Argon blowing sliding plate steel ladle sliding nozzle mechanism

Abstract

The utility model discloses an argon blowing sliding plate steel ladle sliding nozzle mechanism which comprises a sliding frame, a door frame, a mounting plate, an upper sliding plate, a lower sliding plate, an upper nozzle, a lower nozzle and a jacking sleeve, the sliding frame is arranged in the door frame in a sliding fit mode, one side of the door frame is connected with the mounting plate through a door frame support, and the other side of the door frame is connected with a hooking pin through a face pressing hook. The upper sliding plate is mounted in the mounting cavity of the mounting plate, the lower sliding plate is mounted in the sliding plate cavity of the sliding frame, and the lower nozzle is mounted in the sliding frame through a jacking sleeve. Heat-resistant magnetic steel is arranged in the sliding plate cavity and the mounting cavity, and the heat-resistant magnetic steel is used for adsorbing and fixing the corresponding sliding plate; a dispersion block is mounted on the lower sliding plate and externally connected with an argon pipe through a threaded head. The lower sliding plate is additionally provided with the dispersion block to increase the ventilation function, and meanwhile when steel not needing the ventilation sliding plate is smelted, a common sliding plate is normally assembled, and use is not affected. The sliding plate is adsorbed by heat-resistant magnetic steel, so that the sliding plate can be quickly replaced.

Description

Technical Field

[0001] This utility model relates to the field of ladle sliding gate, specifically an argon-blown sliding plate ladle sliding gate mechanism. Background Technology

[0002] Currently, in the continuous casting process of steel plants, a ladle sliding gate mechanism is required. This mechanism uses a hydraulic cylinder to drive the sliding frame component in a reciprocating motion to control the molten steel flow. The existing ladle sliding gate mechanism lacks a dispersion block and ventilation function in its lower slide plate, making it impossible to guarantee the self-opening of the VC vacuum casting ladle sliding gate mechanism, thus hindering continuous casting without slag runoff and preventing secondary oxygen burning, which disrupts the steel plant's production rhythm. Secondly, most existing slide plate installations employ a clamping structure design within the slide plate cavity. When the slide plate needs to be replaced, and to expedite the replacement process without affecting converter operation, a hot replacement is required. However, the clamping structure design reduces replacement efficiency and can easily lead to "false" installation at high temperatures. Utility Model Content

[0003] To solve the above-mentioned technical problems, the inventors, through practice and summarization, derived the technical solution of this utility model, which adopts the following technical solution:

[0004] An argon-blown sliding plate ladle sliding nozzle mechanism includes a sliding frame, a door frame, a mounting plate, an upper sliding plate, a lower sliding plate, an inlet nozzle, a outlet nozzle, and a tightening sleeve. The sliding frame is slidably fitted inside the door frame. One side of the door frame is connected to the mounting plate via a door frame support, and the other side is connected via a face-pressing hook and a hook pin. The upper sliding plate is installed in the mounting cavity of the mounting plate, the lower sliding plate is installed in the sliding plate cavity of the sliding frame, and the outlet nozzle is installed inside the sliding frame via the tightening sleeve.

[0005] Both the sliding plate cavity and the mounting cavity are equipped with heat-resistant magnets, which are used to attract and fix the corresponding sliding plate.

[0006] A dispersion block is installed on the sliding plate, and an argon gas tube is connected to the dispersion block through a threaded head.

[0007] Preferably, the dispersion block is provided with a dispersion region one and a dispersion region two arranged alternately in the circumferential direction, and both dispersion region one and dispersion region two are spirally distributed along the thickness direction.

[0008] Preferably, the argon tube is connected in two sections by a compression fitting, with one end of the argon tube fixed to the top clamping sleeve by a tube clamp and the other end fixed to the back of the heat-resistant plate of the sliding frame by a spring clamp.

[0009] Preferably, a horizontal plate is installed on the door frame, and a central block and a rotating block are installed on the horizontal plate. The rotating block rotates around the central block. An argon gas tube groove one is provided on the central block, and an argon gas tube groove two is provided on the rotating block.

[0010] Preferably, the outer side of the center block is provided with a rotating ring groove, one end of the argon pipe groove I close to the diffusion block is provided with an arc-shaped guide area, and the argon pipe groove I is used for fixing the argon pipe and the argon pipe does not have relative axial displacement with the argon pipe groove I.

