An adjustable water-cooled furnace cover cleaning and stabilization protection device

Abstract

This invention provides an adjustable water-cooled furnace cover cleaning and stabilization protection device. It consists of four adjustable legs supported by a rectangular frame. The top of each leg is hinged to a strip-shaped support member, and multi-angle adjustment is achieved via a chain-linked pulley. An end-mounted metal elastic buffer mechanism (304 stainless steel arc-shaped plate) provides flexible compensation when the furnace cover tilts, while the pulley offset setting maintains a safe distance of ≥20mm from the metal flexible hose. During cleaning operations, the device dynamically adjusts the support angle to maintain the furnace cover's level, preventing rigid collisions and hose damage. This device is suitable for cleaning water-cooled furnace covers in steelmaking refining furnaces, significantly reducing maintenance frequency and improving cleaning efficiency.

Description

Technical Field

[0001] This utility model relates to the field of equipment maintenance technology for refining furnaces in steelmaking plants of iron and steel metallurgical enterprises. More specifically, it relates to a mechanical device for stable support and protection during the cleaning process of the water-cooled furnace cover of a refining furnace. Background Technology

[0002] During the refining process in steel mills, water-cooled furnace covers are prone to localized deformation due to molten steel splashing or slag adhesion, leading to level imbalance. In existing technologies, when cleaning slag-adhered furnace covers using a furnace dismantling machine (using an engineering vehicle equipped with a hydraulic breaker), the 360° free swing of the furnace cover often causes the following problems:

[0003] The shaking of the furnace lid causes the metal hoses to break under tension, with an average of about 12 hoses being damaged per year.

[0004] Collisions between the furnace lid and cleaning tools can cause damage to the refractory surface, reducing its service life.

[0005] Traditional methods use temporary welded brackets, which require frequent disassembly and welding operations, increasing the time required for each cleaning. Summary of the Invention

[0006] This invention aims to solve the following problems: wear and damage to the hose and refractory material caused by free swinging during furnace cover cleaning; complex operation of traditional supports, inability to quickly adjust the support angle to match the furnace cover posture; lack of dedicated protective structure; and easy degradation of steel smelting quality. The invention provides an adjustable water-cooled furnace cover cleaning stabilization and protection device.

[0007] The technical means adopted in this utility model are as follows:

[0008] An adjustable water-cooled furnace cover cleaning and stabilization protection device includes:

[0009] The rectangular frame, consisting of four legs and connecting plates, covers the planar swing area below the water-cooled furnace cover.

[0010] Four strip-shaped support members are respectively hinged to the top of the support leg by pins. One end of each strip-shaped support member is provided with a metal elastic buffer mechanism, and the top surface of the other end is fixedly connected to the front end of the chain by a buckle.

[0011] The chain extends vertically downwards after passing over the pulley on the side of the support leg. By pulling the chain, the strip support is driven to rotate around the pin, thereby changing the pitch angle of the strip support and the contact position between the buffer mechanism and the water-cooled furnace cover.

[0012] Furthermore, the metal elastic buffer mechanism consists of two inclined metal pieces or arc-shaped metal pieces fixed to the ends of the strip-shaped support member, and the elastic deformation of the strip-shaped support member is controlled by the inclination angle α between the two inclined metal pieces or arc-shaped metal pieces.

[0013] Furthermore, the metal sheet of the metal elastic buffer mechanism is made of 304 stainless steel, and the surface is formed with longitudinal anti-slip texture by laser etching process. The thickness of the metal sheet is 2.0mm±0.2mm. This design reduces contact friction with the water-cooled furnace cover and enhances structural strength.

[0014] Furthermore, the pulley is installed on the side of the support leg symmetrical to the water inlet / outlet metal hose of the water-cooled furnace cover, so that the chain path avoids the installation area of ​​the metal hose and forms a guiding constraint with the non-hose side of the support leg.

[0015] Furthermore, the connection between the buffer mechanism and the strip support is a snap-fit ​​structure, and the buffer mechanism can be disassembled and assembled without tools by rotating the snap-fit ​​21. The disassembly and assembly error is controlled within ±1mm to adapt to water-cooled furnace covers of different diameters.

