High-temperature large-deformation self-adaptive sealing device for wire rod fused salt roller way box body

Abstract

The utility model provides a high-temperature large-deformation self-adaptive sealing device for a wire rod fused salt roller way box body. The molten salt circulating device at least comprises a molten salt circulating control system and further comprises a chain wheel (1), a bearing seat (2), a fixing support (3), a sealing assembly, a roller way (6), a wire rod (7), molten salt (8), an upper box body (9), a pipeline (10) and a lower box body (11). Due to the organic arrangement of the fused salt circulation control system, the lower box body, the upper box body, the fused salt, the roller way, the bearing seat, the fixed bracket, the sealing assembly and the chain wheel, the roller way can freely rotate even if the box body deforms when the box body works at the high temperature of 550 DEG C or above, so that the service life of the box body is prolonged. And only a small amount of molten salt flows away from the gap between the roller way and the upper box body, so that the wire rod is always soaked in the molten salt, and the purpose of heat treatment is achieved. The device is simple and reliable in structure, low in cost and convenient to maintain.

Description

Technical Field

[0001] This utility model belongs to the technical field of metallurgical heat treatment equipment, specifically, it relates to a high-temperature large deformation adaptive sealing device for a wire rod molten salt roller conveyor box. Background Technology

[0002] In actual wire rod production, air cooling and water quenching technologies are used to improve the overall strength and toughness of the material. However, due to their inherent limitations, air cooling and water quenching technologies are difficult to improve the material strength beyond 1200 MPa. However, molten salt heat treatment of wire rod can achieve even higher strength, hence the rapid development of molten salt heat treatment technology for wire rod in recent years. During molten salt heat treatment of wire rod, the molten salt is maintained at temperatures above 550℃ for extended periods, placing extremely high demands on the load-bearing housing and roller conveyor. It is essential not only to ensure the strength of the housing at high temperatures but also to prevent large deformations of the housing from affecting the rotation of the roller conveyor, while simultaneously preventing excessive leakage of molten salt from the roller conveyor gaps. Utility Model Content

[0003] To address the shortcomings of existing technologies, the purpose of this utility model is to provide a high-temperature, large-deformation adaptive sealing device for wire rod molten salt roller conveyor boxes.

[0004] The technical solution of this utility model is as follows:

[0005] This utility model relates to a high-temperature large deformation adaptive sealing device for a wire rod molten salt roller conveyor box, which includes at least a molten salt circulation control system, and also includes: a sprocket 1, a bearing seat 2, a fixed bracket 3, a sealing assembly, a roller conveyor 6, a wire rod 7, molten salt 8, an upper box 9, a pipe 10, and a lower box 11.

[0006] in,

[0007] The upper part of the lower housing 11 is open and is fixedly mounted on the fixed bracket 3;

[0008] The upper part of the upper box 9 is open and is fixedly mounted on the upper end of the fixed bracket 3 and directly above the lower box 11. The opposite side walls of the upper box 9 are provided with multiple pairs of roller holes for the roller conveyor 6 to pass through. The upper box 9 is connected to the lower box 11 through a molten salt circulation system.

[0009] Molten salt 8 is placed in the lower box 11 and the upper box 9;

[0010] The roller conveyor 6 is installed in two roller conveyor holes on opposite side walls of the upper housing 9;

[0011] Bearing seats 2 are located at both ends of roller conveyor 6, and roller conveyor 6 is connected to fixed bracket 3 through bearing seats 2;

[0012] The sealing assembly consists of two sets, which are respectively fitted onto the roller conveyor 6 located inside the upper housing 9. One end of each sealing assembly is connected to the inner sidewalls on both sides of the upper housing 9, and the inner hole of the sealing assembly is fitted onto the roller conveyor 6.

[0013] The sprocket 1 is located at one end of the roller conveyor 6, and multiple sprockets 1 on the roller conveyor 6 are connected in series.

