Steel slag breaking device with screening function

Abstract

The utility model discloses a steel slag breaking device with a screening function. The technical problem of workload in the prior art is solved. The device comprises a device body, a crushing structure, a screening structure and a jacking structure. The device body comprises a working cavity and a feeding port which communicate with each other. The crushing structure comprises at least two crushing rollers, and the crushing rollers are arranged in the working cavity at intervals. The screening structure comprises a fence and a screen, the fence is arranged around the screen, and the screen is in sliding fit with the device body. The jacking structure comprises a fixing strip and a knocking block. The fixing strip is in sliding fit with the device body, and the moving direction of the fixing strip and the moving direction of the screen form an angle. The knocking block is installed on the fixing strip, and when the fixing strip moves towards the screen, the knocking block enables the screen to vibrate. According to the steel slag breaking device with the screening function, through integration of the breaking structure and the screening structure, integrated treatment of breaking and screening of steel slag is achieved, the treatment efficiency is improved, and the operation cost is reduced. And through the arrangement of the jacking structure, a jacking block is driven by movement of the screen to knock the screen, vibration is generated, and the screening efficiency is further improved.

Description

Technical Field

[0001] This application belongs to the field of crushing and screening technology, specifically relating to a steel slag crushing device with screening function. Background Technology

[0002] Steel slag is a byproduct of the steelmaking process. It is mainly composed of various oxides formed by the oxidation of impurities such as silicon, manganese, phosphorus, and sulfur in pig iron during the smelting process, as well as salts formed by the reaction of these oxides with solvents.

[0003] Publication No. CN216827115U discloses a steel slag pre-screening device for magnetic separation of steel slag. By setting up elastic support components, it can reciprocate and vibrate when the material impacts, avoiding material accumulation. By setting up crushing rollers, some of the steel slag is crushed as it passes through, saving subsequent repeated processing time. However, this patent still has the following problems in actual use:

[0004] After the steel slag is crushed, large pieces of steel slag will be discharged through a steel screen. When the large pieces of steel slag are discharged, they may block the screening port of the steel screen, causing some small pieces of steel slag to be discharged along with the large pieces. This means that not only do the large pieces of steel slag need to be processed separately, but the discharged small pieces of steel slag also need to be screened out, which increases the workload. Summary of the Invention

[0005] To solve the above-mentioned technical problems, this application provides a steel slag crushing device with screening function.

[0006] The technical solution adopted to achieve the purpose of this application is as follows: In the first aspect of this application, the present invention discloses a steel slag crushing device with screening function, comprising:

[0007] The device body includes a connected working chamber and a feed inlet;

[0008] A crushing structure, the crushing structure comprising at least two crushing rollers, each of the crushing rollers being arranged at intervals within the working chamber;

[0009] A screening structure, comprising a barrier and a screen, wherein the barrier is arranged around the screen and the screen is slidably engaged with the device body;

[0010] The impact structure includes a fixing strip and a striking block. The fixing strip is slidably engaged with the device body, and the moving direction of the fixing strip is set at an angle to the moving direction of the screen. The striking block is installed on the fixing strip, and when the fixing strip moves toward the screen, the striking block causes the screen to vibrate.

[0011] In some embodiments, the crushing structure further includes multiple motors, each motor corresponding to one of the multiple crushing rollers, and each motor being connected to the corresponding crushing roller via a drive shaft.

[0012] In some embodiments, the screening structure further includes a sliding rod, a disc, and a connecting assembly. The sliding rod is connected to the enclosure and is slidably engaged with the device body. The disc is rotatably engaged with the device body, and the axis of rotation of the disc is perpendicular to the sliding rod. The disc and the sliding rod are connected by the connecting assembly. When the disc rotates, the disc drives the sliding rod to move relative to the device body in a first direction through the connecting assembly.

[0013] In some embodiments, the connecting assembly includes a fixed plate and an extrusion block, the fixed plate being connected to the sliding rod, and the extrusion block being eccentrically disposed to the disk. When the disk rotates, the extrusion block pushes the fixed plate, the sliding rod, and the enclosure to move relative to the body along a first direction.

[0014] In some embodiments, the screening structure further includes a first elastic element, the two ends of which act on the enclosure and the device body respectively, and the first elastic element causes the enclosure to have a tendency to move in a second direction opposite to the first direction.

