Iron removal device for blast furnace slag treatment

Abstract

The utility model discloses an iron removal device for blast furnace slag treatment, which comprises a rack, a conveyor is mounted on the rack, a belt type iron removal machine is mounted on the rack, a plurality of T-shaped scrapers are mounted on the belt type iron removal machine, the T-shaped scrapers are distributed at intervals in a staggered manner, and the T-shaped scrapers are in contact fit with the upper surface of the conveyor. And two overturning discs are connected to the rack in a sliding manner. Through cooperative arrangement of the overturning rod and the air outlet pipe, the air outlet pipe blows out hot air to dry iron powder within the adsorption range of the belt type iron removal machine, the iron powder adsorbed on the belt type iron removal machine can drive the overturning rod to move through the overturning disc, meanwhile, the overturning rod rotates, the adsorbed iron powder layer is overturned, and the iron powder layer is dried. The drying effect is further improved; through the arrangement of the T-shaped scraping plate, a thick slag powder layer formed by slag powder conveyed on the conveyor can be scraped and stirred, and therefore the belt type iron removal machine can conveniently adsorb iron powder in the slag powder.

Description

Technical Field

[0001] The utility model relates to the technical field of iron removal from blast furnace slag, in particular to an iron removal device for blast furnace slag treatment. Background Art

[0002] At present, the main source of slag is the molten material with silicates and aluminosilicates as the main components generated during the blast furnace ironmaking process of steel mills, which floats on the surface of the molten iron and is regularly discharged from the slag discharge port. It is rapidly cooled by air or water to form granular particles, so it is also called granulated blast furnace slag.

[0003] After being ground into ultra-fine slag powder, slag has potential hydraulic hardness and strong concrete activity, and is a high-quality admixture for cement and concrete. With the development of grinding technology and premixed concrete, the application of ultra-fine slag powder has become more extensive, so slag grinding has great economic and social value. After the slag is ground into slag powder, it will still contain a certain amount of iron powder, which will affect the overall activity of the slag powder.

[0004] In the belt-type slag powder processing and iron removal device in the prior art, due to the high water absorption of the powder, the iron powder adsorbed by the magnet is easily adhered to the belt surface, thereby affecting the subsequent iron removal work. In addition, because the slag powder has a certain thickness when being transported for iron removal, the iron removal effect is not good. Utility Model Content

[0005] Based on this, it is necessary to provide an iron removal device for blast furnace slag treatment to address the above technical problems.

[0006] In order to achieve the above-mentioned purpose, the utility model provides an iron removal device for blast furnace slag treatment, comprising a frame, a conveyor is installed on the frame, a belt-type iron remover is installed on the frame, a plurality of T-shaped scrapers are installed on the belt-type iron remover, the T-shaped scrapers are distributed in an interlaced manner, the T-shaped scrapers are in contact with the upper surface of the conveyor, two turning plates are slidably connected to the frame, four evenly distributed rotating shafts are rotatably connected to the bottom of the turning plate, a turning rod is installed at the bottom of the rotating shaft, the length of the turning rod is less than the distance between the two T-shaped scrapers and the connection between the belt-type iron remover, and the turning rod is in contact with the belt-type iron remover. The upper surface is in contact with each other, and a first rotating drive device is installed on the flip disk. The output end of the first rotating drive device is connected to one of the rotating shafts, and the rotating shafts are connected to each other through a belt transmission assembly. A threaded rod is rotatably connected to the frame, and the two flip disks are connected through a connecting block. The threaded rod is threadedly connected to the connecting block. An air outlet pipe is installed above the end of the magnetic suction range on the upper surface of the belt-type iron remover, a hot air box is installed on the frame, and the input end of the air outlet pipe is connected to the hot air box. A second rotating drive device is installed on the frame, and the output end of the second rotating drive device is connected to the threaded rod.