[0014] Preferably, the sealing assembly includes a sealing plate 5 and a sealing plate slot 5a; the sealing plate 5 is sleeved on the roller conveyor 6 and inserted into the sealing plate slot 5a.

[0015] Preferably, the sealing plate slot 5a is fixed on the upper housing 9 and is disposed on both horizontal sides of the roller conveyor 6.

[0016] Preferably, the circumferential gap between the sealing plate 5 and the sealing plate slot 5a is 5-8 mm, and the thickness gap is 0.1-0.2 mm; the sealing plate 5 is made of wear-resistant, high-temperature resistant and corrosion-resistant material.

[0017] Preferably, the roller conveyor 6 is located outside the upper box 9 and a salt baffle 4 is fixedly connected near the through hole of the upper box 9.

[0018] Preferably, the salt baffle 4 is arranged perpendicularly to the roller conveyor 6 and is 20-30 mm away from the outer wall of the upper box 9.

[0019] Preferably, the axis of the roller conveyor 6 passes through the center of the roller conveyor hole on the side wall of the upper housing 9.

[0020] Preferably, the diameter of the roller conveyor hole on the upper housing 9 is 1.3 to 1.8 times the diameter of the roller conveyor 6.

[0021] Preferably, the upper housing 9 is provided with a pipe 10 on its side wall, and the upper housing 9 is connected to the molten salt circulation system through the pipe 10.

[0022] Preferably, the multiple pairs of roller holes on the upper housing 9 are evenly arranged on the opposite side walls of the upper housing 9.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] (1) This utility model can ensure that even if the box body is deformed when it is working at a high temperature above 550℃, the roller can rotate freely, and only a small amount of molten salt flows out from the gap between the roller and the upper box body, so that the wire rod is always immersed in molten salt to achieve the purpose of heat treatment.

[0025] (2) When the upper box of this utility model deforms during high-temperature operation, it can adapt to the deformation well by making full use of the circumferential movement gap of the sealing plate in the slot of the sealing assembly, thus ensuring a good sealing effect.

[0026] (3) The present invention has a simple and reliable structure, low cost and convenient maintenance. Attached Figure Description

[0027] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0028] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0029] Figure 2 This is a schematic diagram of the upper box and roller conveyor at room temperature of this utility model;

[0030] Figure 3 This is a schematic diagram of the upper box and roller conveyor of the molten salt at high temperature according to this utility model;

[0031] In the diagram: 1-sprocket; 2-bearing seat; 3-fixed bracket; 4-salt baffle; 5-sealing plate; 5a-sealing slot; 6-roller conveyor; 7-wire rod; 8-molten salt; 9-upper box; 10-pipe; 11-lower box. Detailed Implementation

[0032] The present invention will now be described in detail with reference to specific embodiments. These embodiments will help those skilled in the art to further understand the present invention, but do not limit the present invention in any way. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of the present invention. These all fall within the protection scope of the present invention. Example 1

[0033] Reference Figure 1-3 The high-temperature, large-deformation adaptive sealing device for a wire rod molten salt roller conveyor box, as shown, includes at least a molten salt circulation control system, and further includes:

[0034] Fixed bracket 3, lower box 11, the upper part of the lower box 11 is open and connected to the fixed bracket 3;

[0035] The upper box 9 has an open upper part. The upper box 9 is connected to the fixed bracket 3 and is located directly above the lower box 11. The opposite side walls of the upper box 9 are respectively provided with multiple pairs of roller conveyor holes for the roller conveyor 6 to pass through. The upper box 9 is connected to the lower box 11 through a molten salt circulation system.

[0036] Molten salt 8 is placed in the lower box 11 and the upper box 9;

[0037] Roller conveyor 6 is set in two roller conveyor holes on opposite side walls of the upper housing 9;

[0038] Bearing seats 2 are provided at both ends of the roller conveyor 6, and the roller conveyor 6 is connected to the fixed bracket 3 through the bearing seats 2.

