A sponge titanium preparation device and process based on hydrogen-magnesium combined method

Abstract

The application relates to the technical field of titanium sponge preparation, in particular to a titanium sponge preparation device and process based on a hydrogen-magnesium combined method. The titanium sponge preparation device based on the hydrogen-magnesium combined method comprises a magnesium reduction chamber, a stirring shaft, multiple groups of staggered stirring plates, a hydrogen pre-reduction chamber, a square pipeline, a first rotating pipe, four spoiler plates, multiple groups of nozzles, a reciprocating assembly, an adjusting assembly, a driving assembly, a baffle and an electric push rod. The stirring shaft is rotationally connected to the bottom end of the magnesium reduction chamber, the stirring plate is rotationally connected to the stirring shaft, the square pipeline is connected between the two chambers, the first rotating pipe is rotationally connected to the hydrogen pre-reduction chamber, the spoiler plate is connected to the top end of the first rotating pipe, the nozzle is fixedly connected to the spoiler plate, the reciprocating assembly and the adjusting assembly are respectively arranged in the two chambers, the baffle is connected to the magnesium reduction chamber, and the electric push rod is connected to the baffle. The titanium sponge preparation device and process based on the hydrogen-magnesium combined method have the advantages of reducing raw material cost, improving the purity and preparation efficiency of the titanium sponge, reducing energy consumption and operation complexity.

Description

Technical Field

[0001] This invention relates to the field of sponge titanium preparation technology, and in particular to a sponge titanium preparation apparatus and process based on the hydrogen-magnesium combined method. Background Technology

[0002] Currently, the mainstream traditional processes in the preparation of sponge titanium can be divided into two categories, both of which have significant technical limitations. One category is the traditional magnesiothermal reduction process, which directly uses metallic magnesium as a reducing agent to react with titanium tetrachloride under high temperature conditions to prepare elemental titanium; its core problem lies in the fact that titanium tetrachloride (Ti) 4+ It needs to directly gain 4 electrons through the reducing properties of magnesium to transform into elemental titanium (Ti). 0 The high demand for electron transfer leads to persistently high magnesium consumption, significantly increasing raw material costs. Furthermore, the reaction process is prone to localized aggregation and poor mixing uniformity, affecting not only the yield of elemental titanium but also potentially introducing impurities due to excessive localized reactions, thus reducing product purity. Another approach is direct hydrogen reduction, which theoretically reduces titanium tetrachloride to elemental titanium directly using the reducing properties of hydrogen. However, this reaction requires extremely high temperatures (far exceeding the tolerance limits and energy consumption control range of conventional industrial equipment), and is currently only feasible in small-scale laboratory trials, failing to meet the demands of large-scale industrial production and thus hindering its practical application. Neither of these traditional processes can balance the three core requirements of "large-scale production," "low cost," and "high purity," thus restricting the efficient development of the sponge titanium industry.

[0003] Furthermore, existing sponge titanium preparation equipment also has some shortcomings in practical applications, taking the magnesiothermal reduction method (Kroll method) as an example. The magnesium reduction chamber has incomplete and inefficient discharge. In existing devices, the stirring plates are mostly designed with a fixed angle. After the reaction is completed, the stirring angle cannot be adjusted according to the discharge requirements. As a result, the reaction products (including solution and solid elemental titanium) at the bottom of the magnesium reduction chamber are difficult to be fully pushed out. This leads to a decrease in material utilization and requires additional cleaning of residual materials, which prolongs the production cycle. At the same time, residual materials may also interfere with the stability of subsequent batches of reaction and increase equipment maintenance costs.

[0004] Therefore, it is necessary to provide a new sponge titanium preparation device and process based on the hydrogen-magnesium combined method to solve the above-mentioned technical problems. Summary of the Invention

[0005] To address the aforementioned technical problems, this invention provides an apparatus and process for preparing sponge titanium based on a hydrogen-magnesium combined method.

[0006] The sponge titanium preparation apparatus based on the hydrogen-magnesium combined method provided by this invention includes: a magnesium reduction chamber, with a stirring shaft rotatably connected to the bottom of the magnesium reduction chamber; multiple sets of stirring plates are rotatably connected at equal intervals to the outer wall of the stirring shaft, and the multiple sets of stirring plates are arranged alternately; a hydrogen pre-reduction chamber is provided on one side of the magnesium reduction chamber; a square pipe is provided between the magnesium reduction chamber and the hydrogen pre-reduction chamber, one end of the square pipe is connected to the bottom side wall of the hydrogen pre-reduction chamber, and the other end is connected to the top side wall of the magnesium reduction chamber; a first rotating tube is rotatably connected inside the hydrogen pre-reduction chamber, and the side wall of the top of the first rotating tube is rotatably connected at equal intervals. Four baffles are connected to the hydrogen pre-reduction chamber to agitate the airflow. Multiple nozzles are fixedly connected at equal intervals on one side of each baffle. A reciprocating assembly is installed inside the hydrogen pre-reduction chamber to drive the baffles to rotate back and forth to swing the nozzles. A baffle is hinged to the bottom of the magnesium reduction chamber on the side away from the hydrogen pre-reduction chamber to close the magnesium reduction chamber. An adjusting assembly is installed inside the magnesium reduction chamber to adjust the angle of the stirring plate. A drive assembly is installed at the bottom of the hydrogen pre-reduction chamber to drive the first rotating tube and the stirring shaft to rotate.

[0007] Preferably, a second rotating tube is fixedly connected inside the spoiler, the second rotating tube is rotatably connected to the first rotating tube, and the second rotating tube communicates with the first rotating tube, and the nozzle is communicated with the second rotating tube.

[0008] Preferably, the reciprocating assembly includes: four friction rings, each fixedly mounted on one end of a corresponding spoiler near the first rotating tube; the four spoilers are arranged in two rows, two in each row; an outer friction disk is provided above the upper row of spoilers and below the lower row of spoilers; an inner friction disk is provided between the two rows of spoilers; both the inner and outer friction disks are fixedly connected to mounting plates, and both ends of the mounting plates are fixedly connected to the inner wall of the hydrogen pre-reduction chamber; two first friction blocks are symmetrically fixedly connected to the side of the outer friction disk facing the friction rings, and two second friction blocks are symmetrically fixedly connected to the upper and lower sides of the inner friction disk; the projections of the first and second friction blocks in the horizontal direction are staggered.

[0009] Preferably, the adjusting component includes: a first rotating shaft, which is fixedly disposed at one end of the stirring plate, and the end of the first rotating shaft away from the stirring plate is inserted into the stirring shaft and rotatably connected to the stirring shaft; multiple sets of driving and driven conical wheels are equidistantly arranged inside the stirring shaft, and the driving and driven conical wheels are respectively fixedly connected to the corresponding first rotating shaft; a second rotating shaft is rotatably connected inside the stirring shaft, and multiple sets of intermediate conical wheels are equidistantly fixedly connected to the outer wall of the second rotating shaft, and the two sides of the intermediate conical wheels are respectively engaged with the driving and driven conical wheels.

