Converter lining thickness detection device

Abstract

The invention relates to the technical field of detection devices, and provides a converter lining thickness detection device, which is used for detecting the thickness of a converter lining, and comprises a mounting rack, the mounting rack is movably arranged relative to a converter, and the mounting rack is located above the converter; the mounting frame is arranged to be close to or away from the central axis of the converter after moving; the detection device is vertically arranged on the mounting frame in a lifting manner; the detection device is arranged to extend into or retreat from the interior of the converter after ascending and descending; the plurality of positioning units are uniformly distributed in the circumferential direction of the detection device at intervals; according to the positioning unit, one end of a swing part is hinged to a mounting frame; two ends of the support member are respectively hinged to the detection device and the swing member. The positioning claw is hinged to the other end of the swing piece. By means of the technical scheme, the technical problem that in the prior art, a furnace lining thickness detection device does not enter the converter along the axis of the converter, and consequently the furnace lining thickness detection result is not accurate is solved.

Description

Technical Field

[0001] Embodiments of the present disclosure relate to the technical field of detection devices, and in particular, to a converter lining thickness detection device. Background Art

[0002] In the process of steel smelting, the condition of the converter lining, as a key equipment, has a vital impact on the safe and stable operation of the converter and the quality and efficiency of steel production. Under the influence of long-term high temperature, slag erosion, molten steel scouring and other harsh working conditions, the lining will gradually become thinner. When the thickness of the lining is lower than the safety threshold, it may cause serious accidents such as steel leakage, which will not only cause huge economic losses, but also pose a threat to the safety of production personnel. Therefore, accurately detecting the thickness of the converter lining and timely grasping the erosion of the lining are of great significance for the reasonable arrangement of converter maintenance and ensuring production safety.

[0003] Although laser ranging technology has been used in converter lining thickness detection, its principle is to emit a laser beam to the lining surface, and then calculate the distance based on the time it takes for the laser to reflect back, thereby obtaining the lining thickness. However, in actual applications, the high dust and complex airflow environment inside the converter will interfere with the laser propagation path and reflected signal. These factors make it difficult for the detection device based on laser ranging to work accurately, and the reliability of the detection results is greatly reduced.

[0004] Ultrasonic thickness gauges use the difference in the propagation speed of ultrasonic waves in different media and the reflection characteristics at the interface to measure thickness. When inspecting the converter lining, the ultrasonic probe needs to be well coupled with the lining surface. However, the surface of the converter lining is rough and irregular, making it difficult to achieve an ideal coupling effect, resulting in severe attenuation of the ultrasonic signal and increased measurement errors.

[0005] In addition, many detection devices cannot accurately enter along the axis of the converter every time when entering the converter for detection. Due to the structural characteristics of the converter, the erosion of the internal lining is not evenly distributed. If the detection device cannot enter along the axis of the converter, it is difficult to accurately detect each part of the lining, and the test results will be affected, resulting in inaccurate lining thickness data obtained by the test. Based on such inaccurate test results, deviations will occur in assessing the remaining life of the lining and formulating maintenance plans, which may cause premature or late lining maintenance, which not only increases unnecessary costs, but also may cause safety accidents before the lining actually needs maintenance. Summary of the invention

[0006] To overcome the above defects, an embodiment of the present disclosure provides a converter lining thickness detection device, which solves the technical problem in the prior art that the lining thickness detection device does not enter the converter along the converter axis, resulting in inaccurate lining thickness detection results.

[0007] According to one aspect, at least one embodiment of the present disclosure provides a converter lining thickness detection device, comprising: A mounting frame, the mounting frame is movably disposed above the converter; the mounting frame is arranged to move closer to or farther from the central axis of the converter; A detection unit, the detection unit is arranged to be lifted below the mounting frame; the detection unit is arranged to be moved downward into or upward out of the converter after being lifted; A plurality of positioning units, wherein the plurality of positioning units are connected to the mounting frame and are evenly spaced along the circumference of the detection unit; Wherein, the positioning unit comprises: A swinging member, one end of which is hingedly arranged on the mounting frame; A support member, two ends of which are respectively hinged to the detection unit and the swing member in one-to-one correspondence, and the support member is used to drive the swing member to swing so that the other end of the swing member is close to the converter; A positioning claw is hingedly arranged at the other end of the swinging member, and is used to press against the outer wall of the furnace mouth of the converter under the drive of the swinging member, and make the detection unit coincide with the axis of the converter.

[0008] For example, in a converter lining thickness detection device provided by at least one embodiment of the present disclosure, the outer end of the positioning claw has a first abutment portion and a second abutment portion, and when the positioning claw and the converter are in a pressing state, the first abutment portion is located on a side of the second abutment portion close to the detection unit, and the positioning unit further includes: A connecting member, through which the positioning claw is connected to the swinging member, one end of the connecting member is rotatably connected to the swinging member, and the other end is hinged to the positioning claw; A first elastic member, two ends of which act on the positioning claw and the connecting member respectively, and are used to push the first abutting portion so that the first abutting portion abuts against the side wall of the converter furnace port before the second abutting portion.

