Mitsubishi Materials Corporation

Nobuhiro Oguma

Makoto Takagi

Akiyoshi Yamashiro

Kiyoshi Fujiwara

Hiroaki Ikoma

Fumito Tanaka

Eiji Wajima

Shigeru Ishikawa

Shimpei Hirose

Yasuo Yasuda

Yuji Mizuta

Kazuya Syoji

Masatoshi Nakamura

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.

Method for treating combustible material and installation

A method of treating recyclable raw materials containing valuable metals is provided, the method including the steps of feeding recyclable raw materials (W) containing valuable metals into a rotary kiln furnace () in which a refractory product having an AlO&#x2014;CrOcontent of 70% or greater is used for an inner wall; feeding an additive (A) containing SiOas a major component into the rotary kiln furnace () so as to increase a viscosity of a slag (S) flowing along the inner wall, thereby the recyclable raw materials (W) are attached on the slag (S) having a high viscosity such that at least part of the recyclable raw materials (W) is exposed to the inside of the rotary kiln furnace; and burning/melting the recyclable raw materials (W) attached on the slag (S) in the rotary kiln furnace ().

Method of treating recyclable raw materials

Provided is a sampling method of recycled raw material, the method including: a process (S) of primarily crushing recycled raw material; a process (Sto S) of separating primarily crushed raw material into three components, 'scrap iron', 'scrap aluminum', and &#x201c;recycled raw material component other than scrap iron and scrap aluminum&#x201d; and performing primary sample reductions of the three components; a process (Sto S) of secondarily crushing &#x201c;the recycled raw material component other than scrap iron and scrap aluminum&#x201d;, which is subjected to the primary sample reduction, and performing a secondary sample reduction of &#x201c;recycled raw material component other than scrap iron and scrap aluminum&#x201d; which is secondarily crushed; and a mixing process (S) of mixing &#x201c;scrap iron&#x201d; and &#x201c;scrap aluminum&#x201d; with &#x201c;the recycled raw material component other than scrap iron and scrap aluminum&#x201d; which is subjected to the secondary sample reduction.

Sampling method and sampling device of recycled raw material, analysis sample of recycled raw material, and evaluation method of recycled raw material

A metallurgical furnace installation for use in copper-smelting process is disclosed which includes a metallurgical furnace, a charging assembly for introducing anode scrap into the furnace through an opening, and an impingement-preventing device attached to the charging assembly for preventing the anode scrap from impinging on a furnace bottom upon charging, whereby the furnace bottom will not be damaged. The impingement-preventing device may be a turning mechanism attached to a chute for turning the anode scrap being introduced, or may be a bending press for bending a leading end of the anode scrap. Additionally, a method for charging anode scrap into a metallurgical furnace of a copper smelting installation is also disclosed.

Metallurgical furnace installation for use in copper smelting process

An apparatus for charging anode scrap into a converting furnace in a continuous copper smelting line without impairing the heat balance of the furnace. Anode scrap is moved into the opening of a chute by means of a charging mechanism. An outer shutter of the furnace is opened and an inner shutter is closed. After closing the outer shutter the inner shutter is opened and anode scrap is charged into the converting furnace. The operation is continuously repeated as the anode scrap is continuously conveyed into the converting furnace. The temperature of the furnace is maintained substantially constant since it is not exposed to ambient air temperature.

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Tokyo, Japan

Nobuhiro Oguma