CN216357387U

CN216357387U - Electrode cooling device of electric arc furnace for silicon production and processing

Info

Publication number: CN216357387U
Application number: CN202122523291.0U
Authority: CN
Inventors: 刘兴旺; 陈天诸
Original assignee: Xinjiang Minwang Silicon Industry Co ltd
Current assignee: Xinjiang Minwang Silicon Industry Co ltd
Priority date: 2021-10-20
Filing date: 2021-10-20
Publication date: 2022-04-19
Anticipated expiration: 2031-10-20

Abstract

The utility model discloses an electrode cooling device of an electric arc furnace for silicon production and processing, which comprises a furnace cover, wherein the middle part of the furnace cover is penetrated and slidably connected with a heat exchange groove, the upper side of the heat exchange groove is provided with a cover frame, the cover frame is penetrated and fixedly connected with three electrodes, the three electrodes are arranged in a triangular manner, the lower ends of the three electrodes all penetrate through the lower side wall of the heat exchange groove, the inner surface of the heat exchange groove is provided with a spray pipe group, the liquid inlet end of the spray pipe group penetrates through the cover frame, the two annular spray pipes are symmetrically arranged on the inner side wall of the heat exchange groove from top to bottom, one side wall of the annular spray pipe, which faces to the electrodes, is uniformly provided with spray through holes, a guide pipe is penetrated and connected between the two annular spray pipes, the upper annular spray pipe is penetrated and connected with a liquid inlet pipe, the periphery of the spray electrodes can be cooled, and meanwhile, the spray liquid can be prevented from dropping downwards due to excessive amount, the influence of the spraying liquid on the smelting effect is avoided.

Description

Electrode cooling device of electric arc furnace for silicon production and processing

Technical Field

The utility model relates to the technical field of silicon production and processing equipment, in particular to an electric arc furnace electrode cooling device for silicon production and processing.

Background

An electric arc furnace is an electric furnace that utilizes the high temperature produced by an electrode arc to melt ores and metals. For smelting metal, the electric arc furnace has greater process flexibility than other steel furnaces, can effectively remove impurities such as sulfur, phosphorus and the like, has easily controlled furnace temperature and small equipment floor area, and is suitable for smelting high-quality alloy steel.

In the production and processing process of silicon, an electric arc furnace is needed to smelt and purify quartz sand, industrial silicon is produced and then is further processed, however, the electric arc furnace works under the condition of large current, a large amount of heat is generated, peripheral temperature rise is caused, if cooling is not carried out in time, the performance and the power of a machine are influenced, and component parts are burnt to damage the machine. At present, when an electric arc furnace cools electrode elements and the like, measures such as winding a cooling water pipe and spraying are generally adopted for cooling, but the spraying amount is inconvenient to control when the electric arc furnace is sprayed for cooling, too much spraying liquid cannot be evaporated and fall in time to influence the smelting effect, and too little spraying liquid causes poor cooling effect, so that the electric arc furnace electrode cooling device for silicon production and processing is provided.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an electric arc furnace electrode cooling device for silicon production and processing, which solves the problems in the background technology.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides an electric arc furnace electrode cooling device for silicon production and processing, includes the bell, the middle part of bell runs through and sliding connection has the heat transfer groove, heat transfer groove upside is equipped with the lid frame, run through and the three electrode of fixedly connected with on the lid frame, it is three the electrode is triangle-shaped and lays, and is three the lower extreme of electrode all runs through the lower lateral wall of heat transfer groove, the internal surface of heat transfer groove is equipped with the bank of spray tubes, the feed liquor end of bank of spray tubes runs through the lid frame.

Preferably, the spraying pipe group comprises two annular spraying pipes, the two annular spraying pipes are symmetrically arranged on the upper portion and the lower portion of the inner side wall of the heat exchange groove, the annular spraying pipes face to the side wall of the electrode and are evenly provided with spraying through holes, the two annular spraying pipes are connected with the flow guide pipe in a penetrating mode and are arranged on the upper side, the annular spraying pipes are connected with the liquid inlet pipe in a penetrating mode, and the upper end of the liquid inlet pipe penetrates through the side wall of the cover frame.

