Tundish slag dam raw material crusher

Abstract

The utility model relates to the technical field of ferrous metallurgy, and discloses a tundish slag dam raw material crusher which comprises a crushing platform, the top of the crushing platform is fixedly connected with a mounting frame, and a crushing and screening assembly is arranged on the surface of the top of the crushing platform. The crushing and screening assembly comprises a feeding hopper fixedly connected to the surface of the top of the mounting frame, crushing rollers are relatively rotatably connected to the interior of the feeding hopper through rotating shafts, and the surfaces of one ends of the two rotating shafts penetrate through the side wall of the feeding hopper and are fixedly connected with gears engaged with each other; a motor frame is fixedly connected to the surface of the side wall of the mounting frame, and a driving motor is fixedly connected to the surface of the top of the motor frame. According to the utility model, through the arrangement of the crushing and screening assembly, the equipment cost and the maintenance cost are saved, the whole crushing and screening processes can be synchronously carried out, the working efficiency is improved, the multi-stage screening of crushed raw materials is realized, and the quality and the consistency of products are improved.

Description

Technical Field

[0001] This utility model relates to the field of iron and steel metallurgy technology, and in particular to a raw material crusher with a tundish slag weir. Background Technology

[0002] The slag weir of the tundish is made of refractory materials, such as magnesia, alumina-magnesia or high alumina, to withstand the scouring and erosion of high-temperature molten steel. Its shape and size are determined according to the specific structure and process requirements of the tundish. It can be a single wall, double wall or multi-wall structure. In the steelmaking process, the slag weir plays an important metallurgical role and is a key component to ensure the quality of continuously cast billets.

[0003] The manufacture of tundish slag weirs requires raw materials of a specific particle size. Therefore, during the manufacturing process, these raw materials need to be crushed to reach the required particle size range, thereby ensuring the quality and performance of the slag weir. The crusher can crush the raw materials into uniform particles, which is conducive to the uniform distribution of the components in the raw materials, thereby improving the overall performance of the slag weir.

[0004] However, the existing tundish slag weir raw material crusher can only crush the tundish slag weir raw material and cannot perform coarse and fine screening of the crushed raw material, thus failing to meet the needs of different raw material processing and reducing the crushing efficiency of the tundish slag weir raw material. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a tundish slag weir raw material crusher, which has the advantages of saving equipment costs, simultaneous crushing and screening, and automated cleaning. It solves the problem that existing tundish slag weir raw material crushers cannot perform coarse and fine screening of crushed raw materials, thus failing to meet the needs of different raw material processing and reducing the crushing efficiency of tundish slag weir raw materials.

[0006] This utility model provides the following technical solution: a tundish slag weir raw material crusher, including a crushing platform, a mounting frame fixedly connected to the top of the crushing platform, a crushing and screening assembly provided on the top surface of the crushing platform, the crushing and screening assembly including a feeding hopper fixedly connected to the top surface of the mounting frame, crushing rollers rotatably connected to the inside of the feeding hopper via rotating shafts, one end of each of the two rotating shafts passing through the side wall of the feeding hopper and fixedly connected to meshing gears, a motor frame fixedly connected to the side wall surface of the mounting frame, a drive motor fixedly connected to the top surface of the motor frame, a first pulley fixedly connected to the surface of one of the rotating shafts, side plates fixedly connected to the top surface of the crushing platform, and a drive shaft symmetrically rotatably connected between the opposing surfaces of the two side plates, one end of one of the drive shafts passing through the side plate and... A second pulley is fixedly connected to the surface of the mounting frame. A connecting belt is rotatably connected to the surfaces of the first and second pulleys. A conveyor belt is rotatably connected to the surfaces of the two drive shafts, so that one drive motor can simultaneously drive two crushing rollers and the conveyor belt, ensuring power utilization and saving equipment and maintenance costs. The surface of the conveyor belt is uniformly provided with first screening holes for screening the crushed raw materials. A guide plate is fixedly connected between the inner walls of the mounting frame. A fixed frame is fixedly connected to the top surface of the crushing platform away from the mounting frame. A guide port is provided inside the fixed frame. A fine material outlet is provided on the surface of the crushing platform directly below the conveyor belt. A coarse material outlet is provided on the surface of the crushing platform directly below the guide port. A cleaning component is provided inside the fixed frame.

[0007] Preferably, the cleaning component includes guide grooves that are opened on the inner wall surface of the fixed frame, and an installation plate is provided inside the fixed frame. A cleaning brush is fixedly connected to the top surface of the installation plate, and springs are uniformly fixedly connected to the bottom surface of the installation plate. This enables the cleaning brush to automatically brush away residual raw materials inside the first screening hole on the surface of the conveyor belt during the conveyor belt movement, preventing the raw materials from clogging the first screening hole.