[0007] Preferably, the belt-type iron remover includes a driving shaft and a strong magnetic roller. The driving shaft is transmission-connected to a conveyor belt, which is slidingly connected to the strong magnetic roller. Permanent magnet block 1 and permanent magnet block 2 are installed on the frame. Permanent magnet block 1 and permanent magnet block 2 are installed on the inner side of the conveyor belt and are in contact with the inner surface of the conveyor belt. A third rotating drive device is installed on the frame, and the output end of the third rotating drive device is transmission-connected to the driving shaft. The air outlet duct is located above the permanent magnet block 1 near one end of the driving shaft.

[0008] Preferably, the T-shaped scraper is provided with a chamfer.

[0009] Preferably, a slide bar is installed on the frame, and the flip plate is slidably connected to the slide bar.

[0010] Preferably, an electric heating plate is installed between the permanent magnet block 1 and the inner surface of the conveyor belt.

[0011] Preferably, there may be two rotation axes symmetrically arranged.

[0012] Compared with the prior art, this technical solution has at least one of the following beneficial effects:

[0013] Through the coordinated arrangement of the flip rod and the air outlet pipe, hot air is blown out from the air outlet pipe within the adsorption range of the belt-type iron remover to dry the iron powder, and the iron powder adsorbed on the belt-type iron remover can be driven by the flip plate to move the flip rod while the flip rod itself rotates to flip the adsorbed iron powder layer, further improving the drying effect;

[0014] By setting the T-shaped scraper, the thick slag powder layer formed by the slag powder transported on the conveyor can be scraped and stirred, so that the belt-type iron remover can absorb the iron powder in the slag powder. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is an internal stereogram of an embodiment of the utility model;

[0016] Figure 2 For an embodiment of the utility model Figure 1 Enlarged view of point A in the middle;

[0017] Figure 3 It is a front cross-sectional view of an embodiment of the utility model;

[0018] Figure 4 A trajectory diagram of the relative movement of the rotating shaft and the belt-type iron remover of one embodiment of the utility model (top view and cross-section view);

[0019] Figure 5 A three-dimensional diagram of an embodiment of the utility model;

[0020] In the figure, 1, frame; 2, conveyor; 3, belt-type iron remover; 4, T-shaped scraper; 5, flip plate; 6, rotating shaft; 7, flip rod; 8, first rotation drive device; 9, threaded rod; 10, connecting block; 11, air outlet pipe; 12, hot air box; 13, second rotation drive device; 14, sliding rod; 15, electric heating plate; 301, driving shaft; 302, strong magnetic roller; 303, conveyor belt; 304, permanent magnet block 1; 305, permanent magnet block 2; 306, third rotation drive device. DETAILED DESCRIPTION

[0021] In order to make the above-mentioned purposes, features and advantages of the utility model more obvious and easy to understand, the specific implementation methods of the utility model are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the utility model. However, the utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the utility model, so the utility model is not limited by the specific embodiments disclosed below.

[0022] See also Figures 1 to 5 The embodiment of the present application provides an iron removal device for blast furnace slag treatment, including a frame 1, a conveyor 2 is installed on the frame 1, and the conveyor 2 can be a belt conveyor in the prior art. A belt iron remover 3 is installed on the frame 1, and the belt iron remover 3 is a suspended belt iron remover equipped with a servo motor in the prior art. A plurality of T-shaped scrapers 4 are installed on the belt iron remover 3, and the T-shaped scrapers 4 are staggered and distributed at intervals. The T-shaped scrapers 4 are in contact with the upper surface of the conveyor 2. Two flip disks 5 are slidably connected to the frame 1, and four evenly distributed rotating shafts 6 are rotatably connected to the bottom of the flip disk 5. A flip rod 7 is installed at the bottom of the rotating shaft 6, and the length of the flip rod 7 is less than the distance between the two T-shaped scrapers 4 and the connection between the belt iron remover 3, and the flip rod 7 is in contact with the upper surface of the belt iron remover 3. 5 is installed with a first rotating drive device 8, the first rotating drive device 8 can be a motor, the output end of the first rotating drive device 8 is connected to one of the rotating shafts 6, and the rotating shafts 6 are connected to each other through a belt transmission assembly. A threaded rod 9 is rotatably connected to the frame 1, and the two flip disks 5 are connected through a connecting block 10, and the threaded rod 9 is threadedly connected to the connecting block 10. An air outlet pipe 11 is installed above the end of the magnetic suction range on the upper surface of the belt-type iron remover 3, a hot air box 12 is installed on the frame 1, and the input end of the air outlet pipe 11 is connected to the hot air box 12, and the hot air box 12 can be an electric blast drying box in the prior art. A second rotating drive device 13 is installed on the frame 1, and the second rotating drive device 13 can be a servo motor. The output end of the second rotating drive device 13 is connected to the threaded rod 9.

