A tapping mechanism for an iron-making blast furnace and a method of using the same

Abstract

The present invention discloses a tapping mechanism for an iron-making blast furnace and a method for using the same, comprising a blast furnace base, a blast furnace body, and a tapping port, wherein the blast furnace body is fixedly arranged on the top of the blast furnace base, the tapping port is connected to the front side of the blast furnace body, and the front side of the blast furnace base is fixedly connected to a fixed support seat. The present invention relates to the technical field of iron-making blast furnaces. The tapping mechanism for an iron-making blast furnace and a method for using the same, by arranging a slag filtering and slag collecting mechanism, an anti-caking mechanism, and a regular temporary storage mechanism between the tapping ditch and the fixed support seat, enables the device to continuously filter and salvage the slag in the molten iron inside the tapping ditch through the synchronous coordination of the slag filtering and slag collecting mechanism, the anti-caking mechanism, and the regular temporary storage mechanism during molten iron discharge, thereby avoiding the problem of high molten iron loss caused by the transmission slag ditch slag discharge, and simultaneously crushing the salvaged slag to avoid the slag condensing and agglomerating with each other, which causes inconvenience in subsequent processing.

Description

Technical Field

[0001] The present invention relates to the technical field of iron-making blast furnaces, and in particular to an iron-making blast furnace tapping mechanism and a use method thereof. Background Art

[0002] A blast furnace is a vertical furnace used to smelt molten iron. The blast furnace shell is constructed of steel plates lined with refractory bricks. From top to bottom, the blast furnace consists of five sections: the throat, shaft, waist, bosh, and hearth. Due to its excellent technical and economic performance, simple process, high production volume, high labor efficiency, and low energy consumption, blast furnace ironmaking accounts for the vast majority of global iron production. Iron ore, coke, and slag-forming flux (limestone) are loaded from the top of the blast furnace. Preheated air is blown in through tuyeres located along the furnace's circumference. At high temperatures, the carbon in the coke (some blast furnaces also inject auxiliary fuels such as pulverized coal, heavy oil, or natural gas) burns with oxygen from the blasted air to produce carbon monoxide. As the air rises within the furnace, it removes oxygen, sulfur, and phosphorus from the iron ore, reducing it to iron. The molten iron is then discharged through the taphole.

[0003] Although a large amount of molten iron can be smelted through a blast furnace in the prior art, it is inevitable that there are still some shortcomings in the installation and use process. For example, the error in aligning the iron trough with the iron outlet is high, which leads to the problem of inconvenient installation. In order to avoid such problems, Chinese patent CN113293248B discloses a blast furnace tapping device, which includes a base, the blast furnace is installed on the base, the blast furnace includes an iron outlet arranged at the bottom, the iron tapping device is arranged corresponding to the iron outlet, the iron tapping device includes a support frame and an iron trough fixed on the support frame, a connecting assembly is provided between the base and the support frame, the connecting assembly includes a chute integrally formed with the side wall of the base, the support frame is integrally formed with a connecting plate at one end close to the base, and the connecting plate is slidably connected to the chute. The chute limits the movement of the connecting plate in the horizontal plane, reduces the possibility of the iron trough and the iron outlet not corresponding to each other, and improves the convenience of installing the iron trough.

[0004] Although the above solves the problem that the position of the iron tapping trough and the iron outlet does not correspond to each other and there is a risk of error, which leads to inconvenient installation of the iron tapping trough, it cannot avoid that there are still some shortcomings in the actual use. For example, the iron tapping part of the device lacks a slag filtering mechanism, so that the traditional slag ditch is used for slag discharge, which causes the molten iron to flow with the slag, resulting in a large loss of molten iron. In order to avoid such problems, a iron tapping mechanism for an iron-making blast furnace and a method for using the same are proposed to solve the existing problems. Summary of the Invention

[0005] In response to the deficiencies in the prior art, the present invention provides a tapping mechanism for an iron-making blast furnace and a method for using the same, which solves the problem that the tapping part of the device lacks a slag scooping and filtering mechanism, resulting in the traditional use of slag ditch slag discharge, which causes the molten iron to flow with the slag, resulting in a large loss of molten iron.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: a blast furnace iron-making ...

