Feeding device for adding waste steel into blast furnace

Abstract

The utility model relates to the technical field of blast furnace feeding, and discloses a feeding device for adding scrap steel into a blast furnace, which comprises a base, a group of universal wheels are fixedly arranged at the bottom end of the base, a U-shaped plate is fixedly connected to the top end of the base, and a material box is fixedly connected to the top end of the base and located in the U-shaped plate. The lifting mechanism and the material pumping mechanism are arranged, before feeding, through cooperation of a supporting plate, a supporting base, a rack rod, a connecting plate, a telescopic rod, a second motor and a gear, the discharging pipe can be adjusted up and down according to the height of a blast furnace, the discharging pipe is adjusted conveniently, and the discharging pipe can be adjusted conveniently; the discharging pipe is better placed at the opening of the blast furnace for feeding, the practicability of the device is improved, then through cooperation of the charging barrel, the supporting column, the first motor, the auger, the conveying pipe and the discharging pipe, waste steel particles in the material box can be pumped out and conveyed into the blast furnace, material conveying is stable, and the using effect is good.

Description

Technical Field

[0001] The utility model relates to the technical field of blast furnace charging, in particular to a charging device for charging scrap steel to a blast furnace. Background Art

[0002] Increasing the use of scrap steel in blast furnaces is an important measure to increase blast furnace production and reduce the coke ratio per ton of iron in recent years. Scrap steel, as a metallic iron material, can completely replace other iron-containing furnace materials in blast furnaces. Scrap steel is just a heating and melting process in the blast furnace, which does not require huge reduction heat consumption and long smelting time.

[0003] The existing referenceable Chinese utility model patent has a publication number of CN219362347U, which discloses a feeding device for adding scrap steel to a blast furnace. When the device is in use, the scrap steel particles to be fed are first placed in a scrap steel hopper. When feeding, the scrap steel particles inside the scrap steel hopper enter the feed pipe through a discharge chute, and are then transported to the blast furnace by the feed pipe, thereby realizing a convenient and quick feeding process. In addition, this tubular feeding structure has a low cost, requires a small space, and has a relatively low cost.

[0004] When in use, the above-mentioned feeding device cannot adjust the feeding according to the height of the blast furnace, which reduces its practicality. In addition, at the discharge port of the feeding device, dust is easily raised when the transported material falls, and good dust reduction treatment cannot be performed, which easily causes environmental pollution. Therefore, technical personnel in this field provide a feeding device for adding scrap steel to a blast furnace to solve the problems raised in the above-mentioned background technology. Utility Model Content

[0005] 1. Technical issues to be resolved

[0006] In view of the deficiencies in the prior art, the utility model provides a feeding device for adding scrap steel to a blast furnace, which has the advantages of adjustable feeding and dust reduction, and solves the above-mentioned technical problems.

[0007] (II) Technical solution

[0008] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0009] A feeding device for adding scrap steel to a blast furnace comprises a base, a group of universal wheels are fixedly arranged at the bottom end of the base, a U-shaped plate is fixedly connected to the top end of the base, a material box is fixedly connected to the top end of the base and located inside the U-shaped plate, two guide plates are fixedly connected to the bottom end of the inside of the material box, a material extraction mechanism is arranged above the inside of the U-shaped plate, a lifting mechanism is arranged on the left side of the U-shaped plate, and a dust reduction mechanism is arranged at the top end of the U-shaped plate;

[0010] The material extraction mechanism includes: a barrel is arranged in the middle of the interior of the U-shaped plate, a group of pillars are fixedly connected to the front and rear end walls of the barrel, one end of the two groups of pillars are respectively fixedly connected to the front and rear end walls of the U-shaped plate, a first motor is fixedly installed on the top of the interior of the U-shaped plate, the output end of the first motor passes through the interior of the barrel and is fixedly connected to a dragon, a feed pipe is fixedly connected to the upper left side wall of the barrel, and one end of the feed pipe is fixedly connected to a discharge pipe.

