WO2001007850A1 - Microwave rotary drying machine - Google Patents

Microwave rotary drying machine Download PDF

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Publication number
WO2001007850A1
WO2001007850A1 PCT/JP2000/004810 JP0004810W WO0107850A1 WO 2001007850 A1 WO2001007850 A1 WO 2001007850A1 JP 0004810 W JP0004810 W JP 0004810W WO 0107850 A1 WO0107850 A1 WO 0107850A1
Authority
WO
WIPO (PCT)
Prior art keywords
duct
rotating drum
drum
microwave
mouth wave
Prior art date
Application number
PCT/JP2000/004810
Other languages
French (fr)
Japanese (ja)
Inventor
Keiichi Hori
Kazunori Teshima
Yuuji Asahara
Minoru Matsukawa
Original Assignee
Mitsubishi Heavy Industries, Ltd.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Mitsubishi Heavy Industries, Ltd. filed Critical Mitsubishi Heavy Industries, Ltd.
Priority to JP2001512236A priority Critical patent/JP3611318B2/en
Publication of WO2001007850A1 publication Critical patent/WO2001007850A1/en

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B3/00—Drying solid materials or objects by processes involving the application of heat
    • F26B3/32—Drying solid materials or objects by processes involving the application of heat by development of heat within the materials or objects to be dried, e.g. by fermentation or other microbiological action
    • F26B3/34—Drying solid materials or objects by processes involving the application of heat by development of heat within the materials or objects to be dried, e.g. by fermentation or other microbiological action by using electrical effects
    • F26B3/347—Electromagnetic heating, e.g. induction heating or heating using microwave energy
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B3/00—Drying solid materials or objects by processes involving the application of heat
    • F26B3/32—Drying solid materials or objects by processes involving the application of heat by development of heat within the materials or objects to be dried, e.g. by fermentation or other microbiological action
    • F26B3/34—Drying solid materials or objects by processes involving the application of heat by development of heat within the materials or objects to be dried, e.g. by fermentation or other microbiological action by using electrical effects
    • F26B3/343—Drying solid materials or objects by processes involving the application of heat by development of heat within the materials or objects to be dried, e.g. by fermentation or other microbiological action by using electrical effects in combination with convection
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B11/00—Machines or apparatus for drying solid materials or objects with movement which is non-progressive
    • F26B11/02—Machines or apparatus for drying solid materials or objects with movement which is non-progressive in moving drums or other mainly-closed receptacles
    • F26B11/04—Machines or apparatus for drying solid materials or objects with movement which is non-progressive in moving drums or other mainly-closed receptacles rotating about a horizontal or slightly-inclined axis
    • F26B11/0495—Machines or apparatus for drying solid materials or objects with movement which is non-progressive in moving drums or other mainly-closed receptacles rotating about a horizontal or slightly-inclined axis with provisions for drying by electro-magnetic means, e.g. radiation, microwaves

Definitions

  • the present invention relates to a microphone mouth wave rotary dryer capable of drying food processing residues to an optimum moisture content in order to convert high-quality food processing residues into dried food materials and livestock feed.
  • the food processing residue is put into a rotating drum, stirred and heated using hot air and microwaves, so that the residue is dried to an optimum moisture content.
  • the present invention is also applicable to the case where various foods are dried to produce dried foods (dry foods eaten by humans). Background art
  • Composting good-quality food processing residues generated in food processing factories, etc. has low added value (compost price is low).
  • adding food processing residues to dry food ingredients and feed instead of compost will add value.
  • a dried product obtained by drying the food processing residue can be used as a raw material for a dried food material or compound feed, resources can be effectively used, and this dried product can be used as an expensive commodity (dry food material, compound feed). It can be recycled as raw material). It can also contribute to the self-sufficiency ratio of livestock feed, which is mainly imported.
  • the present invention has been made in view of the above circumstances, and has as its object to provide a microphone mouth-wave rotary dryer that can dry food processing residues to an optimum moisture content in order to convert the food processing residues into a dried food material or feed for livestock. And Disclosure of the invention
  • a microwave dryer includes: a rotary drum device having a rotary drum; a hot air supply device that generates hot air and distributes the hot air through the rotary drum; It is composed of a microphone mouth wave supply device that supplies a microphone mouth wave.
  • the microwave rotary dryer of the present invention comprises: a rotary drum provided with a plurality of lifter blades parallel to an axial direction along a circumferential direction of an inner peripheral surface;
  • a rotating drum device consisting of a drum support and drive device that rotates along the direction;
  • a duct having a duct inlet portion communicating with one end surface of the rotating drum and a duct outlet portion communicating with the other end surface of the rotating drum, and a duct interposed in the duct and obtained by burning fuel.
  • a hot air generator that blows the burned combustion gas into the duct, and a hot air generator that is interposed in the duct.
  • a hot air supply device consisting of a circulating blower that blows air inside the duct from the duct inlet to the duct outlet,
  • a microwave supply device comprising: a microphone mouth wave oscillation device that generates a microphone mouth wave; and a waveguide that is inserted into the rotation drum from an end face of the rotation drum and guides the generated microwave to radiate into the rotation drum. It is composed of
  • the food processing residue is heated in a rotating drum, heated with hot air and microwaves, and uniformly dried in a short time to an optimum moisture content.
  • a dried product that can be effectively used as a dried food material or feed for livestock can be obtained.
  • the microwave rotary dryer of the present invention includes: a rotary drum provided with a plurality of lifter blades arranged in a state where the rotation axis is horizontal and parallel to the axial direction along a circumferential direction of the inner peripheral surface;
  • a rotating drum device consisting of a drum support and a driving device that rotates in the circumferential direction while supporting the rotating drum;
  • a duct having a duct inlet portion communicating with one end surface of the rotating drum and a duct outlet portion communicating with the other end surface of the rotating drum, and a duct interposed in the duct and obtained by burning fuel.
  • a hot air generator that blows the combustion gas into the duct, and a circulation fan that is interposed in the duct and blows air in the duct from the duct inlet toward the duct outlet.
  • a microwave supply device composed of waveguides arranged obliquely.
  • the food processing residue can be uniformly dried in a short time by heating it with hot air and microwaves while stirring it in a rotating drum to an optimum water content.
  • the dried product can be effectively used as a dried food material or livestock feed.
  • the rotating drum is arranged horizontally, the configuration is simplified. Furthermore, absorption efficiency is improved because the waveguides are arranged obliquely and the microphone mouth waves are emitted obliquely toward the lower space in the rotating drum. Further, the microphone mouth wave rotary dryer of the present invention is arranged such that the rotation axis is inclined with respect to the horizontal plane, and the lifter blade parallel to the axial direction is provided at a plurality of locations along the circumferential direction of the inner circumferential surface.
  • a rotating drum provided with a spiral spiral blade on an inner peripheral surface that is inclined and lower on the inner peripheral surface, and a drum supporting and rotating along the circumferential direction while supporting the rotating drum
  • a duct having a duct inlet portion communicating with one end surface of the rotating drum and a duct outlet portion communicating with the other end surface of the rotating drum; and a duct interposed in the duct.
  • a hot-air generator that blows combustion gas obtained by burning fuel into the duct, and directs air inside the duct from the duct inlet to the duct outlet, which is interposed in the duct. Circulating blower A hot air supply device,
  • the food processing residue can be uniformly dried in a short time by heating it with hot air and microwaves while stirring it in a rotating drum to an optimum water content.
  • the dried product can be effectively used as a dried food material or livestock feed.
  • microwaves can be emitted obliquely toward the lower space in the rotating drum, and the absorption efficiency is improved.
  • the microwave rotary dryer of the present invention a part of the gas is taken out from the duct of the hot air supply device, and the taken out gas is cooled by cooling water for cooling the microwave oscillation device.
  • a deodorizer with a condenser that condenses the vapor contained in the gas and discharges it as drain water to the outside, and discharges the gas from which the vapor has been removed to the outside.
  • the deodorizing device is provided with a deodorizing filter that allows gas discharged from the condenser to pass therethrough and then discharges the gas to the outside.
  • the present invention provides a food processing residue without generating an odor. Can be performed.
  • a grid panel for preventing microwave leakage is provided at the duct inlet and the duct outlet. For this reason, microphone mouth waves do not leak to the outside, and safety is high.
  • FIG. 1 is a front sectional view showing a microphone mouth wave rotary dryer according to a first embodiment of the present invention.
  • FIG. 2 is a cross-sectional view showing a II-II cross section of FIG.
  • FIG. 3 is a front sectional view showing a microphone mouth wave rotary dryer according to a second embodiment of the present invention.
  • the microwave rotary dryer 1 includes a rotary drum device 10, a hot air supply device 30, and a microphone mouth wave supply device 50 as main members. I have.
  • the food processing residue put into the rotary drum 11 of the rotary drum device 10 is separated by hot air from a hot air supply device 30 and microwaves from a microphone mouth wave supply device 50. It is heated and dried to the optimum moisture content.
  • the configuration of each part of the microwave rotary dryer 1 will be described sequentially.
  • the rotating drum 11 of the rotating drum device 10 is rotatably arranged with its rotation axis inclined with respect to a horizontal plane. More specifically, the outer peripheral surface of the rotating drum 11 Are mounted with ring members 12a and 12b called "tires". Rotation support rollers 13a and 13b are installed on the floor at different heights.Rotation support roller 13a rolls on ring member 12a and rotates. When the holding roller 13b is in rolling contact with the ring member 12b, the rotating drum 11 is tilted and rotatably supported.
  • the output shaft of the driving motor 14 is connected to the rotation support roller 13a. For this reason, when the drive motor 14 rotates forward and reverse, the rotational force is transmitted to the rotating drum 11 via the rotation supporting roller 13a, and the rotating drum 11 rotates forward in the circumferential direction. Reverse rotation.
  • a drum supporting device is constituted by the ring members 12a and 12b, the rotation supporting rollers 13a and 13b, and the driving motor 14.
  • the inner peripheral surface of the rotating drum 11 is provided with a lifter blade 15 and a spiral blade 16.
  • the lifter blades 15 extend in a direction parallel to the rotation axis of the rotary drum 11, and are provided at a plurality of locations along the circumferential direction of the inner peripheral surface of the rotary drum 11.
  • the spiral blade 16 is spirally provided on the inner peripheral surface of the rotating drum 11 that is inclined downward (the inner peripheral surface on the right side in FIG. 1).
  • a fixed chamber 17 communicates with the left end face of the rotating drum 11, and a fixed chamber 18 communicates with the right end face of the rotating drum 11.
  • a rotating bearing 19 is interposed between the fixed chamber 17 and the rotating drum 11, and a sealing material 20 is interposed between the fixed chamber 18 and the rotating drum 11.
  • an electromagnetic wave sealing member is disposed on the rotating bearing 19 and the sealing material 20.
  • the duct 31 of the hot-air supply device 30 has a duct outlet 31 a communicating with the fixed chamber 17 and a duct inlet 31 b communicating with the fixed chamber 18. That is, the duct outlet 31 a communicates with the left end face of the rotating drum 11 via the fixed chamber 17, and the duct inlet 31 b communicates with the right end of the rotating drum 11 via the fixed chamber 18. It communicates with the surface. As a result, a circulation ventilation path is formed along duct 31 ⁇ fixed chamber 17 ⁇ rotating drum 1 1—fixed chamber 18—duct 31.
  • the hot air generator 32 is interposed in the duct 31. The fuel gas G and the air are supplied to the burner 32 a of the hot air generator 32, and the fuel gas G is burned.
  • the high-temperature combustion gas generated by the combustion is blown into the duct 31.
  • the circulating blower 33 is interposed in the duct 31 and blows the air in the duct 31 from the duct inlet 31b to the duct outlet 31a. Therefore, the high-temperature combustion gas flows along the circulation ventilation path, and the high-temperature combustion gas flows in the rotating drum 11.
  • the microphone mouth wave oscillator 51 of the microphone mouth wave supply device 50 generates a microphone mouth wave.
  • the waveguide 52 is a tube member that guides the microphone mouth wave generated by the microphone mouth wave oscillator 51 into the rotating drum 11 and penetrates the fixed chamber 17 from the left end face of the rotating drum 11. It is inserted into the rotating drum 11.
