Continuous zinc alloy centralized melting system

Abstract

The invention is suitable for the technical field of melting furnaces, and provides a continuous zinc alloy centralized melting system which comprises a melting furnace and a heat preservation furnace connected with the output end of the melting furnace through a pipeline. A supporting plate is fixed to the inner bottom face of the heat preservation furnace. An annular cover coaxial with the heat preservation furnace is fixed to the surface of the supporting plate. An electromagnetic assembly coaxial with the heat preservation furnace is fixedly installed in the annular cover. The electromagnetic assembly comprises a holder, an electromagnetic stirring part, an electromagnetic heating part and a guide part. According to the system, through the use of the electromagnetic stirring part and the electromagnetic heating part, smelting and heat preservation are carried out while zinc melt is stirred; through linkage cooperation of all the components, the electromagnetic heating part and the electromagnetic stirring part synchronously swing in a reciprocating mode, the directions of magnetic fields formed by the stirring coil and the heating coil are synchronously changed, the flowing direction of the zinc melt is changed, and the stirring effect is further improved.

Description

Technical Field

[0001] The invention relates to the technical field of melting furnaces, and more particularly to a continuous zinc alloy concentrated melting system. Background Art

[0002] The zinc alloy melting furnace is a new type of high-efficiency and energy-saving zinc melting furnace developed according to the zinc smelting process. It is mainly used for melting and heat preservation of zinc ingots. It can well meet the zinc smelting process. The furnace is composed of a melting furnace, a crucible, a heating element, a furnace cover lifting mechanism, a heat preservation system, etc.

[0003] After searching, a continuous aluminum alloy centralized melting device that can be used on demand with the announcement number CN114294958B is found, which includes: a melting furnace and a heat preservation device connected to the output end of the melting furnace and capable of accommodating molten aluminum liquid. The first outer shell is arranged outside the second outer shell through a first outer shell ring, and the first heating wire is wound around the second outer shell. The first driving unit drives the second outer shell to rotate, and the first heating wire is energized, so that the second outer shell can be heated in all directions, and the rotation of the second outer shell drives the aluminum liquid therein to shake, thereby preventing a single area of ​​the aluminum liquid from being heated for too long and causing uneven heating, thereby improving the subsequent mold production quality.

[0004] Effective stirring of the melt can increase the metallurgical reaction rate, improve the heat transfer and mass transfer process, and is a key factor in increasing production efficiency, improving quality and reducing costs. However, the above-mentioned alloy centralized melting device controls the rotation of the second shell to drive the molten liquid therein to shake. Compared with the stirring method, its heat transfer effect is average, which reduces the quality of the smelted product. Summary of the invention

[0005] In view of the deficiencies in the prior art, the purpose of the present invention is to provide a continuous zinc alloy centralized melting system, which uses an electromagnetic stirring part and an electromagnetic heating part to stir the zinc melt while smelting and keeping it warm; through the linkage cooperation between the various components, the electromagnetic heating part and the electromagnetic stirring part are synchronously swung back and forth, so that the directions of the magnetic fields formed by the stirring coil and the heating coil are synchronously changed, thereby changing the flow direction of the zinc melt and further improving the stirring effect.

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

[0007] A continuous zinc alloy centralized melting system comprises a melting furnace and a holding furnace connected to the output end of the melting furnace through a pipeline; a support plate is fixed to the bottom surface of the holding furnace; an annular cover coaxial with the holding furnace is fixed on the surface of the support plate; an electromagnetic component coaxial with the holding furnace is fixedly installed inside the annular cover.

[0008] The electromagnetic assembly includes: a retaining frame, which is fixedly installed inside the annular cover; the retaining frame includes an upper fixing ring and a lower fixing ring arranged in parallel with each other; a plurality of upper arc sleeves with the same spherical center are evenly fixed on the bottom surface of the upper fixing ring; a plurality of lower arc sleeves with the same circle center as the corresponding upper arc sleeves are evenly fixed on the surface of the lower fixing ring.

[0009] The electromagnetic stirring part comprises a positioning ring; four groups of sliding rods are evenly fixed on the outer peripheral side of the positioning ring; a rotating ring is rotatably arranged on the peripheral side of the sliding rod; arc plates that slide with the corresponding upper arc sleeve and lower arc sleeve are symmetrically fixed on the peripheral side of the rotating ring; an arc spring is fixedly connected between the arc plate and the upper arc sleeve and the lower arc sleeve.

[0010] An electromagnetic heating part, wherein a plurality of the electromagnetic heating parts are evenly and fixedly installed inside the electromagnetic stirring part from top to bottom; and a guide part, wherein the guide part is rotatably arranged inside the annular cover to drive the electromagnetic stirring part and the electromagnetic heating part to swing synchronously.

