Process for grading finished titanium slag
By using a vibrating screen, a pre-screen, and a fine screen for step-by-step screening, along with a material spreading device and an air blowing component in the air classifier, the problem of low titanium slag grading efficiency was solved, achieving uniform dispersion and efficient grading of materials and extending the screen life.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- WUDINGGUO TITANIUM METAL CO LTD
- Filing Date
- 2025-01-17
- Publication Date
- 2026-05-19
AI Technical Summary
The existing titanium slag grading process lacks pretreatment, resulting in low grading efficiency. Furthermore, the feed plate inside the classifier does not disperse the falling titanium slag, making efficient grading impossible.
The material is screened in stages using a vibrating screen, a pre-screen, and a fine screen. Combined with the material spreading device and air blowing component in the classifier, the material is dispersed by a right-angle rod driven by a motor, and the airflow is used to form a spiral airflow for grading.
It improves the efficiency of titanium slag classification, extends the service life of the screen, and achieves uniform dispersion and efficient classification of materials.
Smart Images

Figure CN119793890B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of finished titanium slag grading equipment technology, specifically a process method for grading finished titanium slag. Background Technology
[0002] Titanium slag is a titanium dioxide-rich slag produced by electric furnace smelting. In recent years, due to the development of titanium dioxide and sponge titanium production processes, the demand for high-titanium slag as a raw material has increased, and its cost is relatively low compared to rutile. However, high-titanium slag has higher requirements for calcium and magnesium content and particle size, and unqualified particle size may affect the production process and product quality of titanium dioxide or sponge titanium.
[0003] Authorization announcement number CN112354703B discloses an adjustable three-stage separation air classifier. The device includes: a three-stage separation air classifier chamber; a first motor, which is fixedly connected to the center of the top of the three-stage separation air classifier chamber; a second motor, which is fixedly connected to the top of the three-stage separation air classifier chamber and arranged close to the first motor; cyclones, a plurality of cyclones are evenly connected to the side of the three-stage separation air classifier chamber and communicate with the three-stage separation air classifier chamber; and a blower, the outlet of which is connected to the three-stage separation air classifier chamber, and the inlet of which is connected to the cyclones through a pipeline. This invention adopts a dual-shaft dual-rotor air classifier structure to disperse and classify materials. The particle size and quantity of the air classifier can be adjusted by regulating the air volume, rotation speed, and differential speed. There is no external discharge, realizing internal circulation of the air classifier, reducing operating noise, with a compact structure, reducing energy consumption and civil engineering costs, and effectively improving the efficiency and accuracy of material sorting.
[0004] It is evident that the lack of pretreatment during titanium slag classification reduced classification efficiency. Furthermore, the material spreading disc inside the classifier failed to disperse the falling titanium slag, and the absence of an air blowing device to generate a rotating airflow prevented efficient classification of the titanium slag.
[0005] In view of this, we propose a process method for classifying finished titanium slag. Summary of the Invention
[0006] In order to overcome the defects in the prior art, the purpose of this invention is to provide a process method for classifying finished titanium slag, so as to solve the problems mentioned in the background art.
[0007] To achieve the above objectives, the present invention provides a process for classifying finished titanium slag, comprising the following steps:
[0008] S1. The dried titanium slag is sequentially screened by a vibrating screen and a pre-screen. Materials larger than 3mm are ground in a grinding mill, and materials smaller than 3mm are further screened by a fine screen.
[0009] S2. The ground material is then sent to a pre-screen for repeated screening, and then sent to a fine screen for further screening.
[0010] S3. After passing through a fine sieve, the -20 mesh material enters the classifier via a weighing belt, while the +20 mesh material is fed into a grinding mill for repeated grinding.
