Grinding mechanism

Abstract

The grinding mechanism comprises a motor box, a second motor is arranged in the motor box, the output end of the second motor is connected with a conical rod, a plurality of balls are arranged at the lower end of the conical rod, filter screens are arranged at the lower ends of the balls, and a discharging pipe is connected to the side face of the motor box. And an upper mesh plate is connected to the interior of the lower end of the discharging pipe. Slag entering a filter screen can make contact with an upper net plate along with air flow, nearly-circular slag can pass through the upper net plate and then be discharged through a discharging pipe, non-nearly-circular slag can be blocked by the upper net plate to fall down and slide to the lower end of the interior of the filter screen along with a conical rod, a second motor is started to drive the conical rod to rotate, and the conical rod is driven to rotate. The conical rod drives the ball to rotate along with the first rotating groove and the second rotating groove, slag which is not approximately circular is ground, and the slag is discharged through the upper net plate and the discharging pipe when being ground to be approximately circular, so that micro powder of the slag is round particle powder.

Description

Technical Field

[0001] The present invention relates to the field of slag grinding, and specifically to a grinding mechanism for grinding round powder particles of blast furnace slag. Background Art

[0002] Blast furnace slag is a kind of waste slag discharged from the blast furnace during the smelting of pig iron. High-performance granulated blast furnace slag powder has significant technical and economic advantages in the preparation of precast concrete components. The performance index requirements of granulated blast furnace slag powder exceed the S105 grade technical requirements of GB / T18046-2008 "Granulated Blast Furnace Slag Powder Used in Cement and Concrete". The processed granulated blast furnace slag powder is tested according to GB / T18046-2008, with a 7-day activity index > 95%, a 28-day activity index > 105%, a fluidity ratio > 95%, and the particle morphology of the powder is nearly spherical. Therefore, it plays a crucial role in grinding blast furnace slag into round granular powder.

[0003] Most of the slag ground by the slag grinders on the current market will have many flaky, square, and amorphous shapes after grinding, which is not conducive to alkali activation, and thus it is difficult to bring out the latent activity of blast furnace slag as early as possible. For this reason, we propose a grinding mechanism for grinding round powder particles of blast furnace slag. Summary of the Invention

[0004] In order to achieve the above object, the present invention adopts the following technical solutions:

[0005] A grinding mechanism, the grinding mechanism includes a motor box, a second motor is arranged inside the motor box, the output end of the second motor is connected with a tapered rod, a plurality of round beads are arranged at the lower end of the tapered rod, a filter screen is arranged at the lower end of the round beads, a discharge pipe is connected to the side of the motor box, and an upper net plate is connected to the inside of the lower end of the discharge pipe.

[0006] A plurality of first rotating grooves are opened at the inner bottom of the filter screen, the round beads are arranged inside the first rotating grooves, a plurality of second rotating grooves are opened at the lower end of the tapered rod, and the round beads are arranged inside the second rotating grooves.

[0007] The upper net plate is arranged at the upper end inside the filter screen, and the lower end opening of the discharge pipe is arranged at the lower end of the motor box.

[0008] It further includes a box body, a grinding mechanism is arranged at the upper end of the box body, two grinding rollers are arranged inside the box body, a rotating plate is arranged at the lower end of the grinding rollers, a support plate is connected to the lower end of the box body, a plurality of support rods are connected to the periphery of the lower end of the support plate, a lower net plate is arranged in the middle of the support plate, and an air inlet pipe is connected to the lower end of the support plate.

[0009] One end of the air inlet pipe is connected to a fan, the upper end of the lower mesh plate is connected to a fixing rod, the upper end of the fixing rod is connected to a limiting plate, and a rotating groove is provided in the middle of the lower end of the rotating plate.

[0010] A limiting groove is provided at the upper end of the rotating groove, the fixing rod is arranged inside the rotating groove and is rotatably connected, and the limiting plate is arranged inside the limiting groove and is rotatably connected.

