RU1839195C - Method of melting sulfide concentrates in suspension - Google Patents

Description

(21) 4716156/02 (22) 04/11/89

(46) 12/30/93 Bul # 48-47

(71) State Design and Research Institute GIPRONIKEL

(72) R bko A G.; Galantsev V.N; Sat ndin S.V .; Steklov M.F .; Tserbatyuk Yu.S.; Kruchinin AA; Cornet JA (54) METHOD FOR SULFID CONCENTRATES MELTING IN THE WEIGHTED STATE (57) The invention relates to non-ferrous metallurgy and can be used for processing sulfide copper-nickel concentrates The purpose of the invention is to reduce the consumption of oxygen and carbon-containing reducing agent and to increase the recovery of nickel, cobalt and copper . The delivered circuit is achieved due to the fact that the dust is fed into the furnace zone at a speed of 10 150 m / s, and the place where the dust and gas stream enters from the reaction zone is 0.18 - 022 of its diameter and 025 - 0.3 of its diameter from restoration at a distance not less than 1.5 m from the side walls of the settling zone. 1 tab.

The invention relates to non-ferrous metallurgy and can be used for the processing of sulfide copper-nickel concentrates.

The purpose of the invention is to reduce the oxygen consumption of a carbon-containing reducing agent and to increase the recovery of nickel, cobalt and copper in matte.

EXAMPLE A pulverized sulphide material, together with quartz sand and blast with an oxygen content of 40-60%, is fed into a suspension smelting furnace through four charge burners. The charge charge ranges from 100 to 170 t / h. In the settling zone, reaction products are separated into slag and matte.

Particles of oxidized sulphide material that have not settled in the sump together with the exhaust gases enter the pharmacy, where sulfur dioxide is reduced

flue gas and dust sulfidization. Recovery is carried out with natural gases.

Separated dust is transported by pneumatic conveying 5 into the settling zone through the settler arch.

The results of the experiments are shown in the table,

0 Using the method will reduce oxygen consumption by 17 m per ton of processed concentrate, natural gas by 12 m per ton of concentrate, increase copper recovery by 6.7%. nickel

15 - by 7.5%, cobalt - by 8.4%.

(56) Technological instructions for the redistribution of suspended smelting furnaces of the nickel and copper lines of the smelter. Nadezhda Metallurgical Plant

20 Zaven tina. Norilsk, 1987, p. 54.

Table continuation

518391956

Claims (1)

The claims of the consumption of oxygen and carbon-containing The method of sulphide concentrator smelting and increasing suspended solids recovery, including nickel, cobalt, copper into matte, dust, submission of crushed materials, fluxes and are fed into the settling zone of the furnace at a speed of 10 oxygen-containing gas into the reaction 5 - 150 m / s, the place of entry of the dust and gas zone, the separation of the melting products in the flow zone is 0.18 deferred from the reaction zone, the carbon-containing feed 0.22 of its diameter and 0.25 0.3 of its reducing agent diameter into the reduction zone, away from the reduction zone by p ssto situations without division izothod dust boiling gases them from l a- less than 1.5 m from the side walls and the settling w u and in that, in order to reduce zone 10.