WO2013157427A1 - Organic sludge and organic waste disposal device - Google Patents

Organic sludge and organic waste disposal device Download PDF

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Publication number
WO2013157427A1
WO2013157427A1 PCT/JP2013/060601 JP2013060601W WO2013157427A1 WO 2013157427 A1 WO2013157427 A1 WO 2013157427A1 JP 2013060601 W JP2013060601 W JP 2013060601W WO 2013157427 A1 WO2013157427 A1 WO 2013157427A1
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Prior art keywords
sludge
drum
casing
dried
drums
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PCT/JP2013/060601
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French (fr)
Japanese (ja)
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啓吾 清水
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Shimizu Keigo
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B23/00—Heating arrangements
    • F26B23/001—Heating arrangements using waste heat
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G5/00—Incineration of waste; Incinerator constructions; Details, accessories or control therefor
    • F23G5/02—Incineration of waste; Incinerator constructions; Details, accessories or control therefor with pretreatment
    • F23G5/04—Incineration of waste; Incinerator constructions; Details, accessories or control therefor with pretreatment drying
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G7/00—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals
    • F23G7/001—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals for sludges or waste products from water treatment installations
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B17/00—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement
    • F26B17/28—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement with movement performed by rollers or discs with material passing over or between them, e.g. suction drum, sieve, the axis of rotation being in fixed position
    • F26B17/284—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement with movement performed by rollers or discs with material passing over or between them, e.g. suction drum, sieve, the axis of rotation being in fixed position the materials being dried on the non-perforated surface of heated rollers or drums
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B17/00—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement
    • F26B17/28—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement with movement performed by rollers or discs with material passing over or between them, e.g. suction drum, sieve, the axis of rotation being in fixed position
    • F26B17/284—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement with movement performed by rollers or discs with material passing over or between them, e.g. suction drum, sieve, the axis of rotation being in fixed position the materials being dried on the non-perforated surface of heated rollers or drums
    • F26B17/286—Arrangements for application of materials to be dried onto the drums or rollers; Arrangements for removing dried materials from the drums or rollers, e.g. doctor blades
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W10/00—Technologies for wastewater treatment
    • Y02W10/40—Valorisation of by-products of wastewater, sewage or sludge processing

Definitions

  • the present invention relates to a method of treating organic sludge using these devices, in addition to a dryer using a waste heat directly and a biomass combustion furnace equipped with a double drum.
  • Treatment of organic sludge such as food residue, papermaking sludge, tea waste from a drinking water maker, organic waste such as coffee grounds or sewage sludge is generally dried and incinerated using fossil fuels.
  • the treatment cost is high and it is not a preferable treatment method from the viewpoint of global warming prevention.
  • Treatment of organic sludge such as food residue, papermaking sludge, tea waste from a drinking water maker, organic waste such as coffee grounds or sewage sludge is generally dried and incinerated using fossil fuels.
  • the treatment cost is high and it is not a preferable treatment method from the viewpoint of global warming prevention.
  • drying and incineration treatment of a tacky object to be treated it is sufficient for complete burning and incineration treatment provided that one pair of two rotating parallel facing drums is provided in the apparatus.
  • drying can be performed, drying can be performed sufficiently on the drum surface when the object to be treated does not have sticking ability or when the object to be treated having sticking ability is mixed with the object to be treated without sticking ability.
  • it has a problem that it is difficult to burn it completely by burning it in a combustion furnace.
  • the inventor of the present invention provides a compact apparatus for treating sludge without using fossil fuel, and there is no sticking property to organic sludge or an object to be treated which is an organic waste, or a sticking substance having sticking property.
  • Organic sludge and organic sludge that can be incinerated after being dropped to a portion of the combustion furnace so that all the objects to be treated can be completely combusted, even if the objects to be treated that do not have adhesion properties are mixed in with the objects to be treated It is effective to suppress the generation of offensive odor by treating it quickly without using steam in the waste treatment equipment and sludge drying in the treatment process, and to be able to treat by using the thermal energy of fuel more directly.
  • Processing apparatus method
  • the apparatus and method for treating organic sludge according to the present invention employ the following means in order to achieve the above object. That is, two drums heated and rotated by waste heat are provided in the casing, and dewatered sludge is dropped from above the casing to a portion where the drum surfaces of the two drums face in parallel, Two scrapers are provided to scrape dried sludge, and the two drums have a tube for introducing exhaust heat to the inside of the drum fixed inside the rotating shaft, and have an outlet for discharging the exhaust to the outside of the drum
  • the casing is structured to have an outlet for discharging the vapor and odor accumulated in the casing to the outside of the casing.
