JPH0571755U - Dust collector - Google Patents
Dust collectorInfo
- Publication number
- JPH0571755U JPH0571755U JP9658791U JP9658791U JPH0571755U JP H0571755 U JPH0571755 U JP H0571755U JP 9658791 U JP9658791 U JP 9658791U JP 9658791 U JP9658791 U JP 9658791U JP H0571755 U JPH0571755 U JP H0571755U
- Authority
- JP
- Japan
- Prior art keywords
- filter paper
- dust
- dust collector
- gas passage
- ring
- 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
Links
Landscapes
- Sampling And Sample Adjustment (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
(57)【要約】
【目的】 高圧下においても、濾紙を健全に支持し、し
かもシール性を良好にた持つことにより、安全でダスト
捕集失敗のないダスト捕集器とする。
【構成】 一対の円錐状筒体の大径端部同志を脱着可能
に嵌合連結してガス通路を形成し、該筒体の嵌合連結部
のガス通路全断面を塞いでダストを捕集する濾紙を設
け、該濾紙の反ダスト捕集面側に濾紙支持部材を設け、
更に、前記濾紙のダスト捕集面側の周縁部と前記枠体の
嵌合部のガス通路側との間にリング状のシール部材を設
けたダスト捕集器において、前記濾紙支持部材を硬質多
孔板とし、更に、前記リング状のシール部材を、内周面
に複数の通気孔を有する横断面が中空の軟質チューブと
する。
(57) [Summary] [Purpose] A dust collector that is safe and does not fail to collect dust by supporting the filter paper soundly even under high pressure and having a good sealing property. A gas passage is formed by detachably fitting and connecting the large-diameter end portions of a pair of conical cylinders, and the entire cross section of the gas passage of the fitting connection portion of the cylinders is blocked to collect dust. And a filter paper support member on the side opposite to the dust collecting surface of the filter paper,
Further, in a dust collector provided with a ring-shaped seal member between the dust collecting surface side peripheral portion of the filter paper and the gas passage side of the fitting portion of the frame body, the filter paper supporting member is made of a hard porous material. The plate is a plate, and the ring-shaped seal member is a soft tube having a hollow cross section having a plurality of ventilation holes on its inner peripheral surface.
Description
【０００１】[0001]
本考案は、排ガス中のダスト濃度を測定するためのダスト捕集器に関するもの である。 The present invention relates to a dust collector for measuring the dust concentration in exhaust gas.
【０００２】[0002]
高炉、焼結機、固定燃料を使用するボイラー等から排出される排ガス中にはダ ストが含まれる。 この排ガス中に含まれているダストを捕集して、その量を測定し、所定量以下 に維持するように集塵能力向上等の処理する必要がある。 The exhaust gas emitted from blast furnaces, sintering machines, boilers that use fixed fuel, etc. contains dust. It is necessary to collect the dust contained in the exhaust gas, measure the amount of dust, and perform treatments such as improving the dust collection capability so as to maintain the amount below a predetermined amount.
【０００３】 この排ガス中のダストを捕集するための捕集器として、例えば、実開平２−１ ５０５４７号公報に提案があり、これを図３を参照して説明する。 円錐台状筒体のダスト捕集器枠体１と枠体２の大径端部同志を袋ナット４で連 接固定して含塵ガス通路１ａを形成し、該枠体１の大径端部の内部の含塵ガス通 路１ａを直径方向に塞いで含塵ガス中のダストを捕集する濾紙５を装着し、また 、ダスト捕集用濾紙５の反ダスト捕集側（矢印Ｓ方向からダストが流入）に周囲 に金属製のリング９を有する濾紙支持用金網６を設け、更に、ダスト捕集用濾紙 ５が枠体２側に倒れるのを防止すると共に前記枠体１と２の連接部をシールする ために、該濾紙５の円周縁部に当接するリング状のテフロンパッキン７、抑えリ ング８及びリング状のシリコンパッキン３を配設し、更に上記濾紙支持用金網６ と枠体１ａの間にリング状のパッキン９ａを介設した構造となっている。A collector for collecting the dust in the exhaust gas is proposed in, for example, Japanese Utility Model Laid-Open No. 2-1 50547, which will be described with reference to FIG. The large diameter end portions of the frustoconical cylindrical dust collector frame 1 and the frame body 2 are connected and fixed by a cap nut 4 to form a dust-containing gas passage 1a. A filter paper 5 for collecting dust in the dust-containing gas is installed by closing the dust-containing gas passage 1a inside the portion in the diametrical direction, and the dust-collecting filter paper 5 is provided on the side opposite to the dust collecting side (arrow S direction). (The dust inflows from the inside) is provided with a wire mesh 6 for supporting the filter paper having a metal ring 9 in the periphery thereof, and further, the filter paper 5 for collecting the dust is prevented from falling down to the frame body 2 side, and at the same time the frame bodies 1 and 2 are In order to seal the connecting portion, a ring-shaped Teflon packing 7, a retaining ring 8 and a ring-shaped silicon packing 3 which come into contact with the circumferential edge of the filter paper 5 are provided, and further the filter paper supporting wire mesh 6 and the frame. A ring-shaped packing 9a is provided between the bodies 1a.
