Aluminum alloy smelting equipment

Abstract

The utility model relates to the technical field of smelting furnaces, in particular to aluminum alloy smelting equipment which not only can utilize waste heat in waste gas, improve the energy utilization rate and save energy, but also can filter smelted aluminum liquid to prevent impurities from influencing the purity of the aluminum liquid. The aluminum alloy smelting equipment comprises a smelting furnace; the smelting furnace further comprises a stirring mechanism, a filtering mechanism, a heat exchange mechanism and an exhaust mechanism, the stirring mechanism is installed on the smelting furnace and used for stirring aluminum materials, the filtering mechanism is installed on the stirring mechanism and used for filtering molten aluminum, and the heat exchange mechanism is installed on the smelting furnace and used for utilizing waste heat in waste gas. The exhaust mechanism is installed on the heat exchange mechanism and filters waste gas.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of smelting furnace, in particular to a kind of aluminium alloy smelting equipment. BACKGROUND

[0002] Aluminium alloy is alloy with aluminium as base and adding certain amount of other alloying elements, and it is one of light metal materials, aluminium alloy has the characteristics of light weight, high strength, good thermal conductivity, corrosion resistance, good plasticity, and therefore has wide application in multiple fields.

[0003] The existing aluminium alloy smelting equipment, for example, the utility model patent with the application number 202420532812.X discloses a heat accumulating type smelting furnace, its main structure includes smelting furnace main body, the door plate that closes smelting bin is rotatably installed on smelting furnace main body, the bottom of smelting furnace main body has bottom groove, connecting piece is fixedly installed at the end of receiving plate, connecting piece is L-shaped structure, mobile rod is rotatably connected at the end away from receiving plate, mobile rod is horizontally arranged below one side of smelting furnace main body, lifting mechanism is fixedly installed at the outside of smelting furnace main body corresponding to mobile rod;When using, the second motor starts, drives gear to rotate synchronously, and the gear groove matched with driving gear slides along the inside of support frame, and then mobile rod drives receiving plate to slide out of bottom groove through connecting piece, and then telescopic cylinder contracts, drives support frame to move upwards, and then receiving plate gradually slides into the inside of smelting bin, while waste material slides into smelting bin, the second motor reverses again, drives mobile rod to move, so that receiving plate continuously moves towards the outside of smelting bin, until receiving plate completely moves out of smelting bin, telescopic cylinder extends to drive support frame to descend, and the first motor rotates to drive receiving plate to restore horizontal state, at this time, receiving plate is again position corresponding with bottom groove.

[0004] However, the existing aluminium alloy smelting equipment still contains a large amount of waste heat in exhaust gas, which is very wasteful to directly discharge into the atmosphere, and most of the existing aluminium alloy smelting equipment is difficult to filter aluminium liquid, which affects the purity of aluminium liquid. UTILITY MODEL CONTENTS

[0005] To solve the above technical problems, the utility model provides an aluminium alloy smelting equipment which can utilize the waste heat in exhaust gas, improve energy utilization rate, save energy, and filter the smelted aluminium liquid to avoid impurities affecting the purity of aluminium liquid.

[0006] The utility model discloses a kind of aluminium alloy smelting equipment, including smelting furnace;It further includes stirring mechanism, filtering mechanism, heat exchange mechanism and exhaust mechanism, stirring mechanism is installed on smelting furnace and aluminium material is stirred, filtering mechanism is installed on stirring mechanism and aluminium liquid is filtered, heat exchange mechanism is installed on smelting furnace and waste heat in waste gas is utilized, exhaust mechanism is installed on heat exchange mechanism and waste gas is filtered;Staff delivers aluminium material into smelting furnace, smelting furnace smelts aluminium material, stirring mechanism is stirred to aluminium material during smelting process, accelerates aluminium material melting, aluminium liquid is filtered and discharged into filtering mechanism, waste gas and heat exchange mechanism are heat exchanged, heat exchange mechanism delivers hot water to smelting furnace feed inlet, and preheats subsequent aluminium material, exhaust mechanism filters waste gas, while heat exchange mechanism delivers water to exhaust mechanism and washes filter plate.

[0007] Preferably, the smelting furnace includes a furnace body, a feeding hopper, a sealing door, a heat exchange disc and a heat exchange box, the bottom end of the furnace body is connected with the ground, the inside of the furnace body is provided with a furnace cavity, the feeding hopper is installed on the furnace body and communicates with the inside of the furnace cavity of the furnace body, the sealing door is rotatably installed on the feeding hopper, the heat exchange disc is installed at the bottom end of the feeding hopper, and the bottom end of the heat exchange box communicates with the inside of the top end of the furnace body; the staff opens the sealing door, adds aluminium material into the furnace cavity of the furnace body through the feeding hopper, the heat exchange disc preheats the aluminium material, the furnace smelts the aluminium material after entering the furnace cavity, and the waste gas generated in the heating process enters the heat exchange box and is heat exchanged with the heat exchange mechanism.