  • a drum is provided with two partition plates which slide to a portion into which the dewatered sludge is dropped to open and close the supply port, and the dry sludge is charged in a state where the inside and the outside of the casing are necessarily partitioned into any of the partition plates.
  • the casing is provided with two partition plates provided with two scrapers for scraping the surface-dried sludge and sliding between the lower part of the casing and the device for transporting the dried sludge to open and close the supply port.
  • the inside and the outside of the furnace must be provided with a double drum at the top and two partitions that slide the dewatered sludge down to the part where the two drum faces face in parallel from the top to drop the dewatered sludge to open and close the supply port.
  • Dehydrated sludge was introduced in a state partitioned into any of the partition plates, scrapers scraped off the dried sludge on the drum surface were provided on each drum surface, and a biomass combustion furnace was provided on the lower part to integrate them.
  • a biomass combustion furnace characterized by having a structure in which objects to be treated are charged in a fixed state, and a scraper for scraping the dried material on the drum surface is provided on each drum surface respectively and provided with a biomass combustion furnace at the bottom .
  • Dehydrated sludge is adhered to the drum surface of a double drum dryer heated by exhaust heat and dried, and the scraper scraped by the scraper installed inside the dryer is sent to a biomass combustion furnace to support biomass fuel
  • the dried sludge is incinerated while being used as fuel, and the waste heat is used as a heat source of the dryer.
  • the system can be easily operated without difficulty in controlling the vapor pressure optimally.
  • the number of sensors and accessories required is small, compact and economical.
  • integral type by performing both drying and incineration treatment in the combustion furnace, heat loss can be reduced as much as possible, and organic sludge can be dried and incinerated, so it is efficient without dispersing waste heat. Can be collected.
  • the sludge When drying and incinerating the dewatered sludge using the integrated type, the sludge is rapidly dried and incinerated at a high temperature around 900 ° C., unlike when drying the dewatered sludge using a steam drum, drying and drying There is almost no generation of an offensive odor due to the progress of rot in the subsequent transport process, and it is not necessary to separately install an expensive deodorizing system for the offensive odor of steaming discharged from the dryer.
  • the hearth surface of a general biomass combustion furnace has a flat or circular hearth surface with some flat hearth surface, and is shaped so as to sink toward the outer periphery on concentric circles in a hilly manner.
  • this is designed with the intention of smoothly dropping the combustion ash into the ash storage section, in the biomass combustion furnace, the combustion is performed well, and the clinker frequently causes problems with sewage sludge (high temperature If no vitrified residue is generated, the combustion ash is mostly taken up hollow and sent to a cyclone dust collector by a fan that attracts the exhaust gas, or dropped and accumulated in the lower part after being taken up.
  • the drum surface is bridged and fixed in a hub shape from the rotating shaft and is fixed without having a mirror surface. It is desirable that the heating be performed efficiently or that the drum be filled with a heat insulating material to efficiently heat the drum surface.
  • the integrated lower biomass burning furnace is not particularly limited as long as it can continuously supply biomass fuel and can operate continuously, but the swirl having the features described in FIGS. 3 to 5 and 6
  • the configuration has a stirring blade and a hearth surface.
  • organic sludge such as food residue, papermaking sludge, organic waste such as tea leaves and coffee wastes from drinking water manufacturers, sewage sludge and so on with biomass fuel.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Treatment Of Sludge (AREA)
  • Drying Of Solid Materials (AREA)

Abstract

An organic sludge disposal method characterized in that dehydrated sludge is adhered onto the surfaces of drums (also referred to as "drum surfaces") in a double-drum drier that is so adapted as to heat with exhaust heat and then dried, the dried sludge is removed with a scraper provided in the inside of the drier, the removed dried sludge is fed into a biomass combustion furnace to burn the dried sludge using a biomass fuel as an auxiliary fuel, and exhaust heat generated as the result of the burning is utilized as a heat source for the drier; or a biomass combustion furnace which has such a structure that a single set or multiple sets of double drums are provided in the upper part of the biomass combustion furnace, wherein two partition plates which can slide toward a part into which the dehydrated sludge is to be dropped down and can open/close a supply port are provided at a part at which top two drum surfaces face each other in parallel, the dehydrated sludge is thrown while dividing between the internal part of the furnace and the external part of the furnace with either one of the partition plates, and a scraper for removing the sludge that has been dried on the drum surfaces is provided on each of the drum surfaces, and the biomass combustion furnace is provided in a bottom part and is integrated with the drums.