[0007] Preferably, the slag filtering and slag scooping mechanism includes a slag blocking plate, which is fixedly arranged inside the iron outlet groove, and a plurality of slag filtering through holes are opened on the front side of the slag blocking plate, and both sides of the rear side of the slag blocking plate are fixedly connected to a material guide frame, and one side of the iron outlet groove is fixedly connected to a driving motor through a bracket, and the output shaft of the driving motor is fixedly connected to a reciprocating screw through a coupling, and the surface of the reciprocating screw is threadedly connected to a threaded sleeve, and the bottom of the threaded sleeve is fixedly connected to a limiting sleeve, and the interior of the limiting sleeve is slidably connected to a movable telescopic plate, and the bottom of the movable telescopic plate is fixedly connected to a slag scooping hole plate, and a first reset spring is fixedly connected between the top of the movable telescopic plate and the top of the inner cavity of the limiting sleeve.

[0008] Preferably, the anti-caking mechanism includes a mounting support plate, and the mounting support plates are provided with four, and the four mounting support plates are respectively fixedly arranged on both sides of the slag blocking plate and on the opposite sides of the two guide frames, and a slag aggregate inclined frame is elastically slidably provided between the two mounting support plates on the same side, and a slag discharge port is provided on one side of the slag aggregate inclined frame, and the tops of the two mounting support plates on the same side are connected to a rotating shaft through a bracket and a bearing for common rotation, and one end of the rotating shaft extends to the interior of the slag aggregate inclined frame, and the surface of the rotating shaft is located at the slag aggregate inclined frame. Several crushing cutters are fixedly connected to the inside of the inclined frame, the top of the rotating shaft is fixedly connected to the first bevel gear, and both sides of the surface of the reciprocating screw are fixedly connected to the second bevel gear meshing with the first bevel gear. An annular hollow plate is fixedly connected between the front and rear sides of the inner cavity of the slag aggregate inclined frame through a bracket, and the front and rear sides of the top of the annular hollow plate are fixedly connected to arc-shaped oblique blocks, the surface of the rotating shaft is fixedly connected to a fixed circular plate, and both sides of the bottom of the fixed circular plate are fixedly connected to arc protrusions used in conjunction with the arc-shaped oblique blocks.

[0009] Preferably, the regular temporary storage mechanism includes a slag storage box, two of which are provided, and the two slag storage boxes are respectively fixedly arranged on both sides of the top of the fixed support seat, one side of the inner cavity of the slag storage box is fixedly connected to a receiving plate, the top of the receiving plate is rotatably connected to a rotating shaft through a bearing, one end of the rotating shaft passes through and extends to the bottom of the receiving plate, the end of the rotating shaft extending to the bottom of the receiving plate is fixedly connected to a slag material selection rack, the surface of the rotating shaft is fixedly connected to a first drive sprocket, the surface of the rotating shaft is fixedly connected to a second drive sprocket, and a drive chain is transmission-connected between the second drive sprocket and the first drive sprocket.

[0010] Preferably, the two opposite sides of the mounting support plates on the same side are provided with limiting grooves, the internal sliding connection of the limiting grooves is connected to the limiting sliders, the opposite sides of the two limiting sliders on the same side are respectively fixedly connected to the front and rear sides of the slag aggregate inclined frame, and a second return spring is fixedly connected between the bottom of the limiting slider and the bottom of the inner cavity of the limiting groove.

[0011] Preferably, the top of the slag blocking plate is fixedly connected to a guide slide rod through a bracket, the surface of the guide slide rod is slidably connected to a guide sleeve, and the rear side of the guide sleeve is fixedly connected to the front side of the threaded sleeve through a bracket.

[0012] Preferably, a slag guide inclined plate is fixedly connected between the rear side of the guide frame and the inner wall of the iron outlet channel on the same side.

[0013] Preferably, a cleaning cover is hingedly connected to the front side of the slag temporary storage box via a hinge.

[0014] The present invention also discloses a method for tapping iron from an iron-making blast furnace, which specifically comprises the following steps:

[0015] S1. When in use, the molten iron is guided into the inside of the tapping trough through the tapping hole. As the molten iron flows along the tapping trough, it gradually contacts the slag plate and is filtered and intercepted by the slag plate. Since the slag plate intercepts only the upper layer of the molten iron, the slag layer floating on the upper part of the molten iron will be intercepted by the slag plate, and the remaining molten iron will continue to flow along the bottom of the slag plate;

[0016] S2. When intercepting the slag, the driving motor is started synchronously. After the driving motor is started, the driving motor drives the reciprocating screw to rotate through the output shaft. The threaded sleeve on the surface of the reciprocating screw rotates, and the threaded sleeve cooperates with the thread of the reciprocating screw and the limiting cooperation between the guide slide rod and the guide slide sleeve, so that the threaded sleeve moves back and forth. The movement of the threaded sleeve drives the limiting sleeve, the movable telescopic plate and the slag scooping hole plate to move. During the movement of the slag scooping hole plate, the salvaged slag is gradually pushed to the inclined surface of the material guide frame until the slag falls into the interior of the slag collection inclined frame for the next process;

