Anti-burning safety device for aluminum electrolysis cell

Abstract

The utility model belongs to the technical field of aluminum electrolysis cell protection, and particularly relates to an aluminum electrolysis cell anti-burning safety device which comprises a plurality of fixing shafts, and the interiors of the fixing shafts are hollow. A core shaft is rotatably arranged on the inner wall of the fixed shaft, and a protection assembly is wound on the core shaft; a sleeve and a rotating wheel are sequentially arranged at one end of the mandrel, a plurality of pawls are evenly distributed on the circumference of the rotating wheel, a rotating sleeve is rotatably arranged on the inner wall of the center hole, a ratchet wheel is arranged on the inner wall of the rotating sleeve, and the pawls and the ratchet wheel are connected in a matched mode. An annular mounting cavity is formed between the rotating sleeve and the mandrel, and a spring is arranged in the mounting cavity; a trigger assembly is further arranged on the fixing shaft and can fix the rotating sleeve or release fixing of the rotating sleeve. The device is used for preventing operators from missing steps and falling into the electrolytic bath and preventing scalds caused by explosion and splashing of high-temperature liquid. The protection assembly pops up through the trigger assembly to shield a heat source, a high-temperature solution, arc light and other dangerous sources.

Description

Technical Field

[0001] The utility model belongs to the technical field of aluminum electrolytic cell protection, in particular to an aluminum electrolytic cell anti-scalding safety device. Background Art

[0002] The electrolytic cell is a key equipment in aluminum electrolysis production. During operation, there is high-temperature aluminum liquid and high-temperature electrolyte liquid, with a temperature of about 950°C. The temperature is extremely high, and direct contact or proximity may cause serious burns. When changing poles, salvaging carbon slag, measuring two levels, etc., improper operation or other reasons may cause splashing of high-temperature liquid, causing personal injury. When high-temperature aluminum liquid and electrolyte liquid come into contact with damp tools, they may cause explosions. In addition, if aluminum liquid encounters water or other chemicals, chemical reactions may also occur, leading to explosions.

[0003] In the existing aluminum electrolysis production process, in order to reduce the risk of operators, individual protective measures are mainly taken, such as wearing protective clothing, protective masks, waistbands, sleeves, trousers, etc. At the same time, staff training is strengthened to improve operating skills and master the risks and coping methods of high-temperature aluminum liquid operations. However, in the aluminum electrolysis production process, when changing poles, fishing blocks, and fishing carbon slag, it is necessary to open the tank cover and the shell, and take out the pole blocks, forming a large area of ​​high-temperature solution gap area, and the operators are directly facing the high-temperature solution. Safety accidents such as scalding and splashing scalding often occur in the production process of the aluminum electrolysis industry. Utility Model Content

[0004] In view of the technical problems existing in the background technology, the utility model provides an anti-scalding safety device for an aluminum electrolytic cell.

[0005] In order to achieve the above purpose, the technical solution provided by the utility model is:

[0006] A scalding prevention safety device for an aluminum electrolytic cell comprises a plurality of fixed shafts, wherein the two ends of two adjacent fixed shafts are connected by a fixing frame, a center hole is arranged inside the fixed shaft, and an opening is arranged at the bottom end of the fixed shaft; a core shaft is rotatably arranged on the inner wall of the two ends of the center hole, a protective component is wound on the core shaft, and the protective component can extend from the opening; a sleeve and a rotating wheel are arranged in sequence at one end of the core shaft, a plurality of ratchets are evenly distributed on the circumference of the rotating wheel, a rotating sleeve is rotatably arranged on the inner wall of the center hole, a ratchet is arranged on the inner wall of the rotating sleeve, and the ratchet and the ratchet are matched and connected; an annular installation cavity is formed between the rotating sleeve and the core shaft, a spring is arranged in the installation cavity, one end of the spring is fixedly connected to the inner wall of the rotating sleeve, and the other end is fixedly connected to the outer wall of the sleeve; a trigger component is also arranged on the fixed shaft, and the trigger component can fix the rotating sleeve or release the fixation of the rotating sleeve.

