A method for preparing artificial rutile from titanium slag

Abstract

The present invention relates to the technical field of artificial rutile stone and discloses a method for preparing artificial rutile using titanium slag, comprising the following steps: preparing titanium powder using titanium slag; mixing aluminum powder and titanium powder in a mixer and then adding the mixture to a reactor; adding nitrogen and oxygen to the reactor and applying high temperature and high pressure to form a reaction product; then cooling the reaction product to room temperature and removing it; and finally annealing and cutting the cooled reaction product to obtain artificial rutile. The method is simple and convenient to operate, utilizes titanium slag for production, saves raw materials, and is more economical.

Description

Technical Field

[0001] The invention relates to the technical field of artificial rutile stone, and in particular to a method for preparing artificial rutile by using titanium slag. Background Art

[0002] Artificial rutile is generally made through the following process: First, high-purity aluminum and titanium powders are mixed together and placed in a special reactor. Then, nitrogen and oxygen are added to the reactor, and high temperature and high pressure conditions are applied. This process allows aluminum and titanium to combine with nitrogen and oxygen to form a new crystal structure. Next, the reaction product is cooled to room temperature and taken out. At this point, the product appears red or purple, but does not yet have the clarity and brightness required for rutile. In order to further improve the quality of artificial rutile, subsequent processing steps such as annealing and cutting are required.

[0003] In general, the production of artificial rutile requires a high level of technology and equipment investment, but compared with natural rutile, its cost is lower and resources are easier to obtain, so it has broad commercial application prospects.

[0004] Therefore, the preparation of titanium powder is particularly important in the preparation of artificial rutile. At present, the two preparation methods of titanium powder are mainly as follows:

[0005] The chlorination method is one of the most commonly used methods for producing titanium powder in industry. Its main steps are as follows: natural titanium ore is leached, precipitated, and filtered to produce a titanium chloride solution; reducing agents such as sodium chloride and calcium chloride are added to the titanium chloride solution and reacted at high temperature to produce intermediate products such as titanium dichloride; these products are then reacted with hydrogen to produce titanium powder. This method can produce high-purity titanium powder, but it consumes a large amount of electricity and reducing agents and is complex to operate.

[0006] Iodination method is another traditional method for preparing titanium powder. Its main steps are as follows:

[0007] Titanium blocks or shavings are placed in a mixture of sodium iodide and potassium iodide, where they react at high temperature to produce titanium iodide and other products. These products are then reacted with pure hydrogen to produce titanium powder. While this method consumes less energy and costs than the chlorination method, it also has some drawbacks, such as unstable product quality and complex processes. Therefore, the chlorination method is more commonly used to produce titanium powder in modern industrial production.

[0008] The present application aims to prepare artificial rutile using titanium slag. Therefore, how to prepare titanium powder using titanium slag, and then mix the titanium powder and aluminum powder and prepare rutile through a series of operations is an urgent problem to be solved in the current production stage. Summary of the Invention

[0009] In order to solve the technical problems raised in the background technology, the present invention provides a method for preparing artificial rutile using titanium slag.

[0010] The present invention is implemented by the following technical solution: A method for preparing artificial rutile from titanium slag, comprising the following steps:

[0011] Preparation of titanium powder using titanium slag;

[0012] After aluminum powder and titanium powder are mixed in a mixer, they are put into a reactor;

[0013] Adding nitrogen and oxygen into the reaction furnace and applying high temperature and high pressure conditions to form reaction products;

[0014] Next, the reaction product was cooled to room temperature and taken out;

[0015] The cooled reaction product is annealed and cut to finally obtain artificial rutile.

[0016] To further improve the quality of synthetic rutile, subsequent processing steps such as annealing and cutting are required. Annealing reduces internal stress and defects, improving the material's transparency and optical properties; cutting separates the product into appropriately sized blocks for further fabrication into jewelry and gemstone ornaments.

[0017] As a further improvement of the above solution, in step 1, specifically, the titanium slag is heated and oxidized, and ferric chloride is used as an oxidant to finally obtain a chloride solution containing titanium; and then the titanium chloride is reduced to titanium powder.

