Metal smelting and casting device with automatic pressurizing function

Abstract

The invention discloses a metal smelting and casting device with an automatic pressurizing function, and relates to the technical field of metal smelting and casting. Comprising a base table, a rotary table, a steel ladle, a tundish, a crystallizer, a secondary cooling device, a straightening machine, a detecting and recycling device, a conveying device, a flame cutter, a movable support and an electric sliding rail. The push piece is finally driven by the gear to move and extrude the piezoelectric element, the control system compares an electric signal generated by the piezoelectric element with a preset value and judges the slag adhering degree, when the slag adhering amount exceeds a specified value, the control system controls the flame cutter to automatically pressurize oxygen and reduce the slag adhering amount, and the purposes of slag adhering detection and automatic pressurization slag removal are achieved. And slag in the cooling tank is fished out through ascending of the filter screen plate, so that the purposes of filtering the cooling tank and collecting the slag are achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of metal smelting and casting, and specifically to a metal smelting and casting device with an automatic pressurization function. Background Art

[0002] A continuous casting machine is a key piece of equipment in the steel industry, used to continuously cast high-temperature molten steel into billets of specific shapes and sizes. There are various types of continuous casting machines. Compared with traditional ingot casting methods, continuous casting technology has significant advantages, such as improving metal yield and billet quality, and saving energy. With technological progress, continuous casting machines are also constantly innovating and upgrading, such as developing thin slab and strip continuous casting technologies, etc., to further improve production efficiency and reduce costs.

[0003] However, during the continuous casting production process, there are also many problems. When flame cutting a slab, if the oxygen spraying pressure is insufficient, slag hanging is likely to occur. A large amount of molten slag generated during cutting will spatter everywhere, not only causing damage to other surrounding devices, but also adhering to the bottom of the slab, seriously affecting the quality of the slab. As a result, the factory needs to spend a lot of time to trim the slab, and if the high-quality metal in the molten slag and slag hanging is not recycled, it will cause a large amount of resource waste. Summary of the Invention

[0004] The purpose of the present invention is to provide a metal smelting and casting device with an automatic pressurization function to solve the problems raised in the prior art.

[0005] To achieve the above purpose, the present invention provides the following technical solution: A metal smelting and casting device with an automatic pressurization function, including a base, a rotary table is installed on the base, a ladle is provided on the rotary table, a tundish is provided on the base, the tundish is located below the ladle, a mold is installed on the base, the mold is located below the tundish, a secondary cooling device is installed on the base, a straightening machine is provided on one side of the base, a transportation device and an electric slide rail are provided on one side of the straightening machine, a moving bracket is slidably installed on the electric slide rail, a flame cutter is slidably installed on the moving bracket, a first protective shell and a second protective shell are respectively installed on the moving bracket, and a detection and recovery device is installed between the first protective shell and the second protective shell; the detection and recovery device includes a waste slag collection component and a slag removal component, the slag removal component is respectively connected to the first protective shell and the second protective shell, the waste slag collection component is installed between the first protective shell and the second protective shell, a slag filtering component is installed on the waste slag collection component, and a trimming detector is installed on the waste slag collection component.

[0006] The casting device is externally connected to a control cabinet, and a control system is provided in the control cabinet, and the control system is used to control the entire casting device.

[0007] The control system controls the hoisting equipment to hoist the ladle filled with molten metal to the turntable. The turntable drives the ladle to rotate so that the ladle is aligned with the feed inlet of the tundish. The molten metal flows from the bottom end of the ladle into the tundish. The tundish diverts the molten metal into the mold. The mold cools and forms the molten metal into a metal slab. After entering the secondary cooling device, the slab enters the straightening machine. The straightening machine stretches the slab. The stretched slab is transported by the transport device to the flame cutter. The control system activates the electric slide rail. The electric slide rail drives the moving support to move longitudinally and ensures that the moving speed of the moving support is consistent with the transport speed of the slab, making the moving support and the slab relatively stationary. The detection and recovery devices on the first protective shell and the second protective shell move together with the moving support.

[0008] The waste residue collection component includes a cooling pool, a sliding rod, and a driving motor. Third connectors are installed on both sides of the cooling pool. The sliding rod is installed inside the second protective shell. The driving motor is installed on the first protective shell. The output shaft of the telescopic driving motor penetrates the first protective shell and is equipped with a second threaded rod. The threaded rod is rotatably connected to the second protective shell. A slag collection box is installed at one end of the cooling pool. Fourth connectors are installed at both ends of the cooling pool. A limiting rod is installed between the fourth connectors. Slag collection baffles are symmetrically installed at the top of the cooling pool. Cooling pipelines are provided inside the slag collection baffles. A slag filtering component is installed on the fourth connectors. A trimming detector is installed between the slag collection baffles. A circulating coolant is provided inside the cooling pool.

[0009] The cooling pipeline is externally connected to a coolant circulation supply device, enabling the cooling pipeline to continuously cool the slag collection baffle.

