CN110657667A - Continuous heating furnace, hanging wall for continuous heating furnace and manufacturing method of hanging wall - Google Patents

Continuous heating furnace, hanging wall for continuous heating furnace and manufacturing method of hanging wall Download PDF

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Publication number
CN110657667A
CN110657667A CN201910856215.6A CN201910856215A CN110657667A CN 110657667 A CN110657667 A CN 110657667A CN 201910856215 A CN201910856215 A CN 201910856215A CN 110657667 A CN110657667 A CN 110657667A
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China
Prior art keywords
heating furnace
hanging
continuous heating
hanging wall
wall
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Granted
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CN201910856215.6A
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Chinese (zh)
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CN110657667B (en
Inventor
白泽华
张东红
彭齐勇
仇明山
郝晋忠
王鹏洲
王更超
杜辉杰
尚乐
孙泽红
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Taiyuan Iron & Steel Engineering Technology Co Ltd
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Taiyuan Iron & Steel Engineering Technology Co Ltd
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Priority to CN201910856215.6A priority Critical patent/CN110657667B/en
Publication of CN110657667A publication Critical patent/CN110657667A/en
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
    • F27B9/30—Details, accessories, or equipment peculiar to furnaces of these types
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D1/00—Casings; Linings; Walls; Roofs
    • F27D1/0003—Linings or walls
    • F27D1/0033—Linings or walls comprising heat shields, e.g. heat shieldsd
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D1/00—Casings; Linings; Walls; Roofs
    • F27D1/02—Crowns; Roofs
    • F27D1/021—Suspended roofs
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D1/00—Casings; Linings; Walls; Roofs
    • F27D1/04—Casings; Linings; Walls; Roofs characterised by the form, e.g. shape of the bricks or blocks used
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
    • F27B9/30—Details, accessories, or equipment peculiar to furnaces of these types
    • F27B2009/305—Particular conformation of the furnace

Abstract

The invention discloses a continuous heating furnace, which comprises a heating chamber and an outlet sealing door used for discharging heated objects, wherein the heating chamber comprises a plurality of heating zones, the heating furnace also comprises a hanging wall made of refractory materials, the hanging wall is arranged between the last heating zone of the continuous heating furnace and the outlet sealing door and is suspended at the top of the heating chamber, the width of the hanging wall is equal to that of a hearth, and the vertical height of the hanging wall suspended from the top of the heating chamber does not prevent the heated objects from passing through and being discharged from the outlet sealing door. The invention also provides a hanging wall for the continuous heating furnace. The invention also provides a manufacturing method of the hanging wall for the continuous heating furnace. According to the invention, the hanging wall made of the refractory material is arranged behind the last heating zone of the traditional continuous heating furnace, so that the low investment can be realized, the radiant heat which is scattered out of the furnace is reduced, the thermal efficiency of the continuous heating furnace is improved, the stability of the furnace pressure is enhanced, the cost is reduced, the efficiency is improved, and the economic benefit is excellent.

Description

Continuous heating furnace, hanging wall for continuous heating furnace and manufacturing method of hanging wall
Technical Field
The invention relates to the technical field of industrial furnaces, in particular to a continuous heating furnace, a hanging wall for the continuous heating furnace and a manufacturing method of the hanging wall for the continuous heating furnace.
Background
In the production and manufacturing process of metal materials, heating and heat treatment are required, and production lines with high capacity requirements often adopt continuous heating furnaces to heat and heat the metal materials. Traditionally, continuous furnace furnaces are not sealed and the metal material passes directly through the furnace zone without being retained.
Fig. 1 shows a conventional continuous heating furnace. As shown in fig. 1, a conventional continuous heating furnace includes a furnace chamber 1, a burner 2 and an outlet sealing door 3, wherein a metal material passes through a radiation preheating section and a heating chamber of the furnace chamber 1, and then is discharged through the outlet sealing door 3 to realize a heating or heat treatment process.
However, when the conventional continuous heating furnace is operated, since the outlet sealing door 3 has limited thermal insulation, a large amount of radiant heat in the last heating zone is scattered to the outside of the furnace through the outlet sealing door 3, so that the thermal efficiency of the heating furnace is reduced, and therefore, the furnace pressure is reduced, and the stability of the furnace pressure of the whole heating furnace is deteriorated.
