Cathode carbon block heating device

Abstract

The utility model belongs to the technical field of electrolytic aluminum, and particularly relates to a cathode carbon block heating device which comprises two parallel rails arranged on a foundation, a cover body arranged on the heating area and a burner arranged in the cover body, wherein the two parallel rails are sequentially divided into a loading area, a heating area and an assembling area along the length direction of the rails; the cover body is connected with the lifting mechanism; the loading base is arranged on the track in a sliding manner and is connected with the telescopic mechanism; the limiting devices are arranged on the foundation and are respectively arranged on the loading area, the heating area and the assembling area; the buffering device is arranged at the bottom end of the carrying base, and the limiting device can stretch out and abut against the buffering device. According to the production process of the cathode carbon block, stable buffer parking in a loading area, a heating area and an assembling area is achieved, and parking impact is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of electrolytic aluminum, and particularly relates to a heating device for cathode carbon blocks. Background Art

[0002] In the electrolytic aluminum industry, cathode carbon blocks are essential in the production of electrolytic aluminum. The cathode carbon blocks in aluminum electrolysis are used to carry the cathode part in the electrolytic cell for aluminum, and their function is to provide a surface for the electrodeposition of aluminum, thereby realizing the electrolytic production of aluminum.

[0003] After the cathode carbon blocks are produced, conductive steel bars need to be cast on the cathode carbon blocks. Generally, the phosphorus cast iron casting method is used to connect the cathode carbon blocks and the steel bars into one body. Therefore, before casting, the cathode carbon blocks need to be heated to meet the casting requirements. Currently, for the heating device of cathode carbon blocks, generally, the cathode carbon blocks are arranged on a base that can reciprocate horizontally, and the horizontal movement is realized by the telescopic movement of a hydraulic cylinder, so as to send the cathode carbon blocks to the position of the heating device for heating. However, due to the large stroke of the hydraulic cylinder, the large weights of the cathode carbon blocks and the base, and the large number of positions where the cathode carbon blocks stay, when the hydraulic cylinder reaches the corresponding designated position, it will stop suddenly. Without a buffer device, it is very easy to cause the hydraulic cylinder to release pressure, and at the same time, it is very difficult to ensure the accuracy of the parking position, resulting in a deviation in the parking position. Summary of the Utility Model

[0004] Aiming at the technical problems existing in the background art, the utility model provides a heating device for cathode carbon blocks.

[0005] To achieve the above object, the technical solution provided by the utility model is as follows:

[0006] A heating device for cathode carbon blocks includes: two parallel tracks arranged on the foundation, which are sequentially divided into a loading area, a heating area, and an assembly area along the length direction of the tracks; a cover body arranged in the heating area, and a burner is arranged inside the cover body, and the cover body is connected to a lifting mechanism; a load-carrying base slidably arranged on the tracks, and the load-carrying base is connected to a telescopic mechanism; several limiting devices arranged on the foundation, and the limiting devices are respectively arranged in the loading area, the heating area, and the assembly area; a buffer device arranged at the bottom end of the load-carrying base, and the limiting device can extend out and abut against the buffer device.

[0007] Optionally, the limiting device includes a hydraulic cylinder I, a piston rod I, and a limiting plate. The end of the piston rod I of the hydraulic cylinder I is connected to the limiting plate. The hydraulic cylinder I is arranged inside the foundation, and the limiting plate can extend out to the upper part of the foundation.

[0008] Optionally, the buffer device includes a fixed shaft, a sliding cylinder, and a first spring. Two limit rings are symmetrically arranged on the fixed shaft. Two sliding cylinders are symmetrically arranged on the fixed shaft. The outer diameter of the limit ring is smaller than the inner diameter of the sliding cylinder. One end of the sliding cylinder extends to form a guiding cylinder. The inner diameter of the sliding cylinder is larger than the inner diameter of the guiding cylinder. The guiding cylinder is slidably arranged on the fixed shaft, and the ends of the two sliding cylinders are mutually attached and connected. A first spring is respectively arranged inside both ends of the sliding cylinder. The first spring is sleeved on the fixed shaft, and one end of the first spring abuts against the limit ring.

[0009] Optionally, a second spring is sleeved on both ends of the fixed shaft respectively. Both ends of the fixed shaft are respectively connected to a fixed block. The second spring is arranged between the guiding cylinder and the fixed block.

[0010] Optionally, a connecting flange is arranged at one end of the sliding cylinder. A butting block extends from one side of the connecting flange.

