Sintering blast furnace raw material conveying device

Abstract

The utility model discloses a sintering blast furnace raw material conveying device which comprises a rack, a transfer stock bin, a first belt conveyor, a second belt conveyor, a track beam and a track trolley, an upper guide roller, a lower guide roller and a material guide plate are installed on the track trolley, a guide sleeve is hinged to the lower end of the material guide plate, and a buffer plate is installed in the guide sleeve in a sliding mode. A power push rod is installed on the material guide plate, and a linear driving mechanism is installed on the guide sleeve. When the material level in the transfer stock bin is low, the power push rod drives the guide sleeve to rotate, the linear driving mechanism drives the buffer plate to slide downwards in the guide sleeve, the buffer plate rotates and extends into the transfer stock bin, and materials of the first belt conveyor fall to the material guide plate and the buffer plate at the position of the upper guide roller; materials fall into the transfer stock bin after being buffered by the buffer plate, the materials can be prevented from directly falling into the bottom of the transfer stock bin, material impact can be reduced, and powder generation is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of blast furnace smelting material transportation equipment, in particular to a sintering blast furnace raw material transportation device. Background Art

[0002] The main raw material for blast furnaces is sintered ore, so it is crucial to equip sintering machines to produce this raw material. However, due to the mismatch between the production rhythm of sintering machines and blast furnaces, and the variety of materials used in blast furnaces, frequent switching is required during loading, resulting in the need for intermittent supply of sintered ore to the blast furnace feed trough. At the same time, the sintered ore output of the sintering machine is continuous. To resolve this contradiction, manufacturers usually set up a transfer silo between the two.

[0003] As the scale of blast furnaces and sintering machines increases, the transfer silos are also designed to be larger and deeper. When the silos are empty, the sintered ore falls from a high place with a large drop. Due to its fragile nature, part of the sintered ore often breaks into powder and cannot be used in the blast furnace. It can only be returned to the sintering machine for re-burning. This not only wastes energy, but also generates dust during transportation and transfer, causing environmental pollution. Utility Model Content

[0004] Based on this, it is necessary to provide a sintering blast furnace raw material conveying device to address the above technical problems.

[0005] In order to achieve the above-mentioned purpose, the utility model provides a raw material conveying device for a sintering blast furnace, comprising a frame, a plurality of transfer silos fixed on the frame, a first belt conveyor located above the transfer silos, and a second belt conveyor located below the transfer silos, a track beam is fixed on the frame, a track trolley that can walk on the track beam is installed on the track beam, an upper guide roller and a lower guide roller are rotatably installed on the track trolley, the upper guide roller is located obliquely above the lower guide roller, the first belt conveyor is located on one side above the transfer silo, and the upper guide roller and the lower guide roller are both connected to the belt of the first belt conveyor The upper guide roller and the lower guide roller are connected, and the upper part of the belt of the first belt conveyor is guided in a Z shape; a material guide plate is fixedly installed on the rail trolley and on the side of the upper guide roller away from the lower guide roller, a guide sleeve is hinged at the lower end of the material guide plate, a buffer plate is slidably installed in the guide sleeve, a power push rod for driving the guide sleeve to rotate is installed on the material guide plate, a linear drive mechanism for driving the buffer plate to slide in the guide sleeve is installed on the guide sleeve, the material guide plate guides the material on the first belt conveyor to the buffer plate or the transfer silo, and the material guided to the buffer plate enters the transfer silo after being buffered by the buffer plate.

[0006] Preferably, mounting components and a power push rod are provided on both sides of the lower end of the material guide plate, and the mounting components include two first mounting plates and a first rotating shaft, the first mounting plates are fixedly connected to the material guide plates, and the first rotating shaft is rotatably installed between the two first mounting plates; a rotating arm is fixedly installed on the first rotating shaft, one end of the rotating arm is fixedly connected to the guide sleeve, and the other end of the rotating arm is hinged to the power push rod.

