CN217210304U

CN217210304U - Furnace liner protection device of medium frequency induction furnace

Info

Publication number: CN217210304U
Application number: CN202220145713.7U
Authority: CN
Inventors: 焦跟有; 赵月蓉
Original assignee: Baoji Fuxin Nonferrous Metal Products Co ltd
Current assignee: Baoji Fuxin Nonferrous Metal Products Co ltd
Priority date: 2022-01-19
Filing date: 2022-01-19
Publication date: 2022-08-16
Anticipated expiration: 2032-01-19

Abstract

The furnace liner protection device of the medium-frequency induction furnace comprises a furnace body and a furnace cover, wherein the furnace body and the furnace cover are of a multi-layer structure, and the multi-layer structure at least comprises an inner heat-insulating layer and an outer water-cooling layer; the furnace cover is provided with a vacuum channel; the vacuum channel is connected with a vacuumizing device; a crucible is rotatably arranged in the furnace body, a plurality of groups of induction coils are arranged on the outer side of the crucible, and the crucible is driven by a turnover mechanism to turn over so as to pour molten metal in the crucible; a furnace liner protection groove is arranged right below the crucible dumping opening; a support is arranged in the furnace lining protective groove; and erecting a casting mold or a molten metal transfer container by using the bracket. The utility model has the advantages of manual dumping, simple structure, simple and convenient operation, economy and practicality; the furnace pipe protective groove can effectively collect the molten metal liquid which is contained and sputtered, thereby protecting the furnace pipe and preventing the furnace pipe from being damaged.

Description

Furnace liner protection device of medium frequency induction furnace

Technical Field

The utility model belongs to the technical field of mechanical engineering electrical heating crucible furnace, concretely relates to medium frequency induction furnace stove courage protection device.

Background

The medium-frequency induction furnace is an induction furnace with the working frequency within the range of 150-10000 Hz, and has the advantages of high melting speed, high production efficiency, strong adaptability, flexible use, good electromagnetic effect, convenient starting operation and the like. At present, when a crucible of a pouring type medium frequency induction furnace in the furnace body pours molten metal outwards, the risk of splashing exists, and the furnace pipe is easily damaged by the splashed molten metal. In view of this, the following technical solutions are proposed.

SUMMERY OF THE UTILITY MODEL

The utility model provides a technical problem: the utility model provides a medium frequency induction furnace stove courage protection device adopts stove courage guard slot to connect the molten metal of sputtering greatly, solves the easy technical problem who damages by the molten metal of sputtering of formula medium frequency induction furnace stove courage of empting.

The utility model adopts the technical proposal that: the furnace liner protection device of the medium-frequency induction furnace comprises a furnace body and a furnace cover, wherein the furnace body and the furnace cover are of a multi-layer structure, and the multi-layer structure at least comprises an inner heat-insulating layer and an outer water-cooling layer; the furnace cover is provided with a vacuum channel; the vacuum channel is connected with a vacuumizing device; a crucible is rotatably arranged in the furnace body, a plurality of groups of induction coils are arranged on the outer side of the crucible, and the crucible is driven by a turnover mechanism to turn over so as to pour molten metal in the crucible; a furnace liner protection groove is arranged right below the crucible dumping opening; a support is arranged in the furnace lining protective groove; and erecting a casting mold or a molten metal transfer container by using the bracket.

In the above technical solution, further: a bearing seat assembly I is arranged on one side of the furnace cover; a bearing inner ring I of the bearing seat assembly I is coaxially and fixedly connected with the rotating shaft I into a whole; a bearing outer ring I of the bearing seat assembly I is fixedly connected with a furnace cover into a whole through a bearing seat I; the rotating shaft I is coaxially and fixedly connected with the execution tail end of a piston rod of which the air cylinder or the oil cylinder is vertically upward through a shaft end flange; the air cylinder or the oil cylinder is vertically and upwards fixedly arranged on the outer side wall of the furnace body; the furnace cover goes up and down along with the piston rod, and rotates around the rotating shaft I.

In the above technical solution, further: an annular positioning block is arranged at the bottom end of the furnace cover; the top end of the furnace body is provided with an annular positioning groove; the annular positioning block is in splicing fit with the annular positioning groove; and the outer side of the annular positioning block or the inner side of the annular positioning groove is provided with a sealing strip.

