Anti-blocking iron mill slag runner nozzle

Abstract

The utility model discloses an anti-blocking iron mill slag runner nozzle which comprises a bottom plate, a smelting furnace is arranged at the top of the bottom plate, a slag discharging runner is fixedly installed at the bottom of the right side of the smelting furnace, a vertical plate located on the right side of the smelting furnace is fixedly installed at the top of the bottom plate, a first rotating seat is fixedly installed at the top of the vertical plate, and a first rotating shaft is rotatably installed on the first rotating seat. The first rotating shaft is fixedly sleeved with a first rotating block. The device is reasonable in design, poured slag can be impacted through the first spray head and the two second spray heads, the slag is effectively pushed to slide towards the lower right portion, the slag deposited and accumulated on the nozzle of the slag flushing trough is scraped through the multiple slag scraping plates, the slag is pushed to slide towards the lower right portion, the nozzle of the slag flushing trough is effectively prevented from being blocked by the slag, and the service life of the slag flushing trough is prolonged. And the inclination angle of the slag sluice nozzle can be adjusted as required, so that the slag can slide off from the slag sluice nozzle more easily, and the dredging efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of blast furnace ironmaking equipment, in particular to an anti-blocking slag ditch mouth of an ironmaking plant. Background Art

[0002] The principle of blast furnace water slag flushing is that when the liquid slag flows into the slag ditch during the blast furnace smelting process, it is broken up by the water flow with a certain impact force, quenched and cooled to form granular water slag. Under special production conditions, such as large amount of blast furnace slag, low slag temperature, more iron in the slag, insufficient water pressure and flow, the high-pressure water spray at the bottom of the slag flushing ditch can no longer expand the slag in time. At this time, a large amount of slag is cooled by water and continuously proliferates to form slag balls, causing the slag flushing ditch to bridge or even be blocked. In severe cases, bottom explosions will occur, causing the blast furnace to reduce or stop production, and also have a greater impact on the safe production of the blast furnace.

[0003] In response to the above problem, a slag flushing ditch anti-blocking device is disclosed in Chinese patent announcement with announcement number CN212800405U, the technical points of which are: it includes a lower slag ditch and a slag flushing ditch arranged below the lower slag ditch, a slag flusher is arranged in the slag flushing ditch and the slag flusher is arranged behind the slag dropping point, a high-pressure air anti-blocking device is arranged above the slag flusher, and the high-pressure air anti-blocking device comprises a seamless steel pipe, a control valve, a high-pressure air bag and a high-pressure air nozzle, a control valve is arranged on the seamless steel pipe and fixedly connected to the high-pressure air bag, a plurality of high-pressure air nozzles are evenly distributed on the other end face of the high-pressure air bag, and the high-pressure air spraying direction is parallel and consistent with the water outlet direction of the slag flusher 3, and the high-pressure air nozzle is arranged 300-500mm behind the slag dropping point.

[0004] In actual operation, it is found that the above scheme still has at least the following defects: the impact force of water on the slag is limited. When the slag is away from the impact point, it will gradually settle, causing the ditch mouth to gradually become blocked and the slag flushing effect is poor. Therefore, we propose an anti-blocking ironmaking plant slag ditch mouth to solve the above problems. Utility Model Content

[0005] 1. Technical issues to be solved

[0006] In view of the deficiencies in the prior art, the utility model provides a slag ditch mouth for an ironmaking plant that is anti-clogging, which solves the problem that the impact force of water on molten slag is limited, and when the molten slag is away from the impact point, it will gradually settle, causing the ditch mouth to gradually become clogged and the slag flushing effect to be poor.

[0007] (II) Technical solution

[0008] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a slag ditch mouth of an ironmaking plant that prevents blockage, comprising a bottom plate, a furnace is arranged on the top of the bottom plate, a lower slag ditch is fixedly installed at the bottom right side of the furnace, a vertical plate located on the right side of the furnace is fixedly installed on the top of the bottom plate, a first rotating seat is fixedly installed on the top of the vertical plate, a first rotating shaft is rotatably installed on the first rotating seat, a first rotating block is fixedly sleeved on the first rotating shaft, a slag flushing ditch mouth located below the lower slag ditch is fixedly installed on the first rotating block, the right side of the slag flushing ditch mouth is an open structure, a dredging mechanism for preventing blockage is arranged on the slag flushing ditch mouth, a slag flushing mechanism for impacting slag and an adjusting mechanism for adjusting the inclination angle of the slag flushing ditch mouth are arranged on the bottom plate.

