CN111889660B - Magnesium alloy rapid melting device and quantitative control discharging system thereof - Google Patents
Magnesium alloy rapid melting device and quantitative control discharging system thereof Download PDFInfo
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- CN111889660B CN111889660B CN202010773163.9A CN202010773163A CN111889660B CN 111889660 B CN111889660 B CN 111889660B CN 202010773163 A CN202010773163 A CN 202010773163A CN 111889660 B CN111889660 B CN 111889660B
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- 238000002844 melting Methods 0.000 title claims abstract description 123
- 230000008018 melting Effects 0.000 title claims abstract description 123
- 229910000861 Mg alloy Inorganic materials 0.000 title claims abstract description 68
- 238000007599 discharging Methods 0.000 title claims abstract description 57
- 230000007246 mechanism Effects 0.000 claims abstract description 107
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims description 112
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 98
- 229910052786 argon Inorganic materials 0.000 claims description 56
- 239000007789 gas Substances 0.000 claims description 55
- 239000000155 melt Substances 0.000 claims description 54
- 239000002994 raw material Substances 0.000 claims description 49
- 229910052757 nitrogen Inorganic materials 0.000 claims description 41
- 230000001105 regulatory effect Effects 0.000 claims description 26
- 239000007788 liquid Substances 0.000 claims description 25
- 238000010438 heat treatment Methods 0.000 claims description 19
- 229910001873 dinitrogen Inorganic materials 0.000 claims description 16
- 238000009413 insulation Methods 0.000 claims description 12
- 238000003756 stirring Methods 0.000 claims description 10
- 238000004519 manufacturing process Methods 0.000 abstract description 21
- 239000000956 alloy Substances 0.000 abstract description 6
- 239000002893 slag Substances 0.000 abstract description 6
- 238000005266 casting Methods 0.000 abstract description 5
- 230000001590 oxidative effect Effects 0.000 abstract description 5
- 238000003723 Smelting Methods 0.000 abstract description 3
- 235000014347 soups Nutrition 0.000 abstract description 3
- 229910045601 alloy Inorganic materials 0.000 abstract description 2
- 238000005265 energy consumption Methods 0.000 abstract description 2
- 230000009471 action Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 238000004512 die casting Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 230000003647 oxidation Effects 0.000 description 4
- 238000007254 oxidation reaction Methods 0.000 description 4
- 230000001681 protective effect Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000006698 induction Effects 0.000 description 3
- 238000002485 combustion reaction Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000004907 flux Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 238000007528 sand casting Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D39/00—Equipment for supplying molten metal in rations
- B22D39/06—Equipment for supplying molten metal in rations having means for controlling the amount of molten metal by controlling the pressure above the molten metal
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J4/00—Feed or outlet devices; Feed or outlet control devices
- B01J4/001—Feed or outlet devices as such, e.g. feeding tubes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J4/00—Feed or outlet devices; Feed or outlet control devices
- B01J4/008—Feed or outlet control devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J6/00—Heat treatments such as Calcining; Fusing ; Pyrolysis
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D21/00—Casting non-ferrous metals or metallic compounds so far as their metallurgical properties are of importance for the casting procedure; Selection of compositions therefor
- B22D21/02—Casting exceedingly oxidisable non-ferrous metals, e.g. in inert atmosphere
- B22D21/04—Casting aluminium or magnesium
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/02—Making non-ferrous alloys by melting
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C23/00—Alloys based on magnesium
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Vertical, Hearth, Or Arc Furnaces (AREA)
Abstract
The invention relates to the technical field of magnesium alloy and other alloy casting production equipment, and discloses a magnesium alloy rapid melting device and a quantitative control discharging system thereof, wherein the magnesium alloy rapid melting device comprises a pouring nozzle mechanism, an air pressure discharging mechanism, a lifting feeding mechanism, an ingot pushing feeding mechanism, a jacking feeding mechanism, a hydraulic cylinder and a melting device; the magnesium alloy rapid melting device realizes pollution-free production, reduces energy consumption and manpower, and does not generate oxidizing slag; the device works in a closed system, and the quantitative control discharging system is adopted, so that automatic production can be realized, the quality and efficiency of smelting and casting are guaranteed while the safety performance is improved, the quantity of discharged soup can be accurately controlled, and the production arrangement is flexible.
Description
Technical Field
The invention relates to the technical field of magnesium alloy and other alloy casting production equipment, in particular to a magnesium alloy rapid melting device and a quantitative control discharging system thereof.
Background
At present, magnesium alloy has wide application prospect as the lightest metal structure material at present, and especially under the current world industrial development trend of energy conservation and emission reduction, the magnesium alloy material becomes the preferred material of a plurality of industries due to the characteristics of light specific gravity, recoverability, abundant resources and the like, such as the industries of automobiles, high-speed rails, aviation, building materials, electronics and the like. Therefore, magnesium alloy materials have once been called "green engineering materials with the greatest development prospects in the 21 st century".
