A preparation device for aluminum alloy composite material

Abstract

The present invention belongs to the technical field of aluminum alloy manufacturing, and particularly relates to a preparation device for aluminum alloy composite materials. The preparation device includes a smelting furnace shell, a smelting component, a heating controller, a material discharge component, a purification component, a first exhaust pipe, a second exhaust pipe, an acid leaching component and a wire; the smelting component includes a furnace box, a resistance heating plate, and a first exhaust fan; the furnace box is installed in the smelting furnace shell, the resistance heating plate is located on the inner wall of the bottom of the furnace box, and the resistance heating plate is electrically connected to the heating controller through a wire, and the heating controller is installed on the inner wall of the smelting furnace shell; a first stirring mechanism is installed in the furnace box; the first exhaust fan is fixedly installed on the inner wall of the furnace box, and the first exhaust fan is connected to one end of the first exhaust pipe; the present invention can reduce environmental pollution, reduce costs, improve the utilization rate of raw materials, and realize the automatic unloading function.

Description

Technical Field

[0001] The invention belongs to the technical field of aluminum alloy manufacturing, and in particular relates to a preparation device for aluminum alloy composite materials. Background Art

[0002] Aluminum alloy is an alloy based on aluminum with a certain amount of other alloying elements added. It is one of the light metal materials. In addition to the general properties of aluminum, aluminum alloy also has some properties of other alloying metals due to the different types and quantities of alloying elements added.

[0003] The density of aluminum alloy is 2.63-2.85 g / cm3, with high strength (σb is 110-650 MPa), specific strength close to that of high alloy steel, specific stiffness exceeding that of steel, and good casting performance and plastic processing performance.

[0004] In the preparation process of aluminum alloy, smelting is a very important step, because the quality of the aluminum alloy itself is directly affected by the smelting effect. Aluminum alloy will produce a large amount of waste gas during the smelting process, which contains harmful substances such as carbon monoxide, sulfur dioxide and dust. These harmful substances will cause great harm to the environment. The traditional smelting device has poor waste gas purification effect. It can only filter some harmful substances such as sulfur dioxide in the waste gas, but it is difficult to flush and clean the dust in the waste gas, resulting in the exhaust gas still containing a large amount of harmful substances such as dust.

[0005] In addition, during the smelting process of aluminum alloy, only 65-75% of the aluminum molecules in the raw aluminum are extracted. After the smelting work is completed, the aluminum ash at the bottom of the furnace still contains a large amount of aluminum molecules. Traditional smelting equipment is difficult to extract the aluminum molecules in the aluminum ash, resulting in a large amount of waste of raw materials.

[0006] When unloading raw aluminum and recycled materials, the decision to unload is usually based on the temperature in the furnace box. Usually, the furnace box temperature is between 725-750℃, but when the raw aluminum and recycled materials are insufficient, the temperature in the furnace will rise sharply. When it reaches above 800℃, there will be certain safety risks and damage to the furnace box itself. In the past, employees judged the temperature of the furnace box by themselves and unloaded the materials manually, which not only increased the labor intensity, but also had poor manual operation accuracy. Summary of the invention

[0007] In view of the above problems, the present invention provides a preparation device for aluminum alloy composite materials, the preparation device comprising a smelting furnace shell, a smelting component, a heating controller, a material discharge component, a purification component, a first exhaust pipe, a second exhaust pipe, an acid leaching component and a conductor;

[0008] The smelting assembly includes a furnace box, a resistance heating plate, and a first induced draft fan; the furnace box is installed in the outer shell of the smelting furnace, the resistance heating plate is located on the inner wall of the bottom of the furnace box, and the resistance heating plate is electrically connected to the heating controller through a wire, and the heating controller is installed on the inner wall of the outer shell of the smelting furnace; a first stirring mechanism is installed in the furnace box; the first induced draft fan is fixedly installed on the inner wall of the furnace box, and the first induced draft fan is connected to one end of the first exhaust pipe; a return material feed pipe is connected to the furnace box, and the other end of the return material feed pipe passes through the outside of the outer shell of the smelting furnace;

[0009] The material discharge assembly is installed on the top of the smelting furnace shell, and the material discharge assembly is connected to the furnace box through a group of material discharge pipes; the purification assembly is located on one side of the smelting furnace shell, and the other end of the first exhaust pipe is connected to the purification assembly;

[0010] The acid leaching assembly includes a fourth shell, an acid leaching discharge pipe and a grid-type solenoid valve; the fourth shell is located on one side of the smelting furnace shell, and the two ends of the second exhaust pipe are respectively connected to the fourth shell and the purification assembly; an aluminum slag feed port is provided on the top of the fourth shell; a second stirring mechanism is installed in the fourth shell, and a liquid inlet is provided on the outer wall of the fourth shell; one end of the acid leaching discharge pipe is connected to the bottom of the fourth shell, and a second electric butterfly valve is fixedly installed on the other end; the grid-type solenoid valve is fixedly installed in the acid leaching discharge pipe.

