Raw material and steel slag solid waste mixing device

Abstract

The utility model discloses a raw material and steel slag solid waste mixing device which comprises a mixing device body, a first screening assembly and a second screening assembly, the mixing device body comprises a shell, a rotating shaft is rotatably connected in the shell, a plurality of first stirring impellers are installed on the side wall of the rotating shaft, and an upper cover plate is connected to the upper cover of the shell in a covering mode; the first screening assembly comprises a screening plate, the screening plate is detachably installed in the shell, a plurality of screening holes are formed in the screening plate, and a plurality of first magnetic attraction rings are fixedly connected to the bottom of the screening plate. The two screening assemblies are arranged, the first screening assembly is used for filtering iron metal in raw materials and steel slag solid waste, the second screening assembly is used for filtering particles with large particle sizes in the raw materials and the steel slag solid waste, and therefore the iron metal in the raw materials and the steel slag solid waste and large particle materials are mixed after being filtered; and the quality of the produced cement is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of cement production, and in particular relates to a device for mixing raw materials and steel slag solid waste. Background Art

[0002] Steel slag, a type of industrial solid waste generated during steel production, contains components such as SiO2, CaO, MgO, and Al2O3, and possesses high hardness and compressive strength. In cement production, steel slag can be used as an auxiliary material to improve the physical and chemical properties of cement, enhancing its strength and durability. Furthermore, steel slag can reduce cement production costs, conserve raw materials, and minimize environmental pollution.

[0003] When using steel slag as solid waste in cement production, the crushed and ground steel slag must be mixed with raw meal in a mixing device and then fed into a cement kiln for calcination. To ensure a uniform mixture of the steel slag and raw meal, a motor is usually used to drive a stirring impeller for mixing. However, existing mixing devices are unable to process the iron metal in the steel slag and cannot screen out large particles of material, thus affecting the quality of the produced cement.

[0004] The information disclosed in this background technology section is only intended to increase the understanding of the overall background of the present invention, and should not be regarded as an admission or any form of suggestion that the information constitutes the prior art already known to those skilled in the art. Utility Model Content

[0005] The purpose of the utility model is to provide a raw material and steel slag solid waste mixing device, which can solve the problem that the mixing device cannot screen the iron metal and large particle materials in the steel slag solid waste, resulting in poor quality of produced cement.

[0006] In order to achieve the above-mentioned purpose, the technical solution provided by a specific embodiment of the present invention is as follows:

[0007] A device for mixing raw meal and steel slag solid waste, comprising:

[0008] The mixing device comprises a housing for mixing the raw meal with the slag solid waste. A rotating shaft is rotatably connected within the housing, and a plurality of first stirring impellers are mounted on the sidewalls of the rotating shaft. Rotation of the rotating shaft drives the first stirring impellers to stir and mix the raw meal and the slag solid waste. The housing is covered with an upper cover plate, which is detachably mounted on the housing.

[0009] The first screening assembly includes a screening plate, which is removably mounted within the housing, allowing for easy removal from the housing once installed. The screening plate is provided with a plurality of sieve holes, allowing material on the screening plate to pass through the sieve holes for screening. A plurality of first magnetic rings are fixedly connected to the bottom of the screening plate, each of which is positioned directly below the sieve holes. To filter out ferrous metals from a mixture of raw material and steel slag solid waste when the screening plate is used to screen the mixture, the first magnetic rings are fixedly connected to the bottom of the screening plate. After screening the material through the screening plate, the material passes through the first magnetic rings, which then absorb the ferrous metals in the mixture. The first magnetic rings are positioned directly below the sieve holes, separating the material after passing through the sieve holes and allowing it to flow downward from both sides of the first magnetic rings. This allows the mixture to effectively contact the first magnetic rings, thereby improving the filtration of ferrous metals from the mixture. It's important to note that the mixture is ground to extremely small particles, and the sieve apertures are relatively large. Therefore, a first magnetic ring is placed at the bottom of the sieve aperture to ensure that the material does not flow downward through the sieve aperture. A second magnetic ring is fixedly attached to the bottom of the first magnetic ring, ensuring that the material passes through the second magnetic ring as it flows downward through both sides of the first magnetic ring, further filtering the iron in the mixture. The sieve plate is easily removable within the housing, making it easy to clean any iron adsorbed on the first and second magnetic rings.

