Power frequency furnace inductor replacing device

Abstract

The utility model discloses a replacement device for a power frequency furnace inductor, which belongs to the technical field of power frequency furnace maintenance, solves the problem that the replacement of the power frequency furnace inductor is not accurate and quick, and comprises a power frequency furnace inductor and a mounting bracket, two C-shaped grooves are formed in the side surface of the power frequency furnace inductor, and a base trolley is arranged at the bottom of the power frequency furnace inductor; two triangular reinforcing ribs are vertically arranged at the side part of the mounting bracket, the tops of the reinforcing ribs are connected with a horizontal hydraulic oil cylinder, a universal connector is arranged at the pushing end of the horizontal hydraulic oil cylinder, an angular contact ball bearing is arranged at the shaft position of the universal connector, and the angular contact ball bearing is clamped with the C-shaped groove; two rails are arranged at the bottom of the mounting support in the same direction as the horizontal hydraulic oil cylinders, vertical hydraulic oil cylinders are symmetrically arranged on the two sides of the rails, and the base trolley is slidably arranged on the rails. According to the utility model, the operation of quickly and accurately replacing and installing the inductor of the power frequency furnace can be realized, the danger coefficient in the operation process is reduced, and the butt joint is more accurate and quicker.

Description

Technical Field

[0001] The utility model belongs to the technical field of power frequency furnace maintenance, and in particular relates to a device for replacing an inductor of a power frequency furnace. Background Art

[0002] The demand for copper is cyclical, with peak and off-season periods. During the off-season, prolonged heat preservation in power-frequency furnaces can lead to increased energy consumption, oxygen absorption by the molten copper, and molten channel fractures. This necessitates furnace shutdowns for maintenance, servicing, and repair of electrical, mechanical, hydraulic, and transformer equipment. Long-term copper smelting in power-frequency furnaces can lead to impurity precipitation, oxygen absorption by the molten copper in the channel, and solidification defects (such as pores, cracks, and grain segregation). This can easily lead to molten channel fractures when the furnace is restarted, necessitating the recasting of the induction body (the lower furnace body) and the replacement of the molten channel.

[0003] Due to the low success rate of secondary startup of the power frequency furnace, the molten groove of the power frequency furnace induction body is prone to breakage, and the furnace needs to be recast and a new induction body needs to be replaced. The installation of the upper furnace body and the induction body requires fast docking speed, precise positioning, and firm bolts to prevent the lower furnace body sealing material from solidifying, resulting in copper leakage in the gap between the upper furnace body and the induction body during the production process, which is prone to safety accidents; at the same time, the overall disassembly and installation of the power frequency furnace is labor-intensive, the operation risk factor is high, the time consumption is long, and the positioning difficulty factor is high, so only the induction body is removed, and the removal and installation working space of the induction body is small, the working environment light is poor, the installation accuracy requirements are high, and the installation docking speed requirements are precise and fast. Therefore, a device that can quickly and accurately replace and install the power frequency furnace induction body is needed. Utility Model Content

[0004] The purpose of the utility model is to provide a device for replacing an inductor of an industrial frequency furnace, so as to solve the problem that the inductor of the industrial frequency furnace cannot be replaced accurately and quickly.

[0005] The technical solution of the utility model is: a device for replacing an industrial frequency furnace inductor, comprising an industrial frequency furnace inductor and a mounting bracket, two C-shaped grooves being provided on the side of the industrial frequency furnace inductor, and a base trolley being provided at the bottom of the industrial frequency furnace inductor; two triangular reinforcing ribs are vertically provided on the side of the mounting bracket, the top of the reinforcing ribs is connected with a horizontal hydraulic cylinder, a universal joint is provided at the top pushing end of the horizontal hydraulic cylinder, the end of the universal joint is a universal joint shaft, an angular contact ball bearing is provided at the universal joint shaft, and the angular contact ball bearing is clamped with the C-shaped groove; two tracks are provided at the bottom of the mounting bracket in the same direction as the horizontal hydraulic cylinder, vertical hydraulic cylinders are symmetrically provided on both sides of the track, and the base trolley is slidably set on the track.

