JPS58177828A - Fixed quantity feeder of powder - Google Patents
Fixed quantity feeder of powderInfo
- Publication number
- JPS58177828A JPS58177828A JP6085982A JP6085982A JPS58177828A JP S58177828 A JPS58177828 A JP S58177828A JP 6085982 A JP6085982 A JP 6085982A JP 6085982 A JP6085982 A JP 6085982A JP S58177828 A JPS58177828 A JP S58177828A
- Authority
- JP
- Japan
- Prior art keywords
- powder
- bottom plate
- screw feeder
- plate
- hopper
- 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
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G47/00—Article or material-handling devices associated with conveyors; Methods employing such devices
- B65G47/02—Devices for feeding articles or materials to conveyors
- B65G47/16—Devices for feeding articles or materials to conveyors for feeding materials in bulk
- B65G47/18—Arrangements or applications of hoppers or chutes
- B65G47/19—Arrangements or applications of hoppers or chutes having means for controlling material flow, e.g. to prevent overloading
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Filling Or Emptying Of Bunkers, Hoppers, And Tanks (AREA)
- Supply Of Fluid Materials To The Packaging Location (AREA)
- Chutes (AREA)
Abstract
Description
【発明の詳細な説明】
本発明は９いわゆるフラッシング現象を緩衝し粉体の定
量供給性を向上させつる粉体の定量供給装置に関するも
のである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an apparatus for quantitatively supplying vine powder, which buffers the so-called flushing phenomenon and improves the ability to quantitatively supply powder.
従来から粉体の定量供給装置は種々の方式が知られてい
るが、スフカニ−フィダーを用いる方式が一般的である
。Various types of devices for quantitatively feeding powder have been known, but a method using a suction feeder is common.
しかしながら、この方式で線、粉体ホッパー内で粉体の
崩壊現象がおこるのに伴なって粉一体が急激に大量に流
出する現象、いわゆるフラッシングがおこる。したがっ
て、一時に大量に粉体が供給されることになり、定量供
給性を大きく乱し操業に支障を来す因になっていた。However, in this method, as the powder collapses in the powder hopper, a phenomenon in which a large amount of powder is suddenly flowed out, so-called flushing, occurs. Therefore, a large amount of powder is supplied at one time, which greatly disturbs quantitative supply and causes problems in operation.
本発明者らは、装置個々について粉体の排出状況を観察
し、フラッシングの防止方法について検討をすると共に
、ブラッシングが発生し友場合の定量供給性の維持方法
について種々検討を重ねた紬釆、一般的に気体、液体な
ど流体でそれ自身が作るヘッド差が種々のコントロール
に利用されているように、粉体においても、粉体を気体
で流動化したり、振動を与えて流動化した場合あるいは
粉体自身がホッパー内で壊れる時に空気を含んで若干の
流動性を帯びた場合などにおいて、あたかも流体の場合
のようにヘッド差の機能を発揮することを認め、さらに
、ヘッド差を生じた場合、１１体の流入を止め得、スク
リューフィダーは運転を続行してもスクリューには過負
荷はかからすＫただ空転しているだけであることを認め
て本発明をなしたものである。すなわち１本発明は、粉
体ホツハー、スクリューフィダー、ベルトスケール。The present inventors observed the discharge status of powder from each device, studied ways to prevent flushing, and conducted various studies on how to maintain constant supply performance in the event that brushing occurs. In general, head differences created by fluids such as gases and liquids are used for various controls.In the same way, when powder is fluidized with gas, when it is fluidized with vibration, or When the powder itself breaks down in the hopper and contains air and becomes slightly fluid, it is recognized that the head difference function is exerted as if it were a fluid, and furthermore, when a head difference occurs. The present invention was made based on the recognition that even if the screw feeder continues to operate, the screw will not be overloaded and will simply idle. In other words, the present invention relates to a powder crusher, a screw feeder, and a belt scale.
