JP3828984B2

JP3828984B2 - Grain dryer radiant tube mounting device

Info

Publication number: JP3828984B2
Application number: JP11011297A
Authority: JP
Inventors: 興太郎久保田; 靖之日高; 友彦市川; ▲れい▼二小條; 正史弓立; 浩次奥村; 克司杉本; 惣一山本; 信彦大沼; 俊広武田
Original assignee: Iseki and Co Ltd; Satake Corp; National Agriculture and Food Research Organization; Yamamoto Manufacturing Co Ltd
Current assignee: Iseki and Co Ltd; Satake Corp; National Agriculture and Food Research Organization; Yamamoto Manufacturing Co Ltd
Priority date: 1997-04-14
Filing date: 1997-04-14
Publication date: 2006-10-04
Anticipated expiration: 2017-04-14
Also published as: JPH10288462A

Description

【０００１】
【発明の属する技術分野】
本発明は、遠赤外線を利用した穀物乾燥機の改良に関する。
【０００２】
【従来の技術】
外周を遠赤外線放射体で覆った放熱管にバーナの熱風を送り込むと、その熱で放熱管の外周から遠赤外線の輻射熱が四方に放射する。
循環式の穀物乾燥機内にこの放熱管を設置し、その遠赤外線を機内の穀物に放射することにより乾燥の効率と品質を向上させたものを、本出願人らは既に提案した（特願平７−２９７８３１号）。
このような穀物乾燥機において、放熱管は、乾燥機の集穀室か熱風室の内部にその正面から最奥部にわたって横向きに組込まれている。放熱管を長く形成して遠赤外線の放射面積を広くするためである。
ところがこの場合、バーナを取り外して乾燥機の正面を開放しても、放熱管の手前部分しか見えず大部分は乾燥機の奥深く収まって確認できないから、放熱管の保守点検が難しいという問題があった。
【０００３】
【発明が解決しようとする課題】
本発明は、このような問題を解決するため、放熱管の取付けを工夫することにより、その保守点検作業を簡易化することを目的とする。
【０００４】
【課題を解決するための手段】
上記目的を達成するため、本発明では、本体１の上部の調質室２の底部に、傾斜板３と流動規制山形４を設け、傾斜板３と流動規制山形４の間、あるいは流動規制山形４間に流穀部５をそれぞれ形成し、流穀部５の下方には穀物流下通路６を設け、穀物流下通路６の間に熱風室９を形成し、穀物流下通路６の外側にそれぞれ排風室１０を設けるものであって、
上記熱風室９の正面に放熱管１７を出し入れ可能な開口２２を設けると共に、熱風室９の背面に吸引ファン１１を取付け、
熱風室９の下部には固定架台２８を取付け、この固定架台２８に、放熱管取付台４６を介し放熱管１７を、開口２２に向かい前後方向に摺動自在に取付け、
放熱管１７は、二重管部１８とＵ字状に曲げて二重管部１８の上方に折返した部分とからなり、二重管部１８と連結しない側であるＵ字状に曲げた部分の終端を上方に立上げて熱風吹出し口２１とした。
【０００５】
【発明の実施の形態】
本発明の実施の形態を図面に示して説明する。
図１は本発明を実施した穀物乾燥機の断面図で、放熱管を集穀室内に設けた例である。図２はその側面図で底部を断面で示す。
本体１の上部の調質室２の底部に、左右一対の傾斜板３と３つの流動規制山形４を設けて、倒立ハの字形の流穀部５を４つ形成し、それぞれの下端開口に穀物流下通路６を接続する。
穀物流下通路６は、左右両側面を多数の小孔を穿孔した多孔板により形成して通気性を備える。そして穀物流下通路６の下端の落下口を機底の集穀室７に接続し、それぞれの落下口には繰出バルブ８を架設する。
４つの穀物流下通路６のそれぞれの左右外側の空間のうち一方を熱風室９とし、他方を排風室１０として、熱風室９を２つ排風室１０を３つ形成する。そして２つの熱風室９の一端を機体正面の熱風風胴９ａにより接続し、また３つの排風室１０の一端を機体背面の排風風胴１０ａにより接続する。
熱風は、熱風風胴９ａより２つの熱風室９に入り、ここより穀物流下通路６を横断し、排風となって排風室１０に出る。各排風室１０の排風は排風風胴１０ａに合流し、機体背面の吸引ファン１１（図２参照）により機外に排出される。
集穀室７を構成する樋状の集穀板１２の谷底部には、前後方向に伸びる集穀ラセン１３を設け、その送出端を上昇エレベータ１４の下部入口に接続する。上昇エレベータ１４の上部排出口には調質室２の給穀ラセン１５の始端を接続し、ラセン１５の送出端に拡散板１６を設ける。
そして繰出バルブ８を回転して調質室２の穀物を穀物流下通路６より集穀室７に落とし、集穀室７から集穀ラセン１３、上昇エレベータ１４、および給穀ラセン１５を経て再び調質室２に戻す穀物循環経路を形成する。
【０００６】
図３は放熱管の拡大平面図、図４は集穀室の一部を切欠して示す拡大側面図、図５は図４のＡ−Ａ矢視断面図、図６は集穀室の要部拡大側面図である。
