Apparatus for removing slag

Abstract

The present disclosure relates to a slag removal device for removing slag solidified lumps grown in a slag runner, comprising: a fixed frame spaced apart from the slag runner at a certain distance; a rotating frame rotatably coupled to the fixed frame; a crushing unit coupled to the rotating frame so as to be movable in an up-and-down direction; a first driving unit that rotates the rotating frame so as to position the crushing unit on the solidified lump; and a second driving unit that drops the crushing unit onto the solidified lump to crush the solidified lump.

Description

Technology Field

[0001] The present disclosure relates to a slag removal device capable of remotely removing slag lumps adhering to a hot water tank. Background Technology

[0003] High-temperature slag generated in a smelting furnace is contacted with a large amount of water to be rapidly cooled and crushed into particles. This process is generally called water crushing.

[0004] Generally, a blast furnace that produces molten iron by melting and reducing iron ore discharges molten iron and slag through a tapping channel during the tapping process, and the slag is separated from the molten iron and flows into the stirring tank of the water-quenching facility through a slag runner.

[0005] The water-quenching facility supplies cooling water to the slag flowing into the stirring tank, and the slag rapidly cooled by the cooling water is atomized to produce water-quenched slag.

[0006] However, conventional water-quenching equipment has a problem in which slag adheres and grows into lumps at the ends of the slag runners located at the top of the stirring tank. These adhered slag lumps grow over time and can also adhere inside the stirring tank. In this case, if cooling water comes into contact with the adhered lumps, a steam explosion may occur.

[0007] Therefore, a device capable of periodically removing the aforementioned solidified mass is required. The problem to be solved

[0009] The present disclosure is intended to resolve the aforementioned conventional problems and can effectively remove lumps formed by the adhesion of slag. means of solving the problem

[0011] The present disclosure relates to a slag removal device for removing slag solidified lumps grown in a slag runner, comprising: a fixed frame spaced apart from the slag runner at a certain distance; a rotating frame rotatably coupled to the fixed frame; a crushing unit coupled to the rotating frame so as to be movable in an up-and-down direction; a first driving unit for rotating the rotating frame so as to position the crushing unit on the solidified lump; and a second driving unit for dropping the crushing unit onto the solidified lump to crush the solidified lump.

[0012] In one embodiment, the rotating frame may include a hinge portion rotatably coupled to the fixed frame and a frame body having one side coupled to the hinge portion and the other side coupled to the crushing portion.

[0013] In one embodiment, the frame body may include a guide rail that is arranged vertically to guide the movement path of the crushing part, and a protruding frame that is arranged to protrude outwardly from the bottom of the guide rail and has a guide hole into which the crushing part is inserted.

[0014] In one embodiment, the crushing unit may include a shaft disposed through the guide hole, a crushing head coupled to the lower end of the shaft, and a roller unit coupled to the guide rail so as to be movable along the guide rail and fastened to the shaft.

[0015] In one embodiment, the crushing head may include a plurality of striking protrusions that protrude downward and strike the fixed mass.

[0016] In one embodiment, the apparatus further includes a stopper coupled to the shaft disposed on the upper part of the protruding frame to expand the diameter of the shaft, and the travel distance of the crushing part may be formed to be less than or equal to the distance between the crushing head and the stopper.

[0017] In one embodiment, the roller portion includes a plurality of rollers supporting both sides of the guide rail and a roller frame to which the plurality of rollers are coupled, and the roller frame can be fixedly fastened to the shaft.

[0018] In one embodiment, the device further comprises a chain belt coupled to and rotating with the frame body and a support block attached to the chain belt, wherein the chain belt includes a rising zone arranged parallel to the guide rail, and the support block raises the roller section in the rising zone, and the crushing section may be configured to fall when the support block moves away from the rising zone and is separated from the roller section.

[0019] In one embodiment, the second driving unit is connected to the chain belt and can rotate the chain belt.

