Screening device for superfine composite mineral admixture production

Abstract

The utility model discloses a screening device for superfine composite mineral admixture production, and relates to the technical field of composite minerals. The screening device comprises a screening box body and a feeding port, the outer surface of the screening box body is fixedly communicated with a first collecting box, a second collecting box is slidably connected into the screening box body, a first screen is slidably connected into the screening box body, and a plurality of evenly-distributed pulling ropes are fixedly connected to the outer surface of the first screen. The end, away from the first screen, of the pulling rope is fixedly connected with an inclined screen, the interior of the screening box is slidably connected with the outer surface of the inclined screen, the outer surface of the first screen is fixedly connected with a U-shaped rack plate, the bottom end of the screening box is fixedly connected with a first motor, and an output shaft of the first motor is fixedly connected with a gear. The utility model solves the problems that the screening net is possibly blocked when different screening nets are generally used for grading screening, and the feeding hole of the device is likely to be blocked when the size of the feeding hole of the drying box is fixed.

Description

Technical Field

[0001] The utility model relates to the technical field of composite minerals, in particular to a screening device used for the production of ultrafine composite mineral admixtures. Background Art

[0002] With the development of the building materials industry, ultrafine composite mineral admixtures, as a high-performance concrete admixture, play an important role in improving concrete performance and reducing production costs. In the production process of ultrafine composite mineral admixtures, screening devices are indispensable key equipment, which is directly related to product quality and production efficiency.

[0003] Existing screening devices usually use different screens for graded screening when in use. Since the amount of ultrafine composite mineral admixtures during screening is relatively large, the screening mesh may be blocked, resulting in poor screening effect. At the same time, when the existing screening device is performing feeding operation, the size of the drying box feed port is fixed, which may cause the device feed port to be easily blocked, thereby possibly resulting in low screening efficiency of the device. Utility Model Content

[0004] In order to solve the problems that the screen mesh may be blocked when different screen meshes are usually used for graded screening and the feed port of the drying box may be easily blocked due to the fixed size of the feed port; the purpose of the utility model is to provide a screening device for the production of ultrafine composite mineral admixtures.

[0005] The cam is connected to the second collecting box by sliding connection to the first collecting box, and the cam is connected to the first collecting box by sliding connection to the second collecting box. The cam is fixedly provided with a first spring, and one end of the first spring is fixedly connected to the outer surface of the long plate inside the cam, and one end of the first spring is fixedly connected to the outer surface of the long plate inside the cam, and one end of the first spring is fixedly connected to the outer surface of the long plate inside the cam, and one end of the gear is meshed with the rack of the U-shaped rack plate. The inclined screen is away from the first collecting box, and the screening box is provided with a second slide groove inside the second slide groove, and the inside of the second slide groove is fixedly connected to the second spring, and one end of the second spring is fixedly connected to the outer surface of the slide groove, and the internal opening of the second collecting box corresponds to the first screen opening, and the internal opening of the first collecting box corresponds to the inclined end of the inclined screen. The bottom end of the screening box is fixedly connected to a plurality of evenly distributed support legs.

[0006] Preferably, the feed anti-blocking component includes a feed wheel, a second motor is fixedly connected to the top of the screening box, one end of the output shaft of the second motor is fixedly connected to the first transmission wheel, the outer surface of the first transmission wheel is transmission-connected to the transmission belt, a fixed rod is rotatably connected inside the feed port, the outer surface of the fixed rod is fixedly connected to the middle part of the feed wheel, the outer surface of the fixed rod is fixedly connected to the second transmission wheel, and the outer surface of the second transmission wheel is transmission-connected to the outer surface of the transmission belt.

[0007] Compared with the prior art, the beneficial effects of the present invention are:

[0008] 1. By setting the linkage of the pulling rope, the U-shaped rack plate and the first motor, the inclined screen can be made to slide up and down inside the screening box to form vibration under the action of the pulling rope, thereby improving the screening rate of the device and effectively preventing the screen from being blocked.

[0009] 2. By setting up the feed anti-blocking component, the ultrafine composite mineral admixture is rotated and transported into the screening box by the feed wheel when entering the gap of the feed wheel, preventing the internal blockage of the feed port from affecting the screening efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0011] Figure 1 This is a schematic diagram of the overall structure proposed by the utility model;

[0012] Figure 2 for Figure 1 A schematic diagram of the structure at center A;

[0013] Figure 3 A schematic diagram of the first angle structure of the utility model;

[0014] Figure 4 for Figure 3 A magnified schematic diagram of the structure at point B in the middle;

[0015] Figure 5 for Figure 3 A magnified schematic diagram of the structure at point C in the middle;

[0016] Figure 6 This is a schematic diagram of the second angle structure proposed by the utility model;

[0017] Figure 7 for Figure 6 Enlarged schematic diagram of the structure at point D in the middle.

