Melting equipment and method capable of reducing burnout of aluminum alloy

Abstract

The present application discloses a melting device and a working method thereof which can reduce the burning loss of alloy aluminum. The melting device comprises a melting furnace, a melting device and a stirring member, which form at least one aluminum liquid chamber and a vertical feeding channel connected to the aluminum liquid chamber. The bottom of the vertical feeding channel is provided with a supporting platform, and the horizontal height of the supporting platform is located at the bottom of the aluminum liquid chamber, so that the softened alloy semi-melt subsequently supported on the supporting platform can be submerged by the aluminum liquid in the aluminum liquid chamber, and the upper end of the vertical feeding channel forms a feeding port, the feeding port, the melting device comprises a melting gun, and the flame formed at the end of the melting gun is configured to be guided from the lower end of the vertical feeding channel to the upper end of the vertical feeding channel via the vertical feeding channel. The melting device is configured to melt the added alloy solid, so as to guide the aluminum liquid in the aluminum liquid holding chamber to continuously flush and submerge the softened alloy semi-melt located on the step, thereby avoiding the surface of the aluminum ingot from contacting the external air.

Description

Technical Field

[0001] The present application relates to the field of equipment for producing cast aluminum alloys, and in particular to a melting device and method thereof that can reduce the burning loss of aluminum alloys. Background Art

[0002] Aluminum is a silvery white metal with a low density of about 2.6 / cm 3 About the density of steel, copper or brass (7.839 / cm 3 , 8.939 / cm 3 ) is about 1 / 3 of the original material. It has good electrical and thermal conductivity, high plasticity, and good corrosion resistance.

[0003] Because of its many advantages, aluminum alloy is favored by users in various industries. For example, in the field of electric vehicles. Traditional electric vehicles use hard plastic or steel to make the body, but steel is heavy, and the same volume of vehicle consumes more energy when driving. For electric vehicles made of hard plastic, their weight is light, but the safety performance is poor.

[0004] The aluminum alloy manufacturing equipment in the prior art, i.e., the melting furnace, usually burns the aluminum ingot under a high temperature flame until the aluminum ingot melts into aluminum liquid and flows into the melting furnace. This method keeps the aluminum ingot in an oxygen-rich environment before melting into aluminum liquid, resulting in a high aluminum burnout rate. However, if the aluminum ingot is directly placed in the aluminum liquid, although it can avoid the aluminum ingot being exposed to an oxygen-rich environment, the melting efficiency of the aluminum ingot is low, and the aluminum ingot needs a longer time to melt. Summary of the invention

[0005] An advantage of one embodiment of the present application is that it provides a melting device and a method thereof that can reduce the burnout of alloy aluminum, wherein the melting device that can reduce the burnout of alloy aluminum can continuously melt alloy aluminum ingots and die-casting return materials, and while ensuring the aluminum melting efficiency, it can effectively reduce the burnout rate of aluminum.

[0006] An advantage of an embodiment of the present application is that it provides a melting device and a method thereof that can reduce the burnout of aluminum alloy, wherein the melting device that can reduce the burnout of aluminum alloy can reduce the slag formed by aluminum oxidation during the melting of aluminum in the melting furnace.

[0007] In order to achieve at least one of the above advantages, the present application provides a melting device capable of reducing the burning loss of aluminum alloy, the melting device capable of reducing the burning loss of aluminum alloy comprising:

[0008] A melting furnace, which forms at least one aluminum liquid chamber and a vertical feeding channel connected to the aluminum liquid chamber, wherein the bottom of the vertical feeding channel has a supporting platform, wherein the horizontal height of the supporting platform is located at the bottom of the aluminum liquid chamber, so that the alloy semi-melt that is subsequently supported on the supporting platform and softened can be submerged by the aluminum liquid in the aluminum liquid chamber, and the upper end of the vertical feeding channel forms a feeding port, so that the user can put the alloy solid from the feeding port;

[0009] A smelting device, the smelting device comprising a smelting gun, the flame formed at the end of the smelting gun being arranged to be guided from the lower end of the vertical feed channel via the vertical feed channel to the upper end of the vertical feed channel, wherein the smelting device is arranged to melt the added alloy solid to heat the alloy solid to a semi-molten state, thereby causing it to fall onto the supporting platform of the aluminum liquid chamber;

[0010] A stirring member, wherein the stirring member is configured to guide the aluminum liquid in the aluminum liquid storage chamber to continuously flush and submerge the small-sized alloy semi-melt located on the step, thereby preventing the surface of the alloy semi-melt from contacting the external air.

