Efficient slag scraper for semisteel smelting
The scraper design with linear closure and self-locking structure solves the problem of scraper damage during oxygen lance lifting, achieving a more stable steel slag cleaning effect and improving service life and work efficiency.
Patent Information
- Application Number
- CN202520153057.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-23
- Publication Date
- 2026-02-13
- Estimated Expiration
- 2035-01-23
AI Technical Summary
The existing scraper is unable to support the lifting force of the oxygen lance after closing, which leads to damage to the scraper. In addition, it lacks a self-locking function, which affects the stability of use and work efficiency.
The system employs a linear closed structure and a self-locking structure. The scraper assembly is driven to move towards each other by the first and second linear modules, forming a gap through which the oxygen supply gun passes. The self-locking structure enables self-locking when the scraper assembly is closed, thereby enhancing the structural strength and stability.
It improves the stability of the scraper, reduces damage to the scraper caused by the lifting force of the oxygen lance, increases work efficiency, and ensures that the steel slag on the surface of the oxygen lance can be effectively cleaned.
Smart Images

Figure CN223906887U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of metallurgical accessories, in particular to a high -efficient slag scraper for semi -steel smelting. BACKGROUND
[0002] In the process of vanadium extraction semi -steel smelting, the steel slag with strong adhesion is produced, and the steel slag is easy to adhere to the outer wall of the oxygen lance and cannot be naturally cooled and broken off. To this end, when the converter steelmaking is designed, the slag scraper is arranged at the oxygen lance hole of the oxygen lance inlet and outlet flue, which is used to scrape off the adhering slag on the oxygen lance when the oxygen lance is taken out of the oxygen lance hole, so that the oxygen lance can be smoothly taken out of the oxygen lance hole of the flue, and the steelmaking is ensured to proceed smoothly. At present, the existing slag scraper for oxygen lance has the following problems when in use: 1. The cutter holder of the slag scraper does not have a self-locking function after closing, and only the piston thrust of the cylinder is used to maintain balance after being subjected to the upward lifting tension of the oxygen lance, but the thrust of the cylinder is limited and cannot withstand the tension generated when the oxygen lance is lifted, which will cause damage to the slag scraper; 2. The arc link and the base in the slag scraper are mainly made of 20mm thick steel plate welded together, which results in insufficient overall structural strength. SUMMARY
[0003] The utility model discloses to solve the problem that the existing slag scraper is damaged due to the difficulty in supporting the lifting tension of the oxygen lance after closing, and the problem that the slag scraper cannot be self-locked after closing, provides a high -efficient slag scraper for semi -steel smelting, changes the closing mode of the slag scraper to linear closing, improves the use stability of the slag scraper, reduces the damage of the slag scraper caused by the lifting tension of oxygen, and can realize self-locking quickly after the slag scraper is closed, and improves the working efficiency.
[0004] The utility model discloses a technical scheme that is:
[0005] Provide a kind of high -efficient slag scraper for semi -steel smelting, comprising:
[0006] First base, its top is equipped with first linear module, and the working end of first linear module is equipped with first scraper assembly;
[0007] Second base, it is equipped in the side of first base, and the top of second base is equipped with second linear module, and the working end of second linear module is equipped with second scraper assembly;
[0008] Self-locking structure, it is equipped between first scraper assembly and second scraper assembly, when first scraper assembly and second scraper assembly are formed to self-locking structure when moving towards each other, first scraper assembly and second scraper assembly are locked by self-locking structure Limitation, so that first scraper assembly and second scraper assembly cannot move away from each other;
[0009] Wherein, first linear module and second linear module are reciprocated along horizontal direction, and first scraper assembly and second scraper assembly have gap for oxygen lance to pass through.
[0010] Optionally, the first linear module comprises:
[0011] a first side plate arranged on the top of the first base, a first sliding rail arranged on the side wall surface of the first side plate;
[0012] a first air cylinder arranged on the top of the first base, used for driving the first scraper assembly to move in the horizontal direction;
[0013] wherein the first scraper assembly is located inside the first sliding rail.
[0014] Optionally, the second linear module comprises:
[0015] a second side plate arranged on the top of the second base, a second sliding rail arranged on the side wall surface of the second side plate;
[0016] a second air cylinder arranged on the top of the second base, used for driving the second scraper assembly to move in the horizontal direction;
[0017] wherein the second scraper assembly is located inside the second sliding rail.
[0018] Optionally, the first scraper assembly comprises:
[0019] a first tool holder arranged on the telescopic end of the first air cylinder, and the first tool holder is located inside the first sliding rail;
[0020] a first scraper arranged on the outer wall surface of the first tool holder, used for scraping the sticky slag on the surface of the oxygen lance.
