Efficient separation device for ferrous metallurgy dust and sludge

Abstract

The invention provides an efficient separation device for ferrous metallurgy dust and mud, and relates to the field of metallurgy dust and mud separation. The device comprises a rotary kiln; the outer side of one end of the rotary kiln is fixedly sleeved with a driving ring; the outer side of the driving ring is sleeved with a supporting sleeve, and the supporting sleeve is rotationally connected with the outer surface of the rotary kiln. And a supporting seat is fixedly connected to the outer side of the supporting sleeve. Through mutual cooperation of structures such as a rotating disc, a stirring rod and a scraping plate, when the rotating disc rotates, the stirring rod is driven to rotate with the rotating disc as the center, the stirring rod drives the scraping plate to rotate at the same time, then dust and mud particles are scattered, and the situation that internal dust and mud are heated unevenly due to adhesion of the dust and mud particles is reduced; meanwhile, the scraping plate can scrape off dust and mud on the inner side of the rotary kiln, the problems that the rotary kiln is blocked and dust and mud refining is incomplete due to the fact that the dust and mud adhere to the rotary kiln are solved, and the dust and mud refining and separating efficiency is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of metallurgical dust separation, in particular to a high-efficiency separation device for steel metallurgical dust. BACKGROUND

[0002] In steel production, various metallurgical dusts are generated. If they are directly discharged or stored, it will pollute the environment. At the same time, the dusts contain iron, carbon and other useful resources. Directly discarding them will also waste resources. Therefore, the dusts need to be processed to extract useful metals.

[0003] The current high-efficiency separation device for steel metallurgical dust generally heats the dust in a rotary kiln to complete the extraction. However, when the dust is extracted in the rotary kiln, if the dust has a high proportion of medium particles, it will cause multiple dust particles to adhere, resulting in slow heat transfer inside, incomplete heating of the dust, incomplete volatilization, incomplete separation and extraction, and low efficiency. In addition, the dust will adhere to the inner wall of the rotary kiln during extraction, which will cause the adhered dust to be unable to fall and be recycled, resulting in resource waste. SUMMARY

[0004] (I) Technical problems solved In view of the deficiencies of the prior art, the present application provides a high-efficiency separation device for steel metallurgical dust, which reduces the problems of incomplete separation and extraction of the dust, reduces the separation effect and extraction efficiency, and causes the dust to adhere to the inner side of the rotary kiln, resulting in resource waste.

[0005] (II) Technical solutions To achieve the above purpose, the present application is implemented by the following technical solutions: a high-efficiency separation device for steel metallurgical dust, comprising a rotary kiln; a driving ring is fixedly connected to one end of the rotary kiln; a support sleeve is arranged outside the driving ring and is rotatably connected to the outer surface of the rotary kiln; a support seat is fixedly connected to the outside of the support sleeve; a separation mechanism is arranged at one end of the rotary kiln close to the driving ring and cooperates with the inside of the rotary kiln; a plurality of evenly distributed teeth are fixedly connected to the outside of the driving ring, and a hole is formed in the bottom end of the support sleeve; a driving mechanism is arranged below one end of the rotary kiln close to the support seat and cooperates with the separation mechanism and the teeth outside the support sleeve through the hole; and a heating mechanism is arranged at one end of the rotary kiln away from the support seat and cooperates with the rotary kiln.

[0006] Preferably, the separating mechanism comprises an agitating rod, a scraper, a rotating ring, a blocking ring, a separating hole, a mounting block and a transmission assembly; the agitating rod is arranged on the inner side of the rotary kiln, and a plurality of agitating rods are evenly distributed along the rotary kiln; the transmission assembly is arranged on the outer side of one end of the rotary kiln, and the agitating rod is matched with the transmission assembly.

[0007] Preferably, the scraper is fixedly connected to the outer side of the agitating rod, and a plurality of scrapers are evenly distributed along the agitating rod; the scraper is in contact with the inner wall of the rotary kiln.

