A smelting furnace crucible anti-oxidation protection device

Abstract

The application discloses a smelting furnace crucible anti-oxidation protection device and belongs to the technical field of smelting furnace crucible protection. The smelting furnace crucible anti-oxidation protection device is characterized by the following steps: inserting the flange crucible into the mounting through hole; after smelting is completed, retracting the telescopic end of the electric push rod, driving the push frame to slide reversely along the limiting slide rod, pushing the protection sealing cover plate to slide to the outside of the furnace body along the T-shaped guide slide bar through the pushing block, moving the push plate one away from the push plate two, gradually resetting the overlapping position of the push sliding groove one and the push sliding groove two, driving the push sliding frame to move reversely, synchronously separating the moving pressing strip from the flange of the crucible, reversely sliding the pushing block along the lifting sliding groove, pushing the linkage lifting strip to extend upward from the rectangular through slot, stably lifting the flange crucible, and directly taking out the lifted flange crucible from the mounting through hole after the protection sealing cover plate is completely opened, thereby completing dismounting.

Description

Technical Field

[0001] This invention relates to the field of furnace crucible protection technology, specifically to a furnace crucible anti-oxidation protection device. Background Technology

[0002] In the field of metal smelting and processing, the smelting furnace is the core equipment for realizing the melting of raw materials and the homogenization of components. As a key component that directly bears the high-temperature melt, the stability and service life of the crucible directly affect the smelting efficiency and product quality. In the operation of traditional smelting furnaces, crucibles are mostly installed in an open manner and manually pressed and fixed. Under high temperature environment, the crucible is in direct contact with air, which is very easy to cause oxidation, burning, cracking and deformation, which greatly shortens the service life of the crucible and increases production costs. At the same time, the open structure cannot isolate air, which will lead to oxidation of smelted materials and component segregation, reducing the quality of smelted products.

[0003] In existing smelting furnaces, the crucibles are placed directly on the furnace during heating and smelting. This can easily cause them to shake, shift, or even tip over during the smelting process. This results in the heating position deviating from the center of the electric heating coil, leading to uneven heating and affecting smelting efficiency and melt quality. In addition, most crucibles use open heating, which means they are in direct contact with high-temperature air. This makes them highly susceptible to oxidation, burning, cracking, and peeling. The smelted material is also easily oxidized, resulting in substandard composition. When the crucible is left to stand on the furnace for heating, air bubbles inside the melt cannot escape, leading to a loose structure, component segregation, and material sticking to the furnace walls. This makes slag removal difficult and exacerbates crucible erosion.

[0004] Based on this, the present invention designs an anti-oxidation protection device for a smelting furnace crucible to solve the above problems. Summary of the Invention

[0005] The purpose of this invention is to provide an anti-oxidation protection device for smelting furnace crucibles, addressing the problems mentioned in the background art. In existing smelting furnaces, when the crucibles are placed directly on the furnace during heating and smelting, they are prone to shaking, shifting, or even tipping over during the smelting process. This causes the heating position to deviate from the center of the electric heating coil, resulting in uneven heating and affecting smelting efficiency and melt quality. Furthermore, most crucibles use open heating, with the crucibles in direct contact with high-temperature air, making them highly susceptible to oxidation, burning, cracking, and peeling. The smelted material is easily oxidized, resulting in substandard composition. When the crucible is placed statically on the furnace for heating, air bubbles inside the melt cannot escape, leading to loose structure, component segregation, and material sticking to the walls, making slag removal difficult and exacerbating crucible erosion.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] An anti-oxidation protection device for a smelting furnace crucible includes a smelting furnace body. Pushing mechanisms are symmetrically arranged on both sides of the smelting furnace body. An installation groove is provided through the center of the bottom of the smelting furnace body. A striking mechanism is provided inside the installation groove. A fixed through groove is provided at the center of the bottom of the smelting furnace body, and the fixed through groove communicates with the installation groove. A rotating bevel ring is rotatably mounted inside the fixed through groove via ball bearings. Multiple positioning blocks are fixedly mounted at equal angles on the top of the inner wall of the rotating bevel ring. An installation through hole is provided through the center of the top of the smelting furnace body, and the installation through hole corresponds to the position of the fixed through groove. An electric heating coil is provided at the center of the interior of the smelting furnace body, and the electric heating coil corresponds to the positions of the fixed through groove and the installation through hole.

[0008] A flanged crucible is inserted into the mounting through hole, and the bottom end of the flanged crucible is inserted into the fixed through groove. Multiple positioning slots are provided at equal angles on the bottom edge of the flanged crucible, and the positioning slots are engaged with the positioning blocks. The outer circular surface of the flanged crucible between the fixed through groove and the mounting through hole is inserted into the electric heating coil. T-shaped guide rails are fixedly installed on both sides of the mounting through hole on the top of the smelting furnace box. Rectangular through grooves are provided on both sides of the mounting through hole and between the T-shaped guide rails on the top of the smelting furnace box. A linkage clamping and lifting mechanism is symmetrically provided on both sides of the top of the smelting furnace box, and the linkage clamping and lifting mechanism slides along the parallel direction of the T-shaped guide rails.

