A submerged arc furnace based on a variable circuit

Abstract

The present invention is applicable to the technical field of electric furnaces, and provides an electric furnace based on a variable circuit, including a furnace body assembly, a top cover assembly slidingly engaged on the top of the furnace body assembly, the furnace body assembly including a furnace body part, a shaking part rotatably engaged inside the furnace body part, a sealing part fixedly mounted on the furnace body part, and a rotating part rotatably engaged on the furnace body part. The device solves the problems that it is difficult for existing electric furnaces to synchronously convert the positive and negative electrode rods of the electric furnace at any time, and it is impossible to synchronously crush and shake the smelting raw materials inside the furnace body, resulting in the smelting raw materials in the furnace body piling up into blocks and the occurrence of hardening. The device achieves and can timely change the electrode characteristics of the two electrode rods, ensure the synchronous roasting of the two electrode rods, and can synchronously crush and shake the smelting raw materials inside the furnace body to avoid the smelting raw materials in the furnace body piling up into blocks. The technical effect.

Description

Technical Field

[0001] The invention relates to the technical field of electric furnaces, and more particularly to an electric furnace based on a variable circuit. Background Art

[0002] The ore-generating furnace is also called arc furnace or resistance furnace. It adopts the submerged arc operation with the electrode inserted into the charge. It is mainly used for reducing smelting ore, carbonaceous reducing agent and solvent and other charges. The ore-generating furnace commonly used in industry is AC arc furnace, which has the disadvantages of unbalanced three-phase power, high noise, large eddy current loss in the conductor due to the strong alternating magnetic field near the large current conductor, and uneven current in the secondary short-net conductor due to the skin effect, large ohmic loss, etc. In order to eliminate the above disadvantages, DC electric heating furnace appeared.

[0003] The existing electric furnaces are prone to the following technical problems during later use:

[0004] It is difficult for the existing ore-fired electric furnace to synchronously switch the positive and negative electrode rods of the electric furnace at any time, which makes it difficult to synchronously roast the positive and negative electrode rods, and it is impossible to synchronously crush and shake the smelting raw materials inside the furnace body, causing the smelting raw materials in the furnace body to accumulate into blocks and become compacted. While reducing the contact between the two electrode rods and the metallurgical raw materials, it also slows down the hot melting efficiency of the metallurgical raw materials. Summary of the invention

[0005] In view of the shortcomings of the prior art, the purpose of the present invention is to provide a variable circuit-based electric furnace that can synchronously crush and shake the smelting raw materials inside the furnace body to prevent the smelting raw materials in the furnace body from piling up into blocks and becoming compacted, thereby improving the contact degree between the two electrode rods and the metallurgical raw materials and also improving the hot melting efficiency of the metallurgical raw materials.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A mineral heat electric furnace based on a variable circuit includes a furnace body assembly, a top cover assembly is slidably engaged on the top of the furnace body assembly, the furnace body assembly includes a furnace body part, a shaking part rotatably engaged inside the furnace body part, a sealing part fixedly mounted on the furnace body part and a rotating part rotatably engaged on the furnace body part, the top cover assembly includes a furnace body top plate, a plurality of extension rods are fixed to the bottom of the furnace body top plate, a plurality of contact balls are fixed to the bottom of the extension rods, two symmetrical vertical plates are fixed to the bottom of the furnace body top plate, and a shift rod is fixed to one side of each of the two vertical plates.

[0008] The furnace body part includes a furnace body, and two symmetrical arc-shaped grooves are penetrated through the outer peripheral side of the furnace body, a positioning ring is fixed on the outer peripheral side of the furnace body below the two arc-shaped grooves, a base plate is fixed to the bottom of the furnace body, and two symmetrical arc-shaped vertical plates are fixed on the top of the base plate.

[0009] The shaking part includes two semicircular rings that are hinged together, and the inner walls of the two semicircular rings are provided with semicircular grooves that slide on the positioning ring. The inner walls of the two semicircular rings are fixed with extension plates that slide inside the arc grooves. A shaking cylinder is fixed to the bottom of the two extension plates by bolts, and the inner wall of the shaking cylinder is provided with two symmetrical spiral grooves that slide with the lever.

[0010] The rotating part includes two semicircular rotating cylinders that are hinged together. The bottom of the two semicircular rotating cylinders is provided with a semi-annular groove that slides on two arc-shaped vertical plates. The top of the two semicircular rotating cylinders is fixed with a semi-annular rotating cylinder. The top of the semi-annular rotating cylinder is provided with a plurality of grooves that are compatible with the contact balls.

