A powder classifier with a feeding control mechanism

Abstract

The present invention discloses a powder classifier with a feeding control mechanism, comprising a powder classifier body, a feeding pipe is arranged above the powder classifier body, a feeding pipe is arranged above the feeding pipe, loading pipes are arranged on both sides of the feeding pipe, a feeding control mechanism is arranged inside the feeding pipe, and a bulking mechanism is arranged inside the powder classifier body, and stage loading is performed through the cooperation of the loading pipe and the feeding pipe, a second motor drives a rotating rod to rotate so that the control slider slides up and down under the cooperation of a limit frame, pulls the loading pipe, and slowly lowers the loading pipe, and the unloading claws and the dispersion blades rotate with the rotating rod to scatter the powder and feed it evenly, thereby achieving the purpose of controlling the feeding speed of the powder, and fully and completely drying and dispersing it through the heated drying pipe, thereby avoiding drying and agglomeration of the powder, solving the problem that the prior art lacks the control of the feeding of the feeding pipe, resulting in too much feeding, insufficient drying and dehumidification, and incomplete dispersion of the raw materials, and the feeding of the powder classifier can be controlled.

Description

Technical Field

[0001] The invention belongs to the technical field of powder classifiers, and in particular relates to a powder classifier with a feed control mechanism. Background Art

[0002] Powder concentrators are widely used for powder separation in the fields of building materials, food, medical treatment, metallurgy, chemical industry, etc. The cage rotor composed of multiple blades is its core component. The fan forms a negative pressure in the powder concentrator chamber. After the air enters the powder concentrator from the air inlet, it forms a rotating airflow driven by the high-speed cage rotor. The fine particles entering the powder concentrator from the feed inlet are subjected to airflow drag greater than the centrifugal force, so they pass through the rotor blades and move toward the center of the rotor. The suction force of the fan is used to drop the fine particles into the fine powder collector, while the coarse particles are subjected to a greater centrifugal force and move toward the outer side wall. Under the action of gravity, they fall into the coarse powder collector along the side wall, thus realizing the separation of coarse and fine particles.

[0003] However, during the feeding process of the powder classifier, because the raw material powder may contain a certain amount of moisture, it is easy to agglomerate and clumping, blocking the feed port of the powder classifier and the feed port of the powder classifier inside the powder classifier. In the prior art, a Chinese patent document with publication number CN111992504A and publication date of November 27, 2020 was proposed, which adopts the method of adding a dehumidification mechanism to the feeding pipe for processing, but there will be a lack of control over the feeding of the feeding pipe, resulting in too much feeding, insufficient drying and dehumidification, and the raw materials are not completely dispersed.

[0004] Therefore, we need a powder classifier with a feed control mechanism to solve the problem that the existing technology lacks control over the feed of the feed pipe, resulting in too much feed, insufficient drying and dehumidification, and incomplete dispersion of the raw materials. The feed of the powder classifier can be controlled. Summary of the Invention

[0005] The purpose of this application is to solve the problem in the prior art that the feed of the feed pipe lacks control, resulting in too much feed, insufficient drying and dehumidification, and incomplete dispersion of the raw materials. In order to solve the above problem, this application provides a powder classifier with a feed control mechanism, which can control the feed of the powder classifier.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solution: it includes a powder classifier body, a feeding pipe is arranged above the powder classifier body, a feeding pipe is arranged above the feeding pipe, loading pipes are arranged on both sides of the feeding pipe, a feeding control mechanism is arranged inside the feeding pipe, a bulking mechanism is arranged inside the powder classifier body, the middle part of the lower surface of the loading pipe is rotatably connected to the side wall of the feeding pipe, and the side wall of the feeding pipe is provided with a through groove adapted to the loading pipe; the feeding control mechanism includes a second motor, a rotating rod and a control slider, and the middle part of the rotating rod is provided with a thread adapted to the control slider.

[0007] Preferably, the second motor is fixedly mounted on the top of the feed pipe, the rotating rod is rotatably mounted inside the feed pipe, and the output shaft of the second motor is fixedly connected to the top of the rotating rod.

