Air inlet device of refining equipment for double-zero foil

Abstract

The utility model relates to the technical field of alloy refining, in particular to an air inlet device of refining equipment for double-zero foils, which comprises an air inlet pipeline, the air inlet pipeline comprises a vertical pipeline and an arc-shaped pipeline component which are communicated and perpendicular to each other, the other end of the vertical pipeline is arranged on the working ground and communicated with an external air tank, and the arc-shaped pipeline component has radian. The other end of the arc-shaped pipeline assembly communicates with the industrial furnace, a first adjusting valve and a first pressure reducing valve are sequentially arranged on the arc-shaped pipeline assembly, and a first pressure gauge is arranged on the first pressure reducing valve. According to the gas inlet device of the refining equipment for the double-zero foil, argon enters the industrial furnace through the vertical pipeline and the arc-shaped pipeline assembly, pressure adjustment is conducted on the argon through the first adjusting valve and the first pressure reducing valve, and stable gas inlet of the argon is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of alloy refining, in particular to an air inlet device for a refining device for double-zero foil. Background Art

[0002] The double-zero foil is manufactured by being processed by a refining device, and has good strength and toughness, and is usually used for packaging medicines, foods, household items, cosmetics, etc. The so-called double-zero foil is a foil with two zeros after the decimal point when its thickness is measured in mm, and is usually an aluminum foil with a thickness less than 0.0075 mm. The refining device is one of the basic guarantee measures for producing high-quality castings (such as double-zero foil). Refining the alloy liquid can effectively prevent the castings from being porous and the formation of gas holes, inclusions, etc., which directly affects the physical properties, mechanical properties and service performance of the castings.

[0003] At present, the double-zero foil used for packaging medicines is not allowed to have slag inclusions and gas holes during casting. Therefore, the requirements for the gas inside the melt of the industrial furnace (as a refining device) for producing double-zero foil are very strict. When the existing gas pipeline introduces argon into the industrial furnace, the argon gas source of some enterprises is far from the industrial furnace, and the argon gas is transmitted over a long distance. The argon gas will be lost during the long-distance transmission, which will cause the pressure of the argon gas in the gas pipeline to be unstable, resulting in poor refining effect. Therefore, the existing air inlet device for the refining device for double-zero foil cannot meet the manufacturing requirements of double-zero foil. There is an urgent need for an air inlet device for a refining device for double-zero foil to solve the above problems. Summary of the Utility Model

[0004] In order to solve the technical problem that the pressure of argon gas in the gas pipeline is unstable when the existing gas pipeline introduces argon into the industrial furnace, the utility model provides an air inlet device for a refining device for double-zero foil. The argon gas enters the industrial furnace through a vertical pipeline and an arc pipeline assembly. A first pressure gauge is arranged on the pipeline close to the industrial furnace to monitor the pipeline pressure, and then the argon gas is pressure-regulated through a first regulating valve and a first pressure reducing valve to realize stable intake of argon gas, thereby effectively improving the refining effect of the industrial furnace to meet the manufacturing requirements of double-zero foil products.

[0005] The utility model provides an air inlet device for a refining device for double-zero foil, including an air inlet pipeline. The air inlet pipeline includes a vertical pipeline and an arc pipeline assembly that are connected and perpendicular to each other. The other end of the vertical pipeline is arranged on the working ground and is connected to an external gas tank. The arc pipeline assembly has a radian, and the other end of the arc pipeline assembly is connected to the industrial furnace. A first regulating valve and a first pressure reducing valve are sequentially arranged on the arc pipeline assembly, and a first pressure gauge is arranged on the first pressure reducing valve. The flow rate of the argon gas is controlled and regulated through the first regulating valve and the first pressure reducing valve to ensure that the pressure of the argon gas remains stable during transmission, so that the argon gas remains stable when entering the industrial furnace.