Description

有機汚泥及び有機系廃棄物の処理装置Equipment for treating organic sludge and organic waste
　本発明は排熱を直接利用した乾燥機及びダブルドラムを備えたバイオマス燃焼炉に加え、これらの装置を用いた有機汚泥の処理方法に関するものである。 The present invention relates to a method of treating organic sludge using these devices, in addition to a dryer using a waste heat directly and a biomass combustion furnace equipped with a double drum.
　食品残渣や製紙スラッジ、飲料水メーカなどで出るお茶の出涸らしやコーヒーカスのような有機系廃棄物または下水汚泥等の有機汚泥の処理は一般的に化石燃料を用いて乾燥及び焼却処理されており処理費用がかさむうえ温暖化防止の観点からも好ましい処理方法ではない。 Treatment of organic sludge such as food residue, papermaking sludge, tea waste from a drinking water maker, organic waste such as coffee grounds or sewage sludge is generally dried and incinerated using fossil fuels. The treatment cost is high and it is not a preferable treatment method from the viewpoint of global warming prevention.
　汚泥や廃棄物と燃料の燃焼熱を蒸気発生に用い、蒸気のもつエネルギ－でこれら汚泥や廃棄物を乾燥させて処理することは、ボイラの性能に熱効率を左右されやすく、安定して最適な蒸気圧を維持する制御が不可欠でセンサ－類や付属機器等多くの設備を必要とすることや、乾燥後、焼却炉まで搬送される過程で発生する悪臭対策用に搬送コンベアを覆う加工等、高価な付帯設備を必要とし設置面積を相応に確保する必要があることに加え、排熱を直接乾燥に用いる方式より熱効率が落ち、エネルギー面での経済性でも改善の余地を残す汚泥の処理方法であった。 Using the heat of combustion of sludge and waste and fuel for steam generation and drying and treating these sludge and waste with the energy of steam tends to affect the thermal efficiency of the boiler performance, and is stable and optimal Control to maintain the vapor pressure is essential and requires a lot of equipment such as sensors and accessories, etc., and processing such as covering the transfer conveyor for odor control generated during the process of being transported to the incinerator after drying, etc. In addition to the need for expensive ancillary equipment and the need to ensure a sufficient installation area, the heat efficiency is lower than the method using exhaust heat directly for drying, and a method for treating sludge that leaves room for improvement in energy economy as well. Met.
特公昭６１‐０６１００９Japanese Examined Patent Publication No. 61-061009 特公昭６１‐０５７９６４Japanese Examined Patent Publication No. 61-057964 特開２００４‐２７８９５０（P２００４‐２７８９５０A）JP 2004-278950 (P 2004-278950 A)
　食品残渣や製紙スラッジ、飲料水メーカなどで出るお茶の出涸らしやコーヒーカスのような有機系廃棄物または下水汚泥等の有機汚泥の処理は一般的に化石燃料を用いて乾燥及び焼却処理されており処理費用がかさむうえ温暖化防止の観点からも好ましい処理方法ではない。また、汚泥や廃棄物と燃料の燃焼熱を蒸気発生に用い、蒸気のもつエネルギ－でこれら汚泥や廃棄物を乾燥させて処理することは、ボイラの性能に熱効率を左右されやすく、安定して最適な蒸気圧を維持する制御が不可欠でセンサ－類や付属機器等多くの設備を必要とすることや、乾燥機から排出される蒸気交じりの悪臭対策の為の脱臭システムや乾燥後、焼却炉まで搬送される過程で発生する悪臭対策用に搬送コンベアを覆う加工等、高価な付帯設備を必要とし設置面積を相応に確保する必要があることに加え排熱を直接乾燥に用いる方式より熱効率が落ちエネルギー面での経済性でも改善の余地を残す汚泥の処理方法であった。また、貼着性の有る被処理物を乾燥及び焼却処理する場合には、回転する二個の平行に向き合うドラムを装置内に一組備えていれば完全燃焼させて焼却処理するのに十分な乾燥が行えるものの、被処理物に貼着性が無い場合や貼着性の有る被処理物に貼着性の無い被処理物が混入している場合にはドラム面での乾燥が十分に行えず、燃焼炉において完全燃焼させて焼却処理しにくいという課題を抱えていた。 Treatment of organic sludge such as food residue, papermaking sludge, tea waste from a drinking water maker, organic waste such as coffee grounds or sewage sludge is generally dried and incinerated using fossil fuels. The treatment cost is high and it is not a preferable treatment method from the viewpoint of global warming prevention. In addition, using the heat of combustion of sludge and waste and fuel for steam generation and drying and treating these sludge and waste with the energy of steam tends to affect the thermal efficiency of the boiler's performance and is stable Control to maintain the optimum steam pressure is essential and requires a lot of equipment such as sensors and accessories, and a deodorizing system for preventing odor of steaming discharged from the dryer, drying, and incinerator In addition to the necessity of securing expensive installation facilities, such as processing to cover the transfer conveyor for processing of the offensive odor generated in the process to be transported up to, and the installation area to be secured accordingly, thermal efficiency is higher than using direct exhaust heat for drying. It was a method of sludge treatment that leaves room for improvement in terms of energy efficiency. In addition, in the case of drying and incineration treatment of a tacky object to be treated, it is sufficient for complete burning and incineration treatment provided that one pair of two rotating parallel facing drums is provided in the apparatus. Although drying can be performed, drying can be performed sufficiently on the drum surface when the object to be treated does not have sticking ability or when the object to be treated having sticking ability is mixed with the object to be treated without sticking ability. In addition, it has a problem that it is difficult to burn it completely by burning it in a combustion furnace.
