A mixing and grinding device for recycled granules from waste magnesia-carbon bricks

Abstract

This invention belongs to the field of grinding technology, specifically a grinding device for recycling waste magnesia-carbon brick particles. The proposed solution includes a rotating drum with rotating frames at both ends. Multiple grinding rollers are rotatably mounted between the rotating frames. The outer walls of the grinding rollers are in rotatable contact with the inner wall of the drum. The rotating frames rotate in opposite directions to the drum. The outer walls of the grinding rollers have annular grooves. Multiple protruding plates are fixed to the inner wall of the drum at positions corresponding to the grooves. A swing plate is positioned between adjacent protruding plates on the inner wall of the drum. Both ends of the swing plate are rotatably connected to mounting blocks via torsion springs, and the mounting blocks are fixed to the inner wall of the drum. This invention utilizes the inclined swing plate to allow some particles to accumulate at the bottom before contacting the grinding rollers. After grinding, the torsion springs cause the swing plate to spring back, thus dispersing the ground particles. This dynamic motion improves the grinding effect and efficiency.

Description

Technical Field

[0001] This invention relates to the field of grinding technology, and more particularly to a grinding device for recycling waste magnesia-carbon brick pellets. Background Technology

[0002] In the process of recycling waste magnesia-carbon bricks, the magnesia-carbon brick material is often crushed and then mixed and ground with other refractory powders.

[0003] Chinese patent publication number CN211725471U discloses a mixing and grinding device for recycling waste magnesia-carbon brick pellets, including a mixing and grinding cylinder, a reduction motor, and a mixing and grinding mechanism. The mixing and grinding cylinder has a hollow through shaft in the middle. The mixing and grinding mechanism is located inside the mixing and grinding cylinder and is rotatably connected to the through shaft. The reduction motor is located at the bottom of the mixing and grinding cylinder and is connected to the mixing and grinding mechanism.

[0004] In existing technologies, grinding is generally carried out by rotating rollers in a plane or drum. However, this method tends to flatten and aggregate clumps of particles, resulting in poor mixing and dispersion between different particles and poor grinding effect on aggregated particles. Summary of the Invention

[0005] Based on the technical problems in the background art, the present invention proposes a mixing and grinding device for recycled particles of waste magnesia-carbon bricks.

[0006] This invention proposes a mixing and grinding device for recycling waste magnesia-carbon brick pellets, comprising a rotating drum, with rotating frames at both ends inside the drum, and multiple mixing rollers rotatably arranged between the two rotating frames. The outer wall of the mixing rollers is in rotatable contact with the inner wall of the drum. The rotating frames rotate in the opposite direction to the drum. The outer wall of the mixing rollers has an annular groove. Multiple protruding plates are fixed on the inner wall of the drum at positions corresponding to the grooves. A swing plate is arranged on the inner wall of the drum between two adjacent protruding plates. Both ends of the swing plate are rotatably connected to mounting blocks via torsion springs. The mounting blocks are fixed to the inner wall of the drum, and the side of the swing plate away from the mounting blocks is inclined in the direction of rotation of the rotating frames.

[0007] Preferably, a fixed rod is provided at the axial center of the rotating drum, and multiple auxiliary plates are installed outside the fixed rod between the two rotating frames, with the outer wall of the auxiliary plates in sliding contact with the inner wall of the groove.

[0008] Preferably, a drive seat is rotatably connected to the middle position of the outer wall of the rotating drum, a motor is drivenly connected to the outer wall of the rotating drum, a mounting bracket is fixed to the bottom end of the drive seat, and a base is rotatably provided on the outside of the mounting bracket.

[0009] Preferably, a fixed cover plate is fixed to one end of the top of the mounting frame, and an annular groove is provided at the end of the fixed cover plate. The end of the rotating cylinder slides in contact with the inner wall of the groove. A cylinder cover is detachably connected to the end of the rotating cylinder away from the fixed cover plate, and one end of the fixing rod is fixedly connected to the fixed cover plate.

