Vortex powder concentrator for preparing limestone powder

Abstract

The utility model relates to the technical field of limestone powder preparation, and discloses a vortex powder concentrator for limestone powder preparation, which comprises a shell, the top end of the shell is fixedly communicated with a feed pipe, and the outer wall of the shell is fixedly communicated with a plurality of connecting pipes which are annularly arranged. According to the vortex powder concentrator for limestone powder preparation, through the arrangement of the vortex powder concentration structure, limestone powder to be subjected to powder concentration is fed to a dispersion plate in a conical discharging barrel from a feeding pipe, meanwhile, a driving motor is started, and the driving motor drives an anti-blocking structure and a rotating barrel to rotate through a rotating shaft; limestone powder on a dispersing plate enters a conical discharging barrel through a second discharging hole, then a pushing plate rotates along with the dispersing plate, the limestone powder in the conical discharging barrel enters a rotating barrel through a first discharging hole, and therefore the feeding amount of the limestone powder is reduced, the limestone powder can slide down smoothly, and accumulation and blockage are prevented; the powder selecting efficiency is guaranteed, smooth and stable feeding is guaranteed, and continuous and efficient operation of the powder selecting machine is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of limestone powder preparation technology, specifically to an eddy current classifier for limestone powder preparation. Background Technology

[0002] Limestone powder is the commercial name for limestone as a mineral raw material. It is widely used in the manufacture of products such as paper, rubber, paint, coatings, pharmaceuticals, cosmetics, animal feed, sealants, adhesives, and polishing. In the preparation of limestone, after grinding, coarse and fine powders need to be separated for further processing and utilization.

[0003] A limestone powder preparation eddy current classifier disclosed in Chinese Utility Model Patent Application Publication CN209866667U involves directly pouring limestone powder into the main cylinder through a feed pipe. A motor drives a transmission shaft to rotate the central rotor, causing the limestone powder to fall onto a spreading disc under the obstruction of the rotor blades. The transmission shaft then rotates the spreading disc to evenly distribute the limestone powder within the main cylinder. This spreading disc increases the uniformity of the limestone powder being blown by the air, and the blades indirectly increase the contact between the air and the limestone powder. However, during the eddy current classification process, the simple feed structure design, lacking an effective mechanism for guiding large volumes of material, can lead to a large amount of limestone powder clogging within the machine, preventing timely and effective separation and reducing classification efficiency. Therefore, we propose an eddy current classifier for limestone powder preparation to address these issues. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides an eddy current classifier for limestone powder preparation, which solves the problems mentioned in the background art.

[0005] The technical solution adopted by this utility model to solve its technical problem is: a vortex classifier for limestone powder preparation, including a shell, a feed pipe fixedly connected to the top of the shell, a plurality of connecting pipes arranged in a ring fixedly connected to the outer wall of the shell, a fine material outlet pipe fixedly connected to one end of the connecting pipe, a feeding structure provided inside the shell, a vortex classifier structure provided inside the shell, a vortex air inlet pipe fixedly connected to the outer wall of the shell, and a coarse powder outlet pipe fixedly connected to the bottom of the shell;

[0006] The feeding structure is used to partially feed limestone powder, and the eddy current powder separation structure is used to separate the limestone powder after it enters the shell.

[0007] By adopting the above technical solution, there are four fine material outlet pipes, and the four fine material outlet pipes are located on the upper part of the outer wall of the shell. Moreover, one end of the connecting pipe connected to the fine material outlet pipe is inclined and connected to the inside of the shell, which facilitates the rapid collection of fine powder.

[0008] Furthermore, the feeding structure includes a conical feeding cylinder, a feeding hole, and a movable hole. The outer wall of the conical feeding cylinder is fixedly installed on the inner wall of the outer shell. A symmetrical feeding hole is provided at the bottom of the inner wall of the conical feeding cylinder, and a movable hole is provided at the center of the bottom end of the conical feeding cylinder.