[0008] Preferably, the feed control mechanism also includes a rotating rod mounting frame, which is fixedly mounted on the bottom of the feed pipe. A limiting frame is provided above the rotating rod mounting frame, and the rotating rod mounting frame and the limiting frame are fixedly mounted on the side wall of the feed pipe.

[0009] Preferably, the inner wall of the rotating rod mounting bracket and the limiting bracket are rotatably connected to the outer surface of the rotating rod, and a control slider is slidably mounted on the outer surface of the limiting bracket.

[0010] Preferably, both sides of the control slider are hinged to the lower end of the feeding tube respectively, and the middle inner wall of the control slider is threadedly connected to the middle outer surface of the rotating rod.

[0011] Preferably, a feeding claw is fixedly mounted on the upper end of the rotating rod, and a dispersion blade is fixedly mounted on the lower end of the rotating rod.

[0012] Preferably, the bulking mechanism includes a motor three and a rotating shaft, the motor three is fixedly mounted on the bottom lower surface of the powder classifier body, the rotating shaft is rotatably mounted in the middle of the powder classifier body, the output shaft of the motor three is fixedly connected to the lower end of the rotating shaft, and the outer surface of the rotating shaft is fixedly mounted with stirring blades.

[0013] Preferably, a motor 1 is fixedly installed on the right end of the feeding tube, an auger is rotatably installed inside the feeding tube, the output shaft of the motor 1 is fixedly connected to one end of the rotating shaft of the auger, a heating and drying tube is fixedly installed on the middle part of the outer side of the feeding tube, and a heating tube is arranged inside the heating and drying tube.

[0014] Preferably, a screen is provided inside the powder classifier body, a coarse powder outlet is provided below the left side wall of the powder classifier body, a fan is fixedly installed on one side of the coarse powder outlet, and a fine powder outlet is provided below the right side wall of the powder classifier body.

[0015] Preferably, the upper end of the screen is matched with the discharge port of the feeding pipe, and the lower end of the feeding pipe is connected with the upper inner wall of the feeding pipe.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. The loading is carried out in stages through the cooperation of the loading pipe and the feeding pipe. The second motor drives the rotating rod to rotate so that the control slider slides up and down with the cooperation of the limit frame, pulling the loading pipe to slowly descend. The unloading claws and the dispersing blades rotate with the rotating rod to scatter the powder evenly and feed it, so as to achieve the purpose of controlling the feeding speed of the powder, so that a small amount of powder enters the feeding pipe for feeding, and is fully and completely dried and dispersed in the heating drying pipe to avoid the powder from drying and agglomerating. This solves the problem that the existing technology lacks control over the feeding of the feeding pipe, resulting in too much feeding, insufficient drying and dehumidification, and incomplete dispersion of the raw materials. The feeding of the powder selector can be controlled. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the present invention;

[0019] Figure 2 Schematic diagram of the cross-section of the feed pipe structure of the present invention;

[0020] Figure 3 This is a schematic top view of the cross-section of the powder classifier body structure of the present invention;

[0021] Figure 4 This is a schematic diagram of the powder classifier body structure cross-section viewed from above;

[0022] Figure 5 Schematic diagram of the feed control mechanism of the present invention;

[0023] Figure 6 It is a schematic diagram of the bulk material mechanism of the present invention;

[0024] Figure 7 This is a schematic diagram of the secondary controlled blanking mechanism of the present invention;

[0025] Figure 8 It is an enlarged schematic diagram of point A of the present invention;

[0026] Figure 9 It is an enlarged schematic diagram of point B of the present invention.

[0027] In the figure: 1. Powder classifier body; 11. Screen; 12. Coarse powder outlet; 13. Fan; 14. Fine powder outlet; 2. Feeding pipe; 21. Motor 1; 22. Auger; 3. Heating and drying pipe; 4. Feeding pipe; 5. Loading pipe; 6. Feeding control mechanism; 61. Motor 2; 62. Rotating rod; 63. Rotating rod mounting bracket; 64. Limiting bracket; 65. Control slide; 66. Dispersing blade; 67. Discharging claw; 7. Dispersing mechanism; 71. Motor 3; 72. Rotating shaft; 73. Stirring blade; 8. Secondary control discharging mechanism; 81. Control blade 1; 82. Control blade 2; 83. Anti-accumulation block; 84. Anti-blocking thin rod; 9. Pushing mechanism; 91. Telescopic rod; 92. Pushing blade. DETAILED DESCRIPTION

