Smelting furnace degassing device

Abstract

The utility model provides a degassing device for a smelting furnace, which comprises a gas storage tank, a pipeline structure and a support main body, wherein the gas storage tank and the pipeline structure are connected with each other; the bearing platform is arranged on the support assembly, the bearing platform is provided with a first end face and a second end face which are arranged in the length direction of the pipeline structure, and the first end face and the second end face of the bearing platform protrude out of the two opposite ends of the support assembly respectively; the first pipe clamp is arranged on the first end face of the bearing platform; the second pipe clamp is arranged on the second end face of the bearing platform; wherein a first clamping hole and a second clamping hole are formed in the first pipe clamp and the second pipe clamp respectively, and the first clamping hole and the second clamping hole are coaxially arranged and used for clamping the pipeline structure. The degassing device solves the technical problems that a traditional degassing device has operation dead angles and potential safety hazards.

Description

Technical Field

[0001] The utility model relates to the technical field of aluminum melting, in particular to a degassing device for a melting furnace. Background Art

[0002] When melting aluminum alloy, high-temperature water vapor on the surface of the aluminum alloy liquid (referred to as "aluminum liquid" for short) reacts with the aluminum liquid to generate hydrogen atoms. Due to the simple structure and small radius of hydrogen atoms, they are easily dissolved in the aluminum liquid during the melting process and combine to form hydrogen gas. Therefore, aluminum alloy is prone to absorbing gas during the melting process. If the gas in the aluminum liquid is not removed, the castings produced will form pores and pinholes due to the precipitation of hydrogen gas. Therefore, aluminum alloy needs to be degassed during the melting process to ensure the quality of the aluminum liquid.

[0003] There are two commonly used methods for degassing aluminum liquid in the prior art: one is to react the chemical agent hexachloroethane with the aluminum liquid to generate low-melting-point tetrachloroethylene (boiling point 121°C), etc., which plays a degassing role during the floating process; the other is to blow in inert (argon, nitrogen) gases. The inert gases form dispersed bubbles in the aluminum liquid. The bubbles absorb hydrogen in the aluminum liquid by the principle of gas partial pressure difference and surface adsorption in the aluminum liquid, and are carried out of the aluminum liquid surface as the bubbles rise, so that the aluminum liquid is purified. Since chemical agents such as hexachloroethane have certain pollution to the environment and are slightly toxic, their use has been gradually phased out, while the use of the inert gas degassing method is becoming more and more widespread.

[0004] Currently, when using inert gas to degas aluminum liquid, generally various brackets are used to install the gas supply pipeline structure at the furnace mouth of the melting furnace. On the one hand, this method occupies a part of the position of the furnace mouth due to the brackets, which is not convenient for operation (such as adding powdery refining agent into the melting furnace), and it is not convenient to install or disassemble the brackets without shutting down the machine due to the high temperature at this place; on the other hand, since the pipeline structure directly extends into the melting furnace and there is no safety distance formed between them, there are great safety hazards. Summary of the Utility Model

[0005] Aiming at the deficiencies in the prior art, the utility model provides a degassing device for a melting furnace to solve the technical problems of operation dead angles and safety hazards existing in the traditional degassing device in the related art.

[0006] The utility model provides a degassing device for a melting furnace, which includes a gas storage tank and a pipeline structure connected to each other. The degassing device includes:

[0007] A support main body, including a bracket assembly and a walking assembly connected to each other;

[0008] A bearing platform is provided on the bracket assembly. The bearing platform has a first end face and a second end face arranged along the length direction of the pipeline structure, and the first end face and the second end face of the bearing platform respectively protrude outside the opposite ends of the bracket assembly;

[0009] A first pipe clamp is provided on the first end face of the bearing platform;

[0010] A second pipe clamp is provided on the second end face of the bearing platform;

[0011] Wherein, the first pipe clamp and the second pipe clamp are respectively formed with a first clamping hole and a second clamping hole, and the first clamping hole and the second clamping hole are coaxially arranged for clamping the pipeline structure.

[0012] Furthermore, the first pipe clamp includes two first clamping blocks that can move towards or away from each other, for adjusting the size of the first clamping hole formed between the two first clamping blocks.

[0013] Furthermore, two sliding seats are slidably arranged on the first end face of the bearing platform, and the two sliding seats are arranged in one-to-one correspondence with the two first clamping blocks.

[0014] Furthermore, a threaded rod is rotatably arranged on the first end face of the bearing platform, and the threaded rod penetrates through the two sliding seats, so that under the action of an external force, the threaded rod drives the two sliding seats to move towards or away from each other.

