Blocking device for furnace eye of holding furnace

Abstract

The invention belongs to the technical field of fixed holding furnaces, and particularly relates to a plugging device for a holding furnace hearth. The plugging device for the hearth of the holding furnace comprises a plug rod and a plug rod, the sleeve rod is arranged on the plug rod in a sleeving mode and can move in the axial direction of the plug rod; the first plug is connected with the loop bar; the second plug comprises a top cover, a connecting assembly and a plurality of umbrella ribs, the top cover is connected with the plug rod, one ends of the umbrella ribs are hinged to the top cover, the other ends of the umbrella ribs are hinged to the connecting assembly, the connecting assembly is located between the top cover and the sleeve rod, and the connecting assembly can move in the axial direction of the plug rod and can be switched between the first position and the second position; when the connecting assembly is located at the first position, the umbrella ribs are in a folded state, and when the connecting assembly is located at the second position, the umbrella ribs are in an unfolded state.

Description

Technical Field

[0001] The present application belongs to the technical field of fixed mixing furnaces, and in particular relates to a plugging device for a furnace eye of a mixing furnace. Background Art

[0002] The fixed mixing furnace is the basic equipment of the casting process. Its main function is to store, clarify and evenly mix the aluminum liquid. At the same time, it can modulate different alloys according to actual needs to prepare for casting. Therefore, the furnace eye of the fixed mixing furnace needs to be blocked when it is static and mixed. When starting to cast aluminum ingots, the furnace eye needs to be opened to discharge the mixed aluminum liquid in the furnace from the furnace eye and drain it to the casting mold through the chute.

[0003] In the related art, tools are used to manually seal the furnace eye. During the sealing process, a long steel rod with a plug is manually operated to push the plug axially into the furnace eye. After the plug is tightly plugged, the outer end of the long rod is fixed with a top plate and a clamping plate. However, since the pressure of the aluminum liquid exerts continuous outward pressure on the plug, if the locking device is loose, it is easy to cause an aluminum liquid leakage accident. Summary of the invention

[0004] In order to solve the above technical problems, the present invention provides a plugging device for the furnace eye of a mixing furnace, aiming to at least solve the technical problems of complex furnace eye plugging operation, high safety risks and easy loosening of the plug to a certain extent.

[0005] The technical solution of the present invention is:

[0006] A plugging device for a furnace eye of a mixing furnace comprises: a plug rod; a sleeve rod, which is sleeved on the plug rod and can move along the axial direction of the plug rod; a first plug, which is connected to the sleeve rod; a second plug, which comprises: a top cover, a connecting assembly and a plurality of ribs, wherein the top cover is connected to the plug rod, one end of a plurality of ribs is hinged to the top cover, and the other end is hinged to the connecting assembly, the connecting assembly is located between the top cover and the sleeve rod, the connecting assembly can move along the axial direction of the plug rod and switch between a first position and a second position; wherein, when the connecting assembly is located at the first position, the plurality of ribs are in a folded state, and when the connecting assembly is located at the second position, the plurality of ribs are in an expanded state.

[0007] In some embodiments, the first plug is provided with a vent hole penetrating the first plug, and the plugging device for the eye of the mixing furnace further includes: a vent pipe connected to the vent hole and located at the end of the first plug away from the second plug.

[0008] In some embodiments, the plugging device of the hybrid furnace eye also includes: a first high temperature resistant component, which is laid on the end surface of the first plug facing the second plug; and a second high temperature resistant component, which is laid on the top cover and the plurality of ribs.

[0009] In some embodiments, when the connecting assembly is located at the second position, the distance between the first plug and the end of the rib facing away from the top cover is less than or equal to the length of the furnace eye.

[0010] In some embodiments, when the connecting assembly is in the first position, the cross-sectional area of the second plug is smaller than the area of the furnace eye, and when the connecting assembly is in the second position, the cross-sectional area of the second plug is larger than the area of the furnace eye.

[0011] In some embodiments, the connecting assembly includes: a slip ring, which is slidably mounted on the plug rod and is located between the sleeve rod and the top cover; a plurality of connecting rods, which correspond to the plurality of ribs one by one, and one end of the connecting rod is hinged to the slip ring, and the other end is hinged to the corresponding rib; a reset member, which is mounted on the plug rod, one end of the reset member is connected to the top cover, and the other end is connected to the slip ring; wherein, when the connecting assembly is located at the first position, the reset member is in an extended state, and when the connecting assembly is located at the second position, the reset member is in a compressed state, and the slip ring is in conflict with the sleeve rod.

[0012] In some embodiments, the plugging device of the hybrid furnace eye also includes: a first driving member connected to the plug rod; a second driving member connected to the sleeve rod; wherein the first plug is located between the first driving member and the top cover, and the second driving member is located between the first driving member and the first plug.

