Steel ladle jacking device

Abstract

The utility model discloses a steel ladle jacking device, which relates to the technical field of metallurgical equipment, and comprises an outer mounting box and an air cooler equipment body, a jacking oil cylinder is arranged on the inner side of the outer mounting box, a jacking platform is fixedly arranged at the output end of the jacking oil cylinder, a steel ladle body is arranged at the upper end of the jacking platform, and the air cooler equipment body is arranged at the lower end of the jacking platform. A protective baffle is arranged on the side of the lower end of the jacking platform. According to the steel ladle jacking device, the heat insulation protection plate, the air cooling assembly, the air cooler equipment body and the like are arranged, the heat insulation protection plate is arranged on the outer side of the jacking oil cylinder, fireproof isolation is achieved, a closed structure is formed through the isolation plate, protection of a hydraulic structure is achieved, and meanwhile the air cooler equipment body is connected with a heat exchange pipe; cooling of the hydraulic structure is achieved, accidental shutdown caused by steel loss due to heating failure of the internal seal of the hydraulic structure is avoided, and safety is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of metallurgical equipment, in particular to a ladle lifting device. Background Art

[0002] The ladle is used in steel mills and foundries to receive molten steel and perform pouring operations in front of open hearth furnaces, electric furnaces or converters, and the ladle lifting device can lift the ladle to facilitate the movement of the ladle;

[0003] An air cooler is an air cooler, which is usually a heat exchanger that uses cold air to cool hot fluids. It exchanges heat with the air outside the tube through the tube wall and cooling fins and is supplied by a ventilator.

[0004] For example, announcement number CN212292668U discloses a RH refining furnace ladle lifting device, including a guide rail frame, a lifting frame, a lifting cylinder, a guide wheel assembly device and a quick-change stop mechanism. The guide rail frame is located outside the lifting cylinder, and the guide rail frame includes at least two vertically arranged guide rails. The top of the lifting cylinder is fixedly connected to the lifting frame to drive it to rise or fall. The side of the column of the lifting frame is fixed with a guide wheel assembly device, and the guide wheel assembly device includes at least two guide wheels, which abut against the guide rails of the guide rail frame. The quick-change stop mechanism includes a stop bracket installed on the guide rail frame and rotatable relative to the guide rail frame. When replacing the guide wheel bearing or the lifting cylinder, the RH refining furnace ladle lifting device does not need to be hoisted out of the deep foundation pit as a whole, which can greatly save equipment maintenance and replacement time and reduce the labor intensity of workers, while not affecting the operating efficiency of the RH refining furnace;

[0005] The ladle lifting device in this patent lacks a cooling structure, which causes the hydraulic device to be affected by the heat of the ladle. The hydraulic sealing structure and the hydraulic cylinder are easily damaged and cannot work normally, posing certain safety hazards. Utility Model Content

[0006] In view of the deficiencies in the prior art, the utility model provides a ladle lifting device which solves the problem that the lack of a cooling structure causes the hydraulic device to be affected by the heat of the ladle, the hydraulic sealing structure and the hydraulic cylinder to be easily damaged and unable to work normally, posing certain safety hazards.

[0007] To achieve the above objectives, the utility model is implemented through the following technical solutions: a ladle lifting device, comprising an external mounting box and an air cooler equipment body, a lifting cylinder is arranged on the inner side of the external mounting box, a lifting platform is fixedly installed on the output end of the lifting cylinder, a ladle body is arranged on the upper end of the lifting platform, a protective baffle is arranged on the side of the lower end of the lifting platform, an isolation plate is arranged on the upper end of the inner side of the external mounting box, a limiting assembly is fixedly installed on the lower end of the lifting platform, a heat insulation protective plate is arranged on the inner side of the external mounting box, and an air cooling assembly is arranged on the inner side of the heat insulation protective plate.

[0008] Preferably, the length of the lifting platform is greater than the outer diameter of the outer installation box, and the protective baffle is slidably connected to the outer installation box.

[0009] Preferably, the limiting assembly includes a mounting frame, two of which are disposed at the left and right ends of the jacking platform, the two mounting frames are slidably connected to the isolation plate, the output end of the jacking cylinder is slidably connected to the isolation plate, and guide wheels are disposed on the sides of the lower ends of the mounting frames, and two groups of guide wheels are disposed on the front and rear sides of the mounting frames, and each group of guide wheels is provided with two.

[0010] Preferably, a guide rail is fixedly mounted on the inner wall of the outer installation box, and two groups of the guide rails are symmetrically arranged about the vertical center line of the outer installation box, each group of the guide rails is provided with two guide rails, and the guide rails are slidably connected to the guide wheels.

