TWI419847B - Treatment method for high-water content organic waste and treatment apparatus thereof - Google Patents
Treatment method for high-water content organic waste and treatment apparatus thereof Download PDFInfo
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B7/00—Hydraulic cements
- C04B7/36—Manufacture of hydraulic cements in general
- C04B7/43—Heat treatment, e.g. precalcining, burning, melting; Cooling
- C04B7/44—Burning; Melting
- C04B7/4407—Treatment or selection of the fuel therefor, e.g. use of hazardous waste as secondary fuel ; Use of particular energy sources, e.g. waste hot gases from other processes
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/06—Treatment of sludge; Devices therefor by oxidation
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
- C02F11/13—Treatment of sludge; Devices therefor by de-watering, drying or thickening by heating
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- 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
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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
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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
- F26B23/02—Heating arrangements using combustion heating
- F26B23/028—Heating arrangements using combustion heating using solid fuel; burning the dried product
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B25/00—Details of general application not covered by group F26B21/00 or F26B23/00
- F26B25/005—Treatment of dryer exhaust gases
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2290/00—Organisational aspects of production methods, equipment or plants
- C04B2290/20—Integrated combined plants or devices, e.g. combined foundry and concrete plant
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G2206/00—Waste heat recuperation
- F23G2206/20—Waste heat recuperation using the heat in association with another installation
- F23G2206/201—Waste heat recuperation using the heat in association with another installation with an industrial furnace
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B2200/00—Drying processes and machines for solid materials characterised by the specific requirements of the drying good
- F26B2200/18—Sludges, e.g. sewage, waste, industrial processes, cooling towers
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- 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
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/30—Technologies for a more efficient combustion or heat usage
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- 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
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/10—Production of cement, e.g. improving or optimising the production methods; Cement grinding
- Y02P40/121—Energy efficiency measures, e.g. improving or optimising the production methods
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- 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
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- 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
Description
本發明係有關一種高含水率有機系廢棄物的處理方法及處理裝置，尤其有關一種使用水泥煅燒設備將高含水率有機系廢棄物予以乾燥，藉此可將該已乾燥的有機系廢棄物作為水泥煅燒設備的燃料來有效利用，且儘管利用水泥煅燒設備內的抽氣氣體，亦不會影響水泥煅燒設備的作業，並能提升水泥煅燒設備的作業效率之高含水率有機系廢棄物的處理方法及處理裝置。The invention relates to a method and a processing device for treating organic waste with high water content, in particular to a method for drying organic waste with high water content by using a cement calcining device, whereby the dried organic waste can be used as The fuel of the cement calcining equipment is effectively utilized, and although the exhaust gas in the cement calcining equipment is utilized, the operation of the cement calcining equipment is not affected, and the processing of the high moisture content organic waste of the cement calcining equipment can be improved. Method and processing device.
本申請案係依據於2006年11月6日所申請之日本專利申請案第2006－300605號主張優先權，並在此引用其內容。The present application claims priority on the basis of Japanese Patent Application No. 2006-300605, filed on Nov. 6, 2006, which is hereby incorporated by reference.
習知，在水泥煅燒設備的迴轉窯(rotary kiln)中，已使用有機系廢棄物中的廢輪胎和廢塑膠等可燃性廢棄物來代替一部分的燃料。Conventionally, in a rotary kiln of a cement calcining apparatus, a part of fuel has been replaced by waste tires such as waste tires and waste plastics in organic waste.
此外，最近亦使用將最後為可燃燒但含有很多水份的高含水率有機系廢棄物直接投入至迴轉窯，藉此進行燃燒處理之方法。Further, a method of burning the high-moisture organic waste which is finally combustible but contains a lot of water is directly used in the rotary kiln.
作為該高含水率有機系廢棄物，可例舉如下水道污泥等之有機系的含水(脫水)污泥，並已提案有不對此含水污泥施予乾燥與添加添加劑等之前置處理，而是直接導入至迴轉窯的窯尾部或預燒爐予以燃燒之污泥處理方法(專利文獻1)。The organic water-containing (dewatered) sludge such as a sewage sludge is exemplified as the high-water-containing organic waste, and it is proposed that the water-containing sludge is not subjected to pretreatment such as drying and adding an additive. Instead, it is directly introduced into a kiln tail portion of a rotary kiln or a sludge treatment method in which a pre-fired furnace is burned (Patent Document 1).
通常，由於有機系的含水污泥幾乎為水份及有機物所佔有，故經由燃燒而成為殘留物所產生的灰燼量非常的少。因此，即使將有機系的含水污泥直接導入至迴轉窯，亦不會影響水泥燒塊(cement clinker)的成分，而可在迴轉窯內進行燃燒處理。In general, since the organic-based water-containing sludge is almost occupied by water and organic matter, the amount of ash generated as a residue by combustion is extremely small. Therefore, even if the organic aqueous sludge is directly introduced into the rotary kiln, the composition of the cement clinker is not affected, and the combustion treatment can be performed in the rotary kiln.
然而，在將上述有機系的含水污泥直接導入至迴轉窯來燃燒的方法中，會有因為隨著含水污泥中的水份蒸發使迴轉窯的窯尾部中的原料溫度降低、在懸浮式預熱器(suspension preheater)或預燒爐中已經加熱及脫碳(decarbonization)的原料所具有的顯熱會降低、或者水泥原料在燒結成燒塊狀之範圍(窯煅燒範圍)的溫度會降低等，而使水泥煅燒設備的水泥燒塊煅燒能力變得非常低之問題。並且，由於水泥燒塊煅燒時的每單位燒塊的熱量和電力使用量優高，故有難以經濟性地進行作業之虞。However, in the method of directly introducing the organic aqueous sludge into the rotary kiln for combustion, there is a possibility that the temperature of the raw material in the kiln tail portion of the rotary kiln is lowered as the water in the aqueous ash is evaporated, and the suspension is suspended. The sensible heat of the raw material that has been heated and decarbonized in the preheater or the preheating furnace is reduced, or the temperature of the cement raw material in the range of sintering into agglomerates (the range of kiln calcination) is lowered. And so on, the calcination ability of the cement agglomerate of the cement calcining equipment becomes very low. Further, since the amount of heat and electric power used per unit of the block during the calcination of the cement block is excellent, it is difficult to carry out the work economically.
因此，為了降低這種高含水率有機系廢棄物對於水泥煅燒設備的作業之影響，已進行利用來自水泥煅燒設備的燒塊冷卻器的抽氣氣體來直接將高含水率有機系廢棄物予以乾燥之處理，並將已乾燥的有機系廢棄物作為燃料來有效利用(專利文獻2)。Therefore, in order to reduce the influence of such high water content organic waste on the operation of the cement calcining equipment, the exhaust gas of the burnt block cooler from the cement calcining equipment has been used to directly dry the high moisture content organic waste. The treatment is carried out, and the dried organic waste is effectively used as a fuel (Patent Document 2).
第3圖係用以顯示附設有習知的高含水率有機系廢棄物的乾燥處理裝置的水泥製造設備的示意圖，為利用水泥煅燒設備的排放氣體將高含水率有機系廢棄物予以乾燥之裝置的一例。3 is a schematic view showing a cement manufacturing facility with a conventional drying apparatus for high-aqueous organic waste, and a device for drying high-water content organic waste by using exhaust gas of cement calcining equipment. An example.
在第3圖中，符號1為迴轉爐、符號2為懸浮式預熱器(suspension pre－heater)、符號2a至2d為懸浮式預熱器2內各段的旋風分離器(cyclone)、符號3為預燒爐、符號4為燒塊冷卻器、符號5為電性集塵機、符號6為抽風機、符號7為排氣煙囪、符號8a至8c為燒塊冷卻器4的冷卻風扇、符號9為用以抽吸懸浮式預熱器2的排放氣體之抽風機(IDF)、符號10為預燒爐3的二次空氣導管(duct)、符號11為燒塊冷卻器4的排氣導管、符號12為懸浮式預熱器2的排氣導管、符號13為懸浮式預熱器2的原料供給管線。In Fig. 3, reference numeral 1 is a rotary kiln, symbol 2 is a suspension pre-heater, and symbols 2a to 2d are cyclones and symbols of each section in the floating preheater 2. 3 is a pre-baking furnace, the symbol 4 is a block cooler, the symbol 5 is an electric dust collector, the symbol 6 is an exhaust fan, the symbol 7 is an exhaust chimney, and the symbols 8a to 8c are cooling fans of the block cooler 4, symbol 9 An exhaust fan (IDF) for exhausting the exhaust gas of the floating preheater 2, a secondary air duct of the preheating furnace 3, reference numeral 11 is an exhaust duct of the block cooler 4, Reference numeral 12 denotes an exhaust duct of the floating preheater 2, and reference numeral 13 denotes a material supply line of the floating preheater 2.
此外，符號14為乾燥處理裝置，係由下述構件所構成：抽氣導管15，係將燒塊冷卻器4所排出的排放氣體的一部分予以抽氣；乾燥機16，係使用經抽氣的排放氣體將高含水率有機系廢棄物予以乾燥；集塵器17，係對包含有已乾燥的有機系廢棄物的排放氣體進行塵埃之集塵；以及排氣導管18與排氣導入風扇19，係用以將集塵後的排放氣體作為燒塊冷卻器4的冷卻空氣予以再利用。Further, reference numeral 14 denotes a drying processing apparatus which is constituted by a suction duct 15 which evacuates a part of the exhaust gas discharged from the block cooler 4, and a dryer 16 which uses a pumped air. The exhaust gas is used to dry the high-moisture organic waste; the dust collector 17 collects dust from the exhaust gas containing the dried organic waste; and the exhaust duct 18 and the exhaust gas are introduced into the fan 19, It is used to reuse the exhaust gas after the dust collection as the cooling air of the block cooler 4.
以乾燥處理裝置14所獲得的乾燥有機系廢棄物係作為水泥煅燒設備的燃料來有效利用。The dry organic waste obtained by the drying treatment apparatus 14 is effectively utilized as a fuel of a cement calcining apparatus.
即使乾燥後的排放氣體雖包含有大量的臭氣成分等，但藉由將此排放氣體作為高溫燒塊冷卻用空氣導入至水泥煅燒設備的燒塊冷卻器，且將冷卻後的排放氣體作為迴轉窯或預燒爐的燃料燃燒用的二次空氣來利用，則該臭氣成分等會完全地被燃燒分解。Even if the exhaust gas after drying contains a large amount of odor components or the like, the exhaust gas is introduced into the block cooler of the cement calcining apparatus as the high-temperature block cooling air, and the cooled exhaust gas is rotated. When the kiln or the preheating furnace uses secondary air for fuel combustion, the odor component or the like is completely burned and decomposed.
