Nodulizer for urea with no leakage

Abstract

The invention relates to a novel urea non-leakage granulator in urea production. The inlet of the buffer tank communicates with the buffer tank through the urine inlet valve and the urine inlet pipe, and the outlet extends into the nozzle of the granulator through the urine outlet valve and the central pipe. The gear meshes with the large gear fixed on the hollow shaft. The hollow shaft is fixed with the reduction box through the bearing. The lower end of the hollow shaft is fixed to the nozzle, the upper sealing cover is fixed to the central tube, and the hollow shaft close to the lower end of the sealing cover has packing Sleeve and stuffing box, the stuffing box is fixed with the reduction box by bolts, the space between the stuffing sleeve and the stuffing box is filled with high temperature resistant sealing packing, and the lower opening of the stuffing sleeve and stuffing box is fixed with a packing gland. It has the advantages that the urine does not overflow, and the auxiliary line device can clean the filter screen in the buffer without stopping the granulator.

Description

(1) Technical field [0001] The invention relates to a granulation device in urea production. (two), background technology [0002] At present, the traditional urea granulator has many faults and short operation period. The main manifestations are: 1. When the urine is sent, the overflow is serious, and it flows into the reduction box through the outer wall of the hollow shaft. In an unstable situation, this problem is more obvious when the evaporation cycle is repeated and the material is fed repeatedly. 2. The nozzle of the granulator is blocked by debris. When it is necessary to clean the debris in the nozzle, the granulator must be stopped to clean. The general operating cycle of the granulator is about 2 months, and the shortest is only a few days, which cannot guarantee normal production. and long-term operation of the equipment. (3) Contents of the invention [0003] In order to overcome the shortcomings of the prior art, the present invention provides a novel urea...

AI Technical Summary

Problems solved by technology

[0002] At present, the traditional urea granulator has many faults and short operation period. The main manifestations are: 1. When the urine is sent, the overflow is serious, and it flows into the reduction box through the outer wall of the hollow shaft. In an unstable situation, this problem is more obvious when the evaporation is cycled multiple times and the material is repeatedly fed.

2. The nozzle of the granulator is blocked by debris. When it is necessary to clean the debris in the nozzle, the granulator must be stopped to clean. The general operating cycle of the granulator is about 2 months, and the shortest is only a few days, which cannot guarantee normal production. and long-term operation of the equipment

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