放熱管１７は、図３に示すように、全長の中ほどにおいてヘアピン状に屈曲した形状で、その始端から所定の範囲を外管により覆って二重管構造とする。この二重管部１８の外周に遠赤外線塗料（例えばオキツモ株式会社製Ｂ−６００）を塗装して、遠赤外線放射体を形成する。
放熱管１７の始端は正面板１９を貫通して乾燥機正面のバーナ２０に連結する。放熱管１７の終端部は正面板１９を貫通して上向きに立上げ、その終端の熱風吹出し口２１を熱風風胴９ａ内に開口する（図２）。
集穀室７の正面には、放熱管１７を出し入れする開口２２を設ける（図４）。開口２２の周縁には複数の正面板固定孔２３を設け、その内側にナットを熔接する。さらに集穀室７の背面には、図６に示すように、その所定位置に複数の取付枠固定孔２４を設ける。正面板１９の周縁に、正面板固定孔２３に合わせて取付孔３２を設ける（図３）。
２５は穀物流下通路６の落下口を形成する案内板である。２６は流穀板で、落下口の下方に庇状に設ける。２７は屋根形の反射板である。
【０００７】
そして集穀室７の上部中央に固定架台２８を設置し、その下面に、左右平行な断面Ｌ字状のガイドレール２９を機体の前後方向に取り付ける。
放熱管取付枠３０の上面には、左右一対の逆Ｌ字状の引掛アングル３１を前後方向に長く形成する。
３５、３５ａはＵ字形の取付金具で、これにより放熱管１７を放熱管取付枠３０に吊り下げ、この状態で放熱管取付枠３０の引掛アングル３１をガイドレール２９に引掛けて滑らせ、放熱管１７を放熱管取付枠３０と共に開口２２より集穀室７の内部に挿入する。放熱管取付枠３０の後端が集穀室７の背面に接触したら、放熱管取付枠３０の後端の折曲げ部３３を集穀室７の背面に固定し、同時に正面板１９により開口２２を塞ぐ。３６は取付ボルトである（図４、図６）。
【０００８】
修理や保守の際には、熱風風洞９ａより放熱管１７の熱風吹出し口２１を抜いて取り外し、さらに取付ボルト３６を緩めて正面板１９を外して開口２２を開放する。
そして放熱管取付枠３０の折曲げ部３３と集穀室７の背面の連結を解いて、放熱管取付枠３０をバーナ２０と一緒に乾燥機の手前に引出し、引掛アングル３１をＬ型ガイドレール２９に沿って滑らせながら放熱管１７を機外に取り出す。
【０００９】
図７および図８は、図１と同様に放熱管を集穀室内に設けた実施例で、前述の構成と異なる部分を重点に説明する。
図７は集穀室の一部を切欠して示す拡大側面図、図８は図７のＢ−Ｂ矢視断面図である。
流穀板２６の下方に、固定架台２８を前後方向に取付け、固定架台２８の下方に支持枠３４を複数の吊下げ具３８により水平に吊下げる。支持枠３４の前部は本体１の開口２２にのぞませる。
支持枠３４の上面には、左右平行に断面山型のガイドレール３７を機体の前後方向に取付ける。山型ガイドレール３７上には、放熱管取付枠３０を前後方向に摺動自在に載置する。
放熱管取付枠３０の前部には正面板１９を一体に取付ける。
そして放熱管取付枠３０の上面に放熱管１７を載せ取付金具３５、３５ａにより固定する。放熱管１７の始端は正面板１９を貫通して乾燥機正面のバーナ２０に連結する。そして放熱管取付枠３０をガイドレール３７に沿って滑らせながら放熱管１７を開口２２より集穀室７の内部に挿入する。
定位置まで挿入したら正面板１９を係止して開口２２を塞ぎ、放熱管１７の終端の熱風吹出し口２１を熱風風胴９ａに接続する。
修理やメンテナンスの際には、熱風風洞９ａより放熱管１７の熱風吹出し口２１を抜き、正面板１９を外して開口２２を開放し、放熱管取付枠３０をバーナ２０と一緒に手前に引出し、ガイドレール３７の上を滑らせながら放熱管１７を機外に取り出す。
【００１０】
図９、図１０および図１１は放熱管を熱風室内に配置した実施態様で、図９はその正面図、図１０はその側面図、図１１はその要部拡大正面図である。
本体１の上部の調質室２の底部に、左右一対の傾斜板３と流動規制山形４を設けて倒立ハの字形の流穀部５、５を形成し、それぞれの下端開口に穀物流下通路６を接続する。傾斜板３および流動規制山形４は、多数の小孔を穿孔した多孔板により形成する。
２本の穀物流下通路６の下部を機体底部で合流し、その合流部に繰出バルブ８を架設する。繰出バルブ８の下方には断面Ｖ字状の集穀板１２を形成し、その谷底部に前後方向に伸びる集穀ラセン１３を設ける。集穀ラセン１３の終端を上昇エレベータ１４の下部入口に接続し、上昇エレベータ１４の上部排出口を調質室２の給穀ラセン（図示せず）に接続する。
２本の穀物流下通路６の内側を熱風室９とし、外側を排風室１０とする。
【００１１】
３９は穀物流下通路６の多孔の外壁を支持する支持材で、熱風室９にのぞむ左右の支持材３９の間に固定架台２８を差し渡す。
固定架台２８の上面に、左右平行に断面Ｌ字状のガイドレール２９を機体の前後方向に取り付ける。固定架台２８の前部に左右一対のロックナット４２を熔接する。
４０はベース４０で、その前縁と左右の側縁を下方に折曲げてその前部のベース固定孔４３を形成する。
ベース４０の上面の前後２か所に放熱管支持板４１を設け、放熱管支持板４１には、上部に半円状の切欠き４４と、その下方に放熱管挿通孔４５を形成する。放熱管は大径の放熱管４９と小径の放熱管５０を連結して形成し、その外周に遠赤外線塗料（例えばオキツモ株式会社製Ｂ−６００）を塗装して、遠赤外線放射体を形成する。そして放熱管５０のヘアピン状に折返した終端を、後方から２枚の放熱管挿通孔４５に挿通し、同時に半円状の切欠き４４により放熱管４９を支えて、ベース４０に一体に固定する。
【００１２】
