A vacuum consumable arc furnace with a furnace cleaning function

Abstract

The present invention discloses a vacuum consumable arc furnace with a furnace cleaning function, which relates to the technical field of arc furnaces and includes a mounting plate, a scraping member and a brushing member. In the present invention, the main pipe rotates to drive the arc-shaped shovel to rotate, scraping various residual impurities on the inner wall of the furnace. When the arc-shaped shovel contacts harder or larger impurities, the arc-shaped shovel will squeeze the first spring at this time, and the force of the collision between the arc-shaped shovel and the hard impurities is reduced through the first spring, avoiding damage to the coating on the inner wall of the furnace. The moving rod is used to push the moving piston to move, squeezing the liquid in the liquid storage cavity. At this time, the liquid enters the blocking cavity through the connecting pipe, pushing the blocking piston to move, so that the through hole is aligned with the flow channel on the connecting rod. At this time, the cleaning liquid enters the inclined nozzle through the flow channel on the connecting rod and is directly sprayed to the place where the arc-shaped shovel contacts the hard impurities, further softening and diluting the hard impurities separately, facilitating the arc-shaped shovel to shovel them away and improving the cleaning efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of electric arc furnaces, and more specifically, to a consumable electrode vacuum arc furnace with a furnace cleaning function. Background Art

[0002] A consumable electrode vacuum arc furnace is a metallurgical device used for producing high-quality metals and alloys, especially suitable for manufacturing key materials in the fields of aviation, aerospace, and other high-performance applications. The VAR furnace melts metal electrodes by arc heat in a high-vacuum environment, and the molten metal drops into a water-cooled copper mold to re-solidify into an ingot. During the whole process, since it is carried out in a vacuum environment, gas impurities (such as hydrogen, nitrogen, etc.) in the metal can be effectively removed, and non-metallic inclusions can be reduced, thereby improving the purity and uniformity of the metal material. It is applied to the production of titanium and titanium alloys, nickel-based superalloys, special steels, and other metal materials with extremely high purity requirements, and is one of the key devices indispensable in modern metallurgical industry, which is of great significance for promoting the development of high-tech fields.

[0003] During the use of a consumable electrode vacuum arc furnace, the furnace chamber needs to be cleaned regularly. After each melting, there will be some metals, oxides, and other impurities remaining inside the furnace chamber. If these residues are not removed in time, it may affect the quality of the next melting. To ensure the consistency of each melting process and the stability of product quality, it is very important to keep the furnace chamber clean. Usually, a robotic arm system is used in combination with tools such as brushes and scrapers for physical cleaning. Sometimes, chemical cleaning methods are also needed to remove residues that are difficult to physically remove.

[0004] In the actual use of the prior art, since the inner wall of the furnace chamber of a consumable electrode vacuum arc furnace is usually coated with some special coatings to protect the metal matrix from high temperature, corrosion, and wear, when using a scraper to clean the inner wall of the furnace chamber, if the scraper material is too hard or too much pressure is applied, scratches or wear points may be generated on the surface of the coating, destroying the continuity and integrity of the coating, thereby affecting its performance and service life. Therefore, in view of the above technical problems, it is necessary to provide a consumable electrode vacuum arc furnace with a furnace cleaning function. Summary of the Invention

[0005] The purpose of the present invention is to provide a consumable electrode vacuum arc furnace with a furnace cleaning function to solve the above problems.

[0006] To achieve the above purpose, the technical solution provided by an embodiment of the present invention is as follows:

[0007] A vacuum consumable arc furnace with a furnace cleaning function, comprising a mounting plate, a scraping member and a brushing member. A liquid delivery pipe is fixedly connected to the inner cavity of the mounting plate. The lower end of the liquid delivery pipe is communicated with a main pipe through a rotary joint. A water pump is installed on the main pipe. A gear ring is fixedly connected to the outer surface of the main pipe. A gear meshes with the outer surface of the gear ring. A furnace cover is installed on the outer surface of the mounting plate. The main pipe is installed on the outer surface of the furnace body. The scraping member includes two connecting rods symmetrically and fixedly connected to the outer surface of the main pipe. One end of the connecting rod is fixedly connected with a mounting seat. An arc-shaped scraper is movably connected to the inner cavity of the mounting seat. A liquid storage cavity is formed in the inner cavity of the mounting seat. A moving piston is slidably connected to the inner cavity of the liquid storage cavity. Two moving rods are symmetrically and fixedly connected to one side of the arc-shaped scraper. The moving rod penetrates through the mounting seat and is fixedly connected with the moving piston. A flow channel is formed in the inner cavity of the connecting rod and communicated with an inclined nozzle. The flow channel formed in the connecting rod is communicated with the main pipe. A blocking cavity is formed in the inner cavity of the connecting rod. A blocking piston is movably connected to the inner cavity of the blocking cavity. The through hole has the same diameter as the flow channel in the connecting rod. The blocking piston moves in the blocking cavity. The blocking cavity and the liquid storage cavity are communicated through a connecting pipe. The inclined nozzle is inclined and faces the cutting edge of the arc-shaped scraper. A plurality of arc-shaped protrusions are uniformly arranged on the outer surface of the rotating ball. The end of the push rod away from the inner rod is hemispherical and abuts against the outer surface of the rotating ball. Half of the rotating ball is located inside the main pipe and the other half is located inside the sleeve. The outer surface of the brush abuts against the furnace chamber of the furnace body. The brushing member includes two sleeves symmetrically and fixedly communicated with the outer surface of the main pipe. A rotating ball is rotatably connected to the inner cavity of the sleeve near the main pipe end. An inner rod is inserted into the inner cavity of the sleeve. A sealing piston is fixedly connected to the outer surface of the inner rod. A push rod is fixedly connected to one end of the inner rod located inside the sleeve. A brush is fixedly connected to one end of the inner rod located outside the sleeve. A wiping sponge is installed on the outer surface of the main pipe. A detection rod is installed at one end of the outer surface of the main pipe.

[0008] As a further improvement of the present invention, two electric push rods I are symmetrically and fixedly connected to the inner cavity of the furnace cover. The lower ends of the electric push rods I are fixedly connected with the mounting plate. The lower end of the main pipe is communicated with a multi-head nozzle. A motor is fixedly connected to the lower surface of the mounting plate. The output shaft end of the motor is fixedly connected with the gear. The main pipe is located inside the furnace chamber of the furnace body.

[0009] As a further improvement of the present invention, the wiping sponge is circular and abuts against the furnace chamber of the furnace body. A fixing ring is fixedly connected to the inner side of the wiping sponge. Four fixing rods are uniformly and fixedly connected to the inner cavity of the fixing ring. The other ends of the fixing rods are fixedly connected with the main pipe.

[0010] As a further improvement of the present invention, the arc-shaped scraper abuts against the furnace chamber of the furnace body. The arc-shaped scraper moves in the mounting seat. The moving piston moves in the inner cavity of the liquid storage cavity. A sealing liquid is filled between the moving piston and the liquid storage cavity.

[0011] As a further improvement of the present invention, a first spring is sleeved on the outer surface of the moving rod. One end of the first spring is fixedly connected to the outer surface of the arc-shaped scraper, and the other end of the first spring is fixedly connected to the outer surface of the mounting seat.

[0012] As a further improvement of the present invention, the inner rod and the sealing piston move within the inner cavity of the sleeve. A second spring is sleeved on the outer surface of the inner rod. One end of the second spring is fixedly connected to the outer surface of the sealing piston, and the other end of the second spring is fixedly connected to the inner wall of the inner cavity of the sleeve.

[0013] As a further improvement of the present invention, the detection rod includes a mounting rod fixedly connected to the outer surface of the main pipe. An ultrasonic probe is installed at one end of the mounting rod, and an annular seal box surrounds the outer surface of the ultrasonic probe.

[0014] As a further improvement of the present invention, two second electric push rods are symmetrically and fixedly connected to one side of the seal box. The other end of the second electric push rod is fixedly connected to the main pipe, and a seal sponge is fixedly connected to the inner cavity of the seal box.

[0015] Compared with the prior art, the advantages of the present invention are as follows:

[0016] In this solution, the motor drives the gear to rotate, which drives the gear ring to rotate, driving the main pipe to rotate. The main pipe pumps the cleaning solution through a water pump and sprays it onto the furnace chamber first through the multi-head nozzles, so as to soften the impurities and processed residues in the furnace chamber. The rotation of the main pipe ensures that the liquid can be evenly distributed on the entire inner wall of the furnace chamber. The multi-head nozzles allow the liquid to be sprayed simultaneously from multiple directions, increasing the coverage area and improving the cleaning efficiency.

