A slag ultrafine grinding equipment with circulating grinding function

Abstract

This invention discloses an ultrafine slag grinding device with a circulating grinding function in the field of slag grinding technology. It includes a housing with a discharge port at the bottom. A powder wheel is disposed inside the housing, and a filter plate is disposed inside the housing at the bottom of the powder wheel. A grading feeding auger is fixedly connected to one side of the housing, and a fixed motor is fixedly connected to the bottom of the grading feeding auger. This invention employs an anti-clogging circulation component. This component pushes the filter plate up and down inside the housing. Firstly, it vibrates the slag on the filter plate, causing it to slide along the filter plate towards the feeding frame. Simultaneously, the vibration also agitates the slag on the filter plate, preventing the top layer of slag from accumulating and failing to pass through the filter plate. Secondly, while the filter plate slides up and down, the anti-clogging circulation component cleans the inside of the filter plate, preventing clogging.

Description

Technical Field

[0001] This invention relates to the field of slag grinding technology, specifically to an ultrafine slag grinding device with a circulating grinding function. Background Technology

[0002] Slag is a byproduct of the blast furnace ironmaking process. During ironmaking, iron oxide is reduced to metallic iron at high temperatures. Impurities such as silica and alumina in iron ore react with lime to form a molten material mainly composed of silicates and aluminosilicates. Slag plays an important role in industrial production, especially in some large-scale factories, where it is used to produce slag cement, slag powder, slag silicate cement, slag wool, blast furnace slag, granulated blast furnace slag powder, copper slag, etc.

[0003] When slag is being ground and recycled, due to its high hardness, it needs to be ground multiple times to ensure the grinding effect. During the grinding process, the ground slag needs to be filtered, and slag that is not ground with sufficient precision needs to be ground again. Usually, the slag is filtered through filter screens of different mesh sizes. However, slag can easily get stuck on the filter screen, which affects the filtering effect. Moreover, since the filter screen is inside the grinding equipment, the location of the stuck material is not the same each time, making it very inconvenient to clean the filter screen.

[0004] Based on this, the present invention designs an ultrafine slag grinding device with a circulating grinding function to solve the problem that the slag is easily stuck on the filter screen of the circulating slag, causing filter screen blockage. Summary of the Invention

[0005] The purpose of this invention is to provide a slag ultrafine grinding device with a circulating grinding function to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a slag ultrafine grinding device with a circulating grinding function, comprising a shell, a discharge port at the bottom of the shell, a powder wheel inside the shell, a filter plate inside the shell at the bottom of the powder wheel, a grading feeding auger fixedly connected to one side of the shell, a fixed motor fixedly connected to the bottom of the grading feeding auger, a feeding frame fixedly connected to one end of the grading feeding auger, the other end of the feeding frame connecting to an opening on the grading feeding auger, and a grading feeding funnel fixedly connected to the top of the grading feeding auger. The device is characterized in that: an anti-clogging circulation component is provided on the filter plate, which is used to clean the slag clogged on the filter plate and assist the slag on the filter plate in circulating grinding inside the grading feeding auger.

[0007] As a further embodiment of the present invention, the anti-clogging circulation assembly includes fixed columns, a plurality of fixed columns being equidistantly slidably disposed at the bottom of the filter plate, a connecting rod being fixedly connected to the plurality of fixed columns, a groove being provided on one side of the housing, one end of the connecting rod slidingly passing through the groove and disposed on the outside of the housing, a slider being fixedly connected to one end of the connecting rod, and upwardly extending fixed rods being fixedly connected to the housing on both sides of the groove, the outer wall of one end of the slider slidingly fitting against the fixed rod, a fixed plate being fixedly connected to the top of the fixed column, a plurality of telescopic rods being equidistantly connected to the fixed plate, a return spring being fixedly connected to the bottom of the telescopic rod for resetting, a cam being rotatably connected inside the housing, the top of the cam fitting against the bottom of the filter plate, and a fixed spring being fixedly connected to one end of the fixed column for resetting.

[0008] As a further embodiment of the present invention, the top of the telescopic rod is frustum-shaped, and a roller is rotatably mounted on the top of the telescopic rod.

