JPH02261536A - Device for reforming powder surface - Google Patents
Device for reforming powder surfaceInfo
- Publication number
- JPH02261536A JPH02261536A JP1081796A JP8179689A JPH02261536A JP H02261536 A JPH02261536 A JP H02261536A JP 1081796 A JP1081796 A JP 1081796A JP 8179689 A JP8179689 A JP 8179689A JP H02261536 A JPH02261536 A JP H02261536A
- Authority
- JP
- Japan
- Prior art keywords
- powder
- particles
- child
- fixing
- film
- 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
- 239000000843 powder Substances 0.000 title claims abstract description 37
- 238000002407 reforming Methods 0.000 title 1
- 239000000463 material Substances 0.000 claims abstract description 19
- 239000002245 particle Substances 0.000 claims description 70
- 239000012190 activator Substances 0.000 claims description 20
- 230000004048 modification Effects 0.000 claims description 8
- 238000012986 modification Methods 0.000 claims description 8
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 238000007599 discharging Methods 0.000 claims description 2
- 230000003213 activating effect Effects 0.000 abstract description 4
- 239000012530 fluid Substances 0.000 description 8
- 230000015572 biosynthetic process Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 238000001994 activation Methods 0.000 description 3
- 230000005611 electricity Effects 0.000 description 3
- 230000003068 static effect Effects 0.000 description 3
- 239000004925 Acrylic resin Substances 0.000 description 2
- 229920000178 Acrylic resin Polymers 0.000 description 2
- 230000004913 activation Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000013341 scale-up Methods 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 239000003082 abrasive agent Substances 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 210000000078 claw Anatomy 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000002537 cosmetic Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000000635 electron micrograph Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Abstract
Description
【発明の詳細な説明】
［産業上の利用分野］
本発明は、化粧品、￥Ｉ′）体塗料、複写材料、医薬品
などにおいて使用する粉体の表面に他の粉体を付着させ
て新しい殿能をもたせるようにした粉体の表面改質装置
に関するものでおる。Detailed Description of the Invention [Industrial Application Field] The present invention is directed to the production of new deposits by attaching other powders to the surface of powders used in cosmetics, body paints, copying materials, pharmaceuticals, etc. The present invention relates to a device for surface modification of powder that has the ability to improve the surface of powder.
［従来の技術］
この種、粉体の表面改質装置として、特開昭６２−８３
０２９号公報をあげることができる（第９図参照）。[Prior art] This type of powder surface modification device is disclosed in Japanese Patent Application Laid-open No. 62-83.
No. 029 can be mentioned (see FIG. 9).
このものは第９図において、衝撃式粉砕機を用いて行な
うようにしたものである。This is shown in FIG. 9 and is carried out using an impact crusher.
この衝撃式粉砕機はケーシングａ内に回転軸すにより高
速回転する回転％ｃを設け、この回転盤Ｃの外周に多数
の衝撃ピンｄ＠設け、前記衝撃ピンｄの最外周軌道面に
沿い、かつそれに対して一定の空間に置いて周設された
衝突リングｅからなる。This impact type crusher is provided with a rotating shaft (c) that rotates at high speed by a rotating shaft in a casing (a), a large number of impact pins (d@) are provided on the outer periphery of this rotary disk (C), and along the outermost orbital surface of the impact pins (d), and a collision ring e disposed around it at a constant distance.
なお、ｆは開閉弁、Ｑは衝撃室、ｈは循環回路である。In addition, f is an on-off valve, Q is a shock chamber, and h is a circulation circuit.
そして、開閉弁ｆを閉じた状態で回転盤Ｃを回転させる
と、この回転盤Ｃの回転に伴って気流が生じ、この気流
の遠心力に基づくファン効果によって衝撃室Ω、循環回
路りを巡って自己循環の流れが形成される。When the turntable C is rotated with the on-off valve f closed, an airflow is generated as the turntable C rotates, and a fan effect based on the centrifugal force of this airflow circulates around the shock chamber Ω and the circulation circuit. A self-circulating flow is formed.
