High tower urea-based compound fertilizer, production process and special granulator

By designing a special granulator for the production process of Gaotaurea composite fertilizer, using technical means such as the dragon conveyor and granulation nozzle, the problem of liquid raw materials is solved, the granulation efficiency and product quality are improved, and the production cost and safety are improved.

CN119751150APending Publication Date: 2025-04-04ANHUI HUILONG GRP WUHE ECOLOGICAL FERTILIZER CO LTD
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Patent Information

Application Number
CN202411960542.3
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-12-30
Publication Date
2025-04-04

AI Technical Summary

Technical Problem

In the existing high tower composite fertilizer production process, liquid raw materials are prone to material blockage when entering the shear emulsification unit, which affects granulation efficiency and product quality.

Method used

A special granulator for the production process of hightaurea compound fertilizer was designed. Two opposite dragon conveyors were used to transport the material to the shear emulsification unit to ensure smooth flow of the material, and granulation nozzles and air supply pumps were used in the granulation unit for granulation and cooling.

Benefits of technology

Through the design of a special granulator, material blockage is avoided, granulation efficiency and product quality are improved, energy consumption and raw material waste are reduced, production costs are reduced, and the safety of the production process is improved.

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Abstract

The present invention relates to a high-tower urea-based composite fertilizer, a production process and a special granulator. The composite fertilizer comprises a nitrogen source, a phosphorus source, a potassium source, calcium powder, a functional additive and a filler, and the proportions thereof are precisely adjusted to meet the growth requirements of plants. The production process comprises heating and melting the nitrogen source, mixing it with other raw materials to form a mixed slurry, granulating it with a granulator, cooling it to obtain coarse particles, and then coating it. The special granulator comprises a tower body, a shear emulsification unit and a granulation unit, and the material is conveyed to the shear emulsification unit by an auger conveyor to avoid blockage and improve efficiency. The design of the granulator helps to improve the uniformity of material mixing, reduce nutrient fluctuations, and improve the quality of fertilizer particles. The composite fertilizer and production process of the present invention can improve the utilization rate of fertilizers, enhance plant stress resistance, improve soil structure, and reduce production costs and environmental impacts at the same time, and have significant economic benefits and environmental advantages.
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