Preparation method of high-concentration binary compound fertilizer

Abstract

The invention provides a preparation method of a high-concentration binary compound fertilizer, which uses a preparation device of the high-concentration binary compound fertilizer, and the device comprises a support frame, a conveying granulation mechanism and a granulation shearing mechanism. The preparation method can solve the following problems in the preparation process of the high-concentration binary compound fertilizer: a, when the traditional binary compound fertilizer is prepared at present, the mixed viscous slurry needs to be granulated to form granules so as to be conveniently bagged, stored and transported, the extrusion mode is a basic method of granulation, and when the slurry is conveyed and extruded, the phenomenon of solidification and caking often occurs, so that a conveying channel is blocked; and b, according to an existing granulation mode, after granulation is completed, an extrusion head needs to be detached, slurry in an extrusion hole needs to be cleaned away, the extrusion hole is prevented from being blocked when the extrusion hole is not used for a long time, and the mode is clumsy, and only the most traditional mode is adopted.

Description

technical field [0001] The invention relates to the technical field of binary compound fertilizer preparation, in particular to a preparation method of high-concentration binary compound fertilizer. Background technique [0002] Binary compound fertilizer is a category of chemical fertilizer. Chemical fertilizer is an agricultural product developed in modern civilization based on the three major elements necessary for crop production, mainly including nitrogen, phosphorus and potassium. For example, now commonly used nitrogen fertilizers include urea, ammonium nitrate, ammonium bicarbonate, etc.; potassium fertilizers include potassium chloride, etc.; For example, the phosphorus nitrate currently used is a binary compound fertilizer that contains both nitrogen fertilizer and phosphorus fertilizer. [0003] At present, the following problems exist in the preparation process of high-concentration binary compound fertilizers: a. At present, when preparing traditional binary co...

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Problems solved by technology

[0005] The invention provides a kind of preparation method of high-concentration binary compound fertilizer, which can solve the following difficult problems existing in the preparation process of high-concentration binary compound fertilizer: The slurry is granulated to form granules for storage and transportation in bags. The extrusion method is the basic method of granulation. When the slurry is conveyed and extruded, solidification and agglomeration often occur, resulting in transportation Channel blockage; b. At present, the existing granulation method needs to disassemble the extrusion head after the granulation is completed, and clean up the slurry in the extrusion hole to prevent the extrusion hole from being blocked for a long time. This method is clumsy, but the most traditional method is adopted; c. At the same time, when granulating and shearing, there are fertilizer particles splashing everywhere, causing particles everywhere around

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