一方、母粒子となる材料と子粒子となる材料をミキサー
ｉに所定配合比で投入し、ここで強力な混合を行なうと
、両材料とも活性化し、この活性化に伴なう静電気によ
り母粒子の表面に子粒子が付着する。On the other hand, when the material that will become the mother particle and the material that will become the child particle are put into a mixer i at a predetermined mixing ratio and mixed vigorously, both materials will be activated, and the static electricity that accompanies this activation will cause the mother particle to child particles adhere to the surface of
この母粒子の表面に子粒子を付着させた被処理粉体を貯
槽し、計量フィーダに、ホッパｅを経て前記衝撃式粉砕
機の気流循環サイクル中に投入する。The powder to be treated, in which the child particles are attached to the surface of the mother particles, is stored in a tank and fed into a metering feeder through the hopper e during the air circulation cycle of the impact crusher.
投入された被処理粉体は、衝撃ピンｄによって打撃作用
を受け、ざらに衝突リングｅに衝突して母粒子の表面に
子粒子が圧縮作用を受ける。The injected powder to be treated is subjected to a striking action by the impact pin d, and roughly collides with the collision ring e, so that the child particles are compressed on the surface of the mother particle.
次いで、該粉体は循環ガスとともに循環回路りを循環し
て再び衝撃室ｑに戻り、再度打撃作用を受ける。Next, the powder is circulated through the circulation circuit together with the circulating gas, returns to the impact chamber q, and is subjected to the impact action again.
このような衝撃作用が何回も繰り返されるうちに子粒子
は母粒子の表面へ埋設または強固に固着される。As such impact action is repeated many times, the child particles become embedded or firmly adhered to the surface of the mother particle.
以上の固着作業が終了すると、開閉弁ｆを開き、固定化
された粉体を排出する。When the above fixing work is completed, the on-off valve f is opened and the fixed powder is discharged.
排出された粉体は、排風機ｐの吸引力によって、サイク
ロンｍ、パックフィルタｎに誘導された後、補集される
。The discharged powder is guided to a cyclone m and a pack filter n by the suction force of the exhaust fan p, and then collected.
［発明が解決しようとする課題］
しかしながら、前記衝撃式粉砕機は、回転盤Ｃと衝突リ
ングｅとの間の空間において固定・成膜化されるのであ
るが、直径が大きくなれば有効に働く空間は外周部のみ
でそれ以外の部分は有効な衝撃空間として作用しない。[Problems to be Solved by the Invention] However, the impact type crusher is fixed and formed into a film in the space between the rotary disk C and the collision ring e, but it works more effectively if the diameter is larger. The space is limited to the outer periphery and the rest does not function as an effective impact space.
このため、有効空間体積は直径の１乗でしか増加せず、
スケールアップしにくい問題がおる。Therefore, the effective space volume increases only by the first power of the diameter,
There are problems that make it difficult to scale up.
また、該衝撃式粉砕機において、大型化に際して、粒子
に同一の遠心力を作用させるには、回転速度を上げなけ
ればならない。このように回転盤Ｃの回転数を上げると
、機械強度上の問題が生じるため、大型化には限界があ
る。In addition, when increasing the size of the impact type crusher, the rotation speed must be increased in order to apply the same centrifugal force to the particles. Increasing the rotational speed of the rotary disk C in this way causes problems in terms of mechanical strength, so there is a limit to increasing the size of the rotary disk C.
さらに、衝撃式粉砕機は回転盤Ｃを内蔵するものである
ため、材料（銘柄）切替時における１吊除が困難でおる
。Furthermore, since the impact type crusher has a built-in rotary disk C, it is difficult to remove one load when changing materials (brands).
