Classified screening device for production of superfine slag powder

Abstract

The utility model discloses a grading screening device for superfine slag powder production, which comprises a screening box and a feed hopper, a motor fixing seat is mounted on one side of the screening box, a driving motor is mounted on the motor fixing seat, a partition baffle is mounted on one side of the top in the screening box, a first screening net is mounted on the partition baffle, and a second screening net is mounted on the first screening net. A second screening net is installed in the screening box and located below the first screening net, a threaded lead screw is rotationally connected to the interior of the screening box, a movable sliding block is in threaded connection with the threaded lead screw, the top of the movable sliding block is slidably connected with the screening box, and a movable plate is installed at the bottom of the movable sliding block; a first brush is mounted at the bottom of the moving plate and makes contact with the surface of the first screening net. The slag cleaning device has the advantages that the screen cannot be damaged, the service life of the screen is prolonged, discharging is convenient, slag can be completely cleaned out, the screen is prevented from being blocked by the slag, and the screening effect is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of slag screening, in particular to a grading screening device for slag micro-powder production. Background Art

[0002] Slag powder is the abbreviation of granulated blast furnace slag powder. It is a high-quality concrete admixture. It is made from granulated blast furnace slag that meets the standards, which is dried and ground to achieve a powder with a considerable fineness and a considerable activity index. Granulated blast furnace slag is a molten product with calcium aluminosilicate as the main component obtained when the iron smelting plant smelts pig iron in a blast furnace. It is an industrial solid waste residue obtained after water quenching and granulation. Most of it is glassy and has potential hydraulic cementitious properties.

[0003] The utility model with application number CN202122614842.4 discloses a multi-stage screening device for slag micropowder. The multi-stage screening structure is damped by a shock-absorbing structure to reduce the up and down vibration of the screen, enhance the stability of the screen, and accelerate the replacement and maintenance of the screen through a convenient disassembly structure, thereby reducing maintenance costs and maintenance time and improving production efficiency.

[0004] The above-mentioned device screens by vibrating the screen through a vibration motor, and reduces the vibration generated during use through a shock-absorbing structure, but the screen is always in a state of up and down vibration. After long-term use, the screen is prone to bending and deformation. The service life of the screen is short and needs to be replaced frequently, which increases the cost of use. It is inconvenient to discharge the material, and the slag on the screen cannot be completely discharged. The slag is easily stuck in the filter holes, which reduces work efficiency.

[0005] It should be noted that the above contents belong to the technical knowledge of the inventor and do not necessarily constitute prior art. Utility Model Content

[0006] The utility model aims to solve the above problems and designs a grading and screening device for slag micro-powder production.

[0007] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0008] A grading and screening device for slag micropowder production, comprising a screening box and a feed hopper, a motor fixing seat is installed on one side of the screening box, a driving motor is installed on the motor fixing seat, a partition baffle is installed on one side of the top of the screening box, a first screening net is installed on the partition baffle, the first screening net is fixedly connected to the inner wall of the screening box at one end away from the partition baffle, a second screening net is installed in the screening box, the second screening net is located below the first screening net, a threaded screw is rotatably connected inside the screening box, one end of the threaded screw is fixedly connected to the output end of the driving motor, a moving slider is threadedly connected to the threaded screw, the top of the moving slider is slidably connected to the screening box, a moving plate is installed at the bottom of the moving slider, a first brush is installed at the bottom of the moving plate, and the first brush contacts the surface of the first screening net.

[0009] Furthermore, a transverse through groove is provided on the partition baffle, a moving slide plate is installed on one side of the moving slider, the moving slide plate extends through the transverse through groove at one end away from the moving slider, a multi-stage hydraulic push rod is installed on the moving slide plate, a brush plate is installed on the telescopic end of the multi-stage hydraulic push rod, a second brush is installed on the bottom of the brush plate, and the second brush is in contact with the surface of the second screening net.