[0018] As a further improvement of the above scheme, when reducing titanium chloride to titanium powder, specifically, a mixture of titanium chloride and a reducing agent is first prepared. The reducing agent can be metallic magnesium, and the reduction process is carried out under an inert atmosphere. The mixture is heated to a high temperature to cause a reduction reaction to occur to generate a reaction product. After the reaction is completed, the reaction product needs to be filtered and cleaned to remove impurities and unreacted substances, thereby obtaining titanium powder with higher purity.

[0019] As a further improvement of the above solution, the mixer includes an annular mixing tube, a cover installed outside the mixing tube, and a storage barrel arranged above the mixing tube, wherein a plurality of stirring and mixing mechanisms are installed in the mixing tube, and a plurality of power mechanisms for driving the stirring and mixing mechanisms to work are installed in the cover, and the power source is wind power or other power;

[0020] The bottom of the mixing tube shell is provided with a plurality of discharge holes corresponding to the stirring and mixing mechanism, and a valve mechanism linked to the stirring and mixing mechanism is installed at the discharge holes;

[0021] Aluminum powder and titanium powder are stored in the storage barrel, and a plurality of powder outlets are provided on the shell of the storage barrel. Each powder outlet is connected to a distribution pipe, and the other end of each distribution pipe is communicated with the interior of the mixing pipe.

[0022] As a further improvement of the above solution, the cover body and the mixing tube are detachably connected, and cavity one, cavity two, and cavity three are formed in the cover body, with cavity two located between cavity one and cavity three.

[0023] As a further improvement of the above scheme, the cross-section of the mixing tube is circular, and the stirring and mixing mechanism includes a rotating shaft radially arranged along the vertical direction of the mixing tube, and a plurality of stirring rods installed on the rotating shaft, and one end of the rotating shaft passes through the mixing tube and extends into cavity two. An actuator driven by wind power is provided in cavity one, and the actuator and one end of the rotating shaft are connected by a belt drive mechanism. The input of circulating airflow into cavity one can drive the rotating shaft to rotate.

[0024] The actuator comprises a connecting shaft mounted in Chamber 1, a paddle mounted on the connecting shaft, and a belt drive mechanism comprising a pulley mounted on the connecting shaft or rotating shaft, and a drive belt connecting the two pulleys. Therefore, when inert gas is pumped into Chamber 1 and circulated, it drives the paddle, which in turn rotates the connecting shaft, ultimately driving the rotating shaft to mix and stir the titanium and aluminum powders in the mixing tube.

[0025] As a further improvement of the above scheme, part of cavity one is the installation section, and the longitudinal cross-section of the installation section is rectangular, a reversing tube is longitudinally rotated and installed at the installation section, an air inlet is opened on one side shell of the reversing tube, and the other end of the reversing tube passes through the installation section and is connected to a fan, an air outlet is installed at the air outlet of the fan, and the ends of the air outlet pipe and the reversing tube are connected by rotating sleeves, and the air inlet side of the fan is connected to an external air storage box, inert gas is stored in the air storage box, and the inert gas is nitrogen or argon.

[0026] As a further improvement of the above solution, the cross-section of the storage barrel is circular, and the powder outlets are evenly distributed on the outer wall of the storage barrel, and a partition plate is vertically provided in the middle of the storage barrel, the bottom of the partition plate is connected to a central shaft coaxial with the storage barrel, one end of the central shaft movably passes through the bottom shell of the storage barrel, and a central motor that drives the central shaft to rotate is installed at the bottom of the storage barrel;

[0027] Several unit baffles are distributed in a circumferential array inside the mixing tube. The bottom of each unit baffle is connected to a drive shaft, and the bottom of the drive shaft movably passes through the mixing tube. A drive motor is installed at the bottom of the mixing tube, and the drive motor is used to drive the drive shaft to rotate. When the unit baffle is rotated to a certain position, it can separate the space on both sides.

[0028] As a further improvement to the above solution, the cross section of the discharge hole is rectangular, and slots are provided on both opposite side walls of the discharge hole;

[0029] The valve mechanism includes two baffle plates respectively connected to the slots in a sliding manner, and a control unit for driving the two baffle plates to slide. The top surfaces of the two baffle plates are fixed with convex plates.

