TW201122113A - Cooling stave for a metallurgical furnace - Google Patents

Abstract

A cooling stave (100) for a metallurgical furnace, in particular for a blast furnace, has a metallic plate body (110) with a front face (112) and a rear face (114), and at least one internal coolant passage (120). A set of heat pipes (130) is associated to the coolant passage in the plate body (110) to improve heat transfer from the front face (112) to the associated coolant passage (120). According to the invention, each heat pipe (130) of the set is arranged within the plate body (110) with its condensation end portion (132) enclosed in metallic material of the plate body (110) contiguous to the associated coolant passage (120). Heat transfer from the condensation end portion (132) to the associated coolant passage (120) occurs through this region of metallic material.

Description

201122113 VI. Description of the Invention: TECHNICAL FIELD OF THE INVENTION The present invention generally relates to a cooling apparatus of the type, and more particularly to a vertical cooling plate for use in a metallurgical furnace. This date is intended to be, in particular, but not limited to, a vertical cooling plate made in an S furnace (especially in a squid). [Prior Art]. Vertical cooling plates (also known as "plate coolers", "cooling plates," or simply "S-plates") have been used in blast furnaces for decades to protect furnace slabs. Vertical cooling plate arrangements On the inside of the furnace baffle (ie, the furnace shell), and typically has an internal coolant conduit connected to the furnace's cooling system. The coolant officially passes through an e.g. coolant tube or is drilled. The internal passages that are inserted or cast are formed to reduce the thermal resistance at the interface. The "hot surface" (i.e., the riser surface facing the interior of the furnace) is typically coated with a heat resistant material to isolate the riser from the processing environment. The original purpose of plate cooling was that the heat resistant material would grind the mussels and theoretically the riser would work without the heat resistant material on the hot side. However, this would subject the riser to considerable wear due to the processing environment. And eventually lead to failure, even if the cooling of the riser promotes the formation of a protective layer on the hot side ("scaffold"). The most widely used in the beginning is the vertical cooling plate with the iron plate body, now 2 is the same. closer In some cases, vertical cooling plates with plates made of copper or steel have been proposed and successfully used. Although copper vertical cooling plates usually have much better thermal conductivity than cast iron or steel vertical cooling plates, the former The wear resistance is much smaller than the latter. Therefore, the vertical cooling plate in which the furnace is subjected to very large mechanical stress cannot easily assemble the copper vertical cooling plate. In addition, the copper vertical cooling plate is usually cooled vertically than the cast iron. 201122113 _ ΐ 其 其 更高 2011 2011 2011 2011 2011 2011 2011 2011 2011 2011 2011 2011 2011 2011 2011 2011 2011 2011 2011 2011 2011 2011 2011 2011 2011 2011 2011 2011 2011 2011 2011 2011 2011 2011 2011 2011 2011 2011 2011 2011 2011 2011 2011 2011 2011 2011 2011 2011 Moreover, it is highly desirable to form a protective "shelf". On the other hand, cast iron (or steel) slabs are usually not covered by heat conduction in the lower part of today's stilts, and will be applied in the lower area. The honing (or steel) board with a very high force σ has a higher mechanical strength than the slab. In fact, the copper plate will be worn out in the case of a heat-resistant coating or a protective slab of the copper slab. Sexually unreduced load is severely damaged. This

