JP2017185426A - Separator for powder - Google Patents
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- JP2017185426A JP2017185426A JP2016074508A JP2016074508A JP2017185426A JP 2017185426 A JP2017185426 A JP 2017185426A JP 2016074508 A JP2016074508 A JP 2016074508A JP 2016074508 A JP2016074508 A JP 2016074508A JP 2017185426 A JP2017185426 A JP 2017185426A
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Abstract
Description
本発明は、粒体やペレット（プラスチックペレット等）などから、該粒体，ペレットに付着，混入している粉体やフロス（絹糸のような細い糸状のゴミ）などを分離する装置に関する。 The present invention relates to an apparatus for separating powder, floss (fine thread-like dust such as silk thread) and the like adhering to and mixing with granules and pellets from granules and pellets (plastic pellets, etc.).
空気を旋回上昇させて軽い分離対象物を上部に排出し、製品を重量により落下させるようにした方式の分離装置が実用に供されている。この分離装置は、プラスチックペレットからフロスを除去したり，破砕品，造粒品から微粉を分離したり、さらには穀類，食品などから異物を分離，除去することなどに用いられる。
本件発明者は高い分離精度を持つこの種の分離装置を既に提案し実施している（特許文献１）。
まず、図５を用いてこの分離装置の構成および動作を説明する。
分離装置は空気と粒体および粉体等を吸い込み（あるいは吹き込んで）分離を行ない（１次空気利用）、その下方で２次空気を吹き込み、さらには完全な分離を実現するために、２次空気送出手段の下から３次空気を吹き込むように構成されている。
A separation apparatus of a type in which air is swirled and lifted to discharge a light separation object to the top and the product is dropped by weight has been put to practical use. This separation device is used to remove floss from plastic pellets, to separate fine powder from crushed products and granulated products, and to separate and remove foreign substances from cereals and foods.
The present inventor has already proposed and implemented this type of separation apparatus having high separation accuracy (Patent Document 1).
First, the configuration and operation of this separation apparatus will be described with reference to FIG.
The separation device sucks (or blows in) air, granules, and powders (uses primary air), blows secondary air underneath, and in order to achieve complete separation, a secondary is used. It is comprised so that tertiary air may be blown from under the air sending means.
図５において、円筒部１の壁内面に開口する接線導入管４が接続されている。接線導入管４はその中心軸が円筒部１の内壁の接線に平行で、水平またはやや上向きに接続されている。１次空気（Ｉ）が形成する気流は管内壁に沿って上方向に向かって旋回しようとする。しかしながら２次空気用送風機６から２次空気吹込室５に２次空気を導入しているため、円筒部１の中心の気流は全体として上昇気流となる。 In FIG. 5, a tangential introduction pipe 4 that opens to the wall inner surface of the cylindrical portion 1 is connected. The center axis of the tangential introduction pipe 4 is parallel to the tangent of the inner wall of the cylindrical portion 1 and is connected horizontally or slightly upward. The air flow formed by the primary air (I) tends to swirl upward along the inner wall of the tube. However, since the secondary air is introduced from the secondary air blower 6 into the secondary air blowing chamber 5, the airflow at the center of the cylindrical portion 1 becomes a rising airflow as a whole.
円筒部１はその上部に、排気管２を有している。排気管２には、排気用送風機７が接続されており、吸引方式で空気と粉体等１６は円筒部１の上部から引き出される。
排気管２は、円筒部１で気流の旋回方向とは逆方向に向かって開口している（図２参照）。接線導入管４にはホッパ１０から、粉体等を含む粒体が輸送管９を介して供給される。
The cylindrical portion 1 has an exhaust pipe 2 at the top thereof. An exhaust fan 7 is connected to the exhaust pipe 2, and air, powder, and the like 16 are drawn from the upper part of the cylindrical portion 1 by a suction method.
The exhaust pipe 2 opens in the direction opposite to the swirl direction of the airflow in the cylindrical portion 1 (see FIG. 2). Granules containing powder and the like are supplied from the hopper 10 to the tangential introduction pipe 4 through the transport pipe 9.