[0007] Optionally, limiting rings are provided at both ends of the core shaft, the sleeve is located outside the limiting rings, and both ends of the protective component are arranged close to the limiting rings.

[0008] Optionally, one end of the core shaft extends outward from the fixed shaft and is connected to a rotating handle.

[0009] Optionally, the detachable sleeve at the end of the fixed shaft is provided with an insulating sleeve.

[0010] Optionally, the trigger assembly includes a slide cylinder, a spring and a slider, the slide cylinder is fixed on a fixed shaft, a connecting rod is provided at the bottom end of the slider, a brake block is provided at the end of the connecting rod, a slide cylinder is slidably provided on the inner wall of the slide cylinder, the slide cylinder extends to the outer end of the slide cylinder, the brake block extends into the center hole, and the brake block is arranged close to the outer wall of the rotating sleeve; a spring is provided on the outer wall of the connecting rod, one end of the spring is arranged close to the bottom end of the slider, and the other end is arranged close to the inner wall of the slide cylinder; a pin hole is provided on the slider, and a through socket is provided on the slide cylinder, the socket and the pin hole are arranged opposite to each other, and a pin is inserted to fix them.

[0011] Optionally, a pull ring is provided at the outer end of the pin, and two elastic pull ropes are provided on the pull ring, and the pull ropes are respectively connected to the slider and the fixed shaft.

[0012] Optionally, the outer wall of the rotating sleeve is provided with a circle of tooth grooves, and the bottom surface of the brake block is provided with latching teeth, and the latching teeth and the tooth grooves are cooperatively connected.

[0013] The utility model has the following advantages and beneficial effects:

[0014] The anti-scalding safety device for aluminum electrolytic cells in the utility model is designed to prevent operators from stepping into the electrolytic cells and preventing burns caused by the explosion and splashing of high-temperature liquids. The device is mainly used in electrolytic production. When it is necessary to open the electrolytic cell cover and face the electrolytic production operations such as changing poles, aluminum discharge, and salvaging carbon slag with high-temperature liquids, the device is fixed on the electrolytic cell cover by a fixing frame. First, it can prevent abnormal situations such as slipping, stepping into the air, and falling from causing personnel to fall into the electrolytic cell and cause casualties. Second, when aluminum liquid, electrolyte liquid splashes, explodes, or short circuits and sparks occur in the electrolytic cell, the trigger component is quickly activated and the protective component (insulating fabric) is popped up, which can quickly form a physical protection barrier to block dangerous sources such as heat sources, high-temperature solutions, and arc lights, leaving operators with enough time to escape and avoid injuries. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A front view of the safety device provided by the utility model;

[0016] Figure 2A schematic diagram of a pop-up protection assembly of a safety device provided by the utility model;

[0017] Figure 3 for Figure 1 A partial enlarged view of point a in the middle;

[0018] Figure 4 for Figure 3 A partial enlarged view of point b in the middle;

[0019] Figure 5 for Figure 4 A partial enlarged view of point c in the middle;

[0020] Figure 6 A diagram showing the connection structure of the ratchet, pawl and sleeve inside the rotating sleeve provided by the utility model;

[0021] Figure 7 A diagram showing the connection structure of the rotating sleeve, sleeve and mainspring provided by the utility model;

[0022] Icons: 1-fixed shaft, 11-center hole, 12-opening, 2-fixed frame, 3-insulating sleeve, 4-protective assembly, 41-counterweight, 5-core shaft, 5a-installation cavity, 51-limiting ring, 52-sleeve, 53-rotating wheel, 531-ratchet, 54-bearing one, 55-rotating handle, 6-rotating sleeve, 61-ratchet, 611-ratchet teeth, 62-bearing two, 7-slide cylinder, 71-slider, 72-spring, 73-connecting rod, 74-brake block, 8-pin, 81-pull rope, 9-spring. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solutions and advantages of the embodiments of the utility model clearer, the technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments.

