Atomizing rotary spray disc for fertilizer production and granulator

Abstract

The invention discloses an atomizing rotary spray disc for fertilizer production. The atomizing rotary spray disc comprises a lower end plate, a plurality of indexing blocks and an upper end plate which are arranged from bottom to top; the plurality of indexing blocks are uniformly distributed at intervals at the peripheral edge positions of the lower end plate; the lower end plate, the pluralityof indexing blocks and the upper end plate define an inner cavity of the spray disc; the center of the upper end plate is provided with a molten liquid inlet; and the center of the lower end plate isconnected with an output shaft of a driving motor. Each indexing block of the atomizing rotary spray disc is convex and is widened from center to two sides in turn, and a backflow structure is formed,so that the molten liquid can be sprayed more smoothly. Rectangular nozzles have a certain width and height and rotate at a high speed to generate huge centrifugal force, so that the probability thatthe rectangular nozzles are blocked by solid impurities is greatly reduced.

Description

technical field [0001] The invention relates to the field of spray discs, in particular to an atomizing rotary spray disc in a spherical granulation production process. Background technique [0002] Agricultural chemical fertilizer is an essential nutrient element for plants. It can be used to improve soil properties and improve soil fertility. It is one of the material basis of agricultural production. [0003] The diameter of the spherical particles of the existing agricultural chemical fertilizer is about 2 mm, but in practical application, the fertilization effect of the agricultural chemical fertilizer particles between 2-10 mm is the best. But the manufacturing process of the spherical granules of agricultural chemical fertilizers in the existing melt granulation process can't make the agricultural chemical fertilizers of large particles. However, the coating and granulation process cannot adapt to the high viscosity and other characteristics of the melt due to the pr...

AI Technical Summary

Problems solved by technology

However, in the existing melt granulation process, the manufacturing process of spherical agricultural fertilizer particles cannot produce large-scale agricultural chemical fertilizers.

However, the coating and granulation process cannot adapt to the high viscosity and other characteristics of the melt due to the preparation of the existing mist-like molten slurry. The traditional pressure nozzle sprays the raw material melt from a nozzle hole. It is sprayed in a fan shape, and since the viscosity of the ternary compound fertilizer melt slurry is thousands or even tens of thousands of times that of the urea melt (the unit of viscosity is cps, the Chinese reads as centipoise, the melt viscosity of urea is only 2cps, The melt viscosity of the ternary balanced fertilizer can reach up to 500-800 million cps), and at the same time, because the phosphorus, potassium and fillers in the composition of the ternary compound fertilizer melt slurry are solid insolubles, and the inherent impurities in the raw materials And unpacking and unloading rope fibers and other substances, so it is particularly easy to block the molding nozzle

[0004] Aiming at the problem that traditional pressure nozzles are easy to clog, in recent years, several domestic companies have successively invested funds and efforts to try to develop a new granulation process that can replace high towers, but all of them cannot meet the requirements of high-viscosity melt. Therefore, the industrial device for high-viscosity melt atomization is the bottleneck of the entire process. It is necessary to develop a new atomization device that is not easy to block to improve the production process level of the entire agricultural chemical fertilizer spherical particles.

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