In addition, copper risers are more susceptible to deformation due to uneven thermal loading, which increases the risk of damage to the risers. / 曰 As will be appreciated, regardless of whether the riser is made of copper or ferrous metal, mechanical damage to the riser may cause its internal internal coolant passage to rupture. This rupture causes a considerable explosion hazard due to the formation of explosive hydrogen gas generated by the coolant leaking into the interior of the high temperature furnace. In the event that such a leak occurs to an unacceptable extent, a very expensive interruption of the operation of the furnace must be performed since the vertical cooling plate cannot be replaced during operation. In an attempt to reduce the likelihood of coolant leaking into the furnace and to minimize associated hazards and costs, U.S. Patent Application No. 2008/0111287 proposes an improved riser design in which the riser has no conventional internal coolant passage (with Cooling circuit connection). In contrast to conventional risers, US 2008/0111287 proposes the installation of a heat pipe device 'where the heat pipe' extends from the interior of the riser plate body to the heat sink outside the furnace shell. Therefore, in this riser, the condensing end portion of the heat pipe is disposed outside the furnace shell while only the evaporation end portion of the heat pipe is disposed in the plate body of the riser. A similar design is proposed in German Early Publication No. DE 28 04 282, Japanese Patent Application No. JP 54 050 477, and Soviet Inventor Certificate SU 499300. As will be noted, the latter design has no cooling water passages for the cooling circuit inside the riser compared to the conventional 201122113 riser. Although these designs thus considerably reduce the risk of "hydrogen explosion" due to water leakage, and although it may provide similar or even improved heat removal capabilities, the main disadvantage is that it requires a large degree of Modify the existing cooling circuit infrastructure and furnace shell. In other words, the above design is not easily adaptable to retrofitting an existing blast furnace, i.e., not suitable for in-situ installation at an existing furnace without additional installation costs. The international patent application No. WO 80/01000 and the U.S. Patent No. 4,561,639 'and, similarly, the international patent application price w〇8〇/〇12〇1 proposes a similar reduction in the risk of cooling water entering the interior of the furnace. method. The board design according to WO 80/(M000 and US 4,561,639 also includes a plate body made of a metal material with its front face facing the inside of the furnace. Contrary to the previous design, and in a similar manner to a conventional vertical cooling plate, These panels still include internal coolant (cooling water) channels in the plate that are connected to the furnace cooling circuit in a typical manner. However, as a modification of the conventional riser, the heat pipes are connected to the coolant channels. The heat pipe is arranged in the plate to improve heat transfer from the front φ ("hot face") to the internal coolant passage. Therefore, the thermal conductivity is improved, thereby reducing the risk of mechanical failure. In addition, if it is some unsafe cooling medium, The heat pipe is less able to withstand, so the heat pipe is more prone to mechanical rotation than the cooling tunnel. The heat fu f allows for simple improvement and connection to the existing coolant circuit, but still according to the design of the w〇 or 4,561,639 There is a greater risk of coolant leakage. SUMMARY OF THE INVENTION A first object of the present invention is to provide a vertical cooling plate of the general construction of the type described above, Compared with the traditional vertical cooling plate, it has a smaller cooling relay hazard 'with the containment (4) combined with the existing metallurgical furnace 201122113 • without the need for large structural modifications. Vertical according to the invention The cooling plate can be used for this purpose. The invention relates to a vertical cooling plate (in short, a "stave") for protecting a casing of a metallurgical furnace, in particular a blast furnace. In a known manner, The vertical cooling plate comprises a plate body made of a metal material. The plate body has a front face and an opposite rear face which, when the riser plate is mounted, respectively face the interior of the metallurgical furnace and face the casing. Also in a known manner, At least one internal coolant passage is provided in the plate body, the coolant passage having a body portion, which is generally (but not necessarily) straight and has a cylindrical cross section. According to the present invention, a set of heat pipes and At least one of the coolant passages typically cooperates with each of the coolant passages. Each heat pipe has an evaporation end portion and a condensation end portion. The heat pipe group is disposed in the plate body to improve the usual Face (ie from ''face") to the opposite "cold face", (more specifically, to the heat transfer of the associated coolant passage. To achieve the above first object and according to the invention, each of the heat pipe groups The heat pipe is disposed within the plate body, i.e., does not significantly protrude from the plate body, and further has its condensing end portion disposed to be partially closed or completely enclosed in the plate material adjacent to the associated coolant channel. That is, each The condensing end of the root heat pipe is partially enclosed or completely contained in the slab material. In either case, it does not protrude into the coolant passage. Therefore, from the condensing end portion during operation Heat transfer to the coolant passage occurs through the metallic material adjacent the coolant passage. In other words, the condensation end portion is indirectly cooled by heat conduction through the interface of the metallic material of the plate between the heat pipe and the associated coolant passage. 7 By integrating a relatively small heat pipe, the overall thermal conductivity of the riser can be significantly improved, especially in the case where the riser is made of ferrous metal, but also in the case where the riser is made of '201122113 copper. The finite element calculation predicts that for cast iron risers, it increases thermal conductivity by >30% compared to conventional cast iron risers, and for copper risers, increases thermal conductivity by >1% compared to conventional copper risers. Sex. In addition, the heat distribution is enhanced to reduce the risk of plastic deformation due to excessively high and uneven temperature in the plate. Finally, the service life of the riser can be extended by providing a heat pipe ' according to the present invention. Compared to a riser equipped with a heat pipe according to US 2008/0111287, DE 28 04 282, JP 54 050 477 or SU 499300, the riser according to the invention has the significant advantage consistent with prior designs. In fact, the proposed riser makes the moon b enough for the women's clothing in the existing furnace (renovation (retr〇£|tting)), even if it needs to change I will not make a big change to the cooling equipment, no need to The heat pipe is connected to the improved cooling circuit and there is no need to create a heat pipe vacuum in situ (which may be essential to the mentioned prior art risers). The riser according to the invention has the important advantage of further reducing the risk of leakage of the refrigerant into the furnace, compared to a riser equipped with a heat pipe according to WO 80/01000 and US 4,561,639. In fact, according to w〇8〇/〇1〇〇〇 and us 4'561, 639 'the cold/end portion of the cavity heat pipe that is connected to the coolant passage to accommodate the heat pipe in the plate body is disposed in the coolant passage Inside. These cavities inevitably create passages from the associated coolant passage to the portion near the front of the riser, which must be sinfully sealed in order to avoid mechanical failure (e.g., two cracks or cracks) in the cavity. This pipe produces any leaks. Therefore, as the wear continues, the leakage of the coolant from the risers according to 80/01000 and US 4,561,639 cannot be reliably excluded. In the riser according to the present invention, this disadvantage is eliminated by a metal material barrier that holds the plate between the condensation end portion of the heat pipe and the associated coolant passage. 201122113. In the case where the plate is made of ferrous metal (especially made of cast iron or steel), a beneficial increase of the guide is achieved. Therefore, it is possible to obtain the excellent strength and high thermal efficiency of the iron or steel riser. However, a significant increase in thermal conductivity can also be achieved with copper risers. ...