ベース４０に放熱管４９、５０を固定して、ベース４０の側縁をガイドレール２９の上に沿って滑らせながら、放熱管４９、５０を正面の開口２２から機内に挿入する。ベース４０の前縁が固定架台２８に当ったら、ベース固定孔４３に取付ボルト３６を通しロックナット４２に固定する。放熱管４９の始端は乾燥機正面のバーナ２０に連結する。放熱管４９の終端は熱風室９内に開放する。
この状態で、バーナ２０に点火し熱風を放熱管４９、５０に送り、放熱管４９、５０を加熱して遠赤外線を放出し、穀物流下通路６を流下する穀物に照射する。バーナ２０の熱風は放熱管５０の出口より熱風室９に出て、ここより穀物流下通路６を横断し、さらに排風室１０より排風風胴１０ａに合流し吸引ファン１１により機外に放出される。
修理や保守の際には、バーナ固定台５１を外して、放熱管４９の始端からバーナ２０を外し、さらに取付ボルト３６をロックナット４２から外してベース４０を手前に引出しガイドレール２９の間を滑らせながら放熱管４９、５０を機外に取り出す。
【００１３】
図１２、図１３および図１４は放熱管を熱風室内に配置した他の実施態様で、図１２はその正面図、図１３は側面図、図１４は熱風室の拡大平面図である。
本体１の上部の調質室２の底部に、左右一対の傾斜板３と中央に流動規制山形４を設け、その間に倒立ハの字形の流穀部５をそれぞれ形成する。流穀部５にはそれぞれ断面菱形の補助流動規制山形４ｂを設け、流穀部５の下方には穀物流下通路６を設ける。傾斜板３、流動規制山形４および補助流動規制山形４ｂは、多数の小孔を穿孔した多孔板により形成する。
穀物流下通路６は、傾斜板３に平行に内側の側壁を多孔板により形成し、前後方向に張りわたした複数の支持桁（図示せず）により本体１の前面および背面の機壁に固定する。２本の穀物流下通路６はその下部を機体底部で合流し、その合流部に繰出バルブ８を架設する。２つの穀物流下通路６の間に挟まれる断面ほぼ菱形の部分に熱風室９を形成し、穀物流下通路６を挟んでその外側にそれぞれ排風室１０を設ける。排風室１０の排風は排風風胴１０ａに合流して、機体背面の吸引ファン１１（図１３参照）により機外に出る。
【００１４】
熱風室９の正面には、放熱管１７を出し入れする開口２２を設ける。
熱風室９の下部に、前後方向に固定架台２８を水平に取付ける。固定架台２８の前端を下方に折返して、その前面に複数の取付台固定孔４８を設け、取付台固定孔４８の内側にナットを熔接する。
放熱管取付台４６はその前端と左右両側を下方に折曲げて、固定架台２８を挟んでその上面を覆い、放熱管取付台４６の前面には、取付台固定孔４８に対向して複数の取付台孔４７を設ける。
【００１５】
放熱管１７は、遠赤外線放射体を形成した二重管部１８を下にして、その後半部をＵ字状に曲げて二重管部１８の上方に折返し、その終端を上方に立上げて熱風吹出し口２１を形成する。この状態で放熱管取付台４６に固定し、放熱管１７の始端にはバーナ２０を連結する。
本体１の開口２２から、放熱管１７を保持した放熱管取付台４６を挿入し、放熱管取付台４６を固定架台２８上に摺動自在に載置し、放熱管取付台４６を取付ボルト３６により取付台孔４７を通して固定架台２８に固定し、放熱管１７を熱風室９内の所定位置に取付ける。
【００１６】
図１４に示すように、バーナ２０の熱風を放熱管１７に送り、二重管部１８を加熱して遠赤外線を放射し、穀物流下通路６を流下する穀物に照射する。また放熱管１７の熱風吹出し口２１より熱風を熱風室９内に上向きに吹き出し、多孔板を通して穀物流下通路６を横断して穀物を乾燥した後、排風室１０に出て、さらに排風風洞１０ａに合流して吸引ファン１１により機外に放出する。
この時、熱風吹出し口２１から出る熱風は上向きで、しかも吸引ファン１１により吸引されるため、開口２２を塞がなくとも開口２２からは吹き出ない。
【００１７】
修理や保守の際には、本体１の前面を開き、放熱管１７の始端からバーナ２０を外し、取付ボルト３６を外して、放熱管１７を搭載した放熱管取付枠３０を固定架台２８から外し、固定架台２８上を滑らせて手前に引出すことにより、放熱管１７を機外に取り出す。
【００１８】
【発明の効果】
これを要するに本発明は、遠赤外線放射体で覆った放熱管を固定架台に移動可能に支持するので、放熱管の修理やメンテナンスに極めて都合がよい。また、熱風吹出し口２１から出る熱風は上向きで、しかも吸引ファン１１により吸引されるため、開口２２を塞がなくとも開口２２から吹き出ない。
【図面の簡単な説明】
【図１】本発明を実施した穀物乾燥機の断面図である。
【図２】図１の側面図で底部を断面で示す。
【図３】図１の放熱管の拡大平面図である。
【図４】図１の集穀室の一部を切欠して示す拡大側面図である。
【図５】図４のＡ−Ａ矢視断面図である。
【図６】図１の集穀室の要部拡大側面図である。
【図７】本発明を実施した他の穀物乾燥機の集穀室の側面図で一部を切欠して示す。
【図８】図７のＢ−Ｂ矢視断面図である。
【図９】本発明を実施したさらに他の穀物乾燥機の断面図である。
【図１０】図９の乾燥機の側面図で熱風室を断面で示す。
【図１１】図９の放熱管の分解拡大正面図である。
【図１２】本発明を実施した別の穀物乾燥機の断面図である。
【図１３】図１２の側面図である。
【図１４】図１２の熱風室の拡大平面図である。
【符号の説明】
１本体
２調質室
３傾斜板
４流動規制山形
５流穀部
６穀物流下通路
７集穀室
８繰出バルブ
９熱風室
９ａ熱風風洞
１０排風室
１０ａ排風風洞
１１吸引ファン
１２集穀板
１３集穀ラセン
１４上昇エレベータ
１５給穀ラセン
１６拡散板
１７放熱管
１８二重管部
１９正面板