  • the waveguide 52 is arranged so as to be inclined with respect to the horizontal plane, and the axial direction of the waveguide 52 and the rotation axis of the rotating drum 11 match.
  • the opening face of the distal end of the waveguide 52 is open obliquely downward. Therefore, the microwave guided by the waveguide 52 is radiated toward the lower space in the rotating drum 11. That is, the microwave radiated from the tip opening surface does not travel along the axial direction of the waveguide 52, but along the direction in which the tip opening surface faces (the direction toward the lower space in the rotating drum). It goes on. As a result, the microwave is efficiently incident on the food processing residue that is thrown into the space below the rotating drum 11 as a processed product. That is, since the microwave is obliquely incident on the surface of the food processing residue, the microwave is efficiently absorbed from the surface of the food processing residue.
  • the angle between the opening face of the waveguide 52 and the axial direction of the waveguide 52 is 10 to 80 degrees.
  • a Teflon cap 53 is attached to the open end of the waveguide 52. Since the Teflon cap 53 is formed of Teflon that can completely transmit microwaves, it does not interfere with the propagation of microwaves. The presence of the teflon cap 53 prevents water vapor and dust from entering the waveguide 52.
  • the waveguide 52 is provided with an isolator 54 and a power monitor 55.
  • the isolator 54 reflects the radiated microwave inside the rotating drum 11 Absorbs the reflected microwave power that returns through the inside of 52. Therefore, the microwave reflected power does not return to the microwave oscillator 51, and the microwave oscillator 51 is prevented from being damaged due to the return of the microwave reflected power.
  • the power monitor 55 measures and represents the value of the microwave incident power emitted from the microwave oscillator 51 and the value of the microwave reflected power returning through the waveguide 52.
  • An input hatch 60 serving as an input port for food processing residues is attached to the peripheral surface of the rotating drum 11 so as to be freely opened and closed.
  • a slide hatch 61 serving as an outlet for the dried material is attached to the right end face of the rotating drum 11, and can slide with respect to the fixed chamber 18.
  • the slide hatch 61 comes into close contact with the right end face of the rotating drum 11 and the outlet is closed by clamping the slide hatch 6 1 and the right end face of the rotating drum 11 with the clamp 62, and the clamp 62 is released Then, the slide hatch 61 slides and moves away from the right end face of the rotating drum 11 to open the outlet.
  • the exhaust pipe 71 of the deodorizing device 70 is connected to the duct 31 and takes out a part of gas (including steam and odor) from the duct 31.
  • a condenser 72 is interposed in the exhaust pipe 71. Cooling water that has cooled the microwave oscillator 51 and the isolator 54 flows through the condenser 72, and the vapor contained in the gas extracted from the duct 31 is condensed and drained. It becomes water W. The odor dissolves in the drain water W, so the odor can be removed.
  • a deodorizing filter 73 filled with activated carbon may be added to further remove the odor in the gas. Since the gas passing through the deodorizing filter 73 has its vapor removed by the condenser 72, the life of the activated carbon is prolonged.
  • the duct panels 80 and 81 are provided at the duct entrance 31b and the duct exit 31a. This has increased safety.
  • the rotating drum 11 By controlling the drive of the drive motor 14, the rotating drum 11 is rotated, When the charging hatch 60 is positioned on the upper peripheral surface, the rotation of the rotating drum 11 is stopped. In this state, the charging hatch 60 is opened, and high-quality food processing residues generated in a food processing factory or the like are collectively charged into the rotating drum 11. Then close the input hatch 60. At this time, slide hatch 61 is also closed. The water content of the input food processing residue is 80 to 60 wt%.
  • the rotary drum 11 By controlling the drive of the drive motor 14, the rotary drum 11 is rotated forward. At the same time, the hot air supply device 30 is operated to circulate hot air into the rotating drum 11. As the rotating drum 11 rotates, the food processing residue accumulated below the rotating drum 11 is lifted up along the circumferential direction by the lifter blade 15, and from the top when approaching the circumferential top. Fall down. For this reason, the food processing residue is heated while being efficiently contacted with hot air while being stirred in the rotating drum 11. In this way, the food processing residue is heated by hot air, so that the contained water evaporates and dries. Heating by hot air is performed by conducting heat from the surface of the food processing residue to the inside, so that the food processing residue dries in order from the surface side. In order to prevent carbonization of food processing residues, the temperature of hot air is kept at around 120 to 150 ° C.
  • microwave supply device 50 When a predetermined period of time has elapsed since the start of hot air heating, the microwave supply device 50 is operated while the heating by the hot air supply device 30 is continued, and microwaves are radiated into the rotating drum 11. . For this reason, food processing residues are also heated by microwaves (microwave induction heating).
  • the microwave Since the end opening surface of the waveguide 52 is opened obliquely downward, the microwave is radiated toward the space below the rotating drum 11, that is, the portion where the food processing residue is present. Since the lifter blade 15 made of metal is rotating in the circumferential direction, the electric field strength in the rotating drum 11 changes with the movement of the lifter blade 15. In other words, the microwave distribution of the microwave changes in intensity without becoming a standing wave in the rotating drum 11, so that the microwave (radio wave) is stirred inside the rotating drum 11. As a result, the emitted microwaves are efficiently and reliably absorbed by the food processing residue. In this way, the food processing residue in the rotating drum 11 can be dried by heating the microwave with good uniformity without unevenness.
  • the above-mentioned microwave heating is a so-called “internal heating” in which microwaves penetrating into the food processing residue (dielectric) are converted into heat by dielectric loss to heat from inside the food processing residue, so-called “internal heating”, and rapid heating is possible. In addition, it has the function of pushing out the moisture inside. Heating with hot air is what is called “external heating” in which food processing residues are heated from the surface side. Since food processing residues are heated by external heating using hot air and internal heating using microwaves, both the inside and the outside are heated uniformly, drying quickly and without drying unevenness.
  • the drying speed is slowed by hot air drying alone, and the drying time is prolonged.
  • the water is pushed out to the surface, and the drying speed is increased to shorten the drying time.
  • microwaves are selectively absorbed in a high-moisture environment and generate heat, uneven drying is less likely to occur and uniform drying can be promoted.
  • Food processing residues are heated and dried, turning into dried products.
  • the dried product is sterilized by temperature rise and microwave irradiation.
  • the dried product obtained by drying the food processing residue is crushed by the agitation by the lifter blade 15 to become fine and granular. Since the rotating drum 11 is inclined, the dried product is lifted up by the lifter blade 15 and then dropped. Gradually move to The dried matter that has moved to the right side of the rotating drum 11 and accumulated there is pushed up by the spiral blade 16 toward the left end side (the inclined upper part).
  • the heating by the hot air supply device 30 and the microwave supply device 50 is stopped, and the rotating drum is stopped. 1 Stop the rotation of 1.
  • the microwave rotary dryer 1 is suitable for commercialization as a large-sized dryer capable of batch processing (batch processing) a large amount of food processing residues.
  • Dispensing can be performed, and dry matter can be easily removed in a short time.
  • the volume of the dried product that has reached the target moisture content (for example, 1 O wt%) is about 1/5 of the volume of the original food processing residue (water content of 80 to 60 wt%), and is reduced. ing . Therefore, transportation and storage of the dried product can be easily performed. In addition, the microwaves are radiated while being heated, so the growth of microorganisms in the dried product is suppressed and the safety is high. Therefore, this dried product can be effectively used as a raw material of a dried food material or a compound feed.
  • microwave supply device 50 since the microwave supply device 50 is operated during drying, power consumption can be reduced. Energy saving can be achieved by optimally adjusting the temperature of the hot air generated from the hot air supply device 30, the timing of microwave heating input, and the drying time according to the input amount and moisture content of food processing residues. I try to do it.
  • the charging hatch 60 and the slide hatch 61 are opened, and the inside of the rotary drum 11 can be cleaned, so that the dryer can be used hygienically.
  • the microwave rotary dryer 101 according to the second embodiment the basic configuration of using both hot air drying and microwave drying is the same as that of the microwave rotary dryer according to the first embodiment shown in FIG. 1 and FIG. Same as the tumble dryer 1 but partially differs in the arrangement and configuration. For this reason, the description will focus on the parts that are different from the microwave rotary dryer 1 of the first embodiment, and the parts that perform the same function will be assigned the same reference numerals, and redundant description will be omitted.
  • the rotating drum device 10 The rotating drum 11 is rotatably supported by rotation supporting rollers 13a and 13b with its rotating shaft being horizontal. Further, only the lifter blade 15 is provided on the inner peripheral surface of the rotating drum 11, and no spiral blade is provided.
  • a rotating bearing 19 is interposed between the fixed chamber 17 and the rotating drum 11, and a rotating bearing 21 is similarly interposed between the fixed chamber 18 and the rotating drum 11.
  • the waveguide 52 of the wave supply device 50 is arranged so as to be inclined with respect to the horizontal plane, and the opening surface at the tip end of the waveguide 52 is perpendicular to the waveguide axis direction. . Therefore, the microwave guided from the microwave oscillator 51 and emitted from the opening face of the tip of the waveguide 52 travels along the waveguide axis direction. Therefore, the microwave is radiated toward the space below the rotating drum 11 and efficiently enters the food processing residue introduced into the rotating drum 11. In this case, while the rotating drum 11 is disposed horizontally, the waveguide 52 is disposed obliquely, so that the microwave is obliquely incident on the surface of the food processing residue and is efficiently absorbed. .
  • An input / output hatch 63 serving as an input port and an output port is mounted on the peripheral surface of the rotating drum 11 so as to be freely opened and closed.
  • the input and output hatch 63 is a member that is long along the axial direction of the rotating drum 11.
  • the input hatch 60 serving as an inlet and the slide hatch 61 serving as an outlet are provided.
  • one input hatch which also serves as an inlet and an outlet is provided.
  • the input / exit hatch 6 3 is a member that is long in the axial direction, so almost all of the dry matter is on the input / exit hatch 6 3 before opening, so the input / exit hatch 6 3 is opened. Just dry the weight It can be easily dropped and discharged to the outside.
  • the rotary drum 11 is horizontally arranged, and a single input / exit hatch 63 that doubles as an input port and an output port is provided. Since it is configured to be dropped and taken out, the mechanism of discharging and discharging can be simplified, and it is particularly suitable to be commercialized as a small-sized dryer that batch-processes (batch-processes) food processing residues.
  • the loading / unloading hatch 63 is opened, and the inside of the rotating drum 11 can be cleaned, so that the dryer can be used hygienically.
  • the configuration and operation of the other parts are the same as in the first embodiment.
  • the microwave rotary dryer according to the present invention is suitable for use in the industrial field of producing dried food materials, livestock feed, and dried food by drying food processing residues—various foods.

Abstract

A microwave rotary drying machine, wherein hot air is supplied from a hot air feeding device (30) into a rotary drum (11) and microwave is transmitted from a microwave transmitting device (50) after residual processed food has been charged into the rotary drum (11) and while being stirred, because the residual processed food in the rotary drum (11) is heated by hot air from the front surface side and simultaneously heated from the inside by microwave induction heating, the entire residual processed food is heated uniformly and dried uniformly in a short time so as to produce dried matter and, in addition, because the residual processed food can be dried without overheating, the dried matter is not carbonized, and dried up to an optimum moisture content, whereby the dried matter capable of being used as dry food material and livestock feed can be provided.

Description

明 細 書 マイクロ波回転乾燥機 技術分野  Description Microwave rotary dryer Technical field
本発明は、 品質の良好な食品加工残渣を乾燥食品素材や家畜用飼料にするため に食品加工残渣を最適含水率にまで乾燥させることができるマイク口波回転乾燥 機に関するものである。 かかる本発明では、 食品加工残渣を回転ドラム内に投入 して攪拌しつつ、 熱風とマイクロ波を用いて加熱することにより、 最適含水率に まで乾燥するように工夫したものである。  TECHNICAL FIELD The present invention relates to a microphone mouth wave rotary dryer capable of drying food processing residues to an optimum moisture content in order to convert high-quality food processing residues into dried food materials and livestock feed. In the present invention, the food processing residue is put into a rotating drum, stirred and heated using hot air and microwaves, so that the residue is dried to an optimum moisture content.
