Electrode cooling device for submerged arc furnace

Abstract

An electrode cooling device for a submerged arc furnace comprises a plurality of clamping devices arranged at the front end of a lifting platform and used for fixing electrodes, annular cooling assemblies capable of rotating through water pressure are arranged on the lower portions of the clamping devices correspondingly, a water supply assembly is connected to one side corresponding to the cooling assemblies, and the water supply assembly is fixedly connected with the bottom of the lifting platform through a support. The annular cooling assembly is arranged on the lower portion of the clamp holder, a series of problems caused by blockage of the water spraying holes are fundamentally solved, cracks and deformation of the electrode due to cooling are better prevented, and safety accidents and economic losses of enterprises are further prevented.

Description

Technical Field

[0001] The utility model relates to the field of submerged arc furnaces, in particular to an electrode cooling device for submerged arc furnaces. Background Art

[0002] Submerged arc furnace is mainly used for smelting ores. It is also often used to produce ferrosilicon, ferromanganese, ferrochrome, ferrotungsten, silicon-manganese alloy and other ferroalloys. The electrodes are used to input three-phase alternating current or single-phase direct current into the electrodes, and the electrodes conduct electricity into the submerged arc furnace to form an arc and generate high temperature to promote smelting and melting. Due to the long-term use of the electrodes, they need to be cooled down.

[0003] In the existing cooling method, a fixed-point spraying method is usually used to cool the electrode. In this process of using the fixed-point spraying method, since the smoke dust of the electric arc furnace is relatively large, when the smoke dust enters the spraying device, the dust accumulates a lot and usually blocks the nozzle of the fixed-point spraying, resulting in the inability to cool the electrode, causing the electric arc furnace to shut down and unable to produce. It may also cause cracks and deformation of the electrode, which in turn leads to safety accidents and losses. Utility Model Content

[0004] In order to solve the above problems, the utility model provides an electrode cooling device for a submerged arc furnace.

[0005] The utility model is realized through the following technical solutions:

[0006] An electrode cooling device for an electric arc furnace comprises a plurality of clamps arranged at the front end of a lifting platform for fixing electrodes, a ring-shaped cooling assembly which can be rotated by water pressure is arranged at the lower part of the corresponding clamps, a water supply assembly is connected to one side of the corresponding cooling assembly, and the water supply assembly is connected and fixed to the bottom of the lifting platform through a bracket.

[0007] The annular cooling assembly comprises a water storage chamber fixed at the lower part of the clamp through a connecting rod, the lower part of the water storage chamber is rotatably connected with a spray chamber, and a sealed waterproof bearing is arranged at the connection between the spray chamber and the water storage chamber.

[0008] A transverse tangent water inlet is provided on one side of the water storage cavity.

[0009] An impeller is fixedly connected inside the spraying chamber.

[0010] A number of spray holes are respectively provided at the bottom and the inner side of the spray chamber, and the diameter of the spray hole is -mm.

[0011] The water supply assembly includes a water pipe connected and fixed to the corresponding water inlet, the water pipe is connected and fixed to the external water supply equipment, and a control valve is installed on the water pipe.

[0012] Compared with the existing technology, the beneficial effect of the utility model is that the utility model fundamentally solves a series of problems caused by the blockage of the water spray hole by arranging an annular cooling assembly at the lower part of the clamp, better prevents the electrode from cracking and deforming due to cooling, and thus prevents safety accidents and economic losses in the enterprise. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the structure of the utility model;

[0014] Figure 2 It is a schematic diagram of a partial three-dimensional structure of the utility model;

[0015] Figure 3 It is a schematic diagram of the prior art;

[0016] In the figure: lifting platform 1, clamp 2, electrode 3, connecting rod 4, water pipe 5, control valve 6, bracket

[0017] 7. water storage chamber 8, water inlet 9, impeller 10, spray chamber 11, spray hole 12, sealed waterproof bearing 13. DETAILED DESCRIPTION

[0018] The present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods:

[0019] like Figure 1 The electrode cooling device for an electric arc furnace shown in the figure includes a plurality of clamps 2 arranged at the front end of a lifting platform 1 for fixing electrodes 3, a ring-shaped cooling assembly that can be rotated by water pressure is arranged at the lower part of the corresponding clamp 2, and a water supply assembly is connected to one side of the corresponding cooling assembly, and the water supply assembly is connected and fixed to the bottom of the lifting platform 1 through a bracket 7.

