Dust remover for blast furnace ore tank

Abstract

The utility model relates to the technical field of blast furnace ore smelting, and discloses a dust remover for a blast furnace ore tank, which comprises a mixing box and a fan mounted on the mixing box, a dust collecting pipe is mounted at one end of an air inlet of the fan, a dust inlet pipe is mounted at the other end of the dust collecting pipe, and a gas collecting hood is mounted at the other end of the dust inlet pipe. The end, close to the dust inlet pipe, of the dust collecting pipe is rotationally connected and communicated with the dust inlet pipe, the side, close to the mixing box, of the dust inlet pipe is connected with a steering supporting assembly, the steering supporting assembly comprises a steering supporting rail and two rail supporting columns, and the two rail supporting columns are fixedly connected with the two sides of the end, close to the dust inlet pipe, of the mixing box correspondingly; the sides, away from the mixing box, of the two rail supporting columns are fixedly connected with the lower surface of the steering supporting rail. According to the dust remover for the blast furnace ore tank, the dust inlet pipe rotates on the dust collecting pipe, and the gas collecting hood is moved away from the blast furnace ore tank under the condition that the mixing box main body is fixed, so that ore filling operation can be conveniently carried out in the blast furnace ore tank, and the applicability of the dust remover is further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of blast furnace ore smelting, in particular to a dust collector for a blast furnace ore trough. Background Art

[0002] Blast furnace ironmaking is a method of continuously producing liquid pig iron in a vertical reactor using coke, iron-containing ore, limestone, dolomite and other fluxes. It is an important link in modern steel production. This method has relatively simple process, large output, high labor productivity and low energy consumption. Therefore, blast furnace ironmaking is still the main method of modern ironmaking.

[0003] In the entire blast furnace ironmaking process, the feeding system is an important component, and in order to meet the requirements of blast furnace production, batching and regulation, the feeding system is generally equipped with ore troughs and coke troughs to achieve continuous production and improve production efficiency. However, when the existing blast furnace ore trough is in use, due to the height difference of iron ore during the feeding process, a large amount of dust will be generated. Most of the existing dust collection equipment uses high-power vacuum cleaners to absorb and remove dust. During the long-term air passing process of the dust collection pipeline, due to the moisture in the air, dust and dirt will gradually accumulate on the pipe wall, and the dust collection effect will gradually decrease. In addition, these dusts also contain some iron elements. The traditional dust removal method does not recycle them well, resulting in a waste of iron resources.

[0004] For example, the patent disclosed in the publication number CN211677147U discloses a trough dust removal device for a blast furnace ore trough, comprising a mixing box; a fan, the fan is fixedly mounted on the top of the mixing box; a hollow cylinder, the hollow cylinder is arranged above the fan; a dust inlet pipe, the dust inlet pipe is fixedly mounted on the hollow cylinder; an air collecting hood, the air collecting hood is fixedly mounted on the bottom end of the dust inlet pipe; a connecting rod, the connecting rod is rotatably mounted on the inner walls of both sides of the hollow cylinder; a motor, the motor is fixedly mounted on one side of the hollow cylinder, and the output shaft of the motor is fixedly connected to the connecting rod; and two mounting plates, both of which are arranged in the hollow cylinder. By using this device, the advantages of better dust collection effect and higher resource recovery rate are achieved.

[0005] However, the dust collector for the ore trough in the above-mentioned technology still has the following problems: although the mine dust can be collected and recovered by using a gas collecting hood, during actual use, since new ore raw materials need to be added to the blast furnace trough, in order to avoid the gas collecting hood from hindering the addition of ore raw materials, the entire dust removal device needs to be moved away from the position of the blast furnace trough, and subsequently the entire dust removal device needs to be moved back to the original position for dust removal operations, which is cumbersome to use and not conducive to actual operation. Utility Model Content

[0006] In view of the deficiencies in the prior art, the utility model provides a dust collector for a blast furnace ore chute, such as: while the overall position of the dust removal device remains unchanged, the position of the gas collecting hood is moved to avoid hindering the addition of ore raw materials, while avoiding moving the entire dust removal device to affect subsequent reuse.

