201041654 六、發明說明： 【發明所屬之技術領域】 本發明是關於具有移動電極之電氣集塵裝置及刮除裝 置’特別是關於具備在外罩內具有預定之間隔而吊掛之多 數個放電極、和配置於這些放電極的附近並環繞之多數個 集塵極板的電氣集塵裝置及刮除裝置。 ^ 【先前技術】 這種的電氣集塵裝置是作爲用來除去例如火力發電廠 的鍋爐排廢氣、製鐵用各種爐的排廢氣等中之粉塵的電氣 集塵裝置爲眾所皆知，依據圖9〜圖13，說明關於專利文 獻1所示的槪略構造。 在圖9，移動電極式電氣集塵裝置1〇是藉由外罩12 、位於此外罩1 2的下部之漏斗1 3、配設於外罩1 2內之多 數個放電框（放電極）14及多數個移動電極15所構成， G 自入口煙道16導入到外罩12內之排廢氣17藉由電氣集 塵原理被除塵，再從出口煙道18排出。被被捕捉到的粉 塵掉落到漏斗13內，藉由未圖示的機構，自排出口 20取 出。 圖10是圖9的A-A箭號方向圖，在外罩12內，具有 預定之間隔之多數個放電框1 4經由自圖9所示的絕緣體 22垂下的吊框24吊掛著。又，配設有以間隔1個的方式 環繞此放電框14之多數個移動電極15。 圖11是顯示移動電極15的構造之斜視圖，在上部的 -5- 201041654 驅動輪2 6與下部滾子2 8之間’張設有一對的無端鍊條3 0 、30，在此一對的無端鍊條30、30，複數片集麈極板32 在其移動方向的縱長度之中間部33的位置卡止並懸掛著 ，板面沿著氣體的流向配置，全體形成爲環狀。驅動輪26 的驅動軸34是藉由未圖示的驅動機構來旋轉，此驅動軸 34的旋轉被傳達到與驅動輪26嚙合的一對的無端鍊條30 、3 0，而形成前述環之複數片集塵極板3 2以間隔1個的 方式環繞移動於前述放電框14。 圖12是移動電極15下部的配置圖，懸掛於無端鍊條 30並下降之集塵極板32是在下部滾子28的位置返回而轉 向成上升。在隔著此剛上升後的集塵極板32之位置，一 對的旋轉刷子3 6、3 8 (以下，將此一對的旋轉刷子一倂稱 爲刷子手段，以符號4 0加以表示）配置於移動電極1 5的 各路徑。刷子3 6、3 8係爲在旋轉軸植設有金屬製的刷毛 者’其中，刷子3 6是朝順時鐘旋轉而刷子3 8是朝逆時鐘 旋轉，藉以將附著於集塵極板32的表面之粉塵朝下方刷 落。藉由刷子手段40除去了附著於表面的粉塵後之集塵 極板32依次上升，在具有放電框14之放電區域，藉由電 氣集塵的原理’將排廢氣中的粉塵捕捉於其表面後，再次 下降。 然而’前述移動電極15在大規模裝置之情況，數量 會成爲50〜100路徑’需要用來驅動這些之驅動裝置 '及 使刷子手段4 0旋轉驅動之驅動裝置，造成設備成本變得 龐大，又，刷子手段磨損時，由於具有驅動手段，不易使 -6- 201041654 刷子手段之推壓空間變化，爲了確保功能，造成必須花費 刷子手段之更換費用、作業。 在專利文獻2，記載有採用固定式刷子之電氣集塵機 。在此技術中，藉由自重、或配重等讓固定式刷子按壓接 觸於集塵電極的金屬網，來刮除粉塵。 [專利文獻1]日本特開2001 -246286號公報 [專利文獻2]日本特開2003_62486號公報 ❹ 【發明內容】 [發明所欲解決之課題] 但是，當在專利文獻1的電氣集塵裝置採用專利文獻 2的前述固定式刷子，則在專利文獻1的鄰接的集塵極板 彼此之間會產生間隙，故前述固定式刷子會進入到此間隙 ，造成集塵極板的環繞動作之驅動抵抗增加，或在對向配 置於集塵極板的兩面之刷子，進入到前述間隙之刷子彼此 〇 的刷毛糾纏，造成限制環繞動作之虞產生。 又，在藉由自重來將固定式刷子按壓於集塵電極之結 構，因刷子的磨損以及刷子傾倒於集塵電極，造成接觸角 度改變，使得粉塵的剝離性能不穩定，無法掌握正確的刮 除量。且，由於以刷子、配重之自重來確保按壓力，故， 在最初刷子於傾斜的狀態下使用，伴隨使用之刷子的磨損 使得對集塵電極產生更大的傾斜，因此，不易確保大的按 壓範圍（對集塵電極之移動量），無法長期間維持均等的 刮除性能。 201041654 又’在專利文獻1 ’爲大規模的裝置之情況，移動電 極的數量成爲5〇〜100路徑，需要用來驅動這些之驅動裝 置、及使刷子手段4〇旋轉驅動之驅動裝置，造成設備成 本變得龐大，又，刷子手段磨損時，由於具有驅動手段， 不易使刷子手段之推壓範圍變化，爲了確保功能，造成必 須花費刷子手段之更換費用、作業。 又’在專利文獻2，由於爲植毛之固定式刷子，故， 會有無法藉由環繞動作來充分地刮落附著於集塵電極之粉 塵的情況。即，粉塵中會有強力附著於集塵電極者，藉由 植毛的刷子，無法將該粉塵充分地刮落之情況。 本發明是有鑑於前述以往的問題而開發完成的發明， 其目的在於提供可減低關於進行粉塵的刮除之成本，使刮 除性能提升，並且能夠長期間維持均等的刮除性能之電氣 集塵裝置及刮除裝置。 [用以解決課題之手段] 爲了解決前述課題，本發明之電氣集塵裝置，係具備 :使含塵氣體從氣體的入口朝出口流動之外罩；吊掛在成 爲前述外罩內的集塵區域之氣體流路的多數個放電極；以 及藉由懸掛於成對的無端鍊條之複數片集塵極板來形成環 並進行環繞，具有在預定位置擦刷前述環繞的集塵極板的 面之刮除手段的多數個移動電極之移動電極式電氣集塵裝 置，其特徵爲： 前述刮除手段係具備有： -8- 201041654 朝寬度方向延伸並與前述集塵極板的 刷子； 一端安裝有前述刷子，另一端固定在 機構； 經由前述連桿機構，使前述刷子按壓 極板之彈推手段；以及 限制前述刷子的按壓，藉以防止前述 0 的前述集塵極板彼此間之間隙之限制手段 又，爲了解決前述課題，本發明之電 具備有：使含塵氣體從氣體的入口朝出口 掛在成爲前述外罩內的集塵區域之氣體流 極；以及藉由懸掛於成對的無端鍊條之複 成環並進行環繞，具有在預定位置擦刷前 板的面的刮除手段之多數個移動電極的移 塵裝置，其特徵爲： 〇 前述刮除手段具備有： 朝寬度方向延伸並與前述集塵極板的 刷子； 一端安裝有前述刷子，另一端固定在 機構； 經由前述連桿機構，使前述刷子按壓 極板之彈推手段， 前述刷子是傾斜成跨越前述間隙而與 觸的方式安裝於前述連桿機構，用以防止 面接觸之長條狀 固定構件之連桿 接觸於前述集塵 刷子嵌入到鄰接 〇 氣集塵裝置，係 流動之外罩；吊 路的多數個放電 數片集塵極板形 述環繞的集塵極 動電極式電氣集 面接觸之長條狀 固定構件之連桿 接觸於目II述集塵 前述集塵極板接 前述刷子嵌入到 -9 - 201041654 鄰接的前述集塵極板彼此間之間隙。 又，在前述其中任一方所記載的電氣集塵裝置，其中 ，前述連桿機構是以平行四邊形連桿所構成，在前述平行 四邊形連桿的前端與後端分別安裝有前述刷子與前述彈推 手段。 又，在前述其中任一方所記載的電氣集塵裝置，其中 ，前述彈推手段係爲配重，藉由配重的重力使前述連桿機 構轉動，來將前述刷子按壓於前述移動電極板。 又，在前述其中任一方所記載的電氣集塵裝置，其中 ，前述刷子以分成複數個來排列於集塵極板的寬度方向。 又，在前述所記載的電氣集塵裝置，其中，前述彈推 手段是設置於前述各刷子，以個別的彈推力，將分成複數 個所排列的前述各刷子按壓接觸於前述集塵極板。 又，一種刮除裝置，係藉由與被洗淨體相對地移動， 來擦刷被洗淨體的表面之刮除裝置，其特徵爲：具備有： 擦刷前述被洗淨體的表面之刷子；一端安裝有前述刷子， 另一端固定在固定構件之連桿機構；以及經由前述連桿機 構，讓前述刷子按壓接觸於前述被洗淨體之彈推手段。 又，在前述記載的刮除裝置，其中，還具備有：限制 前述刷子對前述被洗淨體的按壓之限制手段。又，在前述 所記載的刮除裝置，其中，前述連桿機構是以平行四邊形 連桿所構成，在前述平行四邊形連桿的前端與後端分別安 裝有前述刷子與前述彈推手段。又，在前述所記載的刮除 裝置，其中，前述彈推手段係爲配重，藉由配重的重力使 -10- 201041654 前述連桿機構轉動，來將前述刷子按壓於前述移動電極板 。又’在前述所記載的刮除裝置，其中，前述刷子以分成 複數個來排列於被洗淨體的寬度方向。又，在前述所記載 的刮除裝置，其中，前述彈推手段是設置於前述各刷子， 以個別的彈推力，將分成複數個所排列的前述各刷子按壓 接觸於前述被洗淨體。 又’爲了解決前述課題，本發明之電氣集塵裝置，係 〇 具備有：具備有：使含塵氣體從氣體的入口朝出口流動之 外罩；吊掛在成爲前述外罩內的集塵區域之氣體流路的多 數個放電極；以及藉由懸掛於成對的無端鍊條之複數片集 塵極板形成環並進行環繞，具有在預定位置擦刷前述環繞 的集塵極板的面的刮除手段之多數個移動電極的電氣集塵 裝置，其特徵爲： 前述刮除手段具備有：朝前述集塵極板的寬度方向延 伸的長條狀，並呈複數段排列配置於環繞方向之刷子；和 〇 使前述刷子按壓接觸於前述集塵極板之彈推手段， 伴隨前述集塵極板的環繞動作，以前述各段的刷子擦 刷前述集塵極板。 又，在前述所記載的電氣集塵裝置，其中，設定成： 前述集塵極板的環繞方向的上游側的段（最初進行擦刷的 段）之刷子的韌性強、下游側的段的刷子的韌性弱。 又，在前述所記載的電氣集塵裝置，其中，前述刷子 中，前述集塵極板的環繞方向的上游側的段（最初進行擦 刷的段）爲板狀刷子，下游側的段爲以多數個毛所構成的 -11 - 201041654 刷子。 又’在前述所記載的電氣集塵裝置，其中 前述刷子嵌入到前述複數片集塵極板的鄰接之 述各段的刷子是傾斜安裝成跨越前述間隙來與 板接觸。 又，在前述記載的電氣集塵裝置，其中， 段進一步具有：爲了防止前述刷子嵌入到前述 極板的鄰接之間隙，而限制使前述刷子朝前述 按壓的限制手段。 又’在前述記載的電氣集塵裝置，其中， 刷子是分成複數個排列於集塵極板的寬度方向 又，在前述記載的電氣集塵裝置，其中， 將排列於集塵極板的環繞方向之複數段的刷子 排列於集塵極板的寬度方向。 又’在前述記載的電氣集塵裝置，其中， 段是以利用個別的彈推力使前述各組的刷子按 述集塵極板的方式針對每個前述組進行設置。 又，一種刮除裝置，係藉由與被洗淨體相 擦刷被洗淨體的表面之刮除裝置，其特徵爲： 來擦刷前述被洗淨體的表面，呈複數段排列配 移動方向之刷子；以及使前述刷子按壓接觸於 體之彈推手段，伴隨前述相對的移動，藉由前 子來擦刷前述被洗淨體。 又，在前述記載的刮除裝置，其中，前述 ，爲了防止 間隙，而前 前述集塵極 前述彈推手 複數片集塵 集塵極板之 前述各段的 〇 前述刷子是 分成複數組 前述彈推手 壓接觸於前 對地移動來 具備有：用 置於相對地 前述被洗淨 述各段的刷 複數段的刷 -12- 201041654 子具有不同的韌性強度，最初對前述被洗淨體進行擦刷的 段係設定成強韌性。又，在前述記載的刮除裝置’其中’ 前述刷子中，最初對前述被洗淨體進行擦刷的段爲板狀刷 子，其他的段爲以多數個毛所構成的刷子。 又，一種電氣集塵裝置，係具備有：使含塵氣體從氣 體的入口朝出口流動之外罩；吊掛在成爲前述外罩內的集 塵區域之氣體流路的多數個放電極；以及藉由懸掛於成對 0 的無端鍊條之複數片集塵極板形成環並進行環繞’具有在 預定位置刷擦前述環繞的集塵極板的面的刮除手段之多數 個移動電極的電氣集塵裝置，其特徵爲：前述刮除手段係 爲朝寬度方向延伸並與前述集塵極板的面接觸之長條狀刷 子。若依據此特徵，被與沿著含麈氣體的流向之前述集塵 極板的面接觸的長條狀刷子所刮落的粉麈，會沿著含塵氣 體的流向而朝後方流動，但是其揚起動作會在傘狀的長條 狀刷子的後方附近被防止，抑制了粉塵的再飛散。 〇 [發明效果] 若依據本發明，能以簡單的結構，減低電氣集塵裝置 的成本，並且提升粉塵的刮除性能，可長期間維持。又， 能以簡單的結構，減低刮除裝置的成本，並且可提升擦刷 被洗淨體的表面之刮除性能，可長期間維持。又，能夠以 後方附近的刷子防止在各場所被刷子所刮落的粉塵的揚起 -13- 201041654 【實施方式】 圖1是本發明的實施例1之下部的配置圖。作 集塵裝置之全體結構是與在前述先前技術中做過說 9〜圖1 3所示者相同’賦予與前述相同符號的構件 相同的要素。 圖1中並列的移動電極15A、15B、15C中， 無端鍊條30並藉由環繞而下降的集塵極板32A、 32C是下部滾子28的位置返回而轉向上升。在夾 升後的集塵極板32A、32B、32C的兩面之位置， 置有刮除手段（刷子手段）4 0 A、4 0 B、4 0 C。 刷子手段4〇A的結構爲具備有：朝寬度方向延 觸於各集塵極板的面之長條狀一對的刷子1、2 ;將 支承於前端之作爲連桿機構的平行四邊形連桿3、4 固定於此連桿的後端之彈推手段（配重）5、6，藉 推手段，將一對的刷子1、2按壓於夾著集塵極板 箭號方向，來刷落附著於集塵極板32A的兩面之粉 子手段40A的前述結構，是與刷子手段40B、40C ^ 圖2是詳細地顯示作爲刷子手段的一例之40A 分。平行四邊形連桿4中，以相互平行的上邊4a 4b是對集塵極板32A呈垂直的方式，下邊4b的後 定於電氣集塵裝置的固定樑（固定構件）7，在前 4a的前端，朝向集塵極板32A固定著長條狀刷子2 述兩邊4a、4b，前方的邊4c與後方的邊4d可自由 連結著，自後方的邊4c之與邊4b之連結支點4e 爲電氣 明的圖 爲顯示 懸掛於 32B ' 持剛上 分別配 伸並接 此刷子 :以及 由此彈 32A之 塵。刷 目同。 的一部 與下邊 端被固 述上邊 1___> /. 。在刖 旋轉地 彎曲並 -14 - 201041654 朝下方延伸，在其下端安裝有配重（彈推手段）6。 配重6是藉由其重力（箭號），將平行四邊形 驅動成其上邊4a朝箭號方向移動。因此，固定於」 之刷子2經由平行四邊形連桿4朝箭號方向被彈推 壓接觸於集塵極板3 2A。此按壓力是藉由配重的重 成獲得適合能以刷子2刮落附著於集塵極板32A的 壓力。 0 前述刷子2係爲將鋼絲狀的金屬毛束縛所構成 刷子，固定於前述邊4a，使得從與集塵極板32A 呈垂直的線’以角度α (0°〜45°)的方式與集塵極] 的進行方向（朝上）傾斜接觸。此刷子2的傾斜角 定成粉塵的刮除效率良好的角度。又，由於經由作 機構之平行四邊形連桿4，故，即使刷子2磨損， 集塵極板3 2Α的方向平行地移動，可將前述角度〇： 一定。 〇 圖13是顯示前述角度^與刮除量的關係之圖 軸顯示刮除後的粉塵的殘餘量（殘餘粉塵厚度）之 相對値），橫軸顯示刮除次數，顯示角度〇:爲（Γ、 6 0 °之情況。由此圖可得知，刮除後的殘餘量，在声 與45°少，而在角度60°大。即，將角度α設定於< ，則可進行效率良好的刮除。這是由於當α越小， 塵極板接觸之刷子的刷毛端數越多之故。 又’藉由調整平行四邊形連桿4的前方的邊4 方的邊4d的豎立角度，可任意地設定刷子2對集 連桿4 :邊4a ，而按 量調整 粉塵之 之金屬 的表面 K 32A 是設 爲連桿 也朝與 保持於 表。縱 高度（ .45°、 与度〇。 〕。〜45。 則與集 c與後 塵極板 -15- 201041654 32A之移動範圍。即，在圖2中，前述兩邊4c' 4d朝左 側傾斜，但是當開始使用時，將其設定成垂直之情況，能 夠獲得自此垂直位置朝前述集塵極板3 2 A之移動範圍，即 使伴隨使用造成刷子磨損，也能在長期間維持刮除性能。 因此，若依據本實施例，藉由以一定角度將刷子2長 期間按壓於集塵極板3 2 A的表面來刮落粉塵，使得從開始 使用起長期間維持一定的刮除量。 又，如圖1、圖2所示’移動電極15是將多數個前述 集塵極板（3 2 A、3 2 B、3 2 C )懸掛於無端鍊條3 0來構成 ，但是，由於當藉由轉動來在下部滾子2 8的位置折返之 際容易動作，而在鄰接的集塵極板3 2 A之間設置預定寬度 的間隙3 1。如前述般’由於前述刷子2是藉由配重6的重 力，始終按壓接觸於集麈極板3 2 A，故，前端的刷毛會進 入到前述間隙3 1 (間隔W )。 在此前端的刷毛稍微進入到間隙3 1之情況不會產生 問題，但是當深深進入時，則會增加集塵極板的環繞動作 的驅動抵抗’或如圖1所示，在集塵極板的兩面相對向地 配置刷子之情況，會有自兩側進入到前述間隙3 1之刷子 彼此的刷毛糾纏而限制環繞動作之虞。 8是用來限制配重6的移動範圍，以防止前述刷子的 刷毛深深進入到前述集塵極板彼此間之間隙之止擋器（限 制手段）。