[0011] S4. Inside the classifier, -20 mesh material enters the discharge cone through the feed inlet and then falls onto the spreading device from the discharge outlet. The first motor is started, which drives one of the rotating right-angle rods to rotate via the first belt, causing the other two rotating right-angle rods to rotate together, causing the shaking disc to shake and the material to fall onto the spreading disc. The output shaft of the first motor drives the first gear to rotate, which in turn drives the spreading disc to rotate through the meshing second gear, throwing out the material. Then the blower is started, which allows gas to enter the main air pipe inside the air blowing block and blow out from the first and second auxiliary air pipes. At the same time, the spreading disc rotates, which drives the air blowing block to rotate, forming an upward spiral airflow. +20 mesh material falls to the bottom of the machine body, and -20 mesh material enters the rectifier rotor from the guide plate under the action of the airflow. The second motor is started, which drives the rectifier rotor to rotate and disperse the material. 20-160 mesh material falls into the inner cone, and -160 mesh material enters the cyclone from the guide port.
[0012] S5. Finally, the +20 mesh material is taken out from the coarse powder discharge pipe and carried into the grinding mill by the return conveyor belt for grinding. The 20-160 mesh material is taken out from the medium powder discharge pipe and sent to the finished product silo by the steep angle conveyor belt. The -160 mesh material is taken out from the fine powder discharge pipe and a small amount of 20-160 mesh material is separated by the disc screen and enters the finished product silo. The -160 mesh fine powder is packaged.
[0013] As a further improvement to this technical solution, an air classifier is used for this process. The air classifier has a feeding cone, a rectifier rotor, an inner cone, and a spreading device arranged from top to bottom inside the machine body. The side of the machine body is also provided with several cyclone tubes that communicate with the inside of the machine body. The spreading device includes a shaking component fixed inside the machine body, a centrifugal component placed below the shaking component and rotatably connected to it, and an air blowing component coaxially connected to the centrifugal component by fastening bolts.
[0014] The shaking assembly includes a base fixed inside the body, three rotating right-angle rods rotatably connected to the top of the base and arranged in a triangular pattern, and a shaking disk rotatably connected to the top of the three rotating right-angle rods. A first motor is installed inside the base. The output shaft of the first motor is connected to one of the rotating right-angle rods via a first belt drive. A first gear is also coaxially connected to the output shaft of the first motor.
[0015] The centrifugal assembly includes a spreading disc rotatably connected to the base, a column welded and fixed to the center of the top surface of the spreading disc, a second gear welded and fixed to the outer wall of the column, and a connecting disc welded and fixed to the center of the bottom surface of the spreading disc. The column extends into the base, and the second gear meshes with the first gear.
[0016] The air blowing assembly includes an air blowing block coaxially connected to the spreading disc, a main air pipe disposed inside the air blowing block, and a first auxiliary air pipe and a second auxiliary air pipe that are radially distributed inside the air blowing block and connected to the main air pipe.
[0017] As a further improvement to this technical solution, the top surface of the base is provided with a limiting block containing an internal annular groove at the position corresponding to the rotating right-angle rod, and the outer side wall of the base is provided with a number of fixing rods for fixing to the machine body.
[0018] As a further improvement to this technical solution, a rotating block is provided at the horizontal end of the rotating right-angle rod, a limiting ring adapted to the limiting block is provided on the outer wall of the rotating right-angle rod, and a belt groove is provided on the vertical section of the rotating right-angle rod connected to the first belt drive.
[0019] As a further improvement to this technical solution, the top of the swaying disk has several triangular blocks distributed radially, and the bottom surface of the swaying disk is provided with a positioning block that matches the rotating block.
[0020] As a further improvement to this technical solution, the top surface of the spreading disc is provided with several radially distributed fan plates, the center of the top surface of the spreading disc is provided with a groove that matches the size of the base, and the bottom surface of the spreading disc is provided with several radially distributed air grooves.
[0021] As a further improvement to this technical solution, a slot adapted to the size of the connecting plate is provided at the center of the top surface of the air-blowing block, and a plurality of threaded holes adapted to the fastening bolts are provided in the slot.
[0022] As a further improvement to this technical solution, the air outlet of the first auxiliary air pipe faces the bottom surface of the spreading disc, and the air outlet of the second auxiliary air pipe faces the gap between the spreading disc and the machine body.
[0023] As a further improvement to this technical solution, the radius of the swaying disc is greater than the sum of the length of the horizontal section of the rotating right-angle rod and the radius of the top surface of the base.