[0013] In some embodiments, the end surface of the first driving member facing the second driving member is a first inclined surface, and the end surface of the second driving member facing the first driving member is a second inclined surface. The sealing device of the mixing furnace eye also includes: a limit member, with two ends respectively embedded in the first inclined surface and the second inclined surface.

[0014] In some embodiments, the umbrella ribs are provided with slide rails, and the connecting assembly includes: a bearing having an inner ring and an outer ring, the inner ring being sleeved on a plug rod and threadedly connected to the plug rod, and the inner ring being connected to the sleeve rod; a plurality of sliders being provided on the outer ring, the plurality of sliders corresponding to the plurality of umbrella ribs one by one, and the sliders being slidably provided in the slide rails of the corresponding umbrella ribs.

[0015] In some embodiments, the plugging device of the furnace eye of the mixing furnace also includes: a third driving member connected to the plug rod; a ring gear provided on the circumferential surface of the sleeve rod; and a driving gear meshing with the ring gear; wherein the length of the ring gear is greater than the length of the furnace eye, the first plug is located between the third driving member and the top cover, and the ring gear is located between the third driving member and the first plug.

[0016] The beneficial effects of the present invention include at least:

[0017] Since the sleeve rod is sleeved on the plug rod and can move along the axial direction of the plug rod, and the first plug is connected to the sleeve rod, the sleeve rod can drive the first plug to move along the axial direction of the plug rod.

[0018] Since the second plug includes: a top cover, a connecting assembly and a plurality of ribs, the top cover is connected to the plug rod, one end of the plurality of ribs is hinged to the top cover, and the other end is hinged to the connecting assembly, the connecting assembly is located between the top cover and the sleeve rod, the connecting assembly can move along the axial direction of the plug rod, and switch between a first position and a second position, when the connecting assembly is located at the first position, the plurality of ribs are in a folded state, and when the connecting assembly is located at the second position, the plurality of ribs are in an expanded state, therefore, when the furnace eye is to be plugged, the sleeve rod is operated on the plug rod to make the sleeve rod move in a direction away from the top cover, at this time, the connecting assembly is located in the first position, the plurality of ribs are in a folded state, and then the second plug is sent into the mixing furnace through the furnace eye as a whole through the plug rod, the sleeve rod is operated on the plug rod to make the sleeve rod move in the direction of the top cover, at this time, the connecting assembly is located in the second position, the plurality of ribs are in an expanded state, and the furnace eye is plugged. The plug rod is pulled outside the mixing furnace, and the plug rod drives the multiple umbrella ribs to move toward the inner wall of the mixing furnace through the top cover, so that the multiple umbrella ribs are in conflict with the inner wall of the mixing furnace, naturally forming a locking structure, and preventing the second plug from loosening due to the pressure of the aluminum liquid, so that the second plug can block the furnace eye, and, since the aluminum liquid in the mixing furnace strongly acts on the multiple umbrella ribs in the expanded state, the umbrella ribs can be firmly in conflict with the furnace wall of the mixing furnace, to ensure that the second plug can completely block the furnace eye, and when the sleeve rod moves toward the direction of the top cover, the sleeve rod will drive the first plug to move in the direction of the furnace eye, so that part of the first plug is stuck in the furnace eye, and the other part of the first plug is in conflict with the outer wall of the mixing furnace, thereby achieving the blocking of the furnace eye. Under the action of the first plug and the second plug, a two-stage blocking is achieved, which can avoid the accident of aluminum liquid leakage and ensure the blocking effect of the furnace eye.

[0019] When the furnace eye needs to be unsealed, operate the plug rod to move the plug rod into the mixing furnace, and the top cover will drive the multiple ribs to separate from the furnace wall of the mixing furnace. At this time, the connecting assembly is in the first position, so that the multiple ribs are in a folded state, and the aluminum liquid will first fill the furnace eye, and will be intercepted by the second plug to avoid aluminum liquid splashing and ensure safety. Then, slowly pull the plug rod and the sleeve rod out of the furnace eye, so that the first plug and the second plug are both out of the furnace eye, which can ensure that the aluminum liquid flows safely and stably into the chute. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] To more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the drawings in the following description are some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0021] Figure 1 It is a schematic diagram of the unblocked furnace eye of the plugging device for the furnace eye of the mixing furnace in some embodiments;

[0022] Figure 2 It is a schematic diagram of the plugged furnace eye of the plugging device for the furnace eye of the mixing furnace in some embodiments;

[0023] Figure 3 It is a first schematic diagram of the umbrella ribs of the plugging device for the furnace eye of the mixing furnace in some embodiments in the deployed state;

[0024] Figure 4 For Figure 3 It is a first schematic diagram of the umbrella ribs of the plugging device for the furnace eye of the mixing furnace in

[0025] Figure 5 For Figure 3 It is a schematic diagram of the arrangement of the ventilation holes of the plugging device for the furnace eye of the mixing furnace in

[0026] Figure 6 It is a first schematic diagram of the umbrella ribs of the plugging device for the furnace eye of the mixing furnace in some embodiments in the retracted state;

[0027] Figure 7 It is a second schematic diagram of the umbrella ribs of the plugging device for the furnace eye of the mixing furnace in some embodiments in the deployed state;

[0028] Figure 8 For Figure 7 It is a second schematic diagram of the umbrella ribs of the plugging device for the furnace eye of the mixing furnace in

[0029] Figure 9 It is a second schematic diagram of the umbrella ribs of the plugging device for the furnace eye of the mixing furnace in some embodiments in the retracted state.

