CN112797788A

CN112797788A - Smelting device applied to nanocrystalline magnetically soft alloy material

Info

Publication number: CN112797788A
Application number: CN202011617971.2A
Authority: CN
Inventors: 安石
Original assignee: Jiangsu Sanhuan Ona Technology Co ltd
Current assignee: Jiangsu Sanhuan Ona Technology Co ltd
Priority date: 2020-12-30
Filing date: 2020-12-30
Publication date: 2021-05-14
Anticipated expiration: 2040-12-30
Also published as: CN112797788B

Abstract

The invention discloses a smelting device applied to a nanocrystalline magnetically soft alloy material, which comprises: the smelting main body comprises a furnace body and a furnace cover covering the top of the furnace body, wherein at least one electrode hole is formed in the furnace cover; the electrode sealing ring is detachably mounted and fixed in the electrode hole and comprises a plurality of C-shaped sealing rings which are sequentially stacked and a tightening piece which tightens and fixes the C-shaped sealing rings; the interior of each C-shaped sealing ring is provided with a C-shaped cavity, and each C-shaped sealing ring is also provided with a through liquid inlet and a through liquid outlet; the liquid inlet/outlet of the C-shaped sealing ring is opposite to the liquid outlet/inlet of the other adjacent C-shaped sealing ring. The smelting device can be applied to smelting and processing of the nanocrystalline magnetically soft alloy. The electrode and the sealing ring thereof which are used as core elements on the smelting device are also convenient to install.

Description

Smelting device applied to nanocrystalline magnetically soft alloy material

Technical Field

The invention relates to the technical field of processing and designing of a new nanocrystalline soft magnetic alloy material, in particular to a smelting device applied to a nanocrystalline soft magnetic alloy material.

Background

The soft magnetic material has small coercive force, and is easy to magnetize and demagnetize, so that the soft magnetic material is widely applied to the field of magnetic conductive materials, such as computers, mobile phones, plane display technologies and the like, and various magnetic amplifiers, filter coils, variable frequency inductors, variable frequency transformers, inverter power supplies, energy storage inductors and the like.

The iron-based amorphous alloy material is a novel soft magnetic material, and the arrangement of liquid metal is controlled in atomic layer order through rapid solidification, so that the atomic arrangement keeps the long-range disordered state of the liquid metal. The amorphous soft magnetic material has the advantages of low loss, excellent mechanical property, magnetic property, corrosion resistance and the like because of irregular atomic arrangement, long-range disorder and no existence of grain boundaries.

The controllability of the amorphous alloy evolution nanocrystalline obtains amorphous/nanocrystalline composite structure soft magnetic materials with more excellent performance, and the amorphous/nanocrystalline composite structure soft magnetic materials become novel soft magnetic materials developed in the late eighties of the last century, and the materials arouse great interest of material scientists with special comprehensive soft magnetic properties (such as high saturation magnetic induction intensity, low coercive force, high magnetic conductivity, low loss and the like). For example, Yoshizawa, by appropriate annealing of an amorphous alloy of Fe-Si-B-Nb-Cu, yields an amorphous/nanocrystalline composite structure, i.e., crystalline particles having an average particle size of about 10 nm are uniformly distributed in an amorphous matrix.

The iron-based amorphous/nanocrystalline soft magnetic alloy has excellent soft magnetic performance and corrosion resistance, simple preparation process and low cost, so the iron-based amorphous/nanocrystalline soft magnetic alloy is widely applied to the fields of microelectronics, machinery, electric power engineering and the like. For example, the conventional Finemet amorphous nanocrystalline alloy has excellent soft magnetic properties, and has partially replaced silicon steel sheets as the iron core material of power transformers.

The existing processing steps of the nanocrystalline magnetically soft alloy comprise the proportioning of raw materials, the smelting and crushing of master alloy, the preparation of a strip (amorphous alloy strip) and the heat treatment of the strip; the smelting process of the master alloy is an important processing step, and an electric arc furnace is generally adopted for smelting. The core element of the electric arc furnace comprises three electrodes which vertically penetrate through the furnace cover and extend to the interior of the furnace body, and the furnace cover is correspondingly provided with three electrode holes corresponding to the electrodes, and the electric arc furnace can utilize high-temperature smelting metal generated by the electrode electric arc.

In order to enable the electrode to freely lift and prevent the electrode from being broken when the furnace cover of the industrial electric furnace is heated and deformed, the diameter of the electrode hole is required to be 40-50 mm larger than the diameter of the electrode. The gap between the electrode and the electrode hole is very unfavorable for smelting, so that a large amount of high-temperature furnace gas escapes, the heat loss is increased, the temperature of the electrode on the upper part of the furnace cover is easily increased, the oxidation is violent, and the electrode becomes thin and is easily broken; therefore, an electrode sealing ring is needed to fill the annular gap between the electrode hole and the electrode; in addition, the electrode sealing ring can also cool a furnace cover around the electrode hole, so that the service life of the furnace cover is prolonged, and the atmosphere in the industrial electric furnace is favorably kept.

The existing electrode sealing ring generally comprises an annular water tank type and a serpentine tube type.

The annular water tank type is an annular structure with a cavity welded by steel plates, and can continuously input cold water into the cavity of the sealing ring through the outside and synchronously discharge the cold water so as to realize the effect of cooling; although the annular water tank type has good sealing performance (can be attached to the inner side wall of the electrode hole and the outer side wall of the electrode), the cooling effect on the electrode is poor because the inner part of the sealing ring cavity is an integral cavity and cold water is difficult to form a good flow guide path and a regular liquid passing direction in the sealing ring cavity;

the serpentine pipe type is formed by bending a seamless steel pipe around the periphery of the electrode, a spiral flow guide path can be formed, and cold water has a regular flow direction, so that the cooling effect is better than that of an annular water tank type, but the serpentine pipe type is poor in sealing performance because the serpentine pipe type cannot be completely attached to the inner side wall of an electrode hole and the outer side wall of the electrode, and cannot well protect the electrode on the upper part of the cover, so that the serpentine pipe type is not used on a large scale at present.

