CN219123630U - Quick switching device for power receiving busbar of Acheson graphitizing furnace - Google Patents

Abstract

The utility model discloses a quick switching device for a power receiving busbar of an Acheson graphitizing furnace, which comprises a busbar, copper-aluminum bars, a hydraulic station and an oil cylinder, wherein a plurality of copper-aluminum bars are symmetrically arranged on two sides of the busbar, the hydraulic station is connected with the oil cylinder, the oil cylinder is fixed on the copper-aluminum bar on one side of the busbar, and a piston rod of the oil cylinder penetrates through the busbar and is fixedly connected with the copper-aluminum bar on the other side of the busbar. And the contact and disconnection of the copper-aluminum bars and the busbar are realized through the contraction of the piston rod. The base flange is arranged at the extending end of the piston rod of the oil cylinder, the connecting flange is arranged at the tail end of the piston rod, and the base flange and the connecting flange are fixedly connected with the copper-aluminum bars. A plurality of supporting frames are arranged at the top of the busbar, and the piston rod is prevented from being used as a bearing structure of the busbar. And each connecting position is provided with an insulating pad.

Description

Quick switching device for power receiving busbar of Acheson graphitizing furnace

Technical Field

The utility model belongs to the technical field of graphitizing furnaces, and particularly relates to a quick switching device for a power receiving busbar of an Acheson graphitizing furnace.

Background

Graphitization furnaces are direct heating, intermittent resistance furnaces designed according to the principles of joule's law. For the Acheson graphitizing furnace, the furnace core is formed by the product filled in the furnace and a small amount of resistor material, the product is a heating resistor, when the circuit is connected, the furnace core heats up due to the effect of the resistor, so that the carbon blank is converted into artificial graphite through high-temperature heat treatment at 2200-2300 ℃. In the production process, all the heat copper aluminum bars are connected with the conductive busbar, and the heat is frequently subjected to the phenomenon of electricity channeling in the power transmission process, so that the electric damage of electric elements and the electric shock risk of personnel are caused by high current in equipment, and the heat are switched to be transmitted for isolating the current, so that the heat and the heat are required to be periodically subjected to the operation of switching and dismantling the heat copper aluminum bars of the furnace end.

In the industrial production process, the power receiving busbar at the non-incoming line end is required to be disassembled and isolated in the heat switching process because the outgoing line end of the transformer and all the furnaces are connected in parallel, so that the electric leakage phenomenon is prevented. However, in the actual production process, due to the frequent occurrence of the phenomenon of 'electricity channeling', the busbar at the non-electric-receiving furnace secondary input end has to be disassembled and insulated, and due to the narrow site position, the position of the clamping plate bolt on the disassembled conductive busbar is higher, and the disassembly process is time-consuming and waste, and usually requires 6 people to work for 2-3 hours at the same time to finish. In order to prevent that the busbar of electric conduction from warping still needs to set up the support and fix it, extra and increase the additional expense, in order to improve the automation rate of device, reduce staff's intensity of labour, promote staff's happiness, through improving current mode of switching, quick will copper aluminium row switch, avoid the human factor to lead to time overlength, influence acheson stove production heat rate of operation, lead to manufacturing cost increase. Aiming at the problems, a quick switching device for a power receiving busbar of an Acheson graphitizing furnace is provided.

Disclosure of Invention

In order to solve the problems, the utility model provides a quick switching device for a power receiving busbar of an Acheson graphitizing furnace, which aims at the problem of quick disassembly of the power receiving busbar of a non-inlet end in the furnace switching process.

The quick switching device for the current-carrying busbar of the Acheson graphitizing furnace comprises a busbar, copper-aluminum bars, a hydraulic station and an oil cylinder, wherein a plurality of copper-aluminum bars are symmetrically arranged on two sides of the busbar, the hydraulic station is connected with the oil cylinder, the oil cylinder is fixed on the copper-aluminum bar on one side of the busbar, and a piston rod of the oil cylinder penetrates through the busbar and is fixedly connected with the copper-aluminum bar on the other side of the busbar. The contact and disconnection of the copper-aluminum bars and the busbar are realized through the extension and retraction of the oil cylinder.

In this embodiment, a connecting flange is installed at the end of the piston rod, and the connecting flange is fixedly connected with the copper-aluminum bar.

In this embodiment, an insulating sleeve is installed on the piston rod, and insulation is achieved between the piston rod and the busbar.

In the embodiment, an insulating pad is arranged at the joint of the oil cylinder and the copper-aluminum bar, so that the oil cylinder is prevented from conducting electricity.

In the embodiment, an insulating pad is arranged at the joint of the connecting flange and the copper-aluminum bar, so that the conduction of the oil cylinder is avoided.

In this embodiment, a plurality of support frames are installed at the top of the busbar for supporting the busbar, and the pistons are prevented from being used as a support structure of the busbar.

In this embodiment, the supporting frame has a triangular structure, and an insulating pad is installed between the supporting frame and the busbar.

In the embodiment, the hydraulic station is provided with an electromagnetic directional valve, and the electromagnetic directional valve is provided with a hydraulic bidirectional lock to realize oil supply and oil return of the oil cylinder, and the hydraulic bidirectional lock ensures that the pressure is unchanged after power failure.

