A positioning device for a metallurgical hole-opening machine and a hole-opening system for an electric arc furnace.

Abstract

This utility model provides a positioning device for a metallurgical drilling machine and a drilling system for an electric arc furnace. The positioning device for the metallurgical drilling machine includes: a fixed base for mounting on the outer wall of the electric arc furnace, comprising a base body and a first fixing block mounted on the base body, wherein a positioning groove is formed on the outer surface of the fixing block; and a support frame for mounting on the drilling machine, comprising a frame body and a second fixing block mounted on the side of the frame body facing the fixed base, wherein the second fixing block is provided with a positioning protrusion that matches the positioning groove. This utility model can effectively cope with vibration and oscillation during operation and reduce drill rod offset.

Description

Technical Field

[0001] This utility model relates to the field of metallurgical eye-opening machine technology, and in particular to a positioning device for a metallurgical eye-opening machine and an eye-opening system for a submerged arc furnace. Background Technology

[0002] A tapping machine is a specialized piece of equipment used in submerged arc furnaces for ferroalloy smelting to open the slag outlet and the tapping outlet. Currently, most tapping machines used in the industrial metallurgical field rely on the equipment's own limit design for positioning.

[0003] However, in actual operation, the drilling machine is subjected to strong vibrations during furnace hole drilling, causing significant displacement of its front and rear ends as the drill rod sways. This displacement not only increases the furnace hole diameter, damaging the furnace hole bricks, but also significantly increases the consumption of materials such as drill bits, drill rods, and taphole clay. This undoubtedly represents a considerable economic burden on the entire production process.

[0004] Therefore, there is an urgent need for a positioning device for a metallurgical drilling machine and a drilling system for an electric arc furnace, which can effectively cope with vibration and oscillation during operation and reduce drill rod offset. Utility Model Content

[0005] The purpose of this invention is to provide a positioning device for a metallurgical hole-opening machine and a hole-opening system for a submerged arc furnace, aiming to solve the technical problem that traditional hole-opening machines are prone to strong vibrations during hole opening.

[0006] To achieve the above objectives, in a first aspect, this utility model provides a positioning device for a metallurgical eye-opening machine, comprising:

[0007] A fixing seat is used to be installed on the outer wall of a submerged arc furnace. It includes a seat body and a first fixing block disposed on the seat body. A positioning groove is formed on the outer surface of the fixing block.

[0008] A support frame for mounting on an eye-opening machine includes a frame body and a second fixing block disposed on the side of the frame body facing the fixing seat, wherein the second fixing block is provided with a positioning protrusion that matches the positioning groove.

[0009] As a further improvement to the above solution, the frame body includes a vertical plate, and the second fixing block is disposed on the vertical plate;

[0010] The vertical plate is positioned near the drill bit end adjacent to the housing of the eye-opening machine.

[0011] As a further improvement to the above solution, the frame body also includes a reinforcing plate, which is obliquely disposed between the vertical plate and the eyelet machine housing to support and strengthen the strength and rigidity of the vertical plate.

[0012] As a further improvement to the above solution, the positioning bump includes a columnar body and a guide inclined annular surface disposed at the end of the columnar body;

[0013] The inner contour of the positioning groove is adapted to the outer contour of the positioning protrusion, and the outer edge of the bottom of the positioning groove has a guide ring groove that matches the guide inclined annular surface.

[0014] As a further improvement to the above solution, an elastic buffer layer is provided at the bottom of the positioning groove to absorb the impact force generated by the vibration of the drill rod.

[0015] Secondly, this utility model also provides a submerged arc furnace opening system, including a submerged arc furnace and an opening machine, as well as a metallurgical opening machine positioning device as described in the first aspect.

[0016] The fixed seat in the positioning device for the metallurgical opening machine is fixedly installed on the outer wall of the electric arc furnace and located directly above its slag outlet or iron outlet.

[0017] The support frame in the positioning device of the metallurgical eye-opening machine is set on the eye-opening machine, and the positioning groove in the fixed seat and the positioning boss of the support frame are correspondingly matched.