[0030] The control unit includes a turntable coaxially mounted at the bottom end of the rotating shaft, the side of the turntable is rotatably connected to a toggle rod, and the turntable is also rotatably connected to a connecting rod, the other end of the connecting rod is slidably connected to the toggle rod, and can slide along the length direction of the toggle rod, wherein, when the turntable rotates forward, the toggle rod can reciprocate to drive the convex plate to drive the material baffle plate to slide, and when the turntable rotates reversely, the toggle rod cannot drive the convex plate to drive the material baffle plate to slide.

[0031] As a further improvement of the above scheme, a feed pipe is installed in cavity three, and the bottom end of the feed pipe is connected with the inside of the mixing tube. An opening is provided on the shell of the cover body corresponding to cavity three, and a feed pipe is installed at the top port of the opening. The feed pipe and the distribution pipe are connected, and a rotating baffle is rotatably installed at the bottom port of the opening. The rotating baffle can open or close the opening when it is rotated to a certain position. A through hole is provided on the shell between cavity three and cavity two, and an intermediate dial plate is movably installed at the through hole. One end of the intermediate dial plate is located in cavity two, and a connecting shaft is coaxially installed on the top of the rotating shaft in cavity two, and a disc is coaxially fixed on the connecting shaft. A toggle column is installed on the side of the disc, and the toggle column can toggle the end of the intermediate dial plate back and forth.

[0032] Compared with the prior art, the present invention has the following beneficial effects:

[0033] The method for preparing artificial rutile proposed in the present invention uses titanium slag to prepare titanium powder; after aluminum powder and titanium powder are mixed in a mixer, they are put into a reactor; nitrogen and oxygen are added to the reactor, and high temperature and high pressure conditions are applied to form a reaction product; then, the reaction product is cooled to room temperature and taken out; the cooled reaction product is annealed and cut to finally obtain artificial rutile.

[0034] The operation is simple and convenient, titanium slag is used for production, raw materials are saved, and the economic efficiency is higher.

[0035] The mixer proposed by the present invention includes an annular mixing tube, a cover installed outside the mixing tube, and a material storage barrel arranged above the mixing tube. A stirring and mixing mechanism is installed in the mixing tube, and a power mechanism for driving the stirring and mixing mechanism is installed in the cover, and the power source is wind power or other power.

[0036] The method can be conveniently applied to the preparation of artificial rutile from titanium slag, is convenient for fully mixing aluminum powder and titanium powder, works automatically, and has a good mixing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 This is a schematic diagram of the overall structure of the mixer proposed in the present invention;

[0038] Figure 2 A top view of the overall structure of the mixer proposed by the present invention;

[0039] Figure 3 A partial structural cross-sectional view of the mixer proposed in the present invention;

[0040] Figure 4 For the present invention Figure 1 Enlarged view of point B in the middle;

[0041] Figure 5 For the present invention Figure 3 Enlarged view of point C in the middle;

[0042] Figure 6 Schematic diagram of a cross section of the mixing tube above the discharge hole of the present invention;

[0043] Figure 7 is a cross-sectional view of the mixing tube of the present invention at the unit baffle;

[0044] Figure 8 Schematic diagram of a partial cross-section structure of a mixing tube in Example 2 of the present invention;

[0045] Figure 9 For the present invention Figure 8 Enlarged view of point D in .

[0046] Description of main symbols:

[0047] In the figure: storage barrel 1, partition plate 101, distribution pipe 2, mixing pipe 3, cover body 4, feed pipe 5, connecting shaft 6, chamber 1 7, chamber 2 8, chamber 3 9, feed pipe 10, stirring rod 11, discharge pipe 12, belt pulley 13, paddle 14, connecting hole 15, unit baffle 16, mounting section 17, fan 18, rotating shaft 19, turntable 20, connecting rod 21, toggle rod 22, convex plate 23, discharge hole 24, baffle plate 25, slot 26, rotating baffle 27, opening 28, middle toggle plate 29, toggle column 30, connecting shaft 31, disc 32, transmission belt 33, drive motor 34, piston plate 35, extrusion chamber 36, air outlet pipe 37, cam 38, working chamber 39, active plate 40, connecting push rod 41, strip hole 42, connecting rod 43, spring 44, extrusion push plate 45. DETAILED DESCRIPTION

[0048] The present invention will be further described below in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0049] Example 1:

[0050] A method for preparing artificial rutile from titanium slag comprises the following steps:

[0051] Preparation of titanium powder using titanium slag;

[0052] After aluminum powder and titanium powder are mixed in a mixer, they are put into a reactor;

[0053] Adding nitrogen and oxygen into the reaction furnace and applying high temperature and high pressure conditions to form reaction products;

[0054] Next, the reaction product was cooled to room temperature and taken out;

[0055] The cooled reaction product is annealed and cut to finally obtain artificial rutile.

