JPS591997Y2 - Discharge valve for hopper - Google Patents
Discharge valve for hopperInfo
- Publication number
- JPS591997Y2 JPS591997Y2 JP18446379U JP18446379U JPS591997Y2 JP S591997 Y2 JPS591997 Y2 JP S591997Y2 JP 18446379 U JP18446379 U JP 18446379U JP 18446379 U JP18446379 U JP 18446379U JP S591997 Y2 JPS591997 Y2 JP S591997Y2
- Authority
- JP
- Japan
- Prior art keywords
- hopper
- valve
- recess
- valve body
- discharge valve
- 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
Description
【考案の詳細な説明】
この考案はホッパの下部に設けたスライド式あるいはス
イング式排出弁の改良に係るものである。[Detailed description of the invention] This invention relates to an improvement of a slide type or swing type discharge valve provided at the bottom of a hopper.
従来より、圧力雰囲気下にある場合、ない場合を問わず
固体（粉体、塊）を貯蔵するホッパの下部にスライド式
あるいはスイング式等の排出弁を設けたものは、弁閉鎖
行程の終時に固体がホッパ側シートと弁体の弁面との間
に紛れ込みその状態で弁体を閉鎖（締め切る）するため
、固体とシートまたは弁体の弁面との間に摩擦がおこり
損耗が烈しい等の欠点があった。Conventionally, hoppers that store solids (powder, lumps), whether in a pressure atmosphere or not, have a slide or swing type discharge valve installed at the bottom of the hopper. Solids get mixed in between the hopper side seat and the valve face of the valve element and close the valve element in that state, causing friction between the solid and the seat or the valve face of the valve element, resulting in severe wear and tear. There was a drawback.
この考案は前記欠点を解消するためになしたものであり
、簡単な構造により、ホッパ側シートと弁体の弁面との
間に紛れ込んだ固体を噴出空気によって吹き飛ばすよう
にしたホッパ用排出弁を提供しようとするものである。This invention was made to eliminate the above-mentioned drawbacks, and it is a hopper discharge valve that has a simple structure and uses jetted air to blow away solids that have gotten mixed in between the hopper side seat and the valve surface of the valve body. This is what we are trying to provide.
この考案の具体的実施例がスライド式排出弁について添
付図面を参照にしながら以下に説明される。A specific embodiment of this invention will be described below with reference to the accompanying drawings regarding a slide type discharge valve.
第１図はこの考案の要部断面図を示し、第２図は第１図
Ｉ−Ｉ線部分断面図を示すものであり、両図における構
成部材とそれぞれの部材間の相関々係を詳述する。Figure 1 shows a cross-sectional view of the main parts of this invention, and Figure 2 shows a partial cross-sectional view taken along the line I--I in Figure 1. Describe.
１はホッパで下端のホッパ開口の周面のホッパシート部
２にはホッパ側シート３（シート部材）が設けられてい
る。Reference numeral 1 denotes a hopper, and a hopper-side seat 3 (sheet member) is provided on a hopper seat portion 2 on the circumferential surface of the hopper opening at the lower end.
４はホッパ開口およびホッパシート３を囲繞するように
ホッパシート部２の下面に形成した凹所である。A recess 4 is formed on the lower surface of the hopper seat portion 2 so as to surround the hopper opening and the hopper seat 3.
また５は前記凹所４に連通する空気（気体）吹き込み孔
である。Further, 5 is an air (gas) blowing hole communicating with the recess 4 .
６は弁体で、この弁体６には土手７を形成した弁面８と
前端および後端には後述する搬送体の制限片および弁箱
に設けたストッパに係合する係片９および案内片１０と
がそれぞれ形成されている。Reference numeral 6 denotes a valve body, and the valve body 6 has a valve face 8 with a bank 7 formed thereon, and at its front and rear ends are engagement pieces 9 and guides that engage with a restriction piece of a conveying body and a stopper provided on the valve box, which will be described later. A piece 10 is formed respectively.
また前記弁体６の両側には傾斜面１１を有する楔片１２
が形成されている。Further, wedge pieces 12 having inclined surfaces 11 are provided on both sides of the valve body 6.
is formed.
なお符号１３は後述する搬送体とこの弁体６との間に張
設されるばねの端部取っ竹片を表わす。Note that the reference numeral 13 represents a bamboo end piece of a spring that is stretched between the conveying body and the valve body 6, which will be described later.
