Magnesium chloride discharge pipe device for inverted U-shaped furnace

Abstract

The utility model discloses a magnesium chloride discharge pipe device for an inverted U-shaped furnace, which comprises a magnesium chloride discharge vertical pipe and a magnesium chloride discharge transverse pipe, and the intersection of the magnesium chloride discharge vertical pipe and the magnesium chloride discharge transverse pipe is connected through a vertical pipe flange and a transverse pipe flange; transverse pipe inner sleeves are arranged in the magnesium chloride discharge transverse pipe and are arranged in the magnesium chloride discharge transverse pipe at intervals; and the magnesium chloride discharge transverse pipe is supported on the ground through a telescopic bracket and is inclined relative to the horizontal plane. According to the magnesium chloride discharging pipe device for the inverted-U-shaped furnace, through specific structural arrangement, the technical problems that in the prior art, a magnesium chloride discharging pipe is poor in heat preservation effect, prone to blockage and deformation, not easy to dredge, short in service life and the like can be effectively solved, the blockage frequency of the magnesium chloride discharging pipe is reduced, and the service life of the magnesium chloride discharging pipe is prolonged. And the average blockage of each production furnace is reduced from 1-3 times per furnace to 0.1-0.8 times per furnace.

Description

TECHNICAL FIELD

[0001] The utility model relates to non ferrous metal smelting technical field especially a kind of magnesium chloride pipe device for inverted "U" type furnace. BACKGROUND

[0002] As important raw material for titanium alloy processing, the main method for producing sponge titanium in industry is Kroll method, which can be divided into "I type furnace" and inverted "U type furnace" according to the type of reactor. At present, sponge titanium production at home and abroad generally uses inverted "U type furnace", and the magnesium chloride pipe is an important accessory part of the reactor, which plays a role in discharging magnesium chloride melt during reduction. The magnesium chloride pipe is mainly composed of horizontal pipe and vertical pipe. During the whole process of discharging magnesium chloride, the temperature of discharged magnesium chloride melt can reach above 800℃. Since the magnesium chloride discharge horizontal pipe is exposed to normal temperature environment, the heat preservation effect is poor and the heat dissipation is fast. Under the influence of high temperature and pressure, the magnesium chloride discharge horizontal pipe is prone to bending, deformation and blockage, which leads to the failure of magnesium chloride discharge. Therefore, it is necessary to take unconventional measures to dredge the magnesium chloride discharge pipe or replace the magnesium chloride discharge pipe, which consumes time and effort, seriously affects the service life of magnesium chloride pipe, the quality of sponge titanium and production efficiency, and there is a great security risk in the treatment process due to high temperature and high pressure.

[0003] CN201010298576.2 discloses a method for manufacturing magnesium chloride discharge pipe for producing sponge titanium. The magnesium chloride discharge pipe is composed of blocking plate, magnesium chloride discharge horizontal pipe flange, magnesium chloride discharge horizontal pipe, magnesium chloride discharge vertical pipe and magnesium chloride discharge horizontal pipe inner sleeve. The magnesium chloride discharge vertical pipe and the reactor cylinder are connected by the rib plate. The magnesium chloride discharge horizontal pipe is continuously welded with the reactor cylinder, the magnesium chloride discharge vertical pipe and the upper and lower flange short cylinder. The blocking plate is welded with the magnesium chloride discharge vertical pipe at a certain angle, and the angle between the blocking plate and the magnesium chloride discharge vertical pipe is 195-240 degrees. The magnesium chloride discharge horizontal pipe, the magnesium chloride discharge horizontal pipe inner sleeve and the magnesium chloride discharge horizontal pipe flange form the magnesium chloride discharge outlet pipe. A certain gap is reserved between the magnesium chloride discharge horizontal pipe and the magnesium chloride discharge horizontal pipe inner sleeve, and the gap is 2-30 mm. The left end of the magnesium chloride discharge horizontal pipe inner sleeve is spot welded on the magnesium chloride discharge horizontal pipe, and the right end is not welded. The magnesium chloride discharge pipe prepared by the method avoids the breakage of the magnesium chloride discharge horizontal pipe weld, the inner sleeve can freely expand and contract, and the service life is prolonged. When the magnesium chloride discharge pipe horizontal pipe is blocked, the inner sleeve can be taken by cutting the horizontal pipe. The probability of magnesium chloride discharge pipe blockage is reduced. However, the magnesium chloride discharge pipe still has the problems of easy bending and deformation, and the blockage frequency is still high.