In addition, the existing electrode sealing ring is generally processed into a thin-wall closed body in order to ensure the cooling efficiency and reduce the processing difficulty, but the inner hole of the electrode sealing ring is easy to be burnt and leak water after being subjected to high temperature and electric impact with the electrode, and the quality of steel can be influenced by the water leakage. Therefore, the electrode sealing ring has short service life and is frequently shut down and replaced; the electrode sealing ring with the gap is almost of a whole ring structure, and the electrode sealing ring needs to be embedded into an electrode hole and inserted into an electrode when being replaced, so that the replacement difficulty is high, the operation rate of the furnace base is greatly influenced, and the labor intensity of maintenance workers is also increased.

Disclosure of Invention

This section is for the purpose of summarizing some aspects of embodiments of the invention and to briefly introduce some preferred embodiments. In this section, as well as in the abstract and the title of the invention of this application, simplifications or omissions may be made to avoid obscuring the purpose of the section, the abstract and the title, and such simplifications or omissions are not intended to limit the scope of the invention.

The present invention has been made in view of the problems occurring in the prior art.

Therefore, an object of the present invention is to provide a melting apparatus applied to a nanocrystalline soft magnetic alloy material, which includes: the smelting main body comprises a furnace body and a furnace cover covering the top of the furnace body, wherein at least one electrode hole is formed in the furnace cover; the electrode sealing ring is detachably mounted and fixed in the electrode hole and comprises a plurality of C-shaped sealing rings which are sequentially stacked and a tightening piece which tightens and fixes the C-shaped sealing rings; the interior of each C-shaped sealing ring is provided with a C-shaped cavity, and each C-shaped sealing ring is also provided with a through liquid inlet and a through liquid outlet; the liquid inlet/outlet of the C-shaped sealing ring is opposite to the liquid outlet/inlet of the other adjacent C-shaped sealing ring, so that the C-shaped cavities of every two adjacent C-shaped sealing rings are mutually communicated.

As a preferable scheme of the melting device applied to the nanocrystalline soft magnetic alloy material, the method comprises the following steps: the furnace cover comprises an annular cover plate, a central top plate fixed at the center of the annular cover plate and a furnace cover ring arranged on the periphery of the annular cover plate along the circumferential direction; the furnace cover is buckled at the top of the furnace body through the furnace cover ring; the electrode hole is located on the central top plate.

As a preferable scheme of the melting device applied to the nanocrystalline soft magnetic alloy material, the method comprises the following steps: the furnace body comprises a furnace lining working layer, a furnace lining heat insulation layer and a furnace lining permanent layer from inside to outside; a furnace opening and a steel tapping hole are formed in the furnace wall of the furnace body, and an outward extending steel tapping groove is formed in the outer portion of the steel tapping hole; the furnace body has a melting chamber therein, and a molten pool is formed in a space portion below the tap hole and the furnace mouth.

As a preferable scheme of the melting device applied to the nanocrystalline soft magnetic alloy material, the method comprises the following steps: the plurality of C-shaped sealing rings are sequentially reversely and alternately stacked, and can form a stacked body with an axial through hole in the center; the smelting body further includes a plurality of electrodes passing through axial through holes at the center of each stack; the inner diameter of the axial through hole of the stacked body is fitted to the outer diameter of the electrode, and the outer diameter of the stacked body is fitted to the inner diameter of the electrode hole.

As a preferable scheme of the melting device applied to the nanocrystalline soft magnetic alloy material, the method comprises the following steps: c-shaped cavity chambers in the C-shaped sealing rings are communicated with each other to form a rotary circulation channel in the stacked body together; the C-shaped sealing ring positioned at the upper end of the stacked body is an initial sealing ring, and a liquid inlet of the C-shaped sealing ring is used as an initial liquid inlet of the whole stacked body; the C-shaped sealing ring positioned at the lower end of the stacked body is an end sealing ring, and the liquid outlet of the C-shaped sealing ring is used as the integral end liquid outlet of the stacked body.

As a preferable scheme of the melting device applied to the nanocrystalline soft magnetic alloy material, the method comprises the following steps: the C-shaped sealing ring comprises a semicircular ring section and a pair of extension sections which are respectively positioned at two ends of the semicircular ring section, so that a bayonet with an opening at one side is formed at the center of the C-shaped sealing ring; the outlines of the inner side wall and the outer side wall of the semicircular ring section are semicircular curved side walls; the outer side wall of the extension section is smoothly connected with the outer side wall of the semicircular section to form a major arc profile with a central angle larger than 180 degrees; the inner side wall of the extension section is tangent to the end part of the inner side wall of the semicircular ring section to form smooth connection, and the width of the extension section is equal to the inner diameter of the semicircular ring section.

As a preferable scheme of the melting device applied to the nanocrystalline soft magnetic alloy material, the method comprises the following steps: the overlapped parts of the adjacent C-shaped sealing rings projected in the axial direction are overlapped areas of the respective C-shaped sealing rings; liquid inlets and liquid outlets of other C-shaped sealing rings except the tail end sealing ring are respectively arranged at two overlapping areas at two ends of the semicircular ring section, and the liquid inlets and the liquid outlets are respectively positioned on the front side surface and the back side surface of the C-shaped sealing ring; the liquid inlet of the end sealing ring is arranged at the overlapping area of the end sealing ring.