[0008] Preferably, the rotating ring is rotatably connected to the inner side of the rotary kiln, and a plurality of rotating rings are distributed side by side along the rotary kiln; the rotating ring is fixedly connected with the blocking ring on the inner side; the blocking ring is fixedly connected with the mounting block on the inner side, and a plurality of mounting blocks are arranged corresponding to the agitating rods; the outer side of the agitating rod is rotatably connected with the inner side of the mounting block; the separating hole is arranged on the outer surface of the blocking ring; a plurality of separating holes are evenly distributed along the blocking ring, and the diameters of the separating holes gradually decrease away from the transmission assembly.

[0009] Preferably, the transmission assembly comprises a rotating disc, a fixed seat, a limiting disc, an inner tooth ring, a protective shell and a self-rotating gear; the rotating disc is rotatably connected to one end of the rotary kiln; the limiting disc is rotatably connected to the side of the rotating disc away from the rotary kiln; the fixed seat is fixedly sleeved on the outer side of the limiting disc, and the bottom end of the fixed seat is connected with the ground; the inner tooth ring is fixedly connected to the side of the limiting disc away from the rotating disc; one end of the agitating rod extends to the inside of the inner tooth ring through the rotating disc; the self-rotating gear is fixedly connected to one end of the agitating rod, and the self-rotating gear is meshingly connected with the inner tooth ring; the protective shell is sleeved on the outer side of the inner tooth ring, and the protective shell is fixedly connected with the limiting disc.

[0010] Preferably, the driving mechanism comprises a mounting box, a support plate, a motor, a driving bevel gear, a first bevel gear, a second bevel gear, a connecting rod, a contact gear, a driving rod, a driving wheel and a transmission belt; the mounting box is arranged directly below the rotary kiln, the motor is fixedly installed on the inner bottom surface of the mounting box; the driving bevel gear is fixedly connected with the output end of the motor; the driving rod is rotatably connected with the inner side of the mounting box; the first bevel gear is fixedly connected to one end of the driving rod close to the driving bevel gear; the first bevel gear is meshingly connected with one side of the driving bevel gear; the driving wheel is fixedly connected to one end of the driving rod away from the first bevel gear; the inner sides of the two ends of the transmission belt are respectively in contact with the outer sides of the driving wheel and the rotating disc.

[0011] Preferably, the second bevel gear is meshed with the end of the driving bevel gear away from the first bevel gear; the connecting rod is fixed to the center of one side of the second bevel gear and is rotatably connected to the inner side of the mounting box; the contact gear is fixed to the end of the connecting rod away from the second bevel gear; the contact gear is meshed with teeth through a hole and slot; the support plate is rotatably connected to the outer side of the end of the connecting rod near the contact gear and is fixed to the bottom surface.

[0012] Preferably, the heating mechanism includes a housing, a burner, and a support frame; the housing is fitted onto the outer side of the rotary kiln at the end away from the support base; the burner is fixed to the inner side of the housing and extends into the inner side of the rotary kiln; the support frame is fixed to the outer side of the burner and is fixed to the bottom surface; the end of the rotary kiln near the housing is inclined downward.

[0013] Preferably, the rotary kiln has an internal channel; molten salt is placed inside the channel.

[0014] Preferably, a limiting ring is fixedly sleeved on the outside of the rotary kiln, and several limiting rings are arranged side by side along the outside of the rotary kiln; a base is provided directly below the limiting ring; a fixing block is fixedly connected to both ends of the top surface of the base; a rotating column is rotatably connected to the inner side of the upper end of the fixing block, and the limiting ring is in contact with the rotating column.

[0015] (III) Beneficial Effects This invention provides a high-efficiency separation device for dust and sludge in the iron and steel metallurgy industry. It has the following beneficial effects: By designing a rotating disk, stirring rod, and scraper that work together, the rotating disk drives the stirring rod to rotate around the disk as its center. The stirring rod then drives the scraper to rotate simultaneously, thus breaking up the dust and sludge particles. This reduces the adhesion of dust and sludge particles, preventing uneven heating and incomplete separation of the dust and sludge inside the kiln. At the same time, the scraper removes dust and sludge from the inside of the rotary kiln, reducing dust and sludge adhesion that can cause blockages and incomplete dust and sludge refining. This improves the efficiency of dust and sludge refining and separation.

