Ventilation pipe sealing assembly for cast rolling degassing box

Abstract

The utility model provides a breather pipe sealing assembly for a cast-rolling degassing box. The breather pipe sealing assembly comprises a box body, a dispersive air brick located on a bottom plate of the box body and a gas storage tank located on the outer wall of the box body. A pipeline opening is formed in a bottom plate of the box body, the bottom of the dispersive air brick is connected with an air inlet pipe, the air inlet pipe extends to the outer side of the box body through the pipeline opening to be connected with a breather pipe, and the breather pipe is communicated with a gas storage tank. Wherein an I-shaped sealing piece is embedded in an inlet of the pipeline opening, an air channel is formed in the I-shaped sealing piece in the axial direction, the top of the air channel is communicated with the pipeline opening, the bottom of the air channel is communicated with the conveying pipe, the other end of the conveying pipe is in sealed connection with an inflation sealing ring, and the inflation sealing ring is arranged on the surface of a pipe body of the air inlet pipe in a sleeving mode; a transparent protective cover is arranged between the bottom of the box body and the air inlet pipe, and the inflation sealing ring is located in the transparent protective cover. When leakage occurs, gas enters the inflatable sealing ring through the air pipeline, so that the inflatable sealing ring is inflated and expanded to be in contact with the transparent protective cover, and a good sealing effect is achieved.

Description

Technical Field

[0001] This utility model relates to the technical field of vent pipe sealing components, and in particular to a vent pipe sealing component for a cast-rolled degassing box. Background Technology

[0002] Molten aluminum is a high-temperature liquid alloyed from primary aluminum, either directly or with other alloying elements, formed through high-temperature smelting. During the smelting process, oxide inclusions and gas absorption occur, contaminating the molten aluminum to varying degrees. In particular, the molten aluminum and aluminum alloys contain large amounts of hydrogen, metallic, and non-metallic inclusions. If these harmful substances are not removed before casting, they will form casting defects such as porosity, inclusions, and looseness inside and on the surface of the casting, severely affecting its physical, chemical, mechanical, and deep-processing properties, resulting in a large amount of waste. Therefore, molten aluminum requires purification treatment. Currently, there are two methods for molten aluminum purification: in-furnace purification and external purification.

[0003] Among them, external furnace purification technology is an online degassing and slag removal technology used in the aluminum molten casting process. External furnace degassing and purification is essentially a bubble flotation method, which generates a large number of bubbles in the aluminum molten material. Utilizing the partial pressure difference between hydrogen in the aluminum molten material and in the bubbles, hydrogen in the aluminum molten material continuously enters the bubbles and floats to the surface, eventually escaping with the bubbles, thus achieving hydrogen removal. Simultaneously, the rising bubbles carry away some slag inclusions, achieving slag-liquid separation. Currently, inert gas is typically injected into the permeable bricks through an inert gas storage tank, dispersing the inert gas into the aluminum molten material in the form of small bubbles. In this process, the sealing of the vent pipe is particularly important. Existing vent pipes have poor sealing performance when supplying gas to the permeable bricks, and gas leaks are not easily observed visually. Therefore, this utility model proposes a vent pipe sealing assembly for a casting and rolling degassing box to solve the above problems. Utility Model Content

[0004] The purpose of this utility model is to provide a sealing assembly for a vent pipe in a casting and rolling degassing box, so as to solve the problem mentioned in the background art that the existing vent pipe has poor sealing effect when conveying gas to diffuse permeable bricks, and it is not easy to visually observe that gas leakage has occurred in the vent pipe.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A vent pipe sealing assembly for a cast-rolled degassing box includes a box body, a diffuse permeable brick located on the bottom plate of the box body, and a gas storage tank located on the outer wall of the box body.

[0007] The bottom plate of the box has a pipe opening, and the bottom of the diffuse permeable brick is connected to an air inlet pipe. The air inlet pipe extends through the pipe opening to the outside of the box and connects to a vent pipe, which is connected to the gas storage tank.

[0008] in,

[0009] An I-type seal is embedded in the inlet of the pipe opening. An air channel is opened along the axial direction of the I-type seal. The top of the air channel is connected to the pipe opening, and the bottom is connected to one end of the delivery pipe. The other end of the delivery pipe is sealed to an inflatable sealing ring. The inflatable sealing ring is sleeved on the surface of the air inlet pipe.

[0010] A transparent protective cover is provided between the bottom of the box and the air inlet pipe, and the inflatable sealing ring is located inside the transparent protective cover.

