Feeder device of iron-making blast furnace

Abstract

The feeder device comprises a furnace body, a device plate is transversely and fixedly connected to the bottom of the outer side surface of the furnace body, a feeding barrel with the top end open is vertically and fixedly connected to the position, located on the upper portion of the device plate, of the surface of one side of the furnace body, and an auger is vertically and rotationally connected to the interior of the feeding barrel in the length direction of the feeding barrel. The utility model relates to the technical field of blast furnace ironmaking. According to the feeder device of the iron-making blast furnace, the open feeding barrel, the top hopper and the first discharging groove are arranged, the top end of the feeding barrel of the device is open and expands outwards to form a hopper-shaped structure, and after iron ore is conveyed into the top hopper at the top end, the iron ore on one side can be discharged along the first discharging groove under the action of the gravity of the iron ore; and the iron ore on the other side can flow towards the first discharging groove under the action of the gravity of the iron ore, so that the iron ore is prevented from being clamped between the feeding barrel and the packing auger, the packing auger is prevented from being abraded, and the service life of the device is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to blast furnace ironmaking technical field, concretely is a kind of feeder device of ironmaking blast furnace. BACKGROUND

[0002] Ironmaking is the process of extracting metallic iron from iron-bearing minerals (mainly iron oxides), and it is mainly done by the blast furnace method, direct reduction method, smelting reduction method and plasma method. From a metallurgical perspective, ironmaking is the reverse process of rusting and gradual mineralization of iron. In simple terms, it is the reduction of pure iron from iron-containing compounds.

[0003] Chinese patent CN 220663853 U provides a metallurgical blast furnace feeding and conveying mechanism, which transports iron ore through a feeding cylinder and an auger structure. However, the top end of the feeding cylinder is a closed structure, and iron ore is not a fluid. The feeding cylinder only has a discharge cylinder on one side. When the iron ore is transported to the top end of the feeding cylinder, the iron ore on the other side of the discharge cylinder may be stuck between the auger and the feeding cylinder. After a long time, it will cause wear and even damage the structure of the auger. The watering structure in it is driven by the elastic force of the spring to rebound the piston. If the water pressure or air pressure is too high, it cannot guarantee the rebound effect, and there are certain problems in specific implementation. SUMMARY

[0004] To overcome the shortcomings of the prior art, the utility model provides a kind of feeder device of ironmaking blast furnace, solve the problem that iron ore can be stuck between auger and feeding cylinder.

[0005] To achieve the above purpose, the utility model is implemented by the following technical solutions: a kind of feeder device of ironmaking blast furnace, including furnace body, the bottom of the lateral surface of the furnace body is fixedly connected with device plate, the vertical surface of the one side of the furnace body and the upper part of the device plate is fixedly connected with the feeding cylinder of top open, the inside of the feeding cylinder is vertically rotatably connected with the auger along its length direction;

[0006] The top end of the feeding cylinder is expanded to form a top hopper, and the side surface of the top hopper extends to form a first discharge chute at the furnace opening of the furnace body. The outer surface of the top hopper is fixedly connected with a receiving disc having an outer diameter larger than that of the top hopper. The side of the receiving disc extends to form a second discharge chute at the furnace opening of the furnace body.

[0007] Further, the rotating shaft of the auger is rotatably extended through the bottom end of the feeding cylinder and the device plate, a driven gear is fixedly connected to the surface of the rotating shaft and located at the lower part of the device plate, a motor box is fixedly connected to the upper surface of the device plate and located at the outside of the feeding cylinder, a motor is fixedly connected in the motor box, the output shaft of the motor is rotatably extended through the device plate and downwardly, a driving gear is fixedly connected to the surface of the output shaft of the motor and located below the driving gear.

[0008] Further, the bottom of the outer surface of the feeding cylinder is communicated with a feeding groove with an open top end.

[0009] Further, the upper surface of the device plate is fixedly connected with a water tank, a device opening is formed in the surface of the water tank, a water suction pipe is fixedly connected in the device opening and extends to the bottom end of the water tank, the other end of the water suction pipe extends to the lower part of the device plate, a rotating disc is fixedly connected to the surface of the output shaft of the motor and located below the driving gear, an eccentric column is fixedly connected to the bottom end of the rotating disc and arranged eccentrically, a connecting rod is hingedly connected to the outer surface of the eccentric column, a piston rod is hingedly connected to the other end of the connecting rod and extends to the water suction pipe, and a piston is fixedly connected to the inner end of the piston rod and located in the water suction pipe and has an outer surface which is in interference connection with the inner surface of the water suction pipe.

