CN106694895A - Water and air combined atomizing powder making device - Google Patents

Water and air combined atomizing powder making device Download PDF

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Publication number
CN106694895A
CN106694895A CN201710146877.5A CN201710146877A CN106694895A CN 106694895 A CN106694895 A CN 106694895A CN 201710146877 A CN201710146877 A CN 201710146877A CN 106694895 A CN106694895 A CN 106694895A
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CN
China
Prior art keywords
water
outlet
atomization
air
gas
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201710146877.5A
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Chinese (zh)
Inventor
不公告发明人
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hunan Asahi Metallurgical Technology Co Ltd
Original Assignee
Hunan Asahi Metallurgical Technology Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hunan Asahi Metallurgical Technology Co Ltd filed Critical Hunan Asahi Metallurgical Technology Co Ltd
Priority to CN201710146877.5A priority Critical patent/CN106694895A/en
Publication of CN106694895A publication Critical patent/CN106694895A/en
Pending legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22FWORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F9/00Making metallic powder or suspensions thereof
    • B22F9/02Making metallic powder or suspensions thereof using physical processes
    • B22F9/06Making metallic powder or suspensions thereof using physical processes starting from liquid material
    • B22F9/08Making 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
    • B22F9/082Making 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
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22FWORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F9/00Making metallic powder or suspensions thereof
    • B22F9/02Making metallic powder or suspensions thereof using physical processes
    • B22F9/06Making metallic powder or suspensions thereof using physical processes starting from liquid material
    • B22F9/08Making 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
    • B22F9/082Making 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
    • B22F2009/086Cooling after atomisation
    • B22F2009/0872Cooling after atomisation by water
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22FWORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F9/00Making metallic powder or suspensions thereof
    • B22F9/02Making metallic powder or suspensions thereof using physical processes
    • B22F9/06Making metallic powder or suspensions thereof using physical processes starting from liquid material
    • B22F9/08Making 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
    • B22F9/082Making 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
    • B22F2009/086Cooling after atomisation
    • B22F2009/0876Cooling after atomisation by gas

Abstract

The invention discloses a water and air combined atomizing powder making device. The water and air combined atomizing powder making device comprises an atomizer body. The atomizer body is provided with a molten steel leakage opening, at least one air inlet, at least one air outlet, at least one water inlet and at least one water atomizing outlet. The water and air combined atomizing powder making device further comprises an annular air guiding groove and an annular water guiding groove. The air guiding groove communicates with the air inlet and the air outlet. The water guiding groove communicates with the water inlet and the water atomizing outlet. The focus point of the spraying line of the air outlet and the focus point of the spraying line of the water atomizing outlet are located on the center line of the molten steel leakage opening, and the focus point of the spraying line of the air outlet is higher than the focus point of the spraying line of the water atomizing outlet. Water and air combined atomizing in the water and air combined atomizing powder making device is developed and invented on the basis of water atomization, air atomization and water atomization are combined, some defects existing in water atomization are overcome, and the functions of more efficient powder discharging, water return and liquid blockage preventing and the like are achieved.