雖然配重6是藉由以平行四邊形的後方的邊4 c 的支點4 e爲中心之轉動’朝圖2的箭號方向移動，但， 此止擋器8是固定於固定構件7 ’來限制此移動^因此， -16- 201041654 雖然配重6藉由重力，始終將刷子2按壓於集塵極板3 2 A 的面，但是，當刷子2通過間隙3 1時’前端的刷毛稍微 進入到間隙3 1，則會朝圖2的箭號方向移動，而下端與止 擋器8抵接，限制其進一步的移動，進而限制了刷子2的 移動。因此，能夠防止刷子2的前端的刷毛深深進入到間 隙31。 圖3是顯示本發明的實施例2的局部斜視圖。在此實 0 施例2，前述長條狀刷子2是朝集塵極板的環繞方向傾斜 而安裝於前述連桿機構，來跨越鄰接的前述集塵極板彼此 間之間隙3 1 (高度W )來與集塵極板的面接觸（與前述 間隙3 1交叉接觸）。藉由此結構，因長條狀刷子2的前 端的刷毛中，長條狀一部分始終與前述集塵極板的面接觸 ，不會深深進入到間隙3 1。即，藉由長條狀刷子2跨越間 隙3 1來與集塵極板的面接觸，能夠讓集塵極板作爲止擋 器來發揮作用。此時的刷子2的傾斜角度是對集塵極板32 Q 的寬度（橫）方向（間隙31的長方向）設定成5°〜45°。 圖4是顯示本發明的實施例3的局部斜視圖。在此實 施例，使2組前述實施例2的長條狀刷子2朝相同方向傾 斜，排列配置於集塵極板32的寬度（橫）方向。橫向排 列的刷子是配置成其刮除範圍若干重疊。2組的平行四邊 形4是以上下的平行的邊4a、4b大致成爲高度的方式固 定於固定構件7，刷子2是傾斜安裝於邊4a。配重6是個 別地設置於各平行四邊形連桿4，能夠對各組的刷子施加 個別的按壓力（彈推力）。 -17- 201041654 當刷子2的長條狀長度過長時，會有產生撓曲，造成 無法充分地確保刷子兩端對集塵極板3 2之按壓力之虞。 若依據本實施例，藉由將刷子2分割成複數個來加以設置 ，因能縮短每個刷子之長度，減少撓曲產生，所以，能夠 將來自於上邊4a之按壓力傳達到刷子長度的全體範圍， 能夠減少刮除不均產生。 ^ 又，由於集塵極板3 2之板面是沿著鍋爐排廢氣的流 向進行配置的，故，寬度方向的一端成爲氣體的上游而另 一端成爲下游，沿著寬度方向，在粉塵厚度上會產生不均 。在本實施例，因可個別地施加各組的刷子的按壓力（彈 推力），所以，可設定成集塵極板的粉塵厚的區域的配重 作成較其他區域重，以提高刮除力，能夠謀求刮除後的粉 塵的殘餘量均等化。 圖5是顯示本發明的實施例4的局部斜視圖。在此實 施例，使2組的長條狀刷子2相互朝相反方向傾斜來排列 配置於集塵極板32的寬度（橫）方向。在圖4的實施例3 ，因使2組的刷子2朝相同方向傾斜，所以會有伴隨環繞 移動，刷子2將集塵極板32按壓於寬度方向的一方而偏 移之傾向。在圖4中，朝逆時鐘方向傾斜的2組的刷子2 ，使集塵極板32朝寬度方向的右側按壓，造成偏右進行 環繞移動之虞產生。在本實施例，因2組的刷子2相互朝 相反方向傾斜，所以，因刷子所產生之對集塵極板的按壓 力互相抵銷，使得前述問題（造成偏右進行環繞移動之虞 )消失。又，各刷子2是傾斜安裝成朝集塵極板3 2的端 -18- 201041654 部下降’在這樣的傾斜，因集塵極板32的粉塵是藉由刷 子2朝集塵極板3 2的兩端方向刮聚而落下，所以，能夠 減少粉塵掉落至平行四邊形4，能夠進一步減少平行四邊 形4的劣化。 再者，前述各實施例是使用平行四邊形連桿作爲連桿 機構，但不限於此，亦可例如僅使用圖2所示的邊4b與 4c’在邊4c的前端設置刷子2。又，使用配重來作爲彈推 0 手段，但亦可使用彈推彈簧來取代配重。 且’在前述實施例，使用限制配重的移動之止擋器來 作爲限制刷子的移動之限制手段，但亦可例如構成爲限制 平行四邊形連桿、刷子之移動範圍。 刖述各實施例說明了關於電氣集塵裝置，但是本發明 亦可適用於其他的被洗淨體，取代集塵極板。其結構如以 下所示（符號是顯示對應部分）。 在藉由與被洗淨體（3 2 )相對地移動，來擦刷被洗淨 〇 體的表面之刮除裝置，具備有：沿著前述被洗淨體的表面 之刷子（1、2); —端安裝有前述刷子，另一端固定在固 定構件之連桿機構（4):以及經由前述連桿機構使前述 刷子按壓接觸於前述被洗淨體之彈推手段（5、6)。在前 述記載的刮除裝置，其中，進一步具有用來限制前述刷子 對前述被洗淨體的按壓之限制手段（8 )。 又，在前述記載的刮除裝置，其中，前述連桿機構是 以平行四邊形連桿（4)所構成，在前述平行四邊形連桿 的前端與後端’分別安裝有前述刷子與前述彈推手段。又 -19- 201041654 ’在前述記載的刮除裝置，其中，前述彈推手段爲配重， 藉由配重的重力’使前述連桿機構轉動來將前述刷子按壓 於前述被洗淨體。又’在前述記載的刮除裝置，其中，前 述刷子係分成複數個並排列於被洗淨體的寬度方向。又， 在前述記載的刮除裝置，其中，前述彈推手段是針對前述 各刷子’以個別的彈推力，將分成複數個所排列的前述各 刷子按壓接觸於前述被洗淨體。又，藉由前述各結構，能 夠獲得與前述電氣集塵裝置的實施例相同的效果。 其次，說明本發明的實施例5。實施例5的移動電極 的下部的配置是與圖1相同，所以省略其說明，以圖6以 後進行說明。 圖6是詳細地顯示圖1所示的刷子手段40的右半部 分。刷子是由沿著集塵極板32的環繞方向（進行方向） 自下游側（圖2中之上側）朝上游側（圖2中之下側，最 初進行擦刷的側）朝依序2a、2b、2c的3段的長條狀刷 子所構成。關於各刷子2a、2b、2c的關連構造，因與圖2 的實施例1相同，在此省略其說明。 在圖6，前述刷子2 a與2 b是將鋼絲狀的金屬的刷毛 束縛而構成之金屬刷子，刷子2c爲以金屬或合成樹脂所 構成的平板（板狀）之刷子。在各刷子的韌性強度，板狀 的刷子2c設定成最強（剛性高）’刷子2a設定成弱（剛 性低），刷子2b設定成位於其中間之強度。藉由這樣的 設定，能夠針對附著於集塵極板3 2的面之粉塵中，將強 硬附著之粉塵，以最初進行擦刷的段（上游側的段）之板 -20- 201041654 狀的刷子2c進行粗刮落’其次’以進行擦刷的段的刷子 2b進行中間之收尾刮落’以最後進行擦刷的段（下游側的 段）之刷子2 a進行最終的收尾刮落’藉此能夠獲得與以 往的旋轉刷子相同的刮落性能。 說明關於前述刷子的韌性強度與刮落的關係。韌性強 的（剛性高）板狀的刷子’雖以強力的壓力接觸於集塵極 板、但密接性少，適合用於刮落硬又大的粉塵’韌性弱的 0 (剛性低）植毛之刷子等，由於雖以弱壓力接觸於集塵極 板但密接性佳，故適合於用來刮落細微的粉塵。因此，利 用以各段的韌性強度不同之刷子，對各種的粉塵連續且複 數次進行刮落，能夠使刮落性能提升。由於集塵極板32 使用流動有含塵排廢氣，故，當間隔時間就立刻會有其他 的粉塵附著。因此，如圖6所示，藉由將韌性強的刷子配 置於上游側來進行粗刮落，然後立刻藉由韌性弱的刷子將 進行粗刮除後殘留的細微的粉塵刮落，藉此全體可獲得高 Q 度的刮除性能。 前述刮落性能在圖1 3亦可確認。圖1 〇是顯示角度α 與刮除量的關係之圖表，但同時也爲顯示刮除次數與刮除 量的關係之圖表。比起第1次刮除後，第2次、第3次之 刮除後的粉塵的殘餘量（殘餘粉塵厚度）之高度減少，特 別是第2次刮除後的殘餘量顯著減少。在本實施例，藉由 3段的刷子2a、2b、2c，當集塵極板32通過時連續地進 行3次的刮除。 圖7是顯示本發明的實施例6的局部斜視圖。在此實 -21 - 201041654 施例’將圖6所不的長條狀刷子2 a、2 c分成複數個並排 列於集塵極板3 2的寬度（橫）方向使其朝集塵極板的進 行方向傾斜者配置成2段配置。橫向排列的刷子是配置成 其刮除範圍若干重疊。 與圖6同樣地，各刷子2 a、2 c固定於平行四邊形連 桿4，各平行四邊形連桿4固定於固定構件7a、7c，又配 重6a、6c安裝於朝後方的邊4d的下方延伸之下端。又， 橫向排列的刷子中，其各配重是以貫通後方的邊4d與下 方的邊4b的連結支點4e之連結軸11a、lid加以連結著 ，針對每各段，以均等且個別的壓力朝集塵極板32按壓 〇 若依據本實施例6，因藉由將刷子2a、2c分割成複數 個並排列設置於橫方向來縮短每個刷子，能減少撓曲，所 以，能夠將來自於上邊4a之按壓力傳達到刷子長度的全 體範圍，能夠減少刮除不均產生。又，能夠針對每個段， 以個別的壓力將刷子按壓於集塵極板，所以可對每個段， 控制刮除量，其全體可設定效率良好的刮除性能。 圖8是顯示本發明的實施例7的局部斜視圖。在此實 施例，將圖6所示的長條狀3段的刷子2a、2b、2c朝集 麈極板3 2的進行方向傾斜，分成5組配置於集塵極板3 2 的寬度（橫）方向。橫向排列的刷子是配置成其刮除範圍 相互若干重疊。 與圖7同樣地，各刷子2 a、2b、2 c是固定於平行四 邊形連桿4，但不同之處在於，各組的3段的刷子是經由 -22- 201041654 連結板9 (以虛線顯示）固定於1個平行四邊形連桿的這 一點。各刷子傾斜固定於連結板9，連結板9固定於平行 四邊形連桿4的上邊4a，又，平行四邊形連桿4的後邊 4d固定於1個固定構件（固定樑）7。又，配重ό是個別 地設置於各組的平行四邊形連桿4，能對各組的刷子’施 加個別的按壓力（彈推力）。 若依據實施例7，藉由將刷子分割成多數個並排列設 0 置於橫方向，能夠將每個刷子作成較實施例2更短，能夠 對各刷子長度的全體範圍充分地確保按壓力。又，由於集 塵極板3 2之板面是沿著鍋爐排廢氣的流向進行配置，故 ，會有寬度方向的一端成爲氣體的上游，而另一端成爲下 游，在沿著寬度方向，所集塵之粉塵厚度產生不均之情況 產生。但在本實施例，因個別地施加各組的刷子的按壓力 (彈推力），所以藉由設定成將集塵極板的粉塵厚的區域 的配重作成更重藉以提高刮除力，使得可謀求刮除後的粉 Q 塵的殘餘量之均等化。 再者，前述各實施例是採用平行四邊形連桿作爲連桿 機構，但晕不限於此，亦可僅採用例如圖2中之邊4b與 4c ’在邊4c的前端設置刷子2。又，雖然使用配重來作爲 彈推手段，亦可採用彈推彈簧來代替配重來作爲彈推手段 〇 且’在前述實施例，採用限制配重的移動之止擋器， 來作爲限制刷子的移動之限制手段，但亦可構成爲例如限 制平行四邊形連桿、刷子之移動範圍。 -23- 201041654 前述各實施例，說明了關於電氣集塵裝置’但本發明 除了集塵極板，亦能適用於其他的被洗淨體。其結構（符 號是顯示對應部分）如以下所示。 一種藉由與被洗淨體（3 2 )相對地移動來擦刷被洗淨 體的表面之刮除裝置，具備有：刷子，其用來擦刷前述被 洗淨體的表面，呈複數段排列配置於相對地移動方向之刷 子（2a、2b、2c );和使前述刷子按壓接觸於前述被洗淨 體之彈推手段（5、6)，伴隨前述相對的移動，藉由前述 各段的刷子來擦刷前述被洗淨體。又，在前述記載的刮除 裝置，其中，前述複數段的刷子具有不同的韌性強度，最 初對前述被洗淨體進行擦刷的段設定成強韌性。又，在前 述記載的刮除裝置’其中’前述刷子中，最初對前述被洗 淨體進行擦刷的段爲板狀刷子（2c )，.其他的段爲以多數 個毛所構成的刷子。又’藉由前述各結構，能夠獲得與前 述電氣集塵裝置的實施例相同的效果。 【圖式簡單說明】 圖1是本發明的實施例1的移動電極的下部的配置圖 〇 圖2是實施例1的刷子手段的詳細圖。 圖3是實施例2的刷子手段的斜視圖。 圖4是實施例3的刷子手段的斜視圖。 圖5是實施例4的刷子手段的斜視圖。 圖6是實施例5的刷子手段的詳細圖。 -24- 201041654 圖7是實施例6的刷子手段的斜視圖。 圖8是實施例7的刷子手段的斜視圖。 圖9是顯示電氣集塵裝置的一般結構之側斷面圖 圖10是圖10的A-A箭號方向圖。 圖11是移動電極的一般結構之斜視圖。 圖12是移動電極的一般的下部的配置圖。 圖13是顯示刷子的角度與刮除量的關係之圖表。 〇 【主要元件符號說明】 1,2 :刷子 2 a〜2 c :刷子 3,4 :平行四邊形連桿 4a :上邊 4b :下邊 4c :前方邊 〇 4d :後方邊 4 e :連結支點 5,6 :彈推手段（配重） 6a，6c :配重 7 :固定樑（固定手段） 7a，7c:固定構件 8 :止擋器（限制手段） lla,lld :連結軸 15A，15B，15C:移動電極 -25- 201041654 3 0 :無端鏈條 3 1 :間隙 32,32A，32B,32C:集塵極板 40A,40B,40C ：刮除手段（刷子手段）[Technical Field] The present invention relates to an electric dust collecting device and a scraping device having a moving electrode, in particular, a plurality of discharge electrodes having a predetermined interval in a casing, And an electric dust collecting device and a scraping device disposed in the vicinity of the discharge electrodes and surrounding the plurality of dust collecting plates. [Prior Art] This type of electric dust collector is known as an electric dust collector for removing dust from boiler exhaust gas such as a thermal power plant, exhaust gas from various furnaces for iron making, and the like. 9 to 13 illustrate the schematic structure shown in Patent Document 1. In Fig. 9, the movable electrode type electric dust collector 1 is a housing 12, a funnel 13 located at a lower portion of the cover 1 2, a plurality of discharge frames (discharge electrodes) 14 disposed in the outer cover 12, and a plurality of The moving electrode 15 is configured such that the exhaust gas 17 introduced into the outer casing 12 from the inlet flue 16 is dedusted by the principle of electrical dust collection and discharged from the outlet flue 18. The captured dust is dropped into the hopper 13 and taken out from the discharge port 20 by a mechanism (not shown). Fig. 10 is a view taken along the line A-A of Fig. 9, in which a plurality of discharge frames 14 having a predetermined interval are suspended by a hanging frame 24 which is suspended from the insulator 22 shown in Fig. 9. Further, a plurality of moving electrodes 15 surrounding the discharge frame 14 are provided at intervals of one. Figure 11 is a perspective view showing the