JP2012217977A - Food waste processor - Google Patents

Food waste processor Download PDF

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JP2012217977A
JP2012217977A JP2011089759A JP2011089759A JP2012217977A JP 2012217977 A JP2012217977 A JP 2012217977A JP 2011089759 A JP2011089759 A JP 2011089759A JP 2011089759 A JP2011089759 A JP 2011089759A JP 2012217977 A JP2012217977 A JP 2012217977A
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food waste
tank
heating
stirring
treatment
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Keiji Sugano
啓治 菅野
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Kansai Electric Power Co Inc
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Abstract

PROBLEM TO BE SOLVED: To provide a food waste processor capable of sufficiently heating food wastes.SOLUTION: The food waste processor is a device which dries and processes food wastes and includes a processing tank 2 in which food wastes are casted, a depressurizing pump 3 that depressurizes the interior of the processing tank 2, a stirring means 4 that stirs the food wastes in the processing tank 2, a heating channel 21 formed along the inner wall surface of the processing tank 2, a heating wire 44 laid to extend along the center of the processing tank 2, and a compressor 5 whose suction side is connected to the interior of the processing tank 2 and delivery side is connected to the heating channel 21.

Description

本発明は、食品廃棄物処理装置に関するものである。   The present invention relates to a food waste treatment apparatus.

食品製造業や、外食産業、家庭内から排出される食品廃棄物を処理するための装置として、例えば、特許文献１に挙げられるような装置が提案されている。この処理装置は、攪拌槽内に食品廃棄物などを投入し、この攪拌槽内の食品廃棄物を攪拌させつつ攪拌槽内を加熱及び減圧して食品廃棄物を処理している。   As a device for processing food waste discharged from the food manufacturing industry, the restaurant industry, or the home, for example, a device as disclosed in Patent Document 1 has been proposed. In this processing apparatus, food waste or the like is charged into a stirring tank, and the food waste is processed by heating and decompressing the stirring tank while stirring the food waste in the stirring tank.

特開２００１−２５８５３０号公報JP 2001-258530 A

上述した食品廃棄物処理装置において、攪拌槽内の食品廃棄物を加熱する手段は、攪拌槽の外側面を覆うようにして設置されたガス赤外線バーナ（加熱炉）によって構成されているが、この加熱手段では内部の食品廃棄物の加熱が十分でないといった問題があった。そこで、本発明は、食品廃棄物を十分に加熱することのできる食品廃棄物処理装置を提供することを課題とする。   In the food waste processing apparatus described above, the means for heating the food waste in the stirring tank is constituted by a gas infrared burner (heating furnace) installed so as to cover the outer surface of the stirring tank. The heating means has a problem that the food waste inside is not sufficiently heated. Then, this invention makes it a subject to provide the food waste processing apparatus which can fully heat food waste.

本発明に係る食品廃棄物処理装置は、食品廃棄物を乾燥させて処理する装置であって、食品廃棄物が投入される処理槽と、前記処理槽内を減圧する減圧手段と、前記処理槽内の食品廃棄物を攪拌する攪拌手段と、前記処理槽の内壁面に沿って形成された加熱流路と、前記処理槽の中心部を延びるように設置された加熱手段と、前記処理槽内に吸入側が接続されるとともに前記加熱流路に吐出側が接続された圧縮機と、を備えている。   A food waste treatment apparatus according to the present invention is an apparatus for drying and treating food waste, a treatment tank into which food waste is charged, a decompression means for decompressing the inside of the treatment tank, and the treatment tank Stirring means for stirring the food waste inside, a heating channel formed along the inner wall surface of the processing tank, heating means installed so as to extend the center of the processing tank, and inside the processing tank And a compressor having a suction side connected to the heating channel and a discharge side connected to the heating flow path.