[0010] Furthermore, the screening box is provided with a coarse slag opening, which is located on one side of the first screening net; the screening box is provided with a fine slag opening, which is located on one side of the second screening net; a hinge is installed on one side of the screening box, a connecting plate is hinged on the hinge, two sealing baffles are installed on the connecting plate, and the two sealing baffles are respectively matched with the coarse slag opening and the fine slag opening.

[0011] Furthermore, an opening is provided at the lower front end of the screening box, a collecting bucket is installed inside the screening box, the collecting bucket is located below the second screening net, a collecting box is provided inside the screening box, the collecting box is located below the collecting bucket, and movable wheels are installed at the four corners of the bottom of the collecting box.

[0012] Furthermore, a guide plate is installed below the coarse slag port and the fine slag port, and two rotating limit handles are installed on the screening box. The two rotating limit handles are respectively located on one side of the coarse slag port and the fine slag port, and the two rotating limit handles are respectively in contact with the two sealing baffles.

[0013] Furthermore, both sides of the brush plate are slidably connected to the inner wall of the screening box, one end of the movable plate is slidably connected to the partition baffle, and the other end of the movable plate is slidably connected to the inner wall of the screening box.

[0014] Compared with the prior art, this technical solution has the following beneficial effects:

[0015] The first brush is used to push the slag powder to move on the first screening net, so that the slag is prevented from being stuck in the filter holes of the first screening net and the first screening net is prevented from being blocked. The dust on the slag can be swept down, and the large slag is retained on the first screening net, and the small slag and dust fall on the second screening net. The smaller slag and dust fall into the collection box through the second screening net, which is convenient for screening the slag. The slag powder can be fully screened, so that the slag powder can be fully utilized.

[0016] The slag on the first screening net is first cleaned by the first brush, and then the slag on the second screening net is cleaned by the second brush. The brush and the screen are in soft contact and will not cause damage to the screen, thereby increasing the service life of the screen and facilitating discharge of materials. The slag can be completely cleaned out to avoid clogging the screen with slag, thereby improving the screening effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic structural diagram of a grading and screening device for slag micropowder production described in the utility model.

[0018] Figure 2 A schematic cross-sectional view of a screening box.

[0019] Figure 3 A side view of the screening box.

[0020] Figure 4 A side sectional view of the screening box.

[0021] In the figure: 1. screening box; 2. feed hopper; 3. motor fixing seat; 4. driving motor; 5. partition baffle; 6. first screening net; 7. second screening net; 8. threaded screw; 9. moving slider; 10. moving plate; 11. first brush; 12. transverse through groove; 13. moving slide plate; 14. multi-stage hydraulic push rod; 15. brush plate; 16. second brush; 17. coarse slag opening; 18. fine slag opening; 19. hinge; 20. connecting plate; 21. sealing baffle; 22. opening; 23. collecting bucket; 24. collecting box; 25. moving wheel; 26. guide plate; 27. rotating limit handle. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] In the description of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, in the description of the present invention, "multiple" means two or more, unless otherwise clearly and specifically defined.

[0024] The utility model provides Figure 1-4 The grading and screening device for slag micro powder production shown in the figure comprises a screening box 1 and a feed hopper 2, a motor fixing seat 3 is installed on one side of the screening box 1, a driving motor 4 is installed on the motor fixing seat 3, a partition baffle 5 is installed on one side of the top of the screening box 1, a first screening net 6 is installed on the partition baffle 5, the first screening net 6 is fixedly connected to the inner wall of the screening box 1 at one end away from the partition baffle 5, a second screening net 7 is installed in the screening box 1, and the second screening net 7 is located below the first screening net 6, a threaded screw 8 is rotatably connected inside the screening box 1, one end of the threaded screw 8 is fixedly connected to the output end of the driving motor 4, a moving slider 9 is threadedly connected to the threaded screw 8, the top of the moving slider 9 is slidably connected to the screening box 1, a moving plate 10 is installed at the bottom of the moving slider 9, a first brush 11 is installed at the bottom of the moving plate 10, and the first brush 11 contacts the surface of the first screening net 6,

