WO2007096966A1 - Production facility for steam generation fuel, steam generation facility and method of converting waste to steam generation fuel - Google Patents

Production facility for steam generation fuel, steam generation facility and method of converting waste to steam generation fuel Download PDF

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Publication number
WO2007096966A1
WO2007096966A1 PCT/JP2006/303266 JP2006303266W WO2007096966A1 WO 2007096966 A1 WO2007096966 A1 WO 2007096966A1 JP 2006303266 W JP2006303266 W JP 2006303266W WO 2007096966 A1 WO2007096966 A1 WO 2007096966A1
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WO
WIPO (PCT)
Prior art keywords
fuel
facility
steam
generating
steam generation
Prior art date
Application number
PCT/JP2006/303266
Other languages
French (fr)
Japanese (ja)
Inventor
Yutaka Yasuda
Hiroyuki Takano
Yuji Shichida
Original Assignee
Taiheiyo Cement Corporation
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 Taiheiyo Cement Corporation filed Critical Taiheiyo Cement Corporation
Priority to PCT/JP2006/303266 priority Critical patent/WO2007096966A1/en
Priority to JP2008501524A priority patent/JPWO2007096966A1/en
Publication of WO2007096966A1 publication Critical patent/WO2007096966A1/en

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
    • C10L5/00—Solid fuels
    • C10L5/40—Solid fuels essentially based on materials of non-mineral origin
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03B—SEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS
    • B03B9/00—General arrangement of separating plant, e.g. flow sheets
    • B03B9/06—General arrangement of separating plant, e.g. flow sheets specially adapted for refuse
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
    • B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
    • B09B3/00—Destroying solid waste or transforming solid waste into something useful or harmless
    • C—CHEMISTRY; METALLURGY
    • C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
    • C12M—APPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; APPARATUS FOR CULTURING MICROORGANISMS FOR PRODUCING BIOMASS, FOR GROWING CELLS OR FOR OBTAINING FERMENTATION OR METABOLIC PRODUCTS, i.e. BIOREACTORS OR FERMENTERS
    • C12M23/00—Constructional details, e.g. recesses, hinges
    • C12M23/02—Form or structure of the vessel
    • C12M23/18—Open ponds; Greenhouse type or underground installations
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22—STEAM GENERATION
    • F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
    • F22B1/00—Methods of steam generation characterised by form of heating method
    • F22B1/02—Methods of steam generation characterised by form of heating method by exploitation of the heat content of hot heat carriers
    • F22B1/18—Methods of steam generation characterised by form of heating method by exploitation of the heat content of hot heat carriers the heat carrier being a hot gas, e.g. waste gas such as exhaust gas of internal-combustion engines
    • F22B1/1892—Systems therefor not provided for in F22B1/1807 - F22B1/1861
    • 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
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E50/00—Technologies for the production of fuel of non-fossil origin
    • Y02E50/30—Fuel from waste, e.g. synthetic alcohol or diesel

Definitions

  • the present invention relates to a steam generating fuel manufacturing facility for effectively treating waste such as Tokyo garbage as a steam generating fuel, a steam generating facility provided with this facility, and waste such as Tokyo garbage.
  • the present invention relates to a method for converting steam into fuel for steam generation.
  • Patent Document 1 also describes that organic waste is fermented with a cement kiln or used as part of fuel for cement production.
  • Patent Document 1 it has been difficult to stably compost organic waste even if a cement kiln is simply used as a fermentation treatment apparatus. Attempts have also been made to use fermented products as fuel for cement production, but it has proven difficult to efficiently obtain high-quality fermented products.
  • Patent Documents 2 and 3 the applicant of the present invention used a rotary kiln or a rotary dryer to accommodate cement manufacturing equipment such as a cement kiln effectively in the treatment of waste.
  • the present applicant has proposed a technique of using the fermented waste as a fuel for power generation.
  • a power plant for carrying out the method described in Patent Document 4 is provided with a power generation fuel production facility 400 attached to a power generation facility 300.
  • This power generation facility 300 is a coal-fired thermal power generation facility, roughly divided into a coal storage tank 301, a coal crushing mill 303, a boiler 305, and a boiler 304 having a pipe 307 through which water passes. And a turbine 308 that is rotated by the power of steam, a power generation device 309 that converts the rotation of the turbine 308 into electric power, a condenser 306 that converts the steam from the turbine 308 into water, and reuses it. Is done. Further, the power generation facility 300 includes a heat exchanger 310, an electric dust collector 312, a flue gas desulfurization device 313, and a chimney 314 in order to process the exhaust gas from the boiler 304.
  • the power generation fuel production facility 400 performs fermentation treatment (composting) of waste, it is roughly classified into a fermentation treatment device 402, storage and fermentation treatment tanks 404 and 406, and a fermentation treatment product.
  • the apparatus includes a foreign matter separation / removal device 408 to 418.
  • the fermentation treatment apparatus 402 At the inlet of the fermentation treatment apparatus 402, there are provided inlets 420, 422, 424 and a fermentation gas outlet 426 for feeding the waste garbage, sewage sludge, and the fermented product for return.
  • the fermentation gas outlet 426 is provided with a ventilation wind turbine 419 as an exhaust means.
  • a fermented product outlet 428 and an air inlet 427 are provided at the outlet of the fermentation treatment apparatus 402.
  • the air inlet 427 is provided with an air inlet wind turbine 429 as an air supply means.
  • Storage and fermentation treatment tanks 404 and 406 are provided for further fermentation of waste in the fermentation treatment apparatus 402 and for temporarily storing the fermentation treatment product, and are quantitatively drawn to the bottom.
  • the fermented processed product from the quantitative drawer can be supplied to a deviation between the supply line 430 to the power generation facility 300 and the return line 432 to the fermenter 402.
  • Equipments 408 to 418 provided in the subsequent stage of the fermentation treatment apparatus 402 are for removing foreign substances from the fermented product, and include a magnetic separator 408 provided with a benolet conveyor 409 and a primary crusher 410. It consists of a Trommel 412, a high Gaussian sorter 414, an aluminum sorter 416, and a secondary lithotripter 418.
  • the city trash is input from the city trash input 420, and the sewage sludge is input from the city trash in addition to the city trash from the 422 sewage sludge input 422. Further, a part of the fermented product is returned from the storage / fermentation processing tank 406 to the fermenting device 402 through the line 432. This is for the purpose of stabilizing the cells in the fermentation treatment apparatus 402 and stabilizing the quality of the fermentation treatment product.
  • the waste moves in the fermentation treatment apparatus 402, and after 3 days, the fermentation treatment product is taken out from the outlet 428.
  • fermentation proceeds by a mechanism such as aerobic degradation of easily degraded components by fermenting bacteria that inhabit the natural world at the entrance.
  • the fermentation gas in the fermentation processing apparatus 402 is drawn out from the fermentation gas outlet 426 by the ventilation wind turbine 419 and introduced into the boiler 304 as primary air to decompose ammonia and the like generated in the fermentation process. Deodorize exhaust gas.
  • air is supplied from the air blowing port 427 by the air blowing windmill 429, the aerobic condition in the fermentation treatment apparatus 402 is maintained, and fermentation by aerobic bacteria is maintained.
  • the fermented processed product obtained as described above is removed by using a magnetic separator 408, a high Gaussian sorter 414, and an aluminum sorter 416 to remove iron, stainless steel, and aluminum, respectively. . Further, the fermented product is adjusted to an appropriate particle size by the primary crusher 410 and the secondary crusher 418.
  • the fermented processed product is sent as a fuel for power generation by the packet elevators 442 and 443 to the storage tanks and fermenting processing tanks 404 and 406, and is circulated by a circulation system.
  • benoreto conveyors 444 and 446 are installed, and some of the fermented products taken out of these are transported vertically by the packet elevator 448 for storage and fermentation again.
  • Tanks 404 and 406. Thereby, an aerobic state is maintained.
  • the fermented product is supplied as a fuel for power generation from the line 430 to the power generation facility 300 via the belt conveyor 450 or returned to the fermenting device 402 via a part of the line 432.
  • the power generation facility 300 generates power in parallel with the operation of the power generation fuel production facility 400.
  • the coal stored in the coal storage tank 301 is supplied to the coal pulverization mill 303 via the belt conveyor 302, and is pulverized by the coal pulverization mill 303. Then, the coal is blown into the boiler 304 and burned. Water flowing in the Neuve 307 inserted through the wall surface of the boiler 304 is heated to generate steam, and the turbine 308 is rotated by the generated steam, and electric power is generated by the power generator 309 directly connected to the turbine 308.
  • Patent Document 1 Japanese Patent Application Laid-Open No. 52-97270
  • Patent Document 2 Japanese Patent Application Laid-Open No. 2001-191059
  • Patent Document 3 Japanese Patent Laid-Open No. 2001-191060
  • Patent Document 4 US Patent Publication No. 2003Z0051396
  • the power generation facility 300 with the above-mentioned power generation fuel production facility 400 is equipped with a yearly inspection of the refractories of the combustion section of the boiler 304, maintenance, inspection of valves and valves, maintenance, inspection of piping and welds, and maintenance. It is normal to stop operation for 2 to 3 weeks at a rate of 2 to 3 times. However, even when the power generation facility 300 is out of service, the power generation fuel production facility 400 still accepts waste and conducts fermentation treatment, so that the power generation facility 300 cannot use it as fuel. Until operation is resumed, it is necessary to store temporarily in the storage and fermentation tanks 404 and 406 of the power generation fuel production facility 400.
  • the fuel for power generation obtained by fermenting the waste can be used not only for the power generation facility 300 but also for industrial steam generating boilers, district heating and cooling boilers, etc.
  • inspection and maintenance of the refractory in the boiler combustion section requires the same period of suspension as above, and the same problem occurs when handling fermented products during the period of suspension.
  • the present invention has been made in view of the problems in the steam generating fuel manufacturing equipment including the above-described conventional power generating fuel manufacturing equipment, and it is possible to generate steam without causing an increase in equipment cost.
  • the purpose is to provide a steam generating fuel manufacturing facility that can easily handle the fermented products processed by the steam generating fuel manufacturing facility during the suspension period of the steam generating facility to which the fuel generating facility is attached.