[0016] By setting up a mechanism that coordinates the agitator, scraper, and rotating gear, the rotating gear driven by the agitator rotates along the internal gear ring, causing the scraper to rotate as well. This improves the scraper's ability to break up dust and sludge particles, and also allows the rotating scraper to further remove dust and sludge adhering to the inner wall of the rotary kiln, thereby further improving the efficiency of dust and sludge refining and separation.

[0017] By setting up a combination of structures such as a blocking ring, a separation hole, and a rotating ring, smaller dust and sludge particles can flow out from the separation hole, while the blocking ring blocks larger dust and sludge particles. This prolongs the time that larger dust and sludge particles remain inside the rotary kiln, reducing the problem of dust and sludge particles falling before fully evaporating due to short residence time in the rotary kiln, thus improving the separation effect of ash and sludge. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of a high-efficiency separation device for dust and sludge in iron and steel metallurgy proposed in this invention. Figure 2 This is a schematic diagram of the internal cross-sectional structure of a high-efficiency separation device for dust and sludge in steel metallurgy proposed in this invention. Figure 3 This is a schematic diagram of the structural relationship between the rotary kiln and the limiting ring in a high-efficiency separation device for dust and sludge in iron and steel metallurgy, as proposed in this invention. Figure 4 This is a schematic diagram of the fit between the support sleeve and the support base of a high-efficiency separation device for dust and sludge in iron and steel metallurgy proposed in this invention. Figure 5 This is a schematic cross-sectional view of the side of a rotary kiln, which is a high-efficiency separation device for dust and sludge in iron and steel metallurgy proposed in this invention. Figure 6 This is a schematic diagram of the working relationship between the stirring rod and the scraper in a high-efficiency separation device for dust and sludge in steel metallurgy proposed in this invention. Figure 7 This is a schematic diagram of the structural relationship between the baffle ring and the mounting block of a high-efficiency separation device for dust and sludge in steel metallurgy proposed in this invention. Figure 8 This is a schematic diagram of the overall structure of the rotating disk of a high-efficiency separation device for dust and sludge in iron and steel metallurgy proposed in this invention. Figure 9 This is a schematic diagram of the working relationship between the drive wheel and the transmission belt of a high-efficiency separation device for dust and sludge in steel metallurgy proposed in this invention. Figure 10 This is a schematic diagram of the overall structure of the mounting box for a high-efficiency separation device for dust and sludge in steel metallurgy proposed in this invention. Figure 11 This is a schematic diagram of the structural relationship between the shell and the burner of a high-efficiency separation device for iron and steel metallurgical dust and sludge proposed in this invention. Figure 12 This is a schematic diagram of the overall structure of the shell of a high-efficiency separation device for dust and sludge in steel metallurgy proposed in this invention.

[0019] The components include: 1. Rotary kiln; 2. Drive ring; 3. Support sleeve; 4. Support base; 5. Separation mechanism; 6. Drive mechanism; 7. Heating mechanism; 8. Base; 9. Rotating column; 10. Fixing block; 11. Limiting ring; 501. Stirring rod; 502. Scraper; 503. Rotating ring; 504. Blocking ring; 505. Separation hole; 506. Mounting block; 507. Transmission assembly; 50701. Rotating disk; 50702. Fixing base; 50703. 50704. Limiting plate; 50705. Internal gear ring; 50706. Protective shell; 50707. Rotating gear; 601. Mounting box; 602. Support plate; 603. Motor; 604. Drive bevel gear; 605. First bevel gear; 606. Second bevel gear; 607. Connecting rod; 608. Contact gear; 609. Drive rod; 610. Drive wheel; 611. Transmission belt; 701. Setting shell; 702. Burner; 703. Support frame. Detailed Implementation