円筒部１の下端には円錐筒部３が配置されている。この円錐筒部３の下端開口と下側の下部円筒部１３との間にスリットが形成され、このスリットは２次空気吹込室５に囲まれている。２次空気吹込室５から、スリットを介して２次空気（II）がスタビライザ１２の斜面に向けて吹き込まれる。スタビライザ１２の鍔の部分が粉体等の吹き上げを助ける。また、２次空気吹込手段の下方から、３次空気（III）を上向きに吹き込み落下しようとする粉体等１６を吹き上げる。スタビライザ１２の下の下部円筒部１３には３次空気用送風機１８が配置されている。 A conical cylinder portion 3 is disposed at the lower end of the cylindrical portion 1. A slit is formed between the lower end opening of the conical cylinder portion 3 and the lower lower cylindrical portion 13, and the slit is surrounded by the secondary air blowing chamber 5. Secondary air (II) is blown from the secondary air blowing chamber 5 toward the slope of the stabilizer 12 through a slit. The heel portion of the stabilizer 12 helps blow up the powder and the like. Further, from the lower side of the secondary air blowing means, the tertiary air (III) is blown upward, and the powder 16 or the like to be dropped is blown up. A tertiary air blower 18 is disposed in the lower cylindrical portion 13 below the stabilizer 12.
２次空気吹込室５には２次空気用送風機６が接続され、スリットを介して２次空気が全周から容器内に吹き込まれる。下部円筒部１３の下端にはエアロッカ排出機を形成するロータリーバルブ８が設けられている。ロータリーバルブ８は気密を保って回転し、粒体１５のみを排出する。 A secondary air blower 6 is connected to the secondary air blowing chamber 5, and secondary air is blown into the container from the entire circumference through a slit. A rotary valve 8 forming an air rocker discharge machine is provided at the lower end of the lower cylindrical portion 13. The rotary valve 8 rotates in an airtight manner and discharges only the granules 15.
粒体に混じっている粉体等はつぎのようなステップによって分離される。
（１次分離ステップ）分離対象である粉体等を含む粒体は、ホッパ１０から輸送管９を介して供給され、吸入された１次空気（Ｉ）と共に円筒部１の内部の、円筒内壁面に沿って接線方向かつ水平、またはやや上向きに導入され、１次分離ステップが開始される。
粒体中に混じっている粒体の一部と粉体等の大部分が旋回上昇気流によってその排気管２の入口開口２ａ（図２参照）に導かれる。粒体１５は、自重で下方の円錐筒部３に落下する。
The powder and the like mixed in the granules are separated by the following steps.
(Primary Separation Step) Granules containing the powder to be separated are supplied from the hopper 10 through the transport pipe 9 and are taken into the cylinder inside the cylindrical portion 1 together with the sucked primary air (I). Introduced tangentially and horizontally or slightly upward along the wall surface, the primary separation step is started.
Part of the particles and most of the powder and the like mixed in the particles are guided to the inlet opening 2a (see FIG. 2) of the exhaust pipe 2 by the swirling updraft. The granular material 15 falls to the conical cylinder part 3 below by its own weight.
（２次分離ステップ）１次分離ステップで下方の円錐筒部３に落下してくる粒体１５に対し、円錐筒部３の下部空間にスリットから高速の２次空気を吹き込んで粒体に付着している粉体を剥離し、更に残存する粉体等を１次分離ステップが行なわれる円筒部空間に吹き上げる。
（３次分離ステップ）３次空気（III）の導入によりスタビライザ１２の鍔と下側の下部円筒部１３の内径管から落下しようとする粉体等１６を吹き上げる。粒体１５はさらに落下する。
（搬出ステップ）粉体等が除去された粒体１５は、円錐筒部３の下端からさらに下部円筒部１３を通過して落下し、下端排出部からロータリーバルブ８の動作により連続的に取り出される。
(Secondary separation step) High-speed secondary air is blown into the lower space of the conical cylinder part 3 from the slit to the granule 15 falling to the lower conical cylinder part 3 in the primary separation step and adheres to the granule. The remaining powder is peeled off, and the remaining powder is blown up into the cylindrical space where the primary separation step is performed.