[0011] The present invention is further configured as follows: two sets of hydraulic brakes are fixedly and symmetrically arranged on the top of the furnace body top plate, the hydraulic brakes clamp electrode rods that pass through the top of the furnace body top plate, a controller is electrically connected between the two electrode rods and an external power supply, and the controller is electrically connected to the hydraulic brakes and the electrode rods respectively.

[0012] A first ear plate is fixed at one end of each of the two semicircular rings, and the two first ear plates are fixedly connected by bolts.

[0013] A second ear plate is fixed at one end of the two semicircular rotating drums, and the two second ear plates are fixedly connected by bolts.

[0014] The present invention is further configured as follows: two symmetrical guide vertical rods are fixed on the top of the base plate, and two elastic springs are fixed on the top of the base plate and are respectively sleeved and matched on the peripheral sides of the two guide vertical rods, and the top ends of the two elastic springs are fixedly connected to the bottom of the furnace body top plate.

[0015] Two symmetrical guide holes are provided at the bottom of the furnace body top plate, and the two guide holes are respectively slidably matched with the two guide vertical rods.

[0016] The present invention is further configured as follows: the outer walls of the two semi-ring rotating drums are both provided with semi-ring sliding grooves, and the outer walls of the two semi-ring rotating drums are both fixed with semi-ring teeth below the semi-ring sliding grooves.

[0017] A driving motor is fixed on the top of the base plate, and a main gear meshing with two half ring teeth is fixed on the output shaft of the driving motor.

[0018] The present invention is further configured as follows: two symmetrical T-shaped grooves are opened on the top of the base plate, and supporting side plates are fixed to the top of the base plate above the two T-shaped grooves, and telescopic cylinders are fixed to one side of the two supporting side plates, and L-shaped movable plates are fixed to the telescopic ends of the telescopic cylinders, and an arc-shaped limiting plate that slides with the semi-ring sliding groove is fixed to one side of the L-shaped movable plate away from the outer wall of the arc-shaped vertical plate, and the L-shaped movable plate slides with the T-shaped groove.

[0019] The present invention is further configured as follows: a crushing rod is fixed to the bottom of the furnace body top plate between the two electrode rods, a plurality of supporting top plates are fixed to the side surfaces of the crushing rod in a linear array, an extending vertical rod is fixed to the bottom of the supporting top plate, and a crushing cone is fixed to the bottom end of the extending vertical rod.

[0020] A plurality of rectangular plates are fixed to the inner wall of the shaking cylinder near the bottom, a plurality of the rectangular plates are fixed to the bottom with a shaking rod, and a plurality of shaking blades are fixed to the side surface of the shaking rod in a linear array.

[0021] The present invention is further configured as follows: a conical cover is fixed to the inner wall of the furnace body below the two arc-shaped grooves, a positioning ring plate is fixed to the outer wall of the furnace body below the positioning ring, a plurality of first sliding grooves that slide with the extension rod are provided on the peripheral side of the positioning ring plate, an annular sealing groove is provided on the top of the positioning ring plate, and a plurality of threaded columns are fixed to the top of the positioning ring plate.

[0022] The seal includes a fixed ring, a ring-shaped sealing rail fixed at the bottom of the fixed ring and engaging with the ring-shaped sealing groove, a plurality of positioning holes inserted into the threaded column are opened through the top of the fixed ring, and a plurality of second sliding grooves are opened on the side surface of the fixed ring and respectively engage with the extension rod for sliding.

[0023] The present invention is further configured as follows: a first sleeve is fixed on the top of the fixing ring.

[0024] A second sleeve is fixed at the bottom of the furnace top plate inside a plurality of extension rods, a third sleeve is fixed at the bottom of the furnace top plate inside the second sleeve, a first annular groove is provided at the bottom of the second sleeve for sliding fit on the first sleeve, and a second annular groove is provided at the bottom of the third sleeve for sliding fit with the furnace top.

[0025] The present invention is further configured as follows: a feed pipe is provided on the outer peripheral side of the furnace body near the top, an air pressure pipe is provided on the outer peripheral side of the furnace body near the top, a discharge pipe is provided on the outer peripheral side of the furnace body near the bottom and below the rotating part, an air pressure valve is provided on the side surface of the air pressure pipe, and electromagnetic valves are provided on the side surfaces of both the feed pipe and the discharge pipe.

