A magnetic fluid sealed passageway unblocking device for a titanium sponge distillation process

Abstract

The present application relates to the technical field of metal processing, and is especially a magnetic fluid sealing passage dredging device for sponge titanium distillation process, which comprises a reduction furnace, a distillation furnace, a passage pipe, a dredging module and a stabilizing module, the dredging module is installed at the passage pipe, the stabilizing module is arranged between the dredging module and the passage pipe, a sealing gasket is arranged on the upper side of the vertical pipe flange of the passage pipe, the dredging module comprises a magnetic fluid sealing element, a support bolt is installed on the upper side of the magnetic fluid sealing element, a motor is fixedly connected to the upper side of the support bolt, a rotating shaft is arranged on the lower side of the magnetic fluid sealing element, threads are arranged on the upper end of the rotating shaft and the lower end of the shaft rod of the magnetic fluid sealing element, and a silk sleeve is spirally connected to the outer side of the threads, the magnetic fluid sealing element, the sealing gasket, the return spring, the sawtooth ring and the scraper structure and other structures are arranged to realize the ability of the inverted U-shaped combined furnace to dredge the condensed blockages in real time without stopping the furnace.

Description

Technical Field

[0001] This invention relates to the field of metal processing technology, specifically to a magnetic fluid sealing passage unblocking device for the distillation process of sponge titanium. Background Technology

[0002] Titanium is known as a magical metal and a metal of the future, possessing excellent chemical, physical, and mechanical properties. Currently, the mainstream industrial process for producing sponge titanium both domestically and internationally is the Kroll process, among which the inverted U-shaped combined process has become the main direction for sponge titanium production. The inverted U-shaped combined furnace mainly includes a reduction furnace chamber, a distillation furnace chamber, and passage pipes.

[0003] The main process of producing sponge titanium involves continuously feeding liquid TiCl4 into a reduction furnace containing liquid magnesium, where the following reaction occurs: TiCl4 + 2Mg = Ti + 2MgCl2. During the reaction, Ti and the byproduct MgCl2 are continuously generated. The reaction liquid level is controlled by periodically discharging MgCl2. After the reduction is completed, a distillation furnace is used to collect magnesium and a small amount of magnesium chloride distilled from the hot end of the reduction furnace. After distillation, a pure sponge titanium product is obtained.

[0004] In the existing inverted U-shaped combined furnace for producing sponge titanium, during the distillation stage, volatilized Mg and a small amount of MgCl2 vapors enter the condenser from the distiller and condense on the inner surface of the condenser. Because the volatilization rate of Mg at the reduction end and the condensation rate of the distillation furnace are difficult to match, the vapors condense at the condenser inlet. In the later stage of distillation, blockages often occur at the connection between the lower part of the T-tube at the distillation end and the furnace. The usual solution is to shut down the furnace and clean it manually. After shutting down the furnace, the production cycle is affected, and in order to prevent air from entering the titanium oxide agglomerate, argon needs to be purged into the furnace, which increases the amount of argon used. This prolongs the distillation cycle, increases production costs, and increases the labor intensity of operators. Therefore, based on the above problems, a magnetic fluid sealing passage unblocking device for the sponge titanium distillation process is proposed. Summary of the Invention

[0005] The purpose of this invention is to provide a magnetic fluid sealing passage unblocking device for the distillation process of sponge titanium, so as to solve the problem that the existing inverted U-shaped combined furnace requires frequent furnace shutdowns for cleaning due to condensed blockages during the distillation stage of sponge titanium production.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A magnetic fluid sealing passageway unblocking device for a sponge titanium distillation process includes a reduction furnace, a distillation furnace, a passageway pipe, an unblocking module, and a stabilizing module. The unblocking module is installed at the passageway pipe, and the stabilizing module is disposed between the unblocking module and the passageway pipe. A sealing gasket is provided on the upper side of the riser flange of the passageway pipe. The unblocking module includes a magnetic fluid seal, and a support bolt is installed on the upper side of the magnetic fluid seal. A motor is fixedly connected to the upper side of the support bolt. A rotating shaft is provided on the lower side of the magnetic fluid seal, and the upper end of the rotating shaft is connected to the lower shaft of the magnetic fluid seal. All ends are threaded, and a threaded sleeve is helically connected to the outer side of the thread. Hoops are fixedly connected to both sides of the threaded sleeve. An elastic damping ring is fixedly connected to the lower end of the shaft of the magnetic fluid seal and the outer side of the rotating shaft. A rotating groove is opened on the inner side of the rotating shaft. A scraper structure is rotatably connected to the inner side of the rotating groove. A pressure ring is slidably connected to the outer side of the rotating shaft. A serrated ring is fixedly connected to the lower side of the pressure ring and the upper side of the scraper structure. A stop ring is fixedly connected to the outer side of the rotating shaft. A return spring is sleeved on the outer side of the rotating shaft. A vibrating element is fixedly connected to the outer side of the pressure ring.