(Tertiary separation step) By introducing the tertiary air (III), powder 16 or the like to be dropped from the cage 12 of the stabilizer 12 and the inner diameter tube of the lower cylindrical portion 13 on the lower side is blown up. The granules 15 further fall.
(Unloading step) The granular material 15 from which the powder and the like are removed drops from the lower end of the conical cylinder portion 3 through the lower cylindrical portion 13 and is continuously taken out from the lower end discharge portion by the operation of the rotary valve 8. .
さて、この分離装置は２次空気の高速ブローと、３次空気吹き上げにより、製品の高い分離回収率で粉体等を分離排除する効果を得ている。しかしながら、円筒体の上部から落下してくる粒体の２次空気による吹き込みは、スタビライザの鍔を介して粒体を真上に飛ばしているため、粒体の中には円筒体の最頂部付近まで巻き上がり、排気管より粉体等とともに排気されてしまうものがあった。粉体等の高い分離回収率を得ているものの、製品にする粒体のロスが少なからず発生するという問題があった。 Now, this separation device has an effect of separating and removing powders and the like with a high product separation and recovery rate by high-speed secondary air blow and tertiary air blow-up. However, blowing in the secondary air of the particles falling from the upper part of the cylinder causes the particles to fly right above the stabilizer cage, so there are some particles near the top of the cylinder. Some of them were rolled up and exhausted along with the powder from the exhaust pipe. Although a high separation / recovery rate for powders and the like has been obtained, there is a problem in that there is a considerable loss of granules to be produced.
本発明の目的は、粒体やペレットから粉体，フロスなどを分離する上記のような分離装置において、排気管から粉体やフロスとともに排出される粒体やペレットを極力少なくして粒体やペレットの回収効率を向上させるとともに装置自体を小形化することができる、粉体等の分離装置を提供することにある。 An object of the present invention is to provide a separating apparatus as described above for separating powder, floss, etc. from granules and pellets, by reducing the number of granules and pellets discharged together with the powder and floss from the exhaust pipe as much as possible. An object of the present invention is to provide a separation apparatus for powder and the like, which can improve the collection efficiency of pellets and can downsize the apparatus itself.
前記目的を達成するために本発明による請求項１記載の粉体等の分離装置は、上部に粉体やフロス等を排出する排出管が配置され、粉体，フロス等を含む粒体，ペレットが混合された１次空気が接線方向から導入される円筒部と、前記円筒部の下部に設けられた円錐筒部と、前記円錐筒部の下部中央に設けられ、側壁に設けた円周スリットからの高速空気を上昇気流に方向変換するスタビライザと、前記円筒部で粉体，フロス等を含む粒体，ペレットを前記１次空気とともに前記円筒部の内周に沿って接線方向に旋回するように送出する１次空気送出手段と、前記円錐筒部の下部で前記円筒部から落下してきた粉体，フロス等を含む粒体，ペレットに前記円周スリットから高速空気を吹き込んで粉体，フロス等を前記円筒部に上昇させる２次空気送出手段と、前記２次空気送出手段の下方から、３次空気を吹き上げる３次空気吹き上げ手段と、前記３次空気吹き上げ手段の下から粒体，ペレットを排出する手段とを備える分離装置において、前記スタビライザの上部に円錐形状体のコマを設け、スタビライザの鍔によって真上に飛ばされた流体が前記コマに当たることにより前記円筒部または円錐筒部の内壁面方向に向きを変えることを特徴とする。
前記円錐形状体のコマの円錐面の角度は、適切な角度に設定することができるが、円筒体の軸に対し略４５°に設定すれば、ペレットの真上への上昇を有効に抑えることが可能となる。
また、前記排気管は、その入口が、前記旋回方向とは反対方向に向かって開口する接線排気管を採用することができる。
さらに、前記１次空気送出手段は、前記円筒部の内壁面の接線方向に水平または上方に向って開口する接線導入管を備えた構成にすることができる。