[0011] Preferably, the upper end of the heat insulation protective plate is fixedly connected to the isolation plate, the lower end of the heat insulation protective plate is fixedly connected to the external installation box, the heat insulation protective plate consists of a fireproof board and a heat insulation board, and the fireproof board and the heat insulation board are fixedly connected.

[0012] Preferably, the air cooling component includes a heat exchange tube, the heat exchange tube is designed in a spiral structure, the heat exchange tube is sleeved with the lifting cylinder, and the surface of the heat exchange tube is provided with cooling fins.

[0013] Preferably, both ends of the heat exchange tube extend to the outside of the outer installation box and are connected to the air cooler device body, and a delivery pump is provided between the heat exchange tube and the air cooler device body. Beneficial Effects

[0014] The utility model provides a ladle lifting device. Compared with the prior art, it has the following beneficial effects:

[0015] The ladle lifting device is provided with a heat insulation protection plate, an air cooling component and an air cooler equipment body. The outer side of the lifting cylinder is provided with a heat insulation protection plate to achieve fire isolation, and a closed structure is formed by the isolation plate to protect the hydraulic structure. At the same time, the air cooler equipment body is used to connect the heat exchange pipe to achieve cooling of the hydraulic structure, thereby avoiding heat failure of the internal seal of the hydraulic structure, resulting in uncontrolled steel flow and causing accidental shutdown, thereby improving safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the internal structure of the utility model;

[0017] Figure 2 It is a schematic diagram of the top view structure of the utility model;

[0018] Figure 3 It is a schematic diagram of the cross-sectional structure of the heat insulation protection plate of the present utility model.

[0019] In the figure: 1. External installation box; 2. Lifting cylinder; 3. Lifting platform; 4. Ladle body; 5. Protective baffle; 6. Isolation plate; 7. Limiting assembly; 71. Mounting frame; 72. Guide wheel; 73. Guide rail; 8. Heat insulation protection plate; 81. Fireproof board; 82. Heat insulation board; 9. Air cooling assembly; 91. Heat exchange tube; 10. Air cooler equipment body. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figure 1-3The utility model provides a technical solution: a ladle lifting device, including an outer installation box 1 and an air cooler equipment body 10, a lifting cylinder 2 is arranged on the inner side of the outer installation box 1, a lifting platform 3 is fixedly installed on the output end of the lifting cylinder 2, a ladle body 4 is arranged on the upper end of the lifting platform 3, a protective baffle 5 is arranged on the side of the lower end of the lifting platform 3, the length of the lifting platform 3 is greater than the outer diameter of the outer installation box 1, the protective baffle 5 is slidably connected to the outer installation box 1, an isolation plate 6 is arranged on the upper end of the inner side of the outer installation box 1, a limiting component 7 is fixedly installed on the lower end of the lifting platform 3, and the limiting component 7 includes a mounting frame 71, and the mounting frame 71 is arranged at the left and right ends of the lifting platform 3. Two mounting frames 71 and the isolation plate 6 sliding connection, the output end of the lifting cylinder 2 is slidably connected to the isolation plate 6, a guide wheel 72 is provided on the side of the lower end of the mounting frame 71, and two groups of guide wheels 72 are provided on the front and rear sides of the mounting frame 71, and each group of guide wheels 72 is provided with two, and the inner wall of the outer mounting box 1 is fixedly installed with a guide rail 73, and the guide rail 73 is symmetrically provided with two groups about the vertical center line of the outer mounting box 1, and each group of guide rails 73 is provided with two, and the guide rail 73 is slidably connected with the guide wheel 72, and the lifting cylinder 2 is used to drive the lifting platform 3 to move up and down, so as to facilitate the lifting work of the ladle body 4, and at the same time, the guide wheel 72 is slidably connected with the guide rail 73 to realize the limit, increase a certain stability, and avoid the shaking of the ladle body 4;

