308637 A7 經濟部中央標準局員工消費合作社印装 _B7____五、發明説明（1 ) 〔發明之領域〕 本發明係關於一種從拉圾焚化爐或燃燒爐所排出之排 氣中除去氛化物或硫化物的排'氣處理方法及裝置。 〔發明之背景〕 以往，在例如一般廢棄物及產業廢棄物之焚化設備， 作爲除去發生在廢棄物之焚化時之酸性氣體的方式，有在 水噴射之洗淨塔內通過排氣經洗淨（因氣體吸收成爲酸性 :之噴射水係以氫氧化鈉中和）的濕式洗淨方式，或在集塵 裝置（電氣集塵機，袋濾器）之前段上游側將鹸性溶液吹 進排氣中，與酸性氣髏反應而生成固形化合物，將此捕集 在集塵裝®的半乾式洗淨方式，或是在集塵裝e之前段上 游側將鹸性粉末吹進排氣中，與酸性氣體反應而生成固形 化合物，將此捕集在集塵裝置的乾式洗淨方式。在此，檢 討在下游配置集塵裝s的半乾式洗淨方式與真式洗淨方式 〇 上述半乾式洗淨方式係雖在酸性氣體之除去性能稍優 異，但是有在吹進部堆積例如消石灰C: a ( OH ) 2之成 分的鹸性溶液，或是容易產生吹進噴嘴之閉塞等問題。因 此，採用乾式洗淨方式之工廠較多。 一方面，因乾式洗淨方式係鹼性粉末與排氣之間的固 氣反應，因此，反應效率會稍下降，除去效率較差。故在 有害氣體排出限制較嚴之工廠，鹸性粉末之吹進量會增多 ，結果，有處理灰增多之問題。 本紙張尺度通用中國國家標準（CNS ) A4規格（210X 297公釐）—4 - I n I I I 裝 訂 〆 (請先閱讀背面之注意事項再填寫本頁) 經濟部中央樣準局員工消費合作杜印製 A7 _B7__ 五、發明説明（2 ) 〔發明之揭示〕 本發明係解決上述問題點·，而其目的係在於提供一種 採用在噴嘴不會有阻塞之問題的乾式洗淨，又能提高反應 效率的排氣處理方法及實施該方法所用的排氣處理裝置。 爲了達成該目的，本發明之排氣處理方法，其特徵爲 在集塵裝置之前段上游側，將與排氣中之酸性氣體反 ‘應而生成固形化合物之鹸性粉末吹進排氣中，在下游側藉 由集塵裝置捕集所生成之固形化合物時， 在焚化爐之二次燃燒室出口與集塵裝置之間的排氣路 徑，將水蒸氣吹進排氣中藉提昇排氣之水分濃度，提高鹸 性粉末與酸性氣體之間的反應效率者。 依照上述構成，若排氣之水分量高時，由各種拉圾焚 化爐之運轉結果判定鹸性粉末與酸性氣體之間的反應效率 參 變良好。但是，一般在排氣導管之上游側因多量地實行使 用於排氣之冷卻的水噴射而增加排氣中之水分量時，欲均 勻地分散於排氣中而增加水分量極難，而且有局部性降低 排氣溫度之虞。如此，則在排氣導管會附著水滴產生露點 腐蝕，或阻塞集塵裝置之濾布之虞。在上述方法，藉將此 •使用水蒸氣，可均勻地增大排氣之水分量而能提昇酸性氣 體與鹸性粉末之間的反應效率，也不會有露點腐蝕或阻塞 濾布之虞。 又，在上述方法中，在鹸性粉末之吹進位B的上游側 本紙張尺度遴用中國國家標隼（CNS ) A4現格（210X 29?公釐）-5 - 1^1 In ^^^1 I^i n ^^1 m ^1; m 1^1 , 0¾ ·νβ (請先閲讀背面之注意事項再填寫本頁) 經濟部中央樣準局員工消費合作社印裝 A7 B7 五、發明説明（3 ) 近旁或下游側近旁，將高壓水蒸氣吹進排氣中，將由減壓 作用所生成之微細水滴與酸性氣體施行反應，藉由實行這 些微細水滴與鹸性粉末之間的固液反應，而且藉蒸氣分散 鹸性粉末以擴大與酸性氣髖之反應面積，俾提高鹼性粉末 與酸性氣體之間的反應效率，爲其特徴者。 依照上述方法，藉將高壓蒸氣吹進排氣中，以急激之 減壓作用施以急驟化學反應而在極短時間（瞬時）生成微 細水滴。如此，在酸性氣體與水容易反應之氮化氫等反應 而與鹸性粉末接觸，施行比固氣反應更有效率之固液反應 ，而生成效率優異之固形化合物。又在蒸氣與鹼性粉末之 氣送空氣所接觸之部分也同樣地產生微細水滴而形成有微 細水滴與酸性氣體與鹸性粉末瞬時共存之狀態，藉由固液 反應可提高鹸性粉末之反應效率。又，鹸性粉末成爲依水 蒸氣有效地被分散，因而可增大酸性氣體與鹸性粉末之間 的接觸面積而促進固氣反應。由此，可提高《驗性粉末之反 應效率而可減少其使用量，結果，也減少在集塵裝置所捕 集之飛灰量，可減少防止重金屬之洗脫所用之中和劑的使 用量或人造陸地之佔有量。 又在上述各方法中，將水蒸氣之溫度設成排氣溫度之 ±5 0°C之範圍，爲其特徵者。 依照上述方法，可防止排氣之大幅度降低溫度，不會 有濾布阻塞等之虞，不會降低集塵裝置之分離性能，也不 會損傷集塵裝置。 又，本發明之排氣處理裝置，係牖於在壚與集塵裝置 本紙伕尺度適用中國國家標隼（CNS ) Μ規格（210X297公釐）-6 - (請先閱讀背面之注意事項再填寫本頁) 其本· 訂 308637 A7 B7 經濟部中央樣隼局員工消费合作社印裂 五、發明説明（4 ) 之間的排氣導管，設ff吹進在排氣中與排氣中之酸性氣體 反應而生成固形化合物之鹸性粉末的粉末供應噴嘴，並以 集裝置捕集所生成之固形化合物的排氣處理裝置，其特徵 爲. 在上述粉末供應噴嘴之上游側近旁或下游側近旁，配 設將水蒸氣吹進排氣中以提高酸性氣體與鹸性粉末之反應 效率的粉末供應噴嘴者。 依照上述構成，由於水蒸氣之減壓及氣送空氣之間的 接觸所生成之微細水滴與鹸性粉末之間的固液反應，及鹸 性粉末之分散效果，以極簡單之構成即可提高鹼性粉末之 反應效率，可減低鹸性粉末之使用量並可減低包括未反應 之鹸性粉末之飛灰的捕集量。 (實施例之說明） 依據第1 ，2圖說明本發明之排氣處理裝e之實施例 0 在從垃圾焚化瀘1所排出之排氣路徑，具備：從排氣 熱回收所用的鍋逋2 ，及將水噴射於排氣以降低排氣溫度 所用之排氣冷卻裝置的減溫塔3，及將與包括於排氣中之 氯化氫或二氧化硫反應而生成固形化合物之鹼性粉末，例 如消石灰Ca (0H) 2或氫氧化鎂Mg (OH) 2等之粉 末與反應助劑，在減溫塔3下游側之排氣導管4內從粉末 供應噴嘴5 a吹進排氣中的鹸性粉末供應裝g 5 ，及在粉 末供應噴嘴5 a之上游側近旁或下游側近旁從蒸氣噴嘴 (請先閲讀背面之注意事項再填寫本頁) 裝.308637 A7 Printed by the Employees ’Consumer Cooperative of the Central Bureau of Standards of the Ministry of Economic Affairs _B7____ V. Description of the invention (1) [Field of the invention] The present invention relates to the removal of volatiles from the exhaust gas discharged from waste incinerators or burners Sulfide exhaust gas treatment method and device. [Background of the invention] Conventionally, in the incineration equipment for general waste and industrial waste, for example, as a method of removing acid gas that occurs during the incineration of waste, there is a method of removing the acid gas that occurs during the incineration of waste. (It becomes acidic due to gas absorption: the spray water is neutralized with sodium hydroxide), or the upstream side of the dust collector (electric dust collector, bag filter) is blown into the exhaust gas on the upstream side of the dust collector (electric dust collector, bag filter) , React with acid gas to generate solid compounds, trap this in the semi-dry cleaning method of dust collector®, or blow the ash powder into the exhaust on the upstream side before the dust collector e, and acid The gas reacts to form a solid compound, which is collected in a dry cleaning method of the dust collector. Here, review the semi-dry cleaning method and the true cleaning method in which the dust collector s is arranged downstream. The above-mentioned semi-dry cleaning method is slightly superior in the removal performance of acid gas, but there is accumulation of slaked lime in the blowing section C: A (OH) 2 component solution, or it is easy to cause problems such as blockage into the nozzle. Therefore, many factories adopt dry cleaning methods. On the one hand, since the dry cleaning method is a solid-gas reaction between the alkaline powder and the exhaust gas, the reaction efficiency is slightly lowered, and the removal efficiency is poor. Therefore, in factories with stricter restrictions on the