[0009] As a further embodiment of the present invention, a sealing plate is slidably connected to the connecting rod, and the sealing plate is slidably disposed in the slide groove.

[0010] As a further embodiment of the present invention, the housing is provided with two sets of powder wheels, each set of powder wheels is provided with a corresponding anti-clogging circulation component at the bottom, and each set of powder wheels is provided with a graded feeding funnel at the top that is connected to the graded feeding auger.

[0011] As a further embodiment of the present invention, an activated carbon plate is fixedly connected to the inner wall of the shell.

[0012] As a further embodiment of the present invention, the outer wall of the connecting rod can be completely fitted with the inner wall of the groove.

[0013] As a further embodiment of the present invention, an opening is provided on one side of the housing for the feeding rack to slide upward, and one end of the feeding rack is in contact with the outer wall of the graded feeding auger.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] This invention employs an anti-clogging circulation component. The anti-clogging circulation component pushes the filter plate to slide up and down inside the housing. Firstly, it vibrates the slag on the filter plate, causing it to slide along the filter plate towards the feed frame. At the same time, the vibration of the filter plate also causes the slag on the filter plate to turn over, thereby avoiding the problem of the top layer of slag being unable to pass through the filter plate due to slag accumulation. Secondly, while the filter plate is sliding up and down, the anti-clogging circulation component cleans the inside of the filter plate, so that the filter plate will not clog. Attached Figure Description

[0016] Figure 1This is a schematic diagram of the overall structure of the present invention;

[0017] Figure 2 for Figure 1 Enlarged structural diagram at point A in the middle;

[0018] Figure 3 This is a schematic diagram of a portion of the internal structure of the shell;

[0019] Figure 4 for Figure 3 Enlarged structural diagram at point B;

[0020] Figure 5 This is a schematic diagram of the internal side structure of the shell;

[0021] Figure 6 Schematic diagram of the anti-clogging circulation component structure;

[0022] Figure 7 This is a magnified structural diagram of point C in convex 6.

[0023] The attached diagram lists the components represented by each number as follows:

[0024] 1. Grading feeding auger; 2. Fixed motor; 3. Discharge port; 4. Powder wheel; 5. Grading feeding funnel; 6. Shell; 7. Slide chute; 8. Fixed rod; 9. Sliding block; 10. Feeding rack; 11. Filter plate; 12. Sealing plate; 13. Connecting rod; 14. Cam; 15. Fixed plate; 16. Fixed column; 17. Roller; 18. Telescopic rod; 19. Return spring. Detailed Implementation

[0025] Please see Figure 1-7 This invention provides a technical solution: a slag ultrafine grinding device with a circulating grinding function, comprising a shell 6, a discharge port 3 at the bottom of the shell 6, a powder wheel 4 inside the shell 6, a filter plate 11 inside the shell 6 at the bottom of the powder wheel 4, a grading feeding auger 1 fixedly connected to one side of the shell 6, a fixed motor 2 fixedly connected to the bottom of the grading feeding auger 1, a feeding frame 10 fixedly connected to one end of the grading feeding auger 1, the other end of the feeding frame 10 connecting to an opening on the grading feeding auger 1, and a grading feeding funnel 5 fixedly connected to the top of the grading feeding auger 1. The device is characterized in that: an anti-clogging circulation component is provided on the filter plate 11, which is used to clean the slag clogged on the filter plate 11 and assist the slag on the filter plate 11 in circulating grinding inside the grading feeding auger 1;