[0009] Furthermore, the eddy current powder separation structure includes a drive motor, a rotating shaft, a feeding disc, a rotating drum, a discharge hole one, a discharge hole two, and an anti-clogging structure. The drive motor is fixedly installed at the top of the outer shell, and a rotating shaft is fixedly connected inside the drive motor. A feeding disc is fixedly connected to the bottom end of the rotating shaft, and a rotating drum is fixedly connected to the outer wall of the rotating shaft. Several discharge holes one are arranged in a ring on the outer wall of the rotating drum, and several discharge holes two are arranged in a ring at the bottom end of the rotating drum. An anti-clogging structure is provided on the outer wall of the rotating shaft above the rotating drum.

[0010] By adopting the above technical solution, the spreading disc is cone-shaped. In this way, the limestone powder falling on the spreading disc is dispersed and thrown into the outer shell under the action of centrifugal force. The heavier coarse powder falls into the coarse powder discharge pipe at the bottom of the outer shell and is discharged from the coarse powder discharge pipe.

[0011] The anti-clogging structure is used to ensure smooth discharge of limestone powder inside the material feeding structure.

[0012] Furthermore, the anti-clogging structure includes a conical connecting block, a conical groove, a dispersing plate, a second discharge hole, and a pusher plate. The top of the conical connecting block is fixedly connected to the outer wall of the rotating shaft. The bottom of the conical connecting block has a conical groove. The bottom of the conical connecting block is fixedly connected to a dispersing plate. The outer wall of the dispersing plate has several discharge holes arranged in a ring. The lower surface of the dispersing plate is fixedly connected to several pushers arranged in a ring.

[0013] Furthermore, the bottom end of the pusher plate contacts the bottom of the inner wall of the conical feeding cylinder, which is located above the rotating cylinder, and a rotating shaft passes through the interior of the conical feeding cylinder via a movable hole.

[0014] Furthermore, the interior of the conical connecting block is movably connected to the top of the center of the conical feeding cylinder via a conical groove, the outer wall of the dispersing plate is movably connected to the interior of the conical feeding cylinder, and the spreading disc is located below the rotating cylinder.

[0015] The beneficial effects of this utility model are:

[0016] 1. This eddy current classifier for limestone powder preparation, through the setting of the eddy current classifier structure, feeds the limestone powder to be classified from the feed pipe into the dispersing plate inside the conical feed cylinder. At the same time, the drive motor is started, and the drive motor drives the anti-blocking structure and the rotating cylinder to rotate through the rotating shaft. The limestone powder on the dispersing plate enters the interior of the conical feed cylinder through the second feed hole. Then, the push plate follows the rotation of the dispersing plate, and the limestone powder inside the conical feed cylinder enters the interior of the rotating cylinder through the first feed hole. In this way, the limestone powder reduces the feed amount, can slide down smoothly, prevents accumulation and blockage, ensures the classification efficiency, ensures smooth and stable feeding, and ensures the continuous and efficient operation of the classifier.

[0017] 2. This vortex classifier for limestone powder preparation uses a conical feed cylinder. The top outer wall of the conical feed cylinder is installed above the outer shell near the connecting pipe. In this way, the limestone powder is carried into the classification area inside the outer shell by the vortex air input through the vortex air inlet pipe. Then, the fine powder, under the combined action of centrifugal force and airflow generated when the drum rotates, passes through the discharge hole opened on the outer wall of the drum and enters the connecting pipe, and is then collected by the fine powder discharge pipe. The heavier coarse powder, under the action of centrifugal force, falls into the coarse powder discharge pipe at the bottom of the outer shell and is finally discharged and collected through the coarse powder discharge pipe. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0019] Figure 1 This is a schematic diagram of the structure of this utility model;

[0020] Figure 2 This is a partial cross-sectional view of the structure of this utility model;

[0021] Figure 3 This is a schematic diagram of the material feeding structure of this utility model;

[0022] Figure 4 This is a cross-sectional view of the material cutting structure of this utility model;

[0023] Figure 5 This utility model Figure 4 Enlarged schematic diagram of the structure at point A in the middle.