[0017] S3. The reciprocating screw drives the threaded sleeve to move back and forth, and at the same time, the reciprocating screw also drives the second bevel gear to rotate. The rotation of the second bevel gear will mesh with the adjacent first bevel gear, and through their mutual meshing, the rotating shaft will be synchronously driven to rotate. The rotation of the rotating shaft will drive the crushing tool to crush the slag that falls into the slag aggregate inclined frame to prevent the slag from coagulating and agglomerating.

[0018] The rotation of the rotating shaft will also drive the fixed circular plate to rotate, and the fixed circular plate will drive the arc convex block to rotate. During the rotation of the arc convex block, it will reciprocate with the arc-shaped inclined block to form an extrusion fit, and by squeezing the arc-shaped inclined block, the annular hollow plate will drive the slag aggregate inclined frame to reciprocate and elastically sieve up and down. The sieving movement of the slag aggregate inclined frame will accelerate the slag to fall into the slag storage box for temporary storage;

[0019] S4. When the rotating shaft rotates, the rotating shaft will also drive the second drive sprocket to rotate. The rotation of the second drive sprocket will form a transmission cooperation with the drive chain and the first drive sprocket, and through its transmission cooperation, the rotating shaft will be synchronously driven to rotate. The rotation of the rotating shaft will drive the slag material diverter rack to rotate and stir. The rotation and stirring of the slag material diverter rack will continuously stir the floating slag that falls into the slag material temporary storage box and store it in a regular and flat manner, avoiding the problem of high piles formed by fixed-point storage of slag, resulting in insufficient utilization of the internal space of the slag material temporary storage box.

[0020] Preferably, a plurality of filter holes are provided on the side of the slag scooping hole plate in S2. The filter holes can filter the molten iron to reduce the loss of molten iron.

[0021] The present invention provides a tapping mechanism for an ironmaking blast furnace and a method for using the same. Compared with existing technologies, the present invention has the following advantages:

[0022] (1) The iron-making blast furnace tapping mechanism is provided with a slag filtering and slag collecting mechanism, an anti-caking mechanism and a regular temporary storage mechanism between the tapping ditch and the fixed support seat, so that when the device is discharging molten iron, the slag in the molten iron inside the tapping ditch can be continuously filtered and salvaged through the synchronous coordination of the slag filtering and slag collecting mechanism, the anti-caking mechanism and the regular temporary storage mechanism, so as to avoid the problem of high iron loss caused by the transmission slag ditch slag discharge, and the salvaged slag is crushed at the same time to avoid the problem of mutual coagulation and agglomeration, which causes inconvenience in subsequent processing, and the collected slag is regularly spread at the same time to avoid the problem of slag being collected at a fixed point and easily causing a high pile and insufficient utilization of the internal space of the slag storage box.

[0023] (2) The iron-making blast furnace tapping mechanism is characterized in that a slag gathering inclined frame is elastically arranged between two adjacent mounting support plates, and an annular hollow plate, an arc-shaped inclined block, a fixed circular plate and an arc-shaped protrusion are arranged between the slag gathering inclined frame and the rotating shaft. In this way, during the crushing process, the slag inside the slag gathering inclined frame can also be screened up and down by the coordinated cooperation of the annular hollow plate, the arc-shaped inclined block, the fixed circular plate and the arc-shaped protrusion, thereby accelerating the slag discharge speed.

[0024] (3) The iron-making blast furnace tapping mechanism is configured with a first return spring between the movable telescopic plate and the limiting sleeve, so that the slag scooping hole plate can be closely fitted with the inclined surface of the material guide frame through the tension of the first return spring, so as to enhance the pushing effect of the slag scooping hole plate on the slag material.

