201130761 六、發明說明： 【主張先前申請的美國申請案之益處】 此申請案主張美國申請案案號61/265,〇6〇，於2〇〇9年 11月30日申請的益處。此文件的内容及此處所提及的 公開、專利、及專利文件的整體說明書被併入作為參考。 【發明所屬之技術領域】 本發明係大致關於一種在一玻璃熔融中減少污染的方 法，且更具體而言，係關於在一玻璃攪拌程序期間減少 冷凝物所形成的污染的方法。 【先前技術】 化學及熱力的均勻性係形成良好玻璃操作的一關鍵部 份。一玻璃熔融操作的功能係大致以氣態及固態内含物 的可接受級別來生產玻璃，但此玻璃通常具有化學相異 型態的核心（或條紋或斑紋）。此等玻璃的非均勻成份在 進行熔融程序期間從各種正常事件得到，包括耐火分 解、熔融分層、玻璃表面揮發、及溫度落差。所得到的 核心在玻璃中因其顏色及/或折射率的差而係為可見的。 用於改善玻璃均句性的-種方式係將炫融玻璃通過位 於熔化物的下游的一直立置放的攪拌腔室。此等攪拌腔 室裝備了具有-中央桿的-攪拌器，其藉由—適合的馬 達轉動。多個葉片從桿延伸出，且當玻璃從攪拌腔室的 201130761 頂部通過至底部時，埜y 葉片供以混合熔融玻璃。本發 關注於此等搜掉腔宫沾丨。 ’、 , 腔至的操作’其不會引入更多缺陷至所 得到的玻璃中，呈艚而士 ^ , ^ 而5，不會引入來自經冷凝的氧化 物的缺陷。 在一玻璃攪拌腔室中的揮發性氧化物可從玻璃及攪拌 腔至中存在的任何凡素形成。某些最會揮發且最具損害 的氧化物係由Pt、As、Sb、Β'及Sn形成。在一玻璃： 融物中可冷凝氧化物的主要來源包括pt〇2的熱的鉑表 面，及B2〇3、As4〇6、Sb4〇6、及Sn〇2的玻璃自由表面。 玻璃自由表面係音咕| t 心、者玻璃的表面，其在攪拌腔室中暴 露於大*1目為玻璃自由表面上方的大氣比攪拌腔室的 外部的大氣更熱’且其大氣可包含任何或所有上述或其 他揮發性物質，所以自_勢將在自由玻璃表面上方的 大氣向上流動穿過任細„ π + Π開口，例如穿過攪拌器桿及攪拌 腔室遮蓋之間的環北《Λϊ , 衣狀工間。由於當攪拌器桿及玻璃自由 表面的距離增加時授拌腔室桿變得較冷若桿及/或遮蓋 的/皿度係比氧化物的露點更低，則攪拌腔室大氣所含有 的揮發性氧化物將冷凝於桿的表面上。當所得到的冷凝 物達到—臨界尺寸時其可剝落，而落人玻璃中且造成在 玻璃產品中的内含物或氣泡缺陷。 已e實加熱玻璃自由表面上方的桿僅部份地成功降低 玻璃熔化物t的顆粒污染’僅於冷凝物的一分層有所結 果0 201130761 【發明内容】 在本發明的-個廣的態樣中，提供在一玻璃炼化物中 附著於一攪掉腔—檀拌棒的一冷凝物收集容器及玻 璃製造系統。冷凝物收集容器包含一環狀底座部份該 底座部份具有-圓㈣壁以對環狀底㈣—預先決定的 角度附著Μ上。冷凝物收集纟器被包含於酉己置成持有 熔融玻璃的一圓柱形攪拌腔室之中。攪拌腔室包含一遮 蓋’遮蓋界定-通道穿過其中，具有一桿的一攪拌器延 伸穿過遮蓋至攪拌腔室中，從而在遮蓋及桿之間形成一 環狀間隙。推動葉片係、附著於桿上用於有效率的混合腔 室之中的熔融玻璃。 在以下的範例說明的過程中，本發明將更容易地被理 解，且其他目標、特徵'細節及優點將變得更清楚明瞭， 其將參照隨附的圖式說明’而非以任何方式暗示為限制。 【實施方式】 一第1圖圖式用於執行均勻化一玻璃熔化物的方法的— 範例裝置。第！圖的攪拌腔冑1〇包括一入口導管匕及 出口導s 14。在圖不的實施例中，熔融玻璃透過入口 導管12流至攪拌腔室中（如箭頭η所指示），且透過出 口導管Μ流出腔室（如箭頭15所顯示）。授拌腔室ι〇 匕括至夕個壁16，其理想地為圓柱形的形狀且實質上 直立地置放’儘营攪拌腔室可具有諸如橢圓形或六角形 201130761 的其他形狀。理想地，攪拌腔室壁可包括—内部襯裡i8, 包含鉑、一鉑合金或一分散強化的鉑或鉑合金（例如， 一氧化锆強化的鉑合金h具有類似的耐火特性，包括抵 抗腐蝕以及導電性的其他襯裡物質，可作為替代品。玻 璃入口導管12係位於或接近攪拌腔冑1〇的底部，而玻 璃出口導管14係位於接近攪拌腔室的頂部。然而，技藝 人士將瞭解入口導# 12及出口導管14可被反轉使； 熔融玻璃從頂部流人㈣腔室中且透過授拌腔室的底部 流出：亦可利用入口及出口導管的中間位置提供所達到 的適當攪拌（即，所欲均勻性的量）。由於生產一灌注效 應大致需要無法接受的高級別的剪應力，攪拌器理想地 並非顯著的透過攪拌腔室灌注玻璃。攪拌器及攪拌腔室 壁理想地由鉑、一鉑合金或一分散強化的鉑或鉑合金(例 如’一氧化鍅強化的鉑合金）構成。 攪拌腔室10進一步包括一攪拌器2〇，其包含桿22及 從桿向外延伸朝向授拌腔室的· 16 #多個葉片Μ。桿 22係典型地貫質上直立地置放且可轉動地固|，使得在 授拌腔室中從桿的較低部份延伸的葉# 24i少部份地 ^沒於炫融玻璃的自由表面26的下方。溶融麵的^面 溫度係典型地介於大約测U 16GGt之間的範圍，但 可取決於玻璃的組成而更高或更低。攪拌器2 〇理想地由 鉑構成’但可為一鉑合金’或一分散強化的鉑或鉑合金 (例如’一氧化錯強化的鉑合金）。 如第1圖中所顯示，攪拌腔t 1〇可包括一排出管28, 7 201130761 用於在例如系統的關閉期間從攪拌腔室移除玻璃。此外 (或取而代之的）’攪拌腔室可包括一可選的集液槽3〇。 授掉器20藉由 適5的馬區動益轉動。舉例而言，授拌器 20可由一電動馬達（未顯示）透過適當的齒輪，或由一 皮帶驅動器而轉動。 根據本實施例’撥拌腔室1 0藉由腔室遮蓋3 2覆蓋。 腔至遮蓋32可直接在壁16上靜置，或可佈置高溫度密 封物質於壁及遮蓋之間，壁及遮蓋之間的密封在任何情 況下足以避免於遮蓋及壁之間相當的氣體流。遮蓋32亦 可包括用於加熱腔室遮蓋的遮蓋加熱器34,且因此幫助 控制流過攪拌腔室的玻璃熔化物的自由表面溫度。遮蓋 加熱器34典型地包括一電阻線圈，其典型地包含鉑嵌入 腔室遮蓋耐火物質之中。電阻線圈係以一電子電路供 應，理想地為交變電流（儘管可施加直流電流），從而加 熱腔室遮蓋。腔室遮蓋從玻璃熔化物的自由表面起算典 型地係介於大約2英吋（5.08cm)及3英吋（7.62cm) 之間，但如所需要，此距離可更大。因此，容積35係界 定於攪拌腔室遮蓋32、攪拌腔室壁16及玻璃自由表面 26之間。 腔至遮盍32亦包括一通道，其中攪拌器桿22穿過該 通道通迢的内部表面可包括一襯裡，其形成殼套36。 如與攪拌腔室的其他成份一樣，殼套36理想地為抵抗腐 蝕’該腐蝕係歸因於可從熔融玻璃所發展的高溫且具腐 蝕性的氣體及冷凝物。殼套36典型地包含鉑或鉑合金。 201130761 穿=室遮：通道的桿22在桿22的外部表面及通道的 ^表面之間形成環狀間隙38，或 況下，環狀間隙係形成& 二a . 攻於杯的外部表面及殼套的内部表 面之間。為了消除混亂妝 、 况’以下僅參考殼套的内部表 面，但仍應理解為意味著 種it况’而可應用任一者。 此舉取決於界定環狀間阳 糸38的表面，其上形成冷凝物 (例如’始）。一旦A 礼、杰， ^ —疑物達到一特定尺寸之後，其將剝 落且落入玻璃溶化物26中，從而在最終玻璃產品中建立 缺陷。在腔室遮蓋32上方的桿^的此部份由含有桿加 熱器4〇的一耐火物質圍繞。在具有遮蓋加熱器34的情 兄中柃加熱益40理想地包含一電阻加熱元件。加熱元 件理想地包含鉑，但可為一鉑合金。 -隔絕層42係佈置於腔室遮蓋32的頂端上。隔絕層 44類似地圍繞桿加熱器46。環狀間隙38消除正在轉動 的#及/Λ套加熱器、隔絕及遮蓋之間的接觸。 可選地，至少一個流管5〇可從外部攪拌腔室ι〇延伸 至攪拌腔室10的内部，即，容積35。流管可被利用以 這成氣體Λ著授拌器桿流動，從而減少沿著桿的揮發性 氧化物的冷凝。 