Metallurgical furnace slag layer thickness detection device and metallurgical furnace system

Abstract

The utility model discloses a metallurgical furnace slag layer thickness detection device and a metallurgical furnace system, the device comprises a furnace top and a door frame, a detection hole is arranged on the top surface of the furnace top in a penetrating manner, the door frame is fixedly arranged on the top surface of the furnace top above the detection hole, and a screw rod elevator is fixedly arranged on the top surface of the door frame. And a connecting screw rod is mounted at the output end of the screw rod lifting machine. The beneficial effects are that the scale and the wide-angle camera are adopted, when the thickness of the slag is detected, the lead screw elevator drives the connecting lead screw to descend so as to drive the attachment rod to move downwards to penetrate through the detection hole and enter molten metal, the slag is attached to the surface of the attachment rod, then the lead screw elevator drives the connecting lead screw to move upwards, and the attachment rod is pulled out, so that the thickness of the slag is detected. After the attachment rod is reset, the wide-angle camera shoots the attachment rod and the scale, the slag thickness can be directly measured by directly comparing the slag attachment height measured by the scale, the trouble of image processing and calculation is omitted, detection is more visual and reliable, and the structure is simpler and more practical.

Description

Technical Field

[0001] The utility model relates to the technical field of smelting, in particular to a metallurgical slag layer thickness detection device and a metallurgical furnace system. Background Art

[0002] The molten pool in the furnace is divided into two layers. The upper layer is the slag layer formed after the material is melted, and the lower layer is the molten metal layer. The thickness of the slag layer determines the discharge timing of the slag and metal. On the top of the high-temperature furnace, the sensor needs to be manually operated. The detection hole of the furnace is opened, the sensor is inserted and then taken out, and the thickness of the slag layer is measured by manually observing and recording the values.

[0003] After searching, it was found that the publication number is CN219776333U, and the name is Metallurgical Slag Layer Thickness Detection Device and Metallurgical Furnace System. The application proposes that manual measurement requires the detection sensor to be operated in a high temperature environment, which is dangerous. Manual measurement and recording will result in differences and inaccuracies. The labor intensity of operation and maintenance personnel is high, and there are certain safety risks. The slag thickness is obtained by taking photos of the attachment rods with an industrial camera, and then performing computer analysis and calculation to obtain the slag thickness, which is safer. However, in actual use, it is necessary to establish a computer analysis and processing system that matches the industrial camera. Although the measurement method is detected, the system research and development and equipment costs are high, the calculation is relatively complicated, and it is not simple and efficient enough, and further improvements can be made. At the same time, the application uses a vibrator to clean the slag, and the vibrator does not vibrate comprehensively, making it difficult to ensure the complete detachment of the slag, and the vibration generated by the vibrator is also likely to affect the stability of the structure, which can also be further improved.

[0004] Currently, no effective solution has been proposed for the problems in the related technologies. Utility Model Content

[0005] 1. Technical issues to be resolved

[0006] In view of the deficiencies in the prior art, the utility model provides a metallurgical slag layer thickness detection device and a metallurgical furnace system, which have the advantages of intuitive detection, simple structure, stable cleaning and high efficiency, thereby solving the problems in the above-mentioned background technology.

[0007] (II) Technical solution

[0008] In order to achieve the above advantages of intuitive detection, simple structure, stable cleaning and high efficiency, the specific technical solutions adopted by the utility model are as follows:

[0009] A device for detecting the thickness of a metallurgical slag layer comprises a furnace roof and a gantry, wherein a detection hole is formed through the top surface of the furnace roof, and a gantry is fixedly installed on the top surface of the furnace roof above the detection hole, and a screw lift is fixedly installed on the top surface of the gantry, a connecting screw is installed on the output end of the screw lift, and an attachment rod is fixedly installed on the bottom surface of the connecting screw, and the attachment rod is located directly above the detection hole, a scale is fixedly suspended on one side of the attachment rod on the top surface of the gantry, and a wide-angle camera is fixedly installed on the inner side of the gantry in front of the attachment rod and the scale through a cantilever frame, a hydraulic rod is fixedly installed on the bottom side wall of the gantry, and a scraper ring is fixedly installed on the other end of the piston rod of the hydraulic rod, and the bottom surface of the scraper ring is in sliding contact with the top surface of the furnace roof.

[0010] Furthermore, the inner diameter of the scraper ring is the same as the outer diameter of the attachment rod, and the scraper ring is distributed on both sides of the attachment rod, and the scraper ring is a semicircular ring structure.

[0011] Furthermore, the scraper ring is made of steel, and the hardness of the scraper ring is greater than the hardness of the attachment rod.

[0012] Furthermore, a guide rod is fixedly mounted on the outer wall of the scraper ring, and the guide rod passes through the door frame and is slidably connected to the door frame.

[0013] Furthermore, the diameter of the detection hole is larger than the diameter of the attachment rod.

[0014] A metallurgical furnace system comprises a metallurgical slag layer thickness detection device and a metallurgical furnace.