本発明は、上記のような従来技術の問題点に鑑みてなさ
れたものであり、スケールアップが容易かつ１吊除が簡
単な粉体の表面改質装置を提供することを目的とする。The present invention has been made in view of the problems of the prior art as described above, and an object of the present invention is to provide a powder surface modification device that can be easily scaled up and can be easily removed once.
［課題を解決するための手段］
上記目的を達成するために、本発明の粉体の表面改質装
置は、所定の配合比からなる母粒子となる材料と子粒子
となる材料を混合して母粒子に子粒子を付着させるジェ
ット噴流式混合活性機と、母粒子に子粒子が付着した被
処理粉体を固定・成膜するサイクロン式固定・成膜機と
、該固定・成膜機からの被処理粉体を前記混合活性機に
循環又は排出する搬送手段とよりなるものである。[Means for Solving the Problems] In order to achieve the above object, the powder surface modification device of the present invention mixes a material that will become a mother particle and a material that will become a child particle in a predetermined mixing ratio. A jet jet type mixing activator that attaches child particles to the mother particles, a cyclone type fixing and film forming machine that fixes and forms a film on the powder to be treated with the child particles attached to the mother particles, and the fixing and film forming machine. and a conveying means for circulating or discharging the powder to be treated into the mixing activator.
そして、−前記混合活性機は円筒状本体の底部を円堆形
にすることが望ましい。and - it is preferable that the bottom of the cylindrical body of the mixing activator be formed into a cylindrical shape.
また、前記混合活性機は円筒状本体の下部周壁に大気吸
入孔を設けることかできる。Further, the mixing activator may be provided with an air intake hole in the lower peripheral wall of the cylindrical body.
［作用］
母粒子となる材料と子粒子となる材料を所定の配合比で
混合活性機に投入する。[Operation] Materials that will become the mother particles and materials that will become the child particles are put into a mixing activator at a predetermined mixing ratio.
該混合活性機内の両材料はジェット噴流により、旋回と
上下動を繰り返し撹拌・混合される。Both materials in the mixing activator are stirred and mixed by a jet stream by repeating swirling and vertical movement.
すなわち、ジェット噴流の速度エネルギーが母粒子に伝
わり、粒子間同志が摩擦・衝突して母粒子の表面が活性
化し、ひいては静電気を帯び、この結果、母粒子の表面
に子粒子が付着する。That is, the velocity energy of the jet flow is transmitted to the mother particles, and the particles rub and collide with each other, activating the surface of the mother particle, which in turn becomes charged with static electricity, and as a result, the child particles adhere to the surface of the mother particle.
母粒子に子粒子を付着した被処理粉体はサイクロン式固
定・成膜機に高流速で流入する。The powder to be treated, with child particles attached to the mother particles, flows into a cyclone fixation/film forming machine at a high flow rate.
流入した被処理粉体は、該固定・成膜機の内壁に大きな
遠心力を受けて押しつけられこの内壁に沿って旋回しつ
つ下方に移動していく間に、固定・成膜化される。The inflowing powder to be processed is pressed against the inner wall of the fixing and film-forming machine by a large centrifugal force, and is fixed and formed into a film while rotating and moving downward along the inner wall.
次いで、固定・成膜化された被処理粉体は、搬送手段を
経て前記混合活性機にもどされ、再び活性化され、母粒
子表面の未付着部分に子粒子を付着させる。Next, the powder to be treated, which has been fixed and formed into a film, is returned to the mixing activator via a conveying means, and is activated again, so that the child particles are attached to the unattached portions of the surface of the mother particles.
以上の工程を少くとも１０回以上繰り返すことによって
、母粒子の表面に子粒子が確実に付着しかつ全表面に固
定・成膜される。By repeating the above steps at least 10 times, the child particles are reliably attached to the surface of the mother particle and are fixed and formed into a film on the entire surface.