Description

A kind of water-gas combined powder by atomization device
Technical field
The invention belongs to metal dust preparing technical field, and in particular to a kind of water-gas combined powder by atomization device.
Background technology
Current metal dust is prepared and typically uses water atomization, and the operation principle of water atomization pulverization device refers in atmospheric conditions Lower smelting metal or metal alloy, under conditions of gas shield, metal liquid is flowed down by insulation tundish, mozzle During, metal liquid is atomized by high-pressure water or gas by nozzle and is broken into a large amount of tiny molten drops, tiny liquid Drop in it is lower under the quick cooling collective effect of surface tension and water in flight course form sub- spherical or irregular shape particle, reach To the purpose of powder processed.
There is problems with current water atomization pulverization:
1st, the water droplet backflow molten steel leak splashed when current intersect with molten steel collision, causes solidification of molten steel to block leak influence life Produce;
2nd, current primary fragmentation, the production efficiency of powder is not high, and the granularity of powder is uneven.
The content of the invention
In order to solve the above problems, the present invention provides a kind of water-gas combined powder by atomization device, and the present invention is by following technology Scheme realizes above-mentioned purpose:
A kind of water-gas combined powder by atomization device, including nebulizer body, the nebulizer body are provided with molten steel leak, at least one Individual air inlet, at least one gas outlet, at least one water inlet and at least one water atomization outlet, the gas outlet and air inlet It is connected, the water atomization outlet is connected with water inlet, the injection line focus of the gas outlet and water atomization outlet is located at steel On the center line of liquid leak, and the line focus that sprays of gas outlet is higher than the injection line focus that water atomization is exported.
Preferably, air slot and guiding gutter are additionally provided with the nebulizer body, the air slot connects air inlet and goes out Gas port, the guiding gutter connection water inlet and water atomization outlet.
Preferably, the air slot and guiding gutter are annular groove.
Preferably, it is provided with protective case between the molten steel leak and nebulizer body.
Preferably, annular is evenly equipped with multiple water atomization outlets on the nebulizer body.
Preferably, the water atomization outlet is water atomizing nozzle.
Preferably, annular is evenly equipped with multiple air inlets and water inlet on the nebulizer body.
Preferably, the gas outlet is the ring-crack ventilation air stream outlet for gradually drawing in.
Preferably, high pressure draught, the water inlet input are ejected in the air inlet input gases at high pressure, the gas outlet High-Pressure Water is ejected in water under high pressure, the water atomization outlet.
The beneficial effects of the invention are as follows:
1st, water-gas combined atomization is that invention is developed on the basis of water atomization, by aerosolization combination water atomization, than single water Powder efficiency high is atomized out, oxygen content in power is low.
2nd, ring-crack ventilation air stream outlet is provided with, thin seam outlet is gradually drawn in, not only increases gas kinetic energy, and ring structures shape Into enclosed high pressure gas curtain, the water droplet backflow molten steel leak splashed when can prevent current from colliding intersecting causes solidification of molten steel to block leakage Mouth influence production.
3rd, water atomizing nozzle annular is uniform in the present invention, then the current that water atomizing nozzle sprays are also annular uniform, collision Air-flow can be discharged from current gap, and partial high pressure disturbance will not be formed to air pressure inside.
Brief description of the drawings
Fig. 1 is structural representation of the invention;
Fig. 2 is a-a sectional views in Fig. 1;
Fig. 3 is b-b sectional views in Fig. 1;
In figure:1 nebulizer body, 2 air inlets, 3 air slots, 4 molten steel leak, 5 protective cases, 6, water inlet, 7 guiding gutters, 8 gas Stream, 9 current, 10 ring-crack ventilation air stream outlets, 11 water atomizing nozzles.
Specific embodiment
Below in conjunction with accompanying drawing, technical scheme is clearly and completely described.
Embodiment 1
As Figure 1-3, a kind of water-gas combined powder by atomization device, including nebulizer body 1, the nebulizer body is provided with steel Liquid leak 4, air inlet 2, air slot 3, gas outlet, water inlet 6, guiding gutter 7 and 6 water atomizing nozzles 11;Molten steel leak and mist Resistant to elevated temperatures protective case 5 is provided between change device main body;The air slot and guiding gutter are annular groove.The air slot and air inlet Mouth is connected, and the gas outlet is connected with air slot;The guiding gutter is connected with water inlet, the water atomizing nozzle with lead Tank is connected.The gas outlet is the ring-crack ventilation air stream outlet 10 for gradually drawing in, and 6 water atomizing nozzles annular is uniform, The injection line focus of the gas outlet and water atomizing nozzle is located on the center line of molten steel leak, and gas outlet injection line focus Higher than the injection line focus that water atomization is exported.
In the present embodiment, the air inlet is input into gases at high pressure, and high pressure high energy air-flow 8 is ejected in the gas outlet, described Water inlet is input into water under high pressure, and high pressure high energy current 9 are ejected in the water atomization outlet.
This noodles making machine is mounted in the most crucial main part for water atomization pulverization on water atomization tower body, molten steel from After molten steel leak vertically falls, high pressure high energy air-flow primary fragmentation is first passed through, then by high pressure high energy current second-time breakage, it is real Existing air-flow current joint crushes powder processed, and prepared by liquid metal is metal dust.
Water-gas combined atomization of the invention is that invention is developed on the basis of water atomization, by aerosolization combination water atomization, Improve some shortcomings existing for water atomization, break-through skill mode, it is more more efficient than single water atomization go out powder.Air-flow is tentatively crushed Afterwards, water-cooled second-time breakage powder is lower than oxygen content in power prepared by single water atomization.
The present invention uses ring-crack ventilation air stream outlet, gradually draws thin seam outlet in, not only increases gas kinetic energy;And ring type knot High-pressure sealed gas curtain is configured to, the water droplet backflow molten steel leak splashed when can prevent current from colliding intersecting causes solidification of molten steel to block up Plug leak influence production.Meanwhile, 6 water atomizing nozzle annulars are uniform, then the current that water atomizing nozzle sprays are also uniform annular, Impinging air flows can be discharged from current gap, and partial high pressure disturbance will not be formed to air pressure inside.
Embodiment 2
As different from Example 1, the uniform multiple air inlet of annular and water inlet on the nebulizer body, so that ejecting Air-flow and water flow pressure are more balanced.
Obviously, embodiment described above is only the preferred embodiment of the present invention, rather than whole embodiments.Based on this hair Embodiment in bright, the every other implementation that those of ordinary skill in the art are obtained under the premise of creative work is not made Example, belongs to the scope of protection of the invention.