[0004] Therefore, the application discloses a magnesium chloride discharging pipe device for an inverted U-shaped furnace, which can better solve the problems of magnesium chloride discharging pipe deformation, blockage and short service life of the inverted U-shaped sponge titanium production, can improve production efficiency and save cost, can solve safety hazards and improve production safety. Content of the utility model

[0005] The magnesium chloride discharging device can effectively solve the technical problems of poor heat preservation effect, easy blockage, easy deformation, difficulty in dredging and short service life of the magnesium chloride discharging pipe in the prior art, and can reduce the blockage frequency of the magnesium chloride discharging pipe from 1 to 3 times per furnace to 0.1 to 0.8 times per furnace.

[0006] In order to achieve the above-mentioned purpose of the utility model, the magnesium chloride discharging pipe device for the inverted U-shaped furnace comprises a magnesium chloride discharging vertical pipe and a magnesium chloride discharging horizontal pipe, the magnesium chloride discharging vertical pipe and the magnesium chloride discharging horizontal pipe are connected through a vertical pipe flange and a horizontal pipe flange at a junction, and the magnesium chloride discharging horizontal pipe is provided with an inner sleeve.

[0007] The magnesium chloride discharging horizontal pipe is supported on the ground through an extensible support and is arranged to be inclined to a horizontal plane.

[0008] The magnesium chloride discharging device has the magnesium chloride discharging horizontal pipe provided with the inner sleeve and arranged to be inclined to the horizontal plane. The magnesium chloride discharging horizontal pipe has a certain gap with the inner sleeve, has a good heat preservation effect on the magnesium chloride melt in the magnesium chloride discharging horizontal pipe, prevents the magnesium chloride melt from solidifying in the magnesium chloride discharging horizontal pipe, makes the surface temperature of the magnesium chloride discharging horizontal pipe low and reduces the blockage rate of the magnesium chloride discharging horizontal pipe, avoids the direct contact of the inner sleeve of the magnesium chloride discharging horizontal pipe with air, avoids the oxidation, deformation and thinning of the inner sleeve of the magnesium chloride discharging horizontal pipe under high temperature, prolongs the service life of the magnesium chloride discharging horizontal pipe, and makes the high-temperature magnesium chloride melt flow out, effectively avoids the phenomenon that the magnesium chloride melt is left in the magnesium chloride discharging horizontal pipe and the inner diameter of the magnesium chloride discharging horizontal pipe is reduced during the magnesium chloride discharging process, and reduces the blockage rate of the magnesium chloride discharging device.

[0009] During the magnesium chloride discharging process, the magnesium chloride discharging horizontal pipe is easily deformed under the influence of high temperature, magnesium chloride, gravity and pressure of the horizontal pipe, the horizontal pipe is bent, the high-temperature magnesium chloride melt is left in the horizontal pipe, the magnesium chloride discharging horizontal pipe is blocked and the service life of the magnesium chloride discharging horizontal pipe is affected. In the utility model, the extensible support can improve the supporting force of the magnesium chloride discharging horizontal pipe, effectively avoids the deformation, bending and blockage of the magnesium chloride discharging horizontal pipe during the magnesium chloride discharging process, and prolongs the service life of the magnesium chloride discharging device and improves the production efficiency.

[0010] The interval between the horizontal pipe inner sleeve and the magnesium chloride discharge horizontal pipe is preferably 10mm-20mm.

[0011] The telescopic length of the telescopic support is preferably between 400mm-800mm.

[0012] The interval between the horizontal pipe inner sleeve and the magnesium chloride discharge horizontal pipe is preferably filled with high-temperature-resistant material.

[0013] The magnesium chloride discharge horizontal pipe adopts a sectional structure.

[0014] The magnesium chloride discharge horizontal pipe adopts a sectional structure.

[0015] The adjacent sections of the magnesium chloride discharge horizontal pipe are connected through flanges.

[0016] A baffle plate is welded to the top of the magnesium chloride discharge vertical pipe.

[0017] The magnesium chloride discharge vertical pipe is fixed to the inner side of the furnace wall of the inverted "U"-shaped furnace through welding.

[0018] A flexible graphite gasket seal is arranged between the vertical pipe flange and the horizontal pipe flange.

[0019] The magnesium chloride discharge horizontal pipe is inclined at an angle of 10°-30° to the horizontal plane.