[0056] To further improve the quality of synthetic rutile, subsequent processing steps such as annealing and cutting are required. Annealing reduces internal stress and defects, improving the material's transparency and optical properties; cutting separates the product into appropriately sized blocks for further fabrication into jewelry and gemstone ornaments.

[0057] In step 1, specifically, the titanium slag is heated and oxidized, and ferric chloride is used as an oxidant to finally obtain a chloride solution containing titanium; and then the titanium chloride is reduced to titanium powder.

[0058] When reducing titanium chloride to titanium powder, specifically, a mixture of titanium chloride and a reducing agent is first prepared. The reducing agent can be metallic magnesium, and the reduction process is carried out under an inert atmosphere. The mixture is heated to a high temperature to cause a reduction reaction to occur to generate a reaction product. After the reaction is completed, the reaction product needs to be filtered and cleaned to remove impurities and unreacted substances, thereby obtaining titanium powder with higher purity.

[0059] Reference Figure 1-7 The mixer proposed in this scheme includes an annular mixing tube 3, a cover 4 installed on the outside of the mixing tube 3, and a storage barrel 1 arranged above the mixing tube 3. The mixing tube 3 is equipped with a plurality of stirring and mixing mechanisms, and the cover 4 is equipped with a plurality of power mechanisms for driving the stirring and mixing mechanisms to work respectively, and the power source is wind power or other power.

[0060] The bottom of the shell of the mixing tube 3 is provided with a plurality of discharge holes 24 corresponding to the stirring and mixing mechanism, and a valve mechanism linked to the stirring and mixing mechanism is installed at the discharge hole 24;

[0061] Aluminum powder and titanium powder are stored in the storage barrel 1, and a plurality of powder outlets are opened on the shell of the storage barrel 1. Each powder outlet is connected to a distribution pipe 2, and the other end of each distribution pipe 2 is connected to the inside of the mixing pipe 3.

[0062] The cover body 4 and the mixing tube 3 are detachably connected, and a cavity 1 7 , a cavity 2 8 , and a cavity 3 9 are formed in the cover body 4 , and the cavity 2 8 is located between the cavity 1 7 and the cavity 3 9 .

[0063] The cross-section of the mixing tube 3 is circular, and the stirring and mixing mechanism includes a rotating shaft 19 radially arranged along the vertical direction of the mixing tube, and a plurality of stirring rods 11 installed on the rotating shaft 19. One end of the rotating shaft 19 passes through the mixing tube 3 and extends into the cavity 2 8. An actuator that can be driven by wind is provided in the cavity 1 7, and the actuator and one end of the rotating shaft 19 are connected by a belt drive mechanism. The input of circulating airflow into the cavity 1 7 can drive the rotating shaft 19 to rotate.

[0064] The actuator includes a connecting shaft 6 mounted in chamber 1 7, a paddle 14 mounted on the connecting shaft 6, and a belt drive mechanism including a pulley 13 mounted on the connecting shaft 6 or the rotating shaft 19, and a drive belt 33 connecting the two pulleys 13. Therefore, when inert gas is supplied to chamber 1 7 and circulated, it drives the paddle 14 to rotate the connecting shaft 6, ultimately driving the rotating shaft 19 to rotate, mixing and stirring the titanium powder and aluminum powder in the mixing tube 3.

[0065] Reference Figure 2 The portion of cavity 17 is the mounting section 17, and the longitudinal section of the mounting section 17 is rectangular. A reversing tube (not shown) is longitudinally rotated and installed at the mounting section 17. By controlling the rotation of the reversing tube, the purpose of adjusting the wind direction can be achieved. An air inlet is provided on one side of the shell of the reversing tube, and the other end of the reversing tube passes through the mounting section and is connected to a fan 18. An air outlet pipe (not shown) is installed at the air outlet of the fan 18, and the ends of the air outlet pipe and the reversing tube are connected by rotating sleeves, and the air inlet side of the fan is connected to an external air storage tank, which stores inert gas, and the inert gas is nitrogen or argon.