及び、スクリューフィダーとベルトスケールとの間に設
けられ上板・底板・側板とよりな９スクリユーフイダー
の粉体排出部を上板に嵌挿し底板の長さとスクリューフ
ィダーの粉体排出部の先端と底板との間隔とを粉体排出
部の先端と底板の粉体供給部端縁とを結ぶ面とがなす角
を取扱う験体のほぼ休止角になるように設定して底板を
設は粉体排出部の先端と上板との間隔を粉体ヘッド差し
よ紗大自く設定して上板を設は上板に空気抜き全般は底
板Ｋｌ）体供給部を設けてなるクッションホッパーとよ
り愈る験体の定量供給装置である。Then, insert the powder discharge part of the 9-screw feeder, which is provided between the screw feeder and the belt scale and has a top plate, bottom plate, and side plate, into the top plate, and check the length of the bottom plate and the powder discharge part of the screw feeder. Set the bottom plate by setting the distance between the tip and the bottom plate so that it is approximately the rest angle of the test piece that deals with the angle formed by the surface connecting the tip of the powder discharge part and the edge of the powder supply part of the bottom plate. The distance between the tip of the powder discharge part and the upper plate is set to the size that the powder head is inserted, and the upper plate is set, and the upper plate is used for general air venting. This is a quantitative supply device for the extinguishing experience.
次に１本発明の一実施例を添付の図面に基づいて説明す
る。第１図は２本発明の一実施例を示す１１食１１．ｌ
ｌ２１１Ａは、クッションホッパ一部の説明用概念図、
第３図および第４図は、それぞれ本発明のクッションホ
ッパ一部の他の実施例を示ス概念図である。Next, one embodiment of the present invention will be described based on the accompanying drawings. FIG. 1 shows an embodiment of the present invention. l
l211A is an explanatory conceptual diagram of a part of the cushion hopper,
FIGS. 3 and 4 are conceptual diagrams showing other embodiments of a portion of the cushion hopper of the present invention, respectively.
図において、（１）は、たとえば、ステンレス内張りを
し九コニカル状粉体ホッパー、（２）は、たとえば、粉
体受入部と粉体排出部の間で適宜選択して異なる羽根ピ
ッチを有するスクリューフィダ＋、 （３）はベルトス
ケールであり、（４）はクッションホッパーである。ク
ッションホッパー＜４＞は。In the figure, (1) is, for example, a nine-conical powder hopper lined with stainless steel, and (2) is, for example, a screw having a suitably selected and different blade pitch between the powder receiving part and the powder discharging part. Fida+, (3) is a belt scale, and (4) is a cushion hopper. Cushion hopper <4>.
上板（６）、底板（７）、側板（８）とよりなり、スク
リューフィダー（２）の粉体排出部（５）とベルトスケ
ール（３）との間に、粉体排出部（５）を上板（４Ｉ）
を貫通させて内部へ挿入するように設けられていル、シ
カシて、クック３ンホツバ−（４）は、第２図に示すよ
うに、底板（７）の長さく１＞と、スクリューフィダー
（２）の粉体排出部（５）の先端（イ）と底板（７）と
の間隔（ｈｌ）とを、スクリューフィダー（２）の粉体
排出部（５）の先端（イ）とクッションホッパー（４）
の底板（７）の粉体供給部端縁（ロ）とを結ぶ面（ハ）
と底板（７）とがなす角（θ）が、取扱う粉体のほぼ休
止角（α）、好ましくは、θ−α±ダになるように設定
する。また、粉体排出部（５）の先端（イ）とクッショ
ンホッパー（４）の上板（６）との間隔（ｈ２）は、粉
体ヘッド差（Δｈ）よね余分に大きく間隔をとるように
設定して上板（６）を設け、少なくとも一箇の適宜大さ
の空気抜き（９）を上板の適宜位置に設ける。さらに、
底板（７）には、粉体供給部（１０）が設けられており
、粉体供給部（１０）は適宜長さで断面積を粉体の供給
量、性状、フラッシング状況等を考慮して可変タイプと
することが好ましい。It consists of a top plate (6), a bottom plate (7), and a side plate (8), and a powder discharge part (5) is located between the powder discharge part (5) of the screw feeder (2) and the belt scale (3). Top plate (4I)
