JP6463398B2 - Kernel separator and grain air conveying method - Google Patents

Description

本発明は、搬送風から穀粒を分離させる穀粒分離装置および米麦等の穀粒を搬送する穀粒空気搬送方法に係るものである。   The present invention relates to a grain separation device that separates grains from a conveying wind and a grain air conveyance method that conveys grains such as rice and wheat.

従来、米麦の穀粒は精米機（精麦機）によって精白処理し、表面の粉状物成分を除去するが、一旦、精白した穀粒であっても、搬送中に穀粒同士が擦れ合って、表面の粉状物が削り取られて遊離粉状物となる。
この遊離粉状物を含めて粉状物を除去する装置は、研米装置として公知である（特許文献１参照）。
また、従来、送風装置の高圧風で搬送対象物を搬送し、筒状のサイクロンで搬送風と共に搬送対象物を吹き込み、サイクロン内で搬送風を渦流にして減圧して搬送対象物と搬送風とを分離する方法は公知である（特許文献２）。
また、従来、送風装置の高圧風で搬送対象物を搬送し、筒状のサイクロン形状の取入部と取入部の下方の漏斗形状の漏斗部を設け、取入部と漏斗部に開口孔を設け、開口孔の周囲に吸引室を設けた構成は、同一出願人による先願として特許され、公知である（特許文献３）。 Conventionally, grains of rice wheat are refined by a rice mill (milling machine) to remove the surface powdery components, but even once refined grains, the grains rub against each other during transportation. Thus, the powder on the surface is scraped off to form a free powder.
An apparatus for removing the powdery material including the free powdery material is known as a polishing apparatus (see Patent Document 1).
Further, conventionally, the object to be conveyed is conveyed by the high-pressure air of the blower, the object to be conveyed is blown together with the conveying air in a cylindrical cyclone, and the object to be conveyed and the conveying air are reduced in pressure by making the conveying air vortex in the cyclone. A method for separating the two is known (Patent Document 2).
In addition, conventionally, the object to be conveyed is conveyed with high-pressure air from a blower, and a cylindrical cyclone-shaped intake part and a funnel-shaped funnel part below the intake part are provided, and an opening hole is provided in the intake part and the funnel part, A configuration in which a suction chamber is provided around the opening hole is known as a prior application by the same applicant and is known (Patent Document 3).

特開２００７−１２５５３８号公報JP 2007-125538 A 特開２００４−１８２３７２号公報JP 2004-182372 A 特許５１７４８５２号公報Japanese Patent No. 5174852

前記公知例のうち特開２００７−１２５５３８号公報のものは、一旦、精白処理した穀粒を、再び、研米装置の除粉状物筒内に供給し、研米ロールで研米するので、駆動機構が必要であり、設備全体が大型になり、設備費が嵩むという課題がある。
即ち、穀粒に付着した粉状物を除去しないと、タンクや搬送装置に粉状物が溜まり、メンテナンスが大変であり、精白処理した穀粒を受け入れる業者にとって、わざわざ、研米装置を設けることは大変な負担となるが、穀粒に付着した粉状物を除去する装置は、現在、研米装置以外では存在しない。
また、前記公知例のうち特開２００４−１８２３７２号公報のものは、穀粒を搬送風から分離するサイクロンであるから、穀粒に付着した粉状物の除去はできないという課題がある。
即ち、公知例のサイクロンは、本来、搬送風を減衰させることを目的とし、穀粒はサイクロンの内周に摺接しないようにしているため、穀粒表面の粉状物は、穀粒に付着したまま次工程に搬送される。
そして、穀粒同士の接触により生じた粉状物はサイクロン内に溜まって付着粉状物となり、また、サイクロンの排気工程や送風装置等に粉状物が運ばれて悪影響を与え、これらのメンテナンスも容易ではない。
また、前記公知例のうち特許５１７４８５２号公報のものは、取入部と漏斗部の周囲の吸引室を設けているので、穀粒表面の粉状物の除去という課題は克服しているが、機体上部に設けた排気用筒により吸引室を排気する構成のため、分離した粉状物が吸引室に残留するという課題がある。
本願は、粉状物の除去過程を工夫し、搬送中の穀粒から粉状物の除去および粉状物の残留防止できるようにすると共に、メンテナンスを容易にしたものである。 Of the known examples, the one of JP-A-2007-125538 is once supplied with the grain that has been subjected to the whitening treatment, again in the pulverized product cylinder of the rice polishing apparatus, and polished with a rice polishing roll. There is a problem that a drive mechanism is required, the entire equipment becomes large, and equipment costs increase.
That is, if the powdery substances adhering to the grains are not removed, the powdery substances will accumulate in the tank and the conveying device, and maintenance will be difficult. However, there is currently no apparatus for removing powdery substances adhering to the grain other than the rice polishing apparatus.
Moreover, since the thing of Unexamined-Japanese-Patent No. 2004-182372 is a cyclone which isolate | separates a grain from a conveyance wind among the said well-known examples, there exists a subject that the powdery substance adhering to a grain cannot be removed.
In other words, the cyclone of the known example is originally intended to attenuate the conveying wind, and the grain does not slide on the inner periphery of the cyclone, so that the powder on the grain surface adheres to the grain. It is conveyed to the next process as it is.
And the powdery material generated by the contact between the grains accumulates in the cyclone and becomes an adhering powdery material, and the powdery material is carried to the cyclone exhausting process and the blower, etc., and adversely affects these maintenance. It is not easy.
Also, among the known examples, the one disclosed in Japanese Patent No. 5174852 has a suction chamber around the intake part and the funnel part, so the problem of removing the powdery material on the grain surface is overcome, but the fuselage Since the suction chamber is exhausted by the exhaust cylinder provided at the top, there is a problem that the separated powdery substance remains in the suction chamber.
The present application devises the process of removing the powdery material, makes it possible to remove the powdery material from the grain being conveyed and prevent the powdery material from remaining, and facilitates maintenance.

