electrical insulation.

working principle
The hot air enters the mixing, crushing and drying chamber from the bottom of the dryer at a suitable spouting speed from the inlet pipe, which produces strong shearing, floating, and rotating effects on the material, so the material is centrifuged, sheared, collided, and rubbed to be atomized. , Strengthen the mass and heat transfer. At the bottom of the dryer, the larger and wetter particle clusters are mechanically broken under the action of the agitator, and the particles with lower moisture content and smaller particle size are entrained by the rotating airflow to rise, and are further dried during the ascent. Because the gas-solid two phases make rotating flow. The inertia of the solid phase is greater than that of the gas phase, and the relative velocity between the solid and gas phases is larger, which enhances the mass and heat transfer between the two phases. So the machine has high production intensity.