CN216847507U

CN216847507U - On-line flaw detection device for blast furnace ladle

Info

Publication number: CN216847507U
Application number: CN202123371679.XU
Authority: CN
Inventors: 王平; 夏中海; 张国良; 陈亮; 王运练
Original assignee: Jiangsu Shagang Group Co Ltd; Zhangjiagang Hongchang Steel Plate Co Ltd
Current assignee: Jiangsu Shagang Group Co Ltd; Zhangjiagang Hongchang Steel Plate Co Ltd
Priority date: 2021-12-30
Filing date: 2021-12-30
Publication date: 2022-06-28
Anticipated expiration: 2031-12-30

Abstract

The utility model relates to a ladle field of detecting a flaw discloses a blast furnace ladle on-line device of detecting a flaw, comprising a frame body, the support body is rectangle frame structure, including two stands and the crossbeam of connection between two stand tops, the width of crossbeam is greater than the diameter of ladle, and the height of stand is greater than the ladle height, and two stands are equipped with positioning sensor respectively corresponding to ladle both sides middle part, are equipped with laser scanning device in the mid point department of crossbeam, the utility model discloses a radial alignment of positioning sensor and ladle reaches the purpose that makes laser scanning device and the axial of ladle align, replaces the people's eye through laser scanning device to judge that the ladle inner wall appears rolling, avoids the ladle to be burnt out because of the erosion.

Description

On-line flaw detection device for blast furnace ladle

Technical Field

The utility model relates to a ladle field of detecting a flaw, specific is a device of detecting a flaw on blast furnace ladle line.

Background

In the daily production process of a blast furnace, produced molten iron is mainly transported by a ladle on a train and a frame, and an important device for storing and transporting high-temperature liquid molten iron is the ladle, as shown in figure 1, the ladle is formed by combining the outer surface of a steel shell and a refractory lining, the refractory lining comprises a permanent layer and a working layer, the permanent layer is close to the wall of the ladle and is poured by high-alumina castable, and the working layer of the ladle is formed by building silicon carbide and high-alumina refractory bricks. In daily transfer, in the service period, due to the long-term scouring and erosion of high-temperature molten iron and the influence of repeated transfer of ladles and molten iron dumping in steel making, brick linings on a working layer may loosen or fall. Therefore, after the ladle is in service for a certain period, centralized offline flaw detection and repair are needed, and safety is ensured. The detection method mainly depends on whether the inner wall fluctuates through visual observation by workers to judge whether the brick lining of the working layer is possible to loosen or fall off, if the fluctuation is not obvious, the leak cannot be judged in time usually, if the leak cannot be found in time and accurately, the ladle is contacted with molten iron, the risk of burnthrough is generated, and therefore safety accidents are caused. Therefore, the technical problem to be solved at present is to develop a scheme capable of timely and accurately finding the corrosion degree of the refractory material of the working layer of the ladle and the loosening and falling condition of the brick lining.

Disclosure of Invention

To the above problem, the utility model provides a device of the not hard up condition of droing of the resistant material erosion degree of discovery ladle working layer and brick lining of timely accurate, concrete structure is as follows:

the utility model provides a flaw detection device on blast furnace ladle line, includes the support body, the support body is rectangle frame structure, includes two stands and connects the crossbeam between two stand tops, the width of crossbeam is greater than the diameter of ladle, and the height of stand is greater than the ladle height, and two stands are equipped with positioning sensor respectively corresponding to ladle both sides middle part, are equipped with laser scanning device in the mid point department of crossbeam.

Furthermore, the two upright posts are respectively positioned at two sides of the on-line conveying track, and the on-line conveying track is a path for returning the ladle to the blast furnace after the ladle pours molten iron in the steelmaking furnace.

Further, the distance between the laser scanning device and the top of the ladle ranges from 100 mm to 200 mm.

Further, the distance between the laser scanning device and the top of the ladle is 120 mm.

Furthermore, the positioning sensor is a laser positioning sensor, laser emitters are arranged on the two stand columns respectively, and reflectors corresponding to the laser emitters on the same side are arranged on the trunnions on the two sides of the ladle respectively.

Further, the distance between the laser emitter and the reflector on the same side is within the range of 100-200 mm.

Further, the distance between the laser emitter and the reflector on the same side is 150 mm.

Further, be equipped with the linear guide slip table that sets up along crossbeam length direction on the crossbeam, be equipped with the cylinder that sets up perpendicularly downwards on the slider of linear guide slip table, the ultimate distance that the cylinder can stretch out is less than crossbeam to the interval between the ladle, and the telescopic link tip of cylinder is equipped with the frame plate, installs on the frame plate laser scanning device.

With the prior art, the utility model has the advantages as follows:

1. the utility model discloses a radial alignment of position sensor and ladle to make the axial alignment of laser scanning device and ladle, replace the people's eye through laser scanning device to judge the ladle inner wall and appear undulant and the inner wall condition of whether appearing corroding, avoid the molten iron package to be burnt and wear, play and replace people's eye to judge, have safe height, judge accurate advantage.

2. The utility model discloses a be located respectively two stands and return to the orbital both sides of transportation of blast furnace from the steelmaking stove, play on-line and detect a flaw, need not to make the ladle roll off the production line, improved work efficiency.

3. The utility model discloses a set up linear guide slip table and cylinder on the crossbeam, make laser scanning device can control about going on the ladle mouth from top to bottom, steerable laser scanning device scans completely in to the ladle.

Drawings

FIG. 1 is a view showing the structure of the inner wall of a ladle;

fig. 2 is a structural diagram of the flaw detector.