[0026] The advantages of the present invention are:

[0027] 1. The present invention drives the entire top cover assembly to move back and forth up and down on the top of the furnace body through the reciprocating up and down movement of the furnace body top plate on the top of the furnace body, so as to crush and evenly mix the smelting raw materials in the middle of the furnace body, thereby preventing the smelting raw materials in the middle of the furnace body from piling up into blocks and forming agglomerations. While improving the contact degree between the two electrode rods and the metallurgical raw materials, the hot melting efficiency of the metallurgical raw materials is also improved.

[0028] 2. The present invention drives the levers fixed on one side of the two vertical plates to slide repeatedly clockwise or counterclockwise inside the two spiral grooves through the process of the entire top cover assembly moving back and forth on the top of the furnace body, thereby driving the two hinged and fixed semicircular rings to rotate repeatedly clockwise or counterclockwise on the positioning ring, so that the entire shaking part repeatedly rotates clockwise or counterclockwise inside the furnace body, thereby preventing the smelting raw materials at the edge of the furnace body from piling up into blocks and causing hardening. While improving the contact degree between the two electrode rods and the metallurgical raw materials, the hot melting efficiency of the metallurgical raw materials is also improved.

[0029] 3. The present invention controls the positive and negative conversion of the two electrode rods through a controller electrically connected between the two electrode rods and an external power supply, thereby timely changing the electrode characteristics of the two electrode rods, realizing timely conversion of the positive electrode rod and the negative electrode rod, ensuring the synchronous roasting of the electrode rods during the production process, and effectively avoiding or reducing the accident of broken electrode rods, ensuring the smooth progress of production, and at the same time improving the hot melting efficiency of the electric furnace and extending the service life of the entire electric furnace. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 The present invention is a schematic structural diagram of a ore-fired electric furnace based on a variable circuit.

[0031] Figure 2 It is a structural schematic diagram of the furnace body assembly of the present invention.

[0032] Figure 3 It is a front view of the furnace body assembly of the present invention.

[0033] Figure 4 It is a schematic structural diagram of the top cover assembly of the present invention.

[0034] Figure 5 It is a front view of the top cover assembly of the present invention.

[0035] Figure 6 It is a front view of the furnace body of the present invention.

[0036] Figure 7 It is a structural schematic diagram of the furnace body of the present invention.

[0037] Figure 8 It is a schematic structural diagram of the shaking member of the present invention.

[0038] Fig. 9 It is a schematic structural diagram of the shaking element of the present invention from another angle.

[0039] Fig.10 It is a schematic structural diagram of the sealing member of the present invention.

[0040] Fig.11 It is a schematic structural diagram of the rotating part of the present invention.

[0041] In the figure: 1, furnace body assembly; 2, top cover assembly; 3, furnace body member; 4, shaking member; 5, sealing member; 6, rotating member; 201, furnace body top plate; 202, extension rod; 203, contact ball; 204, vertical plate; 205, lever; 206, hydraulic brake; 207, electrode rod; 208, second annular slide groove; 209, guide hole; 210, pounding rod; 211, support top plate; 212, Extension vertical rod; 213, crushing cone; 214, second sleeve; 215, third sleeve; 216, first annular chute; 301, furnace body; 302, arc groove; 303, positioning ring; 304, base plate; 305, arc vertical plate; 306, guide vertical rod; 307, elastic spring; 308, drive motor; 309, main gear; 310, T-shaped groove; 311, support side plate; 312 , telescopic cylinder; 313, L-shaped moving plate; 314, arc-shaped limit plate; 315, conical cover; 316, positioning ring plate; 317, first slide groove; 318, annular sealing groove; 319, threaded column; 320, feed pipe; 321, air pressure pipe; 322, discharge pipe; 401, semicircular ring; 402, semicircular groove; 403, extension plate; 404, shaking cylinder; 405, spiral groove; 406, first ear plate; 407, rectangular plate; 408, shaking rod; 409, shaking blades; 501, fixing ring; 502, annular sealing rail; 503, positioning hole; 504, first sleeve; 505, second slide groove; 601, semicircular rotating cylinder; 602, semi-annular groove; 603, semi-annular rotating cylinder; 604, groove; 605, second ear plate; 606, semi-annular slide groove; 607, semi-annular teeth. DETAILED DESCRIPTION

[0042] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application may be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0043] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meanings as commonly understood by ordinary technicians in the technical field to which this application belongs.

[0044] In the present invention, unless otherwise specified, the directions used, such as "up" and "down", usually refer to the directions shown in the drawings, or to the vertical, perpendicular or gravity directions; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the drawings; "inside" and "outside" refer to the inside and outside relative to the outline of each component itself, but the above-mentioned directions are not used to limit the present invention.

