A new type of feed pipe protection device

Abstract

This utility model provides a novel feed pipe protection device, relating to the field of mechanical equipment. It includes: a fixed metal frame welded to the leakage location or frequently impacted part of the feed pipe; the fixed metal frame has trapezoidal structures on both sides, with its thickness gradually decreasing from top to bottom, forming an inclined surface that facilitates material sliding; and an openable and closable metal valve hinged to one side of the fixed metal frame, with a manganese steel wear-resistant plate fixedly installed on the inner side of the metal valve. This novel feed pipe protection device effectively mitigates the risk of leakage, solves a series of problems such as frequent impacts of sharp materials on the hard inner wall, is simple to prefabricate offline, reduces maintenance costs, effectively reduces the failure rate, and meets process requirements.

Description

Technical Field

[0001] This utility model relates to the field of mechanical equipment, and in particular to a novel protective device for a feed pipe. Background Technology

[0002] In the steel production sector, an efficient and stable production process is of paramount importance. The capacity replacement project of the new No. 1 area of ​​the Beiying Steel Plant of Benxi Steel Group carries a critical production task. The project, which was completed in June 2023, is equipped with two 100-ton converters as core production equipment. However, the supporting auxiliary facilities, such as the feed pipe system, which are closely connected to them, have become a "weak link" in the production line.

[0003] Since its commissioning, the feed pipe wall has been subjected to continuous and intense scouring and friction from materials, leading to increasingly severe wear and tear. Frequent material leakage not only results in significant raw material waste but also creates a chaotic accumulation of materials in the surrounding work area, making cleanup extremely difficult. Furthermore, this directly disrupts the originally meticulously planned production schedule, hindering the connection between various stages and significantly reducing production efficiency. Even emergency repairs using welding methods fail to achieve ideal results due to varying degrees of pipe wall damage and complex operating conditions. The lengthy downtime required for each repair further exacerbates the company's production pressure, creating an urgent need for new protective devices.

[0004] A protective device for a feed pipe is now invented, which can effectively prevent serious impact on the inner wall of the pipe during the material filling process. Utility Model Content

[0005] This utility model provides a novel protective device for a feed pipe, which can effectively prevent serious impact on the inner wall of the pipe during the material filling process.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0007] A novel feed pipe protection device includes:

[0008] A fixed metal frame is welded to the material leakage position or the part of the feed pipe that is frequently impacted. The fixed metal frame has trapezoidal structures on both sides and the thickness gradually decreases from top to bottom, forming an inclined surface that facilitates the sliding of materials.

[0009] An openable and closable metal door is hinged to one side of the fixed metal frame, and a manganese steel wear-resistant plate is fixedly installed on the inner side of the metal door.

[0010] Furthermore, the cross-sectional shape of the fixed metal frame is square, matching the opening of the feed pipe.

[0011] Furthermore, the metal door is locked by a pin in the closed state. The pin is equipped with a quick-release structure, including a spring clip and a positioning groove, which is used to realize the quick opening and closing of the door and the periodic replacement of the wear-resistant plate.

[0012] Furthermore, the manganese steel wear-resistant plate is detachably installed on the inside of the metal valve by bolts, and its surface is provided with concave and convex textures to enhance wear resistance and guide material accumulation to form an elastic protective layer.

[0013] Furthermore, a buffer gap is provided between the trapezoidal side of the fixed metal frame and the outer wall of the feed pipe, and the buffer gap is filled with an elastic material layer to absorb the impact energy of the material.

[0014] Furthermore, the outer surface of the metal valve is covered with a high-temperature resistant coating, the thickness of which is 0.5-1.2 mm.

[0015] The beneficial effects of this utility model are as follows:

[0016] This new type of material feeding protection device can effectively mitigate the risk of material leakage, solve a series of problems such as frequent impacts of sharp materials on hard inner walls, and is simple to prefabricate offline, reducing maintenance costs, effectively reducing failure rates, and meeting process requirements. Attached Figure Description

[0017] To more clearly illustrate the embodiments of this utility model or the technical solutions of the prior art, the drawings used in the description of the embodiments or the prior art 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.

