14 ο Α7 Β7 五、發明說明（ 【發明背景】 ， 本發明係關於一種可排除氣體的多級爐。 【發明槪要】 第WO99/29910號專利申請案係大致描述—種多級爐 。其係包含有一系列以垂直方式分開陳列的爐床，且間隔 配置著兩種型式的爐床。第一型爐床具有一開放中心的圓 形部分，而第二型爐床則具有一系列沿著該爐床之周邊而 分佈的開孔。欲進行處理的材料係被導引到上側的爐床。 一具有延伸於該爐床上方之攪拌棒的垂直驅動軸桿，係可 促使該等材料前進超過該爐床，因而可使該等材料從爐床 到爐床朝向該爐子的底部行進。如果，其中係存在有鐵礦 石之預先還原或是帶有金屬氧化物之廢棄物的處理，則此 (等）物料係被混合以一種諸如煤炭的含碳還原劑，且該 混合物係達到一可使該金屬氧化物在該底級中達成還原的 溫度。其亦値得從該還原過程中移除一部分氣體，以便在 該多級爐內的另一點噴注該氣體，或者運用此氣體的發熱 値。這種情形係藉由從該爐之外側壁所露出的排氣管而達 成。爲了達到最大的氣體流率，該等排氣管大致係呈水平 方式配置，且其剖面係經調整以與在兩個連續爐床之間的 距離槪略相同，亦即與該級的高度大約相同·»然而，由於 在該爐內之循環的空氣速度非常高，以致造成大量的灰塵 會隨著該氣體而排除'。這些灰塵將傾向於沉澱在與該爐子 連結之管子的端部中，並因此導致該管子阻塞，而妨礙該 氣體的排除。而且，若該導入爐子內之物料的顆粒尺寸愈 (請先閱讀背面之沒意事項再填寫本頁) tr*- --線 經濟部智慧財產局員工消費合作社印製 經濟部智慧財產局員工消费合作社印製 A7 B7 五、發明說明（i) 細緻，則沉澱和阻塞的問題也會變得愈嚴重。因此，這種 形式的問題將會影響在一個多級爐中用以還原該金屬氧化 物的方法，因爲其一般都是採用具有微細顆粒尺寸的灰塵 和煤炭進行。此外，由於高溫以及構成該沉澱的物料之故 ，該等沈積的灰塵將趨向於轉化成堅硬層，而終至不易淸 除。14 ο Α7 Β7 V. Description of the invention (Background of the invention) The present invention relates to a multi-stage furnace capable of excluding gas. [Summary of the invention] Patent application No. WO99 / 29910 describes roughly a kind of multi-stage furnace. The system contains a series of hearths that are displayed separately in a vertical manner, and two types of hearths are arranged at intervals. The first hearth has a circular section with an open center, while the second hearth has a series of Openings distributed around the hearth. The material to be processed is guided to the hearth on the upper side. A vertical drive shaft with a stirring rod extending above the hearth promotes the material Beyond the hearth, so that the material can travel from the hearth to the hearth toward the bottom of the furnace. If there is a pre-reduction of iron ore or the treatment of waste with metal oxides, then The material is mixed with a carbon-containing reducing agent such as coal, and the mixture reaches a temperature at which the metal oxide can be reduced in the bottom stage. It is also removed from the reduction process. Part of the gas in order to inject the gas at another point in the multi-stage furnace, or use the heat generated by this gas. This situation is achieved by the exhaust pipe exposed from the outer side wall of the furnace. In order to achieve maximum The gas flow rate of these exhaust pipes is generally arranged horizontally, and the cross section is adjusted to be slightly the same as the distance between two continuous hearths, that is, about the same as the height of the stage. However, the velocity of the air circulating in the furnace is so high that a large amount of dust will be removed with the gas. 'This dust will tend to settle in the ends of the tubes connected to the furnace, and as a result The tube is blocked, which prevents the gas from being removed. Also, if the particle size of the material introduced into the furnace is larger (please read the unintentional matter on the back before filling in this page) tr *--staff of the Intellectual Property Bureau of the Ministry of Economic Affairs Printed by the Consumer Cooperative, printed by the Intellectual Property Bureau of the Ministry of Economic Affairs, printed by the Consumer Cooperative A7, B7 V. Description of the invention (i) If the details are detailed, the problem of precipitation and blockage will become more serious. Therefore, this form of question The method used to reduce the metal oxide in a multi-stage furnace will be affected because it is generally carried out with dust and coal having a fine particle size. In addition, due to the high temperature and the materials that constitute the precipitation, such The deposited dust will tend to turn into a hard layer, and eventually it will not be easily removed.