[0011] Preferably, an electric door machine is provided at the bottom of the inner wall of one side of the furnace box, a guide plate is fixedly installed on the electric door machine, and the other end of the guide plate penetrates to the outside of the outer shell of the smelting furnace;

[0012] The first stirring mechanism includes a first motor, a first rotating rod and a first stirring blade; the first motor is fixedly mounted on a side wall of the furnace box, the output end of the first motor passes through the furnace box, and is transmission-connected to the first rotating rod through a coupling, the other end of the first rotating rod is rotationally connected to the inner wall of the furnace box on the other side away from the first motor through a bearing seat, and the first stirring blade is fixedly mounted on the first rotating rod.

[0013] Preferably, the feed assembly comprises a second housing, a sealing cover, a first feed pipe, a flow counter, a second feed pipe and a first electric butterfly valve;

[0014] The second shell is fixedly mounted on the top of the smelting furnace shell, and the sealing cover is located on the top of the second shell; a storage cavity is opened in the second shell, and one end of the first discharge pipe is connected to the bottom of the storage cavity; the flow counter is mounted on the first discharge pipe; both ends of the second discharge pipe are respectively connected to the second shell and the furnace box; the first electric butterfly valve is mounted on the second discharge pipe; and the first discharge pipe is located directly above the second discharge pipe.

[0015] Preferably, the purification assembly includes a third shell, a water film purification mechanism, a float purification mechanism, a clean air outlet pipe and a clean air connecting pipe;

[0016] The third shell is located on one side of the smelting furnace shell, and the water film purification mechanism and the float purification mechanism are both located in the third shell, and the water film purification mechanism and the float purification mechanism are connected through a purified gas connecting pipe; the other end of the first exhaust gas pipe is connected to the water film purification mechanism; one end of the clean gas outlet pipe is connected to the float purification mechanism, and the other end passes through the outside of the third shell.

[0017] Preferably, the water film purification mechanism includes a throat, a water film return material feed pipe, a high-pressure nozzle and a second induced-air fan;

[0018] A water film purification chamber is provided in the third shell; the throat is installed on the third shell, one end of the throat is connected with the first exhaust pipe and the second exhaust pipe, and the other end is connected with the water film return material feed pipe; the diameter of the water film return material feed pipe is smaller than the throat, and the other end of the water film return material feed pipe is connected with the water film purification chamber; the high-pressure nozzle is located in the water film purification chamber, and the water supply pipe of the high-pressure nozzle passes through the outside of the third shell; the height of the high-pressure nozzle is higher than the water film return material feed pipe; a first water outlet is provided at the bottom of one side wall of the water film purification chamber; the second induced draft fan is fixedly installed on the inner wall of the water film purification chamber, and the second induced draft fan is connected with the purified air connecting pipe.

[0019] Preferably, the float purification mechanism comprises a first float plate, a second float plate and two groups of shower heads;

[0020] A float purification chamber is provided in the third shell, and the other end of the purified air connecting pipe is connected to the float purification chamber; the first float plate and the second float plate are both located in the float purification chamber, the density of the second float plate is greater than that of the first float plate, and the height of the second float plate is higher than that of the first float plate, and the height of the first float plate is higher than that of the purified air connecting pipe; the two groups of shower heads are respectively located directly above the first float plate and the second float plate, and the water supply pipes of the two groups of shower heads extend to the outside of the third shell; a second water outlet is provided at the bottom of the side wall of the float purification chamber.

[0021] Preferably, the second stirring mechanism comprises a second motor, a second rotating rod and a second stirring blade;

[0022] The second motor is fixedly mounted on an outer wall of one side of the fourth shell, and an output end of the second motor passes through the fourth shell and is transmission-connected to the second rotating rod through a coupling; the other end of the second rotating rod is rotationally connected to an inner wall of a side of the fourth shell away from the second motor through a bearing seat; the second stirring blade is fixedly mounted on the second rotating rod.

[0023] Preferably, the preparation device further comprises a monitoring component, and the monitoring component comprises an external thermometer and an external barometer;

[0024] The external thermometer and the external barometer are both fixedly mounted on an outer wall of one side of the outer shell of the smelting furnace, and the probes of the external thermometer and the external barometer are both inserted into the furnace box.

[0025] Preferably, a first sealed door is provided on the outer shell of the smelting furnace; a second sealed door is provided on the furnace box, and the first sealed door is located directly outside the second sealed door;

[0026] A vacuum pump is installed on the outer wall of the smelting furnace shell, and an air pipe of the vacuum pump penetrates into the furnace box.

[0027] Preferably, the preparation device further comprises a control panel, which is electrically connected to the smelting component, the heating controller, the feeding component, the purification component, the acid leaching component, the vacuum pump and the monitoring component through electric wires.

[0028] The present invention has the following advantages:

[0029] 1. Through the purification components, the waste gas is purified by water film purification and float ball purification respectively, which can not only neutralize the harmful gases in the waste gas, but also filter the dust, improve the purification quality of the waste gas and reduce environmental pollution.

