TW393515B - Arrangement for discharging lump material - Google Patents

Arrangement for discharging lump material Download PDF

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Publication number
TW393515B
TW393515B TW087118225A TW87118225A TW393515B TW 393515 B TW393515 B TW 393515B TW 087118225 A TW087118225 A TW 087118225A TW 87118225 A TW87118225 A TW 87118225A TW 393515 B TW393515 B TW 393515B
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Taiwan
Prior art keywords
blast furnace
patent application
screw conveyor
scope
axis
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TW087118225A
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Chinese (zh)
Inventor
Gerald Rosenfellner
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Voest Alpine Ind Anlagen
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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27FURNACES; KILNS; OVENS; RETORTS
    • F27BFURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B1/00Shaft or like vertical or substantially vertical furnaces
    • F27B1/10Details, accessories, or equipment peculiar to furnaces of these types
    • F27B1/21Arrangements of devices for discharging
    • CCHEMISTRY; METALLURGY
    • C21METALLURGY OF IRON
    • C21BMANUFACTURE OF IRON OR STEEL
    • C21B13/00Making spongy iron or liquid steel, by direct processes
    • C21B13/02Making spongy iron or liquid steel, by direct processes in shaft furnaces
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27FURNACES; KILNS; OVENS; RETORTS
    • F27DDETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D3/00Charging; Discharging; Manipulation of charge
    • F27D3/08Screw feeders; Screw dischargers

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Furnace Charging Or Discharging (AREA)
  • Screw Conveyors (AREA)
  • Manufacture Of Iron (AREA)
  • Filling Or Emptying Of Bunkers, Hoppers, And Tanks (AREA)

Abstract

The invention relates to an arrangement for discharging lump material, particularly lump material containing iron oxide and/or sponge iron and coming from a shaft furnace, particularly from a direct reduction shaft furnace, wherein the discharging device is comprised of screw conveyors projecting into the shaft furnace above the bottom of the shaft furnace. A number of screw conveyors is aligned along axes, whose projection onto the horizontal cross-sectional area of the shaft furnace or the mathematical productions of the projection of these axes form secants of the horizontal cross-sectional area of the shaft furnace, these axes running off the center of the furnace cross section.

Description

五、發明說明() 特別地是包括氧化鐵及/或鐵絨的塊狀材料,及來自高 爐特別來自直接還原高爐的塊狀材料,其中該浅出裝置4 括數個突出進入該闻爐在尚爐底部上方的螺旋輔。 上述許多種類的洩出裝置係習知於先前技f^。通常, 該裝置係用於洩出來自高爐例如來自直接還原高爐的塊狀 材料,塊狀材料爲仍然包括一低含量氧化鐵的完全地或部 分地還原的鐵絨,這依照金屬化的程度而定。 使用遣類洩出裝置的高爐通常必須設計爲—圓柱中空 主體’而且包括具有氧化鐵及/或鐵絨之塊狀材料的堆積床 ’追具有包括加入商爐上部分之氧化鐵的材料,可能與例 如石灰或白雲石之添加劑混在一起。來自溶工汽化器的還 原氣體係注入高爐,而且因此經由沿著在高爐下方區域的 高爐圓周安裝的數個輸入口進入固態孝。熱量,可能充滿 灰塵的還原氣體經過該固態床向上流動,因此完全地或部 分地還原該氧化鐵床成爲鐵絨。 -- 完全或部分完成還原的鐵絨經由放置於高爐底部上方 的洩出裝置由高爐排出。一般說來,該洩出裝置係包括徑 向輸送螺旋輸送機之徑向裝置(稱爲高爐),螺旋輸送機 的軸線係存在於高爐之水平剖面。 安裝該洩出裝置之高爐底部區域的地區係包括最大的 有效洩出區域,以便確定該塊狀材料儘可能均勻地下降而 且達到連續運動及在反應地區材中材料的混合。 然而,該螺旋輸送機的徑向裝置在一些方面係不利的 ,其中在螺旋輸送機平面的塊狀材料的部分區域不能由輸 3 本紙張尺度適用中國國家標準(CNS)A4規格(210 * 297公釐〉 (請先Μ讀背面之注意事項再填寫本頁) - 線. 經濟部智慧財產局員工消費合作杜印製 經濟部智慧財產局貝工消費合作社印製 A7 B7 五、發明說明() 送機所覆蓋,而且因此以非常陡的靜止內角度的非移除區 域形成在非活性區域上方。這些稱爲“堆積區域”具有一 部份反應體積將變得部分非活性的缺點,活性韹積係爲該 期望的氣體-固體反應發生於高爐的區域。一部份的高爐反 應體積損失在於形成一幾乎非移動床。 結果,結塊及燒結塊分別由於礦石或已還原礦石的礦 漿留槽時間將形成在這些區域,這對於在材料流動具有負 面的影響,而且隨後甚至進一步降低該材料反應及產量。 螺旋輸送器的習知裝置以“堆積區域”形成在兩個區 域上方爲特色,即只藉由徑向排列的螺旋輸送器不充分覆 蓋的中間區域而且仍然幾乎不移動,並且藉由介於兩個鄰 近螺旋輸送器間定位的楔形區域所形成的區域,其中在一 方面聚集在這些不活潑區域上方的塊狀角錐體妨礙固體流 動,而且增加至一用於還原氣體的氣體輸入口的數量由逐 漸增加的塊狀材料所遮蔽,以至於不透氣塡充床是由於沉 積在塊狀材料的還原氣體的灰塵運載量局部形成。結果, 高爐所需要的均勻氣體散佈將不會發生。 螺旋輸送器的習知裝置的另一缺點在於,該軸的最大 可能軸承負載來自螺絲輸送器之水平對準軸。一典型的高 爐在洩出裝置的區域具有3至4公尺的半徑。該螺旋輸送 器係具有相同長度而且通常爲懸臂式的,即在高爐的圓周 部分受到支撐,該螺旋輸送機係藉由靜止重量及一定位於 高爐的大部分塡充床加以負載,該高爐的高度超過20公尺 〇 4 本紙張尺度適用中國國家標準(CNS)A4規格(210 X 297公釐) ' — —— — — II·"!!1 訂·!-線* (請先閲讀背面之注意事項再填寫本頁) 經濟部智慧財產局員工消t合作社印製 A7 ___B7_ 五、發明說明() 由於不期望的槓桿作用,在軸的軸承負載是非常高的 ,而且因此該軸承係容易遭到損壞,這導致經常及高成本 維修。 ; EP-B-0116 679揭示數個用於移動及洩出固體微粒進 入高爐及離開高爐的螺旋輸送器。徑向地安裝這些螺旋輸 送器,螺旋輸送器是懸臂的而且是相同長度的。