Anti-splashing protection device of phosphorus removal machine

Abstract

The utility model relates to an anti-splashing protection device of a dephosphorization machine, which comprises a box body and a material blocking component, the box body is arranged at an inlet of the dephosphorization machine in a surrounding manner and is arranged on a roller way at the outer side of the inlet of the dephosphorization machine, and one side of the box body is attached to the inlet of the dephosphorization machine; openings are formed in the two sides of the box body in the roller way direction; an opening is formed in the top of the box body; the material blocking assembly is arranged in the opening in the top of the box body, and the bottom of the material blocking assembly makes contact with a plate blank on the roller way. High-pressure water and ferric oxide splashed from the inlet of the dephosphorization machine can be blocked through the material blocking assembly, and when the material blocking assembly is seriously abraded after being used for a long time, the material blocking assembly is taken out through the opening in the top of the box body to be replaced.

Description

Technical Field

[0001] The utility model belongs to the technical field of dephosphorization machines, and in particular relates to an anti-splash protection device for dephosphorization machines. Background Art

[0002] A hot-rolling dephosphorization machine is a device specifically designed to remove phosphorus scale (iron oxide scale) from the surface of steel during the hot rolling process. It primarily utilizes high-pressure water dephosphorization technology. As the steel billet passes through the descaling point, a high-pressure water jet, generated by a high-pressure pump and flowing through a high-pressure nozzle, impacts the billet surface. Through the erosion and exfoliation effects of the high-pressure water jet, as well as the thermal explosion effect, the scale on the billet surface is rapidly detached, achieving a clean steel surface.

[0003] However, the iron oxide and high-pressure water under the impact of high-pressure water at the dephosphorization machine inlet will splash out of the dephosphorization machine inlet, affecting the dephosphorization machine thermal detection signal. When the dephosphorization machine thermal detection signal is lost, the high-pressure water is interrupted, the slab is not completely dephosphorized, and the iron oxide is pressed into the slab during rough rolling, causing foreign matter to be pressed in, which has a great impact on the quality of the strip.

[0004] Chinese patent publication number CN220444660U discloses a hot rolling mill descaling protection device. The device is fixedly mounted on the frame of a dephosphorization machine and positioned at the material inlet of the dephosphorization box along the material conveying direction. The device comprises a protective shield, a material retaining bracket, and a guide plate. The end of the shield abuts the dephosphorization box. The shield has a storage space and is positioned around the material inlet. The retaining bracket is connected to the bottom of the shield and supported on the frame. The guide plate is tilted and positioned within the shield. While this device solves the problem of iron oxide splashing outward, it quickly wears out due to the frequent impact of iron oxide on the shield and guide plate during production. Repairs to the shield and guide plate require the shield to be disassembled as a whole, and the device is unable to accommodate slabs of varying thicknesses. Utility Model Content

[0005] The purpose of the utility model is to provide a dephosphorization machine anti-splash protection device, which can be easily repaired and replaced and can adapt to slabs of different thicknesses.

[0006] In order to achieve the above purpose, the technical solution adopted by the utility model is a dephosphorization machine anti-splash protection device, including a box body and a material blocking assembly.

[0007] The box is arranged around the inlet of the dephosphorization machine, and the box is arranged on the roller conveyor outside the inlet of the dephosphorization machine, with one side of the box in contact with the inlet of the dephosphorization machine; the box has openings on both sides along the roller conveyor direction;

[0008] The top of the box body is open; the material blocking assembly is arranged in the opening of the top of the box body, and the bottom of the material blocking assembly is in contact with the slab on the roller.

[0009] Preferably, the material baffle assembly includes a cover plate and a material baffle plate; the cover plate is arranged in the opening at the top of the box body, and the cover plate closes the opening at the top of the box body; the bottom of the material baffle plate is in contact with the slab on the roller, and the top of the material baffle plate is rotatably connected to the bottom of the cover plate; the width of the material baffle plate is less than or equal to the width of the opening at the top of the box body, and is the same as the internal width of the roller.

[0010] Preferably, the baffle plate is connected to the cover plate via a hinge.

[0011] Preferably, a boss is provided in the opening at the top of the box body; and the cover plate is placed on the boss.

[0012] Preferably, the box body and the top of the cover plate are both provided with a plurality of lifting ears.

[0013] The utility model discloses a dephosphorization machine anti-splash protection device, which has the following advantages compared with the prior art:

[0014] (1) The material blocking assembly can block the high-pressure water and iron oxide splashed out from the dephosphorization machine inlet. After long-term use, the material blocking assembly is severely worn and can be removed through the opening at the top of the box for replacement.

[0015] (2) The baffle plate is rotatably connected to the cover plate so that the bottom of the baffle plate can swing along the roller direction under the cover plate, so that the baffle plate can adapt to slabs of different thicknesses;

[0016] (3) Simple design, easy to use and low manufacturing cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the structure of the utility model;

[0018] Figure 2 Schematic diagram of the internal structure of the box;

[0019] Figure 3 This is a schematic diagram of the box structure after removing the blocking component. DETAILED DESCRIPTION

[0020] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0021] like Figures 1 to 3 As shown, a dephosphorization machine anti-splash protection device includes a box body 1 and a material blocking assembly.