discharge of harmful gases, the amount of blown-in powder will increase. As a result, there is a problem of increased ash treatment. The size of this paper is universal Chinese National Standard (CNS) A4 specification (210X 297mm)-4-I n III binding (please read the precautions on the back before filling this page) Employee consumption cooperation Duin System A7 _B7__ 5. Description of the invention (2) [Disclosure of the invention] The present invention solves the above-mentioned problems, and its purpose is to provide a dry cleaning method that does not cause clogging in the nozzle, and can improve the reaction efficiency Exhaust treatment method and exhaust treatment device used to implement the method. In order to achieve this object, the exhaust gas treatment method of the present invention is characterized in that, on the upstream side of the front stage of the dust collector, the effluent powder that generates solid compounds in response to the acid gas in the exhaust gas is blown into the exhaust gas. When the generated solid compounds are collected by the dust collector on the downstream side, in the exhaust path between the outlet of the secondary combustion chamber of the incinerator and the dust collector, water vapor is blown into the exhaust to raise the exhaust Moisture concentration improves the efficiency of the reaction between ash powder and acid gas. According to the above configuration, if the moisture content of the exhaust gas is high, it is judged from the operation results of various waste incinerators that the reaction efficiency between the ash powder and the acid gas becomes good. However, in general, when a large amount of water injection for cooling the exhaust gas is performed on the upstream side of the exhaust duct to increase the amount of water in the exhaust gas, it is extremely difficult to increase the amount of water evenly dispersed in the exhaust gas. Locally reduce the exhaust temperature. In this way, water droplets will adhere to the exhaust duct to cause dew point corrosion or block the filter cloth of the dust collector. In the above method, by using water vapor, the water content of the exhaust gas can be uniformly increased to improve the reaction efficiency between the acid gas and the powder, without the risk of dew point corrosion or clogging of the filter cloth. In addition, in the above method, on the upstream side of the blow-in position B of the powder, the Chinese national standard falcon (CNS) A4 spot (210X 29? Mm) -5-1 ^ 1 In ^^^ 1 I ^ in ^^ 1 m ^ 1; m 1 ^ 1, 0¾ · νβ (please read the precautions on the back before filling in this page) A7 B7 printed by the Consumer Consumer Cooperative of the Central Bureau of Samples of the Ministry of Economic Affairs 3) Near the side or near the downstream side, high-pressure steam is blown into the exhaust gas to react the fine water droplets generated by the decompression effect with the acid gas. By carrying out the solid-liquid reaction between these fine water droplets and the emerald powder, Moreover, by dispersing the powder of steam to expand the reaction area with the acid gas hip, so as to improve the reaction efficiency between the alkaline powder and the acid gas, it is unique. According to the above method, by blowing high-pressure steam into the exhaust gas and applying a sudden decompression to a sudden chemical reaction, fine water droplets are generated in a very short time (instantaneous). In this way, when the acid gas reacts with hydrogen nitride, which is easily reacted with water, and contacts with the emu powder, a solid-liquid reaction that is more efficient than the solid gas reaction is performed, and a solid compound with excellent efficiency is generated. In addition, fine water droplets are similarly generated in the part where the vapor and the basic powder air contact air are formed, and the state in which the fine water droplets and the acid gas and the emerald powder coexist instantaneously, the reaction of the emerald powder can be improved by the solid-liquid reaction effectiveness. In addition, the emu powder is effectively dispersed in accordance with water vapor, so that the contact area between the acid gas and the emu powder can be increased to promote the solid-gas reaction. As a result, the reaction efficiency of the test powder can be improved and the amount of its use can be reduced. As a result, the amount of fly ash trapped in the dust collector can also be reduced, and the amount of neutralizing agent