[0010] The control system activates the flame cutter and the driving motor. The flame cutter ejects high-temperature flames while sliding horizontally. The output shaft of the driving motor drives the second threaded rod to rotate. According to the operating principle of the lead screw, the second threaded rod drives the entire waste residue collection component to move horizontally at the same speed as the flame cutter through the third connector, keeping the flame cutter and the waste residue collection component relatively stationary and ensuring that the nozzle of the flame cutter is always located at the center of the waste residue collection component. The high-temperature flame of the flame cutter melts and cuts the slab. Under the impact of the high-temperature flame, the melted slab forms splashing molten slag. Part of the molten slag is blocked by the slag collection baffle, and the other part of the molten slag directly falls downward into the cooling pool and is cooled and solidified by the circulating coolant in the cooling pool. Some of the molten slag that contacts the slag collection baffle bounces into the cooling pool after colliding with the slag collection baffle, and some adheres to the slag collection baffle. The coolant in the cooling pipeline circulates to cool the slag collection baffle, causing the molten slag on it to cool and solidify, thus completing the blocking and collection of the molten slag and preventing the molten slag from splashing and damaging other devices.

[0011] The trimming detector includes a detection block installed between slag collecting baffles. A transmission rod is slidably installed inside the detection block. A front shovel block is installed at one end of the transmission rod. A conduction spring is installed between the front shovel block and the detection block. A first transmission gear is provided at the bottom end of the transmission rod. A detection component is installed at the bottom end of the detection block. The transmission rod is meshed and driven with the detection component through the first transmission gear.

[0012] The detection component includes a detection housing and a second connecting piece. The detection housing is installed at the bottom end of the detection block. The second connecting piece is installed at the bottom end of the detection housing. A gear is rotatably installed on the second connecting piece. A first threaded rod is installed on one side of the gear. A detection column is slidably installed inside the detection housing. A push piece is slidably installed inside the detection housing. A piezoelectric element is installed between the push pieces. The detection column is threadedly connected to the first threaded rod. A sliding strip is installed on the detection column. A sliding groove is provided inside the detection housing. The sliding strip is slidably installed in the sliding groove. A detection spring is installed between the push piece and the detection column. The transmission rod is meshed and driven with the gear through the first transmission gear.

[0013] The trimming detector moves together with the waste slag collection component. When the front shovel block moves to the cutting position, the front shovel block shovels off the slag attached to the bottom of the slab due to sputtering and the slag hanging at the cutting position. When the oxygen pressure sprayed by the flame cutter is sufficient, most of the hanging slag can be cleaned under the impact of high-pressure oxygen. When the oxygen pressure is insufficient, a large amount of hanging slag will occur at the cutting position, resulting in a decline in cutting quality. When the front shovel block shovels off the unfrozen hanging slag, the hanging slag will generate resistance to the front shovel block. After the front shovel block is subjected to the resistance, it overcomes the elastic force of the conduction spring and drives the transmission rod to slide inside the detection block. The transmission rod drives the gear to rotate through the first transmission gear. The gear drives the first threaded rod to rotate. The first threaded rod drives the detection column to rotate. Since the sliding strip on the detection column is engaged with the sliding groove inside the detection housing, the detection column cannot rotate, and the detection column converts the rotation into sliding inside the detection housing. The two detection columns slide and approach each other. At the same time, a thrust is applied to the push piece through the detection spring, and the push piece squeezes the piezoelectric element towards the middle. The piezoelectric element generates electric charges after being pressed. Since the hanging slag is continuous, the generated electric charges are also continuous. While the sputtered slag is scattered and discontinuous, this will cause intermittent fluctuations in the amount of electric charges. The electric charges are transmitted to the control system through wires. When the oxygen pressure is smaller, the hanging slag is more serious, and the resistance to the front shovel block is greater, thus making the electrical signal stronger. The control system compares the electrical signal with the preset value to judge the degree of hanging slag. When the amount of hanging slag exceeds the specified value, the control system controls the flame cutter to automatically pressurize oxygen to reduce the amount of hanging slag; the cut slab is transported away by the transport device; when the front shovel block is attached with a large amount of hanging slag and molten slag after long-term scraping, it is cleaned by an external cleaning device.

[0014] The filter residue assembly includes a filter screen plate, a third threaded rod, and a fourth threaded rod. A spring telescopic rod is installed on the filter screen plate. The top of the spring telescopic rod is installed with a fifth connecting piece. A connecting rod is installed between the fifth connecting pieces. Connecting blocks are symmetrically installed on the connecting rod. The bottom end of the connecting block is rotatably installed with a rotating rod. The third threaded rod and the fourth threaded rod are both rotatably installed on the fourth connecting piece. The third threaded rod is in meshing transmission with the second protective shell, and the fourth threaded rod is in meshing transmission with the first protective shell. Symmetrical threads are provided on both the third threaded rod and the fourth threaded rod. Sliding blocks are threadedly installed on both the third threaded rod and the fourth threaded rod. The sliding blocks are slidably connected to the rotating rod.

[0015] In the initial state, the filter screen plate is located at the top of the cooling pool and does not contact the coolant. In the detection state, the filter screen plate is located at the bottom of the cooling pool and is completely immersed in the cooling pool.

