JPS6038581Y2 - Powder dropping device - Google Patents
Powder dropping deviceInfo
- Publication number
- JPS6038581Y2 JPS6038581Y2 JP10123781U JP10123781U JPS6038581Y2 JP S6038581 Y2 JPS6038581 Y2 JP S6038581Y2 JP 10123781 U JP10123781 U JP 10123781U JP 10123781 U JP10123781 U JP 10123781U JP S6038581 Y2 JPS6038581 Y2 JP S6038581Y2
- Authority
- JP
- Japan
- Prior art keywords
- powder
- hood
- chute
- dropping device
- cage
- 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
- Chutes (AREA)
- Auxiliary Methods And Devices For Loading And Unloading (AREA)
Description
【考案の詳細な説明】
この考案は粉体を安定して投下する装置に係り、特に粉
体のフラッシング現象(微細粉等が空気を巻き込んで急
激に流動拡散する現象をいう)を抑制する投下装置に関
する。[Detailed description of the invention] This invention relates to a device for stably dropping powder, and in particular, a dropping device that suppresses the flashing phenomenon of powder (a phenomenon in which fine powder, etc. rapidly flows and spreads by drawing in air). Regarding equipment.
従来の最も機能的な投下装置の一例を第1図に示す。An example of the most functional conventional dropping device is shown in FIG.
図においてコンベヤ1の落下口2の外側に吸塵口を兼ね
た上部ケース3を設ける。In the figure, an upper case 3 which also serves as a dust suction port is provided outside the drop port 2 of the conveyor 1.
落下口2の下には複数個のテーパ短管4を可撓条片5に
より連結した屈曲伸縮自在な案内シュート6を吊り下げ
る。Beneath the drop opening 2, a bendable and extensible guide chute 6 in which a plurality of tapered short pipes 4 are connected by a flexible strip 5 is suspended.
上部ケース3の下面には案内シュート6を気密に包む屈
曲伸縮自在なシュート外管7を吊下げる。A bendable and expandable chute outer tube 7 that airtightly encloses the guide chute 6 is suspended from the lower surface of the upper case 3.
シュート外管下端には、下部ケース8を介して、スカー
ト9を吊下げる。A skirt 9 is suspended from the lower end of the chute outer tube via a lower case 8.
下部ケース8には、巻取機10に巻掛けたロープ11の
端部を結着し、スカート9は、下部ケース8に揺動自在
に吊下げた側板12を可撓性を有するように、気密布1
3を以って拡張、収縮が自在に連結する。The end of a rope 11 wound around a winder 10 is tied to the lower case 8, and the skirt 9 has a flexible side plate 12 that is swingably suspended from the lower case 8. Airtight cloth 1
3 allows expansion and contraction to be freely connected.
コンベヤ1の上には集塵機14と吸引ファン15とを据
え、吸塵管16を介して上部ケース3と集塵機14とを
連結し、吸気管17を介して集塵機14と吸引ファン1
5とを連結する。A dust collector 14 and a suction fan 15 are installed on top of the conveyor 1, and the upper case 3 and the dust collector 14 are connected through a dust suction pipe 16, and the dust collector 14 and the suction fan 1 are connected through an intake pipe 17.
Connect with 5.
集塵機14の下部にはロータリーバルブ18を設け、こ
のロータリーバルブ18とコンベヤ1とを回収管19を
介して連結する。A rotary valve 18 is provided at the bottom of the dust collector 14, and the rotary valve 18 and the conveyor 1 are connected via a collection pipe 19.
上記構造により、投下粉体の落下点の空間をスカート9
により包み、スカート9内に特上がる粉塵を、シュート
外管7と上部ケース2を通して集塵機14に吸入して粉
体と空気とを分離し、粉体をコンベヤ1内に戻す。With the above structure, the space at the falling point of the dropped powder is covered by the skirt 9.
The dust that rises inside the skirt 9 is sucked into the dust collector 14 through the chute outer tube 7 and the upper case 2 to separate the powder from air, and the powder is returned to the conveyor 1.