[0007] Preferably, the linear drive mechanism includes a drive motor, a fixed plate, a worm wheel, a worm, a rack, a gear, a second rotating shaft, and a second mounting plate. The fixed plate is fixedly connected to the guide sleeve, the drive motor is fixedly mounted on the fixed plate, the output end of the drive motor is connected to the worm through a coupling, an opening is provided at the end of the guide sleeve facing away from the drive motor, a rack fixedly connected to the buffer plate is provided in the opening, a second mounting plate is fixed on the guide sleeve and located on both sides of the opening, the second rotating shaft is rotatably mounted on the second mounting plate, the gear and the worm wheel are fixedly mounted on the second rotating shaft, the gear is meshingly connected to the rack, and the worm wheel is meshingly connected to the worm.

[0008] Preferably, baffles are fixed at both ends of the guide plate.

[0009] Preferably, the material guide plate includes an inclined section and a vertical section, the lower end of the inclined section is adjacent to the upper end of the vertical section, and the material on the first belt conveyor is guided to the buffer plate or the transfer silo through the inclined section.

[0010] Preferably, three track beams are provided on the frame, the track trolley includes three rows of track wheels corresponding to the track beams one by one, the transfer bin is located below the gap between one of the two adjacent track beams, and the first belt conveyor is located above the gap between the other two adjacent track beams.

[0011] The beneficial effects of the technical solution are as follows: when the material level in the transfer silo is low, the guide sleeve is driven to rotate by the power push rod, and the buffer plate is driven to slide downward in the guide sleeve by the linear drive mechanism, so that the buffer plate rotates and extends into the transfer silo, and the material of the first belt conveyor falls to the guide plate at the upper guide roller, and the guide plate guides the material to the buffer plate, and the material falls into the transfer silo after being buffered by the buffer plate, which can prevent the material from falling directly into the bottom of the transfer silo, reduce the impact of the material, and reduce the generation of powder; the buffer plate is driven to slide upward in the guide sleeve by the linear drive mechanism, so that the buffer plate can be easily pulled out of the transfer silo. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a working state diagram of a raw material conveying device for a sintering blast furnace according to an embodiment;

[0013] Figure 2 for Figure 1 A local enlarged schematic diagram of the middle A;

[0014] Figure 3A schematic diagram of the partial structure of a raw material conveying device for a sintering blast furnace according to an embodiment of the present invention Figure 1 (The buffer plate is in a vertical position);

[0015] Figure 4 A schematic diagram of the partial structure of a raw material conveying device for a sintering blast furnace according to an embodiment of the present invention Figure 2 (The buffer plate rises above the transfer silo);

[0016] Figure 5 A side view of a raw material conveying device for a sintering blast furnace according to an embodiment;

[0017] Figure 6 for Figure 5 A partial enlarged schematic diagram of point B in the middle;

[0018] In the figure, 1, frame; 2, transfer silo; 3, first belt conveyor; 4, second belt conveyor; 5, track beam; 6, track trolley; 7, upper guide roller; 8, lower guide roller; 9, guide plate; 10, guide sleeve; 11, buffer plate; 12, power push rod; 13, first mounting plate; 14, first rotating shaft; 15, rotating arm; 16, driving motor; 17, fixing plate; 18, worm gear; 19, worm; 20, rack; 21, gear; 22, second rotating shaft; 23, second mounting plate; 24, opening; 25, baffle; 26, inclined section; 27, vertical section; 28, track wheel. DETAILED DESCRIPTION

[0019] 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.

