59results about "Reverberatory furnace" patented technology

The invention relates to a production line, mechanical equipment and a technique method for preparing high-grade zinc oxide by utilizing cast iron dust. The method for making the high-grade zinc oxide by utilizing the cast iron dust is characterized in that the traditional Webster furnace production line is modified, a cyclone dust collector of a unique structure is combined with a multi-stage cyclone dust collector to substitute part of cooling pipes of a Webster furnace, the cyclone dust collector as well as a fixed exhaust pipe and a movable exhaust pipe divided by an exhaust pipe cause the length of the exhaust pipe to be adjustable, the length of the exhaust pipe is adjusted by virtue of three sets of lead screws and nuts which are uniformly distributed, the lead screws are fixed on the movable exhaust pipe, and the nuts are fixed on the upper surface of the cyclone dust collector; a cooling water jacket is additionally arranged outside, so that separating and settling effects are achieved, and a cooling effect of a cooling pipe is also achieved. According to the method for making the high-grade zinc oxide by utilizing the cast iron dust, the cast iron dust is utilized, the high-grade zinc oxide is prepared according to a production technology process comprising briquetting, reducing, oxidizing, cooling, separating, settling, cooling and dust collecting, the content of zinc oxide is more than 98% and is increased by more than 10% compared with that of the zinc oxide produced by the traditional Webster furnace production line, the whiteness of the zinc oxide is also greatly improved, and the whiteness of the zinc oxide can be 93.

In the operation, a flux mainly composed of silica ore and a non-ferrous metal-ore raw-material are charged into a smelting furnace via a conveying system. In order to increase the production amount of the metal, the flux is conveyed and treated through a first system, in which the flux is crushed in a ball mill and dried in the bail mill, and the crushed and dried flux is conveyed directly before the smelting furnace. The non-ferrous metal ore is treated and conveyed through a second system, in which it is dried with a drier and then conveyed directly before the smelting furnace. In the drier of copper concentrate, the flux is not dried at all.

A method and system for the copper anode refining is provided in which coherent jet technology is employed to heat the molten blister copper and / or melt scrap copper charges using a melting flame, oxidize the sulfur in the molten blister copper, and reduce the oxygen in the molten blister copper using top-blown coherent jet gas streams from one or more multi-functional, coherent jet lance assemblies. The present system and method employs a microprocessor-based controller operatively controlling the flow of an oxygen-containing gas, an inert gas, a reducing agent and a fuel to the coherent jet lance. The disclosed copper anode refining system and method greatly improves copper production while lowering oxidation / reduction cycle times and minimizing NOx emissions.

The invention relates to a method for reducing coal consumption by cyclic utilization of waste heat of a Webster furnace. According to the method, heat generated by the exothermic reaction process is collected for the endothermic reaction process by means of the reaction principle of smelting zinc oxide by a direct method in production of the Webster furnace, so that heat is recycled, the use level of coal required for the endothermic process is reduced, the fuel coal and reducing coal required in the reaction process are saved, and the power consumption can be reduced by 30%. From the oxidizing chamber of the Webster furnace, cooling and settling processes of zinc oxide smoke are performed, and heat exchanged in the processes can be used for drying agglomerates. The agglomerates are prepared from mixtures of zinc-containing materials, coal and the like which are pressed to pellets through a ball press machine. Before the agglomerates enter into the hearth to be smelted, the agglomerates can be aired till the moisture is lower than 8%. By using the method, the drying time of the agglomerates can be accelerated, and the production efficiency is improved by over 10%.

The invention discloses a waste red miscellaneous copper refining agent and application thereof, and relates to the field of metal smelting. A waste copper refining agent, comprising chemical components in parts by weight: 3.8-5.3 parts of B, 4.0-4.8 parts of Mg, 8.5-11 parts of Ce, 6.5-7.5 parts of Pr, characterized in that it also includes chemical The parts by weight of the components are: 2-5 parts of Y and 2-5 parts of La. The application of a refining agent for waste red miscellaneous copper includes: adding waste red miscellaneous copper into a reverberatory furnace for smelting, and the reverberatory furnace adopts a combustion control system for heat supply, and the temperature of the control liquid is kept at 1155-1165°C; The copper liquid is removed, deoxidized, and purified; the purified copper liquid is placed in a standing furnace for standing still and then deoxidized. The advantages and beneficial effects of the present invention: Y and La elements are added to the refining agent formula for synergistic modification, and the prepared compound refining agent can improve the impurity removal effect of red copper; the thermal cycle design greatly reduces the time required for the process and shortens the reaction cycle.

A method for treating combustible material of the present invention includes providing a pipe opened to a molten substance surface above the molten substance surface of molten substance stored in a furnace body for smelting nonferrous metals, and blowing combustible material containing valuable metals and oxygen-enriched air into the molten substance surface of the molten substance from the pipe.

The invention discloses a refining furnace. Through the refining furnace, the pressure in a combustion furnace and reverberatory furnaces can be controlled accurately. According to the key points of the technical scheme of the refining furnace, the refining furnace comprises the combustion furnace and the multiple reverberatory furnaces arranged on the side face of the combustion furnace; the combustion furnace is connected with a main channel; an auxiliary channel is arranged between the main channel and the upper portion of each reverberatory furnace; the main channel communicates with an air draft assembly; valve assemblies matched in the auxiliary channels are arranged in the auxiliary channels; each valve assembly comprises at least two valves rotationally connected in the corresponding auxiliary channel; a plurality of pressure detection assemblies are arranged in the combustion furnace and the reverberatory furnaces; and the valve assemblies and the air draft assembly are connected with a control assembly controlling the valve assemblies and the air draft assembly to operate so as to keep the pressure in the combustion furnace and the pressure in the reverberatory furnaces within the set range.