また本発明は、 種々の食品を乾燥して乾燥食品 （人間が食する乾燥食品） を製 造する場合にも適用可能である。 背景技術  The present invention is also applicable to the case where various foods are dried to produce dried foods (dry foods eaten by humans). Background art
近年では、 食品加工残渣の再資源化が環境対策上重要な課題となっており、 従 来の焼却 ·埋め立て処理に代わり、 食品加工残渣の再利用が可能なバイオ処理や 乾燥処理が注目されている。  In recent years, the recycling of food processing residues has become an important issue in environmental measures.Instead of conventional incineration and landfill treatment, bioprocessing and drying, which can reuse food processing residues, have attracted attention. I have.
また、 食品加工残渣を引き取る費用が高騰していると共に、 I S O 1 4 0 0 1 の取得に向けた絰営者意識の変化もあり、 食品加工工場， 外食産業， 給食センタ 一， さらには、 病院， 福祉施設等を対象とした、 業務用生ゴミ処理機の市場規模 は年々拡大している。  In addition, the cost of collecting food processing residues has risen, and there has been a change in business consciousness toward the acquisition of ISO 14001. Food processing factories, food service industries, catering centers, hospitals, The market size of commercial garbage disposers for welfare facilities is expanding year by year.
業務用生ゴミ処理機としては、 微生物を使用して生ゴミを分解するバイオ方式 や、 生ゴミを高温加熱して炭化させる炭化処理方式を採用して、 生ゴミを堆肥に するタイプのものが現在の主流である。  Commercial garbage disposers are of the bio-type, which decomposes garbage using microorganisms, and the carbonization method, in which garbage is heated and carbonized by heating at a high temperature to convert garbage into compost. The current mainstream.
一方、 食品加工工場や弁当 ·惣菜工場等では多量の食品加工残渣 （おから、 パ ンくず、 野菜， 米飯， 肉， 揚げ物， パスタ類等） が発生する。 またスーパ一マ一 ケッ トゃコンビニエンスストアにおいては、 賞味期限切れの食品は、 配送車によ り店舗から回収所に回収されてから廃棄されるため、 賞味期限切れ食品が食品加 ェ残渣 （生ゴミ） となる。 この様な食品加工工場や店舗では、 品質管理が徹底し ており食品加工残渣 （生ゴミ） も冷凍保管されており、 食品加工残渣といっても その品質は良好であり、 汚れたり腐敗しているわけではない。 On the other hand, large amounts of food processing residues (okara, bread crumbs, vegetables, cooked rice, meat, fried foods, pasta, etc.) are generated in food processing factories and bento and prepared food factories. In addition, at supermarkets and convenience stores, expired foods are collected from the store by a delivery vehicle and collected at a collection point, and then discarded. Becomes In such food processing plants and stores, thorough quality control Food processing residues (garbage) are also stored frozen. Food processing residues are of good quality and are not dirty or decomposed.
食品加工工場等で発生する品質の良好な食品加工残渣を堆肥にするのでは付加 価値が低い （堆肥としての価格が低い） 。 しかし、 食品加工残渣を堆肥ではなく 乾燥食品素材や飼料にすれば、 付加価値が高くなる。 即ち、 食品加工残渣を乾燥 させた乾燥物を、 乾 食品素材や配合飼料の原料とすることができれば、 資源の 有効活用ができると共に、 この乾燥物を高価な商品 （乾燥食品素材、 配合飼料の 原料） としてリサイクル使用することができるのである。 また、 輸入中心の家畜 飼料の自給率ァップにも寄与することができる。  Composting good-quality food processing residues generated in food processing factories, etc., has low added value (compost price is low). However, adding food processing residues to dry food ingredients and feed instead of compost will add value. In other words, if a dried product obtained by drying the food processing residue can be used as a raw material for a dried food material or compound feed, resources can be effectively used, and this dried product can be used as an expensive commodity (dry food material, compound feed). It can be recycled as raw material). It can also contribute to the self-sufficiency ratio of livestock feed, which is mainly imported.
ところで、 食品加工残渣を家畜用飼料にするためには、 食品加工残渣を過度に 乾燥して炭化させることなく最適な水分量まで均一に乾燥する必要があり、 また 、 衛生面での配慮 （殺菌効果が得られると共に装置を容易に洗浄できること等） が必要である。  By the way, in order to convert food processing residues into feed for livestock, it is necessary to dry the food processing residues uniformly to an optimal water content without excessive drying and carbonization. The effect must be obtained and the equipment can be easily cleaned.
本発明は、 上記現状に鑑み、 食品加工残渣を乾燥食品素材や家畜用飼料にする ために食品加工残渣を最適含水率にまで乾燥させることのできるマイク口波回転 乾燥機を提供することを目的とする。 発明の開示  The present invention has been made in view of the above circumstances, and has as its object to provide a microphone mouth-wave rotary dryer that can dry food processing residues to an optimum moisture content in order to convert the food processing residues into a dried food material or feed for livestock. And Disclosure of the invention
上記目的を達成するため、 本発明のマイクロ波乾燥機は、 回転ドラムを有する 回転ドラム装置と、 熱風を発生して前記回転ドラム内に熱風を流通させる熱風供 給装置と、 前記回転ドラム内にマイク口波を供給するマイク口波供給装置とで構 成されている。  In order to achieve the above object, a microwave dryer according to the present invention includes: a rotary drum device having a rotary drum; a hot air supply device that generates hot air and distributes the hot air through the rotary drum; It is composed of a microphone mouth wave supply device that supplies a microphone mouth wave.
より具体的には、 本発明のマイクロ波回転乾燥機は、 軸方向に平行なリフター ブレードが内周面の周方向に沿う複数箇所に備えられた回転ドラムと、 この回転 ドラムを支持しつつ周方向に沿い回転させるドラム支持 ·駆動装置とでなる回転 ドラム装置と、  More specifically, the microwave rotary dryer of the present invention comprises: a rotary drum provided with a plurality of lifter blades parallel to an axial direction along a circumferential direction of an inner peripheral surface; A rotating drum device consisting of a drum support and drive device that rotates along the direction;
ダク ト入口部が前記回転ドラムの一端面に連通しダク ト出口部が前記回転ドラ ムの他端面に連通しているダク 卜と、 このダク 卜に介装されており燃料を燃焼し て得た燃焼ガスを前記ダク ト内に吹き込む熱風発生器と、 前記ダク 卜に介装され ておりダク 卜内の空気をダク ト入口部からダク ト出口部に向けて送風する循環送 風機とでなる熱風供給装置と、 A duct having a duct inlet portion communicating with one end surface of the rotating drum and a duct outlet portion communicating with the other end surface of the rotating drum, and a duct interposed in the duct and obtained by burning fuel. A hot air generator that blows the burned combustion gas into the duct, and a hot air generator that is interposed in the duct. A hot air supply device consisting of a circulating blower that blows air inside the duct from the duct inlet to the duct outlet,
マイク口波を発生するマイク口波発振装置と、 前記回転ドラムの端面から回転 ドラム内に挿入されており発生したマイクロ波を導いて回転ドラム内に放射する 導波管とでなるマイクロ波供給装置とで構成されている。  A microwave supply device comprising: a microphone mouth wave oscillation device that generates a microphone mouth wave; and a waveguide that is inserted into the rotation drum from an end face of the rotation drum and guides the generated microwave to radiate into the rotation drum. It is composed of
力、かる構成となって'いるため、 本発明では、 食品加工残渣を回転ドラム内で攪 拌しつつ、 熱風とマイクロ波により加熱して、 最適含水率にまで短時間で均一に 乾燥することができ、 乾燥食品素材や家畜用飼料として有効利用することができ る乾燥物を得ることができる。  According to the present invention, the food processing residue is heated in a rotating drum, heated with hot air and microwaves, and uniformly dried in a short time to an optimum moisture content. Thus, a dried product that can be effectively used as a dried food material or feed for livestock can be obtained.
また本発明のマイクロ波回転乾燥機は、 回転軸が水平となる状態で配置される と共に軸方向に平行なリフターブレードが内周面の周方向に沿う複数箇所に備え られた回転ドラムと、 この回転ドラムを支持しつつ周方向に沿い回転させるドラ ム支持 ·駆動装置とでなる回転ドラム装置と、  Further, the microwave rotary dryer of the present invention includes: a rotary drum provided with a plurality of lifter blades arranged in a state where the rotation axis is horizontal and parallel to the axial direction along a circumferential direction of the inner peripheral surface; A rotating drum device consisting of a drum support and a driving device that rotates in the circumferential direction while supporting the rotating drum;
ダク ト入口部が前記回転ドラムの一端面に連通しダク ト出口部が前記回転ドラ ムの他端面に連通しているダク 卜と、 このダク 卜に介装されており燃料を燃焼し て得た燃焼ガスを前記ダク ト内に吹き込む熱風発生器と、 前記ダク 卜に介装され ておりダク ト内の空気をダク ト入口部からダク ト出口部に向けて送風する循環送 風機とでなる熱風供給装置と、  A duct having a duct inlet portion communicating with one end surface of the rotating drum and a duct outlet portion communicating with the other end surface of the rotating drum, and a duct interposed in the duct and obtained by burning fuel. A hot air generator that blows the combustion gas into the duct, and a circulation fan that is interposed in the duct and blows air in the duct from the duct inlet toward the duct outlet. A hot air supply device,
マイク口波を発生するマイク口波発振装置と、 前記回転ドラムの端面から回転 ドラム内に挿入されると共に発生したマイクロ波を導いて回転ドラム内の下方空 間に向けて斜めに放射するように斜め配置された導波管とでなるマイクロ波供給 装置とで構成されている。  A microphone mouth wave oscillator for generating a microphone mouth wave, and a microwave inserted into the rotating drum from an end face of the rotating drum and guiding the generated microwave to radiate obliquely toward a lower space in the rotating drum. And a microwave supply device composed of waveguides arranged obliquely.
かかる構成となっているため、 本発明では、 食品加工残渣を回転ドラム内で攪 拌しつつ、 熱風とマイクロ波により加熱して、 最適含水率にまで短時間で均一に 乾燥することができ、 乾燥食品素材や家畜用飼料として有効利用することができ る乾燥物とすることができる。  With such a configuration, according to the present invention, the food processing residue can be uniformly dried in a short time by heating it with hot air and microwaves while stirring it in a rotating drum to an optimum water content. The dried product can be effectively used as a dried food material or livestock feed.
また、 回転ドラムを水平配置としているため、 構成が簡単になる。 更に、 導波 管を斜め配置してマイク口波を回転ドラム内の下方空間に向けて斜めに放射する ようにしたため、 吸収効率が向上する。 また本発明のマイク口波回転乾燥機は、 回転軸が水平面に対して傾斜する状態 で配置されると共に軸方向に平行なリフタ一ブレードが内周面の周方向に沿う複 数箇所に備えられ且つ内周面のうち傾斜して下側となつた内周面部分には螺旋状 のスパイラルブレードが備えられた回転ドラムと、 この回転ドラムを支持しつつ 周方向に沿い回転させるドラム支持 ·駆動装置とでなる回転ドラム装置と、 ダク ト入口部が前記回転ドラムの一端面に連通しダク ト出口部が前記回転ドラ ムの他端面に連通しているダク トと、 このダク 卜に介装されており燃料を燃焼し て得た燃焼ガスを前記ダク 卜内に吹き込む熱風発生器と、 前記ダク 卜に介装され ておりダク ト内の空気をダク ト入口部からダク ト出口部に向けて送風する循環送 風機とでなる熱風供給装置と、 Also, since the rotating drum is arranged horizontally, the configuration is simplified. Furthermore, absorption efficiency is improved because the waveguides are arranged obliquely and the microphone mouth waves are emitted obliquely toward the lower space in the rotating drum. Further, the microphone mouth wave rotary dryer of the present invention is arranged such that the rotation axis is inclined with respect to the horizontal plane, and the lifter blade parallel to the axial direction is provided at a plurality of locations along the circumferential direction of the inner circumferential surface. In addition, a rotating drum provided with a spiral spiral blade on an inner peripheral surface that is inclined and lower on the inner peripheral surface, and a drum supporting and rotating along the circumferential direction while supporting the rotating drum A duct having a duct inlet portion communicating with one end surface of the rotating drum and a duct outlet portion communicating with the other end surface of the rotating drum; and a duct interposed in the duct. A hot-air generator that blows combustion gas obtained by burning fuel into the duct, and directs air inside the duct from the duct inlet to the duct outlet, which is interposed in the duct. Circulating blower A hot air supply device,
マイク口波を発生するマイク口波発振装置と、 前記回転ドラムの端面から回転 ドラム内に挿入されると共に発生したマイクロ波を導いて回転ドラム内の下方空 間に向けて斜めに放射するように先端開口が斜め下方に向かい開口している導波 管とでなるマイク口波供給装置とで構成されている。  A microphone mouth wave oscillator for generating a microphone mouth wave, and a microwave inserted into the rotating drum from an end face of the rotating drum and guiding the generated microwave to radiate obliquely toward a lower space in the rotating drum. It is composed of a microphone mouth wave supply device consisting of a waveguide whose tip opening opens diagonally downward.
