JP3236535B2 - Removal device for powder adhering to surface - Google Patents
Removal device for powder adhering to surfaceInfo
- Publication number
- JP3236535B2 JP3236535B2 JP18962597A JP18962597A JP3236535B2 JP 3236535 B2 JP3236535 B2 JP 3236535B2 JP 18962597 A JP18962597 A JP 18962597A JP 18962597 A JP18962597 A JP 18962597A JP 3236535 B2 JP3236535 B2 JP 3236535B2
- Authority
- JP
- Japan
- Prior art keywords
- powder
- collision plate
- conveyed object
- discharge
- supply
- 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 - Fee Related
Links
Landscapes
- Air Transport Of Granular Materials (AREA)
- Combined Means For Separation Of Solids (AREA)
Description
【0001】[0001]
【発明の属する技術分野】本発明は、粉体が周囲に付着
した搬送物を投入して、前記搬送物から前記粉体を分離
するための分離室を内部形成する筒状本体を設け、主に
前記分離室の内部に対する前記搬送物の落下供給路を形
成する供給筒部を設け、前記供給筒部の下方側には、前
記搬送物を衝突させて前記搬送物の表面に付着した前記
粉体を飛散させるための衝突板を設け、前記衝突板の周
辺部と前記筒状本体の内周壁との隙間には、前記搬送物
の落下のみを許容し、前記飛散した粉体は前記分離室内
に吹き上げるべく、前記分離室内に流入するガス流路を
形成し、前記吹き上げられた粉体を前記分離室から排出
するための筒状の排出路を、前記供給筒部の外方側で同
芯状に配置して前記筒状本体内に設けてある表面付着粉
体の除去装置に関する。BACKGROUND OF THE INVENTION The present invention relates to a cylindrical body for forming a separation chamber for separating a powder from the conveyed object by introducing a conveyed object having powder adhered to the periphery thereof. A supply tube portion that forms a supply path for dropping the conveyed object with respect to the inside of the separation chamber, and the powder adhering to the surface of the conveyed object by colliding the conveyed object below the supply cylinder portion. A collision plate for scattering the body is provided, and only a drop of the conveyed object is allowed in a gap between a peripheral portion of the collision plate and an inner peripheral wall of the cylindrical main body, and the scattered powder is collected in the separation chamber. In order to blow up the gas, a gas flow path into the separation chamber is formed, and a cylindrical discharge path for discharging the blown-up powder from the separation chamber is concentric on the outer side of the supply cylinder. concerning the removal device of surface attachment powder disposed in Jo is provided on said tubular body That.
【0002】[0002]
【従来の技術】従来、この種の表面付着粉体の除去装置
は、例えば、図5に示すものがあった。つまり、搬送物
1を装置の内部に設けた衝突板10に衝突させ、搬送物
1の表面に付着した粉体7を分離飛散させると共に、こ
の粉体7を、衝突板10の下方から吹き上げるガス流G
によって装置の外部に排出するのである。2. Description of the Related Art Conventionally, this type of apparatus for removing powder adhering to a surface is, for example, shown in FIG. That is, the conveyed object 1 is caused to collide with the collision plate 10 provided inside the apparatus, the powder 7 attached to the surface of the conveyed object 1 is separated and scattered, and the powder 7 is blown up from below the collision plate 10. Style G
This discharges it out of the device.
【0003】このように、搬送物1の表面に付着してい
る粉体7を除去する必要が生じるのは、例えば、非晶質
ポリエステルのチップ(以下、「PETチップ1a」と
称する)を所定の重合度となるように重合反応させる場
合である。原料である非晶質のPETチップ1aからペ
ットボトル等を製造する際には、所定の強度等を具備さ
せるために、PETチップ1aを一定の程度にまで固相
重合する必要がある。このため、PETチップ1aは結
晶化機等を用いて所定の温度に加熱する。ただし、固相
重合を行う際の搬送途中や乾燥工程等において、PET
チップ1aどうしが、或いは、PETチップ1aと機器
の壁面等とが接触したり擦れたりするため、PETチッ
プ1aの表面にはPETの微粉が付着することがある。
このように、サイズの異なるPETチップ1aとPET
の粉体7とが、同時に前記結晶化機等で昇温されると、
PETの粉体7の温度上昇が極めて早期に行われる結
果、PETチップ1aの重合度とPET粉体7の重合度
とが大幅に異なることとなり、均質なPET材料を得る
ことができない。そこで、従来においては、図5に示す
ような表面付着粉体の除去装置を用いて搬送物1の表面
に付着している粉体7を除去していた。As described above, it is necessary to remove the powder 7 adhering to the surface of the conveyed article 1 by, for example, using an amorphous polyester chip (hereinafter referred to as a “PET chip 1a”). This is a case where the polymerization reaction is carried out so that the polymerization degree becomes as follows. When manufacturing a PET bottle or the like from the amorphous PET chip 1a as a raw material, it is necessary to subject the PET chip 1a to solid-state polymerization to a certain degree in order to provide a predetermined strength or the like. Therefore, the PET chip 1a is heated to a predetermined temperature using a crystallization machine or the like. However, during the solid phase polymerization, during the transportation or during the drying step, PET
The fine particles of PET may adhere to the surface of the PET chip 1a because the chips 1a or the PET chip 1a and the wall surface of the device come into contact with or rub against each other.
As described above, the PET chips 1a and PET having different sizes are different from each other.
When the temperature of the powder 7 is simultaneously raised by the crystallization machine or the like,
As a result of the temperature rise of the PET powder 7 being performed very early, the degree of polymerization of the PET chip 1a and the degree of polymerization of the PET powder 7 are significantly different, and a homogeneous PET material cannot be obtained. Therefore, conventionally, the powder 7 adhering to the surface of the conveyed article 1 has been removed using a device for removing powder adhering to the surface as shown in FIG.