Preferably, each set of heat pipes includes a pair of heat pipes disposed along the longitudinal, axial axis of the body portion of the associated coolant passage, which are preferably disposed at regular intervals. However, each layer may alternately include a single pair of heat pipes and heat pipes to further optimize overall thermal conductivity. In the latter case, the condensing end portions of the two heat pipes in each pair of heat pipes are advantageously disposed on opposite sides of the main body portion of the associated coolant passage. Furthermore, in order to increase the length of the heat pipe and thereby increase the effective "thermal short" and to achieve more uniform cooling of the front at the same time, it is preferred to set the heat pipes in each pair of heat pipes obliquely with respect to the front-rear direction, and In the case where the heat pipe evaporation end portion is spaced apart from the condensation end portion more than the front side of the riser including alternating holding ribs and holding grooves for holding the heat resistant material, it is preferable to arrange the heat pipes hierarchically at the height of the holding ribs' Enhance the mechanical protection of the thermal officer in the board. In the latter embodiment of the present invention, the evaporation end portion of the heat pipe is disposed to be enclosed in the holding rib to further reduce the overall thermal conductivity. Alternatively, the heat pipe can be arranged so as not to protrude into the retaining ribs to withstand mechanical stress with minimal privacy. In another preferred embodiment, each heat pipe in the heat pipe set extends completely in the plate body from the vicinity of the front to the vicinity of the associated coolant passage, and preferably along the longitudinal axis of the body portion of the associated coolant passage. The direction extends. Preferably, each of the heat pipes of a group of heat pipes is also arranged to surround its evaporation end portion in the metal material close to the front. Therefore, heat transfer from the front to the portion of the evaporation end 201122113 is generated by the interface close to the front metal material, thereby preventing mechanical wear of the evaporation end portion. In a further preferred embodiment, the first cap heat assisting tube is disposed in the plate body to extend perpendicular to the longitudinal axis of the coolant passage and parallel to the front face. This auxiliary oxygen pipe improves the heat distribution along the width direction of the plate body. In order to increase the heat distribution along the length of the plate body, a second tube may be disposed in the plate body to extend parallel to the longitudinal axis of the coolant passage. Typically, the plate body includes a plurality of parallel internal coolant passages, each having respective respective heat pipe groups of the present invention. In the latter case, the longitudinal axis of the channel is advantageously cooled, the wheel arrangement is closer to the rear face than the distance from the face, especially within the last 4% of the thickness of the bottom wall of the plate. In this configuration, the water delivery channel (the integrally formed channel or the inserted tube) in the board is further away from the inside of the furnace. This further reduces the risk of penetration and, in some cases where a fatal failure occurs on the front side of the riser, this design ensures that no water enters the furnace. Therefore, the risk of a helium explosion can be further reduced. Alternatively, to ensure operation in any direction, the heat pipe preferably includes an internal wick arrangement (eg, a sintered gold core arrangement) or an internal groove arrangement to operate the heat pipe by capillary action' The condensed end portion of the enamel enamel is returned to the evaporation end portion. Depending on the mode of manufacture selected, the sheet metal body may comprise: - for each heat pipe in the heat pipe group, the corresponding blind hole is drilled from the rear and terminates in the vicinity of the front - each heat pipe is thermally conductive (preferably The ground is fixed in its corresponding blind hole by a close fitting; or for each heat pipe in the heat pipe group, a corresponding calibrated steel blind pipe is cast in the plate body and extends from the rear and terminates in the front 10 201122113 The way of heat conduction (preferably by tight fit) is fixed in the manufacturing mode 'where the plate body is made of converted metal and each heat pipe in the heat f group is cast in the metal plate body. How to make a ’ 面 实施 实施 实施 , , , , , , , , , , 热 热 热 热 热 热 热 热 热 热 热 热 热 热 热 热 热 热 热 热 热 热 热 热 热 热 热 热

Nearly, in each of the heat pipes, as will be understood in their respective blind tubes, the board of the present invention is particularly suitable for use in blast furnace cooling systems in preferred fines, the risers provided are made of cast iron or steel and are installed in a furnace. The height of the waist and / or belly. [Embodiment] In Fig. 1, a first embodiment of a vertical cooling plate 1 (hereinafter referred to as "rising plate") is shown in a longitudinal cross-sectional view. The riser 1〇〇 includes a plate body 110' made of a metal material such as ferrous metal such as cast iron, typically ductile iron (spheroidal graphite cast iron 'DrN "GGG" type) or flake graphite cast iron (ash) Bound iron 'DIN "GGL" type). As will be appreciated, the plate 11 can also be made of another metal, such as copper. The metal plate body 110 has a substantially parallelepiped shape in which the front face and the opposite rear face are denoted by 112 and 114, respectively. The front face of the plate ho] ("hot face") is advantageously provided with a series of alternating and regularly spaced parallel retaining ribs 116 and retaining slots 118. The ribs 116 and grooves 203 are preferably dovetails on the lateral cross-face, as best seen in FIG. Therefore, as shown in Fig. 1, the front face 12 is corrugated to increase the heat exchange surface and to improve the adhesion of the heat resistant coating typically disposed on the front face. The riser 11 is placed on the inside of the casing of a metallurgical furnace (e.g., blast furnace (not shown)) with the front face 112 facing the interior reaction space of the furnace. Typically, the plate body 110 has dimensions in the following ranges: length: 500_5000 mm, 201122113 width: 200-2000_, plate thickness: (minimum inch wall thickness) 40-50 Gmm. The ruler is the bottom pass =:== except for the rib 116, and a plurality of such coolant passages 12G are included, which are generally parallel to each other. Coolant passage 120