As shown in FIG. ) is the distance (hl) between the tip (a) of the powder discharge part (5) of the screw feeder (2) and the bottom plate (7), and the distance (hl) between the tip (a) of the powder discharge part (5) of the screw feeder (2) and the cushion hopper ( 4)
The surface (c) that connects the powder supply section edge (b) of the bottom plate (7) of the
The angle (θ) formed by the base plate (7) and the bottom plate (7) is set so that it is approximately the rest angle (α) of the powder to be handled, preferably θ−α±da. Also, the distance (h2) between the tip (a) of the powder discharge part (5) and the upper plate (6) of the cushion hopper (4) should be larger than the powder head difference (Δh). A top plate (6) is provided, and at least one appropriately sized air vent (9) is provided at a suitable position on the top plate. moreover,
The bottom plate (7) is provided with a powder supply section (10), and the powder supply section (10) has an appropriate length and a cross-sectional area that takes into account the powder supply amount, properties, flushing conditions, etc. It is preferable to use a variable type.
なお、クッションホッパー（４）は、第３図に示すよう
に、前述の条件を満足するような底板長と粉体排出部（
５）の先端（イ）と上板（６）との間隔（ｈ３）をとっ
て底板（７）の両側に粉体供給部（１０） ｔ−設けた
ものを使用することも可能であり、ｔた。As shown in Figure 3, the cushion hopper (4) has a bottom plate length and a powder discharge part (
It is also possible to use a powder supply unit (10) provided on both sides of the bottom plate (7) with a distance (h3) between the tip (a) of 5) and the top plate (6), It was.
第４図に示すように、前述の条件を満足するようにして
底板（７）をたとえば円板状として全周から粉体を排出
供給されるようにしたものを使用することも可能である
。As shown in FIG. 4, it is also possible to use a bottom plate (7) that satisfies the above-mentioned conditions and has a disk shape, for example, so that powder can be discharged and supplied from the entire circumference.
本発明の粉体の定量供給装置は、このように構成されて
いるので、フラッシングが発生すると。Since the powder quantitative supply device of the present invention is configured as described above, when flushing occurs.
スクリューフィダー（２）からクッションタンク（４）
へ粉体が急激に流入しクッションタンク（４）が満たさ
れ粉体ヘッド差（△ｈ）が創り出される。すると、スク
リューフィダー（２）からさらに流入しようとする粉体
の流入を抑える働きをする。したがって、この間に、ク
ッションタンク（４）中にたまった粉体が徐々に排出供
給され通常のクッションホッパー（４）中の粉体状態に
もど抄通常通りの操業が続けられる。このようにして、
フラッシング発生時には、クッションホッパー（４）中
にｌｌが一時的に大量に流入するのでベルトスケール（
３）への粉体供給量も一時的には多少増加するがその程
度は少カく定量供給性が向上し維持されるものである。From the screw feeder (2) to the cushion tank (4)
Powder rapidly flows into the cushion tank (4), and a powder head difference (Δh) is created. This acts to suppress further inflow of powder from the screw feeder (2). Therefore, during this period, the powder accumulated in the cushion tank (4) is gradually discharged and supplied to the powder in the normal cushion hopper (4), and the Dosho machine continues to operate as usual. In this way,
When flushing occurs, a large amount of ll temporarily flows into the cushion hopper (4), causing the belt scale (
The amount of powder supplied to step 3) also temporarily increases to some extent, but the extent of the increase is small and constant supply is improved and maintained.