[0010] Preferably, a connecting pipe is fixed at the middle position of the rotating frame, the connecting pipe is rotatably connected to the outer wall of the fixed rod, a gear one is installed at the position of the connecting pipe near the fixed cover plate, a motor two is installed on the outer wall of the fixed cover plate, and a gear two that meshes with gear one is fixed to the output shaft of motor two.

[0011] Preferably, both ends of the mixing roller are fixed with shafts, and the outer wall of the shafts is rotatably connected to the rotating frame through bearings.

[0012] Preferably, a toothed ring is fixed to the inner side of the sliding groove of the fixed cover plate, and a gear three is fixed at the position corresponding to the shaft and the toothed ring, and the tooth groove on the inner wall of the toothed ring meshes with the gear three.

[0013] Preferably, both ends of the auxiliary plate are fixed with extensions, and the outer wall of the extensions slides in contact with the outer wall of the mixing roller.

[0014] Preferably, two connecting plates are installed on the outer wall of the fixed rod at the position corresponding to the auxiliary plate, and a connecting rod is rotatably connected between the two connecting plates by a torsion spring. The end of the connecting rod away from the connecting plate is fixed to the auxiliary plate.

[0015] The beneficial effects of this invention are as follows:

[0016] In this invention, the convex plates and swing plates that are spaced apart and protrude from the inner wall of the drum can lift and disperse a large number of particles. The tilted swing plates can cause some particles to accumulate at the bottom and then come into contact with the mixing roller, thereby improving the crushing effect when the mixing roller approaches. After crushing, the swing plates are reset and bounced up by the torsion spring, thereby lifting and dispersing the crushed particles. In this way, the mixing effect and the efficiency of the mixing operation are improved through dynamic movement.

[0017] In this invention, the relative displacement between the rotating drum, the mixing roller, and the auxiliary plate allows for alternating dispersion mixing and compaction, thereby improving the mixing and compaction operation effect and work efficiency.

[0018] In this invention, the mixing effect and work efficiency are improved by using an auxiliary plate that can be deflected to coordinate with the movement of the mixing roller. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of a grinding and mixing device for recycled granules from waste magnesia-carbon bricks proposed in this invention.

[0020] Figure 2This is a schematic diagram of the internal structure of the rotary drum of a grinding device for recycling waste magnesia-carbon brick pellets proposed in this invention.

[0021] Figure 3 This is a cross-sectional structural schematic diagram of a mixing and grinding device for recycled granules of waste magnesia-carbon bricks proposed in this invention.

[0022] Figure 4 This is a schematic diagram of the mixing roller structure of a mixing and grinding device for recycling waste magnesia-carbon brick pellets proposed in this invention.

[0023] Figure 5 This is a schematic diagram of the rotary drum structure of a mixing and grinding device for recycled granules of waste magnesia-carbon bricks proposed in this invention.

[0024] Figure 6 This is a schematic diagram of the fixed cover plate position structure of a mixing and grinding device for recycled magnesia-carbon brick pellets proposed in this invention.

[0025] Figure 7 This is a schematic diagram of the rotating frame position structure of a mixing and grinding device for recycled magnesia-carbon brick pellets proposed in this invention.

[0026] Figure 8 This is a schematic diagram of the auxiliary plate position structure of a mixing and grinding device for recycled magnesia-carbon brick pellets proposed in this invention.

[0027] Figure 9 This is a schematic diagram of the connecting plate and connecting rod structure of a mixing and grinding device for recycled magnesia-carbon brick pellets proposed in this invention.

[0028] In the diagram: 1 Rotary drum, 2 Rotating frame, 201 Connecting pipe, 3 Mixing roller, 301 Groove, 4 Convex plate, 5 Swinging plate, 6 Mounting block, 7 Fixing rod, 8 Auxiliary plate, 801 Extension, 9 Drive seat, 10 Motor 1, 11 Fixing cover plate, 111 Slide groove, 12 Drum cover, 13 Mounting frame, 14 Base, 15 Gear 1, 16 Gear 2, 17 Shaft, 18 Gear 3, 19 Gear ring, 20 Connecting plate, 21 Connecting rod. Detailed Implementation

