505700 A7 _______B7_ 五、發明說明（丨） 此發明是關於製造液態生鐵或鋼前導材料的一種方法 ，進給物質由包含有氧化鐵的塊狀材料(假如適當的話還有 添加物)所形成的，在直接還原區域利用還原氣體使其還原 成海綿鐵，海綿鐵（選擇性的在最後還原之後）在熔落氣化 區域中熔化成液態生鐵，與供應碳載體和含氧氣體，以及 產生從熔落氣化區域抽出的含有CO和h2的產生器氣體， 而在除塵之後，當成是還原氣體導入直接還原區域，在那 裡轉換，而從直接還原區域中抽出當成是頂部氣體，並接 受氣體洗滌，並當成輸出氣體供應給消費者，而已除麈之 還原氣體的一分流則類似地接受氣體洗滌。 舉例來說，冶金殘餘物，諸如轉爐和電爐粉塵或淤泥 ，主要由氧化鐵組成，因爲它們的鋅和其他重金屬的成份 ，所以目前無法使用在冶金工廠中目前任一個鐵和鋼生產 組件之中。舉個例子，在鼓風爐方面將有不想要的富鋅情 形發生(稱爲”鋅危機(zinc distress)”）。在使用轉爐或電爐時 也只能將其控制在限制範圍內，因爲其將會在所要製造的 鋼產品上發生不利的影響。 AT 388 390 B主要討論的是在生鐵生產工廠作業中之 材料流動的除鋅問題。在這種情形，工廠由雙重組件所形 成，其由直接還原高爐和熔落氣化器所構成，熔落氣化器 所產生的還原氣體在兩階段中加以除塵，同一時間也除鋅 ，在第一階段低鋅粉塵沉澱，在第二階段富鋅粉麈沉澱。 這個方法不足以去實現能夠使用超過還原氣體除鋅能力之 含鋅的鋼廠粉塵。再者，對於兩階段廢氣除塵和除鋅所建 4 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） «t--------tr--------- (請先閱讀背面之注意事項再填寫本頁) 505700 A7 ________B7___ 五、發明說明（7 ) 議的方法，牽涉到高的設備項目經費和成本密集性。 因此本發明的目的是避免上面所提到的先前技藝之問 題，和提供一個寫在的方法，以使利用含鋅冶金粉塵 的鐵成份成爲可能，即使它們當中含有鋅，同時，維持所 生產之生鐵的品質。再者’這種方法是可以簡便地使用設 備來作業並有其成本效率。 根據本發明，可以完成這個目的在於： 將含鋅粉塵注入由從熔落氣化區域抽出的或要被抽出 的產生器氣體中，而含鋅進給物質/粉塵的氧化性部分被還 原，鋅被蒸發掉，以及被產生器氣體所裹入，並且在已除 塵之還原氣體的氣體洗滌過程中，裹入的鋅從還原氣體沉 澱爲含鋅淤泥。 在已除麈之氣體的氣體洗滌期間所沉澱的淤泥有高的 鋅含量，並且有或沒有進一步昇級（upgrading)就能送出做 進一步的使用。 在這篇文章中，所使用的含鋅粉塵特別是發生在生鐵 和/或鋼生產過程和/或後續過程期間之含鋅的冶金粉塵。 然而，根據發明的方法並不局限在使用這些含鋅冶金粉塵 〇 在本篇文章中所提到的“含鋅”一詞，總是要理解爲含 氧化鋅(ZnO)及含金屬鋅(Zn)兩者。在這裡，最初的含鋅冶 金粉塵通常有ZnO及Zn兩者，在注入產生器氣體之後 Zn〇部份則立刻被還原成zn，以及在最初也是以Zn的形 式包含在沉澱的淤泥中。然而，對於大多數而言，在稍後 5 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） ·裝--------訂--------- (請先閱讀背面之注意事項再填寫本頁) 505700 A7 ______B7 __ —______ 五、發明說明（^ ) 淤泥進一步處理期間將由水和大氣中氧的作用而再次氧化 成Zn〇。 相對於AT 388 390 B所描述的問題，根據它所言，假 如鋅或含鋅粉塵是在熔落氣化器及除塵裝置間循環是不利 的，則已證明：不只是去進f 了兩段除塵，再者，也將含多辛 冶金粉塵注入從溶落氣化區域抽出的產生器氣體，和/或將 含鋅聚結物導入直接還原區域和/或熔落氣化區域，係極爲 有利的。 事實上，一部份的鋅真的大槪已經在熔落氣化區域和 除塵過程之間減少到一定程度。然而，由於在再循環鋅和 被速原氣體裹入的鉢成份間建AA 了平衡，所以在溶落氣化 區域不再發生鋅的累積。在所有情形下，由於熔落氣化區 域所盛行的溫度使鋅在其中以氣體的方式呈現，且不和液 態生鐵有接觸，所以鋅雜質也不會有損於所生產之生鐵的 品質。 根據發明的方法中一個有利的具體實施例，在已除塵 之還原氣體的氣體洗滌過程中沉澱之含鋅淤泥，至少有一 分流轉送到增稠器且在那裡至少部份地予以除水，也就是 說除水達到殘留水氣含量。 減少沉澱淤泥之水份，對於改善淤泥的處理性和減少 進一步處理的複雜成本效率問題有明顯貢獻。 根據另一有利的具體實施例，在已除塵之還原氣體的 氣體洗滌期間所沉澱之含鋅的淤泥和/或部份除水之含鋅淤 泥加以聚結，特別是製成顆粒狀和磚塊形式，假如適於和 6 广請先閱讀背面之注意事項再填寫本頁) 裝 — 訂---------_ 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） 505700 A7 ___JB7_ _____ 五、發明說明（+ ) 其他發生在生鐵和/或鋼製造過程的粉塵和/或派泥混合在 一起。 由於沉澱之淤泥製作成塊狀，所形成之聚結物在後續 過程中可更有效地使用，例如含鋅比例的調整。 聚結物所應具有的特性，特別是它們的機械及熱穩定 性，在聚結方法的選擇上是十分關鍵的。除了淤泥的造粒 和製磚形式外，淤泥的九粒化作業也是一個可能的步驟。 根據本發明所形成的聚結物可進一步利用’最好是導 入直接還原區域和/或熔落氣化區域。 假設導入產生器氣體之鋅粉塵是一常流’則額外導入 含鋅聚結物的結果是：在循環鋅和被還原氣體裹入的鋅之 間的平衡被再調整。因此，在氣體洗滌期間沉澱的淤泥是 富含鋅，或者假如固定比例的淤泥是從包含氣體洗滌器/增 稠器/聚結器/(直接還原區域V熔落氣化區域的線路中出來 ’則可設定固定局鉢濃度的 '丨於泥。 由於本發明所沉澱的淤泥有高濃度的鋅，它也非常適 合使用在商業用途上，如在鋅廠。 因此根據發明的方法，其有利的特徵在於：假如在適 合的話在之前部份除水和/或烘乾以後’和假如適合的話在 之前聚結以後，在氣體洗滌期間所沉澱之含鋅淤泥的一分 流送去做鋅的再生。 在根據本發明的方法中，產生器氣體必須冷卻到適合 直接還原區域的溫度。這是藉由壓縮已洗滌之還原氣體的 一分流以及把它當成冷卻氣體輸送到產生器氣體，而已排 7 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） -----------·1--------.1T·--------Φ (請先閱讀背面之注意事項再填寫本頁) 505700 A7 __B7____ 五、發明說明（< ) 外地進行。 根據發明方法的具體實施例的另一優點，藉著注入產 生器氣體中而導入含鋅粉塵，因此，其特徵在於：至少部 份，最好是至少50%的產生器氣體所要的冷卻，是由粉塵 注入產生器氣體中所引起的。 將含鋅冶金粉塵注入產生器氣體產生後者的冷卻效果 ，一方面，是基於粉塵的加熱，另一方面，是基於Zn〇還 原成Zn。因此，冷卻氣體的分流可以藉注入冶金粉塵來大 大地降低。 冷卻氣體分流的減少也造成在已除塵還原氣體之氣體 洗滌期間的淤泥沉澱量的減少，也伴隨著增加了淤泥中鋅 的濃度。 這個帶來一個驚訝的效果：冶金粉塵導入來自熔落氣 化區域之產生器氣體，導致了全部淤泥輸送量的減少。 爲了要更加強這個效果，也爲了於根據本發明的方法 中利用其他的冶金粉塵’封於要注入不增加辞含量的粉塵 ，和含鋅粉塵一起注入產生器氣體中，已證明是有益的。 這不只導致產生器氣體的廣泛的冷卻，也導致有利地 利用其他冶金粉塵。 根據此發明的方法之另一有利的具體實施例的結果， 在所有情況下，直接還原區域的溫度是保持在低於液態鋅 之沸騰溫度，最好是低於此溫度50°C。 這個確保由於氣態鋅和頂部氣體從直接還原區域一起 被抽出時的任何蒸發損失將是最小的。 8 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） II---------·裝--------訂！^-----Φ (請先閱讀背面之注意事項再填寫本頁) 505700 A7 _________________ 五、發明說明（b ) 下面請參考示範在圖1中的示範性具體實施例，將詳 細解釋根據此發明的方法。 