[0011] As a preferred technical solution of the utility model, the barrel extends to the lower part of the interior of the material box.

[0012] As a preferred technical solution of the present utility model, the feed pipe is a stretchable pipe.

[0013] As the preferred technical solution of the present utility model, the lifting mechanism includes: the front and rear parts of the left side wall of the U-shaped plate are fixedly connected to the support plate, the left side between the two support plates is fixedly connected to the support seat, a rack rod is passed through the support seat, the top end of the rack rod is fixedly connected to the bottom end of the discharge pipe, the bottom end of the rack rod is fixedly connected to the connecting plate, the front and rear parts of the bottom end of the support seat are fixedly connected to the telescopic rod, the telescopic ends of the two telescopic rods are fixedly connected to the top of the connecting plate, the top of the support seat is fixedly installed with a second motor, and the output end of the second motor is fixedly connected to a gear.

[0014] As a preferred technical solution of the present utility model, the gear and the rack rod are meshedly connected.

[0015] As the preferred technical solution of the utility model, the dust reduction mechanism includes: a circular spray plate is fixedly connected to the left side of the outside of the discharge pipe, a group of nozzles is fixedly connected to the left wall of the circular spray plate, a water tank is fixedly arranged on the top of the U-shaped plate, a water pump is fixedly arranged on the top of the water tank, the extraction end of the water pump is connected to the water tank through a first pipe body, and the delivery end of the water pump is connected to the circular spray plate through a second pipe body.

[0016] As a preferred technical solution of the present utility model, a group of the nozzles are arranged at equal distances.

[0017] Compared with the prior art, the utility model provides a feeding device for adding scrap steel to a blast furnace, which has the following beneficial effects:

[0018] 1. The utility model sets a lifting mechanism and a drawing mechanism. Before loading, the discharge pipe can be adjusted up and down according to the height of the blast furnace through the cooperation between the support plate, the support seat, the rack rod, the connecting plate, the telescopic rod, the second motor and the gear, so that the discharge pipe can be better placed at the mouth of the blast furnace for feeding, thereby improving the practicality of the device. Afterwards, through the cooperation between the barrel, the support, the first motor, the dragon, the feed pipe and the discharge pipe, the scrap steel particles in the material box can be extracted and transported to the blast furnace, and the feeding is stable and the use effect is good.

[0019] 2. The utility model is provided with a dust reduction mechanism. When discharging materials, the dust generated during the discharging can be promptly reduced through the cooperation among the annular spray plate, the nozzle, the water tank, the water pump, the first pipe body and the second pipe body to avoid the pollution of the environment caused by the flying dust. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0021] Figure 2 This is a schematic diagram of the structure of the connection between the material box and the guide plate in the utility model;

[0022] Figure 3 This is a schematic diagram of the structure of the connection between the first motor and the dragon in the utility model;

[0023] Figure 4 It is a structural schematic diagram of the connection between the circular ring spray plate and the spray head in the utility model.

[0024] Among them: 1. base; 2. universal wheel; 3. U-shaped plate; 4. material box; 5. guide plate; 6. material extraction mechanism; 601. material barrel; 602. pillar; 603. first motor; 604. dragon; 605. material conveying pipe; 606. material discharging pipe; 7. lifting mechanism; 701. support plate; 702. support seat; 703. rack rod; 704. connecting plate; 705. telescopic rod; 706. second motor; 707. gear; 8. dust suppression mechanism; 801. circular spray plate; 802. nozzle; 803. water tank; 804. water pump; 805. first tube body; 806. second tube body. DETAILED DESCRIPTION

[0025] The following is a further detailed description of the implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but cannot be used to limit the scope of the present invention.

