TWI672381B - Hot air furnace - Google Patents
Hot air furnace Download PDFInfo
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- TWI672381B TWI672381B TW107140578A TW107140578A TWI672381B TW I672381 B TWI672381 B TW I672381B TW 107140578 A TW107140578 A TW 107140578A TW 107140578 A TW107140578 A TW 107140578A TW I672381 B TWI672381 B TW I672381B
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- flat partition
- heat storage
- iron sheet
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B9/00—Stoves for heating the blast in blast furnaces
- C21B9/02—Brick hot-blast stoves
- C21B9/06—Linings
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23M—CASINGS, LININGS, WALLS OR DOORS SPECIALLY ADAPTED FOR COMBUSTION CHAMBERS, e.g. FIREBRIDGES; DEVICES FOR DEFLECTING AIR, FLAMES OR COMBUSTION PRODUCTS IN COMBUSTION CHAMBERS; SAFETY ARRANGEMENTS SPECIALLY ADAPTED FOR COMBUSTION APPARATUS; DETAILS OF COMBUSTION CHAMBERS, NOT OTHERWISE PROVIDED FOR
- F23M5/00—Casings; Linings; Walls
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23M—CASINGS, LININGS, WALLS OR DOORS SPECIALLY ADAPTED FOR COMBUSTION CHAMBERS, e.g. FIREBRIDGES; DEVICES FOR DEFLECTING AIR, FLAMES OR COMBUSTION PRODUCTS IN COMBUSTION CHAMBERS; SAFETY ARRANGEMENTS SPECIALLY ADAPTED FOR COMBUSTION APPARATUS; DETAILS OF COMBUSTION CHAMBERS, NOT OTHERWISE PROVIDED FOR
- F23M5/00—Casings; Linings; Walls
- F23M5/04—Supports for linings
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Vertical, Hearth, Or Arc Furnaces (AREA)
- Furnace Housings, Linings, Walls, And Ceilings (AREA)
Abstract
本發明的目的在於減低製造成本。本發明之熱風爐具備有：鐵皮210；下壁部220，沿著鐵皮210的內側而設置，形成有一個或複數個貫通孔(送風口112a及排氣口112b)，且以可鑄耐火物構成；第一支持構造300，設於比下壁部220更上方處，且具有從鐵皮210的內側突出的第一載置面(上表面312)；以及上壁部230，沿著鐵皮210的內側而設於下壁部220的上方，由載置於第一載置面之複數個外壁磚塊232向鉛直方向堆疊而構成。 The purpose of the present invention is to reduce manufacturing costs. The hot blast stove of the present invention includes: an iron sheet 210; a lower wall portion 220, which is provided along the inner side of the iron sheet 210, is formed with one or more through holes (air supply port 112a and exhaust port 112b), and is castable refractory The first support structure 300 is provided above the lower wall portion 220 and has a first placement surface (upper surface 312) protruding from the inner side of the iron sheet 210; and the upper wall portion 230, along the The inside is provided above the lower wall portion 220 and is composed of a plurality of outer wall bricks 232 placed on the first placement surface stacked vertically.
Description
本發明係關於熱風爐。 The invention relates to a hot blast stove.
熱風爐係將1200℃左右的熱風(空氣)供給到高爐之裝置。熱風爐係具備有燃燒室、以及與燃燒室連通之蓄熱室。在熱風爐交互地進行蓄熱程序及送風程序。蓄熱程序係將在燃燒室產生的燃燒排放氣體所具有的熱蓄積在蓄熱室之程序。送風程序係從蓄熱室送出熱風之程序。 The hot blast furnace is a device that supplies hot air (air) of about 1200 ° C to the blast furnace. The hot blast stove is equipped with a combustion chamber and a heat storage chamber communicating with the combustion chamber. The heat storage program and the air supply program are interactively performed in the hot blast stove. The heat storage procedure is a procedure for accumulating the heat of the combustion exhaust gas generated in the combustion chamber in the heat storage chamber. The air supply procedure is a procedure for sending hot air from the regenerator.
蓄熱室具備有軸為鉛直方向之圓筒形狀的外壁，且其內部空間由向水平方向延伸之平隔板在鉛直方向分隔。在蓄熱室中之平隔板的上方，有複數個格子磚(checker brick，又稱為gitter brick)層疊成多段而作為蓄熱體。在蓄熱室的外壁中之平隔板的下方，形成有送風口及排氣口等貫通口。 The regenerator is provided with a cylindrical outer wall whose axis is in the vertical direction, and its internal space is divided in the vertical direction by a flat partition plate extending in the horizontal direction. Above the flat baffle in the regenerator, a plurality of checker bricks (also known as gitter bricks) are stacked into multiple sections to serve as regenerators. Under the flat wall in the outer wall of the regenerator, there are formed through-holes such as an air supply port and an exhaust port.
蓄熱程序中，係使1400℃左右的燃燒排放氣體從格子磚的上方往下方通過，從而使燃燒排放氣體的熱蓄積於格子磚。通過格子磚(已被格子磚吸走熱)之燃燒排放氣體通過排氣口而排出到熱風爐外。送風程序中，係使空氣通過送風口而供給到蓄熱室內，並使空氣從格子磚的 下方往上方通過，而利用蓄積於格子磚之熱使空氣加熱。 In the heat storage process, combustion exhaust gas at about 1400 ° C is passed from above to below the grid brick, so that the heat of the combustion exhaust gas is accumulated in the grid brick. The combustion exhaust gas passing through the lattice brick (the heat has been absorbed by the lattice brick) is discharged to the outside of the hot blast stove through the exhaust port. In the air supply process, the air is supplied into the heat storage chamber through the air outlet, and the air is Passing from below to above, and using the heat accumulated in the lattice brick to heat the air.
如上所述，蓄熱室因為會有1200℃~1400℃左右的氣體(燃燒排放氣體、熱風)通過，所以外壁形成為鐵皮與外壁磚塊之二層構造(例如專利文獻1)。詳言之，將外壁磚塊係於圓筒形狀的鐵皮的內側向鉛直方向堆疊。 As described above, since the regenerator can pass gases (combustion exhaust gas, hot air) of about 1200 ° C to 1400 ° C, the outer wall is formed as a two-layer structure of iron skin and outer wall bricks (for example, Patent Document 1). In detail, the outer wall bricks are stacked on the inner side of the cylindrical metal sheet in a vertical direction.
(專利文獻1)日本特公昭51-1205號公報 (Patent Document 1) Japanese Patent Publication No. 51-1205
如上所述，以往的熱風爐的外壁係由複數個外壁磚塊堆積而構成，所以在貫通口的形成上需要很多的工時，需要很高的成本。 As described above, the outer wall of the conventional hot blast stove is formed by stacking a plurality of outer wall bricks, so it requires a lot of man-hours and a high cost to form the through-hole.
本發明目的在於，有鑒於如上述的課題而提供可減低製造成本之熱風爐。 An object of the present invention is to provide a hot blast stove that can reduce manufacturing costs in view of the above-mentioned problems.
為了解決上述課題，本發明的一態樣之熱風爐係具備有：鐵皮；下壁部，沿著鐵皮的內側而設置，形成有一個或複數個貫通孔，且以可鑄(castable)耐火物構成；第一支持構造，設於比下壁部更上方處，且具有從鐵皮的內側突出的第一載置面；以及上壁部，沿著鐵皮的內側而設於下壁部的上方，且由載置於第一載置面之複數個外壁磚塊向鉛直方向堆疊而構成。 In order to solve the above-mentioned problems, the hot blast stove according to an aspect of the present invention includes: an iron sheet; a lower wall portion is provided along the inner side of the iron sheet, one or more through holes are formed, and castable refractory Structure; the first support structure is provided above the lower wall portion and has a first placement surface protruding from the inner side of the iron sheet; and the upper wall portion is provided above the lower wall portion along the inner side of the iron sheet, The plurality of outer wall bricks placed on the first placement surface are stacked vertically.
此外，亦可具備有：第二支持構造，設於比第一支持構造更下方處，且具有從鐵皮的內側突出的第二載置面；以及平隔板，載置於第二支持構造。 In addition, a second support structure may be provided below the first support structure and have a second placement surface protruding from the inner side of the iron sheet; and a flat partition plate placed on the second support structure.