[0008] Preferably, the stirring mechanism includes a motor, a speed reducer, a transmission shaft, a first rotating shaft, two groups of first chain wheels, a first chain and a plurality of stirring rods, the motor is installed on the furnace body, the speed reducer is installed on the furnace body and connected with the motor, the transmission shaft is installed on the speed reducer, the first rotating shaft is rotatably installed in the furnace cavity of the furnace body, the two groups of first chain wheels are respectively installed on the transmission shaft and the first rotating shaft, the first chain is transmissionally installed on the two groups of first chain wheels, and the plurality of stirring rods are all installed on the first rotating shaft; the motor is started, the motor drives the transmission shaft to rotate through the speed reducer, the transmission shaft drives the first chain wheel connected therewith to rotate, the first chain wheel drives the other group of first chain wheel and the first rotating shaft to rotate through the first chain, and the first rotating shaft drives the plurality of stirring rods to rotate to stir the aluminium material, thereby accelerating the melting of the aluminium material.

[0009] Preferably, the filtering mechanism comprises a discharging box, a discharging channel, a second rotating shaft, three sets of connecting frames, a filter screen, two sets of second sprockets and a second chain, the discharging box is installed on the furnace body and communicates with the inside of the furnace cavity of the furnace body, the discharging channel is installed on the discharging box and communicates with the inside of the discharging box, the second rotating shaft is rotatably installed in the discharging box, the three sets of connecting frames are all installed on the second rotating shaft, the filter screen is installed on the three sets of connecting frames, the two sets of second sprockets are respectively installed on the second rotating shaft and the first rotating shaft, and the second chain is drivingly installed between the two sets of second sprockets; the first rotating shaft drives the second sprocket connected thereto to rotate, the second sprocket drives the other set of second sprocket and the second rotating shaft to rotate through the second chain, the second rotating shaft drives the three sets of connecting frames and the filter screen to rotate, the molten aluminum in the furnace cavity of the furnace body enters the discharging box through the filter screen, and the connecting frames push the molten aluminum to enter the discharging channel and be discharged.

[0010] Preferably, the heat exchange mechanism comprises a water pump, a water inlet pipe, a first valve, a heat exchange pipe, a water delivery pipe, a water return pipe and a check valve, the water pump is installed on the heat exchange box, the water inlet pipe is installed on the water pump, the first valve is installed on the water inlet pipe, the heat exchange pipe is installed in the heat exchange box and communicates with the water pump, the water delivery pipe is installed on the heat exchange disc and communicates with the inside of the heat exchange pipe, the water return pipe is installed on the heat exchange disc and communicates with the inside of the water inlet pipe, and the check valve is installed on the water return pipe; the water inlet pipe is communicated with a water source, the first valve is opened, and the water pump is started, water is pumped into the heat exchange pipe through the water inlet pipe, the clean water in the heat exchange pipe exchanges heat with the waste gas in the heat exchange box, absorbs the heat in the waste gas, and the hot water enters the heat exchange disc through the water delivery pipe, preheats the aluminum material through the heat exchange disc, and the hot water in the heat exchange disc is returned to the water pump through the water return pipe to be heated repeatedly, and the check valve is arranged to prevent the clean water from directly entering the water return pipe.

[0011] Preferably, the exhaust mechanism comprises a filter plate, a communication pipe, a second valve, a spray head and a chimney, the filter plate is installed in the heat exchange box, the communication pipe communicates with the inside of the heat exchange pipe, the second valve is installed on the communication pipe, the spray head is installed in the heat exchange box and located above the filter plate, and the bottom end of the chimney communicates with the inside of the top end of the heat exchange box; the waste gas is filtered through the filter plate after heat exchange with the heat exchange pipe, the filtered waste gas is discharged through the chimney, the second valve is opened after long-time filtering, the clean water is conveyed into the spray head through the communication pipe, the spray head sprays the clean water to clean the filter plate and the heat exchange pipe, and the filtering efficiency of the filter plate and the heat exchange efficiency of the heat exchange pipe are ensured.