スカート9は巻取機10を作動しロープ11により自由
に昇降するのである。The skirt 9 is moved up and down freely by the rope 11 by operating the winder 10.
しかし、このスカート9のような気密フードでは、フラ
ッシング性の著しいセメント等の粉体の場合は、スカー
ト9の下縁を通って奔流の如く、粉体を含む気流が流出
して粉塵をまきちらす欠点があった。However, in the case of an airtight hood such as this skirt 9, in the case of powder such as cement that has a significant flushing property, the air flow containing the powder flows out like a torrent through the lower edge of the skirt 9, scattering dust. There were drawbacks.
この考案は、シュート下方のフード内に截頭逆円錐状の
ケージを設けて、高速に落下する粉体の衝撃を緩慢に受
は止め、フラッシング現象を抑制し、粉体の流出拡散を
防止しようとするものである。The idea is to install a truncated inverted conical cage inside the hood at the bottom of the chute to slowly absorb the impact of powder falling at high speed, suppress the flashing phenomenon, and prevent the powder from flowing out and spreading. That is.
この考案の一実施例を第2図により説明する。An embodiment of this invention will be explained with reference to FIG.
第2図において、ロープ11により吊り下けられた下部
ケース19をシュート外管7に連結して設け、下部ケー
ス19の中に案内シュート6の下に臨む短管20を装着
する。In FIG. 2, a lower case 19 suspended by a rope 11 is connected to the outer chute tube 7, and a short tube 20 facing below the guide chute 6 is installed in the lower case 19.
下部ケース19の下面に、同心にフード枠21を固着し
、このフード枠21の下部には同心多重円筒状にフード
外筒22とフード内筒23とを装着する。A hood frame 21 is fixed concentrically to the lower surface of the lower case 19, and a hood outer cylinder 22 and a hood inner cylinder 23 are attached to the lower part of the hood frame 21 in the form of concentric multiple cylinders.
フード内筒23の内部には、截頭逆円錐状をなし、スリ
ット状の開口24aを有するケージ24を、放射方向の
垂直な支持板25を介して同心に設ける。Inside the hood inner cylinder 23, a cage 24 having a truncated inverted conical shape and a slit-like opening 24a is provided concentrically via a support plate 25 that is perpendicular to the radial direction.
内外フード筒22.23の上部には、フード内筒23の
内側から、フード外筒22とフード内筒23との間、並
びに、フード外筒22の外部に連通ずる吸塵用の吸気管
26を設ける。At the upper part of the inner and outer hood cylinders 22 and 23, there is provided an intake pipe 26 for collecting dust that communicates from the inside of the inner hood cylinder 23 to between the outer hood cylinder 22 and the inner hood cylinder 23 and to the outside of the outer hood cylinder 22. establish.
前記フード外筒22とフード内筒23とケージ24とに
は、それぞれ据を拡張したスカート27.28.29を
装着する。Extended skirts 27, 28, and 29 are attached to the hood outer cylinder 22, hood inner cylinder 23, and cage 24, respectively.
それぞれのスカート27.28.29は、截頭円錐形の
幌幕27 a、 28 a、 29 aの大径縁部
に可撓弾性材よりなる縁取輪27b、28b。Each of the skirts 27, 28, 29 has a frustoconical canopy 27a, 28a, 29a with a hem ring 27b, 28b made of a flexible elastic material at the large diameter edge.
29bを有し、小径縁部をフード外筒22、フード内筒
23、ケージ24の下部と気密に接続している。29b, and the small diameter edge is airtightly connected to the lower part of the hood outer cylinder 22, the hood inner cylinder 23, and the cage 24.
前記吸気管26のフード外筒22外への開口部には、吸
塵時に吸気量を調節するための開閉タンパ−30を設け
る。An opening/closing tamper 30 is provided at the opening of the intake pipe 26 to the outside of the hood outer cylinder 22 to adjust the intake air amount during dust intake.
フード内筒23内には粉体のレベル計31を突出して設
けるのである。A powder level meter 31 is provided in a protruding manner within the hood inner cylinder 23.