[0011] According to one embodiment of the present application, a stop wall is formed between the vertical feed channel and the aluminum liquid chamber, wherein the bottom of the stop wall extends laterally in a direction away from the aluminum liquid chamber to form the supporting platform, wherein a connecting channel is formed between the supporting platform and the bottom wall of the aluminum liquid chamber.

[0012] According to an embodiment of the present application, the smelting device comprises a plurality of the smelting guns, wherein the plurality of the smelting guns are arranged in a longitudinal direction and are all directed toward a lower end portion of the vertical feed channel.

[0013] According to an embodiment of the present application, the melting furnace forms at least one aluminum liquid chamber and a constant temperature chamber connected to the aluminum liquid chamber. A thermal insulation wall is formed between the aluminum liquid chamber and the constant temperature chamber, wherein the thermal insulation wall is configured to be made of a thermal insulation and high temperature resistant material, and at least one connecting channel passing through the thermal insulation wall is configured between the constant temperature chamber and the aluminum liquid chamber, so that the constant temperature chamber and the aluminum liquid chamber are connected to each other.

[0014] According to an embodiment of the present application, the constant temperature chamber is provided with at least one liquid taking port, wherein a user can take the aluminum liquid from the liquid taking port.

[0015] According to one embodiment of the present application, the melting furnace further forms a transverse liquid conducting groove, wherein the transverse liquid conducting groove is arranged at the high end of the constant temperature chamber, and one end of the transverse liquid conducting groove is arranged to be connected to the upper part of the constant temperature chamber, and the transverse liquid conducting groove is arranged to extend in a transverse direction away from the constant temperature chamber so as to at least partially protrude from the constant temperature chamber, and the other end of the transverse liquid conducting groove can form a liquid outlet.

[0016] According to an embodiment of the present application, the volume of the constant temperature chamber is much smaller than the volume of the aluminum liquid chamber.

[0017] According to one embodiment of the present application, the high-efficiency integrated melting and protection furnace also includes a liquid taking component, wherein the liquid taking component is arranged above the liquid taking port of the constant temperature chamber, and is arranged to take a predetermined amount of aluminum liquid from the constant temperature chamber through the liquid taking port, and the liquid taking component is arranged to move from the liquid taking port to above the transverse liquid guiding groove.

[0018] According to one embodiment of the present application, the melting equipment capable of reducing the burning loss of alloy aluminum also includes at least one heater, wherein the heater is arranged in the constant temperature chamber, and the heater includes a temperature detector, a heating component and a controller, wherein the temperature detector is configured to detect the temperature of the aluminum liquid in the constant temperature chamber, and the heating component and the temperature detector are both communicatively connected to the controller, wherein when the temperature detector detects that the temperature of the aluminum liquid in the constant temperature chamber is lower than a preset threshold value, the controller will control the heating component to heat the aluminum liquid in the constant temperature chamber, so that the temperature of the aluminum liquid in the constant temperature chamber is higher than the preset value.

[0019] In order to achieve at least one of the above advantages, the present application provides a working method of a melting device capable of reducing the burning loss of alloy aluminum, and the working method of the melting device capable of reducing the burning loss of alloy aluminum comprises:

[0020] Softening the alloy solid to be melted stuck in the vertical feed channel so that the softened alloy solid falls to the bearing platform at the bottom of the feed channel;

[0021] The softened semi-molten alloy solid on the supporting platform is flushed by stirring the aluminum liquid. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 A perspective view of molten aluminum that can reduce burnout of alloy aluminum is shown.

[0023] Figure 2 A cross-sectional view showing one direction of the local structure of molten aluminum that can reduce burnout of alloy aluminum.

[0024] Figure 3A cross-sectional view at an angle of the entire molten aluminum is shown which can reduce the burning loss of the alloy aluminum.

