201238926 六、發明說明： 【發明所屬之技術領域】 本發明係關於用來熔融玻璃原料之玻璃熔融裝置、使 用此玻璃熔融裝置來製造玻璃纖維之玻璃纖維製造裝置、 變更以此玻璃熔融裝置所熔融之玻璃組碑的玻璃組成變更 方法。 【先前技術】 一般，用來製造玻璃纖維之玻璃纖維製造裝置具備有 :用來熔融玻璃原料之玻璃熔融爐：進行自玻璃熔融爐的 拉出口所拉出的熔融玻璃的溫度調整之前爐：及將導入到 前爐之熔融玻璃纖維化後，將玻璃纖維進行紡紗之纖維化 裝置。又，在此玻璃熔融爐，爲了抑制因玻璃原料的投入 所產生的氣泡、未完全熔融之玻璃原料利用熔融玻璃的表 層流動來從玻璃熔融爐流出，而設置有區隔熔融玻璃的液 面附近且僅使熔融玻璃從玻璃熔融爐的底部通過之機構。 作爲這些具体例，可舉出例如從熔融爐的底面至具有熔融 玻璃的拉出口之部分設有向上傾斜之機構，設有具階差的 上升構造之機構’又，如專利文獻1所記載，區劃成熔融 槽與作業槽’並在區隔壁設置頸部之機構等。 [專利文獻1 ]日本特開平1 1 - 3 4 3 1 2 4號公報 [專利文獻2 ]日本特開平〇 7 — 1 5 7 3 1 6號公報 [專利文獻3]日本特開平09-295829號公報 201238926 【發明內容】 [發明所欲解決之課題] 又，玻璃纖維，因組成的不同，具有無鹼玻璃纖維、 高強度玻璃纖維、耐酸性玻璃纖維等的各種種類。因此’ 以往以來，藉由針對每個玻璃的組成準備專用的玻璃纖維 製造裝置，來製造各式種類的玻璃纖維。但，由於當針對 每個玻璃的組成，準備專用的玻璃纖維製造裝置時，製造 成本會變高，故，期望以相同的玻璃纖維製造裝置替換玻 璃的組成，來製造各式種類的玻璃纖維。 但，組成不同的二種類熔融玻璃，比重大的熔融玻璃 會成爲下層而停滯於熔融爐的底面附近，又，比重小的熔 融玻璃會成爲上層而停置在熔融爐的上面附近’因此’分 離成上層與下層，無法完全地混合。 又，在使用以往技術之爐，如上述般比起玻璃熔融爐 的底面，拉出口設置於更高的位置，因此，依據上述理由 ，無法迅速地變更不同的玻璃組成。 一般，在進行組成變更之際，採用如專利文獻2所記 載，藉由加熱與強制的搅拌予以推出的方法，或如專利文 獻3所記載，使比重一致之方法等，但，就算採用這些方 法，也無法迅速且有效率地進行組成變更。 依據以上的理由，在以往的玻璃纖維製造裝置，存在 有爲了置換玻璃組成而需要花費長時間之問題。 本發明者們精心硏究的結果發現，在熔融爐內壁，設 置可撥去玻璃之材料且可因應需要而可動地進行熔融玻璃 -6- 201238926 的排出用之下部可動式區隔板，並且設置將將熔融爐本身 作成爲可動式而可朝複數個前爐進行供給之機構，藉由兩 者的組合，能夠大幅地縮短進行玻璃組成變更所需的時間 ，能夠大幅地提高效率。 因此，本發明之目的係在於提供在玻璃熔融爐設置下 部可動區隔板，針對所有的玻璃組成，能夠迅速地變更組 成之玻璃熔融裝置、玻璃纖維製造裝置及玻璃組成變更方 法。 [用以解決課題之手段] 本發明之玻璃熔融裝置，係具有：配置於供玻璃原料 投入的投入口的垂直方向下方，並具有底壁與側壁，又， 底壁及側壁的內面以氮化硼加以被覆，並在底壁形成有熔 融玻璃的拉出口之玻璃熔融爐；用來加熱玻璃熔融爐之加 熱手段；配置於設在投入口的垂直方向下方的玻璃熔融爐 的第一區域與形成有拉出口的玻璃熔融爐的第二區域之間 ，區隔玻璃熔融爐的底部之下部可動式區隔板；及配置於 第一區域的投入口與下部可動式區隔板之間，區隔玻璃熔 融爐的上部之上部固定式區隔板（以下稱爲「上部區隔板 」），下部可動式區隔板係可朝垂直方向上方移動。 若依據本發明之玻璃熔融裝置，從投入口所投入的玻 璃原料被投下至玻璃熔融爐的第一區域，利用以加熱手段 所進行的玻璃熔融爐的加熱予以熔融，此熔融玻璃通過玻 璃熔融爐的下方後，越過下部可動式區隔板而流出至玻璃 201238926 熔融爐的第二區域，再從拉出口拉出。又，在變更以玻璃 熔融爐予以熔融之玻璃的組成時，停止玻璃原料自投入口 的投入，使下部可動式區隔板朝垂直方向上方移動，由於 在玻璃熔融爐的底部，第一區域與第二區域連通，故，玻 璃熔融爐內的熔融玻璃，藉由下部可動式區隔板，不會滞 留於第一區域而朝第二區域移動，然後從拉出口拉出。並 且，利用以氮化硼被覆玻璃熔融爐的底壁及側壁的內面， 使得熔融玻璃從玻璃熔融爐的底壁及側壁被撥開，故，可 大幅削減殘留於玻璃熔融爐的底壁及側壁之熔融玻璃。藉 此，能夠從玻璃熔融爐迅速地拉出熔融玻璃，並可迅速地 變更玻璃的組成。 在此情況，玻璃熔融爐的底面係從第一區域朝第二區 域作成爲向下傾斜爲佳。如此藉由將玻璃熔融爐的底面作 成爲向下傾斜，可使熔融玻璃藉由自重，自第一區域朝第 二區域移動，因此，能夠迅速地自拉出口拉出熔融玻璃。 又，進一步具有外殼，其係覆蓋玻璃熔融爐，又在第 一區域的垂直方向上方形成有投入口，並且在拉出口的垂 直方向下方形成有用來排出自拉出口所拉出的熔融玻璃之 排出口爲佳。藉由具備這樣的外殼，使得不會阻礙玻璃原 料朝玻璃熔融爐的投入、熔融玻璃自玻璃熔融爐的拉出， 可將玻璃熔融爐放置於各種環境中。 在此情況，進一步具有用來供給惰性氣體之惰性氣體 供給手段，外殼形成有：用來將自惰性氣體供給手段所供 給的惰性氣體導入至外殼內之惰性氣體導入口；和用來將 -8- 201238926 導入至外殼內的惰性氣體排出之惰性氣體排出口爲佳。如 此藉由將惰性氣體導入至外殼內，讓玻璃熔融爐暴露於惰 性氣體環境中，能夠抑制玻璃熔融爐的底壁及側壁的氧化 產生，故，即使在將玻璃熔融爐加熱成高溫之情況，亦可 提升玻璃熔融爐的耐久性。 本發明之玻璃纖維製造裝置，其特徵爲，具有：上述 任一者的玻璃熔融裝置；配置於玻璃熔融爐的下方，導入 有自拉出口所拉出的熔融玻璃之前爐；及將導入至前爐的 熔融玻璃予以纖維化並加以紡紗之纖維化裝置。 若依據本發明之玻璃纖維製造裝置，由於具備有上述 的玻璃熔融裝置，故，在變更所製造的玻璃纖維的組成之 際，藉由使下部可動式區隔板朝垂直方向上方移動，可從 玻璃熔融爐迅速地拉出熔融玻璃，能夠迅速地變更所製造 的玻璃纖維的組成。 在此情況，前爐係呈複數個並列設置於水平方向上爲 佳。如此藉由將前爐呈複數個的方式並列設置，能夠針對 每個玻璃的組成，使用不同的前爐。藉此，能夠從玻璃熔 融爐獨立地進行來自於前爐之熔融玻璃的拉出，故，在從 前爐完全地拉出熔融玻璃之前，能夠在玻璃熔融爐使要變 更組成的玻璃原料開始熔融。再者，一般，從前爐拉出熔 融玻璃之時間係較從玻璃熔融爐拉出熔融玻璃的時間長， 因此，藉由這樣的結構，能夠更迅速地變更所製造的玻璃 纖維的組成。 又，進一步具有將自拉出口所拉出的熔融玻璃導入至 -9- 201238926 任一個前爐之切換手段爲佳。如此利用具有切換手段，能 夠容易變更所製造的玻璃纖維的組成。 本發明之玻璃組成變更方法係爲將在上述任一個玻璃 熔融裝置所熔融的玻璃的組成之玻璃組成變更方法，其特 徵爲，使下部可動式區隔板朝垂直方向上方移動，從玻璃 熔融爐之拉出口拉出熔融玻璃，然後，使下部可動式區隔 板朝垂直方向下方移動，區隔玻璃熔融爐的底部，從投入 口將要變更組成之玻璃原料投入至玻璃熔融爐。 若依據本發明之玻璃組成變更方法，藉由使下部可動 式區隔板朝垂直方向上方移動，由於在玻璃熔融爐的底部 ，-第一區域與第二區域連通，因此，通過上部區隔板的下 方之玻璃熔融爐內的熔融玻璃，藉由下部可動式區隔板， 不會滞留於第一區域而朝第二區域移動，從拉出口拉出。 然後，在將造變更組成的玻璃原料投入至玻璃熔融爐之際 ，使下部可動式區隔板朝垂直方向下方移動，將玻璃熔融 爐的底部區隔成第一區域與第二區域，藉此，能夠遮斷停 留於底部之不純物，並且可增長未熔融玻璃的熔融路徑， 延長熔融玻璃的熔融爐內滯留時間。如此，藉由使下部可 動式區隔板朝垂直方向移動，可從玻璃熔融爐迅速地拉出 熔融玻璃，並且可使要變更組成的玻璃原料在玻璃熔融爐 適當地熔融，能迅速地變更玻璃的組成。 又，在將自拉出口所拉出的熔融玻璃導入至配置於玻 璃熔融爐的下方之前爐的情況，當預先將配置於玻璃熔融 爐的下方且導入有自拉出口所拉出的熔融玻璃之前爐呈複 -10- 201238926 數個設置於水平方向，並且設置將自拉出口所拉出的熔融 玻璃導入至任一個前爐的切換手段，從玻璃熔融爐之拉出 口將熔融玻璃拉出時，藉由切換手段，將導入有自拉出口 所拉出的熔融玻璃之前爐切換成其他的前爐，從投入口， 將要變更組成的玻璃原料投入至玻璃熔融爐爲佳。如此， 當預先並列設置複數個前爐，從玻璃熔融爐之拉出口拉出 熔融玻璃時，藉由切換手段，將導入熔融玻璃之前爐切換 成其他的前爐，因此，將熔融玻璃自玻璃熔融爐拉出時， 能夠立即將要變更組成的玻璃原料投入至玻璃熔融爐加以 熔融。藉此，能夠迅速且容易地變更玻璃的組成。 [發明效果] 若依據本發明，在玻璃熔融爐設置下部可動式區隔板 ，在各種玻璃組成，能夠迅速地變更組成。 【實施方式】 以下，參照圖面，詳細說明關於本發明之玻璃熔融裝 置、玻璃纖維製造裝置及玻璃組成變更方法的理想實施形 態。再者，在所有的圖中，針對相同或相當部分賦予相同 符號，並省略重複的說明。 圖1係實施形態之玻璃纖維製造裝置的示意圖，圖2 係圖1所示的玻璃熔融爐的斷面斜視圖。再者，圖2中所 示的箭號係顯示熔融玻璃流動的大致路徑。如圖1及圖2 所示，玻璃纖維製造裝置1具備有：可移動地載置於底板 -11 - 201238926 2之1台的玻璃熔融裝置10;及配置於底板2的下方的複 數台纖維化設備30»再者，在本實施形態，在底板2的 下方，配置有纖維化設備30a及纖維化設備30b的2台纖 維化設備3 0。 玻璃熔融裝置10具備有：用來熔融玻璃原料粉末、 玻璃塊等的玻璃原料之玻璃熔融爐11:及用來覆蓋玻璃 熔融爐π之外殼18。再者，玻璃原料粉末爲黏土、石灰 石、白雲石、硬硼酸鈣石、矽砂、氧化鋁、碳酸鈣、碳酸 鈉等的粉狀混合物，玻璃塊爲將熔融玻璃原料粉末所成的 熔融玻璃暫時冷卻固化者。 玻瑀熔融爐1 1係藉由略矩形的底壁1 2、和立設於底 壁1 2的側壁1 3，形成爲上方開口之箱狀。底壁12及側 壁1 3係以藉由通電可進行發熱的電熱構件所形成，例如 以鉬所構成。又，底壁1 2及側壁1 3的內面係以對熔融玻 璃具有撥液性（撥開熔融玻璃）之氮化硼所被覆著。又， 在相對向的側壁13，形成有一對電極部13a，在各電極部 13a，連接著用來供給電流之電源14。因此，自電源14, 經由一對電極部1 3a對玻璃熔融爐1 1供給電流，讓玻璃 熔融爐11抵抗發熱，藉此，可熔融被投入至玻璃熔融爐 1 1之玻璃原料。 這樣的玻璃熔融爐11係形成有：供玻璃原料投入的 第一區域A;和拉出熔融玻璃之第二區域B。又，在第二 區域B的底壁丨2’形成有用來從玻璃熔融爐11拉出熔融 玻璃之拉出口 15，在第一區域A與第二區域B之間配置 -12- 201238926 有下部可動式區隔板16’而在第一區域A內的投入口 19 與下部可動式區隔板16之間配置有上部區隔板17°再者 ，拉出口 15的內面也被氮化硼所被覆著。 下部可動式區隔板16係爲用來區隔玻璃熔融爐11的 底部，讓熔融玻璃僅從玻璃熔融爐11的上部通過之區隔 板。下部可動式區隔板16係形成爲抵接於相對向的一對 側壁13與底壁12，而區隔成第一區域A與第二區域B之 平板狀，在其上部，形成有將第一區域A與第二區域B 連通之複數個連通孔16a。因此，在第一區域A被熔融的 熔融玻璃係藉由通過形成於下部可動式區隔板16連通孔 .16a，可朝第二區域B移動。 此下部可動式區隔板16可朝垂直方向上方移動地安 裝於玻璃熔融爐11。具體而言，下部可動式區隔板16係 可自由滑動地嵌入於形成在玻璃熔融爐11的側壁13之垂 直方向的溝13b，在下部可動式區隔板16的上端，固定 有穿過外殼18並朝垂直方向上方延伸的操作棒16b。因 此，當在外殼18的外側拉下操作棒16b時，連結於操作 棒1 6b之下部可動式區隔板1 6會沿著溝1 3 b朝垂直方向 下方移動，而區隔（封鎖）玻璃熔融爐11的底部，能僅 使來自於連通孔16a之熔融玻璃自第一區域A移動至第二 區域B。另外，當在外殼18的外側拉起操作棒16b時， 連結於操作棒16b之下部可動式區隔板16會沿著溝13b 朝垂直方向上方移動，而打開玻璃熔融爐Μ的底部，可 讓熔融玻璃在玻璃熔融爐1 1的底部，自第一區域Α移動 -13- 201238926 到第二區域B。再者，操作棒16B的拉起及拉下，可藉由 手動來進行，亦可藉由致動器等的驅動機構來進行。 上部區隔板1 7係爲區隔熔融玻璃的液面附近之玻璃 熔融爐11的上部，使熔融玻璃僅從玻璃熔融爐11的底部 通過之區隔板。上部區隔板17係形成爲抵接於相對向的 —對側壁13與底壁12，而區隔第一區域A內的投入口 19垂直下方與下部可動式區隔板16之間的位置之平板狀 ，在其下部，形成有用來連通被上部區隔板17所區隔的 2個區域之缺口 17a。因此，在第一區域A內的投入口 19 垂直下方被熔融之熔融玻璃，藉由通過形成於上部區隔板 17之缺口 1.7a，能夠朝被上部區隔板17所區隔的第一區 域A的下部可動式區隔板1 6側移動。 此上部區隔板1 7係配置於下部可動式區隔板1 6的第 一區域A側並固定在玻璃熔融爐11。因此，在第一區域 A內的投入口 19垂直下方被熔融之熔融玻璃，首先，通 過形成於上部區隔板17的下部之缺口 17a，然後，再通 過形成於下部可動式區隔板16之連通孔16a後，移動至 第二區域B再從拉出口 15拉出。 又，構成玻璃熔融爐11之底壁12的底面12a係自第 —區域A朝第二區域B形成爲向下傾斜。因此，在使下 部可動式區隔板16朝垂直方向上方移動之狀態下，不會 使熔融玻璃殘留於第一區域A，而能從形成於第二區域B 的底壁12之拉出口 15拉出。 外殼18，藉由頂壁18A、側壁18b、及底壁18c形成 •14- 201238926 爲箱狀。 在頂壁18a，於玻璃熔融爐11的第一區域A的垂直 方向上方，形成有用來將玻璃原料投入至玻璃熔融爐11 之投入口 19。又，在此投入口 19，連結有供給要投入至 玻璃熔融爐11的玻璃原料之螺旋加料機20。 在側壁1 8b，形成有用來對外殻1 8內導入惰性氣體 之惰性氣體導入口 2 1。又，在此惰性氣體導入口 2 1，連 結著用來供給要導入至外殼1 8內的惰性氣體之惰性氣體 供給裝置22。再者，從惰性氣體供給裝置22所供給的氣 體，若爲非氧化性氣體則未特別限定，例如，能夠使用氬 氣、氮氣等，其中，在能以低成本穩定地供給的觀點上， 氮氣爲佳。 在底壁18c，於玻璃熔融爐11的拉出口 15的垂直方 向下方，形成有排出口 23,其係用來排出自拉出口 15所 拉出的熔融玻璃，並且排出被導入到外殼1 8內的惰性氣 體。 且，在底壁18c，安裝有用來在底板2上使外殼18 移動之移動機構24。移動機構24，若爲可使外殼18移動 ，則可爲任意機構，例如，亦可爲車輪。 再者，在外殼18內，插入有用來將玻璃熔融爐11隔 熱之耐火磚、耐熱板等的隔熱材。 又，在底板2’形成有用來將自玻璃熔融爐11的拉 出口 15所拉出的熔融玻璃導入至各纖維化設備30之底板 孔3。此底板孔3係與各纖維化設備3 0相對應，在纖維 -15- 201238926 化設備30a的垂直方向上方形成底板孔3a，在纖維化設 備3 0b的垂直方向上方形成底板孔3b。 纖維化設備3 0係爲將自玻璃熔融爐1 1的拉出口 15 所拉出的熔融玻璃予以纖維化之設備，纖維化設備3 0a與 纖維化設備3 Ob係在底板2的下方，並列設置於水平方向 。再者，纖維化設備30a與纖維化設備30b，由於其相互 結構相同，除了特別分開進行說明的情況，在此係以纖維 化設備30進行說明。此纖維化設備30具備有：導入有自 拉出口 15所拉出的熔融玻璃之前爐31;自前爐31內的 熔融玻璃形成有多數條細絲之襯套32 ;自襯套32拉出細 絲並以高速予以捲取之旋轉滾筒33 ;對自襯套32所拉出 的各細絲塗佈集束劑之器具3 7 ;及用來將各細絲集束之 集束滾子34。 前爐31係爲導入自拉出口 15所拉出的熔融玻璃，並 且調節熔融玻璃的溫度，調整成容易將熔融玻璃進行纖維 化的黏度之儲存槽。再者，纖維化設備3 0a的前爐31a與 纖維化設備3 Ob的前爐3 1 b係相互地並列設置於水平方向 。又，前爐31係配置於底板孔3A的垂直方向下方，形 成有用來導入自拉出口 15所拉出的熔融玻璃之上部開口 35。此前爐31具備有用來調節熔融玻璃的溫度之加熱手 段。此加熱手段，例如亦可爲垂吊於前爐31的頂面之電 加熱器3 6，又，若爲氣體噴燈等的能夠調節熔融玻璃的 溫度之加熱手段，則可使用任一種手段來代替電加熱器 36 · -16- 201238926 襯套32係設置在前爐31的底部，形成有用來進行紡 紗的多數個（例如100〜4000左右）的噴嘴（未圖示）。 此襯套32具備有用來調節熔融玻璃的溫度之加熱手段（ 未圖示）。此加熱手段係與玻璃熔融爐1 1同樣地藉由通 電加以抵抗發熱者。因此，襯套3 2係以利用通電來發熱 的電熱構件所形成，例如由白金、白金合金等所構成。 其次’參照圖面，說明關於變更藉由本實施形態之玻 璃纖維製造裝置1所製造的玻璃纖維的玻璃組成之方法。 