[0029] Example 1: Refer to Figures 1-9A grinding device for recycling granules from waste magnesia-carbon bricks includes a rotating drum 1. Rotating frames 2 are located at both ends of the drum 1. Multiple grinding rollers 3, arranged in a circular array, are rotatably positioned between the two rotating frames 2. The outer walls of the grinding rollers 3 are in rotatable contact with the inner wall of the drum 1. The rotating frames 2 and the drum 1 rotate in opposite directions around the same axis. A ring-shaped groove 301 is formed on the outer wall of the grinding rollers 3. Multiple protruding plates 4 are fixed at positions corresponding to the groove 301 on the inner wall of the drum 1. The outer walls of the protruding plates 4 are in sliding contact with the inner wall of the groove 301. A swing plate 5 is positioned on the inner wall of the drum 1 between two adjacent protruding plates 4. Both ends of the swing plate 5 are rotatably connected to mounting blocks 6 via torsion springs. The mounting blocks 6 are fixed to the inner wall of the drum 1. The thickness of the mounting blocks 6 and the swing plate 5 is not greater than the depth of the groove 301, and the axial extension lengths of the swing plate 5 and the two mounting blocks 6 are adapted to the groove 301. The side of the swing plate 5 away from the mounting blocks 6 is inclined towards the rotation direction of the rotating frames 2. Under normal conditions, the swing plate 5... Under the action of the spring, the roller detaches from the inner wall of the rotating drum 1 and remains tilted. During the circumferential rotation of the rotating drum 1 and the rotating frame 2 with the mixing roller 3, when the mixing roller 3 rotates close to the swing plate 5, it can press the swing plate 5 towards the inner wall of the rotating drum 1, so that the swing plate 5 can be in contact with the inner wall of the rotating drum 1 and the mixing roller 3 can move past the position of the swing plate 5. Thus, during use, the convex plates 4 and the swing plate 5, which are spaced apart and protrude from the inner wall of the rotating drum 1, can lift up and disperse a large number of particles. The convex plates 4, which are widely distributed, ensure the crushing and dispersing effect of the circumferential motion of the mixing roller 3. Furthermore, the tilted swing plate 5 can cause some particles to accumulate at the bottom and then contact the mixing roller 3, thereby improving the crushing effect when the mixing roller 3 is close. After crushing, the torsion spring is used to reset the swing plate 5 and bounce it up, thereby lifting up and dispersing the crushed particles. In this way, the dynamic motion improves the mixing effect and the efficiency of the mixing operation. It effectively avoids the crushed particles from accumulating on the inner wall surface of the rotating drum 1, which would affect the dispersion uniformity and the mixing effect.

[0030] In this invention, a fixed rod 7 is provided at the axial center of the rotating drum 1. During use, both the rotating drum 1 and the rotating frame 2 rotate relative to the fixed rod 7. A drive seat 9 is rotatably connected to the middle position of the outer wall of the rotating drum 1. A motor 10 is drivenly connected to the outer wall of the rotating drum 1. It should be noted that: a ring is installed on the outer wall of the rotating drum 1. The ring is limited to rotate within the drive seat 9. The output shaft of the motor 10 is connected to the ring through a transmission belt or gear set. This installation method and driving method are conventional means, so they will not be described in detail. A mounting frame 13 is fixed at the bottom of the drive seat 9. A base 14 is rotatably provided on the outside of the mounting frame 13. A rotating motor that drives the mounting frame 13 to deflect is installed in the base 14. The mounting frame 13 can deflect towards the end so that the end opening of the rotating drum 1 faces downward for material pouring.

[0031] In this invention, a fixed cover plate 11 is fixed to one end of the top of the mounting frame 13. The end of the fixed cover plate 11 is provided with a sliding groove 111 with an annular structure. The end of the rotating cylinder 1 slides in contact with the inner wall of the sliding groove 111. A cylinder cover 12 is detachably connected to the end of the rotating cylinder 1 away from the fixed cover plate 11. Loading and unloading operations are performed through the position of the cylinder cover 12. One end of the fixed rod 7 is fixedly connected to the fixed cover plate 11. Through the relative rotation of the rotating cylinder 1 and the fixed cover plate 11, one end of the rotating cylinder 1 can be sealed and the position of the fixed rod 7 can be fixed.