[0017] In this solution, the rotation of the main pipe drives the arc-shaped scraper to rotate, scraping various residual impurities on the inner wall of the furnace chamber. When the arc-shaped scraper contacts harder or larger impurities, the arc-shaped scraper will compress the first spring at this time. The first spring reduces the force of the collision between the arc-shaped scraper and the hard impurities, avoiding damage to the coating on the inner wall of the furnace chamber, and pushing the moving piston to move through the moving rod, squeezing the liquid in the liquid storage cavity. At this time, the liquid enters the blockage cavity through the connecting pipe, pushing the blockage piston to move, so that the through hole is aligned with the flow channel on the connecting rod. At this time, the cleaning liquid enters the inclined nozzle through the flow channel on the connecting rod and is directly sprayed onto the place where the arc-shaped scraper contacts the hard impurities, further softening and diluting the hard impurities separately. The force sprayed by the inclined nozzle will wash away the softened part on the surface of the hard impurities and rush towards the unsoftened interior of the hard impurities, further softening the impurities and facilitating the arc-shaped scraper to shovel them away, improving the cleaning efficiency.

[0018] This solution uses a brush to scrub the already scraped areas. When the cleaning liquid flows in the main pipe, the water flow will impact the rotating ball. When the rotating ball rotates, the arc-shaped protrusions on its outer surface will continuously impact and push the push rod to move. When the push rod moves, it will squeeze spring 2 and push the brush outward through the inner rod. At this time, the brush squeezes the furnace and produces a bending deformation. The bristles of the brush will stretch outward when bent, thereby creating gaps, allowing impurities on the brush to fall off, preventing the brush from carrying the cleaned impurities all the time, thereby affecting the scrubbing effect. At the same time, the pressure between the brush and the surface of the furnace changes, which can also improve the cleaning effect. The wiping sponge is used for the last step of wiping to remove residual moisture and tiny particles in the furnace to ensure that the surface of the furnace is clean and smooth.

[0019] This solution uses an ultrasonic probe to detect the state of the inner wall of the furnace to evaluate the integrity of the coating. If there is a dent or bulge somewhere on the inner wall of the furnace, the surface of the furnace is damaged or there is residue from cleaning. At this time, the electric push rod 2 is started to drive the seal box and the seal sponge to move and contact the furnace, leaving a circular color mark to circle the problematic area for easy maintenance by the operator. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 A half-section schematic diagram of the internal structure of the present invention;

[0022] Figure 3 For the present invention Figure 2 The enlarged structural diagram at A in the middle;

[0023] Figure 4 It is a schematic diagram of the local structure of the present invention;

[0024] Figure 5 It is a schematic diagram of the structure of the scraping member of the present invention;

[0025] Figure 6 It is a schematic diagram of the scraping member structure of the present invention;

[0026] Figure 7 A schematic diagram of the internal structure of a scraping member of the present invention in half section;

[0027] Figure 8 It is a schematic diagram of the internal structure of the scraping member of the present invention in a side section;

[0028] Figure 9 It is a schematic diagram of the disassembly of the structure of the scrubbing member of the present invention;

[0029] Figure 10 It is a schematic diagram of the disassembly of the detection rod structure of the present invention.

[0030] Description of the numbers in the figure:

[0031] 1. Mounting plate; 101. First electric push rod; 102. Infusion tube; 2. Main pipe; 201. Water pump; 202. Gear ring; 203. Motor; 204. Gear; 3. Multi-head nozzle; 4. Scraping member; 401. Connecting rod; 402. Mounting seat; 403. Arc-shaped scraper; 404. Liquid storage cavity; 405. Moving rod; 406. First spring; 407. Moving piston; 408. Connecting pipe; 409. Blocking cavity; 410. Blocking piston; 411. Inclined nozzle; 412. Through hole; 5. Brushing member; 501. Sleeve; 502. Rotating ball; 503. Arc-shaped protrusion; 504. Pushing rod; 505. Inner rod; 506. Sealing piston; 507. Second spring; 508. Brush; 6. Wiping sponge; 601. Fixed rod; 602. Fixed ring; 7. Detection rod; 701. Mounting rod; 702. Ultrasonic probe; 703. Second electric push rod; 704. Seal box; 705. Seal sponge. Detailed implementation manners

[0032] 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.