For a long time, the production and processing processes of the magnesium alloy have the problems of high energy consumption, serious pollution, high danger coefficient, low automation level and the like, and the application and popularization of the magnesium alloy are severely restricted. The magnesium alloy is active in chemical property, the molten magnesium alloy is more flammable and explosive, a flux or protective gas (mixed gas of SF6, SO2 or HFC134a, N2 and the like) is required for protection, a large amount of protective gas or flux is required in the smelting and casting processes of the magnesium alloy, and a large amount of waste gas is generated to pollute the environment, SO that smelting link pollution is a main problem.
Magnesium alloy materials need to be remelted into liquid in a finish machining link, such as die casting or sand casting production, and then poured into a mold for molding to manufacture products, in the prior art, 500-3000 kg of magnesium alloy melting furnaces with different capacities are arranged according to the size of a die casting machine to melt the magnesium alloy into liquid, the problems of oxidation combustion and the like also exist in the remelting process, pollution protective gas such as SF6, SO2 or HFC134a and the like is required to be used, manual maintenance is required, oxidation slag generated in the melting and heat preservation process needs to be manually cleaned, the working environment is severe and high in danger, and meanwhile, the impurity content of the materials is increased, SO that the quality of casting products is influenced; these factors result in a lot of work being done around the melting device in the die casting plant, which consumes high labor cost and seriously affects the production efficiency and quality of the die casting production enterprises.
Disclosure of Invention
The invention provides a magnesium alloy rapid melting device and a quantitative control discharging system thereof, which are used for solving the problems of labor consumption, environmental pollution, high working environment risk and the like in the production and processing process of magnesium alloy in the prior art.
In order to solve the technical problems, the invention provides a magnesium alloy rapid melting device which comprises a pouring nozzle mechanism, an air pressure discharging mechanism, a lifting feeding mechanism, an ingot pushing feeding mechanism, a jacking feeding mechanism, a hydraulic cylinder and a melting device, wherein the feeding end of the pouring nozzle mechanism is connected with the discharging end of the air pressure discharging mechanism, and the feeding end of the air pressure discharging mechanism is connected with the discharging end of the melting device; one end of the ingot pushing and feeding mechanism is connected with the melting device so as to push the raw materials to the melting device; the cylinder body of the hydraulic cylinder is connected to the melting device, and the piston rod of the hydraulic cylinder is connected to the ingot pushing and feeding mechanism so as to drive the ingot pushing and feeding mechanism to push raw materials; one end of the jacking feeding mechanism is rotatably connected with the melting device so as to jack the raw materials from the initial position of the ingot pushing feeding mechanism to the loading position of the ingot pushing feeding mechanism; the lifting feeding mechanism is opposite to the jacking feeding mechanism so as to lift a plurality of raw materials to the initial position of the ingot pushing feeding mechanism.
Preferably, the ingot pushing and feeding mechanism comprises a guide slide rail, an ingot pushing plate and a top post, one end of the guide slide rail is connected to the feeding end of the melting device, the ingot pushing plate is slidably connected to the guide slide rail, a piston rod of the hydraulic cylinder is connected to the ingot pushing plate, one end of the top post is connected to the ingot pushing plate, the top post and the melting device are arranged in parallel, and the top post and the melting feeding port are arranged in a right-to-right mode.
Preferably, the device further comprises a first heating device, and the first heating device is wrapped outside the melting device to melt the raw materials.
Preferably, the jacking feeding mechanism comprises an air cylinder and a supporting plate, one end of the supporting plate is rotatably connected to the melting device, a piston rod of the air cylinder is rotatably connected to the other end of the supporting plate, and a cylinder body of the air cylinder is rotatably connected to the fixed frame.
Preferably, the jacking and feeding mechanism further comprises a conveying plate, one end of the conveying plate is connected to the supporting plate, and the other end of the conveying plate extends to the discharging end of the lifting and feeding mechanism so as to guide the raw materials from the discharging end of the lifting and feeding mechanism to the supporting plate.
Preferably, a heat insulation flow reducing plate is arranged at the joint of the melting device and the air pressure discharging mechanism, a plurality of through holes are formed in the heat insulation flow reducing plate, and the through holes are uniformly arranged, so that the heat insulation flow reducing plate limits unmelted raw materials in the melting device.
According to the preferable scheme, the air pressure discharging mechanism comprises a first air duct, a second air duct and a melt cache region, the air outlet end of the first air duct extends into the bottom of an inner cavity of the melt cache region, the air outlet end of the second air duct extends into the top of the inner cavity of the melt cache region, the liquid inlet end of the melt cache region is connected to the liquid outlet end of the melting device, and the liquid outlet end of the melt cache region is connected with the pouring nozzle mechanism.
Preferably, the liquid inlet end of the melt buffer area and the melting device are arranged at the same height in the vertical direction, and the height of the melt buffer area in the vertical direction is greater than that of the guide pipe in the vertical direction.
Preferably, the outside of the melt buffer area is wrapped with a second heating device.
As a preferred scheme, the pneumatic discharging mechanism further comprises a stirring blade and a motor, a shell of the motor is connected to the melt cache region, a motor shaft of the motor extends to an inner cavity of the melt cache region, the motor shaft of the motor is connected to the stirring blade, and the stirring blade is located at the bottom end of the inner cavity of the melt cache region.