另外，亦可具備有支持平隔板之支柱，其中平隔板係由複數個平隔板片所構成，在平隔板片的下表面係形成有供支柱的上端嵌合之凹槽部，且使兩個以上的平隔板片的凹槽部嵌合於一個支柱的上端。 In addition, it may also be provided with a pillar supporting a flat partition plate, wherein the flat partition plate is composed of a plurality of flat partition plate pieces, and a groove portion for fitting the upper end of the pillar is formed on the lower surface of the flat partition plate piece, In addition, the groove portions of two or more flat partition plates are fitted to the upper end of one pillar.
另外，鐵皮中之設置有上壁部的部分的直徑可比設置有下壁部的部分的直徑大，且下壁部的水平方向的寬度可比上壁部的水平方向的寬度窄。 In addition, the diameter of the portion where the upper wall portion is provided in the iron sheet may be larger than the diameter of the portion where the lower wall portion is provided, and the horizontal width of the lower wall portion may be narrower than the horizontal width of the upper wall portion.
根據本發明，可減低製造成本。 According to the present invention, manufacturing costs can be reduced.
10、110‧‧‧蓄熱室 10, 110‧‧‧regenerator
12、102‧‧‧爐床 12, 102‧‧‧hearth
14‧‧‧錨定螺栓 14‧‧‧Anchor bolt
20、112‧‧‧外壁 20、112‧‧‧Outer wall
20a‧‧‧送風口 20a‧‧‧Air outlet
20b‧‧‧排氣口 20b‧‧‧Exhaust
22、210‧‧‧鐵皮 22, 210
24、232‧‧‧外壁磚塊 24、232‧‧‧Outer brick
24a‧‧‧拱形磚塊 24a‧‧‧Arch brick
30、450‧‧‧支柱 30, 450 ‧ ‧ ‧ pillar
40‧‧‧橫樑 40‧‧‧beam
50、114、500‧‧‧平隔板 50, 114, 500 ‧‧‧ flat partition
100‧‧‧熱風爐 100‧‧‧Hot air stove
104‧‧‧錨定螺栓 104‧‧‧Anchor bolt
112a‧‧‧送風口(貫通孔) 112a‧‧‧Air supply port (through hole)
112b‧‧‧排氣口(貫通孔) 112b‧‧‧Exhaust port (through hole)
116‧‧‧格子磚 116‧‧‧ Checker brick
120‧‧‧燃燒室 120‧‧‧combustion chamber
122‧‧‧外筒 122‧‧‧Outer cylinder
122a‧‧‧送出口 122a‧‧‧Export
122b‧‧‧燃料氣體管 122b‧‧‧fuel gas pipe
122c‧‧‧空氣管 122c‧‧‧Air pipe
124‧‧‧燃燒器 124‧‧‧Burner
130‧‧‧連通管 130‧‧‧Connecting pipe
212‧‧‧小徑部 212‧‧‧ Small diameter part
214‧‧‧擴徑部 214‧‧‧Expansion Department
216‧‧‧大徑部 216‧‧‧ Major Diameter Department
220‧‧‧下壁部 220‧‧‧Lower wall
230‧‧‧上壁部 230‧‧‧Upper wall
300‧‧‧第一支持構造 300‧‧‧ First support structure
310‧‧‧第一本體 310‧‧‧The first body
312‧‧‧上表面(第一載置面) 312‧‧‧Upper surface (first placement surface)
320‧‧‧第一支持部 320‧‧‧ First Support Department
400‧‧‧第二支持構造 400‧‧‧Second support structure
402‧‧‧上表面(第二載置面) 402‧‧‧Upper surface (second placement surface)
450‧‧‧支柱 450‧‧‧ Pillar
452‧‧‧開口 452‧‧‧ opening
500a~500c‧‧‧平隔板片 500a ~ 500c‧‧‧flat separator
510‧‧‧上表面 510‧‧‧upper surface
520‧‧‧凹槽部 520‧‧‧groove
530‧‧‧凹陷部 530‧‧‧Depression
532‧‧‧突出部 532‧‧‧Projection
B‧‧‧基礎 B‧‧‧Basic
D1、Da、Db‧‧‧內徑 D1, Da, Db‧‧‧ ID
D2‧‧‧直徑 D2‧‧‧Diameter
Wa、Wb‧‧‧厚度 Wa, Wb‧‧‧thickness
第1圖係說明熱風爐之圖。 Figure 1 is a diagram illustrating a hot blast stove.
第2圖係說明以往的蓄熱室之圖。 FIG. 2 is a diagram illustrating a conventional regenerator.
第3圖係說明實施形態的蓄熱室之圖。 Fig. 3 is a diagram illustrating the heat storage chamber of the embodiment.
第4圖係說明實施形態的蓄熱室的內徑與以往的蓄熱室的內徑之圖。 FIG. 4 is a diagram illustrating the inner diameter of the heat storage chamber of the embodiment and the inner diameter of the conventional heat storage chamber.
第5圖係說明平隔板之圖。 Figure 5 is a diagram illustrating a flat partition.
以下，參照隨附的圖式來詳細說明本發明之一實施形態。所說明的實施形態中揭示的尺寸、材料、其他具體的數值等，只是為了讓人容易理解所舉的例子而已， 除非是特別指明，否則都不是用來限定本發明的。另外，在本說明書及圖式中，將具有實質相同的功能、構成之元件都標以相同的符號，藉此省略掉重複的說明，另外也省略了與本發明沒有直接關係的元件的圖示。 Hereinafter, an embodiment of the present invention will be described in detail with reference to the accompanying drawings. The dimensions, materials, and other specific numerical values disclosed in the described embodiments are only for the sake of easy understanding of the examples given. Unless otherwise specified, it is not intended to limit the invention. In addition, in this specification and the drawings, components having substantially the same function and configuration are marked with the same symbols, thereby omitting duplicate descriptions, and omitting illustrations of components not directly related to the present invention .
第1圖係說明熱風爐100之圖。另外，第1圖中，以實線的箭號表示熱風、空氣(冷風)、燃料氣體、燃燒排放氣體等氣體的流動。如第1圖所示，熱風爐100係包含蓄熱室110及燃燒室120。本實施形態之熱風爐100係為將蓄熱室110與燃燒室120分別獨立構成之外燃式熱風爐。 FIG. 1 is a diagram illustrating the hot blast stove 100. In addition, in the first figure, the flow of gases such as hot air, air (cold air), fuel gas, and combustion exhaust gas is indicated by solid arrows. As shown in FIG. 1, the hot blast stove 100 includes a heat storage chamber 110 and a combustion chamber 120. The hot blast stove 100 of the present embodiment is an external combustion type hot blast stove in which the heat storage chamber 110 and the combustion chamber 120 are independently constituted.
熱風爐100係製造送出到未圖示的高爐之熱風(例如1200℃左右)之裝置。熱風爐100交互地進行：使燃料氣體在燃燒室120內燃燒而蓄熱至蓄熱室110之蓄熱程序與將在蓄熱室110進行熱交換後得到的熱風送到高爐之送風程序。一般而言，會相對於一座高爐設置有例如3~4台的熱風爐100，複數台熱風爐100交互地切換進行蓄熱程序及送風程序，以連續地將熱風送入高爐。 The hot blast stove 100 is a device for manufacturing hot blast (for example, about 1200 ° C) sent to a blast furnace (not shown). The hot blast stove 100 alternately performs a heat storage process of burning fuel gas in the combustion chamber 120 and storing heat to the heat storage chamber 110 and a blowing process of sending hot air obtained by heat exchange in the heat storage chamber 110 to the blast furnace. Generally speaking, for example, 3 to 4 hot blast furnaces 100 are provided with respect to one blast furnace, and a plurality of hot blast furnaces 100 alternately switch between a heat storage program and an air supply program to continuously send hot air into the blast furnace.
蓄熱室110係設在基礎B之上。蓄熱室110係包含外壁112、平隔板114、以及格子磚116。 The regenerator 110 is provided on the foundation B. The heat storage chamber 110 includes an outer wall 112, a flat partition 114, and a lattice brick 116.