なお、本発明による粉体等の分離装置の分離手順は、上から順に排気管、円筒状の１次分離空間、円錐状の２次分離空間、搬出口を備える縦形筒を用いて、粒体，ペレットから粉体，フロス等を分離する手順であって、分離対象である前記粉体，フロス等を含む粒体，ペレットを１次空気と共に、前記１次分離空間内の円筒内壁面に沿って略水平または僅かに上方に向って旋回する方向に導入し、前記粒体中，ペレット中に混じっている粉体，フロス等の大部分を円筒内の気流によって上昇させて、前記排気管から排出分離し、粒体，ペレットを自重で２次分離空間に落下させる１次分離ステップと、前記２次分離空間の円錐筒部に落下してくる粒体，ペレットに対し、前記２次分離空間の下部のスリットから中心に向かって高速空気を吹き込み粒体やペレットに付着している粉体を剥離し、残存の粉体，フロス等を前記１次分離空間に吹き上げる２次分離ステップと、前記２次分離ステップで真上に吹き上げられた粉体，フロス等を含む２次空気を前記円筒内壁面の方向に向かうように方向変換させる２次空気方向変換ステップと、前記２次空気の吹き込み位置の下方から３次空気を吹き込み残存の粉体，フロス等を前記２次分離空間に吹き上げる３次分離ステップと、前記円錐筒部の下の搬出口から粉体，フロス等を除去した粒体，ペレットを連続的に取り出す搬出ステップとを含むものである。
In order to achieve the above object, the powder separation apparatus according to claim 1 according to the present invention is provided with a discharge pipe for discharging powder, floss, etc. at the upper part, and granules, pellets containing powder, floss, etc. A cylindrical portion into which the primary air mixed with the mixture is introduced from the tangential direction, a conical cylinder portion provided at a lower portion of the cylindrical portion, and a circumferential slit provided at a lower center of the conical cylinder portion and provided on a side wall And a stabilizer for changing the direction of high-speed air from the air to an ascending air current, and a granular material and pellets containing powder, floss, etc. in the cylindrical portion so as to turn tangentially along the inner periphery of the cylindrical portion together with the primary air Primary air delivery means for delivering the powder, and particles, floss, etc. that have fallen from the cylindrical part at the lower part of the conical cylinder part, high-speed air is blown into the pellets from the circumferential slit, and the powder, floss Etc. to raise the cylindrical part In a separation apparatus comprising: an air sending means; a tertiary air blowing means for blowing up tertiary air from below the secondary air sending means; and a means for discharging granules and pellets from under the tertiary air blowing means The top of the stabilizer is provided with a cone-shaped piece, and the direction of the fluid that has been blown directly above the stabilizer by striking the piece is changed in the direction of the inner wall surface of the cylindrical portion or the conical cylindrical portion. To do.
The angle of the conical surface of the cone-shaped piece can be set to an appropriate angle, but if the angle is set to approximately 45 ° with respect to the axis of the cylindrical body, it is possible to effectively suppress the ascent of the pellet. Is possible.
The exhaust pipe may employ a tangential exhaust pipe having an inlet opening in a direction opposite to the turning direction.
Furthermore, the primary air delivery means can be configured to include a tangential introduction pipe that opens horizontally or upward in the tangential direction of the inner wall surface of the cylindrical portion.
