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Preparation method of compound fertilizer

Pending Publication Date: 2021-12-21
帝益生态肥业股份公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] Most of the existing compound fertilizer granulation processes need to be completed through multiple processes, and the production continuity is insufficient, which is not conducive to improving production efficiency

Method used

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  • Preparation method of compound fertilizer
  • Preparation method of compound fertilizer
  • Preparation method of compound fertilizer

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Embodiment Construction

[0058] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0059] In addition, an element in the present invention is said to be "fixed" or "disposed on" another element, and it may be directly on another element or an intervening element may also exist. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and similar expressions are used herein for purp...

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Abstract

The invention relates to a production process of an agricultural fertilizer, in particular to a preparation method of a compound fertilizer. The method is characterized in that urea, calcium cyanamide, plant ash, ammonium nitrate, phosphorus pentoxide and dry poultry manure are used as raw materials of a compound fertilizer, different raw materials are loaded through a plurality of hoppers arranged on a granulator, the feeding proportion is adjusted according to the ratio of the raw materials, the raw materials put in proportion are mixed by utilizing the mixing mechanism of the granulator, ammonia water and phosphoric acid are added in the mixing process to increase the liquid phase content in the raw materials and the bonding force among the raw materials, proper temperature is provided for granulation by virtue of heat generated by reaction of phosphoric acid and ammonia water, ammonia water can supplement nitrogen element for the compound fertilizer, phosphoric acid supplements phosphorus element, and the fully mixed raw materials are extruded and granulated through an integrally arranged rolling structure. According to the invention, when the method and the granulator are used for producing the compound fertilizer, the effects of uninterrupted granulation and more sufficient mixing are achieved, and the production efficiency of the compound fertilizer is improved.

Description

technical field [0001] The invention relates to a production process of agricultural fertilizer, in particular to a preparation method of compound fertilizer. Background technique [0002] Compound fertilizer refers to fertilizers that contain at least two of the three nutrients, nitrogen, phosphorus, and potassium, and are made by chemical methods. [0003] Compared with traditional organic fertilizers, compound fertilizers are more convenient to apply. Organic fertilizers have a lighter specific gravity and are easily blown away by the wind when applied in the field, while compound fertilizers made into granules are easy to apply and are not easily blown away by the wind; in addition, Some inorganic components can be added to the compound fertilizer to improve the fertilizer efficiency, but if the traditional powdery organic fertilizer is added with inorganic components, it is easy to absorb moisture and agglomerate. [0004] Most of the existing compound fertilizer granu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05G5/12C05G1/00
CPCC05G5/12C05B7/00C05B17/00C05C1/00C05C7/00C05C9/00C05D1/00C05F3/00
Inventor 刘新领
Owner 帝益生态肥业股份公司
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