外壁112係為軸為鉛直方向之圓筒形狀。外壁112的上部係經由連通管130而與燃燒室120的上部連通。在外壁112的下部，形成有送風口112a及排氣口112b。外壁112的詳細內容將在後面說明。 The outer wall 112 has a cylindrical shape whose axis is in the vertical direction. The upper part of the outer wall 112 communicates with the upper part of the combustion chamber 120 via the communication tube 130. In the lower part of the outer wall 112, an air supply port 112a and an exhaust port 112b are formed. The details of the outer wall 112 will be described later.
平隔板114係耐熱鑄鋼製或耐熱鑄鐵製，且 為形成有複數個孔之圓板狀的構造體。平隔板114係以向水平方向延伸之方式設於外壁112內。外壁112的內部空間在鉛直方向由平隔板114分隔為二。平隔板114係設於送風口112a及排氣口112b的上方。換言之，外壁112的內部空間之中藉由平隔板114所分隔出的下方的空間(以下稱為「下方空間」)與送風口112a及排氣口112b係相連通。 The flat partition 114 is made of heat-resistant cast steel or heat-resistant cast iron, and It is a disk-shaped structure in which a plurality of holes are formed. The flat partition 114 is provided in the outer wall 112 so as to extend in the horizontal direction. The inner space of the outer wall 112 is divided into two by the flat partition 114 in the vertical direction. The flat partition 114 is provided above the air supply port 112a and the exhaust port 112b. In other words, the lower space partitioned by the flat partition 114 (hereinafter referred to as "lower space") in the internal space of the outer wall 112 communicates with the air supply port 112a and the exhaust port 112b.
複數個格子磚116係向鉛直方向堆疊在平隔板114上。換言之，格子磚116係堆疊於外壁112的內部空間之中藉由平隔板114所分隔出的上方的空間(以下稱為「上方空間」)。格子磚116的堆疊高度係在例如30m左右。格子磚116在後述的蓄熱程序中蓄積從燃燒室120供給到蓄熱室110之燃燒排放氣體的熱(燃燒熱)。另外，格子磚116在後述的送風程序中利用蓄積的熱使冷風加熱而產生熱風。換言之，格子磚116具有熱交換功能。 A plurality of checker bricks 116 are stacked on the flat partition 114 in the vertical direction. In other words, the lattice brick 116 is stacked in the upper space partitioned by the flat partition 114 in the inner space of the outer wall 112 (hereinafter referred to as "upper space"). The stacking height of the lattice brick 116 is about 30 m, for example. The checker brick 116 accumulates the heat (combustion heat) of the combustion exhaust gas supplied from the combustion chamber 120 to the heat storage chamber 110 in the heat storage procedure described later. In addition, the grid brick 116 heats the cold wind by the accumulated heat in the air blowing procedure described later, and generates hot wind. In other words, the lattice brick 116 has a heat exchange function.
燃燒室120係併設於蓄熱室110的側邊。燃燒室120係包含外筒122以及燃燒器124。外筒122為圓筒形狀。外筒122的上部經由連通管130而與蓄熱室110的外壁112的上部連通。在外筒122中之連通管130的連接處的下方，形成有送出口122a。 The combustion chamber 120 is provided on the side of the regenerator 110 in parallel. The combustion chamber 120 includes an outer cylinder 122 and a burner 124. The outer cylinder 122 has a cylindrical shape. The upper part of the outer cylinder 122 communicates with the upper part of the outer wall 112 of the heat storage chamber 110 via the communication tube 130. Below the connection of the communication tube 130 in the outer cylinder 122, a delivery port 122a is formed.
燃燒器124係設於外筒122內的下部(送出口122a的下方)。在外筒122的下部連接有燃料氣體管122b及空氣管122c。從燃料氣體管122b供給來的燃料氣體被導入到燃燒器124。從空氣管122c供給來的空氣被導入到 燃燒器124。燃燒器124利用空氣使燃料氣體燃燒而產生燃燒排放氣體。 The burner 124 is provided in the lower part of the outer cylinder 122 (below the delivery port 122a). A fuel gas pipe 122b and an air pipe 122c are connected to the lower portion of the outer cylinder 122. The fuel gas supplied from the fuel gas pipe 122b is introduced into the burner 124. The air supplied from the air pipe 122c is introduced into Burner 124. The burner 124 uses air to burn fuel gas to generate combustion exhaust gas.
接著，針對上述熱風爐100的動作進行說明。如上述的熱風爐100，係以交互地重複進行蓄熱程序及送風程序之方式動作。 Next, the operation of the hot blast stove 100 will be described. As described above, the hot blast stove 100 operates by alternately repeating the heat storage process and the air supply process.
首先，在蓄熱程序，燃燒室120的燃燒器124利用從空氣管122c供給來的燃燒用的空氣使從燃料氣體管122b供給來的燃料氣體燃燒而產生燃燒排放氣體。在燃燒室120得到的高溫的燃燒排放氣體(例如1300℃~1400℃左右)，係從燃燒室120的上部通過連通管130而送出到蓄熱室110。燃燒排放氣體係從蓄熱室110的上部往下部流動。在燃燒排放氣體的通過過程中，藉由燃燒排放氣體與格子磚116進行熱交換，格子磚116因而加熱，燃燒排放氣體因而冷卻。以此方式，使燃燒排放氣體所具有的燃燒熱蓄積到格子磚116。然後，通過平隔板114之燃燒排放氣體係通過排氣口112b而排放到外部(例如煙囪)。 First, in the heat storage process, the burner 124 of the combustion chamber 120 uses the combustion air supplied from the air pipe 122c to burn the fuel gas supplied from the fuel gas pipe 122b to generate combustion exhaust gas. The high-temperature combustion exhaust gas (for example, about 1300 ° C. to 1400 ° C.) obtained in the combustion chamber 120 is sent from the upper portion of the combustion chamber 120 through the communication pipe 130 to the heat storage chamber 110. The combustion exhaust gas system flows from the upper part to the lower part of the regenerator 110. During the passage of the combustion exhaust gas, the combustion exhaust gas exchanges heat with the grid brick 116, the grid brick 116 is thereby heated, and the combustion exhaust gas is thereby cooled. In this way, the heat of combustion possessed by the combustion exhaust gas is accumulated in the lattice brick 116. Then, the combustion exhaust gas system passing through the flat partition 114 is discharged to the outside (for example, a chimney) through the exhaust port 112b.
然後，在送風程序，使燃燒室120的燃燒器124停止。並且，經由蓄熱室110的送風口112a，從外部將空氣(冷風，例如200℃左右的空氣)送入到蓄熱室110內。冷風係從蓄熱室110的下部往上部流動。在冷風的通過過程中，藉由冷風與格子磚116進行熱交換，冷風因而加熱而成為熱風(例如1200℃左右)，格子磚116因而冷卻。如上述而產生的熱風係通過連通管130、燃燒室120，經由送出口122a而送出到高爐。 Then, in the blowing process, the burner 124 of the combustion chamber 120 is stopped. Then, air (cold air, for example, air of about 200 ° C.) is sent into the heat storage chamber 110 from the outside through the air outlet 112 a of the heat storage chamber 110. The cold air system flows from the lower part to the upper part of the heat storage chamber 110. During the passing of the cold air, the cold air exchanges heat with the lattice brick 116, and the cold air is heated to become hot air (for example, about 1200 ° C), and the lattice brick 116 is cooled. The hot air generated as described above passes through the communication pipe 130 and the combustion chamber 120, and is sent out to the blast furnace through the delivery port 122a.
第2圖係說明以往的蓄熱室10之圖。第2圖(a)係蓄熱室10的鉛直斷面的概略圖。第2圖(b)係第2圖(a)中的IIb箭號方向視圖。另外，第2圖(a)、第2圖(b)中，為了讓人容易理解，只顯示蓄熱室10的下部。另外，第2圖(b)中省略了鐵皮22。 FIG. 2 is a diagram illustrating a conventional heat storage chamber 10. FIG. 2 (a) is a schematic view of the vertical cross section of the regenerator 10. Figure 2 (b) is the arrow direction view of IIb in Figure 2 (a). In addition, in FIGS. 2 (a) and 2 (b), for ease of understanding, only the lower part of the heat storage chamber 10 is shown. In addition, in FIG. 2 (b), the iron sheet 22 is omitted.