[0009] Preferably, the dredging mechanism includes two support plates, a connecting shaft, a roller, a plurality of scraping plates, a mounting plate and a motor. The two support plates are respectively fixedly mounted on the front and rear sides of the slag flushing ditch mouth, the connecting shaft is rotatably mounted on the two support plates, the roller is fixedly sleeved on the connecting shaft, the plurality of scraping plates are fixedly mounted on the roller and are evenly distributed, the bottom of the corresponding scraping plates are in sliding contact with the inner wall of the slag flushing ditch mouth, the mounting plate is fixedly mounted on the front side of the front support plate, the motor is fixedly mounted on the top of the mounting plate, and the output shaft end of the motor is fixedly connected to the front end of the connecting shaft.

[0010] Preferably, the slag flushing mechanism includes a water pump, a water tank, a water suction pipe, a drainage pipe, a four-way pipe, a first nozzle, a first hose, two second nozzles and two second hoses. The water pump and the water tank are fixedly mounted on the top of the bottom plate and are located below the mouth of the slag flushing ditch. The water pump is located on the left side of the water tank. The water suction pipe is fixedly mounted on the input end of the water pump. The end of the water suction pipe away from the water pump extends into the water tank. The drainage pipe is fixedly mounted on the output end of the water pump. A through hole is provided at the bottom of the vertical plate. The drainage pipe is located in the through hole. The four-way pipe is fixedly mounted on the end of the drainage pipe away from the water pump. The first nozzle is fixedly mounted on the left side of the top of the mouth of the slag flushing ditch and is located below the lower slag ditch. The first hose is fixedly mounted on the first nozzle. The end of the first hose away from the first nozzle is fixedly connected to a connecting end of the four-way pipe. The two second nozzles are respectively fixedly mounted on the inner walls on the front and rear sides of the mouth of the slag flushing ditch and are obliquely symmetrically distributed. The two second hoses are respectively fixedly mounted on the two second nozzles. The ends of the two second hoses away from the corresponding second nozzles are respectively fixedly connected to the two connecting ends of the four-way pipe.

[0011] Preferably, the adjusting mechanism includes a hydraulic cylinder, a second rotating seat, a second rotating shaft and a second rotating block. The hydraulic cylinder is slidably mounted on the top of the base plate and positioned on the right side of the water tank. The second rotating seat is fixedly mounted on the output shaft end of the hydraulic cylinder. The second rotating shaft is rotatably mounted on the second rotating seat. The second rotating block is fixedly mounted on the bottom of the slag flushing ditch mouth, and the second rotating block is rotatably connected to the second rotating shaft.

[0012] Preferably, a slide groove is provided on the top of the bottom plate and is located on the right side of the water tank. A sliding block is slidably installed in the slide groove, and the top of the sliding block is fixedly connected to the hydraulic cylinder.

[0013] Preferably, a water supply pipe is fixedly installed on the top of the water tank, a valve is fixedly installed on the water supply pipe, and a liquid level meter is fixedly installed on the front side of the water tank.

[0014] Preferably, the roller and the plurality of scraper plates are made of high temperature resistant materials.

[0015] (III) Beneficial effects

[0016] The utility model provides a slag ditch mouth of an ironmaking plant that is anti-blocking and has the following beneficial effects:

[0017] (1) The anti-clogging slag ditch mouth of an ironmaking plant can scrape the slag accumulated on the slag ditch mouth by utilizing a dredging mechanism composed of two support plates, a connecting shaft, a roller, a plurality of slag scraping plates, a mounting plate and a motor, and push the slag to slide to the lower right, thereby effectively preventing the slag from clogging the slag ditch mouth.

[0018] (2) The anti-clogging slag ditch mouth of the ironmaking plant can use the slag flushing mechanism composed of a water pump, a water tank, a suction pipe, a discharge pipe, a four-way pipe, a first nozzle, a first hose, two second nozzles and two second hoses to impact the pouring slag with the first nozzle and the two second nozzles, effectively pushing the slag to slide to the lower right, and avoiding the slag precipitation and accumulation in the slag flushing ditch mouth as much as possible.

[0019] (3) The anti-blocking slag ditch mouth of the ironmaking plant can adjust the inclination angle of the slag ditch mouth as needed by utilizing an adjustment mechanism composed of a hydraulic cylinder, a second rotating seat, a second rotating shaft and a second rotating block, so that the slag can slide out of the slag ditch mouth more easily, thereby improving the dredging efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 The three-dimensional structure of the utility model is shown in FIG. Figure 1 ;

[0021] Figure 2 It is a schematic diagram of the cross-sectional structure of the main view of the utility model;

[0022] Figure 3 The three-dimensional structure of the utility model is shown in FIG. Figure 2 .