[0006] As a further improvement of the present invention, a mounting positioning pin is provided on the top of the power frequency furnace induction body; and a lifting lug is provided on the side of the power frequency furnace induction body.

[0007] As a further improvement of the present invention, grid reinforcement ribs are provided on the base trolley.

[0008] The beneficial effects of the present invention are as follows: Utilizing the present invention facilitates the rapid and precise replacement and installation of an inductor for a power-frequency furnace. The present invention utilizes the lifting action of hydraulic devices arranged in horizontal and vertical directions, in conjunction with C-shaped grooves, mounting brackets, and a base trolley provided on the side of the inductor, to enable rapid and precise replacement and installation of the inductor. The present invention has the advantages of a compact structure, safety and reliability, easy maintenance, simple operation, precise positioning, and fast installation. It reduces the risk factor during operation, allows for more precise and rapid docking, and effectively prevents docking failures caused by solidification of the separator. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0010] Figure 2 This is a schematic diagram of the structure of the mounting bracket in the present utility model;

[0011] Figure 3 This is a schematic diagram of the structure of the power frequency furnace induction body of the utility model;

[0012] Figure 4 This is a schematic structural diagram of the base trolley in the utility model;

[0013] Figure 5 This is a schematic diagram of the structure of the horizontal hydraulic cylinder in the utility model;

[0014] Figure 6 It is a structural diagram of the vertical hydraulic cylinder in the utility model.

[0015] In the figure: 1-mounting bracket; 11-horizontal cylinder base plate; 12-horizontal positioning threaded hole; 13-rail; 14-vertical cylinder base plate; 15-vertical positioning threaded hole; 16-reinforcement rib; 2-power frequency furnace inductor; 21-mounting positioning pin; 22-lifting ear; 23-C-shaped slot; 3-base trolley; 31-grid reinforcement rib; 32-wheel base shaft; 33-wheel base; 34-wheel; 4-horizontal hydraulic cylinder; 41-horizontal hydraulic cylinder base; 42-horizontal hydraulic cylinder base positioning hole; 43-universal joint; 44-fixing pin shaft; 45-universal joint shaft; 46-angular contact ball bearing; 5-vertical hydraulic cylinder; 51-support block; 52-vertical hydraulic cylinder base; 53-vertical hydraulic cylinder base positioning hole; 6-fixing bolt. DETAILED DESCRIPTION

[0016] The present invention will be further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0017] like Figures 1-6 As shown, a device for replacing an industrial frequency furnace inductor includes an industrial frequency furnace inductor 2 and a mounting bracket 1. Two C-shaped grooves 23 are provided on the side of the industrial frequency furnace inductor 2, and a base trolley 3 is provided at the bottom of the industrial frequency furnace inductor 2; two triangular reinforcing ribs 16 are vertically provided on the side of the mounting bracket 1, and a horizontal hydraulic cylinder 4 is connected to the top of the reinforcing rib 16. A universal connector 43 is provided at the pushing end of the horizontal hydraulic cylinder 4, and an end of the universal connector 43 is a universal connector shaft 45. An angular contact ball bearing 46 is provided at the universal connector shaft 45, and the angular contact ball bearing 46 is clamped with the C-shaped groove 23; two rails 13 are provided at the bottom of the mounting bracket 1 in the same direction as the horizontal hydraulic cylinder 4, and vertical hydraulic cylinders 5 are symmetrically provided on both sides of the rails 13, and the base trolley 3 is slidably set on the rails 13.

[0018] A mounting locating pin 21 is provided on the top of the power frequency furnace inductor 2 ; a lifting lug 22 is provided on the side of the power frequency furnace inductor 2 ; and a grid reinforcement rib 31 is provided on the base trolley 3 .