【0004】[0004]
【発明が解決しようとする課題】しかし、上記従来の表
面付着粉体の除去装置によれば、次のような問題があっ
た。つまり、従来の除去装置では、除去装置の内部を単
に筒部材30で仕切ることで、落下供給路13と筒状の
排出路20とを構成しており、搬送物1の落下供給路1
3と粉体7の排出路20とが極めて近接した構成となっ
ていた。この結果、前記衝突板10で跳ね返った搬送物
1が前記排出筒部20aに容易に侵入して、搬送物1ま
でもが排出される不都合があった。また、図5に示すご
とく、供給筒部13aと排出筒部20aとを仕切る筒部
材30の下端部が外方に曲げて形成してあったから、排
出筒部20aの軸芯Z方向に沿った当該排出筒部20a
の断面積が変化していた。この結果、排出筒部20aの
内部におけるガス流Gに乱流が生じ、粉体7の搬送が阻
害されて、十分な粉体7の排出効果が得られない場合が
あった。However, the above-described conventional apparatus for removing powder adhering to a surface has the following problems. In other words, in the conventional eliminating apparatus, by partitioning the interior of the removal device simply cylindrical member 30, it constitutes a drop-supply passage 13 and the cylindrical <br/> discharge channel 2 0, dropping the conveyed object 1 Supply path 1
3 and the discharge path 20 for the powder 7 were very close to each other. As a result, there is a problem that the conveyed object 1 rebounded by the collision plate 10 easily enters the discharge tube portion 20a, and even the conveyed object 1 is discharged. Further, as shown in FIG. 5, the lower end portion of the cylindrical member 30 that separates the supply cylindrical portion 13a and the discharge cylindrical portion 20a is formed by bending outward, so that it extends along the axis Z of the discharge cylindrical portion 20a. The discharge cylinder portion 20a
Was changing in cross section. As a result, a turbulent flow occurs in the gas flow G inside the discharge tube portion 20a, and the conveyance of the powder 7 is hindered, and a sufficient discharge effect of the powder 7 may not be obtained.
【0005】本発明の目的は、このような従来技術の欠
点を解消し、搬送物の表面に付着した粉体のみを確実に
分別し得る表面付着粉体の除去装置を得ることにある。SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned drawbacks of the prior art and to provide an apparatus for removing powder adhering to a surface which can reliably separate only powder adhering to the surface of a conveyed object.
【0006】[0006]
【課題を解決するための手段】この目的を達成するため
の本発明の特徴構成を、図2から図4に示した例を参考
に説明する。The features of the present invention for achieving this object will be described with reference to the examples shown in FIGS.
【0007】(構成1) 本発明の表面付着粉体の除去装置は、請求項1に記載し
たごとく、前記筒状の排出路20は、前記供給筒部13
aより大径に形成された筒状の隔壁部21と前記筒状本
体との間に形成されており、前記排出路20の断面形状
を、その延出方向に沿った何れの位置においても略等し
く形成した点に特徴を有する。(作用・効果) 本構成のごとく、排出路を形成する筒状の隔壁部の径
を、供給筒部より大きく設定することで、前記供給筒部
に対して前記排出筒部をより外方側に離間させることが
できる。よって、前記衝突板と、前記排出筒部の下端部
との距離が長くなり、前記衝突板に衝突した搬送物が前
記排出筒部に侵入する機会を低化させて、排出物への搬
送物の混入を少なくすることができる。また、前記排出
筒部の断面形状を、当該排出筒部の延出方向に沿った何
れの位置においても等しく形成してあるから、前記排出
筒部におけるガスの流れが安定する。本構成の場合、ガ
ス流速が、前記排出筒部の下端部と上端部とで略同じと
なるうえに、ガスの流れに乱流が生じることがない。よ
って、排出筒部内でのガス流速が、前記粉体を搬送する
のに十分な速度に設定されていれば、前記排出筒部の下
端部に一旦侵入した粉体は、前記排出筒部を介して確実
に排出されることとなる。(Structure 1) In the apparatus for removing powder adhering to a surface according to the present invention, as described in claim 1, the cylindrical discharge passage 20 is provided in the supply cylindrical portion 13.
a and a cylindrical partition 21 having a larger diameter than the cylindrical book
It is formed between the body and the body, and is characterized in that the cross-sectional shape of the discharge path 20 is substantially equal at any position along the extending direction. (Operation / Effect) As in the present configuration, the diameter of the cylindrical partition wall forming the discharge path is set to be larger than that of the supply cylinder, so that the discharge cylinder is positioned more outward with respect to the supply cylinder. Can be separated from each other. Therefore, the distance between the collision plate and the lower end portion of the discharge cylinder portion is increased, and the chance that the conveyed material that has collided with the collision plate enters the discharge cylinder portion is reduced, so that the conveyed material to the discharge material is reduced. Can be reduced. In addition, since the cross-sectional shape of the discharge cylinder is formed equally at any position along the extension direction of the discharge cylinder, the gas flow in the discharge cylinder is stable. In the case of this configuration, the gas flow velocity is substantially the same at the lower end portion and the upper end portion of the discharge cylinder portion, and no turbulence occurs in the gas flow. Therefore, if the gas flow velocity in the discharge cylinder is set to a speed sufficient to convey the powder, the powder once entering the lower end of the discharge cylinder will pass through the discharge cylinder. And will be reliably discharged.
【0008】(構成2) 本発明の表面付着粉体の除去装置は、請求項2に記載し
たごとく、前記隔壁部21を前記内側筒部材14よりも
大径の外側筒部材22で構成することができる。 (作用・効果) 本構成であれば、例えば、供給筒部を構成する内側筒部
材と、排出路を形成するための隔壁部を構成する外側筒
部材とを径の異なる別部材で形成して、前記供給筒部を
装置の軸芯側において小径に構成し、前記排出路を筒状
本体の側において大径に構成することができる。この場
合には、衝突板に対する搬送物の衝突位置と前記排出路
の下端部との距離を、装置軸芯の径方向において積極的
に離間させることができる。この結果、衝突板で跳ね返
った搬送物が前記排出路に侵入する機会をさらに低下さ
せて粉体の分離効果を高めることができる。[0008] (Configuration 2) apparatus for removing surface adhesion powder of the present invention is composed of claim 2 as described, the partition wall portion 21 of the front Symbol outer tubular member 2 2 diameter larger than the inner tubular member 14 can do. (Operation / Effect) According to this configuration, for example, the inner cylindrical member forming the supply cylindrical portion and the outer cylindrical member forming the partition portion for forming the discharge path are formed by different members having different diameters. The supply cylinder may be configured to have a small diameter on the axis side of the apparatus, and the discharge path may be configured to have a large diameter on the side of the cylindrical body. In this case, the distance between the collision position of the conveyed object against the collision plate and the lower end of the discharge path can be positively separated in the radial direction of the apparatus axis. As a result, it is possible to further reduce the chance that the conveyed object rebounded by the collision plate enters the discharge path , and enhance the powder separating effect.
【0009】(構成3) 本発明の表面付着粉体の除去装置は、請求項3に記載し
たごとく、前記供給筒部13aの内部に補助衝突板10
aを設けて構成することができる。 (作用・効果) 本構成であれば、前記供給筒部の内部を落下してきた搬
送物は、先ず当該補助衝突板によって衝撃をうけ、搬送
物の表面に付着した粉体の一部が分離し、あるいは、粉
体の一部が搬送物の表面から浮き上がった状態となる。
よって、このあとの下方に位置する衝突板での衝撃によ
って、粉体を確実に分離することができる。(Structure 3) According to a third aspect of the present invention, there is provided an apparatus for removing powder adhering to a surface, wherein an auxiliary collision plate 10 is provided inside the supply tube portion 13a.
a can be provided. (Operation / Effect) With this configuration, the conveyed object that has fallen inside the supply cylinder is first impacted by the auxiliary collision plate, and part of the powder attached to the surface of the conveyed object is separated. Alternatively, a part of the powder rises from the surface of the conveyed object.