請求項１の発明は、張り込みホッパー１０に投入された穀粒Ｔを送風装置２の吸引搬送風により貯留タンク１１に搬送する搬送筒１の端部を、該搬送筒１から取り入れた搬送風を減速する無孔板により密閉された筒形状に形成した取入部１５の上側側部に接続し、該取入部１５の下方に、下部に貯留タンク１１に穀粒Ｔを供給するロータリーバルブ１８を設けた下方に至るに従い細くなる漏斗形状の分離排気部１７を設け、分離排気部１７は、分離排気部１７の一部または全部に形成した開口孔２６と、分離排気部１７の周囲を密閉状に包囲する下部外側ケース３２と、分離排気部１７の外周と下部外側ケース３２の内周との間に形成した吸引室２７とにより、分離排気部１７内で搬送風と穀粒Ｔとを分離しつつ吸引室２７から搬送風を排気する構成とし、前記吸引室２７は、吸引室２７の上下両側から分離排気部１７内の搬送風を吸引排気する構成とした穀粒分離装置としたものである。
請求項２の発明は、張り込みホッパー１０に投入された穀粒Ｔを送風装置２の吸引搬送風により貯留タンク１１に搬送する搬送筒１の端部を、該搬送筒１から取り入れた搬送風を減速する無孔板により密閉された筒形状に形成した取入部１５の上側側部に接続し、該取入部１５の下方に、下部に貯留タンク１１に穀粒Ｔを供給するロータリーバルブ１８を設けた下方に至るに従い細くなる漏斗形状の分離排気部１７を設け、分離排気部１７は、分離排気部１７の一部または全部に形成した開口孔２６と、分離排気部１７の周囲を密閉状に包囲する下部外側ケース３２と、分離排気部１７の外周と下部外側ケース３２の内周との間に形成した吸引室２７とにより、分離排気部１７内で搬送風と穀粒Ｔとを分離しつつ吸引室２７から搬送風を排気する構成とし、前記吸引室２７の上側には複数の上側排気分岐管４０の一端を接続し、吸引室２７の下側には複数の下側排気分岐管４３の一端を接続した穀粒分離装置としたものである。
請求項３の発明は、張り込みホッパー１０に投入された穀粒Ｔを送風装置２の吸引搬送風により貯留タンク１１に搬送する搬送筒１の端部を、該搬送筒１から取り入れた搬送風を減速する無孔板により密閉された筒形状に形成した取入部１５の上側側部に接続し、該取入部１５の下方に、下部に貯留タンク１１に穀粒Ｔを供給するロータリーバルブ１８を設けた下方に至るに従い細くなる漏斗形状の分離排気部１７を設け、分離排気部１７は、分離排気部１７の一部または全部に形成した開口孔２６と、分離排気部１７の周囲を密閉状に包囲する下部外側ケース３２と、分離排気部１７の外周と下部外側ケース３２の内周との間に形成した吸引室２７とにより、分離排気部１７内で搬送風と穀粒Ｔとを分離しつつ吸引室２７から搬送風を排気する構成とし、前記下部外側ケース３２の上方には取入部１５を包囲する上部外側ケース１９を設け、上部外側ケース１９の内周と取入部１５の外周の間の空間内に複数の上側排気分岐管４０を配置し、上側排気分岐管４０の下部は密閉された吸引室２７の上部に接続し、密閉された吸引室２７の下部には複数の下側排気分岐管４３の一端を接続した穀粒分離装置としたものである。
請求項４の発明は、前記複数の上側排気分岐管４０と下側排気分岐管４３は、円周方向に所定間隔をおいてそれぞれ吸引室２７に接続した穀粒分離装置としたものである。
請求項５の発明は、前記取入部１５の下部は、取入部１５の周囲を包囲する上部外側ケース１９の下部に設けた仕切板２９に取付け、前記分離排気部１７は、仕切板２９に取付けた上側漏斗部３０と、上側漏斗部３０の下部に取付けた下側漏斗部３１とにより上下に分割して形成し、少なくとも、下側漏斗部３１に開口孔２６を形成すると共に、上側漏斗部３０と上部外側ケース１９の下側に設けた下部外側ケース３２側とのそれぞれに対して着脱自在に構成した穀粒分離装置としたものである。
請求項６の発明は、前記分離排気部１７の周囲を包囲する下部外側ケース３２の所定位置には、着脱自在の点検蓋４６により閉塞した開口部４５を設け、開口部４５は取り外した下側漏斗部３１を出し入れ可能な大きさに形成した穀粒分離装置としたものである。
請求項７の発明は、前記下部外側ケース３２に形成した、取り外した下側漏斗部３１を出し入れ可能な大きさの大型開口部４５Ａと対峙する位置の下部外側ケース３２に大型開口部４５Ａよりも小さい小型開口部４５Ｂを形成した穀粒分離装置としたものである。 According to the first aspect of the present invention, the conveying wind obtained from the conveying cylinder 1 at the end of the conveying cylinder 1 that conveys the grain T put into the tension hopper 10 to the storage tank 11 by the suction conveying air of the blower 2 is used. A rotary valve 18 for connecting the grain T to the storage tank 11 is provided below the intake portion 15 and connected to the upper side portion of the intake portion 15 formed in a cylindrical shape sealed by a non-perforated plate that decelerates. A separation funnel-shaped separation exhaust portion 17 that becomes thinner as it goes downward is provided. The separation exhaust portion 17 seals the periphery of the separation exhaust portion 17 with an opening 26 formed in a part or all of the separation exhaust portion 17. The lower outer case 32 that surrounds and the suction chamber 27 formed between the outer periphery of the separation exhaust part 17 and the inner periphery of the lower outer case 32 separates the conveying wind and the grain T in the separation exhaust part 17. While conveying air from the suction chamber 27 Configuration and to that, the suction chamber 27 is obtained by a structure for sucking exhaust the carrier air in the separation exhaust part 17 from upper and lower sides of the suction chamber 27 was a grain separating device.
According to the second aspect of the present invention, the conveying wind obtained by taking the end of the conveying cylinder 1 that conveys the grain T put into the tension hopper 10 into the storage tank 11 by the suction conveying air of the blower 2 is taken from the conveying cylinder 1. A rotary valve 18 for connecting the grain T to the storage tank 11 is provided below the intake portion 15 and connected to the upper side portion of the intake portion 15 formed in a cylindrical shape sealed by a non-perforated plate that decelerates. A separation funnel-shaped separation exhaust portion 17 that becomes thinner as it goes downward is provided. The separation exhaust portion 17 seals the periphery of the separation exhaust portion 17 with an opening 26 formed in a part or all of the separation exhaust portion 17. The lower outer case 32 that surrounds and the suction chamber 27 formed between the outer periphery of the separation exhaust part 17 and the inner periphery of the lower outer case 32 separates the conveying wind and the grain T in the separation exhaust part 17. While conveying air from the suction chamber 27 Configuration and then that, above the upper side of the suction chamber 27 is connected to one end of the plurality of upper exhaust branch pipe 40, the grain separation device connected to one end of the plurality of lower exhaust branch pipe 43 on the lower side of the suction chamber 27 It is what.
The invention of claim 3 is characterized in that the conveying wind obtained from the conveying cylinder 1 at the end of the conveying cylinder 1 that conveys the grain T put into the tension hopper 10 to the storage tank 11 by the suction conveying air of the blower 2 is used. A rotary valve 18 for connecting the grain T to the storage tank 11 is provided below the intake portion 15 and connected to the upper side portion of the intake portion 15 formed in a cylindrical shape sealed by a non-perforated plate that decelerates. A separation funnel-shaped separation exhaust portion 17 that becomes thinner as it goes downward is provided. The separation exhaust portion 17 seals the periphery of the separation exhaust portion 17 with an opening 26 formed in a part or all of the separation exhaust portion 17. The lower outer case 32 that surrounds and the suction chamber 27 formed between the outer periphery of the separation exhaust part 17 and the inner periphery of the lower outer case 32 separates the conveying wind and the grain T in the separation exhaust part 17. While conveying air from the suction chamber 27 Configuration and to that, the lower the upper outer casing 19 which surrounds the intake portion 15 above the outer case 32 is provided, a plurality of upper exhaust branches in the space between the outer periphery of the inner periphery and the intake portion 15 of the upper outer case 19 The pipe 40 is disposed, the lower part of the upper exhaust branch pipe 40 is connected to the upper part of the sealed suction chamber 27, and the grain in which one end of a plurality of lower exhaust branch pipes 43 is connected to the lower part of the sealed suction chamber 27. This is a grain separator.
According to a fourth aspect of the present invention, the plurality of upper exhaust branch pipes 40 and the lower exhaust branch pipes 43 are each a grain separation device connected to the suction chamber 27 at a predetermined interval in the circumferential direction.
According to a fifth aspect of the present invention, the lower portion of the intake portion 15 is attached to a partition plate 29 provided at a lower portion of the upper outer case 19 surrounding the intake portion 15, and the separation exhaust portion 17 is attached to the partition plate 29. The upper funnel portion 30 and the lower funnel portion 31 attached to the lower portion of the upper funnel portion 30 are divided into upper and lower portions, and at least the opening portion 26 is formed in the lower funnel portion 31 and the upper funnel portion is formed. 30 and a grain separation device configured to be detachable with respect to each of the lower outer case 32 side provided below the upper outer case 19.
According to the sixth aspect of the present invention, an opening 45 closed by a removable inspection lid 46 is provided at a predetermined position of the lower outer case 32 surrounding the separation exhaust part 17, and the opening 45 is removed from the lower side. The funnel portion 31 is a grain separation device formed in a size that allows it to be taken in and out.
According to the seventh aspect of the present invention, the lower outer case 32 is formed in the lower outer case 32 so as to face the large opening 45A having a size that allows the removed lower funnel portion 31 to be taken in and out, rather than the large opening 45A. The grain separator is formed with a small small opening 45B.

請求項１の発明では、分離排気部１７の周囲のみに設けた吸引室２７の上下両側から分離排気部１７内の搬送風を吸引排気するので、粉状物Ｆの除去効率を向上させ、かつ、粉状物Ｆの残留を防止できる。
請求項２の発明では、吸引室２７の上側に複数の上側排気分岐管４０を、吸引室２７の下側に複数の下側排気分岐管４３を接続しているので、吸引室２７の上下両側からの吸引排気構成を簡単に構成できる。
請求項３の発明では、取入部１５を包囲する上部外側ケース１９の内周と取入部１５の外周の間の空間内に複数の上側排気分岐管４０を配置しているので、機体をコンパクトに構成できる。
請求項４の発明では、複数の上側排気分岐管４０と下側排気分岐管４３を、円周方向に配置しているので、吸引室２７の吸引効率を向上させて、粉状物Ｆの除去効率を向上させ、かつ、粉状物Ｆの残留を防止できる。
請求項５の発明では、分離排気部１７を上側漏斗部３０と下側漏斗部３１と下側筒部３３とにより分割形成し、下側漏斗部３１に開口孔２６を形成しているので、目詰まり除去等の最もメンテナンスを必要とする下側漏斗部３１のみを取り外すことができ、メンテナンスを容易にすることができる。
請求項６の発明では、下部外側ケース３２に開口部４５を設けているので、点検蓋４６を外して分離排気部１７の周囲を開放することができ、メンテナンスを容易にすることができ、また、この開口部４５から分解した下側漏斗部３１を出し入れできるので、一層、メンテナンスを容易にすることができる。
請求項７の発明では、下部外側ケース３２の下側漏斗部３１の出し入れ可能な大型開口部４５Ａに対峙するように小さい小型開口部４５Ｂを設けているので、大型開口部４５Ａに対峙する側の開口部４５Ｂにより分離排気部１７の周囲を開放することができ、メンテナンスを容易にすることができる。 In the first aspect of the invention, since the conveying air in the separation exhaust unit 17 is sucked and exhausted from both the upper and lower sides of the suction chamber 27 provided only around the separation exhaust unit 17, the removal efficiency of the powdery substance F is improved, and , Residual powder F can be prevented.
In the second aspect of the invention, the plurality of upper exhaust branch pipes 40 are connected to the upper side of the suction chamber 27 and the plurality of lower exhaust branch pipes 43 are connected to the lower side of the suction chamber 27. It is possible to easily configure the suction / exhaust configuration from
In the invention of claim 3 , since the plurality of upper exhaust branch pipes 40 are arranged in the space between the inner periphery of the upper outer case 19 surrounding the intake portion 15 and the outer periphery of the intake portion 15, the airframe is made compact. Can be configured.
In the invention of claim 4 , since the plurality of upper exhaust branch pipes 40 and lower exhaust branch pipes 43 are arranged in the circumferential direction, the suction efficiency of the suction chamber 27 is improved and the powdery substance F is removed. Efficiency can be improved and the residue of the powdery substance F can be prevented.
In the invention of claim 5 , the separation exhaust part 17 is divided and formed by the upper funnel part 30, the lower funnel part 31 and the lower cylindrical part 33, and the opening hole 26 is formed in the lower funnel part 31. Only the lower funnel portion 31 requiring the most maintenance such as clogging removal can be removed, and the maintenance can be facilitated.
In the invention of claim 6 , since the opening 45 is provided in the lower outer case 32, the inspection cover 46 can be removed to open the periphery of the separation exhaust part 17, and maintenance can be facilitated. Since the lower funnel portion 31 disassembled from the opening 45 can be taken in and out, the maintenance can be further facilitated.
In the invention of claim 7 , since the small small opening 45B is provided so as to face the large opening 45A in which the lower funnel 31 of the lower outer case 32 can be put in and out, the side facing the large opening 45A is provided. The periphery of the separation exhaust part 17 can be opened by the opening 45B, and maintenance can be facilitated.

