486520 經濟部中央標準局員工消費合作社印製 A7 __B7 _ 五、發明説明（，） 本發明僳有關於一種煉綱時於電弧爐内注射氧之方法 ，更特定而言，本發明傺有關於一種煉鋼時於電弧爐内 注射氣的方法，而該方法傜在切割、脱碩、和金屬熔融 脫磺期間生成一氧化磺之後-燃燒期間使用。 煉銅之電弧爐（EAF)在載料金屬的熔融期間，銷鐵内 含的磺會與爐内的注射氣（為能脱磺以及切割所含的固 體成份）反應，進而産生一氧化碩（C0),如下式方程式 所示：C + l/ 2 〇2 4C0,此稱為脱磺反應。在産生一氧 化磺後，一氣化磺與爐内的注射氧或與空氣中所存在的 氣氣（經由出渣口和排氣孔進入爐内）反應，産生二氣化 磺（C〇2 ),如下式方程式所示：C0 + 1/ 2 〇2今C〇2 ,此 稱為後-燃燒反應。 脫磺和後-燃燒反應均為放熱反應。但是，爐内産生 一氯化磺與爐内注射氣氣或空氣中氧氣反應，所得的熱 量（化學能量）轉移至固體載料的部分相當少，這是因為 後-燃燒反應在爐上方發生的關傺，即在熔渣管路和排 氣管間包括的區域，而且氣體内含的能量也很快在爐上 方消散，再經由氣體排出条統排出，而不穿入令人満意 之固體載料内。此外，産生熱量（化學能量）的部分，因 加熱空氣中所含氮氣（該空氣係經由出渣口和排氣孔進 入爐内）而損失。另一方面，後-燃燒反應所得的熱量 (化學能量）轉移至金屬熔融體内相當少，因為後-燃燒 反應發生在熔渣管線的上方，此猶如熱絶緣，減少了熱 最轉移（化學能量）至金屬熔融體内的機會。 -3 - (請先閱讀背面之注意事項再填寫本頁) -裝- 訂 線 本紙張尺度適用中國國家標準（CNS ) A4規格（210X297公釐） 經濟部中央標準局員工消費合作社印製 486520 A7 B7 五、發明説明（> ) 面對冶金工業的成長競爭，以及環保法律的要求，業 界都極力發展電弧爐製造銅鐵的技術，期能達到能源最 省、産率最大、環境污染最少、並改善輸入能源、及合 理蓮用爐内一氧化磺所産生的化學能量。 為了妥善運用爐内一氧化磺反應衍生出的化學能量， 建議使用額外的氧氣，該方法稱為後-燃燒，此即在固 體載料熔融步驟期間，在熔渣管線區域上方，裝置一或 多値注射氯噴嘴。該方法顯示少有熱量（化學能量）會轉 移至金鼷熔融體内，這是因為注射噴嘴所在的位置遠離 熔渣管線上方，而且隨著固體載料熔渣遞増，高度遞減 ,並逐漸遠離熱區至某處，該處使反應所得熱量（化學 能量）轉移至固體載料，不再達令人滿意的程度。闊於 溶液也少有熱量（化學能量）轉移至金屬熔融體内，因為 位置距離熔渣管線上方太遠，又因熔渣本身作用猶如絶 緣障壁，故無法使熱量轉移（化學能量）至金屬熔融體内。 因此，本發明目的在於提供一種煉銷時於電弧爐内注 射氣之方法，其使得一氣化磺後-燃燒反應所衍生的化學 能量，以有效的方式轉移至金屬載料和熔融體上。 本發明另一値目的在於提供一種煉鋼時於電弧爐内注 射氣的方法，該方法提供一種均質的金屬熔融體及其該 金屬熔融體的有效脫碳。 第1圖為電弧爐内的側面圖，其描述了噴嘴的位置。 第2圓為電弧爐内的平面圖，其描述了噴嘴的排列方 式。 一 4 - 本紙張尺度適用中國國家標準（CNS ) A4規格（210X 297公釐） (請先閲讀背面之注意事項再填寫本頁) 裝· 、11 486520 經濟部中央標準局員工消費合作社印製 A7 B7 五、發明説明（々） 本發明上述以及其他目的，偽透過煉銷用電弧爐之連 缠注入氣氣的裝置而完成，該爐偽在切割、脱磺、和金 屬熔融脱磺期間生成一氣化磺之後-燃燒期間使用，該 裝置使用一値或多個雙氣注射的噴嘴1 ,該噴嘴位於爐 壁，上方噴嘴2為次音速，下方噴嘴3為超音速，該噴 嘴放置在熔渣形成區域内、或者恰位於熔渣管線上方， 而且蓮轉的特定期間被熔渣4所覆蓋。此外，噴嘴2和 噴嘴3之噴射流體，偽透過位於噴嘴頂端上方的孔洞從 噴嘴吹出，其尺寸足以抵銷超音速流在電爐内引起的濺 起，而且其瞄準爐内的某値位置，以減少煉銅期間耐火 塗料和電極的磨損。 下方氣噴射流3(超音速）可用來切割固體之銷鐵載料 ，而且稍後會形成金屬熔融_的脫磺（0 1 /2 0 2 4 C0) 和攪拌。藉由噴射流對泡體熔渣以及熔融體造成的機槭 攪拌，不但增加了兩者間的界面，也讓泡體熔渣和熔融 體間的熱量轉移（化學能量）更有效率地發生。爐内較佳 使用超過一處的噴嘴1,因此超音速噴射流3促進了金 屬熔融體之更快和更均勻的脱磺，也加速了鏑鐵的製程。 上方氣噴射流2 (次音速）係用來産生後-燃燒 (C0 + 1 / 2 0 2 C0 2 )，即在切割步驟、脱磺步驟期間， 上述反應在泡體熔渣内捕捉一氧化磺並從而加熱，對固 體載料提供了熱量轉移（化學能量）。在此區域内，超音 速噴射流3産生的攪拌，會産生熱而轉移至金屬熔融體 内，更快速提高熔融體的溫度。 -5 - (請先閲讀背面之注意事項再填寫本頁)486520 Printed by the Consumer Cooperatives of the Central Standards Bureau of the Ministry of Economic Affairs A7 __B7 _ V. Description of the Invention (,) The present invention does not relate to a method for injecting oxygen into an electric arc furnace during refining. More specifically, the present invention does not relate to a A method of injecting gas into an electric arc furnace during steelmaking, and the method is used after cutting, desulfurization, and metal desulfurization to generate sulfur monoxide-during combustion. During the melting of the carrier metal in the copper-making electric arc furnace (EAF), the sulphur contained in the pin iron will react with the injection gas in the furnace (which can desulfurize and cut the solid components contained), and then produce a monoxide ( C0), as shown in the following equation: C + 1/2 0 2 4C0, this is called the desulfurization reaction. After the production of sulphur monoxide, the sulphuric gas reacts with the injected