[0006] Further, the arc-shaped pipe assembly includes a horizontal pipe and an arc-shaped pipe. The arc-shaped pipe has a curvature. One end of the arc-shaped pipe is connected to the industrial furnace, and the other end is connected to the horizontal pipe. The end of the horizontal pipe away from the arc-shaped pipe is communicated with and perpendicular to the vertical pipe. The first regulating valve and the first pressure reducing valve are arranged on the horizontal pipe.

[0007] Further, the air inlet device further includes a hose. The hose is connected between the horizontal pipe and the vertical pipe. Quick connectors are arranged at both ends of the hose. Quick connection sockets matching the quick connectors are arranged at one end of the horizontal pipe and one end of the vertical pipe respectively. Each quick connection socket is snap-connected with the quick connector.

[0008] Further, the air inlet device further includes a fixing assembly. The fixing assembly includes a telescopic column, a supporting block and a pressing block. The telescopic column includes a supporting column and a supporting leg. The supporting column is arranged on the working ground. An inner cylinder is arranged on the supporting column. One end of the supporting leg is slidably arranged in the inner cylinder, and the other end is rotatably connected to the supporting block. A first bolt is threadedly connected to the supporting column and passes through the inner cylinder to abut against the supporting leg. The supporting block and the pressing block are detachably connected and fix a part of the hose between them. After the supporting block and the pressing block are fixedly connected, the supporting block and the pressing block can always fix a part of the hose, further making the intake of argon stable.

[0009] Further, a U-shaped slot is arranged at one end of the supporting leg, and fixing holes and pin holes are arranged on both side walls of the U-shaped slot. A rotating shaft is arranged on the supporting block, and both ends of the rotating shaft pass through the two fixing holes respectively. The outer diameter of the middle part of the rotating shaft is larger than the outer diameter of the end part of the rotating shaft. A plurality of blind holes are arranged on both side walls at the middle part of the rotating shaft. A pin is arranged through one of the blind holes and the pin hole. Threaded holes and arc-shaped slots are arranged on both the supporting block and the pressing block. The threaded holes on the supporting block and the pressing block are fixedly connected by a second bolt. A fixing area is formed between the arc-shaped slots on the supporting block and the pressing block. A part of the hose is clamped in the fixing area. The supporting block and the pressing block are fixedly connected through the threaded holes and the second bolt, so as to fix a part of the hose.

[0010] Further, the air inlet device further includes a flow meter, a concentration detector and a leakage alarm. The flow meter, the concentration detector and the leakage alarm are all arranged on the horizontal pipe.

[0011] Further, the lower part of the vertical pipe bulges outwards to form a filtering chamber. The upper and lower parts of the filtering chamber are a regular cone and an inverted cone respectively, and a filter screen is arranged in the middle of the filtering chamber. The filter screen can filter out the impurities contained in the argon gas, and the impurities are intercepted below the filter screen. When the gas supply stops, the impurities can still fall to the bottom of the vertical pipe by gravity.

[0012] Further, a cleaning port is also arranged at the lower part of the vertical pipe, and the cleaning port is located below the filtering chamber. A sealing door is rotatably arranged at the cleaning port of the vertical pipe through a hinge. When the sealing door is opened, the impurities at the bottom of the vertical pipe can be cleaned out through the cleaning port.

[0013] Further, the other end of the vertical pipe is arranged on the working ground and is communicated with an external gas tank through a connecting pipe. The connection position between the vertical pipe and the connecting pipe is located between the cleaning port and the filtering chamber.

[0014] Compared with the prior art, the utility model has the following technical effects:

[0015] Argon gas enters the industrial furnace through the vertical pipe and the arc-shaped pipe assembly. A first pressure gauge is arranged on the pipeline close to the industrial furnace to monitor the pipeline pressure, and then the flow rate of the argon gas is controlled and adjusted through the first regulating valve and the first pressure reducing valve to ensure that the argon gas maintains a stable pressure during the transmission process, and further makes the argon gas stable when entering the industrial furnace. The vertical pipe is set to a certain height, so that the heights of the horizontal pipe and the arc-shaped pipe are lifted. Because the horizontal pipe has a certain length and the arc-shaped pipe has a curvature, and the arc-shaped pipe is communicated with the air inlet of the bottom of the industrial furnace, after the argon gas is transmitted through the horizontal pipe and the arc-shaped pipe in sequence, the air inlet of the argon gas is stable, which makes the argon gas enter the industrial furnace more smoothly and realizes the stable air inlet of the argon gas. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic structural diagram of an air inlet device of a refining device for double-zero foil of the utility model;

