Novel dry process rolling granulation production process

Abstract

The invention discloses a novel dry process rolling granulation production process. In the process, an iron remover is installed on a raw material scraping plate; when raw materials pass across the raw material scraping plate, the iron remover removes ferromagnetic impurities in the raw materials, the abrasion to the surface of a roller caused by the impurities in the raw materials is reduced, andthe service life of a machine is prolonged; the process can undergo cyclic operation, continuous production is achieved, and the quality of finished products is high. In the process, dry powder is adopted for direct granulation, and a follow-up drying process is not required, which is favorable for the convergence and transformation of existing production processes. A dust removal system is arranged for the production process of the process, environmental pollution can be controlled, powder waste and packaging cost are reduced, and the product transportation capability is improved. Granular powder materials collected by a bag filter and a dual cyclone dust collector are returned to a fine powder return scraping plate in the process, and are subjected to roll forming and further treatmentto improve the utilization of raw materials.

Description

technical field [0001] The invention relates to the field of chemical fertilizer production, in particular to a novel dry rolling granulation production process. Background technique [0002] Chemical fertilizer is the abbreviation of chemical fertilizer. It is a fertilizer made by chemical and (or) physical methods that contains one or several nutrient elements needed for the growth of crops. It is also called inorganic fertilizer, including nitrogen fertilizer, phosphorus fertilizer, potassium fertilizer, micro fertilizer, and compound fertilizer. fertilizer etc. Chemical fertilizers have the following common characteristics: simple ingredients, high nutrient content; fast fertilizer efficiency, strong fertilizer; some fertilizers have acid-base reactions; generally do not contain organic matter, and have no effect on improving soil and fertilizing. Applying chemical fertilizers can not only improve soil fertility, but also an important measure to increase crop yield per ...

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Problems solved by technology

[0003] With the development of industrialization and the increase of the amount of chemical fertilizers in China, the production line of chemical fertilizers in my country is adopted, but the utilization rate of raw materials in the existing production process is low, the production cost is high, and the raw materials contain ferromagnetic substances, which will damage the surface of the roll. Wear and tear, and the service life of the production system cannot meet people's expectations, which restricts the development of the fertilizer industry

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