Therefore, the conventional continuous heating furnace has the following disadvantages: the heating furnace has low heat efficiency; the furnace pressure stability is poor.
Accordingly, there is a need in the art for an improved continuous furnace that eliminates or at least alleviates some or all of the above-mentioned deficiencies of the prior art.
Disclosure of Invention
In view of the above technical problems in the prior art, an object of the present invention is to provide an improved continuous heating furnace, which can shield heat radiation by installing a hanging wall having the same width as a hearth and a height not affecting the passage of objects or heating materials behind a last burner of a last heating zone of the continuous heating furnace, thereby effectively preventing heat of the heating furnace from overflowing, improving the thermal efficiency of the heating furnace, and enhancing the stability of the furnace pressure. In addition, the invention also provides a hanging wall for the continuous heating furnace and a manufacturing method of the hanging wall for the continuous heating furnace.
It is emphasized that, unless otherwise indicated, the terms used herein correspond to the ordinary meanings of the various technical and scientific terms in the art, and the meanings of the technical terms defined in the various technical dictionaries, textbooks, etc.
In accordance with an embodiment of the present invention, there is provided a continuous heating furnace including a heating chamber for heating objects located within a firebox, and an exit seal door for discharging the heated objects out of the firebox, wherein the heating chamber includes a plurality of heating zones, wherein,
the heating furnace also comprises a hanging wall made of refractory materials, which is arranged between the last heating zone of the continuous heating furnace and the outlet sealing door and is suspended at the top of the heating chamber, wherein the width of the hanging wall is equal to that of the hearth, and the vertical height of the hanging wall suspended from the top of the heating chamber does not prevent the heated objects from passing through and being discharged from the outlet sealing door.
Further, the hanging wall may include a fixed connection device for connecting to the top of the heating chamber, and a wall body hung below the fixed connection device, wherein the wall body may be built up by rows of hanging bricks.
Further, the fixed connection device may include two rows of hangers arranged in pairs, and a virtual plane located between the two rows of hangers may be set as a middle symmetrical plane, wherein the hangers may be groove-shaped, and a bottom surface of the groove may face the middle symmetrical plane, wherein the hangers may have an axisymmetric shape having an axisymmetric plane perpendicular to the middle symmetrical plane.
Further, the hanger may include:
an earth-shaped outer layer which is farthest from the middle symmetrical plane, can form the outermost layer of the groove, and can have an earth-shaped shape on a cross section parallel to the middle symmetrical plane, wherein the earth-shaped outer layer can be integrally formed and can be sequentially divided into a first bent upper part for connecting to the top of the heating chamber, a middle cylindrical part with a first threaded hole and a first wing-shaped lower part for connecting to a lower wall body from top to bottom;
a middle groove portion that may be adjacent to a side of the soil-shaped outer layer close to the middle symmetrical plane and may have a shape of "quarter-right" such that the middle groove portion extends from a first bent upper portion of the soil-shaped outer layer to a lower portion of the first wing, and may be provided with a second screw hole at a position corresponding to the first screw hole of the middle cylindrical portion, wherein the first screw hole and the second screw hole have an equal diameter;
the 'I' -shaped inner layer can extend from the middle groove part to the middle symmetrical surface along the horizontal direction and can vertically have the height from the first wing-shaped lower part of the 'soil' -shaped outer layer to the circle center of the first threaded hole, wherein the 'I' -shaped inner layer can be sequentially divided into a recessed top part, a middle connecting part and a second wing-shaped lower part used for connecting a wall body below from top to bottom, and an open semicircular hole part can be arranged at the corresponding position of the recessed top part and the second threaded hole of the middle groove part.
Further, the fixed connecting device can also comprise a plurality of connecting shafts, and each connecting shaft can penetrate through the first threaded hole, the second threaded hole and the semicircular hole part of each pair of hanging pieces so as to fixedly connect each pair of hanging pieces together.