この食品廃棄物処理装置によれば、処理槽の中心部を延びるように設置された加熱手段によって、処理槽の中心部から食品廃棄物を加熱するとともに、この加熱により発生した蒸気が圧縮機によって圧縮されて高温・高圧の気体となり加熱流路へと送られることで、食品廃棄物を処理槽の内壁面側からも加熱するため、食品廃棄物を十分に加熱することができる。また、従来では、処理槽内で発生した蒸気は、冷却塔において凝縮させてから排水していた。しかし、本発明に係る食品廃棄物処理装置では、処理槽内で発生した蒸気は加熱流路へと送られ、加熱流路内にて食品廃棄物に対して放熱することで凝縮されて凝縮水となるために冷却塔の設置が不要となり、装置の小型化や低コスト化が可能となる。   According to this food waste treatment apparatus, the heating means installed so as to extend the central portion of the treatment tank heats the food waste from the central portion of the treatment tank, and the steam generated by this heating is generated by the compressor. Since the food waste is heated from the inner wall surface side of the treatment tank by being compressed and converted into a high-temperature and high-pressure gas and sent to the heating flow path, the food waste can be sufficiently heated. Conventionally, steam generated in the treatment tank is drained after being condensed in the cooling tower. However, in the food waste treatment apparatus according to the present invention, the steam generated in the treatment tank is sent to the heating channel, and is condensed by dissipating heat to the food waste in the heating channel. Therefore, it is not necessary to install a cooling tower, and the apparatus can be reduced in size and cost.

上記攪拌手段は、処理槽の中心部を延びる攪拌ロッドと、攪拌ロッドの外周に形成された攪拌羽根と、を有する構成とすることができる。この場合、上述した加熱手段は、攪拌ロッド及び攪拌羽根の少なくとも一方の周囲に巻かれた電熱線とすることができる。また、攪拌ロッドは、中空状に形成されており、圧縮機の吐出側に接続された構造とすることができる。また、攪拌羽根は、攪拌ロッドの内部と連通するよう中空状に形成することもできる。   The agitation means can be configured to have an agitation rod extending through the center of the treatment tank and an agitation blade formed on the outer periphery of the agitation rod. In this case, the heating means described above can be a heating wire wound around at least one of the stirring rod and the stirring blade. Moreover, the stirring rod is formed in a hollow shape and can be structured to be connected to the discharge side of the compressor. Further, the stirring blade can be formed in a hollow shape so as to communicate with the inside of the stirring rod.

また、上記処理槽は、内側槽と外側槽との２つの槽から構成されており、この内側槽と外側層との間隙を加熱流路とすることができる。   Moreover, the said processing tank is comprised from two tanks, an inner tank and an outer tank, and can use the clearance gap between this inner tank and an outer layer as a heating flow path.

また、処理槽の内壁面に沿って配管を設置し、この配管を上述した加熱流路とすることもできる。   Moreover, piping can be installed along the inner wall surface of a processing tank, and this piping can also be used as the heating flow path mentioned above.

本発明に係る食品廃棄物処理装置によれば、食品廃棄物を十分に加熱することができる。   According to the food waste disposal apparatus of the present invention, food waste can be sufficiently heated.

図１は本実施形態に係る食品廃棄物処理装置の概念図である。FIG. 1 is a conceptual diagram of a food waste treatment apparatus according to this embodiment.

以下、本発明に係る食品廃棄物処理装置の実施形態について図面を参照しつつ説明する。なお、図中の矢印は、蒸気や加熱媒体、凝縮水などの流れを示している。   Hereinafter, an embodiment of a food waste disposal apparatus according to the present invention will be described with reference to the drawings. In addition, the arrow in a figure has shown flows, such as a vapor | steam, a heating medium, and condensed water.

図１に示すように、本実施形態に係る食品廃棄物処理装置１は、食品廃棄物が投入される処理槽２と、処理槽２内を減圧する減圧ポンプ３と、処理槽２内に投入された食品廃棄物を攪拌する攪拌手段４と、蒸気を圧縮する圧縮機５と、を備えている。   As shown in FIG. 1, the food waste treatment apparatus 1 according to the present embodiment includes a treatment tank 2 into which food waste is introduced, a decompression pump 3 that depressurizes the inside of the treatment tank 2, and an introduction into the treatment tank 2. The agitation means 4 for agitating the food waste and the compressor 5 for compressing the steam are provided.