雖然介於 鄰近螺釘的堆積區域藉由楔形擋板將降至最低,不能防止 "堆積區域”的產生。關於容易遭受破壞的問題沒有加以 處理;該問題來自螺旋輸送器的軸承。 ΕΡ-Β-0 085 290揭示一短錐形螺釘的裝置,這裝置受 到定位於高爐中心及圓周的斜面擋板兩者支撐。定位於中 心之斜面擋板是防止中間“堆積區域”的產生。具有向上 斜面的楔形擋板係定位在鄰近數個螺旋輸送器間,以至於 每個螺旋輸送器將定位在一種形式的凹槽中。 然而,已知在還原高爐中任何形式的·靜止擋板構成自 由爐橫截面降低,這是由塊狀材料促進聯結之觀點來看, 即在塊狀材料內鄰近微粒的部分燒結及結塊。 另一方面,通道可直接形成在螺旋輸送器上方,即由 於螺旋輸送器所達成的排出物,該塊狀材料的沉陷速率特 別高的區域。因爲還原氣體流進這些通道,所以在高爐中 的必需均勻氣體分佈將無法達成。 結果,沒有習知技術所熟知的螺旋輸送器之裝置及/或 擋板可防止塊狀錐體形成,這稱爲“堆積區域”的錐體在 高爐中心及介於每個高爐的內邊緣的兩個鄰近螺旋輸送器 5 本紙張尺度適用中國國家標準(CNS)A4規格<210 X 297公釐) ~ ------—II----I - - - - ----訂·! - /a-' - (請先閲讀背面之注$項再填寫本頁) A7 B7 五、發明說明() ,防止該塊狀材料大批均勻地沉陷至某一程度。 根據習知技術,假如螺旋輸送器在高爐的圓周及中心 受到支撐,則在螺旋輸送器的軸承的過量應變只可能降低 。因此,該高爐之中間區域不再由螺旋輸送器所覆蓋。 所以,本發明的技術問題係提供一用於排出來自高爐 的塊狀材料的裝置,這避免習知技術的缺點。將在高爐中 心及介於每個高爐的內邊緣的兩個鄰近螺旋輸送器的“堆 積區域”的產生加以避免或者降低至某一程度,在一方面 用於還原氣體的氣體輸入口不再加以隱藏,另一方面該反 應材料大部分均勻地沉陷。同時,在螺旋運送器的軸的軸 承應變將儘可能加以降低。 該技術問題藉由本發明裝置所解決,其特徵在於數個 螺旋輸送器沿著軸加以對準,進入高填的水平剖面區域的 突出,或這些軸突出的數量形成該高爐的水平截面積的交 叉處,這些軸遠離該高爐剖面中心。‘- 根據本發明加以安裝的螺旋輸送器有效地防止在高爐 的內邊緣產生塊狀角錐體。因此,反應材料均勻地沉陷, 而且礦石或已還原礦石在高爐的留槽時間不再有差異。再 者,該裝置減少該軸之軸承負載而且減少維修的次數。 根據本發明,該螺旋輸送器以該軸不對準高爐的中心 而是瞄準通過先前高爐的中心的方式加以安裝,這先前高 爐中心除非加以指定之外,意謂螺旋輸送器的幾何中心線 ,而且該線之數產達到高爐的內部產生表面交叉處的數量 。該螺旋輸送器的軸因此不對稱垂直通過高爐的高爐中心 6 本紙張尺度適用中國國家標準(CNS)A4規格(210 X 297公釐) (锖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 A7 B7___ 五、發明說明() 線。 本發明之另一優點是不對稱螺旋輸送器施加扭矩在高 爐的塊狀材料。因此’由於藉由螺旋輸送器所達成的排出 物’該塊狀材料不僅藉由重力下降,並且在高爐內該不對 稱螺旋輸送器的區域螺旋地加以移動。 附加螺旋地移動導致塊狀材料的緊密混合,而且有效 地防止結塊及通道之形成。 軸至高爐中心線的垂直距離對於所有螺旋輸送器係相 等或不相等。不對稱螺旋輸送器降低一介於塊狀角錐體產 生於輸送器上方的兩個螺旋輸送器間之楔形區域。 根據本發明另一特色,該螺旋輸送器之軸關於水平線 係向上傾斜或向下傾斜。 介於螺旋輸送器之軸及水平線間之角度較佳大約70。 ,傾斜角30°至50°係較佳的。 在一方面,該螺旋輸送器承受較少彎曲應力,但是承 受拉伸或壓縮應力的優點,這是依照傾斜方向而定。再者 ,移除該塊狀角錐體的附加部分。 根據較佳實施例',本發明裝置之螺旋輸送器安裝在兩 個重疊層部份,這些部份之一的下部份顯示螺旋輸送器之 已知徑向、水平裝置。在第二部份’根據本發明該螺旋輸 送器係向下傾斜及向上傾斜。 根據另一實施例,兩層部份具有相同大數目的螺旋輸 送器,其中用於螺旋輸送器進入兩層部份的高爐的開口係 均勻地分散在高爐之圓周,而且其中該螺旋輸送器進入該 7 本紙張尺度適用中國國家標準(CNS)A4規格(210 X 297公釐) (請先閱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費合作社印製 A7 B7 五、發明說明() 上層部份的高爐的開口係偏移抵住該下層部份之開口,達 到介於在圓周方向兩個鄰近開口間之一半中間角度。 該裝置結合該螺旋輸送器的徑向裝置及不對稱裝置之 優點。螺旋輸送器的徑向裝置是適合於排出來自高爐中心 的材料,但是包括關於高爐內邊緣之塊狀角錐體的已知問 題。放置於上方或下方之螺旋輸送機之平面係適於移除在 高爐內邊緣的塊狀角錐體或防止塊狀角錐體的產生。 根據本發明裝置之另一實施例,在高爐圓周之兩個側 邊受到支撐的兩個或多個螺旋輸送器係在平行的及水平面 上加以安裝。然而,平行螺旋輸送器之裝置不能覆蓋該全 部高爐截面。因此,一組至少兩個螺旋輸送器係較佳安裝 在平行螺旋輸送器之兩側,每組螺旋輸送器之軸以一方式 加以對準,這顯示遠離該高爐截面中A的交叉點及一組螺 旋輸送器之軸的交叉點定位在與適當^旋輸送器相同之高 爐截面的一半》 這種形式的螺旋輸送器裝置允許本質上包覆該全部高 爐截面及達成均勻排出該塊狀材料。 以下’本發明裝置藉由顯示於圖1至3之實施例加以 詳細解釋。 圖1係在兩層部份的高爐、螺旋輸送器,其中該上層 部份的螺旋輸送器係傾斜的。 圖2係經過該高爐的水平截面圖,螺旋輸送器之俯視 圖。 圖3係另一實施例:具有一組三個螺旋輸送器在平行 8 本紙張尺度適用中國國豕標準(CNS)A4規格(210 X 297公釐) (請先閲讀背面之注意事項再填寫本頁)V. Description of the invention () In particular, a block material including iron oxide and / or iron wool, and a block material from a blast furnace, particularly from a direct reduction blast furnace, wherein the shallow-out device 4 includes a number of protrusions entering the smelting furnace. Spiral auxiliary above the bottom of the furnace. Many of the above-mentioned bleed devices are known from the prior art. Generally, the device is used to discharge a block material from a blast furnace, such as from a direct reduction blast furnace. The block material is a completely or partially reduced iron wool that still includes a low content of iron oxide, depending on the degree of metallization. set. A blast furnace using a discharge device must usually be designed as a cylindrical hollow body and a stacked bed including a bulk material with iron oxide and / or iron wool. It may have material that includes iron oxide added to the upper part of the commercial furnace. Blended with additives such as lime or dolomite. The reducing gas system from the solvent vaporizer is injected into the blast furnace, and therefore enters the solid state via several input ports installed along the circumference of the blast furnace in the area below the blast furnace. The heat, possibly the dust-reducing reducing gas, flows upward through the solid bed, so the iron oxide bed is completely or partially reduced to become iron wool. -The completely or partially reduced iron wool is discharged from the blast furnace via a bleeder placed above the bottom of the blast furnace. Generally speaking, the venting device includes a radial device (called a blast furnace) that conveys the screw conveyor radially, and