【發明目的】 I 本發明目的是提出一種具有改良排氣的多級爐。依據 本發明，該目的係藉由一種多級爐而達成，該多級爐係包 含有至少一個連結一級之傾斜的排氣管，及一個配置在該 級之周邊的中間腔室，該中間腔室係將該級的內部連結至 該排氣管的一個底端部。該中間腔室係包含有一個與該級 之內部連通的開口、一個與該排氣管之底端部連接的出口 ，和一個設置在通往該出口之路徑上的沉澱表面，該出口 係位在該沉積表面的上方。 【發明槪述】 一種依據本發明之多級爐係包含有至少一個連結有一 級之傾斜的排氣管，及一個配置在該級之周邊的中間腔室 ，其中該中間腔室係將該級的內部連結至該排氣管的一個 底端部。該中間腔室係包含有一個與該級之內部連通的開 口、一個與該排氣管之底端部連接的出口和一個設置在通 往該出口之路徑上的沉澱表面。較佳地，該出口係位在該 沉澱表面的上方。當在該爐子中實施一處理過程時，該排 氣管係可自該級的內部排除至少一部分之氣體。實際上， 4 本紙張尺度適用中國a家摞準（CNS)A4規格（210 X 297公釐） ^4—ΙΊΙΙΙΙΙΙ — ------* I !.-------* (請先閱讀背面之注意事項再填寫本頁) 經濟部智慧財產局貝工消费合作社印製 A7 ______B7_____ 五、發明說明（） 該等氣體係可穿越該開口而進入中間琴室。在經由通往該 與排氣管連結之出口路徑中，該等氣體係通過該沉源表面 的上方，而其中部分的灰塵係沉積在該沉澱表面上。此外 ，由於該排氣管係傾斜地朝向該級’因而該可能沉積在排 氣管內的灰塵係被導回該中間腔室內。然後，灰塵便經由 該開口而沉降到位在該轉口下方的沉澱表面上。該灰塵並 不會累積在排氣管中，且氣體的排除也不會因灰塵的出現 而受到影響。因此，依據本發明之多級爐係具有一改良的 排氣管。 該中間腔室的幾何形式係可容許該排氣管採取任何的 傾斜方式和剖面形狀。 事實上，具備較大傾斜的排氣管係能夠將沉積在該管 內的情形減至最少，因爲沉積在管壁上的物料將具有沿著 管壁滑移的趨勢，而掉落到該中間腔室的沉澱表面上。 該設置在爐子與排氣管之間的中間腔室係能夠採用一 支具有一較大剖面的排氣管，因爲這種情形不會受到在兩 個連續爐級之間高度的限制。 有利地，無論該中間腔室的結構爲何，其皆可以具備 一個淸理機構，以便淸理該沉澱表面。 該中間腔室係可建構成密緻的形式，以利該排氣管可 簡易地與該級的內部連結。然而，較佳地，中間腔室係環 繞著該級，而且該開口係與該級的內部連通並延伸至其整 個周邊的上方。如此，該沉澱表面便可環繞著該級。因而 ，該級便具有一個延伸在其整個周邊並可用以收集含納在 5 本紙張尺度適用中困國家標準（CNS)A4现袼（210 X 297公s ) ' 1 . —-裝'·^--------訂 ----------線 (請先閱讀背面之注意事項再填寫本頁) A7 442645 五、發明說明（Ψ ) 該等氧體裡之部分灰塵的有效沉殿表谭。 當該中間腔室環繞著該級且該沉澱表面延伸至該級的 整個周邊時，該在多級爐之旋轉軸桿上的攪拌棒之其中一 者便可延伸到該沉澱表面上方，以便將沉積的灰塵帶到該 級的內部。因此，這個用於中間腔室的結構便具備可促進 淸理該沉澱表面的優點。 依據一個較佳的實施例，該中間腔室的剖面係呈三角 形。較佳地，該沉澱表面係大致呈水平且配置在該級之底 部的高度’因而構成該三角形的基部。一攜載該排氣管之 出口的外側壁係構成該三角形的一側邊，而該三角形的第 二側邊則與通達該級之內部的開口疊置；並且，該外側壁 係延伸超過該級的整個高度。這種用於該中間腔室的結構 係使得該中間腔室能夠將該出口連接至一具有底端部直接 切穿的排氣管，亦即不需再製作斜切削角。 如該技術目前狀態所示，該多級爐的級係實質地具備 有呈間置且具有中央開口的爐谏及具有周邊開口的爐床。 因而，其係可將數個級連接至排氣管。較佳地，該等排氣 管係與具備具有周邊開口之爐床的級相連結。因而，處於 —個具備一含有中央開口之爐床的級內之物料，便掉落在 靠近該具有周邊開口之爐床的中央處，並且處於一個具備 一排氣管和一中間腔室的級內。這種情形係可防止部分的 物料自上側爐床直接掉落在該沉澱表面之上；而且，若該 物料係源自一個具有周邊開口的爐床，則上述情形的發生 將導致危險。 6 本纸張尺度適用中國钃家標準<CNS>A4規格（210 * 297公釐） <請先閱讀背面之注意事項再填寫本頁) -§j· ，線 經濟部智慧財產局員工消f合作社印製 442645 A7 B7 五、發明說明（r) 該排氣管每次係可以露出到一個主要排氣管中’其係 可使集中該排除的氣體。 該中間腔室的外側壁中係可安裝至少一個檢測埠，以 便檢測和維護該中間腔室。 根據另一個實施例，一個級可與許多排氣管相連。該 等排氣管每次係可藉由一個中間腔室（例如藉由將該等排 氣管環繞該級而分佈的方式）而與該級的內部連結。如果 該中間腔室係環繞該級，則係可藉由在該中間腔室的外側 壁內製作許多出口，以使該等排氣管連結至該級的內部。 【元件符號說明】 (請先閱讀背面之注意事項再填寫本頁) 裝 經濟部智慧財產局負工消費合作社印製 10 多級爐之區域 11 圓柱形外側壁 12 具中央開口之爐床 14 具周邊開口之爐床 16 級 18 垂直旋轉軸桿 20 攪拌棒 22 ' 2T ' 22" 排氣管 24 、 24’ 、 24” 主要排氣管 26 中間腔室 27 底端部 28 沉澱表面 30 外側壁 32 出口 7 訂· -線. 本紙張尺度適用中困國家標準（CNS)A4规格（210 * 297公釐） 4 4 A7 B7 經濟部智慧財產局S工消费合作社印製 五、發明說明（έ) 34 開口 35 內側壁 36 檢測埠 【圖式簡單說明】 本發明其它特別的特徵和特色，將藉由詳細地針對以 下做爲說明範例的一個有利的實施例所進行的敘述，並且 參考所附圖式，而更加明晰。其中： 第1圖係爲一具有根據本發明可排除氣體之多級爐的 一個區域之剖面圖；以及 第2圖係爲第1圖中之具有可排除氣體之多級爐的一 個區域之立體圖。 【較佳實施例詳細說明】 在該等圖式中，相同的參考標號係代表相同或類似的 元件。 第1圖係繪示一依據本發明之具有可排除氣體之多級 爐的較佳實施例之剖面圖。其中只顯示該多級爐的一個區 域10，亦即該級的一部分。這種多級爐係包含有一個圓柱 形的外側壁11和一系列呈垂直隔離的環狀爐床。其中兩種 型式之爐床12和I4係爲間隔地設置。第一型爐床12係具 有一開放中央的圓形部分，而第二型爐床14則具有一系列 沿著該爐床之周邊而分佈的開孔。如第1圖所示，一個級 16係包含有一個爐床和一個在此爐床上方的空間，而此空 間係向上到達位於此爐床之正上方的爐床爲止。該多級爐 8 本紙張尺度適用中Η困家標準<CNS>A4规格（210 X 297公釐〉 ---------------裝"I (請先閱讀背面之注意事項再填寫本頁) :訂 線- A7 ______B7__ 五、發明說明（7 ) 亦在其中央部位具備一個垂直的旋轉辦桿18,該軸桿18 係附著於攪拌棒2〇，該攪拌棒20係延伸於該爐床12和14 之整個半徑上方。當該金屬氧化物的還原完成後，該金屬 氧化物一般係以細顆粒的形式而引導至該第一爐床（未圖 示）中。由該垂直的旋轉軸桿18所驅動的攪拌棒20係使 該等金屬氧化物擴散並將它們向該中央開口抽引，而該等 金屬氧化物係藉由該中央開口而掉落在設置於其正下方的 爐床上。然後，該攪拌棒20係將該等金屬氧化物導引至該 周邊的開孔，經由該等周邊開孔 > 金屬氧化物係掉落至下 一個爐床上。這些步驟係一再地重覆，直到該等金屬氧化 物到達該最低的爐床爲止。之後，該金屬氧化物即排除且 被稱爲預先還原的金屬氧化物。該還原的材料（諸如煤炭 )一般亦具有微細顆粒的尺寸，其係可被引導至該第一爐 床的高度，或亦可處在一較低的高度。當該爐內的金屬氧 化物下降時，藉由該還原過程所產生的氣體係會升高，此 係表示其係一種逆流的反應器。而該來自還原反應的氣體 係可以在該爐的較高部分藉由噴注空氣或氧氣而被燃燒。 然而，其亦値得自該還原區域抽離出至少一部分的氣 體，以便將它們噴注到該爐子的較高處，或運用它們的發 熱値或在爐子將它們燃燒。爲達此目的，可在該還原區域 之該高度處爲該等氣體的排除作準備。 需注意的是，在第1圖中所描繪之爐床的區域中， 該每一級均與一排氣管22相結合，該每一級係包含有一個 具有一中央開孔Η的爐床。該等排氣管22係在其上端部 (請先閱讀背面之注意事項再填寫本頁) ，訂， i線· 經濟部智慧財產局員工消f合作社印製 本紙張尺度適用4*國國家橾舉（CNS)A4規格（210 X 297公釐） A7 442645 ____B7 ___ 五、發明說明（Υ ) 露出並進入一個主要排氣管24中。値得注意的是’ 一個中 間腔室26係環繞於每一個結合有一支排氣管22 (亦請參 閱第2圖）之級的周圍，並將該級的內部與該結合之排氣 管22的一底端部27連結。