Circulating crushing system for on-pole thermal insulation material for aluminum electrolysis

Abstract

The invention relates to the technical field of crushing devices, and particularly discloses an aluminum electrolysis electrode heat preservation material circulating crushing system which comprises a first supporting plate, a second supporting plate, a third supporting plate and a fourth supporting plate which are sequentially arranged from bottom to top, an elevator arranged on the first supporting plate and a crusher arranged on the second supporting plate. The feeding device is arranged on the third supporting plate, the screening device is connected with a discharging opening of the elevator, the storage device is connected with the screening device, and the conveying device is arranged on the fourth supporting plate; the discharging end of the feeding device is connected with a feeding port of the pulverizer, the discharging end of the pulverizer is connected with the feeding end of the elevator, and the discharging end of the feeding device and the discharging end of the screening device are connected with the feeding end of the feeding device at the same time. According to the circulating crushing system for the on-pole heat preservation material for aluminum electrolysis, unqualified powder can be efficiently and automatically crushed again.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of crushing devices, in particular to a circulating crushing system for anode thermal insulation material for aluminum electrolysis. BACKGROUND

[0002] In the aluminum electrolysis production process, the anode thermal insulation material, as a key auxiliary material, plays a core role in maintaining the thermal balance of the electrolytic cell. By forming a dense heat insulation layer on the surface of the anode carbon block, it effectively inhibits the heat conduction, convection and radiation loss of the electrolytic cell to the external environment, and plays a decisive role in reducing the power consumption per ton of aluminum and improving the energy utilization efficiency.

[0003] With the transformation and upgrading of the aluminum electrolysis industry towards large-scale and intelligentization, strict requirements are put forward for the uniformity of the particle size of the anode thermal insulation material. In the prior art, the crushing system of the anode thermal insulation material often has the problems of uneven crushing particle size, inability to automatically recycle and crush until the qualified particle size, etc., resulting in unstable quality of the thermal insulation material and affecting the efficiency and quality of aluminum electrolysis production. Some traditional crushing systems need manual intervention for secondary treatment of the thermal insulation material with unqualified particle size, which requires transferring and re-feeding (into the crushing device) of the material, which not only increases the labor intensity, but also easily causes production interruption and reduces the production efficiency. Therefore, it is of great practical significance to develop a system that can automatically recycle and crush to ensure the qualified particle size of the anode thermal insulation material. SUMMARY

[0004] The present application aims to provide a circulating crushing system for anode thermal insulation material for aluminum electrolysis, which can efficiently and automatically re-crush unqualified powder.

[0005] The present application is achieved by the following technical solutions: The circulating crushing system for anode thermal insulation material for aluminum electrolysis of the present application comprises first, second, third and fourth support plates arranged in sequence from bottom to top, an elevator arranged on the first support plate, a crusher arranged on the second support plate, a feeding device arranged on the third support plate, a screening device connected with the discharge port of the elevator, a storage device connected with the screening device, and a feeding device arranged on the fourth support plate; the discharge end of the feeding device is connected with the feeding port of the crusher, the discharge end of the crusher is connected with the feeding end of the elevator, and the discharge end of the feeding device and the discharge end of the screening device are both connected with the feeding end of the feeding device.

[0006] Further, the screening device comprises a guide device connected with the discharge port of the elevator, an inclined screen cylinder, and a driving device for driving the screen cylinder to rotate; the discharge end of the guide device is arranged inside the high end of the screen cylinder, and the low end of the screen cylinder is arranged above the feeding device.

[0007] Further, the screen drum is provided with a pair, and the screen drum is provided with a pair of opposite sides of the elevator; a pair of screen drums are connected with the material guide device and the feeding device.

[0008] Further, the material guide device includes a material guide pipe in the shape of a herringbone, the upper end of the material guide pipe is arranged directly below the discharge port of the elevator, and the lower end of the material guide pipe is arranged in a pair of screen drums.

[0009] Further, the feeding device includes a feeding hopper, the feeding hopper has a large upper end and a small lower end, and the lower end of a pair of screen drums is arranged above the feeding hopper.