[0017] Figure 2 is a schematic side view structure diagram of a fixing component of the utility model;

[0018] Figure 3 is a schematic structural diagram of a filter screen of the utility model;

[0019] The reference numerals in the drawings are:

[0020] 1. Air inlet pipeline; 11. Vertical pipe; 12. Horizontal pipe; 13. Arc-shaped pipe; 14. Connecting pipe; 15. Hose; 16. Flowmeter; 17. Concentration detector; 18. Leakage alarm;

[0021] 2. Industrial furnace;

[0022] 3. First regulating valve

[0023] 4. First pressure reducing valve

[0024] 5. First pressure gauge

[0025] 6. Fixing assembly; 61. Telescopic column; 611. Support column; 612. Support leg; 62. Support block; 621. Rotating shaft; 63. Pressing block; 64. Pin

[0026] 7. Filter screen Detailed implementation manners

[0027] The present utility model will be further described below in conjunction with the accompanying drawings and specific implementation manners.

[0028] As Figures 1 to 3 shown, the intake device includes an intake pipeline 1, which includes a vertical pipeline 11 and an arc pipeline assembly that are connected and perpendicular to each other. The other end of the vertical pipeline 11 is arranged on the working ground and is connected to an external gas tank through a connecting pipe 14. An external gas source is stored in the external gas tank. The arc pipeline assembly has a radian, and the other end of the arc pipeline assembly is connected to an industrial furnace 2; a first regulating valve 3 and a first pressure reducing valve 4 are sequentially arranged on the arc pipeline assembly, and a first pressure gauge 5 is arranged on the first pressure reducing valve 4. Among them, both the first regulating valve 3 and the first pressure reducing valve 4 are electronic valves, which improves the automation degree of the intake device in this embodiment.

[0029] The height of the vertical pipeline 11 in this embodiment is 100 cm, and the radian of the arc pipeline assembly is set to 150°. Among them, the height of the vertical pipeline 11 and the radian of the arc pipeline assembly can be designed according to the intake port and the height of the furnace door of the industrial furnace 2, and are not limited to the values set in this embodiment. This embodiment adds a first regulating valve 3 and a first pressure reducing valve 4 to control and adjust the flow rate of argon through the first regulating valve 3 and the first pressure reducing valve 4, ensuring that the pressure of argon remains stable during transmission, and further making the argon stable when entering the industrial furnace 2. In the prior art, the external gas pipeline usually adopts a right-angle bending method to connect with the industrial furnace melt, so the refined gas (argon) is unstable when entering the industrial furnace melt. In this embodiment, the vertical pipeline 11 and the arc pipeline assembly are perpendicular to each other, and the vertical pipeline 11 is set at a certain height, so that the height of the arc pipeline assembly is lifted; and because the arc pipeline assembly has a radian, the arc pipeline assembly can then be connected to the intake port at the bottom of the industrial furnace 2. After the argon is transmitted through the arc pipeline assembly, the intake of argon is stable.

[0030] For the intake device with the above structure, argon gas enters the industrial furnace 2 through the vertical pipeline 11 and the arc-shaped pipeline assembly. The pressure of the argon gas is regulated by the first regulating valve 3 and the first pressure reducing valve 4 to achieve stable intake of argon gas, thereby effectively improving the refining effect of the industrial furnace 2 to meet the manufacturing requirements of double-zero foil products.