[0025] (4) The iron-making blast furnace tapping mechanism is configured to provide a guide slide rod and a guide sleeve on the top of the slag retaining plate, and connect the guide sleeve to the threaded sleeve, so that the threaded sleeve can provide movement stability for the threaded sleeve through the limiting cooperation of the guide slide rod and the guide sleeve during movement. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 Schematic diagram of the external structure of the present invention;

[0027] Figure 2 It is a rear view of the iron tapping channel structure of the present invention;

[0028] Figure 3 Schematic diagram of the filter residue slag removal mechanism structure of the present invention;

[0029] Figure 4 It is a side view of the internal structure of the limiting sleeve of the present invention;

[0030] Figure 5 Schematic diagram of the anti-caking mechanism structure of the present invention;

[0031] Figure 6 It is a side view of the internal structure of the slag aggregate inclined frame of the present invention;

[0032] Figure 7 This is an expanded view of the annular hollow plate and fixed circular plate structure of the present invention;

[0033] Figure 8 This is an expanded view of the annular hollow plate and fixed circular plate structure of the present invention;

[0034] Figure 9 A schematic diagram of the structure of the regular temporary storage mechanism of the present invention;

[0035] Figure 10 For the present invention Figure 9 A partial enlarged view of point A in the middle.

[0036] In the figure: 1. Blast furnace base; 2. Blast furnace body; 3. Iron outlet; 4. Fixed support base; 5. Iron outlet ditch; 6. Slag filtering and slag catching mechanism; 601. Slag blocking plate; 602. Slag filtering hole; 603. Material frame; 604. Driving motor; 605. Reciprocating screw; 606. Threaded sleeve; 607. Limiting sleeve; 608. Movable telescopic plate; 609. Slag catching hole plate; 6091. First return spring; 7. Anti-caking mechanism; 701. Mounting support plate; 702. Slag collecting inclined frame; 703. Slag discharge port; 704. Rotating shaft; 705. Crushing tool ; 706, first bevel gear; 707, second bevel gear; 708, annular hollow plate; 709, arc-shaped oblique block; 7091, fixed circular plate; 7092, arc-shaped protrusion; 8, regular temporary storage mechanism; 801, slag temporary storage box; 802, receiving plate; 803, rotating shaft; 804, slag material feeding rack; 805, first drive sprocket; 806, second drive sprocket; 807, drive chain; 9, limiting slide; 10, limiting slider; 11, second return spring; 12, guide slide bar; 13, guide sleeve; 14, slag guide oblique plate; 15, material cleaning cover. Implementation Method

[0037] The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present invention.

[0038] See also Figure 1-10 The present invention provides a technical solution: a tapping mechanism for an ironmaking blast furnace, comprising a blast furnace base 1, a blast furnace body 2 and a tapping hole 3, wherein the blast furnace body 2 is fixedly arranged on the top of the blast furnace base 1, the tapping hole 3 is connected to the front side of the blast furnace body 2, the front side of the blast furnace base 1 is fixedly connected to a fixed support base 4, and the top of the fixed support base 4 is fixedly connected to an iron tapping groove 5 through a bracket.

[0039] As a preferred embodiment: In order to reduce the loss of molten iron, a slag scooping process is performed on the molten iron. A slag filtering and scooping mechanism 6 is provided inside the iron tapping ditch 5. The slag filtering and scooping mechanism 6 includes a slag blocking plate 601. The slag blocking plate 601 is fixedly arranged inside the iron tapping ditch 5. As a detailed explanation: the bottom of the slag blocking plate 601 does not contact the bottom of the inner cavity of the iron tapping ditch 5. By leaving a reserved space between the slag blocking plate 601 and the iron tapping ditch 5, it is convenient for the slag blocking plate 601 to intercept slag without affecting the normal flow of molten iron. A plurality of filter holes 602 are provided on the front side of the slag retaining plate 601. Both sides of the rear side of the slag retaining plate 601 are fixedly connected to a material guide frame 603. One side of the iron outlet ditch 5 is fixedly connected to a drive motor 604 through a bracket. The output shaft of the drive motor 604 is fixedly connected to a reciprocating screw 605 through a coupling. The surface of the reciprocating screw 605 is threadedly connected to a threaded sleeve 606. The bottom of the threaded sleeve 606 is fixedly connected to a limiting sleeve 607. The interior of the limiting sleeve 607 is slidably connected to a movable telescopic plate 608. The bottom of the movable telescopic plate 608 is fixedly connected to the slag scooping hole plate 609, and the top of the movable telescopic plate 608 and the top of the inner cavity of the limiting sleeve 607 are fixedly connected with a first return spring 6091. By arranging the first return spring 6091 between the movable telescopic plate 608 and the limiting sleeve 607, the slag scooping hole plate 609 can be closely fitted with the inclined surface of the guide frame 603 through the tension of the first return spring 6091, so as to enhance the pushing effect of the slag scooping hole plate 609 on the slag material, and the slag blocking plate 601 The top of the slag blocking plate 601 is fixedly connected to a guide slide bar 12 through a bracket, and a guide sleeve 13 is slidably connected to the surface of the guide slide bar 12, and the rear side of the guide sleeve 13 is fixedly connected to the front side of the threaded sleeve 606 through a bracket. By arranging the guide slide bar 12 and the guide sleeve 13 on the top of the slag blocking plate 601 and connecting the guide sleeve 13 to the threaded sleeve 606, the threaded sleeve 606 can provide movement stability for the threaded sleeve 606 during movement through the limited cooperation of the guide slide bar 12 and the guide sleeve 13;