Therefore, the powder can be reliably separated by the impact of the collision plate located below.
【0010】(構成4) 本発明の表面付着粉体の除去装置は、請求項4に記載し
たごとく、前記供給筒部の下方側に設けられた前記衝突
板10を多段階に構成してある点に特徴を有する。 (作用・効果) 本構成によれば、搬送物の衝突回数が増加し、搬送物か
ら飛散分離する粉体の割合を高めることができて、粉体
の除去効果がより良好なものとなる。(Structure 4) In the apparatus for removing powder adhering to a surface according to the present invention, as described in claim 4, the collision plate 10 provided below the supply tube portion is configured in multiple stages. It is characterized by points. (Operation / Effect) According to this configuration, the number of collisions of the conveyed object is increased, and the ratio of the powder scattered and separated from the conveyed object can be increased, so that the effect of removing the powder is further improved.
【0011】(構成5) 本発明の表面付着粉体の除去装置は、請求項5に記載し
たごとく、前記多段階の衝突板10の下面25bを、下
向き円錐面に構成することができる。 (作用・効果) 本構成であれば、下方からのガス流が前記下面に沿って
流れることとなるから、飛散した粉体が前記下面に付着
して堆積することがなく、粉体の排出効率を高めること
ができる。当然ではあるが、前記衝突板の上面には搬送
物が衝突するので、当該上面に粉体が堆積することはな
い。(Structure 5) In the device for removing powder adhering to a surface according to the present invention, the lower surface 25b of the multi-stage impact plate 10 may be formed as a downwardly conical surface. (Operation / Effect) According to this configuration, the gas flow from below flows along the lower surface, so that the scattered powder does not adhere to and accumulate on the lower surface, and the powder is discharged efficiently. Can be increased. As a matter of course, since the conveyed object collides with the upper surface of the collision plate, powder does not accumulate on the upper surface.
【0012】尚、上記課題を解決するための手段の説明
中、図面を参照し、図面との対照を便利にするために符
号を記すが、当該記入により本発明が添付図面の構成に
限定されるものではない。In the description of the means for solving the above problems, reference is made to the drawings, and in order to facilitate comparison with the drawings, reference characters will be described. However, the present invention is limited to the configuration of the accompanying drawings. Not something.
【0013】[0013]
【発明の実施の形態】以下に本発明の実施例を図面に基
づいて説明する。Embodiments of the present invention will be described below with reference to the drawings.
【0014】(概要) 本発明に係る表面付着粉体の除去装置(以下、単に「粉
体除去装置」と称する)は、例えば図1に示すごとく、
搬送物1である非晶質ポリエステルチップ(以下、「P
ETチップ」と称する)の重合システムSにおいて用い
られる。当該重合システムSは、例えば以下の構成から
なる。即ち、搬送物1であるPETチップ1aを5分間
程度保持して150℃〜170℃に昇温させ、PETチ
ップ1aを結晶化させて後の工程等を容易にする結晶化
機2と、当該結晶化機2での処理が完了したPETチッ
プ1aを160℃〜180℃下で3〜4時間維持して乾
燥させる乾燥器3と、乾燥が終了したPETチップ1a
の重合度を上げるために185℃〜200℃に昇温する
ための昇温器4と、当該昇温が終了したPETチップ1
aの重合度を所定の重合度に上げるために200℃程度
の温度に所定時間維持するためのリアクタ5と、さら
に、所定の重合度に達したPETチップ1aを冷却する
冷却器6とから構成される。(Summary) An apparatus for removing powder adhering to a surface according to the present invention (hereinafter simply referred to as “powder removing apparatus”) is, for example, as shown in FIG.
An amorphous polyester chip (hereinafter referred to as “P
ET chip "). The polymerization system S has, for example, the following configuration. That is, a crystallization machine 2 that holds the PET chip 1a, which is the transported object 1, for about 5 minutes and raises the temperature to 150 ° C. to 170 ° C. to crystallize the PET chip 1a to facilitate subsequent processes and the like. A dryer 3 for drying the PET chips 1a that have been processed in the crystallizer 2 at 160 ° C. to 180 ° C. for 3 to 4 hours, and drying the PET chips 1a.
Heater 4 for raising the temperature to 185 ° C. to 200 ° C. in order to increase the degree of polymerization of PET chip 1
A reactor 5 for maintaining the temperature of about 200 ° C. for a predetermined time in order to raise the degree of polymerization of a to a predetermined degree of polymerization, and a cooler 6 for cooling the PET chip 1a that has reached the predetermined degree of polymerization. Is done.
【0015】本発明に係る粉体除去装置は、上記重合シ
ステムSのうち、例えば、乾燥器3とリアクタ5との上
方に取り付けて用いる。当該粉体除去装置は、PETチ
ップ1aの表面に付着したPETの微粉を分離除去する
ための装置である。これらの粉体7は、PETチップ1
aを搬送する際の、PETチップ1aどうしの衝突・摩
擦により、あるいは、PETチップ1aと装置の器壁と
の衝突・摩擦等によって発生する。仮に、PETチップ
1aと多くの前記粉体7が混在した状態でPETチップ
1aの重合反応を進めた場合には、PETチップ1aの
昇温速度と前記粉体7の昇温速度が異なること等に起因
して、製品の重合度が均一化されないという不都合が生
じる。このため、前記重合システムSの所定の段階にお
いて、PETチップ1aの表面に付着している粉体7を
除去するのである。尚、前記乾燥器3と前記結晶化機2
とに亘っては、これらの装置に高温ガスを循環させるた
めの第1ガス循環路8を設けてある。また、前記昇温器
4と前記リアクタ5とに亘っては、これらの装置にやは
り高温ガスを循環させるための第2ガス循環路9を設け
てある。本発明の粉体除去装置は、前記第1ガス循環路
8および前記第2ガス循環路9を流通するガスを利用す
ることで、特別なガス流路を形成することなく、搬送物
1であるPETチップ1aの表面に付着した粉体7を除
去するものである。The powder removing apparatus according to the present invention is used by being attached above, for example, the dryer 3 and the reactor 5 in the polymerization system S. The powder removing device is a device for separating and removing PET fine powder attached to the surface of the PET chip 1a. These powders 7 are PET chips 1
This occurs due to the collision / friction of the PET chips 1a when transporting a, or the collision / friction of the PET chips 1a and the wall of the apparatus. If the polymerization reaction of the PET chip 1a is advanced in a state where the PET chip 1a and a large amount of the powder 7 are mixed, the temperature rising rate of the PET chip 1a may be different from the temperature rising rate of the powder 7. As a result, there is a disadvantage that the degree of polymerization of the product is not uniform. Therefore, at a predetermined stage of the polymerization system S, the powder 7 adhering to the surface of the PET chip 1a is removed. The drying unit 3 and the crystallization unit 2
A first gas circulation path 8 for circulating a high-temperature gas is provided in these devices. Further, between the heater 4 and the reactor 5, a second gas circulation path 9 for circulating a high-temperature gas is also provided in these devices. The powder removing device of the present invention uses the gas flowing through the first gas circulation path 8 and the second gas circulation path 9 to form the conveyed article 1 without forming a special gas flow path. This is for removing the powder 7 attached to the surface of the PET chip 1a.