[0025] Figure 4 A cross-sectional view from another angle showing the entire molten aluminum that can reduce burnout of alloy aluminum.

[0026] Figure 5 A structural block diagram of the molten aluminum portion structure that can reduce alloy aluminum burnout is shown. DETAILED DESCRIPTION

[0027] The following description is used to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are only examples, and those skilled in the art can think of other obvious variations. The basic principles of the present invention defined in the following description can be applied to other embodiments, variations, improvements, equivalents, and other technical solutions that do not deviate from the spirit and scope of the present invention.

[0028] Those skilled in the art should understand that, in the disclosure of the present invention, the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, the above terms should not be understood as limiting the present invention.

[0029] It is to be understood that the term "one" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element may be one, while in another embodiment, the number of the element may be multiple, and the term "one" should not be understood as a limitation on the quantity.

[0030] When an existing aluminum melting furnace is smelting aluminum alloy, the alloy solids are directly formed into aluminum liquid by high-temperature melting, so that the alloy solids are exposed to an oxygen-rich environment for a long time. As a result, after the alloy is fixed and melted into aluminum liquid, a part of it is oxidized into alumina. The melting point of alumina is much higher than that of aluminum. As a result, after the aluminum ingot is melted, more alloy solid slag is formed. At least a part of these alloy solid slags is alumina, and the formed alumina is the burnt part of the aluminum ingot. The more alumina slag is, the higher the burnt rate of the aluminum ingot is, and the correspondingly more slag is.

[0031] refer to Figures 1 to 5 To this end, the present application provides a melting device that can reduce the burnout of aluminum alloy, wherein the melting device that can reduce the burnout of aluminum alloy can not only improve the melting efficiency of the alloy solid, but also reduce the burnout rate of aluminum.

[0032] Specifically, the melting equipment that can reduce the burning loss of alloy aluminum includes a melting furnace 10, wherein the melting furnace 10 forms at least one aluminum liquid chamber 101 and a vertical feed channel 102 connected to the aluminum liquid chamber 101, wherein the bottom of the vertical feed channel 102 has a supporting platform 103, wherein the horizontal height of the supporting platform 103 is located at the bottom of the aluminum liquid chamber 101, so that the alloy semi-melt that is subsequently supported on the supporting platform 103 and softened can be submerged by the aluminum liquid in the aluminum liquid chamber 101.

[0033] Furthermore, at least one smelting device 20 is arranged on the upper side opposite to the supporting platform 103, wherein the smelting device 20 is configured to melt the added alloy solid to heat and soften the alloy solid to a semi-molten state, so that the solid alloy in the semi-molten state can subsequently fall onto the supporting platform 103 and be submerged by the aluminum liquid in the aluminum liquid chamber 101, thereby forming a shaped aluminum liquid in the aluminum liquid chamber 101.

[0034] It is worth mentioning that, in one embodiment, the smelting device 20 includes a smelting gun 21. The flame formed at the end of the smelting gun 21 is configured to be guided from the lower end of the vertical feeding channel 102 to the upper end of the vertical feeding channel 102 via the vertical feeding channel 102. The upper end of the vertical feeding channel 102 forms a feed port 104, wherein the feed port 104 is configured for users to feed alloy solids.

[0035] In one embodiment, at the beginning, the volume of the alloy solid introduced from the feed port 104 is larger than the cross-sectional size of the feed port 104, so that the alloy solid can be stuck in the feed port 104 when introduced from the feed port 104. As the alloy solid stuck in the feed port 104 is heated to near its melting point by the smelting gun 21, the alloy solid will be softened, and the softened alloy solid will shrink in volume and soften, and will further fall directly onto the support platform 103 along the vertical feed channel 102, so as to be further submerged by the aluminum liquid in the aluminum liquid chamber 101, so that the semi-molten alloy solid supported on the support platform 103 after being softened can be effectively cut off from the external oxygen, thereby effectively reducing the burning rate of aluminum.

