Masonry device for semi-graphite carbon bricks

Abstract

The utility model relates to a masonry device for semi-graphite carbon bricks, and belongs to the field of furnace lining installation and masonry equipment. The device comprises a hoisting piece, the hoisting piece comprises expansion blocks (5), a hoisting tool mandrel (2) and a limiting ring (3), the hoisting tool mandrel (2) is of a big-end-down conical structure, the number of the expansion blocks (5) is at least two, the expansion blocks (5) are arranged at intervals, the hoisting tool mandrel (2) is arranged between the expansion blocks (5) in a penetrating mode, grooves (51) are formed in the outer walls of the upper portions of the expansion blocks (5), and the limiting ring (3) can be arranged in the grooves (51) in a sleeved mode. The device can directly penetrate into a drill hole (81) in the upper end of a carbon brick (8), the expansion block (5) moves outwards to be attached to the inner wall of the drill hole (81) by pulling the lifting tool spool (2) upwards, and lifting of the carbon brick (8) is achieved. The problem that constructors are hurt due to falling of carbon bricks (8) caused by power failure due to no protection measures in hoisting and positioning of the existing vacuum chuck is solved.

Description

Technical Field

[0001] This utility model relates to a device for laying semi-graphite carbon bricks, belonging to the field of furnace lining installation and masonry equipment. Background Technology

[0002] The blast furnace lining consists of the bottom, hearth, belly, waist, and throat linings. The bottom lining typically comprises nine layers (each 400mm high, with the bottom two layers being semi-graphite carbon bricks, and the remaining layers being ultra-dense bricks and composite mullite bricks). Two layers of semi-graphite carbon bricks weigh approximately 124,000 kg, with individual bricks ranging from 200 to 600-800 kg. Manual installation while meeting stringent requirements is difficult, necessitating specialized equipment for assistance. (The remaining seven layers, being lighter, can be installed manually.) Traditionally, the semi-graphite carbon bricks are installed using an electric hoist-guided vacuum suction cup (generated by a vacuum pump). This method has several drawbacks: the vacuum and power systems are complex, and operational requirements are stringent. In particular, a power outage without suction can easily cause the graphite carbon bricks to fall, resulting in injuries to hands and feet, posing a potential safety risk. Furthermore, it demands high levels of equipment maintenance and skilled personnel, making it a high-risk operation. Utility Model Content

[0003] The technical problem to be solved by this utility model is that the existing circular track arc verification operation is difficult to control and takes a long time to correct.

[0004] The technical solution adopted by this utility model to solve its technical problem is: a device for laying semi-graphite carbon bricks, including a lifting component, the lifting component including an expansion block, a lifting mandrel and a limiting ring, the lifting mandrel having a conical structure that is smaller at the top and larger at the bottom, the expansion block having at least two blocks and being spaced apart, the lifting mandrel passing through the expansion blocks, the expansion block having a groove on its upper outer wall, and the limiting ring being fitted into the groove.

[0005] In the aforementioned device, a tapered groove is provided on the inner side of the expansion block along the length direction.

[0006] In the aforementioned device, the upper part of the lifting mandrel is provided with a connector, and the lower part is a frustum-shaped connecting part.

[0007] In the aforementioned device, the outer wall of the expansion block is provided with several slots spaced along the length direction, and at least one slot is fitted with a rubber ring.

[0008] Furthermore, the depth of the groove in the above-mentioned device is greater than the depth of the slot.

[0009] In the aforementioned device, the outer wall of the expansion block has an arc-shaped cross-section and is provided with anti-slip texture.

[0010] The device also includes a lifting ring, the lower end of which is provided with a threaded hole, and the outer wall of the connector is provided with a matching external thread. The lifting mandrel is threadedly connected to the lifting ring.

[0011] Furthermore, the device also includes a balance beam, the lower end of which is connected to a lifting ring.

[0012] Furthermore, the aforementioned device also includes a lifting chain, through which the lifting ring and the balance beam are connected.

[0013] Furthermore, the balance beam in the above device has a lifting hole at the middle of its upper end and two connecting rings symmetrically arranged at its lower end. One end of the lifting chain is connected to the connecting ring, and the other end is connected to the lifting ring.

[0014] The beneficial effects of this invention are: This device reduces the skill requirements for operators during bricklaying, improves operational safety, and is highly operable; it reduces the need for maintenance personnel in complex vacuum and power supply systems, while also lowering costs and ensuring safety control. This device can be manually inserted into the drilled hole of the carbon brick, and the lifting mandrel is pulled upwards. Because the lifting mandrel has a tapered structure that is smaller at the top and larger at the bottom, the larger end of the mandrel will compress the expansion block, increasing the distance between adjacent expansion blocks and ensuring a tight fit between the outer wall of the expansion block and the inner wall of the drill hole. The entire lifting component is connected to the carbon brick as a whole, completing the vertical and horizontal movement of a single half-graphite carbon brick. After the bricklaying is completed, the lifting component is lowered and manually removed. Simultaneously, the carbon material is tamped and used to seal the drill hole, making the actual lifting operation of the carbon brick more convenient. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model.