処理槽２は、水平方向に軸が延びる円筒状の内側槽２０ａと、その内側槽２０ａを覆うように設置された円筒状の外側槽２０ｂとの二重構造となっている。この内側槽２０ａと外側槽２０ｂとの間の間隙によって、加熱流路２１が形成されている。なお、内側槽２０ａはその内部において食品廃棄物の処理を行うためのものであり、外側槽２０ｂは内側槽２０ａとの間に加熱流路２１を形成するためのものである。内側槽２０ａ及び外側槽２０ｂの材質は、特に限定されるものではないがステンレスなどとすることができる。   The processing tank 2 has a double structure of a cylindrical inner tank 20a whose axis extends in the horizontal direction and a cylindrical outer tank 20b installed so as to cover the inner tank 20a. A heating channel 21 is formed by a gap between the inner tank 20a and the outer tank 20b. In addition, the inner tank 20a is for processing food waste in the inside, and the outer tank 20b is for forming the heating flow path 21 between the inner tank 20a. The material of the inner tank 20a and the outer tank 20b is not particularly limited, but may be stainless steel or the like.

処理槽２の上部には、食品廃棄物を内側槽２０ａ内に投入するための投入口２２が形成されており、この投入口２２は外側槽２０ｂを通り抜けて内側槽２０ａ内へと延びている。また、内側槽２０ａの側面下部には、処理後の食品廃棄物を内側槽２０ａから外部へ取り出すための取出口２３が設けられている。これら投入口２２及び取出口２３は、内側槽２ａ内を密閉できるよう開閉可能に構成されている。食品廃棄物を処理した後などには内側槽２０ａ内に液体が溜まっていることがあるが、この液体を排出するための排液機構が処理槽２に設けられていることが好ましい。この排液機構は、単に処理槽２に排液管を設けてこの排液管から排液するような構成としてもよいし、その他にも処理槽２を回転させて遠心力により処理槽２の外周面に形成された排液口から排液するような機構とすることもできる。処理槽２の容量は、特に限定されるものではないが、例えば、６００〜２０００Lとすることが好ましい。   In the upper part of the processing tank 2, an inlet 22 for feeding food waste into the inner tank 20a is formed. The inlet 22 passes through the outer tank 20b and extends into the inner tank 20a. . Further, an outlet 23 for taking out the processed food waste from the inner tank 20a to the outside is provided at the lower side of the inner tank 20a. The inlet 22 and the outlet 23 are configured to be openable and closable so that the inside of the inner tank 2a can be sealed. A liquid may be accumulated in the inner tank 20a after the food waste is processed, but it is preferable that the processing tank 2 is provided with a draining mechanism for discharging the liquid. This drainage mechanism may be configured such that a drainage pipe is simply provided in the treatment tank 2 and drained from the drainage pipe. In addition, the treatment tank 2 is rotated and the treatment tank 2 is rotated by centrifugal force. It can also be set as the mechanism which drains from the drainage port formed in the outer peripheral surface. Although the capacity | capacitance of the processing tank 2 is not specifically limited, For example, it is preferable to set it as 600-2000L.

処理槽２内には、処理槽２の中央部を軸方向に延びるように攪拌手段４が設置されている。この攪拌手段４は、攪拌ロッド４１と、その攪拌ロッド４１の外周面に形成された攪拌羽根４２とを備えており、処理槽２内に回転可能に設置されている。攪拌ロッド４１の左端部は内側槽２０ａに支持され、右端部は攪拌モータ４３に連結しており、攪拌モータ４３を作動させることで攪拌ロッド４１を中心に攪拌手段４が回転する。このように構成された攪拌手段４の攪拌ロッド４１及び攪拌羽根４２の外周には電熱線４４が巻き付けられている。なお、この電熱線４４が本発明の加熱手段に相当する。   In the processing tank 2, the stirring means 4 is installed so that the center part of the processing tank 2 may be extended in an axial direction. The stirring means 4 includes a stirring rod 41 and stirring blades 42 formed on the outer peripheral surface of the stirring rod 41, and is rotatably installed in the processing tank 2. The left end portion of the stirring rod 41 is supported by the inner tank 20a, and the right end portion is connected to the stirring motor 43, and the stirring means 4 rotates around the stirring rod 41 by operating the stirring motor 43. A heating wire 44 is wound around the outer periphery of the stirring rod 41 and the stirring blade 42 of the stirring means 4 configured as described above. The heating wire 44 corresponds to the heating means of the present invention.

