Paddle dryer overview:

Paddle dryer is a kind of heat conduction of horizontal stirring type dryer. Because of mixing blade shape solid person paddle, paddle dryer, abroad also known as trough drier or stirring dryer. Paddle dryer abroad has developed over the years, the current models in Japan Nara machinery manufacture as representative, has now developed a double and four axis structure of two, more than 10 specifications of the series of products.

Paddle dryer is a double ( or the four shaft horizontal mixing drying device ). The earliest by former Federal Germany successfully developed, after Japan to introduce the technology, and the improvement, development of biaxial axis and a four two structure, more than 10 kinds of specifications of the products. The equipment required for drying heat by the heat conduction indirect heating, so the drying process does not need or need only a few to take a wet gas. This has greatly reduced by gas take this part of heat loss, improve the utilization rate of the heat, is a kind of energy saving type dryer. It is suitable for granular and powder drying of paste materials, may also be dried.

Equipment structure:

Biaxial paddle dryer consists of a jacketed end in W shell, cover, two blades at the two ends of the hollow shaft, end cover, a heat medium of rotary joints, metal hose and includes a gear, sprocket drive mechanism and other components.

This equipment is the core of two hollow shaft and is welded on the shaft of the hollow stirring blade. Blade shape is wedge-shaped hollow semicircular, can pass the heating medium. Apart from the mixing effect, but also equipment heat conductor, the two blade main heat transfer surface into a slope, therefore when the material and surface contact, along with the rotation of the blade, the particles quickly from the slope slide open, so that the heat transfer surface of constantly updated, enhancement of heat transfer. The blade is arranged at the bottom of the triangular scraper, to be deposited on the bottom of the shell material sweep, prevent the generation of dead. Blade arrangement and size of each part has the certain request, but also in the feed zone, a drying zone, a discharging zone in addition to blade, and another with the auxiliary mechanism, to ensure the stable operation, uniform drying. In addition, the residence time can be adjusted. Non

The heating medium can use steam, oil or water can also be used, but the heat carrier phase, wherein the hollow shaft structure is also different. When heated by steam, hot axle has simple structure; when in use of hot water heating, shaft structure is more complex, especially when the need to consider the fluid velocity, is even more so. Non