[0040] Furthermore, in order to facilitate the guidance of the slag to be concentrated on the slag blocking plate 601 , a slag guide inclined plate 14 is fixedly connected between the rear side of the guide frame 603 on the same side and the inner wall of the iron outlet channel 5 .

[0041] As a preferred embodiment: in order to prevent the slag from agglomerating with each other, which makes it difficult to handle later, an anti-caking mechanism 7 is provided between the slag filtering and slag collecting mechanism 6 and the iron outlet groove 5, and the anti-caking mechanism 7 includes a mounting support plate 701, and four mounting support plates 701 are provided, and the four mounting support plates 701 are respectively fixedly provided on both sides of the slag blocking plate 601 and on the opposite side of the two guide frames 603, and a slag aggregate inclined frame 702 is elastically slidingly provided between the two mounting support plates 701 on the same side, and a slag discharge port 703 is provided on one side of the slag aggregate inclined frame 702, and the tops of the two mounting support plates 701 on the same side are connected to a rotating shaft 704 through a bracket and a bearing for common rotation, and one end of the rotating shaft 704 extends to the inside of the slag aggregate inclined frame 702, and a plurality of crushing tools 705 are fixedly connected to the surface of the rotating shaft 704 and located inside the slag aggregate inclined frame 702. The top of 04 is fixedly connected to the first bevel gear 706, and both sides of the surface of the reciprocating screw 605 are fixedly connected to the second bevel gear 707 meshing with the first bevel gear 706. An annular hollow plate 708 is fixedly connected between the front and rear sides of the inner cavity of the slag aggregate inclined frame 702 through a bracket, and the front and rear sides of the top of the annular hollow plate 708 are fixedly connected to the arc inclined block 709. The surface of the rotating shaft 704 is fixedly connected to a fixed circular plate 7091, and both sides of the bottom of the fixed circular plate 7091 are fixedly connected to arc protrusions 7092 used in conjunction with the arc inclined block 709. As a detailed explanation: the outer edges of both sides of the arc inclined block 709 are provided with arc fillets. By setting the fillets, the extrusion contact between the arc inclined block 709 and the arc protrusion 7092 can be smoother, thereby avoiding the problem of excessive fluctuation in the fit between the arc inclined block 709 and the arc protrusion 7092;

[0042] As a detailed explanation: the two mounting support plates 701 on the same side are provided with a limit slot 9 on the opposite side, and the internal sliding connection of the limit slot 9 is a limit slider 10, and the two limit sliders 10 on the same side are fixedly connected to the front and rear sides of the slag aggregate inclined frame 702 on the opposite side, respectively. A second return spring 11 is fixedly connected between the bottom of the limit slider 10 and the bottom of the inner cavity of the limit slot 9. As a detailed explanation: by elastically setting the slag aggregate inclined frame 702 between the two adjacent mounting support plates 701, the slag aggregate inclined frame 702 is fixedly connected to the front and rear sides of the slag aggregate inclined frame 702. Frame 702, and an annular hollow plate 708, an arc-shaped inclined block 709, a fixed circular plate 7091 and an arc-shaped protrusion 7092 are set between the slag aggregation inclined frame 702 and the rotating shaft 704, so that the slag inside the slag aggregation inclined frame 702 can also be screened up and down through the coordinated cooperation of the annular hollow plate 708, the arc-shaped inclined block 709, the fixed circular plate 7091 and the arc-shaped protrusion 7092 during the crushing process, thereby accelerating the slag discharge speed.

