JP2016204718A5 - - Google Patents
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- JP2016204718A5 JP2016204718A5 JP2015089950A JP2015089950A JP2016204718A5 JP 2016204718 A5 JP2016204718 A5 JP 2016204718A5 JP 2015089950 A JP2015089950 A JP 2015089950A JP 2015089950 A JP2015089950 A JP 2015089950A JP 2016204718 A5 JP2016204718 A5 JP 2016204718A5
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- combustion
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- combustion flame
- powder manufacturing
- combustion chamber
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- 238000002485 combustion reaction Methods 0.000 claims description 97
- 239000000843 powder Substances 0.000 claims description 35
- 238000002347 injection Methods 0.000 claims description 30
- 239000007924 injection Substances 0.000 claims description 30
- 238000004519 manufacturing process Methods 0.000 claims description 27
- 239000000446 fuel Substances 0.000 claims description 8
- 230000002093 peripheral Effects 0.000 claims description 5
- 239000002994 raw material Substances 0.000 claims description 5
- 239000006200 vaporizer Substances 0.000 claims description 4
- 238000001816 cooling Methods 0.000 claims description 3
- 238000004942 thermal barrier coating Methods 0.000 claims description 3
- 239000007788 liquid Substances 0.000 claims description 2
- 239000003381 stabilizer Substances 0.000 claims description 2
- 238000005452 bending Methods 0.000 claims 1
- 239000002184 metal Substances 0.000 description 5
- 230000000875 corresponding Effects 0.000 description 3
- 238000007751 thermal spraying Methods 0.000 description 3
- 238000011144 upstream manufacturing Methods 0.000 description 2
- 239000003350 kerosene Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
Description
上記目的を達成するために、本発明に係る粉末製造装置は、燃焼炎を発生させる複数の燃焼炎発生部と、前記燃焼炎発生部で発生した燃焼炎が燃焼路を通じて流入する燃焼室と、前記燃焼室の中央部に配置され、前記燃焼室の壁部との間に円環状の噴射口を形成するセンターコーンと、前記センターコーンの中心を貫通して設けられ、原料を前記噴射口の中央に形成された供給口へ供給する供給路と、前記燃焼室内へ前記噴射口の周囲に間隔をあけて設けられた複数の整流板と、を備え、前記燃焼路は、前記燃焼炎発生部で発生した前記燃焼炎が前記燃焼室の側壁に沿って回転するように噴出させ、前記整流板は、前記噴射口の周囲を回転する前記燃焼炎の流れを前記噴射口に向かう方向に曲げることで、回転する前記燃焼炎の回転方向成分を抑える。 In order to achieve the above object, a powder manufacturing apparatus according to the present invention includes a plurality of combustion flame generating units that generate a combustion flame, a combustion chamber into which the combustion flame generated in the combustion flame generating unit flows through a combustion path , A center cone that is disposed in the center of the combustion chamber and that forms an annular injection port between the combustion chamber and the wall of the combustion chamber, and is provided through the center of the center cone. A supply path for supplying to a supply port formed in the center; and a plurality of rectifying plates provided at intervals around the injection port in the combustion chamber; and the combustion path includes the combustion flame generating section The combustion flame generated in step 1 is ejected so as to rotate along the side wall of the combustion chamber, and the flow straightening plate bends the flow of the combustion flame rotating around the injection port in a direction toward the injection port. The rotational direction component of the rotating combustion flame Suppress.