[0010] Preferably, a first gear is fixedly connected to the outer wall of the first rotating shaft that is fixedly connected to the active cone wheel; the first gear is alternately set in two ways: the axial direction is horizontal and the axial direction is vertical; the inside of the stirring shaft is provided with a special-shaped rack, which meshes with the first gear; the two ends of the special-shaped rack are respectively fixedly connected to a first slider and a second slider, and both the first slider and the second slider are slidably connected to the stirring shaft.

[0011] Preferably, the irregularly shaped rack includes: multiple sets of first racks, multiple sets of second racks, and multiple sets of connecting plates. The first racks are fixedly disposed on one side of the top of the connecting plates, and the second racks are fixedly disposed on the bottom of the connecting plates. Each first rack, second rack, and connecting plate constitutes a rack group, and multiple rack groups are sequentially fixedly connected. The first rack meshes with a first gear that is horizontal in the axial direction, and the second rack meshes with a first gear that is vertical in the axial direction. The first slider is fixedly connected to the first rack, and the second slider is fixedly connected to the connecting plates and the second rack.

[0012] Preferably, the drive assembly includes: a second gear, which is fixedly mounted at the bottom end of the first rotating tube; a third rotating shaft is rotatably connected to the bottom end of the hydrogen pre-reduction chamber; a third gear is fixedly connected to the top end of the third rotating shaft; the second gear meshes with the third gear; a first conical wheel is fixedly connected to the side wall at the bottom end of the third rotating shaft; one end of the stirring shaft extends out of the magnesium reduction chamber and is fixedly connected to the second conical wheel; the first conical wheel meshes with the second conical wheel; a motor is provided at the bottom of the hydrogen pre-reduction chamber; the output end of the motor is fixedly connected to the third rotating shaft; four support legs are fixedly connected to the bottom of both the hydrogen pre-reduction chamber and the magnesium reduction chamber; and the motor is fixedly connected to the support legs via a fixing plate.

[0013] Preferably, a turntable is fixedly connected to the end of the first slider away from the magnesium reduction chamber, and an insertion rod is fixedly connected to the middle of the turntable. The end of the insertion rod away from the turntable is slidably connected to the second rotating shaft. A drive plate is fixedly connected to the side of the baffle away from the magnesium reduction chamber. A fourth rotating shaft is rotatably connected to the end of the drive plate away from the baffle. A connecting rod is fixedly connected to one end of the fourth rotating shaft. The top end of the connecting rod is rotatably connected to the turntable. An electric push rod is rotatably connected to the side of the magnesium reduction chamber near the turntable. The output end of the electric push rod is rotatably connected to the fourth rotating shaft.

[0014] Preferably, a hydrogen inlet is fixedly connected to the top of the hydrogen pre-reduction chamber, and an exhaust port is fixedly connected to one side of the hydrogen pre-reduction chamber; a feed inlet is fixedly connected to the top of the magnesium reduction chamber.

[0015] A process for preparing sponge titanium based on the hydrogen-magnesium combined method includes the following steps:

[0016] S1. In the initial state, the baffle is closed to seal the magnesium reduction chamber, and the square pipe is closed to isolate the magnesium reduction chamber and the hydrogen pre-reduction chamber; the stirring plate is parallel to the axis of the stirring shaft.

[0017] S2. Hydrogen gas is introduced into the hydrogen pre-reduction chamber through the hydrogen inlet. After other gases in the hydrogen pre-reduction chamber are discharged, titanium tetrachloride vapor is introduced through the first rotating tube. Hydrogen gas is used to reduce titanium tetrachloride to titanium dichloride. The solid titanium dichloride will fall to the bottom of the hydrogen pre-reduction chamber. During this process, the temperature in the hydrogen pre-reduction chamber is controlled at 650-750℃.

[0018] S3. During the process of introducing titanium tetrachloride vapor, the first rotating tube and the stirring shaft are driven to rotate by the driving component. During the rotation of the first rotating tube, the first rotating tube drives the baffle to revolve around the axis of the first rotating tube. At the same time, the baffle will contact the reciprocating component during the revolution. Under the action of the reciprocating component, the baffle will reciprocate and rotate.

[0019] S4. After the hydrogen pre-reduction chamber reaction is completed, liquid magnesium is added to the magnesium reduction chamber through the feed inlet. The square pipe is opened, and solid titanium dichloride enters the magnesium reduction chamber through the square pipe. The solid titanium dichloride reacts with the liquid magnesium to generate elemental titanium. The temperature in the magnesium reduction chamber is controlled at 800-900℃ during this process.

[0020] S5. After the reaction in the magnesium reduction chamber is completed, the baffle is opened by the drive component. During the opening process, the angle of the stirring plate is adjusted in conjunction with the adjustment component. Under the action of the stirring shaft, the stirring plate pushes the solution and solid at the bottom of the magnesium reduction chamber out of the baffle opening.

[0021] Compared with related technologies, the sponge titanium preparation apparatus and process based on the hydrogen-magnesium combined method provided by the present invention have the following beneficial effects:

[0022] I. Reduce raw material consumption and production costs, and improve resource recycling rate.

[0023] This invention relies on a combined process of "hydrogen pre-reduction - magnesium final reduction" to fundamentally solve the problem of excessive magnesium usage in traditional magnesium thermal reduction processes: hydrogen is first used to pre-reduce titanium tetrachloride (Ti) at 650-750℃. 4+ ) is reduced to titanium dichloride (Ti 2 + This reduces the amount of electrons transferred required for subsequent magnesium reduction from 4e - Reduced to 2e - Theoretically, this reduces magnesium consumption by 50%, significantly lowering the procurement cost of core raw materials. Simultaneously, the high-purity hydrogen chloride byproduct generated during the hydrogen pre-reduction stage can be sold directly or electrolyzed to generate chlorine for reuse in the boiling chlorination process. Unreacted hydrogen can also be recovered for the hydrogen pre-reduction process, achieving a closed-loop cycle of "raw materials-byproducts-recycled materials," reducing resource waste and further lowering overall production costs. Furthermore, the unit uses square pipelines for directional transport of titanium dichloride, avoiding material loss during transfer and improving raw material utilization.

[0024] II. Enhance reaction mixing uniformity to improve the efficiency and purity of sponge titanium preparation.

[0025] This invention optimizes the reaction environment through multi-structure synergy: In the hydrogen pre-reduction chamber, the driving component drives the first rotating tube to revolve, while the reciprocating components (friction ring, outer friction disk, inner friction disk, etc.) force the baffle to reciprocate around the second rotating tube, causing the nozzle to oscillate. This creates a dual mixing effect of "revolutionary disturbance + rotational oscillation" between titanium tetrachloride vapor and hydrogen, avoiding gas stratification or local stagnation, and ensuring the Ti... 4+ Fully restored to Ti 2+ This reduces the interference of unreacted titanium tetrachloride entering the magnesium reduction chamber. In the magnesium reduction chamber, the stirring plate is initially parallel to the stirring shaft axis, covering the entire bottom of the chamber. This prevents titanium dichloride from being pushed to an angle, ensuring uniform contact between liquid magnesium and titanium dichloride. After the reaction is completed, the stirring plate rotates 30° during discharge to further promote the mixing and reaction of the materials. This not only increases the reaction rate (shortening the overall preparation cycle) but also avoids the decrease in product purity caused by insufficient local reaction, ensuring the stability of sponge titanium purity.