首先’參照圖1及圖2，說明關於使用玻璃纖維製造 裝置1之玻璃纖維的製造方法。 如圖1及圖2所示，在玻璃纖維製造時，藉由移動機 構24使玻璃熔融裝置1〇移動，將玻璃熔融爐n的拉出 口 15配置於形成在底板2之底板孔3A的垂直方向上方 。又，使下部可動式區隔板16朝垂直方向下方移動，在 第一區域A與第二區域B之間，區隔玻璃熔融爐11的底 部。又，反復數次進行藉由真空泵將外殼18內作成爲真 空狀態或至少作成爲減壓狀態，將存在於外殼1 8內的氧 氣排除後，將從惰性氣體供給裝置22所供給的惰性氣體 自惰性氣體導入口 21導入至外殻18內之操作，直到外殻 18內的氧濃度至少成爲1%以下爲止，來將外殼18內作 成爲惰性氣體環境。再者，在導入惰性氣體前，充滿於外 殼18內之氣體、導入至外殼18內之惰性氣體等自排出口 2 3被排出。 其次，在外殼1 8內成爲惰性氣體環境之狀態下，從 -17- 201238926 電源14供給電流來加熱玻璃熔融爐11，再從螺旋 20供給玻璃原料粉末、玻璃塊等的玻璃原料。於 玻璃原料從投入口 19朝玻璃熔融爐11的第一區i 的投入口 19垂直下方投入，藉由已加熱的玻璃熔 加以熔融。再者，此時，纖維化設備30a的前爐3 套32a亦預先加熱。 於是，在第一區域A內的投入口 19垂直下方 之熔融玻璃，通過形成於上部區隔板17之缺口 1 ‘ 成於下部可動式區隔板16之連通孔16a，從第一 移動至第二區域B，自形成於第二區域B的底壁 出口 15朝垂直方向下方拉出。自此拉出口 15所拉 融玻璃，通過形成於外殻18之排出口 23、形成於 之底板孔3a及形成於纖維化設備30a的前爐31a 開口 35a，導入至前爐31a內，且，從設置於前爐 底部的襯套32a的多數個噴嘴，作爲玻璃細絲加以 又，以器具37a，對自襯套32a的多數個噴嘴所拉 璃細絲塗佈集束劑，再一邊以集束滾子34a將多數 細絲集束，一邊以高速旋轉的旋轉滾筒33a捲繞， 製造集束有細長玻璃細絲之玻璃纖維》 其次，參照圖3〜圖7，說明關於使用玻璃纖 裝置1所製造的玻璃纖維的組成之方法。圖3係顯 部可動式區隔板16上升後的狀態之圖，圖4係圖 的玻璃熔融爐的斷面斜視圖。圖5係顯示使玻璃熔 動後的狀態之圖。圖6係顯示使下部可動式區隔相 :加料機 是，此 咸A內 融爐1 1 1 a及襯 被熔融 7a及形 區域 A 12之拉 出的熔 •底板2 之上部 3 1 a的 拉出。 出的玻 個玻璃 藉此， 維製造 示使下 3所示 融爐移 ί 16下 -18- 201238926 降後的狀態之圖。圖7係顯示製造其他組成的玻璃纖維的 狀態之圖。 如圖3及圖4所示，在變更所製造的玻璃纖維的組成 之際，首先，停止從螺旋加料機20所進行的玻璃原料的 供給，使下部可動式區隔板16朝上方移動。於是，玻璃 熔融爐1 1的底部自下部可動式區隔板1 6被打開，在玻璃 熔融爐11的底部，使得第一區域A與第二區域B相連通 。因此，第一區域A內的熔融玻璃可藉由下部可動式區 隔板16，不會滯留於第一區域A而能沿著底面12A的傾 斜，朝第二區域B移動，再從拉出口 15朝前爐31a拉出 〇 當玻璃熔融爐Π內的所有熔融玻璃被拉出時，則如 圖5所示，藉由移動機構24使玻璃熔融裝置10移動，讓 玻璃熔融爐11的拉出口 15配置到形成於底板2之底板孔 3b的垂直方向上方。 此時，在纖維化設備30a，由於在前爐31a還儲存著 熔融玻璃，故，可自玻璃熔融裝置10獨立地使旋轉滾筒 33a高速旋轉，直到儲存於前爐31a之所有的熔融玻璃消 失爲止持續製造玻璃纖維。再者，在此情況，亦可終止玻 璃纖維的製造，讓熔融玻璃從襯套32a流出，直到儲存於 前爐31a之所有的熔融玻璃消失爲止。 當拉出口 1 5配置於底板孔3 b的垂直方向上方時，如 圖6所示，使下部可動式區隔板16朝垂直方向下方移動 ，在第一區域A與第二區域B之間，區隔玻璃熔融爐1 1 -19- 201238926 的底部。其次’以真空泵將外殻18內作成爲真空狀態或 至少作成爲減壓狀態’將存在於外殻1 8內的氧氣排除後 ，從惰性氣體供給裝置22供給惰性氣體，反復數次進行 這樣的操作，直到外殼1 8內的氧濃度至少成爲1 %以下爲 止’來將外殼18內作成爲惰性氣體環境。再者，將下部 可動式區隔板16朝垂直方向下方移動之時序，若爲拉出 玻璃熔融爐1 1內的熔融玻璃的時間，則無論哪一時序均 可，例如亦可爲使玻璃熔融裝置10移動前之時序。 又，在外殼18內成爲惰性氣體環境之狀態下，從電 源14供給電流來加熱玻璃熔融爐11，從螺旋加料機20 供給其他組成的玻璃原料。於是，此其他組成的玻璃原料 從投入口 19投入至玻璃熔融爐11的第一區域A，藉由已 被加熱之玻璃熔融爐1 1予以熔融。再者，此時，纖維化 設備30b的前爐31b及襯套3 2b亦預先加熱。 在第一區域A被熔融的其他組成的熔融玻璃係如圖7 及圖2所示，通過形成於上部區隔板17之缺口 17a及形 成於下部可動式區隔板16之連通孔16a，從第一區域A 移動至第二區域B，自形成於第二區域B的底壁12之拉 出口 15朝垂直方向下方拉出。自此拉出口 15所拉出的熔 融玻璃，通過形成於外殼18之排出口 23、形成於底板2 之底板孔3b及形成於纖維化設備30b的前爐31b之上部 開口 35b導入至前爐31b內，且，從設置於前爐31b的底 部之襯套32b的多數個噴嘴作爲玻璃細絲被導出。又，藉 由器具37b，對從襯套32b的多數個噴嘴所導出的玻璃細 -20- 201238926 絲塗佈集束劑，一邊以集束滾子34b將多數個玻璃細絲集 束，一邊以高速旋轉的旋轉滾筒33b予以捲繞，藉此，製 造集束有細長細絲的其他組成的玻璃纖維。 如以上所說明，若依據本實施形態，在變更以玻璃熔 融爐Π所熔融的玻璃的組成之際，停止玻璃原料自投入 口 19的投入，使下部可動式區隔板16朝垂直方向上方移 動，由於在玻璃熔融爐11的底部，第一區域A與第二區 域B相連通，故，通過上部區隔板17的缺口 17a之玻璃 熔融爐11內的熔融玻璃，藉由下部可動式區隔板16,不 會滯留於第一區域A而可朝第二區域B移動，再從拉出 口 15被拉出。並且，.藉由以氮化硼被覆玻璃熔融爐丨丨的 底壁12及側壁13的內面，使得熔融玻璃自玻璃熔融爐 1 1的底壁12及側壁13被撥開，故，能夠大幅地削減殘 留於玻璃熔融爐Π的底壁1 2及側壁1 3之熔融玻璃。藉 此，能夠自玻璃熔融爐1 1迅速地拉出熔融玻璃，能迅速 地變更玻璃的組成。 又，藉由將玻璃熔融爐1 1的底面1 2 a作成爲向下傾 斜，使得熔融玻璃藉由自重，從第一區域A朝第二區域B 移動，故，能夠更迅速地自拉出口 1 5拉出熔融玻璃。 又’藉由具備覆蓋玻璃熔融爐11之外殼18，不會阻 礙玻璃原料朝玻璃熔融爐11的投入、熔融玻璃自玻璃熔 融爐11的拉出等’能夠將玻璃熔融爐11放置於各種環境 中。又’藉由對外殼1 8內導入惰性氣體，讓玻璃熔融爐 1 1暴露於惰性氣體的環境中，可抑制玻璃熔融爐11的底 -21 - 201238926 壁12及側壁13的氧化，因此，即使在將玻璃熔融爐11 加熱至高溫之情況，也能夠提升玻璃熔融爐11的耐久性 〇 且，藉由並列設置複數個纖維化設備3 0，能夠自玻 璃熔融爐11獨立地進行熔融玻璃從前爐31的拉出，因此 ，在自前爐31完全地拉出溶融玻璃之前，能夠在玻璃熔 融爐11開始熔融要變更組成的玻璃原料。再者，一般， 自前爐3 1拉出熔融玻璃之時間係較自玻璃熔融爐1 1拉出 熔融玻璃之時間更長，故，藉由這樣的結構，能夠更迅速 地變更所製造的玻璃纖維的組成。 又，利用以移動機構24使外殼1 8移動，擇一地選擇 要導入的前爐3 1，能夠容易地變更所製造的玻璃纖維的 組成。 再者，本發明不限於上述實施形態，可進行各種變更 〇 例如在上述實施形態，以藉由外殼1 8覆蓋玻璃熔融 爐1 1的形態爲例進行了說明，但，在不需要將玻璃熔融 爐1 1暴露於惰性氣體環境之情況，則不需要一定要以外 殻1 8覆蓋玻璃熔融爐1 1。在此情況，移動機構24係作 成爲直接或間接地安裝於玻璃熔融爐11，來使玻璃熔融 爐1 1移動。 又，在上述實施形態，說明了下部可動式區隔板16 係藉由連通孔16a讓第一區域A的熔融玻璃移動至第二區 域B，但，若可區隔玻璃熔融爐1 1的底部者，則可爲任 -22- 201238926 意形狀。例如’亦可如圖8所示的下部可動式區隔板1 6 ’般，作成爲較熔融玻璃的液面高度更低的平板狀，來區 隔玻璃熔融爐11的底部，並且從下部可動式區隔板16’ 的上方，使第一區域A的熔融玻璃移動至第二區域B。 又，在上述實施形態，說明了作爲加熱手段，採用以 電源14將玻璃熔融爐11通電而讓玻璃熔融爐η抵抗發 熱者，但，若爲可將玻璃熔融爐Π加熱並使玻璃原料熔 融，則採用任意手段皆可。例如，亦可採用將複數支電極 插入至玻璃熔融爐11內，將玻璃原料及熔融玻璃予以直 接加熱之加速型加熱手段。 又，在上述實施形態，.說明了採用移動機構24作爲 切換手段，但，若可將自拉出口 15所拉出的熔融玻璃導 入至任一個前爐3 1，則可採用任意手段。例如，亦可預 先固定玻璃熔融裝置10，並設置將自拉出口 15所拉出的 熔融玻璃導入至任一個前爐31之流路’藉由切換此流路 之配置，來將自拉出口 15所拉出的熔融玻璃導入至期望 的前爐3 1。 又，在上述實施形態，說明了並列設置複數個纖維化 設備30之形態，但，若可自前爐迅速地拉出熔融玻璃’ 則亦可僅設置1台纖維化設備3 0。 又，在上述實施形態，說明了將自拉出口 1 5所拉出 的熔融玻璃直接導入至前爐31的形態’但，亦可如圖9 所示的玻璃纖維製造裝置40般’將自拉出口 15所拉出的 熔融玻璃，經由熔融玻璃儲存槽4 1及減壓脫泡爐4 2等的 -23- 201238926 中間槽，導入至前爐3 1。再者，減壓脫泡爐42係爲以外 殻44氣密地被覆導入有熔融玻璃之爐43，並且藉由減壓 泵45將此外殼44內予以減壓，藉此促進已導入到爐43 內之熔融玻璃的脫泡者。 [實施例] 其次，說明關於本發明的實施例。再者，本發明不限 於實施例。 在實施例，製作：與上述的實施形態的玻璃熔融裝置 10同樣地，以氮化硼被覆構成玻璃熔融爐11之底壁12 及側壁13的內面，並使下部可動式區隔板16可朝垂直方 向上方移動之玻璃熔融裝置10。 又，當使熔融玻璃充滿於玻璃熔融爐11內後，拉起 下部可動式區隔板16，從拉出口 15拉出熔融玻璃，觀察 在玻璃熔融爐1 1內殘留有多少的熔融玻璃。 該觀察結果得知，在側壁1 3及第一區域A的底壁1 2 ，幾乎未殘留有熔融玻璃。另外，在第二區域B的底壁 1 2，僅殘留稍許熔融玻璃，其殘留程度爲即使直接頭入要 變更的玻璃組成的玻璃原料也不會產生阻礙之程度。 此結果得知，藉由以氮化硼被覆底壁1 2及側壁1 3的 內面，並拉起下部可動式區隔板16，使得即使不採用將 玻璃熔融爐U翻轉等的手段，也能夠變更玻璃組成，因 此，能夠迅速地變更玻璃的組成。 -24- 201238926 [產業上的利用可能性] 本發明係可利用作爲用來熔融玻璃原料之玻璃熔融裝 置、使用此玻璃熔融裝置來製造玻璃纖維的玻璃纖維製造 裝置、及變更在此玻璃熔融裝置所熔融的玻璃組成之玻璃 組成變更方法。 【圖式簡單說明】 圖1係實施形態之玻璃纖維製造裝置的示意圖。 圖2係圖1所示的玻璃熔融爐的斷面斜視圖。 圖3係顯示使下部可動式區隔板上升的狀態之圖。 圖4係圖3所示的玻璃熔融.爐的斷面斜視圖。 圖5係顯示使玻璃熔融爐移動的狀態之圖。 圖6係顯示使下部可動式區隔板下降的狀態之圖》 圖7係顯示製造其他組成的玻璃纖維的狀態之圖。 圖8係顯示下部可動式區隔板的形狀例之圖。 圖9係安裝有減壓脫泡爐之玻璃纖維製造裝置的示意 圖。 【主要元件符號說明】 1 :玻璃纖維製造裝置 2 :底板 3 ( 3 a，3 b ):底板孔 1〇 :玻璃熔融裝置 Π :玻璃熔融爐 -25- 201238926 12 :底壁 1 2 a :底面 1 3 :側壁 1 3 a :電極部 13b :溝 1 4 :電源 15 :拉出口 16:下部可動式區隔板 1 6 a :連通孔 16b :操作棒 1 7 :上部區隔板（上部固定式區隔板） 17a :缺口 18 :外殼 1 8 a :頂壁 1 8 b :側壁 1 8c :底壁 1 9 :投入口 2 0 :螺旋加料機 2 1 :惰性氣體導入口 22 :惰性氣體供給裝置（惰性氣體供給手段） 2 3 :排出口（惰性氣體排出口） 24 :移動機構 3 0 ( 3 0a，30b):纖維化設備 31 ( 31a，31b):前爐 -26 - 201238926 32 (32a ， 32b ) :襯 33 (33a > 33b ) :旋 34 (34a ， 34b ) :集 3 5 (35a > 35b ) :上 36 (36a - 36b ) :電 3 7 (37a ， 37b ) :器 40 :玻璃纖維 製造裝 4 1 =熔融玻璃 儲存槽 42 :減壓脫泡 爐 43 :爐 44 :外殼 45 :減壓栗 A : 第一區域 B : 第二區域 套（纖維化裝置） 轉滾筒（纖維化裝置） 束滾子（纖維化裝置） 部開口 加熱器 具 置 -27-201238926 VI. TECHNOLOGICAL FIELD OF THE INVENTION The present invention relates to a glass melting apparatus for melting a glass raw material, a glass fiber manufacturing apparatus for manufacturing glass fiber using the glass melting apparatus, and a melting of the glass melting apparatus. The method of changing the glass composition of the glass group monument. [Prior Art] Generally, a glass fiber manufacturing apparatus for producing glass fibers includes: a glass melting furnace for melting a glass raw material: a temperature adjustment of a molten glass drawn from a drawing outlet of a glass melting furnace: A fiberizing device that spun the glass fiber after the molten glass introduced into the front furnace is fiberized. In addition, in the glass melting furnace, in order to suppress the bubbles generated by the input of the glass raw material and the glass raw material which is not completely melted, the surface layer of the molten glass flows out of the glass melting furnace, and the liquid surface of the molten glass is provided. And only the mechanism through which the molten glass passes through the bottom of the glass melting furnace. As a specific example, for example, a mechanism in which an upwardly inclined mechanism is provided from a bottom surface of the melting furnace to a portion having a drawing outlet of the molten glass, and a mechanism having a stepped rising structure is provided, and as described in Patent Document 1, The mechanism is divided into a melting tank and a working tank, and a mechanism for providing a neck at the partition wall. [Patent Document 1] Japanese Laid-Open Patent Publication No. JP-A No. Hei 