[0030] 2. Use the acid leaching component to soak the smelted aluminum ash in clean water and sulfuric acid solution in turn, so that the aluminum molecules in the aluminum ash can be fully extracted, thereby improving the utilization rate of raw materials and reducing costs.

[0031] 3. The temperature in the furnace box of the smelting component is monitored in real time through the monitoring component. When the temperature in the furnace box reaches the preset temperature, a signal will be sent, and the unloading component will be started through the control panel to start unloading, so as to realize the automatic unloading function of the unloading component and improve the delivery accuracy.

[0032] Other features and advantages of the present invention will be described in the following description, and partly become apparent from the description, or understood by practicing the present invention. The purpose and other advantages of the present invention can be realized and obtained by the structures pointed out in the description, claims and drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0034] Figure 1 A schematic structural diagram of a preparation device according to an embodiment of the present invention is shown;

[0035] Figure 2 A schematic cross-sectional view of a smelting furnace shell according to an embodiment of the present invention is shown;

[0036] Figure 3 A cross-sectional schematic diagram of a smelting assembly according to an embodiment of the present invention is shown;

[0037] Figure 4 A cross-sectional schematic diagram of a blanking assembly according to an embodiment of the present invention is shown;

[0038] Figure 5 A cross-sectional schematic diagram of a purification assembly according to an embodiment of the present invention is shown;

[0039] Figure 6 It shows a schematic structural diagram of a water film purification mechanism according to an embodiment of the present invention;

[0040] Figure 7 It shows a structural schematic diagram of a float purification mechanism according to an embodiment of the present invention;

[0041] Figure 8 A schematic cross-sectional view of an acid leaching assembly according to an embodiment of the present invention is shown;

[0042] Fig. 9 A schematic structural diagram of a monitoring component according to an embodiment of the present invention is shown.

[0043] In the figure: 1. Melting furnace shell; 2. First sealed box door; 3. Melting assembly; 301. Furnace box; 302. Resistance heating plate; 303. First motor; 304. First rotating rod; 305. First stirring blade; 306. Guide plate; 307. First induced fan; 308. Feed pipe for recycled materials; 309. Electric door machine; 4. Heating controller; 5. Feeding assembly; 501. Second shell; 502. Sealing cover; 503. Storage chamber; 504. First feeding pipe; 505. Flow counter; 506. Second feeding pipe; 507. First electric butterfly valve; 6. Purification assembly; 601. Third shell; 602. Water film purification mechanism; 6021. Throat; 6022. Water film feeding pipe for recycled materials; 6023. Water film purification chamber; 6024. High pressure nozzle; 6025. First Water outlet; 6026, second induced fan; 603, float purification mechanism; 6031, float purification chamber; 6032, first float plate; 6033, second float plate; 6034, shower; 6035, second water outlet; 604, clean air outlet pipe; 605, clean air connecting pipe; 7, first exhaust pipe; 8, acid leaching component; 801, fourth shell; 802, liquid inlet; 803, second motor; 804, second rotating rod; 805, second stirring blade; 806, acid leaching discharge pipe; 807, grid-type solenoid valve; 808, second electric butterfly valve; 809, aluminum slag feed port; 9, second exhaust pipe; 10, wire; 11, control panel; 12, vacuum pump; 13, second sealed box door; 14, monitoring component; 1401, external thermometer; 1402, external barometer. DETAILED DESCRIPTION

[0044] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0045] The embodiment of the present invention provides a preparation device for aluminum alloy composite materials, the preparation device comprising a smelting furnace shell 1, a material discharge assembly 5, a purification assembly 6, a first exhaust pipe 7, a second exhaust pipe 9 and an acid leaching assembly 8. For example, Figure 1 As shown, the material discharge assembly 5 is fixedly installed on the top of the smelting furnace shell 1, and the material discharge assembly 5 is connected to the interior of the smelting furnace shell 1. The raw materials for smelting can be put into the smelting assembly in the smelting furnace shell 1 through the material discharge assembly 5.

[0046] The purification component 6 and the acid leaching component 8 are both located on one side of the smelting furnace shell 1, and the purification component 6 is connected to the smelting furnace shell 1 through the first exhaust pipe 7. When the smelting component smelts the raw materials, the waste gas generated enters the purification component 6 through the first exhaust pipe 7, and then the purification component 6 processes the waste gas to reduce the pollution of the waste gas to the environment. The acid leaching component 8 is connected to the purification component 6 through the second exhaust pipe 9. After the smelting component smelts the raw materials, the aluminum ash generated still contains a large amount of aluminum molecules. The aluminum molecules in the aluminum ash are extracted by the acid leaching component 8, which reduces the waste of raw materials and improves the efficiency of smelting.