[0028] In order to clearly and completely describe the objectives and technical solutions of the present invention and make its advantages more clearly understood, the embodiments of the present invention are further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only part of the embodiments of the present invention, not all of them, and are only used to explain the embodiments of the present invention, not to limit the embodiments of the present invention. All other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] Example 1

[0030] See also Figures 1 to 9 The present invention provides a technical solution: it includes a powder classifier body 1, a feeding pipe 2 is provided above the powder classifier body 1, a feeding pipe 4 is provided above the feeding pipe 2, and a loading pipe 5 is provided on both sides of the feeding pipe 4. A feeding control mechanism 6 is provided inside the feeding pipe 4, and a bulk material mechanism 7 is provided inside the powder classifier body 1. The middle part of the lower surface of the loading pipe 5 is rotatably connected to the side wall of the feeding pipe 4, and the side wall of the feeding pipe 4 is provided with a through groove adapted to the loading pipe 5; the feeding control mechanism 6 includes a second motor 61, a rotating rod 62 and a control slider 65. The middle part of the rotating rod 62 is provided with a thread adapted to the control slider 65. The second motor 61 is fixedly installed on the top of the feeding pipe 4, and the rotating rod 62 is rotatably installed inside the feeding pipe 4. The output of the second motor 61 The output shaft is fixedly connected to the top of the rotating rod 62, and the feeding control mechanism 6 also includes a rotating rod mounting frame 63, which is fixedly mounted on the bottom of the feeding pipe 4. A limiting frame 64 is provided above the rotating rod mounting frame 63, and the rotating rod mounting frame 63 and the limiting frame 64 are fixedly mounted on the side wall of the feeding pipe 4. The inner walls of the rotating rod mounting frame 63 and the limiting frame 64 are rotatably connected to the outer surface of the rotating rod 62, and a control slider 65 is slidably mounted on the outer surface of the limiting frame 64. The two sides of the control slider 65 are respectively hinged to the lower end of the feeding pipe 5, and the middle inner wall of the control slider 65 is threadedly connected to the middle outer surface of the rotating rod 62. A blanking claw 67 is fixedly mounted on the upper end of the rotating rod 62, and a dispersion blade 66 is fixedly mounted on the lower end of the rotating rod 62;

[0031] The loading tube 5 cooperates with the feeding tube 4 to load the materials in the interval stage. The feeding tube 2 feeds the powder classifier body 1. The heating and drying tube 3 dries and dehumidifies the raw material powder on the outside of the middle part of the feeding tube 2. The motor 2 61 rotates forward to drive the rotating rod 62 to rotate so that the control slider 65 slides downward with the cooperation of the limit frame 64. The control slider 65 slides to pull the loading tube 5, so that the loading tube 5 filled with raw material powder slowly descends and pours the raw material powder into the feeding tube 4. The unloading claw 67 and the dispersing blade 66 rotate with the rotating rod 62 to stir and scatter the powder, and the feeding is uniform, so as to achieve the purpose of controlling the feeding speed of the powder, so that a small amount of powder enters the feeding tube 2 for rotation and feeding, and is fully and completely dried and dispersed through the heating and drying tube 3 to avoid the powder from drying and agglomerating. This solves the problem that the prior art lacks control over the feeding of the feeding tube, resulting in too much feeding, insufficient drying and dehumidification, and incomplete dispersion of the raw materials. The feeding of the powder classifier can be controlled.

[0032] Example 2

[0033] On the basis of embodiment 1: In order to ensure that the raw material powder in the feeding tube 5 can be slowly and completely dumped into the feeding tube 4, this embodiment adds a pushing mechanism 9, which is arranged on the inner side of the rear end of the feeding tube 5. The pushing mechanism 9 includes a telescopic rod 91 and a pushing blade 92. The telescopic rod 91 is fixedly mounted on the outer side of the rear end of the feeding tube 5, and the pushing blade 92 is slidably mounted on the inner surface of the feeding tube 5. The bottom of the inner surface of the feeding tube 5 is provided with a slide rail adapted to the pushing blade 92. The output end of the telescopic rod 91 passes through the inner wall of the rear end of the feeding tube 5 and is fixed on both sides of the rear side surface of the pushing blade 92.