[0012] Compared with the prior art, the beneficial effects of the utility model are as follows: the staff sends the aluminum material into the smelting furnace, the smelting furnace smelts the aluminum material, the stirring mechanism stirs the aluminum material during the smelting process, accelerates the melting of the aluminum material, the molten aluminum is filtered and then enters the filtering mechanism and is discharged, the waste gas exchanges heat with the heat exchange mechanism, the heat exchange mechanism conveys the hot water to the feeding port of the smelting furnace and preheats the subsequent aluminum material, the exhaust mechanism filters the waste gas, and the heat exchange mechanism conveys the water to the filter plate of the exhaust mechanism to flush the filter plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is an axonometric structural diagram of the present utility model;

[0014] Figure 2 This is an axonometric structural diagram of the utility model melting furnace;

[0015] Figure 3 It is a partially enlarged sectional axonometric structural diagram of the stirring mechanism and filtering mechanism of the utility model;

[0016] Figure 4 This is a partially enlarged sectional axonometric structural diagram of the filter mechanism of the utility model;

[0017] Figure 5 It is a partially enlarged cross-sectional axonometric structural diagram of the heat exchange mechanism and exhaust mechanism of the utility model.

[0018] Markings in the accompanying drawings: 01, smelting furnace; 11, furnace body; 12, upper hopper; 13, sealing door; 14, heat exchange plate; 15, heat exchange box; 02, stirring mechanism; 21, motor; 22, reducer; 23, transmission shaft; 24, first rotating shaft; 25, first sprocket; 26, first chain; 27, stirring rod; 03, filtering mechanism; 31, discharge box; 32, discharge channel; 33, second rotating shaft; 34, connecting frame; 35, filter screen; 36, second sprocket; 37, second chain; 04, heat exchange mechanism; 41, water pump; 42, water inlet pipe; 43, first valve; 44, heat exchange pipe; 45, water supply pipe; 46, return pipe; 47, check valve; 05, exhaust mechanism; 51, filter plate; 52, connecting pipe; 53, second valve; 54, nozzle; 55, chimney. DETAILED DESCRIPTION

[0019] To facilitate understanding of the present invention, a more comprehensive description of the present invention will be provided below with reference to the accompanying drawings. The present invention can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and comprehensive understanding of the present invention.

[0020] Example 1

[0021] like Figures 1 to 5 As shown, the utility model is an aluminum alloy smelting equipment, including a smelting furnace 01; also including a stirring mechanism 02, a filtering mechanism 03, a heat exchange mechanism 04 and an exhaust mechanism 05. The stirring mechanism 02 is installed on the smelting furnace 01 and stirs the aluminum material, the filtering mechanism 03 is installed on the stirring mechanism 02 and filters the aluminum liquid, the heat exchange mechanism 04 is installed on the smelting furnace 01 and utilizes the waste heat in the exhaust gas, and the exhaust mechanism 05 is installed on the heat exchange mechanism 04 and filters the exhaust gas.

[0022] The smelting furnace 01 comprises a furnace body 11, a feeding hopper 12, a sealing door 13, a heat exchange disc 14 and a heat exchange box 15. The bottom end of the furnace body 11 is connected with the ground. The furnace body 11 is internally provided with a furnace cavity. The feeding hopper 12 is installed on the furnace body 11 and communicates with the inside of the furnace cavity of the furnace body 11. The sealing door 13 is rotatably installed on the feeding hopper 12. The heat exchange disc 14 is installed at the bottom end of the feeding hopper 12. The bottom end of the heat exchange box 15 communicates with the inside of the top end of the furnace body 11.

[0023] In the embodiment, the stirring mechanism 02 comprises a motor 21, a speed reducer 22, a transmission shaft 23, a first rotating shaft 24, two groups of first chain wheels 25, a first chain 26 and a plurality of stirring rods 27. The motor 21 is installed on the furnace body 11. The speed reducer 22 is installed on the furnace body 11. The transmission shaft 23 is installed on the speed reducer 22. The first rotating shaft 24 is rotatably installed in the furnace cavity of the furnace body 11. The two groups of first chain wheels 25 are respectively installed on the transmission shaft 23 and the first rotating shaft 24. The first chain 26 is transmissionally installed on the two groups of first chain wheels 25. The plurality of stirring rods 27 are all installed on the first rotating shaft 24.

[0024] In the embodiment, the filtering mechanism 03 comprises a discharging box 31, a discharging channel 32, a second rotating shaft 33, three groups of connecting frames 34, a filter screen 35, two groups of second chain wheels 36 and a second chain 37. The discharging box 31 is installed on the furnace body 11 and communicates with the inside of the furnace cavity of the furnace body 11. The discharging channel 32 is installed on the discharging box 31 and communicates with the inside of the discharging box 31. The second rotating shaft 33 is rotatably installed in the discharging box 31. The three groups of connecting frames 34 are all installed on the second rotating shaft 33. The filter screen 35 is installed on the three groups of connecting frames 34. The two groups of second chain wheels 36 are respectively installed on the second rotating shaft 33 and the first rotating shaft 24. The second chain 37 is transmissionally installed between the two groups of second chain wheels 36.