[0024] As a further improvement to this technical solution, the aperture of the upper screen in the primary vibrating screen is 8*20mm and the aperture of the lower screen is 5*5mm; the aperture of the upper screen in the pre-screen is 8*25mm and the aperture of the lower screen is 3*3mm; and the aperture of the upper screen in the fine screen is 2*2mm and the aperture of the lower screen is 20 mesh.
[0025] Compared with the prior art, the beneficial effects of the present invention are as follows:
[0026] 1. The process for grading the finished titanium slag involves pre-screening the titanium slag using a primary vibrating screen, a pre-screen, and a fine screen. This step-by-step screening avoids excessive pressure on the screens and increases their service life.
[0027] 2. The process for classifying the finished titanium slag involves starting the first motor during the feeding process of the classifier. The first motor drives the rotating right-angle rod to rotate via a belt, causing the shaking disc to shake and disperse the falling titanium slag, ensuring that it falls evenly onto the feeding disc and is thrown out. Through the rotating air blowing block, gas is blown out from the first and second auxiliary branches to form a spiral airflow, thereby improving the classifier efficiency. Attached Figure Description
[0028] The accompanying drawings described herein are for illustrative purposes only and are not intended to limit the scope of the invention in any way. Furthermore, the shapes and proportions of the components in the drawings are merely illustrative to aid in understanding the invention and do not specifically limit the shapes and proportions of the components. Those skilled in the art, guided by the teachings of this invention, can select various possible shapes and proportions to implement the invention according to specific circumstances.
[0029] Figure 1 This is a schematic diagram of the overall structure and flow of the present invention;
[0030] Figure 2 This is a schematic diagram of the internal structure of the air classifier of the present invention;
[0031] Figure 3 This is a schematic diagram of the material spreading device of the present invention;
[0032] Figure 4 This is a cross-sectional view of the material spreading device of the present invention;
[0033] Figure 5 This is an exploded view of the material spreading device of the present invention;
[0034] Figure 6 This is an exploded view of the swaying component structure of the present invention;
[0035] Figure 7 This is one of the schematic diagrams of the centrifuge assembly structure of the present invention;
[0036] Figure 8This is a second schematic diagram of the centrifuge assembly structure of the present invention;
[0037] Figure 9 This is a cross-sectional view of the air blowing assembly structure of the present invention;
[0038] The meanings of the labels in the diagram are as follows:
[0039] 1. Single-stage vibrating screen;
[0040] 2. Pre-screening;
[0041] 3. Fine sieve;
[0042] 4. Weighing belt;
[0043] 5. High-angle belt;
[0044] 6. Grinding mill;
[0045] 7. Disc sieve;
[0046] 8. Return conveyor belt;
[0047] 9. Air classifier; 91. Machine body; 911. Coarse powder discharge pipe; 92. Feed cone; 921. Feed inlet; 922. Discharge outlet; 93. Spreading device; 931. Shaking assembly; 9311. Base; 93111. Limiting block; 93112. Fixing rod; 9312. Rotating right-angle rod; 93121. Rotating block; 93122. Limiting ring; 93123. Belt groove; 9313. Shaking disc; 93131. Triangular block; 9314. First belt; 9315. First motor; 9316. First gear; 932. Centrifugal assembly; 9321. Spreading device Disc; 93211, Fan plate; 93212, Groove; 93213, Air slot; 9322, Column; 9323, Second gear; 9324, Connecting disc; 933, Air blowing assembly; 9331, Air blowing block; 93311, Slot; 93312, Threaded hole; 9332, Main air pipe; 9333, First auxiliary air pipe; 9334, Second auxiliary air pipe; 934, Fastening bolt; 94, Guide plate; 95, Inner cone; 951, Medium powder discharge pipe; 96, Rectifier rotor; 97, Cyclone; 971, Fine powder discharge pipe; 972, Guide port; 98, Second motor. Detailed Implementation
[0048] The details of the present invention can be more clearly understood by referring to the accompanying drawings and the description of specific embodiments. However, the specific embodiments of the present invention described herein are for illustrative purposes only and should not be construed as limiting the invention in any way. Under the teachings of this invention, those skilled in the art can conceive of any possible modifications based on the invention, and these should all be considered to fall within the scope of the invention. The terms "installation" and "connection" should be interpreted broadly, referring to direct connection or indirect connection through an intermediate medium.