[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0021] Example 1: like Figures 1-12 As shown, this embodiment of the invention provides a high-efficiency separation device for dust and sludge in steel metallurgy, including a rotary kiln 1; a drive ring 2 is fixedly sleeved on the outer side of one end of the rotary kiln 1; a support sleeve 3 is sleeved on the outer side of the drive ring 2, and the support sleeve 3 is rotatably connected to the outer surface of the rotary kiln 1; a support base 4 is fixedly connected to the outer side of the support sleeve 3; a separation mechanism 5 is provided at the end of the rotary kiln 1 near the drive ring 2, and the separation mechanism 5 cooperates with the interior of the rotary kiln 1; a plurality of evenly distributed teeth are fixedly connected to the outer side of the drive ring 2, and a slot is opened at the bottom end of the support sleeve 3; a drive mechanism 6 is provided below the end of the rotary kiln 1 near the support base 4, and the drive mechanism 6 cooperates with the separation mechanism 5 and the teeth passing through the slot and the outer side of the support sleeve 3; a heating mechanism 7 is provided at the end of the rotary kiln 1 away from the support base 4, and the heating mechanism 7 cooperates with the rotary kiln 1.

[0022] In the above process, the rotary kiln 1 is driven to rotate by the drive mechanism 6, which in turn drives the separation mechanism 5 to rotate. By utilizing the differential speed during rotation, the separation mechanism 5 breaks up the dust particles, while the dust inside the rotary kiln 1 is scraped off. This also extends the time that larger dust particles can remain inside the rotary kiln 1, thereby reducing the problems of uneven heating of the dust and incomplete refining, and improving the efficiency of dust refining and separation.

[0023] The separation mechanism 5 includes an agitator 501, a scraper 502, a rotating ring 503, a blocking ring 504, a separation hole 505, a mounting block 506, and a transmission assembly 507. The agitator 501 is located inside the rotary kiln 1, and there are several agitators 501 evenly distributed along the rotary kiln 1. The transmission assembly 507 is located outside one end of the rotary kiln 1, and the agitator 501 cooperates with the transmission assembly 507.

[0024] In the above, by setting up several stirring rods 501, the stirring rods 501 can break up the adhering dust particles, thereby reducing the problem of uneven heating of the internal dust and mud, which leads to incomplete volatilization and separation.

[0025] The scraper 502 is fixed to the outside of the stirring rod 501, and there are several scrapers 502 evenly distributed along the stirring rod 501; the scraper 502 is in contact with the inner wall of the rotary kiln 1.

[0026] In the above, by setting the scraper 502 to contact the inner wall of the rotary kiln 1, the scraper 502 can scrape off the dust and mud adhering to the inner side of the rotary kiln 1 when it rotates and moves, thereby reducing the adhesion of dust and mud and preventing the problem of dust and mud not falling off from the inner side of the rotary kiln 1.

[0027] A rotating ring 503 is rotatably connected to the inner side of the rotary kiln 1, and several rotating rings 503 are arranged side by side along the rotary kiln 1; a blocking ring 504 is fixedly connected to the inner side of the rotating ring 503; a mounting block 506 is fixedly connected to the inner side of the blocking ring 504, and several mounting blocks 506 are arranged and correspond to the stirring rod 501; the outer side of the stirring rod 501 is rotatably connected to the inner side of the mounting block 506; a separation hole 505 is opened on the outer surface of the blocking ring 504; several separation holes 505 are arranged and evenly distributed along the blocking ring 504, and the diameter of the separation hole 505 gradually decreases as it moves away from the transmission assembly 507.

[0028] In the above, by setting the diameter of the separation hole 505 to decrease in sequence, the separation hole 505 can screen the dust and mud particles, and the larger dust and mud particles can stay inside the rotary kiln 1 for a longer period of time.