因此，即使在排放氣體包含有大量的臭氣成分等，亦無需用以消除排放氣體中的臭氣成分等特別之除臭裝置。Therefore, even if the exhaust gas contains a large amount of odor components or the like, a special deodorizing device for eliminating odor components in the exhaust gas is not required.
此外，作為未使用使用有上述高溫氣體的直接乾燥方法的高含水率有機系廢棄物的乾燥裝置，已提案有將使用過熱蒸氣循環法的高含水率有機系廢棄物的乾燥裝置附設於水泥煅燒設備者(專利文獻3)。Moreover, as a drying apparatus of the high-water content organic waste which does not use the direct-drying method of the said high-temperature gas, the drying apparatus of the high-water- Equipment (Patent Document 3).
此高含水率有機系廢棄物的乾燥裝置係用以於由高含水率有機系廢棄物所構成的污泥塊中，將已氣流乾燥後的污泥的循環乾燥粉予以混合攪拌並調整水份，以乾燥機內的切碎機將此混合粉切碎後，在乾燥導管內進行乾燥，之後，以旋風分離器予以集塵而獲得乾燥粉。將所獲得之乾燥粉的一定量吹入至水泥煅燒設備的迴轉窯，以作為水泥燒塊煅燒用燃料的一部分來利用。The drying device for the high-water content organic waste is used for mixing and stirring the circulating dry powder of the sludge which has been dried by the airflow in the sludge block composed of the organic waste having high water content and adjusting the moisture. The mixed powder was chopped by a chopper in a dryer, and then dried in a drying duct, and then collected by a cyclone to obtain a dry powder. A certain amount of the obtained dry powder is blown into the rotary kiln of the cement calcining apparatus to be utilized as a part of the fuel for calcining the cement.
在此裝置中，係採用下述方法：以藉由污泥塊的乾燥而產生的排放氣體(水蒸氣)作為乾燥用的熱媒體，並將水泥煅燒設備的高溫部作為用以將上述排放氣體予以間接加熱之排放氣體加熱部，而將上述排放氣體導入至該排放氣體加熱部予以加熱及除臭，將該經過加熱及除臭的排放氣體的一部分在上述切碎機內循環，且將增加的排放氣體量排放至系統外，並且，以熱交換器將經加熱及除臭後的排放氣體的剩餘部分與來自前述乾燥機的旋風分離器的排放氣體予以熱交換，而對來自旋風分離器的排放氣體進行預熱。In this apparatus, a method is employed in which an exhaust gas (water vapor) generated by drying of a sludge block is used as a heat medium for drying, and a high temperature portion of the cement calcining apparatus is used as the exhaust gas. Indirectly heating the exhaust gas heating unit, and introducing the exhaust gas into the exhaust gas heating unit to heat and deodorize, and circulating a part of the heated and deodorized exhaust gas in the chopper, and increasing The amount of exhaust gas is discharged to the outside of the system, and the remaining portion of the heated and deodorized exhaust gas is heat-exchanged with the exhaust gas from the cyclone of the aforementioned dryer by a heat exchanger, and the cyclone separator is supplied. The exhaust gas is preheated.
此外，作為不同於高含水率有機系廢棄物的廢棄物之處理方法，已提案有使用有廢棄物燃料化系統的水泥製造方法，前述廢棄物燃料化系統係利用水泥煅燒設備內的高溫氣體來處理含有鹵素(halogen)的廢棄物(專利文獻4)。Further, as a method of treating wastes different from high-moisture organic waste, a cement production method using a waste fuelification system using a high-temperature gas in a cement calcination apparatus has been proposed. The waste containing halogen is processed (Patent Document 4).
在這種處理方法中，利用從水泥煅燒設備的懸浮式預熱器所抽出的高溫氣體，利用間接加熱使含有鹵素的廢棄物熱分解並去除產生的鹵素化合物，另一方面，將已去除鹵素化合物的可燃氣體及殘留物作為水泥煅燒設備的燃料來有效利用。In this treatment method, the halogen-containing waste is thermally decomposed and the halogen compound produced is removed by indirect heating using a high-temperature gas extracted from a suspension preheater of the cement calcining apparatus, and on the other hand, the halogen has been removed. The combustible gases and residues of the compounds are effectively utilized as fuel for cement calcining equipment.
在該廢棄物燃料化系統中，係使用從懸浮式預熱器所抽出的高溫氣體作為熱源。In the waste fueling system, a high temperature gas extracted from a suspension type preheater is used as a heat source.
通常，作為水泥煅燒設備內的高溫氣體，雖使用從燒塊冷卻器所抽出的高溫空氣與從迴轉窯的窯尾部所抽出的高溫氣體，但若如該廢棄物燃料化系統般使用從懸浮式預熱器所抽出的高溫氣體作為熱源時，對水泥煅燒設備的作業的影響會比較小，且能有效地利用水泥煅燒設備的熱源。Usually, as a high-temperature gas in a cement calcining apparatus, high-temperature air extracted from a block cooler and high-temperature gas extracted from a kiln tail portion of a rotary kiln are used, but if it is used as a waste fueling system, it is suspended. When the high-temperature gas extracted by the preheater is used as a heat source, the impact on the operation of the cement calcining equipment is relatively small, and the heat source of the cement calcining equipment can be effectively utilized.
專利文獻1：日本特開平8－276199號公報專利文獻2：日本特開昭63－151650號公報專利文獻3：日本特開2002－273492號公報專利文獻4：日本特開2006－206386號公報Japanese Patent Laid-Open Publication No. JP-A No. Hei. No. Hei. No. Hei. No. Hei. No. Hei. No. Hei. No. Hei.
然而，在利用從上述專利文獻2的燒塊冷卻器所抽出的氣體直接將高含水率有機系廢棄物予以乾燥之方法中，由於乾燥後的排放氣體含有大量的水蒸氣，故在以燒塊冷卻器進行處理時，該排放氣體所含有的水蒸氣會被導入至迴轉爐與預燒爐，結果，會有用以煅燒每單位水泥燒塊所需的高溫氣體量(氣體原單位)增加之問題。However, in the method of directly drying the high-moisture organic waste by the gas extracted from the block cooler of Patent Document 2, since the exhaust gas after drying contains a large amount of water vapor, it is burned. When the cooler is processed, the water vapor contained in the exhaust gas is introduced into the rotary kiln and the pre-fired furnace, and as a result, there is an increase in the amount of high-temperature gas (gas original unit) required for calcining each unit of the cement block. .
該氣體原單位的增加係有導致水泥燒塊的煅燒量之減少、以及煅燒用熱量(熱耗率)之增加等，而對水泥煅燒設備的作業帶來不良影響之虞。The increase in the original gas unit is caused by a decrease in the amount of calcination of the cement agglomerate and an increase in the calorific value (heat rate) for calcination, which adversely affects the operation of the cement calcining apparatus.
與直接導入至習知的迴轉窯的窯尾部的情形相比，該水泥燒塊的煅燒量之減少與熱耗率之增加對作業的影響度雖停留在20%至40%，但對作業的不良影響卻很大，會有隨著高含水率有機系廢棄物處理的增加而無法獲得需要的水泥生產量等之虞。Compared with the case of directly introducing into the kiln tail of the conventional rotary kiln, the reduction of the calcination amount of the cement block and the increase of the heat rate rate affect the operation although staying at 20% to 40%, but for the operation The adverse effects are very large, and there is a possibility that the required amount of cement production cannot be obtained as the treatment of high-moisture organic waste increases.
此外，在專利文獻3的乾燥方法中，由於利用水泥煅燒設備本體的高溫部來作為用以將乾燥用的熱媒體予以加熱之加熱部(熱交換部)，故能作為加熱部來利用的高溫部會限定於懸浮式預熱器的下部區域及燒塊冷卻器的上游部的高溫部區域等，例如選擇該高溫部區域作為加熱部時，熱媒體會大量地奪走水泥煅燒設備內部的氣體與加熱原料所保有的顯熱。因此，會有使水泥煅燒設備的燒塊煅燒的熱耗率惡化，而導致燒塊煅燒能力的降低之虞這種問題。Further, in the drying method of the patent document 3, the high temperature portion of the main body of the cement calcining apparatus is used as the heating portion (heat exchange portion) for heating the heat medium for drying, so that the high temperature can be utilized as the heating portion. The portion is limited to the lower portion of the suspension preheater and the high temperature portion of the upstream portion of the block cooler. For example, when the high temperature portion is selected as the heating portion, the heat medium largely takes away the gas inside the cement calcining device. The sensible heat retained by the heating material. Therefore, there is a problem that the heat rate of calcination of the calcined material of the cement calcining apparatus is deteriorated, resulting in a decrease in the calcination ability of the calcined block.
同樣地，關於水泥煅燒設備的水泥燒塊的煅燒量之減少與熱耗率之增加，與直接導入至迴轉窯的窯尾部的情形相比，雖然燒塊的煅燒量之減少係停止在40%至50%，但熱耗率的增加係會達至80%。亦即，與利用其他水泥煅燒設備的排放氣體等之方法相比，由於乾燥用熱源大部分係奪取水泥煅燒設備中有用的熱量而成者，故不僅會使水泥煅燒設備中的消耗熱量大幅惡化，且會有隨著高含水率有機系廢棄物處理的增加而無法獲得必要的水泥產生量之虞這樣的問題。Similarly, the reduction in the calcination amount of the cement agglomerate of the cement calcining apparatus and the increase in the heat rate are compared with the case of directly introducing into the kiln tail of the rotary kiln, although the reduction in the calcination amount of the agglomerate is stopped at 40%. Up to 50%, but the increase in heat rate will reach 80%. That is, compared with the method of using other cement calcining equipment, etc., since the heat source for drying mostly captures the useful heat in the cement calcining equipment, not only the heat consumption in the cement calcining equipment is greatly deteriorated. There is a problem that the amount of cement produced is not obtained as the treatment of high-moisture organic waste increases.
