Tundish high-temperature nozzle replacement device and method

Abstract

The tundish high-temperature water gap replacing device comprises an operating rod and a supporting device movably connected with the operating rod, the front end of the operating rod is detachably connected with a first clamping end, a movable rod is arranged in the operating rod, the front end of the movable rod is detachably connected with a second clamping end, and the second clamping end is connected with the supporting device. The first clamping end and the second clamping end form a containing and clamping space of the submersed nozzle, the submersed nozzle is connected to the bottom of a tundish, a hinge sleeve is arranged at the connecting position of the supporting device and the operating rod, the hinge sleeve is detachably connected with the supporting device, and the supporting device is connected with the operating rod. The supporting device is close to the first clamping end of the operating rod, a turnover frame is arranged at the rear end of the operating rod, the turnover frame is of a U-shaped structure and is arranged in an open mode, the movable rod is arranged in the operating rod in an inserted connection mode, and the operating rod is connected with an electric air cylinder through a bolt. The output end of the electric air cylinder is fixedly connected with the movable rod.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of metallurgical continuous casting equipment, and particularly relates to a tundish high-temperature nozzle replacement device and method. BACKGROUND

[0002] In the continuous casting production process, the tundish nozzle needs to be replaced regularly due to erosion. The existing technology has two major pain points: high-temperature operation risk: the temperature of the nozzle after roasting is above 1200 DEG C, which cannot be directly contacted by manual operation, and the traditional lifting appliance cannot realize stable clamping; space limitation operation difficulty: the distance between the bottom of the tundish car and the top of the crystallizer is usually less than the length of the nozzle (about 800-1200 mm), and the nozzle in the vertical state needs to be converted to a horizontal state and then inserted into the clamping groove.

[0003] In view of the above factors, a tundish high-temperature nozzle replacement device and method are provided, which are suitable for clamping, overturning and installing the high-temperature nozzle above 1200 DEG C in the limited space of the crystallizer area of the continuous casting machine. SUMMARY

[0004] The purpose of the present application is to provide a tundish high-temperature nozzle replacement device and method to solve the problems raised in the background.

[0005] The purpose of the present application is achieved by the following technical scheme: a tundish high-temperature nozzle replacement device, comprising an operating rod and a support device movably connected to the operating rod, the front end of the operating rod is detachably connected to a first clamping end, the operating rod is provided with a movable rod, the front end of the movable rod is detachably connected to a second clamping end, the first clamping end and the second clamping end form a containing and clamping space of the submerged nozzle, and the submerged nozzle is connected to the bottom of the tundish.

[0006] The support device is provided with a hinge sleeve at the connection with the operating rod, and the hinge sleeve is detachably connected to the support device.

[0007] The support device is located close to the first clamping end of the operating rod, and the support device is located at one third of the operating rod.

[0008] Further, the rear end of the operating rod is provided with a turnover frame, and the turnover frame is in a U-shaped structure and is provided in an open manner.

[0009] Further, the movable rod is provided in the operating rod in a plug-in manner, the operating rod is connected to an electric cylinder through a bolt, and the output end of the electric cylinder is fixedly connected to the movable rod.

[0010] The movable rod provided in the operating rod can approach or move away from the first clamping end along the operating rod.

[0011] Further, the detachable connection between the operating rod and the first clamping end is a threaded connection.

[0012] The first clamping end comprises a dismounting end and a clamping part connected to the dismounting end by a threaded connection, and the clamping part is in an open frame structure.

[0013] The front end of the operating rod is connected to a dismounting end by a threaded connection, the dismounting end extends outwardly to a connecting end, and the clamping part is connected to the connecting end by a threaded connection.

[0014] Further, the detachable connection between the operating rod and the first clamping end is a threaded connection.

[0015] Further, the clamping space of the immersion nozzle formed by the first clamping end and the second clamping end is matched with the receiving end of the immersion nozzle.

[0016] The receiving end is arranged in an integrated structure with the immersion nozzle, and the diameter of the receiving end is greater than the diameter of the immersion nozzle.

[0017] Further, an installation hole is formed at the position of the receiving end, the installation hole is matched with the second clamping end, and the first clamping end and the second clamping end are arranged oppositely.

[0018] The receiving end is close to the position of the immersion nozzle, and the receiving end is in an open structure symmetrically arranged upward and downward.