[0030] In the drawings:

[0031] Plug rod 10;

[0032] Sleeve rod 20;

[0033] First plug 30, ventilation hole 31;

[0034] The second plug 40, the top cover 41, the connecting component 42, the slip ring 421, the connecting rod 422, the reset member 423, the bearing 424, the driving rod 425, the connecting cylinder 426, the slider 427, the slide rail 428, the umbrella ribs 43;

[0035] The ventilation pipe 50;

[0036] The first driving member 60;

[0037] The second driving member 70;

[0038] The limiting member 80;

[0039] The third driving member 90;

[0040] The gear ring 100;

[0041] The driving gear 110;

[0042] The chute 120. Specific embodiments

[0043] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present invention.

[0044] It should be noted that all directional indications in the embodiments of the present invention are only used to explain the relative positional relationship and movement conditions between components in a specific posture. If this specific posture changes, then the directional indication also changes accordingly.

[0045] In the present invention, unless otherwise clearly defined and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two components or the interaction relationship between two components, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0046] In addition, in the present invention, descriptions such as "first" and "second" are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one such feature. Additionally, the technical solutions between various embodiments may be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0047] In the related art, the tool for plugging the furnace eye used in the aluminum ingot casting workshop is a cylindrical plug rod, with a conical plug head installed at the front end of the plug rod and covered with a conical cap made of asbestos material. When plugging the furnace eye, the operator axially inserts the plug rod into the furnace eye from outside the mixing furnace; due to the relatively high pressure of the molten aluminum in the furnace and the irregular shape of the furnace eye opening, when the plug head is inserted into the furnace eye, the surrounding gaps cannot be completely filled, and at this time, molten aluminum still seeps out from the edge. It is necessary for the operator to further rotate, squeeze, and even use a hammer to strike the plug rod to make the plug head and the cap fill the furnace eye more tightly, so as to completely block the furnace eye. After completing the plugging of the furnace eye, in order to prevent the molten aluminum from flushing open the plug head, the plug rod needs to be stuck in the locking device. Therefore, the current method of plugging the furnace eye is complex in operation, prone to leakage and unsealing accidents, and there are great potential safety hazards.

[0048] Based on the above technical problems, the present application provides a plugging device for the furnace eye of a mixing furnace, which realizes two-stage plugging of the furnace eye through a first plug head and a second plug head to ensure complete plugging of the furnace eye. Now, with the aid of the drawings, the specific details of the plugging device for the furnace eye of the mixing furnace will be further described.

[0049] Combined Figure 1 、 Figure 2 、 Figure 3 、 Figure 6 、 Figure 7 and Figure 9 The plugging device for the furnace eye of the mixing furnace in the embodiment of the present application includes: a plug rod 10, a sleeve rod 20, a first plug head 30, and a second plug head 40. The sleeve rod 20 is sleeved on the plug rod 10 and can move axially along the plug rod 10. The first plug head 30 is connected to the sleeve rod 20. The second plug head 40 includes: a top cover 41, a connecting component 42, and a plurality of umbrella ribs 43. The top cover 41 is connected to the plug rod 10. One end of each of the plurality of umbrella ribs 43 is hinged to the top cover 41, and the other end is hinged to the connecting component 42. The connecting component 42 is located between the top cover 41 and the sleeve rod 20. The connecting component 42 can move axially along the plug rod 10 and switch between a first position and a second position. Among them, when the connecting component 42 is in the first position, the plurality of umbrella ribs 43 are in a retracted state, and when the connecting component 42 is in the second position, the plurality of umbrella ribs 43 are in an unfolded state.

[0050] Since the sleeve rod 20 is sleeved on the plug rod 10 and can move axially along the plug rod 10 , and the first plug 30 is connected to the sleeve rod 20 , the sleeve rod 20 can drive the first plug 30 to move axially along the plug rod 10 .