[0066] The cross-section of the storage barrel 1 is circular, and the powder outlets are evenly distributed on the outer wall of the storage barrel 1, and a partition plate 101 is vertically arranged in the middle of the storage barrel 1. The bottom of the partition plate 101 is connected to a central axis coaxial with the storage barrel 1, and one end of the central axis movably passes through the bottom shell of the storage barrel 1, and a central motor that drives the central axis to rotate is installed at the bottom of the storage barrel; the rotation of the partition plate 101 can be controlled by the central motor, which facilitates the powder on both sides of the partition plate 101 to enter each distribution pipe 2 from different powder outlets, which can further improve the mixing effect.

[0067] A plurality of unit baffles 16 are arranged in a circumferential array within the mixing tube 3. Each unit baffle 16 is connected to a drive shaft at its bottom, which flexibly extends through the mixing tube 3. A drive motor 34 is mounted at the bottom of the mixing tube 3 to drive the drive shaft. When the unit baffles 16 are rotated to a certain position, they separate the spaces on either side. The unit baffles 16 divide the mixing tube 3 into several independent spaces, facilitating powder mixing.

[0068] The cross section of the discharge hole 24 is rectangular, and slots 26 are formed on opposite side walls of the discharge hole 24;

[0069] The valve mechanism includes two baffle plates 25 slidably connected to the slots 26 and a control unit for driving the two baffle plates 25 to slide. The top surfaces of the two baffle plates 25 are fixed with convex plates 23.

[0070] The control unit includes a turntable 20 coaxially mounted at the bottom end of the rotating shaft 19, and the side of the turntable 20 is rotatably connected to a toggle rod 22, and the turntable 20 is also rotatably connected to a connecting rod 21, the other end of the connecting rod 21 is slidably connected to the toggle rod 22, and can slide along the length direction of the toggle rod 22, wherein, when the turntable 20 rotates forward, the toggle rod 22 can reciprocate to drive the convex plate 23 to drive the baffle plate 25 to slide, and when the turntable 20 rotates reversely, the toggle rod 22 cannot drive the convex plate 23 to drive the baffle plate 25 to slide.

[0071] A feed pipe 10 is installed in cavity three 9, and the bottom end of the feed pipe 10 is connected to the inside of the mixing tube 3. An opening 28 is provided on the shell of the cover body 4 corresponding to cavity three 9, and a feed pipe 5 is installed at the top port of the opening, and the feed pipe 5 is connected to the distribution pipe 2, and a rotating baffle 27 is rotatably installed at the bottom port of the opening 28. The rotating baffle 27 is rotatably connected to the inner wall of the cover through a pin shaft, and a torsion spring can be installed on the pin shaft to facilitate its automatic reset. The rotating baffle 27 can open or close the opening 28 when it rotates to a certain position. A through hole is provided on the middle shell of cavity three 9 and cavity two 8, and an intermediate dial plate 29 is movably installed at the through hole. One end of the intermediate dial plate 29 is located in cavity two 8, and a connecting shaft 31 is coaxially installed on the top of the rotating shaft 19 in cavity two, and a disc 32 is also coaxially fixed on the connecting shaft 31. A toggle column 30 is installed on the side of the disc, and the toggle column 30 can toggle the end of the intermediate dial plate 29 back and forth. During operation, when the rotating shaft 19 rotates, the shifting column 30 drives the intermediate shifting plate 29 to rotate, thereby rotating the rotating baffle 27 and intermittently opening the opening 28 to facilitate intermittent unloading.

[0072] A connecting hole 15 is provided on the shell of the mixing tube 3, and the connecting hole 15 is used to connect the interior of the mixing tube 3 and the cavity 7. When an inert gas is introduced into the cavity 7, the inert gas can enter the mixing tube 3, and the mixing tube 3 can be filled with inert gas before processing. In this way, the aluminum powder and titanium powder in the mixing tube can always be mixed in the inert gas atmosphere, thereby improving the processing quality.