[0022] The box body 1 is arranged around the entrance of the dephosphorization machine 3, and the box body 1 is arranged on the roller table 4 outside the entrance of the dephosphorization machine 3, and one side of the box body 1 is in contact with the entrance of the dephosphorization machine 3, wherein the box body 1 can be placed on the roller table 4 or connected to the roller table 4; the box body 1 is opened on both sides along the direction of the roller table 4, so as not to affect the normal operation of the dephosphorization machine 3 and the roller table 4, thereby not affecting the slab on the roller table 4 from entering the dephosphorization machine 3;

[0023] The top of the box body 1 is open; the material blocking assembly is arranged in the opening 11 at the top of the box body 1, and the bottom of the material blocking assembly is in contact with the slab on the roller 4. The high-pressure water and iron oxide splashed out from the inlet of the dephosphorization machine 3 are blocked by the material blocking assembly. After long-term use, the material blocking assembly is severely worn, and the material blocking assembly is taken out through the opening 11 at the top of the box body 1 for replacement.

[0024] The baffle assembly includes a cover plate 21 and a baffle plate 22; the cover plate 21 is horizontally arranged in the opening 11 at the top of the box body 1, and the cover plate 21 closes the top opening 11 of the box body 1 to prevent high-pressure water and iron oxide from flying out; the bottom of the baffle plate 22 is in contact with the slab on the roller 4, and the top of the baffle plate 22 is rotatably connected to the bottom of the cover plate 21, so that the bottom of the baffle plate 22 can swing along the direction of the roller 4 under the cover plate 21, so that the baffle plate 22 can adapt to slabs of different thicknesses, wherein the baffle plate 22 can be connected to the cover plate 21 by a hinge, or the baffle plate 22 can be hung under the cover plate 21 by two chains; the width of the baffle plate 22 is smaller than the width of the top opening 11 of the box body 1, and is the same as the internal width of the roller 4.

[0025] In this embodiment, a boss 111 is provided in the opening 11 at the top of the box body 1; the cover plate 21 is placed on the boss 111, and the boss 111 is used to conveniently support the cover plate 21 and to conveniently close the top opening 11 of the box body 1. Since the cover plate 21 and the baffle plate 22 are heavy, the high-pressure water and iron oxide cannot lift the cover plate 21 and splash out.

[0026] In this embodiment, the top of the box body 1 and the cover plate 21 are provided with multiple lifting ears 12 to facilitate lifting the box body 1 or the cover plate 21. When the box body 1 or the cover plate 21 is severely worn, the box body 1 or the cover plate 21 can be lifted by an overhead crane or manually for replacement.

[0027] The working principle of the utility model is as follows: when the slab moves to the roller 4 outside the entrance of the dephosphorization machine 3, the slab enters the box body 1, and the slab contacts the baffle plate 22, causing the bottom of the baffle plate 22 to deflect, and then the slab enters the dephosphorization machine 3, and the high-pressure water in the dephosphorization machine 3 is sprayed on the slab. The baffle plate 22 blocks the high-pressure water and iron oxide, and the iron oxide will not splash to the outside of the box body 1, and the thermal detection temperature is accurate.

Claims

1. A dephosphorization machine anti-splash protection device, characterized in that: It includes a box body (1) and a material blocking assembly, The box (1) is arranged around the inlet of the dephosphorization machine (3), and the box (1) is arranged on the roller conveyor (4) outside the inlet of the dephosphorization machine (3), and one side of the box (1) is in contact with the inlet of the dephosphorization machine (3); the box (1) is opened on both sides along the roller conveyor (4); The box body (1) has an opening (11) at the top; the material blocking assembly is arranged in the opening (11) at the top of the box body (1), and the bottom of the material blocking assembly is in contact with the slab on the roller (4).

2. The anti-splash protection device for dephosphorization machine according to claim 1, characterized in that: The material blocking assembly comprises a cover plate (21) and a material blocking plate (22); the cover plate (21) is arranged in the opening (11) at the top of the box body (1), and the cover plate (21) closes the opening (11) at the top of the box body (1); the bottom of the material blocking plate (22) contacts the slab on the roller (4), and the top of the material blocking plate (22) is rotatably connected to the bottom of the cover plate (21); the width of the material blocking plate (22) is less than or equal to the width of the opening (11) at the top of the box body (1), and is the same as the internal width of the roller (4).

3. The anti-splash protection device for dephosphorization machine according to claim 2, characterized in that: The material blocking plate (22) is connected to the cover plate (21) via a hinge.

4. The anti-splash protection device for dephosphorization machine according to claim 2, characterized in that: A boss (111) is provided in the opening (11) at the top of the box body (1); and the cover plate (21) is placed on the boss (111).

5. The anti-splash protection device for dephosphorization machine according to claim 2, characterized in that: The box body (1) and the cover plate (21) are both provided with a plurality of lifting ears (12) on the top.

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