Smelting blast furnace slag discharging device

Abstract

The utility model discloses a smelting blast furnace slag discharging device which comprises a hearth, a fixing frame is movably connected to one side of the hearth, a lifting rod is slidably connected to one side of the fixing frame, a connecting plate is fixedly connected to the side, away from the fixing frame, of the lifting rod, and a fixing rod is fixedly connected to the side, away from the lifting rod, of the connecting plate. Sliding grooves are formed in the opposite sides of the two fixing rods correspondingly, sliding blocks are slidably connected into the sliding grooves, a fixing plate is fixedly connected between the two sliding blocks jointly, a scraping plate is fixedly connected to the lower end face of the fixing plate, the two fixing rods and the scraping plate are driven to ascend and descend through ascending and descending of the lifting rods, and the distance between the scraping plate and a metal solution is controlled. And two positive and negative motors are matched to rotate in opposite directions at the same time, so that a rotating shaft drives a screw rod to rotate, the screw rod is in threaded connection with a flower opening, a sliding block slides in a sliding groove, a scraping plate on the lower end face of a fixing plate is driven to move rapidly, and slag on the upper surface of the hearth is rapidly removed and discharged.

Description

Technical Field

[0001] This utility model relates to the technical field of slag discharge devices, specifically a blast furnace slag discharge device. Background Technology

[0002] Smelting slag is a type of slag produced during metal smelting. It is a complex mixture formed by the melting of gangue (useless solid substances associated with useful minerals in the ore, mainly composed of silicon dioxide, alumina, etc.), flux (substances added to help the gangue form slag with a lower melting point, such as limestone), impurities oxidized during the smelting process, and some furnace lining materials at high temperatures, existing in layers with the molten metal.

[0003] In existing blast furnaces, the molten metal produced during smelting tends to be transported into the hearth, while slag floats on the surface of the molten metal. To ensure the cleanliness of the molten metal, the floating slag usually needs to be removed. However, in practice, the molten metal is manually removed by workers standing near the hearth using handheld slag removal equipment. This is not only slow, but also requires workers to endure high temperatures, causing discomfort. Furthermore, the high temperature of the molten metal during slag removal poses a threat to the personal safety of the workers, resulting in poor performance in actual use. Utility Model Content

[0004] To address the above problems, the purpose of this utility model is to provide a blast furnace slag discharge device, which solves the problems of the need for manual operation during slag discharge, the high temperature of the molten metal posing a threat to the personal safety of the workers, the slow efficiency of manual slag discharge, and the need for workers to endure high temperatures, causing physical discomfort.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a blast furnace slag discharge device, comprising a furnace hearth, a fixed frame movably connected to one side of the furnace hearth, a lifting rod slidably connected to one side of the fixed frame, a connecting plate fixedly connected to the side of the lifting rod away from the fixed frame, a fixed rod fixedly connected to the side of the connecting plate away from the lifting rod, a sliding groove provided on the opposite side of the two fixed rods, a slider slidably connected in the sliding groove, a fixed plate fixedly connected between the two sliders, a scraping plate fixedly connected to the lower end face of the fixed plate, a forward and reverse motor fixedly connected to the upper end face of the connecting plate, a rotating shaft connected to the output end of the forward and reverse motor, the rotating shaft rotatably connected to the fixed rod, a helical rod fixedly connected to the end of the rotating shaft away from the forward and reverse motor, the helical rod fixedly connected to the slider, and a slag discharge port provided on the side of the furnace hearth adjacent to the fixed frame.

[0006] The beneficial effects of this utility model are as follows: by raising and lowering the lifting rod, two fixed rods and scraping plates are raised and lowered, the distance between the scraping plates and the molten metal is controlled, and two positive and negative motors rotate in opposite directions at the same time, so that the rotating shaft drives the spiral rod to rotate, so that the spiral rod is screwed to the opening, and the slider slides in the slide groove, thereby moving the scraping plate on the lower end of the fixed plate quickly, and quickly removing and discharging the slag on the upper surface of the furnace hearth.

