A blowing device and a reaction furnace

Abstract

The application discloses a spraying device and a reaction furnace, and solves the technical problems that titanium exists in a large block, is difficult to discharge, and production continuity is poor in the prior art. The spraying device comprises a spraying gun, a main pipe, and a branch pipe group. The lower end of the main pipe is closed. The branch pipe group comprises a plurality of branch pipes for extending into molten magnesium chloride in a reaction furnace. The plurality of branch pipes are communicated with the main pipe and are distributed along the circumference of the main pipe. The branch pipe is provided with a spray hole for spraying titanium tetrachloride. A driving assembly is used for driving the spraying gun to move in the height direction. The spray hole of the spraying device is not easy to be blocked, and the formed titanium exists in a granular form, thereby improving the production continuity.

Description

Technical Field

[0001] This application belongs to the field of sponge titanium preparation technology, specifically relating to a blowing device and a reaction furnace. Background Technology

[0002] As a key strategic material in the aerospace and high-end chemical industries, sponge titanium has been produced using the Kroll process, which has been the core technology for industrial production of sponge titanium since its invention by Luxembourg scientist W.J. Kroll in 1940.

[0003] In related technologies, the core reactor for preparing sponge titanium can also be called a reaction furnace. Raw materials are added by injecting TiCl4 into the reaction furnace through a spray gun fixed to the furnace top. This design confines the reduction reaction to a limited area on the surface of liquid magnesium. The sensible heat released by the reaction accumulates highly in the narrow reaction zone on the surface of liquid magnesium, causing the temperature in some areas to exceed 1000℃. The resulting sponge titanium nucleates at the interface between the reactor wall and molten magnesium. Under the action of buoyancy and adhesion, it grows along the wall surface with the edges of titanium grains as active centers, gradually agglomerating into lumps and floating on the surface of the melt. As the titanium lumps grow larger and magnesium chloride is discharged, the titanium lumps eventually sink to the bottom, forming sponge titanium lumps. Due to the large size of the sponge titanium lumps, it is difficult to discharge them from the bottom of the reaction furnace with the magnesium chloride, affecting the continuity of production. Summary of the Invention

[0004] To address the current technical problem of titanium emission difficulties affecting production continuity, this application provides a jetting device and a reaction furnace.

[0005] In a first aspect of this application, a jetting device is provided, comprising:

[0006] The spray gun includes a main pipe and a branch pipe assembly. The lower end of the main pipe is closed. The branch pipe assembly includes multiple branch pipes for extending into the molten magnesium chloride in the reactor. The multiple branch pipes are connected to the main pipe and are arranged around the periphery of the main pipe. The branch pipes are provided with spray holes for spraying titanium tetrachloride.

[0007] A drive assembly for driving the spray gun to move along the height direction.

[0008] In some embodiments, the branch pipe is inclined, the upper end of the branch pipe is connected to the main pipe, the lower end of the branch pipe is open, and the branch pipe is provided with a through hole communicating with its own lumen.

[0009] The opening at the lower end of the branch pipe and / or the through hole serve as the spray hole.

[0010] In some embodiments, the through hole is located on the lower side of the circumferential surface of the branch pipe.

[0011] In some embodiments, multiple through holes are provided, and the multiple through holes are distributed at intervals along the axial direction of the branch pipe.

[0012] In some embodiments, the diameter of the through-hole on the branch pipe gradually increases along the direction away from the main pipe.

[0013] In some embodiments, the main pipe includes a first pipe section and a second pipe section coaxially connected, and the branch pipe group is located in the second pipe section.

[0014] In some embodiments, the drive assembly includes a drive member and a transmission member, the drive member having a rotatable output end, the upper end of the transmission member being wound around the output end, and the lower end being connected to the spray gun.

[0015] In some embodiments, the transmission component is a traction rope, and the traction rope is provided in two sets, with the upper ends of both sets of traction ropes wound around the output end in the same direction.

[0016] The drive assembly also includes guide members and a mounting plate. The number of guide members is the same as the number of traction ropes. The middle part of the traction rope is slidably engaged with the guide member. The lower ends of the traction rope are respectively connected to opposite sides of the mounting plate. The spray gun is mounted in the middle of the mounting plate.