[0010] Further, the screening device further includes a pair of arc-shaped discharge plates arranged on the lower side wall of the screen drum, sealing plates arranged at both ends of the discharge plate, and a discharge pipe arranged below the discharge plate; a gap is arranged between the discharge plate and the outer wall of the screen drum, the sealing plate is sealingly connected with the outer wall of the screen drum, and a pair of discharge plates are distributed along the length direction of the screen drum; the discharge pipe is arranged at one end of the discharge plate close to the feeding device; the storage device includes a plurality of storage boxes with open upper ends; the lower end of one discharge pipe is arranged in one storage box.

[0011] Further, the driving device includes a motor arranged on the fourth support plate, a driving wheel arranged on the output shaft of the motor, a driven wheel arranged on the outer wall of the screen drum, and a transmission belt connecting the driving wheel and the driven wheel.

[0012] Further, the second support plate is provided with a first conveying belt, the starting end of the first conveying belt is arranged directly below the discharge port of the crusher, and the end of the first conveying belt is arranged above the feeding end of the elevator.

[0013] Further, the third support plate is provided with a second conveying belt, the starting end of the second conveying belt is arranged directly below the feeding hopper, and the end of the second conveying belt is arranged above the feeding port of the crusher.

[0014] Further, the feeding device includes a third conveying belt arranged on the fourth support plate, and the end of the third conveying belt is arranged above the feeding hopper.

[0015] The aluminium electrolysis pole upper heat preservation material circulating crushing system has at least the following advantages and beneficial effects: in use, the material to be crushed is sent into the feeding device through the feeding device, and then sent into the crusher for crushing, the material is discharged from the lower discharge port of the crusher into the elevator, the material at the lower end of the elevator is lifted to a high position, and then sent into the screening device for screening, the fine particle material after screening is temporarily stored in the storage device, and the coarse particle material after screening is sent into the feeding device and then sent into the crusher for crushing again, so that the raw material only needs to be sent into the feeding device, the powder finally entering the storage device is all material with qualified particle size, manual complicated material transfer operation is not needed, the cost of material transfer is effectively reduced, the waste of material in the manual transfer process is reduced, the quality of the crushed material is improved, and the final production efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 A perspective view of the structure of the aluminium electrolysis pole upper heat preservation material circulating crushing system is provided for the embodiment of the present application. Figure 2 A perspective view of the structure of the aluminium electrolysis pole upper heat preservation material circulating crushing system is provided for the embodiment of the present application. Figure 3 A perspective view of the structure of the aluminium electrolysis pole upper heat preservation material circulating crushing system is provided for the embodiment of the present application. Figure 4 A perspective view of the structure of the aluminium electrolysis pole upper heat preservation material circulating crushing system is provided for the embodiment of the present application. Figure 5 A perspective view of the structure of the aluminium electrolysis pole upper heat preservation material circulating crushing system is provided for the embodiment of the present application. Figure 6 A perspective view of the structure of the aluminium electrolysis pole upper heat preservation material circulating crushing system is provided for the embodiment of the present application. Figure 7 A perspective view of the structure of the aluminium electrolysis pole upper heat preservation material circulating crushing system is provided for the embodiment of the present application.

[0017] Icon: 11-first support plate, 12-second support plate, 13-third support plate, 14-fourth support plate, 15-elevator, 16-crusher, 17-first conveyor belt, 18-second conveyor belt, 20-feeding device, 21-feeding hopper, 30-screening device, 31-material guide device, 311-material guide pipe, 32-screen cylinder, 33-driving device, 331-motor, 332-transmission belt, 34-discharge plate, 35-sealing plate, 36-discharge pipe, 40-storage device, 41-storage box, 50-feeding device, 51-third conveyor belt. DETAILED DESCRIPTION