[0025] In the embodiment, the heat exchange mechanism 04 comprises a water pump 41, a water inlet pipe 42, a first valve 43, a heat exchange pipe 44, a water delivery pipe 45, a water return pipe 46 and a check valve 47. The water pump 41 is installed on the heat exchange box 15. The water inlet pipe 42 is installed on the water pump 41. The first valve 43 is installed on the water inlet pipe 42. The heat exchange pipe 44 is installed in the heat exchange box 15 and communicates with the water pump 41. The water delivery pipe 45 is installed on the heat exchange disc 14 and communicates with the inside of the heat exchange pipe 44. The water return pipe 46 is installed on the heat exchange disc 14 and communicates with the inside of the water inlet pipe 42. The check valve 47 is installed on the water return pipe 46.

[0026] In its work, the water inlet pipe 42 is opened with the water source to open the first valve 43, the water pump 41 is started, the water pump 41 is pumped through the water inlet pipe 42, the clean water is entered into the heat exchange pipe 44, the clean water in the heat exchange pipe 44 is heat exchanged with the waste gas in the heat exchange box 15, absorbs the heat in the waste gas, the hot water is entered into the heat exchange disc 14 through the water delivery pipe 45, the aluminum material is preheated through the heat exchange disc 14, the hot water in the heat exchange disc 14 is returned to the water pump 41 again through the backwater pipe 46 and is repeatedly heated, the backwater pipe 46 is avoided to directly enter the clean water through the setting check valve 47.

[0027] Example 2

[0028] As Figures 1 to 5 The utility model discloses an aluminum alloy smelting equipment on the basis of example 1, exhaust mechanism 05 includes filter plate 51, communication pipe 52, second valve 53, shower head 54 and chimney 55, filter plate 51 installs in heat exchange box 15, communication pipe 52 with heat exchange pipe 44 inside communication, second valve 53 installs on communication pipe 52, shower head 54 installs in heat exchange box 15 and is located above filter plate 51, the bottom of chimney 55 with heat exchange box 15 top inside communication.

[0029] During operation, first, the staff opens the sealed door 13 and adds the aluminum material into the furnace cavity of the furnace body 11 through the upper hopper 12. The heat exchange plate 14 preheats the aluminum material. After entering the furnace cavity of the furnace body 11, the furnace body 11 melts it and starts the motor 21. The motor 21 drives the transmission shaft 23 to rotate through the reducer 22. The transmission shaft 23 drives the first sprocket 25 connected thereto to rotate. The first sprocket 25 drives another group of first sprockets 25 and the first rotating shaft 24 to rotate through the first chain 26. The first rotating shaft 24 drives multiple groups of stirring rods 27 to rotate to stir the aluminum material and accelerate the melting of the aluminum material. The first rotating shaft 24 drives the second sprocket 36 connected thereto to rotate. The second sprocket 36 drives another group of second sprockets 36 and the second rotating shaft 33 to rotate through the second chain 37. The second rotating shaft 33 drives three groups of connecting frames 34 and the filter screen 35 to rotate. The aluminum liquid in the furnace cavity of the furnace body 11 enters the discharge box 31 through the filter screen 35. The connecting frame 34 Push the aluminum liquid into the discharge channel 32 for discharge, connect the water inlet pipe 42 to the water source, open the first valve 43, start the water pump 41, and pump water through the water inlet pipe 42. Clean water enters the heat exchange pipe 44. The clean water in the heat exchange pipe 44 exchanges heat with the exhaust gas in the heat exchange box 15, absorbing the heat in the exhaust gas. The hot water enters the heat exchange disk 14 through the water pipe 45, and the aluminum material is preheated by the heat exchange disk 14. The hot water in the heat exchange disk 14 is then returned to the heat exchange disk 14 through the return pipe 46. The waste gas flows into the water pump 41 for repeated heating. A check valve 47 is provided to prevent the clean water from directly entering the return pipe 46. The waste gas exchanges heat with the heat exchange pipe 44 and is filtered through the filter plate 51. The filtered waste gas is discharged through the chimney 55. After a long period of filtration, the second valve 53 is opened, and the clean water is transported to the nozzle 54 through the connecting pipe 52. The nozzle 54 sprays the clean water to clean the filter plate 51 and the heat exchange pipe 44, thereby ensuring the filtration efficiency of the filter plate 51 and the heat exchange efficiency of the heat exchange pipe 44.