[0051] Since the second plug 40 includes: a top cover 41, a connecting assembly 42 and a plurality of ribs 43, the top cover 41 is connected to the plug rod 10, one end of the plurality of ribs 43 is hinged to the top cover 41, and the other end is hinged to the connecting assembly 42, the connecting assembly 42 is located between the top cover 41 and the sleeve rod 20, the connecting assembly 42 can move along the axial direction of the plug rod 10, and switch between a first position and a second position, when the connecting assembly 42 is located in the first position, the plurality of ribs 43 are in a retracted state, and when the connecting assembly 42 is located in the second position , the plurality of ribs 43 are in the expanded state. Therefore, when the furnace eye is to be blocked, the sleeve rod 20 is operated on the plug rod 10 so that the sleeve rod 20 moves in the direction away from the top cover 41. At this time, the connecting assembly 42 is in the first position, and the plurality of ribs 43 are in the closed state. Then, the second plug 40 is sent into the mixing furnace through the furnace eye as a whole through the plug rod 10, and the sleeve rod 20 is operated on the plug rod 10 so that the sleeve rod 20 moves in the direction of the top cover 41. At this time, the connecting assembly 42 is in the second position. The plurality of umbrella ribs 43 are in the unfolded state, and the plug rod 10 is pulled out of the mixing furnace. The plug rod 10 drives the plurality of umbrella ribs 43 to move toward the inner wall of the mixing furnace through the top cover 41, so that the plurality of umbrella ribs 43 collide with the inner wall of the mixing furnace, and naturally form a locking structure, which prevents the second plug 40 from loosening due to the pressure of the aluminum liquid, so that the second plug 40 can block the furnace eye. In addition, since the aluminum liquid in the mixing furnace strongly acts on the plurality of umbrella ribs 43 in the unfolded state, the umbrella ribs 43 can be locked with the furnace of the mixing furnace. The wall is firmly in contact with each other to ensure that the second plug 40 can completely seal the furnace eye. When the sleeve rod 20 moves toward the direction of the top cover 41, the sleeve rod 20 will drive the first plug 30 to move in the direction of the furnace eye, so that part of the first plug 30 is stuck in the furnace eye, and the other part of the first plug 30 is in contact with the outer wall of the mixing furnace, thereby achieving the sealing of the furnace eye. Under the action of the first plug 30 and the second plug 40, a two-stage sealing is achieved, which can avoid the accident of aluminum liquid leakage and ensure the sealing effect of the furnace eye.

[0052] When the furnace eye needs to be unsealed, the plug rod 10 is operated to move the plug rod 10 into the mixing furnace, and the top cover 41 will drive the multiple umbrella ribs 43 to separate from the furnace wall of the mixing furnace. At this time, the connecting assembly 42 is located in the first position, so that the multiple umbrella ribs 43 are in a retracted state, and the aluminum liquid will first fill the furnace eye and be intercepted by the second plug 40 to avoid aluminum liquid splashing and ensure safety. Then, the plug rod 10 and the sleeve rod 20 are slowly pulled out of the furnace eye, so that the first plug 30 and the second plug 40 are both out of the furnace eye, which can ensure that the aluminum liquid flows safely and stably into the chute 120.

[0053] In some embodiments, after the second plug 40 is sent as a whole through the furnace eye into the mixing furnace by the plug rod 10, the plug rod 10 is adjusted so that the axis of the plug rod 10 is perpendicular to the furnace wall of the mixing furnace, and the second plug 40 is concentric with the furnace eye, so that the aluminum liquid in the mixing furnace can act strongly on the multiple ribs 43 in the expanded state, so that the ribs 43 can be firmly in contact with the furnace wall of the mixing furnace.

[0054] In some embodiments, the second plug 40 may be in the shape of a truncated cone or a cone. The cross-sectional area of the second plug 40 gradually increases from the top cover 41 to the second plug 40. The cross-sectional area of the second plug 40 is smaller than the area of the furnace eye at the smallest part, and is larger than the area of the furnace eye at the largest part.

[0055] Combination Figure 1 , Figure 2 and Figure 5 In some embodiments, in order to further ensure the plugging effect, the first plug 30 is provided with a vent hole 31 penetrating the first plug 30, and the plugging device for the furnace eye of the mixing furnace further includes: a vent pipe 50. The vent pipe 50 is connected to the vent hole 31 and is located at the end of the first plug 30 away from the second plug 40.

[0056] After the first plug 30 blocks the furnace eye, high-pressure gas is charged into the area between the first plug 30 and the second plug 40 through the vent pipe 50 and the vent hole 31. The charging pressure is greater than the pressure of the molten aluminum in the mixing furnace. After stamping, the high-pressure gas fills the area between the first plug 30 and the second plug 40, and fills the gap between the second plug 40 and the inner wall of the mixing furnace. The molten aluminum is sealed in the furnace of the mixing furnace by wind pressure, preventing the molten aluminum from seeping out of the gap of the furnace eye, further achieving the sealing of the furnace eye and ensuring complete sealing.

