CN109489411A - The coldplate of shaft furnace - Google Patents

Abstract

The present invention relates to the coldplates for shaft furnace, especially blast furnace.The coldplate of shaft furnace, the especially coldplate of blast furnace, with refractory liner, the cooling duct that can be loaded including cooling medium, wherein at least it is made of towards the front in furnace steel ingot, it is preferred that being produced with copper or low-alloy copper alloy, and with the groove for receiving and fixing refractory material, wherein, two various sizes of flute profiles are welded on each coldplate rolls section, its respective domed region is outwardly, it is used to form cooling duct, wherein lesser back side supplement section is equipped with hole, for receiving the end for the tubular joint being welded thereon, it is closed by lid the free end of the rolling section, the front of the coldplate is Chong Die with the corresponding portion of the laterally adjacent coldplate in adjacent cooling duct, it is respectively formed the closing lining of shaft furnace.Except the advantages of reducing copper consumption, more dense cooling structure is provided.

Description

The coldplate of shaft furnace

Technical field

The present invention relates to the coldplates for shaft furnace, especially blast furnace.

Background technique

The present invention relates to shaft furnace cooling plate (i.e. so-called shaft furnace cooling walls), and especially the blast furnace with refractory liner is cooling Plate (i.e. blast furnace cooling stave) comprising can loading cooling medium cooling duct, wherein at least towards in furnace front by steel ingot Composition, preferably production copper or low-alloy copper alloy, and the groove for receiving refractory material is provided.It is well known that it is this kind of cold But plate provides water-cooling system, and produces copper or low-alloy copper alloy.

It is well known that providing water-cooling system for such coldplate, and their copper or low-alloy copper alloy are produced, to mention For the smallest resistance, with heat dissipation.In the prior art, cooling duct is to forge or rolled steel ingot forms provide, as vertically prolonging The blind hole stretched, which passes through mechanical drill gun, which visits coldplate as, must have relatively large thickness, have to make cooling duct still Enough wall thickness are to bear the operating pressure of cooling medium.Since copper valence is high, the copper sheet of this thickness is expensive.Blind hole for Circular cross-section only has the smallest possible internal surface area.Therefore, for the heat exchange with cooling medium, the surface area of only very little can With, and the heat dissipation of only appropriateness.This leads to the high thermal stress of coldplate, and this negatively affects its service life.

Summary of the invention

The present invention, which solves the above problems, provides a kind of coldplate of shaft furnace, the cooling of the coldplate of shaft furnace, especially blast furnace Plate has refractory liner, including the cooling duct that cooling medium can load, wherein at least towards the front in furnace by steel ingot group At preferably being produced with copper or low-alloy copper alloy, and there is the groove for receiving and fixing refractory material, wherein Mei Geleng But two various sizes of flute profiles to be welded on plate rolls section, respective domed region outwardly, is used to form cooling duct, Wherein supplement section in the lesser back side is equipped with hole, for receiving the end for the tubular joint being welded thereon, the rolling section oneself It is closed by end by lid, the front of the coldplate is Chong Die with the corresponding portion of the laterally adjacent coldplate in adjacent cooling duct, It is respectively formed the closing lining of shaft furnace.

Further, have in the supplement part of cooling back from the outwardly projecting support of shielding.

Further, the inner wall of shaft furnace is connected with the bracket for surrounding tie rod, bracket and bracket be mutually aligned hole (6, 6), this some holes is by bolt break-through.

Have object configure above-mentioned coldplate in this way they can produce material expenditure and reduction manufacture expenditure with And the more low achievable medium throughput of the higher cooling capacity of cooling capacity is more easily installed than known in the art, wherein itself Heat absorption is limited, and service life can greatly prolong acquisition.As solution, it provides one for generating the cooling board slot in front end Part forms the hemispherical rolling part of relatively minimal thickness in middle section, can save a large amount of copper product with second Supplement dome area, can also outward dome rolling section cooling duct cross section deviate circular shape, thus provide it is higher Cooling effect.Other than the advantages of reducing copper consumption, providing more dense cooling structure is also its benefit.

Detailed description of the invention

Fig. 1 is the central cross-section of coldplate.

Fig. 2 is the sectional view that coldplate passes through conduit coupling.

Fig. 3 is the vertical section of the coldplate being mounted on shaft furnace wall interrupted twice.

Fig. 4 is the view from coldplate in rear apparent direction.

Appended drawing reference: front portion 1, cooling tube 2, supplement part 3, expansion slot 4, pillar 5, drilling 6, bolt 7, supporting element 8, inner wall 9, backfilling material 10, lid 11, conduit coupling 12, weld seam 13, weld seam 14.