Further, wherein, in the "earth" -shaped outer layer, the bent upper portion may include a horizontal portion extending horizontally toward the middle symmetrical plane, and a vertical upper portion connected to the middle cylindrical portion, and the first airfoil lower portion may include a vertical lower portion connected to the middle cylindrical portion, and a first airfoil bottom portion having first protruding portions protruding from the vertical lower portion in directions away from both sides of the middle cylindrical portion, respectively;
in the "i" shaped inner layer, the second airfoil lower portion may have a second airfoil bottom portion having second protruding portions protruding from the intermediate connection portion in directions away from both sides of the axial symmetry plane, respectively.
Further, the hanging brick can comprise a first hanging brick A and a second hanging brick A2, wherein the first hanging brick A can be H-shaped, and the second hanging brick A2 can have the shape of the upper half or the lower half of the H-shaped first hanging brick A; wherein the first hanger brick a may be connected to the first wing-shaped lower part and the second wing-shaped lower part of the hanger.
Further, the hanging brick can be a high-alumina brick.
Preferably, the hanging brick can be made of diatomite, an alumina silicate fiber blanket, a polycrystalline mullite fiber blanket or a zirconium-containing ceramic fiber module.
On the other hand, according to another embodiment of the present invention, there is provided a hanging wall for use in any one of the continuous heating furnaces, wherein the hanging wall is made of a refractory material, is provided between the last heating zone and the exit sealing door of the continuous heating furnace, and is suspended from the top of the heating chamber of the continuous heating furnace, wherein the width of the hanging wall is equal to that of the hearth, and the vertical height of the hanging wall suspended from the top of the heating chamber does not prevent the heated object from passing through and being discharged from the exit sealing door, wherein the hanging wall includes a fixed connecting device for connecting to the top of the heating chamber, and a wall body suspended below the fixed connecting device, wherein the wall body is constructed by a plurality of rows of high-alumina bricks.
Further, according to still another embodiment of the present invention, there is provided a method of manufacturing a hanging wall for a continuous heating furnace, wherein the method includes the steps of:
manufacturing a hanging wall for the continuous heating furnace, which comprises a fixed connecting device for connecting to the top of a heating chamber of the continuous heating furnace and a wall body hung below the fixed connecting device, wherein the wall body is built by a plurality of rows of high-alumina bricks;
a hanging wall which has the same width with the hearth and the same height without influencing the passing of objects is built by the fixed connecting device and the high-alumina bricks;
when the continuous heating furnace is built, a hanging wall is additionally arranged between the last heating area of the continuous heating furnace and the outlet sealing door.
The continuous heating furnace, the hanging wall for the continuous heating furnace and the manufacturing method thereof provided by the embodiment of the invention have the following beneficial effects: the hanging wall made of refractory materials is arranged in the last heating zone of the traditional continuous heating furnace, so that the low investment can be realized, the radiant heat which is scattered outside the furnace is reduced, the heat efficiency of the continuous heating furnace is improved, the stability of the furnace pressure is enhanced, the cost is reduced, the efficiency is improved, and the economic benefit is excellent.
Drawings
The accompanying drawings, which are included to provide a further understanding of embodiments of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic view showing an internal structure of a continuous heating furnace of the prior art;
FIG. 2 is a view schematically showing the internal structure of a continuous heating furnace according to an embodiment of the present invention;
FIG. 3 schematically illustrates the hanging wall and the exit sealing door of FIG. 2;
FIG. 4 schematically shows a front view of the hanging wall of FIG. 3 and a side view through section I-I and section II-II, respectively;
FIG. 5 schematically illustrates a front view, a side view, and a rear view of the hanger of FIG. 4, respectively;
FIG. 6 schematically illustrates a front view and a side view of the first hanging brick A of FIG. 4;
FIG. 7 schematically illustrates a front view and a side view of the second hanging tile A2 of FIG. 4; and
fig. 8 is a flowchart illustrating a method of manufacturing a hanging wall for a continuous heating furnace according to an embodiment of the present invention.
Reference numerals for the elements of the drawings
1: a hearth; 2: burning a nozzle; 3: an outlet sealing door;
100: heating furnace; 110: hanging a wall; 111: a fixed connection device; 112: a wall body; 113: a hanger; 114: the outer layer of the shape of the Chinese character 'tu'; 115: a middle groove part; 116: an I-shaped inner layer; 117: a connecting shaft; 120: a hearth; 130: a heating chamber; 131: burning a nozzle; 140: an outlet sealing door;
O1: a middle symmetry plane; o is2: an axial symmetry plane.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below with reference to the specific embodiments of the present invention and the accompanying drawings. It is to be understood that the described embodiments are merely a few embodiments of the invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.