[0011] The present invention is further configured as follows: a plurality of magnetic yokes are evenly fixed on the inner circumferential side of the positioning ring; three groups of stirring coils electrically connected in a star shape are evenly fixed between the magnetic yokes from top to bottom; and the magnetic field direction of the stirring coil is vertical.

[0012] The electromagnetic heating part comprises a carrying ring; a ring-shaped wavy heating coil is fixed inside the carrying ring; and the magnetic field direction of the ring-shaped wavy heating coil is horizontal.

[0013] The present invention is further configured as follows: mounting plates are symmetrically fixed between the inner walls of the annular cover; ear plates are symmetrically fixed to the outer peripheral sides of the upper fixing ring; the ear plates and the mounting plates are fixedly connected by fastening bolts; and a number of connecting rods are evenly fixedly connected between the upper fixing ring and the lower fixing ring.

[0014] The inner wall of the yoke is evenly provided with a plurality of slots from top to bottom; a first mounting hole is provided inside the slot; a plurality of plug-in plates that are plugged into and matched with the corresponding slots are evenly fixed on the outer peripheral side of the bearing ring; a second mounting hole is provided on the side of the plug-in plate; the plug-in plate is fixedly installed in the corresponding slot by fastening bolts.

[0015] The present invention is further configured as follows: a plurality of threaded tubes are evenly penetrated and fixed on the inner peripheral side of the annular cover; a screw is rotatably arranged inside the threaded tube; a ball head is fixed at one end of the screw; the guide part includes a swivel; and an annular groove is provided on the outer peripheral side of the swivel for slidingly cooperating with the ball head.

[0016] The present invention is further configured as follows: a gear ring is fixed at the bottom of the rotating ring; a connecting plate is fixed to the inner wall of the annular cover; a rotating shaft is rotatably arranged through the surface of the support plate; and a driving gear meshing with the gear ring is fixed at one end of the rotating shaft.

[0017] A first bevel gear is fixed to the other end of the rotating shaft; a connecting shaft is rotatably arranged through the inner wall of the annular cover; a second bevel gear meshing with the first bevel gear is fixed to one end of the connecting shaft; a servo motor is fixedly installed on the outer peripheral side of the annular cover; the output end of the servo motor is fixedly connected to the other end of the connecting shaft through a reducer.

[0018] The present invention is further configured as follows: a C-shaped upper guide ring and a C-shaped lower guide ring coaxial with the inner circumferential side of the swivel are fixed; extension plates are symmetrically fixed to the C-shaped upper guide ring, the C-shaped lower guide ring and the inner circumferential side of the swivel; a guide channel that slides with the slide rod is formed between the C-shaped upper guide ring and the C-shaped lower guide ring.

[0019] A first curved guide plate is fixed to the bottom surface of the C-shaped upper guide ring; a second curved guide plate is fixed to the surface of the C-shaped lower guide ring; the first curved guide plate is placed directly above the avoidance gap formed at both ends of the C-shaped lower guide ring; the second curved guide plate is placed directly below the avoidance gap formed at both ends of the C-shaped upper guide ring.

[0020] The present invention is further configured as follows: an annular guide plate is fixed to the bottom surface of the gear ring; a plurality of curved guide grooves are evenly opened on the bottom surface of the annular guide plate; a plurality of heat exchange tubes are evenly fixed to the surface of the support plate; a plurality of heat exchange protrusions are evenly fixed to the outer peripheral side surface of the heat exchange tube.

[0021] A first annular tube is fixed on the outer peripheral side of the annular cover; a cold water inlet pipe and a cold water outlet pipe are sequentially connected to the outer peripheral side of the first annular tube; a water pumping pipe is connected to the first annular tube and each of the heat exchange tubes; a second annular tube is fixed on the bottom of the annular cover; a water outlet pipe is connected to the outer peripheral side of the second annular tube; a drain pipe is connected to the second annular tube and the bottom of each of the heat exchange tubes; and one-way valves are provided on the drain pipe and the water pumping pipe.

[0022] The top end of the heat exchange tube is open, and a piston portion is slidably arranged inside the heat exchange tube; the piston portion includes a piston plate that slidably cooperates with the heat exchange tube; a piston rod is fixed to the top of the piston plate; a guide ball that matches the curved guide groove is fixed to the top of the piston rod; a return spring is fixedly connected between the piston plate and the inner bottom surface of the heat exchange tube.

[0023] The present invention is further configured as follows: a sealing cover is screwed on the inner circumferential side of the annular cover; two mounting seats are symmetrically fixed on the surface of the sealing cover; a conveying pump is fixedly installed on the two mounting seats; a discharge pipe and a feed pipe are connected through the top of the insulation furnace; the output end of the conveying pump is connected to the first conveying pipe, and the input end thereof and the discharge pipe are connected to the first extraction pipe.

