Submerged arc furnace flue assembly convenient to butt joint

Abstract

The utility model relates to a submerged arc furnace flue assembly convenient for butt joint, which comprises a first flue, a second flue, a buckling piece and a connecting piece, the buckling piece and the connecting piece are respectively arranged at the opposite ends of the first flue and the second flue, and the connecting piece is sleeved on the outer side of the buckling piece, so that the buckling piece is connected with the first flue in a clamping way; the buckling piece comprises a sleeve shell and a plurality of arc-shaped plates, the sleeve shell is arranged on the outer wall of one end of the first flue in a sleeving mode and fixedly connected with the first flue, the arc-shaped plates are fixedly connected to the end face, facing the connecting piece, of the sleeve shell, and a clamping groove is formed in a gap between every two adjacent arc-shaped plates. The connecting piece comprises a sleeve section, a movable ring, a plurality of clamping structures and two threaded rings. According to the flue assembly of the submerged arc furnace, the buckling piece and the connecting piece are arranged in a matched mode, so that the first flue and the second flue in the flue assembly of the submerged arc furnace can be connected and disassembled conveniently, and a manager can maintain and manage the flue assembly of the submerged arc furnace conveniently.

Description

Technical Field

[0001] The utility model relates to the technical field of flue structures, in particular to a flue component of a submerged arc furnace which is easy to connect. Background Art

[0002] The submerged arc furnace is also called an electric arc furnace or a resistance furnace. It is mainly used for reducing and smelting raw materials such as ores, carbonaceous reducing agents and solvents. It mainly produces ferrosilicon, ferromanganese, ferrochrome, ferrotungsten, silicon-manganese alloys and other ferroalloys. It is an important industrial raw material in the metallurgical industry and a chemical raw material such as calcium carbide. The load of the transformer of the submerged arc furnace is continuous and stable, the impedance voltage is low, the number of voltage regulation stages is large, the step difference is small and the overload capacity is strong. The submerged arc furnace will guide the generated smoke to be discharged through the flue assembly.

[0003] In the past, flues were mostly prefabricated with alkali-resistant glass fiber mesh cloth sandwiched in sulphoaluminate cement or steel wire mesh sandwiched in ordinary silicate cement and other reinforcing materials; modern flues are mostly assembled with tinplate through mold processing, and during installation, the flues to be connected can be connected and fixed with bolts or rivets. However, the above-mentioned existing flue components are fixed with threads during docking and assembly, which makes it inconvenient to disassemble and assemble the flue, and it is not convenient for management personnel to clean and maintain the inside of the flue later. Utility Model Content

[0004] 1. Technical issues to be solved

[0005] The utility model provides a submerged arc furnace flue assembly which is easy to connect, and solves the problem that the existing flue assembly is inconvenient to disassemble and assemble the flue because the flue assembly is fixed by thread during the connecting assembly.

[0006] (II) Technical solution

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a submerged arc furnace flue assembly that is easy to connect, comprising a first flue, a second flue, a fastener and a connector, the fastener and the connector are respectively installed at the opposite ends of the first flue and the second flue, and the connector is sleeved on the outside of the fastener so that it clamps and connects the first flue.

[0008] Among them, the fastening part includes a shell and multiple arc plates, the shell is mounted on the outer wall of one end of the first flue and fixedly connected thereto, the multiple arc plates are fixedly connected to the end surface of the shell facing the connecting part, and the gaps between every two adjacent arc plates form a slot.

[0009] Wherein, the connecting piece includes a sleeve section, a movable ring, several groups of clamping structures and two threaded rings. The sleeve section is sleeved on the outer wall of one end of the second flue and fixedly connected thereto. The two threaded rings are sleeved on the outside of the sleeve section and threadedly connected thereto. The movable ring is arranged between the two threaded rings so that the two threaded rings adjust the position state of the movable ring. Several groups of the clamping structures are installed on the movable rings, and each group of the clamping structures has a movable part rotatably connected to the sleeve section, and each of the movable parts moves through a group of slots.