[0045] For example, see Figure 1-11 , the present invention provides the following technical solutions:

[0046] A mineral heat electric furnace based on a variable circuit, specifically, comprises a furnace body assembly 1, the top of the furnace body assembly 1 is slidably matched with a top cover assembly 2, the furnace body assembly 1 comprises a furnace body part 3, a shaking part 4 rotatably matched inside the furnace body part 3, a sealing part 5 fixedly mounted on the furnace body part 3 and a rotating part 6 rotatably matched with the furnace body part 3, the top cover assembly 2 comprises a furnace body top plate 201, a plurality of extension rods 202 are fixed at the bottom of the furnace body top plate 201, a plurality of contact balls 203 are fixed at the bottom of the plurality of extension rods 202, two symmetrical vertical plates 204 are fixed at the bottom of the furnace body top plate 201, and a lever 205 is fixed on one side of the two vertical plates 204; the furnace body part 3 comprises a furnace body 301, two symmetrical arc grooves 302 are penetrated through the outer peripheral side surface of the furnace body 301, a positioning ring 303 is fixed to the outer peripheral side surface of the furnace body 301 below the two arc grooves 302, and a base plate 3 is fixed to the outer bottom of the furnace body 301 04, two symmetrical arc-shaped vertical plates 305 are fixed on the top of the base plate 304; the shaking member 4 includes two hinged semi-circular rings 401, the inner walls of the two semi-circular rings 401 are provided with semi-circular grooves 402 that slide on the positioning ring 303, the inner walls of the two semi-circular rings 401 are fixed with extension plates 403 that slide inside the arc-shaped grooves 302, and a shaking cylinder 404 is fixed to the bottom of the two extension plates 403 by bolts, and two symmetrical spiral grooves 405 are provided on the inner wall of the shaking cylinder 404, and the spiral grooves 405 slide with the lever 205; the rotating member 6 includes two hinged semi-circular rotating cylinders 601, the bottoms of the two semi-circular rotating cylinders 601 are provided with semi-circular grooves 602 that slide on the two arc-shaped vertical plates 305, and the tops of the two semi-circular rotating cylinders 601 are fixed with semi-circular rotating cylinders 603, and the tops of the semi-circular rotating cylinders 603 are provided with a plurality of grooves 604 that match the contact balls 203.

[0047] The specific application of this embodiment 1 is:

[0048] During the process of electrically heating the smelting raw materials, the entire ore-fired electric furnace drives the contact balls 203 to slide in the grooves 604 in sequence and synchronously through the circumferential rotation of the two hinged semicircular drums 601 on the two arc-shaped vertical plates 305, so as to realize the sliding out and sliding in of the grooves 604 respectively and synchronously, thereby making the contact balls 203 synchronously lift and reciprocate, and finally realize the reciprocating up and down movement of the furnace body top plate 201 on the top of the furnace body 301. During the reciprocating up and down movement of the furnace body top plate 201, the entire top cover assembly 2 is finally driven to reciprocate up and down movement on the top of the furnace body 301, so as to crush and shake the smelting raw materials in the middle of the furnace body 301, and prevent the smelting raw materials in the middle of the furnace body 301 from piling up and forming agglomeration, thereby improving the contact degree between the two electrode rods 207 and the metallurgical raw materials, and also improving the hot melting efficiency of the metallurgical raw materials;

[0049] When the entire top cover assembly 2 moves back and forth up and down on the top of the furnace body 301, it drives the two hinged semicircular rings 401 to repeatedly rotate clockwise or counterclockwise on the positioning ring 303 through the sliding cooperation between the levers 205 fixed on one side of the two vertical plates 204 and the two spiral grooves 405 (the opposite end faces of the two levers 205 are respectively provided with semicircular balls, so that the two levers 205 can slide inside the two spiral grooves 405 respectively). This ultimately drives the entire shaking part 4 to repeatedly rotate clockwise or counterclockwise inside the furnace body 301, thereby preventing the smelting raw materials at the edge of the furnace body 301 from piling up into blocks and becoming hardened, thereby improving the contact degree between the two electrode rods 207 and the metallurgical raw materials and the hot melting efficiency of the metallurgical raw materials.

