JPS5921885Y2 - solid gas separator - Google Patents
solid gas separatorInfo
- Publication number
- JPS5921885Y2 JPS5921885Y2 JP12818079U JP12818079U JPS5921885Y2 JP S5921885 Y2 JPS5921885 Y2 JP S5921885Y2 JP 12818079 U JP12818079 U JP 12818079U JP 12818079 U JP12818079 U JP 12818079U JP S5921885 Y2 JPS5921885 Y2 JP S5921885Y2
- Authority
- JP
- Japan
- Prior art keywords
- powder
- hopper
- sampling
- gas
- gas separator
- 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.)
- Expired
Links
Landscapes
- Sampling And Sample Adjustment (AREA)
- Cyclones (AREA)
Description
【考案の詳細な説明】
この考案は、例えば粉末を金型に充填成形後焼結する粉
末冶金等において、粉末の製造ロフト毎にサンプリング
を行なう際の固気分離装置に関するものである。[Detailed Description of the Invention] This invention relates to a solid-gas separator for sampling each powder production loft in, for example, powder metallurgy in which powder is filled into a mold, molded, and then sintered.
従来、粉末を金型に充填して成形した後焼結するいわゆ
る粉末冶金技術では、粉末の製路ロット毎に変動する粉
末特性の把握が、品質管理上極めて重要な事項となって
いる。Conventionally, in the so-called powder metallurgy technology in which powder is filled into a mold, molded, and then sintered, it is extremely important for quality control to understand the powder characteristics, which vary from powder production lot to lot.
このために、粉末製造ロット毎に少量のサンプリングを
行ない、粉末特性を調べ、一方先行して試作品を造り、
成形品の特性を確認すると共に、試作品のテ゛−夕を量
産時の製造条件にフィードバックする所謂先行試験が慣
習的に広〈実施されている。To this end, we sampled a small amount for each powder production lot, investigated the powder characteristics, and created a prototype in advance.
In addition to confirming the characteristics of molded products, so-called advance tests are customarily and widely carried out to feed back the properties of prototypes to the manufacturing conditions for mass production.
上記粉末特性を調べる試料粉末の採取には、スプーンに
よるサンプリングが一般的であるが、製造ロフトが大き
くなり、これに伴なって試料粉末の量も増大してくると
サンプリング作業及びそれに要する時間も大幅に増大し
てくる。Sampling with a spoon is commonly used to collect sample powder to examine the powder characteristics mentioned above, but as the manufacturing loft becomes larger and the amount of sample powder increases accordingly, the sampling work and the time required for it also increase. It will increase significantly.
特に核分裂性物質である、二酸化ウラン粉末や食品関係
の粉末は直接手で触れることができないものである。In particular, uranium dioxide powder, which is a fissile material, and food-related powder cannot be directly touched.
また、粉子径が数ミクロンで比重の重い粉末、例えばU
O2粉末などは微粒子のために安息角(水平な平面板上
に堆積した粉体の稜線が水平面となす角)が大きく、物
に付着しやすく、ブリッジが出来易い特性を有している
ために、第1図に示すような通常のサイクロン式の分離
器を使用して試料を採取しようとしても粉末がホッパー
1内に付着堆積してサンプリングの壜2には入らないこ
とが多い。In addition, powders with a powder diameter of several microns and a heavy specific gravity, such as U
Because O2 powder is a fine particle, it has a large angle of repose (the angle that the ridgeline of the powder deposited on a horizontal plane makes with the horizontal plane) and has the property of easily adhering to objects and forming bridges. Even if an attempt is made to collect a sample using an ordinary cyclone separator as shown in FIG. 1, the powder often accumulates in the hopper 1 and does not enter the sampling bottle 2.
このように、例え少量の粉末でも装置内に残るようなこ
とがあっては試料採取装置としては不適当で゛ある。Thus, if even a small amount of powder remains inside the device, it is inappropriate as a sample collection device.