configuration of the moving electrode 15, in which a pair of endless chains 30, 30 are provided between the upper -5 - 201041654 drive wheel 26 and the lower roller 28, in which a pair The endless chains 30 and 30 and the plurality of sets of the drain plates 32 are locked and suspended at the position of the intermediate portion 33 of the longitudinal direction in the moving direction, and the plate faces are arranged along the flow direction of the gas, and are formed in a ring shape as a whole. The drive shaft 34 of the drive wheel 26 is rotated by a drive mechanism (not shown), and the rotation of the drive shaft 34 is transmitted to a pair of endless chains 30, 30 that mesh with the drive wheel 26 to form a plurality of the aforementioned rings. The sheet dust collecting plates 3 2 are circumferentially moved around the discharge frame 14 at intervals of one. Fig. 12 is a view showing the arrangement of the lower portion of the movable electrode 15, and the dust collecting plate 32 suspended from the endless chain 30 and descending is returned at the position of the lower roller 28 and is turned upward. A pair of rotating brushes 36, 38 are placed at positions along the dust collecting plate 32 just after the rise (hereinafter, this pair of rotating brushes is referred to as a brush means, indicated by symbol 40) Each path of the moving electrode 15 is disposed. The brushes 3 6 and 3 8 are made of metal bristles on the rotating shaft. Among them, the brush 36 is rotated clockwise and the brush 38 is rotated counterclockwise, thereby adhering to the dust collecting plate 32. The dust on the surface is brushed down. The dust collecting plate 32 after the dust attached to the surface is removed by the brush means 40 is sequentially raised, and in the discharge region having the discharge frame 14, the dust in the exhaust gas is captured on the surface by the principle of electrical dust collecting. , falling again. However, in the case of a large-scale device, the number of the moving electrodes 15 may become a driving device for driving these drives, and a driving device for rotating the brush means 40, resulting in a large equipment cost. When the brush means is worn, it is difficult to change the pressing space of the brush means by the means of driving, and in order to ensure the function, it is necessary to replace the cost and work of the brush means. Patent Document 2 describes an electric dust collector using a fixed brush. In this technique, a fixed brush is pressed against a metal mesh of a dust collecting electrode by weight, weight, or the like to scrape dust. [Patent Document 1] JP-A-2001-246286 (Patent Document 2) JP-A-2003-62486A SUMMARY OF THE INVENTION [Problems to be Solved by the Invention] However, the electric dust collecting device of Patent Document 1 is employed. In the above-described fixed type brush of Patent Document 2, a gap is formed between the adjacent dust collecting plates of Patent Document 1, so that the fixed brush enters the gap, and the driving action of the surrounding action of the dust collecting plate is resisted. Increasing, or in the opposite direction of the brush disposed on both sides of the dust collecting plate, the brush entering the gap is entangled with the bristles of the brush, thereby causing the occurrence of the restriction of the surrounding motion. Moreover, in the structure in which the fixed brush is pressed against the dust collecting electrode by its own weight, the contact angle is changed due to the abrasion of the brush and the brush is poured on the dust collecting electrode, so that the peeling performance of the dust is unstable, and the correct scraping cannot be grasped. the amount. Moreover, since the pressing force is ensured by the weight of the brush and the weight, the brush is used in an inclined state, and the wear of the brush accompanying the use causes a larger inclination to the dust collecting electrode, so that it is difficult to ensure a large The pressing range (the amount of movement of the dust collecting electrode) does not maintain uniform scraping performance for a long period of time. 201041654 In the case where the patent document 1 is a large-scale device, the number of moving electrodes is 5 〇 to 100, and a driving device for driving these and a driving device for driving the brush device 4 需要 are required to cause the device. In addition, when the brush means wears out, the driving means does not easily change the pressing range of the brush means, and in order to secure the function, it is necessary to replace the cost and work of the brush means. Further, in Patent Document 2, since it is a fixed brush for planting hair, there is a possibility that the dust adhering to the dust collecting electrode cannot be sufficiently scraped by the surrounding operation. In other words, in the dust, there is a strong adhesion to the dust collecting electrode, and the dust cannot be sufficiently scraped off by the brush for planting the hair. The present invention has been developed in view of the above-described conventional problems, and an object of the invention is to provide an electric dust collecting device capable of reducing the cost of scraping dust, improving scraping performance, and maintaining uniform scraping performance for a long period of time. Device and scraping device. [Means for Solving the Problems] In order to solve the above problems, the electric dust collector of the present invention includes a cover that allows a dust-containing gas to flow from an inlet of the gas to an outlet, and is hung on a dust collecting area that is inside the outer cover. a plurality of discharge electrodes of the gas flow path; and forming a ring by surrounding a plurality of dust collecting plates suspended from the pair of endless chains, and having a surface scraping the surface of the surrounding dust collecting plate at a predetermined position A moving electrode type electric dust collecting device of a plurality of movable electrodes of the method, characterized in that: the scraping means is provided with: -8- 201041654 a brush extending in a width direction and a dust collecting plate; a brush, the other end of which is fixed to the mechanism; a pushing means for pressing the brush to the electrode plate via the link mechanism; and a restriction means for restricting the pressing of the brush to prevent the gap between the dust collecting plates of the 0 In order to solve the above problems, the electric power of the present invention includes: arranging a dust-containing gas from an inlet of a gas toward an outlet to a dust collecting area in the outer casing a gas flow electrode; and a dust moving device of a plurality of moving electrodes having a scraping means for rubbing the surface of the front plate at a predetermined