CN111922352A - Efficient preparation device and preparation method of spherical copper alloy powder - Google Patents
Efficient preparation device and preparation method of spherical copper alloy powder Download PDFInfo
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- 239000000843 powder Substances 0.000 title claims abstract description 100
- 229910000881 Cu alloy Inorganic materials 0.000 title claims abstract description 92
- 238000002360 preparation method Methods 0.000 title claims abstract description 54
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 39
- 239000000956 alloy Substances 0.000 claims abstract description 39
- 239000007788 liquid Substances 0.000 claims description 105
- 230000005540 biological transmission Effects 0.000 claims description 42
- 238000012545 processing Methods 0.000 claims description 33
- 230000007246 mechanism Effects 0.000 claims description 28
- 238000005192 partition Methods 0.000 claims description 21
- 238000003860 storage Methods 0.000 claims description 21
- 238000005507 spraying Methods 0.000 claims description 18
- 238000005485 electric heating Methods 0.000 claims description 11
- 230000000149 penetrating effect Effects 0.000 claims description 10
- 238000012216 screening Methods 0.000 claims description 9
- 238000004519 manufacturing process Methods 0.000 claims description 8
- 238000007599 discharging Methods 0.000 claims description 7
- 238000004321 preservation Methods 0.000 claims description 4
- 238000003723 Smelting Methods 0.000 claims description 3
- 230000006698 induction Effects 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 3
- 229910052751 metal Inorganic materials 0.000 claims description 3
- 239000002994 raw material Substances 0.000 claims description 3
- 239000004744 fabric Substances 0.000 claims description 2
- 238000009434 installation Methods 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 8
- 238000001856 aerosol method Methods 0.000 abstract description 7
- 239000007921 spray Substances 0.000 description 9
- 238000000926 separation method Methods 0.000 description 6
- 238000000889 atomisation Methods 0.000 description 4
- 239000002245 particle Substances 0.000 description 4
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000001788 irregular Effects 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 238000007873 sieving Methods 0.000 description 2
- 238000009692 water atomization Methods 0.000 description 2
- 238000000137 annealing Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005868 electrolysis reaction Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000001307 helium Substances 0.000 description 1
- 229910052734 helium Inorganic materials 0.000 description 1
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 1
- 238000001513 hot isostatic pressing Methods 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 230000007723 transport mechanism Effects 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F9/00—Making metallic powder or suspensions thereof
- B22F9/02—Making metallic powder or suspensions thereof using physical processes
- B22F9/06—Making metallic powder or suspensions thereof using physical processes starting from liquid material
- B22F9/08—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying
- B22F9/082—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying atomising using a fluid
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
- B22F1/06—Metallic powder characterised by the shape of the particles
- B22F1/065—Spherical particles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
- B22F1/14—Treatment of metallic powder
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F9/00—Making metallic powder or suspensions thereof
- B22F9/02—Making metallic powder or suspensions thereof using physical processes
- B22F9/06—Making metallic powder or suspensions thereof using physical processes starting from liquid material
- B22F9/08—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying
- B22F9/082—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying atomising using a fluid
- B22F2009/0888—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying atomising using a fluid casting construction of the melt process, apparatus, intermediate reservoir, e.g. tundish, devices for temperature control
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F9/00—Making metallic powder or suspensions thereof
- B22F9/02—Making metallic powder or suspensions thereof using physical processes
- B22F9/06—Making metallic powder or suspensions thereof using physical processes starting from liquid material
- B22F9/08—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying
- B22F9/082—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying atomising using a fluid
- B22F2009/0896—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying atomising using a fluid particle transport, separation: process and apparatus
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- Engineering & Computer Science (AREA)
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- Manufacture Of Metal Powder And Suspensions Thereof (AREA)
Abstract
The invention relates to the technical field of alloy powder preparation, and provides a high-efficiency preparation device and a preparation method for spherical copper alloy powder, aiming at solving the problems that the existing spherical copper alloy powder is mostly prepared by an aerosol method, but the aerosol method preparation device in the market is low in efficiency during preparation, non-metallic inclusions can be brought into the prepared powder, and the quality of the spherical copper alloy powder is low. The method is particularly suitable for the efficient preparation of the spherical copper alloy powder, and has higher social use value and application prospect.