The invention also provides a quantitative control discharging system of the magnesium alloy rapid melting device, which comprises a controller, a first pressure sensor, a second pressure sensor, a servo motor and a pressure regulating valve body; the first pressure sensor is used for acquiring the pressure value of the exhaust end of the argon source; the second pressure sensor is used for acquiring the dynamic pressure value of the exhaust end of the nitrogen source; the controller is used for feeding back a signal to the servo motor according to the received pressure value and the received dynamic pressure value so as to control the opening degree of the pressure regulating valve body; and when the nitrogen pressure in the melt buffer zone reaches a preset threshold value, the liquid raw material in the melt buffer zone is pressed out of the melt buffer zone, and the liquid raw material is discharged by the pouring nozzle mechanism.
As a preferred scheme, the system also comprises an argon gas bottle, a nitrogen gas bottle, an argon gas pipe and a nitrogen gas pipe; one end of the argon pipe is connected with the argon bottle, and the other end of the argon pipe is connected with the gas inlet end of the first gas guide pipe; one end of the nitrogen pipe is connected to the nitrogen bottle, and the other end of the nitrogen pipe is connected to the air inlet end of the second air guide pipe.
Preferably, the first pressure sensor is arranged between the argon gas tank and the first gas guide pipe, and the first pressure sensor is connected to the argon gas pipe; the second pressure sensor is arranged between the nitrogen tank and the first air guide pipe and is connected to the nitrogen pipe; the pressure regulating valve body is connected to the nitrogen gas pipe, and the pressure regulating valve body is located between the argon gas bottle and the second pressure sensor.
As a preferred scheme, the controller is electrically connected to the first pressure sensor, the controller is electrically connected to the second pressure sensor, the servo motor is electrically connected to the controller, and a motor shaft of the servo motor is connected to the control pressure regulating valve body.
Preferably, the system further comprises a tee pipe and an exhaust solenoid valve, wherein the tee pipe is connected to the nitrogen gas pipe and located between the pressure sensor and the second gas guide pipe, and the exhaust solenoid valve is connected to the tee pipe; the exhaust electromagnetic valve is electrically connected with the controller, and the controller feeds back a signal to the exhaust electromagnetic valve according to the dynamic pressure value.
Preferably, the system further comprises a first switch electromagnetic valve, a second switch electromagnetic valve, a third switch electromagnetic valve, a manual switch and an air inlet electromagnetic valve, wherein the first switch electromagnetic valve and the manual switch are connected to the argon pipe, and the second switch electromagnetic valve body, the third switch electromagnetic valve body and the air inlet electromagnetic valve are connected to the nitrogen pipe; the first switching solenoid valve is located between the first pressure sensor and the argon tank; the second switch electromagnetic valve is positioned between the pressure regulating valve body and the nitrogen tank; the third switch electromagnetic valve is positioned between the pressure regulating valve body and the second pressure sensor; the manual switch is positioned between the first pressure sensor and the first switch electromagnetic valve; the air inlet electromagnetic valve is positioned between the second pressure sensor and the three-way pipe fitting.
Preferably, the system further comprises an argon gas flow meter mounted on the argon gas pipe, and the argon gas flow meter is located between the first switch solenoid valve body and the manual switch.
The invention provides a magnesium alloy rapid melting device and a quantitative control discharging system thereof. The magnesium alloy quick melting device in this application is worked in the closing body system, can realize automated production, and can not produce the oxidizing slag, realize pollution-free in the production process, save artifical, energy saving, high target of security, and the quantitative control discharge system that the device adopted can the accurate control go out the hot water volume, realizes the flexibility of production arrangement.
Drawings
FIG. 1 is a schematic structural diagram of a magnesium alloy rapid melting apparatus according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a magnesium alloy rapid melting apparatus according to an embodiment of the present invention;
FIG. 3 is a schematic structural diagram of a magnesium alloy rapid melting apparatus according to an embodiment of the present invention;
FIG. 4 is a schematic view of a quantitative control discharge system of a magnesium alloy rapid melting device according to an embodiment of the present invention.
In the figure, the position of the upper end of the main shaft,
1. a nozzle mechanism;
2. an air pressure discharging mechanism; 21. a first air duct; 22. a second air duct; 23. a melt buffer zone; 24. a guide tube;
3. a lifting and feeding mechanism;
4. an ingot pushing and feeding mechanism; 41. a guide slide rail; 42. pushing the ingot plate; 43. a top pillar;
5. jacking and feeding mechanisms; 51. a cylinder; 52. a support plate; 53. a conveying plate;
6. a hydraulic cylinder;
7. a melting device; 71. a first heating device;
8. a fixed mount;
91. a first pressure sensor; 92. a second pressure sensor; 93. a servo motor; 94. a pressure regulating valve body; 95. an argon bottle; 951. an argon pipe; 952. an argon gas flow meter; 96. a nitrogen gas cylinder; 961. a nitrogen gas pipe; 97. a tee pipe fitting; 98. an exhaust solenoid valve; 991. a first on-off solenoid valve; 992. a second on-off solenoid valve; 993. a third on-off solenoid valve; 994. a manual switch; 995. an air inlet electromagnetic valve.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
In the description of the present application, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present application and simplifying the description, but do not indicate or imply that the referred device or element must have a particular orientation, be constructed in a particular orientation, and be operated, and thus should not be construed as limiting the present application.