As a preferable scheme of the melting device applied to the nanocrystalline soft magnetic alloy material, the method comprises the following steps: the stacked body further includes a plurality of C-shaped insulating rings corresponding to the respective C-shaped sealing rings; the C-shaped insulating ring comprises a filling section spliced with the C-shaped sealing ring and a pair of isolation sections respectively positioned at two ends of the filling section; one side surface of each C-shaped sealing ring is inwards concave along the axial direction at a region corresponding to the overlapping region to form a shallow accommodating region; when the C-shaped insulating ring is spliced with the corresponding C-shaped sealing ring, the isolation section can be embedded into the corresponding shallow accommodating area to form complementation, and is isolated between the adjacent pair of C-shaped insulating rings, and the filling section and the C-shaped sealing ring can jointly enclose to form a closed complete ring.

As a preferable scheme of the melting device applied to the nanocrystalline soft magnetic alloy material, the method comprises the following steps: the C-shaped insulating ring is divided into a first C-shaped insulating ring spliced with the tail end sealing ring and a plurality of second C-shaped insulating rings spliced with other C-shaped sealing rings one by one; the first C-shaped insulating ring and the second C-shaped insulating ring respectively comprise a filling section and a pair of isolation sections at two ends of the filling section; the isolation section of the second C-shaped insulating ring is provided with a liquid passing hole which is opposite to the liquid outlet of the corresponding C-shaped sealing ring; the first C-shaped insulating ring is not provided with a liquid passing hole; a first limiting groove which is concave in the radial direction is arranged on the periphery of the filling section of the second C-shaped insulating ring; the peripheries of the semicircular ring sections of other C-shaped sealing rings except the tail end sealing ring are provided with second limiting grooves which are inwards concave in the radial direction; when the C-shaped sealing rings and the C-shaped insulating rings thereof are sequentially stacked to form a stacked body, a pair of grooves with penetrating upper ends and symmetrical to each other are formed on two sides of the stacked body; a threaded connector corresponding to one groove is arranged on the filling section of the first C-shaped insulating ring; the liquid outlet and the liquid inlet of the tail end sealing ring are positioned on the same side face of the first C-shaped insulating ring, a threaded connection nozzle corresponding to the other groove is arranged on the liquid outlet of the tail end sealing ring, and the threaded connection nozzle is communicated with the C-shaped cavity inside the tail end sealing ring; the tightening piece comprises a tightening rod embedded in one groove of the stacked body and a tightening pipe embedded in the other groove of the stacked body, and the upper ends of the tightening rod and the tightening pipe are provided with threaded regions; the tightening rod is of a solid rod structure, the lower end of the tightening rod is provided with a screw, and the tightening rod is in threaded connection with the threaded connector; the upper end of the tightening rod is connected with a nut which can rotate and press each C-shaped sealing ring and each C-shaped insulating ring on the side; the tightening pipe is of a hollow pipe structure, the lower end of the tightening pipe is provided with internal threads, the tightening pipe is in threaded connection with the threaded connection nozzle, and the tightening pipe is communicated with the threaded connection nozzle; the upper end of the tightening pipe is connected with a nut which can rotate and press each C-shaped sealing ring and the C-shaped insulating ring on the side.

As a preferable scheme of the melting device applied to the nanocrystalline soft magnetic alloy material, the method comprises the following steps: the upper ends of the tightening rod and the tightening pipe are respectively connected with a pressure ring through threads; a circle of annular bulge is arranged on the periphery of the upper end of the electrode hole, and an annular limiting slope is arranged at the upper end of the inner side surface of the annular bulge; when the electrode sealing ring is embedded into the electrode hole, the outer edge of the pressing ring can be placed on the annular bulge; the annular bulge is provided with a pair of sliding grooves which are opposite to each other and are through in the radial direction, and the bottoms of the sliding grooves are provided with screw holes; the tightening piece further comprises a sliding block arranged in the sliding groove in a sliding mode and a fastening bolt which vertically penetrates through the sliding block and is connected with the screw hole, a strip-shaped through hole corresponding to the fastening bolt is formed in the sliding block, and the strip-shaped through hole is through up and down and extends in the radial direction; the inner end of the sliding block is provided with a pressing slope surface right opposite to the pressing ring, and the pressing ring can be extruded downwards in an inclined mode through the pressing slope surface.

The invention has the beneficial effects that: the smelting device can be applied to smelting and processing of the nanocrystalline magnetically soft alloy. The electrode and the sealing ring which are used as core elements on the smelting device are also convenient to install, wherein the electrode sealing ring adopts an assembled structure which is stacked, the advantages of the existing annular water tank type electrode sealing ring and the snake-shaped tubular electrode sealing ring are integrated, and the electrode and the sealing ring can be very conveniently assembled, disassembled and replaced on site.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise. Wherein:

FIG. 1 is a view showing an internal structure of a melting apparatus.

Fig. 2 is a front view of the furnace lid.

Fig. 3 is an external structural view of the furnace cover and a partial detailed view thereof.

Fig. 4 is an internal construction view of the furnace cover and a partial detailed view thereof.

Fig. 5 is a front view of the electrode seal ring.

Fig. 6 is a front view of the electrode seal ring after explosion of the parts.

Fig. 7 is a front view of a single C-ring seal and C-ring insulator.

Fig. 8 is an exploded view of the electrode seal ring.

Fig. 9 is a top view of the electrode seal ring.

Fig. 10 is a sectional view taken along the line a in fig. 9 and a partial detail thereof.

Fig. 11 is a sectional view taken along line B in fig. 9.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be practiced in other ways than those specifically described and will be readily apparent to those of ordinary skill in the art without departing from the spirit of the present invention, and therefore the present invention is not limited to the specific embodiments disclosed below.

Furthermore, reference herein to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one implementation of the invention. The appearances of the phrase "in one embodiment" in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments.

As shown in fig. 1 to 11, the invention provides a smelting device applied to a nanocrystalline soft magnetic alloy material, which can be applied to a master alloy smelting process in a nanocrystalline soft magnetic alloy processing process, and an electrode and a sealing ring of the electrode, which are core elements, on the smelting device are also convenient to mount, dismount and replace.