[0023] In the figure: 1. bottom plate; 2. furnace; 3. lower slag ditch; 4. vertical plate; 5. first rotating seat; 6. first rotating shaft; 7. first rotating block; 8. slag flushing ditch mouth; 9. supporting plate; 10. connecting shaft; 11. roller; 12. slag scraper; 13. mounting plate; 14. motor; 15. water pump; 16. water tank; 17. suction pipe; 18. drainage pipe; 19. through hole; 20. four-way pipe; 21. first nozzle; 22. first hose; 23. second nozzle; 24. second hose; 25. hydraulic cylinder; 26. second rotating seat; 27. second rotating shaft; 28. second rotating block; 29. ​​chute; 30. slider; 31. water supply pipe; 32. valve; 33. liquid level meter. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] like Figure 1-3 As shown, the utility model provides a technical solution: a slag ditch mouth of an ironmaking plant with anti-blocking, comprising a bottom plate 1, a furnace 2 is arranged on the top of the bottom plate 1, a lower slag ditch 3 is fixedly installed at the bottom right side of the furnace 2, a vertical plate 4 located on the right side of the furnace 2 is fixedly installed on the top of the bottom plate 1, a first rotating seat 5 is fixedly installed on the top of the vertical plate 4, a first rotating shaft 6 is rotatably installed on the first rotating seat 5, a first rotating block 7 is fixedly sleeved on the first rotating shaft 6, a slag flushing ditch mouth 8 located below the lower slag ditch 3 is fixedly installed on the first rotating block 7, the right side of the slag flushing ditch mouth 8 is an open structure, a dredging mechanism for preventing blockage is arranged on the slag flushing ditch mouth 8, a slag flushing mechanism for impacting the slag and an adjusting mechanism for adjusting the inclination angle of the slag flushing ditch mouth 8 are arranged on the bottom plate 1.

[0026] In this embodiment, the above-mentioned slag flushing mechanism includes a water pump 15, a water tank 16, a water suction pipe 17, a drain pipe 18, a cross-tube 20, a first nozzle 21, a first hose 22, two second nozzles 23 and two second hoses 24. The water pump 15 and the water tank 16 are fixedly installed on the top of the bottom plate 1 and are located below the slag flushing groove mouth 8. The water pump 15 is located on the left side of the water tank 16. The water suction pipe 17 is fixedly installed at the input end of the water pump 15. The end of the water suction pipe 17 away from the water pump 15 extends into the water tank 16. The drain pipe 18 is fixedly installed at the output end of the water pump 15. A through hole 19 is opened at the bottom of the vertical plate 4. The drain pipe 18 is located in the through hole 19. The cross-tube 20 is fixedly installed at the end of the drain pipe 18 away from the water pump 15. The first nozzle 21, the first hose 22, the two second nozzles 23 and the two second hoses 24. The head 21 is fixedly installed on the top left side of the slag flushing ditch mouth 8 and is located below the lower slag ditch 3. The first hose 22 is fixedly installed on the first nozzle 21. The end of the first hose 22 away from the first nozzle 21 is fixedly connected to a connecting end of the four-way pipe 20. The two second nozzles 23 are respectively fixedly installed on the front and rear inner walls of the slag flushing ditch mouth 8 and are obliquely symmetrically distributed. The two second hoses 24 are respectively fixedly installed on the two second nozzles 23. The ends of the two second hoses 24 away from the corresponding second nozzles 23 are respectively fixedly connected to the two connecting ends of the four-way pipe 20. A water supply pipe 31 is fixedly installed on the top of the water tank 16, and a valve 32 is fixedly installed on the water supply pipe 31. A liquid level meter 33 is fixedly installed on the front side of the water tank 16.

