JPS604068Y2 - Dust removal device for pressure-fed circulating grain dryer - Google Patents

Description

【考案の詳細な説明】 〔産業上の利用分野〕 本考案は、圧送型循環穀物乾燥機においてワラ屑、枝梗
、芒筐の塵埃除去装置に関するものである。[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a device for removing dust from straw waste, stems, and mandrels in a pressure-fed circulating grain dryer.

〔従来の技術〕[Conventional technology]

この種の乾燥機には、乾燥機筐体を密閉して吸引ファン
で熱風を吸引しながら穀物層中を通過させるようにした
全閉吸引型と、乾燥室を多孔板で構成して圧送ファンで
熱風を圧送しながら穀物層中を通過させるようにした開
放圧送型がある。There are two types of dryers: the fully enclosed suction type, in which the dryer housing is sealed and a suction fan is used to suck hot air while passing it through the grain layer; There is an open pressure feeding type in which hot air is forced through the grain layer.

ところで、前者の全閉吸引型は、乾燥機筐体を気密構造
にする必要があって構造が複雑化すると共に、高価なも
のになる欠点がある。By the way, the former fully enclosed suction type has the disadvantage that the dryer housing needs to be airtight, which complicates the structure and makes it expensive.

後者の開放圧送型では、そのような不具合が解消される
が、乾燥室の側方から排風と共に微細なワラ屑や短少化
した枝梗を含む夾雑物が排出して、烏合の床面に落下堆
積し、作業環境が悪くなるという問題があった。The latter open pressure feeding type eliminates such problems, but with the exhaust air from the side of the drying room, foreign matter including fine straw waste and shortened stems is discharged and deposited on the floor of the drying room. There was a problem that the work environment was worsened by falling and accumulating.

〔考案の目的〕[Purpose of invention]

本考案は、このような問題を除去すべくなされたもので
、穀物が乾燥室から貯蔵室に還元される循環系路中の塵
埃発生の激しい箇所に吸塵機を装備し、乾燥室の穀物流
下通路の外側に多孔板を２重に張りして塵埃落下通路を
形威し、この通路で微風となった排風と共に排出される
微細な塵埃を、分離途去するようにした圧送型循環穀物
乾燥機の塵埃除去装置を提供するほのである。The present invention was developed to eliminate such problems, and is equipped with a dust suction machine at a place where dust is generated heavily in the circulation path where grain is returned from the drying room to the storage room. A pressure-fed circulating grain system in which a perforated plate is placed twice on the outside of the passage to form a dust fall passage, and the fine dust that is discharged along with the exhaust air that becomes a breeze is separated and removed. Hono provides dust removal equipment for dryers.

〔実施例〕〔Example〕

以下、図面を参照して本考案の、実施例を具体的に説明
する。Hereinafter, embodiments of the present invention will be specifically described with reference to the drawings.

図において、符号１は乾燥機筐体であり、この乾燥機筐
体１の上から下に順次穀物貯蔵室２、乾燥室３、集穀室
４が配設され、穀物貯留室２の上に配穀装置５が設けら
れ、集穀室４の下部に排穀装置６が設けられて、これら
の装置５，６間に乾燥機筐体外で揚穀機７が連設されて
いる。In the figure, reference numeral 1 is a dryer housing, and a grain storage room 2, a drying room 3, and a grain collection room 4 are sequentially arranged from the top to the bottom of this dryer housing 1, and above the grain storage room 2. A grain distribution device 5 is provided, a grain threshing device 6 is provided in the lower part of the grain collecting room 4, and a grain lifting machine 7 is connected between these devices 5 and 6 outside the dryer housing.

乾燥室３は内部中心の長手方向全域に多孔板８による熱
風導入風路９が形成されて、その風路９の一端に圧送フ
ァン１０を有する熱風発生機１１が設けられている。In the drying chamber 3, a hot air introduction air passage 9 is formed by a perforated plate 8 throughout the longitudinal direction of the interior center, and a hot air generator 11 having a pressure fan 10 is provided at one end of the air passage 9.

風路９の左右両側には多孔板８と乾燥機筐体側壁部の多
孔板１２により形成される穀物流下通路１３が設けられ
、穀物貯留室２からの穀物を２分割して通路１３中に流
下させ、この通路１３の穀物層へ熱風を通ずるようにな
っている。Grain flow passages 13 formed by perforated plates 8 and perforated plates 12 on the side walls of the dryer casing are provided on both left and right sides of the air passage 9, and the grains from the grain storage chamber 2 are divided into two parts and transferred into the passages 13. The hot air is made to flow down to the grain layer in this passage 13.