如第2圖(a)所示，以往的蓄熱室10係包含外壁20、支柱30、橫樑(beam)40、以及平隔板50。蓄熱室10中，會有1200℃以上的熱風及燃燒排放氣體之類的高溫的氣體通過，將格子磚的上部加熱到1400℃左右。因此，外壁20形成為圓筒形狀的鐵皮22與外壁磚塊24之二層構造。如第2圖(a)所示，外壁磚塊24係配置於鐵皮22的內側。外壁磚塊24係從爐床12開始向鉛直方向堆疊。 As shown in FIG. 2 (a), the conventional heat storage chamber 10 includes an outer wall 20, a pillar 30, a beam 40, and a flat partition 50. In the regenerator 10, high-temperature gas such as hot air above 1200 ° C and combustion exhaust gas passes through, and the upper part of the lattice brick is heated to about 1400 ° C. Therefore, the outer wall 20 is formed into a two-layer structure of a cylindrical iron skin 22 and an outer wall brick 24. As shown in FIG. 2 (a), the outer wall bricks 24 are arranged inside the iron skin 22. The outer wall bricks 24 are stacked vertically from the hearth 12.
因此，如第2圖(b)所示，外壁磚塊24之中，形成送風口20a及排氣口20b之拱形磚塊24a(送風口20a及排氣口20b的周圍的外壁磚塊24)係與其他的外壁磚塊24不同，必須進行局部的加工。因此，拱形磚塊24a的加工工時變多，施工工時也變多，造成了高成本化。另外，位於上方之外壁磚塊24的荷重會作用於拱形磚塊24a。因此，會有拱形磚塊24a崩塌，且使外壁磚塊24因而崩塌之虞。尤其，排氣口20b在外壁20係設有兩個且兩者相接近。因此，會有形成排氣口20b之拱形磚塊24a崩塌之可能性。 Therefore, as shown in FIG. 2 (b), among the outer wall bricks 24, the arched bricks 24a (the outer wall bricks 24 around the air outlets 20a and the exhaust ports 20b) forming the air outlet 20a and the air outlet 20b ) Is different from other outer wall bricks 24 and must be processed locally. Therefore, the processing time of the arch brick 24a increases, and the construction time also increases, resulting in a high cost. In addition, the load of the outer wall brick 24 located above will act on the arch brick 24a. Therefore, the arched brick 24a may collapse, and the outer wall brick 24 may collapse. In particular, two exhaust ports 20b are provided on the outer wall 20 and they are close to each other. Therefore, there is a possibility that the arched brick 24a forming the exhaust port 20b collapses.
另外，以往的蓄熱室10係利用支柱30及橫樑40來支持平隔板50。具體來說，係在爐床12豎立複數個支柱30，並將向水平方向延伸之橫樑40橫跨架設在複 數個支柱30上。然後，使平隔板50被支持在橫樑40上。平隔板50係分割為複數個(例如20~30個)平隔板片。將複數個平隔板片在外壁20內組裝成平隔板50。因此，會由於蓄熱程序及送風程序之重複進行，使得平隔板片相互間、平隔板50與橫樑40之間、橫樑40與支柱30之間相互移動，而有平隔板50及堆疊於平隔板50上之格子磚崩塌之虞。 In addition, the conventional regenerator 10 system supports the flat partition plate 50 using the pillar 30 and the beam 40. Specifically, a plurality of pillars 30 are erected on the hearth 12, and a beam 40 extending horizontally is erected across the complex Several pillars 30. Then, the flat partition 50 is supported on the beam 40. The flat partition 50 is divided into a plurality (for example, 20 to 30) flat partition pieces. A plurality of flat baffle pieces are assembled in the outer wall 20 to form a flat baffle 50. Therefore, due to the repetition of the heat storage process and the air supply process, the flat partition plates move between each other, between the flat partition 50 and the beam 40, and between the beam 40 and the pillar 30, and there are flat partitions 50 and stacked The grid bricks on the flat partition 50 may collapse.
另外，係在送風口20a及排氣口20b的中心軸的軌跡上設置支柱30。如此的軌跡上的支柱30之中之特別是支持平隔板50的外緣之支柱30，會在送風程序或蓄熱程序受到氣體直接衝擊，而承受到氣體所造成的阻力。因此，必須在支柱30設置抑振裝置。而且，在從蓄熱程序切換到送風程序之際，從送風口20a導入的冷風會達到音速。因此，必須要有向水平方向支持送風口20a附近的支柱30之機構。 In addition, the pillar 30 is provided on the locus of the central axis of the air outlet 20a and the air outlet 20b. Among the pillars 30 on such a trajectory, especially the pillars 30 that support the outer edge of the flat partition 50, they will be directly impacted by the gas during the air supply process or the heat storage process, and bear the resistance caused by the gas. Therefore, it is necessary to install a vibration suppression device on the pillar 30. Moreover, when switching from the heat storage program to the air blowing program, the cold air introduced from the air blowing port 20a reaches the speed of sound. Therefore, it is necessary to have a mechanism for supporting the pillar 30 near the air outlet 20a in the horizontal direction.
又，送風程序時的送風壓係作用於蓄熱室10的內部。因此，會有浮升力(uplift)(鉛直上方向的荷重)作用於設在鐵皮22之錨定螺栓(anchor bolt)14。例如，在設置於4000m3以上的大型的高爐之熱風爐中作用的浮升力係在3000~4000噸左右。另外，在地震之際，則會有水平方向的荷重作用於外壁磚塊24及格子磚。由於此水平力(水平方向的荷重)而使得有傾覆力矩作用於蓄熱室10的爐底，而且，除了上述的浮升力之外，還會有由於傾覆力矩而造成的拉拔力作用於錨定螺栓14。因此，錨定螺栓14 的栓徑必須在70mm以上，而且必須設置60根以上的錨定螺栓14。 In addition, the blowing pressure during the blowing process acts inside the regenerator 10. Therefore, an uplift (a vertical upward load) acts on the anchor bolt 14 provided on the iron sheet 22. For example, the buoyant force acting in a hot blast furnace of a large blast furnace installed above 4000 m 3 is about 3000 to 4000 tons. In addition, in the event of an earthquake, horizontal loads will act on the outer wall bricks 24 and the lattice bricks. Due to this horizontal force (horizontal load), a tilting moment acts on the bottom of the regenerator 10, and in addition to the above-mentioned buoyancy, there is also a pulling force due to the tilting moment acting on the anchor Bolt 14. Therefore, the bolt diameter of the anchor bolt 14 must be 70 mm or more, and more than 60 anchor bolts 14 must be provided.
因此，本實施形態的蓄熱室110係藉由在外壁112的構造下工夫來減低製造成本。第3圖係說明本實施形態的蓄熱室110之圖。另外，第3圖中，為了讓人容易理解，只顯示出蓄熱室110的下部。 Therefore, the heat storage chamber 110 of this embodiment reduces the manufacturing cost by working on the structure of the outer wall 112. FIG. 3 is a diagram illustrating the heat storage chamber 110 of this embodiment. In addition, in FIG. 3, for easy understanding, only the lower part of the heat storage chamber 110 is shown.
如第3圖所示，本實施形態的蓄熱室110係包含外壁112、第一支持構造300、第二支持構造400、支柱450、以及平隔板114。 As shown in FIG. 3, the heat storage chamber 110 of this embodiment includes an outer wall 112, a first support structure 300, a second support structure 400, a pillar 450 and a flat partition 114.
外壁112係包含鐵皮210、下壁部220、以及上壁部230。鐵皮210係為圓筒形狀。鐵皮210具有小徑部212、擴徑部214、以及大徑部216。小徑部212位於鉛直方向最下方。在小徑部212形成有送風口112a及排氣口112b。擴徑部214係延續至小徑部212的上方。擴徑部214的直徑(內徑及外徑)係從鉛直下方往鉛直上方逐漸增大。大徑部216係延續至擴徑部214的上方。 The outer wall 112 includes an iron skin 210, a lower wall 220, and an upper wall 230. The iron sheet 210 is cylindrical. The iron skin 210 has a small diameter portion 212, an enlarged diameter portion 214, and a large diameter portion 216. The small diameter portion 212 is located at the bottom in the vertical direction. The small-diameter portion 212 is formed with a blower port 112a and an exhaust port 112b. The enlarged diameter portion 214 continues above the small diameter portion 212. The diameter (inner diameter and outer diameter) of the enlarged diameter portion 214 gradually increases from vertically downward to vertically upward. The large diameter portion 216 continues above the enlarged diameter portion 214.