[0011] A grinding groove is provided at the upper end of the rotating plate, the lower end of the grinding roller is connected to the grinding groove, two side boxes are connected to both sides of the box body, a rotating rod is connected to the side of the grinding roller, and the grinding roller is arranged in an inclined shape.

[0012] One end of the rotating rod is connected to a first motor, two sides of the first motor are connected to two connecting plates, and the connecting plates are fixedly connected to the side box via a plurality of connecting rods.

[0013] A feed pipe is connected to the side of the box body, a feed port is connected to the upper end of the feed pipe, a lower end of the feed pipe is arranged inside the box body, and a guide ring is arranged outside the lower end of the feed pipe.

[0014] A fixing ring is sleeved on the lower end of the outer side of the motor box, the lower end of the fixing ring is connected and fixed to the upper end of the box body, and the upper end of the filter screen is connected to the inner upper end of the box body.

[0015] The beneficial effects of the present invention are:

[0016] The structure of the present invention can make the slag entering the filter screen contact the screen plate with the air flow, and the slag with a nearly circular shape will pass through the screen plate and then be discharged through the discharge pipe, while the slag with a non-circular shape will be blocked by the screen plate and fall, and slide down to the inner lower end of the filter screen along with the cone rod, and the second motor is started to drive the cone rod to rotate, and the cone rod drives the round ball to rotate with the first rotating groove and the second rotating groove, and grinds the slag with a non-circular shape. When it is ground into a nearly circular shape, it is discharged through the screen plate and the discharge pipe, so that the micro powder is a round powder, which is completely suitable for other processing, is beneficial to the alkali excitation of other processing, and is beneficial to the potential activity of blast furnace slag powder during processing.

[0017] In addition, a filter is installed at the upper end of the box to block the flake and long strip slag and return it to the grinding roller for further processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A schematic diagram of the structure of the front viewing angle of the present invention.

[0019] Figure 2 It is a schematic diagram of the rear viewing angle structure of the present invention.

[0020] Figure 3 It is a front sectional structure schematic diagram of the present invention.

[0021] Figure 4 It is a sectional structure schematic diagram of the outer shell of the present invention.

[0022] Figure 5 It is a perspective structure schematic diagram of the rotating plate of the present invention.

[0023] Figure 6 It is a front sectional structure schematic diagram of the motor box of the present invention.

[0024] Figure 7 It is a side sectional structure schematic diagram of the motor box of the present invention.

[0025] Figure 8 It is a side sectional perspective structure schematic diagram of the present invention.

[0026] Reference numerals in the figure: 1, box body; 2, support plate; 3, support rod; 4, intake pipe; 5, fan; 6, first motor; 7, feed pipe; 8, feed inlet; 9, motor box; 10, fixing ring; 11, discharge pipe; 12, side box; 13, connecting plate; 14, connecting rod; 15, guide ring; 16, grinding roller; 17, rotating rod; 18, rotating plate; 19, lower mesh plate; 20, limiting plate; 21, fixing rod; 22, second motor; 23, filter screen; 24, grinding groove; 25, limiting groove; 26, rotating groove; 27, tapered rod; 28, round bead; 29, first rotating groove; 30, second rotating groove; 31, upper mesh plate. Detailed implementation manners

[0027] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments.

[0028] Refer to Figures 1 - 8 As shown, this embodiment provides a grinding mechanism, which is used for grinding round powder particles of blast furnace slag or for a slag grinding device, and includes a box body 1. A grinding mechanism is provided at the upper end of the box body 1. Two grinding rollers 16 are provided inside the box body 1. A rotating plate 18 is provided at the lower end of the grinding roller 16. The grinding mechanism includes a motor box 9. A second motor 22 is provided inside the motor box 9. The output end of the second motor 22 is connected to a tapered rod 27. A plurality of round beads 28 are provided at the lower end of the tapered rod 27. A filter screen 23 is provided at the lower end of the round bead 28. The side of the motor box 9 is connected to a discharge pipe 11. The lower end inside the discharge pipe 11 is connected to an upper mesh plate 31. The filter screen 23 is used to block irregular slag for the first time and reduce the grinding pressure of the round beads 28.