[0010] The second screening assembly includes a screen that is used to re-screen the mixture of raw meal and steel slag solid waste to remove larger particles from the mixture. The screen is movably mounted within the housing. The movement of the screen within the housing facilitates clearing of any mixture that becomes clogged within the screen.

[0011] In one or more embodiments of the present invention, a motor is mounted at the lower end of the rotating shaft to drive the rotating shaft to rotate. A discharge port is provided on the lower side of the side wall of the housing, through which the screened raw material and steel slag solid waste are discharged from the housing.

[0012] In one or more embodiments of the present invention, the upper cover is provided with a feed port through which raw material and steel slag solid waste are added to the housing. A plurality of magnetic plates are fixedly connected to the inner sidewall of the feed port, so that as the raw material and steel slag solid waste flow through the feed port, the magnetic plates can absorb the iron metal in the raw material and steel slag solid waste.

[0013] In one or more embodiments of the present invention, a first bearing is installed at the center of the screen plate, and a driven shaft is installed in the first bearing in a penetrating manner.

[0014] In one or more embodiments of the present invention, a pair of second stirring impellers are mounted on the side wall of the driven shaft above the screening plate, such that rotation of the driven shaft drives the second stirring impellers to rotate, thereby improving the screening efficiency of the screening plate for raw meal and steel slag solid waste. A sleeve rod is fixedly connected to the lower end of the driven shaft.

[0015] In one or more embodiments of the present invention, the upper end of the rotating shaft is fixedly connected with a snap-fit ​​groove, and the lower end of the sleeve rod is sleeved in the snap-fit ​​groove. The rotation of the rotating shaft drives the snap-fit ​​groove to rotate, and the rotation of the snap-fit ​​groove can drive the sleeve rod to rotate, thereby driving the driven shaft to rotate. The sleeve rod and the snap-fit ​​groove are sleeved together to facilitate disassembly and assembly between them, thereby making it easy to remove the screening plate from the shell.

[0016] In one or more embodiments of the present invention, a support ring is fixedly connected to the inner side wall of the shell, and the screen plate is placed on the support ring. The support ring ensures that the screen plate is stable when installed in the shell.

[0017] In one or more embodiments of the present invention, a plurality of oscillation springs are mounted on the bottom of the screen, a plurality of mounting plates are fixedly connected to the inner sidewall of the housing, and the lower ends of the plurality of oscillation springs are respectively mounted on the plurality of mounting plates. When material falls on the screen, the screen compresses the oscillation springs, allowing the screen to move downward. When the mixed material on the screen is screened, the oscillation springs drive the screen upward under the action of their own elastic force, thereby causing the screen to continuously move up and down, so that the screen can vibrate due to changes in the gravity of the material through the oscillation springs, thereby improving the screen's effectiveness in screening the material.

[0018] In one or more embodiments of the present invention, a second bearing is installed at the center of the screen, and the rotating shaft is installed in the second bearing in a penetrating manner, so that the installation of the screen does not affect the rotation of the screen.

[0019] In one or more embodiments of the present invention, a first discharge port and a second discharge port are provided on the side wall of the housing, wherein the bottom of the first discharge port is flush with the upper surface of the screen plate, and the material intercepted on the screen plate is discharged through the first discharge port. The bottom of the second discharge port is flush with the upper surface of the screen, and the material intercepted on the screen is discharged through the second discharge port.