[0026] In the description of the present invention, unless otherwise specified, "multiple" means two or more; the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third" and the like are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0027] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" 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. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0028] See also Figure 1-Figure 4 A feeding device for adding scrap steel to a blast furnace comprises a base 1, a group of universal wheels 2 are fixedly arranged at the bottom end of the base 1, a U-shaped plate 3 is fixedly connected to the top of the base 1, a material box 4 is fixedly connected to the top of the base 1 and located inside the U-shaped plate 3, two guide plates 5 are fixedly connected to the bottom end of the inner part of the material box 4, a material extraction mechanism 6 is arranged on the upper part of the U-shaped plate 3, a lifting mechanism 7 is arranged on the left side of the U-shaped plate 3, and a dust reduction mechanism 8 is arranged on the top of the U-shaped plate 3.

[0029] The material extraction mechanism 6 includes: a barrel 601 is arranged in the middle of the interior of the U-shaped plate 3, and the front and rear end walls of the barrel 601 are fixedly connected to a group of pillars 602, one end of the two groups of pillars 602 are respectively fixedly connected to the front and rear end walls of the interior of the U-shaped plate 3, a first motor 603 is fixedly installed on the top of the interior of the U-shaped plate 3, the output end of the first motor 603 passes through the interior of the barrel 601 and is fixedly connected to a dragon 604, a feed pipe 605 is fixedly connected to the upper left side wall of the barrel 601, and one end of the feed pipe 605 is fixedly connected to a discharge pipe 606.

[0030] The barrel 601 extends to the lower part of the interior of the tank 4 .

[0031] The material delivery pipe 605 is a stretchable pipe.

[0032] Furthermore, when loading, scrap steel particles are added into the material box 4, and the first motor 603 is started to drive the dragon 604 to rotate, so that the scrap steel particles in the material box 4 can be extracted and transported to the discharge pipe 606 through the feed pipe 605, and then the scrap steel particles are transported into the blast furnace.

[0033] The lifting mechanism 7 includes: the front and rear parts of the left side wall of the U-shaped plate 3 are fixedly connected with a support plate 701, the left side between the two support plates 701 is fixedly connected with a support seat 702, a rack rod 703 is passed through the support seat 702, the top end of the rack rod 703 is fixedly connected to the bottom end of the discharge pipe 606, the bottom end of the rack rod 703 is fixedly connected with a connecting plate 704, the front and rear parts of the bottom end of the support seat 702 are fixedly connected with telescopic rods 705, the telescopic ends of the two telescopic rods 705 are fixedly connected to the top of the connecting plate 704, and a second motor 706 is fixedly installed on the top of the support seat 702, and the output end of the second motor 706 is fixedly connected with a gear 707.

[0034] The gear 707 and the rack rod 703 are meshingly connected.

[0035] Furthermore, the second motor 706 is started to rotate forward and reverse, and its gear 707 drives the rack rod 703 to rotate forward and reverse, and the two telescopic rods 705 stretch and shrink accordingly, so that the discharge pipe 606 can be adjusted up and down, which makes it easier to place the discharge pipe 606 according to the height of the blast furnace so that it can be better placed for feeding, with good use effect and strong practicality.

[0036] The dust reduction mechanism 8 includes: a circular spray plate 801 is fixedly connected to the left side of the outside of the discharge pipe 606, a group of nozzles 802 is fixedly connected to the left wall of the circular spray plate 801, a water tank 803 is fixedly arranged on the top of the U-shaped plate 3, a water pump 804 is fixedly arranged on the top of the water tank 803, the extraction end of the water pump 804 is connected to the water tank 803 through the first tube body 805, and the delivery end of the water pump 804 is connected to the circular spray plate 801 through the second tube body 806.

[0037] A group of nozzles 802 are arranged at equal distances.

[0038] Furthermore, the water pump 804 is started to pump out the water in the water tank 803, so that the water is transported to the annular spray plate 801 through the second tube body 806, and then sprayed out from a group of nozzles 802, so as to reduce the dust generated during the discharge and avoid pollution to the environment.