１４は搬送体で、この搬送体１４には図示しないシリン
ダ、クランクなどの往復運動機構により作動される弁棒
５の端部を取り付け、しかも前述のばねの他端部を取り
付けると共に前記弁体の係片９と係合するように形成さ
れた制限片１６が設けられている。Reference numeral 14 denotes a conveying body, to which the end of the valve rod 5 operated by a reciprocating mechanism such as a cylinder or crank (not shown) is attached, and the other end of the above-mentioned spring is attached as well. A limiting piece 16 is provided which is formed to engage with the engaging piece 9.
また搬送体１４には後述する弁箱に設けられた案内レー
ル上を摺動する摺動面１７と傾斜面１８を有する楔片１
９とが形成されている。Further, the carrier 14 has a wedge piece 1 having a sliding surface 17 and an inclined surface 18 that slide on a guide rail provided on the valve box, which will be described later.
9 is formed.
２０はばねで、このばね２０は前記弁体６の端部取付片
１３と搬送体１４の制限片１６間に張設され、弁体６と
搬送体１４とをそれぞれの楔片１２および１９に形成し
た傾斜面１１および１８を滑合状態に保持する機能を付
与されている。Reference numeral 20 denotes a spring, and this spring 20 is stretched between the end attachment piece 13 of the valve body 6 and the limiting piece 16 of the conveying body 14, and holds the valve body 6 and the conveying body 14 to the respective wedge pieces 12 and 19. A function is provided to maintain the formed inclined surfaces 11 and 18 in a sliding state.
２１は弁箱で、この弁箱２１内には前記搬送体１４の摺
動面１７を案内する案内レール２２と前述の弁体６の案
内片１０を衝止し、この案内片１０の昇降を案内するス
トッパ２３とが設けられている。21 is a valve box, and inside this valve box 21, a guide rail 22 that guides the sliding surface 17 of the carrier 14 and a guide piece 10 of the aforementioned valve body 6 are blocked, and this guide piece 10 is moved up and down. A guiding stopper 23 is provided.
第３図は上述のホッパシート部２に形成した凹所４と弁
体６の弁面８に形成した土手７との閉鎖行程の経時にお
ける位置関係を示す拡大断面図であり、同図から明らか
なように、ホッパ開口を囲繞するようにホッパシート部
２に設けられた凹所４の巾および深さは、これに対向す
る位置に形成されている弁面８上の上手７が前記凹所４
内に自由に嵌挿できる程度の大きさに形成されており、
しかも土手７の外側壁面７′と凹所４の外側壁面４′の
隙間δ□より、土手７の内側壁面７″と凹所４の内側壁
面４″の隙間δ２の方が大であるように両者間の位置関
係が設定されている。FIG. 3 is an enlarged sectional view showing the positional relationship between the recess 4 formed in the hopper seat portion 2 and the bank 7 formed in the valve face 8 of the valve body 6 over time during the closing process, which is clear from the figure. As such, the width and depth of the recess 4 provided in the hopper seat portion 2 so as to surround the hopper opening are such that the upper portion 7 on the valve surface 8 formed at a position opposite to the recess 4 is located in the recess. 4
It is formed in a size that can be inserted freely inside the
Moreover, the gap δ2 between the inner wall surface 7'' of the bank 7 and the inner wall surface 4'' of the recess 4 is larger than the gap δ□ between the outer wall surface 7' of the bank 7 and the outer wall surface 4' of the recess 4. The positional relationship between the two is set.
この考案は前記構成により以下の作用を生ずる。This invention produces the following effects due to the above configuration.
図示しない往復運動機構により弁棒１５を介して搬送体
１４と一体的に滑合している弁体６は、ホッパ開口を開
放状態に維持している時は、案内レール２２上の所定位
置に退行している。The valve body 6, which is integrally slid into contact with the carrier 14 via the valve stem 15 by a reciprocating mechanism (not shown), is in a predetermined position on the guide rail 22 when the hopper opening is maintained in the open state. It is regressing.
この状態における弁体６をホッパ開口を閉鎖するように
作動させるためには、先ず、弁棒１５を介して、搬送体
１４と滑合状態を維持している弁体６の案内片１０がス
トッパ２３に衝止するまで、搬送体１４を移動する。In order to operate the valve body 6 in this state to close the hopper opening, first, the guide piece 10 of the valve body 6, which is maintained in a sliding state with the conveying body 14, is moved to the stopper via the valve stem 15. The carrier 14 is moved until it stops at 23.
