A production method for removing foreign matters from titanium sponge

Abstract

This invention discloses a production method for removing foreign matter from sponge titanium, comprising a dustproof shell, a U-shaped frame fixed near the top of the left side wall of the dustproof shell, and rotating rollers rotatably connected between the left and right ends of the two vertical plates of the U-shaped frame, with the two rollers connected by a conveyor belt. Inside the dustproof shell, from left to right, are a feeding channel, a mounting box, and two feeding cylinders. An inclined groove is formed near the corner of the left top wall of the feeding channel, and a connecting cylinder is fixed to the top surface of the feeding channel. An mounting cylinder is fixed to the inner side wall of the dustproof shell, and a blower is installed inside the mounting cylinder. The top of the connecting cylinder is connected to the mounting cylinder. An air classifier is installed in the middle of the bottom wall of the mounting box. An electromagnet is installed on the right inner wall of the dustproof shell. In this invention, magnetic impurities in the sponge titanium are separated by electromagnet attraction, and lighter impurities are separated by the air classifier. Furthermore, the blower can control the speed at which the sponge titanium flies out from the right end of the feeding channel, ensuring thorough air classification of the sponge titanium.

Description

Technical Field

[0001] This invention belongs to the field of metallurgical technology, specifically a production method for removing foreign matter from sponge titanium. Background Technology

[0002] Titanium sponge is the main raw material for producing industrial titanium alloys. In the preparation of titanium sponge, titanium ore or high titanium slag with a titanium dioxide content of more than 90% is first purified by chlorination to obtain titanium tetrachloride. Titanium tetrachloride then undergoes a reduction reaction with magnesium at high temperature to produce titanium sponge and magnesium chloride. However, iron is also produced in the reduction reaction, and some other impurities are introduced or generated in each step.

[0003] Patent CN212759710U discloses a sponge titanium air classifier purifier, including an air classifier box. An air inlet and an air outlet are fixedly embedded on the front and rear sides of the air classifier box, respectively. A bracket is fixedly embedded inside the air inlet. A No. 1 motor is fixedly screwed on the bracket. The output end of the No. 1 motor passes through the bracket and is fixedly connected to two fan blades. A discharge port is fixedly embedded on the bottom wall of the air classifier box, and a feed cylinder is fixedly embedded on the top wall of the air classifier box. A No. 2 motor is fixedly screwed on the lower part of the air classifier box. A crank is fixedly connected to the output end of the No. 2 motor. The crank is connected to a push-pull rod through a pivot pin. This design can fully vibrate the broken material on the screen and reduce the thickness of the vibrating screen through multiple layers of screen, so that dust and impurities can be completely blown away. Patent CN206701721U discloses a sponge titanium air separation device, including a buffer chamber and a separation chamber connected to each other. The buffer chamber is located at the top of the separation chamber and at one end of the separation chamber. A receiving port is provided at the top of the buffer chamber. A primary deceleration ramp and a secondary deceleration ramp are arranged sequentially along the material falling direction inside the buffer chamber. The primary and secondary deceleration ramps are placed on two opposite inner walls of the buffer chamber. The falling material slides down the primary deceleration ramp onto the secondary deceleration ramp and then falls into the separation chamber along the secondary deceleration ramp. An air inlet is provided at one end of the separation chamber, and an air outlet with a dustproof and breathable screen is provided at the opposite end. A debris outlet and a material outlet are respectively provided at the bottom of the separation chamber, with the material outlet directly below the receiving port. This design can prolong the contact time between the material and the crosswind, thereby improving the air separation effect.

[0004] Iron is generated during the preparation of sponge titanium, and the iron in sponge titanium is difficult to remove by simple air classification. The speed of air classification of sponge titanium is uncontrollable, and the speed may be too fast, resulting in incomplete air classification.

[0005] The information disclosed in this background section is intended only to enhance the understanding of the overall background of the invention and should not be construed as an admission or in any way implying that the information constitutes prior art known to those skilled in the art. Summary of the Invention

[0006] The purpose of this invention is to provide a production method for removing foreign matter from sponge titanium, so as to solve the above-mentioned problems in the prior art.