[0009] As a further embodiment of the present invention, the pushing mechanism includes an electric push rod, which is fixedly connected to the top of both sides of the smelting furnace body. The telescopic end of the electric push rod is fixedly connected to a pushing frame, and the pushing frame is arranged parallel to the T-shaped guide rail. Limiting slide rods are symmetrically fixedly installed on both sides of the smelting furnace body located at the bottom of the electric push rod, and the pushing frame is slidably connected between the two limiting slide rods. Pushing strips are rotatably installed at both ends of the pushing frame through protrusions, and a pushing protrusion is movably connected to the end of the pushing strip away from the pushing frame.

[0010] As a further embodiment of the present invention, the linkage clamping and lifting mechanism includes a protective sealing cover plate, and the pushing protrusion is fixedly connected to the bottom of both sides of the protective sealing cover plate. The top of the protective sealing cover plate away from the opening is provided with multiple ventilation holes. The bottom sides of the protective sealing cover plate are respectively provided with T-shaped sliding grooves, and the T-shaped sliding grooves are slidably connected to the surface of the T-shaped guide strip.

[0011] As a further embodiment of the present invention, push plates are fixedly installed on both sides of the top of the protective sealing cover near the opening of the T-shaped slide groove. Two push grooves are provided through the side of the push plate. Push plates are fixedly installed at the four corners of the top of the smelting furnace box. The push plates are close to the push plates. Two push grooves are provided through the side of the push plates. The push grooves overlap with the push grooves. The push grooves are inclined grooves with opposite inclination directions.

[0012] As a further embodiment of the present invention, a pusher slide is provided at the overlapping position of the pusher slide 1 and the pusher slide 2. A movable pressure strip is fixedly connected between the two opposing pusher slides through the pusher slide 1 and the pusher slide 2. Pushing blocks are fixedly connected to both ends of the bottom of the movable pressure strip. A linkage lifting strip is slidably installed inside the rectangular through groove. The linkage lifting strip is placed at the edge of the top of the flanged crucible, and lifting grooves are symmetrically provided at both ends of the linkage lifting strip. The lifting grooves are inclined at both ends of the linkage lifting strip. The protrusions at the bottom of both sides of the pusher block are slidably connected inside the lifting groove.

[0013] As a further embodiment of the present invention, the striking mechanism includes a drive motor, which is fixedly connected to one side inside the mounting groove. The output end of the drive motor is fixedly connected to a drive crankshaft, and both ends of the drive crankshaft are rotatably connected to the two sides of the inner wall of the mounting groove through bearings. A drive bevel gear is fixedly installed at the end of the drive crankshaft away from the drive motor, and the drive bevel gear meshes with a rotating bevel gear ring. A linkage bar is movably connected through the curved part of the surface of the drive crankshaft.

[0014] As a further embodiment of the present invention, the inner wall of the mounting groove is provided with a linkage crankshaft mounted on both sides of the drive crankshaft via bearings, and the two ends of the linkage bar are respectively connected to the central bend of the surface of the linkage crankshaft. The top and bottom of the inner wall of the mounting groove are respectively fixedly mounted on both sides of the drive crankshaft with fixing bars, and two fixing bars are a group. The two groups of fixing bars are symmetrically arranged on both sides of the linkage crankshaft, and multiple mounting slide rods are fixedly mounted between each group of fixing bars.

[0015] As a further embodiment of the present invention, a movable slide plate is slidably mounted on the surface of the mounting slide rod located between the two fixed bars, a return spring is sleeved on the surface of the mounting slide rod located at the bottom of the movable slide plate, a lifting slide is fixedly mounted between the two opposing movable slide plates, and the lifting slide is movably connected to the crank surface of the linkage crankshaft, and a striking column is symmetrically fixedly mounted on the top of the lifting slide.