【０００４】[0004]
例えば、前記高炉のガス清浄工程における高炉ガス（ＢＦＧ）本管内では内圧 が２kg／cm2 程度あり、しかも、その内圧が急激に変動する。 このように高圧で、圧力変動のあるガス中のダストを捕集する場合においては 、前記実開平２−１５０５４７号公報は下記の問題点を有し、使用できないもの であった。 つまり、前記のようにダスト捕集濾紙５を支持するために金網６を使用してお り、この金網６は前記高炉ガスの圧力に耐えるために金網６の線径を太くして強 度を向上しなければならない。しかし、この金網６の線径を太くすると網目が大 きくなり、この網目部分における濾紙５の支持が不充分となって、その部分の該 濾紙５が高炉ガスにより押し破られ、ダスト捕集が不可能となるものであった。 更に、枠体１と枠体２の連接部でのガス洩れ防止と濾紙５の倒れ防止のために リング状のシリコンおよびテフロン製の板パッキン３、７を使用しているために 、高圧下においては該パッキン３、７が押圧されて薄くなりシールが不完全とな ってガス洩れが発生する等の問題を有するものであった。For example, in the blast furnace gas (BFG) main pipe in the blast furnace gas cleaning process, the internal pressure is about 2 kg / cm 2 , and the internal pressure fluctuates rapidly. As described above, in the case of collecting dust in a gas having a high pressure and a pressure fluctuation, the above Japanese Utility Model Laid-Open No. 2-150547 has the following problems and cannot be used. That is, as described above, the wire net 6 is used to support the dust collecting filter paper 5, and the wire net 6 has a large wire diameter to withstand the pressure of the blast furnace gas and has a high strength. Must improve. However, if the wire diameter of this wire mesh 6 is made thicker, the mesh becomes larger and the support of the filter paper 5 in this mesh portion becomes insufficient, so that the filter paper 5 at that portion is crushed by the blast furnace gas and dust is collected. It was impossible. Further, since ring-shaped silicon and Teflon plate packings 3 and 7 are used to prevent gas leakage at the connecting portion of the frame 1 and the frame 2 and to prevent the filter paper 5 from collapsing, under high pressure. Had a problem in that the packings 3 and 7 were pressed to become thin and the seal was incomplete, resulting in gas leakage.
【０００５】 本考案は、上記従来の問題点を解消するものであって、高圧下においても濾紙 を健全に支持し、しかも、シール性を良好に保つことにより、安全でダスト捕集 失敗のないダスト捕集器を提供することを目的とするものである。The present invention solves the above-mentioned problems of the prior art. It supports the filter paper soundly even under high pressure and keeps good sealing property, so that it is safe and does not fail to collect dust. It is intended to provide a dust collector.
