Furnace continuous refining of magnesium |
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IPC classes for russian patent Furnace continuous refining of magnesium (RU 2228964):
 Method and device for the production of gallium from waste semiconductor gallium phosphide / 2226563
The invention relates to the technology of waste processing semiconductor of gallium phosphide to extract expensive and scarce gallium
 Furnace for refining magnesium / 2222623
The invention relates to metallurgy, in particular to the furnaces for refining magnesium
 Melting and casting device for producing small castings / 2211419
The invention relates to foundry and can be used for small castings of high-level radioactive metals and alloys, particularly dentures and jewelry
 Laboratory oven for optical research / 2202747
 The device for preparation and analysis of samples of liquid alloys / 2174207
The invention relates to metallurgy, and is intended for receipt and analysis of samples of liquid alloys in the laboratory of metallurgical processes on the surface of the alloy and may find application in research laboratories
 The method and apparatus of the infiltration of gas phase chemical substances and chemical vapor deposition (options), the product obtained in this way, the feeder of the first of a reagent gas into the furnace for infiltration and deposition from the gas phase and the friction disk / 2173354
The invention relates to high-temperature composite materials obtained by the infiltration of gas phase chemical substances and deposition of matrix binder material in the porous structure of the
 The setup for studying objects at high temperatures / 2149330
The invention relates to test equipment and can be used to test objects containing explosives and toxic substances, at different heat exposure, including fires
 Installation of a wet-type flue gas desulfurization and the usage of solid substances obeserver / 2140809
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
 Method of refining iron alloys with more easily oxidizable elements / 2224028
The invention relates to ferrous metallurgy, and more specifically to methods of smelting in electric arc furnace steel alloy or the intermediate product to obtain
Furnace for refining magnesium / 2222623
The invention relates to metallurgy, in particular to the furnaces for refining magnesium
Flux for refining and protection from burning magnesium and its alloys / 2217512
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
 Method of refining copper and copper based alloys / 2185455
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
 The method of treatment of concentrates of precious metals / 2180008
The invention relates to the metallurgy of noble metals (BM) and can be used in the processing of concentrates BM on the basis of oxides of silicon and palladium
 A method of obtaining modified silumins / 2177048
The invention relates to ferrous metallurgy and can be used in the manufacture of modified silumins, alloyed with copper, magnesium, titanium and zirconium
 The method of melting a rough gold / 2173725
The invention relates to pyrometallurgy and can be used in the purification of crude concentrates of precious metals from impurities
Furnace for refining magnesium / 2222623
The invention relates to metallurgy, in particular to the furnaces for refining magnesium
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The invention relates to ferrous metallurgy, in particular to a device for refining magnesium. The proposed furnace continuous refining of magnesium containing arch, cover with lined bathroom with electrodes installed inside the bell with two pipes with removable craters and refining chamber, and the bell has a Central vertical channel and vertical, radially spaced ribs, between the two of them made the bottom, and the other fins are with the formation of the labyrinth for refining magnesium. The technical result is an increase furnace productivity and improve the quality of refined magnesium. 2 Il.
The invention relates to ferrous metallurgy, in particular to a device for refining magnesium.
Known furnace continuous refining of magnesium (patent of Russia №2092760 from 05.09.95). This oven has lined the tub with electrodes and a bell mounted on the posts lined tub. The furnace is covered by a vault. Bell has one Central nozzle. Bell and tub placed coaxially to each other, made of cylindrical shape with the ratio of their diameters (0,8-0,9):1, while the pipe is CL2; 30% NaCl; 50% KCl). Refining magnesium raw is due to its leaching in heating the electrolyte bath solution. Input magnesium raw is made through a long pipe with a funnel, and the conclusion of magnesium refined through a short pipe with a funnel. Both pipes are installed in the Central nipple 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 of the electrolysis bath (5-10% MgCl2, 20-30% NaCl, the basis KCl), which dilutes the heating of the electrolyte. This reduces the concentration of barium chloride (BaCl2), which increases the density of the heating of the electrolyte. Lowering the concentration BaCl2in the heat the electrolyte to produce the adjustment on l1. The adjustment of the electrolyte is carried out at the stop of the furnace, consequently, its performance is significantly reduced.
Another disadvantage of the described furnace is low quality refined magnesium, which is not suitable for casting on the conveyor into ingots due to the high content in magnesium chloride. The high content of chlorides in refined magnesium occurs in the result of the expression.
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. "the Refining and casting of primary magnesium, M.: metallurgy, 1974, S. 36-42. Furnace continuous refining of magnesium contains a casing lined with bathtub rectangular shape with a refining chamber with a bottom and the mold chamber with a bottom and foundry camera without a bottom. Bell has two nozzles, one of which is poured through a funnel into the camera refining magnesium raw with electrolyte electrolysis baths and refinished in this chamber due to the sludge from the electrolyte, the oxide and nitride inclusions. During the subsequent casting of magnesium raw settled and heated magnesium flows in a mold chamber and selected from the bell through the truncated funnel. Heating Poland by using the electrolyte and electrodes. The heating composition of electrolyte: 8-15% MgCl2; 5-7% l2; 8-12% NaCl and 60-70% KCl.
Because the electrolyte electrolysis baths come with magnesium raw, remains in the refining chamber, the dilution heat of the electrolyte being selected from Poland magnesium is not contaminated by chlorides. However, the quality of rafinirovannogo 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 significantly reduces the productivity of the furnace continuous refining of magnesium.