[0034] When the feeding tube 5 is tilted by the control slider 65, the telescopic rod 91 can control the pushing blade 92 to slide on the inside of the feeding tube 5 to push the raw material powder inside the feeding tube 5 to be slowly discharged, further solving the problem that the existing technology lacks control over the feeding of the feeding tube, resulting in too much feeding, insufficient drying and dehumidification, and incomplete dispersion of the raw materials. The feeding of the powder selector can be controlled.

[0035] Example 3

[0036] On the basis of the second embodiment: in order to ensure the speed of the discharge port of the feeding pipe 2, the present embodiment adds a secondary control discharge mechanism 8, which is arranged below the discharge port of the feeding pipe 2. The secondary control discharge mechanism 8 includes a control blade 1 81, which is fixedly mounted on the lower end of the inner side wall of the discharge port of the feeding pipe 2. A control blade 2 82 is rotatably mounted on the surface of the control blade 1 81, an anti-accumulation block 83 is fixedly mounted on the upper surface of the control blade 2 82, and an anti-blocking rod 84 is arranged above the control blade 2 82. The control blade 2 82 and the anti-blocking rod 84 are respectively fixedly connected to the outer surface of the rotating shaft 72;

[0037] The surface of the control blade 81 is provided with twelve groups of through grooves, and the control blade 2 82 is provided with six groups of blocking blades adapted to the through grooves. The rotating shaft 72 drives the control blade 2 82 to rotate to intermittently block the control blade 1 81, so that the feeding speed of the discharge port of the feeding pipe 2 to the inside of the screen 11 is slow and the feeding is uniform. The anti-accumulation block 83 is an inclined cross-section to prevent the raw material powder from accumulating on the control blade 2 82. The anti-blocking thin rod 84 rotates with the rotating shaft 72 to disperse the raw materials at the discharge port of the feeding pipe 2, further solving the problem that the existing technology lacks control over the feeding of the feeding pipe, resulting in too much feeding, insufficient drying and dehumidification, and the raw materials are not completely dispersed, and the feeding of the powder selector can be controlled.

[0038] Example 4

[0039] On the basis of embodiment 1: in order to, the bulking mechanism 7 includes a motor 3 71 and a rotating shaft 72, the motor 3 71 is fixedly mounted on the bottom lower surface of the powder classifier body 1, the rotating shaft 72 is rotatably mounted in the middle of the powder classifier body 1, the output shaft of the motor 3 71 is fixedly connected to the lower end of the rotating shaft 72, and the outer surface of the rotating shaft 72 is fixedly mounted with a stirring blade 73;

[0040] Motor three 71 can drive the rotating shaft 72 to rotate, and the rotating shaft 72 drives the stirring blade 73 to rotate, so as to evenly stir and disperse the powder entering the screen 11 so that the powder can be fully screened, further solving the problem that the existing technology lacks control over the feed of the feed pipe, resulting in too much feed, insufficient drying and dehumidification, and incomplete dispersion of the raw materials. The feed of the powder selector can be controlled.

[0041] Example 5

[0042] On the basis of Example 1: a motor 21 is fixedly installed on the right end of the feeding tube 2, an auger 22 is rotatably installed inside the feeding tube 2, the output shaft of the motor 21 is fixedly connected to one end of the rotating shaft of the auger 22, a heating and drying tube 3 is fixedly installed on the middle part of the outer side of the feeding tube 2, a heating tube is provided inside the heating and drying tube 3, a screen 11 is provided inside the powder classifier body 1, a coarse powder outlet 12 is provided at the lower left side wall of the powder classifier body 1, a fan 13 is fixedly installed on one side of the coarse powder outlet 12, a fine powder outlet 14 is provided at the lower right side wall of the powder classifier body 1, the upper end of the screen 11 is adapted to the discharge port of the feeding tube 2, and the lower port of the feed pipe 4 is connected to the upper inner wall of the feeding tube 2;