[0020] In one embodiment, the second drive unit may be configured to stop the rotation of the chain belt when the sensor detects the roller unit at the top of the rising zone, and further includes a sensor coupled to the frame body to detect the roller unit at the top of the rising zone. Effects of the invention

[0022] The slag removal device according to the embodiment of the present disclosure allows a worker to remotely remove solidified lumps through simple operation, thereby ensuring the worker's safety during the removal of solidified lumps. In addition, work efficiency can be increased because solidified lumps can be removed without closing the slag hot water tube. Brief explanation of the drawing

[0024] FIG. 1 is a perspective view illustrating a slag removal device according to an embodiment of the present disclosure. FIG. 2 is a plan view of FIG. 1. FIG. 3 is a perspective view showing the slag removal device illustrated in FIG. 1 in a rotated state. FIG. 4 is a plan view of FIG. 3, FIG. 5 is a partial enlarged view of FIG. 1, Fig. 6 is a partial enlarged view of Fig. 2. FIGS. 7 to 9 are drawings for explaining the operation of the slag removal device of the present embodiment. Specific details for implementing the invention

[0025] The present invention relates to a device for removing slag solidification lumps that have grown in the slag runner among water-quenching facilities for manufacturing water-quenched slag.

[0027] FIG. 1 is a perspective view illustrating a slag removal device according to an embodiment of the present disclosure, and FIG. 2 is a plan view of FIG. 1. FIG. 3 is a perspective view illustrating a rotated state of the slag removal device illustrated in FIG. 1, and FIG. 4 is a plan view of FIG. 3.

[0028] Referring to FIGS. 1 to 4, the water treatment facility of the present embodiment may include a slag runner (2) for discharging slag generated during a smelting and / or conversion process, and a stirring tank (3) installed below the end of the slag runner (2) to receive the slag discharged from the slag runner (2).

[0029] High-temperature slag falling from the end of the slag channel (2) into the stirring tank (3) comes into contact with cooling water (not shown) supplied from the stirring tank (3) and can be received in the stirring tank (3).

[0031] The slag removal device (1) of the present embodiment is positioned above the slag runner (2) and can remove lump-shaped slag (4, hereinafter referred to as "fixed lump") that is adhered to the end of the slag runner (2).

[0032] To this end, the slag removal device (1) of the present embodiment may include a fixed frame (10), a rotating frame (20), and a crushing unit (50).

[0034] The fixed frame (10) can be fixedly connected to the ground or a structure to support the slag removal device (1) as a whole.

[0035] The fixed frame (10) can be positioned at a certain distance from the slag channel (2). In this embodiment, the fixed frame (10) is formed in the shape of a cylinder, but it can be modified into various shapes as long as it stably supports the rotating frame (20) described later and allows the rotating frame (20) to be rotatably coupled.

[0037] The rotating frame (20) can be rotatably coupled to the fixed frame (10). The rotating frame (20) of the present embodiment may include a hinge portion (21) coupled to the fixed frame (10), a frame body (30) extending from the hinge portion (21), and a crushing portion (50) coupled to one side of the frame body (30).

[0038] The hinge portion (21) may be positioned on the upper part of the fixed frame (10), and its lower part may be connected to the fixed frame (10). The hinge portion (21) may be formed in a cylindrical shape to extend the fixed frame (10), and may be rotated using an axis (R) that is orthogonal to the ground (G) or floor surface where the fixed frame (10) is fixed. Here, the axis (R) may be formed as an axis that vertically penetrates the hinge portion (21) and the fixed frame (10).

[0039] To rotate the hinge portion (21), the hinge portion (21) may include a first driving portion (12). The first driving portion (12) can rotate a rotating frame (20) coupled to a fixed frame (10), and for this purpose, it may include a power device such as a motor, a power transmission device such as a gearbox or a pulley. In this embodiment, various known devices may be optionally used as the power device or power transmission device.

[0040] The first drive unit (12) can be remotely controlled by an operator.

[0042] The frame body (30) can be formed as a frame having an overall rectangular shape, and one side can be connected to the hinge part (21). Accordingly, when the hinge part (21) is rotated, the frame body (30) can rotate together with the hinge part (21).

[0043] A crushing part (50) may be attached to the other side of the frame body (30). To this end, the frame body (30) may be provided with a guide rail (40) to which the crushing part (50) is attached and a guide hole (e.g., 44 in Fig. 5).

[0045] FIG. 5 is a partial enlarged view of FIG. 1, and FIG. 6 is a partial enlarged view of FIG. 2. Referring to FIG. 5 and FIG. 6 together, the guide rail (40) is arranged vertically to guide the movement path of the crushing unit (50). In this embodiment, the roller unit (60) of the crushing unit (50) can be coupled to the guide rail (40) so that it can move. Since the roller unit (60) moves along the guide rail (40), an empty space for the roller unit (60) to move can be provided around the guide rail (40).