下壁部220係沿著小徑部212的內側而設置。下壁部220係為圓筒形狀。下壁部220係以可鑄耐火物(不定形耐火物、耐火混凝土)構成。可鑄耐火物係將結合材調配到使耐火物粉碎而得到的骨材中所成者。可鑄耐火物係為未進行燒成且可在現場施工之耐火物。在下壁部220，形成有一個送風口112a(貫通孔)及兩個排氣口112b(貫通孔)。 The lower wall portion 220 is provided along the inside of the small-diameter portion 212. The lower wall portion 220 has a cylindrical shape. The lower wall portion 220 is made of castable refractory (unshaped refractory, refractory concrete). The castable refractory system is prepared by blending the bonding material into the aggregate obtained by crushing the refractory material. Castable refractory materials are refractory materials that have not been fired and can be constructed on site. In the lower wall portion 220, one blower port 112a (through hole) and two exhaust ports 112b (through hole) are formed.
利用不定形的可鑄耐火物來構成下壁部220， 就不需要用以形成送風口112a及排氣口112b之專用的拱形磚塊。因此，可削減專用的拱形磚塊的加工及磚塊疊砌工時及成本。 The lower wall portion 220 is formed by an indefinite castable refractory, There is no need for a dedicated arched brick for forming the air supply port 112a and the exhaust port 112b. Therefore, it is possible to reduce the processing time and cost of dedicated arch bricks and brick stacking.
上壁部230係沿著大徑部216的內側而設置。上壁部230係為圓筒形狀。上壁部230係由複數個外壁磚塊232向鉛直方向堆疊而構成。上壁部230(外壁磚塊232)係載置於後述的第一本體310的上表面312。 The upper wall portion 230 is provided along the inside of the large-diameter portion 216. The upper wall portion 230 has a cylindrical shape. The upper wall portion 230 is formed by stacking a plurality of outer wall bricks 232 in the vertical direction. The upper wall portion 230 (outer wall brick 232) is placed on the upper surface 312 of the first body 310 described later.
第一支持構造300係具有第一本體310以及第一支持部320(第一連接部)。第一本體310係為從鐵皮210的內側突出之環形的板構件。第一本體310的外緣(第一連接部)係連接至擴徑部214與大徑部216的交界。第一本體310係以上表面312(第一載置面)成為水平之方式連接至鐵皮210。上壁部230中之位於最下層的外壁磚塊232載置於上表面312上。第一支持部320係為向鉛直方向延伸之板構件(rib，肋板)。第一支持部320係在鐵皮210的圓周方向設置複數個。第一支持部320將第一本體310的下表面與擴徑部214連接。第一本體310及第一支持部320係藉由例如熔接而連接至鐵皮210。 The first support structure 300 has a first body 310 and a first support portion 320 (first connection portion). The first body 310 is an annular plate member protruding from the inside of the iron sheet 210. The outer edge (first connection portion) of the first body 310 is connected to the boundary between the enlarged diameter portion 214 and the large diameter portion 216. The first body 310 is connected to the iron sheet 210 such that the upper surface 312 (first placement surface) becomes horizontal. The outermost wall brick 232 of the upper wall part 230 is placed on the upper surface 312. The first support portion 320 is a plate member (rib) extending in the vertical direction. The first support portion 320 is provided in plural in the circumferential direction of the iron sheet 210. The first support portion 320 connects the lower surface of the first body 310 to the enlarged diameter portion 214. The first body 310 and the first support portion 320 are connected to the iron sheet 210 by, for example, welding.
藉由具備第一支持構造300之構成，可使上壁部230(外壁磚塊232)的荷重作用於鐵皮210。因而，可避免發生位於上壁部230的下方之下壁部220(送風口112a、排氣口112b)破損(崩塌)之事態。藉此，可謀求熱風爐100的長壽命化。 With the configuration including the first support structure 300, the load of the upper wall portion 230 (outer wall brick 232) can be applied to the iron skin 210. Therefore, it is possible to avoid a situation where the lower wall portion 220 (air supply port 112a, exhaust port 112b) located below the upper wall portion 230 is damaged (collapsed). With this, the life of the hot blast stove 100 can be increased.
接著，針對蓄熱室110的內徑，亦即收容格 子磚116之內部空間的直徑進行說明。第4圖係說明本實施形態的蓄熱室110的內徑與以往的蓄熱室10的內徑之圖。第4圖(a)顯示本實施形態的蓄熱室110，第4圖(b)顯示以往的蓄熱室10。 Next, regarding the inner diameter of the regenerator 110, that is, the storage compartment The diameter of the internal space of the sub-brick 116 will be described. FIG. 4 is a diagram illustrating the inner diameter of the heat storage chamber 110 of the present embodiment and the inner diameter of the conventional heat storage chamber 10. FIG. 4 (a) shows the heat storage chamber 110 of the present embodiment, and FIG. 4 (b) shows the conventional heat storage chamber 10.
外壁磚塊24,232係為了保護鐵皮22、210不受達到1400℃左右的高溫之格子磚116影響而設置。因此，外壁磚塊232的厚度(水平方向的寬度)Wa與外壁磚塊24的厚度Wa，係由格子磚116的溫度(或者蓄熱室110的上部的溫度)所決定，且實質相等。外壁磚塊232(上壁部230)的厚度Wa及外壁磚塊24的厚度Wa係在例如500mm以上800mm以下。 The outer wall bricks 24 and 232 are provided to protect the iron skins 22 and 210 from the lattice bricks 116 that reach a high temperature of about 1400 ° C. Therefore, the thickness Wa of the outer wall brick 232 (width in the horizontal direction) and the thickness Wa of the outer wall brick 24 are determined by the temperature of the lattice brick 116 (or the temperature of the upper portion of the regenerator 110) and are substantially equal. The thickness Wa of the outer wall brick 232 (upper wall portion 230) and the thickness Wa of the outer wall brick 24 are, for example, 500 mm or more and 800 mm or less.
如上述，以往的蓄熱室10係將外壁磚塊24向鉛直方向從爐床12堆疊到塔頂。因此，蓄熱室10的內徑D1成為鐵皮22的內徑Da-2Wa。換言之，在以往的蓄熱室10，格子磚116的設置面積成為((Da-2Wa)/2)2π。 As described above, the conventional heat storage chamber 10 stacks the outer wall bricks 24 from the hearth 12 to the top of the tower in the vertical direction. Therefore, the inner diameter D1 of the heat storage chamber 10 becomes the inner diameter Da-2Wa of the iron skin 22. In other words, in the conventional heat storage chamber 10, the installation area of the lattice brick 116 becomes ((Da-2Wa) / 2) 2 π.
另一方面，本實施形態的蓄熱室110則是以可鑄耐火物來構成下壁部220。配置有下壁部220的下部空間因為只有已被格子磚116吸走熱之燃燒排放氣體及冷風通過，所以為200℃~350℃左右的低溫。因此，下壁部220的厚度Wb在75mm以上100mm以下即足夠。所以，可將下壁部220的厚度Wb設得比上壁部230(外壁磚塊232)的厚度Wa薄。 On the other hand, in the heat storage chamber 110 of this embodiment, the lower wall portion 220 is formed of castable refractory. The lower space in which the lower wall portion 220 is arranged passes only the combustion exhaust gas and cold air that have been absorbed by the grid brick 116, so it is at a low temperature of about 200 ° C to 350 ° C. Therefore, it is sufficient that the thickness Wb of the lower wall portion 220 is 75 mm or more and 100 mm or less. Therefore, the thickness Wb of the lower wall portion 220 can be set thinner than the thickness Wa of the upper wall portion 230 (outer wall brick 232).