[0019] Further, the supporting device comprises a base and a moving wheel arranged on the base, and the moving wheel is arranged in a triangular shape on the base.

[0020] The lifting device is fixedly arranged on the base, and the end surface of the lifting device is connected to the hinge sleeve by a threaded connection.

[0021] Further, the hinge sleeve comprises a positioning frame in a concave shape, the receiving ring is connected to the positioning frame by a hinge connection, the receiving ring is in a cylindrical structure, and the inner wall of the receiving ring is rotatably connected to the operating rod.

[0022] An application method of a tundish high-temperature nozzle replacement device, specifically comprising the following steps:

[0023] The movable rod is movably arranged in the operating rod, the end of the movable rod is connected to the output end of the electric cylinder, and the movable rod arranged in the operating rod can move towards the first clamping end or away from the first clamping end under the action of the electric cylinder, so as to make the clamping space of the immersion nozzle formed by the first clamping end and the second clamping end matched with the receiving end of the immersion nozzle to clamp the immersion nozzle.

[0024] The operation rod is arranged on the supporting device, the supporting device is provided with a moving wheel, and the supporting device is convenient to move in the use state and can support the operation rod through the hinged sleeve; after the first clamping end and the second clamping end clamp the submerged nozzle, the angle of the submerged nozzle is controlled through the turnover frame at the rear end of the operation rod.

[0025] Compared with the prior art, the present application has the following beneficial effects:

[0026] The first clamping end and the second clamping end clamp the submerged nozzle through the electric cylinder pushing the movable rod, and trapezoidal grooves are arranged on the end face of the first clamping end and the inner wall of the second clamping end for anti-skid.

[0027] The present application reduces the human support in the use state, and the supporting device is provided with a moving wheel, and the supporting device is convenient to move in the use state and can support the operation rod through the hinged sleeve; after the first clamping end and the second clamping end clamp the submerged nozzle, the angle of the submerged nozzle is controlled through the turnover frame at the rear end of the operation rod.

[0028] The present application sets the operation rod and the movable rod in cooperation, the operation rod is extended into the bottom of the tundish through the supporting device, and the high-temperature operation risk is avoided. BRIEF DESCRIPTION OF DRAWINGS

[0029] Figure 1 is the overall connection schematic diagram of the present application;

[0030] Figure 2 is the overall connection schematic diagram of the present application Figure 1 is the local enlarged schematic diagram of the present application;

[0031] Figure 3 is the connection schematic diagram of the submerged nozzle and the tundish of the present application;

[0032] Figure 4 is the plane schematic diagram of the supporting device of the present application;

[0033] Figure 5 is the connection schematic diagram of the positioning frame and the receiving ring of the present application;

[0034] Figure 6 is the schematic diagram of the present application with a rotating sleeve. DETAILED DESCRIPTION

[0035] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0036] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be directly connected, or indirectly connected through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0037] In the description of the present application, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore cannot be understood as a limitation on the present application.

[0038] As shown in Figures 1-6 A middle package high temperature nozzle replacement device, comprising an operating rod 1 and a support device 2 movably connected with the operating rod 1, the front end of the operating rod 1 is detachably connected with a first clamping end 3, a movable rod 4 is arranged in the operating rod 1, the front end of the movable rod 4 is detachably connected with a second clamping end 5, the first clamping end 3 and the second clamping end 5 form a containing and clamping space of a submerged nozzle 6, and the submerged nozzle 6 is connected at the bottom of a tundish 7.

[0039] A hinged sleeve 8 is arranged at the connection between the support device 2 and the operating rod 1, and the hinged sleeve 8 is detachably connected with the support device 2.

[0040] The support device 2 is located close to the first clamping end 3 of the operating rod 1, and the support device 2 is located at one third position of the operating rod 1.

[0041] In order to facilitate rotation through the turnover frame 9 at the rear end in the use state, the rear end of the operating rod 1 is provided with a turnover frame 9, and the turnover frame 9 is in U-shaped structure and is arranged in open type.

[0042] In order to facilitate the driving of the movable rod 4 to approach or move away from the first clamping end 3 by setting an electric cylinder 10 in the use state, the movable rod 4 is arranged in the operating rod 1 in plug-in manner, the operating rod 1 is connected with the electric cylinder 10 through bolts, and the output end of the electric cylinder 10 is fixedly connected with the movable rod 4.

[0043] The movable rod 4 arranged in the operating rod 1 can approach or move away from the first clamping end 3 along the operating rod 1.