該中間腔室26係具有一個三角 形的截面。一個大致爲水平的沉澱表面28係配置在該級之 底部的相同高度，且係構成該三角形的底部。該三角形的 一側邊是由該中間腔室26的一個外側壁30所構成，其中 該中間腔室26係具有一個出口 32連結至該排氣管22之底 端部27。該出口 32係位在該沉澱表面28的上方。該三角 形的另一側邊係與一個開口 34疊置且係大致地延伸超過該 級的整個高度，其中該開口 34係與該級的內部連通。該沉 澱表面28和開口 34係延伸越過該級的整個周邊。因而， 環繞該級的沉澱表面28係爲一周邊的環狀表面。 根據本發明的多級爐具有一個改良的排氣管，且此排 氣管係非常適於做爲會伴隨釋出大量灰塵的處理之用。事 實上’由於每一個結合有一支排氣管22的級，其整個周邊 對於該中間腔室26係爲開放，因而部分的灰塵係會自然地 沉積在該環繞著該級或爐床的沉殿表面28上。亦値得注意 的是’爲了經由該排氣管22而離開該爐子，該等氣體係在 其通往出口 32的路徑上受驅迫而通過該沉澱表面28上方 。這種情形即可確保該氣體通過該沉澱表面28。從第1圖 中可以看出，該沉殿表面28係位置在該出口 32的下方。 由於該排氣管22係爲傾斜的，因此沉積在該排氣管22之 內側壁35上的灰塵係會沿著該內側壁μ而下降，並掉落 _____10 紙張尺度適用中國國家標準（CNS)A4規袼（210 X 297公釐）--- ---------------裝W-- {請先閲讀背面之注意事項再填寫本頁) 「訂_ _ 線' 經濟部智慧財產局員工消费合作社印製 442645 A7[Objective of the Invention] The object of the present invention is to propose a multi-stage furnace with improved exhaust. According to the present invention, the object is achieved by a multi-stage furnace, which comprises at least one inclined exhaust pipe connected to one stage, and an intermediate chamber arranged around the stage, the intermediate chamber The chamber system connects the interior of the stage to a bottom end of the exhaust pipe. The intermediate chamber system includes an opening communicating with the interior of the stage, an outlet connected to the bottom end of the exhaust pipe, and a sedimentation surface provided on a path leading to the outlet. The outlet system Above the deposition surface. [Invention description] A multi-stage furnace system according to the present invention includes at least one inclined exhaust pipe connected to one stage, and an intermediate chamber disposed around the stage, wherein the intermediate chamber is the stage The inside of is connected to a bottom end of the exhaust pipe. The intermediate chamber contains an opening communicating with the interior of the stage, an outlet connected to the bottom end of the exhaust pipe, and a sedimentation surface provided on a path to the outlet. Preferably, the outlet is located above the precipitation surface. When a treatment process is performed in the furnace, the exhaust pipe system can remove at least a part of the gas from the inside of the stage. In fact, 4 paper sizes are applicable to China AS Standard (CNS) A4 (210 X 297 mm) ^ 4—ΙΊΙΙΙΙΙΙΙ — ------ * I! .------- * (Please Please read the notes on the back before filling this page) A7 printed by Shelley Consumer Cooperative of Intellectual Property Bureau of the Ministry of Economic Affairs ______B7_____ V. Description of Invention () These gas systems can pass through this opening and enter the middle piano room. In the path leading to the outlet connected to the exhaust pipe, the gas systems pass above the surface of the sinking source, and part of the dust is deposited on the sedimentary surface. In addition, since the exhaust pipe system is inclined toward the stage ', the dust system that may be deposited in the exhaust pipe is guided back to the intermediate chamber. The dust then settles through the opening onto a sedimentary surface located below the re-entry port. This dust does not accumulate in the exhaust pipe, and the removal of gas is not affected by the appearance of dust. Therefore, the multi-stage furnace system according to the present invention has an improved exhaust pipe. The geometry of the intermediate chamber allows the exhaust pipe to take any tilting and cross-sectional shape. In fact, the exhaust pipe system with a large slope can minimize the deposition in the pipe, because the material deposited on the pipe wall will have a tendency to slide along the pipe wall and fall into the middle The sedimentation surface of the chamber. The intermediate chamber system provided between the furnace and the exhaust