  • the present invention is a fuel generating facility for generating steam, which is an aerobic fermentation treatment device for fermenting waste, and a storage for storing a fermented product fermented by the aerobic fermentation treatment device. And a warehouse.
  • the steam generating fuel is used in power plants, industrial steam generating boilers, district heating and cooling boilers and the like.
  • a rotary kiln type, scoop type, auger type, paddle type device, etc. used for composting organic waste can be used.
  • a removed rotary kiln or rotary dryer can also be used.
  • a sealed building such as a tent house can be used, and materials such as an outer wall and a ceiling are not limited.
  • Organic sludge Sewage sludge, human waste sludge (septic tank sludge, agricultural settlement wastewater sludge), food industry wastewater sludge, coconut bottom sludge, etc. are included in this category.
  • Forest residue, plant residue Pulp waste liquor, bark, sawdust, chip dust, pruned branches, bagasse, rice husk, straw, etc. are included in this category.
  • Household waste This category includes food (raw waste), city-collectable combustible waste, and business-related waste.
  • Livestock waste Livestock manure, bird droppings, etc. are included in this category.
  • Marine waste Fish iliac, fried, dead fish, etc. are included in this category.
  • the waste concept also includes a mixture of two or more of those listed above.
  • the fermented processed product fermented by the aerobic fermenter can be stored in the storage warehouse, the steam generating fuel manufactured by the steam generating fuel manufacturing facility is used. Even if the boilers that are to be operated are suspended for maintenance, fermented products that have been fermented from the received waste can be used as fuel for steam generation after restarting the boiler operation, resulting in an increase in equipment costs. It is possible to reliably process the accepted waste without inviting it.
  • An anaerobic fermentation accompanied by generation of methane, hydrogen sulfide, and the like of the fermented product can be suppressed in a storage warehouse of the fuel production facility for generating steam.
  • the maximum deposition height of the fermented processed product in the storage warehouse is 2 m or more and 5 m or less.
  • the volume of the fermented processed product stored in the storage warehouse with respect to the total volume of the storage can be 10% or more and 40% or less.
  • the normal compost facility has a venting facility as a secondary fermentation facility, but the fuel production facility for steam generation does not require secondary fermentation, so the equipment cost was reduced by eliminating the air blowing facility. In this case, anaerobic fermentation with the generation of flammable gas such as methane will occur and the risk of explosion will increase, so it is necessary to suppress it.
  • the maximum deposition height of the fermented product By setting the maximum deposition height of the fermented product to 5 m or less, anaerobic fermentation inside the sedimentary layer can be more effectively suppressed.
  • a ventilation device for air in the warehouse of the storage warehouse for removing odors and a small amount of flammable gas such as methane generated during storage from the fermented processed product and filling the warehouse, And a deodorizer for treating the ventilation air.
  • ventilation equipment if the air in the warehouse, such as a suction fan, can be discharged to the outside, it is preferable to ventilate the entire volume of the storage warehouse at least three times per hour.
  • the deodorizer system various deodorizers used in composting facilities such as plasma system, ozone system, adsorption system, chemical cleaning system, combustion system, biological deodorization system, etc. can be applied.
  • the storage warehouse can be provided with a detector for monitoring the concentration of combustible gas in the warehouse.
  • the usage amount of the steam generation facility for 1 day or more and 30 days or less is stored. Preferably it is possible. This makes it possible to temporarily store all the fermented products that could not be processed within the downtime for equipment maintenance.
  • the present invention is a steam generating facility, characterized in that the fuel generating facility for generating steam is additionally provided.
  • the fuel generating facility for generating steam is additionally provided.
  • the steam generation facility is equipped with the fuel generation facility for steam generation, even if the boiler of the steam generation facility is shut down due to maintenance, etc., the fermented products obtained by fermenting the received waste are stored in the storage warehouse. After the boiler is restarted, the fermented products stored in the storage warehouse can be used as fuel for steam generation. Therefore, the received waste can be reliably processed.
  • the steam generation fuel production facility and the storage warehouse do not have to be on the same site as the steam generation facility.
  • the present invention is a method for producing fuel for steam generation of waste, wherein the waste is fermented in an aerobic fermentation apparatus, the fermented fermented product is stored in a storage warehouse, The stored product is carried into a steam generation facility, and the fermented product carried into the steam generation facility is used as a fuel for steam generation.
  • the fermented product that has been fermented with an aerobic fermentation apparatus is stored in a storage warehouse, and thus manufactured by the steam generating fuel manufacturing facility. Even when boilers that use steam generating fuel stop operating for maintenance, fermented products that have been fermented from the received waste can be used as fuel for steam generation after restarting boiler operation. , Can handle the received waste reliably
  • the waste is preferably subjected to an aerobic fermentation treatment for 12 hours or more in the aerobic fermentation apparatus. Further, anaerobic fermentation of the fermented processed product can be suppressed in the storage warehouse, and the volume ratio of the fermented processed product stored in the storage warehouse to the total volume of the stored warehouse is 10% or more and 40% or less. And the accumulation height of the fermented processed product in the storage warehouse can be 2 m or more and 5 m or less.
  • the steam generating fuel production facility is installed during the suspension period of the steam generating facility to which the steam generating fuel production facility is attached without causing an increase in equipment cost. It becomes possible to easily handle the fermented product that has been processed by the equipment.
  • FIG. 1 shows a power plant provided with a power generation fuel production facility 200 as an example of a steam generating fuel production facility according to the present invention.
  • the power generation facility 100 of this power plant includes a coal storage tank 101, coal A crushing mill 103, a boiler 105 having a pan 105 and a pipe 107 for passing water through the wall surface, a turbine 108 rotated by steam, and a turbine 108 that converts the rotation of the turbine 108 into electric power.
  • An electrical device 109, a condenser 106 for converting steam from the turbine 108 into water, and a heat exchanger 110, an electric dust collector 112 as an exhaust gas treatment facility from the boiler 104, an exhaust A smoke desulfurization unit 113 and a chimney 114 are provided.
  • the power generation fuel production facility 200 performs fermentation treatment of waste, a fermentation treatment apparatus 202, a storage and fermentation treatment tank 204, and a device for separating and removing foreign substances contained in the fermentation treatment product. 208 to 218, and the tent house 10 as a storage warehouse for storing fermented products when the power generation facility 100 is out of operation.
  • This tent house 10 is a characteristic part of the present invention.
  • the tent house 10 processes a large number of bone members 11, a covering member 12 supported by the bone members 11, an entrance / exit 13 such as a vehicle, and the ventilation air of the tent house 10. It consists of a plasma type deodorizer 14 etc.
  • the tent house 10 can suppress the anaerobic fermentation of the fermented processed product in the storage and fermentation processing tank 204, for example, can store a fermented processed product of about 1200 t (3400 m 3 ), The actual storage area is 1100m 2 , the total volume is 15000m 3 , and the total volume of the tent house 10 for the fermented processed products to be stored is about 20%.
  • the municipal waste, sewage sludge, and the returned fermented processed product are introduced into the inlet of the fermentation processing device 202 in FIG.
  • the inlets 220, 222, 224, and the fermentation gas outlet 226 are provided, and the wind turbine 219 for ventilation is provided at the fermentation gas outlet 226.
  • a fermented product outlet 228 and an air inlet 227 and a force S are provided at the outlet of the fermentation treatment apparatus 202, and an air inlet for introducing air from the heat exchange 110 force is provided in the air inlet 227.
  • a windmill 229 is provided. It should be noted that it is not necessary to input sewage sludge and the returned fermented processed product, but it is only necessary to input only garbage in the fermentation processing apparatus 202.
  • the storage / fermentation processing tank 204 is provided to further carry out the fermentation in the fermentation processing apparatus 202 and temporarily store the fermented processed product. Fermented processed products from the drawer can be supplied to the supply line 230 to the power generation facility 100, the return line 232 to the fermentation processing apparatus 202, and the storage line 250 to the tent house 10!
  • the devices 208 to 218 provided in the subsequent stage of the fermentation treatment apparatus 202 are for removing foreign substances from the fermentation treatment product, and include a magnetic separator 208 attached to the belt conveyor 209, and a primary crusher 210. It consists of a trommel 212, a high Gaussian sorter 214, an aluminum sorter 216, and a secondary lithotripter 218.
  • the municipal waste is input from the municipal waste input 220, and the sewage sludge is input from the municipal waste in addition to the municipal waste. Further, a part of the fermented product is returned from the storage / fermentation processing tank 204 to the fermenting processing device 202 through the line 232. This is for the purpose of stabilizing the cells in the fermentation treatment apparatus 202 and stabilizing the quality of the fermentation treatment product.
  • the waste moves in the fermentation treatment apparatus 202, and after 3 days, the fermentation treatment product is taken out from the fermentation product outlet 228.
  • fermentation proceeds by a mechanism such as aerobic degradation of easily degradable components on the inlet side by fermenting bacteria that inhabit the natural world.
  • the fermentation gas in the fermentation processing apparatus 202 is drawn out from the fermentation wind turbine 219 and introduced into the boiler 104 to decompose ammonia and the like generated in the fermentation process, Deodorize.
  • air from the heat exchanger 110 is supplied from the air blowing port 227 by the air blowing windmill 229, the aerobic condition in the fermentation treatment apparatus 202 is maintained, and fermentation by aerobic bacteria is maintained.
  • the fermented processed product obtained as described above is removed by using a magnetic separator 208, a high Gaussian separator 214, and an aluminum separator 216 to remove iron, stainless steel, and aluminum, respectively. . Further, the fermented product is adjusted to an appropriate particle size by the primary crusher 210 and the secondary crusher 218.
  • the fermentation processed product is sent to the storage and fermentation processing tank 204 by the packet elevators 242 and 243 as a fuel for power generation, and is circulated by a circulation system. That is, a belt conveyor 244 is provided under the tank 204, and a part of the fermentation processed product taken out of the belt conveyor 244 is vertically transported by the packet elevator 248 and is circulated again to the storage and fermentation processing tank 204. It is circled. Thereby, an aerobic state is maintained.
  • the fermented processed product is supplied as a fuel for power generation from the supply line 230 to the power generation facility 100 via the belt conveyor 246, or returned to the fermentation processing apparatus 202 via a part return line 232.