[0057] In some embodiments, in order to ensure the service life of the first plug and the second plug, the plugging device of the furnace eye of the hybrid furnace further includes: a first high temperature resistant part and a second high temperature resistant part. The first high temperature resistant part is laid on the end face of the first plug 30 facing the second plug 40, which can make the first plug 30 resistant to high temperature. The second high temperature resistant part is laid with the top cover 41 and a plurality of ribs 43, which can make the second plug 40 resistant to high temperature, and at the same time, can block the gap between two adjacent ribs 43 to avoid leakage of aluminum liquid and ensure the sealing effect.

[0058] In some embodiments, the materials of the first high temperature resistant component and the second high temperature resistant component may be high temperature resistant asbestos materials.

[0059] In some embodiments, in order to ensure that both the first plug 30 and the second plug 40 can seal the furnace eye, when the connecting assembly 42 is in the second position, the distance between the first plug 30 and the end of the rib 43 away from the top cover 41 is less than or equal to the length of the furnace eye, so that the first plug 30 and the second plug 40 are respectively located at the two ends of the furnace eye to achieve two-stage sealing.

[0060] In some embodiments, when the connection assembly 42 is in the first position, the cross-sectional area of the second plug 40 is smaller than the area of the furnace eye, so that the second plug 30 can pass through the furnace eye and enter the mixing furnace. When the connection assembly 42 is in the second position, the cross-sectional area of the second plug 40 is larger than the area of the furnace eye, so that the second plug 40 can block the furnace eye, and at the same time, the plurality of ribs 43 can collide with the inner wall of the mixing furnace.

[0061] Combination Figure 3 , Figure 4 and Figure 6 In some embodiments, in order to achieve the folding or unfolding of multiple umbrella ribs, the connecting assembly 42 includes: a slip ring 421, a connecting rod 422 and a reset member 423. The slip ring 421 can be slidably mounted on the plug rod 10 and is located between the sleeve rod 20 and the top cover 41. Multiple connecting rods 422 correspond to multiple umbrella ribs 43 one by one, one end of the connecting rod 422 is hinged to the slip ring 421, and the other end is hinged to the corresponding umbrella rib 43. The reset member 423 is mounted on the plug rod 10, one end of the reset member 423 is connected to the top cover 41, and the other end is connected to the slip ring 421. The reset member 423 can be a spring. When the connecting assembly 42 is in the first position, the reset member 423 is in an extended state, and when the connecting assembly 42 is in the second position, the reset member 423 is in a compressed state, and the slip ring 421 is in conflict with the sleeve rod 20.

[0062] When there is no external force, the reset member 423 is in an extended state to push the slip ring 421 to move on the plug rod 10. The slip ring 421 pulls the corresponding umbrella ribs 43 through the connecting rod 422, so that the plurality of umbrella ribs 43 are in a retracted state. When plugging the furnace eye, operate the plug rod 10 to make the plurality of umbrella ribs 43 in the retracted state pass through the furnace eye and enter the mixing furnace. At this time, operate the sleeve rod 20 to make the sleeve rod 20 move in the direction of the top cover 41 until the sleeve rod 20 abuts against the slip ring 421. The sleeve rod 421 continues to push the slip ring 421, and the slip ring 421 compresses the elastic member 423. At the same time, the slip ring 421 pulls the corresponding umbrella ribs 43 through the connecting rod 422, so that the plurality of umbrella ribs 43 are in an unfolded state. At this time, pull the plug rod 10 out of the mixing furnace, and the plug rod 10 drives the plurality of umbrella ribs 43 to move towards the inner wall of the mixing furnace through the top cover 41, so that the plurality of umbrella ribs 43 abut against the inner wall of the mixing furnace, naturally forming a locking structure, preventing the second plug 40 from loosening due to the pressure of the molten aluminum, so that the second plug 40 can plug the furnace eye. Moreover, due to the pressure of the molten aluminum in the mixing furnace acting on the plurality of umbrella ribs 43 in the unfolded state, the umbrella ribs 43 can abut firmly against the furnace wall of the mixing furnace, ensuring that the second plug 40 can completely plug the furnace eye.

[0063] When the furnace eye needs to be unsealed, operate the plug rod 10 to make the plug rod 10 move into the mixing furnace. The top cover 41 will drive the plurality of umbrella ribs 43 to separate from the furnace wall of the mixing furnace. The elastic member 423 extends. Under the action of the restoring force of the elastic member 423, the slip ring 421 pulls the corresponding umbrella ribs 43 through the connecting rod 422, so that the plurality of umbrella ribs 43 are in a retracted state. The molten aluminum will first fill the furnace eye and be intercepted by the second plug 40 to avoid splashing of the molten aluminum and ensure safety. Then, slowly pull the plug rod 10 and the sleeve rod 20 out of the furnace eye, so that both the first plug 30 and the second plug 40 leave the furnace eye, ensuring that the molten aluminum can flow into the chute 120 safely and stably.