[0043] As a preferred embodiment: In order to avoid the formation of high piles of slag, which makes it difficult to fully utilize the internal space of the slag storage box 801, a regular temporary storage mechanism 8 is provided between the anti-caking mechanism 7 and the fixed support seat 4. The regular temporary storage mechanism 8 includes a slag storage box 801. There are two slag storage boxes 801, and the two slag storage boxes 801 are respectively fixed on both sides of the top of the fixed support seat 4. One side of the inner cavity of the slag storage box 801 is fixedly connected with a receiving plate 802, and the top of the receiving plate 802 is rotatably connected through a bearing. There is a rotating shaft 803, one end of the rotating shaft 803 passes through and extends to the bottom of the receiving plate 802, and the end of the rotating shaft 803 extending to the bottom of the receiving plate 802 is fixedly connected to the slag material selection rack 804, the surface of the rotating shaft 803 is fixedly connected to the first drive sprocket 805, and the surface of the rotating shaft 704 is fixedly connected to the second drive sprocket 806. The second drive sprocket 806 and the first drive sprocket 805 are connected by a drive chain 807, and the front side of the slag storage box 801 is hinged with a cleaning cover 15 through a hinge.

[0044] The present invention also discloses a method for tapping iron from an iron-making blast furnace, which specifically comprises the following steps:

[0045] S1. During use, molten iron is guided into the inside of the tapping ditch 5 through the tapping hole 3. As the molten iron flows along the tapping ditch 5, it gradually contacts the slag plate 601 and is filtered and intercepted by the slag plate 601. Since the interception height of the slag plate 601 is only at the upper layer of the molten iron, the slag layer floating on the upper part of the molten iron will be intercepted by the slag plate 601, and the remaining molten iron will continue to flow along the bottom of the slag plate 601.

[0046] S2. When intercepting slag, the drive motor 604 is started synchronously. After the drive motor 604 is started, the drive motor 604 drives the reciprocating screw 605 to rotate through the output shaft. The threaded sleeve 606 on the surface of the reciprocating screw 605 rotates, and the threaded sleeve 606 is matched with the thread of the reciprocating screw 605, and the guide slide 12 and the guide slide sleeve 13 are limited. The threaded sleeve 606 moves back and forth, and the movement of the threaded sleeve 606 drives the limiting sleeve 607, the movable telescopic plate 608 and the slag scooping hole plate 609 to move. During the movement of the slag scooping hole plate 609, the salvaged slag will be gradually pushed to the inclined surface of the guide frame 603 until the slag falls into the inside of the slag collection inclined frame 702 for the next process. The side of the slag scooping hole plate 609 is provided with a plurality of filter holes. The filter holes can filter the salvaged slag into molten iron to reduce molten iron loss.

[0047] S3. The reciprocating screw 605 rotates to drive the threaded sleeve 606 to move back and forth. At the same time, the reciprocating screw 605 also drives the second bevel gear 707 to rotate. The rotation of the second bevel gear 707 will mesh with the adjacent first bevel gear 706, and through their mutual meshing, the rotating shaft 704 is synchronously driven to rotate. The rotation of the rotating shaft 704 will drive the crushing tool 705 to crush the slag that falls into the slag gathering inclined frame 702 to prevent the slag from coagulating and agglomerating.

[0048] The rotation of the rotating shaft 704 also drives the fixed circular plate 7091 to rotate, and the fixed circular plate 7091 drives the arc convex block 7092 to rotate. During the rotation process, the arc convex block 7092 forms a reciprocating extrusion fit with the arc-shaped inclined block 709, and by squeezing the arc-shaped inclined block 709, the annular hollow plate 708 drives the slag collection inclined frame 702 to reciprocate and elastically sieve up and down. The sieving movement of the slag collection inclined frame 702 accelerates the slag to fall into the slag temporary storage box 801 for temporary storage.

[0049] S4. When the rotating shaft 704 rotates, the rotating shaft 704 will also drive the second drive sprocket 806 to rotate. The rotation of the second drive sprocket 806 will form a transmission coordination with the drive chain 807 and the first drive sprocket 805, and through its transmission coordination, the rotating shaft 803 will be synchronously driven to rotate. The rotation of the rotating shaft 803 will drive the slag material diverter rack 804 to rotate and stir. The rotation and stirring of the slag material diverter rack 804 will continuously stir the slag that falls into the slag material temporary storage box 801 and store it in a regular and flat manner, so as to avoid the problem that the slag material is easily stored at a fixed point and forms a high pile, resulting in insufficient utilization of the internal space of the slag material temporary storage box 801.

[0050] At the same time, the contents not described in detail in this specification belong to the prior art known to those skilled in the art. The above embodiments are only used to illustrate the present invention and are not intended to limit the technical solutions described in the present invention. Although this specification has described the present invention in detail with reference to the above embodiments, the present invention is not limited to the above specific embodiments. Therefore, any modification or equivalent replacement of the present invention; and all technical solutions and improvements that do not depart from the spirit and scope of the invention are included in the scope of the claims of the present invention.