　そこで発明者は、化石燃料を用いることなく汚泥を処理するコンパクトな装置を提供すると共に、有機汚泥や有機系廃棄物である被処理物に貼着性が無い場合や、貼着性の有る被処理物に貼着性の無い被処理物が混入している場合でも、全ての被処理物が燃焼炉の部分に完全燃焼可能にまで乾燥した状態で投下されて焼却処理できる有機汚泥及び有機系廃棄物の処理装置と処理過程における汚泥の乾燥に蒸気を介在させることなく、迅速に処理することにより悪臭の発生も抑制し、かつ燃料の熱エネルギーをより直接的に利用して処理できる効率的な処理装置（方法）を提供する。　 Therefore, the inventor of the present invention provides a compact apparatus for treating sludge without using fossil fuel, and there is no sticking property to organic sludge or an object to be treated which is an organic waste, or a sticking substance having sticking property. Organic sludge and organic sludge that can be incinerated after being dropped to a portion of the combustion furnace so that all the objects to be treated can be completely combusted, even if the objects to be treated that do not have adhesion properties are mixed in with the objects to be treated It is effective to suppress the generation of offensive odor by treating it quickly without using steam in the waste treatment equipment and sludge drying in the treatment process, and to be able to treat by using the thermal energy of fuel more directly. Processing apparatus (method).
　本発明の有機汚泥の処理装置と処理方法は、上記の目的を達成するため、次の手段を採った。すなわち、排熱で加熱し回転する二つのドラムをケ－シング内に備え、該ケ－シング上方から該二つのドラムのドラム面が平行して向き合う部分へ脱水汚泥を落とし込む構造とし、ドラム面で乾燥した汚泥をかきとるスクレパ－を二つ備え、該二つのドラムは回転する軸の内部にドラム内部へ排熱を導入する管が固設され、ドラム外部へ排気を排出する排出口を有し、該ケ－シングはケ－シング内に溜まった蒸気および臭気をケ－シング外部へ排出する排出口をもつ構造とする。 The apparatus and method for treating organic sludge according to the present invention employ the following means in order to achieve the above object. That is, two drums heated and rotated by waste heat are provided in the casing, and dewatered sludge is dropped from above the casing to a portion where the drum surfaces of the two drums face in parallel, Two scrapers are provided to scrape dried sludge, and the two drums have a tube for introducing exhaust heat to the inside of the drum fixed inside the rotating shaft, and have an outlet for discharging the exhaust to the outside of the drum The casing is structured to have an outlet for discharging the vapor and odor accumulated in the casing to the outside of the casing.
