%\9391 b7 五、發明説明（1 ) 發明背景 1 .發明領域 本發明相關於用於電力產生或類似者的煙道氣脫硫工 廠，其配備有用來去除存在於由於石油，煤，或類似者的 燃燒而產生的排氣中的硫氧化物的煙道氣脫硫器。 2 .相關技術的敘述 從煙道氣脫硫工廠排出的脫硫廢水中的污染物濃度必 須保持在規定的限制位準以下β爲去除存在於脫硫廢水中 的污染物以符合此規定的要求/需要附加去氮設備或類似 者，導致設備成本及操作成本的增加。 另一方面，在藉著供應大童的給水至廢水以減小廢水 中污染物的濃度的情況中，所使用的給水量佔電廠中所用 的總水量的4 0%到6 0%。因此，當工業用水的使用例 如在缺水的情況中受到限制時，變得難以確保給水的供應 〇 另外，區域性的整體污染物控制近來更爲嚴格，因此 變成不可能只藉著稀釋存在於廢水中的污染物來應付。 發明槪說 本發明的目的爲提供一種濕煙道氣脫'硫工廠，可在不 使工廠的構造複雜之下以及在不從外部引入大量的給水之 下，減小從煙道氣脫硫器排出的廢水中的污染物的濃度。 根據本發明，提供一種濕煙道氣脫硫工廠*包含煙道 本紙張尺度適扣中國國家標準（CNS ) Λ4規格（210 X 297公釐） -4 - A7 ... _. B7_____ 五、發明説明（2 ) 氣脫硫器，用來分離及去除存在於從煙道氣脫硫器排出的 脫硫泥漿中的石膏的石膏分離器，用來濃縮從石膏分離器 排出的脫丨硫廢水的蒸發器，以及用來供應從蒸發器排出的 蒸汽或其凝結液至煙道氣脫硫器成爲補充水的供應機構。 本發明的濕煙道氣脫硫工廠可包含用來冷卻從蒸發器 排出的蒸汽的冷卻器。 在上述的濕煙道氣脫硫工廠中，冷卻器可爲使用冷卻 水成爲冷卻機制的裝置，且濕煙道氣脫硫工廠可包含用來 將已通過冷卻器的冷卻水供應至煙道氣脫硫器成爲補充水 的供應機構。 ' 上述的濕煙道氣脫硫工廠可包含用來將由蒸發器濃縮 的脫硫廢水固化的固化器。 在本發明的濕煙道氣脫硫工廠中，從蒸發器排出的蒸 汽或其凝結液與工業用水一樣純。因此，其可被用爲用於 脫硫器的補充水，因而可減少從外部供應的工業用水量》 另外，也可使用已通過冷卻器的冷卻水成爲用於脫硫 器的補充水，因而可減少工業用水量。 經濟部中戎標卑历兵Η消合竹社印褽 圖式簡要敘述 圖1爲顯示本發明的濕煙道氣脫硫工廠的一例子的示 意圖。 圖2爲顯示本發明的濕煙道氣脫硫工廠的另一例子的 示意圖。 本紙張尺度適用中囤囤家標準{ CNS ) Λ4規格（2〗0Χ2ί>7公釐） 4193 91五、發明説明（3 A7 B7 經淨部中戎摞準局負工消费合作社印繁 主 要元件對 照 1 煙道 氣 脫 硫 器 2 排氣 3 純化 氣 體 5 a 工 業 用 水 5 b 工 業 用 水 6 脫硫泥 漿 7 石膏 分 離 器 8 石膏 9 脫硫 廢 水 1 0 分 離 的 液 體 1 1 蒸 發 器 1 2 加 熱 器 1 3 蒸 汽 1 4 濃 縮 物 1 5 蒸 汽 1 6 凝 結 液 1 7 泵 1 9 固 體 物 質 2 0 凝 結 器 2 1 凝 結 液 2 2 凝 結 液 槽 2 3 真 空 泵 3 0 蒸 汽 噴 射 器 {ts先閲讀背面之注意事項再—ώ本頁) 裝·% \ 9391 b7 V. Description of the invention (1) Background of the invention 1. Field of the invention The present invention relates to a flue gas desulfurization plant for electric power generation or the like, which is equipped to remove substances present in oil, coal, or the like. Flue gas desulfurizer for sulfur oxides in the exhaust gas generated by the combustion of a person. 2. Description of related technology The concentration of pollutants in the desulfurization wastewater discharged from the flue gas desulfurization plant must be kept below the specified limit level β In order to remove the pollutants present in the desulfurization wastewater to meet the requirements of this regulation / Requires additional nitrogen removal equipment or the like, resulting in increased equipment costs and operating costs. On the other hand, in the case of reducing the concentration of pollutants in the wastewater by supplying the feedwater of the older child to the wastewater, the amount of water used accounts for 40% to 60% of the total water used in the power plant. Therefore, when the use of industrial water is restricted, for example, in the absence of water, it becomes difficult to ensure the supply of water. In addition, regional overall pollutant control has become stricter recently, so it becomes impossible to exist only by dilution. Pollutants in wastewater to cope. According to the invention, the object of the present invention is to provide a wet flue gas desulfurization plant, which can reduce the desulfurizer from the flue gas without complicating the structure of the plant and without introducing a large amount of water from the outside. The concentration of pollutants in the discharged wastewater. According to the present invention, a wet flue gas desulfurization plant * is provided. The paper containing the flue is suitable for deducting Chinese National Standards (CNS) Λ4 specifications (210 X 297 mm) -4-A7 ... _. B7_____ V. Invention Note (2) A gas desulfurizer, a gypsum separator used to separate and remove gypsum present in