Large cover for preventing condensed magnesium from gathering in titanium sponge production

Abstract

A large cover for preventing condensed magnesium from gathering in titanium sponge production comprises a barrel arranged on the upper portion of a bottom plate, and a center channel pipe, an inner heater and a heat preservation layer are arranged on the bottom plate in the barrel. A panel is arranged at the upper part of the barrel; the bottom plate, the cylinder body, the panel and the central channel pipe form a closed space; a conductive rod sleeve is arranged on the panel, a conductive rod is arranged in the conductive rod sleeve, a heater is arranged at the lower end of the conductive rod, and the heater is arranged on the inner side face of the barrel; the heater is arranged on the upper portion of the bottom plate. When sponge titanium is subjected to reduction distillation production, the barrel with the large cover is heated, so that the temperature of a gap between the inner wall of the reactor and the barrel with the large cover is increased, and the technical problem of low gap temperature during distillation is solved. When sponge titanium is distilled, the temperature of the gaps is increased, so that magnesium steam is not condensed at the gaps and enters the condensation tank, and the production cost is saved. And the labor intensity of operators is reduced. The structure is simple and durable.

Description

Technical Field

[0001] The invention relates to a production device for titanium sponge, in particular to a large cover used for preventing condensed magnesium from agglomerating during titanium sponge production. Background Art

[0002] Sponge titanium production adopts the Klauer process, using molten metal magnesium to reduce titanium tetrachloride to obtain titanium and magnesium chloride in a closed container composed of a reactor and a large cover. Before the reduction distillation process, the reactor, large cover and sieve plate are assembled first, and the sieve plate is installed at the bottom of the reactor, and the large cover is set on the top of the reactor to assemble into a closed space. Liquid metal magnesium is used to reduce liquid titanium tetrachloride to obtain solid sponge titanium and liquid magnesium chloride. The magnesium chloride is discharged from the reactor on time, and the sponge titanium accumulates on the sieve plate to form a titanium sponge lump. After the reduction production is completed, the magnesium chloride, magnesium and other impurities in the titanium lump are removed by high-temperature and high-vacuum distillation to obtain pure sponge titanium. The large cover is mainly composed of an inner heater, a panel, a cylinder, a bottom plate, a vacuum channel tube and an insulation layer. The inner heater, the panel, the cylinder, the bottom plate and the reactor form a closed space. During assembly, the cylinder of the large cover must be extended into the reactor. To facilitate assembly, there is a certain gap around the inner wall of the reactor and the cylinder of the large cover. During distillation, due to the low temperature of the gap, a large amount of magnesium vapor and a small amount of magnesium chloride condense in the gap to form a mixture of magnesium blocks and magnesium chloride. After the distillation is completed, the operator needs to peel off the condensed magnesium with a pneumatic pick, which increases the labor intensity of the operator. The magnesium blocks are treated as waste, resulting in waste of resources and increased production costs. Summary of the invention

[0003] The invention aims to solve the technical problem that there is a certain gap between the inner wall of the reactor and the cylinder of the large cover, and the low temperature of the gap during distillation causes magnesium condensation.

[0004] In order to solve the above technical problems, the present invention adopts the following technical solutions: A large cover used to prevent the accumulation of condensed magnesium in the production of titanium sponge, comprising a cylinder on the upper part of the bottom plate, a central channel tube, an internal heater and a thermal insulation layer on the bottom plate in the cylinder; a panel on the upper part of the cylinder; the bottom plate, the cylinder, the panel and the central channel tube form a closed space; a conductive rod sleeve is provided on the panel, a conductive rod is provided in the conductive rod sleeve, a heater is provided at the lower end of the conductive rod, and the heater is on the inner side of the cylinder; The number of the conductive rod sleeves is 2; The number of the conductive rods is 2; The heater is located on the upper part of the bottom plate. The beneficial effects of the above technical solution are: 1. The present invention realizes heating the cylinder of the large cover during the reduction distillation production of sponge titanium, so that the temperature of the gap between the inner wall of the reactor and the cylinder of the large cover is increased, thereby solving the technical problem of low gap temperature during distillation.

[0005] 2. The present invention realizes that the temperature of the gap is increased during the distillation of sponge titanium, so that the magnesium vapor does not condense in the gap, and the magnesium vapor enters the condensation tank, thereby saving production costs.

[0006] 3. This method reduces the labor intensity of operators.

[0007] 4. The present invention has a simple structure and is durable. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 It is a schematic diagram of the front view of a large cover used in the production of titanium sponge to prevent the accumulation of condensed magnesium.

[0009] In the figure: 1-bottom plate, 2-cylinder, 3-panel, 4-conductive rod sleeve, 5-conductive rod, 6-heater, 7-insulating layer, 8-center channel tube, 9-internal heater. DETAILED DESCRIPTION

[0010] The present invention is further described in detail below in conjunction with the accompanying drawings, but it should not be understood that the scope of the subject matter described in the present invention is limited to the following embodiments. Without departing from the above-mentioned technical ideas of the present invention, various modifications, substitutions and changes made according to the common technical knowledge and customary means in the field are included in the scope of the present invention.

[0011] A large cover for preventing condensed magnesium from gathering in titanium sponge production comprises a cylinder 2 provided on the upper part of a bottom plate 1, a central channel tube 8, an internal heater 9 and a thermal insulation layer 7 provided on the bottom plate 1 in the cylinder 2; a panel 3 provided on the upper part of the cylinder 2; the bottom plate 1, the cylinder 2, the panel 3 and the central channel tube 8 form a closed space; a conductive rod sleeve 4 is provided on the panel 3, a conductive rod 5 is provided in the conductive rod sleeve 4, a heater 6 is provided at the lower end of the conductive rod 5, and the heater 6 is on the inner side of the cylinder 2; The number of the conductive rod sleeves 4 is 2; The number of the conductive rods 5 is 2; The heater 6 is located on the upper part of the bottom plate.

[0012] When the titanium sponge enters the distillation, the central channel tube 8 is connected to the cold end system, and the vacuum pump is started in the cold end system. The conductive rod 5 is connected to the power system and powered. When the heater 6 reaches the distillation control temperature, the temperature of the gap between the inner wall of the reactor and the cylinder 1 of the large cover is increased, and the magnesium vapor will not condense here. The magnesium vapor enters the cold end through the central channel tube 8 for condensation and collection.

[0013] The present invention realizes heating the barrel of the large cover during the reduction distillation production of sponge titanium, thereby increasing the temperature of the gap between the inner wall of the reactor and the barrel of the large cover, and solving the technical problem of low gap temperature during distillation.

[0014] Save production costs and reduce labor intensity of operators.

Claims

1. A large cover for preventing condensed magnesium from gathering in titanium sponge production, comprising a cylinder (2) provided on the upper part of a bottom plate (1), a central channel tube (8), an internal heater (9) and a thermal insulation layer (7) provided on the bottom plate (1) inside the cylinder (2); a panel (3) provided on the upper part of the cylinder (2); the bottom plate (1), the cylinder (2), the panel (3) and the central channel tube (8) forming a closed space; characterized in that: A conductive rod sleeve (4) is provided on the panel (3), a conductive rod (5) is provided inside the conductive rod sleeve (4), a heater (6) is provided at the lower end of the conductive rod (5), and the heater (6) is located on the inner side surface of the cylinder (2); The number of the conductive rod sleeves (4) is 2; The number of the conductive rods (5) is 2; The heater (6) is located on the upper part of the bottom plate.

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