Description
Technical Field
The invention relates to the technical field of alloy powder preparation, in particular to an efficient preparation device and method for spherical copper alloy powder.
Background
The copper alloy powder is prepared into spherical or irregular particles by an atomization powder preparation method. The spherical copper alloy powder is spherical copper alloy powder particles, has good strength, thermal conductivity, wear resistance and color, and is widely used for manufacturing mechanical parts, porous filters, oil-containing bearings, ornaments and hot-sprayed (welded) hard-face materials.
The preparation of copper alloy powder mainly comprises two methods, namely an electrolysis method and an atomization method. Although the purity of the copper powder produced by the electrolytic method is higher, the production energy consumption is high, so that the cost is high, and the environmental pollution is serious; the atomization method has the advantages of low cost and little pollution, and can produce copper powder with low apparent density.
The atomization method comprises a water atomization method and an aerosol method, wherein powder particles of the water atomization method are mostly irregular in shape, the oxygen content is high (higher than 600 multiplied by 10), the spherical copper alloy powder cannot be directly prepared through annealing treatment, the existing spherical copper alloy powder is mostly prepared through the aerosol method, but the aerosol method preparation device in the market is low in efficiency during preparation, non-metallic inclusions can be brought into the prepared powder, and the quality of the spherical copper alloy powder is low.
Therefore, an efficient preparation device and a preparation method of spherical copper alloy powder are provided.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides an efficient preparation device and a preparation method for spherical copper alloy powder, which overcome the defects of the prior art, have reasonable design and compact structure and aim to solve the problems that the prior spherical copper alloy powder is mostly prepared by an aerosol method, but the aerosol method preparation device in the market has low efficiency on one hand, and non-metallic inclusions are brought into the prepared powder on the other hand, so that the spherical copper alloy powder has low quality.
(II) technical scheme
In order to achieve the purpose, the invention is realized by the following technical scheme:
an efficient preparation device for spherical copper alloy powder comprises a processing case and a plurality of supporting legs arranged at the lower end of the processing case, wherein the inner cavity of the processing case is divided into a preparation cavity and a powder storage cavity, a separation plate I and a separation plate II are sequentially arranged in an inner cavity of the preparation cavity from top to bottom, an alloy liquid dropping mechanism and a high-speed medium outlet disc for atomizing alloy liquid are arranged between the separation plate I and the separation plate II, an air spraying outlet disc is connected with a medium pipe in a through mode, the other end of the medium pipe extends to an outer cavity of the processing machine case and is connected with a medium tank in a through mode, a high-speed pump and an electromagnetic control valve are installed on the medium pipe, one side, away from the air spraying outlet disc, of the separation plate I is connected with the separation plate II through a high-strength filter screen which is installed in an inclined mode, an air outlet is formed in the top wall of the preparation cavity in a;
the alloy liquid dropping mechanism comprises a heat-insulating outer box fixedly mounted on the top wall of the processing case, an alloy liquid box is arranged in an inner cavity of the heat-insulating outer box, a liquid inlet pipe is connected to the lower end of the alloy liquid box in a penetrating manner, the other end of the liquid inlet pipe extends to the preparation cavity and is connected with a transmission cylinder in a penetrating manner, a liquid outlet pipe is connected to the side wall of the transmission cylinder in a penetrating manner, the other end of the liquid outlet pipe penetrates through the side wall of the partition plate I and is provided with a plurality of liquid spraying ports, a one-way liquid inlet valve and a one-way liquid outlet valve are respectively mounted on the liquid inlet pipe and the liquid outlet pipe, a piston is slidably mounted in an inner cavity on one side of the transmission cylinder back to the liquid inlet pipe and the liquid outlet pipe, a driving rod is hinged on the piston, the other end of the driving rod extends to an outer cavity of the transmission cylinder and is, the driving motor is fixedly arranged on the rear wall of the processing case;
screening mechanism includes that the level sets up at the sieve tray that spouts the drip pipe network below, the screen cloth is equipped with to horizontal installation in the inner chamber of sieve tray, and sieve tray both sides in opposite directions are installed on the inner wall in preparation chamber through a plurality of elastic telescopic rod, the spur rack is installed at the lower extreme edge of sieve tray, and the meshing has two to lack the gear on the spur rack, the back axle head that lacks the gear extends to the exocoel of processing machine case and installs driving pulley, two driving pulley are connected through driving belt, one of them driving pulley coaxial arrangement has sprocket III, and sprocket III is connected with sprocket IV through chain II, and sprocket IV fixes the cup joint on driving motor's output.