09-295829 STATEMENT OF THE INVENTION [Problems to be Solved by the Invention] The glass fiber has various types such as alkali-free glass fiber, high-strength glass fiber, and acid-resistant glass fiber depending on the composition. Therefore, conventionally, various types of glass fibers have been produced by preparing a dedicated glass fiber manufacturing apparatus for the composition of each glass. However, when a dedicated glass fiber manufacturing apparatus is prepared for each glass composition, the manufacturing cost is increased. Therefore, it is desirable to replace the glass composition with the same glass fiber manufacturing apparatus to produce various types of glass fibers. However, in the case of two types of molten glass having different compositions, the molten glass having a larger specific gravity will become the lower layer and be stagnated near the bottom surface of the melting furnace, and the molten glass having a small specific gravity will become the upper layer and be parked near the upper surface of the melting furnace. In the upper and lower layers, it cannot be completely mixed. Further, in the furnace using the prior art, since the pull-out port is provided at a higher position than the bottom surface of the glass-melting furnace as described above, it is not possible to quickly change the different glass compositions for the above reasons. In general, when the composition is changed, a method of pushing out by heating and forced stirring as described in Patent Document 2, or a method of making the specific gravity uniform as described in Patent Document 3, or the like, is adopted. It is also impossible to make composition changes quickly and efficiently. For the above reasons, in the conventional glass fiber manufacturing apparatus, there is a problem that it takes a long time to replace the glass composition. As a result of intensive research, the present inventors have found that a material for which the glass can be removed is provided on the inner wall of the melting furnace, and the lower movable portion partition plate for the discharge of the molten glass-6-201238926 can be moved as needed. By providing a mechanism in which the melting furnace itself is movable and can be supplied to a plurality of front furnaces, the combination of the two can greatly shorten the time required to change the glass composition, and the efficiency can be greatly improved. Accordingly, an object of the present invention is to provide a glass melting apparatus, a glass fiber manufacturing apparatus, and a glass composition changing method which are capable of rapidly changing the composition of the lower movable partition partition in a glass melting furnace. [Means for Solving the Problem] The glass-melting device of the present invention has a bottom wall and a side wall disposed in the vertical direction of the input port into which the glass raw material is supplied, and the inner surface of the bottom wall and the side wall is nitrogen. a glass melting furnace coated with boron and having a pull-out port of molten glass on the bottom wall; a heating means for heating the glass melting furnace; and a first region of the glass melting furnace disposed below the vertical direction of the inlet port and Between the second regions of the glass melting furnace having the outlets formed, the movable partitions at the bottom of the bottom portion of the glass melting furnace; and the partitions disposed between the first region and the lower movable partitions The upper partition plate of the upper part of the glass melting furnace is fixed (hereinafter referred to as "upper partition"), and the lower movable partition is movable upward in the vertical direction. According to the glass melting apparatus of the present invention, the glass raw material charged from the inlet is dropped to the first region of the glass melting furnace, and is melted by heating by a glass melting furnace by heating means, and the molten glass is passed through the glass melting furnace. After the lower part, it flows over the lower movable partition and flows out to the second area of the glass 201238926 melting furnace, and then pulls out from the pulling outlet. When the composition of the glass to be melted in the glass melting furnace is changed, the input of the glass raw material from the inlet is stopped, and the lower movable partition plate is moved upward in the vertical direction. Since the first region is at the bottom of the glass melting furnace, Since the second region is in communication, the molten glass in the glass melting furnace is moved to the second region without being retained in the first region by the lower movable partition plate, and then pulled out from the pull-out port. Further, by coating the inner surfaces of the bottom wall and the side walls of the glass melting furnace with boron nitride, the molten glass is removed from the bottom wall and the side walls of the glass melting furnace, so that the bottom wall of the glass melting furnace can be greatly reduced and Molten glass on the side wall. Thereby, the molten glass can be quickly pulled out from the glass melting furnace, and the composition of the glass can be quickly changed. In this case, it is preferable that the bottom surface of the glass melting furnace is inclined downward from the first region toward the second region. By thus inclining the bottom surface of the glass melting furnace downward, the molten glass can be moved from the first region to the second region by its own weight, so that the molten glass can be quickly pulled out from the outlet. Further, it further has an outer casing covering the glass melting furnace, and an input port is formed above the vertical direction of the first region, and a row of molten glass for discharging the self-drawn outlet is formed below the vertical direction of the pull-out port. Exports are better. By providing such an outer casing, the glass melting furnace can be placed in various environments without hindering the input of the glass raw material into the glass melting furnace and the drawing of the molten glass from the glass melting furnace. In this case, further, there is provided an inert gas supply means for supplying an inert gas, and the outer casing is formed with an inert gas introduction port for introducing an inert gas supplied from the inert gas supply means into the outer casing; and - 201238926 The inert gas discharge port for the inert gas discharged into the outer casing is preferred. By introducing an inert gas into the outer casing and exposing the glass melting furnace to an inert gas atmosphere, oxidation of the bottom wall and the side wall of the glass melting furnace can be suppressed, so that even when the glass melting furnace is heated to a high temperature, It can also improve the durability of the glass melting furnace. A glass fiber manufacturing apparatus according to the present invention, comprising: the glass melting apparatus according to any one of the above, disposed in a lower portion of the glass melting furnace, and introduced into the furnace before the molten glass pulled out from the outlet; and before