A stopper device for a smelting furnace

Abstract

The utility model discloses a kind of stop rod devices for smelting furnace, belong to smelting furnace technical field, including cylinder mounting plate, cylinder mounting plate is provided with cylinder main body, piston rod is movably connected on cylinder main body, piston rod is provided with adjusting assembly at one end away from cylinder mounting plate, piston rod is connected with stop rod on one side away from adjusting assembly by heat dissipation component, can reduce the process that stop rod inserts furnace mouth in traditional structure, stop rod is caused by high temperature and leads to thermal expansion length to be longer, it can be jammed after inserting furnace mouth, cause stop rod cannot back off or the generation of damage furnace mouth sleeve phenomenon, improve the service life of overall system.

Description

Technical Field

[0001] This utility model belongs to the field of smelting furnace technology, specifically a plugging device for a smelting furnace. Background Technology

[0002] In the smelting process before atomization powder production of aluminum, magnesium, and their alloys, the smelting furnace or holding furnace serves as a high-temperature operating device, maintaining an internal environment continuously above 700°C. After the alloy ingot enters the furnace to melt, the molten metal needs to be transferred to the atomizing nozzle pipe, allowing it to enter the atomization chamber and be atomized into metal powder. This necessitates periodic "water-blocking" operations on the furnace body, i.e., temporarily or permanently closing / opening part of the furnace opening, with adjustable opening diameter to obtain an appropriate flow rate of molten metal.

[0003] Chinese utility model patent CN205138216U discloses a plugging machine for an aluminum melting furnace. Its main structure includes a plugging rod, a plugging rod mounting bracket, a swing rod, a support arm, a cylinder, a cylinder mounting seat, a Y-shaped connector, a connecting rod, and an anti-loosening nut. This patented device cleverly combines pneumatic technology with a linkage mechanism to achieve automated control of the plugging rod's sealing and retraction actions, significantly improving processing efficiency. Practical application has proven that this device has advantages such as compact structure, high degree of automation, adjustable sealing force, and easy maintenance.

[0004] However, the device still has obvious shortcomings. In the above-mentioned patented structure, the plug rod still needs to be directly inserted into the furnace opening of the aluminum melting furnace. It is significantly affected by high temperature radiation. Under high temperature, the plug rod is prone to thermal expansion and deformation, resulting in changes in its length. When the plug rod is inserted into the furnace opening, it is easy to get stuck in the furnace opening sleeve due to excessive thermal expansion. In severe cases, it not only affects the automatic retraction function of the equipment, but may also cause damage to the plug rod or the furnace opening structure, reducing the overall system reliability and service life. Utility Model Content

[0005] The purpose of this invention is to provide a rod-blocking device for a smelting furnace to solve at least one aspect of the problems and defects mentioned in the background art.

[0006] A blocking device for a smelting furnace is provided, comprising a cylinder mounting plate, a cylinder body disposed on the cylinder mounting plate, a piston rod movably connected to the cylinder body, an adjusting component disposed at the end of the piston rod away from the cylinder mounting plate, and a blocking rod connected to the side of the piston rod away from the adjusting component via a heat dissipation component.

[0007] Furthermore, the adjustment assembly includes an adjustment seat, which is detachably connected to the cylinder body via a connecting assembly. A fully threaded hexagonal screw is rotatably connected inside the adjustment seat, and an internal hexagonal screw is rotatably connected inside the fully threaded hexagonal screw. The internal hexagonal screw is connected to a piston rod via a spring, and the spring is disposed between the internal hexagonal screw and the piston rod.

[0008] Furthermore, the connecting assembly includes a plurality of flat-head screws, and the adjusting seat is detachably connected to the adjusting seat via the plurality of flat-head screws, each of the plurality of flat-head screws being provided with a first locking nut.

[0009] Furthermore, a second locking nut is provided between the fully threaded hexagonal screw and the adjusting seat.

[0010] Furthermore, the heat dissipation assembly includes a radiator, which is detachably connected to the piston rod, and a plug rod mounting plate is disposed on the radiator, with a plug rod disposed on the plug rod mounting plate.

[0011] Furthermore, several high-frequency ceramic elements are disposed on the outer side of the heat sink.