[0039] Working principle: when in use, the scrap steel particles are added into the material box 4, and then the second motor 706 is started to rotate forward and backward, and its gear 707 drives the rack rod 703 to rotate forward and backward, and the two telescopic rods 705 are stretched and contracted accordingly, so that the discharge pipe 606 can be adjusted up and down, so that the discharge pipe 606 can be placed and fed better according to the height of the blast furnace, and then the device is moved to one side of the blast furnace so that the discharge pipe 606 is aligned with the blast furnace mouth, and the first motor 603 is started to drive the dragon 604 to rotate, so that the scrap steel particles in the material box 4 can be extracted and transported to the discharge pipe 606 through the feed pipe 605, and then the scrap steel particles are transported to the blast furnace, and at the same time, the water pump 804 is started to extract the water inside the water tank 803, so that it is transported to the annular spray plate 801 through the second pipe body 806, and then sprayed out from a group of nozzles 802, so that the dust generated during the discharge can be treated to reduce dust and avoid pollution to the environment.

[0040] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A blast furnace feeding device for adding scrap steel, comprising a base (1), characterized in that: A group of universal wheels (2) are fixedly arranged at the bottom end of the base (1), a U-shaped plate (3) is fixedly connected to the top end of the base (1), a material box (4) is fixedly connected to the top end of the base (1) and located inside the U-shaped plate (3), two guide plates (5) are fixedly connected to the bottom end of the inside of the material box (4), a material extraction mechanism (6) is arranged at the top of the inside of the U-shaped plate (3), a lifting mechanism (7) is arranged on the left side of the U-shaped plate (3), and a dust reduction mechanism (8) is arranged at the top end of the U-shaped plate (3); The material extraction mechanism (6) comprises: a material barrel (601) is arranged in the middle of the interior of the U-shaped plate (3); the front and rear end walls of the material barrel (601) are fixedly connected to a group of pillars (602); one end of the two groups of pillars (602) are respectively fixedly connected to the front and rear end walls of the interior of the U-shaped plate (3); a first motor (603) is fixedly installed at the top of the interior of the U-shaped plate (3); the output end of the first motor (603) passes through the interior of the material barrel (601) and is fixedly connected to a dragon (604); a material delivery pipe (605) is fixedly connected to the upper left side wall of the material barrel (601); one end of the material delivery pipe (605) is fixedly connected to a discharge pipe (606).

2. A blast furnace scrap steel feeding device according to claim 1, characterized in that: The barrel (601) extends to the lower part of the interior of the tank (4).

3. The blast furnace scrap steel feeding device according to claim 1, characterized in that: The material delivery pipe (605) is a stretchable pipe.

4. A blast furnace scrap steel feeding device according to claim 1, characterized in that: The lifting mechanism (7) comprises: a support plate (701) is fixedly connected to the front and rear parts of the left side wall of the U-shaped plate (3); a support seat (702) is fixedly connected to the left side between the two support plates (701); a rack rod (703) is passed through the support seat (702); the top end of the rack rod (703) is fixedly connected to the bottom end of the discharge pipe (606); the bottom end of the rack rod (703) is fixedly connected to a connecting plate (704); the front and rear parts of the bottom end of the support seat (702) are fixedly connected to telescopic rods (705); the telescopic ends of the two telescopic rods (705) are fixedly connected to the top end of the connecting plate (704); a second motor (706) is fixedly installed on the top end of the support seat (702); and the output end of the second motor (706) is fixedly connected to a gear (707).

5. A blast furnace scrap steel feeding device according to claim 4, characterized in that: The gear (707) and the rack rod (703) are meshingly connected.

6. A blast furnace scrap steel feeding device according to claim 1, characterized in that: The dust reduction mechanism (8) comprises: a circular spray plate (801) is fixedly connected to the left side of the outside of the discharge pipe (606), a group of nozzles (802) is fixedly connected to the left side wall of the circular spray plate (801), a water tank (803) is fixedly arranged at the top of the U-shaped plate (3), a water pump (804) is fixedly arranged at the top of the water tank (803), the extraction end of the water pump (804) is connected to the water tank (803) through the first pipe body (805), and the delivery end of the water pump (804) is connected to the circular spray plate (801) through the second pipe body (806).

7. A blast furnace scrap steel feeding device according to claim 6, characterized in that: A group of the nozzles (802) are arranged at equal distances.

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