[0010] Preferably, the number of the clamping structures is equal to the number of the slots, and the clamping structure includes a positioning frame formed on the outer wall of the sleeve segment, a connecting frame formed on the outer wall of the movable ring, a push-pull arm and a fixed arm, one end of the push-pull arm close to the connecting frame is rotatably connected to the connecting frame, one end of the push-pull arm close to the fixed arm is rotatably connected to the adjacent end of the fixed arm, the middle part of the fixed arm is rotatably connected to the positioning frame, and the fixed arm constitutes the movable part of the clamping structure.

[0011] In a further embodiment, the plurality of arc-shaped plates are evenly distributed along the radial direction of the casing, and the inner walls of the arc-shaped plates are in contact with the outer wall of the first flue.

[0012] In a further embodiment, the connector also includes a sealing section, which is bonded and fixed to one end of the sleeve section facing the sealing section, and is sleeved on the outside of the fastener. A plurality of wedge-shaped blocks are formed on the inner wall of the sealing section, and each of the wedge-shaped blocks faces a group of card grooves. A plurality of pressure grooves are formed on the outer wall of the sealing section, and each group of pressure grooves faces a wedge-shaped block. A plurality of movable grooves that penetrate the sealing section are also formed on the outer wall of the sealing section, and the plurality of movable grooves are evenly distributed between the plurality of wedge-shaped blocks.

[0013] (III) Beneficial effects

[0014] Compared with the prior art, the utility model provides a submerged arc furnace flue assembly that is easy to connect, and has the following beneficial effects:

[0015] 1. In the utility model, by the matching arrangement of the fastening parts and the connecting parts, the first flue and the second flue in the submerged arc furnace flue assembly can be conveniently operated during connection and disassembly, which is convenient for the management personnel to maintain the submerged arc furnace flue assembly.

[0016] 2. In the utility model, by cooperating the fastener and the sealing section in the connector, when the first flue and the second flue in the submerged arc furnace flue assembly are connected by the fastener and the connector, the sealing section can also be used to cover the connecting end of the first flue and the second flue, thereby reducing the leakage of flue gas during the use of the submerged arc furnace flue assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of a submerged arc furnace flue assembly that is easy to connect according to the implementation scheme;

[0018] Figure 2 for Figure 1 Schematic diagram of the structural decomposition of the submerged arc furnace flue assembly for easy docking;

[0019] Figure 3 is a schematic structural diagram of a fastening member according to an embodiment;

[0020] Figure 4 Schematic diagram of the structure of a connector according to an embodiment.

[0021] In the figure: 10, first flue; 20, second flue; 30, fastener; 31, casing; 32, arc plate; 33, slot; 40, connector; 41, sleeve section; 410, positioning frame; 42, movable ring; 420, connecting frame; 43, push-pull arm; 44, fixed arm; 45, sealing section; 450, wedge block; 451, pressing groove; 452, movable groove; 46, threaded ring. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions 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. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] See also Figure 1 and Figure 2 A submerged arc furnace flue assembly that is easy to connect includes a first flue 10, a second flue 20, a fastener 30, and a connector 40. The fastener 30 and the connector 40 are respectively installed at the opposite ends of the first flue 10 and the second flue 20, and the connector 40 is sleeved on the outer side of the fastener 30, so that it clamps the first flue 10 and completes the connection between adjacent flues.

[0024] See also Figure 3 The fastener 30 includes a sleeve 31 and a plurality of arc-shaped plates 32. The sleeve 31 is sleeved on the outer wall of one end of the first flue 10 and fixedly connected thereto. The plurality of arc-shaped plates 32 are fixedly connected to the end surface of the sleeve 31 facing the connecting member 40 and are evenly distributed along the radial direction of the sleeve 31. The inner wall of each arc-shaped plate 32 fits the outer wall of the first flue 10, and the gap between each two adjacent arc-shaped plates 32 can be used to form a slot 33 to match the clamping structure and the sealing section 45 in the connecting member 40.