かかる構成となっているため、 本発明では、 食品加工残渣を回転ドラム内で攪 拌しつつ、 熱風とマイクロ波により加熱して、 最適含水率にまで短時間で均一に 乾燥することができ、 乾燥食品素材や家畜用飼料として有効利用することができ る乾燥物とすることができる。  With such a configuration, according to the present invention, the food processing residue can be uniformly dried in a short time by heating it with hot air and microwaves while stirring it in a rotating drum to an optimum water content. The dried product can be effectively used as a dried food material or livestock feed.
また、 導波管の先端開口が斜め下方に向かい開口しているため、 マイクロ波を 回転ドラム内の下方空間に向けて斜めに放射することができ、 吸収効率が向上す る。  In addition, since the end opening of the waveguide is opened obliquely downward, microwaves can be emitted obliquely toward the lower space in the rotating drum, and the absorption efficiency is improved.
また本発明のマイクロ波回転乾燥機では、 熱風供給装置のダク ト内から一部の 気体を取り出し、 取り出した気体を、 前記マイクロ波発振装置を冷却するための 冷却水により冷却することにより、 前記気体中に含まれている蒸気を凝縮させて ドレン排水として外部に排出すると共に蒸気が除去された気体を外部に排出する 凝縮器を有する脱臭装置が備えられており、  Further, in the microwave rotary dryer of the present invention, a part of the gas is taken out from the duct of the hot air supply device, and the taken out gas is cooled by cooling water for cooling the microwave oscillation device. There is provided a deodorizer with a condenser that condenses the vapor contained in the gas and discharges it as drain water to the outside, and discharges the gas from which the vapor has been removed to the outside.
また必要に応じて、 前記脱臭装置には、 前記凝縮器から排出される気体を通過 させてから外部に排出する脱臭フィルタが備えられている構成とした。  Further, if necessary, the deodorizing device is provided with a deodorizing filter that allows gas discharged from the condenser to pass therethrough and then discharges the gas to the outside.
かかる構成としたため、 本発明では、 悪臭を発生することなく、 食品加工残渣 の処理を行うことができる。 With such a configuration, the present invention provides a food processing residue without generating an odor. Can be performed.
また本発明のマイクロ波回転乾燥機では、 前記ダク ト入口部及び前記ダク ト出 口部には、 マイクロ波漏洩防止のためのグリッ ドパネルが設けられている。 この ためマイク口波が外部に漏洩することがなく安全性が高い。  In the microwave rotary dryer according to the present invention, a grid panel for preventing microwave leakage is provided at the duct inlet and the duct outlet. For this reason, microphone mouth waves do not leak to the outside, and safety is high.
更に本発明は、 人間が食する通常の乾燥食品の製造に適用できることは言うま でもない。 図面の簡単な説明  Further, it goes without saying that the present invention can be applied to the production of ordinary dry foods for human consumption. BRIEF DESCRIPTION OF THE FIGURES
第 1図は、 本発明の第 1の実施例にかかるマイク口波回転乾燥機を示す正面断 面図である。  FIG. 1 is a front sectional view showing a microphone mouth wave rotary dryer according to a first embodiment of the present invention.
第 2図は、 第 1図の I I一 I I断面を示す断面図である。  FIG. 2 is a cross-sectional view showing a II-II cross section of FIG.
第 3図は、 本発明の第 2の実施例にかかるマイク口波回転乾燥機を示す正面断 面図である。 発明を実施するための最良の形態  FIG. 3 is a front sectional view showing a microphone mouth wave rotary dryer according to a second embodiment of the present invention. BEST MODE FOR CARRYING OUT THE INVENTION
以下に本発明の実施例にかかるマイク口波回転乾燥機を図面に基づき詳細に説 明する。  Hereinafter, a microphone mouth wave rotary dryer according to an embodiment of the present invention will be described in detail with reference to the drawings.
く第 1の実施例〉  First Example>
まず本発明の第 1の実施例にかかるマイク口波回転乾燥機 1を、 正面断面図で ある第 1図及び、 第 1図の Π— 1 1断面である第 2図を参照しつつ説明する。 第 1図及び第 2図に示すように、 このマイクロ波回転乾燥機 1は、 回転ドラム 装置 1 0と、 熱風供給装置 3 0と、 マイク口波供給装置 5 0を主要部材として構 成されている。 このマイクロ波回転乾燥機 1では、 回転ドラム装置 1 0の回転ド ラム 1 1内に投入した食品加工残渣を、 熱風供給装置 3 0による熱風と、 マイク 口波供給装置 5 0によるマイクロ波とにより加熱して、 最適含水率にまで乾燥さ せるようにしたものである。 かかるマイクロ波回転乾燥機 1の各部の構成を順次 説明する。  First, a microphone mouth wave rotary dryer 1 according to a first embodiment of the present invention will be described with reference to FIG. 1 which is a front sectional view, and FIG. . As shown in FIGS. 1 and 2, the microwave rotary dryer 1 includes a rotary drum device 10, a hot air supply device 30, and a microphone mouth wave supply device 50 as main members. I have. In the microwave rotary dryer 1, the food processing residue put into the rotary drum 11 of the rotary drum device 10 is separated by hot air from a hot air supply device 30 and microwaves from a microphone mouth wave supply device 50. It is heated and dried to the optimum moisture content. The configuration of each part of the microwave rotary dryer 1 will be described sequentially.
回転ドラム装置 1 0の回転ドラム 1 1は、 その回転軸が水平面に対して傾斜す る状態で回転自在に配置されている。 更に詳述すると、 回転ドラム 1 1の外周面 には 「タイヤ」 と称されるリング部材 1 2 a , 1 2 bが取り付けられている。 床 面上には、 高さ位置をずらして、 回転支持ローラ 1 3 aと回転支持ローラ 1 3 b が設置されており、 回転支持ローラ 1 3 aがリング部材 1 2 aに転接し、 回転支 持ローラ 1 3 bがリング部材 1 2 bに転接することにより、 回転ドラム 1 1を傾 斜状態にして回転自在に支持している。 The rotating drum 11 of the rotating drum device 10 is rotatably arranged with its rotation axis inclined with respect to a horizontal plane. More specifically, the outer peripheral surface of the rotating drum 11 Are mounted with ring members 12a and 12b called "tires". Rotation support rollers 13a and 13b are installed on the floor at different heights.Rotation support roller 13a rolls on ring member 12a and rotates. When the holding roller 13b is in rolling contact with the ring member 12b, the rotating drum 11 is tilted and rotatably supported.
駆動用電動機 1 4の出力軸は、 回転支持ローラ 1 3 aに連結されている。 この ため、 駆動用電動機 1 4が正転回転 ·逆転回転すると、 回転支持ローラ 1 3 aを 介して回転力が回転ドラム 1 1に伝達し、 回転ドラム 1 1が周方向に沿い正転回 転 ·逆転回転する。  The output shaft of the driving motor 14 is connected to the rotation support roller 13a. For this reason, when the drive motor 14 rotates forward and reverse, the rotational force is transmitted to the rotating drum 11 via the rotation supporting roller 13a, and the rotating drum 11 rotates forward in the circumferential direction. Reverse rotation.
なお、 リング部材 1 2 a， 1 2 bと回転支持ローラ 1 3 a， 1 3 bと駆動用電 動機 1 4により ドラム支持 '駆動装置が構成されている。  In addition, a drum supporting device is constituted by the ring members 12a and 12b, the rotation supporting rollers 13a and 13b, and the driving motor 14.
回転ドラム 1 1の内周面にはリフタ一ブレード 1 5とスパイラルブレード 1 6 力備えられている。 リフタ一ブレード 1 5は、 回転ドラム 1 1の回転軸と平行な 方向に伸びており、 回転ドラム 1 1の内周面の周方向に沿う複数箇所に備えられ ている。 スパイラルブレード 1 6は、 回転ドラム 1 1の内周面のうち傾斜して下 側となった内周面部分 （第 1図では右側の内周面部分） に螺旋状に備えられてい る。  The inner peripheral surface of the rotating drum 11 is provided with a lifter blade 15 and a spiral blade 16. The lifter blades 15 extend in a direction parallel to the rotation axis of the rotary drum 11, and are provided at a plurality of locations along the circumferential direction of the inner peripheral surface of the rotary drum 11. The spiral blade 16 is spirally provided on the inner peripheral surface of the rotating drum 11 that is inclined downward (the inner peripheral surface on the right side in FIG. 1).
回転ドラム 1 1の左端面には固定チャンバ 1 7が連通しており、 回転ドラム 1 1の右端面には固定チャンバ 1 8が連通している。 固定チャンバ 1 7と回転ドラ ム 1 1 との間には回転軸受 1 9が介装され、 固定チャンバ 1 8と回転ドラム 1 1 との間にはシール材 2 0が介装されている。 なお、 マイクロ波が外部に漏洩する ことを防ぐため、 回転軸受 1 9やシール材 2 0の部分には、 電磁波シール部材が 配置されている。  A fixed chamber 17 communicates with the left end face of the rotating drum 11, and a fixed chamber 18 communicates with the right end face of the rotating drum 11. A rotating bearing 19 is interposed between the fixed chamber 17 and the rotating drum 11, and a sealing material 20 is interposed between the fixed chamber 18 and the rotating drum 11. In addition, in order to prevent the microwave from leaking to the outside, an electromagnetic wave sealing member is disposed on the rotating bearing 19 and the sealing material 20.
熱風供給装置 3 0のダク ト 3 1は、 そのダク ト出口部 3 1 aが固定チャンバ 1 7に連通し、 そのダク ト入口部 3 1 bが固定チャンバ 1 8に連通している。 つま り、 ダク ト出口部 3 1 aが固定チャンバ 1 7を介して回転ドラム 1 1の左端面に 連通し、 ダク ト入口部 3 1 bが固定チャンバ 1 8を介して回転ドラム 1 1の右端 面に連通している。 この結果、 ダク ト 3 1→固定チャンバ 1 7→回転ドラム 1 1 —固定チャンバ 1 8—ダク ト 3 1に沿う、 循環送風経路が形成されている。 熱風発生器 3 2はダク ト 3 1に介装されている。 この熱風発生器 3 2のパーナ 3 2 aには、 燃料ガス Gが供給されると共に空気が供給されて、 燃料ガス Gが燃 焼する。 燃焼して発生した高温の燃焼ガスは、 ダク ト 3 1内に吹き込まれる。 循 環送風機 3 3はダク ト 3 1に介装されており、 ダク ト 3 1内の空気を、 ダク ト入 口部 3 1 bからダク ト出口部 3 1 aに向けて送風する。 このため高温の燃焼ガス が前記循環送風経路に沿い流通し、 回転ドラム 1 1内には高温の燃焼ガスが流通 する。 The duct 31 of the hot-air supply device 30 has a duct outlet 31 a communicating with the fixed chamber 17 and a duct inlet 31 b communicating with the fixed chamber 18. That is, the duct outlet 31 a communicates with the left end face of the rotating drum 11 via the fixed chamber 17, and the duct inlet 31 b communicates with the right end of the rotating drum 11 via the fixed chamber 18. It communicates with the surface. As a result, a circulation ventilation path is formed along duct 31 → fixed chamber 17 → rotating drum 1 1—fixed chamber 18—duct 31. The hot air generator 32 is interposed in the duct 31. The fuel gas G and the air are supplied to the burner 32 a of the hot air generator 32, and the fuel gas G is burned. The high-temperature combustion gas generated by the combustion is blown into the duct 31. The circulating blower 33 is interposed in the duct 31 and blows the air in the duct 31 from the duct inlet 31b to the duct outlet 31a. Therefore, the high-temperature combustion gas flows along the circulation ventilation path, and the high-temperature combustion gas flows in the rotating drum 11.