being introduced A fiberizing device in which molten glass of a furnace is fiberized and spun. According to the glass fiber manufacturing apparatus of the present invention, since the glass melting apparatus described above is provided, when the composition of the produced glass fiber is changed, the lower movable partition plate is moved upward in the vertical direction. The glass melting furnace rapidly pulls out the molten glass, and can quickly change the composition of the produced glass fiber. In this case, it is preferable that the front furnace system is arranged in parallel in a plurality of directions. By juxtaposing the front furnace in a plurality of ways, it is possible to use different forehearths for the composition of each glass. Thereby, the molten glass from the front furnace can be independently pulled out from the glass melting furnace. Therefore, the glass raw material to be changed in the glass melting furnace can be melted before the molten glass is completely pulled out from the front furnace. Further, in general, the time for pulling out the molten glass from the front furnace is longer than the time for pulling out the molten glass from the glass melting furnace. Therefore, with such a configuration, the composition of the produced glass fiber can be changed more rapidly. Further, it is preferable to further have a means for switching the molten glass drawn from the outlet to the front furnace of -9-201238926. By using the switching means as described above, the composition of the produced glass fiber can be easily changed. The method for changing the glass composition of the present invention is a method for changing the glass composition of the composition of the glass melted by any of the above-described glass melting devices, characterized in that the lower movable partition plate is moved upward in the vertical direction from the glass melting furnace. The pull-out of the molten glass is pulled out, and then the lower movable partition plate is moved downward in the vertical direction to partition the bottom of the glass melting furnace, and the glass raw material to be changed from the input port is put into the glass melting furnace. According to the glass composition changing method of the present invention, by moving the lower movable partition plate in the vertical direction, since the first region communicates with the second region at the bottom of the glass melting furnace, the upper partition plate is passed through The molten glass in the lower glass melting furnace is moved to the second region without being retained in the first region by the lower movable partition plate, and is pulled out from the pull outlet. Then, when the glass raw material having the modified composition is put into the glass melting furnace, the lower movable partition plate is moved downward in the vertical direction, and the bottom portion of the glass melting furnace is partitioned into the first region and the second region. It can block the impurities remaining at the bottom, and can increase the melting path of the unmelted glass, and prolong the residence time in the melting furnace of the molten glass. By moving the lower movable partition plate in the vertical direction, the molten glass can be quickly pulled out from the glass melting furnace, and the glass raw material whose composition is changed can be appropriately melted in the glass melting furnace, and the glass can be quickly changed. Composition. In addition, in the case where the molten glass pulled out from the pull-out outlet is introduced into the furnace before being placed under the glass melting furnace, the molten glass drawn from the pull-out outlet is introduced before the glass melting furnace is placed in advance. The furnace is turned back to -10- 201238926, and several are disposed in the horizontal direction, and a switching means for introducing the molten glass pulled out from the pull-out port to any of the forehearth is provided, and when the molten glass is pulled out from the pull-out port of the glass-melting furnace, The furnace is switched to another forehearth before the molten glass drawn from the outlet is introduced by the switching means, and it is preferable to introduce the glass raw material to be changed into the glass melting furnace from the inlet. In this way, when a plurality of forehearths are arranged in parallel and the molten glass is pulled out from the outlet of the glass melting furnace, the furnace is switched to another forehearth before the introduction of the molten glass by the switching means, thereby melting the molten glass from the glass. When the furnace is pulled out, the glass raw material to be changed in composition can be immediately put into a glass melting furnace to be melted. Thereby, the composition of the glass can be changed quickly and easily. [Effect of the Invention] According to the present invention, the lower movable partition plate is provided in the glass melting furnace, and the composition can be changed rapidly in various glass compositions. [Embodiment] Hereinafter, a preferred embodiment of a glass melting apparatus, a glass fiber manufacturing apparatus, and a glass composition changing method according to the present invention will be described in detail with reference to the drawings. In the drawings, the same reference numerals are given to the same or corresponding parts, and the repeated description is omitted. Fig. 1 is a schematic view showing a glass fiber manufacturing apparatus of the embodiment, and Fig. 2 is a cross-sectional perspective view showing the glass melting furnace shown in Fig. 1. Further, the arrows shown in Fig. 2 show the approximate path of the flow of the molten glass. As shown in FIG. 1 and FIG. 2, the glass fiber manufacturing apparatus 1 includes a glass-melting device 10 that is movably placed on one of the bottom plates -11 - 201238926 2 and a plurality of fibers that are disposed below the bottom plate 2 Device 30» Further, in the present embodiment, two fiberizing apparatuses 30 of the fiberizing apparatus 30a and the fiberizing apparatus 30b are disposed below the bottom plate 2. The glass-melting device 10 is provided with a glass melting furnace 11 for melting a glass raw material such as a glass raw material powder or a glass block, and an outer casing 18 for covering the glass melting furnace π. Further, the glass raw material powder is a powdery mixture of clay, limestone, dolomite, colemanite, strontium sand, alumina, calcium carbonate, sodium carbonate, etc., and the glass block is a molten glass formed by the molten glass raw material powder. Cool the curing person. The glass crucible melting furnace 11 is formed in a box shape having an upper opening by a slightly rectangular bottom wall 12 and a side wall 13 which is erected on the bottom wall 12. The bottom wall 12 and the side wall 13 are formed of an electric heating member that generates heat by energization, for example, molybdenum. Further, the inner surfaces of the bottom wall 12 and the side wall 13 are covered with boron nitride which has liquid repellency (spraying molten glass) to the molten glass. Further, a pair