Tower type centrifugal-spraying differential action pelleting device

Abstract

The invention relates to a tower type centrifugal-spraying differential action pelleting device. A motor is arranged at the upper end of a machine shell; the lower end of the machine shell is connected with a pelleting sprayer; the motor are respectively in transmission connection with a distributor and a sprayer shell of the pelleting sprayer through an inner shaft and an outer shaft supported inside the machine shell in a penetrating manner; the distributor is connected on the inner shaft in the penetrating manner; a plurality of scrapers which are uniformly arranged along the circumference direction of the inner shaft are arranged on the distributor; the inner lateral sides of the scrapers are connected with the distributor and are parallel to an axis of the inner shaft; the outer lateral sides of the scrapers are matched with the inner wall of the sprayer shell in shape and are in a clearance state; and a plurality of spray orifices are uniformly distributed in the sprayer shell. The inner shaft and the outer shaft are eccentrically transmitted by using the motor, so as to drive the distributor and the sprayer shell of the pelleting sprayer to rotate; the plurality of the scrapers rotating with the distributor are arranged between the distributor and the sprayer shell, so that a small amount of fused materials are injected into the spray orifices in the sprayer shell at a high speed through the rotation of the scrapers for spray cooling and curing granulation; and the spray orifices are difficultly blocked, cooling and curing effects of sprayed liquid drops are good, and the efficiency is high.

Description

technical field [0001] The invention relates to a granulation device, in particular to a tower-type centrifugal spray differential granulation device used for granulation of high-concentration compound fertilizer melt slurry. Background technique [0002] my country is a big agricultural country, but also a big country in the production and use of chemical fertilizers. At present, my country's chemical fertilizer industry is in a new period of product upgrading, technological innovation, fertilizer production towards in-depth secondary processing, agrochemical services, and scientific fertilization. With the increasing production capacity of domestic urea or ammonium nitrate products and the improvement of fertilizer users' awareness of scientific fertilization, the direct fertilization of single-nutrient chemical fertilizers can no longer meet the requirements of modern scientific fertilization: for example, the utilization rate of effective elements in chemical fertilizers...

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problems that the high-concentration compound fertilizer melt is easy to block the nozzle hole of the nozzle during the spray granulation process, and the droplets sprayed from the nozzle hole cannot be effectively cooled and solidified into particles, etc., the present invention provides a simple and compact structure that can effectively It is a tower-type centrifugal spray differential granulation device that prevents nozzle nozzle clogging, high cooling and solidification efficiency of liquid droplets sprayed from nozzle holes, safe granulation production, high efficiency, and high granulation quality.

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