[0015] Furthermore, the opposite end faces of the two first clamping blocks are in a V-shaped structure.

[0016] Furthermore, the second pipe clamp includes two second clamping blocks that can be detachably connected. One of the two second clamping blocks is fixed to the bracket assembly, and the other can move relative to the bracket assembly for adjusting the size of the second clamping hole formed between the two second clamping blocks.

[0017] Furthermore, the two second clamping blocks are fixed by a plurality of screws.

[0018] Furthermore, a plurality of support openings are provided between the first end face and the second end face of the bearing platform for supporting the pipeline structure.

[0019] Furthermore, a handrail is provided on the first end face of the bearing platform.

[0020] Compared with the prior art, the utility model has the following beneficial effects: The pipeline structure is installed and fixed at the bearing platform through the first pipe clamp and the second pipe clamp. Pushing the support main body can make the bearing platform and the pipeline structure move synchronously. This not only facilitates moving the pipeline structure to the furnace mouth for degassing treatment, but also can change the position of the pipeline structure in the molten aluminum when pushing the support main body, so that the inert gas can be discharged and dispersed throughout the molten aluminum. By independently arranging the pipeline structure outside the furnace, during refining and degassing, only the pipeline structure needs to be put into the molten aluminum, which is convenient for installation, disassembly or storage, and the movable pipeline structure will not affect the subsequent processing of the molten aluminum. Moreover, the bearing platform is along the length direction of the pipeline structure, and the formed first end face and second end face both protrude from the relative two sides of the bracket assembly. The bearing platform can not only serve as the basis for supporting the pipeline structure, but also can change the position of the pipeline structure by operating the position of the bearing platform at a place far from the furnace, so as to form a safety distance from the furnace to prevent workers from approaching the molten aluminum during operation. Brief Description of the Drawings

[0021] Figure 1 is a schematic structural diagram of a furnace degassing device in an embodiment of the utility model;

[0022] Figure 2 is a schematic structural diagram of the first pipe clamp in an embodiment of the utility model;

[0023] Figure 3 is a schematic structural diagram of the second pipe clamp in an embodiment of the utility model.

[0024] Explanation of the Reference Numerals in the Drawings:

[0025] 1. Pipeline structure; 2. Bracket assembly; 3. Walking assembly; 4. Bearing platform; 5. First pipe clamp; 501. First clamping block; 502. Slide seat; 503. Threaded rod; 6. Second pipe clamp; 601. Second clamping block; 7. Support opening; 8. Handrail.

[0026] The realization, functional characteristics and advantages of the purpose of the utility model will be further described with reference to the embodiments and the drawings. Detailed Embodiment

[0027] In order to make the purpose, technical solution and beneficial effects of the utility model clearer, the technical solutions in the utility model will be further described below with reference to the drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0028] In the embodiment of the utility model, as Figure 1As shown in the figure, the degassing device of the furnace includes: a gas storage tank and a pipeline structure 1 connected to each other, as well as a support body, a bearing platform 4, a first pipe clamp 5 and a second pipe clamp 6; the support body includes a bracket assembly 2 and a walking assembly 3 connected to each other; the bearing platform 4 is arranged on the bracket assembly 2, the bearing platform 4 has a first end face and a second end face arranged along the length direction of the pipeline structure 1, and the first end face and the second end face of the bearing platform 4 respectively protrude outside the opposite ends of the bracket assembly 2; the first pipe clamp 5 is arranged on the first end face of the bearing platform 4; the second pipe clamp 6 is arranged on the second end face of the bearing platform 4; wherein, the first pipe clamp 5 and the second pipe clamp 6 are respectively formed with a first clamping hole and a second clamping hole, and the first clamping hole and the second clamping hole are coaxially arranged for clamping the pipeline structure 1.

[0029] Specifically, in the embodiment of the present invention, the gas storage tank (not shown) is used to store inert gas, and a flow control meter, a valve, etc. are arranged thereon. One end of the pipeline structure 1 is installed on the gas storage tank, and the other end thereof can extend into the molten aluminum to cooperate with the opening and closing of the gas storage tank to perform degassing treatment on the molten aluminum. The pipeline structure 1 includes a long pipeline and / or a plurality of short pipelines connected in sequence, and it should be made of a material with good sealing performance and high temperature resistance. Since the above is the prior art, it will not be elaborated one by one here.

[0030] In the embodiment of the present invention, the support body includes a bracket assembly 2 and a walking assembly 3 arranged in sequence along the up and down direction. The bracket assembly 2 constitutes the overall frame structure of the support body, and the walking assembly 3 is arranged at its bottom. The walking assembly 3 can be a plurality of universal wheels to form a structure similar to a trolley, so that the support body can move freely on the ground. Of course, the above universal wheels can be universal wheels with brakes.