[0049] The terms "central axis," "vertical," "horizontal," "front," "rear," "upper," "lower," "left," "right," "top," "bottom," "inner," and "outer" used herein to indicate orientation or positional relationships are based on the orientation or positional relationships shown in the accompanying drawings and are used only for the convenience of describing the invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. Furthermore, in the description of the invention, "a number" means two or more, unless otherwise explicitly specified.
[0050] Please see Figures 1-9 As shown, the present invention provides a process for classifying finished titanium slag, comprising the following steps:
[0051] S1. The dried titanium slag is sequentially screened through a primary vibrating screen 1 and a pre-screen 2. Materials larger than 3mm are ground in a grinding mill 6, while materials smaller than 3mm are further screened in a fine screen 3. This step-by-step screening reduces damage to the screens.
[0052] S2. The ground material is then fed into the pre-screen 2 for repeated screening, and then into the fine screen 3 for further screening.
[0053] S3. After passing through the fine sieve 3, the -20 mesh material that is sieved out contains a small amount of +20 mesh material. The -20 mesh material enters the classifier 9 through the weighing belt 4, and the +20 mesh material is sent to the grinder 6 for repeated grinding.
[0054] S4. Inside the classifier 9, -20 mesh material enters the discharge cone 92 through the inlet 921 and then falls onto the spreading device 93 from the outlet 922. The first motor 9315 is started, driving one of the rotating right-angle rods 9312 to rotate via the first belt 9314. This causes the other two rotating right-angle rods 9312 to rotate together, causing the shaking disc 9313 to shake. The material is dispersed by the shaking disc 9313 and falls from the edge, thus landing on the spreading disc 9321. The output shaft of the first motor 9315 drives the first gear 9316 to rotate, which in turn drives the spreading device 9321 via the meshing second gear 9323. The disc 9321 rotates, throwing out the material. Then the blower is started, allowing gas to enter the main air pipe 9332 inside the air blowing block 9331 and blow out from the first auxiliary air pipe 9333 and the second auxiliary air pipe 9334. At the same time, the disc 9321 rotates, driving the air blowing block 9331 to rotate, forming an upward spiral airflow. The +20 mesh material falls to the bottom of the machine body 91, and the -20 mesh material enters the rectifier rotor 96 from the guide plate 94 under the action of the airflow. The second motor 98 is started, driving the rectifier rotor 96 to rotate and disperse the material. The 20-160 mesh material falls into the inner cone 95, and the -160 mesh material enters the cyclone 97 from the guide port 972.
[0055] S5. Finally, the +20 mesh material is taken out from the coarse powder discharge pipe 911 and carried into the grinding mill 6 through the return conveyor belt 8 for grinding. The 20-160 mesh material is taken out from the medium powder discharge pipe 951 and sent to the finished product silo through the steep angle conveyor belt 5. The -160 mesh material is taken out from the fine powder discharge pipe 971 and then passed through the disc screen 7 to separate a small amount of 20-160 mesh material into the finished product silo. The -160 mesh fine powder is packaged.
[0056] Among them, such as Figures 2-5 As shown, the body 91 of the air classifier 9 is provided with a feeding cone 92, a rectifier rotor 96, an inner cone 95 and a spreading device 93 from top to bottom. The side of the body 91 is also provided with a number of cyclone tubes 97 that are connected to the inside of the body 91. The spreading device 93 includes a shaking component 931 fixed inside the body 91, a centrifugal component 932 placed below the shaking component 931 and rotatably connected to it, and an air blowing component 933 coaxially connected to the centrifugal component 932 by fastening bolts 934.