[0018] Figure 1 This diagram illustrates the locations of frequent impacts on materials using existing technologies.

[0019] Figure 2 This is a schematic diagram of the device of this utility model.

[0020] Explanation of icon numbers:

[0021] 1. Fixed metal frame; 2. Metal valve; 3. Pin; 4. Manganese steel wear-resistant plate; 5. Hinges. Detailed Implementation

[0022] It should be noted that, where there is no conflict, the embodiments and features in the embodiments of this utility model can be combined with each other. The present utility model will now be described in detail with reference to the accompanying drawings and embodiments.

[0023] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit this utility model or its application or use. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0024] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to the present invention. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0025] This utility model provides a technical solution: a novel feed pipe protection device, such as... Figure 2 As shown, it includes: a fixed metal frame 1, welded to the leakage position or frequently impacted part of the feed pipe, the cross-sectional shape of the fixed metal frame 1 is a square that matches the opening of the feed pipe; the two sides of the fixed metal frame 1 are trapezoidal structures, and the thickness gradually decreases from top to bottom, forming an inclined surface that facilitates the material to slide down, so that the material can slide down to the bottom of the pipe, avoid the accumulation of large materials, and reduce the load.

[0026] The openable and closable metal door 2 is hinged to one side of the fixed metal frame 1 via a hinge 5. A manganese steel wear-resistant plate 4 is fixedly installed on the inside of the metal door 2. When closed, the metal door 2 is locked by a pin 3. The pin 3 is equipped with a quick-release structure, including a spring clip and a positioning groove, which is used to realize the quick opening and closing of the door and the periodic replacement of the wear-resistant plate 4, reduce the need for frequent plate patching and welding, avoid dangerous hot work operations, and after the modification, it can not only effectively prevent the problem of frequent material leakage caused by material impact, but also reduce the risk of dangerous operations and improve production efficiency.

[0027] The manganese steel wear-resistant plate 4 is detachably installed on the inside of the metal valve 2 by bolts, and its surface is provided with concave and convex textures to enhance wear resistance and guide material accumulation to form an elastic protective layer.

[0028] A buffer gap is provided between the trapezoidal side of the fixed metal frame 1 and the outer wall of the feed pipe. The buffer gap is filled with an elastic material layer to absorb the impact energy of the material.

[0029] The outer surface of the metal valve 2 is covered with a high-temperature resistant coating with a thickness of 0.5-1.2 mm.

[0030] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A novel feed pipe protection device, characterized in that, include: A fixed metal frame (1) is welded to the material leakage position or the part that is frequently impacted by the material discharge pipe. The fixed metal frame (1) has trapezoidal structure on both sides and the thickness gradually decreases from top to bottom, forming an inclined surface that facilitates the material to slide down. A metal door (2) that can be opened and closed is hinged to one side of the fixed metal frame (1) by a hinge (5), and a manganese steel wear-resistant plate (4) is fixedly installed on the inside of the metal door (2).

2. The novel feed pipe protection device according to claim 1, characterized in that, The cross-sectional shape of the fixed metal frame (1) is square, which matches the opening of the feed pipe.

3. The novel feed pipe protection device according to claim 1, characterized in that, The metal door (2) is locked in the closed state by a pin (3). The pin (3) is equipped with a quick-release structure, including a spring clip and a positioning groove, which is used to realize the quick opening and closing of the door and the periodic replacement of the wear plate (4).

4. The novel feed pipe protection device according to claim 3, characterized in that, The manganese steel wear-resistant plate (4) is detachably installed on the inside of the metal valve (2) by bolts, and its surface is provided with concave and convex textures to enhance wear resistance and guide material accumulation to form an elastic protective layer.

5. The novel feed pipe protection device according to claim 1, characterized in that, A buffer gap is provided between the trapezoidal side of the fixed metal frame (1) and the outer wall of the feed pipe. The buffer gap is filled with an elastic material layer to absorb the impact energy of the material.

6. The novel feed pipe protection device according to claim 1, characterized in that, The outer surface of the metal valve (2) is covered with a high-temperature resistant coating, the thickness of which is 0.5-1.2 mm.

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