[0016] Figure 2 This is a schematic diagram of the lifting mandrel structure of this utility model.

[0017] Figure 3 This is a schematic diagram of the expansion block structure of this utility model.

[0018] Figure 4 This utility model Figure 3 A schematic diagram of the right-side core structure.

[0019] Figure 5 This is a structural diagram of the present invention during hoisting.

[0020] Figure 6 This utility model Figure 5 Enlarged schematic diagram of the structure at point I.

[0021] Attached reference numerals: 1 is lifting ring, 2 is lifting mandrel, 21 is connector, 22 is connecting part, 3 is limiting ring, 4 is rubber ring, 5 is expansion block, 51 is groove, 52 is slot, 6 is balance beam, 7 is lifting chain, 8 is carbon brick, 81 is drill hole. Detailed Implementation

[0022] The present invention will be further described below with reference to the accompanying drawings.

[0023] like Figures 1 to 6 As shown, this utility model discloses a device for laying semi-graphite carbon bricks, including a lifting component. The lifting component includes expansion blocks 5, a lifting mandrel 2, and a limiting ring 3. The lifting mandrel 2 is a conical structure with a smaller upper part and a larger lower part. There are at least two expansion blocks 5 arranged at intervals. The lifting mandrel 2 passes through the expansion blocks 5. A groove 51 is provided on the upper outer wall of the expansion block 5, and the limiting ring 3 can be fitted into the groove 51. Those skilled in the art will understand that this device is mainly used for lifting carbon bricks 8 during the laying process, and therefore actually includes a lifting component. Preferably, the lifting component mainly includes expansion blocks 5, a lifting mandrel 2, and a limiting ring 3. The lifting mandrel 2 is a conical structure with a smaller upper part and a larger lower part, and there are at least two expansion blocks 5 arranged at intervals. Preferably, there are 2 to 4 expansion blocks 5. The expansion blocks 5 are arranged in a ring shape, not linearly. Therefore, the expansion blocks 5 should form a columnar structure with a central hole. The lifting mandrel 2 passes through the expansion blocks 5. The upper end extends out of the end of the expansion block 5. Specifically, the small end of the lifting mandrel 2 can be inserted between the expansion blocks 5 from bottom to top. Since the lifting mandrel 2 is a tapered structure that is smaller at the top and larger at the bottom, pulling the lifting mandrel 2 upward will gradually increase the distance between the expansion blocks 5. In order to ensure that the outer wall of the lifting mandrel 2 is in close contact with the inner wall of the expansion block 5, it is preferable to provide a groove 51 on the upper outer wall of the expansion block 5. The limiting ring 3 can be sleeved in the groove 51. The limiting ring 3 ensures that the outer wall of the lifting mandrel 2 is in close contact with the inner wall of the expansion block 5.

[0024] Preferably, the expansion block 5 in the above-mentioned device has a tapered groove on its inner side along the length direction. Those skilled in the art will understand that, in order to ensure close contact between the outer wall of the lifting mandrel 2 and the inner wall of the expansion block 5, and to facilitate smooth upward movement of the lifting mandrel 2, the device preferably has a tapered groove on the inner side of the expansion block 5 along the length direction, and the shape of the tapered groove should be adapted to the shape of the outer wall of the lifting mandrel 2 to ensure close contact between the outer wall and the inner wall of the expansion block 5 when the lifting mandrel 2 moves upward.

[0025] Preferably, in the above-described device, the upper part of the lifting mandrel 2 is provided with a connector 21, and the lower part is a frustum-shaped connecting part 22. Those skilled in the art will understand that, for ease of connection with the lifting device, this device preferably has a connector 21 on the upper part of the lifting mandrel 2, and is actually connected to the lifting device through the connector 21. Simultaneously, the lower part is preferably a frustum-shaped connecting part 22, so the tapered groove provided along the length direction on the inner side of the expansion block 5 should be adapted to the orientation of the frustum-shaped connecting part 22.

[0026] Preferably, in the above-mentioned device, a plurality of slots 52 are spaced along the length direction on the outer wall of the expansion block 5, and a rubber ring 4 is fitted inside at least one slot 52. Those skilled in the art will understand that this is to maintain the spacing between adjacent expansion blocks 5 and ensure stability during the hoisting process. In this device, it is actually preferred that a plurality of slots 52 be spaced along the length direction on the outer wall of the expansion block 5, and that a rubber ring 4 be fitted inside at least one slot 52. The rubber ring 4 is actually fitted into the spaced-apart slots 52 on the outer side of the expansion block 5, so that the inner wall of the spaced-apart expansion block 5 is in contact with the outer wall of the lifting mandrel 2.

[0027] Preferably, the depth of the groove 51 in the above-described device is greater than the depth of the slot 52. Those skilled in the art will understand that, since the lifting mandrel 2 passes between the expansion blocks 5, to prevent the limiting ring 3 from separating from the expansion blocks 5, the depth of the groove 51 is preferably greater than the depth of the slot 52.