= (10) and extending in the metal plate body 110 between the front face 112 and the rear face 114. The cross section of the bust cold pack passage 120 is generally circular, but different shapes, such as elliptical cross sections, are not excluded. As shown! It is further seen that the A agent channel is connected to the connector portion 122. The connecting tube portion 122 of the figure wiper is welded laterally to the entire length of the channel of the channel (10), or alternatively, it can be formed by the cooling age (four) curved portion to insert the cooling age into the board 110. And the bore forms a coolant passage (not shown (four) generation. The connecting tube portion 122 respectively forms an inlet and an outlet for connecting the internal coolant passage 12 to the cooling circuit (not shown) of the blast furnace. It must be completely straight and straight, but each coolant channel 12〇 typically has at least one linear body portion with a longitudinal axis A, as best seen in Figure 2 and Figure 2. As is apparent in Figure 1, the primary group of heat pipes 130 cooperates with each of the coolant channels 120. As is well known, heat pipes have very high effective thermal conductivity, which is typically hundreds of times greater than the thermal conductivity of copper, and thus It is considered to be "thermaj, short." The proper construction of heat pipe 130 is known per se. For example, further details can be found in Reay, David, and Peter Kew's "Heat Pipe, Fifth Edition · Theory, Design, and "Butterworth-Heinemann Press; 5 ed. (2006); ISBN 978-0750667548. ' 201122113 As best shown in Figure 3, each heat (typically referred to as "evaporator portion,") and A, / /, the service part 132 condenser part "). As should be noted, for 4 (typically referred to as "cold use 'heat pipe' has an internal working medium sage 10. Medium makes the material suitable for > Temperature, material, material, the shell 130 usually has an internal core arrangement (such as gold 疋 2 Ge mercury. Heat = tank, so that regardless of heat pipe _ orientation such as ^

Returning from the condensing end portion m to the steaming ensures that from the condensing end portion m to the evaporating end portion 132 has a riding inclination as seen in the following second auxiliary heat pipe group, which can be assisted by gravity to "quality return" so that (four) Receive a heat pipe 13G. Fine, J; = What shape is the most practical 'The heat pipe uo can in principle have any generally elongated: as best seen in the enlarged view of Figure 3, the condensation end portion U4 of each heat pipe is set in the associated cooling The vicinity of the agent passage 12〇, and the evaporation end portion 132 are disposed in the vicinity of the front surface 112 of the plate body 110. Therefore, each heat pipe of the main group is disposed in the plate body 110 to improve the overall heat transfer from the front face 12 ("hot face,") to the rear face 114 ("cold face"), specifically improved from Heat transfer from the front to the associated internal coolant passage 120. As shown in Figure 1 'in a set of heat pipes 130 associated with a given coolant passage 12, the heat pipes 130 are layered at regular intervals along the longitudinal axis, Preferably arranged to substantially cover the entire length of the associated coolant passage 120. In the riser 1 of Figures 1 to 3, each heat pipe 130 is arranged to extend from the vicinity of the associated coolant passage 120 to the front In the vicinity of 112, the retaining ribs 116 are not extended. Therefore, the heat pipes 130 of Figs. 1 to 3 are lost in the core parallelepiped portion of the plate body 110, and do not enter the ribs 116' to avoid being typically subjected to the ribs 116. a greater mechanical stress, wherein 'the mechanical stress is substantially covered by the temperature gradient and its heat-resistant support work 201122113 and preferably the heat pipe 13G to cover the length of the associated coolant passage in a central region other than the uppermost position of the plate (10) , The extreme position is also subject to considerable stress and wear. Preferably, as shown in Figures i and 3, the heat pipes 13 are arranged in layers, the longitudinal axis B of the heat pipes and the corresponding ribs 116 are symmetrically aligned. It is also possible to arrange the heat pipe 13G without, for example, the money 12 is located in the middle fresh surface of the county rib 116. As best seen in Fig. 3, == the fresh no is arranged such that its longitudinal axis B is oriented substantially vertical. In the longitudinal direction j A. In the 跋 1 (10) towel, each layer includes a single heat pipe, please be arranged to cross the axis A of the relevant coolant channel but the number of heat (four) is approximately equal to the number of the retaining ribs 116 : The two uppermost and lowermost retaining ribs 116 remove 2 to 4 heat pipes, as shown. As will be understood and as best shown in FIG. 3, each of the main heat pipes 13 is embedded with a metal plate body no β The condensing end portion 134 is surrounded by the "cooling," portion of the gold feed of the plate body 11〇, which is adjacent to the associated coolant passage 12A. Thus, in the f operation, the heat transfer from the condensing ends 34 to the respective coolant passages is "cooled" by the "cooling" of the sheet material of the near cold refrigerant passage 12G. In other words, the heat pipe 130 does not extend into the coolant. The passage 120 does not protrude from the plate body 11. Therefore, the heat pipe 130 is securely enclosed in the material of the plate body no, and the damage of the two pairs of any heat pipe 130 caused by wear or stress may result in heat due to heat f _ especially the residual barrier '7' of the metal material between the condensing end portion 134) and the coolant passage 12 的 from the associated coolant passage 12 戈; Gordon. Preferably, each heat pipe is arranged 130 ' is such that the shortest distance between its condensing end portion 134 and the outer casing of the associated coolant passage 120 (eg 'cylindrical') is greater than 2 faces, preferably in the range of 2 mm to 5 mm, more preferably 5 mm to 1 〇. In the range of mm, to ensure practical safety under low thermal resistance. 14 201122113 In order to further prevent the heat pipe 13〇 from being subjected to the stress of the front 112 (hot surface) ί wear ' each heat pipe 13 〇 is arranged to have its evaporation end part 132 packs In the metallic material near the surface of the plate ι10 m "heating section ,,. Thus, heat transfer from the front face 112 to the evaporating portion 132 passes through the corresponding "heating portion of the sheet material adjacent the front face 112, resulting in. For example, step-by-step understanding", in addition to achieving a significant reduction in the risk of leakage, the proposed f The structure of the thermal officer 130 greatly increases the overall thermal conductivity in the front-rear direction (from "heat, front 112 to cold, surface 114"). Therefore, this also allows each coolant passage Φ I20 to be clamped closer to the rear 114 than the typically proposed conventional riser. Preferably, the coolant passage 12G_ is thus arranged axially A to be closer to the rear face 114 than to the front face 112, i.e., the ratio dr / you. Preferably, the crawling μ, more preferably, the ground dr/df^O.7, wherein the distance is from the axis a to the rear, and df is the distance from the axis A to the surface 112 (at the level of the groove 丨18 ( Ievei), as shown in Figure 。. The coolant passage 120' is constructed such that the remaining material thickness of the plate body 110 between the coolant passage 12A and the rear 1M is minimized, preferably in the range of 5 mm to. As a result, the risk of stress-induced failure of the coolant passage 120 causing leakage is further reduced because the rear face 114 is subjected to minimal mechanical stress. ® Figure 1 shows a first set of parallel auxiliary heat pipes 140' which are embedded in the body 110 in different directions. As best seen in Figure 2, the parent roots of the plurality of first auxiliary heat pipes 14A are arranged such that their longitudinal axis C is perpendicular to the longitudinal axis A of the parallel coolant channels 12A and generally parallel to the front. 112 extension. The ends 142, 144 of the heat pipe 140 are located within the sheet material adjacent the opposite side edges of the plate 11'. Therefore, the end portion 142' 144 acts as a condenser or evaporator portion depending on the temperature distribution ' inside the plate body 11'. Due to the relatively long length of the heat pipe 140, the heat pipe 140 is typically fitted with an insulated central portion 146' end 142' 144 through which the portion is joined. As shown in Fig. 1, the heat pipes 140 are preferably arranged in the intermediate plane of the respective holding grooves U8, and the heat pipes HG are arranged to be the most expensive 'column casings in the longitudinal direction 3 except for the uppermost and lowermost grooves 15 201122113. Depend on _ round, heart. As will be understood, the first group ===== increases the heat distribution in the width direction, and thus also the load of the plate body 110. Preferably, the second