次に前記構成の作用を説明する。Next, the operation of the above configuration will be explained.
フード枠21とフードM22,23とスカート27.2
8とは、シュート6の下方の投下空間を外部から多重に
遮断して、投下粉体の流出を制止する。Hood frame 21, hood M22, 23 and skirt 27.2
8 is to block the dropping space below the chute 6 from the outside in multiple ways to prevent the dropped powder from flowing out.
レベル計31は、フード内筒23内に堆積した粉体の上
限レベルを検知し、ロープ11の巻取り信号を発信する
。The level meter 31 detects the upper limit level of powder accumulated in the hood inner cylinder 23 and sends a signal for winding the rope 11.
ケージ24は截頭逆円錐状になっていることにより粉体
の下降流を絞り、粉体の落下エネルギーを緩慢に吸収す
る。The cage 24 has a truncated inverted conical shape, thereby restricting the downward flow of the powder and slowly absorbing the falling energy of the powder.
またスリット状の開口24aから粉体を少量宛フード内
筒23側へ流出させて粉体が全く停滞しないようにしつ
つ、フード内筒23内に粉体を堆積させ粉体の噴出を抑
制する。Further, a small amount of powder is allowed to flow out from the slit-shaped opening 24a to the hood inner cylinder 23 side so that the powder does not stagnate at all, and the powder is accumulated in the hood inner cylinder 23 to suppress the powder from blowing out.
以上説明したようにこの考案は、シュートラ包むシュー
ト外管の下に接続したフード筒の中に截頭逆円錐形のケ
ージを設けたことにより、シュート・を降下する粉体流
を一定眼内に抑制するから、スカートから流出する粉体
流に勢力がなく粉体流の噴出問題を解消することができ
たものである。As explained above, this device has a truncated inverted conical cage inside the hood tube connected to the bottom of the chute outer tube that envelops the chute, which allows the powder flow descending through the chute to be kept within the eye at a constant level. Because it is suppressed, the powder flow flowing out from the skirt has no force, and the problem of powder flow spouting can be solved.
第1図は従来の粉体の投下装置の一例を示す正面図、第
2図はこの考案の一実施例を示す正面図である。
6:案内シュート、7:シュート外管、22:フード外
筒、23:フード内筒、24:ケージ、24a:ケージ
の開口。FIG. 1 is a front view showing an example of a conventional powder dropping device, and FIG. 2 is a front view showing an embodiment of this invention. 6: Guide chute, 7: Outer chute tube, 22: Outer hood tube, 23: Inner hood tube, 24: Cage, 24a: Cage opening.
Claims (1)
して二重管構造にした粉体の投下装置において、上記シ
ュート外管の下にフード筒を多重に設け、内側のフード
筒の内部に案内シュートの下に臨む截頭逆円錐状のケー
ジを設けたことを特徴とする粉体の投下装置。 2 ケージにスリット状開口を設けたことを特徴とする
実用新案登録請求の範囲第1項記載の粉体の投下装置。[Scope of Claim for Utility Model Registration] 1. In a powder discharging device having a double pipe structure with an airtight chute outer tube arranged outside the powder discharging chute, multiple hood cylinders are provided under the chute outer tube. A powder dropping device characterized in that a truncated inverted conical cage facing below a guide chute is provided inside an inner hood cylinder. 2. The powder dropping device according to claim 1, wherein the cage is provided with a slit-like opening.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10123781U JPS6038581Y2 (en) | 1981-07-09 | 1981-07-09 | Powder dropping device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10123781U JPS6038581Y2 (en) | 1981-07-09 | 1981-07-09 | Powder dropping device |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS587711U JPS587711U (en) | 1983-01-19 |
JPS6038581Y2 true JPS6038581Y2 (en) | 1985-11-18 |
Family
ID=29895904
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP10123781U Expired JPS6038581Y2 (en) | 1981-07-09 | 1981-07-09 | Powder dropping device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6038581Y2 (en) |
-
1981
- 1981-07-09 JP JP10123781U patent/JPS6038581Y2/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
JPS587711U (en) | 1983-01-19 |
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