pipe can use an exhaust pipe having a large cross section, because this situation is not limited by the height between two consecutive furnace stages. Advantageously, regardless of the structure of the intermediate chamber, it may be provided with a claw mechanism for cleaving the precipitation surface. The intermediate chamber can be constructed in a dense form so that the exhaust pipe can be easily connected to the interior of the stage. Preferably, however, the intermediate chamber surrounds the stage, and the opening communicates with the interior of the stage and extends over its entire periphery. In this way, the precipitation surface can surround the stage. Therefore, this class has a national standard (CNS) A4 (210 X 297 male s) that extends over its entire periphery and can be used to collect and contain the 5 paper standards applicable (210 X 297 s) '1. --- installed' · ^ -------- Order ---------- Line (Please read the precautions on the back before filling this page) A7 442645 V. Description of the invention (Ψ) Part of the dust in the oxygen The effective Shen Dian table Tan. When the intermediate chamber surrounds the stage and the precipitation surface extends to the entire perimeter of the stage, one of the stirring rods on the rotating shaft of the multi-stage furnace can extend above the precipitation surface so that the The deposited dust is carried inside the stage. Therefore, this structure for the intermediate chamber has the advantage of facilitating the treatment of the precipitation surface. According to a preferred embodiment, the cross section of the intermediate chamber is triangular. Preferably, the precipitation surface is substantially horizontal and is disposed at a height 'at the bottom of the stage, thus constituting the base of the triangle. An outer side wall carrying the outlet of the exhaust pipe constitutes one side of the triangle, and the second side of the triangle overlaps the opening leading to the interior of the stage; and the outer side wall extends beyond the The entire height of the stage. This structure for the intermediate chamber enables the intermediate chamber to connect the outlet to an exhaust pipe with a bottom end cut directly through, i.e., no oblique cutting angle is required. As shown in the current state of the technology, the stages of this multi-stage furnace are substantially provided with a grate that is spaced apart and has a central opening, and a hearth that has a peripheral opening. Thus, it can connect several stages to the exhaust pipe. Preferably, the exhaust pipes are connected to a stage having a hearth with a peripheral opening. Thus, the material in a stage with a hearth with a central opening is dropped close to the center of the hearth with a peripheral opening, and in a stage with an exhaust pipe and an intermediate chamber Inside. This situation prevents part of the material from falling directly on the sedimentary surface from the upper hearth; moreover, if the material originates from a hearth with a peripheral opening, the occurrence of the above situation will cause danger. 6 This paper size applies to China's family standards < CNS > A4 (210 * 297 mm) < Please read the notes on the back before filling this page) -§j · Printed by f cooperative 442645 A7 B7 V. Description of the invention (r) The exhaust pipe can be exposed to a main exhaust pipe each time. 