[0046] In this embodiment, the guide rail (40) may be formed in the shape of a square pipe, but is not limited thereto and can be modified into various shapes as long as it can guide the movement of the crushing part (50).

[0048] A protruding frame (42) that protrudes in the direction of the outer diameter of the rotation axis (R) may be formed at the bottom of the guide rail (40), and a guide hole (44) may be formed inside the protruding frame (42).

[0049] The guide hole (44) is a through hole that penetrates the protruding frame (42) in the vertical direction and can be used as a hole into which the shaft (51) of the crushing part (50) described later is inserted.

[0050] Additionally, the frame body (30) may include a chain assembly (33) that provides potential energy to the crushing part (50).

[0051] The chain assembly (33) may be positioned inside the frame body (30) and may include an upper wheel (34) and a lower wheel (35) spaced apart in the vertical direction, a chain belt (36) coupled to the upper wheel and the lower wheel (35) and rotating, and a second drive unit (32) that rotates the chain belt (36).

[0052] The upper wheel (34) and the lower wheel (35) may be spaced apart from the guide rail (40) by a certain distance, and the portion of the chain belt (36) facing the guide rail (40) may be positioned parallel to the guide rail (40). In this embodiment, the portion of the chain belt (36) positioned parallel to and facing the guide rail (40) is the section where the chain belt (36) rises, and is referred to as the rising section below.

[0053] The second drive unit (32) can provide rotational force to at least one of the upper wheel (34) and the lower wheel (35) to rotate the chain belt (36). In this embodiment, the chain belt (36) can be rotated so that the portion facing the guide rail (40) is raised. For example, as shown in FIG. 5, when the guide rail (40) is located to the right of the chain belt (36), the chain belt (36) can be rotated counterclockwise. The second drive unit (32) can be driven remotely by an operator.

[0054] At least one support block (37) may be attached to the chain belt (36). Thus, the support block (37) may rotate together with the chain belt (36). The support block (37) may be positioned to protrude outward from the chain belt (36) so as not to interfere with the upper wheel (34) or the lower wheel (35).

[0055] When the support block (37) is located in the aforementioned rising zone, the support block (37) can rise along the chain belt (36), and in this process, the crushing unit (50) can be raised. Specifically, the support block (37) can support the roller unit (60) by coming into contact with it in the rising zone. Accordingly, the crushing unit (50) rises together with the support block (37), and then falls when the support block (37) moves out of the rising zone and becomes separated from the roller unit (60).

[0057] Additionally, the frame body (30) may include a support frame (38) that protrudes toward the fixed frame (10).

[0058] The support frame (38) may protrude from the bottom of the frame body (30) toward the fixed frame (10), and at least one roller may be attached to the end of the support frame (38) to minimize friction between the support frame (38) and the fixed frame (10).

[0059] Since the rotating frame (20) of the present embodiment is coupled only to the fixed frame (10), all load of the rotating frame (20) can be concentrated on the hinge part (21). In this case, the hinge part (21) may be damaged due to excessive load, so the removal device (1) of the present embodiment can distribute the load of the frame body (30) using the support frame (38).

[0061] The crushing unit (50) can be coupled to a rotating frame (20) so that it can move in the up and down direction. When the aforementioned rotating frame (20) rotates and the crushing unit (50) is positioned on the solidified mass (4) as shown in FIG. 3, the crushing unit (50) can fall and crush the solidified mass (4).

[0062] The crushing unit (50) of the present embodiment may include a shaft (51) coupled to the aforementioned guide hole (44), a crushing head (53) coupled to the lower end of the shaft (51), and a roller unit (60) that couples the shaft (51) to the guide rail (40).

[0063] The shaft (51) can be positioned vertically and inserted through the guide hole (44) so ​​as to be able to move up and down in the longitudinal direction.

[0064] A crushing head (53) may be attached to the lower end of the shaft (51). The crushing head (53) may be attached to the shaft (51) at the lower end of the protruding frame (42) in which the guide hole (44) is formed, and may crush the solidified mass (4) by striking it substantially.

[0065] In this embodiment, the crushing head (53) may include a plurality of striking protrusions (54) that protrude downward and strike the solidified mass (4). The striking protrusions (54) may be formed to protrude in a fork shape and may be arranged in a row parallel to the end of the slag channel (2).

[0066] The crushing head (53) can fall at a position very close to the slag runner (2) and crush the solidified mass (4). Also, when the crushing section (50) is lowered to the maximum, the striking projection (54) can be positioned so that at least a portion faces the end of the slag runner (2).

