Process method for grading finished titanium slag

Abstract

The invention relates to the technical field of finished titanium slag grading equipment, in particular to a finished titanium slag grading process method which comprises the following steps: titanium slag passes through a primary vibrating screen and a pre-screen in sequence; feeding into a fine screen for screening; after the materials pass through the fine screen, the-20-mesh materials enter a powder concentrator; in the powder concentrator, the-20-mesh material falls on the material scattering device; and finally, the + 20-mesh material enters a grinding machine, the 20-160-mesh material enters a finished product bin, the-160-mesh material passes through a disc screen, a small amount of the 20-160-mesh material is separated out and enters the finished product bin, and the-160-mesh material fine powder is packaged. Titanium slag is pre-screened through the primary vibrating screen, the pre-screening screen and the fine screen, meanwhile, the titanium slag is dispersed through the shaking assembly, the centrifugal assembly and the air blowing assembly arranged in the scattering device of the powder concentrator, spiral airflow is formed for powder concentration, and the powder concentration efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of finished titanium slag classification equipment, in particular to a process method for classifying finished titanium slag. Background Art

[0002] Titanium slag is a slag rich in titanium dioxide produced by electric furnace smelting. In recent years, due to the development of the production process of titanium dioxide chloride and titanium sponge, the demand for raw material high-titanium slag has increased. Compared with rutile, the cost is relatively low. However, the requirements for calcium and magnesium content and particle size of high-titanium slag are relatively high. There may be unqualified particle size ranges that affect the production process and product quality of titanium dioxide or titanium sponge.

[0003] The authorization announcement number CN112354703B discloses an adjustable three-separation powder selection machine, which includes: a three-separation powder selection chamber; a first motor, which is fixedly connected to the top center of the three-separation powder selection chamber; a second motor, which is fixedly connected to the top of the three-separation powder selection chamber and arranged close to the first motor; a cyclone, several of which are evenly connected to the side ends of the three-separation powder selection chamber and are connected to the three-separation powder selection chamber; a blower, the blower outlet is connected to the three-separation powder selection chamber, and the blower inlet is connected to the cyclone through a pipeline. The invention adopts a dual-axis dual-rotor powder selection structure to break up and classify materials, and adjusts the powder selection particle size and quantity by adjusting the air volume, rotation speed and differential speed. There is no external discharge, which realizes the internal circulation of the powder selection machine, reduces operating noise, has a compact structure, reduces energy consumption and civil engineering costs, and effectively improves the efficiency and accuracy of material sorting.

[0004] It can be seen that when the titanium slag is classified, it is not pre-treated, which reduces the classification efficiency. At the same time, the spreading plate in the powder classifier does not disperse the fallen titanium slag, and there is no air blowing device to form a rotating airflow, so the titanium slag cannot be classified efficiently.

[0005] In view of this, we propose a process method for grading finished titanium slag. Summary of the invention

[0006] In order to overcome the defects in the prior art, the purpose of the present invention is to provide a process for grading finished titanium slag to solve the problems raised in the above background technology.

[0007] To achieve the above object, the present invention provides a process for classifying finished titanium slag, comprising the following steps:

[0008] S1. The dried titanium slag is screened through a primary vibrating screen and a pre-screen in sequence. The material larger than 3 mm enters a grinder for grinding, and the material smaller than 3 mm enters a fine screen for further screening;

[0009] S2, the ground material is sent to the pre-screen for repeated screening, and then sent to the fine screen for screening;

[0010] S3, after fine screening, -20 mesh materials enter the powder selector through the weighing belt, and +20 mesh materials are sent to the grinder for repeated grinding;

[0011] S4, in the powder classifier, -20 mesh materials enter the discharge cone through the inlet, and then fall on the spreading device from the outlet, the first motor is started, one of the rotating right-angle rods is driven to rotate through the first belt, and then the other two rotating right-angle rods are rotated together, so that the shaking plate shakes, so that the material falls on the spreading plate, the output shaft of the first motor drives the first gear to rotate, and the spreading plate is driven to rotate through the meshing second gear to throw out the material, and then the fan is started to make the gas enter the main air pipe in the air blowing block, and blow out from the first auxiliary air pipe and the second auxiliary air pipe. At the same time, the rotation of the spreading plate drives the air blowing block to rotate, forming an upward spiral airflow, +20 mesh materials fall on the bottom of the machine body, and -20 mesh materials enter the rectifier rotor from the guide sheet under the action of the airflow, and the second motor is started to drive the rectifier rotor to rotate to break up the materials, 20-160 mesh materials fall into the inner cone, and -160 mesh materials enter the cyclone from the guide port;