[0029] The transmission assembly 507 includes a rotating disk 50701, a fixed base 50702, a limiting disk 50703, an internal gear ring 50704, a protective shell 50705, and a rotating gear 50706; the rotating disk 50701 is rotatably connected to one end of the rotary kiln 1; the limiting disk 50703 is rotatably connected to the side of the rotating disk 50701 away from the rotary kiln 1; the fixed base 50702 is fixedly sleeved on the outside of the limiting disk 50703, and the bottom end of the fixed base 50702 is connected to the ground; The internal gear ring 50704 is fixedly connected to the side of the limiting disk 50703 away from the rotating disk 50701; one end of the stirring rod 501 passes through the rotating disk 50701 and extends into the interior of the internal gear ring 50704; the rotating gear 50706 is fixedly connected to one end of the stirring rod 501, and the rotating gear 50706 meshes with the internal gear ring 50704; the protective shell 50705 is sleeved on the outside of the internal gear ring 50704, and the protective shell 50705 is fixedly connected to the limiting disk 50703.

[0030] In the above, through the mutual cooperation between the rotating gear 50706 and the internal gear ring 50704, the rotating gear 50706 rotates along the internal gear ring 50704, thereby driving the stirring rod 501 to rotate simultaneously.

[0031] The drive mechanism 6 includes a mounting box 601, a support plate 602, a motor 603, a drive bevel gear 604, a first bevel gear 605, a second bevel gear 606, a connecting rod 607, a contact gear 608, a drive rod 609, a drive wheel 610, and a transmission belt 611. The mounting box 601 is located directly below the rotary kiln 1, and the motor 603 is fixedly mounted on the inner bottom surface of the mounting box 601. The drive bevel gear 604 is fixedly connected to the output end of the motor 603. The drive rod 609 is rotatably connected to the inner side of the mounting box 601. The first bevel gear 605 is fixedly connected to the end of the drive rod 609 near the drive bevel gear 604. The first bevel gear 605 is meshed with one side of the drive bevel gear 604. The drive wheel 610 is fixedly connected to the end of the drive rod 609 away from the first bevel gear 605. The inner sides of both ends of the transmission belt 611 are in contact with the drive wheel 610 and the outer side of the rotating disk 50701, respectively.

[0032] In the above, by setting the transmission belt 611 to cooperate with the drive wheel 610 and the rotating disk 50701, the drive wheel 610 drives the rotating disk 50701 to rotate simultaneously through the transmission belt 611, thereby completing the drive.

[0033] The second bevel gear 606 is meshed with the end of the drive bevel gear 604 away from the first bevel gear 605; the connecting rod 607 is fixedly connected to the center of one side of the second bevel gear 606, and the connecting rod 607 is rotatably connected to the inner side of the mounting box 601; the contact gear 608 is fixedly connected to the end of the connecting rod 607 away from the second bevel gear 606; the contact gear 608 is meshed with the teeth through a hole and slot; the support plate 602 is rotatably connected to the outer side of the end of the connecting rod 607 near the contact gear 608, and the support plate 602 is fixedly connected to the bottom surface.

[0034] In the above, by setting the support plate 602 and the connecting rod 607 to cooperate with each other, the support plate 602 further supports the connecting rod 607, making the rotation of the connecting rod 607 more stable.

[0035] The heating mechanism 7 includes a housing 701, a burner 702, and a support frame 703; the housing 701 is fitted onto the outer side of the rotary kiln 1 away from the support base 4; the burner 702 is fixed to the inner side of the housing 701 and extends to the inner side of the rotary kiln 1; the support frame 703 is fixed to the outer side of the burner 702 and is fixed to the bottom surface; the end of the rotary kiln 1 near the housing 701 is inclined downward.

[0036] In the above, by tilting the end of the rotary kiln 1 close to the housing 701 downwards, the sludge particles inside the rotary kiln 1 will roll into the inside of the housing 701, thus completing the automatic falling.

[0037] The rotary kiln 1 has an internal channel; molten salt is placed inside the channel.