[0019] Example 1

[0020] The mounting bracket 1 is welded from I-channel steel to form a rectangular structure. Two U-channel steels are welded at the bottom of the mounting bracket 1 as a track 13 for the sliding of the base trolley 3. The mounting bracket 1 is safe and reliable. Vertical cylinder bottom plates 14 are symmetrically welded on both sides of the center of the two U-channel steel tracks 13, and four vertical positioning threaded holes 15 are drilled on them. Vertical I-channel steel is used on the side of the mounting bracket 1, which is welded into triangular reinforcement ribs 16. A square steel plate is welded on the top of the reinforcement rib 16 as a horizontal cylinder bottom plate 11, and four horizontal positioning threaded holes 12 are drilled on it.

[0021] A horizontal hydraulic cylinder base 41 is set at the tail end of the cylinder part of the horizontal hydraulic cylinder 4, and four horizontal hydraulic cylinder base positioning holes 42 are provided on it. The pushing end of the horizontal hydraulic cylinder 4 is fixedly connected to the universal joint 43 by a fixed pin shaft 44, and two angular contact ball bearings 46 are installed at the universal joint shaft 45 as the constraint surface of the C-shaped groove 23, which cooperates with the C-shaped groove 23 welded on the side of the power frequency furnace inductor 2, thereby ensuring that the power frequency furnace inductor 2 moves smoothly when sliding on the two rails 13.

[0022] A vertical hydraulic cylinder base 52 is set at the tail end of the vertical hydraulic cylinder 5, and four vertical hydraulic cylinder base positioning holes 53 are provided on it. The pushing end of the vertical hydraulic cylinder 5 adopts a threaded square support steel plate as a support block 51 to prevent the base trolley 3 from deforming during pushing.

[0023] The horizontal positioning threaded hole 12 and the horizontal hydraulic cylinder base positioning hole 42, the vertical positioning threaded hole 15 and the vertical hydraulic cylinder base positioning hole 53 are respectively connected and fixed by fixing bolts 6, which can accurately position and facilitate removal and replacement.

[0024] The bottom of the base trolley 3 is made of I-shaped steel welded horizontally and vertically into a rectangular structure, and a grid reinforcement rib 31 is welded inside the base trolley 3 to enhance the strength and rigidity of the structure, thereby ensuring the strength required for the lifting process; 10 cm thick steel plates are welded at the center positions on both sides of the base trolley 3 as vertical jacking contact surfaces, and angle irons are welded around the base trolley 3 to facilitate the embedding of the bottom of the power frequency furnace induction body 2 into the base trolley 3, providing convenience for subsequent installation and disassembly positioning operations; eight wheel bases 33 are evenly welded on the bottom of the base trolley 3, and every two wheel bases 33 are symmetrically welded as a group. The wheels 34 are connected between the two wheel bases 33 through the wheel base shaft 32, which can not only ensure horizontal movement, but also facilitate positioning in the X-axis direction during subsequent installation.

[0025] When removing the power frequency furnace inductor 2, first tilt the furnace, but do not tilt it more than 90° to prevent damage to the furnace's tilting cylinder. Use an overhead crane to lift the base trolley 3 and place it vertically onto the track 13 of the mounting bracket 1. Push it to the pre-set position, and reset the furnace to its vertical position. Place the angular contact ball bearing 46 into the C-shaped groove 23 welded on the side of the power frequency furnace inductor 2, level with the horizontal hydraulic cylinder 4. Insert the universal joint 43 and the fixed pin 44 connecting it to the cylinder's push end. Open the vertical hydraulic cylinder 5 and lift the base trolley 3 to the bottom of the power frequency furnace inductor 2, tightly engaging it.

[0026] Remove the bolts at the flange of the furnace body and the inductor 2 of the power frequency furnace. By applying this device, the labor intensity and operational risks of the dismantling operation are reduced, and the damage of the bolts due to the asynchronous dismantling process is prevented, which may even directly affect the service life of the installation positioning pin 21. Reset the vertical hydraulic cylinder 5 and let the base trolley 3 fall smoothly onto the track 13. The vertical hydraulic cylinder 5 is completely depressurized to prevent the subsequent horizontal push of the power frequency furnace inductor 2 from damaging the cylinder. Start the horizontal hydraulic cylinder 4 and push the power frequency furnace inductor 2 to the end of the track 13 using the base trolley 3. Remove the universal connector 43 and the fixed pin 44, tilt the upper furnace body, and the tilt should not exceed 90° to facilitate the lifting of the power frequency furnace inductor 2. Cooperate with the overhead crane to use the four-claw hook to hang on the lifting lug 22 of the power frequency furnace inductor 2 and lift it out.