[0011] Optionally, a notch is arranged at the bottom end of the fixed block. The end of the fixed shaft is arranged in the notch. A connecting hole is arranged at the end of the fixed shaft. Through holes opposite to the connecting hole are arranged on both sides of the fixed block. The through holes and the connecting hole are opposite and fixed by a locking bolt.

[0012] Optionally, the fixed block is fixed to the bottom end of the load-carrying base.

[0013] Optionally, the telescopic mechanism is a second hydraulic cylinder. The piston rod two of the second hydraulic cylinder is connected to the load-carrying base. A rod chamber pipeline and a rodless chamber pipeline are respectively arranged at both ends of the second hydraulic cylinder. The rod chamber pipeline and the rodless chamber pipeline are connected to a reversing valve block. The rod chamber pipeline and the rodless chamber pipeline are communicated through an oil return pipeline. A valve body is arranged on the oil return pipeline.

[0014] The present utility model has the following advantages and beneficial effects:

[0015] In the cathode carbon block heating device of the present utility model, for the production process of the cathode carbon block, limit devices are arranged on the foundations of the loading area, the heating area, and the assembly area. At the same time, a buffer device is arranged at the bottom end of the load-carrying base. When the telescopic mechanism drives the load-carrying base to stop by telescoping, the limit device extends out and abuts against the buffer device, thereby playing a buffering role and gradually unloading the force to achieve a smooth stop. Description of the Drawings

[0016] Figure 1 It is a top view of the cathode carbon block heating device provided by the present utility model;

[0017] Figure 2 It is Figure 1 the front view of;

[0018] Figure 3 It is Figure 1Half-sectional view;

[0019] Figure 4 is Figure 3 An enlarged view of a partial structure in;

[0020] Figure 5 A sectional view of the buffer device provided by the present utility model;

[0021] Figure 6 A front view of the sliding cylinder provided by the present utility model;

[0022] Figure 7 A hydraulic connection structure diagram of the second hydraulic cylinder provided by the present utility model;

[0023] Icon: 1 - Rail, 2 - Second hydraulic cylinder, 21 - Second piston rod, 24 - Rod chamber pipeline, 22 - Directional valve block, 23 - Rodless chamber pipeline, 25 - Oil return pipeline, 26 - Valve body, 3 - Load-carrying base, 31 - Connecting block, 4 - Cathode carbon block, 5 - Cover body, 51 - Guide seat, 52 - Guide rod, 6 - Third hydraulic cylinder, 61 - Third piston rod, 9 - Burner, 7 - Limiting device, 71 - First hydraulic cylinder, 72 - First piston rod, 73 - Limiting plate, 8 - Buffer device, 81 - Sliding cylinder, 811 - Guide cylinder, 812 - Connecting flange, 813 - Contact block, 814 - Mounting hole, 82 - Fixed shaft, 821 - Limiting ring, 822 - Connecting hole, 83 - Second spring, 84 - First spring, 85 - Fixed block, 851 - Notch. Detailed implementation manners

[0024] To make the objectives, technical solutions, and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model.

[0025] Therefore, the following detailed description of the embodiments of the present utility model provided in the drawings is not intended to limit the scope of the present utility model to be protected, but merely represents selected embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts fall within the scope of protection of the present utility model.

[0026] Embodiment

[0027] Such as Figures 1 to 7As shown in the figure, a heating device for cathode carbon blocks includes: two parallel tracks 1 arranged on the foundation, which are sequentially divided into a loading area A, a heating area B, and an assembly area C along the length direction of the track 1. A cover body 5 is arranged on the heating area B, and a burner 9 is arranged inside the cover body 5 for roasting and heating the cathode carbon block 4. The cover body 5 is connected to a lifting mechanism. Specifically, the lifting mechanism is a hydraulic cylinder three 6 arranged on the foundation. The piston rod three 61 of the hydraulic cylinder three 6 is connected to the cover body 5. A guide rod 52 is also arranged on the foundation. Guide seats 51 are arranged on both sides of the cover body 5, and the guide seats 51 are slidably arranged on the guide rod 52 to realize the lifting limit of the cover body 5. A load-carrying base 3 slidably arranged on the track 1 is connected to a telescopic mechanism. Specifically, a connecting block 31 is arranged at the bottom of the load-carrying base 3. The telescopic mechanism is a hydraulic cylinder two 2 arranged on the foundation. The piston rod two 21 of the hydraulic cylinder two 2 is connected to the connecting block 31 to realize the reciprocating horizontal movement of the load-carrying base 3. A plurality of limiting devices 7 are arranged on the foundation, and the limiting devices 7 are respectively arranged on the loading area A, the heating area B, and the assembly area C. A buffer device 8 is arranged at the bottom end of the load-carrying base 3. The buffer device 8 is an elastic and compressible buffer assembly. The limiting device 7 can extend out and abut against the buffer device 8, thereby compressing the buffer assembly to realize deceleration and buffer parking.