[0038] In the above, the high temperature melting and stability of molten salt allows the molten salt to melt when the rotary kiln 1 is at a high temperature, thereby making the heat distribution more uniform and the dust and mud more evenly heated.

[0039] A limiting ring 11 is fixedly sleeved on the outside of the rotary kiln 1, and several limiting rings 11 are arranged side by side along the outside of the rotary kiln 1; a base 8 is provided directly below the limiting ring 11; a fixing block 10 is fixedly connected to both ends of the top surface of the base 8; a rotating column 9 is rotatably connected to the inner side of the upper end of the fixing block 10, and the limiting ring 11 is in contact with the rotating column 9.

[0040] In the above, by setting the limit ring 11 and the rotating column 9 to cooperate with each other, the rotary kiln 1 is further supported, making the rotary kiln 1 more stable when rotating.

[0041] Working principle: During use, push the end of the equipment near the protective shell 50705 to the output end of the conveyor, and connect the input end of the belt conveyor to the output port of the granulator. Then start the burner 702, which sprays flames into the interior of the rotary kiln 1 to heat the rotary kiln 1. At the same time, start the motor 603, which drives the drive bevel gear 604 to rotate. When the drive bevel gear 604 rotates, it drives the second bevel gear 606 to rotate, which in turn drives the connecting rod 607 to drive the contact gear 608 to rotate. At this time, the contact gear 608 will drive the drive ring 2 to rotate through the engagement of the teeth on the outer side of the drive ring 2. The drive ring 2 will drive the rotary kiln 1 to rotate slowly, so that the heater can spray heat evenly onto the inner wall of the rotating rotary kiln 1. As the temperature of the rotary kiln 1 gradually increases, the molten salt inside the rotary kiln 1 will gradually melt into liquid, thus making the heating of the rotary kiln 1 more uniform. After the rotary kiln 1 is heated to a suitable temperature, dust and sludge are added to the granulator, which then processes the dust and sludge into multiple particles. These particles are then conveyed by a conveyor to the higher end of the inclined section of the rotary kiln 1. When the motor 603 starts, it also drives the first bevel gear 605 to rotate. When the first bevel gear 605 rotates, it drives the drive wheel 610 to rotate simultaneously via the drive rod 609. The rotating drive wheel 610 drives the upper contact rotating disk 5070 via the transmission belt 611. 1. When rotating, the rotating disk 50701 and the rotary kiln 1 will have a speed difference. When the rotating disk 50701 rotates, it will drive the self-rotating gear 50706 to rotate along the rotating disk 50701. When the rotating disk 50701 rotates, it will drive the multiple stirring rods 501 on the inner side to rotate in the forward direction around the rotating disk 50701. At this time, the stirring rods 501 will drive the scraper 502 to break up the dust and mud particles and make the dust and mud particles roll, reducing the problem of excessive dust and mud particles causing stickiness. When the stirring rod 501 rotates around the rotating disk 50701, it also drives the rotating gear 50706 to rotate simultaneously. Since the rotating gear 50706 is engaged with the internal gear ring 50704, the rotating gear 50706 will also rotate on its own axis while rotating around the inner side of the internal gear ring 50704. This will cause the scraper 502 to also rotate in the forward direction, making the scraper 502 disperse the dust particles more evenly. At the same time, since the scraper 502 is always in contact with the inner wall of the rotary kiln 1, as the scraper 502 rotates and rotates on its own axis, it will scrape off a small amount of dust adhering to the inner side of the rotary kiln 1, reducing the problem of dust adhesion causing blockage and waste, and preventing incomplete refining and separation. After the dust particles enter the rotary kiln 1 near the protective shell 50705, larger dust particles will be blocked by the blocking rings 504 in sequence. If the particle material is about the same size as the gradually decreasing diameter of the separation holes 505 that approach the shell 701, it means that the dust particles are small, and the internal substances are easier to separate and volatilize. The smaller dust particles will then pass directly through the separation holes 505 and enter the interior of the shell 701. Meanwhile, the larger particles blocked by the blocking rings 504 will be continuously moved from the bottom to the top of the rotary kiln 1 and then fall down under the agitation of the scraper 502. Since the rotary kiln 1 is in an inclined state, the dust particles will pass through the current blocking ring 504 when falling and come into contact with the next blocking ring 504. They will then stay for a period of time to allow the dust particles to be heated and wait for substances such as zinc to volatilize and separate until the dust particles become iron slag and enter the interior of the shell 701 and are discharged from the bottom outlet of the shell 701, waiting for the next step of processing.