【0016】(表面付着粉体の除去装置) 本発明に係る粉体除去装置の構成を図2に示す。当該粉
体除去装置は、搬送物1であるPETチップ1aを上方
から投入して内部に設けた衝突板10にPETチップ1
aを衝突させ、その衝撃でPETチップ1aの表面から
分離させた粉体7のみを衝突板10の下方から噴出させ
るガス流Gによって排出するものである。以下、粉体除
去装置の詳細について述べる。(Device for Removing Surface-Adhered Powder) FIG. 2 shows the configuration of a powder removing device according to the present invention. The powder removing apparatus puts the PET chip 1a, which is the conveyed object 1, from above and inserts the PET chip 1a into the collision plate 10 provided inside.
a, and only the powder 7 separated from the surface of the PET chip 1 a by the impact is discharged by the gas flow G ejected from below the collision plate 10. Hereinafter, details of the powder removing apparatus will be described.
【0017】〈筒状本体〉 前記粉体除去装置は、略円筒状の筒状本体11を有する
と共に、当該筒状本体11の内部には、PETチップ1
aを投入して、前記PETチップ1aから前記粉体7を
分離するための分離室12を有する。<Cylindrical Body> The powder removing device has a substantially cylindrical tubular body 11 and a PET chip 1 inside the cylindrical body 11.
a, and a separation chamber 12 for separating the powder 7 from the PET chip 1a.
【0018】〈供給筒部〉 前記分離室12の上方には、主に、PETチップ1aの
落下供給路13となる供給筒部13aを設けてある。こ
の供給筒部13aは、例えば、単に円筒形状を呈する内
側筒部材14で構成する。当該供給筒部13aの軸芯
は、装置本体の軸芯と一致させてある。以降、これらの
軸芯を軸芯Zで表す。当該供給筒部13aは、後述する
衝突板10に対してPETチップ1aを確実に衝突させ
るための案内筒として機能すると共に、前記衝突板10
の下方からのガス流Gの一部が、当該供給筒部13aの
上方に接続してある結晶化機2に流入する際の経路とし
ても機能する。<Supply Cylinder> A supply cylinder 13 a serving as a fall supply path 13 for the PET chip 1 a is provided above the separation chamber 12. The supply tube portion 13a is constituted by, for example, an inner tube member 14 having a simply cylindrical shape. The axis of the supply cylinder 13a is aligned with the axis of the apparatus main body. Hereinafter, these axes are represented by axis Z. The supply tube portion 13a functions as a guide tube for reliably causing the PET chip 1a to collide with the collision plate 10 described later,
Also functions as a path when a part of the gas flow G from below flows into the crystallizer 2 connected above the supply tube portion 13a.
【0019】〈衝突板〉 当該供給筒部13aの下方側には、前記PETチップ1
aを衝突させて前記PETチップ1aの表面に付着した
前記粉体7を飛散させるための衝突板10を設けてあ
る。当該衝突板10は、例えば、側面視において略正三
角形となる円錐形を呈する傘状の部材である。PETチ
ップ1aの衝突を確実なものとするために、当該衝突板
10の外径は、前記供給筒部13aの内径よりも大径と
する。当該衝突板10は前記供給筒部13aの軸芯Z上
に配置する。衝突板10の下面側中央部には、前記軸芯
Z方向に延出する支持棒15が取り付けてある。この支
持棒15は、前記筒状本体11の内周壁16に取り付け
られた支持脚17に対し、上下位置調節機構18を介し
て取り付けてある。前記支持脚17は、例えば、三本の
板状の脚部で構成し、PETチップ1aが落下通過する
際の障害とならないように、板状の面内に前記軸芯Zを
含むように配置する。さらに、前記支持脚17の上下端
部は、PETチップ1aの通過がより円滑に行えるよう
エッジ状に加工しておく。<Collision plate> The PET chip 1 is provided below the supply cylinder 13a.
A collision plate 10 is provided for colliding a and scattering the powder 7 attached to the surface of the PET chip 1a. The collision plate 10 is, for example, an umbrella-shaped member having a conical shape that becomes a substantially equilateral triangle in a side view. In order to ensure the collision of the PET chip 1a, the outer diameter of the collision plate 10 is set to be larger than the inner diameter of the supply cylinder 13a. The collision plate 10 is disposed on the axis Z of the supply cylinder 13a. A support rod 15 extending in the axis Z direction is attached to a central portion on the lower surface side of the collision plate 10. The support rod 15 is attached to a support leg 17 attached to an inner peripheral wall 16 of the tubular main body 11 via a vertical position adjustment mechanism 18. The support leg 17 is composed of, for example, three plate-like legs, and is disposed so as to include the axis Z in a plate-like surface so as not to hinder the PET chip 1a from dropping and passing. I do. Further, the upper and lower ends of the support leg 17 are processed into an edge shape so that the PET chip 1a can pass more smoothly.