此外，在專利文獻4的廢棄物燃料化系統中，由於進行含有鹵素的廢棄物的熱分解及分離係需要將含有鹵素的廢棄物加熱至最大650℃的高溫，故會有用以將該含有鹵素的廢棄物予以熱分解之間接加熱機所導入的高溫氣體的溫度需要設定成更高溫度之問題。Further, in the waste fueling system of Patent Document 4, since the halogen decomposition waste is heated to a maximum temperature of 650 ° C by thermal decomposition and separation of the halogen-containing waste, the halogen-containing waste may be used. The waste is thermally decomposed and the temperature of the high-temperature gas introduced by the heater is required to be set to a higher temperature.
此外，由於為間接加熱，故熱傳達量亦不足夠，且熱交換後的排放氣體的溫度亦在保持在高溫的狀態下返回至懸浮式預熱器，尤其在將高溫狀態的排放氣體匯合至懸浮式預熱器的排氣導管時，會有懸浮式預熱器的排放氣體溫度上升，抽風機(IDF)的氣體處理能力下降，甚至導致水泥煅燒設備的生產能力降低之虞。In addition, since it is indirect heating, the amount of heat transfer is not sufficient, and the temperature of the exhaust gas after heat exchange is returned to the floating preheater while maintaining the high temperature, especially when the exhaust gas at a high temperature is merged to In the exhaust duct of the suspension preheater, the temperature of the exhaust gas of the floating preheater rises, the gas treatment capacity of the exhaust fan (IDF) decreases, and even the production capacity of the cement calcining equipment is lowered.
此外，由於並未再利用已抽氣的高溫氣體的顯熱而從懸浮式預熱器予以排出，故水泥煅燒的熱耗率亦會惡化。In addition, since the sensible heat of the pumped high-temperature gas is not reused from the suspension type preheater, the heat rate of cement calcination is also deteriorated.
如此，在專利文獻2至4的處理方法和系統中，在使用水泥煅燒設備對高含水率有機系廢棄物進行燃燒處理時，會有對水泥煅燒設備的作業帶來不良影響之虞。因此，期待一種能有效地將使高含水率有機系廢棄物乾燥後所獲得的乾燥有機系廢棄物作為水泥煅燒設備的燃料來有效利用，且在利用從水泥煅燒設備所取出的熱源來進行乾燥時，亦完全不會對水泥煅燒設備的作業造成影響之高含水率有機系廢棄物的處理方法。As described above, in the processing methods and systems of Patent Documents 2 to 4, when the high-moisture organic waste is subjected to combustion treatment using a cement calcining apparatus, there is a possibility that the operation of the cement calcining apparatus is adversely affected. Therefore, it is expected that a dry organic waste obtained by drying a high-moisture organic waste can be effectively utilized as a fuel for a cement calcining apparatus, and dried by using a heat source taken out from a cement calcining apparatus. At the same time, there is no treatment method for high-water content organic waste that affects the operation of cement calcining equipment.
本發明乃有鑑於上述課題而研創者，其目的在於提供一種使用水泥煅燒設備來對下水道污泥這種高含水率有機系廢棄物進行乾燥，藉此能將該乾燥後的有機系廢棄物作為水泥煅燒設備的燃料來有效利用，且不會有影響水泥煅燒設備的操作之虞，並可提升水泥煅燒設備的操作效率之高含水率有機系廢棄物的處理方法及處理裝置。The present invention has been made in view of the above problems, and an object of the present invention is to provide a method for drying organic wastewater having a high water content, such as sewage sludge, using a cement calcining apparatus, whereby the dried organic waste can be used as The fuel calcining equipment fuel is effectively utilized, and there is no treatment method and processing device for high-water content organic waste which can affect the operation of the cement calcining equipment and can improve the operation efficiency of the cement calcining equipment.
為了解決上述課題，本發明人等不斷地致力於研究的結果，因而發現使用與從水泥煅燒設備所分取出的高溫氣體進行過熱交換的熱媒體，將高含水率有機系廢棄物予以乾燥以作為乾燥有機系廢棄物，並將此乾燥後的熱媒體再次與高溫氣體進行熱交換而循環利用於高含水率有機系廢棄物的乾燥，並且，將此乾燥有機系廢棄物供給至水泥煅燒設備或燃燒裝置予以燃燒，藉此能將此乾燥有機系廢棄物作為水泥煅燒設備的燃料來有效利用，且能將燃燒後的殘留物作為水泥燒塊原料來使用，而不會影響水泥煅燒設備的操作及水泥品質，從而完成本發明。In order to solve the above problems, the inventors of the present invention have been working on the results of research, and have found that high-moisture organic waste is dried by using a heat medium that exchanges heat with a high-temperature gas taken out from a cement calcining apparatus. The organic waste is dried, and the dried heat medium is again subjected to heat exchange with the high temperature gas to be recycled to the drying of the high moisture content organic waste, and the dry organic waste is supplied to the cement calcining equipment or The combustion device is burned, whereby the dry organic waste can be effectively utilized as a fuel for the cement calcining equipment, and the burned residue can be used as a cement block raw material without affecting the operation of the cement calcining equipment. And the quality of the cement to complete the present invention.
亦即，本發明的高含水率有機系廢棄物的處理方法係使用水泥煅燒設備來將高含水率有機系廢棄物進行燃料化及燃燒處理之處理方法，其特徵為具備有：乾燥步驟，係使用與從前述水泥煅燒設備所分取出的高溫氣體進行過熱交換的熱媒體來將前述高含水率有機系廢棄物進行乾燥以作為乾燥有機系廢棄物，並將此乾燥後的熱媒體再次與前述高溫氣體進行熱交換，而循環利用於前述高含水率有機系廢棄物的乾燥；以及燃燒步驟，係將此乾燥有機系廢棄物供給至前述水泥煅燒設備或燃燒裝置進行燃燒。That is, the method for treating high-moisture organic waste according to the present invention is a treatment method for fueling and burning a high-water content organic waste using a cement calcining apparatus, and is characterized in that: a drying step is provided The high-moisture organic waste is dried by using a heat medium exchanged with a high-temperature gas taken out from the cement calcining apparatus to dry the organic waste, and the dried heat medium is again described above. The high-temperature gas is subjected to heat exchange for recycling to the drying of the high-moisture organic waste, and the combustion step is to supply the dry organic waste to the cement calcining apparatus or the combustion apparatus for combustion.
在這種高含水率有機系廢棄物的處理方法中，由於使用與從水泥煅燒設備所分取出的高溫氣體進行過熱交換的熱媒體來將高含水率有機系廢棄物進行乾燥以作為乾燥有機系廢棄物，故藉該乾燥所產生的排放氣體僅為水蒸氣，因此，即使以水泥煅燒設備來處理該排放氣體時，亦不會有影響水泥煅燒設備的作業之虞，且乾燥有機系廢棄物係作為水泥煅燒設備的燃料而有效地利用。In the treatment method of the high-water content organic waste, the high-moisture organic waste is dried as a dry organic system by using a heat medium that exchanges heat with a high-temperature gas taken out from the cement calcining apparatus. Waste, so the exhaust gas generated by the drying is only water vapor. Therefore, even if the exhaust gas is treated by the cement calcining equipment, there is no impact on the operation of the cement calcining equipment, and the dry organic waste It is effectively utilized as a fuel for cement calcining equipment.
並且，由於將乾燥後的熱媒體再次與高溫氣體進行熱交換而循環利用於高含水率有機系廢棄物的乾燥，故熱媒體係有效率且有效地再利用，故不會浪費。Further, since the dried heat medium is again exchanged with the high-temperature gas and recycled for drying of the high-moisture organic waste, the heat medium is efficiently and effectively reused, so that it is not wasted.
本發明的高含水率有機系廢棄物的處理方法，其特徵為前述燃燒步驟係將前述乾燥有機系廢棄物供給至前述水泥煅燒設備的迴轉窯、預燒爐、以及懸浮式預熱器中的一處以上以進行燃燒之步驟。The method for treating high-moisture organic waste according to the present invention is characterized in that the burning step is performed by supplying the dry organic waste to a rotary kiln, a pre-baking furnace, and a suspension preheater of the cement calcining apparatus. More than one step to carry out the combustion.
在本發明的高含水率有機系廢棄物的處理方法中，由於將乾燥有機系廢棄物供給至水泥煅燒設備的迴轉窯、預燒爐、以及懸浮式預熱器中的一處以上以進行燃燒，故能將所獲得的乾燥有機系廢棄物作為水泥燒塊煅燒用燃料來有效地利用，且由於已經過乾燥，故不會影響水泥煅燒設備的作業。In the method for treating high-moisture organic waste according to the present invention, the dry organic waste is supplied to one or more of the rotary kiln, the pre-fired furnace, and the suspension preheater of the cement calcining apparatus for combustion. Therefore, the obtained dry organic waste can be effectively utilized as a fuel for calcination of cement agglomerates, and since it has been dried, it does not affect the operation of the cement calcining equipment.
本發明的高含水率有機系廢棄物的處理方法，其特徵為前述高溫氣體係從前述水泥煅燒設備的懸浮式預熱器的各段的旋風分離器氣體出口部的任一處以上經過抽氣所獲得之高溫氣體；前述乾燥後的熱媒體係為對前述高含水率有機系廢棄物進行乾燥而藉此產生的過熱蒸氣。The method for treating high-moisture organic waste according to the present invention is characterized in that the high-temperature gas system is evacuated from any part of the cyclone gas outlet portion of each stage of the suspension preheater of the cement calcining apparatus. The obtained high-temperature gas; the heat medium after drying is a superheated vapor generated by drying the high-moisture-content organic waste.
在本發明的高含水率有機系廢棄物的處理方法中，將從水泥煅燒設備所分取出的高溫氣體作為從水泥煅燒設備的懸浮式預熱器的各段的旋風分離器氣體出口部的任一處以上進行抽氣所獲得的高溫氣體，藉此增加水泥煅燒裝置的流通氣體量，並可提升水泥煅燒裝置的水泥燒塊煅燒能力。In the method for treating high-moisture organic waste according to the present invention, the high-temperature gas taken out from the cement calcining apparatus is used as the cyclone gas outlet portion of each section of the suspension preheater from the cement calcining apparatus. One or more high-temperature gases obtained by pumping, thereby increasing the amount of gas flowing through the cement calcining device, and improving the calcination ability of the cement block of the cement calcining device.
並且，將藉由對高含水率有機系廢棄物進行乾燥而產生的過熱蒸氣作為乾燥後的熱媒體，藉此能將直接使用於乾燥處理的熱媒體抑制到最低限度，且不會影響水泥煅燒設備的作業。Further, the superheated steam generated by drying the high-moisture organic waste is used as a heat medium after drying, whereby the heat medium directly used for the drying treatment can be minimized without affecting the cement calcination. The operation of the equipment.
