Pressurized blade dryer

Abstract

The invention provides a pressurized blade dryer. The dryer mainly comprises a blade device, a cylinder with a sleeve, a drive device and a heat source, wherein the cylinder is provided with a charging hole and a discharging hole, and the dryer is characterized in that the charging hole is provided with a steam inlet; the section of the cylinder is circle and the outside of the cylinder is covered with the circular sleeve, and the two ends of the cylinder are semicircular shells. The dryer of the invention changes the unidirectional conduction type indirect heat transfer working condition of the common blade dryer, and the pressurized steam is introduced when the material is placed in the dryer so as to realize the pressurized working condition by mixing the material with the pressurized steam in the dryer. The whole device has both effects of direct heat transfer and indirect heat transfer so as to greatly increase the efficiency of heat transfer and have ideal effect of ensuring the product yield and the quality. Meanwhile, the dryer adopts the design of circular section and semicircular shells so as to ensure that the device can run safely and steadily; in addition, the structure of the dryer is simple, the dryer is easy to design and manufacture, the investments of equipment and energy can be saved, and the production cost is reduced.

Description

technical field [0001] The invention relates to a drying device, in particular to a pressurized paddle dryer. Background technique [0002] Paddle dryer is a new type of horizontal low-speed mixing conductive drying equipment. At present, there are more than ten enterprises in my country producing and developing this equipment. It is mostly used in the chemical and food industries such as caustic soda flakes, soda ash, Glauber’s salt, table salt and other production processes. dry. [0003] The paddle dryer has the characteristics of compact device, small footprint, large heat transfer area, high thermal efficiency, good sealing, clean cleaning, less material residue, simple operation and maintenance, etc., making it quickly used in various industries. [0004] However, the existing paddle dryers are all indirect conduction drying, and the wet material only absorbs heat through the jacket and paddles, so the drying capacity is limited. At the same time, the inside of the dr...

AI Technical Summary

Problems solved by technology

[0004] However, the existing paddle dryers are all indirect conduction drying, the wet material only absorbs heat through the jacket and paddles, and the drying capacity is limited

At the same time, the inside of the dryer is under normal pressure, which restricts the drying effect of the equipment.

When the output and humidity of dry materials increase, it is bound to increase the requirements for equipment dimensions and jacket wall thickness, thereby increasing production costs

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