処理槽２の外部には、圧縮機５が設置されている。この圧縮機５は、吸入側が配管などを介して内側槽２０ａの内部と接続されており、吐出側が配管などを介して加熱流路２１に接続されている。内側槽２０ａ内においては電熱線４４を発熱させることで食品廃棄物が加熱され蒸気が発生するが、圧縮機５は、この内側槽２０ａ内にて発生した蒸気を吸入側から吸入して約５０〜１４０℃程度となるように圧縮して高温・高圧の気体にし、これを配管などを介して加熱流路２１へと吐出する。   A compressor 5 is installed outside the processing tank 2. The compressor 5 has a suction side connected to the inside of the inner tank 20a via a pipe or the like, and a discharge side connected to the heating channel 21 via a pipe or the like. In the inner tank 20a, the food waste is heated and steam is generated by heating the heating wire 44, but the compressor 5 sucks the steam generated in the inner tank 20a from the suction side to about 50%. The gas is compressed to a temperature of about ~ 140 ° C. to form a high-temperature / high-pressure gas, which is discharged to the heating channel 21 via a pipe or the like.

また、ドレインタンク６が、配管などを介して処理槽２の加熱流路２１と接続されている。このドレインタンク６には、圧縮機５で圧縮されて加熱流路２１へと送られた蒸気が食品廃棄物に対して放熱することで凝縮されて生成された凝縮水が溜められる。なお、ドレインタンク６内に溜められた凝縮水は定期的に外部へと排水される。   Further, the drain tank 6 is connected to the heating flow path 21 of the processing tank 2 through a pipe or the like. The drain tank 6 stores condensed water produced by condensation of the steam, which is compressed by the compressor 5 and sent to the heating flow path 21, by releasing heat to the food waste. Note that the condensed water stored in the drain tank 6 is periodically drained to the outside.

次に、上述した食品廃棄物処理装置１による食品廃棄物の処理方法について説明する。   Next, the food waste processing method by the food waste processing apparatus 1 described above will be described.

まず、投入口２２から食品廃棄物を処理槽２の内側槽２０ａ内に投入し、投入口２２を閉めて内側槽２０ａ内を密閉する。そして、減圧ポンプ３を作動させて、内側槽２０ａ内を減圧する。このときの内側槽２０ａ内の気圧は、７〜３１ｋＰａ程度とすることが好ましい。   First, food waste is introduced into the inner tank 20a of the processing tank 2 from the inlet 22, and the inlet 22 is closed to seal the inner tank 20a. And the decompression pump 3 is operated and the inside tank 20a is decompressed. The atmospheric pressure in the inner tank 20a at this time is preferably about 7 to 31 kPa.

また、攪拌手段４に巻き付けられた電熱線４４に電流を流すことで電熱線４４を発熱させて内側槽２０ａ内に投入された食品廃棄物を内側から加熱する。この加熱により食品廃棄物中に含まれる水分が蒸発して蒸気が生成され、この蒸気が配管などを介して圧縮機５に送られる。そして、この蒸気が圧縮機５で圧縮されることで高温・高圧となり配管などを介して加熱流路２１内へと送られ、食品廃棄物を外側から加熱する。この加熱流路２１においては、高温・高圧の蒸気は食品廃棄物へ放熱することで凝縮して液体となり、この液体はドレインタンク６へと排出され、最終的には外部へと排水される。   In addition, the heating wire 44 is heated by flowing an electric current through the heating wire 44 wound around the stirring means 4 to heat the food waste put into the inner tank 20a from the inside. By this heating, water contained in the food waste evaporates to generate steam, and this steam is sent to the compressor 5 through a pipe or the like. Then, the steam is compressed by the compressor 5 so that it becomes a high temperature and a high pressure, and is sent into the heating flow path 21 through a pipe or the like to heat the food waste from the outside. In the heating channel 21, the high-temperature and high-pressure steam is dissipated to the food waste to condense into a liquid, which is discharged to the drain tank 6 and finally drained to the outside.