[0026] In practical use, the slag to be ground is added from the top of the shell 6 into the shell 6. Simultaneously, the powder wheel 4 is started to grind the slag. The ground slag falls onto the filter plate 11. Part of the pulverized slag is filtered through the filter plate 11, while slag that is not sufficiently ground remains on the filter plate 11. Because the filter plate 11 is inclined inside the shell 6, it slides up and down inside the shell 6 via the anti-clogging circulation component. The slag on the filter plate 11 gradually slides onto the feeding rack 10, then enters the grading feeding auger 1 through the feeding rack 10. After being transported to the top by the grading feeding auger 1, it enters the grading feeding funnel 5, and then re-enters the shell 6 along the grading feeding funnel 5, where it is ground again by the powder wheel 4. This process achieves cyclic grinding of the slag. If any slag gets stuck in the filter... Inside the filter plate 11, the anti-clogging circulation component pushes the filter plate 11 up and down while cleaning the inside of the filter plate 11, so that the slag stuck on the filter plate 11 is removed from the inside of the filter plate 11. This prevents the filter plate 11 from becoming clogged and thus reducing the filtration effect. The benefits of this are twofold: First, by pushing the filter plate 11 up and down inside the housing 6 through the anti-clogging circulation component, the slag on the filter plate 11 is vibrated, causing it to slide along the filter plate 11 toward the feed rack 10. At the same time, the vibration of the filter plate 11 also causes the slag on the filter plate 11 to turn over, thus preventing the problem of the top layer of slag from being unable to pass through the filter plate 11 due to slag accumulation. Second, while the filter plate 11 is sliding up and down, the anti-clogging circulation component cleans the inside of the filter plate 11, so that the filter plate 11 will not become clogged.

[0027] As a further embodiment of the present invention, the anti-clogging circulation assembly includes fixed columns 16, a plurality of fixed columns 16 being equidistantly slidably disposed at the bottom of the filter plate 11, a connecting rod 13 being fixedly connected to the plurality of fixed columns 16, a sliding groove 7 being provided on one side of the housing 6, one end of the connecting rod 13 slidingly passing through the sliding groove 7 and disposed on the outside of the housing 6, a slider 9 being fixedly connected to one end of the connecting rod 13, and upwardly inclined fixed rods 8 being fixedly connected to the housing 6 on both sides of the sliding groove 7, the outer wall of one end of the slider 9 slidingly fitting against the fixed rod 8, a fixed plate 15 being fixedly connected to the top of the fixed column 16, a plurality of telescopic rods 18 being equidistantly connected to the fixed plate 15, a reset spring 19 for resetting being fixedly connected to the bottom of the telescopic rod 18, a cam 14 being rotatably connected inside the housing 6, the top of the cam 14 fitting against the bottom of the filter plate 11, a fixed spring for resetting being fixedly connected to one end of the fixed column 16, the top of the telescopic rod 18 being frustum-shaped, and a roller 17 rotating on the top of the telescopic rod 18;

[0028] When the above scheme is put into actual use, when transporting slag on the filter plate 11, the cam 14 is activated to rotate, thereby causing the filter plate 11 to vibrate up and down. When the filter plate 11 vibrates, it transports the slag to the feeding rack 10 on one side, and at the same time screens and filters the fine slag inside the slag. During the vibration process, slag can easily get stuck inside the filter plate 11. When the cam 14 pushes the filter plate 11 to slide upward, the fixed column 16 slides upward with the filter plate 11. The fixed column 16 drives the connecting rod 13 to slide upward together. Due to the restriction effect of the fixed rod 8 on the slider 9, the slider 9 slides upward and at the same time slides along the fixed rod 8 towards one end of the housing 6. The slider 9 pulls the connecting rod 13. The connecting rod 13 pulls the fixed column 16 to slide, so that the fixed column 16 slides upward with the filter plate 11. At the same time, the fixed column 16 slides relative to the filter plate 11. When the fixed column 16 slides relative to the filter plate 11, it will contact the filter screen through the roller 17 at the top of the telescopic rod 18. The rolling contact of the roller 17 reduces the friction when the telescopic rod 18 contacts the filter screen. When the roller 17 contacts the filter screen, it rotates and compresses the return spring 19, so that the telescopic rod 18 slides into the fixed plate 15. When the roller 17 disengages from the filter screen, the return spring 19 returns to its original position and pushes the telescopic rod 18 upward. The roller 17 can then push the slag stuck inside the filter screen and make it detach from the filter plate 11.

[0029] When the filter plate 11 slides down, the spring force of the fixed spring will pull the fixed column 16 back to its original position, so that the filter plate 11 and the fixed column 16 return to their initial positions.