[0020] The beneficial effects of the present application are as follows:

[0021] The utility model provides a kind of for the magnesium chloride pipe device of discharge of "U" type furnace, by being supported on ground through the telescopic support of discharge magnesium chloride cross pipe through setting up cross pipe inner sleeve, and with certain inclination angle to horizontal plane, and discharge magnesium chloride cross pipe is supported on ground, improve the support force of discharge magnesium chloride cross pipe, effectively solve the technical problems, such as poor heat preservation effect, easy to block, easy to deform, not easy to dredge and short service life time of discharge magnesium chloride pipe in prior art, so that the blockage frequency of discharge magnesium chloride pipe is reduced from 1~3 times per production furnace to 0.1~0.8 times per furnace. BRIEF DESCRIPTION OF DRAWINGS

[0022] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or prior art, the drawings needed to be used in the following embodiment or prior art description will be simply introduced, and obviously, the drawings in the following description are only some embodiments of the utility model, and other embodiments can be obtained according to these drawings without creative labor for those skilled in the art.

[0023] Figure 1 It is a structure schematic view of the magnesium chloride pipe device of discharge for "U" type furnace of the utility model.

[0024] In the drawing: 1 - baffle, 2 - discharge magnesium chloride vertical pipe, 3 - telescopic support, 4 - discharge magnesium chloride cross pipe, 5 - cross pipe inner sleeve, 6 - "U" type furnace, 7 - cross pipe flange, 8 - vertical pipe flange. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical scheme and advantage of the utility model more clearly, the following is combined with specific embodiment, and the embodiment of the utility model is further explained in detail with reference to the drawings.

[0026] At present, the production of titanium sponge at home and abroad generally adopts "U" type furnace reactor, and there is the condition of deformation and blockage of discharge magnesium chloride pipe during the process of discharging magnesium chloride, and the average blockage is 1~3 times per production furnace, and the discharge magnesium chloride pipe needs to be dredged or replaced after blockage, and the average recovery time is about 3~10h, which affects the quality of titanium sponge product and reduces the production efficiency, and there is great security risk in the processing process.

[0027] The utility model proposes a kind of for the magnesium chloride pipe device of discharge of "U" type furnace in view of the above technical problems, and its specific implementation scheme is as follows:

[0028] The magnesium chloride discharge vertical pipe is fixed to the inner side of the furnace wall of the inverted "U"-shaped furnace by welding, the top end of the magnesium chloride discharge vertical pipe is provided with a baffle, the magnesium chloride discharge vertical pipe and the magnesium chloride discharge horizontal pipe are connected through a vertical pipe flange and a horizontal pipe flange, and a flexible graphite gasket is arranged between the vertical pipe flange and the horizontal pipe flange.

[0029] As a specific embodiment of the utility model, the magnesium chloride discharge horizontal pipe adopts a sectional structure, preferably, adjacent sections of the magnesium chloride discharge horizontal pipe are connected through flanges.

[0030] The magnesium chloride discharge device of the utility model is mainly applicable to the inverted "U"-shaped furnace, the magnesium chloride discharge horizontal pipe is provided with a horizontal pipe inner sleeve and is arranged at a certain inclination angle with the horizontal plane, the magnesium chloride discharge horizontal pipe is supported on the ground through the telescopic support, the supporting force of the magnesium chloride discharge horizontal pipe is improved, the technical problems of poor heat preservation effect, easy blockage, easy deformation, difficult dredging and short service life in the prior art are effectively solved,

[0031] The magnesium chloride discharge device of the utility model can reduce the blockage frequency from 1 to 3 times per production furnace to 0.1 to 0.8 times per furnace, which not only improves the production efficiency, but also greatly reduces the safety hazards in production, and has very important significance.

[0032] Example 1

[0033] As Figure 1 shown, the magnesium chloride discharge pipe device for the inverted "U"-shaped furnace of the embodiment comprises a magnesium chloride discharge vertical pipe 2 arranged in the inverted "U"-shaped furnace 6 and a magnesium chloride discharge horizontal pipe 4 arranged outside the inverted "U"-shaped furnace 6, the magnesium chloride discharge vertical pipe 2 is fixed to the inner side of the furnace wall of the inverted "U"-shaped furnace 6 by welding, the bottom of the magnesium chloride discharge vertical pipe 2 is bent in cooperation with the bottom of the furnace body of the "U"-shaped furnace 6, and the top end of the magnesium chloride discharge vertical pipe 2 is sealingly welded with a baffle 1; the magnesium chloride discharge vertical pipe 2 and the magnesium chloride discharge horizontal pipe 4 are connected through a vertical pipe flange 8 and a horizontal pipe flange 7, and a flexible graphite gasket is arranged between the vertical pipe flange 8 and the horizontal pipe flange 7; wherein,