[0016] Compared with the prior art, the beneficial effects of the present invention are: 1. This invention, through the arrangement of a flanged crucible, a first pusher plate, a second pusher plate, a movable pressure bar, and a linkage lifting bar, inserts the flanged crucible into the installation through hole, with its bottom falling into the fixed through groove and an electric heating coil embedded in its outer wall. After the flanged crucible rests on top of the two linkage lifting bars, the electric push rod is extended, and its extension end drives the pusher frame to slide along the limiting slide bar. The pusher bars at both ends of the pusher frame move synchronously, pulling the protective sealing cover plate to slide along the T-shaped guide slide bar. At the same time, the first pusher plate on the inner side of the cover plate slides synchronously against the second pusher plate. The pusher grooves of the first pusher plate and the second pusher plate have opposite inclination directions, and their overlapping positions continuously change with the sliding of the cover plate, causing the pusher frame to move along the overlapping inclined groove trajectory, thereby driving the movable pressure bar to move towards the flanged crucible. As the protective sealing cover plate gradually covers the top of the melting furnace box, the movable pressure bar gradually presses against the edge of the flanged crucible, and the pusher block... Sliding along the lifting chute, the linkage lifting bar moves down and retracts into the rectangular through slot, finally pressing the flanged crucible firmly against the top of the furnace body, achieving automatic pressing and full sealing of the flanged crucible, isolating air and preventing oxidation of the flanged crucible and materials. After melting, the electric push rod retracts, driving the pusher frame to slide in the opposite direction along the limit slide bar. The pusher bar pushes the protective sealing cover plate to slide outward along the T-shaped guide slide bar through the pusher protrusion. Pusher plate one moves away from pusher plate two along with the cover plate. The overlapping position of pusher chute one and pusher chute two is gradually reset, driving the pusher frame to move in the opposite direction. The moving pressure bar simultaneously disengages from the flanged crucible. The pusher block slides in the opposite direction along the lifting chute, pushing the linkage lifting bar to extend upward from the rectangular through slot, smoothly lifting the flanged crucible. After the protective sealing cover plate is fully opened, the lifted flanged crucible can be directly and smoothly pulled out from the installation through hole, completing the disassembly. 2. This invention, through the setting of a movable pressure bar, a drive crankshaft, a linkage crankshaft, a lifting slide, and a striking column, ensures that when the flanged crucible is pressed and fixed inside the mounting through hole by the movable pressure bar, the bottom end of the flanged crucible precisely fits and is inserted into the fixing through groove, making the bottom of the flanged crucible stably contact the striking column of the striking mechanism, preparing for slag removal and uniform melting. The drive motor is started, driving the drive crankshaft to rotate at a uniform speed. Under the synchronous connection of the linkage bar, the drive crankshaft drives the linkage crankshafts on both sides to rotate synchronously in the same direction. The crank portion of the linkage crankshaft continuously slides inside the lifting slide, pushing the lifting slide to reciprocate up and down. The moving slide plates at both ends of the lifting slide slide up and down along the mounting slide rods between the fixed bars. When moving downwards, the return spring is compressed to store energy, and when moving upwards, the return spring releases its elasticity to assist in lifting, ensuring smooth and uninterrupted movement. With the continuous rotation of the linkage crankshaft and the cooperation of the return spring, the lifting slide drives the symmetrically arranged striking columns at the top to move up and down at a high frequency and stably, continuously and evenly striking the bottom of the flanged crucible, dispersing the bubbles in the molten material inside the crucible, making the material heat more evenly, improving the smelting quality. At the same time, the striking vibration can effectively prevent the molten material from sticking to the inner wall of the crucible, facilitating subsequent slag removal and discharge. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the unfolded structure of the present invention;

[0019] Figure 2 This is a schematic diagram of the unfolded cross-sectional structure of the present invention;

[0020] Figure 3 This is a cross-sectional structural diagram of the melting furnace box and electric heating coil of the present invention;

[0021] Figure 4 This is a cross-sectional structural diagram of the smelting furnace body and the flanged crucible of the present invention.

[0022] Figure 5 This is a cross-sectional structural diagram of the smelting furnace box and the T-shaped guide slide of the present invention;

[0023] Figure 6 This is a schematic diagram of the structure of the electric push rod, push frame, and push bar of the present invention;

[0024] Figure 7 This is a schematic diagram of the structure of the protective sealing cover and the push plate of the present invention;

[0025] Figure 8 This is a schematic diagram of the movable pressure bar and the linkage lifting bar of the present invention;

[0026] Figure 9 This is a schematic diagram of the drive motor and linkage crankshaft of the present invention;

[0027] Figure 10 This is a schematic diagram of the structure of the crankshaft and linkage bar of the present invention;

[0028] Figure 11 This is a schematic diagram of the structure of the fixing bar and the lifting slide of the present invention.

[0029] The attached diagram lists the components represented by each number as follows:

[0030] 1. Smelting furnace body; 101. Mounting groove; 102. Fixing through groove; 103. Mounting through hole; 104. Rectangular through groove; 105. T-shaped guide slide bar; 106. Rotating bevel gear ring; 107. Positioning block; 2. Pushing mechanism; 201. Electric push rod; 202. Pushing frame; 203. Limiting slide bar; 204. Pushing bar; 205. Pushing protrusion; 3. Electric heating coil; 4. Flanged crucible; 401. Positioning slot; 5. Linkage clamping and lifting mechanism; 501. Protective sealing cover plate; 502. Vent hole; 503. T-shaped slide bar; 504. Push plate one; 505. Push slide one; 506. Push plate two; 507. Push slide two; 508. Moving pressure bar; 509. Push block; 510. Linked lifting bar; 511. Lifting slide; 512. Push carriage; 6. Striking mechanism; 601. Drive motor; 602. Drive crankshaft; 603. Linkage bar; 604. Linkage crankshaft; 605. Fixing bar; 606. Mounting slide rod; 607. Moving slide plate; 608. Return spring; 609. Lifting carriage; 610. Striking column; 611. Drive bevel gear. Detailed Implementation