[0031] As an implementable mode, the arc-shaped pipeline assembly includes a horizontal pipeline 12 and an arc-shaped pipeline 13. The arc-shaped pipeline 13 has a radian. One end of the arc-shaped pipeline 13 is connected to the industrial furnace 2, and the other end is connected to the horizontal pipeline 12. The end of the horizontal pipeline 12 far from the arc-shaped pipeline 13 is communicated with and perpendicular to the vertical pipeline 11. The first regulating valve 3 and the first pressure reducing valve 4 are arranged on the horizontal pipeline 12. Specifically, the radian of the arc-shaped pipeline 13 is 150°. When there are multiple intake ports on the industrial furnace 2, multiple arc-shaped pipeline assemblies can be correspondingly arranged, which can further improve the production efficiency of the industrial furnace 2. The vertical pipeline 11 is set at a certain height so that the heights of the horizontal pipeline 12 and the arc-shaped pipeline 13 are lifted. Since the horizontal pipeline 12 has a certain length and the arc-shaped pipeline 13 has a radian, and the arc-shaped pipeline 13 is communicated with the intake port at the bottom of the industrial furnace 2, after the argon gas is transmitted through the horizontal pipeline 12 and the arc-shaped pipeline 13 in sequence, the intake of the argon gas is stabilized, which makes the argon gas enter the industrial furnace 2 more smoothly and realizes stable intake of argon gas. Specifically, when the arc-shaped pipeline 13 guides the argon gas into the industrial furnace 2, the radian of the arc-shaped pipeline 13 itself can prevent the argon gas from flowing back.

[0032] As an implementable mode, the intake device further includes a hose 15. The hose 15 is connected between the horizontal pipeline 12 and the vertical pipeline 11. Quick connectors are arranged at both ends of the hose 15. Quick sockets matching the quick connectors are arranged at one end of the horizontal pipeline 12 and one end of the vertical pipeline 11 respectively, and each quick socket is clamped with the quick connector. Among them, the length of the hose 15 is not limited and is set according to requirements. The hose 15 is generally used only when the distance between the industrial furnace 2 and the intake pipeline 1 is far. The hose 15 is connected between the horizontal pipeline 12 and the vertical pipeline 11 to meet the intake requirement of the industrial furnace 2. Refer to Figure 1 , for a schematic illustration of the hose 15. It should be understood that in actual use, the hose 15 will contact the working ground. The first quick connector and the second quick connector are provided to facilitate the connection of the hose 15 with the horizontal pipeline 12 and the vertical pipeline 11.

[0033] As an implementable mode, the intake device further includes a fixing assembly 6. The fixing assembly 6 includes a telescopic column 61, a supporting block 62, and a pressing block 63. The telescopic column 61 includes a support column 611 and support legs 612. The support column 611 is disposed on the working ground. An inner cylinder is provided on the support column 611. One end of the support leg 612 is slidably disposed in the inner cylinder, and the other end is rotatably connected to the supporting block 62. A first bolt is threadedly connected to the support column 611 and passes through the inner cylinder and abuts against the support leg 612. When the first bolt abuts against the support leg 612, the support leg 612 cannot slide in the inner cylinder. When the first bolt is separated from the support leg 612, the support leg 612 can slide in the inner cylinder. The supporting block 62 and the pressing block 63 are detachably connected and fix a part of the hose 15 therebetween. The supporting block 62 can be rotated to adjust its position. After the supporting block 62 is fixed, the supporting block 62 and the pressing block 63 are fixedly connected again. The supporting block 62 and the pressing block 63 can always fix a part of the hose 15.

[0034] In this embodiment, two groups of the fixing assemblies 6 are provided. The two groups of the fixing assemblies 6 fix one end of the hose 15 close to the horizontal pipe 12 and the other end of the hose 15 close to the vertical pipe 11.

[0035] When using the hose 15, in order to prevent the hose 15 from directly sagging, which may cause the connection between the hose 15 and the horizontal pipe 12 and the connection between the hose 15 and the vertical pipe 11 to bend, the fixing assembly is used to support both ends of the hose 15, which plays a role in smooth transition for the hose 15 and further stabilizes the argon intake.