[0011] Preferably, the rotating block is provided with an arc-shaped sliding edge with adjustable position, the arc-shaped sliding edge is slidingly fitted in the rotating ring groove, and the side of the rotating block is provided with a guide block.

[0012] The arc-shaped guide groove is provided on the cross plate, the center of the arc-shaped guide groove coincides with the center of the center block, the arc-shaped guide groove is internally provided with a spring body, and one end of the guide block is connected with the spring body.

[0013] Preferably, the rotating block is provided with a baffle for covering the outer side of the argon pipe groove II.

[0014] Preferably, the side of the center block is provided with an argon pipe winding groove.

[0015] Preferably, the side of the rotating block away from the center block is provided with a jackscrew, the side of the rotating block close to the center block is provided with a sunken groove, the arc-shaped sliding edge is slidingly fitted in the sunken groove, and the jackscrew and the arc-shaped sliding edge are threadedly fitted away from the center block.

[0016] Compared with the prior art, the utility model has the following beneficial effects:

[0017] 1. The diffusion block is additionally arranged on the lower slide plate to increase the ventilation function, and meanwhile, when the steel grade does not need the ventilation slide plate in smelting, the ordinary slide plate can be normally assembled without affecting the use.

[0018] 2. One argon pipeline is additionally arranged to cooperate with the ventilation slide plate to use, to ensure that the VC vacuum ladle sliding nozzle mechanism is automatically opened, to realize the multiple continuous casting without drainage sand and to avoid the secondary oxygen burning.

[0019] 3. The argon pipeline is connected in two sections through the sleeve pipe joint, which is convenient for installation, disassembly and replacement.

[0020] 4. The argon pipeline is designed to be connected and fixed with the sliding frame component, and is regarded as a whole, and is not affected by the reciprocating motion of the sliding frame component.

[0021] 5. The diffusion block adopts the circumferentially uniformly distributed diffusion area I and diffusion area II, and is spirally distributed, which is beneficial to the steel liquid mixing and stirring after the argon is passed.

[0022] 6. The skateboard uses heat-resistant magnetic steel for quick and easy replacement.

[0023] 7. The argon pipeline uses a rotating block that rotates around the central block. When the water inlet is opened, the argon pipeline will automatically rewind and retract, avoiding problems such as the argon pipeline being pressured out of the fixed point or coming into contact with high-temperature components, causing thermal damage, and the wear of the argon pipeline caused by the repeated opening and closing of the water inlet. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0025] Figure 2 This is a cross-sectional view of the overall structure of this utility model;

[0026] Figure 3 This is a bottom view of the horizontal plate of this utility model;

[0027] Figure 4 This is a schematic diagram of the structure of the rotating block of this utility model;

[0028] Figure 5 This is a diagram showing the connection relationship between the rotating block and the arc-shaped sliding edge of this utility model;

[0029] Figure 6 This is a schematic diagram of the structure of the central block of this utility model;

[0030] Figure 7 This is a schematic diagram of the overall structure of the dispersion block of this utility model. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0032] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0033] Example 1

[0034] The argon blowing slide plate ladle slide gate mechanism comprises a slide frame 3, a door frame 2, a mounting plate 1, an upper slide plate 4, a lower slide plate 5, an upper gate 6, a lower gate 7 and a top tight sleeve 8, the slide frame 3 is slidably fitted in the door frame 2, one side of the door frame 2 is connected with the mounting plate 1 through a door frame support, the other side is connected with a surface pressure hook and a hooking pin, the upper slide plate 4 is mounted in a mounting cavity of the mounting plate 1, the lower slide plate 5 is mounted in a slide plate cavity of the slide frame 3, and the lower gate 7 is mounted in the slide frame 3 through the top tight sleeve 8.

[0035] Heat-resistant magnetic steel 9 is arranged in the slide plate cavity and the mounting cavity, and the heat-resistant magnetic steel 9 is used for adsorbing and fixing the corresponding slide plate.

[0036] The lower slide plate 5 is provided with a diffusion block 10, and the diffusion block 10 is externally connected with an argon pipe 11 through a threaded head.