=, = is a group that substantially covers the length of the coolant passage 120. Correction, although iron (2): The second set of auxiliary heat pipes can be set in a similar manner to improve the heat distribution in the direction of the body of the b, and thereby reduce the curl of the plate. == Tube embedded in the plate (4) to parallel to the coolant passage_longitudinal Figures 4 to 6 show a second embodiment of the riser. For the sake of brevity, only the difference between the board of Figs. 4 to 6 and the board of Fig. 3 to Fig. 3 will be described in detail below. Other features represented by digits of octet digit increase are the same or similar to those described above. As best seen in Fig. 5, in contrast to the slab 1 ,, the evaporation end portions 232 of the main heat pipes 230 in the landings 2 are enclosed in the sheet material forming the respective retaining ribs 216. For the heat pipe 230 partially extending into the retaining rib 216, its thermal conductivity is further increased because the evaporation end portion 232 is located closer to the foremost plane of the corrugated front face 212. Therefore, the heat pipe 230 may be provided with an intermediate heat insulating portion depending on its required length. The safety distance between the condensing end portion 234 and the associated coolant passage 220 is preferably selected to be similar to the safety distance set above with respect to Figures 1-3. In addition, even if the failure (e.g., the rupture of the heat pipe 230) is not important, it is preferable to arrange each of the heat pipes 230 such that the shortest distance between the evaporation end portion 232 and the surface of the front face 212 at the end of the corresponding rib 216 In the range of 5 mm to 50 mm, the mechanical stress and wear to be applied are minimized to ensure sufficient service life of the heat pipe 230. As should be noted and shown in the lateral cross-sectional view in FIG. 2, the 1 plate 2GG of FIGS. 4 to 6 is also equipped with an auxiliary heat pipe 24G, which is similar to the one described in the above. Construct and arrange. Further, the axis ^ of each heat pipe top is also parallel to the front-rear direction, and is indicated by a line D in FIG. , , 300 f-7 to Fig. 9A show a third embodiment of the vertical cooling plate, which is referred to by the reference numeral. Only the differences from the board 1 of FIGS. i to 3 and the board 2GG of FIG. 46 are explained in detail below. Other features are the same or similar to the features described above. In the panel 300 of FIG. 7 to FIG. 9A, the main heat pipe 33 is constructed in a different manner in terms of the number of wires 33 : used: j plate body _ direction, and the best view is shown in FIG. 9A. To (as shown along the line of FIG. 7), each group associated with the disk H1 agent channel 320 includes a pair of heat pipes 330 in each layer, and the layer ribs 316 correspond (except for one or two uppermost And the bottom ribs). Therefore, in the embodiment of the iL, the total amount of the heat pipes 330 is approximately equal to the number of the coolant through ribs 316 multiplied by 2 '. Therefore, for example, the total is tens of thousands of vertical 2 A 1 靡, by _目_卩The pair of regularly arranged heat pipes 33G have a thermal efficiency of t in the front-rear direction and even according to the board 300 of FIG. 9A and are even less prone to premature failure. Further, as shown in Fig. 9A, the pair of heat pipes are spaced apart symmetrically and with respect to the lateral direction. More specifically, the evaporation end portion 332 of the other face 312 is spaced apart from the condensed end portion 334 near the coolant passage 320. The longitudinal axis B of the 330 is relative to the lateral front. This arrangement allows the amount of coolant from the front 312 _ to the relevant coolant ===: while ensuring that it is close to the front 3... the trowel 332 is along the plate 3丨〇 The distribution of the substantially uniform width of the direction 201122113. Similar to Figures 1 to 6, another 310 〇, ^tl; 3::": =: the opposite side of the main part of the relevant coolant channel 32〇, : 斤述, in the Luo W section 332 and the associated coolant passage 32 through this guarantor "cooling zone, produced. In addition, the configuration of the main heat pipe 330 that is more than those used in Figures 1 through 6 allows for the maximum heat pipe length while maintaining the average t distribution of the visibility at the evaporation end portion, along the =Z. The condensing end portion 334 is closer to the plate body 31. As best seen in Fig. 9A, the heat pipe 330 in each group of heat pipes is adjacent to the associated coolant passage 32〇 and in its lateral direction with respect to the front and rear direction D. The main part of the channel _ closed. Thus, when compared to Figure 6, a greater portion of the condensing end portion 334 is placed adjacent to the coolant passage to improve cooling. For ease of manufacture, for example, the heat pipes 33 are mounted in corresponding blind holes by a close fit. The blind hole extends obliquely along the axis B from the rear face 314 toward the front face 312 and terminates in the vicinity of the front face 312 'e.g., at a distance from the front face 5 mm to 5 〇 _. Preferably, the end face of the condensing end portion 334 is flush or substantially flush with the rear face 314. Although the side surface of the condensing end portion 334 is completely surrounded by the plate material adjacent to the associated coolant passage 32, it is not required in front of it (e.g., to make it more cooling on the side surface). In other words, in contrast to the previous embodiment, although the heat pipe 330 of the riser 3 is also disposed within the plate body 310 and does not protrude therefrom, it is not completely embedded in the material of the plate body 310. Fig. 9B shows a fourth embodiment of the riser, indicated by reference numeral 4〇〇. The riser 400 is substantially the same as the riser of Figs. 7 to 9A except that, in order to further simplify the manufacture, a blind hole (in which the main heat pipe 430 is mounted) is disposed in the plate body 410 in parallel with the front-rear direction D. Therefore, the heat pipe 43 is disposed in the plate body 41, whose longitudinal axis β is perpendicular to the axis a of the coolant passage 420 and perpendicular to the plane of the front face 412 / rear face 414 201122113. Finally, some preferred ways of making the above described vertical cooling plates 100, 200, 300, 400 are summarized below. It should be noted that the main heat pipes 130, 230 and the auxiliary heat pipes 140, 240 of Figs. 1 to 6 are completely embedded in the metal material of the plate body 110'210. In the case of manufacturing the plates 110, 210 by casting, the method suitable for completing the embedding is: (8) casting the heat pipes 130, 230 during the casting operation of the plate; 14"; 24", preferably, using a steel shell Heat pipe.