[0015] In some embodiments, the screening structure further includes a first bevel gear, a second bevel gear, and a belt. The first bevel gear is rotatably connected to the device body. The second bevel gear is mounted on the disc and meshes with the first bevel gear. One end of the belt is sleeved on the drive shaft of one of the motors, and the other end of the belt is sleeved on the rotating shaft of the first bevel gear. When the motor is working, the motor drives the first bevel gear to rotate through the belt.

[0016] In some embodiments, the impact structure further includes an impact block, a pressing block, and a second elastic member. The pressing block is mounted on the side of the screen facing the fixing strip, and the impact block is mounted on the fixing strip and located on the movement path of the pressing block. The two ends of the second elastic member act on the fixing strip and the device body, respectively. The second elastic member causes the fixing strip to tend to move toward the screen. When the screen moves, the pressing block pushes the fixing strip away from the screen through the impact block.

[0017] In some embodiments, the impact blocks are configured as a plurality of blocks, which are spaced apart along the fixing strip in a first direction; and / or

[0018] The extrusion blocks are configured in multiple ways, and the multiple extrusion blocks are spaced apart at the bottom of the screen along the first direction.

[0019] In some embodiments, the top-impact structure further includes a mounting plate and a mounting strip, the mounting plate being connected to the device body, the mounting strip being connected to the mounting plate, and the fixing strip being slidably connected to the mounting plate. The two ends of the second elastic member act on the mounting strip and the fixing strip respectively, and the second elastic member causes the fixing strip to have a tendency to move toward the screen.

[0020] In some embodiments, the impact block is trapezoidal, the width of the end of the impact block facing the screen is smaller than the width of the other end, and the end of the extrusion block away from the screen is provided with an inclined surface for cooperating with the impact block. The inclined surface is provided on both sides of the extrusion block along the first direction.

[0021] As can be seen from the above technical solution, the steel slag crushing device with screening function disclosed in this application includes a device body, a crushing structure, a screening structure, and a top-impact structure. The device body includes a connected working chamber and a feed inlet for accommodating the steel slag to be processed. The steel slag to be processed can be fed into the working chamber from the feed inlet. The crushing structure includes at least two crushing rollers, each arranged at intervals within the working chamber, for crushing the steel slag entering the working chamber. The screening structure includes a baffle and a screen. The baffle is arranged around the screen, and the screen slides in conjunction with the device body for screening the crushed steel slag. The top-impact structure includes a fixing bar and a striking block. The fixing bar slides in conjunction with the device body, and the direction of movement of the fixing bar is angled to the direction of movement of the screen. The striking block is installed on the fixing bar. When the fixing bar moves towards the screen, the striking block causes the screen to vibrate, thereby promoting the screening effect.

[0022] The steel slag crushing device with screening function disclosed in this embodiment integrates crushing and screening structures, realizing integrated crushing and screening of steel slag, improving processing efficiency and reducing operating costs. By setting up a top-impact structure, the movement of the screen drives the top-impact block to strike the screen, generating vibration, which further improves screening efficiency. Attached Figure Description

[0023] To enable those skilled in the art to more clearly understand this application, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0024] Figure 1 This is a front view schematic diagram of a steel slag crushing device with screening function in one or more embodiments of this application;

[0025] Figure 2 for Figure 1 A magnified view of a portion of point A in the middle;

[0026] Figure 3 for Figure 1 A schematic diagram of the rear view;

[0027] Figure 4 for Figure 1 A side view diagram;

[0028] Figure 5 for Figure 1 A schematic diagram of the connecting components.

[0029] Explanation of reference numerals in the attached figures:

[0030] 1-Purpose device body, 2-Crushing device, 201-Crushing roller, 202-Motor, 3-Screwing structure, 301-Belt, 302-Connecting plate, 303-Second bevel gear, 304-Rotating rod, 305-First bevel gear, 306-Disc, 307-Extrusion block, 308-Sliding rod, 309-Fixing plate, 310-Screen, 311-Enclosure, 312-Fixing block, 313-Mounting block, 314-First elastic element, 315-First telescopic rod, 4-Impact structure, 401-Mounting plate, 402-Mounting strip, 403-Second elastic element, 404-Second telescopic rod, 405-Fixing strip, 406-Impact block, 407-Extrusion block, 408-Striking block. Detailed Implementation

[0031] To enable those skilled in the art to more clearly understand this application, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0032] Furthermore, reference numerals and / or reference letters may be repeated in different examples in this application. Such repetition is for simplification and clarity purposes and does not in itself indicate a relationship between the various embodiments and / or settings discussed. In addition, this application provides examples of various specific processes and materials; however, those skilled in the art will recognize the application of other processes and / or the use of other materials.