[0008] Preferably, the magnetic fluid seal consists of upper and lower flanges, a magnetic fluid body, and a shaft. Magnetic nanoparticles are disposed inside the magnetic fluid body of the magnetic fluid seal. A groove is opened on the upper side of the shaft of the magnetic fluid seal. The output shaft of the motor is inserted into the groove of the shaft of the magnetic fluid seal. The magnetic fluid seal is fixedly connected to the riser flange of the passage pipe by fastening bolts. The sealing gasket is disposed between the magnetic fluid seal and the riser flange of the passage pipe.

[0009] Preferably, the shaft and rotating shaft of the magnetohydrodynamic seal are both located inside the threaded sleeve, the elastic damping rings are all located inside the clamp, a set of the elastic damping rings are all located on the upper and lower sides of the thread, and the surfaces of the elastic damping rings are all in close contact with the inner wall of the clamp.

[0010] Preferably, the return spring is disposed between the lower end face of the abutment ring and the upper end face of the pressure ring, and the two ends of the return spring are fixedly connected to the abutment ring and the pressure ring respectively. The abutment ring, the return spring, the pressure ring and the serrated ring are all disposed on the lower side of the threaded sleeve and the clamping sleeve, and a group of the serrated rings mesh with each other.

[0011] Preferably, there are a total of 4 vibrating elements, which are arranged at equal angles. Each vibrating element is composed of a rod and a ball. The scraper structure is composed of a rotating sleeve and a plate. Each vibrating element is arranged between the plates of the scraper structure. Each plate of the scraper structure has a groove on its inner side.

[0012] Preferably, the stabilizing module includes a splicing hoop, the inner side of which is provided with a channel, and the upper and lower sides of the channel are provided with a track. Buffer pads are fixedly connected to both sides of the inner wall of the splicing hoop, and through holes are provided on the inner side of the splicing hoop. Positioning strips are slidably connected to the inner side of the channel, and slots are provided on the inner side of the positioning strips. Clips are installed on the inner side of the through holes.

[0013] Preferably, there are two splicing hoops, which are installed on the outside of the flange on the lower side of the magnetic fluid seal and the riser flange of the passage pipe. The inner side of each splicing hoop is provided with a notch. The positioning strip is composed of an arc-shaped strip and a rail. The rail of the positioning strip is set on the inner side of the rail. The clamp is composed of a long strip and a plug. The plug of the clamp is inserted into the inner side of the clamp slot.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] 1. In this invention, the magnetic fluid seal, sealing gasket, return spring, serrated ring, and scraper structure are designed to allow the motor to rotate the scraper structure via the magnetic fluid seal and rotating shaft. The rotation of the scraper structure can clear blockages in the passage pipe. The magnetic fluid seal, in conjunction with the sealing gasket, can seal the connection between the unblocking module and the passage pipe. The magnetic fluid seal ensures that the rotation of the unblocking structure does not cause damage to the seal. The return spring, pressure ring, and serrated ring can cause the vibrating component to vibrate up and down when the rotation of the scraper structure is obstructed. The vibration of the vibrating component improves the unblocking effect of the unblocking structure on condensate. This invention enables the inverted U-shaped combined furnace to clear condensed blockages in real time without shutting down the furnace, solving the problem of frequent furnace shutdowns for cleaning due to condensed blockages in the distillation stage of producing sponge titanium in existing inverted U-shaped combined furnaces.