[0024] Explanation of reference numerals in the attached drawings: 1. Outer shell; 2. Feed pipe; 3. Connecting pipe; 4. Fine material outlet pipe; 5. Feeding structure; 51. Conical feeding cylinder; 52. Feeding hole one; 53. Movable hole; 6. Vortex powder classifier structure; 61. Drive motor; 62. Rotating shaft; 63. Spreading disc; 64. Rotating drum; 65. Discharge hole one; 66. Discharge hole two; 67. Anti-clogging structure; 671. Conical connecting block; 672. Conical groove; 673. Dispersion plate; 674. Discharge hole two; 675. Push plate; 7. Vortex air inlet pipe; 8. Coarse powder outlet pipe. Detailed Implementation

[0025] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0026] Please see Figure 1-5 A limestone powder preparation vortex classifier includes a shell 1, a feed pipe 2 fixedly connected to the top of the shell 1, a plurality of connecting pipes 3 arranged in a ring fixedly connected to the outer wall of the shell 1, a fine material outlet pipe 4 fixedly connected to one end of the connecting pipes 3, a feeding structure 5 provided inside the shell 1, a vortex classifier structure 6 provided inside the shell 1, a vortex air inlet pipe 7 fixedly connected to the outer wall of the shell 1, and a coarse powder outlet pipe 8 fixedly connected to the bottom of the shell 1.

[0027] The feeding structure 5 is used to partially feed limestone powder, and the vortex powder classifier 6 is used to classify the limestone powder after it enters the outer shell 1. By adopting the above technical solution, there are four fine material outlet pipes 4, and the four fine material outlet pipes 5 are located on the upper part of the outer wall of the outer shell 1. Moreover, one end of the connecting pipe 3 connected to the fine material outlet pipe 4 is inclined and connected to the inside of the outer shell 1, which facilitates the rapid collection of fine powder.

[0028] Reference Figure 2-5 As shown, the feeding structure 5 includes a conical feeding cylinder 51, a feeding hole 52, and a movable hole 53. The outer wall of the conical feeding cylinder 51 is fixedly installed on the inner wall of the outer shell 1. The bottom of the inner wall of the conical feeding cylinder 51 is provided with symmetrical feeding holes 52, and the center of the bottom end of the conical feeding cylinder 51 is provided with a movable hole 53. With the setting of the conical feeding cylinder 51, the top outer wall of the conical feeding cylinder 51 is installed above the outer shell 1 near the connecting pipe 3. In this way, the limestone powder is carried into the powder selection area inside the outer shell 1 by the vortex air input by the vortex air inlet pipe 7. Then, the fine powder is driven by the centrifugal force and airflow generated when the rotating drum 64 rotates, and passes through the discharge hole 65 opened on the outer wall of the rotating drum 64 into the connecting pipe 3, and is then collected by the fine powder discharge pipe 4. The heavier coarse powder falls into the coarse powder discharge pipe 8 at the bottom of the outer shell 1 under the action of centrifugal force, and is finally discharged and collected through the coarse powder discharge pipe 8.

[0029] Reference Figure 2-4As shown, the eddy current powder separation structure 6 includes a drive motor 61, a rotating shaft 62, a feeding disc 63, a rotating drum 64, a first discharge hole 65, a second discharge hole 66, and an anti-clogging structure 67. The drive motor 61 is fixedly installed at the top of the outer shell 1. The rotating shaft 62 is fixedly connected inside the drive motor 61. The feeding disc 63 is fixedly connected to the bottom end of the rotating shaft 62. The rotating drum 64 is fixedly connected to the outer wall of the rotating shaft 62. Several first discharge holes 65 are arranged in a ring on the outer wall of the rotating drum 64. Several second discharge holes 66 are arranged in a ring at the bottom end of the rotating drum 64. An anti-clogging structure 67 is provided on the outer wall of the rotating shaft 62 above the rotating drum 64. By adopting the above technical solution, the feeding disc 63 is cone-shaped. In this way, the limestone powder falling on the feeding disc 63 is dispersed and thrown into the outer shell 1 under the action of centrifugal force. The heavier coarse powder falls into the coarse powder discharge pipe 8 at the bottom end of the outer shell 1 and is discharged from the coarse powder discharge pipe 8.