本發明的高含水率有機系廢棄物的處理方法，其特徵為前述高溫氣體係從前述水泥煅燒設備的懸浮式預熱器所排出的排放氣體、以及從前述水泥煅燒設備的燒塊冷卻器所抽氣的抽氣氣體中的任一種或兩種的氣體；前述乾燥後的熱媒體係為對前述高含水率有機系廢棄物進行乾燥而藉此產生的過熱蒸氣。The method for treating high-water content organic waste according to the present invention is characterized in that the high-temperature gas system discharges the exhaust gas from the suspension type preheater of the cement calcining apparatus, and the burnt block cooler from the cement calcining apparatus Any one or two of the pumped exhaust gases; and the dried heat medium is superheated steam generated by drying the high-moisture organic waste.
在本發明的高含水率有機系廢棄物的處理方法中，係將從水泥煅燒設備的懸浮式預熱器所排出的排放氣體、以及從水泥煅燒設備的燒塊冷卻器所抽氣的抽氣氣體中的任一種或兩種氣體作為從水泥煅燒設備所分取出的高溫氣體，故不會有因為利用高溫氣體而影響水泥煅燒設備的作業之虞。In the method for treating high-water content organic waste according to the present invention, the exhaust gas discharged from the suspension type preheater of the cement calcining apparatus and the pumping gas from the block cooler of the cement calcining apparatus are evacuated. Any one or two of the gases are used as the high-temperature gas taken out from the cement calcining apparatus, so that there is no possibility of affecting the operation of the cement calcining apparatus by using the high-temperature gas.
並且，將藉由對高含水率有機系廢棄物進行乾燥而產生的過熱蒸氣作為乾燥後的熱媒體，藉此能將使用於乾燥處理的氣體量抑制到最低限度，且無不會影響水泥煅燒設備的作業。Further, by using the superheated steam generated by drying the high-moisture organic waste as a heat medium after drying, the amount of gas used for the drying treatment can be minimized without affecting the cement calcination. The operation of the equipment.
本發明的高含水率有機系廢棄物的處理方法，其特徵為將前述過熱蒸氣的一部分予以抽氣並施予除臭處理後，導入至前述水泥煅燒設備。A method for treating a high water content organic waste according to the present invention is characterized in that a part of the superheated steam is evacuated and subjected to a deodorizing treatment, and then introduced into the cement calcining apparatus.
在本發明的高含水率有機系廢棄物的處理方法中，藉由將過熱蒸氣的一部分予以抽氣並施予除臭處理後予以導入至水泥煅燒設備，而例如在導入至懸浮式預熱器排氣系統的情形等時，能完全解決因導入過熱蒸氣而影響水泥煅燒設備的作業，結果，在水泥煅燒設備的件業中能顯著地呈現前述各段旋風分離器氣體出口部的抽氣所導致的水泥燒塊煅燒能力之提升。In the method for treating high-moisture organic waste according to the present invention, a part of the superheated steam is evacuated and subjected to a deodorizing treatment, and then introduced into a cement calcining apparatus, for example, introduced into a suspension preheater. In the case of the exhaust system, etc., the operation of the cement calcining equipment due to the introduction of the superheated steam can be completely solved, and as a result, the pumping station of the gas outlet portion of each of the aforementioned cyclone separators can be remarkably exhibited in the material of the cement calcining equipment. The resulting cement block burning capacity is improved.
本發明的高含水率有機系廢棄物的處理方法，其特徵為將前述過熱蒸氣的一部分直接導入至前述水泥煅燒設備的800℃以上的地方。A method for treating a high water content organic waste according to the present invention is characterized in that a part of the superheated steam is directly introduced into a place of 800 ° C or higher of the cement calcining facility.
在本發明的高含水率有機系廢棄物的處理方法中，藉由將過熱蒸氣的一部分直接導入至水泥煅燒設備的800℃以上的地方，而使所導入的過熱蒸氣僅為乾燥時所產生的量，對水泥煅燒設備的作業之影響非常的小，且藉由提升前述各段旋風分離器氣體出口部的抽器所產生的水泥燒塊煅燒能力，而可充份地抵銷對水泥煅燒設備作業的影響。In the method for treating high-moisture organic waste according to the present invention, a part of the superheated steam is directly introduced into the cement calcining apparatus at a temperature of 800 ° C or more, so that the introduced superheated steam is only generated when it is dried. The amount of the cement calcination equipment has a very small impact, and can fully offset the cement calcining equipment by increasing the calcination capacity of the cement block produced by the pump at the gas outlet of each of the aforementioned cyclone separators. The impact of the job.
本發明的高含水率有機系廢棄物的處理裝置係使用水泥煅燒設備來將高含水率有機系廢棄物進行燃料化及燃燒處理之處理裝置，其特徵為具備有：熱交換手段，係在從前述水泥煅燒設備所分取出的高溫氣體與熱媒體之間進行熱交換；乾燥處理手段，係使用該已熱交換的熱媒體來對前述高含水率有機系廢棄物進行乾燥以作為乾燥有機系廢棄物；循環管線，係使該乾燥後的熱媒體在前述熱交換手段與前述乾燥處理手段之間循環；以及供給管線，係將前述乾燥有機系廢棄物供給至前述水泥煅燒設備或燃燒裝置。The apparatus for treating a high water content organic waste according to the present invention is a treatment apparatus for fueling and burning a high water content organic waste using a cement calcining apparatus, and is characterized in that: a heat exchange means is provided The high-temperature gas extracted by the cement calcining apparatus is heat-exchanged with the heat medium; the drying treatment means drying the high-moisture organic waste by using the heat-exchanged heat medium to be discarded as a dry organic system. The circulation line is configured to circulate the dried heat medium between the heat exchange means and the drying treatment means, and the supply line to supply the dry organic waste to the cement calcining apparatus or the combustion apparatus.
在本發明的高含水率有機系廢棄物的處理裝置中，係使用熱交換手段在從水泥煅燒設備所分取出的高溫氣體與熱媒體之間進行熱交換，且藉由乾燥處理手段，使用該已熱交換的熱媒體來將高含水率有機系廢棄物進行乾燥以作為乾燥有機系廢棄物，並藉由供給管線將該乾燥有機系廢棄物供給至水泥煅燒設備或燃燒裝置，以進行燃燒處理。In the apparatus for treating high-moisture organic waste according to the present invention, heat exchange is performed between the high-temperature gas taken out from the cement calcining apparatus and the heat medium by means of heat exchange means, and the drying treatment means is used. The heat exchanged heat medium is used to dry the high moisture content organic waste as dry organic waste, and the dry organic waste is supplied to the cement calcining equipment or the combustion device through the supply line for combustion treatment. .
藉此，不會有影響水泥煅燒設備的作業之虞，且能提升水泥燒塊的煅燒能力。Thereby, there is no impact on the operation of the cement calcining equipment, and the calcination ability of the cement agglomerate can be improved.
並且，由於有效地利用從水泥煅燒裝置所排出的排放氣體所具有的顯熱，故所獲得的乾燥有機系廢棄物係作為水泥煅燒設備的燃料來有效利用。Further, since the sensible heat of the exhaust gas discharged from the cement calcining apparatus is effectively utilized, the obtained dry organic waste is effectively utilized as a fuel for the cement calcining apparatus.
此外，藉由循環管線將乾燥後的熱媒體再次與高溫氣體進行熱交換而循環利用於高含水率有機系廢棄物的乾燥，故可有效率且有效地再利用熱媒體。Further, the dried heat medium is again subjected to heat exchange with the high-temperature gas by the circulation line to be recycled to the high-moisture organic waste, so that the heat medium can be reused efficiently and efficiently.
本發明的高含水率有機系廢棄物的處理裝置，其特徵為具備有除臭處理手段，係將前述乾燥手段所產生的過熱蒸氣的一部分予以抽氣，並對已抽氣的過熱蒸氣施予除臭處理。The apparatus for treating high-moisture organic waste according to the present invention is characterized in that the deodorizing treatment means is provided, and a part of the superheated steam generated by the drying means is evacuated, and the superheated steam which has been evacuated is supplied. Deodorization treatment.
在本發明的高含水率有機系廢棄物的處理裝置中，藉由除臭處理手段，將乾燥手段所產生的過熱蒸氣的一部分予以抽氣，並對此已抽氣的過熱蒸氣施予除臭處理。如此，能僅將已去除臭氣成分的高溫水蒸氣予以供給處理至水泥煅燒設備的懸浮式預熱器排氣系統等，且不會產生伴隨處理時對水泥煅燒設備的作業之影響。In the apparatus for treating high-moisture organic waste according to the present invention, a part of the superheated steam generated by the drying means is evacuated by the deodorizing treatment means, and the exhausted superheated steam is deodorized. deal with. In this way, only the high-temperature steam from which the odor component has been removed can be supplied to the suspension preheater exhaust system of the cement calcining apparatus or the like without causing an influence on the operation of the cement calcining apparatus accompanying the treatment.
本發明的高含水率有機系廢棄物的處理裝置，其特徵為具備有除臭處理管線，係將前述乾燥手段所產生的過熱蒸氣的一部分予以抽氣，並將該已抽氣的過熱蒸氣直接導入至前述水泥煅燒設備的800℃以上的地方以進行除臭處理。The apparatus for treating high-moisture organic waste according to the present invention is characterized in that the deodorizing treatment line is provided, and a part of the superheated steam generated by the drying means is evacuated, and the exhausted superheated steam is directly supplied It is introduced to a place above 800 ° C of the aforementioned cement calcining equipment for deodorization treatment.
在本發明的高含水率有機系廢棄物的處理裝置中，藉由除臭處理管線將乾燥手段所產生的過熱蒸氣的一部分予以抽氣，並直接導入至水泥煅燒設備的800℃以上的地方以進行已抽氣的過熱蒸氣的除臭處理，即使是簡易的過熱蒸氣的除臭處理，亦能有效率地處理高含水率有機系廢棄物。In the apparatus for treating high-moisture organic waste according to the present invention, a part of the superheated steam generated by the drying means is evacuated by the deodorizing treatment line, and is directly introduced into the cement calcining apparatus at a temperature of 800 ° C or more. The deodorization treatment of the exhausted superheated steam can efficiently treat the organic waste having a high water content even in the simple deodorization treatment of the superheated steam.