[0015] (III) Beneficial effects

[0016] Compared with the prior art, the utility model provides a metallurgical slag layer thickness detection device and a metallurgical furnace system, which have the following beneficial effects:

[0017] (1) The utility model adopts a ruler and a wide-angle camera. When the slag thickness is detected, the screw lift drives the connecting screw to descend, thereby driving the attachment rod to move down through the detection hole and into the molten metal. The slag adheres to the surface of the attachment rod. Then, the screw lift drives the connecting screw to move up, pulling the attachment rod out. After the attachment rod is reset, the wide-angle camera shoots the attachment rod and the ruler. The slag thickness can be directly measured by directly comparing the slag attachment height measured by the ruler, eliminating the trouble of image processing and calculation. The detection is more intuitive and reliable, and the structure is simpler and more practical.

[0018] (2) The utility model adopts a scraper ring. When repeated inspection is required, the staff can start the extension of the hydraulic rod to push the inner wall of the scraper ring to abut against the outer wall of the attachment rod. When the screw lift drives the attachment rod to move downward, the inner wall of the scraper ring can scrape off the slag attached to the surface of the attachment rod, completing rapid cleaning. The scraper ring is used to scrape off the slag, avoiding the noise and vibration caused by hammer vibration, which is more stable and reliable. At the same time, the cleaning of the attachment rod is more comprehensive and cleaner, thereby improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 It is a structural schematic diagram of a metallurgical slag layer thickness detection device proposed by the utility model;

[0021] Figure 2 This is an enlarged view of node A of a metallurgical slag layer thickness detection device proposed by the utility model;

[0022] Figure 3 It is a front view of a metallurgical slag layer thickness detection device proposed by the utility model.

[0023] In the figure:

[0024] 1. Furnace roof; 2. Attachment rod; 3. Screw lift; 4. Connecting screw; 5. Ruler; 6. Wide-angle camera; 7. Cantilever; 8. Inspection hole; 9. Door frame; 10. Scraper ring; 11. Hydraulic rod; 12. Guide rod. DETAILED DESCRIPTION

[0025] To further illustrate each embodiment, the present invention provides drawings, which are part of the disclosure of the present invention and are mainly used to illustrate the embodiments. They can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, ordinary technicians in the field should be able to understand other possible implementation methods and advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are generally used to represent similar components.

[0026] According to an embodiment of the utility model, a metallurgical slag layer thickness detection device and a metallurgical furnace system are provided.

[0027] The present invention is now further described in conjunction with the accompanying drawings and specific implementation methods. Figure 1-3As shown, a metallurgical slag layer thickness detection device according to an embodiment of the utility model comprises a furnace roof 1 and a gantry 9, a detection hole 8 is opened through the top surface of the furnace roof 1, and a gantry 9 is fixedly installed on the top surface of the furnace roof 1 above the detection hole 8, and a screw lift 3 is fixedly installed on the top surface of the gantry 9, and a connecting screw 4 is installed on the output end of the screw lift 3, which is a common lifting structure, the length of the connecting screw 4 is greater than the length of the attachment rod 2, the height of the gantry 9 is greater than the length of the attachment rod 2, and the attachment rod 2 is fixedly installed on the bottom surface of the connecting screw 4, and the attachment rod 2 is located directly above the detection hole 8, a scale 5 is fixedly hoisted on one side of the attachment rod 2 on the inner top surface of the gantry 9, and a wide-angle camera 6 is fixedly installed on the inner side of the gantry 9 in front of the attachment rod 2 and the scale 5 through a cantilever 7. A hydraulic rod 11 is fixedly installed on the bottom side wall of the door frame 9, and a scraper ring 10 is fixedly installed on the other end of the piston rod of the hydraulic rod 11, and the bottom surface of the scraper ring 10 is in sliding contact with the top surface of the furnace roof 1. When the slag thickness is detected, the screw lifter 3 drives the connecting screw rod 4 to descend, thereby driving the attachment rod 2 to move down through the detection hole 8 and enter the molten metal, and the slag is attached to the surface of the attachment rod 2. Subsequently, the screw lifter 3 drives the connecting screw rod 4 to move upward, pulling the attachment rod 2 out. After the attachment rod 2 is reset, the wide-angle camera 6 shoots the attachment rod 2 and the ruler 5. The slag thickness can be directly measured by directly comparing the slag attachment height measured by the ruler 5, which saves the trouble of image processing and calculation, makes the detection more intuitive and reliable, and the structure is simpler and more practical.