[0024] Another delivery pump input end is connected to the feed pipe with a discharge pipe, and its output end is connected to a second delivery pipe; a second extraction pipe is connected between the output end of the melting furnace and the second delivery pipe.

[0025] The advantages of the present invention are:

[0026] 1. The present invention transports the molten zinc after being melted in the melting furnace into the insulation furnace for insulation storage. When workers need it, they only need to take the molten zinc from the insulation furnace without shutting down the melting furnace, thereby realizing on-demand use, realizing continuous melting of zinc alloy, and improving production efficiency.

[0027] 2. The present invention uses an electromagnetic stirring part and an electromagnetic heating part to stir the molten zinc while smelting and keeping it warm. When the traveling wave magnetic field formed by the stirring coil penetrates the bottom wall of the melting furnace and acts on the molten zinc, the molten zinc will produce a regular flow under the action of the Lorentz magnetic force, thereby achieving the purpose of stirring the molten zinc, preventing a single area of ​​the molten zinc from being heated for too long and causing uneven heating, thereby improving the production quality of the smelting product.

[0028] 3. The present invention realizes the linkage between the various components, so that the electromagnetic heating part and the electromagnetic stirring part synchronously perform periodic reciprocating swings, so that the directions of the magnetic fields formed by the stirring coil and the annular wavy heating coil change synchronously (the two always remain perpendicular to each other), thereby changing the flow direction of the zinc melt, further improving the stirring effect, and further improving the production quality of the smelting products. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 The figure is a schematic structural diagram of a continuous zinc alloy centralized melting system of the present invention.

[0030] Figure 2 For the present invention Figure 1 Schematic diagram of the structure from a frontal perspective.

[0031] Figure 3 For the present invention Figure 2 A magnified image of area A.

[0032] Figure 4 It is a structural schematic diagram of the melting furnace and holding furnace assembly of the present invention.

[0033] Figure 5It is a schematic diagram of the structure of the electromagnetic component of the present invention.

[0034] Figure 6 For the present invention Figure 5 A magnified view of area B.

[0035] Figure 7 For the present invention Figure 5 A schematic diagram of the structure from another angle.

[0036] Figure 8 For the present invention Figure 7 Magnified view of area C.

[0037] Fig. 9 It is a schematic structural diagram of the retaining frame of the present invention.

[0038] Fig.10 It is a schematic structural diagram of the electromagnetic stirring unit of the present invention.

[0039] Fig.11 It is a schematic structural diagram of the electromagnetic heating part of the present invention.

[0040] Fig.12 It is a structural schematic diagram of the guide part of the present invention.

[0041] Fig.13 It is a partial cross-sectional view of the swivel of the present invention.

[0042] Fig.14 It is a structural schematic diagram of the electromagnetic stirring part and the electromagnetic heating part assembly of the present invention.

[0043] Fig.15 It is a schematic structural diagram of the piston part of the present invention.

[0044] Fig.16 It is a schematic structural diagram of the sealing cover of the present invention.

[0045] Fig.17 It is a schematic structural diagram of the guide portion and retainer assembly of the present invention.

[0046] In the figure: 1, melting furnace; 2, holding furnace; 3, support plate; 4, annular cover; 5, electromagnetic assembly; 6, retaining frame; 7, upper fixing ring; 8, lower fixing ring; 9, upper arc sleeve; 10, lower arc sleeve; 11, electromagnetic stirring part; 12, positioning ring; 13, sliding rod; 14, rotating ring; 15, arc plate; 16, electromagnetic heating part; 17, guide part; 18, yoke; 19, stirring coil; 20, carrying ring; 21, annular wavy heating coil; 22, mounting plate; 23, ear plate; 24, connecting rod; 25, slot; 26, first mounting hole; 27, plug plate;

[0047] 28. second mounting hole; 29. ​​threaded tube; 30. screw rod; 31. ball head; 32. swivel;

[0048] 33. annular groove; 34. gear ring; 35. rotating shaft; 36. driving gear; 37. first bevel gear; 38. connecting shaft; 39. second bevel gear; 40. servo motor; 41. C-shaped upper guide ring; 42. C-shaped lower guide ring; 43. extension plate; 44. guide channel; 45. first curved guide plate; 46. second curved guide plate; 47. annular guide plate; 48. curved guide groove; 49. heat exchange tube; 50. first annular tube; 51. cold water inlet Pipe; 52, cold water outlet pipe; 53, water pumping pipe; 54, second annular pipe; 55, water outlet pipe; 56, drain pipe; 57, piston part; 58, piston plate; 59, piston rod; 60, guide ball; 61, return spring; 62, sealing cover; 63, mounting seat; 64, delivery pump; 65, discharge pipe; 66, feed pipe; 67, first delivery pipe; 68, first extraction pipe; 69, discharge pipe; 70, second delivery pipe; 71, second extraction pipe. DETAILED DESCRIPTION

[0049] 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.