[0031] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0032] Please see Figures 1-11 The present invention provides a technical solution:

[0033] An anti-oxidation protection device for a smelting furnace crucible includes a smelting furnace body 1. Pushing mechanisms 2 are symmetrically arranged on both sides of the smelting furnace body 1. An installation groove 101 is provided through the center of the bottom of the smelting furnace body 1. A striking mechanism 6 is provided inside the installation groove 101. A fixing through groove 102 is provided at the center of the bottom of the smelting furnace body 1. The fixing through groove 102 is a circular through-hole structure, with an overall flared opening shape (larger at the top and smaller at the bottom). The inner diameter of the fixing through groove 102 matches the outer diameter of the bottom of the flanged crucible 4, and the fixing through groove 102 is connected to the installation groove 101. A rotating bevel ring 106 is rotatably mounted inside the fixing through groove 102 via ball bearings. Multiple positioning blocks 107 are fixedly mounted at equal angles on the top of the inner wall of the rotating bevel ring 106. An installation through hole 103 is provided through the center of the top of the smelting furnace body 1, and the position of the installation through hole 103 corresponds to that of the fixing through groove 102. An electric heating coil 3 is provided at the location, and the electric heating coil 3 corresponds to the position of the fixed through groove 102 and the mounting through hole 103. A flanged crucible 4 is inserted into the mounting through hole 103, and the bottom end of the flanged crucible 4 is inserted into the fixed through groove 102. Multiple positioning slots 401 are provided at equal angles at the bottom edge of the flanged crucible 4, and the positioning slots 401 are correspondingly engaged with the positioning blocks 107. The outer circular surface of the flanged crucible 4 located between the fixed through groove 102 and the mounting through hole 103 is inserted into the electric heating coil 3. T-shaped guide rails 105 are fixedly installed on both sides of the mounting through hole 103 at the top of the smelting furnace box 1. Rectangular through grooves 104 are provided on both sides of the mounting through hole 103 and between the T-shaped guide rails 105 at the top of the smelting furnace box 1. Linkage clamping and lifting mechanisms 5 are symmetrically provided on both sides of the top of the smelting furnace box 1, and the linkage clamping and lifting mechanisms 5 slide along the parallel direction of the T-shaped guide rails 105.

[0034] During operation, the flanged crucible 4 is inserted into the mounting through hole 103 of the smelting furnace body 1, so that the bottom end of the flanged crucible 4 is engaged in the fixing through groove 102, and the outer wall of the flanged crucible 4 is embedded in the electric heating coil 3, completing the initial positioning of the flanged crucible 4. The control push mechanism 2 drives the linkage clamping and lifting mechanism 5 to move in the smelting furnace body 1. The T-shaped guide slide 105 provides sliding guidance for the linkage clamping and lifting mechanism 5, so that the linkage clamping and lifting mechanism 5 presses and fixes the flanged crucible 4 tightly on the top of the smelting furnace body 1, ensuring that the flanged crucible 4 is installed firmly and the heating position is accurate, until the linkage clamping and lifting mechanism 5 covers the smelting furnace body 1. The electric heating coil 3 is activated to heat and melt the flanged crucible 4. At the same time, the striking mechanism 6 is activated to strike the bottom of the flanged crucible 4 to eliminate air bubbles in the melt inside the flanged crucible 4. After the heating and melting are completed, the electric heating coil 3 is stopped, and the pushing mechanism 2 is controlled to drive the linkage clamping and lifting mechanism 5 to unfold and move away from the top of the flanged crucible 4. At the same time, the flanged crucible 4 is lifted up to facilitate the removal and handling of the flanged crucible 4.

[0035] As a further embodiment of the present invention, the pushing mechanism 2 includes an electric push rod 201, which is fixedly connected to the top of both sides of the smelting furnace box 1. The telescopic end of the electric push rod 201 is fixedly connected to a pushing frame 202, and the pushing frame 202 is arranged parallel to the T-shaped guide slide bar 105. Limiting slide bars 203 are symmetrically fixedly installed on both sides of the smelting furnace box 1 at the bottom of the electric push rod 201. The pushing frame 202 is slidably connected between the two limiting slide bars 203. Pushing bars 204 are rotatably installed at both ends of the pushing frame 202 through protrusions, and a pushing protrusion 205 is movably connected to the end of the pushing bar 204 away from the pushing frame 202.

[0036] During operation, the electric push rod 201 is activated, and its telescopic end drives the push frame 202 to slide smoothly along the limiting slide bar 203. The limiting slide bar 203 restricts the offset of the push frame 202, ensuring that the push frame 202 will not tilt or deflect when moving up and down. The push frame 202 drives the push bars 204 at both ends to move synchronously. The push bars 204 transmit pushing and pulling forces through the push protrusions 205, driving the linkage clamping and lifting mechanism 5 to open and close.