As shown in fig. 1 to 4, the melting apparatus applied to the nanocrystalline soft magnetic alloy material includes a melting main body 100 and a combined electrode seal ring 200 convenient to disassemble and assemble.

The melting main body 100 includes a furnace body 101, a furnace cover 102 covering the top of the furnace body 101, and three electrodes 103 vertically penetrating the furnace cover 102.

The furnace cover 102 comprises an annular cover plate G-1, a central top plate G-2 fixed at the center of the annular cover plate G-1, and a furnace cover ring G-3 arranged on the periphery of the annular cover plate G-1 along the circumferential direction.

The annular cover plate G-1 is of an annular structure, and a through mounting hole is formed in the center of the annular cover plate G-1; the central top plate G-2 is a disk-shaped structure which can be detachably mounted in a mounting hole at the center of the annular cover plate G-1 (for example, the outer edge of the central top plate G-2 can be fixed at the center of the annular cover plate G-1 through a bolt).

The furnace lid 102 is fastened to the top of the furnace body 101 by a lid ring G-3.

The central top plate G-2 of the furnace cover 102 is provided with three electrode holes 102a which are distributed in a regular triangle point position and correspond to each electrode 103.

Each electrode 103 can be powered by a power supply system consisting of a transformer, a short-net bus, a cable, a conductive cross arm, an electrode holder, and the like, so that an arc is generated at the lower end of the electrode 103 to perform alloy melting.

The furnace cover 102 is provided with a plurality of connecting seats 102b for externally connecting a traction cable (such as a chain, a pull rod and the like) to hoist the furnace cover 102.

The electrode seal ring 200 is detachably mounted and fixed in the electrode hole 102a, and the electrode 103 passes through the center of the electrode seal ring 200. The electrode sealing ring 200 in the invention adopts an assembled structure in a stacking arrangement, integrates the advantages of the existing annular water tank type electrode sealing ring and the existing serpentine tube type electrode sealing ring, and can be very conveniently installed and replaced on site.

As shown in fig. 5 to 11, the electrode sealing ring 200 includes a plurality of C-shaped sealing rings 201 stacked together, and a tightening member 202 capable of tightening and fixing the C-shaped sealing rings 201 to form a whole.

A C-shaped cavity 201a is arranged in each C-shaped sealing ring 201, and each C-shaped sealing ring 201 is also provided with a through liquid inlet 201b and a through liquid outlet 201C; the inlet port 201 b/outlet port 201C of the C-ring 201 is opposite to the outlet port 201C/inlet port 201b of another adjacent C-ring 201, so that the C-chambers 201a of each two adjacent C-rings 201 are communicated with each other.

The C-shaped seals 201 are stacked one above another in this order to form a stacked body Z, and the C-shaped chambers 201a of two adjacent C-shaped seals 201 communicate with each other, so that a circulation passage D can be formed in the stacked body Z. When cold water is introduced into the rotary circulation channel D, a cold water flow path can be formed, and the electrode passing through the center of the rotary circulation channel D is cooled, so that the functions of protection, sealing and cooling are achieved.

Further, the furnace body 101 includes a lining working layer 101a, a lining heat-insulating layer 101b, and a lining permanent layer 101c from the inside to the outside. The lining working layer 101a is positioned at the innermost layer and is used for directly containing and contacting the alloy in a molten state, so that the lining working layer is made of high-temperature-resistant materials; the furnace lining heat insulation layer 101b is used for heat preservation and heat insulation and is made of high-temperature-resistant materials with low heat conductivity, so that the high temperature inside the furnace lining is prevented from being directly transmitted to the outer layer of the most furnace body; the lining permanent layer 101c is positioned at the outermost layer and used for forming external protection; preferably, a water cooling passage may be provided inside the permanent lining layer 101c to perform external cooling by circulating water.

The furnace body 101 is provided with a furnace opening 101d and a tap hole 101e in a wall thereof, and an outwardly extending tap hole 101f is provided outside the tap hole 101 e.

The furnace body 101 has a melting chamber 101g inside, and forms a molten pool 101h for accumulating molten alloy in a space portion below the taphole 101d and the tap hole 101 e.

Further, each of the C-shaped seal rings 201 of the present invention has a C-shaped structure, and a bayonet K having an opening at one side is formed at the center, and has an inner diameter matched with the outer diameter of the electrode 103 and an outer diameter matched with the inner diameter of the electrode hole 102 a. Meanwhile, the plurality of C-shaped seal rings 201 are alternately stacked in reverse directions to form a stacked body Z having an axial through hole at the center.

Each electrode 103 passes through an axial through hole at the center of each stack Z.

The inner diameter of the axial through hole of the stack Z is fitted to the outer diameter of the electrode 103, the outer diameter of the stack Z is fitted to the inner diameter of the electrode hole 102a, and the assembled stack Z can be fitted in the annular gap between the electrode hole 102a and the electrode 103.

In the stack Z, the liquid inlet 201 b/liquid outlet 201C of one C-shaped seal ring 201 is aligned with the liquid outlet 201C/liquid inlet 201b of another adjacent C-shaped seal ring 201, so that the C-shaped cavity chambers 201a inside the respective C-shaped seal rings 201 are communicated with each other to form a rotary flow channel D of the stack Z.

The invention sets the following steps: the C-shaped sealing ring 201 positioned at the upper end of the stacked body Z is an initial sealing ring T-1, and a liquid inlet 201b of the C-shaped sealing ring is used as an initial liquid inlet of the whole stacked body Z;

the C-shaped seal ring 201 at the lower end of the stacked body Z is an end seal ring T-2, and the liquid outlet 201C thereof serves as an end liquid outlet of the entire stacked body Z.

The initial liquid inlet is externally connected with a liquid inlet pipe, and the tail end liquid outlet is externally connected with a liquid discharge pipe, so that the liquid inlet pipe, the rotary circulation channel D and the liquid discharge pipe can jointly form a circulation loop for circulating cooling.