[0017] In some embodiments, the guide element is a guide pulley, which is tactilely connected to the corresponding traction rope.

[0018] In a second aspect of this application, a titanium particle reactor is provided, comprising:

[0019] The furnace body and the furnace cover are connected to the furnace body in an openable and closable manner, and the furnace cover is provided with a sealing hole;

[0020] In the first aspect of the injection device, the upper part of the main pipe is located outside the furnace body, the middle part passes through the sealing hole, the lower end is located inside the furnace body, and the branch pipe assembly is located inside the furnace body;

[0021] The projection component of the branch pipe along the radial direction of the furnace body is one-third to two-thirds of the radius of the furnace body.

[0022] According to the embodiments of this application, the spraying device includes a spray gun and a drive assembly, wherein: the spray gun includes a main pipe and a branch pipe group, the lower end of the main pipe is closed, the branch pipe group includes a plurality of branch pipes for extending into the molten magnesium chloride in the reactor, the plurality of branch pipes are all connected to the main pipe and are distributed at intervals along the circumference of the main pipe, and the branch pipes are provided with spray holes for spraying titanium tetrachloride; the drive assembly is used to drive the spray gun to move along the height direction.

[0023] The branch pipe of this application is located inside the molten magnesium chloride. After the injected titanium tetrachloride is vaporized, it floats to the surface in the form of bubbles and stirs the molten magnesium chloride and the reaction interface, which improves the temperature uniformity of the system. The titanium particles formed settle into the molten magnesium chloride layer under the action of gravity, which hinders the further growth of the titanium product and causes it to be uniformly deposited in the molten magnesium chloride in the form of fine particles. These titanium particles have good fluidity and are easy to discharge together with the molten magnesium chloride, thereby improving the continuity of production and operating efficiency.

[0024] Driven by the drive assembly, the spray gun can move along the height direction, preventing the branch pipe from being buried in the deposited titanium, reducing the risk of branch pipe nozzle blockage, and further improving production continuity. Attached Figure Description

[0025] Figure 1 A schematic diagram of the jetting device of this application is shown.

[0026] Figure 2 It shows Figure 1 A bottom view.

[0027] Figure 3 It shows Figure 2 A magnified view of a portion of the image.

[0028] Figure 4 It shows Figure 1 Another structural diagram from another angle.

[0029] Figure 5 A schematic diagram of the reactor structure is shown.

[0030] Figure 6 It shows Figure 5 A structural diagram from another angle.

[0031] Explanation of reference numerals in the attached figures:

[0032] 1000-Reactor; 10-Spray gun; 11-Main pipe; 111-First pipe section; 112-Second pipe section; 12-Branch pipe; 12a-Spray hole; 121-Opening; 123-Through hole; 20-Drive assembly; 21-Drive component; 22-Transmission component; 22a-Traction rope; 23-Guide component; 23a-Guide pulley; 24-Mounting plate; 25-First bracket; 30-Storage component; 40-Furnace body; 41-Drain port; 50-Furnace cover. Detailed Implementation

[0033] To enable those skilled in the art to more clearly understand this application, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0034] According to a first aspect of this application, a spraying device is provided that can improve the temperature uniformity of molten magnesium chloride and the reaction interface, so that titanium is deposited in particulate form, which is easy to discharge and realizes continuous production.

[0035] This application is described below with reference to the accompanying drawings and specific embodiments:

[0036] Please see Figures 1 to 4 The spraying device provided in this application embodiment includes a spray gun 10 and a drive assembly 20. The spray gun 10 includes a main pipe 11 and a branch pipe assembly. The lower end of the main pipe 11 is closed. The branch pipe assembly includes multiple branch pipes 12 for extending into the molten magnesium chloride in the reactor 1000. All branch pipes 12 are connected to the main pipe 11 and are spaced apart circumferentially along the main pipe 11. Each branch pipe 12 has a nozzle 12a for spraying titanium tetrachloride. The drive assembly 20 drives the spray gun 10 to move along the height direction.

