Slag iron graphite separation and purification equipment and method

Abstract

The invention discloses slag iron graphite separation and purification equipment and method.The slag iron graphite separation and purification equipment comprises a slag iron smashing mechanism, a high-temperature calcination mechanism and a screening mechanism, the slag iron smashing mechanism comprises a smashing box, a first smashing assembly and a second smashing assembly, a feeding hopper is installed on the upper end face of the smashing box, and the first smashing assembly and the second smashing assembly are installed in the smashing box; the conveying mechanism is arranged below the smashing box, the high-temperature calcination mechanism is installed on one side of the conveying mechanism, and the screening mechanism is installed below the high-temperature calcination mechanism. The device is novel in structural design, convenient to operate, capable of achieving uniform smashing, calcination and screening of slag iron and effectively removing impurities in the slag iron, and high in graphite purification precision.

Description

Technical Field

[0001] The invention relates to the technical field of slag iron graphite separation, and in particular to a slag iron graphite separation and purification device and method. Background Art

[0002] In steel production, a large amount of desulfurization slag is produced during the desulfurization process of molten iron, referred to as slag iron; slag iron contains flake graphite, which is easy to disperse and cause environmental pollution. Background technology Strong acid is often used for recycling, which pollutes the environment.

[0003] At present, the separation and purification of slag iron graphite generally adopts flotation agent for flotation purification, and its purification process is cumbersome, and the purity of the purified graphite is low. Therefore, it is necessary to design a slag iron graphite separation and purification equipment. Summary of the invention

[0004] The object of the present invention is to provide a slag iron graphite separation and purification device and method to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a slag iron graphite separation and purification device, comprising a slag iron crushing mechanism, a high-temperature calcination mechanism and a screening mechanism, the slag iron crushing mechanism comprising a crushing box, the first crushing assembly and the second crushing assembly, a feed hopper is installed on the upper end surface of the crushing box, the first crushing assembly and the second crushing assembly are respectively installed in the crushing box, a conveying mechanism is arranged below the crushing box, the high-temperature calcination mechanism is installed on one side of the conveying mechanism, and the screening mechanism is installed below the high-temperature calcination mechanism.

[0006] Preferably, the present application provides a slag iron graphite separation and purification equipment, wherein the first crushing assembly and the second crushing assembly have exactly the same structure, including a rotating shaft, a servo motor and a plurality of crushing blades, the rotating shaft is transversely installed in a crushing box, the servo motor is installed on the outer wall of the crushing box, and a plurality of crushing blades are installed on the outside of the rotating shaft at equal intervals, and the crushing blades on the first crushing assembly are staggered with the crushing blades in the second crushing assembly.

[0007] Preferably, the present application provides a slag iron graphite separation and purification equipment, wherein the high-temperature calcination mechanism includes a furnace shell, a furnace body and a mounting seat, the furnace shell is installed on the mounting seat, the furnace body is installed in the furnace shell, a feed bin is installed on the upper end face of the furnace shell, a feed port corresponding to the position of the feed bin is provided on the furnace body, a rotating shaft is installed in the middle of the outer side surface of the furnace body, the rotating shaft is drivingly connected to the motor shaft of a rotating motor, the rotating motor is installed on the mounting seat, and a discharge port is also provided at the bottom of the furnace shell.

[0008] Preferably, the present application provides a slag iron graphite separation and purification equipment, wherein a plurality of high-temperature heating tubes are evenly distributed on the outer wall of the furnace body, the high-temperature heating tubes are electrically connected to an external temperature controller, and an insulation plate is also installed on the inner wall of the furnace shell.

[0009] Preferably, the present application provides a slag iron graphite separation and purification equipment, wherein the conveying mechanism includes a first conveying roller, a second conveying roller, a third conveying roller, a roller mounting frame and a conveyor belt, the first conveying roller, the second conveying roller and the third conveying roller are all mounted on the roller mounting frame, the conveyor belt is installed end to end on the outside of the first conveying roller, the second conveying roller and the third conveying roller, the feed end of the conveyor belt is below the discharge end of the crushing box, and the discharge end of the conveyor belt is above the feed bin.

[0010] Preferably, the present application provides a slag iron graphite separation and purification equipment, wherein the screening mechanism includes a screening box and a screening mesh assembly, the feed end of the screening box is located below the discharge port of the furnace shell, and the screening mesh assembly is installed in the screening box.