Further, the C-shaped sealing ring 201 includes a semicircular ring segment 201d and a pair of extension segments 201e respectively located at two ends of the semicircular ring segment 201 d. The semicircular ring section 201d is of a semicircular structure (the outlines of the inner side wall and the outer side wall are both semicircular curved side walls), the outer side wall of the extension section 201e is smoothly connected with the outer side wall of the semicircular ring section 201d, and a major arc outline with a central angle larger than 180 degrees is formed together; the inner side wall of the extension section 201e is tangent to the end part of the inner side wall of the semicircular ring section 201d to form smooth connection, and the width of the extension section 201e is equal to the inner diameter of the semicircular ring section 201 d.

In this way, when the electrode sealing ring 200 is replaced and assembled, the bayonet K of each C-shaped sealing ring 201 can be aligned with the electrode 103 and clamped, and thus, the left and right sides are sequentially and alternately clamped into the C-shaped sealing rings 201 and stacked from top to bottom to form a stacked body Z, and finally, the stacked body Z is tightened and fixed by the tightening member 202 and then is integrally embedded into the annular gap between the electrode hole 102a and the electrode 103. Therefore, the electrode sealing ring 200 can be easily replaced without moving the original position of each electrode 103 inserted on the furnace cover 102.

In addition, another function of the bayonet K is: the presence of the bayonet K prevents each electrode seal ring 200 alone from forming a full ring structure, thereby avoiding the loss of electrical energy due to the closed magnetic circuit surrounding the electrodes.

Further, the present invention sets: the overlapping part of the projections of the adjacent C-shaped sealing rings 201 in the axial direction is the overlapping area J of the respective C-shaped sealing rings 201. Since two adjacent C-shaped seal rings 201 are oppositely overlapped, the overlapping region J of each C-shaped seal ring 201 is located at both end portions of the C-shaped configuration thereof.

In the invention, the liquid inlet 201b and the liquid outlet 201C of each C-shaped sealing ring 201 except the terminal sealing ring T-2 are respectively arranged at two overlapping areas J at two ends of the semicircular segment 201d, and the liquid inlet 201b and the liquid outlet 201C are respectively positioned on the front side surface and the back side surface of the C-shaped sealing ring 201.

The inlet port 201b of the end seal T-2 is also disposed at the overlapping region J, but the position of the outlet port 201c of the end seal T-2 is not limited.

Based on the above, the rotary flow channel D formed by the mutual communication inside each C-shaped seal ring 201 of the present invention can form an approximately spiral rotary channel, which can greatly optimize the flow path of cold water in the electrode seal ring 200, form a good flow guide channel, and improve the cooling efficiency.

Further, the electrode seal ring 200 further includes a plurality of C-shaped insulating rings 203 corresponding to the respective C-shaped seal rings 201.

The C-shaped insulating ring 203 includes a filling segment 203a spliced with the C-shaped sealing ring 201 and a pair of insulating segments 203b respectively located at both ends of the filling segment 203 a.

One side surface of each C-shaped seal ring 201 is recessed in the axial direction at a region corresponding to the overlap region J to form a shallow accommodation region 201 f.

When any one of the C-shaped insulating rings 203 is spliced with the corresponding C-shaped sealing ring 201, the isolation section 203b can be just embedded into the corresponding shallow accommodating area 201f to form complementation and isolated between the adjacent pair of C-shaped insulating rings 203, and the filling section 203a and the C-shaped sealing ring 201 can jointly enclose to form a closed complete annular structure.

Therefore, the C-shaped insulating rings 203 can be made of the existing high-temperature-resistant insulating material, so that the adjacent C-shaped insulating rings 203 can be isolated and insulated from each other, the generation of a closed magnetic circuit caused by the formation of a substantial 'whole ring structure' is avoided, and the electric energy loss is reduced.

It should be noted that: if the butted part of the C-shaped insulating ring 203 and the C-shaped sealing ring 201 just covers the liquid inlet 201 b/the liquid outlet 201C, a liquid passing hole 203b-1 needs to be formed at the corresponding position on the C-shaped insulating ring 203, so as to ensure the smoothness of the rotary flow channel D.

Further, the C-shaped insulating ring 203 has two types, specifically, the two types are divided into a first C-shaped insulating ring H-1 spliced with the end seal ring T-2 and a plurality of second C-shaped insulating rings H-2 spliced with other C-shaped seal rings 201 one by one.

The first C-shaped insulating ring H-1 and the second C-shaped insulating ring H-2 have the same main structure (both include a filling segment 203a and a pair of insulating segments 203b at both ends thereof), except that:

the isolation section 203b of the second C-shaped insulating ring H-2 is provided with a liquid passing hole 203b-1 which is opposite to the liquid outlet 201C of the corresponding C-shaped sealing ring 201. And the first C-shaped insulating ring H-1 is not provided with the liquid passing hole 203 b-1.

A first radial inwards concave limiting groove C-1 is formed in the periphery of the filling section 203a of the second C-shaped insulating ring H-2; meanwhile, the periphery of the semicircular ring segment 201d of each C-shaped sealing ring 201 except the tail end sealing ring T-2 is provided with a second limiting groove C-2 which is concave in the radial direction; when the respective C-shaped seal rings 201 and the C-shaped insulating rings 203 thereof are sequentially stacked to form a stacked body Z, a pair of grooves C-3 having through upper ends and being symmetrical to each other are formed at both sides of the stacked body Z.

The first C-shaped insulating ring H-1 is not provided with a first limiting groove C-1; a filling section 203a of the first C-shaped insulating ring H-1 is provided with a threaded connector 203a-1 corresponding to one groove C-3; the liquid outlet 201C and the liquid inlet 201b of the end sealing ring T-2 are positioned on the same side face of the first C-shaped insulating ring H-1, a threaded connection nozzle 201C-1 corresponding to the other groove C-3 is arranged on the liquid outlet 201C, and the threaded connection nozzle 201C-1 is communicated with a C-shaped cavity 201a in the end sealing ring T-2.