[0064] Combined Figure 3 、 Figure 4 and Figure 6 In some embodiments, in order to facilitate driving the plug rod 10 and the sleeve rod 20 to move, the plugging device for the furnace eye of the mixing furnace further includes: a first driving member 60 and a second driving member 70. The first driving member 60 is connected to the plug rod 10. The second driving member 70 is connected to the sleeve rod 20. Among them, the first plug 30 is located between the first driving member 62 and the top cover 41, and the second driving member is located between the first driving member 70 and the first plug 30.

[0065] Since both the plug rod 10 and the sleeve rod 20 are cylinders and are not easy to operate, the plug rod 10 can be driven to move by operating the first driving member 60, and the sleeve rod 20 can be driven to move by operating the second driving member 70, making the operation convenient.

[0066] In some embodiments, in order to enable the first driving member 10 to drive the plug rod 10 to act and the second driving member 20 to drive the sleeve rod 20 to act, the plugging device for the tuyere of the mixing furnace further includes: a first driver and a second driver. The first driver is connected to the first driving member 60. The second driver is connected to the second driving member 70. Wherein, both the first driver and the second driver can be hydraulic cylinders or pneumatic cylinders.

[0067] In some embodiments, in order to completely plug the tuyere with the first plug 30 and the second plug 40, the end face of the first driving member 60 facing the second driving member 70 is a first inclined surface, and the end face of the second driving member 70 facing the first driving member 60 is a second inclined surface. The plugging device for the tuyere of the mixing furnace further includes: a limiting member 80. Both ends of the limiting member 80 are respectively embedded in the first inclined surface and the second inclined surface.

[0068] When the first plug 30 abuts against the outer wall of the mixing furnace and the second plug 40 abuts against the inner wall of the mixing furnace, the limiting member 80 is installed on the first inclined surface and the second inclined surface. Both ends of the limiting member 80 are respectively embedded in the first inclined surface and the second inclined surface, and the limiting member 80 is pushed towards the direction of the plug rod 10 until the limiting member 80 no longer acts in the direction of the plug rod 10, so that the positions of the first driving member 60 and the second driving member 70 can be limited, ensuring that the positions of the first driving member 60 and the second driving member 70 will not change, enabling the first plug 30 to continuously abut against the outer wall of the mixing furnace, and also enabling the second plug 40 to continuously abut against the inner wall of the mixing furnace. At the same time, it can avoid the continuous operation of the first driver and the second driver, ensuring the service life of the first driver and the second driver and reducing energy consumption.

[0069] In some embodiments, the first driving member 60 and the second driving member 70 are spaced apart to form an opening, and the limiting member 80 can enter between the first driving member 60 and the second driving member 70 through the opening. Along the direction of the opening towards the plug rod 10, the distance between the first inclined surface and the second inclined surface gradually decreases.

[0070] Combined Figure 7 、 Figure 8 and Figure 9 In some embodiments, in order to realize the folding or unfolding of multiple umbrella ribs, the umbrella ribs 43 are provided with slide rails 428, and the connecting assembly 42 includes: a bearing 424 and a slider 427. The bearing 424 has an inner ring and an outer ring. The inner ring is sleeved on the plug rod 10 and is threadedly connected to the plug rod 10, and the inner ring is connected to the sleeve rod 20. A plurality of sliders 427 are arranged on the outer ring, and the plurality of sliders 427 correspond to the plurality of umbrella ribs 43 one by one. The slider 427 is slidably arranged in the slide rail 428 of the corresponding umbrella rib 43.

[0071] The sleeve rod 20 rotates on the plug rod 10 and drives the inner ring to rotate on the plug rod 10. Since the inner ring is threadedly connected to the plug rod 10, the inner ring can move on the plug rod 10 in the direction of the first plug 30, and the sleeve rod 20 also moves on the plug rod 10 in the direction of the first plug 30. At this time, the outer ring drives the slider 427 to slide in the slide rail 428 of the corresponding umbrella rib 43, pulling the corresponding umbrella rib 43 so that the plurality of umbrella ribs 43 are in a retracted state. When plugging the furnace eye, operate the plug rod 10 so that the plurality of umbrella ribs 43 in the retracted state pass through the furnace eye and enter the mixing furnace. At this time, the sleeve rod 20 rotates reversely on the plug rod 10 and drives the inner ring to rotate reversely on the plug rod 10. The inner ring can move on the plug rod 10 in the direction of the top cover 41, and the sleeve rod 20 also moves on the plug rod 10 in the direction of the top cover 41. The outer ring drives the slider 427 to slide in the slide rail 428 of the corresponding umbrella rib 43, pushing the corresponding umbrella rib 43 so that the plurality of umbrella ribs 43 are in an unfolded state, so that the plurality of umbrella ribs 43 are in contact with the inner wall of the mixing furnace, naturally forming a locking structure, preventing the second plug 40 from loosening due to the pressure of the molten aluminum, so that the second plug 40 can plug the furnace eye. Moreover, due to the action of the aluminum liquid pressure in the mixing furnace on the plurality of umbrella ribs 43 in the unfolded state, the umbrella ribs 43 can be firmly in contact with the furnace wall of the mixing furnace to ensure that the second plug 40 can completely plug the furnace eye. Since the sleeve rod 20 moves in the direction of the top cover 441, the sleeve rod 20 will drive the first plug 30 to move in the direction of the furnace eye, so that a part of the first plug 30 is clamped in the furnace eye, and the other part of the first plug 30 is in contact with the outer wall of the mixing furnace, realizing the plugging of the furnace eye. Under the action of the first plug 30 and the second plug 40, two-stage plugging is realized, which can avoid the accident of molten aluminum leakage and ensure the plugging effect of the furnace eye.

