Contain sulphur laterite -nickel ore ore deposit tail gas relieving haperacidity preprocessing device

• Main Author: XIANG BINGHE
• Format: Patent
• Language: Chinese; English
• Published: 07.12.2016
• Subjects: CHEMISTRY; CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION ORPROCESSING OF GOODS; COMPOUNDS THEREOF; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; INORGANIC CHEMISTRY; METALLURGY; NON-METALLIC ELEMENTS; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; SEPARATION; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE; TRANSPORTING

The utility model discloses a contain sulphur laterite -nickel ore ore deposit tail gas relieving haperacidity preprocessing device, include with laterite -nickel ore ore deposit calcination production line in the tail gas return line that links to each other of rotary kiln export, tail gas return line connects a waste heat utilization boiler that is equipped with tail gas heat transfer cooling device, connect a tail gas cleanup unit behind the waste heat utilization boiler, be equipped with tail gas filtration purification device and drying device among the tail gas cleanup unit, be equipped with the nitrogen preparation unit that to retrieve nitrogen gas in the tail gas behind the tail gas filtration purification device, be equipped with a concentrated compressor arrangement of gas behind the nitrogen preparation unit, gaseous concentrated compressor arrangement connects one set of contact sulphuric acid preparation facilities, the utility model discloses can purify rotary kiln tail gas, the concentrated pr