[0026] Third, achieve coordinated operation of power and operation to reduce energy consumption and operational complexity.

[0027] In the drive assembly, a single motor drives the first rotating tube of the hydrogen pre-reduction chamber and the stirring shaft of the magnesium reduction chamber simultaneously via a third rotating shaft, gears (second and third gears), and conical wheels (first and second conical wheels). This eliminates the need for multiple additional motors, significantly reducing equipment energy consumption and circuit control complexity. During the discharge stage, when the electric push rod opens the baffle, the stirring plate rotates synchronously by 30° through the drive plate, connecting rod, and turntable linkage adjustment assembly. This achieves integrated operation of "baffle opening - stirring plate angle adjustment - material pushing," eliminating the need for manual adjustment of the stirring angle, reducing operation steps and human intervention, lowering the error rate, and improving the automation and continuity of the production process. Attached Figure Description

[0028] Figure 1 A schematic diagram of the structure of the sponge titanium preparation device based on the hydrogen-magnesium combined method provided by the present invention;

[0029] Figure 2 for Figure 1 A schematic diagram of the cross-sectional structure of the hydrogen reduction chamber shown;

[0030] Figure 3 for Figure 2 The diagram shows the structure of the first rotating tube.

[0031] Figure 4 for Figure 3 The diagram shows the structure of the spoiler.

[0032] Figure 5 for Figure 4 The diagram shows the structure of the external friction disk.

[0033] Figure 6 for Figure 4 A schematic diagram of the cross-sectional structure of the spoiler shown;

[0034] Figure 7 for Figure 1 The diagram shows the structure of the other side of the magnesium reduction chamber.

[0035] Figure 8 for Figure 7 A schematic diagram of the cross-sectional structure of the magnesium reduction chamber shown;

[0036] Figure 9 for Figure 8 A schematic diagram of the cross-sectional structure of the stirring shaft shown;

[0037] Figure 10 for Figure 9 One of the schematic diagrams of the structure at the left end of the stirring shaft shown;

[0038] Figure 11 for Figure 10 The second schematic diagram of the structure at the left end of the stirring shaft is shown.

[0039] Figure 12 for Figure 9 The diagram shows the structure of the irregularly shaped rack.

[0040] Figure 13 for Figure 8 The diagram shows the structure of the drive board.

[0041] Figure 14 for Figure 13 A schematic diagram of the cross-sectional structure of the drive board shown;

[0042] Figure 15 for Figure 14 A schematic diagram of the cross-sectional structure of the second rotating shaft shown;

[0043] Figure 16 for Figure 1 The diagram shows the process flow chart of the sponge titanium preparation apparatus based on the hydrogen-magnesium combined method.

[0044] Labels in the diagram: 1. Magnesium reduction chamber; 2. Stirring shaft; 3. Stirring plate; 4. Hydrogen pre-reduction chamber; 5. Square pipe; 6. First rotating tube; 7. Baffle plate; 8. Nozzle; 9. Baffle; 10. Second rotating tube; 11. Friction ring; 12. Outer friction disc; 13. Inner friction disc; 14. Mounting plate; 15. First friction block; 16. Second friction block; 17. First rotating shaft; 18. Driving conical wheel; 19. Driven conical wheel; 20. Second rotating shaft; 21. Intermediate conical wheel; 22. First tooth 23. Wheel; 24. Irregularly shaped rack; 25. First slider; 26. Second slider; 27. First rack; 28. Second rack; 29. ​​Connecting plate; 30. Second gear; 31. Third shaft; 32. First conical wheel; 33. Second conical wheel; 34. Motor; 35. Fixing plate; 36. Turntable; 37. Insert rod; 38. Drive plate; 39. Fourth shaft; 40. Connecting rod; 41. Electric push rod; 42. Hydrogen inlet; 43. Exhaust port; 44. Feed inlet. Detailed Implementation

[0045] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely for explaining the invention and are not intended to limit the invention.

[0046] The specific implementation of the present invention will be described in detail below with reference to specific embodiments.

[0047] like Figures 1 to 15As shown, a sponge titanium preparation apparatus based on the hydrogen-magnesium combined method is disclosed. The apparatus includes: a magnesium reduction chamber 1, with a stirring shaft 2 rotatably connected to the bottom of the magnesium reduction chamber 1; multiple sets of stirring plates 3 are rotatably connected at equal intervals to the outer wall of the stirring shaft 2, and the multiple sets of stirring plates 3 are staggered; a hydrogen pre-reduction chamber 4 is provided on one side of the magnesium reduction chamber 1; a square pipe 5 is provided between the magnesium reduction chamber 1 and the hydrogen pre-reduction chamber 4, one end of the square pipe 5 communicating with the bottom side wall of the hydrogen pre-reduction chamber 4, and the other end communicating with the top side wall of the magnesium reduction chamber 1; a first rotating tube 6 is rotatably connected inside the hydrogen pre-reduction chamber 4, and four baffles 7 are rotatably connected at equal intervals to the side wall of the top of the first rotating tube 6, the baffles 7 being used to agitate the hydrogen pre-reduction chamber 4. The airflow inside; multiple sets of nozzles 8 are fixedly connected at equal intervals on one side of the baffle 7; a reciprocating assembly is installed inside the hydrogen pre-reduction chamber 4, which is used to drive the baffle 7 to reciprocate and rotate to swing the nozzles 8; a baffle 9 is rotatably connected to the bottom of the side of the magnesium reduction chamber 1 away from the hydrogen pre-reduction chamber 4 by a hinge, which is used to close the magnesium reduction chamber 1; an adjusting assembly is installed inside the magnesium reduction chamber 1, which is used to adjust the angle of the stirring plate 3; a driving assembly is installed at the bottom of the hydrogen pre-reduction chamber 4, which is used to drive the first rotating tube 6 and the stirring shaft 2 to rotate; a hydrogen inlet 42 is fixedly connected to the top of the hydrogen pre-reduction chamber 4, and an exhaust port 43 is fixedly connected to one side of the hydrogen pre-reduction chamber 4; a feed inlet 44 is fixedly connected to the top of the magnesium reduction chamber 1.