The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless otherwise specified.
In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.
The following is a description of preferred embodiments of the present invention with reference to fig. 1-4.
As shown in fig. 1-3, the embodiment of the present invention preferably implements a magnesium alloy rapid melting apparatus, which includes a nozzle mechanism 1, an air pressure discharging mechanism 2, a lifting feeding mechanism 3, an ingot pushing feeding mechanism 4, a jacking feeding mechanism 5, a hydraulic cylinder and a melting apparatus 7, wherein a feeding end of the nozzle mechanism 1 is connected to a discharging end of the air pressure discharging mechanism 2, and a feeding end of the air pressure discharging mechanism 2 is connected to a discharging end of the melting apparatus 7; one end of the ingot pushing and feeding mechanism 4 is connected to the melting device 7 so as to push the raw material to the melting device 7; the cylinder body of the hydraulic cylinder is connected to the melting device 7, and the piston rod of the hydraulic cylinder is connected to the ingot pushing and feeding mechanism 4 so as to drive the ingot pushing and feeding mechanism 4 to push raw materials; one end of the jacking feeding mechanism 5 is rotatably connected with the melting device 7 so as to jack the raw materials from the initial position of the ingot pushing feeding mechanism 4 to the loading position of the ingot pushing feeding mechanism 4; the lifting feeding mechanism 3 is arranged opposite to the jacking feeding mechanism 5 so as to lift a plurality of raw materials to the initial position of the ingot pushing feeding mechanism 4. The magnesium alloy quick melting device in the application works in a closed system, can realize automatic production, can not produce oxidizing slag, can realize the aims of no pollution, labor saving, energy saving and high safety in the production process, can accurately control the quantity of discharged soup by a quantitative control discharging system adopted by the device, and realizes the flexibility of production arrangement.
It should be noted that, the shape structure of the inner cavity of the melting device 7 of the magnesium alloy rapid melting device in the application is the same as the shape of the raw material of the magnesium alloy, the shape structure can ensure the air tightness in the melting device 7, ensure that the magnesium alloy melting work is carried out in a closed system, no other protective gas is needed, the pollution-free production process is realized, meanwhile, the oxidation slag generated by oxidizing the magnesium alloy material is avoided, the manual cleaning is not needed, the labor and the energy are saved, the problem of combustion and explosion caused by the oxidation of the magnesium liquid is avoided, and the safety is greatly improved. One end of the ingot pushing and feeding mechanism 4 is connected with the melting device 7, and the other end is connected with the upper end of the fixing frame 8, so that raw materials can be pushed into the melting device 7 under the action of a piston rod of the hydraulic cylinder.
Specifically, the ingot pushing and feeding mechanism 4 comprises a guide slide rail 41, an ingot pushing plate 42 and a top pillar 43, one end of the guide slide rail 41 is connected to the feeding end of the melting device 7, the ingot pushing plate 42 is slidably connected to the guide slide rail 41, a piston rod of a hydraulic cylinder is connected to the ingot pushing plate 42, one end of the top pillar 43 is connected to the ingot pushing plate 42, the top pillar 43 is arranged in parallel with the melting device 7, and the top pillar 43 is arranged opposite to the feeding port of the melting device 7.
It should be noted that the loading position of the ingot pushing and feeding mechanism 4 is located between the free end of the top pillar 43 and the feeding port of the melting device 7, the loading position is opposite to and parallel to the top pillar 43 and the melting device 7, and the ingot pushing plate 42 slides along the guide slide rail 41 under the action of the piston rod of the hydraulic cylinder to push the raw material to the feeding port, so that the raw material enters the melting device 7; the pusher plate 42 may have slides mounted thereon that are coupled to the slide rails to effect sliding movement of the pusher plate 42 on the slide rails.
It should be noted that the overall structure of the magnesium alloy rapid melting device is inclined to facilitate the melted raw material to flow into the melt buffer zone 23.
Specifically, the magnesium alloy rapid melting device further comprises a first heating device 71, and the first heating device 71 is wrapped outside the melting device 7.
It should be noted that the first heating device 71 preferably employs an induction heating coil, and the induction heating coil is uniformly disposed on the outer wall of the melting device 7, and the induction heating coil can sense whether there is raw material in the melting device, so as to realize real-time or intermittent heating; meanwhile, the raw materials entering the melting device 7 can be uniformly heated and quickly melted, the heating mode of the first heating device 71 has good safety performance, and the energy is saved by 30 percent compared with the original melting mode of the magnesium alloy melting device, so that the energy-saving and environment-friendly performance of the magnesium alloy quick melting device is ensured.
Specifically, the jacking feeding mechanism 5 comprises an air cylinder 51 and a supporting plate 52, one end of the supporting plate 52 is rotatably connected to the melting device 7, a piston rod of the air cylinder 51 is rotatably connected to the other end of the supporting plate 52, and a cylinder body of the air cylinder 51 is rotatably connected to the fixed frame 8.
