System for removing ammonia nitrogen in boiler flue gas desulfurization wastewater

• Main Authors: LI QIDONG, XU XIANGYING, XIA LUBEI, WANG MINGCHUAN, YIN YONGAN, REN PEIJIE, WANG CUNJIN, LU GUOQING
• Format: Patent
• Language: Chinese; English
• Published: 02.08.2024
• Subjects: BLASTING; CHEMISTRY; COMBUSTION APPARATUS; COMBUSTION PROCESSES; CONSUMING WASTE PRODUCTS BY COMBUSTION; CREMATION FURNACES; FLUES; HEATING; LIGHTING; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLIDMATERIALS OR FLUIDS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROMSOLID MATERIALS OR FLUIDS; MECHANICAL ENGINEERING; METALLURGY; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTIONRESIDUES; SEPARATION; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS; SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATICTABLES OR JIGS; TRANSPORTING; TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE; WEAPONS

The utility model discloses a system for removing ammonia nitrogen in boiler flue gas desulfurization waste water, which comprises a coal-fired boiler and a sedimentation tank, the water inlet end and the bottom of the sedimentation tank are respectively connected with a waste water inlet pipe and a first sludge discharge pipe, and the coal-fired boiler is connected with a primary air inlet pipe and a secondary air inlet pipe. A flue gas outlet of the coal-fired boiler is sequentially connected with the SCR denitration device, the first dust remover, the gypsum method desulfurization device and the second dust remover through pipelines, a wastewater outlet of the sedimentation tank is connected with the ammonia stripping tower, the ammonia stripping tower is connected with a stripping gas inlet pipe, a stripping tower wastewater discharge pipe and a stripping tower waste gas discharge pipe, the stripping gas inlet pipe is connected to a primary air inlet pipe, and the stripping tower waste gas discharge pipe