此處，在將蓄熱室10改建而製造新的蓄熱室110之情況，大多會將鐵皮22的下部予以再利用。具體來 說，鐵皮22的上部因為曝露在1200℃以上的高溫下，所以劣化會很嚴重。相對於此，鐵皮22的下部因為是在200℃~350℃左右的低溫環境下，所以幾乎不會劣化。因此，鐵皮22的下部可作為小徑部212而再利用。 Here, when the heat storage chamber 10 is rebuilt and a new heat storage chamber 110 is manufactured, the lower portion of the iron sheet 22 is often reused. Specifically It is said that the upper part of the iron sheet 22 is exposed to a high temperature of more than 1200 ° C, so the deterioration will be severe. On the other hand, since the lower part of the iron sheet 22 is in a low-temperature environment of about 200 ° C to 350 ° C, it hardly deteriorates. Therefore, the lower portion of the iron skin 22 can be reused as the small-diameter portion 212.
在此情況，小徑部212的內徑係與蓄熱室10的鐵皮22的內徑Da相等，下部空間的直徑D2則成為小徑部212的內徑Da-2Wb。另外，若可維持如此的直徑D2而形成上部空間(亦即，若可使蓄熱室110的內徑成為D2)，就可擴大格子磚116的設置面積。 In this case, the inner diameter of the small-diameter portion 212 is equal to the inner diameter Da of the iron skin 22 of the heat storage chamber 10, and the diameter D2 of the lower space becomes the inner diameter Da-2Wb of the small-diameter portion 212. In addition, if such a diameter D2 can be maintained to form an upper space (that is, if the inner diameter of the heat storage chamber 110 can be set to D2), the installation area of the lattice brick 116 can be enlarged.
因此，大徑部216係設計成可維持直徑D2而堆疊外壁磚塊232之大小。換言之，大徑部216的內徑Db係以使下述式(1)成立之方式設計。 Therefore, the large-diameter portion 216 is designed to maintain the diameter D2 while stacking the size of the outer wall bricks 232. In other words, the inner diameter Db of the large-diameter portion 216 is designed such that the following formula (1) is established.
大徑部的內徑Db=直徑D2+2Wa=小徑部212的內徑Da-2Wb+2Wa...式(1) The inner diameter of the large-diameter portion Db = diameter D2 + 2Wa = the inner diameter of the small-diameter portion 212 Da-2Wb + 2Wa ... Equation (1)
因此，可使蓄熱室110的內徑成為比以往的蓄熱室10的內徑D1大之D2。如此一來，即使在收容與以往的蓄熱室10相等容積的格子磚116時(亦即，即使具有與以往的蓄熱室10相等的蓄熱性能)，仍可使蓄熱室110的高度比蓄熱室10低。 Therefore, the inner diameter of the heat storage chamber 110 can be made larger than the inner diameter D1 of the conventional heat storage chamber 10 by D2. In this way, even when the lattice brick 116 having the same volume as the conventional heat storage chamber 10 is accommodated (that is, even if it has the same heat storage performance as the conventional heat storage chamber 10), the height of the heat storage chamber 110 can be made higher low.
回到第3圖進行說明，第二支持構造400係為從鐵皮210的內側向水平方向突出之板構件(托架，bracket)。第二支持構造400的基端部(第二連接部)係連接至小徑部212。在本實施形態中，第二支持構造400係與下壁部220的上端接觸而連接至小徑部212。第二支持構 造400藉由例如熔接而連接至鐵皮210。第二支持構造400以上表面402(第二載置面)成為水平之方式連接至鐵皮210。平隔板114載置於上表面402。第二支持構造400係在鐵皮210的圓周方向設置複數個。另外，因為平隔板114的溫度成為200℃~350℃左右，所以會沿著擴徑部214的內側設置以可鑄耐火物構成之壁部(75mm以上100mm以下)。 Referring back to FIG. 3, the second support structure 400 is a plate member (bracket) that protrudes horizontally from the inside of the iron sheet 210. The base end portion (second connection portion) of the second support structure 400 is connected to the small diameter portion 212. In the present embodiment, the second support structure 400 is in contact with the upper end of the lower wall portion 220 to be connected to the small-diameter portion 212. Second support structure The fabric 400 is connected to the iron sheet 210 by, for example, welding. The second support structure 400 is connected to the iron skin 210 such that the upper surface 402 (second placement surface) becomes horizontal. The flat partition 114 is placed on the upper surface 402. The second support structure 400 is provided in plural in the circumferential direction of the iron sheet 210. In addition, since the temperature of the flat partition plate 114 is about 200 ° C to 350 ° C, a wall portion (75 mm or more and 100 mm or less) made of castable refractory material is provided along the inside of the enlarged diameter portion 214.
支柱450係豎立於爐床102。支柱450為圓筒形狀。平隔板114固定在支柱450上。換言之，平隔板114係由第二支持構造400及支柱450加以支持。 The pillar 450 is erected on the hearth 102. The pillar 450 has a cylindrical shape. The flat partition 114 is fixed to the pillar 450. In other words, the flat partition 114 is supported by the second support structure 400 and the pillar 450.
第5圖係說明平隔板114之圖。第5圖(a)係第二支持構造400、支柱450的平面圖。第5圖(b)係說明平隔板片500b,500c及支柱450之圖。第5圖(c)係說明局部的平隔板片500a,500b之圖。另外，第5圖(a)中，為了讓人容易理解，以虛線表示第二支持構造400及支柱450。 FIG. 5 is a diagram illustrating the flat partition 114. Fig. 5 (a) is a plan view of the second support structure 400 and the pillar 450. FIG. 5 (b) is a diagram illustrating the flat partition plates 500b, 500c and the pillar 450. Fig. 5 (c) is a diagram illustrating partial flat baffle sheets 500a, 500b. In addition, in FIG. 5 (a), for easy understanding, the second support structure 400 and the pillar 450 are shown by broken lines.
如第5圖(a)所示，平隔板114為圓板形狀。平隔板114由複數個(此處為31個)平隔板片500a,500b,500c所構成。具體來說，六角形的平隔板片500a係於中央配置1片。而且，五角形的平隔板片500b係於六角形的平隔板片500a的外周配置12片。並且，四角形(詳言之其一邊為圓弧)的平隔板片500c係於五角形的平隔板片500b的外周配置18片。平隔板片500a~500c的厚度係實質相等。 As shown in FIG. 5 (a), the flat partition 114 has a circular plate shape. The flat partition 114 is composed of a plurality of (here 31) flat partition pieces 500a, 500b, 500c. Specifically, one hexagonal flat partition sheet 500a is placed in the center. Moreover, 12 pentagonal flat separator sheets 500b are arranged on the outer periphery of the hexagonal flat separator sheets 500a. In addition, 18 flat plates 500c of a quadrangular shape (more specifically, one side of which is an arc) are arranged on the outer periphery of the flat plates 500b of a pentagonal shape. The thickness of the flat partition sheets 500a to 500c is substantially equal.
形成平隔板114的外緣之四角形的平隔板片500c相互的交界(相接處)係由第二支持構造400加以支持。 另外，平隔板片500a與平隔板片500b之間、平隔板片500b與平隔板片500c之間、平隔板片500b相互之間、平隔板片500c相互之間的交界則是藉由複數根(此處為15根)支柱450加以支持。第二支持構造400及支柱450係對於第5圖(a)中以網線(cross hatching)表示的6片平隔板片500b以外的平隔板片500a~500c進行三點支持。 The boundary (joint) of the quadrangular flat partition plates 500c forming the outer edge of the flat partition 114 is supported by the second support structure 400. In addition, the boundary between the flat partition sheet 500a and the flat partition sheet 500b, between the flat partition sheet 500b and the flat partition sheet 500c, between the flat partition sheet 500b and between the flat partition sheet 500c It is supported by plural (in this case 15) pillars 450. The second support structure 400 and the pillar 450 provide three-point support to the flat partition sheets 500a to 500c other than the six flat partition sheets 500b indicated by cross hatching in FIG. 5 (a).