Specific embodiment

A specific embodiment of the invention is further described with reference to the accompanying drawing.

In the section coldplate of Fig. 1, it is located in the center of its length, a front portion 1 is also shown and illustrates inside The copper or copper alloy of furnace are through molding slot 4 extending transversely until Free Surface, finally assembles, convenient for the fire resisting punching press of application Or sprayed on material, convenient for the burden of later adhesive force, or be conducive to the sprayed on material burden of later period bonding.It is effective in order to provide Cooling duct 2, supplement part 3 are connected to front portion 1 by weld seam 13, and supplement part 3 also rolls into slot, entirely across length Major part be equal to have and on the one hand improve entirely cooling stability from the vertically extending pillar 5 in center on the other hand, plate Convenient for assembling.In order to assemble, supporting element 8 is fixed on inner wall 9, and in the embodiment specifically welded, the supporting element 8 is set There is drilling 6.In order to realize assembling, by 5 introduction hole 6 of pillar.It is aligned with the drilling 6 on bracket 8.Then by the way that bolt 7 to be inserted into It is realized with being fixed in drilling 6, then, coldplate can be backfilled with backfilling material 10, then, as shown in Figure 1, cooling The surface of the front portion 1 of plate can be covered with fire resisting punching press or sprayed on material.

In order to provide an effective cooling tube 2, supplement part 3 is solder-connected to front portion 1, the supplement part 3 Also it is rolled into channel-shaped;However, it is consistent with pillar 5 on its most of length direction, it extends vertically and increases from its center.

Bracket 8 is fixed on shaft furnace inner wall 9 by the present embodiment by welding, and bracket is equipped with hole 6, on the one hand ensure that whole The stability of a coldplate, on the other hand convenient for its assembly, convenient for assembly.In order to realize the assembly, lattice framing 5 is introduced into bracket 8 The side being aligned with the hole 6 from bracket 8 is sufficient to 5 introduction hole 152mm of lattice framing, then, by the way that bolt 7 to be inserted into simultaneously It is fixed in hole 6 and realizes connection.

Fig. 2 also shows the cross section of coldplate, but region at its end.It is as shown in the figure front portion 1 and supplement portion Divide 3, they are linked together by 13 fixing compact of weld seam.By what is provided in one end insertion supplement section 3 of tubular joint 12 Kong Zhong, and connect by weld seam 14 with supplement section fixing compact.Fig. 3 show corresponding longitudinal section, especially with lid 11 With the both ends of tubular joint 12, in fact, what coldplate was not single use, but as the mould for being combined to bigger cooling surface Block carries out the installation of cooling element, and the front cross of coldplate is made to navigate to cooling duct, and only represents the one of cooling surface A element, it is Chong Die with the corresponding portion of adjacent coldplate.In this way.For example, in the conical section of shaft furnace plate armour, such as the furnace of shaft furnace Abdomen, furnace axis etc. can provide the compensation of different-diameter or armoring periphery, without being adjusted to bore by the width dimensions of coldplate Shape.The welding of front portion 1 and supplement part 3 forms coldplate or modularization cooling element, preferably by the side continuously welded Formula, it is ensured that the uniform of weld seam, zero defect, fluid tight configuration.Thermally conductive due to needing, front portion 1 is manufactured by copper or Cu rich alloy , and supplementing part 3 can be produced with cheaper material, but supplement the material that part 3 needs higher intensity.It should be noted that Be front portion 1 and supplement part 3 can weld.

Except the advantages of reducing copper consumption, more dense cooling structure is provided.

Claims (3)

1. the coldplate of shaft furnace, characterized in that have refractory liner, the cooling duct that can be loaded including cooling medium (2), wherein It is at least made of towards the front in furnace steel ingot, is preferably produced with copper or low-alloy copper alloy, and have for receiving and fixing The expansion slot of refractory material, wherein two various sizes of flute profile rollings section (1,3) are welded on each coldplate, it is respective Domed region outwardly, is used to form cooling duct (2), wherein the supplement part (3) at the lesser back side is equipped with hole, for receiving The free end of the end for the tubular joint (12) being welded thereon, the rolling section (1,3) is closed by lid (11), described cold But the front of plate is Chong Die with adjacent cooling duct (2) the laterally adjacent corresponding portion of coldplate, is respectively formed the closing of shaft furnace Lining.

2. coldplate according to claim 1, it is characterized in that supplement part (3) overleaf has from shielding (1) outward Support (5) outstanding.

3. coldplate according to claim 2, it is characterized in that supporting element (8) phase of the inner wall (9) of shaft furnace and pillar (5) Even, supporting element (8) and pillar (5) have the hole (6) being mutually aligned, which is penetrated through by bolt (7).