[0044] In order to facilitate the replacement of the first clamping end 3 in the use state, the detachable connection between the operating rod 1 and the first clamping end 3 is a bolt connection.

[0045] The first clamping end 3 comprises a disassembly end 11 and a clamping part 12 connected to the disassembly end 11 in a bolted manner, and the clamping part 12 is in an open frame structure

[0046] The front end of the operating rod 1 is connected to the disassembly end 11 in a threaded manner, the disassembly end 11 extends outwardly to a connecting end 13, and the clamping part 12 is connected to the connecting end 13 by a bolt.

[0047] In order to facilitate the replacement in the use state, the detachable connection between the movable rod 4 and the second clamping end 5 is a threaded connection.

[0048] In order to facilitate the replacement in the use state, the disassembly end 11 is provided with a receiving end 14 for cooperating with the first clamping end 3 and the second clamping end 5 to limit the first clamping end 3 and the second clamping end 5.

[0049] The receiving end 14 and the submerged nozzle 6 are provided in an integral structure, and the diameter of the receiving end 14 is greater than the diameter of the submerged nozzle 6.

[0050] In order to facilitate better fixation of the nozzle in the use state, the receiving end 14 is provided with a mounting hole 15, the mounting hole 15 cooperates with the second clamping end 5, and the first clamping end 3 and the second clamping end 5 are arranged opposite to each other.

[0051] The receiving end 14 is close to the position of the submerged nozzle 6, and the receiving end 14 is in an open structure symmetrically above and below.

[0052] The mounting hole is provided, and in the use state, the second clamping end 5 is fixed by cooperating with the mounting hole 15 under the driving of the electric cylinder.

[0053] In order to facilitate the replacement in the use state, the support device 2 comprises a base 16 and a moving wheel 17 arranged on the base 16, and the moving wheel 17 is arranged in a triangular shape on the base 16.

[0054] The base 16 is fixedly provided with a lifting device 18, and the end surface of the lifting device 18 is connected to the hinge sleeve 8 in a bolted manner, wherein the lifting device 18 is a manual jack structure or an electric jack structure.

[0055] The relative position height of the operating rod in use is adjusted by a manual jack structure or an electric jack structure.

[0056] In order to facilitate the rotation of the operation and the position movement of the operating rod in the hinged state in use by setting the hinge sleeve 8, the hinge sleeve 8 comprises a positioning frame 19 in the shape of a concave character, the positioning frame 19 is hingedly connected with a receiving ring 20, the receiving ring 20 is a cylindrical structure, and a rotating sleeve is arranged on the inner wall of the receiving ring 20, the rotating sleeve 21 is rotatably connected with the receiving ring 20, and the rotating sleeve 21 is welded with the operating rod 1.

[0057] The outer wall circumferential surface of the rotating sleeve 21 is provided with a sliding block embedded in a sliding groove of the receiving ring 20, and the above structure can be replaced by a bearing (not shown in the figure).

[0058] An application method of a tundish high-temperature nozzle replacement device, specifically comprising the following steps:

[0059] The operating rod movably embeds a movable rod, the end of the movable rod is connected with the output end of the electric cylinder, and the movable rod arranged in the operating rod can approach or move away from the first clamping end along the operating rod under the action of the electric cylinder, so as to make the clamping space of the submerged nozzle formed by the first clamping end and the second clamping end cooperate with the receiving end of the submerged nozzle to clamp the submerged nozzle.

[0060] The operating rod is arranged on the supporting device, the supporting device has a moving wheel, which is convenient to move in use and can support the operating rod through the hinge sleeve, and the angle of the submerged nozzle is controlled by rotating the turnover frame at the rear end of the operating rod after the first clamping end and the second clamping end cooperate to clamp the submerged nozzle.

[0061] It is obvious for those skilled in the art that the present application is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be regarded as exemplary and non-limiting, and the scope of the present application is defined by the appended claims rather than the above description, and all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present application. Any reference signs in the claims should not be regarded as limiting the claims involved.

[0062] Furthermore, it should be understood that although the specification is described in terms of embodiments, not every embodiment includes every feature or implementation described herein. The specification can include implicit combinations of explicitly mentioned features and / or implicit combinations of implicitly mentioned features. Such combinations are also expressly included within the scope of the specification and an embodiment.