如第5圖(b)所示，在平隔板片500a~500c的下表面形成有凹槽部520。凹槽部520係形成於平隔板片500a~500c之中之與支柱450對應之處。平隔板片500a~500c係於凹槽部520嵌合支柱450的上端而由支柱450加以支持。換言之，使兩個以上的平隔板片500a~500c的凹槽部520嵌合於一個支柱450的上端。藉由具備凹槽部520之構成，可防止平隔板片500a~500c與支柱450之水平方向的相對移動。另外，凹槽部520係形成為：在平隔板片500a~500c由支柱450加以支持之際，平隔板片500a~500c的上表面510會成為齊平(水平)。 As shown in FIG. 5 (b), a groove portion 520 is formed on the lower surfaces of the flat partition sheets 500a to 500c. The groove portion 520 is formed in the flat partition plates 500a to 500c corresponding to the pillars 450. The flat partition plates 500a to 500c are fitted to the upper ends of the pillars 450 in the recesses 520 and supported by the pillars 450. In other words, the groove portions 520 of the two or more flat partition plates 500 a to 500 c are fitted to the upper end of one pillar 450. With the configuration provided with the recessed portion 520, the horizontal movement of the horizontal partition plates 500a to 500c and the pillar 450 can be prevented. In addition, the groove portion 520 is formed such that when the flat partition plates 500a to 500c are supported by the pillars 450, the upper surface 510 of the flat partition plates 500a to 500c becomes flush (horizontal).
又，如第5圖(b)所示，在支柱450的側面形成有複數個與內部空間相貫通之開口452。因此，可順利地將通過平隔板114之燃燒排放氣體導引到排氣口112b。而且，還可將從送風口112a供給來的冷風順利地導引到平隔板114(格子磚116)。因而，可減低燃燒排放氣體及冷風的壓力損失。 In addition, as shown in FIG. 5 (b), a plurality of openings 452 penetrating the internal space are formed on the side surface of the pillar 450. Therefore, the combustion exhaust gas passing through the flat partition 114 can be smoothly guided to the exhaust port 112b. Furthermore, the cold wind supplied from the air supply port 112a can be smoothly guided to the flat partition 114 (grid 116). Therefore, the pressure loss of combustion exhaust gas and cold air can be reduced.
又，如第5圖(c)所示，在以網線表示之6片平隔板片500b形成有向水平方向突出之突出部532。突出 部532的上表面係與平隔板片500b的上表面510齊平。另外，在平隔板片500a的外緣之中未由支柱450加以支持之處，係形成有向水平方向凹陷之凹陷部530。而且，在組裝平隔板片500a、500b之際，突出部532係嵌合於平隔板片500a的凹陷部530。因此，即使未另外再配置支柱450，也可對以網線表示之6片平隔板片500b進行三點支持。換言之，以網線表示之6片平隔板片500b係由2根支柱450及平隔板片500a進行三點支持。因此，可削減下方空間中成為氣體流動的阻礙之支柱450的數目。另外，凹陷部530及突出部532係以下述方式形成(機械加工)：在相互嵌合之際，平隔板片500a的上表面510與平隔板片500b的上表面510成為齊平(水平)。 Further, as shown in FIG. 5 (c), the six flat separator sheets 500b indicated by the mesh lines are formed with protrusions 532 that protrude in the horizontal direction. protruding The upper surface of the portion 532 is flush with the upper surface 510 of the flat partition sheet 500b. In addition, a recessed portion 530 recessed in the horizontal direction is formed in the outer edge of the flat partition sheet 500a that is not supported by the pillar 450. Moreover, when assembling the flat partition plates 500a and 500b, the protruding portion 532 is fitted into the recessed portion 530 of the flat partition plate 500a. Therefore, even if the pillar 450 is not additionally arranged, the six flat separator sheets 500b indicated by the network lines can be supported at three points. In other words, the six flat separator sheets 500b indicated by the net lines are supported at three points by the two pillars 450 and the flat separator sheets 500a. Therefore, it is possible to reduce the number of struts 450 that hinder the flow of gas in the space below. In addition, the concave portion 530 and the protruding portion 532 are formed (machined) in such a manner that, when they are fitted with each other, the upper surface 510 of the flat partition sheet 500a and the upper surface 510 of the flat partition sheet 500b become flush (horizontal ).
如此，利用第二支持構造400支持平隔板114(平隔板片500c)的外緣，可削減支柱450的數目。而且，還可削減會在送風程序及蓄熱程序受到氣體直接衝擊之以往設在平隔板114的外緣之支柱。因而，可省略抑振裝置及向水平方向支持支柱之機構。 In this way, the second support structure 400 supports the outer edge of the flat partition plate 114 (flat partition plate 500c), and the number of pillars 450 can be reduced. In addition, it is also possible to reduce the pillars provided on the outer edge of the flat partition 114, which would be directly impacted by the gas during the air supply process and the heat storage process. Therefore, the vibration suppression device and the mechanism for supporting the pillar in the horizontal direction can be omitted.
另外，藉由如上述之以第二支持構造400、支柱450、以及凹陷部530與突出部532的嵌合構造來支持平隔板片500a~500c之構成，可省略橫樑。 In addition, as described above, the configuration in which the second supporting structure 400, the pillar 450, and the fitting structure of the recessed portion 530 and the protruding portion 532 support the flat partition plates 500a to 500c can omit the cross beam.
回到第3圖進行說明，錨定螺栓104係設於鐵皮210。如上述，外壁磚塊232(上壁部230)的荷重會經由第一支持構造300而作用於鐵皮210，而平隔板114的一部分的荷重會經由第二支持構造400而作用於鐵皮210。 此外，載置於平隔板114上之格子磚116的荷重的一部分也會經由第二支持構造400而作用於鐵皮210。作用於鐵皮210之荷重，會成為對抗送風程序時的送風壓(浮升力)及地震時的水平方向的荷重所造成的傾覆力矩的抵抗力。因此，與蓄熱室10相比較，可減低錨定螺栓104的數目及錨定螺栓104的栓徑。 Returning to FIG. 3, the anchor bolt 104 is attached to the iron sheet 210. As described above, the load of the outer wall bricks 232 (upper wall portion 230) acts on the iron sheet 210 via the first support structure 300, and the load of a portion of the flat partition plate 114 acts on the iron sheet 210 via the second support structure 400. In addition, a part of the load of the lattice brick 116 placed on the flat partition 114 also acts on the iron skin 210 via the second support structure 400. The load acting on the iron sheet 210 becomes resistance to the overturning moment caused by the air pressure (floating force) during the air supply process and the horizontal load during the earthquake. Therefore, as compared with the heat storage chamber 10, the number of anchor bolts 104 and the bolt diameter of the anchor bolts 104 can be reduced.
如以上所說明的，本實施形態的蓄熱室110以可鑄耐火物構成下壁部220而可較以往的蓄熱室10減低製造成本。而且，相較於以往的蓄熱室10，還可將製造程序減低到1/3左右。 As described above, the heat storage chamber 110 of the present embodiment is formed of castable refractory material and the lower wall portion 220 can reduce the manufacturing cost of the conventional heat storage chamber 10. Moreover, compared with the conventional regenerator 10, the manufacturing process can be reduced to about 1/3.
以上，已參照隨附的圖式而針對實施形態進行了說明，惟本發明當然不限定於上述的實施形態。應了解：若為所屬技術領域中具有通常知識者，即顯然可在申請專利範圍所記載的範圍內思及各種的變化例或修改例，此等變化例或修改例當然也屬於本發明的技術範圍。 The embodiments have been described above with reference to the accompanying drawings, but the present invention is of course not limited to the above embodiments. It should be understood that if one has ordinary knowledge in the technical field to which it belongs, it is obvious that various changes or modifications can be considered within the scope described in the scope of the patent application. Such changes or modifications also belong to the technology of the present invention. range.
例如，上述實施形態中，係舉鐵皮210、下壁部220、上壁部230為圓筒形狀之情況為例而進行說明。但是，鐵皮210、下壁部220、上壁部230只要是筒形即可。 For example, in the above-mentioned embodiment, the case where the iron skin 210, the lower wall portion 220, and the upper wall portion 230 are cylindrical is described as an example. However, the iron skin 210, the lower wall portion 220, and the upper wall portion 230 may be cylindrical.
另外，在上述實施形態中，係舉鐵皮210具有小徑部212、擴徑部214、及大徑部216之構成為例進行說明。但是，鐵皮210亦可為相同直徑。 In the above-mentioned embodiment, the configuration in which the iron sheet 210 has the small-diameter portion 212, the enlarged-diameter portion 214, and the large-diameter portion 216 will be described as an example. However, the iron skin 210 may have the same diameter.