position by hanging on a loop of the paired endless chain and surrounding the ring, characterized in that: The scraping means includes: a brush extending toward the width direction and the brush of the dust collecting plate; the brush is attached to one end, and the other end is fixed to the mechanism; and the pushing means for pressing the brush to the electrode plate via the link mechanism The brush is attached to the link mechanism so as to be inclined to cross the gap, and the link of the elongated fixing member for preventing surface contact is in contact with the dust collecting brush to be embedded in the adjacent helium gas collecting device. a flow outer cover; a plurality of discharges of a plurality of pieces of the dust collecting plate, and a connecting rod of the long strip-shaped fixing member of the dust collecting pole electrode type electric collector surface contact is in contact with the dust collection The plate is inserted into the gap between the aforementioned dust collecting plates adjacent to the -9 - 201041654. Further, in the electric dust collector according to any one of the preceding claims, the link mechanism is a parallelogram link, and the brush and the spring push are respectively attached to a front end and a rear end of the parallelogram link. means. In the electric dust collector according to any one of the preceding claims, the elastic pushing means is a counterweight, and the link mechanism is rotated by gravity of the counterweight to press the brush against the moving electrode plate. In the electric dust collector according to any one of the preceding claims, the brush is arranged in a plurality of rows in the width direction of the dust collecting plate. Further, in the electric dust collector according to the above aspect of the invention, the elastic pushing means is provided in each of the brushes, and the plurality of arranged brushes are pressed into contact with the dust collecting plate by an individual elastic thrust. Further, a scraping device is a scraping device that wipes a surface of a body to be cleaned by moving relative to a body to be cleaned, and is characterized in that: the surface of the body to be cleaned is wiped a brush; a link mechanism to which the brush is attached at one end, and the other end is fixed to the fixing member; and a pushing means for pressing the brush to contact the cleaned body via the link mechanism. Moreover, the scraping device described above further includes means for restricting the pressing of the brush by the brush. Further, in the above-described scraping device, the link mechanism is constituted by a parallelogram link, and the brush and the spring pushing means are respectively attached to the front end and the rear end of the parallelogram link. Further, in the above-described scraping device, the ejecting means is a counterweight, and the link mechanism is rotated by the gravity of the weight to press the link mechanism to the moving electrode plate. Further, in the above-described scraping device, the brush is arranged in a plurality of rows in the width direction of the object to be cleaned. Further, in the scraping device according to the above aspect of the invention, the above-described ejecting means is provided in each of the brushes, and each of the plurality of arranged brushes is pressed into contact with the object to be cleaned by an individual elastic force. In order to solve the above-mentioned problems, the electric dust collector of the present invention is provided with a cover that allows the dust-containing gas to flow from the inlet of the gas to the outlet, and a gas that is suspended in the dust collecting area in the outer cover. a plurality of discharge electrodes of the flow path; and a scraping means for wiping the surface of the surrounding dust collecting plate at a predetermined position by forming a loop by a plurality of dust collecting plates suspended from the pair of endless chains An electric dust collecting device of a plurality of moving electrodes, characterized in that: the scraping means includes a long strip extending in a width direction of the dust collecting plate, and arranged in a plurality of rows in a circumferential direction; and The spring pushing means for pressing the brush against the dust collecting plate, and brushing the dust collecting plate with the brush of each of the stages along with the surrounding operation of the dust collecting plate. Further, in the electric dust collector according to the above aspect of the invention, the brush on the upstream side of the circumferential direction of the dust collecting plate (the portion in which the first brushing is performed) has a strong toughness and a brush on the downstream side. The resilience is weak. Further, in the electric dust collector according to the above aspect of the invention, in the brush, a segment on the upstream side in the circumferential direction of the dust collecting plate (a segment in which the first brushing is performed) is a plate brush, and a segment on the downstream side is Most of the hair is composed of -11 - 201041654 brushes. Further, in the electric dust collector according to the above aspect, the brush in which the brush is fitted to each of the plurality of dust collecting plates adjacent to each other is obliquely mounted so as to be in contact with the plate across the gap. Further, in the electric dust collector according to the above aspect of the invention, the segment further includes means for restricting the pressing of the brush toward the gap in order to prevent the brush from being inserted into the gap between the electrodes. In the electric dust collector according to the above aspect, the brush is divided into a plurality of electric dust collecting devices arranged in the width direction of the dust collecting plate, and the electric dust collecting device is arranged in the circumferential direction of the dust collecting plate. The plurality of brushes are arranged in the width direction of the dust collecting plate. Further, in the electric dust collector according to the above aspect, the segments are provided for each of the groups so that the brushes of the respective groups are arranged as the dust collecting plates by an individual elastic force. Further, a scraping device is a scraping device that wipes a surface of a body to be cleaned by washing with a body to be cleaned, and is characterized in that: the surface of the body to be cleaned is wiped and arranged in a plurality of stages. a brush for the direction; and a spring pushing means for pressing the brush against the body, and the front body is used to wipe the body to be cleaned by the relative movement. Further, in the above-described scraping device, in order to prevent a gap, the