[0030] The electric motor 21, reducer 22 and water pump 41 of the utility model are purchased on the market, and technicians in this industry only need to install and operate them according to the accompanying instruction manuals without the need for creative work by technicians in this field.

[0031] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. An aluminum alloy smelting device, comprising a smelting furnace (01); characterized in that, The invention also includes a stirring mechanism (02), a filtering mechanism (03), a heat exchange mechanism (04) and an exhaust mechanism (05), wherein the stirring mechanism (02) is mounted on the smelting furnace (01) and stirs the aluminum material, the filtering mechanism (03) is mounted on the stirring mechanism (02) and filters the aluminum liquid, the heat exchange mechanism (04) is mounted on the smelting furnace (01) and utilizes the waste heat in the exhaust gas, and the exhaust mechanism (05) is mounted on the heat exchange mechanism (04) and filters the exhaust gas; The smelting furnace (01) includes a furnace body (11), an upper hopper (12), a sealing door (13), a heat exchange plate (14) and a heat exchange box (15). The bottom end of the furnace body (11) is connected to the ground, a furnace cavity is provided inside the furnace body (11), the upper hopper (12) is installed on the furnace body (11) and is communicated with the interior of the furnace cavity of the furnace body (11), the sealing door (13) is rotatably installed on the upper hopper (12), the heat exchange plate (14) is installed on the bottom end of the upper hopper (12), and the bottom end of the heat exchange box (15) is communicated with the top end of the furnace body (11).

2. The aluminum alloy smelting equipment according to claim 1, characterized in that: The stirring mechanism (02) comprises a motor (21), a reducer (22), a transmission shaft (23), a first rotating shaft (24), two sets of first sprockets (25), a first chain (26) and a plurality of stirring rods (27). The motor (21) is mounted on the furnace body (11), the reducer (22) is mounted on the furnace body (11) and connected to the motor (21), the transmission shaft (23) is mounted on the reducer (22), the first rotating shaft (24) is rotatably mounted in the furnace cavity of the furnace body (11), the two sets of first sprockets (25) are respectively mounted on the transmission shaft (23) and the first rotating shaft (24), the first chain (26) is transmission-mounted on the two sets of first sprockets (25), and the plurality of stirring rods (27) are all mounted on the first rotating shaft (24).

3. The aluminum alloy smelting equipment according to claim 2, characterized in that: The filtering mechanism (03) includes a discharge box (31), a discharge channel (32), a second rotating shaft (33), three groups of connecting frames (34), a filter screen (35), two groups of second sprockets (36) and a second chain (37). The discharge box (31) is installed on the furnace body (11) and communicates with the interior of the furnace chamber of the furnace body (11). The discharge channel (32) is installed on the discharge box (31) and communicates with the interior of the discharge box (31). The second rotating shaft (33) is rotatably installed in the discharge box (31). The three groups of connecting frames (34) are all installed on the second rotating shaft (33). The filter screen (35) is installed on the three groups of connecting frames (34). The two groups of second sprockets (36) are respectively installed on the second rotating shaft (33) and the first rotating shaft (24). The second chain (37) is transmission-installed between the two groups of second sprockets (36).

4. The aluminum alloy smelting equipment according to claim 1, characterized in that: The heat exchange mechanism (04) includes a water pump (41), a water inlet pipe (42), a first valve (43), a heat exchange pipe (44), a water delivery pipe (45), a return pipe (46) and a check valve (47). The water pump (41) is installed on the heat exchange box (15), the water inlet pipe (42) is installed on the water pump (41), the first valve (43) is installed on the water inlet pipe (42), the heat exchange pipe (44) is installed in the heat exchange box (15) and is connected to the water pump (41), the water delivery pipe (45) is installed on the heat exchange disk (14) and is connected to the inside of the heat exchange pipe (44), the return pipe (46) is installed on the heat exchange disk (14) and is connected to the inside of the water inlet pipe (42), and the check valve (47) is installed on the return pipe (46).

5. The aluminum alloy smelting equipment according to claim 4, characterized in that: The exhaust mechanism (05) includes a filter plate (51), a connecting pipe (52), a second valve (53), a nozzle (54) and a chimney (55). The filter plate (51) is installed in the heat exchange box (15). The connecting pipe (52) is connected to the interior of the heat exchange pipe (44). The second valve (53) is installed on the connecting pipe (52). The nozzle (54) is installed in the heat exchange box (15) and is located above the filter plate (51). The bottom end of the chimney (55) is connected to the top end of the heat exchange box (15).

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