In an alternative method suitable for manufacturing the risers 300, 400 according to Figures 7 to 9B (wherein 'the exact end of one of the heat pipes 330, 430; 340, 440 may not be surrounded by the sheet material), it may be installed as follows Heat pipe 33〇, 43〇; 34〇, 44〇: (b) For cast plate body: During the casting operation of the plate body, the cylindrical sand core will be at the final position of the heat pipe 33〇, 43〇; 340, 440 Provided as a placeholder and, after casting, the sand core is removed and the cavity thus obtained is drilled, and then sufficient thermal contact is achieved by closely fitting the heat pipe 330 ' 430 ; 340 ' 440 therein (optionally , adding hot oil at the interface); (0 for cast plate: during the casting operation of the plates 310, 410 'casting a calibrated blind tube (preferably made of steel), the blind tube will have a plate The surface of the body 31〇, 41〇 is flush and has good thermal contact with the material due to carburization. After casting, for example, by tight fitting or screwing, the heat pipe 33〇, 43〇 is inserted; 34匕440 'And, if needed live' increases the protective filler material to Avoid including air in the remaining voids of the blind tube; or by (d) for any type of plate: drilling 'and' if necessary, after the plate body 310 is 'completely (cast or non-cast) manufactured, The receiving hole is drilled in place and then inserted into the heat pipe 330, 430; 340, 440, for example by a tight fit or a threaded connection. ' 19 201122113 It should be further noted that the plate body 110 ' 210 ' 310, 410 can also be made of non-ferrous metal 'especially It is copper. In copper risers, typically, for example, according to US 6,470,958 cast plates 110, 210, 310, 410 ' or by processing rolled sheets to produce plates n, 210 '310 '410. In the plate, the heat pipe 13 can also be installed by the following means: 230; 140; 240: (e) In the case of a cast copper riser: the heat pipe 130 ' 230 is cast during the casting operation of the copper plate 110, 21〇 140; 240 ' Preferably, a heat pipe having a steel shell is provided, which is provided with a suitable coating. (f) In the case of a copper plate body: drilling, and, if necessary, after casting manufacture Appropriate location The receiving holes are taken out, and then the heat pipes 330, 430; 340, 440 are inserted and mounted in a thermally conductive manner, for example by a close fit or a screw connection. However, preferably, the drawings i to 3 and the drawings are manufactured, for example, by the above method (8) or (4). 4 to the riser 100, 200 of FIG. 6, and the vertical cooling plate 300 of FIGS. 7 to 9A and 9B can be manufactured by any of the above methods (b), (c), (d), 4应当. It should be understood that the method (8) or (4) can also be used to manufacture the vertical cooling plate 300, 4 or the like according to Figs. 7 to 9A and 9B, wherein the condensation end portion is embedded in the side of the coolant passage. .