[0033] It should be noted that, unless otherwise specified, the embodiments and features described in the present invention can be combined with each other.

[0034] Existing steel slag processing equipment requires multiple devices to operate in conjunction, which not only increases investment costs but also reduces processing efficiency. This application discloses a steel slag crushing device with screening function, which solves the technical problem of high workload caused by the need to separately screen large and small pieces of steel slag in existing technologies, thereby improving screening efficiency.

[0035] The technical solution of this application will be described in detail below through specific embodiments:

[0036] See Figure 1 , Figure 3 and Figure 4 In a first aspect embodiment of this application, a steel slag crushing device with screening function is provided, comprising a device body 1, a crushing structure, a screening structure 3, and a top-impact structure 4. The device body 1 includes a connected working chamber and a feed inlet for accommodating steel slag to be processed, which can be fed into the working chamber from the feed inlet. The crushing structure includes at least two crushing rollers 201, each arranged at intervals within the working chamber for crushing the steel slag entering the working chamber. The screening structure 3 includes a baffle 311 and a screen 310, the baffle 311 surrounding the screen 310, the screen 310 slidingly engaging with the device body 1 for screening the crushed steel slag. The top-impact structure 4 includes a fixing bar 405 and a striking block 408. The fixing bar 405 slides with the device body 1, and the moving direction of the fixing bar 405 is angled to the moving direction of the screen 310. The striking block 408 is installed on the fixing strip 405. When the fixing strip 405 moves toward the screen 310, the striking block 408 causes the screen 310 to vibrate, thereby promoting the screening effect.

[0037] The steel slag crushing device with screening function disclosed in this embodiment integrates the crushing structure and the screening structure 3, realizing integrated crushing and screening of steel slag, improving processing efficiency and reducing operating costs. By setting the top-impact structure 4, the movement of the screen 310 drives the top-impact block 406 to strike the screen 310, generating vibration, which further improves the screening efficiency.

[0038] Among them, the number of crushing rollers 201 in the crushing structure can be set according to actual needs, but there should be at least two. The surface of the crushing roller 201 can be provided with raised crushing teeth to enhance the crushing effect. The screen mesh 310 in the screening structure 3 can be selected with different materials and specifications according to actual needs to meet different screening requirements. The shape and structure of the enclosure 311 can be designed according to the shape and size of the screen mesh 310, but it should be ensured that the screen mesh 310 can be firmly fixed and prevent the leakage of steel slag. The sliding fit mode between the screen mesh 310 and the device body 1 can adopt structures such as slide rails or rollers to ensure that the screen mesh 310 can move smoothly within the device body 1. The fixed bar 405 in the top impact structure 4 can be set as a structure that slides配合 with the device body 1, such as a slide rail or a chute. The knocking block 408 can be set as a structure perpendicular or inclined to the fixed bar 405 so that when the fixed bar 405 moves, it can knock on the screen mesh 310. The moving direction of the fixed bar 405 can be set at an angle such as a right angle or an oblique angle to the moving direction of the screen mesh 310 to ensure that the knocking block 408 can effectively knock on the screen mesh 310 and make it vibrate.

[0039] In some embodiments, the crushing structure further includes a plurality of motors 202. The plurality of motors 202 are arranged in one-to-one correspondence with the plurality of crushing rollers 201, and each motor 202 is传动连接 to the corresponding crushing roller 201 through a transmission shaft. By arranging the plurality of motors 202 in one-to-one correspondence with the plurality of crushing rollers 201, sufficient power is provided for the crushing rollers 201, and the crushing efficiency is improved.

[0040] Driving each crushing roller 201 separately through a separate motor 202 is only one implementation manner in this embodiment. In other implementation manners, only one motor 202 can also be provided, and this motor 202 can directly drive a plurality of crushing rollers 201 to rotate simultaneously through a gear set or other structures.