一冷凝物收集容器40係位於攪拌器桿上、遮蓋32的 下方及玻璃熔化物26的上方。容器含有一環狀平面底部 Ρ伤41大致對撥拌桿22垂直地搁置。冷凝物收集容 器進一步包含直立地置放的側壁43在外部圓周的四 周。底部部份41及側壁43的結合供以容納可形成於環 201130761 狀間隙38 #内部表面上且隨 凝物。在-個實施例中，底部…各的任㈣或其他冷 U的剖面區域。在另二，區域超過環狀間隙 ㈣收 另1施例令，從桿的外部表面至冷 1 收集容器的圓周壁的距離将八κ 壁的古声〜 ^』的距離係介於0.5-2英吋之間。側 英时至…7距'但在-個實施例中係為從0.25 央丁主1央吋的範圍。 圖;二:物收集容器4。的分離的三維視圖中可見（第2 广底部部份係與桿齊平且圍繞著桿。一圓周側壁 的/界定—内部界線。其並無頂端，使得從上方落下 :凝物將著地且變成包含於由環狀底部部份Μ及圓 m3所界定的容器中。冷凝物收集容器⑽可以任 何數量的方式㈣於桿，但在_個實施例巾，形成 圈45沿著—楣— 疋、長又接觸桿2 2。頸圈4 5可被纏繞或 被束缚至桿。在一個實施例中，冷凝物收集容器藉由 、兩個半％狀部份且將其沿著一直徑纏繞線47纏繞 在—起而組裝於桿上。 —第3圖顯示冷凝物收集容器40的一剖面視圖。在一個 實施例中，底部部份及外部圓周壁之間的角度ΘΑ可介於 90-120度之鬥 — 土 <。在一較佳實施例中，底部部份及外部圓 ° ]的角度ΘΑ係為1 〇〇度。由於頸圈45係與授拌 器桿22杳承 .. 片卞’在底部部份及頸圈之間的角度ΘΒ將與桿 的外部壁的i 冉度一致。在一個實施例中，角度ΘΒ係介於 85-90度之間。 冷凝物收集容器可由已知物質作成’該等物質具有抵 10 201130761 抗存在於攪拌腔室中的溫度的類型的能力。舉例而言， 冷凝物收集容器可由鉑構成，但可為一鉑合金，或一分 散強化的鉑或鉑合金（例如，一氧化錯強化的鉑合金）。 在操作中’冷凝物收集容器將逐漸收集經冷凝的鉑冷 凝物，其如先前所述從環狀間隙剝落。當玻璃製造系統 被取下用於維護手續時’在容器中獲得冷凝物且被丟棄 或者回收。 可對本發明作成各種其他修改及改變而不.障離本發明 的精神及範疇對技藝人士而言將為顯而易見的。因此， 本發明意圖覆蓋在隨附的申請專利範圍及其均等的範嘴 之中所提供的對本發明的修改及改變。 【圖式簡單說明】 第1圖係根據本發明的一實施例的一範例攪拌腔室的 一剖面視圖’顯示腔室遮蓋及冷凝物收集容器。 第2圖係附著於攪拌器桿的冷凝物收集容器的一部分 三維視圖。 第3圖係一範例冷凝物收集容器的一剖面視圖。 【主要元件符號說明】 W攪拌腔室 12入口導管 U箭頭 14出口導管 15箭頭 16腔室壁 201130761 18 内 部襯裡 38 環 狀 間 隙 20 攪 拌器 40 桿 加 孰 * ''X 器 22 桿 41 底 部 部 份 24 葉 片 42 隔 絕 層 26 白 由表面 43 側 壁 28 排 出管 44 隔 絕 層 30 集 液槽 45 頸 圈 32 腔 室遮蓋 46 桿 加 敎 * »»、 器 34 遮 蓋加熱器 47 直 徑 纏 繞線 35 容 積 50 流 管 36 殼 套 12201130761 VI. INSTRUCTIONS: [Advantages of the US application for the previous application] This application claims the benefit of the US application number 61/265, 〇6〇, filed on November 30, 2009. The contents of this document and the entire disclosure of the disclosures, patents, and patent documents referred to herein are hereby incorporated by reference. BACKGROUND OF THE INVENTION 1. Field of the Invention This invention relates generally to a method of reducing contamination in a glass melt, and more particularly to a method of reducing contamination formed by condensate during a glass agitation procedure. [Prior Art] Chemical and thermal uniformity is a key part of good glass operation. The function of a glass melt operation is to produce glass at roughly acceptable levels of gaseous and solid inclusions, but this glass typically has a chemically distinct core (or streaks or stripes). The non-uniform components of these glasses are obtained from various normal events during the melting process, including refractory decomposition, melt delamination, glass surface volatilization, and temperature drop. The resulting core is visible in the glass due to the difference in color and/or refractive index. One way to improve the uniformity of the glass is to pass the glazing glass through an agitating chamber that is placed upright downstream of the melt. These agitating chambers are equipped with a stirrer with a - central rod that is rotated by a suitable motor. A plurality of vanes extend from the rod, and the wild y vanes are supplied with mixed molten glass as the glass passes from the top of the agitating chamber to the bottom of 201130761. This issue focuses on such search and search. ', cavity-to-operate' does not introduce more defects into the resulting glass, presenting ^, ^, and 5, does not introduce defects from the condensed oxide. Volatile oxides