Device for concentrating slurry in ammonium dihydrogenphosphate production

• Main Authors: CAO HUI, LIU XIANMENG, ZHAO GUANGQIANG, SUN RUITAO
• Format: Patent
• Language: Chinese; English
• Published: 08.01.2014
• Subjects: CHEMISTRY; CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION ORPROCESSING OF GOODS; COMPOUNDS THEREOF; FERTILISERS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; INORGANIC CHEMISTRY; MANUFACTURE THEREOF; METALLURGY; NON-METALLIC ELEMENTS; PHOSPHATIC FERTILISERS; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE

The utility model provides a device for concentrating slurry in ammonium dihydrogenphosphate production, and relates to phosphatic fertilizer industries and the technical field of energy conservation and environmental protection. The device comprises a neutralization flash chamber, a concentration circulating pump, a slurry heater, a concentration flash chamber, a condensation water tank and a steam generator and is characterized by being provided with a steam compressor, wherein the steam inlet of the steam compressor is connected to the steam outlets of the neutralization flash chamber and the concentration flash chamber, and the steam outlets of the steam compressor and the steam generator are connected to the steam inlet of the slurry heater through a steam main pipe. According to the device, steam generated by the neutralization flash chamber and the concentration flash chamber enters the steam compressor so as to be compressed and then is mixed with fresh steam generated by the steam generator so as to