Waste lithium battery recycling rotary kiln with crushing function

Abstract

The invention relates to the technical field of waste lithium battery recovery, in particular to a waste lithium battery recovery rotary kiln with a crushing function, which comprises a crushing cylinder, a rotary kiln, a coarse filter screen, a crushing mechanism, a lifting mechanism and a driving mechanism, the top of the crushing barrel communicates with a feeding hopper; the rotary kiln is arranged below the crushing barrel, and an inlet of the rotary kiln is communicated with an outlet of the crushing barrel; the coarse filter screen is arranged in the crushing cylinder and is used for screening materials entering the rotary kiln; the crushing mechanism is arranged in the crushing cylinder and is used for crushing materials; the lifting mechanism is arranged on one side of the crushing barrel; the driving mechanism is arranged on the crushing cylinder, and the output end of the driving mechanism is in driving connection with the crushing mechanism and the lifting mechanism. Through cooperative arrangement of the coarse filter screen and the lifting mechanism, it is guaranteed that battery fragment particles entering the rotary kiln are relatively small, the heating efficiency of the battery rotary kiln on battery fragments can be improved, the risk of blockage of the rotary kiln can be reduced, and the operation stability of the device is improved.

Description

Technical Field

[0001] The invention relates to the technical field of waste lithium battery recycling, and in particular to a waste lithium battery recycling rotary kiln with a crushing function. Background Art

[0002] As the energy demand of human society continues to grow, batteries, as a portable energy storage device, have become more and more important in society and people's daily lives, becoming one of the third largest consumer products. Among them, lithium-ion batteries are widely used in electronics, transportation, energy storage, aerospace and other fields due to their significant advantages such as low cost, good safety performance, long life, high specific energy, no memory effect, and environmental friendliness. Lithium-ion batteries are important basic electronic products and an important pillar for the development of emerging new energy and new energy electric vehicles. They are widely used in consumer electronics, power and energy storage systems.

[0003] A Chinese patent with the announcement number CN113865336B discloses a waste heat recovery device for cooling sintered ore with a rotary kiln, comprising a sintering machine, a blanking hood, a cooling mechanism, a waste heat recovery device, a discharge hood and a conveying device; the feed port of the blanking hood is connected to the discharge end of the sintering machine, the discharge port of the blanking hood is connected to the cooling mechanism, the top air outlet of the blanking hood is connected to the waste heat recovery device, and the exhaust end of the waste heat recovery device is connected to the cooling mechanism through a circulating fan; this patent adopts a closed rotary kiln to cool the sintered ore, and the temperature of the hot air after heat exchange exceeds 500°C, which greatly improves the waste heat recovery efficiency, and the hot air after the heat is recovered by the waste heat recovery mechanism can still be re-sent into the rotary kiln through the circulating fan to cool the sintered ore, which can further improve the waste heat recovery efficiency.

[0004] However, the above technical solution has the following shortcomings: after the waste batteries are crushed in the crushing device, they are directly put into the rotary kiln for heating, and the waste batteries are not fully crushed. On the one hand, it increases the difficulty of heating the battery fragments and affects the processing of the battery fragments. On the other hand, once larger battery fragments are blocked in the rotary kiln, it will affect the operation of the entire device. Summary of the invention

[0005] The purpose of the present invention is to solve the problems existing in the background technology and to provide a rotary kiln for recycling waste lithium batteries with a crushing function.

[0006] The technical solution of the present invention is a rotary kiln for recycling waste lithium batteries with a crushing function, comprising: A crushing cylinder, the top of which is connected to a feed hopper; A rotary kiln is arranged below the crushing drum, and the inlet of the rotary kiln is connected to the outlet of the crushing drum; A coarse filter, which is arranged in the crushing drum and is used to screen the materials entering the rotary kiln; A crushing mechanism, which is arranged in the crushing barrel and is used to crush the material; The lifting mechanism is arranged on one side of the crushing cylinder and is used to send the material filtered by the coarse filter into the crushing mechanism for re-crushing; The driving mechanism is arranged on the crushing drum, and the output end of the driving mechanism is drivingly connected with the crushing mechanism and the lifting mechanism.