[0009] For example, in a converter lining thickness detection device provided in at least one embodiment of the present disclosure, the converter lining thickness detection device further includes: A bracket, wherein the bracket is arranged on one side of the converter; A cantilever, the cantilever being rotatably disposed on the bracket, the cantilever being arranged to move closer to or farther away from the converter after rotation; A sliding frame, the sliding frame is arranged on the cantilever for transverse sliding; A winding piece is arranged on the sliding frame; a chain is wound around the winding piece, and the mounting frame is connected to the chain; the mounting frame can move downward and approach the converter when the winding piece is unwinding, or move upward and away from the converter when the winding piece is winding.

[0010] For example, in a converter lining thickness detection device provided in at least one embodiment of the present disclosure, the converter lining thickness detection device further includes: A protective cover is arranged on the sliding frame and is used to protect the winding member; the lower edge of the protective cover has a plurality of limiting protrusions; the limiting protrusions are used to abut against the swinging member to limit the position of the mounting frame relative to the protective cover.

[0011] For example, in a converter lining thickness detection device provided in at least one embodiment of the present disclosure, the detection unit is threadedly connected to the mounting frame, and the converter lining thickness detection device further includes: The mounting ring is rotatably arranged on the detection unit, and the support is hingedly arranged on the detection unit through the mounting ring.

[0012] For example, in a converter lining thickness detection device provided in at least one embodiment of the present disclosure, the detection unit includes: A sleeve, the sleeve is threadedly connected to the mounting frame; the mounting ring is rotatably arranged on the sleeve; the sleeve is arranged to make the detection unit descend or ascend after rotation; the sleeve has a threaded through hole along the axial direction; A mounting rod, the mounting rod being threadedly connected to the threaded through hole, and both ends of the mounting rod protruding from the threaded through hole; A detection head, the detection head is arranged at the lower end of the mounting rod; The mounting rod is arranged to slide vertically in the threaded through hole after being rotated, so as to move the detection head away from or close to the sleeve.

[0013] For example, in a converter lining thickness detection device provided by at least one embodiment of the present disclosure, the sleeve has a first slide groove, one end of which is connected to the threaded through hole; the mounting rod has a clamping hole and a disengagement groove, the disengagement groove is connected to the clamping hole; the mounting rod also has a second slide groove, the second slide groove is connected to the disengagement groove, and the detection unit further includes: a first telescopic rod, the first telescopic rod being disposed in the first sliding groove; a second telescopic rod, the second telescopic rod being arranged in the second sliding groove, and the second telescopic rod forming a clamping space with the clamping hole after being extended; The first telescopic rod and the second telescopic rod are arranged such that, after the first telescopic rod is extended, it is located in the clamping space, so that the rotation of the mounting rod can drive the sleeve to rotate; after the positioning claw abuts against the side wall of the converter furnace mouth, the rotation of the sleeve is restricted; the rotation of the mounting rod causes the first telescopic rod to push the second telescopic rod to retract, and the first telescopic rod can disengage from the clamping space along the disengagement groove.

[0014] For example, in a converter lining thickness detection device provided in at least one embodiment of the present disclosure, the converter lining thickness detection device further includes: A rotating shaft, the rotating shaft is rotatably arranged on the mounting frame; the mounting rod is arranged to be slidably arranged in the rotating shaft, and the rotating shaft is used to drive the mounting rod to rotate; A rotation driving member is arranged on the mounting frame and is used for driving the rotating shaft to rotate.

[0015] For example, in a converter lining thickness detection device provided in at least one embodiment of the present disclosure, the detection unit further includes: a second elastic member, the second elastic member being disposed in the first slide groove, the two ends of the second elastic member acting on the inner wall of the first slide groove and the first telescopic rod respectively, for pushing the first telescopic rod so that the first telescopic rod extends out of the first slide groove; A third elastic member, wherein the third elastic member is disposed in the second slide groove, and two ends of the third elastic member respectively act on the inner wall of the second slide groove and the second telescopic rod, so as to push the second telescopic rod so that the second telescopic rod extends out of the second slide groove.

[0016] For example, in a converter lining thickness detection device provided by at least one embodiment of the present disclosure, one end of the first telescopic rod protruding from the second slide slot has a rounded corner; one end of the second telescopic rod protruding from the second slide slot has a rounded corner.

[0017] The beneficial effects of the embodiments of the present disclosure are: In the present disclosure, by utilizing the synergistic effect of the support member, the swing member and the positioning claw, the position of the mounting frame can be automatically adjusted during the descent of the detection device, ensuring that the detection device coincides with the axis of the converter, avoiding detection errors caused by the detection device deviating from the axis, and greatly improving the accuracy of the detection results. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the following briefly introduces the drawings required for use in the description of the embodiments of the present disclosure. Obviously, the drawings described below are only some exemplary embodiments of the present disclosure. For those of ordinary skill in the art, other drawings can be obtained based on the contents of the exemplary embodiments of the present disclosure and these drawings without creative work.