[0041] In some embodiments, the screening structure 3 further includes a sliding rod 308, a disc 306 and a connecting component. The sliding rod 308 is connected to the enclosure 311, and the sliding rod 308 is滑动配合 with the device body 1. The disc 306 is转动配合 with the device body 1, and the rotation axis of the disc 306 is perpendicular to the sliding rod 308. The disc 306 and the sliding rod 308 are connected through a connecting component. When the disc 306 rotates, the disc 306带动 the sliding rod 308 to move relative to the device body 1 in the first direction through the connecting component. The connecting component can be a transmission element such as a connecting rod, a chain, a belt 301, etc., which is used to convert the rotation of the disc 306 into the linear movement of the sliding rod 308.

[0042] It should be noted that in this embodiment, Figure 1 the horizontal left direction in Figure 1 is taken as the first direction, and the horizontal right direction in

[0043] See Figure 1 , Figure 4 and Figure 5 In some embodiments, the connecting assembly includes a fixed plate 309 and an extrusion block 307. The fixed plate 309 is connected to a sliding rod 308, and the extrusion block 307 is eccentrically positioned with respect to the disc 306. When the disc 306 rotates, the extrusion block 307 periodically contacts and pushes the fixed plate 309, thereby causing the sliding rod 308, the screen 310, and the retaining wall 311 to move relative to the main body along a first direction. This design allows the screen 310 to move periodically during the rotation of the disc 306, thus achieving the screening function. By setting up a screening structure 3 driving mechanism composed of the disc 306, sliding rod 308, fixed plate 309, and extrusion block 307, the smooth movement of the screen 310 and the automation of the screening process are achieved.

[0044] The connecting assembly, including the fixing plate 309 and the pressing block 307, is only one embodiment of this example. In other embodiments, the connecting assembly may include a connecting rod and the pressing block 307. The two ends of the connecting rod are rotatably connected to the sliding rod 308 and the pressing block 307 respectively to form a crank-slider structure. In this case, when the disc 306 rotates, the screen 310 can also be driven to move back and forth by the sliding rod 308.

[0045] In another embodiment, a limiting groove can be provided on the fixed plate 309, which is parallel to the plate surface of the disc 306 and perpendicular to the moving direction of the sliding rod 308. The extrusion block 307 is installed in the limiting groove. When the disc 306 rotates, the screen 310 can also be driven to move back and forth by the sliding rod 308.

[0046] See Figure 1 and Figure 2 In some embodiments, when the connecting assembly is configured to cooperate between the fixed plate 309 and the extrusion block 307, the screening structure 3 further includes a first elastic member 314. The two ends of the first elastic member 314 act on the enclosure 311 and the device body 1, respectively. The first elastic member 314 causes the enclosure 311 to tend to move in a second direction opposite to the first direction. By configuring the first elastic member 314 to cooperate with the fixed plate 309 and the extrusion block 307, when the extrusion block 307 moves away from the fixed plate 309, the first elastic member 314 can push the screen 310 to cause the fixed plate 309 to also move in the second direction. This allows the extrusion block 307 to push the fixed plate 309 towards the first direction next time, thereby achieving the periodic reciprocating motion of the screen 310, and ultimately realizing the smooth movement of the screen 310 and the automation of the screening process.

[0047] In some embodiments, to facilitate and stabilize the installation of the first elastic member 314, the screening structure 3 further includes a fixing block 312 and a mounting block 313. The fixing block 312 is installed on the side of the screen 310 away from the sliding rod 308, and the mounting block 313 is installed on the device body 1, with the mounting block 313 and the fixing block 312 positioned opposite each other. The two ends of the first elastic member 314 act on the fixing block 312 and the mounting block 313 respectively, and the first elastic member 314 pushes the screen 310 to move in the first direction through the fixing block 312.

[0048] The fixing block 312 is designed to be installed on the side of the screen 310 opposite to the sliding rod 308, while the mounting block 313 is correspondingly installed on the device body 1, with the two arranged opposite each other. This layout allows the first elastic element 314 to be easily clamped between the fixing block 312 and the mounting block 313 during installation, without the need for complex positioning or adjustment steps. Guided by the fixing block 312 and the mounting block 313, the first elastic element 314 can be quickly and accurately positioned to its proper position, thereby greatly simplifying the installation process and improving work efficiency. The fixing block 312 and the mounting block 313 not only provide a stable support point for the first elastic element 314, but also, through their interaction, effectively prevent the first elastic element 314 from loosening or falling off during vibration or long-term use.