[0036] As an implementable manner, the U-shaped slot of the support leg 612 is provided with fixing holes and pin holes on both side walls of the U-shaped slot. The support block 62 is provided with a rotating shaft 621, and both ends of the rotating shaft 621 pass through the two fixing holes respectively. The outer diameter of the middle part of the rotating shaft 621 is larger than the outer diameter of the end part of the rotating shaft 621. A plurality of blind holes are provided on the side walls at both ends of the middle part of the rotating shaft 621, and the plurality of blind holes are circumferentially arranged on the side wall of the rotating shaft 621. A pin 64 is inserted through one of the blind holes and the pin hole; both the support block 62 and the pressing block 63 are provided with screw holes and arc-shaped slots. The screw holes on the support block 62 and the pressing block 63 are fixedly connected by a second bolt. A fixing area is formed between the arc-shaped slots on the support block 62 and the pressing block 63, and a part of the hose 15 is stuck in the fixing area. When the pin 64 is fixed on one of the blind holes and the pin hole, the rotating shaft 621 cannot rotate. When the pin 64 is removed from one of the blind holes and the pin hole, the rotating shaft 621 can rotate. After the position of the rotating shaft 621 is determined, the pin 64 is inserted into another blind hole and the pin hole again to realize the rotational adjustment of the position of the rotating shaft 621. The rotation of the rotating shaft 621 drives the support block 62 to rotate, thereby realizing the change of the positions of the support block 62 and the pressing block 63 relative to the support leg 612. Finally, the hose 15 can be fixed, and the hose 15 has a smooth transition. The support block 62 and the pressing block 63 are fixedly connected through the screw holes and the second bolt, so as to fix a part of the hose 15.

[0037] As an implementable manner, the intake device further includes a flow meter 16, a concentration detector 17 and a leakage alarm 18. The flow meter 16, the concentration detector 17 and the leakage alarm 18 are all arranged on the horizontal pipeline 12. The flow meter 16 can record the specific flow rate of the argon gas entering the industrial furnace 2, thereby facilitating the statistics of the total flow rate of the argon gas entering the industrial furnace 2 to realize the control of the working process of the industrial furnace 2. The concentration detector 17 displays the concentration of the argon gas at this time. When the concentration of the argon gas is too high or too low, the external gas source can be adjusted. When the argon gas leaks, the alarm gives an alarm prompt to ensure that the intake device operates in a safe state.

[0038] As an implementable manner, the lower part of the vertical pipeline 11 bulges outwards to form a filtering chamber. The upper and lower parts of the filtering chamber are a regular cone and an inverted cone respectively. A filter screen 7 is arranged in the middle of the filtering chamber. The filter screen 7 can filter out the impurities contained in the argon gas, and the impurities are intercepted below the filter screen 7. When the gas supply stops, the impurities can also fall to the bottom of the vertical pipeline 11 by gravity.

[0039] Further, a cleaning port is provided at the lower part of the vertical pipe 11, and the cleaning port is located below the filtering chamber. A sealing door is rotatably arranged at the cleaning port of the vertical pipe 11 through a hinge. When the sealing door is opened, impurities at the bottom of the vertical pipe 11 can be cleaned out through the cleaning port. When the sealing door is closed, argon gas cannot leak through the cleaning port. Wherein, the other end of the vertical pipe 11 is arranged on the working ground and is communicated with an external gas tank through a connecting pipe 14, and the connection position of the vertical pipe 11 and the connecting pipe 14 is located between the cleaning port and the filtering chamber.

[0040] The above embodiments are only the preferred embodiments of the present invention, which are only used to explain the present invention and do not limit the scope of implementation of the present invention. For those skilled in the art of this technology, of course, other implementation manners can be easily made by means of substitution or change according to the technical content disclosed in this specification. Therefore, all changes and improvements made in the principle and process conditions of the present invention should be included within the scope of the patent application of the present invention.