[0011] Preferably, the present application provides a slag iron graphite separation and purification equipment, wherein the screening assembly includes a mesh frame, a first mesh and a second mesh, the first mesh and the second mesh are respectively installed in the mesh frame, and the mesh aperture of the first mesh is larger than the mesh aperture of the second mesh.

[0012] Preferably, the present application provides a slag iron graphite separation and purification device, wherein the use method thereof comprises the following steps:

[0013] A. Put the slag into the crushing box, start the first crushing assembly and the second crushing assembly, and the two crushing assemblies crush the slag;

[0014] B. The crushed slag is discharged onto the conveyor belt below, which is controlled to convey the crushed slag to the top of the feed bin and put into the furnace;

[0015] C. Control the heating tube on the outer wall of the furnace body to heat the furnace body, so that the slag iron in the furnace body is heated, and the impurities contained in the slag iron are decomposed after being subjected to high temperature;

[0016] D. The decomposed products contain graphite and a small amount of impurities;

[0017] E. Control the rotating motor to work, the rotating motor drives the furnace body to rotate, and the product in the furnace body is discharged into the screening box through the discharge port;

[0018] F. The two groups of screens in the screening assembly screen the product, and high-purity graphite remains after screening.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] (1) The present invention has novel structural design and is easy to operate. It can achieve uniform crushing, calcination and screening of slag iron, effectively remove impurities in slag iron, and purify graphite with high precision.

[0021] (2) The two groups of crushing components used in the present invention can evenly crush the slag iron, which is convenient for subsequent high-temperature decomposition and screening treatment, and further improves the efficiency of graphite purification.

[0022] (3) The high-temperature calcination mechanism used in the present invention can calcine the crushed slag at high temperature, and can quickly decompose impurities at high temperature. Graphite is not easy to decompose after being exposed to high temperature, which is convenient for subsequent screening. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the structure of the present invention;

[0024] Figure 2 It is a schematic diagram of the structure of the transmission mechanism of the present invention;

[0025] Figure 3 It is a schematic diagram of the structure of the screening mechanism of the present invention;

[0026] Figure 4 It is the work flow chart of the present invention;

[0027] In the figure: a crushing box 1, a feed hopper 2, a rotating shaft 3, a servo motor 4, a crushing blade 5, a furnace shell 6, a furnace body 7, a mounting seat 8, a feed bin 9, a rotating shaft 10, a rotating motor 11, a high-temperature heating tube 12, a first conveying roller 13, a second conveying roller 14, a third conveying roller 15, a roller mounting frame 16, a conveyor belt 17, a screening box 18, a mesh frame 19, a first screen 20 and a second screen 21. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments 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 creative work are within the scope of protection of the present invention.

[0029] It should be noted that when an element is referred to as being "fixed on" or "set on" another element, it can be directly on the other element or indirectly set on the other element; when an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0030] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0031] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, "multiple" and "several" mean two or more, unless otherwise clearly and specifically defined.

[0032] It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the limiting conditions that can be implemented in this application, so they have no substantial technical significance. Any modification of the structure, change in the proportional relationship, or adjustment of the size should still fall within the scope of the technical content disclosed in this application without affecting the effects that can be produced by this application and the purposes that can be achieved. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and "one" quoted in this specification are only for the convenience of narration, and are not used to limit the scope of the implementation of this application. The change or adjustment of their relative relationship should also be regarded as the scope of the implementation of this application without substantial change in the technical content.

[0033] See also Figure 1-4The present invention provides a technical solution: a slag iron graphite separation and purification device, including a slag iron crushing mechanism, a high temperature calcining mechanism and a screening mechanism, the slag iron crushing mechanism includes a crushing box 1, a first crushing assembly and a second crushing assembly, the upper end surface of the crushing box 1 is equipped with a feed hopper 2, the first crushing assembly and the second crushing assembly are respectively installed in the crushing box 1, a conveying mechanism is arranged below the crushing box 1, the high temperature calcining mechanism is installed on one side of the conveying mechanism, and the screening mechanism is installed below the high temperature calcining mechanism; the first crushing assembly and the second crushing assembly have completely the same structure, including a rotating shaft 3, a servo motor 4 and a plurality of crushing blades 5, the rotating shaft 3 is transversely installed in the crushing box 1, the servo motor 4 is installed on the outer wall of the crushing box 1, and a plurality of crushing blades 5 are installed at equal intervals outside the rotating shaft 3, and the crushing blades on the first crushing assembly are staggered with the crushing blades in the second crushing assembly. The two groups of crushing assemblies used in the present invention can evenly crush the slag iron, facilitate subsequent high temperature decomposition and screening treatment, and further improve the efficiency of graphite purification.

