Firstly, the heated nitrogen is filled in the drying tower. The dried liquid material is transported to the centrifugal nozzle through the infusion pump. The liquid material is atomized into fine droplets by the Wanxin atomizer rotating at high speed. The hot nitrogen performs sufficient heat exchange, the liquid part of the material is evaporated instantaneously, the powdery material formed by the solid part sinks to the bottom of the tower, and finally the dried powdery material is discharged from the bottom of the tower.
Among them, the evaporated organic solvent gas is subjected to dust removal treatment by the cyclone separator, bag dust collector and other devices under the action of the fan, and then the saturated organic solvent gas after dedusting is condensed into a liquid by the condenser. Condenser, in order to prevent the liquid from being carried out, a gas-liquid separator is added in the back. In the meantime, the inert gas used as the drying medium is continuously heated and used as the drying carrier to recirculate in the system. The explosion-proof closed-loop centrifugal spray drying system works in a closed environment. The drying medium is an inert gas such as nitrogen. The drying tower The internal operation is positive pressure. If the internal pressure drops, the pressure transmitter can automatically control the amount of nitrogen entering to ensure the system pressure balance.
Because nitrogen is used as the circulating carrier, it has a protective effect on the dried materials. The circulating carrier such as nitrogen plays the role of carrying moisture, dehumidifying and circulating transmission, and its carrier medium can be reused. However, the conventional ordinary centrifugal spray drying is to achieve the purpose of humidification through continuous air supply and exhaust, and its tower is controlled to operate under negative pressure, which is also the explosion-proof closed centrifugal spray drying system and the ordinary centrifugal spray drying system. The obvious difference. Therefore, the explosion-proof closed-loop centrifugal spray drying system is particularly suitable for drying organic solvent materials, toxic gas materials, and materials that are susceptible to oxidation during the drying process.
2. Main features and uses:
The closed loop centrifugal spray dryer is suitable for the drying of materials that need to recover the solvent from organic solvents, volatile toxic and harmful gases, easy oxidation and light, etc. from solutions, emulsion suspensions and pastes. It not only inherits In addition to all the advantages of the centrifugal spray dryer, and the system does not have any powdery diarrhea during the drying operation, the yield of the finished product is almost 100%. The solvent recovered through the recovery system can be recycled through secondary treatment, thereby greatly reducing production costs. Favored by the majority of users. It is widely used in the drying operations of pharmaceutical, chemical, food and other industries. Its main features are as follows:
1. The front design of the equipment is designed to be explosion-proof. The main body and key parts of the equipment are equipped with venting discs. So as to ensure the safety of equipment operation. (There is no explosion relief device for systems with volatile poisonous and harmful gases.)
2. The system is equipped with a condensate system and a recovery system for the solvent of the drying material liquid, so that the solvent in the drying material liquid can be recycled through secondary treatment, thereby greatly reducing the production cost.
3. The equipment is fully enclosed design, so the yield of dried products is very high during drying, which is not achieved by other types of dryers. The product yield of this device is almost 100%.
4. There are cleaning towers in the system equipment and the use of advanced atomization cleaning device greatly improves the reliability of the system.
5. The closed-loop centrifugal spray dryer can use inert gas as the drying carrier for drying easily oxidized materials to ensure that the materials will not be oxidized during the drying process.
3. Technical characteristics of our company:
In this respect, our company is declared a rich car and is a leader in such equipment in China. It has fully absorbed foreign experience and participated in the design and transformation of the localization of equipment for many large chemical companies in China.
Due to our company's rich experience, based on years of experience and technological innovation, its products are not only sold to large domestic chemical companies, but also exported to some foreign countries.
4. Ordering instructions:
Liquid material name, physical properties: solid content (or solid content), viscosity, surface tension, PH value.
Powder capacity after drying, allowable residual water content, particle size, and allowable maximum temperature.
Output: Opening hours every day.
Supplyable energy: the supply of steam pressure, electricity capacity, supply of coal, oil, gas.
Control requirements: whether the inlet and outlet temperatures need to be controlled automatically.
Receiving requirements: whether to install bag catcher.
