JPH10299700A - Adjusting method and device for transportation amount of powder - Google Patents
Adjusting method and device for transportation amount of powderInfo
- Publication number
- JPH10299700A JPH10299700A JP9116481A JP11648197A JPH10299700A JP H10299700 A JPH10299700 A JP H10299700A JP 9116481 A JP9116481 A JP 9116481A JP 11648197 A JP11648197 A JP 11648197A JP H10299700 A JPH10299700 A JP H10299700A
- Authority
- JP
- Japan
- Prior art keywords
- powder
- amount
- ejector pump
- air
- supplied
- 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
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
- B05B7/14—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas designed for spraying particulate materials
- B05B7/1404—Arrangements for supplying particulate material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
- B05B7/14—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas designed for spraying particulate materials
- B05B7/1404—Arrangements for supplying particulate material
- B05B7/1472—Powder extracted from a powder container in a direction substantially opposite to gravity by a suction device dipped into the powder
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、粉体塗装等の分野にお
いて実施されている粉体タンク内に流動状態に貯留され
ている粉体を、エゼクタポンプを用いて噴出ガン等へ輸
送する方法における、粉体輸送量の可変調節方法とその
装置に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for transporting powder stored in a fluid state in a powder tank to an ejection gun or the like using an ejector pump. The present invention relates to a method and an apparatus for variably adjusting the amount of transported powder.
【０００２】[0002]
【従来の技術】従来技術の事例として、粉体塗装等の分
野でよく用いられている、粉体タンク内に流動状態に貯
留されている粉体を、エゼクタポンプを用いて噴出ガン
等へ輸送する方法を、図３を用いて説明する。すなわち
図３は従来の粉体塗装方法の説明図である。2. Description of the Related Art As an example of the prior art, a powder stored in a flowing state in a powder tank, which is often used in the field of powder coating and the like, is transported to an ejection gun or the like using an ejector pump. The method for performing the above will be described with reference to FIG. That is, FIG. 3 is an explanatory view of a conventional powder coating method.
【０００３】図において符号１は空気吹き込み型の流動
床式の粉体タンクであり、該粉体タンク１は、管路２を
介して制御装置３で調整された圧縮気体４を、前記流動
床式の粉体タンク１の底部の空気室５に導入し、通気性
の多孔質板６を通して粉体タンク１内へ吹き込み、多孔
質板６の上側にある粉体７が流動状態に貯留されるもの
である。[0003] In the figure, reference numeral 1 denotes an air blowing type fluidized bed type powder tank. The powder tank 1 is provided with a compressed gas 4 adjusted by a control device 3 through a pipe 2 and the fluidized bed. It is introduced into the air chamber 5 at the bottom of the powder tank 1 of the type, and is blown into the powder tank 1 through the air-permeable porous plate 6, and the powder 7 above the porous plate 6 is stored in a flowing state. Things.
【０００４】８は前記粉体タンク１の上蓋９上に設置さ
れたエゼクタポンプであり、該エゼクタポンプ８は、制
御装置３によって調整された圧縮気体を管路１０から受
けて、エゼクタポンプ８内のベンチュリー作用により、
粉体タンク１内に挿入された吸引管１１から流動状態の
粉体７を吸引し、更にホース１２を介して粉体噴出ガン
１３へと粉体７を輸送する。[0004] Reference numeral 8 denotes an ejector pump installed on the upper lid 9 of the powder tank 1. The ejector pump 8 receives the compressed gas adjusted by the control device 3 from a pipe 10, and receives the compressed gas from the ejector pump 8. Venturi action
The powder 7 in a flowing state is sucked from a suction pipe 11 inserted into the powder tank 1, and the powder 7 is transported to a powder ejection gun 13 via a hose 12.
【０００５】そして粉体噴出ガン１３へ運ばれた粉体
は、制御装置３からケーブル１４を介して粉体噴出ガン
１３へ供給される高電圧電流によるコロナ放電によっ
て、粉体が静電気的に帯電されて、粉体噴出ガン１３か
ら被塗物へ向けて噴出塗布される。１５は、粉体タンク
１内の粉体レベルを監視するための粉体レベル検出器で
ある。The powder conveyed to the powder ejection gun 13 is charged electrostatically by corona discharge caused by a high voltage current supplied from the controller 3 to the powder ejection gun 13 via the cable 14. Then, the powder is ejected from the powder ejection gun 13 toward the object to be applied. Reference numeral 15 denotes a powder level detector for monitoring the powder level in the powder tank 1.