【0020】前記衝突板10の周辺部と前記筒状本体1
1との間には、所定の隙間を形成しておく。当該隙間
は、前記分離室12内に高温のガスを流入させるための
ガス流路19として機能する。粉体除去装置が前記乾燥
器3に取り付けられている場合には、前記ガス流Gは、
当該乾燥器3と前記結晶化機2とに亘る第1ガス循環路
8のガスを利用する。このため、当該粉体除去装置を構
成するにあたって、別途、粉体7分離用のガス供給手段
を設ける必要がなく、装置構成を簡略化することができ
る。前記ガス流路19を介しては、PETチップ1aの
みが下方に通過することができ、衝突板10との衝撃で
分離飛散した粉体7は、前記ガス流Gにより分離室12
内に保持され、粉体7を排出するための排出路20であ
る排出筒部20aから排出される。前記筒状本体11の
内周壁16のうち、前記衝突板10の側方に位置する部
分は、図2に示すごとく、上向きに広がった略円錐形状
の面をなす。本構成であれば、前記衝突板10の位置を
上下に調節することで、前記ガス流路19の拡縮が自在
となり、前記ガス流路19でのガス流速を制御すること
ができる。The peripheral portion of the collision plate 10 and the cylindrical main body 1
A predetermined gap is formed between the first gap and the first gap. The gap functions as a gas flow path 19 for flowing a high-temperature gas into the separation chamber 12. When a powder removing device is attached to the dryer 3, the gas flow G is
The gas in the first gas circulation path 8 extending between the dryer 3 and the crystallizer 2 is used. For this reason, in configuring the powder removing device, it is not necessary to separately provide a gas supply unit for separating the powder 7, and the configuration of the device can be simplified. Only the PET chip 1a can pass downward through the gas flow path 19, and the powder 7 separated and scattered by the impact with the collision plate 10 is separated by the gas flow G into the separation chamber 12
The powder 7 is discharged from a discharge cylinder 20a which is a discharge path 20 for discharging the powder 7. As shown in FIG. 2, a portion of the inner peripheral wall 16 of the cylindrical main body 11 located on the side of the collision plate 10 has a substantially conical surface that extends upward. With this configuration, by adjusting the position of the collision plate 10 up and down, the gas flow path 19 can be freely expanded and contracted, and the gas flow velocity in the gas flow path 19 can be controlled.
【0021】〈排出筒部〉 前記分離室12の上方であって、前記供給筒部13aの
外方側には、前記供給筒部13aを取り囲む状態に排出
筒部20aを形成してある。当該排出筒部20aは、分
離室12内に吹き上げられた粉体7を筒状本体11の外
部に排出するための排出路20として機能する。図2に
示すごとく、前記排出筒部20aは、前記筒状本体11
の内周壁16と隔壁部21とで形成する。当該隔壁部2
1は、後述するごとく、前記供給筒部13aとの径を異
ならせるために、前記内側筒部材14とは別個の外側筒
部材22で構成するのが望ましい。前記排出筒部20a
の軸芯は前記供給筒部13aの軸芯Zと一致させてあ
る。前記排出筒部20aの上方部には、分離した粉体7
を排出するための粉体排出口23を設けてある。前記分
離室12から当該粉体排出口23にかけては、前記ガス
流Gの一部を分流させる。当該粉体排出口23は、略円
筒状の排出筒部20aに対して接線方向に開口する状態
に設けてあるから、前記ガス流Gは、前記排出筒部20
aの内部を螺旋上昇する。ここで、前記排出筒部20a
の下端部に侵入した前記粉体7を前記粉体排出口23ま
で確実に搬送するためには、前記排出筒部20aにおけ
るガス流速を低下させないことが重要である。そのた
め、本実施形態においては、前記排出筒部20aの断面
形状を、前記排出筒部20aの延出方向すなわち軸芯Z
に沿った何れの位置においても等しく形成してある。本
構成であれば前記排出筒部20aの何れの場所において
もガス圧力等の変動が生じず、ガス流Gに乱流が生じる
こともないから、排出筒部20aの全領域に亘って安定
なガス流Gが形成される。尚、前記ガス流Gの流速は、
前記粉体7を上昇搬送させ得る速度であり、かつ、PE
Tチップ1aを上昇させるには不十分な速度とする。当
該速度であれば、仮に、前記排出筒部20a内にPET
チップ1aが侵入した場合にも、PETチップ1aは再
び分離室12内に落下することとなって、粉体7の分離
がより確実になる。前記排出筒部20a内のガス流速
は、主に、軸芯Zの径方向における前記排出筒部20a
の幅と、粉体排出口23からのガス排出量とで決定でき
る。つまり、排出筒部20aの幅が狭いほど、および、
ガス排出量が多いほどガス流速は大きくなる。<Discharge Cylinder> A discharge cylinder 20a is formed above the separation chamber 12 and outside the supply cylinder 13a so as to surround the supply cylinder 13a. The discharge cylinder portion 20a functions as a discharge path 20 for discharging the powder 7 blown into the separation chamber 12 to the outside of the cylindrical main body 11. As shown in FIG. 2, the discharge cylinder portion 20a is
Of the inner peripheral wall 16 and the partition 21. The partition 2
As described later, it is desirable that the first member 1 be constituted by an outer tube member 22 which is different from the inner tube member 14 in order to make the diameter different from that of the supply tube portion 13a. The discharge cylinder 20a
Is aligned with the axis Z of the supply cylinder 13a. Separated powder 7 is provided above the discharge cylinder 20a.
A powder discharge port 23 for discharging powder is provided. A part of the gas flow G is divided from the separation chamber 12 to the powder outlet 23. Since the powder discharge port 23 is provided so as to open in a tangential direction with respect to the substantially cylindrical discharge tube portion 20a, the gas flow G flows through the discharge tube portion 20a.
spirally ascends inside a. Here, the discharge cylinder 20a
In order to surely transport the powder 7 that has entered the lower end portion of the discharge tube 23 to the powder discharge port 23, it is important that the gas flow rate in the discharge cylinder 20a is not reduced. For this reason, in the present embodiment, the cross-sectional shape of the discharge cylinder 20a is changed in the extending direction of the discharge cylinder 20a, that is, the axis Z.
Are equally formed at any position along the line. With this configuration, gas pressure and the like do not fluctuate in any place of the discharge cylinder portion 20a, and turbulence does not occur in the gas flow G. A gas flow G is formed. The flow rate of the gas flow G is
A speed at which the powder 7 can be lifted and conveyed, and PE
The speed is insufficient to raise the T chip 1a. If it is the speed, the PET is temporarily stored in the discharge cylinder 20a.
Even when the chip 1a enters, the PET chip 1a falls into the separation chamber 12 again, and the separation of the powder 7 becomes more reliable. The gas flow rate in the discharge cylinder 20a is mainly due to the discharge cylinder 20a in the radial direction of the axis Z.
And the amount of gas discharged from the powder discharge port 23 can be determined. That is, the narrower the width of the discharge cylinder portion 20a is,
The greater the gas emission, the greater the gas flow rate.