Preferably, the equal fixedly connected with mounting panel in the lateral wall upper end left and right sides of heat transfer groove, the left and right sides of lid frame all with correspond the side the mounting panel passes through the bolt-up.

Preferably, still include flow divider valve and collecting valve, it is three the surface of electrode all overlaps and is equipped with the heat transfer tubular column, the inside cavity that is equipped with of lateral wall of heat transfer tubular column, just the upside of cavity runs through the lateral wall of heat transfer tubular column, the internal surface winding of cavity has the cooling tube, the feed liquor end of cooling tube all runs through with play liquid end the lid frame, it is three the feed liquor end of cooling tube all with the play liquid end that the flow divider valve corresponds is connected, and is three the play liquid end of cooling tube all with the feed liquor end that the collecting valve corresponds is connected.

Preferably, the lower end of the outer surface of the heat exchange pipe column is fixedly connected with an annular sealing seat, and the annular sealing seat is fixedly connected with the inner lower surface of the heat exchange groove.

Preferably, the upper parts of the three electrodes are connected together through a clamping frame.

Compared with the prior art, the utility model has the beneficial effects that: the utility model provides an electric arc furnace electrode cooling device for silicon production and processing, run through the electrode and establish on the lid frame, the lid is erect on the heat transfer groove, be equipped with the annular spraying pipe in the heat transfer groove, be equipped with on the annular spraying pipe and spray the through-hole, honeycomb duct on the annular spraying pipe runs through the lid frame, can cool down around the electrode through spraying, can avoid spraying liquid too much to drip down simultaneously, avoid spraying the liquid influence and smelt the effect, be equipped with the heat transfer tubular column through the electrode outside, around having the cooling tube in the cavity in the heat transfer tubular column, can make the radiating effect of electrode better, pass through the bolt-up through mounting panel on lid frame and the heat transfer groove, can make things convenient for the dismantlement between lid frame and the heat transfer groove to change, the sustainable usability of this cooling device is conveniently improved.

Drawings

FIG. 1 is a front view of the present invention;

FIG. 2 is a front sectional view of the present invention;

FIG. 3 is a top view of a heat exchange cell of the present invention;

FIG. 4 is a perspective view of the shower stack of the present invention;

fig. 5 is a perspective view of the interior of a heat exchange column of the present invention.

In the figure: 1-furnace cover, 2-heat exchange tank, 3-cover frame, 4-electrode, 5-annular spray pipe, 6-spray through hole, 7-guide pipe, 8-liquid inlet pipe, 9-mounting plate, 10-heat exchange pipe column, 11-cavity, 12-cooling pipe, 13-flow dividing valve, 14-collecting valve, 15-annular seal seat and 16-holding frame.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-5, the present invention provides the following technical solutions: an electric arc furnace electrode cooling device for silicon production and processing comprises a furnace cover 1, wherein the middle part of the furnace cover 1 is penetrated and connected with a heat exchange groove 2 in a sliding manner, the heat exchange groove 2 can slide up and down in the furnace cover 1, a cover frame 3 is arranged on the upper side of the heat exchange groove 2, a plurality of vent holes are formed in the cover frame 3, ventilation and heat exchange in the heat exchange groove 2 are facilitated, a fan can be connected through an air guide pipe, the air guide pipe guides ventilation into the heat exchange groove 2, the air flow rate in the heat exchange groove 2 is accelerated, the cooling effect of an electrode 4 is better, three electrodes 4 are penetrated and fixedly connected onto the cover frame 3, the three electrodes 4 are distributed in a triangular manner, the lower ends of the three electrodes 4 penetrate through the lower side wall of the heat exchange groove 2, a lifting structure is connected onto the cover frame 3 after the furnace cover 1 is covered on a smelting furnace, the height of the electric arc end of the electrode 4 in the smelting furnace is convenient to adjust, and a spraying pipe group is arranged on the inner surface of the heat exchange groove 2, the spray pipe group is used for spraying liquid around the counter electrode 4, and the spray pipe group is gone into with the spray water pump through the pump body, and the blowout sprays the liquid, does benefit to the heat transfer of electrode 4, the feed liquor end of spray pipe group runs through lid frame 3, when spraying liquid is too much, the evaporation is slower, can have in the heat transfer groove 2, can not continue downwards drippage, avoids spraying liquid whereabouts to influence the smelting effect of silicon.