[0050] 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.

[0051] 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.

[0052] For example, see Figure 1-17 , the present invention provides the following technical solutions:

[0053] A continuous zinc alloy centralized melting system, specifically, comprises a melting furnace 1 and a holding furnace 2 connected to the output end of the melting furnace 1 through a pipeline; a support plate 3 is fixed to the inner bottom surface of the holding furnace 2; an annular cover 4 coaxial with the holding furnace 2 is fixed to the surface of the support plate 3; an electromagnetic assembly 5 coaxial with the holding furnace 2 is fixedly installed inside the annular cover 4; the electromagnetic assembly 5 comprises: a retaining frame 6, an electromagnetic stirring part 11, a plurality of electromagnetic heating parts 16 and a guide part 17.

[0054] The retaining frame 6 is fixedly installed inside the annular cover 4; the retaining frame 6 includes an upper fixing ring 7 and a lower fixing ring 8 arranged in parallel with each other; a plurality of upper arc sleeves 9 with the same spherical center are evenly fixed on the bottom surface of the upper fixing ring 7; a plurality of lower arc sleeves 10 with the same circle center as the corresponding upper arc sleeves 9 are evenly fixed on the surface of the lower fixing ring 8; the electromagnetic stirring part 11 includes a positioning ring 12; four groups of sliding rods 13 are evenly fixed on the outer peripheral side of the positioning ring 12; a rotating ring 14 is rotatably arranged on the side of the sliding rod 13; an arc plate 15 that slides with the corresponding upper arc sleeve 9 and lower arc sleeve 10 is symmetrically fixed on the side of the rotating ring 14; an arc spring is fixedly connected between the arc plate 15 and the upper arc sleeve 9 and the lower arc sleeve 10; a plurality of electromagnetic heating parts 16 are evenly fixedly installed inside the electromagnetic stirring part 11 from top to bottom; a guide part 17 is rotatably arranged inside the annular cover 4, and is used to drive the electromagnetic stirring part 11 and the electromagnetic heating part 16 to swing synchronously.

[0055] Working principle of the first embodiment:

[0056] The present application utilizes the technology of electromagnetic stirring. The working principle of electromagnetic stirring is to transmit ultra-low frequency alternating current to the induction coil of the electromagnetic inductor through a variable frequency power supply. The iron core of the inductor generates a traveling wave magnetic field. When the traveling wave magnetic field penetrates the bottom wall of the smelting furnace and acts on the molten metal, the molten metal will produce a regular flow under the action of the Lorentz magnetic force, thereby achieving the purpose of stirring the molten metal, which can effectively solve the quality problems of metal products such as segregation, shrinkage holes, and formation of columnar crystals.

[0057] The specific technical solution is to transport the molten zinc in the melting furnace 1 into the insulation furnace 2 for insulation storage. When the workers need it, they only need to take the molten zinc from the insulation furnace 2 without closing the melting furnace 1, thereby realizing on-demand use and continuous melting of the zinc alloy, thereby improving production efficiency; by using the electromagnetic stirring part 11 and the electromagnetic heating part 16, the molten zinc is stirred while being melted and insulated; through the linkage between the various components, the electromagnetic heating part 16 and the electromagnetic stirring part 11 are synchronously swung back and forth, so that the directions of the magnetic fields formed by the stirring coil 19 and the annular wavy heating coil 21 change synchronously (the two always remain perpendicular to each other), thereby changing the flow direction of the molten zinc and further improving the stirring effect.

[0058] For example 2, please refer to Figure 1-17 The second embodiment makes the following improvements on the basis of the first embodiment. Specifically, a plurality of magnetic yokes 18 are evenly fixed on the inner side surface of the positioning ring 12; three groups of stirring coils 19 electrically connected in a star shape are evenly fixed between the magnetic yokes 18 from top to bottom; the magnetic field direction of the stirring coils 19 is vertical; the electromagnetic heating part 16 includes a carrying ring 20; a ring-shaped wavy heating coil 21 is fixed inside the carrying ring 20; the magnetic field direction of the ring-shaped wavy heating coil 21 is horizontal.

[0059] The mounting plates 22 are symmetrically fixed between the inner walls of the annular cover 4; the ear plates 23 are symmetrically fixed on the outer peripheral side of the upper fixing ring 7; the ear plates 23 and the mounting plates 22 are fixedly connected by fastening bolts; a number of connecting rods 24 are evenly fixedly connected between the upper fixing ring 7 and the lower fixing ring 8; a number of slots 25 are evenly opened on the inner wall of the yoke 18 from top to bottom; a first mounting hole 26 is opened inside the slot 25; a number of plug-in plates 27 that are plugged into and matched with the corresponding slots 25 are evenly fixed on the outer peripheral side of the load-bearing ring 20; a second mounting hole 28 is opened on the side of the plug-in plate 27; the plug-in plate 27 is fixedly installed in the corresponding slot 25 by fastening bolts.