[0057] The shaking assembly 931 includes a base 9311 fixed inside the body 91, three rotating right-angle rods 9312 rotatably connected to the top of the base 9311 and arranged in a triangular pattern, and a shaking disk 9313 rotatably connected to the top of the three rotating right-angle rods 9312. A first motor 9315 is installed inside the base 9311. The output shaft of the first motor 9315 is connected to one of the rotating right-angle rods 9312 via a first belt 9314. The first motor 9315 drives the rotating right-angle rod 9312 to rotate via the first belt 9314. A first gear 9316 is also coaxially connected to the output shaft of the first motor 9315.
[0058] The centrifugal assembly 932 includes a spreading disc 9321 rotatably connected to a base 9311, a column 9322 welded and fixed to the center of the top surface of the spreading disc 9321, a second gear 9323 welded and fixed to the outer wall of the column 9322, and a connecting disc 9324 welded and fixed to the center of the bottom surface of the spreading disc 9321. The column 9322 extends into the base 9311, and the second gear 9323 meshes with the first gear 9316. The first motor 9315 drives the first gear 9316 to rotate, thereby causing the second gear 9323 to rotate, which in turn drives the spreading disc 9321 to rotate and throw the material outward.
[0059] The air blowing assembly 933 includes an air blowing block 9331 coaxially connected to the spreading disc 9321, a main air pipe 9332 disposed inside the air blowing block 9331, and a first auxiliary air pipe 9333 and a second auxiliary air pipe 9334 radially distributed inside the air blowing block 9331 and connected to the main air pipe 9332. After the gas enters the main air pipe 9332, it is blown out from the first auxiliary air pipe 9333 and the second auxiliary air pipe 9334, forming a spiral upward airflow.
[0060] Specifically, the top surface of the base 9311 is provided with a limiting block 93111 with an internal annular groove at the corresponding position of the rotating right angle rod 9312. The outer wall of the base 9311 is provided with a number of fixing rods 93112 for fixing to the body 91. One end of the fixing rod 93112 is welded to the outer wall of the base 9311 and the other end is welded to the inner wall of the body 91.
[0061] Furthermore, a rotating block 93121 is provided at the horizontal end of the rotating right-angle rod 9312, and a limiting ring 93122 adapted to the limiting block 93111 is provided on the outer side wall of the rotating right-angle rod 9312. The matching limiting ring 93122 and the limiting block 93111 enable the rotating right-angle rod 9312 to be rotatably connected to the base 9311. A belt groove 93123 is provided on the vertical section of the rotating right-angle rod 9312 that is connected to the first belt 9314 for transmission. The belt groove 93123 prevents the first belt 9314 from deviating when it rotates.
[0062] Specifically, the top of the swaying disk 9313 has several triangular blocks 93131 distributed radially, and the bottom surface of the swaying disk 9313 is provided with a positioning block that matches the rotating block 93121. The triangular blocks 93131 disperse the material scattered on the swaying disk 9313 when it slides down.
[0063] In addition, the top surface of the spreading disc 9321 is provided with several radially distributed fan plates 93211, which facilitate the spreading disc 9321 to throw out materials; a groove 93212 that matches the size of the base 9311 is provided at the center of the top surface of the spreading disc 9321; and several radially distributed air grooves 93213 are provided on the bottom surface of the spreading disc 9321, which guide the airflow.
[0064] Furthermore, a slot 93311 adapted to the size of the connecting plate 9324 is provided at the center of the top surface of the air blowing block 9331. Several threaded holes 93312 adapted to the fastening bolts 934 are provided in the slot 93311. The connecting plate 9324 is snapped into the slot 93311 and fixed to the air blowing block 9331 by the fastening bolts 934.
[0065] Specifically, the air outlet of the first auxiliary air pipe 9333 faces the bottom surface of the spreading plate 9321, and the air outlet of the second auxiliary air pipe 9334 faces the gap between the spreading plate 9321 and the machine body 91. The first auxiliary air pipe 9333 drives the airflow to blow towards the bottom surface of the spreading plate 9321 and blows it upward from the air groove 93213. The second auxiliary air pipe 9334 forms a spiral airflow to blow the material.