[0028] The cathode carbon block 4 is loaded on the load-carrying base 3 in the loading area A through hoisting equipment such as an overhead crane, and then transported to the heating area B through the telescopic mechanism. The cover body 5 descends to cover the cathode carbon block 4 on the load-carrying base 3 to form a sealed combustion heating chamber. After the cathode carbon block 4 is heated, it is transported from the heating area B to the assembly area C for phosphor cast iron pouring to realize the casting connection between the cathode carbon block 4 and the steel bar.

[0029] In the heating device for cathode carbon blocks of the present utility model, for the production process of the cathode carbon block 4, limiting devices 7 are arranged on the foundations of the loading area A, the heating area B, and the assembly area C, and a buffer device 8 is arranged at the bottom end of the load-carrying base 3. When the telescopic mechanism drives the load-carrying base 3 to stop, the limiting device 7 extends out and abuts against the buffer device 8, thereby playing a buffering role, gradually unloading the force and parking smoothly, and reducing the parking impact.

[0030] As Figures 1 to 7 shown, the limiting device 7 includes a hydraulic cylinder one 71, a piston rod one 72, and a limiting plate 73. The end of the piston rod one 72 of the hydraulic rod one is connected to the limiting plate 73. The hydraulic cylinder one 71 is arranged inside the foundation, and the limiting plate 73 can extend to the upper part of the foundation to abut against the buffer device 8.

[0031] As Figures 1 to 7As shown in the figure, the buffer device 8 includes a fixed shaft 82, a sliding cylinder 81, and a first spring 84. Two limit rings 821 are symmetrically arranged on the fixed shaft 82, and two sliding cylinders 81 are symmetrically arranged on the fixed shaft 82. The outer diameter of the limit ring 821 is smaller than the inner diameter of the sliding cylinder 81; one end of the sliding cylinder 81 extends to be provided with a guide cylinder 811, and the inner diameter of the sliding cylinder 81 is larger than the inner diameter of the guide cylinder 811; the guide cylinder 811 is slidably arranged on the fixed shaft 82, and the ends of the two sliding cylinders 81 are mutually attached and connected; a first spring 84 is respectively arranged inside both ends of the sliding cylinder 81, the first spring 84 is sleeved on the fixed shaft 82, and one end of the first spring 84 abuts against the limit ring 821. A connecting flange 812 is arranged at one end of the sliding cylinder 81, and the two sliding cylinders 81 are detachably connected and fixed through the mounting holes 814 on the connecting flange 812. A butting block 813 extends from one side (bottom side) of the connecting flange 812. With such a design, by using the two first springs 84 which are arranged inside the sliding cylinder 81 and can be protected, the buffer device 8 can play a buffering role in both reciprocating directions. When buffer parking is required, the first hydraulic rod controls the limit plate 73 to rise to the height position of the butting block 813. When the load base 3 is horizontally moved to drive the butting block 813 to abut against the limit plate 73, one of the first springs 84 is gradually compressed, thereby playing a role in buffer parking. This structure can achieve buffer parking in both forward and reverse directions. The overall structure of this buffer structure is simple, convenient for disassembly and assembly, and can facilitate the replacement of the first spring 84 inside.

[0032] Furthermore, a second spring 83 is sleeved on both ends of the fixed shaft 82 respectively. Both ends of the fixed shaft 82 are respectively connected to the fixed blocks 85, and the second spring 83 is arranged between the guide cylinder 811 and the fixed block 85. Through the design of the second spring 83 and in cooperation with the first spring 84, the synchronous action of the two-stage springs is realized, further enhancing the role of buffer deceleration. The fixed block 85 is fixed at the bottom end of the load base 3, thereby connecting the entire buffer device 8 and the load base 3.

[0033] Furthermore, a notch 851 is arranged at the bottom end of the fixed block 85, the end of the fixed shaft 82 is arranged in the notch 851, a connecting hole 822 is arranged at the end of the fixed shaft 82, through holes are arranged on both sides of the fixed block 85 and are aligned with the connecting hole 822, and the through holes and the connecting hole 822 are aligned and fixed by locking bolts. With such a design, it is convenient to disassemble and assemble the fixed shaft 82, and further, the installation of the entire buffer device 8 is also more convenient.