搬送装置の一例の概略配置図。Schematic arrangement diagram of an example of a transport device. 穀粒分離装置（粉状物除去部）の縦断面図。The longitudinal cross-sectional view of a grain separator (powder removal part). 同側面図。The same side view. 同正面図。The front view. 同底面図。The bottom view. 穀粒分離装置の取入部の横断面図。The cross-sectional view of the intake part of a grain separator. 粉状物除去部の一部縦断側面図および開口孔部分の横断面図。The partial vertical side view of a powdery substance removal part, and the cross-sectional view of an opening hole part. 上側漏斗部と下側漏斗部の分解正面図。The exploded front view of an upper funnel part and a lower funnel part. 下側漏斗部の正面図。The front view of a lower funnel part. 下側筒部の正面図。The front view of a lower side cylinder part.

本発明の一実施形態を図面により説明すると、図１において、１は、米麦、飼料等の穀粒Ｔを搬送する搬送装置Ｈの搬送通路を構成する搬送筒であり、搬送装置Ｈには一台の送風装置２を設ける。
送風装置２は公知のものであり、ファン（図示省略）を回転させて、送風装置２の一方側から吸引して他方に排気するように構成する。送風装置２の吸気部３には、前記搬送筒１の一端を接続して吸引搬送風路に形成する。５は送風装置２の排気部であり、排気部５から排気する。
搬送筒１の始端部側には張り込みホッパー１０の下部を接続する。
送風装置２により吸引される吸引搬送風は、送風装置２で圧縮されて排気部５より排気される高圧排気風に比し温度が低いため、搬送風により空気搬送するに際して穀粒Ｔの温度の上昇を抑制または防止して、穀粒Ｔの変質を防止する。 An embodiment of the present invention will be described with reference to the drawings. In FIG. 1, reference numeral 1 denotes a conveyance cylinder that constitutes a conveyance path of a conveyance device H that conveys grains T such as rice wheat and feed, and the conveyance device H includes One blower 2 is provided.
The air blower 2 is a well-known device, and is configured to rotate a fan (not shown) so as to be sucked from one side of the air blower 2 and exhausted to the other. One end of the transport cylinder 1 is connected to the intake section 3 of the blower 2 to form a suction transport air path. Reference numeral 5 denotes an exhaust part of the blower 2, which exhausts from the exhaust part 5.
The lower end of the stuffing hopper 10 is connected to the start end side of the transport cylinder 1.
Since the suction conveyance wind sucked by the blower 2 is lower in temperature than the high-pressure exhaust wind compressed by the blower 2 and exhausted from the exhaust unit 5, Suppressing or preventing the rise to prevent the grain T from being altered.

送風装置２と張り込みホッパー１０の間には、穀粒Ｔを貯留する貯留タンク１１を設ける。貯留タンク１１の上手側には穀粒Ｔを搬送する搬送風から穀粒Ｔを分離させる穀粒分離装置１２を設ける。
前記穀粒分離装置１２は、図２のように、前記搬送筒１からの搬送風を取り入れ減衰（減速）させる取入部１５と、該取入部１５の下方に設けた穀粒Ｔと搬送風とを分離させつつ搬送風を排気する分離排気部１７とを有して構成する。
分離排気部１７は下方に至るに従い細くなる漏斗形状に形成し、分離排気部１７の下部に前記貯留タンク１１に穀粒を供給するロータリーバルブ１８を設ける。 A storage tank 11 for storing the grain T is provided between the blower 2 and the stuffing hopper 10. On the upper side of the storage tank 11, a grain separation device 12 that separates the grain T from a conveying wind that conveys the grain T is provided.
As shown in FIG. 2, the grain separation device 12 includes an intake unit 15 that takes in and attenuates (decelerates) the conveyance air from the conveyance cylinder 1, and a grain T and a conveyance air provided below the intake unit 15. And a separation exhaust unit 17 that exhausts the conveying air while separating the air.
The separation exhaust part 17 is formed in a funnel shape that becomes thinner as it goes downward, and a rotary valve 18 that supplies grains to the storage tank 11 is provided below the separation exhaust part 17.

前記取入部１５は穀粒分離装置１２の上部外側ケース１９内に設け、取入部１５は無孔板により平面視において円筒形状に形成し、取入部１５の接線方向の位置に前記搬送筒１の供給側搬送筒２０を接続する供給側接続ノズル２１を接続して構成する。
すなわち、取入部１５は、所謂サイクロンの原理により取り込んだ搬送風および穀粒Ｔを減速させる。
この場合、取入部１５の内径と供給側接続ノズル２１から吹き込む搬送風の風力とを、穀粒Ｔが取入部１５内周面に衝撃的に当接して割れが生じないように、相対的に設定する。 The intake portion 15 is provided in the upper outer case 19 of the grain separation device 12, and the intake portion 15 is formed in a cylindrical shape in a plan view by a non-perforated plate, and the transfer cylinder 1 is positioned at a position tangential to the intake portion 15. A supply-side connection nozzle 21 that connects the supply-side transport cylinder 20 is connected.
That is, the intake part 15 decelerates the conveyance wind and the grain T taken in by the so-called cyclone principle.
In this case, the inner diameter of the intake portion 15 and the wind force of the conveying wind blown from the supply-side connection nozzle 21 are relatively set so that the grain T does not abut on the inner peripheral surface of the intake portion 15 and cracks occur. Set.

即ち、供給側接続ノズル２１から入る搬送風に対して、取入部１５の内径が小さいと、取入部１５に搬送風の減衰（減速）が十分でなく、取入部１５の内面に穀粒Ｔが当たって損傷するので、供給側接続ノズル２１から入る搬送風を渦流にして減衰（減速）させ、これにより、穀粒Ｔの自重落下を促すように設定する。
また、取入部１５の中心には所定径の縦軸心の円筒状の案内体２２を設ける。案内体２２は取入部１５内に流入した搬送風が渦流となるように、搬送風の流れ方向を案内する。
前記穀粒分離装置１２には、穀粒Ｔの搬送中に穀粒Ｔ表面から遊離した粉状物Ｆのみならず、穀粒Ｔ表面から遊離すると糠あるいはふすま等と称される遊離前の粉状物Ｆをも除去する粉状物除去部２５を設ける。 That is, if the intake portion 15 has a small inner diameter with respect to the conveyance air entering from the supply side connection nozzle 21, the intake portion 15 is not sufficiently attenuated (decelerated) and the grain T is formed on the inner surface of the intake portion 15. Since it hits and is damaged, the conveying wind entering from the supply side connection nozzle 21 is vortexed and attenuated (decelerated), thereby setting the grain T to be pushed down by its own weight.
A cylindrical guide body 22 having a predetermined diameter and a longitudinal axis is provided at the center of the intake portion 15. The guide body 22 guides the flow direction of the conveyance air so that the conveyance air flowing into the intake portion 15 becomes a vortex.
The grain separator 12 includes not only the powdery substance F released from the surface of the grain T during the conveyance of the grain T, but also the powder before release called cocoon or bran when released from the surface of the grain T. A powdery substance removing unit 25 for removing the powdery substance F is also provided.

この場合、粉状物除去部２５は、従来のような穀粒Ｔ同士を所定の圧力を付与して擦り合わせて表面を研磨する専用の研米（研磨）装置のようなものでなく、穀粒空気搬送装置Ｈの一部として使用する穀粒分離装置１２内に設ける。
したがって、粉状物除去部２５は、穀粒Ｔと搬送風とを分離させる際に、穀粒Ｔ表面の糠あるいはふすま等の粉状物Ｆを除去する（図６）。
そのため、通常の穀粒Ｔの空気搬送装置Ｈであっても使用できるが、一旦精白作業された穀粒Ｔの搬送経路中に穀粒分離装置１２を設置すると、搬送中の穀粒Ｔの表面の糠あるいはふすま等の粉状物Ｆの除去が可能となる。
また、特に、飼料や菓子の原料となる屑米等の搬送に使用すると、専用の粉状物除去部を不要とし、設備投資を低くでき、設置効果が高い。 In this case, the powdery substance removing unit 25 is not like a dedicated polishing (polishing) device for polishing the surface by applying a predetermined pressure to the grains T as in the past and rubbing them. It is provided in the grain separator 12 used as a part of the grain air transport device H.
Therefore, the powdery substance removing unit 25 removes the powdery substance F such as straw or bran on the surface of the grain T when separating the grain T and the conveying wind (FIG. 6).
Therefore, although it can be used even if it is the air conveyance apparatus H of the normal grain T, if the grain separation apparatus 12 is installed in the conveyance path | route of the grain T once refined, the surface of the grain T in conveyance It is possible to remove the powdered material F such as rice bran or bran.
In particular, when used for transporting waste rice or the like used as a raw material for feed or confectionery, a dedicated powdery material removing unit is not required, equipment investment can be reduced, and the installation effect is high.

粉状物除去部２５は、穀粒Ｔが通過しない開口孔２６を多数形成した分離排気部１７の周囲に、吸引室２７を形成して構成する。
すなわち、取入部１５に入った搬送風は分離排気部１７の開口孔２６から吸引室２７のみを介して排気される構成とし、この分離排気部１７内に搬送風と一緒に吹き込まれた穀粒Ｔ同士が摺り合わうことと、開口孔２６から搬送風が排気されるときに穀粒Ｔが分離排気部１７内周面に当接しながら流下することにより、穀粒Ｔに付着している粉状物Ｆおよび穀粒Ｔ表面を擦って除去し、除去した粉状物Ｆを吸引室２７により排気風として機外に吸引排除するように、粉状物除去部２５を構成している。 The powdery substance removing unit 25 is configured by forming a suction chamber 27 around the separation exhaust unit 17 in which many opening holes 26 through which the grain T does not pass are formed.
That is, the conveying air that has entered the intake section 15 is exhausted from the opening 26 of the separation exhaust section 17 only through the suction chamber 27, and the grains blown into the separation exhaust section 17 together with the conveyance air. The powder adhering to the grain T when the T slides and the grain T flows down while contacting the inner peripheral surface of the separation exhaust part 17 when the conveying air is exhausted from the opening hole 26. The powdery substance removing unit 25 is configured such that the surface of the powdery substance F and the grain T is removed by rubbing, and the removed powdery substance F is sucked out by the suction chamber 27 as exhaust air.