[0016] After cutting is completed, the control system shuts down the hot wire cutter and repeats the previous steps in reverse to reset the detection and recovery device and the moving bracket. The filter residue assembly slides back in reverse following the waste collection assembly. When the third threaded rod and the fourth threaded rod respectively contact the second transmission gear and the third transmission gear, the second transmission gear and the third transmission gear respectively drive the third threaded rod and the fourth threaded rod to rotate. Since symmetrical threads are provided on the third threaded rod, the third threaded rod rotates and drives the two sliding blocks to slide and approach along the limiting rod. The sliding blocks approach and squeeze the two connecting blocks through the rotating rod. Since the connecting blocks are fixed on the connecting rod and cannot move, under the squeezing action, the connecting blocks drive the connecting rod to rise. At the same time, the rotating rod rotates with the sliding block and the connecting block respectively. The connecting rod drives one end of the filter screen plate to rise synchronously through the fifth connecting piece and the spring telescopic rod. Similarly, the fourth threaded rod rotates and finally drives the other end of the filter screen plate to rise synchronously. When the filter residue assembly completely resets following the waste collection assembly, that is, when the detection and recovery device is located on one side of the slab, the filter screen plate just completely rises. The filter screen plate is located at the top of the cooling pool and does not contact the coolant. The slag in the cooling pool is brought out of the water surface by the filter screen plate, thus achieving the purpose of filtering the cooling pool and collecting the slag.

[0017] The sliding block is provided with a chute, and the limiting rod is fitted in the chute. The sliding block is slidably connected to the limiting rod through the chute. The third threaded rod is provided with a first tooth groove, and the second protective shell is provided with a second transmission gear. The first tooth groove is in meshing transmission with the second transmission gear. The fourth threaded rod is provided with a second tooth groove, and the first protective shell is provided with a third transmission gear. The third transmission gear is in meshing transmission with the first tooth groove.

[0018] The slag removal assembly includes a first connecting piece, which is respectively installed on the first protective shell and the second protective shell. A first electric telescopic rod is installed on the first connecting piece. The output shaft of the first electric telescopic rod is installed with a second electric telescopic rod. The output shaft of the second electric telescopic rod is installed with a scraper. Side scraping strips are installed on the scraper. A vibrating partition is installed on the filter screen plate.

[0019] After the filter screen plate is lifted, the control system activates the first electric telescopic rod. The first electric telescopic rod drives the scraper and the side scraping strip to extend forward through the second electric telescopic rod. When extending forward, the side scraping strip fits with the upper half of the slag collection baffle. While extending forward, the side scraping strip scrapes the molten slag on the slag collection baffle. After the molten slag on the upper half of the slag collection baffle is completely scraped off, the control system activates the second electric telescopic rod. The output shaft of the second electric telescopic rod drives the scraper to move downward until the shoveling strip at the bottom of the scraper contacts the filter screen plate. At this time, the vibration partition is engaged with the scraping groove, and the vibration column abuts against the corrugated groove on the vibration partition. The control system controls the first electric telescopic rod to retract. The first electric telescopic rod drives the scraper and the side scraping strip to retract. The side scraping strip scrapes the molten slag on the lower half of the slag collection wall. The scraped molten slag falls on the filter screen plate. The side scraper and the shoveling strip thereon cooperate to push the molten slag on the filter screen plate towards the slag collection box. When the scraper moves, the vibration column thereon squeezes the protrusions on the corrugated groove of the vibration partition. After being squeezed, the vibration partition drives the spring telescopic rod to stretch downward through the filter screen plate. When the vibration column slides to the groove on the corrugated groove, the spring telescopic rod loses pressure and thus drives the filter screen plate and the vibration partition to recover upward. This process is repeated, causing the filter screen plate to generate bumpy vibrations. The vibrations enable the molten slag on the filter to break away more quickly, preventing the molten slag from getting stuck in the mesh holes of the filter screen plate, thereby achieving the collection of molten slag and the cleaning of the filter screen plate. After that, the above steps are cyclically repeated to achieve the casting of the metal slab.

[0020] The vibration partition is provided with a corrugated groove. The bottom end of the scraper is installed with a shoveling strip. The scraper is provided with a scraping groove, and the scraping groove is provided with a vibration column.

[0021] Compared with the prior art, the beneficial effects of the present invention are:

[0022] 1. The slag collection baffle in the waste residue collection component is used to block the molten slag generated by flame cutting. In cooperation with the cooling pool, the splashing molten slag is cooled and collected, preventing the molten slag from splashing and causing damage to other devices. The electric slide rail is used to drive the waste residue collection component to move synchronously with the flame cutter, so that the nozzle of the flame cutter is always at the center position of the waste residue collection component, ensuring that the splashing molten slag is always within the effective blocking range of the slag collection baffle and preventing missed blocking.

[0023] 2. The front shovel block on the trimming detector is used to remove and trim the hanging slag and molten slag at the bottom of the slab. At the same time, the resistance of the hanging slag to the front shovel block is converted into the displacement of the front shovel block, and then the displacement of the front shovel block is converted into the rotation of the gear. Finally, the gear drives the push piece to move and squeeze the piezoelectric element. The control system compares the electrical signal generated by the piezoelectric element with the preset value to judge the degree of hanging slag. When the amount of hanging slag exceeds the specified value, the control system controls the flame cutter to automatically pressurize oxygen to reduce the amount of hanging slag, achieving the purpose of hanging slag detection and automatic pressurized slag removal.