the axis of the screw conveyor exists in the horizontal section of the blast furnace. The area of the bottom area of the blast furnace where the venting device is installed includes the largest effective venting area in order to ensure that the block material descends as uniformly as possible and achieves continuous motion and mixing of materials in the reaction area. However, the radial device of the screw conveyor is disadvantageous in some aspects, in which part of the block-like material on the plane of the screw conveyor cannot be transported by 3 paper standards applicable to the Chinese National Standard (CNS) A4 specification (210 * 297) Mm> (please read the notes on the back before filling out this page)-line. Printed by the Intellectual Property Bureau of the Ministry of Economic Affairs for consumer cooperation Du printed by the Intellectual Property Bureau of the Ministry of Economic Affairs printed by A7 B7 Cooperated by the Fifth, the invention description () It is covered by the aircraft, and therefore the non-removed area with a very steep static inner angle is formed above the inactive area. These are called "stacking areas" and have the disadvantage that a part of the reaction volume will become partly inactive. The system is that the desired gas-solid reaction occurs in the blast furnace area. Part of the blast furnace reaction volume loss lies in the formation of an almost non-moving bed. As a result, the agglomerates and sintered blocks are retained by the ore or reduced ore slurry retention tanks, respectively. Time will form in these areas, which will have a negative impact on the flow of the material, and subsequently even further reduce the material's response and yield. The conventional device of the conveyor is characterized by the "stacking area" formed above the two areas, that is, only the intermediate area which is not sufficiently covered by the radially arranged spiral conveyors and still hardly moves, and by being located between two adjacent The area formed by the wedge-shaped areas positioned between the screw conveyors, in which the blocky pyramids gathered on the one hand above these inactive areas impede the flow of solids, and the number of gas inlets for reducing gas is gradually increased from The block material is shielded, so that the airtight bed is formed locally due to the dust carrying capacity of the reducing gas deposited on the block material. As a result, the uniform gas distribution required by the blast furnace will not occur. Another disadvantage of the known device is that the maximum possible bearing load of the shaft comes from the horizontally aligned shaft of the screw conveyor. A typical blast furnace has a radius of 3 to 4 meters in the area of the venting device. The screw conveyor has Of the same length and usually cantilevered, i.e. supported on the circumferential part of the blast furnace, the screw conveyor is Weight and most of the grate filling beds must be located in the blast furnace. The height of the blast furnace exceeds 20 meters. 04 This paper size is in accordance with China National Standard (CNS) A4 (210 X 297 mm). '— —— — — II · &Quot; !! 1 Order! -Line * (Please read the precautions on the back before filling out this page) Employees of the Intellectual Property Bureau of the Ministry of Economic Affairs printed A7 _B7_ V. Description of the invention () Due to unexpected leverage The bearing load on the shaft is very high, and therefore the bearing system is prone to damage, which leads to frequent and costly repairs. EP-B-0116 679 discloses several methods for moving and leaking solid particles into the blast furnace and Augers leaving the blast furnace. These augers are installed radially, the augers are cantilevered and of the same length. Although the accumulation area between the adjacent screws will be minimized by the wedge-shaped baffle, "the accumulation area" cannot be prevented. The problem of susceptibility to damage has not been addressed; this problem comes from the bearing of the screw conveyor. ΕΡ-Β -0 085 290 discloses a device with a short tapered screw, which is supported by a bevel baffle positioned at