Preferably, an electric heating piece is arranged in the inner cavity of the heat-insulating outer box, and the electric heating piece is an electric heating pipe which is wound along the inner wall of the heat-insulating outer box in multiple layers.
Preferably, transmission device includes that the level sets up the transmission belt in the sieve tray below, and the inside rotation of transmission belt installs a plurality of transmission rollers, the transmission roller rotates and installs on the inner wall in preparation chamber, the output side of transmission belt is equipped with screw conveyor's pan feeding end, and screw conveyor's discharge end extends to the inner chamber upper portion in storage powder chamber, the rear end of one of them transmission roller extends to the exocoel of processing machine case and installs sprocket I, sprocket I is connected with sprocket II through chain I, and sprocket II is rather than one of them driving pulley coaxial arrangement.
Preferably, a rectangular through hole for allowing spherical copper alloy powder to fall is formed in the side wall of the partition plate II corresponding to the position of the sieve tray, and the rectangular through hole is abutted to the lower end of the high-strength filter screen.
Preferably, a powder discharging box door is installed on the front wall of the processing machine box corresponding to the powder storage cavity.
Preferably, a control panel is arranged on the front wall of the processing case, a display screen and a control button are arranged on the control panel, and a PLC is arranged in the control panel.
The invention also provides a preparation method based on the efficient spherical copper alloy powder preparation device, which comprises the following steps:
s1, smelting a metal raw material into copper alloy liquid with qualified components by using an electric furnace or an induction furnace, and then injecting the copper alloy liquid into an alloy liquid box;
s2, enabling the copper alloy liquid to flow out of a droplet spraying port at the bottom of a droplet spraying pipe network, and enabling the copper alloy liquid to meet a low-temperature high-speed medium when passing through the droplet spraying port to be atomized into fine droplets;
s3, rapidly solidifying the fine liquid drops into spherical copper alloy powder, intercepting the spherical copper alloy powder by a high-strength filter screen, and falling onto the filter screen for screening;
s4, dropping the qualified spherical copper alloy powder on a conveying belt, conveying the powder to a powder storage cavity through a screw conveyer, and completing storage after the spherical copper alloy powder is prepared;
and S5, opening the powder discharging box door for boxing when in use.
Preferably, in the step S1, the injected copper alloy liquid is overheated by 100 to 150 ℃.
(III) advantageous effects
The embodiment of the invention provides an efficient preparation device and a preparation method of spherical copper alloy powder, which have the following beneficial effects:
1. through the combined structure of the alloy liquid dropping mechanism, the medium pipe, the air spraying outlet disc, the medium tank, the high-speed pump and the electromagnetic control valve, the alloy liquid dropping mechanism is used for dropping the alloy liquid, is matched with the high-speed pump and the electromagnetic control valve to be started, meets the high-speed medium and is atomized into fine droplets, and then is rapidly cooled into spherical copper alloy powder, the spherical copper alloy powder is intercepted and collected by the high-strength filter screen, the preparation is completed, and the efficient preparation of the spherical copper alloy powder is effectively guaranteed.
2. Through alloy liquid dropping mechanism and transmission device's integrated configuration, the quick atomizing cooling of alloy liquid drop that alloy liquid dropping mechanism drips becomes spherical copper alloy powder, through the drive mechanism of sprocket I, chain I and sprocket II, realized that the spherical copper alloy powder of screening back accepts and transmits into screw conveyer through the transmission belt, and then promotes to storing up the powder chamber by screw conveyer, realizes dustless storage.
3. Through the combined structure of the alloy liquid dropping mechanism and the screening mechanism, the alloy liquid drops dropped by the alloy liquid dropping mechanism are rapidly atomized and cooled into spherical copper alloy powder, the spherical copper alloy powder drops into the screen disc, the screen disc horizontally moves back and forth, the formed spherical copper alloy powder is sorted, and the quality of the spherical copper alloy powder is ensured.
4. Through the setting of heat preservation outer container, alloy liquid case and electric heat spare, the inside copper alloy liquid drop of effectual assurance alloy liquid case maintains liquid to the alloy liquid drop that drips meets with microthermal high-speed medium and is atomized into fine droplet, and then solidifies spherical copper alloy powder fast, improves preparation efficiency.