It should be noted that the bottom end of the cylinder body of the air cylinder 51 is connected to the fixed frame 8.
Specifically, the jacking feeding mechanism 5 further comprises a conveying plate 53, one end of the conveying plate 53 is connected to the supporting plate 52, and the other end of the conveying plate 53 extends to the discharging end of the lifting feeding mechanism 3 so as to guide the raw materials from the discharging end of the lifting feeding mechanism 3 to the supporting plate 52.
It should be noted that the discharge end of the elevation feeding mechanism 3 is higher than the pallet 52, i.e. the conveying plate 53 is disposed obliquely, so that the conveying plate 53 can guide the raw material from the discharge end of the elevation feeding mechanism 3 to the pallet 52.
Specifically, a heat insulation flow reducing plate is arranged at the joint of the melting device 7 and the air pressure discharging mechanism 2, a plurality of through holes are formed in the heat insulation flow reducing plate, and the through holes are uniformly distributed, so that the heat insulation flow reducing plate limits unmelted raw materials in the melting device 7.
It should be noted that the plurality of through holes are uniformly arranged on the heat insulation flow reducing plate, so that the unmelted raw material in the melting device 7 cannot flow into the pouring nozzle mechanism 1 through the heat insulation flow reducing plate of the pneumatic discharging mechanism 2, the unmelted raw material will be retained in the melting device 7, and the flow of the melted raw material from the melting device 7 into the melt buffer area 23 can be slowed down through the heat insulation flow reducing plate.
Specifically, the pneumatic discharge mechanism 2 comprises a first air duct 21, a second air duct 22, a melt cache region 23 and a guide duct 24, wherein the air outlet end of the first air duct 21 extends into the bottom of the inner cavity of the melt cache region 23, the air outlet end of the second air duct 22 extends into the top of the inner cavity of the melt cache region 23, the liquid inlet end of the melt cache region 23 is connected to the liquid outlet end of the melting device 7, and one end of the guide duct 24 is connected to the liquid outlet end of the melt cache region 23.
Specifically, the height of the guide pipe 24 and the height of the melting device 7 in the vertical direction are the same, and the height of the melt buffer zone 23 in the vertical direction is greater than the height of the guide pipe 24 in the vertical direction.
It should be noted here that the height of the guiding tube 24 and the height of the melting device 7 in the vertical direction are the same, so that the influence of the pressure generated by the liquid level height of the liquid raw material in the guiding tube 24 and the melting device 7 on the discharging accuracy of the magnesium alloy rapid melting device of the present invention is avoided, and meanwhile, the height of the melt buffer zone 23 in the vertical direction is greater than the height of the guiding tube 24 in the vertical direction, so that the gas outlet end of the second gas guiding tube 22 is always above the liquid level of the liquid raw material, and the working stability of the magnesium alloy rapid melting device of the present invention is ensured.
Specifically, the outside of the melt buffer area 23 is wrapped with a second heating device.
It should be noted that the second heating device preferably employs a heating wire, and the heating wire is uniformly wound on the outer wall of the melt buffer area 23, so as to maintain the temperature inside the melt buffer area 23, and prevent the melted raw material from crystallizing, even if the melted raw material stored in the melt buffer area 23 is kept in a melted state and can perform secondary melting on the incompletely melted raw material.
Specifically, the pneumatic discharging mechanism 2 further comprises a stirring blade and a motor, a housing of the motor is connected to the melt cache region 23, a motor shaft of the motor extends to an inner cavity of the melt cache region 23, the motor shaft of the motor is connected to the stirring blade, and the stirring blade is located at the bottom end of the inner cavity of the melt cache region 23.
The raw material melted in the melt buffer area 23 is in a flowing state by the stirring blade, and can flow into the guide pipe 24 from the melt buffer area 23 by the motor, and further flow into the nozzle mechanism 1 to be discharged.
As shown in fig. 4, the embodiment of the present invention preferably implements a quantitative control discharging system based on a magnesium alloy rapid melting device, wherein the quantitative control discharging system of the magnesium alloy rapid melting device comprises a controller, a first pressure sensor 91, a second pressure sensor 92, a servo motor 93 and a pressure regulating valve body 94; the first pressure sensor 91 is used for acquiring the pressure value of the exhaust end of the argon source; the second pressure sensor 92 is used for acquiring the dynamic pressure value of the exhaust end of the nitrogen source; a controller for feeding back a signal to the servo motor 93 according to the received pressure value and the dynamic pressure value to control the opening degree of the pressure regulating valve body 94; when the nitrogen pressure in the melt buffer 23 reaches a predetermined threshold value, the liquid raw material in the melt buffer 23 is pressed out of the melt buffer 23, and the liquid raw material is discharged from the nozzle mechanism 1.