[0037] When disassembling, the slide plate can be removed by overcoming the adsorption of the heat-resistant magnetic steel 9, and when assembling, the slide plate can be fixed under the adsorption of the heat-resistant magnetic steel 9, so that the disassembling and assembling are more simple and easy. Secondly, the diffusion block 10 can blow argon in the ladle, the lower slide plate is additionally provided with the diffusion block to increase the ventilation function, and when smelting a steel type that does not need a ventilation slide plate, the ordinary slide plate can be normally assembled, without affecting the use. The diversity of the mechanism is increased, the practicability is obviously enhanced, and the cost is saved.

[0038] Embodiment 2

[0039] In the mechanism, diffusion area one 101 and diffusion area two 102 are arranged on the diffusion block 10 in a staggered manner in the circumferential direction, and the diffusion area one 101 and the diffusion area two 102 are both in a spiral shape along the thickness direction. The argon gas is realized in a vortex diffusion through the ventilation difference between the diffusion area one 101 and the diffusion area two 102, which is beneficial to the stirring and mixing of the molten steel, improves the refining effect, and improves the utilization rate of argon.

[0040] Embodiment 3

[0041] In the mechanism, the argon pipe 11 is connected in two sections through a clamping sleeve type pipe joint, one end of the argon pipe 11 is fixed on the top tight sleeve 8 through a pipe clamp 14, and the other end is fixed on the back of the heat-resistant plate 12 of the slide frame 3 through a spring clamp 13. The argon pipe is connected in two sections through the clamping sleeve type pipe joint, which is convenient for installation, disassembly and replacement. At the same time, the argon pipe is designed in the passage below the heat insulation plate, avoiding the influence of molten steel splashing and heat radiation, greatly improving the service life and safety of the pipeline. The argon pipe is designed to be connected and fixed with the slide frame component, and is regarded as a whole, and is not affected by the reciprocating motion of the slide frame component. At the same time, the pipeline and the heat insulation plate are detachably fixed by the spring clamp, without affecting the disassembly and replacement of the heat insulation plate.

[0042] Embodiment 4

[0043] In the mechanism, the door frame 2 is provided with a horizontal plate 15, the horizontal plate 15 is provided with a center block 16 and a rotating block 17, the rotating block 17 rotates around the center block 16, the center block 16 is provided with an argon pipe groove one 161, and the rotating block 17 is provided with an argon pipe groove two 171.

[0044] The outer side of the center block 16 is provided with a rotating ring groove 162, the argon pipe groove one 161 is provided with an arc-shaped guide area close to one end of the diffusion block 10, the argon pipe groove one 161 is used for fixing the argon pipe 11 and the argon pipe 11 does not have relative axial displacement with the argon pipe groove one 161.

[0045] The rotating block 17 is provided with an arc-shaped sliding edge 172 which is position-adjustable, the arc-shaped sliding edge 172 is slidingly fitted in the rotating ring groove 162, and the side of the rotating block 17 is provided with a guide block 173.

[0046] The horizontal plate 15 is provided with an arc-shaped guide groove 174, the center of the arc-shaped guide groove 174 coincides with the center of the center block 16, the arc-shaped guide groove 174 is internally provided with a spring body 175 (tension spring), and one end of the guide block 173 and the spring body 175 is connected. When the water gap is closed, the diffusion block 10 moves rightward with the sliding frame 3, after the rightward movement, the effect of the argon pipe 11 on the rotating block 17 is lost, and the rotating block 17 rotates around the center block 16 under the action of the tension spring, and the argon pipe 11 is wound on the argon pipe winding groove 163.

[0047] The rotating block 17 is provided with a baffle 176 for covering the outer side of the argon pipe groove two 171, so that the argon pipe 11 can axially slide in the inside.

[0048] The side of the center block 16 is provided with the argon pipe winding groove 163.

[0049] The side of the rotating block 17 away from the center block 16 is provided with a top wire 177, the side of the rotating block 17 close to the center block 16 is provided with a sunken groove, the arc-shaped sliding edge 172 is slidingly fitted in the sunken groove, and the top wire 177 and the arc-shaped sliding edge 172 are threadedly fitted away from the center block 16.

[0050] When the sliding frame 3 moves laterally, the argon pipe will be bent and deformed, due to the uncertainty of the bending deformation in the direction, it is possible to be directly exposed to the outside of the heat-resistant plate or directly contact the high-temperature component, causing thermal damage of the argon pipe, and also causing the argon pipe to be stuck in the door frame 2, and the argon pipe will also cause serious wear, and the price of the pipe is relatively high, the maintenance cost is high, by adding the rotating block 17, the deformation of the pipe can be overcome under the action of the tension spring, the rotating block 17 will drive the argon pipe to wind around the argon pipe winding groove 163, and the degree of wear of the argon pipe is reduced.

