TWI257330B - Method and apparatus for treating incineration fly ash - Google Patents
Method and apparatus for treating incineration fly ash Download PDFInfo
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- TWI257330B TWI257330B TW92125501A TW92125501A TWI257330B TW I257330 B TWI257330 B TW I257330B TW 92125501 A TW92125501 A TW 92125501A TW 92125501 A TW92125501 A TW 92125501A TW I257330 B TWI257330 B TW I257330B
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- fly ash
- incineration
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- 239000010881 fly ash Substances 0.000 title claims abstract description 78
- 238000000034 method Methods 0.000 title claims abstract description 18
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 39
- 238000004898 kneading Methods 0.000 claims abstract description 14
- 238000005406 washing Methods 0.000 claims abstract description 13
- 239000007788 liquid Substances 0.000 claims abstract description 8
- 238000000926 separation method Methods 0.000 claims abstract description 7
- 239000004568 cement Substances 0.000 claims description 20
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 claims description 8
- 229910052801 chlorine Inorganic materials 0.000 claims description 8
- 239000000460 chlorine Substances 0.000 claims description 8
- 238000003860 storage Methods 0.000 claims description 8
- 238000010438 heat treatment Methods 0.000 claims description 7
- 238000006298 dechlorination reaction Methods 0.000 claims description 3
- 238000003756 stirring Methods 0.000 claims description 3
- 230000000382 dechlorinating effect Effects 0.000 claims description 2
- 239000007787 solid Substances 0.000 abstract description 3
- 239000002956 ash Substances 0.000 description 13
- 239000002994 raw material Substances 0.000 description 9
- 239000002245 particle Substances 0.000 description 8
- 229910001385 heavy metal Inorganic materials 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 5
- KVGZZAHHUNAVKZ-UHFFFAOYSA-N 1,4-Dioxin Chemical compound O1C=COC=C1 KVGZZAHHUNAVKZ-UHFFFAOYSA-N 0.000 description 4
- 239000011362 coarse particle Substances 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- QIGBRXMKCJKVMJ-UHFFFAOYSA-N Hydroquinone Chemical compound OC1=CC=C(O)C=C1 QIGBRXMKCJKVMJ-UHFFFAOYSA-N 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- 239000010419 fine particle Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000004056 waste incineration Methods 0.000 description 2
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 229920000663 Hydroxyethyl cellulose Polymers 0.000 description 1
- 239000004354 Hydroxyethyl cellulose Substances 0.000 description 1
- 235000019738 Limestone Nutrition 0.000 description 1
- 239000004372 Polyvinyl alcohol Substances 0.000 description 1
- 229910004298 SiO 2 Inorganic materials 0.000 description 1