[0034] The inside of the magnesium chloride discharge horizontal pipe 4 is provided with a horizontal pipe inner sleeve 5, which is spaced apart in the inside of the magnesium chloride discharge horizontal pipe 4, the spacing between the horizontal pipe inner sleeve 5 and the magnesium chloride discharge horizontal pipe 4 is 10-20mm, the spacing between the horizontal pipe inner sleeve 5 and the magnesium chloride discharge horizontal pipe 4 is filled with a high-temperature-resistant material; the magnesium chloride discharge horizontal pipe 4 is supported on the ground by several telescopic supports 3, and is arranged obliquely to the horizontal plane; the telescopic length of the telescopic support 3 is between 400-800mm, the magnesium chloride discharge horizontal pipe 4 is inclined to the horizontal plane at an angle of 10-30°;

[0035] As a more optimal embodiment, the magnesium chloride discharge horizontal pipe 4 adopts a segmented structure, and adjacent segments are connected by flanges. Correspondingly, the horizontal pipe inner sleeve 5 and the magnesium chloride discharge horizontal pipe adopt a corresponding segmented structure, which cooperates with the magnesium chloride discharge horizontal pipe 4 to discharge the material when the blockage occurs.

[0036] It should be understood by those skilled in the art that the above discussion of any embodiment is only exemplary and is not intended to imply that the scope (including claims) of the embodiments disclosed by the present application is limited to these examples; under the idea of the embodiments of the present application, the above embodiments or technical features in different embodiments can also be combined, and there are many other changes of different aspects of the embodiments of the present application as described above. In order to be brief, they are not provided in details. Therefore, any omission, modification, equivalent replacement, improvement, etc. made in the spirit and principles of the embodiments of the present application should be included in the protection scope of the embodiments of the present application.

Claims

1. A magnesium chloride discharge tube arrangement for a reverse "U" shaped furnace, characterized in that, The vertical magnesium chloride discharge pipe and the horizontal magnesium chloride discharge pipe are connected by a vertical pipe flange and a horizontal pipe flange at the intersection of the vertical magnesium chloride discharge pipe and the horizontal magnesium chloride discharge pipe. The horizontal magnesium chloride discharge pipe is supported on the ground by telescopic supports and is arranged obliquely to the horizontal plane.

2. A magnesium chloride discharge tube arrangement for a reverse U-shaped furnace according to claim 1, characterized in that The spacing between the horizontal pipe inner sleeve and the horizontal magnesium chloride discharge pipe is 10-20 mm.

3. A magnesium chloride discharge tube arrangement for a reverse U-shaped furnace according to claim 1, characterized in that The telescopic length of the telescopic supports is 400-800 mm.

4. A magnesium chloride removal tube apparatus for a reverse U-shaped furnace according to claim 1, characterized by The spacing between the horizontal pipe inner sleeve and the horizontal magnesium chloride discharge pipe is filled with a high-temperature-resistant material.

5. A magnesium chloride removal tube apparatus for a reverse U-shaped furnace according to claim 1, characterized by The horizontal magnesium chloride discharge pipe adopts a sectional structure.

6. A magnesium chloride removal tube arrangement for a reverse U-shaped furnace according to claim 5, characterized in that The adjacent sections of the horizontal magnesium chloride discharge pipe are connected by flanges.

7. A magnesium chloride removal tube apparatus for a reverse U-shaped furnace according to claim 1, characterized in that A blanking plate is welded to the top of the vertical magnesium chloride discharge pipe.

8. A magnesium chloride removal tube apparatus for a reverse U-shaped furnace according to claim 1, characterized by The vertical magnesium chloride discharge pipe is fixed to the inner side of the furnace wall of the inverted "U"-shaped furnace by tight welding.

9. A magnesium chloride removal tube apparatus for a reverse U-shaped furnace according to claim 1, characterized by A flexible graphite gasket is arranged between the vertical pipe flange and the horizontal pipe flange.

10. A magnesium chloride removal tube apparatus for a reverse U-shaped furnace according to claim 1, characterized by The horizontal magnesium chloride discharge pipe is inclined to the horizontal plane at an angle of 10-30°.

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