[0007] In order to allow for flexible adjustment of the operating height of the lifting rod and scraper;

[0008] As a further improvement to the above technical solution: a stabilizing plate is fixedly connected to the side of the fixed frame that contacts the lifting rod, and two symmetrical electric telescopic columns are fixedly connected to the lower end face of the stabilizing plate, and the electric telescopic columns are fixedly connected to the lifting rod;

[0009] The beneficial effects of this improvement are as follows: by using a stabilizing plate, the two electric telescopic columns can be fixed, and in conjunction with the extension and retraction of the electric telescopic columns, the lifting rod can be flexibly raised and lowered, thereby controlling the raising and lowering of the scraping plate.

[0010] In order to fix the fixing rod and ensure its stability;

[0011] As a further improvement to the above technical solution: a first support frame is fixedly connected to the lower end face of the lifting rod, the first support frame is fixedly connected to the fixed rod, and two symmetrical second support frames are fixedly connected to the upper end face of the lifting rod, the second support frames are fixedly connected to the fixed rod;

[0012] The beneficial effects of this improvement are as follows: by using the first support frame and the second support frame, the fixed rod can be fixed, the structural strength of the fixed rod can be improved, the fixed rod can be prevented from tilting and swaying during use, and the stability of the fixed rod can be improved.

[0013] In order to guide the lifting rod;

[0014] As a further improvement to the above technical solution: two symmetrical guide grooves are provided on the side of the lifting rod that contacts the fixed frame, and guide blocks are slidably connected in the guide grooves. The guide blocks are fixedly connected to the lifting rod and the first support frame.

[0015] The beneficial effects of this improvement are: by using guide grooves and guide blocks, the lifting rod can be guided, ensuring that the lifting rod always maintains a vertical up-and-down movement trajectory during the lifting process, thus ensuring sufficient stability of the lifting rod.

[0016] In order to collect slag;

[0017] As a further improvement to the above technical solution: a collection box is movably connected to the upper end face of the fixing plate, and a limiting angle strip is fixedly connected to the upper end face of the fixing frame, and the limiting angle strip is movably connected to the collection box;

[0018] The beneficial effects of this improvement are as follows: the use of the collection box allows for centralized collection of slag, facilitating subsequent centralized processing; and the use of the limiting angle strip allows for limiting the position of the collection box, ensuring accurate connection between the collection box and the slag discharge port, thus facilitating slag collection.

[0019] In order to achieve the feeding and collection of slag;

[0020] As a further improvement to the above technical solution: a guide plate is provided at the slag discharge port, and the guide plate is fixedly connected to the furnace hearth;

[0021] The beneficial effects of this improvement are: by using the guide plate, the slag can be guided and discharged, and the removed slag can be quickly transported to the collection box, which facilitates the effective collection of slag.

[0022] In order to secure the mounting bracket and ensure its sufficient stability;

[0023] As a further improvement to the above technical solution: positioning blocks are fixedly connected to both sides of the fixing frame, and two symmetrical positioning holes are opened on the positioning blocks;

[0024] The beneficial effects of this improvement are: by using positioning blocks and positioning holes, the fixing frame can be fixed, ensuring that the fixing frame remains sufficiently stable during use and will not tilt or shake.

[0025] The parts of the device not covered herein are the same as or can be implemented using existing technologies. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the isometric structure provided by this utility model;

[0027] Figure 2 Rear view provided for this utility model;

[0028] Figure 3 Provided by this utility model Figure 2 A three-dimensional cross-sectional view at point AA;

[0029] Figure 4 Provided by this utility model Figure 3 Enlarged view of point A in the middle;

[0030] Figure 5 Front view provided for this utility model;

[0031] Figure 6 Provided by this utility model Figure 5 3D cross-sectional view at point BB.

[0032] In the diagram, 1. Furnace hearth; 11. Fixing frame; 12. Lifting rod; 13. Connecting plate; 14. Fixing rod; 15. Slide groove; 16. Sliding block; 17. Fixing plate; 18. Scraper plate; 19. Forward and reverse motor; 20. Rotating shaft; 21. Screw rod; 22. Slag discharge port; 31. Stabilizing plate; 32. Electric telescopic column; 41. First support frame; 42. Second support frame; 51. Guide groove; 52. Guide block; 61. Collection box; 62. Limiting angle strip; 71. Material guide plate; 81. Positioning block; 82. Positioning hole. Detailed Implementation

[0033] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be described in detail below with reference to the accompanying drawings. The description in this part is only exemplary and explanatory, and should not be used to limit the scope of protection of this utility model in any way.