[0011] Preferably, the surface of the air intake pipe located inside the pipe opening is fitted with multiple elastic sealing rings.

[0012] Preferably, the surface of the air intake pipe located inside the pipe opening is provided with a plurality of first annular grooves, and the elastic sealing rings are fitted into the first annular grooves one by one.

[0013] Preferably, the surface of the intake pipe is spirally connected to the type I seal.

[0014] Preferably, the air intake pipe is further provided with a second annular groove, and the inflatable sealing ring is fitted inside the second annular groove.

[0015] Preferably, the delivery pipe is located at the bottom of the type I seal and is an integral structure with the type I seal.

[0016] Preferably, one or more conveying pipes are evenly arranged.

[0017] Preferably, the diffuse permeable bricks are evenly distributed in multiple portions.

[0018] Compared with the prior art, the beneficial effects of this utility model are as follows: An I-type seal is set at the inlet of the pipe. The I-type structure of the seal can play a sealing role. An air channel is opened on the I-type seal, which is connected to the inflatable sealing ring. When gas leakage occurs, the gas will enter the inflatable sealing ring through the air channel, causing the inflatable sealing ring to inflate and expand, thereby contacting the inner wall of the transparent protective cover to achieve further sealing and thus achieve a good sealing effect. At the same time, through the contact area between the inflatable sealing ring and the transparent protective cover, the gas leakage when the air inlet pipe delivers inert gas to the diffuse permeable brick can be directly observed. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model;

[0021] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0022] Figure 3 A top view of the Type I sealing ring provided in an embodiment of this utility model;

[0023] Figure 4 This is a schematic diagram of the intake pipe provided in an embodiment of the present utility model.

[0024] Reference numerals: 10, housing; 101, pipe opening; 20, permeable diffused brick; 30, gas storage tank; 40, air inlet pipe; 401, first annular groove; 402, second annular groove; 403, external thread; 50, vent pipe; 60, type I seal; 601, air passage; 602, delivery pipe; 70, inflatable sealing ring; 80, transparent protective cover; 90, elastic sealing ring. Detailed Implementation

[0025] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of this invention. Therefore, the drawings and description are considered exemplary in nature and not restrictive.

[0026] In the description of this utility model, it should be understood that the terms "upper", "lower", "top", "bottom", "inner", "outer", "axial", "circumferential", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use, or the orientation or positional relationship commonly understood by those skilled in the art. They are only used to facilitate the description of this utility model and to simplify the description, and are not intended to 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.

[0027] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0028] In this utility model, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0029] The following disclosure provides many different embodiments or examples for implementing various structures of this invention. To simplify the disclosure, specific examples of components and arrangements are described below. These are merely examples and are not intended to limit the scope of the invention. Furthermore, reference numerals and / or letters may be repeated in different examples; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. In addition, examples of various specific processes and materials are provided in this invention, but those skilled in the art will recognize the application of other processes and / or the use of other materials.

[0030] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0031] like Figures 1-4 As shown, this utility model embodiment provides a vent pipe sealing assembly for a casting and rolling degassing box, including a box body 10, a diffuse permeable brick 20 located on the bottom plate of the box body 10, and a gas storage tank 30 located on the outer wall of the box body 10.

[0032] The bottom plate of the box 10 has a pipe opening 101, and the bottom of the diffuse permeable brick 20 is connected to an air inlet pipe 40. The air inlet pipe 40 extends through the pipe opening 101 to the outside of the box 10 and is connected to a vent pipe 50. The vent pipe 50 is connected to the gas storage tank 30.

[0033] in,

[0034] An I-type seal 60 is embedded in the inlet of the pipe port 101. The I-type seal 60 has an air passage 601 in the axial direction. The top of the air passage 601 is connected to the pipe port 101, and the bottom is connected to one end of the delivery pipe 602. The other end of the delivery pipe 602 is sealed to an inflatable sealing ring 70. The inflatable sealing ring 70 is sleeved on the surface of the air inlet pipe 40.

[0035] A transparent protective cover 80 is provided between the bottom of the box 10 and the air inlet pipe 40, and the inflatable sealing ring 70 is located inside the transparent protective cover 80.

[0036] Specifically, the delivery pipe 602 is located at the bottom of the type I seal 60 and is an integral structure with the type I seal 60, thereby ensuring the sealing between the air passage 601 and the delivery pipe 602; in addition, the air passage 601 may be, but is not limited to, an interlayer arranged circumferentially on the type I seal 60.

