Dry method rolling granulation production process

Abstract

The invention discloses a dry method rolling granulation production process. The whole production process is a cyclic operation, and the strength of a finished product is controlled by adjusting the pressure of a roller. A material is directly compressed by mechanical pressure and formed without any additives. The product purity is guaranteed. According to the process, dry powder is adopted for direct granulation without a subsequent drying process, and the process is more favorable for connection and convergence and transformation of an existing production process. A production system is compact in structure, convenient to maintain, simple to operate, low in energy consumption, high in efficiency and low in failure rate. In the production process, a dedusting system is arranged and can control environmental pollution, reduce powder waste and packaging costs, and improve product transport capacity; a metering belt is adopted to convey raw materials for feeding of the process, the raw material conveying amount can be known at any time, and the rate of finished products in the whole process can be obtained by simple calculation; in the manufacturing process of the process, unqualified materials are collected and are rolled and formed again, and the raw material utilization rate and the rate of finished products are improved.

Description

technical field [0001] The invention relates to the field of chemical fertilizer production, in particular to a 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 unit a...

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Problems solved by technology

[0003] With the development of industrialization and the increase in the amount of chemical fertilizers in China, the production line of chemical fertilizers in my country is adopted. However, there is no screening step for unqualified materials in the existing production process, and the quality of the finished products cannot be guaranteed. Drying is required after production. The production cycle is long, and dust will be generated during the production process, which restricts the development of the fertilizer industry

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