[0024] 3. During the reset process after cutting, the second transmission teeth on the first protective shell and the second protective shell drive the third threaded rod and the fourth threaded rod to rotate respectively, so as to drive the filter plate to rise without a drive, and the slag in the cooling pool is fished out by the rising of the filter plate, thus achieving the purpose of filtering the cooling pool and collecting the slag.

[0025] 4. The slag on the slag collection baffle is scraped off onto the filter plate by the slag removal component, and then the slag on the filter plate is pushed into the slag collection box to achieve the cleaning and collection of the filtered slag; the vibration columns on the scraper and the corrugated grooves on the vibration partition cooperate with each other to make the filter plate vibrate bumpily, and the vibration enables the slag on the filter screen to break away more quickly, preventing the slag from getting stuck in the mesh holes of the filter plate, thus achieving the cleaning of the filter plate. Description of the Drawings

[0026] Figure 1 It is the overall three-dimensional view of the casting device of the present invention;

[0027] Figure 2 It is the three-dimensional Figure 1 ;

[0028] Figure 3 It is the three-dimensional Figure 2 ;

[0029] Figure 4 It is the three-dimensional Figure 3 ;

[0030] Figure 5 It is the three-dimensional view of the slag removal component of the present invention;

[0031] Figure 6 It is the three-dimensional view of the filtered slag component of the present invention;

[0032] Figure 7 It is of the present invention Figure 5 Partial enlarged view of area A;

[0033] Figure 8 It is the three-dimensional view of the trimming detector of the present invention;

[0034] Figure 9 It is the three-dimensional view of the detection component of the present invention;

[0035] Figure 10 It is of the present invention Figure 8 Partial enlarged view of area B;

[0036] Figure 11 It is the three-dimensional view of the third threaded rod and the fourth threaded rod of the present invention;

[0037] Figure 12 It is the three-dimensional view of the waste residue collection component of the present invention.

[0038] In the figure: 1, base; 2, rotary table; 3, ladle; 4, tundish; 5, mold; 6, secondary cooling device; 7, straightening machine; 8, detection and recovery device; 9, transport device; 10, flame cutter; 11, mobile support; 12, electric slide rail; 81, slag filtering component; 82, trimming detector; 83, waste slag collection component; 84, slag removal component; 841, first connecting piece; 842, first electric telescopic rod; 843, second electric telescopic rod; 844, scraper; 845, side scraping bar; 8441, shoveling bar; 8442, scraping groove; 8443, vibrating column; 821, front shoveling block; 822, transmission rod; 823, conduction spring; 824, detection component; 825, detection block; 8221, first transmission tooth; 8241, detection housing; 8242, first threaded rod; 8243, gear; 8244, detection column; 8245, detection spring; 8246, pushing piece; 8247, piezoelectric element; 8248, second connecting piece; 8249, sliding bar; 1121, second transmission tooth; 1111, third transmission tooth; 831, slag collecting baffle; 832, slag collecting box; 833, drive motor; 834, third connecting piece; 835, second threaded rod; 836, cooling pond; 837, fourth connecting piece; 838, sliding rod; 8311, cooling pipeline; 839, limiting rod; 811, third threaded rod; 812, fourth threaded rod; 813, filter screen plate; 814, vibrating partition plate; 815, fifth connecting piece; 816, connecting block; 817, connecting rod; 818, rotating rod; 819, sliding block; 810, spring telescopic rod; 8191, chute; 8111, first tooth groove; 8121, second tooth groove; 8141, corrugated groove; 111, first protective shell; 112, second protective shell. Specific embodiments

[0039] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the 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 those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0040] As Figures 1-12As shown in the figure, the present invention provides a technical solution for a metal smelting and casting device with an automatic pressurization function: including a base 1, a rotary table 2 is installed on the base 1, a ladle 3 is provided on the rotary table 2, an intermediate ladle 4 is provided on the base 1, the intermediate ladle 4 is located below the ladle 3, a mold 5 is installed on the base 1, the mold 5 is located below the intermediate ladle 4, a secondary cooling device 6 is installed on the base 1, a straightening machine 7 is provided on one side of the base 1, a transport device 9 and an electric slide rail 12 are provided on one side of the straightening machine 7, a moving bracket 11 is slidably installed on the electric slide rail 12, a flame cutter 10 is slidably installed on the moving bracket 11, a first protective shell 111 and a second protective shell 112 are respectively installed on the moving bracket 11, and a detection and recovery device 8 is installed between the first protective shell 111 and the second protective shell 112; the detection and recovery device 8 includes a waste residue collection component 83 and a slag removal component 84, the slag removal component 84 is respectively connected to the first protective shell 111 and the second protective shell 112, the waste residue collection component 83 is installed between the first protective shell 111 and the second protective shell 112, a slag filtering component 81 is installed on the waste residue collection component 83, and a trimming detector 82 is installed on the waste residue collection component 83. The casting device is externally connected to a control cabinet, and a control system is provided in the control cabinet, and the control system is used to control the entire casting device.

