Slag-stopping gate valve device for sliding gate nozzle of converter tapping hole

Abstract

The utility model discloses a slag-stopping gate valve device for a sliding gate nozzle of a steel tapping hole of a converter, and relates to the technical field of converters. The device comprises an upper plate, a lower plate, a core plate, a flashboard and an oil cylinder, the top of the upper plate and the bottom of the lower plate are provided with a feeding pipe and a discharging pipe respectively, the feeding pipe and the discharging pipe are concentrically arranged, the core plate is fixed between the upper plate and the lower plate, the core plate is provided with an end groove which is concentric with the feeding pipe and is of a semicircular structure, and the flashboard is arranged in the end groove. A strip-shaped groove communicated with the end groove is formed in one side face of the core plate. The novel core plate and the flashboard are matched, the flashboard slides in the core plate to achieve opening and closing, meanwhile, the abrasion-resistant plate is arranged on the flashboard, the abrasion-resistant plate makes contact with the upper plate piece, the lower plate piece and the core plate in a friction mode, the flashboard can be protected, the problem of poor sealing performance caused by abrasion is avoided, the end grooves are attached to the contact faces of the material blocking parts, and the sealing performance is improved. The problem of molten steel retention is avoided, and the use effect is improved.

Description

Technical Field

[0001] This utility model belongs to the field of converter technology, and in particular relates to a slag-blocking gate valve device for the sliding water outlet of a converter taphole. Background Technology

[0002] In converter steelmaking, molten steel from the bottom of the furnace needs to be discharged through the taphole. A slag-blocking gate valve device is required at the taphole for control. For example, patent CN202139256U discloses a slag-blocking gate valve mechanism for a converter taphole, which includes a fixed frame, a switching frame, a sliding frame, a fixed sliding plate brick with a central opening, a sliding sliding plate brick, an outer nozzle brick, an outer nozzle fixing frame, and an outer nozzle mounting frame. Although this device uses two perforated sliding plates to slide and offset, opening and closing the taphole to achieve slag-blocking and steel discharge, the slag-blocking gate valve device... Located at the bottom of the furnace, the sliding slide block is subjected to significant pressure from molten steel during operation. This pressure can easily cause deformation of the sliding slide block over time, creating gaps between it and the inner wall of the slag-blocking valve mechanism. This reduces the sealing performance of the sliding slide block. Furthermore, prolonged sliding can lead to wear on the bottom and top surfaces of the sliding slide block, resulting in gaps between the sliding slide block and the inner cavity of the slag-blocking valve mechanism. Molten steel can then enter the cavity of the slag-blocking valve mechanism through these gaps and flow out from the outlet, making it impossible to completely close the tapping port. Summary of the Invention

[0003] The purpose of this utility model is to provide a slag-blocking gate valve device for a converter tapping outlet sliding nozzle. Through the cooperation of a novel core plate and a gate plate, the gate plate slides within the core plate to achieve opening and closing. At the same time, wear-resistant plates are arranged on the gate plate. Through the contact and friction between the wear-resistant plates and the upper plate, lower plate and core plate, the gate plate can be protected, avoiding wear and tear that could lead to poor sealing. By having the end groove and the material blocking part in contact, the molten steel can be prevented from stagnating, thus improving the performance.

[0004] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0005] This utility model is a slag-blocking gate valve device for a converter tapping outlet sliding water nozzle, comprising an upper plate, a lower plate, a core plate, a gate plate, and a hydraulic cylinder;

[0006] The upper plate is provided with a feed pipe at the top and the lower plate is provided with a discharge pipe at the bottom, and the feed pipe and discharge pipe are arranged concentrically.

[0007] The core plate is fixed between the upper plate and the lower plate. The core plate is provided with a semi-circular end groove concentric with the feed pipe. One side of the core plate is provided with a strip groove communicating with the end groove. An inner cavity is formed between the upper plate, the lower plate, the end groove and the strip groove.

[0008] The gate includes a square plate, one side of which is integrally connected to a semi-circular material blocking part, and the gate is slidably disposed in the inner cavity;

[0009] The upper plate, lower plate, and core plate are fixed with an end seat on one side near the strip groove. The hydraulic cylinder is fixed on the outside of the end seat, and the end of the extension rod of the hydraulic cylinder passes through the end seat and is fixed to the gate.