[0051] The above merely describes a preferred embodiment of the present application, and the protection scope of the present application is not limited thereto. The replacement can be a replacement of part of the structure, device, method step, or a complete technical solution. According to the technical solution and the inventive concept of the present application, equivalent replacement or change should be covered in the protection scope of the present application.

Claims

1. An argon-blown sliding plate ladle sliding nozzle mechanism, comprising a sliding frame (3), a door frame (2), a mounting plate (1), an upper sliding plate (4), a lower sliding plate (5), an upper nozzle (6), a lower nozzle (7), and a tightening sleeve (8), wherein the sliding frame (3) is slidably fitted within the door frame (2), one side of the door frame (2) is connected to the mounting plate (1) via a door frame support, and the other side is connected via a surface-pressing hook and a hook pin, the upper sliding plate (4) is installed in the mounting cavity of the mounting plate (1), the lower sliding plate (5) is installed in the sliding plate cavity of the sliding frame (3), and the lower nozzle (7) is installed within the sliding frame (3) via the tightening sleeve (8), characterized in that: Both the slide plate cavity and the mounting cavity are provided with heat-resistant magnets (9), which are used to adsorb and fix the corresponding slide plate. A dispersion block (10) is installed on the lower slide plate (5), and an argon gas pipe (11) is connected to the dispersion block (10) through a threaded head.

2. The argon-blown sliding plate ladle sliding nozzle mechanism according to claim 1, characterized in that, The dispersion block (10) is provided with a staggered dispersion region one (101) and a dispersion region two (102) in the circumferential direction. Both dispersion region one (101) and dispersion region two (102) are spirally distributed along the thickness direction.

3. The argon-blown sliding plate ladle sliding nozzle mechanism according to claim 1, characterized in that, The argon tube (11) is connected in two sections by a compression fitting. One end of the argon tube (11) is fixed to the top sleeve (8) by a tube clamp (14), and the other end is fixed to the back of the heat-resistant plate (12) of the sliding frame (3) by a spring clamp (13).

4. The argon-blown sliding plate ladle sliding nozzle mechanism according to claim 1, characterized in that, A horizontal plate (15) is installed on the door frame (2). A central block (16) and a rotating block (17) are installed on the horizontal plate (15). The rotating block (17) rotates around the central block (16). An argon tube groove one (161) is provided on the central block (16), and an argon tube groove two (171) is provided on the rotating block (17).

5. The argon-blown sliding plate ladle sliding nozzle mechanism according to claim 4, characterized in that, A rotating annular groove (162) is provided on the outer side of the central block (16), and an arc-shaped guide area is provided at one end of the argon tube groove (161) near the dispersion block (10). The argon tube groove (161) is used to fix the argon tube (11) and the argon tube (11) does not have relative axial displacement with the argon tube groove (161).

6. The argon-blown sliding plate ladle sliding nozzle mechanism according to claim 5, characterized in that, The rotating block (17) is provided with an adjustable arc-shaped sliding edge (172), which slides in the rotating annular groove (162). A guide block (173) is provided on the side of the rotating block (17). An arc-shaped guide groove (174) is provided on the horizontal plate (15). The center of the arc-shaped guide groove (174) coincides with the center of the central block (16). A spring body (175) is installed inside the arc-shaped guide groove (174). One end of the guide block (173) is connected to the spring body (175).

7. The argon-blown sliding plate ladle sliding nozzle mechanism according to claim 4, characterized in that, A baffle (176) is installed on the rotating block (17) to cover the outside of the argon tube slot two (171).

8. The argon-blown sliding plate ladle sliding nozzle mechanism according to claim 4, characterized in that, The side of the central block (16) is provided with an argon tube winding groove (163).

9. The argon-blown sliding plate ladle sliding nozzle mechanism according to claim 4, characterized in that, The rotating block (17) is provided with a set screw (177) on the side opposite to the center block (16), and a groove is provided on the side of the rotating block (17) close to the center block (16). The arc-shaped sliding edge (172) is slidably fitted in the groove, and the set screw (177) and the arc-shaped sliding edge (172) are threadedly fitted on the side away from the center block (16).

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