[0037] As a further embodiment of the present invention, the linkage clamping and lifting mechanism 5 includes a protective sealing cover plate 501, and the pushing protrusion 205 is fixedly connected to the bottom of both sides of the protective sealing cover plate 501. A plurality of vent holes 502 are provided through the top of the side of the protective sealing cover plate 501 away from the side opening, and the vent holes 502 are located at the top of the two protective sealing covers 501 on the side away from each other. T-shaped sliding grooves 503 are respectively provided through the two sides of the bottom of the protective sealing cover plate 501, and the T-shaped sliding grooves 503 are slidably connected to the surface of the T-shaped guide strip 105.

[0038] During operation, the pusher 205 drives the protective sealing cover 501 to move. The T-shaped groove 503 at the bottom of the cover slides on the surface of the T-shaped guide rail 105, allowing the protective sealing cover 501 to slide along the T-shaped guide rail 105. This prevents the protective sealing cover 501 from shaking or shifting during movement. The vent 502 can be connected to the protective gas. Together with the closing of the protective sealing cover 501, a sealed environment is achieved inside the furnace, isolating external air and effectively preventing the oxidization of the flanged crucible 4 and the internal materials at high temperatures. At the same time, it provides a closed protective space for the flanged crucible 4.

[0039] As a further embodiment of the present invention, push plates 504 are fixedly installed on both sides of the top of the protective sealing cover 501 near the opening of the T-shaped slide groove 503. Two push grooves 505 are provided through the sides of the push plates 504. Push plates 506 are fixedly installed at the four corners of the top of the smelting furnace body 1, and are closely attached to the push plates 504. Two push grooves 507 are provided through the sides of the push plates 506, and are connected to the push plates 504. The first slide 505 overlaps and overlaps. The first push slide 505 and the second push slide 507 are inclined slides with opposite inclination directions. A push slide 512 is provided at the overlapping position of the first push slide 505 and the second push slide 507. The push slide 512 consists of two slide columns and a connecting plate. The two slide columns of the push slide 512 are slidably connected through the overlapping position of the first push slide 505 and the second push slide 507. The connecting plate at one end of the two slide columns is close to the outside of the push plate 504.

[0040] During operation, the protective sealing cover 501 drives the push plate 1 504 to slide close to the push plate 2 506. The push slide 1 505 and push slide 2 507, which are set in the opposite direction, continuously change their overlapping positions as the protective sealing cover 501 moves, converting the horizontal movement of the protective sealing cover 501 into the directional movement of the push slide 512.

[0041] As a further embodiment of the present invention, a movable pressure strip 508 is fixedly connected between two opposing push slides 512 through push slide groove 1 505 and push slide groove 2 507. Push blocks 509 are fixedly connected to both ends of the bottom of the movable pressure strip 508. A linkage lifting strip 510 is slidably installed inside the rectangular through groove 104. The linkage lifting strip 510 is placed at the edge of the top of the flanged crucible 4, and lifting grooves 511 are symmetrically provided at both ends of the linkage lifting strip 510. The lifting grooves 511 are inclinedly arranged at both ends of the linkage lifting strip 510. The protrusions at the bottom of both sides of the push block 509 are slidably connected inside the lifting groove 511.

[0042] During operation, the pusher slide 512 drives the movable pressure bar 508 to move synchronously, and the pusher block 509 slides along the lifting groove 511 of the linkage lifting bar 510. When the protective sealing cover 501 is closed, the linkage lifting bar 510 is pressed by the pusher block 509 and retracted into the rectangular through groove 104. The movable pressure bar 508 rests on the edge of the flanged crucible 4 and presses down to achieve automatic clamping and fixing of the flanged crucible 4. When the protective sealing cover 501 is opened, the pusher slide 512 drives the movable pressure bar 508 to move upward away from the flanged crucible 4. At the same time, the pusher block 509 slides in the opposite direction along the lifting groove 511, pushing the linkage lifting bar 510 to extend upward and smoothly lift the flanged crucible 4, realizing automatic loosening and lifting of the flanged crucible 4, which is convenient for quick disassembly and assembly and avoids damage to the flanged crucible 4 caused by manual prying.

[0043] As a further embodiment of the present invention, the striking mechanism 6 includes a drive motor 601, which is fixedly connected to one side inside the mounting groove 101. The output end of the drive motor 601 is fixedly connected to a drive crankshaft 602, and both ends of the drive crankshaft 602 are rotatably connected to the two sides of the inner wall of the mounting groove 101 through bearings. A drive bevel gear 611 is fixedly installed at the end of the drive crankshaft 602 away from the drive motor 601, and the drive bevel gear 611 meshes with the rotating bevel gear ring 106. A linkage bar 603 is movably connected through the curved part of the surface of the drive crankshaft 602.