包含氧化鋅及氧化鐵之聚結物41，和其他由含有氧化 鐵和添加物5的塊狀材料4所形成的進給物質，從上方利 用進給設備3送進還原高爐1或其直接還原區域2。還原 氣II經由還原氣體線6傳送到還原高爐丨，所述的還原氣 體從底部往上逆流經過進給物質，同一時間，還原包含氧 化鐵和氧化鋅的材料4成爲海綿鐵或金屬鋅。在直接還原 區域2所建立的情況下，金屬鋅是以液體形式在海綿鐵中 ’由含鋅及氧化鐵的冶金殘留物所形成，而存在於海綿鐵 基材或在它的表面上，沒有蒸發。消耗掉或部分已反應還 原氣體從還原高爐1經由頂部氣體線7抽出，並在頂部氣 體洗滌器8中接受頂部氣體洗滌9。現在被當成是輸出氣 體之已經過洗滌的頂部氣體，經由輸出氣體線1〇來給消費 者使用。 從直接還原區域2來的反應產物，即海綿鐵中包含有 從包含氧化鐵及鋅的聚結物所形成的海綿鐵，和燃燒後的 添加物’從還原局爐1利用排出設備11排出，並經由下降 管12輸送到熔落氣化器13。再者，固態的含碳材料15， 選擇性以及含鋅聚結物41所組成的進給物質，從儲倉14 經由傳送設備16送至熔落氣化區域13。在熔落氣化器13 的熔落氣化區域17，含碳的材料15氣化，同時經由多條 氧氣線18的注入來供應含氧氣體，同時，假如適當的話， 海綿鐵首先被精煉還原和熔化。從包含鋅及氧化鐵的?台金 9 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公' ' -- -----------•裝--------^訂-L-------· (請先閱讀背面之注意事項再填寫本頁) 505700 A7 ___— B7 1 ' ； ---------- 五、發明說明（]) 殘留物所形成之海線鐵中的金屬鋅，在溶落氣化區域所盛 行之情況下轉換爲氣相。 從熔落氣化區域π底下所收集的液態生鐵19和液態 淤泥20 ’經由流出口 21流放。 在溶落氣化區域17的含碳材料的氣化期間所形成的產 生器氣體，以及包含在產生器氣體中的辞蒸氣，從溶落氣 化器13經由產生器氣體線22抽出，並於熱氣旋 接受除麈24。同一時間所沉澱的粉_將再經由粉塵再循環 線25導入熔落氣化器13。 在熱氣旋風器23中除塵的產生器氣體，現在則被當成 是速原氣體’經由還原氣體線6導入還原高爐1中。還原 氣體線6有一分支管是過剩氣體線26，利用這個分支管， 還原氣體的一分流送入過剩氣體洗滌器27中。過剩氣體洗 滌器27的下游，包含一壓縮機28之冷卻氣體線29從過剩 氣體線26分出，並開向熱氣旋風器23上游的產生器氣體 線22，其結果是爲了溫度調節的目的，冷卻氣體送入產生 器氣體中。 產生器氣體線22指派有一設備30，其已知爲一細礦 砂的注入系統，利用此可以將含鋅粉塵31注入產生器氣體 中。 再者，從熔落氣化器13導出之產生器氣體線22之那 一點緊鄰的附近裡，將含鋅粉塵吹進熔落氣化器13是可能 在所有的情況下，導入製程中的鋅載體中的Zn〇分量 10 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公爱） (請先閱讀背面之注意事項再填寫本頁) --------訂---------. 505700 A7 ____B7__ 五、發明說明（g ) 和氧化鐵分量被還原成各自的金屬，雖然鋅被轉換成氣相 而被產生器氣體一起裹入其他粉塵顆粒。藉著直接來自熱 氣旋風器23上游的冷卻氣體將溫度調節到大約800°C到 850°C。在此期間，和在熱氣旋風器23中，大部份的鋅(大 約80%)濃縮，和粉塵一起在熱氣旋風器23中沉澱，並經 由粉塵再循環線25再次導入熔落氣化器13。 還原氣體的最大部份(不管和被裹入鋅一起導入之鋅的 形態)注入還原局爐1中’然而’在_裡鲜不會再產生亂流 ，且由於在那裡所盛行的溫度，鋅落於海綿鐵，並和後者 一起再次導入熔落氣化器13。 還原氣體的少部份在過剩氣體洗滌器27中洗滌，沉澱 的含鋅淤泥經由淤泥線32傳送到增稠器33。由過剩氣體 洗滌器27發出的派泥線32有一開口通入它，在此還有另 一派泥線34 ’利用此在頂部氣體洗條器8沉激的派泥也類 似地輸入增稠器33中。然而，假如適當的話，分別處理含 鋅及不含鋅的派泥，並把起源於頂氣洗滌的淤泥導入到例 如分離的增稠器，可能是想要的。 在增稠器33中，淤泥被部份除水到殘留溼氣含量，然 後再利用。這個再利用就可能像商業使用35或鋅再生36 〇 有利的是，除水/乾燥到可接受的殘餘溼氣含量的淤泥 ，能夠使用一合適的黏結劑來製磚。達到淤泥中富鋅成份 所需求的程度，這些磚塊經由直接還原區域和殘餘進給物 質再送至製程中，或直接送入熔落氣化區域。這些磚塊的 11 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） "" ---I----^---------^一^ (請先閱讀背面之注意事項再填寫本頁) 505700 A7 __B7__ 五、發明說明（1 ) 非再循環部份直接或間接地進行再次利用。 假如部份除水之含鋅淤泥送去聚結39，如果適當的話 還有未除水之含辞淤泥和/或進一步的冶金粉塵和/或洗滌 器之粉塵一起混入’然後只爲了商業使用和/或鋅再生，和 /或經由一輸送線40到儲存含碳材料15之儲倉14，並終於 再傳送至熔落氣化器13 ’則也是特別有利的。 藉由此一做法，完成了沉澱淤泥中之鋅的昇級，因此 傳送做爲商業使用35和/或鋅再生36>的聚結物和/或淤泥有 一較高的鋅含量。 奮際例子： 生產每噸生鐵，200 kg具有下列成份的粉塵注入產生 器氣體線22。 16% Zn〇， 32% Fe2〇3， 2% C， 其餘：飛灰和熔渣成份 在熱氣旋風器23中所沉澱之鋅對之後也裹入之鋅的比 率大約爲4 : 1。 繼續被裹入的鋅中，大約20%在過剩氣體洗滌器27中 沉澱爲含鋅的淤泥。 t 假如淤泥量對生鐵量爲75 kg/t，在淤泥中鋅的濃度相 對於乾的狀況爲32%。 從這淤泥所產生的粒狀物有大約30%的鋅濃度。這些 粒狀物的一半再經由煤碳進給(儲倉14、傳送設備16 )引入 12 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） ·裝--------訂---------*^11^ (請先閱讀背面之注意事項再填寫本頁) 505700 A7 五、發明說明（) 熔落氣化器13，其他的過程則如前所述。 高達60%鋅濃度最後建立在所繼續要生產的粒狀物內 〇 此發明並不局限在圖1中所舉的示範性具體實施例505700 A7 _______B7_ 5. Description of the invention (丨) This invention is a method for manufacturing liquid pig iron or steel lead material. The feed material is formed by a bulk material containing iron oxide (and additives if appropriate). In the direct reduction area, the reducing gas is used to reduce it to sponge iron. The sponge iron (optionally after the final reduction) is melted into liquid pig iron in the slag gasification area, and the carbon carrier and the oxygen-containing gas are supplied. The generator gas containing CO and h2 extracted from the down gasification area is introduced into the direct reduction area as a reducing gas after dust removal, and converted there, and the top gas is extracted from the direct reduction area and subjected to gas washing. It is supplied to