SiC drying production line

Application Client：

Project Classification：Chemical engineering industry    

Dryer Type：XZG Series Spin Flash Dryer

Project Description：Silicon carbide (SiC) is using quartz sand, petroleum coke (or coal), wood chips as raw material through high temperature resistance furnace smelting. In the modern C, N, B, and other non oxide high - tech refractory raw materials, silicon carbide is the most widely used and the most economical one.

Engineering Summary

Silicon carbide (SiC) is using quartz sand, petroleum coke (or coal), wood chips as raw material through high temperature resistance furnace smelting. Silicon carbide also exist rare mineral in nature, Mo sangshi. Silicon carbide is also known as Moissanite. In the modern C, N, B, and other non oxide high - tech refractory raw materials, silicon carbide is the most widely used and the most economical one. It also can be called steel sand or refractory sand. At present, there are two kinds of silicon carbide in our country industrial production: black silicon carbide and green silicon carbide. All of them are six square crystal, the specific gravity is 3.20 ~ 3.25, the micro hardness is 2840 ~ 3320kg/mm².

Description

XZG Series Spin Flash Dryer is continuous drying equipment specially designed for shaped cake, cream paste, and paste slurry materials. The clean heat medium goes into the drying room from the tangent direction and creates a strong rotary vortex air current when it’s in motion with the stirrer. The wet material is added to the drying room in a fixed quantity, and it will be crushed and dry under high speed stirring action. The top of the drying room has particle size classification, the big particles will be stopped by the classifier and the fine powder will be discharged from the center of the ring and collected by the cyclone separator. The big particles will return to the drying room and continue to be crushed and dry.

Working Principle

The hot air enters into the bottom of the drier in tangent direction. Under the driving of the stirrer, a powerful rotating wind field is formed. The paste state materials enter into the drier through the screw feeder. Under the powerful function of the stirring vanes at high-speed rotation, the materials are distributed under the function of strike, friction and shearing force. The cake state materials will be smashed and contact the hot air fully and the materials are heated and dried. The dehydrated materials will go up with the hot-air flow. The step rings will stop and keep the big particles. Small particles will be discharged out of the drier from the center of the machine and the material will be collected by cyclone separator of dust collector. The wet or big particles will be swing towards to the wall by the centrifugal force function and the materials will be crushed again after fall down to the bottom.

Engineering Advantages

1. strong professional; high processing capacity; fast drying rate; the surface area significantly increased after atomization of material liquid; under the vacuum condition, the drying time is reduced greatly.

2. equipment structure is simple, no easy wearing parts, low maintenance cost.

3. the operation is simple and stable, easy to control, can achieve intelligent operation.

4. use the different boiling temperatures to achieve liquid-liquid separation.

5. using special non-standard design of atomizer, atomization and separation effect is good.

6. integrating chemical reaction and drying, a one-time complete reaction and drying, optimize the equipment performance.

Schematic Structure

鼓风机  Air Blower,    蒸汽加热器  Steam Heater,    电加热器  Electrical Heater,

闪蒸干燥机  Flash Dryer,  螺旋加料器  Screw Feeder,   旋风分离器  Cyclone Separator,

布袋除尘器  Dust Collector,   引风机  Draft Fan