[0033] Embodiment 1:

[0034] Please refer to Figure 1 、 Figure 2 and Figure 4 , a consumable electrode vacuum arc furnace with a furnace cleaning function, including a mounting plate 1, a scraping member 4 and a brushing member 5. An infusion tube 102 is fixedly connected to the inner cavity of the mounting plate 1. The lower end of the infusion tube 102 is connected to the main pipe 2 through a rotary joint. A water pump 201 is installed on the main pipe 2. A gear ring 202 is fixedly connected to the outer surface of the main pipe 2. A gear 204 meshes with the outer surface of the gear ring 202. A furnace cover is installed on the outer surface of the mounting plate 1. A furnace body is installed on the outer surface of the main pipe 2.

[0035] Specifically, two first electric push rods 101 are symmetrically and fixedly connected to the inner cavity of the furnace cover. The lower end of the first electric push rod 101 is fixedly connected to the mounting plate 1. The lower end of the main pipe 2 is connected to a multi-head nozzle 3. A motor 203 is fixedly connected to the lower surface of the mounting plate 1. The output shaft end of the motor 203 is fixedly connected to the gear 204. The main pipe 2 is located in the furnace chamber of the furnace body.

[0036] Further, the mounting plate 1 provides the basic support for the entire device and is fixedly installed inside the furnace cover through the first electric push rod 101. The first electric push rod 101 is used to drive the entire cleaning device to move up and down inside the furnace body to meet the cleaning requirements at different heights inside the furnace body. After the cleaning is completed, it moves back inside the furnace cover again.

[0037] The main pipe 2 is rotationally and sealingly connected to the lower end of the infusion pipe 102 through a rotary joint. The infusion pipe 102 is connected to an external cleaning solution and is used to transport the cleaning solution to the main pipe 2. The choice of the cleaning solution mainly depends on the composition of the residue, and an appropriate acidic or alkaline solution is selected. For example, for alumina residue, sodium hydroxide solution can be used, and for iron oxides such as rust, hydrochloric acid can be used. Certain organic solvents can soften or dissolve specific types of residues.

[0038] The main pipe 2 serves as the main liquid transmission channel and rotates through the motor 203 driving the gear 204. The water pump 201 is used to extract the cleaning solution and distribute it to the multi-head spray nozzles 3. The multi-head spray nozzles 3 are used to evenly spray the cleaning liquid to facilitate softening the impurities and processed residues inside the furnace chamber. The rotation of the main pipe 2 ensures that the liquid can be evenly distributed on the entire inner wall of the furnace chamber. The multi-head spray nozzles 3 allow the liquid to be sprayed simultaneously from multiple directions, increasing the coverage area and improving the cleaning efficiency.

[0039] Embodiment 2:

[0040] Please refer to Figure 1 、 Figure 2 、 Figure 3 、 Figure 5 、 Figure 6 、 Figure 7 and Figure 8 , a consumable electrode vacuum arc furnace with a furnace chamber cleaning function, further includes a scraping member 4, which includes two connecting rods 401 symmetrically and fixedly connected to the outer surface of the main pipe 2. One end of the connecting rod 401 is fixedly connected with a mounting seat 402. An arc-shaped scraper 403 is movably connected inside the mounting seat 402. A liquid storage cavity 404 is opened inside the mounting seat 402. A moving piston 407 is slidably connected inside the liquid storage cavity 404. Two moving rods 405 are symmetrically and fixedly connected to one side of the arc-shaped scraper 403. The moving rods 405 penetrate through the mounting seat 402 and are fixedly connected with the moving piston 407. A flow channel is opened inside the connecting rod 401 and is communicated with an inclined nozzle 411. The flow channel opened inside the connecting rod 401 is communicated with the main pipe 2. A blocking cavity 409 is opened inside the connecting rod 401. A blocking piston 410 is movably connected inside the blocking cavity 409.

[0041] Specifically, the arc-shaped shovel blade 403 abuts against the furnace chamber of the furnace body. The arc-shaped shovel blade 403 moves within the mounting seat 402. The moving piston 407 moves within the inner cavity of the liquid storage chamber 404. A sealing liquid is filled between the moving piston 407 and the liquid storage chamber 404. A first spring 406 is sleeved on the outer surface of the moving rod 405. One end of the first spring 406 is fixedly connected to the outer surface of the arc-shaped shovel blade 403, and the other end of the first spring 406 is fixedly connected to the outer surface of the mounting seat 402. A through hole 412 is formed in the plugging piston 410, and the diameter of the through hole 412 is the same as that of the flow channel within the connecting rod 401. The plugging piston 410 moves within the plugging chamber 409. The plugging chamber 409 and the liquid storage chamber 404 are communicated through a connecting pipe 408. The inclined nozzle 411 is inclined and faces the cutting edge of the arc-shaped shovel blade 403.