[0012] Furthermore, a plurality of adjusting screws are provided on one side of the cylinder mounting plate, and the plurality of adjusting screws are rotatably connected to the cylinder mounting plate.

[0013] Furthermore, a third locking nut is provided on the upper part of each of the aforementioned adjusting screws.

[0014] Furthermore, the internal hexagon screw is also provided with an adjustment hole.

[0015] Furthermore, a plug rod is detachably connected to the plug rod mounting plate.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows: When the cylinder body is working, the piston rod moves back and forth under the drive of air pressure, which drives the piston rod to extend or retract, thereby realizing the insertion or withdrawal of the plug rod. This action realizes the opening and closing control of the discharge port of the melting furnace. Since the plug rod works in a high-temperature melting environment, if the high temperature is directly conducted to the inside of the cylinder through the metal rod, it will cause the internal seals of the cylinder to age and fail, reducing the life of the device. The heat dissipation component ensures the thermal stability and reliable operation of the cylinder. In addition, by adjusting the cylinder stroke, the diameter of the cylinder retraction (opening the plug) can be adjusted so that the liquid flow can obtain a suitable flow rate and enter the atomization chamber for atomization; This device, through the adjustment of components, can reduce the process of inserting the plug rod into the furnace opening in the traditional structure. Due to the high temperature, the plug rod expands in length and may get stuck after being inserted into the furnace opening, causing the plug rod to be unable to retract or damaging the furnace opening sleeve, thus improving the service life of the overall system. Attached Figure Description

[0017] To facilitate understanding by those skilled in the art, the present invention will be further described below with reference to the accompanying drawings.

[0018] Figure 1This is a schematic diagram of the overall structure of a plugging device for a smelting furnace; Figure 2 This is a front view of the adjustment component provided by this utility model. Figure 3 This is a frontal cross-sectional view of the adjustment component provided by this utility model.

[0019] In the diagram: 1. Cylinder mounting plate; 11. Adjusting screw; 12. Third locking nut; 2. Cylinder body; 3. Piston rod; 4. Adjusting assembly; 41. Adjusting seat; 42. Fully threaded hexagonal screw; 43. Socket head cap screw; 431. Adjusting hole; 44. Spring; 45. Second locking nut; 5. Heat dissipation assembly; 51. Radiator; 52. Plug rod mounting plate; 53. High-frequency ceramic chip; 6. Plug rod; 7. Connecting assembly; 71. Flat head screw; 72. First locking nut. Detailed Implementation

[0020] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0021] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0022] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If "first" or "second" is used in the description, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0023] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0024] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only for explaining the present utility model and are not intended to limit the present utility model; that is, the described embodiments are only some embodiments of the present utility model, and not all embodiments. The components of the embodiments of the present utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0025] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0026] Please see Figure 1-3 As shown in the present invention, a blocking device for a smelting furnace includes a cylinder mounting plate 1, a cylinder body 2 is provided on the cylinder mounting plate 1, a piston rod 3 is movably connected to the cylinder body 2, an adjustment component 4 is provided at the end of the piston rod 3 away from the cylinder mounting plate 1, and a blocking rod 6 is connected to the side of the piston rod 3 away from the adjustment component 4 through a heat dissipation component 5. When the cylinder body 2 is working, the piston rod 3 moves back and forth under the drive of air pressure, causing the piston rod 3 to extend or retract, thereby realizing the insertion or withdrawal of the plug rod 6. This action realizes the opening and closing control of the discharge port of the smelting furnace. Since the plug rod 6 works in a high-temperature smelting environment, if the high temperature is directly conducted to the inside of the cylinder through the metal rod, it will cause the internal seals of the cylinder body 2 to age and fail, reducing the life of the device. The heat dissipation component 5 ensures the thermal stability and reliable operation of the cylinder body 2. In addition, this device can reduce the phenomenon that the plug rod 6 may get stuck after being inserted into the furnace opening due to thermal expansion caused by high temperature during the insertion process of the plug rod 6 in the traditional structure, which may cause the plug rod 6 to be unable to retract or damage the furnace opening sleeve, thus improving the service life of the overall system.