[0044] During operation, the drive motor 601 is started, and the output shaft drives the drive crankshaft 602 to rotate at a constant speed. The drive crankshaft 602 provides rotational power for the entire striking mechanism 6, ensuring continuous and stable power output. Under the linkage of the linkage bar 603, the linkage crankshafts 604 on both sides of the drive crankshaft 602 are controlled to rotate synchronously, avoiding uneven force on one side that could cause the mechanism to jam. At the same time, the drive crankshaft 602 drives the drive bevel gear 611 to rotate. Under the meshing action of the drive bevel gear 611 and the rotating bevel gear ring 106, the positioning slot 401 at the bottom of the flanged crucible 4 is engaged with the positioning block 107, causing the rotating bevel gear ring 106 to drive the flanged crucible 4 to rotate inside the electric heating coil 3, ensuring that the flanged crucible 4 is heated evenly during the heating process.

[0045] As a further embodiment of the present invention, the inner wall of the mounting groove 101 is rotatably mounted on both sides of the drive crankshaft 602 via bearings, and the two ends of the linkage bar 603 are respectively movably connected through the central bend of the surface of the linkage crankshaft 604. The top and bottom of the inner wall of the mounting groove 101 are symmetrically fixedly mounted on both sides of the drive crankshaft 602, and two fixing bars 605 form a group. The two groups of fixing bars 605 are symmetrically arranged on both sides of the linkage crankshaft 604. Multiple mounting slides 606 are fixedly mounted between each group of fixing bars 605. A movable slide plate 607 is slidably mounted through the surface of the mounting slide plate 606 between the two fixing bars 605. A return spring 608 is sleeved on the surface of the mounting slide plate 606 at the bottom of the movable slide plate 607. A lifting slide 609 is fixedly mounted between the two opposing movable slide plates 607, and the lifting slide 609 is movably connected through the crank surface of the linkage crankshaft 604. A striking post 610 is symmetrically fixedly mounted on the top of the lifting slide 609.

[0046] During operation, the drive crankshaft 602, connected by the linkage bar 603, drives the two linkage crankshafts 604 to rotate synchronously and in the same direction, ensuring consistent striking action and balanced force on both sides. The fixing bar 605 stably fixes the mounting slide rod 606 in the mounting groove 101, allowing the movable slide plate 607 to slide on the surface of the mounting slide rod 606, providing vertical guidance for the movable slide plate 607, ensuring accurate striking trajectory and smooth operation. The crank part of the linkage crankshaft 604 slides within the lifting slide 609, pushing the lifting slide 609. 09 drives the movable slide plate 607 to slide along the mounting slide rod 606. When moving downwards, it compresses the return spring 608 to store energy. When moving upwards, the return spring 608 releases its elasticity to assist in lifting, buffering impact and reducing vibration. The lifting slide 609 drives the striking column 610 to continuously and evenly strike the bottom of the flanged crucible 4 at a high frequency and in a stable reciprocating motion, breaking up the bubbles inside the melt, making the material heat more evenly, and preventing the material from sticking to the inner wall of the flanged crucible 4, which facilitates subsequent slag removal and discharge, improves the smelting quality and the service life of the flanged crucible 4.

[0047] Working principle of this invention:

[0048] First, insert the flanged crucible 4 into the mounting through hole 103 at the top of the melting furnace box 1 from top to bottom, so that the bottom end of the flanged crucible 4 is accurately inserted into the fixed through groove 102 at the bottom of the furnace body. At the same time, make the outer wall part of the flanged crucible 4 between the fixed through groove 102 and the mounting through hole 103 completely embedded in the electric heating coil 3, and complete the alignment of the flanged crucible 4 and the electric heating coil 3. Make the flanged crucible 4 fit tightly against the inner wall of the rotating conical tooth ring 106, and ensure that the positioning slot 401 at the bottom of the flanged crucible 4 and the positioning block 107 are engaged. At this time, the flanged part at the top of the flanged crucible 4 naturally rests on the two linkage lifting bars 510 in the rectangular through groove 104, achieving initial support and positioning, ensuring that the flanged crucible 4 is placed stably and the heating position is centered, which is in preparation for subsequent pressing and sealing.

[0049] When the electric push rod 201 extends, it drives the pusher frame 202 to slide smoothly and linearly along the limiting slide bar 203. The pusher bars 204 at both ends of the pusher frame 202 move synchronously, pulling the protective sealing cover 501 towards the center of the furnace body through the pusher protrusion 205. The T-shaped slide groove 503 at the bottom of the protective sealing cover 501 slides directionally along the T-shaped guide slide bar 105, ensuring that the protective sealing cover 501 moves without shaking or deviation, gradually covering the top of the smelting furnace box 1. When the protective sealing cover 501 moves, the inner pusher plate 1 504 slides tightly against the pusher plate 2 506 at the top of the smelting furnace box 1, and the reverse-inclined pusher slide groove 1 505 and the pusher slide groove 2 506 slide together. The overlapping position of the two 507s continues to change, transforming the horizontal movement into the directional downward movement of the pusher slide 512. The pusher slide 512 drives the moving pressure bar 508 to move closer to the flanged crucible 4. The bottom pusher block 509 of the moving pressure bar 508 slides along the lifting groove 511 of the linkage lifting bar 510, pushing the linkage lifting bar 510 downward into the rectangular through groove 104. Finally, the moving pressure bar 508 presses tightly against the flanged edge of the flanged crucible 4, firmly pressing and fixing the flanged crucible 4 in the mounting through hole 103 and the fixing through groove 102. The protective sealing cover 501 is completely closed, and protective gas is introduced through the vent hole 502 to form a sealed anti-oxidation environment.