used to prevent the elution of heavy metals can be reduced. Or the amount of man-made land. In each of the above methods, the temperature of the water vapor is set within a range of ± 50 ° C of the exhaust gas temperature, which is characteristic. According to the above method, it is possible to prevent the exhaust gas from drastically lowering the temperature, and there is no risk of clogging of the filter cloth, the separation performance of the dust collecting device is not reduced, and the dust collecting device is not damaged. In addition, the exhaust gas treatment device of the present invention is applicable to China National Standard Falcon (CNS) M specifications (210X297mm) -6-(Please read the precautions on the back before filling in This page) The original · Order 308637 A7 B7 The Ministry of Economic Affairs Central Sample Falcon Bureau Employee's Consumer Cooperative Printed 5. The exhaust duct between the invention description (4), set ff to blow in the exhaust gas and the acid gas in the exhaust gas The powder supply nozzle that reacts to produce the solid powder of the solid compound, and the exhaust treatment device that traps the generated solid compound with the collecting device is characterized in that it is located near the upstream side or near the downstream side of the powder supply nozzle. There is a powder supply nozzle that blows water vapor into the exhaust gas to improve the reaction efficiency of the acid gas and the powder. According to the above structure, the solid-liquid reaction between the fine water droplets generated by the decompression of water vapor and the contact between the air and the air, and the dispersion effect of the powder can be improved with a very simple structure The reaction efficiency of the alkaline powder can reduce the amount of ash powder used and can reduce the amount of fly ash collected including unreacted ash powder. (Description of the embodiment) According to the first and second figures, an embodiment of the exhaust gas treatment equipment e of the present invention will be described. 0 The exhaust path discharged from the waste incineration lu 1 includes: a boiler 2 used for heat recovery from the exhaust gas. , And the cooling tower 3 of the exhaust cooling device used to inject water into the exhaust gas to reduce the temperature of the exhaust gas, and will react with hydrogen chloride or sulfur dioxide included in the exhaust gas to generate an alkaline powder of solid compounds, such as slaked lime Ca Powders such as (0H) 2 or magnesium hydroxide Mg (OH) 2 and reaction aids are supplied from the powder supply nozzle 5 a into the exhaust in the exhaust duct 4 on the downstream side of the desuperheating tower 3 Install g 5 and from the steam nozzle near the upstream side or the downstream side of the powder supply nozzle 5 a (please read the precautions on the back before filling this page).
*1T r· 本紙張尺度適用中國國家標準（CNS ) A4規格（210X297公;!) 經濟部中央櫟準局員工消费合作杜印装 A7 B7五、發明説明（5 ) 6 a將高Μ (數氣壓）之水蒸氣以排氣溫度之土 5 0°C之 範圍吹進排氣中而促進鹼性粉末之反應的蒸氣供應裝置6 ，及除去由排氣中之灰塵及排氣中之氣化氫或二氧化硫與 鹸性粉末之間的反應所生成之氣化物，硫化物之集塵裝置 的袋濾器7 ，及排氣風扇8 ，及排氣用煙窗9等。 在上述蒸氣供應裝置6中，從蒸氣供應裝置6將吹進 排氣中之水蒸氣溫度作爲排氣溫度之± 5 0 °C範園，例如 排氣爲1 5 0 °C時則將水蒸氣之溫度作爲約1 〇 0〜 2 0 〇 °C，乃在未滿1 0 〇 °C，則排氣溫度會下降而所包 括之水分附著於袋濾器7之濾布，因而損及通氣性而且會 降低分離能力，又若超過2 0 0 °C，則排氣之溫度會上昇 而有損傷袋濾器7之濾布之虞。 —般，在爐之出口配《水管鍋爐來施以熱回收，又以 減溫塔3噴射冷卻水而冷卻成可通過袋濾器7之溫度的鍋 爐式焚化爐時，排氣之水分量係2 0〜2 5>，又，未由 鍋壚施以熱回收，而以爐出口之排氣冷卻裝置將冷卻水噴 射至排氣中而冷卻之水噴射式焚化爐時，排氣之水分置係 約4 0 %。又在設置將水管鍋爐之熱媒作爲氣體之氣體冷 卻器的焚化爐時，則推測比鍋爐式焚化爐，排氣之水分量 較少者。如此，依排氣之冷卻方式而排氣之水分量不相同 ，惟在這些也在排氣中吹進鹸性粉末而實行以集塵裝置捕 集該固形化合物，在這種情形，依排氣中之水分量而鹸性 粉末之反應效率不相同。水分量愈高能得到反應效率優之 結果。 II — I I I I |裝 訂 〆，· (請先閱讀背面之注意事項再填寫本頁) 本紙張尺度遑用中國國家標準（CNS ) A4規格（210X 297公釐）-8 - 經濟部中央樣隼局員工消费合作社印焚 A7 B7 五、發明説明（6 ) 由這種觀點，也可考量增大吹進排氣之冷卻水量而增 加排氣之水分置，惟欲在整體排氣均匀地增加水分置極困 難，而局部地增加水分量則產'生水滴因而附著於導管或機 器類有成爲露點腐蝕之原因之虞。又若水滴附著於袋濾器 之濾布時，則有降低排氣之過濾能力之虞。 然而，在本發明係藉由將此在排氣中吹進水蒸氣來解 決。如此，在吹進該水蒸氣之位置，係在垃圾焚化瀘1之 二次燃燒室出口與袋濾器7之間的排氣導管4 ，則在任{可 位置均能得到相對之效果。但是在排氣導管4之任意位置 ，爲了更提高反應效率，在本發明之實施例係爲作粉末供 應嗔嘴5 A之上游側或下游側之近旁。 說明上述構成之排氣處理方法。以減溫塔3藉冷卻水 之噴射降低成約1 5 0°C溫度之排氣中，從鹸性粉末供應 噴嘴5 a將例如消石灰之鹸性粉末吹進排氣中時，則藉排 氣中之氯化氫（鹽酸）或二氧化硫之間的固，氣反應， 2HC1 卞 Ca (0H)2— CaCl2+2H2〇 S Ο 2 + C a (0H)2— CaSC)3+H2〇 由氣化氫及二氧化硫生成固形化合物。此時，在其上 游側或下游側近旁藉高壓水蒸氣吹進大氣壓之排氣中，以 急激之減壓作用施以急驟化學反應而瞬間生成微細水滴。 如此，該微細水滴與酸性氣體（尤其是容易反應之氣化氫 等）實行反應而生成酸性液醴（鹽酸等），此液體與鹸性 本紙張尺度適用中國國家櫺隼（CNS)A4规格（210X 297公釐> -9 - ^ 裝 訂 (請先閱讀背面之注意事項再填寫本頁) 308637 A7 B7 經濟部中央橾準局員工消費合作社印裝 五、發明説明（7 ) 粉末相接觸而產生比固氣反應更有效率之固液反應，有效 率地生成固形化合物。又，同樣地在鹸性粉末之氣送空氣 與蒸氣接觸之部分，也產生微.細水滴而瞬間地形成有微細 水滴與酸性氣體及鹸性粉末共存之狀態，由該固液反應更 提高鹼性粉末之反應效率。