A blast furnace charging distributor

Abstract

The utility model belongs to blast furnace material loading technical field, concretely is a blast furnace material loading distributing machine, including blast furnace body, hopper, with hopper fixed connection's material loading cylinder, fixed mounting in the inner wall of blast furnace body's storage bucket, the inner wall fixed connection of storage bucket has support frame, the inside fixed mounting of support frame has drive mechanism, fixed mounting in the inner wall of blast furnace body's annular guide plate. Through setting up the double distribution structure of conical distributing board and annular guide plate, the leakage groove one of conical distributing board surface circumference array can preliminarily disperse a part of raw material, another part of raw material falls to annular guide plate, and again evenly dispersed through the leakage groove two of same circumference array on annular guide plate, simultaneously servo motor one drives conical distributing board to rotate, makes raw material evenly distributed in the circumference direction, effectively solved the problem of uneven distribution of existing equipment, guarantee the stability of the reaction in blast furnace, and spiral conveying board one can be after stirring raw material stable conveying to conical distributing board.

Description

Technical Field

[0001] This utility model belongs to the field of blast furnace charging technology, specifically relating to a blast furnace charging and distributing machine. Background Technology

[0002] In the blast furnace ironmaking process, the charging and distributing machine is one of the key pieces of equipment. Its main function is to uniformly transport raw materials such as iron ore and coke into the blast furnace. The uniformity of the material distribution directly affects the reaction efficiency, fuel consumption and pig iron quality in the blast furnace.

[0003] Patent application (publication number: CN218539737U) discloses a precision charging device for a blast furnace, comprising a blast furnace body, a slag outlet on one side of the blast furnace body, an iron outlet on the other side of the blast furnace body, a gas outlet on one side of the upper part of the blast furnace body, a furnace base fixedly installed at the bottom of the blast furnace body, a bottom plate fixedly installed at the bottom of the furnace base, and a top cover fixedly installed at the top of the blast furnace body. A support frame is threadedly connected to one side of the top cover, and a feeding mechanism is installed on one side of the support frame. The feeding mechanism includes a drive motor, a rotating rod, and a feeding plate. This precision charging device for a blast furnace, through the drive motor, rotating rod, and feeding plate, can assist in the conveying of the added material, thereby avoiding blockage of the feed inlet. The drive motor drives the rotating rod to move, and the rotating rod drives the feeding plate to move, thereby assisting in the conveying of the material in the feed hopper, making the charging effect better.

[0004] In the aforementioned application, the material is conveyed into the blast furnace body by rotating the feed plate through the rotating rod. However, since the feed plate is vertical, the material it conveys will fall in a straight line under the action of gravity and cannot be evenly dispersed. Therefore, the material is prone to accumulation or uneven distribution in the blast furnace. Utility Model Content

[0005] To address the problems mentioned in the background section, this utility model provides a blast furnace charging and distributing machine, which solves the problem of material accumulation or uneven distribution in the blast furnace.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a blast furnace charging and distributing machine, comprising:

[0007] Blast furnace body;

[0008] Hopper, and feeding cylinder fixedly connected to the hopper;

[0009] A storage bin is fixedly installed on the inner wall of the blast furnace body. A support frame is fixedly connected to the inner wall of the storage bin, and a drive mechanism is fixedly installed inside the support frame.

[0010] A ring-shaped guide plate fixedly installed on the inner wall of the blast furnace body;

[0011] The drive mechanism includes:

[0012] Servo motor 1;

[0013] The reducer has a rotating rod fixedly connected to its output end;

[0014] The stirring rods are fixedly installed on one surface of the rotating rod and are distributed in a circumferential array;

[0015] A screw conveyor plate is fixedly installed on the surface of a rotating rod.

[0016] A tapered fabric plate is fixedly installed at the bottom end of a rotating rod, and a groove is formed on the surface of the tapered fabric plate.

[0017] Optional, also includes:

[0018] Electric telescopic pole;

[0019] A connecting seat is fixedly installed on the lower surface of the hopper, and the electric telescopic rod is movably connected to the connecting seat.

[0020] Optionally, the higher end of the feeding cylinder is movably connected to the storage tank via a pivot pin.

[0021] Optionally, a servo motor 2 is fixedly installed inside one side of the hopper, and a rotating rod 2 is fixedly connected to the output end of the servo motor 2. A spiral conveying plate 2 is fixedly connected to the surface of the rotating rod 2, and both the rotating rod 2 and the spiral conveying plate 2 pass through the inside of the upper cylinder.

[0022] Optionally, the surface of the annular guide plate is provided with a second groove, and both the second groove and the first groove are arranged in a circular array of several.

[0023] Optionally, the tapered fabric plate is positioned above the annular guide plate.

[0024] Optionally, the reducer is connected to the output terminal of the servo motor.

[0025] Optionally, the bottom of the storage hopper is conical and has a discharge port, and the spiral conveyor plate passes through the discharge port.

