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Method for manufacturing formula compound fertilizer

A manufacturing method and compound fertilizer technology, applied in the direction of urea compound fertilizer, nitrogen fertilizer, potash fertilizer, etc., can solve the problems of high geographical requirements, poor nutrient ratio adjustability, complicated process, etc., and achieve improved production efficiency, stable product quality, and good appearance smooth effect

Inactive Publication Date: 2010-01-27
SICHUAN YINGFENG IND
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Problems solved by technology

At present, the production equipment of domestic high-nitrogen compound fertilizer production enterprises is mainly high-tower compound fertilizer production line. The main disadvantages of its production process are that it requires large investment, high requirements for geographical conditions, complicated process, and it is inconvenient to implement on a production line. In the production of various compound fertilizers with different formulas, the proportion of nitrogen, phosphorus and potassium nutrients in the product is poorly adjustable, and the suitable range of the product is small

Method used

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  • Method for manufacturing formula compound fertilizer

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Embodiment Construction

[0015] like figure 1 Shown, a kind of production method of formula compound fertilizer comprises the following steps:

[0016] (1) Send the masterbatch with a certain nutrient ratio to the horizontal granulator through the conveying system, supply hot air to the granulator to heat the masterbatch through the hot air station, and adjust the hot air station, tail gas dust collection system and the outlet of the granulator The baffle valve maintains a slight positive pressure inside the granulator;

[0017] (2) According to the nutrient ratio of the masterbatch, and then compare the nutrient ratio of the target product, a certain amount of single fertilizer ammonium phosphate, potassium chloride or potassium sulfate, fillers and other raw materials are evenly mixed and heated;

[0018] (3) According to the nutrient ratio of the masterbatch, then compare the nutrient ratio of the target product, and heat and melt a certain amount of urea in a urea melter;

[0019] (4) The above-...

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Abstract

The invention relates to a method for manufacturing a formula compound fertilizer, which is characterized in that: a master batch with certain nutrient proportion is fed into a horizontal granulator through a transmission system; dried and heated ammonium phosphate, potassium chloride or a mixture of potassium sulfate, stuffing and the like are mixed together with molten urea in a urea melter, and the mixture are fed into a mixed slurry pump groove through a mixed slurry delivering pipe to generate fusant slurry; and the fusant slurry is mechanically atomized by pressurizing through a slurry pump and is sprayed into the master batch of the granulator. The method can freely adjust the nutrient proportion of nitrogen, phosphorus, potassium and the like according to the demands so as to produce compound fertilizer products with different nutrient proportions, and the method realizes granulation in the horizontal granulator and completes spraying to improve the production efficiency. Simultaneously, the method is not influenced by geographic conditions, and saves investment by two third than the tower compound fertilizer technology.

Description

technical field [0001] The invention relates to a production method of chemical fertilizer, especially a production method of formula ternary compound fertilizer. technical background [0002] Soil testing and formula fertilization is an internationally accepted balanced fertilization technology. In a nutshell, it is to take soil samples to measure the soil nutrient content. After diagnosing the soil nutrients, "prescribe" according to the nutrients needed by the crops, and "prescribe according to the prescription" . At present, the production equipment of domestic high-nitrogen compound fertilizer production enterprises is mainly high-tower compound fertilizer production line. The main disadvantages of its production process are that it requires large investment, high requirements for geographical conditions, complicated process, and it is inconvenient to implement on a production line. In the production of various compound fertilizers with different formulas, the proporti...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05G1/00C05G5/00C05C9/00C05B7/00C05D1/02
Inventor 廖志敏彭凌云米贞文李夏福邱伟王伦黄宁
Owner SICHUAN YINGFENG IND
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