JP2004098155A - Chamber - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a chamber in which a high temperature material-conveying course can be held in non-oxidizing atmosphere. <P>SOLUTION: A lower part panel 13, side part panels 15 and an upper part panel 17 having an inspection cover 18 are airtightly fixed to constitute a structural body 22 surrounding the conveying course of a strip 3 in the peripheral direction. Table rolls 19 are inserted into the opening hole parts 14 formed at each side part panel 15 so that these end parts protrude to the outer parts of the structural body 22 and further, the end parts of the table rolls 19 are pivotally attached to bearing boxes 20 and elastic sealing members 21 surrounding portions near the shaft ends of the table rolls 19 in the peripheral direction are airtightly fixed to the bearing boxes 20 and the side part panels 15. In the passages formed in the respective inner parts of these panels 13, 15, 17 and the inspection cover 18, fluid for cooling is continuously supplied. In this way, the plastic deformation is started near the mutually fixed portions of the panels 13, 15, 17 caused by heat-deformation to hold the conveying course of the strip 3 in the non-oxidizing atmosphere. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a chamber.
[0002]
[Prior art]
As an example of a conventional twin-roll caster, there is one disclosed in Patent Document 1.
[0003]
[Patent Document 1]
JP-A-8-300108
The twin-roll caster disclosed in Patent Document 1 sandwiches a pair of cooling rolls 1, a pair of side weirs 2 attached to the cooling roll 1, and a strip 3 cast by the cooling roll 1, as shown in FIG. And a pair of pinch rolls 4 to be fed to the next step such as roll forming, and left and right side walls facing the edge of the strip 3 in the width direction of the strip. An enclosure 5 surrounding the transport path, a threading table 6 installed inside the enclosure 5 and a plurality of table rolls 7 are provided.
[0005]
In addition to this, a seal member 8 that comes into contact with the outer peripheral surface of each cooling roll 1 is provided at an upstream portion in the strip 3 moving direction of the enclosure 5, and a seal member 9 that comes into contact with the outer peripheral surface of each pinch roll 4 is It is provided on the downstream portion of the surrounding housing 5 in the moving direction of the strip 3.
[0006]
The cooling rolls 1 are arranged horizontally and parallel to each other so that the roll gap can be adjusted in accordance with the thickness of the strip 3 to be cast.
[0007]
The rotation direction and the speed of the cooling roll 1 are set such that each outer peripheral surface moves at a constant speed from the upper side toward the roll gap.
[0008]
The cooling roll 1 is formed such that cooling water can flow therethrough.
[0009]
One side weir 2 is in surface contact with one end surface of each cooling roll 1, and the other side weir 2 is in surface contact with the other end surface of each cooling roll 1, and is surrounded by the side weir 2 and the cooling roll 1. When a molten metal is supplied to the space to be melted, the metal forms a molten metal pool 10.
[0010]
When the molten metal pool 10 is formed and the cooling roll 1 is rotated while cooling water is circulated inside the cooling roll 1, the metal is solidified on the outer peripheral surface of the cooling roll 1 and the strip 3 is moved downward from the gap between the rolls. It is sent out.
[0011]
The threading table 6 can be set to one of a state in which the strip 3 fed from the cooling roll 1 is guided toward the pinch roll 4 and a state in which the strip 3 does not contact the strip 3.
[0012]
Further, the table roll 7 is arranged to support the strip 3 going to the pinch roll 4 side via the threading table 6 from below.
[0013]
In the lower part of the surrounding housing 5, a scrap box 11 is arranged so as to be located directly below the cooling roll 1, and the strip 3 sent out from the cooling roll 1 in an incomplete form at the start of casting is collected in the scrap box 11. I can do it.
[0014]
In the case of recovering the strip 3 in an incomplete form, after the strip 3 assumes a perfect state with the stabilization of the casting conditions, the roll gap of the cooling roll 1 is slightly enlarged to return to the original state. Return the roll gap.