[0031] In the embodiment of the present invention, a bearing platform 4 is fixed on the upper end face of the bracket assembly 2 for supporting the pipeline structure 1.

[0032] Specifically, the bearing platform 4 has a first end face and a second end face which are oppositely arranged. The two end faces are spaced along the length direction of the pipeline structure 1, and a first pipe clamp 5 and a second pipe clamp 6 are respectively arranged at the two end faces to clamp and fix the support pipeline at the bearing platform 4. The pipeline structure 1 moves along with the support main body through the bearing platform 4. Not only can the whole device be moved to the refining and degassing station, but also the pipeline structure 1 can be swung in the molten aluminum by pushing the support main body, so that the inert gas can fill every part of the molten aluminum. On the other hand, the first end face and the second end face of the bearing platform 4 respectively protrude outside the relative two sides of the bracket assembly 2. In this way, not only can the length of the bearing platform 4 be extended to place more pipeline structures 1 at the bearing platform 4, but also the operating distance between the molten aluminum and the worker can be extended. That is, the worker can stand at the first end face of the bearing platform 4 to operate the position state of the pipeline structure 1 in the molten aluminum to form a safety distance for the degassing operation, so that the worker can stay away from the high-temperature molten aluminum.

[0033] In this embodiment, the pipeline structure 1 can be installed and fixed at the bearing platform 4 through the first pipe clamp 5 and the second pipe clamp 6. By pushing the support main body, the pipeline structure 1 and the bearing platform 4 can move synchronously, so that the pipeline structure 1 can be independently installed outside the furnace. During use, the pipeline structure 1 can be extended into the molten aluminum, and there is no need to additionally install a bracket at the furnace mouth, which can reduce the blockage of the furnace mouth and facilitate operation. By the moving support main body, the pipeline structure 1 can swing in the molten aluminum, so that the inert gas can fill every part of the molten aluminum. At the same time, when not in use, the support main body can be pushed to separate the pipeline structure 1 from the molten aluminum, realizing rapid installation, disassembly and storage, and the operation is more convenient. In addition, the worker can stand at the first end face of the bearing platform 4 to operate, without approaching the high-temperature molten aluminum, which forcibly increases the distance between the worker and the molten aluminum and can avoid safety accidents caused by high temperature.

[0034] As Figure 2 shown, in an embodiment, the first pipe clamp 5 includes two first clamping blocks 501 that can move towards or away from each other, and is used to adjust the size of the first clamping hole formed between the two first clamping blocks 501. Specifically, in order to facilitate the installation and fixation of the pipeline structure 1 at the first end face of the bearing platform 4 to form a first clamping hole, in this embodiment, two first clamping blocks 501 are arranged at the first end face of the bearing platform 4. The two first clamping blocks 501 can move towards or away from each other, so as to be able to change the size of the first clamping hole, so as to facilitate clamping or releasing the pipeline structure 1 therebetween.

[0035] Furthermore, as Figure 2As shown, in one embodiment, two slide seats 502 are slidably provided on the first end surface of the carrying platform 4, and the two slide seats 502 are arranged in a one-to-one correspondence with the two first clamping blocks 501. Specifically, in order to enable the two first clamping blocks 501 to move relative to or away from each other, the present embodiment arranges two slide seats 502 on the first end surface of the carrying platform 4, and the two slide seats 502 are respectively fixedly connected to the two first clamping blocks 501, and the sliding of the slide seats 502 can link the movement of the first clamping blocks 501.

[0036] Furthermore, if Figure 2 As shown, in one embodiment, a threaded rod 503 is rotatably provided on the first end face of the support platform 4, and the threaded rod 503 passes through the two slides 502, so that under the action of an external force, the threaded rod 503 can link the two slides 502 to move toward or away from each other. Specifically, in order to drive the two slides 502 to move, this embodiment is provided with a threaded rod 503 rotatably on the first end face of the support platform 4, and the threaded rod 503 passes through the two slides 502 and is used in conjunction with them, so that when the threaded rod 503 is rotated by an external force, the two slides 502 can move relative to or away from each other. Of course, the threaded rod 503 should be similar to a bidirectional screw structure in order to be driven as described above; as Figure 2 As shown, a rotating wheel is provided at the end of the threaded rod 503 for easy holding.

[0037] Preferably, Figure 2 As shown, the opposite end surfaces of the two first clamping blocks 501 are in a V-shaped structure, which is used to increase the contact area with the surface of the pipeline structure 1, thereby fixing the pipeline structure 1 at the first clamping hole.