本發明的高含水率有機系廢棄物的處理裝置，其特徵為具備有管線，係將前述水泥煅燒設備的懸浮式預熱器的各段旋風分離器氣體出口部的任一地方以上所分取出的抽氣氣體作為高溫氣體而導入至前述熱交換手段。The apparatus for treating high-moisture organic waste according to the present invention is characterized in that it is provided with a pipeline for taking out any part of the cyclone gas outlet portion of each stage of the suspension type preheater of the cement calcining equipment. The exhaust gas is introduced into the heat exchange means as a high temperature gas.
在本發明的高含水率有機系廢棄物的處理裝置中，藉由用以導入至高溫氣體的熱交換手段之管線，從水泥煅燒設備的懸浮式預熱器的各段旋風分離器氣體出口部的任一地方以上將高溫氣體予以分取出，藉此可謀求水泥煅燒設備的通風能力之提升，故不會有因該高含水率有機系廢棄物的處理裝置之運作為要因而導致水泥燒塊煅燒能力等惡化之虞，且能有效率地處理高含水率有機系廢棄物。In the treatment apparatus for high-moisture organic waste of the present invention, the gas outlet portion of each section of the cyclone separator of the suspension preheater of the cement calcining apparatus is used by a line for introducing heat to a high-temperature gas. In any place or above, the high-temperature gas is taken out, whereby the ventilation capacity of the cement calcining equipment can be improved, so that the operation of the high-water content organic waste treatment device does not result in cement burning. The calcination ability and the like are deteriorated, and the organic waste having a high water content can be efficiently treated.
本發明的高含水率有機系廢棄物的處理裝置，其特徵為具備有用以將前述水泥煅燒設備的懸浮式預熱器的排放氣體作為高溫氣體而導入至前述熱交換手段之管線、以及用以將從前述水泥煅燒設備的燒塊冷卻器所抽氣的抽氣氣體作為高溫氣體導入至前述熱交換手段之管線之任一方或雙方。The apparatus for treating a high water content organic waste according to the present invention is characterized by comprising a line for introducing an exhaust gas of a suspension type preheater of the cement calcining apparatus into the heat exchange means as a high temperature gas, and The exhaust gas extracted from the block cooler of the cement calcining apparatus is introduced as a high-temperature gas into either or both of the lines of the heat exchange means.
在本發明的高含水率有機系廢棄物的處理裝置中，藉由具備有用以將從懸浮式預熱器所分取出的排放氣體作為高溫氣體而導入至熱交換手段之管線、以及用以將從燒塊冷卻器所抽氣的抽氣氣體作為高溫氣體導入至熱交換手段之管線之任一方或雙方，而可將從懸浮式預熱器所分取出的排放氣體或從燒塊冷卻器所抽氣的抽氣氣體作為高溫氣體來利用，且藉由將熱交換後的高溫氣體再次使用於水泥原料的乾燥等，而能有效率且有效地進行利用，且可消除對於水泥煅燒設備的作業之影響。In the apparatus for treating high-moisture organic waste according to the present invention, a line for introducing the exhaust gas taken out from the suspension preheater into the heat exchange means as a high-temperature gas is provided, and The exhaust gas pumped from the block cooler is introduced into one or both of the lines of the high-temperature gas to the heat exchange means, and the exhaust gas taken out from the suspension type preheater or from the block cooler The pumped exhaust gas is used as a high-temperature gas, and the high-temperature gas after the heat exchange is reused in the drying of the cement raw material, etc., and can be utilized efficiently and efficiently, and the work for the cement calcining apparatus can be eliminated. The impact.
依據本發明的高含水率有機系廢棄物的處理方法，由於使用與從水泥煅燒設備所分取出的高溫氣體作熱交換的熱媒體來將高含水率有機系廢棄物進行乾燥以作為乾燥有機系廢棄物，故不會有影響水泥煅燒設備的作業之虞，且能將所獲得的乾燥有機系廢棄物作為水泥煅燒設備的燃料來有效利用。According to the method for treating high-moisture organic waste according to the present invention, high-moisture organic waste is dried as a dry organic system by using a heat medium which exchanges heat with a high-temperature gas taken out from the cement calcining apparatus. The waste does not affect the operation of the cement calcining equipment, and the obtained dry organic waste can be effectively utilized as a fuel for the cement calcining equipment.
此外，由於將乾燥後的熱媒體再次與高溫氣體進行熱交換，並循環利用於高含水率有機系廢棄物的乾燥，故能有效地再利用熱媒體。Further, since the dried heat medium is again exchanged with the high-temperature gas and recycled for drying of the high-moisture organic waste, the heat medium can be reused efficiently.
依據本發明的高含水率有機系廢棄物的處理裝置，由於具備有：用以在從水泥煅燒設備所分取出的高溫氣體與熱媒體之間進行熱交換之熱交換手段、使用該已熱交換的熱媒體將前述高含水率有機系廢棄物進行乾燥以作為乾燥有機系廢棄物之乾燥處理手段、使該乾燥後的熱媒體在前述熱交換手段與前述乾燥處理手段之間循環之循環管線、以及用以將前述乾燥有機系廢棄物供給至前述水泥煅燒設備或燃燒裝置之供給管線，故能有效地利用從水泥煅燒設備所排出的排氣氣體所具有的顯熱，且沒有影響水泥煅燒設備的操作之虞，並能提升水泥煅燒設備的水泥燒塊的煅燒能力。According to the apparatus for treating high-water-containing organic waste according to the present invention, there is provided a heat exchange means for performing heat exchange between a high-temperature gas taken out from a cement calcining apparatus and a heat medium, and the heat exchange is used. The heat medium is used to dry the high-moisture organic waste as a drying treatment means for drying the organic waste, and a circulation line for circulating the dried heat medium between the heat exchange means and the drying means, And a supply line for supplying the dry organic waste to the cement calcining equipment or the combustion device, so that the sensible heat of the exhaust gas discharged from the cement calcining equipment can be effectively utilized without affecting the cement calcining equipment After the operation, it can improve the calcination capacity of the cement agglomerate of the cement calcining equipment.
並且，由於將乾燥後的熱媒體再次與高溫氣體進行熱交換而循環利用於高含水率有機系廢棄物的乾燥，故能有效地再利用熱媒體。Further, since the dried heat medium is again exchanged with the high-temperature gas and recycled for drying of the high-moisture organic waste, the heat medium can be reused efficiently.
根據附圖，說明本發明高含水率有機系廢棄物的處理方法及處理裝置的較佳形態。Preferred embodiments of the method and apparatus for treating high-moisture organic waste according to the present invention will be described with reference to the accompanying drawings.
本實施形態係用以使閱讀者更充分地理解本發明的旨趣而具體說明者，只要記載中未有特別的指定，即非用以限定本發明。This embodiment is intended to provide a more complete understanding of the present invention by the reader, and is not intended to limit the invention unless otherwise specified.
第1圖係顯示附設有本發明第一實施形態的高含水率有機系廢棄物的處理裝置的水泥煅燒設備之示意圖，且為使用有機污泥作為高含水率有機系廢棄物，並利用來自水泥煅燒設備的排放氣體或已抽氣的高溫氣體來將該有機污泥予以乾燥使其燃料化，且使用水泥煅燒設備將所獲得的乾燥有機污泥進行燃燒處理之處理裝置之例。1 is a schematic view showing a cement calcining apparatus with a treatment apparatus for high-moisture organic waste according to a first embodiment of the present invention, and uses organic sludge as a high-water content organic waste and uses cement from cement. An example of a treatment apparatus for performing combustion treatment of the obtained dried organic sludge by using the exhaust gas of the calcining apparatus or the exhausted high-temperature gas to dry the organic sludge to be fueled, and using the cement calcining apparatus.
在第1圖中，有機污泥處理裝置21係由下列所構成：熱交換器(熱交換手段)22，係在從水泥煅燒設備的懸浮式預熱器2所分取出的排放氣體(高溫氣體)與蒸氣(熱媒體)之間進行熱交換；乾燥機(乾燥處理手段)23，係使用已熱交換的過熱蒸氣(熱媒體)將有機污泥予以乾燥以作成乾燥有機污泥；除臭器(除臭處理手段)24，係對過熱蒸氣施予除臭處理；給料斗(hopper)25，係儲存乾燥有機污泥；高溫氣體抽氣導管(管線)26；排氣導管(管線)27；過熱蒸氣管線(循環管線)28；過熱蒸氣管線(抽氣管線)29；有機污泥供給管線30，係將有機污泥供給至乾燥機23；以及供給管線31，係將乾燥有機污泥供給至預燒爐3。In Fig. 1, the organic sludge treatment device 21 is composed of a heat exchanger (heat exchange means) 22 which is an exhaust gas (high temperature gas) taken out from the suspension type preheater 2 of the cement calcining apparatus. Heat exchange with steam (heat medium); dryer (drying means) 23, using organic heat exchange steam (heat medium) to dry the organic sludge to make dry organic sludge; deodorizer (deodorization treatment means) 24, applying deodorization treatment to superheated steam; a hopper 25 for storing dry organic sludge; a high temperature gas extraction conduit (line) 26; an exhaust conduit (line) 27; a superheated steam line (circulation line) 28; a superheated steam line (exhaust line) 29; an organic sludge supply line 30 for supplying organic sludge to the dryer 23; and a supply line 31 for supplying dry organic sludge to Pre-burning furnace 3.
藉由該有機污泥處理裝置21，在將有機污泥進行乾燥/燃燒處理時，將從懸浮式預熱器2第二段的旋風分離器2b的氣體出口部所分取出的高溫氣體與循環於熱蒸氣管線28的蒸氣(熱媒體)導入至熱交換器22，並藉由高溫氣體將蒸氣加熱以作為過熱蒸氣(熱媒體)。By the organic sludge treatment device 21, when the organic sludge is subjected to drying/burning treatment, the high-temperature gas and the cycle taken out from the gas outlet portion of the cyclone 2b of the second stage of the suspension type preheater 2 are circulated. The vapor (heat medium) in the hot steam line 28 is introduced to the heat exchanger 22, and the steam is heated by the high temperature gas as the superheated vapor (heat medium).
經由過熱蒸氣管線28將該過熱蒸氣導入至乾燥機23內，在該乾燥機23內將從有機污泥供給管線30所導入的有機污泥予以乾燥以作成乾燥有機污泥。此乾燥有機污泥係暫時儲存在給料斗25，之後藉由供給管線31將乾燥有機污泥作為燃料供給至預燒爐3並進行燃燒處理。The superheated steam is introduced into the dryer 23 via the superheated steam line 28, and the organic sludge introduced from the organic sludge supply line 30 is dried in the dryer 23 to form a dry organic sludge. This dry organic sludge is temporarily stored in the hopper 25, and then the dried organic sludge is supplied as fuel to the pre-burning furnace 3 by the supply line 31 and subjected to combustion treatment.