２０バーナ
２１熱風吹出し口
２２開口
２３正面板固定孔
２４取付枠固定孔
２５案内板
２６流穀板
２７反射板
２８固定架台
２９ガイドレール
３０放熱管取付枠
３１引掛けアングル
３２取付孔
３３折曲げ部
３４支持枠
３５取付金具
３６取付ボルト
３７ガイドレール
３８吊下げ具
３９支持材
４０ベース
４１放熱管支持板
４２ロックナット
４３ベース固定孔
４４半円状の切欠き
４５放熱管挿通孔
４６放熱管取付台
４７取付台孔
４８取付台固定孔
４９放熱管
５０放熱管
５１バーナ固定台[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an improvement of a grain dryer using far infrared rays.
[0002]
[Prior art]
When hot air from the burner is sent into a heat radiating tube whose outer periphery is covered with a far-infrared radiator, radiant heat from far infrared rays is radiated in all directions from the outer periphery of the heat radiating tube.
The applicants have already proposed that this radiator tube is installed in a circulation type grain dryer and the far-infrared rays are radiated to the grain in the machine to improve the drying efficiency and quality (Japanese Patent Application 7-297831).
In such a grain dryer, the heat radiating pipe is incorporated into the inside of the cereal collection room or hot air chamber of the dryer from the front side to the innermost side. This is because the radiation tube is formed long to widen the radiation area of far infrared rays.
However, in this case, even if the burner is removed and the front of the dryer is opened, only the front part of the radiator pipe can be seen, and most of it is deep inside the dryer and cannot be confirmed. It was.
[0003]
[Problems to be solved by the invention]
In order to solve such a problem, an object of the present invention is to simplify the maintenance and inspection work by devising the installation of a heat radiating tube.
[0004]
[Means for Solving the Problems]
In order to achieve the above object, in the present invention, an inclined plate 3 and a flow regulating chevron 4 are provided at the bottom of the tempering chamber 2 at the top of the main body 1, and between the inclined plate 3 and the flow regulating chevron 4 or a flow regulating chevron. 4 is formed between the cereal parts 5, a grain flow passage 6 is provided below the cereal part 5, a hot air chamber 9 is formed between the cereal flow paths 6, and exhausted outside the grain flow path 6. A wind chamber 10 is provided ,
An opening 22 through which the heat radiating tube 17 can be taken in and out is provided in front of the hot air chamber 9, and a suction fan 11 is attached to the back surface of the hot air chamber 9.