又，將水蒸氣容易成爲微細水 滴化而有效果地作出該狀態，則將水蒸氣之溫度成爲稍低 者較有效果。又依水蒸氣有效果地分散鹸性粉末，因而增 大鹸性粉末與酸性氣體之間的接觸面稹而促進固氣反應。 依照上述實施形態，由於在鹸性粉末供應噴嘴5 a之 近旁，將水蒸氣吹進排氣中，以提高排氣中之水分澳度而 不會對週邊裝置有不良影響地。可提高包括於排氣之酸性 氣體與鹸性粉末之間的反應效率。又由於水蒸氣之減壓與 氣壓空氣之間的接觸所產生之微細水滴與酸性氣體及鹼性 粉末之共存狀態所產生的固液反應，以及由鹸性粉末之擴 散效果所產生之固氣反應的促進，而促進固_形化反應氣化 氫或二氧化硫等之有害物質，而以袋濾器7捕集固形化合 物。如此因可提高排氣之脫鹽，脫硫效果，因此可減低驗 性粉末之使用量，而可減少運轉成本。又，結果可次要地 減低依袋濾器7所捕集之飛灰的捕集量，因而可減少飛灰 用重金饜固定藥劑之使用量成人工造地之需要量。又，因 採用該乾式洗淨+袋濾器之方式而也能捕集戴奧辛。 又，在上述實施例，集塵裝置使用袋濾器7 ，惟代替 此也可使用電氣式集塵裝置。 (請先閲讀背面之注意ί項再填寫本頁) -裝· 訂 r、 本紙張尺度通用中國國家標隼（CNS ) Α4规格（210x’297公康）-1〇 A7 B7 五、發明説明（8 ) (實施例1 ) 使用表示於第3圓之實驗裝置，實證脫鹽效果。 該實驗裝置係入口排氣導管11連接於拉圾焚化設備 之排氣路徑的電氣集塵機上游側，而排氣被導入袋濾器 1 2。該排氣成分係如表1所示，其含有率係體積率。此 時之排氣係在出口排氣導管1 5之點B，溫度爲1 7 0°C ，排氣量爲7 8 · 8m3/h (濕氣體基）。 又，在入口導管1 1配設有從鹸性粉末供應裝置1 3 所供應之鹸性粉末吹進排氣中的粉末供應噴嘴1 3 a。在 此所使用之鹸性粉末，係作爲一例使用市售之消石灰粉末 (J I S特級），其供應量係中和排氣中之8 0 0 ppm 之氯化氫與5 0 0 p pm之二氧化硫所需之量’亦即未添 加水蒸氣時爲2 1 5 g/h，而添加水蒸氣時爲1 8 8 g /h，氣送室氣量爲1 5公升/ mi π (0°C，1氣壓） I. 裝 訂 (請先閲讀背面之注意事項再填寫本頁) 經濟部中央標隼局員4消费合作杜印製 本紙浪尺度適用中國國家標準（CNS ) A4规格（2丨0x297公慶）-11 A7 B7 五、發明説明（9 ) 表 1 成分 含有率 0 2 1 2 % Η 2 0 2 0 % H C 1 8 0 0 p p m S 0 2 5 0 ρ p m N 0 x 6 0 p p m 灰塵 2 g/m3((TC , 1氣壓） — 111! 裝 II —訂 (請先閱讀背面之注意事項再填寫本頁) 經濟部中央樣隼局員工消費合作杜印製 在該粉末供應噴嘴1 3 a之上游側與下游側配設有在 上游點D及下游點E分別將從蒸氣供應裝置之電氣鍋爐 1 4所供應之水蒸氣分別吹進排氣中的蒸氣噴嘴1 4 a， 1 4 b。在此所使用之水蒸氣之溫度爲1 7 0°C ’ 1 5 0 。(：，1 3 0°C之三種類，而水蒸氣之供應量爲6 kg/h ，因供應水蒸氣，因此排氣之水分量爲成爲約3 0 。點 本紙張尺度適用中囷國家標準（CNS ) Λ4規格（210X297公釐）-匕- 經濟部中央橾隼局員工消费合作社印製 A7 B7_ _ 五、發明説明（10 ) A係設於點D與粉末供應噴嘴1 3 a之間的入口導管1 1* 1T r · This paper scale is applicable to the Chinese National Standard (CNS) A4 specification (210X297 ;!) Ministry of Economic Affairs Central Oak Quasi-Bureau Employee Consumption Cooperation Du Printed A7 B7 5. Invention description (5) 6 a will be high M (number Air pressure) water vapor is blown into the exhaust gas in the exhaust temperature range of 50 ° C into the exhaust gas to promote the reaction of the alkaline powder, and to remove the dust in the exhaust gas and the gasification of the exhaust gas The gaseous compounds generated by the reaction between hydrogen or sulfur dioxide and the ash powder, the bag filter 7 of the sulfide dust collector, the exhaust fan 8 and the exhaust smokestack 9 etc. In the above steam supply device 6, the temperature of the water vapor blown into the exhaust gas from the steam supply device 6 is taken as ± 5 0 ° C of the exhaust gas temperature, for example, when the exhaust gas is 150 ° C The temperature is considered to be about 100 to 200 ° C, but at less than 100 ° C, the exhaust temperature will drop and the included moisture will adhere to the filter cloth of the bag filter 7, thus impairing the air permeability and The separation capacity will be reduced, and if it exceeds 200 ° C, the temperature of the exhaust gas will rise and the filter cloth of the bag filter 7 may be damaged. Generally speaking, when the outlet of the furnace is equipped with a "water tube boiler to apply heat recovery, and the cooling tower 3 is sprayed with cooling water to cool it into a boiler-type incinerator that can pass the temperature of the bag filter 7, the moisture content of the exhaust gas is 2 0 ~ 2 5> Moreover, when the heat recovery is not applied by the boiler, and the cooling water is injected into the exhaust gas with the exhaust gas cooling device at the furnace outlet, the water content of the exhaust gas is set About 40%. In addition, when an incinerator using a gas cooler using the heat medium of a water tube boiler as a gas is installed, it is estimated that the water content of the exhaust gas is less than that of a boiler type incinerator. In this way, the water content of the exhaust gas is different according to the cooling method of the exhaust gas, but in these cases, the solid powder is collected by the dust collecting device by blowing in the exhaust gas in the exhaust gas. In this case, according to the exhaust gas The amount of water in it and the reaction efficiency of the emerald powder are different. The higher the water content, the better the reaction efficiency. II — IIII | Binding 〆, (please read the precautions on the back before filling in this page) This paper adopts the Chinese National Standard (CNS) A4 specification (210X 297mm) -8-Staff of Central Falcon Bureau, Ministry of Economic Affairs Consumer Cooperative Printing and Burning A7 B7 V. Description of invention (6) From this point of view, it can also be considered to increase the amount of cooling water blown into the exhaust to increase the moisture content of the exhaust, but it is