【０００６】[0006]
本考案は上記目的を達成するためになされたものであり、 （１）一対の円錐上筒体の大径端部同志を脱着可能に嵌合してガス通路を形成し 、該記筒体の嵌合連結部のガス通路全断面を塞いでダストを捕集する濾紙を設け 、該濾紙の反ダスト捕集面側に濾紙のダスト捕集面側の周縁部と前記枠体の嵌合 部のガス通路側との間にシール部材を設けたダスト捕集器において、前記炉支持 部材を硬質多孔板としたものであること、 （２）前記（１）において、前記シール部を、内周面に複数の開穴を有するリン グ状の軟質ゴムホースとしたものである。 The present invention has been made to achieve the above object. (1) A large-diameter end portion of a pair of conical upper cylinders is detachably fitted to each other to form a gas passage. A filter paper is provided to cover the entire cross section of the gas passage of the fitting connection part to collect dust, and the filter paper has a dust collecting surface side opposite to the dust collecting surface side peripheral portion of the filter paper and the fitting portion of the frame body. In a dust collector having a seal member provided between the gas passage side and the furnace support member, a hard perforated plate is used. (2) In (1), the seal portion is an inner peripheral surface. It is a ring-shaped soft rubber hose having a plurality of openings on its inside.
【０００７】[0007]
本考案の作用を図１を参照して説明する。 手段１はダストを捕集する濾紙２３の支持部材として、気孔径が１０〜３０μ ｍの細孔を有するポーラス煉瓦、鉄及びステンレス等の硬質多孔板２４としたこ とにより、濾紙２３を確実に支持することが可能となり、排ガスのダスト捕集時 に急激な圧力変動が生じても前記濾紙２３を破損することなく健全な状態に維持 して、ダスト捕集失敗を無くすものである。 The operation of the present invention will be described with reference to FIG. The means 1 is a support member of the filter paper 23 for collecting dust, and the filter paper 23 is surely secured by using a porous porous brick 24 having pores with a pore diameter of 10 to 30 μm, a hard porous plate 24 such as iron and stainless steel. The filter paper 23 can be supported and the filter paper 23 can be maintained in a sound state without being damaged even if a rapid pressure change occurs during dust collection of the exhaust gas, and dust collection failure is eliminated.
【０００８】 また本考案はダスト捕集器１５の枠体２０の大径側の開口周縁部と濾紙２３の 反硬質多孔板側に接触して内周側に複数の開孔２５ａを設けたリング状の軟質ゴ ムホース２５を配設することにより、枠体２０方向からダスト捕集器１５内に排 ガスが流入すると軟質ゴムホース２５に設けた開穴２５ａから該排ガスが流入し て、その圧力により該軟質ゴムホース２５の反開穴側が押されることにより、前 記ダスト捕集器１５の枠体２０の開口周縁の隅部と濾紙２３に圧着してガス洩れ を確実に防止すると共に、濾紙２３の周縁部を硬質多孔板２４に圧着して該濾紙 ２５の倒れを防止するものである。Further, the present invention is a ring having a plurality of apertures 25a provided on the inner peripheral side thereof in contact with the large-diameter side opening peripheral edge of the frame body 20 of the dust collector 15 and the anti-hard porous plate side of the filter paper 23. By disposing the soft rubber hose 25 in the shape of a tube, when exhaust gas flows into the dust collector 15 from the direction of the frame 20, the exhaust gas flows in through the opening 25a provided in the soft rubber hose 25, and the pressure causes the exhaust gas to flow. When the anti-open hole side of the soft rubber hose 25 is pushed, the corners of the opening edge of the frame 20 of the dust collector 15 and the filter paper 23 are pressed to securely prevent gas leakage, and at the same time, to prevent the filter paper 23 from leaking. The peripheral edge portion is pressed against the hard porous plate 24 to prevent the filter paper 25 from collapsing.
【０００９】[0009]
以下本考案の一実施例を図１、２を参照して詳細に説明する。 図１は本例のダスト捕集器の側断面図、図２はダスト捕集装置の全体図であり 、図２中、１０は排ガス本管１１に挿入したガス抜取管、１２はガス抜取管１０ に設けた３方弁、１３はガス抜取管１０で抜取った排ガスを再び排ガス本管１１ に戻すバイパス配管、１５はガス抜取管１０で抜取った排ガスを導管１４を通し て導入し、この排ガス中のダスト捕集するダスト捕集器、１６は流量調整用バル ブ１７を有する接続器、１８は接続器１６を介してダスト捕集器１５に連結した 排出管１９に設けた圧力計である。 Hereinafter, an embodiment of the present invention will be described in detail with reference to FIGS. FIG. 1 is a side sectional view of the dust collector of this example, and FIG. 2 is an overall view of the dust collector. In FIG. 2, 10 is a gas extraction pipe inserted into an exhaust gas main pipe 11, and 12 is a gas extraction pipe. 10 is a three-way valve, 13 is a bypass pipe for returning the exhaust gas extracted by the gas extracting pipe 10 to the exhaust gas main pipe 11 again, and 15 is the exhaust gas extracted by the gas extracting pipe 10 and is introduced through the conduit 14. A dust collector for collecting dust in the exhaust gas, 16 a connector having a flow rate adjusting valve 17, and 18 a pressure gauge provided on a discharge pipe 19 connected to the dust collector 15 via the connector 16. Is.