The technical scheme of the embodiment of the utility model has at least the following advantages and beneficial effects:

1. the technology is simple and the equipment investment is low. The power transmission function of switching on and off can be realized rapidly through the action of the hydraulic station and the oil cylinder. 2. The hydraulic cylinder is convenient and quick to break and close, high in efficiency and convenient and quick to maintain, and the hydraulic cylinder can be quickly removed and replaced. 3. The insulation is good, and the equipment is safe and reliable. Because all the connecting pieces are insulated, the damage of other equipment and the risk of electric shock of personnel caused by 'electricity channeling' during operation of the equipment are prevented. 4. After equipment is put into operation, the labor intensity of personnel can be greatly reduced, the charging efficiency is improved, and the damage to other equipment caused by 'electricity channeling' of the equipment is reduced, so that the production time is influenced.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present utility model and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic diagram of a cylinder;

FIG. 3 is a schematic diagram of a device system;

icon: 1-copper aluminum bars, 2-bus bars, 3-oil cylinders, 4-connecting flanges, 5-supporting frames, 6-insulating pads, 7-base flanges, 8-bolts and 9-hydraulic stations.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. The components of the embodiments of the present utility model generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.

In the description of the present utility model, it should be noted that, if the azimuth or positional relationship indicated by the terms "inner", "outer", etc. appears to be based on the azimuth or positional relationship shown in the drawings, or the azimuth or positional relationship that the inventive product is conventionally put in use, it is merely for convenience of describing the present utility model and simplifying the description, and it is not indicated or implied that the apparatus or element referred to must have a specific azimuth, be configured and operated in a specific azimuth, and therefore should not be construed as limiting the present utility model.

In the description of the present utility model, it should also be noted that, unless explicitly stated and limited otherwise, the terms "disposed," "mounted," "configured," and "connected" should be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

Referring to fig. 1 to 3, the present embodiment provides a rapid switching device for a power receiving busbar 2 of an acheson graphitizing furnace.

In this embodiment, copper-aluminum bars 1 are installed on two symmetrical sides of the busbar 2, and the number of the copper-aluminum bars 1 is based on actual situation, and the copper-aluminum bars 1 are symmetrically distributed. In the use process, the contact and separation of the copper aluminum bar 1 and the busbar 2 are required to be realized. The oil cylinder 3 is fixedly arranged on the copper-aluminum bar 1 on the same side of the busbar 2, a piston rod of the oil cylinder 3 penetrates into a reserved hole on the busbar 2, and the piston rod is fixedly connected with the copper-aluminum bar 1 on the other side of the busbar 2. The extension and retraction of the oil cylinder 3 can realize the contact and separation of the copper-aluminum bar 1 and the busbar 2. Because the piston rod passes female row 2, in order to avoid the piston rod as the bearing structure of female row 2, fixedly connected with a plurality of support frame 5 at the top of female row 2 for fixed stay female row 2.

In this embodiment, a base flange 7 is fixed at the output end of a piston rod of the oil cylinder 3, and through forming a screw hole on the copper-aluminum bar 1, the oil cylinder 3 and the copper-aluminum bar 1 can be fixedly connected through a bolt 8. The tail end of the piston rod is provided with threads, the piston rod is in threaded connection with the connecting flange 4, and the connecting flange 4 can be fixed on the copper-aluminum bar 1 through bolts 8. The quick disassembly and replacement of the oil cylinder 3 can be realized.

In this embodiment, since the busbar 2 is electrified, in order to avoid electric leakage, an insulating sleeve is installed on the piston rod, insulating pads 6 are respectively arranged between the connecting flange 4 and the base flange 7 and the copper-aluminum busbar 1, and insulating pads 6 are also arranged between the supporting frame 5 and the busbar 2.

In this embodiment, the oil cylinder 3 is connected with the hydraulic station 9, and the hydraulic station 9 supplies oil and returns oil to the oil cylinder 3, and the oil is supplied and returned automatically by western security through an electromagnetic directional valve installed on the hydraulic station 9. Meanwhile, a hydraulic bidirectional lock is arranged at the lower part of the electromagnetic reversing valve, so that the pressure is unchanged after power failure.

The working process comprises the following steps: when the power is required to be cut off, the hydraulic station 9 supplies oil to the oil cylinder 3, and at the moment, the piston rod stretches out to disconnect the copper aluminum busbar 1 from the busbar 2, so that the busbar 2 is powered off. When the power is needed, the oil in the oil cylinder 3 returns to the hydraulic station 9, the piston rod is contracted, and the copper-aluminum bar 1 is contacted with the busbar 2, so that the busbar 2 is powered on.

The above is only a preferred embodiment of the present utility model, and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims (8)

1. The quick switching device for the current-carrying busbar of the Acheson graphitizing furnace comprises a busbar, copper-aluminum bars, a hydraulic station and an oil cylinder, wherein a plurality of copper-aluminum bars are symmetrically arranged on two sides of the busbar, the hydraulic station is connected with the oil cylinder.

2. The fast switching device of claim 1, wherein,

and the tail end of the piston rod is provided with a connecting flange which is fixedly connected with the copper-aluminum bar.

3. A fast switching device according to claim 2, wherein,

and the piston rod is provided with an insulating sleeve.

4. The fast switching device of claim 1, wherein,

and an insulating pad is arranged at the joint of the oil cylinder and the copper-aluminum bar.

5. A fast switching device according to claim 2, wherein,

and an insulating pad is arranged at the joint of the connecting flange and the copper-aluminum bar.

6. The fast switching device of claim 1, wherein,

and a plurality of supporting frames are arranged at the top of the busbar.

7. The fast switching device of claim 6, wherein,

the support frame is triangle-shaped structure, installs insulating pad between support frame and the busbar.

8. The fast switching device of claim 1, wherein,

the hydraulic station is provided with an electromagnetic directional valve which is provided with a hydraulic bidirectional lock.

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