White carbon black drying project
Introduction of white carbon black materials
Silica is a general term for white powdered 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. Silica is a porous substance whose composition can be represented by SiO2·nH2O, wherein nH2O exists in the form of a surface hydroxyl group. Soluble in caustic and hydrofluoric acid, insoluble in water, solvents and acids (except hydrofluoric acid). High temperature resistance, non-combustible, odorless, odorless, and has good electrical insulation.
working principle
The hot air enters the agitating and pulverizing drying chamber from the bottom of the dryer at a suitable spraying speed by the inlet pipe, and the material is strongly sheared, blown and rotated, so that the material is micronized by centrifugation, shearing, collision and friction. , enhanced mass transfer heat transfer. At the bottom of the dryer, the larger and drier pellets are mechanically broken by the action of the agitator. The particles with lower moisture content and smaller particle size are entrained by the swirling gas stream and further dried during the ascending process. Due to the gas-solid two phases for the rotating flow. The solid phase inertia is larger than the gas phase, and the relative velocity between the solid and gas phases is larger, which enhances the mass transfer heat transfer between the two phases. Therefore, the machine has high production intensity.