oxygen in the furnace or with the gas present in the air (entering into the furnace through the slag outlet and the exhaust hole) to produce sulphuric gas (C02) As shown in the following equation: C0 + 1/2/2 to C02, this is called the post-combustion reaction. Both the desulfurization and post-combustion reactions are exothermic. However, the sulphur chloride produced in the furnace reacts with the injected gas in the furnace or the oxygen in the air. The portion of the heat (chemical energy) transferred to the solid carrier is relatively small. This is because the post-combustion reaction occurs above the furnace. Closed, that is, the area included between the slag pipeline and the exhaust pipe, and the energy contained in the gas is quickly dissipated above the furnace, and then discharged through the gas exhaustion system without penetrating the unexpected solid Loading material. In addition, the part that generates heat (chemical energy) is lost due to the nitrogen contained in the heated air (the air enters the furnace through the slag outlet and exhaust hole). On the other hand, the heat (chemical energy) obtained from the post-combustion reaction is transferred to the metal melt quite little, because the post-combustion reaction occurs above the slag pipeline, which is like thermal insulation, which reduces the heat transfer (chemical energy) ) Into the molten metal. -3-(Please read the precautions on the back before filling this page)-Binding-Thread size This paper size is applicable to Chinese National Standard (CNS) A4 (210X297 mm) Printed by the Consumer Cooperatives of the Central Standards Bureau of the Ministry of Economic Affairs 486520 A7 B7 V. Description of the Invention (>) In the face of the growing competition of the metallurgical industry and the requirements of environmental protection laws, the industry is vigorously developing the technology of making copper and iron in electric arc furnaces, with the goal of achieving the most energy-saving, the highest yield, the least environmental pollution, And improve the input energy, and the chemical energy produced by a sulphur oxide in a reasonable furnace. In order to make good use of the chemical energy derived from the sulfur monoxide reaction in the furnace, it is recommended to use additional oxygen. This method is called post-combustion, which means that during the solid carrier melting step, above the slag pipeline area, one or more devices are installed.値 Inject the chlorine nozzle. This method shows that very little heat (chemical energy) will be transferred into the gold melt. This is because the location of the injection nozzle is far from the slag pipeline, and as the solid-loaded slag progresses, the height decreases and gradually Move away from the hot zone to a place where the heat (chemical energy) obtained by the reaction is transferred to the solid carrier, which is no longer satisfactory. Wider than the solution, there is less heat (chemical energy) transferred to the molten metal, because the