the consumer as the output gas, and a partial stream of the reduced reducing gas is similarly subjected to gas washing. For example, metallurgical residues, such as converter and electric furnace dust or sludge, are mainly composed of iron oxides, and because of their zinc and other heavy metals, they cannot be used in any of the current iron and steel production components in metallurgical plants. . For example, an unwanted zinc-rich condition will occur in the blast furnace (called a “zinc distress”). When using converters or electric furnaces, it can only be controlled to a limited extent, because it will adversely affect the steel products to be manufactured. AT 388 390 B mainly discusses the removal of zinc from material flow in pig iron production plant operations. In this case, the plant is formed by dual components, which are composed of a direct reduction blast furnace and a slag gasifier. The reducing gas produced by the slag gasifier is dusted in two stages, and zinc is also removed at the same time. In the first stage, low-zinc dust is precipitated, and in the second stage, zinc-rich dust is precipitated. This method is not sufficient to achieve zinc-containing steel plant dust that can use more than the reducing gas to remove zinc. In addition, for the two-stage exhaust gas dust removal and zinc removal, the 4 paper sizes are applicable to the Chinese National Standard (CNS) A4 specification (210 X 297 mm) «t -------- tr ------ --- (Please read the precautions on the back before filling this page) 505700 A7 ________B7___ V. Description of the Invention (7) The proposed method involves high equipment project costs and cost intensiveness. It is therefore an object of the present invention to avoid the problems of the prior art mentioned above and to provide a method to make it possible to use the iron components of zinc-containing metallurgical dusts, even if they contain zinc, while maintaining the produced The quality of pig iron. Furthermore, this method allows the equipment to be operated simply and cost-effectively. According to the invention, this object can be achieved in that: zinc-containing dust is injected into the generator gas withdrawn or to be extracted from the slag gasification area, and the oxidizing part of the zinc-containing feed material / dust is reduced, zinc It is vaporized, and it is wrapped in the generator gas, and in the gas washing process of the dust-removing reducing gas, the wrapped zinc precipitates from the reducing gas into zinc-containing sludge. The sludge precipitated during the gas scrubbing of the purge gas has a high zinc content and can be sent for further use with or without further upgrading. In this article, zinc-containing dusts are used, in particular zinc-containing metallurgical dusts that occur during pig iron and / or steel production and / or subsequent processes. However, the method according to the invention is not limited to the use of these zinc-containing metallurgical dusts. The term "zinc-containing" mentioned in this article is always understood as containing zinc oxide (ZnO) and metal-containing zinc (Zn ) Both. Here, the original zinc-containing metallurgical dust usually contains both ZnO and Zn. After the generator gas is injected, the Zn0 part is immediately reduced to zn, and is initially contained in the precipitated sludge in the form of Zn. However, for the most part, the 5 paper sizes later applied the Chinese National Standard (CNS) A4 specification (210 X 297 mm). -(Please read the