[0037] The spray gun 10 is used to spray titanium tetrachloride, which is a raw material for the production of sponge titanium. Titanium tetrachloride is liquid at room temperature, while the reactor 1000 contains liquid magnesium and molten magnesium chloride. Due to their different densities, a layered structure is formed with liquid magnesium on top and magnesium chloride below. Liquid titanium tetrachloride is sprayed into the molten magnesium chloride through the nozzle 12a of the spray gun 10. Under high temperature, the liquid titanium tetrachloride is vaporized to form titanium tetrachloride gas. The titanium tetrachloride gas has a lower density and gradually rises to the interface between the liquid magnesium and molten magnesium chloride. The titanium tetrachloride reacts chemically with the liquid magnesium to form elemental titanium, releasing a large amount of heat. The formed elemental titanium, due to its higher density than molten magnesium chloride, gradually sinks to the bottom of the magnesium chloride. As the reaction proceeds, more and more elemental titanium accumulates at the bottom of the magnesium chloride and gradually rises, getting closer and closer to the bottom of the spray gun 10. This may cause the spray gun 10 to be encased in the elemental titanium at the bottom, clogging the nozzle 12a and preventing the spraying of titanium tetrachloride gas; it also makes it difficult to separate the spray gun 10 from the elemental titanium. Since the drive assembly 20 can drive the spray gun 10 to move along the height direction, when the distance between the top surface of the titanium product in the molten magnesium chloride and the bottom of the spray gun 10 is lower than the preset value, the drive assembly 20 can drive the spray gun 10 to rise, increasing the distance between the bottom of the main pipe 11 and the top surface of the elemental titanium, so that there is always a gap between the spray gun 10 and the elemental titanium at the bottom, and the spray hole 12a of the branch pipe 12 will not be blocked. There is also no need to separate the sponge titanium and the spray gun 10 separately, simplifying the operation.

[0038] Because branch pipe 12 is equipped with nozzles 12a, the titanium tetrachloride bubbles ejected from nozzles 12a, during their upward movement, stir the molten magnesium chloride and the interface between molten magnesium chloride and liquid magnesium, enhancing heat and mass transfer within the system, promoting a more uniform temperature distribution, and effectively avoiding localized overheating. This also inhibits abnormal high-temperature growth of titanium grains, causing the titanium deposition morphology to change from traditional sponge titanium to dense granular titanium. Granular titanium exhibits excellent fluidity in the magnesium chloride melt and can be discharged from the furnace bottom along with the reaction byproduct, molten magnesium chloride, enabling continuous production of sponge titanium.

[0039] Please see Figure 1 as well as Figure 2 Multiple branch pipes 12 are provided and distributed circumferentially along the main pipe 11. In this way, the multiple branch pipes 12 are arranged radially with the main pipe 11 as the center, which improves the uniformity of titanium tetrachloride bubbles and increases the reaction area and reaction rate.

[0040] In some embodiments, please refer to Figure 1 The branch pipe 12 is inclined, with its upper end connected to the main pipe 11 and its lower end freely positioned. Titanium can be generated at the interface between liquid magnesium and molten magnesium chloride, and gradually sinks into the molten magnesium chloride under gravity. Since the branch pipe 12 enters the molten magnesium chloride, the titanium particles may stick to the top side of the branch pipe 12. The inclined arrangement of the branch pipe 12 helps the titanium particles slide down to the bottom of the branch pipe 12, reducing the risk of them sticking and improving the yield of titanium particles. In other embodiments, the branch pipe 12 can also be horizontally positioned, still achieving stirring of the molten magnesium chloride and the interface between magnesium chloride and liquid magnesium, improving the temperature uniformity of the system, and ultimately controlling the size of the titanium particles within a smaller range.