[0019] Figure 1 It is a schematic diagram of the overall structure of a converter lining thickness detection device in one embodiment of the present disclosure; Figure 2 for Figure 1 Enlarged view of point A in the middle; Figure 3 for Figure 1 A schematic structural diagram of a converter lining thickness detection device in an embodiment of the present invention; Figure 4 for Figure 1 A schematic cross-sectional structure diagram of a converter lining thickness detection device in an embodiment of the present invention; Figure 5 for Figure 4 Enlarged view of point B in the middle; Figure 6 for Figure 1 A schematic structural diagram of a mounting rod and a detection head of a converter lining thickness detection device in an embodiment of the present invention; Figure 7 for Figure 1 A schematic cross-sectional structure diagram of a mounting rod and a detection head of a converter lining thickness detection device in an embodiment of the present invention; Figure 8 for Figure 7 Enlarged view of point C in the middle; Fig. 9 for Figure 1 A schematic structural diagram of another state of a converter lining thickness detection device as a whole in an embodiment of the present invention; Fig.10 for Fig. 9 Enlarged view of point D in the middle.

[0020] In the figure: 1, converter, 2, mounting frame, 3, detection unit, 4, positioning unit, 401, swing member, 402, support member, 403, positioning claw, 4031, first abutment portion, 4032, second abutment portion, 405, connecting member, 404, first elastic member, 5, bracket, 6, cantilever, 7, sliding frame, 8, winding member, 9, protective cover, 901, limiting protrusion, 10, mounting ring, 301, sleeve, 3011, cavity, 302, mounting rod, 303, detection head, 3012, first slide groove, 3021, clamping hole, 3022, disengagement groove, 3023, second slide groove, 304, first telescopic rod, 305, second telescopic rod, 11, rotating shaft, 12, rotating drive member, 13, second elastic member, 14, third elastic member. DETAILED DESCRIPTION The present disclosure is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present disclosure, rather than to limit the present disclosure.

[0021] In order to simplify the drawings, only the parts related to the disclosure are schematically shown in each figure, and they do not represent the actual structure of the product. In addition, in order to simplify the drawings and facilitate understanding, in some figures, only one of the parts with the same structure or function is schematically shown, or only one of them is marked. In this article, "one" not only means "only one", but also means "more than one", and "several" includes "two" and "more than two".

[0022] In this document, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this disclosure can be understood according to specific circumstances.

[0023] In the present disclosure, unless otherwise expressly specified and limited, a first feature being “above” or “below” a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being “above”, “above”, and “above” a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being “below”, “below”, and “below” a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0024] In the description of this embodiment, terms such as "up", "down", "left", and "right" and other orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings and are only for the convenience of description and simplification of operation, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present disclosure.

[0025] In addition, in the description of the present application, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0026] like Figure 1 to Figure 10 As shown, it shows a converter lining thickness detection device in an embodiment of the present disclosure, including a mounting frame 2, which is movably arranged above the converter 1; the mounting frame 2 is arranged to move closer to or away from the central axis of the converter 1 after movement; the detection unit 3 is lifted and arranged below the mounting frame 2; the detection unit 3 is arranged to move downward into or upward out of the converter 1 after lifting; there are a number of positioning units 4, and the plurality of positioning units 4 are connected to the mounting frame 2 and are evenly spaced along the circumference of the detection unit 3; wherein the positioning unit 4 includes a swinging member 401, one end of which is hingedly arranged on the mounting frame 2; the two ends of the support member 402 are respectively hinged to the detection unit 3 and the swinging member 401 in a one-to-one correspondence, and the support member 402 is used to drive the swinging member 401 to swing so that the other end of the swinging member 401 is close to the converter 1; the positioning claw 403 is hingedly arranged at the other end of the swinging member 401, and the positioning claw 403 is used to press against the outer wall of the furnace mouth of the converter 1 under the drive of the swinging member 401, and make the detection unit 3 coincide with the axis of the converter 1.

[0027] For example, Figure 1-2 As shown, in order to solve the problem that the lining thickness detection unit 3 in the prior art does not enter the converter 1 along the axis of the converter 1, resulting in inaccurate detection results, a converter lining thickness detection device is designed. The mounting frame 2 is arranged above the converter 1 through a track and a matching transverse moving device, and can move laterally along the track to approach or move away from the converter 1. The detection unit 3 integrates an advanced laser ranging sensor and a data processing module, and is connected to the mounting frame 2 through a lead screw nut pair to provide power for the vertical lifting of the detection unit 3. Four positioning units 4 are evenly distributed around the detection unit 3, and adjacent detection units 3 are spaced 90° apart. The positioning unit 4 includes a swing member 401, a support member 402 and a positioning claw 403. The swing member 401 is an L-shaped or arc-shaped metal rod, one end of which is hinged to the edge of the mounting frame 2 through a pin; the support member 402 can be a telescopic rod, and its two ends are respectively hinged to the detection unit 3 and the swing member 401 through a universal joint; the shape of the positioning claw 403 matches the side wall of the furnace mouth of the converter 1 and is hinged to the other end of the swing member 401.