[0050] For example 2, please refer to Figure 1-11The second embodiment is improved on the basis of the first embodiment as follows. Specifically, two groups of hydraulic brakes 206 are fixedly and symmetrically arranged on the top of the furnace body top plate 201. The hydraulic brakes 206 clamp an electrode rod 207 that runs through the top of the furnace body top plate 201. A controller is electrically connected between the two electrode rods 207 and an external power supply. The controller is electrically connected to the hydraulic brake 206 and the electrode rod 207 respectively; a first ear plate 406 is fixed at one end of the two semicircular rings 401, and the two first ear plates 406 are fixedly connected by bolts; a second ear plate 605 is fixed at one end of the two semicircular rotating cylinders 601, and the two second ear plates 605 are fixedly connected by bolts; two symmetrical guide vertical rods 306 are fixed on the top of the base plate 304, and two elastic springs 307 are respectively sleeved and matched on the sides of the two guide vertical rods 306. The tops of the two elastic springs 307 are fixedly connected to the bottom of the furnace top plate 201; two symmetrical guide holes 209 are opened at the bottom of the furnace top plate 201, and the two guide holes 209 are respectively slidably matched with the two guide vertical rods 306; the outer walls of the two semi-ring rotating cylinders 603 are opened with semi-ring sliding grooves 606, and the outer walls of the two semi-ring rotating cylinders 603 are fixed below the semi-ring sliding grooves 606. Ring gear 607; a driving motor 308 is fixed on the top of the base plate 304, and a main gear 309 meshing with the two half ring gears 607 is fixed on the output shaft of the driving motor 308; two symmetrical T-shaped grooves 310 are opened on the top of the base plate 304, and a supporting side plate 311 is fixed on the top of the base plate 304 above the two T-shaped grooves 310, and a telescopic cylinder 312 is fixed on one side of the two supporting side plates 311, and an L-shaped moving plate 313 is fixed on the telescopic end of the telescopic cylinder 312, and an arc-shaped movable plate 313 is fixed on one side of the L-shaped moving plate 313 away from the outer wall of the arc-shaped vertical plate 305 to slide with the semi-ring slide groove 606 The limiting plate 314 and the L-shaped movable plate 313 are slidably matched with the T-shaped slot 310; a crushing rod 210 is fixed to the bottom of the furnace body top plate 201 between the two electrode rods 207, and a plurality of supporting top plates 211 are fixed to the sides of the crushing rod 210 in a linear array, an extending vertical rod 212 is fixed to the bottom of the supporting top plate 211, and a crushing cone 213 is fixed to the bottom end of the extending vertical rod 212; a plurality of rectangular plates 407 are fixed to the inner wall of the shaking cylinder 404 near the bottom, and a shaking rod 408 is fixed to the bottom of the plurality of rectangular plates 407, and a plurality of shaking fan blades 409 are fixed to the sides of the shaking rod 408 in a linear array.

[0051] The specific application of this second embodiment is:

[0052] In the process of electrically heating the smelting raw materials, the controller electrically connected between the two electrode rods 207 and the external power supply controls the positive and negative pole conversion of the two electrode rods 207, thereby timely changing the electrode characteristics of the two electrode rods 207 to realize the timely conversion of the positive electrode rod 207 and the negative electrode rod 207. When the positive and negative poles of the two electrode rods 207 are converted, the controller controls the conversion circuit switch in the controller to change the positive and negative pole relationship of the two electrode rods 207, thereby reciprocatingly changing the positive and negative poles of the two electrode rods 207 to realize the conversion control process of the circuit of the two electrode rods 207. During the whole process, the switching control of the circuits of the two electrode rods 207 is performed to ensure the synchronous baking of the electrode rods 207 during the production process, which can effectively avoid or reduce the accident of broken electrode rods 207, ensure the smooth progress of production, and at the same time improve the hot melting efficiency of the ore-fired electric furnace, thereby extending the service life of the entire ore-fired electric furnace (the positive and negative pole switching process of the two electrode rods 207 in the above process has been specifically described in a Chinese utility patent with the authorization publication number CN202955987U. For details, please refer to the technical content disclosed in its specification, and no further description will be given here);

[0053] Before the smelting raw materials are electrically heated for smelting, the two telescopic cylinders 312 are first synchronously started to drive the L-shaped movable plates 313 respectively fixed at the telescopic ends of the two telescopic cylinders 312 to move synchronously relative to each other, so that the arc-shaped limit plates 314 respectively fixed at one side of the two L-shaped movable plates 313 move synchronously relative to each other, until the two arc-shaped limit plates 314 are in contact with the inner wall of the semi-circular slide groove 606, and then the two telescopic cylinders 312 are closed to prevent the two hinged semi-circular rotating drums 601 from shaking up and down during the rotation process, so as to avoid affecting the subsequent electric heating process;