A fixed base 28 is attached to the lower part of the hot air chamber 9, and the heat radiating pipe 17 is attached to the fixed base 28 via a heat radiating pipe mounting base 46 so as to be slidable in the front-rear direction toward the opening 22.
The heat radiating pipe 17 is composed of a double pipe portion 18 and a portion bent in a U shape and folded up above the double pipe portion 18, and a portion bent in a U shape that is not connected to the double pipe portion 18. The end of was raised upward to form a hot air outlet 21 .
[0005]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a cross-sectional view of a grain dryer embodying the present invention, which is an example in which a heat radiating pipe is provided in a grain collection chamber. FIG. 2 is a side view showing the bottom in cross section.
A pair of left and right inclined plates 3 and three flow regulation chevron shapes 4 are provided at the bottom of the tempering chamber 2 at the top of the main body 1 to form four inverted grain-shaped cereal parts 5, and each bottom opening The grain flow passage 6 is connected.
The grain flow passage 6 is formed of a perforated plate having a large number of small holes on both the left and right sides, and has air permeability. Then, the drop port at the lower end of the grain flow passage 6 is connected to the cereal collection chamber 7 at the bottom of the machine, and a feeding valve 8 is installed at each drop port.
One of the left and right outer spaces of each of the four grain flow passages 6 is a hot air chamber 9, the other is an exhaust air chamber 10, and two hot air chambers 9 and three exhaust air chambers 10 are formed. Then, one end of the two hot air chambers 9 is connected by a hot air wind tunnel 9a on the front side of the machine body, and one end of the three wind exhaust chambers 10 is connected by an exhaust air wind tunnel 10a on the rear surface of the machine body.
Hot air enters the two hot air chambers 9 from the hot air wind tunnel 9a, crosses the grain flow passage 6 from here, and exits to the exhaust air chamber 10 as exhaust air. The exhaust air from each exhaust chamber 10 merges with the exhaust wind tunnel 10a, and is discharged outside the apparatus by a suction fan 11 (see FIG. 2) on the back of the machine body.
A grain collecting spiral 13 extending in the front-rear direction is provided at the bottom of the trough-shaped grain collecting plate 12 constituting the grain collecting chamber 7, and its delivery end is connected to the lower entrance of the lift elevator 14. The starting end of the grain feeding spiral 15 of the tempering chamber 2 is connected to the upper outlet of the lift elevator 14, and a diffusion plate 16 is provided at the delivery end of the spiral 15.
Then, the feeding valve 8 is rotated to drop the grain in the tempering chamber 2 from the grain flow passage 6 to the cereal collection chamber 7, and is adjusted again from the cereal collection chamber 7 through the cereal collection spiral 13, the lift elevator 14, and the cereal supply spiral 15. A grain circulation path to return to the quality room 2 is formed.
[0006]
FIG. 3 is an enlarged plan view of the heat radiating pipe, FIG. 4 is an enlarged side view showing a part of the cereal collection room, and FIG. 5 is a cross-sectional view taken along arrow AA in FIG. FIG.
As shown in FIG. 3, the heat radiating tube 17 is bent into a hairpin shape in the middle of the entire length, and a predetermined range from its starting end is covered with an outer tube to form a double tube structure. A far-infrared paint (for example, B-600 manufactured by Okitsumo Co., Ltd.) is applied to the outer periphery of the double pipe portion 18 to form a far-infrared radiator.
The starting end of the heat radiating pipe 17 passes through the front plate 19 and is connected to the burner 20 in front of the dryer. The end portion of the heat radiating tube 17 passes through the front plate 19 and rises upward, and the hot air outlet 21 at the end is opened in the hot air wind tunnel 9a (FIG. 2).
An opening 22 through which the heat radiating pipe 17 is taken in and out is provided in the front of the grain collection chamber 7 (FIG. 4). A plurality of front plate fixing holes 23 are provided at the periphery of the opening 22, and nuts are welded to the inside thereof. Further, as shown in FIG. 6, a plurality of mounting frame fixing holes 24 are provided at the predetermined positions on the back surface of the cereal collection chamber 7. A mounting hole 32 is provided on the periphery of the front plate 19 so as to match the front plate fixing hole 23 (FIG. 3).
Reference numeral 25 denotes a guide plate that forms a drop port of the grain flow passage 6. Reference numeral 26 denotes a drifting cereal plate, which is provided in a bowl shape below the dropping port. Reference numeral 27 denotes a roof-shaped reflector.
[0007]
And the fixed mount 28 is installed in the center of the upper part of the grain collection room 7, and the guide rail 29 of L-shaped cross section parallel to the left-right parallel is attached to the lower surface.
A pair of left and right inverted L-shaped hooking angles 31 are formed on the upper surface of the radiation pipe mounting frame 30 so as to be long in the front-rear direction.