[0049] In some embodiments, the screening structure 3 further includes a first telescopic rod 315, the two ends of which are connected to a fixed block 312 and a mounting block 313, respectively. The connection of the two ends of the first telescopic rod 315 to the fixed block 312 and the mounting block 313 forms a stable support structure. This design helps reduce the swaying and displacement of the screen 310 during vibration, thereby ensuring the accuracy and continuity of screening. By adjusting the length of the first telescopic rod 315, the tension and position of the screen 310 can be further fine-tuned to adapt to different screening requirements and working environments.

[0050] See Figure 3 and Figure 4 In some embodiments, the screening structure 3 further includes a first bevel gear 305, a second bevel gear 303, and a belt 301. The first bevel gear 305 is rotatably connected to the device body 1. The second bevel gear 303 is mounted on the disc 306 and meshes with the first bevel gear 305. One end of the belt 301 is sleeved on the drive shaft of one of the motors 202, and the other end of the belt 301 is sleeved on the rotating shaft of the first bevel gear 305. When the motor 202 is working, the motor 202 drives the first bevel gear 305 to rotate via the belt 301.

[0051] The power of the motor 202 can be transmitted to the disk 306 via the first bevel gear 305, the second bevel gear 303, and the belt 301, so that the rotation of the disk 306 does not require additional power. The arrangement of the first bevel gear 305 and the second bevel gear 303 realizes the transmission conversion from the motor 202 to the disk 306, while the belt 301 acts as the medium for power transmission, transmitting the power of the motor 202 to the first bevel gear 305. This design not only simplifies the overall structure but also improves the stability and efficiency of the transmission.

[0052] In some embodiments, the screening structure 3 further includes a rotating rod 304 for mounting a first bevel gear 305 and a connecting plate 302 for mounting a disc 306 and a second bevel gear 303. The connecting plate 302 is mounted on the side wall of the device body 1 and extends along a first direction. The rotation shaft of the second bevel gear 303 is rotatably engaged with the connecting plate 302. The rotating rod 304 is arranged along the first direction and is rotatably connected to the side wall of the device body 1. The first bevel gear 305 is mounted on the end of the rotating rod 304 facing away from the device body 1.

[0053] In some embodiments, the impact structure 4 further includes an impact block 406, a squeezing block 407, and a second elastic member 403. The squeezing block 407 is mounted on the side of the screen 310 facing the fixing bar 405, and the impact block 406 is mounted on the fixing bar 405, with the impact block 406 located on the movement path of the squeezing block 407. The two ends of the second elastic member 403 act on the fixing bar 405 and the device body 1, respectively, causing the fixing bar 405 to tend to move towards the screen 310. When the screen 310 moves, the squeezing block 407 pushes the fixing bar 405 away from the screen 310 via the impact block 406.

[0054] As the screen 310 moves, the squeezing block 407 periodically contacts and pushes the impact block 406, which in turn causes the fixing strip 405 to move away from the screen 310. After the squeezing block 407 separates from the impact block 406, under the elastic force of the second elastic element 403, the fixing strip 405 causes the striking block 408 to collide with the screen 310, thus causing the screen 310 to vibrate. This movement not only increases the vibration amplitude of the screen 310 but also allows the steel slag on the screen 310 to be screened and separated more thoroughly. The enhanced vibration effect helps to break the adhesion between the steel slag particles, making it easier for fine particles to pass through the screen 310, thereby improving screening efficiency and screening quality.

[0055] The second elastic element 403 enables the fixing bar 405 to automatically reset after being pushed by the extrusion block 407. This reset mechanism not only ensures the stability of the relative position between the screen 310 and the fixing bar 405, but also prevents the screen 310 from deforming or being damaged due to prolonged vibration. By adjusting the stiffness and length of the second elastic element 403, precise control of the vibration frequency and amplitude of the screen 310 can be achieved, thereby meeting different screening requirements.

[0056] Both the first elastic element 314 and the second elastic element 403 can be made of springs or rubber, etc.

[0057] In some embodiments, a plurality of impact blocks 406 are provided, and the plurality of impact blocks 406 are spaced apart on the fixing strip 405 along a first direction; and / or a plurality of extrusion blocks 407 are provided, and the plurality of extrusion blocks 407 are spaced apart at the bottom of the screen 310 along a first direction.