【０００６】このような粉体塗装方法において、粉体噴
出ガン１３から噴出する粉体噴出量を可変調節させよう
とする場合、エゼクタポンプ８へ供給する圧縮気体すな
わちジェットエアの量を可変制御させて行っていた。In such a powder coating method, when the amount of powder ejected from the powder ejecting gun 13 is to be variably adjusted, the amount of compressed gas, ie, jet air, supplied to the ejector pump 8 is variably controlled. I was going.
【０００７】[0007]
【発明が解決しようとする課題】上記の従来の技術に
は、次のような問題があった。すなわちそれはエゼクタ
ポンプ８へ供給する圧縮気体の量が増えていくにつれ
て、エゼクタポンプに吸引される粉体の量が増える。従
って、粉体噴出ガン１３から噴出する粉体の量が微小噴
出量のときと大噴出量のときとでは、噴出する勢いが異
なってくる。また粉体噴出ガン１３から噴出する粉体の
噴出勢いが変わると、被塗物への粉体の塗れ性も変わっ
てしまうという問題があった。The above prior art has the following problems. That is, as the amount of compressed gas supplied to the ejector pump 8 increases, the amount of powder sucked into the ejector pump increases. Therefore, when the amount of the powder ejected from the powder ejection gun 13 is the minute ejection amount and when the amount of the powder is large, the ejection force differs. Further, when the ejection force of the powder ejected from the powder ejection gun 13 changes, the wettability of the powder to the object to be coated also changes.
【０００８】そのために、粉体の噴出量を変える場合に
は、その都度最適な塗布条件、例えば粉体噴出ガンと被
塗物の距離、塗布時間等の条件を再調整する必要があっ
た。そして、その条件を求めるために試し塗り等を行う
など、時間もかかって大変面倒なものであった。For this reason, each time the amount of powder to be ejected is changed, it is necessary to readjust the optimum application conditions, for example, the conditions such as the distance between the powder ejection gun and the object to be coated and the application time. Then, it takes time and is very troublesome, for example, a trial coating is performed to obtain the conditions.
【０００９】本発明は、このような問題点に鑑みてなさ
れたものであり、本発明の目的は、粉体塗装分野等にお
いて実施されている粉体タンク内に流動状態に貯留され
る粉体を、エゼクタポンプを用いて噴出ガン等へ輸送す
る方法において、エゼクタポンプへ供給する圧縮気体す
なわちジェットエアの量を変化させることなく、エゼク
タポンプの粉体輸送量を可変調節させることができる、
粉体輸送方法及びその装置を提供することを目的とする
ものである。The present invention has been made in view of the above problems, and an object of the present invention is to provide a method for storing powder stored in a fluid state in a powder tank which is used in the field of powder coating and the like. In the method of transporting to an ejection gun or the like using an ejector pump, the powder transport amount of the ejector pump can be variably adjusted without changing the amount of compressed gas, that is, jet air supplied to the ejector pump.
It is an object of the present invention to provide a method for transporting powder and an apparatus therefor.
【００１０】[0010]
【課題を解決するための手段】本発明は、上記の目的を
達成するために次のような構成とした。すなわち、粉体
タンク内に流動状態に貯留されている粉体を、エゼクタ
ポンプを用いて噴出ガンへ輸送する方法において、エゼ
クタポンプの吸引管の内部へ希釈エアを供給し、該希釈
エアの供給量を調節することにより粉体の輸送量を可変
調節するようにしたことを特徴とする、粉体輸送量の調
節方法とした。Means for Solving the Problems The present invention has the following configuration to achieve the above object. That is, in the method of transporting the powder stored in the fluid state in the powder tank to the ejection gun using the ejector pump, the dilution air is supplied to the inside of the suction pipe of the ejector pump, and the supply of the dilution air is performed. A method for adjusting the amount of powder transported, characterized in that the amount of powder transport is variably adjusted by adjusting the amount.