[0007] To achieve the above objectives, the present invention provides a production method for removing foreign matter from sponge titanium, comprising the following steps:

[0008] S1. The prepared sponge titanium is transported onto a conveyor belt, which then transports the sponge titanium into the dustproof housing.

[0009] S2. When the sponge titanium reaches the right end from the conveyor belt and falls into the feeding channel from above the gap in the top wall of the feeding channel, the sponge titanium slides in the arc-shaped feeding channel. When the sponge titanium reaches the arc corner of the feeding channel, the air blown by the blower blows through the connecting cylinder and the inclined groove to move the sponge titanium. The sponge titanium is blown to the right end of the feeding channel and flies out. The speed at which the sponge titanium flies out can be controlled by the speed of the blower.

[0010] S3. When the sponge titanium flies out of the feeding channel, it moves in a parabolic motion. The wind blown out by the wind classifier causes the sponge titanium to rise a certain distance. The lighter impurities rise a longer distance, which makes the lighter impurities fly out a longer distance.

[0011] S4. During the movement of sponge titanium, the magnetic field strength is changed by controlling the current of the electromagnet. The electromagnet attracts magnetic impurities in the sponge titanium, making the distance that the magnetic impurities in the sponge titanium fly out longer.

[0012] S5. The sponge titanium falls into the left feeding cylinder, while magnetic impurities and lighter impurities are blocked by the baffle and fall into the right feeding cylinder. Open the switch of the feeding cylinder to collect the mixture of sponge titanium and impurities.

[0013] S6. The drive motor is controlled by a timer switch. The output shaft of the drive motor drives the rotating shaft to rotate, and the U-shaped scraper rotates accordingly to scrape off the magnetic impurities attached to the baffle.

[0014] In the technical solution of the present invention, a feed inlet is provided on the left side wall of the dustproof shell near the top. A U-shaped frame is fixed on the dustproof shell at the feed inlet. Rotary rollers are rotatably connected between the left and right ends of the two vertical plates of the U-shaped frame. The two rotary rollers are connected by a conveyor belt. A feeding channel, an installation box and two feeding cylinders are fixed from left to right between the inner walls of the front and rear sides of the dustproof shell. The top left end of the feeding channel is located below the bottom right end of the U-shaped frame. The feeding channel is arc-shaped. A downward-sloping groove is provided on the top left wall of the feeding channel near the corner. A connecting cylinder connected to the groove is fixed on the top surface of the feeding channel. An installation cylinder is fixed on the inner wall of the dustproof shell near the feeding channel. A blower is installed inside the installation cylinder. The top end of the connecting cylinder is connected to the installation cylinder. A wind separator is installed in the middle of the bottom wall of the installation box. An electromagnet is installed on the inner right wall of the dustproof shell.

[0015] In the technical solution of the present invention, the outer side wall of the conveyor belt is fixed with material distribution plates at equal intervals, one vertical plate of the U-shaped frame is fixed with an output shaft and a conveying motor coaxially connected to the left roller, and several support rods are regularly fixed on the left side of the dustproof shell near the feed inlet, with the top of the support rods fixed to the bottom surface of the U-shaped frame.

[0016] In the technical solution of the present invention, a notch for accommodating the entry of sponge titanium is provided at the top left side of the top wall of the feeding channel, the overall length of the feeding channel is 3 to 5 m, and the angle between the left end of the feeding channel and the ground is 60° to 80°.

[0017] In the technical solution of the present invention, air inlets are provided on both the front and rear side walls of the dustproof housing below the mounting box, and air outlets are provided on the top wall of the dustproof housing above the mounting box.

[0018] In the technical solution of the present invention, the outer wall of the dustproof housing is provided with an air inlet hole that corresponds to the position of the mounting cylinder and is adapted in size, and the outer wall of the dustproof housing is provided with four dustproof nets that respectively cover the air inlet hole, the two air inlets and the air outlet.

[0019] In the technical solution of the present invention, the top of the mounting box is open, and a flow equalization plate is fixed on the inner wall of the mounting box near the top.

[0020] In the technical solution of the present invention, the two feeding cylinders are closely fitted together, the top of the feeding cylinder is funnel-shaped, and the bottom of the feeding cylinder is inclined and extends to the outside of the dustproof shell.

[0021] In the technical solution of the present invention, vertical plates are fixed at both ends of the top surface of the feed cylinder, and the height of the two middle vertical plates is half the height of the two side vertical plates.