In the above technical solution, further: the turnover mechanism comprises a rocking handle and a rotating shaft II; two sides of the rotating shaft II are horizontally and rotatably supported and installed in the furnace body through a bearing seat assembly II; one end of the rotating shaft II extends out of the furnace body, the extending end of the rotating shaft II is fixedly connected with a rocking handle, and the rotating shaft II is driven to rotate through the rocking handle; the part of the center of the rotating shaft II, which is brought into the furnace body, is fixedly connected with a crucible support, and the crucible support is fixedly connected with a crucible so as to drive the crucible to turn over through the rotating shaft II.

In the above technical solution, further: the furnace liner protection groove is horizontally arranged at the bottom of the furnace liner of the furnace body; the upper end of the furnace lining protective groove is open and is used for containing the outward-splashing molten metal from the crucible so as to prevent the furnace lining from being damaged, and the center of the furnace lining protective groove is provided with a slot structure which is integrally formed with the furnace lining protective groove; inserting adaptive mounting upright posts in the slot structure; the top end of the upright post is fastened and connected with the bracket by using a countersunk head screw; the bracket and the upright post form a bracket; and the outer diameter of the bracket is larger than that of the slot structure and smaller than that of the furnace protection groove.

The utility model has the advantages compared with the prior art:

1. the utility model discloses put the support in the stove courage protective tank, place on the support and pour when shifting the container with mould or molten metal, collect and connect the molten metal liquid of outside sputtering greatly through the stove courage protective tank to the protection stove courage prevents that the stove courage from damaging.

2. The utility model discloses the bell adopts cylinder or oil cylinder drive to go up and down to open, opens the rotation that the bell was realized to the back through bearing frame subassembly I, opens light laborsaving convenience, and sealed reliable.

3. The utility model discloses manual tilting mechanism, more electronic tilting mechanism simple structure, convenient operation practices thrift the energy consumption, economical and practical.

4. The utility model discloses stove courage protective tank center fixable support, and the support is fixed firm reliable, and the central support periphery of stove courage protective tank can effectively connect the metal liquid that the sputter goes out greatly, effectively protects the stove courage.

Drawings

FIG. 1 is a schematic structural diagram of the open state of the furnace cover of the present invention;

FIG. 2 is a schematic structural diagram of the closed state of the furnace cover of the present invention;

FIG. 3 is an enlarged detail view of the lifting and turning principle of the furnace lid of FIG. 1;

FIG. 4 is a schematic diagram of the structure of the manual turnover mechanism of the present invention;

FIG. 5 is a longitudinal sectional view of the furnace bladder protection tank of FIG. 4;

FIG. 6 is a perspective view of the furnace bladder protective bath;

in the figure: 1-furnace body, 2-furnace cover, 3-heat-insulating layer, 4-water-cooling layer, 5-vacuum channel, 6-crucible, 7-induction coil, 8-turnover mechanism, 9-furnace liner protection groove and 10-support; 201-bearing housing assembly i; 202-a rotating shaft I, 203-an air cylinder or an oil cylinder, 204-a piston rod, 205-an annular positioning block, 206-an annular positioning groove and 207-a sealing strip; 801-rocking handle, 802-rotating shaft II, 803-bearing seat assembly II, 804-crucible support; 901-slot structure, 902-column, 903-countersunk head screw, 904-bracket.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to fig. 1 to 6 of the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The protection device for the furnace pipe of the medium-frequency induction furnace (shown in figures 1 and 2) comprises a furnace body 1 and a furnace cover 2. The furnace body is cylindrical, and the furnace lid is arc block structure.

The furnace body 1 and the furnace cover 2 are both of a multilayer structure, and the multilayer structure at least comprises an inner heat-insulating layer 3 and an outer water-cooling layer 4. Specifically, the method comprises the following steps: the thermal insulation layer 3 may be ceramic fiber, and the thermal insulation layer may include an inner metal liner. The water cooling layer can adopt a hollow structure to fill water for cooling and can also adopt a cooling coil to realize water-cooling.

The furnace cover 2 is provided with a vacuum channel 5 made of rigid material; the vacuum channel 5 is connected with a vacuum-pumping device through a flexible pipeline for vacuum-pumping so as to carry out vacuum-pumping treatment on the furnace if necessary.

Crucible 6 is rotationally erected in furnace body 1, the outside of crucible 6 is equipped with multiunit induction coil 7, and induction coil 7 is used for the crucible electrical heating.

The crucible 6 drives the crucible 6 to turn over through the turning mechanism 8 so as to pour molten metal in the crucible 6.