[0047] The preparation device further includes a control panel 11. The control panel 11 is mounted on the smelting furnace shell 1, and the control panel 11 is electrically connected to the feed assembly 5, the purification assembly 6, and the acid leaching assembly 8 through electric wires. The control panel 11 can be used to control the operation of the feed assembly 5, the purification assembly 6, and the acid leaching assembly 8.

[0048] The preparation device further includes a smelting component 3, a heating controller 4, a conductor 10, a vacuum pump 12 and a monitoring component 14. For example, Figure 2 As shown, the smelting assembly 3 is installed in the smelting furnace shell 1. The smelting assembly 3 is used to realize the smelting function of the aluminum alloy raw materials. The raw materials are put into the smelting assembly 3 for smelting treatment to obtain high-temperature liquid aluminum alloy. The heating controller 4 is fixedly installed on the smelting furnace shell 1, and the two ends of the wire 10 are electrically connected to the heating controller 4 and the smelting assembly 3 respectively. The heating controller 4 is used to control the temperature adjustment mechanism in the smelting assembly 3 to realize the function of high-temperature smelting.

[0049] The vacuum pump 12 is mounted on the smelting furnace shell 1, and the air pipe of the vacuum pump 12 penetrates into the shell of the smelting assembly 3. The vacuum pump 12 can control the air pressure in the smelting assembly 3 to meet the air pressure requirements of the raw materials during the entire smelting process.

[0050] The monitoring assembly 14 is mounted on the smelting furnace shell 1, and the detection head of the monitoring assembly 14 penetrates into the shell of the smelting assembly 3. The monitoring assembly 14 is used to monitor the temperature and air pressure in the smelting assembly 3 in real time. The heating controller 4, the vacuum pump 12 and the monitoring assembly 14 are electrically connected to the control panel 11 through wires.

[0051] For example, Figure 1 As shown, a first sealed door 2 is provided on the smelting furnace shell 1 .

[0052] For example, Figure 2As shown, a second sealed door 13 is provided on the shell of the smelting assembly 3, and the second sealed door 13 is aligned with the first sealed door 2. When the first sealed door 2 and the second sealed door 13 are opened in sequence, slag removal can be directly performed from the shell of the smelting assembly 3.

[0053] The waste gas is purified by water film purification and float ball purification respectively through the purification component 6, which can not only neutralize the harmful gas in the waste gas, but also filter the dust, improve the purification quality of the waste gas and reduce environmental pollution. The smelted aluminum ash is soaked in clean water and sulfuric acid solution in turn by the acid leaching component 8, so that the aluminum molecules in the aluminum ash can be fully extracted, improve the utilization rate of raw materials and reduce costs. The temperature in the furnace box of the smelting component 3 is monitored in real time by the monitoring component 14. When the temperature in the furnace box reaches 800℃, a signal will be sent, and the unloading component 5 will be started through the control panel 11 to start unloading work, so as to realize the automatic unloading function of the unloading component and improve the delivery accuracy.

[0054] The smelting assembly 3 includes a furnace box 301, a resistance heating plate 302, a first motor 303, a first rotating rod 304, a first stirring blade 305 and a first induced draft fan 307. Figure 3 As shown, the furnace box 301 is installed in the shell 1 of the smelting furnace, the resistance heating plate 302 is located on the inner wall of the bottom of the furnace box 301, and the resistance heating plate 302 is electrically connected to the heating controller 4 through the wire 10. The first motor 303 is fixedly installed on one side wall of the furnace box 301, the output end of the first motor 303 penetrates into the furnace box 301, and is transmission-connected with the first rotating rod 304 through a coupling, the other end of the first rotating rod 304 is rotationally connected to the inner wall of the other side of the furnace box 301 away from the first motor 303 through a bearing seat, and the first stirring blade 305 is fixedly installed on the first rotating rod 304. The first induced draft fan 307 is fixedly installed on the inner wall of the furnace box 301, and the first induced draft fan 307 is connected to one end of the first exhaust pipe 7. A return material feed pipe 308 is connected to the furnace box 301, and the other end of the return material feed pipe 308 penetrates outside the shell 1 of the smelting furnace. An electric door machine 309 is provided at the bottom of the inner wall of one side of the furnace box 301, and a guide plate 306 is fixedly installed on the electric door machine 309, and the other end of the guide plate 306 penetrates the outside of the smelting furnace shell 1. The first motor 303 and the first induced draft fan 307 are electrically connected to the control panel 11 through wires.

[0055] First, the heating controller 4 is started through the control panel 11, and then the resistance heating plate 302 is controlled to work through the heating controller 4, and then the room temperature in the furnace box 301 is heated by the resistance heating plate 302 until the temperature in the furnace box 301 reaches between 725-750°C, and then the raw aluminum and the recycled materials are put into the furnace box 301 in a predetermined proportion (the recycled materials are waste castings, mainly pig iron products), and the first motor 303 is started through the control panel 11, and the first motor 303 drives the first rotating rod 304 and the first stirring blade 305 to start working, and stirs the raw aluminum and the recycled materials that are gradually liquefied at high temperature, accelerates their neutralization, and makes the smelting efficiency higher.