extremely difficult to increase the moisture uniformly in the overall exhaust However, locally increasing the amount of water will produce water droplets and attach to pipes or machines, which may cause dew point corrosion. In addition, if water droplets adhere to the filter cloth of the bag filter, there is a risk of reducing the filtering capacity of the exhaust gas. However, the present invention is solved by blowing water vapor into the exhaust gas. In this way, at the position where the steam is blown, the exhaust duct 4 between the outlet of the secondary combustion chamber of the garbage incineration lu 1 and the bag filter 7 can obtain a relative effect at any position. However, in any position of the exhaust duct 4, in order to further improve the reaction efficiency, the embodiment of the present invention is for the powder supply nozzle 5A near the upstream side or the downstream side. Explain the exhaust gas treatment method of the above structure. When the cooling tower 3 reduces the temperature of the exhaust gas to about 150 ° C by the injection of cooling water, the effluent powder such as slaked lime is blown into the exhaust gas from the effluent powder supply nozzle 5a. The solid-gas reaction between hydrogen chloride (hydrochloric acid) or sulfur dioxide, 2HC1 Bian Ca (0H) 2- CaCl2 + 2H2〇S Ο 2 + Ca (0H) 2-CaSC) 3 + H2〇 by gasification of hydrogen and sulfur dioxide This produces solid compounds. At this time, the high pressure steam is blown into the atmospheric pressure exhaust gas near the upstream side or the downstream side, and a sudden chemical reaction is applied with a sudden decompression to instantly generate fine water droplets. In this way, the fine water droplets react with an acid gas (especially easily reacted hydrogenated gas, etc.) to produce an acidic liquor (hydrochloric acid, etc.). This liquid and its properties are compatible with the Chinese National Falcon (CNS) A4 specification ( 210X 297mm > -9-^ binding (please read the precautions on the back before filling in this page) 308637 A7 B7 Printed by the Central Consumer ’s Bureau of the Ministry of Economic Affairs Employee Consumer Cooperative V. Invention description (7) Produced by contact of powder The solid-liquid reaction, which is more efficient than the solid-gas reaction, produces solid compounds efficiently. Also, in the part where the air and air of the whale powder come into contact with the steam, fine water droplets are generated and fine water droplets are instantly formed In the state of coexistence with acid gas and powder, the reaction efficiency of the alkaline powder is improved by the solid-liquid reaction. In addition, if the water vapor is easily converted into fine water droplets and the state is effectively made, the temperature of the water vapor becomes The lower one is more effective. It also effectively disperses the emperor powder according to water vapor, thus increasing the contact surface between the emperor powder and the acid gas to promote solid-gas reaction. In the embodiment described above, water vapor is blown into the exhaust gas near the ash powder supply nozzle 5 a to increase the moisture content in the exhaust gas without adversely affecting peripheral devices. The efficiency of the reaction between the acid gas of the gas and the powder is also due to the solid-liquid reaction caused by the coexistence of the fine water droplets generated by the contact between the reduced pressure of the water vapor and the air pressure, and the acid gas and the alkaline powder. As well as the promotion of the solid-gas reaction due to the diffusion effect of the emu powder, and promote the solid-formation reaction to gasify harmful substances such as hydrogen or sulfur dioxide, the bag filter 7 captures the solid compounds. This can increase the exhaust gas The effect of desalination and desulfurization can reduce the amount of test powder used and reduce the operating cost. In addition, as a result, the amount of fly ash trapped by the bag filter 7 can be reduced, thereby reducing the amount of fly ash The amount of medicine used to fix the ash for ash is the amount required for artificial land. Also, the dry washing + bag filter method can be used to capture dioxin. Also, in the above embodiment, the dust collector Use the bag filter 7, but you can also use an electric dust collector instead. (Please read the notes on the back and then fill out this page)-Binding, Ordering, This paper standard is common to China