[0030] As a further embodiment of the present invention, a sealing plate 12 is slidably connected to the connecting rod 13, and the sealing plate 12 is slidably disposed in the slide groove 7;

[0031] When the above solution is put into actual use, the gap of the slide 7 is blocked by the sealing plate 12, so that when the connecting rod 13 is at the bottom of the slide 7, the gap at the top of the slide 7 is completely blocked by the sealing plate 12. In this way, the slag filtered by the filter plate 11 will not splash from the slide 7 to the outside of the shell 6.

[0032] As a further embodiment of the present invention, the housing 6 is provided with two sets of powder wheels 4, the bottom of each set of powder wheels 4 is provided with a corresponding anti-clogging circulation component, and the top of each set of powder wheels 4 is provided with a graded feeding funnel 5 that is connected to the graded feeding auger 1.

[0033] When the above scheme is put into actual use, the filtration precision of the two sets of powder wheels 4 is different. The slag is first crushed and filtered by one powder wheel 4, and then crushed and filtered again by the other powder wheel 4, so that the slag grinding effect is more complete. Moreover, the slag that is not completely ground on both sets of powder wheels 4 can be transported to the inside of the grading feeding auger 1 through the anti-clogging circulation component, and then transported to the top for recirculation and grinding through the grading feeding funnel 5 on the grading feeding auger 1.

[0034] As a further embodiment of the present invention, an activated carbon plate is fixedly connected to the inner wall of the housing 6;

[0035] When the above solution is put into practical use, a large amount of dust will be generated during the crushing of slag. The dust can be effectively prevented from flying by the adsorption of activated carbon plates.

[0036] As a further embodiment of the present invention, the outer wall of the connecting rod 13 can be completely fitted with the inner wall of the slide groove 7;

[0037] When the above solution is put into actual use, the perfect fit makes the connecting rod 13 more stable when sliding inside the groove 7.

[0038] As a further embodiment of the present invention, an opening is provided on one side of the housing 6 for the feeding rack 10 to slide upward, and one end of the feeding rack 10 is attached to the outer wall of the graded feeding auger 1.

[0039] When the above solution is put into actual use, the opening ensures that the feeding rack 10 will not be blocked by the housing 6 when it slides with the filter plate 11 inside the housing 6. The feeding rack 10 is in close contact with the grading feeding auger 1 so that the slag inside the feeding rack 10 will not leak out, and can ensure that it is completely transported into the housing 6.

[0040] Working principle: The slag to be ground is added into the shell 6 from the top. Simultaneously, the powder wheel 4 is started to rotate and grind the slag. The ground slag falls onto the filter plate 11. Part of the pulverized slag is filtered through the filter plate 11, while slag with insufficient grinding precision remains on the filter plate 11. The slag on the filter plate 11 gradually slides onto the feeding rack 10. Because the filter plate 11 is inclined inside the shell 6, the slag on the filter plate 11 gradually slides onto the feeding rack 10, simultaneously screening out fine slag inside the slag. During vibration, slag can easily get stuck inside the filter plate 11. When the cam 14 pushes the filter plate 11 upwards, the fixed column 16 slides upwards along with the filter plate 11. The fixed column 16 drives the connecting rod 13 to slide upwards as well. Due to the restriction effect of the fixed rod 8 on the slider 9, the slider 9 slides upwards while simultaneously moving along the fixed rod 8 towards the shell 6. When the end slides, the slider 9 pulls the connecting rod 13, and the connecting rod 13 pulls the fixed column 16 to slide, so that the fixed column 16 slides upward with the filter plate 11. At the same time, the fixed column 16 slides relative to the filter plate 11. When the fixed column 16 slides relative to the filter plate 11, it will contact the filter screen through the roller 17 at the top of the telescopic rod 18. The rolling contact of the roller 17 reduces the friction when the telescopic rod 18 contacts the filter screen. When the roller 17 contacts the filter screen, it rotates and compresses the return spring 19, so that the telescopic rod 18 slides into the fixed plate 15. When the roller 17 disengages from the filter screen, the return spring 19 returns to its original position and pushes the telescopic rod 18 upward. This allows the roller 17 to push the slag stuck inside the filter screen and disengage it from the filter plate 11. When the filter plate 11 slides down, the spring force of the fixed spring will pull the fixed column 16 back to its original position, so that the filter plate 11 and the fixed column 16 return to their initial positions.

