Conductive water-cooling base of electroslag furnace crystallizer

Abstract

The conductive water-cooling base comprises a bottom plate, an assembly frame is fixedly assembled on the top of a supporting shaft, a cooling mechanism penetrating through the assembly frame is fixedly assembled in the center of the bottom plate, a copper cover plate is fixedly assembled on the top of the cooling mechanism, and a plate turnover device is assembled on the side wall of the assembly frame. The cooling mechanism is adopted to cool the copper cover plate, so that the copper cover plate can perform heat exchange and cooling on the bottom of the crystallizer, and the spirally distributed cooling pipes are adopted, so that the cooling efficiency of the crystallizer is improved, the temperature of the crystallizer is effectively reduced, and the product quality of steel ingots produced by the crystallizer is improved; according to the device, the mode that the heat insulation layer is arranged between the water inlet cavity and the water outlet cavity is adopted, the influence of cooling water with the high temperature in the water outlet cavity on cooling water with the low temperature in the water inlet cavity is effectively reduced, and the cooling water entering the cooling pipe is made to be at the low temperature so that the copper cover plate can be fully cooled.

Description

Technical Field

[0001] The utility model relates to the technical field of electric slag furnaces, in particular to a conductive water-cooling base of an electric slag furnace crystallizer. Background Art

[0002] Electroslag remelting is a refining process that completes the metal refining and shaping in one step, and remelts the metal electrodes twice through the resistance heat of molten slag. The metal electrodes are continuously melted, and the molten metal gathers into droplets, drips through the slag layer into the molten metal pool, and solidifies into steel ingots in the crystallizer. The water-cooling base is one of the most critical structural components in the electroslag furnace. Cooling the bottom of the crystallizer by a water-cooling base can improve the product quality of the steel ingot produced by the crystallizer. However, the existing water-cooling base only uses a simple cooling cycle cooling method, resulting in low cooling efficiency of the water-cooling base and poor cooling effect on the bottom of the crystallizer, which affects the product quality of the steel ingot produced by the crystallizer. To this end, we propose a conductive water-cooling base for the crystallizer of an electroslag furnace. Utility Model Content

[0003] The utility model aims to provide a conductive water-cooling base for an electroslag furnace crystallizer to solve the problems raised in the above-mentioned background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a conductive water-cooled base of an electroslag furnace crystallizer, comprising a base plate, a support shaft is fixedly mounted on the top of the base plate, an assembly frame is fixedly mounted on the top of the support shaft, a cooling mechanism penetrating the assembly frame is fixedly mounted at the center of the base plate, a copper cover plate is fixedly mounted on the top of the cooling mechanism, and a flap device is mounted on the side wall of the assembly frame.

[0005] Preferably, the cooling mechanism includes a fixed tube, which is fixedly installed at the center of the base plate, and the inner cavity of the fixed tube is provided with a water inlet cavity and a water outlet cavity, and the side walls of the fixed tube are respectively fixedly equipped with a water inlet joint and a water outlet joint connected to the water inlet cavity and the water outlet cavity, and the top of the fixed tube is fixedly connected with a cooling tube.

[0006] Preferably, the cooling pipe is distributed in a spiral shape, and the input end and the output end of the cooling pipe are connected to the water inlet cavity and the water outlet cavity respectively.

[0007] Preferably, an assembly cavity is provided in the fixed tube, the assembly cavity is located between the water inlet cavity and the water outlet cavity, and a heat insulation layer is installed in the assembly cavity.

[0008] Preferably, the flap device includes a conductive frame, the conductive frame is connected to the copper cover plate, one end of a connecting arm is connected to the conductive frame, and the other end of the connecting arm is fixedly connected to a power supply connector.

[0009] Preferably, a positioning pin is fixedly connected to the surface of the copper cover plate.