[0021] Optionally, the second scraper assembly comprises:
[0022] a second tool holder arranged on the telescopic end of the second air cylinder, and the second tool holder is located inside the second sliding rail;
[0023] a second scraper arranged on the outer wall surface of the second tool holder, used for scraping the sticky slag on the surface of the oxygen lance together with the first scraper.
[0024] Optionally, the self-locking structure comprises:
[0025] a first fixed block arranged on the top of the first tool holder, a first fixed seat arranged on the outer wall surface of the first fixed block, a first hook hinged to the first fixed seat, and a first torsional spring arranged at the hinge between the first fixed seat and the first hook;
[0026] a first fixed strip arranged on the outer wall surface of the first fixed block, a first limiting groove arranged on the top of the first fixed strip, a first limiting block arranged on the top of the first fixed block and located in the first limiting groove, and a first spring arranged at the bottom of the first limiting block and connected to the first fixed strip;
[0027] The second fixed block is arranged on the top of the second tool rest, a second fixed seat is arranged on the outer wall surface of the second fixed block, a second hook is hinged to the second fixed seat, and a second torsion spring is arranged at the hinge position of the second fixed seat and the second hook;
[0028] The second fixed strip is arranged on the outer wall surface of the second fixed block, a second limiting groove is arranged on the top of the second fixed strip, a second limiting block is arranged on the top of the second fixed block and located in the second limiting groove, and a second spring connected with the second fixed strip is arranged on the bottom of the second limiting block;
[0029] The first hook and the second hook can be locked by hooking each other.
[0030] Optionally, the base is composed of a plurality of 25-shaped steel.
[0031] Optionally, the thickness of the first tool rest and the second tool rest is 90mm.
[0032] The beneficial effects of the utility model are as follows:
[0033] The first linear module on the first base is driven to make the working end of the first linear module run and move along the horizontal direction, at the same time, the second linear module on the second base is driven to make the working end of the second linear module run at the same time and also move along the horizontal direction, the working end of the first linear module moves towards the direction of the second linear module, the working end of the second linear module moves towards the direction of the first linear module, and the two move close to each other and form a gap for the oxygen lance to pass through, in the gap, the first scraper assembly on the working end of the first linear module and the second scraper assembly on the working end of the second linear module can scrape and clean the oxygen lance, compared with the existing slag scraper which realizes slag scraping treatment by rotating and closing, the scheme is more stable, and when the oxygen lance passes through the gap between the first scraper assembly and the second scraper assembly, the pulling force generated by the lifting of the oxygen lance can be borne by the first linear module and the second linear module, so that the slag scraper is prevented from being damaged. BRIEF DESCRIPTION OF DRAWINGS
[0034] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor.
[0035] Figure 1 It is a front view structural schematic diagram of a high-efficiency slag scraper for semi-steel smelting;
[0036] Figure 2 It is a top view structural schematic diagram of the first tool rest;
[0037] Figure 3 A top view schematic diagram of a self-locking structure;
[0038] Figure 4 A front view schematic diagram of the first limiting block and the first fixed strip.
[0039] Reference signs:
[0040] 1 - first base, 2 - second base;
[0041] 3 - first linear module, 30 - first air cylinder, 31 - first side plate, 32 - first slide rail;
[0042] 4 - second linear module, 40 - second air cylinder, 41 - second side plate, 42 - second slide rail;
[0043] 5 - first scraper assembly, 50 - first tool holder, 51 - first scraper;
[0044] 6 - second scraper assembly, 60 - second tool holder, 61 - second scraper;
[0045] 7 - self-locking structure, 70 - first fixed block, 701 - first fixed seat, 7010 - first hook, 702 - first fixed strip, 7020 - first limiting groove, 7021 - first limiting block, 7022 - first spring, 71 - second fixed block, 710 - second fixed seat, 7101 - second hook, 711 - second fixed strip, 7110 - second limiting groove, 7111 - second limiting block. DETAILED DESCRIPTION
[0046] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.
[0047] The following disclosure provides many different embodiments or examples for implementing different structures of the present application. In order to simplify the disclosure of the present application, the components and settings of specific examples are described below. Of course, they are only examples and the purpose is not to limit the present application.
[0048] The embodiments of the present application will be described in detail below with reference to the accompanying drawings.