[0028] Specifically, before the detection, the detection unit 3 is first raised to the highest position to prevent the mounting frame 2 from colliding with the converter 1 during the movement. After the converter 1 completes the dumping of the material and returns to the normal position, the transverse movement device is started to make the mounting frame 2 approach the converter 1 along the track. When the mounting frame 2 reaches the predetermined position, the servo motor is started again to make the detection unit 3 descend vertically. As the detection unit 3 descends, the support member 402 begins to push the swing member 401 to swing around its hinge point due to the hinged relationship with the detection unit 3 and the swing member 401. The swing of the swing member 401 drives the positioning claw 403 to gradually approach the side wall of the furnace mouth of the converter 1. At first, one or two positioning claws 403 may not be able to press against the side wall of the furnace mouth, but as the detection unit 3 continues to descend and the clamping force continues to increase, the four positioning claws 403 can finally be tightly abutted against the side wall of the furnace mouth. In this process, the mounting frame 2 will automatically fine-tune the position until the detection unit 3 coincides with the axis of the converter 1. After confirming the overlap, the detection unit 3 continues to descend into the converter 1, the laser ranging sensor starts to emit a laser beam, receives the signal reflected from the lining surface, and the data processing module calculates the lining thickness based on the laser round trip time and transmits the data to the external control system in real time.

[0029] The advantage is that, through the coordinated operation of the support member 402, the swing member 401 and the positioning claw 403, the device can automatically adjust the position of the mounting frame 2 during the descent of the detection unit 3 to ensure that the detection unit 3 coincides with the axis of the converter 1, effectively avoiding the detection error caused by the deviation of the detection unit 3 from the axis, and greatly improving the accuracy of the furnace lining thickness detection results.

[0030] In some examples, the outer end of the positioning claw 403 has a first abutment portion 4031 and a second abutment portion 4032. When the positioning claw 403 and the converter 1 are in a pressing state, the first abutment portion 4031 is located on the side of the second abutment portion 4032 close to the detection unit 3. The positioning unit 4 also includes a connecting member 405. The positioning claw 403 is connected to the swinging member 401 through the connecting member 405. One end of the connecting member 405 is rotatably connected to the swinging member 401, and the other end is hinged to the positioning claw 403; the two ends of the first elastic member 404 act on the positioning claw 403 and the connecting member 405 respectively, for pushing the first abutment portion 4031 so that the first abutment portion 4031 abuts against the side wall of the converter 1 before the second abutment portion 4032.

[0031] For example, Figure 1-4As shown, the outer end of the positioning claw 403 is processed with a first abutment portion 4031, which is designed to be curved to match the curvature of the side wall of the furnace opening of the converter 1, and the inner concave surface is used to fit the side wall of the furnace opening; the end close to the detection unit 3 is processed into a second abutment portion 4032, which is also curved to match the side wall of the furnace opening. The swinging member 401 is two interlaced metal connecting rods, one end of the two metal connecting rods is hinged to the mounting frame, and the other end of the two metal connecting rods is rotatably connected to the connecting member 404 to form a parallelogram mechanism.

[0032] One end of the connecting member 405 is rotatably connected to the swinging member 401 through a bearing; the other end is hinged to the positioning claw 403 through a pin shaft to ensure that the positioning claw 403 can swing flexibly. The first elastic member 404 is a compression spring to meet the abutment requirements of the positioning claw 403. One end of the spring is connected to the position of the positioning claw 403 close to the first abutment portion 4031, and the other end is connected to the connecting member 405.

[0033] Specifically, during the descent of the detection unit 3, the positioning claw 403 approaches the side wall of the furnace opening of the converter 1 along with the swinging member 401. Due to the elastic force of the first elastic member 404, the first abutting portion 4031 of the positioning claw 403 first contacts the side wall of the furnace opening. As the detection unit 3 continues to descend, the positioning claw 403 is subjected to the reverse force of the side wall of the furnace opening and rotates around the hinge point with the connecting member 405. In this process, the connecting member 405 rotates relative to the swinging member 401 to adapt to the movement of the positioning claw 403, and at the same time, the compression spring is stretched to store elastic potential energy. As the positioning claw 403 rotates, the second abutting portion 4032 gradually approaches the side wall of the furnace opening and finally abuts tightly against the side wall of the furnace opening. During the entire abutting process, the first elastic member 404 always provides a stable elastic force to ensure that the positioning claw 403 is in close contact with the side wall of the furnace opening, complete the adjustment of the position of the mounting frame 2, and then make the detection unit 3 coincide with the axis of the converter 1.

[0034] In some examples, a device for detecting the thickness of a converter lining also includes a bracket 5, which is arranged on one side of the converter 1; a cantilever 6 is rotatably arranged on the bracket 5, and the cantilever 6 is arranged to move closer to or away from the converter 1 after rotation; a sliding frame 7 is lateral slidingly arranged on the cantilever 6; a winding member 8 is arranged on the sliding frame 7; a chain is wound around the winding member 8, and a mounting frame 2 is connected to the chain; the mounting frame 2 can move downward and approach the converter 1 when the winding member 8 is unwinding, or move upward and away from the converter 1 when the winding member 8 is winding.