National Standard Falcon (CNS) Α4 specifications (210x'297 Kang Kang) -10A7 B7 5. Description of the invention (8) (Example 1) The experimental device shown in the third circle was used to demonstrate the effect of desalination. The experimental device is the inlet exhaust duct 11 connected to the waste The upstream side of the electric dust collector of the exhaust path of the incineration equipment, and the exhaust gas is introduced into the bag filter 12. The composition of the exhaust gas is shown in Table 1, and its content rate is the volume rate. The exhaust gas at this time is the exhaust gas at the outlet Point B of the duct 15 has a temperature of 170 ° C and an exhaust volume of 7 8 · 8m3 / h (wet gas base). In addition, the inlet duct 11 is provided with a secondary powder supply device 1 3 The supplied powder is blown into the exhaust powder supply nozzle 1 3 a. The powder used here is an example of the use of commercially available slaked lime powder (JIS grade), the supply of which is required to neutralize 80 ppm of hydrogen chloride and 50000 p pm of sulfur dioxide in the exhaust gas. The volume 'is 2 1 5 g / h when no steam is added, and 1 8 8 g / h when steam is added, and the gas volume of the gas supply chamber is 15 liters / mi π (0 ° C, 1 barometric pressure) I . Binding (please read the precautions on the back and then fill out this page) The Central Standard Falcon Bureau of the Ministry of Economic Affairs 4 Consumer Cooperation Du Printed Paper Wave Scale Applies to Chinese National Standard (CNS) A4 Specification (2 丨 0x297 Gongqing) -11 A7 B7 V. Description of the invention (9) Table 1 Content rate of ingredients 0 2 1 2% Η 2 0 2 0% HC 1 8 0 0 ppm S 0 2 5 0 ρ pm N 0 x 6 0 ppm Dust 2 g / m3 ((TC , 1 Atmospheric pressure) — 111! Pack II — Order (please read the notes on the back before filling in this page) Employee consumption cooperation of the Central Falcon Bureau of the Ministry of Economic Affairs is printed on the upstream and downstream sides of the powder supply nozzle 1 3 a Equipped with steam at the upstream point D and downstream point E, respectively, the steam supplied from the electric boiler 14 of the steam supply device is blown into the exhaust gas Gas nozzle 1 4 a, 1 4 b. The temperature of the water vapor used here is 1 7 0 ° C '1 5 0. (:, Three types of 1 3 0 ° C, and the supply of water vapor is 6 kg / h, due to the supply of water vapor, the moisture content of the exhaust gas is about 30. The paper size is applicable to the Chinese National Standard (CNS) Λ4 specification (210X297 mm) -Daggers-Employees of the Central Falcon Bureau of the Ministry of Economic Affairs Printed by the consumer cooperative A7 B7_ _ V. Description of the invention (10) A is an inlet duct 1 1 between point D and the powder supply nozzle 1 3 a
之上游側的鹽酸濃度之計測地點，設有第1計測器2 〇 A 0 袋濾器1 2係在過濾室1 2 a具備兩支直徑1 1 6 mm，長度1295mm之酕製的袋筒（濾布）12b’ 在氣體之入口近旁的測定地點C藉外部加熱器（未予圖示 )調節溫度使排氣溫度成爲約1 7 0°C。又，若在袋筒 1 2 b之表面附著灰塵或消石灰時，則因排氣不容易通過 ，因此在出口排氣導管1 5之點B藉由第2計測器2 0B 來計測排氣流童與鹽酸濃度，俾調節風扇1 6入口之閥的 賭度。又設有計測袋筒1 2 b之通氣阻力的差壓計1 8， 當過濾室1 2 a之入口側側空間與出口側空間之間的差壓 達到1 0 OmmH2〇之時刻，從脈動吹出管1 9將逆洗用 空氣噴射至袋筒1 2 b而給與濾布膨脹，使附著於濾布表 面之灰塵或消石灰掉落。 將在隨著差壓計1 8所計測之時間經過的過濾室 1 2 a之入口側空間與出口側空間之間的差壓，及點a與 點B之鹽酸濃度的變動表示於第4圖。又將在此之評價區 間的鹽酸除去性能表示於表2。脫鹽率係依據①式計算。 脫鹽率=(1 _脈動間之平均出口 HC 1濃度/脈動間之 平均入口 H C 1濃度）X 1 〇 〇 ……① 又，出口之澳度測定係點Β (乾基），\ 口之濃度測 本紙張尺度逡用中國國家標隼（CNS ) Λ4規格（；!1〇Τ^7公釐卜I]— " 7" 裝 訂 (請先閱讀背面之注意事項再填寫本頁) A7 308637 B7 五、發明説明（u ) 定係點A (乾基）。在此所謂脈動間，如第5圖所示，爲 相當於依脈動噴射之剝落間的評價區間。 表 2 實驗例 水蒸氣供應 水蒸氣 水蒸氣溫 脫鹽率 NO 有•無 供應位置 度（°c ) (% ) 1 無 — — 7 5 2 有 D 1 7 Ο 8 7 3 有 D 1 5 Ο 8 6 A 有 D 1 3〇 8 8 5 有 E 1 7 0 8 7 6 有 E 1 5〇 9〇 7 有 E 1 3 0 9 Λ 本紙張尺度適用中國國家標準（CNS ) Λ4規格（210X 297公釐）-- (請先閲讀背面之注意事項再填寫本頁) -裝. 、-° 經濟部中央標準局員工消費合作社印裝 經濟部中央樣隼局員工消費合作社印裝 A7 B7 五、發明説明（u) 依照上述實驗結果，從粉末供應噴嘴1 3 a將消石灰 吹進排氣中，同時，藉由從點D或E吹進水蒸氣，可將脫 鹽率提高約1 〇 %以上。又，·結果，從粉末供應噴嘴 1 3 a下游側的點E吹進水蒸氣者，比從上游側吹進者可 改善數％脫鹽率。又，水蒸氣溫度係溫度愈低則可得到高 脫鹽率之結果，此乃氣送空氣與水蒸氣之間的接觸，瞬間 地生成微細水滴，判明適用低溫之水蒸氣。 _ (實驗例2 ) 其他實施例使用表示於第5圖之裝fi，確認脫鹽效果 ，與求出對於脫鹽劑之供應量（C a比）的脫鹽率之變化 0 在該實·驗裝置，脫鹽劑之鹸性粉末係使用與實驗例1 相同之消石灰粉末（J I S特級）與助劑（消石灰吹進量 之2 0%)，從鹼性粉末供應裝置5供應於_入口排氣導管 1 1內。該供應量係以②式所表示之量；而在第6圖，以 氫氧化鈣之當量比（C a比）表示。 W=QXCX (A/2+B) XI 0_4X7 4/ 2 2 . 4 X ( 1 0 0 / E )............② 式中W:消石灰吹進量 （kg/h) Q:乾排氣流量 （m3N/h) A:HC1實澳度、乾氣體 （ppm) 本紙張尺度適用中國國家標牟（CNS ) A4規格（210X297公釐）-15 I ^ 裝 訂 贫 (請先閲讀背面之注意事項再填寫本頁) 308637 a? B7 五、發明説明（13) B :S Οχ實濃度、乾氣體 (ppm) C :消石灰吹進當置比 E :消石灰純度 (% ) 從該上游側近旁之蒸氣噴嘴1 4 a供應溫度1 7 5°C 之蒸氣使排氣中之水分量上昇約8% (水分2 2〜2 5% —3 0 〜3 2 % )。 袋濾器1 2係在過濾室1 2 a使用直徑1 1 6mm， 長度1 2 9 5mm之4支袋筒1 2 b者。