in a glass agitating chamber can be formed from the glass and the agitation chamber to any of the metals present therein. Some of the most volatile and most damaging oxides are formed from Pt, As, Sb, Β' and Sn. In a glass: the main sources of condensable oxides in the melt include the hot platinum surface of pt〇2, and the glass free surface of B2〇3, As4〇6, Sb4〇6, and Sn〇2. The surface of the glass free surface is the surface of the glass that is exposed to the large surface of the glass in the agitating chamber. The atmosphere above the free surface of the glass is hotter than the atmosphere outside the agitating chamber' and its atmosphere may contain Any or all of the above or other volatile materials, so the potential will flow upward through the atmosphere above the free glass surface through any fine π π + Π openings, such as through the agitator rod and the mixing chamber between the cover Λϊ , 衣衣. Because the mixing chamber rod becomes colder when the distance between the stirrer rod and the free surface of the glass increases, the rod and/or the covered/lower degree is lower than the dew point of the oxide. The volatile oxides contained in the atmosphere of the chamber will condense on the surface of the rod. When the resulting condensate reaches a critical dimension, it can peel off and fall into the glass and cause inclusions or bubbles in the glass product. Defects. The rod above the free surface of the heated glass has only partially succeeded in reducing the particle contamination of the glass melt t. 'The result is only one layer of the condensate. 0 201130761 SUMMARY OF THE INVENTION In the aspect, a condensate collecting container and a glass manufacturing system are attached to a glass refining compound attached to a stirring chamber-tank stick. The condensate collecting container comprises an annular base portion having a base portion-circle (d) The wall is attached to the annulus at a predetermined angle to the annular bottom (four). The condensate collecting device is contained in a cylindrical stirring chamber in which the crucible has been placed to hold the molten glass. The stirring chamber contains a cover. A cover defines a passage through which a stirrer having a rod extends through the cover into the agitating chamber to form an annular gap between the cover and the rod. Pushing the blade and attaching to the rod for efficiency The molten glass in the mixing chamber will be more readily understood in the following description of the examples, and other objects, features, details and advantages will become more apparent. The illustrations are 'not intended to be limiting in any way. [Embodiment] A first embodiment is a method for performing a method of homogenizing a glass melt. The stirring chamber of the Fig. Inlet conduit 出口 and outlet guide s 14. In the illustrated embodiment, the molten glass flows through the inlet conduit 12 into the agitation chamber (as indicated by arrow η) and exits the chamber through the outlet conduit (as indicated by arrow 15) Shown. The mixing chamber is circumscribed to the wall 16, which is ideally cylindrical in shape and placed substantially upright. 