[0056] After the raw aluminum and recycled materials are put into the furnace box 301, the control valve of the first exhaust pipe 7 needs to be opened every 30 minutes, and the first exhaust fan 307 is started by the control panel 11 to discharge the exhaust gas generated in the furnace box 301 into the purification component 6 through the first exhaust pipe 7, because if harmful gases such as carbon monoxide and sulfur dioxide generated in the exhaust gas accumulate in large quantities, it will not only directly reduce the smelting quality of the raw aluminum in the furnace box 301, but also cause certain safety hazards. While exhausting, the vacuum pump 12 is turned on through the control panel 11 to inject air into the furnace box 301 to keep the air pressure in the furnace box 301 balanced.

[0057] The feed assembly 5 includes a second housing 501, a sealing cover 502, a first feed pipe 504, a flow counter 505, a second feed pipe 506 and a first electric butterfly valve 507. Figure 4 As shown, the second shell 501 is fixedly mounted on the top of the smelting furnace shell 1, and the sealing cover 502 is located on the top of the second shell 501. A storage chamber 503 is provided in the second shell 501, and one end of the first feed pipe 504 is connected to the bottom of the storage chamber 503. The flow counter 505 is mounted on the first feed pipe 504. Both ends of the second feed pipe 506 are connected to the second shell 501 and the furnace box 301 respectively. The first electric butterfly valve 507 is mounted on the second feed pipe 506. The first feed pipe 504 is located directly above the second feed pipe 506. The flow counter 505, the first feed pipe 504 and the first electric butterfly valve 507 are electrically connected to the control panel 11 through wires.

[0058] When the raw aluminum and recycled materials in the furnace box 301 are sufficient, the temperature in the furnace will be stably maintained between 725-750°C. When the raw aluminum and recycled materials in the furnace box 301 are insufficient, the temperature in the furnace will rise. When the temperature reaches above 800°C, the monitoring component 14 will detect it and send a signal to the control panel 11, and then the control panel 11 will open the control valve of the first discharge pipe 504 and the first electric butterfly valve 507, so that the raw aluminum in the storage chamber 503 can pass through the first discharge pipe 504 and the second discharge pipe 506 in turn, and finally enter the furnace box 301 (the amount of raw aluminum put in shall not exceed the mass of the first put in, usually between 65-80% of the first put in). When the raw aluminum passes through the first discharge pipe 504, it will contact the sensing module of the flow counter 505, so that it can obtain an accurate put-in amount. When the flow counter 505 measures that the amount of aluminum to be put in reaches 65% of the initial amount, the signal sending module inside it will send a signal to the control panel 11, so that it controls the control valve of the first feeding pipe 504 and the first electric butterfly valve 507 to be closed in sequence, and the feeding of raw aluminum is stopped. The automatic feeding of raw aluminum is realized, and the feeding accuracy is improved. Then, the recycled materials are fed into the furnace according to the specified proportion through the recycled materials feeding pipe 308.

[0059] The purification assembly 6 includes a third housing 601, a water film purification mechanism 602, a float purification mechanism 603, a clean air outlet pipe 604 and a clean air connecting pipe 605. For example, Figure 5 As shown, the third shell 601 is located on one side of the smelting furnace shell 1, the water film purification mechanism 602 and the float purification mechanism 603 are both located in the third shell 601, and the water film purification mechanism 602 and the float purification mechanism 603 are connected through the purified gas connecting pipe 605. The other end of the first exhaust pipe 7 is connected to the water film purification mechanism 602. One end of the clean gas outlet pipe 604 is connected to the float purification mechanism 603, and the other end passes through the outside of the third shell 601.

[0060] The water film purification mechanism 602 includes a throat 6021, a water film return material feed pipe 6022, a high-pressure nozzle 6024 and a second induced-air fan 6026. Figure 6As shown, a water film purification chamber 6023 is provided in the third shell 601. The throat 6021 is installed on the third shell 601, one end of the throat 6021 is connected to the first exhaust pipe 7 and the second exhaust pipe 9, and the other end is connected to the water film return material feed pipe 6022. The diameter of the water film return material feed pipe 6022 is smaller than the throat 6021, and the other end of the water film return material feed pipe 6022 is connected to the water film purification chamber 6023. The high-pressure nozzle 6024 is located in the water film purification chamber 6023, and the water supply pipe of the high-pressure nozzle 6024 runs through the outside of the third shell 601. The height of the high-pressure nozzle 6024 is higher than the water film return material feed pipe 6022. A first water outlet 6025 is provided at the bottom of one side wall of the water film purification chamber 6023. The second induced air fan 6026 is fixedly mounted on the inner wall of the water film purification chamber 6023, and the second induced air fan 6026 is connected to the purified air connecting pipe 605. The high pressure nozzle 6024 and the second induced air fan 6026 are electrically connected to the control panel 11 through wires.