[0034] like Figures 1 to 6As shown in the figure, the blast furnace slag discharge device provided by this utility model includes a furnace hearth 1. A fixed frame 11 is movably connected to one side of the furnace hearth 1. A lifting rod 12 is slidably connected to one side of the fixed frame 11. A connecting plate 13 is fixedly connected to the side of the lifting rod 12 away from the fixed frame 11. A fixed rod 14 is fixedly connected to the side of the connecting plate 13 away from the lifting rod 12. A sliding groove 15 is provided on the opposite side of the two fixed rods 14. A slider 16 is slidably connected in the sliding groove 15. A fixed plate 17 is fixedly connected between the two sliders 16. A scraping plate 18 is fixedly connected to the lower end face of the fixed plate 17. A forward and reverse motor 19 is fixedly connected to the upper end face of the connecting plate 13. A rotating shaft 20 is connected to the output end of the forward and reverse motor 19. The rotating shaft 20 is rotatably connected to the fixed rod 14. A screw rod 21 is fixedly connected to the end of the shaft 20 away from the positive and negative motors 19. The screw rod 21 is fixedly connected to the slider 16. A slag discharge port 22 is opened on the side of the furnace hearth 1 adjacent to the fixed frame 11. By rotating the two positive and negative motors 19 in opposite directions at the same time, the two rotating shafts 20 drive their respective corresponding screw rods 21 to rotate, so that the screw rods 21 are screwed to the sliders 16. This causes the two sliders 16 to move rapidly with the scraping plate 18 on the lower end face of the fixed plate 17 to quickly discharge the slag on the surface of the molten metal. A stabilizing plate 31 is fixedly connected to the side of the fixed frame 11 that contacts the lifting rod 12. Two symmetrical electric telescopic columns 32 are fixedly connected to the lower end face of the stabilizing plate 31. The electric telescopic columns 32 are fixedly connected to the lifting rod 12. The stabilizing plate 31 can fix the two electric telescopic columns 32, ensuring sufficient stability of the electric telescopic columns 32. Through the extension and retraction of the electric telescopic columns 32, the lifting rod 12 can be flexibly raised and lowered, facilitating the height adjustment and movement of the scraping plate 18. A first support frame 41 is fixedly connected to the lower end of the lifting rod 12, and the first support frame 41 is fixedly connected to the fixed rod 14. Two symmetrical second support frames 42 are fixedly connected to the upper end of the lifting rod 12, and the second support frames 42 are fixedly connected to the fixed rod 14. The use of the two first support frames 41 and the two second support frames 42 can support the fixed rod 14, improve the structural strength of the fixed rod 14, and ensure the stability of the fixed rod 14. The lifting rod 12 and the fixed frame 11... Two symmetrical guide grooves 51 are provided on the contact side. Guide blocks 52 are slidably connected within the guide grooves 51. The guide blocks 52 are fixedly connected to the lifting rod and the first support frame 41. The use of the two guide grooves 51 and the two guide blocks 52 can guide the lifting rod 12, ensuring that the lifting rod 12, along with the two fixed rods 14, moves vertically up and down without tilting or swaying. A collection box 61 is movably connected to the upper end face of the fixed plate 17. A limiting angle strip 62 is fixedly connected to the upper end face of the fixed frame 11. The limiting angle strip 62 is movably connected to the collection box 61. The use of the collection box 61 can collect slag centrally, and the use of the limiting angle strip 62 can limit the position of the collection box 61, ensuring the accurate positioning of the collection box 61.A guide plate 71 is provided at the slag discharge port 22. The guide plate 71 is fixedly connected to the hearth 1. The guide plate 71 guides the discharged slag, ensuring that it is all collected in the collection box 61 for subsequent unified processing. Positioning blocks 81 are fixedly connected to both sides of the fixing frame 11. Each positioning block 81 has two symmetrical positioning holes 82. The fixing frame 11 is secured by the two positioning blocks 81 and their corresponding positioning holes 82, ensuring sufficient stability during use and preventing tilting or shaking.