定量供給性の変動率（ｖ）をｖ−■１１．×１００（チ
）
２：平均（目標）供給量
σ：供給量の標準偏差
とした場合
従来法の変動率（Ｖｏ＞−２Ｓ〜３０％本 法の変動率
（Ｖｌ）−５〜１〇−
というような結果が得られた。しかして、この間。The fluctuation rate (v) of quantitative supplyability is v-■11. ×100 (chi) 2: Average (target) supply amount σ: Standard deviation of supply amount Variation rate of conventional method (Vo > -2S ~ 30%Variation rate of present method (Vl) -5 ~ 10- The results were as follows.However, during this time.
スクリューフィダー（２）は空転しているだけであって
過負荷状態になることはない。The screw feeder (2) is only idling and is not overloaded.
なお、スクリューフィダーを粉体排出部側を上へやや角
度をもたせて傾斜させて昇り勾配に設置することは、粉
体によるヘッド差が生じ排出量の経時変化を緩和し本発
明の効果をさらに向上させることに有効である。Incidentally, installing the screw feeder on an upward slope with the powder discharge portion side tilted upward at a slight angle will reduce the change in the discharge amount over time due to head differences due to the powder, and further enhance the effect of the present invention. It is effective in improving
本発明は、スクリューフィダーの粉体排出部とベルトス
ケールとの間にクッションホッパ−ヲ設け、粉体ヘッド
差を創り出すようにしたので粉体のフラッシングが発生
してもクッションタンクにうけることによって、フラッ
シングを緩和し、粉体供給量の経時変化がきわめて少な
く、粉体の定量供給性を向上し維持し得たものであって
、大きな効果が認められる。In the present invention, a cushion hopper is provided between the powder discharge part of the screw feeder and the belt scale to create a difference in the powder head, so that even if powder flushing occurs, it is collected in the cushion tank. This method alleviates flushing, has very little change over time in the amount of powder supplied, and improves and maintains constant supply of powder, which is a significant effect.
第１図は１本発明の一実施例を示す粉体の定量供給装置
の概念図、第２図は２本発明のクッションホッパ一部の
説明用概念図、第３図は１本発明のクッションホッパ一
部の他の実施例を示ス概念図であり、第４図は９本発明
のクッションホツ、Ｓ一部のさらに他の実施例を示す概
念図である。
（１）・・・粉体ホッパー
（２）・・・スクリューフィダー
（３）・・・ベルトスケール
（４）・・・クッションホッパー
（５）・・・粉体排出部 （６）・・・上 板（７）
・・・底 板 （８）・・・側 板（９）・・・
空気抜き （１０）・・・粉体供給部（イ）・・・
粉体排出部（５）の先端
（ロ）・・・粉体供給部端縁
（ハ）・・・粉体排出部（５）の先端（イ）と粉体供給
部端縁（ロ）とを結ぶ面
特許出願人 日本軽金属株式会社
−封Fig. 1 is a conceptual diagram of a powder quantitative supply device showing an embodiment of the present invention, Fig. 2 is a conceptual diagram for explaining a part of the cushion hopper of the present invention, and Fig. 3 is a conceptual diagram of a part of the cushion hopper of the present invention. FIG. 4 is a conceptual diagram showing another embodiment of a part of the hopper, and FIG. 4 is a conceptual diagram showing still another embodiment of the cushion hotter and S part of the present invention. (1)...Powder hopper (2)...Screw feeder (3)...Belt scale (4)...Cushion hopper (5)...Powder discharge section (6)...Top Board (7)
...Bottom plate (8)...Side plate (9)...
Air vent (10)...Powder supply section (a)...