It should be noted that: the meaning of the turning mechanism 8 described here includes both an electric turning mechanism and a manual turning mechanism.

The electric turnover mechanism comprises a speed reducing motor and a speed reducing motor power output shaft, wherein the speed reducing motor power output shaft is fixedly connected with the rotating shaft II 802 through a shaft coupling in a coaxial mode, and the rotating shaft II 802 is driven to rotate at a low speed through the speed reducing motor. The rotating shaft II 802 is horizontally rotatably supported and installed in the furnace body 1 through a bearing seat assembly II 803. Indirect fixed mounting crucible 6 on II 802 of pivot rotates through control gear motor low-speed to drive gear motor power take off shaft and II 802 rotations of pivot, thereby realize II 802 of pivot on the automatic upset of crucible 6, thereby empty the molten metal automatically.

The utility model discloses the main improvement lies in: a furnace liner protective groove 9 is arranged right below the pouring opening of the crucible 6. The furnace liner protection groove 9 is used for containing the metal liquid produced by sputtering and preventing the metal liquid from damaging the furnace liner.

A support 10 is arranged in the furnace lining protective groove 9; the support 10 is provided with a casting mold or a molten metal transfer container.

It can be seen that, the utility model discloses put support 10 in stove courage protecting groove 9, when support 10 placed pour with mould or metal liquid shift container, collect and connect the molten metal liquid of sputter greatly through the uncovered structure of stove courage protecting groove 9 to the protection stove courage prevents to spatter the metal liquid stove courage outward and damages.

(as shown in fig. 3) in the above embodiment, further: in order to realize the labor-saving, efficient and reliable cover opening and closing operation of the furnace cover 2: a bearing seat assembly I201 is arranged on one side of the furnace cover 2; a bearing inner ring I of the bearing seat assembly I201 is coaxially and fixedly connected with a rotating shaft I202 into a whole; bearing housing subassembly I201's bearing inner race I links firmly as an organic whole through bearing frame I (not seen in the figure) and bell 2: specifically, the method comprises the following steps: bearing frame I is the same with prior art's mounting structure, and the I internal clamp of bearing frame links firmly bearing inner race I with the bell 2 uses the fastener fastening even as an organic whole in bearing inner race I rethread bearing frame I to realize bearing inner race I and bell 2's integral type and be connected. The rotating shaft I202 is coaxially and fixedly connected with an execution tail end of a piston rod 204 with an air cylinder or oil cylinder 203 facing upwards through a shaft end flange at the bottom of the rotating shaft I202; the rotating shaft I202 is driven to ascend and descend through the air cylinder or the oil cylinder 203, so that the furnace cover 2 with the rotating shaft I202 connected into a whole is driven to ascend and descend. The cylinder or oil cylinder 203 is vertically and upwards fixedly arranged on the outer side wall of the furnace body 1; due to the action of the bearing I, the furnace cover 2 can not only ascend and descend along with the piston rod 204, but also rotate around the rotating shaft I202.

It can be seen that, the utility model discloses bell 2 adopts cylinder or hydro-cylinder 203 drive to go up and down to open, opens the rotation that realizes bell 2 through bearing frame subassembly I201 in back, and opening of bell 2 is light laborsaving convenient.

(as shown in fig. 2) in the above embodiment, further: an annular positioning block 205 is arranged at the bottom end of the furnace cover 2; the top end of the furnace body 1 is provided with an annular positioning groove 206; or the bottom end of the furnace cover 2 is provided with an annular positioning groove, and the top end of the furnace body 1 is provided with an annular positioning block.

The annular positioning block 205 is in plug fit with the annular positioning groove 206; and the sealing strip 207 is arranged outside the annular positioning block 205 or inside the annular positioning groove 206. The sealing strips 207 are used for the compression sealing between the furnace cover 2 and the furnace body 1. The sealing strip 207 of the furnace cover 2 is seen to ensure that the furnace cover 2 is reliably opened and closed.

(as shown in fig. 4) in the above embodiment, further: the turnover mechanism 8 comprises a rocking handle 801 and a rotating shaft II 802; the rocking handle 801 is an L-shaped structure. And the rotating shaft II 802 is a horizontal rotating shaft.