[0012] S5. Finally, the +20 mesh material is taken out from the coarse powder discharge pipe and brought into the grinder for grinding through the return belt. The 20-160 mesh material is taken out from the medium powder discharge pipe and sent to the finished product silo through a large-angle 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 into the finished product silo through a disc screen. The -160 mesh material fine powder is packaged.

[0013] As a further improvement of the technical solution, a powder classifier for the process is adopted, wherein a feed cone, a rectifier rotor, an inner cone and a material spreading device are sequentially arranged inside the body of the powder classifier from top to bottom, and a plurality of cyclone cylinders connected to the inside of the body are also arranged on the side of the body, and the material spreading device comprises a shaking assembly fixed inside the body, a centrifugal assembly placed below the shaking assembly and rotatably connected thereto, and an air blowing assembly coaxially connected to the centrifugal assembly through a fastening bolt;

[0014] The shaking assembly includes a base fixed to the inside of the body, three rotating right-angle rods rotatably connected to the top of the base and distributed in a triangle, and a shaking plate rotatably connected to the top of the three rotating right-angle rods, a first motor is installed in the base, the output shaft of the first motor is connected to one of the rotating right-angle rods through a first belt transmission, and a first gear is coaxially connected to the output shaft of the first motor;

[0015] The centrifugal assembly includes a material spreading plate rotatably connected to the base, a column welded and fixed at the center of the top surface of the material spreading plate, a second gear welded and fixed on the outer side wall of the column, and a connecting plate welded and fixed at the center of the bottom surface of the material spreading plate, the column extends into the base, and the second gear is meshed with the first gear;

[0016] The air blowing assembly includes an air blowing block coaxially connected to the spreading plate, a main air pipe arranged inside the air blowing block, and a first auxiliary air pipe and a second auxiliary air pipe radially distributed inside the air blowing block and connected to the main air pipe.

[0017] As a further improvement of the technical solution, the top surface of the base is provided with a limit block with an internal annular groove at a position corresponding to the rotating right-angle rod, and the outer side wall of the base is provided with a plurality of fixing rods for fixing to the body.

[0018] As a further improvement of the present technical solution, a rotating block is provided at the end of the horizontal section of the rotating right-angle rod, a limiting ring adapted to the limiting block is provided on the outer side 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 of the technical solution, a plurality of triangular blocks are radially distributed on the top of the shaking plate, and a positioning block matched with the rotating block is provided on the bottom of the shaking plate.

[0020] As a further improvement of the technical solution, the top surface of the spreading tray is provided with a plurality of radially distributed fan plates, the center of the top surface of the spreading tray is provided with a groove matched with the size of the base, and the bottom surface of the spreading tray is provided with a plurality of radially distributed air grooves.

[0021] As a further improvement of the technical solution, a slot matching 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 matching the fastening bolts are provided in the slot.

[0022] As a further improvement of the technical solution, the air outlet of the first auxiliary air pipe faces the bottom surface of the material spreading tray, and the air outlet of the second auxiliary air pipe faces the gap between the material spreading tray and the machine body.

[0023] As a further improvement of the technical solution, the radius of the shaking plate 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 of the present technical solution, the aperture of the upper sieve in the primary vibrating screen is 8*20mm, and the aperture of the lower sieve is 5*5mm, the aperture of the upper sieve in the pre-screen is 8*25mm, and the aperture of the lower sieve is 3*3mm, the aperture of the upper sieve in the fine screen is 2*2mm, and the lower sieve is 20 mesh.

[0025] Compared with the prior art, the present invention has the following beneficial effects:

[0026] 1. The process method for grading the finished titanium slag is to pre-screen the titanium slag through a primary vibrating screen, a pre-screen and a fine screen, and to screen the slag step by step to avoid excessive pressure on the screen and increase the service life of the screen.