[0041] In some embodiments, please refer to Figure 3 The lower end of the branch pipe 12 is open, and the opening 121 at the lower end of the branch pipe 12 forms a spray hole 12a. This means that gaseous titanium tetrachloride is sprayed from the lower end of the branch pipe 12, achieving stirring of the molten magnesium chloride and the interface between magnesium chloride and liquid magnesium, thus improving the uniformity of the system temperature. As the titanium particles fall, the molten magnesium chloride becomes an insulating layer that hinders further growth of the titanium product, controlling the size of the titanium particles within a small range. For other embodiments, please refer to... Figure 3The branch pipe 12 is provided with a through hole 123 communicating with its own cavity. The through hole 123 forms a nozzle 12a. That is to say, the through hole 123 at the beginning of the branch pipe 12 serves as a nozzle 12a, which can still achieve the purpose of promoting uniform distribution of bubbles, improving the temperature uniformity of the system, and inhibiting the further growth of titanium particles. In some embodiments, the lower end of the branch pipe 12 is open, and the branch pipe 12 is also provided with a through hole 123 communicating with its own cavity. The opening 121 and the through hole 123 at the lower end of the branch pipe 12 both serve as nozzles 12a, which can further increase the number of nozzles 12a, improve the uniformity of bubble distribution and temperature distribution, and promote the titanium deposition morphology to change from traditional sponge titanium to dense granular titanium.

[0042] In some embodiments, the through hole 123 is located on the lower side of the circumferential surface of the branch pipe 12. When titanium particles sink, they may fall onto the branch pipe 12. The location of the through hole 123 on the lower side of the circumferential surface of the branch pipe 12 can reduce the risk of titanium particles clogging the through hole 123 and ensure smooth production. In other embodiments, the through hole 123 can also be located on the side of the circumferential surface of the branch pipe 12, which can also reduce the risk of titanium particles clogging the through hole 123 to some extent.

[0043] In some embodiments, multiple through holes 123 are provided, such as two, three, or four, and the multiple through holes 123 are distributed at intervals along the axial direction of the branch pipe 12. Providing multiple through holes 123 means providing multiple spray holes 12a. The larger number of through holes 123 can increase the spray flow rate of titanium tetrachloride, further improve the uniformity of titanium tetrachloride airflow distribution, and control the particle size of titanium within a smaller range.

[0044] In some embodiments, please refer to Figure 3 Along the direction away from the main pipe 11, the diameter of the through holes 123 on the branch pipe 12 gradually increases. That is, the farther the through holes 123 are from the main pipe 11, the larger their diameter. The smaller holes closer to the main pipe 11 increase local flow resistance, limiting high-speed airflow and controlling the Reynolds number below the critical value. This prevents boundary layer separation caused by sudden expansion of titanium tetrachloride from the main pipe 11, effectively suppressing jets, eddies, and backflow, and reducing energy loss caused by abrupt changes. The larger holes farther from the main pipe 11 compensate for pressure attenuation caused by friction on the pipe wall, maintaining stable flow and making the flow velocity more uniform. Therefore, the gradient aperture design can improve the stability of airflow distribution. In other embodiments, the diameters of the multiple through holes 123 on the branch pipe 12 can also be the same, still achieving stirring of molten magnesium chloride and the interface between magnesium chloride and liquid magnesium, improving system temperature uniformity, and ultimately controlling the particle size of titanium within a small range.

[0045] In some embodiments, multiple branch pipe groups are provided, such as two, three, or four, arranged sequentially along the height direction. This improves the uniformity of titanium tetrachloride gas flow distribution. Of course, only one branch pipe group can be provided to achieve titanium tetrachloride injection.

[0046] In some embodiments, please refer to Figure 1 The main pipe 11 includes a first pipe section 111 and a second pipe section 112 coaxially connected, with a branch pipe group located in the second pipe section 112. The reactor 1000 is equipped with a furnace cover 50, and the spray gun 10 needs to pass through the sealing hole on the furnace cover 50. The main pipe 11 is configured as a separate first pipe section 111 and second pipe section 112. During production, the first pipe section 111 can be sealed and connected to the furnace cover 50 first, and then the second pipe section 112 can be connected to the first pipe section 111 to realize the connection between the spray gun 10 and the furnace cover 50. The branch pipe 12 is set on the second pipe section 112. During the production process, it is easy to come into contact with the phthalic acid particles, causing corrosion and wear to the branch pipe 12. In the case of corrosion and wear of the branch pipe 12, only the second pipe section 112 can be replaced without replacing the first pipe section 111, thus reducing equipment costs.