[0020] The annular cooling assembly includes a water storage chamber 8 fixed to the lower part of the clamp 2 through a connecting rod 4. The lower part of the water storage chamber 8 is rotatably connected to a spray chamber 11. A sealed waterproof bearing 13 is provided at the connection between the spray chamber 11 and the water storage chamber 8.

[0021] A transversely tangential water inlet 9 is provided on one side of the water storage chamber 8 .

[0022] The impeller 10 is fixedly connected inside the spraying chamber 11 .

[0023] A plurality of spray holes 12 are respectively provided at the bottom and the inner side of the spray chamber 11. The diameter of the spray hole 12 is

[0024] 3-5mm.

[0025] The water supply assembly includes a water pipe 5 connected and fixed to the corresponding water inlet 9 , the water pipe 5 is connected and fixed to an external water supply device, and a control valve 6 is installed on the water pipe 5 .

[0026] The implementation principle of the electrode cooling device for a submerged arc furnace in the embodiment of the present application is as follows:

[0027] Before the smelting work of the submerged arc furnace, the electrode 3 is connected through the cooling assembly and fixed by the clamp 2 to prepare for smelting;

[0028] When smelting, the lifting platform 1 lowers the electrode 3 and extends it into the ore-fired furnace to work. At the same time, the water pump is started and the control valve is opened. The water pump pressurizes the external water and delivers it to the water pipe 5 and flows into the corresponding water storage chamber 8. The water entering the water storage chamber 8 will generate pressure, and the generated pressure will drive the impeller 10 to drive the spray chamber 11 to rotate. When the spray chamber 11 rotates, water will be discharged from the spray hole 12, and the water will be evenly sprayed on the surface of the electrode 3, so that the electrode 3 is cooled more evenly.

[0029] When smoke enters the water storage chamber 8 and the spray chamber 11, the dust will be stirred by the rotating impeller 10 driven by water pressure, and the smoke will be in a free state inside, and then discharged from the spray hole 12, which better prevents the smoke from clogging the spray hole 12 when it rises, and better prevents the spray hole 12 from being blocked, resulting in insufficient cooling of the electrode, cracks and deformation, thereby preventing safety accidents and economic losses in the enterprise.

[0030] The above shows and describes the basic principles, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. An electrode cooling device for a submerged arc furnace, comprising a plurality of clamps (2) arranged at the front end of a lifting platform (1) for fixing electrodes (3), characterized in that: An annular cooling assembly that can be rotated by water pressure is arranged at the lower part of the clamp (2), and a water supply assembly is connected to one side of the cooling assembly. The water supply assembly is connected and fixed to the bottom of the lifting platform (1) via a bracket (7).

2. The electrode cooling device for a submerged arc furnace according to claim 1, characterized in that: The annular cooling assembly comprises a water storage chamber (8) fixed to the lower part of the clamp (2) via a connecting rod (4); the lower part of the water storage chamber (8) is rotatably connected to a spray chamber (11); a sealed waterproof bearing (13) is provided at the connection between the spray chamber (11) and the water storage chamber (8).

3. The electrode cooling device for a submerged arc furnace according to claim 2, characterized in that: A transversely tangential water inlet (9) is provided on one side of the water storage chamber (8).

4. The electrode cooling device for a submerged arc furnace according to claim 2, characterized in that: An impeller (10) is fixedly connected inside the spray chamber (11).

5. The electrode cooling device for a submerged arc furnace according to claim 2, characterized in that: A plurality of spray holes (12) are respectively provided at the bottom and the inner side of the spray chamber (11), and the diameter of the spray hole (12) is 3-5 mm.

6. The electrode cooling device for a submerged arc furnace according to claim 1, characterized in that: The water supply assembly comprises a water pipe (5) connected and fixed to a corresponding water inlet (9); the water pipe (5) is connected and fixed to an external water supply device; and a control valve (6) is installed on the water pipe (5).

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