[0050] After the flanged crucible 4 is fixed, the electric heating coil 3 is activated to heat and melt the flanged crucible 4 at high temperature. Protective gas is continuously introduced through the vent 502 to isolate it from external air and prevent high-temperature oxidation of the flanged crucible 4 and its internal materials. Because the bottom of the flanged crucible 4 is inserted into the fixing groove 102, the bottom surface of the flanged crucible 4 is in stable contact with the striking post 610. At this time, the drive motor 601 is activated to drive the drive crankshaft 602 to rotate at a constant speed. When the drive crankshaft 602 drives the drive bevel gear 611 to rotate, the rotating bevel gear ring 106 rotates within the fixing groove 102, causing the flanged crucible 4 to rotate at a constant speed inside the electric heating coil 3. With the synchronous connection of bar 603, the two linkage crankshafts 604 rotate in the same direction and at the same speed. The crank part of the linkage crankshaft 604 slides in the lifting slide 609, pushing the lifting slide 609 to make up-down reciprocating motion. The sliding plates 607 at both ends of the lifting slide 609 slide vertically along the mounting slide rod 606 between the fixed bars 605. The downward compression of the return spring 608 stores energy. The lifting slide 609 drives the top striking column 610 to strike the bottom of the flanged crucible 4 at a high frequency and stably, dispersing the bubbles in the melt inside the flanged crucible 4, making the material heat more evenly, and preventing the material from sticking to the inner wall of the flanged crucible 4, which facilitates subsequent slag removal and discharge.

[0051] After melting, the electric heating coil 3 and the striking mechanism 6 are turned off. After the flanged crucible 4 cools down, the telescopic end of the electric push rod 201 is retracted, and the pusher frame 202 slides in the opposite direction along the limiting slide bar 203. The pusher bar 204 pushes the protective sealing cover 501 along the T-shaped guide slide bar 105 to slide outward of the melting furnace box 1 through the pusher protrusion 205. The protective sealing cover 501 gradually opens, and the pusher plate 1 504 is pressed against and away from the pusher plate 2 506. The pusher chute 1 505 and the pusher chute 2 507 overlap. When the position is reset, the pusher slide 512 and the moving pressure bar 508 move upward, disengaging the flanged crucible 4. The pusher block 509 slides in the opposite direction along the lifting slide 511, pushing the linkage lifting bar 510 to extend upward from the rectangular through slot 104, smoothly lifting the flanged crucible 4 and disengaging it from the clamping state of the fixed through slot 102 and the mounting through hole 103. After the protective sealing cover 501 is fully opened, the lifted flanged crucible 4 can be smoothly pulled out from the mounting through hole 103, completing the entire disassembly process.

Claims

1. A furnace crucible anti-oxidation protection device, comprising a furnace housing (1), characterized in that: The smelting furnace box (1) is symmetrically provided with pushing mechanisms (2) on both sides. A mounting groove (101) is provided through the center of the bottom of the smelting furnace box (1). A knocking mechanism (6) is provided inside the mounting groove (101). A fixing through groove (102) is provided at the center of the bottom of the smelting furnace box (1), and the fixing through groove (102) is connected through the mounting groove (101). A rotating bevel gear ring (10) is rotatably installed inside the fixing through groove (102) by ball bearings. 6) Multiple positioning blocks (107) are fixedly installed at equal angles on the top of the inner wall of the rotating bevel ring (106). A through hole (103) is provided at the center of the top of the smelting furnace box (1), and the position of the through hole (103) corresponds to the position of the fixed through groove (102). An electric heating coil (3) is provided at the center of the interior of the smelting furnace box (1), and the position of the electric heating coil (3) corresponds to the position of the fixed through groove (102) and the through hole (103). A flanged crucible (4) is inserted into the mounting through hole (103), and the bottom end of the flanged crucible (4) is inserted into the fixing through groove (102). Multiple positioning slots (401) are provided at equal angles on the bottom edge of the flanged crucible (4), and the positioning slots (401) are correspondingly engaged with positioning blocks (107). The outer circumference of the flanged crucible (4) located between the fixing through groove (102) and the mounting through hole (103) is inserted into the electric heating coil (3). T-shaped guide slides (105) are fixedly installed on both sides of the mounting through hole (103) on the top of the smelting furnace box (1), and rectangular through slots (104) are provided on both sides of the mounting through hole (103) and between the T-shaped guide slides (105) on the top of the smelting furnace box (1). Linkage clamping and lifting mechanisms (5) are symmetrically provided on both sides of the top of the smelting furnace box (1), and the linkage clamping and lifting mechanisms (5) slide along the parallel direction of the T-shaped guide slides (105).