[0034] Further, the telescopic mechanism is the second hydraulic cylinder 2. The piston rod 21 of the second hydraulic cylinder 2 is connected to the load-carrying base 3. The two ends of the second hydraulic cylinder 2 are respectively provided with a rod chamber pipeline 24 and a rodless chamber pipeline 23. The rod chamber pipeline 24 and the rodless chamber pipeline 23 are connected to the reversing valve block 22. The rod chamber pipeline 24 and the rodless chamber pipeline 23 are communicated through an oil return pipeline 25, and a valve body 26 is arranged on the oil return pipeline 25. When parking, only need to open the valve body 26 to make the oil circuits of the rod chamber pipeline 24 and the rodless chamber pipeline 23 communicate, and control the flow rate of the valve body 26, that is, the flow rate of the hydraulic oil introduced into the second hydraulic cylinder 2 can be reduced, thereby reducing the telescopic speed of the second hydraulic cylinder 2. Slow deceleration parking is achieved by reducing the flow rate of the hydraulic oil. After complete parking, the valve body 26 is closed, and the reversing valve block 22 is also in a closed state. Such a design is a dual design from the aspects of hydraulics and mechanical structure, which improves the effect of buffer parking.

[0035] The above are only the preferred embodiments of the present invention and are not used to limit the present invention. For those skilled in the art, the present invention can have various changes and modifications. Any modifications, equivalent replacements, improvements, 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 cathode carbon block heating device, characterized in that: include: Two parallel tracks are arranged on the foundation, and are divided into a loading area, a heating area and an assembly area in sequence along the length direction of the tracks. A cover body is arranged on the heating area, a burner is arranged inside the cover body, and the cover body is connected to the lifting mechanism; A load-carrying base slidably arranged on the track, wherein the load-carrying base is connected to the telescopic mechanism; A plurality of limiting devices are arranged on the foundation, wherein the limiting devices are arranged on the loading area, the heating area and the assembly area respectively; A buffer device is arranged at the bottom end of the object-carrying base, and the limiting device can extend out and abut against the buffer device.

2. The cathode carbon block heating device according to claim 1, characterized in that: The limiting device comprises a hydraulic cylinder 1, a piston rod 1 and a limiting plate, the end of the piston rod 1 of the hydraulic cylinder 1 is connected to the limiting plate, the hydraulic cylinder 1 is arranged in the foundation, and the limiting plate can extend to the upper part of the foundation.

3. The cathode carbon block heating device according to claim 1, characterized in that: The buffer device includes a fixed shaft, a slide cylinder, and a spring. Two limit rings are symmetrically arranged on the fixed shaft, and two slide cylinders are symmetrically arranged on the fixed shaft. The outer diameter of the limit ring is smaller than the inner diameter of the slide cylinder. A guide cylinder is extended to one end of the slide cylinder, and the inner diameter of the slide cylinder is larger than the inner diameter of the guide cylinder. The guide cylinder is slidably arranged on the fixed shaft, and the ends of the slide cylinders are connected to each other in a close fit. A spring is respectively arranged inside the two ends of the slide cylinder, and the spring is set on the fixed shaft, and one end of the spring is abutted against the limit ring.

4. The cathode carbon block heating device according to claim 3, characterized in that: A second spring is respectively sleeved on both ends of the fixed shaft, and the two ends of the fixed shaft are respectively connected to the fixed block, and the second spring is arranged between the guide cylinder and the fixed block.

5. The cathode carbon block heating device according to claim 3, characterized in that: A connecting flange is arranged at one end of the slide cylinder, and an abutment block is extendedly arranged at one side of the connecting flange.

6. The cathode carbon block heating device according to claim 4, characterized in that: The bottom end of the fixing block is provided with a notch, the fixed shaft end is provided in the notch, the fixed shaft end is provided with a connecting hole, and through holes facing the connecting holes are provided on both sides of the fixing block, and the through holes and the connecting holes face each other and are fixed by locking bolts.

7. The cathode carbon block heating device according to claim 6, characterized in that: The fixing block is fixed on the bottom end of the object-carrying base.

8. The cathode carbon block heating device according to claim 1, characterized in that: The telescopic mechanism is a hydraulic cylinder 2, a piston rod 2 of the hydraulic cylinder 2 is connected to a loading base, a rod chamber pipeline and a rodless chamber pipeline are respectively provided at both ends of the hydraulic cylinder 2, the rod chamber pipeline and the rodless chamber pipeline are connected to a reversing valve block, the rod chamber pipeline and the rodless chamber pipeline are connected through an oil return pipeline, and a valve body is provided on the oil return pipeline.

Images