[0035] For example, Figure 1-2 As shown, the bracket 5 is welded with H-shaped steel and fixed on the ground on one side of the converter 1. The cantilever 6 is rotatably arranged on the top of the bracket 5 through a large bearing. The sliding frame 7 is arranged on the linear guide rail of the cantilever 6 through a slider for transverse sliding. The winding member 8 is a high-power electric winch installed on the sliding frame 7, and the mounting frame 2 is connected to the winding member 8 through a high-strength chain.

[0036] Specifically, the cantilever 6 is first rotated to make it close to the converter 1. After ensuring that the cantilever 6 reaches the top of the converter 1, the driving motor on the sliding frame 7 is started to make the sliding frame 7 slide horizontally on the linear guide rail of the cantilever 6 to adjust the position of the winding member 8. When the winding member 8 reaches the appropriate position, the winding member 8 is started to unwind, and the mounting frame 2 slowly approaches the converter 1 under the traction of the chain. When the mounting frame 2 reaches the preset position above the converter 1, the unwinding is stopped, and the subsequent positioning and detection operations of the detection unit 3 are performed.

[0037] The advantage is that the mounting frame 2 can be flexibly and conveniently moved by the cooperation of the bracket 5, the cantilever 6, the sliding frame 7 and the winding member 8. The mounting frame 2 can be accurately moved to a suitable position above the converter 1 under different working conditions, thereby improving the installation and positioning efficiency of the detection unit 3.

[0038] In some examples, a converter lining thickness detection device also includes a protective cover 9, which is arranged on a sliding frame 7 to protect a winding member 8; the lower edge of the protective cover 9 has a plurality of limit protrusions 901; the limit protrusions 901 are used to abut against a swinging member 401 to limit the position of the mounting frame 2 relative to the protective cover 9.

[0039] For example, Figure 1-2 As shown, the protective cover 9 is a cylindrical protective shell, which is fixed to the sliding frame 7 by bolts and completely covers the winding member 8. A plurality of limiting protrusions 901 are evenly distributed on the lower end of the protective cover 9. After the swing member 401 rises to the highest point of the detection unit 3, the swing member 401 swings and tilts up, and then when the mounting frame 2 approaches the winding member 8, it can approach the protective cover 9 and contact it.

[0040] Specifically, after the detection unit 3 completes the furnace lining thickness detection, as the detection unit 3 rises, the swinging member 401 connected thereto gradually swings and tilts around the hinge point under the action of the support member 402. After the detection unit 3 rises to the highest point, the winding member 8 starts, and pulls the mounting frame 2 toward the winding member 8 through the winding wire rope. In this process, the swinging member 401 moves with the mounting frame 2 and gradually approaches the protective cover 9. When the mounting frame 2 approaches a certain position, the swinging member 401 contacts the limiting protrusion 901 at the lower end of the protective cover 9. At this time, the position of the mounting frame 2 is limited and cannot continue to approach, completing the entire limiting process.

[0041] The advantage is that the cylindrical protective cover 9 made of stainless steel can effectively resist the erosion and damage to the winding member 8 caused by dust, high temperature, water vapor and splashing, providing a safe and stable working environment for the winding member 8, extending the service life of the winding member 8, and reducing the maintenance and replacement costs of the equipment. The evenly distributed limiting protrusions 901 cooperate with the swing member 401 to limit the relative position between the mounting frame 2 and the winding member 8. When the detection unit 3 is not in operation, it ensures that the mounting frame 2 stays stably in the appropriate position to avoid collision damage to the winding member 8 and other components caused by shaking or accidental movement of the mounting frame 2.

[0042] In some examples, the detection unit 3 is threadedly connected to the mounting frame 2. A converter lining thickness detection device also includes a mounting ring 10, which is rotatably set on the detection unit 3, and the support member 402 is hingedly set on the detection unit 3 through the mounting ring 10.

[0043] For example, Figure 3-5 As shown, the mounting ring 10 is rotatably arranged on the sleeve 301 of the detection unit 3 through two sets of bearings. The support member 402 is hinged to the mounting ring 10 through a pin shaft, thereby realizing the hinge connection with the detection unit 3.

[0044] Specifically, when the detection unit 3 descends, the support member 402 drives the swing member 401 to swing, and the support member 402 rotates around the detection unit 3 through the mounting ring 10, so that the positioning claw 403 abuts against the side wall of the furnace mouth of the converter 1. During the ascending or descending process of the detection unit 3, the mounting ring 10 can rotate freely relative to the sleeve 301, ensuring the normal operation of the support member 402 and the positioning unit 4, and adapting to the changes in different detection positions.

[0045] In some examples, the detection unit 3 includes a sleeve 301, which is threadedly connected to the mounting frame 2; the mounting ring 10 is rotatably set on the sleeve 301; the sleeve 301 is arranged to cause the detection unit 3 to descend or ascend after rotation; the sleeve 301 has a threaded through hole along the axial direction; the mounting rod 302 is threadedly connected to the threaded through hole, and both ends protrude from the threaded through hole; the detection head 303 is arranged at the lower end of the mounting rod 302; the mounting rod 302 is arranged to slide vertically in the threaded through hole after rotation, so as to make the detection head 303 move away from or close to the sleeve 301.