[0010] Further, the water suction pipe is communicated with a water delivery pipe, the other end of the water delivery pipe extends to one side of the feeding groove, a plurality of branch pipes are communicated with the water delivery pipe and extend to the upper part of the feeding groove, and a plurality of spray nozzles are arranged at the bottom end of the branch pipes.

[0011] Further, a plurality of water leakage openings are vertically formed in the bottom end of the feeding cylinder.

[0012] Further, the water suction pipe and the water delivery pipe are respectively provided with a first one-way valve and a second one-way valve.

[0013] Compared with the prior art, the device has the following beneficial effects:

[0014] (1) The feeding device of the iron-making blast furnace is provided with an open feeding cylinder, a top hopper and a first discharge groove, the top end of the feeding cylinder is open and is outwardly expanded to form a hopper structure, when the iron ore is conveyed into the top hopper, the iron ore on one side is discharged along the first discharge groove under the action of gravity, and the iron ore on the other side flows to the direction of the first discharge groove under the action of gravity, so as to reciprocate, which avoids that the iron ore is stuck between the feeding cylinder and the auger, and avoids that the auger is abraded, thereby prolonging the service life of the device.

[0015] (2), the feeding device of the iron-making blast furnace, by setting eccentric column, connecting rod and piston rod, the device is fixedly connected with rotating disc on the output shaft of motor, the bottom end of rotating disc is fixedly connected with eccentrically arranged eccentric column, and the outer surface of eccentric column is hinged with connecting rod, the eccentric column is driven to move in a circle by rotating disc, and the connecting rod drives the piston rod to move in this process, the piston at the other end of piston rod is arranged in the inside of water pumping pipe, so that the piston rod can only move reciprocatingly in the horizontal direction, and the structure can drive the piston to move reciprocatingly in the horizontal direction to pump water, and the structure is driven by motor throughout, and is not affected by water pressure and air pressure. BRIEF DESCRIPTION OF DRAWINGS

[0016] Fig. 1 It is overall structure schematic diagram of the utility model;

[0017] Fig. 2 It is watering structure schematic diagram of the utility model;

[0018] Fig. 3 It is discharge structure schematic diagram of the utility model.

[0019] In the drawing: 1-furnace body, 2-device plate, 3-feeding cylinder, 4-auger, 5-top hopper, 6-first discharge chute, 7-receiving disc, 8-second discharge chute, 9-driven gear, 10-motor box, 11-driving gear, 12-feeding groove, 13-rotating disc, 14-eccentric column, 15-connecting rod, 16-piston rod, 17-water pumping pipe, 18-piston, 19-water tank, 20-water supply pipe, 21-first check valve, 22-second check valve, 23-shunt pipe, 24-leakage. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0021] Please refer to Figs. 1-3 The utility model provides a kind of technical solutions: a kind of feeding device of the iron-making blast furnace, including furnace body 1, the bottom transverse fixed connection of the lateral surface of furnace body 1 is equipped with device plate 2, the upper part vertical fixed connection of one side surface of furnace body 1 and located device plate 2 is equipped with the feeding cylinder 3 of top open, auger 4 is vertically rotatably connected in the inside of feeding cylinder 3 along its length direction;

[0022] The top end of the feeding cylinder 3 is outwardly expanded to form a top hopper 5, one side surface of the top hopper 5 extends to the furnace mouth of the furnace body 1 to form a first discharge chute 6, and the outer surface of the top hopper 5 is fixedly connected with a receiving disc 7 having an outer diameter larger than that of the top hopper 5, and one side of the receiving disc 7 extends to the furnace mouth of the furnace body 1 to form a second discharge chute 8.

[0023] The top end of the feeding cylinder 3 of the device is open and outwardly expanded to form a hopper structure, when the iron ore is transported into the top hopper 5 at the top end, the iron ore on one side will be discharged along the first discharge chute 6 under the action of its own gravity, and the iron ore on the other side will flow towards the first discharge chute 6 under the action of its own gravity, and the structure reciprocates, which avoids the iron ore being stuck between the feeding cylinder 3 and the auger 4, and also avoids the abrasion of the auger 4, thereby improving the service life of the device.

[0024] If the iron ore in the top hopper 5 overflows when the feeding speed is too fast, the overflowing iron ore will fall into the inside of the receiving disc 7 and move towards the second discharge chute 8 under the action of its own gravity until it is discharged through the second discharge chute 8.