【００１０】 更に、前記ダスト捕集器１５について、図１を参照して詳細に説明する。 図１中、２０、２１は円錐台状のダスト捕集器枠体、２２は枠体２０、２１の 大径端部同志を嵌合して連結するためのクイックジョイント、２３は枠体２１の 大径端部内部のガス通路２９を直径方向に塞いで装着したダスト捕集用濾紙、２ ４は該濾紙２３と同様に枠体２１の大径端部内部のガス通路２９を直径方向に塞 いで装着し、１０〜３０μｍの気孔を有する硬質多孔質で、周囲に金属製のリン グ３０を設けた円板状のポーラス煉瓦板、２５は枠体２０の大径端部とダスト捕 集用濾紙２３のダスト捕集側面の周縁部との間に挿入した中空状でかつリング状 のシリコンゴムホースであり、その内周側に１mmの開孔２５ａを等間隔に複数設 ける。 ２６は枠体２１の大径端部とポーラス煉瓦板２４の周縁部との間に挿入したリ ング状のシール部材であり、前記シリコンゴムホース２５と同様に内周側に１mm 程度の開孔２６ａを等間隔に複数設けた中空状でかつリング状のゴムホースでも 良く、又は従来と同様に平板状のパッキンでも良い。 ２７、２８は枠体２０、２１の小径端部にも設けたネジ部である。Further, the dust collector 15 will be described in detail with reference to FIG. In FIG. 1, 20 and 21 are frustoconical dust collector frame bodies, 22 is a quick joint for fitting and connecting the large-diameter end portions of the frame bodies 20 and 21, and 23 is a frame body 21. Like the filter paper 23, the dust collecting filter paper 24, which is installed by closing the gas passage 29 inside the large-diameter end portion in the diametrical direction, closes the gas passage 29 inside the large-diameter end portion of the frame body 21 in the diametrical direction. It is a hard porous body with 10 to 30 μm pores and a disk-shaped porous brick plate around which a metal ring 30 is provided, and 25 is a large-diameter end of the frame body 20 and dust collection It is a hollow and ring-shaped silicon rubber hose inserted between the filter paper 23 and the peripheral edge of the dust collecting side surface, and a plurality of 1 mm openings 25a are provided at equal intervals on the inner peripheral side thereof. Reference numeral 26 is a ring-shaped sealing member inserted between the large-diameter end of the frame body 21 and the peripheral edge of the porous brick plate 24. As with the silicone rubber hose 25, an opening 26a of about 1 mm is formed on the inner peripheral side. It may be a hollow and ring-shaped rubber hose provided with a plurality of holes at equal intervals, or may be a flat packing as in the conventional case. Reference numerals 27 and 28 denote screw portions provided also on the small-diameter end portions of the frame bodies 20 and 21.
【００１１】 次に、排ガス本管１１内を流れる排ガス中のダストをダスト捕集器１５で採取 する作業手順を説明する。 通常は３方弁１２によりガス抜取管１０とバイパス配管１３を連通状態とし、 一方、ガス抜取管１０と導管１４は非連通状態として、該ガス抜取管１０の閉塞 を防止している。 図１のようにダスト捕集用濾紙２３、ポーラス煉瓦板２４、シリコンゴムホー ス２５を装着したダスト捕集器１５の枠体２０のネジ部２７を導管１４に連結す る。更に、枠体２１のネジ部２８と排出管１９を接続器１６に接続する。 斯くして、３方弁１２を切替えてガス抜取管１０と導管１４を連通状態にし、 ガス抜取管１０とバイパス配管１３を非連通状態にした後、圧力計１８の指示値 が所定値になるように流量調整用バルブ１７の開度を調整する。Next, a work procedure for collecting dust in the exhaust gas flowing in the exhaust gas main pipe 11 with the dust collector 15 will be described. Normally, the gas extraction pipe 10 and the bypass pipe 13 are made to communicate with each other by the three-way valve 12, while the gas extraction pipe 10 and the conduit 14 are made not to communicate with each other to prevent the gas extraction pipe 10 from being blocked. As shown in FIG. 1, the screw portion 27 of the frame body 20 of the dust collector 15 equipped with the dust collecting filter paper 23, the porous brick plate 24, and the silicon rubber hose 25 is connected to the conduit 14. Further, the screw portion 28 of the frame body 21 and the discharge pipe 19 are connected to the connector 16. Thus, the three-way valve 12 is switched to bring the gas extraction pipe 10 and the conduit 14 into communication with each other, and the gas extraction pipe 10 and the bypass pipe 13 are brought into non-communication with each other, and then the indicated value of the pressure gauge 18 becomes a predetermined value. Thus, the opening degree of the flow rate adjusting valve 17 is adjusted.