  • the power generation facility 100 generates power in parallel with the operation of the power generation fuel production facility 200.
  • Coal is conveyed from the coal storage tank 101 to the coal pulverization mill 103 via the belt conveyor 102, pulverized by the coal pulverization mill 103 into pulverized coal, and then blown into the boiler 104 from the Pana 105 and burned.
  • the combustion heat of the pulverized coal heats the water flowing in the pipe 107 that passes through the wall surface of the boiler 104 to generate steam, and the generated steam rotates the turbine 108 to generate electric power at the power generator 109.
  • Exhaust gas from the boiler 104 is used to heat the primary air of the boiler 104 using the heat exchanger 110, then dust is removed by the electrostatic precipitator 112, SOx is removed by the flue gas desulfurizer 113, and the air is discharged from the chimney 114. To release.
  • the fermented product fermented in the fermenting apparatus 202 and the storage / fermentation processing tank 204 is passed through the belt conveyor 246 and the supply line 230. Therefore, the fermented processed product is transported to the tent house 10 via the storage line 250 as well as the belt conveyor and belt conveyor 246 at the front stage of the packet elevator 243 because they cannot be used as fuel for power generation. To do. Further, the fermented product can be taken out from the belt conveyor, the belt conveyor 246, etc. in the previous stage of the bucket elevator 243, loaded on a dedicated transport vehicle, and transported to the tent house 10.
  • the fermented processed product is loaded into the tent house 10 at a height of about 2 m.
  • Tenthouse 10 ventilates the entire volume at a rate of 3 times per hour. Ventilation air is treated with a plasma deodorizer 14.
  • the fermented product in the tent house 10 is supplied from the tent house 10 to the power generation facility 100 as a fuel for power generation.
  • a route for supplying power directly from the tent house 10 to the power generation facility 100 may be provided, or the supply line 230 shown in FIG.
  • the steam generating fuel production facility according to the present invention is a stone Although the case where it is applied to a coal-fired thermal power generation facility has been described as an example, it can also be applied to a heavy oil-fired thermal power generation facility, and the cycle of a heavy oil-fired thermal power generation facility is similar to that of a coal-fired thermal power generation facility. Therefore, the power generation fuel production facility according to the present invention can be used effectively.
  • the steam generating fuel production facility that is useful in the present invention is not limited to a power plant, an industrial steam generating boiler for generating drying steam without generating power, and a comparison without generating power. It can be used in district heating and cooling boilers for air conditioning in a small area.
  • FIG. 1 is a flowchart showing a power plant provided with a power generation fuel production facility as an example of a fuel generating facility for steam generation according to the present invention.
  • FIG. 2 is a view showing a tent house of the power generation fuel production facility in FIG. 1, wherein (a) is a front view and (b) is a perspective view.
  • FIG. 3 is a flowchart showing a power plant equipped with a conventional fuel production facility for power generation. Explanation of symbols

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Abstract

[PROBLEMS] To facilitate, without inviting of a run-up of facility cost, the handling of a fermentation product having been processed by the production facilities for steam generation fuel during the shutdown of steam generation facilities having, annexed thereto, production facilities for steam generation fuel. [MEANS FOR SOLVING PROBLEMS] There are provided production facilities for steam generation fuel (production facilities for power generation fuel) (200) including aerobic fermentor (202) capable of fermenting of waste and storehouse (10) for storage of a fermentation product. By virtue of the storage in the storehouse of the fermentation product having been processed by the aerobic fermentor, even when the run of boiler (104), etc. using the steam generation fuel produced by the above production facilities for steam generation fuel is shut down for the purpose of maintenance, etc., the fermentation product becomes available as the steam generation fuel upon resumption of the run of the boiler, etc. Rotary-kiln fermentor, etc. can be used as the aerobic fermentor, and closed buildings, such as a tent house, can be used as the storehouse. In the storehouse, any anaerobic fermentation of the fermentation product can be inhibited.

Description

明 細 書  Specification
蒸気発生用燃料製造設備及び蒸気発生設備並びに廃棄物の蒸気発生 用燃料化方法  Steam generating fuel manufacturing facility, steam generating facility, and method of converting waste to steam generating fuel
技術分野  Technical field
[0001] 本発明は、都巿ゴミ等の廃棄物を蒸気発生用燃料として有効処理するための蒸気 発生用燃料製造設備、及びこの設備を付設した蒸気発生設備、並びに都巿ゴミ等の 廃棄物を蒸気発生用燃料化する方法に関する。  [0001] The present invention relates to a steam generating fuel manufacturing facility for effectively treating waste such as Tokyo garbage as a steam generating fuel, a steam generating facility provided with this facility, and waste such as Tokyo garbage. The present invention relates to a method for converting steam into fuel for steam generation.
背景技術  Background art
[0002] 従来、厨芥等の有機廃棄物の処理量が増大しているため、その有効な処理方法及 び再利用方法に関して多くの提案、試みがなされている。一つの方法として、回転発 酵槽を用いて有機廃棄物を発酵処理 (コンポスト化)することが提案されて 、る。また 、特許文献 1には、有機廃棄物をセメントキルンで発酵処理したり、セメント製造での 燃料の一部として用いることも記載されて 、る。  [0002] Conventionally, since the amount of organic waste such as soot has increased, many proposals and attempts have been made regarding effective treatment methods and reuse methods. As one method, it has been proposed to ferment (compost) organic waste using a rotary fermenter. Patent Document 1 also describes that organic waste is fermented with a cement kiln or used as part of fuel for cement production.
[0003] しかし、特許文献 1に記載のように、セメントキルンを発酵処理装置として単に流用 しても、有機廃棄物を安定してコンポストィ匕することは困難であった。また、セメント製 造用の燃料として発酵処理品を用いることも試みられたが、質の高い発酵処理品を 効率良く得ることが困難なことが判明した。  [0003] However, as described in Patent Document 1, it has been difficult to stably compost organic waste even if a cement kiln is simply used as a fermentation treatment apparatus. Attempts have also been made to use fermented products as fuel for cement production, but it has proven difficult to efficiently obtain high-quality fermented products.
[0004] そこで、本出願人は、特許文献 2及び 3において、セメントキルン等のセメント製造 設備を、廃棄物の処理に有効に活かすため、ロータリーキルン又はロータリードライ ヤーを用い、ゴミ袋に収容された都巿ゴミ等の廃棄物をそのままロータリーキルン又 はロータリードライヤーに投入し、発酵処理する方法等を提案した。また、本出願人 は、特許文献 4において、上記発酵処理した廃棄物を発電用燃料として利用する技 術を提案した。  [0004] Therefore, in Patent Documents 2 and 3, the applicant of the present invention used a rotary kiln or a rotary dryer to accommodate cement manufacturing equipment such as a cement kiln effectively in the treatment of waste. We proposed a method of fermenting by putting wastes such as Tokyo garbage into a rotary kiln or rotary dryer as they are. In addition, in the patent document 4, the present applicant has proposed a technique of using the fermented waste as a fuel for power generation.
[0005] 特許文献 4に記載の方法を実施するための発電所は、例えば、図 3に示すように、 発電設備 300に、発電用燃料製造設備 400を付設して ヽる。  [0005] As shown in FIG. 3, for example, a power plant for carrying out the method described in Patent Document 4 is provided with a power generation fuel production facility 400 attached to a power generation facility 300.
[0006] この発電設備 300は、石炭焚き火力発電設備であって、大別して、貯炭槽 301と、 石炭粉砕ミル 303と、パーナ 305及び壁面に水を通すパイプ 307を備えるボイラ 304 と、蒸気の力によって回転するタービン 308と、タービン 308の回転を電力に変換す る発電装置 309と、タービン 308からの水蒸気を水に変換して再利用するための復 水器 306等で構成される。また、発電設備 300は、ボイラ 304からの排ガスを処理す るため、熱交換器 310と、電気集塵機 312と、排煙脱硫装置 313と、煙突 314とを備 える。 [0006] This power generation facility 300 is a coal-fired thermal power generation facility, roughly divided into a coal storage tank 301, a coal crushing mill 303, a boiler 305, and a boiler 304 having a pipe 307 through which water passes. And a turbine 308 that is rotated by the power of steam, a power generation device 309 that converts the rotation of the turbine 308 into electric power, a condenser 306 that converts the steam from the turbine 308 into water, and reuses it. Is done. Further, the power generation facility 300 includes a heat exchanger 310, an electric dust collector 312, a flue gas desulfurization device 313, and a chimney 314 in order to process the exhaust gas from the boiler 304.
[0007] 一方、発電用燃料製造設備 400は、廃棄物の発酵処理 (コンポスト化)を行うため、 大別して、発酵処理装置 402と、貯蔵兼発酵処理用タンク 404、 406と、発酵処理品 に含まれる異物の分離'除去装置 408〜418等を備える。  [0007] On the other hand, since the power generation fuel production facility 400 performs fermentation treatment (composting) of waste, it is roughly classified into a fermentation treatment device 402, storage and fermentation treatment tanks 404 and 406, and a fermentation treatment product. The apparatus includes a foreign matter separation / removal device 408 to 418.
[0008] 発酵処理装置 402の入口部には、都巿ゴミ、下水汚泥、戻し分の発酵処理品を投 入する投入口 420、 422、 424、及び発酵ガス引出口 426が設けられる。発酵ガス引 出口 426には、排気手段として換気用風車 419が設けられる。一方、発酵処理装置 402の出口部には、発酵品の取出口 428と、空気吹込口 427と力設けられ、空気吹 込口 427には、給気手段として空気吹き込み風車 429が設けられる。  [0008] At the inlet of the fermentation treatment apparatus 402, there are provided inlets 420, 422, 424 and a fermentation gas outlet 426 for feeding the waste garbage, sewage sludge, and the fermented product for return. The fermentation gas outlet 426 is provided with a ventilation wind turbine 419 as an exhaust means. On the other hand, a fermented product outlet 428 and an air inlet 427 are provided at the outlet of the fermentation treatment apparatus 402. The air inlet 427 is provided with an air inlet wind turbine 429 as an air supply means.