[0061] The float purification mechanism 603 includes a first float plate 6032, a second float plate 6033 and two groups of shower heads 6034. Figure 7 As shown, a float purification chamber 6031 is provided in the third housing 601, and the other end of the purified air connecting pipe 605 is connected to the float purification chamber 6031. The first float plate 6032 and the second float plate 6033 are both located in the float purification chamber 6031, the density of the second float plate 6033 is greater than that of the first float plate 6032, and the height of the second float plate 6033 is higher than that of the first float plate 6032, and the height of the first float plate 6032 is higher than that of the purified air connecting pipe 605. The two groups of shower heads 6034 are respectively located directly above the first float plate 6032 and the second float plate 6033, and the water supply pipes of the two groups of shower heads 6034 pass through the outside of the third housing 601. A second water outlet 6035 is provided at the bottom of the side wall of the float purification chamber 6031. The shower head 6034 is electrically connected to the control panel 11 through an electric wire.

[0062] The waste gas will first enter the water film purification chamber 6023 through the first waste gas pipe 7 and the second waste gas pipe 9, and dilute the calcium-based desulfurizer into a desulfurizer solution at a certain ratio, and then inject the solution into the high-pressure nozzle 6024 through the inlet of the high-pressure nozzle 6024, and then spray it out from the high-pressure nozzle 6024, so that it can be fully neutralized with the waste gas in the chamber, decompose harmful gases such as sulfur dioxide in the waste gas, and obtain solid calcium sulfite and calcium sulfate, which are then discharged together with the waste solution at the bottom of the chamber through the first water outlet 6025. The second induced fan 6026 is then used to suck the remaining gas into the floating ball purification chamber 6031 through the purified gas connecting pipe 605.

[0063] Since the interface of the purified gas connecting pipe 605 is lower than the first float plate 6032 and the second float plate 6033, the exhaust gas will pass through the first float plate 6032 and the second float plate 6033 from bottom to top. While in contact with the two sets of float plates, the floats on the float plates will fully contact with the dust in the exhaust gas and adsorb it. The harmful substances in the exhaust gas are reduced to a minimum and finally discharged through the clean gas outlet pipe 604. Then turn on the two sets of showers 6034 to flush the dust on the first float plate 6032 and the second float plate 6033 below, and finally discharge it through the second water outlet 6035. Through the sequential purification of the two methods of water film dust removal and float dust removal, not only can the harmful gases in the exhaust gas be neutralized, but also the dust can be filtered, which improves the purification quality of the exhaust gas and reduces environmental pollution.

[0064] The acid leaching assembly 8 includes a fourth housing 801, a second motor 803, a second rotating rod 804, a second stirring blade 805, an acid leaching discharge pipe 806 and a grid-type electromagnetic valve 807. Figure 8 As shown, the fourth shell 801 is located on one side of the smelting furnace shell 1, and the other end of the second exhaust pipe 9 is connected to the fourth shell 801. An aluminum slag feed port 809 is provided at the top of the fourth shell 801. The second motor 803 is fixedly mounted on the outer wall of one side of the fourth shell 801, and the output end of the second motor 803 penetrates into the fourth shell 801 and is transmission-connected to the second rotating rod 804 through a coupling. The other end of the second rotating rod 804 is rotationally connected to the inner wall of the fourth shell 801 away from the second motor 803 through a bearing seat. The second stirring blade 805 is fixedly mounted on the second rotating rod 804. A liquid inlet 802 is provided on the outer wall of the fourth shell 801. One end of the acid leaching discharge pipe 806 is connected to the bottom of the fourth shell 801, and a second electric butterfly valve 808 is fixedly mounted on the other end. The grid-type solenoid valve 807 is fixedly mounted in the acid leaching discharge pipe 806. The second motor 803 , the grid-type solenoid valve 807 , and the second electric butterfly valve 808 are electrically connected to the control panel 11 through wires, respectively.

[0065] After the smelting work is completed, wait for the furnace box 301 to be completely cooled, open the first sealed box door 2 and the second sealed box door 13 in turn, take out the aluminum ash in the furnace box 301 and put it into the fourth shell 801 through the aluminum slag feed port 809. Then inject clean water into the fourth shell 801 through the liquid inlet 802, and soak the aluminum ash for 4-6 hours. During the soaking process, the aluminum nitride in the aluminum ash will hydrolyze and generate stable aluminum hydroxide, which will significantly reduce its quality. At the same time, the aluminum carbide in the aluminum ash will be completely hydrolyzed. During the soaking process, the aluminum oxide hydration weight gain in the aluminum ash is very small, and only a trace amount of metallic aluminum is hydrolyzed. However, due to the small amount of hydration weight gain of aluminum oxide and the generation of aluminum hydroxide, the quality of the aluminum ash increases by 2-5%.