[0015]
At this time, only while the roll gap is enlarged, solidification of the molten metal by the cooling roll 1 is suppressed, and the incomplete tip portion of the strip 3 is cut off from the strip 3 of the perfect shape and falls into the scrap box 11. Become like
[0016]
Further, an inert gas (nitrogen gas) G is supplied to the inside of the enclosure 5 and the scrap box 11 through the pipe 12, and the interior of the enclosure 5 is kept in a non-oxidizing atmosphere, and is kept in a high-temperature state. The oxidation of the surface of the strip 3 is prevented.
[0017]
The inert gas G is supplied to the outside by a seal member 8 interposed between the enclosure 5 and the cooling roll 1 and a seal member 9 interposed between the enclosure 5 and the pinch roll 4. Outflow is suppressed.
[0018]
[Problems to be solved by the invention]
However, in the twin-roll caster shown in FIG. 5, thermal deformation occurs in the surrounding housing 5 surrounding the strip 3, which is a high-temperature material, and further, the components of the surrounding housing 5 undergo plastic deformation due to stress concentration caused by the thermal deformation. Therefore, there is a concern that the transport path of the strip 3 cannot be maintained in the non-oxidizing atmosphere.
[0019]
SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and has as its object to provide a chamber capable of holding a high-temperature material transfer path in a non-oxidizing atmosphere.
[0020]
[Means for Solving the Problems]
In order to achieve the above object, the chamber according to claim 1 of the present invention includes a panel having a double-walled structure in which a passage through which a cooling fluid can flow is formed. The panels adjacent to each other are hermetically fixed by being arranged so as to surround in the circumferential direction.
[0021]
The chamber according to claim 2 of the present invention has a lower panel of a double wall structure in which a passage through which a cooling fluid can flow is formed, a pair of side panels, and an inspection port penetrating vertically. An upper panel having a double-walled structure in which a passage through which a cooling fluid can flow is formed, an inspection port from above the panel, and a passage through which the cooling fluid can flow in a shape capable of covering the periphery thereof. An inspection lid having a double wall structure formed therein, a panel-side sealing member provided on the upper surface of the upper panel over the entire periphery of the inspection port and forming a groove extending in the circumferential direction, and stored in the groove of the sealing member And a lid-side sealing member provided over the entire periphery of the peripheral portion of the inspection lid and capable of being fitted into the groove, wherein the lower panel, the side panel, and the upper panel are provided. , High-temperature material transfer path The adjacent panels disposed so as to surround the circumferential direction are fixed airtightly.
[0022]
The chamber according to claim 3 of the present invention has a lower panel and an upper panel having a double-walled structure in which a passage through which a cooling fluid can flow is formed, and a plurality of openings penetrating in a lateral direction. A pair of side panels formed therein with a passage through which a working fluid can flow, a table roll that can be inserted into the opening, a shaft box that can pivotally support the end of each table roll, and an end of each table roll. And a resilient sealing member surrounding the portion in the circumferential direction. The lower panel, the side panel, and the upper panel are arranged so as to circumferentially surround the high-temperature material conveying path, and the adjacent panels are hermetically fixed. , A table roll is inserted into each of the opposing openings so that the end protrudes from the side panel to the anti-high-temperature material transfer path side, and then the axle box is arranged outside the space surrounded by each panel, To the axle box Pivotally supported ends of Bururoru, are fixed to the other end the entire circumference of the elastic seal member at one end the entire circumference was fixed to the axle box and the resilient sealing member to the side panel so as to surround the opening of the.