[0018] Because this utility model adopts the above technical solutions, the beneficial effects of this application are as follows:

[0019] This utility model provides a positioning device for a metallurgical drilling machine. Through the arrangement of a first fixing block, a positioning groove, a second fixing block, and a positioning protrusion, when the drilling machine needs to drill at the furnace hole position, the second fixing block contacts the first fixing block as the drilling machine rotates to the drilling position. The positioning protrusion is precisely matched and inserted into the interior of the positioning groove, forming a double limiting constraint along the axial and radial directions of the drill rod, creating a tight fit and a stable support effect. Specifically, the contour of the positioning protrusion precisely fits the inner wall of the positioning groove. When the support frame is installed relative to the fixed seat, the positioning protrusion can be completely embedded in the positioning groove, thereby accurately positioning the support frame in space. This effectively keeps the axis of the drill rod highly coaxial with the preset axis of the drilling position in the submerged arc furnace. This ensures good force balance during the drilling machine's operation, whether it moves back and forth or sways left and right, effectively limiting its swing amplitude and ensuring the equipment always maintains precise positioning. This enables efficient and accurate drilling operations, reducing the amount of deviation during operation and fundamentally preventing disorderly expansion of the furnace hole diameter.

[0020] In some preferred embodiments, an elastic buffer layer (such as an elastic rubber pad, polyurethane damping material, etc.) is added to the bottom of the positioning groove. The elastic buffer layer can flexibly contact the lower surface of the positioning protrusion when the positioning protrusion is embedded in the positioning groove. When the drill rod vibrates at high frequency due to impact, the elastic buffer layer can undergo slight elastic deformation, absorbing and dissipating vibration energy through the viscous damping effect inside the material, avoiding impact stress concentration caused by rigid collision. At the same time, the presence of the elastic buffer layer can, to a certain extent, allow for a small gap compensation between the positioning protrusion and the positioning groove, alleviating the problem of wear on the mating surface caused by thermal expansion or long-term use, thus maintaining the long-term stability of positioning accuracy and reducing the assembly difficulty during installation. Attached Figure Description

[0021] 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 only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0022] Figure 1 This is a three-dimensional schematic diagram of a positioning device for a metallurgical eye-opening machine disclosed in this utility model;

[0023] Figure 2 This is a three-dimensional schematic diagram of the support frame disclosed in this utility model installed on the eyeletting machine;

[0024] Figure 3 This is a three-dimensional schematic diagram of the fixing seat disclosed in this utility model installed on the outer wall of the electric arc furnace;

[0025] Figure 4 This is a three-dimensional schematic diagram of an opening system for a submerged arc furnace disclosed in this utility model.

[0026] Figure label:

[0027] 1. Fixed base; 11. Base body; 12. First fixed block; 13. Positioning groove; 131. Guide ring groove; 2. Support frame; 21. Frame body; 21-1. Vertical plate; 21-2. Reinforcing plate; 22. Second fixed block; 23. Positioning protrusion; 231. Guide inclined ring surface; 01. Mineral arc furnace; 02. Hole-opening machine.

[0028] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the implementation methods and with reference to the accompanying drawings. Detailed Implementation

[0029] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0030] It should be noted that all directional indicators (such as up, down, etc.) in the embodiments of this utility model are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0031] Furthermore, in this utility model, descriptions involving "first," "second," etc., are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features.

[0032] Furthermore, the technical solutions of the various embodiments of this utility model can be combined with each other, but only if they are based on the ability of a person skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0033] Example 1

[0034] See Figures 1-4 This utility model provides a positioning device for a metallurgical eye-opening machine 02, which solves the problems of insufficient positioning accuracy and susceptibility to impact deformation in existing eye-opening machines 02 during operation in a submerged arc furnace 01. The following detailed description of the implementation of this utility model is provided in conjunction with its specific structure:

[0035] This positioning device consists of two parts: a fixed base 1 and a support frame 2. The positioning cooperation between the two parts enables the rapid and accurate positioning of the eye-opening machine 02 relative to the electric arc furnace 01.