[0036] Preferably, the melting device capable of reducing the burning loss of alloy aluminum further comprises a stirring member 30, wherein the stirring member 30 is configured to guide the aluminum liquid in the aluminum liquid chamber 101 to continuously flush and submerge the small-sized semi-molten alloy solid on the carrier 103, thereby preventing the surface of the aluminum ingot from contacting the outside air. In this way, the semi-molten alloy solid can be subsequently melted by the moving aluminum liquid, which can not only prevent the aluminum in the semi-molten alloy solid from being oxidized by long-term contact with the air, thereby reducing the burning loss rate of aluminum in the entire alloy solid, but also enable the softened semi-molten alloy solid to melt quickly.

[0037] More specifically, a stop wall 40 is formed between the vertical feed channel 102 and the aluminum liquid chamber 101, wherein the bottom of the stop wall 40 extends laterally in a direction away from the aluminum liquid chamber 101 to form the supporting platform 103, wherein a connecting channel 105 is formed between the supporting platform 103 and the bottom wall of the aluminum liquid chamber 101, so that the aluminum liquid chamber 101 can be connected with the vertical feed channel 102 through the connecting channel 105.

[0038] It is worth mentioning that the smelting device 20 includes a plurality of smelting guns 21, wherein the plurality of smelting guns 21 are arranged in the longitudinal direction and are all directed toward the lower end of the vertical feed channel 102, so that the flame ejected from the smelting gun 21 can be guided from the lower end of the vertical feed channel 102 to the feed port 104 at the high end of the vertical feed channel 102 to soften the alloy solid located at the feed port 104.

[0039] More preferably, the cross-sectional size of the vertical feed channel 102 gradually decreases from the feed port 104 to the support platform 103. Through such a setting, on the one hand, the smaller aluminum ingots can be effectively clamped to prevent the smaller alloy solids from falling directly onto the support platform without being softened, thereby preventing the alloy solid melting efficiency from being too low. On the other hand, such a size change can effectively prevent the high-temperature flame ejected from the smelting gun 21 from ejecting out of the feed port 104 too quickly. More importantly, in this way, the softened semi-molten alloy solid can slowly slide from the feed port 104 to the support platform 103, which can not only reduce the aluminum burnout rate, but also prevent the excessively large semi-molten alloy solids from falling onto the support platform and reducing the aluminum melting efficiency.

[0040] The melting furnace 10 forms a constant temperature chamber 106 at least in communication with the aluminum liquid chamber 101. A thermal insulation wall 50 is formed between the aluminum liquid chamber 101 and the constant temperature chamber 106, wherein the thermal insulation wall 50 is made of a thermal insulation and high temperature resistant material.

[0041] In addition, at least one connecting passage 107 passing through the insulation wall 50 is provided between the constant temperature chamber 106 and the aluminum liquid chamber 101, so that the constant temperature chamber 106 and the aluminum liquid chamber 101 are connected to each other. The aluminum liquid in the aluminum liquid chamber 101 is introduced into the constant temperature chamber 106 through the connecting passage 107.

[0042] Furthermore, the melting furnace 10 has at least one liquid taking port 1061 connected to the constant temperature chamber 106 , wherein a user can take the aluminum liquid from the liquid taking port 1061 .

[0043] Furthermore, the melting furnace 10 further forms a transverse liquid guiding groove 108, wherein the transverse liquid guiding groove 108 is arranged at the upper end of the constant temperature chamber 106, and one end of the transverse liquid guiding groove 108 is arranged to be connected to the upper part of the constant temperature chamber 106, and in addition, the transverse liquid guiding groove 108 is arranged to extend in a transverse direction away from the constant temperature chamber 106, so as to at least partially protrude from the constant temperature chamber 106. In this way, the other end of the transverse liquid guiding groove 108 can form a liquid outlet, so that the user can take the aluminum liquid from the other end of the transverse liquid guiding groove 108.