[0051] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A tapping mechanism for an ironmaking blast furnace, comprising a blast furnace base (1), a blast furnace body (2) and a tapping hole (3), wherein the blast furnace body (2) is fixedly arranged on the top of the blast furnace base (1), and the tapping hole (3) is connected to the front side of the blast furnace body (2), characterized in that: The front side of the blast furnace base (1) is fixedly connected to a fixed support seat (4), the top of the fixed support seat (4) is fixedly connected to a tapping ditch (5) via a bracket, a slag filtering and slag collecting mechanism (6) is provided inside the tapping ditch (5), an anti-caking mechanism (7) is provided between the slag filtering and slag collecting mechanism (6) and the tapping ditch (5), and a regular temporary storage mechanism (8) is provided between the anti-caking mechanism (7) and the fixed support seat (4); The slag filtering and slag scooping mechanism (6) comprises a slag blocking plate (601), the slag blocking plate (601) is fixedly arranged inside the iron outlet trough (5), a plurality of slag filtering through holes (602) are opened on the front side of the slag blocking plate (601), both sides of the rear side of the slag blocking plate (601) are fixedly connected to a material guide frame (603), one side of the iron outlet trough (5) is fixedly connected to a driving motor (604) via a bracket, and the output shaft of the driving motor (604) is fixedly connected to a reciprocating screw (603) via a coupling. 05), the surface of the reciprocating screw (605) is threadedly connected to a threaded sleeve (606), the bottom of the threaded sleeve (606) is fixedly connected to a limiting sleeve (607), the interior of the limiting sleeve (607) is slidably connected to a movable telescopic plate (608), the bottom of the movable telescopic plate (608) is fixedly connected to a slag scooping hole plate (609), and a first return spring (6091) is fixedly connected between the top of the movable telescopic plate (608) and the top of the inner cavity of the limiting sleeve (607); The anti-caking mechanism (7) includes a mounting support plate (701), four mounting support plates (701) are provided, and the four mounting support plates (701) are respectively fixedly provided on both sides of the slag blocking plate (601) and on the opposite sides of the two guide frames (603), a slag aggregate inclined frame (702) is elastically slidably provided between the two mounting support plates (701) on the same side, a slag discharge opening (703) is provided on one side of the slag aggregate inclined frame (702), the tops of the two mounting support plates (701) on the same side are connected to a rotating shaft (704) through a bracket and a bearing for common rotation, and one end of the rotating shaft (704) extends to the inside of the slag aggregate inclined frame (702), and the surface of the rotating shaft (704) is located on the slag aggregate inclined frame (702). A plurality of crushing cutters (705) are fixedly connected to the interior of the rotating shaft (704), a first bevel gear (706) is fixedly connected to the top end of the rotating shaft (704), and second bevel gears (707) meshing with the first bevel gear (706) are fixedly connected to both sides of the surface of the reciprocating screw (605). An annular hollow plate (708) is fixedly connected between the front and rear sides of the inner cavity of the slag aggregate inclined frame (702) via a bracket, and an arc-shaped inclined block (709) is fixedly connected to the front and rear sides of the top of the annular hollow plate (708). A fixed circular plate (7091) is fixedly connected to the surface of the rotating shaft (704), and arc-shaped protrusions (7092) used in conjunction with the arc-shaped inclined block (709) are fixedly connected to both sides of the bottom of the fixed circular plate (7091); The regular temporary storage mechanism (8) comprises a slag temporary storage box (801), two slag temporary storage boxes (801) are provided, and the two slag temporary storage boxes (801) are respectively fixedly arranged on both sides of the top of the fixed support seat (4), one side of the inner cavity of the slag temporary storage box (801) is fixedly connected to a receiving plate (802), the top of the receiving plate (802) is rotatably connected to a rotating shaft (803) through a bearing, one end of the rotating shaft (803) passes through and extends to the bottom of the receiving plate (802), the end of the rotating shaft (803) extending to the bottom of the receiving plate (802) is fixedly connected to a slag material shifting frame (804), the surface of the rotating shaft (803) is fixedly connected to a first driving sprocket (805), the surface of the rotating shaft (704) is fixedly connected to a second driving sprocket (806), and a driving chain (807) is transmission-connected between the second driving sprocket (806) and the first driving sprocket (805).