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 1
- 229920002125 Sokalan® Polymers 0.000 description 1
- 229920002310 Welan gum Polymers 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 238000013019 agitation Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000010882 bottom ash Substances 0.000 description 1
- 229920002678 cellulose Polymers 0.000 description 1
- 239000001913 cellulose Substances 0.000 description 1
- 239000002817 coal dust Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000185 dioxinlike effect Effects 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 239000010791 domestic waste Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 150000004676 glycans Chemical class 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 235000019447 hydroxyethyl cellulose Nutrition 0.000 description 1
- 239000002440 industrial waste Substances 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000006028 limestone Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 229920000609 methyl cellulose Polymers 0.000 description 1
- 239000001923 methylcellulose Substances 0.000 description 1
- 235000010981 methylcellulose Nutrition 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- TVMXDCGIABBOFY-UHFFFAOYSA-N octane Chemical compound CCCCCCCC TVMXDCGIABBOFY-UHFFFAOYSA-N 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 229920002401 polyacrylamide Polymers 0.000 description 1
- 239000004584 polyacrylic acid Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 229920001282 polysaccharide Polymers 0.000 description 1
- 239000005017 polysaccharide Substances 0.000 description 1
- 229920002451 polyvinyl alcohol Polymers 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
Classifications
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- 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
-
- 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
- B03B9/04—General arrangement of separating plant, e.g. flow sheets specially adapted for furnace residues, smeltings, or foundry slags
-
- 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
- C04B7/24—Cements from oil shales, residues or waste other than slag
- C04B7/26—Cements from oil shales, residues or waste other than slag from raw materials containing flue dust, i.e. fly ash
-
- 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
- C04B7/38—Preparing or treating the raw materials individually or as batches, e.g. mixing with fuel
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B3/00—Extraction of metal compounds from ores or concentrates by wet processes
- C22B3/20—Treatment or purification of solutions, e.g. obtained by leaching
- C22B3/22—Treatment or purification of solutions, e.g. obtained by leaching by physical processes, e.g. by filtration, by magnetic means, or by thermal decomposition