[0054] In the process of electrically heating and smelting the raw materials for smelting, the driving motor 308 is started to drive the main gear 309 fixed to its output shaft to rotate, so that the semi-ring gear 607 meshing with it rotates accordingly, thereby providing power for the rotation process of the two hinged semi-circular rotating drums 601, so that when the raw materials for smelting are electrically heated and smelted later, the top plate 201 of the furnace body can crush and shake the metallurgical raw materials inside it up and down to prevent the smelting raw materials from piling up into blocks and forming a hardened state, and at the same time, the contact degree between the two electrode rods 207 and the metallurgical raw materials is improved, and the hot melting efficiency of the metallurgical raw materials is also improved;

[0055] In the process of the furnace top plate 201 crushing and shaking the metallurgical raw materials up and down (in the process of the furnace top plate 201 moving back and forth, the elastic force of the elastic spring 307 fixedly connected between the base plate 304 and the furnace top plate 201 provides a certain buffer for the furnace top plate 201 moving up and down), the metallurgical raw materials in the middle position are repeatedly crushed by the up and down movement of a plurality of supporting top plates 211 fixed in a linear array on the side surface of the crushing rod 210, the extension vertical rod 212 fixed at the bottom of the supporting top plate 211, and the crushing cone 213 fixed at the bottom end of the extension vertical rod 212. , preventing the smelting raw materials in the middle position from piling up into blocks and becoming hardened. At the same time, the repeated up and down movement of the furnace top plate 201 can drive the several rectangular plates 407 fixed on the inner wall of the shaking cylinder 404 near the bottom, the shaking rods 408 fixed to the bottom of the several rectangular plates 407, and the several shaking fan blades 409 fixed in a linear array on the side of the shaking rods 408 to synchronously perform clockwise or counterclockwise shaking rotation to prevent the smelting raw materials at the edge position from piling up into blocks and becoming hardened. While improving the contact degree between the two electrode rods 207 and the metallurgical raw materials, the hot melting efficiency of the metallurgical raw materials is also improved.

[0056] For example 3, please refer to Figure 1-11, the third embodiment of the present invention is improved as follows on the basis of the first embodiment. Specifically, a conical cover 315 is fixed to the inner wall of the furnace body 301 below the two arc grooves 302, a positioning ring plate 316 is fixed to the outer wall of the furnace body 301 below the positioning ring 303, a plurality of first slide grooves 317 that are slidably matched with the extension rod 202 are provided on the side surface of the positioning ring plate 316, an annular sealing groove 318 is provided on the top of the positioning ring plate 316, and a plurality of threaded columns 319 are fixed on the top of the positioning ring plate 316; the sealing member 5 includes a fixing ring 501, an annular sealing rail 502 that is snap-fitted with the annular sealing groove 318 is fixed to the bottom of the fixing ring 501, a plurality of positioning holes 503 that are inserted and matched on the threaded columns 319 are provided through the top of the fixing ring 501, and a plurality of second slide grooves 505 that are slidably matched with the extension rod 202 are provided on the side surface of the fixing ring 501; the fixing ring A first sleeve 504 is fixed on the top of 501; a second sleeve 214 is fixed on the bottom of the furnace body top plate 201, and a third sleeve 215 is fixed on the bottom of the furnace body top plate 201, and a first annular groove 216 is provided at the bottom of the second sleeve 214, which is slidably matched with the first sleeve 504; a second annular groove 208 is provided at the bottom of the third sleeve 215, which is slidably matched with the top of the furnace body 301; a feed pipe 320 is provided on the outer peripheral side of the furnace body 301 near the top, and an air pressure pipe 321 is provided on the outer peripheral side of the furnace body 301 near the top, and a discharge pipe 322 is provided on the outer peripheral side of the furnace body 301 near the bottom, which is located below the rotating part 6, and an air pressure valve is provided on the side of the air pressure pipe 321, and electromagnetic valves are provided on the sides of the feed pipe 320 and the discharge pipe 322.