[0022] In the technical solution of the present invention, a baffle for blocking impurities is fixed on the top surface of the rightmost vertical plate. The top of the baffle is arc-shaped. A rotating shaft is rotatably connected between the front and rear side walls of the dustproof housing near the arc-shaped top of the baffle. A U-shaped scraper with its outer end tightly fitting the inner wall of the arc-shaped top of the baffle is fixed on the outer side wall of the rotating shaft. A drive motor with an output shaft coaxially connected to the rotating shaft is fixed on the outer side wall of the dustproof housing.

[0023] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0024] 1. In this invention, an electromagnet is used to separate magnetic impurities in sponge titanium, while an air classifier is used to separate lighter impurities in sponge titanium. This allows the lighter impurities and magnetic impurities to fly a greater distance and eventually fall into the feed cylinder on the right side, thereby facilitating the separation of impurities from the sponge titanium and improving the purity of the sponge titanium.

[0025] 2. In this invention, the dustproof shell can prevent external debris from mixing into the sponge titanium. At the same time, dustproof nets are hung at the air inlet, the two air inlets and the air outlet to further prevent the introduction of external debris during the impurity removal process and further improve the purity of the sponge titanium.

[0026] 3. In this invention, a blower is used to blow the sponge titanium in the feeding channel, and the speed at which the sponge titanium is thrown out from the right end of the feeding channel is controlled to prevent the sponge titanium from sliding to the corner in the feeding channel and having difficulty rising. This ensures that the sponge titanium moves in a parabolic motion after leaving the feeding channel, and at the same time, it ensures that the air blown out by the air classifier blower can fully blow the sponge titanium. Attached Figure Description

[0027] Figure 1 This is a simplified schematic diagram of the overall structure of the present invention;

[0028] Figure 2 This is a cross-sectional view of the U-shaped frame in this invention;

[0029] Figure 3 This is a cross-sectional view of the dustproof outer casing in this invention. Figure 1 ;

[0030] Figure 4 This is a cross-sectional view of the dustproof outer casing in this invention. Figure 2 ;

[0031] Figure 5 This is a cross-sectional view of the feeding channel in this invention;

[0032] Figure 6 This is a cross-sectional view of the mounting cylinder in this invention;

[0033] Figure 7 This is an exploded view of the mounting box in this invention;

[0034] Figure 8 This is a simplified schematic diagram of the structure of the rotating shaft, drive motor, U-shaped scraper, and baffle in this invention.

[0035] Explanation of reference numerals in the attached figures:

[0036] 1. Dustproof housing; 10. Feed inlet; 11. Air inlet; 12. Air inlet; 13. Air outlet; 14. Dustproof screen; 15. Rotating shaft; 16. Drive motor; 17. U-shaped scraper;

[0037] 2. U-shaped frame; 20. Rotary roller; 21. Conveyor belt; 210. Material distribution plate; 22. Conveyor motor; 23. Support rod;

[0038] 3. Feeding channel; 30. Inclined chute; 31. Connecting cylinder;

[0039] 4. Installation cylinder; 40. Air supply fan;

[0040] 5. Mounting box; 50. Air separator fan; 51. Flow distribution plate;

[0041] 6. Feeding cylinder; 60. Vertical plate; 61. Baffle;

[0042] 7. Electromagnet. Detailed Implementation

[0043] The specific embodiments of the present invention will now be described in detail with reference to the accompanying drawings, but it should be understood that the scope of protection of the present invention is not limited to the specific embodiments.

[0044] Unless otherwise expressly stated, throughout the specification and claims, the term "comprising" or its variations such as "including" or "comprises" shall be understood to include the stated elements or components without excluding other elements or other components.

[0045] Reference Figures 1-8 The production method for removing foreign matter from sponge titanium of the present invention includes the following steps:

[0046] S1. The prepared sponge titanium is transported onto the conveyor belt 21, and the conveyor belt 21 transports the sponge titanium into the dustproof housing 1.