The tip (b) of the powder discharge section (5)...the edge of the powder supply section (c)...the tip (a) of the powder discharge section (5) and the edge (b) of the powder supply section Patent applicant for surface connecting Nippon Light Metal Co., Ltd. - Seal
Claims (1)
）とベルトスケール（３）との間に設けられ上板（６）
底板（７）側板（８）とよりな抄スクリエーフイダ＝（
２）の粉体排出部（５）を上板（６）に嵌挿し底板（７
）の長さく１＞とスクリューフィダー（２）の粉体排出
部（５）の先端（イ）と底板（７）との間隔（ｈｌ）と
を粉体排出部（５）の先端（イ）と底板（７）の粉体供
給部端縁（ロ）とを結ぶ面（ハ）とがなす角（０）を取
扱う粉体のほぼ休止角（α）になるように設定して底板
（７）を設は粉体排出部（５）の先端（イ）と上板（６
）との間隔（ｈ２）を粉体ヘッド差（ん）より大きく設
定して上板（６）を設は上板（６）に空気抜き（９）を
設は底板（７）に粉体供給部（１０）を設けてなるクッ
ションホッパー（４）とよりなることを特徴とする粉体
の定量供給装置。[Claims] 1) Powder hopper (1), screw feeder (2). Belt scale (3) and screw feeder (2)
) and the belt scale (3).
Bottom plate (7), side plate (8) and more paper screen feeder = (
Insert the powder discharge part (5) of 2) into the top plate (6) and attach it to the bottom plate (7).
) and the distance (hl) between the tip (a) of the powder discharge part (5) of the screw feeder (2) and the bottom plate (7). The angle (0) formed by the surface (c) connecting the edge (b) of the powder supply section of the bottom plate (7) and the powder feeding section edge (b) of the bottom plate (7) are set so that the angle (0) is approximately the rest angle (α) of the powder. ) is installed between the tip (a) of the powder discharge section (5) and the upper plate (6).
) is set to be larger than the powder head difference (mm), and the upper plate (6) is installed, and the air vent (9) is installed on the upper plate (6), and the powder supply section is installed on the bottom plate (7). (10) A quantitative supply device for powder, comprising a cushion hopper (4) provided with a cushion hopper (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6085982A JPS58177828A (en) | 1982-04-12 | 1982-04-12 | Fixed quantity feeder of powder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6085982A JPS58177828A (en) | 1982-04-12 | 1982-04-12 | Fixed quantity feeder of powder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS58177828A true JPS58177828A (en) | 1983-10-18 |
Family
ID=13154523
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6085982A Pending JPS58177828A (en) | 1982-04-12 | 1982-04-12 | Fixed quantity feeder of powder |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58177828A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104495418A (en) * | 2014-11-27 | 2015-04-08 | 太仓圣广仁自动化设备有限公司 | Small automatic feeder |
| CN106904418A (en) * | 2017-01-09 | 2017-06-30 | 中交航局安装工程有限公司 | A kind of activating feeder feed control system and control method |
| CN110817359A (en) * | 2019-10-17 | 2020-02-21 | 临涣焦化股份有限公司 | Movable baffle plate of stacker-reclaimer |
| JP2020101308A (en) * | 2018-12-20 | 2020-07-02 | 三菱日立パワーシステムズ株式会社 | Chute section protective device, and chute section of fluidized bed boiler |
-
1982
- 1982-04-12 JP JP6085982A patent/JPS58177828A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104495418A (en) * | 2014-11-27 | 2015-04-08 | 太仓圣广仁自动化设备有限公司 | Small automatic feeder |
| CN106904418A (en) * | 2017-01-09 | 2017-06-30 | 中交航局安装工程有限公司 | A kind of activating feeder feed control system and control method |
| JP2020101308A (en) * | 2018-12-20 | 2020-07-02 | 三菱日立パワーシステムズ株式会社 | Chute section protective device, and chute section of fluidized bed boiler |
| CN110817359A (en) * | 2019-10-17 | 2020-02-21 | 临涣焦化股份有限公司 | Movable baffle plate of stacker-reclaimer |
| CN110817359B (en) * | 2019-10-17 | 2021-12-21 | 临涣焦化股份有限公司 | Blanking mechanism of stacker-reclaimer |
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