[0027] 2. The process method for grading the finished titanium slag is as follows: during the spreading process of the powder selection machine, the first motor is started, and the rotating right-angle rod is driven by the belt to rotate, so that the shaking plate shakes, and the fallen titanium slag is dispersed, so that it falls evenly on the spreading plate and is thrown out, and the gas is blown out from the first sub-branch pipe and the second sub-branch pipe through the rotating air blowing block to form a spiral airflow, thereby improving the powder selection efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The accompanying drawings described herein are only for explanation purposes and are not intended to limit the scope of the present invention in any way. In addition, the shapes and proportional dimensions of the various components in the figures are only schematic, used to help understand the present invention, and are not specifically limited to the shapes and proportional dimensions of the various components of the present invention. Those skilled in the art can select various possible shapes and proportional dimensions to implement the present invention according to the teachings of the present invention.

[0029] Figure 1 It is a schematic diagram of the overall structure flow of the present invention;

[0030] Figure 2 It is a schematic diagram of the internal structure of the powder classifier of the present invention;

[0031] Figure 3 It is a schematic structural diagram of the material spreading device of the present invention;

[0032] Figure 4 It is a cross-sectional view of the structure of the material spreading device of the present invention;

[0033] Figure 5 It is an exploded view of the material spreading device structure of the present invention;

[0034] Figure 6 It is an exploded view of the shaking assembly structure of the present invention;

[0035] Figure 7 This is one of the schematic diagrams of the centrifugal assembly structure of the present invention;

[0036] Figure 8This is the second schematic diagram of the centrifugal assembly structure of the present invention;

[0037] Fig. 9 It is a cross-sectional view of the structure of the air blowing assembly of the present invention;

[0038] The meaning of each number in the figure is:

[0039] 1. Primary vibrating screen;

[0040] 2. Pre-screening;

[0041] 3. Fine sieve;

[0042] 4. Weighing belt;

[0043] 5. Large inclination belt;

[0044] 6. Grinding machine;

[0045] 7. Disc screen;

[0046] 8. Return material belt;

[0047] 9. Powder selector; 91. Machine body; 911. Coarse powder discharge pipe; 92. Discharge cone; 921. Inlet; 922. Discharge; 93. Spreading device; 931. Shaking assembly; 9311. Base; 93111. Limit block; 93112. Fixed rod; 9312. Rotating right-angle rod; 93121. Rotating block; 93122. Limit ring; 93123. Belt groove; 9313. Shaking plate; 93131. Triangular block; 9314. First belt; 9315. First motor; 9316. First gear; 932. Centrifugal assembly; 9321. Spreading Plate; 93211, fan plate; 93212, groove; 93213, air groove; 9322, column; 9323, second gear; 9324, connecting plate; 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 sheet; 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 DESCRIPTION

[0048] The details of the present invention can be more clearly understood by combining the accompanying drawings with the description of the specific embodiments of the present invention. However, the specific embodiments of the present invention described herein are only used for the purpose of explaining the present invention and cannot be understood as limiting the present invention in any way. Under the guidance of the present invention, technicians can conceive of any possible variations based on the present invention, which should be regarded as falling within the scope of the present invention. The terms "installation" and "connection" should be understood in a broad sense, which can be directly connected or indirectly connected through an intermediate medium.

[0049] The terms "central axis", "vertical", "horizontal", "front", "back", "up", "down", "left", "right", "top", "bottom", "inside", "outside" and the like used herein to indicate positions or positional relationships are based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the equipment or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, in the description of the present invention, the meaning of "several" is two or more, unless otherwise clearly and specifically defined.

[0050] See also Figure 1-Figure 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 screened through a primary vibrating screen 1 and a pre-screen 2 in sequence. The material larger than 3 mm enters a grinder 6 for grinding, and the material smaller than 3 mm enters a fine screen 3 for further screening. Screening is performed step by step to reduce damage to the screen.

