Manufacture of granule fertilizer roller cover, granulator and fertilizer production system using the same

Abstract

The invention discloses a roller cover for making granule fertilizer, a granulator using the roll cover and a fertilizer production system. There are several mold cavity pockets of the same size on the outer cylindrical surface of the roller sleeve. The cross-sectional shape of the mold cavity pockets is a regular hexagon. Spaces are left between adjacent mold cavity cavities. The roller cover can greatly increase the granulation rate, that is, the quantity of granular extruded products produced by a unit amount of raw materials, and at the same time improve the granulation efficiency. Both the granulator and the fertilizer production system adopt the above-mentioned granulated fertilizer roller cover, which also has a positive effect of improving the granulation rate and granulation efficiency.

Description

technical field [0001] The invention relates to a roller cover for preparing fertilizer granules, a granulator using the roller cover and a fertilizer granulation production system. The roller sleeve is used to be installed on the roller shaft of the extruding pair roller. Background technique [0002] Existing mold cavities on the outer surface of roller sleeves used for preparing fertilizer granules are generally hemispherical, semiellipsoidal or straight groove-shaped. In practical application, it is found that the primary granulation rate of the granulator using the existing shape cavity pocket roller sleeve is low, and the ungranulated material needs to be returned to the granulation system for reprocessing, resulting in a decrease in granulation efficiency. [0003] The existing hoist used in the fertilizer granulation production system has the following defects in the process of use: First, the direction of the hopper is uncertain during the transmission process, and...

AI Technical Summary

Problems solved by technology

In practical application, it is found that the primary granulation rate of the granulator using the existing shape cavity and pocket roller sleeve is low, and the ungranulated material needs to be returned to the granulation system for reprocessing, resulting in a decrease in granulation efficiency

[0003] The existing hoist used in the fertilizer granulation production system has the following defects in the process of use: First, the direction of the hopper is uncertain during the transmission process, and it is easily deflected by disturbance, and the normal loading and unloading of materials cannot be guaranteed ;Second, the material in the hopper is easy to adhere to the inner wall of the hopper, and it cannot be completely unloaded, which reduces the utilization rate of the hoist

The main disadvantages of this method are: first, the compound fertilizer raw material crushing operation process is cumbersome and the efficiency is low; second, due to the need to set up a large particle material return system, the equipment occupies a large area and the investment cost is high

[0005] The abrasive grain drum used in the fertilizer granulation production system and as the prior art mainly has the following disadvantages: first, the material is prone to collision and fragmentation when being turned over for abrasive grains; second, the material is quickly dried in the abrasive grain drum When the abrasive grains are heated, it is easy to form large lumpy materials, resulting in uneven drying of the abrasive grains or bonding of the materials.

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