Furnace for refining magnesium |
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IPC classes for russian patent Furnace for refining magnesium (RU 2222623):
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 The setup for studying objects at high temperatures / 2149330
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The invention relates to an apparatus and method of the wet-type desulfurization of flue gases, and in particular, to the installation of a wet-type desulfurization of flue gases and to a method of use of solid obeserver substances for economical removal of oxides of sulfur in the combustion gases leaving the combustion equipment such as boilers, with high quality desulfurization, less abrasion of the pump for circulating the absorbing fluid and a nozzle for spraying a smaller deterioration in the quality of the product because of the aluminum and fluorine components in the absorbing fluid, reduced capacity for crushing hard obestsenivaya substances such as limestone, and excellent handling on changes in the amount of exhaust gas or the concentration of SO2
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The invention relates to non-ferrous metallurgy, in particular to the preparation of magnesium and its alloys
Flux for aluminum and its alloys / 2203337
The invention relates to ferrous metallurgy, in particular to foundry and processing of secondary aluminum raw material, and relates to compositions of fluxes for machining aluminum and its alloys
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The invention relates to the field of metallurgy of non-ferrous metals, namely, production of copper and copper alloys
 Flux for refining copper and copper based alloys / 2185454
The invention relates to the field of metallurgy of non-ferrous metals, concerns fluxes used in the smelting of copper and copper alloys
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The invention relates to ferrous metallurgy and can be used in the manufacture of modified silumins, alloyed with copper, magnesium, titanium and zirconium
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A method of processing plutonium / 2171306
The invention relates to a method for processing plutonium with obtaining refined metal for the production of reactor fuel energy purposes
The method of extraction of precious metals, in particular silver from waste / 2171301
The invention relates to metallurgy and can be used for the recovery of precious metals, particularly silver, recycled, namely e-waste materials
A method of producing magnesium from synthetic carnallite / 2218452
The invention relates to the field of metallurgy of non-ferrous metals, in particular the production of magnesium by electrolysis of the molten chloride
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The invention relates to metallurgy, in particular to the furnaces for refining magnesium. Effect: increase furnace productivity and quality magnesium. Furnace for refining magnesium includes arch, cover with lined bathroom with electrodes inside of which is the bell with the sockets and the camera with the bottom, and a funnel for input magnesium and output of refined magnesium. To achieve a technical result of the tub and the bell is made of cylindrical shape and is installed coaxially, the bell is provided with a partition wall, the height of which is 0.5-0.8 height bells, forming a maze with the wall of the chamber with a bottom and a funnel for output of refined magnesium installed after the maze in the Central pipe bells. 1 Il.
The invention relates to ferrous metallurgy, in particular to a device for refining magnesium, used as a trademark metal bullion.
Known furnace for refining magnesium (patent of Russia 2092760 from 05.09.95 year ). This oven has lined the tub with the electrodes, the supports for the bell and closed vault. Bell has one Central nozzle. Bell and tub placed coaxially to each other, made of cylindrical form with with whom.
In this furnace heated electrolyte (10% MgCl2; 10% BaCl2; 30% NaCl; 50% KCl) and electrodes. Refining magnesium raw is due to the leaching of magnesium in the heat of the electrolyte bath solution. Input magnesium raw is produced through a long funnel, and the conclusion of magnesium refined through a short funnel. Funnel installed in the main pipe bells. Cleaning the bottom of the sludge is made through the Central pipe bells.
The disadvantage of this furnace is low productivity due to the fact that magnesium raw enters the electrolyte electrolysis baths (10% MgCl2; 30% NaCl; 60% KCl), which dilutes the heating of the electrolyte. This reduces the concentration of barium chloride (l2), which increases the density of the heating of the electrolyte and improves the separation of magnesium from him. Lowering the concentration l2in the heat the electrolyte to produce adjustments. Because there is a strong dilution of heating of the electrolyte, there is a need for frequent adjustments of contents l2. The adjustment is carried out at the stop of the furnace, consequently, its performance is significantly reduced.
Another disadvantage of the described furnace is low quality is that magnesium chloride. Increased chlorine refined magnesium occurs when the decrease in the content l2in the heat of the electrolyte, as it is difficult to capture the moment of reduction of its content. This oven is suitable for magnesium production of titanium sponge, which allows high content of chlorides in the refined magnesium.
Therefore the closest to the claimed device is a furnace for the continuous refining of magnesium (Poland), described in the book Vyatkina I. P., Kechina C. A. , Moskova S. C. Refining and casting of primary magnesium. M.: metallurgy, 1974, S. 36-42. The NDP includes a casing lined with bathtub rectangular shape with the arch, which is the bell also of rectangular shape with a refining chamber with a bottom and a mold without a bottom. Bell has two nozzles, one through a funnel filled in the chamber of refining magnesium raw with the electrolyte of the electrolytic bath and refinished in this chamber by sedimentation from this electrolyte, the oxide and nitride inclusions. During the subsequent casting of magnesium raw settled magnesium flows in a mold chamber and selected from the bell through the truncated funnel. The heating furnace is carried out with the help of the electrolyte and electrodes. The composition of the heating ionirovanii camera the dilution heat of the electrolyte does not occur, and select from the oven magnesium is not contaminated by chlorides. However, the quality of refined magnesium oxide (MgO) and nitrides (Mg3N2) magnesium is not very high, because the cleaning magnesium raw is only defending. It is known that small particles of MgO and Mg3N2magnesium cannot be cleaned by settling within, for example, 30 minutes And longer sucks wasted due to a significant decrease in the performance of the furnace.