[0066] Then, a sulfuric acid solution with a concentration of 15% is injected into the fourth shell 801 through the liquid inlet 802 (if the sulfuric acid concentration is too high, the water content in the solution will decrease, and the saturation of aluminum sulfate will hinder the reaction and reduce the leaching rate of aluminum), and soak for 5-7 hours to allow the aluminum in the aluminum ash to be fully leached. Then open the second electric butterfly valve 808, and then discharge the leaching solution containing aluminum molecules through the grid-type solenoid valve 807. After no liquid is discharged, open the grid-type solenoid valve 807 again to discharge the remaining residue. The waste gas generated during the reaction will enter the water film purification chamber 6023 through the second waste gas pipe 9.

[0067] The monitoring component 14 includes an external thermometer 1401 and an external barometer 1402. Fig. 9 As shown, the external thermometer 1401 and the external barometer 1402 are both fixedly mounted on one side outer wall of the smelting furnace shell 1, and the probes of the external thermometer 1401 and the external barometer 1402 are both inserted into the furnace box 301. The external thermometer 1401 and the external barometer 1402 are electrically connected to the control panel 11 through wires.

[0068] The temperature in the furnace box 301 can be observed in real time through the external thermometer 1401. When the temperature reaches 800°C, a signal will be sent to the control panel 11 through the signal sending module in the external thermometer 1401, so as to achieve the purpose of automatic temperature monitoring. In the process of exhaust gas emission and raw aluminum smelting, oxygen in the air needs to be burned, which will reduce the air pressure in the furnace box 301. When the air pressure in the furnace box 301 is 20% lower than the normal air pressure, a signal will be sent to the control panel 11 through the signal sending module in the external barometer 1402, and then the vacuum pump 12 will be started through the control panel 11 to inject air into the furnace box 301.

[0069] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein; and these modifications or substitutions do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A device for preparing aluminum alloy composite materials, characterized in that: The preparation device comprises a smelting furnace shell (1), a smelting component (3), a heating controller (4), a material discharge component (5), a purification component (6), a first exhaust pipe (7), a second exhaust pipe (9), an acid leaching component (8) and a conductor (10); The smelting assembly (3) comprises a furnace box (301), a resistance heating plate (302), and a first induced draft fan (307); the furnace box (301) is installed in the shell (1) of the smelting furnace, the resistance heating plate (302) is located on the inner wall of the bottom of the furnace box (301), and the resistance heating plate (302) is electrically connected to the heating controller (4) through a wire (10), and the heating controller (4) is installed on the inner wall of the shell (1) of the smelting furnace; a first stirring mechanism is installed in the furnace box (301); the first induced draft fan (307) is fixedly installed on the inner wall of the furnace box (301), and the first induced draft fan (307) is connected to one end of the first exhaust pipe (7); a return material feed pipe (308) is connected to the furnace box (301), and the other end of the return material feed pipe (308) passes through the outside of the smelting furnace shell (1); The material discharge assembly (5) is installed on the top of the smelting furnace shell (1), and the material discharge assembly (5) is connected to the furnace box (301) through a group of material discharge pipes; the purification assembly (6) is located on one side of the smelting furnace shell (1), and the other end of the first exhaust pipe (7) is connected to the purification assembly (6); The acid leaching assembly (8) comprises a fourth shell (801), an acid leaching discharge pipe (806) and a grid-type solenoid valve (807); the fourth shell (801) is located on one side of the smelting furnace shell (1), and the two ends of the second exhaust pipe (9) are respectively connected to the fourth shell (801) and the purification assembly (6); an aluminum slag feed port (809) is provided on the top of the fourth shell (801); a second stirring mechanism is installed in the fourth shell (801), and a liquid inlet (802) is provided on the outer wall of the fourth shell (801); one end of the acid leaching discharge pipe (806) is connected to the bottom of the fourth shell (801), and a second electric butterfly valve (808) is fixedly installed on the other end; the grid-type solenoid valve (807) is fixedly installed in the acid leaching discharge pipe (806); The purification component (6) comprises a third shell (601), a water film purification mechanism (602), a floating ball purification mechanism (603), a clean air outlet pipe (604) and a clean air connecting pipe (605); The third shell (601) is located on one side of the smelting furnace shell (1), the water film purification mechanism (602) and the float purification mechanism (603) are both located in the third shell (601), and the water film purification mechanism (602) and the float purification mechanism (603) are connected through a purified gas connecting pipe (605); the other end of the first exhaust pipe (7) is connected to the water film purification mechanism (602); one end of the clean gas outlet pipe (604) is connected to the float purification mechanism (603), and the other end passes through the outside of the third shell (601); The water film purification mechanism (602) comprises a throat (6021), a water film return material feed pipe (6022), a high-pressure nozzle (6024) and a second induced draft fan (6026); The third shell (601) is provided with a water film purification chamber (6023); the throat (6021) is installed on the third shell (601), one end of the throat (6021) is connected to the first exhaust pipe (7) and the second exhaust pipe (9), and the other end is connected to the water film return material feed pipe (6022); the diameter of the water film return material feed pipe (6022) is smaller than the throat (6021), and the other end of the water film return material feed pipe (6022) is connected to the water film purification chamber (6023); the high-pressure nozzle ( 6024) is located in the water film purification chamber (6023), and the water supply pipe of the high-pressure nozzle (6024) penetrates to the outside of the third shell (601); the height of the high-pressure nozzle (6024) is higher than the water film return material feeding pipe (6022); a first water outlet (6025) is provided at the bottom of one side wall of the water film purification chamber (6023); the second induced draft fan (6026) is fixedly installed on the inner wall of the water film purification chamber (6023), and the second induced draft fan (6026) is connected to the purified air connecting pipe (605); The float purification mechanism (603) comprises a first float plate (6032), a second float plate (6033) and two groups of shower heads (6034); The third shell (601) is provided with a float purification chamber (6031), and the other end of the purified gas connecting pipe (605) is connected to the float purification chamber (6031); the first float plate (6032) and the second float plate (6033) are both located in the float purification chamber (6031), the density of the second float plate (6033) is greater than that of the first float plate (6032), and the height of the second float plate (6033) is greater than that of the first float plate (6032). On the first float plate (6032), the height of the first float plate (6032) is higher than the purified air connecting pipe (605); the two groups of shower heads (6034) are respectively located directly above the first float plate (6032) and the second float plate (6033), and the water supply pipes of the two groups of shower heads (6034) penetrate to the outside of the third shell (601); a second water outlet (6035) is provided at the bottom of the side wall of the float purification chamber (6031); Floats for absorbing dust are provided on both the first float plate (6032) and the second float plate (6033).