　排熱で加熱され回転する二つのドラムをケ－シング内に備え該ケ－シング内部へ排熱を導入する構造に加えケ－シング上部から該二つのドラムのドラム面が平行して向き合う箇所へ脱水汚泥を落とし込む部分にスライドして供給口を開閉する二枚の仕切り板を設け該ケ－シング内部と外部が必ず該仕切り板のいずれかに仕切られた状態で乾燥汚泥を投入する構造としドラム面で乾燥した汚泥をかきとるスクレパ－を二つ備えケ－シング下部から乾燥汚泥を搬送する装置までの間の部分にスライドして供給口を開閉する二枚の仕切り板を設け該ケ－シング内部と外部が必ず該仕切り板のいずれかに仕切られた状態で乾燥汚泥を搬送装置まで送り出す構造を備え、該ケ－シングはケ－シング内の排気および臭気をケ－シング外部へ排出する排出口をもつ構造とする。 Two drums heated and rotated by exhaust heat are provided in the casing to introduce exhaust heat into the inside of the casing In addition to the structure from the top of the casing to the point where the drum surfaces of the two drums face in parallel A drum is provided with two partition plates which slide to a portion into which the dewatered sludge is dropped to open and close the supply port, and the dry sludge is charged in a state where the inside and the outside of the casing are necessarily partitioned into any of the partition plates. The casing is provided with two partition plates provided with two scrapers for scraping the surface-dried sludge and sliding between the lower part of the casing and the device for transporting the dried sludge to open and close the supply port. It is equipped with a structure that sends out the dried sludge to the transport device while the inside and the outside are always divided by any of the partition plates, and the casing discharges the exhaust gas in the casing and the odor from the casing outside. A structure with.
　ダブルドラムを上部に備え、上部から二個のドラム面が平行して向き合う箇所へ脱水汚泥を落とし込む部分にスライドして供給口を開閉する二枚の仕切り板を設け炉の内部と外部が必ず該仕切り板のいずれかに仕切られた状態で脱水汚泥を投入する構造とし、ドラム面で乾燥した汚泥をかきとるスクレパ－を各ドラム面に備え、下部にバイオマス燃焼炉を備えて一体化した。 The inside and the outside of the furnace must be provided with a double drum at the top and two partitions that slide the dewatered sludge down to the part where the two drum faces face in parallel from the top to drop the dewatered sludge to open and close the supply port. Dehydrated sludge was introduced in a state partitioned into any of the partition plates, scrapers scraped off the dried sludge on the drum surface were provided on each drum surface, and a biomass combustion furnace was provided on the lower part to integrate them.
　回転する二個の平行に向き合うドラムを上部に複数組備え最上部に位置する組の二個のドラム面が平行して向き合う箇所へ上部から食品残渣や製紙スラッジ、飲料水メーカなどで出るお茶の出涸らしやコーヒーカスのような非貼着性の有機系廃棄物を落とし込む部分にスライドして供給口を開閉する二枚の仕切り板を設け炉の内部と外部が必ず該仕切り板のいずれかに仕切られた状態で被処理物を投入する構造としドラム面で乾燥した被乾燥物をかきとるスクレパーを各ドラム面にそれぞれ設け下部にバイオマス燃焼炉を備えて一体化した構造を特徴とするバイオマス燃焼炉。 Two sets of rotating parallel parallel drums at the top and two sets of drums located at the top to the place where the two drum faces of the pair are facing in parallel There are two partition plates that slide in the area where the non-sticking organic waste such as outspouts and coffee grounds are dropped to open and close the supply port. A biomass combustion furnace characterized by having a structure in which objects to be treated are charged in a fixed state, and a scraper for scraping the dried material on the drum surface is provided on each drum surface respectively and provided with a biomass combustion furnace at the bottom .
　排熱で加熱するダブルドラム乾燥機のドラム面に脱水汚泥を貼着し乾燥させ、該乾燥機内部に備え付けられたスクレパ－でかきとられた乾燥汚泥をバイオマス燃焼炉へ送り込み、バイオマス燃料を補助燃料としながら該乾燥汚泥を焼却し、これらの排熱を該乾燥機の熱源として利用する。 Dehydrated sludge is adhered to the drum surface of a double drum dryer heated by exhaust heat and dried, and the scraper scraped by the scraper installed inside the dryer is sent to a biomass combustion furnace to support biomass fuel The dried sludge is incinerated while being used as fuel, and the waste heat is used as a heat source of the dryer.
　排熱を直接利用して汚泥の乾燥をすることで、燃料を効率よく使って有機汚泥の処理ができる。 By drying sludge using exhaust heat directly, fuel can be efficiently used to treat organic sludge.
　蒸気を介在させないので、最適に蒸気圧を制御する難しさがなく、簡便にシステムを運用できる。 Since no steam is intervened, the system can be easily operated without difficulty in controlling the vapor pressure optimally.
　センサーや付属機器の数が少なくて済み、コンパクトで経済的。 The number of sensors and accessories required is small, compact and economical.