[0016] 2. In this invention, the splicing hoop, buffer pad, positioning strip, and clamp are designed to allow the splicing hoop to work with the buffer pad to buffer and position the connection between the unblocking module and the passage pipe. The sliding positioning strip can align and position the splicing hoop on both sides, and the clamp can secure the positioning strip at the position of the splicing hoop, preventing the positioning strip from shifting on its own. This achieves stable positioning of the sealed connection between the inverted U-shaped combined furnace and the unblocking structure, preventing gaps from appearing at the connection due to vibration of the unblocking structure. This solves the problem that the connection between the inverted U-shaped combined furnace and the external unblocking structure is usually made with flange bolts, and the vibration of the unblocking structure during operation may cause the bolts to loosen, leading to sealing problems between the unblocking structure and the combined furnace. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0018] Figure 2 This is a schematic diagram of the unblocking module of the present invention;

[0019] Figure 3 For the present invention Figure 2 A schematic diagram of the structure at point A;

[0020] Figure 4 This is a schematic diagram of the structure of the magnetohydrodynamic seal of the present invention;

[0021] Figure 5 For the present invention Figure 2 A schematic diagram of the split structure;

[0022] Figure 6 For the present invention Figure 5 A schematic diagram of the structure at point B;

[0023] Figure 7 This is a schematic diagram of the structure of the stabilization module in this invention;

[0024] Figure 8 For the present invention Figure 7 A schematic diagram of the split structure;

[0025] Figure 9 This is a schematic diagram of the split structure of the stabilization module of the present invention.

[0026] In the diagram: 1. Reduction furnace; 2. Distillation furnace; 3. Passage pipe; 4. Sealing gasket; 5. Unblocking module; 501. Magnetofluid seal; 502. Motor; 503. Support bolt; 504. Shaft; 505. Thread; 506. Threaded sleeve; 507. Hoop; 508. Elastic damping ring; 509. Rotary groove; 510. Scraper structure; 511. Pressure ring; 512. Serrated ring; 513. Vibrating component; 514. Abutment ring; 515. Return spring; 6. Stabilizing module; 601. Splicing hoop; 602. Channel; 603. Track; 604. Notch; 605. Buffer pad; 606. Perforation; 607. Positioning strip; 608. Slot; 609. Clip. Detailed Implementation

[0027] Please see Figure 1-9 The present invention provides a technical solution:

[0028] A magnetic fluid sealing passage unblocking device for a sponge titanium distillation process includes a reduction furnace 1, a distillation furnace 2, a passage pipe 3, an unblocking module 5, and a stabilizing module 6. The unblocking module 5 is installed at the passage pipe 3, and the stabilizing module 6 is located between the unblocking module 5 and the passage pipe 3. A sealing gasket 4 is provided on the upper side of the riser flange of the passage pipe 3. The unblocking module 5 includes a magnetic fluid seal 501, a support bolt 503 is installed on the upper side of the magnetic fluid seal 501, and a motor 502 is fixedly connected to the upper side of the support bolt 503. A rotating shaft 504 is provided on the lower side of the magnetic fluid seal 501, and threads 505 are provided on both the upper end of the rotating shaft 504 and the lower end of the shaft of the magnetic fluid seal 501. A threaded sleeve 506 is helically connected to the outer side of threaded thread 505. Hoops 507 are fixedly connected to both sides of threaded sleeve 506. An elastic damping ring 508 is fixedly connected to the lower end of the shaft of magnetic fluid seal 501 and the outer side of rotating shaft 504. A rotating groove 509 is opened on the inner side of rotating shaft 504. A scraper structure 510 is rotatably connected to the inner side of rotating groove 509. A pressure ring 511 is slidably connected to the outer side of rotating shaft 504. A serrated ring 512 is fixedly connected to the lower side of pressure ring 511 and the upper side of scraper structure 510. A retaining ring 514 is fixedly connected to the outer side of rotating shaft 504. A return spring 515 is sleeved on the outer side of rotating shaft 504. A vibrating element 5 is fixedly connected to the outer side of pressure ring 511. 13. The magnetic fluid seal 501 consists of upper and lower flanges, a magnetic fluid body, and a shaft. Magnetic nanoparticles are disposed within the magnetic fluid body of the magnetic fluid seal 501. A groove is provided on the upper side of the shaft of the magnetic fluid seal 501. The output shaft of the motor 502 is inserted into the groove on the shaft of the magnetic fluid seal 501. The magnetic fluid seal 501 is fixedly connected to the riser flange of the passageway pipe 3 by fastening bolts. A sealing gasket 4 is placed between the magnetic fluid seal 501 and the riser flange of the passageway pipe 3. The magnetic fluid seal 501 and the sealing gasket 4 can seal the connection between the unblocking module 5 and the passageway pipe 3. The magnetic fluid seal 501 enables the unblocking structure... The rotational operation will not cause damage to the seal, allowing the motor 502 to drive the shaft of the magnetic fluid seal 501 to rotate. The shaft of the magnetic fluid seal 501 and the rotating shaft 504 are both located inside the threaded sleeve 506, and the elastic damping rings 508 are both located inside the clamp 507. A set of elastic damping rings 508 are located on the upper and lower sides of the thread 505. The surfaces of the elastic damping rings 508 are tightly fitted to the inner wall of the clamp 507. The elastic damping rings 508 and the clamp 507 can improve the damping of the threaded sleeve 506, the rotating shaft 504, and the shaft of the magnetic fluid seal 501, preventing the shaft 504 from losing its connection with the shaft of the magnetic fluid seal 501.A return spring 515 is disposed between the lower end face of the abutment ring 514 and the upper end face of the pressure ring 511. Both ends of the return spring 515 are fixedly connected to the abutment ring 514 and the pressure ring 511, respectively. The abutment ring 514, return spring 515, pressure ring 511, and serrated ring 512 are all disposed on the lower side of the threaded sleeve 506 and the clamp sleeve 507. A set of serrated rings 512 mesh with each other. The elastic force of the return spring 515 can push the pressure ring 511 downwards, ensuring that the set of serrated rings 512 remains meshed. The meshing of the serrated rings 512 allows the rotating shaft 504 to drive the scraper. The plate structure 510 rotates; four vibrating elements 513 are provided, and the vibrating elements 513 are arranged at equal angles. Each vibrating element 513 consists of a rod and a ball. The scraper structure 510 consists of a rotating sleeve and a plate. The vibrating elements 513 are all arranged between the plates of the scraper structure 510. The inner side of each plate of the scraper structure 510 is provided with a groove, so that when the rotational resistance of the scraper structure 510 increases, the vibrating elements 513 can quickly vibrate up and down in conjunction with the elastic force of the return spring 515 to reset. The vibration of the vibrating elements 513 improves the unblocking effect of the unblocking structure on condensate.

[0029] like Figure 7-9 As shown, the stabilizing module 6 includes a splicing hoop 601. Each splicing hoop 601 has a groove 602 on its inner side, and rails 603 on both the upper and lower sides of the groove 602. Buffer pads 605 are fixedly connected to both sides of the inner wall of the splicing hoop 601. Each splicing hoop 601 has a through hole 606 on its inner side. Positioning strips 607 are slidably connected to the inner side of each groove 602. Each positioning strip 607 has a slot 608 on its inner side, and a clip 609 is installed on the inner side of each through hole 606. The sealing connection between the inverted U-shaped combined furnace and the unblocking structure can be stably positioned by the stabilizing module 6, preventing gaps from appearing at the connection due to vibrations of the unblocking structure. Two splicing hoops 601 are provided, each installed on the lower flange of the magnetic fluid seal 501 and the passage pipe 3. On the outside of the riser flange and on the inside of the splicing clamp 601, there are notches 604. The positioning strip 607 is composed of an arc-shaped strip and a rail. The rail of the positioning strip 607 is set on the inside of the track 603. The clamp 609 is composed of a long strip and a plug. The plug of the clamp 609 is inserted into the inside of the slot 608. By sliding the positioning strip 607, the splicing clamps 601 on both sides can be aligned and positioned. The clamp 609 can fix the positioning strip 607 in the position of the splicing clamp 601 to prevent the positioning strip 607 from shifting on its own. The splicing clamp 601, together with the buffer pad 605, can buffer and position the connection between the unblocking module 5 and the passage pipe 3. The track 603 can guide the positioning strip 607, and the notch 604 provides the installation position for the fastening bolt.