[0073] Example 2:

[0074] Reference Figure 8-9 In the present embodiment, in order to further improve the powder mixing effect in the mixing tube 3 and improve the mixing efficiency, a plurality of extrusion chambers 36 are provided on opposite sides of the bottom of the mixing tube 3 shell. A piston plate 35 is movably installed in each extrusion chamber 36. One side of the piston plate 35 is an air chamber with variable volume, and a plurality of air outlet pipes 37 connected to the air chamber are installed on the inner wall of the mixing tube 3. The air outlet pipes 37 are tapered pipes, and a plurality of honeycomb-shaped air outlet holes are provided at the end thereof. At the same time, a working chamber 39 is provided on the top of the shell of the mixing tube 3. The working chamber 39 is connected to the extrusion chamber 36, and a strip hole 42 connected to the working chamber 39 is provided on the top of the inner wall of the mixing tube 3. The working chamber and the extrusion chamber 36 are connected through a connecting hole. An active plate 40 is movably provided in the working chamber, and a connecting push rod movably installed at the connecting hole is provided on one side of the active plate 40. The rod 41 is connected to the piston plate 35 at one end of the connecting push rod 41 away from the active plate 40, and one end of the active plate 40 moves through the corresponding strip hole. A cam 38 is installed on the top of the rotating shaft 19. The outer end of the active plate 40 is fixed with a horizontally arranged connecting rod 43. One end of the connecting rod 43 is connected to an extrusion push plate 45. One side of the extrusion push plate 45 is connected to the inner wall of the mixing tube 3 by a spring 44. The other side of the extrusion push plate 45 can contact the annular side surface of the cam 38. In this way, as the cam 38 rotates, it can drive the extrusion push plate 45 to reciprocate horizontally, thereby driving the active plate 40 to slide along the strip hole, so that the connecting push rod 41 drives the piston plate 35 to move in the extrusion chamber 36, thereby squeezing the air cavity, causing the internal gas to be ejected from the outlet pipe 37, and finally more effectively turning the powder raw materials in the mixing tube 3 to improve the mixing effect.

[0075] The above embodiments are only preferred embodiments of the present invention and cannot be used to limit the scope of protection of the present invention. Any non-substantial changes and replacements made by technicians in this field on the basis of the present invention fall within the scope of protection required by the present invention.

Claims

1. A method for preparing artificial rutile from titanium slag, characterized in that: The steps include: Step 1: preparing titanium powder using titanium slag; Step 2: After the aluminum powder and titanium powder are mixed in a mixer, they are put into a reactor; Step 3: Add nitrogen and oxygen into the reactor and apply high temperature and high pressure conditions to form reaction products; Step 4: Cooling the reaction product to room temperature and taking it out; annealing and cutting the cooled reaction product to finally obtain artificial rutile; The mixer includes an annular mixing tube, a cover installed outside the mixing tube, and a material storage barrel arranged above the mixing tube. The mixing tube is equipped with a plurality of stirring and mixing mechanisms. The cover is equipped with a plurality of power mechanisms for driving the stirring and mixing mechanisms respectively, and the power source is wind power or other power. The bottom of the mixing tube shell is provided with a plurality of discharge holes corresponding to the stirring and mixing mechanism, and a valve mechanism linked to the stirring and mixing mechanism is installed at the discharge holes; Aluminum powder and titanium powder are stored in the storage barrel, and a plurality of powder outlets are provided on the shell of the storage barrel. Each powder outlet is connected to a distribution pipe, and the other end of each distribution pipe is connected to the interior of the mixing pipe.

2. The method for preparing artificial rutile from titanium slag according to claim 1, wherein: In the step 1, specifically, the titanium slag is heated and oxidized to obtain a chloride solution containing titanium, wherein the oxidant is ferric chloride; and then the titanium chloride is reduced to titanium powder.

3. The method for preparing artificial rutile from titanium slag according to claim 1, wherein: When reducing titanium chloride to titanium powder, specifically, a mixture of titanium chloride and a reducing agent is first prepared. The reducing agent can be metallic magnesium, and the reduction process is carried out under an inert atmosphere. The mixture is heated to a high temperature to cause a reduction reaction to occur to generate a reaction product. After the reaction is completed, the reaction product needs to be filtered and cleaned to remove impurities and unreacted substances, thereby obtaining titanium powder with higher purity.