[0048] Theoretically, hydrogen can directly reduce titanium tetrachloride, but the required temperature is extremely high and currently difficult to achieve. However, at 600℃-800℃, hydrogen can reduce titanium tetrachloride to titanium dichloride, and then metallic magnesium can reduce titanium dichloride back to elemental titanium. This is because hydrogen pre-reduces the Ti... 4 Restored to Ti 2+ The demand for magnesium reduction electron transfer is halved (from 4e). - →2e - Theoretically, magnesium consumption can be reduced by 50%. Using titanium dichloride, saving 50% on magnesium consumption can reduce production costs by 8000 yuan. Alternatively, the Cambridge FFC electrolysis method can be referenced to produce metallic titanium using titanium dichloride, further reducing costs. In actual production, hydrogen is used in excess by 50%, with hydrogen consumption per unit volume for titanium dichloride production approximately 0.5 tons and a cost of approximately 750 yuan. The byproduct is high-purity hydrogen chloride, which can be sold directly or electrolyzed. The generated chlorine is recovered to the boiling chlorination process, and the hydrogen is recovered to the hydrogen pre-reduction process. Hydrogen pre-reduction is an endothermic reaction; if it can be combined with the exothermic reaction of subsequent magnesium thermal reduction, the energy consumption of the hydrogen pre-reduction process can be greatly reduced. Then, metallic magnesium is used to reduce the hydrogen-pre-reduced titanium. The essence of the magnesium thermal reduction process is a redox reaction at high temperatures. Magnesium, as an alkali metal, is used to reduce tetravalent titanium (Ti). 4+ ) is reduced to elemental titanium (Ti 0The process involves the change of valence state. However, the change in valence state is not instantaneous, but rather a gradual change in valence state during the gradual transfer of electrons. The difficulty of reduction increases as the valence state decreases.

[0049] The entire device is based on a magnesium reduction chamber 1 and a hydrogen pre-reduction chamber 4 as core reaction units. The two chambers are connected by a square pipe 5 (initially, the square pipe 5 is closed by an internal valve to isolate the two chambers and prevent initial gas / material mixing; the valve is a mature existing technology). The bottom of the magnesium reduction chamber 1 is rotatably connected to a stirring shaft 2. Multiple sets of staggered stirring plates 3 are rotatably connected to the outer wall of the stirring shaft 2 at equal intervals (initially, the stirring plates 3 are parallel to the axis of the stirring shaft 2 and do not participate in stirring). The bottom side of the magnesium reduction chamber 1 away from the hydrogen pre-reduction chamber 4 is rotatably connected to a baffle 9 via a hinge (initially, the baffle 9 is closed to seal the magnesium reduction chamber 1 and prevent material leakage). The top of the magnesium reduction chamber 1 is provided with a feed inlet 44 (for adding liquid magnesium into the chamber). The hydrogen pre-reduction chamber 4 is rotatably connected to a first rotating tube 6, which is externally connected to a distillation device (the distillation device is a mature existing technology and is not shown in the accompanying drawings). The distillation apparatus introduces titanium tetrachloride vapor into the first rotating tube 6. Four baffles 7 (used to disturb the airflow inside the chamber) are equidistantly rotatably connected to the top side wall of the first rotating tube 6. Multiple sets of nozzles 8 (used to spray out titanium tetrachloride vapor) are fixed equidistantly on one side of the baffles 7. The hydrogen pre-reduction chamber 4 is equipped with a hydrogen inlet 42 (used to introduce hydrogen) at the top and an exhaust port 43 (used to exhaust excess gas or reaction tail gas) on one side. The bottom of both the hydrogen pre-reduction chamber 4 and the magnesium reduction chamber 1 are fixedly connected with four support legs (used to support the entire apparatus). A reciprocating assembly is installed inside the hydrogen pre-reduction chamber 4 (used to drive the baffles 7 to reciprocate and rotate), an adjusting assembly is installed inside the magnesium reduction chamber 1 (used to adjust the angle of the stirring plate 3), and a driving assembly is installed at the bottom of the hydrogen pre-reduction chamber 4 (used to drive the first rotating tube 6 and the stirring shaft 2 to rotate). All the components work together to form a closed reaction system of "pre-reduction-final reduction", providing a hardware foundation for the preparation of sponge titanium.

[0050] The hydrogen chloride gas discharged from the hydrogen pre-reduction chamber can be sold externally or electrolyzed by an external electrolysis device (the electrolysis device is a mature existing technology, not shown in the accompanying drawings of this invention). The generated chlorine gas is recovered to the boiling chlorination process, and the hydrogen gas is recovered to the hydrogen pre-reduction process.

[0051] like Figures 2 to 6As shown, a second rotating tube 10 is fixedly connected inside the spoiler 7. The second rotating tube 10 is rotatably connected to the first rotating tube 6 and communicates with the first rotating tube 6. The nozzle 8 is also connected to the second rotating tube 10. The reciprocating assembly includes: friction rings 11, four friction rings 11 are respectively fixedly installed at the end of the corresponding spoiler 7 near the first rotating tube 6; the four spoilers 7 are divided into two rows, two in each row; an outer friction disk 12 is provided above the upper row of spoilers 7 and below the lower row of spoilers 7; an inner friction disk 13 is provided between the two rows of spoilers 7; both the inner friction disk 13 and the outer friction disk 12 are fixedly connected to mounting plates 14, and both ends of the mounting plates 14 are fixedly connected to the inner wall of the hydrogen pre-reduction chamber 4; two first friction blocks 15 are symmetrically fixedly connected to the side of the outer friction disk 12 facing the friction ring 11, and two second friction blocks 16 are symmetrically fixedly connected to the upper and lower sides of the inner friction disk 13; the projections of the first friction blocks 15 and the second friction blocks 16 in the horizontal direction are staggered.

[0052] The second rotating tube 10 is fixedly connected inside the baffle 7. The second rotating tube 10 is rotatably connected to and communicates with the first rotating tube 6. The nozzle 8 is connected to the second rotating tube 10 (ensuring that the titanium tetrachloride vapor in the first rotating tube 6 can be ejected sequentially through the second rotating tube 10 and the nozzle 8). The four baffles 7 are divided into two rows (two in each row). The top and bottom of the two rows of baffles 7 are provided with outer friction disks 12, and the middle is provided with inner friction disks 13. Both the inner friction disks 13 and the outer friction disks 12 are fixed to the inner wall of the hydrogen pre-reduction chamber 4 by mounting plates 14. Two first friction disks are symmetrically fixed on the side of the outer friction disks 12 facing the friction ring 11. Block 15, two second friction blocks 16 are symmetrically fixed on the upper and lower sides of the inner friction disk 13 (the horizontal projections of the first friction block 15 and the second friction block 16 are staggered); when the first rotating tube 6 drives the baffle 7 to revolve around its axis, the friction ring 11 on the baffle 7 will alternately contact the first friction block 15 of the outer friction disk 12 and the second friction block 16 of the inner friction disk 13 - when in contact, the friction block generates a reverse friction force on the friction ring 11, forcing the baffle 7 to reciprocate around the axis of the second rotating tube 10, thereby driving the nozzle 8 to swing, so as to achieve full mixing of the airflow and titanium tetrachloride vapor in the hydrogen pre-reduction chamber 4.