[0010] Compared with the prior art, the utility model has the following beneficial effects: a conductive water-cooled base of an electroslag furnace crystallizer adopts a cooling mechanism to cool the copper cover plate, so that the copper cover plate can exchange heat and cool the bottom of the crystallizer, and adopts a spirally distributed cooling pipe to improve the cooling efficiency of the crystallizer, effectively reduce the temperature of the crystallizer, and improve the product quality of the steel ingot produced by the crystallizer;

[0011] The device adopts the method of setting a heat insulation layer between the water inlet chamber and the water outlet chamber, which effectively reduces the influence of the cooling water with higher temperature in the water outlet chamber on the cooling water with lower temperature in the water inlet chamber, so that the cooling water entering the cooling pipe is at a lower temperature and can fully cool the copper cover plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural schematic diagram of the utility model.

[0013] Figure 2 It is a top view of the cooling mechanism of the utility model.

[0014] Figure 3 It is the front view of the cooling mechanism of the utility model.

[0015] In the figure: 1. base plate; 2. support shaft; 3. assembly frame; 4. cooling mechanism; 41. fixing pipe; 42. water inlet chamber; 43. water outlet chamber; 44. water inlet joint; 45. water outlet joint; 46. cooling pipe; 47. assembly chamber; 48. thermal insulation layer; 5. copper cover plate; 6. flap device; 61. conductive frame; 62. connecting arm; 63. power supply joint; 7. positioning pin. DETAILED DESCRIPTION

[0016] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0017] See also Figure 1 , Figure 2 and Figure 3 The utility model provides a technical solution: a conductive water-cooled base of an electroslag furnace crystallizer, comprising a base plate 1, the surface of the base plate 1 is fixedly connected with an assembly frame 3 through a support shaft 2, the support shaft 2 is made of insulating material, and the support shaft 2 can both support and fix the assembly frame 3 and play an insulating role between the assembly frame 3 and the base plate 1.

[0018] A cooling mechanism 4 penetrating the middle of the assembly frame 3 is fixedly mounted at the center of the bottom plate 1, a copper cover plate 5 is fixedly connected to the top of the cooling mechanism 4, the assembly frame 3 is used to be assembled and fixed with the bottom of the crystallizer, the copper cover plate 5 is used to fit with the bottom of the crystallizer, and the copper cover plate 5 is cooled by the cooling mechanism 4. The copper cover plate 5 can perform heat exchange cooling treatment on the bottom of the crystallizer, so that the temperature of the crystallizer is stable during operation, thereby improving the quality of the steel ingots produced by the crystallizer.

[0019] like Figure 1 As shown in , the surface of the copper cover plate 5 is fixedly equipped with positioning pins 7, and the assembly position between the copper cover plate 5 and the crystallizer is determined by the provided positioning pins 7, thereby improving the accuracy of the installation position between the copper cover plate 5 and the crystallizer.

[0020] like Figure 2 and Figure 3 As shown in, the cooling mechanism 4 includes a fixed pipe 41, which is fixedly assembled on the surface of the bottom plate 1, and the inner cavity of the fixed pipe 41 is provided with a water inlet cavity 42 and a water outlet cavity 43, and the bottom side walls of the water inlet cavity 42 and the water outlet cavity 43 are respectively fixedly connected with a water inlet joint 44 and a water outlet joint 45, and the water inlet joint 44 is used to connect with an external cooling water supply source, and the cooling water is supplied from the water inlet joint 44 to the water inlet cavity 42 through an externally arranged pump body, and the water outlet cavity 43 and the water outlet joint 45 are used to discharge the cooling water outward after the heat exchange temperature is increased, and the top side walls of the water inlet cavity 42 and the water outlet cavity 43 are respectively fixedly connected to the input end and the output end of the cooling pipe 46, and the cooling pipe 46 is spirally distributed at the bottom of the copper cover plate 5, and the copper cover plate 5 is heat exchanged and cooled by the spiral flow of cooling water in the cooling pipe 46;

[0021] An assembly cavity 47 is provided in the inner cavity of the fixed tube 41 between the water inlet cavity 42 and the water outlet cavity 43. The assembly cavity 47 is filled with a heat insulation layer 48. The heat insulation layer 48 protects the cooling water entering the water inlet cavity 42 to prevent the cooling water with increased temperature in the water outlet cavity 43 from affecting the cooling water in the water inlet cavity 42, thereby increasing the temperature of the cooling water entering the cooling pipe 46 and reducing the cooling effect of the cooling pipe 46 on the copper cover plate 5.