In addition, the separation procedure of the separation apparatus for powder or the like according to the present invention is performed by using a vertical cylinder including an exhaust pipe, a cylindrical primary separation space, a conical secondary separation space, and a carry-out port in order from the top. , A procedure for separating powder, floss, etc. from pellets, and the particles, pellets, etc. containing the powder, floss, etc., to be separated, along with the primary air, along the cylindrical inner wall surface in the primary separation space And introduced in the direction of turning substantially horizontally or slightly upward, and most of the powder, floss, etc. mixed in the granules, pellets are raised by the air flow in the cylinder, and from the exhaust pipe A primary separation step of discharging and separating the granules and pellets into the secondary separation space by their own weight, and the secondary separation space for the granules and pellets falling into the conical cylinder part of the secondary separation space Blow high-speed air toward the center from the bottom slit of The powder separated from the particles and pellets, the secondary separation step of blowing the remaining powder, floss, etc. into the primary separation space, and the powder blown up directly in the secondary separation step A secondary air direction changing step for changing the direction of the secondary air containing the body, floss, and the like so as to go in the direction of the inner wall surface of the cylinder, and residual powder by blowing in the tertiary air from below the blowing position of the secondary air , A tertiary separation step of blowing up floss and the like into the secondary separation space, and a carry-out step of continuously taking out particles and pellets from which powder, floss and the like have been removed from the carry-out port under the conical cylinder portion .
上記構成によれば、コマの作用により真上に勢い良く上昇した粒体，ペレットは角度を持って壁方向に向きを変えるため、粒体，ペレットの円筒体上部への到達は抑えられ、製品とする粒体，ペレットのロスを格段に減少させることができる。また、粒体，ペレットの真上への上昇距離が小さくなり飛びにくくなるため、高さ方向の寸法を小さくすることができ、従来の分離装置に比較し、分離能力の向上を図りつつ装置の小形化を実現することができる。 According to the above configuration, since the particles and pellets that have risen vigorously upward due to the action of the coma change the direction toward the wall at an angle, the arrival of the particles and pellets at the top of the cylindrical body is suppressed, and the product The loss of granules and pellets can be significantly reduced. In addition, since the rising distance to the top of the granule and pellet becomes small and difficult to fly, the height dimension can be reduced, and the separation capacity of the apparatus is improved while improving the separation ability compared to the conventional separation apparatus. Miniaturization can be realized.
以下、図面を参照して本発明の実施の形態を詳しく説明する。
図１は本発明による粉体等の分離装置の実施の形態を示す概略正面図、図２は図１の分離装置のＡ−Ａ断面図，図３は本発明による粉体等の分離装置の２次空気挿入と３次空気挿入の関係を説明するための正面断面図である。
各図において、図５で用いた符号と同じ符号が付されている部分は、図５で説明した部分と同じ構造，機能を持つものである。
Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
FIG. 1 is a schematic front view showing an embodiment of a separation apparatus for powder and the like according to the present invention, FIG. 2 is a sectional view taken on line AA of the separation apparatus of FIG. 1, and FIG. It is front sectional drawing for demonstrating the relationship between secondary air insertion and tertiary air insertion.
In each figure, the parts denoted by the same reference numerals as those used in FIG. 5 have the same structure and function as the parts described in FIG.
したがって、円筒部２１の上部に上昇してきたフロス２６を排出する排気管２の円筒部２１への取り付け構造，その機能は図５と変わらない。また、ペレット２５の集合体を収容するホッパ１０，輸送管９の構造および１次空気（Ｉ）を導入する接線導入管４の円筒部２１への取り付け構造，円錐筒部３の形状，２次空気（II）を円錐筒部３の下部に吹き込む２次空気吹込室５の構造，３次空気（III）を取り込む下部円筒部１３，下部円筒部１３の下部に設置され、落下してくるペレット２５を分割した収容部で受け、回転させることにより下部に一定量ごと落下させるロータリーバルブ８の構造は図５と変わらない。 Accordingly, the structure and function of the exhaust pipe 2 for discharging the floss 26 rising to the upper part of the cylindrical portion 21 to the cylindrical portion 21 and its function are the same as those in FIG. Further, the structure of the hopper 10 for accommodating the aggregate of pellets 25, the structure of the transport pipe 9, and the tangential introduction pipe 4 for introducing the primary air (I) to the cylindrical part 21, the shape of the conical cylinder part 3, the secondary The structure of the secondary air blowing chamber 5 that blows air (II) into the lower part of the conical cylinder part 3, the lower cylindrical part 13 that takes in the tertiary air (III), and the pellets that fall and fall below the lower cylindrical part 13 The structure of the rotary valve 8 that receives 25 by the divided housing portion and drops it by a fixed amount by rotating it is the same as in FIG.