Claims

1. An air intake device for a double zero foil refining device, comprising an air intake pipeline (1), characterized in that: The air intake pipeline (1) comprises a vertical pipeline (11) and an arc-shaped pipeline assembly which are connected and perpendicular to each other. The other end of the vertical pipeline (11) is arranged on the working ground and is connected to an external gas tank. The arc-shaped pipeline assembly has an arc. The other end of the arc-shaped pipeline assembly is connected to an industrial furnace (2). A first regulating valve (3) and a first pressure reducing valve (4) are arranged in sequence on the arc-shaped pipeline assembly. The first pressure reducing valve (4) is provided with a first pressure gauge (5).

2. The air intake device according to claim 1, characterized in that: The arc-shaped pipeline assembly comprises a horizontal pipeline (12) and an arc-shaped pipeline (13); the arc-shaped pipeline (13) has an arc; one end of the arc-shaped pipeline (13) is connected to the industrial furnace (2) and the other end is connected to the horizontal pipeline (12); one end of the horizontal pipeline (12) away from the arc-shaped pipeline (13) is connected to the vertical pipeline (11) and is perpendicular to the vertical pipeline (11); the first regulating valve (3) and the first pressure reducing valve (4) are arranged on the horizontal pipeline (12).

3. The air intake device according to claim 2, characterized in that: The air intake device also includes a hose (15), which is connected between the horizontal pipe (12) and the vertical pipe (11), and both ends of the hose (15) are provided with quick-connect plugs, and one end of the horizontal pipe (12) and one end of the vertical pipe (11) are provided with quick-connect sockets matching the quick-connect plugs, and each of the quick-connect sockets is snap-connected with the quick-connect plug.

4. The air intake device according to claim 3, characterized in that: The air intake device also includes a fixing assembly (6), the fixing assembly (6) includes a telescopic column (61), a support block (62) and a pressure block (63), the telescopic column (61) includes a support column (611) and a support leg (612), the support column (611) is arranged on a working surface, an inner cylinder is arranged on the support column (611), one end of the support leg (612) is slidably arranged in the inner cylinder, and the other end is rotatably connected to the support block (62), a first bolt is threadedly connected to the support column (611), and the first bolt passes through the inner cylinder and abuts against the support leg (612), the support block (62) and the pressure block (63) are detachably connected and a portion of the hose (15) is fixed therebetween.

5. The air intake device according to claim 4, characterized in that: A U-shaped slot is provided at one end of the support leg (612), and fixing holes and pin holes are provided on both side walls of the U-shaped slot; a rotating shaft (621) is provided on the support block (62), and both ends of the rotating shaft (621) pass through the two fixing holes respectively; the outer diameter of the middle part of the rotating shaft (621) is larger than the outer diameter of the end parts of the rotating shaft (621); a plurality of blind holes are provided on both end walls of the middle part of the rotating shaft (621), and a pin (64) is passed through one of the blind holes and the pin hole; screw holes and arc-shaped slots are provided on the support block (62) and the pressing block (63); the screw holes on the support block (62) and the pressing block (63) are fixedly connected by second bolts; a fixing area is formed between the arc-shaped slots on the support block (62) and the pressing block (63), and part of the hose (15) is stuck in the fixing area.

6. The air intake device according to claim 2, characterized in that: The air intake device further comprises a flow meter (16), a concentration detector (17) and a leakage alarm (18), and the flow meter (16), the concentration detector (17) and the leakage alarm (18) are all arranged on the horizontal pipeline (12).

7. The air intake device according to claim 1, characterized in that: The lower part of the vertical pipe (11) protrudes outwards and forms a filter chamber, the upper part and the lower part of the filter chamber are respectively in the shape of a positive cone and an inverted cone, and a filter net (7) is arranged in the middle of the filter chamber.

8. The air intake device according to claim 7, characterized in that: The lower part of the vertical pipe (11) is also provided with a cleaning port, and the cleaning port is located below the filter chamber. A sealing door is provided at the cleaning port of the vertical pipe (11) through a hinged rotation.

9. The air intake device according to claim 8, characterized in that: The other end of the vertical pipeline (11) is arranged on the working ground and is connected to an external gas tank through a connecting pipe (14); the connection between the vertical pipeline (11) and the connecting pipe (14) is located between the cleaning port and the filter chamber.

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