この衝止状態から更に搬送体１４を移動させると、第４
図の作用説明図から明らかなように、搬送体１４はばね
２０を圧縮し、弁体６との滑合関係を維持しながら図の
左方に移動する。When the conveyor 14 is further moved from this stopped state, the fourth
As is clear from the action explanatory diagram in the figure, the carrier 14 compresses the spring 20 and moves to the left in the figure while maintaining a sliding relationship with the valve body 6.
この結果搬送体１４は弁体６の係片９と搬送体１４の制
限片１６間の離間中Ｘだけ移動し、これに伴なって弁体
６は案内片１０をストッパ２３に衝止された状態で前記
搬送体１４の傾斜面１８のために高さＹだけ垂直に上昇
することになる。As a result, the conveying body 14 moves by X during the separation between the engaging piece 9 of the valve body 6 and the restricting piece 16 of the conveying body 14, and accordingly, the valve body 6 has the guide piece 10 blocked by the stopper 23. In this state, the conveyor 14 vertically rises by a height Y due to the inclined surface 18.
この作用により弁体６の弁面８とホッパシート部２のシ
ート３間の間隙ａが埋まり結局ホッパ開口が閉鎖される
ことになる。Due to this action, the gap a between the valve surface 8 of the valve body 6 and the seat 3 of the hopper seat portion 2 is filled, and the hopper opening is eventually closed.
この考案は、上述の弁体６が上昇を開始する時、または
遅くとも上昇が完了する直前までにホッパシート部２の
凹所４内の空気吹き込み孔５より、ホッパ１内の圧力Ｐ
１より高い圧力Ｐ２を有する気体（空気）をこの凹所４
内に吹き込む点に特徴を有するものであり、前記の気体
は、第３図で明瞭に示されるように、土手７により左右
方向に即ち、土手７の内、外に偏向され、ホッパシート
部２と弁体６の弁面８の間に紛れ込んだ異物（固体）を
ホッパ１の内側に確実に吹きとばすことができる。In this invention, when the above-mentioned valve body 6 starts to rise, or at the latest just before the rise is completed, the pressure inside the hopper 1 is
Gas (air) having a pressure P2 higher than 1 is transferred to this recess 4.
As clearly shown in FIG. 3, the gas is deflected from side to side by the bank 7, that is, to the inside and outside of the bank 7, and the gas is blown into the hopper seat section 2. It is possible to reliably blow away foreign matter (solid) that has gotten into the space between the valve surface 8 of the valve body 6 and the valve surface 8 of the valve body 6 into the inside of the hopper 1.
またホッパシーＩ・部２の凹所４と弁面８の土手７との
位置関係は両者間の左右間隙δ１〈δ２なる関係を有す
るので、前記凹所４内に吹き込まれた気体の弁箱内への
噴出量はホッパ１内への噴出量に比べて極めて少量であ
る。In addition, the positional relationship between the recess 4 of the hopper seam I section 2 and the bank 7 of the valve face 8 is such that there is a left-right gap δ1 < δ2 between the two, so that the gas blown into the recess 4 flows into the valve box. The amount of water ejected into the hopper 1 is extremely small compared to the amount ejected into the hopper 1.
この考案は上述の構成により以下の効果を生ずる。This invention produces the following effects with the above-mentioned configuration.
弁体の弁面８がホッパ開口を閉鎖する閉鎖行程の経時に
、ホッパ内圧力Ｐ１より高い圧力Ｐ２を有する気体をホ
ッパシート部２と前記弁面８間に吹き込むので、両部材
間に介在する固体はホッパ内に吹き戻され、前記両部材
間には流下する固体が存在しないので、ホッパ３と弁面
８が直接、接触することによりホッパ開口の閉鎖が確実
に行われ、またシート３が固体を咬みこむことによる前
記各部材の損耗を生じさせないものである。During the closing stroke in which the valve surface 8 of the valve body closes the hopper opening, gas having a pressure P2 higher than the hopper internal pressure P1 is blown between the hopper seat portion 2 and the valve surface 8, so that the gas is interposed between both members. Since the solids are blown back into the hopper and there is no solid material flowing down between the two members, the hopper opening is reliably closed by direct contact between the hopper 3 and the valve surface 8, and the seat 3 is This prevents the aforementioned members from being worn out due to solid objects being caught in them.