[0025] The rotating shaft of the auger 4 rotatably penetrates the bottom end of the feeding cylinder 3 and the device plate 2 and extends downward, a driven gear 9 is fixedly connected to the surface of the rotating shaft of the auger 4 and located at the lower part of the device plate 2, a motor box 10 is fixedly connected to the upper surface of the device plate 2 and located at the outer side of the feeding cylinder 3 in a vertical manner, a motor is fixedly connected in the inside of the motor box 10, an output shaft of the motor rotatably penetrates the device plate 2 and extends downward, and a driving gear 11 is fixedly connected to the surface of the output shaft of the motor and located at the lower part of the device plate 2 and meshes with the driven gear 9.

[0026] When the motor operates, the output shaft rotates to drive the driven gear 9 to rotate through the driving gear 11 on the surface of the output shaft, and the rotating shaft of the auger 4 is driven to rotate through the driven gear 9, so as to drive the auger 4 to rotate to transport the iron ore in the feeding cylinder 3.

[0027] The bottom of the outer surface of the feeding cylinder 3 is communicated with a feeding chute 12 having an open top end.

[0028] The feeding chute 12 is used to add iron ore into the feeding cylinder 3, and is arranged in a whole inclined manner, so that the iron ore can move towards the inside of the feeding cylinder 3 under the action of its own gravity.

[0029] The upper surface outer end of the device plate 2 is fixedly connected with a water tank 19, a device port is formed through the surface of the water tank 19, the inside of the device port is fixedly connected with a water suction pipe 17 extending to the inside bottom end of the water tank 19, the other end of the water suction pipe 17 extends to the lower side of the device plate 2, the surface of the output shaft of the motor and below the driving gear 11 is fixedly connected with a rotating disc 13, the bottom end of the rotating disc 13 is fixedly connected with an eccentric column 14 arranged eccentrically, the outer surface of the eccentric column 14 is hingedly connected with a connecting rod 15, the other end of the connecting rod 15 is hingedly connected with a piston rod 16 extending to the inside of the water suction pipe 17, the inside of the piston rod 16 and inside the water suction pipe 17 is fixedly connected with a piston 18 with the outer surface of the piston 18 being in interference connection with the inner surface of the water suction pipe 17.

[0030] The water suction pipe 17 is communicated with a water delivery pipe 20, the other end of the water delivery pipe 20 extends to one side of the feeding groove 12, the water delivery pipe 20 is communicated with a plurality of shunt pipes 23 extending to the upper part of the feeding groove 12, the bottom end of each of the plurality of shunt pipes 23 is provided with a plurality of spray ports.

[0031] When the motor is running, the rotating disc 13 at the bottom end of the output shaft will continuously rotate, the eccentric column 14 at the bottom end of the rotating disc 13 will perform a circular motion, the connecting rod 15 hingedly connected with the surface of the eccentric column 14 will drive the piston rod 16 hingedly connected with the other end of the connecting rod 15 to move, since the outer surface of the piston 18 at the other end of the piston rod 16 is in interference connection with the inside of the water suction pipe 17, the piston rod 16 can only move back and forth along the length direction of the water suction pipe 17, thereby driving the piston 18 to move synchronously, in this process, the water in the water tank 19 will be first sucked into the inside of the water suction pipe 17, then be shunted to the plurality of shunt pipes 23 through the water delivery pipe 20 and finally be sprayed downward into the iron ore in the feeding groove 12 through the plurality of spray ports, so as to clean the iron ore.

[0032] The inside of the water suction pipe 17 and the water delivery pipe 20 is respectively provided with a first one-way valve 21 and a second one-way valve 22.

[0033] The first one-way valve 21 and the second one-way valve 22 ensure that the cleaning structure can always run smoothly and stably in one direction, and water will not flow back to the inside of the water tank 19.

[0034] A plurality of water leakage ports 24 are vertically formed through the bottom end of the feeding cylinder 3.

[0035] The plurality of water leakage ports 24 are used for draining water to prevent water used for cleaning the iron ore from accumulating in the inside of the feeding cylinder 3.