[0009] 貯蔵兼発酵処理用タンク 404、 406は、発酵処理装置 402での廃棄物の発酵をさ らに進めるとともに、発酵処理品を一時的に貯蔵するために備えられ、底部に定量引 出機を備え、定量引出機からの発酵処理品は、発電設備 300への供給ライン 430と 、発酵処理装置 402への戻しライン 432の 、ずれにも供給可能である。  [0009] Storage and fermentation treatment tanks 404 and 406 are provided for further fermentation of waste in the fermentation treatment apparatus 402 and for temporarily storing the fermentation treatment product, and are quantitatively drawn to the bottom. The fermented processed product from the quantitative drawer can be supplied to a deviation between the supply line 430 to the power generation facility 300 and the return line 432 to the fermenter 402.
[0010] 発酵処理装置 402の後段に設けられた機器 408〜418は、発酵処理品から異物を 除去するためのものであって、ベノレトコンベア 409〖こ付設された磁選機 408と、一次 破砕機 410と、トロンメル 412と、高ガウス選別機 414と、アルミニウム選別機 416と、 二次破石辛機 418とで構成される。  [0010] Equipments 408 to 418 provided in the subsequent stage of the fermentation treatment apparatus 402 are for removing foreign substances from the fermented product, and include a magnetic separator 408 provided with a benolet conveyor 409 and a primary crusher 410. It consists of a Trommel 412, a high Gaussian sorter 414, an aluminum sorter 416, and a secondary lithotripter 418.
[0011] 次に、上記構成を備えた発電所における廃棄物の発電用燃料化方法及び燃料ィ匕 した廃棄物の利用方法について説明する。  [0011] Next, a fuel generation method for waste generation at a power plant having the above-described configuration and a method for using fueled waste will be described.
[0012] 発電用燃料製造設備 400の発酵処理装置 402には、都巿ゴミの投入口 420から都 巿ゴミを、都巿ゴミに加えて下水汚泥の投入口 422から下水汚泥を投入する。さら〖こ 、貯蔵兼発酵用処理タンク 406から発酵処理品の一部をライン 432を通じて発酵処 理装置 402に戻す。これは、発酵処理装置 402内の菌体の安定化を図り、発酵処理 品の品質を安定させるなどの目的のためである。 [0013] 廃棄物は、発酵処理装置 402内を移動し、 3日間経過後取出口 428から発酵処理 品を取り出す。発酵中、入口部側では、自然界に生息する発酵菌により、易分解成 分の好気的分解作用のような機序によって発酵が進行する。一方、発酵処理中、発 酵ガス引出口 426からは、換気用風車 419によって発酵処理装置 402内の発酵ガス を引き出し、ボイラ 304に一次空気として導入し、発酵工程で発生するアンモニア等 を分解し、排ガスの脱臭を行う。また、空気吹込口 427から空気吹き込み風車 429に よって給気し、発酵処理装置 402内の好気条件を保ち、好気性菌による発酵を維持 する。 [0012] In the fermentation treatment apparatus 402 of the power generation fuel production facility 400, the city trash is input from the city trash input 420, and the sewage sludge is input from the city trash in addition to the city trash from the 422 sewage sludge input 422. Further, a part of the fermented product is returned from the storage / fermentation processing tank 406 to the fermenting device 402 through the line 432. This is for the purpose of stabilizing the cells in the fermentation treatment apparatus 402 and stabilizing the quality of the fermentation treatment product. [0013] The waste moves in the fermentation treatment apparatus 402, and after 3 days, the fermentation treatment product is taken out from the outlet 428. During fermentation, fermentation proceeds by a mechanism such as aerobic degradation of easily degraded components by fermenting bacteria that inhabit the natural world at the entrance. On the other hand, during the fermentation process, the fermentation gas in the fermentation processing apparatus 402 is drawn out from the fermentation gas outlet 426 by the ventilation wind turbine 419 and introduced into the boiler 304 as primary air to decompose ammonia and the like generated in the fermentation process. Deodorize exhaust gas. In addition, air is supplied from the air blowing port 427 by the air blowing windmill 429, the aerobic condition in the fermentation treatment apparatus 402 is maintained, and fermentation by aerobic bacteria is maintained.
[0014] 以上のようにして得られた発酵処理品は、磁選機 408、高ガウス選別機 414、アル ミニゥム選別機 416によって、鉄、ステンレス、アルミニウムを各々除去し、これらの再 資源化を図る。さらに、一次破砕機 410と二次破砕機 418とによって、発酵処理品を 適切な粒度に調整する。  [0014] The fermented processed product obtained as described above is removed by using a magnetic separator 408, a high Gaussian sorter 414, and an aluminum sorter 416 to remove iron, stainless steel, and aluminum, respectively. . Further, the fermented product is adjusted to an appropriate particle size by the primary crusher 410 and the secondary crusher 418.
[0015] 発酵処理品は、発電用燃料としてパケットエレベータ 442、 443によって寸胴型の 貯蔵兼発酵処理用タンク 404、 406に送られ、循環系統によって循環される。すなわ ち、タンク 404、 406の下にはべノレトコンベア 444、 446力 ^設けられており、これらに 一部取り出された発酵処理品は、パケットエレベータ 448で垂直輸送され、再度貯蔵 兼発酵処理用タンク 404、 406に戻される。これによつて、好気状態が維持される。発 酵処理品は、ベルトコンベア 450を経て、ライン 430から発電設備 300に発電用燃料 として供給され、あるいは一部ライン 432を経て発酵処理装置 402に戻される。  [0015] The fermented processed product is sent as a fuel for power generation by the packet elevators 442 and 443 to the storage tanks and fermenting processing tanks 404 and 406, and is circulated by a circulation system. In other words, under the tanks 404 and 406, benoreto conveyors 444 and 446 are installed, and some of the fermented products taken out of these are transported vertically by the packet elevator 448 for storage and fermentation again. Tanks 404 and 406. Thereby, an aerobic state is maintained. The fermented product is supplied as a fuel for power generation from the line 430 to the power generation facility 300 via the belt conveyor 450 or returned to the fermenting device 402 via a part of the line 432.
[0016] 一方、上記発電設備 300では、発電用燃料製造設備 400の運転と併行して発電を 行う。貯炭槽 301に貯蔵された石炭をベルトコンベア 302を介して石炭粉砕ミル 303 に供給し、石炭粉砕ミル 303で微粉にした後、パーナ 305からボイラ 304に吹き込ん で燃焼させる。このボイラ 304の壁面を挿通するノイブ 307内を流れる水を熱して蒸 気を発生させ、発生した蒸気でタービン 308を回転させ、このタービン 308に直結し た発電装置 309で電力を発生させる。また、ボイラ 304からの排ガスは、熱交翻31 0でファン 311によって導入された空気の昇温に利用した後、電気集塵機 312で除 塵され、排煙脱硫装置 313で SOxが除去された後、煙突 314を介して大気に放出さ れる。 [0017] 特許文献 1 :日本特開昭 52— 97270号公報 On the other hand, the power generation facility 300 generates power in parallel with the operation of the power generation fuel production facility 400. The coal stored in the coal storage tank 301 is supplied to the coal pulverization mill 303 via the belt conveyor 302, and is pulverized by the coal pulverization mill 303. Then, the coal is blown into the boiler 304 and burned. Water flowing in the Neuve 307 inserted through the wall surface of the boiler 304 is heated to generate steam, and the turbine 308 is rotated by the generated steam, and electric power is generated by the power generator 309 directly connected to the turbine 308. In addition, the exhaust gas from the boiler 304 is used to heat the air introduced by the fan 311 in the heat exchange 310, and then is removed by the electrostatic precipitator 312 and SOx is removed by the flue gas desulfurizer 313. To the atmosphere via the chimney 314. Patent Document 1: Japanese Patent Application Laid-Open No. 52-97270
特許文献 2 :日本特開 2001— 191059号公報  Patent Document 2: Japanese Patent Application Laid-Open No. 2001-191059
特許文献 3 :日本特開 2001— 191060号公報  Patent Document 3: Japanese Patent Laid-Open No. 2001-191060
特許文献 4:米国特開 2003Z0051396号公報  Patent Document 4: US Patent Publication No. 2003Z0051396
発明の開示  Disclosure of the invention
発明が解決しょうとする課題  Problems to be solved by the invention
[0018] 上記発電用燃料製造設備 400を付設した発電設備 300は、ボイラ 304の燃焼部の 耐火物の点検'保守、バルブ、弁の点検'保守、配管、溶接部の点検'保守によって 、年に 2〜3回の割合で、 2〜3週間程度運転を休止するのが通常である。しかし、発 電設備 300の休止中においても、発電用燃料製造設備 400は、依然として廃棄物を 受け入れ、発酵処理を行っているため、発電設備 300で燃料として利用できない分 については、発電設備 300が運転を再開するまで、発電用燃料製造設備 400の貯 蔵兼発酵処理用タンク 404、 406に一時的に貯蔵する必要がある。  [0018] The power generation facility 300 with the above-mentioned power generation fuel production facility 400 is equipped with a yearly inspection of the refractories of the combustion section of the boiler 304, maintenance, inspection of valves and valves, maintenance, inspection of piping and welds, and maintenance. It is normal to stop operation for 2 to 3 weeks at a rate of 2 to 3 times. However, even when the power generation facility 300 is out of service, the power generation fuel production facility 400 still accepts waste and conducts fermentation treatment, so that the power generation facility 300 cannot use it as fuel. Until operation is resumed, it is necessary to store temporarily in the storage and fermentation tanks 404 and 406 of the power generation fuel production facility 400.
[0019] しかし、上述のように、発電設備 300の休止は、 2〜3週間程度連続するため、貯蔵 兼発酵処理用タンク 404、 406に一時的に貯蔵すべき発酵処理品は大量となり、貯 蔵兼発酵処理用タンク 404、 406の貯蔵能力を高めるため、これらを大規模なものと する必要があり、設備コストが高騰するという問題があった。  [0019] However, as described above, the outage of the power generation equipment 300 continues for about 2 to 3 weeks, so that a large amount of fermentation processed products should be temporarily stored in the storage and fermentation processing tanks 404 and 406. In order to increase the storage capacity of the storage and fermentation tanks 404 and 406, it was necessary to make them large-scale, and there was a problem that the equipment cost increased.