[0030] It should be noted that the drive motor 61 is a servo motor, and its control terminal is controlled by an external power supply control device through a wiring harness.

[0031] The anti-clogging structure 67 is used to ensure the smooth discharge of limestone powder inside the feeding structure 5.

[0032] Reference Figure 2 , 4 As shown in Figure 5, the anti-clogging structure 67 includes a conical connecting block 671, a conical groove 672, a dispersing plate 673, a second discharge hole 674, and a pusher plate 675. The top of the conical connecting block 671 is fixedly connected to the outer wall of the rotating shaft 62. The bottom of the conical connecting block 671 has a conical groove 672. The bottom of the conical connecting block 671 is fixedly connected to the dispersing plate 673. The outer wall of the dispersing plate 673 has several discharge holes 674 arranged in a ring. The lower surface of the dispersing plate 673 is fixedly connected to several pushers 675 arranged in a ring. Through the setting of the vortex powder classifier 6, the limestone powder to be selected is fed from the feed... Pipe 2 is fed into the dispersing plate 673 inside the conical feeding cylinder 51. At the same time, the drive motor 61 is started. The drive motor 61 drives the anti-blocking structure 67 and the rotating cylinder 64 to rotate through the rotating shaft 62. This causes the limestone powder on the dispersing plate 673 to enter the interior of the conical feeding cylinder 51 through the second feeding hole 674. Then, the push plate 675 follows the rotation of the dispersing plate 673, causing the limestone powder inside the conical feeding cylinder 51 to enter the interior of the rotating cylinder 64 through the first feeding hole 52. In this way, the amount of limestone powder fed is reduced, and it can slide down smoothly, preventing accumulation and blockage, ensuring the powder selection efficiency, ensuring smooth and stable feeding, and ensuring the continuous and efficient operation of the powder classifier.

[0033] Reference Figure 2-5 As shown, the bottom end of the push plate 675 is in contact with the bottom of the inner wall of the conical feed cylinder 51. The conical feed cylinder 51 is located above the rotating cylinder 64, and the rotating shaft 62 passes through the movable hole 53 inside the conical feed cylinder 51.

[0034] Reference Figure 1-5 As shown, the interior of the conical connecting block 671 is movably connected to the top of the center of the conical feeding cylinder 51 through the conical groove 672, the outer wall of the dispersing plate 673 is movably connected to the interior of the conical feeding cylinder 51, and the spreading disc 63 is located below the rotating cylinder 64.

[0035] In use, the limestone powder to be selected is fed from the feed pipe 2 onto the dispersing plate 673 inside the conical feeding cylinder 51. Simultaneously, the drive motor 61 is started. The drive motor 61, via the rotating shaft 62, drives the anti-blocking structure 67 and the rotating cylinder 64 to rotate, causing the limestone powder on the dispersing plate 673 to enter the interior of the conical feeding cylinder 51 through the second feeding hole 674. Then, following the rotation of the dispersing plate 673, the push plate 675, through the first feeding hole 52, allows the limestone powder inside the conical feeding cylinder 51 to enter the interior of the rotating cylinder 64. The limestone powder can slide smoothly, preventing accumulation and blockage, ensuring smooth and stable feeding, and guaranteeing the continuous and efficient operation of the air classifier. At the same time, under the action of the vortex air input by the vortex air inlet pipe 7, the limestone powder is carried into the upper area inside the outer shell 1. Under the combined action of the centrifugal force and airflow generated by the rotating drum 64, the fine powder passes through the discharge hole 65 opened on the outer wall of the rotating drum 64 and enters the connecting pipe 3, and is then collected by the fine powder discharge pipe 4. The coarse powder moves towards the inner wall of the outer shell 1 under the action of centrifugal force and is finally discharged and collected from the coarse powder discharge pipe 8.