[0047] S2. When the sponge titanium reaches the right end from the conveyor belt 21 and falls into the feeding channel 3 from above the gap in the top wall of the feeding channel 3, the sponge titanium slides in the arc-shaped feeding channel 3. When the sponge titanium reaches the arc corner of the feeding channel 3, the air blown by the blower 40 blows the sponge titanium through the connecting cylinder 31 and the inclined groove 30. The sponge titanium is blown to the right end of the feeding channel 3 and flies out. The speed at which the sponge titanium flies out can be controlled by the rotation speed of the blower 40.

[0048] S3. When the sponge titanium flies out from the feeding channel 3, it moves in a parabolic motion. The wind blown out by the wind classifier 50 causes the sponge titanium to rise a certain distance. The lighter impurities rise a longer distance, which makes the lighter impurities fly out a longer distance.

[0049] S4. During the movement of the sponge titanium, the magnetic field strength is changed by controlling the current of the electromagnet 7. The electromagnet 7 attracts magnetic impurities in the sponge titanium, making the distance that the magnetic impurities in the sponge titanium fly out longer.

[0050] S5. The sponge titanium falls into the left feed cylinder 6. Magnetic impurities and lighter impurities are blocked by the baffle 61 and fall into the right feed cylinder 6. Open the switch of the feed cylinder 6 to collect the mixture of sponge titanium and impurities.

[0051] S6. The drive motor 16 is controlled by a timer switch. The output shaft of the drive motor 16 drives the rotating shaft 15 to rotate, and the U-shaped scraper 17 rotates accordingly to scrape off the magnetic impurities attached to the baffle 61.

[0052] In this invention, a feed inlet 10 is provided on the left side wall near the top of the dustproof shell 1. A U-shaped frame 2 is fixed to the dustproof shell 1 at the feed inlet 10. Rollers 20 are rotatably connected between the left and right ends of the two vertical plates of the U-shaped frame 2. The two rollers 20 are connected by a conveyor belt 21. A feeding channel 3, a mounting box 5, and two feeding cylinders 6 are fixed from left to right between the inner walls of the front and rear sides of the dustproof shell 1. The top left side of the feeding channel 3 is located below the bottom right side of the U-shaped frame 2. The feeding channel 3 is arc-shaped. A downward-sloping groove 30 is provided on the top left side wall of the feeding channel 3 near the corner. A connecting cylinder 31 connected to the inclined chute 30 is fixed on the top surface. An installation cylinder 4 is fixed on the inner wall of the dustproof shell 1 near the material feeding channel 3. A blower 40 is installed inside the installation cylinder 4. The top of the connecting cylinder 31 is connected to the installation cylinder 4. A wind classifier 50 is installed in the middle of the bottom wall of the installation box 5. An electromagnet 7 is installed on the inner wall of the right side of the dustproof shell 1. The blower 40 can make the sponge titanium fly out from the right end of the material feeding channel 3. The wind classifier 50 can make lighter impurities rise a longer distance. At the same time, the electromagnet 7 can attract magnetic impurities, so that lighter impurities and magnetic impurities can move further and fall into the material feeding cylinder 6 on the right side.

[0053] Specifically, the outer wall of the conveyor belt 21 is fixed with equal spacing of material distribution plates 210. The material distribution plates 210 can feed the sponge titanium into the feeding channel 3 in batches to prevent the sponge titanium from being blocked in the feeding channel 3. One of the vertical plates of the U-shaped frame 2 is fixed with a conveyor motor 22 whose output shaft is coaxially connected to the left roller 20. The conveyor motor 22 serves as a power source to drive the conveyor belt 21. Several support rods 23 are regularly fixed on the left side of the dustproof shell 1 near the feed inlet 10. The top of the support rods 23 is fixed to the bottom surface of the U-shaped frame 2 to improve the stability of the U-shaped frame 2.

[0054] In addition, a notch is provided at the top left side of the top wall of the feeding channel 3 to accommodate the sponge titanium. The size of the feeding channel 3 is larger than that of the conveyor belt 21. The overall length of the feeding channel 3 is 3 to 5 m. The angle between the left end of the feeding channel 3 and the ground is 60° to 80°, so that the sponge titanium slides down due to gravity after entering the feeding channel 3.

[0055] In this invention, air inlets 12 are provided on both the front and rear side walls of the dustproof housing 1 below the mounting box 5, and an air outlet 13 is provided on the top wall of the dustproof housing 1 above the mounting box 5, so that the air separator fan 50 can blow air upwards. The size of the air outlet 13 is larger than the size of the mounting box 5.