Specifically, the quantitative control discharging system further comprises an argon gas bottle 95, a nitrogen gas bottle 96, an argon gas pipe 951 and a nitrogen gas pipe 961; one end of the argon gas pipe 951 is connected with the argon gas bottle 95, and the other end of the argon gas pipe 951 is connected with the gas inlet end of the first gas guide pipe 21, so that the argon gas bottle 951 can provide nitrogen gas with a stable amount for the melt buffer zone 23; one end of the nitrogen pipe 961 is connected to the nitrogen cylinder 96, and the other end of the nitrogen pipe 961 is connected to the air inlet end of the second air duct 22.
It should be noted that one end of the nitrogen tube 961 is connected to the nitrogen bottle 96, and the other end of the nitrogen tube 961 is connected to the air inlet end of the second air duct 22, so that the nitrogen bottle 96 supplies nitrogen to the inner cavity of the melt buffer zone 23, and the quantitative control discharging system of the magnesium alloy rapid melting device of the present invention controls the nitrogen amount in the nitrogen tube 961 to regulate and control the nitrogen pressure value in the melt buffer zone 23, so as to accurately press the liquid raw material out of the melt buffer zone 23 and discharge the liquid raw material out of the magnesium alloy rapid melting device of the present invention through the pouring nozzle mechanism, thereby ensuring the accuracy of the device of the present invention.
Specifically, the first pressure sensor 91 is disposed between the argon gas tank and the first gas guiding tube 21, and the first pressure sensor 91 is connected to the argon gas tube 951; the second pressure sensor 92 is arranged between the nitrogen tank and the second gas-guide tube 22, and the second pressure sensor 92 is connected to the nitrogen tube 961; the pressure regulating valve body 94 is connected to the nitrogen gas pipe 961, and the pressure regulating valve body 94 is located between the argon gas cylinder 95 and the second pressure sensor 92.
It should be noted that the first pressure sensor 91 is provided between the argon tank and the first gas guiding tube 21, and the first pressure sensor 91 is connected to the argon gas tube 951, so that the first pressure sensor 91 can acquire a pressure value in the argon gas tube 951. Second pressure sensor 92 sets up between nitrogen gas jar and second air duct 22, and second pressure sensor 92 is connected with nitrogen gas pipe 961, and pressure regulating valve body 94 sets up between argon gas pipe 951 and second pressure sensor 92, makes second pressure sensor 92 can in time acquire the dynamic pressure value in the argon gas pipe 951.
Specifically, the controller is electrically connected to the first pressure sensor 91, the controller is electrically connected to the second pressure sensor 92, the servo motor 93 is electrically connected to the controller, and a motor shaft of the servo motor 93 is connected to the control pressure regulating valve body 94.
It should be noted that the controller is electrically connected to the first pressure sensor 91, so that the controller can receive the pressure value transmitted by the first pressure sensor 91; the controller is electrically connected to the second pressure sensor 92, and the controller can receive the dynamic pressure value transmitted by the second pressure sensor 92; the servo motor 93 is electrically connected to the controller and can receive a signal fed back by the controller; the motor shaft of the servo motor 93 is connected to the control pressure regulating valve body 94, and can control the opening degree of the pressure regulating valve body 94, thereby controlling the amount of nitrogen in the nitrogen pipe 961.
Specifically, the quantitative control discharging system further comprises a three-way pipe 97 and an exhaust electromagnetic valve 98, the three-way pipe 97 is connected to the nitrogen pipe 961, the three-way pipe 97 is located between the pressure sensor and the second air duct 22, and the exhaust electromagnetic valve 98 is connected to the three-way pipe 97; the exhaust solenoid valve 98 is electrically connected to the controller, and the controller feeds back a signal to the exhaust solenoid valve 98 according to the dynamic pressure value.
It should be noted that the exhaust solenoid valve 98 connected to the tee pipe 97 adjusts the pressure in the nitrogen pipe 961 according to the pressure value of the pressure sensor, and the controller electrically connected to the exhaust solenoid valve 98 can transmit the dynamic pressure value feedback signal to the exhaust solenoid valve 98, so as to control the opening or closing of the exhaust solenoid valve 98, thereby ensuring that the nitrogen pressure value in the nitrogen pipe 961 is in a safe usable range, and improving the stability and safety performance of the device.
Specifically, the quantitative control discharging system further comprises a first switch electromagnetic valve 991, a second switch electromagnetic valve 992, a third switch electromagnetic valve 993, a manual switch 994 and an air inlet electromagnetic valve, wherein the first switch electromagnetic valve 991 and the manual switch 994 are connected to an argon pipe 951, and the second switch electromagnetic valve 992, the third switch electromagnetic valve 993 and the air inlet electromagnetic valve are connected to a nitrogen pipe 961; the first on-off solenoid valve 991 is located between the first pressure sensor 91 and the argon tank; the second switch electromagnetic valve 992 is positioned between the pressure regulating valve body 94 and the nitrogen tank; the third on/off solenoid valve 993 is located between the pressure regulating valve body 94 and the second pressure sensor 92; the manual switch 994 is located between the first pressure sensor 91 and the first on-off solenoid valve 991; the inlet solenoid valve is located between the second pressure sensor 92 and the tee 97.