the desulfurized slurry discharged from the flue gas desulfurizer, and used to concentrate the desulfurization wastewater discharged from the gypsum separator. The evaporator, and the steam or its condensate discharged from the evaporator to the flue gas desulfurizer become the supply mechanism of supplementary water. The wet flue gas desulfurization plant of the present invention may include a cooler for cooling the steam discharged from the evaporator. In the above wet flue gas desulfurization plant, the cooler may be a device using cooling water as a cooling mechanism, and the wet flue gas desulfurization plant may include a device for supplying cooling water that has passed through the cooler to the flue gas. The desulfurizer becomes a supply mechanism for supplementary water. '' The aforementioned wet flue gas desulfurization plant may include a solidifier for solidifying the desulfurized wastewater concentrated by the evaporator. In the wet flue gas desulfurization plant of the present invention, the steam or its condensate discharged from the evaporator is as pure as industrial water. Therefore, it can be used as make-up water for the desulfurizer, thereby reducing the amount of industrial water supplied from the outside. In addition, the cooling water that has passed through the cooler can also be used as make-up water for the desulfurizer. Can reduce industrial water consumption. Brief Description of the Drawings Figure 1 is a schematic view showing an example of a wet flue gas desulfurization plant according to the present invention. Fig. 2 is a schematic view showing another example of the wet flue gas desulfurization plant of the present invention. This paper standard applies to the standard of the storehouse {CNS) 规格 4 specification (2〗 0 × 2ί > 7 mm) 4193 91 V. Description of the invention (3 A7 B7 Comparison of the main components printed and printed by the Zhongrong Rongzhan Bureau Off-line Consumer Cooperatives of the Ministry of Finance 1 Flue gas desulfurizer 2 Exhaust gas 3 Purified gas 5 a Industrial water 5 b Industrial water 6 Desulfurization slurry 7 Gypsum separator 8 Gypsum 9 Desulfurized wastewater 1 0 Separated liquid 1 1 Evaporator 1 2 Heater 1 3 Steam 1 4 Concentrate 1 5 Steam 1 6 Condensate 1 7 Pump 1 9 Solid matter 2 0 Condenser 2 1 Condensate 2 2 Condensate tank 2 3 Vacuum pump 3 0 Steam ejector {ts Read the precautions on the back first— (Sale of this page)
、1T 餘/- 本紙張尺度適用中國國家標準（CNS ) Λ4規格（2丨Ο X 297公釐） -6 - 經消部中戎標5?-^M工消资合作社印繁 !|V939t a? 五、發明説明（4 ) 3 1 蒸汽 3 2 除氣器1, 1T // This paper size applies to Chinese National Standards (CNS) Λ4 specifications (2 丨 〇 X 297 mm) -6-Zhong Rong Bid 5?-^ M Industrial and Commercial Cooperatives, India, Fanfan! | V939t a V. Description of the invention (4) 3 1 steam 3 2 deaerator
I 較佳實施例的詳細敘述 本發明的濕煙道氣脫硫工廠包含煙道氣脫硫器，用來 分離及去除存在於從煙道氣脫硫器排出的脫硫泥漿中的石 膏的石膏分離器，用來濃縮從石膏分離器排出的脫硫廢水 的蒸發器，以及用來供應從蒸發器排出的蒸汽或其凝結液 至煙道氣脫硫器成爲補充水的供應機構。 煙道氣脫硫器爲用來使由於'石油，煤，或類似者的燃 燒而產生的排氣與鹼·性劑接觸以因而使存在於其內的硫氧 化物（例如二氧化硫）成爲硫_鈣而被去除的裝置" 石膏分離器爲藉著離心分離或真空過濾而分離存在於 脫硫泥漿中的硫酸鈣（石育）的裝置。 蒸發器爲用來加熱已由石膏分離器將石膏去除的脫硫 廢水以將其蒸發及濃縮的裝置。 用來供應從蒸發器排出的蒸汽或其凝結液至煙道氣脫 硫器成爲補充水的供應機構可特定地由管線，泵，及類似 者構成* 爲藉著凝結從蒸發器排出的蒸汽而獲得凝結液，可使 用以冷卻水或類似者來冷卻蒸汽的冷卻器'。已通過冷卻器 的冷卻水可被供應至煙道氣脫硫器成爲補充水<· 由蒸發器濃縮的脫硫廢水可在藉著固化器將其分成固 體物質及分離的水之後棄置。 本紙張尺度適用中國國家標準（CNS ) ^規格（2】_ΟΧ297公釐) ryi (請先閲讀背面之注意事項再^^*本K ) •裝· 訂 tl1939 1 __ 五、發明説明（5 ) 以下參考圖式敘述本發明的濕煙道氣脫硫工廠的數個 實施例。