又，上述實施形態的上壁部230係舉在水平方向上有一層外壁磚塊232向鉛直方向堆疊而構成之情況為例進行說明。然而，上壁部230不僅在鉛直方向，即使 在水平方向亦可為多層構造。例如，上壁部230亦可為向水平方向堆疊斷熱磚、第一耐火磚、及第二耐火磚。而且，上壁部230還可為下述構造：斷熱磚向鉛直方向堆疊，第一耐火磚於斷熱磚的旁邊向鉛直方向堆疊，第二耐火磚於第一耐火磚的旁邊向鉛直方向堆疊。在此情況，第一支持構造300亦可具有鉛直方向的位置不同之三個上表面312(第一載置面)。 In addition, the upper wall portion 230 of the above-mentioned embodiment is described by taking an example in which a layer of outer wall bricks 232 is stacked vertically in the horizontal direction. However, the upper wall portion 230 is not only in the vertical direction, even It can also be a multilayer structure in the horizontal direction. For example, the upper wall portion 230 may be stacked horizontally with thermal insulation bricks, first refractory bricks, and second refractory bricks. Furthermore, the upper wall portion 230 may also have the following structure: the thermal insulation bricks are stacked vertically, the first refractory bricks are stacked vertically next to the thermal insulation bricks, and the second refractory bricks are stacked vertically next to the first refractory bricks Stacked. In this case, the first support structure 300 may have three upper surfaces 312 (first placing surfaces) with different positions in the vertical direction.
又，在上述實施形態中，係舉第一支持部320為肋板之情況為例進行說明。但是，只要可連接第一本體310的下表面與擴徑部214，第一支持部320並沒有限定形狀。例如，第一支持部320亦可為圓筒形狀。 In addition, in the above embodiment, the case where the first support portion 320 is a rib is described as an example. However, as long as the lower surface of the first body 310 and the enlarged diameter portion 214 can be connected, the first support portion 320 is not limited in shape. For example, the first support portion 320 may have a cylindrical shape.
又，在上述實施形態中，係舉第一支持構造300的第一本體310的外緣(第一連接部)連接至擴徑部214與大徑部216的交界之構成為例進行說明。但是，第一支持構造300的第一本體310的外緣(第一連接部)只要連接至鐵皮210即可，並沒有限定位置。例如，第一支持構造300的第一本體310的外緣(第一連接部)亦可連接至大徑部216或擴徑部214。 In addition, in the above-mentioned embodiment, the configuration in which the outer edge (first connection portion) of the first body 310 of the first support structure 300 is connected to the boundary between the enlarged diameter portion 214 and the large diameter portion 216 will be described as an example. However, the outer edge (first connection portion) of the first body 310 of the first support structure 300 only needs to be connected to the iron skin 210, and there is no limited position. For example, the outer edge (first connection portion) of the first body 310 of the first support structure 300 may also be connected to the large-diameter portion 216 or the enlarged-diameter portion 214.
又，在上述實施形態中，係舉支柱450為圓筒形狀之情況為例進行說明。但是，支柱450只要為筒形即可，並沒有限定形狀。例如，支柱450亦可為多角筒形狀。 In addition, in the above-mentioned embodiment, the case where the pillar 450 has a cylindrical shape will be described as an example. However, the pillar 450 may have a cylindrical shape, and the shape is not limited. For example, the pillar 450 may have a polygonal cylinder shape.
又，在上述實施形態中，係舉蓄熱室110具備第二支持構造400之構成為例進行說明。但是，蓄熱室 110亦可不具備第二支持構造400。在此情況，平隔板114只由支柱450加以支持。 In addition, in the above-described embodiment, the configuration in which the heat storage chamber 110 includes the second support structure 400 will be described as an example. However, the regenerator 110 may not have the second support structure 400. In this case, the flat partition 114 is supported by the pillar 450 only.
又，在上述實施形態中，係舉下壁部220的水平方向的寬度比上壁部230窄之情況為例進行說明。但是，下壁部220的水平方向的寬度亦可與上壁部230實質相等。 In the above-mentioned embodiment, the case where the width of the lower wall portion 220 in the horizontal direction is narrower than the upper wall portion 230 will be described as an example. However, the horizontal width of the lower wall portion 220 may be substantially equal to the upper wall portion 230.
又，在上述實施形態中，就熱風爐100而言，係舉外燃式熱風爐為例進行說明。但是，熱風爐亦可為將燃燒室與蓄熱室構成為一體之內燃式熱風爐、或將燃燒室設於蓄熱室的頂部之頭頂式熱風爐。 In addition, in the above-described embodiment, the hot-blast stove 100 will be described by taking an external combustion type hot-blast stove as an example. However, the hot blast stove may be an internal combustion type hot blast stove in which the combustion chamber and the heat storage chamber are integrated, or an overhead hot blast stove in which the combustion chamber is provided on the top of the heat storage chamber.
又，平隔板片500a~500c的形狀並沒有限定。 In addition, the shape of the flat separator sheets 500a to 500c is not limited.
本發明可利用於熱風爐。 The invention can be used in a hot blast stove.
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| JP2017227206A JP6949683B2 (en) | 2017-11-27 | 2017-11-27 | Hot air furnace |
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| JPS5713661U (en) * | 1980-06-26 | 1982-01-23 | ||
| CN103415629A (en) * | 2011-03-09 | 2013-11-27 | 杰富意钢铁株式会社 | Hot-blast branch pipe structure of blast furnace hot stove and hot-blast branch pipe |
| TW201518666A (en) * | 2013-08-06 | 2015-05-16 | Nippon Steel & Sumikin Eng Co | Hot-blast stove construction method |
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| US1840554A (en) * | 1930-06-12 | 1932-01-12 | Augustus E Anderson | Brick and brick work for hot blast stoves and the like |
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| JPS492641B1 (en) * | 1970-12-07 | 1974-01-22 | ||
| JPS515971B2 (en) * | 1971-12-21 | 1976-02-24 | ||
| JPS511205A (en) | 1974-06-24 | 1976-01-07 | Kubota Ltd | JOYOGATAKONSOCHI |
| JPS5128305U (en) * | 1974-08-23 | 1976-03-01 | ||
| JPS5872148U (en) * | 1981-11-05 | 1983-05-16 | 新日本製鐵株式会社 | Combustion chamber for hot blast stove or furnace wall structure of combustion furnace |
| JPH05157458A (en) * | 1991-12-11 | 1993-06-22 | Asahi Glass Co Ltd | Heat storage chamber |
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| JP4860427B2 (en) | 2006-10-19 | 2012-01-25 | 新日鉄エンジニアリング株式会社 | Blast furnace wall construction method |
| JP5092628B2 (en) * | 2007-08-29 | 2012-12-05 | Ｊｆｅスチール株式会社 | Construction method of hot stove |
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2017
- 2017-11-27 JP JP2017227206A patent/JP6949683B2/en active Active
-
2018
- 2018-11-08 KR KR1020207005273A patent/KR102342303B1/en active IP Right Grant
- 2018-11-08 WO PCT/JP2018/041419 patent/WO2019102851A1/en active Application Filing
- 2018-11-15 TW TW107140578A patent/TWI672381B/en not_active IP Right Cessation
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JPS5713661U (en) * | 1980-06-26 | 1982-01-23 | ||
| CN103415629A (en) * | 2011-03-09 | 2013-11-27 | 杰富意钢铁株式会社 | Hot-blast branch pipe structure of blast furnace hot stove and hot-blast branch pipe |
| TW201518666A (en) * | 2013-08-06 | 2015-05-16 | Nippon Steel & Sumikin Eng Co | Hot-blast stove construction method |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20200033304A (en) | 2020-03-27 |
| JP6949683B2 (en) | 2021-10-13 |
| KR102342303B1 (en) | 2021-12-21 |
| JP2019094549A (en) | 2019-06-20 |
| WO2019102851A1 (en) | 2019-05-31 |
| TW201925482A (en) | 2019-07-01 |
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| MM4A | Annulment or lapse of patent due to non-payment of fees |