Grinding and grading of high-titanium slag by air classifier

Abstract

The utility model relates to metallurgical auxiliary equipment technical field, concretely is high -titanium slag after grinding and classifies with airflow classificator, including the airflow classificator main part that has the raw material feeding pipe connected, the first end of raw material feeding pipe is connected with dispersion mechanism, and dispersion mechanism includes primary dispersion subassembly and secondary dispersion subassembly, and primary dispersion subassembly includes outer tube and first motor, and first motor has square shaft coaxially connected, and a pair of fixed disc and a rotating disc are equipped outside square shaft, and secondary dispersion subassembly includes elbow pipe, sleeve pipe and second motor, and second motor has the pivot shaft coaxially connected, and pivot shaft is equipped with a plurality of rectangular vane outside. The airflow classificator for high -titanium slag after grinding and classifying, through the dispersion mechanism set, makes high -titanium slag grinding powder before entering airflow classificator main part, can first tear apart and scatter the agglomerated particles with the cooperation of fixed disc and rotating disc of primary dispersion subassembly, and then further disperses through the vane of secondary dispersion subassembly, avoids the agglomerated particles and directly enters airflow classificator main part.

Description

Technical Field

[0001] This utility model relates to the field of metallurgical auxiliary equipment technology, specifically an air classifier for classifying high-titanium slag after grinding. Background Technology

[0002] High-titanium slag is a key raw material in the titanium metallurgy field. After grinding, it needs to be classified to separate particles that meet the purity and particle size requirements to meet subsequent production needs. Air classifiers, which use airflow to classify particles, are widely used in the deep processing of high-titanium slag. They separate particles based on differences in particle size and density, using airflow to drive particle movement, providing precise particle size control for subsequent purification and smelting processes. Therefore, they are an important material pretreatment device in the high-titanium slag industry chain.

[0003] Utility model patent CN221086008U discloses an air classifier for purification. This air classifier includes a classifier tank, with a fixed rod fixed inside the tank. A rotating rod is movably mounted at the end of the fixed rod. A fan is mounted on the outer wall of the rotating rod, and two sets of connecting rods are fixed to the outer wall of the rotating rod, with scrapers at the top of the connecting rods. This air classifier, by incorporating the rotating rod, fan, and scrapers, allows airflow to enter from the raw material inlet during operation, continuously impacting the fan and causing it to rotate. The rotating fan drives the rotating rod, causing the scrapers to continuously scrape material along the inner wall of the classifier. The fan allows the airflow itself to drive the rotating rod, fully utilizing the classifier's resources. The scrapers provide continuous, all-around cleaning of the inner wall near the coarse powder outlet, preventing larger materials from clogging the coarse powder inlet.

[0004] In this purification air classifier, the material enters the classifier tank directly through the raw material inlet. When processing materials that are prone to agglomeration, such as high-titanium slag grinding powder, the agglomerated particles tend to accumulate at the raw material inlet, resulting in uneven feeding. This may cause particle congestion in the initial stage of classification and affect the stability of the classification process. In view of this, we propose an air classifier for the classification of high-titanium slag after grinding. Utility Model Content

[0005] The purpose of this invention is to provide an air classifier for classifying high-titanium slag after grinding, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] An air classifier for classifying high-titanium slag after grinding includes an air classifier body. The bottom end of the air classifier body is connected to a raw material feed pipe, and the first end of the raw material feed pipe is connected to a dispersing mechanism. The dispersing mechanism is used to disperse the high-titanium slag grinding powder to be entered into the air classifier body. The dispersing mechanism includes a primary dispersing component and a secondary dispersing component connected to the bottom end of the primary dispersing component, and the end of the secondary dispersing component is connected to the first end of the raw material feed pipe.

[0008] The primary dispersion component consists of an outer cylinder and a first motor installed at the top of the outer cylinder. The top of the outer cylinder is fitted with a top cover, and the output shaft of the first motor is coaxially connected to a square shaft at its end. A pair of fixed discs are fitted on the outer side of the bottom of the square shaft. The fixed discs are fixedly connected to the outer cylinder, and a rotating disc is sandwiched between the two fixed discs. The square shaft passes through the rotating disc along the axial direction. The top surfaces of both the fixed discs and the rotating disc are provided with annular grooves with a V-shaped cross-section. Several slots are provided along the annular array at the bottom of the grooves.