以上のように、本実施形態に係る食品廃棄物処理装置は、電熱線４４により食品廃棄物を内側から加熱するとともに、加熱流路２１内を流れる蒸気によって食品廃棄物を外側からも加熱するため、食品廃棄物を十分に加熱することができる。また、処理槽２内で発生した蒸気は、加熱流路２１内で凝縮してドレインタンク６へと排出されるため、冷却塔などを設置する必要が無く、装置の小型化及び低コスト化が可能となる。またさらには、ボイラを使用することなく、食品廃棄物を加熱することができるため、エネルギー使用効率を向上させることができる。   As described above, the food waste treatment apparatus according to the present embodiment heats food waste from the inside by the heating wire 44 and also heats the food waste from the outside by the steam flowing in the heating channel 21. Food waste can be heated sufficiently. Further, since the steam generated in the treatment tank 2 is condensed in the heating channel 21 and discharged to the drain tank 6, there is no need to install a cooling tower or the like, and the apparatus can be reduced in size and cost. It becomes possible. Furthermore, since the food waste can be heated without using a boiler, energy use efficiency can be improved.

以上、本発明の実施形態について説明したが、本発明はこれらに限定されるものではなく、本発明の趣旨を逸脱しない限りにおいて種々の変更が可能である。   As mentioned above, although embodiment of this invention was described, this invention is not limited to these, A various change is possible unless it deviates from the meaning of this invention.

例えば、上記実施形態では、加熱流路２１を内側槽２０ａ及び外側槽２０ｂの間隙によって形成していたが、特にこれに限定されるものではなく、加熱流路を、処理槽２の内壁面に沿って螺旋状に設置した配管により形成し、この配管に圧縮機５の吐出側を接続するような構成とすることもできる。   For example, in the above embodiment, the heating channel 21 is formed by the gap between the inner tank 20a and the outer tank 20b. However, the present invention is not particularly limited to this, and the heating channel is formed on the inner wall surface of the processing tank 2. It can also be set as the structure which forms with the piping installed spirally along and connects the discharge side of the compressor 5 to this piping.

また、上記実施形態では、攪拌ロッド４１及び攪拌羽根４２の双方に電熱線４４が巻き付けられていたが、この電熱線４４は、攪拌ロッド４１及び攪拌羽根４２のどちらか一方のみに巻き付けていてもよい。   In the above embodiment, the heating wire 44 is wound around both the stirring rod 41 and the stirring blade 42. However, the heating wire 44 may be wound only on either the stirring rod 41 or the stirring blade 42. Good.

また、攪拌ロッド４１を中空状とし、加熱流路２１に送る高温・高圧の蒸気の一部を攪拌ロッド４１の内部に送るよう圧縮機５の吐出側からの流路を分岐して攪拌ロッド４１に接続する構成とすることもできる。これにより、電熱線４４だけでなく、攪拌ロッド４１内を流れる蒸気によっても、食品廃棄物の内側からの加熱を行うことができる。また、攪拌羽根４２も中空状にし、攪拌ロッド４１と攪拌羽根４２とを内部で流体が自由に流通できるように連通させて、攪拌羽根４２にも蒸気を送るように構成することもできる。   In addition, the stirring rod 41 is hollow, and the flow path from the discharge side of the compressor 5 is branched so that a part of the high-temperature and high-pressure steam sent to the heating flow path 21 is sent to the inside of the stirring rod 41. It can also be set as the structure connected to. Thereby, the heating from the inside of the food waste can be performed not only by the heating wire 44 but also by the steam flowing in the stirring rod 41. Alternatively, the stirring blade 42 may be hollow, and the stirring rod 41 and the stirring blade 42 may be communicated with each other so that fluid can freely flow therethrough so that steam is also sent to the stirring blade 42.