Legend/reference list: I Figure 1 to Figure 3: 100 riser; 110 plate; 112 front; 114 rear; = retaining rib; 118 retaining groove; 120 coolant passage; A12 turn longitudinal axis 122 connecting pipe portion; 130 (main) heat pipe; 132 evaporation end portion; 134 7 condensation end portion; B130 longitudinal axis; 140 auxiliary heat pipe; 142, 144 (steaming/condensing) end portion; 146 adiabatic portion; c 14 〇 longitudinal axis; To; df the distance from A to 112; dr the distance from a to 114. Figure 4 to Figure 6 and Figure 2: 200 riser; 21 〇 plate body; 212 front; 214 {face, 216 retaining rib, 218 retaining groove; 22 〇 coolant passage; eight 22 〇 20 201122113 min · 234 接 take over Part; 230 (main) heat pipe; 232 evaporation end 7 condensation end; B230 longitudinal axis; 240 auxiliary heat pipe; 242, (burst/condensation) end portion; 246 adiabatic portion; C24〇D珂 rear direction. Figure 7 to Figure 9A: 300 riser; 31 〇 plate body; 312 front; 314 rear; 316 retaining rib; 318 retaining groove; 320 coolant passage; A320 longitudinal axis / 322 connecting pipe portion, 33q (main) heat pipe; 332 evaporation end portion; 334

Condensation end portion; longitudinal axis of B 330; 340 auxiliary heat pipe; longitudinal axis of C34Q, front and rear direction of D. Figure 9B: 400 riser; 410 plate; 412 front; 414 rear; 420 coolant passage; A420 longitudinal axis; 430 (main) heat pipe; 432 evaporation end portion; 434 condensation end portion; B 430 longitudinal axis; Front and rear direction. BRIEF DESCRIPTION OF THE DRAWINGS Other details and advantages of the present invention will become apparent from the following detailed description of the accompanying drawings. Figure 2 is a side cross-sectional view taken along line π-ll in Figures 1 and 4; Figure 3 is an enlarged view of area III in Figure 1; Figure 4 is a second embodiment 5 is a longitudinal cross-sectional view of the vertical cooling plate; FIG. 5 is a large cross-sectional view of the region V in FIG. 4; FIG. 6 is a lateral cross-sectional view taken along line VI-VI in FIG. 4; Longitudinal cross-sectional view of the vertical cooling plate of the third embodiment 21 201122113 FIG. 8 is an enlarged view of a region VIII in FIG. 7; FIG. 9 is an lateral cross-sectional view taken along line IXA-IXA in FIG. The cross-sectional view 'the third embodiment of the vertical cooling plate is not shown; FIG. 9B is a side cross-sectional view showing the fourth embodiment of the vertical cooling plate. In these figures, the same reference numerals or hundreds of digits are added to indicate the same or functionally similar components throughout the text. [Main component symbol description]

100 riser 110 plate body 112 front face 114 rear face 116 retaining rib 118 groove 120 coolant passage 122 connecting pipe 130 (main) heat pipe

132 evaporation end portion 134 condensation end portion 140 auxiliary heat pipe 142 evaporation end portion 144 condensation end portion 146 insulation portion 200 riser 210 plate body 212 front face 214 rear face 216 retaining rib 22 201122113 218 retaining groove 220 coolant passage 222 connecting pipe portion 230 ( Main heat pipe 232 Evaporating end portion 234 Condensing end portion 240 auxiliary heat pipe 242 Evaporating end portion 244 Condensing end portion 246 Insulating portion 300 Vertical plate 310 Plate body 312 Front face 314 Rear face 316 Holding rib 318 Holding groove 320 Coolant passage 322 Connecting pipe portion 330 (Main) heat pipe 332 Evaporating end portion 334 Condensing end portion 340 Auxiliary heat pipe 400 Riser 410 Plate body 412 Front face 414 Rear face 420 Coolant passage 430 (Main) Heat pipe 432 Evaporation end portion 434 Condensing end portion