location is too far from above the slag pipeline, and because the slag itself acts like an insulating barrier, it cannot transfer heat (chemical energy) to the molten metal. in vivo. Therefore, an object of the present invention is to provide a method for injecting gas in an electric arc furnace during refining, which enables chemical energy derived from a post-combustion reaction of a gasified sulfon to be efficiently transferred to a metal carrier and a melt. Another object of the present invention is to provide a method for injecting gas into an electric arc furnace during steelmaking. The method provides a homogeneous metal melt and effective decarburization of the metal melt. Figure 1 is a side view inside the electric arc furnace, which illustrates the position of the nozzle. The second circle is a plan view inside the electric arc furnace, which describes the arrangement of the nozzles. 4-This paper size applies Chinese National Standard (CNS) A4 specification (210X 297 mm) (Please read the precautions on the back before filling out this page). · 11 486520 Printed by A7, Consumers Cooperative of the Central Standards Bureau, Ministry of Economic Affairs B7 V. Description of the invention (ii) The above and other objects of the present invention are pseudo-completed through a device for injecting gas into an electric arc furnace for refining and sales. The furnace pseudo-generates gas during cutting, desulfurization, and metal melting desulfurization. After sulfonation-used during combustion, the device uses one or more two-gas injection nozzles 1, which are located on the furnace wall, the upper nozzle 2 is the subsonic velocity, and the lower nozzle 3 is the supersonic velocity, which is placed in the slag formation The area, or just above the slag pipeline, is covered by the slag 4 for a certain period of time. In addition, the spray fluid from nozzles 2 and 3 is blown out of the nozzle through a hole located above the nozzle tip, and its size is sufficient to offset the splash caused by the supersonic flow in the electric furnace, and it is aimed at a certain position in the furnace to Reduces wear of refractory coatings and electrodes during copper smelting. The lower gas jet 3 (supersonic speed) can be used to cut the solid pin iron carrier, and later the metal will be melted and desulfurized (0 1/2 0 2 4 C0) and stirred. The agitation of the bubble slag and the organic maple by the jet stream not only increases the interface between the two, but also allows the heat transfer (chemical energy) between the bubble slag and the melt to occur more efficiently. It is preferable to use more than one nozzle 1 in the furnace, so the supersonic jet stream 3 promotes faster and more uniform desulfurization of the metal melt, and also speeds up the process of iron. The upper gas jet 2 (subsonic speed) is used to generate post-combustion (C0 + 1/2 0 2 C0 2), that is, during the cutting step and desulfurization step, the above reaction captures sulfur monoxide in the slag of the bubble And thus heating, provides heat transfer (chemical energy) to the solid carrier. In this area, the agitation generated by the supersonic jet stream 3 generates heat and transfers it into the molten metal, thereby increasing the temperature of the melt more quickly. -5-(Please read the notes on the back before filling this page)