【0022】粉体7の除去効果を向上させるためには、
前記供給筒部13aと前記排出筒部20aとを前記軸芯
Zの径方向において離間させて構成することが有効であ
る。具体的には、図2に示すごとく、前記排出筒部20
aの最小内径が前記供給筒部13aの最大外径よりも大
きくなるように構成する。前記内側筒部材14と前記外
側筒部材22とを径の異なる別個の部材で構成した場
合、PETチップ1aの落下経路が分離室12内の中心
側に絞られることとなり、衝突板10に対するPETチ
ップ1aの衝突位置と前記排出筒部20aの下端部との
径方向距離を広げる効果が生じる。この結果、衝突板1
0で跳ね上がったPETチップ1aが前記排出筒部20
aに侵入する機会を低減化できる。また、本構成であれ
ば、供給筒部13aから落下供給されるPETチップ1
aは、確実に衝突板10に衝突することとなり、衝突板
10に衝突することなく衝突板10の下方に落下するP
ETチップ1aの数が減少する。この結果、衝突によっ
て分離させられる粉体7の量が増大し、粉体7の除去割
合を増大することができる。さらに、粉体7の除去効果
を向上させるためには、前記軸芯Z方向に沿った前記排
出筒部20aの長さを大きく設定することも有効であ
る。仮に、前記排出筒部20aの下端部にPETチップ
1aが侵入した場合でも、前記ガス流速は、PETチッ
プ1aを上昇させるには不十分なものであるから、原則
として、PETチップ1aは前記排出筒部20aの内部
で上昇速度を減じ、ついには下降に移行する。つまり、
前記排出筒部20aにPETチップ1aが侵入したとし
ても、排出筒部20aの下端部から上昇し得る最大高さ
はある程度の範囲に制限される。よって、前記排出筒部
20aを当該最大高さ以上に設定しておけば、PETチ
ップ1aが前記粉体排出口23から排出されることはな
い。In order to improve the effect of removing the powder 7,
It is effective that the supply cylinder 13a and the discharge cylinder 20a are separated from each other in the radial direction of the axis Z. Specifically, as shown in FIG.
The minimum inner diameter of a is larger than the maximum outer diameter of the supply cylinder 13a. When the inner cylindrical member 14 and the outer cylindrical member 22 are formed of different members having different diameters, the falling path of the PET chip 1a is narrowed to the center side in the separation chamber 12, and the PET chip with respect to the collision plate 10 This has the effect of increasing the radial distance between the collision position 1a and the lower end of the discharge cylinder 20a. As a result, the collision plate 1
The PET chip 1a jumped up at 0
a can be reduced. Further, in the case of this configuration, the PET chip 1 dropped and supplied from the supply cylinder 13a is provided.
a is such that P reliably falls on the collision plate 10 and falls below the collision plate 10 without colliding with the collision plate 10.
The number of ET chips 1a decreases. As a result, the amount of the powder 7 separated by the collision increases, and the removal ratio of the powder 7 can be increased. Further, in order to improve the effect of removing the powder 7, it is effective to set the length of the discharge cylinder portion 20a along the axis Z direction to be large. Even if the PET chip 1a enters the lower end of the discharge cylinder 20a, the gas flow rate is insufficient to raise the PET chip 1a. The ascending speed is reduced inside the cylindrical portion 20a, and finally, it shifts to descending. That is,
Even if the PET chip 1a enters the discharge cylinder 20a, the maximum height that can rise from the lower end of the discharge cylinder 20a is limited to a certain range. Therefore, if the discharge cylinder portion 20a is set to be equal to or more than the maximum height, the PET chip 1a will not be discharged from the powder discharge port 23.
【0023】 (効果) 粉体7の分離条件は、搬送する材料に応じて、主に、径
方向における前記排出筒部20aの間隔、および、軸芯
Z方向に沿った排出筒部20aの長さ、ガス流速により
決定できるから、条件設定が容易である。また、分離室
12に供給するガス流Gを、流速がそれほど大きくない
乾燥器3やリアクタ5に供給するガス流Gを流用するも
のとしても、上記のごとく前記排出筒部20aのサイズ
を適宜設定することで粉体7の分離排出を確実に行える
から、専用の分離ガス供給手段等を別途設ける必要がな
く、簡単な構成でありながら、PETチップ1a等の搬
送物1の表面に付着した粉体7のみを効率的に分離除去
することができる。(Effects) The separation conditions of the powder 7 mainly depend on the distance between the discharge cylinders 20 a in the radial direction and the length of the discharge cylinder 20 a along the axis Z depending on the material to be conveyed. Since it can be determined by the gas flow rate, the condition setting is easy. Further, even if the gas flow G supplied to the separation chamber 12 is diverted from the gas flow G supplied to the dryer 3 or the reactor 5 whose flow velocity is not so large, the size of the discharge tube portion 20a is appropriately set as described above. By doing so, the separation and discharge of the powder 7 can be reliably performed, so that it is not necessary to separately provide a dedicated separation gas supply means or the like. Only the body 7 can be efficiently separated and removed.
【0024】〔別実施形態〕 〈1〉 上記実施形態では衝突板10を一つ設けて構成
したが、図3に示すごとく前記供給筒部13aの下端部
に補助衝突板10aを設けて構成してもよい。当該補助
衝突板10aも、前記衝突板10と同様に三角錐状の傘
部材で構成する。当該補助衝突板10aは、前記供給筒
部13aに取り付ける。具体的には、棒状の支持脚17
aを十字に組んだものを前記供給筒部13aに取付け、
当該支持脚17aに補助衝突板10aを載置して固定す
る。当該固定は、溶接など任意の手法を用いて行う。こ
のように、補助衝突板10aを設けておけば、落下して
きたPETチップ1aは先ず前記補助衝突板10aによ
って衝撃をうけ、PETチップ1aの表面に付着した粉
体7の一部が分離し、あるいは、粉体7の一部がPET
チップ1aの表面から浮き上がった状態となる。よっ
て、このあとの下方に位置する衝突板10での衝撃によ
って、粉体7が確実に分離されるのである。[Alternative Embodiment] <1> In the above embodiment, one collision plate 10 is provided. However, as shown in FIG. 3, an auxiliary collision plate 10a is provided at the lower end of the supply cylinder 13a. You may. The auxiliary collision plate 10a is also formed of a triangular pyramid-shaped umbrella member like the collision plate 10. The auxiliary collision plate 10a is attached to the supply cylinder 13a. Specifically, the rod-shaped support legs 17
a is attached to the supply tube portion 13a,
The auxiliary collision plate 10a is placed and fixed on the support leg 17a. The fixing is performed using an arbitrary method such as welding. In this way, if the auxiliary collision plate 10a is provided, the PET chip 1a that has fallen is first impacted by the auxiliary collision plate 10a, and a part of the powder 7 attached to the surface of the PET chip 1a is separated. Alternatively, part of the powder 7 is made of PET.
The chip 1a floats from the surface. Therefore, the powder 7 is reliably separated by the impact of the collision plate 10 located below.