[0041] The waste residue collection component 83 includes a cooling pool 836, a sliding rod 838 and a driving motor 833. Third connectors 834 are installed on both sides of the cooling pool 836. The sliding rod 838 is installed in the second protective shell 112. The driving motor 833 is installed on the first protective shell 111. The output shaft of the telescopic driving motor 833 penetrates through the first protective shell 111 and is installed with a second threaded rod 835. The threaded rod is rotatably connected to the second protective shell 112. A slag collection box 832 is installed at one end of the cooling pool 836. Fourth connectors 837 are installed at both ends of the cooling pool 836. A limiting rod 839 is installed between the fourth connectors 837. Slag collection baffles 831 are symmetrically installed at the top of the cooling pool 836. A cooling pipeline 8311 is provided in the slag collection baffle 831. The slag filtering component 81 is installed on the fourth connector 837. The trimming detector 82 is installed between the slag collection baffles 831. A circulating coolant is provided in the cooling pool 836. The cooling pipeline 8311 is externally connected to a coolant circulation supply device, so that the cooling pipeline 8311 can continuously cool the slag collection baffle 831.

[0042] The trimming detector 82 includes a detection block 825. The detection block 825 is installed between the slag collection baffles 831. A transmission rod 822 is slidably installed in the detection block 825. A front shovel block 821 is installed at one end of the transmission rod 822. A conduction spring 823 is installed between the front shovel block 821 and the detection block 825. A first transmission tooth 8221 is provided at the bottom end of the transmission rod 822. A detection component 824 is installed at the bottom end of the detection block 825. The transmission rod 822 is meshed and driven with the detection component 824 through the first transmission tooth 8221.

[0043] The detection component 824 includes a detection housing 8241 and a second connecting member 8248. The detection housing 8241 is installed at the bottom end of the detection block 825, and the second connecting member 8248 is installed at the bottom end of the detection housing 8241. A gear 8243 is rotatably installed on the second connecting member 8248. A first threaded rod 8242 is installed on one side of the gear 8243. A detection column 8244 is slidably installed in the detection housing 8241. A push piece 8246 is slidably installed in the detection housing 8241. A piezoelectric element 8247 is installed between the push pieces 8246. The detection column 8244 is threadedly connected to the first threaded rod 8242. A sliding bar 8249 is installed on the detection column 8244. A sliding groove is provided in the detection housing 8241, and the sliding bar 8249 is slidably installed in the sliding groove. A detection spring 8245 is installed between the push piece 8246 and the detection column 8244. The transmission rod 822 is meshed and driven with the gear 8243 through the first transmission tooth 8221.

[0044] The filter residue component 81 includes a filter screen plate 813, a third threaded rod 811, and a fourth threaded rod 812. A spring telescopic rod 810 is installed on the filter screen plate 813. The top end of the spring telescopic rod 810 is installed with a fifth connecting member 815. A connecting rod 817 is installed between the fifth connecting members 815. Connecting blocks 816 are symmetrically installed on the connecting rod 817. A rotating rod 818 is rotatably installed at the bottom end of the connecting block 816. Both the third threaded rod 811 and the fourth threaded rod 812 are rotatably installed on the fourth connecting member 837. The third threaded rod 811 is meshed and driven with the second protective shell 112, and the fourth threaded rod 812 is meshed and driven with the first protective shell 111. Symmetrical threads are provided on both the third threaded rod 811 and the fourth threaded rod 812. Sliding blocks 819 are threadedly installed on both the third threaded rod 811 and the fourth threaded rod 812. The sliding blocks 819 are slidably connected to the rotating rod 818. In the initial state, the filter screen plate 813 is located at the top end of the cooling pool 836 and does not contact the coolant. In the detection state, the filter screen plate 813 is located at the bottom end of the cooling pool 836 and is completely immersed in the cooling pool 836.

[0045] A chute 8191 is provided on the sliding block 819. The limiting rod 839 is fitted in the chute 8191, and the sliding block 819 is slidably connected to the limiting rod 839 through the chute 8191. A first tooth groove 8111 is provided on the third threaded rod 811, and a second transmission tooth 1121 is provided on the second protective shell 112. The first tooth groove 8111 is meshed and driven with the second transmission tooth 1121. A second tooth groove 8121 is provided on the fourth threaded rod 812, and a third transmission tooth 1111 is provided on the first protective shell 111. The third transmission tooth 1111 is meshed and driven with the first tooth groove 8111.

[0046] The slag removal assembly 84 includes a first connecting member 841 which is respectively installed on the first protective shell 111 and the second protective shell 112. A first electric telescopic rod 842 is installed on the first connecting member 841. A second electric telescopic rod 843 is installed on the output shaft of the first electric telescopic rod 842. A scraping plate 844 is installed on the output shaft of the second electric telescopic rod 843. A side scraping strip 845 is installed on the scraping plate 844. A vibration partition plate 814 is installed on the filter screen plate 813.