I Detailed description of the preferred embodiment The wet flue gas desulfurization plant of the present invention includes a flue gas desulfurizer for separating and removing gypsum present in the desulfurized slurry discharged from the flue gas desulfurizer A separator, an evaporator for concentrating the desulfurization waste water discharged from the gypsum separator, and a steam or condensate liquid supplied from the evaporator to the flue gas desulfurizer become a supply mechanism for supplementary water. The flue gas desulfurizer is used to contact the exhaust gas generated by the combustion of 'petroleum, coal, or the like with an alkaline agent so that the sulfur oxides (such as sulfur dioxide) present therein become sulfur_ Device for removing calcium " The gypsum separator is a device for separating calcium sulfate (Ishiyu) present in the desulfurized mud by centrifugation or vacuum filtration. The evaporator is a device used to heat the desulfurized wastewater from which gypsum has been removed by a gypsum separator to evaporate and concentrate it. The supply mechanism for supplying the steam discharged from the evaporator or its condensate to the flue gas desulfurizer as supplemental water may be specifically constituted by a pipeline, a pump, and the like * In order to condense the steam discharged from the evaporator, To obtain condensate, a cooler 'can be used to cool the steam with cooling water or the like. The cooling water that has passed through the cooler can be supplied to the flue gas desulfurizer as make-up water < · The desulfurized wastewater concentrated by the evaporator can be discarded after being separated into solid matter and separated water by a solidifier. This paper size applies to Chinese National Standards (CNS) ^ Specifications (2) _〇Χ297mm) ryi (Please read the precautions on the back before ^^ * this K) • Binding and ordering tl1939 1 __ 5. Description of the invention (5) or less Several embodiments of the wet flue gas desulfurization plant of the present invention will be described with reference to the drawings.
I 第一實施例 圖1爲顯示本發明的濕煙道氣脫硫工廠的一例子（第 一實施例）的示意圖。 參考圖1 ，被引入煙道氣脫硫器1內的排氣2在其內 被脫硫，並且從其排出成爲純化氣體3。在煙道氣脫硫器 1中，吸收劑被供應及使用來吸收硫氧化物。另外，爲補 充例如由於廢水的蒸發或取回所'造成的失去的水，工業用 .水5 a適當地供應至'煙道氣脫硫器1成爲補充水。已吸收 存在於排氣2中的二氧化硫的艇硫泥漿6被饋送至石膏分 離器7，脫硫泥漿6在石膏分離器7中被分成石膏8及脫 硫廢水9。脫硫廢水9的一部份轉回至脫硫器1成爲分離 的液體10。其餘的脫硫廢水9被饋送至蒸發器1 1。 經滅.部中次摞革扃頁工消费告竹社印？木 (錆先M讀背面之注意事項再縝珞本頁) 被饋送至蒸發器11的脫硫廢水9藉著泵17而循環 通過蒸發器1 1及加熱器1 2。被引入加熱器1 2的脫硫 廢水9由加熱器1 2加熱，然後在蒸發器1 1中分成蒸汽 1 3及濃縮物1 4 »在加熱器1 2中，蒸汽1 5被供應至 加熱器12，而凝結液16從其排出。濃縮物14被傳遞 至固化器而在固化器處形成爲固體物質1^。另一方面， 從蒸發器1 1排出的蒸汽1 3被傳遞至凝結器2 0。此蒸 汽1 3被凝結器2 0中的工業用水（冷卻水）5 b冷卻， 而所得的凝結液2 1被供應至凝結液槽2 2。另一方面， 本紙張:尺度適用中K國家標準（CNS ) Λ4規格（2! 0 X 297公釐） -8 - 419391 A7 r___ _ B7 . 五、發明説明（6 ) Ξ通過凝結器2 0的冷卻水5 b也被供應至凝結液槽2 2 °真空泵2 3連接於凝結器2 0。凝結液2 1與工業用水 5 b的混丨合物從凝結液槽2 2排出而被引至脫硫器1中成 爲補充水。 I實施例 圖2爲顯示本發明的濕煙道氣脫硫工廠的另一例子（ 第二實施例）的示意圖》此第二實施例除以下所述的部份 外與圖1所示的第一實施例相同。因此，與第一實施例中 所包含的元件相同的元件由與圖1所示者相同的參考數字 標示。如果需要，脫_硫廢水9先藉著除氣器3 2而去除溶 解的氣體（例如空氣及二氧化碳），然後才饋送至蒸發器 11。 從蒸發器11排出的蒸汽13的一部份由蒸汽噴射器 3 0吸收，而其餘的部份被傳遞至凝結器2 0。如果想要 ，可使用真空壓縮機來取代蒸汽噴射器3 0。在蒸汽噴射 器30中，供應自蒸發器11的蒸汽13與供應自外部的 蒸汽3 1綜合，而所得的混合物被引入加熱器1 2。凝結 液1 6從加熱器1 2排出而被供應至凝結液槽2 2。 