【0025】〈2〉 衝突板10を多段に構成するもの
としては、図4に示すものであってもよい。本別実施形
態における衝突板10は、胴部24と複数の衝突片25
とで構成する。複数の衝突片25は、例えば何れも同じ
外径を有するものとし、前記軸芯Z方向に沿って等間隔
に設ける。本構成により、上方から落下してきたPET
チップ1aは、これら衝突片25で跳ね返り、筒状本体
11の内周壁16との間で反撥を繰り返すから、粉体7
の分離効果を高めることができる。前記胴部24の上端
部と下端部とには、傾斜面26を設けてある。上端部の
傾斜面26は、PETチップ1aの衝突面として機能す
ると共に、落下してきたPETチップ1aが衝突板10
の上部に堆積するのを防止する機能とを有する。下端部
の傾斜面26は、粉体除去装置下方から供給されるガス
流に与える抵抗を減ずる機能を有する。前記複数の衝突
片25は、夫々、略円錐状の上面25aと下面25bと
を有する算盤玉状に形成してある。このうち、上面25
aはPETチップ1aの衝突面として機能する。一方、
下面25bはガス流Gの整流面として機能する。つま
り、前記下面25bを、下方ほど縮径する略円錐面とし
ておけば、下方からのガス流Gは前記下面25bに沿っ
て流れることとなり、粉体7が前記下面25bに付着し
て堆積するのを防止することができる。前記衝突片25
の角度は側方視において45〜60度に設定すると、P
ETチップ1aの落下と、ガス流Gの上昇とが円滑に行
われて好都合である。前記衝突板10の支持は、前述の
支持脚17と同様のものを用いて行う。ただし、筒状本
体11の内周壁16は略円筒状に形成してあって内径は
略一定であるから、当該支持脚17への取付けに際し
て、上下方向への位置調節機構を設ける必要性は少な
い。尚、本別実施形態の衝突板10は図4から明らかな
ごとく、上下方向において対称形をなす。このため、筒
状本体11への取付け方向が制限されず、取付け作業が
簡単になる。<2> As shown in FIG. 4, the collision plate 10 may be configured in multiple stages. The collision plate 10 according to the present embodiment includes a body 24 and a plurality of collision pieces 25.
And The plurality of collision pieces 25 have, for example, the same outer diameter, and are provided at equal intervals along the axis Z direction. With this configuration, PET dropped from above
Since the chip 1a is rebounded by the collision pieces 25 and repeatedly repelled with the inner peripheral wall 16 of the cylindrical main body 11, the powder 1a
Separation effect can be enhanced. An inclined surface 26 is provided at an upper end and a lower end of the body 24. The inclined surface 26 at the upper end functions as a collision surface for the PET chip 1a, and the dropped PET chip 1a
And a function of preventing the particles from being deposited on the upper part. The inclined surface 26 at the lower end has a function of reducing the resistance applied to the gas flow supplied from below the powder removing device. Each of the plurality of collision pieces 25 is formed in an abacus ball shape having a substantially conical upper surface 25a and a lower surface 25b. Of these, the top 25
a functions as a collision surface of the PET chip 1a. on the other hand,
The lower surface 25b functions as a gas flow rectifying surface. In other words, if the lower surface 25b is formed as a substantially conical surface whose diameter decreases toward the lower side, the gas flow G from below flows along the lower surface 25b, and the powder 7 adheres to and accumulates on the lower surface 25b. Can be prevented. The collision piece 25
Is set at 45 to 60 degrees in side view, P
It is convenient that the ET chip 1a falls smoothly and the gas flow G rises smoothly. The collision plate 10 is supported using the same support legs 17 as those described above. However, since the inner peripheral wall 16 of the cylindrical main body 11 is formed in a substantially cylindrical shape and the inner diameter is substantially constant, there is little need to provide a vertical position adjusting mechanism when attaching to the support leg 17. . It should be noted that the collision plate 10 of this embodiment has a symmetrical shape in the vertical direction, as is apparent from FIG. For this reason, the mounting direction to the cylindrical main body 11 is not restricted, and the mounting operation is simplified.
【0026】(実施例) 以下には、図3および図4に示す別実施形態に示した粉
体除去装置を用いてPETチップ1aの表面に付着した
粉体7を分離除去した場合の実施例を示す。比較は、粉
体7を除去する前のPETチップ1aと、本発明の粉体
除去装置を通過させたあとのPETチップ1aとにつ
き、付着している粉体7の量を測定して行った。この場
合の粉体7の除去は、16メッシュのふるいを用い、湿
式ふるい分け法により行った。PETチップ1aは、短
幅が約2mm、長幅が約3mmの略楕円形状の断面を有
し、長さが約4mmのものを使用した。(Example) The following is an example in which the powder 7 attached to the surface of the PET chip 1a is separated and removed by using the powder removing device shown in another embodiment shown in FIGS. 3 and 4. Is shown. The comparison was performed by measuring the amount of powder 7 adhering to the PET chip 1a before removing the powder 7 and the PET chip 1a after passing through the powder removing device of the present invention. . In this case, the powder 7 was removed by a wet sieving method using a 16-mesh sieve. The PET chip 1a used had a substantially elliptical cross section with a short width of about 2 mm and a long width of about 3 mm, and a length of about 4 mm.
【0027】図3の粉体除去装置においては、前記衝突
板10と筒状本体11の内周壁16との隙間、および、
前記排出筒部20aの隙間は、何れも約20mmとし
た。また、筒状本体11の高さは約850mmである。
当該粉体除去装置を用いて約260kg/Hrの割合で
PETチップ1aを処理した。この結果、図5の従来装
置で処理した後の原料PETチップ1aには、370p
pmの粉体7が付着していたのに対し、当該粉体除去装
置で処理したあとのPETチップ1aには、132pp
mの粉体7が付着していたに過ぎず、その差に当たる2
38ppmの粉体7を回収することができ、PETチッ
プ1a中への粉体7の混入を減少させることができた。In the powder removing apparatus shown in FIG. 3, a gap between the collision plate 10 and the inner peripheral wall 16 of the cylindrical main body 11 and
The gap between the discharge cylinders 20a was about 20 mm. The height of the cylindrical main body 11 is about 850 mm.
The PET chip 1a was processed at a rate of about 260 kg / Hr using the powder removing device. As a result, the raw material PET chip 1a processed by the conventional apparatus shown in FIG.
pm powder 7 was adhered to the PET chip 1a after being processed by the powder removal device,
m powder 7 only adhered, and the difference 2
38 ppm of the powder 7 could be recovered, and the mixing of the powder 7 into the PET chip 1a could be reduced.
【0028】一方、図4の粉体除去装置の場合にも、前
記衝突板10と前記内周壁16との隙間は、約20mm
とした。また、筒状本体11の高さ寸法は約1500m
mとした。当該粉体除去装置の場合も約260kg/H
rの割合でPETチップ1aを処理した。この結果、前
記従来の装置で処理した後の原料PETチップ1aに
は、370ppmの粉体7が付着していたのに対し、当
該粉体除去装置で処理したあとのPETチップ1aに
は、僅か56ppmの粉体7が付着していたに過ぎず、
その差に当たる314ppmの粉体7を回収することが
でき、PETチップ1a中への粉体7の混入を大幅に減
少させることができた。On the other hand, also in the case of the powder removing apparatus shown in FIG. 4, the gap between the collision plate 10 and the inner peripheral wall 16 is about 20 mm.
