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CN-122003571-A - Heat insulating block for partition wall, heating furnace, and method for manufacturing partition wall

CN122003571ACN 122003571 ACN122003571 ACN 122003571ACN-122003571-A

Abstract

The invention provides a heat insulating block for partition wall, which uses inorganic fiber aggregate pad, and is easy to install to the top of the furnace, and the existing structure is not required to be disassembled, or the disassembly range of the existing structure is suppressed to be small, even if a pair of structures are formed on the top of the furnace, the installation can be easily performed. The heat insulating block for partition wall of the present invention comprises a laminated inorganic fiber aggregate mat, and further comprises a block fixing metal material on a surface of the heat insulating block for partition wall on the top side of the heating furnace, and a support member capable of being engaged with the block fixing metal material and capable of being engaged with a pair of structures on the top of the heating furnace, wherein the support member is configured to be switchable between a state in which the entire heat insulating block is located between the pair of structures and a state in which a part of the heat insulating block extends outside between the pair of structures.

Inventors

  • Qin Xiongzuo
  • YUKIO KOBAYASHI
  • GUI XIANGYU

Assignees

  • 马福特克有限公司

Dates

Publication Date
20260508
Application Date
20250812
Priority Date
20240903

Claims (10)

  1. 1. A heat insulating block for partition walls, comprising a laminated inorganic fiber aggregate mat, and The heat insulation block for partition wall is provided with a block fixing metal piece on the surface of the furnace top side of the heating furnace, The heat insulating block for partition wall further comprises a support member which can be engaged with the block fixing metal fitting and can be engaged with a pair of structural bodies on the ceiling of the heating furnace, The support member is configured to be switchable between a state in which the support member is entirely located between the pair of structural bodies and a state in which a part of the support member extends to the outside between the pair of structural bodies.
  2. 2. The heat insulating block for partition wall according to claim 1, wherein, The inner surfaces of the pair of structural bodies are respectively arranged at positions approximately coincident with the edges of the surfaces on the furnace top side or at positions outside the surfaces on the furnace top side, The support member is configured to be switchable between a state of being housed inside the surface on the roof side and a state of being extended outside the surface on the roof side.
  3. 3. The heat insulating block for partition wall according to claim 1, wherein, The inner surfaces of the pair of structural bodies are respectively arranged on the inner sides of the surfaces on the furnace top side, The support member is configured to be capable of being switched between a state of being positioned between the pair of structural bodies and a state of being extended to the outside between the pair of structural bodies in a state of being housed inside the surface on the roof side.
  4. 4. The heat insulating block for partition wall according to claim 1, wherein, The support member is rotatably engaged with a shaft extending from the block fixing metal member in a furnace top direction of the heating furnace, The support member is configured to be capable of switching between a state of being positioned between the pair of structural bodies and a state of being extended to the outside between the pair of structural bodies by rotating about the shaft.
  5. 5. The heat insulating block for partition wall according to claim 1, wherein, The support member includes a fixed support member connected to a shaft extending from the block fixing metal fitting in a furnace top direction of the heating furnace, and at least one movable support member connected to the fixed support member; The movable support member is rotatably engaged with another shaft extending from the fixed support member in the furnace top direction of the heating furnace, The movable support member is configured to be capable of switching between a state of being positioned between the pair of structural bodies and a state of being extended to the outside between the pair of structural bodies by rotating about the other shaft.
  6. 6. The heat insulating block for partition wall according to claim 1, wherein, The support member includes a fixed support member connected to a shaft extending from the block fixing metal fitting in a furnace top direction of the heating furnace, and at least one movable support member connected to the fixed support member; the movable support member is configured to be capable of switching between a state of being positioned between the pair of structural bodies and a state of being extended to the outside between the pair of structural bodies by sliding with respect to the fixed support member.
  7. 7. The heat insulating block for a partition wall according to claim 1, wherein the support member is suspended from the pair of structural bodies by engagement with the pair of structural bodies.
  8. 8. A partition wall comprising a plurality of the heat insulating blocks for partition wall according to any one of claims 1 to 7 in the furnace width direction.
  9. 9. A heating furnace provided with the partition wall according to claim 8.
  10. 10. A method for manufacturing a partition wall by suspending the partition wall heat insulating block according to any one of claims 1 to 7 from the pair of structural bodies on the top of the heating furnace, the method comprising: An insertion step of inserting the support member between the pair of structural bodies in a state where the support member is located between the pair of structural bodies, and And an engagement step of engaging the support member with the pair of structures by switching the support member to a state extending to the outside between the pair of structures after the insertion step.