このようにして両粒子の固定・成膜が終了した被処理粉
体は製品として搬送手段を経て取り出す。The powder to be processed, in which both particles have been fixed and film-formed, is taken out as a product via a conveyance means.
そして、円筒状本体の底部を円錐形とすることによって
、上下動する粒子は該円鉗面を流下し、ジェット噴流に
確実に巻き込まれるのでおる。By making the bottom of the cylindrical body conical, the particles moving up and down flow down the circular claw surface and are reliably caught up in the jet stream.
また、大気吸入孔より空気を吸引することによって、ジ
ェット噴流体の使用量を減らすことができる。Furthermore, by suctioning air through the air suction hole, the amount of jet fluid used can be reduced.
［実施例］ 実施例について図面を参照して説明する。[Example] Examples will be described with reference to the drawings.
第１図〜第５図において、母粒子となる材料のタンク１
及び子粒子となる材料のタンク２からの両材料は、フィ
ードホッパ３．定但フィーダ４゜接続シュート５を経て
、混合活性機６に供給されるようになっている。In Figures 1 to 5, tank 1 of the material that will become the base particle
Both the materials from the tank 2 and the material to become child particles are fed to the feed hopper 3. The feeder is supplied to a mixing activator 6 via a 4° connecting chute 5.
前記混合活性機６は、下部が円錐状の下部８を有し、上
部に排出口９を有する円筒上本体７からなり、該本体７
の下部周壁に高圧流体発生１１１０からの高圧流体を噴
出する噴射ノズル１１を接線方向に向くように設けると
共に大気吸引孔１２を形成したものである。The mixing activator 6 consists of a cylindrical main body 7 having a conical lower part 8 and a discharge port 9 in the upper part.
An injection nozzle 11 for ejecting high-pressure fluid from a high-pressure fluid generator 1110 is provided in a tangential direction on the lower peripheral wall of the pump, and an atmospheric suction hole 12 is formed.
前期混合活性償６からの被処理粉体は固定・成膜機１３
に導かれるのである。The powder to be processed from the previous mixing activation process 6 is transferred to the fixing/film forming machine 13.
It is guided by.
この固定・成膜機１３は、上部体１４ａと、下部体１４
ｂからなる上下方向に向いた筒状本体１４と、該本体１
４の下部に設けた排出機１５と、上部体１４ａの外側に
設けた加熱体１６とよりなる。This fixing/film forming machine 13 has an upper body 14a and a lower body 14.
a vertically oriented cylindrical body 14 consisting of b;
4, and a heating body 16 provided outside the upper body 14a.
前記上部体１４ａの内面は上から下に向って末広がりと
なった円錐筒状となっている。The inner surface of the upper body 14a has a conical cylindrical shape that widens from top to bottom.
１７は上部体１４ａの上部にあって接線方向に向いた入
口部、１８は円筒状本体１４と同心上に設けた排出管で
ある。１９は前記排出管１８と接続した集塵機で、その
下部に排出機２０を有する。Reference numeral 17 is an inlet portion located at the upper part of the upper body 14a and oriented in the tangential direction, and reference numeral 18 is a discharge pipe provided concentrically with the cylindrical main body 14. 19 is a dust collector connected to the discharge pipe 18, and has a discharge machine 20 at the bottom thereof.
２１は吸引ブロア、２２は前記排出機１５及び２０の下
部に位置する正逆式コンベヤ等の搬送手段であり、例え
ば正転によって、排出機１５及び２０からの被処理粉体
を戻り人口２３を経て混合活性機６に戻す。また、逆転
によって製品を得る。21 is a suction blower, and 22 is a transport means such as a forward/reverse conveyor located below the dischargers 15 and 20, which returns the powder to be processed from the dischargers 15 and 20 by forward rotation, for example. After that, it is returned to the mixing activator 6. You can also obtain the product by reversing.
２７は自動温度調節機でおる。27 is controlled by an automatic temperature controller.