[0023] In this embodiment, the slag powder material containing iron powder is transported by the conveyor 2, and the iron powder is adsorbed by the belt-type iron remover 3 obliquely above the conveyor 2 and transported to other places different from the output end of the conveyor 2. During operation, through the action of the T-shaped scraper 4 on the belt-type iron remover 3 rotating in the same direction as the conveyor 2, the T-shaped scraper 4 can scrape and flip the thicker slag powder layer transported on the conveyor 2, thereby improving the iron removal effect of the belt-type iron remover 3 on the slag powder; when the iron powder layer adsorbed by the belt-type iron remover 3 is transported to the upper surface of the belt-type iron remover 3, the hot air generated by the hot air box 12 is blown toward the iron powder by the air outlet pipe 11, thereby drying the iron powder; at this time, the blown iron powder is still within the adsorption range of the belt-type iron remover 3, so the iron powder will not be blown away; in order to facilitate the drying of the thicker iron powder layer on the belt-type iron remover 3 after adsorption, the threaded rod 9 is driven by the second rotary drive device 13, so that the threaded rod 9 can drive the connecting block 10 through the connecting block The two connected flip plates 5 move, and during movement, the rotating shaft 6 on the flip plate 5 is always in a slow rotation state through the drive transmission of the first rotary drive device 8, so that the iron powder layer is flipped by the flip rod 7 whose bottom of the rotating shaft 6 is in contact with the upper surface of the belt-type iron remover 3, further improving the drying effect of the iron powder blown by the air outlet 11; through the cooperation of the second rotary drive device 13 and the belt-type iron remover 3, the flip plate 5 has a W-shaped motion trajectory relative to the belt-type iron remover 3, and the flip rod 7 can just pass between the two T-shaped scrapers 4, so that most of the iron powder adsorbed on the belt-type iron remover 3 can be stirred and flipped; the contact between the flip rod 7 and the belt-type iron remover 3 causes the flip plate 5 to be driven to move by the threaded rod 9 instead of rotating with the threaded rod 9.

[0024] In some embodiments, in order to achieve the purpose that the belt-type iron remover 3 can transport the adsorbed iron powder to the air outlet 11 above it and still adsorb the iron powder, the belt-type iron remover 3 is provided to include a drive shaft 301 and a strong magnetic roller 302, the drive shaft 301 is connected to a conveyor belt 303 in a transmission manner, the conveyor belt 303 is slidably connected to the strong magnetic roller 302, the frame 1 is provided with a permanent magnet block 1 304 and a permanent magnet block 2 305, the permanent magnet block 1 304 and the permanent magnet block 2 305 are installed on the inner side of the conveyor belt 303 and are in contact with the inner surface of the conveyor belt 303, the frame 1 is provided with a third rotating drive device 306, the third rotating drive device 306 can be a servo motor, the output end of the third rotating drive device 306 is connected to the drive shaft 301 in a transmission manner, and the air outlet 11 is located above the end of the permanent magnet block 1 304 near the drive shaft 301. Thus, the second rotating drive device 13 and the third rotating drive device 306 cooperate with each other to achieve the purpose of the special moving trajectory of the flip disk 5.

[0025] In some embodiments, in order to prevent a large amount of material from piling up when the T-shaped scraper 4 pushes the slag powder material on the conveyor 2, a chamfer is provided on the T-shaped scraper 4. After the slag powder is pushed by the T-shaped scraper 4, it can pass through the chamfer and pass over the T-shaped scraper 4 to fall back onto the conveyor 2.

