Light quick ladle nozzle replacing device

Abstract

The utility model discloses a light quick ladle nozzle replacing device which comprises a pull rod (1) matched with a nozzle (4), a nozzle support (2) and a fastener (3), the pull rod (1) is T-shaped, a horizontal section (1a) of the pull rod (1) extends into the lower part of the nozzle (4) and clamps the lower end part of the nozzle (4), and a vertical section (1b) of the pull rod (1) upwards penetrates through the nozzle support (2) and extends out to be connected with the fastener (3); the water gap support (2) comprises an upper fixing seat (21) and a lower fixing seat (22) which are coaxial, and the upper fixing seat and the lower fixing seat are both of a cylinder structure with a through hole and are connected through a set of wing-shaped fixing plates (23); the fastener (3) comprises a hexagonal nut (31), handles (32) are fixed on the hexagonal nut (31) at intervals, and extension lines of the three handles (32) intersect at the circle center of the hexagonal nut (31). The device has the advantages that the ladle nozzle can be quickly replaced, the replacement time of the ladle nozzle is shortened, and the labor intensity of operators is relieved.

Description

Technical Field

[0001] This utility model belongs to the technical field of ladle nozzle replacement, and particularly relates to a lightweight and quick ladle nozzle replacement device. Background Technology

[0002] The steel market is becoming increasingly competitive, with a fast production pace that places high demands on each stage of production. The time required to change the ladle nozzle directly affects ladle turnover and production rhythm. A long changeover time can render online ladles unusable, forcing them to wait or use non-turnover ladles, and may even affect the quality of the molten steel.

[0003] Currently, replacing water inlets mainly relies on manual pulling or hydraulic pulling. If manual pulling is used, it is time-consuming and labor-intensive, taking anywhere from 20 minutes to over 60 minutes; if hydraulic pulling is used, the complex hydraulic system and heavy equipment make it difficult to operate. Utility Model Content

[0004] The purpose of this invention is to solve the problems of low efficiency, time-consuming and labor-intensive replacement of ladle nozzles, and difficulty in operation of existing ladle nozzle replacement devices. It provides a lightweight and quick ladle nozzle replacement device that can quickly replace ladle nozzles, reduce replacement time, and can be operated by a single person, reducing the labor intensity of operators and providing ample time for production.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A lightweight and quick-connect ladle nozzle replacement device includes a pull rod, a nozzle support, and a fastener that cooperate with the nozzle. The pull rod includes a left pull rod and a right pull rod, both of which are "7" shaped structures. When combined, they form a T-shaped pull rod. The horizontal section of the pull rod extends below the nozzle and locks the lower end of the nozzle. The vertical section of the pull rod extends upward through the nozzle support and connects to the fastener.

[0007] The sprue support includes a coaxial upper fixed seat and a lower fixed seat. Both the upper and lower fixed seats are cylindrical structures with through holes, and they are connected by a set of airfoil fixed plates. The inner and outer diameters of the lower fixed seat are larger than those of the upper fixed seat, and the through holes of the lower fixed seat are located on the periphery of the sprue.

[0008] The fastener is a hexagonal nut, with a handle fixed to each side of the hexagonal nut, and the extensions of the three handles intersect at the center of the hexagonal nut.

[0009] Furthermore, the vertical section of the pull rod is provided with external threads, and the hexagonal nut of the fastener is fastened to the pull rod through the external threads.

[0010] Further, the vertical section of the left pull rod is provided with a groove inwardly recessed, which is inwardly recessed by 2mm along the horizontal direction from 100mm away from the tail end to the tail end section.

[0011] Further, the vertical section of the right pull rod is provided with a protrusion outwardly protruded, which is outwardly protruded by 2mm along the horizontal direction from 100mm away from the tail end to the tail end section.

[0012] Further, when the left pull rod and the right pull rod are combined, the protrusion and the groove are embedded with each other.

[0013] Further, the water port support is arranged above the water port, is arranged above the steel ladle bottom steel plate and the steel ladle mechanism base plate, and the water port support, the pull rod and the fastener are located on the same axis.