Claims

1. A tundish high-temperature nozzle replacing device, characterized by: Includes an operating lever (1) and a support device (2) movably connected to the operating lever (1). The front end of the operating lever (1) is detachably connected to a first clamping end (3). A movable rod (4) is provided inside the operating lever (1). The front end of the movable rod (4) is detachably connected to a second clamping end (5). The first clamping end (3) and the second clamping end (5) form a space for accommodating and clamping an immersion nozzle (6). The immersion nozzle (6) is connected to the bottom of the intermediate tundish (7). A hinge sleeve (8) is provided at the connection between the support device (2) and the operating rod (1), and the hinge sleeve (8) is detachably connected to the support device (2). The support device (2) is located near the first clamping end (3) of the operating lever (1), and the support device (2) is located at one-third of the position of the operating lever (1).

2. The tundish high-temperature nozzle replacement device according to claim 1, characterized by: The rear end of the operating lever (1) is provided with a flipping frame (9), which has a U-shaped structure and is open.

3. The high temperature nozzle changing device for a tundish according to claim 2, characterized in that: The movable rod (4) is installed in the operating rod (1) by plugging in. The operating rod (1) is connected to the electric cylinder (10) by bolts. The output end of the electric cylinder (10) is fixedly connected to the movable rod (4). The movable rod (4) provided inside the operating rod (1) can move closer to or further away from the first clamping end (3) along the operating rod (1).

4. The high temperature nozzle changing device for a tundish according to claim 3, characterized by: The detachable connection between the operating lever (1) and the first clamping end (3) is a bolt connection; The first clamping end (3) includes a disassembly end (11) and a clamping part (12) connected to the disassembly end (11) by bolts. The clamping part (12) has an open frame structure. The front end of the operating lever (1) is connected to the disassembly end (11) by a thread. The disassembly end (11) extends outward to the connecting end (13), and the clamping part (12) is connected to the connecting end (13) by a bolt.

5. The high temperature nozzle changing device for a tundish according to claim 4, characterized in that: The movable rod (4) and the second clamping end (5) are detachably connected by a threaded connection.

6. The high temperature nozzle changing device for a tundish according to claim 5, characterized by: The accommodating clamping space of the immersion nozzle (6) formed by the first clamping end (3) and the second clamping end (5) is matched with the receiving end (14) of the immersion nozzle (6); The receiving end (14) and the immersion nozzle (6) are integrally structured, and the diameter of the receiving end (14) is larger than the diameter of the immersion nozzle (6).

7. The high temperature nozzle changing device for a tundish according to claim 5, characterized by: The receiving end (14) is provided with an installation hole (15), which is engaged with the second clamping end (5). The first clamping end (3) and the second clamping end (5) are arranged opposite to each other. The receiving end (14) is located near the immersion nozzle (6), and the receiving end (14) has an open structure with symmetrical upper and lower parts.

8. The high temperature nozzle changing device for a tundish according to claim 7, characterized by: The support device (2) includes a base (16) and a set of movable wheels (17) on the base (16). The movable wheels (17) are arranged in a triangular pattern on the base (16). A lifting device (18) is fixedly provided on the base (16), and a hinge sleeve (8) is connected to the end face of the lifting device (18) by bolts.

9. The high temperature nozzle changing device for a tundish according to claim 8, characterized in that: The articulated sleeve (8) comprises a positioning frame (19) in the shape of a concave letter, and a receiving ring (20) is connected to the positioning frame (19) in an articulated manner, the receiving ring (20) is in a cylindrical structure, and the inner wall of the receiving ring (20) is rotatably connected to the operating rod (1).

10. A method of using the high-temperature nozzle changing device for a tundish according to any one of claims 1 to 9, characterized by: Specifically comprising the following steps: The movable rod is movably sleeved in the operating rod, the end of the movable rod is connected to the output end of the electric cylinder, and the movable rod arranged in the operating rod can be close to or away from the first clamping end along the operating rod under the action of the electric cylinder, so that the accommodation clamping space of the submerged nozzle formed by the first clamping end and the second clamping end is matched with the receiving end of the submerged nozzle to clamp the submerged nozzle; Wherein, the operating rod is arranged on the supporting device, the supporting device has a moving wheel, which is convenient to move in use and can support the operating rod through the articulated sleeve, and after the first clamping end and the second clamping end clamp the submerged nozzle, the angle of the submerged nozzle is controlled by rotating the turnover frame at the rear end of the operating rod.

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