0430^ A6 B6 經濟部中央標準局員工消費合作社印製 五、發明説明（1 ) <産業上之利用範圍> 本發明乃關於從氣體流分離灰塵及浮遊物質等，並加 以去除或回收之袋型過濾裝置者；尤其是關於在進行過滤 作業之前，於濾布表面形成預敷濾膜層之預塗膜式袋過滤 裝置者。 <以往之技術> 圖4乃至圖6乃為以往之脈動噴射式（pulsejet)多 室構造形預敷濾膜方式之袋型過濾裝置之概略構成者。 在圖4乃至圖6中，a乃為收容構成袋型過濾裝置之 單位集塵機構，並互相加以區分之殼體（casing);各個 之單位集塵機構，乃由懸掛複數之濾布b之間隔板c ,被 二分割成下部之過濾室d及上部之清淨氣體通路e。 在清淨氣體通路e,亦配設有備有經過連接於未圖示 之空氣壓縮源之開閉閥，向各濾布b內噴射壓縮空氣成脈 動噴射狀所用之複數之噴嘴f1之空氣吹入管f。 過濾室d之下方，則構成粉塵收集用之漏斗室h;其 底部連接有排出粉塵所用之排出機構j。 在漏斗室h外側面，亦配設有導入在未圖示之焚燒爐 或燒毁爐等所發生之灰塵或含有酸性有害氣體等之燃燒氣 體之主煙道k ;在主煙道k之途中，則有從未圖示之有害 氣體去除裝置所輸送之中和用藥劑m,連缠被供給；而藥 劑m與燃燒氣體混合後成為排氣g。 排氣g亦經由從主煙道k按各單位集塵機構被分岐之 (請先閲讀背面之注意ί項再場寫本頁) 丨裝· •11_ -i . 本紙張尺度適用中國國家標準（CNS)甲4规格（210 X 297公釐） -3 - A6 B60430 ^ A6 B6 Printed by the Employee Consumer Cooperative of the Central Bureau of Standards of the Ministry of Economy V. Description of the invention (1) < Scope of use in the industry > The present invention relates to the separation and removal of dust and floating substances from gas streams, etc. A bag-type filter device; especially a pre-coated film bag filter device that forms a pre-applied filter membrane layer on the surface of the filter cloth before performing the filtering operation. < Conventional technology > Figs. 4 to 6 are schematic diagrams of conventional bag-type filter devices of a pulse jet multi-chamber structure pre-filter membrane method. In FIGS. 4 to 6, a is a casing that houses the unit dust collection mechanism that constitutes the bag-type filter device, and is distinguished from each other; each unit dust collection mechanism is formed by hanging a plurality of filter cloth b between the partitions c. It is divided into a filter chamber d in the lower part and a clean gas passage e in the upper part. The clean gas passage e is also equipped with an air blowing pipe f equipped with a plurality of nozzles f1 used to spray compressed air into each filter cloth b into a pulsating spray form through an on-off valve connected to an uncompressed air compression source . Below the filter chamber d, a funnel chamber h for dust collection is formed; at the bottom thereof, a discharge mechanism j for discharging dust is connected. On the outer side of the funnel chamber h, there is also equipped with a main flue k that introduces dust or combustion gases containing acidic harmful gases, etc. that are generated in incinerators or burning furnaces (not shown); on the way of the main flue k , There is a neutralizing agent m delivered from a harmful gas removal device not shown, which is continuously supplied; and the agent m is mixed with combustion gas to become exhaust gas g. The exhaust gas g is also divided by the dust collection mechanism of each unit from the main flue k (please read the note on the back first and then write this page) 丨 Installed • 11_ -i. This paper scale is applicable to the Chinese National Standard (CNS ) A 4 specifications (210 X 297 mm) -3-A6 B6
經濟部中央標準局員工消费合作社印M 五、發明説明（2) 分岐導入導管P,流入各漏斗室；在此中間所含有之酸性 有害氣體與藥劑m，則一面引起中和反應一面到達被懸掛 在過濾室d内之複數之濾布b表面。 完成後述之拂落抖落作業之單位集塵機構，因通氣阻 抗較低故將有較連鑛操業中之其他區域為大量之排氣g集 中流入；並於通過濾布時，由其過濾能力，反應完畢及未 反應之藥劑m將被過濾後附著於表面；而成為過濾、中和 作業主體一部分反應完畢之預敷濾膜層bl (參照圖5) ，將不需要多少時間即可形成。 然後，在此後之通氣中，殘留於排氣g中之酸性有害 氣體，亦與預敷濾膜層b1内之未反應藥劑m引起中和反 應；同時與排氣g —起飛來之灰塵及反應完畢與未反應之 藥劑m,則順次堆積在預敷濾膜層b1表面，而形成粉塵 層b 2 (參照圖5 )。 因此，在排氣g通過該粉塵層b2及預敷濾膜層bl 時，所保有之灰塵將被捕捉；同時因殘存之酸性有害氣體 與未反應之藥劑m接觸，故將高效率進行中和反應而成為 清淨氣體η ,並被排出於清淨氣體通路e。 清淨氣體η亦通過插入於被配設在清淨氣體通路e外 側面之分岐排出導管q之清淨氣體開閉閥r ,並經由排主 導管s,被吸引入未圖示之抽風機，而從未圖示之堙囱被 放出大氣中。 以此狀態繼缠蓮轉，則由持續飛來之燃燒氣體中之灰 塵及反應完畢與未反應之藥劑m,粉塵層b 2將逐漸成長 (請先閲tRk面之注意事項再項寫本頁) i裝· -Tr· --線· 本紙張尺度適用中國國家標準（CNS>甲4規格（210 X 297公货） ^04304 A6 B6 經濟部中央標準局負工消費合作社印製 五、發明説明（3) 而使通氣阻抗增加。於是，將該當之單位集塵機構之清淨 氣體關閉閥r加以閧閉，使排氣g之流入停止後，從空氣 吹入管f將空氣加以噴射；由此將使附著於濾布b表面之 預敷濾膜層b1之堆積之粉塵層b2剝離、掉落。此後， 由於再度開啓清淨氣體開閉閥r,將再使排氣g開始流入 〇 因順次按各單位集塵機構進行此拂落操作，將可去除 附著、堆積於單位集塵機構之各濾布之灰塵，及反應完畢 及未反應之藥劑m等所成之捕集灰。此外，掉落於漏斗室 h之捕集灰，亦由排出機構j，被排出於外部。 <本發明擬解之問題> 在以往之多室構造形預塗膜式袋過濾裝置之情形，形 成預敷濾膜層b1之藥劑m乃被總括供給在主煙道k或未 圖示之前置反應塔。 在此，若進行通氣阻抗增加之單位集塵機構之拂落（ 抖落）動作，則因此區域之通氣阻抗將一舉下降，故排氣 g將集中性地流入此區域，而隨大量之藥劑m;惟隨預敷 濾膜層bl之成長，排氣流量亦降低而藥劑供給量也將自 動降低。 