本発明に係る粉末製造装置では、前記燃焼室は、前記噴射口から周囲に向かって広がって、側壁で円形状に囲まれており、前記燃焼炎発生部で発生した燃焼炎は前記燃焼路を通って前記燃焼室に流入する。前記燃焼室流入した燃焼炎は、前記燃焼室の側壁に沿って前記噴射口の周囲を回転する。燃焼室の内部で燃焼炎を回転させることにより、燃焼炎の流れを均一に整えることができ、ほぼ均等な速度および圧力で、噴射口から円環状の燃焼炎を噴射することができる。前記燃焼室の内部には、回転する燃焼炎の流れを、前記噴射口に向かう方向に曲げるよう、前記噴射口の周囲に複数の整流板が設けられている。整流板により、回転していた燃焼炎の流れを噴射方向に変えることができ、円環状の燃焼炎の噴射方向成分の速度を上げることができる。また、円環状の燃焼炎の回転方向成分を抑え、原料が円環状の燃焼炎に沿って回転するのを抑制することができ、品質の良い粉末を得ることができる。 In powder production apparatus according to the present invention, the combustion chamber, extends from the injection port toward the periphery is surrounded by a circular shape in the side walls, the combustion flame generated by the combustion flame generating portion of the combustion path And flows into the combustion chamber. The combustion flame that has flowed into the combustion chamber rotates around the injection port along the side wall of the combustion chamber . By rotating the combustion flame inside the combustion chamber, the flow of the combustion flame can be made uniform, and the annular combustion flame can be injected from the injection port at a substantially uniform speed and pressure. Inside the combustion chamber, a plurality of rectifying plates are provided around the injection port so as to bend the flow of the rotating combustion flame in a direction toward the injection port. The flow of the rotating combustion flame can be changed to the injection direction by the current plate, and the speed of the injection direction component of the annular combustion flame can be increased. Moreover, the rotational direction component of the annular combustion flame can be suppressed, the raw material can be prevented from rotating along the annular combustion flame, and a high quality powder can be obtained.
本発明に係る粉末製造装置は、前記燃焼室の壁部との間に円環状の噴射口を形成するセンターコーンを有しており、前記センターコーンには、センターコーンの中心を貫通して原料を前記噴射口の中央に形成された供給口へ供給する供給路が設けられている。したがって、センターコーンの外面に沿って、燃焼室の内部から噴射口にスムーズに燃焼炎を導くことができる。また、供給路を通すことにより、円環状の燃焼炎の内側に、原料を容易に供給することができる。
本発明に係る粉末製造装置では、前記センターコーンの外周面は、前記供給口に向かって外径が細くなるように形成され、前記整流板の前記センターコーン側の端縁、及び前記壁部の端縁は、前記センターコーンの外周面に沿って傾斜していることが好ましい。
The powder manufacturing apparatus according to the present invention has a center cone that forms an annular injection port between the wall portion of the combustion chamber, and the center cone passes through the center of the center cone and is a raw material Is supplied to a supply port formed at the center of the injection port. Therefore, the combustion flame can be smoothly guided from the inside of the combustion chamber to the injection port along the outer surface of the center cone. Moreover, a raw material can be easily supplied inside an annular | circular shaped combustion flame by letting a supply path pass.
In the powder manufacturing apparatus according to the present invention, an outer peripheral surface of the center cone is formed so that an outer diameter thereof becomes narrower toward the supply port, an end edge of the rectifying plate on the center cone side, and the wall portion The edge is preferably inclined along the outer peripheral surface of the center cone.
本発明に係る粉末製造装置では、前記燃焼室の壁部の内面と前記センターコーンの外周面に、サーマルバリアコーティングが施されていることが好ましい。サーマルバリアコーティングにより、燃焼室の外部に熱が逃げにくくなるため、燃焼室の内部での燃焼効率を高めることができる。また、燃焼室やその周辺、センターコーンの耐久性を高めることができる。 In the powder manufacturing apparatus according to the present invention, it is preferable that a thermal barrier coating is applied to the inner surface of the wall portion of the combustion chamber and the outer peripheral surface of the center cone. The thermal barrier coating makes it difficult for heat to escape to the outside of the combustion chamber, so that the combustion efficiency inside the combustion chamber can be increased. Moreover, durability of a combustion chamber, its periphery, and a center cone can be improved.
本発明に係る粉末製造装置では、前記センターコーンを冷却するように、前記センターコーンに冷却部が設けられていることが好ましい。冷却部を設けることにより、センターコーンの耐久性を高めることができる。 In the powder manufacturing apparatus according to the present invention, it is preferable that a cooling unit is provided in the center cone so as to cool the center cone . By providing the cooling unit , the durability of the center cone can be increased.
本発明に係る粉末製造装置で、前記燃焼炎発生部は、液体燃料を気化する気化器を有し、前記燃焼路は、前記気化器で気化された燃料に点火する点火手段を有していることが好ましい。この場合、燃焼炎発生部で発生する燃焼炎の燃焼効率を高めることができる。また、燃料として灯油を用いることができ、燃料コストを低減することができる。これにより、安価に粉末を得ることができる。 In the powder manufacturing apparatus according to the present invention, the combustion flame generator includes a vaporizer that vaporizes liquid fuel, and the combustion path includes ignition means that ignites the fuel vaporized by the vaporizer . It is preferable. In this case, the combustion efficiency of the combustion flame generated at the combustion flame generator can be increased. Further, kerosene can be used as the fuel, and the fuel cost can be reduced. Thereby, powder can be obtained at low cost.