また、多孔板１２の内側には、他の多孔板１４が所定の
隙間を有して２重に張設されて塵埃落下通路１５を形成
するようになっており、且つ多孔板１４の上端部を閉塞
するとともに、下端部１４ａは開放して通路１５を上記
通路１３に連設させ、されに上記下端部１４ａは多孔板
１２の下端部１２ａより下方に延設されている。Further, inside the perforated plate 12, another perforated plate 14 is stretched in two layers with a predetermined gap to form a dust fall passage 15, and the upper end of the perforated plate 14 The lower end 14a is opened to connect the passage 15 to the passage 13, and the lower end 14a extends downward from the lower end 12a of the perforated plate 12.

集穀室４は、上記穀物流下通路１３．と連通して両者の
間に設けられている繰出ロール１６で間欠的に繰出され
る穀物を樋１７に集合させるものであり、この樋１７の
底に、排穀装置９の搬出用スクリューコンベア１８が穀
物を揚穀機７に搬送すべき設置されている。The grain collection room 4 includes the grain flow passage 13. Grain that is intermittently fed out by a feeding roll 16 provided between the two in communication with the two is collected in a gutter 17, and at the bottom of this gutter 17, a screw conveyor 18 for carrying out the grain threshing device 9 is installed. is installed to convey the grain to the grain lifting machine 7.

配穀装置５は、揚穀機７に連通して穀物貯留室２の頂部
に装架される樋１９の内部に配穀用のスクリューコンベ
ア２０が挿入され、樋１９の底に穀物落下口２１が複数
個穿設されて、その落下口２１にはシャッタ２２が開閉
すべく取付けられ、揚穀物７により排出される穀物を前
桟に均分して穀物貯留室２に還元するようになっている
。In the grain distribution device 5, a screw conveyor 20 for grain distribution is inserted into a gutter 19 connected to the grain lifting machine 7 and installed at the top of the grain storage chamber 2, and a grain drop port 21 is provided at the bottom of the gutter 19. A shutter 22 is attached to the drop opening 21 to open and close it, and the grains discharged by the fried grains 7 are evenly distributed to the front rail and returned to the grain storage chamber 2. There is.

そして、このような樋１９の揚穀機７近傍の穀物循環中
膜も塵埃発生の激しい個所に吸塵機２３が取付けられて
いる。A dust suction device 23 is also installed in the grain circulating membrane of the gutter 19 near the grain lifting machine 7 at a location where dust is generated heavily.

このように構成されることで、穀物貯留室２に収容する
穀物が乾燥室３の穀物流下通路１３を流下し、繰出ロー
ル１６で集穀室４に排出され、その後、排穀装置６のス
クリューコンベア１８により揚穀機７の方へ搬送されて
、その揚穀機７で１部の配穀装置５における樋１９に導
入され、配穀用のスクリューコンベア２０で穀物貯留室
２に再び還元して循環される。With this configuration, the grain stored in the grain storage chamber 2 flows down the grain flow passage 13 of the drying chamber 3, is discharged to the grain collection chamber 4 by the feed roll 16, and then The grain is conveyed by the conveyor 18 to the grain lifting machine 7, introduced into the gutter 19 of one part of the grain distribution device 5 by the grain raising machine 7, and returned to the grain storage chamber 2 by the grain distribution screw conveyor 20. is circulated.

そして、このような穀物循還中に、揚穀機７から配穀装
置５の樋１９に勢いよく穀物が排出されることで、最も
激しく発生するワラ屑、枝梗、芒等の塵埃が吸塵機２３
により迅速且つ効果的に吸引除去される。During such grain circulation, the grain is vigorously discharged from the grain lifting machine 7 to the gutter 19 of the grain rationing device 5, and the most intensely generated dust such as straw waste, stems, awns, etc. is absorbed into the dust. Machine 23
can be quickly and effectively removed by suction.

また、乾燥室３では、内部中心の熱風導入風路９と穀物
流下通路１３が多孔板８，１２で形成されて乾燥機筐体
外と連通した状態になっていることで熱風発生機１１に
より生じて圧送ファン１０で圧送される熱風が風路９か
ら通路１３の穀物層中を通過し、これによりその穀物の
乾燥が行なわれる。In addition, in the drying room 3, the hot air introduction air passage 9 and the grain flow passage 13 at the center of the interior are formed by perforated plates 8 and 12 and are in communication with the outside of the dryer casing. The hot air forced by the pressure fan 10 passes through the grain layer in the passage 13 from the air passage 9, thereby drying the grain.