It should be noted that the first switching solenoid valve 991, the second switching solenoid valve 992, the third switching solenoid valve 993 and the air intake solenoid valve 995 are all electrically connected to the controller, so as to open or close the first switching solenoid valve 991, the second switching solenoid valve 992, the third switching solenoid valve 993 and the air intake solenoid valve 995.
Specifically, quantitative control discharge system still includes argon gas flowmeter 952, and argon gas flowmeter 952 installs on argon gas pipe 951, and argon gas flowmeter 952 is located between the first switch solenoid valve 991 body and the hand switch 994, and argon gas flowmeter 952's setting can reflect the flow value of argon gas in the argon gas pipe in real time, and then guarantees that argon gas bottle 96 can provide the argon gas of steady volume to fuse-element buffer zone 23.
It should be noted here that the operation process of the magnesium alloy rapid melting device is as follows: the raw materials are conveyed to the jacking feeding mechanism 5 by the lifting feeding mechanism 3, fall into the supporting plate 52 under the conveying of the conveying plate 53, the supporting plate 52 is conveyed to the ingot pushing plate 42 of the ingot pushing feeding mechanism 4 under the action of the air cylinder 51, the raw materials are pushed into the melting device 7 along the guide sliding rail 41 under the action of the top column 43, the melted raw materials flow into the nozzle mechanism 1 from the melt buffer area 23 under the action of the air pressure discharging mechanism 2, and soup is accurately discharged under the control of the quantitative control discharging system of the magnesium alloy quick melting device.
In summary, the magnesium alloy rapid melting device and the quantitative control discharging system thereof provided by the invention comprise a pouring nozzle mechanism, an air pressure discharging mechanism, a lifting feeding mechanism, an ingot pushing feeding mechanism, a jacking feeding mechanism, a hydraulic cylinder and a melting device, wherein the feeding end of the pouring nozzle mechanism is connected with the discharging end of the air pressure discharging mechanism, and the feeding end of the air pressure discharging mechanism is connected with the discharging end of the melting device. The magnesium alloy quick melting device in this application is worked in the closing body system, can realize automated production, and can not produce the oxidizing slag, realize pollution-free in the production process, save artifical, energy saving, high target of security, and the quantitative control discharge system that the device adopted can the accurate control go out the hot water volume, realizes the flexibility of production arrangement.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and substitutions can be made without departing from the technical principle of the present invention, and these modifications and substitutions should also be regarded as the protection scope of the present invention.
Claims (16)
1. A magnesium alloy rapid melting device is characterized by comprising: the device comprises a pouring nozzle mechanism, an air pressure discharging mechanism, a lifting feeding mechanism, an ingot pushing feeding mechanism, a jacking feeding mechanism, a hydraulic cylinder and a melting device, wherein the feeding end of the pouring nozzle mechanism is connected with the discharging end of the air pressure discharging mechanism, and the feeding end of the air pressure discharging mechanism is connected with the discharging end of the melting device;
one end of the ingot pushing and feeding mechanism is connected with the melting device so as to push the raw materials to the melting device;
the cylinder body of the hydraulic cylinder is connected to the melting device, and the piston rod of the hydraulic cylinder is connected to the ingot pushing and feeding mechanism so as to drive the ingot pushing and feeding mechanism to push raw materials;
one end of the jacking feeding mechanism is rotatably connected with the melting device so as to jack the raw materials from the initial position of the ingot pushing feeding mechanism to the loading position of the ingot pushing feeding mechanism;
the lifting feeding mechanism is arranged opposite to the jacking feeding mechanism so as to lift a plurality of raw materials to an initial position of the ingot pushing feeding mechanism;
the shape structure of the inner cavity of the melting device of the magnesium alloy rapid melting device is the same as that of a magnesium alloy raw material, and the shape structure can ensure the air tightness in the melting device and ensure that the magnesium alloy melting work is carried out in a closed system;
the pneumatic discharging mechanism comprises a first air duct, a second air duct, a melt cache area and a guide duct, wherein the air outlet end of the first air duct extends into the bottom of the inner cavity of the melt cache area, the air outlet end of the second air duct extends into the top of the inner cavity of the melt cache area, the liquid inlet end of the melt cache area is connected to the liquid outlet end of the melting device, and one end of the guide duct is connected to the liquid outlet end of the melt cache area.
2. The magnesium alloy rapid melting apparatus of claim 1, wherein the ingot pushing and feeding mechanism comprises: the device comprises a guide slide rail, a push plate and a top post, wherein one end of the guide slide rail is connected to the feeding end of the melting device, the push plate is connected to the guide slide rail in a sliding mode, a piston rod of a hydraulic cylinder is connected to the push plate, one end of the top post is connected to the push plate, the top post is arranged in parallel with the melting device, and the top post is arranged opposite to the feeding port of the melting device.
3. The magnesium alloy rapid melting apparatus of claim 1, further comprising a first heating means which is wrapped outside the melting apparatus to melt the raw material.
4. The magnesium alloy rapid melting device according to claim 1, wherein the lift-up feeding mechanism comprises a cylinder and a supporting plate, one end of the supporting plate is rotatably connected to the melting device, a piston rod of the cylinder is rotatably connected to the other end of the supporting plate, and a cylinder body of the cylinder is rotatably connected to the fixed frame.