2. The oxidation protection device for a smelting furnace crucible according to claim 1, characterized in that: The pushing mechanism (2) includes an electric push rod (201), which is fixedly connected to the top of both sides of the furnace box (1). The extension end of the electric push rod (201) is fixedly connected to a pushing frame (202), and the pushing frame (202) is arranged parallel to the T-shaped guide slide (105). The furnace box (1) is symmetrically fixedly installed with limit slides (203) on both sides of the bottom of the electric push rod (201), and the pushing frame (202) is slidably connected between the two limit slides (203). The two ends of the pushing frame (202) are respectively rotatably installed with pushing strips (204) through protrusions, and the end of the pushing strip (204) away from the pushing frame (202) is movably connected with a pushing protrusion (205).

3. The oxidation protection device for a smelting furnace crucible according to claim 2, characterized in that: The linkage clamping and lifting mechanism (5) includes a protective sealing cover plate (501), and push protrusions (205) are fixedly connected to the bottom of both sides of the protective sealing cover plate (501). The top of the protective sealing cover plate (501) away from the opening is provided with multiple ventilation holes (502). T-shaped grooves (503) are provided on both sides of the bottom of the protective sealing cover plate (501), and the T-shaped grooves (503) are slidably connected to the surface of the T-shaped guide strip (105).

4. The oxidation protection device for a smelting furnace crucible according to claim 3, characterized in that: Pushing plates (504) are fixedly installed on both sides of the top of the protective sealing cover (501) near the opening of the T-shaped slide groove (503). Two pushing slide grooves (505) are provided through the side of the pushing plate (504). Pushing plates (506) are fixedly installed at the four corners of the top of the smelting furnace box (1). Pushing plates (506) are close to the pushing plate (504). Two pushing slide grooves (507) are provided through the side of the pushing plate (506). Pushing slide grooves (507) overlap with pushing slide grooves (505). Pushing slide grooves (505) and pushing slide grooves (507) are inclined grooves with opposite inclination directions.

5. The oxidation protection device for a smelting furnace crucible according to claim 4, characterized in that: A pusher slide (512) is provided at the overlapping position of the pusher slide 1 (505) and the pusher slide 2 (507). A movable pressure strip (508) is fixedly connected between the two opposing pusher slides (512) through the pusher slide 1 (505) and the pusher slide 2 (507). Pusher blocks (509) are fixedly connected to both ends of the bottom of the movable pressure strip (508). A linkage lifting strip (510) is slidably installed inside the rectangular through groove (104). The linkage lifting strip (510) is placed on the edge of the top of the flanged crucible (4). Lifting slides (511) are symmetrically provided at both ends of the linkage lifting strip (510). The lifting slides (511) are inclined at both ends of the linkage lifting strip (510). The protrusions at the bottom of both sides of the pusher block (509) are slidably connected inside the lifting slide (511).

6. The oxidation protection device for a smelting furnace crucible according to claim 1, characterized in that: The striking mechanism (6) includes a drive motor (601), which is fixedly connected to one side inside the mounting groove (101). The output end of the drive motor (601) is fixedly connected to a drive crankshaft (602), and both ends of the drive crankshaft (602) are rotatably connected to the two sides of the inner wall of the mounting groove (101) through bearings. A drive bevel gear (611) is fixedly installed at the end of the drive crankshaft (602) away from the drive motor (601), and the drive bevel gear (611) meshes with a rotating bevel gear ring (106). A linkage bar (603) is movably connected through the bend on the surface of the drive crankshaft (602).

7. The oxidation protection device for a smelting furnace crucible according to claim 6, characterized in that: The inner wall of the mounting groove (101) is located on both sides of the drive crankshaft (602) and the linkage crankshaft (604) is rotatably mounted on it through bearings. The two ends of the linkage bar (603) are respectively connected to the central bend of the surface of the linkage crankshaft (604). The top and bottom of the inner wall of the mounting groove (101) are symmetrically fixedly mounted on both sides of the drive crankshaft (602), and two fixing bars (605) form a group. The two groups of fixing bars (605) are symmetrically arranged on both sides of the linkage crankshaft (604). Multiple mounting slide rods (606) are fixedly installed between each group of fixing bars (605).

8. The oxidation protection device for a smelting furnace crucible according to claim 7, characterized in that: The mounting slide (606) is slidably mounted on the surface between the two fixed bars (605). A return spring (608) is sleeved on the surface of the mounting slide (606) at the bottom of the movable slide (607). A lifting slide (609) is fixedly mounted between the two opposing movable slides (607), and the lifting slide (609) is movably connected to the crank surface of the linkage crankshaft (604). A striking column (610) is symmetrically fixedly mounted on the top of the lifting slide (609).

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