[0026] Compared with the prior art, the beneficial effects of this utility model are:

[0027] This blast furnace charging and distributing machine employs a dual distributing structure consisting of a conical distributing plate and an annular guide plate. The conical distributing plate's circumferential array of grooves initially disperses some of the raw material, while the remaining material slides onto the annular guide plate and is further evenly dispersed by the same circumferential array of grooves. Simultaneously, a servo motor drives the conical distributing plate to rotate, ensuring uniform circumferential distribution of the raw material. This effectively solves the problem of uneven material distribution in existing equipment, guaranteeing the stability of the reaction within the blast furnace. A servo motor in the hopper drives a rotating rod and a spiral conveyor plate to rotate, rapidly transporting the raw material from the hopper to the storage tank, preventing accumulation at the connection between the hopper and the charging cylinder. The stirring rods in the storage tank are arranged in a circumferential array, thoroughly stirring the raw material under the influence of the rotating rod to prevent clumping. The spiral conveyor plate stably transports the stirred material to the conical distributing plate. Combined with the conical bottom and discharge port design of the storage tank, this further reduces the risk of blockage and improves the continuity of charging. Attached Figure Description

[0028] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model, used together with the embodiments of this utility model to explain this utility model, and do not constitute a limitation on this utility model. In the drawings:

[0029] Figure 1 This is a complete structural schematic diagram of the present invention;

[0030] Figure 2 This is a top view structural diagram of the present invention;

[0031] Figure 3 This is a diagram of the internal structure of the blast furnace body of this utility model.

[0032] In the diagram: 1. Blast furnace body; 2. Hopper; 3. Charging cylinder; 4. Storage tank; 5. Support frame; 6. Annular guide plate; 7. Servo motor one; 8. Reducer; 9. Rotating rod one; 10. Stirring rod; 11. Spiral conveyor plate one; 12. Conical charging plate; 13. Chute one; 14. Electric telescopic rod; 15. Connecting seat; 16. Servo motor two; 17. Rotating rod two; 18. Spiral conveyor plate two; 19. Chute two. Detailed Implementation

[0033] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0034] Please see Figure 1-3 This utility model provides the following technical solution: a blast furnace charging and distributing machine, comprising:

[0035] Blast furnace body 1;

[0036] Hopper 2, and feeding cylinder 3 fixedly connected to hopper 2;

[0037] A storage bin 4 is fixedly installed on the inner wall of the blast furnace body 1. A support frame 5 is fixedly connected to the inner wall of the storage bin 4. A drive mechanism is fixedly installed inside the support frame 4.

[0038] An annular guide plate 6 is fixedly installed on the inner wall of the blast furnace body 1;

[0039] The drive mechanism includes:

[0040] Servo motor 17;

[0041] Reducer 8, the output end of reducer 8 is fixedly connected to a rotating rod 9;

[0042] The stirring rods 10 are fixedly installed on the surface of the rotating rod 9 and are arranged in a circumferential array;

[0043] The spiral conveyor plate 11 is fixedly installed on the surface of the rotating rod 9;

[0044] A tapered fabric plate 12 is fixedly installed at the bottom end of the rotating rod 9, and a groove 13 is provided on the surface of the tapered fabric plate 12.

[0045] In this embodiment, by setting a dual feeding structure of a conical feeding plate 12 and an annular guide plate 6, the grooves 13 arranged in a circular array on the surface of the conical feeding plate 12 can initially disperse a portion of the raw material. Another portion of the raw material slides down to the annular guide plate 6 and is then evenly dispersed again by the grooves 19 arranged in a similar circular array on the annular guide plate 6. Simultaneously, the servo motor 7 drives the conical feeding plate 12 to rotate, ensuring that the raw material is evenly distributed in the circumferential direction. This effectively solves the problem of uneven feeding in existing equipment, ensuring the stability of the reaction inside the blast furnace. The motor 16 drives the rotating rod 17 and the screw conveyor plate 18 to rotate, which can quickly transport the raw materials in the hopper 2 to the storage tank 4, avoiding the accumulation of raw materials at the connection between the hopper 2 and the feeding cylinder 3. The stirring rods 10 in the storage tank 4 are arranged in a circumferential array. Driven by the rotating rod 9, they can fully stir the raw materials to prevent them from clumping. The screw conveyor plate 11 can stably transport the stirred raw materials to the conical feeding plate 12. Combined with the conical bottom and discharge port design of the storage tank 4, the risk of blockage is further reduced and the feeding continuity is improved.

[0046] Furthermore, it also includes:

[0047] 14 electric telescopic poles;

[0048] A connecting seat 15 is fixedly installed on the lower surface of the hopper 2, and an electric telescopic rod 14 is movably connected to the connecting seat 15.

[0049] Furthermore, the higher end of the feeding cylinder 3 is movably connected to the storage tank 4 via a pivot pin.

[0050] Specifically, the height of the hopper 2 can be changed by adjusting the extension length of the electric telescopic rod 14 to the connecting seat 15 on the lower surface of the hopper 2, and the feeding cylinder 3 and the storage barrel 4 can be connected by a shaft pin, thereby adapting to different feeding methods (manual feeding or machine feeding) and improving the versatility of the equipment.