The technical scheme provided by the embodiment of the invention is described in detail below with reference to the accompanying drawings.
In one aspect, as shown in fig. 2, according to an embodiment of the present invention, there is provided a continuous heating furnace 100 including a heating chamber 130 for heating objects, which is located within a firebox 120, and an exit sealing door 140 for discharging the heated objects out of the firebox 120, wherein the heating chamber 130 includes a plurality of heating zones, wherein,
the heating furnace 100 further includes a hanging wall 110 made of a refractory material, which is disposed between the last heating zone of the continuous heating furnace 100 and the exit sealing door 140 and is suspended from the top of the heating chamber 130, wherein the hanging wall 110 has a width equal to that of the firebox 120, and the vertical height of the hanging wall 110 suspended from the top of the heating chamber 130 does not prevent the heated object from passing through and being discharged from the exit sealing door 140.
Further, each heating zone may be provided with a plurality of burners 131. In one example, the hanging wall 110 may be disposed between the last burner 131 and the outlet sealing door 140 of the last heating zone of the continuous heating furnace 100.
Fig. 3 schematically shows the hanging wall and the outlet sealing door of fig. 2, and fig. 4 schematically shows a front view of the hanging wall of fig. 3 and a side view of a section through the sections I-I and II-II, respectively. FIG. 5 schematically illustrates a front view, a side view, and a rear view of the hanger of FIG. 4, respectively
In one embodiment, referring to fig. 3 and 4, the hanging wall 110 may include a fixed connection device 111 for connecting to the top of the heating chamber 130, and a wall 112 suspended below the fixed connection device 111, wherein the wall 112 may be constructed by rows of hanging bricks. Referring to fig. 3, a gap between the wall body 112 and the outlet sealing door 140 is a discharge passage of the heated object.
In one embodiment, referring to fig. 4 and 5, the fixed connection device 111 may include two rows of hangers 113 arranged in pairs, and a virtual plane located between the two rows of hangers 113 may be set as a middle symmetry plane O1Wherein the hanging member 113 may be groove-shaped, and the bottom of the groove faces the middle symmetry plane O1Wherein the hanging member 113 may have an axisymmetric shape having a plane of symmetry O with the middle1Perpendicular axial symmetry plane O2。
In one embodiment, referring to fig. 5, the hanger 113 may include:
and the middle symmetry plane O1The outermost "soil" shaped skin 114, which may form the outermost layer of the groove, may be parallel to the median plane of symmetry O1Has a shape of a letter "soil" in cross section, wherein the outer layer 114 of letter "soil" may be integrally formed and may be divided in order from top to bottom for connection to the heating chamber 130A first bent upper part at the top, a middle cylindrical part with a first threaded hole, and a first wing-shaped lower part for connecting the lower wall 112;
a middle recessed portion 115 which may be proximate to the approximately middle symmetry plane O of the outer layer of the shape of a Chinese character' tu1And may have an "right-angled" shape such that the middle groove portion 115 may extend from the first bent upper portion of the "earth" shaped outer layer 114 to the first airfoil lower portion, and may be provided with a second screw hole at a position corresponding to the first screw hole of the middle cylindrical portion, wherein the first and second screw holes may have an equal diameter;
an i-shaped inner layer 116, which may extend horizontally from the middle groove portion 115 to the middle symmetrical surface O1, and may have a height extending vertically from the lower portion of the first wing of the i-shaped outer layer 114 to the center of the first threaded hole, wherein the i-shaped inner layer 116 may be sequentially divided, from top to bottom, into a recessed top portion, a middle connection portion, and a second wing lower portion for connecting the lower wall 112, wherein the recessed top portion may be provided with an open semicircular hole portion at a position corresponding to the second threaded hole of the middle groove portion 115.
In one embodiment, the lower portion of the first wing of the outer layer 114, the bottom of the middle groove 115, and the lower portion of the second wing of the inner layer 116 may be integral. In other embodiments, the lower portion of the first wing of the outer layer 114, the bottom of the middle groove 115, and the lower portion of the second wing of the inner layer 116 may be fixedly attached together.