[0007] To achieve the above-mentioned objectives, the utility model provides the following technical solutions: a dust collector for a blast furnace ore trough, comprising a mixing box and a fan installed on the mixing box, a dust collecting pipe is installed at one end of the fan air inlet, a dust inlet pipe is installed at the other end of the dust collecting pipe, and an air collecting hood is installed at the other end of the dust inlet pipe, the dust collecting pipe is rotatably connected and communicated with the dust inlet pipe at one end close to the dust inlet pipe, a steering support assembly is connected to the side of the dust inlet pipe close to the mixing box, the steering support assembly comprises a steering support track and two track support columns, the two track support columns are respectively fixedly connected to both sides of the mixing box close to one end of the dust inlet pipe, the two track support columns are fixedly connected to the lower surface of the steering support track at the side away from the mixing box, and the upper surface of the steering support track is slidably connected to the lower surface of the dust inlet pipe.

[0008] Furthermore, the steering support track is designed to be disc-shaped, and the steering support track and the dust collecting pipe share the same central axis.

[0009] Furthermore, limiting slide grooves are provided on both inner and outer sides of the lower surface of the steering support track, and two L-shaped limiting sliders are fixedly connected to the lower surface of the dust inlet pipe, and the two L-shaped limiting sliders are slidably connected to the two limiting slide grooves respectively.

[0010] Furthermore, the sides of the two L-shaped limiting sliding blocks away from the dust inlet pipe are both located above the lower surface of the steering support track.

[0011] Furthermore, a plurality of support rods are fixedly connected to the lower surface of the steering support track, the other ends of the plurality of support rods are fixedly connected to the mixing box, and the plurality of support rods are respectively located on both sides of the two track support columns.

[0012] Furthermore, the two rail support columns are fixedly connected to a fixed bracket on one side close to the dust collecting pipe, and the two fixed brackets are fixedly connected to the dust collecting pipe on one side close to the dust collecting pipe, and a rotating power component is connected to one side of one of the fixed brackets.

[0013] Furthermore, the rotating power assembly includes a power motor, a driving gear and an outer gear ring. The outer wall of the power motor is fixedly connected to the outer wall of the fixed bracket through a connecting seat, the output shaft of the power motor is fixedly connected to the driving gear, the outer gear ring is fixedly connected to the dust inlet pipe and is sleeved with the dust collecting pipe, and the outer gear ring is meshed with the driving gear.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] This type of dust collector for the blast furnace ore trough can rotate on the dust collecting pipe through the dust inlet pipe. The gas collecting hood can be moved away from the blast furnace ore trough without moving the mixing box body, so as to facilitate the filling operation in the blast furnace ore trough. There is no need to move the entire dust removal device, which further improves the applicability of the dust removal device. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the overall appearance connection structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the overall appearance connection structure of the utility model from another angle;

[0018] Figure 3 This is a schematic diagram of the overall appearance connection structure of the utility model from another angle;

[0019] Figure 4 Based on Figure 3 A magnified schematic diagram of a part of the connection structure;

[0020] Figure 5 Based on Figure 4 Enlarged schematic diagram of the connection structure at point A in the middle.

[0021] In the figure: 1. mixing box; 2. fan; 3. dust collecting pipe; 4. dust inlet pipe; 5. air collecting hood; 6. steering support track; 7. track support column; 8. L-shaped limit slider; 9. support rod; 11. fixed bracket; 12. power motor; 13. driving gear; 14. outer gear ring; 601, limit slide groove. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0023] See also Figure 1 - Figure 5 A dust collector for a blast furnace ore trough comprises a mixing box 1 and a fan 2 installed on the mixing box 1, a dust collecting pipe 3 is installed at one end of the air inlet of the fan 2, a dust inlet pipe 4 is installed at the other end of the dust collecting pipe 3, and an air collecting hood 5 is installed at the other end of the dust inlet pipe 4. The dust collecting pipe 3 is rotatably connected and communicated with the dust inlet pipe 4 at one end close to the dust inlet pipe 4, and a steering support assembly is connected to the side of the dust inlet pipe 4 close to the mixing box 1, and the steering support assembly comprises a steering support rail 6 and two track support columns 7, the two track support columns 7 are respectively fixedly connected to both sides of the mixing box 1 close to the dust inlet pipe 4, and the two track support columns 7 are fixedly connected to the lower surface of the steering support rail 6 at the side away from the mixing box 1, and the upper surface of the steering support rail 6 is slidably connected to the lower surface of the dust inlet pipe 4.