[0020] Compared with the prior art, the utility model is provided with two groups of screening components. The first screening component is used to filter the iron metal in the raw meal and steel slag solid waste, and the second screening component is used to filter the larger particle size particles in the raw meal and steel slag solid waste. The iron metal and larger particle materials in the raw meal and steel slag solid waste are filtered and then mixed, thereby improving the quality of the produced cement. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] 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 recorded in the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0022] Figure 1 This is a front view of a device for mixing raw material and steel slag solid waste in one embodiment of the present utility model;

[0023] Figure 2 This is a three-dimensional diagram of a raw material and steel slag solid waste mixing device in one embodiment of the utility model;

[0024] Figure 3 This is a cross-sectional view of a device for mixing raw material and steel slag solid waste in one embodiment of the present utility model;

[0025] Figure 4 This is a cross-sectional view of a raw material and steel slag solid waste mixing device in one embodiment of the utility model;

[0026] Figure 5 In one embodiment of the present utility model Figure 4 Enlarged view of point A in the middle;

[0027] Figure 6 In one embodiment of the present utility model Figure 4 Enlarged view of point B in the middle;

[0028] Figure 7 This is an exploded view of the rotating shaft and the driven shaft in one embodiment of the present invention.

[0029] Description of main reference numerals:

[0030] 1-mixing device body, 11-housing, 12-rotating shaft, 13-first stirring impeller, 14-motor, 15-upper cover, 16-feed port, 17-magnetic plate, 18-discharge port, 2-first screening assembly, 21-screen plate, 22-sieve hole, 23-first magnetic ring, 24-second magnetic ring, 25-driven shaft, 26-second stirring impeller, 27-first bearing, 28-sleeve rod, 29-clamping groove, 210-support ring, 211-first discharge port, 3-second screening assembly, 31-screen, 32-third stirring impeller, 33-oscillation spring, 34-mounting plate, 35-second bearing, 36-second discharge port. DETAILED DESCRIPTION

[0031] In order to enable those skilled in the art to better understand the technical solutions of the present invention, the following will be combined with the drawings of the embodiments of the present invention to clearly and completely describe the technical solutions of 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 should fall within the scope of protection of the present invention.

[0032] like Figures 1 to 4 As shown, a raw material and steel slag solid waste mixing device in one embodiment of the present invention includes a mixing device body 1, a first screening component 2 and a second screening component 3.

[0033] like Figures 1 to 4 As shown, the mixing device body 1 includes a housing 11, which is used to mix the raw meal with the steel slag solid waste. A rotating shaft 12 is rotatably connected within the housing 11. Multiple first stirring impellers 13 are mounted on the sidewalls of the rotating shaft 12. Rotation of the rotating shaft 12 drives the first stirring impellers 13 to stir and mix the raw meal and the steel slag solid waste. The housing 11 is covered with an upper cover plate 15, which is detachably mounted on the housing 11.

[0034] like Figures 1 to 4 As shown, a motor 14 is mounted at the lower end of the rotating shaft 12 to drive the rotating shaft 12 to rotate. A discharge port 18 is provided on the lower side of the side wall of the housing 11, through which the raw material and slag solid waste after screening are discharged from the housing 11.

[0035] like Figures 1 to 4 As shown, a feed port 16 is mounted on the upper cover 15, through which raw material and steel slag solid waste are added into the housing 11. A plurality of magnetic plates 17 are fixedly connected to the inner sidewall of the feed port 16, so that when the raw material and steel slag solid waste flow in the feed port 16, the magnetic plates 17 can absorb the iron metal in the raw material and steel slag solid waste.