2. The device for preparing an aluminum alloy composite material according to claim 1, characterized in that: An electric door machine (309) is provided at the bottom of the inner wall of one side of the furnace box (301), a guide plate (306) is fixedly mounted on the electric door machine (309), and the other end of the guide plate (306) penetrates to the outside of the smelting furnace shell (1); The first stirring mechanism comprises a first motor (303), a first rotating rod (304) and a first stirring blade (305); the first motor (303) is fixedly mounted on a side wall of the furnace box (301); an output end of the first motor (303) passes through the furnace box (301) and is transmission-connected to the first rotating rod (304) via a coupling; the other end of the first rotating rod (304) is rotationally connected to the inner wall of the furnace box (301) on the other side away from the first motor (303) via a bearing seat; and the first stirring blade (305) is fixedly mounted on the first rotating rod (304).

3. The device for preparing an aluminum alloy composite material according to claim 1, characterized in that: The material discharge assembly (5) comprises a second housing (501), a sealing cover (502), a first material discharge pipe (504), a flow counter (505), a second material discharge pipe (506) and a first electric butterfly valve (507); The second shell (501) is fixedly mounted on the top of the smelting furnace shell (1), and the sealing cover (502) is located on the top of the second shell (501); a storage chamber (503) is provided in the second shell (501), and one end of the first discharge pipe (504) is connected to the bottom of the storage chamber (503); the flow counter (505) is mounted on the first discharge pipe (504); both ends of the second discharge pipe (506) are respectively connected to the second shell (501) and the furnace box 301; the first electric butterfly valve (507) is mounted on the second discharge pipe (506); the first discharge pipe (504) is located directly above the second discharge pipe (506).

4. The device for preparing an aluminum alloy composite material according to claim 1, characterized in that: The second stirring mechanism comprises a second motor (803), a second rotating rod (804) and a second stirring blade (805); The second motor (803) is fixedly mounted on an outer wall of one side of the fourth shell (801); the output end of the second motor (803) passes through the fourth shell (801) and is transmission-connected to the second rotating rod (804) via a coupling; the other end of the second rotating rod (804) is rotationally connected to the inner wall of a side of the fourth shell (801) away from the second motor (803) via a bearing seat; the second stirring blade (805) is fixedly mounted on the second rotating rod (804).

5. The device for preparing an aluminum alloy composite material according to claim 1, characterized in that: The preparation device further comprises a monitoring component (14), wherein the monitoring component (14) comprises an external thermometer (1401) and an external barometer (1402); The external thermometer (1401) and the external barometer (1402) are both fixedly mounted on an outer wall of one side of the smelting furnace shell (1), and the probes of the external thermometer (1401) and the external barometer (1402) are both inserted into the furnace box (301).

6. The device for preparing an aluminum alloy composite material according to claim 1, characterized in that: The smelting furnace shell (1) is provided with a first sealed door (2); the furnace box (301) is provided with a second sealed door (13), and the first sealed door (2) is located directly outside the second sealed door (13); A vacuum pump (12) is installed on the outer wall of the smelting furnace shell (1), and an air pipe of the vacuum pump (12) penetrates into the furnace box (301).

7. The device for preparing aluminum alloy composite material according to claim 6, characterized in that: The preparation device also includes a control panel (11), and the control panel (11) is electrically connected to the smelting component (3), the heating controller (4), the feeding component (5), the purification component (6), the acid leaching component (8), the vacuum pump (12) and the monitoring component (14) through electric wires.

Images