[0029] As Figures 1 - 4As shown, a support plate 2 is connected to the lower end of the box body 1. A plurality of support rods 3 are connected to the periphery of the lower end of the support plate 2. A lower mesh plate 19 is arranged in the middle of the support plate 2. An air inlet pipe 4 is connected to the lower end of the support plate 2. One end of the air inlet pipe 4 is connected to a blower 5. A fixed rod 21 is connected to the upper end of the lower mesh plate 19. A limiting plate 20 is connected to the upper end of the fixed rod 21. A rotating groove 26 is formed in the middle of the lower end of the rotating plate 18. A limiting groove 25 is formed in the upper end of the rotating groove 26. The fixed rod 21 is arranged inside the rotating groove 26 and is rotatably connected. The limiting plate 20 is arranged inside the limiting groove 25 and is rotatably connected. The fixed rod 21 is used to lift the rotating plate 18 to prevent the rotating plate 18 from blocking the lower mesh plate 19, resulting in air being unable to enter the inside of the box body 1. A grinding groove 24 is formed in the upper end of the rotating plate 18. The lower end of the grinding roller 16 is connected to the grinding groove 24. Two side boxes 12 are connected to both sides of the box body 1. A rotating rod 17 is connected to the side surface of the grinding roller 16. One end of the rotating rod 17 is connected to a first motor 6. Two connecting plates 13 are connected to both sides of the first motor 6. The connecting plates 13 and the side boxes 12 are connected and fixed through a plurality of connecting rods 14. The grinding groove 24 is used to collect the slag into it for convenient and rapid grinding.

[0030] As Figures 5 - 8 shown, a feed pipe 7 is connected to the side surface of the box body 1. A feed inlet 8 is connected to the upper end of the feed pipe 7. The lower end of the feed pipe 7 is arranged inside the box body 1. A diversion ring 15 is arranged on the outer side of the lower end of the feed pipe 7. A fixing ring 10 is sleeved on the outer side of the lower end of the motor box 9. The lower end of the fixing ring 10 is fixedly connected to the upper end of the box body 1. The upper end of the filter net 23 is connected to the upper end inside the box body 1. A plurality of first rotating grooves 29 are formed in the inner bottom of the filter net 23. The round beads 28 are arranged inside the first rotating grooves 29. A plurality of second rotating grooves 30 are formed in the lower end of the tapered rod 27. The round beads 28 are arranged inside the second rotating grooves 30. An upper mesh plate 31 is arranged on the upper end inside the filter net 23. The grinding roller 16 is arranged in an inclined shape. The lower end opening of the discharge pipe 11 is arranged at the lower end of the motor box 9. The tapered rod 27 is used to slide the slag blocked by the upper mesh plate 31 along its side wall to the position of the round beads 28.

[0031] The working principle of the present invention, which is also the method for grinding blast furnace slag into round powder particles: When in use, the slag is put into the inside of the feed inlet 8. The slag enters the inside of the box body 1 through the feed pipe 7 and is then guided to the rotating plate 18 through the diversion ring 15. The first motor 6 is started to drive the rotating rod 17 to rotate. The rotating rod 17 drives the grinding roller 16 to rotate. The grinding roller 16 rotates inside the grinding groove 24 to drive the rotating plate 18 to rotate along with the fixed rod 21. When the rotating plate 18 rotates, due to centrifugal force, the slag will enter the inside of the grinding groove 24 and is then ground by the rotation of the grinding roller 16;

[0032] The fan 5 is started to let air enter the interior of the box 1 through the air inlet pipe 4 and the lower mesh plate 19. The air blows the fine slag upward. When the fine slag contacts the filter 23, the slag with regular shapes will enter the interior of the filter 23, and the slag with irregular shapes will be blocked by the filter 23 and discharged for further processing.