the center and circumference of the blast furnace. The bevel baffle positioned at the center prevents the creation of a "stacking area" in the middle. It has an upward bevel The wedge-shaped baffle is positioned between several screw conveyors so that each screw conveyor will be positioned in a form of groove. However, it is known that any type of stationary baffle in the reduction blast furnace constitutes a free furnace The cross section is reduced, which is the point of view of the connection promoted by the bulk material, that is, the sintering and agglomeration of the part adjacent to the particles in the bulk material. On the other hand, the channel can be formed directly above the screw conveyor, that is, due to the screw conveyor The effluent reached by the device, the area where the sinking rate of the bulk material is particularly high. Because the reducing gas flows into these channels, the blast furnace The necessary uniform gas distribution in the process will not be achieved. As a result, the device and / or baffle of the screw conveyor, which is well known in the art, can prevent the formation of massive cones, which are called "stacking areas" in the center of the blast furnace And two adjacent screw conveyors located between the inner edges of each blast furnace. 5 This paper size applies to China National Standard (CNS) A4 specifications < 210 X 297 mm) ~ -------- II ---- I-------- Order ·!-/ A- '-(Please read the note on the back before filling this page) A7 B7 V. Description of the invention () to prevent the bulk material from sinking evenly To some extent, according to the conventional technology, if the screw conveyor is supported on the circumference and center of the blast furnace, the excessive strain on the bearing of the screw conveyor can only be reduced. Therefore, the middle area of the blast furnace is no longer driven by the screw conveyor Covered. Therefore, the technical problem of the present invention is to provide a device for discharging block materials from a blast furnace, which avoids the disadvantages of the conventional technology. It will be in the center of the blast furnace and two adjacent between the inner edges of each blast furnace. Production of the "stacking area" of the screw conveyor In order to avoid or reduce to a certain degree, on the one hand, the gas inlet for reducing gas is no longer hidden, and on the other hand, the reaction material mostly sinks uniformly. At the same time, the bearing strain on the shaft of the screw conveyor will be minimized. The technical problem is solved by the device of the present invention, which is characterized in that several screw conveyors are aligned along the axis and enter the protrusions of the high-filled horizontal section area, or the number of protrusions of these axes forms the level of the blast furnace. At the intersection of the cross-sectional areas, these axes are far away from the center of the blast furnace section .'- The screw conveyor installed according to the present invention effectively prevents the formation of block pyramids on the inner edge of the blast furnace. Therefore, the reactive material sinks uniformly, and the ore or There is no longer a difference in the retention time of the reduced ore in the blast furnace. Furthermore, the device reduces the bearing load on the shaft and reduces the number of repairs. According to the present invention, the screw conveyor is installed in such a way that the axis is not aligned with the center of the blast furnace and is aimed at passing through the center of the previous blast furnace, which previously means the geometric centerline of the screw conveyor unless specified The number of lines produced reaches the number of surface intersections inside the blast furnace. The axis of the screw conveyor therefore passes asymmetrically and vertically through the blast furnace center of the blast furnace. 