[0035] The working principle and usage process of this utility model are as follows: During use, one side of the fixing frame 11 contacts the furnace hearth 1. Using the positioning holes 82 on the two positioning blocks 81, the fixing frame 11 is secured. When the molten metal is delivered into the furnace hearth 1, the slag floats on the surface of the molten metal. The retraction of the two electric telescopic columns 32 causes the lifting rod 12 to move upwards, carrying the two fixing rods 14. Simultaneously, the two forward and reverse motors 19 rotate in opposite directions, causing the two rotating shafts 20 to rotate, carrying their respective corresponding screw rods 21. The slider 16 moves the scraper 18 on the lower end of the fixed plate 17 toward the furnace hearth 1. When the scraper 18 moves to the farthest side of the furnace hearth 1, two electric telescopic columns 32 extend and lower the lifting rod 12 and the scraper 18. In conjunction with the reverse rotation of the two forward and reverse motors 19, the scraper 18 quickly scrapes and discharges the slag on the surface of the molten metal. The slag is then transported through the slag discharge port 22 and the guide plate 71 into the collection box 61 for centralized collection and treatment. This completes the entire slag discharge device usage process.

[0036] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0037] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A blast furnace slag discharge device, comprising a hearth (1), characterized in that: A fixed frame (11) is movably connected to one side of the furnace cylinder (1), and a lifting rod (12) is slidably connected to one side of the fixed frame (11). A connecting plate (13) is fixedly connected to the side of the lifting rod (12) away from the fixed frame (11), and a fixed rod (14) is fixedly connected to the side of the connecting plate (13) away from the lifting rod (12). Sliding grooves (15) are provided on the opposite sides of the two fixed rods (14). A slider (16) is slidably connected in the chute (15). A fixing plate (17) is fixedly connected between the two sliders (16). A scraper (18) is fixedly connected to the lower end face of the fixing plate (17). A forward and reverse motor (19) is fixedly connected to the upper end face of the connecting plate (13). A rotating shaft (20) is connected to the output end of the forward and reverse motor (19). The rotating shaft (20) is rotatably connected to the fixing rod (14). A screw rod (21) is fixedly connected to the end of the rotating shaft (20) away from the forward and reverse motor (19). The screw rod (21) is fixedly connected to the slider (16). A slag discharge port (22) is opened on the side of the furnace (1) adjacent to the fixing frame (11).

2. The blast furnace slag discharge device according to claim 1, characterized in that: A stabilizing plate (31) is fixedly connected to the side of the fixed frame (11) that contacts the lifting rod (12). Two symmetrical electric telescopic columns (32) are fixedly connected to the lower end face of the stabilizing plate (31). The electric telescopic columns (32) are fixedly connected to the lifting rod (12).

3. The blast furnace slag discharge device according to claim 1, characterized in that: The lower end face of the lifting rod (12) is fixedly connected to a first support frame (41), the first support frame (41) is fixedly connected to the fixed rod (14), and the upper end face of the lifting rod (12) is fixedly connected to two symmetrical second support frames (42), the second support frames (42) are fixedly connected to the fixed rod (14).

4. A blast furnace slag discharge device according to claim 3, characterized in that: Two symmetrical guide grooves (51) are provided on the side of the lifting rod (12) that contacts the fixed frame (11). A guide block (52) is slidably connected in the guide groove (51). The guide block (52) is fixedly connected to the lifting rod (12) and the first support frame (41).

5. A blast furnace slag discharge device according to claim 1, characterized in that: The upper end face of the fixed plate (17) is movably connected to the collection box (61), and the upper end face of the fixed frame (11) is fixedly connected to the limiting angle strip (62), which is movably connected to the collection box (61).

6. A blast furnace slag discharge device according to claim 1, characterized in that: A guide plate (71) is provided at the slag discharge port (22), and the guide plate (71) is fixedly connected to the furnace hearth (1).

7. A blast furnace slag discharge device according to claim 1, characterized in that: The fixing frame (11) has a positioning block (81) fixedly connected to both sides, and the positioning block (81) has two symmetrical positioning holes (82).

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