[0057] The specific application of this embodiment 3 is:

[0058] Before electrically heating the smelting raw materials inside, the ore-forming electric furnace opens the electromagnetic valve provided on the side of the feed pipe 320 for the smelting raw materials, and passes the smelting raw materials from the inlet end of the feed pipe 320, so that the smelting raw materials are temporarily stored inside the furnace body 301, and then electrically heats and roasts the smelting raw materials temporarily stored inside the furnace body 301. During the electrically heated roasting process, the air pressure inside the furnace body 301 is regulated by the air pressure valve provided on the side of the air pressure pipe 321. After the electrically heated roasting is completed, the electromagnetic valve provided on the side of the discharge pipe 322 is opened, so that the smelting raw materials that have been electrically heated and roasted are discharged from the inside of the discharge pipe 322, so as to carry out other subsequent smelting operations;

[0059] Before the smelting raw materials inside the furnace body 301 are electrically heated and roasted, the several positioning holes 503 opened through the top of the fixing ring 501 are respectively plugged into the several threaded columns 319 and the annular sealing rail 502 is snapped into the annular sealing groove 318, so that the two arc grooves 302 opened through the inner wall of the furnace body 301 are sealed during the electric heating process. At the same time, when the entire furnace body top plate 201 is moving up and down reciprocatingly, the sliding cooperation between the first sleeve 504 and the first annular groove 216 and the sliding cooperation between the second annular groove 208 and the top of the furnace body 301 further ensures the sealing of the furnace body 301 during the entire electric heating calcination process, thereby ensuring that the subsequent electric heating roasting can be completed smoothly.

[0060] Obviously, the above-described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0061] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0062] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the numbers used in this way can be interchanged where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein.

[0063] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

[0064] The above is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. A submerged arc furnace based on a variable circuit, comprising a furnace assembly (1), characterized in that: The top of the furnace body assembly (1) is slidably engaged with a top cover assembly (2), and the furnace body assembly (1) comprises a furnace body member (3), a shaking member (4) rotatably engaged inside the furnace body member (3), a sealing member (5) fixedly mounted on the furnace body member (3), and a rotating member (6) rotatably engaged with the furnace body member (3); The top cover assembly (2) comprises a furnace body top plate (201), a plurality of extension rods (202) are fixed at the bottom of the furnace body top plate (201), a contact ball (203) is fixed at the bottom of the plurality of extension rods (202), two symmetrical vertical plates (204) are fixed at the bottom of the furnace body top plate (201), and a lever (205) is fixed on one side of each of the two vertical plates (204); The furnace body member (3) comprises a furnace body (301), two symmetrical arc-shaped grooves (302) are formed through the outer peripheral side surface of the furnace body (301), a positioning ring (303) is fixed to the outer peripheral side surface of the furnace body (301) below the two arc-shaped grooves (302), a base plate (304) is fixed to the outer bottom of the furnace body (301), and two symmetrical arc-shaped vertical plates (305) are fixed to the top of the base plate (304); The shaking member (4) comprises two semicircular rings (401) which are hingedly matched, the inner walls of the two semicircular rings (401) are provided with semicircular grooves (402) which are slidably matched on the positioning ring (303), the inner walls of the two semicircular rings (401) are fixed with extension plates (403) which are slidably matched inside the arc grooves (302), the bottoms of the two extension plates (403) are fixed with a shaking cylinder (404) by bolts, the inner wall of the shaking cylinder (404) is provided with two symmetrical spiral grooves (405), and the spiral grooves (405) are slidably matched with the lever (205); The rotating member (6) comprises two semicircular rotating cylinders (601) that are hingedly matched. The bottoms of the two semicircular rotating cylinders (601) are each provided with a semi-annular groove (602) that is slidably matched on the two arc-shaped vertical plates (305). The tops of the two semicircular rotating cylinders (601) are each fixed with a semi-annular rotating cylinder (603). The tops of the semi-annular rotating cylinders (603) are each provided with a plurality of grooves (604) that are matched with the contact balls (203).

2. The variable circuit-based electric furnace according to claim 1 is characterized in that: Two groups of hydraulic brakes (206) are fixedly and symmetrically arranged on the top of the furnace body top plate (201); the hydraulic brakes (206) clamp an electrode rod (207) that passes through the top of the furnace body top plate (201); a controller is electrically connected between the two electrode rods (207) and an external power source; and the controller is electrically connected to the hydraulic brakes (206) and the electrode rods (207), respectively; A first ear plate (406) is fixed to one end of each of the two semicircular rings (401), and the two first ear plates (406) are fixedly connected by bolts; A second ear plate (605) is fixed to one end of each of the two semicircular rotating cylinders (601), and the two second ear plates (605) are fixedly connected by bolts.

