An electrode cooling device for electric melting furnace

Abstract

The utility model discloses an electrode cooling device for an electric melting furnace, comprising a sleeve, wherein a flange is installed at one end of the sleeve, an electrode is installed in the sleeve through the flange, an air duct is arranged between the inner wall of the sleeve and the outer side of the electrode, an exhaust box is installed on the outer side of the sleeve, and an exhaust mechanism is arranged in the exhaust box. The beneficial effects of the utility model are as follows: the utility model realizes extraction of an external nitrogen box through the exhaust mechanism and continuously releases it in the air collecting box by arranging the exhaust mechanism, an air collecting box, a vortex tube and other devices, converts the gas discharged from the air collecting box into high-pressure gas through the air pressure valve, and then separates the gas into hot gas and cold gas through the vortex tube, and cools the electrode by the cold gas, adopts air cooling technology instead of water cooling technology, and thus avoids the difficulty of achieving water sealing at high temperature.

Description

Technical Field

[0001] The utility model relates to the technical field of motor cooling, in particular to an electric melting furnace electrode cooling device. Background Art

[0002] Electrode refers to a component in electronic or electrical devices and equipment, used as the two ends for inputting or outputting current in a conductive medium (solid, gas, vacuum or electrolyte solution). The pole that inputs current is called the anode or positive pole, and the pole that releases current is called the cathode or negative pole. Metal molybdenum has very superior performance as an electrode material for glass electric melting furnaces. It is not only resistant to high temperatures, but also resistant to corrosion and erosion. At the same time, it has a lower price than platinum. At present, metal molybdenum is widely used in glass electric melting.

[0003] Existing metal molybdenum protection devices are usually cooled by water cooling. For example, in Chinese utility model patents, such as CN217677274U, the utility model discloses an anti-oxidation device for horizontal electrodes of borosilicate glass electric melting furnaces. The new device has the characteristics of being able to cool the electrodes and prevent air from contacting the high-temperature parts of the electrodes. The electrodes can also be cooled by circulating water cooling, and nitrogen can be introduced to isolate the air to prevent the parts of the electrodes with excessively high temperatures from being oxidized by air under water cooling conditions.

[0004] The temperature of metal molybdenum after power is applied is generally several hundred degrees Celsius or higher. In order to prevent the metal molybdenum from coming into contact with water, sealed pipes are usually used to dissipate heat from the metal molybdenum using heat transfer. However, high temperatures can cause the material to expand thermally, leading to deformation of the seal, etc., making it difficult to maintain the seal and posing a risk of leakage. Utility Model Content

[0005] The utility model aims to solve the problems in the background technology and proposes an electric melting furnace electrode cooling device.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] An electrode cooling device for an electric melting furnace comprises a sleeve, a flange is installed at one end of the sleeve, an electrode is installed in the sleeve through the flange, an air duct is arranged between the inner wall of the sleeve and the outer side of the electrode, an exhaust box is installed on the outer side of the sleeve, an exhaust mechanism is arranged in the exhaust box, and the exhaust mechanism is connected to an external nitrogen box, an air collecting box is fixedly installed on the outer side of the sleeve, and the exhaust box is connected to the air collecting box, the air collecting box is connected to a vortex tube through an air pressure valve, the vortex tube is respectively connected to a hot air pipe and a cold air pipe, and the cold air pipe is connected to the air duct, an exhaust pipe is installed on the outer side of the sleeve, and the exhaust pipe is away from the cold air pipe and connected to the air duct.

[0008] Preferably, the vacuum mechanism includes a motor, and the motor is fixedly mounted on the outside of the vacuum box, the output shaft of the motor passes through the vacuum box and is connected to a reciprocating screw, a screw sleeve is threadedly connected to the reciprocating screw, a piston is installed on the screw sleeve through a plurality of extension columns, and the piston and the baffle are both slidably connected in the vacuum box.

[0009] Preferably, the air extraction box is connected to an external nitrogen box through an air inlet pipe, and the air extraction box is connected to an air collecting box through a connecting pipe, and both the air inlet pipe and the connecting pipe are equipped with a one-way valve.