'This system can concentrate the gas to be excluded. At least one detection port may be installed in an outer side wall of the intermediate chamber to detect and maintain the intermediate chamber. According to another embodiment, one stage may be connected to many exhaust pipes. The exhaust pipes can be connected to the interior of the stage at a time by an intermediate chamber (for example, by distributing the exhaust pipes around the stage). If the intermediate chamber surrounds the stage, the exhaust pipes can be connected to the inside of the stage by making many outlets in the outer wall of the intermediate chamber. [Description of component symbols] (Please read the precautions on the back before filling this page.) Printed by the Consumer Property Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs. Area of a multi-stage furnace. 11 Cylindrical outer wall. 12 Hearth with a central opening. Open hearth 16 levels 18 Vertical rotating shaft 20 Stirring rod 22 '2T' 22 " Exhaust pipe 24, 24 ', 24 "Main exhaust pipe 26 Middle chamber 27 Bottom end 28 Sedimentation surface 30 Outer side wall 32 Exit 7 order · -line. This paper size applies to the national standard (CNS) A4 specification (210 * 297 mm) 4 4 A7 B7 Printed by the Intellectual Property Bureau of the Ministry of Economic Affairs, S Industrial Consumer Cooperative, V. Invention Description (Handed) 34 Opening 35 Inner side wall 36 Detection port [Simplified illustration of the drawing] Other special features and characteristics of the present invention will be described in detail by referring to the following an advantageous embodiment as an illustrative example, and referring to the attached drawings Figure 1 is a cross-sectional view of a region with a multi-stage furnace capable of excluding gas according to the present invention; and Figure 2 is a diagram with excluding A perspective view of a region of a gas multi-stage furnace. [Detailed description of the preferred embodiment] In these drawings, the same reference numerals represent the same or similar components. The first diagram is a diagram of a device according to the present invention. A cross-sectional view of a preferred embodiment of a multi-stage furnace capable of excluding gas. Only a region 10 of the multi-stage furnace, which is a part of the stage, is shown. This multi-stage furnace system includes a cylindrical outer wall 11 And a series of ring-shaped hearths that are vertically isolated. Two types of hearths 12 and I4 are arranged at intervals. The first hearth 12 has an open central circular section, and the second hearth 14 has a series of openings distributed along the perimeter of the hearth. As shown in Figure 1, a stage 16 series contains a hearth and a space above the hearth, and this space reaches upward It is located up to the hearth directly above the hearth. The paper size of this multi-stage hearth is applicable to the standard of the Chinese family < CNS > A4 (210 X 297 mm) ----------- ---- Equipment " I (Please read the precautions on the back before filling this page): Thread-A7 _ _____B7__ 5. Description of the invention (7) It also has a vertical rotating rod 18 at its center. The shaft 18 is attached to the stirring rod 20, and the stirring rod 20 extends over the entire radius of the hearth 12 and 14. Above. After the reduction of the metal oxide is completed, the metal oxide is generally guided into the first hearth (not shown) in the form of fine particles. Stirring driven by the vertical rotating shaft 18 The rod 20 diffuses the metal oxides and draws them toward the central opening, and the metal oxides fall on the hearth provided directly below the central opening through the central opening. Then, the stirring rod 20 guides the metal oxides to the peripheral openings, and the metal oxides are dropped to the next hearth via the peripheral openings. These steps are repeated until the metal oxides reach the lowest hearth. This metal oxide is then excluded and referred to as a pre-reduced metal