[0058] By setting multiple impact blocks 406 or multiple squeezing blocks 407, the screen 310 can be impacted more times in a single reciprocating cycle, thereby increasing the vibration frequency of the screen 310 and improving the screening effect.

[0059] In this embodiment, one extrusion block 407 can be set and multiple top-impact blocks 406 can be set, or only one top-impact block 406 can be set and multiple extrusion blocks 407 can be set, or multiple extrusion blocks 407 and multiple top-impact blocks 406 can be set at the same time.

[0060] In some embodiments, the impact structure 4 further includes a mounting plate 401 and a mounting strip 402. The mounting plate 401 is connected to the device body 1, the mounting strip 402 is connected to the mounting plate 401, and the fixing strip 405 is slidably connected to the mounting plate 401. The two ends of the second elastic member 403 act on the mounting strip 402 and the fixing strip 405 respectively, and the second elastic member 403 causes the fixing strip 405 to tend to move towards the screen 310. The connection between the mounting strip 402 and the mounting plate 401 further enhances the overall stability of the structure, ensuring that the impact structure 4 can maintain a stable posture during the screening process.

[0061] In some embodiments, the impact block 406 is trapezoidal, and the width of the end of the impact block 406 facing the screen 310 is smaller than the width of the other end. The extrusion block 407 is provided with an inclined surface for cooperating with the impact block 406 at the end opposite to the screen 310, and inclined surfaces are provided on both sides of the extrusion block 407 along the first direction.

[0062] First, the trapezoidal structure ensures that the width of the end of the impact block 406 facing the screen 310 is smaller than the width of the other end. This means that when the impact block 406 contacts the extrusion block 407, the contact area gradually increases, thereby dispersing the impact force and reducing wear on both the impact block 406 and the extrusion block 407. Second, the trapezoidal structure also allows the impact block 406 to move more smoothly when pushed by the extrusion block 407, avoiding vibration and noise caused by sudden impacts. The extrusion block 407, which cooperates with the impact block 406, has an inclined surface at its end facing away from the screen 310 for engaging with the impact block 406. This inclined surface is designed to match the trapezoidal structure of the impact block 406, ensuring that the impact block 406 can be smoothly pushed when the extrusion block 407 moves. It is worth noting that the extrusion block 407 has inclined surfaces on both sides along the first direction. This means that no matter which direction the extrusion block 407 moves, it can cooperate well with the top striking block 406, thereby ensuring that the top striking block 406 can be pushed downward during the back-and-forth movement of the screen 310, so that the screen 310 can achieve multiple strikes in one reciprocation.

[0063] Of course, setting the top impact block 406 as a trapezoid is only one implementation method in this embodiment. In other implementation methods, setting the top impact block 406 as a shape with a width that gradually decreases from bottom to top, for example, a hemispherical shape, is also possible. When the top impact block 406 is set as a hemispherical shape, the bottom of the extrusion block 407 can also be set as a hemispherical shape.

[0064] Through the above embodiments, this application has the following beneficial effects or advantages: The steel slag crushing device with screening function disclosed in this application can simultaneously achieve steel slag crushing and screening, improving processing efficiency and reducing costs. The screening structure 3, through the rotation of the disc 306 and the cooperation of the connecting components, realizes the reciprocating movement of the screen 310, improving the screening effect. The impact structure 4, through the cooperation of the fixed bar 405, the striking block 408, the impact block 406, and the squeezing block 407, realizes the vibration of the screen 310, further improving screening efficiency. The steel slag crushing device with screening function disclosed in this application has a simple structure, is easy to operate, reduces equipment costs, and improves economic benefits. Through the combined effects of crushing, screening, reciprocating movement, and impact, it effectively avoids the problem of large pieces of steel slag clogging the screening port, improves screening efficiency, and reduces the workload of subsequent processing.

[0065] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention have been clearly and completely described above with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0066] Therefore, the above detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0067] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0068] In the description of this invention, it should be understood that the terms indicating orientation or positional relationship are based on the orientation or positional relationship shown in the drawings and are only for the convenience of describing this invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention.

[0069] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0070] In this invention, unless otherwise expressly specified and limited, "above or below" a first feature may include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on" the first feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the first feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0071] Although preferred embodiments of this application have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of this application.