在該有機污泥處理裝置21中，係利用對從懸浮式預熱器2最上段的旋風分離器2a算起第二段的旋風分離器2b的出口氣體進行抽氣之高溫氣體，並採用藉由已熱交換的蒸氣來進行之乾燥方法(亦即，使用過熱蒸氣循環法之乾燥方法)，藉此謀求有效利用水泥煅燒設備內的高溫氣體以及水泥煅燒設備的效率化。In the organic sludge treatment device 21, the high-temperature gas for pumping the outlet gas of the cyclone separator 2b of the second stage from the cyclone separator 2a of the uppermost stage of the suspension type preheater 2 is used. The drying method by the heat-exchanged steam (that is, the drying method using the superheated steam circulation method) is utilized to effectively utilize the high-temperature gas in the cement calcining apparatus and the efficiency of the cement calcining apparatus.
在此，說明旋風分離器2a至2d的抽氣位置之選定。Here, the selection of the pumping position of the cyclones 2a to 2d will be described.
例如，在從第二段的旋風分離器2b的出口對排放氣體進行抽氣的情形下，雖該旋風分離器2b出口的排放氣體的有效利用度較低，但倒不如說是由於進行抽氣使得懸浮式預熱器2的排放氣體溫度降低，而補償已抽氣的排放氣體所導致的熱量損失，且也不會有熱耗率之增加。For example, in the case where the exhaust gas is evacuated from the outlet of the cyclone 2b of the second stage, although the effective utilization of the exhaust gas at the outlet of the cyclone 2b is low, it is rather due to pumping. The temperature of the exhaust gas of the floating preheater 2 is lowered, and the heat loss caused by the exhausted exhaust gas is compensated, and there is no increase in the heat rate.
同時，已抽氣的排放氣體亦會因為乾燥機23中的熱交換而降低溫度，而使得用以抽吸已與來自懸浮式預熱器2的排放氣體匯流的氣體之抽風機(IDF)9的通風能力增大。At the same time, the exhausted exhaust gas also lowers the temperature due to the heat exchange in the dryer 23, so that the exhaust fan (IDF) 9 for sucking the gas that has flowed with the exhaust gas from the floating preheater 2 is caused. The ventilation capacity is increased.
如此，會提高水泥煅燒設備的燒塊煅燒能力。亦會有因為該燒塊煅燒能力的提升而改善熱耗率之情形。In this way, the calcination ability of the cement calcining equipment is improved. There is also a situation in which the heat rate is improved due to an increase in the calcination ability of the block.
雖然隨著排放氣體位置設置在越下段越能提升燒塊煅燒能力，但在下段的旋風分離器中，因抽氣氣體所導致的熱量損失量會增加，使得對熱耗率的影響也會逐漸增加，因而減少水泥煅燒設備的燒塊煅燒能力的上升率。因此，用以抽氣的旋風分離器較佳為第二段的旋風分離器2b，次佳為第三段的旋風分離器2c。Although the calcination capacity of the agglomerate can be increased as the position of the exhaust gas is set in the lower part, in the cyclone separator of the lower stage, the amount of heat loss due to the pumping gas will increase, so that the influence on the heat rate will gradually increase. Increase, thus reducing the rate of increase in calcination capacity of the cement calcining equipment. Therefore, the cyclone for pumping is preferably the second stage cyclone 2b, and the second stage is the third stage cyclone 2c.
並且，即使利用來自最上段的旋風分離器2a出口的排放氣體，亦能獲得上述效果。該情形中，用以從該旋風分離器2a將排放氣體進行抽氣之抽氣裝置需設定成不會增加對於懸浮式預熱器2的排放氣體之通風阻抗，而作為其對策，有於懸浮式預熱器2的排氣導管12附設熱交換器等。Further, the above effects can be obtained even by using the exhaust gas from the outlet of the uppermost cyclone 2a. In this case, the air extracting means for extracting the exhaust gas from the cyclone 2a is set so as not to increase the ventilation resistance of the exhaust gas to the floating preheater 2, and as a countermeasure, it is suspended. The exhaust duct 12 of the preheater 2 is provided with a heat exchanger or the like.
從第二段的旋風分離器2b的氣體出口部所抽氣的高溫氣體之溫度通常為550℃至650℃的範圍。此高溫氣體係可從未混合有從水泥粉末原料的原料供給管線13所導入的粉末原料之位置來進行抽氣所獲得。由於應乾燥的有機污泥的含水量為80重量%左右，故抽氣的高溫氣體量須為足以使該有機污泥所含有的水分蒸發以作成過熱蒸氣所需要的熱量之量。亦即，每1kg有機污泥通常需要抽氣4Nm3 至8Nm3 的氣體量。The temperature of the high-temperature gas sucked from the gas outlet portion of the cyclone separator 2b of the second stage is usually in the range of 550 ° C to 650 ° C. This high-temperature gas system can be obtained by pumping from the position where the powder raw material introduced from the raw material supply line 13 of the cement powder raw material is mixed. Since the water content of the organic sludge to be dried is about 80% by weight, the amount of the high-temperature gas to be evacuated must be an amount sufficient to evaporate the water contained in the organic sludge to generate heat required for superheating steam. That is, an amount of gas of 4 Nm 3 to 8 Nm 3 is usually required to be pumped per 1 kg of organic sludge.
此外，於進行抽氣的排放氣體中的粉塵濃度高的情形中，或於含有很多對後續的熱交換器22造成水合黏聚物之原因的揮發成分的情形中，較佳為於高溫氣體抽氣導管26設置旋風分離器等之集塵機。Further, in the case where the dust concentration in the exhaust gas to be evacuated is high, or in the case of containing a volatile component which causes a hydration of the binder to the subsequent heat exchanger 22, it is preferably a high-temperature gas pumping. The air duct 26 is provided with a dust collector such as a cyclone.
此外，亦可於排氣導管27附設旋風分離器等之集塵機，並使用集塵機將藉由該熱交換器22所冷卻後的排放氣體中的粉塵進行集塵，藉此防止揮發成分附著於後續的抽風機(IDF)9。Further, a dust collector such as a cyclone may be attached to the exhaust duct 27, and dust in the exhaust gas cooled by the heat exchanger 22 may be collected by a dust collector to prevent the volatile component from adhering to the subsequent dust. Exhaust fan (IDF) 9.
從懸浮式預熱器2所抽氣的高溫氣體係於熱交換器22將從乾燥機23所排出的130℃至200℃溫度的屬於進行循環的乾燥熱媒體之過熱蒸氣進一步加熱至300℃至400℃。The high temperature gas system pumped from the suspension preheater 2 is further heated in the heat exchanger 22 to the superheated steam belonging to the circulating dry heat medium discharged from the dryer 23 at a temperature of 130 ° C to 200 ° C to 300 ° C. 400 ° C.
高溫氣體的溫度係因該熱交換而降低至300℃至350℃，且在排氣導管12與來自懸浮式預熱器2的排放氣體匯流。The temperature of the high temperature gas is lowered to 300 ° C to 350 ° C due to the heat exchange, and the exhaust gas conduit 12 is merged with the exhaust gas from the floating preheater 2 .
並且，為了提高在熱交換器22的熱交換量，雖然加大熱交換器22的傳熱面積即可，但在將熱交換後的排放氣體使用於水泥原料的乾燥之情形中，或者作為排熱發電裝置的鍋爐用熱源來使用之情形中，未必需要加大傳熱面積以使熱交換後的氣體溫度大幅降低。Further, in order to increase the amount of heat exchange in the heat exchanger 22, the heat transfer area of the heat exchanger 22 may be increased, but the exhaust gas after heat exchange may be used in the case of drying the cement raw material, or as a row. In the case where the boiler of the thermoelectric power generation device is used as a heat source, it is not necessary to increase the heat transfer area to greatly reduce the temperature of the gas after the heat exchange.
考慮到這些條件時，係適用多管式熱交換器以及板式熱交換器等，作為熱交換器22的構造。In consideration of these conditions, a multi-tube heat exchanger, a plate heat exchanger or the like is applied as the structure of the heat exchanger 22.
由該熱交換器22中的熱交換而降低溫度的高溫氣體係被導入至懸浮式預熱器2的排氣導管12，而與來自懸浮式預熱器2的排放氣體匯流。The high temperature gas system whose temperature is lowered by the heat exchange in the heat exchanger 22 is introduced into the exhaust duct 12 of the floating preheater 2, and is merged with the exhaust gas from the floating preheater 2.
在此，例如在熱交換器22中的熱交換不充分，且熱交換後的排放氣體溫度比懸浮式預熱器2的排放氣體溫度還高150℃以上時，匯流後的排放氣體溫度的上升程度會變大，且隨著抽風機(IDF)9的抽吸氣體溫度的上升，送風能力會降低，因而會有無法再提升水泥煅燒設備的水泥燒塊的煅燒能力，且會使所抽氣的高溫氣體的顯熱損失變大，而使熱耗率惡化之虞。Here, for example, when the heat exchange in the heat exchanger 22 is insufficient, and the temperature of the exhaust gas after the heat exchange is higher than the temperature of the exhaust gas of the floating preheater 2 by 150 ° C or more, the temperature of the exhaust gas after the confluence rises. The degree will become larger, and as the temperature of the suction gas of the exhaust fan (IDF) 9 rises, the air supply capacity will decrease, so that the calcination ability of the cement agglomerate which can no longer improve the cement calcining equipment will be exhausted. The sensible heat loss of the high-temperature gas becomes large, and the heat rate is deteriorated.
關於此熱交換後的高溫氣體溫度的上限值，較佳為，藉由確保預定的廣度以作為熱交換器22的傳熱面積，從而將熱交換後的高溫氣體溫度的上限設定成比懸浮式預熱器2的排放氣體溫度還高150℃的溫度。更佳為將比懸浮式預熱器2的排放氣體溫度還高100℃的溫度設為上限。只要高溫氣體為冷卻至此上限值以下的溫度，則與懸浮式預熱器排放氣體匯流後的氣體溫度即會降低。With respect to the upper limit of the temperature of the high-temperature gas after the heat exchange, it is preferable to set the upper limit of the temperature of the high-temperature gas after the heat exchange to be higher than the suspension by ensuring the predetermined breadth as the heat transfer area of the heat exchanger 22. The exhaust gas temperature of the preheater 2 is also higher by 150 °C. More preferably, the temperature higher than the exhaust gas temperature of the floating preheater 2 by 100 ° C is set as the upper limit. As long as the high temperature gas is cooled to a temperature below the upper limit value, the temperature of the gas after confluence with the exhaust gas of the floating preheater is lowered.