惟因排氣g將大量流入拂落即後之過濾、中和能力最 低之區域，故在預敷濾膜層bl成長以前，灰塵及未反應 之酸性有害氣體將被排出；結果，包括其他繼缠運轉中之 單位集塵機構之裝置全體之灰塵捕捉率及有害氣體去除率 (請先閲讀背面之注意事項再場寫本頁) -裝- 訂. .丨線· 本紙張尺度適用中國國家標準（CNS>甲4規格（210 X 297公釐） —5 一 〇43〇4 A6 B6 經濟部中央標準局貝工消費合作社印製 五、發明説明（4 ) 將暫時降低。 另方面，由於藥劑m將連續被供給，故藥劑m在拂落 (抖落）即後其一部分將被供給至其他區域，在定常蓮轉 時則其全部將被供給至各區域；因此，預敷濾膜層b 1被 形成以後被持鑛供給之未反應藥劑m，乃為過剩部分，並 將助長粉塵增b 2之增大。 因此，由於通氣阻抗之上昇將加快，拂落（抖落）動 作之間隔將縮短，大量排出未反應藥劑之結果，不僅藥劑 費用增加，亦因含有重金屬或戴奧辛（dioxin)類之有害 物質，故將使需要進行無害化處理之捕集灰（排出灰）之 量增加，以致使後處理費用增大。 <解決上述問題之方法> 本發明之預塗膜式袋過濾裝置，乃在進行過濾作業之 前，於設置在袋過濾裝置之氣體流入室内之濾布表面形成 預敷濾膜層，並以脈動噴射方式來進行該預敷濾膜層及堆 積於此預敷濾膜層上之灰塵堆積層所成之附著物之拂落（ 抖落）作業之預塗膜式袋過濾裝置中；前述設置有濾布之 氣體流入室，乃被區劃成複數室之過濾室；同時亦備有按 此等被區劃之各過濾室，個別加以供給藥劑之供給機構等 為構成者。 <作用> 將過濾裝置之氣體流入區劃成複數室之過濾室，在拂 (請先閲讀背面之注意事項再場寫本頁) -裝- 訂. -丨線. 本紙張尺度適用中國國家標準（CNS>甲4规格（210 X 297公辁〉 一 6 - ^04304 A6 B6 經濟部中央標準局員工消費合作社印製 五、發明説明（s) 落（抖落）時則將該當之過濾室之開閉裝置加以關閉，使 向此過濾室之氣體之流入停止後，以脈動噴射方式來拂落 (抖落）附著於濾布之附著物，由此來防止拂落時被剝離 之粉塵再飛散並附著於其他過濾室之濾布。 並且，僅向完成拂落作業之過濾室，由供給機構來供 給必要而充分之量之藥劑，並在短時間內形成負責過濾， 中和作用之預敷濾膜層後，由通氣，即可不致降低去除率 ,從最初即能獲得高性能之灰塵或將浮遊物質之捕捉率及 酸性有害氣體之去除率。 〈實施例〉 下面，參照附圖來説明本發明之一實施例。 圖1及圖2乃表示本發明之預塗膜式袋過濾裝置之概 略構造，圖3則表示濾布表面之附著狀態者。 在圖1及圖2中，1乃為收容構成預塗膜式袋過濾裝 置之複數個之單位集塵機構之殼體（casing);各個單位 集塵機構，乃由懸掛有複數濾布2之間隔板3被區分成： 上部之清淨氣體通路4及下部之氣體流入室5。 前述清淨氣體通路4,乃為經由複數之濾布2連通於 氣髏流入室5之空間；各清淨氣體通路4亦無間隔地被連 通在一起，並經過清淨氣體導管41被連接在未圖示之抽 風機。 在清淨氣體通路4,亦有空氣吹入管6在複數之濾布 2之横排毎1排配設有1支；空氣吹入管6亦經過空氣開 本紙張尺度適用中國國家標準（CNS)甲4规格（210 X 297公釐〉 (請先閲讀背面之注意事項再f本頁) -裝- 訂. -丨線. ς〇43〇^ A6 B6 經濟部中央標準局貝工消費合作社印製 五、發明説明（6 ) 閉閥6 1被連接在空氣管集箱（air header) 6 2 ,並連 接於未圖示之壓縮空氣源。 進一步，在空氣吹入管6下部，亦有向複數之濾布2 内吹入拂落（抖落）用壓縮空氣所用之噴嘴6 3,被配設 成與該濾布2開口部對峙之狀態。此等空氣吹入管6、空 氣開閉閥6 1、空氣管集箱62、噴嘴63及壓縮空氣源 等，乃構成灰塵拂落（抖落）機構。 前述氣體流入室5亦被分割成之由複數之隔壁11所 區劃之複數之過濾室51,及連接在各過濾室51下方而 同樣被區割之漏斗室52;各漏斗室52下部，亦連接有 排出從濾布2被剝離、掉落之粉塵等所用之灰塵排出機構 5 3 〇 在形成於前述複數之漏斗室52間之空間，乃構築有 主煙道7;此主煙道7亦有配管至各漏斗室52之分岐煙 通7 1 0 由上述之主煙道7及分岐煙道71亦構成含塵氣體導 入導管；在各漏斗室5 2 ,則將流入在未圖示之燒毀爐或 焚燒爐所發生之灰塵或含有酸性有害氣體等之排氣81。 在上述被區劃為複數之過濾室51之底部，亦有在拂 落及預敷濾膜層形成時，遮斷排氣81流入之左右一對之 擋板（damper) 72 (開閉裝置），在圖1中實線所示水 平位置至一點鎖線所示垂直位置之間，各被配設成開閉自 如狀態。 並且，在各過濾室51,亦個別配設有供給從未圖示 (請先閲讀背面之注意事項再項寫本頁) -丨裝· 訂. -線. 本紙張尺度適用中國國家標準（CNS)甲4规格（210 X 297公釐） -8 - A6 B6 經濟部中央標準局員工消費合作社印¾ 五、發明説明（7 ) 之有害氣體去除裝置經由藥劑調節閥91被輸送之熟石灰 (hydrated lime)等中和用藥劑92之藥劑供給口 9。 下面說明具有上述構成之本發明之袋過濾裝置之通常 之過濾作業及拂落（抖落）至過濾作業再開為止之動作。 僅對完成後述之拂落（抖落）作業單位集塵機構，開 啓藥劑調節閥91,並從未圖示之有害氣體去除裝置將中 和用藥劑9 2經過藥劑調節閥9 1、藥劑供給口 9、漏斗 室52,供給至複數之濾布2表面，以形成圖3所示僅由 中和用藥劑9 2所成之預敷濾膜層2 1。 如此形成預敷濾膜層21後，關閉藥劑調節閥91, 停止對此單位集塵機構之中和用藥劑9 2之供給後，開啓 擋板72。由此從主煙道進入分岐煙道7 1之排氣8 1, 亦經由擋板72流入漏斗室52,並上昇後通過形成之複 數之濾布2表面之預敷濾膜層2 1。此時，乃將保持於排 氣8 1中之灰塵吸著。過濾在預敷濾膜層2 1 ;同時將同 樣含有之酸性有害氣體，由與中和用藥劑92之中和作用 ，來加以去除而成為清淨氣體82,並被排出至清淨氣體 通路4。 此乃為例如圖2右側所示之單位集塵機構之狀態。 隨此過濾作業之持缠，預敷濾膜層21之表面乃堆積 灰塵，而逐漸形成如圖3所示之灰塵層22;由此灰塵層 22之成長，排氣81之通氣阻坑若增大，則首先關閉該 當之過濾室5 1之擋板72，遮斷向此過濾室5 1内之排 氣8 1之流入。 (請先閲讀背面之注意事項再填寫本頁) 裝· 訂. .線. 本紙張尺度適用中國國家標準（CNS)甲4规格（210 X 297公辁） -9 - •04辦 A6 B6 經濟部中央標準局员工消费合作社印製 五、發明説明（8) 接箸，開啓與此過濾室51相對應之空氣開閉閥61 ，將未圖示之空氣源之壓縮空氣，從噴嘴63向上述過滴 室5 1内之濾布2内作短時間之噴射，則清淨氣體通路4 内之清淨氣體82,乃成為被噴射噴流所誘起之二次氣流 ，而與噴射空氣一起逆流至濾布2内；並由噴射噴流之衝 擊波及二次空氣之逆流效果，將可剝離附著於濾布2表面 之預敷濾膜層2 1及灰塵層2 2所成之捕集灰。 被剝離之附著物乃一旦堆積於擋板72上後，由於將 擋板7 2從實線所示水平位置反轉至一點鎖線所示垂直位 置，將沿漏斗室52之傾斜面掉落至灰塵排出機構53上 ;而由此灰塵排出機構5 3被移送後，被排出於外部。 當上述拂落（抖落）作業完成，將擋板7 2從垂直位 置回復至水平位置使氣體流停止後，從藥劑噴射口 9，與 新鮮空氣一起噴射藥劑9，則由於未圖示之抽風機之吸引 力之幫助，藥劑91將在濾布2表面上形成預敷濾膜層 2 1 (參照圖3 )。 預敷濾膜層21之形成作業終了，則再度將擋板72 從水平位置反轉至垂直位置，由此來再開始過濾作業。 此種動作乃在各過濾室5 1順次進行。 表示此種拂落（抖落）作業之過程者，在圖2中央所 示之單位集塵機構中，乃有：左端之濾布2由於排氣81 之流入被停止，而附著由預敷濾膜層21及灰塵層22所 成之捕集灰之狀態；以及中央之濾布因開啓空氣開閉閥 61,而從噴嘴63噴射壓縮空氣使捕集灰被剝離，粉塵 (請先閲讀背面之注意事項再塡寫本頁) -丨裝. 訂. .線. 本紙張尺度適用中國國家標準（CNS)甲4規格（210 X 297公釐） -10 - 經濟部中央標準局®:工消費合作社印5衣 A6 B6 五、發明説明（9 ) 正在掉落中之狀態；以及右端之濾布2已完成前述拂落（ 抖落）作業之狀態等情形。 此外，擋板72在圖示之例中乃表示兩枚分割之上方 旋轉方式者；惟亦可使用一枚構造或多數分割者，·旋轉方 向則亦可向下方旋轉。 並且，在本例中，及以從燒毁爐或焚燒爐所發生排氣 為例來說明；惟所處理之對象氣體若為空氣亦有效，並亦 可適用於精密作業等之空氣清淨化裝置。 進一步，在本例中，乃將拂落（抖落）作業之開始條 件，以通氣阻抗之增大來說明；惟亦可在清淨氣體通路4 設置排氣濃度計，由中和作用來檢測中和用藥劑92之反 應已完畢；亦可以與通氣阻抗增大之組合來進行。 如此，將拂落（抖落）作業以灰塵之堆積所生通氣阻 抗之增加或藥劑之中和反應完了來進行，而預先將預敷濾 膜層厚作計割性之設計，則可僅將反應完畢之藥劑加以排 出，不僅可謀求藥劑之有效利用，亦可削減所排出之捕集 灰之量，故將可削減成為二次公害發生原因之捕集灰之事 後處理費用。 