[0020] また、上記廃棄物を発酵処理して得られた発電用燃料は、発電設備 300のみなら ず、工業用蒸気発生ボイラー、地域冷暖房用ボイラー等にも利用することができるが 、その場合でも、ボイラの燃焼部の耐火物の点検 ·保守等によって上記と同様の休止 期間が必要となり、休止時の発酵処理品の取り扱いについて同様の問題が発生する  [0020] In addition, the fuel for power generation obtained by fermenting the waste can be used not only for the power generation facility 300 but also for industrial steam generating boilers, district heating and cooling boilers, etc. However, inspection and maintenance of the refractory in the boiler combustion section requires the same period of suspension as above, and the same problem occurs when handling fermented products during the period of suspension.
[0021] そこで、本発明は、上記従来の発電用燃料製造設備を含む蒸気発生用燃料製造 設備における問題点に鑑みてなされたものであって、設備コストの高騰ィ匕を招くこと なぐ蒸気発生用燃料製造設備が付設された蒸気発生設備の休止期間中に、蒸気 発生用燃料製造設備によって処理された発酵処理品を容易に取り扱うことのできる 蒸気発生用燃料製造設備等を提供することを目的とする。 Therefore, the present invention has been made in view of the problems in the steam generating fuel manufacturing equipment including the above-described conventional power generating fuel manufacturing equipment, and it is possible to generate steam without causing an increase in equipment cost. The purpose is to provide a steam generating fuel manufacturing facility that can easily handle the fermented products processed by the steam generating fuel manufacturing facility during the suspension period of the steam generating facility to which the fuel generating facility is attached And
課題を解決するための手段 [0022] 本発明は、蒸気発生用燃料製造設備であって、廃棄物を発酵処理するための好 気性発酵処理装置と、該好気性発酵処理装置で発酵処理した発酵処理品を貯蔵す る貯蔵倉庫とを備えることを特徴とする。 Means for solving the problem [0022] The present invention is a fuel generating facility for generating steam, which is an aerobic fermentation treatment device for fermenting waste, and a storage for storing a fermented product fermented by the aerobic fermentation treatment device. And a warehouse.
[0023] 上記蒸気発生用燃料は、発電所、工業用蒸気発生ボイラー、地域冷暖房用ボイラ 一等において利用される。  [0023] The steam generating fuel is used in power plants, industrial steam generating boilers, district heating and cooling boilers and the like.
[0024] また、好気性発酵処理装置としては、有機性廃棄物のコンポスト化処理に用いられ ているロータリーキルン式、スクープ式、オーガ一式、パドル式などの装置を用いるこ とができ、内張り煉瓦を撤去したロータリーキルン又はロータリードライヤーを用いるこ ともできる。また、貯蔵倉庫としては、例えばテントハウスなどの密閉式建屋を用いるこ とができ、外壁及び天井等の材質は問わない。  [0024] In addition, as the aerobic fermentation treatment device, a rotary kiln type, scoop type, auger type, paddle type device, etc. used for composting organic waste can be used. A removed rotary kiln or rotary dryer can also be used. In addition, as a storage warehouse, for example, a sealed building such as a tent house can be used, and materials such as an outer wall and a ceiling are not limited.
[0025] 尚、本明細書中にぉ 、て、「廃棄物」には、以下の処理対象物が含まれる。  Note that in this specification, “waste” includes the following objects to be treated.
(1)有機汚泥:下水汚泥、し尿系汚泥 (浄化槽汚泥、農業集落排水汚泥)、食品産業 排水汚泥、ァォコ '底泥等がこの範疇に含まれる。  (1) Organic sludge: Sewage sludge, human waste sludge (septic tank sludge, agricultural settlement wastewater sludge), food industry wastewater sludge, coconut bottom sludge, etc. are included in this category.
(2)食品加工残さ：ビールかす、焼酎かす、おから (豆腐かす)、製糖残さ、果汁残さ 、コーヒーかす、茶かす、畜産残さ等がこの範疇に含まれる。  (2) Food processing residue: Beer ground, shochu ground, okara (tofu ground), sugar residue, fruit juice residue, coffee grounds, tea grounds, livestock residue, etc. are included in this category.
(3)林産残さ、植物残さ：パルプ廃液、バーク、おがくず、チップダスト、剪定枝葉、バ ガス、籾殻、わら類等がこの範疇に含まれる。  (3) Forest residue, plant residue: Pulp waste liquor, bark, sawdust, chip dust, pruned branches, bagasse, rice husk, straw, etc. are included in this category.
(4)生活ゴミ:厨芥類 (生ゴミ)、都市収集可燃ゴミ、事業系生ゴミ等がこの範疇に含ま れる。  (4) Household waste: This category includes food (raw waste), city-collectable combustible waste, and business-related waste.
(5)畜産廃棄物：家畜ふん尿、鳥糞等がこの範疇に含まれる。  (5) Livestock waste: Livestock manure, bird droppings, etc. are included in this category.
(6)水産廃棄物：魚腸骨、ヘ 、死魚等がこの範疇に含まれる。  (6) Marine waste: Fish iliac, fried, dead fish, etc. are included in this category.
(7)上記列記したものを二以上混合した物も廃棄物の概念に含まれる。  (7) The waste concept also includes a mixture of two or more of those listed above.
[0026] そして、本発明によれば、貯蔵倉庫に好気性発酵装置で発酵処理した発酵処理品 を貯蔵することができるため、本蒸気発生用燃料製造設備で製造された蒸気発生用 燃料を使用するボイラ等が保守のために運転を休止した場合でも、受け入れた廃棄 物を発酵処理した発酵処理品をボイラの運転再開後、蒸気発生用燃料として使用す ることができ、設備コストの高騰を招くことなぐ受け入れた廃棄物を確実に処理する ことができる。 [0027] 前記蒸気発生用燃料製造設備の貯蔵倉庫にお!ヽて、前記発酵処理品のメタン及 び硫化水素等の発生を伴う嫌気性発酵を抑制することができる。前記貯蔵倉庫の前 記発酵処理品の最大堆積高を 2m以上、 5m以下とすることが望ましい。また、前記 貯蔵庫全容積に対する、前記貯蔵倉庫に貯蔵する発酵処理品の容積を 10%以上 4 0%以下とすることができる。通常のコンポスト設備では二次発酵設備として通気設備 があるが、蒸気発生用燃料製造設備では二次発酵の必要がないので、空気吹き込 み設備をなくして設備費を小さくした。この場合、そのままであるとメタン等の可燃性 ガスの発生を伴う嫌気性発酵となり、爆発等の危険性が高くなるので、それを抑制す る必要がある。発酵処理品の最大堆積高を 5m以下とすることにより、堆積層内部で の嫌気性発酵をより効果的に抑制することができる。 [0026] According to the present invention, since the fermented processed product fermented by the aerobic fermenter can be stored in the storage warehouse, the steam generating fuel manufactured by the steam generating fuel manufacturing facility is used. Even if the boilers that are to be operated are suspended for maintenance, fermented products that have been fermented from the received waste can be used as fuel for steam generation after restarting the boiler operation, resulting in an increase in equipment costs. It is possible to reliably process the accepted waste without inviting it. [0027] An anaerobic fermentation accompanied by generation of methane, hydrogen sulfide, and the like of the fermented product can be suppressed in a storage warehouse of the fuel production facility for generating steam. It is desirable that the maximum deposition height of the fermented processed product in the storage warehouse is 2 m or more and 5 m or less. Further, the volume of the fermented processed product stored in the storage warehouse with respect to the total volume of the storage can be 10% or more and 40% or less. The normal compost facility has a venting facility as a secondary fermentation facility, but the fuel production facility for steam generation does not require secondary fermentation, so the equipment cost was reduced by eliminating the air blowing facility. In this case, anaerobic fermentation with the generation of flammable gas such as methane will occur and the risk of explosion will increase, so it is necessary to suppress it. By setting the maximum deposition height of the fermented product to 5 m or less, anaerobic fermentation inside the sedimentary layer can be more effectively suppressed.
[0028] さらに、前記発酵処理品から貯蔵中に発生し、倉庫内に充満する、臭気及び微量 のメタン等の可燃性ガスを除去するための、前記貯蔵倉庫の倉庫内空気の換気装 置、及び換気空気を処理するための脱臭機を備えることが好ましい。換気設備として は、吸引ファン等の倉庫内空気を屋外に排出するものであれば良ぐ換気量としては 、貯蔵倉庫全容積を毎時 3回以上換気することが好ましい。脱臭機の方式としては、 プラズマ方式、オゾン方式、吸着方式、薬液洗浄方式、燃焼方式、生物脱臭方式等 、コンポストィ匕設備等に用いられている種々の脱臭機が適用可能である。また、前記 貯蔵倉庫には、倉庫内の可燃性ガス濃度をモニターする検知器を備えることができ る。 [0028] Further, a ventilation device for air in the warehouse of the storage warehouse for removing odors and a small amount of flammable gas such as methane generated during storage from the fermented processed product and filling the warehouse, And a deodorizer for treating the ventilation air. As ventilation equipment, if the air in the warehouse, such as a suction fan, can be discharged to the outside, it is preferable to ventilate the entire volume of the storage warehouse at least three times per hour. As the deodorizer system, various deodorizers used in composting facilities such as plasma system, ozone system, adsorption system, chemical cleaning system, combustion system, biological deodorization system, etc. can be applied. Further, the storage warehouse can be provided with a detector for monitoring the concentration of combustible gas in the warehouse.
[0029] また、前記貯蔵倉庫にお 、て、蒸気発生設備で前記発酵処理品を燃料の一部とし て使用する際に、該蒸気発生設備での 1日以上 30日間以下の使用量を貯蔵可能と することが好ましい。これによつて、設備の保守のための休止期間内に処理できなか つた発酵処理品をすベて一時的に貯蔵することができる。  [0029] In addition, when the fermented processed product is used as part of fuel in the steam generation facility in the storage warehouse, the usage amount of the steam generation facility for 1 day or more and 30 days or less is stored. Preferably it is possible. This makes it possible to temporarily store all the fermented products that could not be processed within the downtime for equipment maintenance.