[0044] It is worth mentioning that the volume of the constant temperature chamber 106 is much smaller than that of the aluminum liquid chamber 101. It can be understood by those skilled in the art that, since the constant temperature chamber 106 is provided, and the constant temperature chamber 106 is isolated from the aluminum liquid chamber 101 by the insulation wall 50, the temperature of the molten liquid in the constant temperature chamber 106 will be lower than that of the aluminum liquid chamber 101. In this way, the aluminum liquid chamber 101 can be smelting aluminum liquid all the time, and the user can take the aluminum liquid from the liquid taking port 1061 of the constant temperature chamber 106. In this way, the high-efficiency melting and protection integrated furnace can continuously melt aluminum ingots, and can also provide users with aluminum liquid while continuously producing aluminum liquid. More importantly, since the high-efficiency integrated melting and protecting furnace can continuously smelt aluminum ingots, the high-efficiency integrated melting and protecting furnace can maximize the production efficiency of molten aluminum, and since the high-efficiency integrated melting and protecting furnace does not need to cool the molten aluminum in the entire molten aluminum chamber 101 when taking molten aluminum before the user can take it, heat loss and waste can be avoided, and energy can be effectively saved.

[0045] Furthermore, the high-efficiency melting and protection integrated furnace further includes a liquid taking member 60, wherein the liquid taking member 60 is disposed above the liquid taking port 1061 of the constant temperature chamber 106, and is configured to take a predetermined amount of aluminum liquid from the constant temperature chamber 106 through the liquid taking port 1061, and the liquid taking member 60 is configured to move from the liquid taking port 1061 to above the transverse liquid guiding groove 108. In this way, the user can automatically take the aluminum liquid from the constant temperature chamber 106 through the liquid taking member 60.

[0046] Preferably, the melting device capable of reducing the burning loss of alloy aluminum further comprises at least one heater 70, wherein the heater 70 is arranged in the constant temperature chamber 106. The heater 70 comprises a temperature detector 71, a heating component 72 and a controller 73, wherein the temperature detector 71 is arranged to detect the temperature of the aluminum liquid in the constant temperature chamber 106. Both the heating component 72 and the temperature detector 71 are communicatively connected to the controller 73, wherein when the temperature detector 71 detects that the temperature of the aluminum liquid in the constant temperature chamber 106 is lower than a preset threshold value, the controller 73 controls the heating component 72 to heat the aluminum liquid in the constant temperature chamber 106, thereby making the temperature of the aluminum liquid in the constant temperature chamber 106 higher than the preset value.

[0047] It is worth mentioning that the temperature corresponding to the preset value is set to be not lower than the temperature at which the aluminum liquid is kept in a liquid state. It can be understood by those skilled in the art that when the aluminum ingot formed by smelting the smelting device 20 is melted into aluminum liquid, the high-temperature aluminum liquid is first contained in the aluminum liquid chamber 101, and then the aluminum liquid flows to the constant temperature chamber 106 through the connecting channel 107. Since the aluminum liquid in the constant temperature chamber 106 is only connected to the aluminum liquid chamber 101 through the connecting channel 107, and the aluminum liquid chamber 101 and the constant temperature chamber 106 are insulated by the insulation wall 50, the temperature of the aluminum liquid in the constant temperature chamber 106 can be reduced to the temperature of the aluminum liquid that the user needs to take. The aluminum liquid formed by the smelting device 20 can continuously flow into the aluminum liquid chamber 101. In this way, the melting device that can reduce the burning loss of alloy aluminum can realize uninterrupted aluminum ingot melting without affecting the normal use of aluminum liquid by the user.

[0048] The user can put the aluminum ingot into the feed port 104 , wherein the high-temperature flame ejected from the flame nozzle of the smelting gun 21 can be directed to the feed port 104 to soften the aluminum ingot put into the feed port 104 until the aluminum ingot located at the feed port 104 falls into the lower end of the vertical feed channel 102 .

[0049] It should be understood by those skilled in the art that the embodiments of the present invention described above and shown in the accompanying drawings are only examples and do not limit the present invention. The advantages of the present invention have been fully and effectively achieved. The functional and structural principles of the present invention have been demonstrated and explained in the embodiments, and the embodiments of the present invention may be deformed or modified in any way without departing from the principles.