[0034] In the present invention, the high temperature calcination mechanism comprises a furnace shell 6, a furnace body 7 and a mounting seat 8, the furnace shell 6 is mounted on the mounting seat 8, the furnace body 7 is mounted in the furnace shell 6, a feed bin 9 is mounted on the upper end surface of the furnace shell 6, a feed port corresponding to the position of the feed bin 9 is provided on the furnace body 7, a rotating shaft 10 is installed in the middle of the outer side surface of the furnace body 7, the rotating shaft 10 is connected to the motor shaft of the rotating motor 11 by transmission, the rotating motor 11 is mounted on the mounting seat 8, and a discharge port is also provided at the bottom of the furnace shell 6; a plurality of high temperature heating tubes 12 are evenly distributed on the outer wall of the furnace body 7, the high temperature heating tubes 12 are electrically connected to the external temperature controller, and a heat preservation plate is also installed on the inner side wall of the furnace shell 6. The high temperature calcination mechanism adopted by the present invention can perform high temperature calcination on the crushed slag iron, can quickly decompose impurities at high temperature, and graphite is not easy to decompose after being subjected to high temperature, which is convenient for subsequent screening.

[0035] In the present invention, the conveying mechanism includes a first conveying roller 13, a second conveying roller 14, a third conveying roller 15, a roller mounting frame 16 and a conveyor belt 17, wherein the first conveying roller 13, the second conveying roller 14 and the third conveying roller 15 are all mounted on the roller mounting frame 16, and the conveyor belt 17 is mounted end to end on the outside of the first conveying roller 13, the second conveying roller 14 and the third conveying roller 15, and the feeding end of the conveyor belt 17 is below the discharging end of the crushing box 1, and the discharging end of the conveyor belt 17 is above the feeding bin 9. The conveying mechanism can convey the crushed slag iron powder to the feeding bin, ensure that the slag iron powder evenly enters the furnace body, and improve the high temperature decomposition efficiency.

[0036] In addition, in the present invention, the screening mechanism includes a screening box 18 and a screening mesh assembly, the feed end of the screening box 18 is located below the discharge port of the furnace shell, and the screening mesh assembly is installed in the screening box 18; the screening mesh assembly includes a mesh frame 19, a first mesh 20 and a second mesh 21, the first mesh 20 and the second mesh 21 are respectively installed in the mesh frame 19, the mesh aperture of the first mesh 20 is larger than the mesh aperture of the second mesh 21, and the screening mechanism can screen the product after high-temperature calcination, thereby improving the graphite purification accuracy.

[0037] Working principle: The method of using the present invention comprises the following steps:

[0038] A. Put the slag into the crushing box, start the first crushing assembly and the second crushing assembly, and the two crushing assemblies crush the slag;

[0039] B. The crushed slag is discharged onto the conveyor belt below, which is controlled to convey the crushed slag to the top of the feed bin and put into the furnace;

[0040] C. Control the heating tube on the outer wall of the furnace body to heat the furnace body, so that the slag iron in the furnace body is heated, and the impurities contained in the slag iron are decomposed after being subjected to high temperature;

[0041] D. The decomposed products contain graphite and a small amount of impurities;

[0042] E. Control the rotating motor to work, the rotating motor drives the furnace body to rotate, and the product in the furnace body is discharged into the screening box through the discharge port;

[0043] F. The two groups of screens in the screening assembly screen the product, and high-purity graphite remains after screening.

[0044] In summary, the present invention has novel structural design, convenient operation, can realize uniform crushing, calcination and screening of slag iron, effectively remove impurities in slag iron, and purify graphite with high precision.

[0045] The circuits, electronic components and modules involved are all prior art and can be fully implemented by those skilled in the art. Needless to say, the content protected by the present invention does not involve improvements to software and methods.

[0046] It should also be noted that, in this specification, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "comprise", "include" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the statement "comprises a ..." does not exclude the presence of other identical elements in the process, method, article or device including the element.