Particularly, the spray pipe group includes two annular spray pipes 5, two the symmetry is established about annular spray pipe 5 the inside wall of heat transfer groove 2, annular spray pipe 5 the face-to-face evenly be equipped with spray through hole 6, two on the lateral wall of electrode 4 link up between the annular spray pipe 5 and connect honeycomb duct 7, the upside link up on the annular spray pipe 5 and have feed liquor pipe 8, feed liquor pipe 8's upper end is run through the lateral wall of lid frame 3, feed liquor pipe 8's feed liquor end and pump body coupling, the pump body will spray liquid and pass through 8 suction annular spray pipes 5 of feed liquor pipe, and the annular spray pipe 5 of both sides about honeycomb duct 7 connects makes two annular spray pipes 5 homoenergetic spray liquid through spraying through hole blowout, carries out the heat transfer around electrode 4, makes the heat transfer effect better.

Particularly, the equal fixedly connected with mounting panel 9 of lateral wall upper end left and right sides of heat transfer tank 2, the left and right sides of lid frame 3 all with correspond the side mounting panel 9 passes through the bolt-up, and heat transfer tank 2 adopts high temperature resistant material to make, makes its temperature that can bear the process production of pyrometallurgical, because the temperature that heat transfer tank 2 received is higher, so its loss degree can be great, lift off the bolt and can make lid frame 3 and heat transfer tank 2 convenient dismantlement to heat transfer tank 2 is conveniently more renewed, makes this cooling device's sustainable usability better, and the easy to maintain overhauls.

Particularly, still include flow divider 13 and collecting valve 14, three the surface of electrode 4 all overlaps and is equipped with heat exchange tube post 10, the inside cavity 11 that is equipped with of lateral wall of heat exchange tube post 10, just the upside of cavity 11 runs through the lateral wall that goes up of heat exchange tube post 10, the internal surface winding of cavity 11 has cooling tube 12, and cooling tube 12 in the cavity 11 snakelike arranging, and the both ends of cooling tube 12 are finally leaned on together, the inlet end and the play liquid end of cooling tube 12 all run through lid frame 3, three the inlet end of cooling tube 12 all with the play liquid end that flow divider 13 corresponds is connected, and is three the play liquid end of cooling tube 12 all with the inlet end that flow divider 14 corresponds is connected, and the inlet end of flow divider 13 is connected with the pump body, and the play liquid end of flow divider 14 passes through pipe connection in the water tank, and the pump body is with the cooling water suction to divide into three cooling tube 12 through flow divider 13, cooling water flows in the cooling pipe 12 to exchange heat with the electrode 4, the temperature of the electrode 4 is reduced, finally the temperature of the cooling water is raised, the cooling water is collected by the collecting valve 14, and high-temperature water is introduced into the water tank for other utilization.

Particularly, the outer surface lower extreme fixedly connected with annular seal receptacle 15 of heat exchange tubular column 10, annular seal receptacle 15 with the interior lower surface fixed connection of heat transfer groove 2, annular seal receptacle 15 seals the gap between the lower extreme of heat exchange tubular column 10 and heat transfer groove 2, is favorable to spraying liquid and drips in the gap between electrode 4 and the heat transfer groove 2.

In particular, the upper parts of the three electrodes 4 are connected together by a clamping frame 16, the clamping frame 16 facilitating the three electrodes 4 to be kept stable.