In one embodiment, referring to fig. 4 and 5, the fixed connection 111 may further include a plurality of connection shafts 117, each connection shaft 117 may pass through the respective first and second threaded holes and the semicircular hole portion of each pair of hangers 113 to fixedly connect each pair of hangers 113 together. In one example, the connection shaft 117 may be a stud bolt, or other suitable threaded connection.
In one embodiment, referring to FIG. 5, in the "Earth" shaped outer layer 114, the upper portion of the bend may include a plane of symmetry O towards the middle1A horizontal portion extending horizontally, and a vertical upper portion connected to the intermediate cylindrical portion, andthe first airfoil lower portion includes a vertical lower portion connected to the intermediate cylindrical portion and has a symmetry plane O away from the vertical lower portion2The first wing profile bottom of the first protruding part protruding from the two sides of the base.
In one embodiment, referring to FIG. 5, in the I-shaped inner layer 116, the second wing-shaped lower portion may have a symmetry plane O away from the middle connection portion2The two side directions of the second wing section bottom portion of the second protruding portion.
In one embodiment, referring to fig. 4, 6 and 7, the hanging tiles constituting the wall 112 may include a first hanging tile a and a second hanging tile a2, wherein the first hanging tile a may be in an "i" shape, and the second hanging tile a2 may have a shape of an upper half or a lower half of the "i" shape of the first hanging tile a, wherein the first hanging tile a may be connected to the first wing-shaped lower portion and the second wing-shaped lower portion of the hanging member 113.
In one embodiment, the hanging brick may be a high alumina brick. Preferably, the hanging brick can be made of diatomite, an alumina silicate fiber blanket, a polycrystalline mullite fiber blanket or a zirconium-containing ceramic fiber module.
As shown in fig. 4 and 5, a plurality of rows of the first hanging bricks a in an i shape are arranged in order, wherein the top of the i shape of a portion of the first hanging bricks a can be connected to the bottom surfaces of the first wing-shaped lower part and the second wing-shaped lower part of the hanging member 113, and the top of the i shape of another portion of the first hanging bricks a can be respectively engaged between the first wing-shaped lower part and the middle cylindrical part, and between the second wing-shaped lower part and the middle connecting part, so that the first hanging bricks a can be connected to the first wing-shaped lower part and the second wing-shaped lower part of the hanging member 113, and the heights of the first hanging bricks a of adjacent rows can be different by half of the height of the first hanging brick a or the height of the second hanging brick a 2. Between the topmost layer and the bottommost layer of the wall body 112, the tops and the middle narrow parts of the I-shaped first hanging bricks A in adjacent rows can be mutually clamped, so that the first hanging bricks A in each row and each column are arranged and connected tightly.
The lowermost layer of the wall 112 may be formed by engaging a part of the lower portion of the first hanging brick a and the second hanging brick a 2.
On the other hand, there is provided a hanging wall 110 for the continuous heating furnace 100 as described above, wherein the hanging wall 110 is made of refractory material, is disposed between the last heating zone of the continuous heating furnace 100 and the exit sealing door 140, and is suspended at the top of the heating chamber 130 of the continuous heating furnace 100, wherein the width of the hanging wall 110 is equal to that of the hearth 120, and the vertical height of the hanging wall 110 suspended from the top of the heating chamber 130 does not obstruct the heated object from passing through and being discharged from the exit sealing door 140, wherein the hanging wall 110 includes a fixed connecting device 111 for connecting to the top of the heating chamber 130, and a wall 112 suspended below the fixed connecting device 111, wherein the wall 112 is built up by rows of high-alumina bricks.
In one embodiment, the hanging wall 110 may be disposed between the last burner 131 and the outlet sealing door 140 of the last heating zone of the continuous heating furnace 100.
On the other hand, as shown in fig. 8, according to an embodiment of the present invention, there is provided a method of manufacturing a hanging wall 110 for a continuous heating furnace 100, wherein the method includes the steps of:
a hanging wall 110 for a continuous heating furnace 100 as described above is manufactured, which includes a fixed connection device 111 for connecting to the top of a heating chamber 130 of the continuous heating furnace 100, and a wall 112 hung below the fixed connection device 111, wherein the wall 112 is built up by rows of high-alumina bricks;
a hanging wall 110 which has the same width with the hearth 120 and the same height without influencing the passing of objects is built by the fixed connecting device 111 and the high-alumina bricks;
when the continuous heating furnace 100 is constructed, a hanging wall 110 is installed between the last heating zone of the continuous heating furnace 100 and the exit sealing door 140.