[0053] like Figure 1 , Figure 2 , Figure 3 , Figure 7As shown, the drive assembly includes: a second gear 29, which is fixedly mounted at the bottom of the first rotating tube 6; a third rotating shaft 30 is rotatably connected to the bottom of the hydrogen pre-reduction chamber 4; a third gear 31 is fixedly connected to the top of the third rotating shaft 30; the second gear 29 meshes with the third gear 31; a first conical wheel 32 is fixedly connected to the side wall at the bottom of the third rotating shaft 30; one end of the stirring shaft 2 extends out of the magnesium reduction chamber 1 and is fixedly connected to a second conical wheel 33; the first conical wheel 32 meshes with the second conical wheel 33; a motor 34 is provided at the bottom of the hydrogen pre-reduction chamber 4; the output end of the motor 34 is fixedly connected to the third rotating shaft 30; four support legs are fixedly connected to the bottom of both the hydrogen pre-reduction chamber 4 and the magnesium reduction chamber 1; and the motor 34 is fixedly connected to the support legs via a fixing plate 35.

[0054] In the drive assembly, the motor 34 is fixed to the support leg via the fixing plate 35, and the output end of the motor 34 is fixedly connected to the third rotating shaft 30. The top of the third rotating shaft 30 is fixed with a third gear 31, and the bottom of the first rotating tube 6 is fixed with a second gear 29 (the second gear 29 meshes with the third gear 31). After the motor 34 starts, it drives the third rotating shaft 30 to rotate. The third rotating shaft 30 drives the first rotating tube 6 to rotate through the third gear 31 and the second gear 29. At the same time, the bottom side wall of the third rotating shaft 30 is fixed with a first conical wheel 32, and one end of the stirring shaft 2 extends out of the magnesium reduction chamber 1 and is fixed with a second conical wheel 33 (the first conical wheel 32 meshes with the second conical wheel 33). When the third rotating shaft 30 rotates, it drives the stirring shaft 2 to rotate synchronously through the first conical wheel 32 and the second conical wheel 33, realizing the power integration of "a single motor 34 driving the first rotating tube 6 to revolve and the stirring shaft 2 to rotate".

[0055] like Figures 8 to 12As shown, the adjustment assembly includes: a first rotating shaft 17, which is fixedly disposed at one end of the stirring plate 3, and the end of the first rotating shaft 17 away from the stirring plate 3 is inserted into the stirring shaft 2 and rotatably connected to the stirring shaft 2; multiple sets of active cone wheels 18 and driven cone wheels 19 are equidistantly arranged inside the stirring shaft 2, and the active cone wheels 18 and driven cone wheels 19 are respectively fixedly connected to the corresponding first rotating shaft 17; a second rotating shaft 20 is rotatably connected inside the stirring shaft 2, and multiple sets of intermediate cone wheels 21 are equidistantly fixedly connected to the outer wall of the second rotating shaft 20, and the two sides of the intermediate cone wheels 21 are respectively engaged with the active cone wheels 18 and driven cone wheels 19. A first gear 22 is fixedly connected to the outer wall of the first rotating shaft 17, which is fixedly connected to the active conical wheel 18; the first gear 22 is alternately arranged in two ways: the axial direction is horizontal and the axial direction is vertical; the inside of the stirring shaft 2 is provided with a special-shaped rack 23, which meshes with the first gear 22; the two ends of the special-shaped rack 23 are respectively fixedly connected to the first slider 24 and the second slider 25, and both the first slider 24 and the second slider 25 are slidably connected to the stirring shaft 2. The irregular rack 23 includes: multiple sets of first racks 26, multiple sets of second racks 27, and multiple sets of connecting plates 28. The first racks 26 are fixedly disposed on one side of the top of the connecting plate 28, and the second racks 27 are fixedly disposed on the bottom of the connecting plate 28. Each set of first racks 26, second racks 27, and connecting plate 28 constitutes a rack set, and multiple rack sets are fixedly connected in sequence. The first racks 26 mesh with the first gear 22 which is horizontal in the axial direction, and the second racks 27 mesh with the first gear 22 which is vertical in the axial direction. The first slider 24 is fixedly connected to the first rack 26, and the second slider 25 is fixedly connected to the connecting plate 28 and the second rack 27.

[0056] In the initial state, the stirring plate 3 is parallel to the axis of the stirring shaft 2. This parallel arrangement in the initial state allows the stirring plate 3 to be more in line with the material flow direction in the initial stage of the rotation of the stirring shaft 2, reducing material resistance. At the same time, it ensures that the stirring range covers the entire bottom area of ​​the magnesium reduction chamber 1, laying the foundation for uniform stirring in the subsequent reaction process. In addition, this arrangement also avoids the stirring plate 3 from tilting, which would cause the solids to be pushed to a corner of the bottom of the magnesium reduction chamber 1.

[0057] One end of the stirring plate 3 is fixed to a first rotating shaft 17. The end of the first rotating shaft 17 away from the stirring plate 3 is inserted into the stirring shaft 2 and rotatably connected to it. Multiple sets of driving conical wheels 18 and driven conical wheels 19 are equidistantly arranged inside the stirring shaft 2 (each fixedly connected to the corresponding first rotating shaft 17). A second rotating shaft 20 is rotatably connected inside the stirring shaft 2. Multiple sets of intermediate conical wheels 21 are equidistantly fixed to the outer wall of the second rotating shaft 20 (the two sides of the intermediate conical wheels 21 mesh with the driving conical wheels 18 and the driven conical wheels 19, respectively). A first gear 22 is fixed to the outer wall of the first rotating shaft 17, which is fixed to the driving conical wheels 18. A special-shaped rack 23 is provided inside the stirring shaft 2 (meshing with the first gear 22). The special-shaped rack 23 is composed of multiple sets of "first rack 26 + second rack 27 + connecting plate 28" (the first rack 26 is fixed to the top of the connecting plate 28). On one side, the second rack 27 is fixed to the bottom of the connecting plate 28, the first rack 26 meshes with the first gear 22 which is horizontal in the axial direction, and the second rack 27 meshes with the first gear 22 which is vertical in the axial direction. The two ends of the irregular rack 23 are respectively fixed with the first slider 24 and the second slider 25 (both of which are slidably connected to the stirring shaft 2). When the first slider 24 is pushed by an external force, it drives the irregular rack 23 to slide along the stirring shaft 2 axially. The irregular rack 23 drives the first gear 22 in different directions to rotate through the first rack 26 and the second rack 27. The first gear 22 drives the first rotating shaft 17 to rotate. The first rotating shaft 17 transmits power through the driving cone wheel 18, the intermediate cone wheel 21 and the driven cone wheel 19, so that all the stirring plates 3 rotate synchronously around the corresponding first rotating shaft 17, thereby realizing the angle adjustment of the stirring plates 3.