[0032] In this invention, a connecting pipe 201 is fixed at the middle position of the rotating frame 2. The connecting pipe 201 is rotatably connected to the outer wall of the fixed rod 7. A gear 15 is installed at the position of the connecting pipe 201 near the fixed cover plate 11. A motor 2 is installed on the outer wall of the fixed cover plate 11. The output shaft of the motor 2 extends into the rotating drum 1. A gear 2 16 that meshes with the gear 15 is fixed to the output shaft of the motor 2. Thus, the rotating drum 1 is rotated by the motor 10, and the rotating frame 2 rotates the mixing roller 3 in a circular motion by the motor 2, so as to realize the independent rotation of the rotating drum 1 and the mixing roller 3 in opposite directions.

[0033] In this invention, both ends of the mixing roller 3 are fixed with shafts 17. The rotating frame 2 is provided with an extension extending toward the mixing roller 3. The end of the extension is provided with a through hole. The outer wall of the shaft 17 and the inner wall of the through hole of the rotating frame 2 are rotatably connected by a bearing. The shaft 17 extends through the through hole to the outside of the rotating frame 2. The fixed cover plate 11 is fixed with a toothed ring 19 on the inner side of the slide groove 111. The shaft 17 and the toothed ring 19 are fixed with a gear 18 at the corresponding positions. The tooth groove on the inner wall of the toothed ring 19 meshes with the gear 18. During the operation, the rotating frame 2 carries the relative displacement between the mixing roller 3 and the fixed cover plate 11. Under the meshing action of the gear 18 and the toothed ring 19, the gear 18 and the mixing roller 3 rotate along the axis of the mixing roller 3 itself, thereby realizing the stable rotation operation of the drum 1, the rotating frame 2 and the mixing roller 3.

[0034] Example 2: Refer to Figures 1-9 A mixing and grinding device for recycled granules from waste magnesia-carbon bricks, based on Example 1, has multiple auxiliary plates 8 installed outside the fixed rod 7 between two rotating frames 2. The outer wall of the auxiliary plates 8, away from the fixed rod 7, slides in contact with the inner wall of the groove 301. Through the relative displacement between the rotating drum 1, the mixing roller 3, and the auxiliary plates 8, the granules raised by the rotating drum 1 and the mixing roller 3 will impact the auxiliary plates 8 to improve the dispersion and mixing effect between the granules. The inner side of the mixing roller 3 can contact the auxiliary plates 8 to crush some of the granules. Thus, dispersion and mixing and crushing are carried out alternately, thereby improving the mixing and grinding operation effect and work efficiency.

[0035] In this invention, both ends of the auxiliary plate 8 are fixed with extensions 801. The outer wall of the extensions 801 away from the fixed rod 7 slides in contact with the outer wall of the mixing roller 3, ensuring the contact and rolling effect of each position of the mixing roller 3. Furthermore, the positional difference between the auxiliary plate 8 and the outer wall of the extensions 801 causes the dispersion difference of the scattered particles impacting the auxiliary plate 8 and the extensions 801, thereby further improving the dispersion and mixing effect after rolling and further improving the efficiency of the mixing operation.

[0036] In this invention, two connecting plates 20 are installed on the outer wall of the fixed rod 7 at positions corresponding to the auxiliary plate 8. A connecting rod 21 is rotatably connected between the two connecting plates 20 via a torsion spring. The end of the connecting rod 21 away from the connecting plate 20 is fixed to the auxiliary plate 8, allowing the auxiliary plate 8 to deflect with the connecting rod 21. The axis of deflection of the auxiliary plate 8 is located at the connection position between the connecting rod 21 and the connecting plate 20, i.e., the axis of rotation is different from the axis of rotation of the rotating drum 1 and the rotating frame 2. On the one hand, when the mixing roller 3 and the auxiliary plate 8 extrude particles, the auxiliary plate 8 can deflect, causing the contact position between the auxiliary plate 8 and the mixing roller 3 and the size of the gap around the contact position to change, thereby improving the crushing effect on some particles. On the other hand, the deflection and reset of the auxiliary plate 8 can further disperse the crushed particles. Thus, the deflectable setting of the auxiliary plate 8, in conjunction with the movement of the mixing roller 3, improves the mixing effect and work efficiency.