35 and 35a are U-shaped mounting brackets, whereby the heat radiating tube 17 is suspended from the heat radiating tube mounting frame 30, and in this state, the hooking angle 31 of the heat radiating tube mounting frame 30 is hooked on the guide rail 29 and slid. The tube 17 is inserted into the grain collection chamber 7 through the opening 22 together with the heat radiating tube mounting frame 30. When the rear end of the heat radiating tube mounting frame 30 comes into contact with the rear surface of the cereal collection chamber 7, the bent portion 33 at the rear end of the heat radiating tube mounting frame 30 is fixed to the rear surface of the cereal collection chamber 7. Block. Reference numeral 36 denotes a mounting bolt (FIGS. 4 and 6).
[0008]
At the time of repair or maintenance, the hot air outlet 21 of the heat radiating pipe 17 is pulled out and removed from the hot air tunnel 9a, and the mounting bolt 36 is loosened to remove the front plate 19 and open the opening 22.
Then, the connection between the bent portion 33 of the heat radiating tube mounting frame 30 and the rear surface of the grain collection chamber 7 is released, the heat radiating tube mounting frame 30 is pulled out together with the burner 20 to the front of the dryer, and the hook angle 31 is set to the L-shaped guide rail. The heat radiating pipe 17 is taken out of the apparatus while sliding along the line 29.
[0009]
7 and 8 show an embodiment in which a heat radiating tube is provided in the cereal collection chamber in the same manner as in FIG.
FIG. 7 is an enlarged side view showing a part of the cereal collection room cut away, and FIG. 8 is a cross-sectional view taken along the line BB in FIG.
A fixed gantry 28 is attached in the front-rear direction below the cereal plate 26, and a support frame 34 is horizontally suspended below the fixed gantry 28 by a plurality of hanging tools 38. The front part of the support frame 34 is put into the opening 22 of the main body 1.
On the upper surface of the support frame 34, a guide rail 37 having a mountain-shaped cross section is attached in parallel in the left-right direction in the front-rear direction of the machine body. On the mountain-shaped guide rail 37, the radiation pipe mounting frame 30 is slidably mounted in the front-rear direction.
A front plate 19 is integrally attached to the front portion of the heat radiating tube attachment frame 30.
Then, the heat radiating tube 17 is placed on the upper surface of the heat radiating tube mounting frame 30 and fixed by mounting brackets 35 and 35a. The starting end of the heat radiating pipe 17 passes through the front plate 19 and is connected to the burner 20 in front of the dryer. Then, the heat radiating pipe 17 is inserted into the cerealing chamber 7 through the opening 22 while sliding the heat radiating pipe mounting frame 30 along the guide rail 37.
When inserted to a fixed position, the front plate 19 is locked to close the opening 22, and the hot air outlet 21 at the end of the heat radiating tube 17 is connected to the hot air wind tunnel 9a.
When repairing or performing maintenance, the hot air outlet 21 of the heat radiating pipe 17 is removed from the hot air wind tunnel 9a, the front plate 19 is removed, the opening 22 is opened, and the heat radiating pipe mounting frame 30 is pulled out together with the burner 20. The heat radiating tube 17 is taken out of the machine while sliding on the guide rail 37.
[0010]
9, FIG. 10 and FIG. 11 show an embodiment in which the heat radiating pipe is disposed in the hot air chamber. FIG. 9 is a front view thereof, FIG. 10 is a side view thereof, and FIG.
A pair of left and right inclined plates 3 and a flow regulating chevron 4 are provided at the bottom of the tempering chamber 2 at the top of the main body 1 to form inverted bowl-shaped cereal parts 5, 5, and a grain flow passage at each lower end opening 6 is connected. The inclined plate 3 and the flow restricting chevron 4 are formed by a perforated plate having a large number of small holes perforated.
The lower parts of the two grain flow passages 6 are joined at the bottom of the machine body, and a feeding valve 8 is installed at the joined part. A grain collecting plate 12 having a V-shaped cross section is formed below the feeding valve 8 and a grain collecting spiral 13 extending in the front-rear direction is provided at the bottom of the valley. The terminal end of the grain collecting helix 13 is connected to the lower entrance of the lift elevator 14, and the upper outlet of the lift elevator 14 is connected to the grain feeding helix (not shown) of the tempering chamber 2.
The inside of the two grain flow passages 6 is a hot air chamber 9 and the outside is a wind exhaust chamber 10.
[0011]
Reference numeral 39 denotes a support member that supports the porous outer wall of the grain flow passage 6, and the fixed base 28 is passed between the left and right support members 39 that are viewed in the hot air chamber 9.
A guide rail 29 having an L-shaped cross section is attached to the upper surface of the fixed base 28 in the left-right direction in the longitudinal direction of the machine body. A pair of left and right lock nuts 42 are welded to the front portion of the fixed base 28.
Reference numeral 40 denotes a base 40, which has its front edge and left and right side edges bent downward to form a base fixing hole 43 at its front.