進一步，在本例中乃將主煙道7以配設在複數之漏斗 …室52所形成之空間為例子來説明；惟主煙道7亦可配設 在各漏斗室5 2之外側部；而為排氣流入控制之用亦設置 有檔板72,惟亦可區割清淨氣體通路4,來進行清淨氣 髏開閉閥所作之排氣流出控制。 本紙張尺度適用中國國家標準（CNS)甲4規格（210 X 297公釐〉 -11 - -裝—-----.玎------^ (#先閲讀背面之注意事項再場寫本頁) Α6 Β6 五、發明説明（10) <發明之效果> 如上面所說明，依據本發明，因將袋型過濾裝置之排 氣室設計成由被區劃成複數室之過濾室所構成之多室構造 ;此外亦由個別設置於各過濾室内之開閉裝置，在拂落作 業及預敷濾膜層形成作業中，阻止排氣流入過濾室内；故 因拂落作業被剝離之附著物將不致再飛散，而附著於其他 過濾室之濾布；不僅拂落效果可提高，同時在預敷濾膜中 ,亦因新鮮藥劑不致來到其他過濾室，可將藥劑使用量抑 制在最小限度，並可削減排出灰量。 並且，依據本發明，由於採取：按構成袋型過濾裝置 之單位集塵機構各配設藥劑調節閥及藥劑供給口，僅對拂 落作業終了之單位集塵機構，供給必要而充分之量之藥劑 ,在短時間内形成負責過濾及中和作用之預敷濾膜層後加 以通氣之方式，故拂落即後之通氣阻抗較低，雖有較多量 之排氣將流入該區域，惟因中和能力最大，故不致如以往 之方式去除率將降低，從最初即可獲得高性能之灰塵或浮 遊物質之捕捉率及酸性有害氣體之去除率，可使裝置全體 之性能穩定持缠下去。 經濟部中央標準局員工消费合作社印5衣 (請先閲面之注意事項再填寫本頁) —裝· —線· <附圖之簡單說明> 〔圖1〕表示本發明之預塗膜式袋過濾裝置之概略構 成之側面投視之斷面圖。 〔圖2〕將表示本發明之預塗膜式袋過濾裝置之概略 構成之正面投梘與圖1之A—A斷面加以合成之圖。 本紙張尺度適用中國國家標準（CNS)甲4规格（210 X 2耵公發) _ JO - -04304 A6 B6 五、發明説明（11) 〔圔3〕表示濾布表面之附著、堆積狀態之放大圖。 〔圖4〕表示以往之預塗膜式袋過濾裝置之概略狀態 之側面投視之斷面圖。 〔圖5〕圔4之B — B斷面圖。 〔圖6〕表示以往之預塗膜式袋過濾裝置之概略狀態 ) 之正面投視之斷面圔9 <附圔中编號之說明〉 2 .........濾布， 2 1 .........預敷濾膜層， 5 1 .........過濾室， 5 2 .........漏斗室， 7 2 .........擋板（開閉裝置）， 9 .........藥劑供給口， 9 2 .........中和用藥劑。 (請先閲讀背面之注意事項再填寫本頁) 經濟部中央標準居負工消费合作社印製 本紙張尺度適用中圉國家標準（CNS)甲4规格（210 X 297公發） -13 -Printed by the Ministry of Economic Affairs, Central Bureau of Standards, Employee Consumer Cooperative M. V. Description of the invention (2) The divergent introduction conduit P flows into each funnel chamber; the acidic harmful gas and the agent m contained in the middle will cause a neutralization reaction while being hung. A plurality of filter cloth b surfaces in the filter chamber d. The unit dust collection mechanism that completes the shake-off and shake-out operation described later, because of the low ventilation resistance, there will be a large amount of exhaust gas g flowing in from other areas in the mining operation; and when passing through the filter cloth, its filtering capacity, The reacted and unreacted drug m will be filtered and attached to the surface; the pre-applied filter membrane layer bl (refer to FIG. 5), which becomes part of the main body of the filtration and neutralization operation, will take less time to form. Then, in the subsequent ventilation, the acidic harmful gas remaining in the exhaust gas g also causes a neutralization reaction with the unreacted agent m in the pre-filter layer b1; at the same time, it reacts with the exhaust gas g-the dust and the take-off The finished and unreacted drug m is deposited on the surface of the pre-filter membrane layer b1 in sequence to form a dust layer b 2 (see FIG. 5). Therefore, when the exhaust gas g passes through the dust layer b2 and the pre-applied filter layer bl, the retained dust will be captured; at the same time, because the remaining acidic harmful gas is in contact with the unreacted drug m, it will be neutralized with high efficiency The reaction becomes clean gas η and is discharged into the clean gas passage e. The clean gas η is also sucked into an unillustrated exhaust fan through the main duct s through the clean gas on-off valve r inserted into the branching discharge duct q arranged on the outer side of the clean gas passage e. The display chimney was released into the atmosphere. In this state, after the lotus turns, the dust in the combustion gas that continues to fly and the reacted and unreacted reagent m, the dust layer b 2 will gradually grow (please read the precautions on the tRk side first and then write this page) ) I installed · -Tr · --Line · This paper scale is applicable to the Chinese National Standard (CNS> A4 specifications (210 X 297 public goods) ^ 04304 A6 B6 Printed by the Ministry of Economic Affairs Central Standards Bureau Negative Consumers Cooperative V. Invention Description (3) The ventilation resistance is increased. Therefore, the clean gas shut-off valve r of the unit dust collection mechanism is coaxed to stop the inflow of the exhaust gas g, and then the air is injected from the air blowing pipe f; The accumulated dust layer