Preparation method of slow-release organic fertilizer

Abstract

The invention discloses a preparation method of a slow-release organic fertilizer, and relates to the technical field of slow-release organic fertilizers, the preparation method of the slow-release organic fertilizer comprises the following steps: step 1, proportionally weighing a carrier, dissolving the carrier in a water solution, and putting the carrier and a fertilizer raw material into a processing device for mixing treatment; step 2, adding the prepared cross-linking agent into the processing device, carrying out mixing reaction again, and maintaining the reaction time to be 30-40 minutes; and 3, hot air is introduced into the materials through the processing device for drying, and the drying temperature is kept at 50-60 DEG C. By means of the arranged material turning mechanism, when a material stirring pipe rotates, a spiral auger piece can be driven to rotate, so that materials are transmitted in the axis direction of the material mixing tank, effective turning over of the materials is achieved, and the material mixing and drying uniformity is improved; and the long circular through holes formed in the spiral auger sheets are utilized, so that convection of the materials in the long circular through holes is facilitated, and the mixing and drying effects of the materials are further improved.

Description

technical field [0001] The invention relates to the technical field of slow-release organic fertilizers, in particular to a preparation method of slow-release organic fertilizers. Background technique [0002] Slow-release fertilizers are also known as slow-release fertilizers or controlled-release fertilizers. The nutrient-containing compounds in the fertilizer are released slowly in the soil or the nutrient release rate can be controlled to a certain extent for continuous absorption and utilization by crops. During the production and processing of slow-release fertilizers, the corresponding additives need to be mixed with fertilizer raw materials, and finally dried and granulated. [0003] After searching, the utility model patent with the publication number CN214881184U discloses a slow-release fertilizer production system, including a storage bucket, a box cover, a supporting leg, a crushing component, a stirring component and a sealing component. A cavity structure wi...

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Problems solved by technology

[0004] But the above-mentioned invention has the following disadvantages: when the above-mentioned patent is used, the storage tank cannot be rotated, and only the rotating shaft is used to drive the stirring shaft to rotate to realize the mixing of materials. Although under the action of the cylinder, it can move in the vertical direction, To increase the scope of work, but the actual scope of action is still relatively limited, the material near the edge of the storage channel cannot be stirred quickly, resulting in low overall mixing efficiency of the material, so there are limitations

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