【００１１】また、粉体タンク内に流動状態に貯留され
ている粉体を、エゼクタポンプを用いて噴出ガンへ輸送
する装置であって、前記エゼクタポンプの吸引管の内部
に希釈エアを供給するためのエア供給管を設け、該エア
供給管の先端吹き出し口には通気性多孔質材からなるエ
アキャップが設けられると共に、エア供給管の他端はエ
ア供給量を調節するための制御弁を介してエア供給源と
接続されていることを特徴とする、粉体輸送量の調節装
置とした。An apparatus for transporting powder stored in a fluid state in a powder tank to an ejection gun using an ejector pump, wherein dilution air is supplied into a suction pipe of the ejector pump. Air supply pipe for air supply, an air cap made of a gas-permeable porous material is provided at a tip outlet of the air supply pipe, and the other end of the air supply pipe has a control valve for adjusting an air supply amount. An apparatus for controlling the amount of powder transported, characterized in that the apparatus is connected to an air supply source via the air supply source.
【００１２】[0012]
【発明の実施の形態】次に本発明の実施の形態について
説明する。本発明の方法では、前記したような構成の粉
体塗装等における粉体輸送量の調節方法としたので、流
動状態にある粉体が、エゼクタポンプの吸引管の内部へ
吸引されるとき、吸引管内部へ希釈エアを供給すること
により、吸引管内の粉体分散密度が希釈される。そし
て、該希釈エアの供給量を可変調節することにより気体
中の粉体分散密度も変化する。Next, an embodiment of the present invention will be described. In the method of the present invention, since the method for adjusting the amount of powder transported in powder coating or the like having the above-described configuration is used, when the powder in a flowing state is sucked into the suction pipe of the ejector pump, By supplying dilution air to the inside of the tube, the powder dispersion density in the suction tube is diluted. By variably adjusting the supply amount of the dilution air, the powder dispersion density in the gas also changes.
【００１３】すなわちエゼクタポンプのジェッエアを一
定にしておいた場合に、希釈エアの供給料をゼロとした
とき粉体の輸送量が最も多く、希釈エアの供給料を増し
てゆくと希釈エアの供給量の増加に逆比例するかたちで
粉体の輸送量が減少する。従って、希釈エアの供給量を
可変調節することにより粉体の輸送量も調節することが
でき、しかもその調節は無段階に行うことが出来る。That is, when the jet air of the ejector pump is kept constant, the amount of powder transported is the largest when the supply of the dilution air is set to zero, and the supply of the dilution air is increased when the supply of the dilution air is increased. The amount of powder transport decreases in inverse proportion to the increase in amount. Therefore, by variably adjusting the supply amount of the dilution air, the transport amount of the powder can be adjusted, and the adjustment can be performed steplessly.
【００１４】本発明によれば、従来のエゼクタポンプへ
供給する圧縮気体すなわちジェットエアの量を可変させ
て行っていた粉体輸送量の調節方法に比べ、極めて低
圧、微量のエア供給の調節によって、粉体の輸送量を可
変制御することが出来る。従って、粉体噴出ガンからの
粉体噴出条件例えば噴出勢い等の変化なしに、粉体の噴
出量のみを可変させることができるので、粉体噴出ガン
と被塗物との距離などの塗装条件を変更せずに厚塗りや
薄塗りなどの塗布条件が自由に選択できる。According to the present invention, compared to the conventional method of adjusting the amount of powder transport that is performed by varying the amount of compressed gas, ie, jet air, supplied to the ejector pump, the supply of a very low pressure and a small amount of air is controlled. The amount of powder transport can be variably controlled. Therefore, since only the amount of powder ejected can be varied without changing the conditions for ejecting powder from the powder ejecting gun, for example, the force of ejection, the coating conditions such as the distance between the powder ejecting gun and the object to be coated can be changed. The coating conditions such as thick coating and thin coating can be freely selected without changing.
