Nitrogen recovery system for calcium carbide furnace

• Main Authors: HUI XIAOPENG, QU HAIFEI, GUO SHENGRONG, MENG HAODONG, GAO PENG, GUO PENG, SUN JIANGPENG, WANG XUEJIAN, JIANG BO
• Format: Patent
• Language: Chinese; English
• Published: 21.07.2023
• Subjects: CONVEYING; HANDLING THIN OR FILAMENTARY MATERIAL; PACKING; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; PNEUMATIC TUBE CONVEYORS; SEPARATION; SHOP CONVEYOR SYSTEMS; STORING; TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING ORTIPPING; TRANSPORTING

The utility model provides a nitrogen recovery system for a calcium carbide furnace. The nitrogen recovery system comprises a large stock bin, a bin top separator, a precooler, a dust removal filter, a low-pressure nitrogen storage tank, an automatic discharge valve group, a first filter, a main compressor, a standby compressor and a high-pressure nitrogen storage tank, nitrogen in the large stock bin is finally collected into the high-pressure nitrogen storage tank in a centralized mode, the recycled nitrogen can be used for blowing purified ash again, cyclic utilization of the nitrogen is achieved, nitrogen resources are saved, and the problem that in the prior art, after the purified ash is conveyed to the large stock bin through nitrogen, the nitrogen resources are wasted is solved. 本实用新型提出了电石炉氮气回收系统，其包括大料仓、仓顶分离器、预冷器、除尘过滤器、低压氮气储气罐、自动排放阀组、第一过滤器、主压缩机、备用压缩机和高压氮气储气罐。本实用新型将大料仓内的氮气最终集中收集至高压氮气储气罐内，回收后的氮气可用于再次吹送净化灰，实现氮气的循环利用，节约了氮气资源，解决了现有技术中氮气将净化灰输送至大料仓之后，造成氮气资源浪费的问题。