１ 食品廃棄物処理装置
２ 処理槽
２ａ 内側槽
２ｂ 外側槽
２１ 加熱流路
３ 減圧ポンプ（減圧手段）
４ 攪拌手段
４１ 攪拌ロッド
４２ 攪拌羽根
５ 圧縮機 DESCRIPTION OF SYMBOLS 1 Food waste processing apparatus 2 Processing tank 2a Inner tank 2b Outer tank 21 Heating flow path 3 Pressure reduction pump (pressure reduction means)
4 Stirring means 41 Stirring rod 42 Stirring blade 5 Compressor

Claims (7)

食品廃棄物を乾燥させて処理する装置であって、
食品廃棄物が投入される処理槽と、
前記処理槽内を減圧する減圧手段と、
前記処理槽内の食品廃棄物を攪拌する攪拌手段と、
前記処理槽の内壁面に沿って形成された加熱流路と、
前記処理槽の中心部を延びるように設置された加熱手段と、
前記処理槽内に吸入側が接続されるとともに前記加熱流路に吐出側が接続された圧縮機と、
を備えた、食品廃棄物処理装置。 An apparatus for drying and processing food waste,
A treatment tank into which food waste is introduced; and
Decompression means for decompressing the inside of the treatment tank;
Stirring means for stirring the food waste in the treatment tank;
A heating channel formed along the inner wall surface of the treatment tank;
Heating means installed so as to extend in the center of the treatment tank;
A compressor having a suction side connected to the treatment tank and a discharge side connected to the heating channel;
A food waste treatment apparatus comprising: 前記攪拌手段は、前記処理槽の中心部を延びる攪拌ロッドと、前記攪拌ロッドの外周に形成された攪拌羽根と、を有している、請求項１に記載の食品廃棄物処理装置。   The food waste processing apparatus according to claim 1, wherein the stirring means includes a stirring rod extending through a central portion of the processing tank and a stirring blade formed on an outer periphery of the stirring rod. 前記加熱手段は、前記攪拌ロッド及び攪拌羽根の少なくとも一方の周囲に巻かれた電熱線である、請求項２に記載の食品廃棄物処理装置。   The food waste treatment apparatus according to claim 2, wherein the heating means is a heating wire wound around at least one of the stirring rod and the stirring blade. 前記攪拌ロッドは、中空状に形成されており、前記圧縮機の吐出側に接続される、請求項２又は３に記載の食品廃棄物処理装置。   The food waste processing apparatus according to claim 2 or 3, wherein the stirring rod is formed in a hollow shape and is connected to a discharge side of the compressor. 前記攪拌羽根は、前記攪拌ロッドの内部と連通するよう中空状に形成されている、請求項４に記載の食品廃棄物処理装置。   The food waste processing apparatus according to claim 4, wherein the stirring blade is formed in a hollow shape so as to communicate with the inside of the stirring rod. 前記処理槽は、内側槽と外側槽との２つの槽から構成されており、
前記加熱流路は、前記内側槽と外側槽との間隙により形成される、請求項１から５のいずれかに記載の食品廃棄物処理装置。 The treatment tank is composed of two tanks, an inner tank and an outer tank,
The food waste processing apparatus according to any one of claims 1 to 5, wherein the heating channel is formed by a gap between the inner tank and the outer tank. 前記加熱流路は、前記処理槽の内壁面に沿って設置された配管によって形成される、請求項１から５のいずれかに記載の食品廃棄物処理装置。   The food waste treatment apparatus according to any one of claims 1 to 5, wherein the heating channel is formed by a pipe installed along an inner wall surface of the treatment tank.
JP2011089759A 2011-04-14 2011-04-14 Food waste processor Pending JP2012217977A (en)

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CN113776299A (en) * 2021-07-29 2021-12-10 黄山市农翔烘干设备有限公司 Hot air dryer capable of drying uniformly and drying method thereof

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