Telescopic compound fertilizer rotary drum granulator

Abstract

The invention relates to a telescopic compound fertilizer rotary drum granulator comprising a support (1), a feeding port (2), a supporting wheel (4), a frame (8), and a discharging port (9). The frame (8) is provided with an inner cylinder (7) and an outer cylinder (6) sleeved on the inner cylinder (7), wherein the rotation directions of the inner cylinder (7) and the outer cylinder (6) are the same, but the rotation speeds of the inner cylinder (7) and the outer cylinder (6) are different. Granulating rods (3) are distributed in a threaded form on the outer wall of the inner cylinder (7). The inner cylinder (7) is arranged on the support (1) through a shaft, wherein the cylinder (7) can rotate. The outer cylinder (6) is arranged on the frame (8) through the supporting wheel (4). The feeding port (2) is arranged on one end of the outer cylinder (6), and the discharging port (9) is arranged on the other end of the outer cylinder (6). Compared to existing technologies, the granulator provided by the invention is advantaged in small volume, simple structure, high granulating rate, and no restriction on raw material performance. With the telescopic compound fertilizer rotary drum granulator provided by the invention, materials with any formula can be produced.

Description

technical field [0001] The invention relates to a sleeve-type compound fertilizer drum granulator, in particular to a sleeve-type compound fertilizer drum granulator suitable for granulating powdery materials with various properties. Background technique [0002] At present, the granulators used in the production of compound fertilizers in China mainly include disc granulators, biaxial granulators, rotary drum granulators and extrusion granulators. Extrusion granulators are common in that they can only mix and granulate limited unit fertilizers, and cannot produce multiple high-quality compound fertilizers, with high energy consumption and low output; disc granulators are mainly difficult to collect dust and smoke, and cannot Effective ammoniation, it is not convenient to use steam granulation, only cold water can be used for granulation, so the energy consumption is also high, and the output is not large; the double-shaft granulator has a simple structure, high flexibility,...

AI Technical Summary

Problems solved by technology

Extrusion granulators are common in that they can only mix and granulate a limited amount of fertilizer, and cannot produce multivariate high-quality compound fertilizers, and have high energy consumption and low output; disc granulators are mainly difficult to collect dust and smoke, and cannot It can effectively carry out ammonification, and it is not convenient to use steam to granulate. It can only be granulated with cold water, so the energy consumption is high and the output is not large; , but the appearance of the product particles is not round, and it is not easy to be accepted by farmers; the output of the drum granulator is large, and the appearance of the particles is also round. The disadvantages are low product yield, low product hardness, large void ratio, and easy agglomeration

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