[0008] Preferably, both ends of the mounting plate are slidably connected inside the guide groove, the top surface of the cleaning brush abuts against the surface of the conveyor belt, and the guide groove guides and limits the mounting plate.

[0009] Preferably, the other end of each spring is fixedly connected to the inner wall surface of the fixed frame, the cleaning component is located on the left side of the feed inlet, and the springs enable the cleaning brush to always abut against the surface of the conveyor belt.

[0010] Preferably, the two crushing rollers mesh with each other, and the drive motor is fixedly connected to the surface of one of the rotating shafts.

[0011] Preferably, the guide plate is positioned directly below the feeding hopper, and the mounting frame and the fixing frame are positioned opposite each other.

[0012] Preferably, the secondary screening component includes a screening plate fixedly connected between the two side plates. The screening plate has a figure-eight structure. The surface of the screening plate is uniformly provided with second screening holes. The surfaces of the two side plates are symmetrically provided with intermediate discharge ports. The surfaces of the two side plates and the outer side of the intermediate discharge ports are both fixedly connected with guide plates. The diameter of the second screening hole is smaller than the diameter of the first screening hole.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] 1. By setting up the crushing and screening components, one drive motor can simultaneously drive two crushing rollers and the conveyor belt, saving equipment and maintenance costs. This allows the entire crushing and screening process to proceed synchronously, improving work efficiency. The first screening holes evenly opened on the conveyor belt, together with the second screening holes on the surface of the screening plate, realize synchronous multi-stage screening of the crushed raw materials, ensuring the accuracy of raw material classification, meeting the needs of different raw material processing, and improving product quality and consistency.

[0015] 2. Through the set cleaning components, the cleaning brush can automatically brush away the residual raw materials inside the first screening hole on the surface of the conveyor belt during the conveyor belt movement, effectively preventing the raw materials from clogging the first screening hole, thereby ensuring the stability and accuracy of the screening effect, improving the automation level of the equipment, reducing the frequency and difficulty of manual cleaning, and further improving production efficiency. Attached Figure Description

[0016] Figure 1 This is a front view of the structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the crushing and screening component in the structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the cleaning component in the structure of this utility model.

[0019] In the diagram: 1. Crushing platform; 2. Mounting frame; 3. Crushing and screening assembly; 31. Feeding hopper; 32. Crushing roller; 33. Gear; 34. Motor frame; 35. Drive motor; 36. First pulley; 37. Side plate; 38. Drive shaft; 39. Second pulley; 311. Connecting belt; 312. Conveyor belt; 313. First screening hole; 314. Guide plate; 315. Fixing frame; 316. Guide port; 317. Fine material outlet; 318. Coarse material outlet; 4. Cleaning assembly; 41. Guide groove; 42. Mounting plate; 43. Cleaning brush; 44. Spring; 5. Secondary screening assembly; 51. Screening plate; 52. Second screening hole; 53. Intermediate outlet; 54. Guide plate. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figures 1-3This utility model provides an embodiment of a tundish slag weir raw material crusher, comprising a crushing platform 1, a mounting frame 2 fixedly connected to the top of the crushing platform 1, a crushing and screening assembly 3 provided on the top surface of the crushing platform 1, the crushing and screening assembly 3 including a feeding hopper 31 fixedly connected to the top surface of the mounting frame 2, crushing rollers 32 rotatably connected to the inside of the feeding hopper 31 via rotating shafts, and meshing gears 33 fixedly connected to one end of each of the two rotating shafts passing through the side wall of the feeding hopper 31, a motor frame 34 fixedly connected to the side wall surface of the mounting frame 2, a drive motor 35 fixedly connected to the top surface of the motor frame 34, and a first pulley 36 fixedly connected to the surface of one of the rotating shafts. Side plates 37 are fixedly connected to the surface of the crushing platform 1. A drive shaft 38 is symmetrically rotatably connected between the opposing surfaces of the two side plates 37. One end of one drive shaft 38 passes through the side plate 37 and is fixedly connected to a second pulley 39. A connecting belt 311 is rotatably connected to the surfaces of the first pulley 36 and the second pulley 39. A conveyor belt 312 is rotatably connected to the surfaces of the two drive shafts 38. First screening holes 313 are evenly distributed on the surface of the conveyor belt 312. A guide plate 314 is fixedly connected between the inner walls of the mounting frame 2. A fixing frame 315 is fixedly connected to the top surface of the crushing platform 1, away from the mounting frame 2. A guide port 316 is provided inside the fixing frame 315. The surface of the crushing platform 1 is located on the side of the conveyor belt 314. A fine material outlet 317 is provided directly below the hopper 12, and a coarse material outlet 318 is provided on the surface of the crushing platform 1, directly below the guide inlet 316. A cleaning component 4 is installed inside the fixing frame 315. Two crushing rollers 32 mesh with each other. A drive motor 35 is fixedly connected to the surface of one of the rotating shafts. A guide plate 314 is provided directly below the feeding hopper 31. The mounting frame 2 and the fixing frame 315 are arranged opposite to each other. The drive motor 35 drives one of the crushing rollers 32 inside the feeding hopper 31 to rotate through one of the rotating shafts. Since one end of each of the two rotating shafts passes through the side wall of the feeding hopper 31 and is fixedly connected to meshing gears 33, both crushing rollers 32 can be driven to rotate relative to each other simultaneously. The first pulley 36, the second pulley 39, and the connecting belt 311 synchronously drive the drive shaft 38 to rotate, thereby enabling a single drive motor 35 to synchronously drive the crushing roller 32 and the conveyor belt 312, saving equipment costs. During the operation of the conveyor belt 312, the vibration generated by the drive motor 35 allows the raw materials crushed by the crushing roller 32 and falling onto the surface of the conveyor belt 312 to undergo coarse and fine screening through the first screening hole 313. The secondary screening assembly 5 includes a screening plate 51 fixedly connected between two side plates 37. The screening plate 51 has a V-shaped structure, and the surface of the screening plate 51 is uniformly provided with second screening holes 52. The surfaces of the two side plates 37 are symmetrically provided with intermediate discharge ports 53.Guide plates 54 are fixedly connected to the surfaces of both side plates 37, located outside the intermediate discharge port 53. The diameter of the second screening hole 52 is smaller than the diameter of the first screening hole 313.