[0027] In one embodiment, see Figure 1 , Figure 2 and Figure 3As shown, the adjustment assembly 4 includes an adjustment seat 41, which is detachably connected to the cylinder body 2 via a connecting assembly 7. A fully threaded hexagonal screw 42 is rotatably connected inside the adjustment seat 41, and an internal hexagonal screw 43 is rotatably connected inside the fully threaded hexagonal screw 42. The internal hexagonal screw 43 is connected to a piston rod 3 via a spring 44. The spring 44 is positioned between the internal hexagonal screw 43 and the piston rod 3. The operator rotates the internal hexagonal screw 43 using a tool; when the internal hexagonal screw 43 rotates, it compresses the spring 44 in the axial direction. The deformation of the spring 44 causes a corresponding axial displacement of the piston rod 3, thereby achieving fine-tuning of the initial position of the piston rod 3 and setting the preload of the spring 44. During equipment operation, when the plug rod 6 expands due to heat, its length increases, compressing the spring 44 and absorbing the displacement caused by thermal expansion, preventing the plug rod 6 from jamming or being damaged. When the plug rod 6 cools and retracts, the spring 44 automatically rebounds, pushing the piston rod 3 back to its original position, ensuring consistent operation.

[0028] In one embodiment, see Figure 1 , Figure 2 and Figure 3 As shown, the connecting assembly 7 includes several flat-head screws 71. The adjusting seat 41 is detachably connected to the adjusting seat 41 by several flat-head screws 71. Each of the several flat-head screws 71 is provided with a first locking nut 72. The adjusting seat 41 is aligned with the mounting holes on the cylinder body 2 through several mounting holes (not shown in the figure) at the bottom or rear. By passing the several flat-head screws 71 through the mounting holes of the adjusting seat 41 and screwing them into the corresponding internal thread holes of the cylinder body 2, a firm, reliable, detachable, and vibration-resistant connection between the adjusting seat 41 and the cylinder body 2 is achieved, which has good adaptability and maintenance convenience.

[0029] In one embodiment, see Figure 1 , Figure 2 and Figure 3 As shown, a second locking nut 45 is provided between the fully threaded hexagonal screw 42 and the adjusting seat 41. After the fully threaded hexagonal screw 42 is adjusted, the second locking nut 45 is tightened with a tool so that the fully threaded hexagonal screw 42 is pressed against the outer wall of the adjusting seat 41 to achieve rotational locking.

[0030] In one embodiment, see Figure 1 and Figure 2As shown, the heat dissipation assembly 5 includes a heat sink 51, which is detachably connected to the piston rod 3. A plug rod mounting plate 52 is mounted on the heat sink 51, and a plug rod 6 is mounted on the plug rod mounting plate 52. The heat sink 51 is made of high-temperature ceramic material and is located between the plug rod 6 and the piston rod 3, preventing direct contact between the plug rod 6 and the piston rod 3. The heat sink 51 absorbs the high-temperature heat at the plug rod 6 and slowly diffuses it within the heat sink 51, reducing the rate of upward heat transfer. The plug rod mounting plate 52 is made of heat-resistant stainless steel material (specific models include 304H / 310S / 316Ti).

[0031] In one embodiment, see Figure 1 and Figure 2 As shown, several high-frequency ceramic elements 53 are arranged on the outer side of the radiator 51. The high-frequency ceramic elements 53 are made of alumina ceramic and are attached to the outer surface of the radiator 51. They can effectively block or slow down the further transfer of heat to the outside of the radiator 51, forming a thermal buffer layer between the piston rod 3 and the cylinder body 2. This can reduce the heat intrusion caused by metal heat conduction and prevent high temperature from being conducted to the inside of the cylinder body 2 through the piston rod 3, thus playing a role in thermal insulation.

[0032] In one embodiment, see Figure 1 and Figure 3 As shown, several adjusting screws 11 are rotatably connected to one side of the cylinder mounting plate 1. The adjusting screws 11 are fully threaded screws and are rotatably connected to the cylinder mounting plate 1. By rotating the adjusting screws 11, the cylinder mounting plate 1 can be adjusted slightly in the vertical direction to accommodate different worktable height requirements.