[0014] In the technical scheme of the utility model, the pull rod is divided into two parts and is inserted into the water port and beyond the water port, after the two parts of the pull rod are inserted, the pull rod is combined into one, is pulled out, the pull rod is pressed against the water port, the water port support is sleeved on the pull rod, the fastener is screwed on the pull rod, the handle is rotated to the human power cannot rotate, the force bar is connected on the handle and continues to rotate, until the water port is loosened, when the water port is loosened, the fastener and the water port support are removed, the water port is pulled out by the pull rod. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is the combination drawing of the light quick steel ladle water port replacement device of the utility model;

[0016] Figure 2 It is the structure drawing of the left pull rod and the right pull rod of the utility model;

[0017] Figure 3 It is the structure drawing of the pull rod combined in the utility model;

[0018] Figure 4 It is the structure drawing of the water port support of the utility model;

[0019] Figure 5 It is the structure drawing of the fastener of the utility model. DETAILED DESCRIPTION

[0020] EMBODIMENT

[0021] In order to make the utility model more clearly, the light quick steel ladle water port replacement device of the utility model is further explained below in combination with the drawings, and the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0022] Refer to Figure 1The utility model relates to a light and quick ladle nozzle replacement device, characterized in that:

[0023] The device comprises a pull rod 1, a nozzle holder 2 and a fastener 3 matched with the nozzle 4;

[0024] Referring to Figure 1 , Figure 2 and Figure 3 , the pull rod 1 comprises a left pull rod 11 and a right pull rod 12, both of which are "7"-shaped and combined to form a T-shaped pull rod 1, the horizontal section 1a of the pull rod 1 extends into the lower end of the nozzle 4, and the vertical section 1b of the pull rod 1 extends upward through the nozzle holder 2 and is connected to the fastener 3;

[0025] The vertical section of the left pull rod 11 is provided with an inwardly recessed groove 11a, which is recessed inward by 2 mm along the horizontal direction from 100 mm away from the tail end to the tail end section, and the vertical section of the right pull rod 12 is provided with an outwardly protruding protrusion 12a, which is protruded outward by 2 mm along the horizontal direction from 100 mm away from the tail end to the tail end section, and when the left pull rod 11 and the right pull rod 12 are combined, the protrusion 12a is embedded in the groove 11a;

[0026] Referring to Figure 1 and Figure 4 , the nozzle holder 2 comprises coaxial upper and lower fixed seats 21 and 22, both of which are cylindrical structures with through holes, and are connected by a group of airfoil-shaped fixed plates 23, and the inner and outer diameters of the lower fixed seat 22 are larger than those of the upper fixed seat 21;

[0027] The nozzle holder 2 is arranged above the nozzle 4 and is erected on the steel ladle bottom steel plate 5 and the steel ladle mechanism foundation plate 6, and the nozzle holder 2, the pull rod 1 and the fastener 3 are located on the same axis;

[0028] Referring to Figure 1 and Figure 5 , the fastener 3 is a hexagonal nut 31, and a handle 32 is fixed on every other side of the hexagonal nut 31, and the extension lines of the three handles 32 intersect at the center of the hexagonal nut 31;

[0029] The vertical section of the pull rod 1 is provided with external threads 1c, and the hexagonal nut 31 of the fastener 3 is fastened and connected to the pull rod 1 through the external threads 1c.

[0030] In this embodiment, the total length of the pull rod 1 is 800 mm, and the T-shaped pull rod is a two-in-one double "7"-shaped structure.

[0031] In the embodiment, the upper fixing base 21 of the nozzle holder 2 is a cylinder with an outer diameter of 90 mm, an inner diameter of 50 mm and a height of 100 mm, the lower fixing base 22 is a cylinder with an outer diameter of 260 mm, an inner diameter of 220 mm and a height of 60 mm, and the distance between the lower surface of the upper fixing base 21 and the upper surface of the lower fixing base 22 is 80 mm.