[0043] Motor 1 21 can drive the auger 22 to rotate, so that the raw material powder entering the feeding pipe 2 from the feeding pipe 4 is pushed into the screen 11 evenly and in small amounts, and the heating drying pipe 3 fully dries the raw material. The screen 11 forms an internal screening chamber, and the fan 13 uses wind power to adsorb the raw material powder, so that the fine powder is discharged through the coarse powder outlet 12, and the coarse powder is left and discharged through the fine powder outlet 14, further solving the problem that the existing technology lacks control over the feeding of the feeding pipe, resulting in too much feeding, insufficient drying and dehumidification, and the raw materials are not completely dispersed. The feeding of the powder selector can be controlled.

[0044] Example 6

[0045] Based on the fifth embodiment, a method for using a powder classifier with a feed control mechanism is proposed, comprising the following steps:

[0046] Step 1: Start motor 1 21, motor 3 71 and fan 13 to pour raw material powder into the upper feeding pipe 5;

[0047] Step 2: Start the second motor 61. The second motor 61 rotates forward to drive the rotating rod 62 to rotate, so that the control slider 65 slides with the cooperation of the limit frame 64. The control slider 65 slides to pull the feeding tube 5, so that the feeding tube 5 filled with raw material powder slowly descends and pours the raw material powder into the feeding tube 4. The telescopic rod 91 can control the pushing blade 92 to slide inside the feeding tube 5 to push the raw material powder inside the feeding tube 5 to be slowly discharged. The discharge claw 67 and the dispersion blade 66 rotate with the rotating rod 62 to stir the powder so that the powder is scattered and the feeding is uniform.

[0048] In step three, the motor 1 21 can drive the auger 22 to rotate, so that the raw material powder entering the feeding pipe 2 from the feeding pipe 4 is evenly pushed into the screen 11 in a small amount, and the drying tube 3 is heated to fully dry the raw material. The motor 3 71 can drive the rotating shaft 72 to rotate, and the rotating shaft 72 drives the control blade 2 82 to rotate to intermittently block the control blade 1 81, so that the feeding speed of the feeding pipe 2 outlet to the inside of the screen 11 is slow and the feeding is uniform. The anti-blocking thin rod 84 rotates with the rotating shaft 72 to disperse the raw material at the feeding pipe 2 outlet. The rotating shaft 72 drives the stirring blade 73 to rotate, and the small amount of powder entering the screen 11 is evenly stirred and dispersed so that the powder can be fully screened. The screen 11 forms an inner screening chamber, and the fan 13 uses wind power to adsorb the raw material powder, so that the fine powder is discharged through the fine powder outlet 14, and the coarse powder is left and discharged through the coarse powder outlet 12;

[0049] Step 4: Regulate the motor 2 61 to rotate in the reverse direction to drive the rotating rod 62 to rotate in the reverse direction so that the control slider 65 slides upward in cooperation with the limit frame 64. The control slider 65 slides and resets, so that the feeding tube 5 filled with raw material powder is slowly leveled, and the raw material powder is repeatedly poured into the upper feeding tube 5.