[0023]
The chamber according to a fourth aspect of the present invention has a lower panel having a double wall structure in which a passage through which a cooling fluid can flow is formed, and a plurality of openings penetrating laterally, and through which the cooling fluid flows. A pair of side panels each having a passage formed therein, a table roll that can be inserted into the opening, an axle box that can pivotally support the end of each table roll, and a circumference around the end of each table roll. An upper panel having a double-walled structure having an elastic seal member surrounding in a direction, an inspection port penetrating vertically and having a passage through which a cooling fluid can flow, an inspection port from above the panel, and A double-walled inspection lid having a shape capable of covering the periphery thereof and having a passage through which a cooling fluid can flow, provided on the upper surface of the upper panel over the entire periphery of the inspection port, and extending in the circumferential direction; Panel forming grooves A seal member, a sealing material stored in the groove of the seal member and having fluidity, and a lid-side seal member provided over the entire periphery of a peripheral portion of the inspection lid and capable of being fitted into the groove, The lower panel, the side panels, and the upper panel are arranged so as to circumferentially surround the high-temperature material conveyance path, and airtightly adheres the adjacent panels. After inserting it so as to protrude from the panel to the anti-high-temperature material transfer path side, arrange the axle box outside the space surrounded by each panel, pivotally support the end of the table roll to the axle box, and use the elastic seal. The entire periphery of one end of the member is fixed to the shaft box, and the entire periphery of the other end of the elastic seal member is fixed to the side panel so as to surround the opening.
[0024]
The chamber according to claim 5 of the present invention has a center of curvature near the mutually fixed portion between the lower panel and the side panel and near the mutually fixed portion between the upper panel and the side panel when viewed from the high-temperature material conveying direction. Are set in an arc shape located in a space surrounded by these panels.
[0025]
The chamber according to claim 6 of the present invention uses a particulate sealing material.
[0026]
The chamber according to claim 7 of the present invention uses a liquid sealing material.
[0027]
In the chamber according to claim 1 of the present invention, the cooling fluid is continuously supplied to a passage formed inside the panel to suppress thermal deformation of the panel due to transport of a high-temperature material, Avoid plastic deformation near the part where they are fixed to each other.
[0028]
In any of the chambers according to claims 2 to 4 of the present invention, the cooling fluid is continuously supplied to passages formed inside each of the lower panel, the side panel, and the upper panel. In addition, the thermal deformation of the panel due to the transport of the high-temperature material is suppressed, and the plastic deformation near the fixed portion between the panels is avoided.
[0029]
Further, in any one of the chambers according to the second and fourth aspects of the present invention, the cooling fluid is continuously supplied to the passage formed inside the inspection lid, thereby causing the high-temperature material to be transported. Inhibits thermal deformation of the inspection lid.
[0030]
In addition, the lid-side sealing member is sunk into the sealing material stored in the groove between the panel-side sealing members, and the airtightness between the upper panel and the inspection lid is maintained by these sealing members and the sealing material. I do.
[0031]
Further, in any one of the chambers according to the third and fourth aspects of the present invention, the entire circumference of one end of the elastic seal member surrounding the vicinity of the end of the table roll is fixed to the shaft box, and the other ends of the elastic seal member are fixed. The entire circumference of the end is fixed to the side panel so as to surround the opening, and the high-temperature material conveying path is blocked from the outside air.
[0032]
In the chamber according to claim 5 of the present invention, the vicinity of the mutually fixed portion of each panel is formed in an arc shape having an appropriate curvature to reduce stress concentration caused by thermal deformation at the mutually fixed portion, and Avoid plastic deformation.
[0033]
In the chamber according to claim 6 of the present invention, the sealing material in the form of powder is stored in the groove of the panel-side sealing member to reduce the consumption of the sealing material.
[0034]
In the chamber according to claim 7 of the present invention, the sealing material in a liquid state is stored in the groove of the panel-side sealing member to facilitate the filling operation of the sealing material into the groove.
[0035]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
[0036]
FIGS. 1 to 4 show an embodiment of a chamber according to the present invention. This chamber comprises a lower portion disposed below a strip 3 which moves substantially horizontally to a pinch roll 4 (see FIG. 5). A pair of side panels 15 having a plurality of openings 14 penetrating laterally and having lower edges air-tightly fixed to left and right edges of the lower panel 13 so as to face the side edges of the strip 3; An upper panel 17 having an inspection port 16 penetrating vertically and having the left and right edges air-tightly fixed to the upper edge of the side panel 15; and the inspection port 16 of the upper panel 17 and its periphery can be covered. An inspection lid 18 having a shape, a table roll 19 that can be inserted into the opening 14, an axle box 20 that pivotally supports the end of each table roll 19, and an elastic seal member provided near the end of each table roll 19. 21 and .
