Hollow spiral particle vacuum dryer

Product Overview

Hollow spiral particle vacuum dryerIt is a drying equipment suitable for granular materials in chemical, pharmaceutical, food, pesticide and other industries. Its unique structure and working principle determine that it has the characteristics of high thermal efficiency, low energy consumption, small footprint, simple configuration, convenient operation and control, and good operating environment. It is widely used in drying operations in industries such as chemical, pharmaceutical, pesticide, food, and feed, and has been highly praised in practical use in various industries. We currently produce four types of products: atmospheric pressure batch, atmospheric pressure continuous, vacuum batch, and vacuum continuous. The materials used are A (carbon steel for outer packaging, stainless steel for contact material parts) and B (stainless steel for steam pipelines, outer packaging, and brackets added to A), and we can provide various auxiliary equipment to meet the drying needs of users for various materials.

working principle

Hollow spiral particle vacuum dryerBy using a specially designed hollow spiral inside the device, the flow state of materials and their residence time inside the device can be controlled. The main components of the equipment include: spindle (hollow), spiral blades (hollow), wall surface (semi tubular), etc; The shell is W-shaped, and two hollow spiral shafts are generally arranged inside the shell; The shell has sealed end caps and upper caps to prevent material dust leakage and fully exert its function. According to the temperature requirements of the material, different media can be selected for heating, such as hot water, steam, and thermal oil. The heat transfer medium flows through the shell jacket and hollow spiral shaft through the rotary joint. The characteristics of heat transfer, cooling, and stirring of the equipment enable it to perform the following unit operations: drying (solvent recovery), heating (melting), cooling, and mixing. The material input can be fed continuously or in batches through a dedicated feeding device, and the residence time of the material can be controlled by operating the speed of the screw to achieve the final drying goal.

Product Features  

1. Energy saving: Due to indirect conduction, most of the energy is absorbed by the material;

2. Environmental Protection: No use of portable air, minimal dust material carryover, all emissions are solvents, which can be recovered through heat exchangers; For materials that are contaminated or require solvent recovery, closed-loop circulation can be used to achievezero emission；

3. Good heat transfer effect, uniform temperature, and high production capacity;

4. Due to uniform temperature, it can avoid local overheating and is suitable for drying thermosensitive materials;

5. Flexible equipment operation, capable of both continuous and intermittent operations;

6. Flexible drying time can maintain stable moisture content of the product;

7. Low equipment cost, safe and convenient operation and maintenance.

Scope of Application

Drying operations for pharmaceuticals, chemical raw materials, food, and food processing beverages, such as drying and dehumidification of raw materials, tablet granules, traditional Chinese medicine granules, food and beverage granules, corn germ, feed, plastic resins, citric acid, and other powdered and granular materials. The applicable material particle size is generally 0.1-0.6mm, 0.5-3mm

Technical Specifications

Note: Some parameter designs may be adjusted based on different materials, and parameter changes are not notified in advance.