The take-up member 202 includes a take-up rod 202a inserted into one of the grooves C-3 of the stack Z and a take-up tube 202b inserted into the other groove C-3 of the stack Z, both of which are provided at their upper ends with a threaded zone W.

The tightening rod 202a is of a solid rod structure, the lower end of the tightening rod is provided with a screw, and the tightening rod is in threaded connection with the threaded connector 203 a-1; a nut 202C is connected to the upper end of the tightening rod 202a for rotating and pressing each of the C-rings 201 and the C-insulating rings 203 thereof on the side.

The tightening pipe 202b is a hollow pipe structure, the lower end of the tightening pipe is provided with internal threads, the tightening pipe is in threaded connection with the threaded connection nozzle 201c-1, and the interior of the tightening pipe is communicated; a nut 202C is connected to the upper end of the tightening tube 202b for rotating and pressing each of the C-rings 201 and the C-insulating rings 203 thereof.

Therefore, the tightening pipe 202b not only has a function of draining water, but also has a function of tightening the C-shaped seal rings 201 and the C-shaped insulating ring 203.

Further, a water inlet joint 204 (preferably integrally formed) may be fixed to the liquid inlet 201b of the initial sealing ring T-1, and serves as a water inlet of the rotary flow channel D and may be externally connected to a liquid inlet pipe.

The upper end of the tightening pipe 202b forms a water outlet joint 202b-1 which is used as a drainage port of the rotary flow channel D and can be externally connected with a drainage pipe.

Furthermore, two ends of a liquid passing hole 203b-1 of the second C-shaped insulating ring H-2 are provided with an outer convex ring 203 b-2; meanwhile, a circle of O-shaped sealing ring 201g is arranged on the side wall of each exposed liquid inlet 201b and liquid outlet 201C of the C-shaped sealing ring 201; when the second C-shaped insulating ring H-2 is spliced and attached to the C-shaped sealing ring 201, the outer convex ring 203b-2 can be partially embedded into the liquid inlet 201b or the liquid outlet 201C and pressed against the corresponding O-shaped sealing ring 201g, so that the sealing performance of the liquid passing can be ensured.

Further, as shown in fig. 4 to 6, the upper ends of the tightening rod 202a and the tightening pipe 202b are respectively connected with a pressing ring 202d through threads; the compression ring 202d has a screw hole at the center thereof to be fitted to the threaded region W.

A circle of annular bulge 102c is arranged on the periphery of the upper end of the electrode hole 102a, and an annular limiting slope 102c-1 is arranged on the edge of the upper end of the inner side surface of the annular bulge 102 c; when the electrode seal ring 200 is inserted into the electrode hole 102a, the outer edge of the press ring 202d can rest on the annular stop ramp 102 c-1.

The annular bulge 102c is provided with a pair of sliding grooves 102c-2 which are opposite to each other and are through in the radial direction, and the bottom of the sliding groove 102c-2 is provided with a screw hole 102 c-3.

The tightening member 202 further comprises a sliding block 202e slidably disposed in the sliding groove 102c-2 and a fastening bolt 202f vertically penetrating through the sliding block 202e and connected with the screw hole 102c-3, wherein the sliding block 202e is provided with a strip-shaped through hole 202e-1 corresponding to the fastening bolt 202f, and the strip-shaped through hole 202e-1 is vertically through and extends in the radial direction.

The width of the strip-shaped through hole 202e-1 is matched with the outer diameter of the fastening bolt 202f, and the length is larger than the outer diameter of the fastening bolt 202f, so that the slide block 202e can be adjusted in the radial position in the sliding groove 102c-2, and can be pressed and fixed through the fastening bolt 202f after being adjusted.

The inner end of the slider 202e is provided with a pressing slope 202e-2 opposite to the press ring 202d, and the press ring 202d can be pressed downwards and obliquely through the pressing slope 202 e-2.

According to the above, the slider 202e and the annular limiting slope 102c-1 can define the two press rings 202d at the upper end of the electrode seal ring 200 together, so that the electrode seal ring 200 is integrally fixed in the electrode hole 102 a.

In summary, the electrode seal ring 200 of the present invention has the following beneficial effects:

the electrode is convenient to disassemble, assemble and replace at any time and is completely free from the stroke obstruction of the electrode;

secondly, after the electrode sealing ring is locally burnt, the whole electrode sealing ring does not need to be smoother, and only the sealing ring corresponding to the burnt part needs to be replaced;

thirdly, a roundabout channel which is nearly spiral can be formed, and the sealing advantage of the annular water tank type and the cooling advantage of the serpentine pipe type are combined;

fourthly, the number of the C-shaped sealing rings can be increased or decreased according to actual requirements, different specifications are formed, and the flexible advantage of modularization is achieved;

and fifthly, the C-shaped sealing rings are communicated inside and isolated from each other, so that a closed magnetic circuit is avoided, and the electric energy loss is reduced.

It is important to note that the construction and arrangement of the present application as shown in the various exemplary embodiments is illustrative only. Although only a few embodiments have been described in detail in this disclosure, those skilled in the art who review this disclosure will readily appreciate that many modifications are possible (e.g., variations in sizes, dimensions, structures, shapes and proportions of the various elements, values of parameters (e.g., temperatures, pressures, etc.), mounting arrangements, use of materials, colors, orientations, etc.) without materially departing from the novel teachings and advantages of the subject matter recited in this application. For example, elements shown as integrally formed may be constructed of multiple parts or elements, the position of elements may be reversed or otherwise varied, and the nature or number of discrete elements or positions may be altered or varied. Accordingly, all such modifications are intended to be included within the scope of this invention. The order or sequence of any process or method steps may be varied or re-sequenced according to alternative embodiments. In the claims, any means-plus-function clause is intended to cover the structures described herein as performing the recited function and not only structural equivalents but also equivalent structures. Other substitutions, modifications, changes and omissions may be made in the design, operating conditions and arrangement of the exemplary embodiments without departing from the scope of the present inventions. Therefore, the present invention is not limited to a particular embodiment, but extends to various modifications that nevertheless fall within the scope of the appended claims.