[0047] In some embodiments, please refer to Figure 4 The drive assembly 20 includes a drive component 21, a transmission component 22, and a first bracket 25. The drive component 21 is mounted on the first bracket 25 and has a rotatable output end. The upper end of the transmission component 22 is wound around the output end, and the lower end is connected to the spray gun 10. The drive component 21 can be a drive motor, with the output shaft of the drive motor forming the output end. Alternatively, the drive component 21 can be a drive motor with a roller, with the drive motor and roller connected in a transmission relationship, the roller forming the output end. The upper end of the transmission component 22 is wound around the output end. Therefore, when the output end of the drive component 21 rotates, the lower end of the transmission component 22 will rise or fall, thereby driving the spray gun 10 to rise or fall. In some embodiments, the drive assembly 20 can also be a hydraulic cylinder, with the telescopic end of the hydraulic cylinder connected to the spray gun 10 to achieve the lifting and lowering of the spray gun 10.

[0048] In some embodiments, the transmission component 22 is a traction rope 22a, and there are two sets of traction ropes 22a. The upper ends of both sets of traction ropes 22a are wound around the output end, and the winding direction is the same. The drive assembly 20 also includes a guide 23 and a mounting plate 24. The number of guides 23 is the same as the number of traction ropes 22a. The guides 23 are mounted on the first bracket 25. The middle part of the traction rope 22a is slidably engaged with the guide 23. The lower ends of the traction ropes 22a are respectively located on opposite sides of the mounting plate 24 and connected. The spray gun 10 is mounted in the middle of the mounting plate 24. By setting up a drive component 21 to drive the two sets of traction ropes 22a to rise and fall simultaneously, the number of parts can be reduced, and the stability of the spray gun 10 during the rising and falling process can be improved. The guide 23 can realize the reversal of the traction ropes 22a, so that the two sets of traction ropes 22a are distributed on both sides of the spray gun 10, and simultaneously drive the spray gun 10 to rise and fall. In specific implementations, the traction rope 22a can be a chain or a wire rope.

[0049] In other embodiments, there are two drive units 21 and two sets of traction ropes 22a. The drive units 21 and traction ropes 22a are arranged in a one-to-one correspondence. The upper end of the traction rope 22a is wrapped around the output end of the corresponding drive unit 21, and the lower end is connected to the mounting plate 24. That is to say, the two sets of traction ropes 22a are driven by their respective drive units 21, which can also achieve stable lifting and lowering of the spray gun 10.

[0050] In some embodiments, the guide member 23 is a guide pulley 23a, which is rolledly connected to the corresponding traction rope 22a, changing sliding to rolling. This reduces the friction between the guide member 23 and the traction rope 22a, thus improving the service life of the traction rope 22a. In other embodiments, the guide member 23 can also be a guide block with a guide groove. The traction rope 22a is slidably disposed within the guide groove, which also enables the reversing function of the traction rope 22a.

[0051] The spraying device may also include a storage unit 30, which may be a storage tank for storing liquid titanium tetrachloride. The storage unit 30 is connected to the spray gun 10 to supply liquid titanium tetrachloride to the spray gun 10.

[0052] Based on the same technical concept as the first aspect, the second aspect of this application provides a reactor 1000.

[0053] Please see Figure 5 as well as Figure 6 The titanium particle reactor 1000 provided in this application includes a furnace body 40, a furnace cover 50, and a blowing device according to any embodiment of the first aspect.

[0054] The furnace cover 50 is openable and closable with the furnace body 40. The furnace cover 50 is provided with a sealing hole. The upper part of the main pipe 11 is located outside the furnace body 40, the middle part passes through the sealing hole, the lower end is located inside the furnace body 40, and the branch pipe group is located inside the furnace body 40.