Drawings
The above-described characteristics, technical features, advantages and modes of realisation of an apparatus and a method for efficiently producing a spherical copper alloy powder will be described in more detail below with reference to the accompanying drawings, which illustrate preferred embodiments and are clearly understood.
FIG. 1 is a schematic external view of the present invention;
FIG. 2 is a schematic structural view of the present invention;
FIG. 3 is a rear view structural diagram of the present invention;
FIG. 4 is a schematic structural view of a transport mechanism according to the present invention;
FIG. 5 is a schematic view of a part of the structure of the alloy dropping mechanism of the present invention.
In the figure: the processing machine box 1, the preparation cavity 101, the powder storage cavity 102, the supporting legs 2, the medium pipe 3, the air spraying outlet disc 31, the medium tank 4, the high-speed pump 5, the electromagnetic control valve 6, the alloy liquid dropping mechanism 7, the heat preservation outer box 71, the alloy liquid box 72, the electric heating element 73, the transmission cylinder 74, the spray and drip pipe net 75, the one-way liquid inlet valve 76, the one-way liquid outlet valve 77, the piston 78, the driving rod 79, the driving disk 710, the driving motor 711, the partition plate I8, the high-strength filter screen 9, the air outlet 10, the transmission mechanism 11, the transmission roller 110, the transmission belt 111, the spiral transmission machine 112, the sprocket I113, the sprocket II 114, the partition plate II 12, the sieving mechanism 13, the sieve disc 131, the sieve mesh 132, the elastic expansion rod 133, the straight rack 134, the gear lacking 135, the transmission belt wheel 136, the transmission belt 137, the sprocket III 138.
Detailed Description
The invention will be further illustrated with reference to the following figures 1 to 5 and examples:
example 1
An efficient preparation device for spherical copper alloy powder comprises a processing case 1 and a plurality of supporting legs 2 arranged at the lower end of the processing case 1, wherein the inner cavity of the processing case 1 is divided into a preparation cavity 101 and a powder storage cavity 102, a partition plate I8 and a partition plate II 12 are sequentially arranged in the inner cavity of the preparation cavity 101 from top to bottom, an alloy liquid dropping mechanism 7 and a high-speed medium outlet disc 31 for atomizing alloy liquid are arranged between the partition plate I8 and the partition plate II 12, an air spraying outlet disc 31 is in through connection with a medium pipe 3, the other end of the medium pipe 3 extends to the outer cavity of the processing case 1 and is in through connection with a medium tank 4, a high-speed pump 5 and an electromagnetic control valve 6 are arranged on the medium pipe 3, one side of the partition plate I8, which is far away from the air spraying outlet disc 31, is connected with the partition plate II 12 through an obliquely arranged high-strength filter screen 9, the alloy liquid dropping mechanism 7 is used for dropping alloy liquid, is matched with the starting of the high-speed pump 5 and the electromagnetic control valve 6, meets a high-speed medium, is atomized into fine droplets, is rapidly cooled into spherical copper alloy powder, is intercepted and collected by the high-strength filter screen 9, completes preparation, and is sequentially provided with a screening mechanism 13 and a transmission mechanism 11 from top to bottom below the partition plate II 12, and is used for sorting the formed spherical copper alloy powder and transmitting the spherical copper alloy powder to the powder storage cavity 102 for storage;
in this example, the medium is an inert gas such as helium, , nitrogen, etc., which ensures that the atomized spherical copper alloy powder particles are round and have the lowest oxygen content (less than l00 × 10), and can be directly made into a densified product by a hot forming technique (such as hot isostatic pressing).