Claims (1)

201122113 VII. Patent application scope: L A vertical cooling plate for a metallurgical furnace, the vertical cooling plate comprising: a plate body made of a metal material, and the plate body comprises: an interior facing the metallurgical furnace a front face; an opposite rear; and at least one internal coolant passage in the plate body, the coolant passage having a body portion with a longitudinal axis; and a heat pipe group associated with the coolant passage, each The heat pipe has: an evaporation end portion and a condensation end portion, the heat pipe group being disposed in the plate body to improve heat transfer from the front face to the associated coolant passage; characterized in that the heat pipe group Each heat pipe is disposed in the plate body, wherein a condensation end portion of the heat pipe is enclosed in a metal material of the plate body adjacent to the associated coolant passage, thereby, from the condensation end portion to the Heat transfer from the associated coolant passage is produced by the metallic material adjacent the associated coolant passage. 2. The vertical cooling plate of claim 1, wherein the thermal group comprises a heat pipe pair layered at regular intervals along a longitudinal axis of the associated coolant passage. . 3. The vertical cooling plate according to claim 2, wherein the condensing end portions of the two heat pipes in each of the heat registers are arranged in a fine manner of the cold water channel The domain part is on the opposite side. The vertical cooling plate of the second or third aspect of the invention is characterized in that the heat pipes of the two pairs of heat pipes are disposed obliquely with respect to the front-rear direction, wherein the heat-producing portion of the heat pipe is spaced more than the portion of the heat-condensing portion. far. The vertical cooling plate according to any one of claims 1 to 4, wherein the front face of the vertical cooling plate of 24 201122113 includes alternating retaining ribs and simple grooves of Mixian Nana The ship is that the pipe is layered to the height of the retaining rib. 6. The vertical cooling plate according to claim 5, wherein the heat pipe is arranged such that an evaporation end portion thereof is enclosed in the retaining rib. 7. The vertical cooling plate according to any one of claims 1 to 6, wherein each of the heat pipe groups is arranged to extend near the front side of the plate body (10). Near the associated coolant passage, preferably along a direction perpendicular to the longitudinal axis. A vertical cooling plate according to any one of clauses 1 to 7, wherein each of the heat pipe groups is arranged to surround its evaporation end portion adjacent to the front face. In the metallic material, heat transfer from the front surface to the evaporation end portion is thereby produced by the metal material adjacent to the front surface. 9. The vertical cooling plate of any one of clauses 1 to 8, wherein the vertical cooling plate further comprises a first set of auxiliary heat pipes, the first set of auxiliary heat pipes being arranged The plate body extends so as to be perpendicular to the longitudinal axis of the coolant passage and parallel to the front surface to improve heat distribution along the width direction of the plate body. 10. The vertical cooling plate according to any one of claims 1 to 9, wherein the vertical cooling plate further comprises a second set of auxiliary heat pipes, the first group of auxiliary heat pipes being arranged The plate body extends so as to be parallel to the longitudinal axis of the coolant passage to improve heat distribution along the length of the plate body. 11. The vertical cooling plate according to any one of claims 1 to 1 wherein the plate body comprises a plurality of parallel internal coolant passages, each cold 25 201122113 agent passage Each has an associated heat pipe set, and the longitudinal axis of the coolant passage is arranged closer to the rear of the plate than to the front of the plate. 12. The vertical cooling plate according to any one of the preceding claims, wherein each heat pipe in the heat pipe group comprises an internal working medium and an internal anger arrangement, in particular a sintered metal The core arrangement and the internal groove arrangement are such that the working medium is returned from the condensing end portion to the evaporation end portion by capillary action. The vertical cooling plate according to any one of claims 12 to 12, characterized in that, for each heat pipe in the heat pipe group, the metal plate body includes a sweet start from the rear side And terminating in the respective blind holes in the vicinity of the front face, each of the heat members is fixed in its corresponding blind hole in a thermally conductive manner, preferably in a corresponding blind hole by tight fitting. The vertical cooling plate according to any one of claims 1 to 5, wherein the plate body is made of cast metal, and for each heat officer in the heat pipe group, The plate body comprises a correspondingly calibrated steel blind tube cast in the plate body and extending from the rear face and terminating near the front face. 'Each heat pipe is heat-retained in its corresponding manner The blind correction, preferably, is fixed in its corresponding blind hole by a close fit. A feature of the vertical cooling plate I according to any one of claims 1 to 3, wherein the plate body is made of cast metal, and the difference is that each heat pipe set in the heat pipe group is Cast in the metal plate body. 16. If you apply for a patent scope! The vertical cooling plate according to any one of the preceding claims, wherein each of the heat pipes is arranged such that a condensation end portion of the heat pipe is located from the outer casing 2 of the associated coolant passage to The distance of the circumference is more preferably located at a distance from the outer radius of the associated coolant passage = 26 201122113 5 to 10 mm. 7. A vertical cooling plate according to any of the preceding claims, wherein the plate body is made of ferrous metal and is made of cast iron or steel. 18. A crucible furnace comprising a plurality of vertical cooling plates according to any of the preceding claims. 19. The blast furnace according to claim 18, wherein the vertical cooling plate is made of ferritic iron or steel and is installed on the waist and/or belly of the blast furnace. Virtual. 27