前記開口孔２６は、穀粒Ｔは通過しないが、粉状物Ｆが通過する目合構成とし（図６）、例えば、平織りや綾織りといった種々の加工方法で形成される網（メッシュ）や、パンチングメタル等の多孔版により形成すればよく、開口孔２６の向きも縦横斜めを問わず、何れでもよいが、開口孔２６の周縁は、所謂エッジと言われる鋭利な角部２８とすると（図６）、穀粒Ｔが流下する際、穀粒Ｔの付着粉状物Ｆの削り作用・効果および搬送風が抜けるときの粉状物Ｆの通過量を向上させられ、除去・選別・分離効率が向上して好適である。
なお、理解を容易にするため、図２では開口孔２６の大きさを実際のものより、大きく開口させている。 The opening 26 has a mesh structure through which the grain T does not pass but the powder F passes (FIG. 6). For example, a mesh (mesh) formed by various processing methods such as plain weave and twill weave The opening hole 26 may be formed of a perforated plate such as punching metal, and the direction of the opening hole 26 may be either vertical or horizontal, but the peripheral edge of the opening hole 26 is a sharp corner portion 28 called a so-called edge ( 6) When the grain T flows down, the shaving action / effect of the adhered powdery substance F on the grain T and the passing amount of the powdery substance F when the conveying air escapes are improved, and the removal / selection / separation is achieved. The efficiency is preferable.
In order to facilitate understanding, in FIG. 2, the size of the opening hole 26 is larger than the actual size.

また、分離排気部１７の内周面上を穀粒Ｔが流下するとき、分離排気部１７内の搬送風の渦流の遠心力が開口孔２６からの粉状物Ｆの排出方向に作用させられ、粉状物Ｆの選別効果を向上させることができる。
分離排気部１７は、取入部１５を設けた前記穀粒分離装置１２の上部外側ケース１９の下部の仕切板２９の下面側に分離排気部１７の上側漏斗部３０の上部を着脱自在に取付ける。
この上側漏斗部３０の下方に下側漏斗部３１を着脱自在に取付け、下側漏斗部３１の下部は下部外側ケース３２またはロータリーバルブ１８に着脱自在に取付けた下側筒部３３に着脱自在に取付け、この下側漏斗部３１に前記開口孔２６を形成している。 Further, when the grain T flows down on the inner peripheral surface of the separation exhaust part 17, the centrifugal force of the vortex of the conveying wind in the separation exhaust part 17 is applied in the discharge direction of the powdery substance F from the opening hole 26. And the sorting effect of the powdery substance F can be improved.
The separation exhaust part 17 detachably attaches the upper part of the upper funnel part 30 of the separation exhaust part 17 to the lower surface side of the lower partition plate 29 of the upper outer case 19 of the grain separation device 12 provided with the intake part 15.
A lower funnel portion 31 is detachably attached below the upper funnel portion 30, and a lower portion of the lower funnel portion 31 is detachably attached to a lower cylindrical portion 33 detachably attached to the lower outer case 32 or the rotary valve 18. The opening 26 is formed in the lower funnel portion 31.

したがって、本実施形態の分離排気部１７は、前記上側漏斗部３０と、この上側漏斗部３０に着脱自在に取付けた下側漏斗部３１と、下側漏斗部３１に着脱自在に取付けた下側筒部３３とにより構成し、開口孔２６を形成した下側漏斗部３１を下部外側ケース３２から取り外し可能に構成して、メンテナンスを容易にしている。
なお、開口孔２６は少なくとも分離排気部１７の一部に設ければよく、図２では下側漏斗部３１に開口孔２６を設けているが、図７では上側漏斗部３０に開口孔２６を形成しており、分離排気部１７の全体に開口孔２６を設けてもよい。 Therefore, the separation exhaust part 17 of the present embodiment includes the upper funnel part 30, a lower funnel part 31 detachably attached to the upper funnel part 30, and a lower side detachably attached to the lower funnel part 31. The lower funnel portion 31 formed of the cylindrical portion 33 and formed with the opening 26 is configured to be removable from the lower outer case 32 to facilitate maintenance.
The opening hole 26 may be provided at least in a part of the separation exhaust part 17. Although the opening hole 26 is provided in the lower funnel part 31 in FIG. 2, the opening hole 26 is provided in the upper funnel part 30 in FIG. 7. The opening 26 may be provided in the entire separation exhaust part 17.

３５は上側漏斗部３０に設けた係合突起、３６は下側漏斗部３１に設けた係合溝であり、下側漏斗部３１の係合溝３６を係合突起３５に係合させて取付ける。
３７は下側漏斗部３１に設けた係合突起、３８は下側筒部３３に設けた係合溝であり、下側漏斗部３１の係合突起３７に下側筒部３３の係合溝３８を係合させて取付ける。また、３８Ａは下側筒部３３に設けた下側係合溝であり、下部外側ケース３２に設けた係合突起（図示省略）に係合させる。 Reference numeral 35 denotes an engagement protrusion provided in the upper funnel portion 30, and 36 denotes an engagement groove provided in the lower funnel portion 31. The engagement groove 36 of the lower funnel portion 31 is engaged with the engagement protrusion 35 and attached. .
37 is an engagement protrusion provided in the lower funnel portion 31, 38 is an engagement groove provided in the lower tube portion 33, and an engagement groove of the lower tube portion 33 is formed in the engagement protrusion 37 of the lower funnel portion 31. 38 is engaged and attached. Reference numeral 38 </ b> A denotes a lower engagement groove provided in the lower cylinder portion 33, which is engaged with an engagement protrusion (not shown) provided in the lower outer case 32.

前記分離排気部１７の外周と穀粒分離装置１２の下部外側ケース３２の内周面との間に、前記吸引室２７を形成する。吸引室２７は、前記仕切板２９の下面とロータリーバルブ１８の上面と下部外側ケース３２の内周面により密閉状態に包囲されて形成すると共に、吸引室２７の上下両側から吸引する構成とする。
そのため、粉状物Ｆの選別排出効率を高めると共に、吸引室２７内および分離排気部１７内における粉状物Ｆの残留を抑制でき、メンテナンスを容易にできる。 The suction chamber 27 is formed between the outer periphery of the separation exhaust part 17 and the inner peripheral surface of the lower outer case 32 of the grain separation device 12. The suction chamber 27 is enclosed and formed by the lower surface of the partition plate 29, the upper surface of the rotary valve 18, and the inner peripheral surface of the lower outer case 32, and suction is performed from both the upper and lower sides of the suction chamber 27.
Therefore, the sorting and discharging efficiency of the powdery substance F can be increased, and the residual of the powdery substance F in the suction chamber 27 and the separation exhaust part 17 can be suppressed, and maintenance can be facilitated.

吸引室２７の上部の仕切板２９には、複数の上側排気分岐管４０の下部を接続し、各上側排気分岐管４０の上部は上部外側ケース１９の上部に設けた排気側接続ノズル４１の一端に接続し、排気側接続ノズル４１の他端は排気側搬送筒４２に接続する（図２、図５）。
また、吸引室２７の下方のロータリーバルブ１８の上方の下部外側ケース３２には複数の下側排気分岐管４３の一端を接続し（図２〜図４）、各下側排気分岐管４３の他端は中間排気管４４の一端側に集約して接続し、中間排気管４４の他端は前記排気側搬送筒４２の中間部に接続する（図１）。 The upper part of the upper exhaust branch pipe 40 is connected to the upper partition plate 29 of the suction chamber 27, and the upper part of each upper exhaust branch pipe 40 is one end of an exhaust side connection nozzle 41 provided on the upper part of the upper outer case 19. The other end of the exhaust side connection nozzle 41 is connected to the exhaust side transport cylinder 42 (FIGS. 2 and 5).
One end of a plurality of lower exhaust branch pipes 43 is connected to the lower outer case 32 above the rotary valve 18 below the suction chamber 27 (FIGS. 2 to 4). The ends are collectively connected to one end side of the intermediate exhaust pipe 44, and the other end of the intermediate exhaust pipe 44 is connected to the intermediate portion of the exhaust-side transfer cylinder 42 (FIG. 1).

また、前記したように、取入部１５は無孔板により形成し、取入部１５から搬送風が漏れないように構成しており、吸引室２７による分離排気部１７内の吸引効果を高めている。
また、分離排気部１７は、穀粒Ｔが分離排気部１７の内周面上を摺接しながら流下する傾斜角度となるように形成し、開口孔２６からの粉状物Ｆの選別排出効果を高めている。
前記下部外側ケース３２の所定位置には開口部４５を設け、開口部４５には点検蓋４６を設ける（図３、４）。 Further, as described above, the intake portion 15 is formed of a non-perforated plate, and is configured so that the conveying air does not leak from the intake portion 15, thereby enhancing the suction effect in the separation exhaust portion 17 by the suction chamber 27. .
Moreover, the separation exhaust part 17 is formed so as to have an inclination angle at which the grain T flows down while sliding on the inner peripheral surface of the separation exhaust part 17, and the effect of sorting and discharging the powdery substance F from the opening hole 26 is achieved. It is increasing.
An opening 45 is provided at a predetermined position of the lower outer case 32, and an inspection lid 46 is provided in the opening 45 (FIGS. 3 and 4).