[0024] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0025] Example

[0026] like Figure 1 As shown, a scalding prevention safety device for an aluminum electrolytic cell includes a plurality of fixed shafts 1. In this embodiment, two fixed shafts 1 are arranged at a fixed distance apart, and the two ends of two adjacent fixed shafts 1 are connected and fixed by a fixing frame 2 to form a frame structure.

[0027] like Figure 1 , 3 -7, a central hole 11 is provided inside the fixed shaft 1, and an opening 12 connected to the central hole 11 is provided at the bottom of the fixed shaft 1; a core shaft 5 is rotatably provided on the inner wall of both ends of the central hole 11 through a bearing 54. A protective component 4 is wound on the core shaft 5, and the protective component 4 can extend from the opening 12. The protective component 4 is in the shape of cloth or belt and is made of heat-insulating material. The core shaft 5 can rotatably wind the protective component 4 and store it in the central hole 11, and can also unwind the protective component 4 and release it from the opening 12 to the outside.

[0028] like Figure 4-7 As shown, a sleeve 52 and a rotating wheel 53 are sequentially provided at one end of the core shaft 5, and the sleeve 52 and the rotating wheel 53 are both sleeved and fixed on the core shaft 5. A number of ratchet pawls 531 are evenly distributed on the circumference of the rotating wheel 53, and a rotating sleeve 6 is rotatably provided on the inner wall of the center hole 11 through a bearing 2 62, and a ratchet 61 is provided on the inner wall of the rotating sleeve 6, and the inner wall of the ratchet 61 has ratchet teeth 611, and the pawl 531 and the ratchet 61 are matched and connected. This kind of ratchet 61 self-locking mechanism can realize the linkage of the core shaft 5 and the rotating sleeve 6. An annular installation cavity 5a is formed between the rotating sleeve 6 and the core shaft 5, and a spring 9 is provided in the installation cavity 5a, one end of the spring 9 is fixedly connected to the inner wall of the rotating sleeve 6, and the other end is fixedly connected to the outer wall of the sleeve 52. As shown Figure 7 As shown, the mainspring 9 is in a relaxed state and is not wound around the sleeve 52; when the sleeve 52 rotates counterclockwise, the mainspring 9 will be wound around the outer wall of the sleeve 52, thereby tightening the mainspring 9 and accumulating torque. A trigger assembly is also provided on the fixed shaft 1, and the trigger assembly can fix the rotating sleeve 6 or release the fixing of the rotating sleeve 6.

[0029] like Figure 7 As shown, when the trigger assembly fixes the rotating sleeve 6 (i.e., the ratchet 61 is fixed), the mandrel 5 starts to rotate counterclockwise, and the rotating wheel 53 and the ratchet 531 can rotate counterclockwise independently, and synchronously realize self-locking during the rotation, so as to realize the tightening of the mainspring 9. In this state, the winding operation of the protective assembly 4 is synchronously realized, and the protective assembly 4 is wound up and accommodated in the center hole 11. That is, when the protective assembly 4 is completely accommodated in the center hole 11, the mainspring 9 is also synchronously tightened.

[0030] Then the safety device is fixed on the electrolytic cell cover. First, it can prevent people from falling into the electrolytic cell due to abnormal situations such as slipping, stepping into the air, and falling, which may cause casualties. Second, when aluminum liquid or electrolyte liquid splashes or explodes, or when the electrolytic cell short-circuits and sparks, the trigger component is quickly activated, so that the trigger component contacts the fixing of the rotating sleeve 6. After the fixing of the rotating sleeve 6 is released, the torque accumulated by the spring 9 drives the mandrel 5, the ratchet 61, and the rotating sleeve 6 to rotate synchronously, and the protective component 4 on the mandrel 5 is unwound to the outside synchronously, that is, the protective component 4 is quickly ejected from the fixed shaft 1 (such as Figure 2 As shown in the figure, shield the heat source, high temperature solution, arc and other dangerous sources, leave enough time for the workers to escape and avoid injuries.