[0027] In this embodiment, the above-mentioned dredging mechanism includes two support plates 9, a connecting shaft 10, a roller 11, a plurality of scraper plates 12, a mounting plate 13 and a motor 14. The two support plates 9 are respectively fixedly mounted on the front and rear sides of the slag ditch mouth 8, the connecting shaft 10 is rotatably mounted on the two support plates 9, the roller 11 is fixedly sleeved on the connecting shaft 10, and the plurality of scraper plates 12 are fixedly mounted on the roller 11 and are evenly distributed. The roller 11 and the plurality of scraper plates 12 are both made of high temperature resistant materials, and the bottom of the corresponding scraper plates 12 is in sliding contact with the inner wall of the slag ditch mouth 8. The mounting plate 13 is fixedly mounted on the front side of the front support plate 9, and the motor 14 is fixedly mounted on the top of the mounting plate 13. The output shaft end of the motor 14 is fixedly connected to the front end of the connecting shaft 10. The motor 14 can control the connecting shaft 10 to rotate, thereby driving the plurality of scraper plates 12 to clean the inner wall of the slag ditch mouth 8 in turn, effectively preventing slag from accumulating and clogging the slag ditch mouth 8.

[0028] In this embodiment, the above-mentioned adjustment mechanism includes a hydraulic cylinder 25, a second rotating seat 26, a second rotating shaft 27 and a second rotating block 28. The hydraulic cylinder 25 is slidably installed on the top of the base plate 1 and positioned on the right side of the water tank 16. The second rotating seat 26 is fixedly installed on the output shaft end of the hydraulic cylinder 25. The second rotating shaft 27 is rotatably installed on the second rotating seat 26. The second rotating block 28 is fixedly installed at the bottom of the slag flushing ditch mouth 8. The second rotating block 28 is rotatably connected to the second rotating shaft 27. A slide groove 29 located on the right side of the water tank 16 is opened on the top of the base plate 1. A slider 30 is slidably installed in the slide groove 29, and the top of the slider 30 is fixedly connected to the hydraulic cylinder 25.

[0029] In this embodiment, a control switch is installed at a suitable position on the vertical plate 4 or beside the vertical plate 4. The motor 14, the water pump 15, the hydraulic cylinder 25 and the control switch are electrically connected to the external power line through wires in sequence to form a loop. The control switch can control the start and stop of the motor 14, the water pump 15 and the hydraulic cylinder 25 respectively.

[0030] Through the above-mentioned structure, the utility model provides an anti-blocking slag ditch mouth of an ironmaking plant. It can use the first nozzle 21 and the two second nozzles 23 to impact the pouring molten slag, effectively pushing the molten slag to slide to the lower right, and use multiple slag scraping plates 12 to scrape the slag accumulated on the slag ditch mouth 8, pushing the slag to slide to the lower right, effectively preventing the slag from blocking the slag ditch mouth 8, and can also adjust the inclination angle of the slag ditch mouth 8 as needed to make it easier for the slag to slide out of the slag ditch mouth 8, thereby improving the dredging efficiency. When used specifically, the slag in the furnace 2 is poured into the slag ditch mouth 8 through the lower slag ditch 3, and the water pump 15 and the motor 14 are controlled to operate. The water pump 15 draws water from the water tank 16 and pressurizes it into the first nozzle 21 and the two second nozzles 23. The first nozzle 21 impacts the falling molten slag. The slag is impacted, and the slag falls into the slag flushing groove mouth 8 and slides to the lower right. Under the impact of the two second nozzles 23, the sliding speed is further accelerated to reduce the probability of slag precipitation. The motor 14 drives the connecting shaft 10 to rotate, thereby driving the multiple slag scraping plates 12 to rotate, and then scrapes and pushes the slag in the slag flushing groove mouth 8 to accelerate the sliding of the slag. When the sliding speed of the slag in the slag flushing groove mouth 8 is still slow and there is a tendency of siltation and blockage, the hydraulic cylinder 25 is controlled to contract, and the hydraulic cylinder 25 drives the right end of the slag flushing groove mouth 8 to move downward, so that the inclination angle of the slag flushing groove mouth 8 is increased, and the sliding speed of the slag is further increased to avoid the slag blocking the slag flushing groove mouth 8. When it is found through the liquid level meter 33 that there is not much water in the water tank 16, the valve 32 can be opened to replenish water into the water tank 16 through the water replenishment pipe 31.

[0031] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope recorded in the utility model, which should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. An anti-blocking slag ditch mouth of an ironmaking plant, characterized by: The invention comprises a bottom plate (1), a furnace (2) is arranged on the top of the bottom plate (1), a lower slag ditch (3) is fixedly installed on the right bottom of the furnace (2), a vertical plate (4) located on the right side of the furnace (2) is fixedly installed on the top of the bottom plate (1), a first rotating seat (5) is fixedly installed on the top of the vertical plate (4), a first rotating shaft (6) is rotatably installed on the first rotating seat (5), a first rotating block (7) is fixedly sleeved on the first rotating shaft (6), a slag flushing ditch mouth (8) located below the lower slag ditch (3) is fixedly installed on the first rotating block (7), the right side of the slag flushing ditch mouth (8) is an open structure, a dredging mechanism for preventing blockage is arranged on the slag flushing ditch mouth (8), and a slag flushing mechanism for impacting slag and an adjusting mechanism for adjusting the inclination angle of the slag flushing ditch mouth (8) are arranged on the bottom plate (1).