[0028] In one embodiment, the inner diameter of the scraper ring 10 is the same as the outer diameter of the attachment rod 2, and the scraper ring 10 is distributed on both sides of the attachment rod 2, and the scraper ring 10 is a semi-circular ring structure, wherein the scraper ring 10 is made of steel, and the hardness of the scraper ring 10 is greater than the hardness of the attachment rod 2. When repeated inspection is required, the staff can start the hydraulic rod 11 to extend, and push the inner wall of the scraper ring 10 to abut against the outer wall of the attachment rod 2. When the screw lift 3 drives the attachment rod 2 to move downward, the inner wall of the scraper ring 10 can scrape off the slag attached to the surface of the attachment rod 2 to complete rapid cleaning. The scraper ring 10 is used to scrape the slag, which avoids the noise and vibration caused by hammering vibration, is more stable and reliable, and at the same time, the cleaning of the attachment rod 2 is more comprehensive and cleaner, thereby improving work efficiency.

[0029] In one embodiment, a guide rod 12 is fixedly mounted on the outer wall of the scraper ring 10, and the guide rod 12 passes through the gantry 9 and is slidably connected to the gantry 9. The guide rod 12 guides the movement of the scraper ring 10 and prevents the piston rod of the hydraulic rod 11 from being damaged by shear force.

[0030] In one embodiment, the diameter of the detection hole 8 is larger than the diameter of the attachment rod 2, so as to facilitate the attachment rod 2 to enter and exit.

[0031] A metallurgical furnace system includes a metallurgical slag layer thickness detection device and a metallurgical furnace. The top of the metallurgical furnace is a furnace top 1, which is a common structure in the art and is not shown in the figure.

[0032] Working principle:

[0033] When the slag thickness is detected, the screw lift 3 drives the connecting screw 4 to descend, thereby driving the attachment rod 2 to move downward through the detection hole 8 and into the molten metal, and the slag adheres to the surface of the attachment rod 2. Subsequently, the screw lift 3 drives the connecting screw 4 to move upward, pulling the attachment rod 2 out. After the attachment rod 2 is reset, the wide-angle camera 6 shoots the attachment rod 2 and the ruler 5. The slag thickness can be directly measured by directly comparing the slag attachment height measured by the ruler 5, which saves the trouble of image processing and calculation, and the detection is more intuitive and reliable. The structure is also simpler and more practical. At the same time, when repeated inspection is needed, the staff can start the extension of the hydraulic rod 11 to push the inner wall of the scraper ring 10 to abut against the outer wall of the attachment rod 2. When the screw lifter 3 drives the attachment rod 2 to move downward, the inner wall of the scraper ring 10 can scrape off the slag attached to the surface of the attachment rod 2 to complete the rapid cleaning. The scraper ring 10 is used to scrape the slag, which avoids the noise and vibration caused by hammering vibration, is more stable and reliable, and at the same time, the cleaning of the attachment rod 2 is more comprehensive and cleaner, thereby improving work efficiency.

[0034] In the present utility model, unless otherwise clearly stipulated and limited, the terms such as "installation", "setting", "connection", "fixation" and "screw-on" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the utility model according to the specific circumstances.

[0035] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A metallurgical slag layer thickness detection device, characterized in that: The invention comprises a furnace top (1) and a door frame (9), wherein a detection hole (8) is formed through the top surface of the furnace top (1), and a door frame (9) is fixedly installed on the top surface of the furnace top (1) above the detection hole (8), and a screw rod lifter (3) is fixedly installed on the top surface of the door frame (9), and a connecting screw rod (4) is installed at the output end of the screw rod lifter (3), and an attachment rod (2) is fixedly installed on the bottom surface of the connecting screw rod (4), and the attachment rod (2) is located directly above the detection hole (8). A scale (5) is fixedly mounted on the inner top surface of the gantry (9) at one side of the attachment rod (2), and a wide-angle camera (6) is fixedly mounted on the inner side of the gantry (9) in front of the attachment rod (2) and the scale (5) through a cantilever (7), a hydraulic rod (11) is fixedly mounted on the bottom side wall of the gantry (9), and a scraper ring (10) is fixedly mounted on the other end of the piston rod of the hydraulic rod (11), and the bottom surface of the scraper ring (10) is in sliding contact with the top surface of the furnace roof (1).

2. A metallurgical slag layer thickness detection device according to claim 1, characterized in that: The inner diameter of the scraper ring (10) is the same as the outer diameter of the attachment rod (2), and the scraper ring (10) is distributed on both sides of the attachment rod (2), and the scraper ring (10) is a semi-circular ring structure.

3. A metallurgical slag layer thickness detection device according to claim 1, characterized in that: The scraper ring (10) is made of steel, and the hardness of the scraper ring (10) is greater than the hardness of the attachment rod (2).

4. A metallurgical slag layer thickness detection device according to claim 1, characterized in that: A guide rod (12) is fixedly mounted on the outer wall of the scraper ring (10), and the guide rod (12) passes through the door frame (9) and is slidably connected to the door frame (9).

5. The metallurgical slag layer thickness detection device according to claim 1, characterized in that: The diameter of the detection hole (8) is larger than the diameter of the attachment rod (2).

6. A metallurgical furnace system, characterized in that: The invention comprises a metallurgical slag layer thickness detection device and a metallurgical furnace as described in claims 1-5.

Images