Described furnace has a low performance, since the sludge from the bottom of the furnace may be removed only when removing the bell, and this is a very lengthy operation, which reduces the productivity of the furnace.
Technical results of the present invention are to increase its productivity and quality magnesium.
Technical results achieved by the fact that in the furnace refining of magnesium, including arch, cover with lined bathroom with electrodes, inside which is mounted a bell pipe and chamber with a bottom and a funnel for input magnesium and output of refined magnesium, it is new that tub, and a bell made of cylindrical shape and is installed coaxially, the bell is equipped with negotiating the and output of refined magnesium installed after the maze in the Central pipe bells.
Execution lined tubs and bells of cylindrical shape mounted coaxially with the Central pipe, can significantly improve the productivity of the furnace, since the sludge from the bottom may be removed through the Central tube, without removing the bell uniformly throughout the furnace hearth.
Regular and uniform removal of the sludge from the bottom allows you to maintain the heat (refining) the electrolyte is pure oxide and nitride inclusions, which increases its refining capacity. Which improves the quality of the refined magnesium.
The supply of a bell wall, the height of which is 0,50-0,80 height, bells, education between the wall of the chamber and the wall of the maze and the output of refined magnesium after it allows you to increase the path of magnesium passing through heating (refining) electrolyte. The increase in path of magnesium through the electrolyte enhances the clearance of magnesium from the oxide and nitride inclusions electrolyte and removing them from magnesium.
Since moving the magnesium through the maze less time consuming process than defending, the performance of the inventive furnace higher.
Therefore, all the characteristics of the claimed invention sbosobstviyam.
Furnace for the refining of magnesium is shown in the drawing. The furnace consists of a casing 1 of cylindrical shape, lined bath with 2 electrodes 3 and bearings 4, which is the bell 5 cylindrical pipe 6 to fill in the chamber 7 magnesium raw through the funnel 8, with a partition 9, which with the wall 10 of the chamber 7 forms a labyrinth; with the Central pipe 11, in which is mounted a funnel 12 to output the refined magnesium and through pipe 11 cleaning the bottom 13 of the furnace from cuttings. The furnace is closed vault 14. Under the bell is magnesium, and around it and in the lower part of the bell - heating the electrolyte (MgCl2- 12-18%; NaCl - 18-20%; NaBr - 10-20%; KCl - base), which is and refinement.
Furnace for refining magnesium works as follows. In lined tub 2 with the casing 1 of cylindrical form is filled with 20 tons of electrolyte (15% MgCl2; 18% NaCl; 15% NaBr; 52% KCl) and install coaxial cylindrical bell 5 on the supports 4, serves an alternating current to the electrodes 3, the furnace is covered with a vault of 14 in the pipe 6 install the funnel 8 for input magnesium, which enters the chamber 7. In the pipe 11 install the funnel 12 to output the refined magnesium. After reaching in the oven melt temperature 700oWith the push-rod chamber 7 is th electrolyte, loaded with him. Magnesium from the chamber 7 through the maze between the wall 10 and the partition wall 9 (which has a height of 0.6 of the height of the bell) passes through heating the electrolyte fills the upper part of the bell 5. Magnesium passing through the maze, clears heat (refining) electrolyte from oxides and nitrides of magnesium, and from the remnants of the electrolyte electrolysis baths, which inevitably enters the furnace refining with magnesium-raw. By increasing the path of magnesium through heating the electrolyte and the duration of its contact with the electrolyte increases the cleaning efficiency of magnesium from impurities, which increases the quality of the refined magnesium and reduces the content of oxides, nitrides of magnesium and chlorides of other metals.
Such leaching of magnesium electrolyte accelerates the process of refinement compared to the refining of magnesium sludge, i.e., increases the productivity of the furnace.
One of the main conditions for effective cleaning of magnesium raw from impurities of oxides, nitrides and chlorides is the heating rate and holding at a constant temperature (for example, 700oC) the whole mass rafinirovannogo magnesium raw. In this furnace design round shape with camera 7 and the labyrinth between the local, that increases the productivity of the furnace continuous refinement and quality of refined magnesium.
Thus, by changing the design of the furnace increase its productivity and quality of refined magnesium.
Claims Furnace for refining magnesium, including arch, cover with lined bathroom with electrodes, inside which is mounted a bell pipe and chamber with a bottom and a funnel for input magnesium and output of refined magnesium, characterized in that tub, and a bell made of cylindrical shape and is installed coaxially, the bell is provided with a partition wall, the height of which is 0.5-0.8 height bells and forming a labyrinth with the wall of the chamber with a bottom and a funnel for output of refined magnesium installed after the maze in the Central pipe bells.
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