次に、実施例の作用を説明すると、高圧流体発生１１０
からの高圧流体を噴出ノズル１１より円筒状本体７内に
噴出せしめる（Ｄの矢印方向）とともに大気吸入口１２
がら空気が吸引（Ｃの矢印方向）される。この状態で、
投入された母粒子と子粒子は前記本体７内に噴出された
ジェット噴流により激しく混合・撹拌される。これによ
って両粒子は円筒状本体７内の内壁を旋回しながら上昇
し、おる高さに達するとＢの矢印方向に下降する。Next, to explain the operation of the embodiment, the high pressure fluid generation 110
The high-pressure fluid is ejected from the ejection nozzle 11 into the cylindrical body 7 (in the direction of the arrow D), and the air inlet 12
Air is sucked in (in the direction of arrow C). In this state,
The input mother particles and child particles are vigorously mixed and agitated by the jet stream ejected into the main body 7. As a result, both particles rise while swirling on the inner wall of the cylindrical body 7, and when they reach a certain height, they descend in the direction of the arrow B.
この運動を繰り返す間に活性化し、この活性化によって
静電気を帯びるため、母粒子の表面に子粒子が付着する
こととなる。While repeating this movement, the particles become activated, and as a result of this activation they become charged with static electricity, the child particles adhere to the surface of the mother particles.
子粒子がある程度付着した母粒子は、この粒子の摩擦抵
抗が小さくなるため、旋回しながらＡの矢印方向に上昇
し、排出口９を経て、入口部１７から固定・成膜機１３
内に流入する。このとき、入口部１７の風速は高速でお
ることから、被処理粉体は加速されて高速となって大き
な遠心力を受け、上部体１４ａの内壁に激しく衝突した
後、自転と旋回する。この過程で子粒子は膜化するか、
母粒子に打ち込まれた状態になり、下部体’１４ｂを経
て、Ｆの矢印方向に下降して下部にたまる。Since the frictional resistance of the mother particles to which some child particles have adhered is reduced, they rise in the direction of the arrow A while rotating, pass through the discharge port 9, and exit from the inlet section 17 to the fixing/film forming machine 13.
flow inside. At this time, since the wind speed at the inlet portion 17 is high, the powder to be treated is accelerated to a high speed and subjected to a large centrifugal force, collides violently with the inner wall of the upper body 14a, and then rotates on its axis. In this process, the child particles become a film, or
It is in a state of being driven into the base particle, passes through the lower body '14b, descends in the direction of the arrow F, and accumulates at the lower part.
一方、排気はＥの矢印方向に転換して排気管」８を経て
排出される。On the other hand, the exhaust gas is diverted in the direction of the arrow E and is discharged through the exhaust pipe ``8''.
以上のようにしてなる被処理粉体は、おるものは完全に
固定化又は成膜化するが、不完全なものもある。これら
すべての粉体は排出機１５から搬送手段２２を経て戻り
人口２３から混合活性機６に戻され、再び、ジェット噴
流により活性化され、該粉体（母粒子）の外表面の未付
着部分に子粒子が付着される。このように付着と固定・
成膜を交互に何回も繰り返した後、搬送手段２２を経て
取り出す。Most of the powder to be treated as described above is completely fixed or formed into a film, but some are incompletely fixed. All of these powders are returned from the discharger 15 via the conveyance means 22 and returned to the mixer activator 6 from the feeder 23, where they are activated again by the jet flow, and the unattached portions of the outer surface of the powder (base particles) are A child particle is attached to the particle. In this way, attachment and fixation
After the film formation is alternately repeated many times, the film is taken out via the transport means 22.