[0042] Further, the scraping member 4 is the first step of cleaning. The main pipe 2 rotates to drive the arc-shaped shovel blade 403 to rotate, scraping various residual impurities on the inner wall of the furnace chamber. Under normal circumstances, the arc-shaped shovel blade 403 can easily generate conventionally softened impurities.

[0043] When the arc-shaped shovel blade 403 comes into contact with harder or larger impurities, at this time, the arc-shaped shovel blade 403 will squeeze the first spring 406, reducing the force of collision between the arc-shaped shovel blade 403 and the hard impurities through the first spring 406, avoiding damage to the coating on the inner wall of the furnace chamber, and pushing the moving piston 407 to move through the moving rod 405, squeezing the sealing liquid within the liquid storage chamber 404. At this time, the sealing liquid enters the plugging chamber 409 through the connecting pipe 408. The sealing liquid plays a key role in transmitting pressure. Multiple pistons are in close contact with the inner wall to ensure that the liquid does not leak. The best choices for the sealing liquid are silicone oil, hydraulic oil, a mixture of deionized water and ethylene glycol, etc., which have good chemical stability, high and low temperature resistance, and low volatility, and are suitable for long-term use.

[0044] The sealing liquid pushes the plugging piston 410 to move, aligning the through hole 412 with the flow channel on the connecting rod 401. At this time, the cleaning liquid enters the inclined nozzle 411 through the flow channel on the connecting rod 401 and is directly sprayed onto the place where the arc-shaped shovel blade 403 contacts the hard impurities, further softening and diluting the hard impurities separately. The force sprayed by the inclined nozzle 411 will impact and wash away the softened part on the surface of the hard impurities and rush towards the unsoftened interior of the hard impurities, further softening the impurities, facilitating the arc-shaped shovel blade 403 to shovel them away.

[0045] Conversely, under normal circumstances, when the arc-shaped shovel blade 403 is not blocked by hard and large-particle impurities, the plugging piston 410 blocks the flow channel on the connecting rod 401 in place. The first spring 406, as an elastic connecting member, helps the arc-shaped shovel blade 403 to automatically reset without being subjected to additional pressure.

[0046] Embodiment 3:

[0047] Please refer to Figure 1 and Figure 2 、 Figure 3 、 Figure 4 、 Figure 9 and Figure 10 , a consumable electrode vacuum arc furnace with a furnace cleaning function, further comprising a brushing member 5, including two sleeves 501 symmetrically and fixedly connected to the outer surface of the main pipe 2. A rotating ball 502 is rotatably connected to the inner cavity of one end of the sleeve 501 close to the main pipe 2. An inner rod 505 is inserted into the inner cavity of the sleeve 501. A sealing piston 506 is fixedly connected to the outer surface of the inner rod 505. A push rod 504 is fixedly connected to one end of the inner rod 505 located inside the sleeve 501. A brush 508 is fixedly connected to one end of the inner rod 505 located outside the sleeve 501. A wiping sponge 6 is installed on the outer surface of the main pipe 2. A detection rod 7 is installed at one end of the outer surface of the main pipe 2.

[0048] Specifically, the inner rod 505 and the sealing piston 506 move in the inner cavity of the sleeve 501. A second spring 507 is sleeved on the outer surface of the inner rod 505. One end of the second spring 507 is fixedly connected to the outer surface of the sealing piston 506, and the other end of the second spring 507 is fixedly connected to the inner cavity wall of the sleeve 501. A plurality of arc-shaped protrusions 503 are uniformly arranged on the outer surface of the rotating ball 502. The end of the push rod 504 away from the inner rod 505 is hemispherical and abuts against the outer surface of the rotating ball 502. Half of the rotating ball 502 is located inside the main pipe 2, and the other half is located inside the sleeve 501. The outer surface of the brush 508 abuts against the furnace chamber of the furnace body.