【００１５】[0015]
【実施例】以下本発明の粉体塗装における粉体輸送量の
調節方法とその装置の実施例を図面を用いて詳細に説明
する。図１は本発明の粉体塗装における粉体輸送量の調
節装置の全体構成を示す図であり、図２は図１の要部拡
大断面図である。なお従来の粉体塗装方法と同一機能を
果たす部分には従来例の説明で用いた符号と同一の符号
を付して説明する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a method and an apparatus for controlling the amount of powder transported in powder coating according to the present invention will be described below in detail with reference to the drawings. FIG. 1 is a diagram showing the entire configuration of a device for controlling the amount of powder transported in powder coating according to the present invention, and FIG. 2 is an enlarged sectional view of a main part of FIG. Note that portions having the same functions as those of the conventional powder coating method are denoted by the same reference numerals as those used in the description of the conventional example.
【００１６】図において符号１は空気吹き込み型の流動
床式の粉体タンクであり、該粉体タンク１は、管路２を
介して制御装置３で調整された圧縮気体４を、前記流動
床式の粉体タンク１の底部の空気室５に導入し、通気性
の多孔質板６を通して粉体タンク１内へ吹き込み、多孔
質板６の上側にある粉体７が、流動状態に貯留される構
造をしている。In the figure, reference numeral 1 denotes an air blowing type fluidized bed type powder tank. The powder tank 1 is provided with a compressed gas 4 adjusted by a control device 3 via a pipe 2 and the fluidized bed. The powder 7 is introduced into an air chamber 5 at the bottom of the powder tank 1 and blows into the powder tank 1 through a gas-permeable porous plate 6, and the powder 7 above the porous plate 6 is stored in a fluid state. The structure is
【００１７】８は前記粉体タンク１の上蓋９上に設置さ
れたエゼクタポンプであり、該エゼクタポンプ８は、制
御装置３によって調整された圧縮気体を管路１０から受
けて、エゼクタポンプ８内のベンチュリー作用により、
粉体タンク１内に挿入された吸引管１１から流動状態の
粉体７を吸引する。２１は先端が粉体タンク１の壁面を
貫通して吸引管１１内に挿入されている希釈エア供給管
で、該希釈エア供給管２１は制御弁２２を介してエア供
給源２３へ接続されている。希釈エア供給管２１の先端
吹き出し口には、希釈エアの吹き出し方向性を打ち消す
ための通気性多孔質材からなるエアキャップ２４が装着
されている。２５は希釈エア供給管２１の位置決め用の
支持部材で、スパイダー状に設けられる。Reference numeral 8 denotes an ejector pump installed on the upper lid 9 of the powder tank 1. The ejector pump 8 receives the compressed gas adjusted by the control device 3 from the pipe 10 and Venturi action
The powder 7 in a flowing state is sucked from a suction pipe 11 inserted into the powder tank 1. Reference numeral 21 denotes a dilution air supply pipe whose tip penetrates the wall surface of the powder tank 1 and is inserted into the suction pipe 11. The dilution air supply pipe 21 is connected to an air supply source 23 through a control valve 22. I have. An air cap 24 made of a permeable porous material for canceling the direction of blowing out the dilution air is attached to the tip outlet of the dilution air supply pipe 21. Reference numeral 25 denotes a support member for positioning the dilution air supply pipe 21, which is provided in a spider shape.
【００１８】エゼクタポンプ８の吐出側には、ホース１
２を介して粉体噴出ガン１３が設けられる。そして粉体
噴出ガン１３へ運ばれた粉体は、制御装置３からケーブ
ル１４を介して粉体噴出ガン１３へ供給される高電圧電
流によるコロナ放電によって、静電気的に帯電され、粉
体噴出ガン１３から図示されていない被塗物へ向けて噴
出塗布される。１５は、粉体タンク１内の粉体レベルを
監視するための粉体レベル検出器である。The discharge side of the ejector pump 8 has a hose 1
2, a powder ejection gun 13 is provided. The powder conveyed to the powder ejecting gun 13 is electrostatically charged by corona discharge due to a high voltage current supplied to the powder ejecting gun 13 from the control device 3 via the cable 14, and the powder ejecting gun 13 is charged. From 13, spray coating is performed toward a coating object (not shown). Reference numeral 15 denotes a powder level detector for monitoring the powder level in the powder tank 1.