6 This paper size applies to China National Standard (CNS) A4 (210 X 297 mm) (锖 Please read the precautions on the back before filling this page). --. Line_ Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs A7 B7___ V. Invention Description () Line. Another advantage of the present invention is that the asymmetric screw conveyor applies torque to the block material in the blast furnace. Therefore, 'due to the discharge achieved by the screw conveyor', the bulk material is not only lowered by gravity, but also moved in an area of the asymmetric screw conveyor in the blast furnace spirally. The additional spiral movement results in intimate mixing of the bulk material and effectively prevents the formation of agglomerates and channels. The vertical distance from the shaft to the center line of the blast furnace is equal or unequal for all screw conveyor systems. The asymmetric spiral conveyor lowers a wedge-shaped area between the two spiral conveyors generated by the block pyramids above the conveyor. According to another feature of the invention, the axis of the screw conveyor is inclined upward or downward with respect to the horizontal line. The angle between the axis of the screw conveyor and the horizontal line is preferably about 70. An inclination angle of 30 ° to 50 ° is preferred. On the one hand, the screw conveyor is subjected to less bending stresses, but has the advantage of being subjected to tensile or compressive stresses, depending on the direction of tilt. Furthermore, remove the additional part of the blocky pyramid. According to the preferred embodiment, the screw conveyor of the device of the present invention is mounted on two overlapping layers, the lower part of one of these sections showing the known radial and horizontal device of the screw conveyor. In the second part 'the screw conveyor according to the invention is inclined downwards and upwards. According to another embodiment, the two-story section has the same number of screw conveyors, wherein the openings for the screw conveyor to enter the blast furnace of the two-story section are evenly distributed around the circumference of the blast furnace, and wherein the screw conveyors enter The 7 paper sizes are in accordance with Chinese National Standard (CNS) A4 specifications (210 X 297 mm) (please read the precautions on the back before filling out this page). B7 V. Description of the invention () The opening of the blast furnace in the upper part is offset against the opening in the lower part to reach a half-middle angle between two adjacent openings in the circumferential direction. This device combines the advantages of the radial and asymmetrical devices of the screw conveyor. The radial device of the screw conveyor is suitable for discharging material from the center of the blast furnace, but includes known problems with a block pyramid in the inner edge of the blast furnace. The plane of the screw conveyor placed above or below is suitable for removing the block pyramids at the inner edge of the blast furnace or preventing the generation of block pyramids. According to another embodiment of the apparatus of the present invention, two or more screw conveyors supported on both sides of the circumference of the blast furnace are installed on parallel and horizontal planes. However, the device of the parallel screw conveyor cannot cover the entire blast furnace section. Therefore, a set of at least two screw conveyors are preferably installed on both sides of the parallel screw conveyors, and the axes of each group of screw conveyors are aligned in a manner, which shows that away from the intersection of A in the blast furnace section and a The cross point of the axis of the group of screw conveyors is positioned at half of the same blast furnace cross section as the appropriate screw conveyor. This type of screw conveyor device allows essentially covering the entire blast furnace section and achieving uniform discharge of the bulk material. Hereinafter, the device of the present invention is explained in detail by the embodiments shown in Figs. Fig. 1 is a blast furnace and auger conveyor in a two-story section, and the auger conveyor in the upper section is inclined. Fig. 2 is a horizontal sectional view through the blast furnace, a top view of the screw conveyor. Figure 3 is another embodiment: a set of three screw conveyors in parallel 8 paper sizes applicable to China National Standard (CNS) A4 (210 X 297 mm) (Please read the precautions on the back before filling in this page)