[0025] The slag powder is poured into the screening box 1 through the feed hopper 2, and the slag powder falls on the first screening net 6. The driving motor 4 starts to work, and the output end of the driving motor 4 drives the threaded screw 8 to rotate. The threaded screw 8 rotates to drive the movable slider 9 to slide along the screening box 1, and the movable slider 9 drives the movable plate 10 and the first brush 11 to move. The slag powder is pushed to move on the first screening net 6 through the first brush 11 to avoid the slag being stuck in the filter holes on the first screening net 6 and the first screening net 6 being blocked. The dust on the slag can be swept down, and the large slag remains on the first screening net 6, and the small slag and dust fall on the second screening net 7. The smaller slag and dust fall into the collecting box 24 through the second screening net 7, which is convenient for screening the slag, and the slag powder can be fully screened, which is convenient for making full use of the slag powder, will not cause damage to the screen, and improves the service life of the screen.

[0026] Refer to the instruction manual Figure 2 And the instruction manual Figure 4A transverse through slot 12 is provided on the partition baffle 5, a moving slide plate 13 is installed on one side of the moving slide block 9, and the moving slide plate 13 extends through the transverse through slot 12 at one end away from the moving slide block 9, and a multi-stage hydraulic push rod 14 is installed on the moving slide plate 13, and a brush plate 15 is installed on the telescopic end of the multi-stage hydraulic push rod 14, and a second brush 16 is installed at the bottom of the brush plate 15, and the second brush 16 is in contact with the surface of the second screening net 7,

[0027] After cleaning the slag on the first screening net 6, the multi-stage hydraulic push rod 14 starts to work, the telescopic end of the multi-stage hydraulic push rod 14 extends to drive the brush plate 15 and the second brush 16 to descend, the second brush 16 contacts the surface of the second screening net 7, and the threaded screw 8 is driven to rotate by the driving motor 4. The threaded screw 8 rotates to drive the moving slider 9 to drive the moving slide plate 13, the multi-stage hydraulic push rod 14, the brush plate 15 and the second brush 16 to move, and the second screening net 7 is cleaned by the second brush 16 to avoid the slag being stuck in the filter holes on the second screening net 7 and the second screening net 7 being blocked, and the screened slag can be discharged, thereby improving the working efficiency, not causing damage to the screen, and increasing the service life of the screen.

[0028] Refer to the instruction manual Figure 3 The screening box 1 is provided with a coarse slag opening 17, which is located on one side of the first screening net 6. The screening box 1 is provided with a fine slag opening 18, which is located on one side of the second screening net 7. A hinge 19 is installed on one side of the screening box 1, and a connecting plate 20 is hinged on the hinge 19. Two sealing baffles 21 are installed on the connecting plate 20, and the two sealing baffles 21 are respectively matched with the coarse slag opening 17 and the fine slag opening 18.

[0029] During screening, the coarse slag opening 17 and the fine slag opening 18 are sealed respectively by two sealing baffles 21 to prevent slag from falling from the coarse slag opening 17 and the fine slag opening 18 during screening. When discharging, the connecting plate 20 and the sealing baffle 21 are rotated by the hinge 19 to open the coarse slag opening 17 and the fine slag opening 18 to facilitate discharging.

[0030] Refer to the instruction manual Figure 1 , Instruction Manual Figure 2 And the instruction manual Figure 4 An opening 22 is provided at the lower front end of the screening box 1, a collecting bucket 23 is installed inside the screening box 1, and the collecting bucket 23 is located below the second screening net 7. A collecting box 24 is provided inside the screening box 1, and the collecting box 24 is located below the collecting bucket 23. Moving wheels 25 are installed at the four corners of the bottom of the collecting box 24.

[0031] Smaller slag and slag powder are collected in the collecting box 24 , and the collecting box 24 can be conveniently moved by the moving wheels 25 , so that the materials in the collecting box 24 can be conveniently processed.

[0032] Refer to the instruction manual Figure 1 , Instruction Manual Figure 2 And the instruction manual Figure 3 A guide plate 26 is installed below the coarse slag opening 17 and the fine slag opening 18. Two rotating limit handles 27 are installed on the screening box 1. The two rotating limit handles 27 are respectively located on one side of the coarse slag opening 17 and the fine slag opening 18. The two rotating limit handles 27 are respectively in contact with the two sealing baffles 21.

