Online degassing equipment

Abstract

The utility model relates to the technical field of industrial equipment, in particular to online degassing equipment. Which comprises a molten aluminum furnace, a stirring module and a gas supply module, and is characterized in that the stirring module comprises a fixing frame, a linear lead screw is rotatably connected to the fixing frame, a stepping motor is further fixedly installed on the fixing frame, and the driving end of the stepping motor is fixedly connected with one end of the linear lead screw through a coupler; a linear screw rod is fixedly mounted on the base, a screw rod sliding block is slidably connected to the linear screw rod, a stirring shaft is rotatably connected to the screw rod sliding block, a servo motor is fixedly mounted on the screw rod sliding block, the driving end of the servo motor is fixedly connected with one end of the stirring shaft through a coupler, and stirring blades are fixedly mounted at the lower end of the stirring shaft. By means of the equipment, the stirring speed is effectively increased, molten aluminum can be stirred more evenly, and the removal rate of harmful gas is higher.

Description

Technical Field

[0001] The utility model relates to the technical field of industrial equipment, in particular to an online degassing device. Background Art

[0002] During the smelting process of aluminum alloy, aluminum liquid will produce gas, including hydrogen, oxygen and other gases. These gases will bring some harm when they exist in aluminum liquid. For example, the gas forms pores and bubbles in aluminum liquid, which will reduce the density and strength of the casting, resulting in the decline of the mechanical properties of the casting, and in severe cases, the casting will be scrapped. Therefore, effectively removing the gas in aluminum liquid is crucial to ensure product quality. Passing inert gas and stirring the aluminum liquid is a degassing method to remove gas from aluminum liquid. The principle is to inject inert gas (such as nitrogen or argon) into aluminum liquid. The process of passing inert gas can achieve gas replacement and gradually discharge oxygen, hydrogen and other gases in aluminum liquid; while the inert gas is passed, the aluminum liquid is stirred. The stirring process can help the gas to be fully dispersed and mixed in the aluminum liquid, accelerate the escape of gas from the aluminum liquid, and promote the replacement of gas and inert gas. However, the stirring device in the existing online degassing equipment often stirs the aluminum liquid unevenly and has a small range of action, resulting in low utilization of the inert gas and poor degassing effect. The required stirring and degassing time is long, the energy consumption is large, and the economic benefits are low. Utility Model Content

[0003] The utility model overcomes the shortcomings of the prior art and provides an online degassing device.

[0004] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0005] The utility model discloses an online degassing device, comprising an aluminum liquid furnace, a stirring module and a gas supply module, wherein the stirring module comprises a fixed frame, a linear screw rod is rotatably connected to the fixed frame, a stepping motor is also fixedly installed on the fixed frame, and a driving end of the stepping motor is fixedly connected to one end of the linear screw rod through a coupling;

[0006] The linear screw is slidably connected to a screw slider, the screw slider is rotatably connected to a stirring shaft, a servo motor is fixedly mounted on the screw slider, and a driving end of the servo motor is fixedly connected to one end of the stirring shaft through a coupling, and a stirring blade is fixedly mounted on the lower end of the stirring shaft;

[0007] The gas supply module includes a gas storage tank, a first gas supply pipe, a second gas supply pipe and an air pump, one end of the first gas supply pipe is connected to the gas storage tank, and the other end is connected to the air inlet of the air pump; one end of the second gas supply pipe is connected to the aluminum liquid furnace, and the other end is connected to the air outlet of the air pump.

[0008] Furthermore, in a preferred embodiment of the utility model, a first bearing and a second bearing are fixedly mounted on the fixing frame, and the upper and lower ends of the linear screw are respectively sleeved in the first bearing and the second bearing.

[0009] Furthermore, in a preferred embodiment of the utility model, a third bearing is fixedly mounted on the screw slider, and the upper end portion of the stirring shaft is sleeved in the third bearing.

[0010] Furthermore, in a preferred embodiment of the utility model, two guide rods are fixedly mounted on the fixing frame, two guide holes are opened on the screw slider, and the screw slider is sleeved on the guide rods through the guide holes.

[0011] Furthermore, in a preferred embodiment of the present invention, the aluminum liquid furnace is fixed by a first bracket.

[0012] Furthermore, in a preferred embodiment of the present invention, the gas storage tank is fixed by a second bracket.

[0013] Furthermore, in a preferred embodiment of the present invention, the stirring blade is made of graphite.

[0014] Furthermore, in a preferred embodiment of the present invention, inert gas is stored in the gas storage tank.

[0015] Furthermore, in a preferred embodiment of the present invention, the inert gas is nitrogen or argon.