[0027] After the spare parts of the power frequency furnace inductor 2 are replaced, tilt the upper furnace body at a maximum of 90° to facilitate the hoisting of the power frequency furnace inductor 2. Use a four-claw hook with an overhead crane to hang it at the lifting lug 22 and vertically hoist it into the base trolley 3 at the end of the track 13. Then, place the angular contact ball bearing 46 into the C-slot 23, level with the horizontal hydraulic cylinder 4. Insert the universal joint 43 and the fixing pin 44, start the horizontal hydraulic cylinder 4, and use the base trolley 3 to push the power frequency furnace inductor 2 to the appropriate position on the track 13. Then, close the horizontal hydraulic cylinder 4.

[0028] Reset the upper furnace body of the power frequency furnace, place the power frequency furnace vertically, start the vertical hydraulic cylinder 5, and jog it up. Check whether the installation locating pins 21 on the flange of the power frequency furnace inductor 2 are embedded in the positioning holes of the upper furnace body. Then reset the vertical hydraulic cylinder 5, and return the power frequency furnace inductor 2 to its original position. Tilt the upper furnace body. The tilt shall not exceed 90°. Start brushing the separating agent on the surface of the refractory material and docking material of the power frequency furnace inductor 2. The separating agent requires the inductor to be installed quickly and secondary docking is strictly prohibited. Start the vertical hydraulic cylinder 5 to push the power frequency furnace inductor 2 and the base trolley 3 to rise until the installation locating pins 21 of the power frequency furnace inductor 2 are completely embedded in the positioning holes of the upper furnace body. Quickly tighten the bolts and check whether there is any sealing material overflow at the edges of the power frequency furnace inductor 2 and the flange of the upper furnace body.

[0029] Reset the vertical hydraulic cylinder 5, remove the universal joint 43 and the fixed pin 44, tilt the power frequency furnace, the tilt should not exceed 90°, pull out the base trolley 3 along the track 13 of the mounting bracket 1, lift it out with the help of the overhead crane, and place it in the designated area. Grease the wheels 34, angular contact ball bearings 46 and other components, and perform maintenance for the next use.

Claims

1. A device for replacing an inductor of an industrial frequency furnace, characterized by: The invention comprises an industrial frequency furnace induction body (2) and a mounting bracket (1), wherein two C-shaped grooves (23) are provided on the side of the industrial frequency furnace induction body (2), and a base trolley (3) is provided at the bottom of the industrial frequency furnace induction body (2); two triangular reinforcing ribs (16) are vertically provided on the side of the mounting bracket (1), and a horizontal hydraulic oil cylinder (4) is connected to the top of the reinforcing rib (16); a universal joint (43) is provided at the top pushing end of the horizontal hydraulic oil cylinder (4), and the end of the universal joint (43) is a universal joint shaft (45), and an angular contact ball bearing (46) is provided at the universal joint shaft (45), and the angular contact ball bearing (46) is clamped with the C-shaped groove (23); two rails (13) are provided at the bottom of the mounting bracket (1) in the same direction as the horizontal hydraulic oil cylinder (4), and vertical hydraulic oil cylinders (5) are symmetrically provided on both sides of the rails (13), and the base trolley (3) is slidably arranged on the rails (13).

2. The device for replacing an inductor of an industrial frequency furnace according to claim 1, characterized in that: The top of the power frequency furnace induction body (2) is provided with a mounting positioning pin (21); and the side of the power frequency furnace induction body (2) is provided with a lifting lug (22).

3. The device for replacing an inductor of an industrial frequency furnace according to claim 1 or 2, characterized in that: The base trolley (3) is provided with grid reinforcement ribs (31).

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