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B7/00—Working up raw materials other than ores, e.g. scrap, to produce non-ferrous metals and compounds thereof; Methods of a general interest or applied to the winning of more than two metals
- C22B7/006—Wet processes
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B7/00—Working up raw materials other than ores, e.g. scrap, to produce non-ferrous metals and compounds thereof; Methods of a general interest or applied to the winning of more than two metals
- C22B7/02—Working-up flue dust
-
- 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
-
- 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
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
-
- 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
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Materials Engineering (AREA)
- Ceramic Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- Mechanical Engineering (AREA)
- Geology (AREA)
- Manufacturing & Machinery (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Metallurgy (AREA)
- Life Sciences & Earth Sciences (AREA)
- Structural Engineering (AREA)
- Geochemistry & Mineralogy (AREA)
- General Engineering & Computer Science (AREA)
- Processing Of Solid Wastes (AREA)
Description
1257330 (1) 玖、發明說明 【發明所屬之技術領域】 本發明係關於由焚化設備所排出之焚化飛灰的處理方 法及裝置,特別是利用焚化飛灰作爲水泥製作用原料的方 法及裝置。 【先前技術】 傳統上,可燃性的家庭廢棄物及事業廢棄物,是利用 燃煤式焚化爐、流動床式焚化爐、熔融式焚化爐、旋窯及 分批式爐等進行焚化後,將所產生的焚化灰掩埋於廢棄物 最終處理廠的方式進行處理。而焚化灰中可由集麈器所收 集的飛灰(煤塵),由於氯的濃度過高,並受到重金屬及 戴奧辛類物質的過度污染,已於日本平成3年(西元 1 9 9 1 )的廢棄物處理法的修正中,指定爲特別管理的一般 廢棄物。另外,相較於飛灰,焚化灰中被作爲焚化殘澄排 出之主灰(爐底灰、爐下灰)的氯濃度、重金屬濃度及戴 奧辛類物質等濃度則相差甚遠。話雖如此,爲了確保廢棄 物最終處理廠的安全性,對於重金屬類濃度及戴奧辛類含 量高於法律所明文規定之數値的最終處理焚化灰,則必須 掩埋於遮斷型最終處理場,或著於進行熔融、水泥固化及 戴奧辛物質的分解處理後掩埋於管理型最終處理場。 由廢棄物焚化設施所產生的焚化灰,由於含有水泥原 料所需的CaO、Si02、Al2〇3及Fe203等,可充分地資源 回收作爲水泥加熱處理用的原料。此外,由於在水泥加熱 1257330 (2) 的過程中原料必須暴露在1 4〇〇 °c以上的高溫中,除了能 分解焚化灰中戴奧辛,更能使重金屬類進入水泥熟料的礦 物中形成固化。
由於以上的理由,近年來已証實可採用焚化灰做爲部 份原料的水泥製作技術,並可回收焚化主灰及焚化飛灰以 供水泥的製作。通常,焚化主灰是利用磁性篩選去除鐵的 成份、並於利用分類的方式去除異物之後作爲水泥的原料 。另外,焚化飛灰中以NaCl等形態含有高濃度的氯,爲 了避免對窯的穩定操作性及水泥的品質產生不良的影響, 是利用水洗處理去除氯的成份後才作爲水泥的原料。 如上所述地,焚化飛灰中含有大量戴奧辛之類的有害 物質,且水泥生產設備的配置上,大多數的場合中不得不 將焚化飛灰的水洗裝置與水泥加熱裝置配置在不同的場所 ,因此必須以卡車在各設備之間進行運輸。於是,可避免 運輸過程中因焚化飛灰飛散造成環境二次污染的方法便受 到各方的期待。
【發明內容】 本案便是因應上述的問題所硏發出的發明,本案的目 的是提供一種:在防止對環境造成二次污染的同時,可利 用焚化飛灰作爲水泥原料的焚化飛灰之處理方法及裝置。 本案的發明人,是對飛灰塊(fly ash cake)的物理性質 進行調查,並在飛灰塊含有水份的狀態下利用密閉型的泵 在配管內進行壓力輸送,發展出不會造成二次污染的方法 -6- 1257330 (3) 在燃煤式焚化爐等焚化設備所排出的飛灰中,通常含 有平均粒徑爲3 0 m左右的細小粒子、及平均粒徑爲5 0 0 μ m左右的粗大粒子。由於上述飛灰是以泥漿的形態進行 輸送,當添加適當的水份並在配管內進行壓送時,恐有因 粗大粒子沉澱分離而導致配管阻塞之虞。 因此,在本發明中,是在調整水洗除氯後飛灰塊之含 水量的狀態下,藉由提高飛灰塊的流動性來防止粗大利子 的沉澱分離後,朝配管內進行壓送。 本發明所揭示的焚化飛灰之處理方法,是對焚化設備 所排出的焚化飛灰施以水洗後除氯,再將除氯後的飛灰塊 調整成含有 45〜60%的水份,並於混凝土塌陷(concrete s 1 u m p )値形成2 0 c m後,利用密閉型的泵朝配管內進行壓 調整成含有45〜60%水份的飛灰塊,可藉由捏合、或 者在儲槽內攪拌儲存的方式,形成20cm以上的混凝土塌 陷値。 此外,當將飛灰塊的水份調整成45〜60%之際,亦可 添加增黏劑。 飛灰塊可利用密閉型的泵透過配管,朝水泥加熱用的 窯進行壓送。 