[0025] See also Figure 4The connector 40 may include a sleeve section 41, a movable ring 42, several groups of clamping structures, a sealing section 45 and two threaded rings 46. The sleeve section 41 is sleeved on the outer wall of one end of the second flue 20 and fixedly connected thereto. The two threaded rings 46 are sleeved on the outer side of the sleeve section 41 and threadedly connected thereto, and the movable ring 42 is arranged between the two threaded rings 46, so that the position of the movable ring 42 can be adjusted when the two threaded rings 46 move axially along the sleeve section 41. The sealing section 45 is bonded and fixed to the sleeve section 41 at one end facing the sleeve section 41, and when connected and assembled, the sealing section 45 can be sleeved on the outer side of the fastener 30 to cover the connecting end of the first flue 10 and the second flue 20. Several groups of clamping structures are installed on the movable ring 42, and the number of the clamping structures is equal to the number of the slots 33. Each set of clamping structures has a movable part rotatably connected to the sleeve section 41, and each movable part moves through a set of slots 33, and the connection and assembly are completed after the sealing section 45 is pressed against the outer wall of the first flue 10 by using the movable part.

[0026] In this embodiment, the clamping structure includes a positioning frame 410 formed on the outer wall of the sleeve section 41, a connecting frame 420 formed on the outer wall of the movable ring 42, a push-pull arm 43 and a fixed arm 44. The end of the push-pull arm 43 close to the connecting frame 420 is rotatably connected to it, the end of the push-pull arm 43 close to the fixed arm 44 is rotatably connected to the adjacent end of the fixed arm 44, and the middle part of the fixed arm 44 is rotatably connected to the positioning frame 410. When adjusting the position of the movable ring 42, the connecting frame 420 can be used to drive the push-pull arm 43 to move accordingly, and the push-pull arm 43 can be used to cooperate with the force applied to the fixed arm 44, so that the fixed arm 44 can be deflected with its connection with the positioning frame 410 as the rotation center, and the end of the fixed arm 44 close to the buckle 30 can be moved through the card slot 33, and then the fixed arm 44 can be used to form the movable part of the clamping structure.

[0027] A plurality of wedge blocks 450 are formed on the inner wall of the sealing section 45, and each wedge block 450 faces a group of slots 33. A plurality of pressing grooves 451 are formed on the outer wall of the sealing section 45, and each pressing groove 451 faces a wedge block 450. When the fixed arm 44 deflects toward the sealing section 45, it can be deflected and inserted into the pressing groove 451 and press the inner wall thereof, and the wedge block 450 is inserted into the slot 33, so that when the movable parts of the plurality of clamping structures clamp the first flue 10, the sealing section 45 can also be compressed and sleeved on its end to reduce smoke leakage. The sealing section 45 can be made of rubber material, so that it has a certain elastic deformation ability. Several groups of movable grooves 452 penetrating the sealing section 45 can also be formed on the outer wall of the sealing section 45, and the several groups of movable grooves 452 are evenly distributed between the multiple groups of wedge blocks 450, so that when the sealing section 45 is squeezed by the movable part of the clamping structure, each section of the wedge blocks 450 will not interfere with each other.

[0028] When connecting and assembling the flue structure, the first flue 10 and the second flue 20 are aligned and contacted, and then the position of the movable ring 42 is adjusted to move it toward the first flue 10. At this time, the movable part of the clamping structure can be deflected toward the first flue 10, and the connection and assembly are completed after clamping; when disassembling and separating the flue structure, the position of the movable ring 42 is adjusted to move it away from the first flue 10. At this time, the movable part of the clamping structure can be deflected toward the outside of the first flue 10, so that it is separated and contacted with the sealing section 45, and then the first flue 10 and the second flue 20 can be separated and disassembled.