[0049] Embodiment 1
[0050] As shown in Figure 1 and Figure 2 The embodiment discloses a high-efficiency slag scraper for semi-steel smelting, which comprises a first base 1 and a second base 2. A first linear module 3 is arranged on the top of the first base 1, and a first scraper assembly 5 is arranged on the working end of the first linear module 3. The second base 2 is arranged on one side of the first base 1 and has a spacing between the first base 1 and the second base 2, and the size of the second base 2 is the same as that of the first base 1. A second linear module 4 is arranged on the top of the second base 2, and a second scraper assembly 6 is arranged on the working end of the second linear module 4. Among them, the working end of the first linear module 3 and the working end of the second linear module 4 can reciprocate in the horizontal direction, and the moving directions of the first linear module 3 and the second linear module 4 are opposite, that is, when the working end of the first linear module 3 moves towards the second linear module 4, the working end of the first linear module 3 can touch and completely overlap with the working end of the second linear module 4. When the first linear module 3 and the second linear module 4 move to a gap between the first scraper assembly 5 and the second scraper assembly 6 for the oxygen lance to pass through, the first scraper assembly 5 and the second scraper assembly 6 are closed at this time, and the steel slag attached to the oxygen lance is scraped off.
[0051] The first linear module 3 on the first base 1 comprises a first side plate 31 and a first air cylinder 30. The first side plate 31 is arranged on the top of the first base 1, and a first sliding rail 32 is arranged on the side wall surface of the first side plate 31. The first air cylinder 30 is arranged on the top of the first base 1, and the first scraper assembly 5 on the output end of the first air cylinder 30 is located in the first sliding rail 32 and is limited by the first sliding rail 32. The first scraper assembly 5 on the working end of the first linear module 3 comprises a first tool holder 50 and a first scraper 51. The first tool holder 50 slides in the first sliding rail 32 and is limited by the first side plate 31. One end of the first tool holder 50 is connected with the telescopic end of the first air cylinder 30, so that the first tool holder 50 is driven by the first air cylinder 30 to slide in the first sliding rail 32. The first scraper 51 is arranged on the other end of the first tool holder 50 and is used for scraping off the steel slag on the surface of the oxygen lance.
[0052] The second linear module 4 on the second base 2 comprises a second side plate 41 and a second cylinder 40. The second side plate 41 is arranged on the top of the second base 2, and a second sliding rail 42 is arranged on the side wall surface of the second side plate 41. The second cylinder 40 is arranged on the top of the second base 2, and a second scraper assembly 6 on the output end of the second cylinder 40 is located in the inside of the second sliding rail 42 and is limited by the second sliding rail 42. The second scraper assembly 6 on the working end of the second linear module 4 comprises a second tool holder 60 and a second scraper 61. The second tool holder 60 slides in the second sliding rail 42 and is limited by the second side plate 41. One end of the second tool holder 60 is connected with the telescopic end of the second cylinder 40, so that the second tool holder 60 is driven by the second cylinder 40 to slide in the second sliding rail 42. The second scraper 61 is arranged on the other end of the second tool holder 60 and is used for scraping the steel slag on the surface of the oxygen lance.
[0053] The specific working principle of the embodiment is as follows: the first cylinder 30 on the first base 1 and the second cylinder 40 on the second base 2 are simultaneously driven to operate, the telescopic end of the first cylinder 30 drives the first tool holder 50 to slide in the first sliding rail 32 of the first side plate 31, and the telescopic end of the second cylinder 40 drives the second tool holder 60 to slide in the second sliding rail 42 of the second side plate 41, so that the first scraper 51 on the first tool holder 50 and the second scraper 61 on the second tool holder 60 move towards each other, and the gap between the first scraper 51 and the second scraper 61 can scrape the steel slag adhered to the outer wall surface of the oxygen lance after the first scraper 51 and the second scraper 61 approach each other. In addition, the first sliding rail 32 on the first side plate 31 and the second sliding rail 42 on the second side plate 41 can limit the first tool holder 50 and the second tool holder 60, so that the lifting tension of the first tool holder 50 and the second tool holder 60 respectively brought by the first scraper 51 and the second scraper 61 during the lifting of the oxygen lance is not too large, and the whole slag scraper is not damaged.
[0054] In the embodiment, the first base 1 and the second base 2 are both composed of a plurality of 25-shaped steel, which is stronger and more stable. In addition, the thickness of the first tool holder 50 and the second tool holder 60 is 90 mm, so that the overall strength of the first tool holder 50 and the second tool holder 60 during use is improved.
