Preparation method of spray drying equipment

Abstract

The invention belongs to the technical field of drying equipment, and relates to a preparation method of spray drying equipment. A dispersed cone body is formed by a dispersed cone body straight pipe section and a dispersed cone body diffuser section in a connecting manner; a spray pipe structure is formed by a spray pipe contraction part and a spray pipe throat in a butt joint manner; a feeding pipe side wall circular hole is formed between a feeding pipe and an atomizing chamber; a spray pipe structure between a steam chamber and the atomizing chamber is an annular crack structure; the diameter of the feeding pipe side wall circular hole between the feeding pipe and the atomizing chamber is 2-5mm; the distance between the spray pipe throat in the atomizing chamber and the feeding pipe side wall circular hole is 5-30mm; the taper of a wall, protruding in an impacting cone, of the atomizing chamber is 50-120 degrees; the included angle between contracting wall surfaces of the impacting cone is 30-65 degrees; and the diffuser angle of a diffuser section of the dispersed cone body is 10-30 degrees. The drying equipment is simple in structure and reliable in principle; the atomizing condition is easy to control, steps of an atomizing technology is few, and the atomizing effect is good; and the drying equipment is high in producing efficiency, low in cost and wide in application range.

Description

[0001] Technical field: [0002] The invention belongs to the technical field of mechanical equipment, and relates to a spray-type atomization drying device for spraying and drying a resin solution with steam, in particular to a preparation method of a spray drying equipment. Background technique [0003] Spray drying equipment was invented by LaMont and Percy at the end of the 19th century. Material drying with spray drying equipment is one of the modern drying technologies. Spray drying is to disperse the solid-liquid mixed slurry material into very fine mist droplets (to increase the water evaporation area and accelerate the drying process) through mechanical action. After the droplets contact with hot air, sufficient heat transfer is carried out. Mass transfer is the process of removing most of the water in an instant and drying the solid matter in the material into powder. The use of spray drying technology can greatly simplify a series of complex production processes su...

AI Technical Summary

Problems solved by technology

Although the above two patents can solve the atomization problem, the atomization angle is relatively large, and a relatively large atomization tower needs to be connected to the rear to pass in steam for drying. The volume is too large and the capacity utilization efficiency is not high, so A more efficient method is needed, and at the same time, it is necessary to avoid sticking together materials that have not been dried after atomization

To sum up, the existing atomization drying equipment generally has disadvantages such as complex structure, poor process control conditions, unsatisfactory atomization effect, high production cost, low automation level, and small application range.

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