[0016] The utility model solves the defects existing in the background technology, and has the following beneficial effects:

[0017] This equipment can effectively increase the stirring range of the stirring blades, increase the contact range between the stirring blades and the aluminum liquid at different levels, effectively increase the stirring rate, stir the aluminum liquid more evenly, increase the harmful gas removal rate, and improve the quality of the aluminum liquid; at the same time, only one set of stirring blades is needed to achieve a large-range stirring function, which can effectively reduce the resistance between the stirring blades and the aluminum liquid and effectively save energy. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] According to the drawings of various embodiments of the present invention given below, the embodiments of the present invention will be more fully understood. However, this should not be understood as limiting the present invention to specific embodiments, but is only used for explanation and understanding. For ordinary technicians in this field, other drawings can be obtained according to these drawings without creative work.

[0019] Figure 1 It is a schematic diagram of the first three-dimensional structure of the device;

[0020] Figure 2 is a second three-dimensional structural schematic diagram of the device;

[0021] Figure 3 This is a schematic diagram of the gas supply module structure in this equipment;

[0022] In the figure: 101, aluminum liquid furnace; 102, fixed frame; 103, linear screw; 104, stepping motor; 105, screw slider; 106, stirring shaft; 107, servo motor; 108, stirring blade; 109, gas storage tank; 201, first air supply pipe; 202, second air supply pipe; 203, vacuum pump; 204, guide rod; 205, guide hole; 206, first bracket; 207, second bracket. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] In the description of the utility model, the reference to "embodiment", "one embodiment", "some embodiments", or "other embodiments" indicates that the specific features, structures or characteristics described in conjunction with the embodiment are included in at least some embodiments, but not necessarily all embodiments. Multiple occurrences of "embodiment", "one embodiment", or "some embodiments" do not necessarily all refer to the same embodiment. If the specification describes that a component, feature, structure or characteristic "may", "perhaps" or "can" be included, the specific component, feature, structure or characteristic is not necessarily included. If the specification or claim mentions "one" element, it does not mean that there is only one element. If the specification or claim mentions "another" element, it does not exclude the presence of more than one other element. In addition, specific features, structures, functions or characteristics can be combined in one or more embodiments in any suitable manner. For example, the first embodiment can be combined with the second embodiment, as long as the specific features, structures, functions or characteristics associated with the two embodiments are not mutually exclusive.

[0025] In the description of the present invention, unless otherwise specified, the use of ordinal adjectives such as "first", "second", and "third" to describe a common object only refers to different instances of the same object, and does not imply that the objects described in this way must adopt a given order, whether in time, space, order, or any other manner. In the description of the present invention, unless otherwise specified, "plurality" means two or more.

[0026] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0027] like Figure 1-3 As shown, the utility model discloses an online degassing device, including an aluminum liquid furnace 101, a stirring module and a gas supply module, the stirring module includes a fixed frame 102, a linear screw 103 is rotatably connected to the fixed frame 102, a stepper motor 104 is also fixedly installed on the fixed frame 102, and the driving end of the stepper motor 104 is fixedly connected to one end of the linear screw 103 through a coupling;

[0028] The linear screw 103 is slidably connected to a screw slider 105, and a stirring shaft 106 is rotatably connected to the screw slider 105. A servo motor 107 is fixedly installed on the screw slider 105, and a driving end of the servo motor 107 is fixedly connected to one end of the stirring shaft 106 through a coupling, and a stirring blade 108 is fixedly installed at the lower end of the stirring shaft 106;

[0029] The gas supply module includes a gas storage tank 109, a first gas supply pipe 201, a second gas supply pipe 202 and an air pump 203. One end of the first gas supply pipe 201 is connected to the gas storage tank 109, and the other end is connected to the air inlet of the air pump 203; one end of the second gas supply pipe 202 is connected to the aluminum liquid furnace 101, and the other end is connected to the air outlet of the air pump 203.

[0030] It should be noted that when the device is in use, the vacuum pump 203 is first controlled to start, so that the inert gas (nitrogen or argon) in the gas storage tank 109 is pumped into the aluminum liquid furnace 101 along the first gas supply pipe 201 and the second gas supply pipe 202 through the vacuum pump 203, so that the inert gas is in contact with the aluminum liquid. The process of the inert gas introduction can achieve gas replacement and gradually discharge the harmful gas in the aluminum liquid. At the same time, the servo motor 107 is controlled to start, so that the servo motor 107 drives the stirring shaft 106 to rotate, thereby driving the stirring blade 108 to rotate at a high speed; and the stepping motor 104 is controlled to perform regular forward and reverse rotation according to the set program. When the stepping motor 104 rotates forward, it drives the linear screw 103 to rotate counterclockwise, thereby driving the wire The rod slider 105 moves down; when the stepper motor 104 reverses, it drives the linear screw 103 to rotate clockwise, thereby driving the screw slider 105 to move up. In this way, by regularly controlling the forward and reverse rotation of the stepper motor 104, the stirring blade 108 can be driven to move up and down regularly in the aluminum liquid furnace 101. In this way, the stirring range of the stirring blade 108 can be effectively increased, and the contact range of the stirring blade 108 with aluminum liquid at different levels can be increased, which can effectively increase the stirring rate, stir the aluminum liquid more evenly, and have a higher removal rate of harmful gases, thereby improving the quality of the aluminum liquid. At the same time, only one set of stirring blades 108 is needed to realize a large-scale stirring function, which can effectively reduce the resistance between the stirring blade 108 and the aluminum liquid, and can effectively save energy.