Description

Heat insulating block for partition wall, heating furnace, and method for manufacturing partition wall Technical Field The invention relates to a heat insulation block for a partition wall, the partition wall, a heating furnace and a manufacturing method of the partition wall. Background Generally, industrial furnaces include continuous industrial furnaces and batch-type industrial furnaces. Among them, in a continuous heat treatment furnace for performing a large number of continuous heat treatments on steel materials, the furnace internal volume is increased and the furnace length is also increased, and partition walls may be provided in the furnace for various purposes such as heat treatment for preheating, heating, soaking, and cooling the steel materials in stages, or for increasing the residence time of hot air in the furnace to improve the heat efficiency, and the like. As an example of such a partition wall, there is a dry partition wall. As a dry partition wall, a partition wall structure of an industrial furnace is known, which includes a heat-resistant block having a support metal at one end in a longitudinal direction of a molded body made of a ceramic fiber blanket, and a receiving member engageable with the support metal provided at a top of a furnace shell (patent document 1). Prior art literature Patent literature Patent document 1 Japanese patent No. 3398534 Disclosure of Invention Problems to be solved by the invention However, the technique of patent document 1 has a problem that the work space of the furnace roof is limited by hanging metal objects, supporting beams, and the like, and it is difficult to perform fine works such as fastening bolts between the receiving member and the supporting metal objects of the heat-resistant block. Further, if the hole forming of the receiving member is not performed with high accuracy and welding of the existing structure of the receiving member and the roof is not performed accurately, there is a problem that the position of the bolt of the support metal does not coincide with the position of the hole of the receiving member when the heat-resistant block is mounted. On the other hand, there may be considered a method of fastening the receiving member and the bolts in advance and then fixing the receiving member to the roof rail, but the roof rail is limited in space and requires lifting the partition wall from the inside of the furnace for construction, which is difficult to achieve for two reasons. (1) Fig. 1 shows a cross-sectional view in the furnace width direction of a furnace roof portion of a heating furnace. A plurality of hanger metal members 14 are suspended from the roof beams 12, and a roof refractory 16 is formed around the hanger metal members 14. The receiving member 18 is welded to the upper portion of the hanger metal 14 as shown, for example. The method of inserting the heat-resistant block from below in a state where the receiving member 18 and the bolt are fastened in advance has a problem in that the receiving member 18 interferes with the hanging metal piece 14, and thus the insertion is impossible. (2) Fig. 2 shows a longitudinal section through the roof portion of the heating furnace. A plurality of hanger metal members 14 are suspended from the roof beams 12, and a roof refractory 16 is formed around the hanger metal members 14. In this case, the receiving member 18 is welded to the roof beam 12, for example. If the heat-resistant block is inserted from below in a state where the receiving member 18 and the bolts are fastened in advance, the furnace top refractory 16 within the length range of the receiving member 18 needs to be disassembled in the furnace length direction, which has a problem that the scale of the disassembly work is large. As shown in fig. 3, a pair of structures 19 (four structures 19 are shown in fig. 3, and any two adjacent structures 19 are a pair of structures 19) are provided on an existing structure (for example, a beam 12) at a dismantling portion of a furnace roof of the heating furnace, and a receiving member is fixed to the pair of structures 19. In addition, the distance between the pair of structural bodies 19 may be narrower than the surface of the heat-resistant block on the furnace top side. In this embodiment, the method of inserting the heat-resistant block from below in a state where the receiving member and the bolt are fastened has a problem in that the receiving member interferes with the pair of structures 19, and thus the insertion is impossible. In fig. 3, the direction extending from the lower left to the upper right is the furnace width direction, and the direction extending from the lower right to the upper left is the furnace length direction. In addition, the side wall 17 on one side in the furnace width direction is shown, while the side wall on the other side is omitted. As described above, the present invention has an object to provide a heat insulating block for partition