[0051] Furthermore, a servo motor 2 16 is fixedly installed inside one side of the hopper 2. A rotating rod 2 17 is fixedly connected to the output end of the servo motor 2 16. A spiral conveying plate 2 18 is fixedly connected to the surface of the rotating rod 2 17. Both the rotating rod 2 17 and the spiral conveying plate 2 18 pass through the inside of the upper feed cylinder 3.

[0052] Specifically, the output end of servo motor 2 16 is connected to a rotating rod 2 17 that extends into the feed cylinder 3. A spiral conveyor plate 2 18 is fixed on the rotating rod 2 17. Servo motor 2 16 is an AC servo motor of model 86ST-M04020 with a rated power of 2kW and a rated speed of 2000rpm. Servo motor 2 16 drives the rotating rod 2 17 and the spiral conveyor plate 2 18 to rotate, forcibly and continuously conveying the raw material in hopper 2 upward into storage tank 4.

[0053] Furthermore, the surface of the annular guide plate 6 is provided with a second groove 19, and both the second groove 19 and the first groove 13 are arranged in a circular array of several.

[0054] Furthermore, the tapered fabric plate 12 is positioned above the annular guide plate 6.

[0055] Specifically, the annular guide plate 6 is fixedly installed on the inner wall of the blast furnace body 1, and its surface is provided with a second groove 19. Several grooves 19 are arranged in a circumferential array. The conical material distribution plate 12 is located above the annular guide plate 6. The material can be initially distributed through the groove 13 on the conical material distribution plate 12. Some of the material that does not fall will fall onto the annular guide plate 6 and then be distributed again through the groove 19, which further improves the uniformity of the material distribution.

[0056] Furthermore, the reducer 8 is connected to the output terminal of the servo motor 7.

[0057] Specifically, the servo motor 7 is an AC servo motor with model number 110ST-M06030, rated power of 3kW and rated speed of 3000rpm; the reducer 8 is a planetary reducer adapted to the servo motor 7, with a reduction ratio of 1:10. The reducer 8 drives the rotating rod 9, which can rotate the stirring rod 10, the spiral conveyor plate 11 and the conical cloth plate 12.

[0058] Furthermore, the bottom of the storage tank 4 is conical and has a discharge port, and the spiral conveyor plate 11 passes through the discharge port.

[0059] Specifically, the spiral conveyor plate 11 can drive the material and convey it downwards to the conical cloth plate 12.

[0060] All electrical equipment in this device is powered by an external power source and is controlled to operate and shut down via a matching control switch.

[0061] Finally, it should be noted that the above descriptions are merely preferred embodiments of this utility model and are not intended to limit the utility model. The selection and detailed description of these embodiments in this specification are for the purpose of better explaining the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. Although the utility model 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 this utility model should be included within the protection scope of this utility model.

Claims

1. A blast furnace charging and distributing machine, characterized in that, include: Blast furnace body (1); Hopper (2), feeding cylinder (3) fixedly connected to hopper (2); A storage bin (4) is fixedly installed on the inner wall of the blast furnace body (1). A support frame (5) is fixedly connected to the inner wall of the storage bin (4). A drive mechanism is fixedly installed inside the support frame (5). An annular guide plate (6) is fixedly installed on the inner wall of the blast furnace body (1); The drive mechanism includes: Servo motor 1 (7); The reducer (8) has a rotating rod (9) fixedly connected to its output end. The stirring rods (10) are fixedly installed on the surface of the rotating rod (9) and are arranged in a circular array; A spiral conveyor plate (11) is fixedly installed on the surface of the rotating rod (9); A tapered fabric plate (12) is fixedly installed at the bottom of the rotating rod (9), and a groove (13) is provided on the surface of the tapered fabric plate (12).

2. The blast furnace charging and distributing machine according to claim 1, characterized in that, Also includes: Electric telescopic pole (14); A connecting seat (15) is fixedly installed on the lower surface of the hopper (2), and an electric telescopic rod (14) is movably connected to the connecting seat (15).

3. The blast furnace charging and distributing machine according to claim 1, characterized in that: The higher end of the feeding cylinder (3) is movably connected to the storage tank (4) via a pivot pin.

4. A blast furnace charging and distributing machine according to claim 1, characterized in that: A servo motor 2 (16) is fixedly installed inside one side of the hopper (2). A rotating rod 2 (17) is fixedly connected to the output end of the servo motor 2 (16). A spiral conveying plate 2 (18) is fixedly connected to the surface of the rotating rod 2 (17). Both the rotating rod 2 (17) and the spiral conveying plate 2 (18) pass through the inside of the upper material cylinder (3).

5. A blast furnace charging and distributing machine according to claim 1, characterized in that: The surface of the annular guide plate (6) is provided with a second groove (19), and the second groove (19) and the first groove (13) are arranged in a circular array of several.

6. A blast furnace charging and distributing machine according to claim 1, characterized in that: The conical fabric plate (12) is positioned above the annular guide plate (6).

7. A blast furnace charging and distributing machine according to claim 1, characterized in that: The reducer (8) is connected to the output end of the servo motor (7).

8. A blast furnace charging and distributing machine according to claim 1, characterized in that: The bottom of the storage hopper (4) is conical and has a discharge port, and the spiral conveyor plate (11) passes through the discharge port.

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