[0009] The secondary dispersion component includes a bend, a sleeve connected to the end of the bend, and a second motor mounted on the bend. The output shaft of the second motor is coaxially connected to a rotating shaft. The outer periphery of the rotating shaft is provided with several rectangular blades arranged in a ring array, and the blades are located inside the sleeve.

[0010] Preferably, the outer surface of the top of the outer cylinder is connected to an inclined connecting pipe, and the bottom end of the outer cylinder is provided with a connecting port, which is connected to the first end of the bent pipe.

[0011] Preferably, a connecting rod is provided between the bottom periphery of the outer cylinder and the outer shell of the air classifier body, and the first and last ends of the connecting rod are fixedly connected to the outer cylinder and the air classifier body respectively by bolts.

[0012] In these two settings, the inclined connecting pipe facilitates the entry of materials into the outer cylinder, and the connection port enables the material to be conveyed to the curved pipe; the connecting rod is fixed by bolts to provide stable support for the outer cylinder.

[0013] Preferably, the first motor is installed at the top of the top cover, and the square shaft is coaxially sleeved inside the outer cylinder; a convex shaft is provided at the center of the rotating disk, and the top and bottom ends of the convex shaft pass through the two fixed disks respectively and are rotatably connected to the fixed disks; a square shaft hole is opened at the center of the convex shaft, and the square shaft passes through the square shaft hole.

[0014] In this configuration, the top cover provides a mounting base for the first motor, and the coaxial arrangement of the square shaft ensures stable rotation; the convex shaft cooperates with the square shaft hole to enable the rotating disk to rotate synchronously with the square shaft.

[0015] Preferably, the outer peripheral surface of the fixed disk is embedded with a plurality of pins, which penetrate the outer shell of the outer cylinder, and the fixed disk is positioned and installed inside the outer cylinder by means of the pins.

[0016] In this configuration, the pin passes through the outer cylinder and the fixed plate, enabling precise positioning of the fixed plate within the outer cylinder and preventing displacement during operation.

[0017] Preferably, the fixed disk and the rotating disk have the same shape, with the top of the rotating disk fitting against the bottom of the upper fixed disk, and the top of the lower fixed disk fitting against the bottom of the rotating disk.

[0018] In this setup, the materials are identical in shape and fit together vertically, creating a stable relative motion between the rotating and fixed discs. This generates uniform compression and shearing forces on the material to break up agglomerated particles.

[0019] Preferably, a motor mount is provided on the outer wall of the bend, a second motor is mounted on the motor mount, and the output shaft of the second motor extends into the bend.

[0020] Preferably, the raw material feed pipe is inclined downward from the first end to the last end, and the sleeve is connected between the bend and the raw material feed pipe; a retainer is fixed inside the sleeve, and the end of the rotating shaft extends into the middle of the retainer and is rotatably connected to the retainer.

[0021] In these two configurations, the motor mount provides stable mounting support for the second motor, the output shaft extends into the bend to ensure power transmission, the inclined raw material feed pipe assists material flow, and the cage supports the end of the rotating shaft to prevent rotation and shaking.

[0022] Compared with the prior art, the beneficial effects of this utility model are:

[0023] 1. The air classifier for classifying high-titanium slag after grinding has a dispersion mechanism that allows the high-titanium slag grinding powder to be torn apart and dispersed by the fixed and rotating discs of the primary dispersion component before entering the main body of the air classifier. Then, it is further dispersed by the blades of the secondary dispersion component, thus preventing the agglomerated particles from directly entering the main body of the air classifier.

[0024] 2. The high-titanium slag is ground and then classified by an air classifier. The annular groove and annular array of funnels in the primary dispersion component enable the dispersed particles to pass through the funnels evenly into the subsequent structure, reducing the situation of excessively high local particle concentration.

[0025] 3. The air classifier for classifying high-titanium slag after grinding uses rectangular blades located inside the casing in the secondary dispersion component to further disperse the particles after the primary dispersion, ensuring that the particles entering the air classifier body are uniformly dispersed and avoiding particle congestion in the initial stage of classification. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0027] Figure 2This is a schematic diagram of the dispersing mechanism in this utility model;

[0028] Figure 3 This is an exploded view of the primary dispersion component in this utility model;

[0029] Figure 4 This is a partially exploded view of the primary dispersion component in this utility model;

[0030] Figure 5 This is an exploded view of the secondary dispersion component in this utility model;

[0031] The meanings of the labels in the diagram are as follows:

[0032] 100. Main body of the air classifier; 110. Raw material feed pipe;