b2 of the pre-applied filter layer b1 attached to the surface of the filter cloth b peels off and falls off. After that, the clean gas on-off valve r is opened again, and then the exhaust gas g starts to flow into the machine. This dusting operation can be carried out to remove the dust collected and accumulated in the filter cloth of the unit dust collection mechanism, and the collected ash formed by the reacted and unreacted drug m. In addition, it falls in the funnel chamber h Collecting ash is also discharged by the discharge mechanism j, ≪ Problems to be solved by the present invention > In the case of the conventional multi-chamber structure type pre-coated membrane bag filter device, the medicament m forming the pre-coated membrane layer b1 is collectively supplied to the main flue k Or, the front reaction tower is not shown. Here, if the unit dust collection mechanism with increased ventilation resistance is flicked (shake-off), the ventilation resistance of the area will drop in one fell swoop, so the exhaust gas g will flow in concentratedly In this area, with a large amount of drug m; but with the growth of the pre-applied filter layer bl, the exhaust gas flow rate will also decrease and the supply of drug will also automatically decrease. However, due to the large amount of exhaust gas g will flow into the subsequent filtering, The area with the lowest neutralization capacity, so before the pre-filter layer bl grows, dust and unreacted acidic harmful gases will be discharged; as a result, the dust capture rate of all the devices of the unit dust collection mechanism in the subsequent winding operation and Hazardous gas removal rate (please read the precautions on the back and then write this page)-Binding-Order .. Thread · This paper scale is applicable to the Chinese National Standard (CNS> A 4 specifications (210 X 297 mm) — 5 1 〇43〇4 A6 B6 Ministry of Economic Affairs Printed by the Beigong Consumer Cooperative of the Central Bureau of Standards 5. The description of the invention (4) will be temporarily lowered. On the other hand, since the drug m will be continuously supplied, part of the drug m will be supplied to the other after being shaken (shaking off) In the area, when the steady lotus turns, all of it will be supplied to each area; therefore, the unreacted agent m supplied by the ore holding after the pre-filter layer b 1 is formed is the surplus part and will increase the dust. The increase in 2. Therefore, as the rise in ventilation resistance will be accelerated, the interval between the flicking (shake-off) action will be shortened, and as a result of the large amount of unreacted drugs discharged, not only the cost of the drugs increases, but also due to the inclusion of heavy metals or dioxin Harmful substances, it will increase the amount of collected ash (discharged ash) that needs to be harmless, which will increase the cost of post-treatment. < Method for solving the above problem > The pre-coated membrane bag filter device of the present invention is to form a pre-applied filter membrane layer on the surface of the filter cloth in which the gas provided in the bag filter device flows into the room before performing the filtering operation, and Pre-coated membrane bag filter device for pulsating spray method to perform the flicking (shake-off) operation of the pre-applied filter layer and the deposits deposited on the pre-applied filter layer; The gas flowing into the chamber with filter cloth is a filter chamber divided into plural chambers; at the same time, each filter chamber according to these divisions is provided, and a supply mechanism for supplying chemicals separately is constituted. < Function > The gas inflow of the filter device is divided into a plurality of filter chambers, in the whisk (please read the precautions on the back and then write this page) -installation-order.