'The camping chamber can have other shapes such as elliptical or hexagonal 201130761. Desirably, the agitating chamber wall may include an inner liner i8 comprising platinum, a platinum alloy or a dispersion strengthened platinum or platinum alloy (eg, a zirconia reinforced platinum alloy h having similar fire resistance properties, including resistance to corrosion As well as other lining materials that are electrically conductive, the glass inlet conduit 12 is located at or near the bottom of the agitation chamber 胄1〇, and the glass outlet conduit 14 is located near the top of the agitation chamber. However, the skilled artisan will appreciate that the inlet guide #12 and the outlet conduit 14 can be reversed; the molten glass flows from the top flow chamber (four) chamber through the bottom of the mixing chamber: the intermediate position of the inlet and outlet conduits can also be utilized The appropriate agitation achieved (i.e., the amount of uniformity desired) is provided. Since the production of a perfusion effect generally requires unacceptably high levels of shear stress, the agitator desirably does not significantly infuse the glass through the agitation chamber. The agitator and agitating chamber walls are desirably comprised of platinum, a platinum alloy or a dispersion strengthened platinum or platinum alloy (e.g., a ruthenium oxide enhanced platinum alloy). The agitation chamber 10 further includes a stirrer 2, which includes a rod 22 and a plurality of vanes 向外 extending outwardly from the rod toward the mixing chamber. The rod 22 is typically placed upright and rotatably so that the leaf #24i extending from the lower portion of the rod in the mixing chamber is less free of glazing Below the surface 26. The surface temperature of the molten surface is typically in the range between approximately U 16GGt, but may be higher or lower depending on the composition of the glass. The agitator 2 is desirably composed of platinum 'but may be a platinum alloy' or a dispersion-strengthened platinum or platinum alloy (e.g., a platinum-oxidized platinum alloy). As shown in Figure 1, the agitation chamber t1〇 can include a discharge tube 28, 7201130761 for removing glass from the agitation chamber during, for example, shutdown of the system. Additionally (or alternatively) the agitation chamber may include an optional sump 3〇. The eliminator 20 is rotated by the appropriate 5 horse zone. For example, the agitator 20 can be rotated by an electric motor (not shown) through a suitable gear or by a belt drive. According to this embodiment, the mixing chamber 10 is covered by the chamber cover 32. The cavity to cover 32 can be placed directly on the wall 16, or a high temperature sealing material can be placed between the wall and the cover. The seal between the wall and the cover is sufficient in any case to avoid a considerable gas flow between the cover and the wall. . The cover 32 may also include a cover heater 34 for heating the chamber cover and thus help control the free surface temperature of the glass melt flowing through the agitation chamber. The cover heater 34 typically includes a resistive coil that typically includes a platinum embedding chamber to cover the refractory material. The resistive coil is supplied by an electronic circuit, ideally