[0026] In some embodiments, in order to reduce the pressure of the flip rod 7 on the belt-type iron remover 3 when the flip plate 5 is driven to move, a slide bar 14 is installed on the frame 1, and the flip plate 5 is slidably connected to the slide bar 14.

[0027] In some embodiments, in order to further improve the drying effect of the iron powder, an electric heating plate 15 is installed between the permanent magnet block 304 and the inner surface of the conveyor belt 303.

[0028] In some embodiments, in order to save resources, the rotating shafts 6 can be symmetrically arranged, and can be symmetrically arranged in front, rear, left, and right, which can still achieve the purpose of scraping iron powder at most positions on the belt-type iron remover 3.

[0029] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0030] The above embodiments only express several implementation methods of the utility model, and the descriptions are relatively specific and detailed, but they cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

[0031] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0032] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0033] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

Claims

1. An iron removal device for blast furnace slag treatment, comprising a frame (1), a conveyor (2) being mounted on the frame (1), characterized in that: The frame (1) is provided with a belt-type iron remover (3), and a plurality of T-shaped scrapers (4) are provided on the belt-type iron remover (3). The T-shaped scrapers (4) are arranged in an interlaced manner, and the T-shaped scrapers (4) are in contact with the upper surface of the conveyor (2). Two flip disks (5) are slidably connected to the frame (1), and the bottom of the flip disk (5) is rotatably connected with four evenly distributed rotating shafts (6). A flip rod (7) is provided at the bottom of the rotating shaft (6), and the length of the flip rod (7) is less than the distance between the two T-shaped scrapers (4) and the connection between the belt-type iron remover (3). The flip rod (7) is in contact with the upper surface of the belt-type iron remover (3). A first rotating drive device (8) is provided on the flip disk (5). The output end of the rotary drive device (8) is connected to one of the rotating shafts (6) in a transmission connection, and the rotating shafts (6) are connected to each other in a transmission connection through a belt drive assembly. A threaded rod (9) is rotatably connected to the frame (1), and the two flip discs (5) are connected through a connecting block (10). The threaded rod (9) and the connecting block (10) are threadedly connected. An air outlet pipe (11) is installed above the end of the magnetic attraction range on the upper surface of the belt-type iron remover (3). A hot air box (12) is installed on the frame (1), and the input end of the air outlet pipe (11) is connected to the hot air box (12). A second rotary drive device (13) is installed on the frame (1), and the output end of the second rotary drive device (13) is connected to the threaded rod (9).

2. The iron removal device for blast furnace slag treatment according to claim 1, characterized in that: The belt-type iron remover (3) comprises a driving shaft (301) and a strong magnetic roller (302); the driving shaft (301) is connected to a conveyor belt (303) in a transmission manner; the conveyor belt (303) is slidably connected to the strong magnetic roller (302); a permanent magnet block 1 (304) and a permanent magnet block 2 (305) are mounted on a frame (1); the permanent magnet block 1 (304) and the permanent magnet block 2 (305) are mounted on the inner side of the conveyor belt (303) and are in contact with the inner surface of the conveyor belt (303); a third rotating drive device (306) is mounted on the frame (1); an output end of the third rotating drive device (306) is connected to the driving shaft (301) in a transmission manner; and an air outlet pipe (11) is located above one end of the permanent magnet block 1 (304) close to the driving shaft (301).

3. The iron removal device for blast furnace slag treatment according to claim 1, characterized in that: The T-shaped scraper (4) is provided with a chamfer.

4. The iron removal device for blast furnace slag treatment according to claim 1, characterized in that: A slide bar (14) is mounted on the frame (1), and the flip plate (5) is slidably connected to the slide bar (14).

5. The iron removal device for blast furnace slag treatment according to claim 2, characterized in that: An electric heating plate (15) is installed between the permanent magnet block 1 (304) and the inner surface of the conveyor belt (303).

6. The iron removal device for blast furnace slag treatment according to claim 1, characterized in that: The rotation axes (6) may be two symmetrically arranged.

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