[0042] Example 2: The difference between this embodiment and embodiment one is that when multiple stirring rods 501 rotate forward around the rotating disk 50701, they will also drive the blocking ring 504 to rotate through the mounting block 506, thereby making the separation hole 505 come into contact with the dust and mud particles more frequently, thus improving the screening efficiency.

[0043] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A high-efficiency separation device for dust and sludge in iron and steel metallurgy, comprising a rotary kiln (1); characterized in that: A drive ring (2) is fixedly sleeved on the outer side of one end of the rotary kiln (1); a support sleeve (3) is sleeved on the outer side of the drive ring (2), and the support sleeve (3) is rotatably connected to the outer surface of the rotary kiln (1); a support base (4) is fixedly connected to the outer side of the support sleeve (3); a separation mechanism (5) is provided at the end of the rotary kiln (1) near the drive ring (2), and the separation mechanism (5) cooperates with the interior of the rotary kiln (1); a number of evenly distributed teeth are fixedly connected to the outer side of the drive ring (2), and a hole groove is opened at the bottom end of the support sleeve (3); a drive mechanism (6) is provided below the end of the rotary kiln (1) near the support base (4), and the drive mechanism (6) cooperates with the separation mechanism (5) and the teeth that pass through the hole groove and are on the outer side of the support sleeve (3); a heating mechanism (7) is provided at the end of the rotary kiln (1) away from the support base (4), and the heating mechanism (7) cooperates with the rotary kiln (1).

2. The high-efficiency separation device for iron and steel metallurgical dust and sludge according to claim 1, characterized in that: The separation mechanism (5) includes an agitator (501), a scraper (502), a rotating ring (503), a blocking ring (504), a separation hole (505), a mounting block (506), and a transmission assembly (507); the agitator (501) is located on the inner side of the rotary kiln (1), and there are several agitators (501) evenly distributed along the rotary kiln (1); the transmission assembly (507) is located on the outer side of one end of the rotary kiln (1), and the agitator (501) cooperates with the transmission assembly (507).

3. The high-efficiency separation device for dust and sludge in iron and steel metallurgy according to claim 2, characterized in that: The scraper (502) is fixed to the outside of the stirring rod (501), and there are several scrapers (502) evenly distributed along the stirring rod (501); the scraper (502) is in contact with the inner wall of the rotary kiln (1).

4. The high-efficiency separation device for dust and sludge in iron and steel metallurgy according to claim 2, characterized in that: The rotating ring (503) is rotatably connected to the inner side of the rotary kiln (1), and there are several rotating rings (503) arranged side by side along the rotary kiln (1); a blocking ring (504) is fixedly connected to the inner side of the rotating ring (503); a mounting block (506) is fixedly connected to the inner side of the blocking ring (504), and there are several mounting blocks (506) corresponding to the stirring rod (501); the outer side of the stirring rod (501) is rotatably connected to the inner side of the mounting block (506); the separation hole (505) is opened on the outer surface of the blocking ring (504); there are several separation holes (505) evenly distributed along the blocking ring (504), and the diameter of the separation hole (505) gradually decreases as it moves away from the transmission assembly (507).