ところで、このどき通路１３の穀物層中を通過する熱風
、ちまり、気流は通路面積の狭い各穀粒間を流通するの
で速度は高くなり、穀物中に混入している小さな塵埃は
この気流に乗ることになる。By the way, the hot air, dust, and air current passing through the grain layer in the passage 13 are flowing between each grain with a narrow passage area, so the speed is high, and the small dust mixed in the grain is carried away by this air flow. I'll be riding it.

そして、乾燥機筐体外に熱風が排風となって排出される
際に、微細なワラ屑等の塵埃も、−緒に運び出すように
なるが、多孔板１４から排出された直後の排風の速度は
、通路面積が極めて広く、かつ大気状態にある塵埃落下
通路１５内に拡散されることになって非常に遅く微風程
度に減速する。When the hot air is discharged as exhaust air outside the dryer housing, dust such as fine straw waste is also carried away, but the exhaust air immediately after being discharged from the perforated plate 14 Since the dust is diffused into the dust falling passage 15, which has an extremely wide passage area and is in an atmospheric condition, the speed is reduced to the level of a slight breeze.

このため、多量の塵埃を含んだ排風が通路１５を通る過
程で気体と固体の分離が行われ１、排風はそのまま外側
の多孔板１２を通って乾燥機筐体外に排出され、排風よ
り重い固体の塵埃は通路１５内に落下沈降して通路１３
の穀物と混合し、且つ循環して、やがて吸塵機２３によ
り吸引除去されるのである。Therefore, as the exhaust air containing a large amount of dust passes through the passage 15, gas and solids are separated 1, and the exhaust air is directly discharged outside the dryer housing through the outer perforated plate 12. Heavier solid dust falls into the passage 15 and settles down to the passage 13.
The dust is mixed with the grains, circulated, and eventually removed by suction by the dust suction machine 23.

また、本実施例のように、多孔板１２内方に間隙をおい
て多孔板１４を配置するとともに、多孔板１４の下端１
４ａを外側の多孔板１２の下端１２ａよりも下方に延設
する構成にすれば、多孔板１４の下部外方は乾燥機筐体
１の側壁により閉鎖され、これにより塵埃落下通路１５
の下部では排風が微風状態で上昇するようになる。Further, as in this embodiment, the perforated plate 14 is arranged with a gap inward of the perforated plate 12, and the lower end of the perforated plate 14 is
4a extends below the lower end 12a of the outer perforated plate 12, the lower outer part of the perforated plate 14 is closed by the side wall of the dryer housing 1, and thereby the dust falling passage 15
At the bottom, the exhaust air rises in a light breeze.

このため、上記通路１５の下部では、塵埃を外側方に流
動する分力が発生せず、かつ塵埃の筐体外への流出を筐
体の側壁で阻止することになる。Therefore, in the lower part of the passage 15, no component force is generated that causes the dust to flow outward, and the side wall of the housing prevents the dust from flowing out of the housing.

従って、塵埃落下通路１５内で自重落下する塵埃の回収
作用が増大することになる。Therefore, the collection effect of the dust falling under its own weight in the dust falling passage 15 is increased.

このようにして回収された塵埃は、吸塵期２３により外
部に除去されることになる。The dust thus collected is removed to the outside during the dust collection period 23.

〔考案の効果〕 以上説明したように本考案の圧送型循環穀物乾燥機の塵
埃除去装置によれば、穀物が乾燥室から貯留室に還元さ
れる循環系路中に吸塵機を設け、また、乾燥室の乾燥機
筐体側壁部の多孔板内側に所定の隙間を保持して他の多
孔板を内張すして塵埃落下通路を形威し、この通路の上
端を閉塞し、下端部を穀物流下通路に連通させたので、
乾燥中の穀物に混入している塵埃は機外に排出されるこ
となく塵埃落下通路を落下し、穀物と混合して穀物流下
通路から揚穀機を介して貯留室に還元される際に吸塵機
により除去される。[Effects of the invention] As explained above, according to the dust removal device for a pressure-fed circulating grain dryer of the present invention, a dust suction device is provided in the circulation path where grain is returned from the drying chamber to the storage chamber, and A predetermined gap is maintained inside the perforated plate on the side wall of the dryer casing in the drying room, and another perforated plate is lined to form a passage for dust to fall.The upper end of this passage is closed, and the lower end is used for grain Because it communicated with the downstream passage,
The dust mixed in with the grain being dried falls through the dust fall passage without being discharged outside the machine, mixes with the grain, and is collected when returned from the grain flow passage to the grain lifting machine and into the storage chamber. removed by the machine.