And The height of the cylindrical main body 11 is about 1500 m.
m. Approximately 260 kg / H
The PET chip 1a was processed at a rate of r. As a result, 370 ppm of powder 7 had adhered to the raw PET chip 1a after being processed by the conventional apparatus, whereas the PET chip 1a having been processed by the powder removing apparatus had a slight amount. Only 56 ppm of powder 7 had adhered,
314 ppm of the powder 7 corresponding to the difference could be collected, and the mixing of the powder 7 into the PET chip 1a could be greatly reduced.
【図1】本発明に係る粉体除去装置の使用例を示す説明
図FIG. 1 is an explanatory view showing an example of use of a powder removing device according to the present invention.
【図2】本発明に係る粉体除去装置を示す説明図FIG. 2 is an explanatory view showing a powder removing apparatus according to the present invention.
【図3】別実施形態に係る粉体除去装置を示す説明図FIG. 3 is an explanatory view showing a powder removing device according to another embodiment.
【図4】別実施形態に係る粉体除去装置を示す説明図FIG. 4 is an explanatory view showing a powder removing device according to another embodiment.
【図5】従来の粉体除去装置を示す説明図FIG. 5 is an explanatory view showing a conventional powder removing device.
1 搬送物 7 粉体 10 衝突板 10a 補助衝突板 11 筒状本体 12 分離室 13 落下供給路 13a 供給筒部 14 内側筒部材 16 筒状本体の内周壁 19 ガス流路 20 排出路 20a 排出筒部 22 外側筒部材 25b 衝突板の下面 DESCRIPTION OF SYMBOLS 1 Conveyed object 7 Powder 10 Collision plate 10a Auxiliary collision plate 11 Cylindrical main body 12 Separation chamber 13 Drop supply path 13a Supply cylindrical part 14 Inner cylindrical member 16 Inner peripheral wall of cylindrical main body 19 Gas flow path 20 Discharge path 20a Discharge cylindrical part 22 Outer cylinder member 25b Lower surface of collision plate
Claims (5)
て、前記搬送物から前記粉体を分離するための分離室を
内部形成する筒状本体を設け、 主に前記分離室の内部に対する前記搬送物の落下供給路
を形成する供給筒部を設け、 前記供給筒部の下方側には、前記搬送物を衝突させて前
記搬送物の表面に付着した前記粉体を飛散させるための
衝突板を設け、 前記衝突板の周辺部と前記筒状本体の内周壁との隙間に
は、前記搬送物の落下のみを許容し、前記飛散した粉体
は前記分離室内に吹き上げるべく、前記分離室内に流入
するガス流路を形成し、 前記吹き上げられた粉体を前記分離室から排出するため
の筒状の排出路を、前記供給筒部の外方側で同芯状に配
置して前記筒状本体内に設けてある表面付着粉体の除去
装置であって、 前記筒状の排出路は、前記供給筒部より大径に形成され
た筒状の隔壁部と前記筒状本体との間に形成されてお
り、 前記排出路の断面形状を、その延出方向に沿った何れの
位置においても略等しく形成してある表面付着粉体の除
去装置。1. A cylindrical main body which internally forms a separation chamber for separating a powder from the conveyed object by introducing a conveyed object having powder adhered to the periphery thereof is provided. A supply tube portion that forms a supply path for dropping the conveyed object with respect to the container; and a lower portion of the supply tube portion for colliding the conveyed object and scattering the powder attached to the surface of the conveyed object. A collision plate is provided. In the gap between the peripheral portion of the collision plate and the inner peripheral wall of the tubular main body, only the fall of the conveyed object is allowed, and the scattered powder is blown into the separation chamber. Forming a gas flow path to flow into the chamber, disposing a cylindrical discharge path for discharging the blown-up powder from the separation chamber, concentrically on the outer side of the supply cylinder part; a device for removing surface adhesion powder is provided in the tubular body, and discharge of the tubular The passage is formed between the cylindrical main body and the cylindrical partition wall formed to have a larger diameter than the supply cylinder, and the cross-sectional shape of the discharge passage may be any along the extending direction thereof. A device for removing powder adhering to the surface, which is formed almost equally at the position.
で構成してある請求項1に記載の表面付着粉体の除去装
置。2. The surface-attached powder according to claim 1, wherein the supply cylinder is formed of an inner cylinder, and the partition is formed of an outer cylinder having a diameter larger than that of the inner cylinder. Removal device.
てある請求項1または請求項2に記載の表面付着粉体の
除去装置。3. The apparatus for removing powder adhering to a surface according to claim 1, wherein an auxiliary collision plate is provided inside the supply cylinder.
衝突板を多段階に構成してある請求項1から3の何れか
に記載の表面付着粉体の除去装置。4. The apparatus for removing powder adhering to a surface according to claim 1, wherein the collision plate provided below the supply cylinder is configured in multiple stages.
錐面に構成してある請求項4に記載の表面付着粉体の除
去装置。5. The apparatus for removing powder adhering to a surface according to claim 4, wherein the lower surface of the multi-stage impact plate is formed as a downward conical surface.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP18962597A JP3236535B2 (en) | 1997-07-15 | 1997-07-15 | Removal device for powder adhering to surface |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP18962597A JP3236535B2 (en) | 1997-07-15 | 1997-07-15 | Removal device for powder adhering to surface |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH1128424A JPH1128424A (en) | 1999-02-02 |
JP3236535B2 true JP3236535B2 (en) | 2001-12-10 |
Family
ID=16244435
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP18962597A Expired - Fee Related JP3236535B2 (en) | 1997-07-15 | 1997-07-15 | Removal device for powder adhering to surface |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP3236535B2 (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10030705A1 (en) * | 2000-06-23 | 2002-01-03 | Hosokawa Micron Gmbh | Cyclone sifter with central installation |
DE10352525B9 (en) * | 2003-11-05 | 2009-07-23 | Neuman & Esser Gmbh Mahl- Und Sichtsysteme | cyclone separator |
WO2006075791A1 (en) * | 2005-01-13 | 2006-07-20 | Matsushita Electric Industrial Co., Ltd. | Dry washing device |
KR101487260B1 (en) * | 2013-03-19 | 2015-02-09 | 국방과학연구소 | Strip-ring real impactor |
-
1997
- 1997-07-15 JP JP18962597A patent/JP3236535B2/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
JPH1128424A (en) | 1999-02-02 |
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