この考案は、上述した事情に基づいてなされたものであ
り、固気分離(例えば粉末サンプリング)を行なう際に
、高能率で確実に気体中の固体を気体から分離採取でき
るようにした固気分離装置を提供するものである。This idea was made based on the above-mentioned circumstances, and is a solid-gas separation system that allows solids in gas to be separated and collected from gas with high efficiency and reliably when performing solid-gas separation (for example, powder sampling). It provides equipment.
以下、この考案を第2図に示す粉末サンプリングについ
て詳細に説明する。Hereinafter, this invention will be explained in detail with respect to powder sampling shown in FIG.
図において符号1はサイクロン効果を有するホッパー1
であり、このホッパー1の下方には試料粉末採取壜2が
着脱可能に装着される。In the figure, reference numeral 1 indicates a hopper 1 having a cyclone effect.
A sample powder collection bottle 2 is removably attached below the hopper 1.
上記ホッパー1の上方からは、壜2の拡張部2aまで吸
入口を延長した吸気管3が挿入されており、この吸気管
3の他端は減圧装置(図示せず)に連結されている。An intake pipe 3 whose suction port extends to the expanded portion 2a of the bottle 2 is inserted from above the hopper 1, and the other end of the intake pipe 3 is connected to a pressure reducing device (not shown).
また、上記ホッパー1の側方からは、粉末混合機(図示
せず)等から粉末を気体と共に導入する粉未導入部の供
給管4がホッパー1の接線方向に導入されるように開口
している。Further, from the side of the hopper 1, a supply pipe 4 in a part where powder is not introduced, through which powder is introduced together with gas from a powder mixer (not shown) or the like, is opened so as to be introduced in the tangential direction of the hopper 1. There is.
以上のように構成された固気分離装置は、まず減圧装置
にてホッパー1および採取壜2内が減圧されており、粉
末混合機から所定のサンプリング用粉末が供給管4を介
してホッパー1内に導入される。In the solid-gas separator configured as described above, the pressure inside the hopper 1 and the sampling bottle 2 are first reduced by the pressure reducing device, and a predetermined sampling powder is fed from the powder mixer into the hopper 1 via the supply pipe 4. will be introduced in
このときサンプリング用粉末はホッパー1内を回転され
て採取壜2の下方に移動し、徐々に流速が弱まり、該粉
末は壜2の底部に蓄積し、清浄な気体は吸気管3から外
部に排気される。At this time, the sampling powder is rotated in the hopper 1 and moved below the sampling bottle 2, and the flow rate gradually weakens, the powder accumulates at the bottom of the bottle 2, and clean gas is exhausted to the outside from the intake pipe 3. be done.
従って採取壜2に捕集した粉末は、ホッパー1と採取壜
2との連結部を外し、蓋をしてそのま・持ち運び又は別
の場所に移すことができる。Therefore, the powder collected in the collection bottle 2 can be removed from the connection between the hopper 1 and the collection bottle 2, covered, and carried as is, or transferred to another location.
なお、この考案による粉末分離装置は、平均粒径約lμ
のUO2粉末についての実験結果から第3図に示すよう
な割合で成形されたときが最も好ましいサイクロン効果
が得られた。In addition, the powder separation device according to this invention has an average particle size of about lμ
From the experimental results for the UO2 powder, it was found that the most preferable cyclone effect was obtained when the powder was molded at the ratio shown in FIG.
すなわちホッパー1の高さHlは、円筒部1aを100
としたとき逆円錐体部1bを150〜200とし、その
ときの円筒部1aの直径d1は150、逆円錐体部1b
の最小口径d2を120とする。That is, the height Hl of the hopper 1 is 100
Then, the inverted conical part 1b is 150 to 200 mm, the diameter d1 of the cylindrical part 1a is 150, and the inverted conical part 1b is 150 to 200 mm.
The minimum diameter d2 of is 120.
またホッパー1に挿入される吸気管3および粉末導入部
の供給管4の直径d3は50とする。Further, the diameter d3 of the suction pipe 3 and the supply pipe 4 of the powder introduction section inserted into the hopper 1 is 50 mm.
上記吸気管3の吸入口の長さlは円筒部1aを100と
したときホッパー1の上面より300〜350が挿入さ
れるように構成される。The length l of the suction port of the suction pipe 3 is configured such that 300 to 350 mm is inserted from the upper surface of the hopper 1, assuming that the cylindrical portion 1a is 100 mm.
