Method for prolonging service life of spray gun head of metal smelting top-blown furnace

• Main Authors: WAN YONGGUANG, LI ZHILU, SONG GE, WANG MINGJIANG, YAN HANG
• Format: Patent
• Language: Chinese; English
• Published: 02.08.2024
• Subjects: BLASTING; CHEMISTRY; DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS,IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KINDOF FURNACE; FERROUS OR NON-FERROUS ALLOYS; FURNACES; HEATING; KILNS; LIGHTING; MECHANICAL ENGINEERING; METALLURGY; OVENS; PRETREATMENT OF RAW MATERIALS; PRODUCTION AND REFINING OF METALS; RETORTS; TREATMENT OF ALLOYS OR NON-FERROUS METALS; WEAPONS

The invention discloses a method for prolonging the service life of a spray gun head of a metal smelting top-blown furnace, and relates to the technical field of non-ferrous metal smelting. Meanwhile, in the smelting process, the silicate degree of slag is controlled to be 1.35-1.5, and the smelting temperature is 1100-1200 DEG C. According to the method, the furnace slag obtains proper viscosity and melting point, the slag adhering effect of the spray gun head is remarkably improved, and the temperature and atmosphere required in the furnace can be obtained by strictly controlling the air/coal ratio and the oxygen/coal ratio; the corrosion of the spray gun head caused by over-high temperature or the corrosion of tin to the spray gun head caused by poor slag-tin separation effect due to over-low temperature can be effectively reduced, slag bubbling and corrosion aggravation of the spray gun head caused by a large amount of generated magnetic Fe3O4 can be prevented, and the service life of the spray gun head o