[0036] like Figures 3 to 5As shown, the first screening assembly 2 includes a screening plate 21, which is detachably mounted in the housing 11 so that the screening plate 21 can be easily removed from the housing 11 when mounted in the housing 11. A plurality of sieve holes 22 are provided on the screening plate 21 so that the material on the screening plate 21 can be screened through the sieve holes 22. A plurality of first magnetic rings 23 are fixedly connected to the bottom of the screening plate 21, and the plurality of first magnetic rings 23 are respectively arranged directly below the plurality of sieve holes 22. In order to filter out the iron metal in the mixture when screening the mixture of raw material and steel slag solid waste through the screening plate 21, a first magnetic ring 23 is fixedly connected to the bottom of the screening plate 21 so that the material will pass through the first magnetic ring 23 after being screened by the screening plate 21, and the first magnetic ring 23 can absorb the iron metal in the mixture. At the same time, the first magnetic ring 23 is positioned directly below the sieve aperture 22. After passing through the sieve aperture 22, the material is separated by the first magnetic ring 23 and flows downward from both sides of the first magnetic ring 23. This allows the mixture to effectively contact the first magnetic ring 23, thereby improving the filtration effect of iron metal in the mixture. It should be noted that the mixture is ground into extremely small particles, and the sieve aperture 22 has a relatively large aperture. Therefore, the placement of the first magnetic ring 23 at the bottom of the sieve aperture 22 does not affect the downward flow of the material through the sieve aperture 22. A second magnetic ring 24 is fixedly connected to the bottom of the first magnetic ring 23. As the material flows downward through both sides of the first magnetic ring 23, it passes through the second magnetic ring 24, further filtering the iron metal in the mixture. The sieve plate 21 is easily removable within the housing 11, making it easy to clean the iron metal adsorbed on the first and second magnetic rings 23 and 24.

[0037] like Figure 5 As shown, a first bearing 27 is installed at the center of the screening plate 21 , and a driven shaft 25 is installed in the first bearing 27 in a penetrating manner.

[0038] like Figures 3 to 5 、 Figure 7 As shown, a pair of second stirring impellers 26 are mounted on the sidewall of the driven shaft 25 above the screening plate 21. Rotation of the driven shaft 25 drives the second stirring impellers 26 to rotate, which improves the screening efficiency of the screening plate 21 for raw meal and slag solid waste. A sleeve rod 28 is fixedly connected to the lower end of the driven shaft 25.

[0039] like Figure 5 and Figure 7As shown, the upper end of the rotating shaft 12 is fixedly connected with a snap-fit ​​groove 29, and the lower end of the sleeve rod 28 is sleeved in the snap-fit ​​groove 29. The rotation of the rotating shaft 12 drives the snap-fit ​​groove 29 to rotate, and the rotation of the snap-fit ​​groove 29 can drive the sleeve rod 28 to rotate, thereby driving the driven shaft 25 to rotate. The sleeve rod 28 and the snap-fit ​​groove 29 are sleeved together, making it easy to disassemble and assemble each other, so that the screening plate 21 is easy to remove from the shell 11.

[0040] like Figure 4 As shown, a support ring 210 is fixedly connected to the inner wall of the shell 11 , and the screen plate 21 is placed on the support ring 210 . The support ring 210 ensures that the screen plate 21 is stable when installed in the shell 11 .

[0041] like Figures 3 to 5 As shown, the second screening assembly 3 includes a screen 31, which is used to screen the mixture of raw meal and steel slag solid waste again to remove larger particles in the mixture. The screen 31 is movably mounted within the housing 11. The movement of the screen 31 within the housing 11 facilitates cleaning if the mixture becomes clogged in the screen 31.

[0042] like Figure 6 As shown, a plurality of oscillation springs 33 are mounted on the bottom of the screen 31, and a plurality of mounting plates 34 are fixedly connected to the inner side wall of the housing 11. The lower ends of the plurality of oscillation springs 33 are respectively mounted on the plurality of mounting plates 34. When material falls on the screen 31, the screen 31 compresses the oscillation springs 33, allowing the screen 31 to move downward. After the mixed material on the screen 31 is screened, the oscillation springs 33 will drive the screen 31 upward under the action of their own elastic force, thereby causing the screen 31 to move up and down continuously. The screen 31 can be driven to vibrate by the oscillation springs 33 under the change of the gravity of the material, thereby improving the screening effect of the screen 31 on the material while preventing particles from being blocked in the screen 31.

[0043] like Figure 5 As shown, a second bearing 35 is installed at the center of the screen 31 , and the rotating shaft 12 is installed in the second bearing 35 in a penetrating manner, so that the installation of the screen 31 does not affect the rotation of the screen 31 .