[0031] Furthermore, in a preferred embodiment of the present invention, a first bearing and a second bearing are fixedly mounted on the fixing frame 102 , and the upper and lower ends of the linear screw 103 are respectively sleeved in the first bearing and the second bearing.

[0032] It should be noted that the linear screw 103 can effectively rotate through the first bearing and the second bearing.

[0033] Furthermore, in a preferred embodiment of the present invention, a third bearing is fixedly mounted on the screw slider 105, and the upper end of the stirring shaft 106 is sleeved in the third bearing.

[0034] It should be noted that the stirring shaft 106 can effectively rotate through the third bearing.

[0035] Furthermore, in a preferred embodiment of the present invention, two guide rods 204 are fixedly mounted on the fixing frame 102 , two guide holes 205 are opened on the screw slider 105 , and the screw slider 105 is sleeved on the guide rods 204 through the guide holes 205 .

[0036] It should be noted that the guide rod 204 is used to guide and position the screw slider 105 to avoid displacement of the screw slider 105 during the sliding process, thereby improving the reliability of the equipment.

[0037] Furthermore, in a preferred embodiment of the present invention, the aluminum liquid furnace 101 is fixed by a first bracket 206 .

[0038] Furthermore, in a preferred embodiment of the present invention, the gas storage tank 109 is fixed by a second bracket 207 .

[0039] Furthermore, in a preferred embodiment of the present invention, the stirring blade 108 is made of graphite.

[0040] Furthermore, in a preferred embodiment of the present invention, the gas storage tank 109 stores inert gas.

[0041] Furthermore, in a preferred embodiment of the present invention, the inert gas is nitrogen or argon.

[0042] The above is based on the ideal embodiment of the utility model. Through the above description, relevant personnel can make various changes and modifications without deviating from the technical concept of this utility model. The technical scope of this utility model is not limited to the content in the specification, and the technical scope must be determined according to the scope of the claims.

Claims

1. An online degassing device, comprising an aluminum liquid furnace, a stirring module and a gas supply module, characterized in that: The stirring module comprises a fixed frame, a linear screw is rotatably connected to the fixed frame, a stepping motor is fixedly mounted on the fixed frame, and a driving end of the stepping motor is fixedly connected to one end of the linear screw via a coupling; The linear screw is slidably connected to a screw slider, the screw slider is rotatably connected to a stirring shaft, a servo motor is fixedly mounted on the screw slider, and a driving end of the servo motor is fixedly connected to one end of the stirring shaft through a coupling, and a stirring blade is fixedly mounted on the lower end of the stirring shaft; The gas supply module includes a gas storage tank, a first gas supply pipe, a second gas supply pipe and an air pump, one end of the first gas supply pipe is connected to the gas storage tank, and the other end is connected to the air inlet of the air pump; one end of the second gas supply pipe is connected to the aluminum liquid furnace, and the other end is connected to the air outlet of the air pump.

2. An online degassing device according to claim 1, characterized in that: The fixing frame is fixedly mounted with a first bearing and a second bearing, and the upper and lower ends of the linear screw rod are respectively sleeved in the first bearing and the second bearing.

3. The online degassing equipment according to claim 1, characterized in that: A third bearing is fixedly mounted on the screw slider, and the upper end of the stirring shaft is sleeved in the third bearing.

4. The online degassing device according to claim 1, characterized in that: Two guide rods are also fixedly mounted on the fixing frame, and two guide holes are opened on the screw rod slider, and the screw rod slider is sleeved on the guide rods through the guide holes.

5. The online degassing equipment according to claim 1, characterized in that: The aluminum liquid furnace is fixed by a first bracket.

6. The online degassing equipment according to claim 1, characterized in that: The gas storage tank is fixed by a second bracket.

7. The online degassing equipment according to claim 1, characterized in that: The stirring blade is made of graphite.

8. The online degassing equipment according to claim 1, characterized in that: Inert gas is stored in the gas storage tank.

9. An online degassing device according to claim 8, characterized in that: The inert gas is nitrogen or argon.

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