【００１９】次にこのように構成された粉体塗装装置の
作用を説明すると、先ず粉体タンク１内に粉体を供給
し、次に制御装置３で調整された圧縮気体４を、管路２
を介して粉体タンク１の底部の空気室５に導入する。す
ると圧縮気体４は多孔質板６を通して多孔質板６の上側
にある粉体７を流動状態に維持する。Next, the operation of the powder coating apparatus constructed as described above will be described. First, powder is supplied into the powder tank 1 and then the compressed gas 4 adjusted by the controller 3 is supplied to the pipe line. 2
To the air chamber 5 at the bottom of the powder tank 1. Then, the compressed gas 4 keeps the powder 7 on the upper side of the porous plate 6 in a fluidized state through the porous plate 6.
【００２０】そして粉体噴出ガン１３へ高電圧電流を供
給すると共に、制御装置３によって調整された圧縮気体
を管路１０を介してエゼクタポンプ８へ供給すると、エ
ゼクタポンプ８のベンチュリー作用により、流動状態の
粉体７が吸引管１１からエゼクタポンプ８内へ吸引さ
れ、更にホース１２を介して粉体噴出ガン１３へと輸送
される。When a high-voltage current is supplied to the powder ejection gun 13 and the compressed gas adjusted by the control device 3 is supplied to the ejector pump 8 via the pipe 10, the flow is caused by the venturi action of the ejector pump 8. The powder 7 in the state is sucked from the suction pipe 11 into the ejector pump 8 and further transported to the powder ejection gun 13 via the hose 12.
【００２１】このとき、エゼクタポンプ８による粉体輸
送量を可変調節するには、希釈エアを希釈エア供給管２
１から吸引管１１内へ供給する。粉体の輸送量は、希釈
エアの供給がゼロのとき最大となり、希釈エアの供給量
を増加させるにつれて輸送量が減少する。希釈エアの供
給量は制御弁２２の調節によって行われる。At this time, in order to variably adjust the amount of powder transported by the ejector pump 8, the dilution air is supplied to the dilution air supply pipe 2.
1 to the suction tube 11. The transport amount of the powder becomes maximum when the supply of the dilution air is zero, and decreases as the supply amount of the dilution air increases. The supply amount of the dilution air is adjusted by adjusting the control valve 22.
【００２２】希釈エアの供給が希釈エア供給管２１の先
端に設けた多孔質材からなるエアキャップ２４を介して
行われるのは、希釈エアに方向性があると輸送量に脈動
を生じる場合があり、これを防止するためである。また
エアキャップ２４は、常に流動状態の粉体レベルよりも
高い位置にすることが望ましい。エアキャップ２４が粉
体レベルよりも高い位置にあるのと粉体レベルよりも低
い位置にあるのとでは、輸送状態に若干の微差が出る場
合がある。粉体レベルを監視するのに粉体レベル検出器
１５が役立つ。The supply of dilution air is performed via the air cap 24 made of a porous material provided at the tip of the dilution air supply pipe 21. If the dilution air has directionality, the transport amount may pulsate. Yes, to prevent this. It is desirable that the air cap 24 is always at a position higher than the powder level in the flowing state. When the air cap 24 is at a position higher than the powder level and at a position lower than the powder level, there may be a slight difference in the transportation state. The powder level detector 15 is useful for monitoring the powder level.
【００２３】そして粉体噴出ガン１３へ運ばれた粉体７
は、粉体噴出ガン１３に供給された高電圧電流によるコ
ロナ放電によって静電気的に帯電されて、粉体噴出ガン
１３から被塗物へ向けて噴出される。The powder 7 transported to the powder ejection gun 13
Is electrostatically charged by corona discharge due to the high voltage current supplied to the powder ejection gun 13 and is ejected from the powder ejection gun 13 toward the object to be coated.