在袋濾器1 2入 口之點G的排氣溫度係1 8 1°C，而蒸氣吹進時係1 7 7 °C，袋筒1 2 B之中間部之排氣溫度係在點Η爲1 7 2°C ，而出口之排氣溫度在點I爲1 6 0 °C，又，排氣之條件 係如表3所示。 —^ϋ n^i In nm a^f m· *^ϋ nn In ^ (請先閲讀背面之注意事項再填寫本頁) 經濟部中央標準局員工消費合作社印裝 本紙浪尺度適用中國D家縣（CNS )八4現格 (210X297公釐）-16 08637 A7 B7 五、發明説明（14) 要素 條件 排氣溫度 140 〜Ι8ι〇〇 水分濃度 2 2 〜2 5 % H C 1澳度 6〇〇 〜llOOpprn S 0 2濃度 3〇 〜60pPrn Ν 0 χ澳度 1 3 0 〜1 8 Qppm C〇濃度 30 〜7 0pPrn 11 n I —裝 訂 (請先閲讀背面之注意事項再填寫本頁) 經濟部中央橾隼局員工消費合作社印聚 依照表示上述實驗例2之結果的第6圖，與未吹進蒸 氣以〇表示之以往的脫鹽性能比較，吹進蒸氣以籲表示之 本發明的脫鹽性能者較優異，尤其是C a比較低時表示較 顯著。例如以脫鹽率約9 3 %作爲目標値時，在以往C a 比爲約2 . 1 ，而在本發明ca比成爲約1 . 3 ，結果可 知可節省約3 8 %之消石灰的消耗量。 本纸张尺度適用中國國家標準（CNSM4规格（2丨0X2打公釐）-17 - A7 B7 五、發明説明（15) 〔圚式之簡單說明〕 第1圖係表示本發明之排氣處理裝置之實施形態的概 略構成圖。 第2圓係表示同排氣處理裝置之排氣導管的一部分剖 面圖。 第3圖係表示實行同排氣處理裝置之實驗1之裝置的 說明圖。 第4圖係表示隨著同實驗裝置之經過時間的過濾室之 差壓，及鹽酸澳度之變動的圖表。 第5圖係表示實行同排氣處理裝置之實驗2之裝置的 說明圖。 第6圖係表示同排氣處理裝置之實驗2之結果的C a 比與脫鹽率之間的關係的圚表。 I 裝 I I 訂 (請先閲讀背面之注意事項再填寫本頁) 經濟部中央樣準局員工消費合作杜印裝 本紙張尺度適用中國國家標隼（CNS ) A4規格（210/297公緣）-18The measurement site of the concentration of hydrochloric acid on the upstream side is equipped with the first measuring device 2 〇A 0 bag filter 1 2 is provided in the filter chamber 1 2 a with two diametic bag tubes (filter Cloth) 12b 'At the measurement point C near the gas inlet, the temperature is adjusted by an external heater (not shown) so that the exhaust temperature becomes approximately 170 ° C. In addition, if dust or slaked lime adheres to the surface of the bag tube 1 2 b, the exhaust gas does not easily pass through. Therefore, at the point B of the outlet exhaust duct 15, the second flow meter 20 B is used to measure the exhaust gas flow rate. With the concentration of hydrochloric acid, adjust the betting degree of the inlet valve of the fan 16. There is also a differential pressure gauge 18 for measuring the ventilation resistance of the bag tube 1 2 b. When the differential pressure between the inlet-side space and the outlet-side space of the filter chamber 12 a reaches 100 mmH2, it is blown out from the pulsation The tube 19 sprays the air for backwashing to the bag tube 12 b to inflate the filter cloth, so that the dust or hydrated lime attached to the surface of the filter cloth falls. Fig. 4 shows the differential pressure between the inlet-side space and the outlet-side space of the filter chamber 1 2a and the change in the hydrochloric acid concentration at points a and B in the time measured by the differential pressure gauge 18 . Table 2 also shows the hydrochloric acid removal performance in the evaluation area. Desalination rate is calculated according to formula ①. Desalination rate = (1 _ Average outlet HC 1 concentration between pulsations / Average inlet HC 1 concentration between pulsations) X 1 〇 ………… ① Also, the degree of determination of the outlet degree is point B (dry basis), the concentration of the mouth The size of the paper used for the test is based on the Chinese National Standard Falcon (CNS) Λ4 specification (;! 10Τ ^ 7 米里卜 I) — " 7 " binding (please read the precautions on the back before filling out this page) A7 308637 B7 V. Description of the invention (u) The fixed point A (dry basis). The so-called pulsation interval, as shown in Figure 5, is the evaluation interval equivalent to the flaking interval sprayed by the pulsation. Table 2 Experimental examples Steam water vapor temperature desalination rate NO Yes • No supply position degree (° c) (%) 1 No — 7 5 2 Yes D 1 7 Ο 8 7 3 Yes D 1 5 Ο 8 6 A Yes D 1 3〇8 8 5 With E 1 7 0 8 7 6 With E 1 5〇9〇7 With E 1 3 0 9 Λ This paper size is applicable to China National Standard (CNS) Λ 4 specifications (210X 297mm)-(please read the back (Notes to fill out this page)-installed.,-° printed by the Ministry of Economic Affairs, Central Bureau of Standards, Employee Consumer Cooperative Printed A7 B7 V. Description of the invention (u) According to the above experimental results, the slaked lime is blown into the exhaust gas from the powder supply nozzle 1 3 a. At the same time, by blowing water vapor from point D or E, the desalination rate can be increased by about 1 〇% or more. Furthermore, as a result, the person who blows in steam from point E on the downstream side of the powder supply nozzle 13 a can improve the desalination rate by several% compared with the one who blows in from the upstream side. Also, the lower the steam temperature is, The result of high desalination rate can be obtained. This is the contact between the air-sending air and water vapor, which instantly generates fine water droplets, and it is found that the water vapor is suitable for