Hammerhead sticky bag automatic cleaning device in aluminum electrolysis cell crust breaking process

Abstract

The invention provides an automatic cleaning device for a hammerhead sticky bag in a crust breaking process of an aluminum electrolysis cell, and aims to solve the problems of low efficiency and equipment loss caused by the hammerhead sticky bag. The device comprises a driving mechanism, a transmission mechanism, a hammer head beating mechanism and a hammer head cutting mechanism. The driving mechanism is composed of a gear and a rack which are fixed to the exposed end and the internally exposed end of the hammer head respectively. The transmission mechanism comprises a gear shaft, a steel wire rope and a static pulley, and drives the gear shaft to rotate through gear-rack meshing. The hammering head package mechanism is composed of a protection plate, a support, a reset spring and a cleaning hammer, the front end of the cleaning hammer is connected with the support through the reset spring, and the rear end of the cleaning hammer is connected with the static pulley in a winding mode through a steel wire rope and linked with the gear shaft to achieve hammering action. And the cutting hammer head package mechanism comprises a cutting blade fixed at the exposed end of the hammer head and is used for removing residual sticking substances. Through cooperative work of multiple mechanisms, a cleaning hammer is automatically triggered to knock and a blade is automatically triggered to cut in the lifting process of the hammer head, a crust head bag is effectively stripped, manual intervention is reduced, crust breaking precision and efficiency are improved, and the automatic crust breaking device is suitable for automatic cleaning operation in special environments such as high temperature and corrosion.

Description

Technical Field

[0001] The invention relates to the technical field of aluminum electrolysis shelling, in particular to an automatic cleaning device for hammer head sticking during the shelling process of an aluminum electrolytic cell. Background Art

[0002] Background technology of aluminum electrolysis shelling system involves aluminum electrolytic cell. During the production process of aluminum electrolysis, the working temperature of aluminum electrolytic cell is usually above 900°C. The bauxite (or alumina) and the generated aluminide in the electrolytic cell will melt or adhere at high temperature. Due to long-term operation, high temperature, corrosion and electrolyte reaction, the inner wall of the aluminum electrolytic cell is prone to form a hard electrolyte shell (commonly known as "shell"). In normal production, each electrolytic cell has 6 sets of shelling mechanisms, and each set of shelling mechanisms shells once every 60 seconds on average. After several shellings, some shelling hammers will stick to thick electrolyte to form a shell head bag. The so-called shelling hammer is fixed to the bottom of the cylinder by a clamp ring and reciprocates under the push of the cylinder.

[0003] Invention patent 202011637399.6 discloses an automatic shell cleaning device for an aluminum electrolytic cell, which is connected to a cleaning hammer mechanism through a gear linkage mechanism on a fixed plate, and can automatically process the shell head package. The problem with this device is that the cleaning hammer mechanism is only installed on one side of the fixed plate, and the electrolyte shell layer is distributed on both sides of the shelling hammer head, and the electrolyte layer shell on the hammer head cannot be completely cleaned by striking the shelling hammer head with a cleaning hammer. Summary of the invention

[0004] In view of the above technical problems, the purpose of the present invention is to provide an automatic cleaning device for hammer head sticking during the shelling process of an aluminum electrolytic cell. Hammer head bag cleaning devices are installed on both sides of the shelling hammer head, and residual dirty matter is also processed by the cutting blade, thereby eliminating a series of problems caused by long hammer head bags such as blocking the feed port, reducing manual intervention, and greatly improving the efficiency of shelling.

[0005] The technical problem solved by the present invention can be achieved by adopting the following technical solutions:

[0006] An automatic cleaning device for hammer head sticking during shelling process of aluminum electrolytic cell, characterized in that it comprises a driving mechanism, a transmission mechanism, a hammer head sticking mechanism and a cutting hammer head sticking mechanism;

[0007] The driving mechanism includes a gear and a rack. The gear is fixed to the exposed end of the shell hammer head, and the rack is fixed to the exposed end of the shell hammer head. The number of rack teeth should ensure that the mechanism has sufficient travel.

[0008] The transmission mechanism includes a gear shaft, a wire rope, and a static pulley. The gear shaft is installed on the gear and is driven to rotate by the meshing of the gear rack. The wire rope is connected to the gear shaft and provides tension to the wire rope through the rotation of the gear shaft. The static pulley is set on the protective plate.

[0009] The hammer head bag mechanism includes a protective plate, a bracket, a reset spring and a cleaning hammer. The protective plate is arranged on the outer wall circumference of the shell hammer head. The bracket and the reset spring are fixed on the protective plate. The rear end of the cleaning hammer is fixed on the rotatable bracket. The bracket can ensure the stability of the hammering action of the cleaning hammer. The tail of the cleaning hammer is connected to the static pulley through the wire rope and linked with the gear shaft. The middle part of the cleaning hammer is connected to the reset spring. When the cleaning hammer is pulled by the wire rope to change its state, the reset spring will restore it to its initial position through elastic force.

[0010] The cutting hammer head package mechanism comprises a cutting blade, which is fixed at the inner exposed end of the shell beating hammer head. The residual adhesive is automatically removed through the reciprocating motion of the shell beating hammer head.