また、凹所４内に吹き込まれた気体の弁箱内への漏洩が
少なく、従って少量の気体吹き込みで大なる固体（異物
）排除が行なえる。Further, the leakage of gas blown into the recess 4 into the valve box is small, so that a large amount of solid (foreign matter) can be removed by blowing a small amount of gas.
この考案の他の実施例がスイング式排出弁について第５
図に示されている。Another embodiment of this invention is the fifth example of a swing type discharge valve.
As shown in the figure.
この実施例の場合は、スイング腕１４′に設けた弁体６
′の弁面８′に土手７′を設け、ホッパ１側には、ホッ
パシート部２′にホッパ開口を囲繞するように凹所４′
を設け、弁面８′の閉鎖行程の経時における前記凹所４
′と土手７′との位置関係は、先の実施例に於ける凹所
４と土手７との位置関係と同一構成とされており、従っ
て空気吹き込み孔５′より吹き込まれる気体は先の実施
例と同様に、ホッパシート部２′またはホッパシート３
′と弁面８′間の固体を排除する機能が付与されている
。In this embodiment, the valve body 6 provided on the swing arm 14'
A bank 7' is provided on the valve surface 8' of the hopper 1, and a recess 4' is provided on the hopper seat portion 2' so as to surround the hopper opening.
and the recess 4 during the closing stroke of the valve face 8'.
The positional relationship between the recess 4 and the bank 7' is the same as the positional relationship between the recess 4 and the bank 7 in the previous embodiment. Similarly to the example, hopper seat part 2' or hopper seat 3
' and the valve surface 8'.
第１図はこの考案の要部断面図、第２図は第１図Ｉ−Ｉ
線部分断面図、第３図は要部拡大断面図、第４図は断面
作用説明図、第５図は他の実施例を表わす要部断面図で
ある。
１・・・・・・ホッパ、２・・・・・・ホッパシート部
、４・・・・・・凹所、５・・・・・・空気吹き込み孔
、６・・・・・・弁体、７・・・・・・土手、８・・・
・・・弁面。Figure 1 is a sectional view of the main part of this invention, Figure 2 is a cross-sectional view of the main part of this invention, and Figure 2 is a cross-sectional view of the main part of this invention
FIG. 3 is an enlarged sectional view of the main part, FIG. 4 is an explanatory diagram of the cross-sectional effect, and FIG. 5 is a sectional view of the main part showing another embodiment. 1...Hopper, 2...Hopper seat part, 4...Recess, 5...Air blow hole, 6...Valve body , 7...bank, 8...
... Valve surface.
Claims (1)
させて前記ホッパ開口を閉鎖するようにした排出弁にお
いて、前記ホッパ開口を囲繞するような凹所をホッパシ
ート部の下面に形成すると共に、この凹所に空気吹き込
み孔を設け、さらに前記弁体の弁面には、ホッパ開口の
閉鎖時に前記凹所に対向する位置にしかも凹所に吹き込
まれた空気の噴出方向と噴出量を制御するような土手と
を設けたことを特徴とするホッパ用排出弁。In a discharge valve configured to close the hopper opening by bringing a valve surface of a valve body into contact with a hopper seat provided with a hopper opening, a recess surrounding the hopper opening is formed on the lower surface of the hopper seat. At the same time, an air blowing hole is provided in this recess, and an air blowing hole is provided on the valve surface of the valve body at a position opposite to the recess when the hopper opening is closed, and the direction and amount of air blown into the recess are indicated. A discharge valve for a hopper, characterized in that a bank is provided for controlling the discharge valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18446379U JPS591997Y2 (en) | 1979-12-28 | 1979-12-28 | Discharge valve for hopper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18446379U JPS591997Y2 (en) | 1979-12-28 | 1979-12-28 | Discharge valve for hopper |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS56100397U JPS56100397U (en) | 1981-08-07 |
| JPS591997Y2 true JPS591997Y2 (en) | 1984-01-19 |
Family
ID=29694686
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18446379U Expired JPS591997Y2 (en) | 1979-12-28 | 1979-12-28 | Discharge valve for hopper |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS591997Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0539117Y2 (en) * | 1988-12-22 | 1993-10-04 |
-
1979
- 1979-12-28 JP JP18446379U patent/JPS591997Y2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS56100397U (en) | 1981-08-07 |
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