[0033] The slag entering the filter 23 contacts the mesh plate 31 with the air flow. The slag with a nearly circular shape will pass through the mesh plate 31 and then be discharged through the discharge pipe 11. The slag with a non-circular shape will be blocked by the mesh plate 31 and fall down, and slide down to the lower end of the inner part of the filter 23 along with the cone rod 27. The second motor 22 is started to drive the cone rod 27 to rotate. The cone rod 27 drives the ball 28 to rotate along with the first rotating groove 29 and the second rotating groove 30, and the slag with a non-circular shape is ground. When it is ground into a nearly circular shape, it is discharged through the mesh plate 31 and the discharge pipe 11.

[0034] After testing, the blast furnace slag powder produced by the processing method of the device makes its micro powder present as round particles, which fully meets the relevant standards for use, is suitable for other processing, is beneficial to the alkali excitation of other processing, and is beneficial to the potential activity of the blast furnace slag powder during processing.

[0035] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A grinding mechanism, characterized in that, It includes a motor box (9), inside which a second motor (22) is provided. The output end of the second motor (22) is connected to a tapered rod (27). Multiple round beads (28) are provided at the lower end of the tapered rod (27). A filter screen (23) is provided at the lower end of the round beads (28). A discharge pipe (11) is connected to the side of the motor box (9). An upper mesh plate (31) is connected to the inside of the lower end of the discharge pipe (11).

2. The grinding mechanism according to claim 1, wherein Multiple first rotation grooves (29) are formed at the inner bottom of the filter screen (23). The round beads (28) are arranged inside the first rotation grooves (29). Multiple second rotation grooves (30) are formed at the lower end of the tapered rod (27). The round beads (28) are arranged inside the second rotation grooves (30).

3. A grinding mechanism according to claim 1, characterized in that, A fixing ring (10) is sleeved on the lower outer side of the motor box (9). The lower end of the fixing ring (10) is fixedly connected to the upper end of the box body (1). The upper end of the filter screen (23) is connected to the upper inner part of the box body (1).

4. A grinding mechanism according to claim 1, wherein, The upper mesh plate (31) is arranged at the upper inner part of the filter screen (23). The lower end opening of the discharge pipe (11) is arranged at the lower end of the motor box (9).

5. A grinding mechanism according to claim 1, wherein It also includes a box body (1). A grinding mechanism is provided at the upper end of the box body (1). A support plate (2) is connected to the lower end of the box body (1). Multiple support rods (3) are connected to the four surrounding sides of the lower end of the support plate (2). A lower mesh plate (19) is arranged in the middle of the support plate (2). An air inlet pipe (4) is connected to the lower end of the support plate (2).

6. A slag grinding device according to claim 2, characterized in that, Two grinding rollers (16) are arranged inside the box body (1). A rotating plate (18) is provided at the lower end of the grinding rollers (16). One end of the air inlet pipe (4) is connected to a blower (5). A fixing rod (21) is connected to the upper end of the lower mesh plate (19). A limiting plate (20) is connected to the upper end of the fixing rod (21). A rotation groove (26) is formed at the middle of the lower end of the rotating plate (18). A limiting groove (25) is formed at the upper end of the rotation groove (26). The fixing rod (21) is arranged inside the rotation groove (26) and is in rotational connection. The limiting plate (20) is arranged inside the limiting groove (25) and is in rotational connection.

7. The grinding mechanism according to claim 6, characterized in that, A powder grinding groove (24) is formed at the upper end of the rotating plate (18). The lower end of the grinding rollers (16) is connected to the powder grinding groove (24). Two side boxes (12) are connected to the two sides of the box body (1). A rotating rod (17) is connected to the side of the grinding rollers (16). The grinding rollers (16) are arranged in an inclined shape.

8. A grinding mechanism according to claim 7, characterized in that, One end of the rotating rod (17) is connected to a first motor (6). Two connecting plates (13) are connected to the two sides of the first motor (6). The connecting plates (13) and the side boxes (12) are fixedly connected through multiple connecting rods (14).

9. A grinding mechanism according to claim 1, characterized in that, A feed pipe (7) is connected to the side of the box body (1). A feed inlet (8) is connected to the upper end of the feed pipe (7). The lower end of the feed pipe (7) is arranged inside the box body (1). A guide ring (15) is arranged on the outer side of the lower end of the feed pipe (7).

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