なお、上部体１４ａを下方向に広がる円錐形にすること
によって粒子の通過を容易にする。つまり、固定・成膜
化が進むに連れて、被処理粉体の転がり摩擦抵抗が小さ
くなるので、排出速度が大きくなり、この結果、処理能
力を上げることができる。主として成膜化の場合に適し
ている。Note that by forming the upper body 14a into a conical shape that expands downward, particles can easily pass through. In other words, as the fixation and film formation progresses, the rolling friction resistance of the powder to be treated decreases, so the discharge speed increases, and as a result, the processing capacity can be increased. It is mainly suitable for film formation.
また、必要により、上部体１４ａに設けた加熱体１６に
より、子粒子を加熱して軟化させ、膜化を促進すること
ができる。Further, if necessary, the child particles can be heated and softened by the heating body 16 provided in the upper body 14a to promote film formation.
高圧流体噴射ノズル１１及び大気吸入孔１２は複数個も
受けてもよい。A plurality of high-pressure fluid injection nozzles 11 and atmospheric suction holes 12 may be provided.
大気吸入孔１２は高圧流体の使用風量を少なくすること
と製品を取り出すとき該製品を壊さないようにするため
である。また、加熱された粒子の冷却作用も有する。The purpose of the atmosphere suction hole 12 is to reduce the amount of high-pressure fluid used and to prevent the product from being damaged when it is taken out. It also has a cooling effect on heated particles.
固定・成膜機１３の入口部１７の入口風速を２０〜１２
０ｍ／秒とすることによって被処理粉体に大きな遠心力
を作用させることができる。The inlet wind speed of the inlet section 17 of the fixed film forming machine 13 is set to 20 to 12
By setting the speed to 0 m/sec, a large centrifugal force can be applied to the powder to be processed.
系全体を正圧運転するときは吸引ブロア２１は省略され
る。When the entire system is operated under positive pressure, the suction blower 21 is omitted.
第６図〜第７図は固定・成膜機の異なる実施例でおり、
但し、前記実施例と同一部分については同一符号を示し
説明を省略する。Figures 6 and 7 show different embodiments of fixing and film forming machines,
However, the same parts as those in the previous embodiment are denoted by the same reference numerals, and the description thereof will be omitted.
２４は上部体１４ａ内に配設した山形状ライナである。24 is a chevron-shaped liner disposed within the upper body 14a.
また、下部体１４ｂは上から下に向って逆円錐筒状であ
る。Further, the lower body 14b has an inverted conical cylindrical shape from top to bottom.
被処理粉体は山形状ライナ２４に衝突しながら旋回する
ので、特に、子粒子が母粒子より硬い場合でもムラなく
均一に固定化出来る。また、母粒子が偏平な場合でも均
一に固定・成膜化できる。Since the powder to be treated rotates while colliding with the mountain-shaped liner 24, even if the child particles are harder than the mother particles, they can be fixed evenly and uniformly. Further, even if the base particles are flat, they can be fixed and formed into a film uniformly.
第８図は固定・成膜機の異なる実施例であり、但し、前
記実施例と同一部分については同一符号を示し説明を省
略する。FIG. 8 shows a different embodiment of the fixing/film forming machine, however, the same parts as in the previous embodiment are denoted by the same reference numerals and the explanation thereof will be omitted.
２５は入口部１７にピン２６を介して設けたダンパーで
おる。25 is a damper provided at the inlet portion 17 via a pin 26.
このダンパー２５により入口部１７の風速を調節するよ
うになっている。特に、高圧流体としてＮ２ガスや水蒸
気等を利用して処理風量が限定されるような場合でも必
要風量を確保できる利点がある。This damper 25 is used to adjust the wind speed at the inlet section 17. In particular, there is an advantage that the required air volume can be secured even when the processing air volume is limited by using N2 gas, water vapor, or the like as the high-pressure fluid.
（実験例）
粒径５〜６μのアクリル系樹脂からなる母粒子に粒径０
．０５μのアクリル系樹脂からなる子粒子を下記の条件
で、ジェット噴流式混合活性機に投入して撹拌・混合し
た後、サイクロン式固定・成膜機に投入して固定・成膜
する工程を多数回繰り返して、表面改質粉体を得た。こ
れを第９図に示す。同図に示すように子粒子が母粒子の
表面を完全に膜化していることが判る。(Experiment example) A particle size of 0 is added to the base particles made of acrylic resin with a particle size of 5 to 6 μm.