[0033] The guide plate 26 is used to guide the slag during discharge, and the sealing baffle 21 is limited by rotating the limit handle 27 .

[0034] Refer to the instruction manual Figure 4 The two sides of the brush plate 15 are slidably connected to the inner wall of the screening box 1, one end of the movable plate 10 is slidably connected to the partition baffle 5, and the other end of the movable plate 10 is slidably connected to the inner wall of the screening box 1.

[0035] Avoid the brush plate 15 and the moving plate 10 from shifting in position during movement, thereby avoiding bending and deformation.

[0036] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A grading and screening device for producing slag micro powder, comprising a screening box (1) and a feed hopper (2), wherein a motor fixing seat (3) is installed on one side of the screening box (1), and a driving motor (4) is installed on the motor fixing seat (3), characterized in that: A partition baffle (5) is installed on one side of the top of the screening box (1), and a first screening net (6) is installed on the partition baffle (5). The end of the first screening net (6) away from the partition baffle (5) is fixedly connected to the inner wall of the screening box (1). A second screening net (7) is installed in the screening box (1), and the second screening net (7) is located below the first screening net (6). A threaded screw (8) is rotatably connected inside the screening box (1), and one end of the threaded screw (8) is fixedly connected to the output end of the drive motor (4). A movable slider (9) is threadedly connected to the threaded screw (8), and the top of the movable slider (9) is slidably connected to the screening box (1). A movable plate (10) is installed at the bottom of the movable slider (9), and a first brush (11) is installed at the bottom of the movable plate (10). The first brush (11) contacts the surface of the first screening net (6).

2. A grading and screening device for slag micro powder production according to claim 1, characterized in that: The partition baffle (5) is provided with a transverse through groove (12), a moving slide plate (13) is installed on one side of the moving slide block (9), the end of the moving slide plate (13) away from the moving slide block (9) extends through the transverse through groove (12), a multi-stage hydraulic push rod (14) is installed on the moving slide plate (13), a brush plate (15) is installed on the telescopic end of the multi-stage hydraulic push rod (14), a second brush (16) is installed at the bottom of the brush plate (15), and the second brush (16) is in contact with the surface of the second screening net (7).

3. The grading and screening device for slag micropowder production according to claim 1, characterized in that: The screening box (1) is provided with a coarse slag opening (17), the coarse slag opening (17) being located on one side of the first screening net (6); the screening box (1) is provided with a fine slag opening (18), the fine slag opening (18) being located on one side of the second screening net (7); a hinge (19) is installed on one side of the screening box (1), a connecting plate (20) is hingedly connected to the hinge (19), two sealing baffles (21) are installed on the connecting plate (20), and the two sealing baffles (21) are respectively matched with the coarse slag opening (17) and the fine slag opening (18).

4. The grading and screening device for slag micro powder production according to claim 1, characterized in that: An opening (22) is provided at the lower front end of the screening box (1), a collecting bucket (23) is installed inside the screening box (1), the collecting bucket (23) is located below the second screening net (7), a collecting box (24) is provided inside the screening box (1), the collecting box (24) is located below the collecting bucket (23), and moving wheels (25) are installed at the four corners of the bottom of the collecting box (24).

5. The grading and screening device for slag micro powder production according to claim 3, characterized in that: A guide plate (26) is installed below the coarse slag opening (17) and the fine slag opening (18), and two rotating limit handles (27) are installed on the screening box (1), the two rotating limit handles (27) are respectively located on one side of the coarse slag opening (17) and the fine slag opening (18), and the two rotating limit handles (27) are respectively in contact with the two sealing baffles (21).

6. The grading and screening device for slag micro powder production according to claim 2, characterized in that: Both sides of the brush plate (15) are slidably connected to the inner wall of the screening box (1), one end of the movable plate (10) is slidably connected to the partition baffle (5), and the other end of the movable plate (10) is slidably connected to the inner wall of the screening box (1).

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