-丨 Line. This paper size is suitable for China Standards (CNS> A4 specifications (210 X 297 public)> 1 6-^ 04304 A6 B6 Printed by the Employee Consumer Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs V. Description of invention (s) When it falls (shakes), it should be treated as a filter room The opening and closing device is closed to stop the inflow of gas into the filter chamber, and the attachments attached to the filter cloth are flicked (shocked off) by a pulsating spray method, thereby preventing the dust that is peeled off when flying off from being scattered again It is attached to the filter cloth of other filter chambers. In addition, the supply mechanism supplies the necessary and sufficient amount of medicine only to the filter chambers that have completed the falling operation, and forms a pre-application for filtering and neutralization in a short time. After the membrane layer is ventilated, the removal rate will not be reduced, and the high-performance dust or the capture rate of floating substances and the removal rate of acidic harmful gases can be obtained from the beginning. <Examples> The following is explained with reference to the drawings Benfa Figure 1 and Figure 2 show the schematic structure of the pre-coated membrane bag filter device of the present invention, and Figure 3 shows the state of attachment of the filter cloth surface. In Figures 1 and 2, 1 is contained The casings of the multiple unit dust collection mechanisms constituting the pre-coated membrane bag filter device; each unit dust collection mechanism is divided into: the upper clean gas passage 4 and The gas in the lower part flows into the chamber 5. The aforementioned clean gas passage 4 is a space that communicates with the gas skull inflow chamber 5 through a plurality of filter cloths 2; the clean gas passages 4 are also connected together without a gap and pass through the clean gas duct 41 is connected to an extractor fan (not shown). In the clean gas passage 4, there is also an air blowing pipe 6 provided with one in each row of the plural filter cloths 2; the air blowing pipe 6 also passes through the air format The paper size is in accordance with Chinese National Standard (CNS) A4 specifications (210 X 297 mm) (please read the precautions on the back and then this page) -installation-order.-丨 line. Σ〇43〇 ^ A6 B6 Ministry of Economic Affairs Printed by the Beigong Consumer Cooperative of the Central Bureau of Standards V. Description of Invention (6) The closed valve 61 is connected to an air header 6 2 and is connected to a compressed air source (not shown). Further, at the lower part of the air blowing pipe 6, there are also blows into a plurality of filter cloths 2 The nozzle 63 used for the compressed air for falling (shaking off) is arranged to face the opening of the filter cloth 2. This air blowing pipe 6, the air on / off valve 61, the air pipe header 62, the nozzle 63 And compressed air source, etc., constitute a dust-flipping (shake-off) mechanism. The aforementioned gas inflow chamber 5 is also divided into a plurality of filter chambers 51 divided by a plurality of partition walls 11 and connected below each filter chamber 51 and The funnel chamber 52 is also divided; the lower part of each funnel chamber 52 is also connected to a dust discharge mechanism 5 3 for discharging dust and the like that are peeled off and dropped from the filter cloth 2. Among the funnel chambers 52 formed above The space is constructed with a main flue 7; this main flue 7 also has a branched flue pipe 7 1 0 that is piped to each funnel chamber 52. The main flue 7 and the branched flue 71 described above also constitute a dust-containing gas introduction duct; In each funnel chamber 52, it will flow into what happened in a burner or incinerator not shown Dust or exhaust 81 containing acidic harmful gases, etc. At the bottom of the filter chamber 51 which is divided into plurals, there are also a pair of left and right dampers 72 (opening and closing devices) that block the flow of exhaust gas 81 during the falling and pre-coating of the membrane layer. Between the horizontal position shown by the solid line in FIG. 1 and the vertical position shown by the one-point lock line, each is arranged in a state where it can be opened and closed freely. In addition, in each filter room 51, there is also a separate supply (not shown) (please read the precautions on the back and then write this page)-丨 Installation · Order. -Line. This paper standard is applicable to the Chinese National Standard (CNS ) A4 specifications (210 X 297 mm) -8-A6 B6 Printed by the Employees ’Consumer Cooperative of the Central Bureau of Standards of the Ministry of Economic Affairs ⑤ V. Description of invention (7) The hydrated lime (hydrated lime) delivered by the harmful gas removal device through the agent regulating valve 91 ) Wait for the medicine supply port 9 of the medicine 92 for neutralization. Next, the normal filtering operation and the operation until the filtering operation is reopened after the bag filtering device of the present invention having the above-mentioned configuration will be described. Only for the dust-collecting mechanism of the working unit which will be described later, open the medicine regulating valve 91, and neutralize the medicine 9 from the harmful gas removal device not shown 2 2 pass the medicine regulating valve 9 1. The medicine supply port 9 1. The funnel chamber 52 is supplied to the surface of the plurality of filter cloths 2 to form the pre-applied filter membrane layer 21 formed of the neutralizing agent 9 2 shown in FIG. 3. After the pre-filter membrane layer 21 is formed in this manner, the medicine regulating valve 91 is closed, the supply of the neutralizing agent 92 to the unit dust collection mechanism is stopped, and the shutter 72 is opened. As a result, the exhaust gas 8 1 that enters the bifurcated flue 7 1 from the main flue also flows into the funnel chamber 52 through the baffle 72, and after ascending, passes through the pre-applied filter membrane layer 21 on the surface of the plurality of filter cloths 2 formed. At this time, the dust held in the exhaust 81 is absorbed. Filtration is performed on the pre-filter membrane layer 21; at the same time, the acidic harmful gas contained in the same is neutralized by the neutralizing agent 92 to be removed into the clean gas 82, and is discharged to the clean gas passage 4. This is the state of the unit dust collection mechanism shown on the right side of FIG. 2, for example. With the entanglement of this filtering operation, dust is deposited on the surface of the pre-applied filter layer 21, and a dust layer 22 as shown in FIG. 3 is gradually formed; as a result of the growth of the dust layer 22, the ventilation resistance pit of the exhaust 81 increases If it is large, the baffle 72 of the filter chamber 5 1 should be closed first to block the inflow of the exhaust gas 8 1 into the filter chamber 51. (Please read the precautions on the back before filling in this page) Binding · Ordering. Line. This paper size is applicable to the Chinese National Standard (CNS) A 4 specifications (210 X 297 public) -9-• 04 Office A6 B6 Ministry of Economic Affairs Printed by the Central Bureau of Standards' Staff Consumer Cooperative 5. Invention description (8) Then, open the air on / off valve 61 corresponding to the filter chamber 51, and drop the compressed air from the air source (not shown) from the nozzle 63 to the above When the filter cloth 2 in the chamber 51 is sprayed for a short time, the clean gas 82 in the clean gas passage 4 becomes the secondary airflow induced by the spray jet, and flows back into the filter cloth 2 together with the spray air; The ash trapped by the pre-applied filter membrane layer 21 and the dust layer 22 that can be peeled and attached to the surface of the filter cloth 2 can be peeled off by the shock