[0033] 200. Dispersion mechanism; 210. Primary dispersion assembly; 211. Outer cylinder; 2111. Top cover; 2112. Connecting pipe; 2113. Connection port; 2114. Connecting rod; 212. First motor; 2121. Square shaft; 2122. Fixed disk; 2123. Rotating disk; 2124. Groove; 2125. Leakage groove; 220. Secondary dispersion assembly; 221. Bend; 222. Sleeve; 2221. Cage; 223. Second motor; 2231. Rotating shaft; 2232. Blade. Detailed Implementation

[0034] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0035] Please see Figures 1-5An air classifier for classifying high-titanium slag after grinding includes an air classifier body 100, a raw material feed pipe 110, and a dispersing mechanism 200. The bottom end of the air classifier body 100 is connected to the raw material feed pipe 110, and the top end of the raw material feed pipe 110 is connected to the dispersing mechanism 200. The dispersing mechanism 200 is used to disperse the high-titanium slag grinding powder before it enters the air classifier body 100. By dispersing the high-titanium slag grinding powder in advance through the dispersing mechanism 200, agglomerated particles can be prevented from directly entering the air classifier body 100, reducing particle congestion in the initial stage of classification. The feed pipe 110 slopes downwards from the beginning to the end. This sloped design helps the material flow with the help of gravity, reducing the probability of material accumulation in the feed pipe 110. A connecting rod 2114 is provided between the bottom periphery of the outer cylinder 211 and the outer shell of the air classifier body 100. The two ends of the connecting rod 2114 are fixedly connected to the outer cylinder 211 and the air classifier body 100 by bolts. The connecting rod 2114 can provide stable support for the primary dispersion component 210, ensuring that the dispersion mechanism 200 remains structurally stable during operation.

[0036] In this invention, the dispersion mechanism 200 includes a primary dispersion component 210 and a secondary dispersion component 220. The secondary dispersion component 220 is connected to the bottom end of the primary dispersion component 210, and the end of the secondary dispersion component 220 is connected to the beginning end of the raw material feed pipe 110. The primary dispersion component 210 and the secondary dispersion component 220 form a two-stage dispersing structure, which can gradually refine the dispersion effect and improve the dispersion uniformity of the high-titanium slag grinding powder. The primary dispersion component 210 consists of an outer cylinder 211, a first motor 212, a top cover 2111, a square shaft 2121, and a solid... The primary dispersion component 2122 consists of a fixed plate 2122, a rotating plate 2123, a groove 2124, a trough 2125, a connecting pipe 2112, and a connecting port 2113. These components work together to achieve the initial dispersing and guiding of the high-titanium slag grinding powder. The secondary dispersion component 220 consists of a bent pipe 221, a sleeve 222, a second motor 223, a rotating shaft 2231, a blade 2232, a motor base, and a retainer 2221. These components work together to further organize the material after the primary dispersion, ensuring that the material entering the raw material feed pipe 110 is in a uniformly dispersed state.

[0037] like Figures 1-4As shown, specifically, a top cover 2111 is fitted to the top of the outer cylinder 211. The top cover 2111 protects the internal structure of the primary dispersion component 210 and provides a mounting base for the first motor 212. The first motor 212 is mounted on the top of the top cover 2111, and the end of the output shaft of the first motor 212 is coaxially connected to the square shaft 2121. The first motor 212 provides power to the square shaft 2121, driving it to rotate stably. The square shaft 2121 is coaxially sleeved inside the outer cylinder 211. The coaxial design ensures the concentricity of the square shaft 2121 during rotation, preventing deviation from affecting the dispersion effect. The bottom of the square shaft 2121... A pair of fixed discs 2122 are fitted on the outer side. Several pins are embedded on the outer surface of the fixed discs 2122. The pins pass through the outer shell of the outer cylinder 211, and the fixed discs 2122 are positioned and installed inside the outer cylinder 211 by the pins. The pins can firmly fix the fixed discs 2122 inside the outer cylinder 211, ensuring that the fixed discs 2122 do not shift during operation. A rotating disc 2123 is sandwiched between the two fixed discs 2122. A square shaft 2121 passes through the rotating disc 2123 axially. When the square shaft 2121 rotates, it can drive the rotating disc 2123 to rotate synchronously, so that the rotating disc 2123 and the fixed discs 2122 form relative motion. A convex shaft is provided at the center of the rotating disk 2123. The top and bottom ends of the convex shaft pass through two fixed disks 2122 respectively and are rotatably connected to the fixed disks 2122. A square shaft hole is opened at the center of the convex shaft, through which a square shaft 2121 passes. The convex shaft guides the rotation of the rotating disk 2123, ensuring stable rotation of the rotating disk 2123 around the fixed axis. The fixed disks 2122 and 2123 have the same shape. The top of the rotating disk 2123 fits into the bottom of the upper fixed disk 2122, and the top of the lower fixed disk 2122 fits into the bottom of the rotating disk 2123. This fitting design allows the agglomerated particles to adhere to the rotating disk 2123 and the fixed disk 2122. The fixed disks 2122 are subjected to compression and shearing forces, which tear and disperse the agglomerated particles. Both the fixed disks 2122 and the rotating disks 2123 have annular grooves 2124 with a V-shaped cross-section on their top surfaces. The V-shaped grooves 2124 can guide and gather the material, so that the material is concentrated in the grooves 2124 and is dispersed. Several perforated grooves 2125 are arranged along the annular array at the bottom of the grooves 2124. The perforated grooves 2125 distributed in the annular array can ensure that the dispersed material passes through evenly, avoid local material accumulation, and screen out large particles that are not fully dispersed, so that they can continue to be processed in the grooves 2124.