[0055] Since a vacuum is required inside the furnace body 40, a dynamic seal is needed between the spray gun 10 and the furnace cover 50. The sealing structure can include a sleeve, a sealing ring, and insulation cotton. The sleeve can be connected to the wall of the sealing hole, meaning the sleeve is located inside the sealing hole and coaxial with it. Both the upper and lower ends of the sleeve extend beyond the thickness of the furnace cover 50 on both sides. The insulation cotton and the sealing ring are located inside the sleeve, with the insulation cotton below the sealing ring. The insulation cotton and sealing ring are sealed around the first section 111 of the main pipe 11. The main pipe 11 can move relative to the insulation cotton and sealing ring along the height direction, with the insulation cotton below and the sealing ring above. This allows the insulation cotton to insulate the heat inside the furnace below, reducing the operating temperature of the sealing ring. Furthermore, the sleeve wall can also be provided with cooling channels for the flow of cooling medium, further reducing the operating temperature of the sealing ring.

[0056] The furnace cover 50 can be raised and lowered along the height direction to open and close the furnace cover 50, facilitating the connection of the first pipe section 111 to the furnace cover 50. In a specific implementation, the furnace cover 50 is connected to a second bracket (not shown in the figure), and the first bracket 25 and the second bracket are connected. The reactor 1000 may also include a lifting assembly, which acts on the first bracket 25 and / or the second bracket to realize the raising and lowering of the furnace cover 50, the blowing device, and the drive assembly 20 as a whole between a first position and a second position. When the furnace cover 50 is in the first position, the furnace cover 50 is open, at which time the second pipe section 112 can be removed, replaced, or performed. When the furnace cover 50 is in the second position, the furnace cover 50 closes the furnace body 40. The specific implementation structure of the lifting assembly can refer to the drive assembly 20, or a hydraulic cylinder can be used to achieve the lifting; this application is not limited to this.

[0057] In some embodiments, the radial projection component of the branch pipe 12 along the furnace body 40 is one-third to two-thirds of the radius of the furnace body 40. This ensures the uniformity of the gas flow distribution of titanium tetrachloride gas discharged through the through hole 123 and facilitates the raising and lowering of the second pipe section 112 without interfering with the furnace wall of the furnace body 40.

[0058] In some embodiments, the reactor 1000 further includes a position sensor for detecting the position of the top surface of the titanium particle deposit layer in the molten magnesium chloride. When the distance between the lower end of the spray gun 10 and the top surface of the titanium particle deposit layer in the molten magnesium chloride is less than a preset value, the spray gun 10 rises. The preset value can be 50 mm to 200 mm.

[0059] The position sensor and drive unit 21 are electrically connected to the controller, thereby realizing the automatic control of the lifting and lowering of the spray gun 10.

[0060] The working process of the spray gun 10 device provided in this application is as follows:

[0061] The branch pipe 12 of the spray gun 10 is lowered into the lower layer of molten magnesium chloride. Titanium tetrachloride is sprayed into the molten magnesium chloride through the branch pipe 12. The titanium tetrachloride vaporizes and gradually rises as bubbles to the interface between the molten magnesium chloride and the molten magnesium, where it undergoes a reduction reaction to form titanium and magnesium chloride. Titanium, being denser, gradually sinks, and the resulting magnesium chloride mixes with the original molten magnesium chloride. As the reaction proceeds, the titanium deposited in the molten magnesium chloride gradually rises. When the distance between the bottom of the spray gun 10 and the top of the deposited titanium is less than a preset value, the drive component 21 is activated, driving the spray gun 10 a certain distance through the transmission component 22 to continue the reduction reaction. The above steps are repeated, and the molten magnesium chloride gradually rises, as do the deposited titanium particles, until the height of the deposited titanium in the molten magnesium chloride reaches the set value. At this point, the drain port 41 of the reactor 1000 is opened to discharge the magnesium chloride and deposited titanium, thereby reducing the liquid level of the molten magnesium chloride and the weight of the titanium particles. Then, the drain port 41 is closed.

[0062] During the process of discharging magnesium chloride and deposited titanium, the drive component 21 is activated, which drives the spray gun 10 to descend to its original position through the transmission component 22. The process of raising the spray gun 10, discharging magnesium chloride, and lowering the spray gun 10 is repeated to achieve continuous titanium production.