[0039] The sealing assembly consists of two sets, which are respectively fitted onto the roller conveyor 6 located inside the upper housing 9. One end of each sealing assembly is fixedly connected to the inner sidewalls on both sides of the upper housing 9, and the other end of the sealing assembly is fitted onto the roller conveyor 6 with a gap.

[0040] Sprockets 1 are located at one end of roller conveyor 6, and multiple sprockets 1 on roller conveyor 6 are connected in series.

[0041] In actual use, the sprockets 1 of multiple roller conveyors 6 are connected in series and rotate under the drive of the drive device; the sealing plate 5 is fitted on the roller conveyor and inserted into the sealing slot 5a. A small gap is left between the sealing plate 5 and the roller conveyor to ensure that only a small amount of molten salt flows out from the gap between the roller conveyor 6 and the sealing plate 5; bearing seats 2 are installed at both ends of the roller conveyor 6 for support, and the bearing seats 2 are fixed to the existing equipment; the sprockets 1 of multiple roller conveyors 6 are connected in series and rotate under the drive of the drive device; the roller conveyor 6 supports the wire rod 7, and the wire rod 7 can move in a direction perpendicular to the roller conveyor axis when the roller conveyor 6 rotates; the molten salt 8 can be fed from the lower box 11 into the upper box 9 through the existing molten salt circulation control system. The molten salt circulation control system can ensure the liquid level of the molten salt 8 in the upper box 9, so that the wire rod 7 is always buried under the molten salt 8.

[0042] The molten salt circulation control system in this embodiment adopts existing technology and mainly consists of a molten salt heater, a molten salt circulation pump, a heat exchanger, a reactor, and a temperature, flow rate, and head acquisition and control system.

[0043] This invention ensures that when the casing operates at temperatures above 550℃, only a small amount of molten salt flows away from the gap between the roller conveyor and the upper casing, keeping the wire rod constantly immersed in molten salt to achieve the purpose of heat treatment. This invention has a simple and reliable structure, low cost, and is easy to maintain. Example 2

[0044] Reference Figure 1 The high-temperature large deformation adaptive sealing device for the wire rod molten salt roller conveyor box shown differs from that in Embodiment 1 in that: the sealing assembly includes a sealing plate 5 and a sealing plate slot 5a; the sealing plate 5 is sleeved on the roller conveyor 6, and the sealing plate 5 is inserted into the sealing plate slot 5a.

[0045] In practical use, the sealing assembly adopts this technical solution, which not only ensures that the roller conveyor 6 can rotate normally, but also ensures that only a small amount of molten salt 8 flows out between the roller conveyor 6 and the upper box 9, so as to ensure that the wire rod 7 is always immersed in the molten salt 8 and achieves the purpose of heat treatment.

[0046] When the upper housing 9 of this utility model deforms during high-temperature operation, it can adapt well to the deformation by making full use of the circumferential movement gap of the sealing plate in the slot of the sealing assembly, thus ensuring a good sealing effect. Example 3

[0047] Reference Figure 1 The high-temperature large deformation adaptive sealing device for the wire rod molten salt roller conveyor box shown differs from that in Embodiment 2 in that the sealing plate slot 5a is fixed on the upper box 9 and distributed on both sides of the roller conveyor 6.

[0048] In practical use, this technical solution not only ensures the normal rotation of the roller conveyor 6, but also ensures that only a small amount of molten salt 8 flows out between the roller conveyor 6 and the upper box 9. Example 4

[0049] Reference Figure 1 The high-temperature, large-deformation adaptive sealing device for a wire rod molten salt roller conveyor box shown differs from Embodiment 2 in that the circumferential gap between the sealing plate 5 and the sealing plate slot 5a is 5–8 mm, and the thickness gap is 0.1–0.2 mm. The sealing plate 5 is made of a wear-resistant, high-temperature-resistant, and corrosion-resistant material.