[0044] like Figures 2 to 4 As shown, a first discharge port 211 and a second discharge port 36 are provided on the side wall of the housing 11. The bottom of the first discharge port 211 is flush with the upper surface of the screen plate 21, and the material intercepted on the screen plate 21 is discharged through the first discharge port 211. The bottom of the second discharge port 36 is flush with the upper surface of the screen 31, and the material intercepted on the screen 31 is discharged through the second discharge port 36.

[0045] During use, raw material and steel slag solid waste are added into the shell 11 through the feed port 16. When the raw material and steel slag solid waste flow in the feed port 16, the magnetic plate 17 will filter the iron metal in the raw material and steel slag solid waste. The raw material and steel slag solid waste entering the shell 11 are screened by the screening plate 21. During screening, the stirring of the second stirring impeller 26 is used to improve the screening efficiency of the screening plate 21. The material screened by the screening plate 21 will flow through both sides of the first magnetic ring 23, and the iron metal in the raw material and steel slag solid waste will be filtered again by the first magnetic ring 23 and the second magnetic ring 24; then the raw material and steel slag solid waste fall on the screen 31 for screening, so that the screen 31 screens out larger particles of material. During screening, the rotation of the third stirring impeller 32 is used to improve the screening efficiency of the screen 31; the material screened by the screen 31 is stirred and mixed uniformly at the bottom of the shell 11 by the first stirring impeller 13 and then discharged through the discharge port 18.

[0046] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

[0047] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A device for mixing raw material and steel slag solid waste, characterized in that: include: The mixing device body includes a housing, a rotating shaft is rotatably connected in the housing, a plurality of first stirring impellers are mounted on the side wall of the rotating shaft, and an upper cover plate is connected to the upper cover of the housing; A first screening assembly includes a screening plate, the screening plate being detachably mounted in the housing, the screening plate being provided with a plurality of screening holes, a plurality of first magnetic rings being fixedly connected to the bottom of the screening plate, the plurality of first magnetic rings being respectively disposed directly below the plurality of screening holes, and a second magnetic ring being fixedly connected to the bottom of each of the first magnetic rings; The second screening assembly includes a screen, and the screen is movably installed in the housing.

2. The device for mixing raw meal and steel slag solid waste according to claim 1, characterized in that: A motor is installed at the lower end of the rotating shaft, and a discharge port is provided on the lower side of the side wall of the shell.

3. The device for mixing raw meal and steel slag solid waste according to claim 1, characterized in that: A feed port is installed on the upper cover plate, and a plurality of magnetic plates are fixedly connected to the inner side wall of the feed port.

4. The device for mixing raw meal and steel slag solid waste according to claim 1, characterized in that: A first bearing is installed at the center of the screening plate, and a driven shaft is installed in the first bearing in a penetrating manner.

5. The device for mixing raw meal and steel slag solid waste according to claim 4, characterized in that: A pair of second stirring impellers are installed on the side wall of the driven shaft located above the screening plate, and a sleeve rod is fixedly connected to the lower end of the driven shaft.

6. The device for mixing raw meal and steel slag solid waste according to claim 5, characterized in that: The upper end of the rotating shaft is fixedly connected with a clamping groove, and the lower end of the sleeve rod is sleeved in the clamping groove.

7. The device for mixing raw meal and steel slag solid waste according to claim 1, characterized in that: A support ring is fixedly connected to the inner side wall of the shell, and the screen plate is placed on the support ring.

8. The device for mixing raw meal and steel slag solid waste according to claim 1, characterized in that: A plurality of oscillation springs are installed at the bottom of the screen, a plurality of mounting plates are fixedly connected to the inner side wall of the shell, and the lower ends of the plurality of oscillation springs are respectively installed on the plurality of mounting plates.

9. The device for mixing raw meal and steel slag solid waste according to claim 8, characterized in that: A second bearing is installed at the center of the screen, and the rotating shaft is installed in the second bearing in a penetrating manner.

10. The device for mixing raw meal and steel slag solid waste according to claim 1, characterized in that: A first discharge port and a second discharge port are provided on the side wall of the shell. The bottom of the first discharge port is flush with the upper surface of the screening plate, and the bottom of the second discharge port is flush with the upper surface of the screen.

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