The working principle is as follows: when the electrode 4 is used, the spray water is introduced through the liquid inlet pipe 8 and is sprayed out through the spray through holes 6 on the annular spray pipe 5, which is beneficial to the heat exchange around the electrode 4, the cooling water flows through the cooling pipe 12 to exchange heat with the electrode 4, so that the heat exchange effect of the electrode 4 is better, and if the spray water falls too much, the spray water can fall into the heat exchange tank 2 and can not continuously fall into the smelting furnace on the lower side, so that the influence of the spray water on the smelting effect is avoided, meanwhile, the heat exchange groove 2 is arranged at the outer side of the electrode 4, the outer side of the heat exchange groove is close to the smelting part, so that the heat exchange groove bears higher temperature and has larger loss degree, the cover frame 3 is fastened with the mounting plate 9 on the heat exchange groove 2 through bolts, can make things convenient for the dismantlement between lid frame 3 and the heat transfer groove 2, conveniently regularly change new heat transfer groove 2, make this cooling device's use have better sustainability.

In the description of the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral part; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The standard parts used in the utility model can be purchased from the market, the special-shaped parts can be customized according to the description of the specification and the accompanying drawings, the specific connection mode of each part adopts conventional means such as bolts, rivets, welding and the like mature in the prior art, the machines, the parts and equipment adopt conventional models in the prior art, and the circuit connection adopts the conventional connection mode in the prior art, so that the detailed description is omitted.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides an electric arc furnace electrode cooling device for silicon production and processing, includes bell (1), its characterized in that: the middle part of bell (1) runs through and sliding connection has heat transfer groove (2), heat transfer groove (2) upside is equipped with lid frame (3), run through and three electrode of fixedly connected with (4), three on lid frame (3) electrode (4) are triangle-shaped and lay, and are three the lower extreme of electrode (4) all runs through the lower lateral wall of heat transfer groove (2), the internal surface of heat transfer groove (2) is equipped with sprays the nest of tubes, the feed liquor end that sprays the nest of tubes runs through lid frame (3).

2. The cooling apparatus for an electrode of an electric arc furnace for silicon production and processing according to claim 1, wherein: the spray pipe group comprises two annular spray pipes (5) and two annular spray pipes (5) which are symmetrically arranged up and down and are symmetrically arranged on the inner side wall of the heat exchange groove (2), the annular spray pipes (5) face to each other, spray through holes (6) and two are uniformly formed in one side wall of the electrode (4), a flow guide pipe (7) and a liquid inlet pipe (8) are connected between the annular spray pipes (5) in a penetrating mode, the upper side of the liquid inlet pipe (8) penetrates through the side wall of the cover frame (3).

3. The cooling apparatus for an electrode of an electric arc furnace for silicon production and processing according to claim 1, wherein: the equal fixedly connected with mounting panel (9) of the lateral wall upper end left and right sides of heat transfer groove (2), the left and right sides of lid frame (3) all with correspond the side mounting panel (9) pass through the bolt-up.

4. The cooling apparatus for an electrode of an electric arc furnace for silicon production and processing according to claim 1, wherein: still include flow divider valve (13) and current collection valve (14), it is three the surface of electrode (4) all overlaps and is equipped with heat transfer tubular column (10), the inside cavity (11) that is equipped with of lateral wall of heat transfer tubular column (10), just the upside of cavity (11) runs through the side wall that goes up of heat transfer tubular column (10), the internal surface winding of cavity (11) has cooling tube (12), the feed liquor end of cooling tube (12) all runs through with play liquid end lid frame (3), it is three the feed liquor end of cooling tube (12) all with the play liquid end that flow divider valve (13) correspond is connected, and is three the play liquid end of cooling tube (12) all with the feed liquor end that flow divider valve (14) corresponds is connected.

5. The cooling apparatus for an electrode of an electric arc furnace for silicon production and processing according to claim 4, wherein: the heat exchange device is characterized in that an annular sealing seat (15) is fixedly connected to the lower end of the outer surface of the heat exchange pipe column (10), and the annular sealing seat (15) is fixedly connected with the inner lower surface of the heat exchange groove (2).

6. The cooling apparatus for an electrode of an electric arc furnace for silicon production and processing according to claim 1, wherein: the upper parts of the three electrodes (4) are connected together through a clamping frame (16).