[0007] Preferably, the crushing mechanism includes a mounting shaft, a crushing roller and a crushing disk; the mounting shaft passes through the crushing drum and is rotatably connected to the crushing drum, the crushing roller is rotatably arranged in the crushing drum, the crushing roller is fixedly connected to the mounting shaft, and the crushing disk is fixedly connected to the crushing drum.

[0008] Preferably, the lifting mechanism includes a mounting cylinder, a drive shaft and a lifting auger; the mounting cylinder is fixedly connected to the crushing cylinder, the bottom of the side wall of the mounting cylinder is connected to the crushing cylinder, the top of the side wall of the mounting cylinder is connected to the crushing cylinder, the drive shaft passes through the mounting cylinder and is rotatably connected to the mounting cylinder, the lifting auger is rotatably arranged in the mounting cylinder, and the lifting auger is fixedly connected to the drive shaft.

[0009] Preferably, the driving mechanism includes an installation box, a driving motor, a driving rod, a first transmission assembly and a second transmission assembly; the installation box is fixedly connected to the crushing barrel, the installation shaft and the driving shaft both extend into the installation box, the driving motor is fixedly connected to the installation box, the driving rod is fixedly connected to the output end of the driving motor, one end of the first transmission assembly is connected to the driving rod, and the other end of the first transmission assembly is connected to the installation shaft, one end of the second transmission assembly is connected to the driving rod, and the other end of the second transmission assembly is connected to the driving shaft.

[0010] Preferably, the first transmission assembly includes a driving wheel and a driven wheel; the driving wheel and the driven wheel are both arranged in the installation box, the driving wheel is fixedly connected to the driving rod, the driven wheel is fixedly connected to the installation shaft, and the driving wheel and the driven wheel are meshed with each other.

[0011] Preferably, the second transmission assembly includes a driving sprocket, a driven sprocket and a transmission chain; the driving sprocket and the driven sprocket are both arranged in an installation box, the driving sprocket is fixedly connected to the driving rod, the driven sprocket is fixedly connected to the driving shaft, and the driving sprocket and the driven sprocket are connected through a transmission chain.

[0012] Preferably, the rotary kiln includes a fixed cylinder, a heater, a rotating cylinder and a power mechanism; the fixed cylinder is connected to the crushing cylinder, the heater is arranged on the inner wall of the fixed cylinder, the rotating cylinder is rotatably arranged in the fixed cylinder, the power mechanism is arranged on the fixed cylinder, and the output end of the power mechanism is transmission-connected to the rotating cylinder.

[0013] Preferably, the power mechanism includes a power motor, a bevel gear and a bevel gear ring; the power motor is connected to the fixed cylinder, the bevel gear is connected to the output end of the power motor, the bevel gear ring is fixedly connected to the rotating cylinder, and the bevel gear and the bevel gear ring are meshed with each other.

[0014] Preferably, the bottom end of the crushing cylinder is connected to a material guide cylinder, and one end of the material guide cylinder away from the crushing cylinder passes through the fixed cylinder and extends into the rotary cylinder.

[0015] Compared with the prior art, the above technical solution of the present invention has the following beneficial technical effects: The present invention cooperates with the coarse filter and the lifting mechanism. After the crushed small-particle battery fragments pass through the coarse filter, they enter the rotary drum through the material guide cylinder for heating. After the crushed battery fragments, larger particles enter the installation cylinder and re-enter the crushing drum for secondary crushing under the action of the lifting auger, ensuring that the particles of the battery fragments entering the rotary kiln are relatively small. This can not only improve the heating efficiency of the battery rotary kiln for the battery fragments, but also reduce the risk of clogging the rotary kiln, thereby improving the stability of the device operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A perspective view of an embodiment of the present invention; Figure 2 A cross-sectional view of an embodiment of the present invention; Figure 3 A cross-sectional view of a lifting mechanism in an embodiment of the present invention; Figure 4 A cross-sectional view of a rotary kiln in one embodiment of the present invention; Figure 5 A cross-sectional view of a driving mechanism in an embodiment of the present invention; Figure 6 A schematic diagram of the structure of a coarse filter in an embodiment of the present invention; Figure 7 This is a schematic structural diagram of a material guide barrel in an embodiment of the present invention.