of electrode portions 13a are formed on the opposing side walls 13, and a power source 14 for supplying current is connected to each of the electrode portions 13a. Therefore, a current is supplied from the power source 14 to the glass melting furnace 1 via the pair of electrode portions 13a, and the glass melting furnace 11 is prevented from generating heat, whereby the glass raw material to be injected into the glass melting furnace 1 1 can be melted. Such a glass melting furnace 11 is formed with a first region A into which the glass raw material is charged, and a second region B from which the molten glass is drawn. Further, the bottom wall 丨 2' of the second region B is formed with a pull-out port 15 for pulling out the molten glass from the glass melting furnace 11, and is disposed between the first region A and the second region B -12 - 201238926 The partition plate 16' is provided with an upper partition plate 17 between the input port 19 in the first region A and the lower movable partition plate 16. Further, the inner surface of the pull outlet 15 is also nitrided. Covered. The lower movable partition plate 16 is a partition plate for partitioning the bottom of the glass melting furnace 11 so that the molten glass passes only from the upper portion of the glass melting furnace 11. The lower movable partition plate 16 is formed to abut against the pair of opposite side walls 13 and the bottom wall 12, and is partitioned into a flat shape of the first area A and the second area B, and is formed in the upper portion thereof. A plurality of communication holes 16a in which the area A and the second area B are in communication. Therefore, the molten glass which is melted in the first region A is communicated through the hole formed through the lower movable partition plate 16. 16a, which can move toward the second area B. The lower movable partition plate 16 is mounted to the glass melting furnace 11 so as to be movable upward in the vertical direction. Specifically, the lower movable partition plate 16 is slidably fitted in the groove 13b formed in the vertical direction of the side wall 13 of the glass melting furnace 11, and the upper end of the lower movable partition plate 16 is fixed through the outer casing. 18 and an operating rod 16b extending upward in the vertical direction. Therefore, when the operation bar 16b is pulled down on the outer side of the outer casing 18, the movable partition plate 16 connected to the lower portion of the operation bar 16b moves downward in the vertical direction along the groove 13b, and partitions (blocks) the glass. At the bottom of the melting furnace 11, only the molten glass from the communication hole 16a can be moved from the first region A to the second region B. Further, when the operation bar 16b is pulled up outside the outer casing 18, the movable partition plate 16 connected to the lower portion of the operation bar 16b moves upward in the vertical direction along the groove 13b, and opens the bottom of the glass melting furnace, allowing The molten glass is moved from the first region -13-13-201238926 to the second region B at the bottom of the glass melting furnace 11. Further, the pulling and pulling of the operating rod 16B can be performed manually or by a driving mechanism such as an actuator. The upper partition plate 17 is an upper partition of the glass melting furnace 11 in the vicinity of the liquid surface of the molten glass, and the molten glass is passed through the partition plate only from the bottom of the glass melting furnace 11. The upper partition plate 17 is formed to abut against the opposite side wall 13 and the bottom wall 12, and separates the position between the vertical lower portion of the input port 19 in the first region A and the lower movable partition plate 16 In the flat shape, a notch 17a for communicating the two regions partitioned by the upper partition plate 17 is formed in the lower portion thereof. Therefore, the molten glass which is melted vertically below the input port 19 in the first region A is passed through the gap formed in the upper partition plate 17. 7a, it is possible to move toward the lower movable partition plate 16 side of the first region A partitioned by the upper partition plate 17. The upper partition plate 17 is disposed on the first region A side of the lower movable partition plate 16 and is fixed to the glass melting furnace 11. Therefore, the molten glass which is melted vertically below the inlet port 19 in the first region A passes through the notch 17a formed in the lower portion of the upper partition plate 17, and then passes through the lower movable partition plate 16 After the communication hole 16a is communicated, it moves to the second area B and is pulled out from the pull-out port 15. Further, the bottom surface 12a of the bottom wall 12 constituting the glass melting furnace 11 is formed to be inclined downward from the first region A toward the second region B. Therefore, in a state where the lower movable partition plate 16 is moved upward in the vertical direction, the molten glass is not left in the first region A, but can be pulled from the pull-out port 15 of the bottom wall 12 formed in the second region B. Out. The outer casing 18 is formed in a box shape by the top wall 18A, the side wall 18b, and the bottom wall 18c. In the top wall 18a, above the vertical direction of the first region A of the glass melting furnace 11, an inlet port 19 for introducing the glass raw material into the glass melting furnace 11 is formed. Further, in the inlet port 19, a screw feeder 20 for supplying the glass raw material to be supplied to the glass melting furnace 11 is connected. In the side wall 18b, an inert gas introduction port 21 for introducing an inert gas into the outer casing 18 is formed. Further, an inert gas supply port 22 for supplying an inert gas to be introduced into the outer casing 18 is connected to the inert gas inlet port 2 1,. In addition, the gas to be supplied from the inert gas supply device 22 is not particularly limited as long as it is a non-oxidizing gas. For example, argon gas, nitrogen gas or the like can be used, and nitrogen gas can be stably supplied at a low cost. It is better. In the bottom wall 18c, below the vertical direction of the pull-out port 15 of the glass-melting furnace 11, a discharge port 23 for discharging the molten glass pulled out from the pull-out port 15 is formed, and the discharge is introduced into the outer casing 18. Inert gas. Further, a moving mechanism 24 for moving the outer casing 18 on the bottom plate 2 is attached to the bottom wall 18c. The moving mechanism 24 may be any mechanism for moving the outer casing 18, and may be, for example, a wheel. Further, a heat insulating material such as a refractory brick or a heat-resistant plate for insulating the glass melting furnace 11 is inserted into the outer casing 18. Further, the bottom plate 2' is formed with a molten glass for pulling the drawn glass 15 drawn from the glass melting furnace 11 into the bottom plate hole 3 of each of the fiberizing apparatuses 30. The bottom plate hole 3 corresponds to each of the fiberizing apparatuses 