．． Under the following conditions, child particles made of acrylic resin of 0.05μ are put into a jet jet mixing activator, stirred and mixed, and then put into a cyclone fixation and film forming machine to fix and form a film. The process was repeated several times to obtain a surface-modified powder. This is shown in FIG. As shown in the figure, it can be seen that the child particles completely form a film on the surface of the mother particle.
処理条件＝（イ）ノズル元圧 ５に’ｊ／ｃｒＡ（ロ）
投入総量 ５００ｇ
（ハ）空気温度 ６０’Ｃ
（ニ）処理時間 ４０分
［発明の効果］
本発明は、以上のように構成されるので、以下に記載さ
れるような効果を奏する。Processing conditions = (a) Nozzle source pressure 5 to 'j/crA (b)
Total input amount: 500 g (c) Air temperature: 60'C (d) Processing time: 40 minutes [Effects of the Invention] Since the present invention is configured as described above, it produces the effects as described below.
ジェット噴流式混合活性機とサイクロン式固定・成膜機
を搬送手段を介して組合せたので、子粒子の母粒子への
付着と子粒子の母粒子に対する固定・成膜が異なる場所
で交互に繰り返される結果、母粒子の外表面を子粒子で
ムラなく完全に被覆することができ、極めて良質な改質
品を得ることかできる。Since a jet jet mixing activator and a cyclone fixing/film forming machine are combined via a conveyance means, the attachment of child particles to the mother particles and the fixation/film formation of child particles to the mother particles are alternately repeated at different locations. As a result, the outer surface of the mother particles can be evenly and completely covered with child particles, making it possible to obtain a modified product of extremely high quality.
また、ジェット噴流式混合活性機及びサイクロン式固定
・成膜機を採用したので、装置のスケールアップが容易
でおるとともに掃除が簡単でおる。In addition, a jet-type mixing activator and a cyclone-type fixing/film forming machine are used, making it easy to scale up the equipment and to clean it easily.
また、処理する材料が金属粉や摩耗性の必る扮末であっ
てもコンタミの恐れが著るしく少ない。Furthermore, even if the material to be treated is metal powder or other abrasive materials, there is significantly less risk of contamination.
さらに、処理する材料が高温又は系全体が正圧（５００
ｍｑ以上）でおっても適用でき、汎用性大である。Additionally, the material to be treated may be at high temperatures or the entire system may be under positive pressure (500
mq or more) and is highly versatile.
第１図は本発明の実施例を示す全体概略図、第２図は本
発明の混合活性機の一部切欠正面図、第３図は第２図の
Ｉ−Ｉ線断面図、第４図は本発明の固定・−成膜機の一
部切欠正面図、第５図は本発明の固定・成膜機の平面図
、第６図は本発明の固定・成膜機の他の実施例を示す一
部切欠正面図、第７図は第６図の■−■線の部分断面図
、第８図は本発明の固定・成膜機の他の実施例を示す断
面図、第９図は表面改質後の製品の電子顕微鏡写真で、
同図（１）は５０００倍、同図（２）は１００００倍の
ものを示す、第１０図は従来例を示す概略図である。
６・・・・・・ジェット噴流式混合活性機１３・・・・
・・サイクロン式固定・成膜機８・・・・・・円錐形
１２・・・・・・大気吸入孔
２２・・・・・・搬送手段Fig. 1 is an overall schematic diagram showing an embodiment of the present invention, Fig. 2 is a partially cutaway front view of the mixing activator of the present invention, Fig. 3 is a sectional view taken along line I-I in Fig. 2, and Fig. 4 is a partially cutaway front view of the fixing/film forming machine of the present invention, FIG. 5 is a plan view of the fixing/film forming machine of the present invention, and FIG. 6 is another embodiment of the fixing/film forming machine of the invention. FIG. 7 is a partial sectional view taken along the line ■-■ in FIG. 6, FIG. 8 is a sectional view showing another embodiment of the fixing/film forming machine of the present invention, and FIG. 9 is an electron micrograph of the product after surface modification.