[0036] When working, the top end of the feeding cylinder 3 of the device is open and is expanded to form a bucket structure, when the iron ore is transported to the top hopper 5 at the top end, the iron ore on one side will be discharged along the first discharge chute 6 under the action of its own gravity, and the iron ore on the other side will flow to the direction of the first discharge chute 6 under the action of its own gravity, and the structure reciprocates, which avoids the iron ore from being stuck between the feeding cylinder 3 and the auger 4, and also avoids the auger 4 from being worn, improves the service life of the device, and meanwhile, when the motor operates, the rotating disc 13 at the bottom end of the output shaft thereof continuously rotates, the eccentric column 14 at the bottom end of the rotating disc 13 performs a circular motion, and the connecting rod 15 hinged to the surface of the eccentric column 14 drives the piston rod 16 hinged to the other end of the connecting rod 15 to move, since the piston 18 at the other end of the piston rod 16 is in interference connection with the inner surface of the water suction pipe 17, the piston rod 16 can only move back and forth along the length direction of the water suction pipe 17, so as to drive the piston 18 to move synchronously, in this process, the water in the water tank 19 is first sucked into the water suction pipe 17, and then is distributed into the plurality of distribution pipes 23 through the water delivery pipe 20 and is finally sprayed downward through the plurality of spray openings into the iron ore in the feeding chute 12, so as to clean the iron ore.

[0037] It should be noted that the relational terms herein such as first and second and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any such actual relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0038] The above only is the preferred embodiment of the present application, and does not limit the present application, and any modification, equivalent replacement, improvement and the like within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. A feeding device for an ironmaking blast furnace, characterized in that: The furnace includes a furnace body (1), a device plate (2) is horizontally fixedly connected to the bottom of the outer surface of the furnace body (1), a feeding cylinder (3) with an open top is vertically fixedly connected to one side surface of the furnace body (1) and above the device plate (2), and an auger (4) is vertically rotatably connected inside the feeding cylinder (3) along its length. The top of the feeding cylinder (3) expands outward to form a top hopper (5). One side surface of the top hopper (5) extends toward the furnace opening of the furnace body (1) to form a first unloading groove (6). A receiving plate (7) with an outer diameter larger than its outer diameter is fixedly connected to the lower part of the outer surface of the top hopper (5). One side of the receiving plate (7) extends toward the furnace opening of the furnace body (1) to form a second unloading groove (8).

2. The feeding device for a blast furnace according to claim 1, characterized in that: The shaft of the auger (4) rotatably passes through the bottom end of the feeding cylinder (3) and the device plate (2) and extends downward. A driven gear (9) is fixedly connected to the surface of the shaft of the auger (4) and the lower part of the device plate (2). A motor housing (10) is vertically fixedly connected to the upper surface of the device plate (2) and the outer side of the feeding cylinder (3). A motor is fixedly connected inside the motor housing (10). The output shaft of the motor rotatably passes through the device plate (2) and extends downward. A drive gear (11) that meshes with the driven gear (9) is fixedly connected to the surface of the output shaft of the motor and the lower part of the device plate (2).

3. The feeding device for an ironmaking blast furnace according to claim 2, characterized in that: The bottom of the outer surface of the feeding cylinder (3) is connected to a feeding trough (12) with an open top.

4. The feeding device for an ironmaking blast furnace according to claim 3, characterized in that: A water tank (19) is fixedly connected to the outer end of the upper surface of the device plate (2). A device opening is provided through the surface of the water tank (19). A water pumping pipe (17) with its inner end extending to the bottom of the water tank (19) is fixedly connected inside the device opening. The other end of the water pumping pipe (17) extends to the bottom of the device plate (2). A rotating disk (13) is fixedly connected to the surface of the motor output shaft and below the drive gear (11). An eccentric column (14) is fixedly connected to the bottom end of the rotating disk (13). A connecting rod (15) is hinged to the outer surface of the eccentric column (14). A piston rod (16) with its other end extending to the inside of the water pumping pipe (17) is hinged to the other end of the connecting rod (15). A piston (18) with its outer surface interference-fitted to the inner surface of the water pumping pipe (17) is fixedly connected to the inner end of the piston rod (16) and inside the water pumping pipe (17).

5. The feeding device for an ironmaking blast furnace according to claim 4, characterized in that: The water pumping pipe (17) is connected to a water delivery pipe (20), and the other end of the water delivery pipe (20) extends to one side of the feeding trough (12). The water delivery pipe (20) is connected to a plurality of diversion pipes (23) extending to the upper part of the feeding trough (12). The bottom end of the plurality of diversion pipes (23) is provided with a plurality of nozzles.

6. The feeding device for a blast furnace according to claim 1, characterized in that: The bottom end of the feeding cylinder (3) is vertically perforated with multiple drainage outlets (24).

7. The feeding device for a blast furnace according to claim 5, characterized in that: The pumping pipe (17) and the water supply pipe (20) are respectively equipped with a first check valve (21) and a second check valve (22).

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