[0028] Preferably, the outer wall cross-section of the expansion block 5 in the above-mentioned device is arc-shaped and has anti-slip texture. Those skilled in the art will understand that, since a hole 81 needs to be pre-drilled on the upper end of the carbon brick 8, to increase the contact area between the expansion block 5 and the inner wall of the hole 81, the outer wall cross-section of the expansion block 5 is preferably arc-shaped. Simultaneously, the anti-slip texture on the outer wall of the expansion block 5 increases friction and ensures a tight connection between the expansion block 5 and the carbon brick 8 during hoisting.

[0029] Preferably, the above-mentioned device further includes a lifting ring 1, the lower end of which is provided with a threaded hole, and the outer wall of the connector 21 is provided with a matching external thread. The lifting mandrel 2 is threadedly connected to the lifting ring 1. Those skilled in the art will understand that, for ease of connection with the lifting device, this device preferably includes a lifting ring 1, specifically with a threaded hole at its lower end, and a matching external thread on the outer wall of the connector 21. The connector 21 is screwed into the threaded hole to achieve a threaded connection between the lifting mandrel 2 and the lifting ring 1, which also facilitates later disassembly.

[0030] Preferably, the above-mentioned device further includes a balance beam 6, the lower end of which is connected to the lifting ring 1. Those skilled in the art will understand that, since the carbon brick 8 has a certain weight and length, in order to ensure uniform force during lifting, this device is equipped with a balance beam 6, and the lower end of the balance beam 6 is connected to the lifting ring 1. The balance beam 6 can be directly connected to the lifting device.

[0031] Preferably, the above-mentioned device also includes a lifting chain 7, and the lifting ring 1 and the balance beam 6 are connected by the lifting chain 7. Those skilled in the art will understand that, in order to facilitate the lifting of the drilled holes 81 at different locations and the lifting components after installation, this device preferably connects the lifting ring 1 and the balance beam 6 by the lifting chain 7. This can be understood as a flexible connection to ensure uniform force distribution during rotation and improve lifting safety.

[0032] Preferably, in the above-mentioned device, the balance beam 6 has a lifting hole at the middle of its upper end and two connecting rings symmetrically arranged at its lower end. One end of the lifting chain 7 is connected to the connecting ring, and the other end is connected to the lifting ring 1. Those skilled in the art will understand that, in order to ensure uniform lifting force and to prevent it from being affected by the position of the drill hole 81, this device preferably has a lifting hole at the middle of the upper end of the balance beam 6 for connecting to the lifting device, and two connecting rings symmetrically arranged at the lower end, connecting one end of the lifting chain 7 to the connecting ring and the other end to the lifting ring 1. This effectively creates two lifting points above the carbon brick 8, ensuring uniform lifting force.

Claims

1. A device for laying semi-graphite carbon bricks, comprising a lifting component, characterized in that: The lifting components include expansion blocks (5), lifting mandrels (2) and limiting rings (3). The lifting mandrels (2) are tapered structures with a smaller top and a larger bottom. There are at least two expansion blocks (5) and they are spaced apart. The lifting mandrels (2) are inserted between the expansion blocks (5). The upper outer wall of the expansion blocks (5) is provided with grooves (51). The limiting rings (3) can be fitted into the grooves (51).

2. The apparatus for laying semi-graphite carbon bricks as described in claim 1, characterized in that: The expansion block (5) has a tapered groove along its length on its inner side.

3. The apparatus for laying semi-graphite carbon bricks as described in claim 1, characterized in that: The upper part of the lifting mandrel (2) is provided with a connector (21), and the lower part is a frustum-shaped connector (22).

4. The apparatus for laying semi-graphite carbon bricks as described in claim 1, characterized in that: The expansion block (5) has several slots (52) spaced along its length on its outer wall, and at least one slot (52) is fitted with a rubber ring (4).

5. The apparatus for laying semi-graphite carbon bricks as described in claim 4, characterized in that: The depth of the groove (51) is greater than the depth of the slot (52).

6. The apparatus for laying semi-graphite carbon bricks as described in claim 1, characterized in that: The outer wall of the expansion block (5) has an arc-shaped cross section and is provided with anti-slip texture.

7. The apparatus for laying semi-graphite carbon bricks as described in claim 3, characterized in that: It also includes a lifting ring (1), the lower end of which is provided with a threaded hole, the outer wall of the connector (21) is provided with a matching external thread, and the lifting mandrel (2) is threadedly connected to the lifting ring (1).

8. The apparatus for laying semi-graphite carbon bricks as described in claim 7, characterized in that: It also includes a balance beam (6), the lower end of which is connected to the lifting ring (1).

9. The apparatus for laying semi-graphite carbon bricks as described in claim 8, characterized in that: It also includes a lifting chain (7), through which the lifting ring (1) and the balance beam (6) are connected.

10. The apparatus for laying semi-graphite carbon bricks as described in claim 9, characterized in that: The balance beam (6) has a lifting hole in the middle of the upper end and two connecting rings symmetrically arranged at the lower end. One end of the lifting chain (7) is connected to the connecting ring, and the other end is connected to the lifting ring (1).

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