FIG. 10 is a schematic diagram showing a conventional example. FIG. 10 (1) shows a magnification of 5000 times, FIG. 10 (2) shows a magnification of 10,000 times. 6...Jet type mixing activator 13...
...Cyclone type fixing/film forming machine 8...Conical shape 12...Atmospheric suction hole 22...Transportation means
Claims (1)
となる材料を混合して母粒子に子粒子を付着させるジェ
ット噴流式混合活性機と、母粒子に子粒子が付着した被
処理粉体を固定・成膜するサイクロン式固定・成膜機と
、該固定・成膜機からの被処理粉体を前記混合活性機に
循環又は排出する搬送手段とよりなることを特徴とする
粉体の表面改質装置。（２）前記混合活性機の円筒状本
体の底部が円錐形である請求項１記載の粉体の表面改質
装置。 （３）前記混合活性機の円筒状本体の下部周壁に大気吸
入孔を設けた請求項１又は２記載の粉体の表面改質装置
。[Scope of Claims] (1) A jet jet type mixing activator that mixes a material that will become a mother particle and a material that will become a child particle in a predetermined mixing ratio and attaches the child particles to the mother particle; Consists of a cyclone type fixing/film forming machine that fixes and forms a film on the powder to be treated to which particles are attached, and a conveying means for circulating or discharging the powder to be processed from the fixing/film forming machine to the mixing activator. A powder surface modification device characterized by: (2) The powder surface modification device according to claim 1, wherein the bottom of the cylindrical main body of the mixing activator is conical. (3) The powder surface modification apparatus according to claim 1 or 2, wherein an atmospheric air suction hole is provided in the lower peripheral wall of the cylindrical main body of the mixing activator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1081796A JPH02261536A (en) | 1989-03-31 | 1989-03-31 | Device for reforming powder surface |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1081796A JPH02261536A (en) | 1989-03-31 | 1989-03-31 | Device for reforming powder surface |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02261536A true JPH02261536A (en) | 1990-10-24 |
Family
ID=13756454
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1081796A Pending JPH02261536A (en) | 1989-03-31 | 1989-03-31 | Device for reforming powder surface |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02261536A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0627668A1 (en) * | 1993-05-19 | 1994-12-07 | Kao Corporation | Nonmagnetic one-component toner and method for producing the same |
| JP2014006525A (en) * | 2012-06-26 | 2014-01-16 | Xerox Corp | Method of producing dry toner particles having high circularity |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6283029A (en) * | 1985-10-07 | 1987-04-16 | Nara Kikai Seisakusho:Kk | Method and apparatus for surface modification of solid particle |
| JPS6287237A (en) * | 1985-10-11 | 1987-04-21 | Miyoshi Kasei:Kk | Surface treated powders and its preparation |
-
1989
- 1989-03-31 JP JP1081796A patent/JPH02261536A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6283029A (en) * | 1985-10-07 | 1987-04-16 | Nara Kikai Seisakusho:Kk | Method and apparatus for surface modification of solid particle |
| JPS6287237A (en) * | 1985-10-11 | 1987-04-21 | Miyoshi Kasei:Kk | Surface treated powders and its preparation |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0627668A1 (en) * | 1993-05-19 | 1994-12-07 | Kao Corporation | Nonmagnetic one-component toner and method for producing the same |
| JP2014006525A (en) * | 2012-06-26 | 2014-01-16 | Xerox Corp | Method of producing dry toner particles having high circularity |
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