2. The anti-blocking slag ditch mouth of an ironmaking plant according to claim 1, characterized in that: The dredging mechanism comprises two support plates (9), a connecting shaft (10), a roller (11), a plurality of scraper plates (12), a mounting plate (13) and a motor (14); the two support plates (9) are respectively fixedly mounted on the front and rear sides of the slag flushing groove mouth (8); the connecting shaft (10) is rotatably mounted on the two support plates (9); the roller (11) is fixedly sleeved on the connecting shaft (10); the plurality of scraper plates (12) are all fixedly mounted on the roller (11) and are evenly distributed; the bottom of the corresponding scraper plates (12) is in sliding contact with the inner wall of the slag flushing groove mouth (8); the mounting plate (13) is fixedly mounted on the front side of the front support plate (9); the motor (14) is fixedly mounted on the top of the mounting plate (13); and the output shaft end of the motor (14) is fixedly connected to the front end of the connecting shaft (10).

3. The anti-blocking slag ditch mouth of an ironmaking plant according to claim 1, characterized in that: The slag flushing mechanism comprises a water pump (15), a water tank (16), a water suction pipe (17), a drainage pipe (18), a four-way pipe (20), a first nozzle (21), a first hose (22), two second nozzles (23) and two second hoses (24). The water pump (15) and the water tank (16) are both fixedly mounted on the top of the bottom plate (1) and located below the slag flushing groove mouth (8). The water pump (15) is located on the left side of the water tank (16). The water suction pipe (17) is fixedly mounted on the input end of the water pump (15). One end of the water suction pipe (17) away from the water pump (15) extends into the water tank (16). The drainage pipe (18) is fixedly mounted on the output end of the water pump (15). A through hole (19) is provided at the bottom of the vertical plate (4). The drainage pipe (18) is located in the through hole (19). The four-way pipe (20) is fixedly mounted on one end of the drainage pipe (18) away from the water pump (15); the first nozzle (21) is fixedly mounted on the top left side of the slag flushing ditch mouth (8) and is located below the lower slag ditch (3); the first hose (22) is fixedly mounted on the first nozzle (21); one end of the first hose (22) away from the first nozzle (21) is fixedly connected to a connecting end of the four-way pipe (20); two second nozzles (23) are respectively fixedly mounted on the inner walls of the front and rear sides of the slag flushing ditch mouth (8) and are obliquely symmetrically distributed; two second hoses (24) are respectively fixedly mounted on the two second nozzles (23); one end of the two second hoses (24) away from the corresponding second nozzles (23) is respectively fixedly connected to the two connecting ends of the four-way pipe (20).

4. The anti-blocking slag ditch mouth of an ironmaking plant according to claim 3, characterized in that: The adjusting mechanism comprises a hydraulic cylinder (25), a second rotating seat (26), a second rotating shaft (27) and a second rotating block (28); the hydraulic cylinder (25) is slidably mounted on the top of the base plate (1) and positioned on the right side of the water tank (16); the second rotating seat (26) is fixedly mounted on the output shaft end of the hydraulic cylinder (25); the second rotating shaft (27) is rotatably mounted on the second rotating seat (26); the second rotating block (28) is fixedly mounted on the bottom of the slag flushing groove mouth (8); and the second rotating block (28) is rotatably connected to the second rotating shaft (27).

5. The anti-blocking slag ditch mouth of an ironmaking plant according to claim 4, characterized in that: The top of the bottom plate (1) is provided with a slide groove (29) located on the right side of the water tank (16), a sliding block (30) is slidably installed in the slide groove (29), and the top of the sliding block (30) is fixedly connected to the hydraulic cylinder (25).

6. The anti-blocking slag ditch mouth of an ironmaking plant according to claim 5, characterized in that: A water supply pipe (31) is fixedly mounted on the top of the water tank (16), a valve (32) is fixedly mounted on the water supply pipe (31), and a liquid level meter (33) is fixedly mounted on the front side of the water tank (16).

7. The anti-blocking slag ditch mouth of an ironmaking plant according to claim 2, characterized in that: The roller (11) and the plurality of scraper plates (12) are both made of high temperature resistant materials.

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