[0037]
Each of the panels 13, 15, 17 constitutes a structure 22 that circumferentially surrounds the transport path of the strip 3 (high-temperature material transport path).
[0038]
The left and right edges of the lower panel 13 connected to the side panel 15 and the left and right edges of the upper panel 17 connected to the side panel 15 have the center of curvature located inside the structure 22 when viewed from the moving direction of the strip 3. Is set to an arc shape.
[0039]
That is, by forming the vicinity of the mutually fixed portion between the panels 13 and 17 and the panel 15 into an arc shape having an appropriate curvature, stress concentration caused by thermal deformation at the mutually fixed portion is reduced, and plastic deformation of the structure 22 is reduced. Can be avoided.
[0040]
The structure 22 is supported via a bracket (not shown) on a gantry 23 installed on the floor of the building, and is incorporated as a part of the enclosure 5 (see FIG. 5) of the twin-roll casting machine. .
[0041]
Further, at the front end and the rear end of the structure 22, end panels 25 each having a passage port 24 through which the strip 3 can pass are hermetically fixed to the ends of the panels 13, 15, and 17.
[0042]
One end panel 25 is connected to a structure (not shown) located on the cooling roll 1 (see FIG. 5) side, and the other end panel 25 is a structure (not shown) located on the pinch roll 4 side. )It is connected to the.
[0043]
Each of the panels 13, 15, 17, 25 and the inspection lid 18 has a double wall structure in which a passage through which water (cooling fluid) 26 can flow is formed.
[0044]
The double wall structure will be described by taking the side panel 15 as an example. The side panel 15 has a pair of wall plates 27 and 28 in which a plurality of openings 14 are formed in a row near the lower edge and are formed in a line. And an annular liquid-tight wall 29 located between the two wall plates 27 and 28 so as to surround the opening 14 and fixed to the wall plates 27 and 28, and fixed to the peripheral edges of the two wall plates 27 and 28 over the entire circumference. It has a liquid-tight wall 30 and a partition wall 31 located near the upper edge between the two wall plates 27 and 28 and forming a bent passage.
[0045]
An outlet 32 for supplying water 26 to the outside from one upper corner of the side panel 15 is formed in the wall plate 27.
[0046]
The liquid-tight wall 30 has an inlet 33 which is located near the lower corner of the side panel 15 facing the hole 32 of the outlet 32 and through which water 26 flows into the side panel 15. Has been drilled.
[0047]
The shape of the partition wall 31 is set so that the water 26 flowing into the side panel 15 from the inflow port 33 is guided to the outflow port 32 while flowing in the front-back direction of the side panel 15.
[0048]
As shown in FIG. 4, the upper panel 17 has a pair of wall plates 34, 35 parallel to each other and an inspection port 16 formed in a shape suitable for work, and surrounds the inspection port 16 between the two wall plates 34, 35. And a liquid-tight wall 36 fixed to the wall plates 34 and 35, a liquid-tight wall 37 fixed to the peripheral edges of both wall plates 34 and 35 over the entire circumference, and between the two wall plates 34 and 35. And a partition wall (not shown). These members form a passage through which the water 26 flows inside the closed space.
[0049]
The end panel 25 has members corresponding to the above-described wall plates 34 and 35, liquid-tight walls 36 and 37, and partition walls, and forms a passage through which the water 26 flows inside the closed space by these members. are doing.
[0050]
As shown in FIG. 4, the inspection lid 18 includes a pair of wall plates 38 and 39 parallel to each other, a liquid-tight wall 40 fixed to the peripheral edges of the two wall plates 38 and 39 over the entire circumference, and a space between the two wall plates 38 and 39. And a partition wall (not shown) provided in the closed space, and these members form a passage through which the water 26 flows inside the closed space.
