CN104785788A - High pressure water atomization nozzle for steel pulverization - Google Patents
High pressure water atomization nozzle for steel pulverization Download PDFInfo
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- CN104785788A CN104785788A CN201510191317.2A CN201510191317A CN104785788A CN 104785788 A CN104785788 A CN 104785788A CN 201510191317 A CN201510191317 A CN 201510191317A CN 104785788 A CN104785788 A CN 104785788A
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- nozzle
- hole
- injector head
- high pressure
- pressure water
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Abstract
The invention provides a high pressure water atomization nozzle for steel pulverization. The high pressure water atomization nozzle comprises a nozzle shell, a nozzle wick and injection heads. The nozzle wick is provided with a center through hole. An annular groove is formed in the outer side wall of the nozzle wick. The nozzle wick is sleeved with the nozzle shell in a sealed mode. An annular space is formed between the nozzle shell and the nozzle wick through the annular groove. The injection heads are cylindrical. Each injection head is internally provided with an injection hole. An inner circle of injection head installation holes and an outer circle of injection head installation holes are arranged on the lower bottom face of the nozzle wick along the periphery of the center through hole of the nozzle wick. The bottoms of the injection head installation holes are provided with connecting through holes communicated with the annular space. The injection heads are arranged inside the injection hole installation holes. When the injection holes are blocked, the injection heads can be cleaned only after being disassembled, the whole nozzle wick does not need to be disassembled, and operation is easy and convenient; when the injection effect is affected due to the fact that the injection holes become large, only the injection heads need to be replaced, the whole nozzle wick does not need to be replaced, and the maintenance cost can be saved.
Description
Technical field
The present invention relates to hydraulic atomization metal dust preparation technique field, be specifically related to a kind of iron and steel powder process high pressure water atomization nozzle.
Background technology
Produce in powder production in atomization, water atomization is one of main production method.On the one hand because atomizing medium water is with low cost and easily obtain, considers from the angle of nebulization efficiency on the other hand, water atomization shows more outstanding.
Chinese patent 201320191663.7 discloses a kind of high pressure water atomization nozzle, comprises nozzle body and nozzle core, and the lateral wall of nozzle core is provided with annular groove, the bottom surface of annular groove is provided with inside and outside two circle hole for water sprayings.The delivery port of hole for water spraying is towards the axis of nozzle core; Nozzle body and nozzle core form the airtight annulus with hole for water spraying.Its weak point is, if there is a hole for water spraying to be blocked by spot in use procedure, during cleaning, needs to dismantle whole nozzle core, uses extremely inconvenient.
Summary of the invention
With regard to the defect of above prior art, the object of this invention is to provide a kind of iron and steel powder process high pressure water atomization nozzle.
For solving the problems of the technologies described above, the present invention proposes a kind of iron and steel powder process high pressure water atomization nozzle, comprises nozzle body, has the nozzle core of central through hole and injector head;
The lateral wall of described nozzle core is provided with annular groove, and described nozzle body is sheathed on described nozzle core hermetically, and forms annulus by described annular groove between described nozzle core;
Described injector head is cylindric, has spray-hole in described injector head, the axis of described spray-hole and the dead in line of described injector head;
The bottom surface of described nozzle core is provided with around the central through hole of described nozzle core inside and outside two circle injector head installing holes, its connecting through hole be communicated with annulus is had bottom described injector head installing hole, described injector head is arranged in described injector head installing hole, the angle that the axis of described injector head and the axis of described nozzle core are is 12 ° ~ 22 °, and the delivery port of described injector head is towards the axis of described nozzle core.
Preferably, the diameter of described injector head installing hole is greater than the straight warp of described connecting through hole, is provided with the first high-pressure sealing ring between bottom described injector head and described injector head installing hole.
Preferably, the cross-sectional area of described spray-hole reduces along near described connecting through hole one end gradually to away from described connecting through hole one end.
Preferably, the lower end edge inclined-plane of the central through hole of described nozzle core is expanding is trumpet-shaped centre bore, and described injector head mounting hole site is on expanding inclined-plane.
Preferably, described nozzle core upper end has L-type groove, and lower edge is provided with the first boss.
Preferably, the upper end inwall of described nozzle body is provided with for the second boss with described L-type slot fit, and lower surface and described first boss upper surface against, the bottom surface of L-type groove and the bottom surface of nozzle body all have screwed hole, first boss second boss all has the through hole steathily matched with screwed hole, described nozzle body and described nozzle core are threaded connection.