3. The variable circuit-based electric furnace according to claim 2 is characterized in that: Two symmetrical guide vertical rods (306) are fixed to the top of the base plate (304), and two elastic springs (307) are respectively sleeved and matched on the side surfaces of the two guide vertical rods (306) are fixed to the top of the base plate (304), and the top ends of the two elastic springs (307) are fixedly connected to the bottom of the furnace body top plate (201); Two symmetrical guide holes (209) are provided at the bottom of the furnace body top plate (201), and the two guide holes (209) are respectively slidably matched with the two guide vertical rods (306).

4. The variable circuit-based electric furnace according to claim 3 is characterized in that: The outer walls of the two semi-ring rotating cylinders (603) are both provided with semi-ring sliding grooves (606), and the outer walls of the two semi-ring rotating cylinders (603) are both fixed with semi-ring teeth (607) below the semi-ring sliding grooves (606); A driving motor (308) is fixed on the top of the base plate (304), and a main gear (309) meshing with the two half ring gears (607) is fixed on the output shaft of the driving motor (308).

5. The variable circuit-based electric furnace according to claim 4, characterized in that: Two symmetrical T-shaped grooves (310) are formed on the top of the base plate (304); a supporting side plate (311) is fixed to the top of the base plate (304) above the two T-shaped grooves (310); a telescopic cylinder (312) is fixed to one side of the two supporting side plates (311); an L-shaped movable plate (313) is fixed to the telescopic end of the telescopic cylinder (312); an arc-shaped limit plate (314) slidably matched with the semi-annular sliding groove (606) is fixed to one side of the L-shaped movable plate (313) away from the outer wall of the arc-shaped vertical plate (305); and the L-shaped movable plate (313) is slidably matched with the T-shaped groove (310).

6. The variable circuit-based electric furnace according to claim 5, characterized in that: A crushing rod (210) is fixed at the bottom of the furnace body top plate (201) between the two electrode rods (207); a plurality of supporting top plates (211) are fixed in a linear array around the side surface of the crushing rod (210); an extending vertical rod (212) is fixed at the bottom of the supporting top plate (211); and a crushing cone (213) is fixed at the bottom end of the extending vertical rod (212); A plurality of rectangular plates (407) are fixed to the inner wall of the mixing cylinder (404) near the bottom, a mixing rod (408) is fixed to the bottom of each of the rectangular plates (407), and a plurality of mixing blades (409) are fixed to the side surface of the mixing rod (408) in a linear array.

7. The variable circuit-based electric furnace according to claim 6, characterized in that: A conical cover (315) is fixed to the inner wall of the furnace body (301) below the two arc-shaped grooves (302); a positioning ring plate (316) is fixed to the outer wall of the furnace body (301) below the positioning ring (303); a plurality of first sliding grooves (317) for slidingly cooperating with the extension rod (202) are provided on the peripheral side surface of the positioning ring plate (316); an annular sealing groove (318) is provided on the top of the positioning ring plate (316); and a plurality of threaded columns (319) are fixed to the top of the positioning ring plate (316); The sealing member (5) comprises a fixing ring (501), a fixing ring (501) having a fixing ring sealing rail (502) fixed at the bottom thereof and engaging with the fixing ring sealing groove (318), a fixing ring (501) having a plurality of positioning holes (503) inserted and engaged with the threaded column (319) formed through the top thereof, and a plurality of second sliding grooves (505) respectively engaging with the extension rod (202) formed on the peripheral side thereof.

8. The variable circuit-based electric furnace according to claim 7, characterized in that: A first sleeve (504) is fixed on the top of the fixing ring (501); A second sleeve (214) is fixed at the bottom of the furnace body top plate (201) inside the plurality of extension rods (202), a third sleeve (215) is fixed at the bottom of the furnace body top plate (201) inside the second sleeve (214), a first annular sliding groove (216) slidably matched with the first sleeve (504) is provided at the bottom of the second sleeve (214), and a second annular sliding groove (208) slidably matched with the top of the furnace body (301) is provided at the bottom of the third sleeve (215).

9. The variable circuit-based electric furnace according to claim 8, characterized in that: A feed pipe (320) is provided on the outer peripheral side of the furnace body (301) near the top, a gas pressure pipe (321) is provided on the outer peripheral side of the furnace body (301) near the top, a discharge pipe (322) is provided on the outer peripheral side of the furnace body (301) near the bottom and below the rotating member (6), a gas pressure valve is provided on the peripheral side of the gas pressure pipe (321), and electromagnetic valves are provided on the peripheral sides of the feed pipe (320) and the discharge pipe (322).

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