[0029] In all the schemes mentioned above, the connection between two parts can be selected according to actual conditions by welding, bolt and nut matching connection, bolt or screw connection or other well-known connection methods, which are not described one by one here. In the above, all fixed connections are preferably welded. Although the embodiments of the utility model have been shown and described, it can be understood by ordinary technicians in this field that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the utility model. The scope of the utility model is defined by the attached claims and their equivalents.

Claims

1. A submerged arc furnace flue assembly that is easy to connect, comprising a first flue (10) and a second flue (20), characterized in that: The invention also comprises a fastening member (30) and a connecting member (40), wherein the fastening member (30) and the connecting member (40) are respectively installed at the opposite ends of the first flue (10) and the second flue (20), and the connecting member (40) is sleeved on the outer side of the fastening member (30) so as to clamp and connect the first flue (10). The buckle member (30) comprises a sleeve (31) and a plurality of arc-shaped plates (32), wherein the sleeve (31) is sleeved on the outer wall of one end of the first flue (10) and fixedly connected thereto, and the plurality of arc-shaped plates (32) are fixedly connected to the end surface of the sleeve (31) facing the connecting member (40), and the gaps between every two adjacent arc-shaped plates (32) form a slot (33); The connecting member (40) comprises a sleeve section (41), a movable ring (42), a plurality of groups of clamping structures and two threaded rings (46); the sleeve section (41) is sleeved on the outer wall of one end of the second flue (20) and fixedly connected thereto; the two threaded rings (46) are sleeved on the outer side of the sleeve section (41) and threadedly connected thereto; the movable ring (42) is arranged between the two threaded rings (46) so that the two threaded rings (46) adjust the position of the movable ring (42); a plurality of groups of the clamping structures are installed on the movable ring (42); each group of the clamping structures has a movable part rotatably connected to the sleeve section (41), and each of the movable parts movably passes through a group of slots (33).

2. The submerged arc furnace flue assembly that is easy to connect according to claim 1, characterized in that: The clamping structure comprises a positioning frame (410) formed on the outer wall of the sleeve section (41), a connecting frame (420) formed on the outer wall of the movable ring (42), a push-pull arm (43) and a fixed arm (44), wherein one end of the push-pull arm (43) close to the connecting frame (420) is rotatably connected thereto, one end of the push-pull arm (43) close to the fixed arm (44) is rotatably connected to an adjacent end of the fixed arm (44), a middle portion of the fixed arm (44) is rotatably connected to the positioning frame (410), and the fixed arm (44) constitutes a movable portion of the clamping structure.

3. The submerged arc furnace flue assembly that is easy to connect according to claim 1, characterized in that: The plurality of arc-shaped plates (32) are evenly distributed along the radial direction of the casing (31), and the inner walls of the arc-shaped plates (32) are in contact with the outer wall of the first flue (10).

4. The submerged arc furnace flue assembly that is easy to connect according to claim 1, characterized in that: The connecting piece (40) further comprises a sealing section (45), one end of the sealing section (45) facing the sleeve section (41) is bonded and fixed to the sleeve section (41), and the sealing section (45) is sleeved on the outside of the fastening piece (30).

5. The submerged arc furnace flue assembly that is easy to connect according to claim 4, characterized in that: A plurality of wedge-shaped blocks (450) are formed on the inner wall of the sealing section (45), and each of the wedge-shaped blocks (450) faces a group of slots (33). A plurality of pressing grooves (451) are formed on the outer wall of the sealing section (45), and each of the pressing grooves (451) faces a wedge-shaped block (450).

6. The submerged arc furnace flue assembly that is easy to connect according to claim 5, characterized in that: A plurality of groups of movable grooves (452) penetrating the sealing section (45) are also formed on the outer wall of the sealing section (45), and the plurality of groups of movable grooves (452) are evenly distributed between the plurality of groups of wedge-shaped blocks (450).

7. A submerged arc furnace flue assembly that is easy to connect according to any one of claims 1 to 6, characterized in that: The number of the clamping structures is equal to the number of the clamping slots (33).

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