precautions on the back before filling this page) 505700 A7 ______B7 __ —______ V. Description of the Invention (^) During the further treatment of the sludge, it will be oxidized to Zn by the action of water and atmospheric oxygen. Relative to the problem described in AT 388 390 B, according to it, if zinc or zinc-containing dust is unfavorable to circulate between the slag gasifier and the dedusting device, it has been proven that it is not just going into f two stages Dedusting, and furthermore, the injection of polyoxin-containing metallurgical dust into the generator gas withdrawn from the slag gasification zone, and / or the introduction of zinc-containing agglomerates into the direct reduction zone and / or the slag gasification zone are extremely advantageous. of. In fact, a part of the zinc really has been reduced to a certain extent between the slag gasification area and the dust removal process. However, due to the AA balance established between the recycled zinc and the components of the bowl wrapped by the virgin gas, the accumulation of zinc no longer occurs in the slag gasification zone. In all cases, due to the prevailing temperature in the slag gasification zone, zinc appears in it as a gas, and does not come into contact with liquid pig iron, so zinc impurities will not impair the quality of the pig iron produced. According to an advantageous embodiment of the method of the invention, at least one partial stream of the zinc-containing sludge precipitated during the gas washing of the dedusted reducing gas is transferred to the thickener and at least partially dewatered there, that is, It is said that water removal reaches the residual moisture content. Reducing the water content of the settled sludge has significantly contributed to improving sludge handling and reducing complex cost-efficiency issues for further processing. According to another advantageous embodiment, the zinc-containing sludge precipitated during the gas washing of the dust-reduced reducing gas and / or the partially dewatered zinc-containing sludge are agglomerated, in particular made into granules and bricks Format, if applicable, please read the notes on the back before filling in this page) Binding — Binding ---------_ This paper size is applicable to China National Standard (CNS) A4 (210 X 297) (Centi) 505700 A7 ___JB7_ _____ V. Description of the invention (+) Other dust and / or mud sent from pig iron and / or steel manufacturing process are mixed together. Because the settled sludge is made into agglomerates, the agglomerates formed can be used more effectively in subsequent processes, such as adjusting the zinc content. The characteristics of agglomerates, especially their mechanical and thermal stability, are critical in the choice of agglomeration methods. In addition to granulation and brick making of sludge, the nine-granulation operation of sludge is also a possible step. The agglomerates formed according to the present invention can be further utilized ', preferably into a direct reduction zone and / or a slag gasification zone. Assuming that the zinc dust introduced into the generator gas is a constant flow ', the result of the additional introduction of zinc-containing agglomerates is that the balance between the circulating zinc and the zinc enclosed by the reducing gas is readjusted. Therefore, the sludge precipitated during the gas washing is zinc-rich, or if a fixed proportion of the sludge comes out of the line containing the gas scrubber / thickener / coalescer / (direct reduction zone V meltdown gasification zone ' It is possible to set a fixed pot concentration in the mud. Since the sludge precipitated by the present invention has a high concentration of zinc, it is also very suitable for commercial use, such as in a zinc plant. Therefore, according to the method of the invention, it is advantageous It is characterized in that, if appropriate, it is partially dewatered and / or dried before and after it has been previously coalesced, if appropriate, and a partial stream of zinc-containing sludge precipitated during gas washing is sent for zinc regeneration. In the method according to the invention, the generator gas must be cooled to a temperature suitable for the direct reduction zone. This is achieved by compressing a partial stream of the washed reducing gas and delivering it as a cooling gas to the generator gas. Paper size applies to China National Standard (CNS) A4 (210 X 297 mm) ----------- · 1 --------. 1T · -------- Φ (Please read the notes on the back before filling Page) 505700 A7 __B7____ 5. Description of the invention (<) carried out in the field. According to another advantage of the specific embodiment of the inventive method, zinc-containing dust is introduced by injecting into the generator gas, so it is characterized by: at least partly The cooling of at least 50% of the generator gas is preferably caused by the injection of dust into the generator gas. The injection of zinc-containing metallurgical dust into the generator gas produces the latter cooling effect, on the one hand, it is based on the heating of the dust On the other hand, it is based on the reduction of Zn0 to Zn. Therefore, the shunting of the cooling gas can be greatly reduced by injecting metallurgical dust. The reduction of the shunting of the cooling gas also causes the amount of sludge precipitation during the gas washing of the dedusting reducing gas. The reduction also accompanied the increase in the zinc concentration in the sludge. This brought a surprising effect: the introduction of metallurgical dust from the generator gas from the slag gasification zone led to a reduction in the overall sludge transport volume. To further strengthen this effect Also, in order to use other metallurgical dust in the method according to the present invention, it is sealed without being added. The amount of dust injected into the generator gas with zinc-containing dust has proven to be beneficial. This not only leads to extensive cooling of the generator gas, but also to the advantageous use of other metallurgical dusts. Another advantage of the method according to the invention As a result of the specific embodiment, in all cases, the temperature of the direct reduction zone is kept below the boiling temperature of liquid zinc, preferably 50 ° C below this temperature. This ensures that due to the direct reduction of gaseous zinc and top gas from Any evaporation loss when the area is drawn together will be minimal. 8 This paper size applies to China National Standard (CNS) A4 (210 X 297 mm) II --------- · Installation ---- ---- Order! ^ ----- Φ (Please read the notes on the back before filling out this page) 505700 A7 _________________ V. Description of the Invention (b) Please refer to the exemplary embodiment shown in Figure 1 below The method according to the invention will be explained in detail. Condensate 41 containing zinc oxide and iron oxide, and other feed materials formed from a bulk material 4 containing iron oxide and additives 