In one implementation, the hanging wall 110 may be installed between the last burner 131 and the outlet sealing door 140 of the last heating zone of the continuous heating furnace 100.
In the present invention, the object to be heated may include, but is not limited to, a metal material, and may also be a non-metal material.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
Finally, it should be noted that: the above examples are only for illustrating the technical solutions of the present invention, and not for limiting the same; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.

Claims (10)

1. A continuous heating furnace (100) comprising a heating chamber (130) for heating an object located in a firebox (120), and an exit seal door (140) for discharging the heated object out of the firebox (120), wherein the heating chamber (130) comprises a plurality of heating zones,
it is characterized in that the preparation method is characterized in that,
the heating furnace (100) also comprises a hanging wall (110) made of refractory materials, which is arranged between the last heating zone of the continuous heating furnace (100) and the outlet sealing door (140) and is suspended at the top of the heating chamber (130), wherein the width of the hanging wall (110) is equal to that of the hearth (120), and the vertical height of the hanging wall (110) suspended from the top of the heating chamber (130) does not obstruct the heated objects from passing through and being discharged from the outlet sealing door (140).
2. The continuous heating furnace (100) according to claim 1, wherein the hanging wall (110) comprises a fixed connection means (111) for connecting to the top of the heating chamber (130), and a wall body (112) hung below the fixed connection means (111), wherein the wall body (112) is constructed by rows of hanging bricks.
3. A continuous heating furnace (100) according to claim 2, characterized in that the fixed connection means (111) comprise two rows of hangers (113) arranged in pairs, and a virtual plane located in the middle of the two rows of hangers (113) is set as a middle symmetry plane (O)1) Wherein the hanging part (113) is groove-shaped, and the bottom surfaces of the grooves face the middle symmetrical surface (O)1) Wherein the hanger (113) has an axisymmetric shape having a plane (O) symmetrical to the center1) Perpendicular axial symmetry plane (O)2)。
4. The continuous heating furnace (100) according to claim 3, wherein the hanger (113) comprises:
with a central plane of symmetry (O)1) The outer layers (114) of the shape of the Chinese character 'tu' which are the furthest apart, which form the outermost layers of the grooves and are parallel to the median plane of symmetry (O)1) Has a shape like the Chinese character 'tu', wherein the outer layer (114) of the Chinese character 'tu' is integrally formed and is divided into a first bent upper part for connecting to the top of the heating chamber (130), a middle cylindrical part with a first threaded hole and a first wing-shaped lower part for connecting to the lower wall body (112) from top to bottom in sequence;
a middle recessed portion (115) adjacent to the approximately middle symmetrical plane (O) of the outer layer shaped like Chinese character' tu1) Has a shape of "quarter-right" such that the middle groove portion (115) extends from the first bent upper portion of the outer layer (114) of the shape of "earth" to the lower portion of the first airfoil, and is provided with a second threaded hole at a position corresponding to the first threaded hole of the middle cylindrical portion, wherein the first threaded hole and the second threaded hole have the same diameter;
an I-shaped inner layer (116) extending horizontally from the central recessed portion (115) to the central symmetrical plane (O)1) Extend and vertically have the height from the lower part of the first wing section of the outer layer (114) in the shape of the Chinese character 'tu' to the circle center of the first threaded hole, wherein the inner layer (116) in the shape of the Chinese character 'gong' is divided into a concave top, a middle connecting part and a wall body (112) used for connecting the lower part from top to bottom in sequence) Wherein the depressed top portion is provided with an open semicircular hole portion at a position corresponding to the second screw hole of the intermediate recessed portion (115).
5. The continuous heating furnace (100) according to claim 4, wherein the fixed connection means (111) further comprises a plurality of connection shafts (117), each connection shaft (117) passing through the respective first and second threaded holes and the semicircular hole portion of each pair of hangers (113) to fixedly connect each pair of hangers (113) together.