[0011] The shell-breaking hammer head drives the rack, the gear and the rack mesh to drive the gear shaft, the gear shaft drives the wire rope, the wire rope is connected to the cleaning hammer through the static pulley, the cleaning hammer realizes the hammering action on the rotatable bracket, and the reset spring restores the cleaning hammer to its original state through its own elastic force.

[0012] In addition, the driving mechanism, transmission mechanism, hammer head package mechanism and cutting hammer head package mechanism should be symmetrically installed on both sides of the shelling hammer head to ensure the stability of the overall cleaning device.

[0013] In addition, the rack provides rotation to the gear through the reciprocating motion of the shell-breaking hammer head, and the gear shaft rotates accordingly through the cooperation with the gear, and the gear shaft pulls the wire rope through the static pulley.

[0014] In addition, the gear and the rack are connected to the cleaning hammer through the gear shaft and the wire rope.

[0015] In addition, the steel wire rope is wound around a hole on the gear shaft and is accompanied by a rope groove.

[0016] In addition, the cutting blade refers to the electrolyte that is mostly shed during the return stroke of the shelling hammer and the vibration generated by the cleaning hammer mechanism, and the unshed electrolyte is cut and utilized by the cutting blade. After the process is completed, most of the electrolyte adhered to the surface of the hammer can be cleaned, which can meet the requirements of electrolytic production.

[0017] The present invention has the following advantages: (1) The design of each mechanism, including the drive, transmission, hammer head package and cutting hammer head package, is compact and efficient, ensuring the stability and durability of the device, while also facilitating maintenance and operation; (2) The design of symmetrical installation on both sides of the shell hammer head enables the device to balance the force during operation, avoiding deflection or damage of the equipment due to uneven force, thereby enhancing the stability and durability of the equipment; (3) The combined design of the cleaning hammer mechanism and the cutting blade mechanism allows most of the electrolyte to fall off during the vibration process, and the remaining part is further cleaned by the cutting blade to ensure that the surface of the hammer head is clean and meets production needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of an automatic cleaning device for hammer head sticking during shell breaking process of aluminum electrolytic cell according to the present invention; Figure 2 It is a structural schematic diagram of a driving mechanism of an automatic cleaning device for hammer head sticking during shelling process of an aluminum electrolytic cell according to the present invention; Figure 3 It is a structural schematic diagram of a transmission mechanism of an automatic cleaning device for hammer head sticking during shelling process of an aluminum electrolytic cell according to the present invention; Figure 4 It is a structural schematic diagram of a hammer head bagging mechanism of an automatic cleaning device for hammer head sticking bagging during shelling of an aluminum electrolytic cell according to the present invention; Figure 5 It is a structural schematic diagram of a hammer head package cutting mechanism of an automatic cleaning device for hammer head sticking package in the shell breaking process of an aluminum electrolytic cell according to the present invention; Figure 6 It is a schematic diagram of a movement state 1 of a hammer head bag cleaning device for automatically cleaning hammer head bag during the shelling process of an aluminum electrolytic cell according to the present invention; Figure 7 It is a schematic diagram of movement state 2 of a hammer head bag cleaning device for automatically cleaning hammer head bag during the shelling process of an aluminum electrolytic cell according to the present invention.

[0019] Among them, 10-hammer head packaging mechanism, 20-transmission mechanism, 30-driving mechanism, 40-shelling cylinder, 50-shelling hammer head, 60-cutting hammer head packaging mechanism, 31-gear, 32-rack, 21-static pulley, 22-wire rope, 23-gear shaft, 11-reset spring, 12-cleaning hammer, 13-bracket, 15-protective plate, 61-cutting blade. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work, any modifications, equivalent substitutions, improvements, etc., should be included in the protection scope of the present invention.

[0021] See also Figure 1 The present invention relates to an automatic cleaning device for hammer head sticking during shelling process of aluminum electrolytic cell, comprising a driving mechanism 30, a transmission mechanism 20, a hammer head sticking mechanism 10 and a cutting hammer head sticking mechanism 60, which are symmetrically installed on both sides of the shelling hammer head.

[0022] See also Figure 2 The driving mechanism 30 includes a gear 31 and a rack 32 . The gear 31 is fixed to the exposed end of the shell-breaking hammer 50 , and the rack 32 is fixed to the supporting rod at the exposed end of the shell-breaking hammer 50 .

[0023] See also Figure 3 The transmission mechanism 20 includes a gear shaft 23, a steel wire rope 22, and a static pulley 21. The gear shaft 23 is installed on the gear 31, the steel wire rope 22 is connected to the gear shaft 23, and the static pulley 21 is set on the protective plate.

[0024] See also Figure 4 The hammer head bag mechanism 10 includes a protective plate 15, a bracket 13, a reset spring 11 and a cleaning hammer 12. The protective plate 15 is arranged on the outer wall circumference of the shell breaking hammer head 50, the bracket 13 and the reset spring 11 are fixed on the protective plate 15, the rear end of the cleaning hammer 12 is fixed on the rotatable bracket 13, the tail of the cleaning hammer 12 is connected to the static pulley 21 and the gear shaft 23 in sequence through a steel wire rope 22, and the middle part of the cleaning hammer 12 is connected to the reset spring 11.

