Improved nicotinamide fusion spraying granulation tower and operation method thereof

Abstract

The invention provides an improved nicotinamide fusion spraying granulation tower and an operation method thereof. The improved nicotinamide fusion spraying granulation tower comprises a tower body, wherein the top of the tower body is provided with an exhaust pipe; the bottom of the tower body is provided with an air inlet pipe; an atomization spray head assembly is arranged in a liquid spraying region; the atomization spray head assembly comprises a plurality of ring pipes in sequential sheathing arrangement from small size to big size; spray nozzles are uniformly distributed in the bottom surface of each ring pipe; a rotating shaft assembly is arranged in the center of the plurality of ring pipes; the rotating shaft assembly comprises a center shaft; a plurality of rotating sleeves sequentially sleeve the outer periphery of the center shaft; the plurality of ring pipes and the plurality of rotating sleeves form one-to-one corresponding connection; a plurality of suspension plates are arranged in a suspension region from top to bottom; a plurality of sieving holes are uniformly formed in each suspension plate; a plurality of air blowing nozzles are uniformly arranged on the side wall of a partition region; an inclined air guide cap is arranged on a nozzle opening of each air blowing nozzle; a funnel-shaped material guide hopper is arranged in a wind power region; a large opening of the material guide hopper communicates with an inner cavity of the suspension region; a small opening of the material guide hopper communicates with the air inlet pipe; the lower side of the material guide hopper is provided with a plurality of air outlet spray heads; the plurality of air outlet spray heads are connected with an air pump through the air inlet pipe.

Description

technical field [0001] The invention belongs to the technical field of machinery, and relates to a prilling tower, in particular to an improved nicotinamide melt spray prilling tower and its operation method. Background technique [0002] Nicotinamide is vitamin B3, its chemical name is 3-pyridinecarboxamide, its melting point is 129-131°C, it is a white crystalline powder, easily soluble in water or ethanol. Niacinamide is widely used in medicine, food, and feed industries, and is an indispensable nutrient for the growth and development of humans and animals. In addition, nicotinamide can also be used as plant growth regulator, hair growth promoter, hair dyeing promoter, polymer stabilizer, electroplating solution additive and biochemical reagent, etc. [0003] At present, the production methods of industrial nicotinamide at home and abroad mainly use 3-picoline, 2-methyl-5-ethylpyridine or quinoline as raw materials, and generate nicotinic acid or nicotinic acid through d...

AI Technical Summary

Problems solved by technology

Due to the small particle size of the product, dust is flying in the packaging and use places, and the dust pollution in the workshop is serious. On the one hand, it causes product loss, and more seriously, it causes physical injury to workers.

In the process of storage, transportation and use, due to the small particle size of the product, it is easy to agglomerate, and nicotinamide itself is easy to agglomerate on the moisture-absorbing surface, and the agglomerated nicotinamide is not good in dispersibility when used as an additive or auxiliary agent. , seriously affecting the quality of downstream products

[0004] At present, the existing prilling towers have problems such as uneven particle size and difficulty in controlling the prilling process.

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