[0052] S2, the ground material is sent to the pre-screen 2 for repeated screening, and then sent to the fine screen 3 for screening;

[0053] S3, after passing through the fine screen 3, the -20 mesh material screened out contains a small amount of +20 material, the -20 mesh material enters the powder selector 9 through the weighing belt 4, and the +20 mesh material is sent to the grinder 6 for repeated grinding;

[0054] S4, in the powder classifier 9, the -20 mesh material enters the discharge cone 92 through the inlet 921, and then falls on the spreading device 93 from the outlet 922. The first motor 9315 is started, and one of the rotating right-angle rods 9312 is driven to rotate through the first belt 9314, so that the other two rotating right-angle rods 9312 rotate together, so that the shaking plate 9313 shakes, and the material is dispersed with the shaking of the shaking plate 9313 and falls from the edge; thereby, the material falls on the spreading plate 9321, and the output shaft of the first motor 9315 drives the first gear 9316 to rotate, and drives the spreading device 9323 through the meshing second gear 9323 The disk 9321 rotates to throw out the materials, and then the fan is started to make the gas enter the main air pipe 9332 in 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 rotation of the material spreading disk 9321 drives the air blowing block 9331 to rotate, forming an upward spiral airflow, and the +20 mesh materials fall on the bottom of the machine body 91. The -20 mesh materials enter the rectifier rotor 96 from the guide sheet 94 under the action of the airflow. The second motor 98 is started to drive the rectifier rotor 96 to rotate to break up the materials. The 20-160 mesh materials fall into the inner cone 95, and the -160 mesh materials enter 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 brought into the grinder 6 for grinding through the return belt 8. The 20-160 mesh material is taken out from the medium powder discharge pipe 951 and sent to the finished product silo through the high-angle belt 5. The -160 mesh material is taken out from the fine powder discharge pipe 971 and a small amount of 20-160 mesh material is separated into the finished product silo through the disc screen 7, and the -160 mesh material fine powder is packaged.

[0056] Among them, Figure 2-Figure 5 As shown, a feed cone 92, a rectifier rotor 96, an inner cone 95 and a material spreading device 93 are sequentially arranged inside the body 91 of the powder classifier 9 from top to bottom. A plurality of cyclones 97 connected to the inside of the body 91 are also arranged on the side of the body 91. The material spreading device 93 includes a shaking assembly 931 fixed inside the body 91, a centrifugal assembly 932 disposed below the shaking assembly 931 and rotatably connected thereto, and an air blowing assembly 933 coaxially connected to the centrifugal assembly 932 via a fastening bolt 934.

[0057] The shaking assembly 931 includes a base 9311 fixed inside the machine body 91, three rotating right-angle rods 9312 rotatably connected to the top of the base 9311 and distributed in a triangle, and a shaking plate 9313 rotatably connected to the top of the three rotating right-angle rods 9312. A first motor 9315 is installed in the base 9311. The output shaft of the first motor 9315 is connected to one of the rotating right-angle rods 9312 through a first belt 9314. The first motor 9315 drives the rotating right-angle rod 9312 to rotate through the first belt 9314. The output shaft of the first motor 9315 is also coaxially connected to a first gear 9316.

[0058] The centrifugal assembly 932 includes a material spreading disc 9321 rotatably connected to the base 9311, a column 9322 welded and fixed at the center of the top surface of the material spreading disc 9321, a second gear 9323 welded and fixed on the outer wall of the column 9322, and a connecting disc 9324 welded and fixed at the center of the bottom surface of the material spreading disc 9321. The column 9322 extends into the base 9311, and the second gear 9323 is meshed with the first gear 9316. The first motor 9315 drives the first gear 9316 to rotate, thereby rotating the second gear 9323, driving the material spreading disc 9321 to rotate and throwing materials outward.

[0059] The air blowing assembly 933 includes an air blowing block 9331 coaxially connected to the spreading plate 9321, a main air pipe 9332 arranged inside the air blowing block 9331, and a first sub-air pipe 9333 and a second sub-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 sub-air pipe 9333 and the second sub-air pipe 9334 to form a spiral upward airflow.

[0060] Specifically, a limit block 93111 with an internal annular groove is provided on the top surface of the base 9311 at the position corresponding to the rotating right-angle rod 9312, and a plurality of fixing rods 93112 for fixing to the body 91 are provided on the outer wall of the base 9311. One end of the fixing rod 93112 is welded and fixed to the outer wall of the base 9311, and the other end is welded and fixed to the inner wall of the body 91.

[0061] Furthermore, a rotating block 93121 is provided at the end of the horizontal section of the rotating right-angle rod 9312, and a limiting ring 93122 matched with the limiting block 93111 is provided on the outer 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 transmission-connected to the first belt 9314, and the belt groove 93123 prevents the first belt 9314 from deflecting when it rotates.