[0030] さらに、本発明は、蒸気発生設備であって、前記蒸気発生用燃料製造設備を付設 することを特徴とする。蒸気発生設備が前記蒸気発生用燃料製造設備を備えること により、蒸気発生設備のボイラが保守等で運転を休止した場合でも、受け入れた廃 棄物を発酵処理した発酵処理品を貯蔵倉庫に貯蔵することができ、ボイラの運転再 開後、貯蔵倉庫に貯蔵した発酵処理品を蒸気発生用燃料として使用することができ るため、受け入れた廃棄物を確実に処理することができる。尚、前記蒸気発生用燃 料製造設備と貯蔵倉庫とは、蒸気発生設備と同じ敷地内に存在する必要はない。 [0030] Further, the present invention is a steam generating facility, characterized in that the fuel generating facility for generating steam is additionally provided. When the steam generation facility is equipped with the fuel generation facility for steam generation, even if the boiler of the steam generation facility is shut down due to maintenance, etc., the fermented products obtained by fermenting the received waste are stored in the storage warehouse. After the boiler is restarted, the fermented products stored in the storage warehouse can be used as fuel for steam generation. Therefore, the received waste can be reliably processed. The steam generation fuel production facility and the storage warehouse do not have to be on the same site as the steam generation facility.
[0031] また、本発明は、廃棄物の蒸気発生用燃料化方法であって、好気性発酵装置にて 廃棄物を発酵処理し、該発酵処理した発酵処理品を貯蔵倉庫に貯蔵し、該貯蔵品 を、蒸気発生設備に搬入し、該蒸気発生設備に搬入した発酵処理品を蒸気発生用 燃料として使用することを特徴とする。  [0031] Further, the present invention is a method for producing fuel for steam generation of waste, wherein the waste is fermented in an aerobic fermentation apparatus, the fermented fermented product is stored in a storage warehouse, The stored product is carried into a steam generation facility, and the fermented product carried into the steam generation facility is used as a fuel for steam generation.
[0032] この廃棄物の蒸気発生用燃料化方法によれば、貯蔵倉庫に好気性発酵装置で発 酵処理した発酵処理品を貯蔵することにより、本蒸気発生用燃料製造設備で製造さ れた蒸気発生用燃料を使用するボイラ等が保守のために運転を休止した場合でも、 受け入れた廃棄物を発酵処理した発酵処理品をボイラ等の運転再開後、蒸気発生 用燃料として使用することができ、受け入れた廃棄物を確実に処理することができる  [0032] According to this method of converting waste to steam generating fuel, the fermented product that has been fermented with an aerobic fermentation apparatus is stored in a storage warehouse, and thus manufactured by the steam generating fuel manufacturing facility. Even when boilers that use steam generating fuel stop operating for maintenance, fermented products that have been fermented from the received waste can be used as fuel for steam generation after restarting boiler operation. , Can handle the received waste reliably
[0033] 前記廃棄物の蒸気発生用燃料化方法において、前記好気性発酵装置において、 前記廃棄物を 12時間以上好気性発酵処理することが好ましい。また、前記貯蔵倉庫 において、前記発酵処理品の嫌気性発酵を抑制することができ、前記貯蔵倉庫全容 積に対する、前記貯蔵倉庫に貯蔵する前記発酵処理品の容積比を 10%以上、 40 %以下とし、前記貯蔵倉庫における前記発酵処理品の堆積高を 2m以上、 5m以下 とすることができる。 [0033] In the fuel generation method for generating steam from the waste, the waste is preferably subjected to an aerobic fermentation treatment for 12 hours or more in the aerobic fermentation apparatus. Further, anaerobic fermentation of the fermented processed product can be suppressed in the storage warehouse, and the volume ratio of the fermented processed product stored in the storage warehouse to the total volume of the stored warehouse is 10% or more and 40% or less. And the accumulation height of the fermented processed product in the storage warehouse can be 2 m or more and 5 m or less.
発明の効果  The invention's effect
[0034] 以上のように、本発明によれば、設備コストの高騰ィ匕を招くことなぐ蒸気発生用燃 料製造設備が付設された蒸気発生設備の休止期間中に、蒸気発生用燃料製造設 備によつて処理された発酵処理品を容易に取り扱うことなどが可能となる。  [0034] As described above, according to the present invention, the steam generating fuel production facility is installed during the suspension period of the steam generating facility to which the steam generating fuel production facility is attached without causing an increase in equipment cost. It becomes possible to easily handle the fermented product that has been processed by the equipment.
発明を実施するための最良の形態  BEST MODE FOR CARRYING OUT THE INVENTION
[0035] 次に、本発明の実施の形態について図面を参照しながら説明する。 Next, embodiments of the present invention will be described with reference to the drawings.
[0036] 図 1は、本発明にかかる蒸気発生用燃料製造設備の一例としての発電用燃料製造 設備 200を付設した発電所を示し、この発電所の発電設備 100は、貯炭槽 101と、 石炭粉砕ミル 103と、パーナ 105及び壁面に水を通すパイプ 107を備えるボイラ 104 と、蒸気によって回転するタービン 108と、タービン 108の回転を電力に変換する発 電装置 109と、タービン 108からの水蒸気を水に変換して再利用するための復水器 1 06と、ボイラ 104からの排ガス処理設備としての、熱交翻 110と、電気集塵機 112 と、排煙脱硫装置 113と、煙突 114等を備える。 FIG. 1 shows a power plant provided with a power generation fuel production facility 200 as an example of a steam generating fuel production facility according to the present invention. The power generation facility 100 of this power plant includes a coal storage tank 101, coal A crushing mill 103, a boiler 105 having a pan 105 and a pipe 107 for passing water through the wall surface, a turbine 108 rotated by steam, and a turbine 108 that converts the rotation of the turbine 108 into electric power. An electrical device 109, a condenser 106 for converting steam from the turbine 108 into water, and a heat exchanger 110, an electric dust collector 112 as an exhaust gas treatment facility from the boiler 104, an exhaust A smoke desulfurization unit 113 and a chimney 114 are provided.
[0037] 一方、発電用燃料製造設備 200は、廃棄物の発酵処理を行うため、発酵処理装置 202と、貯蔵兼発酵処理用タンク 204と、発酵処理品に含まれる異物の分離，除去装 置 208〜218と、発電設備 100の運転休止時に、発酵処理品を貯蔵するための貯 蔵倉庫としてのテントハウス 10等を備える。このテントハウス 10が本発明の特徴部分 である。 [0037] On the other hand, since the power generation fuel production facility 200 performs fermentation treatment of waste, a fermentation treatment apparatus 202, a storage and fermentation treatment tank 204, and a device for separating and removing foreign substances contained in the fermentation treatment product. 208 to 218, and the tent house 10 as a storage warehouse for storing fermented products when the power generation facility 100 is out of operation. This tent house 10 is a characteristic part of the present invention.
[0038] テントハウス 10は、図 2に示すように、多数の骨部材 11と、骨部材 11によって支持 される被覆部材 12と、車両等の出入口 13と、テントハウス 10の換気空気を処理する プラズマ式脱臭機 14等で構成される。  As shown in FIG. 2, the tent house 10 processes a large number of bone members 11, a covering member 12 supported by the bone members 11, an entrance / exit 13 such as a vehicle, and the ventilation air of the tent house 10. It consists of a plasma type deodorizer 14 etc.
[0039] テントハウス 10は、貯蔵兼発酵処理用タンク 204での発酵処理品の嫌気性発酵を 抑制することができ、例えば、 1200t (3400m3)程度の発酵処理品を貯蔵することが でき、置場の実面積が 1100m2、全容積 15000m3、貯蔵される発酵処理品に対する テントハウス 10の全容積が 20%程度のものを用いる。 [0039] The tent house 10 can suppress the anaerobic fermentation of the fermented processed product in the storage and fermentation processing tank 204, for example, can store a fermented processed product of about 1200 t (3400 m 3 ), The actual storage area is 1100m 2 , the total volume is 15000m 3 , and the total volume of the tent house 10 for the fermented processed products to be stored is about 20%.
[0040] また、図 3に示した従来の発電用燃料製造設備 400と同様に、図 1の発酵処理装 置 202の入口部には、都市ゴミ、下水汚泥、戻し分の発酵処理品を投入する投入口 220、 222、 224、及び発酵ガス引出口 226力 ^設けられ、発酵ガス引出口 226には、 換気用風車 219が設けられる。一方、発酵処理装置 202の出口部には、発酵品取 出口 228と、空気吹込口 227と力 S設けられ、空気吹込口 227には、熱交 110力 らの空気を導入するための空気吹き込み風車 229が設けられる。尚、下水汚泥、戻 し分の発酵処理品を投入は必須ではなぐ発酵処理装置 202に都巿ゴミのみを投入 することちでさる。  [0040] Similarly to the conventional power generation fuel production facility 400 shown in FIG. 3, the municipal waste, sewage sludge, and the returned fermented processed product are introduced into the inlet of the fermentation processing device 202 in FIG. The inlets 220, 222, 224, and the fermentation gas outlet 226 are provided, and the wind turbine 219 for ventilation is provided at the fermentation gas outlet 226. On the other hand, a fermented product outlet 228 and an air inlet 227 and a force S are provided at the outlet of the fermentation treatment apparatus 202, and an air inlet for introducing air from the heat exchange 110 force is provided in the air inlet 227. A windmill 229 is provided. It should be noted that it is not necessary to input sewage sludge and the returned fermented processed product, but it is only necessary to input only garbage in the fermentation processing apparatus 202.
[0041] 貯蔵兼発酵処理用タンク 204は、発酵処理装置 202での発酵をさらに進めるととも に、発酵処理品を一時的に貯蔵するために備えられ、底部に定量引出機を備え、定 量引出機からの発酵処理品は、発電設備 100への供給ライン 230と、発酵処理装置 202への戻しライン 232と、テントハウス 10への貯蔵ライン 250の!、ずれにも供給可 能である。 [0042] 発酵処理装置 202の後段に設けられた機器 208〜218は、発酵処理品から異物を 除去するためのものであって、ベルトコンベア 209に付設された磁選機 208と、一次 破砕機 210と、トロンメル 212と、高ガウス選別機 214と、アルミニウム選別機 216と、 二次破石辛機 218とで構成される。 [0041] The storage / fermentation processing tank 204 is provided to further carry out the fermentation in the fermentation processing apparatus 202 and temporarily store the fermented processed product. Fermented processed products from the drawer can be supplied to the supply line 230 to the power generation facility 100, the return line 232 to the fermentation processing apparatus 202, and the storage line 250 to the tent house 10! [0042] The devices 208 to 218 provided in the subsequent stage of the fermentation treatment apparatus 202 are for removing foreign substances from the fermentation treatment product, and include a magnetic separator 208 attached to the belt conveyor 209, and a primary crusher 210. It consists of a trommel 212, a high Gaussian sorter 214, an aluminum sorter 216, and a secondary lithotripter 218.