aforementioned brush of the plurality of dust collecting and dust collecting plates of the front end of the dust collecting electrode is divided into a plurality of the aforementioned pushes. The pressure contact is moved forward to the ground to have a different toughness by using a brush -12-201041654 placed in a plurality of brush segments of the above-mentioned washed segments, and the first cleaned body is first wiped. The segment is set to be strong and tough. Further, in the above-described scraping device 'in the above brush', the first brush for wiping the object to be cleaned is a plate-shaped brush, and the other segments are brushes composed of a plurality of hairs. Further, an electric dust collecting device includes: a cover that allows a dust-containing gas to flow from an inlet of the gas toward an outlet; and a plurality of discharge electrodes that are suspended from a gas flow path that is a dust collecting region in the outer cover; An electric dust collecting device that suspends a plurality of moving electrodes of a pair of endless chains of 0 pairs to form a loop and surrounds a plurality of moving electrodes having a scraping means for rubbing the surface of the surrounding dust collecting plate at a predetermined position The scraping means is a long strip brush extending in the width direction and in contact with the surface of the dust collecting plate. According to this feature, the dust which is scraped off by the long brush which is in contact with the surface of the dust collecting plate which flows along the flow of the helium gas flows backward along the flow direction of the dust-containing gas, but The lifting action is prevented in the vicinity of the rear of the umbrella-shaped long brush, and the re-scattering of the dust is suppressed. 〇 [Effect of the Invention] According to the present invention, the cost of the electric dust collector can be reduced with a simple structure, and the scraping performance of the dust can be improved, and it can be maintained for a long period of time. Further, the cost of the scraping device can be reduced with a simple structure, and the scraping performance of the surface of the object to be cleaned can be improved, and it can be maintained for a long period of time. Further, it is possible to prevent the dust from being scraped off by the brush in each place by the brush in the vicinity of the rear surface - 13 - 201041654 [Embodiment] FIG. 1 is a layout view of the lower part of the first embodiment of the present invention. The overall structure of the dust collecting device is the same as that of the members of the same reference numerals as those of the above-mentioned prior art. In the moving electrodes 15A, 15B, and 15C juxtaposed in Fig. 1, the endless chain 30 and the dust collecting plates 32A and 32C which are lowered by the circumference are turned back by the position return of the lower roller 28. At the positions on both sides of the collected dust collecting plates 32A, 32B, and 32C, scraping means (brush means) 4 0 A, 4 0 B, and 4 0 C are placed. The brush means 4A is configured to include a pair of elongated brushes 1 and 2 that extend toward the surface of each of the dust collecting plates in the width direction, and a parallelogram connecting rod that is supported as a link mechanism at the front end. 3, 4 The pinning means (weight) 5, 6 fixed at the rear end of the connecting rod, by means of a push, pressing a pair of brushes 1, 2 against the direction of the arrow of the dust collecting plate, to brush down The above-described configuration of the powder means 40A attached to both surfaces of the dust collecting plate 32A is the 40A points which are an example of a brush means in detail with the brush means 40B and 40C. In the parallelogram link 4, the upper sides 4a to 4b parallel to each other are perpendicular to the dust collecting plate 32A, and the lower side 4b is fixed to the fixing beam (fixing member) 7 of the electric dust collector, at the front end of the front 4a. The long brush 4 is fixed to the dust collecting plate 32A, and the two sides 4a and 4b are described. The front side 4c and the rear side 4d are freely coupled, and the connecting fulcrum 4e from the rear side 4c and the side 4b is electric The figure shows that the suspension is attached to the 32B' holding and the brush is respectively attached: and the dust of the 32A is thus played. Brush the same. One and the lower end are fixed on the upper side 1___> /. The 刖 is rotated and bent and -14 - 201041654 extends downward, and a counterweight (bouncing means) 6 is attached to the lower end. The counterweight 6 is driven by its gravity (arrow) to move the parallelogram to its upper side 4a in the direction of the arrow. Therefore, the brush 2 fixed thereto is elastically pressed into contact with the dust collecting plate 3 2A via the parallelogram link 4 in the direction of the arrow. This pressing force is obtained by reforming the counterweight to obtain a pressure suitable for scraping off the dust adhering to the dust collecting plate 32A by the brush 2. 0 The brush 2 is formed by binding a wire-shaped metal hair, and is fixed to the side 4a so that the line ' perpendicular to the dust collecting plate 32A is at an angle α (0° to 45°) and set. The dust electrode is tilted in the direction of the direction (upward). The inclination angle of this brush 2 is set to an angle at which the dust scraping efficiency is good. Further, since the parallelogram link 4 is passed through the mechanism, even if the brush 2 is worn, the direction of the dust collecting plate 3 2 平行 is moved in parallel, and the angle 〇 can be made constant. Figure 13 is a graph showing the relationship between the aforementioned angle ^ and the amount of scraping, and the graph shows the relative amount of residual dust (residual dust thickness) after scraping. The horizontal axis shows the number of scraping times, and the display angle is: (Γ In the case of 60 °. It can be seen from this figure that the residual amount after scraping is less than 45° in sound and 60° in angle. That is, the angle α is set at < , an efficient scraping can be performed. This is because the smaller the α, the more the number of brush ends of the brush that the dust plate contacts. Further, by adjusting the vertical angle of the side 4d of the side 4 of the front side of the parallelogram link 4, the brush 2 can be arbitrarily set to the side of the collecting link 4: the side 4a, and the surface of the metal of the dust is adjusted by the amount K 32A It is set to keep the link and keep it on the table. Vertical height (.45°, degree 〇.)