[0010] Wear-resistant plates are fixed to the upper and lower surfaces of the gate plate by fasteners. The outer edge of the wear-resistant plate extends beyond the outer edge of the gate plate. The two sides of the wear-resistant plate are attached to the inner sides of the strip groove. A gap is formed between the two sides of the gate plate and the inner wall of the strip groove.

[0011] Furthermore, the upper and lower plates are provided with inspection ports in areas away from the feed pipe and discharge pipe. The specifications of the inspection ports are larger than those of the wear-resistant plates, and an inspection door is provided on the outside of the inspection ports.

[0012] Furthermore, the inner diameter of the feed pipe is the same as the inner diameter of the end groove, and the inner diameter of the discharge pipe is smaller than the inner diameter of the end groove.

[0013] Furthermore, the upper plate, lower plate, and core plate are provided with mounting holes at their four corners, and the upper plate, lower plate, and core plate are connected to each other through fasteners and mounting holes.

[0014] Furthermore, the upper and lower parts of the inner sides of both ends of the end seat are provided with lugs, and the lugs are connected to the upper plate and the lower plate through fasteners of the mounting port.

[0015] Furthermore, the cylinder shell of the hydraulic cylinder is provided with a jacket, and the jacket is provided with circulating cooling water.

[0016] This utility model has the following beneficial effects:

[0017] 1. This utility model achieves opening and closing by the cooperation of a novel core plate and a gate plate, with the gate plate sliding within the core plate. At the same time, wear-resistant plates are arranged on the gate plate. Through the contact and friction between the wear-resistant plates and the upper plate, lower plate and core plate, the gate plate can be protected, avoiding the problem of poor sealing caused by wear. By having the end groove and the material blocking part in contact, the problem of molten steel retention is avoided, thus improving the performance.

[0018] 2. The inner diameter of the discharge port designed in this utility model is smaller than the outer diameter of the blocking part. After it is in place, it can provide support, thereby improving the compressive strength of the gate and avoiding the problem of poor gate stability caused by molten steel pressure.

[0019] 3. The present invention facilitates the installation, removal, replacement and maintenance of wear-resistant plates by setting up inspection ports and inspection doors, thereby further improving the service life of the material blocking device.

[0020] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0021] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the slag-blocking gate valve device for a converter tapping outlet according to the present invention.

[0023] Figure 2 This is a cross-sectional view of the structure of this utility model;

[0024] Figure 3 This is a structural diagram of the core plate, hydraulic cylinder, and gate plate;

[0025] Figure 4 This is a schematic diagram of the structure of the hydraulic cylinder and the gate.

[0026] The attached diagram lists the components represented by each number as follows:

[0027] 1-Upper plate, 2-Lower plate, 3-Core plate, 4-Gate, 5-Hydraulic cylinder, 6-End seat, 7-Inspection door, 101-Feed pipe, 102-Inspection port, 103-Installation port, 201-Discharge pipe, 301-End groove, 302-Strip groove, 401-Square plate, 402-Blocking part, 403-Wear-resistant plate, 601-Support lug. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0029] Please see Figure 1-4 As shown, this utility model is a slag-blocking gate valve device for a converter tapping outlet sliding water nozzle, including an upper plate 1, a lower plate 2, a core plate 3, a gate plate 4, and a hydraulic cylinder 5.

[0030] The top of the upper plate 1 and the bottom of the lower plate 2 are respectively provided with a feed pipe 101 and a discharge pipe 201, and the feed pipe 101 and the discharge pipe 201 are arranged concentrically.

[0031] The core plate 3 is fixed between the upper plate 1 and the lower plate 2. The core plate 3 is provided with a semi-circular end groove 301 concentric with the feed pipe 101. One side of the core plate 3 is provided with a strip groove 302 communicating with the end groove 301. An inner cavity is formed between the upper plate 1, the lower plate 2, the end groove 301 and the strip groove 302.

[0032] The gate 4 includes a square plate 401, and a semi-circular blocking part 402 is integrally connected to one side of the square plate 401. The gate 4 is slidably disposed in the inner cavity.

[0033] An end seat 6 is fixed on one side of the upper plate 1, lower plate 2 and core plate 3 near one end of the strip groove 302. The hydraulic cylinder 5 is fixed on the outside of the end seat 6. The end of the telescopic rod of the hydraulic cylinder 5 passes through the end seat 6 and is fixed to the gate plate 4.

[0034] Wear-resistant plates 403 are fixed to the upper and lower surfaces of the gate plate 4 by fasteners. The outer edge of the wear-resistant plates 403 extends beyond the outer edge of the gate plate 4. The two sides of the wear-resistant plates 403 are attached to the inner sides of the strip groove 302, and a gap is formed between the two sides of the gate plate 4 and the inner wall of the strip groove 302.