low temperature. _ (Experimental Example 2) The use of other examples is shown in Figure 5. Install fi, confirm the desalination effect, and find the change of the desalination rate for the supply of desalting agent (Ca ratio) 0 In this experimental device, the same powder of desalting agent is used as the slaked lime of experimental example 1. Powder (JIS special grade) and auxiliary agent (20% of the blow-in amount of slaked lime) are supplied from the alkaline powder supply device 5 to the inlet exhaust duct 11. The supply amount is the amount represented by formula ②; and In Figure 6, it is expressed as the equivalent ratio of calcium hydroxide (Ca ratio) W = QXCX (A / 2 + B) XI 0_4X7 4/2 2. 4 X (1 0 0 / E) ............ ② Where W: the amount of blown lime (kg / h) Q: Dry exhaust flow rate (m3N / h) A: HC1 real Australian degree, dry gas (ppm) This paper scale is applicable to China ’s national standard (CNS) A4 specification (210X297 mm) -15 I ^ binding poor ( Please read the precautions on the back before filling in this page) 308637 a? B7 V. Description of the invention (13) B: S Οχ actual concentration, dry gas (ppm) C: slaked lime blown into the current ratio E: slaked lime purity (%) Supplying steam with a temperature of 175 ° C from the steam nozzle 14a near the upstream side increases the water content in the exhaust gas by about 8% (moisture 2 2 ~ 2 5% -3 0 ~ 3 2%). The bag filter 1 2 uses 4 bag tubes 1 2 b with a diameter of 1 16 mm and a length of 1 2 9 5 mm in the filter chamber 12 a. The exhaust gas temperature at the point G of the inlet of the bag filter 12 is 18 1 ° C, and it is 1 7 7 ° C when the steam is blown in, and the exhaust temperature of the middle part of the bag tube 1 2 B is 1 at the point H 7 2 ° C, and the exhaust temperature of the outlet at point I is 160 ° C, and the exhaust conditions are shown in Table 3. — ^ Ϋ n ^ i In nm a ^ fm · * ^ ϋ nn In ^ (Please read the precautions on the back before filling out this page) The printed version of the paper is printed by the Staff Consumer Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs. CNS) Eight 4 grids (210X297 mm) -16 08637 A7 B7 V. Description of the invention (14) Elemental conditions Exhaust gas temperature 140 ~ Ι8ι〇〇 Moisture concentration 2 2 ~ 2 5% HC 1 Australian degree 6〇〇 ~ llOOpprn S 0 2 concentration 3〇 ~ 60pPrn Ν 0 χ Australian degree 1 3 0 ～ 1 8 Qppm C〇 concentration 30 ～ 7 0pPrn 11 n I-binding (please read the precautions on the back before filling in this page) Central Ministry of Economic Affairs Falcon According to Fig. 6 showing the results of the above Experimental Example 2, the bureau employee consumer cooperative printed and compared with the conventional desalination performance indicated by 0 without blowing steam, the desalination performance of the present invention blown by steam is better, Especially when Ca is low, it is more significant. For example, when the desalination rate is about 93% as the target value, in the past, the Ca ratio is about 2.1, and in the present invention, the ca ratio becomes about 1.3. As a result, it can be seen that the consumption of slaked lime can be saved by about 38%. This paper scale is applicable to Chinese national standards (CNSM4 specifications (2 丨 0X2 dozen mm) -17-A7 B7 V. Description of the invention (15) [Simple description of the formula] Figure 1 shows the exhaust treatment device of the present invention. A schematic configuration diagram of an embodiment. The second circle is a partial cross-sectional view of an exhaust duct of the same exhaust gas treatment device. The third diagram is an explanatory diagram of a device that performs experiment 1 of the same exhaust gas treatment device. It is a graph showing the differential pressure of the filter chamber with the elapsed time of the same experimental device, and the change of the degree of hydrochloric acid. Figure 5 is an explanatory diagram showing the device of Experiment 2 which is the same as the exhaust gas treatment device. Figure 6 shows the A table showing the relationship between the C a ratio and the desalination rate of the results of Experiment 2 of the exhaust gas treatment device. I Pack II Order (please read the precautions on the back before filling this page) Employee consumption of the Central Bureau of Standards of the Ministry of Economic Affairs The paper size of the cooperation du printed paper is applicable to the Chinese national standard falcon (CNS) A4 specification (210/297 common edge) -18