[0046] For example, Figure 4-5As shown, the outer wall of the sleeve 301 is processed with a trapezoidal thread, which is threadedly connected with the inner thread on the mounting frame 2. The mounting ring 10 is rotatably mounted on the outer wall of the sleeve 301. The inner wall of the threaded through hole 3011 inside the sleeve 301 is also processed with a trapezoidal thread. The outer wall of the mounting rod 302 is processed with a trapezoidal external thread matching the inner wall of the threaded through hole 3011, and the mounting rod 302 can be vertically slidably arranged in the threaded through hole 3011. The detection head 303 is a laser ranging sensor, which is mounted on one end of the mounting rod 302 close to the furnace mouth of the converter 1, and a high temperature resistant and wear-resistant protective cover is arranged on the outer periphery of the detection head 303.

[0047] Specifically, since the sleeve 301 is threadedly connected to the mounting frame 2, the rotation of the sleeve 301 drives the detection unit 3 to rise or fall. When the detection unit 3 falls to a suitable position, the mounting rod 302 is rotated, and the mounting rod 302 slides vertically in the threaded through hole 3011, so that the detection head 303 approaches or moves away from the sleeve 301. When the detection head 303 reaches the designated position in the converter, the thickness detection of the furnace lining begins.

[0048] The advantage is that the position of the detection unit 3 and the detection head 303 can be adjusted through the threaded connection between the sleeve 301 and the mounting frame 2 and the threaded sliding of the mounting rod 302 in the sleeve 301. The trapezoidal thread ensures the accuracy and stability of the adjustment, and the protective cover protects the detection head 303, so that it can still work normally in a harsh working environment, realize the measurement of the furnace lining thickness, improve the accuracy and flexibility of the detection, and meet different detection needs.

[0049] In some examples, the sleeve 301 has a first slide groove 3012, one end of which is connected to the threaded through hole; the mounting rod 302 has a snap-in hole 3021 and a disengagement groove 3022, the disengagement groove 3022 is connected to the snap-in hole 3021; ​​the mounting rod 302 also has a second slide groove 3023, the second slide groove 3023 is connected to the disengagement groove 3022, the detection unit 3 also includes a first telescopic rod 304, the first telescopic rod 304 is arranged in the first slide groove 3012; the second telescopic rod 305 is arranged in the second slide groove 3023 After the second telescopic rod 305 is extended, it forms a clamping space with the clamping hole 3021; ​​the first telescopic rod 304 and the second telescopic rod 305 are arranged so that the first telescopic rod 304 is located in the clamping space after being extended, so that the rotation of the mounting rod 302 can drive the sleeve 301 to rotate; after the positioning claw 403 abuts against the side wall of the furnace mouth of the converter 1, the rotation of the sleeve 301 is restricted; the rotation of the mounting rod 302 causes the first telescopic rod 304 to push the second telescopic rod 305 to retract, and the first telescopic rod 304 can be separated from the clamping space along the disengagement groove 3022.

[0050] For example, Figure 5-8As shown, during the descending process of the detection unit 3, the first telescopic rod 304 and the second telescopic rod 305 extend, and the first telescopic rod 304 is located in the clamping space formed by the clamping hole 3021 and the second telescopic rod 305. At this time, the rotation of the mounting rod 302 can drive the sleeve 301 to rotate. When the positioning claw 403 abuts against the side wall of the furnace mouth of the converter 1, the positioning unit 4 cannot move, so that the sleeve 301 cannot move either. At this time, the mounting rod 302 is continuously rotated, so that the first telescopic rod 304 can push (squeeze) the second telescopic rod 305 to retract, so that the first telescopic rod 304 can be separated from the clamping space along the separation groove 3022.

[0051] The advantage is that the linkage and separation of the mounting rod 302 and the sleeve 301 in different working stages are realized through the design of the first telescopic rod 304 and the second telescopic rod 305, the disengagement slot 3022, and the clamping hole 3021. This not only ensures the position adjustment of the detection unit 3 during the descent process, but also facilitates the independent operation of the detection head 303 during the detection, thereby improving the efficiency and synchronization of the detection.

[0052] In some examples, a converter lining thickness detection device also includes a rotating shaft 11, which is rotatably set on the mounting frame 2; the mounting rod 302 is arranged to be slidably set in the rotating shaft 11, and the rotating shaft 11 is used to drive the mounting rod 302 to rotate; the rotating driving member 12 is set on the mounting frame 2, and is used to drive the rotating shaft 11 to rotate.

[0053] For example, Figure 3 As shown, the rotating shaft 11 is rotatably arranged on the mounting frame 2, and the mounting rod 302 is slidably arranged in the rotating shaft 11. The outer wall of the rotating shaft 11 is processed with a keyway, and the axial direction of the mounting rod 302 has a mounting groove, and the inner wall of the mounting groove is processed with a key matching the keyway, so that the rotating shaft 11 can drive the mounting rod 302 to rotate, but the key and the keyway are matched with clearance, so that the rotating shaft 11 drives the mounting rod 302 to rotate without affecting the vertical sliding of the mounting rod 302. The rotating driving member 12 is installed on the mounting frame 2, and is a servo motor connected to the rotating shaft 11.