以下、図面に基づき、本発明の実施の形態について説明する。
図１および図２は、本発明の実施の形態の粉末製造装置を示している。
図１および図２に示すように、粉末製造装置１０は、燃焼器本体１１とセンターコーン１２とを有している。
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
1 and 2 show a powder production apparatus according to an embodiment of the present invention.
As shown in FIGS. 1 and 2, the powder manufacturing apparatus 10 includes a combustor body 11 and a center cone 12.
図３には、参考例としての粉末製造装置１０を溶射装置として使用した例が示されている。粉末製造装置１０を溶射装置として使用する場合、図３に示すように、原料として金属粉末３１を使用し、その金属粉末３１に対して高温の円環状の燃焼炎３０を噴射することにより、その金属粉末３１を溶融または軟化することができる。その溶融または軟化した金属粉末（溶射粉末３２）を物体表面に噴射することにより、物体表面に金属被膜を形成することができる。 FIG. 3 shows an example in which a powder production apparatus 10 as a reference example is used as a thermal spraying apparatus. When using the powder manufacturing apparatus 10 as a thermal spraying apparatus, as shown in FIG. 3, by using a metal powder 31 as a raw material and injecting a high-temperature annular combustion flame 30 onto the metal powder 31, The metal powder 31 can be melted or softened. By spraying the molten or softened metal powder (sprayed powder 32) onto the object surface, a metal film can be formed on the object surface.
なお、図４に示すように、参考例としての粉末製造装置１０は、燃焼室２１が噴射口１３から周囲に向かって放射状に伸びる複数の燃焼路２４ａを有し、燃焼炎発生部２４が各燃焼路２４ａに対応して複数設けられ、それぞれ対応する燃焼路２４ａを通って噴射口１３に向かって燃焼炎を発生するよう、各燃焼路２４ａの上流側に点火手段２４ｃ等が配置されている。この場合、各燃焼路２４ａから噴射口１３に向かう複数の燃焼炎を、噴射口１３の位置で衝突させることにより、燃焼炎の流れを均一に整えて、ほぼ均等な速度および圧力で、噴射口１３から円環状の燃焼炎３０を噴射することができる。 As shown in FIG. 4, the powder manufacturing apparatus 10 as a reference example includes a plurality of combustion paths 24 a in which the combustion chamber 21 extends radially from the injection port 13 toward the periphery. A plurality of ignition means 24c and the like are arranged on the upstream side of each combustion path 24a so as to generate a combustion flame through the corresponding combustion path 24a and toward the injection port 13 respectively . . In this case, a plurality of combustion flames directed from the respective combustion paths 24a to the injection port 13 are collided at the position of the injection port 13, so that the flow of the combustion flame is made uniform, and the injection port is made at a substantially uniform speed and pressure. An annular combustion flame 30 can be injected from 13.
また、図５に示すように、参考例としての粉末製造装置１０は、燃焼室２１が、側壁２１ａで円形状に囲まれた円盤状の空間から周囲に向かって放射状に伸びる複数の燃焼路２４ａを有し、燃焼炎発生部２４が各燃焼路２４ａに対応して複数設けられ、それぞれ対応する燃焼路２４ａを通って噴射口１３に向かって燃焼炎を発生するよう、各燃焼路２４ａの上流側に点火手段２４ｃやスタビライザ２４ｄが配置されている。この場合、各燃焼路２４ａから噴射口１３に向かう複数の燃焼炎を、噴射口１３の位置で衝突させることにより、燃焼炎の流れを均一に整えて、ほぼ均等な速度および圧力で、噴射口１３から円環状の燃焼炎３０を噴射することができる。また、各燃焼炎発生部２４で発生した燃焼炎が、燃焼室２１の内部で噴射口１３の周囲を回転したときでも、整流板２５により、回転する燃焼炎の流れを噴射方向に変えることができ、品質の良い粉末を得ることができる。 As shown in FIG. 5, the powder manufacturing apparatus 10 as a reference example includes a plurality of combustion paths 24a in which the combustion chamber 21 extends radially from the disk-shaped space surrounded by the side wall 21a in a circular shape. A plurality of combustion flame generators 24 are provided corresponding to each combustion path 24a, and upstream of each combustion path 24a so as to generate a combustion flame through the corresponding combustion path 24a toward the injection port 13 respectively. An ignition means 24c and a stabilizer 24d are arranged on the side . In this case, a plurality of combustion flames directed from the respective combustion paths 24a to the injection port 13 are collided at the position of the injection port 13, so that the flow of the combustion flame is made uniform, and the injection port is made at a substantially uniform speed and pressure. An annular combustion flame 30 can be injected from 13. Further, even when the combustion flame generated in each combustion flame generator 24 rotates around the injection port 13 inside the combustion chamber 21, the flow of the rotating combustion flame can be changed to the injection direction by the rectifying plate 25. And high quality powder can be obtained.