D |裝· 訂 線 本紙張尺度適用中國國家標準（CNS ) A4規格（210 X 297公釐） 486520 A7 B7 五、發明説明（4 ) (請先閱讀背面之注意事項再填寫本頁) 本發明方法提供了一種更高效率的熱量轉移（化學能 量）法，由於熔渣形成區、或恰在熔渣管線上方的噴嘴 安排，會使爐的下方發生上逑反應，透過超音速和次音 速的熔渣和熔融體之機械攪拌，自然地延長爐内固體載 料以及相同的金屬熔融體之熱交換期間。 另外，本發明方法還提供一種減少特定消耗電能的方 法（對象為需要大量熱能之數以噸計鋼鐵），從一氣化磺 後-燃燒之更有效率的方法中所取得的化學能量，會成功 地轉移9 G %的熱至金屬載料中。這是因為發生在泡體熔 渣形成區的反應，會在熱氣透過爐管排出前，更長期間 並轉移上逑更多能量至金屬載料（其為完全的熔融載料 相）中，藉由促進本身加熱，也透過泡體熔渣和熔融體 内之超音波噴射流的攪拌，來提供泡體熔渣内的反應。 本發明由於有較大的熱能供應，因此增進了煉銅爐的 生産率，也增加現有設備的生産；另外由於一氧化磺在 爐内有較大比例燃燒，因此會降低導管的溫度，以及數 以噸計所生産銷鐵之特定體積的煙霧，因此很自然地降 低操作期間對大氣環境的污染；還有均質溫度的改善， 也減少銷鐵製程的耐久性，並減少耐火材料的浪費。 經濟部智慧財產局員工消費合作社印製 除了上述提及的優點以外，本發明的方法免除使用傳 統設備以及吹氧的裝置，如冷卻超音波可伸縮噴嘴、操 縱可消耗管材之操縱裝置和機械手臂等，在本發明之電 彍爐的注射氧的使用中，也減少由入口吹氧，降低上述 提及所遭遇的麻煩。 在煉鋼之電弧爐的製程中，其金屬載料可以是由任何 一 6 - 本紙張尺度適用中國國家標準（CNS ) A4規格（210X297公釐） 486520 A7 B7 五、發明説明（r ) 需要放置在熔融爐内之鐵屑、躊鐵、直接還原的鐵球、 各種金鼷合金、肋熔劑和各種可能形成的磺（石頭或底 材）、的混合物所構成。除了電能外，氧氣和化石燃料 也可作為熔融的能源供應。 電弧嬅包括了含有耐火材料襯裡之金屬殼6,該處置 有金屬載料，爐上方被圓頂7包封，具有孔洞8 ,透過 該孔洞可引入石墨電極5,加入金屬合金、和預先還原 的鐵，另外電弧爐還包括了管9,用來排除爐内熱氣和 灰塵。由於透過電弧的能量釋放（發生在石墨電極5末 端以及裝載金屬間），使得金屬載料發生熔融。 爐内裝載金屬前，將具有電極5之爐之圓頂7開啓且 向側面移開。裝載金屬載料的籃，移動至爐上方，而且 透過籃下方的開口，將載料卸至爐内。裝載操作完成後 ，將圓頂移向，降低並覆蓋在爐上，將電極5降低，直 到電極與金屬載料間開始形成電弧，轉移熔化金屬載料 所需之電能而開始熔融過程。用來熔融載料的額外能源 ，偽來自含於載料内元素之氣化的化學能量。 經濟部中央標準局員工消費合作社印製 (請先閱讀背面之注意事項再填寫本頁) 根據本發明，藉由電弧所生熱量來加熱金屬載料後的 數分鐘内，使用氧雙噴射噴嘴（dual oxygen jet nozzle) 注入氯以切割載料、開始脫磺，並促進一氧化碩的後-燃燒在本發明方法的待殊設計中，噴嘴具有兩値獨立 的内管，該内管可吹入氧切割和脱磺（超音速噴射流）， 或吹入氯以令切割和脫磺期間産生之一氧化磺進行後-燃燒（次音速噴射流），氣氣雙噴射流出口的管口末端設 -7 - 本紙張尺度適用中國國家標準（CNS ) A4規格（210'乂297公釐） 經濟部中央標準局員工消費合作社印製 486520 A7 B7 五、發明説明u ) 計有蓋子。 比起其他已知後-燃燒系統，本發明方法提供了下列 優點：由後-燃燒加入的氧氣單元獲得3.6k w/v 3氧之 能量；後-燃燒加入的氧氣單元增進了生産率；較低的 設備成本；快速的投資回收；更簡化的裝置、操作和維 護；以及只需要少許改變或沒有改變原爐設計。 依據不同爐尺寸及/或不同類型載料，必要進行之本 發明的變化可以包括使用値別獨立的氧氣噴射流噴嘴， 一値提供次音速噴射流而且另一個提供超音速噴射流， 該等噴嘴噴嘴偽放置在熔渣形成區内或恰在熔渣管線上 方，在熔渣覆蓋之待定蓮轉期間蓮作此等噴嘴，可選擇 單一噴嘴具有雙重氣噴射流或選擇具有値別氧噴射流之 多値噴嘴，一個噴嘴提供次音速噴射流而另一個提供超 音速噴射流。 參考符號說明 1 .......氣雙噴射流噴嘴 2 .......次音速噴射流 3 .......超音速噴射流 4 .......一氣化碩 5 .......石墨電極 6 .......金屬殼 7 .......圓頂 8 .......孔洞 9 .......管 -8 - 本紙張尺度適用中國國家標準（CNS ) A4規格（210 X 297公釐） ----------^^1 ^---------訂----^---1 ^ . · .: (請先閱讀背面之注意事項再填寫本頁)D | Binding and binding The paper size is applicable to Chinese National Standard (CNS) A4 (210 X 297 mm) 486520 A7 B7 V. Description of the invention (4) (Please read the precautions on the back before filling this page) The present invention The method provides a more efficient method of heat transfer (chemical energy). Due to the slag formation zone or the nozzle arrangement just above the slag pipeline, a scissor reaction will occur below the furnace, and it will pass the supersonic and subsonic speeds. The mechanical agitation of the molten slag and the melt naturally extends the heat exchange period of the solid carrier and the same metal melt in the furnace. In