~45. Then the movement range of the set c and the rear dust plate-15-201041654 32A. That is, in Fig. 2, the aforementioned two sides 4c' 4d are inclined to the left side, but When it is used, when it is set to be vertical, the range of movement from the vertical position toward the dust collecting plate 3 2 A can be obtained, and the scraping performance can be maintained for a long period of time even if the brush wears accompanying use. According to the present embodiment, the dust is scraped off by pressing the brush 2 against the surface of the dust collecting plate 3 2 A for a long period of time at a certain angle, so that a certain amount of scraping is maintained for a long period from the start of use. The moving electrode 15 shown in Fig. 1 and Fig. 2 is constructed by suspending a plurality of the dust collecting plates (3 2 A, 3 2 B, and 3 2 C) on the endless chain 30, but since it is rotated by When the position of the lower roller 28 is folded back, it is easy to operate, and a gap 3 1 of a predetermined width is provided between the adjacent dust collecting plates 3 2 A. As described above, the brush 2 is by the counterweight 6 Gravity, always press and contact the collector plate 3 2 A, so the front end of the bristles It will enter the aforementioned gap 3 1 (interval W). There is no problem in the case where the bristles of the front end slightly enter the gap 31, but when deep entering, the driving resistance of the surrounding action of the dust collecting plate is increased' Or, as shown in Fig. 1, in the case where the brushes are disposed opposite to each other on both sides of the dust collecting plate, the bristles of the brushes entering the gap 31 from both sides are entangled to restrict the surrounding motion. Limiting the range of movement of the weight 6 to prevent the bristles of the aforementioned brush from deeply entering the stopper (restriction means) of the gap between the dust collecting plates. Although the weight 6 is by the rear side of the parallelogram 4 c fulcrum 4 e is the center of rotation 'moves toward the arrow of Figure 2, but this stopper 8 is fixed to the fixing member 7' to limit this movement ^ Therefore, -16- 201041654 By gravity, the brush 2 is always pressed against the face of the dust collecting plate 3 2 A, but when the brush 2 passes the gap 3 1 'the bristles of the front end slightly enter the gap 3 1, and move toward the arrow of FIG. 2 And the lower end abuts the stopper 8, limiting it The one-step movement further restricts the movement of the brush 2. Therefore, it is possible to prevent the bristles of the front end of the brush 2 from entering the gap 31 deeply. Fig. 3 is a partial perspective view showing the second embodiment of the present invention. 2, the long strip brush 2 is attached to the link mechanism so as to be inclined toward the circumferential direction of the dust collecting plate, and spans the gap 3 1 (height W) between the adjacent dust collecting plates and the dust collecting pole The surface contact of the plate (cross-contact with the gap 31). With this configuration, in the bristles of the front end of the long brush 2, a long strip portion is always in contact with the surface of the dust collecting plate, and is not deep. Enter the gap 3 1 . That is, the long brush 2 is brought into contact with the surface of the dust collecting plate across the gap 31, and the dust collecting plate can function as a stopper. The inclination angle of the brush 2 at this time is set to 5 to 45 degrees in the width (horizontal) direction (longitudinal direction of the gap 31) of the dust collecting plate 32 Q. Fig. 4 is a partial perspective view showing a third embodiment of the present invention. In this embodiment, the two sets of the long-length brushes 2 of the second embodiment are inclined in the same direction, and arranged in the width (horizontal) direction of the dust collecting plate 32. The horizontally arranged brushes are configured to have several overlaps in their scraping range. The two parallelograms 4 are fixed to the fixing member 7 such that the parallel sides 4a and 4b above and below are substantially heighted, and the brush 2 is attached to the side 4a obliquely. The counterweights 6 are separately provided to the respective parallelogram links 4, and individual pressing forces (elastic thrusts) can be applied to the brushes of the respective groups. -17- 201041654 When the length of the long strip of the brush 2 is too long, deflection may occur, which may not sufficiently ensure the pressing force of the both ends of the brush against the dust collecting plate 3 2 . According to the present embodiment, by dividing the brush 2 into a plurality of pieces, since the length of each brush can be shortened and the occurrence of deflection is reduced, the pressing force from the upper side 4a can be transmitted to the entire length of the brush. The range can reduce the occurrence of scraping unevenness. ^ Further, since the plate surface of the dust collecting plate 32 is disposed along the flow direction of the exhaust gas of the boiler exhaust, one end in the width direction becomes the upstream of the gas and the other end becomes the downstream, along the width direction, on the dust thickness. Will produce unevenness. In the present embodiment, since the pressing force (elastic thrust) of each set of the brushes can be individually applied, the weight of the dusty region of the dust collecting plate can be set to be heavier than other regions to improve the scraping force. It is possible to equalize the residual amount of dust after scraping. Fig. 5 is a partial perspective view showing a fourth embodiment of the present invention. In this embodiment, the long strips 2 of the two sets are inclined in the opposite directions, and arranged in the width (horizontal) direction of the dust collecting plate 32. In the third embodiment of Fig. 4, since the brushes 2 of the two groups are inclined in the same direction, the brush 2 tends to be biased by pressing the dust collecting plate 32 against the width direction. In Fig. 4, the two sets of the brushes 2 which are inclined in the counterclockwise direction press the dust collecting plate 32 toward the right side in the width direction, causing the occurrence of a wrap around the right side. In the present embodiment, since the brushes 2 of the two groups are inclined in opposite directions to each other, the pressing force generated by the brush against the dust collecting plates cancels each other, so that the aforementioned problem (the ridge that causes the rightward moving around) disappears. . Further, each of the brushes 2 is obliquely mounted so as to descend toward the end -18 - 201041654 of the dust collecting plate 3 2 at such a tilt, since the dust of the dust collecting plate 32 is directed toward the dust collecting plate 3 by the brush 2 The both ends are scraped and dropped, so that the dust can be reduced to the parallelogram 