5 are fed into the reduction blast furnace 1 or directly reduced by a feeding device 3 from above Area 2. The reducing gas II is transferred to the reducing blast furnace via a reducing gas line 6, and the reducing gas passes through the feed material from the bottom upwards, and at the same time, the material 4 containing iron oxide and zinc oxide is reduced to sponge iron or metallic zinc. In the case of the establishment of the direct reduction zone 2, the metallic zinc is formed in the sponge iron in liquid form by the metallurgical residues containing zinc and iron oxide, and is present on the sponge iron substrate or on its surface, without evaporation. The consumed or partially reacted reducing gas is withdrawn from the reduction blast furnace 1 via a top gas line 7, and is subjected to a top gas scrubber 9 in a top gas scrubber 8. It is now regarded as the top gas that has been washed out of the output gas, and is used by consumers via the output gas line 10. The reaction product from the direct reduction zone 2, that is, the sponge iron contains sponge iron formed from agglomerates containing iron oxide and zinc, and the burned additives are discharged from the reduction furnace 1 by a discharge device 11, It is conveyed to the meltdown gasifier 13 via the downcomer 12. Furthermore, the solid carbonaceous material 15, the selective material and the zinc-containing agglomerate 41 are fed from the storage bin 14 to the slag gasification area 13 via the transfer device 16. In the slag gasification area 17 of the slag gasifier 13, the carbonaceous material 15 is gasified, and oxygen-containing gas is supplied through the injection of multiple oxygen lines 18, and, if appropriate, sponge iron is first refined and reduced And melting. From Taiwan Gold 9 including zinc and iron oxide This paper size is applicable to the Chinese National Standard (CNS) A4 specification (210 X 297 male ''------------ • equipment ----- --- ^ Order-L ------- · (Please read the precautions on the back before filling this page) 505700 A7 ___— B7 1 '; ---------- V. Description of the invention (]) The metallic zinc in the sea-line iron formed by the residue is converted to the gas phase under the prevalence of the meltdown gasification zone. The liquid pig iron 19 and liquid sludge 20 collected from the meltdown gasification zone π 'Exhaust via outflow port 21. The generator gas formed during the gasification of the carbonaceous material in the slag gasification zone 17 and the vapor contained in the generator gas pass from the slag gasifier 13 through the generator The gas line 22 is drawn out, and it is subjected to deaeration 24 in the hot cyclone. The powder deposited at the same time will be introduced into the meltdown gasifier 13 through the dust recycling line 25. The generator gas for dust removal in the hot cyclone 23, now It is regarded as a scorogen gas' and is introduced into the reduction blast furnace 1 through a reduction gas line 6. The reduction gas line 6 has a branch pipe which is an excess gas line 26, and uses this branch A partial stream of reducing gas is sent to the excess gas scrubber 27. Downstream of the excess gas scrubber 27, a cooling gas line 29 containing a compressor 28 is branched from the excess gas line 26 and opens to the upstream of the hot gas cyclone 23 The generator gas line 22 has the result that the cooling gas is sent into the generator gas for the purpose of temperature adjustment. The generator gas line 22 is assigned a device 30, which is