[0020] See also Figures 1 to 6The embodiment of the present application provides a raw material conveying device for a sintering blast furnace, comprising a frame 1, a plurality of transfer silos 2 fixed on the frame 1, a first belt conveyor 3 located above the transfer silo 2, and a second belt conveyor 4 located below the transfer silo 2. A track beam 5 is fixed on the frame 1, and a track trolley 6 that can travel on the track beam 5 is installed on the track beam 5. A motor for driving the track wheel 28 to rotate is installed on one of the track wheels 28 of the track trolley 6, so that the track trolley 6 can travel on the track beam 5. An upper guide roller 7 and a lower guide roller 8 are rotatably installed on the track trolley 6, and the upper guide roller 7 is located obliquely above the lower guide roller 8. The first belt conveyor 3 is located on one side above the transfer silo 2, and the upper guide roller 7 and the lower guide roller 8 are both connected to the belt of the first belt conveyor 3. The upper guide roller 7 and the lower guide roller 8 connect the first belt The upper guide of the belt of the conveyor 3 is in a Z shape. The movement of the rail trolley 6 drives the upper guide roller 7 and the lower guide roller 8 to move, which can change the Z-shaped position of the belt of the first belt conveyor 3, so as to facilitate the material guiding to the transfer bin 2 at different positions; a material guide plate 9 is fixedly installed on the rail trolley 6 and located on the side of the upper guide roller 7 away from the lower guide roller 8. A guide sleeve 10 is hinged at the lower end of the material guide plate 9. A buffer plate 11 is slidably installed in the guide sleeve 10. A power push rod 12 for driving the guide sleeve 10 to rotate is installed on the material guide plate 9. A linear drive mechanism for driving the buffer plate 11 to slide in the guide sleeve 10 is installed on the guide sleeve 10. The material guide plate 9 guides the material on the first belt conveyor 3 to the buffer plate 11 or the transfer bin 2. The material guided to the buffer plate 11 enters the transfer bin 2 after being buffered by the buffer plate 11.

[0021] See also Figure 1 When the material level in the transfer bin 2 is low, the guide sleeve 10 is driven to rotate by the power push rod 12, and the buffer plate 11 is driven to slide downward in the guide sleeve 10 by the linear drive mechanism, so that the buffer plate 11 rotates and extends into the transfer bin 2. The material of the first belt conveyor 3 falls to the guide plate 9 at the upper guide roller 7. The guide plate 9 guides the material to the buffer plate 11. After the material is buffered by the buffer plate 11, it falls into the transfer bin 2, which can prevent the material from falling directly into the bottom of the transfer bin 2, reduce the impact of the material, and reduce the generation of powder; the power push rod 12 drives the guide sleeve 10 and the buffer plate 11 to gradually rotate downward, thereby promoting the material on the buffer plate 11 to fall into the transfer bin 2, avoiding excessive accumulation of material on the buffer plate 11. During the process of the buffer plate 11 gradually rotating downward, the material level in the transfer bin 2 gradually increases, and the impact force of the falling material gradually decreases; please refer to Figure 3 After the buffer plate 11 rotates to a substantially vertical position, the linear drive mechanism drives the buffer plate 11 to slide upward in the guide sleeve 10. Figure 4, until it rises above the transfer silo 2; then the rail trolley 6 can move to the next silo position, and the buffer plate 11 will not interfere with the transfer silo 2; the running speed of the first belt conveyor 3 can be appropriately reduced during the movement of the rail trolley 6, so that when moving to the next transfer silo 2, the buffer plate 11 is driven to rotate by the power push rod 12 and the linear drive mechanism gradually drives the buffer plate 11 to extend. The initial velocity of the material falling from the upper guide roller 7 to the guide plate 9 is relatively low, which can easily fall on the buffer plate 11 extending toward the other end of the transfer silo 2, so that the material is buffered; after the valve at the bottom of the transfer silo 2 is opened, the material in the transfer silo 2 falls into the second belt conveyor 4, and the second belt conveyor 4 transports the material to the blast furnace.