4, and the deterioration of the parallelogram 4 can be further reduced. Further, in the above embodiments, the parallelogram link is used as the link mechanism, but the present invention is not limited thereto, and the brush 2 may be provided at the tip end of the side 4c using only the sides 4b and 4c' shown in Fig. 2, for example. Also, the counterweight is used as the push-pull 0 means, but a pop-up spring can also be used instead of the counterweight. Further, in the foregoing embodiment, the stopper for restricting the movement of the weight is used as a means for restricting the movement of the brush, but it may be configured, for example, to limit the range of movement of the parallelogram link and the brush. Although the various embodiments have been described with respect to the electric dust collecting device, the present invention is also applicable to other washed bodies instead of the dust collecting plates. Its structure is as follows (the symbol is the corresponding part). A scraping device that wipes the surface of the cleaned body by moving relative to the object to be cleaned (3 2 ), and includes a brush (1, 2) along the surface of the body to be cleaned The link mechanism (4) to which the brush is attached to the end and the other end is fixed to the fixing member: and the elastic pushing means (5, 6) for pressing the brush to the cleaned body via the link mechanism. The scraping device according to the above aspect further includes a restricting means (8) for restricting the pressing of the brush by the brush. Further, in the above-described scraping device, the link mechanism is constituted by a parallelogram link (4), and the brush and the spring pushing means are attached to a front end and a rear end of the parallelogram link, respectively. . In the above-described scraping device, the above-described ejecting means is a counterweight, and the link mechanism is rotated by the gravity of the counterweight to press the brush against the object to be cleaned. Further, in the above-described scraping device, the above-described brush system is divided into a plurality of pieces and arranged in the width direction of the object to be cleaned. Further, in the above-described ejecting apparatus, the above-described ejecting means presses each of the plurality of arranged brushes into contact with the object to be cleaned by the respective elastic thrusts. Moreover, with the above respective configurations, the same effects as those of the above-described embodiment of the electric dust collecting device can be obtained. Next, a fifth embodiment of the present invention will be described. The arrangement of the lower portion of the moving electrode of the fifth embodiment is the same as that of Fig. 1, and therefore the description thereof will be omitted, and will be described later with reference to Fig. 6 . Fig. 6 is a view showing in detail the right half of the brush means 40 shown in Fig. 1. The brush is moved from the downstream side (upper side in FIG. 2) toward the upstream side (the lower side in FIG. 2, the side to be wiped first) along the circumferential direction (the direction of progress) of the dust collecting plate 32 toward the order 2a, 3d, 2c three-stage long brush. The related structure of each of the brushes 2a, 2b, and 2c is the same as that of the first embodiment of Fig. 2, and the description thereof is omitted here. In Fig. 6, the brushes 2a and 2b are metal brushes which are formed by binding steel wire-like bristles, and the brush 2c is a flat plate (plate shape) made of metal or synthetic resin. In the toughness of each brush, the plate-shaped brush 2c is set to be the strongest (high rigidity). The brush 2a is set to be weak (low rigidity), and the brush 2b is set to have a strength therebetween. With such a setting, the dust adhering to the dust adhering to the surface of the dust collecting plate 3 2 can be a brush of the section (upstream side) of the first brushing (the upstream side) - 20- 201041654-like brush 2c performs rough scraping 'second' with the brush 2b of the brushing section to perform the middle finishing scraping 'to perform the final finishing scraping of the brush 2 a of the last brushing section (the downstream side section) The same scraping performance as the conventional rotating brush can be obtained. The relationship between the toughness strength of the aforementioned brush and the scraping is explained. The tough (high-rigidity) plate-shaped brush touches the dust collecting plate with strong pressure, but has less adhesion, and is suitable for scraping hard and large dust's low toughness (low rigidity). Brushes and the like are suitable for scraping fine dust because they are in contact with the dust collecting plate with a weak pressure but have good adhesion. Therefore, it is possible to use a brush having different toughness strengths in each stage to scrape off various dusts continuously and plural times, and to improve the scraping performance. Since the dust collecting plate 32 is flowed with dust and exhaust gas, other dust adheres immediately at intervals. Therefore, as shown in FIG. 6, the rough toughness is performed by disposing the toughness of the brush on the upstream side, and immediately the fine dust remaining after the rough scraping is scraped off by the weakly tough brush, thereby A high Q degree scraping performance is obtained. The aforementioned scraping performance can also be confirmed in Fig. 13. Fig. 1 is a graph showing the relationship between the angle α and the scraping amount, but it is also a graph showing the relationship between the number of scraping and the scraping amount. The height of the residual amount of residual dust (residual dust thickness) after the second and third scraping is reduced, and the residual amount after the second scraping is remarkably reduced, compared with the first scraping. In the present embodiment, by the three-stage brush 2a, 2b, 2c, the scraping of the dust collecting plate 32 is continuously performed three times. Figure 7 is a partial perspective view showing Embodiment 6 of the present invention. Here - 21 - 201041654 Example "The long strip brushes 2 a, 2 c which are not shown in Fig. 6 are divided into a plurality of pieces and arranged in the width (horizontal) direction of the dust collecting plate 3 2 so as to face the dust collecting plate The direction tilter is configured in a 2-segment configuration. The horizontally aligned brushes are configured to have a number of overlaps in their scraping range. Similarly to Fig. 6, each of the brushes 2a, 2c is fixed to the parallelogram link 4, and the parallelogram links 4 are fixed to the fixing members 7a, 7c, and the weights 6a, 6c are attached to the rear side 4d. Extend the lower end. Further, in the horizontally