Moreover, in an effort to provide a concise description of the exemplary embodiments, all features of an actual implementation may not be described (i.e., those unrelated to the presently contemplated best mode of carrying out the invention, or those unrelated to enabling the invention).

It should be appreciated that in the development of any such actual implementation, as in any engineering or design project, numerous implementation-specific decisions may be made. Such a development effort might be complex and time consuming, but would nevertheless be a routine undertaking of design, fabrication, and manufacture for those of ordinary skill having the benefit of this disclosure, without undue experimentation.

It should be noted that the above-mentioned embodiments are only for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, which should be covered by the claims of the present invention.

Claims

1. A smelting device applied to a nanocrystalline magnetically soft alloy material is characterized in that: comprises the steps of (a) preparing a mixture of a plurality of raw materials,

the smelting main body (100) comprises a furnace body (101) and a furnace cover (102) covering the top of the furnace body (101), wherein at least one electrode hole (102a) is formed in the furnace cover (102); and the number of the first and second groups,

the electrode sealing ring (200) is detachably installed and fixed in the electrode hole (102a), and the electrode sealing ring (200) comprises a plurality of C-shaped sealing rings (201) which are sequentially stacked and a tightening piece (202) which tightens and fixes each C-shaped sealing ring (201); a C-shaped cavity (201a) is arranged in each C-shaped sealing ring (201), and a through liquid inlet (201b) and a through liquid outlet (201C) are further arranged on each C-shaped sealing ring (201); the liquid inlet (201 b)/liquid outlet (201C) of the C-shaped sealing ring (201) is opposite to the liquid outlet (201C)/liquid inlet (201b) of another adjacent C-shaped sealing ring (201), so that the C-shaped cavities (201a) of every two adjacent C-shaped sealing rings (201) are communicated with each other.

2. A smelting apparatus as claimed in claim 1, applied to a nanocrystalline magnetically soft alloy material, wherein: the furnace cover (102) comprises an annular cover plate (G-1), a central top plate (G-2) fixed at the center of the annular cover plate (G-1), and a furnace cover ring (G-3) arranged on the periphery of the annular cover plate (G-1) along the circumferential direction; the furnace cover (102) is buckled at the top of the furnace body (101) through the furnace cover ring (G-3); the electrode hole (102a) is located on the central top plate (G-2).

3. Smelting apparatus as claimed in claim 1 or 2, applied to a nanocrystalline magnetically soft alloy material, wherein: the furnace body (101) comprises a furnace lining working layer (101a), a furnace lining heat-insulating layer (101b) and a furnace lining permanent layer (101c) from inside to outside;

a furnace mouth (101d) and a steel tapping hole (101e) are arranged on the furnace wall of the furnace body (101), and an outward-extending steel tapping groove (101f) is arranged outside the steel tapping hole (101 e);

the furnace body (101) has a melting chamber (101g) therein, and a molten pool (101h) is formed in a space portion below the taphole (101d) and the tap hole (101 e).

4. Smelting apparatus as claimed in claim 1 or 2, applied to a nanocrystalline magnetically soft alloy material, wherein: the plurality of C-shaped sealing rings (201) are sequentially and alternately stacked in the opposite direction, and can jointly form a stacked body (Z) with an axial through hole in the center;

the smelting body (100) further comprises a plurality of electrodes (103) passing through axial through holes at the centre of each stack (Z);

the inner diameter of the axial through hole of the stacked body (Z) is fitted to the outer diameter of the electrode (103), and the outer diameter of the stacked body (Z) is fitted to the inner diameter of the electrode hole (102 a).

5. A smelting apparatus as claimed in claim 4, applied to a nanocrystalline magnetically soft alloy material, wherein: c-shaped chambers (201a) in the C-shaped sealing rings (201) are communicated with each other to form a rotary flow channel (D) in the stacked body (Z);

the C-shaped sealing ring (201) positioned at the upper end of the stacked body (Z) is an initial sealing ring (T-1), and a liquid inlet (201b) of the C-shaped sealing ring is used as an initial liquid inlet of the whole stacked body (Z);

the C-shaped sealing ring (201) positioned at the lower end of the stacked body (Z) is an end sealing ring (T-2), and a liquid outlet (201C) of the C-shaped sealing ring is used as an integral end liquid outlet of the stacked body (Z).

6. A smelting apparatus as claimed in claim 5, applied to a nanocrystalline magnetically soft alloy material, wherein: the C-shaped sealing ring (201) comprises a semicircular ring section (201d) and a pair of extension sections (201e) which are respectively positioned at two ends of the semicircular ring section (201d), so that a bayonet (K) with an opening at one side is formed at the center of the C-shaped sealing ring (201);

the outlines of the inner side wall and the outer side wall of the semicircular ring section (201d) are semicircular curved side walls;

the outer side wall of the extension section (201e) is smoothly connected with the outer side wall of the semicircular section (201d) to form a major arc profile with a central angle larger than 180 degrees;

the inner side wall of the extension section (201e) is tangent to the end part of the inner side wall of the semicircular ring section (201d) to form smooth connection, and the width of the extension section (201e) is equal to the inner diameter of the semicircular ring section (201 d).