Technical results of the present invention are to increase the productivity of the furnace continuous refining of magnesium and improve the quality of refined magnesium.
Technical results achieved by the fact that in the furnace of the continuous refining of magnesium containing arch, cover with lined bathroom with electrodes installed inside the bell with two pipes with removable craters and refining camera, what's new is that the bell is made with a Central vertical channel and vertical, radially spaced ribs, between the two of them made the bottom, and the other fins are with the formation of the labyrinth for refining magnesium.
Location in the center of Colona, i.e., to significantly improve the productivity of the furnace. In addition, when cleaning a panorama from the slurry flowing through the Central vertical channel the air is not in contact with magnesium, so magnesium is not contaminated with oxides and nitrides. Fixed to the Central vertical channel vertical radiating ribs improves the performance of the furnace by increasing the life of the bell to create a maze of these edges, which increases the path for refining magnesium heating the electrolyte, which increases the quality of magnesium, reduces the content of nitrides and oxides of magnesium, because the electrolyte wets suspended in magnesium MgO and Mg3N2and removes them from him.
Regular removal of sludge from the bottom panorama allows you to contain the heat (refining) the electrolyte is pure oxides and nitrides of magnesium, which increases its refining capacity, which improves the quality of refined magnesium.
The location between two ribs of the bottom allows to solve the question of the rigidity of the bells and creating camera refining magnesium raw from the electrolyte by electrolysis baths sludge. The rigidity of the bell increases its service life and performance of the NDP as a whole. POPs the Oia increase furnace productivity and improve the quality of refined magnesium oxide, nitrides and chlorides.
Furnace continuous refining of magnesium is shown in Fig.1 and 2. The furnace consists of a casing 1 of cylindrical shape, lined bath with 2 electrodes 3 and bearings 4 with bell 5 has a cylindrical shape with two pipes 6 and 7. Through the pipe 6 with a removable funnel 8 is poured magnesium raw. Through the pipe 7 with a removable funnel 9 choose the magnesium refined under vacuum bell bucket. Bell 5 provided with a Central vertical channel 10 with the vertical, radial ribs 11 with peritonei channels 12 and shortened ribs 13 with peritonei channels 14. Between the two ribs 11, the bell is provided with a bottom 15 so as to form a refining (casting) camera 16. Shortened ribs 13 with peritonei channels 14 form a maze through which flows rathinasamy magnesium nozzle 7 for a sample of refined magnesium from Poland with a pump. Top NDP closed vault 17 with holes 18 and 19 for casting 6 and sample 7 nozzles and with a hole 20 for cleaning the bottom 21 Poland from cuttings clamshell closed during operation of the panorama of the tube 22. Under the bell 5 is magnesium, and around him - heating the electrolyte (10-18% MgCl2; 10-20% NaBub> and from inclusions of chlorides.
On day 15 refining chamber 16 is an electrolyte electrolysis baths, arrived in Poland with magnesium-raw. The composition of the electrolyte: 5-10% MgCl2; 20-30% NaCl; the basis - KCl.
Furnace continuous refining of magnesium operates as follows. In lined tub 2 with the casing 1 of cylindrical form is filled with 10 t of the electrolyte of the following composition: 15% MgCl2; 18% NaCl 15% NaBr; 52% KCl and install coaxial cylindrical bell 5 on the supports 4, the furnace is closed arch 17 and serves on the electrodes 3 AC. After heating of the electrolyte in the oven up to 720 With the camera 16 of the bell 5 servings 2 t pour 6 tons of magnesium raw through removable filling funnel 8, installed in lad 6. In casting (refining) the chamber 16 formed by the ribs 11 with peritonei Windows 12 and a bottom 15, rests from magnesium electrolyte electrolysis baths (5-10% MgCl2; 20-30% NaCl2and KCl - base). When receiving the next portion of the metal heated in a furnace up to 700With magnesium flows through window 12 in the intercostal space, washed heating the electrolyte from oxides and nitrides of magnesium, as well as inclusions of chlorides and through peritonei window 14 short ribs jetcost the refines. Further, the magnesium passes through peritonei channels 14 of the last ribs 13 and falls under the selective nozzle 7. Sucks magnesium in Poland after the last fill magnesium lasts 20 min, after which the refined magnesium through pipe 7 to choose from Poland with a pump. Periodically 1 time per shift from the refining chamber 16 choose a vacuum ladle accumulated electrolyte electrolysis baths come with magnesium-raw. Once a week through the Central vertical channel 10 select the sludge from the bottom 21 a panorama of the grapple. This does not require the full sample of magnesium from under the bell, and retrieve the bell from Poland. Therefore, significantly improves the performance of the inventive furnace compared with the prototype, as in the famous invention of the sludge with the bottoms removed after removing the bell from the oven. In addition, the Grappler who cleans the furnace hearth 21 from cuttings is not in contact with magnesium and got into a panorama of the air does not oxidize the magnesium to MgO and Mg3N2that allows you to improve the quality of magnesium.
Formed by the ribs 11 and 13 with peritonei Windows 12 and 14 the maze allows you to create a better contact of the magnesium with the heating of the electrolyte, which clears the magnesium from the nitrides and oxides. Moistened heating the electrolyte MgO and Mg3Nwhich IFurnace continuous refining of magnesium containing arch, cover with lined bathroom with electrodes installed inside the bell with two pipes with removable craters and refining chamber, characterized in that the bell has a Central vertical channel with vertical radial ribs, between the two of them made the bottom, and the other fins are with the formation of the labyrinth for refining magnesium.
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