[0066] It is worth noting that the radius of the swaying disc 9313 is greater than the sum of the length of the horizontal section of the rotating right-angle rod 9312 and the radius of the top surface of the base 9311, so that the material falling from the swaying disc 9313 lands on the spreading disc 9321.
[0067] Furthermore, the upper screen of the primary vibrating screen 1 has an aperture of 8*20mm, and the lower screen has an aperture of 5*5mm. The upper screen of the pre-screen 2 has an aperture of 8*25mm, and the lower screen has an aperture of 3*3mm. The upper screen of the fine screen 3 has an aperture of 2*2mm, and the lower screen has a mesh size of 20. The primary vibrating screen 1, the pre-screen 2, and the fine screen 3 use screens with different aperture sizes to screen the material step by step.
[0068] It should be noted that the above embodiments are only for illustrating the technical concept and features of the present invention, and are intended to enable those skilled in the art to understand the content of the present invention and implement it accordingly. They should not be used to limit the scope of protection of the present invention. All equivalent changes or modifications made in accordance with the spirit and essence of the present invention should be covered within the scope of protection of the present invention.
Claims
1. A process for classifying finished titanium slag, using a classifier (9) for the process, wherein the body (91) of the classifier (9) is provided with a feeding cone (92), a rectifier rotor (96), an inner cone (95) and a spreading device (93) from top to bottom, and the rectifier rotor (96) is provided with a guide plate (94) in the circumferential direction; the side of the body (91) is provided with a plurality of guide ports (972), and a plurality of cyclones (97) are connected to the inside of the body (91) through the guide ports (972); the rectifier rotor (96) is connected to the output end of a second motor (98); the spreading device (93) includes a shaking component (931) fixed in the body (91), a centrifugal component (932) placed below the shaking component (931) and rotatably connected thereto, and an air blowing component (933) coaxially connected to the centrifugal component (932) by fastening bolts (934); The shaking assembly (931) includes a base (9311) fixed inside the body (91), three rotating right-angle rods (9312) rotatably connected to the top of the base (9311) and arranged in a triangular pattern, and a shaking disk (9313) rotatably connected to the top of the three rotating right-angle rods (9312). A first motor (9315) is installed inside the base (9311). The output shaft of the first motor (9315) is connected to one of the rotating right-angle rods (9312) via a first belt (9314). A first gear (9316) is also coaxially connected to the output shaft of the first motor (9315). The centrifugal assembly (932) includes a spreading disc (9321) rotatably connected to a base (9311), a column (9322) welded and fixed to the center of the top surface of the spreading disc (9321), and a second gear (9323) welded and fixed to the outer wall of the column (9322). The column (9322) extends into the base (9311), and the second gear (9323) meshes with the first gear (9316). The air blowing assembly (933) includes an air blowing block (9331) coaxially connected to the spreading disc (9321), a main air pipe (9332) disposed inside the air blowing block (9331), and a first auxiliary air pipe (9333) and a second auxiliary air pipe (9334) that are radially distributed inside the air blowing block (9331) and connected to the main air pipe (9332) and are distributed vertically. Its features are, Includes the following steps: S1. The dried titanium slag is screened sequentially through a vibrating screen (1) and a pre-screen (2). Materials larger than 3mm are ground in a grinder (6), and materials smaller than 3mm are further screened in a fine screen (3). S2. The ground material is then fed into the pre-screen (2) for repeated screening, and then fed into the fine screen (3) for screening. S3. After passing through the fine sieve (3), the material under the sieve is mainly -20 mesh material and contains a small amount of +20 mesh material. The -20 mesh mixture enters the classifier (9) through the weighing belt (4), and the material on the +20 mesh sieve is sent to the grinder (6) for repeated grinding. S4. Inside the classifier (9), the -20 mesh mixture enters the discharge cone (92) through the feed inlet (921) and then falls onto the spreading device (93) from the discharge outlet (922). The first motor (9315) is started, and the first belt (9314) drives one of the rotating right-angle rods (9312) to rotate, which in turn causes the other two rotating right-angle rods (9312) to rotate together, causing the shaking disc (9313) to shake, thus