[0054] Specifically, the rotating drive member 12 is started to drive the rotating shaft 11 to rotate, and due to the cooperation between the key and the keyway, the rotating shaft 11 drives the mounting rod 302 to rotate, thereby realizing the vertical sliding of the mounting rod 302 in the sleeve 301 and adjusting the position of the detection head 303.

[0055] The advantage is that the arrangement of the rotating drive member 12 and the rotating shaft 11 provides power for the rotation of the mounting rod 302, realizing automatic operation. At the same time, the number of driving devices is reduced, which not only reduces the cost of the overall device, but also reduces the overall weight of the device through a reasonable structure.

[0056] In some examples, the detection unit 3 also includes a second elastic member 13, which is arranged in the first slide groove 3012, and two ends of the second elastic member 13 respectively act on the inner wall of the first slide groove 3012 and the first telescopic rod 304, and is used to push the first telescopic rod 304 so that the first telescopic rod 304 extends out of the first slide groove 3012; the third elastic member 14 is arranged in the second slide groove 3023, and two ends of the third elastic member 14 respectively act on the inner wall of the second slide groove 3023 and the second telescopic rod 305, and is used to push the second telescopic rod 305 so that the second telescopic rod 305 extends out of the second slide groove 3023.

[0057] For example, Figure 5-8 As shown, during the descent of the detection unit 3, under the action of the second elastic member 13 and the third elastic member 14, the first telescopic rod 304 and the second telescopic rod 305 remain extended, so that the mounting rod 302 and the sleeve 301 are linked. When the sleeve 301 cannot continue to descend, in order to disengage the first telescopic rod 304 from the clamping space, the mounting rod 302 is continuously rotated to overcome the elastic force of the third elastic member 14, so that the first telescopic rod 304 pushes the second telescopic rod 305 to retract, and the first telescopic rod 304 is disengaged.

[0058] The advantage is that the provision of the second elastic member 13 and the third elastic member 14 ensures that the first telescopic rod 304 and the second telescopic rod 305 are extended in a normal working state, reduces the frequent movement of the electric telescopic rod, and reduces energy consumption and the probability of failure.

[0059] In some examples, one end of the first telescopic rod 304 protruding from the second slide groove 3023 has a rounded corner; one end of the second telescopic rod 305 protruding from the second slide groove 3023 has a rounded corner.

[0060] For example, Figure 5-8 As shown, the end of the first telescopic rod 304 extending out of the second slide slot 3023 and the end of the second telescopic rod 305 extending out of the second slide slot 3023 are both processed into rounded corners by a CNC machine tool.

[0061] Specifically, during the movement of the first telescopic rod 304 and the second telescopic rod 305 , the rounded corner design enables them to contact and move when they contact or interact with other components, making the operation smoother.

[0062] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present disclosure rather than to limit it. Although the present disclosure has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present disclosure may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present disclosure, which should be included in the scope of the claims of the present disclosure.

Claims

1. A converter lining thickness detection device, characterized in that: include: A mounting frame (2), the mounting frame (2) being movably arranged above the converter (1); the mounting frame (2) being arranged to move closer to or farther from a central axis of the converter (1) after movement; A detection unit (3), the detection unit (3) being arranged to be lifted and lowered below the mounting frame (2); the detection unit (3) being arranged to be lifted and lowered to extend into or to be lifted and lowered to move out of the converter (1); Positioning units (4), the positioning units (4) being of a plurality, the plurality of positioning units (4) being connected to the mounting frame (2) and being evenly spaced along the circumference of the detection unit (3); Wherein, the positioning unit (4) comprises: A swinging member (401), one end of the swinging member (401) being hingedly arranged on the mounting frame (2); a support member (402), wherein two ends of the support member (402) are respectively hingedly connected to the detection unit (3) and the swing member (401) in a one-to-one correspondence, and the support member (402) is used to drive the swing member (401) to swing so that the other end of the swing member (401) is close to the converter (1); A positioning claw (403), the positioning claw (403) being hingedly arranged at the other end of the swinging member (401), the positioning claw (403) being used to press against the outer wall of the furnace mouth of the converter (1) under the drive of the swinging member (401) and to make the detection unit (3) coincide with the axis of the converter (1).

2. A converter lining thickness detection device according to claim 1, characterized in that: The outer end of the positioning claw (403) has a first abutment portion (4031) and a second abutment portion (4032); when the positioning claw (403) and the converter (1) are in a pressing state, the first abutment portion (4031) is located on a side of the second abutment portion (4032) close to the detection unit (3); and the positioning unit (4) further comprises: A connecting member (405), wherein the positioning claw (403) is connected to the swing member (401) via the connecting member (405), one end of the connecting member (405) being rotatably connected to the swing member (401) and the other end being hinged to the positioning claw (403); A first elastic member (404), two ends of which act on the positioning claw (403) and the connecting member (405) respectively, for pushing the first abutting portion (4031) so that the first abutting portion (4031) abuts against the side wall of the furnace opening of the converter (1) before the second abutting portion (4032).