addition, the method of the present invention also provides a method for reducing specific power consumption (target is tons of steel requiring a large amount of thermal energy). The chemical energy obtained from a more efficient method of post-gasification sulphur combustion will succeed Ground transfers 9 G% of heat to the metal carrier. This is because the reaction that takes place in the slag forming zone of the bubble will transfer more energy to the metal carrier (which is a completely molten carrier phase) for a longer period of time before the hot gas is discharged through the furnace tube. The reaction in the foam slag is provided by promoting the heating itself, and also by the stirring of the foam slag and the ultrasonic jet in the melt. Due to the large heat energy supply, the invention improves the productivity of the copper smelting furnace, and also increases the production of existing equipment; in addition, due to the large proportion of sulfur monoxide burning in the furnace, the temperature of the duct will be reduced, as well as the number of The specific volume of smoke produced by tonnage produced in tons, therefore naturally reduces the pollution of the atmospheric environment during operation; the improvement of the homogenization temperature also reduces the durability of the iron sales process and reduces the waste of refractory materials. In addition to the advantages mentioned above, the method of the present invention eliminates the use of traditional equipment and oxygen blowing devices, such as cooling ultrasonic retractable nozzles, manipulating devices for manipulating consumable pipes, and mechanical arms. In addition, in the use of the injected oxygen in the electric oven of the present invention, the oxygen blowing from the inlet is also reduced, which reduces the troubles mentioned above. In the process of steelmaking arc furnace, the metal carrier can be any 6-this paper size applies Chinese National Standard (CNS) A4 specifications (210X297 mm) 486520 A7 B7 5. Description of the invention (r) need to be placed It consists of a mixture of iron filings, thorium iron, directly reduced iron balls, various gold-alloy alloys, rib fluxes, and various possible sulfonates (stone or substrate) in the melting furnace. In addition to electrical energy, oxygen and fossil fuels can also be used as a source of molten energy. The arc hob includes a metal shell 6 lined with a refractory material. The disposal is carried by a metal carrier. The furnace is enclosed by a dome 7 with holes 8 through which graphite electrodes 5 can be introduced, metal alloys added, and pre-reduced Iron. In addition, the electric arc furnace also includes a tube 9 for removing heat and dust from the furnace. Due to the release of energy through the arc (occurring at the end of the graphite electrode 5 and between the loaded metals), the metal carrier melts. Before loading metal into the furnace, open the dome 7 of the furnace with electrodes 5 and move it to the side. The metal-loaded