[0047] The vibration partition plate 814 is provided with corrugated grooves 8141. A scraping bar 8441 is installed at the bottom end of the scraping plate 844. The scraping plate 844 is provided with a scraping groove 8442. A vibration column 8443 is arranged in the scraping groove 8442.

[0048] The working principle of the present invention: The control system controls the hoisting equipment to hoist the ladle 3 filled with molten metal liquid onto the rotary table 2. The rotary table 2 drives the ladle 3 to rotate so that the ladle 3 is aligned with the feeding port of the tundish 4. The metal liquid flows into the tundish 4 from the bottom end of the ladle 3. The tundish 4 diverts the metal liquid into the mold 5. The mold 5 cools the metal liquid into a metal slab. After the slab enters the secondary cooling device 6, it enters the straightening machine 7. The straightening machine 7 stretches the slab. The stretched slab is transported by the transport device 9 to the flame cutter 10. The control system turns on the electric slide rail 12. The electric slide rail 12 drives the moving support 11 to move longitudinally and ensures that the moving speed of the moving support 11 is consistent with the transport speed of the slab, so that the moving support 11 is relatively stationary with respect to the slab; the detection and recovery device 8 on the first protective shell 111 and the second protective shell 112 moves together with the moving support 11.

[0049] The control system turns on the flame cutter 10 and the drive motor 833. The flame cutter 10 ejects high-temperature flames while sliding horizontally. The output shaft of the drive motor 833 drives the second threaded rod 835 to rotate. According to the operating principle of the screw rod, the second threaded rod 835 drives the entire waste residue collection assembly 83 to move horizontally at the same speed as the flame cutter 10 through the third connecting member 834, so that the flame cutter 10 and the waste residue collection assembly 83 remain relatively stationary and the gun head of the flame cutter 10 is always located at the center of the waste residue collection assembly 83. The high-temperature flame of the flame cutter 10 melts and cuts the slab. Under the impact of the high-temperature flame, the melted slab forms splashing molten slag. Part of the molten slag is blocked by the slag collection baffle 831. Another part of the molten slag directly falls downward into the cooling pool 836 and is cooled and solidified by the circulating cooling liquid in the cooling pool 836. Some of the molten slag in contact with the slag collection baffle 831 enters the cooling pool 836 after being ejected by colliding with the slag collection baffle 831. And some parts adhere to the slag collection baffle 831. The cooling liquid in the cooling pipeline 8311 circulates to cool down the slag collection baffle 831, so that the molten slag on it is cooled and solidified, thus completing the blocking and collection of the molten slag, preventing the molten slag from splashing and causing damage to other devices.

[0050] The trimming detector 82 moves together with the waste slag collection component 83. When the current shovel block 821 moves to the cutting position, the front shovel block 821 shovels off the slag adhering to the bottom of the slab due to sputtering and the slag hanging at the cutting position. When the oxygen pressure ejected by the flame cutter 10 is sufficient, most of the hanging slag can be cleaned under the impact of high-pressure oxygen. When the oxygen pressure is insufficient, a large amount of hanging slag will occur at the cutting position, resulting in a decline in cutting quality. When the front shovel block 821 shovels off the unfrozen hanging slag, the hanging slag will generate resistance to the front shovel block 821. After the front shovel block 821 is subjected to the resistance, it overcomes the elastic force of the conduction spring 823 and drives the transmission rod 822 to slide in the detection block 825. The transmission rod 822 drives the gear 8243 to rotate through the first transmission tooth 8221. The gear 8243 drives the first threaded rod 8242 to rotate. The first threaded rod 8242 drives the detection column 8244 to rotate. Since the sliding strip 8249 on the detection column 8244 is engaged with the sliding groove in the detection housing 8241, the detection column 8244 cannot rotate. The detection column 8244 converts the rotation into sliding in the detection housing 8241. The two detection columns 8244 slide and approach each other. At the same time, a thrust is applied to the push piece 8246 through the detection spring 8245. The push piece 8246 squeezes the piezoelectric element 8247 towards the middle. The piezoelectric element 8247 generates charges after being pressed. Since the hanging slag is continuous, the generated charges are also continuous. While the sputtered slag is scattered and discontinuous, this will cause intermittent fluctuations in the amount of charge. The charges are transmitted to the control system through the wire. When the oxygen pressure is smaller, the hanging slag is more serious, and the resistance to the front shovel block 821 is greater, thus making the electrical signal stronger. The control system compares the electrical signal with the preset value to judge the degree of hanging slag. When the amount of hanging slag exceeds the specified value, the control system controls the flame cutter 10 to automatically increase the oxygen pressure to reduce the amount of hanging slag; the cut slab is transported away by the transport device 9; when a large amount of hanging slag and molten slag adhere to the front shovel block 821 after long-term scraping, an external cleaning device is used to clean it.

