Nanjing Sky Hope Tongyuan Biological Engineering Co., Ltd.

Nanjing Sky Hope Tongyuan Biological Engineering Co., Ltd. It is a comprehensive Chemical and mechanical engineering company.

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Closed loop spray dryer

Closed loop spray dryer

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Brand Name :tongyuan
Place of Origin :China
MOQ :1set
Price :USD10000
Payment Terms :L/C, D/A, D/P, T/T
Supply Ability :10set
Delivery Time :20 days
Packaging Details :case
product name :Closed loop spray dryer
From :China
material :304 or 316
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Closed loop spray dryer

Brief introduction:First, the drying tower is filled with heated nitrogen. The dried liquid material is transported to the centrifugal nozzle by the infusion pump. The liquid material is atomized into fine droplets by the centrifugal atomizer rotating at high speed, and the droplets are in the drying tower After sufficient heat exchange with hot nitrogen, the liquid part of the material is instantaneously evaporated, 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.
Closed loop spray dryer

1. Working principle

Firstly, the heated nitrogen is filled in the drying tower. The dried liquid material is transported to the centrifugal nozzle by the infusion pump. The liquid material is atomized into fine droplets by the centrifugal atomizer rotating at high speed. Nitrogen is fully heat-exchanged, the liquid part of the material is instantaneously evaporated, 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 a 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 behind. In the meantime, the inert gas as the drying medium is continuously heated and reused as a dry carrier 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 is operated under positive pressure. If the internal pressure drops, the pressure transmitter can automatically control the entry of nitrogen. Volume to ensure 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 the tower is controlled to operate under negative pressure. This 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-cycle centrifugal spray drying system is particularly suitable for drying organic solvent materials, toxic gas materials, and materials that are prone 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.
3. Its main features are as follows:
The system process design of the equipment is 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.)
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.
The equipment is fully enclosed design, so the yield of dried products is very high when drying, which is not achieved by other types of dryers.
The system equipment has a cleaning tower and adopts an advanced atomizing cleaning device to greatly improve the operating reliability of the system.
The closed-circuit centrifugal spray dryer can use inert gas as the drying carrier for drying materials that are easy to be oxidized to ensure that the materials are not oxidized when being dried.
4. Technical characteristics of our company:
Our company has rich experience in this field, is the leader of such equipment in China, and fully absorbs foreign experience, and participated in the design and transformation of the localization of many large chemical companies in China.
Due to our company's long-term experience, based on years of experience and technological innovation, it has applied for a patent, and its products are sold to large domestic chemical companies, and also exported to Portugal and Mexico.
5. Instructions for ordering:
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.
Production, daily opening hours.
Supplyable energy: steam pressure supply capacity, electricity capacity, coal, oil and gas supply.
Control requirements: whether the inlet and outlet temperatures need to be controlled automatically.
Receiving requirements: whether to install bag catcher.
This device replaces the normal air environment with an inert gas environment formed by using circulating nitrogen to perform spray drying. In addition to recycling products, solvent recovery is also possible.   
Features
1. Prevent product oxidation and improve product quality.
2. It is easy to realize dust-free and aseptic operation.
3. It can recover the solvent in the feed liquid.
4. Improve the preservation of aromatic ingredients.
5. It can dry combustible liquid or cool granulation.
6. It can dry materials with strong heat sensitivity.
7. Can achieve low pollution and no pollution.
8. The deodorizing device can be omitted.
9. Can achieve low temperature drying below 100 degrees Celsius. Applicable Products
1. Non-oxide ceramics (AeN, Si3N4, etc.), cemented carbide, high-performance battery materials, etc.
2. Seasonings, health products.
3. Pharmaceutical products, vitamins, organic medicines.
4. Synthetic resin and paraffin.
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Closed loop spray dryer

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