例如，在將因對高溫氣體抽氣約20%而使溫度已降低20℃至30℃的懸浮式預熱器2的排放氣體與熱交換後的高溫氣體予以匯流之情形下，由於與未抽氣的情形相比匯流後的溫度較低，故可進一步提高抽風機(IDF)9的吸引力。For example, in the case where the exhaust gas of the suspension type preheater 2 whose temperature has been lowered by 20 ° C to 30 ° C due to the evacuation of the high temperature gas is merged with the high temperature gas after the heat exchange, since it is undrawn The situation of the gas is lower than the temperature after the confluence, so that the attraction of the exhaust fan (IDF) 9 can be further improved.
上述之情形，只要從第二段旋風分離器2b的氣體出口部所抽氣的高溫氣體的溫度(550℃至650℃)因藉由熱交換而降低至比懸浮式預熱器2的排放氣體溫度(約350℃)最大高100℃至150℃的溫度(上限450℃至500℃)以下，與抽氣前相比，匯流後的氣體溫度即會降低。並且，由於藉由對該高溫氣體進行抽氣使得最上段的旋風分離器2a中的流通氣體的壓力損失亦會降低，故可進一步提高抽風機(IDF)9的吸引力，使水泥燒塊的煅燒能力提升。In the above case, the temperature (550 ° C to 650 ° C) of the high-temperature gas sucked from the gas outlet portion of the second-stage cyclone 2 b is lowered to the exhaust gas of the suspension type preheater 2 by heat exchange. The temperature (about 350 ° C) and the maximum temperature of 100 ° C to 150 ° C (upper limit of 450 ° C to 500 ° C) or less, compared with before the pumping, the gas temperature after the confluence will decrease. Further, since the pressure loss of the flow-through gas in the uppermost cyclone 2a is also lowered by pumping the high-temperature gas, the suction force of the exhaust fan (IDF) 9 can be further increased, and the cement is burned. The calcination ability is improved.
考量此點，即使熱交換器的性能不高，亦能輕易地使已抽氣的高溫氣體降低至預定溫度，故能將有機污泥的處理裝置予以小型化與簡單化。In consideration of this point, even if the performance of the heat exchanger is not high, the pumped high-temperature gas can be easily lowered to a predetermined temperature, so that the organic sludge processing apparatus can be miniaturized and simplified.
另一方面，由有機污泥供給管線30供給至乾燥機23的高含水率有機污泥，係藉由在乾燥機23與過熱蒸氣管線28之間進行循環的過熱蒸氣而加熱至水的沸點或沸點附近，而成為含水率下降的乾燥有機污泥。在此，為了提高乾燥有機污泥的乾燥度，雖須提高溫度至使有機污泥的乾燥變成減速乾燥狀態，但由於通常加熱時的有機污泥的溫度於保持在100℃左右下，在恆速乾燥狀態的範圍中容易變成含水率在5%至10%左右的乾燥有機污泥，故無須將過高溫度的過熱蒸氣作為乾燥裝置的熱媒體。On the other hand, the high-water content organic sludge supplied from the organic sludge supply line 30 to the dryer 23 is heated to the boiling point of water by the superheated steam circulating between the dryer 23 and the superheated steam line 28 or Near the boiling point, it becomes a dry organic sludge with a reduced water content. Here, in order to increase the dryness of the dried organic sludge, the temperature of the organic sludge must be increased to a decelerated and dry state, but the temperature of the organic sludge during heating is kept at about 100 ° C, and is constant. In the range of the quick-drying state, it is easy to become a dry organic sludge having a water content of about 5% to 10%, so that it is not necessary to use an excessively high temperature superheated vapor as a heat medium for the drying device.
此外，在水泥煅燒設備所燃燒的乾燥污泥即使含水率為5%至10%，亦可充分地達成作為燃料的性能。Further, the dry sludge burned in the cement calcining apparatus can sufficiently achieve the performance as a fuel even if the water content is 5% to 10%.
因此，本實施形態的特徵為無須將乾燥裝置的熱媒體溫度設定得過高，而可使在熱交換器22的熱交換後的高溫氣體的溫度降低。換句話說，可容易地將高溫氣體的溫度降得比懸浮式預熱器2的排放氣體溫度還低，並降低懸浮式預熱器2的排放氣體與此氣體匯流後的溫度，並提高抽風機(IDF)9的流通氣體量。Therefore, the present embodiment is characterized in that the temperature of the high-temperature gas after heat exchange in the heat exchanger 22 can be lowered without setting the heat medium temperature of the drying device too high. In other words, the temperature of the high temperature gas can be easily lowered lower than the temperature of the exhaust gas of the floating preheater 2, and the temperature of the exhaust gas of the floating preheater 2 and the confluence of the gas can be lowered, and the pumping can be improved. The amount of gas flowing through the fan (IDF) 9.
就作為該乾燥機23而言，雖能使用氣流乾燥機或流動層乾燥機等，但較佳為使用乾燥後的排放氣體所含的粉塵較少、且比較容易控制乾燥度的材料移送型熱風式的多段乾燥機。In the dryer 23, a gas flow dryer, a fluidized bed dryer, or the like can be used. However, it is preferable to use a material transfer type hot air which has less dust and is more likely to control the dryness of the exhaust gas after drying. Multi-stage dryer.
如此所獲得的乾燥有機污泥係暫時儲存於給料斗25後，藉由供給管線31進行空氣輸送並作為燃料導入至預燒爐3以進行燃燒處理。The dried organic sludge obtained in this manner is temporarily stored in the hopper 25, air is supplied through the supply line 31, and is introduced as a fuel into the pre-burning furnace 3 to perform combustion treatment.
另一方面，在乾燥機23內從有機污泥蒸發的過熱蒸氣在匯流至循環的過熱蒸氣後，其一部分會經由過熱蒸氣管線29而輸送至除臭器24進行除臭處理後，並再次與懸浮式預熱器2的排放氣體12匯流而利用於水泥原料的乾燥等。On the other hand, after the superheated vapor evaporated from the organic sludge in the dryer 23 is merged into the circulating superheated steam, a part thereof is sent to the deodorizer 24 via the superheated steam line 29 for deodorization treatment, and again with The exhaust gas 12 of the floating preheater 2 is merged and used for drying of the cement raw material or the like.
如以上所說明，依據本實施形態的有機污泥處理方法，不會有影響水泥煅燒設備的作業之虞，且能將所獲得的乾燥有機污泥作為水泥煅燒設備的預燒爐3的燃料來有效利用。As described above, according to the organic sludge processing method of the present embodiment, the operation of the cement calcining apparatus is not affected, and the obtained dried organic sludge can be used as the fuel of the pre-burning furnace 3 of the cement calcining apparatus. use efficiently.
此外，由於將乾燥後的過熱蒸氣再次與排放氣體進行熱交換而循環利用於有機污泥的乾燥，故能有效率且有效地再利用過熱蒸氣。Further, since the superheated steam after drying is again subjected to heat exchange with the exhaust gas and recycled to the drying of the organic sludge, the superheated steam can be reused efficiently and efficiently.
依據本實施形態的有機污泥處理裝置，能有效地利用從水泥煅燒設備的懸浮式預熱器2所抽氣的高溫氣體所具有的顯熱，且不會有影響水泥煅燒設備的作業之虞，並能提升水泥煅燒設備的水泥燒塊的煅燒能力。According to the organic sludge processing apparatus of the present embodiment, the sensible heat of the high-temperature gas pumped from the suspension type preheater 2 of the cement calcining apparatus can be effectively utilized without affecting the operation of the cement calcining apparatus. And can improve the calcination capacity of the cement agglomerate of the cement calcining equipment.
此外，由於將乾燥後的過熱蒸氣再次與高溫的排放氣體進行熱交換而循環利用於有機污泥的乾燥，故能有效率且有效地再利用過熱蒸氣。Further, since the superheated steam after drying is again subjected to heat exchange with the high-temperature exhaust gas and recycled to the drying of the organic sludge, the superheated steam can be reused efficiently and efficiently.
並且，即使取代將一部分的過熱蒸氣輸送至除臭器24，而將該過熱蒸氣從懸浮式預熱器2最下段的旋風分離器2d的氣體出口部導入至最下段的旋風分離器2d上段的旋風分離器2c之間，或者直接導入至燒塊冷卻器4的冷卻用空氣的導入口，並經由水泥煅燒設備內的800℃以上的高溫部而將臭氣成分予以熱分解，亦可保持在不影響本實施形態的水泥煅燒設備的作業之狀態。Further, even if a part of the superheated steam is sent to the deodorizer 24, the superheated steam is introduced from the gas outlet portion of the cyclone separator 2d of the lowermost stage of the suspension type preheater 2 to the upper stage of the cyclone separator 2d of the lowermost stage. The vortex separator 2c is directly introduced into the inlet port of the cooling air of the block cooler 4, and the odor component is thermally decomposed by the high temperature portion of 800 ° C or higher in the cement calcining apparatus, and may be retained. The state of the operation of the cement calcining apparatus of the present embodiment is not affected.
亦即，較佳為將上述過熱蒸氣的一部分直接導入至水泥煅燒設備的800℃以上的地方，如此所導入的過熱蒸氣變成僅進行乾燥所產生的量，對水泥煅燒設備的作業之影響非常小，且由於提升前述各段旋風分離器出口部的抽氣所導致的水泥燒塊煅燒能力，故可充分地消除對水泥煅燒設備的作業之影響。That is, it is preferred that a part of the superheated steam is directly introduced into the cement calcining apparatus at a temperature of 800 ° C or higher, so that the introduced superheated steam becomes an amount produced only by drying, and the influence on the operation of the cement calcining apparatus is very small. Moreover, since the calcination ability of the cement agglomerate caused by the pumping of the outlet portion of the cyclone separator is increased, the influence on the operation of the cement calcining equipment can be sufficiently eliminated.