[0058] like Figures 13 to 15 As shown, a turntable 36 is fixedly connected to the end of the first slider 24 away from the magnesium reduction chamber 1. A rod 37 is fixedly connected to the middle of the turntable 36. The end of the rod 37 away from the turntable 36 is slidably connected to the second rotating shaft 20. A drive plate 38 is fixedly connected to the side of the baffle 9 away from the magnesium reduction chamber 1. A fourth rotating shaft 39 is rotatably connected to the end of the drive plate 38 away from the baffle 9. A connecting rod 40 is fixedly connected to one end of the fourth rotating shaft 39. The top end of the connecting rod 40 is rotatably connected to the turntable 36. An electric push rod 41 is rotatably connected to the side of the magnesium reduction chamber 1 near the turntable 36. The output end of the electric push rod 41 is rotatably connected to the fourth rotating shaft 39.

[0059] The first slider 24 has a turntable 36 fixed at its end away from the magnesium reduction chamber 1. A rod 37 is fixed in the middle of the turntable 36 (the end of the rod 37 away from the turntable 36 is slidably connected to the second rotating shaft 20 to ensure that the movement of the turntable 36 does not affect the rotation of the second rotating shaft 20). A drive plate 38 is fixed on the side of the baffle 9 away from the magnesium reduction chamber 1. The end of the drive plate 38 away from the baffle 9 is rotatably connected to the fourth rotating shaft 39. A connecting rod 40 is fixed on one end of the fourth rotating shaft 39 (the top of the connecting rod 40 is rotatably connected to the turntable 36). An electric push rod 41 is rotatably connected on the side of the magnesium reduction chamber 1 near the turntable 36 (the output end is rotatably connected to the fourth rotating shaft 39). When the reaction is complete and discharge is required, the electric push rod 41 is activated and pushes the fourth rotating shaft 39 to move. The fourth rotating shaft 39 drives the drive plate 38 to rotate around the hinge, causing the baffle 9 to open. At the same time, the drive plate 38 pulls the turntable 36 towards the stirring shaft 2 via the fourth rotating shaft 39 and the connecting rod 40. The turntable 36 pushes the first slider 24 to slide along the stirring shaft 2, thereby driving the irregular rack 23 to drive the first gear 22, the first rotating shaft 17 and the conical wheel assembly to move, ultimately causing the stirring plate 3 to rotate 30° along the first rotating shaft 17. At this time, the stirring shaft 2 rotates under the drive of the drive assembly, and the stirring plate 3 tilted at 30° can more efficiently push the solution and solid (reaction products) at the bottom of the magnesium reduction chamber 1 to be discharged from the opening of the baffle 9, realizing the linkage of "baffle 9 opening - stirring plate 3 angle adjustment - efficient discharge".

[0060] A process for preparing sponge titanium based on the hydrogen-magnesium combined method includes the following steps:

[0061] S1. In the initial state, the baffle 9 is closed to seal the magnesium reduction chamber 1, and the square pipe 5 is closed to isolate the magnesium reduction chamber 1 and the hydrogen pre-reduction chamber 4; the stirring plate 3 is parallel to the axis of the stirring shaft 2.

[0062] S2. Hydrogen gas is introduced into the hydrogen pre-reduction chamber 4 through the hydrogen inlet 42. After other gases in the hydrogen pre-reduction chamber 4 are discharged, titanium tetrachloride vapor is introduced through the first rotating tube 6. The hydrogen gas is used to reduce titanium tetrachloride to titanium dichloride. The solid titanium dichloride will fall to the bottom of the hydrogen pre-reduction chamber 4. During this process, the temperature in the hydrogen pre-reduction chamber 4 is controlled at 650-750℃.

[0063] S3. During the process of introducing titanium tetrachloride vapor, the first rotating tube 6 and the stirring shaft 2 are driven to rotate by the driving component. During the rotation of the first rotating tube 6, the first rotating tube 6 drives the baffle 7 to revolve around the axis of the first rotating tube 6. At the same time, the baffle 7 will contact the reciprocating component during the reciprocating process, and the baffle 7 will reciprocate and rotate under the action of the reciprocating component.

[0064] After the reaction in hydrogen pre-reduction chamber 4 is completed, liquid magnesium is added to magnesium reduction chamber 1 through feed port 44. Square pipe 5 is opened, and solid titanium dichloride enters magnesium reduction chamber 1 through square pipe 5. Solid titanium dichloride reacts with liquid magnesium to generate elemental titanium. The temperature in magnesium reduction chamber 1 is controlled at 800-900℃ during this process.

[0065] S5. After the reaction in magnesium reduction chamber 1 is completed, the baffle 9 is opened by the drive component. During the opening process, the baffle 9, together with the adjustment component, realizes the angle adjustment of the stirring plate 3. Under the action of the stirring shaft 2, the stirring plate 3 pushes the solution and solid at the bottom of magnesium reduction chamber 1 to be discharged from the opening of the baffle 9.

[0066] The working principle of this invention is as follows:

[0067] I. Principle of Hardware Cooperative Operation

[0068] Overall structural foundation support

[0069] The device uses a magnesium reduction chamber 1 and a hydrogen pre-reduction chamber 4 as core reaction units. The two chambers are connected by a square pipe 5 (initially closed to isolate materials / gas) to achieve directional material transport. The bottom of each chamber is fixedly supported by four support legs. The magnesium reduction chamber 1 has a feed inlet 44 at the top (for adding liquid magnesium) and a baffle 9 connected by a hinge on one side of the bottom (initially closing and sealing the chamber). The stirring shaft 2 is rotatably connected inside (multiple sets of staggered stirring plates 3 are equidistantly connected to the outer wall, initially parallel to the axis of the stirring shaft 2, covering the entire area). The hydrogen pre-reduction chamber 4 has a hydrogen inlet 42 at the top (for introducing reaction hydrogen) and an exhaust port 43 on one side (for discharging exhaust gas). The first rotating pipe 6 is rotatably connected inside (four baffles 7 are connected to the top, and nozzles 8 are fixed on the side of the baffles 7). It is also equipped with a reciprocating assembly (driving the rotation of the baffles 7), an adjustment assembly (adjusting the angle of the stirring plates 3), and a drive assembly (providing power), forming a closed reaction system.

[0070] Coordination of airflow disturbance and power transmission

[0071] In the drive assembly, the motor 34 is fixed to the support leg via the fixing plate 35, and the output end drives the third rotating shaft 30 to rotate: on the one hand, the third rotating shaft 30 meshes with the second gear 29 at the bottom of the first rotating tube 6 via the top third gear 31, driving the first rotating tube 6 to revolve; on the other hand, the third rotating shaft 30 meshes with the second conical wheel 33 at the extension end of the stirring shaft 2 via the bottom first conical wheel 32, driving the stirring shaft 2 to rotate synchronously, thus realizing "single motor 34 dual drive". Simultaneously, as the first rotating tube 6 revolves, the baffle 7 revolves around its axis. The friction ring 11 on the baffle 7 alternately contacts the fixed outer friction disk 12 (with the first friction block 15) and inner friction disk 13 (with the second friction block 16, which is intersected with the projection of the first friction block 15) inside the hydrogen pre-reduction chamber 4. Under the reverse friction force, the baffle 7 is forced to reciprocate around the fixed second rotating tube 10 (which is connected to the first rotating tube 6), causing the nozzle 8 to swing. Titanium tetrachloride vapor is ejected from the nozzle 8 through the first rotating tube 6 and the second rotating tube 10, and is fully mixed with the hydrogen disturbed by the swinging nozzle 8 and the baffle 7, ensuring that the pre-reduction reaction is uniform.