T 經濟部智慧財產局員工消費合作社印製 A7 B7 五、發明說明() 螺釘之兩側的組合連續的、平行螺釘的俯視圖。 元件符號 1 高爐 2 塡充床 3 螺旋輸送器 4 螺旋輸送器 5 兩層部份 6 兩層部份 7 開口 8, 開口 9 平行螺旋輸送器 10 圓柱套筒 11 短螺旋輸送器 圖1顯示經過包括塡充床2的塊狀材料之高爐1的垂 直剖面圖,該塊狀材料係藉由螺旋輸送器3, 4由高爐所排 出。螺旋輸送器3, 4安裝在兩層部份5, 6,這具有顯示已 知徑向裝置的下層截面6之螺旋輸送器4,該軸定位在一 平面上。上層部份5的螺旋輸送器3係向上傾斜的,介於 螺旋輸送器3及水平軸間大約爲40°的角度α。 圖2顯示經過高爐1的水平剖面之俯視圖,顯示下層 部份6之螺旋輸送器4的徑向裝置。上層部份5之螺旋輸 送器4之軸相對於其他徑向裝置傾斜大約20°之角度冷。 進入該上層部分5之高爐1的螺旋輸送器3之開口 8係偏 移抵住進入該下層部份6之高爐1的螺旋輸送器4之開口 9 本紙張尺度適用中ΪΪ家標準(CNS)A4規格(21〇χ 297公釐) (請先閲讀背面之注意事項再填寫本頁)T Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs A7 B7 V. Description of the invention () Top view of a combination of continuous, parallel screws on both sides of the screw. Symbol 1 blast furnace 2 radon filling bed 3 screw conveyor 4 screw conveyor 5 two-layer section 6 two-layer section 7 opening 8, opening 9 parallel screw conveyor 10 cylindrical sleeve 11 short screw conveyor Figure 1 shows Vertical sectional view of the blast furnace 1 of the bulk material of the grate packed bed 2, which is discharged from the blast furnace by the screw conveyors 3, 4. The screw conveyors 3, 4 are mounted on two-layer sections 5, 6, which have the screw conveyor 4 showing the lower section 6 of the known radial device, the axis being positioned on a plane. The screw conveyor 3 of the upper part 5 is inclined upward, and the angle α is about 40 ° between the screw conveyor 3 and the horizontal axis. Fig. 2 shows a plan view of a horizontal section passing through the blast furnace 1, showing the radial arrangement of the screw conveyor 4 of the lower section 6. The axis of the screw conveyor 4 of the upper part 5 is inclined at an angle of about 20 ° relative to the other radial devices. The opening 8 of the screw conveyor 3 entering the blast furnace 1 of the upper section 5 is offset against the opening 9 of the screw conveyor 4 of the blast furnace 1 entering the lower section 6. This paper applies the Chinese Standard (CNS) A4 Specifications (21〇χ 297mm) (Please read the precautions on the back before filling in this page)

^ ·1111111 I — — — — — — I 經濟部智慧財產局貝工消费合作社印製 393515 A7 _B7_ 五、發明說明() 7,這藉由介於兩個鄰近開口 6〇°間之中間角度7*之三分之 -- 〇 圖3顯示另一實施例之俯視圖,其中三個連續的、平 行螺旋輸送器9,每個在高爐1之圓柱套筒10之兩側受到 支撐。短螺旋輸送器11, 12安裝在平行配置的螺旋輸送器 9之兩側,其軸顯示交叉點定位於遠離該高爐之中心。該 螺旋輸送器9, 11,12之裝置確定來自高爐塊狀材料之均勻 排出。 (請先閱讀背面之注意事項再填寫本頁) *SJ_ _ .線 經濟部智慧財產局員工消費合作社印製 10 本紙張尺度適用中國國家標準(CNS)A4規格(210 X 297公釐)^ · 1111111 I — — — — — — I Printed by the Shellfish Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs 393515 A7 _B7_ V. Description of the invention () 7 This is achieved by an intermediate angle 7 between two adjacent openings 60 ° Three-thirds-〇 FIG. 3 shows a top view of another embodiment in which three continuous, parallel spiral conveyors 9 are each supported on both sides of the cylindrical sleeve 10 of the blast furnace 1. The short screw conveyors 11, 12 are installed on both sides of the screw conveyor 9 arranged in parallel, and the axes show that the intersection points are located far from the center of the blast furnace. The device of the screw conveyors 9, 11, 12 determines the uniform discharge of the bulk material from the blast furnace. (Please read the precautions on the back before filling this page) * SJ_ _ .Line Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economy 10 This paper size applies to China National Standard (CNS) A4 (210 X 297 mm)

Claims (1)

393515393515 六、申請專利範圍 壻.一1#冥处.汙踔年Θ月λ日开是、CI 修正冰有矣變更實質内容是否准子#/JE^。 經濟部智慧財產局貝工消费合作社印製 L〜種用於洩出塊狀材料(2)之裝置,包括氧化谶及 /或鐵絨的塊狀材料,及來自高爐(1)來自直接還原高爐 的塊狀材料,高爐(1)設計爲具有圓形水平截®的一圓柱 中空主體’而且其中該洩出裝置包括數個突出進入該高爐 在高爐底部上方的螺旋輸送器(3, 4),特徵在於數個螺 旋輸送器(3)係沿著軸對準,進入高爐(1)的水平剖面 區域的突出,或這些軸突出的數量形成該高爐(1)的水平 截面的交叉處,這些軸遠離該高爐剖面中心。 2.如申請專利範圍第1項所述之裝置,其中螺旋輸送 器(3)之軸關於水平線係向上傾斜或向下傾斜的❶ 3_如申請專利範圍第2項所述之裝置,其中螺旋輸送 器(3)之軸及水平線間之角度爲70° 。 4. 如申請專利範圍第3項所述之裝置,其中螺旋輸送 •二. 器(3)之軸及水平線間之角度係介於*30°至7〇°間。 5. 如申請專利範圍第1項至第4項任一項所述之裝置 ,其中螺旋輸送器(3, 4)安裝在兩個重疊層部份(5, 6) ,一層部份顯示螺旋輸送器(4)之已知徑向水平裝置。 6. 如申請專利範圍第5項所述之裝置,其上及下層部 份(5, 6)具有相等數目的螺旋輸送器(3, 4),進入兩層 部份(5, 6)之高爐(1)的螺旋輸送器(3, 4)之開口(8, 7)係沿著之圓周均勻分布,而且進入該上層部份(5)之 高爐(1)的高爐螺旋輸送器(3)的開口(8)係藉由圓周 方向兩個鄰近開口間之中心角度之一半加以偏移抵住下層 部份(6)之開口(7)。 