[0067] Since the crushing head (53) is positioned at the bottom of the protruding frame (42), the crushing head (53) can only be moved at the bottom of the protruding frame (42).

[0069] In addition, to define the travel distance of the crushing part (50), a stopper (55) may be attached to the shaft (51). The stopper (55) of this embodiment is attached to the shaft (51) at the top of the protruding frame (42) and can expand the diameter of the shaft (51).

[0070] The outer diameter of the stopper (55) can be formed larger than the inner diameter of the guide hole (44). Accordingly, the stopper (55) cannot pass through the guide hole (44), and the stopper (55) can only move on the upper part of the protruding frame (42).

[0071] Accordingly, the vertical movement of the crushing unit (50) can be suppressed by the crushing head (53) and the stopper (55), and the movement distance of the crushing unit (50) can be formed to be less than the distance between the crushing head (53) and the stopper (55).

[0073] The roller part (60) can be fixedly fastened to the shaft (51) and can be coupled to the guide rail (40) so as to be movable along the guide rail (40).

[0074] The roller section (60) may include a plurality of rollers (62) that support the guide rail (40) and a roller frame (64) to which the plurality of rollers (62) are combined.

[0075] As illustrated in FIG. 6, a plurality of rollers (62) may be distributed on both sides of the guide rail (40) to support both sides of the guide rail (40). For example, the plurality of rollers (62) may include at least one first roller (62a) that rotates while supporting one side of the guide rail (40) and at least one second roller (62b) that rotates while supporting the other side of the guide rail (40). For example, the first roller (62a) may be positioned between the chain belt (36) and the guide rail (40), and the second roller (62b) may be positioned between the shaft (51) and the guide rail (40).

[0076] A plurality of rollers (62) can be coupled to a roller frame (64) so ​​that both ends can rotate. Additionally, the roller frame (64) can be fixedly fastened to a shaft (51). Thus, the roller frame (64) can move up and down together with the shaft (51) in response to the movement of the shaft (51).

[0077] The aforementioned support block (37) can support the roller part (60).

[0078] In the rising section of the chain belt (36), the support block (37) can move by pushing the roller section (60) upward after contacting the roller section (60). Accordingly, the entire crushing section (50) can be raised.

[0079] Since the support block (37) moves along the chain belt (36), at the point where the rising zone ends, it moves to the opposite side along the upper wheel (34) and then descends and moves linearly. Thus, the support block (37) can support the roller section (60) up to the top of the rising zone. Accordingly, when the roller section (60) is located at the very top of the rising zone, it can be understood that the crushing section (50) has risen to its maximum.

[0080] When the crushing section (50) rises to its maximum height, the chain belt (36) can stop rotating, and thus the crushing section (50) can maintain the raised state, that is, the state in which potential energy is increased.

[0081] To this end, a sensor (25) may be provided in the frame body (30). The sensor (25) may be positioned to detect the position of the roller section (60) when the crushing section (50) is raised to its maximum height. Thus, the sensor (25) may be positioned at the very top of the opposing zone to detect the roller section (60).

[0082] When the sensor (25) detects the roller frame (64), the second drive unit (32) can stop the rotation of the chain belt (36). Thus, the crushing unit (50) can wait in a state raised to the maximum.

[0083] In the above state, the second drive unit (32) of the present embodiment can rotate the chain belt (36) in response to the input of the operator. In this case, the support block (37) moves along the shape of the upper wheel (34) and moves out of the rising zone. Accordingly, the support block (37) is separated from the roller frame (64), and the crushing unit (50) falls freely due to its own weight and can crush the solidified mass (4).

[0085] FIGS. 7 to 9 are drawings for explaining the operation of the slag removal device of the present embodiment, and the operation of the slag removal device (1) of the present embodiment is explained by referring to them together.

[0086] As shown in FIG. 1, when a solidified mass (4) grows at the end of the slag channel (2) during normal operation of the water treatment facility, the operator drives the first drive unit (12) of the slag removal device (1) to rotate the rotating frame (20). Accordingly, as shown in FIG. 3, the rotating frame (20) rotates along the rotation axis (R), and the crushing unit (50) can be positioned on the end of the slag channel (2) where the solidified mass is generated. At this time, the crushing unit can maintain a state of maximum elevation as shown in FIG. 3.