4. The method for preparing artificial rutile from titanium slag according to claim 1, wherein: The cover body is detachably connected to the mixing tube, and cavity one, cavity two, and cavity three are formed in the cover body, and cavity two is located between cavity one and cavity three.

5. The method for preparing artificial rutile from titanium slag according to claim 4, characterized in that: The cross-section of the mixing tube is circular, and the stirring and mixing mechanism includes a rotating shaft radially arranged along the vertical direction of the mixing tube, and a plurality of stirring rods installed on the rotating shaft, and one end of the rotating shaft passes through the mixing tube and extends into the second cavity. An actuator that can be driven by wind is provided in the first cavity, and the actuator and one end of the rotating shaft are connected by a belt transmission mechanism. The input of circulating airflow into the first cavity can drive the rotating shaft to rotate.

6. The method for preparing artificial rutile from titanium slag according to claim 5, characterized in that: The first part of the cavity is the installation section, and the longitudinal section of the installation section is rectangular. A reversing tube is longitudinally rotated and installed at the installation section. An air inlet is provided on one side shell of the reversing tube, and the other end of the reversing tube passes through the installation section and is connected to a fan. An air outlet is installed at the air outlet of the fan, and the air outlet pipe and the end of the air outlet pipe are connected by rotating sleeves, and the air inlet side of the fan is connected to an external air storage box, which stores inert gas, and the inert gas is nitrogen or argon.

7. The method for preparing artificial rutile from titanium slag according to claim 1, wherein: The cross section of the material storage barrel is circular, and the powder outlets are evenly distributed on the outer wall of the material storage barrel, and a partition plate is vertically provided in the middle of the material storage barrel, the bottom of the partition plate is connected to a central shaft coaxial with the material storage barrel, one end of the central shaft movably passes through the bottom shell of the material storage barrel, and a central motor for driving the central shaft to rotate is installed at the bottom of the material storage barrel; A number of unit baffles are distributed in a circumferential array in the mixing tube, and the bottom of each unit baffle is connected to a drive shaft, the bottom of the drive shaft movably passes through the mixing tube, and a drive motor is installed at the bottom of the mixing tube, which is used to drive the drive shaft to rotate, and the unit baffle can separate the space on both sides when it rotates to a certain position.

8. The method for preparing artificial rutile from titanium slag according to claim 5, wherein: The cross section of the discharge hole is rectangular, and slots are provided on both opposite side walls of the discharge hole; The valve mechanism includes two baffle plates respectively connected to the slots in a sliding manner, and a control unit for driving the two baffle plates to slide. The top surfaces of the two baffle plates are fixed with convex plates. The control unit includes a turntable coaxially mounted at the bottom end of the rotating shaft, the side of the turntable is rotatably connected to a toggle rod, and the turntable is also rotatably connected to a connecting rod, the other end of the connecting rod is slidably connected to the toggle rod, and can slide along the length direction of the toggle rod, wherein, when the turntable rotates forward, the toggle rod can reciprocate to drive the convex plate to drive the baffle plate to slide, and when the turntable rotates reversely, the toggle rod cannot drive the convex plate to drive the baffle plate to slide.

9. The method for preparing artificial rutile from titanium slag according to claim 8, characterized in that: A feed pipe is installed in the cavity three, and the bottom end of the feed pipe is connected with the inside of the mixing tube. An opening is provided on the shell of the cover body corresponding to the cavity three, and a feed pipe is installed at the top port of the opening. The feed pipe and the distribution pipe are connected, and a rotating baffle is rotatably installed at the bottom port of the opening. The rotating baffle can open or close the opening when it is rotated to a certain position. A through hole is provided on the middle shell of cavity three and cavity two, and an intermediate dial plate is movably installed at the through hole. One end of the intermediate dial plate is located in cavity two, and a connecting shaft is also coaxially installed on the top of the rotating shaft in cavity two, and a disc is also coaxially fixed on the connecting shaft. A toggle column is installed on the side of the disc, and the toggle column can toggle the end of the intermediate dial plate back and forth.

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