The Nitro Tower Granulation Technology And Engineering Research

With the loss of the number of rural labor and the increase of farmers’income, efficient fertilizers were favored by many farmers. And the tower of compound fertilizer granulation had more obvious effect than traditional compound fertilizer, which conformed to the farmers to use fertilizer habit. Fertilization was promoted under the condition of soil testing formula, and the tower granulation compound fertilizer production were enterprised if the quality products can be produced according to the formula. This product can be accepted by farmers, constantly improving the compound fertilizer proportion in fertilizer use in China result of many advantages.For nitro compound fertilizer production methods were studied, including slurry, solid granule, part of the slurry, melt method, mixing, extrusion, etc. For nitro compound fertilizer production mainly granulation process was investigated, mainly include:melt spray granulation tower, drum granulator granulation, paddle type granulator granulation, granulator granulation, rotary steel belt condensation granulation. Analyzed the tower melt prilling process principle, method of melt granulation mechanism was not only a mechanism, but also was the several kinds of combination mechanism, which is difficult to have a clear boundaries and permeate the granulation process. Including the nucleation mechanism, mechanism of stratification, coalescence mechanism, mechanism of crushing mechanism, damage, abrasion mechanism, grinding strip transfer mechanism, charge mechanism, from the shrinkage mechanism, sticky sand material matching mechanism. Analyzed the advantage of the nitro tower granulation, and its market prospect was investigated, and laid a good foundation for the project construction.In the construction of nitro tower project, the tower melt spray granulation tower technology were studied. According to the melt spray granulation tower production process, the product formula applicability were adjusted and the production process and consumption of typical construction can be controlled. The annual output of 1.2 million ton nitro compound fertilizer equipment were formed in the complete set of solutions. Paper analyzed the influence of various process conditions on the granulation and near the triple point temperature granulation technology solutions, further to find and solve the problems of tower granulation nitro compound fertilizer production. Finally on the nitro tower investment and economic evaluation and predicts the market prospect of the nitro tower compound fertilizer.The nitro tower compound fertilizer plant after nearly 2 years of operation, through continuous summary, realized the safe, long cycle and stable operation in the Kingenta ecological engineering co., LTD. Product structure adjustment had played a positive role.