[0037] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A mixing and grinding device for recycled granules from waste magnesia-carbon bricks, comprising a rotary drum (1), with rotating frames (2) at both ends inside the rotary drum (1), and a plurality of mixing rollers (3) rotatably arranged between the two rotating frames (2), wherein the outer wall of the mixing rollers (3) is in rotatable contact with the inner wall of the rotary drum (1), characterized in that, The rotating frame (2) rotates in the opposite direction to the rotating drum (1). The outer wall of the mixing roller (3) is provided with an annular groove (301). Multiple protruding plates (4) are fixed on the inner wall of the rotating drum (1) at positions corresponding to the groove (301). A swing plate (5) is provided on the inner wall of the rotating drum (1) between two adjacent protruding plates (4). Both ends of the swing plate (5) are rotatably connected to mounting blocks (6) by torsion springs. The mounting blocks (6) are fixed to the inner wall of the rotating drum (1). The side of the swing plate (5) away from the mounting blocks (6) is inclined toward the rotation direction of the rotating frame (2). A fixed rod (7) is provided at the axial position of the rotating drum (1). A fixed rod (7) is installed outside the fixed rod (7) between the two rotating frames (2). Multiple auxiliary plates (8) are slidably connected between the outer wall of the auxiliary plate (8) and the inner wall of the groove (301). A drive seat (9) is rotatably connected to the middle position of the outer wall of the rotating drum (1). A mounting bracket (13) is fixed at the bottom end of the drive seat (9). A fixed cover plate (11) is fixed at one end of the top of the mounting bracket (13). A connecting pipe (201) is fixed at the middle position of the rotating frame (2). The connecting pipe (201) is rotatably connected to the outer wall of the fixed rod (7). A gear one (15) is installed at the position of the connecting pipe (201) near the fixed cover plate (11). A motor two is installed on the outer wall of the fixed cover plate (11). A gear two (16) that meshes with gear one (15) is fixed on the output shaft of motor two.

2. The mixing and grinding device for recycled granules from waste magnesia-carbon bricks according to claim 1, characterized in that, The outer wall of the rotating drum (1) is connected to a motor (10), and the mounting bracket (13) is equipped with a base (14) for external rotation.

3. A mixing and grinding device for recycled granules of waste magnesia-carbon bricks according to claim 2, characterized in that, The end of the fixed cover plate (11) is provided with a sliding groove (111) with an annular structure. The end of the rotating cylinder (1) slides in contact with the inner wall of the sliding groove (111). The end of the rotating cylinder (1) away from the fixed cover plate (11) is detachably connected to a cylinder cover (12). One end of the fixed rod (7) is fixedly connected to the fixed cover plate (11).

4. A mixing and grinding device for recycled granules from waste magnesia-carbon bricks according to claim 3, characterized in that, Both ends of the mixing roller (3) are fixed with shafts (17), and the outer wall of the shaft (17) is rotatably connected to the rotating frame (2) through bearings.

5. A mixing and grinding device for recycled granules of waste magnesia-carbon bricks according to claim 4, characterized in that, The fixed cover plate (11) is fixed with a toothed ring (19) on the inner side of the slide groove (111). The shaft (17) is fixed with a gear three (18) at the position corresponding to the toothed ring (19). The tooth groove on the inner wall of the toothed ring (19) meshes with the gear three (18).

6. A mixing and grinding device for recycled granules of waste magnesia-carbon bricks according to any one of claims 1 to 5, characterized in that, Both ends of the auxiliary plate (8) are fixed with extensions (801), and the outer wall of the extensions (801) slides in contact with the outer wall of the mixing roller (3).

7. A mixing and grinding device for recycled granules from waste magnesia-carbon bricks according to claim 6, characterized in that, Two connecting plates (20) are installed on the outer wall of the fixed rod (7) at the position corresponding to the auxiliary plate (8). A connecting rod (21) is rotatably connected between the two connecting plates (20) by a torsion spring. The end of the connecting rod (21) away from the connecting plate (20) is fixed to the auxiliary plate (8).

Images