[0018] In the figure: 1. Screening box; 2. Feed inlet; 3. Second motor; 4. First collecting box; 5. Second collecting box; 6. First screen; 7. Support leg; 8. U-shaped rack plate; 9. Gear; 10. First motor; 11. Feed wheel; 12. Fixed rod; 13. Pull rope; 14. Inclined screen; 15. Long strip; 16. First chute; 17. First spring; 18. Second chute; 19. Slider; 20. Second spring; 21. Second transmission wheel; 22. Transmission belt; 23. First transmission wheel. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0020] Example: Figure 1-7 As shown, the utility model provides a screening device for the production of ultrafine composite mineral admixtures, including a screening box body 1 and a feed port 2, the outer surface of the screening box body 1 is fixedly connected to a first collecting box 4, the interior of the screening box body 1 is slidably connected to a second collecting box 5, the interior of the screening box body 1 is slidably connected to a first screen 6, the outer surface of the first screen 6 is fixedly connected to a plurality of evenly distributed pulling ropes 13, the end of the pulling rope 13 away from the first screen 6 is fixedly connected to an inclined screen 14, the interior of the screening box body 1 is slidably connected to the outer surface of the inclined screen 14, the outer surface of the first screen 6 is fixedly connected to a U-shaped rack plate 8, the bottom end of the screening box body 1 is fixedly connected to a first motor 10, the output shaft of the first motor 10 is fixedly connected to a gear 9, the top of the screening box body 1 is connected to the bottom of the feed port 2 The ends are fixedly connected, and a feed anti-blocking component is provided between the top of the screening box 1 and the inside of the feed port 2. By arranging the linkage of the pulling rope 13, the U-shaped rack plate 8 and the first motor 10, the inclined screen 14 can be made to slide back and forth up and down inside the screening box 1 to form vibration under the action of the pulling rope 13, thereby improving the screening rate of the device and effectively preventing the screen from being blocked. The number of pulling ropes 13 is multiple and they are evenly distributed in a rectangular array on the outer surface of the first screen 6. The lengths of the pulling ropes 13 are different. The outer surface of the gear 9 is engaged with the rack of the U-shaped rack plate 8, so that the rotation of the gear 9 can drive the U-shaped rack plate 8 to move. The bottom end of the screening box 1 is fixedly connected to a plurality of evenly distributed support legs 7, so that the device can be stably placed on the ground.

[0021] One end of the inclined screen 14 close to the first collecting box 4 is fixedly connected to a long plate 15, and a first chute 16 is opened on the inside of the screening box body 1. The inside of the first chute 16 is slidably connected to the outer surface of the long plate 15, and a first spring 17 is fixedly connected to the inside of the first chute 16. The end of the first spring 17 away from the first chute 16 is fixedly connected to the outer surface of the long plate 15, so that one end of the inclined screen 14 slides at the internal opening of the first collecting box 4 fixedly connected to the inside of the screening box body 1.

[0022] The end of the inclined screen 14 away from the first collecting box 4 is fixedly connected to a slider 19, and a second chute 18 is provided on the inside of the screening box 1. The inside of the second chute 18 is slidably connected to the slider 19, and a second spring 20 is fixedly connected to the inside of the second chute 18. The end of the second spring 20 away from the second chute 18 is fixedly connected to the outer surface of the slider 19, so that one end of the inclined screen 14 slides on the inside of the screening box 1.

[0023] The internal opening of the second collecting box 5 corresponds to the opening of the first screen 6, the opening of the inclined screen 14 corresponds to the opening of the first screen 6, and the internal opening of the first collecting box 4 corresponds to the inclined end of the inclined screen 14, so that the impurities screened by the inclined screen 14 can enter the first collecting box 4 along the inclined screen 14, the ultrafine composite mineral admixture screened by the inclined screen 14 can enter the first screen 6 for secondary screening, and the ultrafine composite mineral admixture screened by the first screen 6 can enter the second collecting box 5.

[0024] The feed anti-blocking component includes a feeding wheel 11, a second motor 3 is fixedly connected to the top of the screening box 1, one end of the output shaft of the second motor 3 is fixedly connected to the first transmission wheel 23, the outer surface of the first transmission wheel 23 is transmission-connected to the transmission belt 22, and the fixed rod 12 is rotatably connected inside the feed port 2, the outer surface of the fixed rod 12 is fixedly connected to the middle part of the feeding wheel 11, the outer surface of the fixed rod 12 is fixedly connected to the second transmission wheel 21, the outer surface of the second transmission wheel 21 is transmission-connected to the outer surface of the transmission belt 22. By setting the feeding wheel 11, the ultrafine composite mineral admixture is rotated and transported into the screening box 1 by the feeding wheel 11 in the gap entering the feeding wheel 11, thereby preventing the internal blockage of the feed port 2 from affecting the screening efficiency.

[0025] Working principle: Before performing the screening work, the staff can start the second motor 3, and the output shaft of the second motor 3 rotates to drive the first transmission wheel 23 to rotate. The rotation of the first transmission wheel 23 drives the second transmission wheel 21 to rotate through the transmission belt 22. The rotation of the second transmission wheel 21 causes the fixed rod 12 to rotate. The rotation of the fixed rod 12 drives the feeding wheel 11 to rotate. Then the staff can deliver a large amount of ultrafine composite mineral admixtures to the feed port 2. The ultrafine composite mineral admixtures will enter the gap of the feeding wheel 11 and be delivered into the screening box 1 by the feeding wheel 11 to prevent the feed port 2 from being blocked and affecting the screening efficiency.