known as a fine ore injection system, and can be used to contain Zinc dust 31 is injected into the generator gas. Furthermore, it is possible to blow zinc-containing dust into the slag gasifier 13 in the immediate vicinity of the point of the generator gas line 22 leading from the slag gasifier 13 In the case of introduction, the amount of Zn in the zinc carrier introduced in the process is 10 This paper size applies to the Chinese National Standard (CNS) A4 specification (210 X 297 public love) (Please read the precautions on the back before filling this page)- ------ Order ---------. 505700 A7 ____B7__ 5. Description of the invention (g) and iron oxide components are reduced to their respective metals, although zinc is converted into the gas phase and is generated by the generator gas Wrap other dust particles together. Borrow The cooling gas directly from the upstream of the hot gas cyclone 23 adjusts the temperature to about 800 ° C to 850 ° C. During this period, and in the hot gas cyclone 23, most of the zinc (about 80%) is concentrated, together with the dust It precipitates in the hot gas cyclone 23 and is reintroduced into the smelting gasifier 13 via the dust recirculation line 25. The largest part of the reducing gas (regardless of the form of zinc introduced together with the zinc being wrapped) is injected into the reduction furnace 1 However, turbulence will no longer occur in Lixian, and due to the temperature prevailing there, zinc will fall on the sponge iron and be reintroduced into the melter gasifier 13 together with the latter. A small portion of the reducing gas is washed in an excess gas scrubber 27, and the precipitated zinc-containing sludge is transferred to a thickener 33 via a sludge line 32. The mud line 32 from the excess gas scrubber 27 has an opening through it, and here there is another mud line 34 'Using this, the thick mud mud from the top gas washer 8 is similarly fed into the thickener 33 in. However, if appropriate, it may be desirable to treat zinc-containing and zinc-free pie slurries separately and to introduce sludge originating from head gas washing to, for example, a separate thickener. In the thickener 33, the sludge is partially dewatered to a residual moisture content and then reused. This reuse may be like commercial use 35 or zinc regeneration 36. Advantageously, the sludge is dewatered / dried to an acceptable residual moisture content and a suitable binder can be used to make the bricks. To the extent required for the zinc-rich content of the sludge, these bricks are sent to the process via the direct reduction zone and the residual feed material, or directly into the slag gasification zone. The 11 paper sizes of these bricks are in accordance with China National Standard (CNS) A4 (210 X 297 mm) " " --- I ---- ^ --------- ^ 一 ^ ( (Please read the precautions on the back before filling this page) 505700 A7 __B7__ 5. Description of the invention (1) The non-recycling part is directly or indirectly reused. If part of the water-containing zinc-containing sludge is sent to coalescing 39, if appropriate, water-containing water-containing sludge and / or further metallurgical dust and / or scrubber dust are mixed together, then only for commercial use and It is also particularly advantageous to regenerate zinc, and / or via a transport line 40 to a storage bin 14 storing carbonaceous material 15 and finally to the meltdown gasifier 13 '. In this way, the upgrading of zinc in the settled sludge is completed, so the agglomerates