[0018] Embodiments The present embodiments are further illustrated by the following specific examples, such as the accompanying drawings that should be considered in conjunction with the foregoing disclosure, and wherein: Figure 1 - the accompanying drawings that should be considered in conjunction with the foregoing disclosure, and wherein: Figure 7 The aluminum electrolysis pole heat preservation material circulating crushing system of the present embodiments includes, from bottom to top, a first support plate 11, a second support plate 12, a third support plate 13, and a fourth support plate 14, an elevator 15 arranged on the first support plate 11, a pulverizer 16 arranged on the second support plate 12, a feeding device 20 arranged on the third support plate 13, a screening device 30 connected to the discharge port of the elevator 15, a storage device 40 connected to the screening device 30, and a feeding device 50 arranged on the fourth support plate 14. The discharge end of the feeding device 20 is connected to the feeding port of the pulverizer 16, the discharge end of the pulverizer 16 is connected to the feeding end of the elevator 15, and the discharge end of the feeding device 50 and the discharge end of the screening device 30 are both connected to the feeding end of the feeding device 20. Specifically, in use, the material to be crushed is sent into the feeding device 20 through the feeding device 50, and then sent into the pulverizer 16 through the feeding device 20 for crushing. The pulverizer 16 discharges the crushed material from the lower end of the discharge port into the elevator 15, the elevator 15 lifts the material at the lower end to a high position, and then sends it into the screening device 30 for screening. The fine particle material after screening is temporarily stored in the storage device 40, and the coarse particle material after screening is sent into the feeding device 20 and then into the pulverizer 16 again for crushing. In this way, only the raw material needs to be sent into the feeding device 50, and the powder material finally entering the storage device 40 is all qualified material, without the need for manual and tedious material transfer operations, which can effectively reduce the cost of material transfer, reduce the waste of material during manual transfer, improve the quality of the crushed material, and improve the final production efficiency. It should be noted that, due to the large number and volume of devices in the system, the first support plate 11, the second support plate 12, the third support plate 13, and the fourth support plate 14 are essentially four floors, which are supported by support columns and other structures between each other. The elevator 15 can use a bucket elevator 15 to lift the powder material. The pulverizer 16 can use a counter-attack type pulverizer 16 to crush the material.

[0019] The screening device 30 in the embodiment comprises a material guiding device 31 connected with the discharge port of the elevator 15, an obliquely arranged screening cylinder 32, and a driving device 33 for driving the screening cylinder 32 to rotate; the discharge end of the material guiding device 31 is arranged inside the high end of the screening cylinder 32, and the low end of the screening cylinder 32 is arranged above the feeding device 20. Specifically, after the material is discharged from the discharge port of the elevator 15, it enters the screening cylinder 32 through the material guiding device 31, and the driving device 33 drives the screening cylinder 32 to rotate, thereby screening the powder in the rotating process. The fine particles enter the storage device 40 after passing through the screening cylinder 32, and the coarse particles enter the feeding device 20 from the end of the screening cylinder 32, and then are sent into the pulverizer 16 for pulverization again, wherein the side wall of the screening cylinder 32 is densely provided with sieve holes for screening, but is not shown in the drawings.

[0020] The screening cylinder 32 in the embodiment is provided in pairs, and each pair of screening cylinders 32 is arranged on the opposite sides of the elevator 15; the pair of screening cylinders 32 are connected with the material guiding device 31 and the feeding device 20 simultaneously. The material guiding device 31 comprises a material guiding pipe 311 in the shape of a herringbone, the upper end of the material guiding pipe 311 is arranged directly below the discharge port of the elevator 15, and the lower end of the material guiding pipe 311 is arranged in the pair of screening cylinders 32 respectively. Specifically, for the bucket elevator 15, due to its structural characteristics, the feeding and discharging of the elevator 15 are arranged on the opposite sides of the elevator 15 respectively, so the material guiding pipe 311 in the shape of a herringbone is used to guide the material discharged from the elevator 15 to the two ends of the material guiding pipe 311, and then the material is sent into the screening cylinder 32 for screening, wherein a channel for discharging (as shown in the accompanying drawings) can be arranged on the side wall of the material guiding pipe 311, and the material guiding pipe 311 needs to be suspended in the screening cylinder 32. When the material is discharged from the elevator 15, the flow of the material in the material guiding pipe 311 and the screening cylinder 32 is achieved by relying on its own weight. Figure 5

[0021] The feeding device 20 in the embodiment comprises a feeding hopper 21, and the feeding hopper 21 has a structure of being large at the upper end and small at the lower end, and the low ends of the pair of screening cylinders 32 are arranged above the feeding hopper 21. Specifically, the width of the upper end of the feeding hopper 21 is large enough, so that the material discharged from the ends of the pair of screening cylinders 32 and the material sent from the feeding device 20 can all enter the feeding hopper 21.