本紙張尺度適用中國國家標準（CNS ) M规格（210x297公釐） -9-I. First Embodiment FIG. 1 is a schematic view showing an example (first embodiment) of a wet flue gas desulfurization plant according to the present invention. Referring to FIG. 1, the exhaust gas 2 introduced into the flue gas desulfurizer 1 is desulfurized therein, and discharged therefrom into purified gas 3. In the flue gas desulfurizer 1, an absorbent is supplied and used to absorb sulfur oxides. In addition, in order to replenish lost water caused by, for example, evaporation or retrieval of waste water, industrial water 5 a is appropriately supplied to the 'flue gas desulfurizer 1 as supplemental water. The boat sulfur slurry 6 that has absorbed the sulfur dioxide present in the exhaust gas 2 is fed to a gypsum separator 7, and the desulfurization slurry 6 is divided into a gypsum 8 and a desulfurization wastewater 9 in the gypsum separator 7. A part of the desulfurized wastewater 9 is transferred back to the desulfurizer 1 to become a separated liquid 10. The remaining desulfurized wastewater 9 is fed to the evaporator 11. After the destruction of the ministry of leather industry pager consumption reported to the Bamboo Society? Wood (Please read the precautions on the back of this page first, then this page) The desulfurized wastewater 9 fed to the evaporator 11 is circulated through the evaporator 11 and the heater 12 by the pump 17. The desulfurized waste water 9 introduced into the heater 12 is heated by the heater 12 and then divided into steam 1 3 and a concentrate 1 4 in the evaporator 1 1 »In the heater 1 2, steam 15 is supplied to the heater 12, while the condensate 16 is discharged therefrom. The concentrate 14 is transferred to a solidifier and is formed as a solid substance at the solidifier. On the other hand, the steam 13 discharged from the evaporator 11 is transferred to the condenser 20. This steam 13 is cooled by industrial water (cooling water) 5b in the condenser 20, and the obtained condensate 21 is supplied to the condensate tank 22. On the other hand, this paper: The standard applies to the K National Standard (CNS) Λ4 specification (2! 0 X 297 mm) -8-419391 A7 r___ _ B7. 5. Description of the invention (6) Ξ The cooling water 5 b is also supplied to the condensate tank 2 2 ° the vacuum pump 2 3 is connected to the condenser 20. The mixture of the condensate 2 1 and the industrial water 5 b is discharged from the condensate tank 22 and introduced into the desulfurizer 1 to make up water. Embodiment 1 FIG. 2 is a schematic diagram showing another example (second embodiment) of a wet flue gas desulfurization plant according to the present invention. This second embodiment is different from the first embodiment shown in FIG. 1 except for the parts described below. One embodiment is the same. Therefore, the same components as those contained in the first embodiment are designated by the same reference numerals as those shown in FIG. If necessary, the desulfurized wastewater 9 is first removed by the deaerator 32 to dissolve the dissolved gas (such as air and carbon dioxide), and then is fed to the evaporator 11. A part of the steam 13 discharged from the evaporator 11 is absorbed by the steam ejector 30, and the remaining part is transferred to the condenser 20. If desired, use a vacuum compressor instead of the steam ejector 30. In the steam ejector 30, the steam 13 supplied from the evaporator 11 and the steam 3 1 supplied from the outside are combined, and the resulting mixture is introduced into the heater 12. The condensate 16 is discharged from the heater 12 and supplied to the condensate tank 22. This paper size applies to Chinese National Standard (CNS) M specifications (210x297 mm) -9-