[0051] After cutting is completed, the control system shuts down the hot wire cutter and repeats the previous steps in reverse to reset and restore the detection and recovery device 8 and the moving bracket 11. The slag filtering assembly 81 slides in reverse with the waste collection assembly to reset. When the third threaded rod 811 and the fourth threaded rod 812 respectively come into contact with the second transmission gear 1121 and the third transmission gear 1111, the second transmission gear 1121 and the third transmission gear 1111 respectively drive the third threaded rod 811 and the fourth threaded rod 812 to rotate. Since the third threaded rod 811 is provided with symmetric threads, the third threaded rod 811 rotates and drives two sliding blocks 819 to slide along the limiting rod 839 and approach each other. The sliding block 819 approaches and squeezes two connecting blocks 816 through the rotating rod 818. Since the connecting block 816 is fixed on the connecting rod 817 and cannot move, the connecting block 816 drives the connecting rod 817 to rise under the squeezing action. At the same time, the rotating rod 818 rotates with the sliding block 819 and the connecting block 816 respectively. The connecting rod 817 drives one end of the filter screen plate 813 to rise synchronously through the fifth connecting piece 815 and the spring telescopic rod 810. Similarly, the fourth threaded rod 812 rotates and finally drives the other end of the filter screen plate 813 to rise synchronously. When the slag filtering assembly 81 is completely reset with the waste collection assembly, that is, when the detection and recovery device 8 is located on one side of the slab, the filter screen plate 813 just completely rises, the filter screen plate 813 is located at the top of the cooling pool 836 and does not contact the coolant. The molten slag in the cooling pool 836 is carried out of the water surface by the filter screen plate 813, so as to achieve the purpose of filtering the cooling pool 836 and collecting the molten slag.

[0052] After the filter screen plate 813 is lifted, the control system activates the first electric telescopic rod 842. The first electric telescopic rod 842 drives the scraper 844 and the side scraping strip 845 to extend forward through the second electric telescopic rod 843. When extending forward, the side scraping strip 845 fits with the upper half of the slag collection baffle 831. While the side scraping strip 845 extends forward, it scrapes the molten slag on the slag collection baffle 831. After the molten slag on the upper half of the slag collection baffle 831 is completely scraped off, the control system activates the second electric telescopic rod 843. The output shaft of the second electric telescopic rod 843 drives the scraper 844 to move downward until the shoveling strip 8441 at the bottom of the scraper 844 contacts the filter screen plate 813. At this time, the vibrating partition 814 is engaged with the scraping groove 8442, and the vibrating column 8443 abuts against the corrugated groove 8141 on the vibrating partition 814. The control system controls the first electric telescopic rod 842 to retract. The first electric telescopic rod 842 drives the scraper 844 and the side scraping strip 845 to retract. The side scraping strip 845 scrapes the molten slag on the lower half of the slag collection wall. The scraped molten slag falls on the filter screen plate 813. The side scraper 844 and the shoveling strip 8441 thereon cooperate to push the molten slag on the filter screen plate 813 towards the slag collection box 832. When the scraper 844 moves, the vibrating column 8443 on it squeezes the protrusions on the corrugated groove 8141 of the vibrating partition 814. After being squeezed, the vibrating partition 814 drives the spring telescopic rod 810 to stretch downward through the filter screen plate 813. When the vibrating column 8443 slides to the groove on the corrugated groove 8141, the spring telescopic rod 810 loses pressure and thus drives the filter screen plate 813 and the vibrating partition 814 to retract upward. This process is repeated, causing the filter screen plate 813 to produce bumpy vibrations. The vibrations enable the molten slag on the filter to break away more quickly, preventing the molten slag from getting stuck in the mesh holes of the filter screen plate 813, thereby realizing the collection and packaging of the molten slag and the cleaning of the filter screen plate 813. After that, the above steps are cyclically repeated to realize the casting of the metal slab.

[0053] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and without departing from the spirit or basic characteristics of the present invention, the present invention can be implemented in other specific forms. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be encompassed within the present invention. Any reference signs in the claims should not be regarded as limiting the claimed rights.

Claims

1. A metal smelting and casting device with an automatic pressure boosting function, characterized in that: The casting device includes a base (1), a rotary table (2) is installed on the base (1), a ladle (3) is provided on the rotary table (2), a tundish (4) is provided on the base (1), the tundish (4) is located below the ladle (3), a mold (5) is installed on the base (1), the mold (5) is located below the tundish (4), a secondary cooling device (6) is installed on the base (1), a straightening machine (7) is provided on one side of the base (1), a conveying device (9) and an electric slide rail (12) are provided on one side of the straightening machine (7), a moving bracket (11) is slidably installed on the electric slide rail (12), a flame cutter (10) is slidably installed on the moving bracket (11), a first protective shell (111) and a second protective shell (112) are respectively installed on the moving bracket (11), and a detection and recovery device (8) is installed between the first protective shell (111) and the second protective shell (112); the detection and recovery device (8) includes a waste residue collection component (83) and a slag removal component (84), the slag removal component (84) is respectively connected to the first protective shell (111) and the second protective shell (112), the waste residue collection component (83) is installed between the first protective shell (111) and the second protective shell (112), a slag filtering component (81) is installed on the waste residue collection component (83), and a trimming detector (82) is installed on the waste residue collection component (83).