[0010] Preferably, a baffle is fixedly mounted on one end of the reciprocating screw away from the motor, and the diameter of the baffle is greater than the diameter of the reciprocating screw.

[0011] Preferably, the screw sleeve and the piston are both square in shape.

[0012] Preferably, the vortex tube is made of stainless steel.

[0013] Compared with the prior art, the utility model has the following beneficial effects: the utility model realizes the extraction of nitrogen from the external box by the exhaust mechanism and continuously releases it in the box by arranging the exhaust mechanism, the gas collected in the box is converted into high-pressure gas by the air pressure valve, and then the gas is separated into hot gas and cold gas by the vortex tube, and the electrode is cooled by the cold gas. Air cooling technology is used instead of water cooling technology, thereby avoiding the difficulty of achieving water sealing at high temperature. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a structural schematic diagram of an electric melting furnace electrode cooling device proposed by the utility model;

[0015] Figure 2 This is a schematic diagram of the air duct connection structure of an electric melting furnace electrode cooling device proposed by the utility model;

[0016] Figure 3 The utility model is a schematic structural diagram of an electric melting furnace electrode cooling device.

[0017] In the figure: 1 sleeve, 2 electrode, 3 exhaust box, 4 motor, 5 intake pipe, 6 connecting pipe, 7 air collecting box, 8 vortex tube, 9 cold air pipe, 10 hot air pipe, 11 flange, 12 exhaust pipe, 13 air duct, 14 reciprocating screw, 15 screw sleeve, 16 piston, 17 baffle. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0019] Reference Figure 1-3 , an electrode cooling device for an electric melting furnace, comprising a sleeve 1, a flange 11 is installed at one end of the sleeve 1, an electrode 2 is installed in the sleeve 1 through the flange 11, an air duct 13 is provided between the inner wall of the sleeve 1 and the outer side of the electrode 2, an exhaust box 3 is installed on the outer side of the sleeve 1, the sleeve 1 is conveniently fixed to the outer side of the electrode 2 through the arrangement of the flange 11, and the air duct 13 is convenient for cooling air to pass through;

[0020] An exhaust mechanism is provided in the exhaust box 3, and the exhaust mechanism is connected to the external nitrogen box. The exhaust mechanism includes a motor 4, and the motor 4 is fixedly installed on the outside of the exhaust box 3. The output shaft of the motor 4 passes through the exhaust box 3 and is connected to a reciprocating screw 14. A baffle 17 is fixedly installed at one end of the reciprocating screw 14 away from the motor 4, and the diameter of the baffle 17 is greater than the diameter of the reciprocating screw 14. A screw sleeve 15 is threadedly connected to the reciprocating screw 14, and a piston 16 is installed on the screw sleeve 15 through a plurality of extension columns, and the piston 16 and the baffle 17 are both slidably connected in the air extraction box 3, and the shapes of the screw sleeve 15 and the piston 16 are both square. It should be noted that the reciprocating screw 14 is driven to rotate by starting the motor 4, and then the piston 16 is driven to slide back and forth by the screw sleeve 15 to realize the operation of exhausting and injecting gas. At the same time, the baffle 17 prevents the screw sleeve 15 from being separated from the reciprocating screw 14, and the square setting is convenient for limiting the reciprocating screw 14 through the inner wall of the air extraction box 3, so that it cannot rotate, and can only realize reciprocating sliding;

[0021] The air extraction box 3 is connected to the external nitrogen box through the air intake pipe 5, and the air extraction box 3 is connected to the air collecting box 7 through the connecting pipe 6. Both the air intake pipe 5 and the air collecting box 7 are equipped with a one-way valve. It should be noted that the gas inflow direction of the air intake pipe 5 and the connecting pipe 6 is fixed, and the nitrogen outside is received through the air intake pipe 5 and filled into the air extraction box 3, and the nitrogen in the air extraction box 3 is filled into the air collecting box 7 through the connecting pipe 6;

[0022] An air collecting box 7 is fixedly installed on the outside of the sleeve 1, and the air exhaust box 3 is connected to the air collecting box 7. The air collecting box 7 is connected to a vortex tube 8 through an air pressure valve, and the gas entering the vortex tube 8 is high-pressure gas. The material of the vortex tube 8 is stainless steel to avoid corrosion by nitrogen. The vortex tube 8 is respectively connected to a hot air pipe 10 and a cold air pipe 9, and the cold air pipe 9 is connected to an air duct 13. An exhaust pipe 12 is installed on the outside of the sleeve 1, and the exhaust pipe 12 is away from the cold air pipe 9 and connected to the air duct 13. It should be noted that the vortex tube 8 can separate nitrogen into hot air and cold air, and the cold air is discharged into the air duct 13 to cool the electrode 2.