[0056] Specifically, the outer wall of the dustproof housing 1 is provided with an air inlet 11 that corresponds to the position of the mounting cylinder 4 and is adapted to its size. Four dustproof nets 14 are hung on the outer wall of the dustproof housing 1, which respectively cover the air inlet 11, the two air inlets 12 and the air outlet 13. The dustproof nets 14 can prevent the blower 40 and the air separator 50 from sucking in external impurities when they are working, and can also prevent external impurities from falling into the dustproof housing 1 when it is idle.

[0057] Furthermore, the top of the mounting box 5 is open, and a flow equalization plate 51 is fixed on the inner wall of the mounting box 5 near the top, so that the air blown by the air separator 50 can flow upward evenly.

[0058] It is worth noting that the two feeding cylinders 6 are tightly fitted together, and the top of the feeding cylinder 6 is funnel-shaped to facilitate the collection of sponge titanium and separated impurities. The bottom of the feeding cylinder 6 is inclined and extends to the outside of the dustproof shell 1.

[0059] It is worth noting that vertical plates 60 are fixed at both ends of the top surface of the feeding cylinder 6. The height of the two middle vertical plates 60 is half the height of the two side vertical plates 60, which are used to guide the sponge titanium and mixed impurities to fall into the two feeding cylinders 6 respectively.

[0060] Finally, a baffle 61 for blocking impurities is fixed to the top surface of the rightmost vertical plate 60. The top of the baffle 61 is arc-shaped. A rotating shaft 15 is rotatably connected between the front and rear side walls of the dustproof shell 1 near the arc-shaped top of the baffle 61. A U-shaped scraper 17 with its outer end tightly fitted to the inner wall of the arc-shaped top of the baffle 61 is fixed to the outer wall of the dustproof shell 1. A drive motor 16 with its output shaft coaxially connected to the rotating shaft 15 is fixed to the outer wall of the dustproof shell 1. The baffle 61 can also guide the movement of impurities. The drive motor 16 works intermittently under the control of a timer switch. The U-shaped scraper 17 scrapes off the magnetic impurities attached to the inner wall of the baffle 61 to prevent the magnetic impurities from covering the inner wall of the baffle 61 and affecting the attraction of the magnetic impurities that fly out later.

[0061] The foregoing description of specific exemplary embodiments of the invention is for illustrative and explanatory purposes. These descriptions are not intended to limit the invention to the precise forms disclosed, and it will be apparent that many changes and variations can be made in accordance with the foregoing teachings. The exemplary embodiments were chosen and described in order to explain the specific principles of the invention and its practical application, thereby enabling those skilled in the art to implement and utilize various different exemplary embodiments of the invention, as well as various different choices and variations. The scope of the invention is intended to be defined by the claims and their equivalents.