マイク口波供給装置 5 0のマイク口波発振器 5 1はマイク口波を発生する。 導 波路 5 2は、 マイク口波発振器 5 1にて発生したマイク口波を回転ドラム 1 1内 に導く管部材であり、 固定チャンバ 1 7を貫通して回転ドラム 1 1の左端面側か ら回転ドラム 1 1内に挿入されている。 この導波管 5 2は、 水平面に対して傾斜 する状態で配置されており、 導波管 5 2の軸方向と回転ドラム 1 1の回転軸方向 とが一致している。  The microphone mouth wave oscillator 51 of the microphone mouth wave supply device 50 generates a microphone mouth wave. The waveguide 52 is a tube member that guides the microphone mouth wave generated by the microphone mouth wave oscillator 51 into the rotating drum 11 and penetrates the fixed chamber 17 from the left end face of the rotating drum 11. It is inserted into the rotating drum 11. The waveguide 52 is arranged so as to be inclined with respect to the horizontal plane, and the axial direction of the waveguide 52 and the rotation axis of the rotating drum 11 match.
導波管 5 2の先端開口面は斜め下方に向かい開口している。 このため導波管 5 2により導かれたマイクロ波は、 回転ドラム 1 1内の下方空間に向かって放射さ れる。 つまり、 先端開口面から放射されたマイクロ波は、 導波管 5 2の軸方向に 沿って進行するのではなく、 先端開口面が臨む方向 （回転ドラム内の下方空間に 向かう方向） に沿って進行するのである。 この結果、 回転ドラム 1 1の下方空間 に処理物として投入される食品加工残渣に対して、 マイクロ波が効率的に入射す る。 即ち食品加工残渣の表面に対して斜めにマイクロ波が入射するため、 食品加 ェ残渣の表面からマイクロ波が効率的に吸収される。 なお、 導波管 5 2の先端開 口面と、 導波管 5 2の軸方向とでなす角度は、 1 0 ~ 8 0度としている。  The opening face of the distal end of the waveguide 52 is open obliquely downward. Therefore, the microwave guided by the waveguide 52 is radiated toward the lower space in the rotating drum 11. That is, the microwave radiated from the tip opening surface does not travel along the axial direction of the waveguide 52, but along the direction in which the tip opening surface faces (the direction toward the lower space in the rotating drum). It goes on. As a result, the microwave is efficiently incident on the food processing residue that is thrown into the space below the rotating drum 11 as a processed product. That is, since the microwave is obliquely incident on the surface of the food processing residue, the microwave is efficiently absorbed from the surface of the food processing residue. The angle between the opening face of the waveguide 52 and the axial direction of the waveguide 52 is 10 to 80 degrees.
また導波管 5 2の先端開口面には、 テフロンキャップ 5 3を取り付けている。 テフロンキャップ 5 3は、 マイクロ波が完全透過することができるテフロンによ り形成されているため、 マイクロ波の伝搬'放射の邪魔にならない。 このテフ口 ンキャップ 5 3があるため、 導波管 5 2内に水蒸気及びゴミ等が浸入することを 防止することができる。  In addition, a Teflon cap 53 is attached to the open end of the waveguide 52. Since the Teflon cap 53 is formed of Teflon that can completely transmit microwaves, it does not interfere with the propagation of microwaves. The presence of the teflon cap 53 prevents water vapor and dust from entering the waveguide 52.
導波管 5 2には、 アイソレー夕 5 4とパワーモニタ 5 5が備えられている。 ァ イソレ一タ 5 4は、 放射されたマイクロ波が回転ドラム 1 1内で反射して導波管 5 2内を通って戻ってくるマイクロ波反射電力を吸収する。 このため、 マイクロ 波反射電力がマイクロ波発振器 5 1に戻ってくることがなくなり、 マイクロ波反 射電力の戻りに起因してマイクロ波発振器 5 1が破損することが防止される。 ま た、 パワーモニタ 5 5は、 マイクロ波発振器 5 1から出射されるマイクロ波入射 電力の値と、 導波管 5 2内を通って戻ってくるマイクロ波反射電力の値を測定し 表 する。 The waveguide 52 is provided with an isolator 54 and a power monitor 55. The isolator 54 reflects the radiated microwave inside the rotating drum 11 Absorbs the reflected microwave power that returns through the inside of 52. Therefore, the microwave reflected power does not return to the microwave oscillator 51, and the microwave oscillator 51 is prevented from being damaged due to the return of the microwave reflected power. The power monitor 55 measures and represents the value of the microwave incident power emitted from the microwave oscillator 51 and the value of the microwave reflected power returning through the waveguide 52.
食品加工残渣の投入口となる投入用ハッチ 6 0は、 回転ドラム 1 1の周面に開 閉自在に取り付けられている。 一方、 乾燥物の取出口となるスライ ドハツチ 6 1 は、 回転ドラム 1 1の右端面に取り付けられており、 固定チャンバ 1 8に対して スライ ド移動可能となっている。 スライ ドハツチ 6 1が回転ドラム 1 1の右端面 に密着し、 クランプ 6 2によりスライ ドハツチ 6 1 と回転ドラム 1 1の右端面と をクランプすることにより取出口が閉状態となり、 クランプ 6 2を解除してスラ ィ ドハツチ 6 1がスライ ド移動し回転ドラム 1 1の右端面から離れることにより 取出口が開状態となる。  An input hatch 60 serving as an input port for food processing residues is attached to the peripheral surface of the rotating drum 11 so as to be freely opened and closed. On the other hand, a slide hatch 61 serving as an outlet for the dried material is attached to the right end face of the rotating drum 11, and can slide with respect to the fixed chamber 18. The slide hatch 61 comes into close contact with the right end face of the rotating drum 11 and the outlet is closed by clamping the slide hatch 6 1 and the right end face of the rotating drum 11 with the clamp 62, and the clamp 62 is released Then, the slide hatch 61 slides and moves away from the right end face of the rotating drum 11 to open the outlet.
脱臭装置 7 0の排気管 7 1はダク ト 3 1に接続されており、 ダク ト 3 1内から 気体 （蒸気や臭気を含む） の一部を取り出す。 排気管 7 1には凝縮器 7 2が介装 されている。 凝縮器 7 2には、 マイクロ波発振器 5 1及びアイソレータ 5 4を冷 却してきた冷却水が流通しており、 ダク ト 3 1内から取り出した気体中に含まれ ていた蒸気が凝縮してドレン水 Wとなる。 このドレン水 W中に臭気が溶け込むた め臭気の除去ができる。  The exhaust pipe 71 of the deodorizing device 70 is connected to the duct 31 and takes out a part of gas (including steam and odor) from the duct 31. A condenser 72 is interposed in the exhaust pipe 71. Cooling water that has cooled the microwave oscillator 51 and the isolator 54 flows through the condenser 72, and the vapor contained in the gas extracted from the duct 31 is condensed and drained. It becomes water W. The odor dissolves in the drain water W, so the odor can be removed.
また必要に応じて活性炭を詰めた脱臭フィルタ 7 3を付加して、 気体中の臭気 の除去を更に行なうようにしてもよい。 脱臭フィルタ 7 3を通過する気体は、 凝 縮器 7 2にて蒸気が除去されているため、 活性炭の寿命が長くなる。  If necessary, a deodorizing filter 73 filled with activated carbon may be added to further remove the odor in the gas. Since the gas passing through the deodorizing filter 73 has its vapor removed by the condenser 72, the life of the activated carbon is prolonged.
また、 マイクロ波の漏洩防止のために、 ダク ト入口部 3 1 b及びダク ト出口部 3 1 aにダリッ ドパネル 8 0 , 8 1が設けられている。 これにより安全性が高ま つている。  In addition, to prevent microwave leakage, the duct panels 80 and 81 are provided at the duct entrance 31b and the duct exit 31a. This has increased safety.
ここで、 上記構成となっているマイクロ波回転乾燥機 1の動作を、 食品加工残 渣の処理手順に従い説明する。  Here, the operation of the microwave rotary dryer 1 having the above configuration will be described in accordance with a procedure for processing food processing residues.
駆動用電動機 1 4の駆動制御をすることにより、 回転ドラム 1 1を回転させ、 投入用ハッチ 6 0が上周面に位置したところで、 回転ドラム 1 1の回転を停止さ せる。 この状態で投入用ハッチ 6 0を開き、 食品加工工場等で発生する品質の良 好な食品加工残渣を、 回転ドラム 1 1内に一括して投入する。 その後に投入用ハ ツチ 6 0を閉じる。 このときスライ ドハツチ 6 1 も閉じられている。 なお、 投入 される食品加工残渣の含水率は 8 0〜 6 0 w t %である。 By controlling the drive of the drive motor 14, the rotating drum 11 is rotated, When the charging hatch 60 is positioned on the upper peripheral surface, the rotation of the rotating drum 11 is stopped. In this state, the charging hatch 60 is opened, and high-quality food processing residues generated in a food processing factory or the like are collectively charged into the rotating drum 11. Then close the input hatch 60. At this time, slide hatch 61 is also closed. The water content of the input food processing residue is 80 to 60 wt%.
駆動用電動機 1 4の駆動制御をすることにより、 回転ドラム 1 1を正転回転さ せる。 同時に熱風供給装置 3 0を作動させ回転ドラム 1 1内に熱風を循環送風さ せる。 回転ドラム 1 1が回転することにより、 回転ドラム 1 1の下方に溜まった 食品加工残渣は、 リフタ一ブレード 1 5により周方向に沿い上方に搔き上げられ 、 周方向の頂部に近づくと上方から下方に落下する。 このため食品加工残渣は、 回転ドラム 1 1内で攪拌されつつ熱風に効率的に接触して加熱されていく。 このように食品加工残渣は熱風により加熱されるため、 含んでいた水分が蒸発 していき乾燥してくる。 熱風による加熱は、 食品加工残渣の表面から内部に熱伝 導することにより行なわれるため、 食品加工残渣は表面側から順に乾燥していく 。 なお、 食品加工残渣の炭化を防ぐため、 熱風の温度は 1 2 0〜1 5 0 ° C程度 に抑えている。  By controlling the drive of the drive motor 14, the rotary drum 11 is rotated forward. At the same time, the hot air supply device 30 is operated to circulate hot air into the rotating drum 11. As the rotating drum 11 rotates, the food processing residue accumulated below the rotating drum 11 is lifted up along the circumferential direction by the lifter blade 15, and from the top when approaching the circumferential top. Fall down. For this reason, the food processing residue is heated while being efficiently contacted with hot air while being stirred in the rotating drum 11. In this way, the food processing residue is heated by hot air, so that the contained water evaporates and dries. Heating by hot air is performed by conducting heat from the surface of the food processing residue to the inside, so that the food processing residue dries in order from the surface side. In order to prevent carbonization of food processing residues, the temperature of hot air is kept at around 120 to 150 ° C.
熱風加熱を開始してから、 予め決めた一定時間が経過したら、 熱風供給装置 3 0による加熱を継続しつつ、 マイクロ波供給装置 5 0を作動させ、 マイクロ波を 回転ドラム 1 1内に放射する。 このため食品加工残渣は、 マイクロ波によっても 加熱 （マイクロ波誘導加熱） される。  When a predetermined period of time has elapsed since the start of hot air heating, the microwave supply device 50 is operated while the heating by the hot air supply device 30 is continued, and microwaves are radiated into the rotating drum 11. . For this reason, food processing residues are also heated by microwaves (microwave induction heating).