[0072] Obviously, those skilled in the art can make various modifications and variations to this application without departing from the spirit and scope of this application. Therefore, if such modifications and variations fall within the scope of the claims of this application and their equivalents, this application also intends to include such modifications and variations.

Claims

1. A steel slag crushing device with screening function, characterized in that, include: The device body includes a connected working chamber and a feed inlet; A crushing structure, the crushing structure comprising at least two crushing rollers, each of the crushing rollers being arranged at intervals within the working chamber; A screening structure, comprising a barrier and a screen, wherein the barrier is arranged around the screen and the screen is slidably engaged with the device body; The impact structure includes a fixing strip and a striking block. The fixing strip is slidably engaged with the device body, and the moving direction of the fixing strip is set at an angle to the moving direction of the screen. The striking block is installed on the fixing strip, and when the fixing strip moves toward the screen, the striking block causes the screen to vibrate.

2. The steel slag crushing device with screening function according to claim 1, characterized in that, The crushing structure also includes multiple motors, each motor corresponding to one of the multiple crushing rollers, and each motor is connected to the corresponding crushing roller via a drive shaft.

3. The steel slag crushing device with screening function according to claim 2, characterized in that, The screening structure further includes a sliding rod, a disc, and a connecting assembly. The sliding rod is connected to the enclosure and is slidably engaged with the device body. The disc is rotatably engaged with the device body, and the rotation axis of the disc is perpendicular to the sliding rod. The disc and the sliding rod are connected by the connecting assembly. When the disc rotates, the disc drives the sliding rod to move relative to the device body in a first direction through the connecting assembly.

4. The steel slag crushing device with screening function according to claim 3, characterized in that, The connecting assembly includes a fixed plate and an extrusion block. The fixed plate is connected to the sliding rod, and the extrusion block is eccentrically disposed with respect to the disc. When the disc rotates, the extrusion block pushes the fixed plate, the sliding rod, and the enclosure to move relative to the body along a first direction.

5. The steel slag crushing device with screening function according to claim 4, characterized in that, The screening structure further includes a first elastic element, the two ends of which act on the enclosure and the device body respectively, and the first elastic element causes the enclosure to have a tendency to move in a second direction opposite to the first direction.

6. The steel slag crushing device with screening function according to claim 3, characterized in that, The screening structure further includes a first bevel gear, a second bevel gear, and a belt. The first bevel gear is rotatably connected to the device body. The second bevel gear is mounted on the disc and meshes with the first bevel gear. One end of the belt is sleeved on the drive shaft of one of the motors, and the other end of the belt is sleeved on the rotating shaft of the first bevel gear. When the motor is working, the motor drives the first bevel gear to rotate through the belt.

7. The steel slag crushing device with screening function according to any one of claims 1 to 6, characterized in that, The top-impact structure further includes an impact block, a pressing block, and a second elastic element. The pressing block is installed on the side of the screen facing the fixed strip, and the impact block is installed on the fixed strip and located on the moving path of the pressing block. The two ends of the second elastic element act on the fixed strip and the device body, respectively. The second elastic element causes the fixed strip to tend to move toward the screen. When the screen moves, the pressing block pushes the fixed strip away from the screen through the impact block.

8. The steel slag crushing device with screening function according to claim 7, characterized in that, The impact blocks are configured in multiple ways, and the multiple impact blocks are spaced apart on the fixing strip along a first direction; and / or The extrusion blocks are configured in multiple ways, and the multiple extrusion blocks are spaced apart at the bottom of the screen along the first direction.

9. The steel slag crushing device with screening function according to claim 7, characterized in that, The top-impact structure also includes a mounting plate and a mounting strip. The mounting plate is connected to the device body, the mounting strip is connected to the mounting plate, and the fixing strip is slidably connected to the mounting plate. The two ends of the second elastic member act on the mounting strip and the fixing strip respectively, and the second elastic member causes the fixing strip to have a tendency to move towards the screen.

10. The steel slag crushing device with screening function according to claim 7, characterized in that, The impact block is trapezoidal, and the width of the end of the impact block facing the screen is smaller than the width of the other end. The end of the extrusion block away from the screen is provided with an inclined surface for cooperating with the impact block. The inclined surface is provided on both sides of the extrusion block along the first direction.

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