oxide. The reduced material (such as coal) also generally has the size of fine particles, which can be guided to the height of the first hearth, or can also be at a lower height. When the metal oxide in the furnace decreases, the gas system produced by the reduction process will rise, which indicates that it is a countercurrent reactor. The gas from the reduction reaction can be burned in the upper part of the furnace by injecting air or oxygen. However, it also extracts at least a part of the gas from the reduction area in order to inject them to the higher part of the furnace, or to use their heating purge or burn them in the furnace. To this end, preparations for the removal of such gases may be made at that height in the reduction zone. It should be noted that, in the area of the hearth depicted in FIG. 1, each stage is combined with an exhaust pipe 22, and each stage includes a hearth with a central opening. These exhaust pipes 22 are at the upper end (please read the precautions on the back before filling this page), order, i-line · Employees of the Intellectual Property Bureau of the Ministry of Economic Affairs, printed by the cooperative, this paper applies to 4 * countries Lift (CNS) A4 specification (210 X 297 mm) A7 442645 ____B7 ___ 5. Description of the invention (Υ) Exposed and enters a main exhaust pipe 24. It is important to note that an intermediate chamber 26 surrounds each stage combined with an exhaust pipe 22 (see also Figure 2), and connects the interior of the stage with the combined exhaust pipe 22 A bottom end portion 27 is connected. The intermediate chamber 26 has a triangular cross section. A substantially horizontal sedimentation surface 28 is disposed at the same height at the bottom of the stage and constitutes the bottom of the triangle. One side of the triangle is constituted by an outer side wall 30 of the intermediate chamber 26, wherein the intermediate chamber 26 has an outlet 32 connected to the bottom end portion 27 of the exhaust pipe 22. The outlet 32 is positioned above the precipitation surface 28. The other side of the triangle is superimposed with an opening 34 and extends substantially beyond the entire height of the stage, wherein the opening 34 communicates with the interior of the stage. The precipitation surface 28 and the opening 34 extend across the entire perimeter of the stage. Therefore, the precipitation surface 28 surrounding the stage is a peripheral annular surface. The multi-stage furnace according to the present invention has an improved exhaust pipe, and the exhaust pipe system is very suitable for the treatment which accompanies the release of a large amount of dust. In fact, 'because each stage incorporating an exhaust pipe 22, its entire perimeter is open to the intermediate chamber 26, so part of the dust system will naturally deposit in the sanctuary surrounding the stage or hearth Surface 28. It should also be noted that in order to leave the furnace via the exhaust pipe 22, the gas system is forced on its path to the outlet 32 and passes above the precipitation surface 28. This situation ensures that the gas passes through the precipitation surface 28. It can be seen from FIG. 1 that the surface 28 of the sunken hall is located below the exit 32. Since the exhaust pipe 22 is inclined, the dust deposited on the inner wall 35 of the exhaust pipe 22 will fall along the inner wall μ and fall ___10 The paper size applies the Chinese national standard (CNS ) A4 Regulations (210 X 297 mm) --- --------------- Install W-- {Please read the precautions on the back before filling this page) "Order _ _ Line 'Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs 442645 A7