この実施の形態はホッパ１０に収容しているペレット２５に混合されていたり、ペレット２５に付着されていたりするフロス２６を排気管２から排出する場合の例である。
円筒部２１の形状は、図５の円筒部１に比較し高さ方向が小さくなっている。下部円筒部１３の上部に設けられているスタビライザ１２は、図３に示すような形の鍔１２ａを有するものである。スタビライザ１２の底面１２ｂは円形であり、下部円筒部１３の内部の直径をｄとすると、底面１２ｂの直径は０．４〜０．６ｄの寸法にしてある。下部円筒部１３の下方から３次空気を底面１２ｂの周囲部分から吹き上げ、ペレット２５を落下させる適切な空間を設けている。
This embodiment is an example in the case where the floss 26 mixed in the pellet 25 accommodated in the hopper 10 or attached to the pellet 25 is discharged from the exhaust pipe 2.
The shape of the cylindrical portion 21 is smaller in the height direction than the cylindrical portion 1 of FIG. The stabilizer 12 provided in the upper part of the lower cylindrical part 13 has the collar 12a of a shape as shown in FIG. The bottom surface 12b of the stabilizer 12 is circular, and the diameter of the bottom surface 12b is 0.4 to 0.6d, where d is the inner diameter of the lower cylindrical portion 13. An appropriate space is provided in which the tertiary air is blown from the lower portion of the lower cylindrical portion 13 from the peripheral portion of the bottom surface 12b and the pellet 25 is dropped.
スタビライザ１２の中央部は上部に延長され、延長先に円錐形状体のコマ１９が連結されている。コマ１９は図４に示すように２つの円錐部１９ａ，１９ｂの底面を一体化して構成したものであり、円錐部１９ｂの円錐面１９ｃの角度は垂直に対し略４５°の傾斜となっている。上昇気流の多くは、円錐面１９ｃに沿って旋回しながら吹き上がり、円筒部２１や円錐筒部３の内壁面に向かう方向に変えられる。そのため円筒部２１を真っ直ぐ吹き上がる気流を抑制できる。 A central portion of the stabilizer 12 extends upward, and a cone-shaped frame 19 is connected to the extension destination. As shown in FIG. 4, the top 19 is formed by integrating the bottom surfaces of the two conical portions 19a and 19b, and the angle of the conical surface 19c of the conical portion 19b is substantially 45 ° with respect to the vertical. . Most of the ascending air current is blown up while turning along the conical surface 19c, and is changed in a direction toward the inner wall surface of the cylindrical portion 21 or the conical cylinder portion 3. Therefore, the airflow that blows straight up the cylindrical portion 21 can be suppressed.
つぎに本発明による分離装置によりペレットからフロス等を分離する場合のコマの製品飛散防止効果の測定例を説明する。
使用する分離装置は、図１に示す構成と同等であり、図６の（ａ）に示す構成（コマが存在しない）のスタビライザを用いた場合と、図６の（ｂ）に示すコマを有するスタビライザを用いた場合の製品飛散率を比較した。
使用するペレットのテストサンプルは、図７に示すプラスチックペレットで、かさ比重は０．５３，直径約３ｍｍ，厚み約１．７ｍｍのものを用いた。
製品ペレット５ｋｇを定量供給しながら連続運転を行い、飛散したペレットの重量を測定して製品飛散率を求めた。運転は定格風量で測定した（吸引風量：２．６ｍ3 ／ｍｉｎ，２次エアー：１．０ｍ3 ／ｍｉｎ，原料投入口：１．６ｍ3 ／ｍｉｎ）。
処理量は１００ｋｇ／ｈｒ，１５０ｋｇ／ｈｒ，２５０ｋｇ／ｈｒとした。
Next, a measurement example of the product scattering prevention effect of the top when the floss or the like is separated from the pellets by the separation apparatus according to the present invention will be described.
