Fertilizer granulation additive and preparation method thereof

Abstract

The invention relates to a fertilizer granulation additive and a preparation method thereof. The fertilizer granulation additive is prepared from, in percentage by weight, 3%-5% of quicklime powder, 3%-5% of alcohol waste liquid dry powder, 0.2%-0.5% of a surfactant, 0.5%-1% of modified waste manganese slag and the balance of modified bentonite. The prepared fertilizer granulation additive has high adsorption activity and binding power and contains rich fertilizer effect ingredients. The fertilizer granulation additive is added in the fertilizer granulation process, the fertilizer caking property can be greatly increased, the granulation and balling rate is increased, the granulation speed and the yield of a fertilizer are increased, the granule strength is increased, the water content of the fertilizer can further be reduced, fertilizer caking is prevented, the fertilizer keeps good looseness, and transportation, storage and use of the fertilizer are facilitated. The fertilizer granulation additive is used for granulation of the fertilizer, nutrients of the prepared granule fertilizer can be increased, the synergism effect of the fertilizer is remarkable, the nutrients in the fertilizer can be slowly released, fertilizer waste is reduced, the utilization efficiency of the fertilizer is improved, and the function of improving the soil environment can be realized.

Description

technical field [0001] The invention relates to the technical field of fertilizer additives, in particular to a fertilizer granulation additive and a preparation method thereof. Background technique [0002] With the increase of population and reduction of arable land, and the improvement of people's living standards, agriculture is required to continuously increase production [0003] Quantity and improve product quality, fertilizer plays an important role in agricultural production. Fertilizer is one of the important means of agricultural production. The scientific use of fertilizer is the key to achieve high-yield, high-quality, and efficient agriculture. With the development of society, various types of fertilizers have appeared, and granular fertilizers have good performance and convenient fertilization. No dust during loading and unloading, no agglomeration during long-term storage, good fluidity, easy to spread when fertilizing, and can realize mechanical fertilizati...

AI Technical Summary

Problems solved by technology

At present, clay binders (including clay, chalk, kaolin, coal slime, bitter soil, sepiolite powder, etc.) are commonly used in the production of granular fertilizers, and the following problems often occur when using this type of binder: 1. Poor binding performance and low granulation rate; 2. Due to poor dispersion and uneven distribution, the nutrient content of each compound fertilizer granule is different; 3. After drying, the clay on the surface of the fertilizer granules becomes powdery and easy to fall off, which not only reduces the production efficiency, and seriously affected the pass rate of the product; 4. The particle strength is low, and it is easy to break during storage and transportation, which increases the contact surface between the particles and is easy to agglomerate; 5. Due to poor adsorption, nitrogen, phosphorus The utilization rate of nutrients such as potassium and potassium is not high. Long-term use of this kind in large quantities will easily cause soil acidification and hardening, and the biological activity will decrease; 6. The single function cannot supplement the nutrients needed by crops; increase, reducing the content of active ingredients, and relatively increasing production energy consumption and transportation costs

[0007] The binders mentioned in the above-mentioned documents can play a good role in improving the quality of pellets and the granulation rate in the granulation of fertilizers, but these binders are added to fertilizers as an additive to cause Granules generally only play the role of improving the properties of fertilizers, and their effect is single, and the synergistic effect on fertilizers is not obvious. The fertilizer granulation additive that can improve the fertilizer efficiency is very important to improve the production and overall utilization of fertilizer

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