[0050] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A powder classifier with a feed control mechanism, comprising a powder classifier body (1), characterized in that: A feeding pipe (2) is provided above the powder classifier body (1), a feed pipe (4) is provided above the feed pipe (2), loading pipes (5) are provided on both sides of the feed pipe (4), a feed control mechanism (6) is provided inside the feed pipe (4), a bulking mechanism (7) is provided inside the powder classifier body (1), and a screen (11) is provided inside the powder classifier body (1); The middle portion of the lower surface of the loading tube (5) is rotatably connected to the side wall of the feeding tube (4), and the side wall of the feeding tube (4) is provided with a through groove adapted to the loading tube (5); The control feeding mechanism (6) includes a second motor (61), a rotating rod (62) and a control slide (65), wherein a thread matching the control slide (65) is provided at the middle of the rotating rod (62); the control feeding mechanism (6) also includes a rotating rod mounting frame (63), wherein the rotating rod mounting frame (63) is fixedly mounted on the bottom of the feed pipe (4), and a limiting frame (64) is provided above the rotating rod mounting frame (63), wherein the rotating rod mounting frame (63) and the limiting frame (64) are fixedly mounted on the side of the feed pipe (4). The rotating rod mounting frame (63) and the inner wall of the limiting frame (64) are rotatably connected to the outer surface of the rotating rod (62), and the outer surface of the limiting frame (64) is slidably mounted with a control slider (65); both sides of the control slider (65) are respectively hinged to the lower end of the feeding tube (5), and the middle inner wall of the control slider (65) is threadedly connected to the middle outer surface of the rotating rod (62); the upper end of the rotating rod (62) is fixedly mounted with a discharge claw (67), and the lower end of the rotating rod (62) is fixedly mounted with a dispersion blade (66); The bulking mechanism (7) includes a third motor (71) and a rotating shaft (72), wherein the third motor (71) is fixedly mounted on the bottom lower surface of the powder classifier body (1), and the rotating shaft (72) is rotatably mounted on the middle part of the powder classifier body (1). The output shaft of the third motor (71) is fixedly connected to the lower end of the rotating shaft (72), and a stirring blade (73) is fixedly mounted on the outer surface of the rotating shaft (72); The invention also includes a secondary control feeding mechanism (8), which is arranged below the discharge port of the feeding pipe (2). The secondary control feeding mechanism (8) includes a control blade 1 (81), which is fixedly mounted on the lower end of the inner wall of the discharge port of the feeding pipe (2). A control blade 2 (82) is rotatably mounted on the surface of the control blade 1 (81), an anti-accumulation block (83) is fixedly mounted on the upper surface of the control blade 2 (82), and an anti-blocking rod (84) is arranged above the control blade 2 (82). The control blade 2 (82) and the anti-blocking rod (84) are respectively fixedly connected to the outer surface of the rotating shaft (72); the surface of the control blade 1 (81) is fixedly mounted on the lower end of the inner wall of the discharge port of the feeding pipe (2). Twelve groups of through slots are provided, and the control blade 2 (82) is provided with six groups of blocking blades adapted to the through slots. The rotating shaft (72) drives the control blade 2 (82) to rotate to intermittently block the control blade 1 (81), so that the feeding speed of the discharge port of the feeding pipe (2) to the inside of the screen (11) is slow and the feeding is uniform. The anti-accumulation block (83) is an inclined cross-section to prevent the raw material powder from accumulating on the control blade 2 (82). The anti-blocking thin rod (84) rotates with the rotating shaft (72) to disperse the raw material at the discharge port of the feeding pipe (2). The rotating shaft (72) drives the stirring blade (73) to rotate, and evenly stirs and disperses a small amount of powder entering the screen (11) so that the powder is fully screened.

2. A powder classifier with a feed control mechanism according to claim 1, characterized in that: The second motor (61) is fixedly mounted on the top of the feed pipe (4), the rotating rod (62) is rotatably mounted inside the feed pipe (4), and the output shaft of the second motor (61) is fixedly connected to the top of the rotating rod (62).

3. The powder classifier with a feed control mechanism according to claim 1, characterized in that: A motor 1 (21) is fixedly mounted on the right end of the feeding tube (2), an auger (22) is rotatably mounted inside the feeding tube (2), an output shaft of the motor 1 (21) is fixedly connected to one end of the rotating shaft of the auger (22), a heating and drying tube (3) is fixedly mounted on the middle portion of the outer side of the feeding tube (2), and a heating tube is provided inside the heating and drying tube (3).

4. The powder classifier with a feed control mechanism according to claim 1, characterized in that: A coarse powder outlet (12) is provided below the left side wall of the powder classifier body (1), a fan (13) is fixedly installed on one side of the coarse powder outlet (12), and a fine powder outlet (14) is provided below the right side wall of the powder classifier body (1).

5. The powder classifier with a feed control mechanism according to claim 4, characterized in that: The upper end of the screen (11) is adapted to the discharge port of the feeding pipe (2), and the lower end of the feeding pipe (4) is connected to the upper inner wall of the feeding pipe (2).

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