　一体型については、燃焼炉内で乾燥と焼却の両方の処理を行うことで、熱損失を限りなく減らして有機汚泥の乾燥、焼却処理をすることができるので排熱を分散することなく効率的に回収できる。また、ダブルドラムを複数組備えることによって有機汚泥や有機系廃棄物である被処理物に貼着性が無い場合や、貼着性の有る被処理物に貼着性の無い被処理物が混入している場合でも、全ての被処理物が燃焼炉の部分に完全燃焼可能にまで乾燥した状態で落下し、焼却処理できる。 As for integral type, by performing both drying and incineration treatment in the combustion furnace, heat loss can be reduced as much as possible, and organic sludge can be dried and incinerated, so it is efficient without dispersing waste heat. Can be collected. In addition, by providing a plurality of sets of double drums, there is no sticking property to the organic sludge or the object to be treated which is an organic waste, or the object to be treated having no sticking property is mixed in the object to be treated having sticking property. Even if this is done, all the objects to be treated can drop to a portion of the incinerator so as to be completely combustible and can be incinerated.
　一体型を用いて脱水汚泥を乾燥、焼却処理する場合、摂氏９００度近辺の高温で一気に汚泥を乾燥、焼却処理する為、蒸気ドラムを用いて脱水汚泥を乾燥する場合と違い、乾燥時や乾燥後の搬送という処理過程における腐敗の進行による悪臭の発生がほとんどなく、乾燥機から排気される蒸気交じりの悪臭対策の為の高価な脱臭システムを別途設置する必要がない。 When drying and incinerating the dewatered sludge using the integrated type, the sludge is rapidly dried and incinerated at a high temperature around 900 ° C., unlike when drying the dewatered sludge using a steam drum, drying and drying There is almost no generation of an offensive odor due to the progress of rot in the subsequent transport process, and it is not necessary to separately install an expensive deodorizing system for the offensive odor of steaming discharged from the dryer.
　一般的なバイオマス燃焼炉の炉床面は平面状または円形のものであれば平面状の炉床面をいくらか持ち、同心円上の外周部に向かい丘陵状に沈み込む形状をしている。これは燃焼灰を灰貯留部へスムーズに落とすことを意識して設計されているものであるが、バイオマス燃焼炉の実際は燃焼が良好に行われ、下水汚泥で頻繁に問題となるクリンカ（高温によりガラス質化した残留物）が発生しなければ燃焼灰はほとんど中空へ巻き上げられ排ガスを誘引するファンによりサイクロン集塵機に送り込まれるか巻き上げられた後に下部に落下し集積する。従ってこれらの炉床面を持つ燃焼炉においては燃焼速度をいくらか超える燃料なり被処理物が炉床面に送られると炉床面から溢れ出し燃焼処理されることなく灰貯留部に落下する。燃焼空気を送り込む空気孔を多数備え中央部に向かい沈み込む炉床面と燃焼空気を送り込む空気孔を多数もつ旋回、攪拌翼の組み合わせによりクリンカの発生を抑制すると共に処理されず灰貯留部に落下する燃料や被処理物の発生を防ぐことができる。 The hearth surface of a general biomass combustion furnace has a flat or circular hearth surface with some flat hearth surface, and is shaped so as to sink toward the outer periphery on concentric circles in a hilly manner. Although this is designed with the intention of smoothly dropping the combustion ash into the ash storage section, in the biomass combustion furnace, the combustion is performed well, and the clinker frequently causes problems with sewage sludge (high temperature If no vitrified residue is generated, the combustion ash is mostly taken up hollow and sent to a cyclone dust collector by a fan that attracts the exhaust gas, or dropped and accumulated in the lower part after being taken up. Therefore, in the combustion furnace having these heart floor surfaces, when the fuel to be treated which is somewhat higher than the combustion rate is transferred to the heart floor surface, it overflows from the heart floor surface and falls into the ash storage portion without being subjected to combustion processing. The combination of a large number of air holes for sending combustion air toward the central part and a swirl with a hearth surface sinking toward the center and a large number of air holes for sending combustion air, and the combination of stirring blades suppress clinker generation and is not treated and falls into the ash storage part It is possible to prevent the generation of fuel and objects to be treated.
請求項１記載の乾燥機の概略図である。It is the schematic of the dryer of Claim 1. 請求項２記載の乾燥機の概略図（実施例）である。It is the schematic (Example) of the dryer of Claim 2. 請求項４記載の処理装置の正面概略図（実施例）である。It is a front schematic diagram (Example) of the processing apparatus of Claim 4. 請求項４記載の処理装置の横面概略図（実施例）である。It is the cross-sectional schematic of the processing apparatus of Claim 4, (Example). 請求項５記載の処理装置の概略図（実施例）である。It is the schematic (Example) of the processing apparatus of Claim 5.