The separation device to be used is equivalent to the configuration shown in FIG. 1, and includes a stabilizer having the configuration shown in (a) of FIG. 6 (the frame is not present) and the frame shown in (b) of FIG. The product scattering rate when using a stabilizer was compared.
The pellet test sample used was a plastic pellet shown in FIG. 7, having a bulk specific gravity of 0.53, a diameter of about 3 mm, and a thickness of about 1.7 mm.
Continuous operation was carried out while quantitatively supplying 5 kg of product pellets, and the weight of the scattered pellets was measured to determine the product scattering rate. The operation was measured at the rated air volume (suction air volume: 2.6 m 3 / min, secondary air: 1.0 m 3 / min, raw material inlet: 1.6 m 3 / min).
The throughput was 100 kg / hr, 150 kg / hr, 250 kg / hr.
測定結果を表す表１は、コマが存在しない場合で処理量がそれぞれ１００ｋｇ／ｈｒ，１５０ｋｇ／ｈｒ，２５０ｋｇ／ｈｒの場合、飛散ペレット重量（ｇ）は８７，６７，３３となり、それら製品飛散率（％）は１．７，１．３，０．６６となった。
測定結果を表す表２は、コマを有する場合で処理量がそれぞれ１００ｋｇ／ｈｒ，１５０ｋｇ／ｈｒ，２５０ｋｇ／ｈｒの場合、飛散ペレット重量（ｇ）は１．６，１．１，０．４７となり、それら製品飛散率（％）は０．０３２，０．０２２，０．００９４となった。
（評価）コマ有りは、コマ無しに比較し、飛散量は約１／５０倍に軽減された。また、処理量が増加することにより飛散率も小さくなることが理解できる。
Table 2 showing the measurement results shows that the scattered pellet weight (g) is 1.6, 1.1, and 0.47 when there are frames and the throughput is 100 kg / hr, 150 kg / hr, and 250 kg / hr, respectively. The product scattering rate (%) was 0.032, 0.022, 0.0094.
(Evaluation) The amount of scattering was reduced to about 1/50 times that of no frame. Moreover, it can be understood that the scattering rate decreases as the processing amount increases.
以上の実施の形態は、スタビライザの上に円錐面のコマを備えた例を説明したが、円錐面だけでなく、例えば円に近い角錐面のコマなどを設けても同様の効果を得ることができる。 In the above embodiment, an example in which a cone-shaped piece is provided on the stabilizer has been described. However, the same effect can be obtained by providing not only a conical surface but also a pyramid-shaped piece close to a circle, for example. it can.
粒体やペレットなどから、該粒体，ペレットに付着，混入している粉体やフロス（絹糸のような細い糸状のゴミ）などを分離する分離装置である。 This is a separation device for separating powder, floss (fine thread-like dust such as silk thread), etc. adhering to and mixing in the particles and pellets from the particles and pellets.
１，２１ 円筒部
２ 排気管
２ａ 排気管入口開口
３ 円錐筒部
４ 接線導入管
５ ２次空気吹込室
６ ２次空気用送風機
７ 排気用送風機
８ ロータリーバルブ（エアロッカ排出機）
９ 輸送管
１０ ホッパ
１２ スタビライザ
１３ 下部円筒部
１５ 粒体
１６ 粉体等
１８ ３次空気用送風機
１９ コマ（円錐形状体）
１９ａ，１９ｂ 円錐部
１９ｃ 円錐面
２５ ペレット
２６ フロス（絹糸のような細い糸状のゴミ）
DESCRIPTION OF SYMBOLS 1,21 Cylindrical part 2 Exhaust pipe 2a Exhaust pipe inlet opening 3 Conical cylinder part 4 Tangential introduction pipe 5 Secondary air blowing chamber 6 Secondary air blower 7 Exhaust blower 8 Rotary valve (air locker discharge machine)
DESCRIPTION OF SYMBOLS 9 Transport pipe 10 Hopper 12 Stabilizer 13 Lower cylindrical part 15 Granules 16 Powder etc. 18 Third air blower 19 Top (conical body)
19a, 19b Conical part 19c Conical surface 25 Pellet 26 Floss (fine thread-like dust like silk thread)
Claims (1)
前記円筒部の下部に設けられた円錐筒部と、
前記円錐筒部の下部中央に設けられ、側壁に設けた円周スリットからの高速空気を上昇気流に方向変換するスタビライザと、
前記円筒部で粉体，フロス等を含む粒体，ペレットを前記１次空気とともに前記円筒部の内周に沿って旋回するように送出する１次空気送出手段と、