[0032] In the embodiment, the wing-shaped fixing plate 23 is a quadrilateral with a length of 20 mm, a width of 100 mm, a height of 103.08 mm and a depth of 199.06 mm.

[0033] In the embodiment, the fastener 3 is a hexagonal nut with an inner diameter of 50 mm, and the handle 32 is added with a length of 100 mm at an interval of one side.

[0034] In use, the ladle nozzle is cleaned and the base plate is leveled. Then the left and right pull rods are separated and inserted into the nozzle 4 and beyond the nozzle 4, after the two parts of the pull rod are inserted, the pull rod 1 is combined into one, pulled outwards, so that the pull rod 1 abuts against the nozzle 4. The nozzle holder 2 is sleeved on the pull rod 1, so that the lower part of the nozzle holder 2 is outside the nozzle 4. The fastener 3 is screwed on the pull rod 1, the handle 32 is rotated until it cannot be rotated manually, the force rod is connected to the handle 32 to continue to rotate until the nozzle 4 is loosened. When the nozzle 4 is loosened, the fastener 3 and the nozzle holder 2 are removed, and the nozzle 4 is pulled out by the pull rod 1. The device can control the replacement time of the ladle nozzle within 10 minutes, and reduce the labor intensity of the operator.

[0035] In addition to the above embodiments, the utility model can also have other implementation manners. Any technical solution formed by equivalent replacement or equivalent transformation falls within the protection scope required by the utility model.

Claims

1. A light and fast ladle nozzle replacement device, characterized in that: it comprises a pull rod (1) matched with the nozzle (4), a nozzle holder (2) and a fastener (3), the pull rod (1) comprises a left pull rod (11) and a right pull rod (12), both of which are "7" type structures and form a T-shaped pull rod (1) after combination, the horizontal section (1a) of the pull rod (1) extends into the lower part of the nozzle (4) and clamps the lower end of the nozzle (4), the vertical section (1b) of the pull rod (1) extends upwards through the nozzle holder (2) and is connected with the fastener (3); the nozzle holder (2) comprises coaxial upper and lower fixed seats (21) and (22), both of which are cylindrical structures with through holes, and are connected by a group of wing-shaped fixed plates (23), the inner and outer diameters of the lower fixed seat (22) are larger than those of the upper fixed seat (21), and the through hole of the lower fixed seat (22) is arranged at the periphery of the nozzle (4); the fastener (3) is a hexagonal nut (31), and a handle (32) is fixed on every other side of the hexagonal nut (31), and the extension lines of the three handles (32) intersect at the center of the hexagonal nut (31).

2. The light and fast ladle nozzle replacement device according to claim 1, characterized in that: an external thread (1c) is arranged on the vertical section (1b) of the pull rod (1), and the hexagonal nut (31) of the fastener (3) is fastened and connected with the pull rod (1) through the external thread (1c).

3. The light and fast ladle nozzle replacement device according to claim 1 or 2, characterized in that: an inwardly recessed groove (11a) is arranged on the vertical section of the left pull rod (11), and the groove (11a) is recessed inwardly by 2mm along the horizontal direction from 100mm away from the tail end to the tail end section.

4. The light and fast ladle nozzle replacement device according to claim 3, characterized in that: an outwardly protruding protrusion (12a) is arranged on the vertical section of the right pull rod (12), and the protrusion (12a) is protruded outwardly by 2mm along the horizontal direction from 100mm away from the tail end to the tail end section.

5. The light and fast ladle nozzle replacement device according to claim 4, characterized in that: when the left pull rod (11) and the right pull rod (12) are combined, the protrusion (12a) is embedded in the groove (11a) in a mutually embedded manner.

6. The light and fast ladle nozzle replacement device according to claim 1 or 2, characterized in that: the nozzle holder (2) is arranged above the nozzle (4) and is erected on the ladle bottom steel plate (5) and the ladle mechanism foundation plate (6), and the nozzle holder (2), the pull rod (1) and the fastener (3) are located on the same axis. ​ ​ ​ ​ ​ ​

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