[0022] Please see Figures 1-3 The cleaning component 4 includes a guide groove 41 that is opened on the inner wall surface of the fixed frame 315. The fixed frame 315 is provided with a mounting plate 42. A cleaning brush 43 is fixedly connected to the top surface of the mounting plate 42. Springs 44 are evenly fixedly connected to the bottom surface of the mounting plate 42. The springs 44 provide a squeezing force so that the cleaning brush 43 can always abut against the surface of the conveyor belt 312. Both ends of the mounting plate 42 are slidably connected to the inside of the guide groove 41. The top surface of the cleaning brush 43 abuts against the surface of the conveyor belt 312. The other end of the springs 44 is fixedly connected to the inner wall surface of the fixed frame 315. The cleaning component 4 is located on the left side of the feed inlet 316. The cleaning brush 43 can brush away the residual raw materials inside the first screening hole 313 on the surface of the conveyor belt 312 to prevent the raw materials from clogging the first screening hole 313.

[0023] Working principle: During operation, the drive motor 35 is started. The drive motor 35 transmits power to one of the crushing rollers 32 via a rotating shaft fixedly connected to it, causing one of the crushing rollers 32 to start rotating. Since both rotating shafts have meshing gears 33 fixedly connected to one end, when one rotating shaft rotates, the other rotating shaft will also start rotating under the meshing action of the gears 33, thus achieving relative rotation of the two crushing rollers 32. At this time, raw materials are added from above the feed hopper 31. The raw materials are bitten, squeezed, and crushed by the two relatively rotating crushing rollers 32. The crushed raw materials fall onto the guide plate 314, and... The material slides down the inclined plate onto the conveyor belt 312. Simultaneously, the rotating shaft connected to the drive motor 35 drives the transmission shaft 38 to rotate via the first pulley 36, the connecting belt 311, and the second pulley 39, thus initiating the movement of the conveyor belt 312. During the movement of the conveyor belt 312, due to the vibration of the drive motor 35 and the movement of the conveyor belt 312 itself, the crushed material falling onto the surface of the conveyor belt 312 can undergo coarse and fine screening through the first screening hole 313 during vibration and movement. After screening, the medium-grade material falls onto the surface of the screening plate 51 through the first screening hole 313 and then passes through the screen. The second screening hole 52 on the surface of the screening plate 51 performs secondary screening, thereby achieving multi-stage screening. Because the screening plate 51 has a V-shaped structure, the inclined screening plate 51 causes intermediate raw materials to be discharged through the intermediate discharge port 53 and the guide plate 54. Subsequently, fine raw materials fall onto the crushing platform 1 after being screened twice by the first screening hole 313 and the second screening hole 52, and are discharged from the fine material discharge port 317. Larger raw materials continue to move with the conveyor belt 312 and are eventually conveyed to the guide port 316. Due to gravity, they fall to the coarse material discharge port 318 and are discharged from there. Furthermore, in the conveying... During the movement of the conveyor belt 312, the mounting plate 42, under the elastic force of the spring 44, keeps the cleaning brush 43 on its top in contact with the surface of the conveyor belt 312. When the conveyor belt 312 moves, the cleaning brush 43 can brush away the residual material inside the first screening hole 313 on the surface of the conveyor belt 312, preventing the material from clogging the first screening hole 313 and affecting the screening effect. The cleaned material will also be discharged from the guide port 316 and collected through the coarse material discharge port 318. The entire crushing, screening and cleaning process is carried out synchronously under the drive of the drive motor 35, realizing efficient and continuous crushing and processing of the raw material of the tundish slag weir.