【００２４】本実施例によれば、従来のエゼクタポンプ
へ供給する圧縮気体すなわちジェットエアの量を可変調
節させて行っていた粉体輸送量の調節方法に比べ、極め
て低圧、微量の希釈エアの供給調節によって、粉体の輸
送量を可変制御することが出来る。従って粉体噴出ガン
からの粉体噴出条、件例えば噴出勢い等の変化なしに、
粉体の噴出量のみを可変させることができる。According to the present embodiment, compared with the conventional method of adjusting the amount of powder transport, which is performed by variably adjusting the amount of compressed gas supplied to the ejector pump, ie, the amount of jet air, extremely low pressure and a small amount of dilution air are used. By controlling the supply, the transport amount of the powder can be variably controlled. Therefore, without a change of the powder ejection line from the powder ejection gun, such as the ejection force,
Only the ejection amount of the powder can be changed.
【００２５】なお、本実施例では、低圧、微量の希釈エ
アを吸引管内へ強制供給するように構成したが、これを
エゼクタポンプの吸引力による自然吸気により行い、吸
気量を制御する方法で行っても、ほぼ同様の制御が出来
る。しかし、強制供給に比べて、自然吸気の場合は、粉
体の輸送量を制御できる範囲も小さく、また高精度での
制御がむずかしい。In this embodiment, low pressure and a small amount of dilution air are forcibly supplied into the suction pipe. However, this is performed by natural suction using the suction force of the ejector pump, and the suction amount is controlled. However, almost the same control can be performed. However, in the case of natural suction, the range in which the amount of powder transported can be controlled is smaller than that in the case of forced supply, and it is difficult to control with high accuracy.
【００２６】[0026]
【発明の効果】本発明の粉体輸送方法及びその装置は上
記のような構成としたので、粉体タンク内に流動状態に
貯留されている粉体を、エゼクタポンプを用いて輸送す
る方法において、エゼクタポンプへ供給する圧縮気体す
なわちジェットエアの量を変化させることなく一定に保
ったままで、希釈エアの供給量を調節するだけで、エゼ
クタポンプの粉体輸送量を可変させることができる。し
かも粉体塗装分野等においては、粉体噴出ガンからの粉
体噴出勢い等の変化がないので、粉体噴出ガンと被塗物
の距離などの塗布条件を変更せずに、厚塗りや薄塗りな
どの条件が粉体輸送量を変更するだけで自由に選択でき
る。As described above, the method and the apparatus for transporting powder of the present invention have the above-mentioned structure. Therefore, the method for transporting the powder stored in the powder tank in a flowing state by using an ejector pump is provided. In addition, the powder transport amount of the ejector pump can be varied only by adjusting the supply amount of the dilution air while keeping the amount of the compressed gas, that is, the jet air supplied to the ejector pump constant, without changing it. In addition, in the field of powder coating, there is no change in the force of the powder ejecting from the powder ejecting gun. Conditions such as coating can be freely selected only by changing the amount of powder transported.
【図１】本発明の実施例を示す粉体塗装における粉体輸
送量の調節装置の全体構成を示す図。FIG. 1 is a diagram showing the overall configuration of a device for adjusting the amount of transported powder in powder coating according to an embodiment of the present invention.
【図２】図１の要部拡大断面図。FIG. 2 is an enlarged sectional view of a main part of FIG.
【図３】従来の粉体塗装方法の説明図である。FIG. 3 is an explanatory view of a conventional powder coating method.
１…粉体タンク、３…制御装置、７…粉体、８…エゼク
タポンプ、１１…吸引管、１３…粉体噴出ガン、２１…
希釈エア供給管、２２…制御弁、２４…エアキャップ。DESCRIPTION OF SYMBOLS 1 ... Powder tank, 3 ... Control device, 7 ... Powder, 8 ... Ejector pump, 11 ... Suction tube, 13 ... Powder ejection gun, 21 ...
Dilution air supply pipe, 22 ... control valve, 24 ... air cap.
Claims (2)
る粉体を、エゼクタポンプを用いて輸送する方法におい
て、エゼクタポンプの吸引管の内部へ希釈エアを供給
し、該希釈エアの供給量を調節することにより、粉体の
輸送量を調節するようにしたことを特徴とする、粉体輸
送量の調節方法。1. A method of transporting powder stored in a fluid state in a powder tank by using an ejector pump, wherein dilution air is supplied into a suction pipe of the ejector pump, and the dilution air is supplied. A method for adjusting the amount of transported powder, characterized in that the amount of transported powder is adjusted by adjusting the amount.