[0025] See also Figure 5 The cutting hammer head package mechanism 60 includes a cutting blade 61, and the cutting blade 61 is fixed to the inner exposed end of the shelling hammer head 50.

[0026] See also Figure 6 When the shelling hammer head 50 moves downward to break the shell, the support rod of the shelling hammer head 50 drives the rack 32 to move downward, the rack 32 contacts the gear 31, the gear 31 will rotate clockwise, the gear 31 drives the gear shaft 23, and the wire rope 22 connected to the right side of the gear shaft 23 moves to the left for a period of time. The cleaning hammer 12 will keep a distance from the shelling hammer head 50, and the cleaning hammer 12 will automatically restore to its original state through the reset spring 11.

[0027] See also Figure 7 When the shelling hammer head 50 moves upward, the support rod of the shelling hammer head 50 drives the rack 32 to move upward, and the rack 32 drives the gear 31 to rotate counterclockwise. The wire rope 22 connected to the right side of the gear shaft 23 is connected to the cleaning hammer 12 through the static pulley 21. The cleaning hammer 12 will hit the solid part of the shelling hammer head 50 under the pull of the wire rope 22 and the return spring 11. When the gear 31 and the rack 32 are engaged and the transmission is completed, the cleaning hammer 12 will return to its original position under the push of the return spring 11.

[0028] Most of the electrolyte falls off during the return stroke of the shelling hammer 50 and the vibration generated by the hammer head bag mechanism 10, and the remaining electrolyte is cut and utilized by the cutting blade 61.

[0029] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An automatic cleaning device for hammer head sticking during shelling process of aluminum electrolytic cell, characterized in that: It includes a driving mechanism 30, a transmission mechanism 20, a hammer head package mechanism 10 and a cutting hammer head package mechanism 60; The driving mechanism 30 includes a gear 31 and a rack 32. The gear 31 is fixed to the exposed end of the shell hammer 50, and the rack 32 is fixed to the exposed end of the shell hammer 50. The number of teeth of the rack 32 should ensure that the mechanism has sufficient travel. The transmission mechanism 20 includes a gear shaft 23, a wire rope 22, and a static pulley 21. The gear shaft 23 is mounted on a gear 31. The gear shaft 23 is driven to rotate by the meshing of the gear 31 and the rack 32. The wire rope 22 is connected to the gear shaft 23. The rotation of the gear shaft 23 provides tension to the wire rope 22. The static pulley 21 is set on the protective plate 15. The hammer head bag mechanism 10 includes a protective plate 15, a bracket 13, a reset spring 11 and a cleaning hammer 12. The protective plate 15 is arranged on the outer wall circumference of the shell hammer head 50. The bracket 13 and the reset spring 11 are fixed on the protective plate 15. The rear end of the cleaning hammer 12 is fixed on the rotatable bracket 13. The bracket 13 can ensure the stability of the hammering action of the cleaning hammer 12. The tail of the cleaning hammer 12 is connected to the static pulley 21 through the wire rope 22 and linked with the gear shaft 23. The middle part of the cleaning hammer 12 is connected to the reset spring 11. When the cleaning hammer 12 is pulled by the wire rope 22 to change its state, the reset spring 11 will restore it to its initial position through elastic force. The cutting hammer head package mechanism 60 includes a cutting blade 61 , which is fixed to the inner exposed end of the shelling hammer head 50 . The shelling hammer head 50 can automatically remove the residual adhesive through the reciprocating motion of the shelling hammer head 50 .

2. The automatic cleaning device for hammer head sticking during shelling process of aluminum electrolytic cell according to claim 1 is characterized in that: The shell breaking hammer head 50 drives the rack 32, the gear 21 meshes with the rack 32 to drive the gear shaft 23, the gear shaft 23 drives the wire rope 22, the wire rope 22 is connected to the cleaning hammer 12 through the static pulley 21, the cleaning hammer 12 realizes the hammering action on the rotatable bracket 13, and the reset spring 11 restores the cleaning hammer 12 to its original state through its own elastic force.

3. The automatic cleaning device for hammer head sticking during shelling process of aluminum electrolytic cell according to claim 1 is characterized in that: The gear 31 and the rack 32 are connected to the cleaning hammer 12 through the gear shaft 23 and the wire rope 22 .

4. The automatic cleaning device for hammer head sticking during shelling process of aluminum electrolytic cell according to claim 1 is characterized in that: The steel wire rope 22 is wound around a hole on the gear shaft 23 and is provided with a rope groove.

5. The automatic cleaning device for hammer head sticking during shelling process of aluminum electrolytic cell according to claim 1 is characterized in that: The cutting blade 61 is used for cutting the electrolyte which is mostly dropped during the return stroke of the shell breaking hammer 50 and the vibration generated by the cleaning hammer mechanism, and the electrolyte which is not dropped is cut by the cutting blade 61 .

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