[0036] The fixed base 1 is fixed to the outer wall of the electric arc furnace 01, and the support frame 2 is fixed to the body of the drilling machine 02. The two are aligned by the insertion and cooperation of the positioning groove 13 and the positioning protrusion 23 to ensure the alignment accuracy of the drill bit of the drilling machine 02 and the furnace hole.

[0037] The fixing base 1 is made of metal sheet welded or cast, and its structure includes a base body 11 and a first fixing block 12. The base body 11 includes a number of support plates set at the bottom of the support plate, and the end shape of the support plates matches the shape of the outer wall of the electric arc furnace 01, so that the base body 11 is fixed to the preset mounting surface of the outer wall of the electric arc furnace 01 by welding, thereby ensuring the connection strength between the fixing base 1 and the electric arc furnace 01. The first fixing block 12 is set on the upper surface (or side, depending on the installation direction of the eye-opening machine 02) of the support plate, and its outer surface (i.e. the side in contact with the support frame 2) is provided with a positioning groove 13. The positioning groove 13 is preferably a cylindrical groove or a trapezoidal groove, and the groove width is matched with the width clearance of the positioning protrusion 23 of the support frame 2, which ensures smooth insertion and avoids lateral displacement.

[0038] The support frame 2 is a follow-up positioning component of the device, fixed to the housing of the eye-opening machine 02. Its structure includes a frame body 21 and a second fixing block 22. The frame body 21 is composed of a vertical plate 21-1 and a reinforcing plate 21-2.

[0039] The vertical plate 21-1 is the main support structure of the frame body 21. It is vertically set on the shell of the drilling machine 02 near the drill bit end (i.e., the front end direction of the drill bit rotation axis). A second fixing block 22 is fixed on its outer surface (the side facing the electric arc furnace 01). A positioning protrusion 23 is integrally formed or welded on the second fixing block 22. The shape and size of the protrusion are completely matched with the positioning groove 13.

[0040] The reinforcing plate 21-2 is inclinedly disposed between the vertical plate 21-1 and the housing of the drilling machine 02. One end of the reinforcing plate 21-2 is welded to the upper middle part of the vertical plate 21-1 (or connected by bolts), and the other end is welded to the mounting surface of the housing of the drilling machine 02, forming a triangular support structure. The thickness of the reinforcing plate 21-2 is the same as that of the vertical plate 21-1, and the inclination angle is 30°~60° (preferably 45°) to maximize the use of material strength, effectively disperse the lateral impact force on the vertical plate 21-1 (such as the vibration when the drill bit of the drilling machine 02 rotates, and the stress caused by the thermal expansion of the furnace body), and prevent the vertical plate 21-1 from deforming due to long-term stress, thereby ensuring the positional accuracy of the positioning protrusion 23.

[0041] In actual operation, the fixed base 1 is first fixed to the preset position on the outer wall of the electric arc furnace 01 through the base body 11; then the support frame 2 is set on the shell of the hole-opening machine 02 through the second fixing block 22.

[0042] In practical use, through the arrangement of the first fixing block 12, the positioning groove 13, the second fixing block 22, and the positioning protrusion 23, when the drilling machine 02 needs to drill at the furnace hole position on the furnace body, as the drilling machine 02 rotates and moves to the drilling position, the second fixing block 22 contacts the first fixing block 12, and the positioning protrusion 23 is precisely matched and inserted into the interior of the positioning groove 13, forming a double limiting constraint along the axial and radial directions of the drill rod, forming a tight fit and a stable support effect; specifically, the outline of the positioning protrusion 23 precisely fits the inner wall surface of the positioning groove 13, and when the support frame 2 is relative to... When the fixed base 1 is installed, the positioning protrusion 23 can be fully embedded in the positioning groove 13, thereby accurately positioning the position of the support frame 2 in the spatial dimension, effectively keeping the axis of the drill rod and the preset axis of the opening position of the electric arc furnace 01 highly coaxial; so that during the operation of the opening machine 02, whether it moves back and forth or sways left and right, it can achieve good force balance, effectively limit its swing amplitude, thereby ensuring that the equipment always maintains accurate positioning, realizes efficient and accurate opening operation, reduces the amount of deviation during operation, and fundamentally prevents the disorderly expansion of the furnace hole diameter;

[0043] At the same time, it reduces the consumption of drill pipes and drill bits, effectively extends the service life of these key tools, and improves overall economic efficiency.