る粉体を、エゼクタポンプを用いて輸送する装置であっ
て、前記エゼクタポンプの吸引管の内部に希釈エアを供
給するためのエア供給管を設け、該エア供給管の先端吹
き出し口には通気性多孔質材からなるエアキャップが設
けられると共に、エア供給管の他端はエア供給量を調節
するための制御弁を介してエア供給源と接続されている
ことを特徴とする、粉体輸送量の調節装置。2. An apparatus for transporting powder stored in a fluid state in a powder tank by using an ejector pump, wherein air for supplying dilution air to a suction pipe of the ejector pump is provided. A supply pipe is provided, and an air cap made of a gas-permeable porous material is provided at a tip outlet of the air supply pipe, and the other end of the air supply pipe is supplied with air through a control valve for adjusting an air supply amount. An apparatus for controlling the amount of transported powder, which is connected to a supply source.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9116481A JPH10299700A (en) | 1997-04-18 | 1997-04-18 | Adjusting method and device for transportation amount of powder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9116481A JPH10299700A (en) | 1997-04-18 | 1997-04-18 | Adjusting method and device for transportation amount of powder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH10299700A true JPH10299700A (en) | 1998-11-10 |
Family
ID=14688186
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9116481A Pending JPH10299700A (en) | 1997-04-18 | 1997-04-18 | Adjusting method and device for transportation amount of powder |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH10299700A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008229544A (en) * | 2007-03-22 | 2008-10-02 | Asahi Sunac Corp | Fluid type powder paint tank |
| KR101525900B1 (en) * | 2014-01-27 | 2015-06-03 | 박성수 | a solid type adhesive putting apparatus of a board edge machine |
| CN107755118A (en) * | 2017-11-23 | 2018-03-06 | 中山市君禾机电设备有限公司 | A kind of powder bucket structure |
| CN112840107A (en) * | 2018-10-02 | 2021-05-25 | 康明斯排放处理公司 | System and method for introducing dry chemical reductant into an aftertreatment system |
Citations (5)
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|---|---|---|---|---|
| JPS4978974U (en) * | 1972-10-26 | 1974-07-09 | ||
| JPS6194923A (en) * | 1984-10-12 | 1986-05-13 | ノードソン コーポレーシヨン | Venturi type powdered body pump |
| JPS61112800A (en) * | 1984-11-05 | 1986-05-30 | ノードソン コーポレーシヨン | Powdered body pump with deflector for suction pipe |
| JPS62699A (en) * | 1985-06-12 | 1987-01-06 | ノ−ドソン コ−ポレ−シヨン | Venturi powdered body pump with rotatory diffuser |
| JPH06218305A (en) * | 1993-01-25 | 1994-08-09 | Kurimoto Ltd | Powder coating device |
-
1997
- 1997-04-18 JP JP9116481A patent/JPH10299700A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4978974U (en) * | 1972-10-26 | 1974-07-09 | ||
| JPS6194923A (en) * | 1984-10-12 | 1986-05-13 | ノードソン コーポレーシヨン | Venturi type powdered body pump |
| JPS61112800A (en) * | 1984-11-05 | 1986-05-30 | ノードソン コーポレーシヨン | Powdered body pump with deflector for suction pipe |
| JPS62699A (en) * | 1985-06-12 | 1987-01-06 | ノ−ドソン コ−ポレ−シヨン | Venturi powdered body pump with rotatory diffuser |
| JPH06218305A (en) * | 1993-01-25 | 1994-08-09 | Kurimoto Ltd | Powder coating device |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008229544A (en) * | 2007-03-22 | 2008-10-02 | Asahi Sunac Corp | Fluid type powder paint tank |
| KR101525900B1 (en) * | 2014-01-27 | 2015-06-03 | 박성수 | a solid type adhesive putting apparatus of a board edge machine |
| CN107755118A (en) * | 2017-11-23 | 2018-03-06 | 中山市君禾机电设备有限公司 | A kind of powder bucket structure |
| CN112840107A (en) * | 2018-10-02 | 2021-05-25 | 康明斯排放处理公司 | System and method for introducing dry chemical reductant into an aftertreatment system |
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