A heat radiating tube support plate 41 is provided at two places on the front and back of the upper surface of the base 40. The heat radiating tube support plate 41 is formed with a semicircular cutout 44 in the upper portion and a heat radiating tube insertion hole 45 in the lower portion. The radiator tube is formed by connecting a large-diameter radiator tube 49 and a small-diameter radiator tube 50, and a far-infrared paint (for example, B-600 manufactured by Okitsumo Co., Ltd.) is coated on the outer periphery to form a far-infrared radiator. . Then, the end of the heat radiating tube 50 turned into a hairpin shape is inserted into the two heat radiating tube insertion holes 45 from the rear, and at the same time, the heat radiating tube 49 is supported by the semicircular cutout 44 and fixed to the base 40 integrally. .
[0012]
The heat radiating pipes 49 and 50 are fixed to the base 40, and the heat radiating pipes 49 and 50 are inserted into the machine from the front opening 22 while sliding the side edges of the base 40 along the guide rail 29. When the front edge of the base 40 hits the fixed base 28, the mounting bolt 36 is passed through the base fixing hole 43 and fixed to the lock nut 42. The starting end of the heat radiating tube 49 is connected to the burner 20 in front of the dryer. The end of the heat radiating tube 49 opens into the hot air chamber 9.
In this state, the burner 20 is ignited, hot air is sent to the heat radiating pipes 49, 50, the heat radiating pipes 49, 50 are heated to emit far-infrared rays, and the grains flowing down through the grain flow passage 6 are irradiated. The hot air of the burner 20 exits from the outlet of the heat radiating pipe 50 to the hot air chamber 9, crosses the grain flow passage 6 from here, further joins the exhaust air wind tunnel 10 a from the exhaust air chamber 10, and is released to the outside by the suction fan 11. Is done.
When repairing or performing maintenance, remove the burner fixing base 51, remove the burner 20 from the starting end of the heat radiating tube 49, remove the mounting bolt 36 from the lock nut 42, and pull the base 40 forward and between the guide rails 29. Take out the heat radiating tubes 49 and 50 while sliding them.
[0013]
12, 13 and 14 show another embodiment in which the heat radiating pipe is arranged in the hot air chamber. FIG. 12 is a front view thereof, FIG. 13 is a side view, and FIG. 14 is an enlarged plan view of the hot air chamber.
A pair of left and right inclined plates 3 and a flow regulating chevron 4 are provided in the center at the bottom of the tempering chamber 2 at the top of the main body 1, and an inverted U-shaped cereal portion 5 is formed therebetween. The drifting part 5 is provided with an auxiliary flow restriction mountain 4b having a rhombus cross section, and a grain flow passage 6 is provided below the drifting part 5. The inclined plate 3, the flow regulation chevron 4 and the auxiliary flow regulation chevron 4b are formed by a perforated plate having a large number of small holes.
The grain flow passage 6 is formed on the inner side wall by a perforated plate parallel to the inclined plate 3 and fixed to the front and rear machine walls of the main body 1 by a plurality of support beams (not shown) stretched in the front-rear direction. . The lower part of the two grain flow passages 6 merges at the bottom of the machine body, and a feeding valve 8 is installed at the merged part. A hot air chamber 9 is formed in a substantially diamond-shaped section sandwiched between the two grain flow passages 6, and an exhaust air chamber 10 is provided on the outer side of the grain flow passage 6. The exhausted air from the exhaust chamber 10 joins the exhaust wind tunnel 10a, and goes out of the machine by the suction fan 11 (see FIG. 13) on the back of the machine body.
[0014]
An opening 22 through which the heat radiating pipe 17 is taken in and out is provided in front of the hot air chamber 9.
A fixed mount 28 is horizontally attached to the lower part of the hot air chamber 9 in the front-rear direction. The front end of the fixed base 28 is folded downward, a plurality of mounting base fixing holes 48 are provided on the front surface, and a nut is welded inside the mounting base fixing hole 48.
The heat radiating pipe mounting base 46 is bent downward at its front end and both left and right sides to cover the upper surface with the fixed base 28 interposed therebetween. The front surface of the heat radiating pipe mounting base 46 has a plurality of faces facing the mounting base fixing holes 48. A mounting hole 47 is provided.
[0015]
The heat radiating tube 17 has a double tube portion 18 formed with a far-infrared radiator disposed on the bottom, bends the latter half thereof in a U-shape and folds the double tube portion 18 upward, and raises its end upward. A hot air outlet 21 is formed. In this state, it is fixed to the heat radiating tube mounting base 46, and the burner 20 is connected to the starting end of the heat radiating tube 17.
From the opening 22 of the main body 1, the heat radiating pipe mounting base 46 holding the heat radiating pipe 17 is inserted, the heat radiating pipe mounting base 46 is slidably mounted on the fixed base 28, and the heat radiating pipe mounting base 46 is attached to the mounting bolt 36. Then, the heat radiating tube 17 is fixed at a predetermined position in the hot air chamber 9 by being fixed to the fixed frame 28 through the mounting hole 47.
