Calcium carbonica XSG Flash Drying Machine (Spin Flash dryers ) (Rotating flash Dryer)( Flash cooler )

Characters of the rotary dryer:

1. Drying, grinding, and sieve are completed in one equipment in once time.
2. feeding is continue and static
3. at the bottom of drier, there is cooling device, avoiding materials changing the decomposition at high temperature
4. don’t stick wall, the moisture and fineness of material is adjustable
5. there is special equipment for sharing wind, and reducing resistance of equipment, and raising the amount of hot air of dryer

Principle of the rotary dryer:

Hot air enters into stirring and crushing and drying chamber from the bottom of dryer with suitable atomizing speed. It exerts strong shearing blowing, floating and rotating effect to raw material. Therefore raw material is granulated through centrifuge, shearing, impacting and friction effect. It strengthens the process of great exchange.
 

Application materials of the rotary dryer:

1. Stearate: zinc stearate, calcium stearate, barium stearate and so on.
2. pesticide industry: fenatrol, mancozeb, and so on.
3. kaoline, white carbon black, aluminum hydroxide, and any other chemical materials.

Sketch of structureof the rotary flash dryer:

Feed system

The feed system consists of a feed vat where a discontinuous flow of product is buffered and fragmented by an agitator prior to continuous drying. A variable speed feed screw (or pump in the case of fluid feed) forwards the product to the drying chamber.

Drying chamber

The rotor at the conical base of the drying chamber fluidizes product particles in a drying-efficient hot air flow pattern in which any wet lumps are rapidly disintegrated. Hot air is supplied by a temperature-controlled air heater and speed-controlled fan, entering the drying chamber at a tangent in order to establish a turbulent, whirling air flow.

Airborne, fine particles pass through a classifier at the top of the drying chamber, while larger particles remain in the air flow for further drying and powdering.

The drying chamber is rigidly designed to withstand pressure shock in the event of explosive combustion of flammable particles. All bearings are effectively protected against dust and heat.

Bag filter

Powder from the drying chamber is collected in bag filter, while the outlet airleaves the system at the top via a suction fan.

Pneumatic coolers are a simple and reliable method of cooling and conveying dried product. In many instances ambient air will achieve the desired cooling duty. Where required, greater cooling capacity and a finer degree of control can be achieved with conditioned air at a controlled humidity and temperature.

Feature :

1. This machine combines the whirl technology with the fluidity, ejection and smashing step technologies.

2. The equipment is compact and small in size, high in production efficiency and continuous in the production. It has realized that " small equipment can perform the large production".

3. The drying capacity for this machine is big but its energy consumption is low. Its heat efficiency is high.

4. The material stay time is very short. The quality of the final products is very good. The machine can be used for drying the heat sensitive materials.

5. For the negative pressure or the micro-negative pressure operation, the machine is good for its tightness and high in the efficiency so as to eliminate the environmental pollution.

6. High drying efficiency providing low energy costs

7. Continuous processing with short processing time

8. Low operator overheads and minimum maintenance costs

9. Controlled residence time enabling high temperature drying

10. Available in cGMP compliant configurations