Claims

1. A slag iron graphite separation and purification device, comprising a slag iron crushing mechanism, a high temperature calcination mechanism and a screening mechanism, characterized in that: The slag iron crushing mechanism comprises a crushing box (1), a first crushing assembly and a second crushing assembly. A feed hopper (2) is installed on the upper end surface of the crushing box (1). The first crushing assembly and the second crushing assembly are respectively installed in the crushing box (1). A conveying mechanism is arranged below the crushing box (1). The high-temperature calcining mechanism is installed on one side of the conveying mechanism. The screening mechanism is installed below the high-temperature calcining mechanism.

2. A slag iron graphite separation and purification equipment according to claim 1, characterized in that: The first pulverizing assembly and the second pulverizing assembly have completely the same structure, comprising a rotating shaft (3), a servo motor (4) and a plurality of pulverizing blades (5); the rotating shaft (3) is transversely mounted in the pulverizing box (1); the servo motor (4) is mounted on the outer wall of the pulverizing box (1); the plurality of pulverizing blades (5) are mounted at equal intervals outside the rotating shaft (3); and the pulverizing blades on the first pulverizing assembly and the pulverizing blades in the second pulverizing assembly are arranged alternately.

3. A slag iron graphite separation and purification equipment according to claim 1, characterized in that: The high-temperature calcining mechanism comprises a furnace shell (6), a furnace body (7) and a mounting seat (8); the furnace shell (6) is mounted on the mounting seat (8); the furnace body (7) is mounted in the furnace shell (6); a feed bin (9) is mounted on the upper end surface of the furnace shell (6); a feed port corresponding to the position of the feed bin (9) is provided on the furnace body (7); a rotating shaft (10) is installed in the middle of the outer side surface of the furnace body (7); the rotating shaft (10) is drivingly connected to the motor shaft of a rotating motor (11); the rotating motor (11) is mounted on the mounting seat (8); and a discharge port is also provided at the bottom of the furnace shell (6).

4. A slag iron graphite separation and purification equipment according to claim 3, characterized in that: A plurality of high-temperature heating tubes (12) are evenly distributed on the outer wall of the furnace body (7), and the high-temperature heating tubes (12) are electrically connected to an external temperature controller. A heat preservation plate is also installed on the inner wall of the furnace shell (6).

5. The slag iron graphite separation and purification equipment according to claim 1, characterized in that: The conveying mechanism comprises a first conveying roller (13), a second conveying roller (14), a third conveying roller (15), a roller mounting frame (16) and a conveyor belt (17); the first conveying roller (13), the second conveying roller (14) and the third conveying roller (15) are all mounted on the roller mounting frame (16); the conveyor belt (17) is mounted end to end on the outside of the first conveying roller (13), the second conveying roller (14) and the third conveying roller (15); the feeding end of the conveyor belt (17) is located below the discharging end of the crushing box (1), and the discharging end of the conveyor belt (17) is located above the feeding bin (9).

6. The slag iron graphite separation and purification equipment according to claim 1, characterized in that: The screening mechanism comprises a screening box (18) and a screening mesh assembly, wherein the feeding end of the screening box (18) is located below the discharge port of the furnace shell, and the screening mesh assembly is installed in the screening box (18).

7. A slag iron graphite separation and purification equipment according to claim 6, characterized in that: The screening assembly comprises a screen frame (19), a first screen (20) and a second screen (21); the first screen (20) and the second screen (21) are respectively installed in the screen frame (19); the mesh aperture of the first screen (20) is larger than the mesh aperture of the second screen (21).

8. A method for using the slag iron graphite separation and purification device according to claim 1, characterized in that: The method of use includes the following steps: A. Put the slag into the crushing box, start the first crushing assembly and the second crushing assembly, and the two crushing assemblies crush the slag; B. The crushed slag is discharged onto the conveyor belt below, which is controlled to convey the crushed slag to the top of the feed bin and put into the furnace; C. Control the heating tube on the outer wall of the furnace body to heat the furnace body, so that the slag iron in the furnace body is heated, and the impurities contained in the slag iron are decomposed after being subjected to high temperature; D. The decomposed products contain graphite and a small amount of impurities; E. Control the rotating motor to work, the rotating motor drives the furnace body to rotate, and the product in the furnace body is discharged into the screening box through the discharge port; F. The two groups of screens in the screening assembly screen the product, and high-purity graphite remains after screening.

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