[0063] In this application, the branch pipe 12 of the spray gun 10 is located within the MgCl2 melt layer and is 50mm to 200mm above the predicted titanium deposition layer. Liquid TiCl4 is injected into the MgCl2 melt layer, vaporizes to form bubbles, and rises to the molten magnesium layer to undergo a reduction reaction. During the reduction reaction, the spray gun 10 is gradually and passively raised as titanium deposition and molten magnesium chloride thicken, always keeping the branch pipe 12 submerged in the MgCl2 phase and far away from the titanium deposition layer, reducing the risk of the nozzle 12a of the branch pipe 12 being blocked and ensuring continuous production. This application uses a height-adjustable spray gun 10 to inject TiCl4, which can effectively improve the problem of difficult removal of sponge titanium agglomeration caused by local overheating in the reactor of the existing Kroll process for producing sponge titanium.

[0064] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0065] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", and "counterclockwise" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0066] In this application, unless otherwise expressly specified and limited, the terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0067] Furthermore, the use of terms such as "first" and "second" in this application is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, features defined with "first" or "second" may explicitly or implicitly include one or more features. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0068] Although embodiments of this application have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the claims and their equivalents.

Claims

1. A jet-blowing device, characterized in that, include: The spray gun includes a main pipe and a branch pipe assembly. The lower end of the main pipe is closed. The branch pipe assembly includes multiple branch pipes for extending into the molten magnesium chloride in the reactor. The multiple branch pipes are all connected to the main pipe and are distributed at intervals along the circumference of the main pipe. The branch pipes are provided with spray holes for spraying titanium tetrachloride. A drive assembly for driving the spray gun to move along the height direction.

2. The jetting device according to claim 1, characterized in that, The branch pipe is inclined, the upper end of the branch pipe is connected to the main pipe, the lower end of the branch pipe is open, and the branch pipe is provided with a through hole that communicates with its own lumen. The opening at the lower end of the branch pipe and / or the through hole serve as the spray hole.

3. The jetting device according to claim 2, characterized in that, The through hole is located on the lower side of the circumferential surface of the branch pipe; multiple through holes are provided, and the multiple through holes are distributed at intervals along the axial direction of the branch pipe.

4. The jetting device according to claim 2, characterized in that, Along the direction away from the main pipe, the diameter of the through hole on the branch pipe gradually increases.

5. The jetting device according to claim 4, characterized in that, The branch pipe group is provided in multiple ways, and the multiple branch pipe groups are arranged sequentially along the height direction.

6. The jetting device according to any one of claims 1-5, characterized in that, The main pipe includes a first pipe section and a second pipe section coaxially connected, and the branch pipe group is located in the second pipe section.

7. The jetting device according to any one of claims 1-5, characterized in that, The drive assembly includes a drive component and a transmission component. The drive component has a rotatable output end, and the upper end of the transmission component is wound around the output end, while the lower end is connected to the spray gun.

8. The jetting device according to claim 7, characterized in that, The transmission component is a traction rope, and the traction rope is provided in two sets. The upper ends of the two sets of traction ropes are wound around the output end, and the winding direction is the same. The drive assembly also includes guide members and a mounting plate. The number of guide members is the same as the number of traction ropes. The middle part of the traction rope is slidably engaged with the guide member. The lower ends of the traction rope are respectively connected to the opposite sides of the mounting plate. The spray gun is mounted in the middle of the mounting plate.

9. The jetting device according to claim 8, characterized in that, The guide component is a guide pulley, which is tumblingly connected to the corresponding traction rope.

10. A reactor for producing metallic titanium, characterized in that, include: The furnace body and the furnace cover are connected to the furnace body in an openable and closable manner, and the furnace cover is provided with a sealing hole; The jetting device according to any one of claims 1-9, wherein the upper part of the main pipe is located outside the furnace body, the middle part passes through the sealing hole, the lower end is located inside the furnace body, and the branch pipe assembly is located inside the furnace body; The projection component of the branch pipe along the radial direction of the furnace body is one-third to two-thirds of the radius of the furnace body.

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