[0031] In order to increase the pop-up speed of the protective component 4, a counterweight 41 can be set at the head end of the protective component. The counterweight 41 can be a counterweight block, a counterweight rod, etc. When the mainspring 9 rotates to release the torque to drive the core shaft 5 to rotate, the double effect of the gravity of the counterweight 41 increases the pop-up speed of the protective component 4.

[0032] like Figure 4 As shown, limiting rings 51 are provided at both ends of the core shaft 5, the sleeve 52 is located on the outside of the limiting ring 51, and the two ends of the protective component 4 are arranged close to the limiting ring 51. The position of the protective component 4 is limited by the limiting ring 51. At the same time, the existence of the limiting ring 51 can also limit the mainspring 9.

[0033] like Figure 3 As shown, the end of the fixed shaft 1 is detachably provided with an insulating sleeve 3. One end of the core shaft 5 extends outward from the fixed shaft 1 and is connected to a rotating handle 55, which is arranged in the inner hole of the insulating sleeve 3. When winding up the protective component 4, the insulating sleeve 3 is pulled out, and the rotating handle 55 is rotated to drive the core shaft 5 to rotate, so that the winding operation of the protective component 4 can be realized.

[0034] like Figure 3-5 As shown, in the utility model, the trigger assembly includes a slide 7, a spring 72 and a slider 71. A mounting hole connected to the center hole 11 is provided on the fixed shaft 1, and the slide 7 is installed in the mounting hole, that is, the slide 7 is fixed on the fixed shaft 1. A connecting rod 73 is provided at the bottom end of the slider 71, and the connecting rod 73 passes through the fixed shaft 1 to reach the center hole 11. A brake block 74 is provided at the end of the connecting rod 73. A slide 71 is slidably provided on the inner wall of the slide 7, and one end of the slide 71 extends to the outer end of the slide 7, and the brake block 74 extends into the center hole 11. The brake block 74 is arranged close to the outer wall of the rotating sleeve 6. A spring 72 is provided on the outer wall of the connecting rod 73, and one end of the spring 72 is arranged close to the bottom end of the slide 71, and the other end is arranged close to the inner wall of the slide 7. A pin hole is provided on the slider 71, and a through socket is provided on the slide 7. The socket and the pin hole are arranged opposite to each other, and a pin 8 is inserted to fix them. As shown Figure 5As shown, at this time, the spring 72 is compressed, and the brake block 74 is tightly attached to the outer wall of the rotating sleeve 6, thereby fixing the rotating sleeve 6. When the pin 8 is pulled out, the elastic force of the spring 72 causes the slider 71 to pop out in a direction away from the slide cylinder 7, thereby separating the brake block 74 from the rotating sleeve 6, thereby releasing the fixing of the rotating sleeve 6.

[0035] Furthermore, a pull ring is provided at the outer end of the pin 8, and two elastic pull ropes 81 are provided on the pull ring, and the pull ropes 81 are respectively connected to the slider 71 and the fixed shaft 1. Such a design can fix the pin 8, and the pin 8 will not be lost after the pin 8 is quickly pulled out.

[0036] In order to enhance the connection stability between the brake block 74 and the rotating sleeve 6, a circle of tooth grooves is provided on the outer wall of the rotating sleeve 6, and a latch tooth is provided on the bottom surface of the brake block 74. The latch tooth and the tooth groove are matched and connected. The matching structure of the latch tooth and the latch groove structure can firmly realize the connection between the brake block 74 and the rotating sleeve 6.

[0037] The above is only one structure of the trigger assembly provided by the utility model, and other trigger assemblies can also be used to achieve the same function, such as using the connection drive of the cylinder and the brake block to achieve the fixation of the rotating sleeve.