[0037] An I-type seal 60 is installed at the inlet of pipe 101. The I-type structure of the seal can play a sealing role. An air passage 601 is opened on the I-type seal 60, which is connected to the inflatable sealing ring 70. When gas leakage occurs, the gas will enter the inflatable sealing ring 70 through the air passage 601, causing the inflatable sealing ring 70 to inflate and expand, thereby contacting the inner wall of the transparent protective cover 80 to achieve further sealing and thus achieve a good sealing effect. At the same time, through the contact area between the inflatable sealing ring 70 and the transparent protective cover 80, the gas leakage when the air inlet pipe 40 delivers inert gas to the diffuse permeable brick 20 can be directly observed.

[0038] To further ensure the sealing effect, multiple elastic sealing rings 90 are fitted on the surface of the air intake pipe 40 inside the pipe opening 101.

[0039] Since the internal pressure of the pipe opening 101 will increase when gas leakage occurs, in order to prevent the elastic sealing ring 90 from shifting and affecting the sealing performance, the surface of the pipe body of the air inlet pipe 40 located inside the pipe opening 101 is provided with multiple first annular grooves 401, and the elastic sealing ring 90 is fitted into the first annular grooves 401 one by one.

[0040] In the event of a gas leak, in order to ensure that the gas can enter the inflatable sealing ring 70 from the air passage 601, the connection and sealing performance between the air inlet pipe 40 and the type I seal 60 also need to be considered. Specifically, the surface of the air inlet pipe 40 is provided with an external thread 403, and the air inlet pipe 40 is spirally connected to the type I seal 60 through the external thread 403.

[0041] Since the inflatable sealing ring 70 may shift during inflation, a second annular groove 402 is provided on the air inlet pipe 40. The inflatable sealing ring 70 is fitted into the second annular groove 402 to ensure that the position of the inflatable sealing ring 70 is fixed and to avoid affecting the sealing effect.

[0042] Furthermore, one or more delivery pipes 602 are evenly provided, wherein multiple delivery pipes 602 can make the inflatable sealing ring 70 expand evenly, ensuring consistent sealing effect everywhere.

[0043] In order to generate enough bubbles to quickly and evenly remove hydrogen and inclusions from the molten aluminum, multiple diffuse permeable bricks 20 are evenly distributed.

[0044] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A vent pipe sealing assembly for a casting and rolling degassing box, comprising a box body, a diffusive vent brick located at the bottom plate of the box body, and a gas storage tank located at the outer wall of the box body, characterized in that: a pipe opening is formed in the bottom plate of the box body, the diffusive vent brick is connected with an air inlet pipe at the bottom, the air inlet pipe extends to the outside of the box body through the pipe opening and is connected with a vent pipe, and the vent pipe is connected with the gas storage tank in communication; wherein, an I-shaped sealing element is embedded at the inlet of the pipe opening, the I-shaped sealing element is provided with an air passage in the axial direction, the top of the air passage is in communication with the pipe opening, and the bottom is in communication with one end of a conveying pipe, the other end of the conveying pipe is sealingly connected with an inflatable sealing ring, and the inflatable sealing ring is sleeved on the pipe body surface of the air inlet pipe; a transparent protective cover is arranged between the bottom of the box body and the air inlet pipe, and the inflatable sealing ring is located in the transparent protective cover.

2. The vent tube seal assembly for a casting and degassing box of claim 1, wherein: A plurality of elastic sealing rings are sleeved on the pipe body surface of the air inlet pipe in the pipe opening.

3. The vent tube seal assembly for a casting and degassing box of claim 2, wherein: A plurality of first annular clamping grooves are formed on the pipe body surface of the air inlet pipe in the pipe opening, and the elastic sealing rings are correspondingly sleeved in the first annular clamping grooves.

4. The vent tube seal assembly for a casting purging box of claim 1, wherein: The pipe body surface of the air inlet pipe is screw-connected with the I-shaped sealing element.

5. The vent tube seal assembly for a casting purging box of claim 1, wherein: A second annular clamping groove is formed on the air inlet pipe, and the inflatable sealing ring is sleeved in the second annular clamping groove.

6. The vent tube seal assembly for a casting and degassing box of claim 1, wherein: The conveying pipe is arranged at the bottom of the I-shaped sealing element and is an integrated structure with the I-shaped sealing element.

7. The vent tube seal assembly for a casting and degassing box of claim 1, wherein: The conveying pipe is uniformly provided with one or more.

8. The vent tube seal assembly for a casting gas box of claim 1, wherein: The diffusive vent brick is uniformly provided with a plurality of.

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