所定位置の開口部４５は、底面から見て下部外側ケース３２の全周の略半分の大きさで、分離排気部１７の上側漏斗部３０から外した下側漏斗部３１を機外に取り出せる大きさに形成した大型開口部４５Ａとしている（図４）。
そのため、点検蓋４６を外すことにより、大型開口部４５Ａから分離排気部１７の下側漏斗部３１を露出させてメンテナンス作業を行えるだけでなく、下部外側ケース３２から下側漏斗部３１を取り外してのメンテナンス作業を可能にしている。
また、大型開口部４５Ａに対峙する部分の下部外側ケース３２には小型開口部４５Ｂを設ける。 The opening 45 at a predetermined position is approximately half the size of the entire circumference of the lower outer case 32 when viewed from the bottom, and is large enough to take out the lower funnel portion 31 removed from the upper funnel portion 30 of the separation exhaust portion 17 to the outside of the machine. The large opening 45A is formed as shown in FIG.
Therefore, by removing the inspection lid 46, not only can the lower funnel portion 31 be exposed from the large opening 45A but the lower funnel portion 31 is exposed, the lower funnel portion 31 can be removed from the lower outer case 32. Maintenance work is possible.
Further, a small opening 45B is provided in the lower outer case 32 at a portion facing the large opening 45A.

そのため、大型開口部４５Ａの点検蓋４６を外しても露出できない反対側の分離排気部１７の部分のメンテナンスを、点検蓋４６を外して小型開口部４５Ｂを開口させることにより行うことができ、メンテナンス作業を容易にしている。
４６Ａは大型開口部４５Ａを閉塞する大型点検蓋、４６Ｂは小型開口部４５Ｂを閉塞する小型点検蓋である。
また、上部外側ケース１９の所定位置には開口部４５を設け、各開口部４５には所謂観音開きの点検蓋４６を開閉自在に設けている。
４８は点検蓋４６に設けた取っ手である。 Therefore, the maintenance of the part of the separation exhaust part 17 on the opposite side that cannot be exposed even if the inspection cover 46 of the large opening 45A is removed can be performed by removing the inspection cover 46 and opening the small opening 45B. It makes work easier.
46A is a large inspection lid that closes the large opening 45A, and 46B is a small inspection lid that closes the small opening 45B.
Further, an opening 45 is provided at a predetermined position of the upper outer case 19, and a so-called double door inspection lid 46 is provided in each opening 45 so as to be freely opened and closed.
A handle 48 is provided on the inspection lid 46.

上側排気分岐管４０と下側排気分岐管４３を接続した排気側搬送筒４２には、穀粒分離装置１２（粉状物除去部２５）で分離されて搬送された粉状物Ｆを、搬送風から分離させる粉状物分離装置（ダスト用サイクロン）５０を設ける（図１）。
粉状物分離装置５０の構成は任意であり、粉状物分離装置５０の排出部には、送風装置２の排気口に接続した排気筒５１の中間部を接続し、粉状物分離装置５０で分離した粉状物Ｆを排気筒５１により粉状物回収部５２に搬送する。 The exhaust side transport cylinder 42 connected to the upper exhaust branch pipe 40 and the lower exhaust branch pipe 43 transports the powdery substance F separated and transported by the grain separator 12 (powder removal part 25). A powder separation device (dust cyclone) 50 for separating from the wind is provided (FIG. 1).
The configuration of the powder separation device 50 is arbitrary, and the discharge portion of the powder separation device 50 is connected to the middle part of the exhaust pipe 51 connected to the exhaust port of the blower 2, and the powder separation device 50. The powdery substance F separated in step 1 is conveyed to the powdery substance recovery unit 52 by the exhaust pipe 51.

（実施形態の作用）
本発明は、上記構成であり、張り込みホッパー１０の張り込みシャッター（図示省略）を閉じて張り込みホッパー１０に穀粒Ｔを張り込み、次に、空気通路開閉用バルブを閉状態にして送風装置２に通電し、送風装置２に通電後空気通路開閉用バルブを開くと、搬送筒１内の空気が送風装置２により吸引され、これにより、穀粒分離装置１２の吸引室２７内が負圧になり、吸引室２７は分離排気部１７の開口孔２６を介して取入部１５および分離排気部１７内を負圧にし、張り込みホッパー１０内の穀粒Ｔは搬送筒１内に吸引され、搬送筒１内を流れる吸引風により供給側搬送筒２０を経由して供給側接続ノズル２１に至る。 (Operation of the embodiment)
The present invention has the above-described configuration. The tension shutter (not shown) of the tension hopper 10 is closed and the grain T is tensioned to the tension hopper 10, and then the air passage opening / closing valve is closed to energize the blower 2 Then, when the air passage opening / closing valve is opened after energization of the blower 2, the air in the transport cylinder 1 is sucked by the blower 2, whereby the suction chamber 27 of the grain separator 12 becomes negative pressure, The suction chamber 27 creates a negative pressure in the intake portion 15 and the separation exhaust portion 17 through the opening hole 26 of the separation exhaust portion 17, and the grain T in the tension hopper 10 is sucked into the conveyance cylinder 1 and is contained in the conveyance cylinder 1. To the supply-side connection nozzle 21 via the supply-side transport cylinder 20 by the suction air flowing through the supply air.

供給側接続ノズル２１は穀粒分離装置１２の取入部１５に接続され、供給側接続ノズル２１は取入部１５の接線方向に開口しているから、穀粒Ｔは供給側接続ノズル２１から搬送風と共に取入部１５内に吹き込まれ、吹き込んだ搬送風は取入部１５内で渦流となって減圧（減速）される。
搬送風は分離排気部１７の開口孔２６から吸引室２７を抜けて上側排気分岐管４０と下側排気分岐管４３とを介して排気側搬送筒４２に排気され、穀粒Ｔは下方の分離排気部１７内に落下し、分離排気部１７からロータリーバルブ１８に流入し、搬送風と穀粒Ｔとが分離される。 Since the supply-side connection nozzle 21 is connected to the intake portion 15 of the grain separation device 12 and the supply-side connection nozzle 21 opens in the tangential direction of the intake portion 15, the grain T is conveyed from the supply-side connection nozzle 21 to the conveying wind. At the same time, the air blown into the intake portion 15 is vortexed in the intake portion 15 and depressurized (decelerated).
The conveying air passes through the suction chamber 27 from the opening hole 26 of the separation exhaust part 17 and is exhausted to the exhaust side conveying cylinder 42 through the upper exhaust branch pipe 40 and the lower exhaust branch pipe 43, and the grain T is separated downward. It falls into the exhaust part 17 and flows into the rotary valve 18 from the separation exhaust part 17, and the conveying wind and the grain T are separated.

しかして、穀粒分離装置１２には糠あるいはふすま等の穀粒Ｔ表面が削られて発生する粉状物Ｆを除去する粉状物除去部２５を設け、この粉状物除去部２５は、従来のような穀粒Ｔの表面を磨く専用の研米装置のようなものではなく、穀粒空気搬送装置Ｈの一部として使用する穀粒分離装置１２内に設けているので、穀粒分離装置１２は、穀粒Ｔと搬送風とを分離させる際に、粉状物除去部２５により、穀粒Ｔ表面から遊離した粉状物Ｆのみならず、穀粒Ｔ表面部分から遊離すると糠あるいはふすま等になる表層物（粉状物Ｆ）をも除去する。   Thus, the grain separation device 12 is provided with a powdery substance removing unit 25 for removing the powdery substance F generated by cutting the surface of the grain T such as rice bran or bran. Since it is provided in the grain separation device 12 used as a part of the grain air conveying device H, it is not like a conventional rice polishing device for polishing the surface of the grain T. When the apparatus 12 separates the grain T and the conveying wind, the powdery substance removing unit 25 causes not only the powdery substance F released from the surface of the grain T but also the rice cake or The surface layer (powder F) that becomes bran is also removed.

それゆえ、通常の穀粒Ｔの空気搬送装置Ｈであっても使用できるが、一旦精白作業された穀粒Ｔの搬送に使用すると、搬送中の穀粒Ｔの表層の糠あるいはふすま等の表層物の除去が可能となり、特に、飼料や菓子の原料となる屑米等の搬送に使用すると、搬送中に生じる粉状物Ｆの除去ができ、専用の粉状物除去部を不要とし、設備投資を低くでき、設置効果が高い。
粉状物除去部２５は、分離排気部１７の一部に穀粒Ｔが通過しない開口孔２６を多数形成しているので、粉状物除去部２５は、分離排気部１７内にて搬送風の渦流中の穀粒Ｔ同士の衝突と、渦流の搬送風による穀粒Ｔが開口孔２６に積極的に摺接することにより、穀粒Ｔ表面の摺接効果を高め、穀粒Ｔ表面に付着している粉状物Ｆを擦り取り、穀粒Ｔから粉状物Ｆを分離除去する。 Therefore, although it can be used even with the normal air conveying device H of the grain T, once it is used for conveying the grain T that has been refined, the surface layer such as straw or bran of the surface of the grain T being conveyed It is possible to remove foodstuffs, especially when used to transport waste rice and other raw materials for feeds and confectionery, it is possible to remove the powdery material F generated during transportation, eliminating the need for a dedicated powdery material removal unit. The investment can be reduced and the installation effect is high.
Since the powdery substance removing unit 25 has a large number of opening holes 26 through which the grain T does not pass in a part of the separation exhaust part 17, the powdery substance removal part 25 is transported in the separation exhaust part 17. When the grains T in the vortex of the vortex collide with each other and the grain T due to the vortex-carrying wind positively contacts the opening hole 26, the sliding effect on the surface of the grain T is enhanced and the grain T adheres to the surface of the grain T. The powdered product F is scraped off, and the powdered product F is separated and removed from the grain T.