Preferably, the second high-pressure sealing ring is provided with between the faying face of described nozzle body and described nozzle core.
Preferably, the material of described nozzle body is 304 stainless steels.
Preferably, the material of described nozzle core and injector head is 9Cr18MoV.
Beneficial effect of the present invention is: around nozzle core central through hole, arrange inside and outside two circle injector head installing holes, injector head installing hole is communicated with the annulus surrounded between nozzle core and nozzle body, injector head is arranged in injector head installing hole, in injector head, there is spray-hole, the spray angle of spray-hole is at 12 ° ~ 22 °, two highly different convergent points can be formed on the axis of nozzle core during injection stream, when adopting inside and outside two circle jet, the negative pressuren zone that the water column of jet is formed will increase, its negative pressuren zone also will strengthen the swabbing action of molten metal, and then ensure that molten metal at the uniform velocity, the stable range of atomization entering into high pressure water atomization nozzle, improve stability and the continuity of atomization process, this pattern, to greatest extent metallic solution is smashed also rapid condensation and become metal dust, improve the nebulization efficiency of nozzle and the fine powder rate of product.Meanwhile, when spray-hole is plugged, only injector head need be pulled down and carry out clearing up, without the need to dismantling whole nozzle core, simple to operation, when spray-hole affects jeting effect because becoming large, only need changing injector head, without the need to changing whole nozzle core, can maintenance cost be saved.Be provided with the first high-pressure sealing ring between bottom injector head and injector head installing hole, be provided with the second high-pressure sealing ring between nozzle body and the faying face of nozzle core, can leaked water be prevented, affect expulsion pressure.Nozzle body and nozzle core to be coordinated with nozzle body bottom surface by the second boss and L-type and the first boss to be installed, and installation more firmly, in turn ensure that sealing simultaneously.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of iron and steel powder process high pressure water atomization nozzle that the present invention proposes.
Fig. 2 is injector head structure for amplifying schematic diagram in Fig. 1.
In figure: 1, nozzle body, 2, nozzle core, 21, injector head installing hole, 3, injector head, 31, spray-hole.
Detailed description of the invention
With reference to Fig. 1, a kind of iron and steel powder process high pressure water atomization nozzle, comprises nozzle body 1, has the nozzle core 2 of central through hole and injector head 3, the material of described nozzle body 1 is 304 stainless steels, the material of described nozzle core 2 and injector head is 9Cr18MoV, the lower end edge inclined-plane of the central through hole of described nozzle core 2 is expanding is trumpet-shaped centre bore, described injector head installing hole 21 is positioned on expanding inclined-plane, the lateral wall of described nozzle core 2 is provided with annular groove, described nozzle body 1 is sheathed on described nozzle core 2 hermetically, and form annulus by described annular groove between described nozzle core 2, preferably, described nozzle core 2 upper end has L-type groove, lower edge is provided with the first boss, the upper end inwall of described nozzle body 1 is provided with for the second boss with described L-type slot fit, and lower surface and described first boss upper surface against, the bottom surface of L-type groove and the bottom surface of nozzle body all have screwed hole, first boss second boss all has the through hole steathily matched with screwed hole, described nozzle body 1 and described nozzle core 2 are threaded connection, the second high-pressure sealing ring is provided with between described nozzle body 1 and the faying face of described nozzle core 2.
Described injector head 3 is in cylindric, in described injector head 3, there is spray-hole 31, the axis of described spray-hole 31 and the dead in line of described injector head 3, preferably, the cross-sectional area of described spray-hole 31 reduces along near described connecting through hole one end gradually to away from described connecting through hole one end.
The bottom surface of described nozzle core 2 is provided with around the central through hole of described nozzle core 2 inside and outside two circle injector head installing holes 21, its connecting through hole be communicated with annulus is had bottom described injector head installing hole 21, described injector head 3 is arranged in described injector head installing hole 21, the diameter of described injector head installing hole 21 is greater than the straight warp of described connecting through hole, the first high-pressure sealing ring is provided with between bottom described injector head 3 and described injector head installing hole 21, the angle that the axis of described injector head 3 and the axis of described nozzle core 2 are is 12 ° ~ 22 °, the delivery port of described injector head 21 is towards the axis of described nozzle core 2.