and / or sludge delivered as a commercial use 35 and / or zinc regeneration 36> have a higher zinc content. Fenji example: 200 kg of dust with the following composition is injected into the generator gas line 22 per ton of pig iron. 16% Zn〇, 32% Fe203, 2% C, the rest: fly ash and slag components The ratio of the zinc precipitated in the hot cyclone 23 to the zinc that is also wrapped is about 4: 1. About 20% of the zinc that has been continuously wrapped is precipitated as zinc-containing sludge in the excess gas scrubber 27. t If the amount of sludge versus pig iron is 75 kg / t, the zinc concentration in the sludge is 32% relative to the dry condition. The pellets produced from this sludge have a zinc concentration of about 30%. Half of these granules are then introduced into the coal through the carbon feed (storage bin 14, conveying equipment 16). 12 The paper size is applicable to China National Standard (CNS) A4 (210 X 297 mm). --Order --------- * ^ 11 ^ (Please read the precautions on the back before filling this page) 505700 A7 V. Description of the invention () Melting gasifier 13, other processes are the same as before As described. Up to 60% zinc concentration is finally established in the granules to be produced. This invention is not limited to the exemplary embodiment illustrated in FIG. 1
’而也包括熟與此技藝者所知道的和可以用來實施本發明 的所有方式。 X 圖式簡述 圖1是根據本發明之方法的示範，|生具體實施例。 圖式元件符號說明 裝--------訂--------- (請先閱讀背面之注意事項再填寫本頁) 1 還原高爐 2 直接還原區域 3 進給設備 4 塊狀材料 5 添加物 6 還原氣體線 7 頂部氣體線 8 頂部氣體洗滌g 9 頂部氣體洗滌 10 輸出氣體線 11 排出設備 12 下降管 13 熔落氣化器 14 儲倉 15 固態的含碳材半斗 本紙張尺度適（CNS)A4規格（210 x 297公釐y 傳送設備 熔落氣化區域 氧氣線 液態生鐵 淤泥 流出口 產生器氣體線 熱氣旋風器 除塵 粉塵再循環線 過剩氣體線 過剩氣體洗滌器 壓縮機 冷卻氣體線 設備 含鋅粉塵 淤泥線 增稠器 淤泥線 商業使用 鋅再生 冶金粉塵 洗滌器之粉塵 聚結 «t--------IT--------- (請先閱讀背面之注意事項再填寫本頁) 505700 A7 B7 五、發明說明（U ) 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） 505700 A7 _B7 五、發明說明（\>) 40 輸送線 41 聚結物 15 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） -----------«t--------tr--------- (請先閱讀背面之注意事項再填寫本頁)It also includes all means known to those skilled in the art and which can be used to implement the invention. Brief Description of the Schematic Figure 1 is an example of a method according to the present invention. Schematic component symbol description -------- Order --------- (Please read the precautions on the back before filling this page) 1 Reduction blast furnace 2 Direct reduction area 3 Feed equipment 4 pieces Shaped material 5 Additive 6 Reduction gas line 7 Top gas line 8 Top gas wash g 9 Top gas wash 10 Output gas line 11 Discharge equipment 12 Downcomer 13 Melt gasifier 14 Storage bin 15 Solid carbonaceous material half bucket Paper size suitable (CNS) A4 size (210 x 297 mm y) Conveying equipment smelting gasification area oxygen line liquid pig iron sludge outlet generator gas line hot cyclone dust removal dust recycling line excess gas line excess gas scrubber compressor Cooling gas line equipment Zinc-containing dust silt line Thickener thickener Sludge line Commercial use of zinc regeneration metallurgy dust scrubber dust coalescence «t -------- IT --------- (Please read first Note on the back, please fill out this page) 505700 A7 B7 V. Description of the invention (U) 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 (CNS) A4 size (210 X 297 mm) 50 5700 A7 _B7 V. Description of the invention (\ >) 40 Conveying line 41 Agglomerates 15 This paper size applies to China National Standard (CNS) A4 (210 X 297 mm) ----------- «T -------- tr --------- (Please read the notes on the back before filling this page)