[0072] When the furnace eye needs to be unsealed, the sleeve rod 20 rotates on the plug rod 10 and drives the inner ring to rotate on the plug rod 10. Since the inner ring is threadedly connected to the plug rod 10, the inner ring can move on the plug rod 10 in the direction of the first plug 30, and the sleeve rod 20 also moves on the plug rod 10 in the direction of the first plug 30. At this time, the outer ring drives the slider 427 to slide in the slide rail 428 of the corresponding umbrella rib 43, pulling the corresponding umbrella rib 43 so that the plurality of umbrella ribs 43 are in a retracted state. At this time, since the sleeve rod 20 also moves on the plug rod 10 in the direction of the first plug 30, the sleeve rod 20 will drive the first plug 30 to separate from the furnace eye, and then slowly pull the plug rod 10 and the sleeve rod 20 out of the furnace eye so that both the first plug 30 and the second plug 40 leave the furnace eye, ensuring the safe and stable flow of molten aluminum into the chute 120.

[0073] Combined with Figure 7 and Figure 9, in some embodiments, for the convenience of connecting the inner ring to the sleeve rod 20, the connecting assembly 40 further includes: a driving rod 425 and a connecting cylinder 426. The driving rod 425 is connected to the inner ring of the bearing, the connecting cylinder 426 is connected to the sleeve rod 20, and the driving rod 425 is connected to the connecting cylinder 426. Among them, the shapes of the driving rod 425 and the connecting cylinder 426 are both polygonal.

[0074] Combined with Figure 7 and Figure 9 , in some embodiments, for the convenience of the movement of the plug rod 10 and the sleeve rod 20, the plugging device for the furnace eye of the mixing furnace further includes: a third driving member 90, a gear ring 100 and a driving gear 110. The third driving member 90 is connected to the plug rod 10. The gear ring 100 is arranged on the peripheral surface of the sleeve rod 20. The driving gear 110 meshes with the gear ring 100. Among them, the first plug 30 is located between the third driving member 110 and the top cover 41, and the gear ring 100 is located between the third driving member and the first plug 30.

[0075] Since both the plug rod 10 and the sleeve rod 20 are cylinders and are not convenient to operate, therefore, the plug rod 10 can be driven to move by operating the third driving member 90, and the gear ring 100 can be rotated by operating the driving gear 110. The gear ring 100 drives the sleeve rod 20 to rotate, making the operation convenient.

[0076] In some embodiments, since the length of the gear ring 100 is greater than the length of the furnace eye, therefore, whether plugging or unsealing the furnace eye, the gear ring 100 can always mesh with the driving gear 110.

[0077] In some embodiments, in order to enable the third driving member 90 to drive the plug rod 10 to move and enable the gear ring 100 to drive the sleeve rod 20 to move, the plugging device for the furnace eye of the mixing furnace further includes: a third driver and a fourth driver. The third driver is connected to the third driving member 90. The fourth driver is connected to the driving gear 110. Among them, the third driver can be a hydraulic cylinder or a pneumatic cylinder, and the fourth driver can be an electric motor.

[0078] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present application.

[0079] In the description of the present invention, unless otherwise explicitly specified and defined, the first feature being "on" or "under" the second feature may include direct contact between the first and second features, or may include the first and second features not being in direct contact but in contact through additional features therebetween. Moreover, the first feature being "above", "over" and "on top of" the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the horizontal height of the first feature is higher than that of the second feature. The first feature being "under", "beneath" and "underneath" the second feature includes the first feature being directly below and obliquely below the second feature, or merely indicating that the horizontal height of the first feature is less than that of the second feature.

[0080] In the description of this specification, the description with reference to terms such as "one embodiment", "some embodiments", "example", "specific example", or "some examples", etc. means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of this application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. In addition, those skilled in the art can combine and combine the different embodiments or examples described in this specification.