[0051]
The lower panel 13 has members corresponding to the above-described wall plates 38 and 39, the liquid-tight wall 40, and the partition wall. These members form a passage through which the water 26 flows inside the closed space. I have.
[0052]
That is, when the high-temperature strip 3 moves inside the structure 22, the water 26 is continuously supplied to each of the panels 13, 15, 17, 25 and the passage inside the inspection lid 18. Is suppressed, and plastic deformation of the structure 22 can be avoided.
[0053]
A panel-side sealing member 43 is fixed to the upper surface of the upper panel 17 so as to surround the entire periphery of the inspection port 16 and form two grooves 42 in which the sealing material 41 can be stored.
[0054]
As the sealing material 41, an amorphous substance having fluidity, that is, a powdery material such as sand, or a liquid such as water is used.
[0055]
When a powder such as sand is used for the sealing material 41, the replenishment of the sealing material 41 can be reduced because the material is not consumed by evaporation.
[0056]
When a liquid such as water is used for the sealing material 41, the sealing material 41 has excellent fluidity, so that the sealing material 41 can be easily and uniformly refilled into the groove 42.
[0057]
A lid-side seal member 44 that can be fitted into each of the grooves 42 is fixed to the entire periphery of the lower surface of the inspection lid 18 over its entire periphery.
[0058]
One end of the inspection lid 18 is fastened to a support shaft 45 that is disposed near the inspection port 16 and extends substantially horizontally in the lateral direction.
[0059]
The support shaft 45 is pivotally supported by a fixed structure (not shown) provided on the side of the structure 22.
[0060]
A cylinder (not shown) is connected to an end of the support shaft 45 via a crank 46.
[0061]
Thereby, according to the operation of the cylinder, the inspection lid 18 is inserted from the position where the lid-side sealing member 44 is fitted into the entire circumference of the groove 42 and is inserted into the sealing material 41, and the inspection opening 16 is airtightly closed. It rotates between the position where the inspection port 16 is opened at a distance.
[0062]
In addition, since the panel-side sealing member 43 forming the two grooves 42 and the lid-side sealing member 44 that can be fitted into each groove 42 multiplex the air-tightness maintenance boundary, the air-tightness of the inspection lid 18 with respect to the structure 22 is provided. Can be improved.
[0063]
The table roll 19 is inserted into the opening 14 of the side panel 15 so that its end protrudes outside the structure 22.
[0064]
The table roll 19 is formed so that water 26 can be circulated therein so that the strip 3 can be cooled.
[0065]
The axle box 20 is attached to the beam 47 of the gantry 23 so as to correspond to each table roll 19, and pivotally supports the end of each table roll 19.
[0066]
Further, a motor 48 for driving the table roll 19 is attached to the axle box 20 on one side of the structure 22.
[0067]
The elastic seal member 21 is arranged so as to surround each end of the table roll 19 in the circumferential direction.
[0068]
A metal bellows is used for the elastic seal member 21.
[0069]
The entire circumference of one end of the elastic seal member 21 is hermetically fixed to the end face of the shaft box 20, and the entire circumference of the other end of the elastic seal member 21 surrounds the opening 14 with respect to the side panel 15 in the circumferential direction. The inert gas G (see FIG. 5) fed into the structure 22 is prevented from flowing out through the opening 14 to the outside by the elastic seal member 21.
[0070]
As described above, in the chamber shown in FIGS. 1 to 4, the water 26 is continuously supplied to the passages formed inside the lower panel 13, the side panel 15, the upper panel 17, and the end panel 25. Since the thermal deformation of the panels 13, 15, 17, and 25 caused by the transport of the strip 3 is suppressed, plastic deformation does not occur in these members, and therefore, the transport path of the strip 3 inside the structure 22 is non-oxidized. The atmosphere can be maintained.