[0044] In a preferred embodiment, the positioning protrusion 23 includes a cylindrical body (preferably cylindrical or square) and a guide inclined annular surface 231 disposed at the end of the cylindrical body (i.e., the end into which the positioning groove 13 is inserted). The guide inclined annular surface 231 is an annular inclined surface that surrounds the end of the cylindrical body. Its inclination angle α is preferably 30°~60° (more preferably 45°), and the annular surface width b is 1~3mm (adjusted according to the size of the positioning protrusion 23). The function of the guide inclined annular surface 231 is to provide guidance when the positioning protrusion 23 is inserted into the positioning groove 13. The gradual reduction of the insertion resistance through the inclined surface design reduces the insertion resistance and guides the positioning protrusion 23 to automatically correct the lateral offset, ensuring that the positioning protrusion 23 and the positioning groove 13 are accurately aligned.

[0045] The inner contour of the positioning groove 13 is adapted to the outer contour of the columnar body of the positioning protrusion 23 (e.g., when the protrusion is a cylinder, the groove is a round hole; when the protrusion is a square column, the groove is a square hole); at the outer edge of the groove bottom (i.e., the position away from the groove opening), a guide ring groove 131 matching the guide inclined annular surface 231 is machined; the depth h of the guide ring groove 131 is consistent with the height of the guide inclined annular surface 231, and its inclination angle is the same as the inclination angle α of the guide inclined annular surface 231 (e.g., 45°), so that when the positioning protrusion 23 is inserted, the guide inclined annular surface 231 and the guide ring groove 131 form a "wedge-shaped guide" structure, further enhancing the self-guiding property of the positioning fit.

[0046] As a preferred embodiment, to further reduce the impact of drill rod vibration on the positioning structure during the operation of the drilling machine 02, an elastic buffer layer is added to the bottom of the positioning groove 13 (i.e., the area in contact with the bottom surface of the columnar body of the positioning protrusion 23); the elastic buffer layer is made of a high-temperature resistant and wear-resistant elastic material (such as nitrile rubber, polyurethane or silicone rubber), with a thickness of 2~5mm (preferably 3mm), and is fixed to the bottom of the groove by vulcanization or adhesive bonding; the shape of the buffer layer is adapted to the bottom of the groove (such as circular or square), and its outer edge maintains a gap of 1~2mm with the side wall of the groove to avoid the buffer layer being squeezed and failing due to thermal expansion.

[0047] When the drill rod of the drilling machine 02 rotates, the vibration of the drill rod will be transmitted to the positioning protrusion 23 through the support frame 2, and then act on the bottom of the positioning groove 13. The elastic buffer layer can absorb the vibration energy through its own compression deformation, reduce the impact force transmitted to the fixed seat 1, thereby avoiding the loosening or wear of the positioning protrusion 23 and the groove due to long-term vibration impact, and extending the service life of the device.

[0048] Example 2

[0049] See Figure 4 This utility model also provides a hole-opening system for a submerged arc furnace 01. By integrating the submerged arc furnace 01, the hole-opening machine 02, and the positioning device for the metallurgical hole-opening machine 02 as described in Example 1, it achieves high-precision and high-efficiency positioning and coordination between the hole-opening machine 02 and the submerged arc furnace 01, effectively solving the problems of furnace hole position offset and low work efficiency caused by positioning deviation in traditional hole-opening operations. The following is a detailed description of the system composition and workflow:

[0050] The fixing seat 1 of the positioning device for the metallurgical hole-opening machine 02 is fixedly installed on the outer wall of the submerged arc furnace 01 via its seat body 11, and is located directly above the slag outlet or the iron outlet (the specific location depends on the hole-opening operation target; if the main target is to open the iron outlet, it corresponds to the location directly above the iron outlet; if the main target is to open the slag outlet, it corresponds to the location directly above the slag outlet). The mounting surface of the seat body 11 is in contact with the outer wall of the submerged arc furnace 01 and is fixed by welding.