經濟部智慧財產局貝工消費合作社印製 五、發明說明（） 在該沉澱表面28上。因此應可理解的是，該口出32係以 灰塵可到達該沉澱表面28的方式而設置。從而’可避免夜 該排氣管22內側之積聚灰塵；並且因此可永遠地確保該排 氣管22的最大截面以及廢氣的最大流率。 在習用的方法中，該排氣管是從爐子而水平地配置在 出口處，且該等排氣管的截面係大致地對應於該級的高度 相當而固定著。値得注意的是’如果欲傾斜這一支管子’ 則必需在該管子的底端部斜切削角’以使該管子與該級相 連結。明顯地，該管子之底端部的削角係會增加該底端部 的截面積，並因而不再與該兩級之間的空間一致。因此， 在習用的方法中，必需使用具有較小截面的管子，以便在 斜切削角之後，該管子的底端部可與兩級間的空間相等。 然而，使用具有較小截面的排氣管係會明顯地導致從該級 之內部所排除之氣體流率的降低。因此，依據本發明之多 級爐中所使用的中間腔室26,其係可連結一支具有直線切 穿（即未進行斜切削角）且具有與呈水平擺置之排氣管的 剖面相等之底端部的排氣管22。 爲了從該沉澱表面28淸除累積的灰塵，亦可具備有一 個淸理機構。環繞於該級之中間腔室26的結構係可使其具 有一個呈環狀的周邊沉澱表面，其係可促進該表面的淸理 。爲達此目的，該級（未圖示）之一個攪拌棒20係被延長 ，以突伸於該沉澱表面28的上方且將灰塵移到該級的內部 。從第1圖中亦可看出，該沉澱表面28隨後將可移置到〜 個稍微高於該爐床I4所在之高度的一個位置，而該沉澱表 本紙張尺度適用中國國家標準（CNS)A4规格（210 «297公釐） C請先Μιί背面t涑意事读存填窝本頁) -裝、Printed by the Shellfish Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs 5. Description of the invention () On the precipitation surface 28. It should therefore be understood that the spout 32 is provided in such a way that dust can reach the precipitation surface 28. Thereby, the accumulation of dust inside the exhaust pipe 22 can be avoided; and therefore, the maximum cross section of the exhaust pipe 22 and the maximum flow rate of exhaust gas can be ensured forever. In the conventional method, the exhaust pipes are horizontally arranged at the outlet from the furnace, and the cross sections of the exhaust pipes are substantially fixed corresponding to the height of the stage. It should be noted that 'if the pipe is to be inclined', it is necessary to obliquely cut the angle at the bottom end of the pipe 'to connect the pipe to the stage. Obviously, the chamfering of the bottom end portion of the tube will increase the cross-sectional area of the bottom end portion and thus no longer coincide with the space between the two stages. Therefore, in the conventional method, it is necessary to use a pipe having a smaller cross section so that the base end of the pipe can be equal to the space between the two stages after the oblique cutting angle. However, the use of an exhaust pipe system with a smaller cross-section significantly results in a reduction in the flow rate of gases that are excluded from the interior of the stage. Therefore, the intermediate chamber 26 used in the multi-stage furnace according to the present invention can be connected to a cross section with a straight cut (that is, no oblique cutting angle) and a cross section equal to that of the exhaust pipe arranged horizontally The bottom end of the exhaust pipe 22. In order to remove accumulated dust from the precipitation surface 28, a cleaning mechanism may be provided. The structure surrounding the intermediate chamber 26 of this stage can be provided with a peripheral precipitation surface having a ring shape, which can promote the surface treatment. To this end, a stirring rod 20 of the stage (not shown) is extended to protrude above the precipitation surface 28 and move dust to the inside of the stage. It can also be seen from the first figure that the sedimentation surface 28 can be subsequently displaced to a position slightly higher than the height of the hearth I4, and the paper size of the precipitation sheet is applicable to the Chinese National Standard (CNS) A4 specifications (210 «297 mm) C Please read the back page first, and read the deposit page on this page)-loading,