このとき、減圧装置で30〜40cmHgに減圧される
のが好ましい。At this time, it is preferable to reduce the pressure to 30 to 40 cmHg using a pressure reducing device.
一方採取壜2は高さH2が300、直径d4は250が
最も好適であった。On the other hand, the most suitable height H2 of the collection bottle 2 was 300 mm and the diameter d4 was 250 mm.
なお、上記実施例においては吸気管3に減圧装置を連結
してサンプリングする場合を述べたが、粉末を供給管4
から加圧気体でホッパー1内に導入しても良い。In the above embodiment, a case was described in which a pressure reducing device was connected to the intake pipe 3 for sampling.
Alternatively, pressurized gas may be introduced into the hopper 1.
以上詳述したように、この考案によれば、ホッパ一部に
粉末の付着、堆積を嫌う難流動性、或いは付着性粉末の
試料採取に効果的であり、取扱いが容易で、かつ作業時
間が大幅に短縮できる。As detailed above, this invention is effective for sampling difficult-to-flow or adhesive powders that do not like powder adhesion or accumulation on a part of the hopper, is easy to handle, and reduces work time. It can be significantly shortened.
また、装置内に残留する粉末がなくなるために他の製造
ロットに変えたときでもサンプリング精度が向上する。Furthermore, since no powder remains in the device, sampling accuracy is improved even when changing to a different manufacturing lot.
さらに食品関係や核燃料物質のような、取扱い注意を要
する粉末にも、直接子で触れることなく、試料採取が出
来るなど実用上の効果を奏する。Furthermore, it has practical effects such as being able to collect samples from powders that require careful handling, such as food-related and nuclear fuel materials, without directly touching them.
第1図は従来の実施例を示す説明図、第2図はこの考案
による粉末分離装置を示す説明図、第3図はこの考案に
よる実施例の代表形状を示す説明図である。
1・・・・・・ホッパー、2・・・・・・採取壜、2a
・・・・・・拡張部、3・・・・・・吸気管、4・・・
・・・供給管。FIG. 1 is an explanatory diagram showing a conventional embodiment, FIG. 2 is an explanatory diagram showing a powder separation apparatus according to this invention, and FIG. 3 is an explanatory diagram showing a typical shape of an embodiment according to this invention. 1... Hopper, 2... Collection bottle, 2a
...Expansion part, 3...Intake pipe, 4...
...Supply pipe.
Claims (1)
を有するホッパーを採取壜に着脱可能に嵌着し、上記ホ
ッパーにホッパー上部から採取壜の拡張部まで延長する
排気管を設けると共に上記ホッパー内の接線方向に分散
した粉体を導入する供給管を開口させ、上記粉体を上記
ホッパー内に減圧あるいは加圧導入することを特徴とす
る固気分離装置。In an apparatus for separating powder and gas, a hopper having a cyclone effect is removably fitted into a collection bottle, and the hopper is provided with an exhaust pipe extending from the top of the hopper to an expanded part of the collection bottle, and a tangent line inside the hopper is provided. A solid-gas separator characterized in that a supply pipe for introducing powder dispersed in the direction is opened, and the powder is introduced into the hopper under reduced pressure or under pressure.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12818079U JPS5921885Y2 (en) | 1979-09-17 | 1979-09-17 | solid gas separator |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12818079U JPS5921885Y2 (en) | 1979-09-17 | 1979-09-17 | solid gas separator |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5644856U JPS5644856U (en) | 1981-04-22 |
JPS5921885Y2 true JPS5921885Y2 (en) | 1984-06-29 |
Family
ID=29360016
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP12818079U Expired JPS5921885Y2 (en) | 1979-09-17 | 1979-09-17 | solid gas separator |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5921885Y2 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5552001B2 (en) * | 2010-08-31 | 2014-07-16 | 大阪瓦斯株式会社 | Virus collection device and virus inspection system |
-
1979
- 1979-09-17 JP JP12818079U patent/JPS5921885Y2/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
JPS5644856U (en) | 1981-04-22 |
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