従って、安価な圧送型循環穀物乾燥機でありながら、全
閉吸引型乾燥機と同様の清潔な環境で乾燥作業を行うこ
とができる。Therefore, although it is an inexpensive pressure-feed type circulating grain dryer, drying work can be performed in a clean environment similar to that of a fully-enclosed suction type dryer.

【図面の簡単な説明】 第１図は本考案による圧送型循環穀物乾燥機の塵埃除去
装置の一実施例を一部切欠いて示す側面図、第２図は同
側断面図である。 １・・・・・・乾燥機筐体、２・・・・・・穀物貯留室
３・・・・・・乾燥室、４・・・・・・集穀室、５・
・・・・・配穀装置、６・・・・・・排穀装置、７・・
・・・・揚穀機、８，１２，１４・・・・・・多孔板、
９・・・・・・熱風導入風路、１０・・・・・・圧送フ
ァン、１１・・・・・・熱風発生機、１３・・・・・・
穀物流下通路、１５・・・・・・塵埃落下通路、１６・
・・・・・繰出ロール、１７，１９・・・・・・樋、１
８，２０・・・・・・スクリューコンベア、２１・・・
・・・穀物落下口、２２・・・・・・シャッタ、２３・
・・・・・吸塵機。BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a partially cutaway side view of an embodiment of a dust removal device for a pressure-fed circulating grain dryer according to the present invention, and FIG. 2 is a sectional view of the same side. 1...Dryer housing, 2...Grain storage room 3...Drying room, 4...Grain collection room, 5...
... Grain distribution device, 6 ... Grain threshing device, 7...
... Grain lifting machine, 8, 12, 14 ... Perforated plate,
9... Hot air introduction air path, 10... Pressure fan, 11... Hot air generator, 13...
Grain flow down passage, 15... Dust falling passage, 16.
...Feeding roll, 17, 19...Gutter, 1
8, 20...Screw conveyor, 21...
...Grain fall port, 22...Shutter, 23.
...Dust sucker.

Claims (2)

【実用新案登録請求の範囲】[Scope of utility model registration request] （１）乾燥機筐体の上から下に順次穀物貯留室、乾燥室
を配設し、該乾燥室に多孔板から成る熱風導入風路と穀
物流下通路を横に交互に配置し、該熱風導入風路に圧送
ファンを有する熱風発生機を設け、熱風を圧送して上記
穀物流下通路の穀物層中を通して上記乾燥機筐体外に排
出することで乾燥させ、上記穀物貯留室の上部に配穀装
置を設け、上記乾燥室の下方に排穀装置を設けて、これ
らの配穀装置と排穀装置間に揚穀機を連設して戒る圧送
型循環穀物乾燥機において、穀物が乾燥室から貯留室に
還元される循環系路中に吸塵機を設け、上記乾燥室の乾
燥機筐体側壁部の多孔板内側に所定の隙間を保持して他
の多孔板を２重に内張すして塵埃落下通路を形威し、該
通路の上端部を閉塞するとともに下端部を上記穀物流下
通路に連通させたことを特徴とする圧送型循環穀物乾燥
機の塵埃除去装置。(1) A grain storage chamber and a drying chamber are arranged sequentially from the top to the bottom of the dryer housing, and in the drying chamber, hot air introduction air passages and grain flow passages made of perforated plates are arranged horizontally alternately, and the hot air A hot air generator with a pressure fan is installed in the introduction air passage, and the hot air is forced through the grain layer of the grain flow passage and discharged outside the dryer casing to dry the grain, and the grain is distributed in the upper part of the grain storage room. In a pressure-fed circulating grain dryer, a grain threshing device is provided below the drying chamber, and a grain lifting machine is connected between the grain rationing device and the grain threshing device. A dust suction device is installed in the circulation system path that is returned to the storage chamber, and a predetermined gap is maintained inside the perforated plate on the side wall of the dryer casing in the drying chamber, and the perforated plate is double lined with another perforated plate. 1. A dust removal device for a pressure-feed type circulating grain dryer, characterized in that a dust falling passage is formed, the upper end of the passage is closed, and the lower end is communicated with the grain flow passage. （２）前記他の多孔板の下端を、乾燥機筐体側壁部の多
孔板の下端よりも下方に延設したことを特徴とする実用
新案登録請求の範囲第（１）項記載の圧送型循環穀物乾
燥機の塵埃除去装置。(2) A pressure-feeding type according to claim (1) of the utility model registration claim, characterized in that the lower end of the other perforated plate extends below the lower end of the perforated plate on the side wall of the dryer casing. Dust removal device for circulating grain dryer.