[0055] Embodiment 2
[0056] As Figures 1-4As shown, the embodiment is further optimization based on the embodiment 1, specifically, a self-locking structure 7 is arranged on the top of the first tool rest 50 and the top of the second tool rest 60, the self-locking structure 7 comprises: a first fixed block 70, a second fixed block 71, a first fixed strip 702 and a second fixed strip 711. Wherein, the first fixed block 70 is arranged on the top of the first tool rest 50 and located at the edge of the end of the first tool rest 50 facing the second tool rest 60. A first fixed seat 701 is arranged on the end face of the end of the first fixed block 70 facing the second base 2, the first fixed seat 701 is hinged with a first hook 7010, so that the first hook 7010 can rotate on the first fixed seat 701 with the hinged point of the first hook 7010 and the first fixed seat 701 as the center. In addition, a first torsional spring is arranged at the hinged point of the first fixed seat 701 and the first hook 7010, so that the first hook 7010 can reset to the original position after rotating to a certain position due to the action of the first torsional spring, at this time the first torsional spring is in a natural state. The first fixed strip 702 is arranged on the outer wall surface of the first fixed block 70 in an inclined manner, and the first fixed strip 702 and the first hook 7010 have a distance for the rotation of the first hook 7010. A first limiting groove 7020 is arranged on the top of the first fixed strip 702, and the first limiting groove 7020 is located at the end of the first fixed strip 702. The first limiting block 7021 located in the first limiting groove 7020 is arranged on the top of the first fixed strip 702, and the first spring 7022 connected with the first fixed strip 702 is arranged on the bottom of the first limiting block 7021.
[0057] The second fixed block 71 is arranged on the top of the second tool rest 60 and located at the edge of the end of the second tool rest 60 facing the first tool rest 50. A second fixed seat 710 is arranged on the end face of the end of the second fixed block 71 facing the second base 2, the second fixed seat 710 is hinged with a second hook 7101, so that the second hook 7101 can rotate on the second fixed seat 710 with the hinged point of the second hook 7101 and the second fixed seat 710 as the center. In addition, a second torsional spring is arranged at the hinged point of the second fixed seat 710 and the second hook 7101, so that the second hook 7101 can reset to the original position after rotating to a certain position due to the action of the second torsional spring, at this time the second torsional spring is in a natural state. The second fixed strip 711 is arranged on the outer wall surface of the second fixed block 71 in an inclined manner, and the second fixed strip 711 and the second hook 7101 have a distance for the rotation of the second hook 7101. A second limiting groove 7110 is arranged on the top of the second fixed strip 711, and the second limiting groove 7110 is located at the end of the second fixed strip 711. The second limiting block 7111 located in the second limiting groove 7110 is arranged on the top of the second fixed strip 711, and the second spring connected with the second fixed strip 711 is arranged on the bottom of the second limiting block 7111.
[0058] It is worth noting that the orientation of the first hook 7010 and the orientation of the second hook 7101 are opposite. During the contact of the first hook 7010 and the second hook 7101, extrusion occurs between them, so that the first hook 7010 rotates under the extrusion of the second hook 7101, and the second hook 7101 rotates under the extrusion of the first hook 7010, and with the continuous feeding of the first blade holder 50 and the second blade holder 60, the first hook 7010 and the second hook 7101 can be hung together.
[0059] The specific working principle of the embodiment is: during the closing of the first blade holder 50 and the second blade holder 60, the first hook 7010 and the second hook 7101 will first contact each other and start to extrude each other until the hooking parts of the first hook 7010 and the second hook 7101 can be hung with each other, at which time the first hook 7010 and the second hook 7101 are hung between them, so that the self-locking between the first blade holder 50 and the second blade holder 60 is completed. When the oxygen lance is lifted, the lifting tension applied by the first scraper 51 and the second scraper 61 to the first blade holder 50 and the second blade holder 60 respectively can be offset by the first hook 7010 and the second hook 7101 hung with each other, and the first blade holder 50 and the second blade holder 60 can be prevented from being separated, so that the steel slag on the surface of the oxygen lance cannot be cleaned completely. After the steel slag on the surface of the oxygen lance is cleaned, the first cylinder 30 and the second cylinder 40 are continuously driven to operate, so that the first blade holder 50 and the second blade holder 60 continue to move towards each other. In this process, the first hook 7010 and the second hook 7101 hung with each other will be separated and move in opposite directions. When the first hook 7010 and the second hook 7101 move, they will contact and extrude each other again, so that the first hook 7010 can be rotated to be limited on the outer wall surface of the first limiting block 7021 on the first fixed strip 702, and the second hook 7101 can be rotated to be limited on the outer wall surface of the second limiting block 7111 on the second fixed strip 711. At this time, the first hook 7010 and the second hook 7101 are separated, and finally the first cylinder 30 and the second cylinder 40 are driven to separate the first blade holder 50 and the second blade holder 60. It is worth noting that after the first hook 7010 and the second hook 7101 are separated until the first hook 7010 and the second hook 7101 are limited, the first blade holder 50 and the second blade holder 60 will not be in complete contact, and there will still be a movement gap between the first blade holder 50 and the second blade holder 60, so as to avoid damage caused by extrusion between the first blade holder 50 and the second blade holder 60.