導波管 5 2の先端開口面が斜め下方に向かい開口しているため、 マイクロ波は 、 回転ドラム 1 1の下方空間、 つまり、 食品加工残渣が存在する部分に向かって 放射される。 し力、も、 金属製のリフタ一ブレード 1 5が周方向に回転しているた め、 回転ドラム 1 1内での電界強度はリフタ一ブレード 1 5の移動に伴い変化し ていく。 つまり、 マイクロ波は回転ドラム 1 1内で定在波となることなく電波分 布強度が変化していき、 いわば、 マイクロ波 （電波） が回転ドラム 1 1内でかき 混ぜられる。 この結果、 放射されたマイクロ波は効率的かつ確実に食品加工残渣 に吸収される。 かく して、 回転ドラム 1 1内の食品加工残渣を片寄なく良好にマ ィク口波加熱して乾燥させることができる。 上記マイクロ波加熱は、 食品加工残渣 （誘電体） の内部に浸透したマイクロ波 が誘電損により熱に変わることにより食品加工残渣の内部から加熱する、 所謂 「 内部加熱」 であり、 急速加熱が可能であると共に内部の水分を外部に押し出す作 用がある。 また、 熱風による加熱は、 食品加工残渣を表面側から加熱する、 所謂 「外部加熱」 である。 食品加工残渣は熱風による外部加熱と、 マイクロ波による 内部加熱により加熱されるため、 内部も外部も均一に加熱され、 乾燥ムラがなく 短時間で乾燥していく。 Since the end opening surface of the waveguide 52 is opened obliquely downward, the microwave is radiated toward the space below the rotating drum 11, that is, the portion where the food processing residue is present. Since the lifter blade 15 made of metal is rotating in the circumferential direction, the electric field strength in the rotating drum 11 changes with the movement of the lifter blade 15. In other words, the microwave distribution of the microwave changes in intensity without becoming a standing wave in the rotating drum 11, so that the microwave (radio wave) is stirred inside the rotating drum 11. As a result, the emitted microwaves are efficiently and reliably absorbed by the food processing residue. In this way, the food processing residue in the rotating drum 11 can be dried by heating the microwave with good uniformity without unevenness. The above-mentioned microwave heating is a so-called “internal heating” in which microwaves penetrating into the food processing residue (dielectric) are converted into heat by dielectric loss to heat from inside the food processing residue, so-called “internal heating”, and rapid heating is possible. In addition, it has the function of pushing out the moisture inside. Heating with hot air is what is called “external heating” in which food processing residues are heated from the surface side. Since food processing residues are heated by external heating using hot air and internal heating using microwaves, both the inside and the outside are heated uniformly, drying quickly and without drying unevenness.
つまり、 食品加工残渣の含水率が低下すると、 熱風乾燥だけでは乾燥速度が遅 くなり乾燥時間が長くなるので、 マイクロ波加熱を併用することにより、 食品加 ェ残渣の内部からも加熱して内部の水分を表面に押し出し、 乾燥速度を早めて乾 燥時間の短縮化を図るように工夫しているのである。 また、 マイクロ波は水分の 多いところで選択的に吸収され発熱するため、 乾燥ムラが生じにく くなり均一乾 燥を促進することもできる。  In other words, if the moisture content of the food processing residue decreases, the drying speed is slowed by hot air drying alone, and the drying time is prolonged. The water is pushed out to the surface, and the drying speed is increased to shorten the drying time. In addition, since microwaves are selectively absorbed in a high-moisture environment and generate heat, uneven drying is less likely to occur and uniform drying can be promoted.
食品加工残渣は加熱され乾燥していき、 乾燥物に変化していく。 この乾燥物は 、 温度上昇と、 マイクロ波照射により殺菌されている。  Food processing residues are heated and dried, turning into dried products. The dried product is sterilized by temperature rise and microwave irradiation.
食品加工残渣が乾燥した乾燥物は、 リフターブレード 1 5により攪拌されるこ とにより破砕され細かくなり顆粒状となっていく。 この乾燥物は、 回転ドラム 1 1が傾斜して配置されているため、 リフタ一ブレード 1 5により搔き上げられて から落下されるごとに、 回転ドラム 1の右端側 （傾斜して下側となった部分） に 次第に移動していく。 回転ドラム 1 1の右側に移動して溜まってきた乾燥物は、 スパイラルブレード 1 6により左端側 （傾斜して上側となった部分） に向かって 押し上げられる。  The dried product obtained by drying the food processing residue is crushed by the agitation by the lifter blade 15 to become fine and granular. Since the rotating drum 11 is inclined, the dried product is lifted up by the lifter blade 15 and then dropped. Gradually move to The dried matter that has moved to the right side of the rotating drum 11 and accumulated there is pushed up by the spiral blade 16 toward the left end side (the inclined upper part).
食品加工残澄が乾燥した乾燥物の含水率が、 目標とする含水率 （例えば 1 O w t %) になったら、 熱風供給装置 3 0及びマイクロ波供給装置 5 0による加熱を 停止すると共に回転ドラム 1 1の回転を停止する。  When the moisture content of the dried food processing residue becomes the target moisture content (for example, 1 O wt%), the heating by the hot air supply device 30 and the microwave supply device 50 is stopped, and the rotating drum is stopped. 1 Stop the rotation of 1.
次に、 クランプ 6 2を解除してスライ ドハツチ 6 1をスライ ド移動させ回転ド ラム 1 1の右端面から離す。 これにより、 回転ドラム 1 1の右端面を大きく開放 することができ、 この右端面全体を広い取出口として乾燥物をスムーズに排出 · 払出することができる。 このように取出口を大きく開くことができるので、 この マイクロ波回転乾燥機 1は、 大量の食品加工残渣を一括処理 （バッチ処理） する ことのできる、 大型の乾燥機として製品化して好適である。 Next, the clamp 62 is released, and the slide hatch 61 is slid and moved away from the right end face of the rotary drum 11. As a result, the right end face of the rotating drum 11 can be largely opened, and the entire right end face can be made a wide outlet to smoothly discharge and discharge the dried matter. Because the opening can be greatly opened like this, The microwave rotary dryer 1 is suitable for commercialization as a large-sized dryer capable of batch processing (batch processing) a large amount of food processing residues.
乾燥物の排出 ·払出の際に、 駆動用電動機 1 4を制御して回転ドラム 1 1を逆 転回転させるようにすれば、 スパイラルブレード 1 6により乾燥物を積極的に下 方に押し下げて移送 ·払出ができ、 乾燥物の取出を短時間で容易に行なうことが できる。  By controlling the drive motor 14 to rotate the rotating drum 11 in the reverse direction when discharging and discharging the dried product, the dried product is positively pushed down by the spiral blade 16 and transferred. · Dispensing can be performed, and dry matter can be easily removed in a short time.
目標含水率 （例えば 1 O w t %) となった乾燥物の体積は、 当初の食品加工残 渣 （含水率が 8 0〜6 0 w t %) の体積の約 1 / 5となっており減量されている 。 このため、 この乾燥物の輸送 '保管は容易に行なうことができる。 また、 加熱 されると共にマイクロ波が照射されているため、 乾燥物中の微生物の繁殖も抑え られており安全性も高い。 よって、 この乾燥物を乾燥食品素材や配合飼料の原料 として有効に利用することができる。  The volume of the dried product that has reached the target moisture content (for example, 1 O wt%) is about 1/5 of the volume of the original food processing residue (water content of 80 to 60 wt%), and is reduced. ing . Therefore, transportation and storage of the dried product can be easily performed. In addition, the microwaves are radiated while being heated, so the growth of microorganisms in the dried product is suppressed and the safety is high. Therefore, this dried product can be effectively used as a raw material of a dried food material or a compound feed.
また、 マイクロ波供給装置 5 0を乾燥途中から作動させるようにしているため 、 消費電力を節約することができる。 なお、 食品加工残渣の投入量や含水率に応 じて、 熱風供給装置 3 0から発生する熱風の温度や、 マイクロ波加熱の投入タイ ミングゃ、 乾燥時間を最適に調節することにより、 省エネルギーを図るようにし ている。  In addition, since the microwave supply device 50 is operated during drying, power consumption can be reduced. Energy saving can be achieved by optimally adjusting the temperature of the hot air generated from the hot air supply device 30, the timing of microwave heating input, and the drying time according to the input amount and moisture content of food processing residues. I try to do it.
更に、 乾燥処理が終了したら、 投入用ハッチ 6 0及びスライ ドハツチ 6 1を開 放して、 回転ドラム 1 1内の清掃を行うことができ、 乾燥機を衛生的に使用する ことができる。  Further, when the drying process is completed, the charging hatch 60 and the slide hatch 61 are opened, and the inside of the rotary drum 11 can be cleaned, so that the dryer can be used hygienically.
<第 2の実施例 >  <Second embodiment>
次に本発明の第 2の実施例にかかるマイクロ波回転乾燥機 1 0 1を、 第 3図を 参照しつつ説明する。 第 2の実施例にかかるマイクロ波回転乾燥機 1 0 1では、 熱風乾燥とマイクロ波乾燥を併用するという基本構成は、 第 1図及び第 2図に示 す第 1の実施例にかかるマイクロ波回転乾燥機 1と同様であるが、 配置構成等が 一部異なる。 このため、 第 1の実施例のマイクロ波回転乾燥機 1 と異なる部分を 中心に説明をし、 同一機能を果たす部分には同一符号を付し、 重複する説明は省 略する。  Next, a microwave rotary dryer 101 according to a second embodiment of the present invention will be described with reference to FIG. In the microwave rotary dryer 101 according to the second embodiment, the basic configuration of using both hot air drying and microwave drying is the same as that of the microwave rotary dryer according to the first embodiment shown in FIG. 1 and FIG. Same as the tumble dryer 1 but partially differs in the arrangement and configuration. For this reason, the description will focus on the parts that are different from the microwave rotary dryer 1 of the first embodiment, and the parts that perform the same function will be assigned the same reference numerals, and redundant description will be omitted.
第 2の実施例にかかるマイクロ波回転乾燥機 1 0 1では、 回転ドラム装置 1 0 の回転ドラム 1 1は、 その回転軸が水平となる状態で、 回転支持ローラ 1 3 a， 1 3 bにより回転自在に支持されている。 また回転ドラム 1 1の内周面には、 リ フタ一ブレード 1 5のみが備えられており、 スパイラルブレードは備えられてい ない。 In the microwave rotary dryer 101 according to the second embodiment, the rotating drum device 10 The rotating drum 11 is rotatably supported by rotation supporting rollers 13a and 13b with its rotating shaft being horizontal. Further, only the lifter blade 15 is provided on the inner peripheral surface of the rotating drum 11, and no spiral blade is provided.
固定チャンバ 1 7と回転ドラム 1 1との間には回転軸受 1 9が介装され、 同様 に、 固定チャンバ 1 8と回転ドラム 1 1との間には回転軸受 2 1が介装されてい マイクロ波供給装置 5 0の導波管 5 2は、 水平面に対して傾斜する状態で配置 されており、 導波管 5 2の先端開口面は、 導波管軸方向に対して直角になってい る。 したがってマイクロ波発振器 5 1から導かれ導波管 5 2の先端開口面から放 射されたマイクロ波は、 導波管軸方向に沿い進行していく。 このため、 マイクロ 波は回転ドラム 1 1の下方空間に向かって放射され、 回転ドラム 1 1内に投入さ れる食品加工残渣に効率的に入射する。 この場合、 回転ドラム 1 1が水平配置さ れる一方で、 導波管 5 2が斜め配置されているため、 食品加工残渣の表面に対し て斜めにマイクロ波が入射し、 効率的に吸収される。  A rotating bearing 19 is interposed between the fixed chamber 17 and the rotating drum 11, and a rotating bearing 21 is similarly interposed between the fixed chamber 18 and the rotating drum 11. The waveguide 52 of the wave supply device 50 is arranged so as to be inclined with respect to the horizontal plane, and the opening surface at the tip end of the waveguide 52 is perpendicular to the waveguide axis direction. . Therefore, the microwave guided from the microwave oscillator 51 and emitted from the opening face of the tip of the waveguide 52 travels along the waveguide axis direction. Therefore, the microwave is radiated toward the space below the rotating drum 11 and efficiently enters the food processing residue introduced into the rotating drum 11. In this case, while the rotating drum 11 is disposed horizontally, the waveguide 52 is disposed obliquely, so that the microwave is obliquely incident on the surface of the food processing residue and is efficiently absorbed. .