[0049] The wiping sponge 6 is circular and abuts against the furnace chamber of the furnace body. A fixing ring 602 is fixedly connected to the inner side of the wiping sponge 6. Four fixing rods 601 are uniformly and fixedly connected to the inner cavity of the fixing ring 602. The other ends of the fixing rods 601 are fixedly connected to the main pipe 2.

[0050] The detection rod 7 includes a mounting rod 701 fixedly connected to the outer surface of the main pipe 2. An ultrasonic probe 702 is installed at one end of the mounting rod 701. An annular seal box 704 surrounds the outer surface of the ultrasonic probe 702. Two second electric push rods 703 are symmetrically and fixedly connected to one side of the seal box 704. The other ends of the second electric push rods 703 are fixedly connected to the main pipe 2. A seal sponge 705 is fixedly connected to the inner cavity of the seal box 704.

[0051] Further, the brushed area that has been shoveled is synchronously brushed by the brush 508. The brush 508 is made of elastic fiber material and has a certain elasticity. It can quickly rebound after deformation. When the cleaning liquid flows in the main pipe 2, the water flow will impact and rotate the rotating ball 502. When the rotating ball 502 rotates, the arc-shaped protrusions 503 on its outer surface will continuously impact and push the push rod 504 to move. When the push rod 504 moves, it will squeeze the second spring 507 and push the brush 508 to move outward through the inner rod 505. At this time, the brush 508 squeezes the furnace chamber, generating a bending deformation. When the bristles of the brush 508 bend, they will expand outward, creating a gap, causing the impurities on the brush 508 to fall off, avoiding the brush 508 from always carrying the cleaned impurities, thus affecting the brushing effect.

[0052] When the arc-shaped protrusion 503 rotates away from the push rod 504, at this time, other positions on the rotating ball 502 come into contact with the push rod 504, and the elastic force of the second spring 507 itself drives the push rod 504 back to its original position. At this time, the brush 508 loses the extrusion force and returns to its original state, forming a continuous reciprocating motion, continuously cleaning the brush 508.

[0053] When the inner rod 505 moves, the sealing piston 506 ensures the sealing performance, preventing the cleaning liquid from leaking out of the sleeve 501. At the same time, when the pressure between the brush 508 and the furnace chamber surface changes, it can also improve the cleaning effect.

[0054] The wiping sponge 6 is used for the last step of wiping to remove the residual moisture and fine particles in the furnace chamber, ensuring that the furnace chamber surface is clean and smooth. The wiping sponge 6 is in a circular ring shape, increasing the contact area with the furnace chamber and better wiping it clean.

[0055] After the cleaning is completed, the ultrasonic probe 702 is used to detect the state of the inner wall of the furnace chamber to evaluate the coating integrity. If there are depressions or protrusions in a certain place on the inner wall of the furnace chamber, it means that there is damage on the furnace chamber surface or there is residue in the cleaning. At this time, the electric push rod two 703 is started to drive the stamp box 704 and the stamp sponge 705 to move into contact with the furnace chamber, leaving a circular color mark to circle the problematic area, facilitating the maintenance by the operator. The stamp sponge 705 is made of elastic porous material and adsorbs a paint with a conspicuous color (such as a conspicuous color like red, blue, etc.), helping the operator to better identify.

[0056] Working principle: During the use of the device, the electric push rod 101 is used to drive the entire cleaning device to move up and down in the furnace body to meet the cleaning requirements at different heights in the furnace body. The main pipe 2 is rotationally and hermetically connected to the lower end of the infusion pipe 102 through a rotary joint. The motor 203 is started to drive the gear 204 to rotate, driving the gear ring 202 to rotate, driving the main pipe 2 to rotate, and thus driving multiple cleaning components on the main pipe 2 to rotate to clean the furnace body in all directions. After each layer of cleaning is completed, the electric push rod 101 drives the cleaning components to continue to move downward and drive them to the next layer. The main pipe 2 pumps the cleaning solution through the water pump 201 and sprays it onto the furnace chamber through the multi-nozzle 3 first to soften the impurities and processed residues in the furnace chamber. The main pipe 2 rotates to ensure that the liquid can be evenly distributed on the inner wall of the entire furnace chamber. The multi-nozzle 3 sprays the liquid simultaneously from multiple directions, increasing the coverage area and improving the cleaning efficiency.