30, and a bottom plate hole 3a is formed in the vertical direction of the fiber -15-201238926 chemical device 30a, and a bottom plate hole 3b is formed above the vertical direction of the fiberizing device 30b. The fiberizing apparatus 30 is a device for fibrillating the molten glass drawn from the drawing outlet 15 of the glass melting furnace 1, and the fiberizing apparatus 30a and the fiberizing apparatus 3 Ob are arranged below the bottom plate 2, and arranged side by side. In the horizontal direction. Further, the fiberizing device 30a and the fiberizing device 30b are identical in structure, and the fiberizing device 30 will be described here unless otherwise specified. The fiberizing apparatus 30 is provided with a furnace 31 into which molten glass drawn from the drawing outlet 15 is introduced, a bushing 32 in which a plurality of filaments are formed from the molten glass in the front furnace 31, and a filament drawn from the liner 32. And a rotary drum 33 which is wound at a high speed; an apparatus 3 for applying a sizing agent to each of the filaments drawn from the liner 32; and a bundle roller 34 for bundling the respective filaments. The forehearth 31 is a storage tank that introduces molten glass drawn from the pull-out port 15 and adjusts the temperature of the molten glass to adjust the viscosity of the molten glass. Further, the front furnace 31a of the fiberizing apparatus 30a and the front furnace 3 1b of the fiberizing apparatus 3 Ob are arranged side by side in the horizontal direction. Further, the front furnace 31 is disposed below the vertical direction of the bottom plate hole 3A, and is formed with an upper opening 35 for introducing the molten glass drawn from the pull-out port 15. The furnace 31 is previously provided with a heating means for adjusting the temperature of the molten glass. The heating means may be, for example, an electric heater 36 that is suspended from the top surface of the front furnace 31. Further, if it is a heating means capable of adjusting the temperature of the molten glass, such as a gas burner, any means may be used instead. Electric heater 36 · -16- 201238926 The bushing 32 is provided at the bottom of the front furnace 31, and is formed with a plurality of nozzles (not shown) for spinning (for example, about 100 to 4000). This bushing 32 is provided with a heating means (not shown) for adjusting the temperature of the molten glass. This heating means is resistant to heat generation by being electrically connected in the same manner as the glass melting furnace 1 1. Therefore, the bushing 3 2 is formed of an electric heating member that generates heat by energization, and is made of, for example, platinum or a platinum alloy. Next, a method of changing the glass composition of the glass fiber produced by the glass fiber manufacturing apparatus 1 of the present embodiment will be described with reference to the drawings. First, a method of manufacturing a glass fiber using the glass fiber manufacturing apparatus 1 will be described with reference to Figs. 1 and 2 . As shown in Fig. 1 and Fig. 2, at the time of production of the glass fiber, the glass melting apparatus 1 is moved by the moving mechanism 24, and the drawing outlet 15 of the glass melting furnace n is placed in the vertical direction of the bottom plate hole 3A formed in the bottom plate 2. Above. Further, the lower movable partition plate 16 is moved downward in the vertical direction, and the bottom portion of the glass melting furnace 11 is partitioned between the first region A and the second region B. Further, the inside of the casing 18 is vacuumed or at least decompressed by a vacuum pump, and the oxygen gas present in the casing 18 is removed, and the inert gas supplied from the inert gas supply device 22 is self-retained. The operation of introducing the inert gas introduction port 21 into the outer casing 18 until the oxygen concentration in the outer casing 18 is at least 1% or less makes the inside of the outer casing 18 an inert gas atmosphere. Further, before the introduction of the inert gas, the gas filled in the outer casing 18, the inert gas introduced into the outer casing 18, and the like are discharged from the discharge port 23. Then, in a state in which the inside of the casing 18 is in an inert gas atmosphere, a current is supplied from the power supply 14 of -17-201238926 to heat the glass melting furnace 11, and a glass raw material such as a glass raw material powder or a glass block is supplied from the spiral 20. The glass raw material is supplied vertically from the inlet port 19 to the inlet port 19 of the first zone i of the glass melting furnace 11, and is melted by the heated glass. Further, at this time, the front furnace 3 sets 32a of the fiberizing apparatus 30a are also heated in advance. Then, the molten glass vertically below the input port 19 in the first region A is formed in the communication hole 16a of the lower movable partition plate 16 through the notch 1' formed in the upper partition plate 17, and moves from the first to the first The two regions B are drawn downward from the bottom wall outlet 15 formed in the second region B in the vertical direction. The drawn glass 15 is pulled into the front furnace 31a through the discharge port 23 formed in the outer casing 18, the bottom plate hole 3a formed in the outer casing 18, and the opening 35a of the front furnace 31a formed in the fiberizing apparatus 30a. A plurality of nozzles of the bushing 32a provided at the bottom of the front furnace are used as the glass filaments, and the sizing agent is applied to the plurality of nozzles of the bushing 32a by the means 37a, and then the bundle is rolled. In the sub-34a, a plurality of filaments are bundled and wound around a rotating drum 33a that rotates at a high speed to produce a glass fiber in which elongated glass filaments are bundled. Next, the glass produced by using the glass fiber device 1 will be described with reference to Figs. 3 to 7 . The method of composition of the fiber. Fig. 3 is a view showing a state in which the movable partition plate 16 is raised, and Fig. 4 is a cross-sectional perspective view showing the glass melting furnace. Fig. 5 is a view showing a state after the glass is melted. Figure 6 shows the phase of the lower movable section: the feeder is the upper part of the molten inner bottom plate 1 1 1 a and the lining is melted 7a and the shaped area A 12 is pulled out of the upper part 3 1 a of the molten bottom plate 2 Pull out. The glass is produced by this, and the dimension is shown in the state in which the furnace shown in the following 3 is moved down by -18-201238926. Fig. 7 is a view showing a state in which glass fibers of other compositions are produced. As shown in Fig. 3 and Fig. 4, when the composition of the produced glass fiber is changed, first, the supply of the glass raw material by the screw feeder 20 is stopped, and the lower movable partition plate 16 is moved upward. Then, the bottom of the glass melting furnace 11 is opened from the lower movable partition plate 16 at the bottom of the glass melting furnace 11, so that the first region A and the second region