【００１２】 このようにして、排ガス本管１１内を流れる排ガスをダスト捕集器１５に導入 して、排ガス中のダストを該ダスト捕集器１５内のダスト捕集用濾紙２３で捕集 する。 これを所定時間継続した後、前記３方弁１２を切替えてガス抜取管１０と導管 １４を非連通状態にし、ガス抜取管１０とバイパス配管１３を連通状態にし、前 記ダスト捕集器１５を接続器１６及び導管１４より取外す。 更に、ダスト捕集器１５のクイックジョイント２２を回転し、枠体２０と２１ の連結を解除して、ダストを捕集したダスト捕集用濾紙２３を取出すものである 。In this way, the exhaust gas flowing in the exhaust gas main pipe 11 is introduced into the dust collector 15, and the dust in the exhaust gas is collected by the dust collecting filter paper 23 in the dust collector 15. . After continuing this for a predetermined time, the three-way valve 12 is switched to make the gas extraction pipe 10 and the conduit 14 in a non-communication state, and the gas extraction pipe 10 and the bypass pipe 13 are made to communicate with each other, and the dust collector 15 is removed. Remove from the connector 16 and the conduit 14. Further, the quick joint 22 of the dust collector 15 is rotated to release the connection between the frames 20 and 21, and the dust collecting filter paper 23 in which the dust is collected is taken out.
【００１３】[0013]
以上説明したように、濾紙支持部材を多数の細孔を有するポーラス煉瓦、鉄及 びステンレス等の硬質多孔板としたことにより、ダスト捕集器内に導入する排ガ スが高圧で、しかも、圧力変化が発生しても、確実に濾紙を支持することができ るので、濾紙の破れを防止して、濾紙の破れによるダスト捕集失敗を皆無にする ことが可能となった。 また、リング状の軟質ゴムホースによりガスのシール性を高めて、ガス洩れを 防止すると共に濾紙の倒れを防止することが可能となり、安定したダスト捕集が できる等の効果を奏するものである。 As described above, the filter paper support member is made of a hard porous plate such as porous brick, iron, and stainless steel having a large number of pores, so that the exhaust gas introduced into the dust collector has a high pressure, and Even if a pressure change occurs, the filter paper can be reliably supported, so that it is possible to prevent the filter paper from breaking and to prevent dust collection failure due to the filter paper breaking. Further, the ring-shaped soft rubber hose enhances the gas sealing property to prevent gas leakage and prevent the filter paper from collapsing, which brings about effects such as stable dust collection.
【図１】本考案の一実施例を示すダスト捕集器の側断面
図。FIG. 1 is a side sectional view of a dust collector showing an embodiment of the present invention.
【図２】本考案のダスト捕集装置の全体図を示す。FIG. 2 shows an overall view of the dust collecting apparatus of the present invention.
【図３】本考案の従来のダスト捕集器の側断面図上面図
を示す。FIG. 3 shows a side cross-sectional top view of a conventional dust collector of the present invention.