[0022] The inner side of the outer installation box 1 is located on the outer side of the lifting cylinder 2 and is provided with a heat insulation protection plate 8. The upper end of the heat insulation protection plate 8 is fixedly connected to the isolation plate 6, and the lower end of the heat insulation protection plate 8 is fixedly connected to the outer installation box 1. The heat insulation protection plate 8 is composed of a fireproof plate 81 and a heat insulation plate 82. The fireproof plate 81 and the heat insulation plate 82 are fixedly connected. An air cooling component 9 is provided on the inner side of the heat insulation protection plate 8. The air cooling component 9 includes a heat exchange tube 91. The heat exchange tube 91 is designed in a spiral structure. The heat exchange tube 91 is sleeved with the lifting cylinder 2. The heat exchange tube 91 The surface is provided with heat dissipation fins, both ends of the heat exchange tube 91 extend to the outside of the outer mounting box 1 and are connected to the air cooler equipment body 10, and a delivery pump is provided between the heat exchange tube 91 and the air cooler equipment body 10. A closed structure is formed by the isolation plate 6 and the heat insulation protection plate 8 to protect the hydraulic structure. At the same time, the air cooler equipment body 10 is used to connect the heat exchange tube 91 to cool the hydraulic structure, thereby avoiding the failure of the internal seal of the hydraulic structure due to heat, resulting in uncontrolled steel flow, and causing accidental shutdown, thereby improving safety.

[0023] During operation, the ladle body 4 is installed on the lifting platform 3, and the lifting cylinder 2 is used to drive the lifting platform 3 to move up and down, so as to facilitate the lifting of the ladle body 4. At the same time, the guide wheel 72 and the guide slide rail 73 are slidably connected to achieve limiting, increase a certain degree of stability, and avoid shaking of the ladle body 4. A closed structure is formed by the isolation plate 6 and the heat insulation protection plate 8 to protect the hydraulic structure. At the same time, the air cooler equipment body 10 is used to connect the heat exchange pipe 91 to achieve cooling of the hydraulic structure, so as to avoid the failure of the internal seal of the hydraulic structure due to heat, resulting in uncontrolled flow of steel flow, and causing accidental shutdown, thereby improving safety.

[0024] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

Claims

1. A ladle lifting device, comprising an outer mounting box (1) and an air cooler device body (10), characterized in that: A lifting cylinder (2) is arranged on the inner side of the outer installation box (1), a lifting platform (3) is fixedly installed on the output end of the lifting cylinder (2), a ladle body (4) is arranged on the upper end of the lifting platform (3), a protective baffle (5) is arranged on the side of the lower end of the lifting platform (3), an isolation plate (6) is arranged on the upper end of the inner side of the outer installation box (1), a limit assembly (7) is fixedly installed on the lower end of the lifting platform (3), a heat insulation protection plate (8) is arranged on the inner side of the outer installation box (1) and located on the outer side of the lifting cylinder (2), and an air cooling assembly (9) is arranged on the inner side of the heat insulation protection plate (8).

2. A ladle lifting device according to claim 1, characterized in that: The length of the lifting platform (3) is greater than the outer diameter of the outer installation box (1), and the protective baffle (5) and the outer installation box (1) are slidably connected.

3. The ladle lifting device according to claim 1, characterized in that: The position limiting assembly (7) comprises a mounting frame (71), wherein two mounting frames (71) are disposed at the left and right ends of the jacking platform (3), the two mounting frames (71) are slidably connected to the isolation plate (6), the output end of the jacking cylinder (2) is slidably connected to the isolation plate (6), and a guide wheel (72) is disposed on the side of the lower end of the mounting frame (71), and two groups of the guide wheels (72) are disposed on the front and rear sides of the mounting frame (71), and each group of the guide wheels (72) is provided with two.

4. A ladle lifting device according to claim 3, characterized in that: A guide rail (73) is fixedly mounted on the inner wall of the outer installation box (1); two groups of the guide rails (73) are symmetrically arranged about the vertical center line of the outer installation box (1); each group of the guide rails (73) is provided with two guide rails; the guide rails (73) are slidably connected to the guide wheels (72).

5. The ladle lifting device according to claim 1, characterized in that: The upper end of the heat insulation protection plate (8) is fixedly connected to the isolation plate (6), and the lower end of the heat insulation protection plate (8) is fixedly connected to the external installation box (1). The heat insulation protection plate (8) consists of a fireproof plate (81) and a heat insulation plate (82), and the fireproof plate (81) and the heat insulation plate (82) are fixedly connected.

6. The ladle lifting device according to claim 1, characterized in that: The air cooling component (9) comprises a heat exchange tube (91), the heat exchange tube (91) is designed with a spiral structure, the heat exchange tube (91) is sleeved with the lifting cylinder (2), and the surface of the heat exchange tube (91) is provided with heat dissipation fins.

7. A ladle lifting device according to claim 6, characterized in that: Both ends of the heat exchange tube (91) extend to the outside of the outer installation box (1) and are connected to the air cooler device body (10); a delivery pump is provided between the heat exchange tube (91) and the air cooler device body (10).

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