And two sides of the rotating shaft II 802 are horizontally rotatably supported and installed in the furnace body 1 through a bearing seat assembly II 803. Wherein, the bearing seat assembly II 803 is arranged on the side wall of the furnace body 1. Specifically, the method comprises the following steps: for protecting bearing II, the lateral wall of furnace body installation bearing II is equipped with the end cover flange, and the end cover flange is used for sheltering from protection bearing II, the concentric fixed mounting axle sleeve in center of end cover flange, and the axle sleeve is internal to slide and rotate the aforementioned II 802 of adaptation installation pivot, realizes II 802 sealed rotation installations at the end cover flange of pivot promptly through the axle sleeve to protection bearing II.

One end of the rotating shaft II 802 extends out of the furnace body 1, the extending end of the rotating shaft II 802 is fixedly connected with the rocking handle 801, and the rotating shaft II 802 is driven to rotate horizontally through the rocking handle 801; the part of the center of the rotating shaft II 802, which is brought into the furnace body 1, is fixedly connected with a crucible support 804, the crucible support 804 is of a barrel-shaped structure, and the crucible support 804 is fixedly connected with the crucible 6 so as to drive the crucible 6 to turn over through the rotating shaft II 802.

It should be noted that: the crucible 6 and the crucible support 804 can be filled with a thermal insulation layer to prevent the rotating shaft II 802 from being thermally conductive and inoperable.

It is visible, the utility model discloses preferred manual tilting mechanism that adopts, more electronic tilting mechanism simple structure, convenient operation practices thrift the energy consumption, economical and practical.

(as shown in fig. 5 and 6) in the above embodiment, further: the furnace pipe protective groove 9 is horizontally arranged at the bottom of the furnace pipe of the furnace body 1; the upper end of the furnace lining protective groove 9 is open and is used for containing the metal liquid splashed from the crucible 6 so as to prevent the metal liquid from damaging the furnace lining. Specifically, the furnace protection groove 9 may be a graphite crucible.

The center of the furnace lining protective groove 9 is provided with a slot structure 901 which is integrally formed with the furnace lining protective groove 9; the inserting and fitting upright column 902 is inserted into the slot structure 901; namely, the bottom of the upright post 902 is provided with an insert rod, the bottom of the slot structure 901 is provided with a jack, and the insert rod is inserted and matched with the jack, so that the upright post 902 is reliably positioned.

The top end of the upright post 902 is fixedly connected with a bracket 904 by using a countersunk head screw 903; countersunk head screws 903 are used to ensure the flatness of the surface of the bracket 904, so that a casting mold or a molten metal transfer container can be placed stably.

It can be seen that the detachable connection structure of the upright post 902 and the bracket 904 facilitates the replacement of brackets 904 with different models and sizes as required. The bracket 904 and the upright 902 form the bracket 10; the support 10 is used for placing a casting mold or a molten metal transfer container.

The outer diameter of the bracket 904 is larger than that of the slot structure 901, and the outer diameter of the bracket 904 is smaller than that of the furnace protection groove 9. So as to receive the metal liquid which is sputtered outwards through the furnace lining protective groove 9.

Therefore, the support 10 can be fixed at the center of the furnace lining protective groove 9 of the utility model, and the inserting, positioning and fixing mode of the support 10 is firm and reliable; the periphery of the central support 10 of the furnace lining protective groove 9 can effectively contain the metal liquid which is sputtered, thereby effectively protecting the furnace lining.

The utility model discloses a theory of operation does: the lifting of the furnace cover 2 is realized through an air cylinder or an oil cylinder 203, and the rotation of the furnace cover 2 around a rotating shaft I202 is realized through a bearing seat assembly I201. After a metal ingot is put into the crucible 6, the metal ingot is reversely rotated, the furnace cover 2 is reversely rotated and then falls back by using the air cylinder or the oil cylinder 203 to lock the furnace cover 2, then the crucible 6 is electrically heated by the induction coil 7, so that the metal ingot is melted, the metal ingot is opened after being melted into molten metal, the rocking handle 801 is moved, the rocking handle 801 drives the rotating shaft II 802 to turn over, the rotating shaft II 802 drives the crucible support 804 to turn over, the crucible support 804 drives the crucible 6 to turn over and dump the molten metal, and the crucible 6 pours the molten metal in the crucible into a pouring mold or a molten metal transfer container placed on the support 10. Meanwhile, as the furnace lining protective groove 9 is arranged at the bottom of the furnace lining, when the phenomenon of splashing of the molten metal occurs in the process of overturning and dumping the crucible, the splashed molten metal can be effectively collected by the furnace lining protective groove 9, so that the furnace lining is protected from being damaged by the high-temperature molten metal; during the clearance, after the water-cooling of stove courage, take out stove courage protective tank 9, clear up then put back and continue to use stove courage protective tank 9, continuously protect the stove courage not damaged.