[0051] The support frame 2 is fixedly mounted on the drilling machine 02 via its frame body 21, specifically located near the drill bit end of the drilling machine 02 housing (i.e., in the direction of the front end of the drill bit rotation axis). This ensures that the second fixing block 22 (including the positioning protrusion 23) of the support frame 2 and the first fixing block 12 (including the positioning groove 13) of the fixing base 1 are in the same horizontal or vertical plane, thus ensuring the straightness of the positioning fit. The support frame 2 is connected to the drilling machine 02 housing by welding.

[0052] In actual eye-opening operations, the system's workflow is as follows:

[0053] Pre-positioning stage: Move the eye-opening machine 02 directly above the slag outlet / iron outlet of the electric arc furnace 01, and insert the positioning protrusion 23 on the support frame 2 into the positioning groove 13 on the fixed seat 1; Since the guide inclined annular surface 231 of the positioning protrusion 23 matches the guide annular groove 131 of the positioning groove 13, the positioning protrusion 23 automatically corrects the lateral offset during the insertion process until the positioning protrusion 23 is completely embedded in the positioning groove 13, and the positioning is completed;

[0054] During the opening stage: After the opening machine 02 is started, the drill bit rotates and moves into the furnace under the action of the drive mechanism. The elastic buffer layer at the bottom of the positioning groove 13 absorbs the high-frequency vibration generated during the rotation and advancement of the drill rod in real time, preventing the vibration from being transmitted to the positioning protrusion 23 and the groove, which would cause the fit to loosen. At the same time, the rigid connection between the fixed seat 1 and the electric arc furnace 01 ensures that the opening position of the furnace hole is always aligned with the slag outlet / iron outlet, ensuring the consistency of the geometric dimensions of the furnace hole (such as diameter and depth).

[0055] The above are merely preferred embodiments of this utility model and do not limit the patent scope of this utility model. Any equivalent structural transformations made based on the inventive concept of this utility model and the contents of this utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of this utility model.

Claims

1. A positioning device for a metallurgical eye-opening machine, characterized in that, include: A fixing seat is used to be installed on the outer wall of a submerged arc furnace. It includes a seat body and a first fixing block disposed on the seat body. A positioning groove is formed on the outer surface of the fixing block. A support frame for mounting on an eye-opening machine includes a frame body and a second fixing block disposed on the side of the frame body facing the fixing seat, wherein the second fixing block is provided with a positioning protrusion that matches the positioning groove.

2. The positioning device for a metallurgical eye-opening machine according to claim 1, characterized in that, The frame body includes a vertical plate, and the second fixing block is disposed on the vertical plate; The vertical plate is positioned near the drill bit end adjacent to the housing of the drilling machine.

3. The positioning device for a metallurgical eye-opening machine according to claim 2, characterized in that, The frame body also includes a reinforcing plate, which is inclinedly disposed between the vertical plate and the eyelet machine housing to support and strengthen the strength and rigidity of the vertical plate.

4. A positioning device for a metallurgical eye-opening machine according to any one of claims 1-3, characterized in that, The positioning protrusion includes a columnar body and a guide inclined annular surface disposed at the end of the columnar body; The inner contour of the positioning groove is adapted to the outer contour of the positioning protrusion, and the outer edge of the bottom of the positioning groove has a guide ring groove that matches the guide inclined annular surface.

5. A positioning device for a metallurgical eye-opening machine according to any one of claims 1-3, characterized in that, The bottom of the positioning groove is provided with an elastic buffer layer to absorb the impact force generated by the vibration of the drill rod.

6. A hole-opening system for a submerged arc furnace, characterized in that, It includes an electric arc furnace and a hole-opening machine, as well as a positioning device for a metallurgical hole-opening machine as described in any one of claims 1-5; The fixed seat in the positioning device for the metallurgical opening machine is fixedly installed on the outer wall of the submerged arc furnace and located directly above its slag outlet or iron outlet. The support frame in the positioning device of the metallurgical eye-opening machine is set on the eye-opening machine, and the positioning groove in the fixed seat and the positioning boss of the support frame are correspondingly matched.

Images