[0060] A plurality of threaded tubes 29 are evenly fixed on the inner side of the annular cover 4; a screw 30 is rotatably arranged inside the threaded tube 29; a ball head 31 is fixed at one end of the screw 30; the guide part 17 includes a swivel 32; an annular groove 33 is provided on the outer side of the swivel 32 to slide with the ball head 31.

[0061] A gear ring 34 is fixed to the bottom of the rotating ring 32; a connecting plate is fixed to the inner wall of the annular cover 4; a rotating shaft 35 is rotatably arranged on the surface of the support plate; a driving gear 36 meshing with the gear ring 34 is fixed to one end of the rotating shaft 35; a first bevel gear 37 is fixed to the other end of the rotating shaft 35; a connecting shaft 38 is rotatably arranged on the inner wall of the annular cover 4; a second bevel gear 39 meshing with the first bevel gear 37 is fixed to one end of the connecting shaft 38; a servo motor 40 is fixedly installed on the outer peripheral side of the annular cover 4; the output end of the servo motor 40 is fixedly connected to the other end of the connecting shaft 38 through a reducer.

[0062] A C-shaped upper guide ring 41 and a C-shaped lower guide ring 42 which are coaxial with the swivel ring 32 are fixed to the inner side surface of the swivel ring 32; an extension plate 43 is symmetrically fixed to the C-shaped upper guide ring 41, the C-shaped lower guide ring 42 and the inner side surface of the swivel ring 32; a guide channel 44 which slides with the slide rod 13 is formed between the C-shaped upper guide ring 41 and the C-shaped lower guide ring 42; a first curved guide plate 45 is fixed to the bottom surface of the C-shaped upper guide ring 41; a second curved guide plate 46 is fixed to the surface of the C-shaped lower guide ring 42; the first curved guide plate 45 is placed directly above the avoidance gap formed at both ends of the C-shaped lower guide ring 42; the second curved guide plate 46 is placed directly below the avoidance gap formed at both ends of the C-shaped upper guide ring 41.

[0063] A sealing cover 62 is screwed on the inner side surface of the annular cover 4; two mounting seats 63 are symmetrically fixed on the surface of the sealing cover 62; a delivery pump 64 is fixedly installed on the two mounting seats 63; a discharge pipe 65 and a feed pipe 66 are arranged through the top of the insulation furnace 2; the output end of one delivery pump 64 is connected to a first delivery pipe 67, and its input end and the discharge pipe 65 are connected to a first extraction pipe 68; the input end of the other delivery pump 64 is connected to a discharge pipe 69 and the feed pipe 66, and the output end is connected to a second delivery pipe 70; a second extraction pipe 71 is connected between the output end of the melting furnace 1 and the second delivery pipe 70.

[0064] Working principle of the second embodiment:

[0065] The so-called star connection, also called "Y" connection, is to connect one end of the three windings of the motor stator together, and connect the other end of each to the three-phase alternating current. Because the shape is similar to the "Y" and "*" shapes, it is named. Since the three-phase power supply with a phase difference of 120° is connected together through the coil, when the three-phase load is balanced, the common connection point will cancel each other out to form a "0" point; the neutral line plays a vital role in the star connection; first, it acts as a bridge connecting various load devices. By connecting the neutral point of each device to a common lead, current distribution and guidance can be easily achieved; secondly, the neutral line also plays the role of balancing current. Due to the working conditions between different load devices.

[0066] The magnetic field direction of the annular wavy heating coil 21 is horizontal, one end of each annular wavy heating coil 21 is connected to the three-phase output of the heating power supply, and the other end of each annular wavy heating coil 21 is grounded; a number of grooves are evenly arranged on the yoke 18, and each group of stirring coils 19 is arranged in the corresponding grooves of the yoke 18. Adding a yoke 18 in the middle of the stirring coil 19 can increase the strength of the stirring magnetic field, and the magnetic field direction of the stirring coil 3 is vertical. The magnetic fields of the two are perpendicular to each other, and there is no induced electromotive force, which avoids the coupling of the magnetic field of the annular wavy heating coil 21 and the magnetic field of the stirring coil 19. The annular wavy heating coil 21 is decoupled by being arranged vertically with the stirring coil 19, so that melting and heat preservation can be carried out while stirring, and there will be no mutual influence due to electromagnetic field coupling. The specific working principle can be seen in the announcement number CN114294958B, a ready-to-use continuous aluminum alloy centralized melting device, which will not be elaborated here.

[0067] The ear plate 23 on the electromagnetic assembly 5 is fixed to the mounting plate 22 by tightening bolts, the sealing cover 62 is screwed to the top of the annular cover 4, and the output end of the melting furnace 1 is connected to the conveying pipe 67 through the second extraction pipe 71 to complete the assembly of the electromagnetic assembly 5.