１０：ガス抜取管 １３：バイパス管 １５：ダスト捕集器 １６：流量調整用バルブ １８：圧力計 ２０，２１：ダスト捕集器枠体 ２２：クイックジョイント ２３：ダスト捕集用濾紙 ２４：ポーラス煉瓦板 ２５：シリコンゴムホース ２６：リング状シール部材 ３０：金属リング 10: Gas extraction pipe 13: Bypass pipe 15: Dust collector 16: Flow rate adjusting valve 18: Pressure gauge 20, 21: Dust collector frame 22: Quick joint 23: Dust collecting filter paper 24: Porous brick Plate 25: Silicon rubber hose 26: Ring-shaped sealing member 30: Metal ring
フロントページの続き (51)Int.Cl.5 識別記号 庁内整理番号 ＦＩ 技術表示箇所 Ｇ０１Ｎ 15/02 Ｚ 2107−2Ｊ Continuation of the front page (51) Int.Cl. 5 Identification code Office reference number FI technical display location G01N 15/02 Z 2107-2J
Claims (2)
可能に嵌合連結してガス通路を形成し、該筒体の嵌合連
結部のガス通路全断面を塞いでダストを捕集する濾紙を
設け、該濾紙の半ダスト捕集面側に濾紙支持部材を設
け、更に、前記濾紙のダスト捕集面側の周縁部と前記枠
体の嵌合部のガス通路側との間にシール部材を設けたダ
スト捕集器において、前記濾紙支持部材を硬質多孔板と
したことを特徴とするダスト捕集器。1. A pair of conical cylinders having a large diameter end are detachably fitted and connected together to form a gas passage, and the entire cross section of the gas passage of the fitting and connection portion of the cylinder is closed to remove dust. A filter paper for collecting is provided, and a filter paper support member is provided on the half dust collecting surface side of the filter paper, and further, the peripheral edge portion of the filter paper on the dust collecting surface side and the gas passage side of the fitting portion of the frame body are provided. A dust collector having a seal member provided therebetween, wherein the filter paper support member is a hard porous plate.
内周面に複数の開穴を有するリング状の軟質ゴムホース
としたことを特徴とするダスト捕集器。2. The seal member according to claim 1,
A dust collector characterized by being a ring-shaped soft rubber hose having a plurality of openings on its inner peripheral surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9658791U JPH0571755U (en) | 1991-11-25 | 1991-11-25 | Dust collector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9658791U JPH0571755U (en) | 1991-11-25 | 1991-11-25 | Dust collector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0571755U true JPH0571755U (en) | 1993-09-28 |
Family
ID=14169060
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9658791U Pending JPH0571755U (en) | 1991-11-25 | 1991-11-25 | Dust collector |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0571755U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101368401B1 (en) * | 2013-09-02 | 2014-02-28 | 국방과학연구소 | Aerosol-collecting device |
| JP2015036658A (en) * | 2013-08-14 | 2015-02-23 | 大陽日酸株式会社 | Sampling method and sampling device of metal in sample gas |
| WO2018048292A1 (en) * | 2016-09-12 | 2018-03-15 | 연세대학교 산학협력단 | Portable bio-aerosol collection device and analysis method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5411409A (en) * | 1977-06-29 | 1979-01-27 | Matsushita Electric Ind Co Ltd | Rotor position detector for commutatorless motor |
| JPS5423915U (en) * | 1977-07-20 | 1979-02-16 | ||
| JPH0318779U (en) * | 1989-07-01 | 1991-02-25 | ||
| JPH03188929A (en) * | 1989-11-13 | 1991-08-16 | Norton Co | Supported silicon nitride filter membrane and manufacture thereof |
-
1991
- 1991-11-25 JP JP9658791U patent/JPH0571755U/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5411409A (en) * | 1977-06-29 | 1979-01-27 | Matsushita Electric Ind Co Ltd | Rotor position detector for commutatorless motor |
| JPS5423915U (en) * | 1977-07-20 | 1979-02-16 | ||
| JPH0318779U (en) * | 1989-07-01 | 1991-02-25 | ||
| JPH03188929A (en) * | 1989-11-13 | 1991-08-16 | Norton Co | Supported silicon nitride filter membrane and manufacture thereof |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2015036658A (en) * | 2013-08-14 | 2015-02-23 | 大陽日酸株式会社 | Sampling method and sampling device of metal in sample gas |
| KR101368401B1 (en) * | 2013-09-02 | 2014-02-28 | 국방과학연구소 | Aerosol-collecting device |
| WO2018048292A1 (en) * | 2016-09-12 | 2018-03-15 | 연세대학교 산학협력단 | Portable bio-aerosol collection device and analysis method |
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