[0016]
As shown in FIG. 14, hot air from the burner 20 is sent to the heat radiating pipe 17, the double pipe portion 18 is heated to radiate far-infrared rays, and the grain flowing down through the grain flowing-down passage 6 is irradiated. Also, hot air is blown upward into the hot air chamber 9 from the hot air outlet 21 of the heat radiating pipe 17, and after passing through the perforated plate and passing through the grain flow passage 6, the grain is dried and then exited to the exhaust air chamber 10, and further the exhaust wind tunnel. 10a is combined and discharged to the outside by the suction fan 11.
At this time, the hot air coming out from the hot air outlet 21 is upward and is sucked by the suction fan 11, so that it does not blow out from the opening 22 even if the opening 22 is not blocked.
[0017]
When repairing or performing maintenance, the front surface of the main body 1 is opened, the burner 20 is removed from the starting end of the heat radiating tube 17, the mounting bolts 36 are removed, and the heat radiating tube mounting frame 30 on which the heat radiating tube 17 is mounted is removed from the fixed base 28. Then, the heat radiating pipe 17 is taken out of the machine by sliding on the fixed base 28 and pulling it forward.
[0018]
【The invention's effect】
In summary the present invention this is because movably supports covered with the far infrared radiator heat dissipation tube in the fixed frame, very convenient not good in repair and maintenance of the heat radiating pipe. Further, since the hot air coming out from the hot air outlet 21 is upward and is sucked by the suction fan 11, it does not blow out from the opening 22 even if the opening 22 is not blocked.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view of a grain dryer embodying the present invention.
FIG. 2 is a side view of FIG.
FIG. 3 is an enlarged plan view of the heat radiating tube of FIG. 1;
4 is an enlarged side view showing a part of the grain collection chamber of FIG.
5 is a cross-sectional view taken along arrow AA in FIG. 4;
6 is an enlarged side view of a main part of the cereal collection room of FIG. 1. FIG.
FIG. 7 is a side view of a grain collection chamber of another grain dryer embodying the present invention, partly cut away.
8 is a cross-sectional view taken along the line BB in FIG.
FIG. 9 is a sectional view of still another grain dryer embodying the present invention.
FIG. 10 is a side view of the dryer of FIG. 9, showing a hot air chamber in cross section.
11 is an exploded enlarged front view of the heat radiating tube of FIG. 9;
FIG. 12 is a cross-sectional view of another grain dryer embodying the present invention.
13 is a side view of FIG.
14 is an enlarged plan view of the hot air chamber of FIG. 12. FIG.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Main body 2 Refining chamber 3 Inclination board 4 Flow regulation mountain shape 5 Grain part 6 Grain flow passage 7 Grain flow path 8 Grain collection chamber 8 Hot air chamber 9a Hot air wind tunnel 10 Exhaust air chamber 10a Exhaust air channel 11 Suction fan 12 Grain collecting plate 13 Grain helix 14 Lift elevator 15 Grain helix 16 Diffusion plate 17 Diffusion plate 18 Double pipe 19 Front plate 20 Burner 21 Hot air outlet 22 Opening 23 Front plate fixing hole 24 Mounting frame fixing hole 25 Guide plate 26 Flowing grain plate 27 Reflector 28 Fixed frame 29 Guide rail 30 Radiation tube mounting frame 31 Hook angle 32 Mounting hole 33 Bending portion 34 Support frame 35 Mounting bracket 36 Mounting bolt 37 Guide rail 38 Suspension tool 39 Support material 40 Base 41 Radiation tube support plate 42 Lock nut 43 Base fixing hole 44 Semi-circular cutout 45 Radiation pipe insertion hole 46 Radiation pipe mounting base 47 Mounting base hole 48 Mounting base fixing hole 49 Heat dissipation 50 radiating pipe 51 burner fixing base

Claims

An inclined plate 3 and a flow restricting chevron 4 are provided at the bottom of the tempering chamber 2 at the top of the main body 1, and a cereal part 5 is formed between the inclined plate 3 and the flow restricting chevron 4 or between the flow restricting chevron 4. The grain flow path 6 is provided below the cereal flow part 5, the hot air chamber 9 is formed between the grain flow paths 6, and the exhaust air chamber 10 is provided outside the grain flow path 6 .
An opening 22 through which the heat radiating tube 17 can be taken in and out is provided in front of the hot air chamber 9, and a suction fan 11 is attached to the back of the hot air chamber 9,
A fixed base 28 is attached to the lower part of the hot air chamber 9, and the heat radiating pipe 17 is attached to the fixed base 28 via a heat radiating pipe mounting base 46 so as to be slidable in the front-rear direction toward the opening 22.
The heat radiating pipe 17 is composed of a double pipe portion 18 and a portion bent in a U shape and folded up above the double pipe portion 18, and a portion bent in a U shape that is not connected to the double pipe portion 18. A heat radiation pipe mounting device for a grain dryer, characterized in that a hot air blow-out port 21 is formed by raising the end of the heat sink upward .