2. The iron-making blast furnace tapping mechanism according to claim 1, characterized in that: The two mounting support plates (701) on the same side are provided with a limiting chute (9) on the opposite side, and the limiting slide block (10) is connected to the inner sliding of the limiting slide block (9). The two limiting slide blocks (10) on the same side are fixedly connected to the front and rear sides of the slag aggregate inclined frame (702) on the opposite side, respectively, and a second return spring (11) is fixedly connected between the bottom of the limiting slide block (10) and the bottom of the inner cavity of the limiting slide block (9).

3. The iron-making blast furnace tapping mechanism according to claim 2, characterized in that: The top of the slag blocking plate (601) is fixedly connected to a guide slide rod (12) via a bracket, the surface of the guide slide rod (12) is slidably connected to a guide sleeve (13), and the rear side of the guide sleeve (13) is fixedly connected to the front side of the threaded sleeve (606) via a bracket.

4. The iron-making blast furnace tapping mechanism according to claim 3, characterized in that: A slag guide inclined plate (14) is fixedly connected between the rear side of the guide frame (603) on the same side and the inner wall of the iron outlet channel (5).

5. The iron-making blast furnace tapping mechanism according to claim 4, characterized in that: The front side of the slag temporary storage box (801) is hinged with a cleaning cover (15) via a hinge.

6. A method for tapping iron from an iron-making blast furnace, using the iron-making blast furnace tapping mechanism according to claim 5, characterized in that: The specific steps include: S1. When in use, the molten iron is guided to the inside of the iron outlet (5) through the iron outlet (3). When the molten iron flows along the iron outlet (5), it gradually contacts the slag plate (601) and is filtered and intercepted by the slag plate (601). Since the interception height of the slag plate (601) is only at the upper layer of the molten iron, the slag layer floating on the upper part of the molten iron will be intercepted by the slag plate (601), and the remaining molten iron will continue to flow along the bottom of the slag plate (601); S2, when intercepting the slag, the driving motor (604) is started synchronously. After the driving motor (604) is started, the driving motor (604) drives the reciprocating screw (605) to rotate through the output shaft. The threaded sleeve (606) on the surface of the reciprocating screw (605) rotates, and the threaded sleeve (606) is matched with the thread of the reciprocating screw (605) and the limiting match of the guide slide (12) and the guide slide sleeve (13), so as to cause the threaded sleeve (606) to move back and forth. The movement of the threaded sleeve (606) drives the limiting sleeve (607), the movable telescopic plate (608) and the slag scooping hole plate (609) to move. During the movement of the slag scooping hole plate (609), the salvaged slag is gradually pushed onto the inclined surface of the guide frame (603) until the slag falls into the interior of the slag collection inclined frame (702) for the next process; S3. The reciprocating screw (605) rotates to drive the threaded sleeve (606) to move back and forth. The reciprocating screw (605) also drives the second bevel gear (707) to rotate. The rotation of the second bevel gear (707) engages with the adjacent first bevel gear (706). The mutual engagement synchronously drives the rotation of the rotating shaft (704). The rotation of the rotating shaft (704) drives the crushing tool (705) to crush the slag that falls into the slag gathering inclined frame (702) to prevent the slag from condensing and agglomerating. The rotation of the rotating shaft (704) also drives the fixed circular plate (7091) to rotate, and the fixed circular plate (7091) drives the arc convex block (7092) to rotate. During the rotation process, the arc convex block (7092) forms a reciprocating extrusion fit with the arc-shaped inclined block (709). By squeezing the arc-shaped inclined block (709), the annular hollow plate (708) drives the slag aggregate inclined frame (702) to reciprocate and elastically sieve up and down. The sieving movement of the slag aggregate inclined frame (702) accelerates the slag to fall into the slag temporary storage box (801) for temporary storage. S4. The rotating shaft (704) rotates and the rotating shaft (704) also drives the second drive sprocket (806) to rotate. The rotation of the second drive sprocket (806) forms a transmission match with the drive chain (807) and the first drive sprocket (805). Through the transmission match, the rotating shaft (803) is synchronously driven to rotate. The rotation of the rotating shaft (803) drives the slag material shifting rack (804) to rotate and stir. The rotation and stirring of the slag material shifting rack (804) continuously stirs the slag falling into the slag material temporary storage box (801) and stores it in a regular and flat manner, thereby avoiding the problem that the slag material is easily stored at a fixed point and easily forms a high pile, resulting in insufficient utilization of the internal space of the slag material temporary storage box (801).

7. The method for tapping iron from an ironmaking blast furnace according to claim 6, wherein: A plurality of filter holes are provided on the side of the slag scooping hole plate (609) in S2. The filter holes can filter the molten iron to reduce the loss of molten iron.

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