[0087] Next, the operator can remotely drive the second drive unit (32) to rotate the chain belt (36). As shown in FIG. 7, the support block (37) moves to the opposite side along the upper wheel (34), and the crushing unit (50) supported by the support block (37) falls due to its own weight and can crush the solidified mass (4).

[0088] Meanwhile, as the chain belt (36) rotates, the support block (37) is positioned at the bottom of the roller section (60) and then rises. As shown in FIG. 8, the support block (37) supports the roller section (60) again during the rising process, and the entire crushing section (50) rises.

[0089] Afterwards, as shown in FIG. 9, when the sensor (25) detects the roller part (60), the second drive part (32) can stop the chain belt (36) from rotating, and the crushing part (50) can wait in a raised position.

[0090] When the solidified mass (4) is sufficiently crushed, the operator can remotely drive the first drive unit (12) to return the rotating frame (20) to its original position. On the other hand, when the solidified mass (4) remains, the operator can remotely drive the second drive unit (32) to repeat the process of dropping / raising the crushing unit (50).

[0092] The slag removal device (1) of the present embodiment configured in this way allows a worker to remotely remove solidified lumps through simple operation, thereby ensuring the worker's safety when removing solidified lumps. In addition, work efficiency can be increased because solidified lumps can be removed without closing the slag hot water pipe.

[0094] Although embodiments of the present invention have been described in detail above, the scope of the present invention is not limited thereto, and it will be obvious to those skilled in the art that various modifications and variations are possible within the scope of the technical concept of the present invention as described in the claims. Explanation of the symbols

[0096] 1: Slag removal device 10: Fixed frame 12: First drive unit 20: Rotating Frame 21: Hinge part 30: Frame body 32: Second drive unit 33: Chain assembly 34: Upper wheel 35: Lower wheel 36: Chain belt 37: Support block 40: Guide rail 50: Crushing section 51: Shaft 53: Shredding head 54: Striking protrusion 55: Stopper 60: Roller section

Claims

Claim 1 A slag removal device for removing slag solidified lumps grown in a slag runner, comprising: a fixed frame spaced apart from the slag runner at a certain distance; a rotating frame rotatably coupled to the fixed frame; a crushing unit coupled to the rotating frame so as to be movable in an up-and-down direction; a first driving unit for rotating the rotating frame so as to position the crushing unit on the solidified lump; and a second driving unit for dropping the crushing unit onto the solidified lump to crush the solidified lump. Claim 2 A slag removal device according to claim 1, wherein the rotating frame comprises: a hinge portion rotatably coupled to the fixed frame; and a frame body having one side coupled to the hinge portion and the other side coupled to the crushing portion. Claim 3 A slag removal device according to paragraph 2, wherein the frame body comprises: a guide rail that is arranged vertically to guide the movement path of the crushing part; and a protruding frame that is arranged to protrude outwardly from the bottom of the guide rail and has a guide hole into which the crushing part is inserted. Claim 4 In paragraph 3, the crushing unit comprises: a shaft disposed through the guide hole; a crushing head coupled to the lower end of the shaft; and a roller unit coupled to the guide rail so as to be movable along the guide rail. Claim 5 In paragraph 4, the crushing head comprises a plurality of striking protrusions that protrude downward and strike the solidified mass, forming a slag removal device. Claim 6 A slag removal device according to claim 4, further comprising a stopper coupled to the shaft disposed on the upper part of the protruding frame to expand the diameter of the shaft, wherein the travel distance of the crushing part is formed to be less than or equal to the distance between the crushing head and the stopper. Claim 7 In paragraph 4, the roller section comprises a plurality of rollers supporting both sides of the guide rail and a roller frame to which the plurality of rollers are joined, and the roller frame is fixedly fastened to the shaft, forming a slag removal device. Claim 8 A slag removal device according to claim 4, further comprising a chain belt coupled to and rotating with the frame body and a support block fastened to the chain belt, wherein the chain belt includes a rising zone arranged parallel to the guide rail, the support block raises the roller section in the rising zone, and the crushing section is configured to fall when the support block moves out of the rising zone and is separated from the roller section. Claim 9 In claim 8, the second drive unit is a slag removal device connected to the chain belt and rotating the chain belt. Claim 10 A slag removal device according to claim 9, further comprising a sensor coupled to the frame body and detecting the roller part at the top of the rising zone, wherein when the sensor detects the roller part, the second drive unit is configured to stop the rotation of the chain belt.

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