[0072] Synergistic Mixing and Discharge

[0073] In the magnesium reduction chamber 1 adjustment assembly, one end of the stirring plate 3 is rotatably connected to the stirring shaft 2 via the first rotating shaft 17. The first rotating shaft 17 is connected to the driving cone wheel 18 and the driven cone wheel 19. The middle cone wheel 21 of the second rotating shaft 20 inside the stirring shaft 2 meshes with the driving cone wheel 18 and the driven cone wheel 19. The first rotating shaft 17 on the side of the driving cone wheel 18 is connected to the first gear 22, which meshes with the irregular rack 23 (including the first rack 26, the second rack 27, and the connecting plate 28) inside the stirring shaft 2. The two ends of the irregular rack 23 are connected to the first slider 24 and the second slider 25 (which slide with the stirring shaft 2). The outer end of the first slider 24 is connected to the turntable 36 (the middle insert rod 37 is slidably connected to the second rotating shaft 20 without affecting the rotation). The turntable 36 is connected to the fourth rotating shaft 39 via the connecting rod 40. The fourth rotating shaft 39 is connected to the drive plate 38 (fixed with the baffle 9) and the electric push rod 41 (rotatably connected to the magnesium reduction chamber 1). During discharge, the electric push rod 41 pushes the fourth rotating shaft 39, which drives the drive plate 38 to open the baffle 9. At the same time, the drive plate 38 pulls the turntable 36 closer to the stirring shaft 2 through the fourth rotating shaft 39 and the connecting rod 40, which pushes the first slider 24 to make the irregular rack 23 slide, driving the first gear 22, the first rotating shaft 17 and the conical wheel assembly to rotate the stirring plate 3 around the first rotating shaft 17 by 30°. At this time, the stirring shaft 2 rotates under the drive of the drive assembly, and the stirring plate 3 tilted at 30° efficiently pushes the bottom reaction product out of the opening of the baffle 9, realizing the linkage of "discharge-stirring adjustment".

[0074] II. Principles of Process Implementation

[0075] Initial preparation: In the initial state of the device, the baffle 9 is closed, the square pipe 5 is sealed, and the stirring plate 3 is parallel to the axis of the stirring shaft 2 to ensure that all components are ready for operation and to avoid mixing of materials / gases.

[0076] Hydrogen pre-reduction: After hydrogen is introduced through hydrogen inlet 42 to expel impurities in the room, titanium tetrachloride vapor (ejected from nozzle 8) is introduced through the first rotating tube 6. The room temperature is controlled at 650-750℃. The hydrogen reduces titanium tetrachloride to solid titanium dichloride (which falls to the bottom of the room). During this stage, motor 34 starts and drives the first rotating tube 6 to revolve through the drive assembly. The baffle 7 reciprocates and rotates to disturb the airflow, ensuring that the hydrogen and titanium tetrachloride vapor are fully mixed and improving the pre-reduction efficiency.

[0077] Final magnesium reduction: After pre-reduction, liquid magnesium is added through inlet 44 of magnesium reduction chamber 1. Square pipe 5 is opened to allow solid titanium dichloride to enter magnesium reduction chamber 1. The chamber temperature is controlled at 800-900℃. The liquid magnesium will reduce the Ti... 2+ Restored to Ti 0 (Elemental titanium), completing the preparation of sponge titanium core.

[0078] Material discharge and finishing: After the reduction reaction is completed, start the electric push rod 41 to open the baffle 9, and synchronously adjust the linkage component to rotate the stirring plate 3 by 30°. The stirring shaft 2 drives the inclined stirring plate 3 to push the reaction product out, thus completing the entire reduction process.

[0079] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural or procedural transformations made based on the content of the present invention specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present invention.

Claims

1. A device for producing titanium sponge based on a combined hydrogen-magnesium process, comprising: The magnesium reduction chamber (1) is internally rotatably connected with a stirring shaft (2) at the bottom end of the magnesium reduction chamber (1); characterized in that a plurality of groups of stirring plates (3) are equidistantly rotatably connected to the outer wall of the stirring shaft (2), and the plurality of groups of stirring plates (3) are staggered; a hydrogen pre-reduction chamber (4) is arranged on one side of the magnesium reduction chamber (1); a square pipeline (5) is arranged between the magnesium reduction chamber (1) and the hydrogen pre-reduction chamber (4), one end of the square pipeline (5) is in communication with the bottom side wall of the hydrogen pre-reduction chamber (4), and the other end is in communication with the top side wall of the magnesium reduction chamber (1); a first rotating pipe (6) is rotatably connected inside the hydrogen pre-reduction chamber (4), four spoilers (7) are equidistantly rotatably connected to the side wall of the top end of the first rotating pipe (6), and the spoilers (7) are used for disturbing the airflow in the hydrogen pre-reduction chamber (4); a plurality of groups of nozzles (8) are equidistantly fixedly connected to one side of the spoilers (7); a reciprocating assembly is installed inside the hydrogen pre-reduction chamber (4), and the reciprocating assembly is used for driving the spoilers (7) to reciprocate and rotate to swing the nozzles (8); a baffle (9) is rotatably connected to the bottom of the side of the magnesium reduction chamber (1) away from the hydrogen pre-reduction chamber (4) through a hinge, and the baffle (9) is used for closing the magnesium reduction chamber (1); an adjusting assembly is installed inside the magnesium reduction chamber (1), and the adjusting assembly is used for adjusting the angle of the stirring plate (3); a driving assembly is installed at the bottom of the hydrogen pre-reduction chamber (4), and the driving assembly is used for driving the first rotating pipe (6) and the stirring shaft (2) to rotate; The reciprocating assembly comprises four friction rings (11), and the four friction rings (11) are fixedly arranged at one end of the corresponding spoiler (7) close to the first rotating pipe (6); the four spoilers (7) are divided into two rows, two in each row; an outer friction disc (12) is arranged above the spoiler (7) in the upper row and below the spoiler (7) in the lower row; an inner friction disc (13) is arranged between the two rows of spoilers (7); the inner friction disc (13) and the outer friction disc (12) are fixedly connected with mounting plates (14), and the two ends of the mounting plates (14) are fixedly connected with the inner wall of the hydrogen pre-reduction chamber (4); two first friction blocks (15) are symmetrically fixedly connected to one side of the outer friction disc (12) facing the friction ring (11), and two second friction blocks (16) are symmetrically fixedly connected to the upper and lower sides of the inner friction disc (13); the projections of the first friction block (15) and the second friction block (16) in the horizontal direction are staggered; The adjusting assembly comprises a first rotating shaft (17), the first rotating shaft (17) is fixedly arranged at one end of the stirring plate (3), one end of the first rotating shaft (17) away from the stirring plate (3) is inserted into the stirring shaft (2) and rotatably connected with the stirring shaft (2); a plurality of groups of driving bevel gears (18) and driven bevel gears (19) are equidistantly arranged inside the stirring shaft (2), the driving bevel gears (18) and the driven bevel gears (19) are respectively fixedly connected with the corresponding first rotating shaft (17), a second rotating shaft (20) is rotatably connected inside the stirring shaft (2), a plurality of groups of intermediate bevel gears (21) are equidistantly fixedly connected to the outer wall of the second rotating shaft (20), and the two sides of the intermediate bevel gears (21) are respectively meshed with the driving bevel gears (18) and the driven bevel gears (19).

