Equipment for producing high-nutrient monoammonium phosphate through double-tubular-reactor process

Abstract

The invention discloses equipment for producing high-nutrient monoammonium phosphate through a double-tubular-reactor process. The equipment comprises a strong phosphoric acid clarifying tank, a tubular-reaction acid mixing tank, a granulator, tubular reactors, a drying machine, a bucket elevator, a screening machine, a crushing machine, a belt conveyor, a cooling fluidized bed, a wrapping barrel, a cyclone separator, a dust exhausting fan and a tail gas washing system. The equipment runs stably during the process switching and normal production period and can extract a granular monoammonium phosphate product with uniform grain size and nutrients and water meeting the standard through the main processes of mixing acid in a tubular-reaction manner, spraying and granulating, drying, screening and crushing (collecting returning charge), cooling and wrapping and the like; the product is high in water solubility, free from blocking and stable in performance in the air, contains available phosphorus (P2O5) more than 52% and nitrogen (N) more than 11%, is a high-quality base raw material for preparing an N, P and K three-element compound fertilizer and has strong market competitiveness.

Description

technical field [0001] The invention relates to ammonium phosphate, in particular to a device for producing high-nutrient monoammonium phosphate by adopting a double-tube reverse process. Background technique [0002] At present, the domestic ammonium phosphate product market is seriously saturated. Improving product quality and realizing product breakthroughs and innovations are important ways to enhance the competitiveness of enterprises. To promote the multi-functionalization of devices and the diversification of product types to meet the needs of different customers, regions and seasons, It is an important means for enterprises to gain a foothold in the market and enhance their ability to resist risks in the fierce market competition. The production of monoammonium phosphate, especially the production of high-nutrient monoammonium phosphate, on the diammonium phosphate device is an in-depth exploration of the diversification of the functions of the production device. ...

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Problems solved by technology

[0003] After searching, there is no production equipment and method for the production of high-nutrient monoammonium phosphate by using wet-process phosphoric acid on the diammonium phosphate production device using double-pipe reverse technology in the Chinese patent database.

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