In this embodiment, as shown in fig. 2, 3 and 5, the alloy liquid dropping mechanism 7 includes an insulating outer box 71 fixedly mounted on the top wall of the processing machine case 1, an alloy liquid box 72 is disposed in an inner cavity of the insulating outer box 71, a liquid inlet pipe is connected to a lower end of the alloy liquid box 72, another end of the liquid inlet pipe extends to the preparation cavity 101 and is connected to the transmission cylinder 74, a liquid outlet pipe is installed on a side wall of the transmission cylinder 74 in a penetrating manner, another end of the liquid outlet pipe penetrates through a side wall of the partition plate i 8 and is installed with a spray pipe network 75, a plurality of spray nozzles are installed at a lower end of the spray pipe network 75, a one-way liquid inlet valve 76 and a one-way liquid outlet valve 77 are respectively installed on the liquid inlet pipe and the liquid outlet pipe, a piston 78 is slidably installed in an inner cavity at one side of the transmission cylinder 74 opposite to the liquid inlet pipe and the liquid outlet pipe, a driving rod 79 is hinged, the rear shaft end of the driving disk 710 extends to the outer cavity of the processing machine case 1 and is installed on the output end of the driving motor 711, and the driving motor 711 is fixedly installed on the rear wall of the processing machine case 1;
in this embodiment, the copper alloy liquid is injected into the alloy liquid tank 72, the driving motor 711 is started to drive the driving disc 710 to rotate, the driving rod 79 drives the piston 78 to slide back and forth in the transmission cylinder 74, and when the copper alloy liquid is pulled, the copper alloy liquid enters the transmission cylinder 74 through the one-way liquid inlet valve 76 opened on the liquid inlet pipe; when the copper alloy powder is pushed, the copper alloy liquid in the transmission cylinder 74 enters the spray and drip pipe network 75 through the one-way liquid outlet valve 77 opened by the liquid outlet pipe, and is dripped out through a plurality of spray drip openings formed at the lower end of the spray and drip pipe network 75, the high-speed pump 5 and the electromagnetic control valve 6 are started, the medium in the medium tank 4 is output and is output in an accelerated manner through the high-speed pump 5, the copper alloy liquid drops dripped out from the spray drip openings meet with the low-temperature high-speed medium and are atomized into fine liquid drops, and then the fine liquid drops are rapidly cooled to form spherical.
In this embodiment, as shown in fig. 2 and 3, the screening mechanism 13 includes a screen tray 131 horizontally disposed below the spray-drip pipe network 75, a screen mesh 132 is horizontally installed in an inner cavity of the screen tray 131, two opposite sides of the screen tray 131 are installed on an inner wall of the preparation cavity 101 through a plurality of elastic expansion rods 133, a spur rack 134 is installed at a lower end edge of the screen tray 131, two missing gears 135 are engaged with the spur rack 134, a rear shaft end of the missing gears 135 extends to an outer cavity of the processing machine case 1 and is installed with a driving pulley 136, the two driving pulleys 136 are connected through a driving belt 137, one of the driving pulleys 136 is coaxially installed with a sprocket iii 138, the sprocket iii 138 is connected with a sprocket iv through a chain ii, the sprocket iv is fixedly sleeved on an output end of a driving motor 711, when the driving motor is started, a transmission mechanism combining the sprocket iv, the chain ii and the sprocket iii 138, and a transmission mechanism combining the two driving pulleys 136 and the driving belt 137, the two gear-lacking gears 135 are effectively driven to synchronously rotate, the meshed spur rack 134 and the elastic telescopic rod 133 are matched, the sieve tray 131 is horizontally pushed to move back and forth, the formed spherical copper alloy powder is sorted, and the quality of the spherical copper alloy powder is ensured.
In this embodiment, as shown in fig. 2, an electric heating element 73 is disposed in the inner cavity of the heat-insulating outer box 71, and the electric heating element 73 is an electric heating tube surrounding the inner wall of the heat-insulating outer box 71 in multiple layers, so as to effectively ensure that the copper alloy liquid drops in the alloy liquid box 72 are in a liquid state.
In this embodiment, as shown in fig. 2 to 4, the conveying mechanism 11 includes a conveying belt 111 horizontally disposed below the sieve tray 131, a plurality of conveying rollers 110 are rotatably mounted inside the conveying belt 111, the conveying rollers 110 are rotatably mounted on the inner wall of the preparation chamber 101, a feeding end of a screw conveyor 112 is disposed on an output side of the conveying belt 111, a discharging end of the screw conveyor 112 extends to the upper portion of the inner chamber of the powder storage chamber 102, a rear end of one of the conveying rollers 110 extends to the outer chamber of the processing machine case 1 and is mounted with a chain wheel i 113, the chain wheel i 113 is connected with a chain wheel ii 114 through a chain i, the chain wheel ii 114 is coaxially mounted with one of the driving pulleys 136, the conveying roller 110 is effectively driven to rotate through a driving mechanism of the chain wheel i 113, the chain i and the chain wheel ii 114, and the conveying belt 111 and the plurality of conveying rollers 110 are rotatably mounted in cooperation, so that the spherical copper alloy powder after being sieved is conveyed into the, and then lifted to the powder storage cavity 102 by the screw conveyer 112, so as to realize dust-free storage.