[0060] Finally, it should be noted that the above is only the preferred embodiment of the present application, and is not intended to limit the present application, for those skilled in the art, the present application can have various changes and variations, in the case of no conflict, the embodiments of the present application and the features in the embodiments can be combined with each other arbitrarily. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims
1. A high-efficiency slag scraper for semi-steel smelting, characterized by, The utility model relates to a kind of oxygen lance cleaning device, including: First base, the top of which is provided with first linear module, and the working end of the first linear module is provided with first scraper assembly; Second base, which is provided on one side of the first base, the top of which is provided with second linear module, and the working end of the second linear module is provided with second scraper assembly; Self-locking structure, which is provided between the first scraper assembly and the second scraper assembly, when the first scraper assembly and the second scraper assembly approach to self-locking structure, the first scraper assembly and the second scraper assembly are locked and limited by self-locking structure, so that the first scraper assembly and the second scraper assembly cannot move away from each other; Wherein, the first linear module and the second linear module both move reciprocatingly along horizontal direction, and the first scraper assembly and the second scraper assembly have a gap for the oxygen lance to pass through.
2. The efficient slag scraper for semi-steel smelting according to claim 1, characterized in that, The first linear module includes: First side plate, which is provided on the top of the first base, and the sidewall surface of the first side plate is provided with first slide rail; First air cylinder, which is provided on the top of the first base, for driving the first scraper assembly to move along horizontal direction; Wherein, the first scraper assembly is located inside the first slide rail.
3. The efficient slag scraper for semi-steel smelting according to claim 2, characterized in that, The second linear module includes: Second side plate, which is provided on the top of the second base, and the sidewall surface of the second side plate is provided with second slide rail; Second air cylinder, which is provided on the top of the second base, for driving the second scraper assembly to move along horizontal direction; Wherein, the second scraper assembly is located inside the second slide rail.
4. The efficient slag scraper for semi-steel smelting according to claim 3, characterized in that, The first scraper assembly includes: First tool holder, which is provided on the telescopic end of the first air cylinder, and the first tool holder is located inside the first slide rail; First scraper, which is provided on the outer wall surface of the first tool holder, for scraping the adhering slag on the surface of the oxygen lance.
5. The efficient slag scraper for semi-steel smelting according to claim 4, characterized in that, The second scraper assembly includes: Second tool holder, which is provided on the telescopic end of the second air cylinder, and the second tool holder is located inside the second slide rail; Second scraper, which is provided on the outer wall surface of the second tool holder, for scraping the adhering slag on the surface of the oxygen lance together with the first scraper.
6. The efficient slag scraper for semi-steel smelting according to claim 5, characterized in that, The self-locking structure includes: First fixed block, which is provided on the top of the first tool holder, and the outer wall surface of the first fixed block is provided with first fixed seat, the first fixed seat is hinged with first hook, and the hinge between the first fixed seat and the first hook is provided with first torsional spring; First fixed strip, which is provided on the outer wall surface of the first fixed block, and the top of the first fixed strip is provided with first limiting groove, the top of the first fixed block is provided with first limiting block located in the first limiting groove, and the bottom of the first limiting block is provided with first spring connected with the first fixed strip; Second fixed block, which is provided on the top of the second tool holder, and the outer wall surface of the second fixed block is provided with second fixed seat, the second fixed seat is hinged with second hook, and the hinge between the second fixed seat and the second hook is provided with second torsional spring. A second fixing strip is arranged on the outer wall surface of the second fixing block, a top portion of the second fixing strip is provided with a second limiting groove, a top portion of the second fixing block is provided with a second limiting block located in the second limiting groove, and a bottom portion of the second limiting block is provided with a second spring connected with the second fixing strip. The first hook and the second hook can be hooked to each other to be locked.
7. The efficient slag scraper for semi-steel smelting according to claim 5, characterized in that, The base is composed of a plurality of 25-shaped I-beams.
8. The efficient slag scraper for semi-steel smelting according to claim 5, characterized in that, The thickness of the first tool holder and the second tool holder is 90 mm.