[0016] The present invention, employing the above technical solution, uses a rectangular frame as its base. Its legs are connected to rotatable strip-shaped support members via hinged pins, forming a multi-angle adjustable structure. The stainless steel arc-shaped buffer mechanism at the end of the strip-shaped support member changes the pitch angle by stretching a chain around pulleys on the side of the legs, dynamically matching the furnace cover's tilt state and reducing concentrated wear at contact points. Simultaneously, the pulley installation path avoids the metal hose area with a spacing ≥20mm to prevent mechanical damage to the inlet / outlet water system during chain operation. Locking buckle 111 is used to fix the chain length, ensuring precise positioning of the support angle.

[0017] The adjustable water-cooled furnace cover cleaning and stabilization protection device provided by this utility model achieves multi-angle adjustment through the hinged cooperation of a rectangular frame and four sets of adjustable support legs, and the coordinated action of strip support members through chain-linked pulleys. This enables the furnace cover to be dynamically maintained in a horizontal state during cleaning, avoiding large swings, effectively preventing metal hose breakage and refractory material damage, and reducing maintenance frequency. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or 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 some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the structure of this utility model during use.

[0020] Figure 2 This is a schematic diagram of the assembly position of the strip-shaped support component of this utility model.

[0021] Figure 3 This is a top view of the water-cooled furnace cover when it has not shifted and the strip support is not working during the use of this utility model (pulley part omitted).

[0022] Figure 4 This is a top view of the water-cooled furnace cover during use of this utility model without displacement and of the strip support component in operation (pulley part omitted).

[0023] Figure 5 This is a top view of the water-cooled furnace cover when it shifts during the use of this utility model (pulley part omitted).

[0024] In the picture:

[0025] 1. Rectangular frame; 11. Support legs; 12. Connecting plate; 111. Locking buckle;

[0026] 2. Strip support; 3. Pin; 4. Chain; 5. Pulley; 6. Water-cooled furnace cover. Detailed Implementation

[0027] 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.

[0028] 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.

[0029] 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.

[0030] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of this invention. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following figures denote similar items; therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0031] In the description of this utility model, it should be understood that the orientation or positional relationship indicated by directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" is usually based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this utility model and simplifying the description. Unless otherwise stated, these directional terms 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, and therefore should not be construed as a limitation on the scope of protection of this utility model. The directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0032] For ease of description, spatial relative terms such as "above," "over," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation besides the orientation of the device as described in the figures. For example, if the device in the figures is inverted, a device described as "above" or "above" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0033] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be construed as limiting the scope of protection of this utility model.

[0034] like Figures 1-5 As shown, an adjustable water-cooled furnace cover cleaning and stabilization protection device includes:

[0035] The rectangular frame 1, consisting of four legs 11 and a connecting plate 12, covers the planar swing area below the water-cooled furnace cover.

[0036] Four strip-shaped support members 2 are respectively hinged to the top of the support leg 11 via pins 3. One end of the strip-shaped support member 2 is provided with a metal elastic buffer mechanism, and the top surface of the other end is fixedly connected to the front end of the chain 4 via a buckle.

[0037] The chain 4 extends vertically downwards after passing over the pulley 5 on the side of the support leg 11. By pulling the chain 4, the strip support 2 is driven to rotate around the pin 3, thereby changing the pitch angle of the strip support 2 and the contact position between the buffer mechanism and the water-cooled furnace cover.

[0038] Furthermore, the metal elastic buffer mechanism consists of two inclined metal pieces or arc-shaped metal pieces fixed to the ends of the strip-shaped support member 2, and the elastic deformation of the strip-shaped support member 2 is controlled by the inclination angle α between the two inclined metal pieces or arc-shaped metal pieces.

[0039] Furthermore, the metal sheet of the metal elastic buffer mechanism is made of 304 stainless steel, and the surface is formed with longitudinal anti-slip texture by laser etching process. The thickness of the metal sheet is 2.0mm±0.2mm. This design reduces contact friction with the water-cooled furnace cover and enhances structural strength.