[0057] The scraping part 4 is the first step of cleaning. The rotation of the main pipe 2 drives the arc-shaped scraper 403 to rotate to scrape various residual impurities on the inner wall of the furnace chamber. When the arc-shaped scraper 403 comes into contact with harder or larger impurities, at this time, the arc-shaped scraper 403 will squeeze the first spring 406, and the force of the collision between the arc-shaped scraper 403 and the hard impurities is reduced through the first spring 406 to avoid damaging the coating on the inner wall of the furnace chamber. The moving rod 405 is pushed to drive the moving piston 407 to move, squeezing the liquid in the liquid storage cavity 404. At this time, the liquid enters the blocking cavity 409 through the connecting pipe 408, pushing the blocking piston 410 to move, so that the through hole 412 is aligned with the flow channel on the connecting rod 401. At this time, the cleaning liquid enters the inclined nozzle 411 through the flow channel on the connecting rod 401 and is directly sprayed onto the place where the arc-shaped scraper 403 contacts the hard impurities, further softening and diluting the hard impurities alone. The force sprayed by the inclined nozzle 411 will impact and wash away the softened part on the surface of the hard impurities and rush towards the unsoftened interior of the hard impurities to further soften the impurities, facilitating the arc-shaped scraper 403 to shovel them away.

[0058] After the arc-shaped shovel 403 shovels away impurities first, then the brush 508 brushes the shoveled area. When the cleaning liquid flows in the main pipe 2, it impacts the rotating ball 502 and makes it rotate. When the rotating ball 502 rotates, the arc-shaped protrusion 503 on its outer surface continuously impacts and pushes the push rod 504 to move. When the push rod 504 moves, it squeezes the second spring 507 and pushes the brush 508 to move outwards through the inner rod 505. At this time, the brush 508 squeezes the furnace chamber and generates a bending deformation. When the bristles of the brush 508 bend, they will expand outwards, thus creating a gap, so that the impurities on the brush 508 fall off. When the inner rod 505 moves, the sealing piston 506 ensures the sealing performance and prevents the cleaning liquid from leaking out of the sleeve 501. The wiping sponge 6 is used for the last step of wiping to remove the remaining moisture and fine particles in the furnace chamber, ensuring that the surface of the furnace chamber is clean and smooth. After the cleaning is completed, the ultrasonic probe 702 is used to detect the state of the inner wall of the furnace chamber to evaluate the coating integrity. If there is a depression or protrusion at a certain place on the inner wall of the furnace chamber, it means that there is damage on the surface of the furnace chamber or there is residue after cleaning. At this time, the electric push rod two 703 is started to drive the seal box 704 and the seal sponge 705 to move and contact the furnace chamber, leaving a circular color mark to circle the problematic area for the operator to repair.

[0059] 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-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, it is intended to include all changes within the meaning and scope of the equivalent elements of the claims in the present invention. Any reference signs in the claims should not be regarded as limiting the claimed rights.

[0060] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other implementation manners that can be understood by those skilled in the art.

Claims

1. A vacuum consumable arc furnace with a furnace cleaning function, characterized in that: include: A mounting plate (1), wherein an inner cavity of the mounting plate (1) is fixedly connected to a liquid infusion tube (102), the lower end of the liquid infusion tube (102) is connected to a main pipe (2) via a rotating joint, a water pump (201) is mounted on the main pipe (2), a gear ring (202) is fixedly connected to the outer surface of the main pipe (2), a gear (204) is meshed on the outer surface of the gear ring (202), a furnace cover is mounted on the outer surface of the mounting plate (1), and a furnace body is mounted on the outer surface of the main pipe (2); The scraper (4) comprises two connecting rods (401) symmetrically fixedly connected to the outer surface of the main pipe (2), one end of the connecting rod (401) is fixedly connected to a mounting seat (402), the inner cavity of the mounting seat (402) is movably connected to an arc-shaped scraper (403), the inner cavity of the mounting seat (402) is provided with a liquid storage chamber (404), the inner cavity of the liquid storage chamber (404) is slidably connected to a movable piston (407), one side of the arc-shaped scraper (403) is symmetrically fixedly connected to two movable rods (405), the movable rod (405) passes through the mounting seat (402) and is fixedly connected to the movable piston (407), the inner cavity of the connecting rod (401) is provided with a flow channel connected to an oblique nozzle (411), the flow channel provided in the connecting rod (401) is connected to the main pipe (2), and the inner cavity of the connecting rod (401) is provided with a liquid storage chamber (404). A blocking chamber (409) is provided, wherein the blocking chamber (409) is movably connected to a blocking piston (410), the arc-shaped scraper (403) is in contact with the furnace of the furnace body, the arc-shaped scraper (403) moves in the mounting seat (402), the movable piston (407) moves in the liquid storage chamber (404), a sealing liquid is filled between the movable piston (407) and the liquid storage chamber (404), a through hole (412) is provided on the blocking piston (410), the through hole (412) having the same diameter as the flow channel in the connecting rod (401), the blocking piston (410) moves in the blocking chamber (409), the blocking chamber (409) and the liquid storage chamber (404) are connected via a connecting pipe (408), and the inclined nozzle (411) is arranged obliquely and directly faces the blade head of the arc-shaped scraper (403); The scrubbing member (5) comprises two sleeves (501) symmetrically fixedly connected to the outer surface of the main pipe (2); a rotating ball (502) is rotatably connected to the inner cavity of one end of the sleeve (501) close to the main pipe (2); an inner rod (505) is inserted into the inner cavity of the sleeve (501); a sealing piston (506) is fixedly connected to the outer surface of the inner rod (505); a push rod (504) is fixedly connected to one end of the inner rod (505) located inside the sleeve (501); a brush (508) is fixedly connected to one end of the inner rod (505) located outside the sleeve (501); a wiping sponge (6) is installed on the outer surface of the main pipe (2); and a detection rod (7) is installed on one end of the outer surface of the main pipe (2).