basket is moved above the furnace, and the load is unloaded into the furnace through the opening below the basket. After the loading operation is completed, the dome is moved toward, lowered and covered on the furnace, and the electrode 5 is lowered until an arc starts between the electrode and the metal carrier, and the electric energy required to melt the metal carrier is transferred to start the melting process. The additional energy used to melt the carrier material is derived from the chemical energy of the gasification of the elements contained in the carrier material. Printed by the Consumer Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs (please read the precautions on the back before filling this page). According to the present invention, an oxygen double-jet nozzle is used within minutes after heating the metal carrier by the heat generated by the arc ( dual oxygen jet nozzle) Injecting chlorine to cut the carrier, start desulfurization, and promote post-combustion of the monoxide. In the special design of the method of the present invention, the nozzle has two independent inner tubes, which can be blown in. Oxygen cutting and desulfurization (supersonic jet stream), or blowing in chlorine to make one of the sulfur oxides generated during cutting and desulfurization for post-combustion (subsonic jet stream). -7-This paper size is in accordance with China National Standard (CNS) A4 (210 '乂 297 mm). Printed by the Consumer Cooperatives of the Central Standards Bureau of the Ministry of Economic Affairs. 486520 A7 B7. 5. Description of the invention u) Covered. Compared with other known post-combustion systems, the method of the present invention provides the following advantages: 3.6 kw / v 3 oxygen energy is obtained from the post-combustion oxygen unit; the post-combustion oxygen unit improves productivity; lower Cost of equipment; fast return on investment; more simplified installation, operation and maintenance; and only a small or no change to the original furnace design. Depending on the size of the furnace and / or different types of loading, the necessary changes to the invention may include the use of separate oxygen jet nozzles, one providing a subsonic jet and the other providing a supersonic jet. Nozzles are pseudo-placed in the slag forming area or just above the slag pipeline. These nozzles are used as the nozzles during the period of slag-covered lotus rotation. One nozzle can be selected to have a dual gas jet or the other can be selected to have an oxygen jet. As many nozzles, one nozzle provides a subsonic jet and the other provides a supersonic jet. DESCRIPTION OF REFERENCE SYMBOLS 1... Gas double jet nozzle 2.. Subsonic jet 3... Supersonic jet 4... One gasification Shuo 5 ....... Graphite electrode 6 ....... Metal case 7 ... Dome 8 ... Hole 9 ... Tube 8-This paper size is in accordance with Chinese National Standard (CNS) A4 (210 X 297 mm) ---------- ^^ 1 ^ --------- Order ---- ^ --- 1 ^. ·.: (Please read the notes on the back before filling this page)