1 本紙張尺度適用中國國家標準(CNS)A4規格(21〇 x 297公釐) (請先閱讀背面之注意事項再填寫本頁) • n I I I I ^ n n 1· I I I I ( n i I ^ Γ I l· I I 393515Sixth, the scope of patent application 一. 一 ###. The year of filthy year Θ is open on the 1st day of month Θ, CI amends the ice content to change the substantive content # / JE ^. Printed by the Intellectual Property Bureau of the Ministry of Economic Affairs, Shellfish Consumer Cooperative, L ~ a device for discharging block materials (2), including block materials of thorium oxide and / or iron wool, and from a blast furnace (1) from a direct reduction blast furnace The block material, the blast furnace (1) is designed as a cylindrical hollow body with a circular horizontal section® and wherein the venting device includes several screw conveyors (3, 4) protruding into the blast furnace above the bottom of the blast furnace, It is characterized in that several screw conveyors (3) are aligned along the axis and protrude into the horizontal section area of the blast furnace (1), or the number of these axis protrusions form the intersection of the horizontal section of the blast furnace (1), these axes Far from the center of the blast furnace profile. 2. The device according to item 1 of the scope of patent application, wherein the axis of the screw conveyor (3) is inclined upward or downward with respect to a horizontal line. 3_ The device according to item 2 of the scope of patent application, wherein the spiral The angle between the axis of the conveyor (3) and the horizontal line is 70 °. 4. The device as described in item 3 of the scope of patent application, wherein the screw conveyer • The angle between the axis and the horizontal line of the device (3) is between * 30 ° and 70 °. 5. The device according to any one of claims 1 to 4 of the scope of patent application, wherein the screw conveyor (3, 4) is installed in two overlapping layers (5, 6), and the first layer shows the spiral conveying (4) is a known radial horizontal device. 6. The device as described in item 5 of the scope of patent application, the upper and lower parts (5, 6) of which have an equal number of screw conveyors (3, 4), enter the blast furnace of the two-layer part (5, 6) (1) The openings (8, 7) of the screw conveyor (3, 4) are evenly distributed along the circumference and enter the blast furnace screw conveyor (3) of the blast furnace (1) of the upper part (5). The opening (8) is offset against the opening (7) of the lower layer portion (6) by half of the center angle between two adjacent openings in the circumferential direction. 1 This paper size is in accordance with China National Standard (CNS) A4 specification (21 × 297 mm) (Please read the notes on the back before filling this page) • n IIII ^ nn 1 · IIII (ni I ^ Γ I l · II 393515 六、申請專利範圍 壻.一1#冥处.汙踔年Θ月λ日开是、CI 修正冰有矣變更實質内容是否准子#/JE^。 經濟部智慧財產局貝工消费合作社印製 L〜種用於洩出塊狀材料(2)之裝置,包括氧化谶及 /或鐵絨的塊狀材料,及來自高爐(1)來自直接還原高爐 的塊狀材料,高爐(1)設計爲具有圓形水平截®的一圓柱 中空主體’而且其中該洩出裝置包括數個突出進入該高爐 在高爐底部上方的螺旋輸送器(3, 4),特徵在於數個螺 旋輸送器(3)係沿著軸對準,進入高爐(1)的水平剖面 區域的突出,或這些軸突出的數量形成該高爐(1)的水平 截面的交叉處,這些軸遠離該高爐剖面中心。 2.如申請專利範圍第1項所述之裝置,其中螺旋輸送 器(3)之軸關於水平線係向上傾斜或向下傾斜的❶ 3_如申請專利範圍第2項所述之裝置,其中螺旋輸送 器(3)之軸及水平線間之角度爲70° 。 4. 如申請專利範圍第3項所述之裝置,其中螺旋輸送 •二. 器(3)之軸及水平線間之角度係介於*30°至7〇°間。 5. 如申請專利範圍第1項至第4項任一項所述之裝置 ,其中螺旋輸送器(3, 4)安裝在兩個重疊層部份(5, 6) ,一層部份顯示螺旋輸送器(4)之已知徑向水平裝置。 6. 如申請專利範圍第5項所述之裝置,其上及下層部 份(5, 6)具有相等數目的螺旋輸送器(3, 4),進入兩層 部份(5, 6)之高爐(1)的螺旋輸送器(3, 4)之開口(8, 7)係沿著之圓周均勻分布,而且進入該上層部份(5)之 高爐(1)的高爐螺旋輸送器(3)的開口(8)係藉由圓周 方向兩個鄰近開口間之中心角度之一半加以偏移抵住下層 部份(6)之開口(7)。 1 本紙張尺度適用中國國家標準(CNS)A4規格(21〇 x 297公釐) (請先閱讀背面之注意事項再填寫本頁) • n I I I I ^ n n 1· I I I I ( n i I ^ Γ I l· I I A8SC8D8 393515 六、申請專利範圍 7.如申請專利範圍第3項所述之裝置,其中兩個或多 個螺旋輸送器在高爐之圓柱套筒(10)之兩側受到支 撑’螺旋輸送器(9)係以平行配置,而且一組至少兩個螺 旋輸送器(11, 12)係較佳安裝在平行螺旋輸送器(9)之 兩側’每組螺旋輸送器(11,12)之軸以一方式加以對準 ’這顯示遠離該高爐截面中心的交叉點及一組螺旋輸送器 12)之軸的交叉點定位在與適當螺旋輸送器相同之 高爐截面的一半》 <請先《讀背面之注意事項再填寫本頁) 經濟部智慧財產局員工消費合作社印製 本紙張尺度適用中國國家梯準(CNS)A4規格(2W x 297公袭)Sixth, the scope of patent application 一. 