[0043] 次に、上記構成を備えた発電所における廃棄物の発電用燃料化方法及び燃料ィ匕 した廃棄物の利用方法について説明する。  [0043] Next, a method of converting waste to power generation at a power plant having the above configuration and a method of using fueled waste will be described.
[0044] 発電用燃料製造設備 200の発酵処理装置 202には、都巿ゴミの投入口 220から都 巿ゴミを、都巿ゴミに加えて下水汚泥の投入口 222から下水汚泥を投入する。さら〖こ 、貯蔵兼発酵用処理タンク 204から発酵処理品の一部を戻しライン 232を通じて発 酵処理装置 202に戻す。これは、発酵処理装置 202内の菌体の安定化を図り、発酵 処理品の品質を安定させるなどの目的のためである。  [0044] In the fermentation treatment apparatus 202 of the power generation fuel production facility 200, the municipal waste is input from the municipal waste input 220, and the sewage sludge is input from the municipal waste in addition to the municipal waste. Further, a part of the fermented product is returned from the storage / fermentation processing tank 204 to the fermenting processing device 202 through the line 232. This is for the purpose of stabilizing the cells in the fermentation treatment apparatus 202 and stabilizing the quality of the fermentation treatment product.
[0045] 廃棄物は、発酵処理装置 202内を移動し、 3日間経過後発酵品取出口 228から発 酵処理品を取り出す。発酵中、入口部側では、自然界に生息する発酵菌により、易 分解成分の好気的分解作用のような機序によって発酵が進行する。一方、発酵処理 中、発酵ガス引出口 226からは、換気用風車 219によって発酵処理装置 202内の発 酵ガスを引き出し、ボイラ 104に導入し、発酵工程で発生するアンモニア等を分解し 、排ガスの脱臭を行う。また、空気吹込口 227から空気吹き込み風車 229によって熱 交換器 110からの空気を給気し、発酵処理装置 202内の好気条件を保ち、好気性 菌による発酵を維持する。尚、発酵処理装置 202で発生した発酵ガスをボイラ 104に 導入せずに、別途設けた脱臭機で処理してもよい。  [0045] The waste moves in the fermentation treatment apparatus 202, and after 3 days, the fermentation treatment product is taken out from the fermentation product outlet 228. During fermentation, fermentation proceeds by a mechanism such as aerobic degradation of easily degradable components on the inlet side by fermenting bacteria that inhabit the natural world. On the other hand, during the fermentation process, from the fermentation gas outlet 226, the fermentation gas in the fermentation processing apparatus 202 is drawn out from the fermentation wind turbine 219 and introduced into the boiler 104 to decompose ammonia and the like generated in the fermentation process, Deodorize. In addition, air from the heat exchanger 110 is supplied from the air blowing port 227 by the air blowing windmill 229, the aerobic condition in the fermentation treatment apparatus 202 is maintained, and fermentation by aerobic bacteria is maintained. In addition, you may process with the deodorizer provided separately, without introducing the fermentation gas generated with the fermentation processing apparatus 202 into the boiler 104. FIG.
[0046] 以上のようにして得られた発酵処理品は、磁選機 208、高ガウス選別機 214、アル ミニゥム選別機 216によって、鉄、ステンレス、アルミニウムを各々除去し、これらの再 資源化を図る。さらに、一次破砕機 210と二次破砕機 218とによって、発酵処理品を 適切な粒度に調整する。  [0046] The fermented processed product obtained as described above is removed by using a magnetic separator 208, a high Gaussian separator 214, and an aluminum separator 216 to remove iron, stainless steel, and aluminum, respectively. . Further, the fermented product is adjusted to an appropriate particle size by the primary crusher 210 and the secondary crusher 218.
[0047] 発酵処理品は、発電用燃料としてパケットエレベータ 242、 243によって貯蔵兼発 酵処理用タンク 204に送られ、循環系統によって循環される。すなわち、タンク 204の 下にはベルトコンベア 244が設けられており、これらに一部取り出された発酵処理品 は、パケットエレベータ 248で垂直輸送され、再度貯蔵兼発酵処理用タンク 204に循 環される。これによつて、好気状態が維持される。発酵処理品は、ベルトコンベア 246 を経て、供給ライン 230から発電設備 100に発電用燃料として供給され、あるいは一 部戻しライン 232を経て発酵処理装置 202に戻される。 [0047] The fermentation processed product is sent to the storage and fermentation processing tank 204 by the packet elevators 242 and 243 as a fuel for power generation, and is circulated by a circulation system. That is, a belt conveyor 244 is provided under the tank 204, and a part of the fermentation processed product taken out of the belt conveyor 244 is vertically transported by the packet elevator 248 and is circulated again to the storage and fermentation processing tank 204. It is circled. Thereby, an aerobic state is maintained. The fermented processed product is supplied as a fuel for power generation from the supply line 230 to the power generation facility 100 via the belt conveyor 246, or returned to the fermentation processing apparatus 202 via a part return line 232.
[0048] 一方、上記発電設備 100では、発電用燃料製造設備 200の運転と併行して発電を 行う。石炭を貯炭槽 101からベルトコンベア 102を介して石炭粉砕ミル 103に搬送し 、石炭粉砕ミル 103で粉砕して微粉炭とした後、パーナ 105からボイラ 104に吹き込 んで燃焼させる。微粉炭の燃焼熱によって、ボイラ 104の壁面を挿通するパイプ 107 内を流れる水を加熱して蒸気を発生させ、発生した蒸気でタービン 108を回転させて 発電装置 109で電力を発生させる。ボイラ 104からの排ガスは、熱交翻110を用い てボイラ 104の一次空気の昇温に利用した後、電気集塵機 112で除塵し、排煙脱硫 装置 113で SOxを除去した後、煙突 114から大気に放出する。  On the other hand, the power generation facility 100 generates power in parallel with the operation of the power generation fuel production facility 200. Coal is conveyed from the coal storage tank 101 to the coal pulverization mill 103 via the belt conveyor 102, pulverized by the coal pulverization mill 103 into pulverized coal, and then blown into the boiler 104 from the Pana 105 and burned. The combustion heat of the pulverized coal heats the water flowing in the pipe 107 that passes through the wall surface of the boiler 104 to generate steam, and the generated steam rotates the turbine 108 to generate electric power at the power generator 109. Exhaust gas from the boiler 104 is used to heat the primary air of the boiler 104 using the heat exchanger 110, then dust is removed by the electrostatic precipitator 112, SOx is removed by the flue gas desulfurizer 113, and the air is discharged from the chimney 114. To release.
[0049] 次に、上記発電設備 100のボイラ 104の運転が休止している場合の動作について 説明する。  [0049] Next, the operation when the operation of the boiler 104 of the power generation facility 100 is suspended will be described.
[0050] 図 1においてボイラ 104の運転が休止している場合には、発酵処理装置 202及び 貯蔵兼発酵処理用タンク 204で発酵処理された発酵処理品をベルトコンベア 246及 び供給ライン 230を介して発電設備 100に供給して発電用燃料として用いることがで きないため、発酵処理品を、パケットエレベータ 243の前段のベルトコンベア、ベルト コンベア 246等力も貯蔵ライン 250を介してテントハウス 10に搬送する。また、バケツ トエレベータ 243の前段のベルトコンベア、ベルトコンベア 246等から発酵処理品を 取り出し、専用の運搬車に積載し、テントハウス 10に運搬することもできる。  In FIG. 1, when the operation of the boiler 104 is stopped, the fermented product fermented in the fermenting apparatus 202 and the storage / fermentation processing tank 204 is passed through the belt conveyor 246 and the supply line 230. Therefore, the fermented processed product is transported to the tent house 10 via the storage line 250 as well as the belt conveyor and belt conveyor 246 at the front stage of the packet elevator 243 because they cannot be used as fuel for power generation. To do. Further, the fermented product can be taken out from the belt conveyor, the belt conveyor 246, etc. in the previous stage of the bucket elevator 243, loaded on a dedicated transport vehicle, and transported to the tent house 10.
[0051] そして、発酵処理品を、テントハウス 10内に約 2mの高さに積載する。テントハウス 1 0は、全容積を 1時間に 3回の割合で換気する。また、換気空気をプラズマ式脱臭機 14で処理する。  [0051] Then, the fermented processed product is loaded into the tent house 10 at a height of about 2 m. Tenthouse 10 ventilates the entire volume at a rate of 3 times per hour. Ventilation air is treated with a plasma deodorizer 14.
[0052] 上記発電設備 100のボイラ 104の運転が再開すると、テントハウス 10内の発酵処 理品を、テントハウス 10から発電設備 100へ発電用燃料として供給する。この際、テ ントハウス 10から直接発電設備 100へ供給するルートを設けてもよぐ図 1の供給ライ ン 230を利用して発電設備 100に供給するようにしてもょ 、。  [0052] When the operation of the boiler 104 of the power generation facility 100 is resumed, the fermented product in the tent house 10 is supplied from the tent house 10 to the power generation facility 100 as a fuel for power generation. At this time, a route for supplying power directly from the tent house 10 to the power generation facility 100 may be provided, or the supply line 230 shown in FIG.
[0053] 尚、上記実施の形態においては、本発明にかかる蒸気発生用燃料製造設備を石 炭焚き火力発電設備に適用した場合を例にとって説明したが、重油焚き火力発電設 備に適用することも可能であり、重油焚き火力発電設備についても石炭焚き火力発 電設備と同様の理由で周期的に休止する必要があるため、本発明にかかる発電用 燃料製造設備を有効利用することができる。 [0053] In the above embodiment, the steam generating fuel production facility according to the present invention is a stone Although the case where it is applied to a coal-fired thermal power generation facility has been described as an example, it can also be applied to a heavy oil-fired thermal power generation facility, and the cycle of a heavy oil-fired thermal power generation facility is similar to that of a coal-fired thermal power generation facility. Therefore, the power generation fuel production facility according to the present invention can be used effectively.