[0022] In a preferred embodiment, in order to facilitate driving the guide sleeve 10 to rotate, please refer to Figure 2 , Figure 5 and Figure 6 , both sides of the lower end of the guide plate 9 are provided with mounting components and power push rods 12, the guide sleeve 10 is rotatably connected to the guide plate 9 through the mounting components, the mounting components include two first mounting plates 13 and a first rotating shaft 14, the first mounting plate 13 is fixedly connected to the guide plate 9, the first rotating shaft 14 is rotatably mounted between the two first mounting plates 13 through a bearing; a rotating arm 15 is fixedly mounted on the first rotating shaft 14, one end of the rotating arm 15 is fixedly connected to the guide sleeve 10, and the other end of the rotating arm 15 is hinged to the power push rod 12. The power push rod 12 uses a hydraulic cylinder, the mounting end of the power push rod 12 is hinged to the guide plate 9, and the output end of the power push rod 12 is hinged to the rotating arm 15. The two power push rods 12 work synchronously, and the two power push rods 12 are synchronously extended and retracted to drive the rotating arm 15, the first rotating shaft 14 and the guide sleeve 10 to rotate, and the guide sleeve 10 drives the buffer plate 11 to rotate, thereby adjusting the inclination angle of the buffer plate 11.

[0023] In a preferred embodiment, in order to facilitate the driving of the buffer plate 11 to move relative to the guide sleeve 10, please refer to Figure 2 and Figure 6A linear drive mechanism is provided, including a drive motor 16, a fixed plate 17, a worm wheel 18, a worm 19, a rack 20, a gear 21, a second rotating shaft 22, and a second mounting plate 23. The fixed plate 17 is fixedly connected to the guide sleeve 10, the drive motor 16 is fixedly mounted on the fixed plate 17, and the output end of the drive motor 16 is connected to the worm 19 through a coupling. An opening 24 is provided at the end of the guide sleeve 10 facing away from the drive motor 16, and a rack 20 fixedly connected to the buffer plate 11 is provided in the opening 24. A second mounting plate 23 is fixed on the guide sleeve 10 and located on both sides of the opening 24. The second rotating shaft 22 is rotatably mounted on the second mounting plate 23 through a bearing. The gear 21 and the worm wheel 18 are fixedly mounted on the second rotating shaft 22. The gear 21 is meshedly connected to the rack 20, and the worm wheel 18 is meshedly connected to the worm 19. The driving motor 16 is a stepping motor, which drives the worm 19 to rotate. The worm 19 drives the worm wheel 18 to rotate, and then drives the second rotating shaft 22 and the gear 21 to rotate. Under the guidance of the guide sleeve 10, the gear 21 drives the rack 20 and the buffer plate 11 to move, thereby facilitating the withdrawal of the buffer plate 11 from the transfer silo 2.

[0024] In a preferred embodiment, in order to prevent the material conveyed by the first belt conveyor 3 to the guide plate 9 from being separated from both sides of the guide plate 9 and unable to be accurately conveyed to the transfer silo 2, please refer to Figures 1 to 6 , baffles 25 are fixed at both ends of the guide plate 9. The baffles 25 limit the material on the guide plate 9, preventing the material on the guide plate 9 from escaping from the guide plate 9 in the left and right directions, and can only be led out from the lower end of the guide plate 9.

[0025] In a preferred embodiment, in order to facilitate the material guide plate 9 to guide the material on the first belt conveyor 3 to the buffer plate 11 or the transfer silo 2, please refer to Figure 1 and Figure 5 The guide plate 9 includes an inclined section 26 and a vertical section 27 , the lower end of the inclined section 26 is adjacent to the upper end of the vertical section 27 , and the material on the first belt conveyor 3 is guided to the buffer plate 11 or the transfer silo 2 through the inclined section 26 .

[0026] In a preferred embodiment, in order to ensure that the guide plate 9 and the buffer plate 11 can be stably supported when guiding the material, please refer to Figure 5 , three track beams 5 are arranged on the frame 1, the track trolley 6 includes three rows of track wheels 28 corresponding to the track beams 5, and the number of track wheels 28 in each row is two, the transfer silo 2 is located below the gap between one of the two adjacent track beams 5, and the first belt conveyor 3 is located above the gap between the other two adjacent track beams 5. By providing three track beams 5 and three rows of track wheels 28 corresponding to the track beams 5, the guide plate 9 and the buffer plate 11 can be stably supported, so that the track trolley 6 can move stably.

[0027] 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.

[0028] 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.

[0029] 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.

[0030] 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.