causing the material to fall onto the spreading disc (9321). The output shaft of the first motor (9315) drives the first gear (9316) to rotate, which in turn drives the spreading disc (9321) to rotate through the meshing second gear (9323), throwing out the material. The material is then fed into the main air pipe (9332) inside the air blowing block (9331), and blown out from the first auxiliary air pipe (9333) and the second auxiliary air pipe (9334). At the same time, the material spreading disc (9321) rotates, driving the air blowing block (9331) to rotate, forming an upward spiral airflow. The +20 mesh material falls at the bottom of the machine body (91), and the -20 mesh material enters the rectifier rotor (96) from the guide plate (94) under the action of the airflow. The second motor (98) is started, driving the rectifier rotor (96) to rotate and disperse the material. The 20-160 mesh material falls into the inner cone (95), and the -160 mesh material enters the cyclone (97) from the guide port (972). S5. Finally, the +20 mesh material is taken out from the coarse powder discharge pipe (911) and carried into the grinding mill (6) by the return belt (8) for grinding. The 20-160 mesh material is taken out from the medium powder discharge pipe (951) and sent to the finished product silo by the large angle belt (5). The -160 mesh material is taken out from the fine powder discharge pipe (971) and then passed through the disc screen (7) to separate a small amount of 20-160 mesh material into the finished product silo. The -160 mesh material fine powder is packaged.
2. The process method for classifying finished titanium slag according to claim 1, characterized in that: The top surface of the base (9311) is provided with a limiting block (93111) with an internal annular groove at the corresponding position of the rotating right angle rod (9312). The outer side wall of the base (9311) is provided with a plurality of fixing rods (93112) for fixing to the body (91).
3. The process method for classifying finished titanium slag according to claim 2, characterized in that: The horizontal section of the rotating right-angle rod (9312) is provided with a rotating block (93121), and the outer side wall of the rotating right-angle rod (9312) is provided with a limiting ring (93122) that is adapted to the limiting block (93111). The vertical section of the rotating right-angle rod (9312) that is connected to the first belt (9314) is provided with a belt groove (93123).
4. The process method for classifying finished titanium slag according to claim 3, characterized in that: The top of the swaying disk (9313) has several triangular blocks (93131) arranged radially, and the bottom surface of the swaying disk (9313) is provided with a positioning block that matches the rotating block (93121).
5. The process method for classifying finished titanium slag according to claim 4, characterized in that: The top surface of the spreading disc (9321) is provided with a plurality of radially distributed fan plates (93211), the center of the top surface of the spreading disc (9321) is provided with a groove (93212) that matches the size of the base (9311), and the bottom surface of the spreading disc (9321) is provided with a plurality of radially distributed air grooves (93213).
6. The process method for classifying finished titanium slag according to claim 5, characterized in that: A connecting plate (9324) is welded and fixed at the center of the bottom surface of the spreading plate (9321). A slot (93311) adapted to the size of the connecting plate (9324) is opened at the center of the top surface of the air blowing block (9331). A plurality of threaded holes (93312) adapted to the fastening bolts (934) are opened in the slot (93311).
7. The process method for classifying finished titanium slag according to claim 6, characterized in that: The air outlet of the first auxiliary air pipe (9333) faces the bottom surface of the spreading disc (9321), and the air outlet of the second auxiliary air pipe (9334) faces the gap between the spreading disc (9321) and the machine body (91).
8. The process method for classifying finished titanium slag according to claim 7, characterized in that: The radius of the swaying disc (9313) is greater than the sum of the length of the horizontal section of the rotating right-angle rod (9312) and the radius of the top surface of the base (9311).
9. The process method for classifying finished titanium slag according to claim 8, characterized in that: The upper screen of the primary vibrating screen (1) has an aperture of 8*20mm and the lower screen has an aperture of 5*5mm. The upper screen of the pre-screen (2) has an aperture of 8*25mm and the lower screen has an aperture of 3*3mm. The upper screen of the fine screen (3) has an aperture of 2*2mm and the lower screen has a mesh size of 20.