In conclusion, the furnace pipe protective groove of the utility model can effectively protect the furnace pipe from being damaged; the furnace cover is labor-saving and convenient to open and close and is reliable in sealing; the metal liquid in the crucible is poured in a manual overturning way, the structure is simple, the operation is convenient, the energy consumption is saved, and the device is economical and practical.

All the embodiments in the present specification are described in a related manner, and the same and similar parts among the embodiments may be referred to each other, and each embodiment focuses on the differences from the other embodiments.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention shall fall within the protection scope of the present invention.

Claims

1. The furnace pipe protection device of the medium-frequency induction furnace comprises a furnace body (1) and a furnace cover (2), wherein the furnace body (1) and the furnace cover (2) are of a multilayer structure, and the multilayer structure at least comprises an inner heat insulation layer (3) and an outer water cooling layer (4); the furnace cover (2) is provided with a vacuum channel (5); the vacuum channel (5) is connected with a vacuumizing device; the method is characterized in that: a crucible (6) is rotatably erected in the furnace body (1), a plurality of groups of induction coils (7) are arranged on the outer side of the crucible (6), and the crucible (6) is driven by a turnover mechanism (8) to turn over so as to dump molten metal in the crucible (6); a furnace lining protective groove (9) is arranged right below the pouring opening of the crucible (6); a support (10) is arranged in the furnace lining protective groove (9); and a casting mold or a molten metal transfer container is erected on the support (10).

2. The furnace pipe protection device of the intermediate frequency induction furnace according to claim 1, characterized in that: a bearing seat assembly I (201) is arranged on one side of the furnace cover (2); a bearing inner ring I of the bearing seat assembly I (201) is coaxially and fixedly connected with the rotating shaft I (202) into a whole; a bearing outer ring I of the bearing seat assembly I (201) is fixedly connected with the furnace cover (2) into a whole through a bearing seat I; the rotating shaft I (202) is coaxially and fixedly connected with the execution tail end of a piston rod (204) with an air cylinder or oil cylinder (203) vertically upward through a shaft end flange; the cylinder or oil cylinder (203) is vertically and upwards fixedly arranged on the outer side wall of the furnace body (1); the furnace cover (2) is lifted along with the piston rod (204), and the furnace cover (2) rotates around the rotating shaft I (202).

3. The furnace pipe protection device of the intermediate frequency induction furnace according to claim 1 or 2, characterized in that: an annular positioning block (205) is arranged at the bottom end of the furnace cover (2); the top end of the furnace body (1) is provided with an annular positioning groove (206); the annular positioning block (205) is in plug fit with the annular positioning groove (206); and the sealing strip (207) is arranged on the outer side of the annular positioning block (205) or the inner side of the annular positioning groove (206).

4. The furnace pipe protection device of the intermediate frequency induction furnace of claim 1, characterized in that: the turnover mechanism (8) comprises a rocking handle (801) and a rotating shaft II (802); two sides of the rotating shaft II (802) are horizontally rotatably supported and installed in the furnace body (1) through a bearing seat assembly II (803); one end of the rotating shaft II (802) extends out of the furnace body (1), the extending end of the rotating shaft II (802) is fixedly connected with the rocking handle (801), and the rotating shaft II (802) is driven to rotate through the rocking handle (801); the rotating shaft II (802) is brought into the center of the part of the furnace body (1) and is fixedly connected with a crucible support (804), and the crucible support (804) is fixedly connected with the crucible (6) so as to drive the crucible (6) to turn over through the rotating shaft II (802).

5. The furnace pipe protection device of the intermediate frequency induction furnace according to claim 1, characterized in that: the furnace liner protection groove (9) is horizontally arranged at the bottom of the furnace liner of the furnace body (1); the upper end of the furnace pipe protective groove (9) is open and is used for containing the metal liquid splashed from the crucible (6) so as to prevent the furnace pipe from being damaged, and the center of the furnace pipe protective groove (9) is provided with a slot structure (901) which is integrally formed with the furnace pipe protective groove (9); the upright posts (902) are inserted and matched in the slot structures (901); the top end of the upright post (902) is fixedly connected with a bracket (904) by using a countersunk head screw (903); the bracket (904) and the upright post (902) form the bracket (10); and the outer diameter of the bracket (904) is larger than that of the slot structure (901) and smaller than that of the furnace protective groove (9).