すなわち、取入部１５から分離排気部１７に落下する穀粒Ｔは、渦流の搬送風により渦状に分離排気部１７の内周面に摺接しながら流下し、摺接するときの抵抗により穀粒Ｔ表面の付着物が除去される。
また、分離排気部１７は下方に至るに従い細くなる漏斗形状に形成し、分離排気部１７に開口孔２６が形成されているので、分離排気部１７の内周面（傾斜面）を流下するときに開口孔２６から穀粒Ｔより小さい（細かい）粉状物Ｆを排出（落下）させる粒径選別が行われ、粉状物Ｆの除去効率を向上させている。 That is, the grain T falling to the separation exhaust part 17 from the intake part 15 flows down while slidably contacting the inner peripheral surface of the separation exhaust part 17 by a vortex-conveying wind, and the surface of the grain T is caused by the resistance when sliding. The deposits are removed.
Further, the separation exhaust part 17 is formed in a funnel shape that becomes thinner as it goes downward, and the opening 26 is formed in the separation exhaust part 17, so that when the internal exhaust surface (inclined surface) of the separation exhaust part 17 flows down The particle size selection is performed to discharge (fall) the powdered material F smaller (fine) than the grain T from the opening hole 26, and the removal efficiency of the powdered material F is improved.

この場合、開口孔２６の周縁を、所謂エッジと言われる鋭利な角部２８とすると、穀粒Ｔが衝突する際、穀粒Ｔの付着粉状物Ｆの削り作用・効果を向上させられ、除去・分離効率が向上して好適である。
また、分離排気部１７は下方に至るに従い小径となる漏斗形状に形成しているので、一層、分離排気部１７の内周面へ渦状に摺接するときの圧力が増加すると共に、摺接時間を長くでき、粉状物Ｆの除去効率を向上させる。
粉状物除去部２５は、分離排気部１７の周囲に吸引室２７を形成して構成しているので、搬送風中の穀粒Ｔから遊離している遊離粉状物Ｆ（糠やふすま）や搬送中に発生した穀粒Ｔ表層物（糠やふすま）は、搬送風と一緒に粉状物除去部２５の分離排気部１７の開口孔２６から吸引室２７を通って排出される。 In this case, when the peripheral edge of the opening hole 26 is a sharp corner portion 28 called a so-called edge, when the grain T collides, the cutting action / effect of the adhered powdery substance F of the grain T can be improved, The removal / separation efficiency is improved, which is preferable.
Further, since the separation exhaust part 17 is formed in a funnel shape whose diameter in accordance leading downwards, more, as the pressure at which sliding contact with the spiral to the inner peripheral surface of the separator exhaust part 17 is increased, sliding contact time And the removal efficiency of the powdery substance F is improved.
Since the powdery substance removing unit 25 is configured by forming a suction chamber 27 around the separation exhaust unit 17, a free powdery substance F (rice cake or bran) that is released from the grain T in the conveying wind. In addition, the grain T surface layer (rice cake or bran) generated during the conveyance is discharged through the suction chamber 27 from the opening hole 26 of the separation exhaust part 17 of the powdery substance removal unit 25 together with the conveyance wind.

この場合、取入部１５が無孔板により形成され、取入部１５には排気口を設けていないので、取入部１５に入った搬送風は開口孔２６からのみ吸引室２７に排気される。
したがって、吸引室２７における吸引力を向上させて、開口孔２６から排出される粉状物Ｆを吸引室２７に吸引排除でき、粒径選別効率を向上させて、粉状物Ｆの除去（回収・排出）効率を向上させる。
また、分離排気部１７の内周に摺接しながら下方に移動する穀粒Ｔには、分離排気部１７内の搬送風の渦流の遠心力と吸引室２７における吸引力とが相俟って作用し、一層、穀粒Ｔは分離排気部１７の内周に外側に押し付けられるように移動中に吸引されるて、穀粒Ｔ表面の付着物の除去および粉状物Ｆの排出を促進させる。 In this case, since the intake portion 15 is formed of a non-perforated plate and the intake portion 15 is not provided with an exhaust port, the conveying air that has entered the intake portion 15 is exhausted to the suction chamber 27 only from the opening hole 26.
Accordingly, the suction force in the suction chamber 27 can be improved, and the powdery substance F discharged from the opening hole 26 can be sucked into the suction chamber 27, and the particle size sorting efficiency can be improved to remove (recover) the powdery substance F.・ Discharge) Improve efficiency.
Further, the centrifugal force of the vortex of the conveying wind in the separation exhaust unit 17 and the suction force in the suction chamber 27 act on the grain T that moves downward while being in sliding contact with the inner periphery of the separation exhaust unit 17. In addition, the grain T is sucked during the movement so as to be pressed outward on the inner periphery of the separation exhaust part 17, thereby promoting the removal of the deposits on the surface of the grain T and the discharge of the powdery substance F.

したがって、取入部１５から分離排気部１７に入った穀粒Ｔには、穀粒Ｔの自重と、搬送風の渦の風力（遠心力）と、分離排気部１７から該分離排気部１７の周囲の吸引室２７に吹き抜ける吸引力が作用して、粉状物Ｆの除去（選別）が良好に行える。
また、粉状物除去部２５は、分離排気部１７の外周の吸引室２７から横向きに搬送風を吸引し、分離排気部１７の外側の吸引室２７内で排気の一部を上昇させるので、従来のサイクロンと相違して分離排気部１７内で上昇方向の渦流の発生はなく、従来のような分離排気部１７内で穀粒Ｔが浮遊することがなく、それゆえ、「浮遊残留現象」の発生も防止でき、その結果、送風装置２を停止させなくても、分離排気部１７内の穀粒Ｔを全部排出させることができる。 Therefore, the grain T entering the separation exhaust part 17 from the intake part 15 includes the weight of the grain T, the vortex wind (centrifugal force) of the conveying wind, and the separation exhaust part 17 and the surroundings of the separation exhaust part 17. The suction force that blows through the suction chamber 27 acts, and the removal (selection) of the powdery substance F can be performed satisfactorily.
In addition, since the powdery substance removing unit 25 sucks the conveyance air sideways from the suction chamber 27 on the outer periphery of the separation exhaust unit 17 and raises a part of the exhaust in the suction chamber 27 outside the separation exhaust unit 17, Unlike the conventional cyclone, no upward vortex flow is generated in the separation exhaust part 17, and the grain T does not float in the separation exhaust part 17 as in the prior art. Therefore, the “floating residual phenomenon” As a result, all the grains T in the separation exhaust part 17 can be discharged without stopping the blower 2.

分離排気部１７の外周と穀粒分離装置１２の下部外側ケース３２の内周面との間に、粉状物除去部２５の吸引室２７を形成し、吸引室２７は仕切板２９と吸引室２７の下方のロータリーバルブ１８と下部外側ケース３２により密閉状態に包囲されて形成すると共に、吸引室２７の上下両側から吸引する構成としているので、分離排気部１７内を吸引する吸引室２７の吸引力を高めて粉状物Ｆの排出効率を高めると共に、吸引室２７内における粉状物Ｆの残留を抑制でき、メンテナンスを容易にできる。
すなわち、単に、吸引室２７内を上方から吸引するだけでは、吸引斑が生じ、この吸引斑のある部分に粉状物Ｆが付着してやがて残留粉状物Ｆとして堆積してしまうが、吸引室２７内を上下両側から吸引することにより、粉状物Ｆの除去効率を向上させつつ、粉状物Ｆの残留を抑制できる。 Between the outer periphery of the separation exhaust part 17 and the inner peripheral surface of the lower outer case 32 of the grain separation device 12, a suction chamber 27 of the powdery substance removal unit 25 is formed, and the suction chamber 27 has a partition plate 29 and a suction chamber. 27 is enclosed in a sealed state by a rotary valve 18 and a lower outer case 32, and suction is performed from both the upper and lower sides of the suction chamber 27. Therefore, the suction of the suction chamber 27 that sucks the inside of the separation exhaust portion 17 is performed. While increasing the force to increase the discharge efficiency of the powdery substance F, the residual of the powdery substance F in the suction chamber 27 can be suppressed, and maintenance can be facilitated.
That is, if the suction chamber 27 is simply sucked from above, suction spots are generated, and the powdery substance F adheres to the portions with the suction spots and eventually accumulates as the residual powdery substance F. By sucking the inside of the chamber 27 from both the upper and lower sides, it is possible to improve the removal efficiency of the powdery substance F and to suppress the residue of the powdery substance F.

具体的には、吸引室２７の上部の仕切板２９には、複数の上側排気分岐管４０の下部を接続し、各上側排気分岐管４０の上部は上部外側ケース１９の上部に設けた排気側接続ノズル４１の一端に集約して接続し、排気側接続ノズル４１の他端は排気側搬送筒４２に接続しているので、吸引室２７の上側は複数の上側排気分岐管４０により吸引排気されて、排気風により粉状物Ｆを排出する。
また、吸引室２７の下方のロータリーバルブ１８の上方の下部外側ケース３２には複数の下側排気分岐管４３の一端を接続し、各下側排気分岐管４３の他端は中間排気管４４の一端側に集約して接続し、中間排気管４４の他端は排気側搬送筒４２に接続しているので、吸引室２７の下側は複数の下側排気分岐管４３により吸引室２７を下側に吸引排気し、粉状物Ｆを排出する。 Specifically, the lower part of the plurality of upper exhaust branch pipes 40 is connected to the partition plate 29 at the upper part of the suction chamber 27, and the upper part of each upper exhaust branch pipe 40 is an exhaust side provided on the upper part of the upper outer case 19. Since one end of the connection nozzle 41 is collectively connected and the other end of the exhaust side connection nozzle 41 is connected to the exhaust side transfer cylinder 42, the upper side of the suction chamber 27 is sucked and exhausted by a plurality of upper exhaust branch pipes 40. Then, the powdery substance F is discharged by the exhaust air.
One end of a plurality of lower exhaust branch pipes 43 is connected to the lower outer case 32 above the rotary valve 18 below the suction chamber 27, and the other end of each lower exhaust branch pipe 43 is connected to the intermediate exhaust pipe 44. Since the other end of the intermediate exhaust pipe 44 is connected to the exhaust-side transfer cylinder 42, the lower side of the suction chamber 27 is lowered by the plurality of lower exhaust branch pipes 43. Suction and exhaust to the side, and the powdery substance F is discharged.