[0068] By starting the corresponding delivery pumps 64, the molten zinc heated and melted inside the melting furnace 1 is delivered to the holding furnace 2 through the second extraction pipe 71 and the second delivery pipe 70 in sequence. When the workers need it, they only need to take the molten zinc from the holding furnace 2 (that is, control and start another set of delivery pumps 64 to extract the molten zinc in the holding furnace 2 through the first extraction pipe 68 and discharge it through the first delivery pipe 67). Valves are provided on the first delivery pipe 67, the first extraction pipe 68, the discharge pipe 69 and the second delivery pipe 70, and there is no need to close the melting furnace 1, thereby realizing on-demand use, realizing continuous melting of zinc alloy, and improving production efficiency.

[0069] By controlling and starting the servo motor 40, the connecting shaft 38 is driven to rotate slowly, thereby driving the second bevel gear 39 to rotate slowly, and then driving the first bevel gear 37 to rotate slowly, thereby driving the driving gear 36 to rotate through the rotating shaft 35, and then driving the ring gear 34 to rotate slowly. In the initial state, the four groups of slide bars 13 are all arranged inside the guide channel 44. At this time, each group of arc springs maintains a normal state, and the positioning ring 12 together with each group of stirring coils 19 and the annular wavy heating coil 21 are coaxially sleeved on the outside of the insulation furnace 2; when the ring gear 34 slowly rotates until a group of slide bars 13 (referred to as slide bars 13A) is separated from the guide channel 44, the corresponding second curved guide plate 46 moves in the direction close to the slide bar 13A, so that the slide bar 13A is lifted and the corresponding arc spring is compressed; another group of slide bars 13 (referred to as slide bars 13a) opposite to the slide bar 13A ) also just leaves the guide channel 44, and the corresponding first curved guide plate 45 slides in the direction close to the slide bar 13a, so that the slide bar 13a is pressed down and the corresponding arc spring is stretched. The remaining two sets of relative slide bars 13 (respectively recorded as slide bar 13B and slide bar 13b) are placed inside the guide channel 44, the slide bar 13A is lifted and the slide bar 13a is pressed down synchronously, so that the electromagnetic stirring part 11 as a whole rotates around the corresponding rotating ring 14 on the slide bar 13B and the slide bar 13b. During this process, the direction of the magnetic field of the stirring coil 19 changes, thereby changing the direction of the Lorentz magnetic force and the flow direction of the zinc melt, further improving the stirring effect, while ensuring that the magnetic field of the stirring coil 19 and the magnetic field of the annular wavy heating coil 21 are always perpendicular to each other, avoiding the coupling of the magnetic field of the annular wavy heating coil 21 with the magnetic field of the stirring coil 19.

[0070] To sum up, as the gear ring 34 rotates slowly, the electromagnetic heating part 16 and the electromagnetic stirring part 11 synchronously perform periodic reciprocating swings, so that the directions of the magnetic fields formed by the stirring coil 19 and the annular wavy heating coil 21 change synchronously (the two always remain perpendicular to each other), thereby changing the flow direction of the zinc melt, improving the stirring effect, and enhancing the production quality of the smelting products.

[0071] For example 3, please refer to Figure 1-17The third embodiment of the present invention is improved as follows on the basis of the second embodiment. Specifically, an annular guide plate 47 is fixed to the bottom surface of the gear ring 34; a plurality of curved guide grooves 48 are evenly provided on the bottom surface of the annular guide plate 47; a plurality of heat exchange tubes 49 are evenly fixed to the surface of the support plate 3; a plurality of heat exchange protrusions are evenly fixed to the outer peripheral side of the heat exchange tube 49; a first annular tube 50 is fixed to the outer peripheral side of the annular cover 4; a cold water inlet pipe 51 and a cold water outlet pipe 52 are sequentially connected to the outer peripheral side of the first annular tube 50; a water pumping pipe 53 is connected between the first annular tube 50 and each heat exchange tube 49; a second annular tube 50 is fixed to the bottom of the annular cover 4 4; a water outlet pipe 55 is connected to the outer side of the second annular tube 54; a drain pipe 56 is connected between the second annular tube 54 and the bottom of each heat exchange tube 49; a one-way valve is provided on the drain pipe 56 and the water pumping pipe 53; the top of the heat exchange tube 49 is opened, and a piston part 57 is slidably provided inside the heat exchange tube 49; the piston part 57 includes a piston plate 58 that slidably cooperates with the heat exchange tube 49; a piston rod 59 is fixed to the top of the piston plate 58; a guide ball 60 that matches the curved guide groove 48 is fixed to the top of the piston rod 59; a return spring 61 is fixedly connected between the piston plate 58 and the inner bottom surface of the heat exchange tube 49.