回転ドラム 1 1の周面には、 投入口及び取出口となる投入 '取出ハッチ 6 3が 開閉自在に取り付けられている。 この投入 '取出ハッチ 6 3は、 回転ドラム 1 1 の軸方向に沿い長い部材となっている。 前述した第 1の実施例では、 投入口とな る投入用ハッチ 6 0と取出口となるスライ ドハツチ 6 1を備えていたが、 本実施 例では、 投入口及び取出口を兼用する 1つの投入 '取出ハッチ 6 3を備えている 回転ドラム 1 1内に食品加工残渣を投入する際には、 投入 '取出ハッチ 6 3を 上周面に位置させた状態にして、 投入 ·取出ハッチ 6 3を開放し、 食品加工残渣 の投入を行う。  An input / output hatch 63 serving as an input port and an output port is mounted on the peripheral surface of the rotating drum 11 so as to be freely opened and closed. The input and output hatch 63 is a member that is long along the axial direction of the rotating drum 11. In the first embodiment described above, the input hatch 60 serving as an inlet and the slide hatch 61 serving as an outlet are provided. In the present embodiment, however, one input hatch which also serves as an inlet and an outlet is provided. 'When loading food processing residues into the rotating drum 11 equipped with the take-out hatch 63, put the' put-in hatch 63 3 on the upper peripheral surface, and Open and feed food processing residues.
食品加工残渣の乾燥が完了して乾燥物を回転ドラム 1 1から払出す際には、 投 入 ·取出ハッチ 6 3を下周面に位置させた状態にして、 投入 '取出ハッチ 6 3を 開放し、 乾燥物の排出 ·払出をする。 この場合、 投入 ·取出ハッチ 6 3は軸方向 に長い部材であるため、 開放前では乾燥物は殆ど投入 '取出ハッチ 6 3に載った 状態となっているため、 投入 ·取出ハッチ 6 3を開放するだけで、 乾燥物が自重 により自然落下して外部への排出 ·払出が簡単にできる。 When the food processing residue is completely dried and the dried product is to be discharged from the rotating drum 11, keep the input / output hatch 63 3 on the lower peripheral surface and open the input / output hatch 63. And discharge / discharge dry matter. In this case, the input / exit hatch 6 3 is a member that is long in the axial direction, so almost all of the dry matter is on the input / exit hatch 6 3 before opening, so the input / exit hatch 6 3 is opened. Just dry the weight It can be easily dropped and discharged to the outside.
第 2の実施例では、 回転ドラム 1 1を水平配置し、 投入口及び取出口を兼用す る 1つの投入 ·取出ハッチ 6 3を備える構造とするとともに、 スパイラルブレー ドを不要として乾燥物を自然落下させて取り出す構成としているため、 排出 ·払 出の機構を簡素化でき、 特に食品加工残渣を一括処理 （バッチ処理） する小型の 乾燥機として製品化して好適である。  In the second embodiment, the rotary drum 11 is horizontally arranged, and a single input / exit hatch 63 that doubles as an input port and an output port is provided. Since it is configured to be dropped and taken out, the mechanism of discharging and discharging can be simplified, and it is particularly suitable to be commercialized as a small-sized dryer that batch-processes (batch-processes) food processing residues.
更に、 乾燥処理が終了したら、 投入 ·取出ハッチ 6 3を開放して、 回転ドラム 1 1内の清掃を行うことができ、 乾燥機を衛生的に使用することができる。 なお、 他の部分の構成 ·動作は第 1の実施例と同様である。  Furthermore, when the drying process is completed, the loading / unloading hatch 63 is opened, and the inside of the rotating drum 11 can be cleaned, so that the dryer can be used hygienically. The configuration and operation of the other parts are the same as in the first embodiment.
また上述した 2つの実施例では、 本発明により食品加工残渣を乾燥する例を述 ベたが、 種々の食品 （食品素材） を乾燥させて人間が食する乾燥食品を製造する 場合にも、 本発明を適用することができることは勿論である。 産業上の利用可能性  In the two embodiments described above, examples of drying food processing residues according to the present invention have been described. However, the present invention is also applicable to the case where various foods (food materials) are dried to produce dried foods that humans eat. Of course, the invention can be applied. Industrial applicability
以上のように、 本発明にかかるマイクロ波回転乾燥機は、 食品加工残渣ゃ種々 の食品を乾燥して、 乾燥食品素材や家畜用飼料や乾燥食品を製造する産業分野に 用いて好適である。  As described above, the microwave rotary dryer according to the present invention is suitable for use in the industrial field of producing dried food materials, livestock feed, and dried food by drying food processing residues—various foods.

Claims

請求の範囲 The scope of the claims
1. 回転ドラムを有する回転ドラム装置と、 1. a rotating drum device having a rotating drum;
熱風を発生して前記回転ドラム内に熱風を流通させる熱風供給装置と、 前記回転ドラム内にマイク口波を供給するマイク口波供給装置と、 で構成さ れていることを特徴とするマイク口波回転乾燥機。  A hot air supply device that generates hot air and distributes the hot air through the rotary drum; and a microphone mouth wave supply device that supplies a microphone mouth wave into the rotary drum. Wave tumble dryer.
2. 軸方向に平行なリフターブレードが内周面の周方向に沿う複数箇所に備えら れた回転ドラムと、 この回転ドラムを支持しつつ周方向に沿い回転させるドラ ム支持 ·駆動装置とでなる回転ドラム装置と、  2. A rotating drum provided with a plurality of lifter blades parallel to the axial direction along the circumferential direction of the inner peripheral surface, and a drum support and drive device that supports the rotating drum and rotates it along the circumferential direction. Rotating drum device,
ダク ト入口部が前記回転ドラムの一端面に連通しダク ト出口部が前記回転ド ラムの他端面に連通しているダク トと、 このダク 卜に介装されており燃料を燃 焼して得た燃焼ガスを前記ダク ト内に吹き込む熱風発生器と、 前記ダク 卜に介 装されておりダク ト内の空気をダク 卜入口部からダク ト出口部に向けて送風す る循環送風機とでなる熱風供給装置と、  A duct having a duct inlet portion communicating with one end surface of the rotary drum and a duct outlet portion communicating with the other end surface of the rotary drum, and a fuel interposed between the duct and burning fuel. A hot air generator that blows the obtained combustion gas into the duct, and a circulating blower that is provided in the duct and blows the air in the duct from the duct inlet toward the duct outlet. Hot air supply device,
マイク口波を発生するマイク口波発振装置と、 前記回転ドラムの端面から回 転ドラム内に挿入され、 発生したマイク口波を導いて回転ドラム内に放射する 導波管とでなるマイクロ波供給装置と、 で構成されていることを特徴とするマ イク口波回転乾燥機。  A microwave supply comprising: a microphone mouth wave oscillator for generating a microphone mouth wave; and a waveguide inserted into the rotation drum from an end face of the rotating drum and guiding the generated microphone mouth wave and radiating into the rotating drum. A microphone mouth wave rotary dryer comprising: an apparatus;
3. 回転軸が水平となる状態で配置されると共に軸方向に平行なリフタ一ブレー ドが内周面の周方向に沿う複数箇所に備えられた回転ドラムと、 この回転ドラ ムを支持しつつ周方向に沿い回転させるドラム支持 ·駆動装置とでなる回転ド ラム装置と、  3. A rotating drum provided with a plurality of lifter blades that are arranged in a state where the rotating shaft is horizontal and that are parallel to the axial direction along the circumferential direction of the inner peripheral surface, while supporting the rotating drum. A rotating drum device consisting of a drum support and drive device that rotates along the circumferential direction;
ダク ト入口部が前記回転ドラムの一端面に連通しダク ト出口部が前記回転ド ラムの他端面に連通しているダク 卜と、 このダク 卜に介装されており燃料を燃 焼して得た燃焼ガスを前記ダク ト内に吹き込む熱風発生器と、 前記ダク トに介 装されておりダク ト内の空気をダク ト入口部からダク ト出口部に向けて送風す る循環送風機とでなる熱風供給装置と、  A duct having a duct inlet portion communicating with one end surface of the rotary drum and a duct outlet portion communicating with the other end surface of the rotary drum, and a fuel interposed in the duct to burn fuel. A hot air generator that blows the obtained combustion gas into the duct, and a circulating blower that is interposed in the duct and blows the air in the duct from the duct inlet toward the duct outlet. Hot air supply device,
マイク口波を発生するマイク口波発振装置と、 前記回転ドラムの端面から回 転ドラム内に挿入されると共に発生したマイク口波を導いて回転ドラム内の下 方空間に向けて斜めに放射するように斜め配置された導波管とでなるマイクロ 波供給装置と、 で構成されていることを特徴とするマイク口波回転乾燥機。A microphone mouth wave oscillator for generating a microphone mouth wave, and a microphone mouth wave inserted into the rotating drum from the end face of the rotating drum and guiding the generated microphone mouth wave to form A microwave supply device comprising: a microwave supply device comprising a waveguide arranged obliquely so as to radiate obliquely toward a space;
4. 回転軸が水平面に対して傾斜する状態で配置されると共に軸方向に平行なリ フタ一ブレードが内周面の周方向に沿う複数箇所に備えられ且つ内周面のうち 傾斜して下側となつた内周面部分には螺旋状のスパイラルプレードが備えられ た回転ドラムと、 この回転ドラムを支持しつつ周方向に沿い回転させるドラム 支持 ·駆動装置とでなる回転ドラム装置と、 4. The lifter blades are arranged at a plurality of positions along the circumferential direction of the inner circumferential surface, and the lifter blades are arranged in a state where the rotation axis is inclined with respect to the horizontal plane, and are inclined at the A rotating drum device comprising a rotating drum provided with a spiral spiral blade on the inner peripheral surface portion connected to the side, and a drum supporting and driving device for rotating the rotating drum along the circumferential direction while supporting the rotating drum;
ダク ト入口部が前記回転ドラムの一端面に連通しダク ト出口部が前記回転ド ラムの他端面に連通しているダク 卜と、 このダク 卜に介装されており燃料を燃 焼して得た燃焼ガスを前記ダク ト内に吹き込む熱風発生器と、 前記ダク トに介 装されておりダク ト内の空気をダク ト入口部からダク ト出口部に向けて送風す る循環送風機とでなる熱風供給装置と、  A duct having a duct inlet portion communicating with one end face of the rotary drum and a duct outlet portion communicating with the other end face of the rotary drum, and a fuel interposed in the duct for burning fuel. A hot air generator that blows the obtained combustion gas into the duct, and a circulating blower that is interposed in the duct and blows the air in the duct from the duct inlet toward the duct outlet. Hot air supply device,
マイク口波を発生するマイク口波発振装置と、 前記回転ドラムの端面から回 転ドラム内に挿入されると共に発生したマイク口波を導いて回転ドラム内の下 方空間に向けて斜めに放射するように先端開口が斜め下方に向かい開口してい る導波管とでなるマイクロ波供給装置と、 で構成されていることを特徴とする マイクロ波回転乾燥機。  A microphone mouth wave generator for generating a microphone mouth wave, and a microphone mouth wave that is inserted into the rotating drum from the end face of the rotating drum and guides the generated microphone mouth wave to radiate obliquely toward a lower space in the rotating drum. A microwave supply device comprising a waveguide having a tip end opening diagonally downward as described above, and a microwave rotary drier.
5. 請求の範囲第 2項または請求の範囲第 3項または請求の範囲第 4項において 、 前記ダク ト内から一部の気体を取り出し、 取り出した気体を、 前記マイクロ 波発振装置を冷却するための冷却水により冷却することにより、 前記気体中に 含まれている蒸気を凝縮させてドレン排水として外部に排出すると共に蒸気が 除去された気体を外部に排出する凝縮器を有する脱臭装置が備えられているこ とを特徴とするマイクロ波回転乾燥機。  5. The method according to claim 2, wherein a part of the gas is taken out of the duct, and the taken-out gas is used for cooling the microwave oscillation device. A deodorizing device having a condenser for condensing the vapor contained in the gas and discharging the vapor to the outside as drain wastewater and discharging the gas from which the vapor has been removed to the outside by cooling with the cooling water. A microwave rotary dryer.
6. 請求の範囲第 5項において、 前記脱臭装置には、 前記凝縮器から排出される 気体を通過させてから外部に排出する脱臭フィルタが備えられていることを特 徴とするマイクロ波回転乾燥機。  6. The microwave rotary drying device according to claim 5, wherein the deodorizing device is provided with a deodorizing filter that passes gas discharged from the condenser and then discharges the gas to the outside. Machine.