[0062] Specifically, a plurality of triangular blocks 93131 are radially distributed on the top of the shaking plate 9313, and a positioning block matched with the rotating block 93121 is provided on the bottom of the shaking plate 9313. The triangular blocks 93131 disperse the materials scattered on the shaking plate 9313 when they slide down.

[0063] In addition, the top surface of the scattering tray 9321 is provided with a plurality of radially distributed fan plates 93211, which facilitate the scattering tray 9321 to throw out materials; a groove 93212 adapted to the size of the base 9311 is opened at the center of the top surface of the scattering tray 9321, and a plurality of radially distributed air grooves 93213 are opened on the bottom surface of the scattering tray 9321, and the air grooves 93213 guide the airflow.

[0064] Furthermore, a slot 93311 matching the size of the connecting plate 9324 is provided at the center of the top surface of the air blowing block 9331, and a plurality of threaded holes 93312 matching the fastening bolts 934 are provided in the slot 93311. The connecting plate 9324 is clamped in 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 is toward the bottom surface of the scattering plate 9321, and the air outlet of the second auxiliary air pipe 9334 is toward the gap between the scattering plate 9321 and the body 91. The first auxiliary air pipe 9333 drives the air flow to blow toward the bottom surface of the scattering plate 9321 and blow 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 shaking plate 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 shaking plate 9313 falls on the spreading plate 9321.

[0067] Furthermore, the aperture of the upper screen in the primary vibrating screen 1 is 8*20mm, and the aperture of the lower screen is 5*5mm, the aperture of the upper screen in the pre-screen 2 is 8*25mm, and the aperture of the lower screen is 3*3mm, the aperture of the upper screen in the fine screen 3 is 2*2mm, and the lower screen is 20 mesh. The primary vibrating screen 1, the pre-screen 2 and the fine screen 3 use screens with different aperture sizes to screen the materials 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 their purpose is to enable people familiar with the technology to understand the content of the present invention and implement it accordingly, and they cannot be used to limit the protection scope of the present invention. Any equivalent changes or modifications made according to the spirit of the present invention should be included in the protection scope of the present invention.

Claims

1. A process for classifying finished titanium slag, characterized in that: The following steps are involved: S1. The dried titanium slag is screened through a primary vibrating screen (1) and a pre-screen (2) in sequence. Materials larger than 3 mm enter a grinder (6) for grinding, and materials smaller than 3 mm enter a fine screen (3) for further screening. S2, the ground material is sent to the pre-screen (2) for repeated screening, and then sent to the fine screen (3) for screening; S3, after passing through the fine screen (3), the -20 mesh (including some +20 mesh) materials enter the powder selector (9) through the weighing belt (4), and the +20 mesh materials are sent to the grinder (6) for repeated grinding; S4, in the powder classifier (9), -20 mesh (including some +20 mesh) materials enter the discharge cone (92) through the feed port (921), and then fall on the spreading device (93) from the discharge port (922). The first motor (9315) is started, and one of the rotating right-angle rods (9312) is driven to rotate through the first belt (9314), thereby causing the other two rotating right-angle rods (9312) to rotate together, causing the shaking plate (9313) to shake, thereby causing the material to fall on the spreading plate (9321). The output shaft of the first motor (9315) drives the first gear (9316) to rotate, and drives the spreading plate (9321) to rotate through the meshing second gear (9323). The blower (9321) is driven to move, the material is thrown out, and the blower (9322) is started, so that the gas enters the main air pipe (9332) in the air blowing block (9331), and is blown out from the first auxiliary air pipe (9333) and the second auxiliary air pipe (9334). At the same time, the material spreading plate (9321) rotates to drive the air blowing block (9331) to rotate, forming an upward spiral airflow, and the +20 mesh material falls on the bottom of the machine body (91), and the -20 mesh material enters the rectifier rotor (96) from the guide sheet (94) under the action of the airflow, and the second motor (98) is started to drive the rectifier rotor (96) to rotate to break up the material, and 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 brought into the grinder (6) through 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 through the high-angle belt (5). The -160 mesh material is taken out from the fine powder discharge pipe (971) and a small amount of 20-160 mesh material is separated and sent to the finished product silo through the disc screen (7). The -160 mesh material fine powder is packaged.