[0036] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A vortex classifier for limestone powder preparation, comprising a shell (1), characterized in that: The top of the outer shell (1) is fixedly connected to a feed pipe (2), and the outer wall of the outer shell (1) is fixedly connected to a plurality of connecting pipes (3) arranged in a ring. One end of the connecting pipe (3) is fixedly connected to a fine material outlet pipe (4). The inside of the outer shell (1) is provided with a feeding structure (5). The inside of the outer shell (1) is provided with a vortex powder classifier structure (6). The outer wall of the outer shell (1) is fixedly connected to a vortex air inlet pipe (7). The bottom of the outer shell (1) is fixedly connected to a coarse powder outlet pipe (8). The feeding structure (5) is used to partially feed limestone powder, and the eddy current powder separation structure (6) is used to select limestone powder after it enters the shell (1).

2. The eddy current classifier for limestone powder preparation according to claim 1, characterized in that: The feeding structure (5) includes a conical feeding cylinder (51), a feeding hole (52) and a movable hole (53). The outer wall of the conical feeding cylinder (51) is fixedly installed on the inner wall of the outer shell (1). A symmetrical feeding hole (52) is opened at the bottom of the inner wall of the conical feeding cylinder (51). A movable hole (53) is opened at the center of the bottom end of the conical feeding cylinder (51).

3. The eddy current classifier for limestone powder preparation according to claim 2, characterized in that: The eddy current powder separation structure (6) includes a drive motor (61), a rotating shaft (62), a feeding disc (63), a rotating drum (64), a discharge hole one (65), a discharge hole two (66), and an anti-blocking structure (67). The drive motor (61) is fixedly installed at the top of the outer shell (1). The rotating shaft (62) is fixedly connected inside the drive motor (61). The feeding disc (63) is fixedly connected to the bottom end of the rotating shaft (62). The rotating drum (64) is fixedly connected to the outer wall of the rotating shaft (62). Several discharge holes one (65) are arranged in a ring on the outer wall of the rotating drum (64). Several discharge holes two (66) are arranged in a ring at the bottom end of the rotating drum (64). An anti-blocking structure (67) is provided on the outer wall of the rotating shaft (62) above the rotating drum (64). The anti-blocking structure (67) is used to ensure the smooth discharge of limestone powder inside the material discharge structure (5).

4. The eddy current classifier for limestone powder preparation according to claim 3, characterized in that: The anti-clogging structure (67) includes a conical connecting block (671), a conical groove (672), a dispersing plate (673), a second discharge hole (674), and a pusher plate (675). The top of the conical connecting block (671) is fixedly connected to the outer wall of the rotating shaft (62). The bottom of the conical connecting block (671) has a conical groove (672). The bottom of the conical connecting block (671) is fixedly connected to the dispersing plate (673). The outer wall of the dispersing plate (673) has several second discharge holes (674) arranged in a ring. The lower surface of the dispersing plate (673) is fixedly connected to several pushers (675) arranged in a ring.

5. The eddy current classifier for limestone powder preparation according to claim 4, characterized in that: The bottom end of the push plate (675) is in contact with the bottom of the inner wall of the conical feed cylinder (51). The conical feed cylinder (51) is located above the rotating cylinder (64). The rotating shaft (62) passes through the interior of the conical feed cylinder (51) through the movable hole (53).

6. The eddy current classifier for limestone powder preparation according to claim 5, characterized in that: The interior of the conical connecting block (671) is movably connected to the top of the center of the conical feeding cylinder (51) through the conical groove (672), the outer wall of the dispersing plate (673) is movably connected to the interior of the conical feeding cylinder (51), and the spreading disc (63) is located below the rotating cylinder (64).

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