an alternating current (although a direct current can be applied) so that the heating chamber is covered. The chamber cover is typically between about 2 inches (5.08 cm) and 3 inches (7.62 cm) from the free surface of the glass melt, but this distance can be greater if desired. Thus, the volume 35 is defined between the agitating chamber cover 32, the agitating chamber wall 16 and the glass free surface 26. The cavity to concealer 32 also includes a passageway through which the inner surface of the agitator rod 22 through the passageway may include a liner that forms the casing 36. As with the other components of the agitating chamber, the casing 36 is desirably resistant to corrosion. This corrosion is attributed to the high temperature and corrosive gases and condensates that can be developed from the molten glass. The casing 36 typically comprises platinum or a platinum alloy. 201130761 wear = chamber cover: the rod 22 of the passage forms an annular gap 38 between the outer surface of the rod 22 and the surface of the passage, or the annular gap is formed & 2 a. attack the outer surface of the cup and Between the inner surfaces of the casing. In order to eliminate the messy makeup, the following is only referred to the inner surface of the casing, but it should be understood to mean any kind of application. This depends on the surface defining the inter-annular imperfections 38 on which condensate is formed (e.g., 'starting'). Once A, Li, and ^ suspects reach a certain size, they will peel off and fall into the glass melt 26, creating defects in the final glass product. This portion of the rod above the chamber cover 32 is surrounded by a refractory material containing a rod heater 4〇. In the case of the occupant heater 34, the heating element 40 desirably comprises a resistive heating element. The heating element desirably comprises platinum but can be a platinum alloy. The insulating layer 42 is arranged on the top end of the chamber cover 32. The barrier layer 44 similarly surrounds the rod heater 46. The annular gap 38 eliminates the contact between the rotating #, / / sleeve heater, insulation and cover. Alternatively, at least one flow tube 5〇 may extend from the external agitation chamber ι to the interior of the agitation chamber 10, i.e., volume 35. The flow tube can be utilized to flow the gas into the mixer rod, thereby reducing condensation of volatile oxides along the rod. A condensate collection vessel 40 is located on the agitator shaft, below the cover 32 and above the glass melt 26. The container contains an annular flat bottom. The bruise 41 is placed substantially perpendicular to the plucking rod 22. The condensate collection container further includes four sides of the outer circumferential side 43 that are placed upright. The combination of the bottom portion 41 and the side walls 43 is provided for accommodating on the inner surface of the ring 2011 #761-like gap 38 # with the condensate. In one embodiment, the bottom ... each of the (four) or other cold U section areas. In the other two, the area exceeds the annular gap (4) and the other example is applied. The distance from the outer surface of the rod to the circumferential wall of the cold 1 collection container is the distance of the ancient sound of the eight κ wall ~ ^ 』 between 0.5-2 Between the miles. Side English to ... 