[0038] like Figures 1-3As shown, further, the outer surface of the top of the outer cylinder 211 is connected to an inclined connecting pipe 2112. The inclined connecting pipe 2112 facilitates the access of external material conveying equipment, and at the same time, the inclined angle helps the material to smoothly enter the interior of the outer cylinder 211, reducing the material residue in the connecting pipe 2112. The bottom end of the outer cylinder 211 is provided with a connecting port 2113, which is connected to the first end of the bend 221. The connecting port 2113 can realize the stable connection between the outer cylinder 211 and the bend 221, ensuring that the material after the primary dispersion can smoothly enter the secondary dispersion component 220.

[0039] like Figure 1 , Figure 2 and Figure 5 As shown, a motor mount is provided on the outer wall of the bend 221, and the second motor 223 is mounted on the motor mount. The motor mount provides stable support for the second motor 223, ensuring that the second motor 223 does not shake during operation. The output shaft of the second motor 223 extends into the bend 221, and the end of the output shaft is coaxially connected to the rotating shaft 2231. The second motor 223 can drive the rotating shaft 2231 to rotate, providing power for the secondary dispersion. Several rectangular blades 2232 are arranged in a ring array around the end of the rotating shaft 2231. When the rectangular blades 2232 in the ring array rotate, they can form a uniform airflow and mechanical stirring force to further disperse and comb the material. The end of the bend 221 is connected to the sleeve 222, and the blades 2232 are located inside the sleeve 222. The sleeve 222 can protect the blade 2232 and restrict the material flow path, ensuring that the material can fully contact the blade 2232. The sleeve 222 is connected between the bend 221 and the raw material feed pipe 110. The sleeve 222 can realize the smooth connection between the secondary dispersion component 220 and the raw material feed pipe 110, ensuring that the material after secondary dispersion enters the raw material feed pipe 110 stably. A retainer 2221 is fixed inside the sleeve 222. The end of the rotating shaft 2231 extends into the middle of the retainer 2221 and is rotatably connected to the retainer 2221. The retainer 2221 can support the end of the rotating shaft 2231, preventing the rotating shaft 2231 from shaking during rotation due to its long length, and improving the stability of the rotation of the rotating shaft 2231 and the blade 2232.

[0040] It is worth noting that the first motor 212 and the second motor 223 involved in this utility model are both existing conventional technologies, and will not be described in detail in this utility model.

[0041] In this embodiment, the air classifier for classifying high-titanium slag after grinding operates as follows: First, the high-titanium slag powder enters the outer cylinder 211 through the inclined connecting pipe 2112 and falls into the V-shaped groove 2124 on the top surface of the fixed disk 2122 and the rotating disk 2123. Then, the first motor 212 is started, which drives the square shaft 2121 to rotate. The square shaft 2121 drives the rotating disk 2123 to rotate synchronously. The relative movement between the rotating disk 2123 and the fixed disk 2122 generates compression and shearing forces on the agglomerated particles in the groove 2124, tearing and breaking them apart. The broken particles then pass through the groove 2124. The material falls through the trough 2125 at the bottom of the tank and enters the bend 221 through the connection port 2113 at the bottom of the outer cylinder 211. Then, the second motor 223 is started, which drives the rotating shaft 2231 to rotate. The rotating shaft 2231 drives the rectangular blades 2232 of the annular array to rotate inside the sleeve 222, further dispersing and combing the material entering the bend 221 to ensure that the material is evenly dispersed. Finally, the uniform material after secondary dispersion enters the inclined raw material feed pipe 110 through the sleeve 222, flows along the raw material feed pipe 110 under the action of gravity, and finally enters the air classifier body 100 for classification.