7. 前記ダク ト入口部及び前記ダク ト出口部には、 マイクロ波漏洩防止のための グリッ ドパネルが設けられていることを特徴とする請求の範囲第 2項または請 求の範囲第 3項または請求の範囲第 4項のマイク口波回転乾燥機。 補正書の請求の範囲 7. A grid panel for preventing microwave leakage from being provided at the duct entrance and the duct exit, wherein the grid panel is configured to prevent microwave leakage. 5. The microphone mouth wave rotary dryer according to claim 4. Claims of amendment
[ 2 0 0 0年 1 0月 3日 （0 3 . 1 0 . 0 0 ) 国際事務局受理：出願当初の 請求の範囲 1 — 7は補正された；新しい請求の範囲 1—9が加えられた； [October 3, 2000 (0 3.10.0.0) Accepted by the International Bureau: Claims 1-7 originally filed have been amended; new claims 1-9 have been added Was;
他の請求の範囲は変更なし。 （3頁）]  Other claims remain unchanged. (Page 3)]
1. (削除）  1. (Delete)
2. 軸方向に平行なリフターブレードが内周面の周方向に沿う複数箇所に備えら れた回転ドラムと、 この回転ドラムを支持しつつ周方向に沿い回転させるドラ ム支持 ·駆動装置とでなる回転ドラム装置と、  2. A rotating drum provided with a plurality of lifter blades parallel to the axial direction along the circumferential direction of the inner peripheral surface, and a drum support and drive device that supports the rotating drum and rotates it along the circumferential direction. Rotating drum device,
ダク ト入口部が前記回転ドラムの一端面に連通しダク ト出口部が前記回転ド ラムの他端面に連通しているダク 卜と、 このダク 卜に介装されており燃料を燃 焼して得た燃焼ガスを前記ダク ト内に吹き込む熱風発生器と、 前記ダク 卜に介 装されておりダク ト内の空気をダク ト入口部からダクト出口部に向けて送風す る循環送風機とでなる熱風供給装置と、  A duct having a duct inlet portion communicating with one end surface of the rotary drum and a duct outlet portion communicating with the other end surface of the rotary drum, and a fuel interposed in the duct to burn fuel. A hot-air generator that blows the obtained combustion gas into the duct, and a circulating blower that is interposed in the duct and blows the air in the duct from the duct inlet toward the duct outlet. A hot air supply device,
マイク口波を発生するマイク口波発振装置と、 前記回転ドラムの端面から回 転ドラム内に挿入され、 発生したマイク口波を導いて回転ドラム内に放射する 導波管とでなるマイクロ波供給装置と、 で構成されていることを特徴とするマ ィク口波回転乾燥機。  A microwave supply comprising: a microphone mouth wave oscillator for generating a microphone mouth wave; and a waveguide inserted into the rotation drum from an end face of the rotating drum and guiding the generated microphone mouth wave and radiating into the rotating drum. A micro-mouth wave rotary dryer comprising: an apparatus;
3. 回転軸が水平となる状態で配置されると共に軸方向に平行なリフターブレー ドが内周面の周方向に沿う複数箇所に備えられた回転ドラムと、 この回転ドラ ムを支持しつつ周方向に沿い回転させるドラム支持 ·駆動装置とでなる回転ド ラム装置と、  3. A rotating drum provided with a plurality of lifter blades that are arranged in a state where the rotating shaft is horizontal and that are parallel to the axial direction along the circumferential direction of the inner peripheral surface. A rotary drum device consisting of a drum support and a drive device that rotates along the direction;
ダク 卜入口部が前記回転ドラムの一端面に連通しダク 卜出口部が前記回転ド ラムの他端面に連通しているダク 卜と、 このダク 卜に介装されており燃料を燃 焼して得た燃焼ガスを前記ダク 卜内に吹き込む熱風発生器と、 前記ダク 卜に介 装されておりダク ト内の空気をダク ト入口部からダク ト出口部に向けて送風す る循環送風機とでなる熱風供給装置と、  A duct having a duct inlet portion communicating with one end surface of the rotary drum and a duct outlet portion communicating with the other end surface of the rotary drum; and a fuel interposed in the duct for burning fuel. A hot air generator that blows the obtained combustion gas into the duct, and a circulating blower that is interposed in the duct and blows the air in the duct from the duct inlet toward the duct outlet. Hot air supply device,
マイク口波を発生するマイク口波発振装置と、 前記回転ドラムの端面から回 転ドラム内に挿入されると共に発生したマイクロ波を導いて回転ドラム内の下 方空間に向けて斜めに放射するように斜め配置された導波管とでなるマイク口 波供給装置と、 で構成されていることを特徴とするマイクロ波回転乾燥機。 A microphone mouth wave oscillation device for generating a microphone mouth wave, and a microphone inserted into the rotating drum from the end face of the rotating drum and guiding the generated microwave to radiate obliquely toward a lower space in the rotating drum. A microwave rotary drier comprising: a microwave microwave supply device comprising a waveguide obliquely disposed in a microwave oven;
4. 回転軸が水平面に対して傾斜する状態で配置されると共に軸方向に平行なリ 4. A rotary shaft that is arranged with the rotation axis inclined with respect to the horizontal plane and that is parallel to the axial
16 補正された用紙 （条約第 19条） フタ一ブレードが内周面の周方向に沿う複数箇所に備えられ且つ内周面のうち 傾斜して下側となつた内周面部分には螺旋状のスパイラルプレードが備えられ た回転ドラムと、 この回転ドラムを支持しつつ周方向に沿い回転させるドラム 支持 ·駆動装置とでなる回転ドラム装置と、 16 Amended paper (Article 19 of the Convention) A rotary drum provided with a plurality of lid blades at a plurality of locations along the circumferential direction of the inner circumferential surface, and a helical spiral blade provided on an inner circumferential surface portion of the inner circumferential surface which is inclined and becomes lower; A rotating drum device comprising a drum support and a driving device for rotating the drum along the circumferential direction while supporting the rotating drum;
ダクト入口部が前記回転ドラムの一端面に連通しダク 卜出口部が前記回転ド ラムの他端面に連通しているダク卜と、 このダク 卜に介装されており燃料を燃 焼して得た燃焼ガスを前記ダク ト内に吹き込む熱風発生器と、 前記ダク 卜に介 装されておりダクト内の空気をダク ト入口部からダク ト出口部に向けて送風す る循環送風機とでなる熱風供給装置と、  A duct having an inlet portion communicating with one end surface of the rotary drum and a duct outlet portion communicating with the other end surface of the rotary drum; and a fuel interposed between the ducts and burning the fuel. A hot air generator that blows the combustion gas into the duct, and a circulating blower that is interposed in the duct and blows the air in the duct from the duct inlet toward the duct outlet. A supply device;
マイク口波を発生するマイク口波発振装置と、 前記回転ドラムの端面から回 転ドラム内に挿入されると共に発生したマイク口波を導いて回転ドラム内の下 方空間に向けて斜めに放射するように先端開口が斜め下方に向かい開口してい る導波管とでなるマイクロ波供給装置と、 で構成されていることを特徴とする マイクロ波回転乾燥機。  A microphone mouth wave generator for generating a microphone mouth wave, and a microphone mouth wave that is inserted into the rotating drum from the end face of the rotating drum and guides the generated microphone mouth wave to radiate obliquely toward a lower space in the rotating drum. A microwave supply device comprising a waveguide having a tip end opening diagonally downward as described above, and a microwave rotary drier.
5. (追加） 回転軸が水平面に対して傾斜する状態で配置されると共に軸方向に 平行なリフターブレードが内周面の周方向に沿う複数箇所に備えられ且つ内周 面のうち傾斜して下側となつた内周面部分には螺旋状のスパイラルプレードが 備えられた回転ドラムと、 この回転ドラムを支持しつつ周方向に沿い回転させ るドラム支持 ·駆動装置とでなる回転ドラム装置と、  5. (Addition) The rotating shaft is arranged so as to be inclined with respect to the horizontal plane, and lifter blades parallel to the axial direction are provided at a plurality of locations along the circumferential direction of the inner circumferential surface, and the lifter blades are inclined from the inner circumferential surface. A rotating drum device comprising a rotating drum provided with a spiral spiral blade on the inner peripheral surface portion connected to the lower side, and a drum supporting and driving device for rotating the rotating drum along the circumferential direction while supporting the rotating drum. ,
ダクト入口部が前記回転ドラムの一端面に連通しダク 卜出口部が前記回転ド ラムの他端面に連通しているダク卜と、 このダク 卜に介装されており燃料を燃 焼して得た燃焼ガスを前記ダク ト内に吹き込む熱風発生器と、 前記ダク 卜に介 装されておりダク ト内の空気をダク 卜入口部からダク卜出口部に向けて送風す る循環送風機とでなる熱風供給装置と、  A duct having an inlet portion communicating with one end surface of the rotary drum and a duct outlet portion communicating with the other end surface of the rotary drum; and a fuel interposed between the ducts and burning the fuel. A hot-air generator that blows the combustion gas into the duct, and a circulating blower that is interposed in the duct and blows the air in the duct from the duct inlet toward the duct outlet. A hot air supply device,
マイク口波を発生するマイク口波発振装置と、 前記回転ドラムの端面から回 転ドラム内に挿入されると共に発生したマイク口波を導いて回転ドラム内の下 方空間に向けて斜めに放射するように斜め配置された導波管とでなるマイクロ 波供給装置と、 で構成されていることを特徴とするマイク口波回転乾燥機。 A microphone mouth wave generator for generating a microphone mouth wave, and a microphone mouth wave that is inserted into the rotating drum from the end face of the rotating drum and guides the generated microphone mouth wave to radiate obliquely toward a lower space in the rotating drum. And a microwave supply device comprising a waveguide arranged obliquely as described above.
6. 請求の範囲第 1項または請求の範囲第 3項または請求の範囲第 4項または請 6. Claim 1 or claim 3 or claim 4 or contract
17 補正された用紙 （条約第 19条） 求の範囲第 5項において、 前記ダク ト内から一部の気体を取り出し、 取り出し た気体を、 前記マイク口波発振装置を冷却するための冷却水により冷却するこ とにより、 前記気体中に含まれて 、る蒸気を凝縮させてドレン排水として外部 に排出すると共に蒸気が除去された気体を外部に排出する凝縮器を有する脱臭 装置が備えられていることを特徴とするマイクロ波回転乾燥機。 17 Amended paper (Article 19 of the Convention) In Claim 5, a part of the gas is taken out from the duct, and the taken-out gas is included in the gas by cooling with a cooling water for cooling the microphone mouthpiece oscillator. A microwave rotary drier comprising a deodorizer having a condenser for condensing steam and discharging the same as drain water to the outside and discharging the gas from which the steam has been removed to the outside.
7. 請求の範囲第 6項において、 前記脱臭装置には、 前記凝縮器から排出される 気体を通過させてから外部に排出する脱臭フィルタが備えられていることを特 徴とするマイク口波回転乾燥機。  7. The microphone mouthpiece rotating device according to claim 6, wherein the deodorizing device is provided with a deodorizing filter that passes gas discharged from the condenser and then discharges the gas to the outside. Dryer.
8. 前記ダク ト入口部及び前記ダク ト出口部には、 マイクロ波漏洩防止のための グリッ ドパネルが設けられていることを特徴とする請求の範囲第 2項または請 求の範囲第 3項または請求の範囲第 4項または請求の範囲第 5項のマイク口波 回転乾燥機。  8. A grid panel for preventing microwave leakage at the duct entrance and the duct exit, wherein the grid panel is provided in claim 2 or claim 3 or claim 3. The microphone mouthpiece rotary dryer according to claim 4 or claim 5.
9. (追加） 請求の範囲第 2項ないし請求の範囲第 8項の何れか一項において、 前記導波管の先端にテフ口ン製のキャップを取り付けていることを特徴とするマ イク口波回転乾燥機。  9. (Addition) The microphone port according to any one of claims 2 to 8, wherein a cap made of Teflon is attached to a tip of the waveguide. Wave tumble dryer.
18 18
補正された用紙 （条約第 条) Amended paper (Article Articles of the Convention)
PCT/JP2000/004810 1999-07-22 2000-07-18 Microwave rotary drying machine WO2001007850A1 (en)

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CN106500472A (en) * 2016-11-22 2017-03-15 中联重机股份有限公司 A kind of drying machine for industrial crops
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CN109676996A (en) * 2018-12-28 2019-04-26 洛阳维尔健生物工程有限公司 A kind of tabletting dry integrated machine producing chewable tablets
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