關於成為上述水泥煅燒設備內的800℃以上的地方，會因水泥煅燒設備的形態等而有所不同，其上限溫度雖未特別限定，但最高溫度的部分通常為1600℃。因此，只要將上述過熱蒸氣直接導入至水泥煅燒設備內的800℃至1600℃的溫度範圍的地方即可。The place where the temperature is 800 ° C or higher in the above-described cement calcining apparatus varies depending on the form of the cement calcining equipment, and the upper limit temperature is not particularly limited, but the portion having the highest temperature is usually 1600 ° C. Therefore, it is sufficient to directly introduce the above superheated steam into a temperature range of 800 ° C to 1600 ° C in the cement calcining apparatus.
此外，亦可取代將一部分的加熱蒸氣輸送至除臭器24，而藉由冷凝器等將該過熱蒸氣予以冷卻藉此成為水分予以回收，並可將已回收的水分進行用以分解所含有的臭氣成分等之廢水處理，而於水泥製造設備中再次利用。Further, instead of transferring a part of the heating vapor to the deodorizer 24, the superheated steam may be cooled by a condenser or the like to be recovered as moisture, and the recovered moisture may be used for decomposition. Waste water treatment such as odor components, and reuse in cement manufacturing equipment.
第2圖係顯示附設有本發明第二實施形態的有機污泥處理裝置的水泥煅燒設備之示意圖，且該有機污泥處理裝置41與第一實施形態的有機污泥處理裝置21的不同點為：將高溫氣體抽氣導管26及排氣導管27更換成高溫氣體抽氣管線42及高溫氣體排氣管線43，且將用於乾燥機23的乾燥之高溫氣體作為從懸浮式預熱器2的抽風機(IDF)9的下游側的排氣導管12分歧出的高溫排放氣體。2 is a schematic view showing a cement calcining apparatus to which an organic sludge processing apparatus according to a second embodiment of the present invention is attached, and the organic sludge processing apparatus 41 is different from the organic sludge processing apparatus 21 of the first embodiment. The high-temperature gas suction duct 26 and the exhaust duct 27 are replaced with the high-temperature gas exhaust line 42 and the high-temperature gas exhaust line 43, and the dried high-temperature gas for the dryer 23 is used as the slave preheater 2 The high-temperature exhaust gas which is branched from the exhaust duct 12 on the downstream side of the exhaust fan (IDF) 9.
在該有機污泥處理裝置41中，成為乾燥用熱源的高溫排放氣體係從懸浮式預熱器2的排氣導管12予以分歧，並經由高溫氣體抽氣管線42輸送至熱交換器22。由於此排放氣體幾乎未含有已在水泥煅燒設備的高溫部揮發的氯氣、SOx 、以及其他的揮發成分，且粉塵的含有量亦較少，故無須在輸送至熱交換器22前先將這些成分去除。In the organic sludge processing apparatus 41, the high-temperature exhaust gas system which is a heat source for drying is branched from the exhaust duct 12 of the floating preheater 2, and is sent to the heat exchanger 22 via the high-temperature gas suction line 42. Since this exhaust gas contains almost no volatile portion has a high temperature cement burning device chlorine, SO x, and other volatile components, and also containing a small amount of dust, there is no need in heat exchanger 22 before delivery to the first of these Ingredients removed.
來自該懸浮式預熱器2的排放氣體係在350℃至400℃左右的溫度下導入至熱交換器22，並在與過熱蒸氣進行熱交換後冷卻至200℃左右，之後與藉由除臭器24分解/去除過臭氣成分的一部分過熱蒸氣，同樣地在懸浮式預熱器2的排氣導管12中再次與來自懸浮式預熱器2的排放氣體匯流。The vent gas system from the suspension type preheater 2 is introduced into the heat exchanger 22 at a temperature of about 350 ° C to 400 ° C, and is cooled to about 200 ° C after heat exchange with the superheated steam, and then deodorized by The device 24 decomposes/removes a part of the superheated vapor of the odor component, and similarly merges with the exhaust gas from the floating preheater 2 in the exhaust duct 12 of the floating preheater 2.
依據該有機污泥處理裝置41，由於將使用於乾燥機23的乾燥之高溫氣體作為從懸浮式預熱器2的抽風機(IDF)9下游側的排氣導管12所分歧出的高溫排放氣體，故能在進行熱交換且溫度降低後導入至相同位置。並且，由於在進行有機污泥的乾燥時所產生的過熱蒸氣在進行除臭處理後會導入至排氣導管12，故不會對水泥煅燒設備中的氣體通風造成任何的影響，而能在不影響水泥煅燒設備的作業下進行有機污泥的處理。According to the organic sludge processing apparatus 41, the high-temperature exhaust gas which is dried by the dryer 23 is used as the high-temperature exhaust gas which is branched from the exhaust duct 12 on the downstream side of the exhaust fan (IDF) 9 of the floating preheater 2. Therefore, it can be introduced to the same position after heat exchange and temperature reduction. Moreover, since the superheated steam generated when the organic sludge is dried is introduced into the exhaust duct 12 after the deodorizing treatment, it does not have any influence on the gas ventilation in the cement calcining apparatus, and can The sludge is treated under the operation of the cement calcining equipment.
本發明的高含水率有機系廢棄物的處理方法及處理裝置係可使用於水泥煅燒設備中，並可有效率地處理各種產業領域所排放出的下水道污泥等之高含水率有機系廢棄物。此外，能將所獲得的乾燥有機系廢棄物作為水泥煅燒設備的燃料來有效利用，且煅燒後的殘留物係作為水泥燒塊原料來使用，並可有效率且有效地再利用乾燥後的熱媒體，故本發明對於一般產業領域中成為課題的省資源化亦有貢獻。因此，本發明具有非常高的產業上可利用性。The method and apparatus for treating high-water content organic waste according to the present invention can be used in cement calcining equipment, and can efficiently treat high-water content organic waste such as sewage sludge discharged from various industrial fields. . Further, the obtained dry organic waste can be effectively utilized as a fuel of a cement calcining apparatus, and the residue after calcination is used as a cement agglomerate raw material, and the dried heat can be reused efficiently and efficiently. According to the media, the present invention contributes to the resource-saving of the province in the general industrial field. Therefore, the present invention has very high industrial applicability.
1．．．迴轉窯1. . . Rotary kiln
2．．．懸浮式預熱器2. . . Suspension preheater
2a至2d．．．旋風分離器2a to 2d. . . Cyclone separator
3．．．預燒爐3. . . Pre-burning furnace
4．．．燒塊冷卻器4. . . Burnt block cooler
5．．．電性集塵機5. . . Electric dust collector
6．．．抽風機6. . . Exhaust fan
7．．．排氣煙囪7. . . Exhaust chimney
8a至8c．．．冷卻風扇8a to 8c. . . cooling fan
9．．．抽風機(IDF)9. . . Exhaust fan (IDF)
10．．．二次空氣導管10. . . Secondary air duct
11、12、18、27．．．排氣導管11, 12, 18, 27. . . Exhaust duct
13．．．原料供給管線13. . . Raw material supply pipeline
14．．．乾燥處理裝置14. . . Drying treatment device
15．．．抽器導管15. . . Pumping catheter
16、23．．．乾燥機16,23. . . Dryer
17．．．集塵器17. . . Dust collector
19．．．排氣導入風扇19. . . Exhaust air inlet fan
21、41．．．有機污泥處理裝置21, 41. . . Organic sludge treatment unit
22．．．熱交換器twenty two. . . Heat exchanger
24．．．除臭器twenty four. . . Deodorizer
25．．．給料斗25. . . Feed hopper
26．．．高溫氣體抽氣導管26. . . High temperature gas extraction catheter
28、29．．．過熱蒸氣管線28, 29. . . Superheated steam line
30．．．有機污泥供給管線30. . . Organic sludge supply pipeline
31．．．供給管線31. . . Supply pipeline
42、43．．．高溫氣體抽氣管線42, 43. . . High temperature gas extraction line
第1圖係顯示附設有本發明第一實施形態的有機污泥處理裝置的水泥煅燒設備之示意圖。Fig. 1 is a schematic view showing a cement calcining apparatus to which an organic sludge processing apparatus according to a first embodiment of the present invention is attached.
第2圖係顯示附設有本發明第二實施形態的有機污泥處理裝置的水泥煅燒設備之示意圖。Fig. 2 is a schematic view showing a cement calcining apparatus to which an organic sludge processing apparatus according to a second embodiment of the present invention is attached.
第3圖係顯示附設有習知的高含水率有機系廢棄物的乾燥處理裝置之水泥製造設備之示意圖。Fig. 3 is a schematic view showing a cement manufacturing facility with a drying treatment apparatus of a conventional high water content organic waste.
1．．．迴轉窯1. . . Rotary kiln
2．．．懸浮式預熱器2. . . Suspension preheater
2a至2d．．．旋風分離器2a to 2d. . . Cyclone separator
3．．．預燒爐3. . . Pre-burning furnace
4．．．燒塊冷卻器4. . . Burnt block cooler
5．．．電性集塵機5. . . Electric dust collector
6．．．抽風機6. . . Exhaust fan
7．．．排氣煙囪7. . . Exhaust chimney
8a至8c．．．冷卻風扇8a to 8c. . . cooling fan
9．．．抽風機(IDF)9. . . Exhaust fan (IDF)
10．．．二次空氣導管10. . . Secondary air duct
11、12、27．．．排氣導管11, 12, 27. . . Exhaust duct
13．．．原料供給管線13. . . Raw material supply pipeline
23．．．乾燥機twenty three. . . Dryer
21．．．有機污泥處理裝置twenty one. . . Organic sludge treatment unit
22．．．熱交換器twenty two. . . Heat exchanger
24．．．除臭器twenty four. . . Deodorizer
25．．．給料斗25. . . Feed hopper
26．．．高溫氣體抽氣導管26. . . High temperature gas extraction catheter
28、29．．．過熱蒸氣管線28, 29. . . Superheated steam line
30．．．有機污泥供給管線30. . . Organic sludge supply line
31．．．供給管線31. . . Supply pipeline
Claims (8)
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| JP2006300605A JP4987428B2 (en) | 2006-11-06 | 2006-11-06 | High moisture content organic waste treatment method and treatment equipment |
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| TWI419847B true TWI419847B (en) | 2013-12-21 |
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| JP (1) | JP4987428B2 (en) |
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| JP2008114173A (en) | 2008-05-22 |
| CN101528614B (en) | 2011-07-06 |
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| WO2008056664A1 (en) | 2008-05-15 |
| CN101528614A (en) | 2009-09-09 |
| JP4987428B2 (en) | 2012-07-25 |
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| US20100058963A1 (en) | 2010-03-11 |
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