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CN-122015505-A - Welding slag ladle for containing copper slag and design method

CN122015505ACN 122015505 ACN122015505 ACN 122015505ACN-122015505-A

Abstract

The invention discloses a welding slag ladle for containing copper slag and a design method thereof, which are suitable for The slag ladle comprises a barrel, a ladle bottom, a rib plate, a trunnion and supporting legs, wherein the barrel and the ladle bottom are formed by welding high-temperature-resistant high-strength rolled plates, the thickness of the barrel is 70-100 mm, the thickness of the ladle bottom is 80-120 mm, an inclined angle beta is arranged at an angle of 11.5-21 DEG relative to the central line of a bus of the barrel, the roughness of the inner wall is controlled to be less than or equal to 12.5 mu m, so that the separation resistance of the cooled copper slag is reduced, the thickness combination, the stress distribution, the deformation and the rib plate arrangement are optimized through structural mechanics simulation, the structural strength under the high temperature and thermal cycle load is ensured to meet the requirements, the full-welding penetration weld joint is adopted, the welding reliability is ensured, and compared with the traditional casting slag ladle, the slag ladle quality is reduced by 10-15%, the slag pouring efficiency is improved, the service life is prolonged to be more than 2 times that of the original, and the slag ladle has the advantages of light structure, high bearing capacity, strong deformation resistance and good maintainability.

Inventors

  • ZHAI HENGDONG
  • LI HUAIZHONG
  • CAI ZHIMING
  • YANG ZHENGWEI

Assignees

  • 中冶宝钢技术服务有限公司

Dates

Publication Date
20260512
Application Date
20251204

Claims (10)

  1. 1. The utility model provides a hold welding cinder ladle that connects copper slag, includes barrel (1), package end (5), bears component, support component and pouring slag cooperation component, wherein barrel (1) and package end (5) are by panel welding shaping, its characterized in that: the cylinder (1) is provided with an inclined cylinder bus relative to the axis of the cylinder, and an included angle beta between the cylinder bus and the center line of the cylinder is 11.5-21 degrees; the thickness of the plate of the cylinder body (1) is 70-100 mm, and the thickness of the plate of the ladle bottom (5) is 80-120 mm; the applicable range of the length of the bus of the cylinder body is 1500-3150 mm.
  2. 2. A ladle for receiving copper slag according to claim 1, wherein the cylinder (1) is formed from a rolled sheet having a surface roughness of not more than 25 μm.
  3. 3. A welding slag ladle for containing copper slag as claimed in claim 1, wherein the welded joint between the ladle bottom (5) and the cylinder (1) is of a full-welded structure, and the weld is screened by non-destructive inspection.
  4. 4. A welding ladle for receiving copper slag as claimed in claim 1, wherein the support means comprise legs (6) at the lower part of the ladle bottom (5), the legs (6) being adapted to maintain the overall stability of the ladle during the slag loading and cooling phases.
  5. 5. A ladle as claimed in claim 1, wherein the support member and the pouring co-operating member comprise a web (4) and a trunnion (2) circumferentially arranged along the outside of the barrel (1).
  6. 6. A copper slag ladle according to any one of claims 1 to 5, wherein the volume of the ladle is in the range of 。
  7. 7. A ladle for receiving copper slag according to any one of claims 1 to 5, wherein the cylinder (1) is formed from a rolled sheet having a surface roughness of 12.5 μm.
  8. 8. A method for designing a welding slag ladle for containing copper slag, which is used for realizing the welding slag ladle for containing copper slag according to any one of claims 1-5, and is characterized by comprising the following steps: s1, acquiring slag ladle design load, slag temperature, target volume and slag pouring mode according to copper smelting working condition parameters; S2, selecting a high-temperature-resistant structural plate meeting the requirements of high-temperature strength, thermal stability and welding performance based on a material database, and determining the plate types of the cylinder (1) and the ladle bottom (5); S3, determining the thickness of the cylinder body (1) and the thickness of the ladle bottom (5) through structural mechanics simulation, so that the maximum working stress is lower than the allowable stress of the material, and the integral deformation limit value is met; s4, determining a barrel busbar inclination angle beta according to the separation condition of the cooled slag, so that slag pouring resistance is minimized; And S5, setting the sizes and the arrangement positions of the rib plates (4), the trunnions (2) and the supporting legs (6) according to simulation analysis results, forming a welding structure meeting the thermal cycle and the mechanical load, and obtaining the structural design scheme of the welding slag ladle.
  9. 9. The method for designing the welding slag ladle for containing copper slag according to claim 8, wherein the slag ladle at least comprises high-temperature load, dumping stress, thermal cycle stress and deformation through simulation and is used for determining structural parameters of the cylinder (1), the ladle bottom (5), the rib plates (4), the trunnion (2), the bearing member, the supporting member and the slag pouring matching member.
  10. 10. The method for designing a slag ladle for containing copper slag as recited in claim 8, wherein in step S3, by means of a method for manufacturing a slag ladle for containing copper slag A parameterized model is built for the slag ladle with the volume range, and automatic linkage design of the thickness, the thickness and the diameter of the ladle bottom and the length of the ladle is realized, wherein an included angle beta between a bus of the ladle and the central line of the ladle is 11.5-21 degrees, the thickness of a plate of the ladle (1) is 70-100 mm, the thickness of a plate of the ladle bottom (5) is 80-120 mm, and the application range of the bus of the ladle is 1500-3150 mm.