2. The metal smelting and casting device with an automatic pressure boosting function according to claim 1, wherein: The waste residue collection component (83) includes a cooling pool (836), a sliding rod (838) and a driving motor (833), third connectors (834) are installed on both sides of the cooling pool (836), the sliding rod (838) is installed in the second protective shell (112), the driving motor (833) is installed on the first protective shell (111), the output shaft of the telescopic driving motor (833) penetrates through the first protective shell (111) and is provided with a second threaded rod (835), the threaded rod is rotatably connected to the second protective shell (112), a slag collection box (832) is installed at one end of the cooling pool (836), fourth connectors (837) are installed at both ends of the cooling pool (836), a limiting rod (839) is installed between the fourth connectors (837), slag collection baffles (831) are symmetrically installed at the top of the cooling pool (836), a cooling pipeline (8311) is provided in the slag collection baffles (831), a slag filtering component (81) is installed on the fourth connectors (837), a trimming detector (82) is installed between the slag collection baffles (831), and a circulating coolant is provided in the cooling pool (836).

3. The metal smelting and casting device with an automatic pressurization function according to claim 2, characterized in that: The trimming detector (82) includes a detection block (825), which is installed between slag collecting baffles (831). A transmission rod (822) is slidably installed in the detection block (825). A front shovel block (821) is installed at one end of the transmission rod (822). A conduction spring (823) is installed between the front shovel block (821) and the detection block (825). A first transmission gear (8221) is provided at the bottom end of the transmission rod (822). A detection component (824) is installed at the bottom end of the detection block (825). The transmission rod (822) is meshed and driven with the detection component (824) through the first transmission gear (8221).

4. A metal smelting and casting device with an automatic pressure boosting function according to claim 3, characterized in that: The detection component (824) includes a detection housing (8241) and a second connecting member (8248). The detection housing (8241) is installed at the bottom end of the detection block (825). The second connecting member (8248) is installed at the bottom end of the detection housing (8241). A gear (8243) is rotatably installed on the second connecting member (8248). A first threaded rod (8242) is installed on one side of the gear (8243). A detection column (8244) is slidably installed in the detection housing (8241). A push piece (8246) is slidably installed in the detection housing (8241). A piezoelectric element (8247) is installed between the push pieces (8246). The detection column (8244) is threadedly connected to the first threaded rod (8242). A sliding strip (8249) is installed on the detection column (8244). A sliding groove is provided in the detection housing (8241). The sliding strip (8249) is slidably installed in the sliding groove. A detection spring (8245) is installed between the push piece (8246) and the detection column (8244). The transmission rod (822) is meshed and driven with the gear (8243) through the first transmission gear (8221).

5. The metal smelting and casting device with an automatic pressurization function according to claim 2, characterized in that: The slag filtering component (81) includes a filter screen plate (813), a third threaded rod (811) and a fourth threaded rod (812). A spring telescopic rod (810) is installed on the filter screen plate (813). A fifth connecting member (815) is installed at the top end of the spring telescopic rod (810). A connecting rod (817) is installed between the fifth connecting members (815). Connecting blocks (816) are symmetrically installed on the connecting rod (817). A rotating rod (818) is rotatably installed at the bottom end of the connecting block (816). The third threaded rod (811) and the fourth threaded rod (812) are both rotatably installed on a fourth connecting member (837). The third threaded rod (811) is meshed and driven with a second protective shell (112). The fourth threaded rod (812) is meshed and driven with a first protective shell (111). Symmetrical threads are provided on both the third threaded rod (811) and the fourth threaded rod (812). Sliding blocks (819) are threadedly installed on both the third threaded rod (811) and the fourth threaded rod (812). The sliding blocks (819) are slidably connected to the rotating rod (818).

6. The metal smelting and casting device with an automatic pressure boosting function according to claim 5, characterized in that: A chute (8191) is provided on the sliding block (819), the limiting rod (839) is fitted in the chute (8191), the sliding block (819) is slidably connected to the limiting rod (839) through the chute (8191), a first tooth groove (8111) is provided on the third threaded rod (811), a second transmission tooth (1121) is provided on the second protective shell (112), and the first tooth groove (8111) is in meshing transmission with the second transmission tooth (1121). A second tooth groove (8121) is provided on the fourth threaded rod (812), a third transmission tooth (1111) is provided on the first protective shell (111), and the third transmission tooth (1111) is in meshing transmission with the first tooth groove (8111).

7. A metal smelting and casting device with an automatic pressurization function according to claim 5, characterized in that: The slag removal assembly (84) includes a first connecting member (841), the first connecting member (841) is respectively installed on the first protective shell (111) and the second protective shell (112), a first electric telescopic rod (842) is installed on the first connecting member (841), a second electric telescopic rod (843) is installed on the output shaft of the first electric telescopic rod (842), a scraper (844) is installed on the output shaft of the second electric telescopic rod (843), a side scraping strip (845) is installed on the scraper (844), and a vibration partition plate (814) is installed on the filter screen plate (813).

8. A metal smelting and casting device with an automatic pressure boosting function according to claim 7, characterized in that: A corrugated groove (8141) is provided on the vibration partition plate (814), a scraping bar (8441) is installed at the bottom end of the scraper (844), a scraping groove (8442) is provided on the scraper (844), and a vibration column (8443) is provided in the scraping groove (8442).

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