[0022] like Figure 1As shown in the figure, the side wall of the assembly frame 3 is equipped with a flap device 6, and the number of the flap devices 6 is four groups. The four groups of flap devices 6 are evenly distributed in a circle at the axis of the copper cover plate 5. By setting the flap device 6, the current is introduced into the copper cover plate 5 from four directions to ensure that the smelting current is evenly collected in the copper cover plate 5. The flap device 6 includes a conductive frame 61, and the conductive frame 61 is rotatably connected to one end of a connecting arm 62, and the other end of the connecting arm 62 is connected to a power supply connector 63. The power supply connector 63 is used to be electrically connected to an external power supply. The power supply to the copper cover plate 5 is completed through the cooperation of the power supply connector 63, the connecting arm 62 and the conductive frame 61.

[0023] Working principle: During use, the device assembles and fixes the copper cover plate 5 located on the top of the cooling mechanism 4 to the crystallizer. The positioning pins 7 provided can improve the accuracy of assembly and fixation between the crystallizer and the copper cover plate 5. Cooling water enters the water inlet chamber 42 and the cooling pipe 46 from the water inlet joint 44. The copper cover plate 5 is cooled by circulation in the cooling pipe 46. The copper cover plate 5 cools the crystallizer. A heat insulation layer 48 is provided between the water inlet chamber 42 and the water outlet chamber 43. The heat insulation layer 48 provided can effectively reduce the influence of the cooling water on the lower temperature cooling water in the water inlet chamber 42 after the temperature in the water outlet chamber 43 increases, thereby reducing the temperature of the cooling water entering the cooling pipe 46 and effectively improving the cooling efficiency of the cooling pipe 46 on the copper cover plate 5.

Claims

1. A conductive water-cooled base for an electroslag furnace crystallizer, comprising a base plate (1), characterized in that: A support shaft (2) is fixedly mounted on the top of the base plate (1), an assembly frame (3) is fixedly mounted on the top of the support shaft (2), a cooling mechanism (4) penetrating the assembly frame (3) is fixedly mounted at the center of the base plate (1), a copper cover plate (5) is fixedly mounted on the top of the cooling mechanism (4), and a flap device (6) is mounted on the side wall of the assembly frame (3).

2. The conductive water-cooling base of an electroslag furnace crystallizer according to claim 1, characterized in that: The cooling mechanism (4) comprises a fixed pipe (41), the fixed pipe (41) being fixedly mounted at the center of the bottom plate (1), the inner cavity of the fixed pipe (41) being provided with a water inlet cavity (42) and a water outlet cavity (43), the side walls of the fixed pipe (41) being respectively fixedly mounted with a water inlet joint (44) and a water outlet joint (45) connected to the water inlet cavity (42) and the water outlet cavity (43), and the top of the fixed pipe (41) being fixedly connected with a cooling pipe (46).

3. The conductive water-cooling base of an electroslag furnace crystallizer according to claim 2, characterized in that: The cooling pipe (46) is distributed in a spiral shape, and the input end and the output end of the cooling pipe (46) are respectively connected to the water inlet chamber (42) and the water outlet chamber (43).

4. The conductive water-cooling base of an electroslag furnace crystallizer according to claim 2, characterized in that: An assembly cavity (47) is provided in the fixed tube (41), the assembly cavity (47) is located between the water inlet cavity (42) and the water outlet cavity (43), and a heat insulation layer (48) is installed in the assembly cavity (47).

5. The conductive water-cooling base of an electroslag furnace crystallizer according to claim 1, characterized in that: The flap device (6) comprises a conductive frame (61), the conductive frame (61) is connected to the copper cover plate (5), one end of a connecting arm (62) is connected inside the conductive frame (61), and the other end of the connecting arm (62) is fixedly connected to a power supply connector (63).

6. The conductive water-cooling base of an electroslag furnace crystallizer according to claim 1, characterized in that: A positioning pin (7) is fixedly connected to the surface of the copper cover plate (5).

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