In the present invention, inside and outside two circle injector head installing holes 21 are set around nozzle core 2 central through hole, injector head installing hole 21 is communicated with the annulus surrounded between nozzle core 2 and nozzle body 1, injector head 3 to be arranged in injector head installing hole 21, there is in injector head 3 spray-hole 31, the spray angle of spray-hole 31 is at 12 ° ~ 22 °, two highly different convergent points can be formed on the axis of nozzle core 2 during injection stream, when adopting inside and outside two circle jet, the negative pressuren zone that the water column of jet is formed will increase, its negative pressuren zone also will strengthen the swabbing action of molten metal, and then ensure that molten metal at the uniform velocity, the stable range of atomization entering into high pressure water atomization nozzle, improve stability and the continuity of atomization process, this pattern, to greatest extent metallic solution is smashed also rapid condensation and become metal dust, improve the nebulization efficiency of nozzle and the fine powder rate of product.Meanwhile, when spray-hole 31 is plugged, only injector head 3 need be pulled down and carry out clearing up, without the need to dismantling whole nozzle core 2, simple to operation, when spray-hole 31 affects jeting effect because becoming large, only need changing injector head 3, without the need to changing whole nozzle core 2, can maintenance cost be saved.Be provided with the first high-pressure sealing ring between bottom injector head 3 and injector head installing hole 21, be provided with the second high-pressure sealing ring between the faying face of nozzle body 1 and nozzle core 2, can leaked water be prevented, affect expulsion pressure.Nozzle body 1 and nozzle core 2 to be coordinated with nozzle body 1 bottom surface by the second boss and L-type and the first boss to be installed, and installation more firmly, in turn ensure that sealing simultaneously.
More than show and describe general principle of the present invention and principal character and advantage of the present invention.The technology people of the industry should understand; the present invention is not restricted to the described embodiments; what describe in above-described embodiment and description just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.Application claims protection domain is defined by appending claims and equivalent thereof.
Claims (9)
1. an iron and steel powder process high pressure water atomization nozzle, is characterized in that: comprise nozzle body (1), have the nozzle core (2) of central through hole and injector head (3);
The lateral wall of described nozzle core (2) is provided with annular groove, and described nozzle body (1) is sheathed on described nozzle core (2) hermetically, and forms annulus by described annular groove between described nozzle core (2);
Described injector head (3), in cylindric, has spray-hole (31) in described injector head (3), the axis of described spray-hole (31) and the dead in line of described injector head (3);
The bottom surface of described nozzle core (2) is provided with around the central through hole of described nozzle core (2) inside and outside two circles injector head installing hole (21), described injector head installing hole (21) bottom has its connecting through hole be communicated with annulus, described injector head (3) is arranged in described injector head installing hole (21), the angle that the axis of described injector head (3) and the axis of described nozzle core (2) are is 12 ° ~ 22 °, and the delivery port of described injector head (21) is towards the axis of described nozzle core (2).
2. iron and steel powder process high pressure water atomization nozzle as claimed in claim 1, it is characterized in that, the diameter of described injector head installing hole (21) is greater than the straight warp of described connecting through hole, is provided with the first high-pressure sealing ring between described injector head (3) and described injector head installing hole (21) bottom.
3. iron and steel powder process high pressure water atomization nozzle as claimed in claim 1, is characterized in that, the cross-sectional area of described spray-hole (31) reduces along near described connecting through hole one end gradually to away from described connecting through hole one end.
4. iron and steel powder process high pressure water atomization nozzle as claimed in claim 1, it is characterized in that, the lower end edge inclined-plane of the central through hole of described nozzle core (2) is expanding is trumpet-shaped centre bore, and described injector head installing hole (21) is positioned on expanding inclined-plane.
5. iron and steel powder process high pressure water atomization nozzle as claimed in claim 1, it is characterized in that, described nozzle core (2) upper end has L-type groove, and lower edge is provided with the first boss.
6. iron and steel powder process high pressure water atomization nozzle as claimed in claim 5, it is characterized in that, the upper end inwall of described nozzle body (1) is provided with for the second boss with described L-type slot fit, and lower surface and described first boss upper surface against, the bottom surface of L-type groove and the bottom surface of nozzle body all have screwed hole, first boss second boss all has the through hole steathily matched with screwed hole, described nozzle body (1) and described nozzle core (2) are threaded connection.