[0041] The slag enters the grading feeding auger 1 through the feeding rack 10, is transported to the top by the grading feeding auger 1 and then enters the grading feeding funnel 5. It then re-enters the shell 6 along the grading feeding funnel 5 and is ground again by the powder wheel 4, thus realizing the cyclic grinding of the slag.

Claims

1. A slag ultrafine grinding device with circulating grinding function, comprising a shell (6), wherein a discharge port (3) is provided at the bottom of the shell (6), a powder wheel (4) is provided inside the shell (6), a filter plate (11) is provided inside the shell (6) at the bottom of the powder wheel (4), a grading feeding auger (1) is fixedly connected to one side of the shell (6), a fixed motor (2) is fixedly connected to the bottom of the grading feeding auger (1), a feeding frame (10) is fixedly connected to one end of the grading feeding auger (1), the other end of the feeding frame (10) is connected to an opening on the grading feeding auger (1), and a grading feeding funnel (5) is fixedly connected to the top of the grading feeding auger (1), characterized in that: The filter plate (11) is provided with an anti-clogging circulation component, which is used to clean the slag clogged on the filter plate (11) and assist the slag on the filter plate (11) to circulate and grind inside the graded feeding auger (1). The anti-clogging circulation assembly includes fixed columns (16), a plurality of fixed columns (16) are equidistantly slidably disposed at the bottom of the filter plate (11), and a connecting rod (13) is fixedly connected to the plurality of fixed columns (16). A groove (7) is provided on one side of the housing (6), one end of the connecting rod (13) slides through the groove (7) and is disposed on the outside of the housing (6), and a slider (9) is fixedly connected to one end of the connecting rod (13). An upwardly extending fixed rod (8) is fixedly connected to the housing (6) on both sides of the groove (7). The outer wall of one end of the slider (9) is slidably attached to the fixed rod (8). The top of the fixed column (16) is fixedly connected to the fixed plate (15). Several telescopic rods (18) are slidably connected to the fixed plate (15) and are distributed at equal intervals. The bottom of the telescopic rod (18) is fixedly connected to the reset spring (19) for resetting. The cam (14) is rotatably connected inside the housing (6). The top of the cam (14) is attached to the bottom of the filter plate (11). The fixed column (16) is fixedly connected to one end of the fixed spring for resetting.

2. The slag ultrafine grinding equipment with circulating grinding function according to claim 1, characterized in that: The top of the telescopic rod (18) is frustum-shaped, and a roller (17) rotates on the top of the telescopic rod (18).

3. The slag ultrafine grinding equipment with circulating grinding function according to claim 1, characterized in that: A sealing plate (12) is slidably connected to the connecting rod (13), and the sealing plate (12) is slidably disposed in the slide groove (7).

4. The slag ultrafine grinding equipment with circulating grinding function according to claim 1, characterized in that: The housing (6) is equipped with two sets of powder wheels (4). The bottom of each set of powder wheels (4) is equipped with a corresponding anti-clogging circulation component. The top of each set of powder wheels (4) is equipped with a graded feeding funnel (5) that connects to the graded feeding auger (1).

5. The slag ultrafine grinding equipment with circulating grinding function according to claim 1, characterized in that: An activated carbon plate is fixedly connected to the inner wall of the shell (6).

6. The slag ultrafine grinding equipment with circulating grinding function according to claim 1, characterized in that: The outer wall of the connecting rod (13) can be completely fitted with the inner wall of the groove (7).

7. The slag ultrafine grinding equipment with circulating grinding function according to claim 1, characterized in that: The housing (6) has an opening on one side for the feeding rack (10) to slide upwards, and one end of the feeding rack (10) is attached to the outer wall of the graded feeding auger (1).

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