[0050] In practical use, the sealing plate 5 adopts this technical solution, ensuring that the sealing ring 5b can work stably and continuously. When the upper housing 9 deforms during high-temperature operation, it can adapt well to the deformation by making full use of the circumferential movement gap of the sealing plate in the slot of the sealing assembly, thus ensuring a good sealing effect. Example 5

[0051] Reference Figure 1 The high-temperature large deformation adaptive sealing device for the wire rod molten salt roller conveyor box shown differs from that in Embodiment 1 in that the roller conveyor 6 is located outside the upper box 9 and a salt baffle plate 4 is fixedly connected near the through hole of the upper box 9.

[0052] In actual use, the baffle plate 4 is designed to prevent a small amount of molten salt 8 flowing out from the gap between the sealing ring 5b and the roller conveyor 6 from flowing into the lower box 11, thus avoiding the loss of molten salt 8 and saving costs. Example 6

[0053] Reference Figure 1 The high-temperature large deformation adaptive sealing device for the wire rod molten salt roller conveyor shown differs from that in Example 5 in that the salt baffle 4 is perpendicular to the roller conveyor 6 and is 20-30 mm away from the outer wall of the upper box 9.

[0054] In actual use, the salt baffle 4 adopts this technical solution, which ensures that the molten salt 8 is effectively blocked and falls into the lower box 11, thus avoiding the loss of the molten salt 8. Example 7

[0055] Reference Figure 1 The high-temperature large deformation adaptive sealing device for the wire rod molten salt roller conveyor box shown differs from Embodiment 1 in that the axis of the roller conveyor 6 passes through the center of the roller conveyor hole on the side wall of the upper box 9.

[0056] In practical use, this technical solution can minimize the gap between the housing hole and the shaft while ensuring that there is no interference with the shaft when the housing deforms in all directions. Example 8

[0057] Reference Figures 1-3 The high-temperature large deformation adaptive sealing device for the wire rod molten salt roller conveyor box shown differs from that in Embodiment 1 in that the diameter of the roller conveyor hole on the upper box 9 is 1.3 to 1.8 times the diameter of the roller conveyor 6.

[0058] In actual use, the diameter of the roller conveyor holes on the upper housing 9 adopts this technical solution, which ensures that the roller conveyor can rotate freely even if deformation occurs. Example 9

[0059] Reference Figure 1 The high-temperature large deformation adaptive sealing device for the wire rod molten salt roller conveyor shown differs from that in Embodiment 1 in that: a pipe 10 is connected to the side wall of the upper box 9, and the upper box 9 is connected to the molten salt circulation system through the pipe 10.

[0060] In practical use, the technical solution of connecting the upper chamber 9 to the molten salt circulation system through the pipe 10 makes the connection between the upper chamber 9 and the molten salt circulation system more convenient, and ensures the airtightness of the upper chamber 9, avoiding the loss of molten salt caused by the connection between the upper chamber 9 and the molten salt circulation system. Example 10

[0061] Reference Figures 1-3 The high-temperature large deformation adaptive sealing device for the wire rod molten salt roller conveyor box shown differs from that in Embodiment 1 in that: multiple pairs of roller conveyor holes on the upper box 9 are evenly arranged on the opposite side walls of the upper box 9.

[0062] In actual use, multiple pairs of roller holes on the upper box 9 are evenly arranged on the opposite side walls of the upper box 9, which facilitates the manufacture and maintenance of the box.

[0063] In summary, this invention, through the organic arrangement of a molten salt circulation control system, a lower chamber, an upper chamber, molten salt, rollers, bearing seats, a fixed bracket, sealing components, and sprockets, ensures that even when the chamber deforms at temperatures above 550 degrees Celsius, the rollers can rotate freely, and only a small amount of molten salt flows away from the gap between the rollers and the upper chamber, keeping the wire rod constantly immersed in molten salt to achieve the purpose of heat treatment. This invention has a simple and reliable structure, low cost, and is easy to maintain.

[0064] The specific embodiments of this utility model have been described above. It should be understood that this utility model is not limited to the specific embodiments described above, and those skilled in the art can make various modifications or variations within the scope of the claims, which do not affect the substantive content of this utility model.