7. iron and steel powder process high pressure water atomization nozzle as claimed in claim 6, is characterized in that, be provided with the second high-pressure sealing ring between the faying face of described nozzle body (1) and described nozzle core (2).
8. iron and steel powder process high pressure water atomization nozzle as claimed in claim 1, it is characterized in that, the material of described nozzle body (1) is 304 stainless steels.
9. iron and steel powder process high pressure water atomization nozzle as claimed in claim 1, it is characterized in that, the material of described nozzle core (2) and injector head is 9Cr18MoV.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510191317.2A CN104785788A (en) | 2015-04-22 | 2015-04-22 | High pressure water atomization nozzle for steel pulverization |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510191317.2A CN104785788A (en) | 2015-04-22 | 2015-04-22 | High pressure water atomization nozzle for steel pulverization |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104785788A true CN104785788A (en) | 2015-07-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510191317.2A Pending CN104785788A (en) | 2015-04-22 | 2015-04-22 | High pressure water atomization nozzle for steel pulverization |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105397099A (en) * | 2015-12-18 | 2016-03-16 | 无锡幸运环保设备有限公司 | Full-automatic program control wet process performing liquid metal pelletization system and method of liquid metal pelletization |
| CN105664798A (en) * | 2016-02-26 | 2016-06-15 | 上海齐耀热能工程有限公司 | Atomizing nozzle |
| CN110238408A (en) * | 2019-07-08 | 2019-09-17 | 湖南金昊新材料科技股份有限公司 | A kind of sub-nanometer atomization system with gas ring cutting device |
| EP3868492A1 (en) * | 2020-02-20 | 2021-08-25 | Kolon Industries, Inc. | Spray nozzle and metal powder manufacturing apparatus including same |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2398039Y (en) * | 1999-11-23 | 2000-09-27 | 北京科因技术开发有限公司 | High-pressure water atomized powder making device |
| JP2004107740A (en) * | 2002-09-19 | 2004-04-08 | Seiko Epson Corp | Method and apparatus for producing metal powder by water atomization method, metal powder, and part |
| JP2004169081A (en) * | 2002-11-19 | 2004-06-17 | Mitsui Mining & Smelting Co Ltd | Metal powder and its manufacturing method |
| CN2915327Y (en) * | 2006-04-24 | 2007-06-27 | 安徽宏宇科技有限公司 | Water-atomization jet device for whole-sphere shape metal powder production |
| CN104107919A (en) * | 2013-04-16 | 2014-10-22 | 株洲火炬工业炉有限责任公司 | High-pressure water atomizing nozzle |
-
2015
- 2015-04-22 CN CN201510191317.2A patent/CN104785788A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2398039Y (en) * | 1999-11-23 | 2000-09-27 | 北京科因技术开发有限公司 | High-pressure water atomized powder making device |
| JP2004107740A (en) * | 2002-09-19 | 2004-04-08 | Seiko Epson Corp | Method and apparatus for producing metal powder by water atomization method, metal powder, and part |
| JP2004169081A (en) * | 2002-11-19 | 2004-06-17 | Mitsui Mining & Smelting Co Ltd | Metal powder and its manufacturing method |
| CN2915327Y (en) * | 2006-04-24 | 2007-06-27 | 安徽宏宇科技有限公司 | Water-atomization jet device for whole-sphere shape metal powder production |
| CN104107919A (en) * | 2013-04-16 | 2014-10-22 | 株洲火炬工业炉有限责任公司 | High-pressure water atomizing nozzle |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105397099A (en) * | 2015-12-18 | 2016-03-16 | 无锡幸运环保设备有限公司 | Full-automatic program control wet process performing liquid metal pelletization system and method of liquid metal pelletization |
| CN105664798A (en) * | 2016-02-26 | 2016-06-15 | 上海齐耀热能工程有限公司 | Atomizing nozzle |
| CN105664798B (en) * | 2016-02-26 | 2018-10-16 | 上海齐耀热能工程有限公司 | Atomizer |
| CN110238408A (en) * | 2019-07-08 | 2019-09-17 | 湖南金昊新材料科技股份有限公司 | A kind of sub-nanometer atomization system with gas ring cutting device |
| EP3868492A1 (en) * | 2020-02-20 | 2021-08-25 | Kolon Industries, Inc. | Spray nozzle and metal powder manufacturing apparatus including same |
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| PB01 | Publication | ||
| EXSB | Decision made by sipo to initiate substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
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Application publication date: 20150722 |