5. The magnesium alloy rapid melting apparatus of claim 4, wherein the lift feeder further comprises a conveyor plate, one end of the conveyor plate being connected to the pallet, the other end of the conveyor plate extending to the discharge end of the lift feeder to guide the raw material from the discharge end of the lift feeder to the pallet.
6. The magnesium alloy rapid melting device according to claim 1, wherein a heat insulation flow reducing plate is provided at a connection point of the melting device and the pneumatic discharging mechanism, and a plurality of through holes are provided on the heat insulation flow reducing plate and are uniformly arranged, so that the heat insulation flow reducing plate limits unmelted raw materials in the melting device.
7. The magnesium alloy rapid melting apparatus as set forth in claim 1, wherein the guide pipe and the melting apparatus are disposed at the same height in a vertical direction, and a height of the melt buffer zone in the vertical direction is greater than a height of the guide pipe in the vertical direction.
8. The magnesium alloy rapid melting apparatus according to claim 1, wherein the melt buffer zone is externally wrapped with a second heating device.
9. The magnesium alloy rapid melting device according to claim 1, wherein the pneumatic discharging mechanism further comprises a stirring blade and a motor, a housing of the motor is connected to the melt buffer, a motor shaft of the motor extends to an inner cavity of the melt buffer, and is connected to the stirring blade, and the stirring blade is located at the bottom end of the inner cavity of the melt buffer.
10. A quantitative control discharging system based on a magnesium alloy rapid melting device as claimed in any one of claims 1 to 9, characterized in that the system comprises: the pressure regulating valve comprises a controller, a first pressure sensor, a second pressure sensor, a servo motor and a pressure regulating valve body;
the first pressure sensor is used for acquiring the pressure value of the exhaust end of the argon source;
the second pressure sensor is used for acquiring the dynamic pressure value of the exhaust end of the nitrogen source;
the controller is used for feeding back a signal to the servo motor according to the received pressure value and the received dynamic pressure value so as to control the opening degree of the pressure regulating valve body;
and when the nitrogen pressure in the melt buffer zone reaches a preset threshold value, the liquid raw material in the melt buffer zone is pressed out of the melt buffer zone, and the liquid raw material is discharged by the pouring nozzle mechanism.
11. The quantitative control discharge system of a magnesium alloy rapid melting device according to claim 10, wherein said system further comprises: an argon bottle, a nitrogen bottle, an argon pipe and a nitrogen pipe;
one end of the argon pipe is connected with the argon bottle, and the other end of the argon pipe is connected with the gas inlet end of the first gas guide pipe;
one end of the nitrogen pipe is connected to the nitrogen bottle, and the other end of the nitrogen pipe is connected to the air inlet end of the second air guide pipe.
12. The quantitative control discharging system of a magnesium alloy rapid melting device according to claim 11, wherein the first pressure sensor is disposed between the argon cylinder and the first gas-guide tube, and the first pressure sensor is connected to the argon tube;
the second pressure sensor is arranged between the nitrogen gas bottle and the second gas guide pipe, and is connected to the nitrogen gas pipe;
the pressure regulating valve body is connected to the nitrogen gas pipe, and the pressure regulating valve body is located between the nitrogen gas cylinder and the second pressure sensor.
13. A quantitative control discharging system of a magnesium alloy fast melting device as claimed in claim 12, wherein said controller is electrically connected to said first pressure sensor, said controller is electrically connected to said second pressure sensor, said servo motor is electrically connected to said controller, and a motor shaft of said servo motor is connected to said control pressure regulating valve body.
14. A quantitative control discharge system for a magnesium alloy rapid melting apparatus as set forth in claim 13, wherein said system further comprises: the tee pipe is connected to the nitrogen pipe and located between the second pressure sensor and the second gas guide pipe, and the exhaust electromagnetic valve is connected to the tee pipe;
the exhaust electromagnetic valve is electrically connected with the controller, and the controller feeds back a signal to the exhaust electromagnetic valve according to the dynamic pressure value.
15. A quantitative control discharge system for a magnesium alloy rapid melting apparatus as set forth in claim 14, wherein said system further comprises: the argon gas pipe is connected with the argon gas pipe through a first switch electromagnetic valve, a second switch electromagnetic valve, a third switch electromagnetic valve, a manual switch and a gas inlet electromagnetic valve;
the first switch electromagnetic valve is positioned between the first pressure sensor and the argon bottle;
the second switch electromagnetic valve is positioned between the pressure regulating valve body and the nitrogen cylinder;
the third switch electromagnetic valve is positioned between the pressure regulating valve body and the second pressure sensor;
the manual switch is positioned between the first pressure sensor and the first switch electromagnetic valve;
the air inlet electromagnetic valve is positioned between the second pressure sensor and the three-way pipe fitting.
16. A quantitative control discharge system for a magnesium alloy rapid melting apparatus as set forth in claim 15, wherein said system further comprises:
and the argon gas flowmeter is arranged on the argon gas pipe and is positioned between the first switch electromagnetic valve and the manual switch.
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