B are in communication. Therefore, the molten glass in the first region A can be moved toward the second region B by the inclination of the bottom surface 12A by the lower movable partition plate 16 without being retained in the first region A, and then from the pull-out port 15 When all the molten glass in the glass melting furnace is pulled out toward the front furnace 31a, as shown in Fig. 5, the glass melting device 10 is moved by the moving mechanism 24 to allow the glass melting furnace 11 to take the outlet 15 It is disposed above the vertical direction of the bottom plate hole 3b formed in the bottom plate 2. At this time, since the molten glass is stored in the front furnace 31a in the fiberizing apparatus 30a, the rotary drum 33a can be independently rotated from the glass melting apparatus 10 until all the molten glass stored in the front furnace 31a disappears. Continue to manufacture fiberglass. Further, in this case, the production of the glass fiber can be terminated, and the molten glass flows out from the liner 32a until all the molten glass stored in the forehearth 31a disappears. When the pull-out port 15 is disposed above the vertical direction of the bottom plate hole 3 b, as shown in FIG. 6 , the lower movable partition plate 16 is moved downward in the vertical direction, between the first area A and the second area B, The bottom of the glass melting furnace 1 1 -19- 201238926. Next, 'the inside of the outer casing 18 is made into a vacuum state by a vacuum pump or at least in a reduced pressure state'. After the oxygen contained in the outer casing 18 is removed, the inert gas is supplied from the inert gas supply device 22, and the operation is repeated several times. The operation is performed until the oxygen concentration in the outer casing 18 is at least 1% or less to make the inside of the outer casing 18 an inert gas atmosphere. Further, the timing at which the lower movable partition plate 16 is moved downward in the vertical direction may be any time series, for example, the glass may be melted if the molten glass in the glass melting furnace 1 is pulled out. The timing before the device 10 moves. Further, in a state where the inside of the casing 18 is in an inert gas atmosphere, a current is supplied from the power source 14 to heat the glass melting furnace 11, and a glass material of another composition is supplied from the screw feeder 20. Then, the glass raw material of the other composition is supplied from the inlet port 19 to the first region A of the glass melting furnace 11, and is melted by the glass melting furnace 11 which has been heated. Further, at this time, the front furnace 31b and the liner 32b of the fiberizing apparatus 30b are also heated in advance. As shown in Figs. 7 and 2, the molten glass of the other composition in which the first region A is melted is formed by the notch 17a formed in the upper partition plate 17 and the communication hole 16a formed in the lower movable partition plate 16 The first region A is moved to the second region B, and is pulled out from the pull-out port 15 of the bottom wall 12 formed in the second region B in the vertical direction. The molten glass drawn from the outlet 15 is introduced into the front furnace 31b through the discharge port 23 formed in the outer casing 18, the bottom plate hole 3b formed in the bottom plate 2, and the upper opening 35b of the front furnace 31b formed in the fiberizing apparatus 30b. Further, a plurality of nozzles from the bushing 32b provided at the bottom of the front furnace 31b are taken out as glass filaments. Moreover, the glass -20-201238926 filament sizing agent which is derived from a plurality of nozzles of the bushing 32b is coated by a plurality of nozzles, and a plurality of glass filaments are bundled by the collecting roller 34b while rotating at a high speed. The rotary drum 33b is wound, whereby glass fibers of other compositions in which elongated filaments are bundled are produced. As described above, according to the present embodiment, when the composition of the glass melted by the glass melting furnace is changed, the input of the glass raw material from the inlet port 19 is stopped, and the lower movable partition plate 16 is moved upward in the vertical direction. Since the first region A and the second region B are in communication at the bottom of the glass melting furnace 11, the molten glass in the glass melting furnace 11 passing through the notch 17a of the upper partition plate 17 is separated by the lower movable portion. The plate 16 does not stay in the first region A but can move toward the second region B, and is pulled out from the pull-out port 15. and,. By coating the inner surfaces of the bottom wall 12 and the side wall 13 of the glass melting furnace with boron nitride, the molten glass is removed from the bottom wall 12 and the side wall 13 of the glass melting furnace 1 1 , so that the residue can be greatly reduced. The molten glass of the bottom wall 12 and the side wall 13 of the glass melting furnace. Thereby, the molten glass can be quickly pulled out from the glass melting furnace 1 and the composition of the glass can be quickly changed. Further, by tilting the bottom surface 1 2 a of the glass melting furnace 1 1 downward, the molten glass is moved from the first region A to the second region B by its own weight, so that the outlet 1 can be pulled out more quickly. 5 Pull out the molten glass. In addition, the glass melting furnace 11 can be placed in various environments by providing the outer casing 18 covering the glass melting furnace 11 without impeding the injection of the glass raw material into the glass melting furnace 11, and the drawing of the molten glass from the glass melting furnace 11. . Further, by introducing an inert gas into the outer casing 18 to expose the glass melting furnace 11 to an inert gas atmosphere, oxidation of the wall 12 and the side wall 13 of the bottom 21 - 201238926 of the glass melting furnace 11 can be suppressed, so that even When the glass melting furnace 11 is heated to a high temperature, the durability of the glass melting furnace 11 can be improved, and by providing a plurality of fiberizing apparatuses 30 in parallel, the molten glass can be independently driven from the glass melting furnace 11 from the front furnace. Since the 31 is pulled out, the glass raw material to be changed in composition can be melted in the glass melting furnace 11 before the molten glass is completely pulled out from the front furnace 31. Further, in general, the time for pulling out the molten glass from the forehearth 31 is longer than the time for pulling out the molten glass from the glass melting furnace 11. Therefore, the glass fiber to be produced can be changed more quickly by such a configuration. Composition. Further, by moving the outer casing 18 by the moving mechanism 24, and selectively selecting the forehearth 3 1 to be introduced, the composition of the produced glass fiber can be easily changed. Further, the present invention is not limited to the above-described embodiment, and various modifications can be made. For example, in the above embodiment, the case where