2. The apparatus for producing titanium sponge based on a combined method of magnesium hydride according to claim 1, characterized in that, The second rotating pipe (10) is fixedly connected inside the spoiler (7), and is in rotation connection and communication with the first rotating pipe (6), and the nozzle (8) is in communication with the second rotating pipe (10).

3. The apparatus for producing titanium sponge based on a combined method of magnesium hydride according to claim 1, characterized in that, The outer wall of the first rotating shaft (17) fixedly connected with the driving cone wheel (18) is fixedly connected with the first gear (22); the first gear (22) is alternatively arranged in a horizontal axial direction or a vertical axial direction; the stirring shaft (2) is internally provided with a special-shaped rack (23) in mesh with the first gear (22); the two ends of the special-shaped rack (23) are fixedly connected with the first sliding block (24) and the second sliding block (25), respectively; and the first sliding block (24) and the second sliding block (25) are both in sliding connection with the stirring shaft (2).

4. The apparatus for producing titanium sponge based on the combined method of magnesium hydride according to claim 3, characterized in that, The special-shaped rack (23) comprises: a plurality of first racks (26), a plurality of second racks (27) and a plurality of connecting plates (28); the first rack (26) is fixedly arranged at one side of the top end of the connecting plate (28), and the second rack (27) is fixedly arranged at the bottom of the connecting plate (28); each first rack (26), second rack (27) and connecting plate (28) form a rack group, and a plurality of rack groups are fixedly connected in sequence; the first rack (26) is in mesh with the first gear (22) in the horizontal axial direction, and the second rack (27) is in mesh with the first gear (22) in the vertical axial direction; the first sliding block (24) is fixedly connected with the first rack (26), and the second sliding block (25) is fixedly connected with the connecting plate (28) and the second rack (27).

5. The sponge titanium production apparatus based on the combined method of magnesium hydride, characterized in that, The driving assembly comprises: a second gear (29) fixedly arranged at the bottom end of the first rotating pipe (6), a third rotating shaft (30) in rotation connection with the bottom end of the hydrogen pre-reduction chamber (4), a third gear (31) fixedly connected with the top end of the third rotating shaft (30), the second gear (29) in mesh with the third gear (31); a first cone wheel (32) fixedly connected with the side wall of the bottom end of the third rotating shaft (30), a second cone wheel (33) fixedly connected with one end of the stirring shaft (2) extending out of the magnesium reduction chamber (1), the first cone wheel (32) in mesh with the second cone wheel (33); a motor (34) arranged at the bottom of the hydrogen pre-reduction chamber (4), the output end of the motor (34) fixedly connected with the third rotating shaft (30); four supporting legs fixedly connected with the bottom of the hydrogen pre-reduction chamber (4) and the magnesium reduction chamber (1), and the motor (34) fixedly connected with the supporting legs through a fixing plate (35).

6. The apparatus for producing titanium sponge based on the combined method of magnesium hydride according to claim 4, characterized in that, The first slider (24) is fixedly connected with a rotating disc (36) at one end away from the magnesium reduction chamber (1), the middle part of the rotating disc (36) is fixedly connected with a plug rod (37), one end of the plug rod (37) away from the rotating disc (36) is slidably connected with the second rotating shaft (20); the baffle (9) is fixedly connected with a driving plate (38) at one side away from the magnesium reduction chamber (1), one end of the driving plate (38) away from the baffle (9) is rotatably connected with the fourth rotating shaft (39), one end of the fourth rotating shaft (39) is fixedly connected with a connecting rod (40), the top end of the connecting rod (40) is rotatably connected with the rotating disc (36); the magnesium reduction chamber (1) is rotatably connected with an electric push rod (41) at one side close to the rotating disc (36), the output end of the electric push rod (41) is rotatably connected with the fourth rotating shaft (39).

7. The apparatus for producing titanium sponge based on a combined method of magnesium hydride according to claim 1, characterized in that, The hydrogen pre-reduction chamber (4) is fixedly connected with a hydrogen inlet (42) at the top, and is fixedly connected with an exhaust port (43) at one side; the magnesium reduction chamber (1) is fixedly connected with a feed inlet (44) at the top.

8. A process for the production of titanium sponge based on the combined hydrogen-magnesium process, characterized in that, The sponge titanium preparation device based on the hydrogen-magnesium combined method according to any one of claims 1-7 comprises the following steps: S1, in the initial state, the baffle (9) is in a closed state to close the magnesium reduction chamber (1), and the square pipeline (5) is in a closed state to isolate the magnesium reduction chamber (1) and the hydrogen pre-reduction chamber (4); the stirring plate (3) is parallel to the axis of the stirring shaft (2); S2, hydrogen is introduced into the hydrogen pre-reduction chamber (4) through the hydrogen inlet (42), after other gases in the hydrogen pre-reduction chamber (4) are exhausted, titanium tetrachloride vapor is introduced through the first rotating pipe (6), hydrogen is used to reduce titanium tetrachloride to titanium dichloride, and the solid titanium dichloride falls to the bottom of the hydrogen pre-reduction chamber (4); the temperature in the hydrogen pre-reduction chamber (4) is controlled at 650-750℃ during the process; S3, during the process of introducing titanium tetrachloride vapor, the first rotating pipe (6) and the stirring shaft (2) are driven to rotate by the driving assembly, during the rotation of the first rotating pipe (6), the first rotating pipe (6) drives the spoiler (7) to revolve around the axis of the first rotating pipe (6), at the same time, the spoiler (7) contacts the reciprocating assembly during the revolution, and the spoiler (7) reciprocates under the action of the reciprocating assembly; S4, after the reaction in the hydrogen pre-reduction chamber (4) is completed, liquid magnesium is added into the magnesium reduction chamber (1) through the feed inlet (44), the square pipeline (5) is opened, the solid titanium dichloride enters the magnesium reduction chamber (1) through the square pipeline (5), and the solid titanium dichloride reacts with the liquid magnesium to generate elemental titanium; the temperature in the magnesium reduction chamber (1) is controlled at 800-900℃ during the process; S5, after the reaction in the magnesium reduction chamber (1) is completed, the baffle (9) is opened by the driving assembly, during the opening process of the baffle (9), the angle adjustment of the stirring plate (3) is realized by cooperating with the adjusting assembly, under the action of the stirring shaft (2), the stirring plate (3) pushes the solution and the solid at the bottom of the magnesium reduction chamber (1) to be discharged from the opening of the baffle (9).

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