[0030] Workflow: When using a dredging device to unclog the inverted U-shaped combined furnace, the connection between the magnetic fluid seal 501 and the rotating shaft 504 is made through the threaded sleeve 506 and the thread 505. When the shaft of the magnetic fluid seal 501 and the rotating shaft 504 are turned into the inner side of the threaded sleeve 506 through the thread 505, the elastic damping ring 508 will move into the inner side of the clamp 507. It will deform under the pressure of the clamp 507, causing the elastic damping ring 508 to fit tightly against the inner wall of the clamp 507. This prevents the rotating shaft 504 from disengaging from the shaft of the magnetic fluid seal 501 during high-speed rotation. The magnetic fluid seal 501, together with the sealing gasket 4 and the fastening bolts, can unclog the furnace. The connection between the unblocking module 5 and the passage pipe 3 is sealed. The magnetic fluid seal 501 ensures that the rotation of the unblocking structure does not damage the seal. Starting the motor 502 causes the output shaft of the motor 502 to rotate the shaft of the magnetic fluid seal 501. This rotation of the magnetic fluid seal 501 shaft drives the rotating shaft 504. The rotation of the rotating shaft 504 causes the abutment ring 514, return spring 515, and pressure ring 511 to rotate the meshing serrated ring 512. The rotation of the serrated ring 512 causes the scraper structure 510 to rotate. This rotation of the scraper structure 510 can remove magnesium chloride and other substances blocking the passage pipe 3 (at the connection between the lower part of the distillation end T-tube and the furnace chamber). In real-time unblocking of magnesium-containing condensate, when the scraper structure 510 encounters significant resistance during rotation, a differential speed phenomenon occurs between the lower and upper serrated rings 512. The lower serrated ring 512 compresses the upper serrated ring 512. The upward pressure on the upper serrated ring 512 and the downward elastic force of the return spring 515, along with the differential rotation of the upper and lower serrated rings 512, drive the pressure ring 511 to rapidly move up and down for reset. The movement of the pressure ring 511 causes the vibrating element 513 to vibrate at high frequency. The vibration of the vibrating element 513 improves the cleaning efficiency of the scraper structure 510, enhancing the real-time unblocking performance of the unblocking device. The operation will generate vibration. By installing the splicing clamp 601 on the outside of the flange of the magnetic fluid seal 501 and the riser flange of the passage pipe 3, and with the buffer pad 605, the connection between the unblocking module 5 and the passage pipe 3 can be buffered and positioned. The splicing clamp 601 on both sides can be aligned and positioned by the sliding positioning strip 607, and the positioning strip 607 can be locked in the position of the splicing clamp 601 by the clamp 609 (so that the insertion rod of the clamp 609 passes through the through hole 606 and is inserted into the slot 608), so as to prevent the positioning strip 607 from shifting on its own. This allows the connection between the inverted U-shaped combined furnace and the unblocking structure to be stably positioned, and to prevent gaps in the seal at the connection due to the vibration of the unblocking structure.

[0031] This article uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only for the purpose of helping to understand the method and core ideas of the present invention. The above are only preferred embodiments of the present invention. It should be noted that due to the limitations of textual expression, and the existence of an infinite number of specific structures, those skilled in the art can make several improvements, modifications, or changes without departing from the principles of the present invention, and can also combine the above technical features in an appropriate manner. These improvements, modifications, changes, or combinations, or the direct application of the inventive concept and technical solution to other situations without modification, should all be considered within the scope of protection of the present invention.