the glass melting furnace 1 is covered by the outer casing 18 is described as an example. However, it is not necessary to melt the glass. In the case where the furnace 1 is exposed to an inert gas atmosphere, it is not necessary to cover the glass melting furnace 11 with the outer casing 18. In this case, the moving mechanism 24 is attached to the glass melting furnace 11 directly or indirectly to move the glass melting furnace 11. Further, in the above embodiment, the lower movable partition plate 16 has been described in which the molten glass of the first region A is moved to the second region B by the communication hole 16a, but the bottom of the glass melting furnace 11 can be partitioned. However, it can be any shape of -22-201238926. For example, it can also be formed into a flat plate shape having a lower liquid level than the molten glass as shown in the lower movable partition plate 16 of FIG. 8 to partition the bottom of the glass melting furnace 11 and be movable from the lower portion. Above the zone partition 16', the molten glass of the first zone A is moved to the second zone B. Further, in the above-described embodiment, the glass melting furnace 11 is energized by the power source 14 to prevent the glass melting furnace η from resisting heat, but the glass melting furnace can be heated and the glass raw material can be melted. Any method can be used. For example, an acceleration type heating means in which a plurality of branch electrodes are inserted into the glass melting furnace 11 to directly heat the glass raw material and the molten glass may be employed. Moreover, in the above embodiment, The use of the moving mechanism 24 as a switching means has been described, but any means can be employed if the molten glass pulled out from the pull-out outlet 15 can be guided to any of the forehearths 3 1. For example, the glass melting device 10 may be fixed in advance, and a flow path for introducing the molten glass pulled out from the pull-out port 15 into any of the fore furnaces 31 may be provided. By switching the arrangement of the flow paths, the self-pulling outlet 15 is provided. The drawn molten glass is introduced into a desired forehearth 31. Further, in the above embodiment, the configuration in which a plurality of the fiberizing apparatuses 30 are arranged in parallel has been described. However, if the molten glass can be quickly pulled out from the front furnace, only one fiberizing apparatus 30 may be provided. Moreover, in the above-described embodiment, the form in which the molten glass pulled out from the pull-out port 15 is directly introduced into the front furnace 31 has been described. However, the glass fiber manufacturing apparatus 40 as shown in FIG. 9 may be self-pulling. The molten glass drawn from the outlet 15 is introduced into the front furnace 31 through the intermediate tank of -23-201238926 such as the molten glass storage tank 41 and the vacuum degassing furnace 4 2 . Further, the vacuum degassing furnace 42 is a furnace 43 in which the molten glass is introduced by airtightly covering the outer casing 44, and the inside of the outer casing 44 is depressurized by the decompression pump 45, thereby facilitating introduction into the furnace 43. Defoamer of molten glass inside. [Embodiment] Next, an embodiment relating to the present invention will be described. Furthermore, the invention is not limited to the embodiments. In the same manner as in the glass-melting device 10 of the above-described embodiment, the inner surface of the bottom wall 12 and the side wall 13 of the glass-melting furnace 11 is coated with boron nitride, and the lower movable partition plate 16 can be formed. The glass melting device 10 is moved upward in the vertical direction. When the molten glass is filled in the glass melting furnace 11, the lower movable partition plate 16 is pulled up, and the molten glass is pulled out from the drawing outlet 15, and how much molten glass remains in the glass melting furnace 1 is observed. As a result of this observation, it was found that the molten glass was hardly left in the side wall 13 and the bottom wall 1 2 of the first region A. Further, in the bottom wall 12 of the second region B, only a slight amount of molten glass remains, and the degree of remaining is such that the glass raw material having a glass composition to be directly changed does not hinder. As a result, it is found that the inner surface of the bottom wall 12 and the side wall 13 is covered with boron nitride, and the lower movable partition plate 16 is pulled up, so that the means for inverting the glass melting furnace U or the like is not used. Since the glass composition can be changed, the composition of the glass can be changed quickly. -24-201238926 [Industrial Applicability] The present invention can be used as a glass-melting device for melting a glass raw material, a glass fiber-making device for producing glass fibers using the glass-melting device, and a glass-melting device A method of changing the composition of the glass of the molten glass. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a schematic view showing a glass fiber manufacturing apparatus of an embodiment. Fig. 2 is a cross-sectional perspective view showing the glass melting furnace shown in Fig. 1. Fig. 3 is a view showing a state in which the lower movable partition plate is raised. Figure 4 is the glass melting shown in Figure 3. Oblique view of the section of the furnace. Fig. 5 is a view showing a state in which the glass melting furnace is moved. Fig. 6 is a view showing a state in which the lower movable partition plate is lowered. Fig. 7 is a view showing a state in which glass fibers of other compositions are produced. Fig. 8 is a view showing an example of the shape of the lower movable partition. Fig. 9 is a schematic view showing a glass fiber manufacturing apparatus equipped with a vacuum degassing furnace. [Description of main components] 1 : Glass fiber manufacturing equipment 2 : Base plate 3 ( 3 a, 3 b ): Floor hole 1〇: Glass melting device Π : Glass melting furnace - 25-201238926 12 : Bottom wall 1 2 a : Bottom surface 1 3 : side wall 1 3 a : electrode portion 13b : groove 1 4 : power supply 15 : pull outlet 16 : lower movable partition plate 1 6 a : communication hole 16b : operation bar 1 7 : upper partition plate (upper fixed type Zone partition 17a: notch 18: outer casing 1 8 a : top wall 1 8 b : side wall 1 8c : bottom wall 1 9 : input port 2 0 : screw feeder 2 1 : inert gas inlet 22 : inert gas supply device (Inert gas supply means) 2 3 : Discharge port (inert gas discharge port) 24: Moving mechanism 3 0 (30a, 30b): Fibrillation equipment 31 (31a, 31b): Forehearth -26 - 201238926 32 (32a, 32b): lining 33 (33a > 33b): vortex 34 (34a, 34b): set 3 5 (35a > 35b): upper 36 (36a - 36b): electricity 3 7 (37a, 37b): device 40: Glass fiber manufacturing equipment 4 1 = molten glass storage tank 42: vacuum degassing furnace 43: furnace 44: outer casing 45: decompression pump A: first area B: second area casing (fibration unit) Rotation of the drum (fibrosis means) roller beam (fibrosis apparatus) portion having an opening facing the heater -27-