Claims (8)
前記燃焼炎発生部で発生した燃焼炎が燃焼路を通じて流入する燃焼室と、
前記燃焼室の中央部に配置され、前記燃焼室の壁部との間に円環状の噴射口を形成するセンターコーンと、
前記センターコーンの中心を貫通して設けられ、原料を前記噴射口の中央に形成された供給口へ供給する供給路と、
前記燃焼室内へ前記噴射口の周囲に間隔をあけて設けられた複数の整流板と、
を備え、
前記燃焼路は、前記燃焼炎発生部で発生した前記燃焼炎が前記燃焼室の側壁に沿って回転するように噴出させ、
前記整流板は、前記噴射口の周囲を回転する前記燃焼炎の流れを前記噴射口に向かう方向に曲げることで、回転する前記燃焼炎の回転方向成分を抑える、粉末製造装置。 A plurality of combustion flame generating parts for generating a combustion flame;
A combustion chamber into which the combustion flame generated in the combustion flame generating section flows through a combustion path ;
A center cone disposed at the center of the combustion chamber and forming an annular injection port with the wall of the combustion chamber;
A supply path that is provided through the center of the center cone and supplies the raw material to a supply port formed in the center of the injection port ;
A plurality of baffle plates provided at intervals around the injection port in the combustion chamber;
With
The combustion path is ejected so that the combustion flame generated at the combustion flame generator rotates along the side wall of the combustion chamber,
The said baffle plate is a powder manufacturing apparatus which suppresses the rotation direction component of the said combustion flame rotating by bending the flow of the said combustion flame rotating around the said injection nozzle in the direction which goes to the said injection nozzle .
前記燃焼路は、前記気化器で気化された燃料に点火する点火手段を有している、請求項１〜請求項５の何れか１項に記載の粉末製造装置。 The combustion flame generator has a vaporizer that vaporizes liquid fuel ,
The said combustion path is a powder manufacturing apparatus of any one of Claims 1-5 which has an ignition means to ignite the fuel vaporized by the said vaporizer | carburetor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2015089950A JP6298794B2 (en) | 2015-04-27 | 2015-04-27 | Powder production equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2015089950A JP6298794B2 (en) | 2015-04-27 | 2015-04-27 | Powder production equipment |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JP2016204718A JP2016204718A (en) | 2016-12-08 |
| JP2016204718A5 true JP2016204718A5 (en) | 2017-03-23 |
| JP6298794B2 JP6298794B2 (en) | 2018-03-20 |
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| EP3680045B1 (en) * | 2017-09-07 | 2024-03-27 | Hard Industry Yugen Kaisha | Device and method for manfacturing metal powder |
| JP6937019B2 (en) * | 2017-11-14 | 2021-09-22 | ハード工業有限会社 | Powder production equipment |
| CN111741826B (en) * | 2018-02-19 | 2023-08-18 | 哈都工业有限会社 | Metal powder manufacturing device and metal powder manufacturing method |
| CN108941591A (en) * | 2018-08-24 | 2018-12-07 | 连平县昕隆实业有限公司 | A kind of water atomizing nozzle |
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| JPH04126533A (en) * | 1990-09-19 | 1992-04-27 | Nkk Corp | Method and apparatus for producing inorganic sphered particles |
| JPH1081903A (en) * | 1996-09-02 | 1998-03-31 | Yamashita Kinya | Production of fine metallic particles and combustion device for producing apparatus of fine metallic particles |
| JP4698127B2 (en) * | 2003-03-26 | 2011-06-08 | 中外炉工業株式会社 | Powder production equipment |
| US20140202286A1 (en) * | 2011-05-18 | 2014-07-24 | Hard Industry Yugen Kaisha | Metal powder production method and metal powder production device |
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