[0072] Working principle of the third embodiment:

[0073] The control guide portion 17 is controlled to rotate slowly, and the annular guide plate 47 at the bottom thereof is driven to rotate slowly. Under the elastic force of the return spring 61, the guide ball 60 is driven to always be close to the bottom of the annular guide plate 47. When the curved guide groove 48 rotates to above the guide ball 60, the guide ball 60 is driven to always be close to the curved guide groove 48 under the elastic force of the return spring 61. During the rotation of the guide portion 17, the return spring 61 is cooperated to realize the periodic reciprocating lifting and lowering of each group of piston portions 57 inside the corresponding heat exchange tube 49, and cold water is transported to the inside of the first annular tube 50 through the cold water inlet pipe 51. , discharged through the cold water outlet pipe 52, ensuring that there is a constant supply of cold water inside the first annular tube 50, and by arranging a one-way valve on the drain pipe 56, the hot water after heat exchange inside the heat exchange tube 49 can only be discharged into the second annular tube 54 through the drain pipe 56, and through the outlet pipe 55. By arranging a one-way valve on the pumping pipe 53, the cold water in the first annular tube 50 can only be pumped into the corresponding heat exchange tube 49 through the pumping pipe 53, and the cold water in the heat exchange tube 49 exchanges heat with the heat inside the annular cover 4, thereby realizing cooling of the electromagnetic component 5 and improving the service life of the electromagnetic component 5.

[0074] 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.

[0075] 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.

[0076] 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.

[0077] 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.

[0078] 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 continuous zinc alloy centralized melting system, comprising a melting furnace (1) and a holding furnace (2) connected to the output end of the melting furnace (1) through a pipeline; characterized in that: A support plate (3) is fixed to the inner bottom surface of the insulation furnace (2); an annular cover (4) coaxial with the insulation furnace (2) is fixed to the surface of the support plate (3); an electromagnetic component (5) coaxial with the insulation furnace (2) is fixedly installed inside the annular cover (4); The electromagnetic assembly (5) comprises: A retainer (6), the retainer (6) being fixedly mounted inside the annular cover (4); the retainer (6) comprising an upper fixing ring (7) and a lower fixing ring (8) arranged in parallel with each other; a plurality of upper arc-shaped sleeves (9) having the same spherical center are evenly fixed on the bottom surface of the upper fixing ring (7); a plurality of lower arc-shaped sleeves (10) having the same spherical center as the corresponding upper arc-shaped sleeves (9) are evenly fixed on the surface of the lower fixing ring (8); The electromagnetic stirring part (11) comprises a positioning ring (12); four groups of sliding rods (13) are evenly fixed on the outer peripheral side of the positioning ring (12); a rotating ring (14) is rotatably arranged on the peripheral side of the sliding rod (13); an arc plate (15) that is slidably matched with the corresponding upper arc sleeve (9) and lower arc sleeve (10) is symmetrically fixed on the peripheral side of the rotating ring (14); an arc spring is fixedly connected between the arc plate (15) and the upper arc sleeve (9) and the lower arc sleeve (10); An electromagnetic heating part (16), wherein a plurality of the electromagnetic heating parts (16) are evenly fixedly installed from top to bottom inside the electromagnetic stirring part (11); and A guide portion (17) is rotatably arranged inside the annular cover (4) and is used to drive the electromagnetic stirring portion (11) and the electromagnetic heating portion (16) to swing synchronously.

2. A continuous zinc alloy centralized melting system according to claim 1, characterized in that: A plurality of magnetic yokes (18) are evenly fixed on the inner circumferential side surface of the positioning ring (12); three groups of stirring coils (19) electrically connected in a star shape are evenly fixed between the magnetic yokes (18) from top to bottom; the magnetic field direction of the stirring coils (19) is a vertical direction; The electromagnetic heating part (16) comprises a carrying ring (20); an annular wavy heating coil (21) is fixed inside the carrying ring (20); and the magnetic field direction of the annular wavy heating coil (21) is horizontal.

3. A continuous zinc alloy centralized melting system according to claim 2, characterized in that: A mounting plate (22) is symmetrically fixed between the inner walls of the annular cover (4); an ear plate (23) is symmetrically fixed to the outer peripheral side of the upper fixing ring (7); the ear plate (23) and the mounting plate (22) are fixedly connected by fastening bolts; a plurality of connecting rods (24) are evenly fixedly connected between the upper fixing ring (7) and the lower fixing ring (8); The inner wall of the yoke (18) is evenly provided with a plurality of slots (25) from top to bottom; a first mounting hole (26) is provided inside the slot (25); a plurality of plug-in plates (27) that are plugged and matched with the corresponding slots (25) are evenly fixed on the outer peripheral side of the bearing ring (20); a second mounting hole (28) is provided on the side of the plug-in plate (27); and the plug-in plate (27) is fixedly installed in the corresponding slot (25) by means of a fastening bolt.