[0042] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. An air classifier for classifying high-titanium slag after grinding, comprising an air classifier body (100), wherein a raw material feed pipe (110) is connected to the bottom end of the air classifier body (100), characterized in that: The first end of the raw material feed pipe (110) is connected to a dispersing mechanism (200), which is used to disperse the high-titanium slag grinding powder to be fed into the air classifier body (100); the dispersing mechanism (200) includes a primary dispersing component (210) and a secondary dispersing component (220) connected to the bottom end of the primary dispersing component (210), and the end of the secondary dispersing component (220) is connected to the first end of the raw material feed pipe (110); The primary dispersion component (210) consists of an outer cylinder (211) and a first motor (212) installed at the top of the outer cylinder (211). The top of the outer cylinder (211) is fitted with a top cover (2111), and the output shaft of the first motor (212) is coaxially connected to a square shaft (2121). A pair of fixed discs (2122) are sleeved on the outer side of the bottom of the square shaft (2121). The fixed discs (2122) are fixedly connected to the outer cylinder (211), and a rotating disc (2123) is sandwiched between the two fixed discs (2122). The square shaft (2121) passes through the rotating disc (2123) axially. The top surfaces of the fixed discs (2122) and the rotating disc (2123) are both provided with annular grooves (2124) with a V-shaped cross-section. Several slots (2125) are provided along the annular array at the bottom of the grooves (2124). The secondary dispersion component (220) includes a bend (221), a sleeve (222) connected to the end of the bend (221), and a second motor (223) installed on the bend (221). The output shaft of the second motor (223) is coaxially connected to a rotating shaft (2231). The outer periphery of the end of the rotating shaft (2231) is provided with a plurality of rectangular blades (2232) arranged in a ring array, and the blades (2232) are located inside the sleeve (222).

2. The air classifier for classifying high-titanium slag after grinding according to claim 1, characterized in that: An inclined connecting pipe (2112) is connected to the outer surface of the top of the outer cylinder (211), and a connecting port (2113) is provided at the bottom of the outer cylinder (211), which is connected to the head end of the bend (221).

3. The air classifier for classifying high-titanium slag after grinding according to claim 1, characterized in that: A connecting rod (2114) is provided between the bottom periphery of the outer cylinder (211) and the outer shell of the air classifier body (100). The first and last ends of the connecting rod (2114) are fixedly connected to the outer cylinder (211) and the air classifier body (100) respectively by bolts.

4. The air classifier for classifying high-titanium slag after grinding according to claim 1, characterized in that: The first motor (212) is installed on the top of the top cover (2111), and the square shaft (2121) is coaxially sleeved inside the outer cylinder (211). The rotating disk (2123) has a convex shaft at its axis. The top and bottom ends of the convex shaft pass through two fixed disks (2122) respectively and are rotatably connected to the fixed disks (2122). A square shaft hole is opened at the axis of the convex shaft, and the square shaft (2121) passes through the square shaft hole.

5. The air classifier for classifying high-titanium slag after grinding according to claim 1, characterized in that: The outer peripheral surface of the fixed disk (2122) is embedded with several pins, which penetrate the outer shell of the outer cylinder (211). The fixed disk (2122) is positioned and installed inside the outer cylinder (211) by the pins.

6. The air classifier for classifying high-titanium slag after grinding according to claim 1, characterized in that: The fixed disk (2122) and the rotating disk (2123) have the same shape. The top of the rotating disk (2123) is attached to the bottom of the upper fixed disk (2122), and the top of the lower fixed disk (2122) is attached to the bottom of the rotating disk (2123).

7. The air classifier for classifying high-titanium slag after grinding according to claim 1, characterized in that: A motor mount is provided on the outer wall of the bent pipe (221), and a second motor (223) is mounted on the motor mount, with the output shaft of the second motor (223) extending into the bent pipe (221).

8. The air classifier for classifying high-titanium slag after grinding according to claim 1, characterized in that: The raw material feed pipe (110) is inclined downward from the first end to the last end. The sleeve (222) is connected between the bend (221) and the raw material feed pipe (110). A retainer (2221) is fixed inside the sleeve (222). The end of the rotating shaft (2231) extends into the middle of the retainer (2221) and is rotatably connected to the retainer (2221).

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