[0017] Figure numerals: 1. Crushing cylinder; 2. Feed hopper; 31. Fixed cylinder; 32. Heater; 331. Power motor; 332. Bevel gear; 333. Bevel gear ring; 34. Rotating cylinder; 41. Mounting box; 42. Driving motor; 43. Driving rod; 441. Driving wheel; 442. Driven wheel; 451. Driving sprocket; 452. Driven sprocket; 453. Transmission chain; 51. Mounting shaft; 52. Crushing roller; 53. Crushing disk; 61. Mounting cylinder; 62. Driving shaft; 63. Lifting auger; 7. Coarse filter; 8. Material guide cylinder. DETAILED DESCRIPTION

[0018] Embodiment 1, as Figure 1-7 As shown, a waste lithium battery recycling rotary kiln with a crushing function proposed by the present invention comprises a crushing cylinder 1, a rotary kiln, a coarse filter 7, a crushing mechanism, a lifting mechanism and a driving mechanism; The top of the crushing cylinder 1 is connected to a feed hopper 2; The rotary kiln is arranged below the crushing drum 1, and the inlet of the rotary kiln is connected with the outlet of the crushing drum 1; The coarse filter 7 is arranged in the crushing drum 1 to screen the materials entering the rotary kiln; The crushing mechanism is arranged in the crushing barrel 1 for crushing the material; The lifting mechanism is arranged on one side of the crushing cylinder 1 to send the material filtered by the coarse filter 7 into the crushing mechanism for re-crushing; The driving mechanism is arranged on the crushing drum 1, and the output end of the driving mechanism is drivingly connected to the crushing mechanism and the lifting mechanism.

[0019] Embodiment 2, as Figure 2-3 As shown, the present invention proposes a waste lithium battery recycling rotary kiln with a crushing function. Compared with the first embodiment, this embodiment further specifically discloses the structure of the crushing mechanism; the crushing mechanism includes a mounting shaft 51, a crushing roller 52 and a crushing disk 53; the mounting shaft 51 passes through the crushing drum 1 and is rotatably connected to the crushing drum 1, the crushing roller 52 is rotatably arranged in the crushing drum 1, the crushing roller 52 is fixedly connected to the mounting shaft 51, and the crushing disk 53 is fixedly connected to the crushing drum 1.

[0020] Embodiment three, as Figure 2-3 As shown, a rotary kiln for recycling waste lithium batteries with a crushing function proposed by the present invention, compared with the second embodiment, this embodiment further specifically discloses the structure of the lifting mechanism; the lifting mechanism includes a mounting cylinder 61, a driving shaft 62 and a lifting auger 63; the mounting cylinder 61 is fixedly connected to the crushing cylinder 1, the bottom of the side wall of the mounting cylinder 61 is connected to the crushing cylinder 1, the top of the side wall of the mounting cylinder 61 is connected to the crushing cylinder 1, the driving shaft 62 penetrates the mounting cylinder 61 and is rotatably connected to the mounting cylinder 61, the lifting auger 63 is rotatably arranged in the mounting cylinder 61, and the lifting auger 63 is fixedly connected to the driving shaft 62.

[0021] Embodiment 4, as Figure 2-5As shown, a rotary kiln for recycling waste lithium batteries with a crushing function proposed by the present invention, compared with the third embodiment, this embodiment further specifically discloses the structure of the driving mechanism; the driving mechanism includes an installation box 41, a driving motor 42, a driving rod 43, a first transmission assembly and a second transmission assembly; the installation box 41 is fixedly connected to the crushing barrel 1, the installation shaft 51 and the driving shaft 62 both extend into the installation box 41, the driving motor 42 is fixedly connected to the installation box 41, the driving motor 42 is a variable frequency motor, and is electrically connected to the power supply and the control system through a wire, the driving rod 43 is fixedly connected to the output end of the driving motor 42, one end of the first transmission assembly is connected to the driving rod 43, the other end of the first transmission assembly is connected to the installation shaft 51, and one end of the second transmission assembly is connected to the driving The first transmission assembly comprises a driving wheel 441 and a driven wheel 442; the driving wheel 441 and the driven wheel 442 are both arranged in the installation box 41, the driving wheel 441 is fixedly connected to the driving rod 43, the driven wheel 442 is fixedly connected to the installation shaft 51, and the driving wheel 441 and the driven wheel 442 are meshed with each other, and the second transmission assembly comprises a driving sprocket 451, a driven sprocket 452 and a transmission chain 453; the driving sprocket 451 and the driven sprocket 452 are both arranged in the installation box 41, the driving sprocket 451 is fixedly connected to the driving rod 43, the driven sprocket 452 is fixedly connected to the driving shaft 62, and the driving sprocket 451 and the driven sprocket 452 are connected through the transmission chain 453.

