150Kt/a Monoammonium Phosphate Device And Enrichment Process Modification And Optimization

Xian Yang Zedong Chemical Group Co., Ltd. has450kt/a of monoammoniumphosphate acid production equipment and supporting production facilities, whichdevice consists of a set of monoammonium phosphate production of150kt/a granularMAP and two sets of150kt/a powder monoammonium phosphate production plantcomponents. The company mainly from Hubei Bao Kang phosphate concentration ofwet process phosphoric acid production at around18%(P2O5%in dollars) toammonium phosphate slurry production process resulting mainly10-45-0monoammonium phosphate product specifications. But with the development andreduction of phosphate rock resources taste of wet phosphoric acid concentrationgradually showing a downward trend, the impact of product specifications, whileincreasing the production of consumption. This topic which based on the slurrymethod of ammonium phosphate production process aims to transform and optimizethe ammonium phosphate production systems of Xian Yang Zedong Chemical GroupCo., Ltd, including the optimization of technical indicators and degrees, steam andother energy use, process piping and common production problems, production andother aspects of waste recycling.Neutralizing and concentrating is very critical in the ammonium phosphateproduction processes and it is necessary to optimize the transformation. The main topicof optimizing content to optimize technical indicators and degrees by analyzing thecontent of impurities of iron phosphate, aluminum, magnesium, etc., and exploring thechemical reaction of iron, aluminum, magnesium and other impurities occur inammoniated process, the degree of impact on the degree of ammoniated slurry andproduct specifications; to recovery steam and condensate in the production process forammonium phosphate and reduce the steam consumption of bituminous purposes; tooptimize the slurry feed system. For the production of feed pipes cleaned frequently,the impact of the system drive ratio. Respectively, from the slurry concentration,temperature, feed opening four areas over the location and hydrostatic pressure to analyze the impact is not smooth slurry transport reasons, and to extend the cleaningcycle pipeline through the transformation and optimization, reducing the chance ofparking; to recycling wastewater. Water balancing is a major difficulty in ammoniumphosphate system. And digesting wastewater treatment is the key. This paper analyzesthe impact ammonium phosphate slurry production process a large excess ofcirculating water cooling tower on production and achieve a reasonable cooling towerammonium phosphate digestion of wastewater treatment through the transformationand optimization of production systems to ensure water balance.Topic statistics and analysis ore processing, determination of the grade andimpurities, production of phosphoric acid, ammoniated slurry and other aspects forphosphate source Xian Yang Zedong Chemical Group Co., Ltd., Through theoreticalcalculation process and PH-neutralization degree curve in the test, to elaborate on theimpact and degree of impurity components and product specifications. Make full useof the waste heat steam condensate by monitoring the temperature of steam condensate,water statistics, and designing layout. Find a smooth delivery line to extend thepipeline cleaning cycle by arranging the various flash systems, ammoniatedammonium phosphate slurry correlation properties. maintain a closed loop waterproduction system by Ammonium phosphate circulating water cooling tower waterproduction, water points and the surrounding plant layout, so that a reasonable dealwith various aspects of digestion. Ultimately150kt/a production unit andconcentrated ammonium phosphate process transformation and optimization purposes.