[0081] Although the preferred embodiments of this application have been described, those of ordinary skill in the art can make additional changes and modifications once they learn of the basic creative concept. Therefore, the appended claims are intended to be construed to include the preferred embodiments as well as all changes and modifications falling within the scope of this application.

[0082] Obviously, those skilled in the art can make various changes and modifications to this application without departing from the spirit and scope of this application. Thus, if these modifications and variations of this application fall within the scope of the claims of this application and their equivalent technologies, this application is also intended to include these changes and modifications.

Claims

1. A plugging device for the tuyere of a mixing furnace, characterized in that, include: Stopper rod; A sleeve rod, sleeved on the plug rod and movable along the axial direction of the plug rod; A first plug connected to the sleeve rod; The second plug includes: a top cover, a connecting assembly and a plurality of ribs, wherein the top cover is connected to the plug rod, one end of the plurality of ribs is hinged to the top cover, and the other end is hinged to the connecting assembly, the connecting assembly is located between the top cover and the sleeve rod, and the connecting assembly can move along the axial direction of the plug rod and switch between a first position and a second position; Wherein, when the connecting assembly is located at the first position, the plurality of ribs are in a folded state, and when the connecting assembly is located at the second position, the plurality of ribs are in an unfolded state.

2. The plugging device for the furnace eye of the mixing furnace according to claim 1, characterized in that, The first plug is provided with a vent hole penetrating the first plug, and the plugging device for the furnace eye of the mixing furnace further comprises: A vent pipe is communicated with the vent hole and is located at an end of the first plug away from the second plug.

3. The plugging device for the furnace eye of the mixing furnace according to claim 1, characterized in that, The plugging device of the mixing furnace eye also includes: A first high temperature resistant component is disposed on the end surface of the first plug facing the second plug; The second high temperature resistant component is laid on the top cover and the plurality of umbrella ribs.

4. The plugging device for the furnace eye of the mixing furnace according to any one of claims 1-3, characterized in that, When the connecting assembly is located at the second position, the distance between the first plug and the end of the rib facing away from the top cover is less than or equal to the length of the furnace eye.

5. The plugging device for the furnace eye of the mixing furnace according to any one of claims 1-3, characterized in that, When the connecting assembly is located at the first position, the cross-sectional area of the second plug is smaller than the area of the furnace eye; when the connecting assembly is located at the second position, the cross-sectional area of the second plug is larger than the area of the furnace eye.

6. The plugging device for the furnace eye of the mixing furnace according to any one of claims 1-3, characterized in that, The connection component comprises: A slip ring, slidably sleeved on the plug rod and located between the sleeve rod and the top cover; A plurality of connecting rods corresponding to the plurality of umbrella ribs one by one, one end of the connecting rod being hinged to the sliding ring, and the other end being hinged to the corresponding umbrella rib; A reset member, sleeved on the plug rod, one end of the reset member is connected to the top cover, and the other end is connected to the slip ring; Wherein, when the connecting assembly is located at the first position, the reset member is in an extended state, and when the connecting assembly is located at the second position, the reset member is in a compressed state, and the slip ring is in conflict with the sleeve rod.

7. The plugging device for the furnace eye of the mixing furnace according to claim 6, characterized in that, The plugging device of the mixing furnace eye also includes: A first driving member connected to the plug rod; A second driving member connected to the sleeve rod; Wherein, the first plug is located between the first driving member and the top cover, and the second driving member is located between the first driving member and the first plug.

8. The plugging device for the furnace eye of the mixing furnace according to claim 7, characterized in that, The end surface of the first driving member facing the second driving member is a first inclined surface, and the end surface of the second driving member facing the first driving member is a second inclined surface. The plugging device of the furnace eye of the mixing furnace also includes: The limiting member has two ends respectively embedded in the first inclined surface and the second inclined surface.

9. The plugging device for the furnace eye of the mixing furnace according to any one of claims 1-3, characterized in that The umbrella ribs are provided with slide rails, and the connecting assembly comprises: A bearing, comprising an inner ring and an outer ring, wherein the inner ring is sleeved on the plug rod and threadedly connected to the plug rod, and the inner ring is connected to the sleeve rod; A plurality of sliding blocks are arranged on the outer ring, the plurality of sliding blocks correspond to the plurality of umbrella ribs one by one, and the sliding blocks can be slidably arranged in the slide rails of the corresponding umbrella ribs.

10. The plugging device for the furnace eye of the mixing furnace according to claim 9, characterized in that, The plugging device for the tuyere of the mixing furnace further includes: A third driving member, connected to the plug rod; A gear ring, provided on the circumferential surface of the sleeve rod; A driving gear, meshing with the gear ring; Wherein, the length of the gear ring is greater than the length of the tuyere, the first plug is located between the third driving member and the top cover, and the gear ring is located between the third driving member and the first plug.

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