Claims

1. A production method for removing foreign matter from sponge titanium, characterized in that: Includes the following steps: S1. The prepared sponge titanium is transported onto the conveyor belt (21), and the conveyor belt (21) transports the sponge titanium into the dustproof shell (1); S2. When the sponge titanium reaches the right end from the conveyor belt (21) and falls into the material channel (3) from above the gap in the top wall of the material channel (3), the sponge titanium slides in the arc-shaped material channel (3). When the sponge titanium reaches the arc corner of the material channel (3), the air blown by the blower (40) blows through the connecting cylinder (31) and the inclined groove (30) to move the sponge titanium. The sponge titanium is blown to the right end of the material channel (3) and flies out. The speed at which the sponge titanium flies out can be controlled by the rotation speed of the blower (40). S3. When the sponge titanium flies out from the feeding channel (3), it moves in a parabolic motion. The wind blown out by the wind classifier (50) causes the sponge titanium to rise a certain distance. The lighter impurities rise a longer distance, which makes the lighter impurities fly out a longer distance. S4. During the movement of sponge titanium, the magnetic field strength is changed by controlling the current of electromagnet (7). Electromagnet (7) attracts magnetic impurities in sponge titanium, making the distance that magnetic impurities in sponge titanium fly out longer. S5. The sponge titanium falls into the left feed cylinder (6), and the magnetic impurities and lighter impurities are blocked by the baffle (61) and fall into the right feed cylinder (6). Open the switch of the feed cylinder (6) to collect the mixture of sponge titanium and impurities. S6. The drive motor (16) is controlled by a timer switch. The output shaft of the drive motor (16) drives the rotating shaft (15) to rotate. The U-shaped scraper (17) rotates accordingly and scrapes off the magnetic impurities attached to the baffle (61). The dustproof shell (1) has a feed inlet (10) near the top of its left side wall. A U-shaped frame (2) is fixed to the dustproof shell (1) at the feed inlet (10). A rotating roller (20) is rotatably connected between the left and right ends of the two vertical plates of the U-shaped frame (2). The two rotating rollers (20) are connected by a conveyor belt (21). A feeding channel (3), a mounting box (5), and two feeding cylinders (6) are fixed between the inner walls of the front and rear sides of the dustproof shell (1) from left to right. The top left end of the feeding channel (3) is located below the bottom right end of the U-shaped frame (2). 3) The whole is arc-shaped. The top wall of the left side of the feeding channel (3) is provided with a downward inclined groove (30) near the corner. The top surface of the feeding channel (3) is fixed with a connecting cylinder (31) that communicates with the inclined groove (30). The inner side wall of the dustproof shell (1) is fixed with an installation cylinder (4) near the feeding channel (3). The installation cylinder (4) is equipped with a blower (40). The top of the connecting cylinder (31) is connected with the installation cylinder (4). The bottom wall of the installation box (5) is equipped with a wind separator (50). The inner wall of the right side of the dustproof shell (1) is equipped with an electromagnet (7). The outer wall of the conveyor belt (21) is fixed with material distribution plates (210) at equal intervals. One of the vertical plates of the U-shaped frame (2) is fixed with a conveying motor (22) whose output shaft is coaxially connected to the left roller (20). Several support rods (23) are regularly fixed on the left side of the dustproof shell (1) near the feed inlet (10). The top of the support rods (23) is fixed to the bottom surface of the U-shaped frame (2). The top surface of the feed cylinder (6) is fixed with vertical plates (60) at both ends. The height of the two middle vertical plates (60) is half the height of the two side vertical plates (60). The top surface of the rightmost vertical plate (60) is fixed with a baffle (61) for blocking impurities. The top of the baffle (61) is arc-shaped. A rotating shaft (15) is rotatably connected between the front and rear side walls of the dustproof shell (1) near the arc-shaped top of the baffle (61). A U-shaped scraper (17) with its outer end tightly fitted to the inner wall of the arc-shaped top of the baffle (61) is fixed on the outer side wall of the rotating shaft (15). A drive motor (16) with its output shaft coaxially connected to the rotating shaft (15) is fixed on the outer side wall of the dustproof shell (1).

2. The production method for removing foreign matter from sponge titanium as described in claim 1, characterized in that: The top left side of the top wall of the feeding channel (3) is provided with a notch for accommodating the sponge titanium. The overall length of the feeding channel (3) is 3~5m, and the angle between the left end of the feeding channel (3) and the ground is 60°~80°.

3. The production method for removing foreign matter from sponge titanium as described in claim 1, characterized in that: The dustproof housing (1) has air inlets (12) on both the front and rear side walls below the mounting box (5), and an air outlet (13) on the top wall above the mounting box (5).

4. The production method for removing foreign matter from sponge titanium as described in claim 3, characterized in that: The outer wall of the dustproof housing (1) is provided with an air inlet (11) that corresponds to the position of the mounting cylinder (4) and is adapted to the size. The outer wall of the dustproof housing (1) is provided with four dustproof nets (14) that cover the air inlet (11), the two air inlets (12) and the air outlet (13) respectively.

5. The production method for removing foreign matter from sponge titanium as described in claim 1, characterized in that: The top of the mounting box (5) is open, and a flow equalization plate (51) is fixed on the inner wall of the mounting box (5) near the top.

6. The production method for removing foreign matter from sponge titanium as described in claim 1, characterized in that: The two feeding cylinders (6) are tightly fitted together. The top of the feeding cylinder (6) is funnel-shaped, and the bottom of the feeding cylinder (6) is inclined and extends to the outside of the dustproof shell (1).

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