Nicotinamide fusion and spray granulation tower and operation method thereof

Abstract

The invention provides a nicotinamide fusion and spray granulation tower and an operation method thereof. The nicotinamide fusion and spray granulation tower comprises a tower body, wherein an exhausting pipe is arranged at the top of the tower body, and a gas inlet pipe is arranged at the bottom of the tower body; an atomizing sprayer assembly is arranged in a liquid spraying area and comprises a plurality of coil tubes nested sequentially from small to large, spray nozzles are uniformly distributed on a bottom surface of each coil tube, a rotating shaft assembly is arranged in the centers of the plurality of coil tubes and comprises a center shaft, a plurality of rotating sleeves are nested on the periphery of the rotating shaft sequentially, and the coil tubes and the rotating sleeves are in one-to-one correspondence connection, and the rotating shaft assembly is driven by a rotating motor to realize connection; a plurality of suspending plates are vertically arranged in a suspension area, a large quantity of sieving holes are uniformly formed in the suspending plates, and the sizes of the sieving holes are gradually increased from lower suspending plates to upper suspending plates; a funnel-shaped guiding hopper is arranged in a wind power area, a large port of the guiding hopper is communicated with an inner cavity of the suspension area, a small port of the guiding hopper is communicated with the gas inlet pipe, and a plurality of air outlet spray heads are arranged below the guiding hopper and are connected with an air pump through air inlet pipes.

Description

technical field [0001] The invention belongs to the technical field of machinery, and relates to a prilling tower, in particular to a nicotinamide melt spray prilling tower and an operation method thereof. 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 dire...

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.

Images