Claims

1. A tundish dam raw material crusher comprising a crushing platform (1), characterized in that: The top of the crushing platform (1) is fixedly connected with a mounting rack (2), and the top surface of the crushing platform (1) is provided with a crushing and screening assembly (3). The crushing and screening assembly (3) comprises an upper hopper (31) fixedly connected to the top surface of the mounting rack (2), the inside of the upper hopper (31) is relatively rotatably connected with a crushing roller (32) through a rotating shaft, one end surface of the two rotating shafts penetrates through the side wall of the upper hopper (31) and is fixedly connected with a gear (33) that meshes with each other, the side wall surface of the mounting rack (2) is fixedly connected with a motor rack (34), the top surface of the motor rack (34) is fixedly connected with a driving motor (35), the surface of one of the rotating shafts is fixedly connected with a first belt pulley (36), the top surface of the crushing platform (1) is relatively fixedly connected with a side plate (37), the two side plates (37) are symmetrically rotatably connected with a transmission shaft (38) between the opposite surfaces thereof, one end of one of the transmission shafts (38) penetrates through the surface of the side plate (37) and the mounting rack (2) and is fixedly connected with a second belt pulley (39), the surfaces of the first belt pulley (36) and the second belt pulley (39) are rotatably connected with a connecting belt (311), the surfaces of the two transmission shafts (38) are rotatably connected with a conveying belt (312), the surface of the conveying belt (312) is uniformly provided with a first screening hole (313), the inner walls of the mounting rack (2) are fixedly connected with a material guiding inclined plate (314), the top surface of the crushing platform (1) and away from the mounting rack (2) is fixedly connected with a fixing rack (315), the inside of the fixing rack (315) is provided with a material guiding opening (316), the surface of the crushing platform (1) and directly below the conveying belt (312) is provided with a fine material discharge opening (317), the surface of the crushing platform (1) and directly below the material guiding opening (316) is provided with a coarse material discharge opening (318), the inside of the fixing rack (315) is provided with a cleaning assembly (4), and the two side plates (37) are provided with a secondary screening assembly (5).

2. The tundish slag stopping weir raw material crusher according to claim 1, characterized in that: The cleaning assembly (4) comprises a guide groove (41) oppositely provided in the inner wall surface of the fixing rack (315), the inside of the fixing rack (315) is provided with a mounting plate (42), the top surface of the mounting plate (42) is fixedly connected with a cleaning brush (43), and the bottom surface of the mounting plate (42) is uniformly fixedly connected with a spring (44).

3. The tundish slag stopping weir raw material crusher according to claim 2, characterized in that: Both ends of the mounting plate (42) are slidably connected in the inside of the guide groove (41), and the top surface of the cleaning brush (43) abuts against the surface of the conveying belt (312).

4. The tundish slag stopping weir raw material crusher according to claim 2, characterized in that: The other end of the spring (44) is fixedly connected to the inner wall surface of the fixing rack (315), and the cleaning assembly (4) is arranged on the left side of the material guiding opening (316).

5. The tundish slag stopping weir raw material crusher according to claim 1, characterized in that: The two crushing rollers (32) mesh with each other, and the driving motor (35) is fixedly connected to the surface of one of the rotating shafts.

6. The tundish slag stopping weir raw material crusher according to claim 1, characterized in that: The material guiding inclined plate (314) is arranged directly below the upper hopper (31), and the mounting rack (2) and the fixing rack (315) are relatively arranged.

7. The tundish slag stopping weir raw material crusher according to claim 1, characterized in that: The secondary screening assembly (5) comprises a screening plate (51) fixedly connected between the two side plates (37), the screening plate (51) is in a splayed structure, the surface of the screening plate (51) is uniformly provided with second screening holes (52), the surface of the two side plates (37) is symmetrically provided with a middle discharge port (53), and the surface of the two side plates (37) and located outside the middle discharge port (53) is fixedly connected with a guide plate (54).

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