Claims

1. A melting device capable of reducing the burning loss of aluminum alloy, characterized in that: The melting equipment capable of reducing the burning loss of alloy aluminum comprises: A melting furnace, which forms at least one aluminum liquid chamber and a vertical feeding channel connected to the aluminum liquid chamber, wherein the bottom of the vertical feeding channel has a supporting platform, wherein the horizontal height of the supporting platform is located at the bottom of the aluminum liquid chamber, so that the alloy semi-melt that is subsequently supported on the supporting platform and softened can be submerged by the aluminum liquid in the aluminum liquid chamber, and the upper end of the vertical feeding channel forms a feeding port, so that the user can put the alloy solid from the feeding port; A smelting device, the smelting device comprising a smelting gun, the flame formed at the end of the smelting gun being arranged to be guided from the lower end of the vertical feed channel via the vertical feed channel to the upper end of the vertical feed channel, wherein the smelting device is arranged to melt the added alloy solid to heat the alloy solid to a semi-molten state, thereby causing it to fall onto the supporting platform of the aluminum liquid chamber; A stirring member, wherein the stirring member is configured to guide the aluminum liquid in the aluminum liquid storage chamber to continuously flush and submerge the small-sized alloy semi-melt located on the step, thereby preventing the surface of the alloy semi-melt from contacting the external air.

2. The melting device capable of reducing the burning loss of alloy aluminum according to claim 1, characterized in that: A stop wall is formed between the vertical feed channel and the aluminum liquid chamber, wherein the bottom of the stop wall extends laterally in a direction away from the aluminum liquid chamber to form the supporting platform, wherein a connecting channel is formed between the supporting platform and the bottom wall of the aluminum liquid chamber.

3. The melting device capable of reducing the burning loss of alloy aluminum according to claim 1 or 2, characterized in that: The smelting device comprises a plurality of smelting guns, wherein the plurality of smelting guns are arranged in a longitudinal direction and are all oriented toward a lower end portion of the vertical feed channel.

4. The melting device capable of reducing the burning loss of aluminum alloy according to claim 1 or 2, characterized in that: The melting furnace forms at least one aluminum liquid chamber and a constant temperature chamber connected to the aluminum liquid chamber. A thermal insulation wall is formed between the aluminum liquid chamber and the constant temperature chamber, wherein the thermal insulation wall is set to be made of a thermal insulation and high temperature resistant material, and at least one connecting channel passing through the thermal insulation wall is set between the constant temperature chamber and the aluminum liquid chamber, so that the constant temperature chamber and the aluminum liquid chamber are connected to each other.

5. The melting device capable of reducing the burning loss of alloy aluminum according to claim 1, characterized in that: The cross-sectional size of the vertical feed channel gradually decreases from the feed port to the supporting platform.

6. The melting device capable of reducing the burning loss of alloy aluminum according to claim 4, characterized in that: The constant temperature chamber is provided with at least one liquid taking port, wherein a user can take the aluminum liquid from the liquid taking port.

7. The melting device capable of reducing the burning loss of alloy aluminum according to claim 1, characterized in that: The melting furnace also forms a transverse liquid conducting groove, wherein the transverse liquid conducting groove is arranged at the high end of the constant temperature chamber, and one end of the transverse liquid conducting groove is arranged to be connected to the upper part of the constant temperature chamber, and the transverse liquid conducting groove is arranged to extend in the transverse direction away from the constant temperature chamber so as to at least partially protrude from the constant temperature chamber, and the other end of the transverse liquid conducting groove can form a liquid outlet.

8. The melting device capable of reducing the burning loss of alloy aluminum according to claim 4, characterized in that: The volume of the constant temperature chamber is much smaller than the volume of the aluminum liquid chamber.

9. The melting device capable of reducing the burning loss of alloy aluminum according to claim 4, characterized in that: The high-efficiency melting and protection integrated furnace also includes a liquid taking component, wherein the liquid taking component is arranged above the liquid taking port of the constant temperature chamber, and is arranged to take a predetermined amount of aluminum liquid from the constant temperature chamber through the liquid taking port, and the liquid taking component is arranged to move from the liquid taking port to above the transverse liquid guide groove.

10. A method for operating a melting device capable of reducing burnout of aluminum alloy according to any one of claims 1 to 9, characterized in that: The working method of the melting device capable of reducing the burning loss of alloy aluminum comprises: Softening the alloy solid to be melted stuck in the vertical feed channel so that the softened alloy solid falls to the bearing platform at the bottom of the feed channel; The softened semi-molten alloy solid on the supporting platform is flushed by stirring the aluminum liquid.

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