　請求項１記載の乾燥機以外の装置に用いるドラムの形態は特に限定はしないが、ドラム面を回転軸からハブ状に架橋して固設され鏡面を持たずドラム面を排熱で内外両面から効率的に加熱する形態、またはドラム内に断熱材を充填して効率的にドラム面を熱する形態が望ましい。 Although the form of the drum used for apparatuses other than the dryer according to claim 1 is not particularly limited, the drum surface is bridged and fixed in a hub shape from the rotating shaft and is fixed without having a mirror surface. It is desirable that the heating be performed efficiently or that the drum be filled with a heat insulating material to efficiently heat the drum surface.
　一体型の下部バイオマス燃焼炉ついては連続してバイオマス燃料を供給し連続運転のできるものであれば特にその形態を限定するものではないが図３～図５及び請求項６に記載した特徴を有する旋回、攪拌翼と炉床面を備えた形態が望ましい。 The integrated lower biomass burning furnace is not particularly limited as long as it can continuously supply biomass fuel and can operate continuously, but the swirl having the features described in FIGS. 3 to 5 and 6 Preferably, the configuration has a stirring blade and a hearth surface.
　食品残渣や製紙スラッジ、飲料水メーカなどで出るお茶の出涸らしやコーヒーカスのような有機系廃棄物、下水汚泥等の有機汚泥をバイオマス燃料により乾燥及び焼却処理する。 Dry and incinerate organic sludge such as food residue, papermaking sludge, organic waste such as tea leaves and coffee wastes from drinking water manufacturers, sewage sludge and so on with biomass fuel.
　１　　旋回、攪拌翼
　２　　炉床面
　３　　燃焼空気供給口
　４　　燃焼空気供給口 1 swirling, stirring blade 2 hearth floor 3 combustion air supply port 4 combustion air supply port

Claims (6)

  1. 　排熱で加熱し回転する二つのドラムをケ－シング内に備え、該ケ－シング上方から該二つのドラムのドラム面が平行して向き合う部分へ脱水汚泥を落とし込む構造とし、ドラム面で乾燥した汚泥をかきとるスクレパ－を二つ備え、該二つのドラムは回転する軸の内部にドラム内部へ排熱を導入する管が固設され、ドラム外部へ排気を排出する排出口を有し、該ケ－シングはケ－シング内に溜まった蒸気および臭気をケ－シング外部へ排出する排出口をもつ構造を特徴とする有機汚泥の乾燥機。 Two drums that heat and rotate with exhaust heat are provided in the casing, and dewatered sludge is dropped from above the casing to the part where the drum surfaces of the two drums face in parallel, and dried on the drum surfaces The two drums are provided with two scrapers for scraping sludge, and the two drums have pipes fixed for introducing exhaust heat to the inside of the drum inside the rotating shaft, and have outlets for discharging exhaust to the outside of the drum, The casing is an organic sludge dryer characterized by its structure having an outlet for discharging the vapor and odor accumulated in the casing to the outside of the casing.
  2. 　排熱で加熱され回転する二つのドラムをケ－シング内に備え該ケ－シング内部へ排熱を導入する構造に加えケ－シング上部から該二つのドラムのドラム面が平行して向き合う箇所へ脱水汚泥を落とし込む部分にスライドして供給口を開閉する二枚の仕切り板を設け該ケ－シング内部と外部が必ず該仕切り板のいずれかに仕切られた状態で乾燥汚泥を投入する構造としドラム面で乾燥した汚泥をかきとるスクレパ－を二つ備えケ－シング下部から乾燥汚泥を搬送する装置までの間の部分にスライドして供給口を開閉する二枚の仕切り板を設け該ケ－シング内部と外部が必ず該仕切り板のいずれかに仕切られた状態で乾燥汚泥を搬送装置まで送り出す構造を備え、該ケ－シングはケ－シング内の排気および臭気をケ－シング外部へ排出する排出口をもつ構造を特徴とする有機汚泥の乾燥機。　 Two drums heated and rotated by exhaust heat are provided in the casing to introduce exhaust heat into the inside of the casing In addition to the structure from the top of the casing to the point where the drum surfaces of the two drums face in parallel A drum is provided with two partition plates which slide to a portion into which the dewatered sludge is dropped to open and close the supply port, and the dry sludge is charged in a state where the inside and the outside of the casing are necessarily partitioned into any of the partition plates. The casing is provided with two partition plates provided with two scrapers for scraping the surface-dried sludge and sliding between the lower part of the casing and the device for transporting the dried sludge to open and close the supply port. It is equipped with a structure that sends out the dried sludge to the transport device while the inside and the outside are always divided by any of the partition plates, and the casing discharges the exhaust gas in the casing and the odor from the casing outside. Dryer organic sludge, wherein the structure with.