T 訂 .線' ϋ Α7 Β7 經濟部智慧財產局員工消#合作社印製 五、發明說明（ί。） 面28係環繞著該爐床14。 _ 其它値得一提的是，如第1圖所示之水平的沉澱表面 28亦可傾斜地朝向該級。這使得無論有無攪拌棒20皆可 有助於將灰塵送回至該級的內部。然而，較佳地係藉由該 攪拌棒20來掃除一水平之沉澱表面28上的灰塵，因爲這 種方式係允許可較佳地控制該被帶向該爐子內部之灰塵的 數量。 第2圖係顯示第1圖中具有可排除氣體之多級爐之一 區域10的立體圖。其中，每一個具有爐床14的級均連結 有三支排氣管22、22’和22”。每一次，該三支排氣管22 、22’和22”係等距地分佈環繞該級。該等排氣管22、22’ 和22”係單純地藉由提供的三個出口而與該級的內部連通 ，並且該三個出口係與每一個中間腔室26內的出口 32 ( 如第1圖中所示）相同。從第2圖中也可以看出，在每一 個中間腔室26的外側壁30內，均安裝有一個檢測埠36。 此係可容許該中間腔室26進行檢測和維修。明顯地，該等 檢測埠36在爐子運作期間係爲關閉的。亦需提出的是，該 等排氣管22、22’和22”係配置在該爐子周邊的相同位置但 卻在不同的級上，該等排氣管22、22’和22”係露出進入該 等主要之排氣管24、24’和24”中。 應可理解的是，亦可在另一多級爐的任一級之位置處 ，安裝一個具有一支或更多支排氣管的中間腔室，且並非 只限於在該還原區域之高度處。 最後，明顯地，可藉由在每一級製作三個中間腔室來 12 本紙張尺度適用中0困家ϋ (CNS)A4規格（210 X 297公爱Ί ~ (請先閱讀背面之注意事項再填寫本頁) -裝 訂· -ά. A7 ____B7_ 五、發明說明u ) 連結該三支排氣管22、22’和22”與該_級的內部。而且，這 些中間腔室並不環繞該級，而是每一個中間腔室皆以密緻 的方式設置在每一支排氣管之底端部的周圍。因而値得注 意的是，製作一個環繞該級且具有三個出口 32的單一中間 腔室26是比較簡單的。此外，該可容易淸理之周邊的環狀 沉澱表面28係僅可能存在於此種的中間腔室26之中。 , !"W-------，訂 --------線---W (請先閱讀背面之沒意事項再填寫本頁) 經濟部智慧財產局員工消f合作社印製 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公藿）Order line. Ϋ Α7 Β7 Printed by the staff of the Intellectual Property Bureau of the Ministry of Economic Affairs, printed by a cooperative. V. Description of invention (ί.) Surface 28 surrounds the hearth 14. _ Other things to mention is that the horizontal sedimentation surface 28 as shown in Fig. 1 can also be tilted towards this stage. This makes it possible to help return dust to the inside of the stage with or without the stirring rod 20. However, it is preferable to sweep the dust on a horizontal sedimentation surface 28 by the stirring rod 20, because this method allows the amount of dust to be brought into the furnace to be better controlled. Fig. 2 is a perspective view showing an area 10 having one of the multi-stage furnaces capable of excluding gas in Fig. 1. Among them, each stage having the hearth 14 is connected with three exhaust pipes 22, 22 ', and 22 ". Each time, the three exhaust pipes 22, 22', and 22" are equally spaced around the stage. The exhaust pipes 22, 22 ', and 22 "communicate with the interior of the stage simply by providing three outlets, and the three outlets are connected to the outlet 32 in each intermediate chamber 26 (such as (Shown in Figure 1) are the same. As can be seen from Figure 2, a detection port 36 is installed in the outer side wall 30 of each intermediate chamber 26. This system allows the intermediate chamber 26 to perform detection And maintenance. Obviously, the detection ports 36 are closed during the operation of the furnace. It should also be mentioned that the exhaust pipes 22, 22 'and 22 "are arranged at the same location around the furnace but At different stages, the exhaust pipes 22, 22 ', and 22 "are exposed into the main exhaust pipes 24, 24', and 24". It should be understood that an intermediate chamber having one or more exhaust pipes may be installed at the position of any stage of another multi-stage furnace, and it is not limited to the height of the reduction area. Finally, it is clear that by making three intermediate chambers at each level, 12 paper sizes are applicable for the 0-size home (CNS) A4 size (210 X 297 public love) ~ (Please read the precautions on the back before (Fill in this page)-Binding · -ά. A7 ____B7_ V. Description of the Invention u) Connect the three exhaust pipes 22, 22 'and 22 "to the inside of the _ stage. Moreover, these intermediate chambers do not surround the stage Instead, each intermediate chamber is arranged in a dense manner around the bottom end of each exhaust pipe. Therefore, it is important to note that a single middle is created that surrounds the stage and has three outlets 32 The chamber 26 is relatively simple. In addition, the ring-shaped precipitation surface 28 in the periphery which can be easily managed can only exist in such an intermediate chamber 26.,! &Quot; W ------- , Order -------- line --- W (Please read the unintentional matter on the back before filling out this page) Employees of the Intellectual Property Bureau of the Ministry of Economic Affairs, printed by the cooperative, this paper applies Chinese National Standards (CNS) A4 size (210 X 297 male)