2. A vacuum consumable arc furnace with a furnace cleaning function according to claim 1, characterized in that: Two electric push rods (101) are symmetrically fixedly connected to the inner cavity of the furnace cover; the lower ends of the electric push rods (101) are fixedly connected to the mounting plate (1); the lower end of the main pipe (2) is connected to a multi-head nozzle (3); the lower surface of the mounting plate (1) is fixedly connected to a motor (203); the output shaft end of the motor (203) is fixedly connected to a gear (204); and the main pipe (2) is located in the furnace of the furnace body.

3. The vacuum consumable arc furnace with a furnace cleaning function according to claim 1, characterized in that: The wiping sponge (6) is annular and abuts against the furnace of the furnace body. A fixing ring (602) is fixedly connected to the inside of the wiping sponge (6). Four fixing rods (601) are evenly fixedly connected to the inner cavity of the fixing ring (602). The other end of the fixing rod (601) is fixedly connected to the main pipe (2).

4. The vacuum consumable arc furnace with a furnace cleaning function according to claim 1, characterized in that: The outer surface of the moving rod (405) is sleeved with a spring 1 (406), one end of the spring 1 (406) is fixedly connected to the outer surface of the arc-shaped scraper (403), and the other end of the spring 1 (406) is fixedly connected to the outer surface of the mounting seat (402).

5. The vacuum consumable arc furnace with a furnace cleaning function according to claim 1, characterized in that: The inner rod (505) and the sealing piston (506) move in the inner cavity of the sleeve (501); a second spring (507) is sleeved on the outer surface of the inner rod (505); one end of the second spring (507) is fixedly connected to the outer surface of the sealing piston (506); and the other end of the second spring (507) is fixedly connected to the inner cavity wall of the sleeve (501).

6. The vacuum consumable arc furnace with a furnace cleaning function according to claim 1, characterized in that: The outer surface of the rotating ball (502) is evenly provided with a plurality of arc-shaped protrusions (503); the end of the pushing rod (504) away from the inner rod (505) is hemispherical and abuts against the outer surface of the rotating ball (502); half of the rotating ball (502) is located inside the main pipe (2) and the other half is located inside the sleeve (501); and the outer surface of the brush (508) abuts against the furnace of the furnace body.

7. The vacuum consumable arc furnace with a furnace cleaning function according to claim 1, characterized in that: The detection rod (7) comprises a mounting rod (701) fixedly connected to the outer surface of the main pipe (2), an ultrasonic probe (702) being mounted on one end of the mounting rod (701), and an annular seal box (704) is surrounded on the outer surface of the ultrasonic probe (702).

8. The vacuum consumable arc furnace with furnace cleaning function according to claim 7, characterized in that: One side of the seal box (704) is symmetrically and fixedly connected to two electric push rods (703); the other end of the electric push rods (703) is fixedly connected to the main pipe (2); and the inner cavity of the seal box (704) is fixedly connected to a seal sponge (705).

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