[0026] When screening is carried out, the staff can start the first motor 10, and the output shaft of the first motor 10 drives the gear 9 to rotate forward and reversely, and the gear 9 drives the U-shaped rack plate 8 to move left and right. The U-shaped rack plate 8 moves left and right to make the first screen 6 slide left and right inside the screening box 1, and the first screen 6 slides left and right so that the pulling rope 13 can apply tension to the inclined screen 14. The inclined screen 14 is subjected to tension to make the long strip 15 and the slider 19 slide downward in the first chute 16 and the second chute 18 and apply pressure to the first spring 17 and the second spring 20 respectively. The first spring 17 and the second spring 20 are subjected to pressure to contract and generate elastic force. When the pulling rope 13 does not apply tension to the inclined screen 14, the inclined screen 14 is caused to slide upward in the first chute 16 and the second chute 18 under the elastic action of the first spring 17 and the second spring 20, so that the inclined screen 14 slides back and forth up and down inside the screening box 1 to form vibration, thereby improving the screening rate of the device and effectively preventing the screen from being blocked.

[0027] Obviously, those skilled in the art may make various modifications and variations to the present invention without departing from the spirit and scope of the present invention. Thus, if such modifications and variations fall within the scope of the claims of the present invention and their equivalents, the present invention is intended to include such modifications and variations.

Claims

1. A screening device for producing ultrafine composite mineral admixtures, comprising a screening box (1) and a feed port (2), characterized in that: The outer surface of the screening box (1) is fixedly connected to a first collecting box (4), the interior of the screening box (1) is slidably connected to a second collecting box (5), the interior of the screening box (1) is slidably connected to a first screen (6), the outer surface of the first screen (6) is fixedly connected to a plurality of evenly distributed pulling ropes (13), one end of the pulling rope (13) away from the first screen (6) is fixedly connected to an inclined screen (14), the interior of the screening box (1) is slidably connected to the outer surface of the inclined screen (14), the outer surface of the first screen (6) is fixedly connected to a U-shaped rack plate (8), the bottom end of the screening box (1) is fixedly connected to a first motor (10), the output shaft of the first motor (10) is fixedly connected to a gear (9), the top end of the screening box (1) is fixedly connected to the bottom end of the feed port (2), and a feed anti-blocking component is provided between the top end of the screening box (1) and the interior of the feed port (2).

2. A screening device for producing ultrafine composite mineral admixtures according to claim 1, characterized in that: The feed anti-blocking component includes a feed wheel (11), a second motor (3) is fixedly connected to the top of the screening box (1), one end of the output shaft of the second motor (3) is fixedly connected to the first transmission wheel (23), the outer surface of the first transmission wheel (23) is transmission-connected to the transmission belt (22), the feed port (2) is internally rotatably connected to a fixed rod (12), the outer surface of the fixed rod (12) is fixedly connected to the middle of the feed wheel (11), the outer surface of the fixed rod (12) is fixedly connected to the second transmission wheel (21), and the outer surface of the second transmission wheel (21) is transmission-connected to the outer surface of the transmission belt (22).

3. A screening device for producing ultrafine composite mineral admixtures according to claim 1, characterized in that: The pulling ropes (13) are multiple in number and are evenly distributed in a rectangular array on the outer surface of the first screen (6).

4. A screening device for producing ultrafine composite mineral admixtures according to claim 1, characterized in that: The inclined screen (14) is fixedly connected to a long strip plate (15) at one end close to the first collecting box (4), and a first chute (16) is provided on the inner side of the screening box body (1). The interior of the first chute (16) is slidably connected to the outer surface of the long strip plate (15). A first spring (17) is fixedly connected to the inner side of the first chute (16), and the end of the first spring (17) away from the first chute (16) is fixedly connected to the outer surface of the long strip plate (15).

5. The screening device for producing ultrafine composite mineral admixtures according to claim 1, characterized in that: The outer surface of the gear (9) is meshed with the rack of the U-shaped rack plate (8).

6. The screening device for producing ultrafine composite mineral admixtures according to claim 1, characterized in that: The end of the inclined screen (14) away from the first collecting box (4) is fixedly connected to a slider (19), a second chute (18) is provided inside the screening box (1), the interior of the second chute (18) is slidably connected to the slider (19), a second spring (20) is fixedly connected inside the second chute (18), and the end of the second spring (20) away from the second chute (18) is fixedly connected to the outer surface of the slider (19).

7. The screening device for producing ultrafine composite mineral admixtures according to claim 1, characterized in that: The internal opening of the second collecting box (5) corresponds to the opening of the first screen (6), the opening of the inclined screen (14) corresponds to the opening of the first screen (6), and the internal opening of the first collecting box (4) corresponds to the inclined end of the inclined screen (14).

8. The screening device for producing ultrafine composite mineral admixtures according to claim 1, characterized in that: The bottom end of the screening box (1) is fixedly connected to a plurality of evenly distributed support legs (7).

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