[0054] また、本発明に力かる蒸気発生用燃料製造設備は、発電所のみならず、発電を行 わずに乾燥用蒸気を発生させるための工業用蒸気発生ボイラー、発電を行わずに 比較的狭い地域内の冷暖房を行うための地域冷暖房用ボイラー等において利用す ることちでさる。  [0054] Further, the steam generating fuel production facility that is useful in the present invention is not limited to a power plant, an industrial steam generating boiler for generating drying steam without generating power, and a comparison without generating power. It can be used in district heating and cooling boilers for air conditioning in a small area.
図面の簡単な説明  Brief Description of Drawings
[0055] [図 1]本発明にかかる蒸気発生用燃料製造設備の一例としての発電用燃料製造設 備が付設された発電所を示すフローチャートである。  [0055] FIG. 1 is a flowchart showing a power plant provided with a power generation fuel production facility as an example of a fuel generating facility for steam generation according to the present invention.
[図 2]図 1の発電用燃料製造設備のテントハウスを示す図であって、（a)は正面図、 ( b)は斜視図である。  2 is a view showing a tent house of the power generation fuel production facility in FIG. 1, wherein (a) is a front view and (b) is a perspective view.
[図 3]従来の発電用燃料製造設備が付設された発電所を示すフローチャートである。 符号の説明  FIG. 3 is a flowchart showing a power plant equipped with a conventional fuel production facility for power generation. Explanation of symbols
[0056] 10 テントハウス [0056] 10 tent house
11 骨部材  11 Bone members
12 被覆部材  12 Covering material
13 出入口  13 doorway
14 プラズマ式脱臭機  14 Plasma deodorizer
20 容器  20 containers
21 ガス採取口  21 Gas sampling port
22 発酵処理品  22 Fermented products
100 発電設備  100 Power generation equipment
101 貯炭槽  101 Coal storage tank
102 ベルトコンベア  102 belt conveyor
103 石炭粉砕ミル  103 Coal crushing mill
104 ボイラ 105 ノ 1 ~~ナ 104 boiler 105 1 ~~ Na
106 復水器  106 condenser
107 パイプ  107 pipe
108 タービン  108 turbine
109  109
110 熱交換器  110 heat exchanger
111 ファン  111 fans
112 電 集塵機  112 Dust collector
113 排煙脱硫装置  113 Flue gas desulfurization equipment
114 煙突  114 Chimney
200 発電用燃料製造設備 200 Fuel production facility for power generation
202 発酵処理装置 202 Fermentation processing equipment
204 貯蔵兼発酵処理用タンク 204 Tank for storage and fermentation
208 磁選機 208 Magnetic separator
209 ベルトコンベア  209 belt conveyor
210 一次破砕機  210 Primary crusher
212 トロンメル  212 Trommel
214 高ガウス選別機  214 high gauss sorter
216 アルミニウム選別機  216 Aluminum sorter
218 二次破砕機  218 Secondary crusher
219 換気用風单  219 Ventilation air
220 都巿ゴミ投入口  220 Tokyo Metropolitan Garbage Input Port
222 下水汚泥投入口  222 Sewage sludge inlet
224 戻し分の発酵処理品投入口 224 Fermented processed product inlet for return
226 発酵ガス引出口 226 Fermentation gas outlet
227 空気吹込口  227 Air inlet
228 発酵品取出口  228 Fermented product outlet
229 空気吹き込み風車 230 供給ライン229 Air blowing windmill 230 Supply line
232 戻しライン 232 return line
242 ノ ケットエレ ータ 242 Nocket Era
243 ノ ケットエレくータ243 Nokelekuta
244 ベノレトコンべ'244 Benoleto Comb '
246 ベルトコンペ'246 Belt Competition
248 ノ ケットエレ zくータ248 Noketele z
250 貯蔵ライン 250 storage line

Claims

請求の範囲 The scope of the claims
[I] 廃棄物を発酵処理する好気性発酵装置と、発酵処理した発酵処理品を貯蔵する 貯蔵倉庫とを備えることを特徴とする蒸気発生用燃料製造設備。  [I] A steam-producing fuel production facility comprising an aerobic fermentation apparatus for fermenting waste and a storage warehouse for storing the fermented fermented product.
[2] 前記好気性発酵装置として、ロータリーキルン式発酵装置を用いることを特徴とす る請求項 1記載に記載の蒸気発生用燃料製造設備。  [2] The fuel generating facility for generating steam according to claim 1, wherein a rotary kiln type fermenter is used as the aerobic fermenter.
[3] 前記好気性発酵装置として、内張り煉瓦を撤去したロータリーキルン又はロータリー ドライヤーを用いることを特徴とする請求項 1又は 2に記載の蒸気発生用燃料製造設 備。 [3] The facility for producing fuel for generating steam according to claim 1 or 2, wherein a rotary kiln or a rotary dryer from which a lining brick is removed is used as the aerobic fermentation apparatus.
[4] 前記貯蔵倉庫は、密閉式建屋であることを特徴とする請求項 1、 2又は 3に記載の 蒸気発生用燃料製造設備。  [4] The fuel generating facility for generating steam according to claim 1, 2 or 3, wherein the storage warehouse is a closed building.
[5] 前記貯蔵倉庫にお 1ヽて、前記発酵処理品の嫌気性発酵を抑制することを特徴とす る請求項 1乃至 4のいずれ力に記載の蒸気発生用燃料製造設備。 5. The steam generating fuel production facility according to any one of claims 1 to 4, wherein an anaerobic fermentation of the fermented processed product is suppressed at the storage warehouse.
[6] 前記貯蔵倉庫における前記発酵処理品の最大堆積高を 2m以上、 5m以下とする ことを特徴とする請求項 1乃至 5のいずれかに記載の蒸気発生用燃料製造設備。 6. The fuel generating facility for generating steam according to any one of claims 1 to 5, wherein a maximum deposition height of the fermented processed product in the storage warehouse is 2 m or more and 5 m or less.
[7] 前記貯蔵倉庫内の空気を換気する換気装置、及び該換気装置で換気した空気を 処理する脱臭機を備えることを特徴とする請求項 1乃至 6のいずれかに記載の蒸気 発生用燃料製造設備。 [7] The steam generating fuel according to any one of [1] to [6], further comprising: a ventilator for ventilating the air in the storage warehouse; and a deodorizer for treating the air ventilated by the ventilator. production equipment.
[8] 前記貯蔵倉庫において、該倉庫内の空気中の可燃性ガス濃度をモニターする検 知器を備えることを特徴とする請求項 1乃至 7のいずれかに記載の蒸気発生用燃料 製造設備。  8. The fuel generating facility for generating steam according to any one of claims 1 to 7, wherein the storage warehouse is provided with a detector for monitoring the concentration of combustible gas in the air in the warehouse.
[9] 前記貯蔵倉庫にお 、て、蒸気発生設備で前記発酵処理品を燃料の一部として使 用する際に、該蒸気発生設備での 1日以上 30日間以下の使用量を貯蔵可能である ことを特徴とする請求項 1乃至 8のいずれかに記載の蒸気発生用燃料製造設備。  [9] In the storage warehouse, when the fermented processed product is used as a part of fuel in the steam generation facility, it is possible to store a usage amount of not less than 1 day and not more than 30 days in the steam generation facility. 9. The fuel generating facility for generating steam according to any one of claims 1 to 8, wherein:
[10] 請求項 1乃至 9のいずれかに記載の蒸気発生用燃料製造設備が付設されることを 特徴とする蒸気発生設備。  [10] A steam generating facility comprising the fuel generating facility for generating steam according to any one of claims 1 to 9.
[II] 好気性発酵装置にて廃棄物を発酵処理し、  [II] The waste is fermented in an aerobic fermenter,
該発酵処理した発酵処理品を貯蔵倉庫に貯蔵し、  The fermented processed product is stored in a storage warehouse,
該貯蔵品を、蒸気発生設備に搬入し、 該蒸気発生設備に搬入した発酵処理品を蒸気発生用燃料として使用することを特 徴とする廃棄物の蒸気発生用燃料化方法。 Bring the stored product into a steam generation facility, A method of converting waste to steam generation fuel, characterized in that the fermented product carried into the steam generation facility is used as fuel for steam generation.
[12] 前記好気性発酵装置において、前記廃棄物を 12時間以上好気性発酵処理するこ とを特徴とする請求項 11に記載の廃棄物の蒸気発生用燃料化方法。  12. The method for producing fuel for steam generation according to claim 11, wherein the waste is subjected to an aerobic fermentation treatment for 12 hours or more in the aerobic fermentation apparatus.
[13] 前記貯蔵倉庫にお ヽて、前記発酵処理品の嫌気性発酵を抑制することを特徴とす る請求項 11又は 12に記載の廃棄物の蒸気発生用燃料ィ匕方法。 13. The waste steam generating fuel supply method according to claim 11 or 12, wherein anaerobic fermentation of the fermented processed product is suppressed in the storage warehouse.
[14] 前記貯蔵倉庫全容積に対する、前記貯蔵倉庫に貯蔵する前記発酵処理品の容積 比を 10%以上、 40%以下とすることを特徴とする請求項 11、 12又は 13に記載の廃 棄物の蒸気発生用燃料化方法。 [14] The waste according to claim 11, 12, or 13, wherein a volume ratio of the fermented processed product stored in the storage warehouse to a total volume of the storage warehouse is 10% or more and 40% or less A method of converting fuel to steam generation.
[15] 前記貯蔵倉庫における前記発酵処理品の堆積高を 2m以上、 5m以下とすることを 特徴とする請求項 8乃至 11のいずれかに記載の廃棄物の蒸気発生用燃料化方法。 15. The method for producing fuel for steam generation of waste according to any one of claims 8 to 11, wherein a deposition height of the fermented processed product in the storage warehouse is 2 m or more and 5 m or less.
PCT/JP2006/303266 2006-02-23 2006-02-23 Production facility for steam generation fuel, steam generation facility and method of converting waste to steam generation fuel WO2007096966A1 (en)

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