2. According to the process method for grading finished titanium slag as described in claim 1, a powder classifier (9) used for the process is adopted, and the body (91) of the powder classifier (9) is provided with a discharge cone (92), a rectifier rotor (96), an inner cone (95) and a spreading device (93) in sequence from top to bottom, and the side of the body (91) is also provided with a plurality of cyclones (97) connected to the inside of the body (91), characterized in that: The material spreading device (93) comprises a shaking assembly (931) fixed in the machine body (91), a centrifugal assembly (932) disposed below the shaking assembly (931) and rotatably connected thereto, and an air blowing assembly (933) coaxially connected to the centrifugal assembly (932) via a fastening bolt (934); The shaking assembly (931) comprises a base (9311) fixed inside the body (91), three rotating right-angle rods (9312) rotatably connected to the top of the base (9311) and distributed in a triangle, and a shaking plate (9313) rotatably connected to the top of the three rotating right-angle rods (9312), a first motor (9315) is installed in the base (9311), the output shaft of the first motor (9315) is connected to one of the rotating right-angle rods (9312) through a first belt (9314), and a first gear (9316) is coaxially connected to the output shaft of the first motor (9315); The centrifugal assembly (932) comprises a material spreading plate (9321) rotatably connected to the base (9311), a column (9322) welded and fixed at the center of the top surface of the material spreading plate (9321), a second gear (9323) welded and fixed on the outer side wall of the column (9322), and a connecting plate (9324) welded and fixed at the center of the bottom surface of the material spreading plate (9321), the column (9322) extends into the base (9311), and the second gear (9323) is meshed with the first gear (9316); The air blowing assembly (933) includes an air blowing block (9331) coaxially connected to the spreading plate (9321), a main air pipe (9332) arranged 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).

3. The process for classifying finished titanium slag according to claim 2, characterized in that: The top surface of the base (9311) is provided with a limit block (93111) with an internal annular groove at a position corresponding to the rotating right-angle rod (9312), and the outer side wall of the base (9311) is provided with a plurality of fixing rods (93112) for fixing with the machine body (91).

4. The process for classifying finished titanium slag according to claim 3, characterized in that: A rotating block (93121) is provided at the end of the horizontal section of the rotating right-angle rod (9312), a limiting ring (93122) adapted to the limiting block (93111) is provided on the outer side wall of the rotating right-angle rod (9312), and a belt groove (93123) is provided on the vertical section of the rotating right-angle rod (9312) transmission-connected to the first belt (9314).

5. The process for classifying finished titanium slag according to claim 4, characterized in that: A plurality of triangular blocks (93131) are radially distributed on the top of the shaking plate (9313), and a positioning block matched with the rotating block (93121) is provided on the bottom surface of the shaking plate (9313).

6. The process for classifying finished titanium slag according to claim 5, characterized in that: The top surface of the material spreading plate (9321) is provided with a plurality of radially distributed fan plates (93211), the center of the top surface of the material spreading plate (9321) is provided with a groove (93212) matched with the size of the base (9311), and the bottom surface of the material spreading plate (9321) is provided with a plurality of radially distributed air grooves (93213).

7. The process for classifying finished titanium slag according to claim 6, characterized in that: A slot (93311) matching the size of the connecting plate (9324) is provided at the center of the top surface of the air blowing block (9331), and a plurality of threaded holes (93312) matching the fastening bolts (934) are provided in the slot (93311).

8. The process for classifying finished titanium slag according to claim 7, characterized in that: The air outlet of the first auxiliary air pipe (9333) faces the bottom surface of the material spreading plate (9321), and the air outlet of the second auxiliary air pipe (9334) faces the gap between the material spreading plate (9321) and the machine body (91).

9. The process for classifying finished titanium slag according to claim 8, characterized in that: The radius of the shaking plate (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).

10. The process for classifying finished titanium slag according to claim 9, characterized in that: The aperture of the upper screen in the primary vibrating screen (1) is 8*20mm, and the aperture of the lower screen is 5*5mm. The aperture of the upper screen in the pre-screen (2) is 8*25mm, and the aperture of the lower screen is 3*3mm. The aperture of the upper screen in the fine screen (3) is 2*2mm, and the aperture of the lower screen is 20 mesh.

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