Metallurgical apparatus – Means for melting or vaporizing metal or treating liquefied...
Patent
1998-04-14
1999-07-27
Kastler, Scott
Metallurgical apparatus
Means for melting or vaporizing metal or treating liquefied...
266900, 266901, C21C 100, C22B 700
Patent
active
059286024
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND OF THE INVENTION
(1) Field of the Invention
This invention relates to facilities for treating process metal wastes. More particularly, the invention relates to facilities for treating such industrial wastes as, far instance, the solid wastes resulting from hot zinc plating.
(2) Description of Related Art
Such a facility is known from the document U.S. Pat. No. 3,550,925. This document discloses a facility to process metal wastes including a heat-insulated casing, a melting drum with an outlet orifice and burners. The casing is set on supports in such a manner that its longitudinal axis is inclined relative to the support base. A melting drum is located inside the casing on a shaft in parallel with the casing base.
Further, tubular rotating type furnaces are known to provide the reducing roasting process under a temperature above 1000.degree. C. Such furnaces are about 14 m long and 1.2 m in diameter; the time needed to construct such furnaces is 2 years while they can be operated about 15 years (See M. V. Teslitskaya, E. S. Razgon. New methods of processing raw zinc materials used abroad/in Russian/. Moscow Central Research Institute for Nonferrous Metals, Economics and Information, 1984). Another drawback with this known facility consists of its considerable fuel/power consumption rate during the multistage process of metal winning from the wastes when conventional facilities are applied, and in complexity of the structures used.
BRIEF SUMMARY OF THE INVENTION
The object of this invention is to avoid the drawbacks related to the known facilities of this kind, and more particularly the object consists of achieving a simple design, reducing overall dimensions, making the operation and maintenance easier, increasing the output, accelerating the process and power-saving heat consumption (to process 1 t of wastes, 60 t of Diesel fuel is needed, and the process takes up to 3 hours providing recuperation of 800 kg of zinc). The object has been affected by a new facility which is characterized by removable reflectors provided on the inner surface of the casing, and by that the melting drum is removably set up on a shaft which is cantilever-supported at the end of the casing which is opposite to the door of the casing.
BRIEF DESCRIPTION OF THE DRAWINGS
FIG. 1 is a side view of the facility to process metal wastes of the present invention with heat-insulated casing (1) partically cut away and showing a partial cross-section of the melting drum.
FIG. 2 is view of the heat-insulated casing (1) of the facility to process metal wastes of the present invention taken along line A--A in FIG. 1.
DETAILED DESCRIPTION OF THE INVENTION
Thus, the facility according to the invention includes an inclined heat-insulated casing with a door and a cover, which can be displaced and, finally, removed. The inner surface of the casing is provided with removable sheets, forming the inner facing (reflectors) which are made of metal bead-formed sheets. Inside the casing, on the cantilever-supported shaft, is installed a melting drum, parallel with the sole, which can be mounted or removed from upon the shaft both charged and empty. The drum can be charged through the open cover when the casing door is open, while inside the casing it is kept installed on the shaft. A cross-shaped member for stiffening the drum is used also for mixing. The drum is heated via a burner while the heating is controlled with a temperature sensor and by means of an automatic control unit.
The casing of the facility according to the invention is heat-insulated and also provided with easily interchangeable and removable sheets of other inner facing in the shape of bead-formed metal sheets (reflectors). The drum is set on the cantilever-supported shaft thus making it possible to avoid the use of any stiffening belts and bearing rollers, ensuring prompt removal of the drum and its transportation to the charge area thus making it possible to avoid intermediary containers and to keep the drum capable to be charged while on. The casing has a door an
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Alexeev Alexander
Linnainmaa Jarkko
Mamedov Koshkar
Vlasov Vladimir
Kastler Scott
Linnainmaa Jarkko
Teknotyo-Metallurgia OY
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