また、複数の上側排気分岐管４０と下側排気分岐管４３は、円周方向に所定間隔をおいてそれぞれ取付接続しているので、吸引室２７内は、上下方向のみならず、円周方向における吸引風の均平化を図ることができ、この点でも、穀粒Ｔ表面の粉状物Ｆの除去効率を高めると共に、粉状物Ｆの残留を抑制してメンテナンスを容易にすることができる。   Further, since the plurality of upper exhaust branch pipes 40 and the lower exhaust branch pipes 43 are connected to each other at a predetermined interval in the circumferential direction, the inside of the suction chamber 27 is not only in the vertical direction but also in the circumferential direction. In this respect, it is possible to improve the removal efficiency of the powdery substance F on the surface of the grain T and to suppress the residual of the powdery substance F to facilitate maintenance. it can.

このように、本願の粉状物除去部２５は、分離排気部１７の周囲で上下側から吸引される吸引室２７の吸引風と分離排気部１７の開口孔２６から吸引室２７に向けて流れる分離排気部１７内の搬送風の渦流風とにより、穀粒Ｔを分離排気部１７の内周面に当接させることができ、穀粒Ｔ表面の粉状物Ｆの除去効率を高めると共に、粉状物Ｆの残留を抑制してメンテナンスを容易にすることができ、また、一台の送風装置２により、穀粒Ｔの搬送と、穀粒Ｔから粉状物Ｆや米粉等の粉塵の除去と、粉状物Ｆの回収を連続的に行える。   Thus, the powdery substance removing unit 25 of the present application flows toward the suction chamber 27 from the suction air of the suction chamber 27 sucked from the upper and lower sides around the separation exhaust unit 17 and the opening hole 26 of the separation exhaust unit 17. The grain T can be brought into contact with the inner peripheral surface of the separation exhaust part 17 by the vortex wind of the conveying wind in the separation exhaust part 17, and the removal efficiency of the powdery substance F on the surface of the grain T is increased. The maintenance of the powdery substance F can be suppressed and the maintenance of the powdery substance F can be facilitated. Also, the single blower 2 can convey the grain T and the dust T such as the powdery substance F and rice flour from the grain T. Removal and collection of the powdery substance F can be performed continuously.

穀粒分離装置１２の粉状物除去部２５により搬送穀粒Ｔから分離した粉状物Ｆは、搬送筒１の排気側搬送筒４２により粉状物分離装置５０に搬送し、粉状物分離装置５０にて搬送された粉状物Ｆを搬送風から分離させる。
この粉状物分離装置５０で分離された粉状物Ｆは、粉状物分離装置５０の排出部に接続した送風装置２の排気筒５１により粉状物回収部５２に圧送して回収する。
一方、粉状物Ｆが除去されて空気と分離された穀粒Ｔは貯留タンク１１内に入り、貯留タンク１１から色彩選別作業や計量・袋詰め作業等の次工程Ｇに供給される。 The powdery substance F separated from the conveyed grain T by the powdery substance removing unit 25 of the grain separation apparatus 12 is conveyed to the powdery substance separation apparatus 50 by the exhaust side conveyance cylinder 42 of the conveyance cylinder 1 and separated into powdery substances. The powdery substance F conveyed by the apparatus 50 is separated from the conveying air.
The powdery substance F separated by the powdery substance separation apparatus 50 is recovered by being pumped to the powdery substance recovery part 52 by the exhaust cylinder 51 of the blower 2 connected to the discharge part of the powdery substance separation apparatus 50.
On the other hand, the grain T from which the powdery substance F has been removed and separated from the air enters the storage tank 11 and is supplied from the storage tank 11 to the next process G such as color selection work or weighing / bagging work.

その結果、穀粒空気搬送装置Ｈの空気搬送の搬送機構のうちの、穀粒Ｔと搬送風とを分離させる穀粒分離装置１２に粉状物Ｆを除去する粉状物除去部２５を内蔵させ、穀粒分離装置１２の搬送風の減衰機構を粉状物除去部２５の分離機構に兼用させることができ、合理的構成となる。
また、粉状物除去部２５を有する穀粒分離装置１２を空気搬送装置Ｈの搬送経路に組み込むことにより、穀粒Ｔの搬送と粉状物Ｆの除去（選別）と粉状物Ｆの回収とを、穀粒搬送中に行うことができる。 As a result, of the air conveyance conveyance mechanism of the grain air conveyance device H, the powder separation unit 25 that removes the powder F is incorporated in the grain separation device 12 that separates the grain T and the conveyance air. Therefore, the attenuation mechanism of the conveying wind of the grain separation device 12 can be used also as the separation mechanism of the powdery substance removing unit 25, and a rational configuration is obtained.
Moreover, by incorporating the grain separation device 12 having the powdery substance removing unit 25 into the conveyance path of the air conveying apparatus H, the conveyance of the grain T, the removal (selection) of the powdery substance F, and the recovery of the powdery substance F. Can be performed during grain conveyance.

分離排気部１７は取入部１５の下部に設けるが、取入部１５は前記穀粒分離装置１２の上部外側ケース１９の下部に設けた仕切板２９の上面側に着脱自在に取付け、仕切板２９の下面側に分離排気部１７の上側漏斗部３０の上部を着脱自在に取付け、上側漏斗部３０に下側漏斗部３１を着脱自在に取付けているので、上部外側ケース１９から下部外側ケース３２を外し、上側漏斗部３０から下側漏斗部３１を外すことができ、メンテナンスを容易にすることができる。   The separation exhaust part 17 is provided at the lower part of the intake part 15. The intake part 15 is detachably attached to the upper surface side of the partition plate 29 provided at the lower part of the upper outer case 19 of the grain separation device 12. Since the upper part of the upper funnel part 30 of the separation exhaust part 17 is detachably attached to the lower surface side and the lower funnel part 31 is detachably attached to the upper funnel part 30, the lower outer case 32 is removed from the upper outer case 19. The lower funnel portion 31 can be removed from the upper funnel portion 30, and maintenance can be facilitated.

しかして、下部外側ケース３２の所定位置には開口部４５を設け、開口部４５には点検蓋４６を着脱自在に設けているので、点検蓋４６を外すと、分離排気部１７の外周を露出させることができ、付着物の除去等のメンテナンスを容易に行える。
この場合、下部外側ケース３２に設けた開口部４５のうち、一方の大型開口部４５Ａは、図のように、下部外側ケース３２の表面積のほぼ半分の開口面積とし、他方の開口部４５Ｂは１／８面の開口面積として大型開口部４５Ａに対峙させて設けているので、下部外側ケース３２の剛性および吸引室２７の気密性を確保しつつ、メンテナンスを容易にしている。 Since the opening 45 is provided at a predetermined position of the lower outer case 32 and the inspection lid 46 is detachably provided in the opening 45, the outer periphery of the separation exhaust unit 17 is exposed when the inspection lid 46 is removed. Maintenance such as removal of deposits can be easily performed.
In this case, of the openings 45 provided in the lower outer case 32, one large opening 45A has an opening area that is substantially half the surface area of the lower outer case 32, and the other opening 45B is 1 as shown in the figure. Since the opening area of the eighth surface is opposed to the large opening 45A, the rigidity of the lower outer case 32 and the airtightness of the suction chamber 27 are ensured and the maintenance is facilitated.

さらに、下部外側ケース３２の大型開口部４５Ａは、上側漏斗部３０から外した下側漏斗部３１を下部外側ケース３２の機外に取り出せる大きさに形成しているので、開口孔２６を有する下側漏斗部３１の着脱作業を容易にして、メンテナンスを容易にしている。
また、前記開口部４５のうち、上部外側ケース１９の開口部４５に取付けた点検蓋４６は所謂観音開きに開閉自在に取付けているので、取入部１５の周囲のメンテナンスを容易にしている。 Furthermore, the large opening 45A of the lower outer case 32 is formed in such a size that the lower funnel portion 31 removed from the upper funnel portion 30 can be taken out of the lower outer case 32. The attachment and detachment work of the side funnel portion 31 is facilitated to facilitate maintenance.
Moreover, the inspection lid 46 attached to the opening 45 of the upper outer case 19 among the openings 45 is attached so as to be openable and closable so as to be openable and closable, so that maintenance around the intake portion 15 is facilitated.

１…搬送筒、２…送風装置、１０…張り込みホッパー、１１…貯留タンク、１２…穀粒分離装置、１５…取入部、１７…分離排気部、１８…ロータリーバルブ、１９…上部外側ケース、２０…供給側搬送筒、２１…供給側接続ノズル、２２…案内体、２５…粉状物除去部、２６…開口孔、２７…吸引室、２８…角部、２９…仕切板、３０…上側漏斗部、３１…下側漏斗部、３２…下部外側ケース、３３…下側筒部、３５…係合突起、３６…係合溝、３７…係合突起、３８…係合溝、４０…上側排気分岐管、４１…排気側接続ノズル、４２…排気側搬送筒、４３…下側排気分岐管、４４…中間排気管、４５…開口部、４６…点検蓋、４８…取っ手、５０…粉状物分離装置、５１…排気筒、５２…粉状物回収部。   DESCRIPTION OF SYMBOLS 1 ... Conveyance cylinder, 2 ... Blower, 10 ... Overhang hopper, 11 ... Storage tank, 12 ... Grain separation device, 15 ... Intake part, 17 ... Separation exhaust part, 18 ... Rotary valve, 19 ... Upper outer case, 20 DESCRIPTION OF SYMBOLS ... Supply side conveyance cylinder, 21 ... Supply side connection nozzle, 22 ... Guide body, 25 ... Powdery substance removal part, 26 ... Opening hole, 27 ... Suction chamber, 28 ... Corner | angular part, 29 ... Partition plate, 30 ... Upper funnel , 31 ... lower funnel part, 32 ... lower outer case, 33 ... lower cylinder part, 35 ... engagement protrusion, 36 ... engagement groove, 37 ... engagement protrusion, 38 ... engagement groove, 40 ... upper exhaust Branch pipe 41 ... Exhaust side connection nozzle 42 ... Exhaust side transfer cylinder 43 ... Lower exhaust branch pipe 44 ... Intermediate exhaust pipe 45 ... Opening part 46 ... Inspection lid 48 ... Handle 50 ... Powder Separator, 51 ... exhaust pipe, 52 ... powdery substance recovery part.