In this embodiment, as shown in fig. 2, a rectangular through hole for dropping the spherical copper alloy powder is formed in the side wall of the partition plate ii 12 corresponding to the position of the sieve tray 131, and the rectangular through hole is abutted against the lower end of the high-strength filter screen 9, so as to ensure that the spherical copper alloy powder is intercepted by the high-strength filter screen 9 and drops onto the screen 132 for sieving.
In this embodiment, as shown in fig. 1, a powder discharge box door 15 is installed on a front wall of the processing machine case 1 corresponding to the powder storage cavity 102, and is used for opening the stored spherical copper alloy powder for use.
In this embodiment, as shown in fig. 1, a control panel 14 is disposed on the front wall of the processing machine box 1, a display screen and control buttons are disposed on the control panel 14, and a PLC controller is disposed in the control panel 14, in this embodiment, the model of the PLC controller is siemens S7-300, and the control panel 14 is connected to a high-speed pump 5, an electromagnetic control valve 6, an electric heating element 73, a driving motor 711 and a screw conveyor 112 through an electric control line, so as to implement operation of the device and ensure efficient preparation of the spherical copper alloy powder.
Example 2
Referring to example 1, the present invention also provides a preparation method based on the efficient spherical copper alloy powder preparation apparatus, including the steps of:
s1, smelting the metal raw material into copper alloy liquid with qualified components by using an electric furnace or an induction furnace, and then injecting the copper alloy liquid into the alloy liquid box 72;
s2, enabling the copper alloy liquid to flow out of a drop spraying opening at the bottom of the spray and drip pipe network 75, and enabling the copper alloy liquid to meet a low-temperature high-speed medium when passing through the drop spraying opening to be atomized into fine droplets;
s3, rapidly solidifying the fine liquid drops into spherical copper alloy powder, intercepting the spherical copper alloy powder by a high-strength filter screen 9, and falling onto a screen 132 for screening;
s4, dropping the qualified spherical copper alloy powder on a transmission belt 111, and conveying the spherical copper alloy powder into a powder storage cavity 102 through a spiral conveyor 112 to finish storage of the spherical copper alloy powder after preparation;
and S5, opening the powder discharging box door 15 for packing when in use.
In this embodiment, in the step S1, the injected copper alloy liquid is overheated by 100 to 150 ℃ to ensure that the copper alloy liquid maintains a liquid state during the transfer.
Other undescribed structures refer to example 1.
The embodiments of the present invention are disclosed as the preferred embodiments, but not limited thereto, and those skilled in the art can easily understand the spirit of the present invention and make various extensions and changes without departing from the spirit of the present invention.