[0035] Among them, such as Figure 1-2 As shown, the upper plate 1 and the lower plate 2 are provided with inspection ports 102 in the areas away from the feed pipe 101 and the discharge pipe 201. The size of the inspection port 102 is larger than that of the wear-resistant plate 403. The inspection port 102 is provided with an inspection door 7 on the outside.

[0036] Among them, such as Figure 2 As shown, the inner diameter of the feed pipe 101 is the same as the inner diameter of the end groove 301, and the inner diameter of the discharge pipe 201 is smaller than the inner diameter of the end groove 301.

[0037] Among them, such as Figure 1-3 As shown, mounting holes 103 are provided at the four corners of the upper plate 1, lower plate 2 and core plate 3. The upper plate 1, lower plate 2 and core plate 3 are connected to each other through fasteners and mounting holes 103.

[0038] Among them, such as Figure 1-4 As shown, the upper and lower parts of the inner sides of both ends of the end seat 6 are provided with support ears 601, and the support ears 601 are connected to the upper plate 1 and the lower plate 2 through the fasteners of the mounting port 103.

[0039] The cylinder shell of the hydraulic cylinder 5 is equipped with a jacket, and the jacket contains circulating cooling water.

[0040] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0041] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A slag-blocking gate valve device for a converter tapping spout, characterized in that: It includes an upper plate (1), a lower plate (2), a core plate (3), a gate (4), and a hydraulic cylinder (5); The upper plate (1) is provided with a feed pipe (101) at the top and the lower plate (2) is provided with a discharge pipe (201) at the bottom. The feed pipe (101) and the discharge pipe (201) are arranged concentrically. The core plate (3) is fixed between the upper plate (1) and the lower plate (2). The core plate (3) is provided with a semi-circular end groove (301) concentric with the feed pipe (101). One side of the core plate (3) is provided with a strip groove (302) communicating with the end groove (301). An inner cavity is formed between the upper plate (1), the lower plate (2), the end groove (301) and the strip groove (302). The gate (4) includes a square plate (401), and a semi-circular blocking part (402) is integrally connected to one side of the square plate (401). The gate (4) is slidably disposed in the inner cavity. The upper plate (1), lower plate (2) and core plate (3) are fixed with an end seat (6) on one side near the end of the strip groove (302). The oil cylinder (5) is fixed on the outside of the end seat (6). The end of the telescopic rod of the oil cylinder (5) passes through the end seat (6) and is fixed with the gate plate (4). The upper and lower surfaces of the gate (4) are both fixed with wear-resistant plates (403) by fasteners. The outer edge of the wear-resistant plate (403) extends beyond the outer edge of the gate (4). The two sides of the wear-resistant plate (403) are attached to the inner sides of the strip groove (302). A gap is formed between the two sides of the gate (4) and the inner wall of the strip groove (302).

2. The slag-blocking gate valve device for a converter tapping spout according to claim 1, characterized in that, The upper plate (1) and the lower plate (2) are provided with inspection ports (102) in areas away from the feed pipe (101) and the discharge pipe (201). The specifications of the inspection ports (102) are larger than those of the wear-resistant plate (403). The inspection ports (102) are provided with inspection doors (7) on the outside.

3. The slag-blocking gate valve device for a converter taphole sliding water outlet according to claim 1, characterized in that, The inner diameter of the feed pipe (101) is the same as the inner diameter of the end groove (301), and the inner diameter of the discharge pipe (201) is smaller than the inner diameter of the end groove (301).

4. The slag-blocking gate valve device for a converter tapping spout according to claim 1, characterized in that, The upper plate (1), lower plate (2) and core plate (3) are provided with mounting holes (103) at their four corners. The upper plate (1), lower plate (2) and core plate (3) are connected to each other by fasteners and mounting holes (103).

5. A slag-blocking gate valve device for a converter taphole sliding water inlet according to claim 4, characterized in that, The upper and lower parts of the inner sides of both ends of the end seat (6) are provided with lugs (601), and the lugs (601) are connected to the upper plate (1) and the lower plate (2) through fasteners of the mounting port (103).

6. The slag-blocking gate valve device for a converter taphole sliding water outlet according to claim 1, characterized in that, The cylinder shell of the oil cylinder (5) is provided with a jacket, and the jacket is provided with circulating cooling water.

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