7. Smelting apparatus as claimed in claim 6, applied to a nanocrystalline magnetically soft alloy material, wherein: the overlapped parts of the adjacent C-shaped sealing rings (201) projected on the axial direction are the overlapped areas (J) of the respective C-shaped sealing rings (201);

liquid inlets (201b) and liquid outlets (201C) of other C-shaped sealing rings (201) except the tail end sealing ring (T-2) are respectively arranged at two overlapping areas (J) at two ends of the semicircular ring section (201d), and the liquid inlets (201b) and the liquid outlets (201C) are respectively positioned on the front side surface and the back side surface of the C-shaped sealing ring (201);

the liquid inlet (201b) of the end sealing ring (T-2) is arranged at the overlapping area (J) of the end sealing ring.

8. Smelting apparatus as claimed in claim 7, applied to a nanocrystalline magnetically soft alloy material, wherein: the stack (Z) further comprises a plurality of C-shaped insulating rings (203) corresponding to the respective C-shaped sealing rings (201);

the C-shaped insulating ring (203) comprises a filling section (203a) spliced with the C-shaped sealing ring (201) and a pair of isolation sections (203b) respectively positioned at two ends of the filling section (203 a);

one side surface of each C-shaped sealing ring (201) is inwards concave along the axial direction at a region corresponding to the overlapping region (J) to form a shallow accommodating region (201 f);

when the C-shaped insulating rings (203) are spliced with the corresponding C-shaped sealing rings (201), the isolation sections (203b) can be embedded into the corresponding shallow accommodating areas (201f) to form complementation and isolated between the adjacent pair of C-shaped insulating rings (203), and the filling sections (203a) and the C-shaped sealing rings (201) can jointly enclose to form a closed complete ring.

9. The smelting device applied to the nanocrystalline magnetically soft alloy material according to any one of claims 6 to 8, characterized in that: the C-shaped insulating ring (203) is divided into a first C-shaped insulating ring (H-1) spliced with the end sealing ring (T-2) and a plurality of second C-shaped insulating rings (H-2) spliced with other C-shaped sealing rings (201) one by one;

the first C-shaped insulating ring (H-1) and the second C-shaped insulating ring (H-2) respectively comprise a filling section (203a) and a pair of isolation sections (203b) at two ends of the filling section;

an isolation section (203b) of the second C-shaped insulating ring (H-2) is provided with a liquid passing hole (203b-1) which is opposite to a liquid outlet (201C) of the corresponding C-shaped sealing ring (201); the first C-shaped insulating ring (H-1) is not provided with a liquid passing hole (203 b-1);

a first limiting groove (C-1) which is radially inwards concave is arranged on the periphery of the filling section (203a) of the second C-shaped insulating ring (H-2); the periphery of the semicircular ring section (201d) of each C-shaped sealing ring (201) except the tail end sealing ring (T-2) is provided with a second limiting groove (C-2) which is concave in the radial direction; when each C-shaped sealing ring (201) and the C-shaped insulating ring (203) thereof are sequentially stacked to form a stacked body (Z), a pair of grooves (C-3) with penetrating upper ends and symmetrical to each other are formed on two sides of the stacked body (Z);

a filling section (203a) of the first C-shaped insulating ring (H-1) is provided with a threaded connector (203a-1) corresponding to one groove (C-3); a liquid outlet (201C) and a liquid inlet (201b) of the tail end sealing ring (T-2) are positioned on the same side face of the first C-shaped insulating ring (H-1), a threaded connection nozzle (201C-1) corresponding to the other groove (C-3) is arranged on the liquid outlet (201C), and the threaded connection nozzle (201C-1) is communicated with a C-shaped cavity chamber 201a in the tail end sealing ring (T-2);

the tightening member (202) comprises a tightening rod (202a) inserted into one groove (C-3) of the stack (Z) and a tightening tube (202b) inserted into the other groove (C-3) of the stack (Z), both of which are provided with a threaded zone (W) at their upper ends;

the tightening rod (202a) is of a solid rod structure, the lower end of the tightening rod is provided with a screw, and the tightening rod is in threaded connection with the threaded connector (203 a-1); the upper end of the tightening rod (202a) is connected with a nut (202C) which can rotate and press each C-shaped sealing ring (201) and the C-shaped insulating ring (203) on the side;

the tightening pipe (202b) is of a hollow pipe structure, the lower end of the tightening pipe is provided with internal threads, the tightening pipe is in threaded connection with the threaded connection nozzle (201c-1), and the tightening pipe is communicated with the inside of the tightening pipe; the upper end of the tightening pipe (202b) is connected with a nut (202C) which can rotate and press each C-shaped sealing ring (201) and the C-shaped insulating ring (203) on the side.

10. A smelting apparatus as claimed in claim 9, applied to a nanocrystalline soft magnetic alloy material, wherein: the upper ends of the tightening rod (202a) and the tightening pipe (202b) are respectively connected with a pressing ring (202d) through threads;

a circle of annular bulge (102c) is arranged on the periphery of the upper end of the electrode hole (102a), and an annular limiting slope surface (102c-1) is arranged at the upper end of the inner side surface of the annular bulge (102 c); the outer edge of the press ring (202d) can rest on the annular protrusion (102c) when the electrode seal ring (200) is embedded in the electrode hole (102 a);

a pair of sliding grooves (102c-2) which are opposite to each other and are through in the radial direction are formed in the annular bulge (102c), and screw holes (102c-3) are formed in the bottoms of the sliding grooves (102 c-2);

the tightening piece (202) further comprises a sliding block (202e) arranged in the sliding groove (102c-2) in a sliding mode and a fastening bolt (202f) vertically penetrating through the sliding block (202e) and connected with the screw hole (102c-3), a strip-shaped penetrating opening (202e-1) corresponding to the fastening bolt (202f) is formed in the sliding block (202e), and the strip-shaped penetrating opening (202e-1) is through up and down and extends in the radial direction;

the inner end of the sliding block (202e) is provided with a pressing slope surface (202e-2) right opposite to the pressing ring (202d), and the pressing ring (202d) can be downwards extruded obliquely through the pressing slope surface (202 e-2).