6. A continuous heating furnace (100) according to claim 5, wherein, in the outer layer (114) of the shape of the letter "Earth", the bent upper portion comprises a plane of symmetry (O) directed towards the middle1) A horizontal part extending horizontally, and a vertical upper part connected to the middle cylindrical part, and the first airfoil lower part comprises a vertical lower part connected to the middle cylindrical part, and a vertical upper part having a symmetry plane (O) facing away from the vertical lower part2) The first wing profile bottom of the first protruding part protruding from the two side directions;
in the I-shaped inner layer (116), the second wing-shaped lower part has a symmetry plane (O) away from the central connection part2) The two side directions of the second wing section bottom portion of the second protruding portion.
7. The continuous heating furnace (100) according to claim 6, wherein the hanging brick comprises a first hanging brick A and a second hanging brick A2, wherein the first hanging brick A is in an "I" shape, and the second hanging brick A2 has the shape of the upper half or the lower half of the "I" shape of the first hanging brick A;
wherein the first hanger brick A is connected to the first wing-shaped lower part and the second wing-shaped lower part of the hanger (113).
8. The continuous heating furnace (100) according to claim 7, characterized in that the hanging brick is a high alumina brick, preferably made of diatomaceous earth, an alumina silicate fiber blanket, a polycrystalline mullite fiber blanket, or a zirconium-containing ceramic fiber module.
9. A hanging wall (110) for a continuous heating furnace (100) according to any one of claims 1 to 8, characterized by being made of refractory material, being disposed between the last heating zone and the exit sealing door (140) of the continuous heating furnace (100), and being suspended at the top of the heating chamber (130) of the continuous heating furnace (100), wherein the width of the hanging wall (110) is equal to that of the hearth (120), and the vertical height of the hanging wall (110) suspended from the top of the heating chamber (130) does not obstruct the heated objects from passing through and being discharged from the exit sealing door (140), wherein the hanging wall (110) comprises a fixed connection means (111) for connecting to the top of the heating chamber (130), and a wall body (112) suspended below the fixed connection means (111), wherein the wall body (112) is built up by rows of high alumina bricks.
10. A method for manufacturing a hanging wall (110) for a continuous heating furnace (100), comprising the steps of:
manufacturing a hanging wall (110) for a continuous heating furnace (100) according to claim 9, comprising a fixed connection means (111) for connecting to the top of a heating chamber (130) of the continuous heating furnace (100), and a wall body (112) suspended below the fixed connection means (111), wherein the wall body (112) is built up by rows of high alumina bricks;
a hanging wall (110) which has the same width as the hearth (120) and the same height without influencing the passing of objects is built by the fixed connecting device (111) and the high-alumina bricks;
when the continuous heating furnace (100) is built, a hanging wall (110) is additionally arranged between the last heating area of the continuous heating furnace (100) and the outlet sealing door (140).
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Publication number Priority date Publication date Assignee Title
US3797993A (en) * 1971-07-07 1974-03-19 Degussa Tunnel kiln
CN1076670A (en) * 1992-03-21 1993-09-29 淄博平板玻璃厂 Prestressed hanging well for glass smelting furnace
CN201301298Y (en) * 2008-11-13 2009-09-02 武汉科技大学 Duplex exhaust gas reversed jet circulation stamp charging coke oven
CN204849000U (en) * 2015-09-01 2015-12-09 唐山亚捷机械有限公司 A heating furnace for carburization or carbonitriding
CN205669054U (en) * 2016-06-15 2016-11-02 中冶华天南京工业炉有限公司 Non-water-cooled partition wall

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3797993A (en) * 1971-07-07 1974-03-19 Degussa Tunnel kiln
CN1076670A (en) * 1992-03-21 1993-09-29 淄博平板玻璃厂 Prestressed hanging well for glass smelting furnace
CN201301298Y (en) * 2008-11-13 2009-09-02 武汉科技大学 Duplex exhaust gas reversed jet circulation stamp charging coke oven
CN204849000U (en) * 2015-09-01 2015-12-09 唐山亚捷机械有限公司 A heating furnace for carburization or carbonitriding
CN205669054U (en) * 2016-06-15 2016-11-02 中冶华天南京工业炉有限公司 Non-water-cooled partition wall

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