wave of the jet flow and the countercurrent effect of the secondary air. Once the peeled attachments accumulate on the baffle 72, the baffle 72 is reversed from the horizontal position shown by the solid line to the vertical position shown by the one-point lock line, and will fall along the inclined surface of the funnel chamber 52 until the dust is discharged The mechanism 53; and thus the dust discharge mechanism 53 is transferred to the outside after being transferred. When the above-mentioned flicking (shake-off) operation is completed, after returning the baffle 72 from the vertical position to the horizontal position to stop the gas flow, the medicine 9 is sprayed together with the fresh air from the medicine injection port 9, due to the unillustrated pumping With the help of the attraction of the fan, the agent 91 will form a pre-applied filter membrane layer 2 1 on the surface of the filter cloth 2 (refer to FIG. 3). When the formation of the pre-filter membrane layer 21 is completed, the baffle 72 is reversed from the horizontal position to the vertical position again, thereby starting the filtration operation again. This type of operation is performed sequentially in each filter chamber 51. In the unit dust collection mechanism shown in the center of FIG. 2, the process of such a flicking (shaking off) operation is as follows: the filter cloth 2 at the left end is stopped due to the inflow of exhaust 81, and the pre-applied filter membrane is attached The state of the collected ash formed by the layer 21 and the dust layer 22; and the filter cloth in the center is opened by the air opening and closing valve 61, and the compressed air is sprayed from the nozzle 63 to remove the collected ash and dust (please read the precautions on the back first (This page will be written again)--Installed. Ordered ... Lined. This paper scale is applicable to the Chinese National Standard (CNS) A 4 specifications (210 X 297 mm) -10-Central Bureau of Standards of the Ministry of Economy®: Industrial and Consumer Cooperative Printing 5 Clothing A6 B6 5. Description of the invention (9) The state of being dropped; and the state where the filter cloth 2 on the right end has completed the aforementioned flicking (shaking off) operation, etc. In addition, in the example shown in the figure, the baffle 72 is a two-split upper rotation method; however, a single structure or a plurality of splits may be used, and the rotation direction may also be rotated downward. In addition, in this example, and taking the exhaust gas from the burning furnace or incinerator as an example to illustrate; but the gas to be treated is also effective if it is air, and can also be applied to air purification devices for precision operations, etc. . Further, in this example, the starting condition of the flicking (shake off) operation is explained by the increase in ventilation resistance; however, it is also possible to install an exhaust gas concentration meter in the clean gas passage 4 to detect the neutralization effect. The reaction with the agent 92 has been completed; it can also be performed in combination with increased ventilation resistance. In this way, the flicking (shaking off) operation is carried out with the increase of the ventilation resistance caused by the accumulation of dust or the completion of the neutralization reaction of the chemical, and the design of the pre-applied filter layer thickness as a cut-off design can only be Discharging the finished chemical can not only seek the effective use of the chemical, but also reduce the amount of collected ash that is discharged. Therefore, the post-processing costs of the collected ash that can cause secondary pollution can be reduced. Further, in this example, the main flue 7 is exemplified by the space formed in a plurality of funnels ... the chamber 52; however, the main flue 7 can also be disposed outside the side of each funnel chamber 52; For the exhaust inflow control, a baffle plate 72 is also provided, but the clean gas passage 4 can also be cut to perform the exhaust outflow control by the clean gas skull on-off valve. This paper scale is applicable to the Chinese National Standard (CNS) A 4 specifications (210 X 297 mm) -11--installed -------. 