[0022] Embodiment 5, as Figure 2-4 As shown, the present invention proposes a waste lithium battery recycling rotary kiln with a crushing function. Compared with the fourth embodiment, this embodiment further specifically discloses the structure of the rotary kiln; the rotary kiln includes a fixed cylinder 31, a heater 32, a rotary cylinder 34 and a power mechanism; the fixed cylinder 31 is connected to the crushing cylinder 1, the heater 32 is arranged on the inner wall of the fixed cylinder 31, the heater 32 is an electric heater and is electrically connected to the power supply and the control system through a wire, the rotary cylinder 34 is rotatably arranged in the fixed cylinder 31, one end of the rotary cylinder 34 extends to the outside of the fixed cylinder 31, the power mechanism is arranged on the fixed cylinder 31, and the power mechanism The output end is transmission connected to the rotating cylinder 34, and the power mechanism includes a power motor 331, a bevel gear 332 and a bevel gear ring 333; the power motor 331 is connected to the fixed cylinder 31, the power motor 331 is a variable frequency motor, and is electrically connected to the power supply and control system through a wire, the bevel gear 332 is connected to the output end of the power motor 331, the bevel gear ring 333 is fixedly connected to the rotating cylinder 34, the bevel gear 332 and the bevel gear ring 333 are meshed with each other, and the bottom end of the crushing cylinder 1 is connected to the material guide cylinder 8, and the end of the material guide cylinder 8 away from the crushing cylinder 1 passes through the fixed cylinder 31 and extends into the rotating cylinder 34.

[0023] The heater 32, the drive motor 42 and the power motor 331 are turned on through the control panel. The heater 32 works to heat the rotary drum 34. The drive motor 42 works to drive the driving wheel 441 and the driving sprocket 451 to rotate together through the driving rod 43. The driving wheel 441 rotates and drives the driven wheel 442, the installation shaft 51 and the crushing roller 52 to rotate together through the meshing action. The driving sprocket 451 rotates and drives the driven wheel 442, the drive shaft 62 and the lifting auger 63 to rotate together through the transmission chain 453. The power motor 331 works to rotate together with the rotary drum 34 through the bevel gear 332 and the bevel gear ring 333, and the waste batteries to be processed are sent into the crushing drum 1 through the feed hopper 2. The waste batteries are crushed under the action of the crushing roller 52 and the crushing disk 53. The crushed small-particle battery fragments pass through the coarse filter 7 and then enter the rotary drum 34 through the guide barrel 8 for heating. The crushed battery fragments that cannot pass through the coarse filter 7 enter the installation barrel 61 and re-enter the crushing drum 1 for secondary crushing under the action of the lifting auger 63.

[0024] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited thereto, and various changes can be made within the knowledge scope of technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A rotary kiln for recycling waste lithium batteries with crushing function, characterized in that: include: A crushing cylinder (1), the top of which is connected to a feed hopper (2); A rotary kiln is arranged below the crushing drum (1), and the inlet of the rotary kiln is connected to the outlet of the crushing drum (1); A coarse filter (7) is arranged in the crushing drum (1) and is used to screen the material entering the rotary kiln; A crushing mechanism, which is arranged in the crushing barrel (1) and is used to crush materials; A lifting mechanism, which is arranged on one side of the crushing cylinder (1) and is used to send the material filtered by the coarse filter (7) into the crushing mechanism for re-crushing; A driving mechanism is arranged on the crushing drum (1), and an output end of the driving mechanism is drivingly connected to the crushing mechanism and the lifting mechanism.