Claims

1. A high-temperature, large-deformation adaptive sealing device for a wire rod molten salt roller conveyor box, comprising at least a molten salt circulation control system, characterized in that, Also includes: Sprockets (1), bearing housings (2), fixed brackets (3), sealing components, roller conveyors (6), wire rods (7), molten salt (8), upper housing (9), pipes (10), and lower housing (11). in, The upper part of the lower box (11) is open and fixedly mounted on the fixed bracket (3); The upper part of the upper box (9) is open and is fixedly set on the upper end of the fixed bracket (3) and directly above the lower box (11). The opposite side walls of the upper box (9) are provided with multiple pairs of roller holes for the roller conveyor (6) to pass through. The upper box (9) is connected to the lower box (11) through the molten salt circulation system. Molten salt (8) is placed in the lower box (11) and the upper box (9); The roller conveyor (6) is set in two roller conveyor holes on opposite side walls of the upper housing (9); The bearing housing (2) is set at both ends of the roller conveyor (6), and the roller conveyor (6) is connected to the fixed bracket (3) through the bearing housing (2); There are two sets of sealing components, which are respectively fitted onto the roller conveyor (6) located inside the upper box (9). One end of each sealing component is connected to the inner sidewalls on both sides of the upper box (9), and the inner hole of the sealing component is fitted onto the roller conveyor (6). The sprocket (1) is set at one end of the roller conveyor (6), and the sprockets (1) on multiple roller conveyors (6) are connected in series.

2. The high-temperature, large-deformation adaptive sealing device for a wire rod molten salt roller conveyor box as described in claim 1, characterized in that, The sealing assembly includes a sealing plate (5) and a sealing plate slot (5a); the sealing plate (5) is sleeved on the roller conveyor (6) and inserted into the sealing plate slot (5a).

3. The high-temperature, large-deformation adaptive sealing device for a wire rod molten salt roller conveyor box as described in claim 2, characterized in that, The sealing plate slot (5a) is fixed on the upper box (9) and is located on both sides of the roller conveyor (6).

4. The high-temperature, large-deformation adaptive sealing device for a wire rod molten salt roller conveyor box as described in claim 2, characterized in that, The circumferential gap between the sealing plate (5) and the sealing plate slot (5a) is 5-8 mm, and the thickness gap is 0.1-0.2 mm.

5. The high-temperature, large-deformation adaptive sealing device for a wire rod molten salt roller conveyor box as described in claim 1, characterized in that, The roller conveyor (6) is located outside the upper box (9) and a salt baffle plate (4) is fixedly connected near the through hole of the upper box (9).

6. The high-temperature, large-deformation adaptive sealing device for a wire rod molten salt roller conveyor box as described in claim 5, characterized in that, The salt baffle (4) is set perpendicular to the roller conveyor (6) and is 20-30 mm away from the outer wall of the upper box (9).

7. The high-temperature, large-deformation adaptive sealing device for a wire rod molten salt roller conveyor box as described in claim 1, characterized in that, The axis of the roller conveyor (6) passes through the center of the roller conveyor hole on the side wall of the upper housing (9).

8. The high-temperature, large-deformation adaptive sealing device for a wire rod molten salt roller conveyor box as described in claim 1, characterized in that, The diameter of the roller hole on the upper box (9) is 1.3 to 1.8 times the diameter of the roller (6).

9. The high-temperature, large-deformation adaptive sealing device for a wire rod molten salt roller conveyor box as described in claim 1, characterized in that, The upper box (9) is provided with a pipe (10) on its side wall, and the upper box (9) is connected to the molten salt circulation system through the pipe (10).

10. The high-temperature, large-deformation adaptive sealing device for a wire rod molten salt roller conveyor box as described in claim 1, characterized in that, The multiple pairs of roller holes on the upper box (9) are evenly arranged on the opposite side walls of the upper box (9).

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