5. The high-efficiency separation device for dust and sludge in iron and steel metallurgy according to claim 2, characterized in that: The transmission assembly (507) includes a rotating disk (50701), a fixed seat (50702), a limiting disk (50703), an internal gear ring (50704), a protective shell (50705), and a rotating gear (50706); the rotating disk (50701) is rotatably connected to one end of the rotary kiln (1); the limiting disk (50703) is rotatably connected to the side of the rotating disk (50701) away from the rotary kiln (1); the fixed seat (50702) is fixedly sleeved on the outside of the limiting disk (50703), and the bottom end of the fixed seat (50702) is connected to the ground. The internal gear ring (50704) is fixedly connected to the side of the limiting disk (50703) away from the rotating disk (50701); one end of the stirring rod (501) passes through the rotating disk (50701) and extends into the interior of the internal gear ring (50704); the rotating gear (50706) is fixedly connected to one end of the stirring rod (501), and the rotating gear (50706) meshes with the internal gear ring (50704); the protective shell (50705) is sleeved on the outside of the internal gear ring (50704), and the protective shell (50705) is fixedly connected to the limiting disk (50703).

6. The high-efficiency separation device for iron and steel metallurgical dust and sludge according to claim 5, characterized in that: The drive mechanism (6) includes a mounting box (601), a support plate (602), a motor (603), a drive bevel gear (604), a first bevel gear (605), a second bevel gear (606), a connecting rod (607), a contact gear (608), a drive rod (609), a drive wheel (610), and a transmission belt (611); the mounting box (601) is located directly below the rotary kiln (1), and the motor (603) is fixedly installed on the bottom surface inside the mounting box (601); the drive bevel gear (604) and the motor (603) The output end of the drive rod (609) is fixedly connected; the drive rod (609) is rotatably connected to the inner side of the mounting box (601); the first bevel gear (605) is fixedly connected to the end of the drive rod (609) near the drive bevel gear (604); the first bevel gear (605) is meshed with one side of the drive bevel gear (604); the drive wheel (610) is fixedly connected to the end of the drive rod (609) away from the first bevel gear (605); the inner sides of both ends of the transmission belt (611) are in contact with the outer sides of the drive wheel (610) and the rotating disk (50701), respectively.

7. The high-efficiency separation device for iron and steel metallurgical dust and sludge according to claim 6, characterized in that: The second bevel gear (606) is meshed with the end of the drive bevel gear (604) away from the first bevel gear (605); the connecting rod (607) is fixed to the center of one side of the second bevel gear (606), and the connecting rod (607) is rotatably connected to the inner side of the mounting box (601); the contact gear (608) is fixed to the end of the connecting rod (607) away from the second bevel gear (606); the contact gear (608) is meshed with the teeth through a slot; the support plate (602) is rotatably connected to the outer side of the end of the connecting rod (607) near the contact gear (608), and the support plate (602) is fixed to the bottom surface.

8. The high-efficiency separation device for dust and sludge in iron and steel metallurgy according to claim 1, characterized in that: The heating mechanism (7) includes a housing (701), a burner (702), and a support frame (703); the housing (701) is fitted on the outer side of the rotary kiln (1) away from the support base (4); the burner (702) is fixed to the inner side of the housing (701) and extends to the inner side of the rotary kiln (1); the support frame (703) is fixed to the outer side of the burner (702) and is fixed to the bottom surface; the rotary kiln (1) is inclined downward at the end near the housing (701).

9. The high-efficiency separation device for dust and sludge in iron and steel metallurgy according to claim 1, characterized in that: The rotary kiln (1) has a through groove inside; molten salt is placed inside the through groove.

10. The high-efficiency separation device for iron and steel metallurgical dust and sludge according to claim 1, characterized in that: A limiting ring (11) is fixedly sleeved on the outside of the rotary kiln (1), and several limiting rings (11) are arranged side by side along the outside of the rotary kiln (1); a base (8) is provided directly below the limiting ring (11); a fixing block (10) is fixedly connected to both ends of the top surface of the base (8); a rotating column (9) is rotatably connected to the inner side of the upper end of the fixing block (10), and the limiting ring (11) is in contact with the rotating column (9).

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