[0024] like Figure 1 - Figure 5 As shown, the dust collector for a blast furnace ore trough in the utility model is similar in structure to the existing dust collector for a blast furnace ore trough, such as a dust removal device on a trough for a blast furnace ore trough disclosed in the patent with publication number CN211677147U. The main improvement of the utility model is that the user can rotate the gas collecting hood 5 from the blast furnace ore trough to one side while keeping the main body of the dust removal device stationary, so as to facilitate the addition of raw materials to the ore trough. Figures 1 to 5 As shown, when the dust collector for the blast furnace ore trough of the utility model is in use, when ore raw materials need to be added to the blast furnace ore trough, there is no need to move the mixing box 1. The dust inlet pipe 4 together with the gas collecting hood 5 can be rotated and shifted to one side through the rotatably connected dust collecting pipe 3, and the gas collecting hood 5 can be removed from above the ore trough to avoid the dust inlet pipe 4 and the gas collecting hood 5 from hindering the addition of raw materials. At the same time, when the dust inlet pipe 4 is rotated, the support of the dust inlet pipe 4 by the track support column 7 and the steering support track 6 can prevent the dust inlet pipe 4 and the gas collecting hood 5 from tilting to one side due to gravity, avoid bending of the dust collecting pipe 3, and improve the stability of the overall connection structure.

[0025] like Figure 1 - Figure 4 As shown, the steering support track 6 is designed in a disc shape, and the steering support track 6 and the dust collecting pipe 3 share the same central axis. By designing the steering support track 6 in a disc shape, it is convenient to turn the dust inlet pipe 4 together with the gas collecting hood 5 to a direction away from the ore trough of the blast furnace, thereby reducing the obstruction of the dust inlet pipe 4 to the raw material adding operation.

[0026] like Figure 3 and Figure 4 As shown, both inner and outer sides of the lower surface of the steering support track 6 are provided with limiting slide grooves 601, and two L-shaped limiting sliders 8 are fixedly connected to the lower surface of the dust inlet pipe 4, and the two L-shaped limiting sliders 8 are respectively slidably connected to the two limiting slide grooves 601. When the dust inlet pipe 4 is rotated, the connection position between the dust inlet pipe 4 and the steering support track 6 can be kept unchanged when the dust inlet pipe 4 is turned through the cooperation between the L-shaped limiting slider 8 and the limiting slide groove 601, thereby improving the position stability of the dust inlet pipe 4 when turning.

[0027] like Figure 4 As shown, the two L-shaped limit sliders 8 are located above the lower surface of the steering support track 6 on one side away from the dust inlet pipe 4. The bottom surface of the L-shaped limit slider 8 is designed to be above the bottom surface of the steering support track 6, so that when the L-shaped limit slider 8 slides to the position of the track support column 7, the L-shaped limit slider 8 will not contact and collide with the track support column 7, ensuring that the dust inlet pipe 4 can smoothly complete the steering on the steering support track 6.

[0028] like Figure 1 - Figure 3As shown, a plurality of support rods 9 are fixedly connected to the lower surface of the steering support track 6, and the other ends of the plurality of support rods 9 are fixedly connected to the mixing box 1, and the plurality of support rods 9 are respectively located on both sides of the two track support columns 7. The steering support track 6 is further supported by a plurality of support rods 9 on both sides of the two track support columns 7, so as to avoid the dust inlet pipe 4 from bending the steering support track 6, and further improve the structural firmness of the steering support track 6.

[0029] like Figure 1 - Figure 5 As shown, the two track support columns 7 are fixedly connected to the dust collecting pipe 3 on one side thereof, and the two fixed brackets 11 are fixedly connected to the dust collecting pipe 3 on one side thereof, and a rotating power assembly is connected to one side of one of the fixed brackets 11. The dust collecting pipe 3 is connected and fixed to the two track support columns 7 by two fixed brackets 11, so that the dust collecting pipe 3 can be further fixed, the dust collecting pipe 3 can be prevented from shaking, the connection between the dust collecting pipe 3 and the dust inlet pipe 4 can be prevented from loosening, and the stability of the rotational connection between the dust collecting pipe 3 and the dust inlet pipe 4 can be improved.

[0030] like Figure 1 - Figure 5 As shown, the rotary power assembly includes a power motor 12, a driving gear 13 and an outer gear ring 14. The outer wall of the power motor 12 is fixedly connected to the outer wall of the fixed bracket 11 through a connecting seat, the output shaft of the power motor 12 is fixedly connected to the driving gear 13, the outer gear ring 14 is fixedly connected to the dust inlet pipe 4 and sleeved with the dust collecting pipe 3, and the outer gear ring 14 is meshed with the driving gear 13. When the dust inlet pipe 4 needs to be turned, the driving gear 13 is driven to rotate by starting the power motor 12, and then the driving gear 13 drives the dust inlet pipe 4 to rotate and turn through the meshing outer gear ring 14, thereby completing the rotation and displacement of the dust inlet pipe 4 and the air collecting hood 5.