4. A continuous zinc alloy centralized melting system according to claim 3, characterized in that: A plurality of threaded tubes (29) are evenly penetrated and fixed on the inner circumferential side surface of the annular cover (4); a screw rod (30) is rotatably arranged inside the threaded tube (29); a ball head (31) is fixed at one end of the screw rod (30); The guide portion (17) comprises a rotating ring (32); an annular groove (33) for slidingly cooperating with the ball head (31) is formed on the outer peripheral side surface of the rotating ring (32).

5. A continuous zinc alloy centralized melting system according to claim 4, characterized in that: A gear ring (34) is fixed to the bottom of the rotating ring (32); a connecting plate is fixed to the inner wall of the annular cover (4); a rotating shaft (35) is rotatably provided through the surface of the support plate; a driving gear (36) meshing with the gear ring (34) is fixed to one end of the rotating shaft (35); A first bevel gear (37) is fixed to the other end of the rotating shaft (35); a connecting shaft (38) is rotatably provided through the inner wall of the annular cover (4); a second bevel gear (39) meshing with the first bevel gear (37) is fixed to one end of the connecting shaft (38); a servo motor (40) is fixedly mounted on the outer peripheral side of the annular cover (4); and an output end of the servo motor (40) is fixedly connected to the other end of the connecting shaft (38) via a reducer.

6. A continuous zinc alloy centralized melting system according to claim 5, characterized in that: The inner peripheral side surface of the rotating ring (32) is fixed with a C-shaped upper guide ring (41) and a C-shaped lower guide ring (42) coaxially therewith; the C-shaped upper guide ring (41), the C-shaped lower guide ring (42) and the inner peripheral side surface of the rotating ring (32) are symmetrically fixed with an extension plate (43); a guide channel (44) for sliding cooperation with the slide bar (13) is formed between the C-shaped upper guide ring (41) and the C-shaped lower guide ring (42); A first curved guide plate (45) is fixed on the bottom surface of the C-shaped upper guide ring (41); a second curved guide plate (46) is fixed on the surface of the C-shaped lower guide ring (42); the first curved guide plate (45) is placed directly above the avoidance gap formed at both ends of the C-shaped lower guide ring (42); and the second curved guide plate (46) is placed directly below the avoidance gap formed at both ends of the C-shaped upper guide ring (41).

7. A continuous zinc alloy centralized melting system according to claim 6, characterized in that: An annular guide plate (47) is fixed to the bottom surface of the gear ring (34); a plurality of curved guide grooves (48) are evenly formed on the bottom surface of the annular guide plate (47); a plurality of heat exchange tubes (49) are evenly fixed to the surface of the support plate (3); a plurality of heat exchange protrusions are evenly fixed to the outer peripheral side surface of the heat exchange tube (49); A first annular tube (50) is fixed on the outer peripheral side of the annular cover (4); a cold water inlet tube (51) and a cold water outlet tube (52) are sequentially connected to the outer peripheral side of the first annular tube (50); a water extraction tube (53) is connected between the first annular tube (50) and each of the heat exchange tubes (49); a second annular tube (54) is fixed on the bottom of the annular cover (4); a water outlet tube (55) is connected to the outer peripheral side of the second annular tube (54); a drainage tube (56) is connected between the second annular tube (54) and the bottom of each of the heat exchange tubes (49); and one-way valves are provided on the drainage tube (56) and the drainage tube (53); The top end of the heat exchange tube (49) is open, and a piston portion (57) is slidably arranged inside the heat exchange tube (49); the piston portion (57) includes a piston plate (58) slidably matched with the heat exchange tube (49); a piston rod (59) is fixed to the top of the piston plate (58); a guide ball (60) adapted to the curved guide groove (48) is fixed to the top of the piston rod (59); a return spring (61) is fixedly connected between the piston plate (58) and the inner bottom surface of the heat exchange tube (49).

8. A continuous zinc alloy centralized melting system according to claim 7, characterized in that: The inner circumferential side surface of the annular cover (4) is screwed with a sealing cover (62); two mounting seats (63) are symmetrically fixed on the surface of the sealing cover (62); a delivery pump (64) is fixedly installed on each of the two mounting seats (63); a discharge pipe (65) and a feed pipe (66) are provided through and connected to the top of the insulation furnace (2); the output end of the delivery pump (64) is connected to a first delivery pipe (67), and the input end thereof and the discharge pipe (65) are connected to a first extraction pipe (68); The input end of the other delivery pump (64) is connected to the feed pipe (66) with a discharge pipe (69), and the output end is connected to a second delivery pipe (70); a second extraction pipe (71) is connected between the output end of the melting furnace (1) and the second delivery pipe (70).

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