Reference numerals:

1. a frame body; 2. a column; 3. a cross beam; 4. a positioning sensor; 5. a laser scanning device; 6. a linear guide rail sliding table; 7. a cylinder; 8. a frame plate; 9. a ladle; 10. an on-line transport track; 11. a mirror.

Detailed Description

The technical solution of the present invention will be described clearly and completely below, and it should be understood that the described embodiments are some, but not all embodiments of the present invention.

Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to has a specific orientation, is constructed and operated in a specific orientation, and thus, is not to be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example 1

As shown in fig. 2, a flaw detection device for a blast furnace ladle comprises a frame body 1, wherein the frame body 1 is of a rectangular frame structure and comprises two upright posts 2 and a cross beam 3 connected between the tops of the two upright posts 2, the two upright posts 2 are respectively positioned at two sides of an on-line transportation rail 10, the on-line transportation rail 10 is a path for returning a ladle 9 to a blast furnace after the ladle 9 pours molten iron, the width of the cross beam 3 is larger than the diameter of the ladle 9, the height of the upright posts 2 is larger than the height of the ladle 9, positioning sensors 4 are respectively arranged at the two upright posts 2 corresponding to the middle parts of two sides of the ladle 9, the positioning sensors 4 are laser positioning sensors 4, laser emitters are respectively arranged on the two upright posts 2, reflectors 11 corresponding to the laser emitters are respectively arranged on the trunnion positioned at two sides of the ladle 9, the trunnion is positioned at the middle part of the side of the ladle 9, and does not enter the steelmaking furnace when the molten iron is poured, the trunnion is therefore not at a high temperature and does not damage the mirror 11, and alignment of the laser transmitter with the mirror 11 effects radial alignment of the registration sensor 4 with the ladle 9, and hence axial alignment of the laser scanning device 5 with the ladle 9. The distance between the laser emitter and the reflector 11 on the same side is within the range of 100-200 mm, and the preferred distance is 150 mm; the middle point of the cross beam 3 is provided with a laser scanning device 5, the distance between the laser scanning device 5 and the top of the ladle 9 is within the range of 100-200 mm, and the preferable distance is 120 mm.

Be equipped with on the crossbeam 3 along the linear guide slip table 6 that 3 length direction of crossbeam set up, be equipped with the cylinder 7 that sets up perpendicularly downwards on linear guide slip table 6's the slider, the limit distance that cylinder 7 protractile is less than crossbeam 3 to the interval between the ladle 9, and the telescopic link tip of cylinder 7 is equipped with frame plate 8, installs on the frame plate 8 laser scanning device 5.

Example 2

The scanning scheme of the flaw detection device is explained in detail according to the structure, and the specific scheme is as follows:

step 1, drawing an empty ladle 9 which is newly put into production to a detection device by a train, starting to scan the initial state of each ladle 9 by a laser detection device when two positioning sensors sense that the two positioning sensors are radially superposed with the ladle 9, forming a three-dimensional model by the whole ladle 9 and an internal cavity, building a file in a computer, storing the files in a classified manner, and packaging the file as the initial model;

step 2, after the molten iron is poured out of the steel making furnace, the daily ladles 9 return to the blast furnace to load and transport the molten iron, and in the waiting process, the steel shell and the inner cavity of each ladle 9 are scanned and detected by a flaw detection device, and are compared with the initial model of each ladle 9 to confirm the integrity of refractory bricks of the steel shell and the inner cavity of each ladle 9, each ladle 9 can complete detection within 3min, special offline detection is not needed, and the time is saved;

and 3, after the scanning flaw detection is qualified, the steel plate can be pulled to a blast furnace to be subjected to iron. If the detection result is not good, the ladle 9 is taken off line to be repaired aiming at the detected problem.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.

Claims

1. The utility model provides a flaw detection device on blast furnace ladle line, its characterized in that, includes the support body, the support body is rectangle frame structure, includes two stands and connects the crossbeam between two stand tops, the width of crossbeam is greater than the diameter of ladle, and the height of stand is greater than the ladle height, and two stands are equipped with positioning sensor respectively corresponding to ladle both sides middle part, are equipped with laser scanning device in the mid point department of crossbeam.

2. The blast furnace ladle on-line flaw detection apparatus according to claim 1, wherein the two pillars are respectively located on both sides of an on-line transportation rail which is a path along which the ladle returns to the blast furnace after the ladle is poured in the steelmaking furnace.

3. The on-line flaw detection device for the blast furnace ladle according to claim 1, wherein the distance between the laser scanning device and the top of the ladle is in a range of 100 to 200 mm.

4. The blast furnace ladle on-line flaw detection apparatus according to claim 3, wherein the laser scanning apparatus is located at a distance of 120mm from the top of the ladle.

5. The on-line flaw detection device for the blast furnace ladle according to claim 1, wherein the positioning sensor is a laser positioning sensor, laser emitters are respectively provided on the two columns, and reflectors corresponding to the laser emitters on the same side are respectively provided on the trunnions located on both sides of the ladle.

6. The on-line flaw detection device for the blast furnace ladle according to claim 5, wherein a distance between the laser emitter and the mirror on the same side is in a range of 100 to 200 mm.

7. The on-line flaw detection apparatus for a blast furnace ladle according to claim 6, wherein the distance between the laser transmitter and the mirror on the same side is 150 mm.

8. The on-line flaw detection device for the blast furnace ladle according to claim 1, wherein the cross beam is provided with a linear guide rail sliding table arranged along the length direction of the cross beam, a cylinder vertically arranged downwards is arranged on a sliding block of the linear guide rail sliding table, the extendable limit distance of the cylinder is smaller than the distance between the cross beam and the ladle, a frame plate is arranged at the end part of an extension rod of the cylinder, and the laser scanning device is installed on the frame plate.