[0038] like Figure 3 As shown, in one embodiment, the second pipe clamp 6 includes two detachably connected second clamping blocks 601, one of which is fixed to the support assembly 2, and the other is movable relative to the support assembly 2, for adjusting the size of the second clamping hole formed between the two second clamping blocks 601. Specifically, in order to clamp the pipeline structure 1 in the second clamping hole and adjust the size of the second clamping hole, the second pipe clamp 6 is defined in this embodiment to include two detachably connected second clamping blocks 601, and the second clamping hole formed between the two clamping blocks can be closed or opened with the connection or separation of the two; so as to clamp or release the pipe clamp structure therebetween; in addition, one of the second clamping blocks 601 is fixed to the second end surface of the bearing platform 4, and the other second clamping block 601 can move relative to the second end surface of the bearing platform 4; preferably, the two second clamping blocks 601 are fixed by a plurality of screws.

[0039] Since the head end of the pipeline structure 1 is fixed by the first pipe clamp 5 and its tail end is fixed by the second pipe clamp 6, the setting of the first pipe clamp 5 can adjust the position of the head end of the pipeline structure 1 to facilitate positioning the overall placement position of the pipeline structure 1; the second pipe clamp 6 can prevent the pipeline structure 1 extending into the molten aluminum from jumping at the pipeline structure 1 located at the second clamping hole due to swinging. Moreover, the first pipe clamp 5 and the second pipe clamp 6 are also different in size, and the smaller second pipe clamp 6 is more conducive to the swinging of the pipeline structure 1 in the molten aluminum.

[0040] As Figure 1 , Figure 2 shown, in an embodiment, a plurality of support openings 7 are provided between the first end face and the second end face of the bearing platform 4 for supporting the pipeline structure 1. Specifically, in order to improve the stability of the pipeline structure 1 on the bearing platform 4, in this embodiment, a support opening 7 is provided between the first pipe clamp 5 and the second pipe clamp 6, and the support opening 7 is used to support the pipeline structure 1; of course, a plurality of second pipe clamps 6 are also provided between the two support openings 7 for further fixing the pipeline structure 1.

[0041] As Figure 1 shown, a handrail 8 is provided on the first end face of the bearing platform 4.

[0042] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present invention, and they should all be covered within the scope of the claims of the present invention.

Claims

1. A furnace degassing device, comprising a gas storage tank and a pipeline structure connected to each other, characterized in that: The degassing device comprises: A supporting body, including a connected support assembly and a walking assembly; A bearing platform is provided on the support assembly, the bearing platform has a first end surface and a second end surface provided along the length direction of the pipeline structure, and the first end surface and the second end surface of the bearing platform are respectively protruded outside the opposite ends of the support assembly; A first pipe clamp, provided on a first end surface of the bearing platform; A second pipe clamp, provided on a second end surface of the bearing platform; The first pipe clamp and the second pipe clamp are respectively formed with a first clamping hole and a second clamping hole, and the first clamping hole and the second clamping hole are coaxially arranged for clamping the pipeline structure.

2. A furnace degassing device according to claim 1, characterized in that: The first pipe clamp includes two first clamping blocks that can move toward or away from each other, and are used to adjust the size of the first clamping hole formed between the two first clamping blocks.

3. A furnace degassing device as claimed in claim 2, characterized in that: The first end surface of the bearing platform is slidably provided with two slide seats, and the two slide seats are arranged in a one-to-one correspondence with the two first clamping blocks.

4. A furnace degassing device as claimed in claim 3, characterized in that: A threaded rod is rotatably provided on the first end surface of the bearing platform, and the threaded rod penetrates the two slide seats, so that under the action of external force, the threaded rod can link the two slide seats to move toward or away from each other.

5. A furnace degassing device according to any one of claims 2 to 4, characterized in that: The opposite end surfaces of the two first clamping blocks are in a V-shaped structure.

6. A furnace degassing device according to any one of claims 1 to 4, characterized in that: The second pipe clamp includes two detachably connected second clamping blocks, one of which is fixed to the bracket assembly, and the other is movable relative to the bracket assembly for adjusting the size of the second clamping hole formed between the two second clamping blocks.

7. A furnace degassing device as claimed in claim 6, characterized in that: The two second clamping blocks are fixed by a plurality of screws.

8. A furnace degassing device as claimed in claim 1, characterized in that: A plurality of support openings are provided between the first end surface and the second end surface of the bearing platform for supporting the pipeline structure.

9. A furnace degassing device as claimed in claim 1, characterized in that: The first end surface of the carrying platform is provided with a handrail.

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