前記円錐筒部の下部で前記円筒部から落下してきた粉体，フロス等を含む粒体，ペレットに前記円周スリットから高速空気を吹き込んで粉体，フロス等を前記円筒部に上昇させる２次空気送出手段と、
前記２次空気送出手段の下方から、３次空気を吹き上げる３次空気吹き上げ手段と、
前記３次空気吹き上げ手段の下から粒体，ペレットを排出する手段と、を備える分離装置において、
前記スタビライザの上部に円錐形状体のコマを設け、
前記スタビライザに当たって上昇気流に方向変換された２次空気は前記コマに当たることにより前記円筒部または円錐筒部の内壁面方向に向きを変えることを特徴とする粉体等の分離装置。 A discharge pipe for discharging powder, floss, etc. is arranged at the upper part, and a cylindrical part into which primary air mixed with particles, pellets containing powder, floss, etc. is introduced from the tangential direction;
A conical cylinder portion provided at a lower portion of the cylindrical portion;
A stabilizer that is provided at the lower center of the conical cylinder part, and changes the direction of the high-speed air from the circumferential slit provided on the side wall into the rising airflow;
Primary air delivery means for delivering particles and pellets containing powder, floss, etc. in the cylindrical part so as to swirl along the inner periphery of the cylindrical part together with the primary air;
Secondary that raises powder, floss, and the like to the cylindrical portion by blowing high-speed air from the circumferential slit into the particles and pellets containing powder, floss, and the like that have fallen from the cylindrical portion at the lower portion of the conical cylinder portion Air delivery means;
Tertiary air blowing means for blowing tertiary air from below the secondary air delivery means;
In the separation apparatus comprising: means for discharging granules and pellets from under the tertiary air blowing means;
A cone-shaped frame is provided on the top of the stabilizer,
An apparatus for separating powder or the like, characterized in that secondary air that has been converted into an upward airflow by hitting the stabilizer changes its direction toward the inner wall surface of the cylindrical portion or conical cylindrical portion by hitting the top.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107952682A (en) * | 2017-11-30 | 2018-04-24 | 界首市鑫龙粮油机械加工有限公司 | A kind of adjustable cereal pneumatic separation device |
| KR20230001106A (en) * | 2021-06-28 | 2023-01-04 | 디와이피엔에프 주식회사 | Apparatus for removing dust from raw materials |
| KR20230001244A (en) * | 2021-06-28 | 2023-01-04 | 농업회사법인 푸디웜 주식회사 | A appratus for screening and collecting of larva |
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2016
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107952682A (en) * | 2017-11-30 | 2018-04-24 | 界首市鑫龙粮油机械加工有限公司 | A kind of adjustable cereal pneumatic separation device |
| CN107952682B (en) * | 2017-11-30 | 2020-12-18 | 界首市鑫龙粮油机械加工有限公司 | Adjustable grain winnowing device |
| KR20230001106A (en) * | 2021-06-28 | 2023-01-04 | 디와이피엔에프 주식회사 | Apparatus for removing dust from raw materials |
| KR20230001244A (en) * | 2021-06-28 | 2023-01-04 | 농업회사법인 푸디웜 주식회사 | A appratus for screening and collecting of larva |
| KR102528540B1 (en) * | 2021-06-28 | 2023-05-08 | 농업회사법인 푸디웜 주식회사 | A appratus for screening and collecting of larva |
| KR102540648B1 (en) * | 2021-06-28 | 2023-06-07 | 디와이피엔에프 주식회사 | Apparatus for removing dust from raw materials |
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