[0023] When the utility model is used, the sleeve 1 is firstly sleeved on the outside of the electrode 2, and then the sleeve 1 is fixed by the flange 11, and then the sleeve 1 is connected with the external nitrogen box through the air inlet pipe 5. After the connection is completed, the motor 4 is started, and the reciprocating screw 14 is driven by the motor 4 to rotate, and then the piston 16 is driven to slide back and forth through the arrangement of the screw sleeve 15 and the plurality of extension columns, so as to realize the operation of gas injection and gas extraction, so that the nitrogen in the external nitrogen box is extracted and continuously filled into the gas collecting box 7;

[0024] The air collecting box 7 is connected to the vortex tube 8 through an air pressure valve. When the air pressure in the air collecting box 7 exceeds the threshold of the air pressure valve, it becomes high-pressure gas and enters the vortex tube 8. The gas is then divided into cold air and hot air by the vortex tube 8, and enters the cold air pipe 9 and the hot air pipe 10 respectively. The cold air pipe 9 is connected to the air duct 13 to cool the electrode 2. At the same time, the nitrogen can also isolate oxygen, further reducing the oxidation of the electrode 2.

[0025] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An electrode cooling device for an electric melting furnace, comprising a sleeve (1), characterized in that: A flange (11) is installed at one end of the sleeve (1), and an electrode (2) is installed in the sleeve (1) through the flange (11). An air duct (13) is provided between the inner wall of the sleeve (1) and the outer side of the electrode (2). An air pumping box (3) is installed on the outer side of the sleeve (1), and an air pumping mechanism is provided in the air pumping box (3), and the air pumping mechanism is connected to an external nitrogen box. An air collecting box (7) is fixedly installed on the outer side of the sleeve (1), and the air pumping box (3) is connected to the air collecting box (7). The air collecting box (7) is connected to a vortex tube (8) through an air pressure valve, and the vortex tube (8) is respectively connected to a hot air pipe (10) and a cold air pipe (9), and the cold air pipe (9) is connected to the air duct (13). An exhaust pipe (12) is installed on the outer side of the sleeve (1), and the exhaust pipe (12) is away from the cold air pipe (9) and is connected to the air duct (13).

2. The electric melting furnace electrode cooling device according to claim 1, characterized in that: The air extraction mechanism comprises a motor (4), and the motor (4) is fixedly mounted on the outside of the air extraction box (3), the output shaft of the motor (4) passes through the air extraction box (3) and is connected to a reciprocating screw (14), a screw sleeve (15) is threadedly connected to the reciprocating screw (14), a piston (16) is mounted on the screw sleeve (15) through a plurality of extension columns, and the piston (16) and the baffle (17) are both slidably connected in the air extraction box (3).

3. The electric melting furnace electrode cooling device according to claim 2, characterized in that: The air extraction box (3) is connected to an external nitrogen box via an air inlet pipe (5), and the air extraction box (3) is connected to an air collecting box (7) via a connecting pipe (6). Both the air inlet pipe (5) and the connecting pipe (6) are provided with a one-way valve.

4. The electric melting furnace electrode cooling device according to claim 3, characterized in that: A baffle (17) is fixedly mounted on one end of the reciprocating screw (14) away from the motor (4), and the diameter of the baffle (17) is greater than the diameter of the reciprocating screw (14).

5. The electric melting furnace electrode cooling device according to claim 4, characterized in that: The screw sleeve (15) and the piston (16) are both square in shape.

6. The electric melting furnace electrode cooling device according to claim 5, characterized in that: The material of the vortex tube (8) is stainless steel.

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