3. The converter lining thickness detection device according to claim 1, characterized in that: The converter lining thickness detection device further comprises: A support (5), the support (5) being arranged on one side of the converter (1); a cantilever (6), the cantilever (6) being rotatably disposed on the bracket (5), the cantilever (6) being arranged to move closer to or farther away from the converter (1) after rotation; A sliding frame (7), the sliding frame (7) being arranged on the cantilever (6) in a transversely sliding manner; A winding member (8), the winding member (8) being arranged on the sliding frame (7); a chain is wound around the winding member (8), and the mounting frame (2) is connected to the chain; the mounting frame (2) is capable of moving downward and approaching the converter (1) when the winding member (8) is unwinding, or moving upward and away from the converter (1) when the winding member (8) is winding.

4. A converter lining thickness detection device according to claim 3, characterized in that: The converter lining thickness detection device further comprises: A protective cover (9), the protective cover (9) being arranged on the sliding frame (7) and used for protecting the winding member (8); the lower edge of the protective cover (9) having a plurality of limiting protrusions (901); the limiting protrusions (901) being used for abutting against the swing member (401) to limit the position of the mounting frame (2) relative to the protective cover (9).

5. The converter lining thickness detection device according to claim 1, characterized in that: The detection unit (3) is threadedly connected to the mounting frame (2), and the converter lining thickness detection device further comprises: A mounting ring (10), wherein the mounting ring (10) is rotatably arranged on the detection unit (3), and the support member (402) is hingedly arranged on the detection unit (3) via the mounting ring (10).

6. A converter lining thickness detection device according to claim 5, characterized in that: The detection unit (3) comprises: a sleeve (301), the sleeve (301) being threadedly connected to the mounting frame (2); the mounting ring (10) being rotatably arranged on the sleeve (301); the sleeve (301) being arranged to make the detection unit (3) descend or ascend after being rotated; the sleeve (301) having a threaded through hole along the axial direction; A mounting rod (302), the mounting rod (302) being threadedly connected to the threaded through hole, and both ends of the mounting rod protruding from the threaded through hole; A detection head (303), the detection head (303) being arranged at the lower end of the mounting rod (302); The mounting rod (302) is arranged to slide vertically in the threaded through hole after being rotated, so as to move the detection head (303) away from or closer to the sleeve (301).

7. A converter lining thickness detection device according to claim 6, characterized in that: The sleeve (301) has a first slide groove (3012), one end of which is connected to the threaded through hole; the mounting rod (302) has a clamping hole (3021) and a disengagement groove (3022), the disengagement groove (3022) being connected to the clamping hole (3021); the mounting rod (302) also has a second slide groove (3023), the second slide groove (3023) being connected to the disengagement groove (3022); the detection unit (3) further comprises: a first telescopic rod (304), wherein the first telescopic rod (304) is arranged in the first sliding groove (3012); a second telescopic rod (305), wherein the second telescopic rod (305) is arranged in the second sliding groove (3023), and when the second telescopic rod (305) is extended, a clamping space is formed with the clamping hole (3021); The first telescopic rod (304) and the second telescopic rod (305) are arranged such that, after the first telescopic rod (304) is extended, it is located in the clamping space, so that the rotation of the installation rod (302) can drive the sleeve (301) to rotate; after the positioning claw (403) abuts against the side wall of the furnace opening of the converter (1), the rotation of the sleeve (301) is restricted; the rotation of the installation rod (302) causes the first telescopic rod (304) to push the second telescopic rod (305) to retract, and the first telescopic rod (304) can be disengaged from the clamping space along the disengagement groove (3022).

8. The converter lining thickness detection device according to claim 7, characterized in that: The converter lining thickness detection device further comprises: a rotating shaft (11), the rotating shaft (11) being rotatably disposed on the mounting frame (2); the mounting rod (302) being arranged to be slidably disposed within the rotating shaft (11), and the rotating shaft (11) being used to drive the mounting rod (302) to rotate; A rotating drive member (12), wherein the rotating drive member (12) is arranged on the mounting frame (2) and is used to drive the rotating shaft (11) to rotate.

9. The converter lining thickness detection device according to claim 7, characterized in that: The detection unit (3) further comprises: a second elastic member (13), the second elastic member (13) being arranged in the first sliding groove (3012), and two ends of the second elastic member (13) acting on the inner wall of the first sliding groove (3012) and the first telescopic rod (304) respectively, so as to push the first telescopic rod (304) so ​​as to make the first telescopic rod (304) extend out of the first sliding groove (3012); a third elastic member (14), the third elastic member (14) being arranged in the second slide groove (3023), and two ends of the third elastic member (14) acting on the inner wall of the second slide groove (3023) and the second telescopic rod (305) respectively, for pushing the second telescopic rod (305) so that the second telescopic rod (305) extends out of the second slide groove (3023).

10. The converter lining thickness detection device according to claim 7, characterized in that: One end of the first telescopic rod (304) protruding from the second sliding groove (3023) has a rounded corner; and one end of the second telescopic rod (305) protruding from the second sliding groove (3023) has a rounded corner.

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