CN211284489U

CN211284489U - Connecting device for large-cover passageway during titanium sponge distillation production

Info

Publication number: CN211284489U
Application number: CN202020035871.8U
Authority: CN
Inventors: 张履国; 李斗良; 舒煜; 陈太武; 曹海国; 李金泽; 刘建国; 蔡增新
Original assignee: Zunyi Titanium Industry Co Ltd
Current assignee: Zunyi Titanium Industry Co Ltd
Priority date: 2020-01-08
Filing date: 2020-01-08
Publication date: 2020-08-18
Anticipated expiration: 2030-01-08

Abstract

A connecting device for a large-cover passageway during the distillation production of titanium sponge comprises a flange hole (1), a long groove (2) and a concave groove (3), wherein the concave groove (3) is annular and is arranged at the central position of one side of the connecting device, and an asbestos rope is arranged in the concave groove; the connecting devices positioned at the upper side and the lower side of the concave groove (3) are respectively provided with a long groove (2) in which a sealing ring is arranged; six flange holes (1) are uniformly distributed on the circumference. The utility model overcomes the welding quality problem of the large cover passageway, reduces the air inlet probability of the product and improves the production quality of the titanium sponge; compared with the prior art, the passage device of the utility model has the advantages that the passage device is connected, the production period is shortened by 15 hours, and the argon consumption and the power consumption cost are reduced; adopt the utility model discloses welding connection is replaced to passageway device flange joint, reduces welding workman intensity of labour.

Description

Connecting device for large-cover passageway during titanium sponge distillation production

Technical Field

The utility model relates to a device for producing titanium sponge, in particular to a connecting device for a large-cover passage during the distillation production of titanium sponge.

Background

At present, the industrial production of titanium sponge at home and abroad adopts a method for reducing titanium tetrachloride by magnesium. The method comprises the steps of adding liquid magnesium into a reactor, continuously adding titanium tetrachloride to react with the liquid magnesium to obtain granular titanium, slowly forming titanium sponge lump, distilling to remove a small amount of magnesium and magnesium chloride in the titanium lump after the reduction charging production is finished, and adopting a distillation furnace type mode to comprise a series furnace and a parallel furnace (an inverted U-shaped combination method), wherein the parallel furnace is shown in figure 2. In the reduction distillation production process, most furnace types are produced by adopting an inverted U-shaped combined method, and the method has the advantages of large yield, high qualification rate, low energy consumption, low labor cost and the like compared with a small single furnace. In order to improve the production quality of the titanium sponge and reduce the production cost, the large-scale equipment is taken as a technical development direction in all countries. The combined furnace parallel furnace is just beside the reduction production furnace, and is connected with a cold end reaction tank which is the same as a hot end system through a passage arranged on a large cover and is used as a container for collecting magnesium and magnesium chloride. However, in the prior art, a welding connection mode of a hot end large cover aisle and a cold end large cover aisle is adopted. When the two channels are connected by welding, in order to prevent the inlet gas of the hot-end titanium sponge lump from being polluted, argon gas must be continuously filled into the hot-end reactor for protection, the argon gas flows out from the pressure relief port for 3 hours, the welding time is long, the argon gas is wasted, and the possibility of polluting products by the inlet gas is also caused; welding quality also affects production time and product distillation quality, for example, fine pores are generated during welding, an unobvious leakage point is generated during high-temperature high-vacuum distillation, and the vacuum degree of a closed system is not ideal, so that the product is slowly fed, and the quality is affected. If the leakage point is obvious, the distillation vacuum degree and the product quality are seriously influenced, production has to be stopped, the passageway is re-welded when the temperature is reduced from 880 ℃, the high negative pressure of the hot-end reactor and the high negative pressure of the cold-end reactor are filled into positive pressure before welding, argon is wasted again, the labor intensity of welding workers is increased, the production period is influenced, after re-welding, the process is pumped out again, the temperature is raised to meet the process control requirement for distillation, the power consumption is increased, and the process of the process is about 15 hours.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a for solving exist among the prior art: 1. the welding connection time of the large-cover passageway is long; 2. the technical problem of welding defects of a large-cover passageway.

In order to solve the technical problem, the utility model discloses a following technical scheme:

a connecting device for a large-cover passageway in the distillation production period of titanium sponge comprises a flange hole 1, a long groove 2 and a concave groove 3, wherein the concave groove 3 is annular and is arranged at the central position of one side of the connecting device, and an asbestos rope is arranged in the concave groove; an annular long groove 2 is respectively arranged in the connecting devices positioned at the upper side and the lower side of the concave groove 3, and a sealing ring is arranged in the annular long groove 2; six flange holes 1 are uniformly distributed on the circumference.

Adopt above-mentioned technical scheme's beneficial effect:

1. the utility model overcomes big lid passageway welding quality problem reduces the product probability of admitting air, has improved titanium sponge production quality.

2. Adopt the utility model discloses the passageway device is connected, shortens production cycle 15 hours than prior art, reduces argon gas consumption and power consumption cost.

3. Adopt the utility model discloses welding connection is replaced to passageway device flange joint, reduces welding workman intensity of labour.

Drawings

Fig. 1 is a schematic structural view of the present invention;

in the figure: 1-flange hole, 2-long groove and 3-concave groove.

FIG. 2 is a schematic diagram of the production of the large-covered aisle of the present invention during the distillation production of titanium sponge.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings:

as shown in figure 1, the connecting device for the large-cover passage during the distillation production of the titanium sponge consists of a flange hole 1, a long-shaped groove 2 and a concave-shaped groove 3.

The concave groove 3 is annular, is arranged at the central position of one side of the connecting device, is internally provided with an asbestos rope and has the main functions of heat insulation and prevention of heat loss at high temperature; the concave groove 3 is mainly used for plugging the blind plate during reduction production so as to seal a reduction production system.

An annular long groove 2 is respectively arranged in the connecting devices positioned at the upper side and the lower side of the concave groove 3, and a sealing ring is arranged in the connecting devices, so that the vacuum degree of the system can be ensured not to be leaked; the long-shaped groove 2 is mainly used for facilitating the use of the clip during reduction production.

Six flange holes 1 are uniformly distributed on the circumference, and the main function of the flange holes is to be used for connecting with a cold end system passageway flange during distillation.

Claims

1. A connecting device for a large-cover passageway during distillation production of titanium sponge is characterized in that: the connecting device consists of a flange hole (1), a long groove (2) and a concave groove (3), wherein the concave groove (3) is annular and is arranged at the central position of one side of the connecting device, and an asbestos rope is arranged in the concave groove; the connecting devices positioned at the upper side and the lower side of the concave groove (3) are respectively provided with a long groove (2) in which a sealing ring is arranged; six flange holes (1) are uniformly distributed on the circumference.