玎 ------ ^ (#Read the precautions on the back first (Write this page) Α6 Β6 5. Description of the invention (10) < Effect of the invention > As explained above, according to the present invention, the exhaust chamber of the bag-type filter device is designed as a filter chamber divided into a plurality of chambers The multi-chamber structure formed; in addition, it is also equipped with an opening and closing device that is individually installed in each filter chamber to prevent the exhaust gas from flowing into the filter chamber during the falling operation and the pre-applied filter layer formation operation; therefore, the adhesion is peeled off due to the falling operation The objects will not be scattered any more, but will be attached to the filter cloth of other filter rooms; not only the effect of falling can be improved, but also in the pre-applied filter membrane, because the fresh drugs do not come to other filter rooms, the dosage of drugs can be minimized According to the present invention, according to the present invention, the unit dust collecting mechanism constituting the bag filter device is provided with a medicine regulating valve and a medicine supply port, and only the unit dust collecting mechanism at the end of the falling operation is provided. Supply the necessary and sufficient quantity The medicine is formed in a short time to form a pre-applied filter membrane layer that is responsible for filtration and neutralization and then ventilated. Therefore, the ventilation resistance after the fall is low, although a large amount of exhaust gas will flow into this area, but The neutralization capacity is the largest, so the removal rate will not be reduced as in the past. The capture rate of high-performance dust or floating substances and the removal rate of acidic harmful gases can be obtained from the beginning, which can keep the performance of the whole device stable. Printed 5 garments by the employee consumer cooperative of the Central Bureau of Standards of the Ministry of Economic Affairs (please read the precautions before filling in this page)-outfit ·-line · < brief description of the drawings > [Figure 1] shows the pre-coating film of the present invention The cross-sectional view of the side view of the schematic structure of the bag filter device. [Figure 2] The front projection showing the schematic structure of the pre-coated film bag filter device of the present invention is combined with the A-A cross section of FIG. This paper scale is applicable to the Chinese National Standard (CNS) A 4 specifications (210 X 2 逵 公 发) _ JO--04304 A6 B6 5. Description of the invention (11) [圔 3] indicates the attachment and accumulation of the filter cloth surface An enlarged view of the state. [Figure 4] Table A cross-sectional view of a conventional pre-coated membrane bag filter device in a side view. [Fig. 5] Section B-B of Fig. 4. [Fig. 6] shows a conventional pre-coated membrane bag filter device. (Rough state) The cross-section of the frontal projection of the image 9 < the explanation of the number in the image> 2 ......... filter cloth, 2 1 ......... pre-applied filter membrane Layer, 5 1 ......... filter room, 5 2 ......... funnel room, 7 2 ......... baffle (opening and closing device), 9. ........ medicine supply port, 9 2 ......... neutralizing agent. (Please read the precautions on the back before filling in this page) Printed by the Ministry of Economic Affairs, Central Standards Consumer Labor Cooperatives. This paper scale is applicable to China National Standard (CNS) A 4 specifications (210 X 297 public issue) -13-