Claims

1. A magnetic fluid sealed passageway unblocking device for titanium sponge distillation process, comprising a reduction furnace (1), a distillation furnace (2), a passageway pipe (3), an unblocking module (5) and a stabilizing module (6), characterized in that: The unblocking module (5) is installed at the passage pipe (3), and the stabilizing module (6) is set between the unblocking module (5) and the passage pipe (3). A sealing gasket (4) is provided on the upper side of the riser flange of the passage pipe (3). The unblocking module (5) includes a magnetic fluid seal (501). A support bolt (503) is installed on the upper side of the magnetic fluid seal (501). A motor (502) is fixedly connected to the upper side of the support bolt (503). A gasket (4) is provided on the lower side of the magnetic fluid seal (501). A rotating shaft (504) is provided, with threads (505) on both the upper end of the rotating shaft (504) and the lower end of the shaft of the magnetic fluid seal (501). A threaded sleeve (506) is helically connected to the outer side of the threaded sleeve (505), and clamps (507) are fixedly connected to both sides of the threaded sleeve (506). An elastic damping ring (508) is fixedly connected to both the lower end of the shaft of the magnetic fluid seal (501) and the outer side of the rotating shaft (504). A rotating groove (509) is provided on the inner side of the rotating shaft (504). A scraper structure (510) is rotatably connected to the inner side of the rotating groove (509). A pressure ring (511) is slidably connected to the outer side of the rotating shaft (504). A serrated ring (512) is fixedly connected to the lower side of the pressure ring (511) and the upper side of the scraper structure (510). A stop ring (514) is fixedly connected to the outer side of the rotating shaft (504). A return spring (515) is sleeved on the outer side of the rotating shaft (504). A vibrating element (513) is fixedly connected to the outer side of the pressure ring (511). A spring (515) is disposed between the lower end face of the abutment ring (514) and the upper end face of the pressure ring (511). The two ends of the return spring (515) are fixedly connected to the abutment ring (514) and the pressure ring (511) respectively. The abutment ring (514), the return spring (515), the pressure ring (511) and the serrated ring (512) are all disposed on the lower side of the thread sleeve (506) and the clamp sleeve (507). A set of the serrated rings (512) mesh with each other. The stabilizing module (6) includes a splicing clamp (601).

2. A magnetic fluid sealed passageway purging device for a titanium sponge distillation process according to claim 1, characterized in that: The magnetic fluid seal (501) consists of upper and lower flanges, a magnetic fluid body and a shaft. Magnetic nanoparticles are provided inside the magnetic fluid body of the magnetic fluid seal (501). A groove is opened on the upper side of the shaft of the magnetic fluid seal (501). The output shaft of the motor (502) is inserted into the groove of the shaft of the magnetic fluid seal (501). The magnetic fluid seal (501) is fixedly connected to the riser flange of the passage pipe (3) by fastening bolts. The sealing gasket (4) is set between the magnetic fluid seal (501) and the riser flange of the passage pipe (3).

3. The magnetic fluid sealing passage unblocking device for the sponge titanium distillation process according to claim 1, characterized in that: The shaft and rotating shaft (504) of the magnetic fluid seal (501) are both located inside the threaded sleeve (506), the elastic damping rings (508) are both located inside the clamp (507), and a set of the elastic damping rings (508) are both located on the upper and lower sides of the thread (505). The surfaces of the elastic damping rings (508) are all in close contact with the inner wall of the clamp (507).

4. A magnetic fluid sealed passageway purging device for a titanium sponge distillation process as claimed in claim 1, wherein: There are a total of 4 vibration elements (513), and the vibration elements (513) are arranged at equal angles. The vibration element (513) is composed of a rod and a ball. The scraper structure (510) is composed of a rotating sleeve and a plate. The vibration elements (513) are all arranged between the plates of the scraper structure (510). The inner side of the plate of the scraper structure (510) is provided with a groove.

5. A magnetic fluid sealed passageway purging device for a titanium sponge distillation process as claimed in claim 1, wherein: The inner side of each splicing hoop (601) is provided with a channel (602), and the upper and lower sides of each channel (602) are provided with a track (603). Both sides of the inner wall of each splicing hoop (601) are fixedly connected with a buffer pad (605). The inner side of each splicing hoop (601) is provided with a through hole (606). The inner side of each channel (602) is slidably connected with a positioning strip (607). The inner side of each positioning strip (607) is provided with a slot (608). The inner side of each through hole (606) is provided with a clip (609).

6. A magnetic fluid sealed passageway purging device for a titanium sponge distillation process as claimed in claim 5, wherein: Two splicing hoops (601) are provided. The splicing hoops (601) are installed on the outside of the flange on the lower side of the magnetic fluid seal (501) and the riser flange of the passage pipe (3). The inner side of the splicing hoops (601) is provided with a notch (604). The positioning strip (607) is composed of an arc strip and a rail. The rail of the positioning strip (607) is set on the inside of the track (603). The clamp (609) is composed of a long strip and a plug. The plug of the clamp (609) is inserted into the inside of the slot (608).

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