[0038] The anti-scalding safety device of the utility model can act as a safety guardrail when the operator loses the center of gravity, ensuring that the risk of falling into the electrolytic cell due to slipping, unstable standing, etc. is reduced or eliminated during the electrolytic production operation. The device is made of high-temperature resistant insulating material, which can withstand repeated mechanical pressure while providing extremely strong protection performance; and acts as a protective barrier in the event of explosion splashing. When emergency situations such as accidentally using damp tools, adding damp materials, or rolling aluminum splashing during operation occur, the pull pin 8 is released from the fixing to the rotating sleeve 6, and the anti-scalding safety device can quickly pop out the protective component 4 to form a physical protective barrier to protect the staff from high-temperature solution splashing or explosion.

[0039] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may be subject to various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A safety device for preventing scalding of an aluminum electrolytic cell, comprising a plurality of fixed shafts, the two ends of two adjacent fixed shafts being connected by a fixing frame, characterized in that : A central hole is provided inside the fixed shaft, and an opening is provided at the bottom end of the fixed shaft; a core shaft is rotatably provided on the inner walls at both ends of the central hole, a protective component is wound on the core shaft, and the protective component can extend from the opening; One end of the core shaft is provided with a sleeve and a rotating wheel in sequence, a plurality of ratchets are evenly distributed on the circumference of the rotating wheel, a rotating sleeve is rotatably provided on the inner wall of the central hole, a ratchet is provided on the inner wall of the rotating sleeve, and the ratchet is cooperatively connected with the ratchet; An annular installation cavity is formed between the rotating sleeve and the core shaft, and a spring is arranged in the installation cavity, one end of the spring is fixedly connected to the inner wall of the rotating sleeve, and the other end is fixedly connected to the outer wall of the sleeve; The fixed shaft is also provided with a trigger assembly, and the trigger assembly can fix the rotating sleeve or release the fixation of the rotating sleeve.

2. The anti-scalding safety device for aluminum electrolysis cell according to claim 1, characterized in that: Limiting rings are arranged at both ends of the core shaft, the sleeve is located outside the limiting rings, and both ends of the protective component are arranged close to the limiting rings.

3. The anti-scalding safety device for aluminum electrolytic cell according to claim 1, characterized in that: One end of the core shaft extends outward from the fixed shaft and is connected with a rotating handle.

4. The anti-scalding safety device for aluminum electrolytic cell according to claim 1 or 3, characterized in that: The detachable sleeve at the end of the fixed shaft is provided with an insulating sleeve.

5. The anti-scalding safety device for aluminum electrolytic cell according to claim 1, characterized in that: The trigger assembly includes a slide cylinder, a spring and a slider, the slide cylinder is fixed on a fixed shaft, a connecting rod is provided at the bottom end of the slider, a brake block is provided at the end of the connecting rod, a slide cylinder is slidably provided on the inner wall of the slide cylinder, the slide cylinder extends to the outer end of the slide cylinder, the brake block extends into the center hole, and the brake block is arranged close to the outer wall of the rotating sleeve; a spring is provided on the outer wall of the connecting rod, one end of the spring is arranged close to the bottom end of the slider, and the other end is arranged close to the inner wall of the slide cylinder; a pin hole is provided on the slider, and a through socket is provided on the slide cylinder, the socket and the pin hole are arranged opposite to each other, and a pin is inserted to fix them.

6. The anti-scalding safety device for aluminum electrolytic cell according to claim 5, characterized in that: A pull ring is arranged at the outer end of the pin, and two elastic pull ropes are arranged on the pull ring. The pull ropes are respectively connected to the slider and the fixed shaft.

7. The anti-scalding safety device for aluminum electrolytic cell according to claim 5, characterized in that: The outer wall of the rotating sleeve is provided with a circle of tooth grooves, and the bottom surface of the brake block is provided with latching teeth, and the latching teeth are matched and connected with the tooth grooves.

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