[0031] 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. A sintering blast furnace raw material conveying device, comprising a frame (1), a plurality of transfer silos (2) fixed on the frame (1), a first belt conveyor (3) located above the transfer silos (2), and a second belt conveyor (4) located below the transfer silos (2), characterized in that: The frame (1) is fixed with a track beam (5), the track beam (5) is provided with a track trolley (6) which can travel on the track beam (5), an upper guide roller (7) and a lower guide roller (8) are rotatably provided on the track trolley (6), the upper guide roller (7) is located obliquely above the lower guide roller (8), the first belt conveyor (3) is located on one side above the transfer bin (2), the upper guide roller (7) and the lower guide roller (8) are both connected to the belt of the first belt conveyor (3), and the upper guide roller (7) and the lower guide roller (8) guide the upper part of the belt of the first belt conveyor (3) in a Z shape; the track trolley (6) and the upper guide roller (8) are located on the upper guide roller ( 7) A guide plate (9) is fixedly installed on the side away from the lower guide roller (8), a guide sleeve (10) is hinged at the lower end of the guide plate (9), a buffer plate (11) is slidably installed in the guide sleeve (10), a power push rod (12) for driving the guide sleeve (10) to rotate is installed on the guide plate (9), and a linear drive mechanism for driving the buffer plate (11) to slide in the guide sleeve (10) is installed on the guide sleeve (10). The guide plate (9) guides the material on the first belt conveyor (3) to the buffer plate (11) or the transfer bin (2), and the material guided to the buffer plate (11) enters the transfer bin (2) after being buffered by the buffer plate (11).

2. The raw material conveying device for sintering blast furnace according to claim 1, characterized in that: Both sides of the lower end of the guide plate (9) are provided with mounting components and a power push rod (12), the mounting components comprising two first mounting plates (13) and a first rotating shaft (14), the first mounting plates (13) being fixedly connected to the guide plate (9), the first rotating shaft (14) being rotatably mounted between the two first mounting plates (13); a rotating arm (15) being fixedly mounted on the first rotating shaft (14), one end of the rotating arm (15) being fixedly connected to the guide sleeve (10), and the other end of the rotating arm (15) being hinged to the power push rod (12).

3. The raw material conveying device for sintering blast furnace according to claim 1, characterized in that: The linear drive mechanism comprises a drive motor (16), a fixed plate (17), a worm wheel (18), a worm (19), a rack (20), a gear (21), a second rotating shaft (22), and a second mounting plate (23); the fixed plate (17) is fixedly connected to the guide sleeve (10); the drive motor (16) is fixedly mounted on the fixed plate (17); an output end of the drive motor (16) is connected to the worm (19) via a coupling; the guide sleeve (10) is disposed opposite to the drive motor (16); An opening (24) is provided at one end, a rack (20) fixedly connected to the buffer plate (11) is provided in the opening (24), a second mounting plate (23) is fixed on the guide sleeve (10) and located on both sides of the opening (24), a second rotating shaft (22) is rotatably mounted on the second mounting plate (23), a gear (21) and a worm wheel (18) are fixedly mounted on the second rotating shaft (22), the gear (21) is meshingly connected to the rack (20), and the worm wheel (18) is meshingly connected to the worm (19).

4. The raw material conveying device for sintering blast furnace according to claim 1, characterized in that: Baffles (25) are fixed to both ends of the guide plate (9).

5. The raw material conveying device for sintering blast furnace according to claim 1, characterized in that: The material guide plate (9) comprises an inclined section (26) and a vertical section (27), the lower end of the inclined section (26) adjoining the upper end of the vertical section (27), and the material on the first belt conveyor (3) is guided to the buffer plate (11) or the transfer bin (2) via the inclined section (26).

6. The raw material conveying device for sintering blast furnace according to claim 1, characterized in that: The frame (1) is provided with three track beams (5), the track trolley (6) comprises three rows of track wheels (28) corresponding one to one with the track beams (5), the transfer bin (2) is located below the gap between one of the two adjacent track beams (5), and the first belt conveyor (3) is located above the gap between the other two adjacent track beams (5).

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