[0022] ​The screening device 30 in the embodiment further comprises a pair of arc-shaped discharge plates 34 arranged on the lower side wall of the screen cylinder 32, sealing plates 35 arranged at both ends of the discharge plates 34, and a discharge pipe 36 arranged on the lower side of the discharge plate 34; a gap is arranged between the discharge plate 34 and the outer wall of the screen cylinder 32, the sealing plate 35 is sealingly connected with the outer wall of the screen cylinder 32, and the pair of discharge plates 34 are distributed along the length direction of the screen cylinder 32; the discharge pipe 36 is arranged at one end of the discharge plate 34 close to the feeding device 20; the storage device 40 comprises a plurality of storage boxes 41 with open upper ends; and the lower end of one discharge pipe 36 is arranged in one storage box 41. Specifically, when the screen cylinder 32 rotates, the small-particle material enters the discharge plate 34 after passing through the screen holes in the side wall of the screen cylinder 32, and then enters the storage box 41 through the discharge pipe 36 for temporary storage; different diameters of screen holes are arranged in the side wall of the screen cylinder 32 inside different discharge plates 34, so that different particle sizes of the powder can be sent into different storage boxes 41.

[0023] The driving device 33 in the embodiment comprises a motor 331 arranged on the fourth support plate 14, a driving wheel arranged on the output shaft of the motor 331, a driven wheel arranged on the outer wall of the screen cylinder 32, and a transmission belt 332 connecting the driving wheel and the driven wheel. Specifically, the screen cylinder 32 can be driven to rotate along its axis by the transmission belt 332, or a chain wheel and chain driving mode or gear driving can be used. The support device is arranged at both ends of the screen cylinder 32 to support the screen cylinder 32.

[0024] The first conveying belt 17 is arranged on the second support plate 12 in the embodiment, the starting end of the first conveying belt 17 is arranged directly below the discharge port of the crusher 16, and the end of the first conveying belt 17 is arranged above the feeding end of the elevator 15. Specifically, the first conveying belt 17 is used to send the crushed powder of the crusher 16 into the elevator 15, wherein the first conveying belt 17 is used for transportation, which can better control the flow of the material, or an inclined slide plate can be arranged directly below the crusher 16, and the powder can directly slide into the elevator 15 through the slide plate.

[0025] The second conveying belt 18 is arranged on the third support plate 13 in the embodiment, the starting end of the second conveying belt 18 is arranged directly below the feeding hopper 21, and the end of the second conveying belt 18 is arranged above the feeding port of the crusher 16. Specifically, the material discharged from the lower end of the feeding hopper 21 falls onto the second conveying belt 18, and then is sent into the crusher 16 for crushing through the second conveying belt 18.

[0026] The feeding device 50 in the embodiment comprises a third conveying belt 51 arranged on the fourth support plate 14, and the end of the third conveying belt 51 is arranged above the feeding hopper 21. Specifically, the initial material can be directly sent onto the third conveying belt 51, and then is sent into the feeding hopper 21 through the third conveying belt 51.

[0027] In summary, the polar upper heat preservation material circulating crushing system for aluminum electrolysis of the embodiment, in use, the material to be crushed is sent into the feeding device 50, then into the feeding device 20, and then into the crusher 16 for crushing. The crushed material is discharged from the lower discharge port into the elevator 15, which lifts the material to a high place and then sends it into the screening device 30 for screening. The fine particle material after screening is temporarily stored in the storage device 40, and the coarse particle material after screening is sent into the feeding device 20 and then into the crusher 16 for crushing again. In this way, only the raw material needs to be sent into the feeding device 50, and the powder in the storage device 40 is all qualified material, without the need for manual and tedious material transfer operation, which can effectively reduce the cost of material transfer, reduce the waste of material in the manual transfer process, improve the quality of the crushed material, and improve the final production efficiency.