而本發明所揭示的焚化飛灰之處理裝置,具備:可於 對焚化設備所排出之焚化飛灰進行水洗除氯後,形成含有 4 5〜6 0°/。水份之飛灰塊的水洗手段;和可將水洗手段所形 1257330 (4) ^ 成之飛灰塊的流動性,調整成20cm以上之混凝土塌陷値 ·. 的流動性調整手段;及可將由流動性調整手段調整流動性 , 後的飛灰塊,朝配管內進行壓送的密閉型的泵。 而流動性調整手段,可採用能捏合飛灰塊的捏合機、 ^ 或者能攪拌儲存飛灰塊的儲槽。 - 而水洗手段,可採用帶濾機、壓濾機、離心分離機、 滾筒式過濾機等固液分離裝置。 【實施方式】 Φ 接下來,根據附圖說明本發明的實施形態。 第1圖,是本發明實施形態中焚化飛灰之處理方法的 槪略流程圖。其中配置有可對由廢棄物焚化設備之焚化爐 1排出後形成泥漿的焚化飛灰,進行固液分離的帶濾機2 ,並在帶濾機2的正上方配置灑水用的噴嘴3。在帶濾機 2的集水盤4處,連接著可對固液分離後的水進行淨化處 理的水處理裝置5。在帶濾機2的出口端配置有捏合機6 ’並且經由配管7及軟管泵將活塞泵連接於捏合機6。此 · 外,活塞泵9經由配管1 〇連接著圖面中未顯示的水泥加 熱窯。 由焚化爐1排出的焚化灰,在圖面中未顯示的溶解槽 內,於溫水中形成泥漿後供給至帶濾機2,在上方的噴嘴 3灑水並同步由下方對水份進行真空吸引的狀態下,由帶 濾機2朝出口側移動。換言之,焚化灰是在帶濾機2上移 動的過程中同步進行水洗除氯,並接著進行固液分離。固 - -8- 1257330 (5) 液分離後溶解有氯的水,是集中於帶濾機2的集水盤4後 送往水處理裝置5,並在水處理裝置5處針對重金屬進行 適當的淨化處理後才進行排水。 另外,去除氯成份後殘留在帶濾機2上的固態物,則 形成含有水份的飛灰塊並由帶濾機2排出。此時,乃對帶 濾機2的搬運速度、吸引的真空度及噴嘴3的灑水量進行 調整,以便使飛灰塊形成45〜60%水份。此外,當飛灰中 含有大量平均粒度爲5 0 0 // m左右的粗大粒子時,亦可對 帶濾機2所排出的飛灰塊添加水分,以形成45〜60%水份 〇 這樣一來,將水份調整成45〜60%的飛灰塊供給至捏 合機6進行捏合,直到混凝土塌陷値高於20cm以上。在 本案中,混凝土塌陷値是採取以日本工業規格J I S A 1 1 0 1 「混凝土的塌陷試驗方法」爲基準的試驗所測得。而捏合 機6,亦可採用揉合機及雙軸式伴合機等高捏和度的裝置 〇 在捏合機6中完成流動性調整的飛灰塊,係利用軟管 泵8由配管7內送往活塞泵9,再由活塞泵9壓送至圖面 中未顯示的水泥加熱窯。藉此,飛灰塊可穩定地供給至窯 內以製造水泥。 此外’當於帶濾機2處形含水量爲45〜60%的飛灰塊 時,倘若在飛灰內添加增黏劑,可有效地防止平均粒徑爲 500//m左右的粗大粒子由飛灰中分離。增黏劑通常是使 用灌漿(注入水泥液)用、水中不分離性混凝土用、高流 -9 - 1257330 (6) 動混凝土用的藥劑,具體來說,可採用1 )甲基纖維素、 羥丙基甲基纖維素、羥乙基纖維素之類的纖維素;2 )聚 丙烯醯胺、聚丙烯酸蘇打之類的丙烯酸系;3 )聚乙烯醇 Z類的水彳谷性聚合物,4 )卡特蘭膠(c u 1. d 1 a n g u η )、威 蘭膠(w e 1 a 11 g u η )之類的多醣體。或亦可採用高爐熔渣 微粒、飛灰微粒、石灰石微粒等無機系微粒作爲增黏劑。 而,亦可採用壓濾機等裝置取代帶濾機2進行固液分 離。
用來壓送飛灰塊的密閉型泵,除了活塞泵9之外,亦 可採用管式、轉子式或者隔膜式的泵。 而軟管泵8的作用是將飛灰塊由捏合機6送入活塞泵 9,但亦可根據捏合機6與活塞泵9之間的位置關係將其 省略,而僅由活塞泵9將飛灰塊由捏合機6壓送至窯內。
如第2圖所示地,其中是以儲槽1 1取代捏合機6配 置在帶濾機2的出口側,藉由在儲槽1 1內對水分含量調 整成45〜60%的飛灰塊進行攪拌儲藏,可將飛灰塊的流動 性調整爲20cm以上的混凝土塌陷値。 綜上所述,根據本發明,可在防止對環境造成二次污 染的同時,將焚化飛灰壓送入配管內,進而利用焚化飛灰 作爲水泥的原料。由於飛灰塊的壓送,是在將飛灰塊的含 水量調整成4 5〜6 0 %,並形成2 0 c m以上的混凝土塌陷値 後進行,除了能防止配管阻塞,更能將因爲添加大量不需 要之水分所導致的熱能損失降到最低。 -10- 1257330 (7) . 【圖式簡單說明】 第1圖:本發明實施形態中焚化飛灰之處理方法的槪 _ 略流程圖。 第2圖:其他實施形態中焚化飛灰之處理方法的槪略 “ 流程圖。 - 〔元件對照表〕 1 :焚化爐 2 :帶濾機 · 3 :噴嘴 4 :集水盤 5 :水處理裝置 6 :捏合機 7 :配管 8 :軟管泵 9 :活塞泵 1 〇 :配管 _ 1 1 :儲槽 > 11 -
Claims (1)
1257330 (1) 拾、申請專利範圍 1.一種焚化飛灰之處理方法,其特徵爲: 對焚化設備所排出的焚化飛灰施以水洗後除氯, 再將除氯後的飛灰塊調整成含有4 5〜6 0 %的水份, 並於混凝土塌陷(c ο n c r e t e s 1 u m p)値形成2 0 c m後,利 用密閉型的泵朝配管內進行壓送。
2 ·如申請專利範圍第1項的焚化飛灰之處理方法,其 中調整成含有45〜60%水份的飛灰塊,可藉由捏合的方式 形成20cm以上的混凝土塌陷値。 3 ·如申請專利範圍第1項的焚化飛灰之處理方法,其 中調整成含有45〜60%水份的飛灰塊,可藉在儲槽內攪拌 儲存的方式形成20cm以上的混凝土塌陷値。 4 .如申請專利範圍第1項的焚化飛灰之處理方法,其 中當將飛灰塊的水份調整成45〜60%之際可添加增黏劑。
5 .如申請專利範圍第1項的焚化飛灰之處理方法,其 中飛灰塊可利用密閉型的泵,透過配管朝水泥加熱用的窯 進行壓送。 6.—種焚化飛灰之處理裝置,其特徵爲具備: 可於對焚化設備所排出之焚化飛灰進行水洗除氯後, 形成含有45〜60%水份之飛灰塊的水洗手段;和 可將水洗手段所形成之飛灰塊的流動性,調整成 2 0cm以上之混凝土塌陷値的流動性調整手段;及 可將由流動性調整手段調整流動性後的飛灰塊,朝配 管內進行壓送的密閉型的泵。 •12- 1257330 (2) 7 .如申請專利範圍第6項的焚化飛灰之處理裝置,其 中流動性調整手段,可採用能捏合飛灰塊的捏合機。 8 .如申請專利範圍第6項的焚化飛灰之處理裝置,其 中流動性調整手段,可採用能攬拌儲存飛灰塊的儲槽。 9 .如申請專利範圍第6項的焚化飛灰之處理裝置,其 中水洗手段,可採用帶濾機、壓濾機、離心分離機、滾筒 式過濾機等固液分離裝置。
-13-
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