[0031] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that many changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention.

Claims

1. A dust collector for a blast furnace ore trough, comprising a mixing box (1) and a fan (2) mounted on the mixing box (1), a dust collecting pipe (3) being mounted at one end of the air inlet of the fan (2), a dust inlet pipe (4) being mounted at the other end of the dust collecting pipe (3), and a gas collecting hood (5) being mounted at the other end of the dust inlet pipe (4), wherein: The dust collecting pipe (3) is rotatably connected to and communicates with the dust inlet pipe (4) at one end thereof close to the dust inlet pipe (4); a side of the dust inlet pipe (4) close to the mixing box (1) is connected to a steering support assembly; the steering support assembly comprises a steering support track (6) and two track support columns (7); the two track support columns (7) are respectively fixedly connected to both sides of the mixing box (1) close to the end of the dust inlet pipe (4); the sides of the two track support columns (7) away from the mixing box (1) are fixedly connected to the lower surface of the steering support track (6); and the upper surface of the steering support track (6) is slidably connected to the lower surface of the dust inlet pipe (4).

2. A dust collector for a blast furnace ore chute according to claim 1, characterized in that: The steering support track (6) is designed to be disc-shaped, and the steering support track (6) and the dust collecting pipe (3) share the same central axis.

3. A dust collector for a blast furnace ore chute according to claim 2, characterized in that: The inner and outer sides of the lower surface of the steering support track (6) are provided with limiting slide grooves (601), and the lower surface of the dust inlet pipe (4) is fixedly connected with two L-shaped limiting slide blocks (8), and the two L-shaped limiting slide blocks (8) are respectively slidably connected to the two limiting slide grooves (601).

4. A dust collector for a blast furnace ore chute according to claim 3, characterized in that: The sides of the two L-shaped limiting sliding blocks (8) away from the dust inlet pipe (4) are both located above the lower surface of the steering support track (6).

5. A dust collector for a blast furnace ore chute according to claim 2, 3 or 4, characterized in that: A plurality of support rods (9) are fixedly connected to the lower surface of the steering support track (6), the other ends of the plurality of support rods (9) are fixedly connected to the mixing box (1), and the plurality of support rods (9) are respectively located on both sides of the two track support columns (7).

6. A dust collector for a blast furnace ore chute according to claim 1, 2, 3 or 4, characterized in that: The two track support columns (7) are fixedly connected to a fixed bracket (11) on one side close to the dust collecting pipe (3); the two fixed brackets (11) are fixedly connected to the dust collecting pipe (3) on one side close to the dust collecting pipe (3); and one side of one of the fixed brackets (11) is connected to a rotating power assembly.

7. A dust collector for a blast furnace ore chute according to claim 5, characterized in that: The two track support columns (7) are fixedly connected to a fixed bracket (11) on one side close to the dust collecting pipe (3); the two fixed brackets (11) are fixedly connected to the dust collecting pipe (3) on one side close to the dust collecting pipe (3); and one side of one of the fixed brackets (11) is connected to a rotating power assembly.

8. A dust collector for a blast furnace ore chute according to claim 6, characterized in that: The rotary power assembly comprises a power motor (12), a driving gear (13) and an outer gear ring (14); the outer wall of the power motor (12) is fixedly connected to the outer wall of the fixed bracket (11) via a connecting seat; the output shaft of the power motor (12) is fixedly connected to the driving gear (13); the outer gear ring (14) is fixedly connected to the dust inlet pipe (4) and sleeved with the dust collecting pipe (3); and the outer gear ring (14) is meshed with the driving gear (13).

9. A dust collector for a blast furnace ore chute according to claim 7, characterized in that: The rotary power assembly comprises a power motor (12), a driving gear (13) and an outer gear ring (14); the outer wall of the power motor (12) is fixedly connected to the outer wall of the fixed bracket (11) via a connecting seat; the output shaft of the power motor (12) is fixedly connected to the driving gear (13); the outer gear ring (14) is fixedly connected to the dust inlet pipe (4) and sleeved with the dust collecting pipe (3); and the outer gear ring (14) is meshed with the driving gear (13).

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