2. A rotary kiln for recycling waste lithium batteries with a crushing function according to claim 1, characterized in that: The crushing mechanism comprises a mounting shaft (51), a crushing roller (52) and a crushing disk (53); the mounting shaft (51) passes through the crushing drum (1) and is rotatably connected to the crushing drum (1); the crushing roller (52) is rotatably arranged in the crushing drum (1); the crushing roller (52) is fixedly connected to the mounting shaft (51); and the crushing disk (53) is fixedly connected to the crushing drum (1).

3. A waste lithium battery recycling rotary kiln with crushing function according to claim 2, characterized in that: The lifting mechanism comprises a mounting cylinder (61), a driving shaft (62) and a lifting auger (63); the mounting cylinder (61) is fixedly connected to the crushing cylinder (1); the bottom of the side wall of the mounting cylinder (61) is connected to the crushing cylinder (1); the top of the side wall of the mounting cylinder (61) is connected to the crushing cylinder (1); the driving shaft (62) passes through the mounting cylinder (61) and is rotatably connected to the mounting cylinder (61); the lifting auger (63) is rotatably arranged in the mounting cylinder (61); and the lifting auger (63) is fixedly connected to the driving shaft (62).

4. A waste lithium battery recycling rotary kiln with crushing function according to claim 3, characterized in that: The driving mechanism comprises a mounting box (41), a driving motor (42), a driving rod (43), a first transmission assembly and a second transmission assembly; the mounting box (41) is fixedly connected to the crushing barrel (1); the mounting shaft (51) and the driving shaft (62) both extend into the mounting box (41); the driving motor (42) is fixedly connected to the mounting box (41); the driving rod (43) is fixedly connected to the output end of the driving motor (42); one end of the first transmission assembly is connected to the driving rod (43); the other end of the first transmission assembly is connected to the mounting shaft (51); one end of the second transmission assembly is connected to the driving rod (43); the other end of the second transmission assembly is connected to the driving shaft (62).

5. The rotary kiln for recycling waste lithium batteries with crushing function according to claim 4 is characterized in that: The first transmission assembly comprises a driving wheel (441) and a driven wheel (442); the driving wheel (441) and the driven wheel (442) are both arranged in the installation box (41); the driving wheel (441) is fixedly connected to the driving rod (43); the driven wheel (442) is fixedly connected to the installation shaft (51); and the driving wheel (441) and the driven wheel (442) are meshed with each other.

6. A rotary kiln for recycling waste lithium batteries with a crushing function according to claim 5, characterized in that: The second transmission assembly comprises a driving sprocket (451), a driven sprocket (452) and a transmission chain (453); the driving sprocket (451) and the driven sprocket (452) are both arranged in the installation box (41); the driving sprocket (451) is fixedly connected to the driving rod (43); the driven sprocket (452) is fixedly connected to the driving shaft (62); and the driving sprocket (451) and the driven sprocket (452) are transmission-connected via the transmission chain (453).

7. The rotary kiln for recycling waste lithium batteries with crushing function according to claim 1 is characterized in that: The rotary kiln comprises a fixed cylinder (31), a heater (32), a rotating cylinder (34) and a power mechanism; the fixed cylinder (31) is connected to the crushing cylinder (1), the heater (32) is arranged on the inner wall of the fixed cylinder (31), the rotating cylinder (34) is rotatably arranged in the fixed cylinder (31), the power mechanism is arranged on the fixed cylinder (31), and the output end of the power mechanism is drivingly connected to the rotating cylinder (34).

8. The rotary kiln for recycling waste lithium batteries with crushing function according to claim 7 is characterized in that: The power mechanism comprises a power motor (331), a bevel gear (332) and a bevel gear ring (333); the power motor (331) is connected to the fixed cylinder (31), the bevel gear (332) is connected to the output end of the power motor (331), the bevel gear ring (333) is fixedly connected to the rotating cylinder (34), and the bevel gear (332) and the bevel gear ring (333) are meshed with each other.

9. The rotary kiln for recycling waste lithium batteries with crushing function according to claim 7, characterized in that: The bottom end of the crushing cylinder (1) is connected to a material guide cylinder (8), and one end of the material guide cylinder (8) away from the crushing cylinder (1) passes through the fixed cylinder (31) and extends into the rotary cylinder (34).

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