[0028] The above is only the preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A system for recycling and crushing the anode baking material for aluminum electrolysis, characterized in that: The invention comprises a first support plate (11), a second support plate (12), a third support plate (13) and a fourth support plate (14) which are arranged in sequence from bottom to top, an elevator (15) arranged on the first support plate (11), a crusher (16) arranged on the second support plate (12), a feeding device (20) arranged on the third support plate (13), a screening device (30) connected to a discharge port of the elevator (15), a storage device (40) connected to the screening device (30), and a feeding device (50) arranged on the fourth support plate (14); The discharge end of the feeding device (20) is connected to the feed port of the crusher (16), the discharge end of the crusher (16) is connected to the feed end of the elevator (15), and the discharge end of the feeding device (50) and the discharge end of the screening device (30) are simultaneously connected to the feed end of the feeding device (20).

2. The cycle breaker system for the anode baking material of the aluminum electrolysis according to claim 1, characterized in that: The screening device (30) includes a material guide device (31) connected to the discharge port of the elevator (15), an inclined screen drum (32), and a driving device (33) for driving the screen drum (32) to rotate; The discharge end of the material guiding device (31) is arranged inside the upper end of the sieve drum (32), and the lower end of the sieve drum (32) is arranged above the feeding device (20).

3. The cycle breaker system for the anode baking material of the aluminum electrolysis as claimed in claim 2, characterized in that: The sieve drums (32) are provided in pair, and the pair of sieve drums (32) are respectively provided on opposite sides of the elevator (15); A pair of screen drums (32) are connected to the material guiding device (31) and the feeding device (20) at the same time.

4. The system according to claim 3, wherein the system further comprises a crusher. The material guiding device (31) comprises a material guiding pipe (311) in a herringbone shape, the upper end of the material guiding pipe (311) is arranged directly below the discharge port of the elevator (15), and the lower end of the material guiding pipe (311) is respectively arranged in a pair of the screen cylinders (32).

5. The cycle breaker system for the anode baking material of the aluminum electrolysis according to claim 3, characterized in that: The feeding device (20) comprises a feeding hopper (21), the feeding hopper (21) is a structure with a larger upper portion and a smaller lower portion, and the lower ends of a pair of sieve cylinders (32) are both arranged above the feeding hopper (21).

6. The cycle breaker system for the anode baking material of the aluminum electrolysis according to claim 2, characterized in that: The screening device (30) further includes a pair of arc-shaped discharge plates (34) provided on the lower side wall of the screen drum (32), sealing plates (35) provided at both ends of the discharge plates (34), and a discharge pipe (36) provided on the lower side of the discharge plates (34); A gap is provided between the discharge plate (34) and the outer wall of the sieve drum (32); the sealing plate (35) is rotatably connected to the outer wall of the sieve drum (32); a pair of the discharge plates (34) are distributed along the length direction of the sieve drum (32); the discharge pipe (36) is provided at one end of the discharge plate (34) close to the feeding device (20); the storage device (40) includes a plurality of storage boxes (41) with upper ends opened; The lower end of a discharge pipe (36) is arranged in a storage box (41).

7. The cycle breaker system for the anode baking material of the aluminum electrolysis according to claim 2, characterized in that: The driving device (33) comprises a motor (331) arranged on the fourth support plate (14), a driving wheel arranged on an output shaft of the motor (331), a driven wheel arranged on an outer wall of the screen cylinder (32), and a transmission belt (332) connecting the driving wheel and the driven wheel.

8. The cycle breaker system for the anode baking material of the aluminum electrolysis according to claim 1, characterized in that: The second support plate (12) is provided with a first conveying belt (17), and a starting end of the first conveying belt (17) is arranged directly below a discharge port of the pulverizer (16); and an end of the first conveying belt (17) is arranged above a feeding end of the elevator (15).

9. The cycle breaker system for the anode baking material of the aluminum electrolysis according to claim 5, characterized in that: The third support plate (13) is provided with a second conveying belt (18), and a starting end of the second conveying belt (18) is arranged directly below the feeding hopper (21); and an end of the second conveying belt (18) is arranged above a feeding port of the pulverizer (16).

10. The cycle breaker system for the anode baking material of the aluminum electrolysis according to claim 1, characterized in that: The feeding device (50) comprises a third conveying belt (51) arranged on the fourth support plate (14), and an end of the third conveying belt (51) is arranged above the feeding hopper (21).

Images