arranged brushes, the respective weights are connected by the connecting shafts 11a and 11b which are connected to the rear side 4d and the lower side 4b of the connecting fulcrum 4e, and the pressure is equal and individual for each of the segments. According to the sixth embodiment, since the brush 2a, 2c is divided into a plurality of pieces and arranged in the lateral direction to shorten each of the brushes, the deflection can be reduced, so that the dust can be removed from the upper side. The pressing force of 4a is transmitted to the entire range of the length of the brush, and the occurrence of scraping unevenness can be reduced. Further, since the brush can be pressed against the dust collecting plate with an individual pressure for each segment, the amount of scraping can be controlled for each segment, and the scraping performance with good efficiency can be set as a whole. Figure 8 is a partial perspective view showing Embodiment 7 of the present invention. In this embodiment, the long-length three-stage brushes 2a, 2b, and 2c shown in Fig. 6 are inclined in the direction in which the collecting plate 3 2 is moved, and are divided into five groups arranged in the width of the dust collecting plate 3 2 (horizontal )direction. The horizontally aligned brushes are configured such that their scraping ranges overlap with each other. Similarly to Fig. 7, each of the brushes 2a, 2b, 2c is fixed to the parallelogram link 4, but the difference is that the brushes of the three segments of each group are connected via the -22-201041654 link plate 9 (shown in broken lines) ) Fixed to this point of a parallelogram link. Each of the brushes is obliquely fixed to the connecting plate 9, the connecting plate 9 is fixed to the upper side 4a of the parallelogram link 4, and the rear side 4d of the parallelogram connecting rod 4 is fixed to one fixing member (fixed beam) 7. Further, the weight ό is a parallelogram link 4 which is individually provided in each group, and an individual pressing force (elastic thrust) can be applied to the brushes of each group. According to the seventh embodiment, by dividing the brush into a plurality of pieces and arranging 0 in the lateral direction, each of the brushes can be made shorter than that of the second embodiment, and the pressing force can be sufficiently ensured for the entire range of the lengths of the respective brushes. Further, since the plate surface of the dust collecting plate 3 2 is disposed along the flow direction of the exhaust gas of the boiler exhaust, one end in the width direction is upstream of the gas, and the other end is downstream, and is gathered along the width direction. The uneven thickness of the dust dust is generated. However, in the present embodiment, since the pressing force (elastic thrust) of each group of brushes is individually applied, the weight of the dust-collecting region of the dust collecting plate is set to be more heavy to increase the scraping force, so that the scraping force is increased. It is possible to equalize the residual amount of the powder Q dust after scraping. Further, in the foregoing embodiments, the parallelogram link is employed as the link mechanism, but the halo is not limited thereto, and the brush 2 may be provided at the front end of the side 4c using only the sides 4b and 4c' in Fig. 2, for example. Moreover, although a counterweight is used as the elastic pushing means, a poppet spring may be used instead of the counterweight as a spring pushing means, and 'in the foregoing embodiment, a stopper that restricts the movement of the weight is used as the limit brush. The means for restricting the movement may be configured, for example, to limit the range of movement of the parallelogram link and the brush. -23- 201041654 Each of the foregoing embodiments has been described with respect to an electric dust collector. However, the present invention can be applied to other bodies to be cleaned in addition to the dust collecting plates. Its structure (the symbol is the corresponding part of the display) is as follows. A scraping device for wiping a surface of a body to be cleaned by moving relative to the body to be cleaned (3 2 ), comprising: a brush for wiping the surface of the body to be cleaned Arranging the brushes (2a, 2b, 2c) disposed in the relatively moving direction; and the elastic pushing means (5, 6) for pressing the brush against the cleaned body, with the relative movement, by the aforementioned segments Brush to scrub the aforementioned cleaned body. Further, in the above-described scraping device, the plurality of brushes have different toughness strengths, and the segment where the object to be cleaned is initially brushed is set to have high toughness. Further, in the above-described scraping device 'in the above-mentioned brush, the first brush for wiping the object to be cleaned is a plate-shaped brush (2c), and the other segments are brushes composed of a plurality of hairs. Further, with the above respective configurations, the same effects as those of the above-described embodiment of the electric dust collecting device can be obtained. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a layout view of a lower portion of a movable electrode according to a first embodiment of the present invention. Fig. 2 is a detailed view of a brush means of a first embodiment. Fig. 3 is a perspective view of the brush means of the second embodiment. Fig. 4 is a perspective view of the brush means of the third embodiment. Fig. 5 is a perspective view of the brush means of the fourth embodiment. Fig. 6 is a detailed view of the brush means of the fifth embodiment. -24- 201041654 Fig. 7 is a perspective view of the brush means of the sixth embodiment. Figure 8 is a perspective view of the brush means of the seventh embodiment. Fig. 9 is a side sectional view showing a general structure of an electric dust collecting device. Fig. 10 is a view showing an arrow direction A-A of Fig. 10. Figure 11 is a perspective view showing the general structure of a moving electrode. Fig. 12 is a configuration diagram of a general lower portion of a moving electrode. Figure 13 is a graph showing the relationship between the angle of the brush and the amount of scraping. 〇【Main component symbol description】 1,2: Brush 2 a~2 c : Brush 3,4 : Parallelogram link 4a : Upper side 4b : Lower side 4c : Front side 〇 4d : Rear side 4 e : Connecting fulcrum 5, 6 : Bolting means (weight) 6a, 6c : Counterweight 7 : Fixed beam (fixing means) 7a, 7c: Fixing member 8 : Stopper (restriction means) lla, lld : Connecting shaft 15A, 15B, 15C: Moving Electrode-25- 201041654 3 0 : Endless chain 3 1 : Clearance 32, 32A, 32B, 32C: Dust collecting plate 40A, 40B, 40C: scraping means (brush means)
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