[0071]
Further, the water 26 is continuously supplied to the passage formed inside the inspection lid 18 to suppress the thermal deformation of the inspection lid 18, and the sealing material 41 stored in the groove 42 between the panel-side sealing members 43 is formed. Since the lid-side sealing member 44 is sunk into the lid, airtightness between the upper panel 17 and the inspection lid 18 can be maintained.
[0072]
Further, the vicinity of the end of the table roll 19 is surrounded by an elastic seal member 21, one end of the entire elastic seal member 21 is fixed to the axle box 20, and the entire other end of the elastic seal member 21 surrounds the opening 14. Since it is fixed to the side panel 15, even if a motor 48 for driving the table roll 19 is provided outside the structure 22, the transport path of the strip 3 can be shielded from the outside air.
[0073]
It should be noted that the chamber of the present invention is not limited to only the above-described embodiment, and it is needless to say that changes can be made without departing from the spirit of the present invention.
[0074]
【The invention's effect】
As described above, according to the chamber of the present invention, the following various excellent effects can be obtained.
[0075]
(1) In the chamber according to the first aspect of the present invention, the cooling fluid is continuously supplied to the passage formed inside the panel to suppress the thermal deformation of the panel due to the transport of the high-temperature material. Therefore, plastic deformation does not occur near the portion where the panels are fixed to each other, and the high-temperature material transfer path can be maintained in an oxidation-free atmosphere.
[0076]
(2) In any of the chambers according to claims 2 to 4, the cooling fluid is continuously supplied to passages formed inside the lower panel, the side panel, and the upper panel. As a result, the thermal deformation of the panel caused by the transport of the high-temperature material is suppressed, so that no plastic deformation occurs near the portion where the panels are fixed, and the high-temperature material transport path can be maintained in a non-oxidizing atmosphere.
[0077]
(3) In any one of the chambers according to the second and fourth aspects of the present invention, the cooling fluid is continuously supplied to the passage formed inside the inspection lid, thereby causing the high-temperature material to be transported. Thermal deformation of the inspection lid, and in addition to this, the lid-side sealing member is sunk into the sealing material stored in the groove between the panel-side sealing members, so that the airtightness between the upper panel and the inspection lid Can be held.
[0078]
(4) In any one of the chambers according to the third and fourth aspects of the present invention, the entire circumference of one end of the elastic seal member surrounding the vicinity of the end of the table roll is fixed to the shaft box, and Since the entire periphery of the other end is fixed to the side panel so as to surround the opening, the high-temperature material transport path can be shut off from the outside air.
[0079]
(5) In the chamber according to the fifth aspect of the present invention, since the vicinity of the mutually fixed portion of each panel is formed in an arc shape having an appropriate curvature, stress concentration due to thermal deformation at the mutually fixed portion is reduced. As a result, the plastic deformation of the panel can be avoided.
[0080]
(6) In the chamber according to claim 6 of the present invention, since the powdery and granular sealing material is stored in the groove of the panel-side sealing member, the consumption of the sealing material can be reduced.
[0081]
(7) In the chamber according to the seventh aspect of the present invention, since the liquid sealing material is stored in the groove of the panel-side sealing member, the operation of filling the groove with the sealing material can be easily performed.
[Brief description of the drawings]
FIG. 1 is a perspective view showing an example of an embodiment of a chamber of the present invention.
FIG. 2 is a partially cut perspective view showing a state in which an inspection lid related to FIG. 1 is opened.
FIG. 3 is a perspective view showing an internal structure of a side panel related to FIG. 1;
FIG. 4 is a partial cross-sectional view showing an upper panel and an inspection lid related to FIG. 1;
FIG. 5 is a conceptual diagram showing an example of a conventional twin-roll caster.