[0033] In one embodiment, see Figure 1 and Figure 3 As shown, each of the several adjusting screws 11 is provided with a third locking nut 12. After the adjusting screw 11 has completed the required height adjustment, the height position of the adjusting screw 11 can be effectively locked by tightening the third locking nut 12 to prevent position displacement due to vibration or during operation.

[0034] In one embodiment, see Figure 1 and Figure 3 As shown, the internal hex screw 43 is also provided with an adjustment hole 431. The adjustment hole 431 is used to install an adjustment tool. By inserting it into the adjustment hole 431 and making a fine rotation, the internal hex screw 43 can be adjusted and tightened through the adjustment hole 431.

[0035] In one embodiment, see Figure 1 and Figure 3As shown, a plug rod 6 is detachably connected to the plug rod mounting plate 52. The plug rod 6 is a wear part that is often exposed to high-temperature conditions. After long-term use, the plug rod 6 is prone to deformation, burning and other failure problems. The plug rod 6 is designed to be detachable, which facilitates quick replacement of the plug rod 6 without disassembling the entire mechanism, reducing maintenance complexity and downtime. The plug rod mounting plate 52 and the plug rod 6 are connected by threads, which achieves the purpose of quick replacement and improved maintenance efficiency.

[0036] The above description is merely an example and illustration of the structure of this utility model. Those skilled in the art can make various modifications or additions to the specific embodiments described or use similar methods to replace them, as long as they do not deviate from the structure of the utility model or exceed the scope defined in the claims, they should all fall within the protection scope of this utility model.

Claims

1. A plugging device for a smelting furnace, comprising a cylinder mounting plate (1), characterized in that, A cylinder body (2) is provided on the cylinder mounting plate (1), and a piston rod (3) is movably connected to the cylinder body (2). An adjustment component (4) is provided at the end of the piston rod (3) away from the cylinder mounting plate (1), and a plug rod (6) is connected to the side of the piston rod (3) away from the adjustment component (4) through a heat dissipation component (5).

2. The plugging rod device for a smelting furnace according to claim 1, characterized in that, The adjustment assembly (4) includes an adjustment seat (41), which is detachably connected to the cylinder body (2) via a connecting assembly (7). A fully threaded hexagonal screw (42) is rotatably connected inside the adjustment seat (41), and an internal hexagonal screw (43) is rotatably connected inside the fully threaded hexagonal screw (42). The internal hexagonal screw (43) is connected to a piston rod (3) via a spring (44), and the spring (44) is positioned between the internal hexagonal screw (43) and the piston rod (3).

3. The plugging rod device for a smelting furnace according to claim 2, characterized in that, The connecting assembly (7) includes a plurality of flat-head screws (71), and the adjusting seat (41) is detachably connected to the adjusting seat (41) by the plurality of flat-head screws (71), and each of the plurality of flat-head screws (71) is provided with a first locking nut (72).

4. The plugging rod device for a smelting furnace according to claim 2, characterized in that, A second locking nut (45) is provided between the fully threaded hexagonal screw (42) and the adjusting seat (41).

5. The plugging rod device for a smelting furnace according to claim 1, characterized in that, The heat dissipation assembly (5) includes a radiator (51), which is detachably connected to the piston rod (3). A plug rod mounting plate (52) is provided on the radiator (51), and a plug rod (6) is provided on the plug rod mounting plate (52).

6. The plugging rod device for a smelting furnace according to claim 5, characterized in that, Several high-frequency ceramic elements (53) are provided on the outside of the radiator (51).

7. The plugging rod device for a smelting furnace according to claim 1, characterized in that, Several adjusting screws (11) are also rotatably connected to one side of the cylinder mounting plate (1).

8. The plugging rod device for a smelting furnace according to claim 7, characterized in that, Each of the aforementioned adjusting screws (11) is provided with a third locking nut (12) on its upper part.

9. A plugging device for a smelting furnace according to claim 2, characterized in that, The internal hex screw (43) is also provided with an adjustment hole (431).

10. A plugging device for a smelting furnace according to claim 5, characterized in that, A plug rod (6) is detachably connected to the plug rod mounting plate (52).

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