Claims (7)

張り込みホッパー１０に投入された穀粒Ｔを送風装置２の吸引搬送風により貯留タンク１１に搬送する搬送筒１の端部を、該搬送筒１から取り入れた搬送風を減速する無孔板により密閉された筒形状に形成した取入部１５の上側側部に接続し、該取入部１５の下方に、下部に貯留タンク１１に穀粒Ｔを供給するロータリーバルブ１８を設けた下方に至るに従い細くなる漏斗形状の分離排気部１７を設け、分離排気部１７は、分離排気部１７の一部または全部に形成した開口孔２６と、分離排気部１７の周囲を密閉状に包囲する下部外側ケース３２と、分離排気部１７の外周と下部外側ケース３２の内周との間に形成した吸引室２７とにより、分離排気部１７内で搬送風と穀粒Ｔとを分離しつつ吸引室２７から搬送風を排気する構成とし、前記吸引室２７は、吸引室２７の上下両側から分離排気部１７内の搬送風を吸引排気する構成とした穀粒分離装置。 The end of the transport cylinder 1 that transports the grain T put into the tension hopper 10 to the storage tank 11 by the suction transport wind of the blower 2 is sealed with a non-perforated plate that decelerates the transport air taken from the transport cylinder 1. It connects with the upper side part of the intake part 15 formed in the formed cylindrical shape, and it becomes thin as it goes to the lower part where the rotary valve 18 for supplying the grain T to the storage tank 11 is provided below the intake part 15. A funnel-shaped separation exhaust part 17 is provided. The separation exhaust part 17 includes an opening 26 formed in a part or all of the separation exhaust part 17 and a lower outer case 32 that surrounds the separation exhaust part 17 in a sealed manner. A suction chamber 27 formed between the outer periphery of the separation exhaust part 17 and the inner periphery of the lower outer case 32 separates the transport wind and the grain T in the separation exhaust part 17 and transports the transport wind from the suction chamber 27. was configured to exhaust, the引室27, configured as the grain separator device that sucks exhaust the carrier air in the separation exhaust part 17 from upper and lower sides of the suction chamber 27. 張り込みホッパー１０に投入された穀粒Ｔを送風装置２の吸引搬送風により貯留タンク１１に搬送する搬送筒１の端部を、該搬送筒１から取り入れた搬送風を減速する無孔板により密閉された筒形状に形成した取入部１５の上側側部に接続し、該取入部１５の下方に、下部に貯留タンク１１に穀粒Ｔを供給するロータリーバルブ１８を設けた下方に至るに従い細くなる漏斗形状の分離排気部１７を設け、分離排気部１７は、分離排気部１７の一部または全部に形成した開口孔２６と、分離排気部１７の周囲を密閉状に包囲する下部外側ケース３２と、分離排気部１７の外周と下部外側ケース３２の内周との間に形成した吸引室２７とにより、分離排気部１７内で搬送風と穀粒Ｔとを分離しつつ吸引室２７から搬送風を排気する構成とし、前記吸引室２７の上側には複数の上側排気分岐管４０の一端を接続し、吸引室２７の下側には複数の下側排気分岐管４３の一端を接続した穀粒分離装置。 The end of the transport cylinder 1 that transports the grain T put into the tension hopper 10 to the storage tank 11 by the suction transport wind of the blower 2 is sealed with a non-perforated plate that decelerates the transport air taken from the transport cylinder 1. It connects with the upper side part of the intake part 15 formed in the formed cylindrical shape, and it becomes thin as it goes to the lower part where the rotary valve 18 for supplying the grain T to the storage tank 11 is provided below the intake part 15. A funnel-shaped separation exhaust part 17 is provided. The separation exhaust part 17 includes an opening 26 formed in a part or all of the separation exhaust part 17 and a lower outer case 32 that surrounds the separation exhaust part 17 in a sealed manner. A suction chamber 27 formed between the outer periphery of the separation exhaust part 17 and the inner periphery of the lower outer case 32 separates the transport wind and the grain T in the separation exhaust part 17 and transports the transport wind from the suction chamber 27. was configured to exhaust, the The upper引室27 connects one end of the plurality of upper exhaust branch pipe 40, the grain separation device connected to one end of the plurality of lower exhaust branch pipe 43 on the lower side of the suction chamber 27. 張り込みホッパー１０に投入された穀粒Ｔを送風装置２の吸引搬送風により貯留タンク１１に搬送する搬送筒１の端部を、該搬送筒１から取り入れた搬送風を減速する無孔板により密閉された筒形状に形成した取入部１５の上側側部に接続し、該取入部１５の下方に、下部に貯留タンク１１に穀粒Ｔを供給するロータリーバルブ１８を設けた下方に至るに従い細くなる漏斗形状の分離排気部１７を設け、分離排気部１７は、分離排気部１７の一部または全部に形成した開口孔２６と、分離排気部１７の周囲を密閉状に包囲する下部外側ケース３２と、分離排気部１７の外周と下部外側ケース３２の内周との間に形成した吸引室２７とにより、分離排気部１７内で搬送風と穀粒Ｔとを分離しつつ吸引室２７から搬送風を排気する構成とし、前記下部外側ケース３２の上方には取入部１５を包囲する上部外側ケース１９を設け、上部外側ケース１９の内周と取入部１５の外周の間の空間内に複数の上側排気分岐管４０を配置し、上側排気分岐管４０の下部は密閉された吸引室２７の上部に接続し、密閉された吸引室２７の下部には複数の下側排気分岐管４３の一端を接続した穀粒分離装置。 The end of the transport cylinder 1 that transports the grain T put into the tension hopper 10 to the storage tank 11 by the suction transport wind of the blower 2 is sealed with a non-perforated plate that decelerates the transport air taken from the transport cylinder 1. It connects with the upper side part of the intake part 15 formed in the formed cylindrical shape, and it becomes thin as it goes to the lower part where the rotary valve 18 for supplying the grain T to the storage tank 11 is provided below the intake part 15. A funnel-shaped separation exhaust part 17 is provided. The separation exhaust part 17 includes an opening 26 formed in a part or all of the separation exhaust part 17 and a lower outer case 32 that surrounds the separation exhaust part 17 in a sealed manner. A suction chamber 27 formed between the outer periphery of the separation exhaust part 17 and the inner periphery of the lower outer case 32 separates the transport wind and the grain T in the separation exhaust part 17 and transports the transport wind from the suction chamber 27. was configured to exhaust, the An upper outer case 19 surrounding the intake portion 15 is provided above the outer case 32, and a plurality of upper exhaust branch pipes 40 are arranged in a space between the inner periphery of the upper outer case 19 and the outer periphery of the intake portion 15. The lower part of the upper exhaust branch pipe 40 is connected to the upper part of the sealed suction chamber 27, and one end of a plurality of lower exhaust branch pipes 43 is connected to the lower part of the sealed suction chamber 27 . 請求項３において、前記複数の上側排気分岐管４０と下側排気分岐管４３は、円周方向に所定間隔をおいてそれぞれ吸引室２７に接続した穀粒分離装置。 4. The grain separator according to claim 3 , wherein the plurality of upper exhaust branch pipes 40 and the lower exhaust branch pipes 43 are connected to the suction chamber 27 at predetermined intervals in the circumferential direction. 請求項１または請求項２または請求項３または請求項４において、前記取入部１５の下部は、取入部１５の周囲を包囲する上部外側ケース１９の下部に設けた仕切板２９に取付け、前記分離排気部１７は、仕切板２９に取付けた上側漏斗部３０と、上側漏斗部３０の下部に取付けた下側漏斗部３１とにより上下に分割して形成し、少なくとも、下側漏斗部３１に開口孔２６を形成すると共に、上側漏斗部３０と上部外側ケース１９の下側に設けた下部外側ケース３２側とのそれぞれに対して着脱自在に構成した穀粒分離装置。 According to claim 1 or claim 2 or claim 3 or claim 4, the lower portion of the intake portion 15 is attached to the partition plate 29 provided in the lower portion of the upper outer casing 19 which surrounds the periphery of the intake portion 15, the separation The exhaust part 17 is divided into upper and lower parts by an upper funnel part 30 attached to the partition plate 29 and a lower funnel part 31 attached to the lower part of the upper funnel part 30, and at least opens to the lower funnel part 31. The grain separation device which formed the hole 26 and was comprised detachably with respect to each of the upper outer case 30 and the lower outer case 32 side provided under the upper outer case 19. 請求項５において、前記分離排気部１７の周囲を包囲する下部外側ケース３２の所定位置には、着脱自在の点検蓋４６により閉塞した開口部４５を設け、開口部４５は取り外した下側漏斗部３１を出し入れ可能な大きさに形成した穀粒分離装置。 6. The lower funnel portion according to claim 5 , wherein an opening 45 closed by a removable inspection lid 46 is provided at a predetermined position of the lower outer case 32 surrounding the separation exhaust portion 17, and the opening 45 is removed. A grain separator formed in a size that allows 31 to be taken in and out. 請求項６において、前記下部外側ケース３２に形成した、取り外した下側漏斗部３１を出し入れ可能な大きさの大型開口部４５Ａと対峙する位置の下部外側ケース３２に大型開口部４５Ａよりも小さい小型開口部４５Ｂを形成した穀粒分離装置。 In Claim 6 , the lower outer case 32 formed at the lower outer case 32 and facing the large opening 45A of a size that allows the removed lower funnel 31 to be taken in and out is smaller than the large opening 45A. The grain separator which formed the opening part 45B.

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