一 ###. The year of filthy year Θ is open on the 1st day of month Θ, CI amends the ice content to change the substantive content # / JE ^. Printed by the Intellectual Property Bureau of the Ministry of Economic Affairs, Shellfish Consumer Cooperative, L ~ a device for discharging block materials (2), including block materials of thorium oxide and / or iron wool, and from a blast furnace (1) from a direct reduction blast furnace The block material, the blast furnace (1) is designed as a cylindrical hollow body with a circular horizontal section® and wherein the venting device includes several screw conveyors (3, 4) protruding into the blast furnace above the bottom of the blast furnace, It is characterized in that several screw conveyors (3) are aligned along the axis and protrude into the horizontal section area of the blast furnace (1), or the number of these axis protrusions form the intersection of the horizontal section of the blast furnace (1), these axes Far from the center of the blast furnace profile. 2. The device according to item 1 of the scope of patent application, wherein the axis of the screw conveyor (3) is inclined upward or downward with respect to a horizontal line. 3_ The device according to item 2 of the scope of patent application, wherein the spiral The angle between the axis of the conveyor (3) and the horizontal line is 70 °. 4. The device as described in item 3 of the scope of patent application, wherein the screw conveyer • The angle between the axis and the horizontal line of the device (3) is between * 30 ° and 70 °. 5. The device according to any one of claims 1 to 4 of the scope of patent application, wherein the screw conveyor (3, 4) is installed in two overlapping layers (5, 6), and the first layer shows the spiral conveying (4) is a known radial horizontal device. 6. The device as described in item 5 of the scope of patent application, the upper and lower parts (5, 6) of which have an equal number of screw conveyors (3, 4), enter the blast furnace of the two-layer part (5, 6) (1) The openings (8, 7) of the screw conveyor (3, 4) are evenly distributed along the circumference and enter the blast furnace screw conveyor (3) of the blast furnace (1) of the upper part (5). The opening (8) is offset against the opening (7) of the lower layer portion (6) by half of the center angle between two adjacent openings in the circumferential direction. 1 This paper size is in accordance with China National Standard (CNS) A4 specification (21 × 297 mm) (Please read the notes on the back before filling this page) • n IIII ^ nn 1 · IIII (ni I ^ Γ I l · II A8SC8D8 393515 6. Patent application scope 7. The device described in item 3 of the patent application scope, in which two or more screw conveyors are supported on both sides of the cylindrical sleeve (10) of the blast furnace. 9) It is arranged in parallel, and a group of at least two screw conveyors (11, 12) are preferably installed on both sides of the parallel screw conveyor (9). The axis of each group of screw conveyors (11, 12) is One way to align it 'This shows that the intersection point away from the center of the blast furnace section and the axis of a group of screw conveyors 12) is positioned at half of the same blast furnace section as a suitable screw conveyor "< Please read the back Please pay attention to this page, please fill in this page) Printed by the Employees' Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs, the paper size is applicable to China National Standard for Ladder (CNS) A4 (2W x 297 public attack)
TW087118225A 1997-11-13 1998-11-02 Arrangement for discharging lump material TW393515B (en)

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DE3067097D1 (en) * 1979-05-09 1984-04-26 Foster Wheeler Power Prod Vertical pyrolysing furnace, more particularly for tyre pieces
AT372109B (en) * 1982-01-11 1983-09-12 Voest Alpine Ag DEVICE FOR DISCHARGING HOT GOODS, ESPECIALLY IRON SPONGE FROM A CHAMBER

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EP1029087A1 (en) 2000-08-23
ATA192297A (en) 1999-03-15
CN1278870A (en) 2001-01-03
JP2001523760A (en) 2001-11-27
KR20010032033A (en) 2001-04-16
CA2310022A1 (en) 1999-05-27
AT405765B (en) 1999-11-25
BR9814191A (en) 2000-09-26
WO1999025881A1 (en) 1999-05-27
ZA9810206B (en) 1999-05-17
PL340566A1 (en) 2001-02-12
AU1336299A (en) 1999-06-07

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