Claims (8)
1. An efficient preparation device of spherical copper alloy powder comprises a processing case and a plurality of supporting legs arranged at the lower end of the processing case, the processing machine is characterized in that an inner cavity of the processing machine case is divided into a preparation cavity and a powder storage cavity, a partition plate I and a partition plate II are sequentially arranged in the inner cavity of the preparation cavity from top to bottom, an alloy liquid dropping mechanism and a high-speed medium outlet disc for atomizing alloy liquid are arranged between the partition plate I and the partition plate II, an air spraying outlet disc is connected with a medium pipe in a penetrating manner, the other end of the medium pipe extends to an outer cavity of the processing machine case and is connected with a medium tank in a penetrating manner, a high-speed pump and an electromagnetic control valve are mounted on the medium pipe, one side, away from the air spraying outlet disc, of the partition plate I is connected with the partition plate II through a high-strength filter screen which is obliquely mounted, an air outlet is formed in a penetrating manner in;
the alloy liquid dropping mechanism comprises a heat-insulating outer box fixedly mounted on the top wall of the processing case, an alloy liquid box is arranged in an inner cavity of the heat-insulating outer box, a liquid inlet pipe is connected to the lower end of the alloy liquid box in a penetrating manner, the other end of the liquid inlet pipe extends to the preparation cavity and is connected with a transmission cylinder in a penetrating manner, a liquid outlet pipe is connected to the side wall of the transmission cylinder in a penetrating manner, the other end of the liquid outlet pipe penetrates through the side wall of the partition plate I and is provided with a plurality of liquid spraying ports, a one-way liquid inlet valve and a one-way liquid outlet valve are respectively mounted on the liquid inlet pipe and the liquid outlet pipe, a piston is slidably mounted in an inner cavity on one side of the transmission cylinder back to the liquid inlet pipe and the liquid outlet pipe, a driving rod is hinged on the piston, the other end of the driving rod extends to an outer cavity of the transmission cylinder and is, the driving motor is fixedly arranged on the rear wall of the processing case;
screening mechanism includes that the level sets up at the sieve tray that spouts the drip pipe network below, the screen cloth is equipped with to horizontal installation in the inner chamber of sieve tray, and sieve tray both sides in opposite directions are installed on the inner wall in preparation chamber through a plurality of elastic telescopic rod, the spur rack is installed at the lower extreme edge of sieve tray, and the meshing has two to lack the gear on the spur rack, the back axle head that lacks the gear extends to the exocoel of processing machine case and installs driving pulley, two driving pulley are connected through driving belt, one of them driving pulley coaxial arrangement has sprocket III, and sprocket III is connected with sprocket IV through chain II, and sprocket IV fixes the cup joint on driving motor's output.
2. The efficient production apparatus for spherical copper alloy powder according to claim 1, characterized in that: an electric heating piece is arranged in the inner cavity of the heat-preservation outer box, and the electric heating piece is an electric heating pipe which is wound along the inner wall of the heat-preservation outer box in a multi-layer mode.
3. The efficient production apparatus for spherical copper alloy powder according to claim 1, characterized in that: the transmission device comprises a transmission belt horizontally arranged below a screen disc, a plurality of transmission rollers are installed inside the transmission belt in a rotating mode, the transmission rollers are installed on the inner wall of a preparation cavity in a rotating mode, the output side of the transmission belt is provided with a feeding end of a spiral conveyor, the discharging end of the spiral conveyor extends to the upper portion of an inner cavity of a powder storage cavity, the rear end of one of the transmission rollers extends to an outer cavity of a processing machine case and is provided with a chain wheel I, the chain wheel I is connected with a chain wheel II through a chain I, and the chain wheel II is coaxially installed with one of transmission belt wheels.
4. The efficient production apparatus for spherical copper alloy powder according to claim 1, characterized in that: and a rectangular through hole for allowing spherical copper alloy powder to fall is formed in the side wall of the partition plate II corresponding to the position of the sieve tray, and the rectangular through hole is abutted to the lower end of the high-strength filter screen.
5. The efficient production apparatus for spherical copper alloy powder according to claim 1, characterized in that: and a powder discharging box door is arranged on the front wall of the processing machine box corresponding to the powder storage cavity.
6. The efficient production apparatus for spherical copper alloy powder according to claim 1, characterized in that: the front wall of the processing case is provided with a control panel, the control panel is provided with a display screen and a control button, and a PLC is arranged in the control panel.
7. The efficient preparation method of the spherical copper alloy powder is characterized by comprising the following steps of:
s1, smelting a metal raw material into copper alloy liquid with qualified components by using an electric furnace or an induction furnace, and then injecting the copper alloy liquid into an alloy liquid box;
s2, enabling the copper alloy liquid to flow out of a droplet spraying port at the bottom of a droplet spraying pipe network, and enabling the copper alloy liquid to meet a low-temperature high-speed medium when passing through the droplet spraying port to be atomized into fine droplets;
s3, rapidly solidifying the fine liquid drops into spherical copper alloy powder, intercepting the spherical copper alloy powder by a high-strength filter screen, and falling onto the filter screen for screening;
s4, dropping the qualified spherical copper alloy powder on a conveying belt, conveying the powder to a powder storage cavity through a screw conveyer, and completing storage after the spherical copper alloy powder is prepared;
and S5, opening the powder discharging box door for boxing when in use.
8. The efficient production method of a spherical copper alloy powder according to claim 7, characterized by comprising: in the step S1, the injected copper alloy liquid is overheated by 100-150 ℃.
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