[Explanation of symbols]
3 Strip (high temperature material)
13 Lower Panel 14 Opening 15 Side Panel 16 Inspection Port 17 Upper Panel 18 Inspection Cover 19 Table Roll 20 Bearing 21 Elastic Seal Member 26 Water (Cooling Fluid)
41 sealing material 42 groove 43 panel side sealing member 44 lid side sealing member

Claims (7)

A panel having a double-walled structure in which a passage through which a cooling fluid can flow is provided, and the panels are arranged so as to surround the high-temperature material conveying path in a circumferential direction, and the panels adjacent to each other are hermetically fixed. A chamber. A lower panel having a double wall structure in which a passage through which a cooling fluid can flow is formed, and a pair of side panels, and an inspection port penetrating vertically and a passage through which a cooling fluid can flow inside. An upper panel of a double wall structure formed, an inspection port from above the panel, and an inspection lid of a double wall structure formed in a shape capable of covering the periphery thereof and a passage through which a cooling fluid can flow. A panel-side sealing member provided on the upper surface of the upper panel over the entire periphery of the inspection port and forming a groove extending in the circumferential direction; a sealing material stored in the groove of the sealing member and having fluidity; And a lid-side sealing member that is provided over the entire periphery of the peripheral portion and that can be fitted in the groove so that the lower panel, the side panel, and the upper panel surround the high-temperature material transport path in the circumferential direction. Arrange and adjacent Chamber, characterized in that it has secured the that panel airtight. A lower panel having a double wall structure in which a passage through which a cooling fluid can flow is formed, and an upper panel, and a plurality of openings penetrating laterally and a passage through which a cooling fluid can flow is formed inside. A pair of side panels, a table roll that can be inserted into the opening, a shaft box that can pivotally support the end of each table roll, and an elastic seal member that circumferentially surrounds the vicinity of the end of each table roll. The lower panel, the side panel, and the upper panel are disposed so as to circumferentially surround the high-temperature material conveying path, and airtightly adheres adjacent panels, and a table roll is provided at each of the opposed openings. Insert the end so that it protrudes from the side panel to the anti-high-temperature material transfer path side, and arrange the axle box outside the space surrounded by each panel, and pivot the end of the table roll to the axle box. And elastic Chamber, characterized in that the other end the entire circumference of the fixed and and the elastic sealing member one end the entire circumference of the seal member to the axle box fixed to the side panels so as to surround the opening of the. A lower panel having a double-walled structure in which a passage through which a cooling fluid can flow is formed, and a pair of side portions having a plurality of openings penetrating laterally and having a passage through which a cooling fluid can flow inside. A panel, a table roll that can be inserted into the opening, an axle box that can pivotally support the end of each table roll, and an elastic seal member that circumferentially surrounds the vicinity of the end of each table roll; An upper panel having a double-wall structure having an inspection port and a passage through which a cooling fluid can flow, and an inspection port from above the panel, and a shape capable of covering the periphery of the inspection port, and the cooling fluid is provided. A double-walled inspection lid having a flowable passage formed therein, a panel-side sealing member provided on the upper panel upper surface over the entire periphery of the inspection port, and forming a circumferentially extending groove; In the groove of the member The lower panel, the side panel, and the upper panel, comprising: a sealing material that is retained and has fluidity; and a lid-side sealing member that is provided around the entire periphery of the inspection lid and that can be fitted into the groove. Are arranged so as to surround the high-temperature material transfer path in the circumferential direction, and the adjacent panels are air-tightly fixed. After being inserted so as to protrude, an axle box is arranged outside the space surrounded by each panel, the end of the table roll is pivotally supported on the axle box, and the entire circumference of one end of the elastic seal member is fixed to the axle box. A chamber, wherein the entire periphery of the other end of the elastic seal member is fixed to the side panel so as to surround the opening. The vicinity of the part where the lower panel and the side panel are fixed together and the part where the upper panel and the side panel are fixed together are located in the space surrounded by these panels when viewed from the high-temperature material conveying direction. The chamber according to claim 1, wherein the chamber has an arc shape. The chamber according to claim 2, wherein a powdery sealing material is used. The chamber according to claim 2, wherein a liquid sealing material is used.

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