Description

Welding slag ladle for containing copper slag and design method Technical Field The invention belongs to the technical field of metallurgical process equipment, and particularly relates to a welding slag ladle for containing copper slag and a design method thereof. Background In nonferrous metallurgical working conditions such as copper smelting, the quality of the high-temperature copper slag and the rapid cooling and rapid heating characteristics directly influence the production safety, the slag pouring efficiency and the service life of equipment. The structural form and the material performance of the casting ladle commonly adopted at the present stage are limited by the casting process, and the casting ladle has the problems of insufficient overall strength, poor heat crack resistance, large unit volume mass, weak repairability and the like, so that the requirements of modern metallurgical enterprises on high temperature, high load and long service life are difficult to meet. In addition, the roughness of the inner wall of the casting slag ladle is higher, phenomena such as adhesion and retention are easy to occur in the slag pouring process after copper slag is cooled, slag pouring efficiency and operation safety are affected, and the structural dimension design also lacks a mature technical path for adapting to the characteristics of the copper slag. Disclosure of Invention The welding slag ladle comprises a barrel, a ladle bottom, a bearing member, a supporting member and a slag pouring matching member, wherein the barrel and the ladle bottom are formed by welding plates, an inclined barrel bus is arranged on the barrel relative to the axis of the barrel, and an included angle beta between the barrel bus and the center line of the barrel is 11.5-21 degrees; the thickness of the plate of the cylinder body is 70-100 mm, and the thickness of the plate of the cladding bottom plate is 80-120 mm; the applicable range of the length of the bus of the cylinder body is 1500-3150 mm. The technical scheme provided by the application also has the following technical characteristics: Preferably, in one embodiment of the application, the cylinder is formed from a rolled sheet having a surface roughness of not more than 25 μm. Preferably, in an embodiment of the present application, the welded joint between the bottom and the cylinder is a full-welded structure, and the welded seam is screened by nondestructive testing. Preferably, in an embodiment of the application, the support member comprises legs at the lower part of the ladle bottom for maintaining the overall stability of the slag ladle during the slag loading and cooling phases. Preferably, in an embodiment of the present application, the supporting member and the deslagging mating member comprise rib plates and trunnions circumferentially arranged along the outer side of the cylinder. Preferably, in an embodiment of the application, the volume of the slag ladle is in the range of。 Preferably, in one embodiment of the application, the cylinder is formed from a rolled sheet having a surface roughness of 12.5 μm. Preferably, in an embodiment of the present application, a method for designing a welding slag ladle for containing copper slag is used for implementing the above welding slag ladle for containing copper slag, and includes the following steps: s1, acquiring slag ladle design load, slag temperature, target volume and slag pouring mode according to copper smelting working condition parameters; s2, selecting a high-temperature-resistant structural plate meeting the requirements of high-temperature strength, thermal stability and welding performance based on a material database, and determining the types of the plate of the cylinder body and the ladle bottom; s3, determining the thickness of the cylinder body and the thickness of the bottom of the bag through structural mechanical simulation, so that the maximum working stress is lower than the allowable stress of the material, and the integral deformation limit value is met; s4, determining a barrel busbar inclination angle beta according to the separation condition of the cooled slag, so that slag pouring resistance is minimized; And S5, setting the sizes and the arrangement positions of the rib plates, the trunnions and the supporting legs according to the simulation analysis result, forming a welding structure capable of meeting the long-term thermal cycle and the mechanical load, and obtaining the structural design scheme of the welding slag ladle. Preferably, in an embodiment of the present application, the slag ladle is simulated to include at least high temperature load, dumping stress, thermal cycle stress and deformation conditions, and is used for determining structural parameters of the cylinder, ladle bottom, rib plate, trunnion, bearing member, supporting member and slag dumping mating member. Preferably, in step S3, the method comprises the steps ofA parameterized model is built for the s