Claims (9)

1. a kind of water-gas combined powder by atomization device, it is characterised in that including nebulizer body, the nebulizer body is provided with steel Liquid leak, at least one air inlet, at least one gas outlet, at least one water inlet and at least one water atomization outlet, it is described Gas outlet is connected with air inlet, and the water atomization outlet is connected with water inlet, the spray of the gas outlet and water atomization outlet Radiation is located on the center line of molten steel leak, and the injection line focus of gas outlet is burnt higher than the spray line of water atomization outlet Point.
2. a kind of water-gas combined powder by atomization device according to claim 1, it is characterised in that on the nebulizer body also Air slot and guiding gutter are provided with, the air slot connects air inlet and gas outlet, and the guiding gutter connects water inlet and water atomization Outlet.
3. a kind of water-gas combined powder by atomization device according to claim 2, it is characterised in that the air slot and guiding gutter It is annular groove.
4. a kind of water-gas combined powder by atomization device according to claim 1, it is characterised in that the molten steel leak and atomization Protective case is provided between device main body.
5. a kind of water-gas combined powder by atomization device according to claim any one of 1-4, it is characterised in that the atomizer Annular is evenly equipped with multiple water atomization outlets in main body.
6. a kind of water-gas combined powder by atomization device according to claim 5, it is characterised in that the water atomization outlet is water Atomizer.
7. a kind of water-gas combined powder by atomization device according to claim any one of 1-4, it is characterised in that the atomizer Annular is evenly equipped with multiple air inlets and water inlet in main body.
8. a kind of water-gas combined powder by atomization device according to claim any one of 1-4, it is characterised in that the gas outlet It is the ring-crack ventilation air stream outlet for gradually drawing in.
9. a kind of water-gas combined powder by atomization device according to any one of claim 1-4,5,6,7,8, it is characterised in that institute Air inlet input gases at high pressure are stated, high pressure draught is ejected in the gas outlet, and the water inlet is input into water under high pressure, the water atomization High-Pressure Water is ejected in outlet.
CN201710146877.5A 2017-03-13 2017-03-13 Water and air combined atomizing powder making device Pending CN106694895A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201710146877.5A CN106694895A (en) 2017-03-13 2017-03-13 Water and air combined atomizing powder making device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201710146877.5A CN106694895A (en) 2017-03-13 2017-03-13 Water and air combined atomizing powder making device

Publications (1)

Publication Number Publication Date
CN106694895A true CN106694895A (en) 2017-05-24

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Country Status (1)

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CN (1) CN106694895A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109877311A (en) * 2019-04-17 2019-06-14 泉州天智合金材料科技有限公司 A kind of MIM is injection moulded high-end cutter, metal powder and preparation method thereof
CN111534765A (en) * 2020-05-27 2020-08-14 安泰(霸州)特种粉业有限公司 Spherical amorphous alloy powder preparation device and method
CN111590083A (en) * 2020-05-27 2020-08-28 安泰(霸州)特种粉业有限公司 Preparation method of spherical nanocrystalline alloy powder

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US20110283835A1 (en) * 2006-04-25 2011-11-24 Seiko Epson Corporation Metal powder manufacturing device, metal powder, and molded body
CN201900264U (en) * 2010-12-01 2011-07-20 同济大学 Unrestricted high-pressure gas atomizing nozzle
CN202367207U (en) * 2011-10-22 2012-08-08 长沙金钲金属材料有限公司 Free fall double-layer unlimited atomizing nozzle for preparing metal powder
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CN206898395U (en) * 2017-03-13 2018-01-19 湖南旭博冶金科技有限公司 A kind of water-gas combined powder by atomization device

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109877311A (en) * 2019-04-17 2019-06-14 泉州天智合金材料科技有限公司 A kind of MIM is injection moulded high-end cutter, metal powder and preparation method thereof
CN111534765A (en) * 2020-05-27 2020-08-14 安泰(霸州)特种粉业有限公司 Spherical amorphous alloy powder preparation device and method
CN111590083A (en) * 2020-05-27 2020-08-28 安泰(霸州)特种粉业有限公司 Preparation method of spherical nanocrystalline alloy powder
CN111534765B (en) * 2020-05-27 2024-03-15 安泰(霸州)特种粉业有限公司 Spherical amorphous alloy powder preparation device and method

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