[0040] Furthermore, the pulley 5 is provided on the side of the support leg 11 symmetrical to the water inlet / outlet metal hose of the water-cooled furnace cover, so that the path of the chain 4 avoids the installation area of ​​the metal hose and forms a guiding constraint with the non-hose side of the support leg 11.

[0041] Furthermore, the connection between the metal elastic buffer mechanism and the strip support 2 is a snap-fit ​​structure. The buffer mechanism can be disassembled and assembled without tools by rotating the snap-fit ​​21. The disassembly and assembly error is controlled within ±1mm to adapt to water-cooled furnace covers of different diameters.

[0042] In practical use, the rectangular frame 1 is installed below the water-cooled furnace cover 6. Then, the strip support 2 is hinged to the upper inner side of the support leg 11 through the shaft 3, and the upper end is connected to the chain 4. The chain 4 is guided to pass through the pulley 5. The height of the support leg 11 (i.e., the effective height of the strip support 2) is adjusted according to the hoisting height of the water-cooled furnace cover 6. Then, the strip support 2 is gradually lowered so that the metal elastic buffer mechanism of the strip support 2 contacts the outer wall of the water-cooled furnace cover 6. Then, the current length of the chain 4 is locked by the buckle 111.

[0043] This device is a buffer limit device, not a precise locking limit device. When the water-cooled furnace cover 6 shakes too much, the strip support 2 will be forced to fold upward.

[0044] The adjustable water-cooled furnace cover cleaning and stabilization protection device provided by this utility model achieves multi-angle adjustment through the hinged cooperation of the rectangular frame 1 and four sets of adjustable support legs 11, and the linkage of the strip support 2 with the pulley 5 via the chain 4. This realizes the dynamic maintenance of the furnace cover's horizontal state during the cleaning process, avoids large swings, effectively prevents the metal hose from breaking and the refractory material from being damaged, and reduces the maintenance frequency.

[0045] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. An adjustable water-cooled furnace cover cleaning and stabilization protection device, characterized in that, include: The rectangular frame (1) is fixed by four legs (11) and connecting plate (12) and covers the planar swing area below the water-cooled furnace cover; Four strip-shaped support members (2) are respectively hinged to the top of the support leg (11) by pins (3). One end of the strip-shaped support member (2) is provided with a metal elastic buffer mechanism, and the top surface of the other end is fixedly connected to the front end of the chain (4) by a buckle. The chain (4) extends vertically downward after passing over the pulley (5) on the side of the support leg (11). By pulling the chain (4), the strip support (2) is driven to rotate around the pin (3) to change the pitch angle of the strip support (2) and the contact position between the buffer mechanism and the water-cooled furnace cover.

2. The adjustable water-cooled furnace cover cleaning and stabilization protection device according to claim 1, characterized in that, The metal elastic buffer mechanism consists of two inclined metal pieces or arc-shaped metal pieces fixed to the ends of the strip support (2). The elastic deformation of the strip support (2) is controlled by the inclination angle (α) between the two inclined metal pieces or arc-shaped metal pieces.

3. The adjustable water-cooled furnace cover cleaning and stabilization protection device according to claim 1, characterized in that, The metal sheet of the metal elastic buffer mechanism is made of 304 stainless steel, and the surface is formed with longitudinal anti-slip texture by laser etching process. The thickness of the metal sheet is 2.0mm±0.2mm. This design reduces contact friction with the water-cooled furnace cover and enhances structural strength.

4. The adjustable water-cooled furnace cover cleaning and stabilization protection device according to claim 1, characterized in that, The pulley (5) is provided on the side of the support leg (11) symmetrical to the water inlet / outlet metal hose of the water-cooled furnace cover, so that the path of the chain (4) avoids the installation area of ​​the metal hose and forms a guiding constraint with the non-hose side of the support leg (11).

5. An adjustable water-cooled furnace cover cleaning and stabilization protection device according to any one of claims 1 to 4, characterized in that, The connection between the buffer mechanism and the strip support (2) is a snap-fit ​​structure. The buffer mechanism can be disassembled and assembled without tools by rotating the snap-fit ​​(21). The disassembly and assembly error is controlled within ±1mm to adapt to water-cooled furnace covers of different diameters.

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