7 distance 'but in an embodiment is from 0.25 丁 主 main 1 range. Figure 2: Object collection container 4. Visible in a separate three-dimensional view (the second wide bottom portion is flush with the rod and surrounds the rod. A circumferential side wall defines/internal boundary. It has no top end, allowing it to fall from above: the condensate will land and It becomes contained in a container defined by the annular bottom portion Μ and the circle m3. The condensate collecting container (10) can be in any number of ways (four) on the rod, but in the _ embodiment towel, forming a circle 45 along the 楣-楣Long and in contact with the rod 2 2. The collar 45 can be wrapped or bound to the rod. In one embodiment, the condensate collection container is wound by a diameter of two halves and is wound along a diameter 47 is wrapped around the rod and assembled on the rod. - Figure 3 shows a cross-sectional view of the condensate collection container 40. In one embodiment, the angle ΘΑ between the bottom portion and the outer circumferential wall may be between 90 and 120. In the preferred embodiment, the angle of the bottom portion and the outer circle is 1 degree. Since the collar 45 is attached to the stirrer rod 22.卞'The angle ΘΒ between the bottom part and the collar will be the same as the i 冉 of the outer wall of the rod In one embodiment, the angle enthalpy is between 85 and 90 degrees. The condensate collection container can be made of known materials 'these materials have the ability to resist the type of temperature that exists in the agitating chamber 10 201130761. In contrast, the condensate collection vessel may be comprised of platinum, but may be a platinum alloy, or a dispersion strengthened platinum or platinum alloy (eg, a platinum-oxidized platinum alloy). In operation, the condensate collection vessel will gradually collect. The condensed platinum condensate, which is peeled off from the annular gap as previously described. When the glass manufacturing system is removed for maintenance procedures, 'condensate is obtained in the vessel and discarded or recycled. Various other modifications can be made to the invention. It is obvious to those skilled in the art that the present invention is intended to cover the scope of the present invention. MODIFICATION AND CHANGE. [FIG. 1] FIG. 1 is a cross-sectional view of an exemplary stirring chamber according to an embodiment of the present invention. Condensate collection container. Figure 2 is a three-dimensional view of a portion of the condensate collection container attached to the agitator rod. Figure 3 is a cross-sectional view of an exemplary condensate collection container. [Main component symbol description] W stirring chamber 12 Inlet duct U arrow 14 outlet duct 15 arrow 16 chamber wall 201130761 18 internal lining 38 annular gap 20 stirrer 40 rod twist * ''X 22 22 pole bottom part 24 blade 42 insulation layer 26 white by surface 43 side wall 28 Discharge tube 44 insulation layer 30 sump 45 collar 32 chamber cover 46 rod 敎 * »», unit 34 cover heater 47 diameter winding line 35 volume 50 flow tube 36 shell 12