  3. 　排熱で加熱するダブルドラム乾燥機のドラム面に脱水汚泥を貼着し乾燥させ、該乾燥機内部に備え付けられたスクレパ－でかきとられた乾燥汚泥をバイオマス燃焼炉へ送り込み、バイオマス燃料を補助燃料としながら該乾燥汚泥を焼却し、これらの排熱を該乾燥機の熱源として利用することを特徴とする有機汚泥の処理方法。 Dehydrated sludge is adhered to the drum surface of a double drum dryer heated by exhaust heat and dried, and the scraper scraped by the scraper installed inside the dryer is sent to a biomass combustion furnace to support biomass fuel A method of treating organic sludge, which comprises burning the dried sludge while using it as a fuel and using the waste heat of the sludge as a heat source of the dryer.
  4. 　ダブルドラムを上部に備え、上部から二個のドラム面が平行して向き合う箇所へ脱水汚泥を落とし込む部分にスライドして供給口を開閉する二枚の仕切り板を設け炉の内部と外部が必ず該仕切り板のいずれかに仕切られた状態で脱水汚泥を投入する構造とし、ドラム面で乾燥した汚泥をかきとるスクレパ－をドラム各面に備え、下部にバイオマス燃焼炉を備えて一体化した構造を特徴とするバイオマス燃焼炉。 The inside and the outside of the furnace must be provided with a double drum at the top and two partitions that slide the dewatered sludge down to the part where the two drum faces face in parallel from the top to drop the dewatered sludge to open and close the supply port. Dehydrated sludge is charged in a state divided into any of the partition plates, scrapers scraped off the dried sludge on the drum surface are provided on each surface of the drum, and a biomass combustion furnace is provided on the lower part to form an integrated structure. Biomass combustion furnace characterized by
  5. 　回転する二個の平行に向き合うドラムを上部に複数組備え最上部に位置する組の二個のドラム面が平行して向き合う箇所へ上部から食品残渣や製紙スラッジ、飲料水メーカなどで出るお茶の出涸らしやコーヒーカスのような非貼着性の有機系廃棄物を落とし込む部分にスライドして供給口を開閉する二枚の仕切り板を設け炉の内部と外部が必ず該仕切り板のいずれかに仕切られた状態で被処理物を投入する構造としドラム面で乾燥した被乾燥物をかきとるスクレパーを各ドラム面にそれぞれ設け下部にバイオマス燃焼炉を備えて一体化した構造を特徴とするバイオマス燃焼炉。 Two sets of rotating parallel parallel drums at the top and two sets of drums located at the top to the place where the two drum faces of the pair are facing in parallel There are two partition plates that slide in the area where the non-sticking organic waste such as outspouts and coffee grounds are dropped to open and close the supply port. A biomass combustion furnace characterized by having a structure in which objects to be treated are charged in a fixed state, and a scraper for scraping the dried material on the drum surface is provided on each drum surface respectively and provided with a biomass combustion furnace at the bottom .
  6. 　中央部に向かい沈み込む形態を持ち上部から供給されるバイオマス燃料（主に木質系バイオマス燃料）及び被処理物（主に下水汚泥や有機系廃棄物）を炉床面内部に滞留させる形態を持ち、燃焼空気を噴出させる空気孔を多数備えた炉床面に加え、炉床面の中央部に燃焼空気を炉内及び炉床面に供給する空気孔が多数開けられモーターにより旋回して炉床面上に滞留する燃料及び被処理物を攪拌する攪拌翼を備えたことを特徴とするバイオマス燃焼炉。 It has a form that sinks to the central part and has a form to retain biomass fuel (mainly wood-based biomass fuel) and objects to be treated (mainly sewage sludge and organic waste) supplied from the upper part inside the hearth surface. In addition to the hearth surface provided with a large number of air holes for injecting combustion air, a large number of air holes for supplying combustion air to the furnace and the hearth surface are opened at the center of the hearth surface, and the motor is swirled by the motor. What is claimed is: 1. A biomass burning furnace comprising: a stirring blade for stirring fuel and objects to be treated staying on a surface.
PCT/JP2013/060601 2012-04-18 2013-04-08 Organic sludge and organic waste disposal device WO2013157427A1 (en)

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